From: John W. Linville <linville@redhat.com>
Date: Tue, 18 Dec 2007 17:44:29 -0500
Subject: [net] iwl4965 updates
Message-id: 20071218224428.GG11328@redhat.com
O-Subject: [RHEL5.2 PATCH 4/4] iwl4965 updates
Bugzilla: 252981
This superbly monstrous patch updates the iwlwifi driver to match
what is in wireless-2.6 as of today. It specifically addresses the
following bugzillas:
BZ252981
BZ253027
BZ253067
BZ256001
Lot of testing by me on Dell m4300 laptop equipped w/ iwl4965 hardware.
Acked-by: "David S. Miller" <davem@redhat.com>
diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
index 2a05163..9d6f9d4 100644
--- a/drivers/net/wireless/Makefile
+++ b/drivers/net/wireless/Makefile
@@ -44,4 +44,5 @@ obj-$(CONFIG_PCMCIA_WL3501) += wl3501_cs.o
obj-$(CONFIG_USB_ZD1201) += zd1201.o
-obj-$(CONFIG_IWLWIFI) += iwlwifi/
+obj-$(CONFIG_IWL3945) += iwlwifi/
+obj-$(CONFIG_IWL4965) += iwlwifi/
diff --git a/drivers/net/wireless/iwlwifi/Kconfig b/drivers/net/wireless/iwlwifi/Kconfig
index 295acf2..93ee596 100644
--- a/drivers/net/wireless/iwlwifi/Kconfig
+++ b/drivers/net/wireless/iwlwifi/Kconfig
@@ -1,30 +1,72 @@
-config IWLWIFI
- bool "Intel Wireless WiFi Link Drivers"
+config IWL4965
+ tristate "Intel Wireless WiFi 4965AGN"
depends on PCI && MAC80211 && NET_RADIO && EXPERIMENTAL
select FW_LOADER
- default n
---help---
- Select to enable drivers based on the iwlwifi project. This
- project provides a common foundation for Intel's wireless
- drivers designed to use the mac80211 subsystem.
-
- See <file:Documentation/networking/README.iwlwifi> for
- information on the capabilities currently enabled in this
- driver and for tips for debugging issues and problems.
-
-config IWLWIFI_DEBUG
- bool "Enable full debugging output in iwlwifi drivers"
- depends on IWLWIFI
- default y
+ Select to build the driver supporting the:
+
+ Intel Wireless WiFi Link 4965AGN
+
+ This driver uses the kernel's mac80211 subsystem.
+
+ See <file:Documentation/networking/README.iwlwifi> for
+ information on the capabilities currently enabled in this
+ driver and for tips for debugging any issues or problems.
+
+ In order to use this driver, you will need a microcode (uCode)
+ image for it. You can obtain the microcode from:
+
+ <http://intellinuxwireless.org/>.
+
+ See the above referenced README.iwlwifi for information on where
+ to install the microcode images.
+
+ If you want to compile the driver as a module ( = code which can be
+ inserted in and remvoed from the running kernel whenever you want),
+ say M here and read <file:Documentation/kbuild/modules.txt>. The
+ module will be called iwl4965.ko.
+
+config IWL4965_QOS
+ bool "Enable Wireless QoS in iwl4965 driver"
+ depends on IWL4965
+ ---help---
+ This option will enable wireless quality of service (QoS) for the
+ iw4965 driver.
+
+config IWL4965_HT
+ bool "Enable 802.11n HT features in iwl4965 driver"
+ depends on EXPERIMENTAL
+ depends on IWL4965 && IWL4965_QOS
+ depends on n
+ ---help---
+ This option enables IEEE 802.11n High Throughput features
+ for the iwl4965 driver.
+
+config IWL4965_SPECTRUM_MEASUREMENT
+ bool "Enable Spectrum Measurement in iw4965 driver"
+ depends on IWL4965
---help---
- This option will enable debug tracing output for the iwlwifi
- drivers.
+ This option will enable spectrum measurement for the iwl4965 driver.
- This will result in the kernel module being ~100k larger. You can
- control which debug output is sent to the kernel log by setting the
- value in
+config IWL4965_SENSITIVITY
+ bool "Enable Sensitivity Calibration in iwl4965 driver"
+ depends on IWL4965
+ ---help---
+ This option will enable sensitivity calibration for the iwl4965
+ driver.
+
+config IWL4965_DEBUG
+ bool "Enable full debugging output in iwl4965 driver"
+ depends on IWL4965
+ ---help---
+ This option will enable debug tracing output for the iwl4965
+ driver.
+
+ This will result in the kernel module being ~100k larger. You can
+ control which debug output is sent to the kernel log by setting the
+ value in
- /sys/bus/pci/drivers/${DRIVER}/debug_level
+ /sys/bus/pci/drivers/${DRIVER}/debug_level
This entry will only exist if this option is enabled.
@@ -33,64 +75,76 @@ config IWLWIFI_DEBUG
% echo 0x43fff > /sys/bus/pci/drivers/${DRIVER}/debug_level
You can find the list of debug mask values in:
- drivers/net/wireless/mac80211/iwlwifi/iwl-debug.h
+ drivers/net/wireless/iwlwifi/iwl-4965-debug.h
If this is your first time using this driver, you should say Y here
as the debug information can assist others in helping you resolve
any problems you may encounter.
-config IWL4965
- tristate "Intel Wireless WiFi 4965AGN"
- depends on m && IWLWIFI && EXPERIMENTAL
- default m
+config IWL3945
+ tristate "Intel PRO/Wireless 3945ABG/BG Network Connection"
+ depends on PCI && MAC80211 && NET_RADIO && EXPERIMENTAL
+ select FW_LOADER
---help---
Select to build the driver supporting the:
- Intel Wireless WiFi Link 4965AGN
+ Intel PRO/Wireless 3945ABG/BG Network Connection
This driver uses the kernel's mac80211 subsystem.
- See <file:Documentation/networking/README.iwlwifi> for
- information on the capabilities currently enabled in this
+ See <file:Documentation/networking/README.iwlwifi> for
+ information on the capabilities currently enabled in this
driver and for tips for debugging any issues or problems.
In order to use this driver, you will need a microcode (uCode)
image for it. You can obtain the microcode from:
- <http://intellinuxwireless.org/>.
+ <http://intellinuxwireless.org/>.
- See the above referenced README.iwlwifi for information on where
+ See the above referenced README.iwlwifi for information on where
to install the microcode images.
If you want to compile the driver as a module ( = code which can be
inserted in and remvoed from the running kernel whenever you want),
- say M here and read <file:Documentation/modules.txt>. The module
- will be called iwl4965.ko.
+ say M here and read <file:Documentation/kbuild/modules.txt>. The
+ module will be called iwl3945.ko.
-config IWL3945
- tristate "Intel PRO/Wireless 3945ABG/BG Network Connection"
- depends on m && IWLWIFI && EXPERIMENTAL
- default m
+config IWL3945_QOS
+ bool "Enable Wireless QoS in iwl3945 driver"
+ depends on IWL3945
---help---
- Select to build the driver supporting the:
+ This option will enable wireless quality of service (QoS) for the
+ iwl3945 driver.
- Intel PRO/Wireless 3945ABG/BG Network Connection
+config IWL3945_SPECTRUM_MEASUREMENT
+ bool "Enable Spectrum Measurement in iwl3945 drivers"
+ depends on IWL3945
+ ---help---
+ This option will enable spectrum measurement for the iwl3945 driver.
- This driver uses the kernel's mac80211 subsystem.
+config IWL3945_DEBUG
+ bool "Enable full debugging output in iwl3945 driver"
+ depends on IWL3945
+ ---help---
+ This option will enable debug tracing output for the iwl3945
+ driver.
- See <file:Documentation/networking/README.iwlwifi> for
- information on the capabilities currently enabled in this
- driver and for tips for debugging any issues or problems.
+ This will result in the kernel module being ~100k larger. You can
+ control which debug output is sent to the kernel log by setting the
+ value in
- In order to use this driver, you will need a microcode (uCode)
- image for it. You can obtain the microcode from:
+ /sys/bus/pci/drivers/${DRIVER}/debug_level
- <http://intellinuxwireless.org/>.
+ This entry will only exist if this option is enabled.
- See the above referenced README.iwlwifi for information on where
- to install the microcode images.
+ To set a value, simply echo an 8-byte hex value to the same file:
+
+ % echo 0x43fff > /sys/bus/pci/drivers/${DRIVER}/debug_level
+
+ You can find the list of debug mask values in:
+ drivers/net/wireless/iwlwifi/iwl-3945-debug.h
+
+ If this is your first time using this driver, you should say Y here
+ as the debug information can assist others in helping you resolve
+ any problems you may encounter.
- If you want to compile the driver as a module ( = code which can be
- inserted in and remvoed from the running kernel whenever you want),
- say M here and read <file:Documentation/modules.txt>. The module
- will be called iwl3945.ko.
diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile
index 8c0bdc7..3bbd383 100644
--- a/drivers/net/wireless/iwlwifi/Makefile
+++ b/drivers/net/wireless/iwlwifi/Makefile
@@ -1,29 +1,5 @@
-# NOTE: We use common code from base.c to build driver
-# specific binaries based on the #define IWL -- the target
-# setup below creates a specific driver target from base.c
-#
-# NOTE2: base-XXXX.o has -D"KBUILD_MODNAME=KBUILD_STR(...)" in order to
-# prevent the following kbuild error:
-# include/linux/pci.h:603: error: `KBUILD_MODNAME' undeclared (first \
-# use in this function)
-#
-# -jpk
-
obj-$(CONFIG_IWL3945) += iwl3945.o
-iwl3945-objs = base-3945.o iwl-3945.o iwl-3945-rs.o
-CFLAGS_iwl-3945.o = -DIWL=3945
-CFLAGS_iwl-3945-rs.o = -DIWL=3945
-CFLAGS_base-3945.o = -DIWL=3945 -D"KBUILD_MODNAME=KBUILD_STR(iwl3945)"
-$(obj)/base-3945.o: $(src)/base.c FORCE
- $(call cmd,force_checksrc)
- $(call if_changed_rule,cc_o_c)
+iwl3945-objs = iwl3945-base.o iwl-3945.o iwl-3945-rs.o
obj-$(CONFIG_IWL4965) += iwl4965.o
-iwl4965-objs = base-4965.o iwl-4965.o iwl-4965-rs.o
-CFLAGS_iwl-4965.o = -DIWL=4965
-CFLAGS_iwl-4965-rs.o = -DIWL=4965
-CFLAGS_base-4965.o = -DIWL=4965 -D"KBUILD_MODNAME=KBUILD_STR(iwl4965)"
-$(obj)/base-4965.o: $(src)/base.c FORCE
- $(call cmd,force_checksrc)
- $(call if_changed_rule,cc_o_c)
-
+iwl4965-objs = iwl4965-base.o iwl-4965.o iwl-4965-rs.o
diff --git a/drivers/net/wireless/iwlwifi/base.c b/drivers/net/wireless/iwlwifi/base.c
index 4f7fe12..e69de29 100644
--- a/drivers/net/wireless/iwlwifi/base.c
+++ b/drivers/net/wireless/iwlwifi/base.c
@@ -1,9046 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * James P. Ketrenos <ipw2100-admin@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-/*
- * NOTE: This file (base.c) is used to build to multiple hardware targets
- * by defining IWL to either 3945 or 4965. The Makefile used when building
- * the base targets will create base-3945.o and base-4965.o
- *
- * The eventual goal is to move as many of the #if IWL / #endif blocks out of
- * this file and into the hardware specific implementation files (iwl-XXXX.c)
- * and leave only the common (non #ifdef sprinkled) code in this file
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/version.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/wireless.h>
-#include <linux/firmware.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/if_arp.h>
-
-#include <net/ieee80211_radiotap.h>
-#include <net/mac80211.h>
-
-#include <asm/div64.h>
-
-#include "iwlwifi.h"
-#include "iwl-helpers.h"
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-u32 iwl_debug_level;
-#endif
-
-/******************************************************************************
- *
- * module boiler plate
- *
- ******************************************************************************/
-
-/* module parameters */
-int param_disable_hw_scan = 0;
-int param_debug = 0;
-int param_disable = 0; /* def: enable radio */
-int param_antenna = 0; /* def: 0 = both antennas (use diversity) */
-int param_hwcrypto = 0; /* def: using software encryption */
-int param_qos_enable = 0;
-
-/*
- * module name, copyright, version, etc.
- * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
- */
-
-#if IWL == 3945
-#define DRV_DESCRIPTION \
-"Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
-#elif IWL == 4965
-#define DRV_DESCRIPTION \
-"Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
-#else
-BUILD_BUG()
-#endif
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-#define VD "d"
-#else
-#define VD
-#endif
-
-#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENY
-#define VS "s"
-#else
-#define VS
-#endif
-
-#define IWLWIFI_VERSION "1.0.0k" VD VS
-#define DRV_COPYRIGHT "Copyright(c) 2003-2007 Intel Corporation"
-#define DRV_VERSION IWLWIFI_VERSION
-
-MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_VERSION(DRV_VERSION);
-MODULE_AUTHOR(DRV_COPYRIGHT);
-MODULE_LICENSE("GPL");
-
-/*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
- * DMA services
- *
- * Theory of operation
- *
- * A queue is a circular buffers with 'Read' and 'Write' pointers.
- * 2 empty entries always kept in the buffer to protect from overflow.
- *
- * For Tx queue, there are low mark and high mark limits. If, after queuing
- * the packet for Tx, free space become < low mark, Tx queue stopped. When
- * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
- * Tx queue resumed.
- *
- * The IPW operates with six queues, one receive queue in the device's
- * sram, one transmit queue for sending commands to the device firmware,
- * and four transmit queues for data.
- *
- * The four transmit queues allow for performing quality of service (qos)
- * transmissions as per the 802.11 protocol. Currently Linux does not
- * provide a mechanism to the user for utilizing prioritized queues, so
- * we only utilize the first data transmit queue (queue1).
- ***************************************************/
-
-static int iwl_queue_space(const struct iwl_queue *q)
-{
- int s = q->last_used - q->first_empty;
- if (q->last_used > q->first_empty)
- s -= q->n_bd;
-
- if (s <= 0)
- s += q->n_window;
- /* keep some reserve to not confuse empty and full situations */
- s -= 2;
- if (s < 0)
- s = 0;
- return s;
-}
-
-static inline int iwl_queue_inc_wrap(int index, int n_bd)
-{
- return (++index == n_bd) ? 0 : index;
-}
-
-static inline int iwl_queue_dec_wrap(int index, int n_bd)
-{
- return (index == 0) ? n_bd - 1 : index - 1;
-}
-
-static inline int x2_queue_used(const struct iwl_queue *q, int i)
-{
- return q->first_empty > q->last_used ?
- (i >= q->last_used && i < q->first_empty) :
- !(i < q->last_used && i >= q->first_empty);
-}
-
-static inline u8 get_next_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
-{
- if (is_huge)
- return q->n_window;
-
- return (u8) (index % q->n_window);
-}
-
-static int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
- int count, int size, u32 id)
-{
- q->n_bd = count;
- q->n_window = size;
- q->id = id;
-
- q->low_mark = q->n_window / 4;
- if (q->low_mark < 4)
- q->low_mark = 4;
-
- q->high_mark = q->n_window / 8;
- if (q->high_mark < 2)
- q->high_mark = 2;
-
- q->first_empty = q->last_used = 0;
-
- return 0;
-}
-
-static int iwl_tx_queue_alloc(struct iwl_priv *priv,
- struct iwl_tx_queue *txq, int count, u32 id)
-{
- struct pci_dev *dev = priv->pci_dev;
-
- if (id != IWL_CMD_QUEUE_NUM) {
- txq->txb = kmalloc(sizeof(txq->txb[0]) *
- TFD_QUEUE_SIZE_MAX, GFP_ATOMIC);
- if (!txq->txb) {
- IWL_ERROR("kmalloc for auxilary BD "
- "structures failed\n");
- goto error;
- }
- } else
- txq->txb = NULL;
-
- txq->bd = pci_alloc_consistent(dev,
- sizeof(struct iwl_tfd_frame) * TFD_QUEUE_SIZE_MAX,
- &txq->q.dma_addr);
-
- txq->q.element_size = sizeof(struct iwl_tfd_frame);
- if (!txq->bd) {
- IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
- sizeof(txq->bd[0]) * count);
- goto error;
- }
- txq->q.id = id;
-
- return 0;
-
- error:
- if (txq->txb) {
- kfree(txq->txb);
- txq->txb = NULL;
- }
-
- return -ENOMEM;
-}
-
-int iwl_tx_queue_init(struct iwl_priv *priv,
- struct iwl_tx_queue *txq, int count, u32 txq_id)
-{
- struct pci_dev *dev = priv->pci_dev;
- int len;
- int rc = 0;
-
- /* alocate command space + one big command for scan since scan
- * command is very huge the system will not have two scan at the
- * same time */
- len = sizeof(struct iwl_cmd) * count;
- if (txq_id == IWL_CMD_QUEUE_NUM);
- len += IWL_MAX_SCAN_SIZE;
- txq->cmd = pci_alloc_consistent(dev, len, &txq->dma_addr_cmd);
- if (!txq->cmd)
- return -ENOMEM;
-
- rc = iwl_tx_queue_alloc(priv, txq, count, txq_id);
- if (rc) {
- pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
-
- return -ENOMEM;
- }
-
- txq->need_update = 0;
- iwl_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, count, txq_id);
- iwl_hw_tx_queue_init(priv, txq);
-
- return 0;
-}
-
-/**
- * iwl_tx_queue_free - Deallocate DMA queue.
- * @txq: Transmit queue to deallocate.
- *
- * Empty queue by removing and destroying all BD's.
- * Free all buffers. txq itself is not freed.
- *
- */
-void iwl_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq)
-{
- struct iwl_queue *q = &txq->q;
- struct pci_dev *dev = priv->pci_dev;
- int len;
-
- if (q->n_bd == 0)
- return;
-
- /* first, empty all BD's */
- for (; q->first_empty != q->last_used;
- q->last_used = iwl_queue_inc_wrap(q->last_used, q->n_bd)) {
- iwl_hw_tx_queue_free_tfd(priv, txq);
- }
-
- len = sizeof(txq->cmd[0]) * q->n_window;
- if (q->id == IWL_CMD_QUEUE_NUM);
- len += IWL_MAX_SCAN_SIZE;
- pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
-
- /* free buffers belonging to queue itself */
- if (txq->q.n_bd)
- pci_free_consistent(dev, sizeof(struct iwl_tfd_frame) *
- txq->q.n_bd, txq->bd, txq->q.dma_addr);
-
- if (txq->txb) {
- kfree(txq->txb);
- txq->txb = NULL;
- }
-
- /* 0 fill whole structure */
- memset(txq, 0, sizeof(*txq));
-}
-
-const u8 BROADCAST_ADDR[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
-
-/*************** STATION TABLE MANAGEMENT ****
- *
- * NOTE: This needs to be overhauled to better synchronize between
- * how the iwl-4965.c is using iwl_hw_find_station vs. iwl-3945.c
- *
- * mac80211 should also be examined to determine if sta_info is duplicating
- * the functionality provided here
- */
-
-/**************************************************************/
-
-static u8 iwl_remove_station(struct iwl_priv *priv, const u8 * bssid, int is_ap)
-{
- int index = IWL_INVALID_STATION;
- int i;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- if (is_ap) {
- index = IWL_AP_ID;
- if ((priv->stations[index].used))
- priv->stations[index].used = 0;
- } else if (is_broadcast_ether_addr(bssid)) {
- index = IWL_BROADCAST_ID;
- if ((priv->stations[index].used))
- priv->stations[index].used = 0;
- } else
- for (i = IWL_STA_ID; i < priv->num_stations + IWL_STA_ID; i++) {
- if (priv->stations[i].used &&
- !compare_ether_addr(
- priv->stations[i].sta.sta.addr, bssid)) {
- index = i;
- priv->stations[index].used = 0;
- break;
- }
- }
-
- if (index != IWL_INVALID_STATION) {
- if (priv->num_stations > 0)
- priv->num_stations--;
- }
-
- spin_unlock_irqrestore(&priv->sta_lock, flags);
- return 0;
-}
-
-static void iwl_clear_stations_table(struct iwl_priv *priv)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
-
- priv->num_stations = 0;
- memset(priv->stations, 0,
- IWL_STATION_COUNT * sizeof(struct iwl_station_entry));
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-}
-
-u8 iwl_add_station(struct iwl_priv *priv, const u8 * bssid, int is_ap, u8 flags)
-{
- int i = IWL_STATION_COUNT;
- int index = IWL_INVALID_STATION;
- struct iwl_station_entry *station;
- unsigned long flags_spin;
-
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- if (is_ap) {
- index = IWL_AP_ID;
- if (priv->stations[index].used &&
- !compare_ether_addr(priv->stations[index].sta.sta.addr,
- bssid))
- goto done;
- } else if (is_broadcast_ether_addr(bssid)) {
- index = IWL_BROADCAST_ID;
- if (priv->stations[index].used &&
- !compare_ether_addr(priv->stations[index].sta.sta.addr,
- bssid))
- goto done;
- } else
- for (i = IWL_STA_ID; i < priv->num_stations + IWL_STA_ID; i++) {
- if (priv->stations[i].used &&
- !compare_ether_addr(priv->stations[i].sta.sta.addr,
- bssid))
- goto done;
-
- if (!priv->stations[i].used &&
- index == IWL_INVALID_STATION)
- index = i;
- }
-
- if (index != IWL_INVALID_STATION)
- i = index;
-
- if (i == IWL_STATION_COUNT) {
- index = IWL_INVALID_STATION;
- goto done;
- }
-
- IWL_DEBUG_ASSOC("Adding STA ID %d: " MAC_FMT "\n", i, MAC_ARG(bssid));
- station = &priv->stations[i];
-
- station->used = 1;
- station->current_rate.s.rate = IWL_RATE_1M_PLCP;
- memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd));
- memcpy(station->sta.sta.addr, bssid, ETH_ALEN);
- station->sta.mode = 0;
- station->sta.sta.sta_id = i;
- station->sta.station_flags = 0;
-
- /* todoG do we need this
- * all TID's disabled
- * priv->stations[i].sta.tid_disable_tx = 0xffff;
- */
- if ((priv->phymode == MODE_IEEE80211A) ||
- (priv->phymode == MODE_ATHEROS_TURBO))
- station->sta.tx_rate.rate_n_flags = IWL_RATE_6M_PLCP;
- else
- station->sta.tx_rate.rate_n_flags = IWL_RATE_1M_PLCP |
- priv->hw_setting.cck_flag;
-
- /* Turn on both antennas for the station... */
- station->sta.tx_rate.rate_n_flags |= RATE_MCS_ANT_AB_MSK;
-
- /*
- * priv->stations[i].sta.tx_rate.rate_n_flags |= RATE_MCS_ANT_B_MSK;
- * priv->stations[i].sta.tx_rate.rate_n_flags &= ~RATE_MCS_ANT_A_MSK;
- */
-
- station->sta.station_flags |= STA_MODIFY_TX_RATE_MSK;
-#if IWL == 4965
-#ifdef CONFIG_IWLWIFI_HT
- if (is_ap) {
- iwl4965_set_ht_add_station(priv, i, 0);
- iwl4965_set_rxon_chain(priv);
- }
-#endif /*CONFIG_IWLWIFI_HT*/
-#endif
- station->current_rate.rate_n_flags = station->sta.tx_rate.rate_n_flags;
-
- priv->num_stations++;
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
- iwl_send_add_station(priv, &station->sta, flags);
- return i;
-
- done:
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
- return index;
-}
-
-/* iwl_hw_find_station is implemented in iwl-3945 and iwl-4965 for now... */
-
-u8 iwl_sync_station(struct iwl_priv * priv, int sta_id, u16 tx_rate, u8 flags)
-{
- unsigned long flags_spin;
- struct iwl_station_entry *station;
-
- if (sta_id == IWL_INVALID_STATION)
- return IWL_INVALID_STATION;
-
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- station = &priv->stations[sta_id];
-
- station->sta.sta.modify_mask = STA_CONTROL_MODIFY_MSK;
- station->sta.tx_rate.rate_n_flags = tx_rate;
- station->current_rate.rate_n_flags = tx_rate;
- station->sta.mode = STA_CONTROL_MODIFY_MSK;
-
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
-
- iwl_send_add_station(priv, &station->sta, flags);
- IWL_DEBUG_RATE("SCALE sync station %d to rate %d\n",
- sta_id, tx_rate);
- return sta_id;
-}
-
-/*************** DRIVER STATUS FUNCTIONS *****/
-
-static inline int iwl_is_ready(struct iwl_priv *priv)
-{
- /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
- * set but EXIT_PENDING is not */
- return ((priv->status & (STATUS_READY |
- STATUS_GEO_CONFIGURED |
- STATUS_EXIT_PENDING)) ==
- (STATUS_READY | STATUS_GEO_CONFIGURED)) ? 1 : 0;
-}
-
-static inline int iwl_is_alive(struct iwl_priv *priv)
-{
- return (priv->status & STATUS_ALIVE) ? 1 : 0;
-}
-
-static inline int iwl_is_init(struct iwl_priv *priv)
-{
- return (priv->status & STATUS_INIT) ? 1 : 0;
-}
-
-static inline int iwl_is_ready_rf(struct iwl_priv *priv)
-{
-
- if (priv->status & STATUS_RF_KILL_MASK)
- return 0;
-
- return iwl_is_ready(priv);
-}
-
-/*************** HOST COMMAND QUEUE FUNCTIONS *****/
-
-#define IWL_CMD(x) case x : return #x
-
-static const char *get_cmd_string(u8 cmd)
-{
- switch (cmd) {
- IWL_CMD(SCAN_START_NOTIFICATION);
- IWL_CMD(SCAN_RESULTS_NOTIFICATION);
- IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
- IWL_CMD(STATISTICS_NOTIFICATION);
- IWL_CMD(REPLY_ALIVE);
- IWL_CMD(REPLY_ERROR);
- IWL_CMD(REPLY_RXON_ASSOC);
- IWL_CMD(REPLY_RXON);
- IWL_CMD(REPLY_QOS_PARAM);
- IWL_CMD(REPLY_RXON_TIMING);
- IWL_CMD(REPLY_ADD_STA);
- IWL_CMD(REPLY_TX);
- IWL_CMD(REPLY_BCON);
- IWL_CMD(REPLY_RATE_SCALE);
- IWL_CMD(REPLY_LEDS_CMD);
- IWL_CMD(REPLY_SCAN_ABORT_CMD);
- IWL_CMD(REPLY_TX_BEACON);
- IWL_CMD(REPLY_BT_CONFIG);
- IWL_CMD(REPLY_SCAN_CMD);
- IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
- IWL_CMD(REPLY_STATISTICS_CMD);
- IWL_CMD(REPLY_CARD_STATE_CMD);
- IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
-#if IWL == 3945
- IWL_CMD(REPLY_3945_RX);
-#elif IWL == 4965
- IWL_CMD(MISSED_BEACONS_NOTIFICATION_TH_CMD);
- IWL_CMD(REPLY_CT_KILL_CONFIG_CMD);
- IWL_CMD(SENSITIVITY_CMD);
- IWL_CMD(REPLY_RX_MPDU_CMD);
- IWL_CMD(REPLY_RX_PHY_CMD);
- IWL_CMD(REPLY_4965_RX);
-#endif
- case POWER_TABLE_CMD:
- return "POWER_TABLE_CMD";
- default:
- return "UNKNOWN";
-
- }
-}
-
-#define HOST_COMPLETE_TIMEOUT (HZ / 2)
-
-static inline int is_cmd_sync(struct iwl_host_cmd *cmd)
-{
- return !(cmd->meta.flags & CMD_ASYNC);
-}
-
-static inline int is_cmd_small(struct iwl_host_cmd *cmd)
-{
- return !(cmd->meta.flags & CMD_SIZE_HUGE);
-}
-
-static inline int cmd_needs_lock(struct iwl_host_cmd *cmd)
-{
- return !(cmd->meta.flags & CMD_NO_LOCK);
-}
-
-static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
-{
- struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
- struct iwl_queue *q = &txq->q;
- u8 *tfd;
- u32 *control_flags;
- struct iwl_cmd *out_cmd;
- u32 idx = 0;
- u16 fix_size = (u16) (cmd->meta.len + sizeof(out_cmd->hdr));
- dma_addr_t phys_addr;
-#if IWL == 3945
- int pad;
- u16 count;
-#elif IWL == 4965
- int rc;
-#endif
-
- /* If any of the command structures end up being larger than
- * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
- * we will need to increase the size of the TFD entries */
- BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE)
- && is_cmd_small(cmd));
- if (iwl_queue_space(q) < (is_cmd_sync(cmd) ? 1 : 2)) {
- IWL_ERROR("No space for Tx\n");
- return -ENOSPC;
- }
- tfd = &txq->bd[q->first_empty * q->element_size];
- memset(tfd, 0, q->element_size);
-
- control_flags = (u32 *) tfd;
-
- idx = get_next_cmd_index(q, q->first_empty,
- cmd->meta.flags & CMD_SIZE_HUGE);
- out_cmd = &txq->cmd[idx];
-
- out_cmd->hdr.cmd = cmd->id;
- memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta));
- memcpy(&out_cmd->cmd.payload, cmd->data, cmd->meta.len);
-
- /* At this point, the out_cmd now has all of the incoming cmd
- * information */
-
- out_cmd->hdr.flags = 0;
- out_cmd->hdr.sequence = QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
- INDEX_TO_SEQ(q->first_empty);
- if (out_cmd->meta.flags & CMD_SIZE_HUGE)
- out_cmd->hdr.sequence |= SEQ_HUGE_FRAME;
-
- phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx +
- offsetof(struct iwl_cmd, hdr);
- iwl_hw_tx_queue_attach_buffer_to_tfd(priv, tfd, phys_addr, fix_size);
-
-#if IWL == 3945
- pad = U32_PAD(out_cmd->meta.len);
- count = TFD_CTL_COUNT_GET(*control_flags);
- *control_flags = TFD_CTL_COUNT_SET(count) | TFD_CTL_PAD_SET(pad);
-#endif
-
- IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
- "%d bytes at %d[%d]:%d\n",
- get_cmd_string(out_cmd->hdr.cmd),
- out_cmd->hdr.cmd, out_cmd->hdr.sequence,
- fix_size, q->first_empty, idx, IWL_CMD_QUEUE_NUM);
-
- txq->need_update = 1;
-#if IWL == 4965
- rc = iwl4965_tx_queue_update_wr_ptr(priv, txq, 0);
- q->first_empty = iwl_queue_inc_wrap(q->first_empty, q->n_bd);
- iwl_tx_queue_update_write_ptr(priv, txq);
- return rc;
-#elif IWL == 3945
- q->first_empty = iwl_queue_inc_wrap(q->first_empty, q->n_bd);
-
- return iwl_tx_queue_update_write_ptr(priv, txq);
-#endif
-}
-
-int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
-{
- int rc;
- unsigned long flags = 0;
-
- /* If this is an asynchronous command, and we are in a shutdown
- * process then don't let it start */
- if (!is_cmd_sync(cmd) && (priv->status & STATUS_EXIT_PENDING))
- return -EBUSY;
-
- /*
- * The following checks are meant to catch programming API misuse
- * and not run-time failures due to timing, resource constraint, etc.
- */
-
- /* A command can not be asynchronous AND expect an SKB to be set */
- if ((cmd->meta.flags & CMD_ASYNC) && (cmd->meta.flags & CMD_WANT_SKB)) {
- IWL_ERROR("ASYNC && WANT_SKB\n");
- return -EINVAL;
- }
-
- /* The skb/callback union must be NULL if an SKB is requested */
- if (cmd->meta.u.skb && (cmd->meta.flags & CMD_WANT_SKB)) {
- IWL_ERROR("skb != null && WANT_SKB\n");
- return -EINVAL;
- }
-
- /* A command can not be synchronous AND have a callback set */
- if (is_cmd_sync(cmd) && cmd->meta.u.callback) {
- IWL_ERROR("callback != null && SYNC\n");
- return -EINVAL;
- }
-
- /* An asynchronous command MUST have a callback */
- if ((cmd->meta.flags & CMD_ASYNC) && !cmd->meta.u.callback) {
- IWL_ERROR("callback == null && ASYNC\n");
- return -EINVAL;
- }
-
- /* A command can not be synchronous AND not use locks */
- if (is_cmd_sync(cmd) && (cmd->meta.flags & CMD_NO_LOCK)) {
- IWL_ERROR("SYNC && NO_LOCK\n");
- return -EINVAL;
- }
-
- if (cmd_needs_lock(cmd))
- spin_lock_irqsave(&priv->lock, flags);
-
- if (is_cmd_sync(cmd) && (priv->status & STATUS_HCMD_ACTIVE)) {
- IWL_ERROR("Error sending %s: "
- "Already sending a host command\n",
- get_cmd_string(cmd->id));
- if (cmd_needs_lock(cmd))
- spin_unlock_irqrestore(&priv->lock, flags);
- return -EBUSY;
- }
-
- if (is_cmd_sync(cmd))
- priv->status |= STATUS_HCMD_ACTIVE;
-
- /* When the SKB is provided in the tasklet, it needs
- * a backpointer to the originating caller so it can
- * actually copy the skb there */
- if (cmd->meta.flags & CMD_WANT_SKB) {
- cmd->meta.source = &cmd->meta;
- cmd->meta.magic = CMD_VAR_MAGIC;
- }
-
- cmd->meta.len = cmd->len;
-
- rc = iwl_enqueue_hcmd(priv, cmd);
- if (rc) {
- if (is_cmd_sync(cmd))
- priv->status &= ~STATUS_HCMD_ACTIVE;
- if (cmd_needs_lock(cmd))
- spin_unlock_irqrestore(&priv->lock, flags);
-
- IWL_ERROR("Error sending %s: "
- "iwl_queue_tx_hcmd failed: %d\n",
- get_cmd_string(cmd->id), rc);
-
- return -ENOSPC;
- }
- if (cmd_needs_lock(cmd))
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (is_cmd_sync(cmd)) {
- rc = wait_event_interruptible_timeout(priv->wait_command_queue,
- !(priv->status &
- STATUS_HCMD_ACTIVE),
- HOST_COMPLETE_TIMEOUT);
- if (rc == 0) {
- if (cmd_needs_lock(cmd))
- spin_lock_irqsave(&priv->lock, flags);
-
- if (priv->status & STATUS_HCMD_ACTIVE) {
- IWL_ERROR("Error sending %s: "
- "time out after %dms.\n",
- get_cmd_string(cmd->id),
- jiffies_to_msecs
- (HOST_COMPLETE_TIMEOUT));
- priv->status &= ~STATUS_HCMD_ACTIVE;
- if ((cmd->meta.flags & CMD_WANT_SKB)
- && cmd->meta.u.skb) {
- dev_kfree_skb_any(cmd->meta.u.skb);
- cmd->meta.u.skb = NULL;
- }
-
- if (cmd_needs_lock(cmd))
- spin_unlock_irqrestore(
- &priv->lock, flags);
- cmd->meta.magic = 0;
- return -ETIMEDOUT;
- }
-
- if (cmd_needs_lock(cmd))
- spin_unlock_irqrestore(&priv->lock, flags);
- }
- }
-
- if (priv->status & STATUS_RF_KILL_HW) {
- if ((cmd->meta.flags & CMD_WANT_SKB)
- && cmd->meta.u.skb) {
- dev_kfree_skb_any(cmd->meta.u.skb);
- cmd->meta.u.skb = NULL;
- }
-
- IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
- get_cmd_string(cmd->id));
-
- return -ECANCELED;
- }
-
- if (priv->status & STATUS_FW_ERROR) {
- if ((cmd->meta.flags & CMD_WANT_SKB)
- && cmd->meta.u.skb) {
- dev_kfree_skb_any(cmd->meta.u.skb);
- cmd->meta.u.skb = NULL;
- }
-
- IWL_DEBUG_INFO("Command %s failed: FW Error\n",
- get_cmd_string(cmd->id));
-
- return -EIO;
- }
-
- if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) {
- IWL_ERROR("Error: Response NULL in '%s'\n",
- get_cmd_string(cmd->id));
- return -EIO;
- }
-
- return 0;
-}
-
-int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len, const void *data)
-{
- struct iwl_host_cmd cmd = {
- .id = id,
- .len = len,
- .data = data,
- };
-
- return iwl_send_cmd(priv, &cmd);
-}
-
-static int __must_check iwl_send_cmd_u32(struct iwl_priv *priv, u8 id, u32 val)
-{
- struct iwl_host_cmd cmd = {
- .id = id,
- .len = sizeof(val),
- .data = &val,
- };
-
- return iwl_send_cmd(priv, &cmd);
-}
-
-int iwl_send_statistics_request(struct iwl_priv *priv)
-{
- return iwl_send_cmd_u32(priv, REPLY_STATISTICS_CMD, 0);
-}
-
-/**
- * iwl_rxon_add_station - add station into station table.
- *
- * there is only one AP station with id= IWL_AP_ID
- * NOTE: mutex must be held before calling the this fnction
-*/
-static int iwl_rxon_add_station(struct iwl_priv *priv,
- const u8 * addr, int is_ap)
-{
- u8 i;
-
- /* Remove this station if it happens to already exist */
- iwl_remove_station(priv, addr, is_ap);
-
- i = iwl_add_station(priv, addr, is_ap, 0);
-
- iwl4965_add_station(priv, addr, is_ap);
-
- return i;
-}
-
-/**
- * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON
- * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
- * @channel: Any channel valid for the requested phymode
-
- * In addition to setting the staging RXON, priv->phymode is also set.
- *
- * NOTE: Does not commit to the hardware; it sets appropriate bit fields
- * in the staging RXON flag structure based on the phymode
- */
-static int iwl_set_rxon_channel(struct iwl_priv *priv, u8 phymode, u8 channel)
-{
- if (!iwl_get_channel_info(priv, phymode, channel)) {
- IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
- channel, phymode);
- return -EINVAL;
- }
-
- if ((priv->staging_rxon.channel == channel) &&
- (priv->phymode == phymode))
- return 0;
-
- priv->staging_rxon.channel = channel;
- if ((phymode == MODE_IEEE80211A) ||
- (phymode == MODE_ATHEROS_TURBO))
- priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
- else
- priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
-
- priv->phymode = phymode;
-
- IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, phymode);
-
- return 0;
-}
-
-/**
- * iwl_check_rxon_cmd - validate RXON structure is valid
- *
- * NOTE: This is really only useful during development and can eventually
- * be #ifdef'd out once the driver is stable and folks aren't actively
- * making changes
- */
-static int iwl_check_rxon_cmd(struct iwl_rxon_cmd *rxon)
-{
- int error = 0;
- int counter = 1;
-
- if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
- error |= (rxon->flags & RXON_FLG_TGJ_NARROW_BAND_MSK);
- error |= (rxon->flags & RXON_FLG_RADAR_DETECT_MSK);
- if (error)
- IWL_WARNING("check 24G fields %d | %d\n",
- counter++, error);
- } else {
- error |= ((rxon->flags & RXON_FLG_SHORT_SLOT_MSK) !=
- RXON_FLG_SHORT_SLOT_MSK);
- if (error)
- IWL_WARNING("check 52 fields %d | %d\n",
- counter++, error);
- error |= (rxon->flags & RXON_FLG_CCK_MSK);
- if (error)
- IWL_WARNING("check 52 CCK %d | %d\n",
- counter++, error);
-
- }
- error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
- if (error)
- IWL_WARNING("check mac addr %d | %d\n", counter++, error);
-
- /* make sure basic rates 6Mbps and 1Mbps are supported */
- error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
- ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
- if (error)
- IWL_WARNING("check basic rate %d | %d\n", counter++, error);
-
- error |= (rxon->assoc_id > 2007);
- if (error)
- IWL_WARNING("check assoc id %d | %d\n", counter++, error);
-
- error |= ((rxon->flags &
- (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) ==
- (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
- if (error)
- IWL_WARNING("check CCK and short slot %d | %d\n",
- counter++, error);
-
- error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
- == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
- if (error)
- IWL_WARNING("check CCK & auto detect %d | %d\n",
- counter++, error);
-
- error |= ((rxon->flags &
- (RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK)) ==
- RXON_FLG_TGG_PROTECT_MSK);
- if (error)
- IWL_WARNING("check TGG %d | %d\n", counter++, error);
-
-#if IWL == 3945
- if ((rxon->flags & RXON_FLG_DIS_DIV_MSK))
- error |= ((rxon->flags &
- (RXON_FLG_ANT_B_MSK | RXON_FLG_ANT_A_MSK)) == 0);
- if (error)
- IWL_WARNING("check antenna %d %d\n", counter++, error);
-#endif
-
- if (error)
- IWL_WARNING("Tuning to channel %d\n",
- le16_to_cpu(rxon->channel));
-
- if (error) {
- IWL_ERROR
- ("Error not a valid iwl_rxon_assoc_cmd field values\n");
- return -1;
- }
-
- return 0;
-}
-
-/**
- * iwl_full_rxon_required - determine if RXON_ASSOC can be used in RXON commit
- * @priv: staging_rxon is comapred to active_rxon
- *
- * If the RXON structure is changing sufficient to require a new
- * tune or to clear and reset the RXON_FILTER_ASSOC_MSK then return 1
- * to indicate a new tune is required.
- */
-static int iwl_full_rxon_required(struct iwl_priv *priv)
-{
-
- /* These items are only settable from the full RXON command */
- if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ||
- compare_ether_addr(priv->staging_rxon.bssid_addr,
- priv->active_rxon.bssid_addr) ||
- compare_ether_addr(priv->staging_rxon.node_addr,
- priv->active_rxon.node_addr) ||
- compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
- priv->active_rxon.wlap_bssid_addr) ||
- (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
- (priv->staging_rxon.channel != priv->active_rxon.channel) ||
- (priv->staging_rxon.air_propagation !=
- priv->active_rxon.air_propagation) ||
-#if IWL == 4965
- (priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
- priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
- (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
- priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
- (priv->staging_rxon.rx_chain != priv->active_rxon.rx_chain) ||
-#endif
- (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
- return 1;
-
- /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
- * be updated with the RXON_ASSOC command -- however only some
- * flag transitions are allowed using RXON_ASSOC */
-
- /* Check if we are not switching bands */
- if (iwl_check_bits(priv->staging_rxon.flags, RXON_FLG_BAND_24G_MSK) !=
- iwl_check_bits(priv->active_rxon.flags, RXON_FLG_BAND_24G_MSK))
- return 1;
-
- /* Check if we are switching association toggle */
- if (iwl_check_bits(priv->staging_rxon.filter_flags,
- RXON_FILTER_ASSOC_MSK) !=
- iwl_check_bits(priv->active_rxon.filter_flags,
- RXON_FILTER_ASSOC_MSK))
- return 1;
-
- return 0;
-}
-
-static int iwl_send_rxon_assoc(struct iwl_priv *priv)
-{
- int rc = 0;
- struct iwl_rx_packet *res = NULL;
- struct iwl_rxon_assoc_cmd rxon_assoc;
- struct iwl_host_cmd cmd = {
- .id = REPLY_RXON_ASSOC,
- .len = sizeof(rxon_assoc),
- .meta.flags = CMD_WANT_SKB,
- .data = &rxon_assoc,
- };
- const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon;
- const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon;
-
- if ((rxon1->flags == rxon2->flags) &&
- (rxon1->filter_flags == rxon2->filter_flags) &&
- (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
-#if IWL == 4965
- (rxon1->ofdm_ht_single_stream_basic_rates ==
- rxon2->ofdm_ht_single_stream_basic_rates) &&
- (rxon1->ofdm_ht_dual_stream_basic_rates ==
- rxon2->ofdm_ht_dual_stream_basic_rates) &&
- (rxon1->rx_chain == rxon2->rx_chain) &&
-#endif
- (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
- IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
- return 0;
- }
-
- rxon_assoc.flags = priv->staging_rxon.flags;
- rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
- rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
- rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
- rxon_assoc.reserved = 0;
-#if IWL == 4965
- rxon_assoc.ofdm_ht_single_stream_basic_rates =
- priv->staging_rxon.ofdm_ht_single_stream_basic_rates;
- rxon_assoc.ofdm_ht_dual_stream_basic_rates =
- priv->staging_rxon.ofdm_ht_dual_stream_basic_rates;
- rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain;
-#endif
-
- rc = iwl_send_cmd(priv, &cmd);
- if (rc)
- return rc;
-
- res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
- rc = -EIO;
- }
-
- priv->alloc_rxb_skb--;
- dev_kfree_skb_any(cmd.meta.u.skb);
-
- return rc;
-}
-
-/**
- * iwl_commit_rxon - commit staging_rxon to hardware
- *
- * The RXON command in staging_rxon is commited to the hardware and
- * the active_rxon structure is updated with the new data. This
- * function correctly transitions out of the RXON_ASSOC_MSK state if
- * a HW tune is required based on the RXON structure changes.
- */
-static int iwl_commit_rxon(struct iwl_priv *priv)
-{
- /* cast away the const for active_rxon in this function */
- struct iwl_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
- int rc = 0;
-
- if (!iwl_is_alive(priv))
- return -1;
-
- /* always get timestamp with Rx frame */
- priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
-
-#if IWL == 3945
- /* select antenna */
- priv->staging_rxon.flags &=
- ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
- priv->staging_rxon.flags |= iwl3945_get_antenna_flags(priv);
-#endif
-
- rc = iwl_check_rxon_cmd(&priv->staging_rxon);
- if (rc) {
- IWL_ERROR("Invalid RXON configuration. Not committing.\n");
- return -EINVAL;
- }
-
- /* If we don't need to send a full RXON, we can use
- * iwl_rxon_assoc_cmd which is used to reconfigure filter
- * and other flags for the current radio configuration. */
- if (!iwl_full_rxon_required(priv)) {
- rc = iwl_send_rxon_assoc(priv);
- if (rc) {
- IWL_ERROR("Error setting RXON_ASSOC "
- "configuration (%d).\n", rc);
- return rc;
- }
-
- memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
-
- return 0;
- }
-
- /* station table will be caleared */
- priv->assoc_station_added = 0;
-#if IWL == 4965
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
- priv->sensitivity_data.state = IWL_SENS_CALIB_NEED_REINIT;
- if (!priv->error_recovering)
- priv->start_calib = 0;
-
- iwl4965_init_sensitivity(priv, CMD_ASYNC, 1);
-#endif /* CONFIG_IWLWIFI_SENSITIVITY */
-#endif /* IWL == 4965 */
-
- /* If we are currently associated and the new config requires
- * an RXON_ASSOC and the new config wants the associated mask enabled,
- * we must clear the associated from the active configuration
- * before we apply the new config */
- if (iwl_is_associated(priv) &&
- (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) {
- IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
- active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-
- rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
- sizeof(struct iwl_rxon_cmd),
- &priv->active_rxon);
-
- /* If the mask clearing failed then we set
- * active_rxon back to what it was previously */
- if (rc) {
- active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
- IWL_ERROR("Error clearing ASSOC_MSK on current "
- "configuration (%d).\n", rc);
- return rc;
- }
-
- /* The RXON bit toggling will have cleared out the
- * station table in the uCode, so blank it in the driver
- * as well */
- iwl_clear_stations_table(priv);
- } else if (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) {
- /* When switching from non-associated to associated, the
- * uCode clears out the station table; so clear it in the
- * driver as well */
- iwl_clear_stations_table(priv);
- }
-
- IWL_DEBUG_INFO("Sending RXON\n"
- "* with%s RXON_FILTER_ASSOC_MSK\n"
- "* channel = %d\n"
- "* bssid = " MAC_FMT "\n",
- ((priv->staging_rxon.filter_flags &
- RXON_FILTER_ASSOC_MSK) ? "" : "out"),
- priv->staging_rxon.channel,
- MAC_ARG(priv->staging_rxon.bssid_addr));
-
- /* Apply the new configuration */
- rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
- sizeof(struct iwl_rxon_cmd), &priv->staging_rxon);
- if (rc) {
- IWL_ERROR("Error setting new configuration (%d).\n", rc);
- return rc;
- }
-
-#if IWL == 4965
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
- if (!priv->error_recovering)
- priv->start_calib = 0;
-
- priv->sensitivity_data.state = IWL_SENS_CALIB_NEED_REINIT;
- iwl4965_init_sensitivity(priv, CMD_ASYNC, 1);
-#endif /* CONFIG_IWLWIFI_SENSITIVITY */
-#endif /* IWL == 4965 */
-
- memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
-
- /* If we issue a new RXON command which required a tune then we must
- * send a new TXPOWER command or we won't be able to Tx any frames */
- rc = iwl_hw_reg_send_txpower(priv);
- if (rc) {
- IWL_ERROR("Error setting Tx power (%d).\n", rc);
- return rc;
- }
-
- /* Add the broadcast address so we can send broadcast frames */
- if (iwl_rxon_add_station(priv, BROADCAST_ADDR, 0) ==
- IWL_INVALID_STATION) {
- IWL_ERROR("Error adding BROADCAST address for transmit.\n");
- return -EIO;
- }
-
- /* If we have set the ASSOC_MSK and we are in BSS mode then
- * add the IWL_AP_ID to the station rate table */
- if (iwl_is_associated(priv) &&
- (priv->iw_mode == IEEE80211_IF_TYPE_STA)) {
- if (iwl_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1)
- == IWL_INVALID_STATION) {
- IWL_ERROR("Error adding AP address for transmit.\n");
- return -EIO;
- }
- priv->assoc_station_added = 1;
- }
-
- /* Init the hardware's rate fallback order based on the
- * phymode */
- rc = iwl3945_init_hw_rate_table(priv);
- if (rc) {
- IWL_ERROR("Error setting HW rate table: %02X\n", rc);
- return -EIO;
- }
-
- return 0;
-}
-
-static int iwl_send_bt_config(struct iwl_priv *priv)
-{
- struct iwl_bt_cmd bt_cmd = {
- .flags = 3,
- .lead_time = 0xAA,
- .max_kill = 1,
- .kill_ack_mask = 0,
- .kill_cts_mask = 0,
- };
-
- return iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
- sizeof(struct iwl_bt_cmd), &bt_cmd);
-}
-
-static int iwl_send_scan_abort(struct iwl_priv *priv)
-{
- int rc = 0;
- struct iwl_rx_packet *res;
- struct iwl_host_cmd cmd = {
- .id = REPLY_SCAN_ABORT_CMD,
- .meta.flags = CMD_WANT_SKB,
- };
-
- /* If there isn't a scan actively going on in the hardware
- * then we are in between scan bands and not actually
- * actively scanning, so don't send the abort command */
- if (!(priv->status & STATUS_SCAN_HW)) {
- priv->status &= ~STATUS_SCAN_ABORTING;
- return 0;
- }
-
- rc = iwl_send_cmd(priv, &cmd);
- if (rc) {
- priv->status &= ~STATUS_SCAN_ABORTING;
- return rc;
- }
-
- res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
- if (res->u.status != CAN_ABORT_STATUS) {
- /* The scan abort will return 1 for success or
- * 2 for "failure". A failure condition can be
- * due to simply not being in an active scan which
- * can occur if we send the scan abort before we
- * the microcode has notified us that a scan is
- * completed. */
- IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
- priv->status &= ~(STATUS_SCAN_ABORTING | STATUS_SCAN_HW);
- }
-
- dev_kfree_skb_any(cmd.meta.u.skb);
-
- return rc;
-}
-
-static int iwl_card_state_sync_callback(struct iwl_priv *priv,
- struct iwl_cmd *cmd,
- struct sk_buff *skb)
-{
- return 1;
-}
-
-/*
- * CARD_STATE_CMD
- *
- * Use: Sets the internal card state to enable, disable, or halt
- *
- * When in the 'enable' state the card operates as normal.
- * When in the 'disable' state, the card enters into a low power mode.
- * When in the 'halt' state, the card is shut down and must be fully
- * restarted to come back on.
- */
-static int iwl_send_card_state(struct iwl_priv *priv, u32 flags, u8 meta_flag)
-{
- struct iwl_host_cmd cmd = {
- .id = REPLY_CARD_STATE_CMD,
- .len = sizeof(u32),
- .data = &flags,
- .meta.flags = meta_flag,
- };
-
- if (meta_flag & CMD_ASYNC)
- cmd.meta.u.callback = iwl_card_state_sync_callback;
-
- return iwl_send_cmd(priv, &cmd);
-}
-
-static int iwl_add_sta_sync_callback(struct iwl_priv *priv,
- struct iwl_cmd *cmd, struct sk_buff *skb)
-{
- struct iwl_rx_packet *res = NULL;
-
- if (!skb) {
- IWL_ERROR("Error: Response NULL in " "REPLY_ADD_STA.\n");
- return 1;
- }
-
- res = (struct iwl_rx_packet *)skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
- res->hdr.flags);
- return 1;
- }
-
- switch (res->u.add_sta.status) {
- case ADD_STA_SUCCESS_MSK:
- break;
- default:
- break;
- }
-
- /* We didn't cache the SKB; let the caller free it */
- return 1;
-}
-
-int iwl_send_add_station(struct iwl_priv *priv,
- struct iwl_addsta_cmd *sta, u8 flags)
-{
- struct iwl_rx_packet *res = NULL;
- int rc = 0;
- struct iwl_host_cmd cmd = {
- .id = REPLY_ADD_STA,
- .len = sizeof(struct iwl_addsta_cmd),
- .meta.flags = flags,
- .data = sta,
- };
-
- if (flags & CMD_ASYNC)
- cmd.meta.u.callback = iwl_add_sta_sync_callback;
- else
- cmd.meta.flags |= CMD_WANT_SKB;
-
- rc = iwl_send_cmd(priv, &cmd);
-
- if (rc || (flags & CMD_ASYNC))
- return rc;
-
- res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
- res->hdr.flags);
- rc = -EIO;
- }
-
- if (rc == 0) {
- switch (res->u.add_sta.status) {
- case ADD_STA_SUCCESS_MSK:
- IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
- break;
- default:
- rc = -EIO;
- IWL_WARNING("REPLY_ADD_STA failed\n");
- break;
- }
- }
-
- priv->alloc_rxb_skb--;
- dev_kfree_skb_any(cmd.meta.u.skb);
-
- return rc;
-}
-
-static int iwl_update_sta_key_info(struct iwl_priv *priv,
- struct ieee80211_key_conf *keyconf,
- u8 sta_id)
-{
- unsigned long flags;
- u16 key_flags = 0;
-
- switch (keyconf->alg) {
- case ALG_CCMP:
- key_flags |= STA_KEY_FLG_CCMP;
- key_flags |= keyconf->keyidx << STA_KEY_FLG_KEYID_POS;
- key_flags &= ~STA_KEY_FLG_INVALID;
- break;
- case ALG_TKIP:
- case ALG_WEP:
- return -EINVAL;
- default:
- return -EINVAL;
- }
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].keyinfo.alg = keyconf->alg;
- priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
- memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
- keyconf->keylen);
-
- memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
- keyconf->keylen);
- priv->stations[sta_id].sta.key.key_flags = key_flags;
- priv->stations[sta_id].sta.sta.modify_mask |= STA_MODIFY_KEY_MASK;
- priv->stations[sta_id].sta.mode |= STA_CONTROL_MODIFY_MSK;
-
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
- iwl_send_add_station(priv, &priv->stations[sta_id].sta, 0);
- return 0;
-}
-
-static void iwl_clear_free_frames(struct iwl_priv *priv)
-{
- struct list_head *element;
-
- IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
- priv->frames_count);
-
- while (!list_empty(&priv->free_frames)) {
- element = priv->free_frames.next;
- list_del(element);
- kfree(list_entry(element, struct iwl_frame, list));
- priv->frames_count--;
- }
-
- if (priv->frames_count) {
- IWL_WARNING("%d frames still in use. Did we lose one?\n",
- priv->frames_count);
- priv->frames_count = 0;
- }
-}
-
-static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
-{
- struct iwl_frame *frame;
- struct list_head *element;
- if (list_empty(&priv->free_frames)) {
- frame = kzalloc(sizeof(*frame), GFP_ATOMIC);
- if (!frame) {
- IWL_ERROR("Could not allocate frame!\n");
- return NULL;
- }
-
- priv->frames_count++;
- return frame;
- }
-
- element = priv->free_frames.next;
- list_del(element);
- return list_entry(element, struct iwl_frame, list);
-}
-
-static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
-{
- memset(frame, 0, sizeof(*frame));
- list_add(&frame->list, &priv->free_frames);
-}
-
-int iwl_fill_beacon_frame(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr, const u8 * dest, int left)
-{
-
- if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
- ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) &&
- (priv->iw_mode != IEEE80211_IF_TYPE_AP)))
- return 0;
-
- if (priv->ibss_beacon->len > left)
- return 0;
-
- memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
-
- return priv->ibss_beacon->len;
-}
-
-static int iwl_send_beacon_cmd(struct iwl_priv *priv)
-{
- struct iwl_frame *frame;
- int frame_size, rc;
- u16 rate;
-
- frame = iwl_get_free_frame(priv);
-
- if (!frame) {
- IWL_ERROR("Coult not obtain free frame buffer for beacon "
- "command.\n");
- return -ENOMEM;
- }
-
- if (!(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)) {
- rate = iwl_rate_get_lowest_plcp(priv->active_rate_basic &
- 0xFF0);
- if (rate <= 0)
- rate = IWL_RATE_6M_PLCP;
- } else {
- rate = iwl_rate_get_lowest_plcp(priv->active_rate_basic & 0xF);
- if (rate <= 0)
- rate = IWL_RATE_1M_PLCP;
- }
-
- frame_size = iwl_hw_get_beacon_cmd(priv, frame, rate);
-
- rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
- &frame->u.cmd[0]);
-
- iwl_free_frame(priv, frame);
-
- return rc;
-}
-
-/******************************************************************************
- *
- * EEPROM related functions
- *
- ******************************************************************************/
-
-static void get_eeprom_mac(struct iwl_priv *priv, u8 * mac)
-{
- memcpy(mac, priv->eeprom.mac_address, 6);
-}
-
-/**
- * iwl_eeprom_init - read EEPROM contents
- *
- * Load the EEPROM from adapter into priv->eeprom
- *
- * NOTE: This routine uses the non-debug IO access functions.
- */
-int iwl_eeprom_init(struct iwl_priv *priv)
-{
- u16 *e = (u16 *) & priv->eeprom;
- u32 r;
- int to;
- u32 gp = iwl_read32(priv, CSR_EEPROM_GP);
- u16 sz = sizeof(priv->eeprom);
- int rc;
- u16 addr;
-
- /* The EEPROM structure has several padding buffers within it
- * and when adding new EEPROM maps is subject to programmer errors
- * which may be very difficult to identify without explicitly
- * checking the resulting size of the eeprom map. */
- BUILD_BUG_ON(sizeof(priv->eeprom) != IWL_EEPROM_IMAGE_SIZE);
-
- if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) {
- IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp);
- return -ENOENT;
- }
-#if IWL == 3945
- _iwl_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_OWNER);
-#endif
-
- for (addr = 0, r = 0; addr < sz; addr += 2) {
- _iwl_write32(priv, CSR_EEPROM_REG, addr << 1);
- _iwl_clear_bit(priv, CSR_EEPROM_REG, 0x00000002);
- rc = _iwl_grab_restricted_access(priv);
- if (rc)
- return rc;
-
- for (to = 0; to < 10; to++) {
- r = _iwl_read_restricted(priv, CSR_EEPROM_REG);
- if (r & 1)
- break;
- udelay(5);
- }
-
- _iwl_release_restricted_access(priv);
-
- if (!(r & 1)) {
- IWL_ERROR("Time out reading EEPROM[%d]", addr);
- return -ETIMEDOUT;
- }
-
- e[addr / 2] = le16_to_cpu(r >> 16);
- }
-
- return 0;
-}
-
-/******************************************************************************
- *
- * Misc. internal state and helper functions
- *
- ******************************************************************************/
-#ifdef CONFIG_IWLWIFI_DEBUG
-
-/**
- * iwl_report_frame - dump frame to syslog during debug sessions
- *
- * hack this function to show different aspects of received frames,
- * including selective frame dumps.
- * group100 parameter selects whether to show 1 out of 100 good frames.
- *
- * TODO: ieee80211_hdr stuff is common to 3945 and 4965, so frame type
- * info output is okay, but some of this stuff (e.g. iwl_rx_frame_stats)
- * is 3945-specific and gives bad output for 4965. Need to split the
- * functionality, keep common stuff here.
- */
-void iwl_report_frame(struct iwl_priv *priv,
- struct iwl_rx_packet *pkt,
- struct ieee80211_hdr *header, int group100)
-{
- u32 to_us;
- u32 print_summary = 0;
- u32 print_dump = 0; /* set to 1 to dump all frames' contents */
- u32 hundred = 0;
- u32 dataframe = 0;
-
- /* these are declared without "=" to avoid compiler warnings if we
- * don't use them in the debug messages below */
- u16 frame_ctl;
- u16 seq_ctl;
- u16 channel;
- u16 phy_flags;
- int rate_sym;
- u16 length;
- u16 status;
- u16 bcn_tmr;
- u32 tsf_low;
- u64 tsf;
- u8 rssi;
- u8 agc;
- u16 sig_avg;
- u16 noise_diff;
-
- struct iwl_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
- struct iwl_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
- struct iwl_rx_frame_end *rx_end = IWL_RX_END(pkt);
- u8 *data = IWL_RX_DATA(pkt);
-
- /* MAC header */
- frame_ctl = le16_to_cpu(header->frame_control);
- seq_ctl = le16_to_cpu(header->seq_ctrl);
-
- /* metadata */
- channel = le16_to_cpu(rx_hdr->channel);
- phy_flags = le16_to_cpu(rx_hdr->phy_flags);
- rate_sym = rx_hdr->rate;
- length = le16_to_cpu(rx_hdr->len);
-
- /* end-of-frame status and timestamp */
- status = le32_to_cpu(rx_end->status);
- bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp);
- tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff;
- tsf = le64_to_cpu(rx_end->timestamp);
-
- /* signal statistics */
- rssi = rx_stats->rssi;
- agc = rx_stats->agc;
- sig_avg = le16_to_cpu(rx_stats->sig_avg);
- noise_diff = le16_to_cpu(rx_stats->noise_diff);
-
- to_us = !compare_ether_addr(header->addr1, priv->mac_addr);
-
- /* if data frame is to us and all is good,
- * (optionally) print summary for only 1 out of every 100 */
- if (to_us && (frame_ctl & ~IEEE80211_FCTL_PROTECTED) ==
- (IEEE80211_FCTL_FROMDS | IEEE80211_FTYPE_DATA)) {
- dataframe = 1;
- if (!group100) {
- print_summary = 1; /* print each frame */
- } else if (priv->framecnt_to_us < 100) {
- priv->framecnt_to_us++;
- print_summary = 0;
- } else {
- priv->framecnt_to_us = 0;
- print_summary = 1;
- hundred = 1;
- }
- } else {
- /* print summary for all other frames */
- print_summary = 1;
- }
-
- if (print_summary) {
- char *title;
- u32 rate;
-
- if (hundred)
- title = "100Frames";
- else if (frame_ctl & IEEE80211_FCTL_RETRY)
- title = "Retry";
- else if (ieee80211_is_assoc_response(frame_ctl))
- title = "AscRsp";
- else if (ieee80211_is_reassoc_response(frame_ctl))
- title = "RasRsp";
- else if (ieee80211_is_probe_response(frame_ctl)) {
- title = "PrbRsp";
- print_dump = 1; /* dump frame contents */
- } else if (ieee80211_is_beacon(frame_ctl)) {
- title = "Beacon";
- print_dump = 1; /* dump frame contents */
- } else if (ieee80211_is_atim(frame_ctl))
- title = "ATIM";
- else if (ieee80211_is_auth(frame_ctl))
- title = "Auth";
- else if (ieee80211_is_deauth(frame_ctl))
- title = "DeAuth";
- else if (ieee80211_is_disassoc(frame_ctl))
- title = "DisAssoc";
- else
- title = "Frame";
-
- rate = iwl_rate_index_from_plcp(rate_sym);
- if (rate == -1)
- rate = 0;
- else
- rate = iwl_rates[rate].ieee / 2;
-
- /* print frame summary.
- * MAC addresses show just the last byte (for brevity),
- * but you can hack it to show more, if you'd like to. */
- if (dataframe) {
- IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, "
- "len=%u, rssi=%d, chnl=%d, rate=%u, \n",
- title, frame_ctl, header->addr1[5],
- length, rssi, channel, rate);
- } else {
- /* src/dst addresses assume managed mode */
- IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, "
- "src=0x%02x, rssi=%u, tim=%lu usec, "
- "phy=0x%02x, chnl=%d\n",
- title, frame_ctl, header->addr1[5],
- header->addr3[5], rssi,
- tsf_low - priv->scan_start_tsf,
- phy_flags, channel);
- }
- }
- if (print_dump)
- printk_buf(IWL_DL_RX, data, length);
-}
-#endif
-
-static void iwl_unset_hw_setting(struct iwl_priv *priv)
-{
- if (priv->hw_setting.shared_virt)
- pci_free_consistent(priv->pci_dev,
- sizeof(struct iwl_shared),
- priv->hw_setting.shared_virt,
- priv->hw_setting.shared_phys);
-}
-
-/**
- * iwl_supported_rate_to_ie - fill in the supported rate in IE field
- *
- * return : set the bit for each supported rate insert in ie
- */
-static u16 iwl_supported_rate_to_ie(u8 * ie, u16 supported_rate,
- u16 basic_rate, int max_count)
-{
- u16 ret_rates = 0, bit;
- int i;
- u8 *rates;
-
- rates = &(ie[1]);
-
- for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
- if (bit & supported_rate) {
- ret_rates |= bit;
- rates[*ie] = iwl_rates[i].ieee |
- ((bit & basic_rate) ? 0x80 : 0x00);
- *ie = *ie + 1;
- if (*ie >= max_count)
- break;
- }
- }
-
- return ret_rates;
-}
-
-#if IWL == 4965
-#ifdef CONFIG_IWLWIFI_HT
-void static d_get_ht_capab (struct ieee80211_hw *hw,
- struct ieee80211_ht_capability *ht_cap_param);
-#endif
-#endif
-
-/**
- * iwl_fill_probe_req - fill in all required fields and IE for probe request
- */
-static int iwl_fill_probe_req(struct iwl_priv *priv,
- struct ieee80211_mgmt *frame,
- int left, int is_direct)
-{
- int len = 0;
- u8 *pos = NULL;
- u16 ret_rates;
-
- /* Make sure there is enough space for the probe request,
- * two mandatory IEs and the data */
- left -= 24;
- if (left < 0)
- return 0;
- len += 24;
-
- frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
- memcpy(frame->da, BROADCAST_ADDR, ETH_ALEN);
- memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
- memcpy(frame->bssid, BROADCAST_ADDR, ETH_ALEN);
- frame->seq_ctrl = 0;
-
- /* fill in our indirect SSID IE */
- /* ...next IE... */
-
- left -= 2;
- if (left < 0)
- return 0;
- len += 2;
- pos = &(frame->u.probe_req.variable[0]);
- *pos++ = WLAN_EID_SSID;
- *pos++ = 0;
-
- /* fill in our direct SSID IE... */
- if (is_direct) {
- /* ...next IE... */
- left -= 2 + priv->essid_len;
- if (left < 0)
- return 0;
- /* ... fill it in... */
- *pos++ = WLAN_EID_SSID;
- *pos++ = priv->essid_len;
- memcpy(pos, priv->essid, priv->essid_len);
- pos += priv->essid_len;
- len += 2 + priv->essid_len;
- }
-
- /* fill in supported rate */
- /* ...next IE... */
- left -= 2;
- if (left < 0)
- return 0;
- /* ... fill it in... */
- *pos++ = WLAN_EID_SUPP_RATES;
- *pos = 0;
- ret_rates = priv->active_rate = priv->rates_mask;
- priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
-
- iwl_supported_rate_to_ie(pos, priv->active_rate,
- priv->active_rate_basic, left);
- len += 2 + *pos;
- pos += (*pos) + 1;
- ret_rates = ~ret_rates & priv->active_rate;
-
- if (ret_rates == 0)
- goto fill_end;
-
- /* fill in supported extended rate */
- /* ...next IE... */
- left -= 2;
- if (left < 0)
- return 0;
- /* ... fill it in... */
- *pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos = 0;
- iwl_supported_rate_to_ie(pos, ret_rates, priv->active_rate_basic, left);
- if (*pos > 0)
- len += 2 + *pos;
-#if IWL == 4965
-#ifdef CONFIG_IWLWIFI_HT
- if (is_direct && priv->is_ht_enabled) {
- pos += (*pos) + 1;
- *pos++ = WLAN_EID_HT_CAPABILITY;
- *pos++ = sizeof(struct ieee80211_ht_capability);
- d_get_ht_capab(NULL, (struct ieee80211_ht_capability *)pos);
- len += 2 + sizeof(struct ieee80211_ht_capability);
- }
-#endif /*CONFIG_IWLWIFI_HT */
-#endif
-
- fill_end:
- return len;
-}
-
-/*
- * Power management (not Tx power!) functions
- */
-#define MSEC_TO_USEC 1024
-
-#if IWL == 3945
-#define NOSLP 0
-#define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK
-#elif IWL == 4965
-#define NOSLP 0, 0, 0
-#define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
-#endif
-
-/* default power management (not Tx power) table values */
-/* for tim 0-10 */
-static struct iwl_power_vec_entry range_0[IWL_POWER_AC] = {
- {{NOSLP, 0 * MSEC_TO_USEC, 0 * MSEC_TO_USEC, {0, 0, 0, 0, 0}}, 0},
- {{SLP, 200 * MSEC_TO_USEC, 500 * MSEC_TO_USEC, {1, 2, 3, 4, 4}}, 0},
- {{SLP, 200 * MSEC_TO_USEC, 300 * MSEC_TO_USEC, {2, 4, 6, 7, 7}}, 0},
- {{SLP, 50 * MSEC_TO_USEC, 100 * MSEC_TO_USEC, {2, 6, 9, 9, 10}}, 0},
- {{SLP, 50 * MSEC_TO_USEC, 25 * MSEC_TO_USEC, {2, 7, 9, 9, 10}}, 1},
- {{SLP, 25 * MSEC_TO_USEC, 25 * MSEC_TO_USEC, {4, 7, 10, 10, 10}}, 1}
-};
-
-/* for tim > 10 */
-static struct iwl_power_vec_entry range_1[IWL_POWER_AC] = {
- {{NOSLP, 0 * MSEC_TO_USEC, 0 * MSEC_TO_USEC, {0, 0, 0, 0, 0}}, 0},
- {{SLP, 200 * MSEC_TO_USEC, 500 * MSEC_TO_USEC, {1, 2, 3, 4, 0xFF}}, 0},
- {{SLP, 200 * MSEC_TO_USEC, 300 * MSEC_TO_USEC, {2, 4, 6, 7, 0xFF}}, 0},
- {{SLP, 50 * MSEC_TO_USEC, 100 * MSEC_TO_USEC, {2, 6, 9, 9, 0xFF}}, 0},
- {{SLP, 50 * MSEC_TO_USEC, 25 * MSEC_TO_USEC, {2, 7, 9, 9, 0xFF}}, 0},
- {{SLP, 25 * MSEC_TO_USEC, 25 * MSEC_TO_USEC, {4, 7, 10, 10, 0xFF}}, 0}
-};
-
-int iwl_power_init_handle(struct iwl_priv *priv)
-{
- int rc = 0, i;
- struct iwl_power_mgr *pow_data;
- int size = sizeof(struct iwl_power_vec_entry) * IWL_POWER_AC;
- u16 pci_pm;
-
- IWL_DEBUG_POWER("Initialize power \n");
-
- pow_data = &(priv->power_data);
-
- memset(pow_data, 0, sizeof(*pow_data));
-
- pow_data->active_index = IWL_POWER_RANGE_0;
- pow_data->dtim_val = 0xffff;
-
- memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
- memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
-
- rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm);
- if (rc != 0)
- return 0;
- else {
- struct iwl_powertable_cmd *cmd;
-
- IWL_DEBUG_POWER("adjust power command flags\n");
-
- for (i = 0; i < IWL_POWER_AC; i++) {
- cmd = &pow_data->pwr_range_0[i].cmd;
-
- if (pci_pm & 0x1)
- cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
- else
- cmd->flags |= IWL_POWER_PCI_PM_MSK;
- }
- }
- return rc;
-}
-
-static int iwl_update_power_cmd(struct iwl_priv *priv,
- struct iwl_powertable_cmd *cmd, u32 mode)
-{
- int rc = 0, i;
- u8 skip;
- u32 max_sleep = 0;
- struct iwl_power_vec_entry *range;
- u8 period = 0;
- struct iwl_power_mgr *pow_data;
-
- if (mode > IWL_POWER_INDEX_5) {
- IWL_DEBUG_POWER("Error invalid power mode \n");
- return -1;
- }
- pow_data = &(priv->power_data);
-
- if (pow_data->active_index == IWL_POWER_RANGE_0)
- range = &pow_data->pwr_range_0[0];
- else
- range = &pow_data->pwr_range_1[1];
-
- memcpy(cmd, &range[mode].cmd, sizeof(struct iwl_powertable_cmd));
-
-#ifdef IWL_MAC80211_DISABLE
- if (priv->assoc_network != NULL) {
- unsigned long flags;
-
- period = priv->assoc_network->tim.tim_period;
- }
-#endif /*IWL_MAC80211_DISABLE */
- skip = range[mode].no_dtim;
-
- if (period == 0) {
- period = 1;
- skip = 0;
- }
-
- if (skip == 0) {
- max_sleep = period;
- cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
- } else {
- max_sleep = (cmd->sleep_interval[IWL_POWER_TABLE_SIZE - 1] /
- period) * period;
- cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
- }
-
- for (i = 0; i < IWL_POWER_TABLE_SIZE; i++) {
- if (cmd->sleep_interval[i] > max_sleep)
- cmd->sleep_interval[i] = max_sleep;
- }
-
- IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags);
- IWL_DEBUG_POWER("Tx timeout = %u\n", cmd->tx_data_timeout);
- IWL_DEBUG_POWER("Rx timeout = %u\n", cmd->rx_data_timeout);
- IWL_DEBUG_POWER
- ("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
- cmd->sleep_interval[0], cmd->sleep_interval[1],
- cmd->sleep_interval[2], cmd->sleep_interval[3],
- cmd->sleep_interval[4]);
-
- return rc;
-}
-
-static int iwl_send_power_mode(struct iwl_priv *priv, u32 mode)
-{
- u32 final_mode = mode;
- int rc;
- unsigned long flags;
- struct iwl_powertable_cmd cmd;
-
- /* If on battery, set to 3,
- * if plugged into AC power, set to CAM ("continuosly aware mode"),
- * else user level */
- switch (mode) {
- case IWL_POWER_BATTERY:
- final_mode = IWL_POWER_INDEX_3;
- break;
- case IWL_POWER_AC:
- final_mode = IWL_POWER_MODE_CAM;
- break;
- default:
- final_mode = mode;
- break;
- }
-
-#if IWL == 4965
- cmd.keep_alive_beacons = 0;
-#endif
-
- iwl_update_power_cmd(priv, &cmd, final_mode);
-
- rc = iwl_send_cmd_pdu(priv, POWER_TABLE_CMD, sizeof(cmd), &cmd);
-
- spin_lock_irqsave(&priv->lock, flags);
-
- if (final_mode == IWL_POWER_MODE_CAM) {
- priv->status &= ~STATUS_POWER_PMI;
- } else {
- priv->status |= STATUS_POWER_PMI;
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
-}
-
-int iwl_is_network_packet(struct iwl_priv *priv, struct ieee80211_hdr *header)
-{
- /* Filter incoming packets to determine if they are targeted toward
- * this network, discarding packets coming from ourselves */
- switch (priv->iw_mode) {
- case IEEE80211_IF_TYPE_IBSS: /* Header: Dest. | Source | BSSID */
- /* packets from our adapter are dropped (echo) */
- if (!compare_ether_addr(header->addr2, priv->mac_addr))
- return 0;
- /* {broad,multi}cast packets to our IBSS go through */
- if (is_multicast_ether_addr(header->addr1))
- return !compare_ether_addr(header->addr3, priv->bssid);
- /* packets to our adapter go through */
- return !compare_ether_addr(header->addr1, priv->mac_addr);
- case IEEE80211_IF_TYPE_STA: /* Header: Dest. | AP{BSSID} | Source */
- /* packets from our adapter are dropped (echo) */
- if (!compare_ether_addr(header->addr3, priv->mac_addr))
- return 0;
- /* {broad,multi}cast packets to our BSS go through */
- if (is_multicast_ether_addr(header->addr1))
- return !compare_ether_addr(header->addr2, priv->bssid);
- /* packets to our adapter go through */
- return !compare_ether_addr(header->addr1, priv->mac_addr);
- }
-
- return 1;
-}
-
-#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
-
-const char *iwl_get_tx_fail_reason(u32 status)
-{
- switch (status & TX_STATUS_MSK) {
- case TX_STATUS_SUCCESS:
- return "SUCCESS";
- TX_STATUS_ENTRY(SHORT_LIMIT);
- TX_STATUS_ENTRY(LONG_LIMIT);
- TX_STATUS_ENTRY(FIFO_UNDERRUN);
- TX_STATUS_ENTRY(MGMNT_ABORT);
- TX_STATUS_ENTRY(NEXT_FRAG);
- TX_STATUS_ENTRY(LIFE_EXPIRE);
- TX_STATUS_ENTRY(DEST_PS);
- TX_STATUS_ENTRY(ABORTED);
- TX_STATUS_ENTRY(BT_RETRY);
- TX_STATUS_ENTRY(STA_INVALID);
- TX_STATUS_ENTRY(FRAG_DROPPED);
- TX_STATUS_ENTRY(TID_DISABLE);
- TX_STATUS_ENTRY(FRAME_FLUSHED);
- TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL);
- TX_STATUS_ENTRY(TX_LOCKED);
- TX_STATUS_ENTRY(NO_BEACON_ON_RADAR);
- }
-
- return "UNKNOWN";
-}
-
-/**
- * iwl_scan_cancel - Cancel any currently executing HW scan
- * @ms: amount of time to wait (in milliseconds) for scan to abort
- *
- * NOTE: priv->mutex must be held before calling this function
- */
-static int iwl_scan_cancel(struct iwl_priv *priv, unsigned long ms)
-{
- unsigned long now = jiffies;
-
- if (!(priv->status & STATUS_SCAN_HW)) {
- priv->status &= ~STATUS_SCANNING;
- return 0;
- }
-
- if (priv->status & STATUS_SCAN_PENDING) {
- IWL_DEBUG_SCAN("Canceling pending scan request.\n");
- priv->status &= ~STATUS_SCAN_PENDING;
- }
-
- if (priv->status & STATUS_SCANNING) {
- if (!(priv->status & STATUS_SCAN_ABORTING)) {
- IWL_DEBUG_SCAN("Queuing scan abort.\n");
- priv->status |= STATUS_SCAN_ABORTING;
- queue_work(priv->workqueue, &priv->abort_scan);
-
- } else {
- IWL_DEBUG_SCAN("Scan abort already in progress.\n");
- }
-
- mutex_unlock(&priv->mutex);
- if (ms)
- while (!time_after(jiffies,
- now + msecs_to_jiffies(ms)) &&
- priv->status & STATUS_SCANNING)
- msleep(1);
-
- mutex_lock(&priv->mutex);
- }
-
- return (priv->status & STATUS_SCANNING);
-}
-
-static void iwl_sequence_reset(struct iwl_priv *priv)
-{
- /* Reset ieee stats */
-
- /* We don't reset the net_device_stats (ieee->stats) on
- * re-association */
-
- priv->last_seq_num = -1;
- priv->last_frag_num = -1;
- priv->last_packet_time = 0;
-
- iwl_scan_cancel(priv, 0);
-}
-
-#if IWL == 4965
-#define MAX_UCODE_BEACON_INTERVAL 4096
-#else
-#define MAX_UCODE_BEACON_INTERVAL 1024
-#endif
-#define INTEL_CONN_LISTEN_INTERVAL 0xA
-
-static u16 iwl_adjust_beacon_interval(u16 beacon_val)
-{
- u16 new_val = 0;
- u16 beacon_factor = 0;
-
- beacon_factor =
- (beacon_val +
- MAX_UCODE_BEACON_INTERVAL) / MAX_UCODE_BEACON_INTERVAL;
- new_val = beacon_val / beacon_factor;
-
- return new_val;
-}
-
-static void iwl_setup_rxon_timing(struct iwl_priv *priv)
-{
- u64 interval_tm_unit;
- u64 tsf, result;
- unsigned long flags;
- struct ieee80211_conf *conf = NULL;
- u16 beacon_int = 0;
-
- conf = ieee80211_get_hw_conf(priv->hw);
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->rxon_timing.timestamp.dw[1] = priv->timestamp1;
- priv->rxon_timing.timestamp.dw[0] = priv->timestamp0;
-
- priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
-
- tsf = priv->timestamp1;
- tsf = ((tsf << 32) | priv->timestamp0);
-
- beacon_int = priv->beacon_int;
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
- if (beacon_int == 0) {
- priv->rxon_timing.beacon_interval = 100;
- priv->rxon_timing.beacon_init_val = 102400;
- } else {
- priv->rxon_timing.beacon_interval = beacon_int;
- priv->rxon_timing.beacon_interval =
- iwl_adjust_beacon_interval(
- priv->rxon_timing.beacon_interval);
- }
-
- priv->rxon_timing.atim_window = 0;
- } else {
- priv->rxon_timing.beacon_interval =
- iwl_adjust_beacon_interval(conf->beacon_int);
- /* TODO: we need to get atim_window from upper stack
- * for now we set to 0 */
- priv->rxon_timing.atim_window = 0;
- }
-
- interval_tm_unit = (priv->rxon_timing.beacon_interval * 1024);
- result = do_div(tsf, interval_tm_unit);
- priv->rxon_timing.beacon_init_val =
- (u32) ((u64) interval_tm_unit - result);
-
- IWL_DEBUG_ASSOC
- ("beacon interval %d beacon timer %d beacon tim %d\n",
- priv->rxon_timing.beacon_interval,
- priv->rxon_timing.beacon_init_val, priv->rxon_timing.atim_window);
-}
-
-static int iwl_scan_initiate(struct iwl_priv *priv)
-{
- if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
- IWL_ERROR("APs don't scan.\n");
- return 0;
- }
-
- if (!iwl_is_ready_rf(priv)) {
- IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
- return -EIO;
- }
-
- if (priv->status & STATUS_SCANNING) {
- IWL_DEBUG_SCAN("Scan already in progress.\n");
- return -EAGAIN;
- }
-
- if (priv->status & STATUS_SCAN_ABORTING) {
- IWL_DEBUG_SCAN("Scan request while abort pending. "
- "Queuing.\n");
- return -EAGAIN;
- }
-
- IWL_DEBUG_INFO("Starting scan...\n");
- priv->scan_bands = 2;
- priv->status |= STATUS_SCANNING;
- priv->scan_start = jiffies;
- priv->scan_pass_start = priv->scan_start;
-
- queue_work(priv->workqueue, &priv->request_scan);
-
- return 0;
-}
-
-static int iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
-{
- struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
-
- if (hw_decrypt)
- rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
- else
- rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
-
- return 0;
-}
-
-static void iwl_set_flags_for_phymode(struct iwl_priv *priv, u8 phymode)
-{
- if ((phymode == MODE_IEEE80211A) ||
- (phymode == MODE_ATHEROS_TURBO)) {
- priv->staging_rxon.flags &=
- ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
- | RXON_FLG_CCK_MSK);
- priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
- } else {
- /* Copied from iwl_bg_post_associate() */
- if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
- priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
- else
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-
- priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
- priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
- priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
- }
-}
-
-/*
- * initilize rxon structure with default values fromm eeprom
- */
-static void iwl_connection_init_rx_config(struct iwl_priv *priv)
-{
- const struct iwl_channel_info *ch_info;
-
- memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
-
- switch (priv->iw_mode) {
- case IEEE80211_IF_TYPE_AP:
- priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
- break;
-
- case IEEE80211_IF_TYPE_STA:
- priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
- priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
- break;
-
- case IEEE80211_IF_TYPE_IBSS:
- priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
- priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
- priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
- RXON_FILTER_ACCEPT_GRP_MSK;
- break;
-
- case IEEE80211_IF_TYPE_MNTR:
- priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
- priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
- RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
- break;
- }
-
-#if 0
- /* TODO: Figure out when short_preamble would be set and cache from
- * that */
- if (!hw_to_local(priv->hw)->short_preamble)
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
-#endif
-
- ch_info = iwl_get_channel_info(priv, priv->phymode,
- priv->staging_rxon.channel);
-
- if (!ch_info)
- ch_info = &priv->channel_info[0];
-
- /*
- * in some case A channels are all non IBSS
- * in this case force B/G channel
- */
- if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
- !(is_channel_ibss(ch_info)))
- ch_info = &priv->channel_info[0];
-
- priv->staging_rxon.channel = ch_info->channel;
- if (is_channel_a_band(ch_info))
- priv->phymode = MODE_IEEE80211A;
- else
- priv->phymode = MODE_IEEE80211G;
-
- iwl_set_flags_for_phymode(priv, priv->phymode);
-
- priv->staging_rxon.ofdm_basic_rates =
- (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
- priv->staging_rxon.cck_basic_rates =
- (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
-
-#if IWL == 4965
- priv->staging_rxon.flags |= RXON_FLG_CHANNEL_MODE_LEGACY_MSK;
- memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
- memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN);
- priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
- priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
- iwl4965_set_rxon_chain(priv);
-#endif
-}
-
-static int iwl_set_mode(struct iwl_priv *priv, int mode)
-{
- if (!iwl_is_ready_rf(priv))
- return -EAGAIN;
-
- if (mode == IEEE80211_IF_TYPE_IBSS) {
- const struct iwl_channel_info *ch_info;
-
- ch_info = iwl_get_channel_info(priv,
- priv->phymode,
- priv->staging_rxon.channel);
-
- if (!ch_info || !is_channel_ibss(ch_info)) {
- IWL_ERROR("channel %d not IBSS channel\n",
- priv->staging_rxon.channel);
- return -EINVAL;
- }
- }
-
- cancel_delayed_work(&priv->scan_check);
- priv->status &= ~STATUS_SCAN_PENDING;
- if (iwl_scan_cancel(priv, 100)) {
- IWL_WARNING("Aborted scan still in progress " "after 100ms\n");
- IWL_DEBUG_MAC80211("leaving - scan abort " "failed.\n");
- return -EAGAIN;
- }
-
- priv->iw_mode = mode;
-
- iwl_connection_init_rx_config(priv);
- memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
-
- iwl_clear_stations_table(priv);
-
- iwl_commit_rxon(priv);
-
- return 0;
-}
-
-static void iwl_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
- struct ieee80211_tx_control *ctl,
- struct iwl_cmd *cmd,
- struct sk_buff *skb_frag,
- int last_frag)
-{
- struct iwl_hw_key *keyinfo = &priv->stations[ctl->key_idx].keyinfo;
-
- switch (keyinfo->alg) {
- case ALG_CCMP:
- cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM;
-
- cmd->cmd.tx.hdr[0].frame_control |=
- cpu_to_le16(IEEE80211_FCTL_PROTECTED);
- /* XXX: ACK flag must be set for CCMP even if it
- * is a multicast/broadcast packet, because CCMP
- * group communication encrypted by GTK is
- * actually done by the AP. */
- cmd->cmd.tx.tx_flags |= TX_CMD_FLG_ACK_MSK;
- memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen);
- IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
- break;
- case ALG_TKIP:
-#if 0
- cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP;
-
- if (last_frag)
- memcpy(cmd->cmd.tx.tkip_mic.byte, skb_frag->tail - 8,
- 8);
- else
- memset(cmd->cmd.tx.tkip_mic.byte, 0, 8);
-
- cmd->cmd.tx.hdr[0].frame_control |=
- cpu_to_le16(IEEE80211_FCTL_PROTECTED);
- /* XXX: ACK flag must be set for CCMP even if it
- * is a multicast/broadcast packet, because CCMP
- * group communication encrypted by GTK is
- * actually done by the AP. */
- cmd->cmd.tx.tx_flags |= TX_CMD_FLG_ACK_MSK;
-#endif
- break;
- case ALG_WEP:
- cmd->cmd.tx.sec_ctl = 1 | /* WEP */
- (ctl->key_idx & 0x3) << 6;
-
- if (keyinfo->keylen == 13)
- cmd->cmd.tx.sec_ctl |= (1 << 3); /* 128-bit */
-
- memcpy(&cmd->cmd.tx.key[3], keyinfo->key, keyinfo->keylen);
-
- cmd->cmd.tx.hdr[0].frame_control |=
- cpu_to_le16(IEEE80211_FCTL_PROTECTED);
-
- IWL_DEBUG_TX("Configuring packet for WEP encryption "
- "with key %d\n", ctl->key_idx);
- break;
-
- case ALG_NONE:
- IWL_DEBUG_TX("Tx packet in the clear "
- "(encrypt requested).\n");
- break;
-
- default:
- printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg);
- break;
- }
-
-}
-
-/*
- * handle build REPLY_TX command notification.
- */
-static void iwl_build_tx_cmd_basic(struct iwl_priv *priv,
- struct iwl_cmd *cmd,
- struct ieee80211_tx_control *ctrl,
- struct ieee80211_hdr *hdr,
- int is_unicast, u8 std_id)
-{
- u32 tx_flags;
- u16 fc = le16_to_cpu(hdr->frame_control);
- u16 *qc;
-
- tx_flags = cmd->cmd.tx.tx_flags;
-
- cmd->cmd.tx.stop_time.life_time = 0xFFFFFFFF;
- if (!(ctrl->flags & IEEE80211_TXCTL_NO_ACK)) {
- tx_flags |= TX_CMD_FLG_ACK_MSK;
- if (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT)
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
- if (ieee80211_is_probe_response(fc) &&
- !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
- tx_flags |= TX_CMD_FLG_TSF_MSK;
- } else {
- tx_flags &= (~TX_CMD_FLG_ACK_MSK);
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
- }
-
- cmd->cmd.tx.sta_id = std_id;
- if (ieee80211_get_morefrag(hdr))
- tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
-
- qc = ieee80211_get_qos_ctrl(hdr);
- if (qc) {
- cmd->cmd.tx.tid_tspec = (u8) (*qc & 0xf);
- tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
- } else
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
-
- if (ctrl->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
- tx_flags |= TX_CMD_FLG_RTS_MSK;
- tx_flags &= ~TX_CMD_FLG_CTS_MSK;
- } else if (ctrl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
- tx_flags &= ~TX_CMD_FLG_RTS_MSK;
- tx_flags |= TX_CMD_FLG_CTS_MSK;
- }
-
- if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
- tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
-
- tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
- if (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) {
- if (((WLAN_FC_GET_STYPE(fc)) == IEEE80211_STYPE_ASSOC_REQ) ||
- ((WLAN_FC_GET_STYPE(fc)) == IEEE80211_STYPE_REASSOC_REQ))
- cmd->cmd.tx.timeout.pm_frame_timeout = 3;
- else
- cmd->cmd.tx.timeout.pm_frame_timeout = 2;
- } else
- cmd->cmd.tx.timeout.pm_frame_timeout = 0;
-
- cmd->cmd.tx.driver_txop = 0;
- cmd->cmd.tx.tx_flags = tx_flags;
- cmd->cmd.tx.next_frame_len = 0;
-}
-
-static int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
-{
- int sta_id;
- u16 fc = le16_to_cpu(hdr->frame_control);
-
- /* If this frame is broadcast or not data then use the broadcast
- * station id */
- if ((WLAN_FC_GET_TYPE(fc) != IEEE80211_FTYPE_DATA) ||
- is_multicast_ether_addr(hdr->addr1))
- return IWL_BROADCAST_ID;
-
- /* If this frame is part of a BSS network (we're a station), then
- * we use the AP's station id */
- if (priv->iw_mode == IEEE80211_IF_TYPE_STA)
- return IWL_AP_ID;
-
- /* If this frame is part of a IBSS network, then we use the
- * target specific station id */
- if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) {
- sta_id = iwl_hw_find_station(priv, hdr->addr1);
- if (sta_id != IWL_INVALID_STATION)
- return sta_id;
-
- sta_id = iwl_add_station(priv, hdr->addr1, 0,
- (CMD_ASYNC | CMD_NO_LOCK));
-
- if (sta_id != IWL_INVALID_STATION)
- return sta_id;
-
- IWL_DEBUG_DROP("Station " MAC_FMT " not in station map. "
- "Defaulting to broadcast...\n",
- MAC_ARG(hdr->addr1));
- printk_buf(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
- return IWL_BROADCAST_ID;
- }
-
- /* Otherwise we default to the broadcast station id */
- return IWL_BROADCAST_ID;
-}
-
-/*
- * start REPLY_TX command process
- */
-static int iwl_tx_skb(struct iwl_priv *priv,
- struct sk_buff *skb, struct ieee80211_tx_control *ctl)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- u8 *tfd;
- u32 *control_flags;
- int txq_id = ctl->queue;
- struct iwl_tx_queue *txq = &priv->txq[txq_id];
- struct iwl_queue *q = &txq->q;
- dma_addr_t phys_addr;
- dma_addr_t txcmd_phys;
- struct iwl_cmd *out_cmd = NULL;
- u16 len, idx, len_org;
- u8 id, hdr_len, unicast;
- u8 sta_id;
- u16 seq_number = 0;
- u16 fc;
- u16 *qc;
- u8 wait_write_ptr = 0;
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(&priv->lock, flags);
- if (priv->status & STATUS_RF_KILL_MASK) {
- IWL_DEBUG_DROP("Dropping - RF KILL\n");
- goto drop;
- }
-
- if (!priv->interface_id) {
- IWL_DEBUG_DROP("Dropping - !priv->interface_id\n");
- goto drop;
- }
-
- if ((ctl->tx_rate & 0xFF) == IWL_INVALID_RATE) {
- IWL_ERROR("ERROR: No TX rate available.\n");
- goto drop;
- }
-
- unicast = !is_multicast_ether_addr(hdr->addr1);
- id = 0;
-
- fc = le16_to_cpu(hdr->frame_control);
-
-#ifdef CONFIG_IWLWIFI_DEBUG
- if (ieee80211_is_auth(fc))
- IWL_DEBUG_TX("Sending AUTH frame\n");
- else if (ieee80211_is_assoc_request(fc))
- IWL_DEBUG_TX("Sending ASSOC frame\n");
- else if (ieee80211_is_reassoc_request(fc))
- IWL_DEBUG_TX("Sending REASSOC frame\n");
-#endif
-
- if (!iwl_is_associated(priv) &&
- (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA)) {
- IWL_DEBUG_DROP("Dropping - !iwl_is_associated\n");
- goto drop;
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- hdr_len = ieee80211_get_hdrlen(fc);
- sta_id = iwl_get_sta_id(priv, hdr);
- if (sta_id == IWL_INVALID_STATION) {
- IWL_DEBUG_DROP("Dropping - INVALID STATION: " MAC_FMT "\n",
- MAC_ARG(hdr->addr1));
- spin_lock_irqsave(&priv->lock, flags);
- goto drop;
- }
-
- IWL_DEBUG_RATE("station Id %d\n", sta_id);
-
- qc = ieee80211_get_qos_ctrl(hdr);
- if (qc) {
- u8 tid = (u8)(*qc & 0xf);
- seq_number = priv->stations[sta_id].tid[tid].seq_number &
- IEEE80211_SCTL_SEQ;
- hdr->seq_ctrl = cpu_to_le16(seq_number) |
- (hdr->seq_ctrl & IEEE80211_SCTL_FRAG);
- seq_number += 0x10;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
- tfd = (u8 *) (&txq->bd[q->first_empty * q->element_size]);
- memset(tfd, 0, q->element_size);
- control_flags = (u32 *) tfd;
- idx = get_next_cmd_index(q, q->first_empty, 0);
-
- memset(&(txq->txb[q->first_empty]), 0, sizeof(struct iwl_tx_info));
- txq->txb[q->first_empty].skb[0] = skb;
- memcpy(&(txq->txb[q->first_empty].status.control),
- ctl, sizeof(struct ieee80211_tx_control));
- out_cmd = &txq->cmd[idx];
- memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
- memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx));
- out_cmd->hdr.cmd = REPLY_TX;
- out_cmd->hdr.sequence = QUEUE_TO_SEQ(txq_id) |
- INDEX_TO_SEQ(q->first_empty);
- /* copy frags header */
- memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len);
-
- /* hdr = (struct ieee80211_hdr *)out_cmd->cmd.tx.hdr; */
- len = priv->hw_setting.tx_cmd_len +
- sizeof(struct iwl_cmd_header) + hdr_len;
-
- len_org = len;
- len = (len + 3) & ~3;
-
- if (len_org != len) {
- len_org = 1;
- } else
- len_org = 0;
- txcmd_phys =
- txq->dma_addr_cmd + sizeof(struct iwl_cmd) * idx +
- offsetof(struct iwl_cmd, hdr);
-
- iwl_hw_tx_queue_attach_buffer_to_tfd(priv, tfd, txcmd_phys,
- cpu_to_le16(len));
-
- if (ctl->key_idx != -1)
- iwl_build_tx_cmd_hwcrypto(priv, ctl, out_cmd, skb, 0);
-
- /* 802.11 null functions have no payload... */
- len = skb->len - hdr_len;
- if (len) {
- phys_addr = cpu_to_le32(pci_map_single(priv->pci_dev,
- skb->data + hdr_len,
- len, PCI_DMA_TODEVICE));
- iwl_hw_tx_queue_attach_buffer_to_tfd(priv, tfd, phys_addr,
- cpu_to_le16(len));
- }
-
- out_cmd->cmd.tx.len = skb->len;
-
-#if IWL == 3945
- /* If there is no payload, then only one TFD is used */
- if (!len)
- *control_flags = TFD_CTL_COUNT_SET(1);
- else
- *control_flags = TFD_CTL_COUNT_SET(2) |
- TFD_CTL_PAD_SET(U32_PAD(len));
-#else
- if (len_org)
- out_cmd->cmd.tx.tx_flags |= TX_CMD_FLG_MH_PAD_MSK;
-#endif
-
- /* todoG need this for burst mode later on */
- iwl_build_tx_cmd_basic(priv, out_cmd, ctl, hdr, unicast, sta_id);
-
- /* set is_hcca to 0; it probably will never be implemented */
- iwl_hw_build_tx_cmd_rate(priv, out_cmd, ctl, hdr, sta_id, 0);
-
- len = out_cmd->cmd.tx.len;
-
-#if IWL == 4965
- iwl4965_tx_cmd(priv, out_cmd, sta_id, txcmd_phys,
- hdr, hdr_len, ctl, NULL);
-#elif IWL == 3945
- out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
- out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
-#endif
-
- if (!(ieee80211_get_morefrag(hdr))) {
- txq->need_update = 1;
- if ( qc ) {
- u8 tid = (u8)(*qc & 0xf);
- priv->stations[sta_id].tid[tid].seq_number =
- seq_number;
- }
- } else {
- wait_write_ptr = 1;
- txq->need_update = 0;
- }
-
- printk_buf(IWL_DL_TX, out_cmd->cmd.payload, sizeof(out_cmd->cmd.tx));
-
- printk_buf(IWL_DL_TX, (u8 *) out_cmd->cmd.tx.hdr,
- ieee80211_get_hdrlen(out_cmd->cmd.tx.hdr->frame_control));
-
- iwl4965_tx_queue_update_wr_ptr(priv, txq, len);
-
- q->first_empty = iwl_queue_inc_wrap(q->first_empty, q->n_bd);
- rc = iwl_tx_queue_update_write_ptr(priv, txq);
- spin_unlock_irqrestore(&priv->lock, flags);
- if (rc)
- return rc;
-
- if ((iwl_queue_space(q) < q->high_mark)
- && priv->mac80211_registered) {
- if (wait_write_ptr) {
- spin_lock_irqsave(&priv->lock, flags);
- txq->need_update = 1;
- iwl_tx_queue_update_write_ptr(priv, txq);
- spin_unlock_irqrestore(&priv->lock, flags);
- }
-
- ieee80211_stop_queue(priv->hw, ctl->queue);
- }
-
- return 0;
-
- drop:
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return -1;
-}
-
-static void iwl_set_rate(struct iwl_priv *priv)
-{
- const struct ieee80211_hw_mode *hw = NULL;
- struct ieee80211_rate *rate;
- int i;
-
- hw = iwl_get_hw_mode(priv, priv->phymode);
-
- priv->active_rate = 0;
- priv->active_rate_basic = 0;
-
- IWL_DEBUG_RATE("Setting rates for 802.11%c\n",
- ((hw->mode == MODE_IEEE80211A) ||
- (hw->mode == MODE_ATHEROS_TURBO)) ?
- 'a' : ((hw->mode == MODE_IEEE80211B) ? 'b' : 'g'));
-
- for (i = 0; i < hw->num_rates; i++) {
- rate = &(hw->rates[i]);
- if ((rate->val < IWL_RATE_COUNT) &&
- (rate->flags & IEEE80211_RATE_SUPPORTED)) {
- IWL_DEBUG_RATE("Adding rate index %d (plcp %d)%s\n",
- rate->val, iwl_rates[rate->val].plcp,
- (rate->flags & IEEE80211_RATE_BASIC) ?
- "*" : "");
- priv->active_rate |= (1 << rate->val);
- if (rate->flags & IEEE80211_RATE_BASIC)
- priv->active_rate_basic |= (1 << rate->val);
- } else {
- IWL_DEBUG_RATE("Not adding rate %d (plcp %d)\n",
- rate->val, iwl_rates[rate->val].plcp);
- }
- }
-
- IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
- priv->active_rate, priv->active_rate_basic);
-
- /*
- * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
- * otherwise set it to the default of all CCK rates and 6, 12, 24 for
- * OFDM
- */
- if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
- priv->staging_rxon.cck_basic_rates =
- ((priv->active_rate_basic &
- IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
- else
- priv->staging_rxon.cck_basic_rates =
- (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
-
- if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
- priv->staging_rxon.ofdm_basic_rates =
- ((priv->active_rate_basic &
- (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
- IWL_FIRST_OFDM_RATE) & 0xFF;
- else
- priv->staging_rxon.ofdm_basic_rates =
- (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
-}
-
-static void iwl_radio_kill_sw(struct iwl_priv *priv, int disable_radio)
-{
- unsigned long flags;
-
- if ((disable_radio ? 1 : 0) ==
- ((priv->status & STATUS_RF_KILL_SW) ? 1 : 0))
- return;
-
- IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
- disable_radio ? "OFF" : "ON");
-
- if (disable_radio) {
- iwl_scan_cancel(priv, 0);
- /* FIXME: This is a workaround for AP */
- if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
- spin_lock_irqsave(&priv->lock, flags);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_SW_BIT_RFKILL);
- spin_unlock_irqrestore(&priv->lock, flags);
- iwl_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0);
- priv->status |= STATUS_RF_KILL_SW;
- }
- return;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-
- priv->status &= ~STATUS_RF_KILL_SW;
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* wake up ucode */
- msleep(10);
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl_read32(priv, CSR_UCODE_DRV_GP1);
- if (!iwl_grab_restricted_access(priv))
- iwl_release_restricted_access(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (priv->status & STATUS_RF_KILL_HW) {
- IWL_DEBUG_RF_KILL("Can not turn radio back on - "
- "disabled by HW switch\n");
- return;
- }
-
- queue_work(priv->workqueue, &priv->restart);
- return;
-}
-
-void iwl_set_decrypted_flag(struct iwl_priv *priv, struct sk_buff *skb,
- u32 decrypt_res, struct ieee80211_rx_status *stats)
-{
- u16 fc =
- le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control);
-
- if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK)
- return;
-
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- return;
-
- IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res);
- switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
- case RX_RES_STATUS_SEC_TYPE_TKIP:
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_BAD_ICV_MIC)
- stats->flag |= RX_FLAG_MMIC_ERROR;
- case RX_RES_STATUS_SEC_TYPE_WEP:
- case RX_RES_STATUS_SEC_TYPE_CCMP:
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_DECRYPT_OK) {
- IWL_DEBUG_RX("hw decrypt successfully!!!\n");
- stats->flag |= RX_FLAG_DECRYPTED;
- }
- break;
-
- default:
- break;
- }
-}
-
-void iwl_handle_data_packet_monitor(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- void *data, short len,
- struct ieee80211_rx_status *stats,
- u16 phy_flags)
-{
- struct iwl_rt_rx_hdr *iwl_rt;
-
- /* First cache any information we need before we overwrite
- * the information provided in the skb from the hardware */
- s8 signal = stats->ssi;
- s8 noise = 0;
- u16 channel = stats->channel;
- int rate = stats->rate;
- u64 tsf = stats->mactime;
-
- /* We received data from the HW, so stop the watchdog */
- if (len > IWL_RX_BUF_SIZE - sizeof(*iwl_rt)) {
- IWL_DEBUG_DROP("Dropping too large packet in monitor\n");
- return;
- }
-
- /* copy the frame data to write after where the radiotap header goes */
- iwl_rt = (void *)rxb->skb->data;
- memmove(iwl_rt->payload, data, len);
-
- iwl_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
- iwl_rt->rt_hdr.it_pad = 0; /* always good to zero */
-
- /* total header + data */
- iwl_rt->rt_hdr.it_len = cpu_to_le16(sizeof(*iwl_rt));
-
- /* Set the size of the skb to the size of the frame */
- skb_put(rxb->skb, sizeof(*iwl_rt) + len);
-
- /* Big bitfield of all the fields we provide in radiotap */
- iwl_rt->rt_hdr.it_present =
- cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) |
- (1 << IEEE80211_RADIOTAP_FLAGS) |
- (1 << IEEE80211_RADIOTAP_RATE) |
- (1 << IEEE80211_RADIOTAP_CHANNEL) |
- (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
- (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
- (1 << IEEE80211_RADIOTAP_ANTENNA));
-
- /* Zero the flags, we'll add to them as we go */
- iwl_rt->rt_flags = 0;
-
- iwl_rt->rt_tsf = cpu_to_le64(tsf);
-
- /* Convert to dBm */
- iwl_rt->rt_dbmsignal = signal;
- iwl_rt->rt_dbmnoise = noise;
-
- /* Convert the channel data and set the flags */
- iwl_rt->rt_channel = cpu_to_le16(channel);
- if (!(phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK)) {
- iwl_rt->rt_chbitmask =
- cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
- } else if (phy_flags & RX_RES_PHY_FLAGS_MOD_CCK_MSK) {
- iwl_rt->rt_chbitmask =
- cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
- } else { /* 802.11g */
- iwl_rt->rt_chbitmask =
- cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ));
- }
-
- rate = iwl_rate_index_from_plcp(rate);
- if (rate == -1)
- iwl_rt->rt_rate = 0;
- else
- iwl_rt->rt_rate = iwl_rates[rate].ieee;
-
- /* antenna number */
- iwl_rt->rt_antenna = (phy_flags & RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4;
-
- /* set the preamble flag if we have it */
- if (phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
- iwl_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
-
- IWL_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
-
- stats->flag |= RX_FLAG_RADIOTAP;
- ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats);
- rxb->skb = NULL;
-}
-
-
-#define IWL_PACKET_RETRY_TIME HZ
-
-int is_duplicate_packet(struct iwl_priv *priv, struct ieee80211_hdr *header)
-{
- u16 sc = le16_to_cpu(header->seq_ctrl);
- u16 seq = WLAN_GET_SEQ_SEQ(sc);
- u16 frag = WLAN_GET_SEQ_FRAG(sc);
- u16 *last_seq, *last_frag;
- unsigned long *last_time;
-
- switch (priv->iw_mode) {
- case IEEE80211_IF_TYPE_IBSS:{
- struct list_head *p;
- struct iwl_ibss_seq *entry = NULL;
- u8 *mac = header->addr2;
- int index = mac[5] % IWL_IBSS_MAC_HASH_SIZE;
-
- __list_for_each(p, &priv->ibss_mac_hash[index]) {
- entry =
- list_entry(p, struct iwl_ibss_seq, list);
- if (!compare_ether_addr(entry->mac, mac))
- break;
- }
- if (p == &priv->ibss_mac_hash[index]) {
- entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
- if (!entry) {
- IWL_ERROR
- ("Cannot malloc new mac entry\n");
- return 0;
- }
- memcpy(entry->mac, mac, ETH_ALEN);
- entry->seq_num = seq;
- entry->frag_num = frag;
- entry->packet_time = jiffies;
- list_add(&entry->list,
- &priv->ibss_mac_hash[index]);
- return 0;
- }
- last_seq = &entry->seq_num;
- last_frag = &entry->frag_num;
- last_time = &entry->packet_time;
- break;
- }
- case IEEE80211_IF_TYPE_STA:
- last_seq = &priv->last_seq_num;
- last_frag = &priv->last_frag_num;
- last_time = &priv->last_packet_time;
- break;
- default:
- return 0;
- }
- if ((*last_seq == seq) &&
- time_after(*last_time + IWL_PACKET_RETRY_TIME, jiffies)) {
- if (*last_frag == frag)
- goto drop;
- if (*last_frag + 1 != frag)
- /* out-of-order fragment */
- goto drop;
- } else
- *last_seq = seq;
-
- *last_frag = frag;
- *last_time = jiffies;
- return 0;
-
- drop:
- return 1;
-}
-
-#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
-
-#include "iwl-spectrum.h"
-
-#define BEACON_TIME_MASK_LOW 0x00FFFFFF
-#define BEACON_TIME_MASK_HIGH 0xFF000000
-#define TIME_UNIT 1024
-
-/*
- * extended beacon time format
- * time in usec will be changed into a 32-bit value in 8:24 format
- * the high 1 byte is the beacon counts
- * the lower 3 bytes is the time in usec within one beacon interval
- */
-
-static u32 iwl_usecs_to_beacons(u32 usec, u32 beacon_interval)
-{
- u32 quot;
- u32 rem;
- u32 interval = beacon_interval * 1024;
-
- if (!interval || !usec)
- return 0;
-
- quot = (usec / interval) % 0x100;
- rem = (usec % interval) % BEACON_TIME_MASK_LOW;
-
- return (quot << 24) + rem;
-}
-
-/* base is usually what we get from ucode with each received frame,
- * the same as HW timer counter counting down
- */
-
-static u32 iwl_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
-{
- u32 base_low = base & BEACON_TIME_MASK_LOW;
- u32 addon_low = addon & BEACON_TIME_MASK_LOW;
- u32 interval = beacon_interval * TIME_UNIT;
- u32 res = (base & BEACON_TIME_MASK_HIGH) +
- (addon & BEACON_TIME_MASK_HIGH);
-
- if (base_low > addon_low)
- res += base_low - addon_low;
- else if (base_low < addon_low) {
- res += interval + base_low - addon_low;
- res += (1 << 24);
- } else
- res += (1 << 24);
-
- return res;
-}
-
-static int iwl_get_measurement(struct iwl_priv *priv,
- struct ieee80211_measurement_params *params,
- u8 type)
-{
- struct iwl_spectrum_cmd spectrum;
- struct iwl_rx_packet *res;
- struct iwl_host_cmd cmd = {
- .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
- .data = (void *)&spectrum,
- .meta.flags = CMD_WANT_SKB,
- };
- u32 add_time = params->start_time;
- int rc;
-
- if (iwl_is_associated(priv))
- add_time =
- iwl_usecs_to_beacons(params->start_time - priv->last_tsf,
- priv->rxon_timing.beacon_interval);
-
- memset(&spectrum, 0, sizeof(spectrum));
-
- spectrum.channel_count = 1;
- spectrum.flags =
- RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
- spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
- cmd.len = sizeof(spectrum);
- spectrum.len = cmd.len - sizeof(spectrum.len);
-
- if (iwl_is_associated(priv))
- spectrum.start_time =
- iwl_add_beacon_time(priv->last_beacon_time,
- add_time,
- priv->rxon_timing.beacon_interval);
- else
- spectrum.start_time = params->start_time;
-
- spectrum.channels[0].duration = params->duration * TIME_UNIT;
- spectrum.channels[0].channel = params->channel;
- spectrum.channels[0].type = type;
- if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
- spectrum.flags |= RXON_FLG_BAND_24G_MSK |
- RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
-
- rc = iwl_send_cmd(priv, &cmd);
- if (rc)
- return rc;
-
- res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
- if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
- rc = -EIO;
- }
-
- switch (res->u.spectrum.status) {
- case 0: /* Command will be handled */
- if (res->u.spectrum.id != 0xff) {
- IWL_DEBUG_INFO
- ("Replaced existing measurement: %d\n",
- res->u.spectrum.id);
- priv->measurement_status &= ~MEASUREMENT_READY;
- }
- priv->measurement_status |= MEASUREMENT_ACTIVE;
- rc = 0;
- break;
-
- case 1: /* Command will not be handled */
- rc = -EAGAIN;
- break;
- }
-
- dev_kfree_skb_any(cmd.meta.u.skb);
-
- return rc;
-}
-#endif
-
-static void iwl_txstatus_to_ieee(struct iwl_priv *priv,
- struct iwl_tx_info *tx_sta)
-{
-
- tx_sta->status.ack_signal = 0;
- tx_sta->status.excessive_retries = 0;
- tx_sta->status.queue_length = 0;
- tx_sta->status.queue_number = 0;
-
- if (in_interrupt())
- ieee80211_tx_status_irqsafe(priv->hw,
- tx_sta->skb[0], &(tx_sta->status));
- else
- ieee80211_tx_status(priv->hw,
- tx_sta->skb[0], &(tx_sta->status));
-
- tx_sta->skb[0] = NULL;
-}
-
-/**
- * iwl_tx_queue_reclaim - Reclaim Tx queue entries no more used by NIC.
- *
- * When FW advances 'R' index, all entries between old and
- * new 'R' index need to be reclaimed. As result, some free space
- * forms. If there is enough free space (> low mark), wake Tx queue.
- */
-static int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
-{
- struct iwl_tx_queue *txq = &priv->txq[txq_id];
- struct iwl_queue *q = &txq->q;
- u8 is_next = 0;
- int used;
- if ((index >= q->n_bd) || (x2_queue_used(q, index) == 0)) {
- IWL_ERROR("Read index for DMA queue (%d) is out of "
- "range [0-%d) %d %d\n",
- index, q->n_bd, q->first_empty, q->last_used);
- goto done;
- }
- index = iwl_queue_inc_wrap(index, q->n_bd);
- for (; q->last_used != index;
- q->last_used = iwl_queue_inc_wrap(q->last_used, q->n_bd)) {
- if (is_next) {
- IWL_WARNING("command skipped\n");
- queue_work(priv->workqueue, &priv->restart);
- }
- if (txq_id != IWL_CMD_QUEUE_NUM) {
- iwl_txstatus_to_ieee(priv,
- &(txq->txb[txq->q.last_used]));
- iwl_hw_tx_queue_free_tfd(priv, txq);
- } else
- is_next = 1;
- }
- done:
- if (iwl_queue_space(q) > q->low_mark && (txq_id >= 0)
- && (txq_id != IWL_CMD_QUEUE_NUM)
- && priv->mac80211_registered)
- ieee80211_wake_queue(priv->hw, txq_id);
-
- used = q->first_empty - q->last_used;
- if (used < 0)
- used += q->n_window;
- return used;
-}
-
-static int iwl_is_tx_success(u32 status)
-{
-#if IWL == 3945
- return (status & 0xFF) == 0x1;
-#elif IWL == 4965
- status &= TX_STATUS_MSK;
- return (status == TX_STATUS_SUCCESS)
- || (status == TX_STATUS_DIRECT_DONE);
-#endif
-}
-
-/******************************************************************************
- *
- * Generic RX handler implementations
- *
- ******************************************************************************/
-
-static void iwl_rx_reply_tx(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- u16 sequence = pkt->hdr.sequence;
- int txq_id = SEQ_TO_QUEUE(sequence);
- int index = SEQ_TO_INDEX(sequence);
- struct iwl_tx_queue *txq = &priv->txq[txq_id];
- struct ieee80211_tx_status *status;
- struct iwl_tx_resp *resp = (void *)&pkt->u.raw[0];
-
- if ((index >= txq->q.n_bd) || (x2_queue_used(&txq->q, index) == 0)) {
- IWL_ERROR("Read index for DMA queue (%d) "
- "is out of range [0-%d) %d %d\n",
- index, txq->q.n_bd, txq->q.first_empty,
- txq->q.last_used);
- return;
- }
-
- status = &(txq->txb[txq->q.last_used].status);
-
- status->retry_count = resp->failure_frame;
- status->queue_number = resp->status;
- status->queue_length = resp->bt_kill_count;
- status->queue_length |= resp->failure_rts;
-
- status->flags =
- iwl_is_tx_success(resp->status) ? IEEE80211_TX_STATUS_ACK : 0;
-
-#if IWL == 3945
-
- status->control.tx_rate = iwl_rate_index_from_plcp(resp->rate);
-
- IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n",
- txq_id, iwl_get_tx_fail_reason(resp->status),
- resp->status, resp->rate, resp->failure_frame);
-
-#elif IWL == 4965
-
- status->control.tx_rate = resp->rate.s.rate | (resp->rate.s.flags << 8);
-
- IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n",
- txq_id, iwl_get_tx_fail_reason(resp->status),
- resp->status, resp->rate.s.rate, resp->failure_frame);
-#endif
-
- IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index);
- if (index != -1)
- iwl_tx_queue_reclaim(priv, txq_id, index);
-
- if (iwl_check_bits(resp->status, TX_ABORT_REQUIRED_MSK))
- IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
-}
-
-
-static void iwl_rx_reply_alive(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_alive_resp *palive;
- struct work_struct *pwork;
-
- palive = &pkt->u.alive_frame;
-
- IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
- "0x%01X 0x%01X\n",
- palive->is_valid, palive->ver_type,
- palive->ver_subtype);
-
- if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
- IWL_DEBUG_INFO("Initialization Alive received.\n");
- memcpy(&priv->card_alive_init,
- &pkt->u.alive_frame,
- sizeof(struct iwl_init_alive_resp));
- pwork = &priv->init_alive_start;
- } else {
- IWL_DEBUG_INFO("Runtime Alive received.\n");
- memcpy(&priv->card_alive, &pkt->u.alive_frame,
- sizeof(struct iwl_alive_resp));
- pwork = &priv->alive_start;
-#if IWL == 3945
- /* For debugging (selective disable not supported in 4965) */
- iwl_disable_events(priv);
-#endif
- }
-
- /* We delay the ALIVE response by 5ms to
- * give the HW RF Kill time to activate... */
- if (palive->is_valid == UCODE_VALID_OK)
- queue_delayed_work(priv->workqueue, pwork,
- msecs_to_jiffies(5));
- else
- IWL_WARNING("uCode did not respond OK.\n");
-}
-
-static void iwl_rx_reply_add_sta(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
- return;
-}
-
-static void iwl_rx_reply_error(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- u32 err_type = pkt->u.err_resp.error_type;
- u8 cmd_id = pkt->u.err_resp.cmd_id;
- u16 seq = pkt->u.err_resp.bad_cmd_seq_num;
- u32 ser = pkt->u.err_resp.error_info;
- IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
- "seq 0x%04X ser 0x%08X\n",
- err_type, get_cmd_string(cmd_id), cmd_id, seq, ser);
- return;
-}
-
-#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
-
-static void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
- struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
- IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
- csa->channel, csa->status);
- rxon->channel = priv->staging_rxon.channel = cpu_to_le16(csa->channel);
-}
-
-static void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_spectrum_notification *report = &(pkt->u.spectrum_notif);
-
- if (!report->state) {
- IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO,
- "Spectrum Measure Notification: Start\n");
- return;
- }
-
- memcpy(&priv->measure_report, report, sizeof(*report));
- priv->measurement_status |= MEASUREMENT_READY;
-#endif
-}
-
-static void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWLWIFI_DEBUG
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif);
- IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
- sleep->pm_sleep_mode, sleep->pm_wakeup_src);
-#endif
-}
-
-static void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
- "notification for %s:\n",
- le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
- printk_buf(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
-}
-
-static void iwl_rx_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWLWIFI_DEBUG
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_beacon_notif *beacon = &(pkt->u.beacon_status);
-#if IWL == 3945
- u8 rate = beacon->beacon_notify_hdr.rate;
-#elif IWL == 4965
- u8 rate = beacon->beacon_notify_hdr.rate.s.rate;
-#endif
- IWL_DEBUG_RX("beacon status %x retries %d iss %d "
- "tsf %d %d rate %d\n",
- beacon->beacon_notify_hdr.status & TX_STATUS_MSK,
- beacon->beacon_notify_hdr.failure_frame,
- beacon->ibss_mgr_status,
- beacon->high_tsf, beacon->low_tsf, rate);
-#endif
-}
-
-static void iwl_rx_reply_scan(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_scanreq_notification *notif =
- (struct iwl_scanreq_notification *)pkt->u.raw;
- IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
-}
-
-static void iwl_rx_scan_start_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_scanstart_notification *notif =
- (struct iwl_scanstart_notification *)pkt->u.raw;
- priv->scan_start_tsf = notif->tsf_low;
- IWL_DEBUG_SCAN("Scan start: "
- "%d [802.11%s] "
- "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
- notif->channel,
- notif->band ? "bg" : "a",
- notif->tsf_high,
- notif->tsf_low, notif->status, notif->beacon_timer);
-}
-
-static void iwl_rx_scan_results_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_scanresults_notification *notif =
- (struct iwl_scanresults_notification *)pkt->u.raw;
-
- IWL_DEBUG_SCAN("Scan ch.res: "
- "%d [802.11%s] "
- "(TSF: 0x%08X:%08X) - %d "
- "elapsed=%lu usec (%dms since last)\n",
- notif->channel,
- notif->band ? "bg" : "a",
- notif->tsf_high,
- notif->tsf_low,
- notif->statistics[0],
- notif->tsf_low - priv->scan_start_tsf,
- jiffies_to_msecs(elapsed_jiffies
- (priv->last_scan_jiffies, jiffies)));
-
- priv->last_scan_jiffies = jiffies;
-}
-
-static void iwl_rx_scan_complete_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_scancomplete_notification *scan_notif =
- (struct iwl_scancomplete_notification *)pkt->u.raw;
- IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
- scan_notif->scanned_channels,
- scan_notif->tsf_low,
- scan_notif->tsf_high, scan_notif->status);
-
- /* The HW is no longer scanning */
- priv->status &= ~STATUS_SCAN_HW;
-
- /* The scan completion notification came in, so kill that timer... */
- cancel_delayed_work(&priv->scan_check);
-
- IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
- (priv->scan_bands == 2) ? "2.4" : "5.2",
- jiffies_to_msecs(elapsed_jiffies
- (priv->scan_pass_start, jiffies)));
-
- /* Remove this scanned band from the list
- * of pending bands to scan */
- priv->scan_bands--;
-
- /* If a request to abort was given, or the scan did not succeed
- * then we reset the scan state machine and terminate,
- * re-queuing another scan if one has been requested */
- if (priv->status & STATUS_SCAN_ABORTING) {
- IWL_DEBUG_INFO("Aborted scan completed.\n");
- priv->status &= ~STATUS_SCAN_ABORTING;
- } else {
- /* If there are more bands on this scan pass reschedule */
- if (priv->scan_bands > 0)
- goto reschedule;
- }
-
- priv->last_scan_jiffies = jiffies;
- IWL_DEBUG_INFO("Setting scan to off\n");
-
- priv->status &= ~STATUS_SCANNING;
-
- IWL_DEBUG_INFO("Scan took %dms\n",
- jiffies_to_msecs(elapsed_jiffies
- (priv->scan_start, jiffies)));
-
- queue_work(priv->workqueue, &priv->scan_completed);
-
- return;
-
- reschedule:
- priv->scan_pass_start = jiffies;
- queue_work(priv->workqueue, &priv->request_scan);
-}
-
-/* Handle notification from uCode that card's power state is changing
- * due to software, hardware, or critical temperature RFKILL */
-static void iwl_rx_card_state_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
- u32 status = priv->status;
- IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
- (flags & HW_CARD_DISABLED) ? "Kill" : "On",
- (flags & SW_CARD_DISABLED) ? "Kill" : "On");
-#if IWL == 4965
- if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
- RF_CARD_DISABLED)) {
-
- iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
- if (!iwl_grab_restricted_access(priv)) {
- iwl_write_restricted(
- priv, HBUS_TARG_MBX_C,
- HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
-
- iwl_release_restricted_access(priv);
- }
-
- if (!(flags & RXON_CARD_DISABLED)) {
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
- if (!iwl_grab_restricted_access(priv)) {
- iwl_write_restricted(
- priv, HBUS_TARG_MBX_C,
- HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
-
- iwl_release_restricted_access(priv);
- }
- }
-
- if (flags & RF_CARD_DISABLED) {
- iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
- iwl_read32(priv, CSR_UCODE_DRV_GP1);
- if (!iwl_grab_restricted_access(priv))
- iwl_release_restricted_access(priv);
- }
- }
-#else
- iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-#endif
- if (flags & HW_CARD_DISABLED)
- priv->status |= STATUS_RF_KILL_HW;
- else
- priv->status &= ~STATUS_RF_KILL_HW;
-
-
- if (flags & SW_CARD_DISABLED)
- priv->status |= STATUS_RF_KILL_SW;
- else
- priv->status &= ~STATUS_RF_KILL_SW;
-
-#if IWL == 4965
- if (!(flags & RXON_CARD_DISABLED))
- iwl_scan_cancel(priv, 0);
-#else
- iwl_scan_cancel(priv, 0);
-#endif
-
- if (((status & STATUS_RF_KILL_HW) != (priv->status & STATUS_RF_KILL_HW))
- || ((status & STATUS_RF_KILL_SW) !=
- (priv->status & STATUS_RF_KILL_SW)))
- queue_work(priv->workqueue, &priv->rf_kill);
- else
- wake_up_interruptible(&priv->wait_command_queue);
-}
-
-/**
- * iwl_setup_rx_handlers - Initialize Rx handler callbacks
- *
- * Setup the RX handlers for each of the reply types sent from the uCode
- * to the host.
- *
- * This function chains into the hardware specific files for them to setup
- * any hardware specific handlers as well.
- */
-static void iwl_setup_rx_handlers(struct iwl_priv *priv)
-{
- priv->rx_handlers[REPLY_ALIVE] = iwl_rx_reply_alive;
- priv->rx_handlers[REPLY_ADD_STA] = iwl_rx_reply_add_sta;
- priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error;
- priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa;
- priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
- iwl_rx_spectrum_measure_notif;
- priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif;
- priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
- iwl_rx_pm_debug_statistics_notif;
- priv->rx_handlers[BEACON_NOTIFICATION] = iwl_rx_beacon_notif;
-
- /* NOTE: iwl_rx_statistics is different based on whether
- * the build is for the 3945 or the 4965. See the
- * corresponding implementation in iwl-XXXX.c
- *
- * The same handler is used for both the REPLY to a
- * discrete statistics request from the host as well as
- * for the periodic statistics notification from the uCode
- */
- priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl_hw_rx_statistics;
- priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl_hw_rx_statistics;
-
- priv->rx_handlers[REPLY_SCAN_CMD] = iwl_rx_reply_scan;
- priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl_rx_scan_start_notif;
- priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
- iwl_rx_scan_results_notif;
- priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
- iwl_rx_scan_complete_notif;
- priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl_rx_card_state_notif;
- priv->rx_handlers[REPLY_TX] = iwl_rx_reply_tx;
-
- /* Setup hardware specific Rx handlers */
- iwl_hw_rx_handler_setup(priv);
-}
-
-/**
- * iwl_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
- * @rxb: Rx buffer to reclaim
- *
- * If an Rx buffer has an async callback associated with it the callback
- * will be executed. The attached skb (if present) will only be freed
- * if the callback returns 1
- */
-static void iwl_tx_cmd_complete(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
- int txq_id = SEQ_TO_QUEUE(pkt->hdr.sequence);
- int index = SEQ_TO_INDEX(pkt->hdr.sequence);
- int is_huge = (pkt->hdr.sequence & SEQ_HUGE_FRAME);
- int cmd_index;
- struct iwl_cmd *cmd;
-
- /* If a Tx command is being handled and it isn't in the actual
- * command queue then there a command routing bug has been introduced
- * in the queue management code. */
- WARN_ON(txq_id != IWL_CMD_QUEUE_NUM);
- if (txq_id != IWL_CMD_QUEUE_NUM) {
- IWL_ERROR("Kernel BUG! Please report below info:\n");
- IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
- txq_id, pkt->hdr.cmd);
- }
-
- cmd_index = get_next_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index,
- is_huge);
- cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
-
- /* Input error checking is done when commands are added to queue. */
- if (cmd->meta.flags & CMD_WANT_SKB) {
- /* FIXME: we use cmd->meta.magic to indicate the
- * memory cmd->meta.source points to is still valid or
- * not at this point since caller may pass a local
- * variable to us and returned before we get here.
- * In this case, caller must ensure the ->magic field
- * is set correctly to indicate the availability of the
- * pointer cmd->meta.source. */
- if (cmd->meta.source->magic == CMD_VAR_MAGIC) {
- cmd->meta.source->u.skb = rxb->skb;
- cmd->meta.source->magic = 0;
- rxb->skb = NULL;
- }
- } else if (cmd->meta.u.callback &&
- !cmd->meta.u.callback(priv, cmd, rxb->skb))
- rxb->skb = NULL;
-
- iwl_tx_queue_reclaim(priv, txq_id, index);
-
- if (!(cmd->meta.flags & CMD_ASYNC)) {
- priv->status &= ~STATUS_HCMD_ACTIVE;
- wake_up_interruptible(&priv->wait_command_queue);
- }
-}
-
-/************************** RX-FUNCTIONS ****************************/
-/*
- * Rx theory of operation
- *
- * The host allocates 32 DMA target addresses and passes the host address
- * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
- * 0 to 31
- *
- * Rx Queue Indexes
- * The host/firmware share two index registers for managing the Rx buffers.
- *
- * The READ index maps to the first position that the firmware may be writing
- * to -- the driver can read up to (but not including) this position and get
- * good data.
- * The READ index is managed by the firmware once the card is enabled.
- *
- * The WRITE index maps to the last position the driver has read from -- the
- * position preceding WRITE is the last slot the firmware can place a packet.
- *
- * The queue is empty (no good data) if WRITE = READ - 1, and is full if
- * WRITE = READ.
- *
- * During initialization the host sets up the READ queue position to the first
- * INDEX position, and WRITE to the last (READ - 1 wrapped)
- *
- * When the firmware places a packet in a buffer it will advance the READ index
- * and fire the RX interrupt. The driver can then query the READ index and
- * process as many packets as possible, moving the WRITE index forward as it
- * resets the Rx queue buffers with new memory.
- *
- * The management in the driver is as follows:
- * + A list of pre-allocated SKBs is stored in ipw->rxq->rx_free. When
- * ipw->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
- * to replensish the ipw->rxq->rx_free.
- * + In iwl_rx_replenish (scheduled) if 'processed' != 'read' then the
- * ipw->rxq is replenished and the READ INDEX is updated (updating the
- * 'processed' and 'read' driver indexes as well)
- * + A received packet is processed and handed to the kernel network stack,
- * detached from the ipw->rxq. The driver 'processed' index is updated.
- * + The Host/Firmware ipw->rxq is replenished at tasklet time from the rx_free
- * list. If there are no allocated buffers in ipw->rxq->rx_free, the READ
- * INDEX is not incremented and ipw->status(RX_STALLED) is set. If there
- * were enough free buffers and RX_STALLED is set it is cleared.
- *
- *
- * Driver sequence:
- *
- * iwl_rx_queue_alloc() Allocates rx_free
- * iwl_rx_replenish() Replenishes rx_free list from rx_used, and calls
- * iwl_rx_queue_restock
- * iwl_rx_queue_restock() Moves available buffers from rx_free into Rx
- * queue, updates firmware pointers, and updates
- * the WRITE index. If insufficient rx_free buffers
- * are available, schedules iwl_rx_replenish
- *
- * -- enable interrupts --
- * ISR - iwl_rx() Detach iwl_rx_mem_buffers from pool up to the
- * READ INDEX, detaching the SKB from the pool.
- * Moves the packet buffer from queue to rx_used.
- * Calls iwl_rx_queue_restock to refill any empty
- * slots.
- * ...
- *
- */
-
-/**
- * iwl_rx_queue_space - Return number of free slots available in queue.
- */
-static int iwl_rx_queue_space(const struct iwl_rx_queue *q)
-{
- int s = q->read - q->write;
- if (s <= 0)
- s += RX_QUEUE_SIZE;
- /* keep some buffer to not confuse full and empty queue */
- s -= 2;
- if (s < 0)
- s = 0;
- return s;
-}
-
-/**
- * iwl_rx_queue_update_write_ptr - Update the write pointer for the RX queue
- *
- * NOTE: This function has 3945 and 4965 specific code sections
- * but is declared in base due to the majority of the
- * implementation being the same (only a numeric constant is
- * different)
- *
- */
-int iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, struct iwl_rx_queue *q)
-{
- u32 reg = 0;
- int rc = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&q->lock, flags);
-
- if (q->need_update == 0)
- goto exit_unlock;
-
- if (priv->status & STATUS_POWER_PMI) {
- reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
-
- if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
- iwl_set_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
- goto exit_unlock;
- }
-
- rc = iwl_grab_restricted_access(priv);
- if (rc)
- goto exit_unlock;
-
- iwl_write_restricted(priv,
- FH_RSCSR_CHNL0_WPTR, q->write & ~0x7);
- iwl_release_restricted_access(priv);
- } else {
- iwl_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write & ~0x7);
- }
-
- q->need_update = 0;
-
- exit_unlock:
- spin_unlock_irqrestore(&q->lock, flags);
- return rc;
-}
-
-/**
- * iwl_rx_queue_restock - refill RX queue from pre-allocated pool
- *
- * If there are slots in the RX queue that need to be restocked,
- * and we have free pre-allocated buffers, fill the ranks as much
- * as we can pulling from rx_free.
- *
- * This moves the 'write' index forward to catch up with 'processed', and
- * also updates the memory address in the firmware to reference the new
- * target buffer.
- */
-int iwl_rx_queue_restock(struct iwl_priv *priv)
-{
- struct iwl_rx_queue *rxq = &priv->rxq;
- struct list_head *element;
- struct iwl_rx_mem_buffer *rxb;
- unsigned long flags;
- int counter = 0, write, rc;
-
- spin_lock_irqsave(&rxq->lock, flags);
- write = rxq->write & ~0x7;
- while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
- element = rxq->rx_free.next;
- rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
- list_del(element);
- ((u32 *) rxq->bd)[rxq->write] =
- iwl_dma_addr2rbd_ptr(priv, rxb->dma_addr);
- rxq->queue[rxq->write] = rxb;
- rxq->write = (rxq->write + 1) % RX_QUEUE_SIZE;
- rxq->free_count--;
- counter++;
- }
- spin_unlock_irqrestore(&rxq->lock, flags);
- /* If the pre-allocated buffer pool is dropping low, schedule to
- * refill it */
-
- if (rxq->free_count <= RX_LOW_WATERMARK)
- queue_work(priv->workqueue, &priv->rx_replenish);
-
- counter = iwl_rx_queue_space(rxq);
- /* If we've added more space for the firmware to place data, tell it */
- if ((write != (rxq->write & ~0x7) || (rxq->write < write))
- || (abs(rxq->write - rxq->read) > 7)) {
- spin_lock_irqsave(&rxq->lock, flags);
- rxq->need_update = 1;
- spin_unlock_irqrestore(&rxq->lock, flags);
- rc = iwl_rx_queue_update_write_ptr(priv, rxq);
- if (rc)
- return rc;
- }
-
- return 0;
-}
-
-/**
- * iwl_rx_replensih - Move all used packet from rx_used to rx_free
- *
- * When moving to rx_free an SKB is allocated for the slot.
- *
- * Also restock the Rx queue via iwl_rx_queue_restock.
- * This is called as a scheduled work item (except for during intialization)
- */
-void iwl_rx_replenish(void *data, u8 do_lock)
-{
- struct iwl_priv *priv = data;
- struct iwl_rx_queue *rxq = &priv->rxq;
- struct list_head *element;
- struct iwl_rx_mem_buffer *rxb;
- unsigned long flags = 0;
-
- spin_lock_irqsave(&rxq->lock, flags);
- while (!list_empty(&rxq->rx_used)) {
- element = rxq->rx_used.next;
- rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
- rxb->skb =
- alloc_skb(IWL_RX_BUF_SIZE, __GFP_NOWARN | GFP_ATOMIC);
- if (!rxb->skb) {
- if (net_ratelimit())
- printk(KERN_CRIT DRV_NAME
- ": Can not allocate SKB buffers\n");
- /* We don't reschedule replenish work here -- we will
- * call the restock method and if it still needs
- * more buffers it will schedule replenish */
- break;
- }
- priv->alloc_rxb_skb++;
- list_del(element);
- rxb->dma_addr =
- pci_map_single(priv->pci_dev, rxb->skb->data,
- IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
- list_add_tail(&rxb->list, &rxq->rx_free);
- rxq->free_count++;
- }
- spin_unlock_irqrestore(&rxq->lock, flags);
-
- if (do_lock)
- spin_lock_irqsave(&priv->lock, flags);
- iwl_rx_queue_restock(priv);
- if (do_lock)
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
- * If an SKB has been detached, the POOL needs to have it's SKB set to NULL
- * This free routine walks the list of POOL entries and if SKB is set to
- * non NULL it is unmapped and freed
- */
-void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
-{
- int i;
- for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
- if (rxq->pool[i].skb != NULL) {
- pci_unmap_single(priv->pci_dev,
- rxq->pool[i].dma_addr,
- IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
- dev_kfree_skb(rxq->pool[i].skb);
- }
- }
-
- pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
- rxq->dma_addr);
- rxq->bd = NULL;
-}
-
-int iwl_rx_queue_alloc(struct iwl_priv *priv)
-{
- struct iwl_rx_queue *rxq = &priv->rxq;
- struct pci_dev *dev = priv->pci_dev;
- int i;
-
- spin_lock_init(&rxq->lock);
- INIT_LIST_HEAD(&rxq->rx_free);
- INIT_LIST_HEAD(&rxq->rx_used);
- rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr);
- if (!rxq->bd)
- return -ENOMEM;
- /* Fill the rx_used queue with _all_ of the Rx buffers */
- for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
- list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
- /* Set us so that we have processed and used all buffers, but have
- * not restocked the Rx queue with fresh buffers */
- rxq->read = rxq->write = 0;
- rxq->free_count = 0;
- rxq->need_update = 0;
- return 0;
-}
-
-void iwl_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
-{
- unsigned long flags;
- int i;
- spin_lock_irqsave(&rxq->lock, flags);
- INIT_LIST_HEAD(&rxq->rx_free);
- INIT_LIST_HEAD(&rxq->rx_used);
- /* Fill the rx_used queue with _all_ of the Rx buffers */
- for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
- /* In the reset function, these buffers may have been allocated
- * to an SKB, so we need to unmap and free potential storage */
- if (rxq->pool[i].skb != NULL) {
- pci_unmap_single(priv->pci_dev,
- rxq->pool[i].dma_addr,
- IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
- priv->alloc_rxb_skb--;
- dev_kfree_skb(rxq->pool[i].skb);
- rxq->pool[i].skb = NULL;
- }
- list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
- }
-
- /* Set us so that we have processed and used all buffers, but have
- * not restocked the Rx queue with fresh buffers */
- rxq->read = rxq->write = 0;
- rxq->free_count = 0;
- spin_unlock_irqrestore(&rxq->lock, flags);
-}
-
-/* Convert linear signal-to-noise ratio into dB */
-u8 ratio2dB[100] = {
-/* 0 1 2 3 4 5 6 7 8 9 */
- 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
- 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
- 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
- 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
- 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
- 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
- 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
- 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
- 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
- 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
-};
-
-/* Calculates a relative dB value from a ratio of linear
- * (i.e. not dB) signal levels.
- * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
-int iwl_calc_db_from_ratio(int sig_ratio)
-{
- /* Anything above 1000:1 just report as 60 dB */
- if (sig_ratio > 1000)
- return 60;
-
- /* Above 100:1, divide by 10 and use table,
- * add 20 dB to make up for divide by 10 */
- if (sig_ratio > 100)
- return (20 + (int)ratio2dB[sig_ratio/10]);
-
- /* We shouldn't see this */
- if (sig_ratio < 1)
- return 0;
-
- /* Use table for ratios 1:1 - 99:1 */
- return (int)ratio2dB[sig_ratio];
-}
-
-#define PERFECT_RSSI (-20) /* dBm */
-#define WORST_RSSI (-95) /* dBm */
-#define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
-
-/* Calculate an indication of rx signal quality (a percentage, not dBm!).
- * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
- * about formulas used below. */
-int iwl_calc_sig_qual(int rssi_dbm, int noise_dbm)
-{
- int sig_qual;
- int degradation = PERFECT_RSSI - rssi_dbm;
-
- /* If we get a noise measurement, use signal-to-noise ratio (SNR)
- * as indicator; formula is (signal dbm - noise dbm).
- * SNR at or above 40 is a great signal (100%).
- * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
- * Weakest usable signal is usually 10 - 15 dB SNR. */
- if (noise_dbm) {
- if (rssi_dbm - noise_dbm >= 40)
- return 100;
- else if (rssi_dbm < noise_dbm)
- return 0;
- sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
-
- /* Else use just the signal level.
- * This formula is a least squares fit of data points collected and
- * compared with a reference system that had a percentage (%) display
- * for signal quality. */
- } else {
- sig_qual =
- (100 * (RSSI_RANGE * RSSI_RANGE) -
- degradation * (15 * RSSI_RANGE + 62 * degradation)) /
- (RSSI_RANGE * RSSI_RANGE);
- }
- if (sig_qual > 100)
- sig_qual = 100;
- else if (sig_qual < 1)
- sig_qual = 0;
- return sig_qual;
-}
-
-/**
- * iwl_rx_handle - Main entry function for receiving responses from the uCode
- *
- * Uses the priv->rx_handlers callback function array to invoke
- * the appropriate handlers including command response and 802.11
- * frame availability.
- */
-static void iwl_rx_handle(struct iwl_priv *priv)
-{
- struct iwl_rx_mem_buffer *rxb;
- struct iwl_rx_packet *pkt;
- struct iwl_rx_queue *rxq = &priv->rxq;
- u32 r, i;
- int reclaim;
- unsigned long flags;
-
- r = iwl_hw_get_rx_read(priv);
- i = rxq->read;
-
- while (i != r) {
- rxb = rxq->queue[i];
-
- /* If an RXB doesn't have a queue slot associated with it
- * then a bug has been introduced in the queue refilling
- * routines -- catch it here */
- BUG_ON(rxb == NULL);
-
- rxq->queue[i] = NULL;
-
- pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
- IWL_RX_BUF_SIZE,
- PCI_DMA_FROMDEVICE);
- pkt = (struct iwl_rx_packet *)rxb->skb->data;
-
- /* need to reclaim cmd buffer(s) */
- reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
-#if IWL == 4965
- (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
-#endif
- (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
- (pkt->hdr.cmd != REPLY_TX);
-
- /* Based on type of command response or notification,
- * handle those that need handling via function in
- * rx_handlers table. See iwl_setup_rx_handlers() */
- if (priv->rx_handlers[pkt->hdr.cmd]) {
- priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
- IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR,
- "r = %d, i = %d, rx_handler %s\n", r, i,
- get_cmd_string(pkt->hdr.cmd));
- } else {
- /* No handling needed */
- IWL_DEBUG_HC("UNHANDLED - #0x%02x %s\n",
- pkt->hdr.cmd,
- get_cmd_string(pkt->hdr.cmd));
- }
-
- if (reclaim) {
- /* Invoke any callbacks, transfer the skb to
- * caller, and fire off the (possibly) blocking
- * iwl_send_cmd() via as we reclaim the queue... */
- if (rxb && rxb->skb)
- iwl_tx_cmd_complete(priv, rxb);
- else
- IWL_WARNING("Claim null rxb?\n");
- }
-
- /* For now we just don't re-use anything. We can tweak this
- * later to try and re-use notification packets and SKBs that
- * fail to Rx correctly */
- if (rxb->skb != NULL) {
- priv->alloc_rxb_skb--;
- dev_kfree_skb_any(rxb->skb);
- rxb->skb = NULL;
- }
-
- pci_unmap_single(priv->pci_dev, rxb->dma_addr,
- IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
- spin_lock_irqsave(&rxq->lock, flags);
- list_add_tail(&rxb->list, &priv->rxq.rx_used);
- spin_unlock_irqrestore(&rxq->lock, flags);
- i = (i + 1) % RX_QUEUE_SIZE;
- }
-
- /* Backtrack one entry */
- priv->rxq.read = i;
-
- /* is a lot of queue space refill up right away
- * so ucode wont assert */
- if (iwl_rx_queue_space(rxq) > RX_SPACE_HIGH_MARK)
- iwl_rx_replenish(priv, 0);
- else
- iwl_rx_queue_restock(priv);
-}
-
-int iwl_tx_queue_update_write_ptr(struct iwl_priv *priv,
- struct iwl_tx_queue *txq)
-{
- u32 reg = 0;
- int rc = 0;
- int txq_id = txq->q.id;
-
- if (txq->need_update == 0)
- return rc;
-
- /* if we're trying to save power */
- if (priv->status & STATUS_POWER_PMI) {
- /* wake up nic if it's powered down ...
- * uCode will wake up, and interrupt us again, so next
- * time we'll skip this part. */
- reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
-
- if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
- IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg);
- iwl_set_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
- return rc;
- }
-
- /* restore this queue's parameters in nic hardware. */
- rc = iwl_grab_restricted_access(priv);
- if (rc)
- return rc;
- iwl_write_restricted(priv, HBUS_TARG_WRPTR,
- txq->q.first_empty | (txq_id << 8));
- iwl_release_restricted_access(priv);
-
- /* else not in power-save mode, uCode will never sleep when we're
- * trying to tx (during RFKILL, we're not trying to tx). */
- } else {
- iwl_write32(priv, HBUS_TARG_WRPTR,
- txq->q.first_empty | (txq_id << 8));
- }
-
- txq->need_update = 0;
-
- return rc;
-}
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-
-static void iwl_print_rx_config_cmd(struct iwl_rxon_cmd *rxon)
-{
- IWL_DEBUG_RADIO("RX CONFIG:\n");
- printk_buf(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
- IWL_DEBUG_RADIO("u16 channel: 0x%x\n", rxon->channel);
- IWL_DEBUG_RADIO("u32 flags: 0x%08X " BIT_FMT32 "\n",
- rxon->flags, BIT_ARG32(rxon->flags));
- IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x " BIT_FMT32 "\n",
- rxon->filter_flags, BIT_ARG32(rxon->filter_flags));
- IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
- IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x " BIT_FMT8 "\n",
- rxon->ofdm_basic_rates,
- BIT_ARG8(rxon->ofdm_basic_rates));
- IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x " BIT_FMT8 "\n",
- rxon->cck_basic_rates, BIT_ARG8(rxon->cck_basic_rates));
- IWL_DEBUG_RADIO("u8[6] node_addr: " MAC_FMT "\n",
- MAC_ARG(rxon->node_addr));
- IWL_DEBUG_RADIO("u8[6] bssid_addr: " MAC_FMT "\n",
- MAC_ARG(rxon->bssid_addr));
- IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", rxon->assoc_id);
-}
-
-#endif
-
-static void iwl_enable_interrupts(struct iwl_priv *priv)
-{
- IWL_DEBUG_ISR("Enabling interrupts\n");
- priv->status |= STATUS_INT_ENABLED;
- iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
-}
-
-static inline void iwl_disable_interrupts(struct iwl_priv *priv)
-{
- priv->status &= ~STATUS_INT_ENABLED;
-
- /* disable interrupts from uCode/NIC to host */
- iwl_write32(priv, CSR_INT_MASK, 0x00000000);
-
- /* acknowledge/clear/reset any interrupts still pending
- * from uCode or flow handler (Rx/Tx DMA) */
- iwl_write32(priv, CSR_INT, 0xffffffff);
- iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
- IWL_DEBUG_ISR("Disabled interrupts\n");
-}
-
-static const char *desc_lookup(int i)
-{
- switch (i) {
- case 1:
- return "FAIL";
- case 2:
- return "BAD_PARAM";
- case 3:
- return "BAD_CHECKSUM";
- case 4:
- return "NMI_INTERRUPT";
- case 5:
- return "SYSASSERT";
- case 6:
- return "FATAL_ERROR";
- }
-
- return "UNKNOWN";
-}
-
-#define ERROR_START_OFFSET (1 * sizeof(u32))
-#define ERROR_ELEM_SIZE (7 * sizeof(u32))
-
-static void iwl_dump_nic_error_log(struct iwl_priv *priv)
-{
-#if IWL == 3945
- u32 i;
-#else /* IWL == 4965 */
- u32 data2, line;
-#endif
- u32 desc, time, count, base, data1;
- u32 blink1, blink2, ilink1, ilink2;
- int rc;
-
- base = priv->card_alive.error_event_table_ptr;
-
- if (!VALID_RTC_DATA_ADDR(base)) {
- IWL_ERROR("Not valid error log pointer 0x%08X\n", base);
- return;
- }
-
- rc = iwl_grab_restricted_access(priv);
- if (rc) {
- IWL_WARNING("Can not read from adapter at this time.\n");
- return;
- }
-
- count = iwl_read_restricted_mem(priv, base);
-
- if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
- IWL_ERROR("Start IWL Error Log Dump:\n");
- IWL_ERROR("Status: 0x%08X, Config: %08X count: %d\n",
- priv->status, priv->config, count);
- }
-
-#if IWL == 3945
- IWL_ERROR("Desc Time asrtPC blink2 "
- "ilink1 nmiPC Line\n");
- for (i = ERROR_START_OFFSET;
- i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET;
- i += ERROR_ELEM_SIZE) {
- desc = iwl_read_restricted_mem(priv, base + i);
- time =
- iwl_read_restricted_mem(priv, base + i + 1 * sizeof(u32));
- blink1 =
- iwl_read_restricted_mem(priv, base + i + 2 * sizeof(u32));
- blink2 =
- iwl_read_restricted_mem(priv, base + i + 3 * sizeof(u32));
- ilink1 =
- iwl_read_restricted_mem(priv, base + i + 4 * sizeof(u32));
- ilink2 =
- iwl_read_restricted_mem(priv, base + i + 5 * sizeof(u32));
- data1 =
- iwl_read_restricted_mem(priv, base + i + 6 * sizeof(u32));
-
- IWL_ERROR
- ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
- desc_lookup(desc), desc, time, blink1, blink2,
- ilink1, ilink2, data1);
- }
-#else /* 4965 Error format */
- desc = iwl_read_restricted_mem(priv, base + 1 * sizeof(u32));
- blink1 = iwl_read_restricted_mem(priv, base + 3 * sizeof(u32));
- blink2 = iwl_read_restricted_mem(priv, base + 4 * sizeof(u32));
- ilink1 = iwl_read_restricted_mem(priv, base + 5 * sizeof(u32));
- ilink2 = iwl_read_restricted_mem(priv, base + 6 * sizeof(u32));
- data1 = iwl_read_restricted_mem(priv, base + 7 * sizeof(u32));
- data2 = iwl_read_restricted_mem(priv, base + 8 * sizeof(u32));
- line = iwl_read_restricted_mem(priv, base + 9 * sizeof(u32));
- time = iwl_read_restricted_mem(priv, base + 11 * sizeof(u32));
-
- IWL_ERROR("Desc Time "
- "data1 data2 line\n");
- IWL_ERROR
- ("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
- desc_lookup(desc), desc, time, data1, data2, line);
- IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
- IWL_ERROR
- ("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2, ilink1, ilink2);
-
-#endif /* IWL 3945 */
-
- iwl_release_restricted_access(priv);
-
-}
-
-#define EVENT_START_OFFSET (4 * sizeof(u32))
-
-/**
- * iwl_print_event_log - Dump error event log to syslog
- *
- * NOTE: Must be called with iwl_grab_restricted_access() already obtained!
- */
-static void iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
- u32 num_events, u32 mode)
-{
- u32 i;
- u32 base; /* SRAM byte address of event log header */
- u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
- u32 ptr; /* SRAM byte address of log data */
- u32 ev, time, data; /* event log data */
-
- if (num_events == 0)
- return;
-
- base = priv->card_alive.log_event_table_ptr;
-
- if (mode == 0)
- event_size = 2 * sizeof(u32);
- else
- event_size = 3 * sizeof(u32);
-
- ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
-
- /* "time" is actually "data" for mode 0 (no timestamp).
- * place event id # at far right for easier visual parsing. */
- for (i = 0; i < num_events; i++) {
- ev = iwl_read_restricted_mem(priv, ptr);
- ptr += sizeof(u32);
- time = iwl_read_restricted_mem(priv, ptr);
- ptr += sizeof(u32);
- if (mode == 0) {
- IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */
- } else {
- data = iwl_read_restricted_mem(priv, ptr);
- ptr += sizeof(u32);
- IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev);
- }
- }
-}
-
-static void iwl_dump_nic_event_log(struct iwl_priv *priv)
-{
- int rc;
- u32 base; /* SRAM byte address of event log header */
- u32 capacity; /* event log capacity in # entries */
- u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
- u32 num_wraps; /* # times uCode wrapped to top of log */
- u32 next_entry; /* index of next entry to be written by uCode */
- u32 size; /* # entries that we'll print */
-
- base = priv->card_alive.log_event_table_ptr;
- if (!VALID_RTC_DATA_ADDR(base)) {
- IWL_ERROR("Invalid event log pointer 0x%08X\n", base);
- return;
- }
-
- rc = iwl_grab_restricted_access(priv);
- if (rc) {
- IWL_WARNING("Can not read from adapter at this time.\n");
- return;
- }
-
- /* event log header */
- capacity = iwl_read_restricted_mem(priv, base);
- mode = iwl_read_restricted_mem(priv, base + (1 * sizeof(u32)));
- num_wraps = iwl_read_restricted_mem(priv, base + (2 * sizeof(u32)));
- next_entry = iwl_read_restricted_mem(priv, base + (3 * sizeof(u32)));
-
- size = num_wraps ? capacity : next_entry;
-
- /* bail out if nothing in log */
- if (size == 0) {
- IWL_ERROR("Start IPW Event Log Dump: nothing in log\n");
- iwl_release_restricted_access(priv);
- return;
- }
-
- IWL_ERROR("Start IPW Event Log Dump: display count %d, wraps %d\n",
- size, num_wraps);
-
- /* if uCode has wrapped back to top of log, start at the oldest entry,
- * i.e the next one that uCode would fill. */
- if (num_wraps) {
- iwl_print_event_log(priv, next_entry,
- capacity - next_entry, mode);
- }
-
- /* (then/else) start at top of log */
- iwl_print_event_log(priv, 0, next_entry, mode);
-
- iwl_release_restricted_access(priv);
-}
-
-/**
- * iwl_irq_handle_error - called for HW or SW error interrupt from card
- */
-static void iwl_irq_handle_error(struct iwl_priv *priv)
-{
- /* Set the FW error flag -- cleared on iwl_down */
- priv->status |= STATUS_FW_ERROR;
-
- /* Cancel currently queued command. */
- priv->status &= ~STATUS_HCMD_ACTIVE;
-
- IWL_WARNING("RX write index: %d read index %d\n",
- priv->rxq.write, priv->rxq.read);
-
-#ifdef CONFIG_IWLWIFI_DEBUG
- if (iwl_debug_level & IWL_DL_FW_ERRORS) {
- iwl_dump_nic_error_log(priv);
- iwl_dump_nic_event_log(priv);
- iwl_print_rx_config_cmd(&priv->staging_rxon);
- }
-#endif
-
- wake_up_interruptible(&priv->wait_command_queue);
-
- /* Keep the restart process from trying to send host
- * commands by clearing the INIT status bit */
- priv->status &= ~STATUS_READY;
- if (!(priv->status & STATUS_EXIT_PENDING)) {
- IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS,
- "Restarting adapter due to uCode error.\n");
- if (iwl_is_associated(priv)) {
- memcpy(&priv->recovery_rxon, &priv->active_rxon,
- sizeof(priv->recovery_rxon));
- priv->error_recovering = 1;
- }
-
- queue_work(priv->workqueue, &priv->restart);
- }
-}
-
-static void iwl_error_recovery(struct iwl_priv *priv)
-{
- unsigned long flags;
-
- memcpy(&priv->staging_rxon, &priv->recovery_rxon,
- sizeof(priv->staging_rxon));
- priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl_commit_rxon(priv);
-
- iwl_rxon_add_station(priv, priv->bssid, 1);
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->assoc_id = priv->staging_rxon.assoc_id;
- priv->error_recovering = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-static void iwl_irq_tasklet(struct iwl_priv *priv)
-{
- u32 inta, inta_mask, handled = 0;
- u32 inta_fh;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Ack/clear/reset pending uCode interrupts.
- * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
- * and will clear only when CSR_FH_INT_STATUS gets cleared. */
- inta = iwl_read32(priv, CSR_INT);
- iwl_write32(priv, CSR_INT, inta);
-
- /* Ack/clear/reset pending flow-handler (DMA) interrupts.
- * Any new interrupts that happen after this, either while we're
- * in this tasklet, or later, will show up in next ISR/tasklet. */
- inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
- iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
-
- inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
- IWL_DEBUG_ISR
- ("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
- inta, inta_mask, inta_fh);
-
- /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
- * atomic, make sure that inta covers all the interrupts that
- * we've discovered, even if FH interrupt came in just after
- * reading CSR_INT. */
- if (inta_fh & FH_INT_RX_MASK)
- inta |= BIT_INT_FH_RX;
- if (inta_fh & FH_INT_TX_MASK)
- inta |= BIT_INT_FH_TX;
-
- /* Now service all interrupt bits discovered above. */
- if (inta & BIT_INT_ERR) {
- IWL_ERROR("Microcode HW error detected. Restarting.\n");
-
- /* Tell the device to stop sending interrupts */
- iwl_disable_interrupts(priv);
-
- iwl_irq_handle_error(priv);
-
- handled |= BIT_INT_ERR;
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return;
- }
-
- if (inta & BIT_INT_RF_KILL) {
- int hw_rf_kill = 0;
- if (!(iwl_read32(priv, CSR_GP_CNTRL) &
- CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
- hw_rf_kill = 1;
-
- IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL | IWL_DL_ISR,
- "RF_KILL bit toggled to %s.\n",
- hw_rf_kill ? "disable radio":"enable radio");
-
- /* Queue restart only if RF_KILL switch was set to "kill"
- * when we loaded driver, and is now set to "enable".
- * After we're Alive, RF_KILL gets handled by
- * iwl_rx_card_state_notif() */
- if (!hw_rf_kill && !(priv->status & STATUS_ALIVE))
- queue_work(priv->workqueue, &priv->restart);
-
- handled |= BIT_INT_RF_KILL;
- }
-
- if (inta & BIT_INT_CT_KILL) {
- IWL_ERROR("Microcode CT kill error detected.\n");
- handled |= BIT_INT_CT_KILL;
- }
-
- if (inta & BIT_INT_SWERROR) {
- IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
- inta);
- iwl_irq_handle_error(priv);
- handled |= BIT_INT_SWERROR;
- }
-
- if (inta & BIT_INT_WAKEUP) {
- IWL_DEBUG_ISR("Wakeup interrupt\n");
- iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
- iwl_tx_queue_update_write_ptr(priv, &priv->txq[0]);
- iwl_tx_queue_update_write_ptr(priv, &priv->txq[1]);
- iwl_tx_queue_update_write_ptr(priv, &priv->txq[2]);
- iwl_tx_queue_update_write_ptr(priv, &priv->txq[3]);
- iwl_tx_queue_update_write_ptr(priv, &priv->txq[4]);
- iwl_tx_queue_update_write_ptr(priv, &priv->txq[5]);
-
- handled |= BIT_INT_WAKEUP;
- }
-
- /* Alive notification via Rx interrupt will do the real work */
- if (inta & BIT_INT_ALIVE) {
- IWL_DEBUG_ISR("Alive interrupt\n");
- handled |= BIT_INT_ALIVE;
- }
-
- /* All uCode command responses, including Tx command responses,
- * Rx "responses" (frame-received notification), and other
- * notifications from uCode come through here*/
- if (inta & (BIT_INT_FH_RX | BIT_INT_SW_RX)) {
- iwl_rx_handle(priv);
- handled |= (BIT_INT_FH_RX | BIT_INT_SW_RX);
- }
-
- if (inta & BIT_INT_FH_TX) {
- IWL_DEBUG_ISR("Tx interrupt\n");
-
-#if IWL == 3945
- iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6));
- if (!iwl_grab_restricted_access(priv)) {
- iwl_write_restricted(priv,
- FH_TCSR_CREDIT
- (ALM_FH_SRVC_CHNL), 0x0);
- iwl_release_restricted_access(priv);
- }
-#endif /* IWL == 3945 */
- handled |= BIT_INT_FH_TX;
- }
-
- if (inta & ~handled)
- IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
-
- if (inta & ~CSR_INI_SET_MASK) {
- IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
- inta & ~CSR_INI_SET_MASK);
- IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh);
- }
-
- /* Re-enable all interrupts */
- iwl_enable_interrupts(priv);
-
-#ifdef CONFIG_IWLWIFI_DEBUG
- if (iwl_debug_level & (IWL_DL_ISR)) {
- inta = iwl_read32(priv, CSR_INT);
- inta_mask = iwl_read32(priv, CSR_INT_MASK);
- inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
- IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
- "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
- }
-#endif
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-static irqreturn_t iwl_isr(int irq, void *data, struct pt_regs *regs)
-{
- struct iwl_priv *priv = data;
- u32 inta, inta_mask;
- u32 inta_fh;
- if (!priv)
- return IRQ_NONE;
-
- spin_lock(&priv->lock);
-
- /* Disable (but don't clear!) interrupts here to avoid
- * back-to-back ISRs and sporadic interrupts from our NIC.
- * If we have something to service, the tasklet will re-enable ints.
- * If we *don't* have something, we'll re-enable before leaving here. */
- inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
- iwl_write32(priv, CSR_INT_MASK, 0x00000000);
-
- /* Discover which interrupts are active/pending */
- inta = iwl_read32(priv, CSR_INT);
- inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
-
- /* Ignore interrupt if there's nothing in NIC to service.
- * This may be due to IRQ shared with another device,
- * or due to sporadic interrupts thrown from our NIC. */
- if (!inta && !inta_fh) {
- IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
- goto none;
- }
-
- if ((inta == 0xFFFFFFFF) || (inta == 0xa5a5a5a5)
- || (inta == 0x5a5a5a5a)) {
- /* Hardware disappeared */
- IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
- goto none;
- }
-
- IWL_DEBUG_ISR ("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
- inta, inta_mask, inta_fh);
-
- /* iwl_irq_tasklet() will service interrupts and re-enable them */
- tasklet_schedule(&priv->irq_tasklet);
- spin_unlock(&priv->lock);
-
- return IRQ_HANDLED;
-
- none:
- /* re-enable interrupts here since we don't have anything to service. */
- iwl_enable_interrupts(priv);
- spin_unlock(&priv->lock);
- return IRQ_NONE;
-}
-
-/************************** EEPROM BANDS ****************************
- *
- * The iwl_eeprom_band definitions below provide the mapping from the
- * EEPROM contents to the specific channel number supported for each
- * band.
- *
- * For example, iwl_priv->eeprom.band_3_channels[4] from the band_3
- * definition below maps to physical channel 42 in the 5.2GHz spectrum.
- * The specific geography and calibration information for that channel
- * is contained in the eeprom map itself.
- *
- * During init, we copy the eeprom information and channel map
- * information into priv->channel_info_24/52 and priv->channel_map_24/52
- *
- * channel_map_24/52 provides the index in the channel_info array for a
- * given channel. We have to have two separate maps as there is channel
- * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
- * band_2
- *
- * A value of 0xff stored in the channel_map indicates that the channel
- * is not supported by the hardware at all.
- *
- * A value of 0xfe in the channel_map indicates that the channel is not
- * valid for Tx with the current hardware. This means that
- * while the system can tune and receive on a given channel, it may not
- * be able to associate or transmit any frames on that
- * channel. There is no corresponding channel information for that
- * entry.
- *
- *********************************************************************/
-
-/* 2.4 GHz */
-static const u8 iwl_eeprom_band_1[14] = {
- 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
-};
-
-/* 5.2 GHz bands */
-static const u8 iwl_eeprom_band_2[] = {
- 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
-};
-
-static const u8 iwl_eeprom_band_3[] = { /* 5205-5320MHz */
- 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
-};
-
-static const u8 iwl_eeprom_band_4[] = { /* 5500-5700MHz */
- 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
-};
-
-static const u8 iwl_eeprom_band_5[] = { /* 5725-5825MHz */
- 145, 149, 153, 157, 161, 165
-};
-
-#if IWL == 4965
-static u8 iwl_eeprom_band_6[] = { /* 2.4 FAT channel */
- 1, 2, 3, 4, 5, 6, 7
-};
-
-static u8 iwl_eeprom_band_7[] = { /* 5.2 FAT channel */
- 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
-};
-#endif
-
-static void iwl_init_band_reference(const struct iwl_priv *priv, int band,
- int *eeprom_ch_count,
- const struct iwl_eeprom_channel
- **eeprom_ch_info,
- const u8 **eeprom_ch_index)
-{
- switch (band) {
- case 1: /* 2.4GHz band */
- *eeprom_ch_count = GLOBAL_ARRAY_SIZE(iwl_eeprom_band_1);
- *eeprom_ch_info = priv->eeprom.band_1_channels;
- *eeprom_ch_index = iwl_eeprom_band_1;
- break;
- case 2: /* 5.2GHz band */
- *eeprom_ch_count = GLOBAL_ARRAY_SIZE(iwl_eeprom_band_2);
- *eeprom_ch_info = priv->eeprom.band_2_channels;
- *eeprom_ch_index = iwl_eeprom_band_2;
- break;
- case 3: /* 5.2GHz band */
- *eeprom_ch_count = GLOBAL_ARRAY_SIZE(iwl_eeprom_band_3);
- *eeprom_ch_info = priv->eeprom.band_3_channels;
- *eeprom_ch_index = iwl_eeprom_band_3;
- break;
- case 4: /* 5.2GHz band */
- *eeprom_ch_count = GLOBAL_ARRAY_SIZE(iwl_eeprom_band_4);
- *eeprom_ch_info = priv->eeprom.band_4_channels;
- *eeprom_ch_index = iwl_eeprom_band_4;
- break;
- case 5: /* 5.2GHz band */
- *eeprom_ch_count = GLOBAL_ARRAY_SIZE(iwl_eeprom_band_5);
- *eeprom_ch_info = priv->eeprom.band_5_channels;
- *eeprom_ch_index = iwl_eeprom_band_5;
- break;
-#if IWL == 4965
- case 6:
- *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_6);
- *eeprom_ch_info = priv->eeprom.band_24_channels;
- *eeprom_ch_index = iwl_eeprom_band_6;
- break;
- case 7:
- *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_7);
- *eeprom_ch_info = priv->eeprom.band_52_channels;
- *eeprom_ch_index = iwl_eeprom_band_7;
- break;
-#endif
- default:
- BUG();
- return;
- }
-}
-
-const struct iwl_channel_info *iwl_get_channel_info(const struct iwl_priv *priv,
- int phymode, int channel)
-{
- int i;
-
- switch (phymode) {
- case MODE_ATHEROS_TURBO:
- case MODE_IEEE80211A:
- for (i = 14; i < priv->channel_count; i++) {
- if (priv->channel_info[i].channel == channel)
- return &priv->channel_info[i];
- }
- break;
-
- case MODE_IEEE80211B:
- case MODE_IEEE80211G:
- case MODE_ATHEROS_TURBOG:
- if (channel >= 1 && channel <= 14)
- return &priv->channel_info[channel - 1];
- break;
-
- }
-
- return NULL;
-}
-
-#define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
- ? # x " " : "")
-
-static int iwl_init_channel_map(struct iwl_priv *priv)
-{
- int eeprom_ch_count = 0;
- const u8 *eeprom_ch_index = NULL;
- const struct iwl_eeprom_channel *eeprom_ch_info = NULL;
- int band, ch;
- struct iwl_channel_info *ch_info;
-
- if (priv->channel_count) {
- IWL_DEBUG_INFO("Channel map already initialized.\n");
- return 0;
- }
-
- if (priv->eeprom.version < 0x2f) {
- IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
- priv->eeprom.version);
- return -EINVAL;
- }
-
- IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
-
- priv->channel_count =
- GLOBAL_ARRAY_SIZE(iwl_eeprom_band_1) +
- GLOBAL_ARRAY_SIZE(iwl_eeprom_band_2) +
- GLOBAL_ARRAY_SIZE(iwl_eeprom_band_3) +
- GLOBAL_ARRAY_SIZE(iwl_eeprom_band_4) +
- GLOBAL_ARRAY_SIZE(iwl_eeprom_band_5);
-
- IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count);
-
- priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) *
- priv->channel_count, GFP_KERNEL);
- if (!priv->channel_info) {
- IWL_ERROR("Could not allocate channel_info\n");
- priv->channel_count = 0;
- return -ENOMEM;
- }
-
- ch_info = priv->channel_info;
-
- /* Loop through the 5 EEPROM bands adding them in order to the
- * channel map we maintain (that contains additional information than
- * what just in the EEPROM) */
- for (band = 1; band <= 5; band++) {
-
- iwl_init_band_reference(priv, band, &eeprom_ch_count,
- &eeprom_ch_info, &eeprom_ch_index);
-
- /* Loop through each band adding each of the channels */
- for (ch = 0; ch < eeprom_ch_count; ch++) {
- ch_info->channel = eeprom_ch_index[ch];
- ch_info->phymode = (band == 1) ? MODE_IEEE80211B :
- MODE_IEEE80211A;
-
- /* permanently store EEPROM's channel regulatory flags
- * and max power in channel info database. */
- ch_info->eeprom = eeprom_ch_info[ch];
-
- /* Copy the run-time flags so they are there even on
- * invalid channels */
- ch_info->flags = eeprom_ch_info[ch].flags;
-
- if (!(is_channel_valid(ch_info))) {
- IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
- "No Tx\n",
- ch_info->channel,
- ch_info->flags,
- is_channel_a_band(ch_info) ?
- "5.2" : "2.4");
- ch_info++;
- continue;
- }
-
- /* Initialize regulatory-based run-time data */
- ch_info->max_power_avg = ch_info->curr_txpow =
- eeprom_ch_info[ch].max_power_avg;
- ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
- ch_info->min_power = 0;
-
- IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(" BIT_FMT8
- " %ddBm): Ad-Hoc %ssupported\n",
- ch_info->channel,
- is_channel_a_band(ch_info) ?
- "5.2" : "2.4",
- CHECK_AND_PRINT(IBSS),
- CHECK_AND_PRINT(ACTIVE),
- CHECK_AND_PRINT(RADAR),
- CHECK_AND_PRINT(WIDE),
- CHECK_AND_PRINT(NARROW),
- CHECK_AND_PRINT(DFS),
- BIT_ARG8(eeprom_ch_info[ch].flags),
- eeprom_ch_info[ch].
- max_power_avg,
- ((eeprom_ch_info[ch].
- flags & EEPROM_CHANNEL_IBSS)
- && !(eeprom_ch_info[ch].
- flags & EEPROM_CHANNEL_RADAR))
- ? "" : "not ");
-
- /* Set the user_txpower_limit to the highest power
- * supported by any channel */
- if (eeprom_ch_info[ch].max_power_avg >
- priv->user_txpower_limit)
- priv->user_txpower_limit =
- eeprom_ch_info[ch].max_power_avg;
-
- ch_info++;
- }
- }
-#if IWL == 4965
- for (band = 6; band <= 7; band++) {
- int phymode;
- u8 fat_extension_chan;
-
- iwl_init_band_reference(priv, band, &eeprom_ch_count,
- &eeprom_ch_info, &eeprom_ch_index);
-
- phymode = (band == 6) ? MODE_IEEE80211B : MODE_IEEE80211A;
- /* Loop through each band adding each of the channels */
- for (ch = 0; ch < eeprom_ch_count; ch++) {
-
- if ((band == 6) &&
- ((eeprom_ch_index[ch] == 5) ||
- (eeprom_ch_index[ch] == 6) ||
- (eeprom_ch_index[ch] == 7)))
- fat_extension_chan = HT_IE_EXT_CHANNEL_MAX;
- else
- fat_extension_chan = HT_IE_EXT_CHANNEL_ABOVE;
-
- iwl4965_set_fat_chan_info(priv, phymode,
- eeprom_ch_index[ch],
- &(eeprom_ch_info[ch]),
- fat_extension_chan);
-
- iwl4965_set_fat_chan_info(priv, phymode,
- (eeprom_ch_index[ch] + 4),
- &(eeprom_ch_info[ch]),
- HT_IE_EXT_CHANNEL_BELOW);
- }
- }
-#endif
-
- if (iwl3945_txpower_set_from_eeprom(priv))
- return -EIO;
-
- return 0;
-}
-
-/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
- * sending probe req. This should be set long enough to hear probe responses
- * from more than one AP. */
-#define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
-#define IWL_ACTIVE_DWELL_TIME_52 (10)
-
-/* For faster active scanning, scan will move to the next channel if fewer than
- * PLCP_QUIET_THRESH packets are heard on this channel within
- * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
- * time if it's a quiet channel (nothing responded to our probe, and there's
- * no other traffic).
- * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
-#define IWL_PLCP_QUIET_THRESH (1) /* packets */
-#define IWL_ACTIVE_QUIET_TIME (5) /* msec */
-
-/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
- * Must be set longer than active dwell time.
- * For the most reliable scan, set > AP beacon interval (typically 100msec). */
-#define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
-#define IWL_PASSIVE_DWELL_TIME_52 (10)
-#define IWL_PASSIVE_DWELL_BASE (100)
-#define IWL_CHANNEL_TUNE_TIME 5
-
-static inline u16 iwl_get_active_dwell_time(struct iwl_priv *priv, int phymode)
-{
- if ((phymode == MODE_IEEE80211A) ||
- (phymode == MODE_ATHEROS_TURBO))
- return IWL_ACTIVE_DWELL_TIME_52;
- else
- return IWL_ACTIVE_DWELL_TIME_24;
-}
-
-static u16 iwl_get_passive_dwell_time(struct iwl_priv *priv, int phymode)
-{
- u16 active = iwl_get_active_dwell_time(priv, phymode);
- u16 passive = ((phymode != MODE_IEEE80211A) &&
- (phymode != MODE_ATHEROS_TURBO)) ?
- IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
- IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
-
- if (iwl_is_associated(priv)) {
- /* If we're associated, we clamp the maximum passive
- * dwell time to be 98% of the beacon interval (minus
- * 2 * channel tune time) */
- passive = priv->beacon_int;
- if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
- passive = IWL_PASSIVE_DWELL_BASE;
- passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
- }
-
- if (passive <= active)
- passive = active + 1;
-
- return passive;
-}
-
-static int iwl_get_channels_for_scan(struct iwl_priv *priv, int phymode,
- u8 is_active, u8 direct_mask,
- struct iwl_scan_channel *scan_ch)
-{
- const struct ieee80211_channel *channels = NULL;
- const struct ieee80211_hw_mode *hw_mode;
- const struct iwl_channel_info *ch_info;
- u16 passive_dwell = 0;
- u16 active_dwell = 0;
- int added, i;
-
- hw_mode = iwl_get_hw_mode(priv, phymode);
- if (!hw_mode)
- return 0;
-
- channels = hw_mode->channels;
-
- active_dwell = iwl_get_active_dwell_time(priv, phymode);
- passive_dwell = iwl_get_passive_dwell_time(priv, phymode);
-
- for (i = 0, added = 0; i < hw_mode->num_channels; i++) {
- if (channels[i].chan ==
- le16_to_cpu(priv->active_rxon.channel)) {
- if (iwl_is_associated(priv)) {
- IWL_DEBUG_SCAN
- ("Skipping current channel %d\n",
- le16_to_cpu(priv->active_rxon.channel));
- continue;
- }
- } else if (priv->only_active_channel)
- continue;
-
- scan_ch->channel = channels[i].chan;
-
- ch_info = iwl_get_channel_info(priv, phymode, scan_ch->channel);
- if (!is_channel_valid(ch_info)) {
- IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
- scan_ch->channel);
- continue;
- }
-
- if (!is_active || is_channel_passive(ch_info) ||
- !(channels[i].flag & IEEE80211_CHAN_W_ACTIVE_SCAN))
- scan_ch->type = 0; /* passive */
- else
- scan_ch->type = 1; /* active */
-
- if (scan_ch->type & 1)
- scan_ch->type |= (direct_mask << 1);
-
- if (is_channel_narrow(ch_info))
- scan_ch->type |= (1 << 7);
-
- scan_ch->active_dwell = active_dwell;
- scan_ch->passive_dwell = passive_dwell;
-
- /* Set power levels to defaults */
- scan_ch->tpc.dsp_atten = 110;
- /* scan_pwr_info->tpc.dsp_atten; */
-
- /*scan_pwr_info->tpc.tx_gain; */
- if ((phymode == MODE_IEEE80211A) ||
- (phymode == MODE_ATHEROS_TURBO)) {
- scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
- } else {
- scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
- /* NOTE: if we were doing 6Mb OFDM for scans we'd use
- * power level
- scan_ch->tpc.tx_gain = ((1<<5) | (2 << 3)) | 3;
- */
- }
-
- IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
- scan_ch->channel,
- (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
- (scan_ch->type & 1) ?
- active_dwell : passive_dwell);
-
- scan_ch++;
- added++;
- }
-
- IWL_DEBUG_SCAN("total channels to scan %d \n", added);
- return added;
-}
-
-static void iwl_reset_channel_flag(struct iwl_priv *priv)
-{
- int i, j;
- for (i = 0; i < 3; i++) {
- struct ieee80211_hw_mode *hw_mode = (void *)&priv->modes[i];
- for (j = 0; j < hw_mode->num_channels; j++)
- hw_mode->channels[j].flag = hw_mode->channels[j].val;
- }
-}
-
-static void iwl_init_hw_rates(struct iwl_priv *priv,
- struct ieee80211_rate *rates)
-{
- int i;
-
- for (i = 0; i < IWL_RATE_COUNT; i++) {
- rates[i].rate = iwl_rates[i].ieee * 5;
- rates[i].val = i; /* Rate scaling will work on indexes */
- rates[i].val2 = i;
- rates[i].flags = IEEE80211_RATE_SUPPORTED;
- /* Only OFDM have the bits-per-symbol set */
- if ((i <= IWL_LAST_OFDM_RATE) && (i >= IWL_FIRST_OFDM_RATE))
- rates[i].flags |= IEEE80211_RATE_OFDM;
- else {
- /*
- * If CCK 1M then set rate flag to CCK else CCK_2
- * which is CCK | PREAMBLE2
- */
- rates[i].flags |= (iwl_rates[i].plcp == 10) ?
- IEEE80211_RATE_CCK : IEEE80211_RATE_CCK_2;
- }
-
- /* Set up which ones are basic rates... */
- if (IWL_BASIC_RATES_MASK & (1 << i))
- rates[i].flags |= IEEE80211_RATE_BASIC;
- }
-
-#if IWL == 4965
- iwl4965_init_hw_rates(priv, rates);
-#endif
-}
-
-/**
- * iwl_init_geos - Initialize mac80211's geo/channel info based from eeprom
- */
-static int iwl_init_geos(struct iwl_priv *priv)
-{
- struct iwl_channel_info *ch;
- struct ieee80211_hw_mode *modes;
- struct ieee80211_channel *channels;
- struct ieee80211_channel *geo_ch;
- struct ieee80211_rate *rates;
- int i = 0;
-#if IWL == 4965
- enum {
- A = 0,
- B = 1,
- G = 2,
- A_11N = 3,
- G_11N = 4,
- };
- int mode_count = 5;
-#else
- enum {
- A = 0,
- B = 1,
- G = 2,
- };
- int mode_count = 3;
-#endif
-
- if (priv->modes) {
- IWL_DEBUG_INFO("Geography modes already initialized.\n");
- priv->status |= STATUS_GEO_CONFIGURED;
- return 0;
- }
-
- modes = kzalloc(sizeof(struct ieee80211_hw_mode) * mode_count,
- GFP_ATOMIC);
- if (!modes)
- return -ENOMEM;
-
- channels = kzalloc(sizeof(struct ieee80211_channel) *
- priv->channel_count, GFP_ATOMIC);
- if (!channels) {
- kfree(modes);
- return -ENOMEM;
- }
-
- rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_MAX_RATES + 1)),
- GFP_ATOMIC);
- if (!rates) {
- kfree(modes);
- kfree(channels);
- return -ENOMEM;
- }
-
- /* 0 = 802.11a
- * 1 = 802.11b
- * 2 = 802.11g
- */
-
- /* 5.2GHz channels start after the 2.4GHz channels */
- modes[A].mode = MODE_IEEE80211A;
- modes[A].channels = &channels[GLOBAL_ARRAY_SIZE(iwl_eeprom_band_1)];
- modes[A].rates = rates;
- modes[A].num_rates = 8; /* just OFDM */
-#if IWL == 4965
- modes[A].rates = &rates[4];
-#endif
- modes[A].num_channels = 0;
-
- modes[B].mode = MODE_IEEE80211B;
- modes[B].channels = channels;
-#if IWL == 3945
- modes[B].rates = &rates[8];
-#elif IWL == 4965
- modes[B].rates = rates;
-#endif
- modes[B].num_rates = 4; /* just CCK */
- modes[B].num_channels = 0;
-
- modes[G].mode = MODE_IEEE80211G;
- modes[G].channels = channels;
- modes[G].rates = rates;
- modes[G].num_rates = 12; /* OFDM & CCK */
- modes[G].num_channels = 0;
-
-#if IWL == 4965
- modes[G_11N].mode = MODE_ATHEROS_TURBOG;
- modes[G_11N].channels = channels;
- modes[G_11N].num_rates = 13; /* OFDM & CCK */
- modes[G_11N].rates = rates;
- modes[G_11N].num_channels = 0;
-
- modes[A_11N].mode = MODE_ATHEROS_TURBO;
- modes[A_11N].channels = &channels[GLOBAL_ARRAY_SIZE(iwl_eeprom_band_1)];
- modes[A_11N].rates = &rates[4];
- modes[A_11N].num_rates = 9; /* just OFDM */
- modes[A_11N].num_channels = 0;
-#endif
- priv->ieee_channels = channels;
- priv->ieee_rates = rates;
-
- iwl_init_hw_rates(priv, rates);
-
- for (i = 0, geo_ch = channels; i < priv->channel_count; i++) {
- ch = &priv->channel_info[i];
-
- if (!is_channel_valid(ch)) {
- IWL_WARNING("Channel %d [%sGHz] is Tx only -- "
- "skipping.\n",
- ch->channel, is_channel_a_band(ch) ?
- "5.2" : "2.4");
- continue;
- }
-
- if (is_channel_a_band(ch)) {
- geo_ch = &modes[A].channels[modes[A].num_channels++];
-#if IWL == 4965
- modes[A_11N].num_channels++;
-#endif
- } else {
- geo_ch = &modes[B].channels[modes[B].num_channels++];
- modes[G].num_channels++;
-#if IWL == 4965
- modes[G_11N].num_channels++;
-#endif
- }
-
- geo_ch->freq = ieee80211chan2mhz(ch->channel);
- geo_ch->chan = ch->channel;
- geo_ch->power_level = ch->max_power_avg;
- geo_ch->antenna_max = 0xff;
-
- if (is_channel_valid(ch)) {
- geo_ch->flag = IEEE80211_CHAN_W_SCAN;
- if (ch->flags & EEPROM_CHANNEL_IBSS)
- geo_ch->flag |= IEEE80211_CHAN_W_IBSS;
-
- if (ch->flags & EEPROM_CHANNEL_ACTIVE)
- geo_ch->flag |= IEEE80211_CHAN_W_ACTIVE_SCAN;
-
- if (ch->flags & EEPROM_CHANNEL_RADAR)
- geo_ch->flag |= IEEE80211_CHAN_W_RADAR_DETECT;
-
- if (ch->max_power_avg > priv->max_channel_txpower_limit)
- priv->max_channel_txpower_limit =
- ch->max_power_avg;
- }
-
- geo_ch->val = geo_ch->flag;
- }
-
- if ((modes[A].num_channels == 0) && priv->is_abg) {
- printk(KERN_INFO DRV_NAME
- ": Incorrectly detected BG card as ABG. Please send "
- "your PCI ID 0x%04X:0x%04X to maintainer.\n",
- priv->pci_dev->device, priv->pci_dev->subsystem_device);
- priv->is_abg = 0;
- }
-
- printk(KERN_INFO DRV_NAME
- ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
- modes[G].num_channels, modes[A].num_channels);
-
- /*
- * NOTE: We register these in preference of order -- the
- * stack doesn't currently (as of 7.0.6 / Apr 24 '07) pick
- * a phymode based on rates or AP capabilities but seems to
- * configure it purely on if the channel being configured
- * is supported by a mode -- and the first match is taken
- */
-
- if (modes[G].num_channels)
- ieee80211_register_hwmode(priv->hw, &modes[G]);
- if (modes[B].num_channels)
- ieee80211_register_hwmode(priv->hw, &modes[B]);
- if (modes[A].num_channels)
- ieee80211_register_hwmode(priv->hw, &modes[A]);
-
- priv->modes = modes;
- priv->status |= STATUS_GEO_CONFIGURED;
-
- return 0;
-}
-
-/******************************************************************************
- *
- * uCode download functions
- *
- ******************************************************************************/
-
-static void iwl_dealloc_ucode_pci(struct iwl_priv *priv)
-{
- if (priv->ucode_code.v_addr != NULL) {
- pci_free_consistent(priv->pci_dev,
- priv->ucode_code.len,
- priv->ucode_code.v_addr,
- priv->ucode_code.p_addr);
- priv->ucode_code.v_addr = NULL;
- }
- if (priv->ucode_data.v_addr != NULL) {
- pci_free_consistent(priv->pci_dev,
- priv->ucode_data.len,
- priv->ucode_data.v_addr,
- priv->ucode_data.p_addr);
- priv->ucode_data.v_addr = NULL;
- }
- if (priv->ucode_data_backup.v_addr != NULL) {
- pci_free_consistent(priv->pci_dev,
- priv->ucode_data_backup.len,
- priv->ucode_data_backup.v_addr,
- priv->ucode_data_backup.p_addr);
- priv->ucode_data_backup.v_addr = NULL;
- }
- if (priv->ucode_init.v_addr != NULL) {
- pci_free_consistent(priv->pci_dev,
- priv->ucode_init.len,
- priv->ucode_init.v_addr,
- priv->ucode_init.p_addr);
- priv->ucode_init.v_addr = NULL;
- }
- if (priv->ucode_init_data.v_addr != NULL) {
- pci_free_consistent(priv->pci_dev,
- priv->ucode_init_data.len,
- priv->ucode_init_data.v_addr,
- priv->ucode_init_data.p_addr);
- priv->ucode_init_data.v_addr = NULL;
- }
- if (priv->ucode_boot.v_addr != NULL) {
- pci_free_consistent(priv->pci_dev,
- priv->ucode_boot.len,
- priv->ucode_boot.v_addr,
- priv->ucode_boot.p_addr);
- priv->ucode_boot.v_addr = NULL;
- }
-}
-
-/**
- * iwl_verify_inst_full - verify runtime uCode image in card vs. host,
- * looking at all data.
- */
-static int iwl_verify_inst_full(struct iwl_priv *priv, __le32* image, u32 len)
-{
- u32 val;
- u32 save_len = len;
- int rc = 0;
- u32 errcnt;
-
- IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
-
- rc = iwl_grab_restricted_access(priv);
- if (rc)
- return rc;
-
- iwl_write_restricted(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND);
-
- errcnt = 0;
- for (; len > 0; len -= sizeof(u32), image++) {
- /* read data comes through single port, auto-incr addr */
- /* NOTE: Use the debugless read so we don't flood kernel log
- * if IWL_DL_IO is set */
- val = _iwl_read_restricted(priv, HBUS_TARG_MEM_RDAT);
- if (val != le32_to_cpu(*image)) {
- IWL_ERROR("uCode INST section is invalid at "
- "offset 0x%x, is 0x%x, s/b 0x%x\n",
- save_len - len, val, le32_to_cpu(*image));
- rc = -EIO;
- errcnt++;
- if (errcnt >= 20)
- break;
- }
- }
-
- iwl_release_restricted_access(priv);
-
- if (!errcnt)
- IWL_DEBUG_INFO
- ("ucode image in INSTRUCTION memory is good\n");
-
- return rc;
-}
-
-
-/**
- * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
- * using sample data 100 bytes apart. If these sample points are good,
- * it's a pretty good bet that everything between them is good, too.
- */
-static int iwl_verify_inst_sparse(struct iwl_priv *priv, __le32* image, u32 len)
-{
- u32 val;
- int rc = 0;
- u32 errcnt = 0;
- u32 i;
-
- IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
-
- rc = iwl_grab_restricted_access(priv);
- if (rc)
- return rc;
-
- for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
- /* read data comes through single port, auto-incr addr */
- /* NOTE: Use the debugless read so we don't flood kernel log
- * if IWL_DL_IO is set */
- iwl_write_restricted(priv, HBUS_TARG_MEM_RADDR,
- i + RTC_INST_LOWER_BOUND);
- val = _iwl_read_restricted(priv, HBUS_TARG_MEM_RDAT);
- if (val != le32_to_cpu(*image)) {
-#if 0 /* Enable this if you want to see details */
- IWL_ERROR("uCode INST section is invalid at "
- "offset 0x%x, is 0x%x, s/b 0x%x\n",
- i, val, *image);
-#endif
- rc = -EIO;
- errcnt++;
- if (errcnt >= 3)
- break;
- }
- }
-
- iwl_release_restricted_access(priv);
-
- return rc;
-}
-
-
-/**
- * iwl_verify_ucode - determine which instruction image is in SRAM,
- * and verify its contents
- */
-static int iwl_verify_ucode(struct iwl_priv *priv)
-{
- __le32 *image;
- u32 len;
- int rc = 0;
-
- /* Try bootstrap */
- image = (__le32*)priv->ucode_boot.v_addr;
- len = priv->ucode_boot.len;
- rc = iwl_verify_inst_sparse(priv, image, len);
- if (rc == 0) {
- IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
- return 0;
- }
-
- /* Try initialize */
- image = (__le32*)priv->ucode_init.v_addr;
- len = priv->ucode_init.len;
- rc = iwl_verify_inst_sparse(priv, image, len);
- if (rc == 0) {
- IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
- return 0;
- }
-
- /* Try runtime/protocol */
- image = (__le32*)priv->ucode_code.v_addr;
- len = priv->ucode_code.len;
- rc = iwl_verify_inst_sparse(priv, image, len);
- if (rc == 0) {
- IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
- return 0;
- }
-
- IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
-
- /* Show first several data entries in instruction SRAM.
- * Selection of bootstrap image is arbitrary. */
- image = (__le32*)priv->ucode_boot.v_addr;
- len = priv->ucode_boot.len;
- rc = iwl_verify_inst_full(priv, image, len);
-
- return rc;
-}
-
-
-/* check contents of special bootstrap uCode SRAM */
-static int iwl_verify_bsm(struct iwl_priv *priv)
-{
- __le32 *image = priv->ucode_boot.v_addr;
- u32 len = priv->ucode_boot.len;
- u32 reg;
- u32 val;
-
- IWL_DEBUG_INFO("Begin verify bsm\n");
-
- /* verify BSM SRAM contents */
- val = iwl_read_restricted_reg(priv, BSM_WR_DWCOUNT_REG);
- for (reg = BSM_SRAM_LOWER_BOUND;
- reg < BSM_SRAM_LOWER_BOUND + len;
- reg += sizeof(u32), image ++) {
- val = iwl_read_restricted_reg(priv, reg);
- if (val != le32_to_cpu(*image)) {
- IWL_ERROR("BSM uCode verification failed at "
- "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
- BSM_SRAM_LOWER_BOUND,
- reg - BSM_SRAM_LOWER_BOUND, len,
- val, le32_to_cpu(* image));
- return -EIO;
- }
- }
-
- IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
-
- return 0;
-}
-
-/**
- * iwl_load_bsm - Load bootstrap instructions
- *
- * BSM operation:
- *
- * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
- * in special SRAM that does not power down during RFKILL. When powering back
- * up after power-saving sleeps (or during initial uCode load), the BSM loads
- * the bootstrap program into the on-board processor, and starts it.
- *
- * The bootstrap program loads (via DMA) instructions and data for a new
- * program from host DRAM locations indicated by the host driver in the
- * BSM_DRAM_* registers. Once the new program is loaded, it starts
- * automatically.
- *
- * When initializing the NIC, the host driver points the BSM to the
- * "initialize" uCode image. This uCode sets up some internal data, then
- * notifies host via "initialize alive" that it is complete.
- *
- * The host then replaces the BSM_DRAM_* pointer values to point to the
- * normal runtime uCode instructions and a backup uCode data cache buffer
- * (filled initially with starting data values for the on-board processor),
- * then triggers the "initialize" uCode to load and launch the runtime uCode,
- * which begins normal operation.
- *
- * When doing a power-save shutdown, runtime uCode saves data SRAM into
- * the backup data cache in DRAM before SRAM is powered down.
- *
- * When powering back up, the BSM loads the bootstrap program. This reloads
- * the runtime uCode instructions and the backup data cache into SRAM,
- * and re-launches the runtime uCode from where it left off.
- */
-static int iwl_load_bsm(struct iwl_priv *priv)
-{
- __le32 *image = priv->ucode_boot.v_addr;
- u32 len = priv->ucode_boot.len;
- dma_addr_t pinst;
- dma_addr_t pdata;
- u32 inst_len;
- u32 data_len;
- int rc;
- int i;
- u32 done;
- u32 reg_offset;
-
- IWL_DEBUG_INFO("Begin load bsm\n");
-
- /* make sure bootstrap program is no larger than BSM's SRAM size */
- if (len > IWL_MAX_BSM_SIZE)
- return -EINVAL;
-
- /* Tell bootstrap uCode where to find the "Initialize" uCode
- * in host DRAM ... bits 31:0 for 3945, bits 35:4 for 4965.
- * NOTE: iwl_initialize_alive_start() will replace these values,
- * after the "initialize" uCode has run, to point to
- * runtime/protocol instructions and backup data cache. */
-#if IWL == 3945
- pinst = priv->ucode_init.p_addr;
- pdata = priv->ucode_init_data.p_addr;
-#elif IWL == 4965
- pinst = priv->ucode_init.p_addr >> 4;
- pdata = priv->ucode_init_data.p_addr >> 4;
-#endif
- inst_len = priv->ucode_init.len;
- data_len = priv->ucode_init_data.len;
-
- rc = iwl_grab_restricted_access(priv);
- if (rc)
- return rc;
-
- iwl_write_restricted_reg(priv, BSM_DRAM_INST_PTR_REG, pinst);
- iwl_write_restricted_reg(priv, BSM_DRAM_DATA_PTR_REG, pdata);
- iwl_write_restricted_reg(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
- iwl_write_restricted_reg(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
-
- /* Fill BSM memory with bootstrap instructions */
- for (reg_offset = BSM_SRAM_LOWER_BOUND;
- reg_offset < BSM_SRAM_LOWER_BOUND + len;
- reg_offset += sizeof(u32), image++)
- _iwl_write_restricted_reg(priv, reg_offset, le32_to_cpu(*image));
-
- rc = iwl_verify_bsm(priv);
- if (rc){
- iwl_release_restricted_access(priv);
- return rc;
- }
-
- /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
- iwl_write_restricted_reg(priv, BSM_WR_MEM_SRC_REG, 0x0);
- iwl_write_restricted_reg(priv, BSM_WR_MEM_DST_REG,
- RTC_INST_LOWER_BOUND);
- iwl_write_restricted_reg(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
-
- /* Load bootstrap code into instruction SRAM now,
- * to prepare to load "initialize" uCode */
- iwl_write_restricted_reg(priv, BSM_WR_CTRL_REG,
- BSM_WR_CTRL_REG_BIT_START);
-
- /* Wait for load of bootstrap uCode to finish */
- for (i = 0; i < 100; i++) {
- done = iwl_read_restricted_reg(priv, BSM_WR_CTRL_REG);
- if (!(done & BSM_WR_CTRL_REG_BIT_START))
- break;
- udelay(10);
- }
- if (i < 100)
- IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i);
- else {
- IWL_ERROR("BSM write did not complete!\n");
- return -EIO;
- }
-
- /* Enable future boot loads whenever power management unit triggers it
- * (e.g. when powering back up after power-save shutdown) */
- iwl_write_restricted_reg(priv, BSM_WR_CTRL_REG,
- BSM_WR_CTRL_REG_BIT_START_EN);
-
- iwl_release_restricted_access(priv);
-
- return 0;
-}
-
-static void iwl_nic_start(struct iwl_priv *priv)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Remove all resets to allow NIC to operate */
- iwl_write32(priv, CSR_RESET, 0);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-/**
- * iwl_read_ucode - Read uCode images from disk file.
- *
- * Copy into buffers for card to fetch via bus-mastering
- */
-static int iwl_read_ucode(struct iwl_priv *priv)
-{
- struct iwl_ucode *ucode;
- int rc = 0;
- const struct firmware *ucode_raw;
-#if IWL == 3945
- const char *name = "iwlwifi-3945.ucode"; /* firmware file name */
-#elif IWL == 4965
- const char *name = "iwlwifi-4965.ucode"; /* firmware file name */
-#endif
- u8 *src;
- size_t len;
- u32 ver,inst_size,data_size,init_size,init_data_size,boot_size;
-
- /* Ask kernel firmware_class module to get the boot firmware off disk.
- * request_firmware() is synchronous call, file is in memory on return.
- * TODO: Would it be more polite to use asynchronous
- * request_firmware_nowait()?? If so, put request back into
- * iwl_pci_probe(), and rest of this function would serve as
- * the callback for request_firmware_nowait(). Also need to
- * make sure everything waits for this callback to complete! */
- rc = request_firmware(&ucode_raw, name, &priv->pci_dev->dev);
- if (rc < 0) {
- IWL_ERROR("%s firmware file req failed: Reason %d\n", name, rc);
- goto error;
- }
-
- IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
- name, ucode_raw->size);
-
- /* Make sure that we got at least our header! */
- if (ucode_raw->size < sizeof(*ucode)) {
- IWL_ERROR("File size way too small!\n");
- rc = -EINVAL;
- goto err_release;
- }
-
- /* Data from ucode file: header followed by uCode images */
- ucode = (void *)ucode_raw->data;
-
- ver = le32_to_cpu(ucode->ver);
- inst_size = le32_to_cpu(ucode->inst_size);
- data_size = le32_to_cpu(ucode->data_size);
- init_size = le32_to_cpu(ucode->init_size);
- init_data_size = le32_to_cpu(ucode->init_data_size);
- boot_size = le32_to_cpu(ucode->boot_size);
-
- IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver);
- IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
- inst_size);
- IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
- data_size);
- IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
- init_size);
- IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
- init_data_size);
- IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
- boot_size);
-
- /* Verify size of file vs. image size info in file's header */
- if (ucode_raw->size < sizeof(*ucode) +
- inst_size + data_size + init_size +
- init_data_size + boot_size) {
-
- IWL_DEBUG_INFO("uCode file size %d too small\n",
- (int)ucode_raw->size);
- rc = -EINVAL;
- goto err_release;
- }
-
- /* Verify that uCode images will fit in card's SRAM */
- if (inst_size > IWL_MAX_INST_SIZE) {
- IWL_DEBUG_INFO("uCode instr len %d too large to fit in card\n",
- (int)inst_size);
- rc = -EINVAL;
- goto err_release;
- }
-
- if (data_size > IWL_MAX_DATA_SIZE) {
- IWL_DEBUG_INFO("uCode data len %d too large to fit in card\n",
- (int)data_size);
- rc = -EINVAL;
- goto err_release;
- }
- if (init_size > IWL_MAX_INST_SIZE) {
- IWL_DEBUG_INFO
- ("uCode init instr len %d too large to fit in card\n",
- (int)init_size);
- rc = -EINVAL;
- goto err_release;
- }
- if (init_data_size > IWL_MAX_DATA_SIZE) {
- IWL_DEBUG_INFO
- ("uCode init data len %d too large to fit in card\n",
- (int)init_data_size);
- rc = -EINVAL;
- goto err_release;
- }
- if (boot_size > IWL_MAX_BSM_SIZE) {
- IWL_DEBUG_INFO
- ("uCode boot instr len %d too large to fit in bsm\n",
- (int)boot_size);
- rc = -EINVAL;
- goto err_release;
- }
-
- /* Allocate ucode buffers for card's bus-master loading ... */
-
- /* Runtime instructions and 2 copies of data:
- * 1) unmodified from disk
- * 2) backup cache for save/restore during power-downs */
- priv->ucode_code.len = inst_size;
- priv->ucode_code.v_addr =
- pci_alloc_consistent(priv->pci_dev,
- priv->ucode_code.len,
- &(priv->ucode_code.p_addr));
-
- priv->ucode_data.len = data_size;
- priv->ucode_data.v_addr =
- pci_alloc_consistent(priv->pci_dev,
- priv->ucode_data.len,
- &(priv->ucode_data.p_addr));
-
- priv->ucode_data_backup.len = data_size;
- priv->ucode_data_backup.v_addr =
- pci_alloc_consistent(priv->pci_dev,
- priv->ucode_data_backup.len,
- &(priv->ucode_data_backup.p_addr));
-
-
- /* Initialization instructions and data */
- priv->ucode_init.len = init_size;
- priv->ucode_init.v_addr =
- pci_alloc_consistent(priv->pci_dev,
- priv->ucode_init.len,
- &(priv->ucode_init.p_addr));
-
- priv->ucode_init_data.len = init_data_size;
- priv->ucode_init_data.v_addr =
- pci_alloc_consistent(priv->pci_dev,
- priv->ucode_init_data.len,
- &(priv->ucode_init_data.p_addr));
-
- /* Bootstrap (instructions only, no data) */
- priv->ucode_boot.len = boot_size;
- priv->ucode_boot.v_addr =
- pci_alloc_consistent(priv->pci_dev,
- priv->ucode_boot.len,
- &(priv->ucode_boot.p_addr));
-
- if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
- !priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr ||
- !priv->ucode_boot.v_addr || !priv->ucode_data_backup.v_addr)
- goto err_pci_alloc;
-
- /* Copy images into buffers for card's bus-master reads ... */
-
- /* Runtime instructions (first block of data in file) */
- src = &ucode->data[0];
- len = priv->ucode_code.len;
- IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %d\n",
- (int)len);
- memcpy(priv->ucode_code.v_addr, src, len);
- IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
- priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
-
- /* Runtime data (2nd block)
- * NOTE: Copy into backup buffer will be done in iwl_up() */
- src = &ucode->data[inst_size];
- len = priv->ucode_data.len;
- IWL_DEBUG_INFO("Copying (but not loading) uCode data len %d\n",
- (int)len);
- memcpy(priv->ucode_data.v_addr, src, len);
- memcpy(priv->ucode_data_backup.v_addr, src, len);
-
- /* Initialization instructions (3rd block) */
- if (init_size) {
- src = &ucode->data[inst_size + data_size];
- len = priv->ucode_init.len;
- IWL_DEBUG_INFO("Copying (but not loading) init instr len %d\n",
- (int)len);
- memcpy(priv->ucode_init.v_addr, src, len);
- }
-
- /* Initialization data (4th block) */
- if (init_data_size) {
- src = &ucode->data[inst_size + data_size + init_size];
- len = priv->ucode_init_data.len;
- IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
- (int)len);
- memcpy(priv->ucode_init_data.v_addr, src, len);
- }
-
- /* Bootstrap instructions (5th block) */
- src = &ucode->data[inst_size + data_size + init_size + init_data_size];
- len = priv->ucode_boot.len;
- IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
- (int)len);
- memcpy(priv->ucode_boot.v_addr, src, len);
-
- /* We have our copies now, allow OS release its copies */
- release_firmware(ucode_raw);
- return 0;
-
- err_pci_alloc:
- IWL_ERROR("failed to allocate pci memory\n");
- rc = -ENOMEM;
- iwl_dealloc_ucode_pci(priv);
-
- err_release:
- release_firmware(ucode_raw);
-
- error:
- return rc;
-}
-
-
-/**
- * iwl_set_ucode_ptrs - Set uCode address location
- *
- * Tell initialization uCode where to find runtime uCode.
- *
- * BSM registers initially contain pointers to initialization uCode.
- * We need to replace them to load runtime uCode inst and data,
- * and to save runtime data when powering down.
- */
-static int iwl_set_ucode_ptrs(struct iwl_priv *priv)
-{
- dma_addr_t pinst;
- dma_addr_t pdata;
- int rc = 0;
- unsigned long flags;
-
-#if IWL == 3945
- /* bits 31:0 for 3945 */
- pinst = priv->ucode_code.p_addr;
- pdata = priv->ucode_data_backup.p_addr;
-#else
- /* bits 35:4 for 4965 */
- pinst = priv->ucode_code.p_addr >> 4;
- pdata = priv->ucode_data_backup.p_addr >> 4;
-#endif
-
- spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
- if (rc) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
- }
-
- /* Tell bootstrap uCode where to find image to load */
- iwl_write_restricted_reg(priv, BSM_DRAM_INST_PTR_REG, pinst);
- iwl_write_restricted_reg(priv, BSM_DRAM_DATA_PTR_REG, pdata);
- iwl_write_restricted_reg(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
- priv->ucode_data.len);
-
- /* Inst bytecount must be last to set up, bit 31 signals uCode
- * that all new ptr/size info is in place */
- iwl_write_restricted_reg(priv, BSM_DRAM_INST_BYTECOUNT_REG,
- priv->ucode_code.len | 0x80000000);
-
- iwl_release_restricted_access(priv);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
-
- return rc;
-}
-
-/**
- * iwl_init_alive_start - Called after REPLY_ALIVE notification receieved
- *
- * Called after REPLY_ALIVE notification received from "initialize" uCode.
- *
- * The 4965 "initialize" ALIVE reply contains calibration data for:
- * Voltage, temperature, and MIMO tx gain correction, now stored in priv
- * (3945 does not contain this data).
- *
- * Tell "initialize" uCode to go ahead and load the runtime uCode.
-*/
-static void iwl_init_alive_start(struct iwl_priv *priv)
-{
- /* Check alive response for "valid" sign from uCode */
- if (priv->card_alive_init.is_valid != 1) {
- /* We had an error bringing up the hardware, so take it
- * all the way back down so we can try again */
- IWL_DEBUG_INFO("Initialize Alive failed.\n");
- goto restart;
- }
-
- /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
- * This is a paranoid check, because we would not have gotten the
- * "initialize" alive if code weren't properly loaded. */
- if (iwl_verify_ucode(priv)) {
- /* Runtime instruction load was bad;
- * take it all the way back down so we can try again */
- IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
- goto restart;
- }
-
-#if IWL == 4965
- /* Calculate temperature */
- priv->temperature = iwl4965_get_temperature(priv);
-#endif
-
- /* Send pointers to protocol/runtime uCode image ... init code will
- * load and launch runtime uCode, which will send us another "Alive"
- * notification. */
- IWL_DEBUG_INFO("Initialization Alive received.\n");
- if (iwl_set_ucode_ptrs(priv)) {
- /* Runtime instruction load won't happen;
- * take it all the way back down so we can try again */
- IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
- goto restart;
- }
- return;
-
- restart:
- queue_work(priv->workqueue, &priv->restart);
-}
-
-
-/**
- * iwl_alive_start - called after REPLY_ALIVE notification received
- * from protocol/runtime uCode (initialization uCode's
- * Alive gets handled by iwl_init_alive_start()).
- */
-static void iwl_alive_start(struct iwl_priv *priv)
-{
- int rc = 0;
-#if IWL == 3945
- int thermal_spin = 0;
- u32 rfkill;
-#endif
-
- IWL_DEBUG_INFO("Runtime Alive received.\n");
-
- if (priv->card_alive.is_valid != 1) {
- /* We had an error bringing up the hardware, so take it
- * all the way back down so we can try again */
- IWL_DEBUG_INFO("Alive failed.\n");
- goto restart;
- }
-
- /* Initialize uCode has loaded Runtime uCode ... verify inst image.
- * This is a paranoid check, because we would not have gotten the
- * "runtime" alive if code weren't properly loaded. */
- if (iwl_verify_ucode(priv)) {
- /* Runtime instruction load was bad;
- * take it all the way back down so we can try again */
- IWL_DEBUG_INFO("Bad runtime uCode load.\n");
- goto restart;
- }
-
- iwl_clear_stations_table(priv);
-
-#if IWL == 4965
- rc = iwl4965_alive_notify(priv);
- if (rc) {
- IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
- rc);
- goto restart;
- }
-#elif IWL == 3945
- rc = iwl_grab_restricted_access(priv);
- if (rc) {
- IWL_WARNING("Can not read rfkill status from adapter\n");
- return;
- }
-
- rfkill = iwl_read_restricted_reg(priv, ALM_APMG_RFKILL);
- IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill);
- iwl_release_restricted_access(priv);
-
- if (rfkill & 0x1) {
- priv->status &= ~STATUS_RF_KILL_HW;
- /* if rfkill is not on, then wait for thermal
- * sensor in adapter to kick in */
- while (iwl_hw_get_temperature(priv) == 0) {
- thermal_spin++;
- udelay(10);
- }
-
- if (thermal_spin)
- IWL_DEBUG_INFO("Thermal calibration took %dus\n",
- thermal_spin * 10);
- } else
- priv->status |= STATUS_RF_KILL_HW;
-#endif
-
- /* After the ALIVE response, we can process host commands */
- priv->status |= STATUS_ALIVE;
-
- /* Clear out the uCode error bit if it is set */
- priv->status &= ~STATUS_FW_ERROR;
-
- rc = iwl_init_channel_map(priv);
- if (rc) {
- IWL_ERROR("initializing regulatory failed: %d\n", rc);
- return;
- }
-
- iwl_init_geos(priv);
-
- if (priv->status & STATUS_RF_KILL_MASK)
- return;
-
- if (!priv->mac80211_registered) {
- /* Unlock so any user space entry points can call back into
- * the driver without a deadlock... */
- mutex_unlock(&priv->mutex);
- iwl_rate_control_register();
- rc = ieee80211_register_hw(priv->hw);
- priv->hw->conf.beacon_int = 100;
- mutex_lock(&priv->mutex);
-
- if (rc) {
- IWL_ERROR("Failed to register network "
- "device (error %d)\n", rc);
- return;
- }
-
- priv->mac80211_registered = 1;
-
- iwl_reset_channel_flag(priv);
- } else
- ieee80211_start_queues(priv->hw);
-
- priv->active_rate = priv->rates_mask;
- priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
-
- iwl_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode));
-
- /* Initialize our rx_config data */
- iwl_connection_init_rx_config(priv);
- memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
-
- if (iwl_is_associated(priv)) {
- struct iwl_rxon_cmd *active_rxon =
- (struct iwl_rxon_cmd *)(&priv->active_rxon);
-
- memcpy(&priv->staging_rxon, &priv->active_rxon,
- sizeof(priv->staging_rxon));
- active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- }
-
- /* Configure BT coexistence */
- iwl_send_bt_config(priv);
-
- /* Configure the adapter for unassociated operation */
- iwl_commit_rxon(priv);
-
- /* At this point, the NIC is initialized and operational */
- priv->notif_missed_beacons = 0;
- priv->status |= STATUS_READY;
-
- iwl3945_reg_txpower_periodic(priv);
-
-#if IWL == 4965
- iwl4965_rf_kill_ct_config(priv);
-#endif
- IWL_DEBUG_INFO("ALIVE processing complete.\n");
-
- if (priv->error_recovering)
- iwl_error_recovery(priv);
-
- return;
-
- restart:
- queue_work(priv->workqueue, &priv->restart);
-}
-
-static void iwl_cancel_deferred_work(struct iwl_priv *priv);
-
-void iwl_down(struct iwl_priv *priv)
-{
- unsigned long flags;
- int exit_pending = priv->status & STATUS_EXIT_PENDING;
- struct ieee80211_conf *conf = NULL;
-
- IWL_WARNING("ipw going down \n");
-
- conf = ieee80211_get_hw_conf(priv->hw);
-
- priv->status |= STATUS_EXIT_PENDING;
-
- iwl_clear_stations_table(priv);
-
- /* Unblock any waiting calls */
- wake_up_interruptible_all(&priv->wait_command_queue);
-
- iwl_cancel_deferred_work(priv);
-
- /* Wipe out the EXIT_PENDING status bit if we are not actually
- * exiting the module */
- if (!exit_pending)
- priv->status &= ~STATUS_EXIT_PENDING;
-
- /* stop and reset the on-board processor */
- iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
-
- /* tell the device to stop sending interrupts */
- iwl_disable_interrupts(priv);
-
- if (priv->mac80211_registered)
- ieee80211_stop_queues(priv->hw);
-
- /* If we have not previously called iwl_init() then
- * clear all bits but the RF Kill and SUSPEND bits and return */
- if (!iwl_is_init(priv)) {
- priv->status &= (STATUS_RF_KILL_MASK | STATUS_IN_SUSPEND);
- goto exit;
- }
-
- /* ...otherwise clear out all the status bits but the RF Kill and
- * SUSPEND bits and continue taking the NIC down. */
- priv->status &=
- (STATUS_RF_KILL_MASK | STATUS_IN_SUSPEND | STATUS_FW_ERROR);
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl_hw_txq_ctx_stop(priv);
- iwl_hw_rxq_stop(priv);
-
- spin_lock_irqsave(&priv->lock, flags);
- if (!iwl_grab_restricted_access(priv)) {
- iwl_write_restricted_reg(priv, ALM_APMG_CLK_DIS,
- APMG_CLK_REG_VAL_DMA_CLK_RQT);
- iwl_release_restricted_access(priv);
- }
- spin_unlock_irqrestore(&priv->lock, flags);
-
- udelay(5);
-
- iwl_hw_nic_stop_master(priv);
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl_hw_nic_reset(priv);
-
- exit:
- memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
-
- if (priv->ibss_beacon)
- dev_kfree_skb(priv->ibss_beacon);
- priv->ibss_beacon = NULL;
-
- /* clear out any free frames */
- iwl_clear_free_frames(priv);
-}
-
-#define MAX_HW_RESTARTS 5
-
-static int iwl_up(struct iwl_priv *priv)
-{
- int rc, i;
- u32 hw_rf_kill = 0;
-
- if (priv->status & STATUS_EXIT_PENDING) {
- IWL_WARNING("Exit pending; will not bring the NIC up\n");
- return -EIO;
- }
-
- if (priv->status & STATUS_RF_KILL_SW) {
- IWL_WARNING("Radio disabled by SW RF kill (module "
- "parameter)\n");
- return 0;
- }
-
- iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
-
- rc = iwl_hw_nic_init(priv);
- if (rc) {
- IWL_ERROR("Unable to int nic\n");
- return rc;
- }
-
- /* make sure rfkill handshake bits are cleared */
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
- /* clear (again), then enable host interrupts */
- iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
- iwl_enable_interrupts(priv);
-
- /* really make sure rfkill handshake bits are cleared */
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-
- /* Copy original ucode data image from disk into backup cache.
- * This will be used to initialize the on-board processor's
- * data SRAM for a clean start when the runtime program first loads. */
- memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
- priv->ucode_data.len);
-
- /* If platform's RF_KILL switch is set to KILL, wait for BIT_INT_RF_KILL
- * interrupt before loading uCode and getting things started */
- if (!(iwl_read32(priv, CSR_GP_CNTRL) &
- CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
- hw_rf_kill = 1;
-
- if ((priv->status & STATUS_RF_KILL_HW) || hw_rf_kill) {
- IWL_WARNING("Radio disabled by HW RF Kill switch\n");
- return 0;
- }
-
- for (i = 0; i < MAX_HW_RESTARTS; i++) {
-
- iwl_clear_stations_table(priv);
-
- /* load bootstrap state machine,
- * load bootstrap program into processor's memory,
- * prepare to load the "initialize" uCode */
- rc = iwl_load_bsm(priv);
-
- if (rc) {
- IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc);
- continue;
- }
-
- /* start card; "initialize" will load runtime ucode */
- iwl_nic_start(priv);
-
- /* MAC Address location in EEPROM same for 3945/4965 */
- get_eeprom_mac(priv, priv->mac_addr);
- IWL_DEBUG_INFO("MAC address: " MAC_FMT "\n",
- MAC_ARG(priv->mac_addr));
-
- SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
-
- return 0;
- }
-
- priv->status |= STATUS_EXIT_PENDING;
- iwl_down(priv);
-
- /* tried to restart and config the device for as long as our
- * patience could withstand */
- IWL_ERROR("Unable to initialize device after %d attempts.\n", i);
- return -EIO;
-}
-
-
-/*****************************************************************************
- *
- * Workqueue callbacks
- *
- *****************************************************************************/
-
-static void iwl_bg_init_alive_start(void *p)
-{
- struct iwl_priv *priv = p;
-
- if (priv->status & STATUS_EXIT_PENDING)
- return;
-
- mutex_lock(&priv->mutex);
- iwl_init_alive_start(priv);
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl_bg_alive_start(void *p)
-{
- struct iwl_priv *priv = p;
-
- if (priv->status & STATUS_EXIT_PENDING)
- return;
-
- mutex_lock(&priv->mutex);
- iwl_alive_start(priv);
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl_bg_rf_kill(void *p)
-{
- struct iwl_priv *priv = p;
-
- wake_up_interruptible(&priv->wait_command_queue);
-
- if (priv->status & STATUS_EXIT_PENDING)
- return;
-
- mutex_lock(&priv->mutex);
-
- if (!(priv->status & STATUS_RF_KILL_MASK)) {
- IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL,
- "HW and/or SW RF Kill no longer active, restarting "
- "device\n");
- if (!(priv->status & STATUS_EXIT_PENDING))
- queue_work(priv->workqueue, &priv->restart);
- } else {
-
- if (!(priv->status & STATUS_RF_KILL_HW))
- IWL_DEBUG_RF_KILL
- ("Can not turn radio back on - "
- "disabled by SW switch\n");
- else
- IWL_WARNING
- ("Radio Frequency Kill Switch is On:\n"
- "Kill switch must be turned off for "
- "wireless networking to work.\n");
- }
- mutex_unlock(&priv->mutex);
-}
-
-#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
-
-static void iwl_bg_scan_check(void *p)
-{
- struct iwl_priv *priv = p;
-
- if (priv->status & STATUS_EXIT_PENDING)
- return;
-
- mutex_lock(&priv->mutex);
- if (priv->status & (STATUS_SCANNING | STATUS_SCAN_ABORTING)) {
- IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN,
- "Scan completion watchdog resetting "
- "adapter (%dms).\n",
- jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
- if (!(priv->status & STATUS_EXIT_PENDING))
- queue_work(priv->workqueue, &priv->restart);
- }
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl_bg_request_scan(void *p)
-{
- struct iwl_priv *priv = p;
- struct iwl_host_cmd cmd = {
- .id = REPLY_SCAN_CMD,
- .len = sizeof(struct iwl_scan_cmd),
- .meta.flags = CMD_SIZE_HUGE,
- };
- int rc = 0;
- struct iwl_scan_cmd *scan;
- struct ieee80211_conf *conf = NULL;
- u8 direct_mask;
- int phymode;
-
- conf = ieee80211_get_hw_conf(priv->hw);
-
- mutex_lock(&priv->mutex);
-
- if (!iwl_is_ready(priv)) {
- IWL_WARNING("request scan called when driver not ready.\n");
- goto done;
- }
-
- /* Make sure the scan wasn't cancelled before this queued work
- * was given the chance to run... */
- if (!(priv->status & STATUS_SCANNING))
- goto done;
-
- /* This should never be called or scheduled if there is currently
- * a scan active in the hardware. */
- if (priv->status & STATUS_SCAN_HW) {
- IWL_DEBUG_INFO
- ("Multiple concurrent scan requests in parallel. "
- "Ignoring second request.\n");
- rc = -EIO;
- goto done;
- }
-
- if (priv->status & STATUS_EXIT_PENDING) {
- IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
- goto done;
- }
-
- if (priv->status & STATUS_SCAN_ABORTING) {
- IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
- goto done;
- }
-
- if (priv->status & STATUS_RF_KILL_MASK) {
- IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
- goto done;
- }
-
- if (!(priv->status & STATUS_READY)) {
- IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
- goto done;
- }
-
- if (!priv->scan_bands) {
- IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
- goto done;
- }
-
- if (!priv->scan) {
- priv->scan = kmalloc(sizeof(struct iwl_scan_cmd) +
- IWL_MAX_SCAN_SIZE, GFP_ATOMIC);
- if (!priv->scan) {
- rc = -ENOMEM;
- goto done;
- }
- }
- scan = priv->scan;
- memset(scan, 0, sizeof(struct iwl_scan_cmd) + IWL_MAX_SCAN_SIZE);
-
- scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
- scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
-
- if (iwl_is_associated(priv)) {
- u16 interval = 0;
- u32 extra;
- u32 suspend_time = 100;
- unsigned long flags;
-
- IWL_DEBUG_INFO("Scanning while associated...\n");
-
- spin_lock_irqsave(&priv->lock, flags);
- interval = priv->beacon_int;
- spin_unlock_irqrestore(&priv->lock, flags);
-
- scan->suspend_time = 0;
- scan->max_out_time = 600 * 1024;
- if (interval) {
-#if IWL == 3945
- /*
- * suspend time format:
- * 0-19: beacon interval in usec (time before exec.)
- * 20-23: 0
- * 24-31: number of beacons (suspend between channels)
- */
-
- extra = (suspend_time / interval) << 24;
- scan->suspend_time = 0xFF0FFFFF &
- (extra | ((suspend_time % interval) * 1024));
-#else
- extra = (suspend_time / interval) << 22;
- scan->suspend_time = (extra |
- ((suspend_time % interval) * 1024));
- IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
- scan->suspend_time, interval);
-#endif
- }
- }
-
- /* We should add the ability for user to lock to PASSIVE ONLY */
- if (priv->one_direct_scan) {
- IWL_DEBUG_SCAN
- ("Kicking off one direct scan for '%s'\n",
- iwl_escape_essid(priv->direct_ssid,
- priv->direct_ssid_len));
- scan->direct_scan[0].id = WLAN_EID_SSID;
- scan->direct_scan[0].len = priv->direct_ssid_len;
- memcpy(scan->direct_scan[0].ssid,
- priv->direct_ssid, priv->direct_ssid_len);
- direct_mask = 1;
- } else if (!iwl_is_associated(priv)) {
- scan->direct_scan[0].id = WLAN_EID_SSID;
- scan->direct_scan[0].len = priv->essid_len;
- memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len);
- direct_mask = 1;
- } else {
- direct_mask = 0;
- }
-
- /* We don't build a direct scan probe request; the uCode will do
- * that based on the direct_mask added to each channel entry */
- scan->tx_cmd.len =
- iwl_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
- IWL_MAX_SCAN_SIZE - sizeof(scan), 0);
- scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
- scan->tx_cmd.sta_id = IWL_BROADCAST_ID;
- scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
-
- /* flags + rate selection */
-
-#if IWL == 4965
- scan->tx_cmd.tx_flags |= 0x200;
-#endif
-
- switch (priv->scan_bands) {
- case 2:
- scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
-#if IWL == 3945
- scan->tx_cmd.rate = IWL_RATE_1M_PLCP;
-#elif IWL == 4965
- scan->tx_cmd.rate.s.rate = IWL_RATE_1M_PLCP;
- scan->tx_cmd.rate.s.flags = 0x80 | 0x2;
-#endif
- scan->good_CRC_th = 0;
- phymode = MODE_IEEE80211G;
- break;
-
- case 1:
-#if IWL == 3945
- scan->tx_cmd.rate = IWL_RATE_6M_PLCP;
-#elif IWL == 4965
- scan->tx_cmd.rate.s.rate = IWL_RATE_6M_PLCP;
- scan->tx_cmd.rate.s.flags = 0x80;
-#endif
- scan->good_CRC_th = IWL_GOOD_CRC_TH;
- phymode = MODE_IEEE80211A;
- break;
-
- default:
- IWL_WARNING("Invalid scan band count\n");
- goto done;
- }
-
- /* select Rx antennas/chains */
-#if IWL == 3945
- scan->flags |= iwl3945_get_antenna_flags(priv);
-
-#elif IWL == 4965
- /* Force use of chains B and C (0x6) for scan Rx.
- * Avoid A (0x1) because of its off-channel reception on A-band.
- * MIMO is not used here, but value is required to make uCode happy. */
- scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK |
- (0x7 << RXON_RX_CHAIN_VALID_POS) |
- (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS) |
- (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS);
-#endif
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR)
- scan->filter_flags = RXON_FILTER_PROMISC_MSK;
-
- if (direct_mask)
- IWL_DEBUG_SCAN
- ("Initiating direct scan for %s.\n",
- iwl_escape_essid(priv->essid, priv->essid_len));
- else
- IWL_DEBUG_SCAN("Initiating indirect scan.\n");
-
- scan->channel_count =
- iwl_get_channels_for_scan(
- priv, phymode, 1, /* active */
- direct_mask, (void *)&scan->data[scan->tx_cmd.len]);
-
- cmd.len += scan->tx_cmd.len +
- scan->channel_count * sizeof(struct iwl_scan_channel);
- cmd.data = scan;
- scan->len = cmd.len;
-
- priv->status |= STATUS_SCAN_HW;
- rc = iwl_send_cmd(priv, &cmd);
- if (rc)
- goto done;
-
- queue_delayed_work(priv->workqueue, &priv->scan_check,
- IWL_SCAN_CHECK_WATCHDOG);
-
- priv->status &= ~STATUS_SCAN_PENDING;
-
- mutex_unlock(&priv->mutex);
- return;
-
- done:
- /* inform mac80211 sacn aborted */
- queue_work(priv->workqueue, &priv->scan_completed);
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl_bg_up(void *p)
-{
- struct iwl_priv *priv = p;
-
- if (priv->status & STATUS_EXIT_PENDING)
- return;
-
- mutex_lock(&priv->mutex);
- iwl_up(priv);
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl_bg_restart(void *p)
-{
- struct iwl_priv *priv = p;
-
- if (priv->status & STATUS_EXIT_PENDING)
- return;
-
- mutex_lock(&priv->mutex);
- iwl_down(priv);
- mutex_unlock(&priv->mutex);
-
- queue_work(priv->workqueue, &priv->up);
-}
-
-static void iwl_bg_rx_replenish(void *p)
-{
- struct iwl_priv *priv = p;
-
- if (priv->status & STATUS_EXIT_PENDING)
- return;
-
- mutex_lock(&priv->mutex);
- iwl_rx_replenish(priv, 1);
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl_bg_post_associate(void *p)
-{
- struct iwl_priv *priv = p;
-
- int rc = 0;
- struct ieee80211_conf *conf = NULL;
-
- IWL_DEBUG_ASSOC("Associated as %d to: " MAC_FMT "\n",
- priv->assoc_id, MAC_ARG(priv->active_rxon.bssid_addr));
-
- if (priv->status & STATUS_EXIT_PENDING)
- return;
-
- mutex_lock(&priv->mutex);
-
- conf = ieee80211_get_hw_conf(priv->hw);
-
- priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl_commit_rxon(priv);
-
- memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
- iwl_setup_rxon_timing(priv);
- rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
- sizeof(priv->rxon_timing), &priv->rxon_timing);
- if (rc)
- IWL_WARNING("REPLY_RXON_TIMING failed - "
- "Attempting to continue.\n");
-
- priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
-
-#if IWL == 4965
-#ifdef CONFIG_IWLWIFI_HT
- if (priv->is_ht_enabled && priv->current_assoc_ht.is_ht)
- iwl4965_set_rxon_ht(priv, &priv->current_assoc_ht);
- else {
- priv->active_rate_ht[0] = 0;
- priv->active_rate_ht[1] = 0;
- priv->current_channel_width = IWL_CHANNEL_WIDTH_20MHZ;
- }
-#endif /* CONFIG_IWLWIFI_HT*/
- iwl4965_set_rxon_chain(priv);
-#endif
- priv->staging_rxon.assoc_id = priv->assoc_id;
-
- IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
- priv->assoc_id, priv->beacon_int);
-
- if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
- priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
-
- if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
- if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
- priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
- else
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
- priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-
- }
-
- iwl_commit_rxon(priv);
-
- switch (priv->iw_mode) {
- case IEEE80211_IF_TYPE_STA:
- iwl_sync_station(priv, IWL_AP_ID,
- ((priv->phymode == MODE_IEEE80211A) ||
- (priv->phymode == MODE_ATHEROS_TURBO)) ?
- IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
- CMD_ASYNC);
- iwl_rate_scale_init(priv->hw, IWL_AP_ID);
-
- break;
-
- case IEEE80211_IF_TYPE_IBSS:
-
- /* clear out the station table */
- iwl_clear_stations_table(priv);
-
- iwl_rxon_add_station(priv, BROADCAST_ADDR, 0);
- iwl_rxon_add_station(priv, priv->bssid, 0);
-
- iwl_sync_station(priv, IWL_STA_ID,
- ((priv->phymode == MODE_IEEE80211A) ||
- (priv->phymode == MODE_ATHEROS_TURBO)) ?
- IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
- CMD_ASYNC);
- iwl_rate_scale_init(priv->hw, IWL_STA_ID);
- iwl_send_beacon_cmd(priv);
-
- break;
-
- case IEEE80211_IF_TYPE_AP:
-
- /* clear out the station table */
- iwl_clear_stations_table(priv);
-
- iwl_rxon_add_station(priv, BROADCAST_ADDR, 0);
- iwl_send_beacon_cmd(priv);
-
- break;
- }
-
- /* FIXME: not sure why this doesn't work in AP mode */
- if (priv->iw_mode != IEEE80211_IF_TYPE_AP)
- iwl_sequence_reset(priv);
-
-#if IWL == 4965
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
- /* Enable Rx differential gain and sensitivity calibrations */
- iwl4965_chain_noise_reset(priv);
- priv->start_calib = 1;
-#endif /* CONFIG_IWLWIFI_SENSITIVITY */
-#endif /* IWL == 4965 */
-
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl_bg_abort_scan(void *p)
-{
- struct iwl_priv *priv = p;
-
- if (!iwl_is_ready(priv))
- return;
-
- mutex_lock(&priv->mutex);
- priv->status &= ~STATUS_SCAN_PENDING;
- priv->status |= STATUS_SCAN_ABORTING;
-
- iwl_send_scan_abort(priv);
-
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl_bg_scan_completed(void *p)
-{
- struct iwl_priv *priv = p;
-
- IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n");
-
- if (priv->status & STATUS_EXIT_PENDING)
- return;
-
- ieee80211_scan_completed(priv->hw);
-
- /* Since setting the TXPOWER may have been deferred while
- * performing the scan, fire one off */
- mutex_lock(&priv->mutex);
- iwl_hw_reg_send_txpower(priv);
- mutex_unlock(&priv->mutex);
-}
-
-/*****************************************************************************
- *
- * mac80211 entry point functions
- *
- *****************************************************************************/
-
-static int d_open(struct ieee80211_hw *hw)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- /* we should be verifying the device is ready to be opened */
- mutex_lock(&priv->mutex);
-
- priv->is_open = 1;
-
- if (!(priv->status & STATUS_RF_KILL_MASK))
- ieee80211_start_queues(priv->hw);
-
- mutex_unlock(&priv->mutex);
- IWL_DEBUG_MAC80211("leave\n");
- return 0;
-}
-
-static int d_stop(struct ieee80211_hw *hw)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211("enter\n");
- priv->is_open = 0;
- /*netif_stop_queue(dev); */
- flush_workqueue(priv->workqueue);
- IWL_DEBUG_MAC80211("leave\n");
-
- return 0;
-}
-
-static int d_tx(struct ieee80211_hw *hw,
- struct sk_buff *skb, struct ieee80211_tx_control *ctl)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
- IWL_DEBUG_MAC80211("leave - monitor\n");
- return -1;
- }
-
- IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
- ctl->tx_rate);
-
- if (iwl_tx_skb(priv, skb, ctl))
- dev_kfree_skb_any(skb);
-
- IWL_DEBUG_MAC80211("leave\n");
- return 0;
-}
-
-static int d_add_interface(struct ieee80211_hw *hw,
- struct ieee80211_if_init_conf *conf)
-{
- struct iwl_priv *priv = hw->priv;
- unsigned long flags;
-
- IWL_DEBUG_MAC80211("enter - id %d, type %d, MAC " MAC_FMT "\n",
- conf->if_id, conf->type, MAC_ARG(conf->mac_addr));
-
- if (priv->interface_id) {
- IWL_DEBUG_MAC80211("leave - interface_id != 0\n");
- return 0;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->interface_id = conf->if_id;
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- mutex_lock(&priv->mutex);
- iwl_set_mode(priv, conf->type);
-
- IWL_DEBUG_MAC80211("leave\n");
- mutex_unlock(&priv->mutex);
-
- return 0;
-}
-
-/**
- * d_config - mac80211 config callback
- *
- * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
- * be set inappropriately and the driver currently sets the hardware up to
- * use it whenever needed.
- */
-static int d_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
-{
- struct iwl_priv *priv = hw->priv;
- const struct iwl_channel_info *ch_info;
- unsigned long flags;
-
- mutex_lock(&priv->mutex);
- IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel);
-
- if (!iwl_is_ready(priv)) {
- IWL_DEBUG_MAC80211("leave - not ready\n");
- mutex_unlock(&priv->mutex);
- return -EIO;
- }
-
- /* TODO: Figure out how to get ieee80211_local->sta_scanning w/ only
- * what is exposed through include/ declrations */
- if (unlikely
- (!param_disable_hw_scan && (priv->status & STATUS_SCANNING))) {
- IWL_DEBUG_MAC80211("leave - scanning\n");
- mutex_unlock(&priv->mutex);
- return 0;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- ch_info = iwl_get_channel_info(priv, conf->phymode, conf->channel);
- if (!is_channel_valid(ch_info)) {
- IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this SKU.\n",
- conf->channel, conf->phymode);
- IWL_DEBUG_MAC80211("leave - invalid channel\n");
- spin_unlock_irqrestore(&priv->lock, flags);
- mutex_unlock(&priv->mutex);
- return -EINVAL;
- }
-
-#if IWL == 4965
-#ifdef CONFIG_IWLWIFI_HT
- /* if we are switching fron ht to 2.4 clear flags
- * from any ht related info since 2.4 does not
- * support ht */
- if (is_channel_bg_band(ch_info) &&
- (priv->staging_rxon.channel != conf->channel))
- priv->staging_rxon.flags = 0;
-#endif /* CONFIG_IWLWIFI_HT */
-#endif /* IWL == 4965 */
-
- iwl_set_rxon_channel(priv, conf->phymode, conf->channel);
-
- iwl_set_flags_for_phymode(priv, conf->phymode);
-
- /* The list of supported rates and rate mask can be different
- * for each phymode; since the phymode may have changed, reset
- * the rate mask to what mac80211 lists */
- iwl_set_rate(priv);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl_radio_kill_sw(priv, !conf->radio_enabled);
-
- if (!conf->radio_enabled) {
- IWL_DEBUG_MAC80211("leave - radio disabled\n");
- mutex_unlock(&priv->mutex);
- return 0;
- }
-
- if (priv->status & STATUS_RF_KILL_MASK) {
- IWL_DEBUG_MAC80211("leave - RF kill\n");
- mutex_unlock(&priv->mutex);
- return -EIO;
- }
-
- iwl_set_rate(priv);
-
- if (memcmp(&priv->active_rxon,
- &priv->staging_rxon, sizeof(priv->staging_rxon)))
- iwl_commit_rxon(priv);
- else
- IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
-
- IWL_DEBUG_MAC80211("leave\n");
-
- mutex_unlock(&priv->mutex);
-
- return 0;
-}
-
-static int d_config_interface(struct ieee80211_hw *hw,
- int if_id, struct ieee80211_if_conf *conf)
-{
- struct iwl_priv *priv = hw->priv;
- unsigned long flags;
-
- if (conf == NULL)
- return -EIO;
-
- if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
- (!conf->beacon || !conf->ssid_len)) {
- IWL_DEBUG_MAC80211
- ("Leaving in AP mode because HostAPD is not ready.\n");
- return 0;
- }
-
- mutex_lock(&priv->mutex);
-
- IWL_DEBUG_MAC80211("enter: interface id %d\n", if_id);
- if (conf->bssid)
- IWL_DEBUG_MAC80211("bssid: " MAC_FMT "\n",
- MAC_ARG(conf->bssid));
-
- if (unlikely(priv->status & STATUS_SCANNING) &&
- !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
- IWL_DEBUG_MAC80211("leave - scanning\n");
- mutex_unlock(&priv->mutex);
- return 0;
- }
-
- if (priv->interface_id != if_id) {
- IWL_DEBUG_MAC80211("leave - interface_id != if_id\n");
- mutex_unlock(&priv->mutex);
- return 0;
- }
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
- if (!conf->bssid) {
- conf->bssid = priv->mac_addr;
- memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
- IWL_DEBUG_MAC80211("bssid was set to: " MAC_FMT "\n",
- MAC_ARG(conf->bssid));
- }
- if (priv->ibss_beacon) {
- dev_kfree_skb(priv->ibss_beacon);
- }
- priv->ibss_beacon = conf->beacon;
- }
-
- if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
- !is_multicast_ether_addr(conf->bssid)) {
- /* If there is currently a HW scan going on in the background
- * then we need to cancel it else the RXON below will fail. */
- if (iwl_scan_cancel(priv, 100)) {
- IWL_WARNING("Aborted scan still in progress "
- "after 100ms\n");
- IWL_DEBUG_MAC80211("leaving - scan abort " "failed.\n");
- mutex_unlock(&priv->mutex);
- return -EAGAIN;
- }
- memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN);
- priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
-
- /* TODO: Audit driver for usage of these members and see
- * if mac80211 deprecates them (priv->bssid looks like it
- * shouldn't be there, but I haven't scanned the IBSS code
- * to verify) - jpk */
- memcpy(priv->bssid, conf->bssid, ETH_ALEN);
-
- iwl_commit_rxon(priv);
- if (priv->iw_mode != IEEE80211_IF_TYPE_AP)
- iwl_rxon_add_station(
- priv, priv->active_rxon.bssid_addr, 1);
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
- /* FIXME: The unlock here is a patch. the Locks
- * should be moved out of iwl_bg_post_associate */
- mutex_unlock(&priv->mutex);
- iwl_bg_post_associate(&priv->post_associate);
- mutex_lock(&priv->mutex);
- }
- } else {
- priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl_commit_rxon(priv);
- }
-
- spin_lock_irqsave(&priv->lock, flags);
- if (!conf->ssid_len)
- memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
- else
- memcpy(priv->essid, conf->ssid, conf->ssid_len);
-
- priv->essid_len = conf->ssid_len;
- spin_unlock_irqrestore(&priv->lock, flags);
-
- IWL_DEBUG_MAC80211("leave\n");
- mutex_unlock(&priv->mutex);
-
- return 0;
-}
-
-static void d_remove_interface(struct ieee80211_hw *hw,
- struct ieee80211_if_init_conf *conf)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- mutex_lock(&priv->mutex);
- if (priv->interface_id == conf->if_id) {
- priv->interface_id = 0;
- memset(priv->bssid, 0, ETH_ALEN);
- memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
- priv->essid_len = 0;
- }
- mutex_unlock(&priv->mutex);
-
- IWL_DEBUG_MAC80211("leave\n");
-
-}
-
-#define IWL_DELAY_NEXT_SCAN (HZ*2)
-static int d_hw_scan(struct ieee80211_hw *hw, u8 * ssid, size_t len)
-{
- int rc = 0;
- unsigned long flags;
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- spin_lock_irqsave(&priv->lock, flags);
-
- if (!iwl_is_ready_rf(priv)) {
- rc = -EIO;
- IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
- goto out_unlock;
- }
-
- if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */
- rc = -EIO;
- IWL_ERROR("ERROR: APs don't scan\n");
- goto out_unlock;
- }
-
- /* if we just finished scan ask for delay */
- if (priv->last_scan_jiffies &&
- time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN,
- jiffies)) {
- rc = -EAGAIN;
- goto out_unlock;
- }
- if (len) {
- IWL_DEBUG_SCAN("direct scan for "
- "%s [%d]\n ",
- iwl_escape_essid(ssid, len), (int)len);
-
- priv->one_direct_scan = 1;
- priv->direct_ssid_len = (u8)
- min((u8) len, (u8) IW_ESSID_MAX_SIZE);
- memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
- }
-
- rc = iwl_scan_initiate(priv);
-
- IWL_DEBUG_MAC80211("leave\n");
-
- out_unlock:
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return rc;
-}
-
-static int d_set_key(struct ieee80211_hw *hw,
- set_key_cmd cmd,
- u8 * addr, struct ieee80211_key_conf *key, int aid)
-{
- struct iwl_priv *priv = hw->priv;
- int rc = 0;
- u8 sta_id;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- if (!param_hwcrypto) {
- IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
- return -EOPNOTSUPP;
- }
-
- sta_id = iwl_hw_find_station(priv, addr);
- if (sta_id == IWL_INVALID_STATION) {
- IWL_DEBUG_MAC80211("leave - " MAC_FMT
- " not in station map.\n", MAC_ARG(addr));
- return -EINVAL;
- }
-
- mutex_lock(&priv->mutex);
-
- if (cmd == SET_KEY)
- rc = iwl_update_sta_key_info(priv, key, sta_id);
- else
- rc = -EINVAL;
-
- if (!rc) {
- iwl_set_rxon_hwcrypto(priv, 1);
- iwl_commit_rxon(priv);
- key->flags &= (u32)
- (~IEEE80211_KEY_FORCE_SW_ENCRYPT);
- key->hw_key_idx = sta_id;
- /* TODO do we need below */
- /*
- * conf->sw_encrypt = 0;
- * conf->sw_decrypt = 0;
- */
- IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
- }
-
- IWL_DEBUG_MAC80211("leave\n");
- mutex_unlock(&priv->mutex);
-
- return rc;
-}
-
-static int d_conf_tx(struct ieee80211_hw *hw, int queue,
- const struct ieee80211_tx_queue_params *params)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- if (!iwl_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211("leave - RF not ready\n");
- return -EIO;
- }
-
- if (queue >= AC_NUM) {
- IWL_DEBUG_MAC80211("leave - queue >= AC_NUM\n");
- return 0;
- }
- IWL_DEBUG_MAC80211("leave\n");
- return 0;
-}
-
-static int d_get_tx_stats(struct ieee80211_hw *hw,
- struct ieee80211_tx_queue_stats *stats)
-{
- struct iwl_priv *priv = hw->priv;
- int i, avail;
- struct iwl_tx_queue *txq;
- struct iwl_queue *q;
- unsigned long flags;
-
- IWL_DEBUG_MAC80211("enter\n");
-
- if (!iwl_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211("leave - RF not ready\n");
- return -EIO;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- for (i = 0; i < AC_NUM; i++) {
- txq = &priv->txq[i];
- q = &txq->q;
- avail = iwl_queue_space(q);
-
- stats->data[i].len = q->n_window - avail;
- stats->data[i].limit = q->n_window - q->high_mark;
- stats->data[i].count = q->n_window;
-
- }
- spin_unlock_irqrestore(&priv->lock, flags);
-
- IWL_DEBUG_MAC80211("leave\n");
-
- return 0;
-}
-
-static int d_get_stats(struct ieee80211_hw *hw,
- struct ieee80211_low_level_stats *stats)
-{
- IWL_DEBUG_MAC80211("enter\n");
- IWL_DEBUG_MAC80211("leave\n");
-
- return 0;
-}
-
-static u64 d_get_tsf(struct ieee80211_hw *hw)
-{
- IWL_DEBUG_MAC80211("enter\n");
- IWL_DEBUG_MAC80211("leave\n");
-
- return 0;
-}
-
-static void d_reset_tsf(struct ieee80211_hw *hw)
-{
- struct iwl_priv *priv = hw->priv;
- unsigned long flags;
-
- mutex_lock(&priv->mutex);
- IWL_DEBUG_MAC80211("enter\n");
-
-#if IWL == 4965
-#ifdef CONFIG_IWLWIFI_HT
- spin_lock_irqsave(&priv->lock, flags);
- memset(&priv->current_assoc_ht, 0, sizeof(struct sta_ht_info));
- spin_unlock_irqrestore(&priv->lock, flags);
-#endif /* CONFIG_IWLWIFI_HT */
-#endif /* IWL == 4965 */
-
- cancel_delayed_work(&priv->post_associate);
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->assoc_id = 0;
- priv->assoc_capability = 0;
- priv->call_post_assoc_from_beacon = 0;
- priv->assoc_station_added = 0;
-
- /* new association get rid of ibss beacon skb */
- if (priv->ibss_beacon)
- dev_kfree_skb(priv->ibss_beacon);
-
- priv->ibss_beacon = NULL;
-
- priv->beacon_int = priv->hw->conf.beacon_int;
- priv->timestamp1 = 0;
- priv->timestamp0 = 0;
- if ((priv->iw_mode == IEEE80211_IF_TYPE_STA))
- priv->beacon_int = 0;
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* Per mac80211.h: This is only used in IBSS mode... */
- if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
- IWL_DEBUG_MAC80211("leave - not in IBSS\n");
- mutex_unlock(&priv->mutex);
- return;
- }
-
- if (!iwl_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211("leave - not ready\n");
- mutex_unlock(&priv->mutex);
- return;
- }
-
- priv->only_active_channel = 0;
-
- iwl_set_rate(priv);
-
- mutex_unlock(&priv->mutex);
-
- IWL_DEBUG_MAC80211("leave\n");
-
-}
-
-static int d_beacon_update(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_control *control)
-{
- struct iwl_priv *priv = hw->priv;
- unsigned long flags;
-
- mutex_lock(&priv->mutex);
- IWL_DEBUG_MAC80211("enter\n");
-
- if (!iwl_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211("leave - RF not ready\n");
- mutex_unlock(&priv->mutex);
- return -EIO;
- }
-
- if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
- IWL_DEBUG_MAC80211("leave - not IBSS\n");
- mutex_unlock(&priv->mutex);
- return -EIO;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- if (priv->ibss_beacon)
- dev_kfree_skb(priv->ibss_beacon);
-
- priv->ibss_beacon = skb;
-
- priv->assoc_id = 0;
-
- IWL_DEBUG_MAC80211("leave\n");
- spin_unlock_irqrestore(&priv->lock, flags);
-
- queue_work(priv->workqueue, &priv->post_associate);
-
- mutex_unlock(&priv->mutex);
-
- return 0;
-}
-
-#if IWL == 4965
-#ifdef CONFIG_IWLWIFI_HT
-union ht_cap_info {
- struct {
- u16 advanced_coding_cap :1;
- u16 supported_chan_width_set :1;
- u16 mimo_power_save_mode :2;
- u16 green_field :1;
- u16 short_GI20 :1;
- u16 short_GI40 :1;
- u16 tx_stbc :1;
- u16 rx_stbc :1;
- u16 beam_forming :1;
- u16 delayed_ba :1;
- u16 maximal_amsdu_size :1;
- u16 cck_mode_at_40MHz :1;
- u16 psmp_support :1;
- u16 stbc_ctrl_frame_support :1;
- u16 sig_txop_protection_support :1;
- };
- u16 val;
-}__attribute__ ((packed));
-
-union ht_param_info{
- struct {
- u8 max_rx_ampdu_factor :2;
- u8 mpdu_density :3;
- u8 reserved :3;
- };
- u8 val;
-}__attribute__ ((packed));
-
-union ht_exra_param_info{
- struct {
- u8 ext_chan_offset :2;
- u8 tx_chan_width :1;
- u8 rifs_mode :1;
- u8 controlled_access_only :1;
- u8 service_interval_granularity :3;
- };
- u8 val;
-}__attribute__ ((packed));
-
-union ht_operation_mode{
- struct {
- u16 op_mode :2;
- u16 non_GF :1;
- u16 reserved :13;
- };
- u16 val;
-}__attribute__ ((packed));
-
-static int d_conf_ht(struct ieee80211_hw *hw,
- struct ieee80211_ht_capability *ht_cap_param,
- struct ieee80211_ht_additional_info *ht_extra_param)
-{
- struct iwl_priv *priv = hw->priv;
- struct sta_ht_info *ht_info = &priv->current_assoc_ht;
- union ht_cap_info cap;
- union ht_operation_mode op_mode;
- union ht_param_info param_info;
- union ht_exra_param_info extra_param_info;
-
- IWL_DEBUG_MAC80211("enter: \n");
- cap.val = (u16) le16_to_cpu(ht_cap_param->capabilities_info);
- op_mode.val = (u16) le16_to_cpu(ht_extra_param->operation_mode);
- param_info.val = ht_cap_param->mac_ht_params_info;
- extra_param_info.val = ht_extra_param->ht_param;
-
- ht_info->is_ht = 1;
- ht_info->ampdu_factor = param_info.max_rx_ampdu_factor;
- ht_info->control_chan = ht_extra_param->control_chan;
- ht_info->is_green_field = cap.green_field;
- if (cap.short_GI20)
- ht_info->sgf |= 0x1;
- if (cap.short_GI40)
- ht_info->sgf |= 0x2;
- ht_info->operating_mode = op_mode.op_mode;
- ht_info->mpdu_density = param_info.mpdu_density;
- ht_info->max_amsdu_size = cap.maximal_amsdu_size;
- ht_info->supported_chan_width = cap.supported_chan_width_set;
- ht_info->extension_chan_offset = extra_param_info.ext_chan_offset;
- ht_info->tx_mimo_ps_mode = cap.mimo_power_save_mode;
-
- memcpy(ht_info->supp_rates, ht_cap_param->supported_mcs_set, 16);
-
- priv->active_rate_ht[0] = ht_info->supp_rates[0];
- priv->active_rate_ht[1] = ht_info->supp_rates[1];
-
- iwl4965_set_rxon_chain(priv);
-
- if (priv && priv->assoc_id &&
- (priv->iw_mode == IEEE80211_IF_TYPE_STA)) {
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- if (priv->beacon_int)
- queue_work(priv->workqueue, &priv->post_associate.work);
- else
- priv->call_post_assoc_from_beacon = 1;
- spin_unlock_irqrestore(&priv->lock, flags);
- }
-
- IWL_DEBUG_MAC80211("leave: control channel %d\n",
- ht_extra_param->control_chan);
- return 0;
-}
-
-static void d_get_ht_capab(struct ieee80211_hw *hw,
- struct ieee80211_ht_capability *ht_cap_param)
-{
- union ht_cap_info cap;
- union ht_param_info param_info;
-
- IWL_DEBUG_MAC80211("enter: \n");
- cap.maximal_amsdu_size = HT_IE_MAX_AMSDU_SIZE_4K;
- cap.green_field = 1;
- cap.short_GI20 = 1;
- cap.short_GI40 = 1;
- cap.supported_chan_width_set = 1;
- cap.mimo_power_save_mode = 0x3;
-
- param_info.max_rx_ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
- param_info.mpdu_density = CFG_HT_MPDU_DENSITY_DEF;
- ht_cap_param->capabilities_info = (__le16) cpu_to_le16(cap.val);
- ht_cap_param->mac_ht_params_info = (u8) param_info.val;
-
- ht_cap_param->supported_mcs_set[0] = 0xff;
- ht_cap_param->supported_mcs_set[1] = 0xff;
- ht_cap_param->supported_mcs_set[4] =
- (cap.supported_chan_width_set) ? 0x1: 0x0;
-
- IWL_DEBUG_MAC80211("leave: \n");
-}
-
-
-
-#endif /*CONFIG_IWLWIFI_HT*/
-
-#ifdef CONFIG_IWLWIFI_HT_AGG
-
-static int kdrn_txq_ctx_activate_free(struct iwl_priv *priv);
-static int d_ht_tx_agg_start(struct ieee80211_hw *hw, u8 *da, u16 tid,
- u16 *start_seq_num)
-{
-
- struct iwl_priv *priv = hw->priv;
- int sta_id;
- int tx_fifo;
- int txq_id;
- int ssn = -1;
- unsigned long flags;
- struct ipw_tid_data *tid_data;
-
- if (likely(tid < ARRAY_SIZE(default_tid_to_ac)))
- tx_fifo = default_tid_to_ac[tid];
- else
- return -EINVAL;
-
- IWL_DEBUG_MAC80211("iwl-AGG d_ht_tx_agg_start on da=" MAC_FMT " tid="
- "%d\n", MAC_ARG(da), tid);
-
- sta_id = ipw_find_station(priv, da);
- if (sta_id == IPW_INVALID_STATION)
- return -ENXIO;
-
- txq_id = kdrn_txq_ctx_activate_free(priv);
- if (txq_id == -1)
- return -ENXIO;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- tid_data = &priv->stations[sta_id].tid[tid];
- ssn = SEQ_TO_SN(tid_data->seq_number);
- tid_data->txq_id = txq_id;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- *start_seq_num = ssn;
- return kdrn_tx_queue_agg_enable(priv, txq_id, tx_fifo, sta_id, tid,
- ssn);
-}
-
-
-static int d_ht_tx_agg_stop(struct ieee80211_hw *hw,
- u8 *da, u16 tid, int generator)
-{
-
- struct iwl_priv *priv = hw->priv;
- int tx_fifo_id, sta_id, ssn = -1;
- if (!da) {
- IWL_ERROR("%s: da = NULL\n", __func__);
- return -EINVAL;
- }
-
- if (likely(tid < ARRAY_SIZE(default_tid_to_ac)))
- tx_fifo_id = default_tid_to_ac[tid];
- else
- return -EINVAL;
-
- sta_id = ipw_find_station(priv, da);
-
- if (sta_id == IPW_INVALID_STATION)
- return -ENXIO;
-
- ssn = (priv->stations[sta_id].tid[tid].seq_number &
- IEEE80211_SCTL_SEQ) >> 4;
-
- kdrn_tx_queue_agg_disable(priv, 7, ssn, tx_fifo_id);
- IWL_DEBUG_MAC80211("iwl-AGG d_ht_tx_agg_stop on da=" MAC_FMT " tid="
- "%d\n", MAC_ARG(da), tid);
-
- return 0;
-}
-
-#endif /*CONFIG_IWLWIFI_HT_AGG*/
-#endif /*IWL == 4965*/
-/*****************************************************************************
- *
- * sysfs attributes
- *
- *****************************************************************************/
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-
-/*
- * The following adds a new attribute to the sysfs representation
- * of this device driver (i.e. a new file in /sys/bus/pci/drivers/ipw/)
- * used for controlling the debug level.
- *
- * See the level definitions in ipw for details.
- */
-
-static ssize_t show_debug_level(struct device_driver *d, char *buf)
-{
- return sprintf(buf, "0x%08X\n", iwl_debug_level);
-}
-static ssize_t store_debug_level(struct device_driver *d,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
- u32 val;
-
- val = simple_strtoul(p, &p, 0);
- if (p == buf)
- printk(KERN_INFO DRV_NAME
- ": %s is not in hex or decimal form.\n", buf);
- else
- iwl_debug_level = val;
-
- return strnlen(buf, count);
-}
-
-static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
- show_debug_level, store_debug_level);
-
-#endif /* CONFIG_IWLWIFI_DEBUG */
-
-static ssize_t show_rf_kill(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- /*
- * 0 - RF kill not enabled
- * 1 - SW based RF kill active (sysfs)
- * 2 - HW based RF kill active
- * 3 - Both HW and SW based RF kill active
- */
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
- ((priv->status & STATUS_RF_KILL_HW) ? 0x2 : 0x0);
-
- return sprintf(buf, "%i\n", val);
-}
-
-static ssize_t store_rf_kill(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
-
- mutex_lock(&priv->mutex);
- iwl_radio_kill_sw(priv, buf[0] == '1');
- mutex_unlock(&priv->mutex);
-
- return count;
-}
-
-static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
-
-static ssize_t show_temperature(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
-
- if (!iwl_is_alive(priv))
- return -EAGAIN;
-
- return sprintf(buf, "%d\n", iwl_hw_get_temperature(priv));
-}
-
-static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
-
-static ssize_t show_rs_window(struct device *d,
- struct device_attribute *attr,
- char *buf)
-{
- struct iwl_priv *priv = d->driver_data;
- return iwl_fill_rs_info(priv->hw, buf, IWL_AP_ID);
-}
-static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL);
-
-static ssize_t show_tx_power(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- return sprintf(buf, "%d\n", priv->user_txpower_limit);
-}
-
-static ssize_t store_tx_power(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- char *p = (char *)buf;
- u32 val;
-
- val = simple_strtoul(p, &p, 10);
- if (p == buf)
- printk(KERN_INFO DRV_NAME
- ": %s is not in decimal form.\n", buf);
- else
- iwl_hw_reg_set_txpower(priv, val);
-
- return count;
-}
-
-static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
-
-static ssize_t show_flags(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
-
- return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
-}
-
-static ssize_t store_flags(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- u16 flags = simple_strtoul(buf, NULL, 0);
-
- mutex_lock(&priv->mutex);
- if (priv->staging_rxon.flags != flags) {
- /* Cancel any currently running scans... */
- if (iwl_scan_cancel(priv, 100)) {
- IWL_WARNING("Could not cancel scan.\n");
- } else {
- IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
- flags);
- priv->staging_rxon.flags = flags;
- iwl_commit_rxon(priv);
- }
- }
- mutex_unlock(&priv->mutex);
-
- return count;
-}
-
-static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
-
-static ssize_t show_filter_flags(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
-
- return sprintf(buf, "0x%04X\n", priv->active_rxon.filter_flags);
-}
-
-static ssize_t store_filter_flags(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- u16 filter_flags = simple_strtoul(buf, NULL, 0);
-
- mutex_lock(&priv->mutex);
- if (priv->staging_rxon.filter_flags != filter_flags) {
- /* Cancel any currently running scans... */
- if (iwl_scan_cancel(priv, 100)) {
- IWL_WARNING("Could not cancel scan.\n");
- } else {
- IWL_DEBUG_INFO("Committing rxon.filter_flags = "
- "0x%04X\n", filter_flags);
- priv->staging_rxon.filter_flags = filter_flags;
- iwl_commit_rxon(priv);
- }
- }
- mutex_unlock(&priv->mutex);
-
- return count;
-}
-
-static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
- store_filter_flags);
-
-static ssize_t show_tune(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
-
- return sprintf(buf, "0x%04X\n",
- (priv->phymode << 8) | priv->active_rxon.channel);
-}
-
-static void iwl_set_flags_for_phymode(struct iwl_priv *priv, u8 phymode);
-
-static ssize_t store_tune(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- char *p = (char *)buf;
- u16 tune = simple_strtoul(p, &p, 0);
- u8 phymode = (tune >> 8) & 0xff;
- u8 channel = tune & 0xff;
-
- IWL_DEBUG_INFO("Tune request to:%d channel:%d\n", phymode, channel);
-
- mutex_lock(&priv->mutex);
- if ((priv->staging_rxon.channel != channel) ||
- (priv->phymode != phymode)) {
- const struct iwl_channel_info *ch_info;
-
- ch_info = iwl_get_channel_info(priv, phymode, channel);
- if (!ch_info) {
- IWL_WARNING("Requested invalid phymode/channel "
- "combination: %d %d\n", phymode, channel);
- mutex_unlock(&priv->mutex);
- return -EINVAL;
- }
-
- /* Cancel any currently running scans... */
- if (iwl_scan_cancel(priv, 100)) {
- IWL_WARNING("Could not cancel scan.\n");
- } else {
- IWL_DEBUG_INFO("Committing phymode and "
- "rxon.channel = %d %d\n",
- phymode, channel);
-
- iwl_set_rxon_channel(priv, phymode, channel);
- iwl_set_flags_for_phymode(priv, phymode);
-
- iwl_set_rate(priv);
- iwl_commit_rxon(priv);
- }
- }
- mutex_unlock(&priv->mutex);
-
- return count;
-}
-
-static DEVICE_ATTR(tune, S_IWUSR | S_IRUGO, show_tune, store_tune);
-
-#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
-
-static ssize_t show_measurement(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- struct iwl_spectrum_notification measure_report;
-
- u32 size = sizeof(measure_report), len = 0, ofs = 0;
- u8 *data = (u8 *) & measure_report;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- if (!(priv->measurement_status & MEASUREMENT_READY)) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return 0;
- }
- memcpy(&measure_report, &priv->measure_report, size);
- priv->measurement_status = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
-
- while (size && (PAGE_SIZE - len)) {
- len +=
- snprint_line(&buf[len], PAGE_SIZE - len,
- &data[ofs], min(size, 16U), ofs);
- if (PAGE_SIZE - len)
- buf[len++] = '\n';
-
- ofs += 16;
- size -= min(size, 16U);
- }
-
- return len;
-}
-
-static ssize_t store_measurement(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- struct ieee80211_measurement_params params = {
- .channel = priv->active_rxon.channel,
- .start_time = priv->last_tsf,
- .duration = 1,
- };
- u8 type = IWL_MEASURE_BASIC;
- u8 buffer[32];
- u8 channel;
-
- if (count) {
- char *p = buffer;
- strncpy(buffer, buf, min(sizeof(buffer), count));
- channel = simple_strtoul(p, NULL, 0);
- if (channel)
- params.channel = channel;
-
- p = buffer;
- while (*p && *p != ' ')
- p++;
- if (*p)
- type = simple_strtoul(p + 1, NULL, 0);
- }
-
- IWL_DEBUG_INFO("Invoking measurement of type %d on "
- "channel %d (for '%s')\n", type, params.channel, buf);
- iwl_get_measurement(priv, ¶ms, type);
-
- return count;
-}
-
-static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
- show_measurement, store_measurement);
-#endif /* CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT */
-
-static ssize_t show_rate(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- unsigned long flags;
- int i;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
- i = priv->stations[IWL_STA_ID].current_rate.s.rate;
- else
- i = priv->stations[IWL_AP_ID].current_rate.s.rate;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- i = iwl_rate_index_from_plcp(i);
- if (i == -1)
- return sprintf(buf, "0\n");
-
- return sprintf(buf, "%d%s\n",
- (iwl_rates[i].ieee >> 1),
- (iwl_rates[i].ieee % 2) ? ".5" : "");
-}
-
-static DEVICE_ATTR(rate, S_IRUSR, show_rate, NULL);
-
-static ssize_t store_retry_rate(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
-
- priv->retry_rate = simple_strtoul(buf, NULL, 0);
- if (priv->retry_rate <= 0)
- priv->retry_rate = 1;
-
- return count;
-}
-
-static ssize_t show_retry_rate(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- return sprintf(buf, "%d", priv->retry_rate);
-}
-
-static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
- store_retry_rate);
-
-static ssize_t store_power_level(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- int rc;
- int mode;
-
- mode = simple_strtoul(buf, NULL, 0);
- mutex_lock(&priv->mutex);
-
- if (!iwl_is_ready(priv)) {
- rc = -EAGAIN;
- goto out;
- }
-
- if ((mode < 1) || (mode > IWL_POWER_LIMIT) || (mode == IWL_POWER_AC))
- mode = IWL_POWER_AC;
- else
- mode |= IWL_POWER_ENABLED;
-
- if (mode != priv->power_mode) {
- rc = iwl_send_power_mode(priv, IWL_POWER_LEVEL(mode));
- if (rc) {
- IWL_DEBUG_MAC80211("failed setting power mode.\n");
- goto out;
- }
- priv->power_mode = mode;
- }
-
- rc = count;
-
- out:
- mutex_unlock(&priv->mutex);
- return rc;
-}
-
-#define MAX_WX_STRING 80
-
-/* Values are in microsecond */
-static const s32 timeout_duration[] = {
- 350000,
- 250000,
- 75000,
- 37000,
- 25000,
-};
-static const s32 period_duration[] = {
- 400000,
- 700000,
- 1000000,
- 1000000,
- 1000000
-};
-
-static ssize_t show_power_level(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- int level = IWL_POWER_LEVEL(priv->power_mode);
- char *p = buf;
-
- p += sprintf(p, "%d ", level);
- switch (level) {
- case IWL_POWER_MODE_CAM:
- case IWL_POWER_AC:
- p += sprintf(p, "(AC)");
- break;
- case IWL_POWER_BATTERY:
- p += sprintf(p, "(BATTERY)");
- break;
- default:
- p += sprintf(p,
- "(Timeout %dms, Period %dms)",
- timeout_duration[level - 1] / 1000,
- period_duration[level - 1] / 1000);
- }
-
- if (!(priv->power_mode & IWL_POWER_ENABLED))
- p += sprintf(p, " OFF\n");
- else
- p += sprintf(p, " \n");
-
- return (p - buf + 1);
-
-}
-
-static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
- store_power_level);
-
-static ssize_t show_channels(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- int len = 0, i;
- struct ieee80211_channel *channels = NULL;
- const struct ieee80211_hw_mode *hw_mode = NULL;
- int count = 0;
-
- if (!iwl_is_ready(priv))
- return -EAGAIN;
-
- hw_mode = iwl_get_hw_mode(priv, MODE_IEEE80211G);
- if (!hw_mode)
- hw_mode = iwl_get_hw_mode(priv, MODE_IEEE80211B);
- if (hw_mode) {
- channels = hw_mode->channels;
- count = hw_mode->num_channels;
- }
-
- len +=
- sprintf(&buf[len],
- "Displaying %d channels in 2.4GHz band "
- "(802.11bg):\n", count);
-
- for (i = 0; i < count; i++) {
- len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
- channels[i].chan,
- channels[i].power_level,
- channels[i].
- flag & IEEE80211_CHAN_W_RADAR_DETECT ?
- " (IEEE 802.11h required)" : "",
- (!(channels[i].flag & IEEE80211_CHAN_W_IBSS)
- || (channels[i].
- flag &
- IEEE80211_CHAN_W_RADAR_DETECT)) ? "" :
- ", IBSS",
- channels[i].
- flag & IEEE80211_CHAN_W_ACTIVE_SCAN ?
- "active/passive" : "passive only");
- }
-
- hw_mode = iwl_get_hw_mode(priv, MODE_IEEE80211A);
- if (hw_mode) {
- channels = hw_mode->channels;
- count = hw_mode->num_channels;
- } else {
- channels = NULL;
- count = 0;
- }
-
- len +=
- sprintf(&buf[len],
- "Displaying %d channels in 5.2GHz band "
- "(802.11a):\n", count);
-
- for (i = 0; i < count; i++) {
- len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
- channels[i].chan,
- channels[i].power_level,
- channels[i].
- flag & IEEE80211_CHAN_W_RADAR_DETECT ?
- " (IEEE 802.11h required)" : "",
- (!(channels[i].flag & IEEE80211_CHAN_W_IBSS)
- || (channels[i].
- flag &
- IEEE80211_CHAN_W_RADAR_DETECT)) ? "" :
- ", IBSS",
- channels[i].
- flag & IEEE80211_CHAN_W_ACTIVE_SCAN ?
- "active/passive" : "passive only");
- }
-
- return len;
-}
-
-static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
-
-static ssize_t show_statistics(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- u32 size = sizeof(struct iwl_notif_statistics);
- u32 len = 0, ofs = 0;
- u8 *data = (u8 *) & priv->statistics;
- int rc = 0;
-
- if (!iwl_is_alive(priv))
- return -EAGAIN;
-
- mutex_lock(&priv->mutex);
- rc = iwl_send_statistics_request(priv);
- mutex_unlock(&priv->mutex);
-
- if (rc) {
- len = sprintf(buf,
- "Error sending statistics request: 0x%08X\n", rc);
- return len;
- }
-
- while (size && (PAGE_SIZE - len)) {
- len +=
- snprint_line(&buf[len], PAGE_SIZE - len,
- &data[ofs], min(size, 16U), ofs);
- if (PAGE_SIZE - len)
- buf[len++] = '\n';
-
- ofs += 16;
- size -= min(size, 16U);
- }
-
- return len;
-}
-
-static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
-
-static ssize_t show_antenna(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
-
- if (!iwl_is_alive(priv))
- return -EAGAIN;
-
- return sprintf(buf, "%d\n", priv->antenna);
-}
-
-static ssize_t store_antenna(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- int ant;
- struct iwl_priv *priv = dev_get_drvdata(d);
-
- if (count == 0)
- return 0;
-
- if (sscanf(buf, "%1i", &ant) != 1) {
- IWL_DEBUG_INFO("not in hex or decimal form.\n");
- return count;
- }
-
- if ((ant >= 0) && (ant <= 2)) {
- IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant);
- priv->antenna = (enum iwl_antenna)ant;
- } else {
- IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant);
- }
-
- return count;
-}
-
-static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna);
-
-static ssize_t show_status(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
- if (!iwl_is_alive(priv))
- return -EAGAIN;
- return sprintf(buf, "0x%08x\n", (int)priv->status);
-}
-
-static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
-
-static ssize_t dump_error_log(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
-
- if (p[0] == '1')
- iwl_dump_nic_error_log((struct iwl_priv *)d->driver_data);
-
- return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
-
-static ssize_t dump_event_log(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
-
- if (p[0] == '1')
- iwl_dump_nic_event_log((struct iwl_priv *)d->driver_data);
-
- return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
-
-/*****************************************************************************
- *
- * driver setup and teardown
- *
- *****************************************************************************/
-
-static void iwl_setup_deferred_work(struct iwl_priv *priv)
-{
- priv->workqueue = create_workqueue(DRV_NAME);
-
- init_waitqueue_head(&priv->wait_command_queue);
-
- INIT_WORK(&priv->up, iwl_bg_up, priv);
- INIT_WORK(&priv->restart, iwl_bg_restart, priv);
- INIT_WORK(&priv->rx_replenish, iwl_bg_rx_replenish, priv);
- INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed, priv);
- INIT_WORK(&priv->request_scan, iwl_bg_request_scan, priv);
- INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan, priv);
- INIT_WORK(&priv->rf_kill, iwl_bg_rf_kill, priv);
- INIT_WORK(&priv->post_associate, iwl_bg_post_associate, priv);
- INIT_WORK(&priv->init_alive_start, iwl_bg_init_alive_start, priv);
- INIT_WORK(&priv->alive_start, iwl_bg_alive_start, priv);
- INIT_WORK(&priv->scan_check, iwl_bg_scan_check, priv);
-
- iwl_hw_setup_deferred_work(priv);
-
- tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
- iwl_irq_tasklet, (unsigned long)priv);
-}
-
-static void iwl_cancel_deferred_work(struct iwl_priv *priv)
-{
- iwl_hw_cancel_deferred_work(priv);
-
- cancel_delayed_work(&priv->scan_check);
- cancel_delayed_work(&priv->alive_start);
- cancel_delayed_work(&priv->post_associate);
-}
-
-static struct attribute *iwl_sysfs_entries[] = {
- &dev_attr_antenna.attr,
- &dev_attr_channels.attr,
- &dev_attr_dump_errors.attr,
- &dev_attr_dump_events.attr,
- &dev_attr_flags.attr,
- &dev_attr_filter_flags.attr,
-#ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
- &dev_attr_measurement.attr,
-#endif
- &dev_attr_power_level.attr,
- &dev_attr_rate.attr,
- &dev_attr_retry_rate.attr,
- &dev_attr_rf_kill.attr,
- &dev_attr_rs_window.attr,
- &dev_attr_statistics.attr,
- &dev_attr_status.attr,
- &dev_attr_temperature.attr,
- &dev_attr_tune.attr,
- &dev_attr_tx_power.attr,
-
- NULL
-};
-
-static struct attribute_group iwl_attribute_group = {
- .name = NULL, /* put in device directory */
- .attrs = iwl_sysfs_entries,
-};
-
-static struct ieee80211_ops iwl_hw_ops = {
- .tx = d_tx,
- .open = d_open,
- .stop = d_stop,
- .add_interface = d_add_interface,
- .remove_interface = d_remove_interface,
- .config = d_config,
- .config_interface = d_config_interface,
- .set_key = d_set_key,
- .get_stats = d_get_stats,
- .get_tx_stats = d_get_tx_stats,
- .conf_tx = d_conf_tx,
- .get_tsf = d_get_tsf,
- .reset_tsf = d_reset_tsf,
- .beacon_update = d_beacon_update,
-#if IWL == 4965
-#ifdef CONFIG_IWLWIFI_HT
- .conf_ht = d_conf_ht,
- .get_ht_capab = d_get_ht_capab,
-#ifdef CONFIG_IWLWIFI_HT_AGG
- .ht_tx_agg_start = d_ht_tx_agg_start,
- .ht_tx_agg_stop = d_ht_tx_agg_stop,
-#endif /* CONFIG_IWLWIFI_HT_AGG */
-#endif /* CONFIG_IWLWIFI_HT */
-#endif
- .hw_scan = d_hw_scan
-
-};
-
-static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- int err = 0;
- void __iomem *base;
- u32 length;
- u32 pci_id;
- struct iwl_priv *priv;
- struct ieee80211_hw *hw;
- int i;
-
- if (param_disable_hw_scan) {
- IWL_DEBUG_INFO("Disabling hw_scan\n");
- iwl_hw_ops.hw_scan = NULL;
- }
-
- /* mac80211 allocates memory for this device instance, including
- * space for this driver's private structure */
- hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwl_hw_ops);
- if (hw == NULL) {
- IWL_ERROR("Can not allocate network device\n");
- err = -ENOMEM;
- goto out;
- }
- SET_IEEE80211_DEV(hw, &pdev->dev);
-
- IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
- priv = hw->priv;
- priv->hw = hw;
-
- priv->pci_dev = pdev;
- priv->antenna = (enum iwl_antenna)param_antenna;
-#ifdef CONFIG_IWLWIFI_DEBUG
- iwl_debug_level = param_debug;
-#endif
- priv->retry_rate = 1;
-
- priv->ibss_beacon = NULL;
-
- /* Tell mac80211 and its clients (e.g. Wireless Extensions)
- * the range of signal quality values that we'll provide.
- * Negative values for level/noise indicate that we'll provide dBm.
- * For WE, at least, non-0 values here *enable* display of values
- * in app (iwconfig). */
- hw->max_rssi = -20; /* signal level, negative indicates dBm */
- hw->max_noise = -20; /* noise level, negative indicates dBm */
- hw->max_signal = 100; /* link quality indication (%) */
-
- /* Tell mac80211 our Tx characteristics */
- hw->flags = IEEE80211_HW_WEP_INCLUDE_IV |
- IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE;
- hw->queues = 4;
-
- spin_lock_init(&priv->lock);
- spin_lock_init(&priv->power_data.lock);
- spin_lock_init(&priv->sta_lock);
-#if IWL == 4965
- spin_lock_init(&priv->lq_mngr.lock);
-#endif
-
- for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++)
- INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
-
- INIT_LIST_HEAD(&priv->free_frames);
-
- mutex_init(&priv->mutex);
- if (pci_enable_device(pdev)) {
- err = -ENODEV;
- goto out_ieee80211_free_hw;
- }
-
- pci_set_master(pdev);
-
- iwl_clear_stations_table(priv);
-
- memset(&(priv->txq[0]), 0,
- sizeof(struct iwl_tx_queue) * IWL_MAX_NUM_QUEUES);
- memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
- priv->data_retry_limit = -1;
- priv->ieee_channels = NULL;
- priv->ieee_rates = NULL;
- priv->phymode = -1;
-
- err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
- if (!err)
- err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
- if (err) {
- printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
- goto out_pci_disable_device;
- }
-
- pci_set_drvdata(pdev, priv);
- err = pci_request_regions(pdev, DRV_NAME);
- if (err)
- goto out_pci_disable_device;
- /* We disable the RETRY_TIMEOUT register (0x41) to keep
- * PCI Tx retries from interfering with C3 CPU state */
- pci_write_config_byte(pdev, 0x41, 0x00);
-
- length = pci_resource_len(pdev, 0);
- priv->hw_len = length;
- base = ioremap_nocache(pci_resource_start(pdev, 0), length);
- if (!base) {
- err = -ENODEV;
- goto out_pci_release_regions;
- }
-
- priv->hw_base = base;
- IWL_DEBUG_INFO("pci_resource_len = 0x%08x\n", length);
- IWL_DEBUG_INFO("pci_resource_base = %p\n", base);
-
- /* Initialize module parameter values here */
-
- if (param_disable) {
- priv->status |= STATUS_RF_KILL_SW;
- IWL_DEBUG_INFO("Radio disabled.\n");
- }
-
- priv->iw_mode = IEEE80211_IF_TYPE_STA;
-
- pci_id =
- (priv->pci_dev->device << 16) | priv->pci_dev->subsystem_device;
-
-#if IWL == 4965
- priv->ps_mode = 0;
- priv->use_ant_b_for_management_frame = 1; /* start with ant B */
- priv->is_ht_enabled = 1;
- priv->channel_width = IWL_CHANNEL_WIDTH_40MHZ;
- priv->valid_antenna = 0x7; /* assume all 3 connected */
- priv->ps_mode = IWL_MIMO_PS_NONE;
- priv->cck_power_index_compensation = iwl_read32(
- priv, CSR_HW_REV_WA_REG);
-
- iwl4965_set_rxon_chain(priv);
-
- printk(KERN_INFO DRV_NAME
- ": Detected Intel Wireless WiFi Link 4965AGN\n");
-#else
- switch (pci_id) {
- case 0x42221005: /* 0x4222 0x8086 0x1005 is BG SKU */
- case 0x42221034: /* 0x4222 0x8086 0x1034 is BG SKU */
- case 0x42271014: /* 0x4227 0x8086 0x1014 is BG SKU */
- case 0x42221044: /* 0x4222 0x8086 0x1044 is BG SKU */
- priv->is_abg = 0;
- break;
-
- /*
- * Rest are assumed ABG SKU -- if this is not the
- * case then the card will get the wrong 'Detected'
- * line in the kernel log however the code that
- * initializes the GEO table will detect no A-band
- * channels and remove the is_abg mask.
- */
- default:
- priv->is_abg = 1;
- break;
- }
-
- printk(KERN_INFO DRV_NAME
- ": Detected Intel PRO/Wireless 3945%sBG Network Connection\n",
- priv->is_abg ? "A" : "");
-#endif
-
- /* Device-specific setup */
- if (iwl_hw_set_hw_setting(priv)) {
- IWL_ERROR("failed to set hw settings\n");
- mutex_unlock(&priv->mutex);
- goto out_iounmap;
- }
-
- iwl_set_rxon_channel(priv, MODE_IEEE80211G, 6);
- iwl_setup_deferred_work(priv);
- iwl_setup_rx_handlers(priv);
-
- priv->rates_mask = IWL_RATES_MASK;
- /* If power management is turned on, default to AC mode */
- priv->power_mode = IWL_POWER_AC;
- priv->user_txpower_limit = IWL_DEFAULT_TX_POWER;
- err = request_irq(pdev->irq, iwl_isr, IRQF_SHARED, DRV_NAME, priv);
- if (err) {
- IWL_ERROR("Error allocating IRQ %d\n", pdev->irq);
- goto out_destroy_workqueue;
- }
-
- mutex_lock(&priv->mutex);
-
- err = sysfs_create_group(&pdev->dev.kobj, &iwl_attribute_group);
- if (err) {
- IWL_ERROR("failed to create sysfs device attributes\n");
- mutex_unlock(&priv->mutex);
- goto out_release_irq;
- }
-
- /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
- * ucode filename and max sizes are card-specific. */
- err = iwl_read_ucode(priv);
- if (err) {
- IWL_ERROR("Could not read microcode: %d\n", err);
- mutex_unlock(&priv->mutex);
- goto out_pci_alloc;
- }
-
- mutex_unlock(&priv->mutex);
-
- IWL_DEBUG_INFO("Queing UP work.\n");
-
- queue_work(priv->workqueue, &priv->up);
-
- return 0;
-
- out_pci_alloc:
- iwl_dealloc_ucode_pci(priv);
-
- sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group);
-
- out_release_irq:
- free_irq(pdev->irq, priv);
-
- out_destroy_workqueue:
- destroy_workqueue(priv->workqueue);
- priv->workqueue = NULL;
- iwl_unset_hw_setting(priv);
-
- out_iounmap:
- iounmap(priv->hw_base);
- out_pci_release_regions:
- pci_release_regions(pdev);
- out_pci_disable_device:
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
- out_ieee80211_free_hw:
- ieee80211_free_hw(priv->hw);
- out:
- return err;
-}
-
-static void iwl_pci_remove(struct pci_dev *pdev)
-{
- struct iwl_priv *priv = pci_get_drvdata(pdev);
- struct list_head *p, *q;
- int i;
-
- if (!priv)
- return;
-
- IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
-
- mutex_lock(&priv->mutex);
-
- priv->status |= STATUS_EXIT_PENDING;
-
- iwl_down(priv);
-
- mutex_unlock(&priv->mutex);
-
- /* Free MAC hash list for ADHOC */
- for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) {
- list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
- list_del(p);
- kfree(list_entry(p, struct iwl_ibss_seq, list));
- }
- }
-
- sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group);
-
- iwl_dealloc_ucode_pci(priv);
-
- if (priv->rxq.bd)
- iwl_rx_queue_free(priv, &priv->rxq);
- iwl_hw_txq_ctx_free(priv);
-
- iwl_unset_hw_setting(priv);
- iwl_clear_stations_table(priv);
-
- if (priv->mac80211_registered) {
- ieee80211_unregister_hw(priv->hw);
- iwl_rate_control_unregister();
- }
-
- /* ieee80211_unregister_hw calls d_stop, which flushes
- * priv->workqueue... so we can't take down the workqueue
- * until now... */
- destroy_workqueue(priv->workqueue);
- priv->workqueue = NULL;
-
- free_irq(pdev->irq, priv);
- iounmap(priv->hw_base);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
-
- kfree(priv->channel_info);
-
- kfree(priv->ieee_channels);
- kfree(priv->ieee_rates);
-
- if (priv->ibss_beacon)
- dev_kfree_skb(priv->ibss_beacon);
-
- ieee80211_free_hw(priv->hw);
-}
-
-#ifdef CONFIG_PM
-
-static int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state)
-{
- struct iwl_priv *priv = pci_get_drvdata(pdev);
-
- mutex_lock(&priv->mutex);
-
- priv->status |= STATUS_IN_SUSPEND;
-
- /* Take down the device; powers it off, etc. */
- iwl_down(priv);
-
- if (priv->mac80211_registered)
- ieee80211_stop_queues(priv->hw);
-
- pci_save_state(pdev);
- pci_disable_device(pdev);
- pci_set_power_state(pdev, PCI_D3hot);
-
- mutex_unlock(&priv->mutex);
-
- return 0;
-}
-
-static void iwl_resume(struct iwl_priv *priv)
-{
- unsigned long flags;
-
- /* The following it a temporary work around due to the
- * suspend / resume not fully initializing the NIC correctly.
- * Without all of the following, resume will not attempt to take
- * down the NIC (it shouldn't really need to) and will just try
- * and bring the NIC back up. However that fails during the
- * ucode verification process. This then causes iwl_down to be
- * called *after* iwl_hw_nic_init() has succeeded -- which
- * then lets the next init sequence succeed. So, we've
- * replicated all of that NIC init code here... */
-
- iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
-
- iwl_hw_nic_init(priv);
-
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
- iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-
- /* tell the device to stop sending interrupts */
- iwl_disable_interrupts(priv);
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- spin_lock_irqsave(&priv->lock, flags);
- if (!iwl_grab_restricted_access(priv)) {
- iwl_write_restricted_reg(priv, ALM_APMG_CLK_DIS,
- APMG_CLK_REG_VAL_DMA_CLK_RQT);
- iwl_release_restricted_access(priv);
- }
- spin_unlock_irqrestore(&priv->lock, flags);
-
- udelay(5);
-
- iwl_hw_nic_reset(priv);
-
- /* Bring the device back up */
- priv->status &= ~STATUS_IN_SUSPEND;
- queue_work(priv->workqueue, &priv->up);
-}
-
-static int iwl_pci_resume(struct pci_dev *pdev)
-{
- struct iwl_priv *priv = pci_get_drvdata(pdev);
- int err;
-
- printk(KERN_INFO "Coming out of suspend...\n");
-
- mutex_lock(&priv->mutex);
-
- pci_set_power_state(pdev, PCI_D0);
- err = pci_enable_device(pdev);
- pci_restore_state(pdev);
-
- /*
- * Suspend/Resume resets the PCI configuration space, so we have to
- * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
- * from interfering with C3 CPU state. pci_restore_state won't help
- * here since it only restores the first 64 bytes pci config header.
- */
- pci_write_config_byte(pdev, 0x41, 0x00);
-
- iwl_resume(priv);
- mutex_unlock(&priv->mutex);
-
- return 0;
-}
-
-#endif /* CONFIG_PM */
-
-/*****************************************************************************
- *
- * driver and module entry point
- *
- *****************************************************************************/
-
-static struct pci_driver iwl_driver = {
- .name = DRV_NAME,
- .id_table = iwl_hw_card_ids,
- .probe = iwl_pci_probe,
- .remove = __devexit_p(iwl_pci_remove),
-#ifdef CONFIG_PM
- .suspend = iwl_pci_suspend,
- .resume = iwl_pci_resume,
-#endif
-};
-
-static int __init iwl_init(void)
-{
-
- int ret;
- printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
- printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
- ret = pci_register_driver(&iwl_driver);
- if (ret) {
- IWL_ERROR("Unable to initialize PCI module\n");
- return ret;
- }
-#ifdef CONFIG_IWLWIFI_DEBUG
- ret = driver_create_file(&iwl_driver.driver, &driver_attr_debug_level);
- if (ret) {
- IWL_ERROR("Unable to create driver sysfs file\n");
- pci_unregister_driver(&iwl_driver);
- return ret;
- }
-#endif
-
- return ret;
-}
-
-static void __exit iwl_exit(void)
-{
-#ifdef CONFIG_IWLWIFI_DEBUG
- driver_remove_file(&iwl_driver.driver, &driver_attr_debug_level);
-#endif
- pci_unregister_driver(&iwl_driver);
-}
-
-module_param_named(antenna, param_antenna, int, 0444);
-MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
-module_param_named(disable, param_disable, int, 0444);
-MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
-module_param_named(hwcrypto, param_hwcrypto, int, 0444);
-MODULE_PARM_DESC(hwcrypto,
- "using hardware crypto engine (default 0 [software])\n");
-module_param_named(debug, param_debug, int, 0444);
-MODULE_PARM_DESC(debug, "debug output mask");
-module_param_named(disable_hw_scan, param_disable_hw_scan, int, 0444);
-MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
-
-/* QoS */
-module_param_named(qos_enable, param_qos_enable, int, 0444);
-MODULE_PARM_DESC(qos_enable, "enable all QoS functionality");
-
-module_exit(iwl_exit);
-module_init(iwl_init);
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-commands.h b/drivers/net/wireless/iwlwifi/iwl-3945-commands.h
new file mode 100644
index 0000000..3cac2c8
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-commands.h
@@ -0,0 +1,1639 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+/*
+ * Please use this file (iwl-3945-commands.h) only for uCode API definitions.
+ * Please use iwl-3945-hw.h for hardware-related definitions.
+ * Please use iwl-3945.h for driver implementation definitions.
+ */
+
+#ifndef __iwl_3945_commands_h__
+#define __iwl_3945_commands_h__
+
+enum {
+ REPLY_ALIVE = 0x1,
+ REPLY_ERROR = 0x2,
+
+ /* RXON and QOS commands */
+ REPLY_RXON = 0x10,
+ REPLY_RXON_ASSOC = 0x11,
+ REPLY_QOS_PARAM = 0x13,
+ REPLY_RXON_TIMING = 0x14,
+
+ /* Multi-Station support */
+ REPLY_ADD_STA = 0x18,
+ REPLY_REMOVE_STA = 0x19, /* not used */
+ REPLY_REMOVE_ALL_STA = 0x1a, /* not used */
+
+ /* RX, TX, LEDs */
+ REPLY_3945_RX = 0x1b, /* 3945 only */
+ REPLY_TX = 0x1c,
+ REPLY_RATE_SCALE = 0x47, /* 3945 only */
+ REPLY_LEDS_CMD = 0x48,
+ REPLY_TX_LINK_QUALITY_CMD = 0x4e, /* 4965 only */
+
+ /* 802.11h related */
+ RADAR_NOTIFICATION = 0x70, /* not used */
+ REPLY_QUIET_CMD = 0x71, /* not used */
+ REPLY_CHANNEL_SWITCH = 0x72,
+ CHANNEL_SWITCH_NOTIFICATION = 0x73,
+ REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74,
+ SPECTRUM_MEASURE_NOTIFICATION = 0x75,
+
+ /* Power Management */
+ POWER_TABLE_CMD = 0x77,
+ PM_SLEEP_NOTIFICATION = 0x7A,
+ PM_DEBUG_STATISTIC_NOTIFIC = 0x7B,
+
+ /* Scan commands and notifications */
+ REPLY_SCAN_CMD = 0x80,
+ REPLY_SCAN_ABORT_CMD = 0x81,
+ SCAN_START_NOTIFICATION = 0x82,
+ SCAN_RESULTS_NOTIFICATION = 0x83,
+ SCAN_COMPLETE_NOTIFICATION = 0x84,
+
+ /* IBSS/AP commands */
+ BEACON_NOTIFICATION = 0x90,
+ REPLY_TX_BEACON = 0x91,
+ WHO_IS_AWAKE_NOTIFICATION = 0x94, /* not used */
+
+ /* Miscellaneous commands */
+ QUIET_NOTIFICATION = 0x96, /* not used */
+ REPLY_TX_PWR_TABLE_CMD = 0x97,
+ MEASURE_ABORT_NOTIFICATION = 0x99, /* not used */
+
+ /* Bluetooth device coexistance config command */
+ REPLY_BT_CONFIG = 0x9b,
+
+ /* Statistics */
+ REPLY_STATISTICS_CMD = 0x9c,
+ STATISTICS_NOTIFICATION = 0x9d,
+
+ /* RF-KILL commands and notifications */
+ REPLY_CARD_STATE_CMD = 0xa0,
+ CARD_STATE_NOTIFICATION = 0xa1,
+
+ /* Missed beacons notification */
+ MISSED_BEACONS_NOTIFICATION = 0xa2,
+
+ REPLY_MAX = 0xff
+};
+
+/******************************************************************************
+ * (0)
+ * Commonly used structures and definitions:
+ * Command header, txpower
+ *
+ *****************************************************************************/
+
+/* iwl3945_cmd_header flags value */
+#define IWL_CMD_FAILED_MSK 0x40
+
+/**
+ * struct iwl3945_cmd_header
+ *
+ * This header format appears in the beginning of each command sent from the
+ * driver, and each response/notification received from uCode.
+ */
+struct iwl3945_cmd_header {
+ u8 cmd; /* Command ID: REPLY_RXON, etc. */
+ u8 flags; /* IWL_CMD_* */
+ /*
+ * The driver sets up the sequence number to values of its chosing.
+ * uCode does not use this value, but passes it back to the driver
+ * when sending the response to each driver-originated command, so
+ * the driver can match the response to the command. Since the values
+ * don't get used by uCode, the driver may set up an arbitrary format.
+ *
+ * There is one exception: uCode sets bit 15 when it originates
+ * the response/notification, i.e. when the response/notification
+ * is not a direct response to a command sent by the driver. For
+ * example, uCode issues REPLY_3945_RX when it sends a received frame
+ * to the driver; it is not a direct response to any driver command.
+ *
+ * The Linux driver uses the following format:
+ *
+ * 0:7 index/position within Tx queue
+ * 8:13 Tx queue selection
+ * 14:14 driver sets this to indicate command is in the 'huge'
+ * storage at the end of the command buffers, i.e. scan cmd
+ * 15:15 uCode sets this in uCode-originated response/notification
+ */
+ __le16 sequence;
+
+ /* command or response/notification data follows immediately */
+ u8 data[0];
+} __attribute__ ((packed));
+
+/**
+ * struct iwl3945_tx_power
+ *
+ * Used in REPLY_TX_PWR_TABLE_CMD, REPLY_SCAN_CMD, REPLY_CHANNEL_SWITCH
+ *
+ * Each entry contains two values:
+ * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained
+ * linear value that multiplies the output of the digital signal processor,
+ * before being sent to the analog radio.
+ * 2) Radio gain. This sets the analog gain of the radio Tx path.
+ * It is a coarser setting, and behaves in a logarithmic (dB) fashion.
+ *
+ * Driver obtains values from struct iwl3945_tx_power power_gain_table[][].
+ */
+struct iwl3945_tx_power {
+ u8 tx_gain; /* gain for analog radio */
+ u8 dsp_atten; /* gain for DSP */
+} __attribute__ ((packed));
+
+/**
+ * struct iwl3945_power_per_rate
+ *
+ * Used in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
+ */
+struct iwl3945_power_per_rate {
+ u8 rate; /* plcp */
+ struct iwl3945_tx_power tpc;
+ u8 reserved;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (0a)
+ * Alive and Error Commands & Responses:
+ *
+ *****************************************************************************/
+
+#define UCODE_VALID_OK __constant_cpu_to_le32(0x1)
+#define INITIALIZE_SUBTYPE (9)
+
+/*
+ * ("Initialize") REPLY_ALIVE = 0x1 (response only, not a command)
+ *
+ * uCode issues this "initialize alive" notification once the initialization
+ * uCode image has completed its work, and is ready to load the runtime image.
+ * This is the *first* "alive" notification that the driver will receive after
+ * rebooting uCode; the "initialize" alive is indicated by subtype field == 9.
+ *
+ * See comments documenting "BSM" (bootstrap state machine).
+ */
+struct iwl3945_init_alive_resp {
+ u8 ucode_minor;
+ u8 ucode_major;
+ __le16 reserved1;
+ u8 sw_rev[8];
+ u8 ver_type;
+ u8 ver_subtype; /* "9" for initialize alive */
+ __le16 reserved2;
+ __le32 log_event_table_ptr;
+ __le32 error_event_table_ptr;
+ __le32 timestamp;
+ __le32 is_valid;
+} __attribute__ ((packed));
+
+
+/**
+ * REPLY_ALIVE = 0x1 (response only, not a command)
+ *
+ * uCode issues this "alive" notification once the runtime image is ready
+ * to receive commands from the driver. This is the *second* "alive"
+ * notification that the driver will receive after rebooting uCode;
+ * this "alive" is indicated by subtype field != 9.
+ *
+ * See comments documenting "BSM" (bootstrap state machine).
+ *
+ * This response includes two pointers to structures within the device's
+ * data SRAM (access via HBUS_TARG_MEM_* regs) that are useful for debugging:
+ *
+ * 1) log_event_table_ptr indicates base of the event log. This traces
+ * a 256-entry history of uCode execution within a circular buffer.
+ *
+ * 2) error_event_table_ptr indicates base of the error log. This contains
+ * information about any uCode error that occurs.
+ *
+ * The Linux driver can print both logs to the system log when a uCode error
+ * occurs.
+ */
+struct iwl3945_alive_resp {
+ u8 ucode_minor;
+ u8 ucode_major;
+ __le16 reserved1;
+ u8 sw_rev[8];
+ u8 ver_type;
+ u8 ver_subtype; /* not "9" for runtime alive */
+ __le16 reserved2;
+ __le32 log_event_table_ptr; /* SRAM address for event log */
+ __le32 error_event_table_ptr; /* SRAM address for error log */
+ __le32 timestamp;
+ __le32 is_valid;
+} __attribute__ ((packed));
+
+union tsf {
+ u8 byte[8];
+ __le16 word[4];
+ __le32 dw[2];
+};
+
+/*
+ * REPLY_ERROR = 0x2 (response only, not a command)
+ */
+struct iwl3945_error_resp {
+ __le32 error_type;
+ u8 cmd_id;
+ u8 reserved1;
+ __le16 bad_cmd_seq_num;
+ __le16 reserved2;
+ __le32 error_info;
+ union tsf timestamp;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (1)
+ * RXON Commands & Responses:
+ *
+ *****************************************************************************/
+
+/*
+ * Rx config defines & structure
+ */
+/* rx_config device types */
+enum {
+ RXON_DEV_TYPE_AP = 1,
+ RXON_DEV_TYPE_ESS = 3,
+ RXON_DEV_TYPE_IBSS = 4,
+ RXON_DEV_TYPE_SNIFFER = 6,
+};
+
+/* rx_config flags */
+/* band & modulation selection */
+#define RXON_FLG_BAND_24G_MSK __constant_cpu_to_le32(1 << 0)
+#define RXON_FLG_CCK_MSK __constant_cpu_to_le32(1 << 1)
+/* auto detection enable */
+#define RXON_FLG_AUTO_DETECT_MSK __constant_cpu_to_le32(1 << 2)
+/* TGg protection when tx */
+#define RXON_FLG_TGG_PROTECT_MSK __constant_cpu_to_le32(1 << 3)
+/* cck short slot & preamble */
+#define RXON_FLG_SHORT_SLOT_MSK __constant_cpu_to_le32(1 << 4)
+#define RXON_FLG_SHORT_PREAMBLE_MSK __constant_cpu_to_le32(1 << 5)
+/* antenna selection */
+#define RXON_FLG_DIS_DIV_MSK __constant_cpu_to_le32(1 << 7)
+#define RXON_FLG_ANT_SEL_MSK __constant_cpu_to_le32(0x0f00)
+#define RXON_FLG_ANT_A_MSK __constant_cpu_to_le32(1 << 8)
+#define RXON_FLG_ANT_B_MSK __constant_cpu_to_le32(1 << 9)
+/* radar detection enable */
+#define RXON_FLG_RADAR_DETECT_MSK __constant_cpu_to_le32(1 << 12)
+#define RXON_FLG_TGJ_NARROW_BAND_MSK __constant_cpu_to_le32(1 << 13)
+/* rx response to host with 8-byte TSF
+* (according to ON_AIR deassertion) */
+#define RXON_FLG_TSF2HOST_MSK __constant_cpu_to_le32(1 << 15)
+
+/* rx_config filter flags */
+/* accept all data frames */
+#define RXON_FILTER_PROMISC_MSK __constant_cpu_to_le32(1 << 0)
+/* pass control & management to host */
+#define RXON_FILTER_CTL2HOST_MSK __constant_cpu_to_le32(1 << 1)
+/* accept multi-cast */
+#define RXON_FILTER_ACCEPT_GRP_MSK __constant_cpu_to_le32(1 << 2)
+/* don't decrypt uni-cast frames */
+#define RXON_FILTER_DIS_DECRYPT_MSK __constant_cpu_to_le32(1 << 3)
+/* don't decrypt multi-cast frames */
+#define RXON_FILTER_DIS_GRP_DECRYPT_MSK __constant_cpu_to_le32(1 << 4)
+/* STA is associated */
+#define RXON_FILTER_ASSOC_MSK __constant_cpu_to_le32(1 << 5)
+/* transfer to host non bssid beacons in associated state */
+#define RXON_FILTER_BCON_AWARE_MSK __constant_cpu_to_le32(1 << 6)
+
+/**
+ * REPLY_RXON = 0x10 (command, has simple generic response)
+ *
+ * RXON tunes the radio tuner to a service channel, and sets up a number
+ * of parameters that are used primarily for Rx, but also for Tx operations.
+ *
+ * NOTE: When tuning to a new channel, driver must set the
+ * RXON_FILTER_ASSOC_MSK to 0. This will clear station-dependent
+ * info within the device, including the station tables, tx retry
+ * rate tables, and txpower tables. Driver must build a new station
+ * table and txpower table before transmitting anything on the RXON
+ * channel.
+ *
+ * NOTE: All RXONs wipe clean the internal txpower table. Driver must
+ * issue a new REPLY_TX_PWR_TABLE_CMD after each REPLY_RXON (0x10),
+ * regardless of whether RXON_FILTER_ASSOC_MSK is set.
+ */
+struct iwl3945_rxon_cmd {
+ u8 node_addr[6];
+ __le16 reserved1;
+ u8 bssid_addr[6];
+ __le16 reserved2;
+ u8 wlap_bssid_addr[6];
+ __le16 reserved3;
+ u8 dev_type;
+ u8 air_propagation;
+ __le16 reserved4;
+ u8 ofdm_basic_rates;
+ u8 cck_basic_rates;
+ __le16 assoc_id;
+ __le32 flags;
+ __le32 filter_flags;
+ __le16 channel;
+ __le16 reserved5;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_RXON_ASSOC = 0x11 (command, has simple generic response)
+ */
+struct iwl3945_rxon_assoc_cmd {
+ __le32 flags;
+ __le32 filter_flags;
+ u8 ofdm_basic_rates;
+ u8 cck_basic_rates;
+ __le16 reserved;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_RXON_TIMING = 0x14 (command, has simple generic response)
+ */
+struct iwl3945_rxon_time_cmd {
+ union tsf timestamp;
+ __le16 beacon_interval;
+ __le16 atim_window;
+ __le32 beacon_init_val;
+ __le16 listen_interval;
+ __le16 reserved;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response)
+ */
+struct iwl3945_channel_switch_cmd {
+ u8 band;
+ u8 expect_beacon;
+ __le16 channel;
+ __le32 rxon_flags;
+ __le32 rxon_filter_flags;
+ __le32 switch_time;
+ struct iwl3945_power_per_rate power[IWL_MAX_RATES];
+} __attribute__ ((packed));
+
+/*
+ * CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command)
+ */
+struct iwl3945_csa_notification {
+ __le16 band;
+ __le16 channel;
+ __le32 status; /* 0 - OK, 1 - fail */
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (2)
+ * Quality-of-Service (QOS) Commands & Responses:
+ *
+ *****************************************************************************/
+
+/**
+ * struct iwl_ac_qos -- QOS timing params for REPLY_QOS_PARAM
+ * One for each of 4 EDCA access categories in struct iwl_qosparam_cmd
+ *
+ * @cw_min: Contention window, start value in numbers of slots.
+ * Should be a power-of-2, minus 1. Device's default is 0x0f.
+ * @cw_max: Contention window, max value in numbers of slots.
+ * Should be a power-of-2, minus 1. Device's default is 0x3f.
+ * @aifsn: Number of slots in Arbitration Interframe Space (before
+ * performing random backoff timing prior to Tx). Device default 1.
+ * @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0.
+ *
+ * Device will automatically increase contention window by (2*CW) + 1 for each
+ * transmission retry. Device uses cw_max as a bit mask, ANDed with new CW
+ * value, to cap the CW value.
+ */
+struct iwl3945_ac_qos {
+ __le16 cw_min;
+ __le16 cw_max;
+ u8 aifsn;
+ u8 reserved1;
+ __le16 edca_txop;
+} __attribute__ ((packed));
+
+/* QoS flags defines */
+#define QOS_PARAM_FLG_UPDATE_EDCA_MSK __constant_cpu_to_le32(0x01)
+#define QOS_PARAM_FLG_TGN_MSK __constant_cpu_to_le32(0x02)
+#define QOS_PARAM_FLG_TXOP_TYPE_MSK __constant_cpu_to_le32(0x10)
+
+/* Number of Access Categories (AC) (EDCA), queues 0..3 */
+#define AC_NUM 4
+
+/*
+ * REPLY_QOS_PARAM = 0x13 (command, has simple generic response)
+ *
+ * This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs
+ * 0: Background, 1: Best Effort, 2: Video, 3: Voice.
+ */
+struct iwl3945_qosparam_cmd {
+ __le32 qos_flags;
+ struct iwl3945_ac_qos ac[AC_NUM];
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (3)
+ * Add/Modify Stations Commands & Responses:
+ *
+ *****************************************************************************/
+/*
+ * Multi station support
+ */
+
+/* Special, dedicated locations within device's station table */
+#define IWL_AP_ID 0
+#define IWL_MULTICAST_ID 1
+#define IWL_STA_ID 2
+#define IWL3945_BROADCAST_ID 24
+#define IWL3945_STATION_COUNT 25
+
+#define IWL_STATION_COUNT 32 /* MAX(3945,4965)*/
+#define IWL_INVALID_STATION 255
+
+#define STA_FLG_TX_RATE_MSK __constant_cpu_to_le32(1<<2);
+#define STA_FLG_PWR_SAVE_MSK __constant_cpu_to_le32(1<<8);
+
+/* Use in mode field. 1: modify existing entry, 0: add new station entry */
+#define STA_CONTROL_MODIFY_MSK 0x01
+
+/* key flags __le16*/
+#define STA_KEY_FLG_ENCRYPT_MSK __constant_cpu_to_le16(0x7)
+#define STA_KEY_FLG_NO_ENC __constant_cpu_to_le16(0x0)
+#define STA_KEY_FLG_WEP __constant_cpu_to_le16(0x1)
+#define STA_KEY_FLG_CCMP __constant_cpu_to_le16(0x2)
+#define STA_KEY_FLG_TKIP __constant_cpu_to_le16(0x3)
+
+#define STA_KEY_FLG_KEYID_POS 8
+#define STA_KEY_FLG_INVALID __constant_cpu_to_le16(0x0800)
+
+/* Flags indicate whether to modify vs. don't change various station params */
+#define STA_MODIFY_KEY_MASK 0x01
+#define STA_MODIFY_TID_DISABLE_TX 0x02
+#define STA_MODIFY_TX_RATE_MSK 0x04
+
+/*
+ * Antenna masks:
+ * bit14:15 01 B inactive, A active
+ * 10 B active, A inactive
+ * 11 Both active
+ */
+#define RATE_MCS_ANT_A_POS 14
+#define RATE_MCS_ANT_B_POS 15
+#define RATE_MCS_ANT_A_MSK 0x4000
+#define RATE_MCS_ANT_B_MSK 0x8000
+#define RATE_MCS_ANT_AB_MSK 0xc000
+
+struct iwl3945_keyinfo {
+ __le16 key_flags;
+ u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
+ u8 reserved1;
+ __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
+ __le16 reserved2;
+ u8 key[16]; /* 16-byte unicast decryption key */
+} __attribute__ ((packed));
+
+/**
+ * struct sta_id_modify
+ * @addr[ETH_ALEN]: station's MAC address
+ * @sta_id: index of station in uCode's station table
+ * @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change
+ *
+ * Driver selects unused table index when adding new station,
+ * or the index to a pre-existing station entry when modifying that station.
+ * Some indexes have special purposes (IWL_AP_ID, index 0, is for AP).
+ *
+ * modify_mask flags select which parameters to modify vs. leave alone.
+ */
+struct sta_id_modify {
+ u8 addr[ETH_ALEN];
+ __le16 reserved1;
+ u8 sta_id;
+ u8 modify_mask;
+ __le16 reserved2;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_ADD_STA = 0x18 (command)
+ *
+ * The device contains an internal table of per-station information,
+ * with info on security keys, aggregation parameters, and Tx rates for
+ * initial Tx attempt and any retries (4965 uses REPLY_TX_LINK_QUALITY_CMD,
+ * 3945 uses REPLY_RATE_SCALE to set up rate tables).
+ *
+ * REPLY_ADD_STA sets up the table entry for one station, either creating
+ * a new entry, or modifying a pre-existing one.
+ *
+ * NOTE: RXON command (without "associated" bit set) wipes the station table
+ * clean. Moving into RF_KILL state does this also. Driver must set up
+ * new station table before transmitting anything on the RXON channel
+ * (except active scans or active measurements; those commands carry
+ * their own txpower/rate setup data).
+ *
+ * When getting started on a new channel, driver must set up the
+ * IWL_BROADCAST_ID entry (last entry in the table). For a client
+ * station in a BSS, once an AP is selected, driver sets up the AP STA
+ * in the IWL_AP_ID entry (1st entry in the table). BROADCAST and AP
+ * are all that are needed for a BSS client station. If the device is
+ * used as AP, or in an IBSS network, driver must set up station table
+ * entries for all STAs in network, starting with index IWL_STA_ID.
+ */
+struct iwl3945_addsta_cmd {
+ u8 mode; /* 1: modify existing, 0: add new station */
+ u8 reserved[3];
+ struct sta_id_modify sta;
+ struct iwl3945_keyinfo key;
+ __le32 station_flags; /* STA_FLG_* */
+ __le32 station_flags_msk; /* STA_FLG_* */
+
+ /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
+ * corresponding to bit (e.g. bit 5 controls TID 5).
+ * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
+ __le16 tid_disable_tx;
+
+ __le16 rate_n_flags;
+
+ /* TID for which to add block-ack support.
+ * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
+ u8 add_immediate_ba_tid;
+
+ /* TID for which to remove block-ack support.
+ * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
+ u8 remove_immediate_ba_tid;
+
+ /* Starting Sequence Number for added block-ack support.
+ * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
+ __le16 add_immediate_ba_ssn;
+} __attribute__ ((packed));
+
+#define ADD_STA_SUCCESS_MSK 0x1
+#define ADD_STA_NO_ROOM_IN_TABLE 0x2
+#define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4
+/*
+ * REPLY_ADD_STA = 0x18 (response)
+ */
+struct iwl3945_add_sta_resp {
+ u8 status; /* ADD_STA_* */
+} __attribute__ ((packed));
+
+
+/******************************************************************************
+ * (4)
+ * Rx Responses:
+ *
+ *****************************************************************************/
+
+struct iwl3945_rx_frame_stats {
+ u8 phy_count;
+ u8 id;
+ u8 rssi;
+ u8 agc;
+ __le16 sig_avg;
+ __le16 noise_diff;
+ u8 payload[0];
+} __attribute__ ((packed));
+
+struct iwl3945_rx_frame_hdr {
+ __le16 channel;
+ __le16 phy_flags;
+ u8 reserved1;
+ u8 rate;
+ __le16 len;
+ u8 payload[0];
+} __attribute__ ((packed));
+
+#define RX_RES_STATUS_NO_CRC32_ERROR __constant_cpu_to_le32(1 << 0)
+#define RX_RES_STATUS_NO_RXE_OVERFLOW __constant_cpu_to_le32(1 << 1)
+
+#define RX_RES_PHY_FLAGS_BAND_24_MSK __constant_cpu_to_le16(1 << 0)
+#define RX_RES_PHY_FLAGS_MOD_CCK_MSK __constant_cpu_to_le16(1 << 1)
+#define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK __constant_cpu_to_le16(1 << 2)
+#define RX_RES_PHY_FLAGS_NARROW_BAND_MSK __constant_cpu_to_le16(1 << 3)
+#define RX_RES_PHY_FLAGS_ANTENNA_MSK __constant_cpu_to_le16(0xf0)
+
+#define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8)
+#define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8)
+#define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8)
+#define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8)
+#define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8)
+
+#define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11)
+#define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11)
+#define RX_RES_STATUS_DECRYPT_OK (0x3 << 11)
+#define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11)
+#define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11)
+
+struct iwl3945_rx_frame_end {
+ __le32 status;
+ __le64 timestamp;
+ __le32 beacon_timestamp;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_3945_RX = 0x1b (response only, not a command)
+ *
+ * NOTE: DO NOT dereference from casts to this structure
+ * It is provided only for calculating minimum data set size.
+ * The actual offsets of the hdr and end are dynamic based on
+ * stats.phy_count
+ */
+struct iwl3945_rx_frame {
+ struct iwl3945_rx_frame_stats stats;
+ struct iwl3945_rx_frame_hdr hdr;
+ struct iwl3945_rx_frame_end end;
+} __attribute__ ((packed));
+
+/* Fixed (non-configurable) rx data from phy */
+#define RX_PHY_FLAGS_ANTENNAE_OFFSET (4)
+#define RX_PHY_FLAGS_ANTENNAE_MASK (0x70)
+#define IWL_AGC_DB_MASK (0x3f80) /* MASK(7,13) */
+#define IWL_AGC_DB_POS (7)
+struct iwl4965_rx_non_cfg_phy {
+ __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */
+ __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */
+ u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */
+ u8 pad[0];
+} __attribute__ ((packed));
+
+/*
+ * REPLY_4965_RX = 0xc3 (response only, not a command)
+ * Used only for legacy (non 11n) frames.
+ */
+#define RX_RES_PHY_CNT 14
+struct iwl4965_rx_phy_res {
+ u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */
+ u8 cfg_phy_cnt; /* configurable DSP phy data byte count */
+ u8 stat_id; /* configurable DSP phy data set ID */
+ u8 reserved1;
+ __le64 timestamp; /* TSF at on air rise */
+ __le32 beacon_time_stamp; /* beacon at on-air rise */
+ __le16 phy_flags; /* general phy flags: band, modulation, ... */
+ __le16 channel; /* channel number */
+ __le16 non_cfg_phy[RX_RES_PHY_CNT]; /* upto 14 phy entries */
+ __le32 reserved2;
+ __le32 rate_n_flags;
+ __le16 byte_count; /* frame's byte-count */
+ __le16 reserved3;
+} __attribute__ ((packed));
+
+struct iwl4965_rx_mpdu_res_start {
+ __le16 byte_count;
+ __le16 reserved;
+} __attribute__ ((packed));
+
+
+/******************************************************************************
+ * (5)
+ * Tx Commands & Responses:
+ *
+ * Driver must place each REPLY_TX command into one of the prioritized Tx
+ * queues in host DRAM, shared between driver and device. When the device's
+ * Tx scheduler and uCode are preparing to transmit, the device pulls the
+ * Tx command over the PCI bus via one of the device's Tx DMA channels,
+ * to fill an internal FIFO from which data will be transmitted.
+ *
+ * uCode handles all timing and protocol related to control frames
+ * (RTS/CTS/ACK), based on flags in the Tx command.
+ *
+ * uCode handles retrying Tx when an ACK is expected but not received.
+ * This includes trying lower data rates than the one requested in the Tx
+ * command, as set up by the REPLY_RATE_SCALE (for 3945) or
+ * REPLY_TX_LINK_QUALITY_CMD (4965).
+ *
+ * Driver sets up transmit power for various rates via REPLY_TX_PWR_TABLE_CMD.
+ * This command must be executed after every RXON command, before Tx can occur.
+ *****************************************************************************/
+
+/* REPLY_TX Tx flags field */
+
+/* 1: Use Request-To-Send protocol before this frame.
+ * Mutually exclusive vs. TX_CMD_FLG_CTS_MSK. */
+#define TX_CMD_FLG_RTS_MSK __constant_cpu_to_le32(1 << 1)
+
+/* 1: Transmit Clear-To-Send to self before this frame.
+ * Driver should set this for AUTH/DEAUTH/ASSOC-REQ/REASSOC mgmnt frames.
+ * Mutually exclusive vs. TX_CMD_FLG_RTS_MSK. */
+#define TX_CMD_FLG_CTS_MSK __constant_cpu_to_le32(1 << 2)
+
+/* 1: Expect ACK from receiving station
+ * 0: Don't expect ACK (MAC header's duration field s/b 0)
+ * Set this for unicast frames, but not broadcast/multicast. */
+#define TX_CMD_FLG_ACK_MSK __constant_cpu_to_le32(1 << 3)
+
+/* 1: Use rate scale table (see REPLY_TX_LINK_QUALITY_CMD).
+ * Tx command's initial_rate_index indicates first rate to try;
+ * uCode walks through table for additional Tx attempts.
+ * 0: Use Tx rate/MCS from Tx command's rate_n_flags field.
+ * This rate will be used for all Tx attempts; it will not be scaled. */
+#define TX_CMD_FLG_STA_RATE_MSK __constant_cpu_to_le32(1 << 4)
+
+/* 1: Expect immediate block-ack.
+ * Set when Txing a block-ack request frame. Also set TX_CMD_FLG_ACK_MSK. */
+#define TX_CMD_FLG_IMM_BA_RSP_MASK __constant_cpu_to_le32(1 << 6)
+
+/* 1: Frame requires full Tx-Op protection.
+ * Set this if either RTS or CTS Tx Flag gets set. */
+#define TX_CMD_FLG_FULL_TXOP_PROT_MSK __constant_cpu_to_le32(1 << 7)
+
+/* Tx antenna selection field; used only for 3945, reserved (0) for 4965.
+ * Set field to "0" to allow 3945 uCode to select antenna (normal usage). */
+#define TX_CMD_FLG_ANT_SEL_MSK __constant_cpu_to_le32(0xf00)
+#define TX_CMD_FLG_ANT_A_MSK __constant_cpu_to_le32(1 << 8)
+#define TX_CMD_FLG_ANT_B_MSK __constant_cpu_to_le32(1 << 9)
+
+/* 1: Ignore Bluetooth priority for this frame.
+ * 0: Delay Tx until Bluetooth device is done (normal usage). */
+#define TX_CMD_FLG_BT_DIS_MSK __constant_cpu_to_le32(1 << 12)
+
+/* 1: uCode overrides sequence control field in MAC header.
+ * 0: Driver provides sequence control field in MAC header.
+ * Set this for management frames, non-QOS data frames, non-unicast frames,
+ * and also in Tx command embedded in REPLY_SCAN_CMD for active scans. */
+#define TX_CMD_FLG_SEQ_CTL_MSK __constant_cpu_to_le32(1 << 13)
+
+/* 1: This frame is non-last MPDU; more fragments are coming.
+ * 0: Last fragment, or not using fragmentation. */
+#define TX_CMD_FLG_MORE_FRAG_MSK __constant_cpu_to_le32(1 << 14)
+
+/* 1: uCode calculates and inserts Timestamp Function (TSF) in outgoing frame.
+ * 0: No TSF required in outgoing frame.
+ * Set this for transmitting beacons and probe responses. */
+#define TX_CMD_FLG_TSF_MSK __constant_cpu_to_le32(1 << 16)
+
+/* 1: Driver inserted 2 bytes pad after the MAC header, for (required) dword
+ * alignment of frame's payload data field.
+ * 0: No pad
+ * Set this for MAC headers with 26 or 30 bytes, i.e. those with QOS or ADDR4
+ * field (but not both). Driver must align frame data (i.e. data following
+ * MAC header) to DWORD boundary. */
+#define TX_CMD_FLG_MH_PAD_MSK __constant_cpu_to_le32(1 << 20)
+
+/* HCCA-AP - disable duration overwriting. */
+#define TX_CMD_FLG_DUR_MSK __constant_cpu_to_le32(1 << 25)
+
+/*
+ * TX command security control
+ */
+#define TX_CMD_SEC_WEP 0x01
+#define TX_CMD_SEC_CCM 0x02
+#define TX_CMD_SEC_TKIP 0x03
+#define TX_CMD_SEC_MSK 0x03
+#define TX_CMD_SEC_SHIFT 6
+#define TX_CMD_SEC_KEY128 0x08
+
+/*
+ * REPLY_TX = 0x1c (command)
+ */
+struct iwl3945_tx_cmd {
+ /*
+ * MPDU byte count:
+ * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size,
+ * + 8 byte IV for CCM or TKIP (not used for WEP)
+ * + Data payload
+ * + 8-byte MIC (not used for CCM/WEP)
+ * NOTE: Does not include Tx command bytes, post-MAC pad bytes,
+ * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i
+ * Range: 14-2342 bytes.
+ */
+ __le16 len;
+
+ /*
+ * MPDU or MSDU byte count for next frame.
+ * Used for fragmentation and bursting, but not 11n aggregation.
+ * Same as "len", but for next frame. Set to 0 if not applicable.
+ */
+ __le16 next_frame_len;
+
+ __le32 tx_flags; /* TX_CMD_FLG_* */
+
+ u8 rate;
+
+ /* Index of recipient station in uCode's station table */
+ u8 sta_id;
+ u8 tid_tspec;
+ u8 sec_ctl;
+ u8 key[16];
+ union {
+ u8 byte[8];
+ __le16 word[4];
+ __le32 dw[2];
+ } tkip_mic;
+ __le32 next_frame_info;
+ union {
+ __le32 life_time;
+ __le32 attempt;
+ } stop_time;
+ u8 supp_rates[2];
+ u8 rts_retry_limit; /*byte 50 */
+ u8 data_retry_limit; /*byte 51 */
+ union {
+ __le16 pm_frame_timeout;
+ __le16 attempt_duration;
+ } timeout;
+
+ /*
+ * Duration of EDCA burst Tx Opportunity, in 32-usec units.
+ * Set this if txop time is not specified by HCCA protocol (e.g. by AP).
+ */
+ __le16 driver_txop;
+
+ /*
+ * MAC header goes here, followed by 2 bytes padding if MAC header
+ * length is 26 or 30 bytes, followed by payload data
+ */
+ u8 payload[0];
+ struct ieee80211_hdr hdr[0];
+} __attribute__ ((packed));
+
+/* TX command response is sent after *all* transmission attempts.
+ *
+ * NOTES:
+ *
+ * TX_STATUS_FAIL_NEXT_FRAG
+ *
+ * If the fragment flag in the MAC header for the frame being transmitted
+ * is set and there is insufficient time to transmit the next frame, the
+ * TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'.
+ *
+ * TX_STATUS_FIFO_UNDERRUN
+ *
+ * Indicates the host did not provide bytes to the FIFO fast enough while
+ * a TX was in progress.
+ *
+ * TX_STATUS_FAIL_MGMNT_ABORT
+ *
+ * This status is only possible if the ABORT ON MGMT RX parameter was
+ * set to true with the TX command.
+ *
+ * If the MSB of the status parameter is set then an abort sequence is
+ * required. This sequence consists of the host activating the TX Abort
+ * control line, and then waiting for the TX Abort command response. This
+ * indicates that a the device is no longer in a transmit state, and that the
+ * command FIFO has been cleared. The host must then deactivate the TX Abort
+ * control line. Receiving is still allowed in this case.
+ */
+enum {
+ TX_STATUS_SUCCESS = 0x01,
+ TX_STATUS_DIRECT_DONE = 0x02,
+ TX_STATUS_FAIL_SHORT_LIMIT = 0x82,
+ TX_STATUS_FAIL_LONG_LIMIT = 0x83,
+ TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84,
+ TX_STATUS_FAIL_MGMNT_ABORT = 0x85,
+ TX_STATUS_FAIL_NEXT_FRAG = 0x86,
+ TX_STATUS_FAIL_LIFE_EXPIRE = 0x87,
+ TX_STATUS_FAIL_DEST_PS = 0x88,
+ TX_STATUS_FAIL_ABORTED = 0x89,
+ TX_STATUS_FAIL_BT_RETRY = 0x8a,
+ TX_STATUS_FAIL_STA_INVALID = 0x8b,
+ TX_STATUS_FAIL_FRAG_DROPPED = 0x8c,
+ TX_STATUS_FAIL_TID_DISABLE = 0x8d,
+ TX_STATUS_FAIL_FRAME_FLUSHED = 0x8e,
+ TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f,
+ TX_STATUS_FAIL_TX_LOCKED = 0x90,
+ TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91,
+};
+
+#define TX_PACKET_MODE_REGULAR 0x0000
+#define TX_PACKET_MODE_BURST_SEQ 0x0100
+#define TX_PACKET_MODE_BURST_FIRST 0x0200
+
+enum {
+ TX_POWER_PA_NOT_ACTIVE = 0x0,
+};
+
+enum {
+ TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */
+ TX_STATUS_DELAY_MSK = 0x00000040,
+ TX_STATUS_ABORT_MSK = 0x00000080,
+ TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */
+ TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */
+ TX_RESERVED = 0x00780000, /* bits 19:22 */
+ TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */
+ TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */
+};
+
+/*
+ * REPLY_TX = 0x1c (response)
+ */
+struct iwl3945_tx_resp {
+ u8 failure_rts;
+ u8 failure_frame;
+ u8 bt_kill_count;
+ u8 rate;
+ __le32 wireless_media_time;
+ __le32 status; /* TX status */
+} __attribute__ ((packed));
+
+/*
+ * REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response)
+ */
+struct iwl3945_txpowertable_cmd {
+ u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
+ u8 reserved;
+ __le16 channel;
+ struct iwl3945_power_per_rate power[IWL_MAX_RATES];
+} __attribute__ ((packed));
+
+struct iwl3945_rate_scaling_info {
+ __le16 rate_n_flags;
+ u8 try_cnt;
+ u8 next_rate_index;
+} __attribute__ ((packed));
+
+/**
+ * struct iwl3945_rate_scaling_cmd - Rate Scaling Command & Response
+ *
+ * REPLY_RATE_SCALE = 0x47 (command, has simple generic response)
+ *
+ * NOTE: The table of rates passed to the uCode via the
+ * RATE_SCALE command sets up the corresponding order of
+ * rates used for all related commands, including rate
+ * masks, etc.
+ *
+ * For example, if you set 9MB (PLCP 0x0f) as the first
+ * rate in the rate table, the bit mask for that rate
+ * when passed through ofdm_basic_rates on the REPLY_RXON
+ * command would be bit 0 (1<<0)
+ */
+struct iwl3945_rate_scaling_cmd {
+ u8 table_id;
+ u8 reserved[3];
+ struct iwl3945_rate_scaling_info table[IWL_MAX_RATES];
+} __attribute__ ((packed));
+
+/*
+ * REPLY_BT_CONFIG = 0x9b (command, has simple generic response)
+ */
+struct iwl3945_bt_cmd {
+ u8 flags;
+ u8 lead_time;
+ u8 max_kill;
+ u8 reserved;
+ __le32 kill_ack_mask;
+ __le32 kill_cts_mask;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (6)
+ * Spectrum Management (802.11h) Commands, Responses, Notifications:
+ *
+ *****************************************************************************/
+
+/*
+ * Spectrum Management
+ */
+#define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \
+ RXON_FILTER_CTL2HOST_MSK | \
+ RXON_FILTER_ACCEPT_GRP_MSK | \
+ RXON_FILTER_DIS_DECRYPT_MSK | \
+ RXON_FILTER_DIS_GRP_DECRYPT_MSK | \
+ RXON_FILTER_ASSOC_MSK | \
+ RXON_FILTER_BCON_AWARE_MSK)
+
+struct iwl3945_measure_channel {
+ __le32 duration; /* measurement duration in extended beacon
+ * format */
+ u8 channel; /* channel to measure */
+ u8 type; /* see enum iwl3945_measure_type */
+ __le16 reserved;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command)
+ */
+struct iwl3945_spectrum_cmd {
+ __le16 len; /* number of bytes starting from token */
+ u8 token; /* token id */
+ u8 id; /* measurement id -- 0 or 1 */
+ u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */
+ u8 periodic; /* 1 = periodic */
+ __le16 path_loss_timeout;
+ __le32 start_time; /* start time in extended beacon format */
+ __le32 reserved2;
+ __le32 flags; /* rxon flags */
+ __le32 filter_flags; /* rxon filter flags */
+ __le16 channel_count; /* minimum 1, maximum 10 */
+ __le16 reserved3;
+ struct iwl3945_measure_channel channels[10];
+} __attribute__ ((packed));
+
+/*
+ * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response)
+ */
+struct iwl3945_spectrum_resp {
+ u8 token;
+ u8 id; /* id of the prior command replaced, or 0xff */
+ __le16 status; /* 0 - command will be handled
+ * 1 - cannot handle (conflicts with another
+ * measurement) */
+} __attribute__ ((packed));
+
+enum iwl3945_measurement_state {
+ IWL_MEASUREMENT_START = 0,
+ IWL_MEASUREMENT_STOP = 1,
+};
+
+enum iwl3945_measurement_status {
+ IWL_MEASUREMENT_OK = 0,
+ IWL_MEASUREMENT_CONCURRENT = 1,
+ IWL_MEASUREMENT_CSA_CONFLICT = 2,
+ IWL_MEASUREMENT_TGH_CONFLICT = 3,
+ /* 4-5 reserved */
+ IWL_MEASUREMENT_STOPPED = 6,
+ IWL_MEASUREMENT_TIMEOUT = 7,
+ IWL_MEASUREMENT_PERIODIC_FAILED = 8,
+};
+
+#define NUM_ELEMENTS_IN_HISTOGRAM 8
+
+struct iwl3945_measurement_histogram {
+ __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */
+ __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */
+} __attribute__ ((packed));
+
+/* clear channel availability counters */
+struct iwl3945_measurement_cca_counters {
+ __le32 ofdm;
+ __le32 cck;
+} __attribute__ ((packed));
+
+enum iwl3945_measure_type {
+ IWL_MEASURE_BASIC = (1 << 0),
+ IWL_MEASURE_CHANNEL_LOAD = (1 << 1),
+ IWL_MEASURE_HISTOGRAM_RPI = (1 << 2),
+ IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
+ IWL_MEASURE_FRAME = (1 << 4),
+ /* bits 5:6 are reserved */
+ IWL_MEASURE_IDLE = (1 << 7),
+};
+
+/*
+ * SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command)
+ */
+struct iwl3945_spectrum_notification {
+ u8 id; /* measurement id -- 0 or 1 */
+ u8 token;
+ u8 channel_index; /* index in measurement channel list */
+ u8 state; /* 0 - start, 1 - stop */
+ __le32 start_time; /* lower 32-bits of TSF */
+ u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */
+ u8 channel;
+ u8 type; /* see enum iwl3945_measurement_type */
+ u8 reserved1;
+ /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only
+ * valid if applicable for measurement type requested. */
+ __le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */
+ __le32 cca_cck; /* cca fraction time in 44Mhz clock periods */
+ __le32 cca_time; /* channel load time in usecs */
+ u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 -
+ * unidentified */
+ u8 reserved2[3];
+ struct iwl3945_measurement_histogram histogram;
+ __le32 stop_time; /* lower 32-bits of TSF */
+ __le32 status; /* see iwl3945_measurement_status */
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (7)
+ * Power Management Commands, Responses, Notifications:
+ *
+ *****************************************************************************/
+
+/**
+ * struct iwl3945_powertable_cmd - Power Table Command
+ * @flags: See below:
+ *
+ * POWER_TABLE_CMD = 0x77 (command, has simple generic response)
+ *
+ * PM allow:
+ * bit 0 - '0' Driver not allow power management
+ * '1' Driver allow PM (use rest of parameters)
+ * uCode send sleep notifications:
+ * bit 1 - '0' Don't send sleep notification
+ * '1' send sleep notification (SEND_PM_NOTIFICATION)
+ * Sleep over DTIM
+ * bit 2 - '0' PM have to walk up every DTIM
+ * '1' PM could sleep over DTIM till listen Interval.
+ * PCI power managed
+ * bit 3 - '0' (PCI_LINK_CTRL & 0x1)
+ * '1' !(PCI_LINK_CTRL & 0x1)
+ * Force sleep Modes
+ * bit 31/30- '00' use both mac/xtal sleeps
+ * '01' force Mac sleep
+ * '10' force xtal sleep
+ * '11' Illegal set
+ *
+ * NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then
+ * ucode assume sleep over DTIM is allowed and we don't need to wakeup
+ * for every DTIM.
+ */
+#define IWL_POWER_VEC_SIZE 5
+
+#define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK __constant_cpu_to_le32(1<<0)
+#define IWL_POWER_SLEEP_OVER_DTIM_MSK __constant_cpu_to_le32(1<<2)
+#define IWL_POWER_PCI_PM_MSK __constant_cpu_to_le32(1<<3)
+struct iwl3945_powertable_cmd {
+ __le32 flags;
+ __le32 rx_data_timeout;
+ __le32 tx_data_timeout;
+ __le32 sleep_interval[IWL_POWER_VEC_SIZE];
+} __attribute__((packed));
+
+/*
+ * PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command)
+ * 3945 and 4965 identical.
+ */
+struct iwl3945_sleep_notification {
+ u8 pm_sleep_mode;
+ u8 pm_wakeup_src;
+ __le16 reserved;
+ __le32 sleep_time;
+ __le32 tsf_low;
+ __le32 bcon_timer;
+} __attribute__ ((packed));
+
+/* Sleep states. 3945 and 4965 identical. */
+enum {
+ IWL_PM_NO_SLEEP = 0,
+ IWL_PM_SLP_MAC = 1,
+ IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
+ IWL_PM_SLP_FULL_MAC_CARD_STATE = 3,
+ IWL_PM_SLP_PHY = 4,
+ IWL_PM_SLP_REPENT = 5,
+ IWL_PM_WAKEUP_BY_TIMER = 6,
+ IWL_PM_WAKEUP_BY_DRIVER = 7,
+ IWL_PM_WAKEUP_BY_RFKILL = 8,
+ /* 3 reserved */
+ IWL_PM_NUM_OF_MODES = 12,
+};
+
+/*
+ * REPLY_CARD_STATE_CMD = 0xa0 (command, has simple generic response)
+ */
+#define CARD_STATE_CMD_DISABLE 0x00 /* Put card to sleep */
+#define CARD_STATE_CMD_ENABLE 0x01 /* Wake up card */
+#define CARD_STATE_CMD_HALT 0x02 /* Power down permanently */
+struct iwl3945_card_state_cmd {
+ __le32 status; /* CARD_STATE_CMD_* request new power state */
+} __attribute__ ((packed));
+
+/*
+ * CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command)
+ */
+struct iwl3945_card_state_notif {
+ __le32 flags;
+} __attribute__ ((packed));
+
+#define HW_CARD_DISABLED 0x01
+#define SW_CARD_DISABLED 0x02
+#define RF_CARD_DISABLED 0x04
+#define RXON_CARD_DISABLED 0x10
+
+struct iwl3945_ct_kill_config {
+ __le32 reserved;
+ __le32 critical_temperature_M;
+ __le32 critical_temperature_R;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (8)
+ * Scan Commands, Responses, Notifications:
+ *
+ *****************************************************************************/
+
+struct iwl3945_scan_channel {
+ /* type is defined as:
+ * 0:0 active (0 - passive)
+ * 1:4 SSID direct
+ * If 1 is set then corresponding SSID IE is transmitted in probe
+ * 5:7 reserved
+ */
+ u8 type;
+ u8 channel;
+ struct iwl3945_tx_power tpc;
+ __le16 active_dwell;
+ __le16 passive_dwell;
+} __attribute__ ((packed));
+
+struct iwl3945_ssid_ie {
+ u8 id;
+ u8 len;
+ u8 ssid[32];
+} __attribute__ ((packed));
+
+#define PROBE_OPTION_MAX 0x4
+#define TX_CMD_LIFE_TIME_INFINITE __constant_cpu_to_le32(0xFFFFFFFF)
+#define IWL_GOOD_CRC_TH __constant_cpu_to_le16(1)
+#define IWL_MAX_SCAN_SIZE 1024
+
+/*
+ * REPLY_SCAN_CMD = 0x80 (command)
+ */
+struct iwl3945_scan_cmd {
+ __le16 len;
+ u8 reserved0;
+ u8 channel_count;
+ __le16 quiet_time; /* dwell only this long on quiet chnl
+ * (active scan) */
+ __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */
+ __le16 good_CRC_th; /* passive -> active promotion threshold */
+ __le16 reserved1;
+ __le32 max_out_time; /* max usec to be out of associated (service)
+ * chnl */
+ __le32 suspend_time; /* pause scan this long when returning to svc
+ * chnl.
+ * 3945 -- 31:24 # beacons, 19:0 additional usec,
+ * 4965 -- 31:22 # beacons, 21:0 additional usec.
+ */
+ __le32 flags;
+ __le32 filter_flags;
+
+ struct iwl3945_tx_cmd tx_cmd;
+ struct iwl3945_ssid_ie direct_scan[PROBE_OPTION_MAX];
+
+ u8 data[0];
+ /*
+ * The channels start after the probe request payload and are of type:
+ *
+ * struct iwl3945_scan_channel channels[0];
+ *
+ * NOTE: Only one band of channels can be scanned per pass. You
+ * can not mix 2.4GHz channels and 5.2GHz channels and must
+ * request a scan multiple times (not concurrently)
+ *
+ */
+} __attribute__ ((packed));
+
+/* Can abort will notify by complete notification with abort status. */
+#define CAN_ABORT_STATUS __constant_cpu_to_le32(0x1)
+/* complete notification statuses */
+#define ABORT_STATUS 0x2
+
+/*
+ * REPLY_SCAN_CMD = 0x80 (response)
+ */
+struct iwl3945_scanreq_notification {
+ __le32 status; /* 1: okay, 2: cannot fulfill request */
+} __attribute__ ((packed));
+
+/*
+ * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command)
+ */
+struct iwl3945_scanstart_notification {
+ __le32 tsf_low;
+ __le32 tsf_high;
+ __le32 beacon_timer;
+ u8 channel;
+ u8 band;
+ u8 reserved[2];
+ __le32 status;
+} __attribute__ ((packed));
+
+#define SCAN_OWNER_STATUS 0x1;
+#define MEASURE_OWNER_STATUS 0x2;
+
+#define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */
+/*
+ * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command)
+ */
+struct iwl3945_scanresults_notification {
+ u8 channel;
+ u8 band;
+ u8 reserved[2];
+ __le32 tsf_low;
+ __le32 tsf_high;
+ __le32 statistics[NUMBER_OF_STATISTICS];
+} __attribute__ ((packed));
+
+/*
+ * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command)
+ */
+struct iwl3945_scancomplete_notification {
+ u8 scanned_channels;
+ u8 status;
+ u8 reserved;
+ u8 last_channel;
+ __le32 tsf_low;
+ __le32 tsf_high;
+} __attribute__ ((packed));
+
+
+/******************************************************************************
+ * (9)
+ * IBSS/AP Commands and Notifications:
+ *
+ *****************************************************************************/
+
+/*
+ * BEACON_NOTIFICATION = 0x90 (notification only, not a command)
+ */
+struct iwl3945_beacon_notif {
+ struct iwl3945_tx_resp beacon_notify_hdr;
+ __le32 low_tsf;
+ __le32 high_tsf;
+ __le32 ibss_mgr_status;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_TX_BEACON = 0x91 (command, has simple generic response)
+ */
+struct iwl3945_tx_beacon_cmd {
+ struct iwl3945_tx_cmd tx;
+ __le16 tim_idx;
+ u8 tim_size;
+ u8 reserved1;
+ struct ieee80211_hdr frame[0]; /* beacon frame */
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (10)
+ * Statistics Commands and Notifications:
+ *
+ *****************************************************************************/
+
+#define IWL_TEMP_CONVERT 260
+
+#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
+#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
+#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
+
+/* Used for passing to driver number of successes and failures per rate */
+struct rate_histogram {
+ union {
+ __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
+ __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
+ __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
+ } success;
+ union {
+ __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
+ __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
+ __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
+ } failed;
+} __attribute__ ((packed));
+
+/* statistics command response */
+
+struct statistics_rx_phy {
+ __le32 ina_cnt;
+ __le32 fina_cnt;
+ __le32 plcp_err;
+ __le32 crc32_err;
+ __le32 overrun_err;
+ __le32 early_overrun_err;
+ __le32 crc32_good;
+ __le32 false_alarm_cnt;
+ __le32 fina_sync_err_cnt;
+ __le32 sfd_timeout;
+ __le32 fina_timeout;
+ __le32 unresponded_rts;
+ __le32 rxe_frame_limit_overrun;
+ __le32 sent_ack_cnt;
+ __le32 sent_cts_cnt;
+} __attribute__ ((packed));
+
+struct statistics_rx_non_phy {
+ __le32 bogus_cts; /* CTS received when not expecting CTS */
+ __le32 bogus_ack; /* ACK received when not expecting ACK */
+ __le32 non_bssid_frames; /* number of frames with BSSID that
+ * doesn't belong to the STA BSSID */
+ __le32 filtered_frames; /* count frames that were dumped in the
+ * filtering process */
+ __le32 non_channel_beacons; /* beacons with our bss id but not on
+ * our serving channel */
+} __attribute__ ((packed));
+
+struct statistics_rx {
+ struct statistics_rx_phy ofdm;
+ struct statistics_rx_phy cck;
+ struct statistics_rx_non_phy general;
+} __attribute__ ((packed));
+
+struct statistics_tx {
+ __le32 preamble_cnt;
+ __le32 rx_detected_cnt;
+ __le32 bt_prio_defer_cnt;
+ __le32 bt_prio_kill_cnt;
+ __le32 few_bytes_cnt;
+ __le32 cts_timeout;
+ __le32 ack_timeout;
+ __le32 expected_ack_cnt;
+ __le32 actual_ack_cnt;
+} __attribute__ ((packed));
+
+struct statistics_dbg {
+ __le32 burst_check;
+ __le32 burst_count;
+ __le32 reserved[4];
+} __attribute__ ((packed));
+
+struct statistics_div {
+ __le32 tx_on_a;
+ __le32 tx_on_b;
+ __le32 exec_time;
+ __le32 probe_time;
+} __attribute__ ((packed));
+
+struct statistics_general {
+ __le32 temperature;
+ struct statistics_dbg dbg;
+ __le32 sleep_time;
+ __le32 slots_out;
+ __le32 slots_idle;
+ __le32 ttl_timestamp;
+ struct statistics_div div;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_STATISTICS_CMD = 0x9c,
+ * 3945 and 4965 identical.
+ *
+ * This command triggers an immediate response containing uCode statistics.
+ * The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below.
+ *
+ * If the CLEAR_STATS configuration flag is set, uCode will clear its
+ * internal copy of the statistics (counters) after issuing the response.
+ * This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below).
+ *
+ * If the DISABLE_NOTIF configuration flag is set, uCode will not issue
+ * STATISTICS_NOTIFICATIONs after received beacons (see below). This flag
+ * does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself.
+ */
+#define IWL_STATS_CONF_CLEAR_STATS __constant_cpu_to_le32(0x1) /* see above */
+#define IWL_STATS_CONF_DISABLE_NOTIF __constant_cpu_to_le32(0x2)/* see above */
+struct iwl3945_statistics_cmd {
+ __le32 configuration_flags; /* IWL_STATS_CONF_* */
+} __attribute__ ((packed));
+
+/*
+ * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command)
+ *
+ * By default, uCode issues this notification after receiving a beacon
+ * while associated. To disable this behavior, set DISABLE_NOTIF flag in the
+ * REPLY_STATISTICS_CMD 0x9c, above.
+ *
+ * Statistics counters continue to increment beacon after beacon, but are
+ * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD
+ * 0x9c with CLEAR_STATS bit set (see above).
+ *
+ * uCode also issues this notification during scans. uCode clears statistics
+ * appropriately so that each notification contains statistics for only the
+ * one channel that has just been scanned.
+ */
+#define STATISTICS_REPLY_FLG_BAND_24G_MSK __constant_cpu_to_le32(0x2)
+#define STATISTICS_REPLY_FLG_FAT_MODE_MSK __constant_cpu_to_le32(0x8)
+struct iwl3945_notif_statistics {
+ __le32 flag;
+ struct statistics_rx rx;
+ struct statistics_tx tx;
+ struct statistics_general general;
+} __attribute__ ((packed));
+
+
+/*
+ * MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command)
+ */
+/* if ucode missed CONSECUTIVE_MISSED_BCONS_TH beacons in a row,
+ * then this notification will be sent. */
+#define CONSECUTIVE_MISSED_BCONS_TH 20
+
+struct iwl3945_missed_beacon_notif {
+ __le32 consequtive_missed_beacons;
+ __le32 total_missed_becons;
+ __le32 num_expected_beacons;
+ __le32 num_recvd_beacons;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (11)
+ * Rx Calibration Commands:
+ *
+ *****************************************************************************/
+
+#define PHY_CALIBRATE_DIFF_GAIN_CMD (7)
+#define HD_TABLE_SIZE (11)
+
+struct iwl3945_sensitivity_cmd {
+ __le16 control;
+ __le16 table[HD_TABLE_SIZE];
+} __attribute__ ((packed));
+
+struct iwl3945_calibration_cmd {
+ u8 opCode;
+ u8 flags;
+ __le16 reserved;
+ s8 diff_gain_a;
+ s8 diff_gain_b;
+ s8 diff_gain_c;
+ u8 reserved1;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (12)
+ * Miscellaneous Commands:
+ *
+ *****************************************************************************/
+
+/*
+ * LEDs Command & Response
+ * REPLY_LEDS_CMD = 0x48 (command, has simple generic response)
+ *
+ * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field),
+ * this command turns it on or off, or sets up a periodic blinking cycle.
+ */
+struct iwl3945_led_cmd {
+ __le32 interval; /* "interval" in uSec */
+ u8 id; /* 1: Activity, 2: Link, 3: Tech */
+ u8 off; /* # intervals off while blinking;
+ * "0", with >0 "on" value, turns LED on */
+ u8 on; /* # intervals on while blinking;
+ * "0", regardless of "off", turns LED off */
+ u8 reserved;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (13)
+ * Union of all expected notifications/responses:
+ *
+ *****************************************************************************/
+
+struct iwl3945_rx_packet {
+ __le32 len;
+ struct iwl3945_cmd_header hdr;
+ union {
+ struct iwl3945_alive_resp alive_frame;
+ struct iwl3945_rx_frame rx_frame;
+ struct iwl3945_tx_resp tx_resp;
+ struct iwl3945_spectrum_notification spectrum_notif;
+ struct iwl3945_csa_notification csa_notif;
+ struct iwl3945_error_resp err_resp;
+ struct iwl3945_card_state_notif card_state_notif;
+ struct iwl3945_beacon_notif beacon_status;
+ struct iwl3945_add_sta_resp add_sta;
+ struct iwl3945_sleep_notification sleep_notif;
+ struct iwl3945_spectrum_resp spectrum;
+ struct iwl3945_notif_statistics stats;
+ __le32 status;
+ u8 raw[0];
+ } u;
+} __attribute__ ((packed));
+
+#define IWL_RX_FRAME_SIZE (4 + sizeof(struct iwl3945_rx_frame))
+
+#endif /* __iwl3945_3945_commands_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-debug.h b/drivers/net/wireless/iwlwifi/iwl-3945-debug.h
new file mode 100644
index 0000000..ebf0168
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-debug.h
@@ -0,0 +1,152 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
+ *
+ * Portions of this file are derived from the ipw3945 project.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#ifndef __iwl3945_debug_h__
+#define __iwl3945_debug_h__
+
+#ifdef CONFIG_IWL3945_DEBUG
+extern u32 iwl3945_debug_level;
+#define IWL_DEBUG(level, fmt, args...) \
+do { if (iwl3945_debug_level & (level)) \
+ printk(KERN_ERR DRV_NAME": %c %s " fmt, \
+ in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
+
+#define IWL_DEBUG_LIMIT(level, fmt, args...) \
+do { if ((iwl3945_debug_level & (level)) && net_ratelimit()) \
+ printk(KERN_ERR DRV_NAME": %c %s " fmt, \
+ in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
+#else
+static inline void IWL_DEBUG(int level, const char *fmt, ...)
+{
+}
+static inline void IWL_DEBUG_LIMIT(int level, const char *fmt, ...)
+{
+}
+#endif /* CONFIG_IWL3945_DEBUG */
+
+/*
+ * To use the debug system;
+ *
+ * If you are defining a new debug classification, simply add it to the #define
+ * list here in the form of:
+ *
+ * #define IWL_DL_xxxx VALUE
+ *
+ * shifting value to the left one bit from the previous entry. xxxx should be
+ * the name of the classification (for example, WEP)
+ *
+ * You then need to either add a IWL_xxxx_DEBUG() macro definition for your
+ * classification, or use IWL_DEBUG(IWL_DL_xxxx, ...) whenever you want
+ * to send output to that classification.
+ *
+ * To add your debug level to the list of levels seen when you perform
+ *
+ * % cat /proc/net/iwl/debug_level
+ *
+ * you simply need to add your entry to the iwl3945_debug_levels array.
+ *
+ * If you do not see debug_level in /proc/net/iwl then you do not have
+ * CONFIG_IWL3945_DEBUG defined in your kernel configuration
+ *
+ */
+
+#define IWL_DL_INFO (1<<0)
+#define IWL_DL_MAC80211 (1<<1)
+#define IWL_DL_HOST_COMMAND (1<<2)
+#define IWL_DL_STATE (1<<3)
+
+#define IWL_DL_RADIO (1<<7)
+#define IWL_DL_POWER (1<<8)
+#define IWL_DL_TEMP (1<<9)
+
+#define IWL_DL_NOTIF (1<<10)
+#define IWL_DL_SCAN (1<<11)
+#define IWL_DL_ASSOC (1<<12)
+#define IWL_DL_DROP (1<<13)
+
+#define IWL_DL_TXPOWER (1<<14)
+
+#define IWL_DL_AP (1<<15)
+
+#define IWL_DL_FW (1<<16)
+#define IWL_DL_RF_KILL (1<<17)
+#define IWL_DL_FW_ERRORS (1<<18)
+
+#define IWL_DL_LED (1<<19)
+
+#define IWL_DL_RATE (1<<20)
+
+#define IWL_DL_CALIB (1<<21)
+#define IWL_DL_WEP (1<<22)
+#define IWL_DL_TX (1<<23)
+#define IWL_DL_RX (1<<24)
+#define IWL_DL_ISR (1<<25)
+#define IWL_DL_HT (1<<26)
+#define IWL_DL_IO (1<<27)
+#define IWL_DL_11H (1<<28)
+
+#define IWL_DL_STATS (1<<29)
+#define IWL_DL_TX_REPLY (1<<30)
+#define IWL_DL_QOS (1<<31)
+
+#define IWL_ERROR(f, a...) printk(KERN_ERR DRV_NAME ": " f, ## a)
+#define IWL_WARNING(f, a...) printk(KERN_WARNING DRV_NAME ": " f, ## a)
+#define IWL_DEBUG_INFO(f, a...) IWL_DEBUG(IWL_DL_INFO, f, ## a)
+
+#define IWL_DEBUG_MAC80211(f, a...) IWL_DEBUG(IWL_DL_MAC80211, f, ## a)
+#define IWL_DEBUG_TEMP(f, a...) IWL_DEBUG(IWL_DL_TEMP, f, ## a)
+#define IWL_DEBUG_SCAN(f, a...) IWL_DEBUG(IWL_DL_SCAN, f, ## a)
+#define IWL_DEBUG_RX(f, a...) IWL_DEBUG(IWL_DL_RX, f, ## a)
+#define IWL_DEBUG_TX(f, a...) IWL_DEBUG(IWL_DL_TX, f, ## a)
+#define IWL_DEBUG_ISR(f, a...) IWL_DEBUG(IWL_DL_ISR, f, ## a)
+#define IWL_DEBUG_LED(f, a...) IWL_DEBUG(IWL_DL_LED, f, ## a)
+#define IWL_DEBUG_WEP(f, a...) IWL_DEBUG(IWL_DL_WEP, f, ## a)
+#define IWL_DEBUG_HC(f, a...) IWL_DEBUG(IWL_DL_HOST_COMMAND, f, ## a)
+#define IWL_DEBUG_CALIB(f, a...) IWL_DEBUG(IWL_DL_CALIB, f, ## a)
+#define IWL_DEBUG_FW(f, a...) IWL_DEBUG(IWL_DL_FW, f, ## a)
+#define IWL_DEBUG_RF_KILL(f, a...) IWL_DEBUG(IWL_DL_RF_KILL, f, ## a)
+#define IWL_DEBUG_DROP(f, a...) IWL_DEBUG(IWL_DL_DROP, f, ## a)
+#define IWL_DEBUG_DROP_LIMIT(f, a...) IWL_DEBUG_LIMIT(IWL_DL_DROP, f, ## a)
+#define IWL_DEBUG_AP(f, a...) IWL_DEBUG(IWL_DL_AP, f, ## a)
+#define IWL_DEBUG_TXPOWER(f, a...) IWL_DEBUG(IWL_DL_TXPOWER, f, ## a)
+#define IWL_DEBUG_IO(f, a...) IWL_DEBUG(IWL_DL_IO, f, ## a)
+#define IWL_DEBUG_RATE(f, a...) IWL_DEBUG(IWL_DL_RATE, f, ## a)
+#define IWL_DEBUG_RATE_LIMIT(f, a...) IWL_DEBUG_LIMIT(IWL_DL_RATE, f, ## a)
+#define IWL_DEBUG_NOTIF(f, a...) IWL_DEBUG(IWL_DL_NOTIF, f, ## a)
+#define IWL_DEBUG_ASSOC(f, a...) IWL_DEBUG(IWL_DL_ASSOC | IWL_DL_INFO, f, ## a)
+#define IWL_DEBUG_ASSOC_LIMIT(f, a...) \
+ IWL_DEBUG_LIMIT(IWL_DL_ASSOC | IWL_DL_INFO, f, ## a)
+#define IWL_DEBUG_HT(f, a...) IWL_DEBUG(IWL_DL_HT, f, ## a)
+#define IWL_DEBUG_STATS(f, a...) IWL_DEBUG(IWL_DL_STATS, f, ## a)
+#define IWL_DEBUG_TX_REPLY(f, a...) IWL_DEBUG(IWL_DL_TX_REPLY, f, ## a)
+#define IWL_DEBUG_QOS(f, a...) IWL_DEBUG(IWL_DL_QOS, f, ## a)
+#define IWL_DEBUG_RADIO(f, a...) IWL_DEBUG(IWL_DL_RADIO, f, ## a)
+#define IWL_DEBUG_POWER(f, a...) IWL_DEBUG(IWL_DL_POWER, f, ## a)
+#define IWL_DEBUG_11H(f, a...) IWL_DEBUG(IWL_DL_11H, f, ## a)
+
+#endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-hw.h b/drivers/net/wireless/iwlwifi/iwl-3945-hw.h
index b127450..3020e5d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-hw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-hw.h
@@ -8,7 +8,7 @@
* Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU Geeral Public License as
+ * it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
@@ -60,31 +60,647 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
+/*
+ * Please use this file (iwl-3945-hw.h) only for hardware-related definitions.
+ * Please use iwl-3945-commands.h for uCode API definitions.
+ * Please use iwl-3945.h for driver implementation definitions.
+ */
#ifndef __iwl_3945_hw__
#define __iwl_3945_hw__
-#define IWL_RX_BUF_SIZE 3000
-#define IWL_MAX_BSM_SIZE ALM_RTC_INST_SIZE
+/*
+ * uCode queue management definitions ...
+ * Queue #4 is the command queue for 3945 and 4965.
+ */
+#define IWL_CMD_QUEUE_NUM 4
+
+/* Tx rates */
+#define IWL_CCK_RATES 4
+#define IWL_OFDM_RATES 8
+#define IWL_HT_RATES 0
+#define IWL_MAX_RATES (IWL_CCK_RATES+IWL_OFDM_RATES+IWL_HT_RATES)
+
+/* Time constants */
+#define SHORT_SLOT_TIME 9
+#define LONG_SLOT_TIME 20
+
+/* RSSI to dBm */
+#define IWL_RSSI_OFFSET 95
+
+/*
+ * EEPROM related constants, enums, and structures.
+ */
+
+/*
+ * EEPROM access time values:
+ *
+ * Driver initiates EEPROM read by writing byte address << 1 to CSR_EEPROM_REG,
+ * then clearing (with subsequent read/modify/write) CSR_EEPROM_REG bit
+ * CSR_EEPROM_REG_BIT_CMD (0x2).
+ * Driver then polls CSR_EEPROM_REG for CSR_EEPROM_REG_READ_VALID_MSK (0x1).
+ * When polling, wait 10 uSec between polling loops, up to a maximum 5000 uSec.
+ * Driver reads 16-bit value from bits 31-16 of CSR_EEPROM_REG.
+ */
+#define IWL_EEPROM_ACCESS_TIMEOUT 5000 /* uSec */
+#define IWL_EEPROM_ACCESS_DELAY 10 /* uSec */
+
+/*
+ * Regulatory channel usage flags in EEPROM struct iwl_eeprom_channel.flags.
+ *
+ * IBSS and/or AP operation is allowed *only* on those channels with
+ * (VALID && IBSS && ACTIVE && !RADAR). This restriction is in place because
+ * RADAR detection is not supported by the 3945 driver, but is a
+ * requirement for establishing a new network for legal operation on channels
+ * requiring RADAR detection or restricting ACTIVE scanning.
+ *
+ * NOTE: "WIDE" flag indicates that 20 MHz channel is supported;
+ * 3945 does not support FAT 40 MHz-wide channels.
+ *
+ * NOTE: Using a channel inappropriately will result in a uCode error!
+ */
+enum {
+ EEPROM_CHANNEL_VALID = (1 << 0), /* usable for this SKU/geo */
+ EEPROM_CHANNEL_IBSS = (1 << 1), /* usable as an IBSS channel */
+ /* Bit 2 Reserved */
+ EEPROM_CHANNEL_ACTIVE = (1 << 3), /* active scanning allowed */
+ EEPROM_CHANNEL_RADAR = (1 << 4), /* radar detection required */
+ EEPROM_CHANNEL_WIDE = (1 << 5), /* 20 MHz channel okay */
+ EEPROM_CHANNEL_NARROW = (1 << 6), /* 10 MHz channel (not used) */
+ EEPROM_CHANNEL_DFS = (1 << 7), /* dynamic freq selection candidate */
+};
+
+/* SKU Capabilities */
+#define EEPROM_SKU_CAP_SW_RF_KILL_ENABLE (1 << 0)
+#define EEPROM_SKU_CAP_HW_RF_KILL_ENABLE (1 << 1)
+#define EEPROM_SKU_CAP_OP_MODE_MRC (1 << 7)
+
+/* *regulatory* channel data from eeprom, one for each channel */
+struct iwl3945_eeprom_channel {
+ u8 flags; /* flags copied from EEPROM */
+ s8 max_power_avg; /* max power (dBm) on this chnl, limit 31 */
+} __attribute__ ((packed));
+
+/*
+ * Mapping of a Tx power level, at factory calibration temperature,
+ * to a radio/DSP gain table index.
+ * One for each of 5 "sample" power levels in each band.
+ * v_det is measured at the factory, using the 3945's built-in power amplifier
+ * (PA) output voltage detector. This same detector is used during Tx of
+ * long packets in normal operation to provide feedback as to proper output
+ * level.
+ * Data copied from EEPROM.
+ * DO NOT ALTER THIS STRUCTURE!!!
+ */
+struct iwl3945_eeprom_txpower_sample {
+ u8 gain_index; /* index into power (gain) setup table ... */
+ s8 power; /* ... for this pwr level for this chnl group */
+ u16 v_det; /* PA output voltage */
+} __attribute__ ((packed));
+
+/*
+ * Mappings of Tx power levels -> nominal radio/DSP gain table indexes.
+ * One for each channel group (a.k.a. "band") (1 for BG, 4 for A).
+ * Tx power setup code interpolates between the 5 "sample" power levels
+ * to determine the nominal setup for a requested power level.
+ * Data copied from EEPROM.
+ * DO NOT ALTER THIS STRUCTURE!!!
+ */
+struct iwl3945_eeprom_txpower_group {
+ struct iwl3945_eeprom_txpower_sample samples[5]; /* 5 power levels */
+ s32 a, b, c, d, e; /* coefficients for voltage->power
+ * formula (signed) */
+ s32 Fa, Fb, Fc, Fd, Fe; /* these modify coeffs based on
+ * frequency (signed) */
+ s8 saturation_power; /* highest power possible by h/w in this
+ * band */
+ u8 group_channel; /* "representative" channel # in this band */
+ s16 temperature; /* h/w temperature at factory calib this band
+ * (signed) */
+} __attribute__ ((packed));
+
+/*
+ * Temperature-based Tx-power compensation data, not band-specific.
+ * These coefficients are use to modify a/b/c/d/e coeffs based on
+ * difference between current temperature and factory calib temperature.
+ * Data copied from EEPROM.
+ */
+struct iwl3945_eeprom_temperature_corr {
+ u32 Ta;
+ u32 Tb;
+ u32 Tc;
+ u32 Td;
+ u32 Te;
+} __attribute__ ((packed));
+
+/*
+ * EEPROM map
+ */
+struct iwl3945_eeprom {
+ u8 reserved0[16];
+#define EEPROM_DEVICE_ID (2*0x08) /* 2 bytes */
+ u16 device_id; /* abs.ofs: 16 */
+ u8 reserved1[2];
+#define EEPROM_PMC (2*0x0A) /* 2 bytes */
+ u16 pmc; /* abs.ofs: 20 */
+ u8 reserved2[20];
+#define EEPROM_MAC_ADDRESS (2*0x15) /* 6 bytes */
+ u8 mac_address[6]; /* abs.ofs: 42 */
+ u8 reserved3[58];
+#define EEPROM_BOARD_REVISION (2*0x35) /* 2 bytes */
+ u16 board_revision; /* abs.ofs: 106 */
+ u8 reserved4[11];
+#define EEPROM_BOARD_PBA_NUMBER (2*0x3B+1) /* 9 bytes */
+ u8 board_pba_number[9]; /* abs.ofs: 119 */
+ u8 reserved5[8];
+#define EEPROM_VERSION (2*0x44) /* 2 bytes */
+ u16 version; /* abs.ofs: 136 */
+#define EEPROM_SKU_CAP (2*0x45) /* 1 bytes */
+ u8 sku_cap; /* abs.ofs: 138 */
+#define EEPROM_LEDS_MODE (2*0x45+1) /* 1 bytes */
+ u8 leds_mode; /* abs.ofs: 139 */
+#define EEPROM_OEM_MODE (2*0x46) /* 2 bytes */
+ u16 oem_mode;
+#define EEPROM_WOWLAN_MODE (2*0x47) /* 2 bytes */
+ u16 wowlan_mode; /* abs.ofs: 142 */
+#define EEPROM_LEDS_TIME_INTERVAL (2*0x48) /* 2 bytes */
+ u16 leds_time_interval; /* abs.ofs: 144 */
+#define EEPROM_LEDS_OFF_TIME (2*0x49) /* 1 bytes */
+ u8 leds_off_time; /* abs.ofs: 146 */
+#define EEPROM_LEDS_ON_TIME (2*0x49+1) /* 1 bytes */
+ u8 leds_on_time; /* abs.ofs: 147 */
+#define EEPROM_ALMGOR_M_VERSION (2*0x4A) /* 1 bytes */
+ u8 almgor_m_version; /* abs.ofs: 148 */
+#define EEPROM_ANTENNA_SWITCH_TYPE (2*0x4A+1) /* 1 bytes */
+ u8 antenna_switch_type; /* abs.ofs: 149 */
+ u8 reserved6[42];
+#define EEPROM_REGULATORY_SKU_ID (2*0x60) /* 4 bytes */
+ u8 sku_id[4]; /* abs.ofs: 192 */
+
+/*
+ * Per-channel regulatory data.
+ *
+ * Each channel that *might* be supported by 3945 or 4965 has a fixed location
+ * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
+ * txpower (MSB).
+ *
+ * Entries immediately below are for 20 MHz channel width. FAT (40 MHz)
+ * channels (only for 4965, not supported by 3945) appear later in the EEPROM.
+ *
+ * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
+ */
+#define EEPROM_REGULATORY_BAND_1 (2*0x62) /* 2 bytes */
+ u16 band_1_count; /* abs.ofs: 196 */
+#define EEPROM_REGULATORY_BAND_1_CHANNELS (2*0x63) /* 28 bytes */
+ struct iwl3945_eeprom_channel band_1_channels[14]; /* abs.ofs: 196 */
+
+/*
+ * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196,
+ * 5.0 GHz channels 7, 8, 11, 12, 16
+ * (4915-5080MHz) (none of these is ever supported)
+ */
+#define EEPROM_REGULATORY_BAND_2 (2*0x71) /* 2 bytes */
+ u16 band_2_count; /* abs.ofs: 226 */
+#define EEPROM_REGULATORY_BAND_2_CHANNELS (2*0x72) /* 26 bytes */
+ struct iwl3945_eeprom_channel band_2_channels[13]; /* abs.ofs: 228 */
+
+/*
+ * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
+ * (5170-5320MHz)
+ */
+#define EEPROM_REGULATORY_BAND_3 (2*0x7F) /* 2 bytes */
+ u16 band_3_count; /* abs.ofs: 254 */
+#define EEPROM_REGULATORY_BAND_3_CHANNELS (2*0x80) /* 24 bytes */
+ struct iwl3945_eeprom_channel band_3_channels[12]; /* abs.ofs: 256 */
+
+/*
+ * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
+ * (5500-5700MHz)
+ */
+#define EEPROM_REGULATORY_BAND_4 (2*0x8C) /* 2 bytes */
+ u16 band_4_count; /* abs.ofs: 280 */
+#define EEPROM_REGULATORY_BAND_4_CHANNELS (2*0x8D) /* 22 bytes */
+ struct iwl3945_eeprom_channel band_4_channels[11]; /* abs.ofs: 282 */
+
+/*
+ * 5.7 GHz channels 145, 149, 153, 157, 161, 165
+ * (5725-5825MHz)
+ */
+#define EEPROM_REGULATORY_BAND_5 (2*0x98) /* 2 bytes */
+ u16 band_5_count; /* abs.ofs: 304 */
+#define EEPROM_REGULATORY_BAND_5_CHANNELS (2*0x99) /* 12 bytes */
+ struct iwl3945_eeprom_channel band_5_channels[6]; /* abs.ofs: 306 */
+
+ u8 reserved9[194];
+
+/*
+ * 3945 Txpower calibration data.
+ */
+#define EEPROM_TXPOWER_CALIB_GROUP0 0x200
+#define EEPROM_TXPOWER_CALIB_GROUP1 0x240
+#define EEPROM_TXPOWER_CALIB_GROUP2 0x280
+#define EEPROM_TXPOWER_CALIB_GROUP3 0x2c0
+#define EEPROM_TXPOWER_CALIB_GROUP4 0x300
+#define IWL_NUM_TX_CALIB_GROUPS 5
+ struct iwl3945_eeprom_txpower_group groups[IWL_NUM_TX_CALIB_GROUPS];
+/* abs.ofs: 512 */
+#define EEPROM_CALIB_TEMPERATURE_CORRECT 0x340
+ struct iwl3945_eeprom_temperature_corr corrections; /* abs.ofs: 832 */
+ u8 reserved16[172]; /* fill out to full 1024 byte block */
+} __attribute__ ((packed));
+
+#define IWL_EEPROM_IMAGE_SIZE 1024
+
+/* End of EEPROM */
+
+
+#include "iwl-3945-commands.h"
+
+#define PCI_LINK_CTRL 0x0F0
+#define PCI_POWER_SOURCE 0x0C8
+#define PCI_REG_WUM8 0x0E8
+#define PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT (0x80000000)
+
+/*=== CSR (control and status registers) ===*/
+#define CSR_BASE (0x000)
+
+#define CSR_SW_VER (CSR_BASE+0x000)
+#define CSR_HW_IF_CONFIG_REG (CSR_BASE+0x000) /* hardware interface config */
+#define CSR_INT_COALESCING (CSR_BASE+0x004) /* accum ints, 32-usec units */
+#define CSR_INT (CSR_BASE+0x008) /* host interrupt status/ack */
+#define CSR_INT_MASK (CSR_BASE+0x00c) /* host interrupt enable */
+#define CSR_FH_INT_STATUS (CSR_BASE+0x010) /* busmaster int status/ack*/
+#define CSR_GPIO_IN (CSR_BASE+0x018) /* read external chip pins */
+#define CSR_RESET (CSR_BASE+0x020) /* busmaster enable, NMI, etc*/
+#define CSR_GP_CNTRL (CSR_BASE+0x024)
+
+/*
+ * Hardware revision info
+ * Bit fields:
+ * 31-8: Reserved
+ * 7-4: Type of device: 0x0 = 4965, 0xd = 3945
+ * 3-2: Revision step: 0 = A, 1 = B, 2 = C, 3 = D
+ * 1-0: "Dash" value, as in A-1, etc.
+ */
+#define CSR_HW_REV (CSR_BASE+0x028)
+
+/* EEPROM reads */
+#define CSR_EEPROM_REG (CSR_BASE+0x02c)
+#define CSR_EEPROM_GP (CSR_BASE+0x030)
+#define CSR_GP_UCODE (CSR_BASE+0x044)
+#define CSR_UCODE_DRV_GP1 (CSR_BASE+0x054)
+#define CSR_UCODE_DRV_GP1_SET (CSR_BASE+0x058)
+#define CSR_UCODE_DRV_GP1_CLR (CSR_BASE+0x05c)
+#define CSR_UCODE_DRV_GP2 (CSR_BASE+0x060)
+#define CSR_GIO_CHICKEN_BITS (CSR_BASE+0x100)
+
+/* Analog phase-lock-loop configuration (3945 only)
+ * Set bit 24. */
+#define CSR_ANA_PLL_CFG (CSR_BASE+0x20c)
+
+/* Bits for CSR_HW_IF_CONFIG_REG */
+#define CSR_HW_IF_CONFIG_REG_BIT_ALMAGOR_MB (0x00000100)
+#define CSR_HW_IF_CONFIG_REG_BIT_ALMAGOR_MM (0x00000200)
+#define CSR_HW_IF_CONFIG_REG_BIT_SKU_MRC (0x00000400)
+#define CSR_HW_IF_CONFIG_REG_BIT_BOARD_TYPE (0x00000800)
+#define CSR_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A (0x00000000)
+#define CSR_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B (0x00001000)
+#define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM (0x00200000)
+
+/* interrupt flags in INTA, set by uCode or hardware (e.g. dma),
+ * acknowledged (reset) by host writing "1" to flagged bits. */
+#define CSR_INT_BIT_FH_RX (1<<31) /* Rx DMA, cmd responses, FH_INT[17:16] */
+#define CSR_INT_BIT_HW_ERR (1<<29) /* DMA hardware error FH_INT[31] */
+#define CSR_INT_BIT_DNLD (1<<28) /* uCode Download */
+#define CSR_INT_BIT_FH_TX (1<<27) /* Tx DMA FH_INT[1:0] */
+#define CSR_INT_BIT_MAC_CLK_ACTV (1<<26) /* NIC controller's clock toggled on/off */
+#define CSR_INT_BIT_SW_ERR (1<<25) /* uCode error */
+#define CSR_INT_BIT_RF_KILL (1<<7) /* HW RFKILL switch GP_CNTRL[27] toggled */
+#define CSR_INT_BIT_CT_KILL (1<<6) /* Critical temp (chip too hot) rfkill */
+#define CSR_INT_BIT_SW_RX (1<<3) /* Rx, command responses, 3945 */
+#define CSR_INT_BIT_WAKEUP (1<<1) /* NIC controller waking up (pwr mgmt) */
+#define CSR_INT_BIT_ALIVE (1<<0) /* uCode interrupts once it initializes */
+
+#define CSR_INI_SET_MASK (CSR_INT_BIT_FH_RX | \
+ CSR_INT_BIT_HW_ERR | \
+ CSR_INT_BIT_FH_TX | \
+ CSR_INT_BIT_SW_ERR | \
+ CSR_INT_BIT_RF_KILL | \
+ CSR_INT_BIT_SW_RX | \
+ CSR_INT_BIT_WAKEUP | \
+ CSR_INT_BIT_ALIVE)
+
+/* interrupt flags in FH (flow handler) (PCI busmaster DMA) */
+#define CSR_FH_INT_BIT_ERR (1<<31) /* Error */
+#define CSR_FH_INT_BIT_HI_PRIOR (1<<30) /* High priority Rx, bypass coalescing */
+#define CSR_FH_INT_BIT_RX_CHNL2 (1<<18) /* Rx channel 2 (3945 only) */
+#define CSR_FH_INT_BIT_RX_CHNL1 (1<<17) /* Rx channel 1 */
+#define CSR_FH_INT_BIT_RX_CHNL0 (1<<16) /* Rx channel 0 */
+#define CSR_FH_INT_BIT_TX_CHNL6 (1<<6) /* Tx channel 6 (3945 only) */
+#define CSR_FH_INT_BIT_TX_CHNL1 (1<<1) /* Tx channel 1 */
+#define CSR_FH_INT_BIT_TX_CHNL0 (1<<0) /* Tx channel 0 */
+
+#define CSR_FH_INT_RX_MASK (CSR_FH_INT_BIT_HI_PRIOR | \
+ CSR_FH_INT_BIT_RX_CHNL2 | \
+ CSR_FH_INT_BIT_RX_CHNL1 | \
+ CSR_FH_INT_BIT_RX_CHNL0)
+
+#define CSR_FH_INT_TX_MASK (CSR_FH_INT_BIT_TX_CHNL6 | \
+ CSR_FH_INT_BIT_TX_CHNL1 | \
+ CSR_FH_INT_BIT_TX_CHNL0 )
+
+
+/* RESET */
+#define CSR_RESET_REG_FLAG_NEVO_RESET (0x00000001)
+#define CSR_RESET_REG_FLAG_FORCE_NMI (0x00000002)
+#define CSR_RESET_REG_FLAG_SW_RESET (0x00000080)
+#define CSR_RESET_REG_FLAG_MASTER_DISABLED (0x00000100)
+#define CSR_RESET_REG_FLAG_STOP_MASTER (0x00000200)
+
+/* GP (general purpose) CONTROL */
+#define CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY (0x00000001)
+#define CSR_GP_CNTRL_REG_FLAG_INIT_DONE (0x00000004)
+#define CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ (0x00000008)
+#define CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP (0x00000010)
+
+#define CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN (0x00000001)
+
+#define CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE (0x07000000)
+#define CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE (0x04000000)
+#define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW (0x08000000)
+
+
+/* EEPROM REG */
+#define CSR_EEPROM_REG_READ_VALID_MSK (0x00000001)
+#define CSR_EEPROM_REG_BIT_CMD (0x00000002)
+
+/* EEPROM GP */
+#define CSR_EEPROM_GP_VALID_MSK (0x00000006)
+#define CSR_EEPROM_GP_BAD_SIGNATURE (0x00000000)
+#define CSR_EEPROM_GP_IF_OWNER_MSK (0x00000180)
+
+/* UCODE DRV GP */
+#define CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP (0x00000001)
+#define CSR_UCODE_SW_BIT_RFKILL (0x00000002)
+#define CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED (0x00000004)
+#define CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT (0x00000008)
+
+/* GPIO */
+#define CSR_GPIO_IN_BIT_AUX_POWER (0x00000200)
+#define CSR_GPIO_IN_VAL_VAUX_PWR_SRC (0x00000000)
+#define CSR_GPIO_IN_VAL_VMAIN_PWR_SRC CSR_GPIO_IN_BIT_AUX_POWER
+
+/* GI Chicken Bits */
+#define CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX (0x00800000)
+#define CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER (0x20000000)
+
+/* CSR_ANA_PLL_CFG */
+#define CSR_ANA_PLL_CFG_SH (0x00880300)
+
+/*=== HBUS (Host-side Bus) ===*/
+#define HBUS_BASE (0x400)
+
+/*
+ * Registers for accessing device's internal SRAM memory (e.g. SCD SRAM
+ * structures, error log, event log, verifying uCode load).
+ * First write to address register, then read from or write to data register
+ * to complete the job. Once the address register is set up, accesses to
+ * data registers auto-increment the address by one dword.
+ * Bit usage for address registers (read or write):
+ * 0-31: memory address within device
+ */
+#define HBUS_TARG_MEM_RADDR (HBUS_BASE+0x00c)
+#define HBUS_TARG_MEM_WADDR (HBUS_BASE+0x010)
+#define HBUS_TARG_MEM_WDAT (HBUS_BASE+0x018)
+#define HBUS_TARG_MEM_RDAT (HBUS_BASE+0x01c)
+
+/*
+ * Registers for accessing device's internal peripheral registers
+ * (e.g. SCD, BSM, etc.). First write to address register,
+ * then read from or write to data register to complete the job.
+ * Bit usage for address registers (read or write):
+ * 0-15: register address (offset) within device
+ * 24-25: (# bytes - 1) to read or write (e.g. 3 for dword)
+ */
+#define HBUS_TARG_PRPH_WADDR (HBUS_BASE+0x044)
+#define HBUS_TARG_PRPH_RADDR (HBUS_BASE+0x048)
+#define HBUS_TARG_PRPH_WDAT (HBUS_BASE+0x04c)
+#define HBUS_TARG_PRPH_RDAT (HBUS_BASE+0x050)
+
+/*
+ * Per-Tx-queue write pointer (index, really!) (3945 and 4965).
+ * Indicates index to next TFD that driver will fill (1 past latest filled).
+ * Bit usage:
+ * 0-7: queue write index
+ * 11-8: queue selector
+ */
+#define HBUS_TARG_WRPTR (HBUS_BASE+0x060)
+
+/* SCD (3945 Tx Frame Scheduler) */
+#define SCD_BASE (CSR_BASE + 0x2E00)
+
+#define SCD_MODE_REG (SCD_BASE + 0x000)
+#define SCD_ARASTAT_REG (SCD_BASE + 0x004)
+#define SCD_TXFACT_REG (SCD_BASE + 0x010)
+#define SCD_TXF4MF_REG (SCD_BASE + 0x014)
+#define SCD_TXF5MF_REG (SCD_BASE + 0x020)
+#define SCD_SBYP_MODE_1_REG (SCD_BASE + 0x02C)
+#define SCD_SBYP_MODE_2_REG (SCD_BASE + 0x030)
+
+/*=== FH (data Flow Handler) ===*/
+#define FH_BASE (0x800)
+
+#define FH_CBCC_TABLE (FH_BASE+0x140)
+#define FH_TFDB_TABLE (FH_BASE+0x180)
+#define FH_RCSR_TABLE (FH_BASE+0x400)
+#define FH_RSSR_TABLE (FH_BASE+0x4c0)
+#define FH_TCSR_TABLE (FH_BASE+0x500)
+#define FH_TSSR_TABLE (FH_BASE+0x680)
+
+/* TFDB (Transmit Frame Buffer Descriptor) */
+#define FH_TFDB(_channel, buf) \
+ (FH_TFDB_TABLE+((_channel)*2+(buf))*0x28)
+#define ALM_FH_TFDB_CHNL_BUF_CTRL_REG(_channel) \
+ (FH_TFDB_TABLE + 0x50 * _channel)
+/* CBCC _channel is [0,2] */
+#define FH_CBCC(_channel) (FH_CBCC_TABLE+(_channel)*0x8)
+#define FH_CBCC_CTRL(_channel) (FH_CBCC(_channel)+0x00)
+#define FH_CBCC_BASE(_channel) (FH_CBCC(_channel)+0x04)
+
+/* RCSR _channel is [0,2] */
+#define FH_RCSR(_channel) (FH_RCSR_TABLE+(_channel)*0x40)
+#define FH_RCSR_CONFIG(_channel) (FH_RCSR(_channel)+0x00)
+#define FH_RCSR_RBD_BASE(_channel) (FH_RCSR(_channel)+0x04)
+#define FH_RCSR_WPTR(_channel) (FH_RCSR(_channel)+0x20)
+#define FH_RCSR_RPTR_ADDR(_channel) (FH_RCSR(_channel)+0x24)
+
+#define FH_RSCSR_CHNL0_WPTR (FH_RCSR_WPTR(0))
+
+/* RSSR */
+#define FH_RSSR_CTRL (FH_RSSR_TABLE+0x000)
+#define FH_RSSR_STATUS (FH_RSSR_TABLE+0x004)
+/* TCSR */
+#define FH_TCSR(_channel) (FH_TCSR_TABLE+(_channel)*0x20)
+#define FH_TCSR_CONFIG(_channel) (FH_TCSR(_channel)+0x00)
+#define FH_TCSR_CREDIT(_channel) (FH_TCSR(_channel)+0x04)
+#define FH_TCSR_BUFF_STTS(_channel) (FH_TCSR(_channel)+0x08)
+/* TSSR */
+#define FH_TSSR_CBB_BASE (FH_TSSR_TABLE+0x000)
+#define FH_TSSR_MSG_CONFIG (FH_TSSR_TABLE+0x008)
+#define FH_TSSR_TX_STATUS (FH_TSSR_TABLE+0x010)
+
+
+/* DBM */
+
+#define ALM_FH_SRVC_CHNL (6)
+
+#define ALM_FH_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE (20)
+#define ALM_FH_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH (4)
+
+#define ALM_FH_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN (0x08000000)
+
+#define ALM_FH_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE (0x80000000)
+
+#define ALM_FH_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE (0x20000000)
+
+#define ALM_FH_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 (0x01000000)
+
+#define ALM_FH_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST (0x00001000)
+
+#define ALM_FH_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH (0x00000000)
+
+#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF (0x00000000)
+#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRIVER (0x00000001)
+
+#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL (0x00000000)
+#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL (0x00000008)
+
+#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD (0x00200000)
+
+#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT (0x00000000)
+
+#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000)
+#define ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000)
+
+#define ALM_FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID (0x00004000)
+
+#define ALM_FH_TCSR_CHNL_TX_BUF_STS_REG_BIT_TFDB_WPTR (0x00000001)
+
+#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON (0xFF000000)
+#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON (0x00FF0000)
+
+#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B (0x00000400)
+
+#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON (0x00000100)
+#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON (0x00000080)
+
+#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH (0x00000020)
+#define ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH (0x00000005)
+
+#define ALM_TB_MAX_BYTES_COUNT (0xFFF0)
+
+#define ALM_FH_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_channel) \
+ ((1LU << _channel) << 24)
+#define ALM_FH_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_channel) \
+ ((1LU << _channel) << 16)
+
+#define ALM_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_channel) \
+ (ALM_FH_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_channel) | \
+ ALM_FH_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_channel))
+#define PCI_CFG_REV_ID_BIT_BASIC_SKU (0x40) /* bit 6 */
+#define PCI_CFG_REV_ID_BIT_RTP (0x80) /* bit 7 */
+
+#define TFD_QUEUE_MIN 0
+#define TFD_QUEUE_MAX 6
+#define TFD_QUEUE_SIZE_MAX (256)
+
+#define IWL_NUM_SCAN_RATES (2)
+
+#define IWL_DEFAULT_TX_RETRY 15
+
+/*********************************************/
+
+#define RFD_SIZE 4
+#define NUM_TFD_CHUNKS 4
+
+#define RX_QUEUE_SIZE 256
+#define RX_QUEUE_MASK 255
+#define RX_QUEUE_SIZE_LOG 8
+
+#define U32_PAD(n) ((4-(n))&0x3)
+
+#define TFD_CTL_COUNT_SET(n) (n<<24)
+#define TFD_CTL_COUNT_GET(ctl) ((ctl>>24) & 7)
+#define TFD_CTL_PAD_SET(n) (n<<28)
+#define TFD_CTL_PAD_GET(ctl) (ctl>>28)
+
+#define TFD_TX_CMD_SLOTS 256
+#define TFD_CMD_SLOTS 32
+
+#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl3945_cmd) - \
+ sizeof(struct iwl3945_cmd_meta))
+
+/*
+ * RX related structures and functions
+ */
+#define RX_FREE_BUFFERS 64
+#define RX_LOW_WATERMARK 8
+
+/* Sizes and addresses for instruction and data memory (SRAM) in
+ * 3945's embedded processor. Driver access is via HBUS_TARG_MEM_* regs. */
+#define RTC_INST_LOWER_BOUND (0x000000)
+#define ALM_RTC_INST_UPPER_BOUND (0x014000)
+
+#define RTC_DATA_LOWER_BOUND (0x800000)
+#define ALM_RTC_DATA_UPPER_BOUND (0x808000)
+
+#define ALM_RTC_INST_SIZE (ALM_RTC_INST_UPPER_BOUND - RTC_INST_LOWER_BOUND)
+#define ALM_RTC_DATA_SIZE (ALM_RTC_DATA_UPPER_BOUND - RTC_DATA_LOWER_BOUND)
+
#define IWL_MAX_INST_SIZE ALM_RTC_INST_SIZE
#define IWL_MAX_DATA_SIZE ALM_RTC_DATA_SIZE
-/* Base physical address of iwl_shared is provided to FH_TSSR_CBB_BASE
- * and &iwl_shared.rx_read_ptr[0] is provided to FH_RCSR_RPTR_ADDR(0) */
-struct iwl_shared {
+/* Size of uCode instruction memory in bootstrap state machine */
+#define IWL_MAX_BSM_SIZE ALM_RTC_INST_SIZE
+
+#define IWL_MAX_NUM_QUEUES 8
+
+static inline int iwl3945_hw_valid_rtc_data_addr(u32 addr)
+{
+ return (addr >= RTC_DATA_LOWER_BOUND) &&
+ (addr < ALM_RTC_DATA_UPPER_BOUND);
+}
+
+/* Base physical address of iwl3945_shared is provided to FH_TSSR_CBB_BASE
+ * and &iwl3945_shared.rx_read_ptr[0] is provided to FH_RCSR_RPTR_ADDR(0) */
+struct iwl3945_shared {
__le32 tx_base_ptr[8];
__le32 rx_read_ptr[3];
} __attribute__ ((packed));
-struct iwl_tfd_frame_data {
+struct iwl3945_tfd_frame_data {
__le32 addr;
__le32 len;
} __attribute__ ((packed));
-struct iwl_tfd_frame {
+struct iwl3945_tfd_frame {
__le32 control_flags;
- struct iwl_tfd_frame_data pa[4];
+ struct iwl3945_tfd_frame_data pa[4];
u8 reserved[28];
} __attribute__ ((packed));
+static inline u8 iwl3945_hw_get_rate(__le16 rate_n_flags)
+{
+ return le16_to_cpu(rate_n_flags) & 0xFF;
+}
+
+static inline u16 iwl3945_hw_get_rate_n_flags(__le16 rate_n_flags)
+{
+ return le16_to_cpu(rate_n_flags);
+}
+
+static inline __le16 iwl3945_hw_set_rate_n_flags(u8 rate, u16 flags)
+{
+ return cpu_to_le16((u16)rate|flags);
+}
#endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-io.h b/drivers/net/wireless/iwlwifi/iwl-3945-io.h
new file mode 100644
index 0000000..75e20d0
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-io.h
@@ -0,0 +1,431 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
+ *
+ * Portions of this file are derived from the ipw3945 project.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#ifndef __iwl3945_io_h__
+#define __iwl3945_io_h__
+
+#include <linux/io.h>
+
+#include "iwl-3945-debug.h"
+
+/*
+ * IO, register, and NIC memory access functions
+ *
+ * NOTE on naming convention and macro usage for these
+ *
+ * A single _ prefix before a an access function means that no state
+ * check or debug information is printed when that function is called.
+ *
+ * A double __ prefix before an access function means that state is checked
+ * and the current line number is printed in addition to any other debug output.
+ *
+ * The non-prefixed name is the #define that maps the caller into a
+ * #define that provides the caller's __LINE__ to the double prefix version.
+ *
+ * If you wish to call the function without any debug or state checking,
+ * you should use the single _ prefix version (as is used by dependent IO
+ * routines, for example _iwl3945_read_direct32 calls the non-check version of
+ * _iwl3945_read32.)
+ *
+ * These declarations are *extremely* useful in quickly isolating code deltas
+ * which result in misconfiguring of the hardware I/O. In combination with
+ * git-bisect and the IO debug level you can quickly determine the specific
+ * commit which breaks the IO sequence to the hardware.
+ *
+ */
+
+#define _iwl3945_write32(iwl, ofs, val) writel((val), (iwl)->hw_base + (ofs))
+#ifdef CONFIG_IWL3945_DEBUG
+static inline void __iwl3945_write32(const char *f, u32 l, struct iwl3945_priv *iwl,
+ u32 ofs, u32 val)
+{
+ IWL_DEBUG_IO("write32(0x%08X, 0x%08X) - %s %d\n", ofs, val, f, l);
+ _iwl3945_write32(iwl, ofs, val);
+}
+#define iwl3945_write32(iwl, ofs, val) \
+ __iwl3945_write32(__FILE__, __LINE__, iwl, ofs, val)
+#else
+#define iwl3945_write32(iwl, ofs, val) _iwl3945_write32(iwl, ofs, val)
+#endif
+
+#define _iwl3945_read32(iwl, ofs) readl((iwl)->hw_base + (ofs))
+#ifdef CONFIG_IWL3945_DEBUG
+static inline u32 __iwl3945_read32(char *f, u32 l, struct iwl3945_priv *iwl, u32 ofs)
+{
+ IWL_DEBUG_IO("read_direct32(0x%08X) - %s %d\n", ofs, f, l);
+ return _iwl3945_read32(iwl, ofs);
+}
+#define iwl3945_read32(iwl, ofs) __iwl3945_read32(__FILE__, __LINE__, iwl, ofs)
+#else
+#define iwl3945_read32(p, o) _iwl3945_read32(p, o)
+#endif
+
+static inline int _iwl3945_poll_bit(struct iwl3945_priv *priv, u32 addr,
+ u32 bits, u32 mask, int timeout)
+{
+ int i = 0;
+
+ do {
+ if ((_iwl3945_read32(priv, addr) & mask) == (bits & mask))
+ return i;
+ mdelay(10);
+ i += 10;
+ } while (i < timeout);
+
+ return -ETIMEDOUT;
+}
+#ifdef CONFIG_IWL3945_DEBUG
+static inline int __iwl3945_poll_bit(const char *f, u32 l,
+ struct iwl3945_priv *priv, u32 addr,
+ u32 bits, u32 mask, int timeout)
+{
+ int ret = _iwl3945_poll_bit(priv, addr, bits, mask, timeout);
+ if (unlikely(ret == -ETIMEDOUT))
+ IWL_DEBUG_IO
+ ("poll_bit(0x%08X, 0x%08X, 0x%08X) - timedout - %s %d\n",
+ addr, bits, mask, f, l);
+ else
+ IWL_DEBUG_IO
+ ("poll_bit(0x%08X, 0x%08X, 0x%08X) = 0x%08X - %s %d\n",
+ addr, bits, mask, ret, f, l);
+ return ret;
+}
+#define iwl3945_poll_bit(iwl, addr, bits, mask, timeout) \
+ __iwl3945_poll_bit(__FILE__, __LINE__, iwl, addr, bits, mask, timeout)
+#else
+#define iwl3945_poll_bit(p, a, b, m, t) _iwl3945_poll_bit(p, a, b, m, t)
+#endif
+
+static inline void _iwl3945_set_bit(struct iwl3945_priv *priv, u32 reg, u32 mask)
+{
+ _iwl3945_write32(priv, reg, _iwl3945_read32(priv, reg) | mask);
+}
+#ifdef CONFIG_IWL3945_DEBUG
+static inline void __iwl3945_set_bit(const char *f, u32 l,
+ struct iwl3945_priv *priv, u32 reg, u32 mask)
+{
+ u32 val = _iwl3945_read32(priv, reg) | mask;
+ IWL_DEBUG_IO("set_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
+ _iwl3945_write32(priv, reg, val);
+}
+#define iwl3945_set_bit(p, r, m) __iwl3945_set_bit(__FILE__, __LINE__, p, r, m)
+#else
+#define iwl3945_set_bit(p, r, m) _iwl3945_set_bit(p, r, m)
+#endif
+
+static inline void _iwl3945_clear_bit(struct iwl3945_priv *priv, u32 reg, u32 mask)
+{
+ _iwl3945_write32(priv, reg, _iwl3945_read32(priv, reg) & ~mask);
+}
+#ifdef CONFIG_IWL3945_DEBUG
+static inline void __iwl3945_clear_bit(const char *f, u32 l,
+ struct iwl3945_priv *priv, u32 reg, u32 mask)
+{
+ u32 val = _iwl3945_read32(priv, reg) & ~mask;
+ IWL_DEBUG_IO("clear_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
+ _iwl3945_write32(priv, reg, val);
+}
+#define iwl3945_clear_bit(p, r, m) __iwl3945_clear_bit(__FILE__, __LINE__, p, r, m)
+#else
+#define iwl3945_clear_bit(p, r, m) _iwl3945_clear_bit(p, r, m)
+#endif
+
+static inline int _iwl3945_grab_nic_access(struct iwl3945_priv *priv)
+{
+ int ret;
+ u32 gp_ctl;
+
+#ifdef CONFIG_IWL3945_DEBUG
+ if (atomic_read(&priv->restrict_refcnt))
+ return 0;
+#endif
+ if (test_bit(STATUS_RF_KILL_HW, &priv->status) ||
+ test_bit(STATUS_RF_KILL_SW, &priv->status)) {
+ IWL_WARNING("WARNING: Requesting MAC access during RFKILL "
+ "wakes up NIC\n");
+
+ /* 10 msec allows time for NIC to complete its data save */
+ gp_ctl = _iwl3945_read32(priv, CSR_GP_CNTRL);
+ if (gp_ctl & CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY) {
+ IWL_DEBUG_RF_KILL("Wait for complete power-down, "
+ "gpctl = 0x%08x\n", gp_ctl);
+ mdelay(10);
+ } else
+ IWL_DEBUG_RF_KILL("power-down complete, "
+ "gpctl = 0x%08x\n", gp_ctl);
+ }
+
+ /* this bit wakes up the NIC */
+ _iwl3945_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ ret = _iwl3945_poll_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN,
+ (CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY |
+ CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 50);
+ if (ret < 0) {
+ IWL_ERROR("MAC is in deep sleep!\n");
+ return -EIO;
+ }
+
+#ifdef CONFIG_IWL3945_DEBUG
+ atomic_inc(&priv->restrict_refcnt);
+#endif
+ return 0;
+}
+
+#ifdef CONFIG_IWL3945_DEBUG
+static inline int __iwl3945_grab_nic_access(const char *f, u32 l,
+ struct iwl3945_priv *priv)
+{
+ if (atomic_read(&priv->restrict_refcnt))
+ IWL_DEBUG_INFO("Grabbing access while already held at "
+ "line %d.\n", l);
+
+ IWL_DEBUG_IO("grabbing nic access - %s %d\n", f, l);
+ return _iwl3945_grab_nic_access(priv);
+}
+#define iwl3945_grab_nic_access(priv) \
+ __iwl3945_grab_nic_access(__FILE__, __LINE__, priv)
+#else
+#define iwl3945_grab_nic_access(priv) \
+ _iwl3945_grab_nic_access(priv)
+#endif
+
+static inline void _iwl3945_release_nic_access(struct iwl3945_priv *priv)
+{
+#ifdef CONFIG_IWL3945_DEBUG
+ if (atomic_dec_and_test(&priv->restrict_refcnt))
+#endif
+ _iwl3945_clear_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+}
+#ifdef CONFIG_IWL3945_DEBUG
+static inline void __iwl3945_release_nic_access(const char *f, u32 l,
+ struct iwl3945_priv *priv)
+{
+ if (atomic_read(&priv->restrict_refcnt) <= 0)
+ IWL_ERROR("Release unheld nic access at line %d.\n", l);
+
+ IWL_DEBUG_IO("releasing nic access - %s %d\n", f, l);
+ _iwl3945_release_nic_access(priv);
+}
+#define iwl3945_release_nic_access(priv) \
+ __iwl3945_release_nic_access(__FILE__, __LINE__, priv)
+#else
+#define iwl3945_release_nic_access(priv) \
+ _iwl3945_release_nic_access(priv)
+#endif
+
+static inline u32 _iwl3945_read_direct32(struct iwl3945_priv *priv, u32 reg)
+{
+ return _iwl3945_read32(priv, reg);
+}
+#ifdef CONFIG_IWL3945_DEBUG
+static inline u32 __iwl3945_read_direct32(const char *f, u32 l,
+ struct iwl3945_priv *priv, u32 reg)
+{
+ u32 value = _iwl3945_read_direct32(priv, reg);
+ if (!atomic_read(&priv->restrict_refcnt))
+ IWL_ERROR("Nic access not held from %s %d\n", f, l);
+ IWL_DEBUG_IO("read_direct32(0x%4X) = 0x%08x - %s %d \n", reg, value,
+ f, l);
+ return value;
+}
+#define iwl3945_read_direct32(priv, reg) \
+ __iwl3945_read_direct32(__FILE__, __LINE__, priv, reg)
+#else
+#define iwl3945_read_direct32 _iwl3945_read_direct32
+#endif
+
+static inline void _iwl3945_write_direct32(struct iwl3945_priv *priv,
+ u32 reg, u32 value)
+{
+ _iwl3945_write32(priv, reg, value);
+}
+#ifdef CONFIG_IWL3945_DEBUG
+static void __iwl3945_write_direct32(u32 line,
+ struct iwl3945_priv *priv, u32 reg, u32 value)
+{
+ if (!atomic_read(&priv->restrict_refcnt))
+ IWL_ERROR("Nic access not held from line %d\n", line);
+ _iwl3945_write_direct32(priv, reg, value);
+}
+#define iwl3945_write_direct32(priv, reg, value) \
+ __iwl3945_write_direct32(__LINE__, priv, reg, value)
+#else
+#define iwl3945_write_direct32 _iwl3945_write_direct32
+#endif
+
+static inline void iwl3945_write_reg_buf(struct iwl3945_priv *priv,
+ u32 reg, u32 len, u32 *values)
+{
+ u32 count = sizeof(u32);
+
+ if ((priv != NULL) && (values != NULL)) {
+ for (; 0 < len; len -= count, reg += count, values++)
+ _iwl3945_write_direct32(priv, reg, *values);
+ }
+}
+
+static inline int _iwl3945_poll_direct_bit(struct iwl3945_priv *priv,
+ u32 addr, u32 mask, int timeout)
+{
+ int i = 0;
+
+ do {
+ if ((_iwl3945_read_direct32(priv, addr) & mask) == mask)
+ return i;
+ mdelay(10);
+ i += 10;
+ } while (i < timeout);
+
+ return -ETIMEDOUT;
+}
+
+#ifdef CONFIG_IWL3945_DEBUG
+static inline int __iwl3945_poll_direct_bit(const char *f, u32 l,
+ struct iwl3945_priv *priv,
+ u32 addr, u32 mask, int timeout)
+{
+ int ret = _iwl3945_poll_direct_bit(priv, addr, mask, timeout);
+
+ if (unlikely(ret == -ETIMEDOUT))
+ IWL_DEBUG_IO("poll_direct_bit(0x%08X, 0x%08X) - "
+ "timedout - %s %d\n", addr, mask, f, l);
+ else
+ IWL_DEBUG_IO("poll_direct_bit(0x%08X, 0x%08X) = 0x%08X "
+ "- %s %d\n", addr, mask, ret, f, l);
+ return ret;
+}
+#define iwl3945_poll_direct_bit(iwl, addr, mask, timeout) \
+ __iwl3945_poll_direct_bit(__FILE__, __LINE__, iwl, addr, mask, timeout)
+#else
+#define iwl3945_poll_direct_bit _iwl3945_poll_direct_bit
+#endif
+
+static inline u32 _iwl3945_read_prph(struct iwl3945_priv *priv, u32 reg)
+{
+ _iwl3945_write_direct32(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
+ return _iwl3945_read_direct32(priv, HBUS_TARG_PRPH_RDAT);
+}
+#ifdef CONFIG_IWL3945_DEBUG
+static inline u32 __iwl3945_read_prph(u32 line, struct iwl3945_priv *priv, u32 reg)
+{
+ if (!atomic_read(&priv->restrict_refcnt))
+ IWL_ERROR("Nic access not held from line %d\n", line);
+ return _iwl3945_read_prph(priv, reg);
+}
+
+#define iwl3945_read_prph(priv, reg) \
+ __iwl3945_read_prph(__LINE__, priv, reg)
+#else
+#define iwl3945_read_prph _iwl3945_read_prph
+#endif
+
+static inline void _iwl3945_write_prph(struct iwl3945_priv *priv,
+ u32 addr, u32 val)
+{
+ _iwl3945_write_direct32(priv, HBUS_TARG_PRPH_WADDR,
+ ((addr & 0x0000FFFF) | (3 << 24)));
+ _iwl3945_write_direct32(priv, HBUS_TARG_PRPH_WDAT, val);
+}
+#ifdef CONFIG_IWL3945_DEBUG
+static inline void __iwl3945_write_prph(u32 line, struct iwl3945_priv *priv,
+ u32 addr, u32 val)
+{
+ if (!atomic_read(&priv->restrict_refcnt))
+ IWL_ERROR("Nic access from line %d\n", line);
+ _iwl3945_write_prph(priv, addr, val);
+}
+
+#define iwl3945_write_prph(priv, addr, val) \
+ __iwl3945_write_prph(__LINE__, priv, addr, val);
+#else
+#define iwl3945_write_prph _iwl3945_write_prph
+#endif
+
+#define _iwl3945_set_bits_prph(priv, reg, mask) \
+ _iwl3945_write_prph(priv, reg, (_iwl3945_read_prph(priv, reg) | mask))
+#ifdef CONFIG_IWL3945_DEBUG
+static inline void __iwl3945_set_bits_prph(u32 line, struct iwl3945_priv *priv,
+ u32 reg, u32 mask)
+{
+ if (!atomic_read(&priv->restrict_refcnt))
+ IWL_ERROR("Nic access not held from line %d\n", line);
+
+ _iwl3945_set_bits_prph(priv, reg, mask);
+}
+#define iwl3945_set_bits_prph(priv, reg, mask) \
+ __iwl3945_set_bits_prph(__LINE__, priv, reg, mask)
+#else
+#define iwl3945_set_bits_prph _iwl3945_set_bits_prph
+#endif
+
+#define _iwl3945_set_bits_mask_prph(priv, reg, bits, mask) \
+ _iwl3945_write_prph(priv, reg, ((_iwl3945_read_prph(priv, reg) & mask) | bits))
+
+#ifdef CONFIG_IWL3945_DEBUG
+static inline void __iwl3945_set_bits_mask_prph(u32 line,
+ struct iwl3945_priv *priv, u32 reg, u32 bits, u32 mask)
+{
+ if (!atomic_read(&priv->restrict_refcnt))
+ IWL_ERROR("Nic access not held from line %d\n", line);
+ _iwl3945_set_bits_mask_prph(priv, reg, bits, mask);
+}
+#define iwl3945_set_bits_mask_prph(priv, reg, bits, mask) \
+ __iwl3945_set_bits_mask_prph(__LINE__, priv, reg, bits, mask)
+#else
+#define iwl3945_set_bits_mask_prph _iwl3945_set_bits_mask_prph
+#endif
+
+static inline void iwl3945_clear_bits_prph(struct iwl3945_priv
+ *priv, u32 reg, u32 mask)
+{
+ u32 val = _iwl3945_read_prph(priv, reg);
+ _iwl3945_write_prph(priv, reg, (val & ~mask));
+}
+
+static inline u32 iwl3945_read_targ_mem(struct iwl3945_priv *priv, u32 addr)
+{
+ iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, addr);
+ return iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+}
+
+static inline void iwl3945_write_targ_mem(struct iwl3945_priv *priv, u32 addr, u32 val)
+{
+ iwl3945_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
+ iwl3945_write_direct32(priv, HBUS_TARG_MEM_WDAT, val);
+}
+
+static inline void iwl3945_write_targ_mem_buf(struct iwl3945_priv *priv, u32 addr,
+ u32 len, u32 *values)
+{
+ iwl3945_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
+ for (; 0 < len; len -= sizeof(u32), values++)
+ iwl3945_write_direct32(priv, HBUS_TARG_MEM_WDAT, *values);
+}
+#endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index 2bffb11..adcd106 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -37,18 +37,13 @@
#include <linux/workqueue.h>
-#include <net/mac80211.h>
-#include <linux/wireless.h>
-
#include "../net/mac80211/ieee80211_rate.h"
-#include "iwl-3945-rs.h"
-#include "iwlwifi.h"
-#include "iwl-helpers.h"
+#include "iwl-3945.h"
#define RS_NAME "iwl-3945-rs"
-struct iwl_rate_scale_data {
+struct iwl3945_rate_scale_data {
u64 data;
s32 success_counter;
s32 success_ratio;
@@ -57,43 +52,44 @@ struct iwl_rate_scale_data {
unsigned long stamp;
};
-struct iwl_rate_scale_priv {
+struct iwl3945_rate_scale_priv {
spinlock_t lock;
s32 *expected_tpt;
unsigned long last_partial_flush;
unsigned long last_flush;
- u8 flush_pending;
u32 flush_time;
u32 last_tx_packets;
- u8 tgg;
u32 tx_packets;
+ u8 tgg;
+ u8 flush_pending;
u8 start_rate;
+ u8 ibss_sta_added;
struct timer_list rate_scale_flush;
- struct iwl_rate_scale_data win[IWL_RATE_COUNT];
+ struct iwl3945_rate_scale_data win[IWL_RATE_COUNT];
};
-static s32 iwl_expected_tpt_g[IWL_RATE_COUNT] = {
- 0, 0, 76, 104, 130, 168, 191, 202, 7, 13, 35, 58
+static s32 iwl3945_expected_tpt_g[IWL_RATE_COUNT] = {
+ 7, 13, 35, 58, 0, 0, 76, 104, 130, 168, 191, 202
};
-static s32 iwl_expected_tpt_g_prot[IWL_RATE_COUNT] = {
- 0, 0, 0, 80, 93, 113, 123, 125, 7, 13, 35, 58
+static s32 iwl3945_expected_tpt_g_prot[IWL_RATE_COUNT] = {
+ 7, 13, 35, 58, 0, 0, 0, 80, 93, 113, 123, 125
};
-static s32 iwl_expected_tpt_a[IWL_RATE_COUNT] = {
- 40, 57, 72, 98, 121, 154, 177, 186, 0, 0, 0, 0
+static s32 iwl3945_expected_tpt_a[IWL_RATE_COUNT] = {
+ 0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186
};
-static s32 iwl_expected_tpt_b[IWL_RATE_COUNT] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 7, 13, 35, 58
+static s32 iwl3945_expected_tpt_b[IWL_RATE_COUNT] = {
+ 7, 13, 35, 58, 0, 0, 0, 0, 0, 0, 0, 0
};
-struct iwl_tpt_entry {
+struct iwl3945_tpt_entry {
s8 min_rssi;
u8 index;
};
-static struct iwl_tpt_entry iwl_tpt_table_a[] = {
+static struct iwl3945_tpt_entry iwl3945_tpt_table_a[] = {
{-60, IWL_RATE_54M_INDEX},
{-64, IWL_RATE_48M_INDEX},
{-72, IWL_RATE_36M_INDEX},
@@ -104,7 +100,7 @@ static struct iwl_tpt_entry iwl_tpt_table_a[] = {
{-89, IWL_RATE_6M_INDEX}
};
-static struct iwl_tpt_entry iwl_tpt_table_b[] = {
+static struct iwl3945_tpt_entry iwl3945_tpt_table_b[] = {
{-86, IWL_RATE_11M_INDEX},
{-88, IWL_RATE_5M_INDEX},
{-90, IWL_RATE_2M_INDEX},
@@ -112,7 +108,7 @@ static struct iwl_tpt_entry iwl_tpt_table_b[] = {
};
-static struct iwl_tpt_entry iwl_tpt_table_g[] = {
+static struct iwl3945_tpt_entry iwl3945_tpt_table_g[] = {
{-60, IWL_RATE_54M_INDEX},
{-64, IWL_RATE_48M_INDEX},
{-68, IWL_RATE_36M_INDEX},
@@ -133,30 +129,30 @@ static struct iwl_tpt_entry iwl_tpt_table_g[] = {
#define IWL_RATE_MIN_SUCCESS_TH 8
#define IWL_RATE_DECREASE_TH 1920
-static u8 iwl_get_rate_index_by_rssi(s32 rssi, u8 mode)
+static u8 iwl3945_get_rate_index_by_rssi(s32 rssi, u8 mode)
{
u32 index = 0;
u32 table_size = 0;
- struct iwl_tpt_entry *tpt_table = NULL;
+ struct iwl3945_tpt_entry *tpt_table = NULL;
if ((rssi < IWL_MIN_RSSI_VAL) || (rssi > IWL_MAX_RSSI_VAL))
rssi = IWL_MIN_RSSI_VAL;
switch (mode) {
case MODE_IEEE80211G:
- tpt_table = iwl_tpt_table_g;
- table_size = GLOBAL_ARRAY_SIZE(iwl_tpt_table_g);
+ tpt_table = iwl3945_tpt_table_g;
+ table_size = ARRAY_SIZE(iwl3945_tpt_table_g);
break;
case MODE_IEEE80211A:
- tpt_table = iwl_tpt_table_a;
- table_size = GLOBAL_ARRAY_SIZE(iwl_tpt_table_a);
+ tpt_table = iwl3945_tpt_table_a;
+ table_size = ARRAY_SIZE(iwl3945_tpt_table_a);
break;
default:
case MODE_IEEE80211B:
- tpt_table = iwl_tpt_table_b;
- table_size = GLOBAL_ARRAY_SIZE(iwl_tpt_table_b);
+ tpt_table = iwl3945_tpt_table_b;
+ table_size = ARRAY_SIZE(iwl3945_tpt_table_b);
break;
}
@@ -168,7 +164,7 @@ static u8 iwl_get_rate_index_by_rssi(s32 rssi, u8 mode)
return tpt_table[index].index;
}
-static void iwl_clear_window(struct iwl_rate_scale_data *window)
+static void iwl3945_clear_window(struct iwl3945_rate_scale_data *window)
{
window->data = 0;
window->success_counter = 0;
@@ -179,13 +175,13 @@ static void iwl_clear_window(struct iwl_rate_scale_data *window)
}
/**
- * iwl_rate_scale_flush_windows - flush out the rate scale windows
+ * iwl3945_rate_scale_flush_windows - flush out the rate scale windows
*
* Returns the number of windows that have gathered data but were
* not flushed. If there were any that were not flushed, then
* reschedule the rate flushing routine.
*/
-static int iwl_rate_scale_flush_windows(struct iwl_rate_scale_priv *rs_priv)
+static int iwl3945_rate_scale_flush_windows(struct iwl3945_rate_scale_priv *rs_priv)
{
int unflushed = 0;
int i;
@@ -206,7 +202,7 @@ static int iwl_rate_scale_flush_windows(struct iwl_rate_scale_priv *rs_priv)
IWL_DEBUG_RATE("flushing %d samples of rate "
"index %d\n",
rs_priv->win[i].counter, i);
- iwl_clear_window(&rs_priv->win[i]);
+ iwl3945_clear_window(&rs_priv->win[i]);
} else
unflushed++;
spin_unlock_irqrestore(&rs_priv->lock, flags);
@@ -218,16 +214,16 @@ static int iwl_rate_scale_flush_windows(struct iwl_rate_scale_priv *rs_priv)
#define IWL_RATE_FLUSH_MAX 5000 /* msec */
#define IWL_RATE_FLUSH_MIN 50 /* msec */
-static void iwl_bg_rate_scale_flush(unsigned long data)
+static void iwl3945_bg_rate_scale_flush(unsigned long data)
{
- struct iwl_rate_scale_priv *rs_priv = (void *)data;
+ struct iwl3945_rate_scale_priv *rs_priv = (void *)data;
int unflushed = 0;
unsigned long flags;
u32 packet_count, duration, pps;
IWL_DEBUG_RATE("enter\n");
- unflushed = iwl_rate_scale_flush_windows(rs_priv);
+ unflushed = iwl3945_rate_scale_flush_windows(rs_priv);
spin_lock_irqsave(&rs_priv->lock, flags);
@@ -281,21 +277,20 @@ static void iwl_bg_rate_scale_flush(unsigned long data)
}
/**
- * iwl_collect_tx_data - Update the success/failure sliding window
+ * iwl3945_collect_tx_data - Update the success/failure sliding window
*
* We keep a sliding window of the last 64 packets transmitted
* at this rate. window->data contains the bitmask of successful
* packets.
*/
-static void iwl_collect_tx_data(struct iwl_rate_scale_priv *rs_priv,
- struct iwl_rate_scale_data *window,
+static void iwl3945_collect_tx_data(struct iwl3945_rate_scale_priv *rs_priv,
+ struct iwl3945_rate_scale_data *window,
int success, int retries)
{
unsigned long flags;
if (!retries) {
- IWL_DEBUG_RATE("leave: retries == 0 -- should be at "
- "least 1\n");
+ IWL_DEBUG_RATE("leave: retries == 0 -- should be at least 1\n");
return;
}
@@ -353,30 +348,37 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
sta->last_txrate = sta->txrate;
+ /* For MODE_IEEE80211A mode it start at IWL_FIRST_OFDM_RATE */
+ if (local->hw.conf.phymode == MODE_IEEE80211A)
+ sta->last_txrate += IWL_FIRST_OFDM_RATE;
+
IWL_DEBUG_RATE("leave\n");
}
static void *rs_alloc(struct ieee80211_local *local)
{
- IWL_DEBUG_RATE("enter\n");
- IWL_DEBUG_RATE("leave\n");
return local->hw.priv;
}
-static void rs_free(void *data)
+/* rate scale requires free function to be implemented */
+static void rs_free(void *priv)
{
- IWL_DEBUG_RATE("enter\n");
- IWL_DEBUG_RATE("leave\n");
+ return;
+}
+static void rs_clear(void *priv)
+{
+ return;
}
+
static void *rs_alloc_sta(void *priv, gfp_t gfp)
{
- struct iwl_rate_scale_priv *rs_priv;
+ struct iwl3945_rate_scale_priv *rs_priv;
int i;
IWL_DEBUG_RATE("enter\n");
- rs_priv = kzalloc(sizeof(struct iwl_rate_scale_priv), gfp);
+ rs_priv = kzalloc(sizeof(struct iwl3945_rate_scale_priv), gfp);
if (!rs_priv) {
IWL_DEBUG_RATE("leave: ENOMEM\n");
return NULL;
@@ -387,19 +389,20 @@ static void *rs_alloc_sta(void *priv, gfp_t gfp)
rs_priv->start_rate = IWL_RATE_INVALID;
/* default to just 802.11b */
- rs_priv->expected_tpt = iwl_expected_tpt_b;
+ rs_priv->expected_tpt = iwl3945_expected_tpt_b;
rs_priv->last_partial_flush = jiffies;
rs_priv->last_flush = jiffies;
rs_priv->flush_time = IWL_RATE_FLUSH;
rs_priv->last_tx_packets = 0;
+ rs_priv->ibss_sta_added = 0;
init_timer(&rs_priv->rate_scale_flush);
rs_priv->rate_scale_flush.data = (unsigned long)rs_priv;
- rs_priv->rate_scale_flush.function = &iwl_bg_rate_scale_flush;
+ rs_priv->rate_scale_flush.function = &iwl3945_bg_rate_scale_flush;
for (i = 0; i < IWL_RATE_COUNT; i++)
- iwl_clear_window(&rs_priv->win[i]);
+ iwl3945_clear_window(&rs_priv->win[i]);
IWL_DEBUG_RATE("leave\n");
@@ -408,7 +411,7 @@ static void *rs_alloc_sta(void *priv, gfp_t gfp)
static void rs_free_sta(void *priv, void *priv_sta)
{
- struct iwl_rate_scale_priv *rs_priv = priv_sta;
+ struct iwl3945_rate_scale_priv *rs_priv = priv_sta;
IWL_DEBUG_RATE("enter\n");
del_timer_sync(&rs_priv->rate_scale_flush);
@@ -416,15 +419,37 @@ static void rs_free_sta(void *priv, void *priv_sta)
IWL_DEBUG_RATE("leave\n");
}
-static void rs_clear(void *priv)
+
+/*
+ * get ieee prev rate from rate scale table.
+ * for A and B mode we need to overright prev
+ * value
+ */
+static int rs_adjust_next_rate(struct iwl3945_priv *priv, int rate)
{
- IWL_DEBUG_RATE("NOP\n");
-}
+ int next_rate = iwl3945_get_prev_ieee_rate(rate);
+
+ switch (priv->phymode) {
+ case MODE_IEEE80211A:
+ if (rate == IWL_RATE_12M_INDEX)
+ next_rate = IWL_RATE_9M_INDEX;
+ else if (rate == IWL_RATE_6M_INDEX)
+ next_rate = IWL_RATE_6M_INDEX;
+ break;
+ case MODE_IEEE80211B:
+ if (rate == IWL_RATE_11M_INDEX_TABLE)
+ next_rate = IWL_RATE_5M_INDEX_TABLE;
+ break;
+ default:
+ break;
+ }
+ return next_rate;
+}
/**
* rs_tx_status - Update rate control values based on Tx results
*
- * NOTE: Uses iwl_priv->retry_rate for the # of retries attempted by
+ * NOTE: Uses iwl3945_priv->retry_rate for the # of retries attempted by
* the hardware for each rate.
*/
static void rs_tx_status(void *priv_rate,
@@ -437,9 +462,9 @@ static void rs_tx_status(void *priv_rate,
unsigned long flags;
struct sta_info *sta;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct iwl_rate_scale_priv *rs_priv;
+ struct iwl3945_rate_scale_priv *rs_priv;
IWL_DEBUG_RATE("enter\n");
@@ -483,12 +508,13 @@ static void rs_tx_status(void *priv_rate,
last_index = scale_rate_index;
} else {
current_count = priv->retry_rate;
- last_index = iwl_get_prev_ieee_rate(scale_rate_index);
+ last_index = rs_adjust_next_rate(priv,
+ scale_rate_index);
}
/* Update this rate accounting for as many retries
* as was used for it (per current_count) */
- iwl_collect_tx_data(rs_priv,
+ iwl3945_collect_tx_data(rs_priv,
&rs_priv->win[scale_rate_index],
0, current_count);
IWL_DEBUG_RATE("Update rate %d for %d retries.\n",
@@ -498,15 +524,16 @@ static void rs_tx_status(void *priv_rate,
if (retries)
scale_rate_index =
- iwl_get_prev_ieee_rate(scale_rate_index);
+ rs_adjust_next_rate(priv, scale_rate_index);
}
+
/* Update the last index window with success/failure based on ACK */
IWL_DEBUG_RATE("Update rate %d with %s.\n",
last_index,
(tx_resp->flags & IEEE80211_TX_STATUS_ACK) ?
"success" : "failure");
- iwl_collect_tx_data(rs_priv,
+ iwl3945_collect_tx_data(rs_priv,
&rs_priv->win[last_index],
tx_resp->flags & IEEE80211_TX_STATUS_ACK, 1);
@@ -533,7 +560,7 @@ static void rs_tx_status(void *priv_rate,
return;
}
-static struct ieee80211_rate *iwl_get_lowest_rate(struct ieee80211_local
+static struct ieee80211_rate *iwl3945_get_lowest_rate(struct ieee80211_local
*local)
{
struct ieee80211_hw_mode *mode = local->oper_hw_mode;
@@ -549,13 +576,13 @@ static struct ieee80211_rate *iwl_get_lowest_rate(struct ieee80211_local
return &mode->rates[0];
}
-static u16 iwl_get_adjacent_rate(struct iwl_rate_scale_priv *rs_priv,
+static u16 iwl3945_get_adjacent_rate(struct iwl3945_rate_scale_priv *rs_priv,
u8 index, u16 rate_mask, int phymode)
{
u8 high = IWL_RATE_INVALID;
u8 low = IWL_RATE_INVALID;
- /* 802.11A walks to the next literal adjascent rate in
+ /* 802.11A walks to the next literal adjacent rate in
* the rate table */
if (unlikely(phymode == MODE_IEEE80211A)) {
int i;
@@ -585,9 +612,9 @@ static u16 iwl_get_adjacent_rate(struct iwl_rate_scale_priv *rs_priv,
low = index;
while (low != IWL_RATE_INVALID) {
if (rs_priv->tgg)
- low = iwl_rates[low].prev_rs_tgg;
+ low = iwl3945_rates[low].prev_rs_tgg;
else
- low = iwl_rates[low].prev_rs;
+ low = iwl3945_rates[low].prev_rs;
if (low == IWL_RATE_INVALID)
break;
if (rate_mask & (1 << low))
@@ -598,9 +625,9 @@ static u16 iwl_get_adjacent_rate(struct iwl_rate_scale_priv *rs_priv,
high = index;
while (high != IWL_RATE_INVALID) {
if (rs_priv->tgg)
- high = iwl_rates[high].next_rs_tgg;
+ high = iwl3945_rates[high].next_rs_tgg;
else
- high = iwl_rates[high].next_rs;
+ high = iwl3945_rates[high].next_rs;
if (high == IWL_RATE_INVALID)
break;
if (rate_mask & (1 << high))
@@ -636,8 +663,8 @@ static struct ieee80211_rate *rs_get_rate(void *priv_rate,
u8 high = IWL_RATE_INVALID;
u16 high_low;
int index;
- struct iwl_rate_scale_priv *rs_priv;
- struct iwl_rate_scale_data *window = NULL;
+ struct iwl3945_rate_scale_priv *rs_priv;
+ struct iwl3945_rate_scale_data *window = NULL;
int current_tpt = IWL_INVALID_VALUE;
int low_tpt = IWL_INVALID_VALUE;
int high_tpt = IWL_INVALID_VALUE;
@@ -648,7 +675,8 @@ static struct ieee80211_rate *rs_get_rate(void *priv_rate,
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct sta_info *sta;
u16 fc, rate_mask;
- struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate;
+ DECLARE_MAC_BUF(mac);
IWL_DEBUG_RATE("enter\n");
@@ -663,7 +691,7 @@ static struct ieee80211_rate *rs_get_rate(void *priv_rate,
IWL_DEBUG_RATE("leave: lowest rate (not data or is "
"multicast)\n");
- return iwl_get_lowest_rate(local);
+ return iwl3945_get_lowest_rate(local);
}
sta = sta_info_get(local, hdr->addr1);
@@ -675,10 +703,27 @@ static struct ieee80211_rate *rs_get_rate(void *priv_rate,
}
rate_mask = sta->supp_rates;
- index = min(sta->txrate & 0xffff, IWL_RATE_COUNT - 1);
+ index = min(sta->last_txrate & 0xffff, IWL_RATE_COUNT - 1);
+
+ if (priv->phymode == (u8) MODE_IEEE80211A)
+ rate_mask = rate_mask << IWL_FIRST_OFDM_RATE;
rs_priv = (void *)sta->rate_ctrl_priv;
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
+ !rs_priv->ibss_sta_added) {
+ u8 sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
+
+ if (sta_id == IWL_INVALID_STATION) {
+ IWL_DEBUG_RATE("LQ: ADD station %s\n",
+ print_mac(mac, hdr->addr1));
+ sta_id = iwl3945_add_station(priv,
+ hdr->addr1, 0, CMD_ASYNC);
+ }
+ if (sta_id != IWL_INVALID_STATION)
+ rs_priv->ibss_sta_added = 1;
+ }
+
spin_lock_irqsave(&rs_priv->lock, flags);
if (rs_priv->start_rate != IWL_RATE_INVALID) {
@@ -710,7 +755,7 @@ static struct ieee80211_rate *rs_get_rate(void *priv_rate,
rs_priv->expected_tpt[index] + 64) / 128);
current_tpt = window->average_tpt;
- high_low = iwl_get_adjacent_rate(rs_priv, index, rate_mask,
+ high_low = iwl3945_get_adjacent_rate(rs_priv, index, rate_mask,
local->hw.conf.phymode);
low = high_low & 0xff;
high = (high_low >> 8) & 0xff;
@@ -729,9 +774,9 @@ static struct ieee80211_rate *rs_get_rate(void *priv_rate,
IWL_DEBUG_RATE("decrease rate because of low success_ratio\n");
scale_action = -1;
} else if ((low_tpt == IWL_INVALID_VALUE) &&
- (high_tpt == IWL_INVALID_VALUE)) {
+ (high_tpt == IWL_INVALID_VALUE))
scale_action = 1;
- } else if ((low_tpt != IWL_INVALID_VALUE) &&
+ else if ((low_tpt != IWL_INVALID_VALUE) &&
(high_tpt != IWL_INVALID_VALUE)
&& (low_tpt < current_tpt)
&& (high_tpt < current_tpt)) {
@@ -790,7 +835,11 @@ static struct ieee80211_rate *rs_get_rate(void *priv_rate,
out:
sta->last_txrate = index;
- sta->txrate = sta->last_txrate;
+ if (priv->phymode == (u8) MODE_IEEE80211A)
+ sta->txrate = sta->last_txrate - IWL_FIRST_OFDM_RATE;
+ else
+ sta->txrate = sta->last_txrate;
+
sta_info_put(sta);
IWL_DEBUG_RATE("leave: %d\n", index);
@@ -811,11 +860,11 @@ static struct rate_control_ops rs_ops = {
.free_sta = rs_free_sta,
};
-int iwl_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
+int iwl3945_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
{
struct ieee80211_local *local = hw_to_local(hw);
- struct iwl_priv *priv = hw->priv;
- struct iwl_rate_scale_priv *rs_priv;
+ struct iwl3945_priv *priv = hw->priv;
+ struct iwl3945_rate_scale_priv *rs_priv;
struct sta_info *sta;
unsigned long flags;
int count = 0, i;
@@ -841,7 +890,7 @@ int iwl_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
int j;
count +=
- sprintf(&buf[count], " %2dMbs: ", iwl_rates[i].ieee / 2);
+ sprintf(&buf[count], " %2dMbs: ", iwl3945_rates[i].ieee / 2);
mask = (1ULL << (IWL_RATE_MAX_WINDOW - 1));
for (j = 0; j < IWL_RATE_MAX_WINDOW; j++, mask >>= 1)
@@ -850,7 +899,7 @@ int iwl_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
samples += rs_priv->win[i].counter;
good += rs_priv->win[i].success_counter;
- success += rs_priv->win[i].success_counter * iwl_rates[i].ieee;
+ success += rs_priv->win[i].success_counter * iwl3945_rates[i].ieee;
if (rs_priv->win[i].stamp) {
int delta =
@@ -863,7 +912,7 @@ int iwl_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
} else
buf[count++] = '\n';
- j = iwl_get_prev_ieee_rate(i);
+ j = iwl3945_get_prev_ieee_rate(i);
if (j == i)
break;
i = j;
@@ -874,7 +923,7 @@ int iwl_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
/* Display the average rate of all samples taken.
*
* NOTE: We multiple # of samples by 2 since the IEEE measurement
- * added from iwl_rates is actually 2X the rate */
+ * added from iwl3945_rates is actually 2X the rate */
if (samples)
count += sprintf(
&buf[count],
@@ -888,21 +937,20 @@ int iwl_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
return count;
}
-void iwl_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
+void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
{
- struct iwl_priv *priv = hw->priv;
+ struct iwl3945_priv *priv = hw->priv;
s32 rssi = 0;
unsigned long flags;
struct ieee80211_local *local = hw_to_local(hw);
- struct iwl_rate_scale_priv *rs_priv;
+ struct iwl3945_rate_scale_priv *rs_priv;
struct sta_info *sta;
IWL_DEBUG_RATE("enter\n");
if (!local->rate_ctrl->ops->name ||
strcmp(local->rate_ctrl->ops->name, RS_NAME)) {
- IWL_WARNING("iwl-3945-rs not selected as rate control "
- "aglo!\n");
+ IWL_WARNING("iwl-3945-rs not selected as rate control algo!\n");
IWL_DEBUG_RATE("leave - mac80211 picked the wrong RC algo.\n");
return;
}
@@ -924,19 +972,19 @@ void iwl_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
case MODE_IEEE80211G:
if (priv->active_rxon.flags & RXON_FLG_TGG_PROTECT_MSK) {
rs_priv->tgg = 1;
- rs_priv->expected_tpt = iwl_expected_tpt_g_prot;
+ rs_priv->expected_tpt = iwl3945_expected_tpt_g_prot;
} else
- rs_priv->expected_tpt = iwl_expected_tpt_g;
+ rs_priv->expected_tpt = iwl3945_expected_tpt_g;
break;
case MODE_IEEE80211A:
- rs_priv->expected_tpt = iwl_expected_tpt_a;
+ rs_priv->expected_tpt = iwl3945_expected_tpt_a;
break;
default:
IWL_WARNING("Invalid phymode. Defaulting to 802.11b\n");
case MODE_IEEE80211B:
- rs_priv->expected_tpt = iwl_expected_tpt_b;
+ rs_priv->expected_tpt = iwl3945_expected_tpt_b;
break;
}
@@ -949,19 +997,19 @@ void iwl_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
IWL_DEBUG(IWL_DL_INFO | IWL_DL_RATE, "Network RSSI: %d\n", rssi);
- rs_priv->start_rate = iwl_get_rate_index_by_rssi(rssi, priv->phymode);
+ rs_priv->start_rate = iwl3945_get_rate_index_by_rssi(rssi, priv->phymode);
IWL_DEBUG_RATE("leave: rssi %d assign rate index: "
"%d (plcp 0x%x)\n", rssi, rs_priv->start_rate,
- iwl_rates[rs_priv->start_rate].plcp);
+ iwl3945_rates[rs_priv->start_rate].plcp);
}
-void iwl_rate_control_register(void)
+void iwl3945_rate_control_register(struct ieee80211_hw *hw)
{
ieee80211_rate_control_register(&rs_ops);
}
-void iwl_rate_control_unregister(void)
+void iwl3945_rate_control_unregister(struct ieee80211_hw *hw)
{
ieee80211_rate_control_unregister(&rs_ops);
}
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.h b/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
index 25bdbcb..e21a5ba 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
@@ -27,19 +27,29 @@
#ifndef __iwl_3945_rs_h__
#define __iwl_3945_rs_h__
-struct iwl_rate_info {
- u8 plcp;
- u8 ieee;
+struct iwl3945_rate_info {
+ u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
+ u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
u8 prev_ieee; /* previous rate in IEEE speeds */
u8 next_ieee; /* next rate in IEEE speeds */
u8 prev_rs; /* previous rate used in rs algo */
u8 next_rs; /* next rate used in rs algo */
u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
u8 next_rs_tgg; /* next rate used in TGG rs algo */
+ u8 table_rs_index; /* index in rate scale table cmd */
+ u8 prev_table_rs; /* prev in rate table cmd */
};
+/*
+ * These serve as indexes into
+ * struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT];
+ */
enum {
- IWL_RATE_6M_INDEX = 0,
+ IWL_RATE_1M_INDEX = 0,
+ IWL_RATE_2M_INDEX,
+ IWL_RATE_5M_INDEX,
+ IWL_RATE_11M_INDEX,
+ IWL_RATE_6M_INDEX,
IWL_RATE_9M_INDEX,
IWL_RATE_12M_INDEX,
IWL_RATE_18M_INDEX,
@@ -47,16 +57,28 @@ enum {
IWL_RATE_36M_INDEX,
IWL_RATE_48M_INDEX,
IWL_RATE_54M_INDEX,
- IWL_RATE_1M_INDEX,
- IWL_RATE_2M_INDEX,
- IWL_RATE_5M_INDEX,
- IWL_RATE_11M_INDEX,
IWL_RATE_COUNT,
IWL_RATE_INVM_INDEX,
IWL_RATE_INVALID = IWL_RATE_INVM_INDEX
};
enum {
+ IWL_RATE_6M_INDEX_TABLE = 0,
+ IWL_RATE_9M_INDEX_TABLE,
+ IWL_RATE_12M_INDEX_TABLE,
+ IWL_RATE_18M_INDEX_TABLE,
+ IWL_RATE_24M_INDEX_TABLE,
+ IWL_RATE_36M_INDEX_TABLE,
+ IWL_RATE_48M_INDEX_TABLE,
+ IWL_RATE_54M_INDEX_TABLE,
+ IWL_RATE_1M_INDEX_TABLE,
+ IWL_RATE_2M_INDEX_TABLE,
+ IWL_RATE_5M_INDEX_TABLE,
+ IWL_RATE_11M_INDEX_TABLE,
+ IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX,
+};
+
+enum {
IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
IWL_LAST_OFDM_RATE = IWL_RATE_54M_INDEX,
IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
@@ -77,6 +99,7 @@ enum {
#define IWL_RATE_5M_MASK (1<<IWL_RATE_5M_INDEX)
#define IWL_RATE_11M_MASK (1<<IWL_RATE_11M_INDEX)
+/* 3945 uCode API values for (legacy) bit rates, both OFDM and CCK */
enum {
IWL_RATE_6M_PLCP = 13,
IWL_RATE_9M_PLCP = 15,
@@ -92,6 +115,7 @@ enum {
IWL_RATE_11M_PLCP = 110,
};
+/* MAC header values for bit rates */
enum {
IWL_RATE_6M_IEEE = 12,
IWL_RATE_9M_IEEE = 18,
@@ -140,82 +164,52 @@ enum {
#define IWL_MIN_RSSI_VAL -100
#define IWL_MAX_RSSI_VAL 0
-extern const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT];
-
-static inline int iwl_rate_index_from_plcp(int plcp)
-{
- int i = 0;
- for (i = 0; i < IWL_RATE_COUNT; i++)
- if (iwl_rates[i].plcp == plcp)
- return i;
- return -1;
-}
+extern const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT];
-static inline u8 iwl_rate_get_lowest_plcp(int rate_mask)
+static inline u8 iwl3945_get_prev_ieee_rate(u8 rate_index)
{
- u8 i;
+ u8 rate = iwl3945_rates[rate_index].prev_ieee;
- for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
- i = iwl_rates[i].next_ieee) {
- if (rate_mask & (1 << i))
- return iwl_rates[i].plcp;
- }
-
- return IWL_RATE_INVALID;
-}
-
-static inline u8 iwl_get_prev_ieee_rate(u8 rate_index)
-{
- u8 rate = iwl_rates[rate_index].prev_ieee;
if (rate == IWL_RATE_INVALID)
rate = rate_index;
return rate;
}
-#if IWL == 3945
/**
- * iwl_fill_rs_info - Fill an output text buffer with the rate representation
+ * iwl3945_fill_rs_info - Fill an output text buffer with the rate representation
*
* NOTE: This is provided as a quick mechanism for a user to visualize
- * the performance of the rate control alogirthm and is not meant to be
+ * the performance of the rate control algorithm and is not meant to be
* parsed software.
*/
-extern int iwl_fill_rs_info(struct ieee80211_hw *, char *buf, u8 sta_id);
+extern int iwl3945_fill_rs_info(struct ieee80211_hw *, char *buf, u8 sta_id);
/**
- * iwl_rate_scale_init - Initialize the rate scale table based on assoc info
+ * iwl3945_rate_scale_init - Initialize the rate scale table based on assoc info
*
- * The specific througput table used is based on the type of network
+ * The specific throughput table used is based on the type of network
* the associated with, including A, B, G, and G w/ TGG protection
*/
-extern void iwl_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
+extern void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
/**
- * iwl_rate_control_register - Register the rate control algorithm callbacks
+ * iwl3945_rate_control_register - Register the rate control algorithm callbacks
*
* Since the rate control algorithm is hardware specific, there is no need
* or reason to place it as a stand alone module. The driver can call
- * iwl_rate_control_register in order to register the rate control callbacks
+ * iwl3945_rate_control_register in order to register the rate control callbacks
* with the mac80211 subsystem. This should be performed prior to calling
* ieee80211_register_hw
*
*/
-extern void iwl_rate_control_register(void);
+extern void iwl3945_rate_control_register(struct ieee80211_hw *hw);
/**
- * iwl_rate_control_unregister - Unregister the rate control callbacks
+ * iwl3945_rate_control_unregister - Unregister the rate control callbacks
*
* This should be called after calling ieee80211_unregister_hw, but before
* the driver is unloaded.
*/
-extern void iwl_rate_control_unregister(void);
-#else
-static inline int iwl_fill_rs_info(struct ieee80211_hw *hw, char *buf,
- u8 sta_id)
-{ return -ENOTSUPP; }
-static inline void iwl_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id) {}
-static inline void iwl_rate_control_register(void) {}
-static inline void iwl_rate_control_unregister(void) {}
-#endif /* IWL == 3945 */
+extern void iwl3945_rate_control_unregister(struct ieee80211_hw *hw);
#endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 4325ff0..53e7927 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -38,11 +38,9 @@
#include <net/mac80211.h>
#include <linux/etherdevice.h>
-#include <linux/delay.h>
-#include "iwlwifi.h"
-#include "iwl-helpers.h"
#include "iwl-3945.h"
+#include "iwl-helpers.h"
#include "iwl-3945-rs.h"
#define IWL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \
@@ -53,7 +51,9 @@
IWL_RATE_##rp##M_INDEX, \
IWL_RATE_##rn##M_INDEX, \
IWL_RATE_##pp##M_INDEX, \
- IWL_RATE_##np##M_INDEX }
+ IWL_RATE_##np##M_INDEX, \
+ IWL_RATE_##r##M_INDEX_TABLE, \
+ IWL_RATE_##ip##M_INDEX_TABLE }
/*
* Parameter order:
@@ -63,7 +63,11 @@
* maps to IWL_RATE_INVALID
*
*/
-const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
+const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT] = {
+ IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */
+ IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */
+ IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */
+ IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */
IWL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11), /* 6mbps */
IWL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11), /* 9mbps */
IWL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18), /* 12mbps */
@@ -72,18 +76,14 @@ const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
IWL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48), /* 36mbps */
IWL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54), /* 48mbps */
IWL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV),/* 54mbps */
- IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */
- IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */
- IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */
- IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */
};
-/* 1 = enable the iwl_disable_events() function */
+/* 1 = enable the iwl3945_disable_events() function */
#define IWL_EVT_DISABLE (0)
#define IWL_EVT_DISABLE_SIZE (1532/32)
/**
- * iwl_disable_events - Disable selected events in uCode event log
+ * iwl3945_disable_events - Disable selected events in uCode event log
*
* Disable an event by writing "1"s into "disable"
* bitmap in SRAM. Bit position corresponds to Event # (id/type).
@@ -91,9 +91,9 @@ const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
* Use for only special debugging. This function is just a placeholder as-is,
* you'll need to provide the special bits! ...
* ... and set IWL_EVT_DISABLE to 1. */
-void iwl_disable_events(struct iwl_priv *priv)
+void iwl3945_disable_events(struct iwl3945_priv *priv)
{
- int rc;
+ int ret;
int i;
u32 base; /* SRAM address of event log header */
u32 disable_ptr; /* SRAM address of event-disable bitmap array */
@@ -148,33 +148,32 @@ void iwl_disable_events(struct iwl_priv *priv)
0x00000000, /* 1503 - 1472 */
};
- base = priv->card_alive.log_event_table_ptr;
- if (!VALID_RTC_DATA_ADDR(base)) {
+ base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+ if (!iwl3945_hw_valid_rtc_data_addr(base)) {
IWL_ERROR("Invalid event log pointer 0x%08X\n", base);
return;
}
- rc = iwl_grab_restricted_access(priv);
- if (rc) {
+ ret = iwl3945_grab_nic_access(priv);
+ if (ret) {
IWL_WARNING("Can not read from adapter at this time.\n");
return;
}
- disable_ptr = iwl_read_restricted_mem(priv, base + (4 * sizeof(u32)));
- array_size = iwl_read_restricted_mem(priv, base + (5 * sizeof(u32)));
- iwl_release_restricted_access(priv);
+ disable_ptr = iwl3945_read_targ_mem(priv, base + (4 * sizeof(u32)));
+ array_size = iwl3945_read_targ_mem(priv, base + (5 * sizeof(u32)));
+ iwl3945_release_nic_access(priv);
if (IWL_EVT_DISABLE && (array_size == IWL_EVT_DISABLE_SIZE)) {
IWL_DEBUG_INFO("Disabling selected uCode log events at 0x%x\n",
disable_ptr);
- rc = iwl_grab_restricted_access(priv);
- for (i = 0; i < IWL_EVT_DISABLE_SIZE; i++) {
- iwl_write_restricted_mem(priv,
- disable_ptr +
- (i * sizeof(u32)),
- evt_disable[i]);
- }
- iwl_release_restricted_access(priv);
+ ret = iwl3945_grab_nic_access(priv);
+ for (i = 0; i < IWL_EVT_DISABLE_SIZE; i++)
+ iwl3945_write_targ_mem(priv,
+ disable_ptr + (i * sizeof(u32)),
+ evt_disable[i]);
+
+ iwl3945_release_nic_access(priv);
} else {
IWL_DEBUG_INFO("Selected uCode log events may be disabled\n");
IWL_DEBUG_INFO(" by writing \"1\"s into disable bitmap\n");
@@ -195,7 +194,7 @@ void iwl_disable_events(struct iwl_priv *priv)
* IWL_ANTENNA_MAIN - Force MAIN antenna
* IWL_ANTENNA_AUX - Force AUX antenna
*/
-int iwl3945_get_antenna_flags(const struct iwl_priv *priv)
+__le32 iwl3945_get_antenna_flags(const struct iwl3945_priv *priv)
{
switch (priv->antenna) {
case IWL_ANTENNA_DIVERSITY:
@@ -223,15 +222,15 @@ int iwl3945_get_antenna_flags(const struct iwl_priv *priv)
*
* RX handler implementations
*
- * Used by base.c
+ * Used by iwl-base.c
*
*****************************************************************************/
-void iwl_hw_rx_statistics(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
+void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv, struct iwl3945_rx_mem_buffer *rxb)
{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
IWL_DEBUG_RX("Statistics notification received (%d vs %d).\n",
- (int)sizeof(struct iwl_notif_statistics),
+ (int)sizeof(struct iwl3945_notif_statistics),
le32_to_cpu(pkt->len));
memcpy(&priv->statistics, pkt->u.raw, sizeof(priv->statistics));
@@ -239,15 +238,15 @@ void iwl_hw_rx_statistics(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
priv->last_statistics_time = jiffies;
}
-static void iwl3945_handle_data_packet(struct iwl_priv *priv, int is_data,
- struct iwl_rx_mem_buffer *rxb,
+static void iwl3945_handle_data_packet(struct iwl3945_priv *priv, int is_data,
+ struct iwl3945_rx_mem_buffer *rxb,
struct ieee80211_rx_status *stats,
u16 phy_flags)
{
struct ieee80211_hdr *hdr;
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
- struct iwl_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
- struct iwl_rx_frame_end *rx_end = IWL_RX_END(pkt);
+ struct iwl3945_rx_packet *pkt = (struct iwl3945_rx_packet *)rxb->skb->data;
+ struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
+ struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
short len = le16_to_cpu(rx_hdr->len);
/* We received data from the HW, so stop the watchdog */
@@ -258,16 +257,16 @@ static void iwl3945_handle_data_packet(struct iwl_priv *priv, int is_data,
/* We only process data packets if the interface is open */
if (unlikely(!priv->is_open)) {
- IWL_DEBUG_DROP
+ IWL_DEBUG_DROP_LIMIT
("Dropping packet while interface is not open.\n");
return;
}
if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
- if (param_hwcrypto)
- iwl_set_decrypted_flag(priv, rxb->skb,
+ if (iwl3945_param_hwcrypto)
+ iwl3945_set_decrypted_flag(priv, rxb->skb,
le32_to_cpu(rx_end->status),
stats);
- iwl_handle_data_packet_monitor(priv, rxb, IWL_RX_DATA(pkt),
+ iwl3945_handle_data_packet_monitor(priv, rxb, IWL_RX_DATA(pkt),
len, stats, phy_flags);
return;
}
@@ -278,25 +277,29 @@ static void iwl3945_handle_data_packet(struct iwl_priv *priv, int is_data,
hdr = (void *)rxb->skb->data;
- if (param_hwcrypto)
- iwl_set_decrypted_flag(priv, rxb->skb,
+ if (iwl3945_param_hwcrypto)
+ iwl3945_set_decrypted_flag(priv, rxb->skb,
le32_to_cpu(rx_end->status), stats);
ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats);
rxb->skb = NULL;
}
-static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
+#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
+
+static void iwl3945_rx_reply_rx(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
- struct iwl_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
- struct iwl_rx_frame_end *rx_end = IWL_RX_END(pkt);
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl3945_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
+ struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
+ struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
struct ieee80211_hdr *header;
u16 phy_flags = le16_to_cpu(rx_hdr->phy_flags);
+ u16 rx_stats_sig_avg = le16_to_cpu(rx_stats->sig_avg);
+ u16 rx_stats_noise_diff = le16_to_cpu(rx_stats->noise_diff);
struct ieee80211_rx_status stats = {
- .mactime = le32_to_cpu(rx_end->beacon_timestamp),
+ .mactime = le64_to_cpu(rx_end->timestamp),
.freq = ieee80211chan2mhz(le16_to_cpu(rx_hdr->channel)),
.channel = le16_to_cpu(rx_hdr->channel),
.phymode = (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
@@ -305,7 +308,6 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
.rate = rx_hdr->rate,
.flag = 0,
};
-
u8 network_packet;
int snr;
@@ -316,9 +318,8 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
return;
}
- if (!(le32_to_cpu(rx_end->status) & RX_RES_STATUS_NO_CRC32_ERROR)
- || !(le32_to_cpu(rx_end->status) &
- RX_RES_STATUS_NO_RXE_OVERFLOW)) {
+ if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR)
+ || !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
IWL_DEBUG_RX("Bad CRC or FIFO: 0x%08X.\n", rx_end->status);
return;
}
@@ -331,12 +332,9 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
/* Convert 3945's rssi indicator to dBm */
stats.ssi = rx_stats->rssi - IWL_RSSI_OFFSET;
- /* Set default noise value to -127 ... this works better than 0 when
- * averaging frames with/without noise info; measured values are
- * always negative ... using a negative value as the default value
- * keeps all averages within an s8's range of negative values. */
+ /* Set default noise value to -127 */
if (priv->last_rx_noise == 0)
- priv->last_rx_noise = -127;
+ priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
/* 3945 provides noise info for OFDM frames only.
* sig_avg and noise_diff are measured by the 3945's digital signal
@@ -349,43 +347,43 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
* Convert linear SNR to dB SNR, then subtract that from rssi dBm
* to obtain noise level in dBm.
* Calculate stats.signal (quality indicator in %) based on SNR. */
- if (rx_stats->noise_diff) {
- snr = rx_stats->sig_avg / rx_stats->noise_diff;
- stats.noise = stats.ssi - iwl_calc_db_from_ratio(snr);
- stats.signal = iwl_calc_sig_qual(stats.ssi, stats.noise);
+ if (rx_stats_noise_diff) {
+ snr = rx_stats_sig_avg / rx_stats_noise_diff;
+ stats.noise = stats.ssi - iwl3945_calc_db_from_ratio(snr);
+ stats.signal = iwl3945_calc_sig_qual(stats.ssi, stats.noise);
/* If noise info not available, calculate signal quality indicator (%)
* using just the dBm signal level. */
} else {
stats.noise = priv->last_rx_noise;
- stats.signal = iwl_calc_sig_qual(stats.ssi, 0);
+ stats.signal = iwl3945_calc_sig_qual(stats.ssi, 0);
}
IWL_DEBUG_STATS("Rssi %d noise %d qual %d sig_avg %d noise_diff %d\n",
stats.ssi, stats.noise, stats.signal,
- rx_stats->sig_avg, rx_stats->noise_diff);
+ rx_stats_sig_avg, rx_stats_noise_diff);
stats.freq = ieee80211chan2mhz(stats.channel);
- /* can be covered by iwl_report_frame() in most cases */
+ /* can be covered by iwl3945_report_frame() in most cases */
/* IWL_DEBUG_RX("RX status: 0x%08X\n", rx_end->status); */
header = (struct ieee80211_hdr *)IWL_RX_DATA(pkt);
- network_packet = iwl_is_network_packet(priv, header);
+ network_packet = iwl3945_is_network_packet(priv, header);
-#ifdef CONFIG_IWLWIFI_DEBUG
- if (iwl_debug_level & IWL_DL_STATS && net_ratelimit())
+#ifdef CONFIG_IWL3945_DEBUG
+ if (iwl3945_debug_level & IWL_DL_STATS && net_ratelimit())
IWL_DEBUG_STATS
("[%c] %d RSSI: %d Signal: %u, Noise: %u, Rate: %u\n",
network_packet ? '*' : ' ',
stats.channel, stats.ssi, stats.ssi,
stats.ssi, stats.rate);
- if (iwl_debug_level & (IWL_DL_RX))
+ if (iwl3945_debug_level & (IWL_DL_RX))
/* Set "1" to report good data frames in groups of 100 */
- iwl_report_frame(priv, pkt, header, 1);
+ iwl3945_report_frame(priv, pkt, header, 1);
#endif
if (network_packet) {
@@ -395,9 +393,10 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
priv->last_rx_noise = stats.noise;
}
- switch (WLAN_FC_GET_TYPE(le16_to_cpu(header->frame_control))) {
+ switch (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FTYPE) {
case IEEE80211_FTYPE_MGMT:
- switch (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_control))) {
+ switch (le16_to_cpu(header->frame_control) &
+ IEEE80211_FCTL_STYPE) {
case IEEE80211_STYPE_PROBE_RESP:
case IEEE80211_STYPE_BEACON:{
/* If this is a beacon or probe response for
@@ -415,7 +414,7 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
pos =
(__le32 *) & mgmt->u.beacon.
timestamp;
- priv->timestamp0 = le64_to_cpu(pos[0]);
+ priv->timestamp0 = le32_to_cpu(pos[0]);
priv->timestamp1 = le32_to_cpu(pos[1]);
priv->beacon_int = le16_to_cpu(
mgmt->u.beacon.beacon_int);
@@ -445,6 +444,13 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
case IEEE80211_STYPE_REASSOC_RESP:{
struct ieee80211_mgmt *mgnt =
(struct ieee80211_mgmt *)header;
+
+ /* We have just associated, give some
+ * time for the 4-way handshake if
+ * any. Don't start scan too early. */
+ priv->next_scan_jiffies = jiffies +
+ IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
+
priv->assoc_id = (~((1 << 15) | (1 << 14)) &
le16_to_cpu(mgnt->u.
assoc_resp.aid));
@@ -459,13 +465,16 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
}
case IEEE80211_STYPE_PROBE_REQ:{
+ DECLARE_MAC_BUF(mac1);
+ DECLARE_MAC_BUF(mac2);
+ DECLARE_MAC_BUF(mac3);
if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
IWL_DEBUG_DROP
- ("Dropping (non network): " MAC_FMT
- ", " MAC_FMT ", " MAC_FMT "\n",
- MAC_ARG(header->addr1),
- MAC_ARG(header->addr2),
- MAC_ARG(header->addr3));
+ ("Dropping (non network): %s"
+ ", %s, %s\n",
+ print_mac(mac1, header->addr1),
+ print_mac(mac2, header->addr2),
+ print_mac(mac3, header->addr3));
return;
}
}
@@ -476,26 +485,30 @@ static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
case IEEE80211_FTYPE_CTL:
break;
- case IEEE80211_FTYPE_DATA:
- if (unlikely(is_duplicate_packet(priv, header)))
- IWL_DEBUG_DROP("Dropping (dup): " MAC_FMT ", "
- MAC_FMT ", " MAC_FMT "\n",
- MAC_ARG(header->addr1),
- MAC_ARG(header->addr2),
- MAC_ARG(header->addr3));
+ case IEEE80211_FTYPE_DATA: {
+ DECLARE_MAC_BUF(mac1);
+ DECLARE_MAC_BUF(mac2);
+ DECLARE_MAC_BUF(mac3);
+
+ if (unlikely(iwl3945_is_duplicate_packet(priv, header)))
+ IWL_DEBUG_DROP("Dropping (dup): %s, %s, %s\n",
+ print_mac(mac1, header->addr1),
+ print_mac(mac2, header->addr2),
+ print_mac(mac3, header->addr3));
else
iwl3945_handle_data_packet(priv, 1, rxb, &stats,
phy_flags);
break;
}
+ }
}
-int iwl_hw_tx_queue_attach_buffer_to_tfd(struct iwl_priv *priv,
- void *ptr, dma_addr_t addr, u16 len)
+int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *ptr,
+ dma_addr_t addr, u16 len)
{
int count;
u32 pad;
- struct iwl_tfd_frame *tfd = (struct iwl_tfd_frame *)ptr;
+ struct iwl3945_tfd_frame *tfd = (struct iwl3945_tfd_frame *)ptr;
count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
pad = TFD_CTL_PAD_GET(le32_to_cpu(tfd->control_flags));
@@ -518,14 +531,14 @@ int iwl_hw_tx_queue_attach_buffer_to_tfd(struct iwl_priv *priv,
}
/**
- * iwl_hw_tx_queue_free_tfd - Free one TFD, those at index [txq->q.last_used]
+ * iwl3945_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr]
*
* Does NOT advance any indexes
*/
-int iwl_hw_tx_queue_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
+int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq)
{
- struct iwl_tfd_frame *bd_tmp = (struct iwl_tfd_frame *)&txq->bd[0];
- struct iwl_tfd_frame *bd = &bd_tmp[txq->q.last_used];
+ struct iwl3945_tfd_frame *bd_tmp = (struct iwl3945_tfd_frame *)&txq->bd[0];
+ struct iwl3945_tfd_frame *bd = &bd_tmp[txq->q.read_ptr];
struct pci_dev *dev = priv->pci_dev;
int i;
int counter;
@@ -548,46 +561,47 @@ int iwl_hw_tx_queue_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
for (i = 1; i < counter; i++) {
pci_unmap_single(dev, le32_to_cpu(bd->pa[i].addr),
le32_to_cpu(bd->pa[i].len), PCI_DMA_TODEVICE);
- if (txq->txb[txq->q.last_used].skb[0]) {
- struct sk_buff *skb = txq->txb[txq->q.last_used].skb[0];
- if (txq->txb[txq->q.last_used].skb[0]) {
+ if (txq->txb[txq->q.read_ptr].skb[0]) {
+ struct sk_buff *skb = txq->txb[txq->q.read_ptr].skb[0];
+ if (txq->txb[txq->q.read_ptr].skb[0]) {
/* Can be called from interrupt context */
dev_kfree_skb_any(skb);
- txq->txb[txq->q.last_used].skb[0] = NULL;
+ txq->txb[txq->q.read_ptr].skb[0] = NULL;
}
}
}
return 0;
}
-u8 iwl_hw_find_station(struct iwl_priv * priv, const u8 * bssid)
+u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *addr)
{
int i;
int ret = IWL_INVALID_STATION;
unsigned long flags;
+ DECLARE_MAC_BUF(mac);
spin_lock_irqsave(&priv->sta_lock, flags);
- for (i = IWL_STA_ID; i < (IWL_STA_ID + priv->num_stations); i++)
+ for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++)
if ((priv->stations[i].used) &&
(!compare_ether_addr
- (priv->stations[i].sta.sta.addr, bssid))) {
+ (priv->stations[i].sta.sta.addr, addr))) {
ret = i;
goto out;
}
- IWL_DEBUG_INFO("can not find STA " MAC_FMT " (total %d)\n",
- MAC_ARG(bssid), priv->num_stations);
+ IWL_DEBUG_INFO("can not find STA %s (total %d)\n",
+ print_mac(mac, addr), priv->num_stations);
out:
spin_unlock_irqrestore(&priv->sta_lock, flags);
return ret;
}
/**
- * iwl_hw_build_tx_cmd_rate - Add rate portion to TX_CMD
+ * iwl3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD:
*
*/
-void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
- struct iwl_cmd *cmd,
+void iwl3945_hw_build_tx_cmd_rate(struct iwl3945_priv *priv,
+ struct iwl3945_cmd *cmd,
struct ieee80211_tx_control *ctrl,
struct ieee80211_hdr *hdr, int sta_id, int tx_id)
{
@@ -597,10 +611,10 @@ void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
int rate;
u8 rts_retry_limit;
u8 data_retry_limit;
- u32 tx_flags;
+ __le32 tx_flags;
u16 fc = le16_to_cpu(hdr->frame_control);
- rate = iwl_rates[rate_index].plcp;
+ rate = iwl3945_rates[rate_index].plcp;
tx_flags = cmd->cmd.tx.tx_flags;
/* We need to figure out how to get the sta->supp_rates while
@@ -612,7 +626,8 @@ void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
priv->stations[sta_id].current_rate.rate_n_flags = rate;
if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
- (sta_id != IWL_BROADCAST_ID) && (sta_id != IWL_MULTICAST_ID))
+ (sta_id != IWL3945_BROADCAST_ID) &&
+ (sta_id != IWL_MULTICAST_ID))
priv->stations[IWL_STA_ID].current_rate.rate_n_flags = rate;
spin_unlock_irqrestore(&priv->sta_lock, flags);
@@ -632,8 +647,8 @@ void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
if (priv->data_retry_limit != -1)
data_retry_limit = priv->data_retry_limit;
- if (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) {
- switch (WLAN_FC_GET_STYPE(fc)) {
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
+ switch (fc & IEEE80211_FCTL_STYPE) {
case IEEE80211_STYPE_AUTH:
case IEEE80211_STYPE_DEAUTH:
case IEEE80211_STYPE_ASSOC_REQ:
@@ -654,41 +669,49 @@ void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
cmd->cmd.tx.tx_flags = tx_flags;
/* OFDM */
- cmd->cmd.tx.supp_rates[0] = rate_mask & IWL_OFDM_RATES_MASK;
+ cmd->cmd.tx.supp_rates[0] =
+ ((rate_mask & IWL_OFDM_RATES_MASK) >> IWL_FIRST_OFDM_RATE) & 0xFF;
/* CCK */
- cmd->cmd.tx.supp_rates[1] = (rate_mask >> 8) & 0xF;
+ cmd->cmd.tx.supp_rates[1] = (rate_mask & 0xF);
- IWL_DEBUG_RATE("Tx sta id: %d, rate: %d (plcp), flags: " BIT_FMT16 " "
- "cck/ofdm mask: 0x%x/0x%x\n",
- sta_id,
- cmd->cmd.tx.rate,
- BIT_ARG16(cmd->cmd.tx.tx_flags),
+ IWL_DEBUG_RATE("Tx sta id: %d, rate: %d (plcp), flags: 0x%4X "
+ "cck/ofdm mask: 0x%x/0x%x\n", sta_id,
+ cmd->cmd.tx.rate, le32_to_cpu(cmd->cmd.tx.tx_flags),
cmd->cmd.tx.supp_rates[1], cmd->cmd.tx.supp_rates[0]);
}
-void iwl_hw_card_show_info(struct iwl_priv *priv)
+u8 iwl3945_sync_sta(struct iwl3945_priv *priv, int sta_id, u16 tx_rate, u8 flags)
{
- IWL_DEBUG_INFO("3945ABG HW Version %u.%u.%u\n",
- ((priv->eeprom.board_revision >> 8) & 0x0F),
- ((priv->eeprom.board_revision >> 8) >> 4),
- (priv->eeprom.board_revision & 0x00FF));
+ unsigned long flags_spin;
+ struct iwl3945_station_entry *station;
+
+ if (sta_id == IWL_INVALID_STATION)
+ return IWL_INVALID_STATION;
+
+ spin_lock_irqsave(&priv->sta_lock, flags_spin);
+ station = &priv->stations[sta_id];
- IWL_DEBUG_INFO("3945ABG PBA Number %.*s\n",
- (int)sizeof(priv->eeprom.board_pba_number),
- priv->eeprom.board_pba_number);
+ station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK;
+ station->sta.rate_n_flags = cpu_to_le16(tx_rate);
+ station->current_rate.rate_n_flags = tx_rate;
+ station->sta.mode = STA_CONTROL_MODIFY_MSK;
- IWL_DEBUG_INFO("EEPROM_ANTENNA_SWITCH_TYPE is 0x%02X\n",
- priv->eeprom.antenna_switch_type);
+ spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+
+ iwl3945_send_add_station(priv, &station->sta, flags);
+ IWL_DEBUG_RATE("SCALE sync station %d to rate %d\n",
+ sta_id, tx_rate);
+ return sta_id;
}
-static int iwl3945_nic_set_pwr_src(struct iwl_priv *priv, int pwr_max)
+static int iwl3945_nic_set_pwr_src(struct iwl3945_priv *priv, int pwr_max)
{
int rc;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl3945_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
@@ -696,28 +719,27 @@ static int iwl3945_nic_set_pwr_src(struct iwl_priv *priv, int pwr_max)
if (!pwr_max) {
u32 val;
- rc = pci_read_config_dword(priv->pci_dev, 0x0C8, &val);
+
+ rc = pci_read_config_dword(priv->pci_dev,
+ PCI_POWER_SOURCE, &val);
if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT) {
- iwl_set_bits_mask_restricted_reg(
- priv, ALM_APMG_PS_CTL,
- APMG_PS_CTRL_REG_VAL_POWER_SRC_VAUX,
- ~APMG_PS_CTRL_REG_MSK_POWER_SRC);
- iwl_release_restricted_access(priv);
+ iwl3945_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
+ ~APMG_PS_CTRL_MSK_PWR_SRC);
+ iwl3945_release_nic_access(priv);
- iwl_poll_bit(priv, CSR_GPIO_IN,
+ iwl3945_poll_bit(priv, CSR_GPIO_IN,
CSR_GPIO_IN_VAL_VAUX_PWR_SRC,
CSR_GPIO_IN_BIT_AUX_POWER, 5000);
} else
- iwl_release_restricted_access(priv);
-
+ iwl3945_release_nic_access(priv);
} else {
- iwl_set_bits_mask_restricted_reg(
- priv, ALM_APMG_PS_CTL,
- APMG_PS_CTRL_REG_VAL_POWER_SRC_VMAIN,
- ~APMG_PS_CTRL_REG_MSK_POWER_SRC);
+ iwl3945_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
+ ~APMG_PS_CTRL_MSK_PWR_SRC);
- iwl_release_restricted_access(priv);
- iwl_poll_bit(priv, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC,
+ iwl3945_release_nic_access(priv);
+ iwl3945_poll_bit(priv, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC,
CSR_GPIO_IN_BIT_AUX_POWER, 5000); /* uS */
}
spin_unlock_irqrestore(&priv->lock, flags);
@@ -725,76 +747,72 @@ static int iwl3945_nic_set_pwr_src(struct iwl_priv *priv, int pwr_max)
return rc;
}
-static int iwl3945_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
+static int iwl3945_rx_init(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq)
{
int rc;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl3945_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- iwl_write_restricted(priv, FH_RCSR_RBD_BASE(0), rxq->dma_addr);
- iwl_write_restricted(priv, FH_RCSR_RPTR_ADDR(0),
+ iwl3945_write_direct32(priv, FH_RCSR_RBD_BASE(0), rxq->dma_addr);
+ iwl3945_write_direct32(priv, FH_RCSR_RPTR_ADDR(0),
priv->hw_setting.shared_phys +
- offsetof(struct iwl_shared, rx_read_ptr[0]));
- iwl_write_restricted(priv, FH_RCSR_WPTR(0), 0);
- iwl_write_restricted(
- priv, FH_RCSR_CONFIG(0),
+ offsetof(struct iwl3945_shared, rx_read_ptr[0]));
+ iwl3945_write_direct32(priv, FH_RCSR_WPTR(0), 0);
+ iwl3945_write_direct32(priv, FH_RCSR_CONFIG(0),
ALM_FH_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE |
ALM_FH_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE |
ALM_FH_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN |
ALM_FH_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 |
- (RX_QUEUE_SIZE_LOG <<
- ALM_FH_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) |
+ (RX_QUEUE_SIZE_LOG << ALM_FH_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) |
ALM_FH_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST |
(1 << ALM_FH_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) |
ALM_FH_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH);
/* fake read to flush all prev I/O */
- iwl_read_restricted(priv, FH_RSSR_CTRL);
-
- iwl_release_restricted_access(priv);
+ iwl3945_read_direct32(priv, FH_RSSR_CTRL);
+ iwl3945_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
-static int iwl3945_tx_reset(struct iwl_priv *priv)
+static int iwl3945_tx_reset(struct iwl3945_priv *priv)
{
int rc;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl3945_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
/* bypass mode */
- iwl_write_restricted_reg(priv, SCD_MODE_REG, 0x2);
+ iwl3945_write_prph(priv, ALM_SCD_MODE_REG, 0x2);
/* RA 0 is active */
- iwl_write_restricted_reg(priv, SCD_ARASTAT_REG, 0x01);
+ iwl3945_write_prph(priv, ALM_SCD_ARASTAT_REG, 0x01);
/* all 6 fifo are active */
- iwl_write_restricted_reg(priv, SCD_TXFACT_REG, 0x3f);
+ iwl3945_write_prph(priv, ALM_SCD_TXFACT_REG, 0x3f);
- iwl_write_restricted_reg(priv, SCD_SBYP_MODE_1_REG, 0x010000);
- iwl_write_restricted_reg(priv, SCD_SBYP_MODE_2_REG, 0x030002);
- iwl_write_restricted_reg(priv, SCD_TXF4MF_REG, 0x000004);
- iwl_write_restricted_reg(priv, SCD_TXF5MF_REG, 0x000005);
+ iwl3945_write_prph(priv, ALM_SCD_SBYP_MODE_1_REG, 0x010000);
+ iwl3945_write_prph(priv, ALM_SCD_SBYP_MODE_2_REG, 0x030002);
+ iwl3945_write_prph(priv, ALM_SCD_TXF4MF_REG, 0x000004);
+ iwl3945_write_prph(priv, ALM_SCD_TXF5MF_REG, 0x000005);
- iwl_write_restricted(priv, FH_TSSR_CBB_BASE,
+ iwl3945_write_direct32(priv, FH_TSSR_CBB_BASE,
priv->hw_setting.shared_phys);
- iwl_write_restricted(
- priv, FH_TSSR_MSG_CONFIG,
+ iwl3945_write_direct32(priv, FH_TSSR_MSG_CONFIG,
ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON |
ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON |
ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B |
@@ -803,8 +821,7 @@ static int iwl3945_tx_reset(struct iwl_priv *priv)
ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH |
ALM_FH_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH);
- iwl_release_restricted_access(priv);
-
+ iwl3945_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
@@ -815,12 +832,12 @@ static int iwl3945_tx_reset(struct iwl_priv *priv)
*
* Destroys all DMA structures and initialize them again
*/
-static int iwl3945_txq_ctx_reset(struct iwl_priv *priv)
+static int iwl3945_txq_ctx_reset(struct iwl3945_priv *priv)
{
int rc;
- int i, num_slots;
+ int txq_id, slots_num;
- iwl_hw_txq_ctx_free(priv);
+ iwl3945_hw_txq_ctx_free(priv);
/* Tx CMD queue */
rc = iwl3945_tx_reset(priv);
@@ -828,13 +845,13 @@ static int iwl3945_txq_ctx_reset(struct iwl_priv *priv)
goto error;
/* Tx queue(s) */
- for (i = 0; i < TFD_QUEUE_MAX; i++) {
- num_slots =
- (i == IWL_CMD_QUEUE_NUM) ? TFD_CMD_SLOTS :
- TFD_TX_CMD_SLOTS;
- rc = iwl_tx_queue_init(priv, &priv->txq[i], num_slots, i);
+ for (txq_id = 0; txq_id < TFD_QUEUE_MAX; txq_id++) {
+ slots_num = (txq_id == IWL_CMD_QUEUE_NUM) ?
+ TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
+ rc = iwl3945_tx_queue_init(priv, &priv->txq[txq_id], slots_num,
+ txq_id);
if (rc) {
- IWL_ERROR("Tx %d queue init failed\n", i);
+ IWL_ERROR("Tx %d queue init failed\n", txq_id);
goto error;
}
}
@@ -842,26 +859,26 @@ static int iwl3945_txq_ctx_reset(struct iwl_priv *priv)
return rc;
error:
- iwl_hw_txq_ctx_free(priv);
+ iwl3945_hw_txq_ctx_free(priv);
return rc;
}
-int iwl_hw_nic_init(struct iwl_priv *priv)
+int iwl3945_hw_nic_init(struct iwl3945_priv *priv)
{
u8 rev_id;
int rc;
unsigned long flags;
- struct iwl_rx_queue *rxq = &priv->rxq;
+ struct iwl3945_rx_queue *rxq = &priv->rxq;
- iwl_power_init_handle(priv);
+ iwl3945_power_init_handle(priv);
spin_lock_irqsave(&priv->lock, flags);
- iwl_set_bit(priv, CSR_ANA_PLL_CFG, (1 << 24));
- iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
+ iwl3945_set_bit(priv, CSR_ANA_PLL_CFG, (1 << 24));
+ iwl3945_set_bit(priv, CSR_GIO_CHICKEN_BITS,
CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
- iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
- rc = iwl_poll_bit(priv, CSR_GP_CNTRL,
+ iwl3945_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
+ rc = iwl3945_poll_bit(priv, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
if (rc < 0) {
@@ -870,18 +887,18 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
return rc;
}
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl3945_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- iwl_write_restricted_reg(priv, ALM_APMG_CLK_EN,
- APMG_CLK_REG_VAL_DMA_CLK_RQT |
- APMG_CLK_REG_VAL_BSM_CLK_RQT);
+ iwl3945_write_prph(priv, APMG_CLK_EN_REG,
+ APMG_CLK_VAL_DMA_CLK_RQT |
+ APMG_CLK_VAL_BSM_CLK_RQT);
udelay(20);
- iwl_set_bits_restricted_reg(priv, ALM_APMG_PCIDEV_STT,
- APMG_DEV_STATE_REG_VAL_L1_ACTIVE_DISABLE);
- iwl_release_restricted_access(priv);
+ iwl3945_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
+ APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
+ iwl3945_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
/* Determine HW type */
@@ -897,51 +914,50 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
IWL_DEBUG_INFO("RTP type \n");
else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) {
IWL_DEBUG_INFO("ALM-MB type\n");
- iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
+ iwl3945_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_BIT_ALMAGOR_MB);
} else {
IWL_DEBUG_INFO("ALM-MM type\n");
- iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
+ iwl3945_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_BIT_ALMAGOR_MM);
}
spin_unlock_irqrestore(&priv->lock, flags);
/* Initialize the EEPROM */
- rc = iwl_eeprom_init(priv);
+ rc = iwl3945_eeprom_init(priv);
if (rc)
return rc;
spin_lock_irqsave(&priv->lock, flags);
if (EEPROM_SKU_CAP_OP_MODE_MRC == priv->eeprom.sku_cap) {
IWL_DEBUG_INFO("SKU OP mode is mrc\n");
- iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
+ iwl3945_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_BIT_SKU_MRC);
- } else {
+ } else
IWL_DEBUG_INFO("SKU OP mode is basic\n");
- }
if ((priv->eeprom.board_revision & 0xF0) == 0xD0) {
IWL_DEBUG_INFO("3945ABG revision is 0x%X\n",
priv->eeprom.board_revision);
- iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
+ iwl3945_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
} else {
IWL_DEBUG_INFO("3945ABG revision is 0x%X\n",
priv->eeprom.board_revision);
- iwl_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
+ iwl3945_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
}
if (priv->eeprom.almgor_m_version <= 1) {
- iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
+ iwl3945_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A);
IWL_DEBUG_INFO("Card M type A version is 0x%X\n",
priv->eeprom.almgor_m_version);
} else {
IWL_DEBUG_INFO("Card M type B version is 0x%X\n",
priv->eeprom.almgor_m_version);
- iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
+ iwl3945_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B);
}
spin_unlock_irqrestore(&priv->lock, flags);
@@ -954,33 +970,32 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
/* Allocate the RX queue, or reset if it is already allocated */
if (!rxq->bd) {
- rc = iwl_rx_queue_alloc(priv);
+ rc = iwl3945_rx_queue_alloc(priv);
if (rc) {
IWL_ERROR("Unable to initialize Rx queue\n");
return -ENOMEM;
}
} else
- iwl_rx_queue_reset(priv, rxq);
+ iwl3945_rx_queue_reset(priv, rxq);
- iwl_rx_replenish(priv, 1);
+ iwl3945_rx_replenish(priv);
iwl3945_rx_init(priv, rxq);
spin_lock_irqsave(&priv->lock, flags);
-/*
- * Look at using this instead :::
+ /* Look at using this instead:
rxq->need_update = 1;
- iwl_rx_queue_update_write_ptr(priv, rxq);
-*/
+ iwl3945_rx_queue_update_write_ptr(priv, rxq);
+ */
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl3945_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- iwl_write_restricted(priv, FH_RCSR_WPTR(0), rxq->write & ~7);
- iwl_release_restricted_access(priv);
+ iwl3945_write_direct32(priv, FH_RCSR_WPTR(0), rxq->write & ~7);
+ iwl3945_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
@@ -988,55 +1003,55 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
if (rc)
return rc;
- priv->status |= STATUS_INIT;
+ set_bit(STATUS_INIT, &priv->status);
return 0;
}
/**
- * iwl_hw_txq_ctx_free - Free TXQ Context
+ * iwl3945_hw_txq_ctx_free - Free TXQ Context
*
* Destroy all TX DMA queues and structures
*/
-void iwl_hw_txq_ctx_free(struct iwl_priv *priv)
+void iwl3945_hw_txq_ctx_free(struct iwl3945_priv *priv)
{
int txq_id;
/* Tx queues */
for (txq_id = 0; txq_id < TFD_QUEUE_MAX; txq_id++)
- iwl_tx_queue_free(priv, &priv->txq[txq_id]);
+ iwl3945_tx_queue_free(priv, &priv->txq[txq_id]);
}
-void iwl_hw_txq_ctx_stop(struct iwl_priv *priv)
+void iwl3945_hw_txq_ctx_stop(struct iwl3945_priv *priv)
{
int queue;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
- if (iwl_grab_restricted_access(priv)) {
+ if (iwl3945_grab_nic_access(priv)) {
spin_unlock_irqrestore(&priv->lock, flags);
- iwl_hw_txq_ctx_free(priv);
+ iwl3945_hw_txq_ctx_free(priv);
return;
}
/* stop SCD */
- iwl_write_restricted_reg(priv, SCD_MODE_REG, 0);
+ iwl3945_write_prph(priv, ALM_SCD_MODE_REG, 0);
/* reset TFD queues */
for (queue = TFD_QUEUE_MIN; queue < TFD_QUEUE_MAX; queue++) {
- iwl_write_restricted(priv, FH_TCSR_CONFIG(queue), 0x0);
- iwl_poll_restricted_bit(priv, FH_TSSR_TX_STATUS,
- ALM_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE
- (queue), 1000);
+ iwl3945_write_direct32(priv, FH_TCSR_CONFIG(queue), 0x0);
+ iwl3945_poll_direct_bit(priv, FH_TSSR_TX_STATUS,
+ ALM_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(queue),
+ 1000);
}
- iwl_release_restricted_access(priv);
+ iwl3945_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
- iwl_hw_txq_ctx_free(priv);
+ iwl3945_hw_txq_ctx_free(priv);
}
-int iwl_hw_nic_stop_master(struct iwl_priv *priv)
+int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv)
{
int rc = 0;
u32 reg_val;
@@ -1045,17 +1060,16 @@ int iwl_hw_nic_stop_master(struct iwl_priv *priv)
spin_lock_irqsave(&priv->lock, flags);
/* set stop master bit */
- iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
+ iwl3945_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
- reg_val = iwl_read32(priv, CSR_GP_CNTRL);
+ reg_val = iwl3945_read32(priv, CSR_GP_CNTRL);
if (CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE ==
- (reg_val & CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE)) {
- IWL_DEBUG_INFO
- ("Card in power save, master is already stopped\n");
- } else {
- rc = iwl_poll_bit(priv,
- CSR_RESET,
+ (reg_val & CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE))
+ IWL_DEBUG_INFO("Card in power save, master is already "
+ "stopped\n");
+ else {
+ rc = iwl3945_poll_bit(priv, CSR_RESET,
CSR_RESET_REG_FLAG_MASTER_DISABLED,
CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
if (rc < 0) {
@@ -1070,52 +1084,51 @@ int iwl_hw_nic_stop_master(struct iwl_priv *priv)
return rc;
}
-int iwl_hw_nic_reset(struct iwl_priv *priv)
+int iwl3945_hw_nic_reset(struct iwl3945_priv *priv)
{
int rc;
unsigned long flags;
- iwl_hw_nic_stop_master(priv);
+ iwl3945_hw_nic_stop_master(priv);
spin_lock_irqsave(&priv->lock, flags);
- iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
+ iwl3945_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
- rc = iwl_poll_bit(priv, CSR_GP_CNTRL,
+ rc = iwl3945_poll_bit(priv, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
- rc = iwl_grab_restricted_access(priv);
- if (rc) {
- iwl_write_restricted_reg(priv, APMG_CLK_CTRL_REG,
- APMG_CLK_REG_VAL_BSM_CLK_RQT);
+ rc = iwl3945_grab_nic_access(priv);
+ if (!rc) {
+ iwl3945_write_prph(priv, APMG_CLK_CTRL_REG,
+ APMG_CLK_VAL_BSM_CLK_RQT);
udelay(10);
- iwl_set_bit(priv, CSR_GP_CNTRL,
+ iwl3945_set_bit(priv, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
- iwl_write_restricted_reg(priv, ALM_APMG_LARC_INT_MSK, 0x0);
- iwl_write_restricted_reg(priv, ALM_APMG_LARC_INT, 0xFFFFFFFF);
+ iwl3945_write_prph(priv, APMG_RTC_INT_MSK_REG, 0x0);
+ iwl3945_write_prph(priv, APMG_RTC_INT_STT_REG,
+ 0xFFFFFFFF);
/* enable DMA */
- iwl_write_restricted_reg(priv, ALM_APMG_CLK_EN,
- APMG_CLK_REG_VAL_DMA_CLK_RQT |
- APMG_CLK_REG_VAL_BSM_CLK_RQT);
+ iwl3945_write_prph(priv, APMG_CLK_EN_REG,
+ APMG_CLK_VAL_DMA_CLK_RQT |
+ APMG_CLK_VAL_BSM_CLK_RQT);
udelay(10);
- iwl_set_bits_restricted_reg(
- priv, ALM_APMG_PS_CTL,
- APMG_PS_CTRL_REG_VAL_ALM_R_RESET_REQ);
+ iwl3945_set_bits_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_RESET_REQ);
udelay(5);
- iwl_clear_bits_restricted_reg(
- priv, ALM_APMG_PS_CTL,
- APMG_PS_CTRL_REG_VAL_ALM_R_RESET_REQ);
- iwl_release_restricted_access(priv);
+ iwl3945_clear_bits_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_RESET_REQ);
+ iwl3945_release_nic_access(priv);
}
/* Clear the 'host command active' bit... */
- priv->status &= ~STATUS_HCMD_ACTIVE;
+ clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
wake_up_interruptible(&priv->wait_command_queue);
spin_unlock_irqrestore(&priv->lock, flags);
@@ -1124,48 +1137,49 @@ int iwl_hw_nic_reset(struct iwl_priv *priv)
}
/**
- * reg_adjust_power_by_temp - return index delta into power gain settings table
- */
-static int reg_adjust_power_by_temp(int new_reading, int old_reading)
+ * iwl3945_hw_reg_adjust_power_by_temp
+ * return index delta into power gain settings table
+*/
+static int iwl3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading)
{
return (new_reading - old_reading) * (-11) / 100;
}
/**
- * reg_temp_out_of_range - Keep temperature in sane range
+ * iwl3945_hw_reg_temp_out_of_range - Keep temperature in sane range
*/
-static inline int reg_temp_out_of_range(int temperature)
+static inline int iwl3945_hw_reg_temp_out_of_range(int temperature)
{
return (((temperature < -260) || (temperature > 25)) ? 1 : 0);
}
-int iwl_hw_get_temperature(struct iwl_priv *priv)
+int iwl3945_hw_get_temperature(struct iwl3945_priv *priv)
{
- return iwl_read32(priv, CSR_UCODE_DRV_GP2);
+ return iwl3945_read32(priv, CSR_UCODE_DRV_GP2);
}
/**
- * reg_txpower_get_temperature - get current temperature by reading from NIC
- */
-static int reg_txpower_get_temperature(struct iwl_priv *priv)
+ * iwl3945_hw_reg_txpower_get_temperature
+ * get the current temperature by reading from NIC
+*/
+static int iwl3945_hw_reg_txpower_get_temperature(struct iwl3945_priv *priv)
{
int temperature;
- temperature = iwl_hw_get_temperature(priv);
+ temperature = iwl3945_hw_get_temperature(priv);
/* driver's okay range is -260 to +25.
* human readable okay range is 0 to +285 */
IWL_DEBUG_INFO("Temperature: %d\n", temperature + IWL_TEMP_CONVERT);
/* handle insane temp reading */
- if (reg_temp_out_of_range(temperature)) {
+ if (iwl3945_hw_reg_temp_out_of_range(temperature)) {
IWL_ERROR("Error bad temperature value %d\n", temperature);
/* if really really hot(?),
* substitute the 3rd band/group's temp measured at factory */
if (priv->last_temperature > 100)
- temperature =
- (s16)le16_to_cpu(priv->eeprom.groups[2].temperature);
+ temperature = priv->eeprom.groups[2].temperature;
else /* else use most recent "sane" value from driver */
temperature = priv->last_temperature;
}
@@ -1184,11 +1198,11 @@ static int reg_txpower_get_temperature(struct iwl_priv *priv)
* records new temperature in tx_mgr->temperature.
* replaces tx_mgr->last_temperature *only* if calib needed
* (assumes caller will actually do the calibration!). */
-static int is_temp_calib_needed(struct iwl_priv *priv)
+static int is_temp_calib_needed(struct iwl3945_priv *priv)
{
int temp_diff;
- priv->temperature = reg_txpower_get_temperature(priv);
+ priv->temperature = iwl3945_hw_reg_txpower_get_temperature(priv);
temp_diff = priv->temperature - priv->last_temperature;
/* get absolute value */
@@ -1220,7 +1234,7 @@ static int is_temp_calib_needed(struct iwl_priv *priv)
/* radio and DSP power table, each step is 1/2 dB.
* 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */
-static struct iwl_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = {
+static struct iwl3945_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = {
{
{251, 127}, /* 2.4 GHz, highest power */
{251, 127},
@@ -1299,7 +1313,7 @@ static struct iwl_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = {
{3, 113},
{3, 106},
{3, 102},
- {3, 95}}, /* 2.4 GHz, lowest power */
+ {3, 95} }, /* 2.4 GHz, lowest power */
{
{251, 127}, /* 5.x GHz, highest power */
{251, 120},
@@ -1378,10 +1392,10 @@ static struct iwl_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = {
{35, 113},
{35, 107},
{35, 99},
- {3, 120}} /* 5.x GHz, lowest power */
+ {3, 120} } /* 5.x GHz, lowest power */
};
-static inline u8 reg_fix_power_index(int index)
+static inline u8 iwl3945_hw_reg_fix_power_index(int index)
{
if (index < 0)
return 0;
@@ -1394,17 +1408,17 @@ static inline u8 reg_fix_power_index(int index)
#define REG_RECALIB_PERIOD (60)
/**
- * reg_set_scan_power - Set Tx power for scan probe requests
+ * iwl3945_hw_reg_set_scan_power - Set Tx power for scan probe requests
*
* Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK)
* or 6 Mbit (OFDM) rates.
*/
-static void reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index,
- s32 rate_index, const s8 * clip_pwrs,
- struct iwl_channel_info *ch_info,
+static void iwl3945_hw_reg_set_scan_power(struct iwl3945_priv *priv, u32 scan_tbl_index,
+ s32 rate_index, const s8 *clip_pwrs,
+ struct iwl3945_channel_info *ch_info,
int band_index)
{
- struct iwl_scan_power_info *scan_power_info;
+ struct iwl3945_scan_power_info *scan_power_info;
s8 power;
u8 power_index;
@@ -1413,7 +1427,7 @@ static void reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index,
/* use this channel group's 6Mbit clipping/saturation pwr,
* but cap at regulatory scan power restriction (set during init
* based on eeprom channel data) for this channel. */
- power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX]);
+ power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX_TABLE]);
/* further limit to user's max power preference.
* FIXME: Other spectrum management power limitations do not
@@ -1428,12 +1442,7 @@ static void reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index,
* *index*. */
power_index = ch_info->power_info[rate_index].power_table_index
- (power - ch_info->power_info
- [IWL_RATE_6M_INDEX].requested_power) * 2;
-
-#if 0
- IWL_DEBUG_POWER("chnl %d scan power index %d\n",
- ch_info->channel, power_index);
-#endif
+ [IWL_RATE_6M_INDEX_TABLE].requested_power) * 2;
/* store reference index that we use when adjusting *all* scan
* powers. So we can accommodate user (all channel) or spectrum
@@ -1445,7 +1454,7 @@ static void reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index,
* of the table. */
/* don't exceed table bounds for "real" setting */
- power_index = reg_fix_power_index(power_index);
+ power_index = iwl3945_hw_reg_fix_power_index(power_index);
scan_power_info->power_table_index = power_index;
scan_power_info->tpc.tx_gain =
@@ -1455,21 +1464,21 @@ static void reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index,
}
/**
- * iwl_hw_reg_send_txpower - fill in Tx Power command with gain settings
+ * iwl3945_hw_reg_send_txpower - fill in Tx Power command with gain settings
*
* Configures power settings for all rates for the current channel,
* using values from channel info struct, and send to NIC
*/
-int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
+int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv)
{
- int rate_idx;
- const struct iwl_channel_info *ch_info = NULL;
- struct iwl_txpowertable_cmd txpower = {
+ int rate_idx, i;
+ const struct iwl3945_channel_info *ch_info = NULL;
+ struct iwl3945_txpowertable_cmd txpower = {
.channel = priv->active_rxon.channel,
};
txpower.band = (priv->phymode == MODE_IEEE80211A) ? 0 : 1;
- ch_info = iwl_get_channel_info(priv,
+ ch_info = iwl3945_get_channel_info(priv,
priv->phymode,
le16_to_cpu(priv->active_rxon.channel));
if (!ch_info) {
@@ -1486,25 +1495,41 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
}
/* fill cmd with power settings for all rates for current channel */
- for (rate_idx = 0; rate_idx < IWL_RATE_COUNT; rate_idx++) {
- txpower.power[rate_idx].tpc = ch_info->power_info[rate_idx].tpc;
- txpower.power[rate_idx].rate = iwl_rates[rate_idx].plcp;
+ /* Fill OFDM rate */
+ for (rate_idx = IWL_FIRST_OFDM_RATE, i = 0;
+ rate_idx <= IWL_LAST_OFDM_RATE; rate_idx++, i++) {
+
+ txpower.power[i].tpc = ch_info->power_info[i].tpc;
+ txpower.power[i].rate = iwl3945_rates[rate_idx].plcp;
+
+ IWL_DEBUG_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
+ le16_to_cpu(txpower.channel),
+ txpower.band,
+ txpower.power[i].tpc.tx_gain,
+ txpower.power[i].tpc.dsp_atten,
+ txpower.power[i].rate);
+ }
+ /* Fill CCK rates */
+ for (rate_idx = IWL_FIRST_CCK_RATE;
+ rate_idx <= IWL_LAST_CCK_RATE; rate_idx++, i++) {
+ txpower.power[i].tpc = ch_info->power_info[i].tpc;
+ txpower.power[i].rate = iwl3945_rates[rate_idx].plcp;
IWL_DEBUG_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
le16_to_cpu(txpower.channel),
txpower.band,
- txpower.power[rate_idx].tpc.tx_gain,
- txpower.power[rate_idx].tpc.dsp_atten,
- txpower.power[rate_idx].rate);
+ txpower.power[i].tpc.tx_gain,
+ txpower.power[i].tpc.dsp_atten,
+ txpower.power[i].rate);
}
- return iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD,
- sizeof(struct iwl_txpowertable_cmd), &txpower);
+ return iwl3945_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD,
+ sizeof(struct iwl3945_txpowertable_cmd), &txpower);
}
/**
- * reg_set_new_power - Configures power tables at new levels
+ * iwl3945_hw_reg_set_new_power - Configures power tables at new levels
* @ch_info: Channel to update. Uses power_info.requested_power.
*
* Replace requested_power and base_power_index ch_info fields for
@@ -1515,14 +1540,14 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
*
* This does *not* send anything to NIC, just sets up ch_info for one channel.
*
- * NOTE:reg_compensate_for_temperature_dif() *must* be run after this to
- * properly fill out the scan powers, and actual h/w gain settings,
- * and send changes to NIC
+ * NOTE: reg_compensate_for_temperature_dif() *must* be run after this to
+ * properly fill out the scan powers, and actual h/w gain settings,
+ * and send changes to NIC
*/
-static int reg_set_new_power(struct iwl_priv *priv,
- struct iwl_channel_info *ch_info)
+static int iwl3945_hw_reg_set_new_power(struct iwl3945_priv *priv,
+ struct iwl3945_channel_info *ch_info)
{
- struct iwl_channel_power_info *power_info;
+ struct iwl3945_channel_power_info *power_info;
int power_changed = 0;
int i;
const s8 *clip_pwrs;
@@ -1535,7 +1560,7 @@ static int reg_set_new_power(struct iwl_priv *priv,
power_info = ch_info->power_info;
/* update OFDM Txpower settings */
- for (i = IWL_FIRST_OFDM_RATE; i <= IWL_LAST_OFDM_RATE;
+ for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE;
i++, ++power_info) {
int delta_idx;
@@ -1559,14 +1584,14 @@ static int reg_set_new_power(struct iwl_priv *priv,
* ... all CCK power settings for a given channel are the *same*. */
if (power_changed) {
power =
- ch_info->power_info[IWL_RATE_12M_INDEX].
+ ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
requested_power + IWL_CCK_FROM_OFDM_POWER_DIFF;
- /* do all CCK rates' iwl_channel_power_info structures */
- for (i = IWL_FIRST_CCK_RATE; i <= IWL_LAST_CCK_RATE; i++) {
+ /* do all CCK rates' iwl3945_channel_power_info structures */
+ for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++) {
power_info->requested_power = power;
power_info->base_power_index =
- ch_info->power_info[IWL_RATE_12M_INDEX].
+ ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
base_power_index + IWL_CCK_FROM_OFDM_INDEX_DIFF;
++power_info;
}
@@ -1576,12 +1601,13 @@ static int reg_set_new_power(struct iwl_priv *priv,
}
/**
- * reg_get_channel_txpower_limit - returns new power limit for channel
+ * iwl3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel
*
- * NOTE: Returned power limit may be less (but not more) than requested,
- * based strictly on regulatory (eeprom and spectrum mgt) limitations
- * (no consideration for h/w clipping limitations). */
-static int reg_get_channel_txpower_limit(struct iwl_channel_info *ch_info)
+ * NOTE: Returned power limit may be less (but not more) than requested,
+ * based strictly on regulatory (eeprom and spectrum mgt) limitations
+ * (no consideration for h/w clipping limitations).
+ */
+static int iwl3945_hw_reg_get_ch_txpower_limit(struct iwl3945_channel_info *ch_info)
{
s8 max_power;
@@ -1595,11 +1621,12 @@ static int reg_get_channel_txpower_limit(struct iwl_channel_info *ch_info)
else
#endif
max_power = ch_info->eeprom.max_power_avg;
+
return min(max_power, ch_info->max_power_avg);
}
/**
- * reg_txpower_compensate_for_temperature_dif - Compensate for temperature
+ * iwl3945_hw_reg_comp_txpower_temp - Compensate for temperature
*
* Compensate txpower settings of *all* channels for temperature.
* This only accounts for the difference between current temperature
@@ -1608,9 +1635,9 @@ static int reg_get_channel_txpower_limit(struct iwl_channel_info *ch_info)
*
* If RxOn is "associated", this sends the new Txpower to NIC!
*/
-static int reg_txpower_compensate_for_temperature_dif(struct iwl_priv *priv)
+static int iwl3945_hw_reg_comp_txpower_temp(struct iwl3945_priv *priv)
{
- struct iwl_channel_info *ch_info = NULL;
+ struct iwl3945_channel_info *ch_info = NULL;
int delta_index;
const s8 *clip_pwrs; /* array of h/w max power levels for each rate */
u8 a_band;
@@ -1631,7 +1658,8 @@ static int reg_txpower_compensate_for_temperature_dif(struct iwl_priv *priv)
/* get power index adjustment based on curr and factory
* temps */
- delta_index = reg_adjust_power_by_temp(temperature, ref_temp);
+ delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature,
+ ref_temp);
/* set tx power value for all rates, OFDM and CCK */
for (rate_index = 0; rate_index < IWL_RATE_COUNT;
@@ -1643,7 +1671,7 @@ static int reg_txpower_compensate_for_temperature_dif(struct iwl_priv *priv)
power_idx += delta_index;
/* stay within table range */
- power_idx = reg_fix_power_index(power_idx);
+ power_idx = iwl3945_hw_reg_fix_power_index(power_idx);
ch_info->power_info[rate_index].
power_table_index = (u8) power_idx;
ch_info->power_info[rate_index].tpc =
@@ -1657,22 +1685,21 @@ static int reg_txpower_compensate_for_temperature_dif(struct iwl_priv *priv)
for (scan_tbl_index = 0;
scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
s32 actual_index = (scan_tbl_index == 0) ?
- IWL_RATE_1M_INDEX : IWL_RATE_6M_INDEX;
- reg_set_scan_power(priv, scan_tbl_index,
+ IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
+ iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index,
actual_index, clip_pwrs,
ch_info, a_band);
}
}
/* send Txpower command for current channel to ucode */
- return iwl_hw_reg_send_txpower(priv);
+ return iwl3945_hw_reg_send_txpower(priv);
}
-int iwl_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
+int iwl3945_hw_reg_set_txpower(struct iwl3945_priv *priv, s8 power)
{
- struct iwl_channel_info *ch_info;
+ struct iwl3945_channel_info *ch_info;
s8 max_power;
- u8 channel;
u8 a_band;
u8 i;
@@ -1690,28 +1717,33 @@ int iwl_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
for (i = 0; i < priv->channel_count; i++) {
ch_info = &priv->channel_info[i];
a_band = is_channel_a_band(ch_info);
- channel = ch_info->channel;
/* find minimum power of all user and regulatory constraints
* (does not consider h/w clipping limitations) */
- max_power = reg_get_channel_txpower_limit(ch_info);
+ max_power = iwl3945_hw_reg_get_ch_txpower_limit(ch_info);
max_power = min(power, max_power);
if (max_power != ch_info->curr_txpow) {
ch_info->curr_txpow = max_power;
/* this considers the h/w clipping limitations */
- reg_set_new_power(priv, ch_info);
+ iwl3945_hw_reg_set_new_power(priv, ch_info);
}
}
/* update txpower settings for all channels,
* send to NIC if associated. */
is_temp_calib_needed(priv);
- reg_txpower_compensate_for_temperature_dif(priv);
+ iwl3945_hw_reg_comp_txpower_temp(priv);
return 0;
}
+/* will add 3945 channel switch cmd handling later */
+int iwl3945_hw_channel_switch(struct iwl3945_priv *priv, u16 channel)
+{
+ return 0;
+}
+
/**
* iwl3945_reg_txpower_periodic - called when time to check our temperature.
*
@@ -1722,28 +1754,28 @@ int iwl_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
* -- send new set of gain settings to NIC
* NOTE: This should continue working, even when we're not associated,
* so we can keep our internal table of scan powers current. */
-void iwl3945_reg_txpower_periodic(struct iwl_priv *priv)
+void iwl3945_reg_txpower_periodic(struct iwl3945_priv *priv)
{
/* This will kick in the "brute force"
- * reg_txpower_compensate_for_temperature_dif() below */
+ * iwl3945_hw_reg_comp_txpower_temp() below */
if (!is_temp_calib_needed(priv))
goto reschedule;
/* Set up a new set of temp-adjusted TxPowers, send to NIC.
* This is based *only* on current temperature,
* ignoring any previous power measurements */
- reg_txpower_compensate_for_temperature_dif(priv);
+ iwl3945_hw_reg_comp_txpower_temp(priv);
reschedule:
queue_delayed_work(priv->workqueue,
&priv->thermal_periodic, REG_RECALIB_PERIOD * HZ);
}
-void iwl3945_bg_reg_txpower_periodic(void *p)
+static void iwl3945_bg_reg_txpower_periodic(void *p)
{
- struct iwl_priv *priv = p;
+ struct iwl3945_priv *priv = p;
- if (priv->status & STATUS_EXIT_PENDING)
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
mutex_lock(&priv->mutex);
@@ -1751,17 +1783,21 @@ void iwl3945_bg_reg_txpower_periodic(void *p)
mutex_unlock(&priv->mutex);
}
-/* reg_get_chnl_grp_index - find the channel-group index (0-4) for the channel.
+/**
+ * iwl3945_hw_reg_get_ch_grp_index - find the channel-group index (0-4)
+ * for the channel.
+ *
+ * This function is used when initializing channel-info structs.
*
- * ... used when initializing channel-info structs.
- * NOTE: These channel groups do *NOT* match the bands above!
- * These channel groups are based on factory-tested channels;
- * on A-band, EEPROM's "group frequency" entries represent the top channel
- * in each group 1-4. Group 5 All B/G channels are in group 0. */
-static u16 reg_get_chnl_grp_index(struct iwl_priv *priv,
- const struct iwl_channel_info *ch_info)
+ * NOTE: These channel groups do *NOT* match the bands above!
+ * These channel groups are based on factory-tested channels;
+ * on A-band, EEPROM's "group frequency" entries represent the top
+ * channel in each group 1-4. Group 5 All B/G channels are in group 0.
+ */
+static u16 iwl3945_hw_reg_get_ch_grp_index(struct iwl3945_priv *priv,
+ const struct iwl3945_channel_info *ch_info)
{
- struct iwl_eeprom_txpower_group *ch_grp = &priv->eeprom.groups[0];
+ struct iwl3945_eeprom_txpower_group *ch_grp = &priv->eeprom.groups[0];
u8 group;
u16 group_index = 0; /* based on factory calib frequencies */
u8 grp_channel;
@@ -1787,20 +1823,20 @@ static u16 reg_get_chnl_grp_index(struct iwl_priv *priv,
}
/**
- * reg_get_matched_power_index - Interpolate to get nominal index
+ * iwl3945_hw_reg_get_matched_power_index - Interpolate to get nominal index
*
* Interpolate to get nominal (i.e. at factory calibration temperature) index
* into radio/DSP gain settings table for requested power.
*/
-static int reg_get_matched_power_index(struct iwl_priv *priv,
+static int iwl3945_hw_reg_get_matched_power_index(struct iwl3945_priv *priv,
s8 requested_power,
- s32 setting_index, s32 * new_index)
+ s32 setting_index, s32 *new_index)
{
- const struct iwl_eeprom_txpower_group *chnl_grp = NULL;
+ const struct iwl3945_eeprom_txpower_group *chnl_grp = NULL;
s32 index0, index1;
s32 power = 2 * requested_power;
s32 i;
- const struct iwl_eeprom_txpower_sample *samples;
+ const struct iwl3945_eeprom_txpower_sample *samples;
s32 gains0, gains1;
s32 res;
s32 denominator;
@@ -1840,11 +1876,11 @@ static int reg_get_matched_power_index(struct iwl_priv *priv,
return 0;
}
-static void reg_init_channel_groups(struct iwl_priv *priv)
+static void iwl3945_hw_reg_init_channel_groups(struct iwl3945_priv *priv)
{
u32 i;
s32 rate_index;
- const struct iwl_eeprom_txpower_group *group;
+ const struct iwl3945_eeprom_txpower_group *group;
IWL_DEBUG_POWER("Initializing factory calib info from EEPROM\n");
@@ -1879,19 +1915,19 @@ static void reg_init_channel_groups(struct iwl_priv *priv)
for (rate_index = 0;
rate_index < IWL_RATE_COUNT; rate_index++, clip_pwrs++) {
switch (rate_index) {
- case IWL_RATE_36M_INDEX:
+ case IWL_RATE_36M_INDEX_TABLE:
if (i == 0) /* B/G */
*clip_pwrs = satur_pwr;
else /* A */
*clip_pwrs = satur_pwr - 5;
break;
- case IWL_RATE_48M_INDEX:
+ case IWL_RATE_48M_INDEX_TABLE:
if (i == 0)
*clip_pwrs = satur_pwr - 7;
else
*clip_pwrs = satur_pwr - 10;
break;
- case IWL_RATE_54M_INDEX:
+ case IWL_RATE_54M_INDEX_TABLE:
if (i == 0)
*clip_pwrs = satur_pwr - 9;
else
@@ -1920,10 +1956,10 @@ static void reg_init_channel_groups(struct iwl_priv *priv)
*
* This does *not* write values to NIC, just sets up our internal table.
*/
-int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
+int iwl3945_txpower_set_from_eeprom(struct iwl3945_priv *priv)
{
- struct iwl_channel_info *ch_info = NULL;
- struct iwl_channel_power_info *pwr_info;
+ struct iwl3945_channel_info *ch_info = NULL;
+ struct iwl3945_channel_power_info *pwr_info;
int delta_index;
u8 rate_index;
u8 scan_tbl_index;
@@ -1936,10 +1972,10 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
/* save temperature reference,
* so we can determine next time to calibrate */
- temperature = reg_txpower_get_temperature(priv);
+ temperature = iwl3945_hw_reg_txpower_get_temperature(priv);
priv->last_temperature = temperature;
- reg_init_channel_groups(priv);
+ iwl3945_hw_reg_init_channel_groups(priv);
/* initialize Tx power info for each and every channel, 2.4 and 5.x */
for (i = 0, ch_info = priv->channel_info; i < priv->channel_count;
@@ -1949,17 +1985,17 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
continue;
/* find this channel's channel group (*not* "band") index */
- ch_info->group_index = reg_get_chnl_grp_index(priv, ch_info);
+ ch_info->group_index =
+ iwl3945_hw_reg_get_ch_grp_index(priv, ch_info);
/* Get this chnlgrp's rate->max/clip-powers table */
clip_pwrs = priv->clip_groups[ch_info->group_index].clip_powers;
/* calculate power index *adjustment* value according to
* diff between current temperature and factory temperature */
- delta_index = reg_adjust_power_by_temp(
- temperature,
- (s16)le16_to_cpu(
- priv->eeprom.groups[ch_info->group_index].temperature));
+ delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature,
+ priv->eeprom.groups[ch_info->group_index].
+ temperature);
IWL_DEBUG_POWER("Delta index for channel %d: %d [%d]\n",
ch_info->channel, delta_index, temperature +
@@ -1980,7 +2016,7 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
/* get base (i.e. at factory-measured temperature)
* power table index for this rate's power */
- rc = reg_get_matched_power_index(priv, pwr,
+ rc = iwl3945_hw_reg_get_matched_power_index(priv, pwr,
ch_info->group_index,
&power_idx);
if (rc) {
@@ -1993,9 +2029,9 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
power_idx += delta_index;
/* stay within range of gain table */
- power_idx = reg_fix_power_index(power_idx);
+ power_idx = iwl3945_hw_reg_fix_power_index(power_idx);
- /* fill 1 OFDM rate's iwl_channel_power_info struct */
+ /* fill 1 OFDM rate's iwl3945_channel_power_info struct */
pwr_info->requested_power = pwr;
pwr_info->power_table_index = (u8) power_idx;
pwr_info->tpc.tx_gain =
@@ -2005,25 +2041,25 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
}
/* set tx power for CCK rates, based on OFDM 12 Mbit settings*/
- pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX];
- power = pwr_info->requested_power
- + IWL_CCK_FROM_OFDM_POWER_DIFF;
- pwr_index = pwr_info->power_table_index
- + IWL_CCK_FROM_OFDM_INDEX_DIFF;
- base_pwr_index = pwr_info->base_power_index
- + IWL_CCK_FROM_OFDM_INDEX_DIFF;
+ pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX_TABLE];
+ power = pwr_info->requested_power +
+ IWL_CCK_FROM_OFDM_POWER_DIFF;
+ pwr_index = pwr_info->power_table_index +
+ IWL_CCK_FROM_OFDM_INDEX_DIFF;
+ base_pwr_index = pwr_info->base_power_index +
+ IWL_CCK_FROM_OFDM_INDEX_DIFF;
/* stay within table range */
- pwr_index = reg_fix_power_index(pwr_index);
+ pwr_index = iwl3945_hw_reg_fix_power_index(pwr_index);
gain = power_gain_table[a_band][pwr_index].tx_gain;
dsp_atten = power_gain_table[a_band][pwr_index].dsp_atten;
- /* fill each CCK rate's iwl_channel_power_info structure
+ /* fill each CCK rate's iwl3945_channel_power_info structure
* NOTE: All CCK-rate Txpwrs are the same for a given chnl!
* NOTE: CCK rates start at end of OFDM rates! */
- for (rate_index = IWL_OFDM_RATES;
- rate_index < IWL_RATE_COUNT; rate_index++) {
- pwr_info = &ch_info->power_info[rate_index];
+ for (rate_index = 0;
+ rate_index < IWL_CCK_RATES; rate_index++) {
+ pwr_info = &ch_info->power_info[rate_index+IWL_OFDM_RATES];
pwr_info->requested_power = power;
pwr_info->power_table_index = pwr_index;
pwr_info->base_power_index = base_pwr_index;
@@ -2035,99 +2071,98 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
for (scan_tbl_index = 0;
scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
s32 actual_index = (scan_tbl_index == 0) ?
- IWL_RATE_1M_INDEX : IWL_RATE_6M_INDEX;
- reg_set_scan_power(priv, scan_tbl_index,
- actual_index, clip_pwrs,
- ch_info, a_band);
+ IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
+ iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index,
+ actual_index, clip_pwrs, ch_info, a_band);
}
}
return 0;
}
-int iwl_hw_rxq_stop(struct iwl_priv *priv)
+int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv)
{
int rc;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl3945_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- iwl_write_restricted(priv, FH_RCSR_CONFIG(0), 0);
- rc = iwl_poll_restricted_bit(priv, FH_RSSR_STATUS, (1 << 24), 1000);
+ iwl3945_write_direct32(priv, FH_RCSR_CONFIG(0), 0);
+ rc = iwl3945_poll_direct_bit(priv, FH_RSSR_STATUS, (1 << 24), 1000);
if (rc < 0)
IWL_ERROR("Can't stop Rx DMA.\n");
- iwl_release_restricted_access(priv);
+ iwl3945_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
-int iwl_hw_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq)
+int iwl3945_hw_tx_queue_init(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq)
{
int rc;
unsigned long flags;
int txq_id = txq->q.id;
- struct iwl_shared *shared_data = priv->hw_setting.shared_virt;
+ struct iwl3945_shared *shared_data = priv->hw_setting.shared_virt;
- shared_data->tx_base_ptr[txq_id] = (u32) txq->q.dma_addr;
-
- txq->q.element_size = sizeof(struct iwl_tfd_frame);
+ shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32)txq->q.dma_addr);
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl3945_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- iwl_write_restricted(priv, FH_CBCC_CTRL(txq_id), 0);
- iwl_write_restricted(priv, FH_CBCC_BASE(txq_id), 0);
+ iwl3945_write_direct32(priv, FH_CBCC_CTRL(txq_id), 0);
+ iwl3945_write_direct32(priv, FH_CBCC_BASE(txq_id), 0);
- iwl_write_restricted(
- priv, FH_TCSR_CONFIG(txq_id),
+ iwl3945_write_direct32(priv, FH_TCSR_CONFIG(txq_id),
ALM_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT |
ALM_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF |
ALM_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD |
ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL |
ALM_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE);
- iwl_release_restricted_access(priv);
+ iwl3945_release_nic_access(priv);
/* fake read to flush all prev. writes */
- iwl_read32(priv, FH_TSSR_CBB_BASE);
-
+ iwl3945_read32(priv, FH_TSSR_CBB_BASE);
spin_unlock_irqrestore(&priv->lock, flags);
+
return 0;
}
-int iwl_hw_get_rx_read(struct iwl_priv *priv)
+int iwl3945_hw_get_rx_read(struct iwl3945_priv *priv)
{
- struct iwl_shared *shared_data =
- (struct iwl_shared *)priv->hw_setting.shared_virt;
+ struct iwl3945_shared *shared_data = priv->hw_setting.shared_virt;
- return shared_data->rx_read_ptr[0];
+ return le32_to_cpu(shared_data->rx_read_ptr[0]);
}
/**
* iwl3945_init_hw_rate_table - Initialize the hardware rate fallback table
*/
-int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
+int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv)
{
- int rc, i;
- struct iwl_rate_scaling_cmd rate_cmd = {
+ int rc, i, index, prev_index;
+ struct iwl3945_rate_scaling_cmd rate_cmd = {
.reserved = {0, 0, 0},
};
- struct iwl_rate_scaling_info *table = rate_cmd.table;
+ struct iwl3945_rate_scaling_info *table = rate_cmd.table;
+
+ for (i = 0; i < ARRAY_SIZE(iwl3945_rates); i++) {
+ index = iwl3945_rates[i].table_rs_index;
- for (i = 0; i < GLOBAL_ARRAY_SIZE(iwl_rates); i++) {
- table[i].rate_n_flags = iwl_rates[i].plcp;
- table[i].try_cnt = priv->retry_rate;
- table[i].next_rate_index = iwl_get_prev_ieee_rate(i);
+ table[index].rate_n_flags =
+ iwl3945_hw_set_rate_n_flags(iwl3945_rates[i].plcp, 0);
+ table[index].try_cnt = priv->retry_rate;
+ prev_index = iwl3945_get_prev_ieee_rate(i);
+ table[index].next_rate_index = iwl3945_rates[prev_index].table_rs_index;
}
switch (priv->phymode) {
@@ -2135,26 +2170,26 @@ int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
IWL_DEBUG_RATE("Select A mode rate scale\n");
/* If one of the following CCK rates is used,
* have it fall back to the 6M OFDM rate */
- for (i = IWL_FIRST_CCK_RATE; i <= IWL_LAST_CCK_RATE; i++)
- table[i].next_rate_index = IWL_FIRST_OFDM_RATE;
+ for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++)
+ table[i].next_rate_index = iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
/* Don't fall back to CCK rates */
- table[IWL_RATE_12M_INDEX].next_rate_index = IWL_RATE_9M_INDEX;
+ table[IWL_RATE_12M_INDEX_TABLE].next_rate_index = IWL_RATE_9M_INDEX_TABLE;
/* Don't drop out of OFDM rates */
- table[IWL_FIRST_OFDM_RATE].next_rate_index =
- IWL_FIRST_OFDM_RATE;
+ table[IWL_RATE_6M_INDEX_TABLE].next_rate_index =
+ iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
break;
case MODE_IEEE80211B:
IWL_DEBUG_RATE("Select B mode rate scale\n");
/* If an OFDM rate is used, have it fall back to the
* 1M CCK rates */
- for (i = IWL_FIRST_OFDM_RATE; i <= IWL_LAST_OFDM_RATE; i++)
- table[i].next_rate_index = IWL_FIRST_CCK_RATE;
+ for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE; i++)
+ table[i].next_rate_index = iwl3945_rates[IWL_FIRST_CCK_RATE].table_rs_index;
/* CCK shouldn't fall back to OFDM... */
- table[IWL_RATE_11M_INDEX].next_rate_index = IWL_RATE_5M_INDEX;
+ table[IWL_RATE_11M_INDEX_TABLE].next_rate_index = IWL_RATE_5M_INDEX_TABLE;
break;
default:
@@ -2164,25 +2199,26 @@ int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
/* Update the rate scaling for control frame Tx */
rate_cmd.table_id = 0;
- rc = iwl_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
+ rc = iwl3945_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
&rate_cmd);
if (rc)
return rc;
/* Update the rate scaling for data frame Tx */
rate_cmd.table_id = 1;
- return iwl_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
+ return iwl3945_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
&rate_cmd);
}
-int iwl_hw_set_hw_setting(struct iwl_priv *priv)
+/* Called when initializing driver */
+int iwl3945_hw_set_hw_setting(struct iwl3945_priv *priv)
{
memset((void *)&priv->hw_setting, 0,
- sizeof(struct iwl_driver_hw_info));
+ sizeof(struct iwl3945_driver_hw_info));
priv->hw_setting.shared_virt =
pci_alloc_consistent(priv->pci_dev,
- sizeof(struct iwl_shared),
+ sizeof(struct iwl3945_shared),
&priv->hw_setting.shared_phys);
if (!priv->hw_setting.shared_virt) {
@@ -2192,77 +2228,84 @@ int iwl_hw_set_hw_setting(struct iwl_priv *priv)
}
priv->hw_setting.ac_queue_count = AC_NUM;
- priv->hw_setting.rx_buffer_size = IWL_RX_BUF_SIZE;
- priv->hw_setting.tx_cmd_len = sizeof(struct iwl_tx_cmd);
+ priv->hw_setting.rx_buf_size = IWL_RX_BUF_SIZE;
+ priv->hw_setting.max_pkt_size = 2342;
+ priv->hw_setting.tx_cmd_len = sizeof(struct iwl3945_tx_cmd);
priv->hw_setting.max_rxq_size = RX_QUEUE_SIZE;
priv->hw_setting.max_rxq_log = RX_QUEUE_SIZE_LOG;
- priv->hw_setting.cck_flag = 0;
+ priv->hw_setting.max_stations = IWL3945_STATION_COUNT;
+ priv->hw_setting.bcast_sta_id = IWL3945_BROADCAST_ID;
return 0;
}
-int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
- struct iwl_frame *frame, u16 rate)
+unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv,
+ struct iwl3945_frame *frame, u8 rate)
{
- struct iwl_tx_beacon_cmd *tx_beacon_cmd;
- int frame_size;
+ struct iwl3945_tx_beacon_cmd *tx_beacon_cmd;
+ unsigned int frame_size;
- tx_beacon_cmd = (struct iwl_tx_beacon_cmd *)&frame->u;
+ tx_beacon_cmd = (struct iwl3945_tx_beacon_cmd *)&frame->u;
memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
- tx_beacon_cmd->tx.sta_id = IWL_BROADCAST_ID;
- tx_beacon_cmd->tx.stop_time.life_time = 0xFFFFFFFF;
+ tx_beacon_cmd->tx.sta_id = IWL3945_BROADCAST_ID;
+ tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
- frame_size = iwl_fill_beacon_frame(priv,
+ frame_size = iwl3945_fill_beacon_frame(priv,
tx_beacon_cmd->frame,
- BROADCAST_ADDR,
+ iwl3945_broadcast_addr,
sizeof(frame->u) - sizeof(*tx_beacon_cmd));
- tx_beacon_cmd->tx.len = frame_size;
+ BUG_ON(frame_size > MAX_MPDU_SIZE);
+ tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
tx_beacon_cmd->tx.rate = rate;
tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK |
TX_CMD_FLG_TSF_MSK);
- /* supp_rates[0] == OFDM */
- tx_beacon_cmd->tx.supp_rates[0] = IWL_OFDM_BASIC_RATES_MASK;
-
- /* supp_rates[1] == CCK
- *
- * NOTE: IWL_*_RATES_MASK are not in the order that supp_rates
- * expects so we have to shift them around.
- *
- * supp_rates expects:
- * CCK rates are bit0..3
- *
- * However IWL_*_RATES_MASK has:
- * CCK rates are bit8..11
- */
+ /* supp_rates[0] == OFDM start at IWL_FIRST_OFDM_RATE*/
+ tx_beacon_cmd->tx.supp_rates[0] =
+ (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+
tx_beacon_cmd->tx.supp_rates[1] =
- (IWL_CCK_BASIC_RATES_MASK >> 8) & 0xF;
+ (IWL_CCK_BASIC_RATES_MASK & 0xF);
- return (sizeof(struct iwl_tx_beacon_cmd) + frame_size);
+ return (sizeof(struct iwl3945_tx_beacon_cmd) + frame_size);
}
-void iwl_hw_rx_handler_setup(struct iwl_priv *priv)
+void iwl3945_hw_rx_handler_setup(struct iwl3945_priv *priv)
{
priv->rx_handlers[REPLY_3945_RX] = iwl3945_rx_reply_rx;
}
-void iwl_hw_setup_deferred_work(struct iwl_priv *priv)
+void iwl3945_hw_setup_deferred_work(struct iwl3945_priv *priv)
{
INIT_WORK(&priv->thermal_periodic,
- iwl3945_bg_reg_txpower_periodic, priv);
+ iwl3945_bg_reg_txpower_periodic, priv);
}
-void iwl_hw_cancel_deferred_work(struct iwl_priv *priv)
+void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv)
{
cancel_delayed_work(&priv->thermal_periodic);
}
-struct pci_device_id iwl_hw_card_ids[] = {
- {0x8086, 0x4222, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x4227, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+struct pci_device_id iwl3945_hw_card_ids[] = {
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4222)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4227)},
{0}
};
-MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
+/*
+ * Clear the OWNER_MSK, to establish driver (instead of uCode running on
+ * embedded controller) as EEPROM reader; each read is a series of pulses
+ * to/from the EEPROM chip, not a single event, so even reads could conflict
+ * if they weren't arbitrated by some ownership mechanism. Here, the driver
+ * simply claims ownership, which should be safe when this function is called
+ * (i.e. before loading uCode!).
+ */
+inline int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv *priv)
+{
+ _iwl3945_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
+ return 0;
+}
+
+MODULE_DEVICE_TABLE(pci, iwl3945_hw_card_ids);
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index f99a49b..5ac46c9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -23,33 +23,967 @@
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
+/*
+ * Please use this file (iwl-3945.h) for driver implementation definitions.
+ * Please use iwl-3945-commands.h for uCode API definitions.
+ * Please use iwl-3945-hw.h for hardware-related definitions.
+ */
#ifndef __iwl_3945_h__
#define __iwl_3945_h__
-#if IWL != 3945
+#include <linux/pci.h> /* for struct pci_device_id */
+#include <linux/kernel.h>
+#include <net/ieee80211_radiotap.h>
+
+/* Hardware specific file defines the PCI IDs table for that hardware module */
+extern struct pci_device_id iwl3945_hw_card_ids[];
+
+#define DRV_NAME "iwl3945"
+#include "iwl-3945-hw.h"
+#include "iwl-prph.h"
+#include "iwl-3945-debug.h"
+
+/* Default noise level to report when noise measurement is not available.
+ * This may be because we're:
+ * 1) Not associated (4965, no beacon statistics being sent to driver)
+ * 2) Scanning (noise measurement does not apply to associated channel)
+ * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
+ * Use default noise value of -127 ... this is below the range of measurable
+ * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
+ * Also, -127 works better than 0 when averaging frames with/without
+ * noise info (e.g. averaging might be done in app); measured dBm values are
+ * always negative ... using a negative value as the default keeps all
+ * averages within an s8's (used in some apps) range of negative values. */
+#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
+
+/* Module parameters accessible from iwl-*.c */
+extern int iwl3945_param_hwcrypto;
+extern int iwl3945_param_queues_num;
+
+enum iwl3945_antenna {
+ IWL_ANTENNA_DIVERSITY,
+ IWL_ANTENNA_MAIN,
+ IWL_ANTENNA_AUX
+};
+
+/*
+ * RTS threshold here is total size [2347] minus 4 FCS bytes
+ * Per spec:
+ * a value of 0 means RTS on all data/management packets
+ * a value > max MSDU size means no RTS
+ * else RTS for data/management frames where MPDU is larger
+ * than RTS value.
+ */
+#define IWL_RX_BUF_SIZE 3000U
+#define DEFAULT_RTS_THRESHOLD 2347U
+#define MIN_RTS_THRESHOLD 0U
+#define MAX_RTS_THRESHOLD 2347U
+#define MAX_MSDU_SIZE 2304U
+#define MAX_MPDU_SIZE 2346U
+#define DEFAULT_BEACON_INTERVAL 100U
+#define DEFAULT_SHORT_RETRY_LIMIT 7U
+#define DEFAULT_LONG_RETRY_LIMIT 4U
+
+struct iwl3945_rx_mem_buffer {
+ dma_addr_t dma_addr;
+ struct sk_buff *skb;
+ struct list_head list;
+};
+
+struct iwl3945_rt_rx_hdr {
+ struct ieee80211_radiotap_header rt_hdr;
+ __le64 rt_tsf; /* TSF */
+ u8 rt_flags; /* radiotap packet flags */
+ u8 rt_rate; /* rate in 500kb/s */
+ __le16 rt_channelMHz; /* channel in MHz */
+ __le16 rt_chbitmask; /* channel bitfield */
+ s8 rt_dbmsignal; /* signal in dBm, kluged to signed */
+ s8 rt_dbmnoise;
+ u8 rt_antenna; /* antenna number */
+ u8 payload[0]; /* payload... */
+} __attribute__ ((packed));
+
+struct iwl3945_rt_tx_hdr {
+ struct ieee80211_radiotap_header rt_hdr;
+ u8 rt_rate; /* rate in 500kb/s */
+ __le16 rt_channel; /* channel in mHz */
+ __le16 rt_chbitmask; /* channel bitfield */
+ s8 rt_dbmsignal; /* signal in dBm, kluged to signed */
+ u8 rt_antenna; /* antenna number */
+ u8 payload[0]; /* payload... */
+} __attribute__ ((packed));
+
+/*
+ * Generic queue structure
+ *
+ * Contains common data for Rx and Tx queues
+ */
+struct iwl3945_queue {
+ int n_bd; /* number of BDs in this queue */
+ int write_ptr; /* 1-st empty entry (index) host_w*/
+ int read_ptr; /* last used entry (index) host_r*/
+ dma_addr_t dma_addr; /* physical addr for BD's */
+ int n_window; /* safe queue window */
+ u32 id;
+ int low_mark; /* low watermark, resume queue if free
+ * space more than this */
+ int high_mark; /* high watermark, stop queue if free
+ * space less than this */
+} __attribute__ ((packed));
+
+#define MAX_NUM_OF_TBS (20)
+
+/* One for each TFD */
+struct iwl3945_tx_info {
+ struct ieee80211_tx_status status;
+ struct sk_buff *skb[MAX_NUM_OF_TBS];
+};
+
+/**
+ * struct iwl3945_tx_queue - Tx Queue for DMA
+ * @q: generic Rx/Tx queue descriptor
+ * @bd: base of circular buffer of TFDs
+ * @cmd: array of command/Tx buffers
+ * @dma_addr_cmd: physical address of cmd/tx buffer array
+ * @txb: array of per-TFD driver data
+ * @need_update: indicates need to update read/write index
+ *
+ * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
+ * descriptors) and required locking structures.
+ */
+struct iwl3945_tx_queue {
+ struct iwl3945_queue q;
+ struct iwl3945_tfd_frame *bd;
+ struct iwl3945_cmd *cmd;
+ dma_addr_t dma_addr_cmd;
+ struct iwl3945_tx_info *txb;
+ int need_update;
+ int active;
+};
+
+#define IWL_NUM_SCAN_RATES (2)
+
+struct iwl3945_channel_tgd_info {
+ u8 type;
+ s8 max_power;
+};
+
+struct iwl3945_channel_tgh_info {
+ s64 last_radar_time;
+};
+
+/* current Tx power values to use, one for each rate for each channel.
+ * requested power is limited by:
+ * -- regulatory EEPROM limits for this channel
+ * -- hardware capabilities (clip-powers)
+ * -- spectrum management
+ * -- user preference (e.g. iwconfig)
+ * when requested power is set, base power index must also be set. */
+struct iwl3945_channel_power_info {
+ struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
+ s8 power_table_index; /* actual (compenst'd) index into gain table */
+ s8 base_power_index; /* gain index for power at factory temp. */
+ s8 requested_power; /* power (dBm) requested for this chnl/rate */
+};
+
+/* current scan Tx power values to use, one for each scan rate for each
+ * channel. */
+struct iwl3945_scan_power_info {
+ struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
+ s8 power_table_index; /* actual (compenst'd) index into gain table */
+ s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
+};
+
+/*
+ * One for each channel, holds all channel setup data
+ * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
+ * with one another!
+ */
+#define IWL4965_MAX_RATE (33)
+
+struct iwl3945_channel_info {
+ struct iwl3945_channel_tgd_info tgd;
+ struct iwl3945_channel_tgh_info tgh;
+ struct iwl3945_eeprom_channel eeprom; /* EEPROM regulatory limit */
+ struct iwl3945_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
+ * FAT channel */
+
+ u8 channel; /* channel number */
+ u8 flags; /* flags copied from EEPROM */
+ s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
+ s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
+ s8 min_power; /* always 0 */
+ s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
+
+ u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
+ u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
+ u8 phymode; /* MODE_IEEE80211{A,B,G} */
+
+ /* Radio/DSP gain settings for each "normal" data Tx rate.
+ * These include, in addition to RF and DSP gain, a few fields for
+ * remembering/modifying gain settings (indexes). */
+ struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
+
+ /* Radio/DSP gain settings for each scan rate, for directed scans. */
+ struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
+};
+
+struct iwl3945_clip_group {
+ /* maximum power level to prevent clipping for each rate, derived by
+ * us from this band's saturation power in EEPROM */
+ const s8 clip_powers[IWL_MAX_RATES];
+};
+
+#include "iwl-3945-rs.h"
+
+#define IWL_TX_FIFO_AC0 0
+#define IWL_TX_FIFO_AC1 1
+#define IWL_TX_FIFO_AC2 2
+#define IWL_TX_FIFO_AC3 3
+#define IWL_TX_FIFO_HCCA_1 5
+#define IWL_TX_FIFO_HCCA_2 6
+#define IWL_TX_FIFO_NONE 7
+
+/* Minimum number of queues. MAX_NUM is defined in hw specific files */
+#define IWL_MIN_NUM_QUEUES 4
+
+/* Power management (not Tx power) structures */
+
+struct iwl3945_power_vec_entry {
+ struct iwl3945_powertable_cmd cmd;
+ u8 no_dtim;
+};
+#define IWL_POWER_RANGE_0 (0)
+#define IWL_POWER_RANGE_1 (1)
+
+#define IWL_POWER_MODE_CAM 0x00 /* Continuously Aware Mode, always on */
+#define IWL_POWER_INDEX_3 0x03
+#define IWL_POWER_INDEX_5 0x05
+#define IWL_POWER_AC 0x06
+#define IWL_POWER_BATTERY 0x07
+#define IWL_POWER_LIMIT 0x07
+#define IWL_POWER_MASK 0x0F
+#define IWL_POWER_ENABLED 0x10
+#define IWL_POWER_LEVEL(x) ((x) & IWL_POWER_MASK)
+
+struct iwl3945_power_mgr {
+ spinlock_t lock;
+ struct iwl3945_power_vec_entry pwr_range_0[IWL_POWER_AC];
+ struct iwl3945_power_vec_entry pwr_range_1[IWL_POWER_AC];
+ u8 active_index;
+ u32 dtim_val;
+};
+
+#define IEEE80211_DATA_LEN 2304
+#define IEEE80211_4ADDR_LEN 30
+#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
+#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
+
+struct iwl3945_frame {
+ union {
+ struct ieee80211_hdr frame;
+ struct iwl3945_tx_beacon_cmd beacon;
+ u8 raw[IEEE80211_FRAME_LEN];
+ u8 cmd[360];
+ } u;
+ struct list_head list;
+};
+
+#define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf)
+#define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8)
+#define SEQ_TO_INDEX(x) (x & 0xff)
+#define INDEX_TO_SEQ(x) (x & 0xff)
+#define SEQ_HUGE_FRAME (0x4000)
+#define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
+#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
+#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
+#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
+
+enum {
+ /* CMD_SIZE_NORMAL = 0, */
+ CMD_SIZE_HUGE = (1 << 0),
+ /* CMD_SYNC = 0, */
+ CMD_ASYNC = (1 << 1),
+ /* CMD_NO_SKB = 0, */
+ CMD_WANT_SKB = (1 << 2),
+};
+
+struct iwl3945_cmd;
+struct iwl3945_priv;
+
+struct iwl3945_cmd_meta {
+ struct iwl3945_cmd_meta *source;
+ union {
+ struct sk_buff *skb;
+ int (*callback)(struct iwl3945_priv *priv,
+ struct iwl3945_cmd *cmd, struct sk_buff *skb);
+ } __attribute__ ((packed)) u;
+
+ /* The CMD_SIZE_HUGE flag bit indicates that the command
+ * structure is stored at the end of the shared queue memory. */
+ u32 flags;
+
+} __attribute__ ((packed));
+
+/**
+ * struct iwl3945_cmd
+ *
+ * For allocation of the command and tx queues, this establishes the overall
+ * size of the largest command we send to uCode, except for a scan command
+ * (which is relatively huge; space is allocated separately).
+ */
+struct iwl3945_cmd {
+ struct iwl3945_cmd_meta meta;
+ struct iwl3945_cmd_header hdr;
+ union {
+ struct iwl3945_addsta_cmd addsta;
+ struct iwl3945_led_cmd led;
+ u32 flags;
+ u8 val8;
+ u16 val16;
+ u32 val32;
+ struct iwl3945_bt_cmd bt;
+ struct iwl3945_rxon_time_cmd rxon_time;
+ struct iwl3945_powertable_cmd powertable;
+ struct iwl3945_qosparam_cmd qosparam;
+ struct iwl3945_tx_cmd tx;
+ struct iwl3945_tx_beacon_cmd tx_beacon;
+ struct iwl3945_rxon_assoc_cmd rxon_assoc;
+ u8 *indirect;
+ u8 payload[360];
+ } __attribute__ ((packed)) cmd;
+} __attribute__ ((packed));
+
+struct iwl3945_host_cmd {
+ u8 id;
+ u16 len;
+ struct iwl3945_cmd_meta meta;
+ const void *data;
+};
+
+#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl3945_cmd) - \
+ sizeof(struct iwl3945_cmd_meta))
+
+/*
+ * RX related structures and functions
+ */
+#define RX_FREE_BUFFERS 64
+#define RX_LOW_WATERMARK 8
+
+#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
+#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
+#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
+
+/**
+ * struct iwl3945_rx_queue - Rx queue
+ * @processed: Internal index to last handled Rx packet
+ * @read: Shared index to newest available Rx buffer
+ * @write: Shared index to oldest written Rx packet
+ * @free_count: Number of pre-allocated buffers in rx_free
+ * @rx_free: list of free SKBs for use
+ * @rx_used: List of Rx buffers with no SKB
+ * @need_update: flag to indicate we need to update read/write index
+ *
+ * NOTE: rx_free and rx_used are used as a FIFO for iwl3945_rx_mem_buffers
+ */
+struct iwl3945_rx_queue {
+ __le32 *bd;
+ dma_addr_t dma_addr;
+ struct iwl3945_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
+ struct iwl3945_rx_mem_buffer *queue[RX_QUEUE_SIZE];
+ u32 processed;
+ u32 read;
+ u32 write;
+ u32 free_count;
+ struct list_head rx_free;
+ struct list_head rx_used;
+ int need_update;
+ spinlock_t lock;
+};
+
+#define IWL_SUPPORTED_RATES_IE_LEN 8
+
+#define SCAN_INTERVAL 100
+
+#define MAX_A_CHANNELS 252
+#define MIN_A_CHANNELS 7
+
+#define MAX_B_CHANNELS 14
+#define MIN_B_CHANNELS 1
+
+#define STATUS_HCMD_ACTIVE 0 /* host command in progress */
+#define STATUS_INT_ENABLED 1
+#define STATUS_RF_KILL_HW 2
+#define STATUS_RF_KILL_SW 3
+#define STATUS_INIT 4
+#define STATUS_ALIVE 5
+#define STATUS_READY 6
+#define STATUS_TEMPERATURE 7
+#define STATUS_GEO_CONFIGURED 8
+#define STATUS_EXIT_PENDING 9
+#define STATUS_IN_SUSPEND 10
+#define STATUS_STATISTICS 11
+#define STATUS_SCANNING 12
+#define STATUS_SCAN_ABORTING 13
+#define STATUS_SCAN_HW 14
+#define STATUS_POWER_PMI 15
+#define STATUS_FW_ERROR 16
+
+#define MAX_TID_COUNT 9
+
+#define IWL_INVALID_RATE 0xFF
+#define IWL_INVALID_VALUE -1
+
+struct iwl3945_tid_data {
+ u16 seq_number;
+};
+
+struct iwl3945_hw_key {
+ enum ieee80211_key_alg alg;
+ int keylen;
+ u8 key[32];
+};
+
+union iwl3945_ht_rate_supp {
+ u16 rates;
+ struct {
+ u8 siso_rate;
+ u8 mimo_rate;
+ };
+};
+
+#ifdef CONFIG_IWL3945_QOS
+
+union iwl3945_qos_capabity {
+ struct {
+ u8 edca_count:4; /* bit 0-3 */
+ u8 q_ack:1; /* bit 4 */
+ u8 queue_request:1; /* bit 5 */
+ u8 txop_request:1; /* bit 6 */
+ u8 reserved:1; /* bit 7 */
+ } q_AP;
+ struct {
+ u8 acvo_APSD:1; /* bit 0 */
+ u8 acvi_APSD:1; /* bit 1 */
+ u8 ac_bk_APSD:1; /* bit 2 */
+ u8 ac_be_APSD:1; /* bit 3 */
+ u8 q_ack:1; /* bit 4 */
+ u8 max_len:2; /* bit 5-6 */
+ u8 more_data_ack:1; /* bit 7 */
+ } q_STA;
+ u8 val;
+};
+
+/* QoS structures */
+struct iwl3945_qos_info {
+ int qos_enable;
+ int qos_active;
+ union iwl3945_qos_capabity qos_cap;
+ struct iwl3945_qosparam_cmd def_qos_parm;
+};
+#endif /*CONFIG_IWL3945_QOS */
+
+#define STA_PS_STATUS_WAKE 0
+#define STA_PS_STATUS_SLEEP 1
+
+struct iwl3945_station_entry {
+ struct iwl3945_addsta_cmd sta;
+ struct iwl3945_tid_data tid[MAX_TID_COUNT];
+ union {
+ struct {
+ u8 rate;
+ u8 flags;
+ } s;
+ u16 rate_n_flags;
+ } current_rate;
+ u8 used;
+ u8 ps_status;
+ struct iwl3945_hw_key keyinfo;
+};
+
+/* one for each uCode image (inst/data, boot/init/runtime) */
+struct fw_desc {
+ void *v_addr; /* access by driver */
+ dma_addr_t p_addr; /* access by card's busmaster DMA */
+ u32 len; /* bytes */
+};
+
+/* uCode file layout */
+struct iwl3945_ucode {
+ __le32 ver; /* major/minor/subminor */
+ __le32 inst_size; /* bytes of runtime instructions */
+ __le32 data_size; /* bytes of runtime data */
+ __le32 init_size; /* bytes of initialization instructions */
+ __le32 init_data_size; /* bytes of initialization data */
+ __le32 boot_size; /* bytes of bootstrap instructions */
+ u8 data[0]; /* data in same order as "size" elements */
+};
+
+#define IWL_IBSS_MAC_HASH_SIZE 32
+
+struct iwl3945_ibss_seq {
+ u8 mac[ETH_ALEN];
+ u16 seq_num;
+ u16 frag_num;
+ unsigned long packet_time;
+ struct list_head list;
+};
+
+/**
+ * struct iwl4965_driver_hw_info
+ * @max_txq_num: Max # Tx queues supported
+ * @ac_queue_count: # Tx queues for EDCA Access Categories (AC)
+ * @tx_cmd_len: Size of Tx command (but not including frame itself)
+ * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
+ * @rx_buf_size:
+ * @max_pkt_size:
+ * @max_rxq_log: Log-base-2 of max_rxq_size
+ * @max_stations:
+ * @bcast_sta_id:
+ * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
+ * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
+ */
+struct iwl3945_driver_hw_info {
+ u16 max_txq_num;
+ u16 ac_queue_count;
+ u16 tx_cmd_len;
+ u16 max_rxq_size;
+ u32 rx_buf_size;
+ u32 max_pkt_size;
+ u16 max_rxq_log;
+ u8 max_stations;
+ u8 bcast_sta_id;
+ void *shared_virt;
+ dma_addr_t shared_phys;
+};
+
+#define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
+ x->u.rx_frame.stats.payload + \
+ x->u.rx_frame.stats.phy_count))
+#define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
+ IWL_RX_HDR(x)->payload + \
+ le16_to_cpu(IWL_RX_HDR(x)->len)))
+#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
+#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
+
+
+/******************************************************************************
+ *
+ * Functions implemented in iwl-base.c which are forward declared here
+ * for use by iwl-*.c
+ *
+ *****************************************************************************/
+struct iwl3945_addsta_cmd;
+extern int iwl3945_send_add_station(struct iwl3945_priv *priv,
+ struct iwl3945_addsta_cmd *sta, u8 flags);
+extern u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *bssid,
+ int is_ap, u8 flags);
+extern int iwl3945_is_network_packet(struct iwl3945_priv *priv,
+ struct ieee80211_hdr *header);
+extern int iwl3945_power_init_handle(struct iwl3945_priv *priv);
+extern int iwl3945_eeprom_init(struct iwl3945_priv *priv);
+#ifdef CONFIG_IWL3945_DEBUG
+extern void iwl3945_report_frame(struct iwl3945_priv *priv,
+ struct iwl3945_rx_packet *pkt,
+ struct ieee80211_hdr *header, int group100);
+#else
+static inline void iwl3945_report_frame(struct iwl3945_priv *priv,
+ struct iwl3945_rx_packet *pkt,
+ struct ieee80211_hdr *header,
+ int group100) {}
+#endif
+extern void iwl3945_handle_data_packet_monitor(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb,
+ void *data, short len,
+ struct ieee80211_rx_status *stats,
+ u16 phy_flags);
+extern int iwl3945_is_duplicate_packet(struct iwl3945_priv *priv,
+ struct ieee80211_hdr *header);
+extern int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv);
+extern void iwl3945_rx_queue_reset(struct iwl3945_priv *priv,
+ struct iwl3945_rx_queue *rxq);
+extern int iwl3945_calc_db_from_ratio(int sig_ratio);
+extern int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm);
+extern int iwl3945_tx_queue_init(struct iwl3945_priv *priv,
+ struct iwl3945_tx_queue *txq, int count, u32 id);
+extern void iwl3945_rx_replenish(void *data);
+extern void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
+extern int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len,
+ const void *data);
+extern int __must_check iwl3945_send_cmd(struct iwl3945_priv *priv,
+ struct iwl3945_host_cmd *cmd);
+extern unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv,
+ struct ieee80211_hdr *hdr,
+ const u8 *dest, int left);
+extern int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv,
+ struct iwl3945_rx_queue *q);
+extern int iwl3945_send_statistics_request(struct iwl3945_priv *priv);
+extern void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb,
+ u32 decrypt_res,
+ struct ieee80211_rx_status *stats);
+extern const u8 iwl3945_broadcast_addr[ETH_ALEN];
+
/*
- * In non IWL == 3945 builds, these must build to nothing in order to allow
- * the common code to not have several #if IWL == XXXX / #endif blocks
- */
-static inline int iwl3945_get_antenna_flags(const struct iwl_priv *priv)
-{ return 0; }
-static inline int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
-{ return 0; }
-static inline void iwl3945_reg_txpower_periodic(struct iwl_priv *priv) {}
-static inline void iwl3945_bg_reg_txpower_periodic(void *p)
-{}
-static inline int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
-{ return 0; }
-#else /* IWL == 3945 */
+ * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
+ * call this... todo... fix that.
+*/
+extern u8 iwl3945_sync_station(struct iwl3945_priv *priv, int sta_id,
+ u16 tx_rate, u8 flags);
+
+/******************************************************************************
+ *
+ * Functions implemented in iwl-[34]*.c which are forward declared here
+ * for use by iwl-base.c
+ *
+ * NOTE: The implementation of these functions are hardware specific
+ * which is why they are in the hardware specific files (vs. iwl-base.c)
+ *
+ * Naming convention --
+ * iwl3945_ <-- Its part of iwlwifi (should be changed to iwl3945_)
+ * iwl3945_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
+ * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
+ * iwl3945_bg_ <-- Called from work queue context
+ * iwl3945_mac_ <-- mac80211 callback
+ *
+ ****************************************************************************/
+extern void iwl3945_hw_rx_handler_setup(struct iwl3945_priv *priv);
+extern void iwl3945_hw_setup_deferred_work(struct iwl3945_priv *priv);
+extern void iwl3945_hw_cancel_deferred_work(struct iwl3945_priv *priv);
+extern int iwl3945_hw_rxq_stop(struct iwl3945_priv *priv);
+extern int iwl3945_hw_set_hw_setting(struct iwl3945_priv *priv);
+extern int iwl3945_hw_nic_init(struct iwl3945_priv *priv);
+extern int iwl3945_hw_nic_stop_master(struct iwl3945_priv *priv);
+extern void iwl3945_hw_txq_ctx_free(struct iwl3945_priv *priv);
+extern void iwl3945_hw_txq_ctx_stop(struct iwl3945_priv *priv);
+extern int iwl3945_hw_nic_reset(struct iwl3945_priv *priv);
+extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl3945_priv *priv, void *tfd,
+ dma_addr_t addr, u16 len);
+extern int iwl3945_hw_txq_free_tfd(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq);
+extern int iwl3945_hw_get_temperature(struct iwl3945_priv *priv);
+extern int iwl3945_hw_tx_queue_init(struct iwl3945_priv *priv,
+ struct iwl3945_tx_queue *txq);
+extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl3945_priv *priv,
+ struct iwl3945_frame *frame, u8 rate);
+extern int iwl3945_hw_get_rx_read(struct iwl3945_priv *priv);
+extern void iwl3945_hw_build_tx_cmd_rate(struct iwl3945_priv *priv,
+ struct iwl3945_cmd *cmd,
+ struct ieee80211_tx_control *ctrl,
+ struct ieee80211_hdr *hdr,
+ int sta_id, int tx_id);
+extern int iwl3945_hw_reg_send_txpower(struct iwl3945_priv *priv);
+extern int iwl3945_hw_reg_set_txpower(struct iwl3945_priv *priv, s8 power);
+extern void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb);
+extern void iwl3945_disable_events(struct iwl3945_priv *priv);
+extern int iwl4965_get_temperature(const struct iwl3945_priv *priv);
+
+/**
+ * iwl3945_hw_find_station - Find station id for a given BSSID
+ * @bssid: MAC address of station ID to find
+ *
+ * NOTE: This should not be hardware specific but the code has
+ * not yet been merged into a single common layer for managing the
+ * station tables.
+ */
+extern u8 iwl3945_hw_find_station(struct iwl3945_priv *priv, const u8 *bssid);
+
+extern int iwl3945_hw_channel_switch(struct iwl3945_priv *priv, u16 channel);
+
/*
- * Forward declare iwl-3945.c functions for base.c
- */
-extern int iwl3945_get_antenna_flags(const struct iwl_priv *priv);
-extern int iwl3945_init_hw_rate_table(struct iwl_priv *priv);
-extern void iwl3945_reg_txpower_periodic(struct iwl_priv *priv);
-extern void iwl3945_bg_reg_txpower_periodic(void *p);
-extern int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv);
-#endif /* IWL == 3945 */
+ * Forward declare iwl-3945.c functions for iwl-base.c
+ */
+extern int iwl3945_eeprom_acquire_semaphore(struct iwl3945_priv *priv);
+extern __le32 iwl3945_get_antenna_flags(const struct iwl3945_priv *priv);
+extern int iwl3945_init_hw_rate_table(struct iwl3945_priv *priv);
+extern void iwl3945_reg_txpower_periodic(struct iwl3945_priv *priv);
+extern int iwl3945_txpower_set_from_eeprom(struct iwl3945_priv *priv);
+extern u8 iwl3945_sync_sta(struct iwl3945_priv *priv, int sta_id,
+ u16 tx_rate, u8 flags);
+
+
+#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
+
+enum {
+ MEASUREMENT_READY = (1 << 0),
+ MEASUREMENT_ACTIVE = (1 << 1),
+};
+
+#endif
+
+struct iwl3945_priv {
+
+ /* ieee device used by generic ieee processing code */
+ struct ieee80211_hw *hw;
+ struct ieee80211_channel *ieee_channels;
+ struct ieee80211_rate *ieee_rates;
+ struct ieee80211_conf *cache_conf;
+
+ /* temporary frame storage list */
+ struct list_head free_frames;
+ int frames_count;
+
+ u8 phymode;
+ int alloc_rxb_skb;
+
+ void (*rx_handlers[REPLY_MAX])(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb);
+
+ const struct ieee80211_hw_mode *modes;
+
+#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
+ /* spectrum measurement report caching */
+ struct iwl3945_spectrum_notification measure_report;
+ u8 measurement_status;
+#endif
+ /* ucode beacon time */
+ u32 ucode_beacon_time;
+
+ /* we allocate array of iwl3945_channel_info for NIC's valid channels.
+ * Access via channel # using indirect index array */
+ struct iwl3945_channel_info *channel_info; /* channel info array */
+ u8 channel_count; /* # of channels */
+
+ /* each calibration channel group in the EEPROM has a derived
+ * clip setting for each rate. */
+ const struct iwl3945_clip_group clip_groups[5];
+
+ /* thermal calibration */
+ s32 temperature; /* degrees Kelvin */
+ s32 last_temperature;
+
+ /* Scan related variables */
+ unsigned long last_scan_jiffies;
+ unsigned long next_scan_jiffies;
+ unsigned long scan_start;
+ unsigned long scan_pass_start;
+ unsigned long scan_start_tsf;
+ int scan_bands;
+ int one_direct_scan;
+ u8 direct_ssid_len;
+ u8 direct_ssid[IW_ESSID_MAX_SIZE];
+ struct iwl3945_scan_cmd *scan;
+ u8 only_active_channel;
+
+ /* spinlock */
+ spinlock_t lock; /* protect general shared data */
+ spinlock_t hcmd_lock; /* protect hcmd */
+ struct mutex mutex;
+
+ /* basic pci-network driver stuff */
+ struct pci_dev *pci_dev;
+
+ /* pci hardware address support */
+ void __iomem *hw_base;
+
+ /* uCode images, save to reload in case of failure */
+ struct fw_desc ucode_code; /* runtime inst */
+ struct fw_desc ucode_data; /* runtime data original */
+ struct fw_desc ucode_data_backup; /* runtime data save/restore */
+ struct fw_desc ucode_init; /* initialization inst */
+ struct fw_desc ucode_init_data; /* initialization data */
+ struct fw_desc ucode_boot; /* bootstrap inst */
+
+
+ struct iwl3945_rxon_time_cmd rxon_timing;
+
+ /* We declare this const so it can only be
+ * changed via explicit cast within the
+ * routines that actually update the physical
+ * hardware */
+ const struct iwl3945_rxon_cmd active_rxon;
+ struct iwl3945_rxon_cmd staging_rxon;
+
+ int error_recovering;
+ struct iwl3945_rxon_cmd recovery_rxon;
+
+ /* 1st responses from initialize and runtime uCode images.
+ * 4965's initialize alive response contains some calibration data. */
+ struct iwl3945_init_alive_resp card_alive_init;
+ struct iwl3945_alive_resp card_alive;
+
+#ifdef LED
+ /* LED related variables */
+ struct iwl3945_activity_blink activity;
+ unsigned long led_packets;
+ int led_state;
+#endif
+
+ u16 active_rate;
+ u16 active_rate_basic;
+
+ u8 call_post_assoc_from_beacon;
+ u8 assoc_station_added;
+ /* Rate scaling data */
+ s8 data_retry_limit;
+ u8 retry_rate;
+
+ wait_queue_head_t wait_command_queue;
+
+ int activity_timer_active;
+
+ /* Rx and Tx DMA processing queues */
+ struct iwl3945_rx_queue rxq;
+ struct iwl3945_tx_queue txq[IWL_MAX_NUM_QUEUES];
+
+ unsigned long status;
+ u32 config;
+
+ int last_rx_rssi; /* From Rx packet statisitics */
+ int last_rx_noise; /* From beacon statistics */
+
+ struct iwl3945_power_mgr power_data;
+
+ struct iwl3945_notif_statistics statistics;
+ unsigned long last_statistics_time;
+
+ /* context information */
+ u8 essid[IW_ESSID_MAX_SIZE];
+ u8 essid_len;
+ u16 rates_mask;
+
+ u32 power_mode;
+ u32 antenna;
+ u8 bssid[ETH_ALEN];
+ u16 rts_threshold;
+ u8 mac_addr[ETH_ALEN];
+
+ /*station table variables */
+ spinlock_t sta_lock;
+ int num_stations;
+ struct iwl3945_station_entry stations[IWL_STATION_COUNT];
+
+ /* Indication if ieee80211_ops->open has been called */
+ int is_open;
+
+ u8 mac80211_registered;
+ int is_abg;
+
+ u32 notif_missed_beacons;
+
+ /* Rx'd packet timing information */
+ u32 last_beacon_time;
+ u64 last_tsf;
+
+ /* Duplicate packet detection */
+ u16 last_seq_num;
+ u16 last_frag_num;
+ unsigned long last_packet_time;
+
+ /* Hash table for finding stations in IBSS network */
+ struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
+
+ /* eeprom */
+ struct iwl3945_eeprom eeprom;
+
+ int iw_mode;
+
+ struct sk_buff *ibss_beacon;
+
+ /* Last Rx'd beacon timestamp */
+ u32 timestamp0;
+ u32 timestamp1;
+ u16 beacon_int;
+ struct iwl3945_driver_hw_info hw_setting;
+ int interface_id;
+
+ /* Current association information needed to configure the
+ * hardware */
+ u16 assoc_id;
+ u16 assoc_capability;
+ u8 ps_mode;
+
+#ifdef CONFIG_IWL3945_QOS
+ struct iwl3945_qos_info qos_data;
+#endif /*CONFIG_IWL3945_QOS */
+
+ struct workqueue_struct *workqueue;
+
+ struct work_struct up;
+ struct work_struct restart;
+ struct work_struct calibrated_work;
+ struct work_struct scan_completed;
+ struct work_struct rx_replenish;
+ struct work_struct rf_kill;
+ struct work_struct abort_scan;
+ struct work_struct update_link_led;
+ struct work_struct auth_work;
+ struct work_struct report_work;
+ struct work_struct request_scan;
+ struct work_struct beacon_update;
+
+ struct tasklet_struct irq_tasklet;
+
+ struct work_struct init_alive_start;
+ struct work_struct alive_start;
+ struct work_struct activity_timer;
+ struct work_struct thermal_periodic;
+ struct work_struct gather_stats;
+ struct work_struct scan_check;
+ struct work_struct post_associate;
+
+#define IWL_DEFAULT_TX_POWER 0x0F
+ s8 user_txpower_limit;
+ s8 max_channel_txpower_limit;
+
+#ifdef CONFIG_PM
+ u32 pm_state[16];
+#endif
+
+#ifdef CONFIG_IWL3945_DEBUG
+ /* debugging info */
+ u32 framecnt_to_us;
+ atomic_t restrict_refcnt;
+#endif
+}; /*iwl3945_priv */
+
+static inline int iwl3945_is_associated(struct iwl3945_priv *priv)
+{
+ return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
+}
+
+static inline int is_channel_valid(const struct iwl3945_channel_info *ch_info)
+{
+ if (ch_info == NULL)
+ return 0;
+ return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
+}
+
+static inline int is_channel_narrow(const struct iwl3945_channel_info *ch_info)
+{
+ return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
+}
+
+static inline int is_channel_radar(const struct iwl3945_channel_info *ch_info)
+{
+ return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
+}
+
+static inline u8 is_channel_a_band(const struct iwl3945_channel_info *ch_info)
+{
+ return ch_info->phymode == MODE_IEEE80211A;
+}
+
+static inline u8 is_channel_bg_band(const struct iwl3945_channel_info *ch_info)
+{
+ return ((ch_info->phymode == MODE_IEEE80211B) ||
+ (ch_info->phymode == MODE_IEEE80211G));
+}
+
+static inline int is_channel_passive(const struct iwl3945_channel_info *ch)
+{
+ return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
+}
+
+static inline int is_channel_ibss(const struct iwl3945_channel_info *ch)
+{
+ return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
+}
+
+extern const struct iwl3945_channel_info *iwl3945_get_channel_info(
+ const struct iwl3945_priv *priv, int phymode, u16 channel);
+
+/* Requires full declaration of iwl3945_priv before including */
+#include "iwl-3945-io.h"
#endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-commands.h b/drivers/net/wireless/iwlwifi/iwl-4965-commands.h
new file mode 100644
index 0000000..7988c75
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-commands.h
@@ -0,0 +1,2562 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+/*
+ * Please use this file (iwl-4965-commands.h) only for uCode API definitions.
+ * Please use iwl-4965-hw.h for hardware-related definitions.
+ * Please use iwl-4965.h for driver implementation definitions.
+ */
+
+#ifndef __iwl4965_commands_h__
+#define __iwl4965_commands_h__
+
+enum {
+ REPLY_ALIVE = 0x1,
+ REPLY_ERROR = 0x2,
+
+ /* RXON and QOS commands */
+ REPLY_RXON = 0x10,
+ REPLY_RXON_ASSOC = 0x11,
+ REPLY_QOS_PARAM = 0x13,
+ REPLY_RXON_TIMING = 0x14,
+
+ /* Multi-Station support */
+ REPLY_ADD_STA = 0x18,
+ REPLY_REMOVE_STA = 0x19, /* not used */
+ REPLY_REMOVE_ALL_STA = 0x1a, /* not used */
+
+ /* RX, TX, LEDs */
+ REPLY_TX = 0x1c,
+ REPLY_RATE_SCALE = 0x47, /* 3945 only */
+ REPLY_LEDS_CMD = 0x48,
+ REPLY_TX_LINK_QUALITY_CMD = 0x4e, /* 4965 only */
+
+ /* 802.11h related */
+ RADAR_NOTIFICATION = 0x70, /* not used */
+ REPLY_QUIET_CMD = 0x71, /* not used */
+ REPLY_CHANNEL_SWITCH = 0x72,
+ CHANNEL_SWITCH_NOTIFICATION = 0x73,
+ REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74,
+ SPECTRUM_MEASURE_NOTIFICATION = 0x75,
+
+ /* Power Management */
+ POWER_TABLE_CMD = 0x77,
+ PM_SLEEP_NOTIFICATION = 0x7A,
+ PM_DEBUG_STATISTIC_NOTIFIC = 0x7B,
+
+ /* Scan commands and notifications */
+ REPLY_SCAN_CMD = 0x80,
+ REPLY_SCAN_ABORT_CMD = 0x81,
+ SCAN_START_NOTIFICATION = 0x82,
+ SCAN_RESULTS_NOTIFICATION = 0x83,
+ SCAN_COMPLETE_NOTIFICATION = 0x84,
+
+ /* IBSS/AP commands */
+ BEACON_NOTIFICATION = 0x90,
+ REPLY_TX_BEACON = 0x91,
+ WHO_IS_AWAKE_NOTIFICATION = 0x94, /* not used */
+
+ /* Miscellaneous commands */
+ QUIET_NOTIFICATION = 0x96, /* not used */
+ REPLY_TX_PWR_TABLE_CMD = 0x97,
+ MEASURE_ABORT_NOTIFICATION = 0x99, /* not used */
+
+ /* Bluetooth device coexistance config command */
+ REPLY_BT_CONFIG = 0x9b,
+
+ /* Statistics */
+ REPLY_STATISTICS_CMD = 0x9c,
+ STATISTICS_NOTIFICATION = 0x9d,
+
+ /* RF-KILL commands and notifications */
+ REPLY_CARD_STATE_CMD = 0xa0,
+ CARD_STATE_NOTIFICATION = 0xa1,
+
+ /* Missed beacons notification */
+ MISSED_BEACONS_NOTIFICATION = 0xa2,
+
+ REPLY_CT_KILL_CONFIG_CMD = 0xa4,
+ SENSITIVITY_CMD = 0xa8,
+ REPLY_PHY_CALIBRATION_CMD = 0xb0,
+ REPLY_RX_PHY_CMD = 0xc0,
+ REPLY_RX_MPDU_CMD = 0xc1,
+ REPLY_4965_RX = 0xc3,
+ REPLY_COMPRESSED_BA = 0xc5,
+ REPLY_MAX = 0xff
+};
+
+/******************************************************************************
+ * (0)
+ * Commonly used structures and definitions:
+ * Command header, rate_n_flags, txpower
+ *
+ *****************************************************************************/
+
+/* iwl4965_cmd_header flags value */
+#define IWL_CMD_FAILED_MSK 0x40
+
+/**
+ * struct iwl4965_cmd_header
+ *
+ * This header format appears in the beginning of each command sent from the
+ * driver, and each response/notification received from uCode.
+ */
+struct iwl4965_cmd_header {
+ u8 cmd; /* Command ID: REPLY_RXON, etc. */
+ u8 flags; /* IWL_CMD_* */
+ /*
+ * The driver sets up the sequence number to values of its chosing.
+ * uCode does not use this value, but passes it back to the driver
+ * when sending the response to each driver-originated command, so
+ * the driver can match the response to the command. Since the values
+ * don't get used by uCode, the driver may set up an arbitrary format.
+ *
+ * There is one exception: uCode sets bit 15 when it originates
+ * the response/notification, i.e. when the response/notification
+ * is not a direct response to a command sent by the driver. For
+ * example, uCode issues REPLY_3945_RX when it sends a received frame
+ * to the driver; it is not a direct response to any driver command.
+ *
+ * The Linux driver uses the following format:
+ *
+ * 0:7 index/position within Tx queue
+ * 8:13 Tx queue selection
+ * 14:14 driver sets this to indicate command is in the 'huge'
+ * storage at the end of the command buffers, i.e. scan cmd
+ * 15:15 uCode sets this in uCode-originated response/notification
+ */
+ __le16 sequence;
+
+ /* command or response/notification data follows immediately */
+ u8 data[0];
+} __attribute__ ((packed));
+
+/**
+ * 4965 rate_n_flags bit fields
+ *
+ * rate_n_flags format is used in following 4965 commands:
+ * REPLY_4965_RX (response only)
+ * REPLY_TX (both command and response)
+ * REPLY_TX_LINK_QUALITY_CMD
+ *
+ * High-throughput (HT) rate format for bits 7:0 (bit 8 must be "1"):
+ * 2-0: 0) 6 Mbps
+ * 1) 12 Mbps
+ * 2) 18 Mbps
+ * 3) 24 Mbps
+ * 4) 36 Mbps
+ * 5) 48 Mbps
+ * 6) 54 Mbps
+ * 7) 60 Mbps
+ *
+ * 3: 0) Single stream (SISO)
+ * 1) Dual stream (MIMO)
+ *
+ * 5: Value of 0x20 in bits 7:0 indicates 6 Mbps FAT duplicate data
+ *
+ * Legacy OFDM rate format for bits 7:0 (bit 8 must be "0", bit 9 "0"):
+ * 3-0: 0xD) 6 Mbps
+ * 0xF) 9 Mbps
+ * 0x5) 12 Mbps
+ * 0x7) 18 Mbps
+ * 0x9) 24 Mbps
+ * 0xB) 36 Mbps
+ * 0x1) 48 Mbps
+ * 0x3) 54 Mbps
+ *
+ * Legacy CCK rate format for bits 7:0 (bit 8 must be "0", bit 9 "1"):
+ * 3-0: 10) 1 Mbps
+ * 20) 2 Mbps
+ * 55) 5.5 Mbps
+ * 110) 11 Mbps
+ */
+#define RATE_MCS_CODE_MSK 0x7
+#define RATE_MCS_MIMO_POS 3
+#define RATE_MCS_MIMO_MSK 0x8
+#define RATE_MCS_HT_DUP_POS 5
+#define RATE_MCS_HT_DUP_MSK 0x20
+
+/* Bit 8: (1) HT format, (0) legacy format in bits 7:0 */
+#define RATE_MCS_FLAGS_POS 8
+#define RATE_MCS_HT_POS 8
+#define RATE_MCS_HT_MSK 0x100
+
+/* Bit 9: (1) CCK, (0) OFDM. HT (bit 8) must be "0" for this bit to be valid */
+#define RATE_MCS_CCK_POS 9
+#define RATE_MCS_CCK_MSK 0x200
+
+/* Bit 10: (1) Use Green Field preamble */
+#define RATE_MCS_GF_POS 10
+#define RATE_MCS_GF_MSK 0x400
+
+/* Bit 11: (1) Use 40Mhz FAT chnl width, (0) use 20 MHz legacy chnl width */
+#define RATE_MCS_FAT_POS 11
+#define RATE_MCS_FAT_MSK 0x800
+
+/* Bit 12: (1) Duplicate data on both 20MHz chnls. FAT (bit 11) must be set. */
+#define RATE_MCS_DUP_POS 12
+#define RATE_MCS_DUP_MSK 0x1000
+
+/* Bit 13: (1) Short guard interval (0.4 usec), (0) normal GI (0.8 usec) */
+#define RATE_MCS_SGI_POS 13
+#define RATE_MCS_SGI_MSK 0x2000
+
+/**
+ * rate_n_flags Tx antenna masks (4965 has 2 transmitters):
+ * bit14:15 01 B inactive, A active
+ * 10 B active, A inactive
+ * 11 Both active
+ */
+#define RATE_MCS_ANT_A_POS 14
+#define RATE_MCS_ANT_B_POS 15
+#define RATE_MCS_ANT_A_MSK 0x4000
+#define RATE_MCS_ANT_B_MSK 0x8000
+#define RATE_MCS_ANT_AB_MSK 0xc000
+
+
+/**
+ * struct iwl4965_tx_power - txpower format used in REPLY_SCAN_CMD
+ *
+ * Scan uses only one transmitter, so only one analog/dsp gain pair is needed.
+ */
+struct iwl4965_tx_power {
+ u8 tx_gain; /* gain for analog radio */
+ u8 dsp_atten; /* gain for DSP */
+} __attribute__ ((packed));
+
+#define POWER_TABLE_NUM_ENTRIES 33
+#define POWER_TABLE_NUM_HT_OFDM_ENTRIES 32
+#define POWER_TABLE_CCK_ENTRY 32
+
+/**
+ * union iwl4965_tx_power_dual_stream
+ *
+ * Host format used for REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
+ * Use __le32 version (struct tx_power_dual_stream) when building command.
+ *
+ * Driver provides radio gain and DSP attenuation settings to device in pairs,
+ * one value for each transmitter chain. The first value is for transmitter A,
+ * second for transmitter B.
+ *
+ * For SISO bit rates, both values in a pair should be identical.
+ * For MIMO rates, one value may be different from the other,
+ * in order to balance the Tx output between the two transmitters.
+ *
+ * See more details in doc for TXPOWER in iwl-4965-hw.h.
+ */
+union iwl4965_tx_power_dual_stream {
+ struct {
+ u8 radio_tx_gain[2];
+ u8 dsp_predis_atten[2];
+ } s;
+ u32 dw;
+};
+
+/**
+ * struct tx_power_dual_stream
+ *
+ * Table entries in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
+ *
+ * Same format as iwl_tx_power_dual_stream, but __le32
+ */
+struct tx_power_dual_stream {
+ __le32 dw;
+} __attribute__ ((packed));
+
+/**
+ * struct iwl4965_tx_power_db
+ *
+ * Entire table within REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
+ */
+struct iwl4965_tx_power_db {
+ struct tx_power_dual_stream power_tbl[POWER_TABLE_NUM_ENTRIES];
+} __attribute__ ((packed));
+
+
+/******************************************************************************
+ * (0a)
+ * Alive and Error Commands & Responses:
+ *
+ *****************************************************************************/
+
+#define UCODE_VALID_OK __constant_cpu_to_le32(0x1)
+#define INITIALIZE_SUBTYPE (9)
+
+/*
+ * ("Initialize") REPLY_ALIVE = 0x1 (response only, not a command)
+ *
+ * uCode issues this "initialize alive" notification once the initialization
+ * uCode image has completed its work, and is ready to load the runtime image.
+ * This is the *first* "alive" notification that the driver will receive after
+ * rebooting uCode; the "initialize" alive is indicated by subtype field == 9.
+ *
+ * See comments documenting "BSM" (bootstrap state machine).
+ *
+ * For 4965, this notification contains important calibration data for
+ * calculating txpower settings:
+ *
+ * 1) Power supply voltage indication. The voltage sensor outputs higher
+ * values for lower voltage, and vice versa.
+ *
+ * 2) Temperature measurement parameters, for each of two channel widths
+ * (20 MHz and 40 MHz) supported by the radios. Temperature sensing
+ * is done via one of the receiver chains, and channel width influences
+ * the results.
+ *
+ * 3) Tx gain compensation to balance 4965's 2 Tx chains for MIMO operation,
+ * for each of 5 frequency ranges.
+ */
+struct iwl4965_init_alive_resp {
+ u8 ucode_minor;
+ u8 ucode_major;
+ __le16 reserved1;
+ u8 sw_rev[8];
+ u8 ver_type;
+ u8 ver_subtype; /* "9" for initialize alive */
+ __le16 reserved2;
+ __le32 log_event_table_ptr;
+ __le32 error_event_table_ptr;
+ __le32 timestamp;
+ __le32 is_valid;
+
+ /* calibration values from "initialize" uCode */
+ __le32 voltage; /* signed, higher value is lower voltage */
+ __le32 therm_r1[2]; /* signed, 1st for normal, 2nd for FAT channel*/
+ __le32 therm_r2[2]; /* signed */
+ __le32 therm_r3[2]; /* signed */
+ __le32 therm_r4[2]; /* signed */
+ __le32 tx_atten[5][2]; /* signed MIMO gain comp, 5 freq groups,
+ * 2 Tx chains */
+} __attribute__ ((packed));
+
+
+/**
+ * REPLY_ALIVE = 0x1 (response only, not a command)
+ *
+ * uCode issues this "alive" notification once the runtime image is ready
+ * to receive commands from the driver. This is the *second* "alive"
+ * notification that the driver will receive after rebooting uCode;
+ * this "alive" is indicated by subtype field != 9.
+ *
+ * See comments documenting "BSM" (bootstrap state machine).
+ *
+ * This response includes two pointers to structures within the device's
+ * data SRAM (access via HBUS_TARG_MEM_* regs) that are useful for debugging:
+ *
+ * 1) log_event_table_ptr indicates base of the event log. This traces
+ * a 256-entry history of uCode execution within a circular buffer.
+ * Its header format is:
+ *
+ * __le32 log_size; log capacity (in number of entries)
+ * __le32 type; (1) timestamp with each entry, (0) no timestamp
+ * __le32 wraps; # times uCode has wrapped to top of circular buffer
+ * __le32 write_index; next circular buffer entry that uCode would fill
+ *
+ * The header is followed by the circular buffer of log entries. Entries
+ * with timestamps have the following format:
+ *
+ * __le32 event_id; range 0 - 1500
+ * __le32 timestamp; low 32 bits of TSF (of network, if associated)
+ * __le32 data; event_id-specific data value
+ *
+ * Entries without timestamps contain only event_id and data.
+ *
+ * 2) error_event_table_ptr indicates base of the error log. This contains
+ * information about any uCode error that occurs. For 4965, the format
+ * of the error log is:
+ *
+ * __le32 valid; (nonzero) valid, (0) log is empty
+ * __le32 error_id; type of error
+ * __le32 pc; program counter
+ * __le32 blink1; branch link
+ * __le32 blink2; branch link
+ * __le32 ilink1; interrupt link
+ * __le32 ilink2; interrupt link
+ * __le32 data1; error-specific data
+ * __le32 data2; error-specific data
+ * __le32 line; source code line of error
+ * __le32 bcon_time; beacon timer
+ * __le32 tsf_low; network timestamp function timer
+ * __le32 tsf_hi; network timestamp function timer
+ *
+ * The Linux driver can print both logs to the system log when a uCode error
+ * occurs.
+ */
+struct iwl4965_alive_resp {
+ u8 ucode_minor;
+ u8 ucode_major;
+ __le16 reserved1;
+ u8 sw_rev[8];
+ u8 ver_type;
+ u8 ver_subtype; /* not "9" for runtime alive */
+ __le16 reserved2;
+ __le32 log_event_table_ptr; /* SRAM address for event log */
+ __le32 error_event_table_ptr; /* SRAM address for error log */
+ __le32 timestamp;
+ __le32 is_valid;
+} __attribute__ ((packed));
+
+
+union tsf {
+ u8 byte[8];
+ __le16 word[4];
+ __le32 dw[2];
+};
+
+/*
+ * REPLY_ERROR = 0x2 (response only, not a command)
+ */
+struct iwl4965_error_resp {
+ __le32 error_type;
+ u8 cmd_id;
+ u8 reserved1;
+ __le16 bad_cmd_seq_num;
+ __le32 error_info;
+ union tsf timestamp;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (1)
+ * RXON Commands & Responses:
+ *
+ *****************************************************************************/
+
+/*
+ * Rx config defines & structure
+ */
+/* rx_config device types */
+enum {
+ RXON_DEV_TYPE_AP = 1,
+ RXON_DEV_TYPE_ESS = 3,
+ RXON_DEV_TYPE_IBSS = 4,
+ RXON_DEV_TYPE_SNIFFER = 6,
+};
+
+
+#define RXON_RX_CHAIN_DRIVER_FORCE_MSK __constant_cpu_to_le16(0x1<<0)
+#define RXON_RX_CHAIN_VALID_MSK __constant_cpu_to_le16(0x7<<1)
+#define RXON_RX_CHAIN_VALID_POS (1)
+#define RXON_RX_CHAIN_FORCE_SEL_MSK __constant_cpu_to_le16(0x7<<4)
+#define RXON_RX_CHAIN_FORCE_SEL_POS (4)
+#define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK __constant_cpu_to_le16(0x7<<7)
+#define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS (7)
+#define RXON_RX_CHAIN_CNT_MSK __constant_cpu_to_le16(0x3<<10)
+#define RXON_RX_CHAIN_CNT_POS (10)
+#define RXON_RX_CHAIN_MIMO_CNT_MSK __constant_cpu_to_le16(0x3<<12)
+#define RXON_RX_CHAIN_MIMO_CNT_POS (12)
+#define RXON_RX_CHAIN_MIMO_FORCE_MSK __constant_cpu_to_le16(0x1<<14)
+#define RXON_RX_CHAIN_MIMO_FORCE_POS (14)
+
+/* rx_config flags */
+/* band & modulation selection */
+#define RXON_FLG_BAND_24G_MSK __constant_cpu_to_le32(1 << 0)
+#define RXON_FLG_CCK_MSK __constant_cpu_to_le32(1 << 1)
+/* auto detection enable */
+#define RXON_FLG_AUTO_DETECT_MSK __constant_cpu_to_le32(1 << 2)
+/* TGg protection when tx */
+#define RXON_FLG_TGG_PROTECT_MSK __constant_cpu_to_le32(1 << 3)
+/* cck short slot & preamble */
+#define RXON_FLG_SHORT_SLOT_MSK __constant_cpu_to_le32(1 << 4)
+#define RXON_FLG_SHORT_PREAMBLE_MSK __constant_cpu_to_le32(1 << 5)
+/* antenna selection */
+#define RXON_FLG_DIS_DIV_MSK __constant_cpu_to_le32(1 << 7)
+#define RXON_FLG_ANT_SEL_MSK __constant_cpu_to_le32(0x0f00)
+#define RXON_FLG_ANT_A_MSK __constant_cpu_to_le32(1 << 8)
+#define RXON_FLG_ANT_B_MSK __constant_cpu_to_le32(1 << 9)
+/* radar detection enable */
+#define RXON_FLG_RADAR_DETECT_MSK __constant_cpu_to_le32(1 << 12)
+#define RXON_FLG_TGJ_NARROW_BAND_MSK __constant_cpu_to_le32(1 << 13)
+/* rx response to host with 8-byte TSF
+* (according to ON_AIR deassertion) */
+#define RXON_FLG_TSF2HOST_MSK __constant_cpu_to_le32(1 << 15)
+
+
+/* HT flags */
+#define RXON_FLG_CTRL_CHANNEL_LOC_POS (22)
+#define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK __constant_cpu_to_le32(0x1<<22)
+
+#define RXON_FLG_HT_OPERATING_MODE_POS (23)
+
+#define RXON_FLG_HT_PROT_MSK __constant_cpu_to_le32(0x1<<23)
+#define RXON_FLG_FAT_PROT_MSK __constant_cpu_to_le32(0x2<<23)
+
+#define RXON_FLG_CHANNEL_MODE_POS (25)
+#define RXON_FLG_CHANNEL_MODE_MSK __constant_cpu_to_le32(0x3<<25)
+#define RXON_FLG_CHANNEL_MODE_PURE_40_MSK __constant_cpu_to_le32(0x1<<25)
+#define RXON_FLG_CHANNEL_MODE_MIXED_MSK __constant_cpu_to_le32(0x2<<25)
+
+/* rx_config filter flags */
+/* accept all data frames */
+#define RXON_FILTER_PROMISC_MSK __constant_cpu_to_le32(1 << 0)
+/* pass control & management to host */
+#define RXON_FILTER_CTL2HOST_MSK __constant_cpu_to_le32(1 << 1)
+/* accept multi-cast */
+#define RXON_FILTER_ACCEPT_GRP_MSK __constant_cpu_to_le32(1 << 2)
+/* don't decrypt uni-cast frames */
+#define RXON_FILTER_DIS_DECRYPT_MSK __constant_cpu_to_le32(1 << 3)
+/* don't decrypt multi-cast frames */
+#define RXON_FILTER_DIS_GRP_DECRYPT_MSK __constant_cpu_to_le32(1 << 4)
+/* STA is associated */
+#define RXON_FILTER_ASSOC_MSK __constant_cpu_to_le32(1 << 5)
+/* transfer to host non bssid beacons in associated state */
+#define RXON_FILTER_BCON_AWARE_MSK __constant_cpu_to_le32(1 << 6)
+
+/**
+ * REPLY_RXON = 0x10 (command, has simple generic response)
+ *
+ * RXON tunes the radio tuner to a service channel, and sets up a number
+ * of parameters that are used primarily for Rx, but also for Tx operations.
+ *
+ * NOTE: When tuning to a new channel, driver must set the
+ * RXON_FILTER_ASSOC_MSK to 0. This will clear station-dependent
+ * info within the device, including the station tables, tx retry
+ * rate tables, and txpower tables. Driver must build a new station
+ * table and txpower table before transmitting anything on the RXON
+ * channel.
+ *
+ * NOTE: All RXONs wipe clean the internal txpower table. Driver must
+ * issue a new REPLY_TX_PWR_TABLE_CMD after each REPLY_RXON (0x10),
+ * regardless of whether RXON_FILTER_ASSOC_MSK is set.
+ */
+struct iwl4965_rxon_cmd {
+ u8 node_addr[6];
+ __le16 reserved1;
+ u8 bssid_addr[6];
+ __le16 reserved2;
+ u8 wlap_bssid_addr[6];
+ __le16 reserved3;
+ u8 dev_type;
+ u8 air_propagation;
+ __le16 rx_chain;
+ u8 ofdm_basic_rates;
+ u8 cck_basic_rates;
+ __le16 assoc_id;
+ __le32 flags;
+ __le32 filter_flags;
+ __le16 channel;
+ u8 ofdm_ht_single_stream_basic_rates;
+ u8 ofdm_ht_dual_stream_basic_rates;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_RXON_ASSOC = 0x11 (command, has simple generic response)
+ */
+struct iwl4965_rxon_assoc_cmd {
+ __le32 flags;
+ __le32 filter_flags;
+ u8 ofdm_basic_rates;
+ u8 cck_basic_rates;
+ u8 ofdm_ht_single_stream_basic_rates;
+ u8 ofdm_ht_dual_stream_basic_rates;
+ __le16 rx_chain_select_flags;
+ __le16 reserved;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_RXON_TIMING = 0x14 (command, has simple generic response)
+ */
+struct iwl4965_rxon_time_cmd {
+ union tsf timestamp;
+ __le16 beacon_interval;
+ __le16 atim_window;
+ __le32 beacon_init_val;
+ __le16 listen_interval;
+ __le16 reserved;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response)
+ */
+struct iwl4965_channel_switch_cmd {
+ u8 band;
+ u8 expect_beacon;
+ __le16 channel;
+ __le32 rxon_flags;
+ __le32 rxon_filter_flags;
+ __le32 switch_time;
+ struct iwl4965_tx_power_db tx_power;
+} __attribute__ ((packed));
+
+/*
+ * CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command)
+ */
+struct iwl4965_csa_notification {
+ __le16 band;
+ __le16 channel;
+ __le32 status; /* 0 - OK, 1 - fail */
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (2)
+ * Quality-of-Service (QOS) Commands & Responses:
+ *
+ *****************************************************************************/
+
+/**
+ * struct iwl_ac_qos -- QOS timing params for REPLY_QOS_PARAM
+ * One for each of 4 EDCA access categories in struct iwl_qosparam_cmd
+ *
+ * @cw_min: Contention window, start value in numbers of slots.
+ * Should be a power-of-2, minus 1. Device's default is 0x0f.
+ * @cw_max: Contention window, max value in numbers of slots.
+ * Should be a power-of-2, minus 1. Device's default is 0x3f.
+ * @aifsn: Number of slots in Arbitration Interframe Space (before
+ * performing random backoff timing prior to Tx). Device default 1.
+ * @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0.
+ *
+ * Device will automatically increase contention window by (2*CW) + 1 for each
+ * transmission retry. Device uses cw_max as a bit mask, ANDed with new CW
+ * value, to cap the CW value.
+ */
+struct iwl4965_ac_qos {
+ __le16 cw_min;
+ __le16 cw_max;
+ u8 aifsn;
+ u8 reserved1;
+ __le16 edca_txop;
+} __attribute__ ((packed));
+
+/* QoS flags defines */
+#define QOS_PARAM_FLG_UPDATE_EDCA_MSK __constant_cpu_to_le32(0x01)
+#define QOS_PARAM_FLG_TGN_MSK __constant_cpu_to_le32(0x02)
+#define QOS_PARAM_FLG_TXOP_TYPE_MSK __constant_cpu_to_le32(0x10)
+
+/* Number of Access Categories (AC) (EDCA), queues 0..3 */
+#define AC_NUM 4
+
+/*
+ * REPLY_QOS_PARAM = 0x13 (command, has simple generic response)
+ *
+ * This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs
+ * 0: Background, 1: Best Effort, 2: Video, 3: Voice.
+ */
+struct iwl4965_qosparam_cmd {
+ __le32 qos_flags;
+ struct iwl4965_ac_qos ac[AC_NUM];
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (3)
+ * Add/Modify Stations Commands & Responses:
+ *
+ *****************************************************************************/
+/*
+ * Multi station support
+ */
+
+/* Special, dedicated locations within device's station table */
+#define IWL_AP_ID 0
+#define IWL_MULTICAST_ID 1
+#define IWL_STA_ID 2
+#define IWL4965_BROADCAST_ID 31
+#define IWL4965_STATION_COUNT 32
+
+#define IWL_STATION_COUNT 32 /* MAX(3945,4965)*/
+#define IWL_INVALID_STATION 255
+
+#define STA_FLG_PWR_SAVE_MSK __constant_cpu_to_le32(1<<8);
+#define STA_FLG_RTS_MIMO_PROT_MSK __constant_cpu_to_le32(1 << 17)
+#define STA_FLG_AGG_MPDU_8US_MSK __constant_cpu_to_le32(1 << 18)
+#define STA_FLG_MAX_AGG_SIZE_POS (19)
+#define STA_FLG_MAX_AGG_SIZE_MSK __constant_cpu_to_le32(3 << 19)
+#define STA_FLG_FAT_EN_MSK __constant_cpu_to_le32(1 << 21)
+#define STA_FLG_MIMO_DIS_MSK __constant_cpu_to_le32(1 << 22)
+#define STA_FLG_AGG_MPDU_DENSITY_POS (23)
+#define STA_FLG_AGG_MPDU_DENSITY_MSK __constant_cpu_to_le32(7 << 23)
+
+/* Use in mode field. 1: modify existing entry, 0: add new station entry */
+#define STA_CONTROL_MODIFY_MSK 0x01
+
+/* key flags __le16*/
+#define STA_KEY_FLG_ENCRYPT_MSK __constant_cpu_to_le16(0x7)
+#define STA_KEY_FLG_NO_ENC __constant_cpu_to_le16(0x0)
+#define STA_KEY_FLG_WEP __constant_cpu_to_le16(0x1)
+#define STA_KEY_FLG_CCMP __constant_cpu_to_le16(0x2)
+#define STA_KEY_FLG_TKIP __constant_cpu_to_le16(0x3)
+
+#define STA_KEY_FLG_KEYID_POS 8
+#define STA_KEY_FLG_INVALID __constant_cpu_to_le16(0x0800)
+
+/* Flags indicate whether to modify vs. don't change various station params */
+#define STA_MODIFY_KEY_MASK 0x01
+#define STA_MODIFY_TID_DISABLE_TX 0x02
+#define STA_MODIFY_TX_RATE_MSK 0x04
+#define STA_MODIFY_ADDBA_TID_MSK 0x08
+#define STA_MODIFY_DELBA_TID_MSK 0x10
+
+/* Receiver address (actually, Rx station's index into station table),
+ * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */
+#define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid))
+
+struct iwl4965_keyinfo {
+ __le16 key_flags;
+ u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
+ u8 reserved1;
+ __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
+ __le16 reserved2;
+ u8 key[16]; /* 16-byte unicast decryption key */
+} __attribute__ ((packed));
+
+/**
+ * struct sta_id_modify
+ * @addr[ETH_ALEN]: station's MAC address
+ * @sta_id: index of station in uCode's station table
+ * @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change
+ *
+ * Driver selects unused table index when adding new station,
+ * or the index to a pre-existing station entry when modifying that station.
+ * Some indexes have special purposes (IWL_AP_ID, index 0, is for AP).
+ *
+ * modify_mask flags select which parameters to modify vs. leave alone.
+ */
+struct sta_id_modify {
+ u8 addr[ETH_ALEN];
+ __le16 reserved1;
+ u8 sta_id;
+ u8 modify_mask;
+ __le16 reserved2;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_ADD_STA = 0x18 (command)
+ *
+ * The device contains an internal table of per-station information,
+ * with info on security keys, aggregation parameters, and Tx rates for
+ * initial Tx attempt and any retries (4965 uses REPLY_TX_LINK_QUALITY_CMD,
+ * 3945 uses REPLY_RATE_SCALE to set up rate tables).
+ *
+ * REPLY_ADD_STA sets up the table entry for one station, either creating
+ * a new entry, or modifying a pre-existing one.
+ *
+ * NOTE: RXON command (without "associated" bit set) wipes the station table
+ * clean. Moving into RF_KILL state does this also. Driver must set up
+ * new station table before transmitting anything on the RXON channel
+ * (except active scans or active measurements; those commands carry
+ * their own txpower/rate setup data).
+ *
+ * When getting started on a new channel, driver must set up the
+ * IWL_BROADCAST_ID entry (last entry in the table). For a client
+ * station in a BSS, once an AP is selected, driver sets up the AP STA
+ * in the IWL_AP_ID entry (1st entry in the table). BROADCAST and AP
+ * are all that are needed for a BSS client station. If the device is
+ * used as AP, or in an IBSS network, driver must set up station table
+ * entries for all STAs in network, starting with index IWL_STA_ID.
+ */
+struct iwl4965_addsta_cmd {
+ u8 mode; /* 1: modify existing, 0: add new station */
+ u8 reserved[3];
+ struct sta_id_modify sta;
+ struct iwl4965_keyinfo key;
+ __le32 station_flags; /* STA_FLG_* */
+ __le32 station_flags_msk; /* STA_FLG_* */
+
+ /* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
+ * corresponding to bit (e.g. bit 5 controls TID 5).
+ * Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
+ __le16 tid_disable_tx;
+
+ __le16 reserved1;
+
+ /* TID for which to add block-ack support.
+ * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
+ u8 add_immediate_ba_tid;
+
+ /* TID for which to remove block-ack support.
+ * Set modify_mask bit STA_MODIFY_DELBA_TID_MSK to use this field. */
+ u8 remove_immediate_ba_tid;
+
+ /* Starting Sequence Number for added block-ack support.
+ * Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
+ __le16 add_immediate_ba_ssn;
+
+ __le32 reserved2;
+} __attribute__ ((packed));
+
+#define ADD_STA_SUCCESS_MSK 0x1
+#define ADD_STA_NO_ROOM_IN_TABLE 0x2
+#define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4
+#define ADD_STA_MODIFY_NON_EXIST_STA 0x8
+/*
+ * REPLY_ADD_STA = 0x18 (response)
+ */
+struct iwl4965_add_sta_resp {
+ u8 status; /* ADD_STA_* */
+} __attribute__ ((packed));
+
+
+/******************************************************************************
+ * (4)
+ * Rx Responses:
+ *
+ *****************************************************************************/
+
+struct iwl4965_rx_frame_stats {
+ u8 phy_count;
+ u8 id;
+ u8 rssi;
+ u8 agc;
+ __le16 sig_avg;
+ __le16 noise_diff;
+ u8 payload[0];
+} __attribute__ ((packed));
+
+struct iwl4965_rx_frame_hdr {
+ __le16 channel;
+ __le16 phy_flags;
+ u8 reserved1;
+ u8 rate;
+ __le16 len;
+ u8 payload[0];
+} __attribute__ ((packed));
+
+#define RX_RES_STATUS_NO_CRC32_ERROR __constant_cpu_to_le32(1 << 0)
+#define RX_RES_STATUS_NO_RXE_OVERFLOW __constant_cpu_to_le32(1 << 1)
+
+#define RX_RES_PHY_FLAGS_BAND_24_MSK __constant_cpu_to_le16(1 << 0)
+#define RX_RES_PHY_FLAGS_MOD_CCK_MSK __constant_cpu_to_le16(1 << 1)
+#define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK __constant_cpu_to_le16(1 << 2)
+#define RX_RES_PHY_FLAGS_NARROW_BAND_MSK __constant_cpu_to_le16(1 << 3)
+#define RX_RES_PHY_FLAGS_ANTENNA_MSK __constant_cpu_to_le16(0xf0)
+
+#define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8)
+#define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8)
+#define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8)
+#define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8)
+#define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8)
+
+#define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11)
+#define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11)
+#define RX_RES_STATUS_DECRYPT_OK (0x3 << 11)
+#define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11)
+#define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11)
+
+struct iwl4965_rx_frame_end {
+ __le32 status;
+ __le64 timestamp;
+ __le32 beacon_timestamp;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_3945_RX = 0x1b (response only, not a command)
+ *
+ * NOTE: DO NOT dereference from casts to this structure
+ * It is provided only for calculating minimum data set size.
+ * The actual offsets of the hdr and end are dynamic based on
+ * stats.phy_count
+ */
+struct iwl4965_rx_frame {
+ struct iwl4965_rx_frame_stats stats;
+ struct iwl4965_rx_frame_hdr hdr;
+ struct iwl4965_rx_frame_end end;
+} __attribute__ ((packed));
+
+/* Fixed (non-configurable) rx data from phy */
+#define RX_PHY_FLAGS_ANTENNAE_OFFSET (4)
+#define RX_PHY_FLAGS_ANTENNAE_MASK (0x70)
+#define IWL_AGC_DB_MASK (0x3f80) /* MASK(7,13) */
+#define IWL_AGC_DB_POS (7)
+struct iwl4965_rx_non_cfg_phy {
+ __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */
+ __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */
+ u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */
+ u8 pad[0];
+} __attribute__ ((packed));
+
+/*
+ * REPLY_4965_RX = 0xc3 (response only, not a command)
+ * Used only for legacy (non 11n) frames.
+ */
+#define RX_RES_PHY_CNT 14
+struct iwl4965_rx_phy_res {
+ u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */
+ u8 cfg_phy_cnt; /* configurable DSP phy data byte count */
+ u8 stat_id; /* configurable DSP phy data set ID */
+ u8 reserved1;
+ __le64 timestamp; /* TSF at on air rise */
+ __le32 beacon_time_stamp; /* beacon at on-air rise */
+ __le16 phy_flags; /* general phy flags: band, modulation, ... */
+ __le16 channel; /* channel number */
+ __le16 non_cfg_phy[RX_RES_PHY_CNT]; /* upto 14 phy entries */
+ __le32 reserved2;
+ __le32 rate_n_flags; /* RATE_MCS_* */
+ __le16 byte_count; /* frame's byte-count */
+ __le16 reserved3;
+} __attribute__ ((packed));
+
+struct iwl4965_rx_mpdu_res_start {
+ __le16 byte_count;
+ __le16 reserved;
+} __attribute__ ((packed));
+
+
+/******************************************************************************
+ * (5)
+ * Tx Commands & Responses:
+ *
+ * Driver must place each REPLY_TX command into one of the prioritized Tx
+ * queues in host DRAM, shared between driver and device (see comments for
+ * SCD registers and Tx/Rx Queues). When the device's Tx scheduler and uCode
+ * are preparing to transmit, the device pulls the Tx command over the PCI
+ * bus via one of the device's Tx DMA channels, to fill an internal FIFO
+ * from which data will be transmitted.
+ *
+ * uCode handles all timing and protocol related to control frames
+ * (RTS/CTS/ACK), based on flags in the Tx command. uCode and Tx scheduler
+ * handle reception of block-acks; uCode updates the host driver via
+ * REPLY_COMPRESSED_BA (4965).
+ *
+ * uCode handles retrying Tx when an ACK is expected but not received.
+ * This includes trying lower data rates than the one requested in the Tx
+ * command, as set up by the REPLY_RATE_SCALE (for 3945) or
+ * REPLY_TX_LINK_QUALITY_CMD (4965).
+ *
+ * Driver sets up transmit power for various rates via REPLY_TX_PWR_TABLE_CMD.
+ * This command must be executed after every RXON command, before Tx can occur.
+ *****************************************************************************/
+
+/* REPLY_TX Tx flags field */
+
+/* 1: Use Request-To-Send protocol before this frame.
+ * Mutually exclusive vs. TX_CMD_FLG_CTS_MSK. */
+#define TX_CMD_FLG_RTS_MSK __constant_cpu_to_le32(1 << 1)
+
+/* 1: Transmit Clear-To-Send to self before this frame.
+ * Driver should set this for AUTH/DEAUTH/ASSOC-REQ/REASSOC mgmnt frames.
+ * Mutually exclusive vs. TX_CMD_FLG_RTS_MSK. */
+#define TX_CMD_FLG_CTS_MSK __constant_cpu_to_le32(1 << 2)
+
+/* 1: Expect ACK from receiving station
+ * 0: Don't expect ACK (MAC header's duration field s/b 0)
+ * Set this for unicast frames, but not broadcast/multicast. */
+#define TX_CMD_FLG_ACK_MSK __constant_cpu_to_le32(1 << 3)
+
+/* For 4965:
+ * 1: Use rate scale table (see REPLY_TX_LINK_QUALITY_CMD).
+ * Tx command's initial_rate_index indicates first rate to try;
+ * uCode walks through table for additional Tx attempts.
+ * 0: Use Tx rate/MCS from Tx command's rate_n_flags field.
+ * This rate will be used for all Tx attempts; it will not be scaled. */
+#define TX_CMD_FLG_STA_RATE_MSK __constant_cpu_to_le32(1 << 4)
+
+/* 1: Expect immediate block-ack.
+ * Set when Txing a block-ack request frame. Also set TX_CMD_FLG_ACK_MSK. */
+#define TX_CMD_FLG_IMM_BA_RSP_MASK __constant_cpu_to_le32(1 << 6)
+
+/* 1: Frame requires full Tx-Op protection.
+ * Set this if either RTS or CTS Tx Flag gets set. */
+#define TX_CMD_FLG_FULL_TXOP_PROT_MSK __constant_cpu_to_le32(1 << 7)
+
+/* Tx antenna selection field; used only for 3945, reserved (0) for 4965.
+ * Set field to "0" to allow 3945 uCode to select antenna (normal usage). */
+#define TX_CMD_FLG_ANT_SEL_MSK __constant_cpu_to_le32(0xf00)
+#define TX_CMD_FLG_ANT_A_MSK __constant_cpu_to_le32(1 << 8)
+#define TX_CMD_FLG_ANT_B_MSK __constant_cpu_to_le32(1 << 9)
+
+/* 1: Ignore Bluetooth priority for this frame.
+ * 0: Delay Tx until Bluetooth device is done (normal usage). */
+#define TX_CMD_FLG_BT_DIS_MSK __constant_cpu_to_le32(1 << 12)
+
+/* 1: uCode overrides sequence control field in MAC header.
+ * 0: Driver provides sequence control field in MAC header.
+ * Set this for management frames, non-QOS data frames, non-unicast frames,
+ * and also in Tx command embedded in REPLY_SCAN_CMD for active scans. */
+#define TX_CMD_FLG_SEQ_CTL_MSK __constant_cpu_to_le32(1 << 13)
+
+/* 1: This frame is non-last MPDU; more fragments are coming.
+ * 0: Last fragment, or not using fragmentation. */
+#define TX_CMD_FLG_MORE_FRAG_MSK __constant_cpu_to_le32(1 << 14)
+
+/* 1: uCode calculates and inserts Timestamp Function (TSF) in outgoing frame.
+ * 0: No TSF required in outgoing frame.
+ * Set this for transmitting beacons and probe responses. */
+#define TX_CMD_FLG_TSF_MSK __constant_cpu_to_le32(1 << 16)
+
+/* 1: Driver inserted 2 bytes pad after the MAC header, for (required) dword
+ * alignment of frame's payload data field.
+ * 0: No pad
+ * Set this for MAC headers with 26 or 30 bytes, i.e. those with QOS or ADDR4
+ * field (but not both). Driver must align frame data (i.e. data following
+ * MAC header) to DWORD boundary. */
+#define TX_CMD_FLG_MH_PAD_MSK __constant_cpu_to_le32(1 << 20)
+
+/* HCCA-AP - disable duration overwriting. */
+#define TX_CMD_FLG_DUR_MSK __constant_cpu_to_le32(1 << 25)
+
+
+/*
+ * TX command security control
+ */
+#define TX_CMD_SEC_WEP 0x01
+#define TX_CMD_SEC_CCM 0x02
+#define TX_CMD_SEC_TKIP 0x03
+#define TX_CMD_SEC_MSK 0x03
+#define TX_CMD_SEC_SHIFT 6
+#define TX_CMD_SEC_KEY128 0x08
+
+/*
+ * 4965 uCode updates these Tx attempt count values in host DRAM.
+ * Used for managing Tx retries when expecting block-acks.
+ * Driver should set these fields to 0.
+ */
+struct iwl4965_dram_scratch {
+ u8 try_cnt; /* Tx attempts */
+ u8 bt_kill_cnt; /* Tx attempts blocked by Bluetooth device */
+ __le16 reserved;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_TX = 0x1c (command)
+ */
+struct iwl4965_tx_cmd {
+ /*
+ * MPDU byte count:
+ * MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size,
+ * + 8 byte IV for CCM or TKIP (not used for WEP)
+ * + Data payload
+ * + 8-byte MIC (not used for CCM/WEP)
+ * NOTE: Does not include Tx command bytes, post-MAC pad bytes,
+ * MIC (CCM) 8 bytes, ICV (WEP/TKIP/CKIP) 4 bytes, CRC 4 bytes.i
+ * Range: 14-2342 bytes.
+ */
+ __le16 len;
+
+ /*
+ * MPDU or MSDU byte count for next frame.
+ * Used for fragmentation and bursting, but not 11n aggregation.
+ * Same as "len", but for next frame. Set to 0 if not applicable.
+ */
+ __le16 next_frame_len;
+
+ __le32 tx_flags; /* TX_CMD_FLG_* */
+
+ /* 4965's uCode may modify this field of the Tx command (in host DRAM!).
+ * Driver must also set dram_lsb_ptr and dram_msb_ptr in this cmd. */
+ struct iwl4965_dram_scratch scratch;
+
+ /* Rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is cleared. */
+ __le32 rate_n_flags; /* RATE_MCS_* */
+
+ /* Index of destination station in uCode's station table */
+ u8 sta_id;
+
+ /* Type of security encryption: CCM or TKIP */
+ u8 sec_ctl; /* TX_CMD_SEC_* */
+
+ /*
+ * Index into rate table (see REPLY_TX_LINK_QUALITY_CMD) for initial
+ * Tx attempt, if TX_CMD_FLG_STA_RATE_MSK is set. Normally "0" for
+ * data frames, this field may be used to selectively reduce initial
+ * rate (via non-0 value) for special frames (e.g. management), while
+ * still supporting rate scaling for all frames.
+ */
+ u8 initial_rate_index;
+ u8 reserved;
+ u8 key[16];
+ __le16 next_frame_flags;
+ __le16 reserved2;
+ union {
+ __le32 life_time;
+ __le32 attempt;
+ } stop_time;
+
+ /* Host DRAM physical address pointer to "scratch" in this command.
+ * Must be dword aligned. "0" in dram_lsb_ptr disables usage. */
+ __le32 dram_lsb_ptr;
+ u8 dram_msb_ptr;
+
+ u8 rts_retry_limit; /*byte 50 */
+ u8 data_retry_limit; /*byte 51 */
+ u8 tid_tspec;
+ union {
+ __le16 pm_frame_timeout;
+ __le16 attempt_duration;
+ } timeout;
+
+ /*
+ * Duration of EDCA burst Tx Opportunity, in 32-usec units.
+ * Set this if txop time is not specified by HCCA protocol (e.g. by AP).
+ */
+ __le16 driver_txop;
+
+ /*
+ * MAC header goes here, followed by 2 bytes padding if MAC header
+ * length is 26 or 30 bytes, followed by payload data
+ */
+ u8 payload[0];
+ struct ieee80211_hdr hdr[0];
+} __attribute__ ((packed));
+
+/* TX command response is sent after *all* transmission attempts.
+ *
+ * NOTES:
+ *
+ * TX_STATUS_FAIL_NEXT_FRAG
+ *
+ * If the fragment flag in the MAC header for the frame being transmitted
+ * is set and there is insufficient time to transmit the next frame, the
+ * TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'.
+ *
+ * TX_STATUS_FIFO_UNDERRUN
+ *
+ * Indicates the host did not provide bytes to the FIFO fast enough while
+ * a TX was in progress.
+ *
+ * TX_STATUS_FAIL_MGMNT_ABORT
+ *
+ * This status is only possible if the ABORT ON MGMT RX parameter was
+ * set to true with the TX command.
+ *
+ * If the MSB of the status parameter is set then an abort sequence is
+ * required. This sequence consists of the host activating the TX Abort
+ * control line, and then waiting for the TX Abort command response. This
+ * indicates that a the device is no longer in a transmit state, and that the
+ * command FIFO has been cleared. The host must then deactivate the TX Abort
+ * control line. Receiving is still allowed in this case.
+ */
+enum {
+ TX_STATUS_SUCCESS = 0x01,
+ TX_STATUS_DIRECT_DONE = 0x02,
+ TX_STATUS_FAIL_SHORT_LIMIT = 0x82,
+ TX_STATUS_FAIL_LONG_LIMIT = 0x83,
+ TX_STATUS_FAIL_FIFO_UNDERRUN = 0x84,
+ TX_STATUS_FAIL_MGMNT_ABORT = 0x85,
+ TX_STATUS_FAIL_NEXT_FRAG = 0x86,
+ TX_STATUS_FAIL_LIFE_EXPIRE = 0x87,
+ TX_STATUS_FAIL_DEST_PS = 0x88,
+ TX_STATUS_FAIL_ABORTED = 0x89,
+ TX_STATUS_FAIL_BT_RETRY = 0x8a,
+ TX_STATUS_FAIL_STA_INVALID = 0x8b,
+ TX_STATUS_FAIL_FRAG_DROPPED = 0x8c,
+ TX_STATUS_FAIL_TID_DISABLE = 0x8d,
+ TX_STATUS_FAIL_FRAME_FLUSHED = 0x8e,
+ TX_STATUS_FAIL_INSUFFICIENT_CF_POLL = 0x8f,
+ TX_STATUS_FAIL_TX_LOCKED = 0x90,
+ TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91,
+};
+
+#define TX_PACKET_MODE_REGULAR 0x0000
+#define TX_PACKET_MODE_BURST_SEQ 0x0100
+#define TX_PACKET_MODE_BURST_FIRST 0x0200
+
+enum {
+ TX_POWER_PA_NOT_ACTIVE = 0x0,
+};
+
+enum {
+ TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */
+ TX_STATUS_DELAY_MSK = 0x00000040,
+ TX_STATUS_ABORT_MSK = 0x00000080,
+ TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */
+ TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */
+ TX_RESERVED = 0x00780000, /* bits 19:22 */
+ TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */
+ TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */
+};
+
+/* *******************************
+ * TX aggregation status
+ ******************************* */
+
+enum {
+ AGG_TX_STATE_TRANSMITTED = 0x00,
+ AGG_TX_STATE_UNDERRUN_MSK = 0x01,
+ AGG_TX_STATE_BT_PRIO_MSK = 0x02,
+ AGG_TX_STATE_FEW_BYTES_MSK = 0x04,
+ AGG_TX_STATE_ABORT_MSK = 0x08,
+ AGG_TX_STATE_LAST_SENT_TTL_MSK = 0x10,
+ AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK = 0x20,
+ AGG_TX_STATE_LAST_SENT_BT_KILL_MSK = 0x40,
+ AGG_TX_STATE_SCD_QUERY_MSK = 0x80,
+ AGG_TX_STATE_TEST_BAD_CRC32_MSK = 0x100,
+ AGG_TX_STATE_RESPONSE_MSK = 0x1ff,
+ AGG_TX_STATE_DUMP_TX_MSK = 0x200,
+ AGG_TX_STATE_DELAY_TX_MSK = 0x400
+};
+
+#define AGG_TX_STATE_LAST_SENT_MSK \
+(AGG_TX_STATE_LAST_SENT_TTL_MSK | \
+ AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK | \
+ AGG_TX_STATE_LAST_SENT_BT_KILL_MSK)
+
+/* # tx attempts for first frame in aggregation */
+#define AGG_TX_STATE_TRY_CNT_POS 12
+#define AGG_TX_STATE_TRY_CNT_MSK 0xf000
+
+/* Command ID and sequence number of Tx command for this frame */
+#define AGG_TX_STATE_SEQ_NUM_POS 16
+#define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000
+
+/*
+ * REPLY_TX = 0x1c (response)
+ *
+ * This response may be in one of two slightly different formats, indicated
+ * by the frame_count field:
+ *
+ * 1) No aggregation (frame_count == 1). This reports Tx results for
+ * a single frame. Multiple attempts, at various bit rates, may have
+ * been made for this frame.
+ *
+ * 2) Aggregation (frame_count > 1). This reports Tx results for
+ * 2 or more frames that used block-acknowledge. All frames were
+ * transmitted at same rate. Rate scaling may have been used if first
+ * frame in this new agg block failed in previous agg block(s).
+ *
+ * Note that, for aggregation, ACK (block-ack) status is not delivered here;
+ * block-ack has not been received by the time the 4965 records this status.
+ * This status relates to reasons the tx might have been blocked or aborted
+ * within the sending station (this 4965), rather than whether it was
+ * received successfully by the destination station.
+ */
+struct iwl4965_tx_resp {
+ u8 frame_count; /* 1 no aggregation, >1 aggregation */
+ u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */
+ u8 failure_rts; /* # failures due to unsuccessful RTS */
+ u8 failure_frame; /* # failures due to no ACK (unused for agg) */
+
+ /* For non-agg: Rate at which frame was successful.
+ * For agg: Rate at which all frames were transmitted. */
+ __le32 rate_n_flags; /* RATE_MCS_* */
+
+ /* For non-agg: RTS + CTS + frame tx attempts time + ACK.
+ * For agg: RTS + CTS + aggregation tx time + block-ack time. */
+ __le16 wireless_media_time; /* uSecs */
+
+ __le16 reserved;
+ __le32 pa_power1; /* RF power amplifier measurement (not used) */
+ __le32 pa_power2;
+
+ /*
+ * For non-agg: frame status TX_STATUS_*
+ * For agg: status of 1st frame, AGG_TX_STATE_*; other frame status
+ * fields follow this one, up to frame_count.
+ * Bit fields:
+ * 11- 0: AGG_TX_STATE_* status code
+ * 15-12: Retry count for 1st frame in aggregation (retries
+ * occur if tx failed for this frame when it was a
+ * member of a previous aggregation block). If rate
+ * scaling is used, retry count indicates the rate
+ * table entry used for all frames in the new agg.
+ * 31-16: Sequence # for this frame's Tx cmd (not SSN!)
+ */
+ __le32 status; /* TX status (for aggregation status of 1st frame) */
+} __attribute__ ((packed));
+
+/*
+ * REPLY_COMPRESSED_BA = 0xc5 (response only, not a command)
+ *
+ * Reports Block-Acknowledge from recipient station
+ */
+struct iwl4965_compressed_ba_resp {
+ __le32 sta_addr_lo32;
+ __le16 sta_addr_hi16;
+ __le16 reserved;
+
+ /* Index of recipient (BA-sending) station in uCode's station table */
+ u8 sta_id;
+ u8 tid;
+ __le16 ba_seq_ctl;
+ __le32 ba_bitmap0;
+ __le32 ba_bitmap1;
+ __le16 scd_flow;
+ __le16 scd_ssn;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response)
+ *
+ * See details under "TXPOWER" in iwl-4965-hw.h.
+ */
+struct iwl4965_txpowertable_cmd {
+ u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
+ u8 reserved;
+ __le16 channel;
+ struct iwl4965_tx_power_db tx_power;
+} __attribute__ ((packed));
+
+/*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */
+#define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1<<0)
+
+/* # of EDCA prioritized tx fifos */
+#define LINK_QUAL_AC_NUM AC_NUM
+
+/* # entries in rate scale table to support Tx retries */
+#define LINK_QUAL_MAX_RETRY_NUM 16
+
+/* Tx antenna selection values */
+#define LINK_QUAL_ANT_A_MSK (1<<0)
+#define LINK_QUAL_ANT_B_MSK (1<<1)
+#define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK)
+
+
+/**
+ * struct iwl4965_link_qual_general_params
+ *
+ * Used in REPLY_TX_LINK_QUALITY_CMD
+ */
+struct iwl4965_link_qual_general_params {
+ u8 flags;
+
+ /* No entries at or above this (driver chosen) index contain MIMO */
+ u8 mimo_delimiter;
+
+ /* Best single antenna to use for single stream (legacy, SISO). */
+ u8 single_stream_ant_msk; /* LINK_QUAL_ANT_* */
+
+ /* Best antennas to use for MIMO (unused for 4965, assumes both). */
+ u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */
+
+ /*
+ * If driver needs to use different initial rates for different
+ * EDCA QOS access categories (as implemented by tx fifos 0-3),
+ * this table will set that up, by indicating the indexes in the
+ * rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table at which to start.
+ * Otherwise, driver should set all entries to 0.
+ *
+ * Entry usage:
+ * 0 = Background, 1 = Best Effort (normal), 2 = Video, 3 = Voice
+ * TX FIFOs above 3 use same value (typically 0) as TX FIFO 3.
+ */
+ u8 start_rate_index[LINK_QUAL_AC_NUM];
+} __attribute__ ((packed));
+
+/**
+ * struct iwl4965_link_qual_agg_params
+ *
+ * Used in REPLY_TX_LINK_QUALITY_CMD
+ */
+struct iwl4965_link_qual_agg_params {
+
+ /* Maximum number of uSec in aggregation.
+ * Driver should set this to 4000 (4 milliseconds). */
+ __le16 agg_time_limit;
+
+ /*
+ * Number of Tx retries allowed for a frame, before that frame will
+ * no longer be considered for the start of an aggregation sequence
+ * (scheduler will then try to tx it as single frame).
+ * Driver should set this to 3.
+ */
+ u8 agg_dis_start_th;
+
+ /*
+ * Maximum number of frames in aggregation.
+ * 0 = no limit (default). 1 = no aggregation.
+ * Other values = max # frames in aggregation.
+ */
+ u8 agg_frame_cnt_limit;
+
+ __le32 reserved;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response)
+ *
+ * For 4965 only; 3945 uses REPLY_RATE_SCALE.
+ *
+ * Each station in the 4965's internal station table has its own table of 16
+ * Tx rates and modulation modes (e.g. legacy/SISO/MIMO) for retrying Tx when
+ * an ACK is not received. This command replaces the entire table for
+ * one station.
+ *
+ * NOTE: Station must already be in 4965's station table. Use REPLY_ADD_STA.
+ *
+ * The rate scaling procedures described below work well. Of course, other
+ * procedures are possible, and may work better for particular environments.
+ *
+ *
+ * FILLING THE RATE TABLE
+ *
+ * Given a particular initial rate and mode, as determined by the rate
+ * scaling algorithm described below, the Linux driver uses the following
+ * formula to fill the rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table in the
+ * Link Quality command:
+ *
+ *
+ * 1) If using High-throughput (HT) (SISO or MIMO) initial rate:
+ * a) Use this same initial rate for first 3 entries.
+ * b) Find next lower available rate using same mode (SISO or MIMO),
+ * use for next 3 entries. If no lower rate available, switch to
+ * legacy mode (no FAT channel, no MIMO, no short guard interval).
+ * c) If using MIMO, set command's mimo_delimiter to number of entries
+ * using MIMO (3 or 6).
+ * d) After trying 2 HT rates, switch to legacy mode (no FAT channel,
+ * no MIMO, no short guard interval), at the next lower bit rate
+ * (e.g. if second HT bit rate was 54, try 48 legacy), and follow
+ * legacy procedure for remaining table entries.
+ *
+ * 2) If using legacy initial rate:
+ * a) Use the initial rate for only one entry.
+ * b) For each following entry, reduce the rate to next lower available
+ * rate, until reaching the lowest available rate.
+ * c) When reducing rate, also switch antenna selection.
+ * d) Once lowest available rate is reached, repeat this rate until
+ * rate table is filled (16 entries), switching antenna each entry.
+ *
+ *
+ * ACCUMULATING HISTORY
+ *
+ * The rate scaling algorithm for 4965, as implemented in Linux driver, uses
+ * two sets of frame Tx success history: One for the current/active modulation
+ * mode, and one for a speculative/search mode that is being attempted. If the
+ * speculative mode turns out to be more effective (i.e. actual transfer
+ * rate is better), then the driver continues to use the speculative mode
+ * as the new current active mode.
+ *
+ * Each history set contains, separately for each possible rate, data for a
+ * sliding window of the 62 most recent tx attempts at that rate. The data
+ * includes a shifting bitmap of success(1)/failure(0), and sums of successful
+ * and attempted frames, from which the driver can additionally calculate a
+ * success ratio (success / attempted) and number of failures
+ * (attempted - success), and control the size of the window (attempted).
+ * The driver uses the bit map to remove successes from the success sum, as
+ * the oldest tx attempts fall out of the window.
+ *
+ * When the 4965 makes multiple tx attempts for a given frame, each attempt
+ * might be at a different rate, and have different modulation characteristics
+ * (e.g. antenna, fat channel, short guard interval), as set up in the rate
+ * scaling table in the Link Quality command. The driver must determine
+ * which rate table entry was used for each tx attempt, to determine which
+ * rate-specific history to update, and record only those attempts that
+ * match the modulation characteristics of the history set.
+ *
+ * When using block-ack (aggregation), all frames are transmitted at the same
+ * rate, since there is no per-attempt acknowledgement from the destination
+ * station. The Tx response struct iwl_tx_resp indicates the Tx rate in
+ * rate_n_flags field. After receiving a block-ack, the driver can update
+ * history for the entire block all at once.
+ *
+ *
+ * FINDING BEST STARTING RATE:
+ *
+ * When working with a selected initial modulation mode (see below), the
+ * driver attempts to find a best initial rate. The initial rate is the
+ * first entry in the Link Quality command's rate table.
+ *
+ * 1) Calculate actual throughput (success ratio * expected throughput, see
+ * table below) for current initial rate. Do this only if enough frames
+ * have been attempted to make the value meaningful: at least 6 failed
+ * tx attempts, or at least 8 successes. If not enough, don't try rate
+ * scaling yet.
+ *
+ * 2) Find available rates adjacent to current initial rate. Available means:
+ * a) supported by hardware &&
+ * b) supported by association &&
+ * c) within any constraints selected by user
+ *
+ * 3) Gather measured throughputs for adjacent rates. These might not have
+ * enough history to calculate a throughput. That's okay, we might try
+ * using one of them anyway!
+ *
+ * 4) Try decreasing rate if, for current rate:
+ * a) success ratio is < 15% ||
+ * b) lower adjacent rate has better measured throughput ||
+ * c) higher adjacent rate has worse throughput, and lower is unmeasured
+ *
+ * As a sanity check, if decrease was determined above, leave rate
+ * unchanged if:
+ * a) lower rate unavailable
+ * b) success ratio at current rate > 85% (very good)
+ * c) current measured throughput is better than expected throughput
+ * of lower rate (under perfect 100% tx conditions, see table below)
+ *
+ * 5) Try increasing rate if, for current rate:
+ * a) success ratio is < 15% ||
+ * b) both adjacent rates' throughputs are unmeasured (try it!) ||
+ * b) higher adjacent rate has better measured throughput ||
+ * c) lower adjacent rate has worse throughput, and higher is unmeasured
+ *
+ * As a sanity check, if increase was determined above, leave rate
+ * unchanged if:
+ * a) success ratio at current rate < 70%. This is not particularly
+ * good performance; higher rate is sure to have poorer success.
+ *
+ * 6) Re-evaluate the rate after each tx frame. If working with block-
+ * acknowledge, history and statistics may be calculated for the entire
+ * block (including prior history that fits within the history windows),
+ * before re-evaluation.
+ *
+ * FINDING BEST STARTING MODULATION MODE:
+ *
+ * After working with a modulation mode for a "while" (and doing rate scaling),
+ * the driver searches for a new initial mode in an attempt to improve
+ * throughput. The "while" is measured by numbers of attempted frames:
+ *
+ * For legacy mode, search for new mode after:
+ * 480 successful frames, or 160 failed frames
+ * For high-throughput modes (SISO or MIMO), search for new mode after:
+ * 4500 successful frames, or 400 failed frames
+ *
+ * Mode switch possibilities are (3 for each mode):
+ *
+ * For legacy:
+ * Change antenna, try SISO (if HT association), try MIMO (if HT association)
+ * For SISO:
+ * Change antenna, try MIMO, try shortened guard interval (SGI)
+ * For MIMO:
+ * Try SISO antenna A, SISO antenna B, try shortened guard interval (SGI)
+ *
+ * When trying a new mode, use the same bit rate as the old/current mode when
+ * trying antenna switches and shortened guard interval. When switching to
+ * SISO from MIMO or legacy, or to MIMO from SISO or legacy, use a rate
+ * for which the expected throughput (under perfect conditions) is about the
+ * same or slightly better than the actual measured throughput delivered by
+ * the old/current mode.
+ *
+ * Actual throughput can be estimated by multiplying the expected throughput
+ * by the success ratio (successful / attempted tx frames). Frame size is
+ * not considered in this calculation; it assumes that frame size will average
+ * out to be fairly consistent over several samples. The following are
+ * metric values for expected throughput assuming 100% success ratio.
+ * Only G band has support for CCK rates:
+ *
+ * RATE: 1 2 5 11 6 9 12 18 24 36 48 54 60
+ *
+ * G: 7 13 35 58 40 57 72 98 121 154 177 186 186
+ * A: 0 0 0 0 40 57 72 98 121 154 177 186 186
+ * SISO 20MHz: 0 0 0 0 42 42 76 102 124 159 183 193 202
+ * SGI SISO 20MHz: 0 0 0 0 46 46 82 110 132 168 192 202 211
+ * MIMO 20MHz: 0 0 0 0 74 74 123 155 179 214 236 244 251
+ * SGI MIMO 20MHz: 0 0 0 0 81 81 131 164 188 222 243 251 257
+ * SISO 40MHz: 0 0 0 0 77 77 127 160 184 220 242 250 257
+ * SGI SISO 40MHz: 0 0 0 0 83 83 135 169 193 229 250 257 264
+ * MIMO 40MHz: 0 0 0 0 123 123 182 214 235 264 279 285 289
+ * SGI MIMO 40MHz: 0 0 0 0 131 131 191 222 242 270 284 289 293
+ *
+ * After the new mode has been tried for a short while (minimum of 6 failed
+ * frames or 8 successful frames), compare success ratio and actual throughput
+ * estimate of the new mode with the old. If either is better with the new
+ * mode, continue to use the new mode.
+ *
+ * Continue comparing modes until all 3 possibilities have been tried.
+ * If moving from legacy to HT, try all 3 possibilities from the new HT
+ * mode. After trying all 3, a best mode is found. Continue to use this mode
+ * for the longer "while" described above (e.g. 480 successful frames for
+ * legacy), and then repeat the search process.
+ *
+ */
+struct iwl4965_link_quality_cmd {
+
+ /* Index of destination/recipient station in uCode's station table */
+ u8 sta_id;
+ u8 reserved1;
+ __le16 control; /* not used */
+ struct iwl4965_link_qual_general_params general_params;
+ struct iwl4965_link_qual_agg_params agg_params;
+
+ /*
+ * Rate info; when using rate-scaling, Tx command's initial_rate_index
+ * specifies 1st Tx rate attempted, via index into this table.
+ * 4965 works its way through table when retrying Tx.
+ */
+ struct {
+ __le32 rate_n_flags; /* RATE_MCS_*, IWL_RATE_* */
+ } rs_table[LINK_QUAL_MAX_RETRY_NUM];
+ __le32 reserved2;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_BT_CONFIG = 0x9b (command, has simple generic response)
+ */
+struct iwl4965_bt_cmd {
+ u8 flags;
+ u8 lead_time;
+ u8 max_kill;
+ u8 reserved;
+ __le32 kill_ack_mask;
+ __le32 kill_cts_mask;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (6)
+ * Spectrum Management (802.11h) Commands, Responses, Notifications:
+ *
+ *****************************************************************************/
+
+/*
+ * Spectrum Management
+ */
+#define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \
+ RXON_FILTER_CTL2HOST_MSK | \
+ RXON_FILTER_ACCEPT_GRP_MSK | \
+ RXON_FILTER_DIS_DECRYPT_MSK | \
+ RXON_FILTER_DIS_GRP_DECRYPT_MSK | \
+ RXON_FILTER_ASSOC_MSK | \
+ RXON_FILTER_BCON_AWARE_MSK)
+
+struct iwl4965_measure_channel {
+ __le32 duration; /* measurement duration in extended beacon
+ * format */
+ u8 channel; /* channel to measure */
+ u8 type; /* see enum iwl4965_measure_type */
+ __le16 reserved;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command)
+ */
+struct iwl4965_spectrum_cmd {
+ __le16 len; /* number of bytes starting from token */
+ u8 token; /* token id */
+ u8 id; /* measurement id -- 0 or 1 */
+ u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */
+ u8 periodic; /* 1 = periodic */
+ __le16 path_loss_timeout;
+ __le32 start_time; /* start time in extended beacon format */
+ __le32 reserved2;
+ __le32 flags; /* rxon flags */
+ __le32 filter_flags; /* rxon filter flags */
+ __le16 channel_count; /* minimum 1, maximum 10 */
+ __le16 reserved3;
+ struct iwl4965_measure_channel channels[10];
+} __attribute__ ((packed));
+
+/*
+ * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response)
+ */
+struct iwl4965_spectrum_resp {
+ u8 token;
+ u8 id; /* id of the prior command replaced, or 0xff */
+ __le16 status; /* 0 - command will be handled
+ * 1 - cannot handle (conflicts with another
+ * measurement) */
+} __attribute__ ((packed));
+
+enum iwl4965_measurement_state {
+ IWL_MEASUREMENT_START = 0,
+ IWL_MEASUREMENT_STOP = 1,
+};
+
+enum iwl4965_measurement_status {
+ IWL_MEASUREMENT_OK = 0,
+ IWL_MEASUREMENT_CONCURRENT = 1,
+ IWL_MEASUREMENT_CSA_CONFLICT = 2,
+ IWL_MEASUREMENT_TGH_CONFLICT = 3,
+ /* 4-5 reserved */
+ IWL_MEASUREMENT_STOPPED = 6,
+ IWL_MEASUREMENT_TIMEOUT = 7,
+ IWL_MEASUREMENT_PERIODIC_FAILED = 8,
+};
+
+#define NUM_ELEMENTS_IN_HISTOGRAM 8
+
+struct iwl4965_measurement_histogram {
+ __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */
+ __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */
+} __attribute__ ((packed));
+
+/* clear channel availability counters */
+struct iwl4965_measurement_cca_counters {
+ __le32 ofdm;
+ __le32 cck;
+} __attribute__ ((packed));
+
+enum iwl4965_measure_type {
+ IWL_MEASURE_BASIC = (1 << 0),
+ IWL_MEASURE_CHANNEL_LOAD = (1 << 1),
+ IWL_MEASURE_HISTOGRAM_RPI = (1 << 2),
+ IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
+ IWL_MEASURE_FRAME = (1 << 4),
+ /* bits 5:6 are reserved */
+ IWL_MEASURE_IDLE = (1 << 7),
+};
+
+/*
+ * SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command)
+ */
+struct iwl4965_spectrum_notification {
+ u8 id; /* measurement id -- 0 or 1 */
+ u8 token;
+ u8 channel_index; /* index in measurement channel list */
+ u8 state; /* 0 - start, 1 - stop */
+ __le32 start_time; /* lower 32-bits of TSF */
+ u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */
+ u8 channel;
+ u8 type; /* see enum iwl4965_measurement_type */
+ u8 reserved1;
+ /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only
+ * valid if applicable for measurement type requested. */
+ __le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */
+ __le32 cca_cck; /* cca fraction time in 44Mhz clock periods */
+ __le32 cca_time; /* channel load time in usecs */
+ u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 -
+ * unidentified */
+ u8 reserved2[3];
+ struct iwl4965_measurement_histogram histogram;
+ __le32 stop_time; /* lower 32-bits of TSF */
+ __le32 status; /* see iwl4965_measurement_status */
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (7)
+ * Power Management Commands, Responses, Notifications:
+ *
+ *****************************************************************************/
+
+/**
+ * struct iwl4965_powertable_cmd - Power Table Command
+ * @flags: See below:
+ *
+ * POWER_TABLE_CMD = 0x77 (command, has simple generic response)
+ *
+ * PM allow:
+ * bit 0 - '0' Driver not allow power management
+ * '1' Driver allow PM (use rest of parameters)
+ * uCode send sleep notifications:
+ * bit 1 - '0' Don't send sleep notification
+ * '1' send sleep notification (SEND_PM_NOTIFICATION)
+ * Sleep over DTIM
+ * bit 2 - '0' PM have to walk up every DTIM
+ * '1' PM could sleep over DTIM till listen Interval.
+ * PCI power managed
+ * bit 3 - '0' (PCI_LINK_CTRL & 0x1)
+ * '1' !(PCI_LINK_CTRL & 0x1)
+ * Force sleep Modes
+ * bit 31/30- '00' use both mac/xtal sleeps
+ * '01' force Mac sleep
+ * '10' force xtal sleep
+ * '11' Illegal set
+ *
+ * NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then
+ * ucode assume sleep over DTIM is allowed and we don't need to wakeup
+ * for every DTIM.
+ */
+#define IWL_POWER_VEC_SIZE 5
+
+#define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK __constant_cpu_to_le16(1<<0)
+#define IWL_POWER_SLEEP_OVER_DTIM_MSK __constant_cpu_to_le16(1<<2)
+#define IWL_POWER_PCI_PM_MSK __constant_cpu_to_le16(1<<3)
+
+struct iwl4965_powertable_cmd {
+ __le16 flags;
+ u8 keep_alive_seconds;
+ u8 debug_flags;
+ __le32 rx_data_timeout;
+ __le32 tx_data_timeout;
+ __le32 sleep_interval[IWL_POWER_VEC_SIZE];
+ __le32 keep_alive_beacons;
+} __attribute__ ((packed));
+
+/*
+ * PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command)
+ * 3945 and 4965 identical.
+ */
+struct iwl4965_sleep_notification {
+ u8 pm_sleep_mode;
+ u8 pm_wakeup_src;
+ __le16 reserved;
+ __le32 sleep_time;
+ __le32 tsf_low;
+ __le32 bcon_timer;
+} __attribute__ ((packed));
+
+/* Sleep states. 3945 and 4965 identical. */
+enum {
+ IWL_PM_NO_SLEEP = 0,
+ IWL_PM_SLP_MAC = 1,
+ IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
+ IWL_PM_SLP_FULL_MAC_CARD_STATE = 3,
+ IWL_PM_SLP_PHY = 4,
+ IWL_PM_SLP_REPENT = 5,
+ IWL_PM_WAKEUP_BY_TIMER = 6,
+ IWL_PM_WAKEUP_BY_DRIVER = 7,
+ IWL_PM_WAKEUP_BY_RFKILL = 8,
+ /* 3 reserved */
+ IWL_PM_NUM_OF_MODES = 12,
+};
+
+/*
+ * REPLY_CARD_STATE_CMD = 0xa0 (command, has simple generic response)
+ */
+#define CARD_STATE_CMD_DISABLE 0x00 /* Put card to sleep */
+#define CARD_STATE_CMD_ENABLE 0x01 /* Wake up card */
+#define CARD_STATE_CMD_HALT 0x02 /* Power down permanently */
+struct iwl4965_card_state_cmd {
+ __le32 status; /* CARD_STATE_CMD_* request new power state */
+} __attribute__ ((packed));
+
+/*
+ * CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command)
+ */
+struct iwl4965_card_state_notif {
+ __le32 flags;
+} __attribute__ ((packed));
+
+#define HW_CARD_DISABLED 0x01
+#define SW_CARD_DISABLED 0x02
+#define RF_CARD_DISABLED 0x04
+#define RXON_CARD_DISABLED 0x10
+
+struct iwl4965_ct_kill_config {
+ __le32 reserved;
+ __le32 critical_temperature_M;
+ __le32 critical_temperature_R;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (8)
+ * Scan Commands, Responses, Notifications:
+ *
+ *****************************************************************************/
+
+struct iwl4965_scan_channel {
+ /* type is defined as:
+ * 0:0 active (0 - passive)
+ * 1:4 SSID direct
+ * If 1 is set then corresponding SSID IE is transmitted in probe
+ * 5:7 reserved
+ */
+ u8 type;
+ u8 channel;
+ struct iwl4965_tx_power tpc;
+ __le16 active_dwell;
+ __le16 passive_dwell;
+} __attribute__ ((packed));
+
+struct iwl4965_ssid_ie {
+ u8 id;
+ u8 len;
+ u8 ssid[32];
+} __attribute__ ((packed));
+
+#define PROBE_OPTION_MAX 0x4
+#define TX_CMD_LIFE_TIME_INFINITE __constant_cpu_to_le32(0xFFFFFFFF)
+#define IWL_GOOD_CRC_TH __constant_cpu_to_le16(1)
+#define IWL_MAX_SCAN_SIZE 1024
+
+/*
+ * REPLY_SCAN_CMD = 0x80 (command)
+ */
+struct iwl4965_scan_cmd {
+ __le16 len;
+ u8 reserved0;
+ u8 channel_count;
+ __le16 quiet_time; /* dwell only this long on quiet chnl
+ * (active scan) */
+ __le16 quiet_plcp_th; /* quiet chnl is < this # pkts (typ. 1) */
+ __le16 good_CRC_th; /* passive -> active promotion threshold */
+ __le16 rx_chain;
+ __le32 max_out_time; /* max usec to be out of associated (service)
+ * chnl */
+ __le32 suspend_time; /* pause scan this long when returning to svc
+ * chnl.
+ * 3945 -- 31:24 # beacons, 19:0 additional usec,
+ * 4965 -- 31:22 # beacons, 21:0 additional usec.
+ */
+ __le32 flags;
+ __le32 filter_flags;
+
+ struct iwl4965_tx_cmd tx_cmd;
+ struct iwl4965_ssid_ie direct_scan[PROBE_OPTION_MAX];
+
+ u8 data[0];
+ /*
+ * The channels start after the probe request payload and are of type:
+ *
+ * struct iwl4965_scan_channel channels[0];
+ *
+ * NOTE: Only one band of channels can be scanned per pass. You
+ * can not mix 2.4GHz channels and 5.2GHz channels and must
+ * request a scan multiple times (not concurrently)
+ *
+ */
+} __attribute__ ((packed));
+
+/* Can abort will notify by complete notification with abort status. */
+#define CAN_ABORT_STATUS __constant_cpu_to_le32(0x1)
+/* complete notification statuses */
+#define ABORT_STATUS 0x2
+
+/*
+ * REPLY_SCAN_CMD = 0x80 (response)
+ */
+struct iwl4965_scanreq_notification {
+ __le32 status; /* 1: okay, 2: cannot fulfill request */
+} __attribute__ ((packed));
+
+/*
+ * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command)
+ */
+struct iwl4965_scanstart_notification {
+ __le32 tsf_low;
+ __le32 tsf_high;
+ __le32 beacon_timer;
+ u8 channel;
+ u8 band;
+ u8 reserved[2];
+ __le32 status;
+} __attribute__ ((packed));
+
+#define SCAN_OWNER_STATUS 0x1;
+#define MEASURE_OWNER_STATUS 0x2;
+
+#define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */
+/*
+ * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command)
+ */
+struct iwl4965_scanresults_notification {
+ u8 channel;
+ u8 band;
+ u8 reserved[2];
+ __le32 tsf_low;
+ __le32 tsf_high;
+ __le32 statistics[NUMBER_OF_STATISTICS];
+} __attribute__ ((packed));
+
+/*
+ * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command)
+ */
+struct iwl4965_scancomplete_notification {
+ u8 scanned_channels;
+ u8 status;
+ u8 reserved;
+ u8 last_channel;
+ __le32 tsf_low;
+ __le32 tsf_high;
+} __attribute__ ((packed));
+
+
+/******************************************************************************
+ * (9)
+ * IBSS/AP Commands and Notifications:
+ *
+ *****************************************************************************/
+
+/*
+ * BEACON_NOTIFICATION = 0x90 (notification only, not a command)
+ */
+struct iwl4965_beacon_notif {
+ struct iwl4965_tx_resp beacon_notify_hdr;
+ __le32 low_tsf;
+ __le32 high_tsf;
+ __le32 ibss_mgr_status;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_TX_BEACON = 0x91 (command, has simple generic response)
+ */
+struct iwl4965_tx_beacon_cmd {
+ struct iwl4965_tx_cmd tx;
+ __le16 tim_idx;
+ u8 tim_size;
+ u8 reserved1;
+ struct ieee80211_hdr frame[0]; /* beacon frame */
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (10)
+ * Statistics Commands and Notifications:
+ *
+ *****************************************************************************/
+
+#define IWL_TEMP_CONVERT 260
+
+#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
+#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
+#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
+
+/* Used for passing to driver number of successes and failures per rate */
+struct rate_histogram {
+ union {
+ __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
+ __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
+ __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
+ } success;
+ union {
+ __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
+ __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
+ __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
+ } failed;
+} __attribute__ ((packed));
+
+/* statistics command response */
+
+struct statistics_rx_phy {
+ __le32 ina_cnt;
+ __le32 fina_cnt;
+ __le32 plcp_err;
+ __le32 crc32_err;
+ __le32 overrun_err;
+ __le32 early_overrun_err;
+ __le32 crc32_good;
+ __le32 false_alarm_cnt;
+ __le32 fina_sync_err_cnt;
+ __le32 sfd_timeout;
+ __le32 fina_timeout;
+ __le32 unresponded_rts;
+ __le32 rxe_frame_limit_overrun;
+ __le32 sent_ack_cnt;
+ __le32 sent_cts_cnt;
+ __le32 sent_ba_rsp_cnt;
+ __le32 dsp_self_kill;
+ __le32 mh_format_err;
+ __le32 re_acq_main_rssi_sum;
+ __le32 reserved3;
+} __attribute__ ((packed));
+
+struct statistics_rx_ht_phy {
+ __le32 plcp_err;
+ __le32 overrun_err;
+ __le32 early_overrun_err;
+ __le32 crc32_good;
+ __le32 crc32_err;
+ __le32 mh_format_err;
+ __le32 agg_crc32_good;
+ __le32 agg_mpdu_cnt;
+ __le32 agg_cnt;
+ __le32 reserved2;
+} __attribute__ ((packed));
+
+struct statistics_rx_non_phy {
+ __le32 bogus_cts; /* CTS received when not expecting CTS */
+ __le32 bogus_ack; /* ACK received when not expecting ACK */
+ __le32 non_bssid_frames; /* number of frames with BSSID that
+ * doesn't belong to the STA BSSID */
+ __le32 filtered_frames; /* count frames that were dumped in the
+ * filtering process */
+ __le32 non_channel_beacons; /* beacons with our bss id but not on
+ * our serving channel */
+ __le32 channel_beacons; /* beacons with our bss id and in our
+ * serving channel */
+ __le32 num_missed_bcon; /* number of missed beacons */
+ __le32 adc_rx_saturation_time; /* count in 0.8us units the time the
+ * ADC was in saturation */
+ __le32 ina_detection_search_time;/* total time (in 0.8us) searched
+ * for INA */
+ __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */
+ __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */
+ __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */
+ __le32 interference_data_flag; /* flag for interference data
+ * availability. 1 when data is
+ * available. */
+ __le32 channel_load; /* counts RX Enable time */
+ __le32 dsp_false_alarms; /* DSP false alarm (both OFDM
+ * and CCK) counter */
+ __le32 beacon_rssi_a;
+ __le32 beacon_rssi_b;
+ __le32 beacon_rssi_c;
+ __le32 beacon_energy_a;
+ __le32 beacon_energy_b;
+ __le32 beacon_energy_c;
+} __attribute__ ((packed));
+
+struct statistics_rx {
+ struct statistics_rx_phy ofdm;
+ struct statistics_rx_phy cck;
+ struct statistics_rx_non_phy general;
+ struct statistics_rx_ht_phy ofdm_ht;
+} __attribute__ ((packed));
+
+struct statistics_tx_non_phy_agg {
+ __le32 ba_timeout;
+ __le32 ba_reschedule_frames;
+ __le32 scd_query_agg_frame_cnt;
+ __le32 scd_query_no_agg;
+ __le32 scd_query_agg;
+ __le32 scd_query_mismatch;
+ __le32 frame_not_ready;
+ __le32 underrun;
+ __le32 bt_prio_kill;
+ __le32 rx_ba_rsp_cnt;
+ __le32 reserved2;
+ __le32 reserved3;
+} __attribute__ ((packed));
+
+struct statistics_tx {
+ __le32 preamble_cnt;
+ __le32 rx_detected_cnt;
+ __le32 bt_prio_defer_cnt;
+ __le32 bt_prio_kill_cnt;
+ __le32 few_bytes_cnt;
+ __le32 cts_timeout;
+ __le32 ack_timeout;
+ __le32 expected_ack_cnt;
+ __le32 actual_ack_cnt;
+ __le32 dump_msdu_cnt;
+ __le32 burst_abort_next_frame_mismatch_cnt;
+ __le32 burst_abort_missing_next_frame_cnt;
+ __le32 cts_timeout_collision;
+ __le32 ack_or_ba_timeout_collision;
+ struct statistics_tx_non_phy_agg agg;
+} __attribute__ ((packed));
+
+struct statistics_dbg {
+ __le32 burst_check;
+ __le32 burst_count;
+ __le32 reserved[4];
+} __attribute__ ((packed));
+
+struct statistics_div {
+ __le32 tx_on_a;
+ __le32 tx_on_b;
+ __le32 exec_time;
+ __le32 probe_time;
+ __le32 reserved1;
+ __le32 reserved2;
+} __attribute__ ((packed));
+
+struct statistics_general {
+ __le32 temperature;
+ __le32 temperature_m;
+ struct statistics_dbg dbg;
+ __le32 sleep_time;
+ __le32 slots_out;
+ __le32 slots_idle;
+ __le32 ttl_timestamp;
+ struct statistics_div div;
+ __le32 rx_enable_counter;
+ __le32 reserved1;
+ __le32 reserved2;
+ __le32 reserved3;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_STATISTICS_CMD = 0x9c,
+ * 3945 and 4965 identical.
+ *
+ * This command triggers an immediate response containing uCode statistics.
+ * The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below.
+ *
+ * If the CLEAR_STATS configuration flag is set, uCode will clear its
+ * internal copy of the statistics (counters) after issuing the response.
+ * This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below).
+ *
+ * If the DISABLE_NOTIF configuration flag is set, uCode will not issue
+ * STATISTICS_NOTIFICATIONs after received beacons (see below). This flag
+ * does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself.
+ */
+#define IWL_STATS_CONF_CLEAR_STATS __constant_cpu_to_le32(0x1) /* see above */
+#define IWL_STATS_CONF_DISABLE_NOTIF __constant_cpu_to_le32(0x2)/* see above */
+struct iwl4965_statistics_cmd {
+ __le32 configuration_flags; /* IWL_STATS_CONF_* */
+} __attribute__ ((packed));
+
+/*
+ * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command)
+ *
+ * By default, uCode issues this notification after receiving a beacon
+ * while associated. To disable this behavior, set DISABLE_NOTIF flag in the
+ * REPLY_STATISTICS_CMD 0x9c, above.
+ *
+ * Statistics counters continue to increment beacon after beacon, but are
+ * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD
+ * 0x9c with CLEAR_STATS bit set (see above).
+ *
+ * uCode also issues this notification during scans. uCode clears statistics
+ * appropriately so that each notification contains statistics for only the
+ * one channel that has just been scanned.
+ */
+#define STATISTICS_REPLY_FLG_BAND_24G_MSK __constant_cpu_to_le32(0x2)
+#define STATISTICS_REPLY_FLG_FAT_MODE_MSK __constant_cpu_to_le32(0x8)
+struct iwl4965_notif_statistics {
+ __le32 flag;
+ struct statistics_rx rx;
+ struct statistics_tx tx;
+ struct statistics_general general;
+} __attribute__ ((packed));
+
+
+/*
+ * MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command)
+ */
+/* if ucode missed CONSECUTIVE_MISSED_BCONS_TH beacons in a row,
+ * then this notification will be sent. */
+#define CONSECUTIVE_MISSED_BCONS_TH 20
+
+struct iwl4965_missed_beacon_notif {
+ __le32 consequtive_missed_beacons;
+ __le32 total_missed_becons;
+ __le32 num_expected_beacons;
+ __le32 num_recvd_beacons;
+} __attribute__ ((packed));
+
+
+/******************************************************************************
+ * (11)
+ * Rx Calibration Commands:
+ *
+ * With the uCode used for open source drivers, most Tx calibration (except
+ * for Tx Power) and most Rx calibration is done by uCode during the
+ * "initialize" phase of uCode boot. Driver must calibrate only:
+ *
+ * 1) Tx power (depends on temperature), described elsewhere
+ * 2) Receiver gain balance (optimize MIMO, and detect disconnected antennas)
+ * 3) Receiver sensitivity (to optimize signal detection)
+ *
+ *****************************************************************************/
+
+/**
+ * SENSITIVITY_CMD = 0xa8 (command, has simple generic response)
+ *
+ * This command sets up the Rx signal detector for a sensitivity level that
+ * is high enough to lock onto all signals within the associated network,
+ * but low enough to ignore signals that are below a certain threshold, so as
+ * not to have too many "false alarms". False alarms are signals that the
+ * Rx DSP tries to lock onto, but then discards after determining that they
+ * are noise.
+ *
+ * The optimum number of false alarms is between 5 and 50 per 200 TUs
+ * (200 * 1024 uSecs, i.e. 204.8 milliseconds) of actual Rx time (i.e.
+ * time listening, not transmitting). Driver must adjust sensitivity so that
+ * the ratio of actual false alarms to actual Rx time falls within this range.
+ *
+ * While associated, uCode delivers STATISTICS_NOTIFICATIONs after each
+ * received beacon. These provide information to the driver to analyze the
+ * sensitivity. Don't analyze statistics that come in from scanning, or any
+ * other non-associated-network source. Pertinent statistics include:
+ *
+ * From "general" statistics (struct statistics_rx_non_phy):
+ *
+ * (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level)
+ * Measure of energy of desired signal. Used for establishing a level
+ * below which the device does not detect signals.
+ *
+ * (beacon_silence_rssi_[abc] & 0x0FF00) >> 8 (unsigned, units in dB)
+ * Measure of background noise in silent period after beacon.
+ *
+ * channel_load
+ * uSecs of actual Rx time during beacon period (varies according to
+ * how much time was spent transmitting).
+ *
+ * From "cck" and "ofdm" statistics (struct statistics_rx_phy), separately:
+ *
+ * false_alarm_cnt
+ * Signal locks abandoned early (before phy-level header).
+ *
+ * plcp_err
+ * Signal locks abandoned late (during phy-level header).
+ *
+ * NOTE: Both false_alarm_cnt and plcp_err increment monotonically from
+ * beacon to beacon, i.e. each value is an accumulation of all errors
+ * before and including the latest beacon. Values will wrap around to 0
+ * after counting up to 2^32 - 1. Driver must differentiate vs.
+ * previous beacon's values to determine # false alarms in the current
+ * beacon period.
+ *
+ * Total number of false alarms = false_alarms + plcp_errs
+ *
+ * For OFDM, adjust the following table entries in struct iwl_sensitivity_cmd
+ * (notice that the start points for OFDM are at or close to settings for
+ * maximum sensitivity):
+ *
+ * START / MIN / MAX
+ * HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX 90 / 85 / 120
+ * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX 170 / 170 / 210
+ * HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX 105 / 105 / 140
+ * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX 220 / 220 / 270
+ *
+ * If actual rate of OFDM false alarms (+ plcp_errors) is too high
+ * (greater than 50 for each 204.8 msecs listening), reduce sensitivity
+ * by *adding* 1 to all 4 of the table entries above, up to the max for
+ * each entry. Conversely, if false alarm rate is too low (less than 5
+ * for each 204.8 msecs listening), *subtract* 1 from each entry to
+ * increase sensitivity.
+ *
+ * For CCK sensitivity, keep track of the following:
+ *
+ * 1). 20-beacon history of maximum background noise, indicated by
+ * (beacon_silence_rssi_[abc] & 0x0FF00), units in dB, across the
+ * 3 receivers. For any given beacon, the "silence reference" is
+ * the maximum of last 60 samples (20 beacons * 3 receivers).
+ *
+ * 2). 10-beacon history of strongest signal level, as indicated
+ * by (beacon_energy_[abc] & 0x0FF00) >> 8, across the 3 receivers,
+ * i.e. the strength of the signal through the best receiver at the
+ * moment. These measurements are "upside down", with lower values
+ * for stronger signals, so max energy will be *minimum* value.
+ *
+ * Then for any given beacon, the driver must determine the *weakest*
+ * of the strongest signals; this is the minimum level that needs to be
+ * successfully detected, when using the best receiver at the moment.
+ * "Max cck energy" is the maximum (higher value means lower energy!)
+ * of the last 10 minima. Once this is determined, driver must add
+ * a little margin by adding "6" to it.
+ *
+ * 3). Number of consecutive beacon periods with too few false alarms.
+ * Reset this to 0 at the first beacon period that falls within the
+ * "good" range (5 to 50 false alarms per 204.8 milliseconds rx).
+ *
+ * Then, adjust the following CCK table entries in struct iwl_sensitivity_cmd
+ * (notice that the start points for CCK are at maximum sensitivity):
+ *
+ * START / MIN / MAX
+ * HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX 125 / 125 / 200
+ * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX 200 / 200 / 400
+ * HD_MIN_ENERGY_CCK_DET_INDEX 100 / 0 / 100
+ *
+ * If actual rate of CCK false alarms (+ plcp_errors) is too high
+ * (greater than 50 for each 204.8 msecs listening), method for reducing
+ * sensitivity is:
+ *
+ * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
+ * up to max 400.
+ *
+ * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is < 160,
+ * sensitivity has been reduced a significant amount; bring it up to
+ * a moderate 161. Otherwise, *add* 3, up to max 200.
+ *
+ * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is > 160,
+ * sensitivity has been reduced only a moderate or small amount;
+ * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_INDEX,
+ * down to min 0. Otherwise (if gain has been significantly reduced),
+ * don't change the HD_MIN_ENERGY_CCK_DET_INDEX value.
+ *
+ * b) Save a snapshot of the "silence reference".
+ *
+ * If actual rate of CCK false alarms (+ plcp_errors) is too low
+ * (less than 5 for each 204.8 msecs listening), method for increasing
+ * sensitivity is used only if:
+ *
+ * 1a) Previous beacon did not have too many false alarms
+ * 1b) AND difference between previous "silence reference" and current
+ * "silence reference" (prev - current) is 2 or more,
+ * OR 2) 100 or more consecutive beacon periods have had rate of
+ * less than 5 false alarms per 204.8 milliseconds rx time.
+ *
+ * Method for increasing sensitivity:
+ *
+ * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX,
+ * down to min 125.
+ *
+ * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
+ * down to min 200.
+ *
+ * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_INDEX, up to max 100.
+ *
+ * If actual rate of CCK false alarms (+ plcp_errors) is within good range
+ * (between 5 and 50 for each 204.8 msecs listening):
+ *
+ * 1) Save a snapshot of the silence reference.
+ *
+ * 2) If previous beacon had too many CCK false alarms (+ plcp_errors),
+ * give some extra margin to energy threshold by *subtracting* 8
+ * from value in HD_MIN_ENERGY_CCK_DET_INDEX.
+ *
+ * For all cases (too few, too many, good range), make sure that the CCK
+ * detection threshold (energy) is below the energy level for robust
+ * detection over the past 10 beacon periods, the "Max cck energy".
+ * Lower values mean higher energy; this means making sure that the value
+ * in HD_MIN_ENERGY_CCK_DET_INDEX is at or *above* "Max cck energy".
+ *
+ * Driver should set the following entries to fixed values:
+ *
+ * HD_MIN_ENERGY_OFDM_DET_INDEX 100
+ * HD_BARKER_CORR_TH_ADD_MIN_INDEX 190
+ * HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX 390
+ * HD_OFDM_ENERGY_TH_IN_INDEX 62
+ */
+
+/*
+ * Table entries in SENSITIVITY_CMD (struct iwl4965_sensitivity_cmd)
+ */
+#define HD_TABLE_SIZE (11) /* number of entries */
+#define HD_MIN_ENERGY_CCK_DET_INDEX (0) /* table indexes */
+#define HD_MIN_ENERGY_OFDM_DET_INDEX (1)
+#define HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX (2)
+#define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX (3)
+#define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX (4)
+#define HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX (5)
+#define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX (6)
+#define HD_BARKER_CORR_TH_ADD_MIN_INDEX (7)
+#define HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX (8)
+#define HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX (9)
+#define HD_OFDM_ENERGY_TH_IN_INDEX (10)
+
+/* Control field in struct iwl4965_sensitivity_cmd */
+#define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE __constant_cpu_to_le16(0)
+#define SENSITIVITY_CMD_CONTROL_WORK_TABLE __constant_cpu_to_le16(1)
+
+/**
+ * struct iwl4965_sensitivity_cmd
+ * @control: (1) updates working table, (0) updates default table
+ * @table: energy threshold values, use HD_* as index into table
+ *
+ * Always use "1" in "control" to update uCode's working table and DSP.
+ */
+struct iwl4965_sensitivity_cmd {
+ __le16 control; /* always use "1" */
+ __le16 table[HD_TABLE_SIZE]; /* use HD_* as index */
+} __attribute__ ((packed));
+
+
+/**
+ * REPLY_PHY_CALIBRATION_CMD = 0xb0 (command, has simple generic response)
+ *
+ * This command sets the relative gains of 4965's 3 radio receiver chains.
+ *
+ * After the first association, driver should accumulate signal and noise
+ * statistics from the STATISTICS_NOTIFICATIONs that follow the first 20
+ * beacons from the associated network (don't collect statistics that come
+ * in from scanning, or any other non-network source).
+ *
+ * DISCONNECTED ANTENNA:
+ *
+ * Driver should determine which antennas are actually connected, by comparing
+ * average beacon signal levels for the 3 Rx chains. Accumulate (add) the
+ * following values over 20 beacons, one accumulator for each of the chains
+ * a/b/c, from struct statistics_rx_non_phy:
+ *
+ * beacon_rssi_[abc] & 0x0FF (unsigned, units in dB)
+ *
+ * Find the strongest signal from among a/b/c. Compare the other two to the
+ * strongest. If any signal is more than 15 dB (times 20, unless you
+ * divide the accumulated values by 20) below the strongest, the driver
+ * considers that antenna to be disconnected, and should not try to use that
+ * antenna/chain for Rx or Tx. If both A and B seem to be disconnected,
+ * driver should declare the stronger one as connected, and attempt to use it
+ * (A and B are the only 2 Tx chains!).
+ *
+ *
+ * RX BALANCE:
+ *
+ * Driver should balance the 3 receivers (but just the ones that are connected
+ * to antennas, see above) for gain, by comparing the average signal levels
+ * detected during the silence after each beacon (background noise).
+ * Accumulate (add) the following values over 20 beacons, one accumulator for
+ * each of the chains a/b/c, from struct statistics_rx_non_phy:
+ *
+ * beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB)
+ *
+ * Find the weakest background noise level from among a/b/c. This Rx chain
+ * will be the reference, with 0 gain adjustment. Attenuate other channels by
+ * finding noise difference:
+ *
+ * (accum_noise[i] - accum_noise[reference]) / 30
+ *
+ * The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB.
+ * For use in diff_gain_[abc] fields of struct iwl_calibration_cmd, the
+ * driver should limit the difference results to a range of 0-3 (0-4.5 dB),
+ * and set bit 2 to indicate "reduce gain". The value for the reference
+ * (weakest) chain should be "0".
+ *
+ * diff_gain_[abc] bit fields:
+ * 2: (1) reduce gain, (0) increase gain
+ * 1-0: amount of gain, units of 1.5 dB
+ */
+
+/* "Differential Gain" opcode used in REPLY_PHY_CALIBRATION_CMD. */
+#define PHY_CALIBRATE_DIFF_GAIN_CMD (7)
+
+struct iwl4965_calibration_cmd {
+ u8 opCode; /* PHY_CALIBRATE_DIFF_GAIN_CMD (7) */
+ u8 flags; /* not used */
+ __le16 reserved;
+ s8 diff_gain_a; /* see above */
+ s8 diff_gain_b;
+ s8 diff_gain_c;
+ u8 reserved1;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (12)
+ * Miscellaneous Commands:
+ *
+ *****************************************************************************/
+
+/*
+ * LEDs Command & Response
+ * REPLY_LEDS_CMD = 0x48 (command, has simple generic response)
+ *
+ * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field),
+ * this command turns it on or off, or sets up a periodic blinking cycle.
+ */
+struct iwl4965_led_cmd {
+ __le32 interval; /* "interval" in uSec */
+ u8 id; /* 1: Activity, 2: Link, 3: Tech */
+ u8 off; /* # intervals off while blinking;
+ * "0", with >0 "on" value, turns LED on */
+ u8 on; /* # intervals on while blinking;
+ * "0", regardless of "off", turns LED off */
+ u8 reserved;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (13)
+ * Union of all expected notifications/responses:
+ *
+ *****************************************************************************/
+
+struct iwl4965_rx_packet {
+ __le32 len;
+ struct iwl4965_cmd_header hdr;
+ union {
+ struct iwl4965_alive_resp alive_frame;
+ struct iwl4965_rx_frame rx_frame;
+ struct iwl4965_tx_resp tx_resp;
+ struct iwl4965_spectrum_notification spectrum_notif;
+ struct iwl4965_csa_notification csa_notif;
+ struct iwl4965_error_resp err_resp;
+ struct iwl4965_card_state_notif card_state_notif;
+ struct iwl4965_beacon_notif beacon_status;
+ struct iwl4965_add_sta_resp add_sta;
+ struct iwl4965_sleep_notification sleep_notif;
+ struct iwl4965_spectrum_resp spectrum;
+ struct iwl4965_notif_statistics stats;
+ struct iwl4965_compressed_ba_resp compressed_ba;
+ struct iwl4965_missed_beacon_notif missed_beacon;
+ __le32 status;
+ u8 raw[0];
+ } u;
+} __attribute__ ((packed));
+
+#define IWL_RX_FRAME_SIZE (4 + sizeof(struct iwl4965_rx_frame))
+
+#endif /* __iwl4965_commands_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-debug.h b/drivers/net/wireless/iwlwifi/iwl-4965-debug.h
new file mode 100644
index 0000000..00bc1fa
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-debug.h
@@ -0,0 +1,152 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
+ *
+ * Portions of this file are derived from the ipw3945 project.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#ifndef __iwl4965_debug_h__
+#define __iwl4965_debug_h__
+
+#ifdef CONFIG_IWL4965_DEBUG
+extern u32 iwl4965_debug_level;
+#define IWL_DEBUG(level, fmt, args...) \
+do { if (iwl4965_debug_level & (level)) \
+ printk(KERN_ERR DRV_NAME": %c %s " fmt, \
+ in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
+
+#define IWL_DEBUG_LIMIT(level, fmt, args...) \
+do { if ((iwl4965_debug_level & (level)) && net_ratelimit()) \
+ printk(KERN_ERR DRV_NAME": %c %s " fmt, \
+ in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
+#else
+static inline void IWL_DEBUG(int level, const char *fmt, ...)
+{
+}
+static inline void IWL_DEBUG_LIMIT(int level, const char *fmt, ...)
+{
+}
+#endif /* CONFIG_IWL4965_DEBUG */
+
+/*
+ * To use the debug system;
+ *
+ * If you are defining a new debug classification, simply add it to the #define
+ * list here in the form of:
+ *
+ * #define IWL_DL_xxxx VALUE
+ *
+ * shifting value to the left one bit from the previous entry. xxxx should be
+ * the name of the classification (for example, WEP)
+ *
+ * You then need to either add a IWL_xxxx_DEBUG() macro definition for your
+ * classification, or use IWL_DEBUG(IWL_DL_xxxx, ...) whenever you want
+ * to send output to that classification.
+ *
+ * To add your debug level to the list of levels seen when you perform
+ *
+ * % cat /proc/net/iwl/debug_level
+ *
+ * you simply need to add your entry to the iwl4965_debug_levels array.
+ *
+ * If you do not see debug_level in /proc/net/iwl then you do not have
+ * CONFIG_IWL4965_DEBUG defined in your kernel configuration
+ *
+ */
+
+#define IWL_DL_INFO (1<<0)
+#define IWL_DL_MAC80211 (1<<1)
+#define IWL_DL_HOST_COMMAND (1<<2)
+#define IWL_DL_STATE (1<<3)
+
+#define IWL_DL_RADIO (1<<7)
+#define IWL_DL_POWER (1<<8)
+#define IWL_DL_TEMP (1<<9)
+
+#define IWL_DL_NOTIF (1<<10)
+#define IWL_DL_SCAN (1<<11)
+#define IWL_DL_ASSOC (1<<12)
+#define IWL_DL_DROP (1<<13)
+
+#define IWL_DL_TXPOWER (1<<14)
+
+#define IWL_DL_AP (1<<15)
+
+#define IWL_DL_FW (1<<16)
+#define IWL_DL_RF_KILL (1<<17)
+#define IWL_DL_FW_ERRORS (1<<18)
+
+#define IWL_DL_LED (1<<19)
+
+#define IWL_DL_RATE (1<<20)
+
+#define IWL_DL_CALIB (1<<21)
+#define IWL_DL_WEP (1<<22)
+#define IWL_DL_TX (1<<23)
+#define IWL_DL_RX (1<<24)
+#define IWL_DL_ISR (1<<25)
+#define IWL_DL_HT (1<<26)
+#define IWL_DL_IO (1<<27)
+#define IWL_DL_11H (1<<28)
+
+#define IWL_DL_STATS (1<<29)
+#define IWL_DL_TX_REPLY (1<<30)
+#define IWL_DL_QOS (1<<31)
+
+#define IWL_ERROR(f, a...) printk(KERN_ERR DRV_NAME ": " f, ## a)
+#define IWL_WARNING(f, a...) printk(KERN_WARNING DRV_NAME ": " f, ## a)
+#define IWL_DEBUG_INFO(f, a...) IWL_DEBUG(IWL_DL_INFO, f, ## a)
+
+#define IWL_DEBUG_MAC80211(f, a...) IWL_DEBUG(IWL_DL_MAC80211, f, ## a)
+#define IWL_DEBUG_TEMP(f, a...) IWL_DEBUG(IWL_DL_TEMP, f, ## a)
+#define IWL_DEBUG_SCAN(f, a...) IWL_DEBUG(IWL_DL_SCAN, f, ## a)
+#define IWL_DEBUG_RX(f, a...) IWL_DEBUG(IWL_DL_RX, f, ## a)
+#define IWL_DEBUG_TX(f, a...) IWL_DEBUG(IWL_DL_TX, f, ## a)
+#define IWL_DEBUG_ISR(f, a...) IWL_DEBUG(IWL_DL_ISR, f, ## a)
+#define IWL_DEBUG_LED(f, a...) IWL_DEBUG(IWL_DL_LED, f, ## a)
+#define IWL_DEBUG_WEP(f, a...) IWL_DEBUG(IWL_DL_WEP, f, ## a)
+#define IWL_DEBUG_HC(f, a...) IWL_DEBUG(IWL_DL_HOST_COMMAND, f, ## a)
+#define IWL_DEBUG_CALIB(f, a...) IWL_DEBUG(IWL_DL_CALIB, f, ## a)
+#define IWL_DEBUG_FW(f, a...) IWL_DEBUG(IWL_DL_FW, f, ## a)
+#define IWL_DEBUG_RF_KILL(f, a...) IWL_DEBUG(IWL_DL_RF_KILL, f, ## a)
+#define IWL_DEBUG_DROP(f, a...) IWL_DEBUG(IWL_DL_DROP, f, ## a)
+#define IWL_DEBUG_DROP_LIMIT(f, a...) IWL_DEBUG_LIMIT(IWL_DL_DROP, f, ## a)
+#define IWL_DEBUG_AP(f, a...) IWL_DEBUG(IWL_DL_AP, f, ## a)
+#define IWL_DEBUG_TXPOWER(f, a...) IWL_DEBUG(IWL_DL_TXPOWER, f, ## a)
+#define IWL_DEBUG_IO(f, a...) IWL_DEBUG(IWL_DL_IO, f, ## a)
+#define IWL_DEBUG_RATE(f, a...) IWL_DEBUG(IWL_DL_RATE, f, ## a)
+#define IWL_DEBUG_RATE_LIMIT(f, a...) IWL_DEBUG_LIMIT(IWL_DL_RATE, f, ## a)
+#define IWL_DEBUG_NOTIF(f, a...) IWL_DEBUG(IWL_DL_NOTIF, f, ## a)
+#define IWL_DEBUG_ASSOC(f, a...) IWL_DEBUG(IWL_DL_ASSOC | IWL_DL_INFO, f, ## a)
+#define IWL_DEBUG_ASSOC_LIMIT(f, a...) \
+ IWL_DEBUG_LIMIT(IWL_DL_ASSOC | IWL_DL_INFO, f, ## a)
+#define IWL_DEBUG_HT(f, a...) IWL_DEBUG(IWL_DL_HT, f, ## a)
+#define IWL_DEBUG_STATS(f, a...) IWL_DEBUG(IWL_DL_STATS, f, ## a)
+#define IWL_DEBUG_TX_REPLY(f, a...) IWL_DEBUG(IWL_DL_TX_REPLY, f, ## a)
+#define IWL_DEBUG_QOS(f, a...) IWL_DEBUG(IWL_DL_QOS, f, ## a)
+#define IWL_DEBUG_RADIO(f, a...) IWL_DEBUG(IWL_DL_RADIO, f, ## a)
+#define IWL_DEBUG_POWER(f, a...) IWL_DEBUG(IWL_DL_POWER, f, ## a)
+#define IWL_DEBUG_11H(f, a...) IWL_DEBUG(IWL_DL_11H, f, ## a)
+
+#endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h
index 5e958a7..7e7d6e4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h
@@ -8,7 +8,7 @@
* Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU Geeral Public License as
+ * it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
@@ -60,39 +60,618 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
+/*
+ * Please use this file (iwl-4965-hw.h) only for hardware-related definitions.
+ * Use iwl-4965-commands.h for uCode API definitions.
+ * Use iwl-4965.h for driver implementation definitions.
+ */
#ifndef __iwl_4965_hw_h__
#define __iwl_4965_hw_h__
-#define IWL_RX_BUF_SIZE (4 * 1024)
-#define IWL_MAX_BSM_SIZE BSM_SRAM_SIZE
-#define IWL_MAX_INST_SIZE (96 * 1024)
-#define IWL_MAX_DATA_SIZE (40 * 1024)
-
-/********************* START TXPOWER *****************************************/
+/*
+ * uCode queue management definitions ...
+ * Queue #4 is the command queue for 3945 and 4965; map it to Tx FIFO chnl 4.
+ * The first queue used for block-ack aggregation is #7 (4965 only).
+ * All block-ack aggregation queues should map to Tx DMA/FIFO channel 7.
+ */
+#define IWL_CMD_QUEUE_NUM 4
+#define IWL_CMD_FIFO_NUM 4
+#define IWL_BACK_QUEUE_FIRST_ID 7
+
+/* Tx rates */
+#define IWL_CCK_RATES 4
+#define IWL_OFDM_RATES 8
+#define IWL_HT_RATES 16
+#define IWL_MAX_RATES (IWL_CCK_RATES+IWL_OFDM_RATES+IWL_HT_RATES)
+
+/* Time constants */
+#define SHORT_SLOT_TIME 9
+#define LONG_SLOT_TIME 20
+
+/* RSSI to dBm */
+#define IWL_RSSI_OFFSET 44
+
+/*
+ * EEPROM related constants, enums, and structures.
+ */
+
+/*
+ * EEPROM access time values:
+ *
+ * Driver initiates EEPROM read by writing byte address << 1 to CSR_EEPROM_REG,
+ * then clearing (with subsequent read/modify/write) CSR_EEPROM_REG bit
+ * CSR_EEPROM_REG_BIT_CMD (0x2).
+ * Driver then polls CSR_EEPROM_REG for CSR_EEPROM_REG_READ_VALID_MSK (0x1).
+ * When polling, wait 10 uSec between polling loops, up to a maximum 5000 uSec.
+ * Driver reads 16-bit value from bits 31-16 of CSR_EEPROM_REG.
+ */
+#define IWL_EEPROM_ACCESS_TIMEOUT 5000 /* uSec */
+#define IWL_EEPROM_ACCESS_DELAY 10 /* uSec */
+
+/*
+ * Regulatory channel usage flags in EEPROM struct iwl4965_eeprom_channel.flags.
+ *
+ * IBSS and/or AP operation is allowed *only* on those channels with
+ * (VALID && IBSS && ACTIVE && !RADAR). This restriction is in place because
+ * RADAR detection is not supported by the 4965 driver, but is a
+ * requirement for establishing a new network for legal operation on channels
+ * requiring RADAR detection or restricting ACTIVE scanning.
+ *
+ * NOTE: "WIDE" flag does not indicate anything about "FAT" 40 MHz channels.
+ * It only indicates that 20 MHz channel use is supported; FAT channel
+ * usage is indicated by a separate set of regulatory flags for each
+ * FAT channel pair.
+ *
+ * NOTE: Using a channel inappropriately will result in a uCode error!
+ */
enum {
- HT_IE_EXT_CHANNEL_NONE = 0,
- HT_IE_EXT_CHANNEL_ABOVE,
- HT_IE_EXT_CHANNEL_INVALID,
- HT_IE_EXT_CHANNEL_BELOW,
- HT_IE_EXT_CHANNEL_MAX
+ EEPROM_CHANNEL_VALID = (1 << 0), /* usable for this SKU/geo */
+ EEPROM_CHANNEL_IBSS = (1 << 1), /* usable as an IBSS channel */
+ /* Bit 2 Reserved */
+ EEPROM_CHANNEL_ACTIVE = (1 << 3), /* active scanning allowed */
+ EEPROM_CHANNEL_RADAR = (1 << 4), /* radar detection required */
+ EEPROM_CHANNEL_WIDE = (1 << 5), /* 20 MHz channel okay */
+ EEPROM_CHANNEL_NARROW = (1 << 6), /* 10 MHz channel (not used) */
+ EEPROM_CHANNEL_DFS = (1 << 7), /* dynamic freq selection candidate */
};
-enum {
- CALIB_CH_GROUP_1 = 0,
- CALIB_CH_GROUP_2 = 1,
- CALIB_CH_GROUP_3 = 2,
- CALIB_CH_GROUP_4 = 3,
- CALIB_CH_GROUP_5 = 4,
- CALIB_CH_GROUP_MAX
-};
+/* SKU Capabilities */
+#define EEPROM_SKU_CAP_SW_RF_KILL_ENABLE (1 << 0)
+#define EEPROM_SKU_CAP_HW_RF_KILL_ENABLE (1 << 1)
+
+/* *regulatory* channel data format in eeprom, one for each channel.
+ * There are separate entries for FAT (40 MHz) vs. normal (20 MHz) channels. */
+struct iwl4965_eeprom_channel {
+ u8 flags; /* EEPROM_CHANNEL_* flags copied from EEPROM */
+ s8 max_power_avg; /* max power (dBm) on this chnl, limit 31 */
+} __attribute__ ((packed));
+
+/* 4965 has two radio transmitters (and 3 radio receivers) */
+#define EEPROM_TX_POWER_TX_CHAINS (2)
+
+/* 4965 has room for up to 8 sets of txpower calibration data */
+#define EEPROM_TX_POWER_BANDS (8)
+
+/* 4965 factory calibration measures txpower gain settings for
+ * each of 3 target output levels */
+#define EEPROM_TX_POWER_MEASUREMENTS (3)
+
+/* 4965 driver does not work with txpower calibration version < 5.
+ * Look for this in calib_version member of struct iwl4965_eeprom. */
+#define EEPROM_TX_POWER_VERSION_NEW (5)
+
+
+/*
+ * 4965 factory calibration data for one txpower level, on one channel,
+ * measured on one of the 2 tx chains (radio transmitter and associated
+ * antenna). EEPROM contains:
+ *
+ * 1) Temperature (degrees Celsius) of device when measurement was made.
+ *
+ * 2) Gain table index used to achieve the target measurement power.
+ * This refers to the "well-known" gain tables (see iwl-4965-hw.h).
+ *
+ * 3) Actual measured output power, in half-dBm ("34" = 17 dBm).
+ *
+ * 4) RF power amplifier detector level measurement (not used).
+ */
+struct iwl4965_eeprom_calib_measure {
+ u8 temperature; /* Device temperature (Celsius) */
+ u8 gain_idx; /* Index into gain table */
+ u8 actual_pow; /* Measured RF output power, half-dBm */
+ s8 pa_det; /* Power amp detector level (not used) */
+} __attribute__ ((packed));
+
+
+/*
+ * 4965 measurement set for one channel. EEPROM contains:
+ *
+ * 1) Channel number measured
+ *
+ * 2) Measurements for each of 3 power levels for each of 2 radio transmitters
+ * (a.k.a. "tx chains") (6 measurements altogether)
+ */
+struct iwl4965_eeprom_calib_ch_info {
+ u8 ch_num;
+ struct iwl4965_eeprom_calib_measure measurements[EEPROM_TX_POWER_TX_CHAINS]
+ [EEPROM_TX_POWER_MEASUREMENTS];
+} __attribute__ ((packed));
+
+/*
+ * 4965 txpower subband info.
+ *
+ * For each frequency subband, EEPROM contains the following:
+ *
+ * 1) First and last channels within range of the subband. "0" values
+ * indicate that this sample set is not being used.
+ *
+ * 2) Sample measurement sets for 2 channels close to the range endpoints.
+ */
+struct iwl4965_eeprom_calib_subband_info {
+ u8 ch_from; /* channel number of lowest channel in subband */
+ u8 ch_to; /* channel number of highest channel in subband */
+ struct iwl4965_eeprom_calib_ch_info ch1;
+ struct iwl4965_eeprom_calib_ch_info ch2;
+} __attribute__ ((packed));
+
+
+/*
+ * 4965 txpower calibration info. EEPROM contains:
+ *
+ * 1) Factory-measured saturation power levels (maximum levels at which
+ * tx power amplifier can output a signal without too much distortion).
+ * There is one level for 2.4 GHz band and one for 5 GHz band. These
+ * values apply to all channels within each of the bands.
+ *
+ * 2) Factory-measured power supply voltage level. This is assumed to be
+ * constant (i.e. same value applies to all channels/bands) while the
+ * factory measurements are being made.
+ *
+ * 3) Up to 8 sets of factory-measured txpower calibration values.
+ * These are for different frequency ranges, since txpower gain
+ * characteristics of the analog radio circuitry vary with frequency.
+ *
+ * Not all sets need to be filled with data;
+ * struct iwl4965_eeprom_calib_subband_info contains range of channels
+ * (0 if unused) for each set of data.
+ */
+struct iwl4965_eeprom_calib_info {
+ u8 saturation_power24; /* half-dBm (e.g. "34" = 17 dBm) */
+ u8 saturation_power52; /* half-dBm */
+ s16 voltage; /* signed */
+ struct iwl4965_eeprom_calib_subband_info band_info[EEPROM_TX_POWER_BANDS];
+} __attribute__ ((packed));
+
+
+/*
+ * 4965 EEPROM map
+ */
+struct iwl4965_eeprom {
+ u8 reserved0[16];
+#define EEPROM_DEVICE_ID (2*0x08) /* 2 bytes */
+ u16 device_id; /* abs.ofs: 16 */
+ u8 reserved1[2];
+#define EEPROM_PMC (2*0x0A) /* 2 bytes */
+ u16 pmc; /* abs.ofs: 20 */
+ u8 reserved2[20];
+#define EEPROM_MAC_ADDRESS (2*0x15) /* 6 bytes */
+ u8 mac_address[6]; /* abs.ofs: 42 */
+ u8 reserved3[58];
+#define EEPROM_BOARD_REVISION (2*0x35) /* 2 bytes */
+ u16 board_revision; /* abs.ofs: 106 */
+ u8 reserved4[11];
+#define EEPROM_BOARD_PBA_NUMBER (2*0x3B+1) /* 9 bytes */
+ u8 board_pba_number[9]; /* abs.ofs: 119 */
+ u8 reserved5[8];
+#define EEPROM_VERSION (2*0x44) /* 2 bytes */
+ u16 version; /* abs.ofs: 136 */
+#define EEPROM_SKU_CAP (2*0x45) /* 1 bytes */
+ u8 sku_cap; /* abs.ofs: 138 */
+#define EEPROM_LEDS_MODE (2*0x45+1) /* 1 bytes */
+ u8 leds_mode; /* abs.ofs: 139 */
+#define EEPROM_OEM_MODE (2*0x46) /* 2 bytes */
+ u16 oem_mode;
+#define EEPROM_WOWLAN_MODE (2*0x47) /* 2 bytes */
+ u16 wowlan_mode; /* abs.ofs: 142 */
+#define EEPROM_LEDS_TIME_INTERVAL (2*0x48) /* 2 bytes */
+ u16 leds_time_interval; /* abs.ofs: 144 */
+#define EEPROM_LEDS_OFF_TIME (2*0x49) /* 1 bytes */
+ u8 leds_off_time; /* abs.ofs: 146 */
+#define EEPROM_LEDS_ON_TIME (2*0x49+1) /* 1 bytes */
+ u8 leds_on_time; /* abs.ofs: 147 */
+#define EEPROM_ALMGOR_M_VERSION (2*0x4A) /* 1 bytes */
+ u8 almgor_m_version; /* abs.ofs: 148 */
+#define EEPROM_ANTENNA_SWITCH_TYPE (2*0x4A+1) /* 1 bytes */
+ u8 antenna_switch_type; /* abs.ofs: 149 */
+ u8 reserved6[8];
+#define EEPROM_4965_BOARD_REVISION (2*0x4F) /* 2 bytes */
+ u16 board_revision_4965; /* abs.ofs: 158 */
+ u8 reserved7[13];
+#define EEPROM_4965_BOARD_PBA (2*0x56+1) /* 9 bytes */
+ u8 board_pba_number_4965[9]; /* abs.ofs: 173 */
+ u8 reserved8[10];
+#define EEPROM_REGULATORY_SKU_ID (2*0x60) /* 4 bytes */
+ u8 sku_id[4]; /* abs.ofs: 192 */
+
+/*
+ * Per-channel regulatory data.
+ *
+ * Each channel that *might* be supported by 3945 or 4965 has a fixed location
+ * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
+ * txpower (MSB).
+ *
+ * Entries immediately below are for 20 MHz channel width. FAT (40 MHz)
+ * channels (only for 4965, not supported by 3945) appear later in the EEPROM.
+ *
+ * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
+ */
+#define EEPROM_REGULATORY_BAND_1 (2*0x62) /* 2 bytes */
+ u16 band_1_count; /* abs.ofs: 196 */
+#define EEPROM_REGULATORY_BAND_1_CHANNELS (2*0x63) /* 28 bytes */
+ struct iwl4965_eeprom_channel band_1_channels[14]; /* abs.ofs: 196 */
+
+/*
+ * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196,
+ * 5.0 GHz channels 7, 8, 11, 12, 16
+ * (4915-5080MHz) (none of these is ever supported)
+ */
+#define EEPROM_REGULATORY_BAND_2 (2*0x71) /* 2 bytes */
+ u16 band_2_count; /* abs.ofs: 226 */
+#define EEPROM_REGULATORY_BAND_2_CHANNELS (2*0x72) /* 26 bytes */
+ struct iwl4965_eeprom_channel band_2_channels[13]; /* abs.ofs: 228 */
+
+/*
+ * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
+ * (5170-5320MHz)
+ */
+#define EEPROM_REGULATORY_BAND_3 (2*0x7F) /* 2 bytes */
+ u16 band_3_count; /* abs.ofs: 254 */
+#define EEPROM_REGULATORY_BAND_3_CHANNELS (2*0x80) /* 24 bytes */
+ struct iwl4965_eeprom_channel band_3_channels[12]; /* abs.ofs: 256 */
+
+/*
+ * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
+ * (5500-5700MHz)
+ */
+#define EEPROM_REGULATORY_BAND_4 (2*0x8C) /* 2 bytes */
+ u16 band_4_count; /* abs.ofs: 280 */
+#define EEPROM_REGULATORY_BAND_4_CHANNELS (2*0x8D) /* 22 bytes */
+ struct iwl4965_eeprom_channel band_4_channels[11]; /* abs.ofs: 282 */
+
+/*
+ * 5.7 GHz channels 145, 149, 153, 157, 161, 165
+ * (5725-5825MHz)
+ */
+#define EEPROM_REGULATORY_BAND_5 (2*0x98) /* 2 bytes */
+ u16 band_5_count; /* abs.ofs: 304 */
+#define EEPROM_REGULATORY_BAND_5_CHANNELS (2*0x99) /* 12 bytes */
+ struct iwl4965_eeprom_channel band_5_channels[6]; /* abs.ofs: 306 */
+
+ u8 reserved10[2];
+
+
+/*
+ * 2.4 GHz FAT channels 1 (5), 2 (6), 3 (7), 4 (8), 5 (9), 6 (10), 7 (11)
+ *
+ * The channel listed is the center of the lower 20 MHz half of the channel.
+ * The overall center frequency is actually 2 channels (10 MHz) above that,
+ * and the upper half of each FAT channel is centered 4 channels (20 MHz) away
+ * from the lower half; e.g. the upper half of FAT channel 1 is channel 5,
+ * and the overall FAT channel width centers on channel 3.
+ *
+ * NOTE: The RXON command uses 20 MHz channel numbers to specify the
+ * control channel to which to tune. RXON also specifies whether the
+ * control channel is the upper or lower half of a FAT channel.
+ *
+ * NOTE: 4965 does not support FAT channels on 2.4 GHz.
+ */
+#define EEPROM_REGULATORY_BAND_24_FAT_CHANNELS (2*0xA0) /* 14 bytes */
+ struct iwl4965_eeprom_channel band_24_channels[7]; /* abs.ofs: 320 */
+ u8 reserved11[2];
+
+/*
+ * 5.2 GHz FAT channels 36 (40), 44 (48), 52 (56), 60 (64),
+ * 100 (104), 108 (112), 116 (120), 124 (128), 132 (136), 149 (153), 157 (161)
+ */
+#define EEPROM_REGULATORY_BAND_52_FAT_CHANNELS (2*0xA8) /* 22 bytes */
+ struct iwl4965_eeprom_channel band_52_channels[11]; /* abs.ofs: 336 */
+ u8 reserved12[6];
+
+/*
+ * 4965 driver requires txpower calibration format version 5 or greater.
+ * Driver does not work with txpower calibration version < 5.
+ * This value is simply a 16-bit number, no major/minor versions here.
+ */
+#define EEPROM_CALIB_VERSION_OFFSET (2*0xB6) /* 2 bytes */
+ u16 calib_version; /* abs.ofs: 364 */
+ u8 reserved13[2];
+ u8 reserved14[96]; /* abs.ofs: 368 */
+
+/*
+ * 4965 Txpower calibration data.
+ */
+#define EEPROM_IWL_CALIB_TXPOWER_OFFSET (2*0xE8) /* 48 bytes */
+ struct iwl4965_eeprom_calib_info calib_info; /* abs.ofs: 464 */
+
+ u8 reserved16[140]; /* fill out to full 1024 byte block */
-#define POWER_TABLE_NUM_HT_OFDM_ENTRIES (32)
-/* Temperature calibration offset is 3% 0C in Kelvin */
+} __attribute__ ((packed));
+
+#define IWL_EEPROM_IMAGE_SIZE 1024
+
+/* End of EEPROM */
+
+#include "iwl-4965-commands.h"
+
+#define PCI_LINK_CTRL 0x0F0
+#define PCI_POWER_SOURCE 0x0C8
+#define PCI_REG_WUM8 0x0E8
+#define PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT (0x80000000)
+
+/*=== CSR (control and status registers) ===*/
+#define CSR_BASE (0x000)
+
+#define CSR_SW_VER (CSR_BASE+0x000)
+#define CSR_HW_IF_CONFIG_REG (CSR_BASE+0x000) /* hardware interface config */
+#define CSR_INT_COALESCING (CSR_BASE+0x004) /* accum ints, 32-usec units */
+#define CSR_INT (CSR_BASE+0x008) /* host interrupt status/ack */
+#define CSR_INT_MASK (CSR_BASE+0x00c) /* host interrupt enable */
+#define CSR_FH_INT_STATUS (CSR_BASE+0x010) /* busmaster int status/ack*/
+#define CSR_GPIO_IN (CSR_BASE+0x018) /* read external chip pins */
+#define CSR_RESET (CSR_BASE+0x020) /* busmaster enable, NMI, etc*/
+#define CSR_GP_CNTRL (CSR_BASE+0x024)
+
+/*
+ * Hardware revision info
+ * Bit fields:
+ * 31-8: Reserved
+ * 7-4: Type of device: 0x0 = 4965, 0xd = 3945
+ * 3-2: Revision step: 0 = A, 1 = B, 2 = C, 3 = D
+ * 1-0: "Dash" value, as in A-1, etc.
+ *
+ * NOTE: Revision step affects calculation of CCK txpower for 4965.
+ */
+#define CSR_HW_REV (CSR_BASE+0x028)
+
+/* EEPROM reads */
+#define CSR_EEPROM_REG (CSR_BASE+0x02c)
+#define CSR_EEPROM_GP (CSR_BASE+0x030)
+#define CSR_GP_UCODE (CSR_BASE+0x044)
+#define CSR_UCODE_DRV_GP1 (CSR_BASE+0x054)
+#define CSR_UCODE_DRV_GP1_SET (CSR_BASE+0x058)
+#define CSR_UCODE_DRV_GP1_CLR (CSR_BASE+0x05c)
+#define CSR_UCODE_DRV_GP2 (CSR_BASE+0x060)
+#define CSR_GIO_CHICKEN_BITS (CSR_BASE+0x100)
+
+/*
+ * Indicates hardware rev, to determine CCK backoff for txpower calculation.
+ * Bit fields:
+ * 3-2: 0 = A, 1 = B, 2 = C, 3 = D step
+ */
+#define CSR_HW_REV_WA_REG (CSR_BASE+0x22C)
+
+/* Hardware interface configuration bits */
+#define CSR_HW_IF_CONFIG_REG_BIT_KEDRON_R (0x00000010)
+#define CSR_HW_IF_CONFIG_REG_MSK_BOARD_VER (0x00000C00)
+#define CSR_HW_IF_CONFIG_REG_BIT_MAC_SI (0x00000100)
+#define CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI (0x00000200)
+#define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM (0x00200000)
+
+/* interrupt flags in INTA, set by uCode or hardware (e.g. dma),
+ * acknowledged (reset) by host writing "1" to flagged bits. */
+#define CSR_INT_BIT_FH_RX (1<<31) /* Rx DMA, cmd responses, FH_INT[17:16] */
+#define CSR_INT_BIT_HW_ERR (1<<29) /* DMA hardware error FH_INT[31] */
+#define CSR_INT_BIT_DNLD (1<<28) /* uCode Download */
+#define CSR_INT_BIT_FH_TX (1<<27) /* Tx DMA FH_INT[1:0] */
+#define CSR_INT_BIT_MAC_CLK_ACTV (1<<26) /* NIC controller's clock toggled on/off */
+#define CSR_INT_BIT_SW_ERR (1<<25) /* uCode error */
+#define CSR_INT_BIT_RF_KILL (1<<7) /* HW RFKILL switch GP_CNTRL[27] toggled */
+#define CSR_INT_BIT_CT_KILL (1<<6) /* Critical temp (chip too hot) rfkill */
+#define CSR_INT_BIT_SW_RX (1<<3) /* Rx, command responses, 3945 */
+#define CSR_INT_BIT_WAKEUP (1<<1) /* NIC controller waking up (pwr mgmt) */
+#define CSR_INT_BIT_ALIVE (1<<0) /* uCode interrupts once it initializes */
+
+#define CSR_INI_SET_MASK (CSR_INT_BIT_FH_RX | \
+ CSR_INT_BIT_HW_ERR | \
+ CSR_INT_BIT_FH_TX | \
+ CSR_INT_BIT_SW_ERR | \
+ CSR_INT_BIT_RF_KILL | \
+ CSR_INT_BIT_SW_RX | \
+ CSR_INT_BIT_WAKEUP | \
+ CSR_INT_BIT_ALIVE)
+
+/* interrupt flags in FH (flow handler) (PCI busmaster DMA) */
+#define CSR_FH_INT_BIT_ERR (1<<31) /* Error */
+#define CSR_FH_INT_BIT_HI_PRIOR (1<<30) /* High priority Rx, bypass coalescing */
+#define CSR_FH_INT_BIT_RX_CHNL1 (1<<17) /* Rx channel 1 */
+#define CSR_FH_INT_BIT_RX_CHNL0 (1<<16) /* Rx channel 0 */
+#define CSR_FH_INT_BIT_TX_CHNL1 (1<<1) /* Tx channel 1 */
+#define CSR_FH_INT_BIT_TX_CHNL0 (1<<0) /* Tx channel 0 */
+
+#define CSR_FH_INT_RX_MASK (CSR_FH_INT_BIT_HI_PRIOR | \
+ CSR_FH_INT_BIT_RX_CHNL1 | \
+ CSR_FH_INT_BIT_RX_CHNL0)
+
+#define CSR_FH_INT_TX_MASK (CSR_FH_INT_BIT_TX_CHNL1 | \
+ CSR_FH_INT_BIT_TX_CHNL0)
+
+
+/* RESET */
+#define CSR_RESET_REG_FLAG_NEVO_RESET (0x00000001)
+#define CSR_RESET_REG_FLAG_FORCE_NMI (0x00000002)
+#define CSR_RESET_REG_FLAG_SW_RESET (0x00000080)
+#define CSR_RESET_REG_FLAG_MASTER_DISABLED (0x00000100)
+#define CSR_RESET_REG_FLAG_STOP_MASTER (0x00000200)
+
+/* GP (general purpose) CONTROL */
+#define CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY (0x00000001)
+#define CSR_GP_CNTRL_REG_FLAG_INIT_DONE (0x00000004)
+#define CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ (0x00000008)
+#define CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP (0x00000010)
+
+#define CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN (0x00000001)
+
+#define CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE (0x07000000)
+#define CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE (0x04000000)
+#define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW (0x08000000)
+
+
+/* EEPROM REG */
+#define CSR_EEPROM_REG_READ_VALID_MSK (0x00000001)
+#define CSR_EEPROM_REG_BIT_CMD (0x00000002)
+
+/* EEPROM GP */
+#define CSR_EEPROM_GP_VALID_MSK (0x00000006)
+#define CSR_EEPROM_GP_BAD_SIGNATURE (0x00000000)
+#define CSR_EEPROM_GP_IF_OWNER_MSK (0x00000180)
+
+/* UCODE DRV GP */
+#define CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP (0x00000001)
+#define CSR_UCODE_SW_BIT_RFKILL (0x00000002)
+#define CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED (0x00000004)
+#define CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT (0x00000008)
+
+/* GPIO */
+#define CSR_GPIO_IN_BIT_AUX_POWER (0x00000200)
+#define CSR_GPIO_IN_VAL_VAUX_PWR_SRC (0x00000000)
+#define CSR_GPIO_IN_VAL_VMAIN_PWR_SRC CSR_GPIO_IN_BIT_AUX_POWER
+
+/* GI Chicken Bits */
+#define CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX (0x00800000)
+#define CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER (0x20000000)
+
+/*=== HBUS (Host-side Bus) ===*/
+#define HBUS_BASE (0x400)
+
+/*
+ * Registers for accessing device's internal SRAM memory (e.g. SCD SRAM
+ * structures, error log, event log, verifying uCode load).
+ * First write to address register, then read from or write to data register
+ * to complete the job. Once the address register is set up, accesses to
+ * data registers auto-increment the address by one dword.
+ * Bit usage for address registers (read or write):
+ * 0-31: memory address within device
+ */
+#define HBUS_TARG_MEM_RADDR (HBUS_BASE+0x00c)
+#define HBUS_TARG_MEM_WADDR (HBUS_BASE+0x010)
+#define HBUS_TARG_MEM_WDAT (HBUS_BASE+0x018)
+#define HBUS_TARG_MEM_RDAT (HBUS_BASE+0x01c)
+
+/*
+ * Registers for accessing device's internal peripheral registers
+ * (e.g. SCD, BSM, etc.). First write to address register,
+ * then read from or write to data register to complete the job.
+ * Bit usage for address registers (read or write):
+ * 0-15: register address (offset) within device
+ * 24-25: (# bytes - 1) to read or write (e.g. 3 for dword)
+ */
+#define HBUS_TARG_PRPH_WADDR (HBUS_BASE+0x044)
+#define HBUS_TARG_PRPH_RADDR (HBUS_BASE+0x048)
+#define HBUS_TARG_PRPH_WDAT (HBUS_BASE+0x04c)
+#define HBUS_TARG_PRPH_RDAT (HBUS_BASE+0x050)
+
+/*
+ * Per-Tx-queue write pointer (index, really!) (3945 and 4965).
+ * Driver sets this to indicate index to next TFD that driver will fill
+ * (1 past latest filled).
+ * Bit usage:
+ * 0-7: queue write index (0-255)
+ * 11-8: queue selector (0-15)
+ */
+#define HBUS_TARG_WRPTR (HBUS_BASE+0x060)
+
+#define HBUS_TARG_MBX_C (HBUS_BASE+0x030)
+
+#define HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED (0x00000004)
+
+#define TFD_QUEUE_SIZE_MAX (256)
+
+#define IWL_NUM_SCAN_RATES (2)
+
+#define IWL_DEFAULT_TX_RETRY 15
+
+#define RX_QUEUE_SIZE 256
+#define RX_QUEUE_MASK 255
+#define RX_QUEUE_SIZE_LOG 8
+
+#define TFD_TX_CMD_SLOTS 256
+#define TFD_CMD_SLOTS 32
+
+#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl4965_cmd) - \
+ sizeof(struct iwl4965_cmd_meta))
+
+/*
+ * RX related structures and functions
+ */
+#define RX_FREE_BUFFERS 64
+#define RX_LOW_WATERMARK 8
+
+/* Size of one Rx buffer in host DRAM */
+#define IWL_RX_BUF_SIZE_4K (4 * 1024)
+#define IWL_RX_BUF_SIZE_8K (8 * 1024)
+
+/* Sizes and addresses for instruction and data memory (SRAM) in
+ * 4965's embedded processor. Driver access is via HBUS_TARG_MEM_* regs. */
+#define RTC_INST_LOWER_BOUND (0x000000)
+#define KDR_RTC_INST_UPPER_BOUND (0x018000)
+
+#define RTC_DATA_LOWER_BOUND (0x800000)
+#define KDR_RTC_DATA_UPPER_BOUND (0x80A000)
+
+#define KDR_RTC_INST_SIZE (KDR_RTC_INST_UPPER_BOUND - RTC_INST_LOWER_BOUND)
+#define KDR_RTC_DATA_SIZE (KDR_RTC_DATA_UPPER_BOUND - RTC_DATA_LOWER_BOUND)
+
+#define IWL_MAX_INST_SIZE KDR_RTC_INST_SIZE
+#define IWL_MAX_DATA_SIZE KDR_RTC_DATA_SIZE
+
+/* Size of uCode instruction memory in bootstrap state machine */
+#define IWL_MAX_BSM_SIZE BSM_SRAM_SIZE
+
+static inline int iwl4965_hw_valid_rtc_data_addr(u32 addr)
+{
+ return (addr >= RTC_DATA_LOWER_BOUND) &&
+ (addr < KDR_RTC_DATA_UPPER_BOUND);
+}
+
+/********************* START TEMPERATURE *************************************/
+
+/**
+ * 4965 temperature calculation.
+ *
+ * The driver must calculate the device temperature before calculating
+ * a txpower setting (amplifier gain is temperature dependent). The
+ * calculation uses 4 measurements, 3 of which (R1, R2, R3) are calibration
+ * values used for the life of the driver, and one of which (R4) is the
+ * real-time temperature indicator.
+ *
+ * uCode provides all 4 values to the driver via the "initialize alive"
+ * notification (see struct iwl4965_init_alive_resp). After the runtime uCode
+ * image loads, uCode updates the R4 value via statistics notifications
+ * (see STATISTICS_NOTIFICATION), which occur after each received beacon
+ * when associated, or can be requested via REPLY_STATISTICS_CMD.
+ *
+ * NOTE: uCode provides the R4 value as a 23-bit signed value. Driver
+ * must sign-extend to 32 bits before applying formula below.
+ *
+ * Formula:
+ *
+ * degrees Kelvin = ((97 * 259 * (R4 - R2) / (R3 - R1)) / 100) + 8
+ *
+ * NOTE: The basic formula is 259 * (R4-R2) / (R3-R1). The 97/100 is
+ * an additional correction, which should be centered around 0 degrees
+ * Celsius (273 degrees Kelvin). The 8 (3 percent of 273) compensates for
+ * centering the 97/100 correction around 0 degrees K.
+ *
+ * Add 273 to Kelvin value to find degrees Celsius, for comparing current
+ * temperature with factory-measured temperatures when calculating txpower
+ * settings.
+ */
#define TEMPERATURE_CALIB_KELVIN_OFFSET 8
#define TEMPERATURE_CALIB_A_VAL 259
+/* Limit range of calculated temperature to be between these Kelvin values */
#define IWL_TX_POWER_TEMPERATURE_MIN (263)
#define IWL_TX_POWER_TEMPERATURE_MAX (410)
@@ -100,383 +679,875 @@ enum {
(((t) < IWL_TX_POWER_TEMPERATURE_MIN) || \
((t) > IWL_TX_POWER_TEMPERATURE_MAX))
-#define IWL_TX_POWER_ILLEGAL_TEMPERATURE (300)
+/********************* END TEMPERATURE ***************************************/
-#define IWL_TX_POWER_TEMPERATURE_DIFFERENCE (2)
+/********************* START TXPOWER *****************************************/
-#define IWL_TX_POWER_MIMO_REGULATORY_COMPENSATION (6)
+/**
+ * 4965 txpower calculations rely on information from three sources:
+ *
+ * 1) EEPROM
+ * 2) "initialize" alive notification
+ * 3) statistics notifications
+ *
+ * EEPROM data consists of:
+ *
+ * 1) Regulatory information (max txpower and channel usage flags) is provided
+ * separately for each channel that can possibly supported by 4965.
+ * 40 MHz wide (.11n fat) channels are listed separately from 20 MHz
+ * (legacy) channels.
+ *
+ * See struct iwl4965_eeprom_channel for format, and struct iwl4965_eeprom
+ * for locations in EEPROM.
+ *
+ * 2) Factory txpower calibration information is provided separately for
+ * sub-bands of contiguous channels. 2.4GHz has just one sub-band,
+ * but 5 GHz has several sub-bands.
+ *
+ * In addition, per-band (2.4 and 5 Ghz) saturation txpowers are provided.
+ *
+ * See struct iwl4965_eeprom_calib_info (and the tree of structures
+ * contained within it) for format, and struct iwl4965_eeprom for
+ * locations in EEPROM.
+ *
+ * "Initialization alive" notification (see struct iwl4965_init_alive_resp)
+ * consists of:
+ *
+ * 1) Temperature calculation parameters.
+ *
+ * 2) Power supply voltage measurement.
+ *
+ * 3) Tx gain compensation to balance 2 transmitters for MIMO use.
+ *
+ * Statistics notifications deliver:
+ *
+ * 1) Current values for temperature param R4.
+ */
+/**
+ * To calculate a txpower setting for a given desired target txpower, channel,
+ * modulation bit rate, and transmitter chain (4965 has 2 transmitters to
+ * support MIMO and transmit diversity), driver must do the following:
+ *
+ * 1) Compare desired txpower vs. (EEPROM) regulatory limit for this channel.
+ * Do not exceed regulatory limit; reduce target txpower if necessary.
+ *
+ * If setting up txpowers for MIMO rates (rate indexes 8-15, 24-31),
+ * 2 transmitters will be used simultaneously; driver must reduce the
+ * regulatory limit by 3 dB (half-power) for each transmitter, so the
+ * combined total output of the 2 transmitters is within regulatory limits.
+ *
+ *
+ * 2) Compare target txpower vs. (EEPROM) saturation txpower *reduced by
+ * backoff for this bit rate*. Do not exceed (saturation - backoff[rate]);
+ * reduce target txpower if necessary.
+ *
+ * Backoff values below are in 1/2 dB units (equivalent to steps in
+ * txpower gain tables):
+ *
+ * OFDM 6 - 36 MBit: 10 steps (5 dB)
+ * OFDM 48 MBit: 15 steps (7.5 dB)
+ * OFDM 54 MBit: 17 steps (8.5 dB)
+ * OFDM 60 MBit: 20 steps (10 dB)
+ * CCK all rates: 10 steps (5 dB)
+ *
+ * Backoff values apply to saturation txpower on a per-transmitter basis;
+ * when using MIMO (2 transmitters), each transmitter uses the same
+ * saturation level provided in EEPROM, and the same backoff values;
+ * no reduction (such as with regulatory txpower limits) is required.
+ *
+ * Saturation and Backoff values apply equally to 20 Mhz (legacy) channel
+ * widths and 40 Mhz (.11n fat) channel widths; there is no separate
+ * factory measurement for fat channels.
+ *
+ * The result of this step is the final target txpower. The rest of
+ * the steps figure out the proper settings for the device to achieve
+ * that target txpower.
+ *
+ *
+ * 3) Determine (EEPROM) calibration subband for the target channel, by
+ * comparing against first and last channels in each subband
+ * (see struct iwl4965_eeprom_calib_subband_info).
+ *
+ *
+ * 4) Linearly interpolate (EEPROM) factory calibration measurement sets,
+ * referencing the 2 factory-measured (sample) channels within the subband.
+ *
+ * Interpolation is based on difference between target channel's frequency
+ * and the sample channels' frequencies. Since channel numbers are based
+ * on frequency (5 MHz between each channel number), this is equivalent
+ * to interpolating based on channel number differences.
+ *
+ * Note that the sample channels may or may not be the channels at the
+ * edges of the subband. The target channel may be "outside" of the
+ * span of the sampled channels.
+ *
+ * Driver may choose the pair (for 2 Tx chains) of measurements (see
+ * struct iwl4965_eeprom_calib_ch_info) for which the actual measured
+ * txpower comes closest to the desired txpower. Usually, though,
+ * the middle set of measurements is closest to the regulatory limits,
+ * and is therefore a good choice for all txpower calculations (this
+ * assumes that high accuracy is needed for maximizing legal txpower,
+ * while lower txpower configurations do not need as much accuracy).
+ *
+ * Driver should interpolate both members of the chosen measurement pair,
+ * i.e. for both Tx chains (radio transmitters), unless the driver knows
+ * that only one of the chains will be used (e.g. only one tx antenna
+ * connected, but this should be unusual). The rate scaling algorithm
+ * switches antennas to find best performance, so both Tx chains will
+ * be used (although only one at a time) even for non-MIMO transmissions.
+ *
+ * Driver should interpolate factory values for temperature, gain table
+ * index, and actual power. The power amplifier detector values are
+ * not used by the driver.
+ *
+ * Sanity check: If the target channel happens to be one of the sample
+ * channels, the results should agree with the sample channel's
+ * measurements!
+ *
+ *
+ * 5) Find difference between desired txpower and (interpolated)
+ * factory-measured txpower. Using (interpolated) factory gain table index
+ * (shown elsewhere) as a starting point, adjust this index lower to
+ * increase txpower, or higher to decrease txpower, until the target
+ * txpower is reached. Each step in the gain table is 1/2 dB.
+ *
+ * For example, if factory measured txpower is 16 dBm, and target txpower
+ * is 13 dBm, add 6 steps to the factory gain index to reduce txpower
+ * by 3 dB.
+ *
+ *
+ * 6) Find difference between current device temperature and (interpolated)
+ * factory-measured temperature for sub-band. Factory values are in
+ * degrees Celsius. To calculate current temperature, see comments for
+ * "4965 temperature calculation".
+ *
+ * If current temperature is higher than factory temperature, driver must
+ * increase gain (lower gain table index), and vice versa.
+ *
+ * Temperature affects gain differently for different channels:
+ *
+ * 2.4 GHz all channels: 3.5 degrees per half-dB step
+ * 5 GHz channels 34-43: 4.5 degrees per half-dB step
+ * 5 GHz channels >= 44: 4.0 degrees per half-dB step
+ *
+ * NOTE: Temperature can increase rapidly when transmitting, especially
+ * with heavy traffic at high txpowers. Driver should update
+ * temperature calculations often under these conditions to
+ * maintain strong txpower in the face of rising temperature.
+ *
+ *
+ * 7) Find difference between current power supply voltage indicator
+ * (from "initialize alive") and factory-measured power supply voltage
+ * indicator (EEPROM).
+ *
+ * If the current voltage is higher (indicator is lower) than factory
+ * voltage, gain should be reduced (gain table index increased) by:
+ *
+ * (eeprom - current) / 7
+ *
+ * If the current voltage is lower (indicator is higher) than factory
+ * voltage, gain should be increased (gain table index decreased) by:
+ *
+ * 2 * (current - eeprom) / 7
+ *
+ * If number of index steps in either direction turns out to be > 2,
+ * something is wrong ... just use 0.
+ *
+ * NOTE: Voltage compensation is independent of band/channel.
+ *
+ * NOTE: "Initialize" uCode measures current voltage, which is assumed
+ * to be constant after this initial measurement. Voltage
+ * compensation for txpower (number of steps in gain table)
+ * may be calculated once and used until the next uCode bootload.
+ *
+ *
+ * 8) If setting up txpowers for MIMO rates (rate indexes 8-15, 24-31),
+ * adjust txpower for each transmitter chain, so txpower is balanced
+ * between the two chains. There are 5 pairs of tx_atten[group][chain]
+ * values in "initialize alive", one pair for each of 5 channel ranges:
+ *
+ * Group 0: 5 GHz channel 34-43
+ * Group 1: 5 GHz channel 44-70
+ * Group 2: 5 GHz channel 71-124
+ * Group 3: 5 GHz channel 125-200
+ * Group 4: 2.4 GHz all channels
+ *
+ * Add the tx_atten[group][chain] value to the index for the target chain.
+ * The values are signed, but are in pairs of 0 and a non-negative number,
+ * so as to reduce gain (if necessary) of the "hotter" channel. This
+ * avoids any need to double-check for regulatory compliance after
+ * this step.
+ *
+ *
+ * 9) If setting up for a CCK rate, lower the gain by adding a CCK compensation
+ * value to the index:
+ *
+ * Hardware rev B: 9 steps (4.5 dB)
+ * Hardware rev C: 5 steps (2.5 dB)
+ *
+ * Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG,
+ * bits [3:2], 1 = B, 2 = C.
+ *
+ * NOTE: This compensation is in addition to any saturation backoff that
+ * might have been applied in an earlier step.
+ *
+ *
+ * 10) Select the gain table, based on band (2.4 vs 5 GHz).
+ *
+ * Limit the adjusted index to stay within the table!
+ *
+ *
+ * 11) Read gain table entries for DSP and radio gain, place into appropriate
+ * location(s) in command (struct iwl4965_txpowertable_cmd).
+ */
+
+/* Limit range of txpower output target to be between these values */
#define IWL_TX_POWER_TARGET_POWER_MIN (0) /* 0 dBm = 1 milliwatt */
#define IWL_TX_POWER_TARGET_POWER_MAX (16) /* 16 dBm */
-/* timeout equivalent to 3 minutes */
-#define IWL_TX_POWER_TIMELIMIT_NOCALIB 1800000000
-
-#define IWL_TX_POWER_CCK_COMPENSATION (9)
-
-#define MIN_TX_GAIN_INDEX (0)
-#define MIN_TX_GAIN_INDEX_52GHZ_EXT (-9)
-#define MAX_TX_GAIN_INDEX_52GHZ (98)
-#define MIN_TX_GAIN_52GHZ (98)
-#define MAX_TX_GAIN_INDEX_24GHZ (98)
-#define MIN_TX_GAIN_24GHZ (98)
-#define MAX_TX_GAIN (0)
-#define MAX_TX_GAIN_52GHZ_EXT (-9)
+/**
+ * When MIMO is used (2 transmitters operating simultaneously), driver should
+ * limit each transmitter to deliver a max of 3 dB below the regulatory limit
+ * for the device. That is, use half power for each transmitter, so total
+ * txpower is within regulatory limits.
+ *
+ * The value "6" represents number of steps in gain table to reduce power 3 dB.
+ * Each step is 1/2 dB.
+ */
+#define IWL_TX_POWER_MIMO_REGULATORY_COMPENSATION (6)
+/**
+ * CCK gain compensation.
+ *
+ * When calculating txpowers for CCK, after making sure that the target power
+ * is within regulatory and saturation limits, driver must additionally
+ * back off gain by adding these values to the gain table index.
+ *
+ * Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG,
+ * bits [3:2], 1 = B, 2 = C.
+ */
+#define IWL_TX_POWER_CCK_COMPENSATION_B_STEP (9)
+#define IWL_TX_POWER_CCK_COMPENSATION_C_STEP (5)
+
+/*
+ * 4965 power supply voltage compensation for txpower
+ */
+#define TX_POWER_IWL_VOLTAGE_CODES_PER_03V (7)
+
+/**
+ * Gain tables.
+ *
+ * The following tables contain pair of values for setting txpower, i.e.
+ * gain settings for the output of the device's digital signal processor (DSP),
+ * and for the analog gain structure of the transmitter.
+ *
+ * Each entry in the gain tables represents a step of 1/2 dB. Note that these
+ * are *relative* steps, not indications of absolute output power. Output
+ * power varies with temperature, voltage, and channel frequency, and also
+ * requires consideration of average power (to satisfy regulatory constraints),
+ * and peak power (to avoid distortion of the output signal).
+ *
+ * Each entry contains two values:
+ * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained
+ * linear value that multiplies the output of the digital signal processor,
+ * before being sent to the analog radio.
+ * 2) Radio gain. This sets the analog gain of the radio Tx path.
+ * It is a coarser setting, and behaves in a logarithmic (dB) fashion.
+ *
+ * EEPROM contains factory calibration data for txpower. This maps actual
+ * measured txpower levels to gain settings in the "well known" tables
+ * below ("well-known" means here that both factory calibration *and* the
+ * driver work with the same table).
+ *
+ * There are separate tables for 2.4 GHz and 5 GHz bands. The 5 GHz table
+ * has an extension (into negative indexes), in case the driver needs to
+ * boost power setting for high device temperatures (higher than would be
+ * present during factory calibration). A 5 Ghz EEPROM index of "40"
+ * corresponds to the 49th entry in the table used by the driver.
+ */
+#define MIN_TX_GAIN_INDEX (0) /* highest gain, lowest idx, 2.4 */
+#define MIN_TX_GAIN_INDEX_52GHZ_EXT (-9) /* highest gain, lowest idx, 5 */
+
+/**
+ * 2.4 GHz gain table
+ *
+ * Index Dsp gain Radio gain
+ * 0 110 0x3f (highest gain)
+ * 1 104 0x3f
+ * 2 98 0x3f
+ * 3 110 0x3e
+ * 4 104 0x3e
+ * 5 98 0x3e
+ * 6 110 0x3d
+ * 7 104 0x3d
+ * 8 98 0x3d
+ * 9 110 0x3c
+ * 10 104 0x3c
+ * 11 98 0x3c
+ * 12 110 0x3b
+ * 13 104 0x3b
+ * 14 98 0x3b
+ * 15 110 0x3a
+ * 16 104 0x3a
+ * 17 98 0x3a
+ * 18 110 0x39
+ * 19 104 0x39
+ * 20 98 0x39
+ * 21 110 0x38
+ * 22 104 0x38
+ * 23 98 0x38
+ * 24 110 0x37
+ * 25 104 0x37
+ * 26 98 0x37
+ * 27 110 0x36
+ * 28 104 0x36
+ * 29 98 0x36
+ * 30 110 0x35
+ * 31 104 0x35
+ * 32 98 0x35
+ * 33 110 0x34
+ * 34 104 0x34
+ * 35 98 0x34
+ * 36 110 0x33
+ * 37 104 0x33
+ * 38 98 0x33
+ * 39 110 0x32
+ * 40 104 0x32
+ * 41 98 0x32
+ * 42 110 0x31
+ * 43 104 0x31
+ * 44 98 0x31
+ * 45 110 0x30
+ * 46 104 0x30
+ * 47 98 0x30
+ * 48 110 0x6
+ * 49 104 0x6
+ * 50 98 0x6
+ * 51 110 0x5
+ * 52 104 0x5
+ * 53 98 0x5
+ * 54 110 0x4
+ * 55 104 0x4
+ * 56 98 0x4
+ * 57 110 0x3
+ * 58 104 0x3
+ * 59 98 0x3
+ * 60 110 0x2
+ * 61 104 0x2
+ * 62 98 0x2
+ * 63 110 0x1
+ * 64 104 0x1
+ * 65 98 0x1
+ * 66 110 0x0
+ * 67 104 0x0
+ * 68 98 0x0
+ * 69 97 0
+ * 70 96 0
+ * 71 95 0
+ * 72 94 0
+ * 73 93 0
+ * 74 92 0
+ * 75 91 0
+ * 76 90 0
+ * 77 89 0
+ * 78 88 0
+ * 79 87 0
+ * 80 86 0
+ * 81 85 0
+ * 82 84 0
+ * 83 83 0
+ * 84 82 0
+ * 85 81 0
+ * 86 80 0
+ * 87 79 0
+ * 88 78 0
+ * 89 77 0
+ * 90 76 0
+ * 91 75 0
+ * 92 74 0
+ * 93 73 0
+ * 94 72 0
+ * 95 71 0
+ * 96 70 0
+ * 97 69 0
+ * 98 68 0
+ */
+
+/**
+ * 5 GHz gain table
+ *
+ * Index Dsp gain Radio gain
+ * -9 123 0x3F (highest gain)
+ * -8 117 0x3F
+ * -7 110 0x3F
+ * -6 104 0x3F
+ * -5 98 0x3F
+ * -4 110 0x3E
+ * -3 104 0x3E
+ * -2 98 0x3E
+ * -1 110 0x3D
+ * 0 104 0x3D
+ * 1 98 0x3D
+ * 2 110 0x3C
+ * 3 104 0x3C
+ * 4 98 0x3C
+ * 5 110 0x3B
+ * 6 104 0x3B
+ * 7 98 0x3B
+ * 8 110 0x3A
+ * 9 104 0x3A
+ * 10 98 0x3A
+ * 11 110 0x39
+ * 12 104 0x39
+ * 13 98 0x39
+ * 14 110 0x38
+ * 15 104 0x38
+ * 16 98 0x38
+ * 17 110 0x37
+ * 18 104 0x37
+ * 19 98 0x37
+ * 20 110 0x36
+ * 21 104 0x36
+ * 22 98 0x36
+ * 23 110 0x35
+ * 24 104 0x35
+ * 25 98 0x35
+ * 26 110 0x34
+ * 27 104 0x34
+ * 28 98 0x34
+ * 29 110 0x33
+ * 30 104 0x33
+ * 31 98 0x33
+ * 32 110 0x32
+ * 33 104 0x32
+ * 34 98 0x32
+ * 35 110 0x31
+ * 36 104 0x31
+ * 37 98 0x31
+ * 38 110 0x30
+ * 39 104 0x30
+ * 40 98 0x30
+ * 41 110 0x25
+ * 42 104 0x25
+ * 43 98 0x25
+ * 44 110 0x24
+ * 45 104 0x24
+ * 46 98 0x24
+ * 47 110 0x23
+ * 48 104 0x23
+ * 49 98 0x23
+ * 50 110 0x22
+ * 51 104 0x18
+ * 52 98 0x18
+ * 53 110 0x17
+ * 54 104 0x17
+ * 55 98 0x17
+ * 56 110 0x16
+ * 57 104 0x16
+ * 58 98 0x16
+ * 59 110 0x15
+ * 60 104 0x15
+ * 61 98 0x15
+ * 62 110 0x14
+ * 63 104 0x14
+ * 64 98 0x14
+ * 65 110 0x13
+ * 66 104 0x13
+ * 67 98 0x13
+ * 68 110 0x12
+ * 69 104 0x08
+ * 70 98 0x08
+ * 71 110 0x07
+ * 72 104 0x07
+ * 73 98 0x07
+ * 74 110 0x06
+ * 75 104 0x06
+ * 76 98 0x06
+ * 77 110 0x05
+ * 78 104 0x05
+ * 79 98 0x05
+ * 80 110 0x04
+ * 81 104 0x04
+ * 82 98 0x04
+ * 83 110 0x03
+ * 84 104 0x03
+ * 85 98 0x03
+ * 86 110 0x02
+ * 87 104 0x02
+ * 88 98 0x02
+ * 89 110 0x01
+ * 90 104 0x01
+ * 91 98 0x01
+ * 92 110 0x00
+ * 93 104 0x00
+ * 94 98 0x00
+ * 95 93 0x00
+ * 96 88 0x00
+ * 97 83 0x00
+ * 98 78 0x00
+ */
+
+
+/**
+ * Sanity checks and default values for EEPROM regulatory levels.
+ * If EEPROM values fall outside MIN/MAX range, use default values.
+ *
+ * Regulatory limits refer to the maximum average txpower allowed by
+ * regulatory agencies in the geographies in which the device is meant
+ * to be operated. These limits are SKU-specific (i.e. geography-specific),
+ * and channel-specific; each channel has an individual regulatory limit
+ * listed in the EEPROM.
+ *
+ * Units are in half-dBm (i.e. "34" means 17 dBm).
+ */
#define IWL_TX_POWER_DEFAULT_REGULATORY_24 (34)
#define IWL_TX_POWER_DEFAULT_REGULATORY_52 (34)
#define IWL_TX_POWER_REGULATORY_MIN (0)
#define IWL_TX_POWER_REGULATORY_MAX (34)
+
+/**
+ * Sanity checks and default values for EEPROM saturation levels.
+ * If EEPROM values fall outside MIN/MAX range, use default values.
+ *
+ * Saturation is the highest level that the output power amplifier can produce
+ * without significant clipping distortion. This is a "peak" power level.
+ * Different types of modulation (i.e. various "rates", and OFDM vs. CCK)
+ * require differing amounts of backoff, relative to their average power output,
+ * in order to avoid clipping distortion.
+ *
+ * Driver must make sure that it is violating neither the saturation limit,
+ * nor the regulatory limit, when calculating Tx power settings for various
+ * rates.
+ *
+ * Units are in half-dBm (i.e. "38" means 19 dBm).
+ */
#define IWL_TX_POWER_DEFAULT_SATURATION_24 (38)
#define IWL_TX_POWER_DEFAULT_SATURATION_52 (38)
#define IWL_TX_POWER_SATURATION_MIN (20)
#define IWL_TX_POWER_SATURATION_MAX (50)
-/* dv *0.4 = dt; so that 5 degrees temperature diff equals
- * 12.5 in voltage diff */
-#define IWL_TX_TEMPERATURE_UPDATE_LIMIT 9
-
-#define IWL_INVALID_CHANNEL (0xffffffff)
-#define IWL_TX_POWER_REGITRY_BIT (2)
-
-#define MIN_IWL_TX_POWER_CALIB_DUR (100)
-#define IWL_CCK_FROM_OFDM_POWER_DIFF (-5)
-#define IWL_CCK_FROM_OFDM_INDEX_DIFF (9)
-
-/* Number of entries in the gain table */
-#define POWER_GAIN_NUM_ENTRIES 78
-#define TX_POW_MAX_SESSION_NUM 5
-/* timeout equivalent to 3 minutes */
-#define TX_IWL_TIMELIMIT_NOCALIB 1800000000
-
-/* Kedron TX_CALIB_STATES */
-#define IWL_TX_CALIB_STATE_SEND_TX 0x00000001
-#define IWL_TX_CALIB_WAIT_TX_RESPONSE 0x00000002
-#define IWL_TX_CALIB_ENABLED 0x00000004
-#define IWL_TX_CALIB_XVT_ON 0x00000008
-#define IWL_TX_CALIB_TEMPERATURE_CORRECT 0x00000010
-#define IWL_TX_CALIB_WORKING_WITH_XVT 0x00000020
-#define IWL_TX_CALIB_XVT_PERIODICAL 0x00000040
-
-#define NUM_IWL_TX_CALIB_SETTINS 5 /* Number of tx correction groups */
-
-#define IWL_MIN_POWER_IN_VP_TABLE 1 /* 0.5dBm multiplied by 2 */
-#define IWL_MAX_POWER_IN_VP_TABLE 40 /* 20dBm - multiplied by 2 (because
- * entries are for each 0.5dBm) */
-#define IWL_STEP_IN_VP_TABLE 1 /* 0.5dB - multiplied by 2 */
-#define IWL_NUM_POINTS_IN_VPTABLE \
- (1 + IWL_MAX_POWER_IN_VP_TABLE - IWL_MIN_POWER_IN_VP_TABLE)
-
-#define MIN_TX_GAIN_INDEX (0)
-#define MAX_TX_GAIN_INDEX_52GHZ (98)
-#define MIN_TX_GAIN_52GHZ (98)
-#define MAX_TX_GAIN_INDEX_24GHZ (98)
-#define MIN_TX_GAIN_24GHZ (98)
-#define MAX_TX_GAIN (0)
-
-/* First and last channels of all groups */
+/**
+ * Channel groups used for Tx Attenuation calibration (MIMO tx channel balance)
+ * and thermal Txpower calibration.
+ *
+ * When calculating txpower, driver must compensate for current device
+ * temperature; higher temperature requires higher gain. Driver must calculate
+ * current temperature (see "4965 temperature calculation"), then compare vs.
+ * factory calibration temperature in EEPROM; if current temperature is higher
+ * than factory temperature, driver must *increase* gain by proportions shown
+ * in table below. If current temperature is lower than factory, driver must
+ * *decrease* gain.
+ *
+ * Different frequency ranges require different compensation, as shown below.
+ */
+/* Group 0, 5.2 GHz ch 34-43: 4.5 degrees per 1/2 dB. */
#define CALIB_IWL_TX_ATTEN_GR1_FCH 34
#define CALIB_IWL_TX_ATTEN_GR1_LCH 43
+
+/* Group 1, 5.3 GHz ch 44-70: 4.0 degrees per 1/2 dB. */
#define CALIB_IWL_TX_ATTEN_GR2_FCH 44
#define CALIB_IWL_TX_ATTEN_GR2_LCH 70
+
+/* Group 2, 5.5 GHz ch 71-124: 4.0 degrees per 1/2 dB. */
#define CALIB_IWL_TX_ATTEN_GR3_FCH 71
#define CALIB_IWL_TX_ATTEN_GR3_LCH 124
+
+/* Group 3, 5.7 GHz ch 125-200: 4.0 degrees per 1/2 dB. */
#define CALIB_IWL_TX_ATTEN_GR4_FCH 125
#define CALIB_IWL_TX_ATTEN_GR4_LCH 200
+
+/* Group 4, 2.4 GHz all channels: 3.5 degrees per 1/2 dB. */
#define CALIB_IWL_TX_ATTEN_GR5_FCH 1
#define CALIB_IWL_TX_ATTEN_GR5_LCH 20
-struct tx_power_dual_stream {
- __le16 ramon_tx_gain;
- __le16 dsp_predis_atten;
-} __attribute__ ((packed));
-
-union tx_power_dual_stream_u {
- struct tx_power_dual_stream s;
- __le32 dw;
-} __attribute__ ((packed));
-
-struct iwl_tx_power_db {
- union tx_power_dual_stream_u
- ht_ofdm_power[POWER_TABLE_NUM_HT_OFDM_ENTRIES];
- union tx_power_dual_stream_u legacy_cck_power;
-
-} __attribute__ ((packed));
-
-struct iwl_tx_power_table_cmd {
- u8 band;
- u8 channel_normal_width;
- __le16 channel;
- struct iwl_tx_power_db tx_power;
-} __attribute__ ((packed));
+enum {
+ CALIB_CH_GROUP_1 = 0,
+ CALIB_CH_GROUP_2 = 1,
+ CALIB_CH_GROUP_3 = 2,
+ CALIB_CH_GROUP_4 = 3,
+ CALIB_CH_GROUP_5 = 4,
+ CALIB_CH_GROUP_MAX
+};
/********************* END TXPOWER *****************************************/
-/* HT flags */
-#define RXON_FLG_CONTROL_CHANNEL_LOCATION_MSK 0x400000
-#define RXON_FLG_CONTROL_CHANNEL_LOC_LOW_MSK 0x000000
-#define RXON_FLG_CONTROL_CHANNEL_LOC_HIGH_MSK 0x400000
-
-#define RXON_FLG_HT_OPERATING_MODE_POS (23)
-/*yshevet - bug fix */
-#define RXON_FLG_HT_PROT_MSK 0x800000
-#define RXON_FLG_FAT_PROT_MSK 0x1000000
-
-#define RXON_FLG_CHANNEL_MODE_POS (25)
-#define RXON_FLG_CHANNEL_MODE_MSK 0x06000000
-#define RXON_FLG_CHANNEL_MODE_LEGACY_MSK 0x00000000
-#define RXON_FLG_CHANNEL_MODE_PURE_40_MSK 0x02000000
-#define RXON_FLG_CHANNEL_MODE_MIXED_MSK 0x04000000
-
-#define RXON_RX_CHAIN_DRIVER_FORCE_MSK (0x1<<0)
-#define RXON_RX_CHAIN_VALID_MSK (0x7<<1)
-#define RXON_RX_CHAIN_VALID_POS (1)
-#define RXON_RX_CHAIN_FORCE_SEL_MSK (0x7<<4)
-#define RXON_RX_CHAIN_FORCE_SEL_POS (4)
-#define RXON_RX_CHAIN_FORCE_MIMO_SEL_MSK (0x7<<7)
-#define RXON_RX_CHAIN_FORCE_MIMO_SEL_POS (7)
-#define RXON_RX_CHAIN_CNT_MSK (0x3<<10)
-#define RXON_RX_CHAIN_CNT_POS (10)
-#define RXON_RX_CHAIN_MIMO_CNT_MSK (0x3<<12)
-#define RXON_RX_CHAIN_MIMO_CNT_POS (12)
-#define RXON_RX_CHAIN_MIMO_FORCE_MSK (0x1<<14)
-#define RXON_RX_CHAIN_MIMO_FORCE_POS (14)
-
-
-#define MCS_DUP_6M_PLCP 0x20
-
-/* OFDM HT rate masks */
-/* ***************************************** */
-#define R_MCS_6M_MSK 0x1
-#define R_MCS_12M_MSK 0x2
-#define R_MCS_18M_MSK 0x4
-#define R_MCS_24M_MSK 0x8
-#define R_MCS_36M_MSK 0x10
-#define R_MCS_48M_MSK 0x20
-#define R_MCS_54M_MSK 0x40
-#define R_MCS_60M_MSK 0x80
-#define R_MCS_12M_DUAL_MSK 0x100
-#define R_MCS_24M_DUAL_MSK 0x200
-#define R_MCS_36M_DUAL_MSK 0x400
-#define R_MCS_48M_DUAL_MSK 0x800
-
-#define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A))
-#define is_siso(tbl) (((tbl) == LQ_SISO))
-#define is_mimo(tbl) (((tbl) == LQ_MIMO))
-#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl))
-#define is_a_band(tbl) (((tbl) == LQ_A))
-#define is_g_and(tbl) (((tbl) == LQ_G))
-
-/*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */
-#define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1<<0)
-
-#define LINK_QUAL_AC_NUM AC_NUM
-#define LINK_QUAL_MAX_RETRY_NUM 16
-
-#define LINK_QUAL_ANT_A_MSK (1<<0)
-#define LINK_QUAL_ANT_B_MSK (1<<1)
-#define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK)
-
-struct iwl_link_qual_general_params {
- u8 flags;
- u8 mimo_delimiter;
- u8 single_stream_ant_msk;
- u8 dual_stream_ant_msk;
- u8 start_rate_index[LINK_QUAL_AC_NUM];
-} __attribute__ ((packed));
-
-struct iwl_link_qual_agg_params {
- __le16 agg_time_limit;
- u8 agg_dis_start_th;
- u8 agg_frame_cnt_limit;
- __le32 reserved;
-} __attribute__ ((packed));
-
-struct iwl_link_quality_cmd {
- u8 sta_id;
- u8 reserved1;
- __le16 control;
- struct iwl_link_qual_general_params general_params;
- struct iwl_link_qual_agg_params agg_params;
- struct iwl_rate rate_scale_table[LINK_QUAL_MAX_RETRY_NUM];
- __le32 reserved2;
-} __attribute__ ((packed));
-
-#define STA_FLG_PWR_SAVE_MSK 0x100
-
+/****************************/
/* Flow Handler Definitions */
+/****************************/
-/**********************/
-/* Addresses */
-/**********************/
-
+/**
+ * This I/O area is directly read/writable by driver (e.g. Linux uses writel())
+ * Addresses are offsets from device's PCI hardware base address.
+ */
#define FH_MEM_LOWER_BOUND (0x1000)
#define FH_MEM_UPPER_BOUND (0x1EF0)
-#define IWL_FH_REGS_LOWER_BOUND (0x1000)
-#define IWL_FH_REGS_UPPER_BOUND (0x2000)
-
-/* TFDB Area - TFDs buffer table */
-#define FH_MEM_TFDB_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x000)
-#define FH_MEM_TFDB_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0x900)
-/* channels 0 - 8 */
-#define FH_MEM_TFDB_CHNL_BUF0(x) (FH_MEM_TFDB_LOWER_BOUND + (x) * 0x100)
-#define FH_MEM_TFDB_CHNL_BUF1(x) (FH_MEM_TFDB_LOWER_BOUND + 0x80 + (x) * 0x100)
-
-/* TFDIB Area - TFD Immediate Buffer */
-#define FH_MEM_TFDIB_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x900)
-#define FH_MEM_TFDIB_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0x958)
-/* channels 0 - 10 */
-#define FH_MEM_TFDIB_CHNL(x) (FH_MEM_TFDIB_LOWER_BOUND + (x) * 0x8)
-
-/* TFDIB registers used in Service Mode */
-#define FH_MEM_TFDIB_CHNL9_REG0 (FH_MEM_TFDIB_CHNL(9))
-#define FH_MEM_TFDIB_CHNL9_REG1 (FH_MEM_TFDIB_CHNL(9) + 4)
-#define FH_MEM_TFDIB_CHNL10_REG0 (FH_MEM_TFDIB_CHNL(10))
-#define FH_MEM_TFDIB_CHNL10_REG1 (FH_MEM_TFDIB_CHNL(10) + 4)
-
-/* Tx service channels */
-#define FH_MEM_TFDIB_DRAM_ADDR_LSB_MASK (0xFFFFFFFF)
-#define FH_MEM_TFDIB_DRAM_ADDR_MSB_MASK (0xF00000000)
-#define FH_MEM_TFDIB_TB_LENGTH_MASK (0x0001FFFF) /* bits 16:0 */
-
-#define FH_MEM_TFDIB_DRAM_ADDR_LSB_BITSHIFT (0)
-#define FH_MEM_TFDIB_DRAM_ADDR_MSB_BITSHIFT (32)
-#define FH_MEM_TFDIB_TB_LENGTH_BITSHIFT (0)
-
-#define FH_MEM_TFDIB_REG0_ADDR_MASK (0xFFFFFFFF)
-#define FH_MEM_TFDIB_REG1_ADDR_MASK (0xF0000000)
-#define FH_MEM_TFDIB_REG1_LENGTH_MASK (0x0001FFFF)
-
-#define FH_MEM_TFDIB_REG0_ADDR_BITSHIFT (0)
-#define FH_MEM_TFDIB_REG1_ADDR_BITSHIFT (28)
-#define FH_MEM_TFDIB_REG1_LENGTH_BITSHIFT (0)
-
-/* TRB Area - Transmit Request Buffers */
-#define FH_MEM_TRB_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x0958)
-#define FH_MEM_TRB_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0x0980)
-/* channels 0 - 8 */
-#define FH_MEM_TRB_CHNL(x) (FH_MEM_TRB_LOWER_BOUND + (x) * 0x4)
-
+/**
+ * Keep-Warm (KW) buffer base address.
+ *
+ * Driver must allocate a 4KByte buffer that is used by 4965 for keeping the
+ * host DRAM powered on (via dummy accesses to DRAM) to maintain low-latency
+ * DRAM access when 4965 is Txing or Rxing. The dummy accesses prevent host
+ * from going into a power-savings mode that would cause higher DRAM latency,
+ * and possible data over/under-runs, before all Tx/Rx is complete.
+ *
+ * Driver loads IWL_FH_KW_MEM_ADDR_REG with the physical address (bits 35:4)
+ * of the buffer, which must be 4K aligned. Once this is set up, the 4965
+ * automatically invokes keep-warm accesses when normal accesses might not
+ * be sufficient to maintain fast DRAM response.
+ *
+ * Bit fields:
+ * 31-0: Keep-warm buffer physical base address [35:4], must be 4K aligned
+ */
#define IWL_FH_KW_MEM_ADDR_REG (FH_MEM_LOWER_BOUND + 0x97C)
-/* STAGB Area - Scheduler TAG Buffer */
-#define FH_MEM_STAGB_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x980)
-#define FH_MEM_STAGB_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0x9D0)
-/* channels 0 - 8 */
-#define FH_MEM_STAGB_0(x) (FH_MEM_STAGB_LOWER_BOUND + (x) * 0x8)
-#define FH_MEM_STAGB_1(x) (FH_MEM_STAGB_LOWER_BOUND + 0x4 + (x) * 0x8)
-
-/* Tx service channels */
-#define FH_MEM_SRAM_ADDR_9 (FH_MEM_STAGB_LOWER_BOUND + 0x048)
-#define FH_MEM_SRAM_ADDR_10 (FH_MEM_STAGB_LOWER_BOUND + 0x04C)
-#define FH_MEM_STAGB_SRAM_ADDR_MASK (0x00FFFFFF)
-/* CBBC Area - Circular buffers base address cache pointers table */
+/**
+ * TFD Circular Buffers Base (CBBC) addresses
+ *
+ * 4965 has 16 base pointer registers, one for each of 16 host-DRAM-resident
+ * circular buffers (CBs/queues) containing Transmit Frame Descriptors (TFDs)
+ * (see struct iwl_tfd_frame). These 16 pointer registers are offset by 0x04
+ * bytes from one another. Each TFD circular buffer in DRAM must be 256-byte
+ * aligned (address bits 0-7 must be 0).
+ *
+ * Bit fields in each pointer register:
+ * 27-0: TFD CB physical base address [35:8], must be 256-byte aligned
+ */
#define FH_MEM_CBBC_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x9D0)
#define FH_MEM_CBBC_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xA10)
-/* queues 0 - 15 */
-#define FH_MEM_CBBC_QUEUE(x) (FH_MEM_CBBC_LOWER_BOUND + (x) * 0x4)
-/* TAGR Area - TAG reconstruct table */
-#define FH_MEM_TAGR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xA10)
-#define FH_MEM_TAGR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xA70)
-
-/* TDBGR Area - Tx Debug Registers */
-#define FH_MEM_TDBGR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x0A70)
-#define FH_MEM_TDBGR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0x0B20)
-/* channels 0 - 10 */
-#define FH_MEM_TDBGR_CHNL(x) (FH_MEM_TDBGR_LOWER_BOUND + (x) * 0x10)
-
-#define FH_MEM_TDBGR_CHNL_REG_0(x) (FH_MEM_TDBGR_CHNL(x))
-#define FH_MEM_TDBGR_CHNL_REG_1(x) (FH_MEM_TDBGR_CHNL_REG_0(x) + 0x4)
-
-#define FH_MEM_TDBGR_CHNL_BYTES_TO_FIFO_MASK (0x000FFFFF)
-#define FH_MEM_TDBGR_CHNL_BYTES_TO_FIFO_BITSHIFT (0)
+/* Find TFD CB base pointer for given queue (range 0-15). */
+#define FH_MEM_CBBC_QUEUE(x) (FH_MEM_CBBC_LOWER_BOUND + (x) * 0x4)
-/* RDBUF Area */
-#define FH_MEM_RDBUF_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xB80)
-#define FH_MEM_RDBUF_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xBC0)
-#define FH_MEM_RDBUF_CHNL0 (FH_MEM_RDBUF_LOWER_BOUND)
-/* RSCSR Area */
+/**
+ * Rx SRAM Control and Status Registers (RSCSR)
+ *
+ * These registers provide handshake between driver and 4965 for the Rx queue
+ * (this queue handles *all* command responses, notifications, Rx data, etc.
+ * sent from 4965 uCode to host driver). Unlike Tx, there is only one Rx
+ * queue, and only one Rx DMA/FIFO channel. Also unlike Tx, which can
+ * concatenate up to 20 DRAM buffers to form a Tx frame, each Receive Buffer
+ * Descriptor (RBD) points to only one Rx Buffer (RB); there is a 1:1
+ * mapping between RBDs and RBs.
+ *
+ * Driver must allocate host DRAM memory for the following, and set the
+ * physical address of each into 4965 registers:
+ *
+ * 1) Receive Buffer Descriptor (RBD) circular buffer (CB), typically with 256
+ * entries (although any power of 2, up to 4096, is selectable by driver).
+ * Each entry (1 dword) points to a receive buffer (RB) of consistent size
+ * (typically 4K, although 8K or 16K are also selectable by driver).
+ * Driver sets up RB size and number of RBDs in the CB via Rx config
+ * register FH_MEM_RCSR_CHNL0_CONFIG_REG.
+ *
+ * Bit fields within one RBD:
+ * 27-0: Receive Buffer physical address bits [35:8], 256-byte aligned
+ *
+ * Driver sets physical address [35:8] of base of RBD circular buffer
+ * into FH_RSCSR_CHNL0_RBDCB_BASE_REG [27:0].
+ *
+ * 2) Rx status buffer, 8 bytes, in which 4965 indicates which Rx Buffers
+ * (RBs) have been filled, via a "write pointer", actually the index of
+ * the RB's corresponding RBD within the circular buffer. Driver sets
+ * physical address [35:4] into FH_RSCSR_CHNL0_STTS_WPTR_REG [31:0].
+ *
+ * Bit fields in lower dword of Rx status buffer (upper dword not used
+ * by driver; see struct iwl4965_shared, val0):
+ * 31-12: Not used by driver
+ * 11- 0: Index of last filled Rx buffer descriptor
+ * (4965 writes, driver reads this value)
+ *
+ * As the driver prepares Receive Buffers (RBs) for 4965 to fill, driver must
+ * enter pointers to these RBs into contiguous RBD circular buffer entries,
+ * and update the 4965's "write" index register, FH_RSCSR_CHNL0_RBDCB_WPTR_REG.
+ *
+ * This "write" index corresponds to the *next* RBD that the driver will make
+ * available, i.e. one RBD past the tail of the ready-to-fill RBDs within
+ * the circular buffer. This value should initially be 0 (before preparing any
+ * RBs), should be 8 after preparing the first 8 RBs (for example), and must
+ * wrap back to 0 at the end of the circular buffer (but don't wrap before
+ * "read" index has advanced past 1! See below).
+ * NOTE: 4965 EXPECTS THE WRITE INDEX TO BE INCREMENTED IN MULTIPLES OF 8.
+ *
+ * As the 4965 fills RBs (referenced from contiguous RBDs within the circular
+ * buffer), it updates the Rx status buffer in host DRAM, 2) described above,
+ * to tell the driver the index of the latest filled RBD. The driver must
+ * read this "read" index from DRAM after receiving an Rx interrupt from 4965.
+ *
+ * The driver must also internally keep track of a third index, which is the
+ * next RBD to process. When receiving an Rx interrupt, driver should process
+ * all filled but unprocessed RBs up to, but not including, the RB
+ * corresponding to the "read" index. For example, if "read" index becomes "1",
+ * driver may process the RB pointed to by RBD 0. Depending on volume of
+ * traffic, there may be many RBs to process.
+ *
+ * If read index == write index, 4965 thinks there is no room to put new data.
+ * Due to this, the maximum number of filled RBs is 255, instead of 256. To
+ * be safe, make sure that there is a gap of at least 2 RBDs between "write"
+ * and "read" indexes; that is, make sure that there are no more than 254
+ * buffers waiting to be filled.
+ */
#define FH_MEM_RSCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xBC0)
#define FH_MEM_RSCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xC00)
#define FH_MEM_RSCSR_CHNL0 (FH_MEM_RSCSR_LOWER_BOUND)
-#define FH_MEM_RSCSR_CHNL1 (FH_MEM_RSCSR_LOWER_BOUND + 0x020)
-/* RSCSR registers used in Normal mode*/
+/**
+ * Physical base address of 8-byte Rx Status buffer.
+ * Bit fields:
+ * 31-0: Rx status buffer physical base address [35:4], must 16-byte aligned.
+ */
#define FH_RSCSR_CHNL0_STTS_WPTR_REG (FH_MEM_RSCSR_CHNL0)
+
+/**
+ * Physical base address of Rx Buffer Descriptor Circular Buffer.
+ * Bit fields:
+ * 27-0: RBD CD physical base address [35:8], must be 256-byte aligned.
+ */
#define FH_RSCSR_CHNL0_RBDCB_BASE_REG (FH_MEM_RSCSR_CHNL0 + 0x004)
+
+/**
+ * Rx write pointer (index, really!).
+ * Bit fields:
+ * 11-0: Index of driver's most recent prepared-to-be-filled RBD, + 1.
+ * NOTE: For 256-entry circular buffer, use only bits [7:0].
+ */
#define FH_RSCSR_CHNL0_RBDCB_WPTR_REG (FH_MEM_RSCSR_CHNL0 + 0x008)
-#define FH_RSCSR_CHNL0_RBDCB_RPTR_REG (FH_MEM_RSCSR_CHNL0 + 0x00c)
+#define FH_RSCSR_CHNL0_WPTR (FH_RSCSR_CHNL0_RBDCB_WPTR_REG)
-#define FH_RSCSR_FRAME_SIZE_MASK (0x00003FFF) /* bits 0-13 */
-/* RSCSR registers used in Service mode*/
-#define FH_RSCSR_CHNL1_RB_WPTR_REG (FH_MEM_RSCSR_CHNL1)
-#define FH_RSCSR_CHNL1_RB_WPTR_OFFSET_REG (FH_MEM_RSCSR_CHNL1 + 0x004)
-#define FH_RSCSR_CHNL1_RB_CHUNK_NUM_REG (FH_MEM_RSCSR_CHNL1 + 0x008)
-#define FH_RSCSR_CHNL1_SRAM_ADDR_REG (FH_MEM_RSCSR_CHNL1 + 0x00C)
-/* RCSR Area - Registers address map */
+/**
+ * Rx Config/Status Registers (RCSR)
+ * Rx Config Reg for channel 0 (only channel used)
+ *
+ * Driver must initialize FH_MEM_RCSR_CHNL0_CONFIG_REG as follows for
+ * normal operation (see bit fields).
+ *
+ * Clearing FH_MEM_RCSR_CHNL0_CONFIG_REG to 0 turns off Rx DMA.
+ * Driver should poll FH_MEM_RSSR_RX_STATUS_REG for
+ * FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (bit 24) before continuing.
+ *
+ * Bit fields:
+ * 31-30: Rx DMA channel enable: '00' off/pause, '01' pause at end of frame,
+ * '10' operate normally
+ * 29-24: reserved
+ * 23-20: # RBDs in circular buffer = 2^value; use "8" for 256 RBDs (normal),
+ * min "5" for 32 RBDs, max "12" for 4096 RBDs.
+ * 19-18: reserved
+ * 17-16: size of each receive buffer; '00' 4K (normal), '01' 8K,
+ * '10' 12K, '11' 16K.
+ * 15-14: reserved
+ * 13-12: IRQ destination; '00' none, '01' host driver (normal operation)
+ * 11- 4: timeout for closing Rx buffer and interrupting host (units 32 usec)
+ * typical value 0x10 (about 1/2 msec)
+ * 3- 0: reserved
+ */
#define FH_MEM_RCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xC00)
#define FH_MEM_RCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xCC0)
#define FH_MEM_RCSR_CHNL0 (FH_MEM_RCSR_LOWER_BOUND)
-#define FH_MEM_RCSR_CHNL1 (FH_MEM_RCSR_LOWER_BOUND + 0x020)
#define FH_MEM_RCSR_CHNL0_CONFIG_REG (FH_MEM_RCSR_CHNL0)
-#define FH_MEM_RCSR_CHNL0_CREDIT_REG (FH_MEM_RCSR_CHNL0 + 0x004)
-#define FH_MEM_RCSR_CHNL0_RBD_STTS_REG (FH_MEM_RCSR_CHNL0 + 0x008)
-#define FH_MEM_RCSR_CHNL0_RB_STTS_REG (FH_MEM_RCSR_CHNL0 + 0x00C)
-#define FH_MEM_RCSR_CHNL0_RXPD_STTS_REG (FH_MEM_RCSR_CHNL0 + 0x010)
-#define FH_MEM_RCSR_CHNL0_RBD_STTS_FRAME_RB_CNT_MASK (0x7FFFFFF0) /* bits4:30 */
+#define FH_RCSR_CHNL0_RX_CONFIG_RB_TIMEOUT_MASK (0x00000FF0) /* bit 4-11 */
+#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_MASK (0x00001000) /* bit 12 */
+#define FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MASK (0x00008000) /* bit 15 */
+#define FH_RCSR_CHNL0_RX_CONFIG_RB_SIZE_MASK (0x00030000) /* bits 16-17 */
+#define FH_RCSR_CHNL0_RX_CONFIG_RBDBC_SIZE_MASK (0x00F00000) /* bits 20-23 */
+#define FH_RCSR_CHNL0_RX_CONFIG_DMA_CHNL_EN_MASK (0xC0000000) /* bits 30-31 */
+
+#define FH_RCSR_RX_CONFIG_RBDCB_SIZE_BITSHIFT (20)
+#define FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_BITSHIFT (4)
+#define RX_RB_TIMEOUT (0x10)
-/* RCSR registers used in Service mode*/
-#define FH_MEM_RCSR_CHNL1_CONFIG_REG (FH_MEM_RCSR_CHNL1)
-#define FH_MEM_RCSR_CHNL1_RB_STTS_REG (FH_MEM_RCSR_CHNL1 + 0x00C)
-#define FH_MEM_RCSR_CHNL1_RX_PD_STTS_REG (FH_MEM_RCSR_CHNL1 + 0x010)
+#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_VAL (0x00000000)
+#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_EOF_VAL (0x40000000)
+#define FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL (0x80000000)
+
+#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K (0x00000000)
+#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K (0x00010000)
+#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_12K (0x00020000)
+#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_16K (0x00030000)
-/* RSSR Area - Rx shared ctrl & status registers */
+#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL (0x00000000)
+#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL (0x00001000)
+
+
+/**
+ * Rx Shared Status Registers (RSSR)
+ *
+ * After stopping Rx DMA channel (writing 0 to FH_MEM_RCSR_CHNL0_CONFIG_REG),
+ * driver must poll FH_MEM_RSSR_RX_STATUS_REG until Rx channel is idle.
+ *
+ * Bit fields:
+ * 24: 1 = Channel 0 is idle
+ *
+ * FH_MEM_RSSR_SHARED_CTRL_REG and FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV contain
+ * default values that should not be altered by the driver.
+ */
#define FH_MEM_RSSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xC40)
#define FH_MEM_RSSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xD00)
+
#define FH_MEM_RSSR_SHARED_CTRL_REG (FH_MEM_RSSR_LOWER_BOUND)
#define FH_MEM_RSSR_RX_STATUS_REG (FH_MEM_RSSR_LOWER_BOUND + 0x004)
#define FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV (FH_MEM_RSSR_LOWER_BOUND + 0x008)
-/* TCSR */
-#define IWL_FH_TCSR_LOWER_BOUND (IWL_FH_REGS_LOWER_BOUND + 0xD00)
-#define IWL_FH_TCSR_UPPER_BOUND (IWL_FH_REGS_LOWER_BOUND + 0xE60)
+#define FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (0x01000000)
+
-#define IWL_FH_TCSR_CHNL_NUM (7)
+/**
+ * Transmit DMA Channel Control/Status Registers (TCSR)
+ *
+ * 4965 has one configuration register for each of 8 Tx DMA/FIFO channels
+ * supported in hardware (don't confuse these with the 16 Tx queues in DRAM,
+ * which feed the DMA/FIFO channels); config regs are separated by 0x20 bytes.
+ *
+ * To use a Tx DMA channel, driver must initialize its
+ * IWL_FH_TCSR_CHNL_TX_CONFIG_REG(chnl) with:
+ *
+ * IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
+ * IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL
+ *
+ * All other bits should be 0.
+ *
+ * Bit fields:
+ * 31-30: Tx DMA channel enable: '00' off/pause, '01' pause at end of frame,
+ * '10' operate normally
+ * 29- 4: Reserved, set to "0"
+ * 3: Enable internal DMA requests (1, normal operation), disable (0)
+ * 2- 0: Reserved, set to "0"
+ */
+#define IWL_FH_TCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xD00)
+#define IWL_FH_TCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xE60)
+
+/* Find Control/Status reg for given Tx DMA/FIFO channel */
#define IWL_FH_TCSR_CHNL_TX_CONFIG_REG(_chnl) \
(IWL_FH_TCSR_LOWER_BOUND + 0x20 * _chnl)
-#define IWL_FH_TCSR_CHNL_TX_CREDIT_REG(_chnl) \
- (IWL_FH_TCSR_LOWER_BOUND + 0x20 * _chnl + 0x4)
-#define IWL_FH_TCSR_CHNL_TX_BUF_STS_REG(_chnl) \
- (IWL_FH_TCSR_LOWER_BOUND + 0x20 * _chnl + 0x8)
-/* TSSR Area - Tx shared status registers */
-/* TSSR */
-#define IWL_FH_TSSR_LOWER_BOUND (IWL_FH_REGS_LOWER_BOUND + 0xEA0)
-#define IWL_FH_TSSR_UPPER_BOUND (IWL_FH_REGS_LOWER_BOUND + 0xEC0)
-
-#define IWL_FH_TSSR_TX_MSG_CONFIG_REG (IWL_FH_TSSR_LOWER_BOUND + 0x008)
-#define IWL_FH_TSSR_TX_STATUS_REG (IWL_FH_TSSR_LOWER_BOUND + 0x010)
-
-#define IWL_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON (0xFF000000)
-#define IWL_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON (0x00FF0000)
+#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL (0x00000000)
+#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL (0x00000008)
-#define IWL_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_64B (0x00000000)
-#define IWL_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B (0x00000400)
-#define IWL_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_256B (0x00000800)
-#define IWL_FH_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_512B (0x00000C00)
+#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000)
+#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE_EOF (0x40000000)
+#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000)
-#define IWL_FH_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON (0x00000100)
-#define IWL_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON (0x00000080)
+/**
+ * Tx Shared Status Registers (TSSR)
+ *
+ * After stopping Tx DMA channel (writing 0 to
+ * IWL_FH_TCSR_CHNL_TX_CONFIG_REG(chnl)), driver must poll
+ * IWL_FH_TSSR_TX_STATUS_REG until selected Tx channel is idle
+ * (channel's buffers empty | no pending requests).
+ *
+ * Bit fields:
+ * 31-24: 1 = Channel buffers empty (channel 7:0)
+ * 23-16: 1 = No pending requests (channel 7:0)
+ */
+#define IWL_FH_TSSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xEA0)
+#define IWL_FH_TSSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xEC0)
-#define IWL_FH_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH (0x00000020)
-#define IWL_FH_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH (0x00000005)
+#define IWL_FH_TSSR_TX_STATUS_REG (IWL_FH_TSSR_LOWER_BOUND + 0x010)
#define IWL_FH_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_chnl) \
((1 << (_chnl)) << 24)
@@ -487,327 +1558,347 @@ struct iwl_link_quality_cmd {
(IWL_FH_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_chnl) | \
IWL_FH_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_chnl))
-/* SRVC */
-#define IWL_FH_SRVC_LOWER_BOUND (IWL_FH_REGS_LOWER_BOUND + 0x9C8)
-#define IWL_FH_SRVC_UPPER_BOUND (IWL_FH_REGS_LOWER_BOUND + 0x9D0)
-
-#define IWL_FH_SRVC_CHNL_SRAM_ADDR_REG(_chnl) \
- (IWL_FH_SRVC_LOWER_BOUND + (_chnl - 9) * 0x4)
-
-/* TFDIB */
-#define IWL_FH_TFDIB_LOWER_BOUND (IWL_FH_REGS_LOWER_BOUND + 0x900)
-#define IWL_FH_TFDIB_UPPER_BOUND (IWL_FH_REGS_LOWER_BOUND + 0x958)
-
-#define IWL_FH_TFDIB_CTRL0_REG(_chnl) \
- (IWL_FH_TFDIB_LOWER_BOUND + 0x8 * _chnl)
-#define IWL_FH_TFDIB_CTRL1_REG(_chnl) \
- (IWL_FH_TFDIB_LOWER_BOUND + 0x8 * _chnl + 0x4)
-
-#define IWL_FH_SRVC_CHNL (9)
-#define IWL_FH_TFDIB_CTRL1_REG_POS_MSB (28)
-
-/* Debug Monitor Area */
-#define FH_MEM_DM_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xEE0)
-#define FH_MEM_DM_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xEF0)
-#define FH_MEM_DM_CONTROL_MASK_REG (FH_MEM_DM_LOWER_BOUND)
-#define FH_MEM_DM_CONTROL_START_REG (FH_MEM_DM_LOWER_BOUND + 0x004)
-#define FH_MEM_DM_CONTROL_STATUS_REG (FH_MEM_DM_LOWER_BOUND + 0x008)
-#define FH_MEM_DM_MONITOR_REG (FH_MEM_DM_LOWER_BOUND + 0x00C)
-
-#define FH_TB1_ADDR_LOW_MASK (0xFFFFFFFF) /* bits 31:0 */
-#define FH_TB1_ADDR_HIGH_MASK (0xF00000000) /* bits 35:32 */
-#define FH_TB2_ADDR_LOW_MASK (0x0000FFFF) /* bits 15:0 */
-#define FH_TB2_ADDR_HIGH_MASK (0xFFFFF0000) /* bits 35:16 */
-
-#define FH_TB1_ADDR_LOW_BITSHIFT (0)
-#define FH_TB1_ADDR_HIGH_BITSHIFT (32)
-#define FH_TB2_ADDR_LOW_BITSHIFT (0)
-#define FH_TB2_ADDR_HIGH_BITSHIFT (16)
-
-#define FH_TB1_LENGTH_MASK (0x00000FFF) /* bits 11:0 */
-#define FH_TB2_LENGTH_MASK (0x00000FFF) /* bits 11:0 */
-/* number of FH channels including 2 service mode */
-#define NUM_OF_FH_CHANNELS (10)
-
-/* ctrl field bitology */
-#define FH_TFD_CTRL_PADDING_MASK (0xC0000000) /* bits 31:30 */
-#define FH_TFD_CTRL_NUMTB_MASK (0x1F000000) /* bits 28:24 */
-
-#define FH_TFD_CTRL_PADDING_BITSHIFT (30)
-#define FH_TFD_CTRL_NUMTB_BITSHIFT (24)
-
-#define FH_TFD_GET_NUM_TBS(ctrl) \
- ((ctrl & FH_TFD_CTRL_NUMTB_MASK) >> FH_TFD_CTRL_NUMTB_BITSHIFT)
-#define FH_TFD_GET_PADDING(ctrl) \
- ((ctrl & FH_TFD_CTRL_PADDING_MASK) >> FH_TFD_CTRL_PADDING_BITSHIFT)
-
-/* TCSR: tx_config register values */
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF (0x00000000)
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRIVER (0x00000001)
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_ARC (0x00000002)
-
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL (0x00000000)
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL (0x00000008)
-
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_NOINT (0x00000000)
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD (0x00100000)
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD (0x00200000)
-
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT (0x00000000)
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_ENDTFD (0x00400000)
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_IFTFD (0x00800000)
-
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000)
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE_EOF (0x40000000)
-#define IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000)
-
-#define IWL_FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_EMPTY (0x00000000)
-#define IWL_FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_WAIT (0x00002000)
-#define IWL_FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID (0x00000003)
-
-#define IWL_FH_TCSR_CHNL_TX_BUF_STS_REG_BIT_TFDB_WPTR (0x00000001)
-
-#define IWL_FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM (20)
-#define IWL_FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX (12)
-
-/* CBB table */
-#define FH_CBB_ADDR_MASK 0x0FFFFFFF /* bits 27:0 */
-#define FH_CBB_ADDR_BIT_SHIFT (8)
-
-/* RCSR: channel 0 rx_config register defines */
-#define FH_RCSR_CHNL0_RX_CONFIG_DMA_CHNL_EN_MASK (0xC0000000) /* bits 30-31 */
-#define FH_RCSR_CHNL0_RX_CONFIG_RBDBC_SIZE_MASK (0x00F00000) /* bits 20-23 */
-#define FH_RCSR_CHNL0_RX_CONFIG_RB_SIZE_MASK (0x00030000) /* bits 16-17 */
-#define FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MASK (0x00008000) /* bit 15 */
-#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_MASK (0x00001000) /* bit 12 */
-#define FH_RCSR_CHNL0_RX_CONFIG_RB_TIMEOUT_MASK (0x00000FF0) /* bit 4-11 */
-
-#define FH_RCSR_RX_CONFIG_RBDCB_SIZE_BITSHIFT (20)
-#define FH_RCSR_RX_CONFIG_RB_SIZE_BITSHIFT (16)
-
-#define FH_RCSR_GET_RDBC_SIZE(reg) \
- ((reg & FH_RCSR_RX_CONFIG_RDBC_SIZE_MASK) >> \
- FH_RCSR_RX_CONFIG_RDBC_SIZE_BITSHIFT)
-
-/* RCSR: channel 1 rx_config register defines */
-#define FH_RCSR_CHNL1_RX_CONFIG_DMA_CHNL_EN_MASK (0xC0000000) /* bits 30-31 */
-#define FH_RCSR_CHNL1_RX_CONFIG_IRQ_DEST_MASK (0x00003000) /* bits 12-13 */
-
-/* RCSR: rx_config register values */
-#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_VAL (0x00000000)
-#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_EOF_VAL (0x40000000)
-#define FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL (0x80000000)
-#define FH_RCSR_RX_CONFIG_SINGLE_FRAME_MODE (0x00008000)
-
-#define FH_RCSR_RX_CONFIG_RDRBD_DISABLE_VAL (0x00000000)
-#define FH_RCSR_RX_CONFIG_RDRBD_ENABLE_VAL (0x20000000)
-
-#define IWL_FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K (0x00000000)
-
-/* RCSR channel 0 config register values */
-#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL (0x00000000)
-#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL (0x00001000)
-
-/* RCSR channel 1 config register values */
-#define FH_RCSR_CHNL1_RX_CONFIG_IRQ_DEST_NO_INT_VAL (0x00000000)
-#define FH_RCSR_CHNL1_RX_CONFIG_IRQ_DEST_INT_HOST_VAL (0x00001000)
-#define FH_RCSR_CHNL1_RX_CONFIG_IRQ_DEST_INT_RTC_VAL (0x00002000)
-#define FH_RCSR_CHNL1_RX_CONFIG_IRQ_DEST_INT_HOST_RTC_VAL (0x00003000)
-
-/* RCSR: rb status register defines */
-#define FH_RCSR_RB_BYTE_TO_SEND_MASK (0x0001FFFF) /* bits 0-16 */
-
-/* RSCSR: defs used in normal mode */
-#define FH_RSCSR_CHNL0_RBDCB_WPTR_MASK (0x00000FFF) /* bits 0-11 */
-
-/* RSCSR: defs used in service mode */
-#define FH_RSCSR_CHNL1_SRAM_ADDR_MASK (0x00FFFFFF) /* bits 0-23 */
-#define FH_RSCSR_CHNL1_RB_WPTR_MASK (0x0FFFFFFF) /* bits 0-27 */
-#define FH_RSCSR_CHNL1_RB_WPTR_OFFSET_MASK (0x000000FF) /* bits 0-7 */
-
-/* RSSR: RX Enable Error IRQ to Driver register defines */
-#define FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV_NO_RBD (0x00400000) /* bit 22 */
-
-#define FH_DRAM2SRAM_DRAM_ADDR_HIGH_MASK (0xFFFFFFF00) /* bits 8-35 */
-#define FH_DRAM2SRAM_DRAM_ADDR_LOW_MASK (0x000000FF) /* bits 0-7 */
-
-#define FH_DRAM2SRAM_DRAM_ADDR_HIGH_BITSHIFT (8) /* bits 8-35 */
-
-/* RX DRAM status regs definitions */
-#define FH_RX_RB_NUM_MASK (0x00000FFF) /* bits 0-11 */
-#define FH_RX_FRAME_NUM_MASK (0x0FFF0000) /* bits 16-27 */
-
-#define FH_RX_RB_NUM_BITSHIFT (0)
-#define FH_RX_FRAME_NUM_BITSHIFT (16)
+/********************* START TX SCHEDULER *************************************/
+/**
+ * 4965 Tx Scheduler
+ *
+ * The Tx Scheduler selects the next frame to be transmitted, chosing TFDs
+ * (Transmit Frame Descriptors) from up to 16 circular Tx queues resident in
+ * host DRAM. It steers each frame's Tx command (which contains the frame
+ * data) into one of up to 7 prioritized Tx DMA FIFO channels within the
+ * device. A queue maps to only one (selectable by driver) Tx DMA channel,
+ * but one DMA channel may take input from several queues.
+ *
+ * Tx DMA channels have dedicated purposes. For 4965, they are used as follows:
+ *
+ * 0 -- EDCA BK (background) frames, lowest priority
+ * 1 -- EDCA BE (best effort) frames, normal priority
+ * 2 -- EDCA VI (video) frames, higher priority
+ * 3 -- EDCA VO (voice) and management frames, highest priority
+ * 4 -- Commands (e.g. RXON, etc.)
+ * 5 -- HCCA short frames
+ * 6 -- HCCA long frames
+ * 7 -- not used by driver (device-internal only)
+ *
+ * Driver should normally map queues 0-6 to Tx DMA/FIFO channels 0-6.
+ * In addition, driver can map queues 7-15 to Tx DMA/FIFO channels 0-3 to
+ * support 11n aggregation via EDCA DMA channels.
+ *
+ * The driver sets up each queue to work in one of two modes:
+ *
+ * 1) Scheduler-Ack, in which the scheduler automatically supports a
+ * block-ack (BA) window of up to 64 TFDs. In this mode, each queue
+ * contains TFDs for a unique combination of Recipient Address (RA)
+ * and Traffic Identifier (TID), that is, traffic of a given
+ * Quality-Of-Service (QOS) priority, destined for a single station.
+ *
+ * In scheduler-ack mode, the scheduler keeps track of the Tx status of
+ * each frame within the BA window, including whether it's been transmitted,
+ * and whether it's been acknowledged by the receiving station. The device
+ * automatically processes block-acks received from the receiving STA,
+ * and reschedules un-acked frames to be retransmitted (successful
+ * Tx completion may end up being out-of-order).
+ *
+ * The driver must maintain the queue's Byte Count table in host DRAM
+ * (struct iwl4965_sched_queue_byte_cnt_tbl) for this mode.
+ * This mode does not support fragmentation.
+ *
+ * 2) FIFO (a.k.a. non-Scheduler-ACK), in which each TFD is processed in order.
+ * The device may automatically retry Tx, but will retry only one frame
+ * at a time, until receiving ACK from receiving station, or reaching
+ * retry limit and giving up.
+ *
+ * The command queue (#4) must use this mode!
+ * This mode does not require use of the Byte Count table in host DRAM.
+ *
+ * Driver controls scheduler operation via 3 means:
+ * 1) Scheduler registers
+ * 2) Shared scheduler data base in internal 4956 SRAM
+ * 3) Shared data in host DRAM
+ *
+ * Initialization:
+ *
+ * When loading, driver should allocate memory for:
+ * 1) 16 TFD circular buffers, each with space for (typically) 256 TFDs.
+ * 2) 16 Byte Count circular buffers in 16 KBytes contiguous memory
+ * (1024 bytes for each queue).
+ *
+ * After receiving "Alive" response from uCode, driver must initialize
+ * the scheduler (especially for queue #4, the command queue, otherwise
+ * the driver can't issue commands!):
+ */
+
+/**
+ * Max Tx window size is the max number of contiguous TFDs that the scheduler
+ * can keep track of at one time when creating block-ack chains of frames.
+ * Note that "64" matches the number of ack bits in a block-ack packet.
+ * Driver should use SCD_WIN_SIZE and SCD_FRAME_LIMIT values to initialize
+ * SCD_CONTEXT_QUEUE_OFFSET(x) values.
+ */
#define SCD_WIN_SIZE 64
-#define SCD_FRAME_LIMIT 10
+#define SCD_FRAME_LIMIT 64
-/* memory mapped registers */
+/* SCD registers are internal, must be accessed via HBUS_TARG_PRPH regs */
#define SCD_START_OFFSET 0xa02c00
+/*
+ * 4965 tells driver SRAM address for internal scheduler structs via this reg.
+ * Value is valid only after "Alive" response from uCode.
+ */
#define SCD_SRAM_BASE_ADDR (SCD_START_OFFSET + 0x0)
+
+/*
+ * Driver may need to update queue-empty bits after changing queue's
+ * write and read pointers (indexes) during (re-)initialization (i.e. when
+ * scheduler is not tracking what's happening).
+ * Bit fields:
+ * 31-16: Write mask -- 1: update empty bit, 0: don't change empty bit
+ * 15-00: Empty state, one for each queue -- 1: empty, 0: non-empty
+ * NOTE: This register is not used by Linux driver.
+ */
#define SCD_EMPTY_BITS (SCD_START_OFFSET + 0x4)
+
+/*
+ * Physical base address of array of byte count (BC) circular buffers (CBs).
+ * Each Tx queue has a BC CB in host DRAM to support Scheduler-ACK mode.
+ * This register points to BC CB for queue 0, must be on 1024-byte boundary.
+ * Others are spaced by 1024 bytes.
+ * Each BC CB is 2 bytes * (256 + 64) = 740 bytes, followed by 384 bytes pad.
+ * (Index into a queue's BC CB) = (index into queue's TFD CB) = (SSN & 0xff).
+ * Bit fields:
+ * 25-00: Byte Count CB physical address [35:10], must be 1024-byte aligned.
+ */
#define SCD_DRAM_BASE_ADDR (SCD_START_OFFSET + 0x10)
-#define SCD_AIT (SCD_START_OFFSET + 0x18)
-#define SCD_TXFACT (SCD_START_OFFSET + 0x1c)
-#define SCD_QUEUE_WRPTR(x) (SCD_START_OFFSET + 0x24 + (x) * 4)
-#define SCD_QUEUE_RDPTR(x) (SCD_START_OFFSET + 0x64 + (x) * 4)
-#define SCD_SETQUEUENUM (SCD_START_OFFSET + 0xa4)
-#define SCD_SET_TXSTAT_TXED (SCD_START_OFFSET + 0xa8)
-#define SCD_SET_TXSTAT_DONE (SCD_START_OFFSET + 0xac)
-#define SCD_SET_TXSTAT_NOT_SCHD (SCD_START_OFFSET + 0xb0)
-#define SCD_DECREASE_CREDIT (SCD_START_OFFSET + 0xb4)
-#define SCD_DECREASE_SCREDIT (SCD_START_OFFSET + 0xb8)
-#define SCD_LOAD_CREDIT (SCD_START_OFFSET + 0xbc)
-#define SCD_LOAD_SCREDIT (SCD_START_OFFSET + 0xc0)
-#define SCD_BAR (SCD_START_OFFSET + 0xc4)
-#define SCD_BAR_DW0 (SCD_START_OFFSET + 0xc8)
-#define SCD_BAR_DW1 (SCD_START_OFFSET + 0xcc)
-#define SCD_QUEUECHAIN_SEL (SCD_START_OFFSET + 0xd0)
-#define SCD_QUERY_REQ (SCD_START_OFFSET + 0xd8)
-#define SCD_QUERY_RES (SCD_START_OFFSET + 0xdc)
-#define SCD_PENDING_FRAMES (SCD_START_OFFSET + 0xe0)
-#define SCD_INTERRUPT_MASK (SCD_START_OFFSET + 0xe4)
-#define SCD_INTERRUPT_THRESHOLD (SCD_START_OFFSET + 0xe8)
-#define SCD_QUERY_MIN_FRAME_SIZE (SCD_START_OFFSET + 0x100)
-#define SCD_QUEUE_STATUS_BITS(x) (SCD_START_OFFSET + 0x104 + (x) * 4)
-/* SRAM structures */
-#define SCD_CONTEXT_DATA_OFFSET 0x380
-#define SCD_TX_STTS_BITMAP_OFFSET 0x400
-#define SCD_TRANSLATE_TBL_OFFSET 0x500
-#define SCD_CONTEXT_QUEUE_OFFSET(x) (SCD_CONTEXT_DATA_OFFSET + ((x) * 8))
-#define SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \
- ((SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffffffc)
+/*
+ * Enables any/all Tx DMA/FIFO channels.
+ * Scheduler generates requests for only the active channels.
+ * Set this to 0xff to enable all 8 channels (normal usage).
+ * Bit fields:
+ * 7- 0: Enable (1), disable (0), one bit for each channel 0-7
+ */
+#define SCD_TXFACT (SCD_START_OFFSET + 0x1c)
+/* Mask to enable contiguous Tx DMA/FIFO channels between "lo" and "hi". */
#define SCD_TXFACT_REG_TXFIFO_MASK(lo, hi) \
((1<<(hi))|((1<<(hi))-(1<<(lo))))
+/*
+ * Queue (x) Write Pointers (indexes, really!), one for each Tx queue.
+ * Initialized and updated by driver as new TFDs are added to queue.
+ * NOTE: If using Block Ack, index must correspond to frame's
+ * Start Sequence Number; index = (SSN & 0xff)
+ * NOTE: Alternative to HBUS_TARG_WRPTR, which is what Linux driver uses?
+ */
+#define SCD_QUEUE_WRPTR(x) (SCD_START_OFFSET + 0x24 + (x) * 4)
-#define SCD_MODE_REG_BIT_SEARCH_MODE (1<<0)
-#define SCD_MODE_REG_BIT_SBYP_MODE (1<<1)
+/*
+ * Queue (x) Read Pointers (indexes, really!), one for each Tx queue.
+ * For FIFO mode, index indicates next frame to transmit.
+ * For Scheduler-ACK mode, index indicates first frame in Tx window.
+ * Initialized by driver, updated by scheduler.
+ */
+#define SCD_QUEUE_RDPTR(x) (SCD_START_OFFSET + 0x64 + (x) * 4)
-#define SCD_TXFIFO_POS_TID (0)
-#define SCD_TXFIFO_POS_RA (4)
+/*
+ * Select which queues work in chain mode (1) vs. not (0).
+ * Use chain mode to build chains of aggregated frames.
+ * Bit fields:
+ * 31-16: Reserved
+ * 15-00: Mode, one bit for each queue -- 1: Chain mode, 0: one-at-a-time
+ * NOTE: If driver sets up queue for chain mode, it should be also set up
+ * Scheduler-ACK mode as well, via SCD_QUEUE_STATUS_BITS(x).
+ */
+#define SCD_QUEUECHAIN_SEL (SCD_START_OFFSET + 0xd0)
+
+/*
+ * Select which queues interrupt driver when scheduler increments
+ * a queue's read pointer (index).
+ * Bit fields:
+ * 31-16: Reserved
+ * 15-00: Interrupt enable, one bit for each queue -- 1: enabled, 0: disabled
+ * NOTE: This functionality is apparently a no-op; driver relies on interrupts
+ * from Rx queue to read Tx command responses and update Tx queues.
+ */
+#define SCD_INTERRUPT_MASK (SCD_START_OFFSET + 0xe4)
+
+/*
+ * Queue search status registers. One for each queue.
+ * Sets up queue mode and assigns queue to Tx DMA channel.
+ * Bit fields:
+ * 19-10: Write mask/enable bits for bits 0-9
+ * 9: Driver should init to "0"
+ * 8: Scheduler-ACK mode (1), non-Scheduler-ACK (i.e. FIFO) mode (0).
+ * Driver should init to "1" for aggregation mode, or "0" otherwise.
+ * 7-6: Driver should init to "0"
+ * 5: Window Size Left; indicates whether scheduler can request
+ * another TFD, based on window size, etc. Driver should init
+ * this bit to "1" for aggregation mode, or "0" for non-agg.
+ * 4-1: Tx FIFO to use (range 0-7).
+ * 0: Queue is active (1), not active (0).
+ * Other bits should be written as "0"
+ *
+ * NOTE: If enabling Scheduler-ACK mode, chain mode should also be enabled
+ * via SCD_QUEUECHAIN_SEL.
+ */
+#define SCD_QUEUE_STATUS_BITS(x) (SCD_START_OFFSET + 0x104 + (x) * 4)
+
+/* Bit field positions */
#define SCD_QUEUE_STTS_REG_POS_ACTIVE (0)
#define SCD_QUEUE_STTS_REG_POS_TXF (1)
#define SCD_QUEUE_STTS_REG_POS_WSL (5)
#define SCD_QUEUE_STTS_REG_POS_SCD_ACK (8)
+
+/* Write masks */
#define SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN (10)
#define SCD_QUEUE_STTS_REG_MSK (0x0007FC00)
-#define SCD_QUEUE_RA_TID_MAP_RATID_MSK (0x01FF)
+/**
+ * 4965 internal SRAM structures for scheduler, shared with driver ...
+ *
+ * Driver should clear and initialize the following areas after receiving
+ * "Alive" response from 4965 uCode, i.e. after initial
+ * uCode load, or after a uCode load done for error recovery:
+ *
+ * SCD_CONTEXT_DATA_OFFSET (size 128 bytes)
+ * SCD_TX_STTS_BITMAP_OFFSET (size 256 bytes)
+ * SCD_TRANSLATE_TBL_OFFSET (size 32 bytes)
+ *
+ * Driver accesses SRAM via HBUS_TARG_MEM_* registers.
+ * Driver reads base address of this scheduler area from SCD_SRAM_BASE_ADDR.
+ * All OFFSET values must be added to this base address.
+ */
+
+/*
+ * Queue context. One 8-byte entry for each of 16 queues.
+ *
+ * Driver should clear this entire area (size 0x80) to 0 after receiving
+ * "Alive" notification from uCode. Additionally, driver should init
+ * each queue's entry as follows:
+ *
+ * LS Dword bit fields:
+ * 0-06: Max Tx window size for Scheduler-ACK. Driver should init to 64.
+ *
+ * MS Dword bit fields:
+ * 16-22: Frame limit. Driver should init to 10 (0xa).
+ *
+ * Driver should init all other bits to 0.
+ *
+ * Init must be done after driver receives "Alive" response from 4965 uCode,
+ * and when setting up queue for aggregation.
+ */
+#define SCD_CONTEXT_DATA_OFFSET 0x380
+#define SCD_CONTEXT_QUEUE_OFFSET(x) (SCD_CONTEXT_DATA_OFFSET + ((x) * 8))
#define SCD_QUEUE_CTX_REG1_WIN_SIZE_POS (0)
#define SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK (0x0000007F)
-#define SCD_QUEUE_CTX_REG1_CREDIT_POS (8)
-#define SCD_QUEUE_CTX_REG1_CREDIT_MSK (0x00FFFF00)
-#define SCD_QUEUE_CTX_REG1_SUPER_CREDIT_POS (24)
-#define SCD_QUEUE_CTX_REG1_SUPER_CREDIT_MSK (0xFF000000)
#define SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16)
#define SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000)
-#define CSR_HW_IF_CONFIG_REG_BIT_KEDRON_R (0x00000010)
-#define CSR_HW_IF_CONFIG_REG_MSK_BOARD_VER (0x00000C00)
-#define CSR_HW_IF_CONFIG_REG_BIT_MAC_SI (0x00000100)
-#define CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI (0x00000200)
-
-
- /*IWL4965-END */
-
-#define IWL4965_BROADCAST_ID (31)
-
-#define RX_RES_PHY_CNT 14
-
-#define STATISTICS_FLG_CLEAR (0x1)
-#define STATISTICS_FLG_DISABLE_NOTIFICATION (0x2)
-
-#define STATISTICS_REPLY_FLG_CLEAR (0x1)
-#define STATISTICS_REPLY_FLG_BAND_24G_MSK (0x2)
-#define STATISTICS_REPLY_FLG_TGJ_NARROW_BAND_MSK (0x4)
-#define STATISTICS_REPLY_FLG_FAT_MODE_MSK (0x8)
-#define RX_PHY_FLAGS_ANTENNAE_OFFSET (4)
-#define RX_PHY_FLAGS_ANTENNAE_MASK (0x70)
-
-struct iwl4965_rx_phy_res {
- u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */
- u8 cfg_phy_cnt; /* configurable DSP phy data byte count */
- u8 stat_id; /* configurable DSP phy data set ID */
- u8 reserved1;
- __le64 timestamp; /* TSF at on air rise */
- __le32 beacon_time_stamp; /* beacon at on-air rise */
- __le16 phy_flags; /* general phy flags: band, modulation, ... */
- __le16 channel; /* channel number */
- __le16 non_cfg_phy[RX_RES_PHY_CNT]; /* upto 14 phy entries */
- __le32 reserved2;
- struct iwl_rate rate; /* rate in ucode internal format */
- __le16 byte_count; /* frame's byte-count */
- __le16 reserved3;
-} __attribute__ ((packed));
+/*
+ * Tx Status Bitmap
+ *
+ * Driver should clear this entire area (size 0x100) to 0 after receiving
+ * "Alive" notification from uCode. Area is used only by device itself;
+ * no other support (besides clearing) is required from driver.
+ */
+#define SCD_TX_STTS_BITMAP_OFFSET 0x400
-struct iwl4965_rx_mpdu_res_start {
- __le16 byte_count;
- __le16 reserved;
-} __attribute__ ((packed));
+/*
+ * RAxTID to queue translation mapping.
+ *
+ * When queue is in Scheduler-ACK mode, frames placed in a that queue must be
+ * for only one combination of receiver address (RA) and traffic ID (TID), i.e.
+ * one QOS priority level destined for one station (for this wireless link,
+ * not final destination). The SCD_TRANSLATE_TABLE area provides 16 16-bit
+ * mappings, one for each of the 16 queues. If queue is not in Scheduler-ACK
+ * mode, the device ignores the mapping value.
+ *
+ * Bit fields, for each 16-bit map:
+ * 15-9: Reserved, set to 0
+ * 8-4: Index into device's station table for recipient station
+ * 3-0: Traffic ID (tid), range 0-15
+ *
+ * Driver should clear this entire area (size 32 bytes) to 0 after receiving
+ * "Alive" notification from uCode. To update a 16-bit map value, driver
+ * must read a dword-aligned value from device SRAM, replace the 16-bit map
+ * value of interest, and write the dword value back into device SRAM.
+ */
+#define SCD_TRANSLATE_TBL_OFFSET 0x500
-#if 0
+/* Find translation table dword to read/write for given queue */
+#define SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \
+ ((SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffffffc)
-union iwl_dram_scratch_union {
- struct iwl_dram_scratch s;
- __le32 dw;
-};
+#define SCD_TXFIFO_POS_TID (0)
+#define SCD_TXFIFO_POS_RA (4)
+#define SCD_QUEUE_RA_TID_MAP_RATID_MSK (0x01FF)
-struct iwl4965_beacon_notify {
- struct iwl_tx_resp beacon_notify_hdr; /*15:4 */
- __le32 low_tsf; /*19:16 */
- __le32 high_tsf; /*23:20 */
- __le32 ibss_mgr_status; /*27:24 */
-} __attribute__ ((packed));
+/*********************** END TX SCHEDULER *************************************/
-struct iwl4965_tx_beacon_cmd {
- struct iwl_tx_cmd tx; /*byte 55:4 */
- __le16 tim_idx; /*byte 57:56 */
- u8 tim_size; /*byte 58 */
- u8 reserved1; /*byte 59 */
- struct ieee80211_hdr frame[0];
- /* Beacon Frame */
-} __attribute__ ((packed));
+static inline u8 iwl4965_hw_get_rate(__le32 rate_n_flags)
+{
+ return le32_to_cpu(rate_n_flags) & 0xFF;
+}
+static inline u16 iwl4965_hw_get_rate_n_flags(__le32 rate_n_flags)
+{
+ return le32_to_cpu(rate_n_flags) & 0xFFFF;
+}
+static inline __le32 iwl4965_hw_set_rate_n_flags(u8 rate, u16 flags)
+{
+ return cpu_to_le32(flags|(u16)rate);
+}
-struct iwl4965_powertable_cmd {
- __le16 flags;
- u8 keep_alive_seconds;
- u8 debug_flags;
- __le32 rx_data_timeout;
- __le32 tx_data_timeout;
- __le32 sleep_interval[PMC_TCMD_SLEEP_INTRVL_TABLE_SIZE];
- __le32 keep_alive_beacons;
-} __attribute__ ((packed));
-#define IWL_NUM_OF_STATIONS ( 32 )
-#define BYTE_CNT_AREA_OFFSET 0
+/**
+ * Tx/Rx Queues
+ *
+ * Most communication between driver and 4965 is via queues of data buffers.
+ * For example, all commands that the driver issues to device's embedded
+ * controller (uCode) are via the command queue (one of the Tx queues). All
+ * uCode command responses/replies/notifications, including Rx frames, are
+ * conveyed from uCode to driver via the Rx queue.
+ *
+ * Most support for these queues, including handshake support, resides in
+ * structures in host DRAM, shared between the driver and the device. When
+ * allocating this memory, the driver must make sure that data written by
+ * the host CPU updates DRAM immediately (and does not get "stuck" in CPU's
+ * cache memory), so DRAM and cache are consistent, and the device can
+ * immediately see changes made by the driver.
+ *
+ * 4965 supports up to 16 DRAM-based Tx queues, and services these queues via
+ * up to 7 DMA channels (FIFOs). Each Tx queue is supported by a circular array
+ * in DRAM containing 256 Transmit Frame Descriptors (TFDs).
+ */
+#define IWL4965_MAX_WIN_SIZE 64
+#define IWL4965_QUEUE_SIZE 256
+#define IWL4965_NUM_FIFOS 7
+#define IWL_MAX_NUM_QUEUES 16
-enum HT_STATUS {
- BA_STATUS_FAILURE = 0,
- BA_STATUS_INITIATOR_DELBA,
- BA_STATUS_RECIPIENT_DELBA,
- BA_STATUS_RENEW_ADDBA_REQUEST,
- BA_STATUS_ACTIVE,
-};
-#endif
-
-#define IWL_AGC_DB_MASK (0x3f80) /* MASK(7,13) */
-#define IWL_AGC_DB_POS (7)
-/* Fixed (non-configurable) rx data from phy */
-struct iwl4965_rx_non_cfg_phy {
- __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */
- __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */
- u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */
- u8 pad[0];
-} __attribute__ ((packed));
-struct iwl_tfd_frame_data {
+/**
+ * struct iwl4965_tfd_frame_data
+ *
+ * Describes up to 2 buffers containing (contiguous) portions of a Tx frame.
+ * Each buffer must be on dword boundary.
+ * Up to 10 iwl_tfd_frame_data structures, describing up to 20 buffers,
+ * may be filled within a TFD (iwl_tfd_frame).
+ *
+ * Bit fields in tb1_addr:
+ * 31- 0: Tx buffer 1 address bits [31:0]
+ *
+ * Bit fields in val1:
+ * 31-16: Tx buffer 2 address bits [15:0]
+ * 15- 4: Tx buffer 1 length (bytes)
+ * 3- 0: Tx buffer 1 address bits [32:32]
+ *
+ * Bit fields in val2:
+ * 31-20: Tx buffer 2 length (bytes)
+ * 19- 0: Tx buffer 2 address bits [35:16]
+ */
+struct iwl4965_tfd_frame_data {
__le32 tb1_addr;
__le32 val1;
@@ -835,7 +1926,36 @@ struct iwl_tfd_frame_data {
#define IWL_tb2_len_SYM val2
} __attribute__ ((packed));
-struct iwl_tfd_frame {
+
+/**
+ * struct iwl4965_tfd_frame
+ *
+ * Transmit Frame Descriptor (TFD)
+ *
+ * 4965 supports up to 16 Tx queues resident in host DRAM.
+ * Each Tx queue uses a circular buffer of 256 TFDs stored in host DRAM.
+ * Both driver and device share these circular buffers, each of which must be
+ * contiguous 256 TFDs x 128 bytes-per-TFD = 32 KBytes for 4965.
+ *
+ * Driver must indicate the physical address of the base of each
+ * circular buffer via the 4965's FH_MEM_CBBC_QUEUE registers.
+ *
+ * Each TFD contains pointer/size information for up to 20 data buffers
+ * in host DRAM. These buffers collectively contain the (one) frame described
+ * by the TFD. Each buffer must be a single contiguous block of memory within
+ * itself, but buffers may be scattered in host DRAM. Each buffer has max size
+ * of (4K - 4). The 4965 concatenates all of a TFD's buffers into a single
+ * Tx frame, up to 8 KBytes in size.
+ *
+ * Bit fields in the control dword (val0):
+ * 31-30: # dwords (0-3) of padding required at end of frame for 16-byte bound
+ * 29: reserved
+ * 28-24: # Transmit Buffer Descriptors in TFD
+ * 23- 0: reserved
+ *
+ * A maximum of 255 (not 256!) TFDs may be on a queue waiting for Tx.
+ */
+struct iwl4965_tfd_frame {
__le32 val0;
/* __le32 rsvd1:24; */
/* __le32 num_tbs:5; */
@@ -844,15 +1964,20 @@ struct iwl_tfd_frame {
#define IWL_num_tbs_SYM val0
/* __le32 rsvd2:1; */
/* __le32 padding:2; */
- struct iwl_tfd_frame_data pa[10];
+ struct iwl4965_tfd_frame_data pa[10];
__le32 reserved;
} __attribute__ ((packed));
-#define IWL4965_MAX_WIN_SIZE 64
-#define IWL4965_QUEUE_SIZE 256
-#define IWL4965_NUM_FIFOS 7
-#define IWL4965_NUM_QUEUES 16
+/**
+ * struct iwl4965_queue_byte_cnt_entry
+ *
+ * Byte Count Table Entry
+ *
+ * Bit fields:
+ * 15-12: reserved
+ * 11- 0: total to-be-transmitted byte count of frame (does not include command)
+ */
struct iwl4965_queue_byte_cnt_entry {
__le16 val;
/* __le16 byte_cnt:12; */
@@ -862,6 +1987,25 @@ struct iwl4965_queue_byte_cnt_entry {
/* __le16 rsvd:4; */
} __attribute__ ((packed));
+
+/**
+ * struct iwl4965_sched_queue_byte_cnt_tbl
+ *
+ * Byte Count table
+ *
+ * Each Tx queue uses a byte-count table containing 320 entries:
+ * one 16-bit entry for each of 256 TFDs, plus an additional 64 entries that
+ * duplicate the first 64 entries (to avoid wrap-around within a Tx window;
+ * max Tx window is 64 TFDs).
+ *
+ * When driver sets up a new TFD, it must also enter the total byte count
+ * of the frame to be transmitted into the corresponding entry in the byte
+ * count table for the chosen Tx queue. If the TFD index is 0-63, the driver
+ * must duplicate the byte count entry in corresponding index 256-319.
+ *
+ * "dont_care" padding puts each byte count table on a 1024-byte boundary;
+ * 4965 assumes tables are separated by 1024 bytes.
+ */
struct iwl4965_sched_queue_byte_cnt_tbl {
struct iwl4965_queue_byte_cnt_entry tfd_offset[IWL4965_QUEUE_SIZE +
IWL4965_MAX_WIN_SIZE];
@@ -870,11 +2014,33 @@ struct iwl4965_sched_queue_byte_cnt_tbl {
sizeof(__le16)];
} __attribute__ ((packed));
-/* Base physical address of iwl_shared is provided to SCD_DRAM_BASE_ADDR
- * and &iwl_shared.val0 is provided to FH_RSCSR_CHNL0_STTS_WPTR_REG */
-struct iwl_shared {
+
+/**
+ * struct iwl4965_shared - handshake area for Tx and Rx
+ *
+ * For convenience in allocating memory, this structure combines 2 areas of
+ * DRAM which must be shared between driver and 4965. These do not need to
+ * be combined, if better allocation would result from keeping them separate:
+ *
+ * 1) The Tx byte count tables occupy 1024 bytes each (16 KBytes total for
+ * 16 queues). Driver uses SCD_DRAM_BASE_ADDR to tell 4965 where to find
+ * the first of these tables. 4965 assumes tables are 1024 bytes apart.
+ *
+ * 2) The Rx status (val0 and val1) occupies only 8 bytes. Driver uses
+ * FH_RSCSR_CHNL0_STTS_WPTR_REG to tell 4965 where to find this area.
+ * Driver reads val0 to determine the latest Receive Buffer Descriptor (RBD)
+ * that has been filled by the 4965.
+ *
+ * Bit fields val0:
+ * 31-12: Not used
+ * 11- 0: Index of last filled Rx buffer descriptor (4965 writes, driver reads)
+ *
+ * Bit fields val1:
+ * 31- 0: Not used
+ */
+struct iwl4965_shared {
struct iwl4965_sched_queue_byte_cnt_tbl
- queues_byte_cnt_tbls[IWL4965_NUM_QUEUES];
+ queues_byte_cnt_tbls[IWL_MAX_NUM_QUEUES];
__le32 val0;
/* __le32 rb_closed_stts_rb_num:12; */
@@ -904,4 +2070,4 @@ struct iwl_shared {
__le32 padding2;
} __attribute__ ((packed));
-#endif /* __iwl_4965_hw_h__ */
+#endif /* __iwl4965_4965_hw_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-io.h b/drivers/net/wireless/iwlwifi/iwl-4965-io.h
new file mode 100644
index 0000000..34a0b57
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-io.h
@@ -0,0 +1,431 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
+ *
+ * Portions of this file are derived from the ipw3945 project.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#ifndef __iwl4965_io_h__
+#define __iwl4965_io_h__
+
+#include <linux/io.h>
+
+#include "iwl-4965-debug.h"
+
+/*
+ * IO, register, and NIC memory access functions
+ *
+ * NOTE on naming convention and macro usage for these
+ *
+ * A single _ prefix before a an access function means that no state
+ * check or debug information is printed when that function is called.
+ *
+ * A double __ prefix before an access function means that state is checked
+ * and the current line number is printed in addition to any other debug output.
+ *
+ * The non-prefixed name is the #define that maps the caller into a
+ * #define that provides the caller's __LINE__ to the double prefix version.
+ *
+ * If you wish to call the function without any debug or state checking,
+ * you should use the single _ prefix version (as is used by dependent IO
+ * routines, for example _iwl4965_read_direct32 calls the non-check version of
+ * _iwl4965_read32.)
+ *
+ * These declarations are *extremely* useful in quickly isolating code deltas
+ * which result in misconfiguring of the hardware I/O. In combination with
+ * git-bisect and the IO debug level you can quickly determine the specific
+ * commit which breaks the IO sequence to the hardware.
+ *
+ */
+
+#define _iwl4965_write32(iwl, ofs, val) writel((val), (iwl)->hw_base + (ofs))
+#ifdef CONFIG_IWL4965_DEBUG
+static inline void __iwl4965_write32(const char *f, u32 l, struct iwl4965_priv *iwl,
+ u32 ofs, u32 val)
+{
+ IWL_DEBUG_IO("write32(0x%08X, 0x%08X) - %s %d\n", ofs, val, f, l);
+ _iwl4965_write32(iwl, ofs, val);
+}
+#define iwl4965_write32(iwl, ofs, val) \
+ __iwl4965_write32(__FILE__, __LINE__, iwl, ofs, val)
+#else
+#define iwl4965_write32(iwl, ofs, val) _iwl4965_write32(iwl, ofs, val)
+#endif
+
+#define _iwl4965_read32(iwl, ofs) readl((iwl)->hw_base + (ofs))
+#ifdef CONFIG_IWL4965_DEBUG
+static inline u32 __iwl4965_read32(char *f, u32 l, struct iwl4965_priv *iwl, u32 ofs)
+{
+ IWL_DEBUG_IO("read_direct32(0x%08X) - %s %d\n", ofs, f, l);
+ return _iwl4965_read32(iwl, ofs);
+}
+#define iwl4965_read32(iwl, ofs) __iwl4965_read32(__FILE__, __LINE__, iwl, ofs)
+#else
+#define iwl4965_read32(p, o) _iwl4965_read32(p, o)
+#endif
+
+static inline int _iwl4965_poll_bit(struct iwl4965_priv *priv, u32 addr,
+ u32 bits, u32 mask, int timeout)
+{
+ int i = 0;
+
+ do {
+ if ((_iwl4965_read32(priv, addr) & mask) == (bits & mask))
+ return i;
+ mdelay(10);
+ i += 10;
+ } while (i < timeout);
+
+ return -ETIMEDOUT;
+}
+#ifdef CONFIG_IWL4965_DEBUG
+static inline int __iwl4965_poll_bit(const char *f, u32 l,
+ struct iwl4965_priv *priv, u32 addr,
+ u32 bits, u32 mask, int timeout)
+{
+ int ret = _iwl4965_poll_bit(priv, addr, bits, mask, timeout);
+ if (unlikely(ret == -ETIMEDOUT))
+ IWL_DEBUG_IO
+ ("poll_bit(0x%08X, 0x%08X, 0x%08X) - timedout - %s %d\n",
+ addr, bits, mask, f, l);
+ else
+ IWL_DEBUG_IO
+ ("poll_bit(0x%08X, 0x%08X, 0x%08X) = 0x%08X - %s %d\n",
+ addr, bits, mask, ret, f, l);
+ return ret;
+}
+#define iwl4965_poll_bit(iwl, addr, bits, mask, timeout) \
+ __iwl4965_poll_bit(__FILE__, __LINE__, iwl, addr, bits, mask, timeout)
+#else
+#define iwl4965_poll_bit(p, a, b, m, t) _iwl4965_poll_bit(p, a, b, m, t)
+#endif
+
+static inline void _iwl4965_set_bit(struct iwl4965_priv *priv, u32 reg, u32 mask)
+{
+ _iwl4965_write32(priv, reg, _iwl4965_read32(priv, reg) | mask);
+}
+#ifdef CONFIG_IWL4965_DEBUG
+static inline void __iwl4965_set_bit(const char *f, u32 l,
+ struct iwl4965_priv *priv, u32 reg, u32 mask)
+{
+ u32 val = _iwl4965_read32(priv, reg) | mask;
+ IWL_DEBUG_IO("set_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
+ _iwl4965_write32(priv, reg, val);
+}
+#define iwl4965_set_bit(p, r, m) __iwl4965_set_bit(__FILE__, __LINE__, p, r, m)
+#else
+#define iwl4965_set_bit(p, r, m) _iwl4965_set_bit(p, r, m)
+#endif
+
+static inline void _iwl4965_clear_bit(struct iwl4965_priv *priv, u32 reg, u32 mask)
+{
+ _iwl4965_write32(priv, reg, _iwl4965_read32(priv, reg) & ~mask);
+}
+#ifdef CONFIG_IWL4965_DEBUG
+static inline void __iwl4965_clear_bit(const char *f, u32 l,
+ struct iwl4965_priv *priv, u32 reg, u32 mask)
+{
+ u32 val = _iwl4965_read32(priv, reg) & ~mask;
+ IWL_DEBUG_IO("clear_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
+ _iwl4965_write32(priv, reg, val);
+}
+#define iwl4965_clear_bit(p, r, m) __iwl4965_clear_bit(__FILE__, __LINE__, p, r, m)
+#else
+#define iwl4965_clear_bit(p, r, m) _iwl4965_clear_bit(p, r, m)
+#endif
+
+static inline int _iwl4965_grab_nic_access(struct iwl4965_priv *priv)
+{
+ int ret;
+ u32 gp_ctl;
+
+#ifdef CONFIG_IWL4965_DEBUG
+ if (atomic_read(&priv->restrict_refcnt))
+ return 0;
+#endif
+ if (test_bit(STATUS_RF_KILL_HW, &priv->status) ||
+ test_bit(STATUS_RF_KILL_SW, &priv->status)) {
+ IWL_WARNING("WARNING: Requesting MAC access during RFKILL "
+ "wakes up NIC\n");
+
+ /* 10 msec allows time for NIC to complete its data save */
+ gp_ctl = _iwl4965_read32(priv, CSR_GP_CNTRL);
+ if (gp_ctl & CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY) {
+ IWL_DEBUG_RF_KILL("Wait for complete power-down, "
+ "gpctl = 0x%08x\n", gp_ctl);
+ mdelay(10);
+ } else
+ IWL_DEBUG_RF_KILL("power-down complete, "
+ "gpctl = 0x%08x\n", gp_ctl);
+ }
+
+ /* this bit wakes up the NIC */
+ _iwl4965_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ ret = _iwl4965_poll_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN,
+ (CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY |
+ CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 50);
+ if (ret < 0) {
+ IWL_ERROR("MAC is in deep sleep!\n");
+ return -EIO;
+ }
+
+#ifdef CONFIG_IWL4965_DEBUG
+ atomic_inc(&priv->restrict_refcnt);
+#endif
+ return 0;
+}
+
+#ifdef CONFIG_IWL4965_DEBUG
+static inline int __iwl4965_grab_nic_access(const char *f, u32 l,
+ struct iwl4965_priv *priv)
+{
+ if (atomic_read(&priv->restrict_refcnt))
+ IWL_DEBUG_INFO("Grabbing access while already held at "
+ "line %d.\n", l);
+
+ IWL_DEBUG_IO("grabbing nic access - %s %d\n", f, l);
+ return _iwl4965_grab_nic_access(priv);
+}
+#define iwl4965_grab_nic_access(priv) \
+ __iwl4965_grab_nic_access(__FILE__, __LINE__, priv)
+#else
+#define iwl4965_grab_nic_access(priv) \
+ _iwl4965_grab_nic_access(priv)
+#endif
+
+static inline void _iwl4965_release_nic_access(struct iwl4965_priv *priv)
+{
+#ifdef CONFIG_IWL4965_DEBUG
+ if (atomic_dec_and_test(&priv->restrict_refcnt))
+#endif
+ _iwl4965_clear_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+}
+#ifdef CONFIG_IWL4965_DEBUG
+static inline void __iwl4965_release_nic_access(const char *f, u32 l,
+ struct iwl4965_priv *priv)
+{
+ if (atomic_read(&priv->restrict_refcnt) <= 0)
+ IWL_ERROR("Release unheld nic access at line %d.\n", l);
+
+ IWL_DEBUG_IO("releasing nic access - %s %d\n", f, l);
+ _iwl4965_release_nic_access(priv);
+}
+#define iwl4965_release_nic_access(priv) \
+ __iwl4965_release_nic_access(__FILE__, __LINE__, priv)
+#else
+#define iwl4965_release_nic_access(priv) \
+ _iwl4965_release_nic_access(priv)
+#endif
+
+static inline u32 _iwl4965_read_direct32(struct iwl4965_priv *priv, u32 reg)
+{
+ return _iwl4965_read32(priv, reg);
+}
+#ifdef CONFIG_IWL4965_DEBUG
+static inline u32 __iwl4965_read_direct32(const char *f, u32 l,
+ struct iwl4965_priv *priv, u32 reg)
+{
+ u32 value = _iwl4965_read_direct32(priv, reg);
+ if (!atomic_read(&priv->restrict_refcnt))
+ IWL_ERROR("Nic access not held from %s %d\n", f, l);
+ IWL_DEBUG_IO("read_direct32(0x%4X) = 0x%08x - %s %d \n", reg, value,
+ f, l);
+ return value;
+}
+#define iwl4965_read_direct32(priv, reg) \
+ __iwl4965_read_direct32(__FILE__, __LINE__, priv, reg)
+#else
+#define iwl4965_read_direct32 _iwl4965_read_direct32
+#endif
+
+static inline void _iwl4965_write_direct32(struct iwl4965_priv *priv,
+ u32 reg, u32 value)
+{
+ _iwl4965_write32(priv, reg, value);
+}
+#ifdef CONFIG_IWL4965_DEBUG
+static void __iwl4965_write_direct32(u32 line,
+ struct iwl4965_priv *priv, u32 reg, u32 value)
+{
+ if (!atomic_read(&priv->restrict_refcnt))
+ IWL_ERROR("Nic access not held from line %d\n", line);
+ _iwl4965_write_direct32(priv, reg, value);
+}
+#define iwl4965_write_direct32(priv, reg, value) \
+ __iwl4965_write_direct32(__LINE__, priv, reg, value)
+#else
+#define iwl4965_write_direct32 _iwl4965_write_direct32
+#endif
+
+static inline void iwl4965_write_reg_buf(struct iwl4965_priv *priv,
+ u32 reg, u32 len, u32 *values)
+{
+ u32 count = sizeof(u32);
+
+ if ((priv != NULL) && (values != NULL)) {
+ for (; 0 < len; len -= count, reg += count, values++)
+ _iwl4965_write_direct32(priv, reg, *values);
+ }
+}
+
+static inline int _iwl4965_poll_direct_bit(struct iwl4965_priv *priv,
+ u32 addr, u32 mask, int timeout)
+{
+ int i = 0;
+
+ do {
+ if ((_iwl4965_read_direct32(priv, addr) & mask) == mask)
+ return i;
+ mdelay(10);
+ i += 10;
+ } while (i < timeout);
+
+ return -ETIMEDOUT;
+}
+
+#ifdef CONFIG_IWL4965_DEBUG
+static inline int __iwl4965_poll_direct_bit(const char *f, u32 l,
+ struct iwl4965_priv *priv,
+ u32 addr, u32 mask, int timeout)
+{
+ int ret = _iwl4965_poll_direct_bit(priv, addr, mask, timeout);
+
+ if (unlikely(ret == -ETIMEDOUT))
+ IWL_DEBUG_IO("poll_direct_bit(0x%08X, 0x%08X) - "
+ "timedout - %s %d\n", addr, mask, f, l);
+ else
+ IWL_DEBUG_IO("poll_direct_bit(0x%08X, 0x%08X) = 0x%08X "
+ "- %s %d\n", addr, mask, ret, f, l);
+ return ret;
+}
+#define iwl4965_poll_direct_bit(iwl, addr, mask, timeout) \
+ __iwl4965_poll_direct_bit(__FILE__, __LINE__, iwl, addr, mask, timeout)
+#else
+#define iwl4965_poll_direct_bit _iwl4965_poll_direct_bit
+#endif
+
+static inline u32 _iwl4965_read_prph(struct iwl4965_priv *priv, u32 reg)
+{
+ _iwl4965_write_direct32(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
+ return _iwl4965_read_direct32(priv, HBUS_TARG_PRPH_RDAT);
+}
+#ifdef CONFIG_IWL4965_DEBUG
+static inline u32 __iwl4965_read_prph(u32 line, struct iwl4965_priv *priv, u32 reg)
+{
+ if (!atomic_read(&priv->restrict_refcnt))
+ IWL_ERROR("Nic access not held from line %d\n", line);
+ return _iwl4965_read_prph(priv, reg);
+}
+
+#define iwl4965_read_prph(priv, reg) \
+ __iwl4965_read_prph(__LINE__, priv, reg)
+#else
+#define iwl4965_read_prph _iwl4965_read_prph
+#endif
+
+static inline void _iwl4965_write_prph(struct iwl4965_priv *priv,
+ u32 addr, u32 val)
+{
+ _iwl4965_write_direct32(priv, HBUS_TARG_PRPH_WADDR,
+ ((addr & 0x0000FFFF) | (3 << 24)));
+ _iwl4965_write_direct32(priv, HBUS_TARG_PRPH_WDAT, val);
+}
+#ifdef CONFIG_IWL4965_DEBUG
+static inline void __iwl4965_write_prph(u32 line, struct iwl4965_priv *priv,
+ u32 addr, u32 val)
+{
+ if (!atomic_read(&priv->restrict_refcnt))
+ IWL_ERROR("Nic access from line %d\n", line);
+ _iwl4965_write_prph(priv, addr, val);
+}
+
+#define iwl4965_write_prph(priv, addr, val) \
+ __iwl4965_write_prph(__LINE__, priv, addr, val);
+#else
+#define iwl4965_write_prph _iwl4965_write_prph
+#endif
+
+#define _iwl4965_set_bits_prph(priv, reg, mask) \
+ _iwl4965_write_prph(priv, reg, (_iwl4965_read_prph(priv, reg) | mask))
+#ifdef CONFIG_IWL4965_DEBUG
+static inline void __iwl4965_set_bits_prph(u32 line, struct iwl4965_priv *priv,
+ u32 reg, u32 mask)
+{
+ if (!atomic_read(&priv->restrict_refcnt))
+ IWL_ERROR("Nic access not held from line %d\n", line);
+
+ _iwl4965_set_bits_prph(priv, reg, mask);
+}
+#define iwl4965_set_bits_prph(priv, reg, mask) \
+ __iwl4965_set_bits_prph(__LINE__, priv, reg, mask)
+#else
+#define iwl4965_set_bits_prph _iwl4965_set_bits_prph
+#endif
+
+#define _iwl4965_set_bits_mask_prph(priv, reg, bits, mask) \
+ _iwl4965_write_prph(priv, reg, ((_iwl4965_read_prph(priv, reg) & mask) | bits))
+
+#ifdef CONFIG_IWL4965_DEBUG
+static inline void __iwl4965_set_bits_mask_prph(u32 line,
+ struct iwl4965_priv *priv, u32 reg, u32 bits, u32 mask)
+{
+ if (!atomic_read(&priv->restrict_refcnt))
+ IWL_ERROR("Nic access not held from line %d\n", line);
+ _iwl4965_set_bits_mask_prph(priv, reg, bits, mask);
+}
+#define iwl4965_set_bits_mask_prph(priv, reg, bits, mask) \
+ __iwl4965_set_bits_mask_prph(__LINE__, priv, reg, bits, mask)
+#else
+#define iwl4965_set_bits_mask_prph _iwl4965_set_bits_mask_prph
+#endif
+
+static inline void iwl4965_clear_bits_prph(struct iwl4965_priv
+ *priv, u32 reg, u32 mask)
+{
+ u32 val = _iwl4965_read_prph(priv, reg);
+ _iwl4965_write_prph(priv, reg, (val & ~mask));
+}
+
+static inline u32 iwl4965_read_targ_mem(struct iwl4965_priv *priv, u32 addr)
+{
+ iwl4965_write_direct32(priv, HBUS_TARG_MEM_RADDR, addr);
+ return iwl4965_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+}
+
+static inline void iwl4965_write_targ_mem(struct iwl4965_priv *priv, u32 addr, u32 val)
+{
+ iwl4965_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
+ iwl4965_write_direct32(priv, HBUS_TARG_MEM_WDAT, val);
+}
+
+static inline void iwl4965_write_targ_mem_buf(struct iwl4965_priv *priv, u32 addr,
+ u32 len, u32 *values)
+{
+ iwl4965_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
+ for (; 0 < len; len -= sizeof(u32), values++)
+ iwl4965_write_direct32(priv, HBUS_TARG_MEM_WDAT, *values);
+}
+#endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-rs.c b/drivers/net/wireless/iwlwifi/iwl-4965-rs.c
index 1c5b50b..60fc9ec 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-rs.c
@@ -36,28 +36,23 @@
#include <linux/workqueue.h>
-#include <net/mac80211.h>
-#include <linux/wireless.h>
-
#include "../net/mac80211/ieee80211_rate.h"
-#include "iwlwifi.h"
-#include "iwl-4965-rs.h"
+#include "iwl-4965.h"
#include "iwl-helpers.h"
#define RS_NAME "iwl-4965-rs"
#define NUM_TRY_BEFORE_ANTENNA_TOGGLE 1
#define IWL_NUMBER_TRY 1
-#define IWL_HT_NUMBER_TRY 1
+#define IWL_HT_NUMBER_TRY 3
-#define IWL_RATE_MAX_WINDOW 62
-#define IWL_RATE_HIGH_TH 10880
-#define IWL_RATE_MIN_FAILURE_TH 6
-#define IWL_RATE_MIN_SUCCESS_TH 8
-#define IWL_RATE_DECREASE_TH 1920
-#define IWL_RATE_INCREASE_TH 8960
-#define IWL_RATE_SCALE_FLUSH_INTVL (2*HZ) /*2 seconds */
+#define IWL_RATE_MAX_WINDOW 62 /* # tx in history window */
+#define IWL_RATE_MIN_FAILURE_TH 6 /* min failures to calc tpt */
+#define IWL_RATE_MIN_SUCCESS_TH 8 /* min successes to calc tpt */
+
+/* max time to accum history 2 seconds */
+#define IWL_RATE_SCALE_FLUSH_INTVL (2*HZ)
static u8 rs_ht_to_legacy[] = {
IWL_RATE_6M_INDEX, IWL_RATE_6M_INDEX,
@@ -69,65 +64,109 @@ static u8 rs_ht_to_legacy[] = {
IWL_RATE_48M_INDEX, IWL_RATE_54M_INDEX
};
-struct iwl_rate_scale_data {
- u64 data;
- s32 success_counter;
- s32 success_ratio;
- s32 counter;
- s32 average_tpt;
+struct iwl4965_rate {
+ u32 rate_n_flags;
+} __attribute__ ((packed));
+
+/**
+ * struct iwl4965_rate_scale_data -- tx success history for one rate
+ */
+struct iwl4965_rate_scale_data {
+ u64 data; /* bitmap of successful frames */
+ s32 success_counter; /* number of frames successful */
+ s32 success_ratio; /* per-cent * 128 */
+ s32 counter; /* number of frames attempted */
+ s32 average_tpt; /* success ratio * expected throughput */
unsigned long stamp;
};
-struct iwl_scale_tbl_info {
- enum iwl_table_type lq_type;
- enum iwl_antenna_type antenna_type;
- u8 is_SGI;
- u8 is_fat;
- u8 is_dup;
- s32 *expected_tpt;
- u8 action;
- struct iwl_rate current_rate;
- struct iwl_rate_scale_data win[IWL_RATE_COUNT];
+/**
+ * struct iwl4965_scale_tbl_info -- tx params and success history for all rates
+ *
+ * There are two of these in struct iwl_rate_scale_priv,
+ * one for "active", and one for "search".
+ */
+struct iwl4965_scale_tbl_info {
+ enum iwl4965_table_type lq_type;
+ enum iwl4965_antenna_type antenna_type;
+ u8 is_SGI; /* 1 = short guard interval */
+ u8 is_fat; /* 1 = 40 MHz channel width */
+ u8 is_dup; /* 1 = duplicated data streams */
+ u8 action; /* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */
+ s32 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */
+ struct iwl4965_rate current_rate; /* rate_n_flags, uCode API format */
+ struct iwl4965_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */
};
-struct iwl_rate_scale_priv {
- u8 active_tbl;
- u8 enable_counter;
- u8 stay_in_tbl;
- u8 search_better_tbl;
+/**
+ * struct iwl_rate_scale_priv -- driver's rate scaling private structure
+ *
+ * Pointer to this gets passed back and forth between driver and mac80211.
+ */
+struct iwl4965_rate_scale_priv {
+ u8 active_tbl; /* index of active table, range 0-1 */
+ u8 enable_counter; /* indicates HT mode */
+ u8 stay_in_tbl; /* 1: disallow, 0: allow search for new mode */
+ u8 search_better_tbl; /* 1: currently trying alternate mode */
s32 last_tpt;
+
+ /* The following determine when to search for a new mode */
u32 table_count_limit;
- u32 max_failure_limit;
- u32 max_success_limit;
+ u32 max_failure_limit; /* # failed frames before new search */
+ u32 max_success_limit; /* # successful frames before new search */
u32 table_count;
- u32 total_failed;
- u32 total_success;
- u8 action_counter;
- u32 flush_timer;
- u8 commit_lq;
+ u32 total_failed; /* total failed frames, any/all rates */
+ u32 total_success; /* total successful frames, any/all rates */
+ u32 flush_timer; /* time staying in mode before new search */
+
+ u8 action_counter; /* # mode-switch actions tried */
u8 antenna;
u8 valid_antenna;
u8 is_green;
u8 is_dup;
u8 phymode;
- u8 ready;
+ u8 ibss_sta_added;
+
+ /* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */
+ u32 supp_rates;
u16 active_rate;
u16 active_siso_rate;
u16 active_mimo_rate;
u16 active_rate_basic;
- struct iwl_link_quality_cmd lq;
- struct iwl_scale_tbl_info lq_info[LQ_SIZE];
+
+ struct iwl4965_link_quality_cmd lq;
+ struct iwl4965_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct dentry *rs_sta_dbgfs_scale_table_file;
+ struct dentry *rs_sta_dbgfs_stats_table_file;
+ struct iwl4965_rate dbg_fixed;
+ struct iwl4965_priv *drv;
+#endif
};
-static void rs_rate_scale_perform(struct iwl_priv *priv,
+static void rs_rate_scale_perform(struct iwl4965_priv *priv,
struct net_device *dev,
struct ieee80211_hdr *hdr,
struct sta_info *sta);
-static int rs_fill_link_cmd(struct iwl_rate_scale_priv *lq_data,
- struct iwl_rate *tx_mcs,
- struct iwl_link_quality_cmd *tbl);
-
+static void rs_fill_link_cmd(struct iwl4965_rate_scale_priv *lq_data,
+ struct iwl4965_rate *tx_mcs,
+ struct iwl4965_link_quality_cmd *tbl);
+
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+static void rs_dbgfs_set_mcs(struct iwl4965_rate_scale_priv *rs_priv,
+ struct iwl4965_rate *mcs, int index);
+#else
+static void rs_dbgfs_set_mcs(struct iwl4965_rate_scale_priv *rs_priv,
+ struct iwl4965_rate *mcs, int index)
+{}
+#endif
+/*
+ * Expected throughput metrics for following rates:
+ * 1, 2, 5.5, 11, 6, 9, 12, 18, 24, 36, 48, 54, 60 MBits
+ * "G" is the only table that supports CCK (the first 4 rates).
+ */
static s32 expected_tpt_A[IWL_RATE_COUNT] = {
0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186, 186
};
@@ -168,31 +207,34 @@ static s32 expected_tpt_mimo40MHzSGI[IWL_RATE_COUNT] = {
0, 0, 0, 0, 131, 131, 191, 222, 242, 270, 284, 289, 293
};
-static int iwl_lq_sync_callback(struct iwl_priv *priv,
- struct iwl_cmd *cmd, struct sk_buff *skb)
+static int iwl4965_lq_sync_callback(struct iwl4965_priv *priv,
+ struct iwl4965_cmd *cmd, struct sk_buff *skb)
{
/*We didn't cache the SKB; let the caller free it */
return 1;
}
-static int rs_send_lq_cmd(struct iwl_priv *priv,
- struct iwl_link_quality_cmd *lq, u8 flags)
+static inline u8 iwl4965_rate_get_rate(u32 rate_n_flags)
{
-#ifdef CONFIG_IWLWIFI_DEBUG
+ return (u8)(rate_n_flags & 0xFF);
+}
+
+static int rs_send_lq_cmd(struct iwl4965_priv *priv,
+ struct iwl4965_link_quality_cmd *lq, u8 flags)
+{
+#ifdef CONFIG_IWL4965_DEBUG
int i;
#endif
- int rc = -1;
-
- struct iwl_host_cmd cmd = {
+ struct iwl4965_host_cmd cmd = {
.id = REPLY_TX_LINK_QUALITY_CMD,
- .len = sizeof(struct iwl_link_quality_cmd),
+ .len = sizeof(struct iwl4965_link_quality_cmd),
.meta.flags = flags,
.data = lq,
};
if ((lq->sta_id == 0xFF) &&
(priv->iw_mode == IEEE80211_IF_TYPE_IBSS))
- return rc;
+ return -EINVAL;
if (lq->sta_id == 0xFF)
lq->sta_id = IWL_AP_ID;
@@ -201,54 +243,62 @@ static int rs_send_lq_cmd(struct iwl_priv *priv,
IWL_DEBUG_RATE("lq dta 0x%X 0x%X\n",
lq->general_params.single_stream_ant_msk,
lq->general_params.dual_stream_ant_msk);
-#ifdef CONFIG_IWLWIFI_DEBUG
- for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
+#ifdef CONFIG_IWL4965_DEBUG
+ for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
IWL_DEBUG_RATE("lq index %d 0x%X\n",
- i, lq->rate_scale_table[i].rate_n_flags);
- }
+ i, lq->rs_table[i].rate_n_flags);
#endif
if (flags & CMD_ASYNC)
- cmd.meta.u.callback = iwl_lq_sync_callback;
+ cmd.meta.u.callback = iwl4965_lq_sync_callback;
- if (priv->assoc_station_added)
- rc = iwl_send_cmd(priv, &cmd);
+ if (iwl4965_is_associated(priv) && priv->assoc_station_added &&
+ priv->lq_mngr.lq_ready)
+ return iwl4965_send_cmd(priv, &cmd);
- return rc;
+ return 0;
}
-static int rs_rate_scale_clear_window(struct iwl_rate_scale_data
- *window)
+static void rs_rate_scale_clear_window(struct iwl4965_rate_scale_data *window)
{
-
window->data = 0;
window->success_counter = 0;
window->success_ratio = IWL_INVALID_VALUE;
window->counter = 0;
window->average_tpt = IWL_INVALID_VALUE;
window->stamp = 0;
- return 0;
}
-static int rs_collect_tx_data(struct iwl_rate_scale_data *windows,
+/**
+ * rs_collect_tx_data - Update the success/failure sliding window
+ *
+ * We keep a sliding window of the last 62 packets transmitted
+ * at this rate. window->data contains the bitmask of successful
+ * packets.
+ */
+static int rs_collect_tx_data(struct iwl4965_rate_scale_data *windows,
int scale_index, s32 tpt, u32 status)
{
- int rc = 0;
- struct iwl_rate_scale_data *window = NULL;
+ struct iwl4965_rate_scale_data *window = NULL;
u64 mask;
u8 win_size = IWL_RATE_MAX_WINDOW;
s32 fail_count;
- if (scale_index < 0)
- return -1;
-
- if (scale_index >= IWL_RATE_COUNT)
- return -1;
+ if (scale_index < 0 || scale_index >= IWL_RATE_COUNT)
+ return -EINVAL;
+ /* Select data for current tx bit rate */
window = &(windows[scale_index]);
+ /*
+ * Keep track of only the latest 62 tx frame attempts in this rate's
+ * history window; anything older isn't really relevant any more.
+ * If we have filled up the sliding window, drop the oldest attempt;
+ * if the oldest attempt (highest bit in bitmap) shows "success",
+ * subtract "1" from the success counter (this is the main reason
+ * we keep these bitmaps!).
+ */
if (window->counter >= win_size) {
-
window->counter = win_size - 1;
mask = 1;
mask = (mask << (win_size - 1));
@@ -258,7 +308,11 @@ static int rs_collect_tx_data(struct iwl_rate_scale_data *windows,
}
}
+ /* Increment frames-attempted counter */
window->counter = window->counter + 1;
+
+ /* Shift bitmap by one frame (throw away oldest history),
+ * OR in "1", and increment "success" if this frame was successful. */
mask = window->data;
window->data = (mask << 1);
if (status != 0) {
@@ -266,46 +320,49 @@ static int rs_collect_tx_data(struct iwl_rate_scale_data *windows,
window->data |= 0x1;
}
- if (window->counter > 0) {
+ /* Calculate current success ratio, avoid divide-by-0! */
+ if (window->counter > 0)
window->success_ratio = 128 * (100 * window->success_counter)
/ window->counter;
- } else
+ else
window->success_ratio = IWL_INVALID_VALUE;
-
fail_count = window->counter - window->success_counter;
+
+ /* Calculate average throughput, if we have enough history. */
if ((fail_count >= IWL_RATE_MIN_FAILURE_TH) ||
(window->success_counter >= IWL_RATE_MIN_SUCCESS_TH))
- window->average_tpt = ((window->success_ratio *
- tpt + 64) / 128);
+ window->average_tpt = (window->success_ratio * tpt + 64) / 128;
else
- window->average_tpt = IWL_INVALID_VALUE;
+ window->average_tpt = IWL_INVALID_VALUE;
+ /* Tag this window as having been updated */
window->stamp = jiffies;
- return rc;
+ return 0;
}
-int static rs_mcs_from_tbl(struct iwl_rate *mcs_rate,
- struct iwl_scale_tbl_info *tbl,
+/*
+ * Fill uCode API rate_n_flags field, based on "search" or "active" table.
+ */
+static void rs_mcs_from_tbl(struct iwl4965_rate *mcs_rate,
+ struct iwl4965_scale_tbl_info *tbl,
int index, u8 use_green)
{
- int rc = 0;
-
if (is_legacy(tbl->lq_type)) {
- mcs_rate->rate_n_flags = iwl_rates[index].plcp;
+ mcs_rate->rate_n_flags = iwl4965_rates[index].plcp;
if (index >= IWL_FIRST_CCK_RATE && index <= IWL_LAST_CCK_RATE)
mcs_rate->rate_n_flags |= RATE_MCS_CCK_MSK;
} else if (is_siso(tbl->lq_type)) {
if (index > IWL_LAST_OFDM_RATE)
index = IWL_LAST_OFDM_RATE;
- mcs_rate->rate_n_flags = iwl_rates[index].plcp_siso |
+ mcs_rate->rate_n_flags = iwl4965_rates[index].plcp_siso |
RATE_MCS_HT_MSK;
} else {
if (index > IWL_LAST_OFDM_RATE)
index = IWL_LAST_OFDM_RATE;
- mcs_rate->rate_n_flags = iwl_rates[index].plcp_mimo |
+ mcs_rate->rate_n_flags = iwl4965_rates[index].plcp_mimo |
RATE_MCS_HT_MSK;
}
@@ -324,7 +381,7 @@ int static rs_mcs_from_tbl(struct iwl_rate *mcs_rate,
}
if (is_legacy(tbl->lq_type))
- return rc;
+ return;
if (tbl->is_fat) {
if (tbl->is_dup)
@@ -340,27 +397,31 @@ int static rs_mcs_from_tbl(struct iwl_rate *mcs_rate,
if (is_siso(tbl->lq_type))
mcs_rate->rate_n_flags &= ~RATE_MCS_SGI_MSK;
}
- return rc;
}
-static int rs_get_tbl_info_from_mcs(struct iwl_rate *mcs_rate, int phymode,
- struct iwl_scale_tbl_info *tbl,
+/*
+ * Interpret uCode API's rate_n_flags format,
+ * fill "search" or "active" tx mode table.
+ */
+static int rs_get_tbl_info_from_mcs(const struct iwl4965_rate *mcs_rate,
+ int phymode, struct iwl4965_scale_tbl_info *tbl,
int *rate_idx)
{
int index;
u32 ant_msk;
- index = iwl_rate_index_from_plcp(mcs_rate->rate_n_flags);
+ index = iwl4965_rate_index_from_plcp(mcs_rate->rate_n_flags);
if (index == IWL_RATE_INVALID) {
*rate_idx = -1;
- return -1;
+ return -EINVAL;
}
- tbl->is_SGI = 0;
+ tbl->is_SGI = 0; /* default legacy setup */
tbl->is_fat = 0;
tbl->is_dup = 0;
- tbl->antenna_type = ANT_BOTH;
+ tbl->antenna_type = ANT_BOTH; /* default MIMO setup */
+ /* legacy rate format */
if (!(mcs_rate->rate_n_flags & RATE_MCS_HT_MSK)) {
ant_msk = (mcs_rate->rate_n_flags & RATE_MCS_ANT_AB_MSK);
@@ -368,8 +429,7 @@ static int rs_get_tbl_info_from_mcs(struct iwl_rate *mcs_rate, int phymode,
tbl->lq_type = LQ_NONE;
else {
- if ((phymode == MODE_ATHEROS_TURBO) ||
- (phymode == MODE_IEEE80211A))
+ if (phymode == MODE_IEEE80211A)
tbl->lq_type = LQ_A;
else
tbl->lq_type = LQ_G;
@@ -381,7 +441,9 @@ static int rs_get_tbl_info_from_mcs(struct iwl_rate *mcs_rate, int phymode,
}
*rate_idx = index;
- } else if (mcs_rate->s.rate <= IWL_RATE_SISO_60M_PLCP) {
+ /* HT rate format, SISO (might be 20 MHz legacy or 40 MHz fat width) */
+ } else if (iwl4965_rate_get_rate(mcs_rate->rate_n_flags)
+ <= IWL_RATE_SISO_60M_PLCP) {
tbl->lq_type = LQ_SISO;
ant_msk = (mcs_rate->rate_n_flags & RATE_MCS_ANT_AB_MSK);
@@ -404,6 +466,8 @@ static int rs_get_tbl_info_from_mcs(struct iwl_rate *mcs_rate, int phymode,
tbl->is_dup = 1;
*rate_idx = index;
+
+ /* HT rate format, MIMO (might be 20 MHz legacy or 40 MHz fat width) */
} else {
tbl->lq_type = LQ_MIMO;
if (mcs_rate->rate_n_flags & RATE_MCS_SGI_MSK)
@@ -420,8 +484,8 @@ static int rs_get_tbl_info_from_mcs(struct iwl_rate *mcs_rate, int phymode,
return 0;
}
-static inline void rs_toggle_antenna(struct iwl_rate *new_rate,
- struct iwl_scale_tbl_info *tbl)
+static inline void rs_toggle_antenna(struct iwl4965_rate *new_rate,
+ struct iwl4965_scale_tbl_info *tbl)
{
if (tbl->antenna_type == ANT_AUX) {
tbl->antenna_type = ANT_MAIN;
@@ -434,18 +498,15 @@ static inline void rs_toggle_antenna(struct iwl_rate *new_rate,
}
}
-static inline s8 rs_use_green(struct iwl_priv *priv)
+static inline u8 rs_use_green(struct iwl4965_priv *priv,
+ struct ieee80211_conf *conf)
{
- s8 rc = 0;
-#ifdef CONFIG_IWLWIFI_HT
- if (!priv->is_ht_enabled || !priv->current_assoc_ht.is_ht)
- return 0;
-
- if ((priv->current_assoc_ht.is_green_field) &&
- !(priv->current_assoc_ht.operating_mode & 0x4))
- rc = 1;
-#endif /*CONFIG_IWLWIFI_HT */
- return rc;
+#ifdef CONFIG_IWL4965_HT
+ return ((conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) &&
+ priv->current_ht_config.is_green_field &&
+ !priv->current_ht_config.non_GF_STA_present);
+#endif /* CONFIG_IWL4965_HT */
+ return 0;
}
/**
@@ -455,10 +516,10 @@ static inline s8 rs_use_green(struct iwl_priv *priv)
* basic available rates.
*
*/
-static void rs_get_supported_rates(struct iwl_rate_scale_priv *lq_data,
- struct ieee80211_hdr *hdr,
- enum iwl_table_type rate_type,
- u16 * data_rate)
+static void rs_get_supported_rates(struct iwl4965_rate_scale_priv *lq_data,
+ struct ieee80211_hdr *hdr,
+ enum iwl4965_table_type rate_type,
+ u16 *data_rate)
{
if (is_legacy(rate_type))
*data_rate = lq_data->active_rate;
@@ -469,8 +530,8 @@ static void rs_get_supported_rates(struct iwl_rate_scale_priv *lq_data,
*data_rate = lq_data->active_mimo_rate;
}
- if (hdr && (is_multicast_ether_addr(hdr->addr1))
- && (lq_data->active_rate_basic))
+ if (hdr && is_multicast_ether_addr(hdr->addr1) &&
+ lq_data->active_rate_basic)
*data_rate = lq_data->active_rate_basic;
}
@@ -479,7 +540,7 @@ static u16 rs_get_adjacent_rate(u8 index, u16 rate_mask, int rate_type)
u8 high = IWL_RATE_INVALID;
u8 low = IWL_RATE_INVALID;
- /* 802.11A or ht walks to the next literal adjascent rate in
+ /* 802.11A or ht walks to the next literal adjacent rate in
* the rate table */
if (is_a_band(rate_type) || !is_legacy(rate_type)) {
int i;
@@ -508,7 +569,7 @@ static u16 rs_get_adjacent_rate(u8 index, u16 rate_mask, int rate_type)
low = index;
while (low != IWL_RATE_INVALID) {
- low = iwl_rates[low].prev_rs;
+ low = iwl4965_rates[low].prev_rs;
if (low == IWL_RATE_INVALID)
break;
if (rate_mask & (1 << low))
@@ -518,7 +579,7 @@ static u16 rs_get_adjacent_rate(u8 index, u16 rate_mask, int rate_type)
high = index;
while (high != IWL_RATE_INVALID) {
- high = iwl_rates[high].next_rs;
+ high = iwl4965_rates[high].next_rs;
if (high == IWL_RATE_INVALID)
break;
if (rate_mask & (1 << high))
@@ -529,54 +590,65 @@ static u16 rs_get_adjacent_rate(u8 index, u16 rate_mask, int rate_type)
return (high << 8) | low;
}
-static int rs_get_lower_rate(struct iwl_rate_scale_priv *lq_data,
- struct iwl_scale_tbl_info *tbl, u8 scale_index,
- u8 ht_possible, struct iwl_rate *msc_rate)
+static void rs_get_lower_rate(struct iwl4965_rate_scale_priv *lq_data,
+ struct iwl4965_scale_tbl_info *tbl, u8 scale_index,
+ u8 ht_possible, struct iwl4965_rate *mcs_rate)
{
- u8 is_green = lq_data->is_green;
- s32 low, high;
+ s32 low;
u16 rate_mask;
u16 high_low;
+ u8 switch_to_legacy = 0;
+ u8 is_green = lq_data->is_green;
- if (is_legacy(tbl->lq_type) || (ht_possible && scale_index)) {
- rs_get_supported_rates(lq_data, NULL, tbl->lq_type,
- &rate_mask);
+ /* check if we need to switch from HT to legacy rates.
+ * assumption is that mandatory rates (1Mbps or 6Mbps)
+ * are always supported (spec demand) */
+ if (!is_legacy(tbl->lq_type) && (!ht_possible || !scale_index)) {
+ switch_to_legacy = 1;
+ scale_index = rs_ht_to_legacy[scale_index];
+ if (lq_data->phymode == MODE_IEEE80211A)
+ tbl->lq_type = LQ_A;
+ else
+ tbl->lq_type = LQ_G;
- high_low = rs_get_adjacent_rate(scale_index,
- rate_mask, tbl->lq_type);
- low = high_low & 0xff;
- high = (high_low >> 8) & 0xff;
+ if ((tbl->antenna_type == ANT_BOTH) ||
+ (tbl->antenna_type == ANT_NONE))
+ tbl->antenna_type = ANT_MAIN;
- if (low == IWL_RATE_INVALID) {
- if (is_legacy(tbl->lq_type)) {
- low = scale_index;
- rs_mcs_from_tbl(msc_rate, tbl,
- low, is_green);
- return 0;
- }
- } else {
- rs_mcs_from_tbl(msc_rate, tbl, low, is_green);
- return 0;
- }
+ tbl->is_fat = 0;
+ tbl->is_SGI = 0;
}
- low = rs_ht_to_legacy[scale_index];
- if ((lq_data->phymode == MODE_IEEE80211A) ||
- (lq_data->phymode == MODE_ATHEROS_TURBO))
- tbl->lq_type = LQ_A;
- else
- tbl->lq_type = LQ_G;
+ rs_get_supported_rates(lq_data, NULL, tbl->lq_type, &rate_mask);
- if ((tbl->antenna_type == ANT_BOTH) || (tbl->antenna_type == ANT_NONE))
- tbl->antenna_type = ANT_MAIN;
+ /* Mask with station rate restriction */
+ if (is_legacy(tbl->lq_type)) {
+ /* supp_rates has no CCK bits in A mode */
+ if (lq_data->phymode == (u8) MODE_IEEE80211A)
+ rate_mask = (u16)(rate_mask &
+ (lq_data->supp_rates << IWL_FIRST_OFDM_RATE));
+ else
+ rate_mask = (u16)(rate_mask & lq_data->supp_rates);
+ }
- tbl->is_fat = 0;
- tbl->is_SGI = 0;
+ /* If we switched from HT to legacy, check current rate */
+ if (switch_to_legacy && (rate_mask & (1 << scale_index))) {
+ rs_mcs_from_tbl(mcs_rate, tbl, scale_index, is_green);
+ return;
+ }
- rs_mcs_from_tbl(msc_rate, tbl, low, is_green);
- return 0;
+ high_low = rs_get_adjacent_rate(scale_index, rate_mask, tbl->lq_type);
+ low = high_low & 0xff;
+
+ if (low != IWL_RATE_INVALID)
+ rs_mcs_from_tbl(mcs_rate, tbl, low, is_green);
+ else
+ rs_mcs_from_tbl(mcs_rate, tbl, scale_index, is_green);
}
+/*
+ * mac80211 sends us Tx status
+ */
static void rs_tx_status(void *priv_rate,
struct net_device *dev,
struct sk_buff *skb,
@@ -585,23 +657,22 @@ static void rs_tx_status(void *priv_rate,
int status;
u8 retries;
int rs_index, index = 0;
- struct iwl_rate_scale_priv *lq;
- struct iwl_link_quality_cmd *table;
+ struct iwl4965_rate_scale_priv *lq;
+ struct iwl4965_link_quality_cmd *table;
struct sta_info *sta;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)priv_rate;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct iwl_rate_scale_data *window = NULL;
- struct iwl_rate_scale_data *search_win = NULL;
- struct iwl_rate tx_mcs;
- struct iwl_scale_tbl_info tbl_type;
- struct iwl_scale_tbl_info *curr_tbl, *search_tbl;
+ struct iwl4965_rate_scale_data *window = NULL;
+ struct iwl4965_rate_scale_data *search_win = NULL;
+ struct iwl4965_rate tx_mcs;
+ struct iwl4965_scale_tbl_info tbl_type;
+ struct iwl4965_scale_tbl_info *curr_tbl, *search_tbl;
u8 active_index = 0;
u16 fc = le16_to_cpu(hdr->frame_control);
s32 tpt = 0;
- IWL_DEBUG_RATE("getting frame ack response, update rate "
- "scale window\n");
+ IWL_DEBUG_RATE_LIMIT("get frame ack response, update rate scale window\n");
if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1))
return;
@@ -620,20 +691,30 @@ static void rs_tx_status(void *priv_rate,
return;
}
- lq = (struct iwl_rate_scale_priv *)sta->rate_ctrl_priv;
+ lq = (struct iwl4965_rate_scale_priv *)sta->rate_ctrl_priv;
+
+ if (!priv->lq_mngr.lq_ready)
+ return;
+
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) && !lq->ibss_sta_added)
+ return;
+
table = &lq->lq;
active_index = lq->active_tbl;
+ /* Get mac80211 antenna info */
lq->antenna = (lq->valid_antenna & local->hw.conf.antenna_sel_tx);
if (!lq->antenna)
lq->antenna = lq->valid_antenna;
+ /* Ignore mac80211 antenna info for now */
lq->antenna = lq->valid_antenna;
+
curr_tbl = &(lq->lq_info[active_index]);
search_tbl = &(lq->lq_info[(1 - active_index)]);
- window = (struct iwl_rate_scale_data *)
+ window = (struct iwl4965_rate_scale_data *)
&(curr_tbl->win[0]);
- search_win = (struct iwl_rate_scale_data *)
+ search_win = (struct iwl4965_rate_scale_data *)
&(search_tbl->win[0]);
tx_mcs.rate_n_flags = tx_resp->control.tx_rate;
@@ -647,21 +728,35 @@ static void rs_tx_status(void *priv_rate,
return;
}
+ /*
+ * Ignore this Tx frame response if its initial rate doesn't match
+ * that of latest Link Quality command. There may be stragglers
+ * from a previous Link Quality command, but we're no longer interested
+ * in those; they're either from the "active" mode while we're trying
+ * to check "search" mode, or a prior "search" mode after we've moved
+ * to a new "search" mode (which might become the new "active" mode).
+ */
if (retries &&
- (tx_mcs.rate_n_flags != table->rate_scale_table[0].rate_n_flags)) {
+ (tx_mcs.rate_n_flags !=
+ le32_to_cpu(table->rs_table[0].rate_n_flags))) {
IWL_DEBUG_RATE("initial rate does not match 0x%x 0x%x\n",
tx_mcs.rate_n_flags,
- table->rate_scale_table[0].rate_n_flags);
+ le32_to_cpu(table->rs_table[0].rate_n_flags));
sta_info_put(sta);
return;
}
+ /* Update frame history window with "failure" for each Tx retry. */
while (retries) {
+ /* Look up the rate and other info used for each tx attempt.
+ * Each tx attempt steps one entry deeper in the rate table. */
tx_mcs.rate_n_flags =
- table->rate_scale_table[index].rate_n_flags;
+ le32_to_cpu(table->rs_table[index].rate_n_flags);
rs_get_tbl_info_from_mcs(&tx_mcs, priv->phymode,
&tbl_type, &rs_index);
+ /* If type matches "search" table,
+ * add failure to "search" history */
if ((tbl_type.lq_type == search_tbl->lq_type) &&
(tbl_type.antenna_type == search_tbl->antenna_type) &&
(tbl_type.is_SGI == search_tbl->is_SGI)) {
@@ -669,8 +764,10 @@ static void rs_tx_status(void *priv_rate,
tpt = search_tbl->expected_tpt[rs_index];
else
tpt = 0;
- rs_collect_tx_data(search_win,
- rs_index, tpt, 0);
+ rs_collect_tx_data(search_win, rs_index, tpt, 0);
+
+ /* Else if type matches "current/active" table,
+ * add failure to "current/active" history */
} else if ((tbl_type.lq_type == curr_tbl->lq_type) &&
(tbl_type.antenna_type == curr_tbl->antenna_type) &&
(tbl_type.is_SGI == curr_tbl->is_SGI)) {
@@ -680,6 +777,9 @@ static void rs_tx_status(void *priv_rate,
tpt = 0;
rs_collect_tx_data(window, rs_index, tpt, 0);
}
+
+ /* If not searching for a new mode, increment failed counter
+ * ... this helps determine when to start searching again */
if (lq->stay_in_tbl)
lq->total_failed++;
--retries;
@@ -687,20 +787,28 @@ static void rs_tx_status(void *priv_rate,
}
- if (!tx_resp->retry_count )
+ /*
+ * Find (by rate) the history window to update with final Tx attempt;
+ * if Tx was successful first try, use original rate,
+ * else look up the rate that was, finally, successful.
+ */
+ if (!tx_resp->retry_count)
tx_mcs.rate_n_flags = tx_resp->control.tx_rate;
else
tx_mcs.rate_n_flags =
- table->rate_scale_table[index].rate_n_flags;
+ le32_to_cpu(table->rs_table[index].rate_n_flags);
rs_get_tbl_info_from_mcs(&tx_mcs, priv->phymode,
&tbl_type, &rs_index);
+ /* Update frame history window with "success" if Tx got ACKed ... */
if (tx_resp->flags & IEEE80211_TX_STATUS_ACK)
status = 1;
else
status = 0;
+ /* If type matches "search" table,
+ * add final tx status to "search" history */
if ((tbl_type.lq_type == search_tbl->lq_type) &&
(tbl_type.antenna_type == search_tbl->antenna_type) &&
(tbl_type.is_SGI == search_tbl->is_SGI)) {
@@ -710,6 +818,9 @@ static void rs_tx_status(void *priv_rate,
tpt = 0;
rs_collect_tx_data(search_win,
rs_index, tpt, status);
+
+ /* Else if type matches "current/active" table,
+ * add final tx status to "current/active" history */
} else if ((tbl_type.lq_type == curr_tbl->lq_type) &&
(tbl_type.antenna_type == curr_tbl->antenna_type) &&
(tbl_type.is_SGI == curr_tbl->is_SGI)) {
@@ -720,6 +831,8 @@ static void rs_tx_status(void *priv_rate,
rs_collect_tx_data(window, rs_index, tpt, status);
}
+ /* If not searching for new mode, increment success/failed counter
+ * ... these help determine when to start searching again */
if (lq->stay_in_tbl) {
if (status)
lq->total_success++;
@@ -727,65 +840,53 @@ static void rs_tx_status(void *priv_rate,
lq->total_failed++;
}
+ /* See if there's a better rate or modulation mode to try. */
rs_rate_scale_perform(priv, dev, hdr, sta);
sta_info_put(sta);
return;
}
static u8 rs_is_ant_connected(u8 valid_antenna,
- enum iwl_antenna_type antenna_type)
+ enum iwl4965_antenna_type antenna_type)
{
if (antenna_type == ANT_AUX)
return ((valid_antenna & 0x2) ? 1:0);
else if (antenna_type == ANT_MAIN)
return ((valid_antenna & 0x1) ? 1:0);
- else if (antenna_type == ANT_BOTH) {
- if ((valid_antenna & 0x3) == 0x3)
- return 1;
- else
- return 0;
- }
+ else if (antenna_type == ANT_BOTH)
+ return ((valid_antenna & 0x3) == 0x3);
return 1;
}
static u8 rs_is_other_ant_connected(u8 valid_antenna,
- enum iwl_antenna_type antenna_type)
+ enum iwl4965_antenna_type antenna_type)
{
if (antenna_type == ANT_AUX)
- return (rs_is_ant_connected(valid_antenna, ANT_MAIN));
+ return rs_is_ant_connected(valid_antenna, ANT_MAIN);
else
- return (rs_is_ant_connected(valid_antenna, ANT_AUX));
+ return rs_is_ant_connected(valid_antenna, ANT_AUX);
return 0;
}
-#define IWL_LEGACY_SWITCH_ANTENNA 0
-#define IWL_LECACY_SWITCH_SISO 1
-#define IWL_LEGACY_SWITCH_MIMO 2
-
-#define IWL_RS_GOOD_RATIO 12800
-
-#define IWL_ACTION_LIMIT 3
-#define IWL_LEGACY_FAILURE_LIMIT 160
-#define IWL_LEGACY_SUCCESS_LIMIT 480
-#define IWL_LEGACY_TABLE_COUNT 160
-
-#define IWL_NONE_LEGACY_FAILURE_LIMIT 400
-#define IWL_NONE_LEGACY_SUCCESS_LIMIT 4500
-#define IWL_NONE_LEGACY_TABLE_COUNT 1500
-
-#define IWL_RATE_SCALE_SWITCH (10880)
-
+/*
+ * Begin a period of staying with a selected modulation mode.
+ * Set "stay_in_tbl" flag to prevent any mode switches.
+ * Set frame tx success limits according to legacy vs. high-throughput,
+ * and reset overall (spanning all rates) tx success history statistics.
+ * These control how long we stay using same modulation mode before
+ * searching for a new mode.
+ */
static void rs_set_stay_in_table(u8 is_legacy,
- struct iwl_rate_scale_priv *lq_data)
+ struct iwl4965_rate_scale_priv *lq_data)
{
IWL_DEBUG_HT("we are staying in the same table\n");
- lq_data->stay_in_tbl = 1;
+ lq_data->stay_in_tbl = 1; /* only place this gets set */
if (is_legacy) {
lq_data->table_count_limit = IWL_LEGACY_TABLE_COUNT;
lq_data->max_failure_limit = IWL_LEGACY_FAILURE_LIMIT;
- lq_data->max_success_limit = IWL_LEGACY_TABLE_COUNT;
+ lq_data->max_success_limit = IWL_LEGACY_SUCCESS_LIMIT;
} else {
lq_data->table_count_limit = IWL_NONE_LEGACY_TABLE_COUNT;
lq_data->max_failure_limit = IWL_NONE_LEGACY_FAILURE_LIMIT;
@@ -796,8 +897,11 @@ static void rs_set_stay_in_table(u8 is_legacy,
lq_data->total_success = 0;
}
-static void rs_get_expected_tpt_table(struct iwl_rate_scale_priv *lq_data,
- struct iwl_scale_tbl_info *tbl)
+/*
+ * Find correct throughput table for given mode of modulation
+ */
+static void rs_get_expected_tpt_table(struct iwl4965_rate_scale_priv *lq_data,
+ struct iwl4965_scale_tbl_info *tbl)
{
if (is_legacy(tbl->lq_type)) {
if (!is_a_band(tbl->lq_type))
@@ -829,72 +933,130 @@ static void rs_get_expected_tpt_table(struct iwl_rate_scale_priv *lq_data,
tbl->expected_tpt = expected_tpt_G;
}
-#ifdef CONFIG_IWLWIFI_HT
-static s32 rs_get_best_rate(struct iwl_priv *priv,
- struct iwl_rate_scale_priv *lq_data,
- struct iwl_scale_tbl_info *tbl,
+#ifdef CONFIG_IWL4965_HT
+/*
+ * Find starting rate for new "search" high-throughput mode of modulation.
+ * Goal is to find lowest expected rate (under perfect conditions) that is
+ * above the current measured throughput of "active" mode, to give new mode
+ * a fair chance to prove itself without too many challenges.
+ *
+ * This gets called when transitioning to more aggressive modulation
+ * (i.e. legacy to SISO or MIMO, or SISO to MIMO), as well as less aggressive
+ * (i.e. MIMO to SISO). When moving to MIMO, bit rate will typically need
+ * to decrease to match "active" throughput. When moving from MIMO to SISO,
+ * bit rate will typically need to increase, but not if performance was bad.
+ */
+static s32 rs_get_best_rate(struct iwl4965_priv *priv,
+ struct iwl4965_rate_scale_priv *lq_data,
+ struct iwl4965_scale_tbl_info *tbl, /* "search" */
u16 rate_mask, s8 index, s8 rate)
{
- struct iwl_scale_tbl_info *active_tbl =
+ /* "active" values */
+ struct iwl4965_scale_tbl_info *active_tbl =
&(lq_data->lq_info[lq_data->active_tbl]);
- s32 new_rate, high, low;
s32 active_sr = active_tbl->win[index].success_ratio;
- s32 *tpt_tbl = tbl->expected_tpt;
s32 active_tpt = active_tbl->expected_tpt[index];
+
+ /* expected "search" throughput */
+ s32 *tpt_tbl = tbl->expected_tpt;
+
+ s32 new_rate, high, low, start_hi;
u16 high_low;
- new_rate = high = low = IWL_RATE_INVALID;
+ new_rate = high = low = start_hi = IWL_RATE_INVALID;
- for (;;) {
- high_low = rs_get_adjacent_rate(rate,
- rate_mask, tbl->lq_type);
+ for (; ;) {
+ high_low = rs_get_adjacent_rate(rate, rate_mask, tbl->lq_type);
low = high_low & 0xff;
high = (high_low >> 8) & 0xff;
+ /*
+ * Lower the "search" bit rate, to give new "search" mode
+ * approximately the same throughput as "active" if:
+ *
+ * 1) "Active" mode has been working modestly well (but not
+ * great), and expected "search" throughput (under perfect
+ * conditions) at candidate rate is above the actual
+ * measured "active" throughput (but less than expected
+ * "active" throughput under perfect conditions).
+ * OR
+ * 2) "Active" mode has been working perfectly or very well
+ * and expected "search" throughput (under perfect
+ * conditions) at candidate rate is above expected
+ * "active" throughput (under perfect conditions).
+ */
if ((((100 * tpt_tbl[rate]) > lq_data->last_tpt) &&
((active_sr > IWL_RATE_DECREASE_TH) &&
(active_sr <= IWL_RATE_HIGH_TH) &&
(tpt_tbl[rate] <= active_tpt))) ||
((active_sr >= IWL_RATE_SCALE_SWITCH) &&
(tpt_tbl[rate] > active_tpt))) {
+
+ /* (2nd or later pass)
+ * If we've already tried to raise the rate, and are
+ * now trying to lower it, use the higher rate. */
+ if (start_hi != IWL_RATE_INVALID) {
+ new_rate = start_hi;
+ break;
+ }
+
new_rate = rate;
+
+ /* Loop again with lower rate */
if (low != IWL_RATE_INVALID)
rate = low;
+
+ /* Lower rate not available, use the original */
else
break;
+
+ /* Else try to raise the "search" rate to match "active" */
} else {
+ /* (2nd or later pass)
+ * If we've already tried to lower the rate, and are
+ * now trying to raise it, use the lower rate. */
if (new_rate != IWL_RATE_INVALID)
break;
- else if (high != IWL_RATE_INVALID)
+
+ /* Loop again with higher rate */
+ else if (high != IWL_RATE_INVALID) {
+ start_hi = high;
rate = high;
- else
+
+ /* Higher rate not available, use the original */
+ } else {
+ new_rate = rate;
break;
+ }
}
}
- if (new_rate == IWL_RATE_INVALID)
- new_rate = rate;
return new_rate;
}
-#endif /* CONFIG_IWLWIFI_HT */
+#endif /* CONFIG_IWL4965_HT */
static inline u8 rs_is_both_ant_supp(u8 valid_antenna)
{
return (rs_is_ant_connected(valid_antenna, ANT_BOTH));
}
-static int rs_switch_to_mimo(struct iwl_priv *priv,
- struct iwl_rate_scale_priv *lq_data,
- struct iwl_scale_tbl_info *tbl, int index)
+/*
+ * Set up search table for MIMO
+ */
+static int rs_switch_to_mimo(struct iwl4965_priv *priv,
+ struct iwl4965_rate_scale_priv *lq_data,
+ struct ieee80211_conf *conf,
+ struct sta_info *sta,
+ struct iwl4965_scale_tbl_info *tbl, int index)
{
- int rc = -1;
-#ifdef CONFIG_IWLWIFI_HT
+#ifdef CONFIG_IWL4965_HT
u16 rate_mask;
s32 rate;
s8 is_green = lq_data->is_green;
- if (!priv->is_ht_enabled || !priv->current_assoc_ht.is_ht)
+ if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) ||
+ !sta->ht_info.ht_supported)
return -1;
IWL_DEBUG_HT("LQ: try to switch to MIMO\n");
@@ -902,36 +1064,34 @@ static int rs_switch_to_mimo(struct iwl_priv *priv,
rs_get_supported_rates(lq_data, NULL, tbl->lq_type,
&rate_mask);
- if (priv->current_assoc_ht.tx_mimo_ps_mode == IWL_MIMO_PS_STATIC)
+ if (priv->current_ht_config.tx_mimo_ps_mode == IWL_MIMO_PS_STATIC)
return -1;
+ /* Need both Tx chains/antennas to support MIMO */
if (!rs_is_both_ant_supp(lq_data->antenna))
return -1;
- rc = 0;
tbl->is_dup = lq_data->is_dup;
tbl->action = 0;
- if (priv->current_channel_width == IWL_CHANNEL_WIDTH_40MHZ)
+ if (priv->current_ht_config.supported_chan_width
+ == IWL_CHANNEL_WIDTH_40MHZ)
tbl->is_fat = 1;
else
tbl->is_fat = 0;
if (tbl->is_fat) {
- if (priv->current_assoc_ht.sgf & HT_SHORT_GI_40MHZ_ONLY)
+ if (priv->current_ht_config.sgf & HT_SHORT_GI_40MHZ_ONLY)
tbl->is_SGI = 1;
else
tbl->is_SGI = 0;
- } else if (priv->current_assoc_ht.sgf & HT_SHORT_GI_20MHZ_ONLY)
+ } else if (priv->current_ht_config.sgf & HT_SHORT_GI_20MHZ_ONLY)
tbl->is_SGI = 1;
else
tbl->is_SGI = 0;
rs_get_expected_tpt_table(lq_data, tbl);
- rate = rs_get_best_rate(priv, lq_data, tbl, rate_mask, index, 4);
-
- if ((rate == IWL_RATE_INVALID) || (rate == 1))
- rate = IWL_RATE_48M_INDEX;
+ rate = rs_get_best_rate(priv, lq_data, tbl, rate_mask, index, index);
IWL_DEBUG_HT("LQ: MIMO best rate %d mask %X\n", rate, rate_mask);
if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask))
@@ -940,43 +1100,49 @@ static int rs_switch_to_mimo(struct iwl_priv *priv,
IWL_DEBUG_HT("LQ: Switch to new mcs %X index is green %X\n",
tbl->current_rate.rate_n_flags, is_green);
-
-#endif /*CONFIG_IWLWIFI_HT */
- return rc;
+ return 0;
+#else
+ return -1;
+#endif /*CONFIG_IWL4965_HT */
}
-static int rs_switch_to_siso(struct iwl_priv *priv,
- struct iwl_rate_scale_priv *lq_data,
- struct iwl_scale_tbl_info *tbl, int index)
+/*
+ * Set up search table for SISO
+ */
+static int rs_switch_to_siso(struct iwl4965_priv *priv,
+ struct iwl4965_rate_scale_priv *lq_data,
+ struct ieee80211_conf *conf,
+ struct sta_info *sta,
+ struct iwl4965_scale_tbl_info *tbl, int index)
{
- int rc = -1;
-#ifdef CONFIG_IWLWIFI_HT
+#ifdef CONFIG_IWL4965_HT
u16 rate_mask;
u8 is_green = lq_data->is_green;
s32 rate;
IWL_DEBUG_HT("LQ: try to switch to SISO\n");
- if (!priv->is_ht_enabled || !priv->current_assoc_ht.is_ht)
+ if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) ||
+ !sta->ht_info.ht_supported)
return -1;
- rc = 0;
tbl->is_dup = lq_data->is_dup;
tbl->lq_type = LQ_SISO;
tbl->action = 0;
rs_get_supported_rates(lq_data, NULL, tbl->lq_type,
&rate_mask);
- if (priv->current_channel_width == IWL_CHANNEL_WIDTH_40MHZ)
+ if (priv->current_ht_config.supported_chan_width
+ == IWL_CHANNEL_WIDTH_40MHZ)
tbl->is_fat = 1;
else
tbl->is_fat = 0;
if (tbl->is_fat) {
- if (priv->current_assoc_ht.sgf & HT_SHORT_GI_40MHZ_ONLY)
+ if (priv->current_ht_config.sgf & HT_SHORT_GI_40MHZ_ONLY)
tbl->is_SGI = 1;
else
tbl->is_SGI = 0;
- } else if (priv->current_assoc_ht.sgf & HT_SHORT_GI_20MHZ_ONLY)
+ } else if (priv->current_ht_config.sgf & HT_SHORT_GI_20MHZ_ONLY)
tbl->is_SGI = 1;
else
tbl->is_SGI = 0;
@@ -985,9 +1151,8 @@ static int rs_switch_to_siso(struct iwl_priv *priv,
tbl->is_SGI = 0;
rs_get_expected_tpt_table(lq_data, tbl);
- rate = rs_get_best_rate(priv, lq_data, tbl, rate_mask, index, 4);
- if ((rate == IWL_RATE_INVALID) || (rate == 1))
- rate = IWL_RATE_48M_INDEX;
+ rate = rs_get_best_rate(priv, lq_data, tbl, rate_mask, index, index);
+
IWL_DEBUG_HT("LQ: get best rate %d mask %X\n", rate, rate_mask);
if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
IWL_DEBUG_HT("can not switch with index %d rate mask %x\n",
@@ -997,37 +1162,50 @@ static int rs_switch_to_siso(struct iwl_priv *priv,
rs_mcs_from_tbl(&tbl->current_rate, tbl, rate, is_green);
IWL_DEBUG_HT("LQ: Switch to new mcs %X index is green %X\n",
tbl->current_rate.rate_n_flags, is_green);
+ return 0;
+#else
+ return -1;
-#endif /*CONFIG_IWLWIFI_HT */
- return rc;
+#endif /*CONFIG_IWL4965_HT */
}
-static int rs_move_legacy_other(struct iwl_priv *priv,
- struct iwl_rate_scale_priv *lq_data,
+/*
+ * Try to switch to new modulation mode from legacy
+ */
+static int rs_move_legacy_other(struct iwl4965_priv *priv,
+ struct iwl4965_rate_scale_priv *lq_data,
+ struct ieee80211_conf *conf,
+ struct sta_info *sta,
int index)
{
- int rc = 0;
- struct iwl_scale_tbl_info *tbl =
+ int ret = 0;
+ struct iwl4965_scale_tbl_info *tbl =
&(lq_data->lq_info[lq_data->active_tbl]);
- struct iwl_scale_tbl_info *search_tbl =
+ struct iwl4965_scale_tbl_info *search_tbl =
&(lq_data->lq_info[(1 - lq_data->active_tbl)]);
- struct iwl_rate_scale_data *window = &(tbl->win[index]);
- u32 sz = (sizeof(struct iwl_scale_tbl_info) -
- (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
+ struct iwl4965_rate_scale_data *window = &(tbl->win[index]);
+ u32 sz = (sizeof(struct iwl4965_scale_tbl_info) -
+ (sizeof(struct iwl4965_rate_scale_data) * IWL_RATE_COUNT));
u8 start_action = tbl->action;
- for (;;) {
+
+ for (; ;) {
switch (tbl->action) {
case IWL_LEGACY_SWITCH_ANTENNA:
IWL_DEBUG_HT("LQ Legacy switch Antenna\n");
search_tbl->lq_type = LQ_NONE;
lq_data->action_counter++;
+
+ /* Don't change antenna if success has been great */
if (window->success_ratio >= IWL_RS_GOOD_RATIO)
break;
+
+ /* Don't change antenna if other one is not connected */
if (!rs_is_other_ant_connected(lq_data->antenna,
tbl->antenna_type))
break;
+ /* Set up search table to try other antenna */
memcpy(search_tbl, tbl, sz);
rs_toggle_antenna(&(search_tbl->current_rate),
@@ -1036,37 +1214,39 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
lq_data->search_better_tbl = 1;
goto out;
- case IWL_LECACY_SWITCH_SISO:
+ case IWL_LEGACY_SWITCH_SISO:
IWL_DEBUG_HT("LQ: Legacy switch to SISO\n");
+
+ /* Set up search table to try SISO */
memcpy(search_tbl, tbl, sz);
search_tbl->lq_type = LQ_SISO;
search_tbl->is_SGI = 0;
search_tbl->is_fat = 0;
- rc = rs_switch_to_siso(priv, lq_data,
+ ret = rs_switch_to_siso(priv, lq_data, conf, sta,
search_tbl, index);
- if (!rc) {
+ if (!ret) {
lq_data->search_better_tbl = 1;
lq_data->action_counter = 0;
- }
- if (!rc)
goto out;
+ }
break;
case IWL_LEGACY_SWITCH_MIMO:
IWL_DEBUG_HT("LQ: Legacy switch MIMO\n");
+
+ /* Set up search table to try MIMO */
memcpy(search_tbl, tbl, sz);
search_tbl->lq_type = LQ_MIMO;
search_tbl->is_SGI = 0;
search_tbl->is_fat = 0;
search_tbl->antenna_type = ANT_BOTH;
- rc = rs_switch_to_mimo(priv, lq_data,
+ ret = rs_switch_to_mimo(priv, lq_data, conf, sta,
search_tbl, index);
- if (!rc) {
+ if (!ret) {
lq_data->search_better_tbl = 1;
lq_data->action_counter = 0;
- }
- if (!rc)
goto out;
+ }
break;
}
tbl->action++;
@@ -1087,23 +1267,24 @@ static int rs_move_legacy_other(struct iwl_priv *priv,
}
-#define IWL_SISO_SWITCH_ANTENNA 0
-#define IWL_SISO_SWITCH_MIMO 1
-#define IWL_SISO_SWITCH_GI 2
-
-static int rs_move_siso_to_other(struct iwl_priv *priv,
- struct iwl_rate_scale_priv *lq_data,
+/*
+ * Try to switch to new modulation mode from SISO
+ */
+static int rs_move_siso_to_other(struct iwl4965_priv *priv,
+ struct iwl4965_rate_scale_priv *lq_data,
+ struct ieee80211_conf *conf,
+ struct sta_info *sta,
int index)
{
- int rc = -1;
+ int ret;
u8 is_green = lq_data->is_green;
- struct iwl_scale_tbl_info *tbl =
+ struct iwl4965_scale_tbl_info *tbl =
&(lq_data->lq_info[lq_data->active_tbl]);
- struct iwl_scale_tbl_info *search_tbl =
+ struct iwl4965_scale_tbl_info *search_tbl =
&(lq_data->lq_info[(1 - lq_data->active_tbl)]);
- struct iwl_rate_scale_data *window = &(tbl->win[index]);
- u32 sz = (sizeof(struct iwl_scale_tbl_info) -
- (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
+ struct iwl4965_rate_scale_data *window = &(tbl->win[index]);
+ u32 sz = (sizeof(struct iwl4965_scale_tbl_info) -
+ (sizeof(struct iwl4965_rate_scale_data) * IWL_RATE_COUNT));
u8 start_action = tbl->action;
for (;;) {
@@ -1133,13 +1314,12 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
search_tbl->is_SGI = 0;
search_tbl->is_fat = 0;
search_tbl->antenna_type = ANT_BOTH;
- rc = rs_switch_to_mimo(priv, lq_data,
+ ret = rs_switch_to_mimo(priv, lq_data, conf, sta,
search_tbl, index);
- if (!rc)
+ if (!ret) {
lq_data->search_better_tbl = 1;
-
- if (!rc)
goto out;
+ }
break;
case IWL_SISO_SWITCH_GI:
IWL_DEBUG_HT("LQ: SISO SWITCH TO GI\n");
@@ -1151,8 +1331,17 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
search_tbl->is_SGI = 1;
else
break;
- rs_get_expected_tpt_table(lq_data, search_tbl);
lq_data->search_better_tbl = 1;
+ if ((tbl->lq_type == LQ_SISO) &&
+ (tbl->is_SGI)) {
+ s32 tpt = lq_data->last_tpt / 100;
+ if (((!tbl->is_fat) &&
+ (tpt >= expected_tpt_siso20MHz[index])) ||
+ ((tbl->is_fat) &&
+ (tpt >= expected_tpt_siso40MHz[index])))
+ lq_data->search_better_tbl = 0;
+ }
+ rs_get_expected_tpt_table(lq_data, search_tbl);
rs_mcs_from_tbl(&search_tbl->current_rate,
search_tbl, index, is_green);
goto out;
@@ -1173,22 +1362,23 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
return 0;
}
-#define IWL_MIMO_SWITCH_ANTENNA_A 0
-#define IWL_MIMO_SWITCH_ANTENNA_B 1
-#define IWL_MIMO_SWITCH_GI 2
-
-static int rs_move_mimo_to_other(struct iwl_priv *priv,
- struct iwl_rate_scale_priv *lq_data,
+/*
+ * Try to switch to new modulation mode from MIMO
+ */
+static int rs_move_mimo_to_other(struct iwl4965_priv *priv,
+ struct iwl4965_rate_scale_priv *lq_data,
+ struct ieee80211_conf *conf,
+ struct sta_info *sta,
int index)
{
- int rc = -1;
+ int ret;
s8 is_green = lq_data->is_green;
- struct iwl_scale_tbl_info *tbl =
+ struct iwl4965_scale_tbl_info *tbl =
&(lq_data->lq_info[lq_data->active_tbl]);
- struct iwl_scale_tbl_info *search_tbl =
+ struct iwl4965_scale_tbl_info *search_tbl =
&(lq_data->lq_info[(1 - lq_data->active_tbl)]);
- u32 sz = (sizeof(struct iwl_scale_tbl_info) -
- (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
+ u32 sz = (sizeof(struct iwl4965_scale_tbl_info) -
+ (sizeof(struct iwl4965_rate_scale_data) * IWL_RATE_COUNT));
u8 start_action = tbl->action;
for (;;) {
@@ -1197,6 +1387,8 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
case IWL_MIMO_SWITCH_ANTENNA_A:
case IWL_MIMO_SWITCH_ANTENNA_B:
IWL_DEBUG_HT("LQ: MIMO SWITCH TO SISO\n");
+
+ /* Set up new search table for SISO */
memcpy(search_tbl, tbl, sz);
search_tbl->lq_type = LQ_SISO;
search_tbl->is_SGI = 0;
@@ -1206,9 +1398,9 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
else
search_tbl->antenna_type = ANT_AUX;
- rc = rs_switch_to_siso(priv, lq_data,
+ ret = rs_switch_to_siso(priv, lq_data, conf, sta,
search_tbl, index);
- if (!rc) {
+ if (!ret) {
lq_data->search_better_tbl = 1;
goto out;
}
@@ -1216,6 +1408,8 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
case IWL_MIMO_SWITCH_GI:
IWL_DEBUG_HT("LQ: MIMO SWITCH TO GI\n");
+
+ /* Set up new search table for MIMO */
memcpy(search_tbl, tbl, sz);
search_tbl->lq_type = LQ_MIMO;
search_tbl->antenna_type = ANT_BOTH;
@@ -1225,6 +1419,22 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
else
search_tbl->is_SGI = 1;
lq_data->search_better_tbl = 1;
+
+ /*
+ * If active table already uses the fastest possible
+ * modulation (dual stream with short guard interval),
+ * and it's working well, there's no need to look
+ * for a better type of modulation!
+ */
+ if ((tbl->lq_type == LQ_MIMO) &&
+ (tbl->is_SGI)) {
+ s32 tpt = lq_data->last_tpt / 100;
+ if (((!tbl->is_fat) &&
+ (tpt >= expected_tpt_mimo20MHz[index])) ||
+ ((tbl->is_fat) &&
+ (tpt >= expected_tpt_mimo40MHz[index])))
+ lq_data->search_better_tbl = 0;
+ }
rs_get_expected_tpt_table(lq_data, search_tbl);
rs_mcs_from_tbl(&search_tbl->current_rate,
search_tbl, index, is_green);
@@ -1232,7 +1442,7 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
}
tbl->action++;
- if (tbl->action > IWL_MIMO_SWITCH_ANTENNA_B)
+ if (tbl->action > IWL_MIMO_SWITCH_GI)
tbl->action = IWL_MIMO_SWITCH_ANTENNA_A;
if (tbl->action == start_action)
@@ -1242,15 +1452,22 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv,
return 0;
out:
tbl->action++;
- if (tbl->action > IWL_MIMO_SWITCH_ANTENNA_B)
+ if (tbl->action > IWL_MIMO_SWITCH_GI)
tbl->action = IWL_MIMO_SWITCH_ANTENNA_A;
return 0;
}
-static void rs_stay_in_table(struct iwl_rate_scale_priv *lq_data)
+/*
+ * Check whether we should continue using same modulation mode, or
+ * begin search for a new mode, based on:
+ * 1) # tx successes or failures while using this mode
+ * 2) # times calling this function
+ * 3) elapsed time in this mode (not used, for now)
+ */
+static void rs_stay_in_table(struct iwl4965_rate_scale_priv *lq_data)
{
- struct iwl_scale_tbl_info *tbl;
+ struct iwl4965_scale_tbl_info *tbl;
int i;
int active_tbl;
int flush_interval_passed = 0;
@@ -1259,27 +1476,49 @@ static void rs_stay_in_table(struct iwl_rate_scale_priv *lq_data)
tbl = &(lq_data->lq_info[active_tbl]);
+ /* If we've been disallowing search, see if we should now allow it */
if (lq_data->stay_in_tbl) {
+ /* Elapsed time using current modulation mode */
if (lq_data->flush_timer)
flush_interval_passed =
time_after(jiffies,
(unsigned long)(lq_data->flush_timer +
IWL_RATE_SCALE_FLUSH_INTVL));
+ /* For now, disable the elapsed time criterion */
flush_interval_passed = 0;
+
+ /*
+ * Check if we should allow search for new modulation mode.
+ * If many frames have failed or succeeded, or we've used
+ * this same modulation for a long time, allow search, and
+ * reset history stats that keep track of whether we should
+ * allow a new search. Also (below) reset all bitmaps and
+ * stats in active history.
+ */
if ((lq_data->total_failed > lq_data->max_failure_limit) ||
(lq_data->total_success > lq_data->max_success_limit) ||
((!lq_data->search_better_tbl) && (lq_data->flush_timer)
&& (flush_interval_passed))) {
- IWL_DEBUG_HT("LQ: stay is expired %d %d \n:",
+ IWL_DEBUG_HT("LQ: stay is expired %d %d %d\n:",
lq_data->total_failed,
- lq_data->total_success);
- lq_data->stay_in_tbl = 0;
+ lq_data->total_success,
+ flush_interval_passed);
+
+ /* Allow search for new mode */
+ lq_data->stay_in_tbl = 0; /* only place reset */
lq_data->total_failed = 0;
lq_data->total_success = 0;
lq_data->flush_timer = 0;
- } else if (lq_data->table_count > 0) {
+
+ /*
+ * Else if we've used this modulation mode enough repetitions
+ * (regardless of elapsed time or success/failure), reset
+ * history bitmaps and rate-specific stats for all rates in
+ * active table.
+ */
+ } else {
lq_data->table_count++;
if (lq_data->table_count >=
lq_data->table_count_limit) {
@@ -1292,6 +1531,9 @@ static void rs_stay_in_table(struct iwl_rate_scale_priv *lq_data)
}
}
+ /* If transitioning to allow "search", reset all history
+ * bitmaps and stats in active table (this will become the new
+ * "search" table). */
if (!lq_data->stay_in_tbl) {
for (i = 0; i < IWL_RATE_COUNT; i++)
rs_rate_scale_clear_window(&(tbl->win[i]));
@@ -1299,16 +1541,22 @@ static void rs_stay_in_table(struct iwl_rate_scale_priv *lq_data)
}
}
-static void rs_rate_scale_perform(struct iwl_priv *priv,
+/*
+ * Do rate scaling and search for new modulation mode.
+ */
+static void rs_rate_scale_perform(struct iwl4965_priv *priv,
struct net_device *dev,
struct ieee80211_hdr *hdr,
struct sta_info *sta)
{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = local_to_hw(local);
+ struct ieee80211_conf *conf = &hw->conf;
int low = IWL_RATE_INVALID;
int high = IWL_RATE_INVALID;
int index;
int i;
- struct iwl_rate_scale_data *window = NULL;
+ struct iwl4965_rate_scale_data *window = NULL;
int current_tpt = IWL_INVALID_VALUE;
int low_tpt = IWL_INVALID_VALUE;
int high_tpt = IWL_INVALID_VALUE;
@@ -1316,10 +1564,10 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
s8 scale_action = 0;
u16 fc, rate_mask;
u8 update_lq = 0;
- struct iwl_rate_scale_priv *lq_data;
- struct iwl_scale_tbl_info *tbl, *tbl1;
+ struct iwl4965_rate_scale_priv *lq_data;
+ struct iwl4965_scale_tbl_info *tbl, *tbl1;
u16 rate_scale_index_msk = 0;
- struct iwl_rate mcs_rate;
+ struct iwl4965_rate mcs_rate;
u8 is_green = 0;
u8 active_tbl = 0;
u8 done_search = 0;
@@ -1338,12 +1586,17 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
if (!sta || !sta->rate_ctrl_priv)
return;
- lq_data = (struct iwl_rate_scale_priv *)sta->rate_ctrl_priv;
- if (!lq_data->ready) {
+ if (!priv->lq_mngr.lq_ready) {
IWL_DEBUG_RATE("still rate scaling not ready\n");
return;
}
+ lq_data = (struct iwl4965_rate_scale_priv *)sta->rate_ctrl_priv;
+ /*
+ * Select rate-scale / modulation-mode table to work with in
+ * the rest of this function: "search" if searching for better
+ * modulation mode, or "active" if doing rate scaling within a mode.
+ */
if (!lq_data->search_better_tbl)
active_tbl = lq_data->active_tbl;
else
@@ -1352,11 +1605,13 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
tbl = &(lq_data->lq_info[active_tbl]);
is_green = lq_data->is_green;
+ /* current tx rate */
index = sta->last_txrate;
IWL_DEBUG_RATE("Rate scale index %d for type %d\n", index,
tbl->lq_type);
+ /* rates available for this association, and for modulation mode */
rs_get_supported_rates(lq_data, hdr, tbl->lq_type,
&rate_mask);
@@ -1364,13 +1619,13 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
/* mask with station rate restriction */
if (is_legacy(tbl->lq_type)) {
- if ((lq_data->phymode == (u8) MODE_IEEE80211A) ||
- (lq_data->phymode == (u8) MODE_ATHEROS_TURBO))
+ if (lq_data->phymode == (u8) MODE_IEEE80211A)
+ /* supp_rates has no CCK bits in A mode */
rate_scale_index_msk = (u16) (rate_mask &
- (sta->supp_rates << IWL_FIRST_OFDM_RATE));
+ (lq_data->supp_rates << IWL_FIRST_OFDM_RATE));
else
rate_scale_index_msk = (u16) (rate_mask &
- sta->supp_rates);
+ lq_data->supp_rates);
} else
rate_scale_index_msk = rate_mask;
@@ -1378,11 +1633,13 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
if (!rate_scale_index_msk)
rate_scale_index_msk = rate_mask;
+ /* If current rate is no longer supported on current association,
+ * or user changed preferences for rates, find a new supported rate. */
if (index < 0 || !((1 << index) & rate_scale_index_msk)) {
index = IWL_INVALID_VALUE;
update_lq = 1;
- /* get the lowest availabe rate */
+ /* get the highest available rate */
for (i = 0; i <= IWL_RATE_COUNT; i++) {
if ((1 << i) & rate_scale_index_msk)
index = i;
@@ -1394,36 +1651,55 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
}
}
+ /* Get expected throughput table and history window for current rate */
if (!tbl->expected_tpt)
rs_get_expected_tpt_table(lq_data, tbl);
window = &(tbl->win[index]);
+ /*
+ * If there is not enough history to calculate actual average
+ * throughput, keep analyzing results of more tx frames, without
+ * changing rate or mode (bypass most of the rest of this function).
+ * Set up new rate table in uCode only if old rate is not supported
+ * in current association (use new rate found above).
+ */
fail_count = window->counter - window->success_counter;
if (((fail_count < IWL_RATE_MIN_FAILURE_TH) &&
(window->success_counter < IWL_RATE_MIN_SUCCESS_TH))
|| (tbl->expected_tpt == NULL)) {
- IWL_DEBUG_RATE("LQ: still below TH succ %d total %d\n",
- window->success_counter, window->counter);
+ IWL_DEBUG_RATE("LQ: still below TH succ %d total %d "
+ "for index %d\n",
+ window->success_counter, window->counter, index);
+
+ /* Can't calculate this yet; not enough history */
window->average_tpt = IWL_INVALID_VALUE;
+
+ /* Should we stay with this modulation mode,
+ * or search for a new one? */
rs_stay_in_table(lq_data);
+
+ /* Set up new rate table in uCode, if needed */
if (update_lq) {
rs_mcs_from_tbl(&mcs_rate, tbl, index, is_green);
- rs_fill_link_cmd(lq_data, &mcs_rate, &(lq_data->lq));
- if (!rs_send_lq_cmd(priv, &lq_data->lq, CMD_ASYNC))
- lq_data->commit_lq = 0;
- else
- lq_data->commit_lq = 1;
+ rs_fill_link_cmd(lq_data, &mcs_rate, &lq_data->lq);
+ rs_send_lq_cmd(priv, &lq_data->lq, CMD_ASYNC);
}
goto out;
+ /* Else we have enough samples; calculate estimate of
+ * actual average throughput */
} else
window->average_tpt = ((window->success_ratio *
tbl->expected_tpt[index] + 64) / 128);
+ /* If we are searching for better modulation mode, check success. */
if (lq_data->search_better_tbl) {
int success_limit = IWL_RATE_SCALE_SWITCH;
+ /* If good success, continue using the "search" mode;
+ * no need to send new link quality command, since we're
+ * continuing to use the setup that we've been trying. */
if ((window->success_ratio > success_limit) ||
(window->average_tpt > lq_data->last_tpt)) {
if (!is_legacy(tbl->lq_type)) {
@@ -1435,55 +1711,78 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
lq_data->last_tpt);
lq_data->enable_counter = 1;
}
+ /* Swap tables; "search" becomes "active" */
lq_data->active_tbl = active_tbl;
current_tpt = window->average_tpt;
+
+ /* Else poor success; go back to mode in "active" table */
} else {
+ /* Nullify "search" table */
tbl->lq_type = LQ_NONE;
+
+ /* Revert to "active" table */
active_tbl = lq_data->active_tbl;
tbl = &(lq_data->lq_info[active_tbl]);
- index = iwl_rate_index_from_plcp(
+ /* Revert to "active" rate and throughput info */
+ index = iwl4965_rate_index_from_plcp(
tbl->current_rate.rate_n_flags);
+ current_tpt = lq_data->last_tpt;
+ /* Need to set up a new rate table in uCode */
update_lq = 1;
- current_tpt = lq_data->last_tpt;
IWL_DEBUG_HT("XXY GO BACK TO OLD TABLE\n");
}
+
+ /* Either way, we've made a decision; modulation mode
+ * search is done, allow rate adjustment next time. */
lq_data->search_better_tbl = 0;
- done_search = 1;
+ done_search = 1; /* Don't switch modes below! */
goto lq_update;
}
+ /* (Else) not in search of better modulation mode, try for better
+ * starting rate, while staying in this mode. */
high_low = rs_get_adjacent_rate(index, rate_scale_index_msk,
tbl->lq_type);
low = high_low & 0xff;
high = (high_low >> 8) & 0xff;
+ /* Collect measured throughputs for current and adjacent rates */
current_tpt = window->average_tpt;
-
- if (low != IWL_RATE_INVALID) {
+ if (low != IWL_RATE_INVALID)
low_tpt = tbl->win[low].average_tpt;
- }
if (high != IWL_RATE_INVALID)
high_tpt = tbl->win[high].average_tpt;
-
+ /* Assume rate increase */
scale_action = 1;
+ /* Too many failures, decrease rate */
if ((window->success_ratio <= IWL_RATE_DECREASE_TH) ||
(current_tpt == 0)) {
IWL_DEBUG_RATE("decrease rate because of low success_ratio\n");
scale_action = -1;
+
+ /* No throughput measured yet for adjacent rates; try increase. */
} else if ((low_tpt == IWL_INVALID_VALUE) &&
- (high_tpt == IWL_INVALID_VALUE)) {
+ (high_tpt == IWL_INVALID_VALUE))
scale_action = 1;
- } else if ((low_tpt != IWL_INVALID_VALUE) &&
- (high_tpt != IWL_INVALID_VALUE)
- && (low_tpt < current_tpt)
- && (high_tpt < current_tpt)) {
+
+ /* Both adjacent throughputs are measured, but neither one has better
+ * throughput; we're using the best rate, don't change it! */
+ else if ((low_tpt != IWL_INVALID_VALUE) &&
+ (high_tpt != IWL_INVALID_VALUE) &&
+ (low_tpt < current_tpt) &&
+ (high_tpt < current_tpt))
scale_action = 0;
- } else {
+
+ /* At least one adjacent rate's throughput is measured,
+ * and may have better performance. */
+ else {
+ /* Higher adjacent rate's throughput is measured */
if (high_tpt != IWL_INVALID_VALUE) {
+ /* Higher rate has better throughput */
if (high_tpt > current_tpt)
scale_action = 1;
else {
@@ -1491,7 +1790,10 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
("decrease rate because of high tpt\n");
scale_action = -1;
}
+
+ /* Lower adjacent rate's throughput is measured */
} else if (low_tpt != IWL_INVALID_VALUE) {
+ /* Lower rate has better throughput */
if (low_tpt > current_tpt) {
IWL_DEBUG_RATE
("decrease rate because of low tpt\n");
@@ -1501,82 +1803,103 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
}
}
+ /* Sanity check; asked for decrease, but success rate or throughput
+ * has been good at old rate. Don't change it. */
if (scale_action == -1) {
if ((low != IWL_RATE_INVALID) &&
((window->success_ratio > IWL_RATE_HIGH_TH) ||
(current_tpt > (100 * tbl->expected_tpt[low]))))
scale_action = 0;
+
+ /* Sanity check; asked for increase, but success rate has not been great
+ * even at old rate, higher rate will be worse. Don't change it. */
} else if ((scale_action == 1) &&
(window->success_ratio < IWL_RATE_INCREASE_TH))
scale_action = 0;
switch (scale_action) {
case -1:
+ /* Decrease starting rate, update uCode's rate table */
if (low != IWL_RATE_INVALID) {
update_lq = 1;
index = low;
}
break;
-
case 1:
+ /* Increase starting rate, update uCode's rate table */
if (high != IWL_RATE_INVALID) {
update_lq = 1;
index = high;
}
break;
-
case 0:
-
+ /* No change */
default:
break;
}
- IWL_DEBUG_HT
- ("choose rate scale index %d action %d low %d high %d\n",
- index, scale_action, low, high);
+ IWL_DEBUG_HT("choose rate scale index %d action %d low %d "
+ "high %d type %d\n",
+ index, scale_action, low, high, tbl->lq_type);
lq_update:
+ /* Replace uCode's rate table for the destination station. */
if (update_lq) {
rs_mcs_from_tbl(&mcs_rate, tbl, index, is_green);
- rs_fill_link_cmd(lq_data, &mcs_rate, &(lq_data->lq));
- if (!rs_send_lq_cmd(priv, &lq_data->lq, CMD_ASYNC))
- lq_data->commit_lq = 0;
- else
- lq_data->commit_lq = 1;
+ rs_fill_link_cmd(lq_data, &mcs_rate, &lq_data->lq);
+ rs_send_lq_cmd(priv, &lq_data->lq, CMD_ASYNC);
}
+
+ /* Should we stay with this modulation mode, or search for a new one? */
rs_stay_in_table(lq_data);
- if (!update_lq
- && !done_search && !lq_data->stay_in_tbl) {
+
+ /*
+ * Search for new modulation mode if we're:
+ * 1) Not changing rates right now
+ * 2) Not just finishing up a search
+ * 3) Allowing a new search
+ */
+ if (!update_lq && !done_search && !lq_data->stay_in_tbl) {
+ /* Save current throughput to compare with "search" throughput*/
lq_data->last_tpt = current_tpt;
+
+ /* Select a new "search" modulation mode to try.
+ * If one is found, set up the new "search" table. */
if (is_legacy(tbl->lq_type))
- rs_move_legacy_other(priv, lq_data, index);
+ rs_move_legacy_other(priv, lq_data, conf, sta, index);
else if (is_siso(tbl->lq_type))
- rs_move_siso_to_other(priv, lq_data, index);
+ rs_move_siso_to_other(priv, lq_data, conf, sta, index);
else
- rs_move_mimo_to_other(priv, lq_data, index);
+ rs_move_mimo_to_other(priv, lq_data, conf, sta, index);
+ /* If new "search" mode was selected, set up in uCode table */
if (lq_data->search_better_tbl) {
+ /* Access the "search" table, clear its history. */
tbl = &(lq_data->lq_info[(1 - lq_data->active_tbl)]);
for (i = 0; i < IWL_RATE_COUNT; i++)
rs_rate_scale_clear_window(&(tbl->win[i]));
- index = iwl_rate_index_from_plcp(
- tbl->current_rate.rate_n_flags);
+ /* Use new "search" start rate */
+ index = iwl4965_rate_index_from_plcp(
+ tbl->current_rate.rate_n_flags);
IWL_DEBUG_HT("Switch current mcs: %X index: %d\n",
tbl->current_rate.rate_n_flags, index);
rs_fill_link_cmd(lq_data, &tbl->current_rate,
- &(lq_data->lq));
- if (!rs_send_lq_cmd(priv, &lq_data->lq, CMD_ASYNC))
- lq_data->commit_lq = 0;
- else
- lq_data->commit_lq = 1;
+ &lq_data->lq);
+ rs_send_lq_cmd(priv, &lq_data->lq, CMD_ASYNC);
}
+
+ /* If the "active" (non-search) mode was legacy,
+ * and we've tried switching antennas,
+ * but we haven't been able to try HT modes (not available),
+ * stay with best antenna legacy modulation for a while
+ * before next round of mode comparisons. */
tbl1 = &(lq_data->lq_info[lq_data->active_tbl]);
if (is_legacy(tbl1->lq_type) &&
-#ifdef CONFIG_IWLWIFI_HT
- !priv->current_assoc_ht.is_ht &&
+#ifdef CONFIG_IWL4965_HT
+ (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)) &&
#endif
(lq_data->action_counter >= 1)) {
lq_data->action_counter = 0;
@@ -1584,48 +1907,69 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
rs_set_stay_in_table(1, lq_data);
}
+ /* If we're in an HT mode, and all 3 mode switch actions
+ * have been tried and compared, stay in this best modulation
+ * mode for a while before next round of mode comparisons. */
if (lq_data->enable_counter &&
(lq_data->action_counter >= IWL_ACTION_LIMIT)) {
+#ifdef CONFIG_IWL4965_HT_AGG
+ /* If appropriate, set up aggregation! */
+ if ((lq_data->last_tpt > TID_AGG_TPT_THREHOLD) &&
+ (priv->lq_mngr.agg_ctrl.auto_agg)) {
+ priv->lq_mngr.agg_ctrl.tid_retry =
+ TID_ALL_SPECIFIED;
+ schedule_work(&priv->agg_work);
+ }
+#endif /*CONFIG_IWL4965_HT_AGG */
lq_data->action_counter = 0;
rs_set_stay_in_table(0, lq_data);
}
+
+ /*
+ * Else, don't search for a new modulation mode.
+ * Put new timestamp in stay-in-modulation-mode flush timer if:
+ * 1) Not changing rates right now
+ * 2) Not just finishing up a search
+ * 3) flush timer is empty
+ */
} else {
if ((!update_lq) && (!done_search) && (!lq_data->flush_timer))
lq_data->flush_timer = jiffies;
}
- out:
+out:
rs_mcs_from_tbl(&tbl->current_rate, tbl, index, is_green);
i = index;
sta->last_txrate = i;
+
/* sta->txrate is an index to A mode rates which start
- * at IWL_FIRST_OFDM_RATE */
- if ((lq_data->phymode == (u8) MODE_IEEE80211A) ||
- (lq_data->phymode == (u8) MODE_ATHEROS_TURBO))
+ * at IWL_FIRST_OFDM_RATE
+ */
+ if (lq_data->phymode == (u8) MODE_IEEE80211A)
sta->txrate = i - IWL_FIRST_OFDM_RATE;
-
- sta->antenna_sel_tx = tbl->lq_type;
+ else
+ sta->txrate = i;
return;
}
-static void rs_initialize_lq(struct iwl_priv *priv,
- struct sta_info *sta,
- int flg)
+static void rs_initialize_lq(struct iwl4965_priv *priv,
+ struct ieee80211_conf *conf,
+ struct sta_info *sta)
{
int i;
- struct iwl_rate_scale_priv *lq;
- struct iwl_scale_tbl_info *tbl;
+ struct iwl4965_rate_scale_priv *lq;
+ struct iwl4965_scale_tbl_info *tbl;
u8 active_tbl = 0;
int rate_idx;
- u8 use_green = rs_use_green(priv);
- struct iwl_rate mcs_rate;
+ u8 use_green = rs_use_green(priv, conf);
+ struct iwl4965_rate mcs_rate;
if (!sta || !sta->rate_ctrl_priv)
goto out;
- lq = (struct iwl_rate_scale_priv *)sta->rate_ctrl_priv;
+ lq = (struct iwl4965_rate_scale_priv *)sta->rate_ctrl_priv;
i = sta->last_txrate;
if ((lq->lq.sta_id == 0xff) &&
@@ -1642,7 +1986,7 @@ static void rs_initialize_lq(struct iwl_priv *priv,
if ((i < 0) || (i >= IWL_RATE_COUNT))
i = 0;
- mcs_rate.rate_n_flags = iwl_rates[i].plcp ;
+ mcs_rate.rate_n_flags = iwl4965_rates[i].plcp ;
mcs_rate.rate_n_flags |= RATE_MCS_ANT_B_MSK;
mcs_rate.rate_n_flags &= ~RATE_MCS_ANT_A_MSK;
@@ -1652,13 +1996,13 @@ static void rs_initialize_lq(struct iwl_priv *priv,
tbl->antenna_type = ANT_AUX;
rs_get_tbl_info_from_mcs(&mcs_rate, priv->phymode, tbl, &rate_idx);
if (!rs_is_ant_connected(priv->valid_antenna, tbl->antenna_type))
- rs_toggle_antenna(&mcs_rate, tbl),
+ rs_toggle_antenna(&mcs_rate, tbl);
rs_mcs_from_tbl(&mcs_rate, tbl, rate_idx, use_green);
tbl->current_rate.rate_n_flags = mcs_rate.rate_n_flags;
rs_get_expected_tpt_table(lq, tbl);
- rs_fill_link_cmd(lq, &mcs_rate, &(lq->lq));
- lq->commit_lq = 1;
+ rs_fill_link_cmd(lq, &mcs_rate, &lq->lq);
+ rs_send_lq_cmd(priv, &lq->lq, CMD_ASYNC);
out:
return;
}
@@ -1688,13 +2032,14 @@ static struct ieee80211_rate *rs_get_rate(void *priv_rate,
int i;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_conf *conf = &local->hw.conf;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct sta_info *sta;
u16 fc;
- struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
- struct iwl_rate_scale_priv *lq;
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)priv_rate;
+ struct iwl4965_rate_scale_priv *lq;
- IWL_DEBUG_RATE("rate scale calculate new rate for skb\n");
+ IWL_DEBUG_RATE_LIMIT("rate scale calculate new rate for skb\n");
memset(extra, 0, sizeof(*extra));
@@ -1714,37 +2059,51 @@ static struct ieee80211_rate *rs_get_rate(void *priv_rate,
return rs_get_lowest_rate(local);
}
+ lq = (struct iwl4965_rate_scale_priv *)sta->rate_ctrl_priv;
i = sta->last_txrate;
- lq = (struct iwl_rate_scale_priv *)sta->rate_ctrl_priv;
- if (lq->commit_lq && lq->ready) {
- lq->commit_lq = 0;
- if (rs_send_lq_cmd(priv, &lq->lq, CMD_ASYNC))
- lq->commit_lq = 1;
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) && !lq->ibss_sta_added) {
+ u8 sta_id = iwl4965_hw_find_station(priv, hdr->addr1);
+ DECLARE_MAC_BUF(mac);
+
+ if (sta_id == IWL_INVALID_STATION) {
+ IWL_DEBUG_RATE("LQ: ADD station %s\n",
+ print_mac(mac, hdr->addr1));
+ sta_id = iwl4965_add_station_flags(priv, hdr->addr1,
+ 0, CMD_ASYNC, NULL);
+ }
+ if ((sta_id != IWL_INVALID_STATION)) {
+ lq->lq.sta_id = sta_id;
+ lq->lq.rs_table[0].rate_n_flags = 0;
+ lq->ibss_sta_added = 1;
+ rs_initialize_lq(priv, conf, sta);
+ }
+ if (!lq->ibss_sta_added)
+ goto done;
}
+ done:
sta_info_put(sta);
- if ((i < 0) || (i > IWL_RATE_COUNT)) {
+ if ((i < 0) || (i > IWL_RATE_COUNT))
return rs_get_lowest_rate(local);
- }
return &priv->ieee_rates[i];
}
static void *rs_alloc_sta(void *priv, gfp_t gfp)
{
- struct iwl_rate_scale_priv *crl;
+ struct iwl4965_rate_scale_priv *crl;
int i, j;
IWL_DEBUG_RATE("create station rate scale window\n");
- crl = kzalloc(sizeof(struct iwl_rate_scale_priv), gfp);
+
+ crl = kzalloc(sizeof(struct iwl4965_rate_scale_priv), gfp);
if (crl == NULL)
return NULL;
-
- memset(crl, 0, sizeof(struct iwl_rate_scale_priv));
crl->lq.sta_id = 0xff;
+
for (j = 0; j < LQ_SIZE; j++)
for (i = 0; i < IWL_RATE_COUNT; i++)
rs_rate_scale_clear_window(&(crl->lq_info[j].win[i]));
@@ -1757,17 +2116,13 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
struct sta_info *sta)
{
int i, j;
+ struct ieee80211_conf *conf = &local->hw.conf;
struct ieee80211_hw_mode *mode = local->oper_hw_mode;
- struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
- struct iwl_rate_scale_priv *crl = priv_sta;
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)priv_rate;
+ struct iwl4965_rate_scale_priv *crl = priv_sta;
- if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS)
- mutex_lock(&priv->mutex);
-
- memset(crl, 0, sizeof(struct iwl_rate_scale_priv));
-
- crl->lq.sta_id = 0xff;
crl->flush_timer = 0;
+ crl->supp_rates = sta->supp_rates;
sta->txrate = 3;
for (j = 0; j < LQ_SIZE; j++)
for (i = 0; i < IWL_RATE_COUNT; i++)
@@ -1779,129 +2134,162 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
* previous packets? Need to have IEEE 802.1X auth succeed immediately
* after assoc.. */
- if (((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) ||
- (priv->iw_mode == IEEE80211_IF_TYPE_AP))) {
- u8 sta_id = iwl_hw_find_station(priv, sta->addr);
+ crl->ibss_sta_added = 0;
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+ u8 sta_id = iwl4965_hw_find_station(priv, sta->addr);
+ DECLARE_MAC_BUF(mac);
+
/* for IBSS the call are from tasklet */
- IWL_DEBUG_HT("LQ: ADD station " MAC_FMT " \n",
- MAC_ARG(sta->addr));
+ IWL_DEBUG_HT("LQ: ADD station %s\n",
+ print_mac(mac, sta->addr));
if (sta_id == IWL_INVALID_STATION) {
- IWL_DEBUG_RATE("LQ: ADD station " MAC_FMT "\n",
- MAC_ARG(sta->addr));
- sta_id = iwl_add_station(priv,
- sta->addr, 0, CMD_ASYNC);
+ IWL_DEBUG_RATE("LQ: ADD station %s\n",
+ print_mac(mac, sta->addr));
+ sta_id = iwl4965_add_station_flags(priv, sta->addr,
+ 0, CMD_ASYNC, NULL);
}
if ((sta_id != IWL_INVALID_STATION)) {
crl->lq.sta_id = sta_id;
- crl->lq.rate_scale_table[0].rate_n_flags = 0;
+ crl->lq.rs_table[0].rate_n_flags = 0;
}
- crl->ready = 1;
+ /* FIXME: this is w/a remove it later */
+ priv->assoc_station_added = 1;
}
+ /* Find highest tx rate supported by hardware and destination station */
for (i = 0; i < mode->num_rates; i++) {
if ((sta->supp_rates & BIT(i)) &&
(mode->rates[i].flags & IEEE80211_RATE_SUPPORTED))
sta->txrate = i;
}
sta->last_txrate = sta->txrate;
- /* For MODE_IEEE80211A mode cck rate are at end
- * rate table
- */
- if ((local->hw.conf.phymode == MODE_IEEE80211A) ||
- (local->hw.conf.phymode == MODE_ATHEROS_TURBO))
+ /* For MODE_IEEE80211A, cck rates are at end of rate table */
+ if (local->hw.conf.phymode == MODE_IEEE80211A)
sta->last_txrate += IWL_FIRST_OFDM_RATE;
- crl->is_dup = priv->is_dup;
+ crl->is_dup = 0;
crl->valid_antenna = priv->valid_antenna;
crl->antenna = priv->antenna;
- crl->is_green = rs_use_green(priv);
+ crl->is_green = rs_use_green(priv, conf);
crl->active_rate = priv->active_rate;
crl->active_rate &= ~(0x1000);
crl->active_rate_basic = priv->active_rate_basic;
crl->phymode = priv->phymode;
-#ifdef CONFIG_IWLWIFI_HT
- crl->active_siso_rate = (priv->active_rate_ht[0] << 1);
- crl->active_siso_rate |= (priv->active_rate_ht[0] & 0x1);
+#ifdef CONFIG_IWL4965_HT
+ /*
+ * active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3),
+ * supp_rates[] does not; shift to convert format, force 9 MBits off.
+ */
+ crl->active_siso_rate = (priv->current_ht_config.supp_mcs_set[0] << 1);
+ crl->active_siso_rate |=
+ (priv->current_ht_config.supp_mcs_set[0] & 0x1);
crl->active_siso_rate &= ~((u16)0x2);
crl->active_siso_rate = crl->active_siso_rate << IWL_FIRST_OFDM_RATE;
- crl->active_mimo_rate = (priv->active_rate_ht[1] << 1);
- crl->active_mimo_rate |= (priv->active_rate_ht[1] & 0x1);
+ /* Same here */
+ crl->active_mimo_rate = (priv->current_ht_config.supp_mcs_set[1] << 1);
+ crl->active_mimo_rate |=
+ (priv->current_ht_config.supp_mcs_set[1] & 0x1);
crl->active_mimo_rate &= ~((u16)0x2);
crl->active_mimo_rate = crl->active_mimo_rate << IWL_FIRST_OFDM_RATE;
-#endif /*CONFIG_IWLWIFI_HT*/
+ IWL_DEBUG_HT("MIMO RATE 0x%X SISO MASK 0x%X\n", crl->active_siso_rate,
+ crl->active_mimo_rate);
+#endif /*CONFIG_IWL4965_HT*/
+#ifdef CONFIG_MAC80211_DEBUGFS
+ crl->drv = priv;
+#endif
if (priv->assoc_station_added)
- crl->ready = 1;
-
- if (priv && (priv->iw_mode != IEEE80211_IF_TYPE_IBSS))
- rs_initialize_lq(priv, sta, 0);
- else
- rs_initialize_lq(priv, sta, CMD_ASYNC);
+ priv->lq_mngr.lq_ready = 1;
- if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS)
- mutex_unlock(&priv->mutex);
+ rs_initialize_lq(priv, conf, sta);
}
-static int rs_fill_link_cmd(struct iwl_rate_scale_priv *lq_data,
- struct iwl_rate *tx_mcs,
- struct iwl_link_quality_cmd *lq_cmd)
+static void rs_fill_link_cmd(struct iwl4965_rate_scale_priv *lq_data,
+ struct iwl4965_rate *tx_mcs,
+ struct iwl4965_link_quality_cmd *lq_cmd)
{
int index = 0;
- int rc = 0;
int rate_idx;
+ int repeat_rate = 0;
u8 ant_toggle_count = 0;
u8 use_ht_possible = 1;
- u8 repeat_cur_rate = 0;
- struct iwl_rate new_rate;
- struct iwl_scale_tbl_info tbl_type = { 0 };
+ struct iwl4965_rate new_rate;
+ struct iwl4965_scale_tbl_info tbl_type = { 0 };
+ /* Override starting rate (index 0) if needed for debug purposes */
+ rs_dbgfs_set_mcs(lq_data, tx_mcs, index);
+
+ /* Interpret rate_n_flags */
rs_get_tbl_info_from_mcs(tx_mcs, lq_data->phymode,
&tbl_type, &rate_idx);
+ /* How many times should we repeat the initial rate? */
if (is_legacy(tbl_type.lq_type)) {
ant_toggle_count = 1;
- repeat_cur_rate = IWL_NUMBER_TRY;
+ repeat_rate = IWL_NUMBER_TRY;
} else
- repeat_cur_rate = IWL_HT_NUMBER_TRY;
+ repeat_rate = IWL_HT_NUMBER_TRY;
+
+ lq_cmd->general_params.mimo_delimiter =
+ is_mimo(tbl_type.lq_type) ? 1 : 0;
- lq_cmd->rate_scale_table[index].rate_n_flags = tx_mcs->rate_n_flags;
- lq_cmd->general_params.mimo_delimiter = is_mimo(tbl_type.lq_type) ? 1 : 0;
+ /* Fill 1st table entry (index 0) */
+ lq_cmd->rs_table[index].rate_n_flags =
+ cpu_to_le32(tx_mcs->rate_n_flags);
new_rate.rate_n_flags = tx_mcs->rate_n_flags;
if (is_mimo(tbl_type.lq_type) || (tbl_type.antenna_type == ANT_MAIN))
- lq_cmd->general_params.single_stream_ant_msk = 1;
+ lq_cmd->general_params.single_stream_ant_msk
+ = LINK_QUAL_ANT_A_MSK;
else
- lq_cmd->general_params.single_stream_ant_msk = 2;
+ lq_cmd->general_params.single_stream_ant_msk
+ = LINK_QUAL_ANT_B_MSK;
index++;
- repeat_cur_rate--;
+ repeat_rate--;
+ /* Fill rest of rate table */
while (index < LINK_QUAL_MAX_RETRY_NUM) {
- while (repeat_cur_rate && (index < LINK_QUAL_MAX_RETRY_NUM)) {
- if (is_legacy(tbl_type.lq_type)){
- if (ant_toggle_count < NUM_TRY_BEFORE_ANTENNA_TOGGLE)
+ /* Repeat initial/next rate.
+ * For legacy IWL_NUMBER_TRY == 1, this loop will not execute.
+ * For HT IWL_HT_NUMBER_TRY == 3, this executes twice. */
+ while (repeat_rate > 0 && (index < LINK_QUAL_MAX_RETRY_NUM)) {
+ if (is_legacy(tbl_type.lq_type)) {
+ if (ant_toggle_count <
+ NUM_TRY_BEFORE_ANTENNA_TOGGLE)
ant_toggle_count++;
else {
rs_toggle_antenna(&new_rate, &tbl_type);
ant_toggle_count = 1;
}
}
- lq_cmd->rate_scale_table[index].rate_n_flags =
- new_rate.rate_n_flags;
- repeat_cur_rate--;
+
+ /* Override next rate if needed for debug purposes */
+ rs_dbgfs_set_mcs(lq_data, &new_rate, index);
+
+ /* Fill next table entry */
+ lq_cmd->rs_table[index].rate_n_flags =
+ cpu_to_le32(new_rate.rate_n_flags);
+ repeat_rate--;
index++;
}
- rs_get_tbl_info_from_mcs(&lq_cmd->rate_scale_table[index - 1],
- lq_data->phymode,
- &tbl_type, &rate_idx);
+
+ rs_get_tbl_info_from_mcs(&new_rate, lq_data->phymode, &tbl_type,
+ &rate_idx);
+
+ /* Indicate to uCode which entries might be MIMO.
+ * If initial rate was MIMO, this will finally end up
+ * as (IWL_HT_NUMBER_TRY * 2), after 2nd pass, otherwise 0. */
if (is_mimo(tbl_type.lq_type))
lq_cmd->general_params.mimo_delimiter = index;
- rs_get_lower_rate(lq_data, &tbl_type,
- rate_idx, use_ht_possible, &new_rate);
+ /* Get next rate */
+ rs_get_lower_rate(lq_data, &tbl_type, rate_idx,
+ use_ht_possible, &new_rate);
+ /* How many times should we repeat the next rate? */
if (is_legacy(tbl_type.lq_type)) {
if (ant_toggle_count < NUM_TRY_BEFORE_ANTENNA_TOGGLE)
ant_toggle_count++;
@@ -1909,55 +2297,228 @@ static int rs_fill_link_cmd(struct iwl_rate_scale_priv *lq_data,
rs_toggle_antenna(&new_rate, &tbl_type);
ant_toggle_count = 1;
}
- repeat_cur_rate = IWL_NUMBER_TRY;
- } else {
- repeat_cur_rate = IWL_HT_NUMBER_TRY;
- }
+ repeat_rate = IWL_NUMBER_TRY;
+ } else
+ repeat_rate = IWL_HT_NUMBER_TRY;
+ /* Don't allow HT rates after next pass.
+ * rs_get_lower_rate() will change type to LQ_A or LQ_G. */
use_ht_possible = 0;
- lq_cmd->rate_scale_table[index].rate_n_flags =
- new_rate.rate_n_flags;
- /*lq_cmd->rate_scale_table[index].rate_n_flags = 0x800d; */
+ /* Override next rate if needed for debug purposes */
+ rs_dbgfs_set_mcs(lq_data, &new_rate, index);
+
+ /* Fill next table entry */
+ lq_cmd->rs_table[index].rate_n_flags =
+ cpu_to_le32(new_rate.rate_n_flags);
index++;
- repeat_cur_rate--;
+ repeat_rate--;
}
- /*lq_cmd->rate_scale_table[0].rate_n_flags = 0x800d; */
-
lq_cmd->general_params.dual_stream_ant_msk = 3;
lq_cmd->agg_params.agg_dis_start_th = 3;
- lq_cmd->agg_params.agg_time_limit = 4000;
- return rc;
+ lq_cmd->agg_params.agg_time_limit = cpu_to_le16(4000);
}
static void *rs_alloc(struct ieee80211_local *local)
{
- IWL_DEBUG_RATE("enter\n");
- IWL_DEBUG_RATE("leave\n");
return local->hw.priv;
}
+/* rate scale requires free function to be implemented */
+static void rs_free(void *priv_rate)
+{
+ return;
+}
-static void rs_free(void *data)
+static void rs_clear(void *priv_rate)
{
+ struct iwl4965_priv *priv = (struct iwl4965_priv *) priv_rate;
+
IWL_DEBUG_RATE("enter\n");
+
+ priv->lq_mngr.lq_ready = 0;
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+ if (priv->lq_mngr.agg_ctrl.granted_ba)
+ iwl4965_turn_off_agg(priv, TID_ALL_SPECIFIED);
+#endif /*CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
+
IWL_DEBUG_RATE("leave\n");
}
static void rs_free_sta(void *priv, void *priv_sta)
{
- struct iwl_rate_scale_priv *rs_priv = priv_sta;
+ struct iwl4965_rate_scale_priv *rs_priv = priv_sta;
IWL_DEBUG_RATE("enter\n");
kfree(rs_priv);
IWL_DEBUG_RATE("leave\n");
}
-static void rs_clear(void *priv)
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+static int open_file_generic(struct inode *inode, struct file *file)
{
- IWL_DEBUG_RATE("NOP\n");
+ file->private_data = inode->i_private;
+ return 0;
}
+static void rs_dbgfs_set_mcs(struct iwl4965_rate_scale_priv *rs_priv,
+ struct iwl4965_rate *mcs, int index)
+{
+ u32 base_rate;
+
+ if (rs_priv->phymode == (u8) MODE_IEEE80211A)
+ base_rate = 0x800D;
+ else
+ base_rate = 0x820A;
+
+ if (rs_priv->dbg_fixed.rate_n_flags) {
+ if (index < 12)
+ mcs->rate_n_flags = rs_priv->dbg_fixed.rate_n_flags;
+ else
+ mcs->rate_n_flags = base_rate;
+ IWL_DEBUG_RATE("Fixed rate ON\n");
+ return;
+ }
+
+ IWL_DEBUG_RATE("Fixed rate OFF\n");
+}
+
+static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file,
+ const char __user *user_buf, size_t count, loff_t *ppos)
+{
+ struct iwl4965_rate_scale_priv *rs_priv = file->private_data;
+ char buf[64];
+ int buf_size;
+ u32 parsed_rate;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+
+ if (sscanf(buf, "%x", &parsed_rate) == 1)
+ rs_priv->dbg_fixed.rate_n_flags = parsed_rate;
+ else
+ rs_priv->dbg_fixed.rate_n_flags = 0;
+
+ rs_priv->active_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */
+ rs_priv->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
+ rs_priv->active_mimo_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
+
+ IWL_DEBUG_RATE("sta_id %d rate 0x%X\n",
+ rs_priv->lq.sta_id, rs_priv->dbg_fixed.rate_n_flags);
+
+ if (rs_priv->dbg_fixed.rate_n_flags) {
+ rs_fill_link_cmd(rs_priv, &rs_priv->dbg_fixed, &rs_priv->lq);
+ rs_send_lq_cmd(rs_priv->drv, &rs_priv->lq, CMD_ASYNC);
+ }
+
+ return count;
+}
+
+static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
+ char __user *user_buf, size_t count, loff_t *ppos)
+{
+ char buff[1024];
+ int desc = 0;
+ int i = 0;
+
+ struct iwl4965_rate_scale_priv *rs_priv = file->private_data;
+
+ desc += sprintf(buff+desc, "sta_id %d\n", rs_priv->lq.sta_id);
+ desc += sprintf(buff+desc, "failed=%d success=%d rate=0%X\n",
+ rs_priv->total_failed, rs_priv->total_success,
+ rs_priv->active_rate);
+ desc += sprintf(buff+desc, "fixed rate 0x%X\n",
+ rs_priv->dbg_fixed.rate_n_flags);
+ desc += sprintf(buff+desc, "general:"
+ "flags=0x%X mimo-d=%d s-ant0x%x d-ant=0x%x\n",
+ rs_priv->lq.general_params.flags,
+ rs_priv->lq.general_params.mimo_delimiter,
+ rs_priv->lq.general_params.single_stream_ant_msk,
+ rs_priv->lq.general_params.dual_stream_ant_msk);
+
+ desc += sprintf(buff+desc, "agg:"
+ "time_limit=%d dist_start_th=%d frame_cnt_limit=%d\n",
+ le16_to_cpu(rs_priv->lq.agg_params.agg_time_limit),
+ rs_priv->lq.agg_params.agg_dis_start_th,
+ rs_priv->lq.agg_params.agg_frame_cnt_limit);
+
+ desc += sprintf(buff+desc,
+ "Start idx [0]=0x%x [1]=0x%x [2]=0x%x [3]=0x%x\n",
+ rs_priv->lq.general_params.start_rate_index[0],
+ rs_priv->lq.general_params.start_rate_index[1],
+ rs_priv->lq.general_params.start_rate_index[2],
+ rs_priv->lq.general_params.start_rate_index[3]);
+
+
+ for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
+ desc += sprintf(buff+desc, " rate[%d] 0x%X\n",
+ i, le32_to_cpu(rs_priv->lq.rs_table[i].rate_n_flags));
+
+ return simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+}
+
+static const struct file_operations rs_sta_dbgfs_scale_table_ops = {
+ .write = rs_sta_dbgfs_scale_table_write,
+ .read = rs_sta_dbgfs_scale_table_read,
+ .open = open_file_generic,
+};
+static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file,
+ char __user *user_buf, size_t count, loff_t *ppos)
+{
+ char buff[1024];
+ int desc = 0;
+ int i, j;
+
+ struct iwl4965_rate_scale_priv *rs_priv = file->private_data;
+ for (i = 0; i < LQ_SIZE; i++) {
+ desc += sprintf(buff+desc, "%s type=%d SGI=%d FAT=%d DUP=%d\n"
+ "rate=0x%X\n",
+ rs_priv->active_tbl == i?"*":"x",
+ rs_priv->lq_info[i].lq_type,
+ rs_priv->lq_info[i].is_SGI,
+ rs_priv->lq_info[i].is_fat,
+ rs_priv->lq_info[i].is_dup,
+ rs_priv->lq_info[i].current_rate.rate_n_flags);
+ for (j = 0; j < IWL_RATE_COUNT; j++) {
+ desc += sprintf(buff+desc,
+ "counter=%d success=%d %%=%d\n",
+ rs_priv->lq_info[i].win[j].counter,
+ rs_priv->lq_info[i].win[j].success_counter,
+ rs_priv->lq_info[i].win[j].success_ratio);
+ }
+ }
+ return simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+}
+
+static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
+ .read = rs_sta_dbgfs_stats_table_read,
+ .open = open_file_generic,
+};
+
+static void rs_add_debugfs(void *priv, void *priv_sta,
+ struct dentry *dir)
+{
+ struct iwl4965_rate_scale_priv *rs_priv = priv_sta;
+ rs_priv->rs_sta_dbgfs_scale_table_file =
+ debugfs_create_file("rate_scale_table", 0600, dir,
+ rs_priv, &rs_sta_dbgfs_scale_table_ops);
+ rs_priv->rs_sta_dbgfs_stats_table_file =
+ debugfs_create_file("rate_stats_table", 0600, dir,
+ rs_priv, &rs_sta_dbgfs_stats_table_ops);
+}
+
+static void rs_remove_debugfs(void *priv, void *priv_sta)
+{
+ struct iwl4965_rate_scale_priv *rs_priv = priv_sta;
+ debugfs_remove(rs_priv->rs_sta_dbgfs_scale_table_file);
+ debugfs_remove(rs_priv->rs_sta_dbgfs_stats_table_file);
+}
+#endif
static struct rate_control_ops rs_ops = {
.module = NULL,
@@ -1970,13 +2531,17 @@ static struct rate_control_ops rs_ops = {
.free = rs_free,
.alloc_sta = rs_alloc_sta,
.free_sta = rs_free_sta,
+#ifdef CONFIG_MAC80211_DEBUGFS
+ .add_sta_debugfs = rs_add_debugfs,
+ .remove_sta_debugfs = rs_remove_debugfs,
+#endif
};
-int iwl_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
+int iwl4965_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
{
struct ieee80211_local *local = hw_to_local(hw);
- struct iwl_priv *priv = hw->priv;
- struct iwl_rate_scale_priv *rs_priv;
+ struct iwl4965_priv *priv = hw->priv;
+ struct iwl4965_rate_scale_priv *rs_priv;
struct sta_info *sta;
int count = 0, i;
u32 samples = 0, success = 0, good = 0;
@@ -2009,7 +2574,7 @@ int iwl_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
int active = rs_priv->active_tbl;
count +=
- sprintf(&buf[count], " %2dMbs: ", iwl_rates[i].ieee / 2);
+ sprintf(&buf[count], " %2dMbs: ", iwl4965_rates[i].ieee / 2);
mask = (1ULL << (IWL_RATE_MAX_WINDOW - 1));
for (j = 0; j < IWL_RATE_MAX_WINDOW; j++, mask >>= 1)
@@ -2020,7 +2585,7 @@ int iwl_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
samples += rs_priv->lq_info[active].win[i].counter;
good += rs_priv->lq_info[active].win[i].success_counter;
success += rs_priv->lq_info[active].win[i].success_counter *
- iwl_rates[i].ieee;
+ iwl4965_rates[i].ieee;
if (rs_priv->lq_info[active].win[i].stamp) {
int delta =
@@ -2034,60 +2599,45 @@ int iwl_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
} else
buf[count++] = '\n';
- j = iwl_get_prev_ieee_rate(i);
+ j = iwl4965_get_prev_ieee_rate(i);
if (j == i)
break;
i = j;
}
- sta_info_put(sta);
/* Display the average rate of all samples taken.
*
- * NOTE: We multiple # of samples by 2 since the IEEE measurement
- * added from iwl_rates is actually 2X the rate */
+ * NOTE: We multiply # of samples by 2 since the IEEE measurement
+ * added from iwl4965_rates is actually 2X the rate */
if (samples)
- count += sprintf(
- &buf[count],
+ count += sprintf(&buf[count],
"\nAverage rate is %3d.%02dMbs over last %4dms\n"
"%3d%% success (%d good packets over %d tries)\n",
success / (2 * samples), (success * 5 / samples) % 10,
max_time, good * 100 / samples, good, samples);
else
count += sprintf(&buf[count], "\nAverage rate: 0Mbs\n");
- count += sprintf(&buf[count], "\nrate scale type %d anntena %d \n",
- lq_type, antenna);
+ count += sprintf(&buf[count], "\nrate scale type %d antenna %d "
+ "active_search %d rate index %d\n", lq_type, antenna,
+ rs_priv->search_better_tbl, sta->last_txrate);
+ sta_info_put(sta);
return count;
}
-void iwl_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
+void iwl4965_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
{
- struct ieee80211_local *local = hw_to_local(hw);
- struct iwl_priv *priv = hw->priv;
- struct iwl_rate_scale_priv *rs_priv;
- struct sta_info *sta;
-
- sta = sta_info_get(local, priv->stations[sta_id].sta.sta.addr);
- if (!sta || !sta->rate_ctrl_priv) {
- if (sta) {
- sta_info_put(sta);
- IWL_DEBUG_RATE("leave - no private rate data!\n");
- } else
- IWL_DEBUG_RATE("leave - no station!\n");
- return;
- }
+ struct iwl4965_priv *priv = hw->priv;
- rs_priv = (void *)sta->rate_ctrl_priv;
- rs_priv->ready = 1;
- sta_info_put(sta);
+ priv->lq_mngr.lq_ready = 1;
}
-void iwl_rate_control_register(void)
+void iwl4965_rate_control_register(struct ieee80211_hw *hw)
{
ieee80211_rate_control_register(&rs_ops);
}
-void iwl_rate_control_unregister(void)
+void iwl4965_rate_control_unregister(struct ieee80211_hw *hw)
{
ieee80211_rate_control_unregister(&rs_ops);
}
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-rs.h b/drivers/net/wireless/iwlwifi/iwl-4965-rs.h
index b1fb0f0..31e21e2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965-rs.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-rs.h
@@ -27,14 +27,13 @@
#ifndef __iwl_4965_rs_h__
#define __iwl_4965_rs_h__
-#include "iwl-hw.h"
#include "iwl-4965.h"
-struct iwl_rate_info {
- u8 plcp;
- u8 plcp_siso;
- u8 plcp_mimo;
- u8 ieee;
+struct iwl4965_rate_info {
+ u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
+ u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */
+ u8 plcp_mimo; /* uCode API: IWL_RATE_MIMO_6M_PLCP, etc. */
+ u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
u8 prev_ieee; /* previous rate in IEEE speeds */
u8 next_ieee; /* next rate in IEEE speeds */
u8 prev_rs; /* previous rate used in rs algo */
@@ -43,6 +42,10 @@ struct iwl_rate_info {
u8 next_rs_tgg; /* next rate used in TGG rs algo */
};
+/*
+ * These serve as indexes into
+ * struct iwl4965_rate_info iwl4965_rates[IWL_RATE_COUNT];
+ */
enum {
IWL_RATE_1M_INDEX = 0,
IWL_RATE_2M_INDEX,
@@ -84,6 +87,7 @@ enum {
#define IWL_RATE_5M_MASK (1<<IWL_RATE_5M_INDEX)
#define IWL_RATE_11M_MASK (1<<IWL_RATE_11M_INDEX)
+/* 4965 uCode API values for legacy bit rates, both OFDM and CCK */
enum {
IWL_RATE_6M_PLCP = 13,
IWL_RATE_9M_PLCP = 15,
@@ -100,7 +104,7 @@ enum {
IWL_RATE_11M_PLCP = 110,
};
-/* OFDM HT rate plcp */
+/* 4965 uCode API values for OFDM high-throughput (HT) bit rates */
enum {
IWL_RATE_SISO_6M_PLCP = 0,
IWL_RATE_SISO_12M_PLCP = 1,
@@ -122,6 +126,7 @@ enum {
IWL_RATE_MIMO_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
};
+/* MAC header values for bit rates */
enum {
IWL_RATE_6M_IEEE = 12,
IWL_RATE_9M_IEEE = 18,
@@ -171,116 +176,114 @@ enum {
#define IWL_MIN_RSSI_VAL -100
#define IWL_MAX_RSSI_VAL 0
-extern const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT];
+/* These values specify how many Tx frame attempts before
+ * searching for a new modulation mode */
+#define IWL_LEGACY_FAILURE_LIMIT 160
+#define IWL_LEGACY_SUCCESS_LIMIT 480
+#define IWL_LEGACY_TABLE_COUNT 160
+
+#define IWL_NONE_LEGACY_FAILURE_LIMIT 400
+#define IWL_NONE_LEGACY_SUCCESS_LIMIT 4500
+#define IWL_NONE_LEGACY_TABLE_COUNT 1500
+
+/* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */
+#define IWL_RS_GOOD_RATIO 12800 /* 100% */
+#define IWL_RATE_SCALE_SWITCH 10880 /* 85% */
+#define IWL_RATE_HIGH_TH 10880 /* 85% */
+#define IWL_RATE_INCREASE_TH 8960 /* 70% */
+#define IWL_RATE_DECREASE_TH 1920 /* 15% */
+
+/* possible actions when in legacy mode */
+#define IWL_LEGACY_SWITCH_ANTENNA 0
+#define IWL_LEGACY_SWITCH_SISO 1
+#define IWL_LEGACY_SWITCH_MIMO 2
+
+/* possible actions when in siso mode */
+#define IWL_SISO_SWITCH_ANTENNA 0
+#define IWL_SISO_SWITCH_MIMO 1
+#define IWL_SISO_SWITCH_GI 2
-#define LQ_SIZE 2
+/* possible actions when in mimo mode */
+#define IWL_MIMO_SWITCH_ANTENNA_A 0
+#define IWL_MIMO_SWITCH_ANTENNA_B 1
+#define IWL_MIMO_SWITCH_GI 2
-enum iwl_table_type {
+#define IWL_ACTION_LIMIT 3 /* # possible actions */
+
+#define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */
+
+extern const struct iwl4965_rate_info iwl4965_rates[IWL_RATE_COUNT];
+
+enum iwl4965_table_type {
LQ_NONE,
- LQ_G,
+ LQ_G, /* legacy types */
LQ_A,
- LQ_SISO,
+ LQ_SISO, /* high-throughput types */
LQ_MIMO,
LQ_MAX,
};
-enum iwl_antenna_type {
+#define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A))
+#define is_siso(tbl) (((tbl) == LQ_SISO))
+#define is_mimo(tbl) (((tbl) == LQ_MIMO))
+#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl))
+#define is_a_band(tbl) (((tbl) == LQ_A))
+#define is_g_and(tbl) (((tbl) == LQ_G))
+
+/* 4965 has 2 antennas/chains for Tx (but 3 for Rx) */
+enum iwl4965_antenna_type {
ANT_NONE,
ANT_MAIN,
ANT_AUX,
ANT_BOTH,
};
-static inline int iwl_rate_index_from_plcp(int plcp)
+static inline u8 iwl4965_get_prev_ieee_rate(u8 rate_index)
{
- int i = 0;
-
- if (plcp & RATE_MCS_HT_MSK) {
- i = (plcp & 0xff);
-
- if (i >= IWL_RATE_MIMO_6M_PLCP)
- i = i - IWL_RATE_MIMO_6M_PLCP;
-
- i += IWL_FIRST_OFDM_RATE;
- /* skip 9M not supported in ht*/
- if (i >= IWL_RATE_9M_INDEX)
- i += 1;
- if ((i >= IWL_FIRST_OFDM_RATE) &&
- (i <= IWL_LAST_OFDM_RATE))
- return i;
- } else {
- for (i = 0; i < ARRAY_SIZE(iwl_rates); i++)
- if (iwl_rates[i].plcp == (plcp &0xFF))
- return i;
- }
- return -1;
-}
-
-static inline u8 iwl_rate_get_lowest_plcp(int rate_mask)
-{
- u8 i;
-
- for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
- i = iwl_rates[i].next_ieee) {
- if (rate_mask & (1 << i))
- return iwl_rates[i].plcp;
- }
+ u8 rate = iwl4965_rates[rate_index].prev_ieee;
- return IWL_RATE_INVALID;
-}
-
-static inline u8 iwl_get_prev_ieee_rate(u8 rate_index)
-{
- u8 rate = iwl_rates[rate_index].prev_ieee;
if (rate == IWL_RATE_INVALID)
rate = rate_index;
return rate;
}
-#if IWL == 4965
+extern int iwl4965_rate_index_from_plcp(int plcp);
+
/**
- * iwl_fill_rs_info - Fill an output text buffer with the rate representation
+ * iwl4965_fill_rs_info - Fill an output text buffer with the rate representation
*
* NOTE: This is provided as a quick mechanism for a user to visualize
- * the performance of the rate control alogirthm and is not meant to be
+ * the performance of the rate control algorithm and is not meant to be
* parsed software.
*/
-extern int iwl_fill_rs_info(struct ieee80211_hw *, char *buf, u8 sta_id);
+extern int iwl4965_fill_rs_info(struct ieee80211_hw *, char *buf, u8 sta_id);
/**
- * iwl_rate_scale_init - Initialize the rate scale table based on assoc info
+ * iwl4965_rate_scale_init - Initialize the rate scale table based on assoc info
*
- * The specific througput table used is based on the type of network
+ * The specific throughput table used is based on the type of network
* the associated with, including A, B, G, and G w/ TGG protection
*/
-extern void iwl_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
+extern void iwl4965_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
/**
- * iwl_rate_control_register - Register the rate control algorithm callbacks
+ * iwl4965_rate_control_register - Register the rate control algorithm callbacks
*
* Since the rate control algorithm is hardware specific, there is no need
* or reason to place it as a stand alone module. The driver can call
- * iwl_rate_control_register in order to register the rate control callbacks
+ * iwl4965_rate_control_register in order to register the rate control callbacks
* with the mac80211 subsystem. This should be performed prior to calling
* ieee80211_register_hw
*
*/
-extern void iwl_rate_control_register(void);
+extern void iwl4965_rate_control_register(struct ieee80211_hw *hw);
/**
- * iwl_rate_control_unregister - Unregister the rate control callbacks
+ * iwl4965_rate_control_unregister - Unregister the rate control callbacks
*
* This should be called after calling ieee80211_unregister_hw, but before
* the driver is unloaded.
*/
-extern void iwl_rate_control_unregister(void);
-#else
-static inline int iwl_fill_rs_info(struct ieee80211_hw *hw, char *buf,
- u8 sta_id)
-{ return -ENOTSUPP; }
-static inline void iwl_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id) {}
-static inline void iwl_rate_control_register(void) {}
-static inline void iwl_rate_control_unregister(void) {}
-#endif /* IWL == 4965 */
+extern void iwl4965_rate_control_unregister(struct ieee80211_hw *hw);
#endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index d13ccc9..83cef93 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -35,14 +35,13 @@
#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <net/mac80211.h>
-#include <linux/netdevice.h>
#include <linux/etherdevice.h>
-#include <linux/delay.h>
-#include "iwlwifi.h"
#include "iwl-4965.h"
#include "iwl-helpers.h"
+static void iwl4965_hw_card_show_info(struct iwl4965_priv *priv);
+
#define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
[IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
IWL_RATE_SISO_##s##M_PLCP, \
@@ -63,13 +62,13 @@
* maps to IWL_RATE_INVALID
*
*/
-const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
+const struct iwl4965_rate_info iwl4965_rates[IWL_RATE_COUNT] = {
IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */
IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */
IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */
- IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 5, 12, 5, 18), /* 11mbps */
+ IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */
IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */
- IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 5, 11, 5, 11), /* 9mbps */
+ IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */
IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */
IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */
IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */
@@ -79,22 +78,22 @@ const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */
};
-static int is_fat_channel(struct iwl_priv *priv)
+static int is_fat_channel(__le32 rxon_flags)
{
- return ((priv->active_rxon.flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) ||
- (priv->active_rxon.flags & RXON_FLG_CHANNEL_MODE_MIXED_MSK));
+ return (rxon_flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) ||
+ (rxon_flags & RXON_FLG_CHANNEL_MODE_MIXED_MSK);
}
-static u8 is_single_stream(struct iwl_priv *priv)
+static u8 is_single_stream(struct iwl4965_priv *priv)
{
-#ifdef CONFIG_IWLWIFI_HT
- if (!priv->is_ht_enabled || !priv->current_assoc_ht.is_ht ||
- (priv->active_rate_ht[1] == 0) ||
+#ifdef CONFIG_IWL4965_HT
+ if (!priv->current_ht_config.is_ht ||
+ (priv->current_ht_config.supp_mcs_set[1] == 0) ||
(priv->ps_mode == IWL_MIMO_PS_STATIC))
return 1;
#else
return 1;
-#endif /*CONFIG_IWLWIFI_HT */
+#endif /*CONFIG_IWL4965_HT */
return 0;
}
@@ -104,11 +103,11 @@ static u8 is_single_stream(struct iwl_priv *priv)
* MIMO (dual stream) requires at least 2, but works better with 3.
* This does not determine *which* chains to use, just how many.
*/
-static int iwl4965_get_rx_chain_counter(struct iwl_priv *priv,
- u8 * idle_state, u8 * rx_state)
+static int iwl4965_get_rx_chain_counter(struct iwl4965_priv *priv,
+ u8 *idle_state, u8 *rx_state)
{
u8 is_single = is_single_stream(priv);
- u8 is_cam = (priv->status & STATUS_POWER_PMI) ? 0 : 1;
+ u8 is_cam = test_bit(STATUS_POWER_PMI, &priv->status) ? 0 : 1;
/* # of Rx chains to use when expecting MIMO. */
if (is_single || (!is_cam && (priv->ps_mode == IWL_MIMO_PS_STATIC)))
@@ -133,163 +132,172 @@ static int iwl4965_get_rx_chain_counter(struct iwl_priv *priv,
return 0;
}
-int iwl_hw_rxq_stop(struct iwl_priv *priv)
+int iwl4965_hw_rxq_stop(struct iwl4965_priv *priv)
{
int rc;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl4965_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- /* stop HW */
- iwl_write_restricted(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
- rc = iwl_poll_restricted_bit(priv, FH_MEM_RSSR_RX_STATUS_REG,
+ /* stop Rx DMA */
+ iwl4965_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
+ rc = iwl4965_poll_direct_bit(priv, FH_MEM_RSSR_RX_STATUS_REG,
(1 << 24), 1000);
if (rc < 0)
IWL_ERROR("Can't stop Rx DMA.\n");
- iwl_release_restricted_access(priv);
+ iwl4965_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
-u8 iwl_hw_find_station(struct iwl_priv * priv, const u8 * bssid)
+u8 iwl4965_hw_find_station(struct iwl4965_priv *priv, const u8 *addr)
{
int i;
int start = 0;
int ret = IWL_INVALID_STATION;
unsigned long flags;
+ DECLARE_MAC_BUF(mac);
if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) ||
(priv->iw_mode == IEEE80211_IF_TYPE_AP))
start = IWL_STA_ID;
- if (is_broadcast_ether_addr(bssid))
- return IWL_BROADCAST_ID;
+ if (is_broadcast_ether_addr(addr))
+ return IWL4965_BROADCAST_ID;
spin_lock_irqsave(&priv->sta_lock, flags);
- for (i = start; i < (start + priv->num_stations); i++)
+ for (i = start; i < priv->hw_setting.max_stations; i++)
if ((priv->stations[i].used) &&
(!compare_ether_addr
- (priv->stations[i].sta.sta.addr, bssid))) {
+ (priv->stations[i].sta.sta.addr, addr))) {
ret = i;
goto out;
}
- IWL_DEBUG_ASSOC("can not find STA " MAC_FMT " total %d\n",
- MAC_ARG(bssid), priv->num_stations);
+ IWL_DEBUG_ASSOC_LIMIT("can not find STA %s total %d\n",
+ print_mac(mac, addr), priv->num_stations);
out:
spin_unlock_irqrestore(&priv->sta_lock, flags);
return ret;
}
-static int iwl4965_nic_set_pwr_src(struct iwl_priv *priv, int pwr_max)
+static int iwl4965_nic_set_pwr_src(struct iwl4965_priv *priv, int pwr_max)
{
- int rc = 0;
+ int ret;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
- if (rc) {
+ ret = iwl4965_grab_nic_access(priv);
+ if (ret) {
spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
+ return ret;
}
if (!pwr_max) {
u32 val;
- rc = pci_read_config_dword(priv->pci_dev, 0x0C8, &val);
- if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT) {
- iwl_set_bits_mask_restricted_reg(
- priv, ALM_APMG_PS_CTL,
- APMG_PS_CTRL_REG_VAL_POWER_SRC_VAUX,
- ~APMG_PS_CTRL_REG_MSK_POWER_SRC);
+ ret = pci_read_config_dword(priv->pci_dev, PCI_POWER_SOURCE,
+ &val);
- }
- } else {
- iwl_set_bits_mask_restricted_reg(
- priv, ALM_APMG_PS_CTL,
- APMG_PS_CTRL_REG_VAL_POWER_SRC_VMAIN,
- ~APMG_PS_CTRL_REG_MSK_POWER_SRC);
-
- }
+ if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT)
+ iwl4965_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
+ ~APMG_PS_CTRL_MSK_PWR_SRC);
+ } else
+ iwl4965_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
+ ~APMG_PS_CTRL_MSK_PWR_SRC);
- iwl_release_restricted_access(priv);
+ iwl4965_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
+ return ret;
}
-static int iwl4965_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
+static int iwl4965_rx_init(struct iwl4965_priv *priv, struct iwl4965_rx_queue *rxq)
{
int rc;
unsigned long flags;
+ unsigned int rb_size;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl4965_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- /* stop HW */
- iwl_write_restricted(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
+ if (iwl4965_param_amsdu_size_8K)
+ rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K;
+ else
+ rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K;
+
+ /* Stop Rx DMA */
+ iwl4965_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
- iwl_write_restricted(priv, FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0);
- iwl_write_restricted(priv, FH_RSCSR_CHNL0_RBDCB_BASE_REG,
+ /* Reset driver's Rx queue write index */
+ iwl4965_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0);
+
+ /* Tell device where to find RBD circular buffer in DRAM */
+ iwl4965_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_BASE_REG,
rxq->dma_addr >> 8);
- iwl_write_restricted(priv, FH_RSCSR_CHNL0_STTS_WPTR_REG,
+ /* Tell device where in DRAM to update its Rx status */
+ iwl4965_write_direct32(priv, FH_RSCSR_CHNL0_STTS_WPTR_REG,
(priv->hw_setting.shared_phys +
- offsetof(struct iwl_shared, val0)) >> 4);
+ offsetof(struct iwl4965_shared, val0)) >> 4);
- iwl_write_restricted(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG,
+ /* Enable Rx DMA, enable host interrupt, Rx buffer size 4k, 256 RBDs */
+ iwl4965_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG,
FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL |
FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL |
- IWL_FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K |
+ rb_size |
/*0x10 << 4 | */
(RX_QUEUE_SIZE_LOG <<
FH_RCSR_RX_CONFIG_RBDCB_SIZE_BITSHIFT));
/*
- * iwl_write32(priv,CSR_INT_COAL_REG,0);
+ * iwl4965_write32(priv,CSR_INT_COAL_REG,0);
*/
- iwl_release_restricted_access(priv);
-
+ iwl4965_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
-static int iwl4965_kw_init(struct iwl_priv *priv)
+/* Tell 4965 where to find the "keep warm" buffer */
+static int iwl4965_kw_init(struct iwl4965_priv *priv)
{
unsigned long flags;
int rc;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl4965_grab_nic_access(priv);
if (rc)
goto out;
- iwl_write_restricted(priv, IWL_FH_KW_MEM_ADDR_REG,
- (priv->kw.dma_addr >> 4));
- iwl_release_restricted_access(priv);
+ iwl4965_write_direct32(priv, IWL_FH_KW_MEM_ADDR_REG,
+ priv->kw.dma_addr >> 4);
+ iwl4965_release_nic_access(priv);
out:
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
-static int iwl4965_kw_alloc(struct iwl_priv *priv)
+static int iwl4965_kw_alloc(struct iwl4965_priv *priv)
{
struct pci_dev *dev = priv->pci_dev;
- struct iwl_kw *kw = &priv->kw;
+ struct iwl4965_kw *kw = &priv->kw;
+
kw->size = IWL4965_KW_SIZE; /* TBW need set somewhere else */
kw->v_addr = pci_alloc_consistent(dev, kw->size, &kw->dma_addr);
if (!kw->v_addr)
@@ -301,38 +309,39 @@ static int iwl4965_kw_alloc(struct iwl_priv *priv)
#define CHECK_AND_PRINT(x) ((eeprom_ch->flags & EEPROM_CHANNEL_##x) \
? # x " " : "")
-int iwl4965_set_fat_chan_info(struct iwl_priv *priv, int phymode,
- int channel,
- const struct iwl_eeprom_channel *eeprom_ch,
+/**
+ * iwl4965_set_fat_chan_info - Copy fat channel info into driver's priv.
+ *
+ * Does not set up a command, or touch hardware.
+ */
+int iwl4965_set_fat_chan_info(struct iwl4965_priv *priv, int phymode, u16 channel,
+ const struct iwl4965_eeprom_channel *eeprom_ch,
u8 fat_extension_channel)
{
- struct iwl_channel_info *ch_info;
+ struct iwl4965_channel_info *ch_info;
+
+ ch_info = (struct iwl4965_channel_info *)
+ iwl4965_get_channel_info(priv, phymode, channel);
- ch_info = (struct iwl_channel_info *)iwl_get_channel_info(priv,
- phymode,
- channel);
if (!is_channel_valid(ch_info))
return -1;
- IWL_DEBUG_INFO("FAT Ch. %d [%sGHz] %s%s%s%s%s%s(" BIT_FMT8
- " %ddBm): Ad-Hoc %ssupported\n",
- ch_info->channel,
- is_channel_a_band(ch_info) ?
- "5.2" : "2.4",
- CHECK_AND_PRINT(IBSS),
- CHECK_AND_PRINT(ACTIVE),
- CHECK_AND_PRINT(RADAR),
- CHECK_AND_PRINT(WIDE),
- CHECK_AND_PRINT(NARROW),
- CHECK_AND_PRINT(DFS),
- BIT_ARG8(eeprom_ch->flags),
- eeprom_ch->
- max_power_avg,
- ((eeprom_ch->
- flags & EEPROM_CHANNEL_IBSS)
- && !(eeprom_ch->
- flags & EEPROM_CHANNEL_RADAR))
- ? "" : "not ");
+ IWL_DEBUG_INFO("FAT Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
+ " %ddBm): Ad-Hoc %ssupported\n",
+ ch_info->channel,
+ is_channel_a_band(ch_info) ?
+ "5.2" : "2.4",
+ CHECK_AND_PRINT(IBSS),
+ CHECK_AND_PRINT(ACTIVE),
+ CHECK_AND_PRINT(RADAR),
+ CHECK_AND_PRINT(WIDE),
+ CHECK_AND_PRINT(NARROW),
+ CHECK_AND_PRINT(DFS),
+ eeprom_ch->flags,
+ eeprom_ch->max_power_avg,
+ ((eeprom_ch->flags & EEPROM_CHANNEL_IBSS)
+ && !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ?
+ "" : "not ");
ch_info->fat_eeprom = *eeprom_ch;
ch_info->fat_max_power_avg = eeprom_ch->max_power_avg;
@@ -345,15 +354,18 @@ int iwl4965_set_fat_chan_info(struct iwl_priv *priv, int phymode,
return 0;
}
-static void iwl4965_kw_free(struct iwl_priv *priv)
+/**
+ * iwl4965_kw_free - Free the "keep warm" buffer
+ */
+static void iwl4965_kw_free(struct iwl4965_priv *priv)
{
struct pci_dev *dev = priv->pci_dev;
- struct iwl_kw *kw = &priv->kw;
+ struct iwl4965_kw *kw = &priv->kw;
+
if (kw->v_addr) {
pci_free_consistent(dev, kw->size, kw->v_addr, kw->dma_addr);
memset(kw, 0, sizeof(*kw));
}
-
}
/**
@@ -363,17 +375,18 @@ static void iwl4965_kw_free(struct iwl_priv *priv)
* @param priv
* @return error code
*/
-static int iwl4965_txq_ctx_reset(struct iwl_priv *priv)
+static int iwl4965_txq_ctx_reset(struct iwl4965_priv *priv)
{
int rc = 0;
- int txq_id, num_slots;
+ int txq_id, slots_num;
unsigned long flags;
iwl4965_kw_free(priv);
- iwl_hw_txq_ctx_free(priv);
+ /* Free all tx/cmd queues and keep-warm buffer */
+ iwl4965_hw_txq_ctx_free(priv);
- /* Tx CMD queue */
+ /* Alloc keep-warm buffer */
rc = iwl4965_kw_alloc(priv);
if (rc) {
IWL_ERROR("Keep Warm allocation failed");
@@ -382,28 +395,31 @@ static int iwl4965_txq_ctx_reset(struct iwl_priv *priv)
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl4965_grab_nic_access(priv);
if (unlikely(rc)) {
IWL_ERROR("TX reset failed");
spin_unlock_irqrestore(&priv->lock, flags);
goto error_reset;
}
- iwl_write_restricted_reg(priv, SCD_TXFACT, 0);
- iwl_release_restricted_access(priv);
+ /* Turn off all Tx DMA channels */
+ iwl4965_write_prph(priv, KDR_SCD_TXFACT, 0);
+ iwl4965_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
+ /* Tell 4965 where to find the keep-warm buffer */
rc = iwl4965_kw_init(priv);
if (rc) {
IWL_ERROR("kw_init failed\n");
goto error_reset;
}
- /* Tx queue(s) */
- for (txq_id = 0; txq_id < priv->hw_setting.max_queue_number; txq_id++) {
- num_slots = (txq_id == IWL_CMD_QUEUE_NUM) ?
+ /* Alloc and init all (default 16) Tx queues,
+ * including the command queue (#4) */
+ for (txq_id = 0; txq_id < priv->hw_setting.max_txq_num; txq_id++) {
+ slots_num = (txq_id == IWL_CMD_QUEUE_NUM) ?
TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
- rc = iwl_tx_queue_init(priv, &priv->txq[txq_id], num_slots,
+ rc = iwl4965_tx_queue_init(priv, &priv->txq[txq_id], slots_num,
txq_id);
if (rc) {
IWL_ERROR("Tx %d queue init failed\n", txq_id);
@@ -414,32 +430,32 @@ static int iwl4965_txq_ctx_reset(struct iwl_priv *priv)
return rc;
error:
- iwl_hw_txq_ctx_free(priv);
+ iwl4965_hw_txq_ctx_free(priv);
error_reset:
iwl4965_kw_free(priv);
error_kw:
return rc;
}
-int iwl_hw_nic_init(struct iwl_priv *priv)
+int iwl4965_hw_nic_init(struct iwl4965_priv *priv)
{
int rc;
unsigned long flags;
- struct iwl_rx_queue *rxq = &priv->rxq;
+ struct iwl4965_rx_queue *rxq = &priv->rxq;
u8 rev_id;
u32 val;
u8 val_link;
- iwl_power_init_handle(priv);
+ iwl4965_power_init_handle(priv);
/* nic_init */
spin_lock_irqsave(&priv->lock, flags);
- iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
+ iwl4965_set_bit(priv, CSR_GIO_CHICKEN_BITS,
CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
- iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
- rc = iwl_poll_bit(priv, CSR_GP_CNTRL,
+ iwl4965_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
+ rc = iwl4965_poll_bit(priv, CSR_GP_CNTRL,
CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
if (rc < 0) {
@@ -448,26 +464,26 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
return rc;
}
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl4965_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- iwl_read_restricted_reg(priv, APMG_CLK_CTRL_REG);
+ iwl4965_read_prph(priv, APMG_CLK_CTRL_REG);
- iwl_write_restricted_reg(priv, APMG_CLK_CTRL_REG,
- APMG_CLK_REG_VAL_DMA_CLK_RQT |
- APMG_CLK_REG_VAL_BSM_CLK_RQT);
- iwl_read_restricted_reg(priv, APMG_CLK_CTRL_REG);
+ iwl4965_write_prph(priv, APMG_CLK_CTRL_REG,
+ APMG_CLK_VAL_DMA_CLK_RQT |
+ APMG_CLK_VAL_BSM_CLK_RQT);
+ iwl4965_read_prph(priv, APMG_CLK_CTRL_REG);
udelay(20);
- iwl_set_bits_restricted_reg(priv, ALM_APMG_PCIDEV_STT,
- APMG_DEV_STATE_REG_VAL_L1_ACTIVE_DISABLE);
+ iwl4965_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
+ APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
- iwl_release_restricted_access(priv);
- iwl_write32(priv, CSR_INT_COALESCING, 512 / 32);
+ iwl4965_release_nic_access(priv);
+ iwl4965_write32(priv, CSR_INT_COALESCING, 512 / 32);
spin_unlock_irqrestore(&priv->lock, flags);
/* Determine HW type */
@@ -481,15 +497,16 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
spin_lock_irqsave(&priv->lock, flags);
if ((rev_id & 0x80) == 0x80 && (rev_id & 0x7f) < 8) {
- pci_read_config_dword(priv->pci_dev, 0xe8, &val);
+ pci_read_config_dword(priv->pci_dev, PCI_REG_WUM8, &val);
/* Enable No Snoop field */
- pci_write_config_dword(priv->pci_dev, 0xe8, val & ~(1 << 11));
+ pci_write_config_dword(priv->pci_dev, PCI_REG_WUM8,
+ val & ~(1 << 11));
}
spin_unlock_irqrestore(&priv->lock, flags);
/* Read the EEPROM */
- rc = iwl_eeprom_init(priv);
+ rc = iwl4965_eeprom_init(priv);
if (rc)
return rc;
@@ -507,51 +524,53 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
/* set CSR_HW_CONFIG_REG for uCode use */
- iwl_set_bit(priv, CSR_SW_VER, CSR_HW_IF_CONFIG_REG_BIT_KEDRON_R |
+ iwl4965_set_bit(priv, CSR_SW_VER, CSR_HW_IF_CONFIG_REG_BIT_KEDRON_R |
CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl4965_grab_nic_access(priv);
if (rc < 0) {
spin_unlock_irqrestore(&priv->lock, flags);
IWL_DEBUG_INFO("Failed to init the card\n");
return rc;
}
- iwl_read_restricted_reg(priv, ALM_APMG_PS_CTL);
- iwl_set_bits_restricted_reg(priv, ALM_APMG_PS_CTL,
- APMG_PS_CTRL_REG_VAL_ALM_R_RESET_REQ);
+ iwl4965_read_prph(priv, APMG_PS_CTRL_REG);
+ iwl4965_set_bits_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_RESET_REQ);
udelay(5);
- iwl_clear_bits_restricted_reg(priv, ALM_APMG_PS_CTL,
- APMG_PS_CTRL_REG_VAL_ALM_R_RESET_REQ);
+ iwl4965_clear_bits_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_RESET_REQ);
- iwl_release_restricted_access(priv);
+ iwl4965_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
- iwl_hw_card_show_info(priv);
+ iwl4965_hw_card_show_info(priv);
/* end nic_init */
/* Allocate the RX queue, or reset if it is already allocated */
if (!rxq->bd) {
- rc = iwl_rx_queue_alloc(priv);
+ rc = iwl4965_rx_queue_alloc(priv);
if (rc) {
IWL_ERROR("Unable to initialize Rx queue\n");
return -ENOMEM;
}
} else
- iwl_rx_queue_reset(priv, rxq);
+ iwl4965_rx_queue_reset(priv, rxq);
- iwl_rx_replenish(priv, 1);
+ iwl4965_rx_replenish(priv);
iwl4965_rx_init(priv, rxq);
spin_lock_irqsave(&priv->lock, flags);
rxq->need_update = 1;
- iwl_rx_queue_update_write_ptr(priv, rxq);
+ iwl4965_rx_queue_update_write_ptr(priv, rxq);
spin_unlock_irqrestore(&priv->lock, flags);
+
+ /* Allocate and init all Tx and Command queues */
rc = iwl4965_txq_ctx_reset(priv);
if (rc)
return rc;
@@ -562,12 +581,12 @@ int iwl_hw_nic_init(struct iwl_priv *priv)
if (priv->eeprom.sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE)
IWL_DEBUG_RF_KILL("HW RF KILL supported in EEPROM.\n");
- priv->status |= STATUS_INIT;
+ set_bit(STATUS_INIT, &priv->status);
return 0;
}
-int iwl_hw_nic_stop_master(struct iwl_priv *priv)
+int iwl4965_hw_nic_stop_master(struct iwl4965_priv *priv)
{
int rc = 0;
u32 reg_val;
@@ -576,17 +595,16 @@ int iwl_hw_nic_stop_master(struct iwl_priv *priv)
spin_lock_irqsave(&priv->lock, flags);
/* set stop master bit */
- iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
+ iwl4965_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
- reg_val = iwl_read32(priv, CSR_GP_CNTRL);
+ reg_val = iwl4965_read32(priv, CSR_GP_CNTRL);
if (CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE ==
- (reg_val & CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE)) {
- IWL_DEBUG_INFO
- ("Card in power save, master is already stopped\n");
- } else {
- rc = iwl_poll_bit(priv,
- CSR_RESET,
+ (reg_val & CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE))
+ IWL_DEBUG_INFO("Card in power save, master is already "
+ "stopped\n");
+ else {
+ rc = iwl4965_poll_bit(priv, CSR_RESET,
CSR_RESET_REG_FLAG_MASTER_DISABLED,
CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
if (rc < 0) {
@@ -601,73 +619,72 @@ int iwl_hw_nic_stop_master(struct iwl_priv *priv)
return rc;
}
-void iwl_hw_txq_ctx_stop(struct iwl_priv *priv)
+/**
+ * iwl4965_hw_txq_ctx_stop - Stop all Tx DMA channels, free Tx queue memory
+ */
+void iwl4965_hw_txq_ctx_stop(struct iwl4965_priv *priv)
{
int txq_id;
unsigned long flags;
- /* reset TFD queues */
- for (txq_id = 0; txq_id < IWL4965_NUM_QUEUES; txq_id++) {
+ /* Stop each Tx DMA channel, and wait for it to be idle */
+ for (txq_id = 0; txq_id < priv->hw_setting.max_txq_num; txq_id++) {
spin_lock_irqsave(&priv->lock, flags);
- if (iwl_grab_restricted_access(priv)) {
+ if (iwl4965_grab_nic_access(priv)) {
spin_unlock_irqrestore(&priv->lock, flags);
continue;
}
- iwl_write_restricted(priv,
+ iwl4965_write_direct32(priv,
IWL_FH_TCSR_CHNL_TX_CONFIG_REG(txq_id),
0x0);
- iwl_poll_restricted_bit(priv, IWL_FH_TSSR_TX_STATUS_REG,
+ iwl4965_poll_direct_bit(priv, IWL_FH_TSSR_TX_STATUS_REG,
IWL_FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE
(txq_id), 200);
- iwl_release_restricted_access(priv);
+ iwl4965_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
}
- iwl_hw_txq_ctx_free(priv);
+ /* Deallocate memory for all Tx queues */
+ iwl4965_hw_txq_ctx_free(priv);
}
-int iwl_hw_nic_reset(struct iwl_priv *priv)
+int iwl4965_hw_nic_reset(struct iwl4965_priv *priv)
{
int rc = 0;
unsigned long flags;
- iwl_hw_nic_stop_master(priv);
+ iwl4965_hw_nic_stop_master(priv);
spin_lock_irqsave(&priv->lock, flags);
- iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
+ iwl4965_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
udelay(10);
- iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
- rc = iwl_poll_bit(priv, CSR_RESET,
+ iwl4965_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
+ rc = iwl4965_poll_bit(priv, CSR_RESET,
CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25);
udelay(10);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl4965_grab_nic_access(priv);
if (!rc) {
- iwl_write_restricted_reg(priv, ALM_APMG_CLK_EN,
- APMG_CLK_REG_VAL_DMA_CLK_RQT |
- APMG_CLK_REG_VAL_BSM_CLK_RQT);
+ iwl4965_write_prph(priv, APMG_CLK_EN_REG,
+ APMG_CLK_VAL_DMA_CLK_RQT |
+ APMG_CLK_VAL_BSM_CLK_RQT);
udelay(10);
- iwl_set_bits_restricted_reg(
- priv, ALM_APMG_PCIDEV_STT,
- APMG_DEV_STATE_REG_VAL_L1_ACTIVE_DISABLE);
+ iwl4965_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
+ APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
- iwl_release_restricted_access(priv);
+ iwl4965_release_nic_access(priv);
}
- spin_unlock_irqrestore(&priv->lock, flags);
-
- spin_lock_irqsave(&priv->lock, flags);
-
- priv->status &= ~STATUS_HCMD_ACTIVE;
+ clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
wake_up_interruptible(&priv->wait_command_queue);
spin_unlock_irqrestore(&priv->lock, flags);
@@ -694,7 +711,7 @@ int iwl_hw_nic_reset(struct iwl_priv *priv)
*/
static void iwl4965_bg_statistics_periodic(unsigned long data)
{
- struct iwl_priv *priv = (struct iwl_priv *)data;
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)data;
queue_work(priv->workqueue, &priv->statistics_work);
}
@@ -702,60 +719,60 @@ static void iwl4965_bg_statistics_periodic(unsigned long data)
/**
* iwl4965_bg_statistics_work - Send the statistics request to the hardware.
*
- * This is queued by iwl_bg_statistics_periodic.
+ * This is queued by iwl4965_bg_statistics_periodic.
*/
static void iwl4965_bg_statistics_work(void *p)
{
- struct iwl_priv *priv = p;
+ struct iwl4965_priv *priv = p;
- if (priv->status & STATUS_EXIT_PENDING)
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
mutex_lock(&priv->mutex);
- iwl_send_statistics_request(priv);
+ iwl4965_send_statistics_request(priv);
mutex_unlock(&priv->mutex);
}
#define CT_LIMIT_CONST 259
#define TM_CT_KILL_THRESHOLD 110
-void iwl4965_rf_kill_ct_config(struct iwl_priv *priv)
+void iwl4965_rf_kill_ct_config(struct iwl4965_priv *priv)
{
- struct iwl_ct_kill_config cmd;
- u32 R1 = 0, R2 = 0, R3 = 0;
- u32 temp_th = 0;
+ struct iwl4965_ct_kill_config cmd;
+ u32 R1, R2, R3;
+ u32 temp_th;
+ u32 crit_temperature;
unsigned long flags;
int rc = 0;
spin_lock_irqsave(&priv->lock, flags);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR,
CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
spin_unlock_irqrestore(&priv->lock, flags);
if (priv->statistics.flag & STATISTICS_REPLY_FLG_FAT_MODE_MSK) {
- R1 = priv->card_alive_init.therm_r1[1];
- R2 = priv->card_alive_init.therm_r2[1];
- R3 = priv->card_alive_init.therm_r3[1];
+ R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[1]);
+ R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[1]);
+ R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[1]);
} else {
- R1 = priv->card_alive_init.therm_r1[0];
- R2 = priv->card_alive_init.therm_r2[0];
- R3 = priv->card_alive_init.therm_r3[0];
+ R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[0]);
+ R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[0]);
+ R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[0]);
}
temp_th = CELSIUS_TO_KELVIN(TM_CT_KILL_THRESHOLD);
- cmd.critical_temperature_R = ((temp_th * (R3-R1))/CT_LIMIT_CONST) + R2;
- rc = iwl_send_cmd_pdu(priv,
+ crit_temperature = ((temp_th * (R3-R1))/CT_LIMIT_CONST) + R2;
+ cmd.critical_temperature_R = cpu_to_le32(crit_temperature);
+ rc = iwl4965_send_cmd_pdu(priv,
REPLY_CT_KILL_CONFIG_CMD, sizeof(cmd), &cmd);
if (rc)
IWL_ERROR("REPLY_CT_KILL_CONFIG_CMD failed\n");
else
- IWL_WARNING("REPLY_CT_KILL_CONFIG_CMD succeeded\n");
-
- return;
+ IWL_DEBUG_INFO("REPLY_CT_KILL_CONFIG_CMD succeeded\n");
}
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
+#ifdef CONFIG_IWL4965_SENSITIVITY
/* "false alarms" are signals that our DSP tries to lock onto,
* but then determines that they are either noise, or transmissions
@@ -765,7 +782,7 @@ void iwl4965_rf_kill_ct_config(struct iwl_priv *priv)
* enough to receive all of our own network traffic, but not so
* high that our DSP gets too busy trying to lock onto non-network
* activity/noise. */
-static int iwl4965_sens_energy_cck(struct iwl_priv *priv,
+static int iwl4965_sens_energy_cck(struct iwl4965_priv *priv,
u32 norm_fa,
u32 rx_enable_time,
struct statistics_general_data *rx_info)
@@ -791,7 +808,7 @@ static int iwl4965_sens_energy_cck(struct iwl_priv *priv,
u32 false_alarms = norm_fa * 200 * 1024;
u32 max_false_alarms = MAX_FA_CCK * rx_enable_time;
u32 min_false_alarms = MIN_FA_CCK * rx_enable_time;
- struct iwl_sensitivity_data *data = NULL;
+ struct iwl4965_sensitivity_data *data = NULL;
data = &(priv->sensitivity_data);
@@ -922,10 +939,8 @@ static int iwl4965_sens_energy_cck(struct iwl_priv *priv,
data->auto_corr_cck_mrc =
max((u32)AUTO_CORR_MIN_CCK_MRC, val);
- } else {
+ } else
IWL_DEBUG_CALIB("... but not changing sensitivity\n");
- }
-
/* Else we got a healthy number of false alarms, keep status quo */
} else {
@@ -945,9 +960,10 @@ static int iwl4965_sens_energy_cck(struct iwl_priv *priv,
}
/* Make sure the energy threshold does not go above the measured
- * energy of the desired Rx signals (reduced by backoff margin),
- * or else we might start missing Rx frames.
- * Lower value is higher energy, so we use max()! */
+ * energy of the desired Rx signals (reduced by backoff margin),
+ * or else we might start missing Rx frames.
+ * Lower value is higher energy, so we use max()!
+ */
data->nrg_th_cck = max(max_nrg_cck, data->nrg_th_cck);
IWL_DEBUG_CALIB("new nrg_th_cck %u\n", data->nrg_th_cck);
@@ -957,7 +973,7 @@ static int iwl4965_sens_energy_cck(struct iwl_priv *priv,
}
-static int iwl4965_sens_auto_corr_ofdm(struct iwl_priv *priv,
+static int iwl4965_sens_auto_corr_ofdm(struct iwl4965_priv *priv,
u32 norm_fa,
u32 rx_enable_time)
{
@@ -965,7 +981,7 @@ static int iwl4965_sens_auto_corr_ofdm(struct iwl_priv *priv,
u32 false_alarms = norm_fa * 200 * 1024;
u32 max_false_alarms = MAX_FA_OFDM * rx_enable_time;
u32 min_false_alarms = MIN_FA_OFDM * rx_enable_time;
- struct iwl_sensitivity_data *data = NULL;
+ struct iwl4965_sensitivity_data *data = NULL;
data = &(priv->sensitivity_data);
@@ -1015,30 +1031,29 @@ static int iwl4965_sens_auto_corr_ofdm(struct iwl_priv *priv,
max((u32)AUTO_CORR_MIN_OFDM_MRC_X1, val);
}
- else {
+ else
IWL_DEBUG_CALIB("min FA %u < norm FA %u < max FA %u OK\n",
min_false_alarms, false_alarms, max_false_alarms);
- }
return 0;
}
-static int iwl_sensitivity_callback(struct iwl_priv *priv,
- struct iwl_cmd *cmd, struct sk_buff *skb)
+static int iwl4965_sensitivity_callback(struct iwl4965_priv *priv,
+ struct iwl4965_cmd *cmd, struct sk_buff *skb)
{
/* We didn't cache the SKB; let the caller free it */
return 1;
}
/* Prepare a SENSITIVITY_CMD, send to uCode if values have changed */
-static int iwl4965_sensitivity_write(struct iwl_priv *priv, u8 flags)
+static int iwl4965_sensitivity_write(struct iwl4965_priv *priv, u8 flags)
{
int rc = 0;
- struct iwl_sensitivity_cmd cmd ;
- struct iwl_sensitivity_data *data = NULL;
- struct iwl_host_cmd cmd_out = {
+ struct iwl4965_sensitivity_cmd cmd ;
+ struct iwl4965_sensitivity_data *data = NULL;
+ struct iwl4965_host_cmd cmd_out = {
.id = SENSITIVITY_CMD,
- .len = sizeof(struct iwl_sensitivity_cmd),
+ .len = sizeof(struct iwl4965_sensitivity_cmd),
.meta.flags = flags,
.data = &cmd,
};
@@ -1048,25 +1063,30 @@ static int iwl4965_sensitivity_write(struct iwl_priv *priv, u8 flags)
memset(&cmd, 0, sizeof(cmd));
cmd.table[HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX] =
- (u16)data->auto_corr_ofdm;
+ cpu_to_le16((u16)data->auto_corr_ofdm);
cmd.table[HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX] =
- (u16)data->auto_corr_ofdm_mrc;
+ cpu_to_le16((u16)data->auto_corr_ofdm_mrc);
cmd.table[HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX] =
- (u16)data->auto_corr_ofdm_x1;
+ cpu_to_le16((u16)data->auto_corr_ofdm_x1);
cmd.table[HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX] =
- (u16)data->auto_corr_ofdm_mrc_x1;
+ cpu_to_le16((u16)data->auto_corr_ofdm_mrc_x1);
cmd.table[HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX] =
- (u16)data->auto_corr_cck;
+ cpu_to_le16((u16)data->auto_corr_cck);
cmd.table[HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX] =
- (u16)data->auto_corr_cck_mrc;
+ cpu_to_le16((u16)data->auto_corr_cck_mrc);
- cmd.table[HD_MIN_ENERGY_CCK_DET_INDEX] = (u16)data->nrg_th_cck;
- cmd.table[HD_MIN_ENERGY_OFDM_DET_INDEX] = (u16)data->nrg_th_ofdm;
+ cmd.table[HD_MIN_ENERGY_CCK_DET_INDEX] =
+ cpu_to_le16((u16)data->nrg_th_cck);
+ cmd.table[HD_MIN_ENERGY_OFDM_DET_INDEX] =
+ cpu_to_le16((u16)data->nrg_th_ofdm);
- cmd.table[HD_BARKER_CORR_TH_ADD_MIN_INDEX] = 190;
- cmd.table[HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX] = 390;
- cmd.table[HD_OFDM_ENERGY_TH_IN_INDEX] = 62;
+ cmd.table[HD_BARKER_CORR_TH_ADD_MIN_INDEX] =
+ __constant_cpu_to_le16(190);
+ cmd.table[HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX] =
+ __constant_cpu_to_le16(390);
+ cmd.table[HD_OFDM_ENERGY_TH_IN_INDEX] =
+ __constant_cpu_to_le16(62);
IWL_DEBUG_CALIB("ofdm: ac %u mrc %u x1 %u mrc_x1 %u thresh %u\n",
data->auto_corr_ofdm, data->auto_corr_ofdm_mrc,
@@ -1077,10 +1097,11 @@ static int iwl4965_sensitivity_write(struct iwl_priv *priv, u8 flags)
data->auto_corr_cck, data->auto_corr_cck_mrc,
data->nrg_th_cck);
+ /* Update uCode's "work" table, and copy it to DSP */
cmd.control = SENSITIVITY_CMD_CONTROL_WORK_TABLE;
if (flags & CMD_ASYNC)
- cmd_out.meta.u.callback = iwl_sensitivity_callback;
+ cmd_out.meta.u.callback = iwl4965_sensitivity_callback;
/* Don't send command to uCode if nothing has changed */
if (!memcmp(&cmd.table[0], &(priv->sensitivity_tbl[0]),
@@ -1093,7 +1114,7 @@ static int iwl4965_sensitivity_write(struct iwl_priv *priv, u8 flags)
memcpy(&(priv->sensitivity_tbl[0]), &(cmd.table[0]),
sizeof(u16)*HD_TABLE_SIZE);
- rc = iwl_send_cmd(priv, &cmd_out);
+ rc = iwl4965_send_cmd(priv, &cmd_out);
if (!rc) {
IWL_DEBUG_CALIB("SENSITIVITY_CMD succeeded\n");
return rc;
@@ -1102,11 +1123,11 @@ static int iwl4965_sensitivity_write(struct iwl_priv *priv, u8 flags)
return 0;
}
-void iwl4965_init_sensitivity(struct iwl_priv *priv, u8 flags, u8 force)
+void iwl4965_init_sensitivity(struct iwl4965_priv *priv, u8 flags, u8 force)
{
int rc = 0;
int i;
- struct iwl_sensitivity_data *data = NULL;
+ struct iwl4965_sensitivity_data *data = NULL;
IWL_DEBUG_CALIB("Start iwl4965_init_sensitivity\n");
@@ -1116,7 +1137,7 @@ void iwl4965_init_sensitivity(struct iwl_priv *priv, u8 flags, u8 force)
/* Clear driver's sensitivity algo data */
data = &(priv->sensitivity_data);
- memset(data, 0, sizeof(struct iwl_sensitivity_data));
+ memset(data, 0, sizeof(struct iwl4965_sensitivity_data));
data->num_in_cck_no_fa = 0;
data->nrg_curr_state = IWL_FA_TOO_MANY;
@@ -1160,21 +1181,21 @@ void iwl4965_init_sensitivity(struct iwl_priv *priv, u8 flags, u8 force)
/* Reset differential Rx gains in NIC to prepare for chain noise calibration.
* Called after every association, but this runs only once!
* ... once chain noise is calibrated the first time, it's good forever. */
-void iwl4965_chain_noise_reset(struct iwl_priv *priv)
+void iwl4965_chain_noise_reset(struct iwl4965_priv *priv)
{
- struct iwl_chain_noise_data *data = NULL;
+ struct iwl4965_chain_noise_data *data = NULL;
int rc = 0;
data = &(priv->chain_noise_data);
- if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) {
- struct iwl_calibration_cmd cmd;
+ if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl4965_is_associated(priv)) {
+ struct iwl4965_calibration_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.opCode = PHY_CALIBRATE_DIFF_GAIN_CMD;
cmd.diff_gain_a = 0;
cmd.diff_gain_b = 0;
cmd.diff_gain_c = 0;
- rc = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
+ rc = iwl4965_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
sizeof(cmd), &cmd);
msleep(4);
data->state = IWL_CHAIN_NOISE_ACCUMULATE;
@@ -1189,10 +1210,10 @@ void iwl4965_chain_noise_reset(struct iwl_priv *priv)
* 1) Which antennas are connected.
* 2) Differential rx gain settings to balance the 3 receivers.
*/
-static void iwl4965_noise_calibration(struct iwl_priv *priv,
- struct iwl_notif_statistics *stat_resp)
+static void iwl4965_noise_calibration(struct iwl4965_priv *priv,
+ struct iwl4965_notif_statistics *stat_resp)
{
- struct iwl_chain_noise_data *data = NULL;
+ struct iwl4965_chain_noise_data *data = NULL;
int rc = 0;
u32 chain_noise_a;
@@ -1218,46 +1239,48 @@ static void iwl4965_noise_calibration(struct iwl_priv *priv,
/* Accumulate just the first 20 beacons after the first association,
* then we're done forever. */
- if (data->state != IWL_CHAIN_NOISE_ACCUMULATE ) {
+ if (data->state != IWL_CHAIN_NOISE_ACCUMULATE) {
if (data->state == IWL_CHAIN_NOISE_ALIVE)
IWL_DEBUG_CALIB("Wait for noise calib reset\n");
return;
}
spin_lock_irqsave(&priv->lock, flags);
- if (rx_info->interference_data_flag != 1) {
+ if (rx_info->interference_data_flag != INTERFERENCE_DATA_AVAILABLE) {
IWL_DEBUG_CALIB(" << Interference data unavailable\n");
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
band = (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) ? 0 : 1;
- chan_num = priv->staging_rxon.channel;
+ chan_num = le16_to_cpu(priv->staging_rxon.channel);
/* Make sure we accumulate data for just the associated channel
* (even if scanning). */
- if ((chan_num != (stat_resp->flag >> 16)) ||
- ((STATISTICS_REPLY_FLG_BAND_24G_MSK ==
- (stat_resp->flag & STATISTICS_REPLY_FLG_BAND_24G_MSK)) &&
- band)) {
+ if ((chan_num != (le32_to_cpu(stat_resp->flag) >> 16)) ||
+ ((STATISTICS_REPLY_FLG_BAND_24G_MSK ==
+ (stat_resp->flag & STATISTICS_REPLY_FLG_BAND_24G_MSK)) && band)) {
IWL_DEBUG_CALIB("Stats not from chan=%d, band=%d\n",
- chan_num, band);
+ chan_num, band);
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
/* Accumulate beacon statistics values across 20 beacons */
- chain_noise_a = (rx_info->beacon_silence_rssi_a & IN_BAND_FILTER);
- chain_noise_b = (rx_info->beacon_silence_rssi_b & IN_BAND_FILTER);
- chain_noise_c = (rx_info->beacon_silence_rssi_c & IN_BAND_FILTER);
+ chain_noise_a = le32_to_cpu(rx_info->beacon_silence_rssi_a) &
+ IN_BAND_FILTER;
+ chain_noise_b = le32_to_cpu(rx_info->beacon_silence_rssi_b) &
+ IN_BAND_FILTER;
+ chain_noise_c = le32_to_cpu(rx_info->beacon_silence_rssi_c) &
+ IN_BAND_FILTER;
- chain_sig_a = (rx_info->beacon_rssi_a & IN_BAND_FILTER);
- chain_sig_b = (rx_info->beacon_rssi_b & IN_BAND_FILTER);
- chain_sig_c = (rx_info->beacon_rssi_c & IN_BAND_FILTER);
+ chain_sig_a = le32_to_cpu(rx_info->beacon_rssi_a) & IN_BAND_FILTER;
+ chain_sig_b = le32_to_cpu(rx_info->beacon_rssi_b) & IN_BAND_FILTER;
+ chain_sig_c = le32_to_cpu(rx_info->beacon_rssi_c) & IN_BAND_FILTER;
spin_unlock_irqrestore(&priv->lock, flags);
- data->beacon_count ++;
+ data->beacon_count++;
data->chain_noise_a = (chain_noise_a + data->chain_noise_a);
data->chain_noise_b = (chain_noise_b + data->chain_noise_b);
@@ -1280,12 +1303,9 @@ static void iwl4965_noise_calibration(struct iwl_priv *priv,
if (data->beacon_count == CAL_NUM_OF_BEACONS) {
/* Analyze signal for disconnected antenna */
- average_sig[0] = (data->chain_signal_a) /
- CAL_NUM_OF_BEACONS;
- average_sig[1] = (data->chain_signal_b) /
- CAL_NUM_OF_BEACONS;
- average_sig[2] = (data->chain_signal_c) /
- CAL_NUM_OF_BEACONS;
+ average_sig[0] = (data->chain_signal_a) / CAL_NUM_OF_BEACONS;
+ average_sig[1] = (data->chain_signal_b) / CAL_NUM_OF_BEACONS;
+ average_sig[2] = (data->chain_signal_c) / CAL_NUM_OF_BEACONS;
if (average_sig[0] >= average_sig[1]) {
max_average_sig = average_sig[0];
@@ -1311,26 +1331,25 @@ static void iwl4965_noise_calibration(struct iwl_priv *priv,
/* Compare signal strengths for all 3 receivers. */
for (i = 0; i < NUM_RX_CHAINS; i++) {
if (i != max_average_sig_antenna_i) {
- s32 rssiDelta = (max_average_sig -
- average_sig[i]);
+ s32 rssi_delta = (max_average_sig -
+ average_sig[i]);
/* If signal is very weak, compared with
* strongest, mark it as disconnected. */
- if (rssiDelta > MAXIMUM_ALLOWED_PATHLOSS)
+ if (rssi_delta > MAXIMUM_ALLOWED_PATHLOSS)
data->disconn_array[i] = 1;
else
active_chains |= (1 << i);
IWL_DEBUG_CALIB("i = %d rssiDelta = %d "
"disconn_array[i] = %d\n",
- i, rssiDelta,
- data->disconn_array[i]);
+ i, rssi_delta, data->disconn_array[i]);
}
}
/*If both chains A & B are disconnected -
* connect B and leave A as is */
if (data->disconn_array[CHAIN_A] &&
- data->disconn_array[CHAIN_B]) {
+ data->disconn_array[CHAIN_B]) {
data->disconn_array[CHAIN_B] = 0;
active_chains |= (1 << CHAIN_B);
IWL_DEBUG_CALIB("both A & B chains are disconnected! "
@@ -1383,9 +1402,8 @@ static void iwl4965_noise_calibration(struct iwl_priv *priv,
data->delta_gain_code[i] =
(data->delta_gain_code[i] | (1 << 2));
- } else {
+ } else
data->delta_gain_code[i] = 0;
- }
}
IWL_DEBUG_CALIB("delta_gain_codes: a %d b %d c %d\n",
data->delta_gain_code[0],
@@ -1394,7 +1412,7 @@ static void iwl4965_noise_calibration(struct iwl_priv *priv,
/* Differential gain gets sent to uCode only once */
if (!data->radio_write) {
- struct iwl_calibration_cmd cmd;
+ struct iwl4965_calibration_cmd cmd;
data->radio_write = 1;
memset(&cmd, 0, sizeof(cmd));
@@ -1402,7 +1420,7 @@ static void iwl4965_noise_calibration(struct iwl_priv *priv,
cmd.diff_gain_a = data->delta_gain_code[0];
cmd.diff_gain_b = data->delta_gain_code[1];
cmd.diff_gain_c = data->delta_gain_code[2];
- rc = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
+ rc = iwl4965_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
sizeof(cmd), &cmd);
if (rc)
IWL_DEBUG_CALIB("fail sending cmd "
@@ -1425,8 +1443,8 @@ static void iwl4965_noise_calibration(struct iwl_priv *priv,
return;
}
-static void iwl4965_sensitivity_calibration(struct iwl_priv *priv,
- struct iwl_notif_statistics *resp)
+static void iwl4965_sensitivity_calibration(struct iwl4965_priv *priv,
+ struct iwl4965_notif_statistics *resp)
{
int rc = 0;
u32 rx_enable_time;
@@ -1436,7 +1454,7 @@ static void iwl4965_sensitivity_calibration(struct iwl_priv *priv,
u32 bad_plcp_ofdm;
u32 norm_fa_ofdm;
u32 norm_fa_cck;
- struct iwl_sensitivity_data *data = NULL;
+ struct iwl4965_sensitivity_data *data = NULL;
struct statistics_rx_non_phy *rx_info = &(resp->rx.general);
struct statistics_rx *statistics = &(resp->rx);
unsigned long flags;
@@ -1444,37 +1462,37 @@ static void iwl4965_sensitivity_calibration(struct iwl_priv *priv,
data = &(priv->sensitivity_data);
- if (!iwl_is_associated(priv)) {
+ if (!iwl4965_is_associated(priv)) {
IWL_DEBUG_CALIB("<< - not associated\n");
return;
}
spin_lock_irqsave(&priv->lock, flags);
- if (rx_info->interference_data_flag != 1) {
+ if (rx_info->interference_data_flag != INTERFERENCE_DATA_AVAILABLE) {
IWL_DEBUG_CALIB("<< invalid data.\n");
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
/* Extract Statistics: */
- rx_enable_time = rx_info->channel_load;
- fa_cck = statistics->cck.false_alarm_cnt;
- fa_ofdm = statistics->ofdm.false_alarm_cnt;
- bad_plcp_cck = statistics->cck.plcp_err;
- bad_plcp_ofdm = statistics->ofdm.plcp_err;
+ rx_enable_time = le32_to_cpu(rx_info->channel_load);
+ fa_cck = le32_to_cpu(statistics->cck.false_alarm_cnt);
+ fa_ofdm = le32_to_cpu(statistics->ofdm.false_alarm_cnt);
+ bad_plcp_cck = le32_to_cpu(statistics->cck.plcp_err);
+ bad_plcp_ofdm = le32_to_cpu(statistics->ofdm.plcp_err);
statis.beacon_silence_rssi_a =
- statistics->general.beacon_silence_rssi_a;
+ le32_to_cpu(statistics->general.beacon_silence_rssi_a);
statis.beacon_silence_rssi_b =
- statistics->general.beacon_silence_rssi_b;
+ le32_to_cpu(statistics->general.beacon_silence_rssi_b);
statis.beacon_silence_rssi_c =
- statistics->general.beacon_silence_rssi_c;
+ le32_to_cpu(statistics->general.beacon_silence_rssi_c);
statis.beacon_energy_a =
- statistics->general.beacon_energy_a;
+ le32_to_cpu(statistics->general.beacon_energy_a);
statis.beacon_energy_b =
- statistics->general.beacon_energy_b;
+ le32_to_cpu(statistics->general.beacon_energy_b);
statis.beacon_energy_c =
- statistics->general.beacon_energy_c;
+ le32_to_cpu(statistics->general.beacon_energy_c);
spin_unlock_irqrestore(&priv->lock, flags);
@@ -1504,7 +1522,7 @@ static void iwl4965_sensitivity_calibration(struct iwl_priv *priv,
if (data->last_fa_cnt_ofdm > fa_ofdm)
data->last_fa_cnt_ofdm = fa_ofdm;
- else{
+ else {
fa_ofdm -= data->last_fa_cnt_ofdm;
data->last_fa_cnt_ofdm += fa_ofdm;
}
@@ -1524,22 +1542,20 @@ static void iwl4965_sensitivity_calibration(struct iwl_priv *priv,
bad_plcp_cck, fa_ofdm, bad_plcp_ofdm);
iwl4965_sens_auto_corr_ofdm(priv, norm_fa_ofdm, rx_enable_time);
-
- iwl4965_sens_energy_cck(priv, norm_fa_cck,
- rx_enable_time, &statis);
-
+ iwl4965_sens_energy_cck(priv, norm_fa_cck, rx_enable_time, &statis);
rc |= iwl4965_sensitivity_write(priv, CMD_ASYNC);
+
return;
}
static void iwl4965_bg_sensitivity_work(void *p)
{
- struct iwl_priv *priv = p;
+ struct iwl4965_priv *priv = p;
mutex_lock(&priv->mutex);
- if ((priv->status & STATUS_EXIT_PENDING) ||
- (priv->status & STATUS_SCANNING)) {
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
+ test_bit(STATUS_SCANNING, &priv->status)) {
mutex_unlock(&priv->mutex);
return;
}
@@ -1551,37 +1567,34 @@ static void iwl4965_bg_sensitivity_work(void *p)
IWL_SENS_CALIB_NEED_REINIT) {
iwl4965_init_sensitivity(priv, CMD_ASYNC, 0);
priv->sensitivity_data.state = IWL_SENS_CALIB_ALLOWED;
- } else {
+ } else
iwl4965_sensitivity_calibration(priv,
- &priv->statistics);
- }
+ &priv->statistics);
}
mutex_unlock(&priv->mutex);
return;
}
-#endif /*CONFIG_IWLWIFI_SENSITIVITY*/
+#endif /*CONFIG_IWL4965_SENSITIVITY*/
static void iwl4965_bg_txpower_work(void *p)
{
- struct iwl_priv *priv = p;
-
- mutex_lock(&priv->mutex);
+ struct iwl4965_priv *priv = p;
/* If a scan happened to start before we got here
* then just return; the statistics notification will
* kick off another scheduled work to compensate for
* any temperature delta we missed here. */
- if ((priv->status & STATUS_EXIT_PENDING) ||
- priv->status & STATUS_SCANNING) {
- mutex_unlock(&priv->mutex);
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
+ test_bit(STATUS_SCANNING, &priv->status))
return;
- }
+
+ mutex_lock(&priv->mutex);
/* Regardless of if we are assocaited, we must reconfigure the
* TX power since frames can be sent on non-radar channels while
* not associated */
- iwl_hw_reg_send_txpower(priv);
+ iwl4965_hw_reg_send_txpower(priv);
/* Update last_temperature to keep is_calib_needed from running
* when it isn't needed... */
@@ -1590,43 +1603,68 @@ static void iwl4965_bg_txpower_work(void *p)
mutex_unlock(&priv->mutex);
}
-static void iwl4965_set_wr_ptrs(struct iwl_priv *priv, int txq_id, u32 index)
+/*
+ * Acquire priv->lock before calling this function !
+ */
+static void iwl4965_set_wr_ptrs(struct iwl4965_priv *priv, int txq_id, u32 index)
{
- iwl_write_restricted(priv, HBUS_TARG_WRPTR,
+ iwl4965_write_direct32(priv, HBUS_TARG_WRPTR,
(index & 0xff) | (txq_id << 8));
- iwl_write_restricted_reg(priv, SCD_QUEUE_RDPTR(txq_id), index);
+ iwl4965_write_prph(priv, KDR_SCD_QUEUE_RDPTR(txq_id), index);
}
-static void iwl4965_tx_queue_set_status(struct iwl_priv *priv,
- struct iwl_tx_queue *txq, int tx_fifo_id,
- int sched_retry, int active)
+/**
+ * iwl4965_tx_queue_set_status - (optionally) start Tx/Cmd queue
+ * @tx_fifo_id: Tx DMA/FIFO channel (range 0-7) that the queue will feed
+ * @scd_retry: (1) Indicates queue will be used in aggregation mode
+ *
+ * NOTE: Acquire priv->lock before calling this function !
+ */
+static void iwl4965_tx_queue_set_status(struct iwl4965_priv *priv,
+ struct iwl4965_tx_queue *txq,
+ int tx_fifo_id, int scd_retry)
{
int txq_id = txq->q.id;
- txq->sched_retry = sched_retry;
- txq->sched_retry = active;
+ /* Find out whether to activate Tx queue */
+ int active = test_bit(txq_id, &priv->txq_ctx_active_msk)?1:0;
+
+ /* Set up and activate */
+ iwl4965_write_prph(priv, KDR_SCD_QUEUE_STATUS_BITS(txq_id),
+ (active << SCD_QUEUE_STTS_REG_POS_ACTIVE) |
+ (tx_fifo_id << SCD_QUEUE_STTS_REG_POS_TXF) |
+ (scd_retry << SCD_QUEUE_STTS_REG_POS_WSL) |
+ (scd_retry << SCD_QUEUE_STTS_REG_POS_SCD_ACK) |
+ SCD_QUEUE_STTS_REG_MSK);
- iwl_write_restricted_reg(priv,
- SCD_QUEUE_STATUS_BITS(txq_id),
- (active << SCD_QUEUE_STTS_REG_POS_ACTIVE)|
- (tx_fifo_id << SCD_QUEUE_STTS_REG_POS_TXF)|
- (sched_retry << SCD_QUEUE_STTS_REG_POS_WSL)|
- (sched_retry << SCD_QUEUE_STTS_REG_POS_SCD_ACK)|
- SCD_QUEUE_STTS_REG_MSK);
+ txq->sched_retry = scd_retry;
IWL_DEBUG_INFO("%s %s Queue %d on AC %d\n",
- (active?"Activete":"Deactivate"),
- sched_retry?"BA":"AC", txq_id, tx_fifo_id);
+ active ? "Activate" : "Deactivate",
+ scd_retry ? "BA" : "AC", txq_id, tx_fifo_id);
}
-
-static const u16 default_ac_to_tx_fifo[] = {
- IWL_TX_QUEUE_AC1, IWL_TX_QUEUE_AC0,
- IWL_TX_QUEUE_AC2, IWL_TX_QUEUE_AC3,
- IWL_TX_QUEUE_HCCA_1, IWL_TX_QUEUE_HCCA_2
+static const u16 default_queue_to_tx_fifo[] = {
+ IWL_TX_FIFO_AC3,
+ IWL_TX_FIFO_AC2,
+ IWL_TX_FIFO_AC1,
+ IWL_TX_FIFO_AC0,
+ IWL_CMD_FIFO_NUM,
+ IWL_TX_FIFO_HCCA_1,
+ IWL_TX_FIFO_HCCA_2
};
-int iwl4965_alive_notify(struct iwl_priv *priv)
+static inline void iwl4965_txq_ctx_activate(struct iwl4965_priv *priv, int txq_id)
+{
+ set_bit(txq_id, &priv->txq_ctx_active_msk);
+}
+
+static inline void iwl4965_txq_ctx_deactivate(struct iwl4965_priv *priv, int txq_id)
+{
+ clear_bit(txq_id, &priv->txq_ctx_active_msk);
+}
+
+int iwl4965_alive_notify(struct iwl4965_priv *priv)
{
u32 a;
int i = 0;
@@ -1635,49 +1673,55 @@ int iwl4965_alive_notify(struct iwl_priv *priv)
spin_lock_irqsave(&priv->lock, flags);
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
+#ifdef CONFIG_IWL4965_SENSITIVITY
memset(&(priv->sensitivity_data), 0,
- sizeof(struct iwl_sensitivity_data));
+ sizeof(struct iwl4965_sensitivity_data));
memset(&(priv->chain_noise_data), 0,
- sizeof(struct iwl_chain_noise_data));
+ sizeof(struct iwl4965_chain_noise_data));
for (i = 0; i < NUM_RX_CHAINS; i++)
priv->chain_noise_data.delta_gain_code[i] =
CHAIN_NOISE_DELTA_GAIN_INIT_VAL;
-#endif /* CONFIG_IWLWIFI_SENSITIVITY*/
- rc = iwl_grab_restricted_access(priv);
+#endif /* CONFIG_IWL4965_SENSITIVITY*/
+ rc = iwl4965_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- priv->scd_base_addr = iwl_read_restricted_reg(priv, SCD_SRAM_BASE_ADDR);
+ /* Clear 4965's internal Tx Scheduler data base */
+ priv->scd_base_addr = iwl4965_read_prph(priv, KDR_SCD_SRAM_BASE_ADDR);
a = priv->scd_base_addr + SCD_CONTEXT_DATA_OFFSET;
for (; a < priv->scd_base_addr + SCD_TX_STTS_BITMAP_OFFSET; a += 4)
- iwl_write_restricted_mem(priv, a, 0);
+ iwl4965_write_targ_mem(priv, a, 0);
for (; a < priv->scd_base_addr + SCD_TRANSLATE_TBL_OFFSET; a += 4)
- iwl_write_restricted_mem(priv, a, 0);
- for (;
- a < sizeof(u16) * IWL4965_NUM_QUEUES;
- a += 4)
- iwl_write_restricted_mem(priv, a, 0);
-
- iwl_write_restricted_reg(priv, SCD_DRAM_BASE_ADDR,
- (priv->hw_setting.shared_phys +
- offsetof(struct iwl_shared,
- queues_byte_cnt_tbls))
- >> 10);
- iwl_write_restricted_reg(priv, SCD_QUEUECHAIN_SEL, 0);
-
- /* initiate the queues */
- for (i = 0; i < IWL4965_NUM_QUEUES; i++) {
- iwl_write_restricted_reg(priv, SCD_QUEUE_RDPTR(i), 0);
- iwl_write_restricted(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
- iwl_write_restricted_mem(priv, priv->scd_base_addr +
+ iwl4965_write_targ_mem(priv, a, 0);
+ for (; a < sizeof(u16) * priv->hw_setting.max_txq_num; a += 4)
+ iwl4965_write_targ_mem(priv, a, 0);
+
+ /* Tel 4965 where to find Tx byte count tables */
+ iwl4965_write_prph(priv, KDR_SCD_DRAM_BASE_ADDR,
+ (priv->hw_setting.shared_phys +
+ offsetof(struct iwl4965_shared, queues_byte_cnt_tbls)) >> 10);
+
+ /* Disable chain mode for all queues */
+ iwl4965_write_prph(priv, KDR_SCD_QUEUECHAIN_SEL, 0);
+
+ /* Initialize each Tx queue (including the command queue) */
+ for (i = 0; i < priv->hw_setting.max_txq_num; i++) {
+
+ /* TFD circular buffer read/write indexes */
+ iwl4965_write_prph(priv, KDR_SCD_QUEUE_RDPTR(i), 0);
+ iwl4965_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
+
+ /* Max Tx Window size for Scheduler-ACK mode */
+ iwl4965_write_targ_mem(priv, priv->scd_base_addr +
SCD_CONTEXT_QUEUE_OFFSET(i),
(SCD_WIN_SIZE <<
SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) &
SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK);
- iwl_write_restricted_mem(priv, priv->scd_base_addr +
+
+ /* Frame limit */
+ iwl4965_write_targ_mem(priv, priv->scd_base_addr +
SCD_CONTEXT_QUEUE_OFFSET(i) +
sizeof(u32),
(SCD_FRAME_LIMIT <<
@@ -1685,85 +1729,98 @@ int iwl4965_alive_notify(struct iwl_priv *priv)
SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK);
}
- iwl_write_restricted_reg(priv, SCD_INTERRUPT_MASK,
- (1 << IWL4965_NUM_QUEUES) - 1);
+ iwl4965_write_prph(priv, KDR_SCD_INTERRUPT_MASK,
+ (1 << priv->hw_setting.max_txq_num) - 1);
- iwl_write_restricted_reg(priv, SCD_TXFACT,
+ /* Activate all Tx DMA/FIFO channels */
+ iwl4965_write_prph(priv, KDR_SCD_TXFACT,
SCD_TXFACT_REG_TXFIFO_MASK(0, 7));
iwl4965_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0);
- iwl4965_tx_queue_set_status(priv, &priv->txq[IWL_CMD_QUEUE_NUM],
- IWL_CMD_FIFO_NUM, 0, 1);
- /* map qos queues to fifos one-to-one */
- for (i = 0; i < GLOBAL_ARRAY_SIZE(default_ac_to_tx_fifo); i++) {
- int ac = default_ac_to_tx_fifo[i];
- iwl4965_tx_queue_set_status(priv, &priv->txq[ac], ac, 0, 1);
+
+ /* Map each Tx/cmd queue to its corresponding fifo */
+ for (i = 0; i < ARRAY_SIZE(default_queue_to_tx_fifo); i++) {
+ int ac = default_queue_to_tx_fifo[i];
+ iwl4965_txq_ctx_activate(priv, i);
+ iwl4965_tx_queue_set_status(priv, &priv->txq[i], ac, 0);
}
- iwl_release_restricted_access(priv);
+ iwl4965_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
-int iwl_hw_set_hw_setting(struct iwl_priv *priv)
+/**
+ * iwl4965_hw_set_hw_setting
+ *
+ * Called when initializing driver
+ */
+int iwl4965_hw_set_hw_setting(struct iwl4965_priv *priv)
{
+ /* Allocate area for Tx byte count tables and Rx queue status */
priv->hw_setting.shared_virt =
pci_alloc_consistent(priv->pci_dev,
- sizeof(struct iwl_shared),
+ sizeof(struct iwl4965_shared),
&priv->hw_setting.shared_phys);
if (!priv->hw_setting.shared_virt)
return -1;
- memset(priv->hw_setting.shared_virt, 0, sizeof(struct iwl_shared));
+ memset(priv->hw_setting.shared_virt, 0, sizeof(struct iwl4965_shared));
- priv->hw_setting.max_queue_number = IWL4965_NUM_QUEUES;
+ priv->hw_setting.max_txq_num = iwl4965_param_queues_num;
priv->hw_setting.ac_queue_count = AC_NUM;
-
- priv->hw_setting.cck_flag = RATE_MCS_CCK_MSK;
- priv->hw_setting.tx_cmd_len = sizeof(struct iwl_tx_cmd);
+ priv->hw_setting.tx_cmd_len = sizeof(struct iwl4965_tx_cmd);
priv->hw_setting.max_rxq_size = RX_QUEUE_SIZE;
priv->hw_setting.max_rxq_log = RX_QUEUE_SIZE_LOG;
+ if (iwl4965_param_amsdu_size_8K)
+ priv->hw_setting.rx_buf_size = IWL_RX_BUF_SIZE_8K;
+ else
+ priv->hw_setting.rx_buf_size = IWL_RX_BUF_SIZE_4K;
+ priv->hw_setting.max_pkt_size = priv->hw_setting.rx_buf_size - 256;
+ priv->hw_setting.max_stations = IWL4965_STATION_COUNT;
+ priv->hw_setting.bcast_sta_id = IWL4965_BROADCAST_ID;
return 0;
}
/**
- * iwl_hw_txq_ctx_free - Free TXQ Context
+ * iwl4965_hw_txq_ctx_free - Free TXQ Context
*
* Destroy all TX DMA queues and structures
*/
-void iwl_hw_txq_ctx_free(struct iwl_priv *priv)
+void iwl4965_hw_txq_ctx_free(struct iwl4965_priv *priv)
{
int txq_id;
/* Tx queues */
- for (txq_id = 0; txq_id < priv->hw_setting.max_queue_number; txq_id++)
- iwl_tx_queue_free(priv, &priv->txq[txq_id]);
+ for (txq_id = 0; txq_id < priv->hw_setting.max_txq_num; txq_id++)
+ iwl4965_tx_queue_free(priv, &priv->txq[txq_id]);
+ /* Keep-warm buffer */
iwl4965_kw_free(priv);
}
/**
- * iwl_hw_tx_queue_free_tfd - Free one TFD, those at index [txq->q.last_used]
+ * iwl4965_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
*
- * Does NOT advance any indexes
+ * Does NOT advance any TFD circular buffer read/write indexes
+ * Does NOT free the TFD itself (which is within circular buffer)
*/
-int iwl_hw_tx_queue_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
+int iwl4965_hw_txq_free_tfd(struct iwl4965_priv *priv, struct iwl4965_tx_queue *txq)
{
- struct iwl_tfd_frame *bd_tmp = (struct iwl_tfd_frame *)&txq->bd[0];
- struct iwl_tfd_frame *bd = &bd_tmp[txq->q.last_used];
+ struct iwl4965_tfd_frame *bd_tmp = (struct iwl4965_tfd_frame *)&txq->bd[0];
+ struct iwl4965_tfd_frame *bd = &bd_tmp[txq->q.read_ptr];
struct pci_dev *dev = priv->pci_dev;
int i;
int counter = 0;
int index, is_odd;
- /* classify bd */
+ /* Host command buffers stay mapped in memory, nothing to clean */
if (txq->q.id == IWL_CMD_QUEUE_NUM)
- /* nothing to cleanup after for host commands */
return 0;
- /* sanity check */
+ /* Sanity check on number of chunks */
counter = IWL_GET_BITS(*bd, num_tbs);
if (counter > MAX_NUM_OF_TBS) {
IWL_ERROR("Too many chunks: %i\n", counter);
@@ -1771,11 +1828,11 @@ int iwl_hw_tx_queue_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
return 0;
}
- /* unmap chunks if any */
-
+ /* Unmap chunks, if any.
+ * TFD info for odd chunks is different format than for even chunks. */
for (i = 0; i < counter; i++) {
index = i / 2;
- is_odd = i % 2;
+ is_odd = i & 0x1;
if (is_odd)
pci_unmap_single(
@@ -1792,37 +1849,24 @@ int iwl_hw_tx_queue_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
IWL_GET_BITS(bd->pa[index], tb1_len),
PCI_DMA_TODEVICE);
- if (txq->txb[txq->q.last_used].skb[i]) {
- struct sk_buff *skb = txq->txb[txq->q.last_used].skb[i];
+ /* Free SKB, if any, for this chunk */
+ if (txq->txb[txq->q.read_ptr].skb[i]) {
+ struct sk_buff *skb = txq->txb[txq->q.read_ptr].skb[i];
dev_kfree_skb(skb);
- txq->txb[txq->q.last_used].skb[i] = NULL;
+ txq->txb[txq->q.read_ptr].skb[i] = NULL;
}
}
return 0;
}
-int iwl_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
+int iwl4965_hw_reg_set_txpower(struct iwl4965_priv *priv, s8 power)
{
- IWL_ERROR("TODO: Implement iwl_hw_reg_set_txpower!\n");
+ IWL_ERROR("TODO: Implement iwl4965_hw_reg_set_txpower!\n");
return -EINVAL;
}
-#define TX_POWER_IWL_ILLEGAL_VDET -100000
-#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
-#define TX_POWER_IWL_CLOSED_LOOP_MIN_POWER 18
-#define TX_POWER_IWL_CLOSED_LOOP_MAX_POWER 34
-#define TX_POWER_IWL_VDET_SLOPE_BELOW_NOMINAL 17
-#define TX_POWER_IWL_VDET_SLOPE_ABOVE_NOMINAL 20
-#define TX_POWER_IWL_NOMINAL_POWER 26
-#define TX_POWER_IWL_CLOSED_LOOP_ITERATION_LIMIT 1
-#define TX_POWER_IWL_VOLTAGE_CODES_PER_03V 7
-#define TX_POWER_IWL_DEGREES_PER_VDET_CODE 11
-#define IWL_TX_POWER_MAX_NUM_PA_MEASUREMENTS 1
-#define IWL_TX_POWER_CCK_COMPENSATION_B_STEP (9)
-#define IWL_TX_POWER_CCK_COMPENSATION_C_STEP (5)
-
-static s32 iwl4965_math_div_round(s32 num, s32 denom, s32 * res)
+static s32 iwl4965_math_div_round(s32 num, s32 denom, s32 *res)
{
s32 sign = 1;
@@ -1840,8 +1884,19 @@ static s32 iwl4965_math_div_round(s32 num, s32 denom, s32 * res)
return 1;
}
-static s32 iwl4965_get_voltage_compensation(u32 eeprom_voltage,
- u32 current_voltage)
+/**
+ * iwl4965_get_voltage_compensation - Power supply voltage comp for txpower
+ *
+ * Determines power supply voltage compensation for txpower calculations.
+ * Returns number of 1/2-dB steps to subtract from gain table index,
+ * to compensate for difference between power supply voltage during
+ * factory measurements, vs. current power supply voltage.
+ *
+ * Voltage indication is higher for lower voltage.
+ * Lower voltage requires more gain (lower gain table index).
+ */
+static s32 iwl4965_get_voltage_compensation(s32 eeprom_voltage,
+ s32 current_voltage)
{
s32 comp = 0;
@@ -1860,35 +1915,20 @@ static s32 iwl4965_get_voltage_compensation(u32 eeprom_voltage,
return comp;
}
-static const struct iwl_channel_info *iwl4965_get_current_txpower_info(
- struct iwl_priv *priv, u8 *band, u8 *channel, u8 *is_fat,
- u8 *ctrl_chan_high)
+static const struct iwl4965_channel_info *
+iwl4965_get_channel_txpower_info(struct iwl4965_priv *priv, u8 phymode, u16 channel)
{
- const struct iwl_channel_info *ch_info;
-
- *ctrl_chan_high = 0;
- *channel = priv->active_rxon.channel;
- *band = ((priv->phymode == MODE_IEEE80211B) ||
- (priv->phymode == MODE_IEEE80211G) ||
- (priv->phymode == MODE_ATHEROS_TURBOG)) ? 1 : 0;
+ const struct iwl4965_channel_info *ch_info;
- ch_info = iwl_get_channel_info(priv, priv->phymode,
- priv->active_rxon.channel);
+ ch_info = iwl4965_get_channel_info(priv, phymode, channel);
if (!is_channel_valid(ch_info))
return NULL;
- *is_fat = is_fat_channel(priv);
-
- if (*is_fat)
- if (priv->active_rxon.flags &
- RXON_FLG_CONTROL_CHANNEL_LOC_HIGH_MSK)
- *ctrl_chan_high = 1;
-
return ch_info;
}
-static s32 iwl4965_get_txatten_group_from_channel(u32 channel)
+static s32 iwl4965_get_tx_atten_grp(u16 channel)
{
if (channel >= CALIB_IWL_TX_ATTEN_GR5_FCH &&
channel <= CALIB_IWL_TX_ATTEN_GR5_LCH)
@@ -1914,24 +1954,20 @@ static s32 iwl4965_get_txatten_group_from_channel(u32 channel)
return -1;
}
-static u32 iwl4965_get_sub_band(const struct iwl_priv *priv, u32 channel)
+static u32 iwl4965_get_sub_band(const struct iwl4965_priv *priv, u32 channel)
{
- s32 sub_band = -1;
-
- for (sub_band = 0; sub_band < EEPROM_TX_POWER_BANDS; sub_band++) {
+ s32 b = -1;
- if (priv->eeprom.calib_info.band_info_tbl[sub_band].ch_from ==
- 0)
+ for (b = 0; b < EEPROM_TX_POWER_BANDS; b++) {
+ if (priv->eeprom.calib_info.band_info[b].ch_from == 0)
continue;
- if ((channel >=
- priv->eeprom.calib_info.band_info_tbl[sub_band].ch_from)
- && (channel <=
- priv->eeprom.calib_info.band_info_tbl[sub_band].ch_to))
+ if ((channel >= priv->eeprom.calib_info.band_info[b].ch_from)
+ && (channel <= priv->eeprom.calib_info.band_info[b].ch_to))
break;
}
- return sub_band;
+ return b;
}
static s32 iwl4965_interpolate_value(s32 x, s32 x1, s32 y1, s32 x2, s32 y2)
@@ -1946,16 +1982,23 @@ static s32 iwl4965_interpolate_value(s32 x, s32 x1, s32 y1, s32 x2, s32 y2)
}
}
-static int iwl4965_interpolate_chan(
- struct iwl_priv *priv, u32 channel,
- struct iwl_eeprom_calib_channel_info *chan_info)
+/**
+ * iwl4965_interpolate_chan - Interpolate factory measurements for one channel
+ *
+ * Interpolates factory measurements from the two sample channels within a
+ * sub-band, to apply to channel of interest. Interpolation is proportional to
+ * differences in channel frequencies, which is proportional to differences
+ * in channel number.
+ */
+static int iwl4965_interpolate_chan(struct iwl4965_priv *priv, u32 channel,
+ struct iwl4965_eeprom_calib_ch_info *chan_info)
{
s32 s = -1;
u32 c;
u32 m;
- const struct iwl_eeprom_calib_measurement *m1;
- const struct iwl_eeprom_calib_measurement *m2;
- struct iwl_eeprom_calib_measurement *omeas;
+ const struct iwl4965_eeprom_calib_measure *m1;
+ const struct iwl4965_eeprom_calib_measure *m2;
+ struct iwl4965_eeprom_calib_measure *omeas;
u32 ch_i1;
u32 ch_i2;
@@ -1965,8 +2008,8 @@ static int iwl4965_interpolate_chan(
return -1;
}
- ch_i1 = priv->eeprom.calib_info.band_info_tbl[s].ch1.ch_num;
- ch_i2 = priv->eeprom.calib_info.band_info_tbl[s].ch2.ch_num;
+ ch_i1 = priv->eeprom.calib_info.band_info[s].ch1.ch_num;
+ ch_i2 = priv->eeprom.calib_info.band_info[s].ch2.ch_num;
chan_info->ch_num = (u8) channel;
IWL_DEBUG_TXPOWER("channel %d subband %d factory cal ch %d & %d\n",
@@ -1974,9 +2017,9 @@ static int iwl4965_interpolate_chan(
for (c = 0; c < EEPROM_TX_POWER_TX_CHAINS; c++) {
for (m = 0; m < EEPROM_TX_POWER_MEASUREMENTS; m++) {
- m1 = &(priv->eeprom.calib_info.band_info_tbl[s].ch1.
+ m1 = &(priv->eeprom.calib_info.band_info[s].ch1.
measurements[c][m]);
- m2 = &(priv->eeprom.calib_info.band_info_tbl[s].ch2.
+ m2 = &(priv->eeprom.calib_info.band_info[s].ch2.
measurements[c][m]);
omeas = &(chan_info->measurements[c][m]);
@@ -2030,7 +2073,7 @@ static s32 back_off_table[] = {
/* Thermal compensation values for txpower for various frequency ranges ...
* ratios from 3:1 to 4.5:1 of degrees (Celsius) per half-dB gain adjust */
-static struct iwl_txpower_comp_entry {
+static struct iwl4965_txpower_comp_entry {
s32 degrees_per_05db_a;
s32 degrees_per_05db_a_denom;
} tx_power_cmp_tble[CALIB_CH_GROUP_MAX] = {
@@ -2044,7 +2087,7 @@ static struct iwl_txpower_comp_entry {
static s32 get_min_power_index(s32 rate_power_index, u32 band)
{
if (!band) {
- if ((rate_power_index % 8) <= 4)
+ if ((rate_power_index & 7) <= 4)
return MIN_TX_GAIN_INDEX_52GHZ_EXT;
}
return MIN_TX_GAIN_INDEX;
@@ -2280,16 +2323,10 @@ static const struct gain_entry gain_table[2][108] = {
}
};
-/**
- * iwl_hw_reg_send_txpower - Configure the TXPOWER level user limit
- *
- * Uses the active RXON for channel, band, and characteristics (fat, high)
- * The power limit is taken from priv->user_txpower_limit.
- */
-int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
+static int iwl4965_fill_txpower_tbl(struct iwl4965_priv *priv, u8 band, u16 channel,
+ u8 is_fat, u8 ctrl_chan_high,
+ struct iwl4965_tx_power_db *tx_power_tbl)
{
- u16 radio_gain;
- u16 dsp_atten;
u8 saturation_power;
s32 target_power;
s32 user_target_power;
@@ -2297,15 +2334,14 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
s32 current_temp;
s32 reg_limit;
s32 current_regulatory;
- s32 txatten_group = CALIB_CH_GROUP_MAX;
- int i = 0;
+ s32 txatten_grp = CALIB_CH_GROUP_MAX;
+ int i;
int c;
- struct iwl_tx_power_table_cmd cmd = { 0 };
- const struct iwl_channel_info *ch_info = NULL;
- struct iwl_eeprom_calib_channel_info ch_eeprom_info;
- const struct iwl_eeprom_calib_measurement *measurement;
- int rc = 0;
+ const struct iwl4965_channel_info *ch_info = NULL;
+ struct iwl4965_eeprom_calib_ch_info ch_eeprom_info;
+ const struct iwl4965_eeprom_calib_measure *measurement;
s16 voltage;
+ s32 init_voltage;
s32 voltage_compensation;
s32 degrees_per_05db_num;
s32 degrees_per_05db_denom;
@@ -2314,18 +2350,6 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
s32 factory_gain_index[2];
s32 factory_actual_pwr[2];
s32 power_index;
- u8 band = 0;
- u8 channel = 0;
- u8 is_fat = 0;
- u8 ctrl_chan_high = 0;
-
- if (priv->status & STATUS_SCANNING) {
- /* If this gets hit a lot, switch it to a BUG() and catch
- * the stack trace to find out who is calling this during
- * a scan. */
- IWL_WARNING("TX Power requested while scanning!\n");
- return -EAGAIN;
- }
/* Sanity check requested level (dBm) */
if (priv->user_txpower_limit < IWL_TX_POWER_TARGET_POWER_MIN) {
@@ -2345,27 +2369,22 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
/* Get current (RXON) channel, band, width */
ch_info =
- iwl4965_get_current_txpower_info(priv, &band, &channel, &is_fat,
- &ctrl_chan_high);
+ iwl4965_get_channel_txpower_info(priv, priv->phymode, channel);
IWL_DEBUG_TXPOWER("chan %d band %d is_fat %d\n", channel, band,
is_fat);
if (!ch_info)
- return -1;
-
- cmd.band = band;
- cmd.channel = channel;
- cmd.channel_normal_width = 0;
+ return -EINVAL;
/* get txatten group, used to select 1) thermal txpower adjustment
* and 2) mimo txpower balance between Tx chains. */
- txatten_group = iwl4965_get_txatten_group_from_channel(channel);
- if (txatten_group < 0)
- return -1;
+ txatten_grp = iwl4965_get_tx_atten_grp(channel);
+ if (txatten_grp < 0)
+ return -EINVAL;
IWL_DEBUG_TXPOWER("channel %d belongs to txatten group %d\n",
- channel, txatten_group);
+ channel, txatten_grp);
if (is_fat) {
if (ctrl_chan_high)
@@ -2409,13 +2428,13 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
iwl4965_interpolate_chan(priv, channel, &ch_eeprom_info);
/* calculate tx gain adjustment based on power supply voltage */
- voltage = (s16)le16_to_cpu(priv->eeprom.calib_info.voltage);
+ voltage = priv->eeprom.calib_info.voltage;
+ init_voltage = (s32)le32_to_cpu(priv->card_alive_init.voltage);
voltage_compensation =
- iwl4965_get_voltage_compensation(voltage,
- priv->card_alive_init.voltage);
+ iwl4965_get_voltage_compensation(voltage, init_voltage);
IWL_DEBUG_TXPOWER("curr volt %d eeprom volt %d volt comp %d\n",
- priv->card_alive_init.voltage,
+ init_voltage,
voltage, voltage_compensation);
/* get current temperature (Celsius) */
@@ -2423,18 +2442,12 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
current_temp = min(priv->temperature, IWL_TX_POWER_TEMPERATURE_MAX);
current_temp = KELVIN_TO_CELSIUS(current_temp);
- if (-40 > current_temp) {
- IWL_WARNING("Invalid temperature %d, can't calculate "
- "txpower\n", current_temp);
- return -EINVAL;
- }
-
/* select thermal txpower adjustment params, based on channel group
* (same frequency group used for mimo txatten adjustment) */
degrees_per_05db_num =
- tx_power_cmp_tble[txatten_group].degrees_per_05db_a;
+ tx_power_cmp_tble[txatten_grp].degrees_per_05db_a;
degrees_per_05db_denom =
- tx_power_cmp_tble[txatten_group].degrees_per_05db_a_denom;
+ tx_power_cmp_tble[txatten_grp].degrees_per_05db_a_denom;
/* get per-chain txpower values from factory measurements */
for (c = 0; c < 2; c++) {
@@ -2463,9 +2476,9 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
}
/* for each of 33 bit-rates (including 1 for CCK) */
- for (i = 0; i <= POWER_TABLE_NUM_HT_OFDM_ENTRIES; i++) {
+ for (i = 0; i < POWER_TABLE_NUM_ENTRIES; i++) {
u8 is_mimo_rate;
- union tx_power_dual_stream_u *tx_power;
+ union iwl4965_tx_power_dual_stream tx_power;
/* for mimo, reduce each chain's txpower by half
* (3dB, 6 steps), so total output power is regulatory
@@ -2501,8 +2514,8 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
if (is_mimo_rate)
atten_value =
- priv->card_alive_init.
- tx_atten[txatten_group][c];
+ (s32)le32_to_cpu(priv->card_alive_init.
+ tx_atten[txatten_grp][c]);
else
atten_value = 0;
@@ -2514,8 +2527,8 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
voltage_compensation +
atten_value);
-/* IWL_DEBUG_TXPOWER("calculated txpower index %d\n", */
-/* power_index); */
+/* IWL_DEBUG_TXPOWER("calculated txpower index %d\n",
+ power_index); */
if (power_index < get_min_power_index(i, band))
power_index = get_min_power_index(i, band);
@@ -2525,16 +2538,9 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
power_index += 9;
/* CCK, rate 32, reduce txpower for CCK */
- if (POWER_TABLE_NUM_HT_OFDM_ENTRIES == i) {
+ if (i == POWER_TABLE_CCK_ENTRY)
power_index +=
IWL_TX_POWER_CCK_COMPENSATION_C_STEP;
- tx_power = &(cmd.tx_power.legacy_cck_power);
- }
-
- /* OFDM, rates 0-31 */
- else {
- tx_power = &(cmd.tx_power.ht_ofdm_power[i]);
- }
/* stay within the table! */
if (power_index > 107) {
@@ -2549,65 +2555,134 @@ int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
}
/* fill txpower command for this rate/chain */
- radio_gain = gain_table[band][power_index].radio;
- dsp_atten = gain_table[band][power_index].dsp;
-
- if (c == 0) {
- tx_power->s.ramon_tx_gain = radio_gain;
- tx_power->s.dsp_predis_atten = dsp_atten;
- } else {
- tx_power->s.ramon_tx_gain |= (radio_gain << 8);
- tx_power->s.dsp_predis_atten |=
- (dsp_atten << 8);
- }
+ tx_power.s.radio_tx_gain[c] =
+ gain_table[band][power_index].radio;
+ tx_power.s.dsp_predis_atten[c] =
+ gain_table[band][power_index].dsp;
IWL_DEBUG_TXPOWER("chain %d mimo %d index %d "
"gain 0x%02x dsp %d\n",
c, atten_value, power_index,
- radio_gain, dsp_atten);
+ tx_power.s.radio_tx_gain[c],
+ tx_power.s.dsp_predis_atten[c]);
+ }/* for each chain */
- } /* for each chain */
+ tx_power_tbl->power_tbl[i].dw = cpu_to_le32(tx_power.dw);
- } /* for each rate */
+ }/* for each rate */
- rc = iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD, sizeof(cmd), &cmd);
+ return 0;
+}
+/**
+ * iwl4965_hw_reg_send_txpower - Configure the TXPOWER level user limit
+ *
+ * Uses the active RXON for channel, band, and characteristics (fat, high)
+ * The power limit is taken from priv->user_txpower_limit.
+ */
+int iwl4965_hw_reg_send_txpower(struct iwl4965_priv *priv)
+{
+ struct iwl4965_txpowertable_cmd cmd = { 0 };
+ int rc = 0;
+ u8 band = 0;
+ u8 is_fat = 0;
+ u8 ctrl_chan_high = 0;
+
+ if (test_bit(STATUS_SCANNING, &priv->status)) {
+ /* If this gets hit a lot, switch it to a BUG() and catch
+ * the stack trace to find out who is calling this during
+ * a scan. */
+ IWL_WARNING("TX Power requested while scanning!\n");
+ return -EAGAIN;
+ }
+
+ band = ((priv->phymode == MODE_IEEE80211B) ||
+ (priv->phymode == MODE_IEEE80211G));
+
+ is_fat = is_fat_channel(priv->active_rxon.flags);
+
+ if (is_fat &&
+ (priv->active_rxon.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
+ ctrl_chan_high = 1;
+
+ cmd.band = band;
+ cmd.channel = priv->active_rxon.channel;
+
+ rc = iwl4965_fill_txpower_tbl(priv, band,
+ le16_to_cpu(priv->active_rxon.channel),
+ is_fat, ctrl_chan_high, &cmd.tx_power);
+ if (rc)
+ return rc;
+
+ rc = iwl4965_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD, sizeof(cmd), &cmd);
+ return rc;
+}
+
+int iwl4965_hw_channel_switch(struct iwl4965_priv *priv, u16 channel)
+{
+ int rc;
+ u8 band = 0;
+ u8 is_fat = 0;
+ u8 ctrl_chan_high = 0;
+ struct iwl4965_channel_switch_cmd cmd = { 0 };
+ const struct iwl4965_channel_info *ch_info;
+
+ band = ((priv->phymode == MODE_IEEE80211B) ||
+ (priv->phymode == MODE_IEEE80211G));
+
+ ch_info = iwl4965_get_channel_info(priv, priv->phymode, channel);
+
+ is_fat = is_fat_channel(priv->staging_rxon.flags);
+
+ if (is_fat &&
+ (priv->active_rxon.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
+ ctrl_chan_high = 1;
+
+ cmd.band = band;
+ cmd.expect_beacon = 0;
+ cmd.channel = cpu_to_le16(channel);
+ cmd.rxon_flags = priv->active_rxon.flags;
+ cmd.rxon_filter_flags = priv->active_rxon.filter_flags;
+ cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
+ if (ch_info)
+ cmd.expect_beacon = is_channel_radar(ch_info);
+ else
+ cmd.expect_beacon = 1;
+
+ rc = iwl4965_fill_txpower_tbl(priv, band, channel, is_fat,
+ ctrl_chan_high, &cmd.tx_power);
+ if (rc) {
+ IWL_DEBUG_11H("error:%d fill txpower_tbl\n", rc);
+ return rc;
+ }
+
+ rc = iwl4965_send_cmd_pdu(priv, REPLY_CHANNEL_SWITCH, sizeof(cmd), &cmd);
return rc;
}
#define RTS_HCCA_RETRY_LIMIT 3
#define RTS_DFAULT_RETRY_LIMIT 60
-void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
- struct iwl_cmd *cmd,
+void iwl4965_hw_build_tx_cmd_rate(struct iwl4965_priv *priv,
+ struct iwl4965_cmd *cmd,
struct ieee80211_tx_control *ctrl,
struct ieee80211_hdr *hdr, int sta_id,
int is_hcca)
{
- unsigned long flags;
- int rate = ctrl->tx_rate;
+ u8 rate;
u8 rts_retry_limit = 0;
u8 data_retry_limit = 0;
- u32 tx_flags;
+ __le32 tx_flags;
+ u16 fc = le16_to_cpu(hdr->frame_control);
tx_flags = cmd->cmd.tx.tx_flags;
- rate = iwl_rates[ctrl->tx_rate].plcp;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
-
- priv->stations[sta_id].current_rate.rate_n_flags = rate;
-
- if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
- (sta_id != IWL_BROADCAST_ID) && (sta_id != IWL_MULTICAST_ID))
- priv->stations[IWL_STA_ID].current_rate.rate_n_flags = rate;
-
- spin_unlock_irqrestore(&priv->sta_lock, flags);
+ rate = iwl4965_rates[ctrl->tx_rate].plcp;
rts_retry_limit = (is_hcca) ?
RTS_HCCA_RETRY_LIMIT : RTS_DFAULT_RETRY_LIMIT;
- if (ieee80211_is_probe_response(hdr->frame_control)) {
+ if (ieee80211_is_probe_response(fc)) {
data_retry_limit = 3;
if (data_retry_limit < rts_retry_limit)
rts_retry_limit = data_retry_limit;
@@ -2617,8 +2692,8 @@ void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
if (priv->data_retry_limit != -1)
data_retry_limit = priv->data_retry_limit;
- if (WLAN_FC_GET_TYPE(hdr->frame_control) == IEEE80211_FTYPE_MGMT) {
- switch (WLAN_FC_GET_STYPE(hdr->frame_control)) {
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
+ switch (fc & IEEE80211_FCTL_STYPE) {
case IEEE80211_STYPE_AUTH:
case IEEE80211_STYPE_DEAUTH:
case IEEE80211_STYPE_ASSOC_REQ:
@@ -2635,78 +2710,87 @@ void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
cmd->cmd.tx.rts_retry_limit = rts_retry_limit;
cmd->cmd.tx.data_retry_limit = data_retry_limit;
- cmd->cmd.tx.rate.s.rate = rate;
+ cmd->cmd.tx.rate_n_flags = iwl4965_hw_set_rate_n_flags(rate, 0);
cmd->cmd.tx.tx_flags = tx_flags;
}
-int iwl_hw_get_rx_read(struct iwl_priv *priv)
+int iwl4965_hw_get_rx_read(struct iwl4965_priv *priv)
{
- struct iwl_shared *shared_data =
- (struct iwl_shared *)priv->hw_setting.shared_virt;
+ struct iwl4965_shared *shared_data = priv->hw_setting.shared_virt;
return IWL_GET_BITS(*shared_data, rb_closed_stts_rb_num);
}
-int iwl_hw_get_temperature(struct iwl_priv *priv)
+int iwl4965_hw_get_temperature(struct iwl4965_priv *priv)
{
return priv->temperature;
}
-int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
- struct iwl_frame *frame, u16 rate)
+unsigned int iwl4965_hw_get_beacon_cmd(struct iwl4965_priv *priv,
+ struct iwl4965_frame *frame, u8 rate)
{
- struct iwl_tx_beacon_cmd *tx_beacon_cmd;
- int frame_size;
-
- if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP))
- rate |= RATE_MCS_CCK_MSK;
+ struct iwl4965_tx_beacon_cmd *tx_beacon_cmd;
+ unsigned int frame_size;
tx_beacon_cmd = &frame->u.beacon;
memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
- tx_beacon_cmd->tx.sta_id = IWL_BROADCAST_ID;
- tx_beacon_cmd->tx.stop_time.life_time = 0xFFFFFFFF;
+ tx_beacon_cmd->tx.sta_id = IWL4965_BROADCAST_ID;
+ tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
- frame_size = iwl_fill_beacon_frame(priv,
+ frame_size = iwl4965_fill_beacon_frame(priv,
tx_beacon_cmd->frame,
- BROADCAST_ADDR,
+ iwl4965_broadcast_addr,
sizeof(frame->u) - sizeof(*tx_beacon_cmd));
- tx_beacon_cmd->tx.len = frame_size;
+ BUG_ON(frame_size > MAX_MPDU_SIZE);
+ tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
+
+ if ((rate == IWL_RATE_1M_PLCP) || (rate >= IWL_RATE_2M_PLCP))
+ tx_beacon_cmd->tx.rate_n_flags =
+ iwl4965_hw_set_rate_n_flags(rate, RATE_MCS_CCK_MSK);
+ else
+ tx_beacon_cmd->tx.rate_n_flags =
+ iwl4965_hw_set_rate_n_flags(rate, 0);
- tx_beacon_cmd->tx.rate.rate_n_flags = rate;
tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK |
TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK);
return (sizeof(*tx_beacon_cmd) + frame_size);
}
-int iwl_hw_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq)
+/*
+ * Tell 4965 where to find circular buffer of Tx Frame Descriptors for
+ * given Tx queue, and enable the DMA channel used for that queue.
+ *
+ * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
+ * channels supported in hardware.
+ */
+int iwl4965_hw_tx_queue_init(struct iwl4965_priv *priv, struct iwl4965_tx_queue *txq)
{
int rc;
unsigned long flags;
int txq_id = txq->q.id;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_restricted_access(priv);
+ rc = iwl4965_grab_nic_access(priv);
if (rc) {
spin_unlock_irqrestore(&priv->lock, flags);
return rc;
}
- iwl_write_restricted(priv, FH_MEM_CBBC_QUEUE(txq_id),
+ /* Circular buffer (TFD queue in DRAM) physical base address */
+ iwl4965_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
txq->q.dma_addr >> 8);
- iwl_write_restricted(
+
+ /* Enable DMA channel, using same id as for TFD queue */
+ iwl4965_write_direct32(
priv, IWL_FH_TCSR_CHNL_TX_CONFIG_REG(txq_id),
IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
IWL_FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL);
- iwl_release_restricted_access(priv);
+ iwl4965_release_nic_access(priv);
spin_unlock_irqrestore(&priv->lock, flags);
- return 0;
-}
-static inline u32 iwl4965_get_dma_lo_address(dma_addr_t addr)
-{
- return (u32) (addr & 0xffffffff);
+ return 0;
}
static inline u8 iwl4965_get_dma_hi_address(dma_addr_t addr)
@@ -2714,13 +2798,14 @@ static inline u8 iwl4965_get_dma_hi_address(dma_addr_t addr)
return sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0;
}
-int iwl_hw_tx_queue_attach_buffer_to_tfd(struct iwl_priv *priv,
- void *ptr, dma_addr_t addr, u16 len)
+int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl4965_priv *priv, void *ptr,
+ dma_addr_t addr, u16 len)
{
int index, is_odd;
- struct iwl_tfd_frame *tfd = ptr;
+ struct iwl4965_tfd_frame *tfd = ptr;
u32 num_tbs = IWL_GET_BITS(*tfd, num_tbs);
+ /* Each TFD can point to a maximum 20 Tx buffers */
if ((num_tbs >= MAX_NUM_OF_TBS) || (num_tbs < 0)) {
IWL_ERROR("Error can not send more than %d chunks\n",
MAX_NUM_OF_TBS);
@@ -2728,11 +2813,10 @@ int iwl_hw_tx_queue_attach_buffer_to_tfd(struct iwl_priv *priv,
}
index = num_tbs / 2;
- is_odd = num_tbs % 2;
+ is_odd = num_tbs & 0x1;
if (!is_odd) {
- tfd->pa[index].tb1_addr = cpu_to_le32(
- iwl4965_get_dma_lo_address(addr));
+ tfd->pa[index].tb1_addr = cpu_to_le32(addr);
IWL_SET_BITS(tfd->pa[index], tb1_addr_hi,
iwl4965_get_dma_hi_address(addr));
IWL_SET_BITS(tfd->pa[index], tb1_len, len);
@@ -2748,7 +2832,7 @@ int iwl_hw_tx_queue_attach_buffer_to_tfd(struct iwl_priv *priv,
return 0;
}
-void iwl_hw_card_show_info(struct iwl_priv *priv)
+static void iwl4965_hw_card_show_info(struct iwl4965_priv *priv)
{
u16 hw_version = priv->eeprom.board_revision_4965;
@@ -2763,50 +2847,41 @@ void iwl_hw_card_show_info(struct iwl_priv *priv)
#define IWL_TX_CRC_SIZE 4
#define IWL_TX_DELIMITER_SIZE 4
-int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
- struct iwl_tx_queue *txq, u16 byte_cnt)
+/**
+ * iwl4965_tx_queue_update_wr_ptr - Set up entry in Tx byte-count array
+ */
+int iwl4965_tx_queue_update_wr_ptr(struct iwl4965_priv *priv,
+ struct iwl4965_tx_queue *txq, u16 byte_cnt)
{
int len;
int txq_id = txq->q.id;
- struct iwl_shared *shared_data =
- (struct iwl_shared *)priv->hw_setting.shared_virt;
+ struct iwl4965_shared *shared_data = priv->hw_setting.shared_virt;
if (txq->need_update == 0)
return 0;
len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
- IWL_SET_BITS(shared_data->queues_byte_cnt_tbls[txq_id].
- tfd_offset[txq->q.first_empty], byte_cnt, len);
+ /* Set up byte count within first 256 entries */
+ IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
+ tfd_offset[txq->q.write_ptr], byte_cnt, len);
- if (txq->q.first_empty < IWL4965_MAX_WIN_SIZE)
- IWL_SET_BITS(shared_data->queues_byte_cnt_tbls[txq_id].
- tfd_offset[IWL4965_QUEUE_SIZE + txq->q.first_empty],
- byte_cnt, len);
+ /* If within first 64 entries, duplicate at end */
+ if (txq->q.write_ptr < IWL4965_MAX_WIN_SIZE)
+ IWL_SET_BITS16(shared_data->queues_byte_cnt_tbls[txq_id].
+ tfd_offset[IWL4965_QUEUE_SIZE + txq->q.write_ptr],
+ byte_cnt, len);
return 0;
}
-#define IWL4965_LEGACY_SWITCH_ANTENNA 0
-#define IWL4965_LECACY_SWITCH_SISO 1
-#define IWL4965_LEGACY_SWITCH_MIMO 2
-
-#define IWL4965_GOOD_RATIO 12800
-
-#define IWL_ACTION_LIMIT 3
-#define IWL4965_LEGACY_FAILURE_LIMIT 160
-#define IWL4965_LEGACY_SUCCESS_LIMIT 480
-#define IWL4965_LEGACY_TABLE_COUNT 160
-
-#define IWL4965_NONE_LEGACY_FAILURE_LIMIT 400
-#define IWL4965_NONE_LEGACY_SUCCESS_LIMIT 4500
-#define IWL4965_NONE_LEGACY_TABLE_COUNT 1500
-
-#define IWL4965_RATE_SCALE_SWITCH (10880)
-
-/* Set up Rx receiver/antenna/chain usage in "staging" RXON image.
- * This should not be used for scan command ... it puts data in wrong place. */
-void iwl4965_set_rxon_chain(struct iwl_priv *priv)
+/**
+ * iwl4965_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
+ *
+ * Selects how many and which Rx receivers/antennas/chains to use.
+ * This should not be used for scan command ... it puts data in wrong place.
+ */
+void iwl4965_set_rxon_chain(struct iwl4965_priv *priv)
{
u8 is_single = is_single_stream(priv);
u8 idle_state, rx_state;
@@ -2819,14 +2894,17 @@ void iwl4965_set_rxon_chain(struct iwl_priv *priv)
* Just after first association, iwl4965_noise_calibration()
* checks which antennas actually *are* connected. */
priv->staging_rxon.rx_chain |=
- (priv->valid_antenna << RXON_RX_CHAIN_VALID_POS);
+ cpu_to_le16(priv->valid_antenna << RXON_RX_CHAIN_VALID_POS);
/* How many receivers should we use? */
iwl4965_get_rx_chain_counter(priv, &idle_state, &rx_state);
- priv->staging_rxon.rx_chain |= (rx_state << RXON_RX_CHAIN_MIMO_CNT_POS);
- priv->staging_rxon.rx_chain |= (idle_state << RXON_RX_CHAIN_CNT_POS);
+ priv->staging_rxon.rx_chain |=
+ cpu_to_le16(rx_state << RXON_RX_CHAIN_MIMO_CNT_POS);
+ priv->staging_rxon.rx_chain |=
+ cpu_to_le16(idle_state << RXON_RX_CHAIN_CNT_POS);
- if (!is_single && !(priv->status & STATUS_POWER_PMI) && (rx_state >= 2))
+ if (!is_single && (rx_state >= 2) &&
+ !test_bit(STATUS_POWER_PMI, &priv->status))
priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
else
priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
@@ -2834,27 +2912,378 @@ void iwl4965_set_rxon_chain(struct iwl_priv *priv)
IWL_DEBUG_ASSOC("rx chain %X\n", priv->staging_rxon.rx_chain);
}
-int iwl4965_tx_cmd(struct iwl_priv *priv, struct iwl_cmd *out_cmd,
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+/*
+ get the traffic load value for tid
+*/
+static u32 iwl4965_tl_get_load(struct iwl4965_priv *priv, u8 tid)
+{
+ u32 load = 0;
+ u32 current_time = jiffies_to_msecs(jiffies);
+ u32 time_diff;
+ s32 index;
+ unsigned long flags;
+ struct iwl4965_traffic_load *tid_ptr = NULL;
+
+ if (tid >= TID_MAX_LOAD_COUNT)
+ return 0;
+
+ tid_ptr = &(priv->lq_mngr.agg_ctrl.traffic_load[tid]);
+
+ current_time -= current_time % TID_ROUND_VALUE;
+
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+ if (!(tid_ptr->queue_count))
+ goto out;
+
+ time_diff = TIME_WRAP_AROUND(tid_ptr->time_stamp, current_time);
+ index = time_diff / TID_QUEUE_CELL_SPACING;
+
+ if (index >= TID_QUEUE_MAX_SIZE) {
+ u32 oldest_time = current_time - TID_MAX_TIME_DIFF;
+
+ while (tid_ptr->queue_count &&
+ (tid_ptr->time_stamp < oldest_time)) {
+ tid_ptr->total -= tid_ptr->packet_count[tid_ptr->head];
+ tid_ptr->packet_count[tid_ptr->head] = 0;
+ tid_ptr->time_stamp += TID_QUEUE_CELL_SPACING;
+ tid_ptr->queue_count--;
+ tid_ptr->head++;
+ if (tid_ptr->head >= TID_QUEUE_MAX_SIZE)
+ tid_ptr->head = 0;
+ }
+ }
+ load = tid_ptr->total;
+
+ out:
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+ return load;
+}
+
+/*
+ increment traffic load value for tid and also remove
+ any old values if passed the certian time period
+*/
+static void iwl4965_tl_add_packet(struct iwl4965_priv *priv, u8 tid)
+{
+ u32 current_time = jiffies_to_msecs(jiffies);
+ u32 time_diff;
+ s32 index;
+ unsigned long flags;
+ struct iwl4965_traffic_load *tid_ptr = NULL;
+
+ if (tid >= TID_MAX_LOAD_COUNT)
+ return;
+
+ tid_ptr = &(priv->lq_mngr.agg_ctrl.traffic_load[tid]);
+
+ current_time -= current_time % TID_ROUND_VALUE;
+
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+ if (!(tid_ptr->queue_count)) {
+ tid_ptr->total = 1;
+ tid_ptr->time_stamp = current_time;
+ tid_ptr->queue_count = 1;
+ tid_ptr->head = 0;
+ tid_ptr->packet_count[0] = 1;
+ goto out;
+ }
+
+ time_diff = TIME_WRAP_AROUND(tid_ptr->time_stamp, current_time);
+ index = time_diff / TID_QUEUE_CELL_SPACING;
+
+ if (index >= TID_QUEUE_MAX_SIZE) {
+ u32 oldest_time = current_time - TID_MAX_TIME_DIFF;
+
+ while (tid_ptr->queue_count &&
+ (tid_ptr->time_stamp < oldest_time)) {
+ tid_ptr->total -= tid_ptr->packet_count[tid_ptr->head];
+ tid_ptr->packet_count[tid_ptr->head] = 0;
+ tid_ptr->time_stamp += TID_QUEUE_CELL_SPACING;
+ tid_ptr->queue_count--;
+ tid_ptr->head++;
+ if (tid_ptr->head >= TID_QUEUE_MAX_SIZE)
+ tid_ptr->head = 0;
+ }
+ }
+
+ index = (tid_ptr->head + index) % TID_QUEUE_MAX_SIZE;
+ tid_ptr->packet_count[index] = tid_ptr->packet_count[index] + 1;
+ tid_ptr->total = tid_ptr->total + 1;
+
+ if ((index + 1) > tid_ptr->queue_count)
+ tid_ptr->queue_count = index + 1;
+ out:
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+
+}
+
+#define MMAC_SCHED_MAX_NUMBER_OF_HT_BACK_FLOWS 7
+enum HT_STATUS {
+ BA_STATUS_FAILURE = 0,
+ BA_STATUS_INITIATOR_DELBA,
+ BA_STATUS_RECIPIENT_DELBA,
+ BA_STATUS_RENEW_ADDBA_REQUEST,
+ BA_STATUS_ACTIVE,
+};
+
+/**
+ * iwl4964_tl_ba_avail - Find out if an unused aggregation queue is available
+ */
+static u8 iwl4964_tl_ba_avail(struct iwl4965_priv *priv)
+{
+ int i;
+ struct iwl4965_lq_mngr *lq;
+ u8 count = 0;
+ u16 msk;
+
+ lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
+
+ /* Find out how many agg queues are in use */
+ for (i = 0; i < TID_MAX_LOAD_COUNT ; i++) {
+ msk = 1 << i;
+ if ((lq->agg_ctrl.granted_ba & msk) ||
+ (lq->agg_ctrl.wait_for_agg_status & msk))
+ count++;
+ }
+
+ if (count < MMAC_SCHED_MAX_NUMBER_OF_HT_BACK_FLOWS)
+ return 1;
+
+ return 0;
+}
+
+static void iwl4965_ba_status(struct iwl4965_priv *priv,
+ u8 tid, enum HT_STATUS status);
+
+static int iwl4965_perform_addba(struct iwl4965_priv *priv, u8 tid, u32 length,
+ u32 ba_timeout)
+{
+ int rc;
+
+ rc = ieee80211_start_BA_session(priv->hw, priv->bssid, tid);
+ if (rc)
+ iwl4965_ba_status(priv, tid, BA_STATUS_FAILURE);
+
+ return rc;
+}
+
+static int iwl4965_perform_delba(struct iwl4965_priv *priv, u8 tid)
+{
+ int rc;
+
+ rc = ieee80211_stop_BA_session(priv->hw, priv->bssid, tid);
+ if (rc)
+ iwl4965_ba_status(priv, tid, BA_STATUS_FAILURE);
+
+ return rc;
+}
+
+static void iwl4965_turn_on_agg_for_tid(struct iwl4965_priv *priv,
+ struct iwl4965_lq_mngr *lq,
+ u8 auto_agg, u8 tid)
+{
+ u32 tid_msk = (1 << tid);
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+/*
+ if ((auto_agg) && (!lq->enable_counter)){
+ lq->agg_ctrl.next_retry = 0;
+ lq->agg_ctrl.tid_retry = 0;
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+ return;
+ }
+*/
+ if (!(lq->agg_ctrl.granted_ba & tid_msk) &&
+ (lq->agg_ctrl.requested_ba & tid_msk)) {
+ u8 available_queues;
+ u32 load;
+
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+ available_queues = iwl4964_tl_ba_avail(priv);
+ load = iwl4965_tl_get_load(priv, tid);
+
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+ if (!available_queues) {
+ if (auto_agg)
+ lq->agg_ctrl.tid_retry |= tid_msk;
+ else {
+ lq->agg_ctrl.requested_ba &= ~tid_msk;
+ lq->agg_ctrl.wait_for_agg_status &= ~tid_msk;
+ }
+ } else if ((auto_agg) &&
+ ((load <= lq->agg_ctrl.tid_traffic_load_threshold) ||
+ ((lq->agg_ctrl.wait_for_agg_status & tid_msk))))
+ lq->agg_ctrl.tid_retry |= tid_msk;
+ else {
+ lq->agg_ctrl.wait_for_agg_status |= tid_msk;
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+ iwl4965_perform_addba(priv, tid, 0x40,
+ lq->agg_ctrl.ba_timeout);
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+ }
+ }
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+}
+
+static void iwl4965_turn_on_agg(struct iwl4965_priv *priv, u8 tid)
+{
+ struct iwl4965_lq_mngr *lq;
+ unsigned long flags;
+
+ lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
+
+ if ((tid < TID_MAX_LOAD_COUNT))
+ iwl4965_turn_on_agg_for_tid(priv, lq, lq->agg_ctrl.auto_agg,
+ tid);
+ else if (tid == TID_ALL_SPECIFIED) {
+ if (lq->agg_ctrl.requested_ba) {
+ for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++)
+ iwl4965_turn_on_agg_for_tid(priv, lq,
+ lq->agg_ctrl.auto_agg, tid);
+ } else {
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+ lq->agg_ctrl.tid_retry = 0;
+ lq->agg_ctrl.next_retry = 0;
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+ }
+ }
+
+}
+
+void iwl4965_turn_off_agg(struct iwl4965_priv *priv, u8 tid)
+{
+ u32 tid_msk;
+ struct iwl4965_lq_mngr *lq;
+ unsigned long flags;
+
+ lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
+
+ if ((tid < TID_MAX_LOAD_COUNT)) {
+ tid_msk = 1 << tid;
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+ lq->agg_ctrl.wait_for_agg_status |= tid_msk;
+ lq->agg_ctrl.requested_ba &= ~tid_msk;
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+ iwl4965_perform_delba(priv, tid);
+ } else if (tid == TID_ALL_SPECIFIED) {
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+ for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++) {
+ tid_msk = 1 << tid;
+ lq->agg_ctrl.wait_for_agg_status |= tid_msk;
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+ iwl4965_perform_delba(priv, tid);
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+ }
+ lq->agg_ctrl.requested_ba = 0;
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+ }
+}
+
+/**
+ * iwl4965_ba_status - Update driver's link quality mgr with tid's HT status
+ */
+static void iwl4965_ba_status(struct iwl4965_priv *priv,
+ u8 tid, enum HT_STATUS status)
+{
+ struct iwl4965_lq_mngr *lq;
+ u32 tid_msk = (1 << tid);
+ unsigned long flags;
+
+ lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
+
+ if ((tid >= TID_MAX_LOAD_COUNT))
+ goto out;
+
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+ switch (status) {
+ case BA_STATUS_ACTIVE:
+ if (!(lq->agg_ctrl.granted_ba & tid_msk))
+ lq->agg_ctrl.granted_ba |= tid_msk;
+ break;
+ default:
+ if ((lq->agg_ctrl.granted_ba & tid_msk))
+ lq->agg_ctrl.granted_ba &= ~tid_msk;
+ break;
+ }
+
+ lq->agg_ctrl.wait_for_agg_status &= ~tid_msk;
+ if (status != BA_STATUS_ACTIVE) {
+ if (lq->agg_ctrl.auto_agg) {
+ lq->agg_ctrl.tid_retry |= tid_msk;
+ lq->agg_ctrl.next_retry =
+ jiffies + msecs_to_jiffies(500);
+ } else
+ lq->agg_ctrl.requested_ba &= ~tid_msk;
+ }
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+ out:
+ return;
+}
+
+static void iwl4965_bg_agg_work(void *p)
+{
+ struct iwl4965_priv *priv = p;
+
+ u32 tid;
+ u32 retry_tid;
+ u32 tid_msk;
+ unsigned long flags;
+ struct iwl4965_lq_mngr *lq = (struct iwl4965_lq_mngr *)&(priv->lq_mngr);
+
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+ retry_tid = lq->agg_ctrl.tid_retry;
+ lq->agg_ctrl.tid_retry = 0;
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+
+ if (retry_tid == TID_ALL_SPECIFIED)
+ iwl4965_turn_on_agg(priv, TID_ALL_SPECIFIED);
+ else {
+ for (tid = 0; tid < TID_MAX_LOAD_COUNT; tid++) {
+ tid_msk = (1 << tid);
+ if (retry_tid & tid_msk)
+ iwl4965_turn_on_agg(priv, tid);
+ }
+ }
+
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+ if (lq->agg_ctrl.tid_retry)
+ lq->agg_ctrl.next_retry = jiffies + msecs_to_jiffies(500);
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+ return;
+}
+#endif /*CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
+
+int iwl4965_tx_cmd(struct iwl4965_priv *priv, struct iwl4965_cmd *out_cmd,
u8 sta_id, dma_addr_t txcmd_phys,
struct ieee80211_hdr *hdr, u8 hdr_len,
struct ieee80211_tx_control *ctrl, void *sta_in)
{
- struct iwl_tx_cmd cmd;
- struct iwl_tx_cmd *tx = (struct iwl_tx_cmd *)&out_cmd->cmd.payload[0];
+ struct iwl4965_tx_cmd cmd;
+ struct iwl4965_tx_cmd *tx = (struct iwl4965_tx_cmd *)&out_cmd->cmd.payload[0];
dma_addr_t scratch_phys;
u8 unicast = 0;
u8 is_data = 1;
u16 fc;
+ u16 rate_flags;
int rate_index = min(ctrl->tx_rate & 0xffff, IWL_RATE_COUNT - 1);
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+ __le16 *qc;
+#endif /*CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
unicast = !is_multicast_ether_addr(hdr->addr1);
fc = le16_to_cpu(hdr->frame_control);
- if (WLAN_FC_GET_TYPE(fc) != IEEE80211_FTYPE_DATA)
+ if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
is_data = 0;
- memcpy(&cmd, &(out_cmd->cmd.tx), sizeof(struct iwl_tx_cmd));
- memset(tx, 0, sizeof(struct iwl_tx_cmd));
+ memcpy(&cmd, &(out_cmd->cmd.tx), sizeof(struct iwl4965_tx_cmd));
+ memset(tx, 0, sizeof(struct iwl4965_tx_cmd));
memcpy(tx->hdr, hdr, hdr_len);
tx->len = cmd.len;
@@ -2873,48 +3302,66 @@ int iwl4965_tx_cmd(struct iwl_priv *priv, struct iwl_cmd *out_cmd,
tx->rts_retry_limit = cmd.rts_retry_limit;
tx->data_retry_limit = cmd.data_retry_limit;
- scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) +
- offsetof(struct iwl_tx_cmd, scratch);
- tx->dram_lsb_ptr = iwl4965_get_dma_lo_address(scratch_phys);
+ scratch_phys = txcmd_phys + sizeof(struct iwl4965_cmd_header) +
+ offsetof(struct iwl4965_tx_cmd, scratch);
+ tx->dram_lsb_ptr = cpu_to_le32(scratch_phys);
tx->dram_msb_ptr = iwl4965_get_dma_hi_address(scratch_phys);
/* Hard coded to start at the highest retry fallback position
* until the 4965 specific rate control algorithm is tied in */
tx->initial_rate_index = LINK_QUAL_MAX_RETRY_NUM - 1;
- tx->rate.s.rate = iwl_rates[rate_index].plcp;
/* Alternate between antenna A and B for successive frames */
if (priv->use_ant_b_for_management_frame) {
priv->use_ant_b_for_management_frame = 0;
- tx->rate.rate_n_flags |= RATE_MCS_ANT_B_MSK;
- tx->rate.rate_n_flags &= ~RATE_MCS_ANT_A_MSK;
+ rate_flags = RATE_MCS_ANT_B_MSK;
} else {
priv->use_ant_b_for_management_frame = 1;
- tx->rate.rate_n_flags |= RATE_MCS_ANT_A_MSK;
- tx->rate.rate_n_flags &= ~RATE_MCS_ANT_B_MSK;
+ rate_flags = RATE_MCS_ANT_A_MSK;
}
- if (!unicast || !is_data ) {
+ if (!unicast || !is_data) {
if ((rate_index >= IWL_FIRST_CCK_RATE) &&
(rate_index <= IWL_LAST_CCK_RATE))
- tx->rate.rate_n_flags |= RATE_MCS_CCK_MSK;
-
+ rate_flags |= RATE_MCS_CCK_MSK;
} else {
tx->initial_rate_index = 0;
tx->tx_flags |= TX_CMD_FLG_STA_RATE_MSK;
}
- if (ieee80211_is_probe_request(fc))
- tx->tx_flags |= TX_CMD_FLG_TSF_MSK;
- else if (ieee80211_is_back_request(fc))
+ tx->rate_n_flags = iwl4965_hw_set_rate_n_flags(iwl4965_rates[rate_index].plcp,
+ rate_flags);
+
+ if (ieee80211_is_back_request(fc))
tx->tx_flags |= TX_CMD_FLG_ACK_MSK |
TX_CMD_FLG_IMM_BA_RSP_MASK;
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+ qc = ieee80211_get_qos_ctrl(hdr);
+ if (qc &&
+ (priv->iw_mode != IEEE80211_IF_TYPE_IBSS)) {
+ u8 tid = 0;
+ tid = (u8) (le16_to_cpu(*qc) & 0xF);
+ if (tid < TID_MAX_LOAD_COUNT)
+ iwl4965_tl_add_packet(priv, tid);
+ }
+
+ if (priv->lq_mngr.agg_ctrl.next_retry &&
+ (time_after(priv->lq_mngr.agg_ctrl.next_retry, jiffies))) {
+ unsigned long flags;
+ spin_lock_irqsave(&priv->lq_mngr.lock, flags);
+ priv->lq_mngr.agg_ctrl.next_retry = 0;
+ spin_unlock_irqrestore(&priv->lq_mngr.lock, flags);
+ schedule_work(&priv->agg_work);
+ }
+#endif
+#endif
return 0;
}
/**
- * iwl4965_sign_extend - Sign extend a value using specified bit as sign-bit
+ * sign_extend - Sign extend a value using specified bit as sign-bit
*
* Example: sign_extend(9, 3) would return -7 as bit3 of 1001b is 1
* and bit0..2 is 001b which when sign extended to 1111111111111001b is -7.
@@ -2922,25 +3369,11 @@ int iwl4965_tx_cmd(struct iwl_priv *priv, struct iwl_cmd *out_cmd,
* @param oper value to sign extend
* @param index 0 based bit index (0<=index<32) to sign bit
*/
-static s32 iwl4965_sign_extend(u32 oper, u8 index)
+static s32 sign_extend(u32 oper, int index)
{
- u32 bit;
- u32 mask;
-
- /* If the index is the MSB or higher then just return the
- * operand cast to a signed value */
- if (index > 30)
- return oper;
-
- bit = 1 << index;
- mask = ~(bit - 1);
+ u8 shift = 31 - index;
- /* negative -- sign extend */
- if (oper & bit)
- return oper |= mask;
-
- /* positive -- sign clear */
- return oper &= ~mask;
+ return (s32)(oper << shift) >> shift;
}
/**
@@ -2949,38 +3382,40 @@ static s32 iwl4965_sign_extend(u32 oper, u8 index)
*
* A return of <0 indicates bogus data in the statistics
*/
-int iwl4965_get_temperature(const struct iwl_priv *priv)
+int iwl4965_get_temperature(const struct iwl4965_priv *priv)
{
s32 temperature;
s32 vt;
- s32 R1, R2, R3, R4;
+ s32 R1, R2, R3;
+ u32 R4;
- if ((priv->status & STATUS_TEMPERATURE) &&
+ if (test_bit(STATUS_TEMPERATURE, &priv->status) &&
(priv->statistics.flag & STATISTICS_REPLY_FLG_FAT_MODE_MSK)) {
IWL_DEBUG_TEMP("Running FAT temperature calibration\n");
- R1 = priv->card_alive_init.therm_r1[1];
- R2 = priv->card_alive_init.therm_r2[1];
- R3 = priv->card_alive_init.therm_r3[1];
- R4 = priv->card_alive_init.therm_r4[1];
+ R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[1]);
+ R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[1]);
+ R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[1]);
+ R4 = le32_to_cpu(priv->card_alive_init.therm_r4[1]);
} else {
IWL_DEBUG_TEMP("Running temperature calibration\n");
- R1 = priv->card_alive_init.therm_r1[0];
- R2 = priv->card_alive_init.therm_r2[0];
- R3 = priv->card_alive_init.therm_r3[0];
- R4 = priv->card_alive_init.therm_r4[0];
+ R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[0]);
+ R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[0]);
+ R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[0]);
+ R4 = le32_to_cpu(priv->card_alive_init.therm_r4[0]);
}
/*
- * Temperature is only 23 bits so sign extend out to 32
+ * Temperature is only 23 bits, so sign extend out to 32.
*
* NOTE If we haven't received a statistics notification yet
* with an updated temperature, use R4 provided to us in the
- * ALIVE response. */
- if (!(priv->status & STATUS_TEMPERATURE))
- vt = iwl4965_sign_extend(R4, 23);
+ * "initialize" ALIVE response.
+ */
+ if (!test_bit(STATUS_TEMPERATURE, &priv->status))
+ vt = sign_extend(R4, 23);
else
- vt = iwl4965_sign_extend(priv->statistics.general.temperature,
- 23);
+ vt = sign_extend(
+ le32_to_cpu(priv->statistics.general.temperature), 23);
IWL_DEBUG_TEMP("Calib values R[1-3]: %d %d %d R4: %d\n",
R1, R2, R3, vt);
@@ -3015,11 +3450,11 @@ int iwl4965_get_temperature(const struct iwl_priv *priv)
* Assumes caller will replace priv->last_temperature once calibration
* executed.
*/
-static int iwl4965_is_temp_calib_needed(struct iwl_priv *priv)
+static int iwl4965_is_temp_calib_needed(struct iwl4965_priv *priv)
{
int temp_diff;
- if (!(priv->status & STATUS_STATISTICS)) {
+ if (!test_bit(STATUS_STATISTICS, &priv->status)) {
IWL_DEBUG_TEMP("Temperature not updated -- no statistics.\n");
return 0;
}
@@ -3045,9 +3480,49 @@ static int iwl4965_is_temp_calib_needed(struct iwl_priv *priv)
return 1;
}
-void iwl_hw_rx_statistics(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
+/* Calculate noise level, based on measurements during network silence just
+ * before arriving beacon. This measurement can be done only if we know
+ * exactly when to expect beacons, therefore only when we're associated. */
+static void iwl4965_rx_calc_noise(struct iwl4965_priv *priv)
{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+ struct statistics_rx_non_phy *rx_info
+ = &(priv->statistics.rx.general);
+ int num_active_rx = 0;
+ int total_silence = 0;
+ int bcn_silence_a =
+ le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER;
+ int bcn_silence_b =
+ le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER;
+ int bcn_silence_c =
+ le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER;
+
+ if (bcn_silence_a) {
+ total_silence += bcn_silence_a;
+ num_active_rx++;
+ }
+ if (bcn_silence_b) {
+ total_silence += bcn_silence_b;
+ num_active_rx++;
+ }
+ if (bcn_silence_c) {
+ total_silence += bcn_silence_c;
+ num_active_rx++;
+ }
+
+ /* Average among active antennas */
+ if (num_active_rx)
+ priv->last_rx_noise = (total_silence / num_active_rx) - 107;
+ else
+ priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
+
+ IWL_DEBUG_CALIB("inband silence a %u, b %u, c %u, dBm %d\n",
+ bcn_silence_a, bcn_silence_b, bcn_silence_c,
+ priv->last_rx_noise);
+}
+
+void iwl4965_hw_rx_statistics(struct iwl4965_priv *priv, struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
int change;
s32 temp;
@@ -3062,7 +3537,7 @@ void iwl_hw_rx_statistics(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
memcpy(&priv->statistics, &pkt->u.stats, sizeof(priv->statistics));
- priv->status |= STATUS_STATISTICS;
+ set_bit(STATUS_STATISTICS, &priv->status);
/* Reschedule the statistics timer to occur in
* REG_RECALIB_PERIOD seconds to ensure we get a
@@ -3071,11 +3546,14 @@ void iwl_hw_rx_statistics(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
mod_timer(&priv->statistics_periodic, jiffies +
msecs_to_jiffies(REG_RECALIB_PERIOD * 1000));
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
- if (unlikely(!(priv->status & STATUS_SCANNING)) &&
- (pkt->hdr.cmd == STATISTICS_NOTIFICATION))
+ if (unlikely(!test_bit(STATUS_SCANNING, &priv->status)) &&
+ (pkt->hdr.cmd == STATISTICS_NOTIFICATION)) {
+ iwl4965_rx_calc_noise(priv);
+#ifdef CONFIG_IWL4965_SENSITIVITY
queue_work(priv->workqueue, &priv->sensitivity_work);
#endif
+ }
+
/* If the hardware hasn't reported a change in
* temperature then don't bother computing a
* calibrated temperature value */
@@ -3099,26 +3577,26 @@ void iwl_hw_rx_statistics(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
}
priv->temperature = temp;
- priv->status |= STATUS_TEMPERATURE;
+ set_bit(STATUS_TEMPERATURE, &priv->status);
- if (unlikely(!(priv->status & STATUS_SCANNING) &&
- iwl4965_is_temp_calib_needed(priv)))
+ if (unlikely(!test_bit(STATUS_SCANNING, &priv->status)) &&
+ iwl4965_is_temp_calib_needed(priv))
queue_work(priv->workqueue, &priv->txpower_work);
}
-static void iwl4965_handle_data_packet(struct iwl_priv *priv, int is_data,
+static void iwl4965_handle_data_packet(struct iwl4965_priv *priv, int is_data,
int include_phy,
- struct iwl_rx_mem_buffer *rxb,
+ struct iwl4965_rx_mem_buffer *rxb,
struct ieee80211_rx_status *stats)
{
- struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
+ struct iwl4965_rx_packet *pkt = (struct iwl4965_rx_packet *)rxb->skb->data;
struct iwl4965_rx_phy_res *rx_start = (include_phy) ?
(struct iwl4965_rx_phy_res *)&(pkt->u.raw[0]) : NULL;
struct ieee80211_hdr *hdr;
- unsigned int len;
- u32 *rx_end;
+ u16 len;
+ __le32 *rx_end;
unsigned int skblen;
- u32 ampd_status;
+ u32 ampdu_status;
if (!include_phy && priv->last_phy_res[0])
rx_start = (struct iwl4965_rx_phy_res *)&priv->last_phy_res[1];
@@ -3131,9 +3609,9 @@ static void iwl4965_handle_data_packet(struct iwl_priv *priv, int is_data,
hdr = (struct ieee80211_hdr *)((u8 *) & rx_start[1] +
rx_start->cfg_phy_cnt);
- len = rx_start->byte_count;
+ len = le16_to_cpu(rx_start->byte_count);
- rx_end = (u32 *) ((u8 *) & pkt->u.raw[0] +
+ rx_end = (__le32 *) ((u8 *) & pkt->u.raw[0] +
sizeof(struct iwl4965_rx_phy_res) +
rx_start->cfg_phy_cnt + len);
@@ -3141,20 +3619,19 @@ static void iwl4965_handle_data_packet(struct iwl_priv *priv, int is_data,
struct iwl4965_rx_mpdu_res_start *amsdu =
(struct iwl4965_rx_mpdu_res_start *)pkt->u.raw;
- hdr = (void *)(pkt->u.raw +
+ hdr = (struct ieee80211_hdr *)(pkt->u.raw +
sizeof(struct iwl4965_rx_mpdu_res_start));
- rx_end = (u32 *) (((u8 *) hdr) + amsdu->byte_count);
- len = amsdu->byte_count;
- rx_start->byte_count = len;
+ len = le16_to_cpu(amsdu->byte_count);
+ rx_start->byte_count = amsdu->byte_count;
+ rx_end = (__le32 *) (((u8 *) hdr) + len);
}
- if (len > 2342 || len < 16) {
- IWL_DEBUG_DROP("byte count out of range [16,2342]"
+ if (len > priv->hw_setting.max_pkt_size || len < 16) {
+ IWL_WARNING("byte count out of range [16,4K]"
" : %d\n", len);
return;
-
}
- ampd_status = *rx_end;
+ ampdu_status = le32_to_cpu(*rx_end);
skblen = ((u8 *) rx_end - (u8 *) & pkt->u.raw[0]) + sizeof(u32);
/* start from MAC */
@@ -3163,31 +3640,31 @@ static void iwl4965_handle_data_packet(struct iwl_priv *priv, int is_data,
/* We only process data packets if the interface is open */
if (unlikely(!priv->is_open)) {
- IWL_DEBUG_DROP
+ IWL_DEBUG_DROP_LIMIT
("Dropping packet while interface is not open.\n");
return;
}
if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
- if (param_hwcrypto)
- iwl_set_decrypted_flag(priv, rxb->skb,
- ampd_status, stats);
- iwl_handle_data_packet_monitor(priv, rxb, hdr, len, stats, 0);
+ if (iwl4965_param_hwcrypto)
+ iwl4965_set_decrypted_flag(priv, rxb->skb,
+ ampdu_status, stats);
+ iwl4965_handle_data_packet_monitor(priv, rxb, hdr, len, stats, 0);
return;
}
stats->flag = 0;
hdr = (struct ieee80211_hdr *)rxb->skb->data;
- if (param_hwcrypto)
- iwl_set_decrypted_flag(priv, rxb->skb, ampd_status, stats);
+ if (iwl4965_param_hwcrypto)
+ iwl4965_set_decrypted_flag(priv, rxb->skb, ampdu_status, stats);
ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats);
priv->alloc_rxb_skb--;
rxb->skb = NULL;
#ifdef LED
priv->led_packets += len;
- iwl_setup_activity_timer(priv);
+ iwl4965_setup_activity_timer(priv);
#endif
}
@@ -3198,11 +3675,12 @@ static int iwl4965_calc_rssi(struct iwl4965_rx_phy_res *rx_resp)
* contents are always there, not configurable by host. */
struct iwl4965_rx_non_cfg_phy *ncphy =
(struct iwl4965_rx_non_cfg_phy *)rx_resp->non_cfg_phy;
- u32 agc = (ncphy->agc_info & IWL_AGC_DB_MASK) >> IWL_AGC_DB_POS;
+ u32 agc = (le16_to_cpu(ncphy->agc_info) & IWL_AGC_DB_MASK)
+ >> IWL_AGC_DB_POS;
u32 valid_antennae =
- (rx_resp->phy_flags & RX_PHY_FLAGS_ANTENNAE_MASK) >>
- RX_PHY_FLAGS_ANTENNAE_OFFSET;
+ (le16_to_cpu(rx_resp->phy_flags) & RX_PHY_FLAGS_ANTENNAE_MASK)
+ >> RX_PHY_FLAGS_ANTENNAE_OFFSET;
u8 max_rssi = 0;
u32 i;
@@ -3224,7 +3702,7 @@ static int iwl4965_calc_rssi(struct iwl4965_rx_phy_res *rx_resp)
return (max_rssi - agc - IWL_RSSI_OFFSET);
}
-#ifdef CONFIG_IWLWIFI_HT
+#ifdef CONFIG_IWL4965_HT
/* Parsed Information Elements */
struct ieee802_11_elems {
@@ -3242,7 +3720,7 @@ struct ieee802_11_elems {
u8 ht_extra_param_len;
};
-static int parse_elems(u8 * start, size_t len, struct ieee802_11_elems *elems)
+static int parse_elems(u8 *start, size_t len, struct ieee802_11_elems *elems)
{
size_t left = len;
u8 *pos = start;
@@ -3296,29 +3774,76 @@ static int parse_elems(u8 * start, size_t len, struct ieee802_11_elems *elems)
return 0;
}
-#endif /* CONFIG_IWLWIFI_HT */
-static void iwl4965_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
+void iwl4965_init_ht_hw_capab(struct ieee80211_ht_info *ht_info, int mode)
+{
+ ht_info->cap = 0;
+ memset(ht_info->supp_mcs_set, 0, 16);
+
+ ht_info->ht_supported = 1;
+
+ if (mode == MODE_IEEE80211A) {
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_SUP_WIDTH;
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_40;
+ ht_info->supp_mcs_set[4] = 0x01;
+ }
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_GRN_FLD;
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_20;
+ ht_info->cap |= (u16)(IEEE80211_HT_CAP_MIMO_PS &
+ (IWL_MIMO_PS_NONE << 2));
+ if (iwl4965_param_amsdu_size_8K) {
+ printk(KERN_DEBUG "iwl4965 in A-MSDU 8K support mode\n");
+ ht_info->cap |= (u16)IEEE80211_HT_CAP_MAX_AMSDU;
+ }
+
+ ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
+ ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
+
+ ht_info->supp_mcs_set[0] = 0xFF;
+ ht_info->supp_mcs_set[1] = 0xFF;
+}
+#endif /* CONFIG_IWL4965_HT */
+
+static void iwl4965_sta_modify_ps_wake(struct iwl4965_priv *priv, int sta_id)
{
- unsigned long lock_flags;
- spin_lock_irqsave(&priv->sta_lock, lock_flags);
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK;
priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
priv->stations[sta_id].sta.sta.modify_mask = 0;
- priv->stations[sta_id].sta.mode |= STA_CONTROL_MODIFY_MSK;
- spin_unlock_irqrestore(&priv->sta_lock, lock_flags);
- /* assuming we are in rx flow and the lock is already locked */
- iwl_send_add_station(priv, &priv->stations[sta_id].sta,
- CMD_ASYNC | CMD_NO_LOCK);
+ priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
}
+static void iwl4965_update_ps_mode(struct iwl4965_priv *priv, u16 ps_bit, u8 *addr)
+{
+ /* FIXME: need locking over ps_status ??? */
+ u8 sta_id = iwl4965_hw_find_station(priv, addr);
+
+ if (sta_id != IWL_INVALID_STATION) {
+ u8 sta_awake = priv->stations[sta_id].
+ ps_status == STA_PS_STATUS_WAKE;
+
+ if (sta_awake && ps_bit)
+ priv->stations[sta_id].ps_status = STA_PS_STATUS_SLEEP;
+ else if (!sta_awake && !ps_bit) {
+ iwl4965_sta_modify_ps_wake(priv, sta_id);
+ priv->stations[sta_id].ps_status = STA_PS_STATUS_WAKE;
+ }
+ }
+}
+
+#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
+
/* Called for REPLY_4965_RX (legacy ABG frames), or
* REPLY_RX_MPDU_CMD (HT high-throughput N frames). */
-static void iwl4965_rx_reply_rx(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
+static void iwl4965_rx_reply_rx(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
-
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
/* Use phy data (Rx signal strength, etc.) contained within
* this rx packet for legacy frames,
* or phy data cached from REPLY_RX_PHY_CMD for HT frames. */
@@ -3326,21 +3851,22 @@ static void iwl4965_rx_reply_rx(struct iwl_priv *priv,
struct iwl4965_rx_phy_res *rx_start = (include_phy) ?
(struct iwl4965_rx_phy_res *)&(pkt->u.raw[0]) :
(struct iwl4965_rx_phy_res *)&priv->last_phy_res[1];
-
- u32 *rx_end;
+ __le32 *rx_end;
unsigned int len = 0;
struct ieee80211_hdr *header;
u16 fc;
struct ieee80211_rx_status stats = {
- .mactime = rx_start->beacon_time_stamp,
- .freq = ieee80211chan2mhz(le16_to_cpu(rx_start->channel)),
- .channel = rx_start->channel,
+ .mactime = le64_to_cpu(rx_start->timestamp),
+ .channel = le16_to_cpu(rx_start->channel),
.phymode =
(rx_start->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
MODE_IEEE80211G : MODE_IEEE80211A,
.antenna = 0,
- .rate = rx_start->rate.s.rate,
- .flag = rx_start->phy_flags,
+ .rate = iwl4965_hw_get_rate(rx_start->rate_n_flags),
+ .flag = 0,
+#ifdef CONFIG_IWL4965_HT_AGG
+ .ordered = 0
+#endif /* CONFIG_IWL4965_HT_AGG */
};
u8 network_packet;
@@ -3367,83 +3893,78 @@ static void iwl4965_rx_reply_rx(struct iwl_priv *priv,
header = (struct ieee80211_hdr *)((u8 *) & rx_start[1]
+ rx_start->cfg_phy_cnt);
- len = rx_start->byte_count;
- rx_end = (u32 *) (pkt->u.raw + rx_start->cfg_phy_cnt +
- sizeof(struct iwl4965_rx_phy_res) +
- rx_start->byte_count);
+ len = le16_to_cpu(rx_start->byte_count);
+ rx_end = (__le32 *) (pkt->u.raw + rx_start->cfg_phy_cnt +
+ sizeof(struct iwl4965_rx_phy_res) + len);
} else {
struct iwl4965_rx_mpdu_res_start *amsdu =
(struct iwl4965_rx_mpdu_res_start *)pkt->u.raw;
header = (void *)(pkt->u.raw +
- sizeof(struct iwl4965_rx_mpdu_res_start));
- len = amsdu->byte_count;
- rx_end =
- (u32 *) (pkt->u.raw +
- sizeof(struct iwl4965_rx_mpdu_res_start) +
- amsdu->byte_count);
+ sizeof(struct iwl4965_rx_mpdu_res_start));
+ len = le16_to_cpu(amsdu->byte_count);
+ rx_end = (__le32 *) (pkt->u.raw +
+ sizeof(struct iwl4965_rx_mpdu_res_start) + len);
}
if (!(*rx_end & RX_RES_STATUS_NO_CRC32_ERROR) ||
!(*rx_end & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
- IWL_DEBUG_RX("Bad CRC or FIFO: 0x%08X.\n", *rx_end);
+ IWL_DEBUG_RX("Bad CRC or FIFO: 0x%08X.\n",
+ le32_to_cpu(*rx_end));
return;
}
- stats.freq = ieee80211chan2mhz((stats.channel));
- stats.flag = 0;
+ priv->ucode_beacon_time = le32_to_cpu(rx_start->beacon_time_stamp);
+
+ stats.freq = ieee80211chan2mhz(stats.channel);
/* Find max signal strength (dBm) among 3 antenna/receiver chains */
stats.ssi = iwl4965_calc_rssi(rx_start);
- IWL_DEBUG_RX("Rssi %d, TSF %lu\n", stats.ssi,
- (long unsigned int)le64_to_cpu(rx_start->timestamp));
-
- /* Sensitivity algo, if used (only while associated, not scanning),
- * calculates signal-to-noise ratio in dB. Use this if available,
- * else calculate signal quality using only the signal strength. */
- if (priv->last_rx_snr && iwl_is_associated(priv) &&
- !(priv->status & STATUS_SCANNING)) {
- /* TODO: Find better noise level reference, use
- * in iwl_calc_sig_qual() */
- stats.noise = stats.ssi - priv->last_rx_snr;
- stats.signal = iwl_calc_sig_qual(stats.ssi, 0);
+ /* Meaningful noise values are available only from beacon statistics,
+ * which are gathered only when associated, and indicate noise
+ * only for the associated network channel ...
+ * Ignore these noise values while scanning (other channels) */
+ if (iwl4965_is_associated(priv) &&
+ !test_bit(STATUS_SCANNING, &priv->status)) {
+ stats.noise = priv->last_rx_noise;
+ stats.signal = iwl4965_calc_sig_qual(stats.ssi, stats.noise);
} else {
- stats.signal = iwl_calc_sig_qual(stats.ssi, 0);
-
- /* Reset noise values if not associated or snr not available. */
- /* Set default noise value to -127 ... this works better than
- * 0 when averaging frames with/without noise info;
- * measured dBm values are always negative ... using a
- * negative value as the default keeps all averages
- * within an s8's (used in some apps) range of negative
- * values. */
- priv->last_rx_snr = 0;
- priv->last_rx_noise = -127;
- stats.noise = -127;
- }
- IWL_DEBUG_STATS("Rssi %d noise %d qual %d snr db %d\n", stats.ssi,
- stats.noise, stats.signal, priv->last_rx_snr);
-
-#ifdef CONFIG_IWLWIFI_DEBUG
- /* TODO: Parts of iwl_report_frame are broken for 4965 */
- if (iwl_debug_level & (IWL_DL_RX))
+ stats.noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
+ stats.signal = iwl4965_calc_sig_qual(stats.ssi, 0);
+ }
+
+ /* Reset beacon noise level if not associated. */
+ if (!iwl4965_is_associated(priv))
+ priv->last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
+
+#ifdef CONFIG_IWL4965_DEBUG
+ /* TODO: Parts of iwl4965_report_frame are broken for 4965 */
+ if (iwl4965_debug_level & (IWL_DL_RX))
/* Set "1" to report good data frames in groups of 100 */
- iwl_report_frame(priv, pkt, header, 1);
+ iwl4965_report_frame(priv, pkt, header, 1);
+
+ if (iwl4965_debug_level & (IWL_DL_RX | IWL_DL_STATS))
+ IWL_DEBUG_RX("Rssi %d, noise %d, qual %d, TSF %lu\n",
+ stats.ssi, stats.noise, stats.signal,
+ (long unsigned int)le64_to_cpu(rx_start->timestamp));
#endif
- network_packet = iwl_is_network_packet(priv, header);
+ network_packet = iwl4965_is_network_packet(priv, header);
if (network_packet) {
priv->last_rx_rssi = stats.ssi;
- priv->last_rx_noise = stats.noise;
- priv->last_beacon_time = rx_start->beacon_time_stamp;
- priv->last_tsf = rx_start->timestamp;
+ priv->last_beacon_time = priv->ucode_beacon_time;
+ priv->last_tsf = le64_to_cpu(rx_start->timestamp);
}
fc = le16_to_cpu(header->frame_control);
- switch (WLAN_FC_GET_TYPE(fc)) {
+ switch (fc & IEEE80211_FCTL_FTYPE) {
case IEEE80211_FTYPE_MGMT:
- switch (WLAN_FC_GET_STYPE(fc)) {
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
+ iwl4965_update_ps_mode(priv, fc & IEEE80211_FCTL_PM,
+ header->addr2);
+ switch (fc & IEEE80211_FCTL_STYPE) {
case IEEE80211_STYPE_PROBE_RESP:
case IEEE80211_STYPE_BEACON:
if ((priv->iw_mode == IEEE80211_IF_TYPE_STA &&
@@ -3452,11 +3973,12 @@ static void iwl4965_rx_reply_rx(struct iwl_priv *priv,
!compare_ether_addr(header->addr3, priv->bssid))) {
struct ieee80211_mgmt *mgmt =
(struct ieee80211_mgmt *)header;
- u32 *pos;
+ u64 timestamp =
+ le64_to_cpu(mgmt->u.beacon.timestamp);
- pos = (u32 *) & mgmt->u.beacon.timestamp;
- priv->timestamp0 = le32_to_cpu(pos[0]);
- priv->timestamp1 = le32_to_cpu(pos[1]);
+ priv->timestamp0 = timestamp & 0xFFFFFFFF;
+ priv->timestamp1 =
+ (timestamp >> 32) & 0xFFFFFFFF;
priv->beacon_int = le16_to_cpu(
mgmt->u.beacon.beacon_int);
if (priv->call_post_assoc_from_beacon &&
@@ -3479,20 +4001,26 @@ static void iwl4965_rx_reply_rx(struct iwl_priv *priv,
*/
case IEEE80211_STYPE_ASSOC_RESP:
case IEEE80211_STYPE_REASSOC_RESP:
- if (network_packet && iwl_is_associated(priv)) {
-#ifdef CONFIG_IWLWIFI_HT
+ if (network_packet) {
+#ifdef CONFIG_IWL4965_HT
u8 *pos = NULL;
struct ieee802_11_elems elems;
-#endif /*CONFIG_IWLWIFI_HT */
+#endif /*CONFIG_IWL4965_HT */
struct ieee80211_mgmt *mgnt =
(struct ieee80211_mgmt *)header;
+ /* We have just associated, give some
+ * time for the 4-way handshake if
+ * any. Don't start scan too early. */
+ priv->next_scan_jiffies = jiffies +
+ IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
+
priv->assoc_id = (~((1 << 15) | (1 << 14))
- & mgnt->u.assoc_resp.aid);
+ & le16_to_cpu(mgnt->u.assoc_resp.aid));
priv->assoc_capability =
le16_to_cpu(
mgnt->u.assoc_resp.capab_info);
-#ifdef CONFIG_IWLWIFI_HT
+#ifdef CONFIG_IWL4965_HT
pos = mgnt->u.assoc_resp.variable;
if (!parse_elems(pos,
len - (pos - (u8 *) mgnt),
@@ -3501,7 +4029,7 @@ static void iwl4965_rx_reply_rx(struct iwl_priv *priv,
elems.ht_cap_param)
break;
}
-#endif /*CONFIG_IWLWIFI_HT */
+#endif /*CONFIG_IWL4965_HT */
/* assoc_id is 0 no association */
if (!priv->assoc_id)
break;
@@ -3516,13 +4044,16 @@ static void iwl4965_rx_reply_rx(struct iwl_priv *priv,
case IEEE80211_STYPE_PROBE_REQ:
if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
- !iwl_is_associated(priv)) {
+ !iwl4965_is_associated(priv)) {
+ DECLARE_MAC_BUF(mac1);
+ DECLARE_MAC_BUF(mac2);
+ DECLARE_MAC_BUF(mac3);
+
IWL_DEBUG_DROP("Dropping (non network): "
- MAC_FMT ", " MAC_FMT ", "
- MAC_FMT "\n",
- MAC_ARG(header->addr1),
- MAC_ARG(header->addr2),
- MAC_ARG(header->addr3));
+ "%s, %s, %s\n",
+ print_mac(mac1, header->addr1),
+ print_mac(mac2, header->addr2),
+ print_mac(mac3, header->addr3));
return;
}
}
@@ -3530,49 +4061,45 @@ static void iwl4965_rx_reply_rx(struct iwl_priv *priv,
break;
case IEEE80211_FTYPE_CTL:
+#ifdef CONFIG_IWL4965_HT_AGG
+ switch (fc & IEEE80211_FCTL_STYPE) {
+ case IEEE80211_STYPE_BACK_REQ:
+ IWL_DEBUG_HT("IEEE80211_STYPE_BACK_REQ arrived\n");
+ iwl4965_handle_data_packet(priv, 0, include_phy,
+ rxb, &stats);
+ break;
+ default:
+ break;
+ }
+#endif
+
break;
- case IEEE80211_FTYPE_DATA:
- /* FIXME - patch for PS in AP mode */
- if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
- u8 sta_id = iwl_hw_find_station(priv, header->addr2);
- u8 sta_awake;
- u16 ps_bit;
-
- if (sta_id == IWL_INVALID_STATION)
- break;
-
- sta_awake = (priv->stations[sta_id].ps_status ==
- STA_PS_STATUS_WAKE);
- ps_bit = (header->frame_control &
- cpu_to_le16(IEEE80211_FCTL_PM));
- if (sta_awake && ps_bit) {
- priv->stations[sta_id].ps_status =
- STA_PS_STATUS_SLEEP;
- } else if (!sta_awake && !ps_bit) {
- iwl4965_sta_modify_ps_wake(priv, sta_id);
- priv->stations[sta_id].ps_status =
- STA_PS_STATUS_WAKE;
- }
- }
+ case IEEE80211_FTYPE_DATA: {
+ DECLARE_MAC_BUF(mac1);
+ DECLARE_MAC_BUF(mac2);
+ DECLARE_MAC_BUF(mac3);
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
+ iwl4965_update_ps_mode(priv, fc & IEEE80211_FCTL_PM,
+ header->addr2);
if (unlikely(!network_packet))
IWL_DEBUG_DROP("Dropping (non network): "
- MAC_FMT ", " MAC_FMT ", "
- MAC_FMT "\n",
- MAC_ARG(header->addr1),
- MAC_ARG(header->addr2),
- MAC_ARG(header->addr3));
- else if (unlikely(is_duplicate_packet(priv, header)))
- IWL_DEBUG_DROP("Dropping (dup): " MAC_FMT ", "
- MAC_FMT ", " MAC_FMT "\n",
- MAC_ARG(header->addr1),
- MAC_ARG(header->addr2),
- MAC_ARG(header->addr3));
+ "%s, %s, %s\n",
+ print_mac(mac1, header->addr1),
+ print_mac(mac2, header->addr2),
+ print_mac(mac3, header->addr3));
+ else if (unlikely(iwl4965_is_duplicate_packet(priv, header)))
+ IWL_DEBUG_DROP("Dropping (dup): %s, %s, %s\n",
+ print_mac(mac1, header->addr1),
+ print_mac(mac2, header->addr2),
+ print_mac(mac3, header->addr3));
else
iwl4965_handle_data_packet(priv, 1, include_phy, rxb,
&stats);
break;
+ }
default:
break;
@@ -3581,140 +4108,435 @@ static void iwl4965_rx_reply_rx(struct iwl_priv *priv,
/* Cache phy data (Rx signal strength, etc) for HT frame (REPLY_RX_PHY_CMD).
* This will be used later in iwl4965_rx_reply_rx() for REPLY_RX_MPDU_CMD. */
-static void iwl4965_rx_reply_rx_phy(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
+static void iwl4965_rx_reply_rx_phy(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
priv->last_phy_res[0] = 1;
memcpy(&priv->last_phy_res[1], &(pkt->u.raw[0]),
sizeof(struct iwl4965_rx_phy_res));
}
-static void iwl4965_rx_missed_beacon_notif (struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
+static void iwl4965_rx_missed_beacon_notif(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
{
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_missed_beacon_notif *missed_beacon;
+#ifdef CONFIG_IWL4965_SENSITIVITY
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_missed_beacon_notif *missed_beacon;
missed_beacon = &pkt->u.missed_beacon;
- if (missed_beacon->consequtive_missed_beacons > 5) {
+ if (le32_to_cpu(missed_beacon->consequtive_missed_beacons) > 5) {
IWL_DEBUG_CALIB("missed bcn cnsq %d totl %d rcd %d expctd %d\n",
- missed_beacon->consequtive_missed_beacons,
- missed_beacon->total_missed_becons,
- missed_beacon->num_recvd_beacons,
- missed_beacon->num_expected_beacons);
+ le32_to_cpu(missed_beacon->consequtive_missed_beacons),
+ le32_to_cpu(missed_beacon->total_missed_becons),
+ le32_to_cpu(missed_beacon->num_recvd_beacons),
+ le32_to_cpu(missed_beacon->num_expected_beacons));
priv->sensitivity_data.state = IWL_SENS_CALIB_NEED_REINIT;
- if (unlikely(!(priv->status & STATUS_SCANNING)))
+ if (unlikely(!test_bit(STATUS_SCANNING, &priv->status)))
queue_work(priv->workqueue, &priv->sensitivity_work);
}
-#endif /*CONFIG_IWLWIFI_SENSITIVITY*/
+#endif /*CONFIG_IWL4965_SENSITIVITY*/
+}
+
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+
+/**
+ * iwl4965_set_tx_status - Update driver's record of one Tx frame's status
+ *
+ * This will get sent to mac80211.
+ */
+static void iwl4965_set_tx_status(struct iwl4965_priv *priv, int txq_id, int idx,
+ u32 status, u32 retry_count, u32 rate)
+{
+ struct ieee80211_tx_status *tx_status =
+ &(priv->txq[txq_id].txb[idx].status);
+
+ tx_status->flags = status ? IEEE80211_TX_STATUS_ACK : 0;
+ tx_status->retry_count += retry_count;
+ tx_status->control.tx_rate = rate;
}
-#ifdef CONFIG_IWLWIFI_HT_AGG
-static void iwl4965_rx_reply_compressed_ba(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
+/**
+ * iwl4965_sta_modify_enable_tid_tx - Enable Tx for this TID in station table
+ */
+static void iwl4965_sta_modify_enable_tid_tx(struct iwl4965_priv *priv,
+ int sta_id, int tid)
{
- struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
- struct iwl_compressed_ba_resp *compressed_ba = &pkt->u.compressed_ba;
- int index = iwl_queue_dec_wrap(compressed_ba->scd_ssn & 0xff, 0xff);
- struct iwl_tx_queue *txq = NULL;
+ unsigned long flags;
+
+ /* Remove "disable" flag, to enable Tx for this TID */
+ spin_lock_irqsave(&priv->sta_lock, flags);
+ priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX;
+ priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid));
+ priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+}
+
+
+/**
+ * iwl4965_tx_status_reply_compressed_ba - Update tx status from block-ack
+ *
+ * Go through block-ack's bitmap of ACK'd frames, update driver's record of
+ * ACK vs. not. This gets sent to mac80211, then to rate scaling algo.
+ */
+static int iwl4965_tx_status_reply_compressed_ba(struct iwl4965_priv *priv,
+ struct iwl4965_ht_agg *agg,
+ struct iwl4965_compressed_ba_resp*
+ ba_resp)
+
+{
+ int i, sh, ack;
+ u16 ba_seq_ctl = le16_to_cpu(ba_resp->ba_seq_ctl);
+ u32 bitmap0, bitmap1;
+ u32 resp_bitmap0 = le32_to_cpu(ba_resp->ba_bitmap0);
+ u32 resp_bitmap1 = le32_to_cpu(ba_resp->ba_bitmap1);
+
+ if (unlikely(!agg->wait_for_ba)) {
+ IWL_ERROR("Received BA when not expected\n");
+ return -EINVAL;
+ }
+
+ /* Mark that the expected block-ack response arrived */
+ agg->wait_for_ba = 0;
+ IWL_DEBUG_TX_REPLY("BA %d %d\n", agg->start_idx, ba_resp->ba_seq_ctl);
+
+ /* Calculate shift to align block-ack bits with our Tx window bits */
+ sh = agg->start_idx - SEQ_TO_INDEX(ba_seq_ctl>>4);
+ if (sh < 0) /* tbw something is wrong with indices */
+ sh += 0x100;
+
+ /* don't use 64-bit values for now */
+ bitmap0 = resp_bitmap0 >> sh;
+ bitmap1 = resp_bitmap1 >> sh;
+ bitmap0 |= (resp_bitmap1 & ((1<<sh)|((1<<sh)-1))) << (32 - sh);
+
+ if (agg->frame_count > (64 - sh)) {
+ IWL_DEBUG_TX_REPLY("more frames than bitmap size");
+ return -1;
+ }
- BUG_ON(compressed_ba->scd_flow >= ARRAY_SIZE(priv->txq));
- txq = &priv->txq[compressed_ba->scd_flow];
+ /* check for success or failure according to the
+ * transmitted bitmap and block-ack bitmap */
+ bitmap0 &= agg->bitmap0;
+ bitmap1 &= agg->bitmap1;
+
+ /* For each frame attempted in aggregation,
+ * update driver's record of tx frame's status. */
+ for (i = 0; i < agg->frame_count ; i++) {
+ int idx = (agg->start_idx + i) & 0xff;
+ ack = bitmap0 & (1 << i);
+ IWL_DEBUG_TX_REPLY("%s ON i=%d idx=%d raw=%d\n",
+ ack? "ACK":"NACK", i, idx, agg->start_idx + i);
+ iwl4965_set_tx_status(priv, agg->txq_id, idx, ack, 0,
+ agg->rate_n_flags);
- /* TODO: Need to get this copy more sefely - now good for debug */
- IWL_DEBUG_TX_REPLY("REPLY_COMPRESSED_BA Received from " MAC_FMT
- " , sta_id = %d\n",
- MAC_ARG((u8 *) & compressed_ba->sta_addr_lo32),
- compressed_ba->sta_id);
- IWL_DEBUG_TX_REPLY
- ("TID = %d, seq_ctl = %d, bitmap = 0x%x%x, scd_flow = %d, "
- "scd_ssn = %d\n",
- compressed_ba->tid, compressed_ba->ba_seq_ctl,
- compressed_ba->ba_bitmap0, compressed_ba->ba_bitmap1,
- compressed_ba->scd_flow, compressed_ba->scd_ssn);
+ }
- /* releases all the TFDs until the SSN */
- if (txq->q.last_used != (compressed_ba->scd_ssn & 0xff))
- iwl_tx_queue_reclaim(priv, compressed_ba->scd_flow, index);
+ IWL_DEBUG_TX_REPLY("Bitmap %x%x\n", bitmap0, bitmap1);
+ return 0;
+}
+
+/**
+ * iwl4965_queue_dec_wrap - Decrement queue index, wrap back to end if needed
+ * @index -- current index
+ * @n_bd -- total number of entries in queue (s/b power of 2)
+ */
+static inline int iwl4965_queue_dec_wrap(int index, int n_bd)
+{
+ return (index == 0) ? n_bd - 1 : index - 1;
}
-#endif /* CONFIG_IWLWIFI_HT_AGG */
+/**
+ * iwl4965_rx_reply_compressed_ba - Handler for REPLY_COMPRESSED_BA
+ *
+ * Handles block-acknowledge notification from device, which reports success
+ * of frames sent via aggregation.
+ */
+static void iwl4965_rx_reply_compressed_ba(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba;
+ int index;
+ struct iwl4965_tx_queue *txq = NULL;
+ struct iwl4965_ht_agg *agg;
+
+ /* "flow" corresponds to Tx queue */
+ u16 ba_resp_scd_flow = le16_to_cpu(ba_resp->scd_flow);
+
+ /* "ssn" is start of block-ack Tx window, corresponds to index
+ * (in Tx queue's circular buffer) of first TFD/frame in window */
+ u16 ba_resp_scd_ssn = le16_to_cpu(ba_resp->scd_ssn);
+
+ if (ba_resp_scd_flow >= ARRAY_SIZE(priv->txq)) {
+ IWL_ERROR("BUG_ON scd_flow is bigger than number of queues");
+ return;
+ }
+
+ txq = &priv->txq[ba_resp_scd_flow];
+ agg = &priv->stations[ba_resp->sta_id].tid[ba_resp->tid].agg;
+
+ /* Find index just before block-ack window */
+ index = iwl4965_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);
+
+ /* TODO: Need to get this copy more safely - now good for debug */
/*
- * RATE SCALE CODE
+ {
+ DECLARE_MAC_BUF(mac);
+ IWL_DEBUG_TX_REPLY("REPLY_COMPRESSED_BA [%d]Received from %s, "
+ "sta_id = %d\n",
+ agg->wait_for_ba,
+ print_mac(mac, (u8*) &ba_resp->sta_addr_lo32),
+ ba_resp->sta_id);
+ IWL_DEBUG_TX_REPLY("TID = %d, SeqCtl = %d, bitmap = 0x%X%X, scd_flow = "
+ "%d, scd_ssn = %d\n",
+ ba_resp->tid,
+ ba_resp->ba_seq_ctl,
+ ba_resp->ba_bitmap1,
+ ba_resp->ba_bitmap0,
+ ba_resp->scd_flow,
+ ba_resp->scd_ssn);
+ IWL_DEBUG_TX_REPLY("DAT start_idx = %d, bitmap = 0x%X%X \n",
+ agg->start_idx,
+ agg->bitmap1,
+ agg->bitmap0);
+ }
+*/
+
+ /* Update driver's record of ACK vs. not for each frame in window */
+ iwl4965_tx_status_reply_compressed_ba(priv, agg, ba_resp);
+
+ /* Release all TFDs before the SSN, i.e. all TFDs in front of
+ * block-ack window (we assume that they've been successfully
+ * transmitted ... if not, it's too late anyway). */
+ if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff))
+ iwl4965_tx_queue_reclaim(priv, ba_resp_scd_flow, index);
+
+}
+
+
+/**
+ * iwl4965_tx_queue_stop_scheduler - Stop queue, but keep configuration
*/
-int iwl4965_init_hw_rates(struct iwl_priv *priv, struct ieee80211_rate *rates)
+static void iwl4965_tx_queue_stop_scheduler(struct iwl4965_priv *priv, u16 txq_id)
{
+ /* Simply stop the queue, but don't change any configuration;
+ * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */
+ iwl4965_write_prph(priv,
+ KDR_SCD_QUEUE_STATUS_BITS(txq_id),
+ (0 << SCD_QUEUE_STTS_REG_POS_ACTIVE)|
+ (1 << SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
+}
+
+/**
+ * iwl4965_tx_queue_set_q2ratid - Map unique receiver/tid combination to a queue
+ */
+static int iwl4965_tx_queue_set_q2ratid(struct iwl4965_priv *priv, u16 ra_tid,
+ u16 txq_id)
+{
+ u32 tbl_dw_addr;
+ u32 tbl_dw;
+ u16 scd_q2ratid;
+
+ scd_q2ratid = ra_tid & SCD_QUEUE_RA_TID_MAP_RATID_MSK;
+
+ tbl_dw_addr = priv->scd_base_addr +
+ SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id);
+
+ tbl_dw = iwl4965_read_targ_mem(priv, tbl_dw_addr);
+
+ if (txq_id & 0x1)
+ tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF);
+ else
+ tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000);
+
+ iwl4965_write_targ_mem(priv, tbl_dw_addr, tbl_dw);
+
+ return 0;
+}
+
+/**
+ * iwl4965_tx_queue_agg_enable - Set up & enable aggregation for selected queue
+ *
+ * NOTE: txq_id must be greater than IWL_BACK_QUEUE_FIRST_ID,
+ * i.e. it must be one of the higher queues used for aggregation
+ */
+static int iwl4965_tx_queue_agg_enable(struct iwl4965_priv *priv, int txq_id,
+ int tx_fifo, int sta_id, int tid,
+ u16 ssn_idx)
+{
+ unsigned long flags;
+ int rc;
+ u16 ra_tid;
+
+ if (IWL_BACK_QUEUE_FIRST_ID > txq_id)
+ IWL_WARNING("queue number too small: %d, must be > %d\n",
+ txq_id, IWL_BACK_QUEUE_FIRST_ID);
+
+ ra_tid = BUILD_RAxTID(sta_id, tid);
+
+ /* Modify device's station table to Tx this TID */
+ iwl4965_sta_modify_enable_tid_tx(priv, sta_id, tid);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ rc = iwl4965_grab_nic_access(priv);
+ if (rc) {
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return rc;
+ }
+
+ /* Stop this Tx queue before configuring it */
+ iwl4965_tx_queue_stop_scheduler(priv, txq_id);
+
+ /* Map receiver-address / traffic-ID to this queue */
+ iwl4965_tx_queue_set_q2ratid(priv, ra_tid, txq_id);
+
+ /* Set this queue as a chain-building queue */
+ iwl4965_set_bits_prph(priv, KDR_SCD_QUEUECHAIN_SEL, (1<<txq_id));
+
+ /* Place first TFD at index corresponding to start sequence number.
+ * Assumes that ssn_idx is valid (!= 0xFFF) */
+ priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
+ priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
+ iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
+
+ /* Set up Tx window size and frame limit for this queue */
+ iwl4965_write_targ_mem(priv,
+ priv->scd_base_addr + SCD_CONTEXT_QUEUE_OFFSET(txq_id),
+ (SCD_WIN_SIZE << SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) &
+ SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK);
+
+ iwl4965_write_targ_mem(priv, priv->scd_base_addr +
+ SCD_CONTEXT_QUEUE_OFFSET(txq_id) + sizeof(u32),
+ (SCD_FRAME_LIMIT << SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS)
+ & SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK);
+
+ iwl4965_set_bits_prph(priv, KDR_SCD_INTERRUPT_MASK, (1 << txq_id));
+
+ /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */
+ iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1);
+
+ iwl4965_release_nic_access(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return 0;
+}
+
+/**
+ * txq_id must be greater than IWL_BACK_QUEUE_FIRST_ID
+ */
+static int iwl4965_tx_queue_agg_disable(struct iwl4965_priv *priv, u16 txq_id,
+ u16 ssn_idx, u8 tx_fifo)
+{
+ unsigned long flags;
+ int rc;
+
+ if (IWL_BACK_QUEUE_FIRST_ID > txq_id) {
+ IWL_WARNING("queue number too small: %d, must be > %d\n",
+ txq_id, IWL_BACK_QUEUE_FIRST_ID);
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+ rc = iwl4965_grab_nic_access(priv);
+ if (rc) {
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return rc;
+ }
+
+ iwl4965_tx_queue_stop_scheduler(priv, txq_id);
+
+ iwl4965_clear_bits_prph(priv, KDR_SCD_QUEUECHAIN_SEL, (1 << txq_id));
+
+ priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
+ priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
+ /* supposes that ssn_idx is valid (!= 0xFFF) */
+ iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
+
+ iwl4965_clear_bits_prph(priv, KDR_SCD_INTERRUPT_MASK, (1 << txq_id));
+ iwl4965_txq_ctx_deactivate(priv, txq_id);
+ iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0);
+
+ iwl4965_release_nic_access(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
return 0;
}
+#endif/* CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
/**
* iwl4965_add_station - Initialize a station's hardware rate table
*
- * The uCode contains a table of fallback rates and retries per rate
+ * The uCode's station table contains a table of fallback rates
* for automatic fallback during transmission.
*
- * NOTE: This initializes the table for a single retry per data rate
- * which is not optimal. Setting up an intelligent retry per rate
- * requires feedback from transmission, which isn't exposed through
- * rc80211_simple which is what this driver is currently using.
+ * NOTE: This sets up a default set of values. These will be replaced later
+ * if the driver's iwl-4965-rs rate scaling algorithm is used, instead of
+ * rc80211_simple.
*
+ * NOTE: Run REPLY_ADD_STA command to set up station table entry, before
+ * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD,
+ * which requires station table entry to exist).
*/
-void iwl4965_add_station(struct iwl_priv *priv, const u8 * addr, int is_ap)
+void iwl4965_add_station(struct iwl4965_priv *priv, const u8 *addr, int is_ap)
{
int i, r;
- struct iwl_link_quality_cmd link_cmd = {
+ struct iwl4965_link_quality_cmd link_cmd = {
.reserved1 = 0,
};
- struct iwl_rate *table = link_cmd.rate_scale_table;
+ u16 rate_flags;
- /* Set up the rate scaling to start at 54M and fallback
- * all the way to 1M in IEEE order and then spin on IEEE */
- i = 0;
+ /* Set up the rate scaling to start at selected rate, fall back
+ * all the way down to 1M in IEEE order, and then spin on 1M */
if (is_ap)
r = IWL_RATE_54M_INDEX;
- else if ((priv->phymode == MODE_IEEE80211A) ||
- (priv->phymode == MODE_ATHEROS_TURBO))
+ else if (priv->phymode == MODE_IEEE80211A)
r = IWL_RATE_6M_INDEX;
else
r = IWL_RATE_1M_INDEX;
- while (i < LINK_QUAL_MAX_RETRY_NUM) {
- if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE) {
- table[i].rate_n_flags |= RATE_MCS_CCK_MSK;
- }
- table[i].s.rate = iwl_rates[r].plcp;
- table[i].rate_n_flags |= RATE_MCS_ANT_B_MSK;
- table[i].rate_n_flags &= ~RATE_MCS_ANT_A_MSK;
- r = iwl_get_prev_ieee_rate(r);
- i++;
+ for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
+ rate_flags = 0;
+ if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE)
+ rate_flags |= RATE_MCS_CCK_MSK;
+
+ /* Use Tx antenna B only */
+ rate_flags |= RATE_MCS_ANT_B_MSK;
+ rate_flags &= ~RATE_MCS_ANT_A_MSK;
+
+ link_cmd.rs_table[i].rate_n_flags =
+ iwl4965_hw_set_rate_n_flags(iwl4965_rates[r].plcp, rate_flags);
+ r = iwl4965_get_prev_ieee_rate(r);
}
link_cmd.general_params.single_stream_ant_msk = 2;
link_cmd.general_params.dual_stream_ant_msk = 3;
link_cmd.agg_params.agg_dis_start_th = 3;
- link_cmd.agg_params.agg_time_limit = 4000;
+ link_cmd.agg_params.agg_time_limit = cpu_to_le16(4000);
/* Update the rate scaling for control frame Tx to AP */
- link_cmd.sta_id = is_ap ? IWL_AP_ID : IWL_BROADCAST_ID;
+ link_cmd.sta_id = is_ap ? IWL_AP_ID : IWL4965_BROADCAST_ID;
- iwl_send_cmd_pdu(priv, REPLY_TX_LINK_QUALITY_CMD, sizeof(link_cmd),
+ iwl4965_send_cmd_pdu(priv, REPLY_TX_LINK_QUALITY_CMD, sizeof(link_cmd),
&link_cmd);
}
-#ifdef CONFIG_IWLWIFI_HT
+#ifdef CONFIG_IWL4965_HT
-static u8 iwl_is_channel_extension(struct iwl_priv *priv, int phymode,
- int channel, u8 extension_chan_offset)
+static u8 iwl4965_is_channel_extension(struct iwl4965_priv *priv, int phymode,
+ u16 channel, u8 extension_chan_offset)
{
- const struct iwl_channel_info *ch_info;
+ const struct iwl4965_channel_info *ch_info;
- ch_info = iwl_get_channel_info(priv, phymode, channel);
+ ch_info = iwl4965_get_channel_info(priv, phymode, channel);
if (!is_channel_valid(ch_info))
return 0;
@@ -3728,165 +4550,310 @@ static u8 iwl_is_channel_extension(struct iwl_priv *priv, int phymode,
return 0;
}
-static u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
- const struct sta_ht_info *ht_info)
+static u8 iwl4965_is_fat_tx_allowed(struct iwl4965_priv *priv,
+ struct ieee80211_ht_info *sta_ht_inf)
{
+ struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config;
- if (priv->channel_width != IWL_CHANNEL_WIDTH_40MHZ)
- return 0;
-
- if (ht_info->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ)
+ if ((!iwl_ht_conf->is_ht) ||
+ (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) ||
+ (iwl_ht_conf->extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_AUTO))
return 0;
- if (ht_info->extension_chan_offset == IWL_EXT_CHANNEL_OFFSET_AUTO)
- return 0;
+ if (sta_ht_inf) {
+ if ((!sta_ht_inf->ht_supported) ||
+ (!sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH))
+ return 0;
+ }
- /* no fat tx allowed on 2.4GHZ */
- if ((priv->phymode != MODE_IEEE80211A) &&
- (priv->phymode != MODE_ATHEROS_TURBO))
- return 0;
- return (iwl_is_channel_extension(priv, priv->phymode,
- ht_info->control_chan,
- ht_info->extension_chan_offset));
+ return (iwl4965_is_channel_extension(priv, priv->phymode,
+ iwl_ht_conf->control_channel,
+ iwl_ht_conf->extension_chan_offset));
}
-void iwl4965_set_rxon_ht(struct iwl_priv *priv,
- struct sta_ht_info *ht_info)
+void iwl4965_set_rxon_ht(struct iwl4965_priv *priv, struct iwl_ht_info *ht_info)
{
- struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
+ struct iwl4965_rxon_cmd *rxon = &priv->staging_rxon;
u32 val;
if (!ht_info->is_ht)
return;
- if (iwl_is_fat_tx_allowed(priv, ht_info))
+ /* Set up channel bandwidth: 20 MHz only, or 20/40 mixed if fat ok */
+ if (iwl4965_is_fat_tx_allowed(priv, NULL))
rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED_MSK;
else
- rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY_MSK;
+ rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
+ RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
- if (rxon->channel != ht_info->control_chan) {
+ if (le16_to_cpu(rxon->channel) != ht_info->control_channel) {
IWL_DEBUG_ASSOC("control diff than current %d %d\n",
- rxon->channel, ht_info->control_chan);
- rxon->channel = ht_info->control_chan;
+ le16_to_cpu(rxon->channel),
+ ht_info->control_channel);
+ rxon->channel = cpu_to_le16(ht_info->control_channel);
return;
}
- rxon->flags &= ~RXON_FLG_CONTROL_CHANNEL_LOCATION_MSK;
-
+ /* Note: control channel is opposite of extension channel */
switch (ht_info->extension_chan_offset) {
case IWL_EXT_CHANNEL_OFFSET_ABOVE:
- rxon->flags |= RXON_FLG_CONTROL_CHANNEL_LOC_LOW_MSK;
+ rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
break;
case IWL_EXT_CHANNEL_OFFSET_BELOW:
- rxon->flags |= RXON_FLG_CONTROL_CHANNEL_LOC_HIGH_MSK;
+ rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
break;
case IWL_EXT_CHANNEL_OFFSET_AUTO:
rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK;
break;
default:
+ rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK;
break;
}
- val = ht_info->operating_mode;
+ val = ht_info->ht_protection;
- rxon->flags |= val << RXON_FLG_HT_OPERATING_MODE_POS;
+ rxon->flags |= cpu_to_le32(val << RXON_FLG_HT_OPERATING_MODE_POS);
- priv->active_rate_ht[0] = ht_info->supp_rates[0];
- priv->active_rate_ht[1] = ht_info->supp_rates[1];
iwl4965_set_rxon_chain(priv);
IWL_DEBUG_ASSOC("supported HT rate 0x%X %X "
- "falgs 0x%X operation 0x%X\n",
- priv->active_rate_ht[0], priv->active_rate_ht[1],
- rxon->flags, ht_info->operating_mode);
+ "rxon flags 0x%X operation mode :0x%X "
+ "extension channel offset 0x%x "
+ "control chan %d\n",
+ ht_info->supp_mcs_set[0], ht_info->supp_mcs_set[1],
+ le32_to_cpu(rxon->flags), ht_info->ht_protection,
+ ht_info->extension_chan_offset,
+ ht_info->control_channel);
return;
}
-void iwl4965_set_ht_add_station(struct iwl_priv *priv,
- u8 index, u8 need_to_lock)
-{
- u32 val;
- u32 sta_rate;
- u32 sta_flag;
- unsigned long flags = 0;
- u8 i = index;
- struct sta_ht_info *ht_info = &priv->current_assoc_ht;
- if (need_to_lock)
- spin_lock_irqsave(&priv->sta_lock, flags);
+void iwl4965_set_ht_add_station(struct iwl4965_priv *priv, u8 index,
+ struct ieee80211_ht_info *sta_ht_inf)
+{
+ __le32 sta_flags;
- priv->current_channel_width = IWL_CHANNEL_WIDTH_20MHZ;
- if (!ht_info->is_ht)
+ if (!sta_ht_inf || !sta_ht_inf->ht_supported)
goto done;
- sta_rate = priv->stations[i].sta.tx_rate.rate_n_flags;
- sta_flag = priv->stations[i].sta.station_flags;
+ sta_flags = priv->stations[index].sta.station_flags;
- if (ht_info->tx_mimo_ps_mode == IWL_MIMO_PS_DYNAMIC)
- sta_flag |= STA_FLG_RTS_MIMO_PROT_MSK;
+ if (((sta_ht_inf->cap & IEEE80211_HT_CAP_MIMO_PS >> 2))
+ == IWL_MIMO_PS_DYNAMIC)
+ sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
else
- sta_flag &= ~STA_FLG_RTS_MIMO_PROT_MSK;
+ sta_flags &= ~STA_FLG_RTS_MIMO_PROT_MSK;
- val = (u32) ht_info->ampdu_factor;
- sta_flag |= val << STA_FLG_MAX_AGG_SIZE_POS;
+ sta_flags |= cpu_to_le32(
+ (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
- val = (u32) ht_info->mpdu_density;
- sta_flag |= val << STA_FLG_AGG_MPDU_DENSITY_POS;
+ sta_flags |= cpu_to_le32(
+ (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
- if ((ht_info->sgf & HT_SHORT_GI_20MHZ_ONLY) &&
- (ht_info->sgf & HT_SHORT_GI_40MHZ_ONLY)) {
- val = 1;
- sta_rate |= ((val << RATE_MCS_SGI_POS) & RATE_MCS_SGI_MSK);
- }
+ if (iwl4965_is_fat_tx_allowed(priv, sta_ht_inf))
+ sta_flags |= STA_FLG_FAT_EN_MSK;
+ else
+ sta_flags &= (~STA_FLG_FAT_EN_MSK);
- val = ht_info->is_green_field;
- sta_rate |= ((val << RATE_MCS_GF_POS) & RATE_MCS_GF_MSK);
+ priv->stations[index].sta.station_flags = sta_flags;
+ done:
+ return;
+}
- sta_rate &= (~RATE_MCS_FAT_MSK);
- sta_flag &= (~STA_FLG_FAT_EN_MSK);
+#ifdef CONFIG_IWL4965_HT_AGG
- ht_info->tx_chan_width = IWL_CHANNEL_WIDTH_20MHZ;
- ht_info->chan_width_cap = IWL_CHANNEL_WIDTH_20MHZ;
+static void iwl4965_sta_modify_add_ba_tid(struct iwl4965_priv *priv,
+ int sta_id, int tid, u16 ssn)
+{
+ unsigned long flags;
- if (iwl_is_fat_tx_allowed(priv, ht_info)) {
- sta_flag |= STA_FLG_FAT_EN_MSK;
- ht_info->chan_width_cap = IWL_CHANNEL_WIDTH_40MHZ;
+ spin_lock_irqsave(&priv->sta_lock, flags);
+ priv->stations[sta_id].sta.station_flags_msk = 0;
+ priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
+ priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid;
+ priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
+ priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
- if (ht_info->supported_chan_width == IWL_CHANNEL_WIDTH_40MHZ) {
- sta_rate |= RATE_MCS_FAT_MSK;
- ht_info->tx_chan_width = IWL_CHANNEL_WIDTH_40MHZ;
- }
+ iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+}
+
+static void iwl4965_sta_modify_del_ba_tid(struct iwl4965_priv *priv,
+ int sta_id, int tid)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+ priv->stations[sta_id].sta.station_flags_msk = 0;
+ priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
+ priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid;
+ priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+}
+
+static const u16 default_tid_to_tx_fifo[] = {
+ IWL_TX_FIFO_AC1,
+ IWL_TX_FIFO_AC0,
+ IWL_TX_FIFO_AC0,
+ IWL_TX_FIFO_AC1,
+ IWL_TX_FIFO_AC2,
+ IWL_TX_FIFO_AC2,
+ IWL_TX_FIFO_AC3,
+ IWL_TX_FIFO_AC3,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_NONE,
+ IWL_TX_FIFO_AC3
+};
+
+/*
+ * Find first available (lowest unused) Tx Queue, mark it "active".
+ * Called only when finding queue for aggregation.
+ * Should never return anything < 7, because they should already
+ * be in use as EDCA AC (0-3), Command (4), HCCA (5, 6).
+ */
+static int iwl4965_txq_ctx_activate_free(struct iwl4965_priv *priv)
+{
+ int txq_id;
+
+ for (txq_id = 0; txq_id < priv->hw_setting.max_txq_num; txq_id++)
+ if (!test_and_set_bit(txq_id, &priv->txq_ctx_active_msk))
+ return txq_id;
+ return -1;
+}
+
+int iwl4965_mac_ht_tx_agg_start(struct ieee80211_hw *hw, u8 *da, u16 tid,
+ u16 *start_seq_num)
+{
+
+ struct iwl4965_priv *priv = hw->priv;
+ int sta_id;
+ int tx_fifo;
+ int txq_id;
+ int ssn = -1;
+ unsigned long flags;
+ struct iwl4965_tid_data *tid_data;
+ DECLARE_MAC_BUF(mac);
+
+ /* Determine Tx DMA/FIFO channel for this Traffic ID */
+ if (likely(tid < ARRAY_SIZE(default_tid_to_tx_fifo)))
+ tx_fifo = default_tid_to_tx_fifo[tid];
+ else
+ return -EINVAL;
+
+ IWL_WARNING("iwl-AGG iwl4965_mac_ht_tx_agg_start on da=%s"
+ " tid=%d\n", print_mac(mac, da), tid);
+
+ /* Get index into station table */
+ sta_id = iwl4965_hw_find_station(priv, da);
+ if (sta_id == IWL_INVALID_STATION)
+ return -ENXIO;
+
+ /* Find available Tx queue for aggregation */
+ txq_id = iwl4965_txq_ctx_activate_free(priv);
+ if (txq_id == -1)
+ return -ENXIO;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+ tid_data = &priv->stations[sta_id].tid[tid];
+
+ /* Get starting sequence number for 1st frame in block ack window.
+ * We'll use least signif byte as 1st frame's index into Tx queue. */
+ ssn = SEQ_TO_SN(tid_data->seq_number);
+ tid_data->agg.txq_id = txq_id;
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ *start_seq_num = ssn;
+
+ /* Update driver's link quality manager */
+ iwl4965_ba_status(priv, tid, BA_STATUS_ACTIVE);
+
+ /* Set up and enable aggregation for selected Tx queue and FIFO */
+ return iwl4965_tx_queue_agg_enable(priv, txq_id, tx_fifo,
+ sta_id, tid, ssn);
+}
+
+
+int iwl4965_mac_ht_tx_agg_stop(struct ieee80211_hw *hw, u8 *da, u16 tid,
+ int generator)
+{
+
+ struct iwl4965_priv *priv = hw->priv;
+ int tx_fifo_id, txq_id, sta_id, ssn = -1;
+ struct iwl4965_tid_data *tid_data;
+ int rc;
+ DECLARE_MAC_BUF(mac);
+
+ if (!da) {
+ IWL_ERROR("%s: da = NULL\n", __func__);
+ return -EINVAL;
}
- priv->current_channel_width = ht_info->tx_chan_width;
+ if (likely(tid < ARRAY_SIZE(default_tid_to_tx_fifo)))
+ tx_fifo_id = default_tid_to_tx_fifo[tid];
+ else
+ return -EINVAL;
- priv->stations[i].sta.tx_rate.rate_n_flags = sta_rate;
- priv->stations[i].sta.station_flags = sta_flag;
+ sta_id = iwl4965_hw_find_station(priv, da);
- done:
- if (need_to_lock)
- spin_unlock_irqrestore(&priv->sta_lock, flags);
+ if (sta_id == IWL_INVALID_STATION)
+ return -ENXIO;
- return;
+ tid_data = &priv->stations[sta_id].tid[tid];
+ ssn = (tid_data->seq_number & IEEE80211_SCTL_SEQ) >> 4;
+ txq_id = tid_data->agg.txq_id;
+
+ rc = iwl4965_tx_queue_agg_disable(priv, txq_id, ssn, tx_fifo_id);
+ /* FIXME: need more safe way to handle error condition */
+ if (rc)
+ return rc;
+
+ iwl4965_ba_status(priv, tid, BA_STATUS_INITIATOR_DELBA);
+ IWL_DEBUG_INFO("iwl4965_mac_ht_tx_agg_stop on da=%s tid=%d\n",
+ print_mac(mac, da), tid);
+
+ return 0;
}
-#endif /* CONFIG_IWLWIFI_HT */
-#ifdef CONFIG_IWLWIFI_HT_AGG
-static void iwl_sta_modify_enable_tid_tx(struct iwl_priv *priv, int sta_id,
- int tid)
+int iwl4965_mac_ht_rx_agg_start(struct ieee80211_hw *hw, u8 *da,
+ u16 tid, u16 start_seq_num)
{
- unsigned long lock_flags;
- spin_lock_irqsave(&priv->sta_lock, lock_flags);
- priv->stations[sta_id].sta.sta.modify_mask |= STA_MODIFY_TID_DISABLE_TX;
- priv->stations[sta_id].sta.tid_disable_tx &= ~(1 << tid);
- priv->stations[sta_id].sta.mode |= STA_CONTROL_MODIFY_MSK;
- spin_unlock_irqrestore(&priv->sta_lock, lock_flags);
- iwl_send_add_station(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
+ struct iwl4965_priv *priv = hw->priv;
+ int sta_id;
+ DECLARE_MAC_BUF(mac);
+
+ IWL_WARNING("iwl-AGG iwl4965_mac_ht_rx_agg_start on da=%s"
+ " tid=%d\n", print_mac(mac, da), tid);
+ sta_id = iwl4965_hw_find_station(priv, da);
+ iwl4965_sta_modify_add_ba_tid(priv, sta_id, tid, start_seq_num);
+ return 0;
}
-#endif /* CONFIG_IWLWIFI_HT_AGG */
+int iwl4965_mac_ht_rx_agg_stop(struct ieee80211_hw *hw, u8 *da,
+ u16 tid, int generator)
+{
+ struct iwl4965_priv *priv = hw->priv;
+ int sta_id;
+ DECLARE_MAC_BUF(mac);
+
+ IWL_WARNING("iwl-AGG iwl4965_mac_ht_rx_agg_stop on da=%s tid=%d\n",
+ print_mac(mac, da), tid);
+ sta_id = iwl4965_hw_find_station(priv, da);
+ iwl4965_sta_modify_del_ba_tid(priv, sta_id, tid);
+ return 0;
+}
+
+#endif /* CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
/* Set up 4965-specific Rx frame reply handlers */
-void iwl_hw_rx_handler_setup(struct iwl_priv *priv)
+void iwl4965_hw_rx_handler_setup(struct iwl4965_priv *priv)
{
/* Legacy Rx frames */
priv->rx_handlers[REPLY_4965_RX] = iwl4965_rx_reply_rx;
@@ -3898,37 +4865,79 @@ void iwl_hw_rx_handler_setup(struct iwl_priv *priv)
priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] =
iwl4965_rx_missed_beacon_notif;
-#ifdef CONFIG_IWLWIFI_HT_AGG
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl4965_rx_reply_compressed_ba;
-#endif
+#endif /* CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
}
-void iwl_hw_setup_deferred_work(struct iwl_priv *priv)
+void iwl4965_hw_setup_deferred_work(struct iwl4965_priv *priv)
{
INIT_WORK(&priv->txpower_work, iwl4965_bg_txpower_work, priv);
INIT_WORK(&priv->statistics_work, iwl4965_bg_statistics_work, priv);
-#ifdef CONFIG_IWLWIFI_SENSITIVITY
+#ifdef CONFIG_IWL4965_SENSITIVITY
INIT_WORK(&priv->sensitivity_work, iwl4965_bg_sensitivity_work, priv);
#endif
-#ifdef CONFIG_IWLWIFI_HT_AGG
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
INIT_WORK(&priv->agg_work, iwl4965_bg_agg_work, priv);
-#endif
+#endif /* CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
init_timer(&priv->statistics_periodic);
priv->statistics_periodic.data = (unsigned long)priv;
priv->statistics_periodic.function = iwl4965_bg_statistics_periodic;
}
-void iwl_hw_cancel_deferred_work(struct iwl_priv *priv)
+void iwl4965_hw_cancel_deferred_work(struct iwl4965_priv *priv)
{
del_timer_sync(&priv->statistics_periodic);
cancel_delayed_work(&priv->init_alive_start);
}
-struct pci_device_id iwl_hw_card_ids[] = {
- {0x8086, 0x4229, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0x8086, 0x4230, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+struct pci_device_id iwl4965_hw_card_ids[] = {
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4229)},
+ {PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4230)},
{0}
};
-MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids);
+/*
+ * The device's EEPROM semaphore prevents conflicts between driver and uCode
+ * when accessing the EEPROM; each access is a series of pulses to/from the
+ * EEPROM chip, not a single event, so even reads could conflict if they
+ * weren't arbitrated by the semaphore.
+ */
+int iwl4965_eeprom_acquire_semaphore(struct iwl4965_priv *priv)
+{
+ u16 count;
+ int rc;
+
+ for (count = 0; count < EEPROM_SEM_RETRY_LIMIT; count++) {
+ /* Request semaphore */
+ iwl4965_set_bit(priv, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
+
+ /* See if we got it */
+ rc = iwl4965_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
+ CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
+ EEPROM_SEM_TIMEOUT);
+ if (rc >= 0) {
+ IWL_DEBUG_IO("Acquired semaphore after %d tries.\n",
+ count+1);
+ return rc;
+ }
+ }
+
+ return rc;
+}
+
+inline void iwl4965_eeprom_release_semaphore(struct iwl4965_priv *priv)
+{
+ iwl4965_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
+}
+
+
+MODULE_DEVICE_TABLE(pci, iwl4965_hw_card_ids);
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.h b/drivers/net/wireless/iwlwifi/iwl-4965.h
index ec83f08..01fcc23 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.h
@@ -23,85 +23,802 @@
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
*****************************************************************************/
+/*
+ * Please use this file (iwl-4965.h) for driver implementation definitions.
+ * Please use iwl-4965-commands.h for uCode API definitions.
+ * Please use iwl-4965-hw.h for hardware-related definitions.
+ */
+
#ifndef __iwl_4965_h__
#define __iwl_4965_h__
-struct iwl_priv;
-struct sta_ht_info;
+#include <linux/pci.h> /* for struct pci_device_id */
+#include <linux/kernel.h>
+#include <net/ieee80211_radiotap.h>
+
+/* Hardware specific file defines the PCI IDs table for that hardware module */
+extern struct pci_device_id iwl4965_hw_card_ids[];
+
+#define DRV_NAME "iwl4965"
+#include "iwl-4965-hw.h"
+#include "iwl-prph.h"
+#include "iwl-4965-debug.h"
+
+/* Default noise level to report when noise measurement is not available.
+ * This may be because we're:
+ * 1) Not associated (4965, no beacon statistics being sent to driver)
+ * 2) Scanning (noise measurement does not apply to associated channel)
+ * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
+ * Use default noise value of -127 ... this is below the range of measurable
+ * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
+ * Also, -127 works better than 0 when averaging frames with/without
+ * noise info (e.g. averaging might be done in app); measured dBm values are
+ * always negative ... using a negative value as the default keeps all
+ * averages within an s8's (used in some apps) range of negative values. */
+#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
+
+/* Module parameters accessible from iwl-*.c */
+extern int iwl4965_param_hwcrypto;
+extern int iwl4965_param_queues_num;
+extern int iwl4965_param_amsdu_size_8K;
+
+enum iwl4965_antenna {
+ IWL_ANTENNA_DIVERSITY,
+ IWL_ANTENNA_MAIN,
+ IWL_ANTENNA_AUX
+};
+
+/*
+ * RTS threshold here is total size [2347] minus 4 FCS bytes
+ * Per spec:
+ * a value of 0 means RTS on all data/management packets
+ * a value > max MSDU size means no RTS
+ * else RTS for data/management frames where MPDU is larger
+ * than RTS value.
+ */
+#define DEFAULT_RTS_THRESHOLD 2347U
+#define MIN_RTS_THRESHOLD 0U
+#define MAX_RTS_THRESHOLD 2347U
+#define MAX_MSDU_SIZE 2304U
+#define MAX_MPDU_SIZE 2346U
+#define DEFAULT_BEACON_INTERVAL 100U
+#define DEFAULT_SHORT_RETRY_LIMIT 7U
+#define DEFAULT_LONG_RETRY_LIMIT 4U
+
+struct iwl4965_rx_mem_buffer {
+ dma_addr_t dma_addr;
+ struct sk_buff *skb;
+ struct list_head list;
+};
+
+struct iwl4965_rt_rx_hdr {
+ struct ieee80211_radiotap_header rt_hdr;
+ __le64 rt_tsf; /* TSF */
+ u8 rt_flags; /* radiotap packet flags */
+ u8 rt_rate; /* rate in 500kb/s */
+ __le16 rt_channelMHz; /* channel in MHz */
+ __le16 rt_chbitmask; /* channel bitfield */
+ s8 rt_dbmsignal; /* signal in dBm, kluged to signed */
+ s8 rt_dbmnoise;
+ u8 rt_antenna; /* antenna number */
+ u8 payload[0]; /* payload... */
+} __attribute__ ((packed));
+
+struct iwl4965_rt_tx_hdr {
+ struct ieee80211_radiotap_header rt_hdr;
+ u8 rt_rate; /* rate in 500kb/s */
+ __le16 rt_channel; /* channel in mHz */
+ __le16 rt_chbitmask; /* channel bitfield */
+ s8 rt_dbmsignal; /* signal in dBm, kluged to signed */
+ u8 rt_antenna; /* antenna number */
+ u8 payload[0]; /* payload... */
+} __attribute__ ((packed));
+
+/*
+ * Generic queue structure
+ *
+ * Contains common data for Rx and Tx queues
+ */
+struct iwl4965_queue {
+ int n_bd; /* number of BDs in this queue */
+ int write_ptr; /* 1-st empty entry (index) host_w*/
+ int read_ptr; /* last used entry (index) host_r*/
+ dma_addr_t dma_addr; /* physical addr for BD's */
+ int n_window; /* safe queue window */
+ u32 id;
+ int low_mark; /* low watermark, resume queue if free
+ * space more than this */
+ int high_mark; /* high watermark, stop queue if free
+ * space less than this */
+} __attribute__ ((packed));
+
+#define MAX_NUM_OF_TBS (20)
+
+/* One for each TFD */
+struct iwl4965_tx_info {
+ struct ieee80211_tx_status status;
+ struct sk_buff *skb[MAX_NUM_OF_TBS];
+};
+
+/**
+ * struct iwl4965_tx_queue - Tx Queue for DMA
+ * @q: generic Rx/Tx queue descriptor
+ * @bd: base of circular buffer of TFDs
+ * @cmd: array of command/Tx buffers
+ * @dma_addr_cmd: physical address of cmd/tx buffer array
+ * @txb: array of per-TFD driver data
+ * @need_update: indicates need to update read/write index
+ * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
+ *
+ * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
+ * descriptors) and required locking structures.
+ */
+struct iwl4965_tx_queue {
+ struct iwl4965_queue q;
+ struct iwl4965_tfd_frame *bd;
+ struct iwl4965_cmd *cmd;
+ dma_addr_t dma_addr_cmd;
+ struct iwl4965_tx_info *txb;
+ int need_update;
+ int sched_retry;
+ int active;
+};
+
+#define IWL_NUM_SCAN_RATES (2)
+
+struct iwl4965_channel_tgd_info {
+ u8 type;
+ s8 max_power;
+};
+
+struct iwl4965_channel_tgh_info {
+ s64 last_radar_time;
+};
+
+/* current Tx power values to use, one for each rate for each channel.
+ * requested power is limited by:
+ * -- regulatory EEPROM limits for this channel
+ * -- hardware capabilities (clip-powers)
+ * -- spectrum management
+ * -- user preference (e.g. iwconfig)
+ * when requested power is set, base power index must also be set. */
+struct iwl4965_channel_power_info {
+ struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */
+ s8 power_table_index; /* actual (compenst'd) index into gain table */
+ s8 base_power_index; /* gain index for power at factory temp. */
+ s8 requested_power; /* power (dBm) requested for this chnl/rate */
+};
+
+/* current scan Tx power values to use, one for each scan rate for each
+ * channel. */
+struct iwl4965_scan_power_info {
+ struct iwl4965_tx_power tpc; /* actual radio and DSP gain settings */
+ s8 power_table_index; /* actual (compenst'd) index into gain table */
+ s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
+};
+
+/* For fat_extension_channel */
+enum {
+ HT_IE_EXT_CHANNEL_NONE = 0,
+ HT_IE_EXT_CHANNEL_ABOVE,
+ HT_IE_EXT_CHANNEL_INVALID,
+ HT_IE_EXT_CHANNEL_BELOW,
+ HT_IE_EXT_CHANNEL_MAX
+};
+
+/*
+ * One for each channel, holds all channel setup data
+ * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
+ * with one another!
+ */
+#define IWL4965_MAX_RATE (33)
+
+struct iwl4965_channel_info {
+ struct iwl4965_channel_tgd_info tgd;
+ struct iwl4965_channel_tgh_info tgh;
+ struct iwl4965_eeprom_channel eeprom; /* EEPROM regulatory limit */
+ struct iwl4965_eeprom_channel fat_eeprom; /* EEPROM regulatory limit for
+ * FAT channel */
+
+ u8 channel; /* channel number */
+ u8 flags; /* flags copied from EEPROM */
+ s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
+ s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
+ s8 min_power; /* always 0 */
+ s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
+
+ u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
+ u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
+ u8 phymode; /* MODE_IEEE80211{A,B,G} */
+
+ /* Radio/DSP gain settings for each "normal" data Tx rate.
+ * These include, in addition to RF and DSP gain, a few fields for
+ * remembering/modifying gain settings (indexes). */
+ struct iwl4965_channel_power_info power_info[IWL4965_MAX_RATE];
+
+ /* FAT channel info */
+ s8 fat_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
+ s8 fat_curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) */
+ s8 fat_min_power; /* always 0 */
+ s8 fat_scan_power; /* (dBm) eeprom, direct scans, any rate */
+ u8 fat_flags; /* flags copied from EEPROM */
+ u8 fat_extension_channel; /* HT_IE_EXT_CHANNEL_* */
+
+ /* Radio/DSP gain settings for each scan rate, for directed scans. */
+ struct iwl4965_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
+};
+
+struct iwl4965_clip_group {
+ /* maximum power level to prevent clipping for each rate, derived by
+ * us from this band's saturation power in EEPROM */
+ const s8 clip_powers[IWL_MAX_RATES];
+};
+
+#include "iwl-4965-rs.h"
+
+#define IWL_TX_FIFO_AC0 0
+#define IWL_TX_FIFO_AC1 1
+#define IWL_TX_FIFO_AC2 2
+#define IWL_TX_FIFO_AC3 3
+#define IWL_TX_FIFO_HCCA_1 5
+#define IWL_TX_FIFO_HCCA_2 6
+#define IWL_TX_FIFO_NONE 7
+
+/* Minimum number of queues. MAX_NUM is defined in hw specific files */
+#define IWL_MIN_NUM_QUEUES 4
+
+/* Power management (not Tx power) structures */
+
+struct iwl4965_power_vec_entry {
+ struct iwl4965_powertable_cmd cmd;
+ u8 no_dtim;
+};
+#define IWL_POWER_RANGE_0 (0)
+#define IWL_POWER_RANGE_1 (1)
+
+#define IWL_POWER_MODE_CAM 0x00 /* Continuously Aware Mode, always on */
+#define IWL_POWER_INDEX_3 0x03
+#define IWL_POWER_INDEX_5 0x05
+#define IWL_POWER_AC 0x06
+#define IWL_POWER_BATTERY 0x07
+#define IWL_POWER_LIMIT 0x07
+#define IWL_POWER_MASK 0x0F
+#define IWL_POWER_ENABLED 0x10
+#define IWL_POWER_LEVEL(x) ((x) & IWL_POWER_MASK)
+
+struct iwl4965_power_mgr {
+ spinlock_t lock;
+ struct iwl4965_power_vec_entry pwr_range_0[IWL_POWER_AC];
+ struct iwl4965_power_vec_entry pwr_range_1[IWL_POWER_AC];
+ u8 active_index;
+ u32 dtim_val;
+};
+
+#define IEEE80211_DATA_LEN 2304
+#define IEEE80211_4ADDR_LEN 30
+#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
+#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
+
+struct iwl4965_frame {
+ union {
+ struct ieee80211_hdr frame;
+ struct iwl4965_tx_beacon_cmd beacon;
+ u8 raw[IEEE80211_FRAME_LEN];
+ u8 cmd[360];
+ } u;
+ struct list_head list;
+};
+
+#define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf)
+#define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8)
+#define SEQ_TO_INDEX(x) (x & 0xff)
+#define INDEX_TO_SEQ(x) (x & 0xff)
+#define SEQ_HUGE_FRAME (0x4000)
+#define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
+#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
+#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
+#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
+
+enum {
+ /* CMD_SIZE_NORMAL = 0, */
+ CMD_SIZE_HUGE = (1 << 0),
+ /* CMD_SYNC = 0, */
+ CMD_ASYNC = (1 << 1),
+ /* CMD_NO_SKB = 0, */
+ CMD_WANT_SKB = (1 << 2),
+};
+
+struct iwl4965_cmd;
+struct iwl4965_priv;
+
+struct iwl4965_cmd_meta {
+ struct iwl4965_cmd_meta *source;
+ union {
+ struct sk_buff *skb;
+ int (*callback)(struct iwl4965_priv *priv,
+ struct iwl4965_cmd *cmd, struct sk_buff *skb);
+ } __attribute__ ((packed)) u;
+
+ /* The CMD_SIZE_HUGE flag bit indicates that the command
+ * structure is stored at the end of the shared queue memory. */
+ u32 flags;
+
+} __attribute__ ((packed));
+
+/**
+ * struct iwl4965_cmd
+ *
+ * For allocation of the command and tx queues, this establishes the overall
+ * size of the largest command we send to uCode, except for a scan command
+ * (which is relatively huge; space is allocated separately).
+ */
+struct iwl4965_cmd {
+ struct iwl4965_cmd_meta meta; /* driver data */
+ struct iwl4965_cmd_header hdr; /* uCode API */
+ union {
+ struct iwl4965_addsta_cmd addsta;
+ struct iwl4965_led_cmd led;
+ u32 flags;
+ u8 val8;
+ u16 val16;
+ u32 val32;
+ struct iwl4965_bt_cmd bt;
+ struct iwl4965_rxon_time_cmd rxon_time;
+ struct iwl4965_powertable_cmd powertable;
+ struct iwl4965_qosparam_cmd qosparam;
+ struct iwl4965_tx_cmd tx;
+ struct iwl4965_tx_beacon_cmd tx_beacon;
+ struct iwl4965_rxon_assoc_cmd rxon_assoc;
+ u8 *indirect;
+ u8 payload[360];
+ } __attribute__ ((packed)) cmd;
+} __attribute__ ((packed));
+
+struct iwl4965_host_cmd {
+ u8 id;
+ u16 len;
+ struct iwl4965_cmd_meta meta;
+ const void *data;
+};
+
+#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl4965_cmd) - \
+ sizeof(struct iwl4965_cmd_meta))
+
+/*
+ * RX related structures and functions
+ */
+#define RX_FREE_BUFFERS 64
+#define RX_LOW_WATERMARK 8
+
+#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
+#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
+#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
+
+/**
+ * struct iwl4965_rx_queue - Rx queue
+ * @processed: Internal index to last handled Rx packet
+ * @read: Shared index to newest available Rx buffer
+ * @write: Shared index to oldest written Rx packet
+ * @free_count: Number of pre-allocated buffers in rx_free
+ * @rx_free: list of free SKBs for use
+ * @rx_used: List of Rx buffers with no SKB
+ * @need_update: flag to indicate we need to update read/write index
+ *
+ * NOTE: rx_free and rx_used are used as a FIFO for iwl4965_rx_mem_buffers
+ */
+struct iwl4965_rx_queue {
+ __le32 *bd;
+ dma_addr_t dma_addr;
+ struct iwl4965_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
+ struct iwl4965_rx_mem_buffer *queue[RX_QUEUE_SIZE];
+ u32 processed;
+ u32 read;
+ u32 write;
+ u32 free_count;
+ struct list_head rx_free;
+ struct list_head rx_used;
+ int need_update;
+ spinlock_t lock;
+};
+
+#define IWL_SUPPORTED_RATES_IE_LEN 8
+
+#define SCAN_INTERVAL 100
+
+#define MAX_A_CHANNELS 252
+#define MIN_A_CHANNELS 7
+
+#define MAX_B_CHANNELS 14
+#define MIN_B_CHANNELS 1
+
+#define STATUS_HCMD_ACTIVE 0 /* host command in progress */
+#define STATUS_INT_ENABLED 1
+#define STATUS_RF_KILL_HW 2
+#define STATUS_RF_KILL_SW 3
+#define STATUS_INIT 4
+#define STATUS_ALIVE 5
+#define STATUS_READY 6
+#define STATUS_TEMPERATURE 7
+#define STATUS_GEO_CONFIGURED 8
+#define STATUS_EXIT_PENDING 9
+#define STATUS_IN_SUSPEND 10
+#define STATUS_STATISTICS 11
+#define STATUS_SCANNING 12
+#define STATUS_SCAN_ABORTING 13
+#define STATUS_SCAN_HW 14
+#define STATUS_POWER_PMI 15
+#define STATUS_FW_ERROR 16
+
+#define MAX_TID_COUNT 9
+
+#define IWL_INVALID_RATE 0xFF
+#define IWL_INVALID_VALUE -1
+
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+/**
+ * struct iwl4965_ht_agg -- aggregation status while waiting for block-ack
+ * @txq_id: Tx queue used for Tx attempt
+ * @frame_count: # frames attempted by Tx command
+ * @wait_for_ba: Expect block-ack before next Tx reply
+ * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
+ * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
+ * @bitmap1: High order, one bit for each frame pending ACK in Tx window
+ * @rate_n_flags: Rate at which Tx was attempted
+ *
+ * If REPLY_TX indicates that aggregation was attempted, driver must wait
+ * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
+ * until block ack arrives.
+ */
+struct iwl4965_ht_agg {
+ u16 txq_id;
+ u16 frame_count;
+ u16 wait_for_ba;
+ u16 start_idx;
+ u32 bitmap0;
+ u32 bitmap1;
+ u32 rate_n_flags;
+};
+#endif /* CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
+
+struct iwl4965_tid_data {
+ u16 seq_number;
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+ struct iwl4965_ht_agg agg;
+#endif /* CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
+};
+
+struct iwl4965_hw_key {
+ enum ieee80211_key_alg alg;
+ int keylen;
+ u8 key[32];
+};
+
+union iwl4965_ht_rate_supp {
+ u16 rates;
+ struct {
+ u8 siso_rate;
+ u8 mimo_rate;
+ };
+};
+
+#ifdef CONFIG_IWL4965_HT
+#define CFG_HT_RX_AMPDU_FACTOR_DEF (0x3)
+#define CFG_HT_MPDU_DENSITY_2USEC (0x5)
+#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_2USEC
+
+struct iwl_ht_info {
+ /* self configuration data */
+ u8 is_ht;
+ u8 supported_chan_width;
+ u16 tx_mimo_ps_mode;
+ u8 is_green_field;
+ u8 sgf; /* HT_SHORT_GI_* short guard interval */
+ u8 max_amsdu_size;
+ u8 ampdu_factor;
+ u8 mpdu_density;
+ u8 supp_mcs_set[16];
+ /* BSS related data */
+ u8 control_channel;
+ u8 extension_chan_offset;
+ u8 tx_chan_width;
+ u8 ht_protection;
+ u8 non_GF_STA_present;
+};
+#endif /*CONFIG_IWL4965_HT */
+
+#ifdef CONFIG_IWL4965_QOS
+
+union iwl4965_qos_capabity {
+ struct {
+ u8 edca_count:4; /* bit 0-3 */
+ u8 q_ack:1; /* bit 4 */
+ u8 queue_request:1; /* bit 5 */
+ u8 txop_request:1; /* bit 6 */
+ u8 reserved:1; /* bit 7 */
+ } q_AP;
+ struct {
+ u8 acvo_APSD:1; /* bit 0 */
+ u8 acvi_APSD:1; /* bit 1 */
+ u8 ac_bk_APSD:1; /* bit 2 */
+ u8 ac_be_APSD:1; /* bit 3 */
+ u8 q_ack:1; /* bit 4 */
+ u8 max_len:2; /* bit 5-6 */
+ u8 more_data_ack:1; /* bit 7 */
+ } q_STA;
+ u8 val;
+};
+
+/* QoS structures */
+struct iwl4965_qos_info {
+ int qos_enable;
+ int qos_active;
+ union iwl4965_qos_capabity qos_cap;
+ struct iwl4965_qosparam_cmd def_qos_parm;
+};
+#endif /*CONFIG_IWL4965_QOS */
+
+#define STA_PS_STATUS_WAKE 0
+#define STA_PS_STATUS_SLEEP 1
+
+struct iwl4965_station_entry {
+ struct iwl4965_addsta_cmd sta;
+ struct iwl4965_tid_data tid[MAX_TID_COUNT];
+ u8 used;
+ u8 ps_status;
+ struct iwl4965_hw_key keyinfo;
+};
+
+/* one for each uCode image (inst/data, boot/init/runtime) */
+struct fw_desc {
+ void *v_addr; /* access by driver */
+ dma_addr_t p_addr; /* access by card's busmaster DMA */
+ u32 len; /* bytes */
+};
+
+/* uCode file layout */
+struct iwl4965_ucode {
+ __le32 ver; /* major/minor/subminor */
+ __le32 inst_size; /* bytes of runtime instructions */
+ __le32 data_size; /* bytes of runtime data */
+ __le32 init_size; /* bytes of initialization instructions */
+ __le32 init_data_size; /* bytes of initialization data */
+ __le32 boot_size; /* bytes of bootstrap instructions */
+ u8 data[0]; /* data in same order as "size" elements */
+};
+
+#define IWL_IBSS_MAC_HASH_SIZE 32
+
+struct iwl4965_ibss_seq {
+ u8 mac[ETH_ALEN];
+ u16 seq_num;
+ u16 frag_num;
+ unsigned long packet_time;
+ struct list_head list;
+};
+
+/**
+ * struct iwl4965_driver_hw_info
+ * @max_txq_num: Max # Tx queues supported
+ * @ac_queue_count: # Tx queues for EDCA Access Categories (AC)
+ * @tx_cmd_len: Size of Tx command (but not including frame itself)
+ * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
+ * @rx_buffer_size:
+ * @max_rxq_log: Log-base-2 of max_rxq_size
+ * @max_stations:
+ * @bcast_sta_id:
+ * @shared_virt: Pointer to driver/uCode shared Tx Byte Counts and Rx status
+ * @shared_phys: Physical Pointer to Tx Byte Counts and Rx status
+ */
+struct iwl4965_driver_hw_info {
+ u16 max_txq_num;
+ u16 ac_queue_count;
+ u16 tx_cmd_len;
+ u16 max_rxq_size;
+ u32 rx_buf_size;
+ u32 max_pkt_size;
+ u16 max_rxq_log;
+ u8 max_stations;
+ u8 bcast_sta_id;
+ void *shared_virt;
+ dma_addr_t shared_phys;
+};
+
+#define HT_SHORT_GI_20MHZ_ONLY (1 << 0)
+#define HT_SHORT_GI_40MHZ_ONLY (1 << 1)
+
+
+#define IWL_RX_HDR(x) ((struct iwl4965_rx_frame_hdr *)(\
+ x->u.rx_frame.stats.payload + \
+ x->u.rx_frame.stats.phy_count))
+#define IWL_RX_END(x) ((struct iwl4965_rx_frame_end *)(\
+ IWL_RX_HDR(x)->payload + \
+ le16_to_cpu(IWL_RX_HDR(x)->len)))
+#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
+#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
+
+
+/******************************************************************************
+ *
+ * Functions implemented in iwl-base.c which are forward declared here
+ * for use by iwl-*.c
+ *
+ *****************************************************************************/
+struct iwl4965_addsta_cmd;
+extern int iwl4965_send_add_station(struct iwl4965_priv *priv,
+ struct iwl4965_addsta_cmd *sta, u8 flags);
+extern u8 iwl4965_add_station_flags(struct iwl4965_priv *priv, const u8 *addr,
+ int is_ap, u8 flags, void *ht_data);
+extern int iwl4965_is_network_packet(struct iwl4965_priv *priv,
+ struct ieee80211_hdr *header);
+extern int iwl4965_power_init_handle(struct iwl4965_priv *priv);
+extern int iwl4965_eeprom_init(struct iwl4965_priv *priv);
+#ifdef CONFIG_IWL4965_DEBUG
+extern void iwl4965_report_frame(struct iwl4965_priv *priv,
+ struct iwl4965_rx_packet *pkt,
+ struct ieee80211_hdr *header, int group100);
+#else
+static inline void iwl4965_report_frame(struct iwl4965_priv *priv,
+ struct iwl4965_rx_packet *pkt,
+ struct ieee80211_hdr *header,
+ int group100) {}
+#endif
+extern void iwl4965_handle_data_packet_monitor(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb,
+ void *data, short len,
+ struct ieee80211_rx_status *stats,
+ u16 phy_flags);
+extern int iwl4965_is_duplicate_packet(struct iwl4965_priv *priv,
+ struct ieee80211_hdr *header);
+extern int iwl4965_rx_queue_alloc(struct iwl4965_priv *priv);
+extern void iwl4965_rx_queue_reset(struct iwl4965_priv *priv,
+ struct iwl4965_rx_queue *rxq);
+extern int iwl4965_calc_db_from_ratio(int sig_ratio);
+extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
+extern int iwl4965_tx_queue_init(struct iwl4965_priv *priv,
+ struct iwl4965_tx_queue *txq, int count, u32 id);
+extern void iwl4965_rx_replenish(void *data);
+extern void iwl4965_tx_queue_free(struct iwl4965_priv *priv, struct iwl4965_tx_queue *txq);
+extern int iwl4965_send_cmd_pdu(struct iwl4965_priv *priv, u8 id, u16 len,
+ const void *data);
+extern int __must_check iwl4965_send_cmd(struct iwl4965_priv *priv,
+ struct iwl4965_host_cmd *cmd);
+extern unsigned int iwl4965_fill_beacon_frame(struct iwl4965_priv *priv,
+ struct ieee80211_hdr *hdr,
+ const u8 *dest, int left);
+extern int iwl4965_rx_queue_update_write_ptr(struct iwl4965_priv *priv,
+ struct iwl4965_rx_queue *q);
+extern int iwl4965_send_statistics_request(struct iwl4965_priv *priv);
+extern void iwl4965_set_decrypted_flag(struct iwl4965_priv *priv, struct sk_buff *skb,
+ u32 decrypt_res,
+ struct ieee80211_rx_status *stats);
+extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
+
+extern const u8 iwl4965_broadcast_addr[ETH_ALEN];
-#if IWL != 4965
/*
- * In non IWL == 4965 builds, these must build to nothing in order to allow
- * the common code to not have several #if IWL == XXXX / #endif blocks
+ * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
+ * call this... todo... fix that.
+*/
+extern u8 iwl4965_sync_station(struct iwl4965_priv *priv, int sta_id,
+ u16 tx_rate, u8 flags);
+
+/******************************************************************************
+ *
+ * Functions implemented in iwl-[34]*.c which are forward declared here
+ * for use by iwl-base.c
+ *
+ * NOTE: The implementation of these functions are hardware specific
+ * which is why they are in the hardware specific files (vs. iwl-base.c)
+ *
+ * Naming convention --
+ * iwl4965_ <-- Its part of iwlwifi (should be changed to iwl4965_)
+ * iwl4965_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
+ * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
+ * iwl4965_bg_ <-- Called from work queue context
+ * iwl4965_mac_ <-- mac80211 callback
+ *
+ ****************************************************************************/
+extern void iwl4965_hw_rx_handler_setup(struct iwl4965_priv *priv);
+extern void iwl4965_hw_setup_deferred_work(struct iwl4965_priv *priv);
+extern void iwl4965_hw_cancel_deferred_work(struct iwl4965_priv *priv);
+extern int iwl4965_hw_rxq_stop(struct iwl4965_priv *priv);
+extern int iwl4965_hw_set_hw_setting(struct iwl4965_priv *priv);
+extern int iwl4965_hw_nic_init(struct iwl4965_priv *priv);
+extern int iwl4965_hw_nic_stop_master(struct iwl4965_priv *priv);
+extern void iwl4965_hw_txq_ctx_free(struct iwl4965_priv *priv);
+extern void iwl4965_hw_txq_ctx_stop(struct iwl4965_priv *priv);
+extern int iwl4965_hw_nic_reset(struct iwl4965_priv *priv);
+extern int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl4965_priv *priv, void *tfd,
+ dma_addr_t addr, u16 len);
+extern int iwl4965_hw_txq_free_tfd(struct iwl4965_priv *priv, struct iwl4965_tx_queue *txq);
+extern int iwl4965_hw_get_temperature(struct iwl4965_priv *priv);
+extern int iwl4965_hw_tx_queue_init(struct iwl4965_priv *priv,
+ struct iwl4965_tx_queue *txq);
+extern unsigned int iwl4965_hw_get_beacon_cmd(struct iwl4965_priv *priv,
+ struct iwl4965_frame *frame, u8 rate);
+extern int iwl4965_hw_get_rx_read(struct iwl4965_priv *priv);
+extern void iwl4965_hw_build_tx_cmd_rate(struct iwl4965_priv *priv,
+ struct iwl4965_cmd *cmd,
+ struct ieee80211_tx_control *ctrl,
+ struct ieee80211_hdr *hdr,
+ int sta_id, int tx_id);
+extern int iwl4965_hw_reg_send_txpower(struct iwl4965_priv *priv);
+extern int iwl4965_hw_reg_set_txpower(struct iwl4965_priv *priv, s8 power);
+extern void iwl4965_hw_rx_statistics(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb);
+extern void iwl4965_disable_events(struct iwl4965_priv *priv);
+extern int iwl4965_get_temperature(const struct iwl4965_priv *priv);
+
+/**
+ * iwl4965_hw_find_station - Find station id for a given BSSID
+ * @bssid: MAC address of station ID to find
+ *
+ * NOTE: This should not be hardware specific but the code has
+ * not yet been merged into a single common layer for managing the
+ * station tables.
*/
-static inline void iwl4965_add_station(struct iwl_priv *priv, const u8 * addr,
- int is_ap) {}
-static inline void iwl4965_set_rxon_ht(struct iwl_priv *priv,
- struct sta_ht_info *ht_info) {}
-
-static inline void iwl4965_set_rxon_chain(struct iwl_priv *priv) {}
-static inline int iwl4965_tx_cmd(struct iwl_priv *priv,
- struct iwl_cmd *out_cmd,
- u8 sta_id, dma_addr_t txcmd_phys,
- struct ieee80211_hdr *hdr, u8 hdr_len,
- struct ieee80211_tx_control *ctrl,
- void *sta_in) { return 0; }
-static inline int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
- u16 len) { return 0; }
-static inline int iwl4965_init_hw_rates(struct iwl_priv *priv,
- struct ieee80211_rate *rates)
-{ return 0; }
-static inline int iwl4965_alive_notify(struct iwl_priv *priv) { return 0; }
-static inline void iwl4965_update_rate_scaling(struct iwl_priv *priv,
- u8 mode) {}
-static inline void iwl4965_set_ht_add_station(struct iwl_priv *priv, u8 index,
- u8 need_to_lock) {}
-static inline void iwl4965_chain_noise_reset(struct iwl_priv *priv) {}
-static inline void iwl4965_init_sensitivity(struct iwl_priv *priv, u8 flags,
- u8 force) {}
-static inline int iwl4965_set_fat_chan_info(struct iwl_priv *priv, int phymode,
- int channel,
- const struct iwl_eeprom_channel *eeprom_ch,
- u8 fat_extension_channel) { return 0; }
-static inline void iwl4965_rf_kill_ct_config(struct iwl_priv *priv) {}
-#else /* IWL == 4965 */
+extern u8 iwl4965_hw_find_station(struct iwl4965_priv *priv, const u8 *bssid);
+
+extern int iwl4965_hw_channel_switch(struct iwl4965_priv *priv, u16 channel);
+extern int iwl4965_tx_queue_reclaim(struct iwl4965_priv *priv, int txq_id, int index);
+
+struct iwl4965_priv;
+
/*
- * Forward declare iwl-4965.c functions for base.c
+ * Forward declare iwl-4965.c functions for iwl-base.c
*/
-extern int iwl4965_tx_queue_update_wr_ptr(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
+extern int iwl4965_eeprom_acquire_semaphore(struct iwl4965_priv *priv);
+extern void iwl4965_eeprom_release_semaphore(struct iwl4965_priv *priv);
+
+extern int iwl4965_tx_queue_update_wr_ptr(struct iwl4965_priv *priv,
+ struct iwl4965_tx_queue *txq,
u16 byte_cnt);
-extern void iwl4965_add_station(struct iwl_priv *priv, const u8 * addr,
+extern void iwl4965_add_station(struct iwl4965_priv *priv, const u8 *addr,
int is_ap);
-extern void iwl4965_set_rxon_ht(struct iwl_priv *priv,
- struct sta_ht_info *ht_info);
-
-extern void iwl4965_set_rxon_chain(struct iwl_priv *priv);
-extern int iwl4965_tx_cmd(struct iwl_priv *priv, struct iwl_cmd *out_cmd,
+extern void iwl4965_set_rxon_chain(struct iwl4965_priv *priv);
+extern int iwl4965_tx_cmd(struct iwl4965_priv *priv, struct iwl4965_cmd *out_cmd,
u8 sta_id, dma_addr_t txcmd_phys,
struct ieee80211_hdr *hdr, u8 hdr_len,
struct ieee80211_tx_control *ctrl, void *sta_in);
-extern int iwl4965_init_hw_rates(struct iwl_priv *priv,
- struct ieee80211_rate *rates);
-extern int iwl4965_alive_notify(struct iwl_priv *priv);
-extern void iwl4965_update_rate_scaling(struct iwl_priv *priv, u8 mode);
-extern void iwl4965_set_ht_add_station(struct iwl_priv *priv,
- u8 index, u8 need_to_lock);
-
-extern void iwl4965_chain_noise_reset(struct iwl_priv *priv);
-extern void iwl4965_init_sensitivity(struct iwl_priv *priv, u8 flags,
+extern int iwl4965_alive_notify(struct iwl4965_priv *priv);
+extern void iwl4965_update_rate_scaling(struct iwl4965_priv *priv, u8 mode);
+extern void iwl4965_chain_noise_reset(struct iwl4965_priv *priv);
+extern void iwl4965_init_sensitivity(struct iwl4965_priv *priv, u8 flags,
u8 force);
-extern int iwl4965_set_fat_chan_info(struct iwl_priv *priv, int phymode,
- int channel,
- const struct iwl_eeprom_channel *eeprom_ch,
+extern int iwl4965_set_fat_chan_info(struct iwl4965_priv *priv, int phymode,
+ u16 channel,
+ const struct iwl4965_eeprom_channel *eeprom_ch,
u8 fat_extension_channel);
-extern void iwl4965_rf_kill_ct_config(struct iwl_priv *priv);
+extern void iwl4965_rf_kill_ct_config(struct iwl4965_priv *priv);
+
+#ifdef CONFIG_IWL4965_HT
+extern void iwl4965_init_ht_hw_capab(struct ieee80211_ht_info *ht_info,
+ int mode);
+extern void iwl4965_set_rxon_ht(struct iwl4965_priv *priv,
+ struct iwl_ht_info *ht_info);
+extern void iwl4965_set_ht_add_station(struct iwl4965_priv *priv, u8 index,
+ struct ieee80211_ht_info *sta_ht_inf);
+#ifdef CONFIG_IWL4965_HT_AGG
+extern int iwl4965_mac_ht_tx_agg_start(struct ieee80211_hw *hw, u8 *da,
+ u16 tid, u16 *start_seq_num);
+extern int iwl4965_mac_ht_rx_agg_start(struct ieee80211_hw *hw, u8 *da,
+ u16 tid, u16 start_seq_num);
+extern int iwl4965_mac_ht_rx_agg_stop(struct ieee80211_hw *hw, u8 *da,
+ u16 tid, int generator);
+extern int iwl4965_mac_ht_tx_agg_stop(struct ieee80211_hw *hw, u8 *da,
+ u16 tid, int generator);
+extern void iwl4965_turn_off_agg(struct iwl4965_priv *priv, u8 tid);
+#endif /* CONFIG_IWL4965_HT_AGG */
+#endif /*CONFIG_IWL4965_HT */
/* Structures, enum, and defines specific to the 4965 */
#define IWL4965_KW_SIZE 0x1000 /*4k */
-struct iwl_kw {
+struct iwl4965_kw {
dma_addr_t dma_addr;
void *v_addr;
size_t size;
@@ -141,7 +858,9 @@ struct iwl_kw {
#define NRG_NUM_PREV_STAT_L 20
#define NUM_RX_CHAINS (3)
-struct iwl_traffic_load {
+#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
+
+struct iwl4965_traffic_load {
unsigned long time_stamp;
u32 packet_count[TID_QUEUE_MAX_SIZE];
u8 queue_count;
@@ -149,8 +868,13 @@ struct iwl_traffic_load {
u32 total;
};
-#ifdef CONFIG_IWLWIFI_HT_AGG
-struct iwl_agg_control {
+#ifdef CONFIG_IWL4965_HT_AGG
+/**
+ * struct iwl4965_agg_control
+ * @requested_ba: bit map of tids requesting aggregation/block-ack
+ * @granted_ba: bit map of tids granted aggregation/block-ack
+ */
+struct iwl4965_agg_control {
unsigned long next_retry;
u32 wait_for_agg_status;
u32 tid_retry;
@@ -159,17 +883,16 @@ struct iwl_agg_control {
u8 auto_agg;
u32 tid_traffic_load_threshold;
u32 ba_timeout;
- struct iwl_traffic_load traffic_load[TID_MAX_LOAD_COUNT];
+ struct iwl4965_traffic_load traffic_load[TID_MAX_LOAD_COUNT];
};
-#endif /*CONFIG_IWLWIFI_HT_AGG */
+#endif /*CONFIG_IWL4965_HT_AGG */
-struct iwl_lq_mngr {
-#ifdef CONFIG_IWLWIFI_HT_AGG
- struct iwl_agg_control agg_ctrl;
+struct iwl4965_lq_mngr {
+#ifdef CONFIG_IWL4965_HT_AGG
+ struct iwl4965_agg_control agg_ctrl;
#endif
spinlock_t lock;
s32 max_window_size;
- struct iwl_rate_scaling_cmd scale_rate_cmd;
s32 *expected_tpt;
u8 *next_higher_rate;
u8 *next_lower_rate;
@@ -177,31 +900,16 @@ struct iwl_lq_mngr {
unsigned long stamp_last;
u32 flush_time;
u32 tx_packets;
+ u8 lq_ready;
};
/* Sensitivity and chain noise calibration */
+#define INTERFERENCE_DATA_AVAILABLE __constant_cpu_to_le32(1)
#define INITIALIZATION_VALUE 0xFFFF
#define CAL_NUM_OF_BEACONS 20
-#define IN_BAND_FILTER 0xFF
#define MAXIMUM_ALLOWED_PATHLOSS 15
-/* Param table within SENSITIVITY_CMD */
-#define HD_MIN_ENERGY_CCK_DET_INDEX (0)
-#define HD_MIN_ENERGY_OFDM_DET_INDEX (1)
-#define HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX (2)
-#define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX (3)
-#define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX (4)
-#define HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX (5)
-#define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX (6)
-#define HD_BARKER_CORR_TH_ADD_MIN_INDEX (7)
-#define HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX (8)
-#define HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX (9)
-#define HD_OFDM_ENERGY_TH_IN_INDEX (10)
-
-#define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE (0)
-#define SENSITIVITY_CMD_CONTROL_WORK_TABLE (1)
-
#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
#define MAX_FA_OFDM 50
@@ -229,8 +937,6 @@ struct iwl_lq_mngr {
#define AUTO_CORR_STEP_CCK 3
#define AUTO_CORR_MAX_TH_CCK 160
-#define NRG_ALG 0
-#define AUTO_CORR_ALG 1
#define NRG_DIFF 2
#define NRG_STEP_CCK 2
#define NRG_MARGIN 8
@@ -243,26 +949,27 @@ struct iwl_lq_mngr {
#define CHAIN_C 2
#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
#define ALL_BAND_FILTER 0xFF00
+#define IN_BAND_FILTER 0xFF
#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
-enum iwl_false_alarm_state {
+enum iwl4965_false_alarm_state {
IWL_FA_TOO_MANY = 0,
IWL_FA_TOO_FEW = 1,
IWL_FA_GOOD_RANGE = 2,
};
-enum iwl_chain_noise_state {
+enum iwl4965_chain_noise_state {
IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
IWL_CHAIN_NOISE_ACCUMULATE = 1,
IWL_CHAIN_NOISE_CALIBRATED = 2,
};
-enum iwl_sensitivity_state {
+enum iwl4965_sensitivity_state {
IWL_SENS_CALIB_ALLOWED = 0,
IWL_SENS_CALIB_NEED_REINIT = 1,
};
-enum iwl_calib_enabled_state {
+enum iwl4965_calib_enabled_state {
IWL_CALIB_DISABLED = 0, /* must be 0 */
IWL_CALIB_ENABLED = 1,
};
@@ -277,7 +984,7 @@ struct statistics_general_data {
};
/* Sensitivity calib data */
-struct iwl_sensitivity_data {
+struct iwl4965_sensitivity_data {
u32 auto_corr_ofdm;
u32 auto_corr_ofdm_mrc;
u32 auto_corr_ofdm_x1;
@@ -306,7 +1013,7 @@ struct iwl_sensitivity_data {
};
/* Chain noise (differential Rx gain) calib data */
-struct iwl_chain_noise_data {
+struct iwl4965_chain_noise_data {
u8 state;
u16 beacon_count;
u32 chain_noise_a;
@@ -320,26 +1027,323 @@ struct iwl_chain_noise_data {
u8 radio_write;
};
-/* IWL4965 */
-#define RATE_MCS_CODE_MSK 0x7
-#define RATE_MCS_MIMO_POS 3
-#define RATE_MCS_MIMO_MSK 0x8
-#define RATE_MCS_HT_DUP_POS 5
-#define RATE_MCS_HT_DUP_MSK 0x20
-#define RATE_MCS_FLAGS_POS 8
-#define RATE_MCS_HT_POS 8
-#define RATE_MCS_HT_MSK 0x100
-#define RATE_MCS_CCK_POS 9
-#define RATE_MCS_CCK_MSK 0x200
-#define RATE_MCS_GF_POS 10
-#define RATE_MCS_GF_MSK 0x400
-
-#define RATE_MCS_FAT_POS 11
-#define RATE_MCS_FAT_MSK 0x800
-#define RATE_MCS_DUP_POS 12
-#define RATE_MCS_DUP_MSK 0x1000
-#define RATE_MCS_SGI_POS 13
-#define RATE_MCS_SGI_MSK 0x2000
-
-#endif /* IWL == 4965 */
-#endif /* __iwl_4965_h__ */
+#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
+#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
+
+
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+
+enum {
+ MEASUREMENT_READY = (1 << 0),
+ MEASUREMENT_ACTIVE = (1 << 1),
+};
+
+#endif
+
+struct iwl4965_priv {
+
+ /* ieee device used by generic ieee processing code */
+ struct ieee80211_hw *hw;
+ struct ieee80211_channel *ieee_channels;
+ struct ieee80211_rate *ieee_rates;
+ struct ieee80211_conf *cache_conf;
+
+ /* temporary frame storage list */
+ struct list_head free_frames;
+ int frames_count;
+
+ u8 phymode;
+ int alloc_rxb_skb;
+
+ void (*rx_handlers[REPLY_MAX])(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb);
+
+ const struct ieee80211_hw_mode *modes;
+
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+ /* spectrum measurement report caching */
+ struct iwl4965_spectrum_notification measure_report;
+ u8 measurement_status;
+#endif
+ /* ucode beacon time */
+ u32 ucode_beacon_time;
+
+ /* we allocate array of iwl4965_channel_info for NIC's valid channels.
+ * Access via channel # using indirect index array */
+ struct iwl4965_channel_info *channel_info; /* channel info array */
+ u8 channel_count; /* # of channels */
+
+ /* each calibration channel group in the EEPROM has a derived
+ * clip setting for each rate. */
+ const struct iwl4965_clip_group clip_groups[5];
+
+ /* thermal calibration */
+ s32 temperature; /* degrees Kelvin */
+ s32 last_temperature;
+
+ /* Scan related variables */
+ unsigned long last_scan_jiffies;
+ unsigned long next_scan_jiffies;
+ unsigned long scan_start;
+ unsigned long scan_pass_start;
+ unsigned long scan_start_tsf;
+ int scan_bands;
+ int one_direct_scan;
+ u8 direct_ssid_len;
+ u8 direct_ssid[IW_ESSID_MAX_SIZE];
+ struct iwl4965_scan_cmd *scan;
+ u8 only_active_channel;
+
+ /* spinlock */
+ spinlock_t lock; /* protect general shared data */
+ spinlock_t hcmd_lock; /* protect hcmd */
+ struct mutex mutex;
+
+ /* basic pci-network driver stuff */
+ struct pci_dev *pci_dev;
+
+ /* pci hardware address support */
+ void __iomem *hw_base;
+
+ /* uCode images, save to reload in case of failure */
+ struct fw_desc ucode_code; /* runtime inst */
+ struct fw_desc ucode_data; /* runtime data original */
+ struct fw_desc ucode_data_backup; /* runtime data save/restore */
+ struct fw_desc ucode_init; /* initialization inst */
+ struct fw_desc ucode_init_data; /* initialization data */
+ struct fw_desc ucode_boot; /* bootstrap inst */
+
+
+ struct iwl4965_rxon_time_cmd rxon_timing;
+
+ /* We declare this const so it can only be
+ * changed via explicit cast within the
+ * routines that actually update the physical
+ * hardware */
+ const struct iwl4965_rxon_cmd active_rxon;
+ struct iwl4965_rxon_cmd staging_rxon;
+
+ int error_recovering;
+ struct iwl4965_rxon_cmd recovery_rxon;
+
+ /* 1st responses from initialize and runtime uCode images.
+ * 4965's initialize alive response contains some calibration data. */
+ struct iwl4965_init_alive_resp card_alive_init;
+ struct iwl4965_alive_resp card_alive;
+
+#ifdef LED
+ /* LED related variables */
+ struct iwl4965_activity_blink activity;
+ unsigned long led_packets;
+ int led_state;
+#endif
+
+ u16 active_rate;
+ u16 active_rate_basic;
+
+ u8 call_post_assoc_from_beacon;
+ u8 assoc_station_added;
+ u8 use_ant_b_for_management_frame; /* Tx antenna selection */
+ u8 valid_antenna; /* Bit mask of antennas actually connected */
+#ifdef CONFIG_IWL4965_SENSITIVITY
+ struct iwl4965_sensitivity_data sensitivity_data;
+ struct iwl4965_chain_noise_data chain_noise_data;
+ u8 start_calib;
+ __le16 sensitivity_tbl[HD_TABLE_SIZE];
+#endif /*CONFIG_IWL4965_SENSITIVITY*/
+
+#ifdef CONFIG_IWL4965_HT
+ struct iwl_ht_info current_ht_config;
+#endif
+ u8 last_phy_res[100];
+
+ /* Rate scaling data */
+ struct iwl4965_lq_mngr lq_mngr;
+
+ /* Rate scaling data */
+ s8 data_retry_limit;
+ u8 retry_rate;
+
+ wait_queue_head_t wait_command_queue;
+
+ int activity_timer_active;
+
+ /* Rx and Tx DMA processing queues */
+ struct iwl4965_rx_queue rxq;
+ struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES];
+ unsigned long txq_ctx_active_msk;
+ struct iwl4965_kw kw; /* keep warm address */
+ u32 scd_base_addr; /* scheduler sram base address */
+
+ unsigned long status;
+ u32 config;
+
+ int last_rx_rssi; /* From Rx packet statisitics */
+ int last_rx_noise; /* From beacon statistics */
+
+ struct iwl4965_power_mgr power_data;
+
+ struct iwl4965_notif_statistics statistics;
+ unsigned long last_statistics_time;
+
+ /* context information */
+ u8 essid[IW_ESSID_MAX_SIZE];
+ u8 essid_len;
+ u16 rates_mask;
+
+ u32 power_mode;
+ u32 antenna;
+ u8 bssid[ETH_ALEN];
+ u16 rts_threshold;
+ u8 mac_addr[ETH_ALEN];
+
+ /*station table variables */
+ spinlock_t sta_lock;
+ int num_stations;
+ struct iwl4965_station_entry stations[IWL_STATION_COUNT];
+
+ /* Indication if ieee80211_ops->open has been called */
+ int is_open;
+
+ u8 mac80211_registered;
+ int is_abg;
+
+ u32 notif_missed_beacons;
+
+ /* Rx'd packet timing information */
+ u32 last_beacon_time;
+ u64 last_tsf;
+
+ /* Duplicate packet detection */
+ u16 last_seq_num;
+ u16 last_frag_num;
+ unsigned long last_packet_time;
+
+ /* Hash table for finding stations in IBSS network */
+ struct list_head ibss_mac_hash[IWL_IBSS_MAC_HASH_SIZE];
+
+ /* eeprom */
+ struct iwl4965_eeprom eeprom;
+
+ int iw_mode;
+
+ struct sk_buff *ibss_beacon;
+
+ /* Last Rx'd beacon timestamp */
+ u32 timestamp0;
+ u32 timestamp1;
+ u16 beacon_int;
+ struct iwl4965_driver_hw_info hw_setting;
+ int interface_id;
+
+ /* Current association information needed to configure the
+ * hardware */
+ u16 assoc_id;
+ u16 assoc_capability;
+ u8 ps_mode;
+
+#ifdef CONFIG_IWL4965_QOS
+ struct iwl4965_qos_info qos_data;
+#endif /*CONFIG_IWL4965_QOS */
+
+ struct workqueue_struct *workqueue;
+
+ struct work_struct up;
+ struct work_struct restart;
+ struct work_struct calibrated_work;
+ struct work_struct scan_completed;
+ struct work_struct rx_replenish;
+ struct work_struct rf_kill;
+ struct work_struct abort_scan;
+ struct work_struct update_link_led;
+ struct work_struct auth_work;
+ struct work_struct report_work;
+ struct work_struct request_scan;
+ struct work_struct beacon_update;
+
+ struct tasklet_struct irq_tasklet;
+
+ struct work_struct init_alive_start;
+ struct work_struct alive_start;
+ struct work_struct activity_timer;
+ struct work_struct thermal_periodic;
+ struct work_struct gather_stats;
+ struct work_struct scan_check;
+ struct work_struct post_associate;
+
+#define IWL_DEFAULT_TX_POWER 0x0F
+ s8 user_txpower_limit;
+ s8 max_channel_txpower_limit;
+
+#ifdef CONFIG_PM
+ u32 pm_state[16];
+#endif
+
+#ifdef CONFIG_IWL4965_DEBUG
+ /* debugging info */
+ u32 framecnt_to_us;
+ atomic_t restrict_refcnt;
+#endif
+
+ struct work_struct txpower_work;
+#ifdef CONFIG_IWL4965_SENSITIVITY
+ struct work_struct sensitivity_work;
+#endif
+ struct work_struct statistics_work;
+ struct timer_list statistics_periodic;
+
+#ifdef CONFIG_IWL4965_HT_AGG
+ struct work_struct agg_work;
+#endif
+}; /*iwl4965_priv */
+
+static inline int iwl4965_is_associated(struct iwl4965_priv *priv)
+{
+ return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
+}
+
+static inline int is_channel_valid(const struct iwl4965_channel_info *ch_info)
+{
+ if (ch_info == NULL)
+ return 0;
+ return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
+}
+
+static inline int is_channel_narrow(const struct iwl4965_channel_info *ch_info)
+{
+ return (ch_info->flags & EEPROM_CHANNEL_NARROW) ? 1 : 0;
+}
+
+static inline int is_channel_radar(const struct iwl4965_channel_info *ch_info)
+{
+ return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
+}
+
+static inline u8 is_channel_a_band(const struct iwl4965_channel_info *ch_info)
+{
+ return ch_info->phymode == MODE_IEEE80211A;
+}
+
+static inline u8 is_channel_bg_band(const struct iwl4965_channel_info *ch_info)
+{
+ return ((ch_info->phymode == MODE_IEEE80211B) ||
+ (ch_info->phymode == MODE_IEEE80211G));
+}
+
+static inline int is_channel_passive(const struct iwl4965_channel_info *ch)
+{
+ return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
+}
+
+static inline int is_channel_ibss(const struct iwl4965_channel_info *ch)
+{
+ return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0;
+}
+
+extern const struct iwl4965_channel_info *iwl4965_get_channel_info(
+ const struct iwl4965_priv *priv, int phymode, u16 channel);
+
+/* Requires full declaration of iwl4965_priv before including */
+#include "iwl-4965-io.h"
+
+#endif /* __iwl4965_4965_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl-channel.h b/drivers/net/wireless/iwlwifi/iwl-channel.h
index d320c2b..023c3f2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-channel.h
+++ b/drivers/net/wireless/iwlwifi/iwl-channel.h
@@ -136,15 +136,13 @@ static inline int is_channel_radar(const struct iwl_channel_info *ch_info)
static inline u8 is_channel_a_band(const struct iwl_channel_info *ch_info)
{
- return ((ch_info->phymode == MODE_IEEE80211A) ||
- (ch_info->phymode == MODE_ATHEROS_TURBO)) ? 1 : 0;
+ return ch_info->phymode == MODE_IEEE80211A;
}
static inline u8 is_channel_bg_band(const struct iwl_channel_info *ch_info)
{
return ((ch_info->phymode == MODE_IEEE80211B) ||
- (ch_info->phymode == MODE_IEEE80211G) ||
- (ch_info->phymode == MODE_ATHEROS_TURBOG)) ? 1 : 0;
+ (ch_info->phymode == MODE_IEEE80211G));
}
static inline int is_channel_passive(const struct iwl_channel_info *ch)
@@ -158,6 +156,6 @@ static inline int is_channel_ibss(const struct iwl_channel_info *ch)
}
extern const struct iwl_channel_info *iwl_get_channel_info(
- const struct iwl_priv *priv, int phymode, int channel);
+ const struct iwl_priv *priv, int phymode, u16 channel);
#endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index f0c0107..9de8d7f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -68,7 +68,7 @@ enum {
REPLY_ALIVE = 0x1,
REPLY_ERROR = 0x2,
- /* RXON state commands */
+ /* RXON and QOS commands */
REPLY_RXON = 0x10,
REPLY_RXON_ASSOC = 0x11,
REPLY_QOS_PARAM = 0x13,
@@ -76,39 +76,27 @@ enum {
/* Multi-Station support */
REPLY_ADD_STA = 0x18,
-#if IWL == 3945
- REPLY_REMOVE_STA = 0x19,
- REPLY_REMOVE_ALL_STA = 0x1a,
-#endif
+ REPLY_REMOVE_STA = 0x19, /* not used */
+ REPLY_REMOVE_ALL_STA = 0x1a, /* not used */
- /* RX, TX */
+ /* RX, TX, LEDs */
#if IWL == 3945
- REPLY_3945_RX = 0x1b,
+ REPLY_3945_RX = 0x1b, /* 3945 only */
#endif
-
REPLY_TX = 0x1c,
-
- /* timers commands */
- REPLY_BCON = 0x27,
-
-#if IWL == 4965
- REPLY_SHUTDOWN = 0x40,
-#endif
-
- /* MISC commands */
- REPLY_RATE_SCALE = 0x47,
+ REPLY_RATE_SCALE = 0x47, /* 3945 only */
REPLY_LEDS_CMD = 0x48,
- REPLY_TX_LINK_QUALITY_CMD = 0x4e,
+ REPLY_TX_LINK_QUALITY_CMD = 0x4e, /* 4965 only */
/* 802.11h related */
- RADAR_NOTIFICATION = 0x70,
- REPLY_QUIET_CMD = 0x71,
+ RADAR_NOTIFICATION = 0x70, /* not used */
+ REPLY_QUIET_CMD = 0x71, /* not used */
REPLY_CHANNEL_SWITCH = 0x72,
CHANNEL_SWITCH_NOTIFICATION = 0x73,
REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74,
SPECTRUM_MEASURE_NOTIFICATION = 0x75,
- /* Power Management *** */
+ /* Power Management */
POWER_TABLE_CMD = 0x77,
PM_SLEEP_NOTIFICATION = 0x7A,
PM_DEBUG_STATISTIC_NOTIFIC = 0x7B,
@@ -116,7 +104,6 @@ enum {
/* Scan commands and notifications */
REPLY_SCAN_CMD = 0x80,
REPLY_SCAN_ABORT_CMD = 0x81,
-
SCAN_START_NOTIFICATION = 0x82,
SCAN_RESULTS_NOTIFICATION = 0x83,
SCAN_COMPLETE_NOTIFICATION = 0x84,
@@ -124,110 +111,602 @@ enum {
/* IBSS/AP commands */
BEACON_NOTIFICATION = 0x90,
REPLY_TX_BEACON = 0x91,
- WHO_IS_AWAKE_NOTIFICATION = 0x94,
+ WHO_IS_AWAKE_NOTIFICATION = 0x94, /* not used */
- QUIET_NOTIFICATION = 0x96,
+ /* Miscellaneous commands */
+ QUIET_NOTIFICATION = 0x96, /* not used */
REPLY_TX_PWR_TABLE_CMD = 0x97,
- MEASURE_ABORT_NOTIFICATION = 0x99,
-
- REPLY_CALIBRATION_TUNE = 0x9a,
+ MEASURE_ABORT_NOTIFICATION = 0x99, /* not used */
/* BT config command */
REPLY_BT_CONFIG = 0x9b,
+
+ /* 4965 Statistics */
REPLY_STATISTICS_CMD = 0x9c,
STATISTICS_NOTIFICATION = 0x9d,
- /* RF-KILL commands and notifications *** */
+ /* RF-KILL commands and notifications */
REPLY_CARD_STATE_CMD = 0xa0,
CARD_STATE_NOTIFICATION = 0xa1,
/* Missed beacons notification */
MISSED_BEACONS_NOTIFICATION = 0xa2,
- MISSED_BEACONS_NOTIFICATION_TH_CMD = 0xa3,
#if IWL == 4965
REPLY_CT_KILL_CONFIG_CMD = 0xa4,
SENSITIVITY_CMD = 0xa8,
REPLY_PHY_CALIBRATION_CMD = 0xb0,
- REPLY_4965_RX = 0xc3,
REPLY_RX_PHY_CMD = 0xc0,
REPLY_RX_MPDU_CMD = 0xc1,
+ REPLY_4965_RX = 0xc3,
REPLY_COMPRESSED_BA = 0xc5,
#endif
REPLY_MAX = 0xff
};
+/******************************************************************************
+ * (0)
+ * Header
+ *
+ *****************************************************************************/
+
+#define IWL_CMD_FAILED_MSK 0x40
+
+struct iwl_cmd_header {
+ u8 cmd;
+ u8 flags;
+ /* We have 15 LSB to use as we please (MSB indicates
+ * a frame Rx'd from the HW). We encode the following
+ * information into the sequence field:
+ *
+ * 0:7 index in fifo
+ * 8:13 fifo selection
+ * 14:14 bit indicating if this packet references the 'extra'
+ * storage at the end of the memory queue
+ * 15:15 (Rx indication)
+ *
+ */
+ __le16 sequence;
+
+ /* command data follows immediately */
+ u8 data[0];
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (0a)
+ * Alive and Error Commands & Responses:
+ *
+ *****************************************************************************/
+
+#define UCODE_VALID_OK __constant_cpu_to_le32(0x1)
+#define INITIALIZE_SUBTYPE (9)
+
/*
- * Tx Command & Response:
+ * REPLY_ALIVE = 0x1 (response only, not a command)
*/
+struct iwl_alive_resp {
+ u8 ucode_minor;
+ u8 ucode_major;
+ __le16 reserved1;
+ u8 sw_rev[8];
+ u8 ver_type;
+ u8 ver_subtype;
+ __le16 reserved2;
+ __le32 log_event_table_ptr;
+ __le32 error_event_table_ptr;
+ __le32 timestamp;
+ __le32 is_valid;
+} __attribute__ ((packed));
-/* Tx flags */
-enum {
- TX_CMD_FLG_RTS_MSK = (1 << 1),
- TX_CMD_FLG_CTS_MSK = (1 << 2),
- TX_CMD_FLG_ACK_MSK = (1 << 3),
- TX_CMD_FLG_STA_RATE_MSK = (1 << 4),
- TX_CMD_FLG_IMM_BA_RSP_MASK = (1 << 6),
- TX_CMD_FLG_FULL_TXOP_PROT_MSK = (1 << 7),
- TX_CMD_FLG_ANT_SEL_MSK = 0xf00,
- TX_CMD_FLG_ANT_A_MSK = (1 << 8),
- TX_CMD_FLG_ANT_B_MSK = (1 << 9),
+struct iwl_init_alive_resp {
+ u8 ucode_minor;
+ u8 ucode_major;
+ __le16 reserved1;
+ u8 sw_rev[8];
+ u8 ver_type;
+ u8 ver_subtype;
+ __le16 reserved2;
+ __le32 log_event_table_ptr;
+ __le32 error_event_table_ptr;
+ __le32 timestamp;
+ __le32 is_valid;
- /* ucode ignores BT priority for this frame */
- TX_CMD_FLG_BT_DIS_MSK = (1 << 12),
+#if IWL == 4965
+ /* calibration values from "initialize" uCode */
+ __le32 voltage; /* signed */
+ __le32 therm_r1[2]; /* signed 1st for normal, 2nd for FAT channel */
+ __le32 therm_r2[2]; /* signed */
+ __le32 therm_r3[2]; /* signed */
+ __le32 therm_r4[2]; /* signed */
+ __le32 tx_atten[5][2]; /* signed MIMO gain comp, 5 freq groups,
+ * 2 Tx chains */
+#endif
+} __attribute__ ((packed));
- /* ucode overrides sequence control */
- TX_CMD_FLG_SEQ_CTL_MSK = (1 << 13),
+union tsf {
+ u8 byte[8];
+ __le16 word[4];
+ __le32 dw[2];
+};
- /* signal that this frame is non-last MPDU */
- TX_CMD_FLG_MORE_FRAG_MSK = (1 << 14),
+/*
+ * REPLY_ERROR = 0x2 (response only, not a command)
+ */
+struct iwl_error_resp {
+ __le32 error_type;
+ u8 cmd_id;
+ u8 reserved1;
+ __le16 bad_cmd_seq_num;
+#if IWL == 3945
+ __le16 reserved2;
+#endif
+ __le32 error_info;
+ union tsf timestamp;
+} __attribute__ ((packed));
- /* calculate TSF in outgoing frame */
- TX_CMD_FLG_TSF_MSK = (1 << 16),
+/******************************************************************************
+ * (1)
+ * RXON Commands & Responses:
+ *
+ *****************************************************************************/
- /* activate TX calibration. */
- TX_CMD_FLG_CALIB_MSK = (1 << 17),
+/*
+ * Rx config defines & structure
+ */
+/* rx_config device types */
+enum {
+ RXON_DEV_TYPE_AP = 1,
+ RXON_DEV_TYPE_ESS = 3,
+ RXON_DEV_TYPE_IBSS = 4,
+ RXON_DEV_TYPE_SNIFFER = 6,
+};
- /* signals that 2 bytes pad was inserted
- * after the MAC header */
- TX_CMD_FLG_MH_PAD_MSK = (1 << 20),
+/* rx_config flags */
+/* band & modulation selection */
+#define RXON_FLG_BAND_24G_MSK __constant_cpu_to_le32(1 << 0)
+#define RXON_FLG_CCK_MSK __constant_cpu_to_le32(1 << 1)
+/* auto detection enable */
+#define RXON_FLG_AUTO_DETECT_MSK __constant_cpu_to_le32(1 << 2)
+/* TGg protection when tx */
+#define RXON_FLG_TGG_PROTECT_MSK __constant_cpu_to_le32(1 << 3)
+/* cck short slot & preamble */
+#define RXON_FLG_SHORT_SLOT_MSK __constant_cpu_to_le32(1 << 4)
+#define RXON_FLG_SHORT_PREAMBLE_MSK __constant_cpu_to_le32(1 << 5)
+/* antenna selection */
+#define RXON_FLG_DIS_DIV_MSK __constant_cpu_to_le32(1 << 7)
+#define RXON_FLG_ANT_SEL_MSK __constant_cpu_to_le32(0x0f00)
+#define RXON_FLG_ANT_A_MSK __constant_cpu_to_le32(1 << 8)
+#define RXON_FLG_ANT_B_MSK __constant_cpu_to_le32(1 << 9)
+/* radar detection enable */
+#define RXON_FLG_RADAR_DETECT_MSK __constant_cpu_to_le32(1 << 12)
+#define RXON_FLG_TGJ_NARROW_BAND_MSK __constant_cpu_to_le32(1 << 13)
+/* rx response to host with 8-byte TSF
+* (according to ON_AIR deassertion) */
+#define RXON_FLG_TSF2HOST_MSK __constant_cpu_to_le32(1 << 15)
+
+/* rx_config filter flags */
+/* accept all data frames */
+#define RXON_FILTER_PROMISC_MSK __constant_cpu_to_le32(1 << 0)
+/* pass control & management to host */
+#define RXON_FILTER_CTL2HOST_MSK __constant_cpu_to_le32(1 << 1)
+/* accept multi-cast */
+#define RXON_FILTER_ACCEPT_GRP_MSK __constant_cpu_to_le32(1 << 2)
+/* don't decrypt uni-cast frames */
+#define RXON_FILTER_DIS_DECRYPT_MSK __constant_cpu_to_le32(1 << 3)
+/* don't decrypt multi-cast frames */
+#define RXON_FILTER_DIS_GRP_DECRYPT_MSK __constant_cpu_to_le32(1 << 4)
+/* STA is associated */
+#define RXON_FILTER_ASSOC_MSK __constant_cpu_to_le32(1 << 5)
+/* transfer to host non bssid beacons in associated state */
+#define RXON_FILTER_BCON_AWARE_MSK __constant_cpu_to_le32(1 << 6)
- /* HCCA-AP - disable duration overwriting. */
- TX_CMD_FLG_DUR_MSK = (1 << 25),
-};
+/*
+ * REPLY_RXON = 0x10 (command, has simple generic response)
+ */
+struct iwl_rxon_cmd {
+ u8 node_addr[6];
+ __le16 reserved1;
+ u8 bssid_addr[6];
+ __le16 reserved2;
+ u8 wlap_bssid_addr[6];
+ __le16 reserved3;
+ u8 dev_type;
+ u8 air_propagation;
+#if IWL == 3945
+ __le16 reserved4;
+#elif IWL == 4965
+ __le16 rx_chain;
+#endif
+ u8 ofdm_basic_rates;
+ u8 cck_basic_rates;
+ __le16 assoc_id;
+ __le32 flags;
+ __le32 filter_flags;
+ __le16 channel;
+#if IWL == 3945
+ __le16 reserved5;
+#elif IWL == 4965
+ u8 ofdm_ht_single_stream_basic_rates;
+ u8 ofdm_ht_dual_stream_basic_rates;
+#endif
+} __attribute__ ((packed));
/*
- * TX command security control
+ * REPLY_RXON_ASSOC = 0x11 (command, has simple generic response)
*/
-#define TX_CMD_SEC_CCM 0x2
-#define TX_CMD_SEC_TKIP 0x3
+struct iwl_rxon_assoc_cmd {
+ __le32 flags;
+ __le32 filter_flags;
+ u8 ofdm_basic_rates;
+ u8 cck_basic_rates;
+#if IWL == 4965
+ u8 ofdm_ht_single_stream_basic_rates;
+ u8 ofdm_ht_dual_stream_basic_rates;
+ __le16 rx_chain_select_flags;
+#endif
+ __le16 reserved;
+} __attribute__ ((packed));
/*
- * TX command Frame life time
+ * REPLY_RXON_TIMING = 0x14 (command, has simple generic response)
*/
+struct iwl_rxon_time_cmd {
+ union tsf timestamp;
+ __le16 beacon_interval;
+ __le16 atim_window;
+ __le32 beacon_init_val;
+ __le16 listen_interval;
+ __le16 reserved;
+} __attribute__ ((packed));
+
+struct iwl_tx_power {
+ u8 tx_gain; /* gain for analog radio */
+ u8 dsp_atten; /* gain for DSP */
+} __attribute__ ((packed));
#if IWL == 3945
-struct iwl_rate {
- union {
- struct {
- u8 rate;
- u8 flags;
- } s;
- __le16 rate_n_flags;
- };
+struct iwl_power_per_rate {
+ u8 rate; /* plcp */
+ struct iwl_tx_power tpc;
+ u8 reserved;
} __attribute__ ((packed));
+
#elif IWL == 4965
-struct iwl_rate {
- union {
- struct {
- u8 rate;
- u8 flags;
- __le16 ext_flags;
- } s;
- __le32 rate_n_flags;
- };
+#define POWER_TABLE_NUM_ENTRIES 33
+#define POWER_TABLE_NUM_HT_OFDM_ENTRIES 32
+#define POWER_TABLE_CCK_ENTRY 32
+struct tx_power_dual_stream {
+ __le32 dw;
+} __attribute__ ((packed));
+
+struct iwl_tx_power_db {
+ struct tx_power_dual_stream power_tbl[POWER_TABLE_NUM_ENTRIES];
+} __attribute__ ((packed));
+#endif
+
+/*
+ * REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response)
+ */
+struct iwl_channel_switch_cmd {
+ u8 band;
+ u8 expect_beacon;
+ __le16 channel;
+ __le32 rxon_flags;
+ __le32 rxon_filter_flags;
+ __le32 switch_time;
+#if IWL == 3945
+ struct iwl_power_per_rate power[IWL_MAX_RATES];
+#elif IWL == 4965
+ struct iwl_tx_power_db tx_power;
+#endif
+} __attribute__ ((packed));
+
+/*
+ * CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command)
+ */
+struct iwl_csa_notification {
+ __le16 band;
+ __le16 channel;
+ __le32 status; /* 0 - OK, 1 - fail */
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (2)
+ * Quality-of-Service (QOS) Commands & Responses:
+ *
+ *****************************************************************************/
+struct iwl_ac_qos {
+ __le16 cw_min;
+ __le16 cw_max;
+ u8 aifsn;
+ u8 reserved1;
+ __le16 edca_txop;
+} __attribute__ ((packed));
+
+/* QoS flags defines */
+#define QOS_PARAM_FLG_UPDATE_EDCA_MSK __constant_cpu_to_le32(0x01)
+#define QOS_PARAM_FLG_TGN_MSK __constant_cpu_to_le32(0x02)
+#define QOS_PARAM_FLG_TXOP_TYPE_MSK __constant_cpu_to_le32(0x10)
+
+/*
+ * TXFIFO Queue number defines
+ */
+/* number of Access categories (AC) (EDCA), queues 0..3 */
+#define AC_NUM 4
+
+/*
+ * REPLY_QOS_PARAM = 0x13 (command, has simple generic response)
+ */
+struct iwl_qosparam_cmd {
+ __le32 qos_flags;
+ struct iwl_ac_qos ac[AC_NUM];
} __attribute__ ((packed));
+
+/******************************************************************************
+ * (3)
+ * Add/Modify Stations Commands & Responses:
+ *
+ *****************************************************************************/
+/*
+ * Multi station support
+ */
+#define IWL_AP_ID 0
+#define IWL_MULTICAST_ID 1
+#define IWL_STA_ID 2
+
+#define IWL3945_BROADCAST_ID 24
+#define IWL3945_STATION_COUNT 25
+
+#define IWL4965_BROADCAST_ID 31
+#define IWL4965_STATION_COUNT 32
+
+#define IWL_STATION_COUNT 32 /* MAX(3945,4965)*/
+#define IWL_INVALID_STATION 255
+
+#if IWL == 3945
+#define STA_FLG_TX_RATE_MSK __constant_cpu_to_le32(1<<2);
#endif
+#define STA_FLG_PWR_SAVE_MSK __constant_cpu_to_le32(1<<8);
+
+#define STA_CONTROL_MODIFY_MSK 0x01
+
+/* key flags __le16*/
+#define STA_KEY_FLG_ENCRYPT_MSK __constant_cpu_to_le16(0x7)
+#define STA_KEY_FLG_NO_ENC __constant_cpu_to_le16(0x0)
+#define STA_KEY_FLG_WEP __constant_cpu_to_le16(0x1)
+#define STA_KEY_FLG_CCMP __constant_cpu_to_le16(0x2)
+#define STA_KEY_FLG_TKIP __constant_cpu_to_le16(0x3)
+
+#define STA_KEY_FLG_KEYID_POS 8
+#define STA_KEY_FLG_INVALID __constant_cpu_to_le16(0x0800)
+
+/* modify flags */
+#define STA_MODIFY_KEY_MASK 0x01
+#define STA_MODIFY_TID_DISABLE_TX 0x02
+#define STA_MODIFY_TX_RATE_MSK 0x04
+#define STA_MODIFY_ADDBA_TID_MSK 0x08
+#define STA_MODIFY_DELBA_TID_MSK 0x10
+#define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid))
+
+/*
+ * Antenna masks:
+ * bit14:15 01 B inactive, A active
+ * 10 B active, A inactive
+ * 11 Both active
+ */
+#define RATE_MCS_ANT_A_POS 14
+#define RATE_MCS_ANT_B_POS 15
+#define RATE_MCS_ANT_A_MSK 0x4000
+#define RATE_MCS_ANT_B_MSK 0x8000
+#define RATE_MCS_ANT_AB_MSK 0xc000
+
+struct iwl_keyinfo {
+ __le16 key_flags;
+ u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
+ u8 reserved1;
+ __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
+ __le16 reserved2;
+ u8 key[16]; /* 16-byte unicast decryption key */
+} __attribute__ ((packed));
+
+struct sta_id_modify {
+ u8 addr[ETH_ALEN];
+ __le16 reserved1;
+ u8 sta_id;
+ u8 modify_mask;
+ __le16 reserved2;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_ADD_STA = 0x18 (command)
+ */
+struct iwl_addsta_cmd {
+ u8 mode;
+ u8 reserved[3];
+ struct sta_id_modify sta;
+ struct iwl_keyinfo key;
+ __le32 station_flags;
+ __le32 station_flags_msk;
+ __le16 tid_disable_tx;
+#if IWL == 3945
+ __le16 rate_n_flags;
+#else
+ __le16 reserved1;
+#endif
+ u8 add_immediate_ba_tid;
+ u8 remove_immediate_ba_tid;
+ __le16 add_immediate_ba_ssn;
+#if IWL == 4965
+ __le32 reserved2;
+#endif
+} __attribute__ ((packed));
+
+/*
+ * REPLY_ADD_STA = 0x18 (response)
+ */
+struct iwl_add_sta_resp {
+ u8 status;
+} __attribute__ ((packed));
+
+#define ADD_STA_SUCCESS_MSK 0x1
+
+/******************************************************************************
+ * (4)
+ * Rx Responses:
+ *
+ *****************************************************************************/
+
+struct iwl_rx_frame_stats {
+ u8 phy_count;
+ u8 id;
+ u8 rssi;
+ u8 agc;
+ __le16 sig_avg;
+ __le16 noise_diff;
+ u8 payload[0];
+} __attribute__ ((packed));
+
+struct iwl_rx_frame_hdr {
+ __le16 channel;
+ __le16 phy_flags;
+ u8 reserved1;
+ u8 rate;
+ __le16 len;
+ u8 payload[0];
+} __attribute__ ((packed));
+
+#define RX_RES_STATUS_NO_CRC32_ERROR __constant_cpu_to_le32(1 << 0)
+#define RX_RES_STATUS_NO_RXE_OVERFLOW __constant_cpu_to_le32(1 << 1)
+
+#define RX_RES_PHY_FLAGS_BAND_24_MSK __constant_cpu_to_le16(1 << 0)
+#define RX_RES_PHY_FLAGS_MOD_CCK_MSK __constant_cpu_to_le16(1 << 1)
+#define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK __constant_cpu_to_le16(1 << 2)
+#define RX_RES_PHY_FLAGS_NARROW_BAND_MSK __constant_cpu_to_le16(1 << 3)
+#define RX_RES_PHY_FLAGS_ANTENNA_MSK __constant_cpu_to_le16(0xf0)
+
+#define RX_RES_STATUS_SEC_TYPE_MSK (0x7 << 8)
+#define RX_RES_STATUS_SEC_TYPE_NONE (0x0 << 8)
+#define RX_RES_STATUS_SEC_TYPE_WEP (0x1 << 8)
+#define RX_RES_STATUS_SEC_TYPE_CCMP (0x2 << 8)
+#define RX_RES_STATUS_SEC_TYPE_TKIP (0x3 << 8)
+
+#define RX_RES_STATUS_DECRYPT_TYPE_MSK (0x3 << 11)
+#define RX_RES_STATUS_NOT_DECRYPT (0x0 << 11)
+#define RX_RES_STATUS_DECRYPT_OK (0x3 << 11)
+#define RX_RES_STATUS_BAD_ICV_MIC (0x1 << 11)
+#define RX_RES_STATUS_BAD_KEY_TTAK (0x2 << 11)
+
+struct iwl_rx_frame_end {
+ __le32 status;
+ __le64 timestamp;
+ __le32 beacon_timestamp;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_3945_RX = 0x1b (response only, not a command)
+ *
+ * NOTE: DO NOT dereference from casts to this structure
+ * It is provided only for calculating minimum data set size.
+ * The actual offsets of the hdr and end are dynamic based on
+ * stats.phy_count
+ */
+struct iwl_rx_frame {
+ struct iwl_rx_frame_stats stats;
+ struct iwl_rx_frame_hdr hdr;
+ struct iwl_rx_frame_end end;
+} __attribute__ ((packed));
+
+/* Fixed (non-configurable) rx data from phy */
+#define RX_PHY_FLAGS_ANTENNAE_OFFSET (4)
+#define RX_PHY_FLAGS_ANTENNAE_MASK (0x70)
+#define IWL_AGC_DB_MASK (0x3f80) /* MASK(7,13) */
+#define IWL_AGC_DB_POS (7)
+struct iwl4965_rx_non_cfg_phy {
+ __le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */
+ __le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */
+ u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */
+ u8 pad[0];
+} __attribute__ ((packed));
+
+/*
+ * REPLY_4965_RX = 0xc3 (response only, not a command)
+ * Used only for legacy (non 11n) frames.
+ */
+#define RX_RES_PHY_CNT 14
+struct iwl4965_rx_phy_res {
+ u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */
+ u8 cfg_phy_cnt; /* configurable DSP phy data byte count */
+ u8 stat_id; /* configurable DSP phy data set ID */
+ u8 reserved1;
+ __le64 timestamp; /* TSF at on air rise */
+ __le32 beacon_time_stamp; /* beacon at on-air rise */
+ __le16 phy_flags; /* general phy flags: band, modulation, ... */
+ __le16 channel; /* channel number */
+ __le16 non_cfg_phy[RX_RES_PHY_CNT]; /* upto 14 phy entries */
+ __le32 reserved2;
+ __le32 rate_n_flags;
+ __le16 byte_count; /* frame's byte-count */
+ __le16 reserved3;
+} __attribute__ ((packed));
+
+struct iwl4965_rx_mpdu_res_start {
+ __le16 byte_count;
+ __le16 reserved;
+} __attribute__ ((packed));
+
+
+/******************************************************************************
+ * (5)
+ * Tx Commands & Responses:
+ *
+ *****************************************************************************/
+
+/* Tx flags */
+#define TX_CMD_FLG_RTS_MSK __constant_cpu_to_le32(1 << 1)
+#define TX_CMD_FLG_CTS_MSK __constant_cpu_to_le32(1 << 2)
+#define TX_CMD_FLG_ACK_MSK __constant_cpu_to_le32(1 << 3)
+#define TX_CMD_FLG_STA_RATE_MSK __constant_cpu_to_le32(1 << 4)
+#define TX_CMD_FLG_IMM_BA_RSP_MASK __constant_cpu_to_le32(1 << 6)
+#define TX_CMD_FLG_FULL_TXOP_PROT_MSK __constant_cpu_to_le32(1 << 7)
+#define TX_CMD_FLG_ANT_SEL_MSK __constant_cpu_to_le32(0xf00)
+#define TX_CMD_FLG_ANT_A_MSK __constant_cpu_to_le32(1 << 8)
+#define TX_CMD_FLG_ANT_B_MSK __constant_cpu_to_le32(1 << 9)
+
+/* ucode ignores BT priority for this frame */
+#define TX_CMD_FLG_BT_DIS_MSK __constant_cpu_to_le32(1 << 12)
+
+/* ucode overrides sequence control */
+#define TX_CMD_FLG_SEQ_CTL_MSK __constant_cpu_to_le32(1 << 13)
+
+/* signal that this frame is non-last MPDU */
+#define TX_CMD_FLG_MORE_FRAG_MSK __constant_cpu_to_le32(1 << 14)
+
+/* calculate TSF in outgoing frame */
+#define TX_CMD_FLG_TSF_MSK __constant_cpu_to_le32(1 << 16)
+
+/* activate TX calibration. */
+#define TX_CMD_FLG_CALIB_MSK __constant_cpu_to_le32(1 << 17)
+
+/* signals that 2 bytes pad was inserted
+ after the MAC header */
+#define TX_CMD_FLG_MH_PAD_MSK __constant_cpu_to_le32(1 << 20)
+
+/* HCCA-AP - disable duration overwriting. */
+#define TX_CMD_FLG_DUR_MSK __constant_cpu_to_le32(1 << 25)
+
+/*
+ * TX command security control
+ */
+#define TX_CMD_SEC_WEP 0x01
+#define TX_CMD_SEC_CCM 0x02
+#define TX_CMD_SEC_TKIP 0x03
+#define TX_CMD_SEC_MSK 0x03
+#define TX_CMD_SEC_SHIFT 6
+#define TX_CMD_SEC_KEY128 0x08
+
+/*
+ * TX command Frame life time
+ */
struct iwl_dram_scratch {
u8 try_cnt;
@@ -235,6 +714,9 @@ struct iwl_dram_scratch {
__le16 reserved;
} __attribute__ ((packed));
+/*
+ * REPLY_TX = 0x1c (command)
+ */
struct iwl_tx_cmd {
__le16 len;
__le16 next_frame_len;
@@ -245,7 +727,7 @@ struct iwl_tx_cmd {
u8 tid_tspec;
#elif IWL == 4965
struct iwl_dram_scratch scratch;
- struct iwl_rate rate;
+ __le32 rate_n_flags;
u8 sta_id;
#endif
u8 sec_ctl;
@@ -289,8 +771,32 @@ struct iwl_tx_cmd {
struct ieee80211_hdr hdr[0];
} __attribute__ ((packed));
-/*
- * TX command response status
+/* TX command response is sent after *all* transmission attempts.
+ *
+ * NOTES:
+ *
+ * TX_STATUS_FAIL_NEXT_FRAG
+ *
+ * If the fragment flag in the MAC header for the frame being transmitted
+ * is set and there is insufficient time to transmit the next frame, the
+ * TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'.
+ *
+ * TX_STATUS_FIFO_UNDERRUN
+ *
+ * Indicates the host did not provide bytes to the FIFO fast enough while
+ * a TX was in progress.
+ *
+ * TX_STATUS_FAIL_MGMNT_ABORT
+ *
+ * This status is only possible if the ABORT ON MGMT RX parameter was
+ * set to true with the TX command.
+ *
+ * If the MSB of the status parameter is set then an abort sequence is
+ * required. This sequence consists of the host activating the TX Abort
+ * control line, and then waiting for the TX Abort command response. This
+ * indicates that a the device is no longer in a transmit state, and that the
+ * command FIFO has been cleared. The host must then deactivate the TX Abort
+ * control line. Receiving is still allowed in this case.
*/
enum {
TX_STATUS_SUCCESS = 0x01,
@@ -313,11 +819,9 @@ enum {
TX_STATUS_FAIL_NO_BEACON_ON_RADAR = 0x91,
};
-enum {
- TX_PACKET_MODE_REGULAR = 0x0000,
- TX_PACKET_MODE_BURST_PART = 0x00100,
- TX_PACKET_MODE_BURST_FIRST = 0x0200,
-};
+#define TX_PACKET_MODE_REGULAR 0x0000
+#define TX_PACKET_MODE_BURST_SEQ 0x0100
+#define TX_PACKET_MODE_BURST_FIRST 0x0200
enum {
TX_POWER_PA_NOT_ACTIVE = 0x0,
@@ -365,69 +869,403 @@ enum {
#define AGG_TX_STATE_SEQ_NUM_POS 16
#define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000
-struct iwl_tx_resp {
+/*
+ * REPLY_TX = 0x1c (response)
+ */
#if IWL == 4965
+struct iwl_tx_resp {
u8 frame_count; /* 1 no aggregation, >1 aggregation */
u8 bt_kill_count;
-#endif
u8 failure_rts;
u8 failure_frame;
-#if IWL == 3945
- u8 bt_kill_count;
- u8 rate;
- __le32 wireless_media_time;
-#elif IWL == 4965
- struct iwl_rate rate;
+ __le32 rate_n_flags;
__le16 wireless_media_time;
__le16 reserved;
__le32 pa_power1;
__le32 pa_power2;
-#endif
__le32 status; /* TX status (for aggregation status of 1st frame) */
} __attribute__ ((packed));
-/* TX command response is sent after *all* transmission attempts.
+#elif IWL == 3945
+struct iwl_tx_resp {
+ u8 failure_rts;
+ u8 failure_frame;
+ u8 bt_kill_count;
+ u8 rate;
+ __le32 wireless_media_time;
+ __le32 status; /* TX status (for aggregation status of 1st frame) */
+} __attribute__ ((packed));
+#endif
+
+/*
+ * REPLY_COMPRESSED_BA = 0xc5 (response only, not a command)
+ */
+struct iwl_compressed_ba_resp {
+ __le32 sta_addr_lo32;
+ __le16 sta_addr_hi16;
+ __le16 reserved;
+ u8 sta_id;
+ u8 tid;
+ __le16 ba_seq_ctl;
+ __le32 ba_bitmap0;
+ __le32 ba_bitmap1;
+ __le16 scd_flow;
+ __le16 scd_ssn;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response)
+ */
+struct iwl_txpowertable_cmd {
+ u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
+ u8 reserved;
+ __le16 channel;
+#if IWL == 3945
+ struct iwl_power_per_rate power[IWL_MAX_RATES];
+#elif IWL == 4965
+ struct iwl_tx_power_db tx_power;
+#endif
+} __attribute__ ((packed));
+
+#if IWL == 3945
+struct iwl_rate_scaling_info {
+ __le16 rate_n_flags;
+ u8 try_cnt;
+ u8 next_rate_index;
+} __attribute__ ((packed));
+
+/**
+ * struct iwl_rate_scaling_cmd - Rate Scaling Command & Response
*
- * NOTES:
+ * REPLY_RATE_SCALE = 0x47 (command, has simple generic response)
*
- * TX_STATUS_FAIL_NEXT_FRAG
+ * NOTE: The table of rates passed to the uCode via the
+ * RATE_SCALE command sets up the corresponding order of
+ * rates used for all related commands, including rate
+ * masks, etc.
*
- * If the fragment flag in the MAC header for the frame being transmitted
- * is set and there is insufficient time to transmit the next frame, the
- * TX status will be returned with 'TX_STATUS_FAIL_NEXT_FRAG'.
+ * For example, if you set 9MB (PLCP 0x0f) as the first
+ * rate in the rate table, the bit mask for that rate
+ * when passed through ofdm_basic_rates on the REPLY_RXON
+ * command would be bit 0 (1<<0)
+ */
+struct iwl_rate_scaling_cmd {
+ u8 table_id;
+ u8 reserved[3];
+ struct iwl_rate_scaling_info table[IWL_MAX_RATES];
+} __attribute__ ((packed));
+
+#elif IWL == 4965
+
+/*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */
+#define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1<<0)
+
+#define LINK_QUAL_AC_NUM AC_NUM
+#define LINK_QUAL_MAX_RETRY_NUM 16
+
+#define LINK_QUAL_ANT_A_MSK (1<<0)
+#define LINK_QUAL_ANT_B_MSK (1<<1)
+#define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK)
+
+struct iwl_link_qual_general_params {
+ u8 flags;
+ u8 mimo_delimiter;
+ u8 single_stream_ant_msk;
+ u8 dual_stream_ant_msk;
+ u8 start_rate_index[LINK_QUAL_AC_NUM];
+} __attribute__ ((packed));
+
+struct iwl_link_qual_agg_params {
+ __le16 agg_time_limit;
+ u8 agg_dis_start_th;
+ u8 agg_frame_cnt_limit;
+ __le32 reserved;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response)
+ */
+struct iwl_link_quality_cmd {
+ u8 sta_id;
+ u8 reserved1;
+ __le16 control;
+ struct iwl_link_qual_general_params general_params;
+ struct iwl_link_qual_agg_params agg_params;
+ struct {
+ __le32 rate_n_flags;
+ } rs_table[LINK_QUAL_MAX_RETRY_NUM];
+ __le32 reserved2;
+} __attribute__ ((packed));
+#endif
+
+/*
+ * REPLY_BT_CONFIG = 0x9b (command, has simple generic response)
+ */
+struct iwl_bt_cmd {
+ u8 flags;
+ u8 lead_time;
+ u8 max_kill;
+ u8 reserved;
+ __le32 kill_ack_mask;
+ __le32 kill_cts_mask;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (6)
+ * Spectrum Management (802.11h) Commands, Responses, Notifications:
*
- * TX_STATUS_FIFO_UNDERRUN
+ *****************************************************************************/
+
+/*
+ * Spectrum Management
+ */
+#define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \
+ RXON_FILTER_CTL2HOST_MSK | \
+ RXON_FILTER_ACCEPT_GRP_MSK | \
+ RXON_FILTER_DIS_DECRYPT_MSK | \
+ RXON_FILTER_DIS_GRP_DECRYPT_MSK | \
+ RXON_FILTER_ASSOC_MSK | \
+ RXON_FILTER_BCON_AWARE_MSK)
+
+struct iwl_measure_channel {
+ __le32 duration; /* measurement duration in extended beacon
+ * format */
+ u8 channel; /* channel to measure */
+ u8 type; /* see enum iwl_measure_type */
+ __le16 reserved;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command)
+ */
+struct iwl_spectrum_cmd {
+ __le16 len; /* number of bytes starting from token */
+ u8 token; /* token id */
+ u8 id; /* measurement id -- 0 or 1 */
+ u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */
+ u8 periodic; /* 1 = periodic */
+ __le16 path_loss_timeout;
+ __le32 start_time; /* start time in extended beacon format */
+ __le32 reserved2;
+ __le32 flags; /* rxon flags */
+ __le32 filter_flags; /* rxon filter flags */
+ __le16 channel_count; /* minimum 1, maximum 10 */
+ __le16 reserved3;
+ struct iwl_measure_channel channels[10];
+} __attribute__ ((packed));
+
+/*
+ * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response)
+ */
+struct iwl_spectrum_resp {
+ u8 token;
+ u8 id; /* id of the prior command replaced, or 0xff */
+ __le16 status; /* 0 - command will be handled
+ * 1 - cannot handle (conflicts with another
+ * measurement) */
+} __attribute__ ((packed));
+
+enum iwl_measurement_state {
+ IWL_MEASUREMENT_START = 0,
+ IWL_MEASUREMENT_STOP = 1,
+};
+
+enum iwl_measurement_status {
+ IWL_MEASUREMENT_OK = 0,
+ IWL_MEASUREMENT_CONCURRENT = 1,
+ IWL_MEASUREMENT_CSA_CONFLICT = 2,
+ IWL_MEASUREMENT_TGH_CONFLICT = 3,
+ /* 4-5 reserved */
+ IWL_MEASUREMENT_STOPPED = 6,
+ IWL_MEASUREMENT_TIMEOUT = 7,
+ IWL_MEASUREMENT_PERIODIC_FAILED = 8,
+};
+
+#define NUM_ELEMENTS_IN_HISTOGRAM 8
+
+struct iwl_measurement_histogram {
+ __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */
+ __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */
+} __attribute__ ((packed));
+
+/* clear channel availability counters */
+struct iwl_measurement_cca_counters {
+ __le32 ofdm;
+ __le32 cck;
+} __attribute__ ((packed));
+
+enum iwl_measure_type {
+ IWL_MEASURE_BASIC = (1 << 0),
+ IWL_MEASURE_CHANNEL_LOAD = (1 << 1),
+ IWL_MEASURE_HISTOGRAM_RPI = (1 << 2),
+ IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
+ IWL_MEASURE_FRAME = (1 << 4),
+ /* bits 5:6 are reserved */
+ IWL_MEASURE_IDLE = (1 << 7),
+};
+
+/*
+ * SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command)
+ */
+struct iwl_spectrum_notification {
+ u8 id; /* measurement id -- 0 or 1 */
+ u8 token;
+ u8 channel_index; /* index in measurement channel list */
+ u8 state; /* 0 - start, 1 - stop */
+ __le32 start_time; /* lower 32-bits of TSF */
+ u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */
+ u8 channel;
+ u8 type; /* see enum iwl_measurement_type */
+ u8 reserved1;
+ /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only
+ * valid if applicable for measurement type requested. */
+ __le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */
+ __le32 cca_cck; /* cca fraction time in 44Mhz clock periods */
+ __le32 cca_time; /* channel load time in usecs */
+ u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 -
+ * unidentified */
+ u8 reserved2[3];
+ struct iwl_measurement_histogram histogram;
+ __le32 stop_time; /* lower 32-bits of TSF */
+ __le32 status; /* see iwl_measurement_status */
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (7)
+ * Power Management Commands, Responses, Notifications:
*
- * Indicates the host did not provide bytes to the FIFO fast enough while
- * a TX was in progress.
+ *****************************************************************************/
+
+/**
+ * struct iwl_powertable_cmd - Power Table Command
+ * @flags: See below:
*
- * TX_STATUS_FAIL_MGMNT_ABORT
+ * POWER_TABLE_CMD = 0x77 (command, has simple generic response)
*
- * This status is only possible if the ABORT ON MGMT RX parameter was
- * set to true with the TX command.
+ * PM allow:
+ * bit 0 - '0' Driver not allow power management
+ * '1' Driver allow PM (use rest of parameters)
+ * uCode send sleep notifications:
+ * bit 1 - '0' Don't send sleep notification
+ * '1' send sleep notification (SEND_PM_NOTIFICATION)
+ * Sleep over DTIM
+ * bit 2 - '0' PM have to walk up every DTIM
+ * '1' PM could sleep over DTIM till listen Interval.
+ * PCI power managed
+ * bit 3 - '0' (PCI_LINK_CTRL & 0x1)
+ * '1' !(PCI_LINK_CTRL & 0x1)
+ * Force sleep Modes
+ * bit 31/30- '00' use both mac/xtal sleeps
+ * '01' force Mac sleep
+ * '10' force xtal sleep
+ * '11' Illegal set
*
- * If the MSB of the status parameter is set then an abort sequence is
- * required. This sequence consists of the host activating the TX Abort
- * control line, and then waiting for the TX Abort command response. This
- * indicates that a the device is no longer in a transmit state, and that the
- * command FIFO has been cleared. The host must then deactivate the TX Abort
- * control line. Receiving is still allowed in this case.
+ * NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then
+ * ucode assume sleep over DTIM is allowed and we don't need to wakeup
+ * for every DTIM.
*/
+#define IWL_POWER_VEC_SIZE 5
-struct iwl_tx_power {
- u8 tx_gain; /* gain for analog radio */
- u8 dsp_atten; /* gain for DSP */
+
+#if IWL == 3945
+
+#define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK __constant_cpu_to_le32(1<<0)
+#define IWL_POWER_SLEEP_OVER_DTIM_MSK __constant_cpu_to_le32(1<<2)
+#define IWL_POWER_PCI_PM_MSK __constant_cpu_to_le32(1<<3)
+struct iwl_powertable_cmd {
+ __le32 flags;
+ __le32 rx_data_timeout;
+ __le32 tx_data_timeout;
+ __le32 sleep_interval[IWL_POWER_VEC_SIZE];
+} __attribute__((packed));
+
+#elif IWL == 4965
+
+#define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK __constant_cpu_to_le16(1<<0)
+#define IWL_POWER_SLEEP_OVER_DTIM_MSK __constant_cpu_to_le16(1<<2)
+#define IWL_POWER_PCI_PM_MSK __constant_cpu_to_le16(1<<3)
+
+struct iwl_powertable_cmd {
+ __le16 flags;
+ u8 keep_alive_seconds;
+ u8 debug_flags;
+ __le32 rx_data_timeout;
+ __le32 tx_data_timeout;
+ __le32 sleep_interval[IWL_POWER_VEC_SIZE];
+ __le32 keep_alive_beacons;
} __attribute__ ((packed));
+#endif
+
+/*
+ * PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command)
+ * 3945 and 4965 identical.
+ */
+struct iwl_sleep_notification {
+ u8 pm_sleep_mode;
+ u8 pm_wakeup_src;
+ __le16 reserved;
+ __le32 sleep_time;
+ __le32 tsf_low;
+ __le32 bcon_timer;
+} __attribute__ ((packed));
+
+/* Sleep states. 3945 and 4965 identical. */
+enum {
+ IWL_PM_NO_SLEEP = 0,
+ IWL_PM_SLP_MAC = 1,
+ IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
+ IWL_PM_SLP_FULL_MAC_CARD_STATE = 3,
+ IWL_PM_SLP_PHY = 4,
+ IWL_PM_SLP_REPENT = 5,
+ IWL_PM_WAKEUP_BY_TIMER = 6,
+ IWL_PM_WAKEUP_BY_DRIVER = 7,
+ IWL_PM_WAKEUP_BY_RFKILL = 8,
+ /* 3 reserved */
+ IWL_PM_NUM_OF_MODES = 12,
+};
+
+/*
+ * REPLY_CARD_STATE_CMD = 0xa0 (command, has simple generic response)
+ */
+#define CARD_STATE_CMD_DISABLE 0x00 /* Put card to sleep */
+#define CARD_STATE_CMD_ENABLE 0x01 /* Wake up card */
+#define CARD_STATE_CMD_HALT 0x02 /* Power down permanently */
+struct iwl_card_state_cmd {
+ __le32 status; /* CARD_STATE_CMD_* request new power state */
+} __attribute__ ((packed));
+
+/*
+ * CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command)
+ */
+struct iwl_card_state_notif {
+ __le32 flags;
+} __attribute__ ((packed));
+
+#define HW_CARD_DISABLED 0x01
+#define SW_CARD_DISABLED 0x02
+#define RF_CARD_DISABLED 0x04
+#define RXON_CARD_DISABLED 0x10
+
+struct iwl_ct_kill_config {
+ __le32 reserved;
+ __le32 critical_temperature_M;
+ __le32 critical_temperature_R;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (8)
+ * Scan Commands, Responses, Notifications:
+ *
+ *****************************************************************************/
struct iwl_scan_channel {
- u8 type;
/* type is defined as:
* 0:0 active (0 - passive)
* 1:4 SSID direct
* If 1 is set then corresponding SSID IE is transmitted in probe
- * 5:6 reserved
- * 7:7 Narrow
+ * 5:7 reserved
*/
+ u8 type;
u8 channel;
struct iwl_tx_power tpc;
__le16 active_dwell;
@@ -441,11 +1279,13 @@ struct iwl_ssid_ie {
} __attribute__ ((packed));
#define PROBE_OPTION_MAX 0x4
-#define TX_CMD_FLG_SEQ_CTL_MSK 0x2000
-#define TX_CMD_LIFE_TIME_INFINITE 0xFFFFFFFF
-#define IWL_GOOD_CRC_TH (1)
-
+#define TX_CMD_LIFE_TIME_INFINITE __constant_cpu_to_le32(0xFFFFFFFF)
+#define IWL_GOOD_CRC_TH __constant_cpu_to_le16(1)
#define IWL_MAX_SCAN_SIZE 1024
+
+/*
+ * REPLY_SCAN_CMD = 0x80 (command)
+ */
struct iwl_scan_cmd {
__le16 len;
u8 reserved0;
@@ -485,225 +1325,410 @@ struct iwl_scan_cmd {
*/
} __attribute__ ((packed));
+/* Can abort will notify by complete notification with abort status. */
+#define CAN_ABORT_STATUS __constant_cpu_to_le32(0x1)
+/* complete notification statuses */
+#define ABORT_STATUS 0x2
+
/*
- * RXON-ASSOCIATED Command & Response
+ * REPLY_SCAN_CMD = 0x80 (response)
*/
-struct iwl_rxon_assoc_cmd {
- __le32 flags;
- __le32 filter_flags;
- u8 ofdm_basic_rates;
- u8 cck_basic_rates;
-#if IWL == 4965
- u8 ofdm_ht_single_stream_basic_rates;
- u8 ofdm_ht_dual_stream_basic_rates;
- __le16 rx_chain_select_flags;
-#endif
- __le16 reserved;
+struct iwl_scanreq_notification {
+ __le32 status; /* 1: okay, 2: cannot fulfill request */
} __attribute__ ((packed));
/*
- * RXON Command & Response
+ * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command)
*/
-struct iwl_rxon_cmd {
- u8 node_addr[6];
- __le16 reserved1;
- u8 bssid_addr[6];
- __le16 reserved2;
- u8 wlap_bssid_addr[6];
- __le16 reserved3;
- u8 dev_type;
- u8 air_propagation;
-#if IWL == 3945
- __le16 reserved4;
-#elif IWL == 4965
- __le16 rx_chain;
-#endif
- u8 ofdm_basic_rates;
- u8 cck_basic_rates;
- __le16 assoc_id;
- __le32 flags;
- __le32 filter_flags;
- __le16 channel;
-#if IWL == 3945
- __le16 reserved5;
-#elif IWL == 4965
- u8 ofdm_ht_single_stream_basic_rates;
- u8 ofdm_ht_dual_stream_basic_rates;
-#endif
-} __attribute__ ((packed));
-
-struct iwl_compressed_ba_resp {
- __le32 sta_addr_lo32;
- __le16 sta_addr_hi16;
- __le16 reserved;
- u8 sta_id;
- u8 tid;
- __le16 ba_seq_ctl;
- __le32 ba_bitmap0;
- __le32 ba_bitmap1;
- __le16 scd_flow;
- __le16 scd_ssn;
+struct iwl_scanstart_notification {
+ __le32 tsf_low;
+ __le32 tsf_high;
+ __le32 beacon_timer;
+ u8 channel;
+ u8 band;
+ u8 reserved[2];
+ __le32 status;
} __attribute__ ((packed));
-#define PHY_CALIBRATE_DIFF_GAIN_CMD (7)
-#define HD_TABLE_SIZE (11)
+#define SCAN_OWNER_STATUS 0x1;
+#define MEASURE_OWNER_STATUS 0x2;
-struct iwl_sensitivity_cmd {
- __le16 control;
- __le16 table[HD_TABLE_SIZE];
+#define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */
+/*
+ * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command)
+ */
+struct iwl_scanresults_notification {
+ u8 channel;
+ u8 band;
+ u8 reserved[2];
+ __le32 tsf_low;
+ __le32 tsf_high;
+ __le32 statistics[NUMBER_OF_STATISTICS];
} __attribute__ ((packed));
-struct iwl_calibration_cmd {
- u8 opCode;
- u8 flags;
- __le16 reserved;
- s8 diff_gain_a;
- s8 diff_gain_b;
- s8 diff_gain_c;
- u8 reserved1;
+/*
+ * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command)
+ */
+struct iwl_scancomplete_notification {
+ u8 scanned_channels;
+ u8 status;
+ u8 reserved;
+ u8 last_channel;
+ __le32 tsf_low;
+ __le32 tsf_high;
} __attribute__ ((packed));
-struct iwl_missed_beacon_notif {
- __le32 consequtive_missed_beacons;
- __le32 total_missed_becons;
- __le32 num_expected_beacons;
- __le32 num_recvd_beacons;
+
+/******************************************************************************
+ * (9)
+ * IBSS/AP Commands and Notifications:
+ *
+ *****************************************************************************/
+
+/*
+ * BEACON_NOTIFICATION = 0x90 (notification only, not a command)
+ */
+struct iwl_beacon_notif {
+ struct iwl_tx_resp beacon_notify_hdr;
+ __le32 low_tsf;
+ __le32 high_tsf;
+ __le32 ibss_mgr_status;
} __attribute__ ((packed));
-struct iwl_ct_kill_config {
- u32 reserved;
- u32 critical_temperature_M;
- u32 critical_temperature_R;
-} __attribute__ ((packed));
/*
- * Add/Modify Station Command & Response
+ * REPLY_TX_BEACON = 0x91 (command, has simple generic response)
*/
-struct iwl_keyinfo {
- __le16 key_flags;
- u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
+struct iwl_tx_beacon_cmd {
+ struct iwl_tx_cmd tx;
+ __le16 tim_idx;
+ u8 tim_size;
u8 reserved1;
- __le16 tkip_rx_ttak[5]; /* 10-byte unicast TKIP TTAK */
- __le16 reserved2;
- u8 key[16]; /* 16-byte unicast decryption key */
+ struct ieee80211_hdr frame[0]; /* beacon frame */
} __attribute__ ((packed));
-struct sta_id_modify {
- u8 addr[ETH_ALEN];
- __le16 reserved1;
- u8 sta_id;
- u8 modify_mask;
- __le16 reserved2;
-} __attribute__ ((packed));
+/******************************************************************************
+ * (10)
+ * Statistics Commands and Notifications:
+ *
+ *****************************************************************************/
-struct iwl_addsta_cmd {
- u8 mode;
- u8 reserved[3];
- struct sta_id_modify sta;
- struct iwl_keyinfo key;
- __le32 station_flags;
- __le32 station_flags_msk;
- __le16 tid_disable_tx;
+#define IWL_TEMP_CONVERT 260
+
+#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
+#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
+#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
+
+/* Used for passing to driver number of successes and failures per rate */
+struct rate_histogram {
union {
- struct {
- u8 rate;
- u8 flags;
- } s;
- __le16 rate_n_flags;
- } tx_rate;
- u8 add_immediate_ba_tid;
- u8 remove_immediate_ba_tid;
- __le16 add_immediate_ba_start_seq;
+ __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
+ __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
+ __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
+ } success;
+ union {
+ __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
+ __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
+ __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
+ } failed;
+} __attribute__ ((packed));
+
+/* statistics command response */
+
+struct statistics_rx_phy {
+ __le32 ina_cnt;
+ __le32 fina_cnt;
+ __le32 plcp_err;
+ __le32 crc32_err;
+ __le32 overrun_err;
+ __le32 early_overrun_err;
+ __le32 crc32_good;
+ __le32 false_alarm_cnt;
+ __le32 fina_sync_err_cnt;
+ __le32 sfd_timeout;
+ __le32 fina_timeout;
+ __le32 unresponded_rts;
+ __le32 rxe_frame_limit_overrun;
+ __le32 sent_ack_cnt;
+ __le32 sent_cts_cnt;
+#if IWL == 4965
+ __le32 sent_ba_rsp_cnt;
+ __le32 dsp_self_kill;
+ __le32 mh_format_err;
+ __le32 re_acq_main_rssi_sum;
+ __le32 reserved3;
+#endif
+} __attribute__ ((packed));
+
+#if IWL == 4965
+struct statistics_rx_ht_phy {
+ __le32 plcp_err;
+ __le32 overrun_err;
+ __le32 early_overrun_err;
+ __le32 crc32_good;
+ __le32 crc32_err;
+ __le32 mh_format_err;
+ __le32 agg_crc32_good;
+ __le32 agg_mpdu_cnt;
+ __le32 agg_cnt;
+ __le32 reserved2;
+} __attribute__ ((packed));
+#endif
+
+struct statistics_rx_non_phy {
+ __le32 bogus_cts; /* CTS received when not expecting CTS */
+ __le32 bogus_ack; /* ACK received when not expecting ACK */
+ __le32 non_bssid_frames; /* number of frames with BSSID that
+ * doesn't belong to the STA BSSID */
+ __le32 filtered_frames; /* count frames that were dumped in the
+ * filtering process */
+ __le32 non_channel_beacons; /* beacons with our bss id but not on
+ * our serving channel */
+#if IWL == 4965
+ __le32 channel_beacons; /* beacons with our bss id and in our
+ * serving channel */
+ __le32 num_missed_bcon; /* number of missed beacons */
+ __le32 adc_rx_saturation_time; /* count in 0.8us units the time the
+ * ADC was in saturation */
+ __le32 ina_detection_search_time;/* total time (in 0.8us) searched
+ * for INA */
+ __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */
+ __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */
+ __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */
+ __le32 interference_data_flag; /* flag for interference data
+ * availability. 1 when data is
+ * available. */
+ __le32 channel_load; /* counts RX Enable time */
+ __le32 dsp_false_alarms; /* DSP false alarm (both OFDM
+ * and CCK) counter */
+ __le32 beacon_rssi_a;
+ __le32 beacon_rssi_b;
+ __le32 beacon_rssi_c;
+ __le32 beacon_energy_a;
+ __le32 beacon_energy_b;
+ __le32 beacon_energy_c;
+#endif
+} __attribute__ ((packed));
+
+struct statistics_rx {
+ struct statistics_rx_phy ofdm;
+ struct statistics_rx_phy cck;
+ struct statistics_rx_non_phy general;
+#if IWL == 4965
+ struct statistics_rx_ht_phy ofdm_ht;
+#endif
+} __attribute__ ((packed));
+
+#if IWL == 4965
+struct statistics_tx_non_phy_agg {
+ __le32 ba_timeout;
+ __le32 ba_reschedule_frames;
+ __le32 scd_query_agg_frame_cnt;
+ __le32 scd_query_no_agg;
+ __le32 scd_query_agg;
+ __le32 scd_query_mismatch;
+ __le32 frame_not_ready;
+ __le32 underrun;
+ __le32 bt_prio_kill;
+ __le32 rx_ba_rsp_cnt;
+ __le32 reserved2;
+ __le32 reserved3;
+} __attribute__ ((packed));
+#endif
+
+struct statistics_tx {
+ __le32 preamble_cnt;
+ __le32 rx_detected_cnt;
+ __le32 bt_prio_defer_cnt;
+ __le32 bt_prio_kill_cnt;
+ __le32 few_bytes_cnt;
+ __le32 cts_timeout;
+ __le32 ack_timeout;
+ __le32 expected_ack_cnt;
+ __le32 actual_ack_cnt;
+#if IWL == 4965
+ __le32 dump_msdu_cnt;
+ __le32 burst_abort_next_frame_mismatch_cnt;
+ __le32 burst_abort_missing_next_frame_cnt;
+ __le32 cts_timeout_collision;
+ __le32 ack_or_ba_timeout_collision;
+ struct statistics_tx_non_phy_agg agg;
+#endif
+} __attribute__ ((packed));
+
+struct statistics_dbg {
+ __le32 burst_check;
+ __le32 burst_count;
+ __le32 reserved[4];
+} __attribute__ ((packed));
+
+struct statistics_div {
+ __le32 tx_on_a;
+ __le32 tx_on_b;
+ __le32 exec_time;
+ __le32 probe_time;
#if IWL == 4965
__le32 reserved1;
+ __le32 reserved2;
#endif
} __attribute__ ((packed));
-struct iwl_add_sta_resp {
- u8 status;
+struct statistics_general {
+ __le32 temperature;
+#if IWL == 4965
+ __le32 temperature_m;
+#endif
+ struct statistics_dbg dbg;
+ __le32 sleep_time;
+ __le32 slots_out;
+ __le32 slots_idle;
+ __le32 ttl_timestamp;
+ struct statistics_div div;
+#if IWL == 4965
+ __le32 rx_enable_counter;
+ __le32 reserved1;
+ __le32 reserved2;
+ __le32 reserved3;
+#endif
} __attribute__ ((packed));
-#define ADD_STA_SUCCESS_MSK 0x1
+/*
+ * REPLY_STATISTICS_CMD = 0x9c,
+ * 3945 and 4965 identical.
+ *
+ * This command triggers an immediate response containing uCode statistics.
+ * The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below.
+ *
+ * If the CLEAR_STATS configuration flag is set, uCode will clear its
+ * internal copy of the statistics (counters) after issuing the response.
+ * This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below).
+ *
+ * If the DISABLE_NOTIF configuration flag is set, uCode will not issue
+ * STATISTICS_NOTIFICATIONs after received beacons (see below). This flag
+ * does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself.
+ */
+#define IWL_STATS_CONF_CLEAR_STATS __constant_cpu_to_le32(0x1) /* see above */
+#define IWL_STATS_CONF_DISABLE_NOTIF __constant_cpu_to_le32(0x2)/* see above */
+struct iwl_statistics_cmd {
+ __le32 configuration_flags; /* IWL_STATS_CONF_* */
+} __attribute__ ((packed));
-/**
- * struct iwl_powertable_cmd - Power Table Command & Response
- * @flags: See below:
+/*
+ * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command)
*
- * PM allow:
- * bit 0 - '0' Driver not allow power management
- * '1' Driver allow PM (use rest of parameters)
- * uCode send sleep notifications:
- * bit 1 - '0' Don't send sleep notification
- * '1' send sleep notification (SEND_PM_NOTIFICATION)
- * Sleep over DTIM
- * bit 2 - '0' PM have to walk up every DTIM
- * '1' PM could sleep over DTIM till listen Interval.
- * PCI power managed
- * bit 3 - '0' (PCI_LINK_CTRL & 0x1)
- * '1' !(PCI_LINK_CTRL & 0x1)
- * Force sleep Modes
- * bit 31/30- '00' use both mac/xtal sleeps
- * '01' force Mac sleep
- * '10' force xtal sleep
- * '11' Illegal set
+ * By default, uCode issues this notification after receiving a beacon
+ * while associated. To disable this behavior, set DISABLE_NOTIF flag in the
+ * REPLY_STATISTICS_CMD 0x9c, above.
*
- * NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then
- * ucode assume sleep over DTIM is allowed and we don't need to wakeup
- * for every DTIM.
+ * Statistics counters continue to increment beacon after beacon, but are
+ * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD
+ * 0x9c with CLEAR_STATS bit set (see above).
+ *
+ * uCode also issues this notification during scans. uCode clears statistics
+ * appropriately so that each notification contains statistics for only the
+ * one channel that has just been scanned.
*/
-#define IWL_POWER_TABLE_SIZE 5
+#define STATISTICS_REPLY_FLG_BAND_24G_MSK __constant_cpu_to_le32(0x2)
+#define STATISTICS_REPLY_FLG_FAT_MODE_MSK __constant_cpu_to_le32(0x8)
+struct iwl_notif_statistics {
+ __le32 flag;
+ struct statistics_rx rx;
+ struct statistics_tx tx;
+ struct statistics_general general;
+} __attribute__ ((packed));
-enum {
- IWL_POWER_DRIVER_ALLOW_SLEEP_MSK = (1<<0),
- IWL_POWER_SLEEP_OVER_DTIM_MSK = (1<<2),
- IWL_POWER_PCI_PM_MSK = (1<<3),
-};
-struct iwl_powertable_cmd {
-#if IWL == 3945
- __le32 flags;
-#elif IWL == 4965
- __le16 flags;
- u8 keep_alive_seconds;
- u8 debug_flags;
-#endif
- __le32 rx_data_timeout;
- __le32 tx_data_timeout;
- __le32 sleep_interval[IWL_POWER_TABLE_SIZE];
-#if IWL == 4965
- __le32 keep_alive_beacons;
-#endif
+/*
+ * MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command)
+ */
+/* if ucode missed CONSECUTIVE_MISSED_BCONS_TH beacons in a row,
+ * then this notification will be sent. */
+#define CONSECUTIVE_MISSED_BCONS_TH 20
+
+struct iwl_missed_beacon_notif {
+ __le32 consequtive_missed_beacons;
+ __le32 total_missed_becons;
+ __le32 num_expected_beacons;
+ __le32 num_recvd_beacons;
} __attribute__ ((packed));
+/******************************************************************************
+ * (11)
+ * Rx Calibration Commands:
+ *
+ *****************************************************************************/
-struct iwl_rate_scaling_info {
- union {
- struct {
- u8 tx_rate;
- u8 flags;
- } s;
- __le16 rate_n_flags;
- };
- u8 try_cnt;
- u8 next_rate_index;
+#define PHY_CALIBRATE_DIFF_GAIN_CMD (7)
+#define HD_TABLE_SIZE (11)
+
+struct iwl_sensitivity_cmd {
+ __le16 control;
+ __le16 table[HD_TABLE_SIZE];
} __attribute__ ((packed));
-/**
- * struct iwl_rate_scaling_cmd - Rate Scaling Command & Response
+struct iwl_calibration_cmd {
+ u8 opCode;
+ u8 flags;
+ __le16 reserved;
+ s8 diff_gain_a;
+ s8 diff_gain_b;
+ s8 diff_gain_c;
+ u8 reserved1;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (12)
+ * Miscellaneous Commands:
*
- * NOTE: The table of rates passed to the uCode via the
- * RATE_SCALE command sets up the corresponding order of
- * rates used for all related commands, including rate
- * masks, etc.
+ *****************************************************************************/
+
+/*
+ * LEDs Command & Response
+ * REPLY_LEDS_CMD = 0x48 (command, has simple generic response)
*
- * For example, if you set 9MB (PLCP 0x0f) as the first
- * rate in the rate table, the bit mask for that rate
- * when passed through ofdm_basic_rates on the REPLY_RXON
- * command would be bit 0 (1<<0)
+ * For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field),
+ * this command turns it on or off, or sets up a periodic blinking cycle.
*/
-struct iwl_rate_scaling_cmd {
- u8 table_id;
- u8 reserved[3];
- struct iwl_rate_scaling_info table[IWL_MAX_RATES];
+struct iwl_led_cmd {
+ __le32 interval; /* "interval" in uSec */
+ u8 id; /* 1: Activity, 2: Link, 3: Tech */
+ u8 off; /* # intervals off while blinking;
+ * "0", with >0 "on" value, turns LED on */
+ u8 on; /* # intervals on while blinking;
+ * "0", regardless of "off", turns LED off */
+ u8 reserved;
+} __attribute__ ((packed));
+
+/******************************************************************************
+ * (13)
+ * Union of all expected notifications/responses:
+ *
+ *****************************************************************************/
+
+struct iwl_rx_packet {
+ __le32 len;
+ struct iwl_cmd_header hdr;
+ union {
+ struct iwl_alive_resp alive_frame;
+ struct iwl_rx_frame rx_frame;
+ struct iwl_tx_resp tx_resp;
+ struct iwl_spectrum_notification spectrum_notif;
+ struct iwl_csa_notification csa_notif;
+ struct iwl_error_resp err_resp;
+ struct iwl_card_state_notif card_state_notif;
+ struct iwl_beacon_notif beacon_status;
+ struct iwl_add_sta_resp add_sta;
+ struct iwl_sleep_notification sleep_notif;
+ struct iwl_spectrum_resp spectrum;
+ struct iwl_notif_statistics stats;
+#if IWL == 4965
+ struct iwl_compressed_ba_resp compressed_ba;
+ struct iwl_missed_beacon_notif missed_beacon;
+#endif
+ __le32 status;
+ u8 raw[0];
+ } u;
} __attribute__ ((packed));
+#define IWL_RX_FRAME_SIZE (4 + sizeof(struct iwl_rx_frame))
+
#endif /* __iwl_commands_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 19ea474..abd344c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -35,10 +35,18 @@ extern u32 iwl_debug_level;
do { if (iwl_debug_level & (level)) \
printk(KERN_ERR DRV_NAME": %c %s " fmt, \
in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
+
+#define IWL_DEBUG_LIMIT(level, fmt, args...) \
+do { if ((iwl_debug_level & (level)) && net_ratelimit()) \
+ printk(KERN_ERR DRV_NAME": %c %s " fmt, \
+ in_interrupt() ? 'I' : 'U', __FUNCTION__ , ## args); } while (0)
#else
static inline void IWL_DEBUG(int level, const char *fmt, ...)
{
}
+static inline void IWL_DEBUG_LIMIT(int level, const char *fmt, ...)
+{
+}
#endif /* CONFIG_IWLWIFI_DEBUG */
/*
@@ -58,11 +66,11 @@ static inline void IWL_DEBUG(int level, const char *fmt, ...)
*
* To add your debug level to the list of levels seen when you perform
*
- * % cat /proc/net/ipw/debug_level
+ * % cat /proc/net/iwl/debug_level
*
* you simply need to add your entry to the iwl_debug_levels array.
*
- * If you do not see debug_level in /proc/net/ipw then you do not have
+ * If you do not see debug_level in /proc/net/iwl then you do not have
* CONFIG_IWLWIFI_DEBUG defined in your kernel configuration
*
*/
@@ -123,6 +131,7 @@ static inline void IWL_DEBUG(int level, const char *fmt, ...)
#define IWL_DEBUG_FW(f, a...) IWL_DEBUG(IWL_DL_FW, f, ## a)
#define IWL_DEBUG_RF_KILL(f, a...) IWL_DEBUG(IWL_DL_RF_KILL, f, ## a)
#define IWL_DEBUG_DROP(f, a...) IWL_DEBUG(IWL_DL_DROP, f, ## a)
+#define IWL_DEBUG_DROP_LIMIT(f, a...) IWL_DEBUG_LIMIT(IWL_DL_DROP, f, ## a)
#define IWL_DEBUG_AP(f, a...) IWL_DEBUG(IWL_DL_AP, f, ## a)
#define IWL_DEBUG_TXPOWER(f, a...) IWL_DEBUG(IWL_DL_TXPOWER, f, ## a)
#define IWL_DEBUG_IO(f, a...) IWL_DEBUG(IWL_DL_IO, f, ## a)
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.h b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
index 19d7028..e473c97 100644
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.h
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.h
@@ -69,6 +69,8 @@
*
*/
+#define IWL_EEPROM_ACCESS_TIMEOUT 5000 /* uSec */
+#define IWL_EEPROM_ACCESS_DELAY 10 /* uSec */
/* EEPROM field values */
#define ANTENNA_SWITCH_NORMAL 0
#define ANTENNA_SWITCH_INVERSE 1
@@ -142,7 +144,7 @@ struct iwl_eeprom_channel {
struct iwl_eeprom_txpower_sample {
u8 gain_index; /* index into power (gain) setup table ... */
s8 power; /* ... for this pwr level for this chnl group */
- __le16 v_det; /* PA output voltage */
+ u16 v_det; /* PA output voltage */
} __attribute__ ((packed));
/*
@@ -155,14 +157,14 @@ struct iwl_eeprom_txpower_sample {
*/
struct iwl_eeprom_txpower_group {
struct iwl_eeprom_txpower_sample samples[5]; /* 5 power levels */
- __le32 a, b, c, d, e; /* coefficients for voltage->power
+ s32 a, b, c, d, e; /* coefficients for voltage->power
* formula (signed) */
- __le32 Fa, Fb, Fc, Fd, Fe; /* these modify coeffs based on
+ s32 Fa, Fb, Fc, Fd, Fe; /* these modify coeffs based on
* frequency (signed) */
s8 saturation_power; /* highest power possible by h/w in this
* band */
u8 group_channel; /* "representative" channel # in this band */
- __le16 temperature; /* h/w temperature at factory calib this band
+ s16 temperature; /* h/w temperature at factory calib this band
* (signed) */
} __attribute__ ((packed));
@@ -173,11 +175,11 @@ struct iwl_eeprom_txpower_group {
* Data copied from EEPROM.
*/
struct iwl_eeprom_temperature_corr {
- __le32 Ta;
- __le32 Tb;
- __le32 Tc;
- __le32 Td;
- __le32 Te;
+ u32 Ta;
+ u32 Tb;
+ u32 Tc;
+ u32 Td;
+ u32 Te;
} __attribute__ ((packed));
#if IWL == 4965
@@ -187,32 +189,31 @@ struct iwl_eeprom_temperature_corr {
#define EEPROM_TX_POWER_VERSION (2)
#define EEPROM_TX_POWER_VERSION_NEW (5)
-struct iwl_eeprom_calib_measurement {
+struct iwl_eeprom_calib_measure {
u8 temperature;
u8 gain_idx;
u8 actual_pow;
s8 pa_det;
} __attribute__ ((packed));
-struct iwl_eeprom_calib_channel_info {
+struct iwl_eeprom_calib_ch_info {
u8 ch_num;
- struct iwl_eeprom_calib_measurement
- measurements[EEPROM_TX_POWER_TX_CHAINS][EEPROM_TX_POWER_MEASUREMENTS];
+ struct iwl_eeprom_calib_measure measurements[EEPROM_TX_POWER_TX_CHAINS]
+ [EEPROM_TX_POWER_MEASUREMENTS];
} __attribute__ ((packed));
struct iwl_eeprom_calib_subband_info {
u8 ch_from;
u8 ch_to;
- struct iwl_eeprom_calib_channel_info ch1;
- struct iwl_eeprom_calib_channel_info ch2;
+ struct iwl_eeprom_calib_ch_info ch1;
+ struct iwl_eeprom_calib_ch_info ch2;
} __attribute__ ((packed));
struct iwl_eeprom_calib_info {
u8 saturation_power24;
u8 saturation_power52;
- __le16 voltage; /* signed */
- struct iwl_eeprom_calib_subband_info
- band_info_tbl[EEPROM_TX_POWER_BANDS];
+ s16 voltage; /* signed */
+ struct iwl_eeprom_calib_subband_info band_info[EEPROM_TX_POWER_BANDS];
} __attribute__ ((packed));
#endif
@@ -220,32 +221,32 @@ struct iwl_eeprom_calib_info {
struct iwl_eeprom {
u8 reserved0[16];
#define EEPROM_DEVICE_ID (2*0x08) /* 2 bytes */
- __le16 device_id; /* abs.ofs: 16 */
+ u16 device_id; /* abs.ofs: 16 */
u8 reserved1[2];
#define EEPROM_PMC (2*0x0A) /* 2 bytes */
- __le16 pmc; /* abs.ofs: 20 */
+ u16 pmc; /* abs.ofs: 20 */
u8 reserved2[20];
#define EEPROM_MAC_ADDRESS (2*0x15) /* 6 bytes */
u8 mac_address[6]; /* abs.ofs: 42 */
u8 reserved3[58];
#define EEPROM_BOARD_REVISION (2*0x35) /* 2 bytes */
- __le16 board_revision; /* abs.ofs: 106 */
+ u16 board_revision; /* abs.ofs: 106 */
u8 reserved4[11];
#define EEPROM_BOARD_PBA_NUMBER (2*0x3B+1) /* 9 bytes */
u8 board_pba_number[9]; /* abs.ofs: 119 */
u8 reserved5[8];
#define EEPROM_VERSION (2*0x44) /* 2 bytes */
- __le16 version; /* abs.ofs: 136 */
+ u16 version; /* abs.ofs: 136 */
#define EEPROM_SKU_CAP (2*0x45) /* 1 bytes */
u8 sku_cap; /* abs.ofs: 138 */
#define EEPROM_LEDS_MODE (2*0x45+1) /* 1 bytes */
u8 leds_mode; /* abs.ofs: 139 */
#define EEPROM_OEM_MODE (2*0x46) /* 2 bytes */
- __le16 oem_mode;
+ u16 oem_mode;
#define EEPROM_WOWLAN_MODE (2*0x47) /* 2 bytes */
- __le16 wowlan_mode; /* abs.ofs: 142 */
+ u16 wowlan_mode; /* abs.ofs: 142 */
#define EEPROM_LEDS_TIME_INTERVAL (2*0x48) /* 2 bytes */
- __le16 leds_time_interval; /* abs.ofs: 144 */
+ u16 leds_time_interval; /* abs.ofs: 144 */
#define EEPROM_LEDS_OFF_TIME (2*0x49) /* 1 bytes */
u8 leds_off_time; /* abs.ofs: 146 */
#define EEPROM_LEDS_ON_TIME (2*0x49+1) /* 1 bytes */
@@ -259,7 +260,7 @@ struct iwl_eeprom {
#else
u8 reserved6[8];
#define EEPROM_4965_BOARD_REVISION (2*0x4F) /* 2 bytes */
- __le16 board_revision_4965; /* abs.ofs: 158 */
+ u16 board_revision_4965; /* abs.ofs: 158 */
u8 reserved7[13];
#define EEPROM_4965_BOARD_PBA (2*0x56+1) /* 9 bytes */
u8 board_pba_number_4965[9]; /* abs.ofs: 173 */
@@ -268,23 +269,23 @@ struct iwl_eeprom {
#define EEPROM_REGULATORY_SKU_ID (2*0x60) /* 4 bytes */
u8 sku_id[4]; /* abs.ofs: 192 */
#define EEPROM_REGULATORY_BAND_1 (2*0x62) /* 2 bytes */
- __le16 band_1_count; /* abs.ofs: 196 */
+ u16 band_1_count; /* abs.ofs: 196 */
#define EEPROM_REGULATORY_BAND_1_CHANNELS (2*0x63) /* 28 bytes */
struct iwl_eeprom_channel band_1_channels[14]; /* abs.ofs: 196 */
#define EEPROM_REGULATORY_BAND_2 (2*0x71) /* 2 bytes */
- __le16 band_2_count; /* abs.ofs: 226 */
+ u16 band_2_count; /* abs.ofs: 226 */
#define EEPROM_REGULATORY_BAND_2_CHANNELS (2*0x72) /* 26 bytes */
struct iwl_eeprom_channel band_2_channels[13]; /* abs.ofs: 228 */
#define EEPROM_REGULATORY_BAND_3 (2*0x7F) /* 2 bytes */
- __le16 band_3_count; /* abs.ofs: 254 */
+ u16 band_3_count; /* abs.ofs: 254 */
#define EEPROM_REGULATORY_BAND_3_CHANNELS (2*0x80) /* 24 bytes */
struct iwl_eeprom_channel band_3_channels[12]; /* abs.ofs: 256 */
#define EEPROM_REGULATORY_BAND_4 (2*0x8C) /* 2 bytes */
- __le16 band_4_count; /* abs.ofs: 280 */
+ u16 band_4_count; /* abs.ofs: 280 */
#define EEPROM_REGULATORY_BAND_4_CHANNELS (2*0x8D) /* 22 bytes */
struct iwl_eeprom_channel band_4_channels[11]; /* abs.ofs: 282 */
#define EEPROM_REGULATORY_BAND_5 (2*0x98) /* 2 bytes */
- __le16 band_5_count; /* abs.ofs: 304 */
+ u16 band_5_count; /* abs.ofs: 304 */
#define EEPROM_REGULATORY_BAND_5_CHANNELS (2*0x99) /* 12 bytes */
struct iwl_eeprom_channel band_5_channels[6]; /* abs.ofs: 306 */
@@ -316,10 +317,10 @@ struct iwl_eeprom {
struct iwl_eeprom_channel band_52_channels[11]; /* abs.ofs: 336 */
u8 reserved12[6];
#define EEPROM_CALIB_VERSION_OFFSET (2*0xB6) /* 2 bytes */
- __le16 calib_version; /* abs.ofs: 364 */
+ u16 calib_version; /* abs.ofs: 364 */
u8 reserved13[2];
#define EEPROM_SATURATION_POWER_OFFSET (2*0xB8) /* 2 bytes */
- __le16 satruation_power; /* abs.ofs: 368 */
+ u16 satruation_power; /* abs.ofs: 368 */
u8 reserved14[94];
#define EEPROM_IWL_CALIB_TXPOWER_OFFSET (2*0xE8) /* 48 bytes */
struct iwl_eeprom_calib_info calib_info; /* abs.ofs: 464 */
diff --git a/drivers/net/wireless/iwlwifi/iwl-helpers.h b/drivers/net/wireless/iwlwifi/iwl-helpers.h
index c29a568..e2a8d95 100644
--- a/drivers/net/wireless/iwlwifi/iwl-helpers.h
+++ b/drivers/net/wireless/iwlwifi/iwl-helpers.h
@@ -30,6 +30,8 @@
#ifndef __iwl_helpers_h__
#define __iwl_helpers_h__
+#include <linux/ctype.h>
+
/*
* The structures defined by the hardware/uCode interface
* have bit-wise operations. For each bit-field there is
@@ -57,13 +59,14 @@
* NOTE: If used from IWL_GET_BITS then pos and len are compile-constants and
* will collapse to minimal code by the compiler.
*/
-#define iwl_get_bits(src, pos, len) \
-({ \
- u32 __tmp = le32_to_cpu(src); \
- __tmp >>= pos; \
- __tmp &= (1UL << len) - 1; \
- __tmp; \
-})
+static inline u32 iwl_get_bits(__le32 src, u8 pos, u8 len)
+{
+ u32 tmp = le32_to_cpu(src);
+
+ tmp >>= pos;
+ tmp &= (1UL << len) - 1;
+ return tmp;
+}
/**
* iwl_set_bits - Set a hardware bit-field value
@@ -78,13 +81,23 @@
* NOTE: If used IWL_SET_BITS pos and len will be compile-constants and
* will collapse to minimal code by the compiler.
*/
-#define iwl_set_bits(dst, pos, len, val) \
-({ \
- u32 __tmp = le32_to_cpu(*dst); \
- __tmp &= ~((1ULL << (pos+len)) - (1 << pos)); \
- __tmp |= (val & ((1UL << len) - 1)) << pos; \
- *dst = cpu_to_le32(__tmp); \
-})
+static inline void iwl_set_bits(__le32 *dst, u8 pos, u8 len, int val)
+{
+ u32 tmp = le32_to_cpu(*dst);
+
+ tmp &= ~(((1UL << len) - 1) << pos);
+ tmp |= (val & ((1UL << len) - 1)) << pos;
+ *dst = cpu_to_le32(tmp);
+}
+
+static inline void iwl_set_bits16(__le16 *dst, u8 pos, u8 len, int val)
+{
+ u16 tmp = le16_to_cpu(*dst);
+
+ tmp &= ~((1UL << (pos + len)) - (1UL << pos));
+ tmp |= (val & ((1UL << len) - 1)) << pos;
+ *dst = cpu_to_le16(tmp);
+}
/*
* The bit-field definitions in iwl-xxxx-hw.h are in the form of:
@@ -108,46 +121,18 @@
* and iwl_{get,set}_bits.
*
*/
-#define _IWL_SET_BITS(s, d, o, l, v) \
- iwl_set_bits(&s.d, o, l, v)
-
#define IWL_SET_BITS(s, sym, v) \
- _IWL_SET_BITS((s), IWL_ ## sym ## _SYM, IWL_ ## sym ## _POS, \
- IWL_ ## sym ## _LEN, (v))
+ iwl_set_bits(&(s).IWL_ ## sym ## _SYM, IWL_ ## sym ## _POS, \
+ IWL_ ## sym ## _LEN, (v))
-#define _IWL_GET_BITS(s, v, o, l) \
- iwl_get_bits(s.v, o, l)
+#define IWL_SET_BITS16(s, sym, v) \
+ iwl_set_bits16(&(s).IWL_ ## sym ## _SYM, IWL_ ## sym ## _POS, \
+ IWL_ ## sym ## _LEN, (v))
#define IWL_GET_BITS(s, sym) \
- _IWL_GET_BITS((s), IWL_ ## sym ## _SYM, IWL_ ## sym ## _POS, \
+ iwl_get_bits((s).IWL_ ## sym ## _SYM, IWL_ ## sym ## _POS, \
IWL_ ## sym ## _LEN)
-/*
- * make C=2 CF=-Wall will complain if you use ARRAY_SIZE on global data
- */
-#define GLOBAL_ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-
-/* Debug and printf string expansion helpers for printing bitfields */
-#define BIT_FMT8 "%c%c%c%c-%c%c%c%c"
-#define BIT_FMT16 BIT_FMT8 ":" BIT_FMT8
-#define BIT_FMT32 BIT_FMT16 " " BIT_FMT16
-
-#define BITC(x, y) (((x>>y) & 1) ? '1' : '0')
-#define BIT_ARG8(x) \
-BITC(x, 7), BITC(x, 6), BITC(x, 5), BITC(x, 4), \
-BITC(x, 3), BITC(x, 2), BITC(x, 1), BITC(x, 0)
-
-#define BIT_ARG16(x) \
-BITC(x, 15), BITC(x, 14), BITC(x, 13), BITC(x, 12), \
-BITC(x, 11), BITC(x, 10), BITC(x, 9), BITC(x, 8), \
-BIT_ARG8(x)
-
-#define BIT_ARG32(x) \
-BITC(x, 31), BITC(x, 30), BITC(x, 29), BITC(x, 28), \
-BITC(x, 27), BITC(x, 26), BITC(x, 25), BITC(x, 24), \
-BITC(x, 23), BITC(x, 22), BITC(x, 21), BITC(x, 20), \
-BITC(x, 19), BITC(x, 18), BITC(x, 17), BITC(x, 16), \
-BIT_ARG16(x)
#define KELVIN_TO_CELSIUS(x) ((x)-273)
#define CELSIUS_TO_KELVIN(x) ((x)+273)
@@ -160,138 +145,102 @@ static inline struct ieee80211_conf *ieee80211_get_hw_conf(
return &hw->conf;
}
-static inline const struct ieee80211_hw_mode *iwl_get_hw_mode(
- struct iwl_priv *priv, int mode)
-{
- int i;
-
- for (i = 0; i < 3; i++)
- if (priv->modes[i].mode == mode)
- return &priv->modes[i];
-
- return NULL;
-}
-
-#define WLAN_FC_GET_TYPE(fc) (((fc) & IEEE80211_FCTL_FTYPE))
-#define WLAN_FC_GET_STYPE(fc) (((fc) & IEEE80211_FCTL_STYPE))
-#define WLAN_GET_SEQ_FRAG(seq) ((seq) & 0x000f)
-#define WLAN_GET_SEQ_SEQ(seq) ((seq) >> 4)
-
#define QOS_CONTROL_LEN 2
-static inline __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr)
-{
- u16 fc = le16_to_cpu(hdr->frame_control);
- int hdr_len = ieee80211_get_hdrlen(fc);
- if ( (fc & 0x00cc) == (IEEE80211_STYPE_QOS_DATA|IEEE80211_FTYPE_DATA))
- return (u16 *) ((u8 *) hdr + hdr_len - QOS_CONTROL_LEN);
- return NULL;
-}
-
#define IEEE80211_STYPE_BACK_REQ 0x0080
#define IEEE80211_STYPE_BACK 0x0090
-#define ieee80211_is_back_request(fc) \
- ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_CTL) && \
- (WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_BACK_REQ))
-#define ieee80211_is_probe_response(fc) \
- ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) && \
- ( WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_PROBE_RESP ))
-
-#define ieee80211_is_probe_request(fc) \
- ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) && \
- ( WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_PROBE_REQ ))
+static inline int ieee80211_is_management(u16 fc)
+{
+ return (fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT;
+}
-#define ieee80211_is_beacon(fc) \
- ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) && \
- ( WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_BEACON ))
+static inline int ieee80211_is_control(u16 fc)
+{
+ return (fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL;
+}
-#define ieee80211_is_atim(fc) \
- ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) && \
- ( WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_ATIM ))
+static inline int ieee80211_is_data(u16 fc)
+{
+ return (fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA;
+}
-#define ieee80211_is_management(fc) \
- (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT)
+static inline int ieee80211_is_back_request(u16 fc)
+{
+ return ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BACK_REQ);
+}
-#define ieee80211_is_control(fc) \
- (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_CTL)
+static inline int ieee80211_is_probe_response(u16 fc)
+{
+ return ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP);
+}
-#define ieee80211_is_data(fc) \
- (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA)
+static inline int ieee80211_is_probe_request(u16 fc)
+{
+ return ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_REQ);
+}
-#define ieee80211_is_assoc_request(fc) \
- ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) && \
- (WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_ASSOC_REQ))
+static inline int ieee80211_is_beacon(u16 fc)
+{
+ return ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON);
+}
-#define ieee80211_is_assoc_response(fc) \
- ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) && \
- (WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_ASSOC_RESP))
+static inline int ieee80211_is_atim(u16 fc)
+{
+ return ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ATIM);
+}
-#define ieee80211_is_auth(fc) \
- ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) && \
- (WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_ASSOC_REQ))
+static inline int ieee80211_is_assoc_request(u16 fc)
+{
+ return ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ);
+}
-#define ieee80211_is_deauth(fc) \
- ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) && \
- (WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_ASSOC_REQ))
+static inline int ieee80211_is_assoc_response(u16 fc)
+{
+ return ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_RESP);
+}
-#define ieee80211_is_disassoc(fc) \
- ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) && \
- (WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_ASSOC_REQ))
+static inline int ieee80211_is_auth(u16 fc)
+{
+ return ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ);
+}
-#define ieee80211_is_reassoc_request(fc) \
- ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) && \
- (WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_REASSOC_REQ))
+static inline int ieee80211_is_deauth(u16 fc)
+{
+ return ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ);
+}
-#define ieee80211_is_reassoc_response(fc) \
- ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT) && \
- (WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_REASSOC_RESP))
+static inline int ieee80211_is_disassoc(u16 fc)
+{
+ return ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ);
+}
-static inline int iwl_is_empty_essid(const char *essid, int essid_len)
+static inline int ieee80211_is_reassoc_request(u16 fc)
{
- /* Single white space is for Linksys APs */
- if (essid_len == 1 && essid[0] == ' ')
- return 1;
-
- /* Otherwise, if the entire essid is 0, we assume it is hidden */
- while (essid_len) {
- essid_len--;
- if (essid[essid_len] != '\0')
- return 0;
- }
-
- return 1;
+ return ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ);
}
-static inline int iwl_check_bits(unsigned long field, unsigned long mask)
+static inline int ieee80211_is_reassoc_response(u16 fc)
{
- return ((field & mask) == mask) ? 1 : 0;
+ return ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
+ ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_RESP);
}
-static inline const char *iwl_escape_essid(const char *essid, u8 essid_len)
+static inline int iwl_check_bits(unsigned long field, unsigned long mask)
{
- static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
- const char *s = essid;
- char *d = escaped;
-
- if (iwl_is_empty_essid(essid, essid_len)) {
- memcpy(escaped, "<hidden>", sizeof("<hidden>"));
- return escaped;
- }
-
- essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE);
- while (essid_len--) {
- if (*s == '\0') {
- *d++ = '\\';
- *d++ = '0';
- s++;
- } else {
- *d++ = *s++;
- }
- }
- *d = '\0';
- return escaped;
+ return ((field & mask) == mask) ? 1 : 0;
}
static inline unsigned long elapsed_jiffies(unsigned long start,
@@ -303,62 +252,4 @@ static inline unsigned long elapsed_jiffies(unsigned long start,
return end + (MAX_JIFFY_OFFSET - start);
}
-#include <linux/ctype.h>
-
-static inline int snprint_line(char *buf, size_t count,
- const u8 * data, u32 len, u32 ofs)
-{
- int out, i, j, l;
- char c;
-
- out = snprintf(buf, count, "%08X", ofs);
-
- for (l = 0, i = 0; i < 2; i++) {
- out += snprintf(buf + out, count - out, " ");
- for (j = 0; j < 8 && l < len; j++, l++)
- out +=
- snprintf(buf + out, count - out, "%02X ",
- data[(i * 8 + j)]);
- for (; j < 8; j++)
- out += snprintf(buf + out, count - out, " ");
- }
- out += snprintf(buf + out, count - out, " ");
- for (l = 0, i = 0; i < 2; i++) {
- out += snprintf(buf + out, count - out, " ");
- for (j = 0; j < 8 && l < len; j++, l++) {
- c = data[(i * 8 + j)];
- if (!isascii(c) || !isprint(c))
- c = '.';
-
- out += snprintf(buf + out, count - out, "%c", c);
- }
-
- for (; j < 8; j++)
- out += snprintf(buf + out, count - out, " ");
- }
-
- return out;
-}
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-static inline void printk_buf(int level, const void *p, u32 len)
-{
- const u8 *data = p;
- char line[81];
- u32 ofs = 0;
- if (!(iwl_debug_level & level))
- return;
-
- while (len) {
- snprint_line(line, sizeof(line), &data[ofs],
- min(len, 16U), ofs);
- printk(KERN_DEBUG "%s\n", line);
- ofs += 16;
- len -= min(len, 16U);
- }
-}
-#else
-#define printk_buf(level, p, len) do {} while (0)
-#endif
-
#endif /* __iwl_helpers_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl-hw.h b/drivers/net/wireless/iwlwifi/iwl-hw.h
index e0facac..1aa6fcd 100644
--- a/drivers/net/wireless/iwlwifi/iwl-hw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-hw.h
@@ -64,18 +64,19 @@
#define __iwlwifi_hw_h__
/*
- * This file defines hardware / uCode API constants, enums,
- * and inline functions.
+ * This file defines hardware constants common to 3945 and 4965.
*
- * For common usage code where the implementation can be the same
- * with the exception of a different value going into a constant
- * those constants are defined in this file.
+ * Device-specific constants are defined in iwl-3945-hw.h and iwl-4965-hw.h,
+ * although this file contains a few definitions for which the .c
+ * implementation is the same for 3945 and 4965, except for the value of
+ * a constant.
*
- * NOTE: DO NOT PUT IMPLEMENTATION SPECIFIC DECLRATIONS HERE
+ * uCode API constants are defined in iwl-commands.h.
*
- * The iwl-*hw.h (and files they include) files should remain OS driver
- * implementation independent, declaring only the hardware/uCode API
+ * NOTE: DO NOT PUT OS IMPLEMENTATION-SPECIFIC DECLARATIONS HERE
*
+ * The iwl-*hw.h (and files they include) files should remain OS/driver
+ * implementation independent, declaring only the hardware interface.
*/
/* uCode queue management definitions */
@@ -83,6 +84,7 @@
#define IWL_CMD_FIFO_NUM 4
#define IWL_BACK_QUEUE_FIRST_ID 7
+/* Tx rates */
#define IWL_CCK_RATES 4
#define IWL_OFDM_RATES 8
@@ -94,12 +96,9 @@
#define IWL_MAX_RATES (IWL_CCK_RATES+IWL_OFDM_RATES+IWL_HT_RATES)
-/*
- * Time constants
- */
+/* Time constants */
#define SHORT_SLOT_TIME 9
#define LONG_SLOT_TIME 20
-#define OFDM_SYMBOL_TIME 4
/* RSSI to dBm */
#if IWL == 3945
@@ -111,658 +110,13 @@
#include "iwl-eeprom.h"
#include "iwl-commands.h"
-union tsf {
- u8 byte[8];
- __le16 word[4];
- __le32 dw[2];
-};
-
-/*
- * Alive Command & Response
- */
-
-#define UCODE_VALID_OK (0x1)
-#define INITIALIZE_SUBTYPE (9)
-
-struct iwl_alive_resp {
- u8 ucode_minor;
- u8 ucode_major;
- __le16 reserved1;
- u8 sw_rev[8];
- u8 ver_type;
- u8 ver_subtype;
- __le16 reserved2;
- __le32 log_event_table_ptr;
- __le32 error_event_table_ptr;
- __le32 timestamp;
- __le32 is_valid;
-} __attribute__ ((packed));
-
-struct iwl_init_alive_resp {
- u8 ucode_minor;
- u8 ucode_major;
- __le16 reserved1;
- u8 sw_rev[8];
- u8 ver_type;
- u8 ver_subtype;
- __le16 reserved2;
- __le32 log_event_table_ptr;
- __le32 error_event_table_ptr;
- __le32 timestamp;
- __le32 is_valid;
-
-#if IWL == 4965
- /* calibration values from "initialize" uCode */
- __le32 voltage; /* signed */
- __le32 therm_r1[2]; /* signed 1st for normal, 2nd for FAT channel */
- __le32 therm_r2[2]; /* signed */
- __le32 therm_r3[2]; /* signed */
- __le32 therm_r4[2]; /* signed */
- __le32 tx_atten[5][2]; /* signed MIMO gain comp, 5 freq groups,
- * 2 Tx chains */
-#endif
-} __attribute__ ((packed));
-
-/*
- * Error Command & Response
- */
-
-struct iwl_error_resp {
- __le32 error_type;
- u8 cmd_id;
- u8 reserved1;
- __le16 bad_cmd_seq_num;
-#if IWL == 3945
- __le16 reserved2;
-#endif
- __le32 error_info;
- union tsf timestamp;
-} __attribute__ ((packed));
-
#define PCI_LINK_CTRL 0x0F0
-
-/*
- * Rx config defines & structure
- */
-/* rx_config device types */
-enum {
- RXON_DEV_TYPE_AP = 1,
- RXON_DEV_TYPE_ESS = 3,
- RXON_DEV_TYPE_IBSS = 4,
- RXON_DEV_TYPE_SNIFFER = 6,
-};
-
-/* rx_config flags */
-enum {
- /* band & modulation selection */
- RXON_FLG_BAND_24G_MSK = (1 << 0),
- RXON_FLG_CCK_MSK = (1 << 1),
- /* auto detection enable */
- RXON_FLG_AUTO_DETECT_MSK = (1 << 2),
- /* TGg protection when tx */
- RXON_FLG_TGG_PROTECT_MSK = (1 << 3),
- /* cck short slot & preamble */
- RXON_FLG_SHORT_SLOT_MSK = (1 << 4),
- RXON_FLG_SHORT_PREAMBLE_MSK = (1 << 5),
- /* antenna selection */
- RXON_FLG_DIS_DIV_MSK = (1 << 7),
- RXON_FLG_ANT_SEL_MSK = 0x0f00,
- RXON_FLG_ANT_A_MSK = (1 << 8),
- RXON_FLG_ANT_B_MSK = (1 << 9),
- /* radar detection enable */
- RXON_FLG_RADAR_DETECT_MSK = (1 << 12),
- RXON_FLG_TGJ_NARROW_BAND_MSK = (1 << 13),
- /* rx response to host with 8-byte TSF
- * (according to ON_AIR deassertion) */
- RXON_FLG_TSF2HOST_MSK = (1 << 15)
-};
-
-/* rx_config filter flags */
-enum {
- /* accept all data frames */
- RXON_FILTER_PROMISC_MSK = (1 << 0),
- /* pass control & management to host */
- RXON_FILTER_CTL2HOST_MSK = (1 << 1),
- /* accept multi-cast */
- RXON_FILTER_ACCEPT_GRP_MSK = (1 << 2),
- /* don't decrypt uni-cast frames */
- RXON_FILTER_DIS_DECRYPT_MSK = (1 << 3),
- /* don't decrypt multi-cast frames */
- RXON_FILTER_DIS_GRP_DECRYPT_MSK = (1 << 4),
- /* STA is associated */
- RXON_FILTER_ASSOC_MSK = (1 << 5),
- /* transfer to host non bssid beacons in associated state */
- RXON_FILTER_BCON_AWARE_MSK = (1 << 6)
-};
-
-/*
- * RXON-Timings Command & Response
- */
-struct iwl_rxon_time_cmd {
- union tsf timestamp;
- __le16 beacon_interval;
- __le16 atim_window;
- __le32 beacon_init_val;
- __le16 listen_interval;
- __le16 reserved;
-} __attribute__ ((packed));
-
-/*
- * beacon QOS parameters Command & Response
- */
-struct iwl_ac_qos {
- __le16 cw_min;
- __le16 cw_max;
- u8 aifsn;
- u8 reserved1;
- __le16 edca_txop;
-} __attribute__ ((packed));
-
-/* QoS flags defines */
-#define MH_QOS_TXOP_TYPE_MSK 0x10
-#define QOS_PARAM_FLG_UPDATE_EDCA_MSK 0x1
-#define QOS_PARAM_FLG_TGN_MSK 0x2
-#define QOS_PARAM_FLG_TXOP_TYPE_MSK MH_QOS_TXOP_TYPE_MSK
-
-/*
- * TXFIFO Queue number defines
- */
-/* number of Access categories (AC) (EDCA), queues 0..3 */
-#define AC_NUM 4
-/* total number of queues */
-#define QUEUE_NUM 7
-/* command queue number */
-
-struct iwl_qosparam_cmd {
- __le32 qos_flags;
- struct iwl_ac_qos ac[AC_NUM];
-} __attribute__ ((packed));
-
-/*
- * Multi station support
- */
-#if IWL == 3945
-enum {
- IWL_AP_ID = 0,
- IWL_MULTICAST_ID,
- IWL_STA_ID,
- IWL_BROADCAST_ID = 24,
- IWL_STATION_COUNT = 25,
- IWL_INVALID_STATION
-};
-#elif IWL == 4965
-enum {
- IWL_AP_ID = 0,
- IWL_MULTICAST_ID,
- IWL_STA_ID,
- IWL_BROADCAST_ID = 31,
- IWL_STATION_COUNT = 32,
- IWL_INVALID_STATION
-};
-#endif
-
-#define STA_CONTROL_MODIFY_MSK 0x01
-
-/* key flags */
-enum {
- STA_KEY_FLG_ENCRYPT_MSK = 0x7,
- STA_KEY_FLG_NO_ENC = 0x0,
- STA_KEY_FLG_WEP = 0x1,
- STA_KEY_FLG_CCMP = 0x2,
- STA_KEY_FLG_TKIP = 0x3,
-
- STA_KEY_FLG_KEYID_POS = 8,
- STA_KEY_FLG_INVALID = 0x0800,
-};
-
-/* modify flags */
-enum {
- STA_MODIFY_KEY_MASK = 0x01,
- STA_MODIFY_TID_DISABLE_TX = 0x02,
- STA_MODIFY_TX_RATE_MSK = 0x04
-};
-
-/*
- * Antenna masks:
- * bit14:15 01 B inactive, A active
- * 10 B active, A inactive
- * 11 Both active
- */
-#define RATE_MCS_ANT_A_POS 14
-#define RATE_MCS_ANT_B_POS 15
-#define RATE_MCS_ANT_A_MSK 0x4000
-#define RATE_MCS_ANT_B_MSK 0x8000
-#define RATE_MCS_ANT_AB_MSK 0xc000
-
-/*
- * WEP/CKIP group key command
- */
-struct iwl_key {
- u8 index;
- u8 reserved[3];
- __le32 size;
- u8 key[16];
-} __attribute__ ((packed));
-
-struct iwl_key_cmd {
- u8 count;
- u8 decrypt_type;
- u8 reserved[2];
- struct iwl_key key[4];
-} __attribute__ ((packed));
-
-struct iwl_rx_frame_stats {
- u8 phy_count;
- u8 id;
- u8 rssi;
- u8 agc;
- __le16 sig_avg;
- __le16 noise_diff;
- u8 payload[0];
-} __attribute__ ((packed));
-
-struct iwl_rx_frame_hdr {
- __le16 channel;
- __le16 phy_flags;
- u8 reserved1;
- u8 rate;
- __le16 len;
- u8 payload[0];
-} __attribute__ ((packed));
-
-enum {
- RX_RES_STATUS_NO_CRC32_ERROR = (1 << 0),
- RX_RES_STATUS_NO_RXE_OVERFLOW = (1 << 1),
-};
-
-enum {
- RX_RES_PHY_FLAGS_BAND_24_MSK = (1 << 0),
- RX_RES_PHY_FLAGS_MOD_CCK_MSK = (1 << 1),
- RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK = (1 << 2),
- RX_RES_PHY_FLAGS_NARROW_BAND_MSK = (1 << 3),
- RX_RES_PHY_FLAGS_ANTENNA_MSK = 0xf0,
-
- RX_RES_STATUS_SEC_TYPE_MSK = (0x7 << 8),
- RX_RES_STATUS_SEC_TYPE_NONE = (STA_KEY_FLG_NO_ENC << 8),
- RX_RES_STATUS_SEC_TYPE_WEP = (STA_KEY_FLG_WEP << 8),
- RX_RES_STATUS_SEC_TYPE_TKIP = (STA_KEY_FLG_TKIP << 8),
- RX_RES_STATUS_SEC_TYPE_CCMP = (STA_KEY_FLG_CCMP << 8),
-
- RX_RES_STATUS_DECRYPT_TYPE_MSK = (0x3 << 11),
- RX_RES_STATUS_NOT_DECRYPT = (0x0 << 11),
- RX_RES_STATUS_DECRYPT_OK = (0x3 << 11),
- RX_RES_STATUS_BAD_ICV_MIC = (0x1 << 11),
- RX_RES_STATUS_BAD_KEY_TTAK = (0x2 << 11),
-};
-
-struct iwl_rx_frame_end {
- __le32 status;
- __le64 timestamp;
- __le32 beacon_timestamp;
-} __attribute__ ((packed));
-
-/* NOTE: DO NOT dereference from casts to this structure
- * It is provided only for calculating minimum data set size.
- * The actual offsets of the hdr and end are dynamic based on
- * stats.phy_count */
-struct iwl_rx_frame {
- struct iwl_rx_frame_stats stats;
- struct iwl_rx_frame_hdr hdr;
- struct iwl_rx_frame_end end;
-} __attribute__ ((packed));
-
-/*
- * Tx Power Table Command
- */
-struct iwl_power_per_rate {
- u8 rate; /* plcp */
- struct iwl_tx_power tpc;
- u8 reserved;
-} __attribute__ ((packed));
-
-struct iwl_txpowertable_cmd {
- u8 band;
- u8 reserved;
- __le16 channel;
- struct iwl_power_per_rate power[IWL_MAX_RATES];
-} __attribute__ ((packed));
-
-/*
- * Scan Request Commands , Responses & Notifications
- */
-
-/* Can abort will notify by complete notification with abort status. */
-#define CAN_ABORT_STATUS 0x1
-
-struct iwl_scanreq_notification {
- __le32 status;
-} __attribute__ ((packed));
-
-struct iwl_scanstart_notification {
- __le32 tsf_low;
- __le32 tsf_high;
- __le32 beacon_timer;
- u8 channel;
- u8 band;
- u8 reserved[2];
- __le32 status;
-} __attribute__ ((packed));
-
-#define SCAN_OWNER_STATUS 0x1;
-#define MEASURE_OWNER_STATUS 0x2;
-
-#define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */
-struct iwl_scanresults_notification {
- u8 channel;
- u8 band;
- u8 reserved[2];
- __le32 tsf_low;
- __le32 tsf_high;
- __le32 statistics[NUMBER_OF_STATISTICS];
-} __attribute__ ((packed));
-
-struct iwl_scancomplete_notification {
- u8 scanned_channels;
- u8 status;
- u8 reserved;
- u8 last_channel;
- __le32 tsf_low;
- __le32 tsf_high;
-} __attribute__ ((packed));
-
-/* complete notification statuses */
-#define ABORT_STATUS 0x2
-
-/*
- * LEDs Command & Response
- */
-struct iwl_led_cmd {
- __le32 interval;
- u8 id;
- u8 off;
- u8 on;
- u8 reserved;
-} __attribute__ ((packed));
-
-/*
- * card_state Command and Notification
- */
-
-#define CARD_STATE_CMD_DISABLE 0x00
-#define CARD_STATE_CMD_ENABLE 0x01
-
-struct iwl_card_state_notif {
- __le32 flags;
-} __attribute__ ((packed));
-
-#define HW_CARD_DISABLED 0x01
-#define SW_CARD_DISABLED 0x02
-#define RF_CARD_DISABLED 0x04
-#define RXON_CARD_DISABLED 0x10
-
-/*
- * Tx Beacon Command & Response
- */
-struct iwl_beacon_notif {
- struct iwl_tx_resp beacon_notify_hdr;
- __le32 low_tsf;
- __le32 high_tsf;
- __le32 ibss_mgr_status;
-} __attribute__ ((packed));
-
-struct iwl_tx_beacon_cmd {
- struct iwl_tx_cmd tx;
- __le16 tim_idx;
- u8 tim_size;
- u8 reserved1;
- struct ieee80211_hdr frame[0]; /* beacon frame */
-} __attribute__ ((packed));
-
-/*
- * Spectrum Management
- */
-#define MEASUREMENT_FILTER_FLAG (RXON_FILTER_PROMISC_MSK | \
- RXON_FILTER_CTL2HOST_MSK | \
- RXON_FILTER_ACCEPT_GRP_MSK | \
- RXON_FILTER_DIS_DECRYPT_MSK | \
- RXON_FILTER_DIS_GRP_DECRYPT_MSK | \
- RXON_FILTER_ASSOC_MSK | \
- RXON_FILTER_BCON_AWARE_MSK)
-
-struct iwl_measure_channel {
- __le32 duration; /* measurement duration in extended beacon
- * format */
- u8 channel; /* channel to measure */
- u8 type; /* see enum iwl_measure_type */
- __le16 reserved;
-} __attribute__ ((packed));
-
-struct iwl_spectrum_cmd {
- __le16 len; /* number of bytes starting from token */
- u8 token; /* token id */
- u8 id; /* measurement id -- 0 or 1 */
- u8 origin; /* 0 = TGh, 1 = other, 2 = TGk */
- u8 periodic; /* 1 = periodic */
- __le16 path_loss_timeout;
- __le32 start_time; /* start time in extended beacon format */
- __le32 reserved2;
- __le32 flags; /* rxon flags */
- __le32 filter_flags; /* rxon filter flags */
- __le16 channel_count; /* minimum 1, maximum 10 */
- __le16 reserved3;
- struct iwl_measure_channel channels[10];
-} __attribute__ ((packed));
-
-struct iwl_spectrum_resp {
- u8 token;
- u8 id; /* id of the prior command replaced, or 0xff */
- __le16 status; /* 0 - command will be handled
- * 1 - cannot handle (conflicts with another
- * measurement) */
-} __attribute__ ((packed));
-
-enum iwl_measurement_state {
- IWL_MEASUREMENT_START = 0,
- IWL_MEASUREMENT_STOP = 1,
-};
-
-enum iwl_measurement_status {
- IWL_MEASUREMENT_OK = 0,
- IWL_MEASUREMENT_CONCURRENT = 1,
- IWL_MEASUREMENT_CSA_CONFLICT = 2,
- IWL_MEASUREMENT_TGH_CONFLICT = 3,
- /* 4-5 reserved */
- IWL_MEASUREMENT_STOPPED = 6,
- IWL_MEASUREMENT_TIMEOUT = 7,
- IWL_MEASUREMENT_PERIODIC_FAILED = 8,
-};
-
-#define NUM_ELEMENTS_IN_HISTOGRAM 8
-
-struct iwl_measurement_histogram {
- __le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */
- __le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */
-} __attribute__ ((packed));
-
-/* clear channel availability counters */
-struct iwl_measurement_cca_counters {
- __le32 ofdm;
- __le32 cck;
-} __attribute__ ((packed));
-
-enum iwl_measure_type {
- IWL_MEASURE_BASIC = (1 << 0),
- IWL_MEASURE_CHANNEL_LOAD = (1 << 1),
- IWL_MEASURE_HISTOGRAM_RPI = (1 << 2),
- IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
- IWL_MEASURE_FRAME = (1 << 4),
- /* bits 5:6 are reserved */
- IWL_MEASURE_IDLE = (1 << 7),
-};
-
-struct iwl_spectrum_notification {
- u8 id; /* measurement id -- 0 or 1 */
- u8 token;
- u8 channel_index; /* index in measurement channel list */
- u8 state; /* 0 - start, 1 - stop */
- __le32 start_time; /* lower 32-bits of TSF */
- u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */
- u8 channel;
- u8 type; /* see enum iwl_measurement_type */
- u8 reserved1;
- /* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only
- * valid if applicable for measurement type requested. */
- __le32 cca_ofdm; /* cca fraction time in 40Mhz clock periods */
- __le32 cca_cck; /* cca fraction time in 44Mhz clock periods */
- __le32 cca_time; /* channel load time in usecs */
- u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 -
- * unidentified */
- u8 reserved2[3];
- struct iwl_measurement_histogram histogram;
- __le32 stop_time; /* lower 32-bits of TSF */
- __le32 status; /* see iwl_measurement_status */
-} __attribute__ ((packed));
-
-struct iwl_csa_notification {
- __le16 band;
- __le16 channel;
- __le32 status; /* 0 - OK, 1 - fail */
-} __attribute__ ((packed));
-
-struct iwl_sleep_notification {
- u8 pm_sleep_mode;
- u8 pm_wakeup_src;
- __le16 reserved;
- __le32 sleep_time;
- __le32 tsf_low;
- __le32 bcon_timer;
-} __attribute__ ((packed));
-
-enum {
- IWL_PM_NO_SLEEP = 0,
- IWL_PM_SLP_MAC = 1,
- IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
- IWL_PM_SLP_FULL_MAC_CARD_STATE = 3,
- IWL_PM_SLP_PHY = 4,
- IWL_PM_SLP_REPENT = 5,
- IWL_PM_WAKEUP_BY_TIMER = 6,
- IWL_PM_WAKEUP_BY_DRIVER = 7,
- IWL_PM_WAKEUP_BY_RFKILL = 8,
- /* 3 reserved */
- IWL_PM_NUM_OF_MODES = 12,
-};
-
-struct iwl_bt_cmd {
- u8 flags;
- u8 lead_time;
- u8 max_kill;
- u8 reserved;
- __le32 kill_ack_mask;
- __le32 kill_cts_mask;
-} __attribute__ ((packed));
-
-struct rx_phy_statistics {
- __le32 ina_cnt; /* number of INA signal assertions (enter RX) */
- __le32 fina_cnt; /* number of FINA signal assertions
- * (false_alarm = INA - FINA) */
- __le32 plcp_err; /* number of bad PLCP header detections
- * (PLCP_good = FINA - PLCP_bad) */
- __le32 crc32_err; /* number of CRC32 error detections */
- __le32 overrun_err; /* number of Overrun detections (this is due
- * to RXE sync overrun) */
- __le32 early_overrun_err; /* number of times RX is aborted at the
- * start because rxfifo is full behind
- * threshold */
- __le32 crc32_good; /* number of frames with good CRC */
- __le32 false_alarm_cnt; /* number of times false alarm was
- * detected (i.e. INA w/o FINA) */
- __le32 fina_sync_err_cnt; /* number of times sync problem between
- * HW & SW FINA counter was found */
- __le32 sfd_timeout; /* number of times got SFD timeout
- * (i.e. got FINA w/o rx_frame) */
- __le32 fina_timeout; /* number of times got FINA timeout (i.e. got
- * INA w/o FINA, w/o false alarm) */
- __le32 unresponded_rts; /* un-responded RTS, due to NAV not zero */
- __le32 rxe_frame_limit_overrun; /* RXE got frame limit overrun */
- __le32 sent_ack_cnt; /* ACK TX count */
- __le32 sent_cts_cnt; /* CTS TX count */
-} __attribute__ ((packed));
-
-struct rx_non_phy_statistics {
- __le32 bogus_cts; /* CTS received when not expecting CTS */
- __le32 bogus_ack; /* ACK received when not expecting ACK */
- __le32 non_bssid_frames;/* number of frames with BSSID that doesn't
- * belong to the STA BSSID */
- __le32 filtered_frames; /* count frames that were dumped in the
- * filtering process */
-} __attribute__ ((packed));
-
-struct rx_statistics {
- struct rx_phy_statistics ofdm;
- struct rx_phy_statistics cck;
- struct rx_non_phy_statistics general;
-} __attribute__ ((packed));
-
-struct tx_non_phy_statistics {
- __le32 preamble_cnt; /* number of times preamble was asserted */
- __le32 rx_detected_cnt; /* number of times TX was delayed to RX
- * detected */
- __le32 bt_prio_defer_cnt;/* number of times TX was deferred due to
- * BT priority */
- __le32 bt_prio_kill_cnt;/* number of times TX was killed due to BT
- * priority */
- __le32 few_bytes_cnt; /* number of times TX was delayed due to not
- * enough bytes in TXFIFO */
- __le32 cts_timeout; /* timeout when waiting for CTS */
- __le32 ack_timeout; /* timeout when waiting for ACK */
- __le32 expected_ack_cnt;/* number of data frames that need ack or
- * rts that need cts */
- __le32 actual_ack_cnt; /* number of expected ack or cts that were
- * actually received */
-} __attribute__ ((packed));
-
-struct tx_statistics {
- struct tx_non_phy_statistics general;
-} __attribute__ ((packed));
-
-struct debug_statistics {
- __le32 cont_burst_chk_cnt;/* number of times continuation or
- * fragmentation or bursting was checked */
- __le32 cont_burst_cnt; /* number of times continuation,
- * fragmentation, or bursting was successful */
- __le32 reserved[4];
-} __attribute__ ((packed));
-
-#define IWL_TEMP_CONVERT 260
-
-struct general_statistics {
- __le32 temperature;
- struct debug_statistics debug;
- __le32 usec_sleep; /* < usecs NIC was asleep. Running counter. */
- __le32 slots_out; /* < slots NIC was out of serving channel */
- __le32 slots_idle; /* < slots NIC was idle */
-} __attribute__ ((packed));
-
-struct statistics {
- __le32 flags;
- struct rx_statistics rx_statistics;
- struct tx_statistics tx_statistics;
- struct general_statistics general_statistics;
-} __attribute__ ((packed));
-
-/* if ucode missed CONSECUTIVE_MISSED_BCONS_TH beacons in a row,
- * then this notification will be sent. */
-#define CONSECUTIVE_MISSED_BCONS_TH 20
-
-/* register and values */
-/* base */
-#define CSR_BASE (0x0)
-#define HBUS_BASE (0x400)
-#define FH_BASE (0x800)
-
-#define HBUS_TARG_MBX_C (HBUS_BASE+0x030)
+#define PCI_POWER_SOURCE 0x0C8
+#define PCI_REG_WUM8 0x0E8
+#define PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT (0x80000000)
/*=== CSR (control and status registers) ===*/
+#define CSR_BASE (0x000)
#define CSR_SW_VER (CSR_BASE+0x000)
#define CSR_HW_IF_CONFIG_REG (CSR_BASE+0x000) /* hardware interface config */
@@ -773,55 +127,129 @@ struct statistics {
#define CSR_GPIO_IN (CSR_BASE+0x018) /* read external chip pins */
#define CSR_RESET (CSR_BASE+0x020) /* busmaster enable, NMI, etc*/
#define CSR_GP_CNTRL (CSR_BASE+0x024)
-/* 0x028 - reserved */
+#define CSR_HW_REV (CSR_BASE+0x028)
#define CSR_EEPROM_REG (CSR_BASE+0x02c)
#define CSR_EEPROM_GP (CSR_BASE+0x030)
-#define CSR_EEPROM_GP_VALID_MSK 0x00000007
-#define CSR_EEPROM_GP_BAD_SIGNATURE 0x00000000
-#if IWL == 3945
-#define CSR_EEPROM_GP_OWNER 0x00000180
-#endif
+#define CSR_GP_UCODE (CSR_BASE+0x044)
#define CSR_UCODE_DRV_GP1 (CSR_BASE+0x054)
#define CSR_UCODE_DRV_GP1_SET (CSR_BASE+0x058)
#define CSR_UCODE_DRV_GP1_CLR (CSR_BASE+0x05c)
#define CSR_UCODE_DRV_GP2 (CSR_BASE+0x060)
+#define CSR_LED_REG (CSR_BASE+0x094)
+#define CSR_DRAM_INT_TBL_CTL (CSR_BASE+0x0A0)
#define CSR_GIO_CHICKEN_BITS (CSR_BASE+0x100)
#define CSR_ANA_PLL_CFG (CSR_BASE+0x20c)
#define CSR_HW_REV_WA_REG (CSR_BASE+0x22C)
-/* BSM (Bootstrap State Machine) */
-#define BSM_BASE (CSR_BASE + 0x3400)
+/* HW I/F configuration */
+#define CSR_HW_IF_CONFIG_REG_BIT_ALMAGOR_MB (0x00000100)
+#define CSR_HW_IF_CONFIG_REG_BIT_ALMAGOR_MM (0x00000200)
+#define CSR_HW_IF_CONFIG_REG_BIT_SKU_MRC (0x00000400)
+#define CSR_HW_IF_CONFIG_REG_BIT_BOARD_TYPE (0x00000800)
+#define CSR_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A (0x00000000)
+#define CSR_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B (0x00001000)
+#define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM (0x00200000)
-#define BSM_WR_CTRL_REG (BSM_BASE + 0x000) /* ctl and status */
-#define BSM_WR_MEM_SRC_REG (BSM_BASE + 0x004) /* source in BSM mem */
-#define BSM_WR_MEM_DST_REG (BSM_BASE + 0x008) /* dest in SRAM mem */
-#define BSM_WR_DWCOUNT_REG (BSM_BASE + 0x00C) /* bytes */
-#define BSM_WR_STATUS_REG (BSM_BASE + 0x010) /* bit 0: 1 == done */
+/* interrupt flags in INTA, set by uCode or hardware (e.g. dma),
+ * acknowledged (reset) by host writing "1" to flagged bits. */
+#define CSR_INT_BIT_FH_RX (1<<31) /* Rx DMA, cmd responses, FH_INT[17:16] */
+#define CSR_INT_BIT_HW_ERR (1<<29) /* DMA hardware error FH_INT[31] */
+#define CSR_INT_BIT_DNLD (1<<28) /* uCode Download */
+#define CSR_INT_BIT_FH_TX (1<<27) /* Tx DMA FH_INT[1:0] */
+#define CSR_INT_BIT_MAC_CLK_ACTV (1<<26) /* NIC controller's clock toggled on/off */
+#define CSR_INT_BIT_SW_ERR (1<<25) /* uCode error */
+#define CSR_INT_BIT_RF_KILL (1<<7) /* HW RFKILL switch GP_CNTRL[27] toggled */
+#define CSR_INT_BIT_CT_KILL (1<<6) /* Critical temp (chip too hot) rfkill */
+#define CSR_INT_BIT_SW_RX (1<<3) /* Rx, command responses, 3945 */
+#define CSR_INT_BIT_WAKEUP (1<<1) /* NIC controller waking up (pwr mgmt) */
+#define CSR_INT_BIT_ALIVE (1<<0) /* uCode interrupts once it initializes */
+
+#define CSR_INI_SET_MASK (CSR_INT_BIT_FH_RX | \
+ CSR_INT_BIT_HW_ERR | \
+ CSR_INT_BIT_FH_TX | \
+ CSR_INT_BIT_SW_ERR | \
+ CSR_INT_BIT_RF_KILL | \
+ CSR_INT_BIT_SW_RX | \
+ CSR_INT_BIT_WAKEUP | \
+ CSR_INT_BIT_ALIVE)
-/* pointers and size regs for bootstrap load and data SRAM save */
-#define BSM_DRAM_INST_PTR_REG (BSM_BASE + 0x090)
-#define BSM_DRAM_INST_BYTECOUNT_REG (BSM_BASE + 0x094)
-#define BSM_DRAM_DATA_PTR_REG (BSM_BASE + 0x098)
-#define BSM_DRAM_DATA_BYTECOUNT_REG (BSM_BASE + 0x09C)
+/* interrupt flags in FH (flow handler) (PCI busmaster DMA) */
+#define CSR_FH_INT_BIT_ERR (1<<31) /* Error */
+#define CSR_FH_INT_BIT_HI_PRIOR (1<<30) /* High priority Rx, bypass coalescing */
+#define CSR_FH_INT_BIT_RX_CHNL2 (1<<18) /* Rx channel 2 (3945 only) */
+#define CSR_FH_INT_BIT_RX_CHNL1 (1<<17) /* Rx channel 1 */
+#define CSR_FH_INT_BIT_RX_CHNL0 (1<<16) /* Rx channel 0 */
+#define CSR_FH_INT_BIT_TX_CHNL6 (1<<6) /* Tx channel 6 (3945 only) */
+#define CSR_FH_INT_BIT_TX_CHNL1 (1<<1) /* Tx channel 1 */
+#define CSR_FH_INT_BIT_TX_CHNL0 (1<<0) /* Tx channel 0 */
-/* BSM special memory, stays powered during power-save sleeps */
-#define BSM_SRAM_LOWER_BOUND (CSR_BASE + 0x3800)
-#define BSM_SRAM_SIZE (1024)
+#define CSR_FH_INT_RX_MASK (CSR_FH_INT_BIT_HI_PRIOR | \
+ CSR_FH_INT_BIT_RX_CHNL2 | \
+ CSR_FH_INT_BIT_RX_CHNL1 | \
+ CSR_FH_INT_BIT_RX_CHNL0)
-/* DBG MON */
+#define CSR_FH_INT_TX_MASK (CSR_FH_INT_BIT_TX_CHNL6 | \
+ CSR_FH_INT_BIT_TX_CHNL1 | \
+ CSR_FH_INT_BIT_TX_CHNL0 )
-/* SCD */
-#define SCD_BASE (CSR_BASE + 0x2E00)
-#define SCD_MODE_REG (SCD_BASE + 0x000)
-#define SCD_ARASTAT_REG (SCD_BASE + 0x004)
-#define SCD_TXFACT_REG (SCD_BASE + 0x010)
-#define SCD_TXF4MF_REG (SCD_BASE + 0x014)
-#define SCD_TXF5MF_REG (SCD_BASE + 0x020)
-#define SCD_SBYP_MODE_1_REG (SCD_BASE + 0x02C)
-#define SCD_SBYP_MODE_2_REG (SCD_BASE + 0x030)
+/* RESET */
+#define CSR_RESET_REG_FLAG_NEVO_RESET (0x00000001)
+#define CSR_RESET_REG_FLAG_FORCE_NMI (0x00000002)
+#define CSR_RESET_REG_FLAG_SW_RESET (0x00000080)
+#define CSR_RESET_REG_FLAG_MASTER_DISABLED (0x00000100)
+#define CSR_RESET_REG_FLAG_STOP_MASTER (0x00000200)
+
+/* GP (general purpose) CONTROL */
+#define CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY (0x00000001)
+#define CSR_GP_CNTRL_REG_FLAG_INIT_DONE (0x00000004)
+#define CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ (0x00000008)
+#define CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP (0x00000010)
+
+#define CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN (0x00000001)
+
+#define CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE (0x07000000)
+#define CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE (0x04000000)
+#define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW (0x08000000)
+
+
+/* EEPROM REG */
+#define CSR_EEPROM_REG_READ_VALID_MSK (0x00000001)
+#define CSR_EEPROM_REG_BIT_CMD (0x00000002)
+
+/* EEPROM GP */
+#define CSR_EEPROM_GP_VALID_MSK (0x00000006)
+#define CSR_EEPROM_GP_BAD_SIGNATURE (0x00000000)
+#define CSR_EEPROM_GP_IF_OWNER_MSK (0x00000180)
+
+/* UCODE DRV GP */
+#define CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP (0x00000001)
+#define CSR_UCODE_SW_BIT_RFKILL (0x00000002)
+#define CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED (0x00000004)
+#define CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT (0x00000008)
+
+/* GPIO */
+#define CSR_GPIO_IN_BIT_AUX_POWER (0x00000200)
+#define CSR_GPIO_IN_VAL_VAUX_PWR_SRC (0x00000000)
+#define CSR_GPIO_IN_VAL_VMAIN_PWR_SRC CSR_GPIO_IN_BIT_AUX_POWER
+
+/* GI Chicken Bits */
+#define CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX (0x00800000)
+#define CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER (0x20000000)
+
+/* CSR_ANA_PLL_CFG */
+#define CSR_ANA_PLL_CFG_SH (0x00880300)
+
+#define CSR_LED_REG_TRUN_ON (0x00000078)
+#define CSR_LED_REG_TRUN_OFF (0x00000038)
+#define CSR_LED_BSM_CTRL_MSK (0xFFFFFFDF)
+
+/* DRAM_INT_TBL_CTRL */
+#define CSR_DRAM_INT_TBL_CTRL_EN (1<<31)
+#define CSR_DRAM_INT_TBL_CTRL_WRAP_CHK (1<<27)
-/*=== HBUS (Host-side bus) ===*/
+/*=== HBUS (Host-side Bus) ===*/
+#define HBUS_BASE (0x400)
#define HBUS_TARG_MEM_RADDR (HBUS_BASE+0x00c)
#define HBUS_TARG_MEM_WADDR (HBUS_BASE+0x010)
@@ -832,7 +260,23 @@ struct statistics {
#define HBUS_TARG_PRPH_WDAT (HBUS_BASE+0x04c)
#define HBUS_TARG_PRPH_RDAT (HBUS_BASE+0x050)
#define HBUS_TARG_WRPTR (HBUS_BASE+0x060)
-/*=== FH (data Flow handler) ===*/
+
+#define HBUS_TARG_MBX_C (HBUS_BASE+0x030)
+
+
+/* SCD (Scheduler) */
+#define SCD_BASE (CSR_BASE + 0x2E00)
+
+#define SCD_MODE_REG (SCD_BASE + 0x000)
+#define SCD_ARASTAT_REG (SCD_BASE + 0x004)
+#define SCD_TXFACT_REG (SCD_BASE + 0x010)
+#define SCD_TXF4MF_REG (SCD_BASE + 0x014)
+#define SCD_TXF5MF_REG (SCD_BASE + 0x020)
+#define SCD_SBYP_MODE_1_REG (SCD_BASE + 0x02C)
+#define SCD_SBYP_MODE_2_REG (SCD_BASE + 0x030)
+
+/*=== FH (data Flow Handler) ===*/
+#define FH_BASE (0x800)
#define FH_CBCC_TABLE (FH_BASE+0x140)
#define FH_TFDB_TABLE (FH_BASE+0x180)
@@ -879,125 +323,9 @@ struct statistics {
/* 18 - reserved */
/* card static random access memory (SRAM) for processor data and instructs */
-#define RTC_INST_LOWER_BOUND (0x00000)
-#define ALM_RTC_INST_UPPER_BOUND (0x14000)
-
-#define RTC_DATA_LOWER_BOUND (0x800000)
-#define ALM_RTC_DATA_UPPER_BOUND (0x808000)
-
-#define ALM_RTC_INST_SIZE (ALM_RTC_INST_UPPER_BOUND - RTC_INST_LOWER_BOUND)
-#define ALM_RTC_DATA_SIZE (ALM_RTC_DATA_UPPER_BOUND - RTC_DATA_LOWER_BOUND)
+#define RTC_INST_LOWER_BOUND (0x000000)
+#define RTC_DATA_LOWER_BOUND (0x800000)
-#define VALID_RTC_DATA_ADDR(addr) \
- ( ((addr) >= RTC_DATA_LOWER_BOUND) && ((addr) < ALM_RTC_DATA_UPPER_BOUND) )
-
-
-/* HW I/F configuration */
-#define CSR_HW_IF_CONFIG_REG_BIT_ALMAGOR_MB (0x00000100)
-#define CSR_HW_IF_CONFIG_REG_BIT_ALMAGOR_MM (0x00000200)
-#define CSR_HW_IF_CONFIG_REG_BIT_SKU_MRC (0x00000400)
-#define CSR_HW_IF_CONFIG_REG_BIT_BOARD_TYPE (0x00000800)
-#define CSR_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A (0x00000000)
-#define CSR_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B (0x00001000)
-
-#define CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP (0x00000001)
-#define CSR_UCODE_SW_BIT_RFKILL (0x00000002)
-#define CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED (0x00000004)
-#define CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT (0x00000008)
-
-#define CSR_GPIO_IN_BIT_AUX_POWER (0x00000200)
-#define CSR_GPIO_IN_VAL_VAUX_PWR_SRC (0x00000000)
-#define CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX (0x00800000)
-#define CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER (0x20000000)
-#define CSR_GPIO_IN_VAL_VMAIN_PWR_SRC CSR_GPIO_IN_BIT_AUX_POWER
-
-#define PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT (0x80000000)
-
-
-/* interrupt flags in INTA, set by uCode or hardware (e.g. dma),
- * acknowledged (reset) by host writing "1" to flagged bits. */
-#define BIT_INT_FH_RX (1<<31) /* Rx DMA, cmd responses, FH_INT[17:16] */
-#define BIT_INT_ERR (1<<29) /* DMA hardware error FH_INT[31] */
-#define BIT_INT_FH_TX (1<<27) /* Tx DMA FH_INT[1:0] */
-#define BIT_INT_MAC_CLK_ACTV (1<<26) /* NIC controller's clock toggled on/off */
-#define BIT_INT_SWERROR (1<<25) /* uCode error */
-#define BIT_INT_RF_KILL (1<<7) /* HW RFKILL switch GP_CNTRL[27] toggled */
-#define BIT_INT_CT_KILL (1<<6) /* Critical temp (chip too hot) rfkill */
-#define BIT_INT_SW_RX (1<<3) /* Rx, command responses, 3945 */
-#define BIT_INT_WAKEUP (1<<1) /* NIC controller waking up (pwr mgmt) */
-#define BIT_INT_ALIVE (1<<0) /* uCode interrupts once it initializes */
-
-#define CSR_INI_SET_MASK ( BIT_INT_FH_RX | \
- BIT_INT_ERR | \
- BIT_INT_FH_TX | \
- BIT_INT_SWERROR | \
- BIT_INT_RF_KILL | \
- BIT_INT_SW_RX | \
- BIT_INT_WAKEUP | \
- BIT_INT_ALIVE )
-
-/* interrupt flags in FH (flow handler) (PCI busmaster DMA) */
-#define BIT_FH_INT_ERR (1<<31) /* Error */
-#define BIT_FH_INT_HI_PRIOR (1<<30) /* High priority Rx, bypass coalescing */
-#define BIT_FH_INT_RX_CHNL2 (1<<18) /* Rx channel 2 (3945 only) */
-#define BIT_FH_INT_RX_CHNL1 (1<<17) /* Rx channel 1 */
-#define BIT_FH_INT_RX_CHNL0 (1<<16) /* Rx channel 0 */
-#define BIT_FH_INT_TX_CHNL6 (1<<6) /* Tx channel 6 (3945 only) */
-#define BIT_FH_INT_TX_CHNL1 (1<<1) /* Tx channel 1 */
-#define BIT_FH_INT_TX_CHNL0 (1<<0) /* Tx channel 0 */
-
-#define FH_INT_RX_MASK ( BIT_FH_INT_HI_PRIOR | \
- BIT_FH_INT_RX_CHNL2 | \
- BIT_FH_INT_RX_CHNL1 | \
- BIT_FH_INT_RX_CHNL0 )
-
-#define FH_INT_TX_MASK ( BIT_FH_INT_TX_CHNL6 | \
- BIT_FH_INT_TX_CHNL1 | \
- BIT_FH_INT_TX_CHNL0 )
-
-/* RESET */
-#define CSR_RESET_REG_FLAG_NEVO_RESET (0x00000001)
-#define CSR_RESET_REG_FLAG_FORCE_NMI (0x00000002)
-#define CSR_RESET_REG_FLAG_SW_RESET (0x00000080)
-#define CSR_RESET_REG_FLAG_MASTER_DISABLED (0x00000100)
-#define CSR_RESET_REG_FLAG_STOP_MASTER (0x00000200)
-
-/* GP (general purpose) CONTROL */
-#define CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY (0x00000001)
-#define CSR_GP_CNTRL_REG_FLAG_INIT_DONE (0x00000004)
-#define CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ (0x00000008)
-#define CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP (0x00000010)
-
-#define CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN (0x00000001)
-
-#define CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE (0x07000000)
-#define CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE (0x04000000)
-#define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW (0x08000000)
-
-/* APMG (power management) constants */
-#define APMG_CLK_CTRL_REG (0x003000)
-#define ALM_APMG_CLK_EN (0x003004)
-#define ALM_APMG_CLK_DIS (0x003008)
-#define ALM_APMG_PS_CTL (0x00300c)
-#define ALM_APMG_PCIDEV_STT (0x003010)
-#define ALM_APMG_RFKILL (0x003014)
-#define ALM_APMG_LARC_INT (0x00301c)
-#define ALM_APMG_LARC_INT_MSK (0x003020)
-
-#define APMG_CLK_REG_VAL_DMA_CLK_RQT (0x00000200)
-#define APMG_CLK_REG_VAL_BSM_CLK_RQT (0x00000800)
-
-#define APMG_PS_CTRL_REG_VAL_ALM_R_RESET_REQ (0x04000000)
-
-#define APMG_DEV_STATE_REG_VAL_L1_ACTIVE_DISABLE (0x00000800)
-
-#define APMG_PS_CTRL_REG_MSK_POWER_SRC (0x03000000)
-#define APMG_PS_CTRL_REG_VAL_POWER_SRC_VMAIN (0x00000000)
-#define APMG_PS_CTRL_REG_VAL_POWER_SRC_VAUX (0x01000000)
-
-/* BSM (bootstrap state machine) */
-#define BSM_WR_CTRL_REG_BIT_START (0x80000000) /* start boot load now */
-#define BSM_WR_CTRL_REG_BIT_START_EN (0x40000000) /* enable boot after pwrup*/
/* DBM */
@@ -1075,8 +403,6 @@ struct statistics {
#define IWL_MAX_CMD_SIZE 1024
-/* LEDs mode */
-
#define IWL_DEFAULT_TX_RETRY 15
#define IWL_MAX_TX_RETRY 16
@@ -1086,35 +412,9 @@ struct statistics {
#define NUM_TFD_CHUNKS 4
#define RX_QUEUE_SIZE 256
+#define RX_QUEUE_MASK 255
#define RX_QUEUE_SIZE_LOG 8
-/*
- * TX Queue Flag Definitions
- */
-
-/* abort attempt if mgmt frame is rx'd */
-
-/* require CTS */
-
-/* use short preamble */
-#define DCT_FLAG_LONG_PREAMBLE 0x00
-#define DCT_FLAG_SHORT_PREAMBLE 0x04
-
-/* RTS/CTS first */
-
-/* don't calculate duration field */
-
-/* even if MAC WEP set (allows pre-encrypt) */
-#define IWL_
-/* overwrite TSF field */
-
-/* ACK rx is expected to follow */
-#define DCT_FLAG_ACK_REQD 0x80
-
-#define IWL_MB_DISASSOCIATE_THRESHOLD_DEFAULT 24
-#define IWL_MB_ROAMING_THRESHOLD_DEFAULT 8
-#define IWL_REAL_RATE_RX_PACKET_THRESHOLD 300
-
/* QoS definitions */
#define CW_MIN_OFDM 15
@@ -1124,28 +424,28 @@ struct statistics {
#define QOS_TX0_CW_MIN_OFDM CW_MIN_OFDM
#define QOS_TX1_CW_MIN_OFDM CW_MIN_OFDM
-#define QOS_TX2_CW_MIN_OFDM ( (CW_MIN_OFDM + 1) / 2 - 1 )
-#define QOS_TX3_CW_MIN_OFDM ( (CW_MIN_OFDM + 1) / 4 - 1 )
+#define QOS_TX2_CW_MIN_OFDM ((CW_MIN_OFDM + 1) / 2 - 1)
+#define QOS_TX3_CW_MIN_OFDM ((CW_MIN_OFDM + 1) / 4 - 1)
#define QOS_TX0_CW_MIN_CCK CW_MIN_CCK
#define QOS_TX1_CW_MIN_CCK CW_MIN_CCK
-#define QOS_TX2_CW_MIN_CCK ( (CW_MIN_CCK + 1) / 2 - 1 )
-#define QOS_TX3_CW_MIN_CCK ( (CW_MIN_CCK + 1) / 4 - 1 )
+#define QOS_TX2_CW_MIN_CCK ((CW_MIN_CCK + 1) / 2 - 1)
+#define QOS_TX3_CW_MIN_CCK ((CW_MIN_CCK + 1) / 4 - 1)
#define QOS_TX0_CW_MAX_OFDM CW_MAX_OFDM
#define QOS_TX1_CW_MAX_OFDM CW_MAX_OFDM
#define QOS_TX2_CW_MAX_OFDM CW_MIN_OFDM
-#define QOS_TX3_CW_MAX_OFDM ( (CW_MIN_OFDM + 1) / 2 - 1 )
+#define QOS_TX3_CW_MAX_OFDM ((CW_MIN_OFDM + 1) / 2 - 1)
#define QOS_TX0_CW_MAX_CCK CW_MAX_CCK
#define QOS_TX1_CW_MAX_CCK CW_MAX_CCK
#define QOS_TX2_CW_MAX_CCK CW_MIN_CCK
-#define QOS_TX3_CW_MAX_CCK ( (CW_MIN_CCK + 1) / 2 - 1 )
+#define QOS_TX3_CW_MAX_CCK ((CW_MIN_CCK + 1) / 2 - 1)
-#define QOS_TX0_AIFS (3)
-#define QOS_TX1_AIFS (7)
-#define QOS_TX2_AIFS (2)
-#define QOS_TX3_AIFS (2)
+#define QOS_TX0_AIFS 3
+#define QOS_TX1_AIFS 7
+#define QOS_TX2_AIFS 2
+#define QOS_TX3_AIFS 2
#define QOS_TX0_ACM 0
#define QOS_TX1_ACM 0
@@ -1210,17 +510,7 @@ struct statistics {
#define CTRL_QOS_NO_ACK (0x0020)
#define DCT_FLAG_EXT_QOS_ENABLED (0x10)
-#define IWL_TX_QUEUE_AC0 0
-#define IWL_TX_QUEUE_AC1 1
-#define IWL_TX_QUEUE_AC2 2
-#define IWL_TX_QUEUE_AC3 3
-#define IWL_TX_QUEUE_HCCA_1 5
-#define IWL_TX_QUEUE_HCCA_2 6
-
-#define U32_PAD(n) ((4-(n%4))%4)
-
-#define AC_BE_TID_MASK 0x9 /* TID 0 and 3 */
-#define AC_BK_TID_MASK 0x6 /* TID 1 and 2 */
+#define U32_PAD(n) ((4-(n))&0x3)
/*
* Generic queue structure
@@ -1232,7 +522,7 @@ struct statistics {
#define TFD_CTL_PAD_SET(n) (n<<28)
#define TFD_CTL_PAD_GET(ctl) (ctl>>28)
-#define TFD_TX_CMD_SLOTS 64
+#define TFD_TX_CMD_SLOTS 256
#define TFD_CMD_SLOTS 32
#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_cmd) - \
@@ -1242,305 +532,6 @@ struct statistics {
* RX related structures and functions
*/
#define RX_FREE_BUFFERS 64
-#if IWL == 4965
-#define RX_LOW_WATERMARK 25
-#else
#define RX_LOW_WATERMARK 8
-#endif
-
-#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
-#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
-#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
-
-#define IWL_CMD_FAILED_MSK 0x40
-
-struct iwl_cmd_header {
- u8 cmd;
- u8 flags;
- /* We have 15 LSB to use as we please (MSB indicates
- * a frame Rx'd from the HW). We encode the following
- * information into the sequence field:
- *
- * 0:7 index in fifo
- * 8:13 fifo selection
- * 14:14 bit indicating if this packet references the 'extra'
- * storage at the end of the memory queue
- * 15:15 (Rx indication)
- *
- */
- __le16 sequence;
-
- /* command data follows immediately */
- u8 data[0];
-} __attribute__ ((packed));
-
-/* Used for passing to driver number of successes and failures per rate */
-struct rate_histogram {
- union {
- __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
- __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
- __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
- } success;
- union {
- __le32 a[SUP_RATE_11A_MAX_NUM_CHANNELS];
- __le32 b[SUP_RATE_11B_MAX_NUM_CHANNELS];
- __le32 g[SUP_RATE_11G_MAX_NUM_CHANNELS];
- } failed;
-} __attribute__ ((packed));
-
-/* statistics command response */
-
-struct statistics_rx_phy {
- __le32 ina_cnt;
- __le32 fina_cnt;
- __le32 plcp_err;
- __le32 crc32_err;
- __le32 overrun_err;
- __le32 early_overrun_err;
- __le32 crc32_good;
- __le32 false_alarm_cnt;
- __le32 fina_sync_err_cnt;
- __le32 sfd_timeout;
- __le32 fina_timeout;
- __le32 unresponded_rts;
- __le32 rxe_frame_limit_overrun;
- __le32 sent_ack_cnt;
- __le32 sent_cts_cnt;
-#if IWL == 4965
- __le32 sent_ba_rsp_cnt;
- __le32 dsp_self_kill;
- __le32 mh_format_err;
- __le32 re_acq_main_rssi_sum;
- __le32 reserved3;
-#endif
-} __attribute__ ((packed));
-
-#if IWL == 4965
-struct statistics_rx_ht_phy {
- __le32 plcp_err;
- __le32 overrun_err;
- __le32 early_overrun_err;
- __le32 crc32_good;
- __le32 crc32_err;
- __le32 mh_format_err;
- __le32 agg_crc32_good;
- __le32 agg_mpdu_cnt;
- __le32 agg_cnt;
- __le32 reserved2;
-} __attribute__ ((packed));
-#endif
-
-struct statistics_rx_non_phy {
- __le32 bogus_cts; /* CTS received when not expecting CTS */
- __le32 bogus_ack; /* ACK received when not expecting ACK */
- __le32 non_bssid_frames; /* number of frames with BSSID that
- * doesn't belong to the STA BSSID */
- __le32 filtered_frames; /* count frames that were dumped in the
- * filtering process */
- __le32 non_channel_beacons; /* beacons with our bss id but not on
- * our serving channel */
-#if IWL == 4965
- __le32 channel_beacons; /* beacons with our bss id and in our
- * serving channel */
- __le32 num_missed_bcon; /* number of missed beacons */
- __le32 adc_rx_saturation_time; /* count in 0.8us units the time the
- * ADC was in saturation */
- __le32 ina_detection_search_time;/* total time (in 0.8us) searched
- * for INA */
- __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */
- __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */
- __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */
- __le32 interference_data_flag; /* flag for interference data
- * availability. 1 when data is
- * available. */
- __le32 channel_load; /* counts RX Enable time */
- __le32 dsp_false_alarms; /* DSP false alarm (both OFDM
- * and CCK) counter */
- __le32 beacon_rssi_a;
- __le32 beacon_rssi_b;
- __le32 beacon_rssi_c;
- __le32 beacon_energy_a;
- __le32 beacon_energy_b;
- __le32 beacon_energy_c;
-#endif
-} __attribute__ ((packed));
-
-struct statistics_rx {
- struct statistics_rx_phy ofdm;
- struct statistics_rx_phy cck;
- struct statistics_rx_non_phy general;
-#if IWL == 4965
- struct statistics_rx_ht_phy ofdm_ht;
-#endif
-} __attribute__ ((packed));
-
-#if IWL == 4965
-struct statistics_tx_non_phy_agg {
- __le32 ba_timeout;
- __le32 ba_reschedule_frames;
- __le32 scd_query_agg_frame_cnt;
- __le32 scd_query_no_agg;
- __le32 scd_query_agg;
- __le32 scd_query_mismatch;
- __le32 frame_not_ready;
- __le32 underrun;
- __le32 bt_prio_kill;
- __le32 rx_ba_rsp_cnt;
- __le32 reserved2;
- __le32 reserved3;
-} __attribute__ ((packed));
-#endif
-
-struct statistics_tx {
- __le32 preamble_cnt;
- __le32 rx_detected_cnt;
- __le32 bt_prio_defer_cnt;
- __le32 bt_prio_kill_cnt;
- __le32 few_bytes_cnt;
- __le32 cts_timeout;
- __le32 ack_timeout;
- __le32 expected_ack_cnt;
- __le32 actual_ack_cnt;
-#if IWL == 4965
- __le32 dump_msdu_cnt;
- __le32 burst_abort_next_frame_mismatch_cnt;
- __le32 burst_abort_missing_next_frame_cnt;
- __le32 cts_timeout_collision;
- __le32 ack_or_ba_timeout_collision;
- struct statistics_tx_non_phy_agg agg;
-#endif
-} __attribute__ ((packed));
-
-struct statistics_dbg {
- __le32 burst_check;
- __le32 burst_count;
- __le32 reserved[4];
-} __attribute__ ((packed));
-
-struct statistics_div {
- __le32 tx_on_a;
- __le32 tx_on_b;
- __le32 exec_time;
- __le32 probe_time;
-#if IWL == 4965
- __le32 reserved1;
- __le32 reserved2;
-#endif
-} __attribute__ ((packed));
-
-struct statistics_general {
- __le32 temperature;
-#if IWL == 4965
- __le32 temperature_m;
-#endif
- struct statistics_dbg dbg;
- __le32 sleep_time;
- __le32 slots_out;
- __le32 slots_idle;
- __le32 ttl_timestamp;
- struct statistics_div div;
-#if IWL == 4965
- __le32 rx_enable_counter;
- __le32 reserved1;
- __le32 reserved2;
- __le32 reserved3;
-#endif
-} __attribute__ ((packed));
-
-struct iwl_notif_statistics {
- __le32 flag;
- struct statistics_rx rx;
- struct statistics_tx tx;
- struct statistics_general general;
-} __attribute__ ((packed));
-
-struct iwl_rx_packet {
- __le32 len;
- struct iwl_cmd_header hdr;
- union {
- struct iwl_alive_resp alive_frame;
- struct iwl_rx_frame rx_frame;
- struct iwl_tx_resp tx_resp;
- struct iwl_spectrum_notification spectrum_notif;
- struct iwl_csa_notification csa_notif;
- struct iwl_error_resp err_resp;
- struct iwl_card_state_notif card_state_notif;
- struct iwl_beacon_notif beacon_status;
- struct iwl_add_sta_resp add_sta;
- struct iwl_sleep_notification sleep_notif;
- struct iwl_spectrum_resp spectrum;
- struct iwl_notif_statistics stats;
-#if IWL == 4965
- struct iwl_compressed_ba_resp compressed_ba;
- struct iwl_missed_beacon_notif missed_beacon;
-#endif
- __le32 status;
- u8 raw[0];
- } u;
-} __attribute__ ((packed));
-
-#define IWL_RX_FRAME_SIZE (4 + sizeof(struct iwl_rx_frame))
-
-struct iwl_multicast_addr {
- u8 num_of_multicast_addresses;
- u8 reserved[3];
- u8 mac1[6];
- u8 mac2[6];
- u8 mac3[6];
- u8 mac4[6];
-} __attribute__ ((packed));
-
-struct iwl_tgi_tx_key {
- u8 key_id;
- u8 security_type;
- u8 station_index;
- u8 flags;
- u8 key[16];
- __le32 tx_counter[2];
-} __attribute__ ((packed));
-
-struct iwl_associate {
- u8 channel;
- u8 auth; /* & 0xf0 = auth_type, & 0xf0 = auth_key*/
- u8 assoc_type;
- u8 reserved;
- __le16 policy_support;
- u8 preamble_length;
- u8 ieee_mode;
- u8 bssid[ETH_ALEN];
- __le32 assoc_tsf_msw;
- __le32 assoc_tsf_lsw;
- __le16 capability;
- __le16 listen_interval;
- __le16 beacon_interval;
- u8 dest[ETH_ALEN];
- __le16 atim_window;
- u8 smr;
- u8 reserved1;
- __le16 reserved2;
- __le16 assoc_id;
- u8 erp_value;
-} __attribute__ ((packed));
-
-#define IWL_SUPPORTED_RATES_IE_LEN 8
-
-struct iwl_supported_rates {
- u8 ieee_mode;
- u8 num_rates;
- u8 purpose;
- u8 reserved;
- u8 supported_rates[IWL_MAX_RATES];
-} __attribute__ ((packed));
-
-struct iwl_channel_tx_power {
- u8 channel_number;
- s8 tx_power;
-} __attribute__ ((packed));
-
-#if IWL == 3945
-#include "iwl-3945-hw.h"
-#elif IWL == 4965
-#include "iwl-4965-hw.h"
-#endif
#endif /* __iwlwifi_hw_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl-io.h b/drivers/net/wireless/iwlwifi/iwl-io.h
index 984060d..8a8b96f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.h
+++ b/drivers/net/wireless/iwlwifi/iwl-io.h
@@ -60,32 +60,29 @@
*
*/
-#define _iwl_write32(ipw, ofs, val) writel((val), (ipw)->hw_base + (ofs))
-static inline void __iwl_write32(const char *f, u32 l, struct iwl_priv *ipw,
+#define _iwl_write32(iwl, ofs, val) writel((val), (iwl)->hw_base + (ofs))
+#ifdef CONFIG_IWLWIFI_DEBUG
+static inline void __iwl_write32(const char *f, u32 l, struct iwl_priv *iwl,
u32 ofs, u32 val)
{
IWL_DEBUG_IO("write_direct32(0x%08X, 0x%08X) - %s %d\n",
(u32) (ofs), (u32) (val), f, l);
- _iwl_write32(ipw, ofs, val);
+ _iwl_write32(iwl, ofs, val);
}
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-#define iwl_write32(ipw, ofs, val) \
- __iwl_write32(__FILE__, __LINE__, ipw, ofs, val)
+#define iwl_write32(iwl, ofs, val) \
+ __iwl_write32(__FILE__, __LINE__, iwl, ofs, val)
#else
-#define iwl_write32(ipw, ofs, val) _iwl_write32(ipw, ofs, val)
+#define iwl_write32(iwl, ofs, val) _iwl_write32(iwl, ofs, val)
#endif
-#define _iwl_read32(ipw, ofs) readl((ipw)->hw_base + (ofs))
-static inline u32 __iwl_read32(char *f, u32 l, struct iwl_priv *ipw, u32 ofs)
+#define _iwl_read32(iwl, ofs) readl((iwl)->hw_base + (ofs))
+#ifdef CONFIG_IWLWIFI_DEBUG
+static inline u32 __iwl_read32(char *f, u32 l, struct iwl_priv *iwl, u32 ofs)
{
IWL_DEBUG_IO("read_direct32(0x%08X) - %s %d\n", ofs, f, l);
- return _iwl_read32(ipw, ofs);
+ return _iwl_read32(iwl, ofs);
}
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-#define iwl_read32(ipw, ofs) \
- __iwl_read32(__FILE__, __LINE__, ipw, ofs)
+#define iwl_read32(iwl, ofs) __iwl_read32(__FILE__, __LINE__, iwl, ofs)
#else
#define iwl_read32(p, o) _iwl_read32(p, o)
#endif
@@ -104,6 +101,7 @@ static inline int _iwl_poll_bit(struct iwl_priv *priv, u32 addr,
return -ETIMEDOUT;
}
+#ifdef CONFIG_IWLWIFI_DEBUG
static inline int __iwl_poll_bit(const char *f, u32 l,
struct iwl_priv *priv, u32 addr,
u32 bits, u32 mask, int timeout)
@@ -119,10 +117,8 @@ static inline int __iwl_poll_bit(const char *f, u32 l,
addr, bits, mask, rc, f, l);
return rc;
}
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-#define iwl_poll_bit(ipw, addr, bits, mask, timeout) \
- __iwl_poll_bit(__FILE__, __LINE__, ipw, addr, bits, mask, timeout)
+#define iwl_poll_bit(iwl, addr, bits, mask, timeout) \
+ __iwl_poll_bit(__FILE__, __LINE__, iwl, addr, bits, mask, timeout)
#else
#define iwl_poll_bit(p, a, b, m, t) _iwl_poll_bit(p, a, b, m, t)
#endif
@@ -131,6 +127,7 @@ static inline void _iwl_set_bit(struct iwl_priv *priv, u32 reg, u32 mask)
{
_iwl_write32(priv, reg, _iwl_read32(priv, reg) | mask);
}
+#ifdef CONFIG_IWLWIFI_DEBUG
static inline void __iwl_set_bit(const char *f, u32 l,
struct iwl_priv *priv, u32 reg, u32 mask)
{
@@ -138,8 +135,6 @@ static inline void __iwl_set_bit(const char *f, u32 l,
IWL_DEBUG_IO("set_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
_iwl_write32(priv, reg, val);
}
-
-#ifdef CONFIG_IWLWIFI_DEBUG
#define iwl_set_bit(p, r, m) __iwl_set_bit(__FILE__, __LINE__, p, r, m)
#else
#define iwl_set_bit(p, r, m) _iwl_set_bit(p, r, m)
@@ -149,6 +144,7 @@ static inline void _iwl_clear_bit(struct iwl_priv *priv, u32 reg, u32 mask)
{
_iwl_write32(priv, reg, _iwl_read32(priv, reg) & ~mask);
}
+#ifdef CONFIG_IWLWIFI_DEBUG
static inline void __iwl_clear_bit(const char *f, u32 l,
struct iwl_priv *priv, u32 reg, u32 mask)
{
@@ -156,8 +152,6 @@ static inline void __iwl_clear_bit(const char *f, u32 l,
IWL_DEBUG_IO("clear_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
_iwl_write32(priv, reg, val);
}
-
-#ifdef CONFIG_IWLWIFI_DEBUG
#define iwl_clear_bit(p, r, m) __iwl_clear_bit(__FILE__, __LINE__, p, r, m)
#else
#define iwl_clear_bit(p, r, m) _iwl_clear_bit(p, r, m)
@@ -168,7 +162,12 @@ static inline int _iwl_grab_restricted_access(struct iwl_priv *priv)
int rc;
u32 gp_ctl;
- if (priv->status & STATUS_RF_KILL_MASK) {
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (atomic_read(&priv->restrict_refcnt))
+ return 0;
+#endif
+ if (test_bit(STATUS_RF_KILL_HW, &priv->status) ||
+ test_bit(STATUS_RF_KILL_SW, &priv->status)) {
IWL_WARNING("WARNING: Requesting MAC access during RFKILL "
"wakes up NIC\n");
@@ -178,10 +177,9 @@ static inline int _iwl_grab_restricted_access(struct iwl_priv *priv)
IWL_DEBUG_RF_KILL("Wait for complete power-down, "
"gpctl = 0x%08x\n", gp_ctl);
mdelay(10);
- } else {
+ } else
IWL_DEBUG_RF_KILL("power-down complete, "
- "gpctl = 0x%08x\n", gp_ctl);
- }
+ "gpctl = 0x%08x\n", gp_ctl);
}
/* this bit wakes up the NIC */
@@ -195,23 +193,24 @@ static inline int _iwl_grab_restricted_access(struct iwl_priv *priv)
return -EIO;
}
- priv->status |= STATUS_RESTRICTED;
-
+#ifdef CONFIG_IWLWIFI_DEBUG
+ atomic_inc(&priv->restrict_refcnt);
+#endif
return 0;
}
+#ifdef CONFIG_IWLWIFI_DEBUG
static inline int __iwl_grab_restricted_access(const char *f, u32 l,
struct iwl_priv *priv)
{
- if (priv->status & STATUS_RESTRICTED)
- IWL_ERROR
- ("Grabbing access while already held at line %d.\n", l);
+ if (atomic_read(&priv->restrict_refcnt))
+ IWL_DEBUG_INFO("Grabbing access while already held at "
+ "line %d.\n", l);
IWL_DEBUG_IO("grabbing restricted access - %s %d\n", f, l);
return _iwl_grab_restricted_access(priv);
}
-#ifdef CONFIG_IWLWIFI_DEBUG
#define iwl_grab_restricted_access(priv) \
__iwl_grab_restricted_access(__FILE__, __LINE__, priv)
#else
@@ -219,75 +218,76 @@ static inline int __iwl_grab_restricted_access(const char *f, u32 l,
_iwl_grab_restricted_access(priv)
#endif
-static inline void _iwl_release_restricted_access(struct iwl_priv
- *priv)
+static inline void _iwl_release_restricted_access(struct iwl_priv *priv)
{
- _iwl_clear_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
-
- priv->status &= ~STATUS_RESTRICTED;
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (atomic_dec_and_test(&priv->restrict_refcnt))
+#endif
+ _iwl_clear_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
}
-
+#ifdef CONFIG_IWLWIFI_DEBUG
static inline void __iwl_release_restricted_access(const char *f, u32 l,
struct iwl_priv *priv)
{
- if (!(priv->status & STATUS_RESTRICTED))
- IWL_ERROR
- ("Release unheld restricted access at line %d.\n", l);
+ if (atomic_read(&priv->restrict_refcnt) <= 0)
+ IWL_ERROR("Release unheld restricted access at line %d.\n", l);
IWL_DEBUG_IO("releasing restricted access - %s %d\n", f, l);
_iwl_release_restricted_access(priv);
}
-
-#ifdef CONFIG_IWLWIFI_DEBUG
#define iwl_release_restricted_access(priv) \
__iwl_release_restricted_access(__FILE__, __LINE__, priv)
#else
#define iwl_release_restricted_access(priv) \
_iwl_release_restricted_access(priv)
#endif
+
static inline u32 _iwl_read_restricted(struct iwl_priv *priv, u32 reg)
{
return _iwl_read32(priv, reg);
}
+#ifdef CONFIG_IWLWIFI_DEBUG
static inline u32 __iwl_read_restricted(const char *f, u32 l,
struct iwl_priv *priv, u32 reg)
{
u32 value = _iwl_read_restricted(priv, reg);
- if (!(priv->status & STATUS_RESTRICTED))
+ if (!atomic_read(&priv->restrict_refcnt))
IWL_ERROR("Unrestricted access from %s %d\n", f, l);
IWL_DEBUG_IO("read_restricted(0x%4X) = 0x%08x - %s %d \n", reg, value,
f, l);
return value;
}
-
-#ifdef CONFIG_IWLWIFI_DEBUG
#define iwl_read_restricted(priv, reg) \
__iwl_read_restricted(__FILE__, __LINE__, priv, reg)
#else
-#define iwl_read_restricted(p, r) _iwl_read_restricted(p, r)
+#define iwl_read_restricted _iwl_read_restricted
#endif
-static void inline _iwl_write_restricted(struct iwl_priv *priv,
+static inline void _iwl_write_restricted(struct iwl_priv *priv,
u32 reg, u32 value)
{
_iwl_write32(priv, reg, value);
}
+#ifdef CONFIG_IWLWIFI_DEBUG
static void __iwl_write_restricted(u32 line,
struct iwl_priv *priv, u32 reg, u32 value)
{
- if (!(priv->status & STATUS_RESTRICTED))
+ if (!atomic_read(&priv->restrict_refcnt))
IWL_ERROR("Unrestricted access from line %d\n", line);
_iwl_write_restricted(priv, reg, value);
}
-
#define iwl_write_restricted(priv, reg, value) \
__iwl_write_restricted(__LINE__, priv, reg, value)
+#else
+#define iwl_write_restricted _iwl_write_restricted
+#endif
static inline void iwl_write_buffer_restricted(struct iwl_priv *priv,
- u32 reg, u32 len, u32 * values)
+ u32 reg, u32 len, u32 *values)
{
u32 count = sizeof(u32);
+
if ((priv != NULL) && (values != NULL)) {
for (; 0 < len; len -= count, reg += count, values++)
_iwl_write_restricted(priv, reg, *values);
@@ -308,27 +308,26 @@ static inline int _iwl_poll_restricted_bit(struct iwl_priv *priv,
return -ETIMEDOUT;
}
+
+#ifdef CONFIG_IWLWIFI_DEBUG
static inline int __iwl_poll_restricted_bit(const char *f, u32 l,
struct iwl_priv *priv,
u32 addr, u32 mask, int timeout)
{
int rc = _iwl_poll_restricted_bit(priv, addr, mask, timeout);
+
if (unlikely(rc == -ETIMEDOUT))
- IWL_DEBUG_IO
- ("poll_restricted_bit(0x%08X, 0x%08X) - timedout - %s %d\n",
- addr, mask, f, l);
+ IWL_DEBUG_IO("poll_restricted_bit(0x%08X, 0x%08X) - "
+ "timedout - %s %d\n", addr, mask, f, l);
else
- IWL_DEBUG_IO
- ("poll_restricted_bit(0x%08X, 0x%08X) = 0x%08X - %s %d\n",
- addr, mask, rc, f, l);
+ IWL_DEBUG_IO("poll_restricted_bit(0x%08X, 0x%08X) = 0x%08X "
+ "- %s %d\n", addr, mask, rc, f, l);
return rc;
}
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-#define iwl_poll_restricted_bit(ipw, addr, mask, timeout) \
- __iwl_poll_restricted_bit(__FILE__, __LINE__, ipw, addr, mask, timeout)
+#define iwl_poll_restricted_bit(iwl, addr, mask, timeout) \
+ __iwl_poll_restricted_bit(__FILE__, __LINE__, iwl, addr, mask, timeout)
#else
-#define iwl_poll_restricted_bit(p, a, m, t) _iwl_poll_restricted_bit(p, a, m, t)
+#define iwl_poll_restricted_bit _iwl_poll_restricted_bit
#endif
static inline u32 _iwl_read_restricted_reg(struct iwl_priv *priv, u32 reg)
@@ -336,16 +335,20 @@ static inline u32 _iwl_read_restricted_reg(struct iwl_priv *priv, u32 reg)
_iwl_write_restricted(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
return _iwl_read_restricted(priv, HBUS_TARG_PRPH_RDAT);
}
+#ifdef CONFIG_IWLWIFI_DEBUG
static inline u32 __iwl_read_restricted_reg(u32 line,
struct iwl_priv *priv, u32 reg)
{
- if (!(priv->status & STATUS_RESTRICTED))
+ if (!atomic_read(&priv->restrict_refcnt))
IWL_ERROR("Unrestricted access from line %d\n", line);
return _iwl_read_restricted_reg(priv, reg);
}
#define iwl_read_restricted_reg(priv, reg) \
__iwl_read_restricted_reg(__LINE__, priv, reg)
+#else
+#define iwl_read_restricted_reg _iwl_read_restricted_reg
+#endif
static inline void _iwl_write_restricted_reg(struct iwl_priv *priv,
u32 addr, u32 val)
@@ -354,46 +357,56 @@ static inline void _iwl_write_restricted_reg(struct iwl_priv *priv,
((addr & 0x0000FFFF) | (3 << 24)));
_iwl_write_restricted(priv, HBUS_TARG_PRPH_WDAT, val);
}
+#ifdef CONFIG_IWLWIFI_DEBUG
static inline void __iwl_write_restricted_reg(u32 line,
struct iwl_priv *priv,
u32 addr, u32 val)
{
- if (!(priv->status & STATUS_RESTRICTED))
+ if (!atomic_read(&priv->restrict_refcnt))
IWL_ERROR("Unrestricted access from line %d\n", line);
_iwl_write_restricted_reg(priv, addr, val);
}
#define iwl_write_restricted_reg(priv, addr, val) \
__iwl_write_restricted_reg(__LINE__, priv, addr, val);
+#else
+#define iwl_write_restricted_reg _iwl_write_restricted_reg
+#endif
#define _iwl_set_bits_restricted_reg(priv, reg, mask) \
_iwl_write_restricted_reg(priv, reg, \
(_iwl_read_restricted_reg(priv, reg) | mask))
+#ifdef CONFIG_IWLWIFI_DEBUG
static inline void __iwl_set_bits_restricted_reg(u32 line, struct iwl_priv
*priv, u32 reg, u32 mask)
{
- if (!(priv->status & STATUS_RESTRICTED))
+ if (!atomic_read(&priv->restrict_refcnt))
IWL_ERROR("Unrestricted access from line %d\n", line);
_iwl_set_bits_restricted_reg(priv, reg, mask);
}
-
#define iwl_set_bits_restricted_reg(priv, reg, mask) \
__iwl_set_bits_restricted_reg(__LINE__, priv, reg, mask)
+#else
+#define iwl_set_bits_restricted_reg _iwl_set_bits_restricted_reg
+#endif
#define _iwl_set_bits_mask_restricted_reg(priv, reg, bits, mask) \
_iwl_write_restricted_reg( \
priv, reg, ((_iwl_read_restricted_reg(priv, reg) & mask) | bits))
-static void inline __iwl_set_bits_mask_restricted_reg(u32 line, struct iwl_priv
- *priv, u32 reg,
- u32 bits, u32 mask)
+#ifdef CONFIG_IWLWIFI_DEBUG
+static inline void __iwl_set_bits_mask_restricted_reg(u32 line,
+ struct iwl_priv *priv, u32 reg, u32 bits, u32 mask)
{
- if (!(priv->status & STATUS_RESTRICTED))
+ if (!atomic_read(&priv->restrict_refcnt))
IWL_ERROR("Unrestricted access from line %d\n", line);
_iwl_set_bits_mask_restricted_reg(priv, reg, bits, mask);
}
#define iwl_set_bits_mask_restricted_reg(priv, reg, bits, mask) \
__iwl_set_bits_mask_restricted_reg(__LINE__, priv, reg, bits, mask)
+#else
+#define iwl_set_bits_mask_restricted_reg _iwl_set_bits_mask_restricted_reg
+#endif
static inline void iwl_clear_bits_restricted_reg(struct iwl_priv
*priv, u32 reg, u32 mask)
@@ -415,18 +428,16 @@ static inline void iwl_write_restricted_mem(struct iwl_priv *priv, u32 addr,
iwl_write_restricted(priv, HBUS_TARG_MEM_WDAT, val);
}
-static inline void iwl_write_restricted_mem_buffer(struct iwl_priv *priv,
- u32 addr, u32 len,
- u32 * values)
+static inline void iwl_write_restricted_mems(struct iwl_priv *priv, u32 addr,
+ u32 len, u32 *values)
{
iwl_write_restricted(priv, HBUS_TARG_MEM_WADDR, addr);
for (; 0 < len; len -= sizeof(u32), values++)
iwl_write_restricted(priv, HBUS_TARG_MEM_WDAT, *values);
}
-static inline void iwl_write_restricted_reg_buffer(struct iwl_priv *priv,
- u32 reg, u32 len,
- u8 * values)
+static inline void iwl_write_restricted_regs(struct iwl_priv *priv, u32 reg,
+ u32 len, u8 *values)
{
u32 reg_offset = reg;
u32 aligment = reg & 0x3;
@@ -456,19 +467,4 @@ static inline void iwl_write_restricted_reg_buffer(struct iwl_priv *priv,
_iwl_write_restricted_reg(priv, reg_offset, *((u32 *) values));
}
-/**
- * iwl_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer pointer.
- *
- * NOTE: This function has 3945 and 4965 specific code paths in it.
- */
-static inline u32 iwl_dma_addr2rbd_ptr(struct iwl_priv *priv,
- dma_addr_t dma_addr)
-{
-#if IWL == 3945
- return cpu_to_le32((u32)dma_addr);
-#elif IWL == 4965
- return cpu_to_le32((u32)(dma_addr >> 8));
-#endif
-}
-
#endif
diff --git a/drivers/net/wireless/iwlwifi/iwl-priv.h b/drivers/net/wireless/iwlwifi/iwl-priv.h
index 847ef5a..7da1d4d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-priv.h
+++ b/drivers/net/wireless/iwlwifi/iwl-priv.h
@@ -52,8 +52,8 @@ struct iwl_priv {
u8 phymode;
int alloc_rxb_skb;
- void (*rx_handlers[REPLY_MAX])(struct iwl_priv * priv,
- struct iwl_rx_mem_buffer * rxb);
+ void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
+ struct iwl_rx_mem_buffer *rxb);
const struct ieee80211_hw_mode *modes;
@@ -62,6 +62,8 @@ struct iwl_priv {
struct iwl_spectrum_notification measure_report;
u8 measurement_status;
#endif
+ /* ucode beacon time */
+ u32 ucode_beacon_time;
/* we allocate array of iwl_channel_info for NIC's valid channels.
* Access via channel # using indirect index array */
@@ -89,7 +91,8 @@ struct iwl_priv {
u8 only_active_channel;
/* spinlock */
- spinlock_t lock;
+ spinlock_t lock; /* protect general shared data */
+ spinlock_t hcmd_lock; /* protect hcmd */
struct mutex mutex;
/* basic pci-network driver stuff */
@@ -97,7 +100,6 @@ struct iwl_priv {
/* pci hardware address support */
void __iomem *hw_base;
- unsigned long hw_len;
/* uCode images, save to reload in case of failure */
struct fw_image_desc ucode_code; /* runtime inst */
@@ -174,17 +176,16 @@ struct iwl_priv {
struct iwl_rx_queue rxq;
struct iwl_tx_queue txq[IWL_MAX_NUM_QUEUES];
#if IWL == 4965
+ unsigned long txq_ctx_active_msk;
struct iwl_kw kw; /* keep warm address */
u32 scd_base_addr; /* scheduler sram base address */
#endif
- u32 status;
+ unsigned long status;
u32 config;
- int quality;
- int last_rx_rssi;
- int last_rx_noise;
- int last_rx_snr;
+ int last_rx_rssi; /* From Rx packet statisitics */
+ int last_rx_noise; /* From beacon statistics */
struct iwl_power_mgr power_data;
@@ -204,7 +205,7 @@ struct iwl_priv {
/*station table variables */
spinlock_t sta_lock;
- u8 num_stations;
+ int num_stations;
struct iwl_station_entry stations[IWL_STATION_COUNT];
/* Indication if ieee80211_ops->open has been called */
@@ -245,6 +246,10 @@ struct iwl_priv {
u16 assoc_capability;
u8 ps_mode;
+#ifdef CONFIG_IWLWIFI_QOS
+ struct iwl_qos_info qos_data;
+#endif /*CONFIG_IWLWIFI_QOS */
+
struct workqueue_struct *workqueue;
struct work_struct up;
@@ -258,6 +263,7 @@ struct iwl_priv {
struct work_struct auth_work;
struct work_struct report_work;
struct work_struct request_scan;
+ struct work_struct beacon_update;
struct tasklet_struct irq_tasklet;
@@ -278,10 +284,11 @@ struct iwl_priv {
u32 pm_state[16];
#endif
+#ifdef CONFIG_IWLWIFI_DEBUG
/* debugging info */
u32 framecnt_to_us;
-
-
+ atomic_t restrict_refcnt;
+#endif
#if IWL == 4965
struct work_struct txpower_work;
diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h
new file mode 100644
index 0000000..4ba1216
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h
@@ -0,0 +1,286 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2005 - 2007 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#ifndef __iwl_prph_h__
+#define __iwl_prph_h__
+
+/*
+ * Registers in this file are internal, not PCI bus memory mapped.
+ * Driver accesses these via HBUS_TARG_PRPH_* registers.
+ */
+#define PRPH_BASE (0x00000)
+#define PRPH_END (0xFFFFF)
+
+/* APMG (power management) constants */
+#define APMG_BASE (PRPH_BASE + 0x3000)
+#define APMG_CLK_CTRL_REG (APMG_BASE + 0x0000)
+#define APMG_CLK_EN_REG (APMG_BASE + 0x0004)
+#define APMG_CLK_DIS_REG (APMG_BASE + 0x0008)
+#define APMG_PS_CTRL_REG (APMG_BASE + 0x000c)
+#define APMG_PCIDEV_STT_REG (APMG_BASE + 0x0010)
+#define APMG_RFKILL_REG (APMG_BASE + 0x0014)
+#define APMG_RTC_INT_STT_REG (APMG_BASE + 0x001c)
+#define APMG_RTC_INT_MSK_REG (APMG_BASE + 0x0020)
+
+#define APMG_CLK_VAL_DMA_CLK_RQT (0x00000200)
+#define APMG_CLK_VAL_BSM_CLK_RQT (0x00000800)
+
+#define APMG_PS_CTRL_VAL_RESET_REQ (0x04000000)
+
+#define APMG_PCIDEV_STT_VAL_L1_ACT_DIS (0x00000800)
+
+#define APMG_PS_CTRL_MSK_PWR_SRC (0x03000000)
+#define APMG_PS_CTRL_VAL_PWR_SRC_VMAIN (0x00000000)
+#define APMG_PS_CTRL_VAL_PWR_SRC_VAUX (0x01000000)
+
+
+/**
+ * BSM (Bootstrap State Machine)
+ *
+ * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
+ * in special SRAM that does not power down when the embedded control
+ * processor is sleeping (e.g. for periodic power-saving shutdowns of radio).
+ *
+ * When powering back up after sleeps (or during initial uCode load), the BSM
+ * internally loads the short bootstrap program from the special SRAM into the
+ * embedded processor's instruction SRAM, and starts the processor so it runs
+ * the bootstrap program.
+ *
+ * This bootstrap program loads (via PCI busmaster DMA) instructions and data
+ * images for a uCode program from host DRAM locations. The host driver
+ * indicates DRAM locations and sizes for instruction and data images via the
+ * four BSM_DRAM_* registers. Once the bootstrap program loads the new program,
+ * the new program starts automatically.
+ *
+ * The uCode used for open-source drivers includes two programs:
+ *
+ * 1) Initialization -- performs hardware calibration and sets up some
+ * internal data, then notifies host via "initialize alive" notification
+ * (struct iwl_init_alive_resp) that it has completed all of its work.
+ * After signal from host, it then loads and starts the runtime program.
+ * The initialization program must be used when initially setting up the
+ * NIC after loading the driver.
+ *
+ * 2) Runtime/Protocol -- performs all normal runtime operations. This
+ * notifies host via "alive" notification (struct iwl_alive_resp) that it
+ * is ready to be used.
+ *
+ * When initializing the NIC, the host driver does the following procedure:
+ *
+ * 1) Load bootstrap program (instructions only, no data image for bootstrap)
+ * into bootstrap memory. Use dword writes starting at BSM_SRAM_LOWER_BOUND
+ *
+ * 2) Point (via BSM_DRAM_*) to the "initialize" uCode data and instruction
+ * images in host DRAM.
+ *
+ * 3) Set up BSM to copy from BSM SRAM into uCode instruction SRAM when asked:
+ * BSM_WR_MEM_SRC_REG = 0
+ * BSM_WR_MEM_DST_REG = RTC_INST_LOWER_BOUND
+ * BSM_WR_MEM_DWCOUNT_REG = # dwords in bootstrap instruction image
+ *
+ * 4) Load bootstrap into instruction SRAM:
+ * BSM_WR_CTRL_REG = BSM_WR_CTRL_REG_BIT_START
+ *
+ * 5) Wait for load completion:
+ * Poll BSM_WR_CTRL_REG for BSM_WR_CTRL_REG_BIT_START = 0
+ *
+ * 6) Enable future boot loads whenever NIC's power management triggers it:
+ * BSM_WR_CTRL_REG = BSM_WR_CTRL_REG_BIT_START_EN
+ *
+ * 7) Start the NIC by removing all reset bits:
+ * CSR_RESET = 0
+ *
+ * The bootstrap uCode (already in instruction SRAM) loads initialization
+ * uCode. Initialization uCode performs data initialization, sends
+ * "initialize alive" notification to host, and waits for a signal from
+ * host to load runtime code.
+ *
+ * 4) Point (via BSM_DRAM_*) to the "runtime" uCode data and instruction
+ * images in host DRAM. The last register loaded must be the instruction
+ * bytecount register ("1" in MSbit tells initialization uCode to load
+ * the runtime uCode):
+ * BSM_DRAM_INST_BYTECOUNT_REG = bytecount | BSM_DRAM_INST_LOAD
+ *
+ * 5) Wait for "alive" notification, then issue normal runtime commands.
+ *
+ * Data caching during power-downs:
+ *
+ * Just before the embedded controller powers down (e.g for automatic
+ * power-saving modes, or for RFKILL), uCode stores (via PCI busmaster DMA)
+ * a current snapshot of the embedded processor's data SRAM into host DRAM.
+ * This caches the data while the embedded processor's memory is powered down.
+ * Location and size are controlled by BSM_DRAM_DATA_* registers.
+ *
+ * NOTE: Instruction SRAM does not need to be saved, since that doesn't
+ * change during operation; the original image (from uCode distribution
+ * file) can be used for reload.
+ *
+ * When powering back up, the BSM loads the bootstrap program. Bootstrap looks
+ * at the BSM_DRAM_* registers, which now point to the runtime instruction
+ * image and the cached (modified) runtime data (*not* the initialization
+ * uCode). Bootstrap reloads these runtime images into SRAM, and restarts the
+ * uCode from where it left off before the power-down.
+ *
+ * NOTE: Initialization uCode does *not* run as part of the save/restore
+ * procedure.
+ *
+ * This save/restore method is mostly for autonomous power management during
+ * normal operation (result of POWER_TABLE_CMD). Platform suspend/resume and
+ * RFKILL should use complete restarts (with total re-initialization) of uCode,
+ * allowing total shutdown (including BSM memory).
+ *
+ * Note that, during normal operation, the host DRAM that held the initial
+ * startup data for the runtime code is now being used as a backup data cache
+ * for modified data! If you need to completely re-initialize the NIC, make
+ * sure that you use the runtime data image from the uCode distribution file,
+ * not the modified/saved runtime data. You may want to store a separate
+ * "clean" runtime data image in DRAM to avoid disk reads of distribution file.
+ */
+
+/* BSM bit fields */
+#define BSM_WR_CTRL_REG_BIT_START (0x80000000) /* start boot load now */
+#define BSM_WR_CTRL_REG_BIT_START_EN (0x40000000) /* enable boot after pwrup*/
+#define BSM_DRAM_INST_LOAD (0x80000000) /* start program load now */
+
+/* BSM addresses */
+#define BSM_BASE (PRPH_BASE + 0x3400)
+#define BSM_END (PRPH_BASE + 0x3800)
+
+#define BSM_WR_CTRL_REG (BSM_BASE + 0x000) /* ctl and status */
+#define BSM_WR_MEM_SRC_REG (BSM_BASE + 0x004) /* source in BSM mem */
+#define BSM_WR_MEM_DST_REG (BSM_BASE + 0x008) /* dest in SRAM mem */
+#define BSM_WR_DWCOUNT_REG (BSM_BASE + 0x00C) /* bytes */
+#define BSM_WR_STATUS_REG (BSM_BASE + 0x010) /* bit 0: 1 == done */
+
+/*
+ * Pointers and size regs for bootstrap load and data SRAM save/restore.
+ * NOTE: 3945 pointers use bits 31:0 of DRAM address.
+ * 4965 pointers use bits 35:4 of DRAM address.
+ */
+#define BSM_DRAM_INST_PTR_REG (BSM_BASE + 0x090)
+#define BSM_DRAM_INST_BYTECOUNT_REG (BSM_BASE + 0x094)
+#define BSM_DRAM_DATA_PTR_REG (BSM_BASE + 0x098)
+#define BSM_DRAM_DATA_BYTECOUNT_REG (BSM_BASE + 0x09C)
+
+/*
+ * BSM special memory, stays powered on during power-save sleeps.
+ * Read/write, address range from LOWER_BOUND to (LOWER_BOUND + SIZE -1)
+ */
+#define BSM_SRAM_LOWER_BOUND (PRPH_BASE + 0x3800)
+#define BSM_SRAM_SIZE (1024) /* bytes */
+
+
+/* 3945 Tx scheduler registers */
+#define ALM_SCD_BASE (PRPH_BASE + 0x2E00)
+#define ALM_SCD_MODE_REG (ALM_SCD_BASE + 0x000)
+#define ALM_SCD_ARASTAT_REG (ALM_SCD_BASE + 0x004)
+#define ALM_SCD_TXFACT_REG (ALM_SCD_BASE + 0x010)
+#define ALM_SCD_TXF4MF_REG (ALM_SCD_BASE + 0x014)
+#define ALM_SCD_TXF5MF_REG (ALM_SCD_BASE + 0x020)
+#define ALM_SCD_SBYP_MODE_1_REG (ALM_SCD_BASE + 0x02C)
+#define ALM_SCD_SBYP_MODE_2_REG (ALM_SCD_BASE + 0x030)
+
+/*
+ * 4965 Tx Scheduler registers.
+ * Details are documented in iwl-4965-hw.h
+ */
+#define KDR_SCD_BASE (PRPH_BASE + 0xa02c00)
+
+#define KDR_SCD_SRAM_BASE_ADDR (KDR_SCD_BASE + 0x0)
+#define KDR_SCD_EMPTY_BITS (KDR_SCD_BASE + 0x4)
+#define KDR_SCD_DRAM_BASE_ADDR (KDR_SCD_BASE + 0x10)
+#define KDR_SCD_AIT (KDR_SCD_BASE + 0x18)
+#define KDR_SCD_TXFACT (KDR_SCD_BASE + 0x1c)
+#define KDR_SCD_QUEUE_WRPTR(x) (KDR_SCD_BASE + 0x24 + (x) * 4)
+#define KDR_SCD_QUEUE_RDPTR(x) (KDR_SCD_BASE + 0x64 + (x) * 4)
+#define KDR_SCD_SETQUEUENUM (KDR_SCD_BASE + 0xa4)
+#define KDR_SCD_SET_TXSTAT_TXED (KDR_SCD_BASE + 0xa8)
+#define KDR_SCD_SET_TXSTAT_DONE (KDR_SCD_BASE + 0xac)
+#define KDR_SCD_SET_TXSTAT_NOT_SCHD (KDR_SCD_BASE + 0xb0)
+#define KDR_SCD_DECREASE_CREDIT (KDR_SCD_BASE + 0xb4)
+#define KDR_SCD_DECREASE_SCREDIT (KDR_SCD_BASE + 0xb8)
+#define KDR_SCD_LOAD_CREDIT (KDR_SCD_BASE + 0xbc)
+#define KDR_SCD_LOAD_SCREDIT (KDR_SCD_BASE + 0xc0)
+#define KDR_SCD_BAR (KDR_SCD_BASE + 0xc4)
+#define KDR_SCD_BAR_DW0 (KDR_SCD_BASE + 0xc8)
+#define KDR_SCD_BAR_DW1 (KDR_SCD_BASE + 0xcc)
+#define KDR_SCD_QUEUECHAIN_SEL (KDR_SCD_BASE + 0xd0)
+#define KDR_SCD_QUERY_REQ (KDR_SCD_BASE + 0xd8)
+#define KDR_SCD_QUERY_RES (KDR_SCD_BASE + 0xdc)
+#define KDR_SCD_PENDING_FRAMES (KDR_SCD_BASE + 0xe0)
+#define KDR_SCD_INTERRUPT_MASK (KDR_SCD_BASE + 0xe4)
+#define KDR_SCD_INTERRUPT_THRESHOLD (KDR_SCD_BASE + 0xe8)
+#define KDR_SCD_QUERY_MIN_FRAME_SIZE (KDR_SCD_BASE + 0x100)
+#define KDR_SCD_QUEUE_STATUS_BITS(x) (KDR_SCD_BASE + 0x104 + (x) * 4)
+
+/* SP SCD */
+#define SHL_SCD_BASE (PRPH_BASE + 0xa02c00)
+
+#define SHL_SCD_AIT (SHL_SCD_BASE + 0x0c)
+#define SHL_SCD_TXFACT (SHL_SCD_BASE + 0x10)
+#define SHL_SCD_QUEUE_WRPTR(x) (SHL_SCD_BASE + 0x18 + (x) * 4)
+#define SHL_SCD_QUEUE_RDPTR(x) (SHL_SCD_BASE + 0x68 + (x) * 4)
+#define SHL_SCD_QUEUECHAIN_SEL (SHL_SCD_BASE + 0xe8)
+#define SHL_SCD_AGGR_SEL (SHL_SCD_BASE + 0x248)
+#define SHL_SCD_INTERRUPT_MASK (SHL_SCD_BASE + 0x108)
+
+#endif /* __iwl_prph_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
new file mode 100644
index 0000000..9b62b7e
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -0,0 +1,8969 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
+ *
+ * Portions of this file are derived from the ipw3945 project, as well
+ * as portions of the ieee80211 subsystem header files.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/wireless.h>
+#include <linux/firmware.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+
+#include <net/ieee80211_radiotap.h>
+#include <net/mac80211.h>
+
+#include <asm/div64.h>
+
+#include "iwl-3945.h"
+#include "iwl-helpers.h"
+
+#ifdef CONFIG_IWL3945_DEBUG
+u32 iwl3945_debug_level;
+#endif
+
+static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv *priv,
+ struct iwl3945_tx_queue *txq);
+
+/******************************************************************************
+ *
+ * module boiler plate
+ *
+ ******************************************************************************/
+
+/* module parameters */
+static int iwl3945_param_disable_hw_scan; /* def: 0 = use 3945's h/w scan */
+static int iwl3945_param_debug; /* def: 0 = minimal debug log messages */
+static int iwl3945_param_disable; /* def: 0 = enable radio */
+static int iwl3945_param_antenna; /* def: 0 = both antennas (use diversity) */
+int iwl3945_param_hwcrypto; /* def: 0 = use software encryption */
+static int iwl3945_param_qos_enable = 1; /* def: 1 = use quality of service */
+int iwl3945_param_queues_num = IWL_MAX_NUM_QUEUES; /* def: 8 Tx queues */
+
+/*
+ * module name, copyright, version, etc.
+ * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
+ */
+
+#define DRV_DESCRIPTION \
+"Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
+
+#ifdef CONFIG_IWL3945_DEBUG
+#define VD "d"
+#else
+#define VD
+#endif
+
+#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
+#define VS "s"
+#else
+#define VS
+#endif
+
+#define IWLWIFI_VERSION "1.2.22k" VD VS
+#define DRV_COPYRIGHT "Copyright(c) 2003-2007 Intel Corporation"
+#define DRV_VERSION IWLWIFI_VERSION
+
+/* Change firmware file name, using "-" and incrementing number,
+ * *only* when uCode interface or architecture changes so that it
+ * is not compatible with earlier drivers.
+ * This number will also appear in << 8 position of 1st dword of uCode file */
+#define IWL3945_UCODE_API "-1"
+
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR(DRV_COPYRIGHT);
+MODULE_LICENSE("GPL");
+
+static __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr)
+{
+ u16 fc = le16_to_cpu(hdr->frame_control);
+ int hdr_len = ieee80211_get_hdrlen(fc);
+
+ if ((fc & 0x00cc) == (IEEE80211_STYPE_QOS_DATA | IEEE80211_FTYPE_DATA))
+ return (__le16 *) ((u8 *) hdr + hdr_len - QOS_CONTROL_LEN);
+ return NULL;
+}
+
+static const struct ieee80211_hw_mode *iwl3945_get_hw_mode(
+ struct iwl3945_priv *priv, int mode)
+{
+ int i;
+
+ for (i = 0; i < 3; i++)
+ if (priv->modes[i].mode == mode)
+ return &priv->modes[i];
+
+ return NULL;
+}
+
+static int iwl3945_is_empty_essid(const char *essid, int essid_len)
+{
+ /* Single white space is for Linksys APs */
+ if (essid_len == 1 && essid[0] == ' ')
+ return 1;
+
+ /* Otherwise, if the entire essid is 0, we assume it is hidden */
+ while (essid_len) {
+ essid_len--;
+ if (essid[essid_len] != '\0')
+ return 0;
+ }
+
+ return 1;
+}
+
+static const char *iwl3945_escape_essid(const char *essid, u8 essid_len)
+{
+ static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
+ const char *s = essid;
+ char *d = escaped;
+
+ if (iwl3945_is_empty_essid(essid, essid_len)) {
+ memcpy(escaped, "<hidden>", sizeof("<hidden>"));
+ return escaped;
+ }
+
+ essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE);
+ while (essid_len--) {
+ if (*s == '\0') {
+ *d++ = '\\';
+ *d++ = '0';
+ s++;
+ } else
+ *d++ = *s++;
+ }
+ *d = '\0';
+ return escaped;
+}
+
+static void iwl3945_print_hex_dump(int level, void *p, u32 len)
+{
+#ifdef CONFIG_IWL3945_DEBUG
+ if (!(iwl3945_debug_level & level))
+ return;
+
+ print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
+ p, len, 1);
+#endif
+}
+
+/*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
+ * DMA services
+ *
+ * Theory of operation
+ *
+ * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
+ * of buffer descriptors, each of which points to one or more data buffers for
+ * the device to read from or fill. Driver and device exchange status of each
+ * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
+ * entries in each circular buffer, to protect against confusing empty and full
+ * queue states.
+ *
+ * The device reads or writes the data in the queues via the device's several
+ * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
+ *
+ * For Tx queue, there are low mark and high mark limits. If, after queuing
+ * the packet for Tx, free space become < low mark, Tx queue stopped. When
+ * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
+ * Tx queue resumed.
+ *
+ * The 3945 operates with six queues: One receive queue, one transmit queue
+ * (#4) for sending commands to the device firmware, and four transmit queues
+ * (#0-3) for data tx via EDCA. An additional 2 HCCA queues are unused.
+ ***************************************************/
+
+static int iwl3945_queue_space(const struct iwl3945_queue *q)
+{
+ int s = q->read_ptr - q->write_ptr;
+
+ if (q->read_ptr > q->write_ptr)
+ s -= q->n_bd;
+
+ if (s <= 0)
+ s += q->n_window;
+ /* keep some reserve to not confuse empty and full situations */
+ s -= 2;
+ if (s < 0)
+ s = 0;
+ return s;
+}
+
+/**
+ * iwl3945_queue_inc_wrap - increment queue index, wrap back to beginning
+ * @index -- current index
+ * @n_bd -- total number of entries in queue (must be power of 2)
+ */
+static inline int iwl3945_queue_inc_wrap(int index, int n_bd)
+{
+ return ++index & (n_bd - 1);
+}
+
+/**
+ * iwl3945_queue_dec_wrap - increment queue index, wrap back to end
+ * @index -- current index
+ * @n_bd -- total number of entries in queue (must be power of 2)
+ */
+static inline int iwl3945_queue_dec_wrap(int index, int n_bd)
+{
+ return --index & (n_bd - 1);
+}
+
+static inline int x2_queue_used(const struct iwl3945_queue *q, int i)
+{
+ return q->write_ptr > q->read_ptr ?
+ (i >= q->read_ptr && i < q->write_ptr) :
+ !(i < q->read_ptr && i >= q->write_ptr);
+}
+
+static inline u8 get_cmd_index(struct iwl3945_queue *q, u32 index, int is_huge)
+{
+ /* This is for scan command, the big buffer at end of command array */
+ if (is_huge)
+ return q->n_window; /* must be power of 2 */
+
+ /* Otherwise, use normal size buffers */
+ return index & (q->n_window - 1);
+}
+
+/**
+ * iwl3945_queue_init - Initialize queue's high/low-water and read/write indexes
+ */
+static int iwl3945_queue_init(struct iwl3945_priv *priv, struct iwl3945_queue *q,
+ int count, int slots_num, u32 id)
+{
+ q->n_bd = count;
+ q->n_window = slots_num;
+ q->id = id;
+
+ /* count must be power-of-two size, otherwise iwl3945_queue_inc_wrap
+ * and iwl3945_queue_dec_wrap are broken. */
+ BUG_ON(!is_power_of_2(count));
+
+ /* slots_num must be power-of-two size, otherwise
+ * get_cmd_index is broken. */
+ BUG_ON(!is_power_of_2(slots_num));
+
+ q->low_mark = q->n_window / 4;
+ if (q->low_mark < 4)
+ q->low_mark = 4;
+
+ q->high_mark = q->n_window / 8;
+ if (q->high_mark < 2)
+ q->high_mark = 2;
+
+ q->write_ptr = q->read_ptr = 0;
+
+ return 0;
+}
+
+/**
+ * iwl3945_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
+ */
+static int iwl3945_tx_queue_alloc(struct iwl3945_priv *priv,
+ struct iwl3945_tx_queue *txq, u32 id)
+{
+ struct pci_dev *dev = priv->pci_dev;
+
+ /* Driver private data, only for Tx (not command) queues,
+ * not shared with device. */
+ if (id != IWL_CMD_QUEUE_NUM) {
+ txq->txb = kmalloc(sizeof(txq->txb[0]) *
+ TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
+ if (!txq->txb) {
+ IWL_ERROR("kmalloc for auxiliary BD "
+ "structures failed\n");
+ goto error;
+ }
+ } else
+ txq->txb = NULL;
+
+ /* Circular buffer of transmit frame descriptors (TFDs),
+ * shared with device */
+ txq->bd = pci_alloc_consistent(dev,
+ sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX,
+ &txq->q.dma_addr);
+
+ if (!txq->bd) {
+ IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
+ sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX);
+ goto error;
+ }
+ txq->q.id = id;
+
+ return 0;
+
+ error:
+ if (txq->txb) {
+ kfree(txq->txb);
+ txq->txb = NULL;
+ }
+
+ return -ENOMEM;
+}
+
+/**
+ * iwl3945_tx_queue_init - Allocate and initialize one tx/cmd queue
+ */
+int iwl3945_tx_queue_init(struct iwl3945_priv *priv,
+ struct iwl3945_tx_queue *txq, int slots_num, u32 txq_id)
+{
+ struct pci_dev *dev = priv->pci_dev;
+ int len;
+ int rc = 0;
+
+ /*
+ * Alloc buffer array for commands (Tx or other types of commands).
+ * For the command queue (#4), allocate command space + one big
+ * command for scan, since scan command is very huge; the system will
+ * not have two scans at the same time, so only one is needed.
+ * For data Tx queues (all other queues), no super-size command
+ * space is needed.
+ */
+ len = sizeof(struct iwl3945_cmd) * slots_num;
+ if (txq_id == IWL_CMD_QUEUE_NUM)
+ len += IWL_MAX_SCAN_SIZE;
+ txq->cmd = pci_alloc_consistent(dev, len, &txq->dma_addr_cmd);
+ if (!txq->cmd)
+ return -ENOMEM;
+
+ /* Alloc driver data array and TFD circular buffer */
+ rc = iwl3945_tx_queue_alloc(priv, txq, txq_id);
+ if (rc) {
+ pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
+
+ return -ENOMEM;
+ }
+ txq->need_update = 0;
+
+ /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
+ * iwl3945_queue_inc_wrap and iwl3945_queue_dec_wrap are broken. */
+ BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
+
+ /* Initialize queue high/low-water, head/tail indexes */
+ iwl3945_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
+
+ /* Tell device where to find queue, enable DMA channel. */
+ iwl3945_hw_tx_queue_init(priv, txq);
+
+ return 0;
+}
+
+/**
+ * iwl3945_tx_queue_free - Deallocate DMA queue.
+ * @txq: Transmit queue to deallocate.
+ *
+ * Empty queue by removing and destroying all BD's.
+ * Free all buffers.
+ * 0-fill, but do not free "txq" descriptor structure.
+ */
+void iwl3945_tx_queue_free(struct iwl3945_priv *priv, struct iwl3945_tx_queue *txq)
+{
+ struct iwl3945_queue *q = &txq->q;
+ struct pci_dev *dev = priv->pci_dev;
+ int len;
+
+ if (q->n_bd == 0)
+ return;
+
+ /* first, empty all BD's */
+ for (; q->write_ptr != q->read_ptr;
+ q->read_ptr = iwl3945_queue_inc_wrap(q->read_ptr, q->n_bd))
+ iwl3945_hw_txq_free_tfd(priv, txq);
+
+ len = sizeof(struct iwl3945_cmd) * q->n_window;
+ if (q->id == IWL_CMD_QUEUE_NUM)
+ len += IWL_MAX_SCAN_SIZE;
+
+ /* De-alloc array of command/tx buffers */
+ pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
+
+ /* De-alloc circular buffer of TFDs */
+ if (txq->q.n_bd)
+ pci_free_consistent(dev, sizeof(struct iwl3945_tfd_frame) *
+ txq->q.n_bd, txq->bd, txq->q.dma_addr);
+
+ /* De-alloc array of per-TFD driver data */
+ if (txq->txb) {
+ kfree(txq->txb);
+ txq->txb = NULL;
+ }
+
+ /* 0-fill queue descriptor structure */
+ memset(txq, 0, sizeof(*txq));
+}
+
+const u8 iwl3945_broadcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+
+/*************** STATION TABLE MANAGEMENT ****
+ * mac80211 should be examined to determine if sta_info is duplicating
+ * the functionality provided here
+ */
+
+/**************************************************************/
+#if 0 /* temporary disable till we add real remove station */
+/**
+ * iwl3945_remove_station - Remove driver's knowledge of station.
+ *
+ * NOTE: This does not remove station from device's station table.
+ */
+static u8 iwl3945_remove_station(struct iwl3945_priv *priv, const u8 *addr, int is_ap)
+{
+ int index = IWL_INVALID_STATION;
+ int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+
+ if (is_ap)
+ index = IWL_AP_ID;
+ else if (is_broadcast_ether_addr(addr))
+ index = priv->hw_setting.bcast_sta_id;
+ else
+ for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++)
+ if (priv->stations[i].used &&
+ !compare_ether_addr(priv->stations[i].sta.sta.addr,
+ addr)) {
+ index = i;
+ break;
+ }
+
+ if (unlikely(index == IWL_INVALID_STATION))
+ goto out;
+
+ if (priv->stations[index].used) {
+ priv->stations[index].used = 0;
+ priv->num_stations--;
+ }
+
+ BUG_ON(priv->num_stations < 0);
+
+out:
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+ return 0;
+}
+#endif
+
+/**
+ * iwl3945_clear_stations_table - Clear the driver's station table
+ *
+ * NOTE: This does not clear or otherwise alter the device's station table.
+ */
+static void iwl3945_clear_stations_table(struct iwl3945_priv *priv)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+
+ priv->num_stations = 0;
+ memset(priv->stations, 0, sizeof(priv->stations));
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+}
+
+/**
+ * iwl3945_add_station - Add station to station tables in driver and device
+ */
+u8 iwl3945_add_station(struct iwl3945_priv *priv, const u8 *addr, int is_ap, u8 flags)
+{
+ int i;
+ int index = IWL_INVALID_STATION;
+ struct iwl3945_station_entry *station;
+ unsigned long flags_spin;
+ DECLARE_MAC_BUF(mac);
+ u8 rate;
+
+ spin_lock_irqsave(&priv->sta_lock, flags_spin);
+ if (is_ap)
+ index = IWL_AP_ID;
+ else if (is_broadcast_ether_addr(addr))
+ index = priv->hw_setting.bcast_sta_id;
+ else
+ for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) {
+ if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
+ addr)) {
+ index = i;
+ break;
+ }
+
+ if (!priv->stations[i].used &&
+ index == IWL_INVALID_STATION)
+ index = i;
+ }
+
+ /* These two conditions has the same outcome but keep them separate
+ since they have different meaning */
+ if (unlikely(index == IWL_INVALID_STATION)) {
+ spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ return index;
+ }
+
+ if (priv->stations[index].used &&
+ !compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) {
+ spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ return index;
+ }
+
+ IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index, print_mac(mac, addr));
+ station = &priv->stations[index];
+ station->used = 1;
+ priv->num_stations++;
+
+ /* Set up the REPLY_ADD_STA command to send to device */
+ memset(&station->sta, 0, sizeof(struct iwl3945_addsta_cmd));
+ memcpy(station->sta.sta.addr, addr, ETH_ALEN);
+ station->sta.mode = 0;
+ station->sta.sta.sta_id = index;
+ station->sta.station_flags = 0;
+
+ if (priv->phymode == MODE_IEEE80211A)
+ rate = IWL_RATE_6M_PLCP;
+ else
+ rate = IWL_RATE_1M_PLCP;
+
+ /* Turn on both antennas for the station... */
+ station->sta.rate_n_flags =
+ iwl3945_hw_set_rate_n_flags(rate, RATE_MCS_ANT_AB_MSK);
+ station->current_rate.rate_n_flags =
+ le16_to_cpu(station->sta.rate_n_flags);
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+
+ /* Add station to device's station table */
+ iwl3945_send_add_station(priv, &station->sta, flags);
+ return index;
+
+}
+
+/*************** DRIVER STATUS FUNCTIONS *****/
+
+static inline int iwl3945_is_ready(struct iwl3945_priv *priv)
+{
+ /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
+ * set but EXIT_PENDING is not */
+ return test_bit(STATUS_READY, &priv->status) &&
+ test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
+ !test_bit(STATUS_EXIT_PENDING, &priv->status);
+}
+
+static inline int iwl3945_is_alive(struct iwl3945_priv *priv)
+{
+ return test_bit(STATUS_ALIVE, &priv->status);
+}
+
+static inline int iwl3945_is_init(struct iwl3945_priv *priv)
+{
+ return test_bit(STATUS_INIT, &priv->status);
+}
+
+static inline int iwl3945_is_rfkill(struct iwl3945_priv *priv)
+{
+ return test_bit(STATUS_RF_KILL_HW, &priv->status) ||
+ test_bit(STATUS_RF_KILL_SW, &priv->status);
+}
+
+static inline int iwl3945_is_ready_rf(struct iwl3945_priv *priv)
+{
+
+ if (iwl3945_is_rfkill(priv))
+ return 0;
+
+ return iwl3945_is_ready(priv);
+}
+
+/*************** HOST COMMAND QUEUE FUNCTIONS *****/
+
+#define IWL_CMD(x) case x : return #x
+
+static const char *get_cmd_string(u8 cmd)
+{
+ switch (cmd) {
+ IWL_CMD(REPLY_ALIVE);
+ IWL_CMD(REPLY_ERROR);
+ IWL_CMD(REPLY_RXON);
+ IWL_CMD(REPLY_RXON_ASSOC);
+ IWL_CMD(REPLY_QOS_PARAM);
+ IWL_CMD(REPLY_RXON_TIMING);
+ IWL_CMD(REPLY_ADD_STA);
+ IWL_CMD(REPLY_REMOVE_STA);
+ IWL_CMD(REPLY_REMOVE_ALL_STA);
+ IWL_CMD(REPLY_3945_RX);
+ IWL_CMD(REPLY_TX);
+ IWL_CMD(REPLY_RATE_SCALE);
+ IWL_CMD(REPLY_LEDS_CMD);
+ IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
+ IWL_CMD(RADAR_NOTIFICATION);
+ IWL_CMD(REPLY_QUIET_CMD);
+ IWL_CMD(REPLY_CHANNEL_SWITCH);
+ IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
+ IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD);
+ IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION);
+ IWL_CMD(POWER_TABLE_CMD);
+ IWL_CMD(PM_SLEEP_NOTIFICATION);
+ IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC);
+ IWL_CMD(REPLY_SCAN_CMD);
+ IWL_CMD(REPLY_SCAN_ABORT_CMD);
+ IWL_CMD(SCAN_START_NOTIFICATION);
+ IWL_CMD(SCAN_RESULTS_NOTIFICATION);
+ IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
+ IWL_CMD(BEACON_NOTIFICATION);
+ IWL_CMD(REPLY_TX_BEACON);
+ IWL_CMD(WHO_IS_AWAKE_NOTIFICATION);
+ IWL_CMD(QUIET_NOTIFICATION);
+ IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
+ IWL_CMD(MEASURE_ABORT_NOTIFICATION);
+ IWL_CMD(REPLY_BT_CONFIG);
+ IWL_CMD(REPLY_STATISTICS_CMD);
+ IWL_CMD(STATISTICS_NOTIFICATION);
+ IWL_CMD(REPLY_CARD_STATE_CMD);
+ IWL_CMD(CARD_STATE_NOTIFICATION);
+ IWL_CMD(MISSED_BEACONS_NOTIFICATION);
+ default:
+ return "UNKNOWN";
+
+ }
+}
+
+#define HOST_COMPLETE_TIMEOUT (HZ / 2)
+
+/**
+ * iwl3945_enqueue_hcmd - enqueue a uCode command
+ * @priv: device private data point
+ * @cmd: a point to the ucode command structure
+ *
+ * The function returns < 0 values to indicate the operation is
+ * failed. On success, it turns the index (> 0) of command in the
+ * command queue.
+ */
+static int iwl3945_enqueue_hcmd(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd)
+{
+ struct iwl3945_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
+ struct iwl3945_queue *q = &txq->q;
+ struct iwl3945_tfd_frame *tfd;
+ u32 *control_flags;
+ struct iwl3945_cmd *out_cmd;
+ u32 idx;
+ u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
+ dma_addr_t phys_addr;
+ int pad;
+ u16 count;
+ int ret;
+ unsigned long flags;
+
+ /* If any of the command structures end up being larger than
+ * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
+ * we will need to increase the size of the TFD entries */
+ BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
+ !(cmd->meta.flags & CMD_SIZE_HUGE));
+
+ if (iwl3945_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
+ IWL_ERROR("No space for Tx\n");
+ return -ENOSPC;
+ }
+
+ spin_lock_irqsave(&priv->hcmd_lock, flags);
+
+ tfd = &txq->bd[q->write_ptr];
+ memset(tfd, 0, sizeof(*tfd));
+
+ control_flags = (u32 *) tfd;
+
+ idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE);
+ out_cmd = &txq->cmd[idx];
+
+ out_cmd->hdr.cmd = cmd->id;
+ memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta));
+ memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
+
+ /* At this point, the out_cmd now has all of the incoming cmd
+ * information */
+
+ out_cmd->hdr.flags = 0;
+ out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
+ INDEX_TO_SEQ(q->write_ptr));
+ if (out_cmd->meta.flags & CMD_SIZE_HUGE)
+ out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME);
+
+ phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx +
+ offsetof(struct iwl3945_cmd, hdr);
+ iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size);
+
+ pad = U32_PAD(cmd->len);
+ count = TFD_CTL_COUNT_GET(*control_flags);
+ *control_flags = TFD_CTL_COUNT_SET(count) | TFD_CTL_PAD_SET(pad);
+
+ IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
+ "%d bytes at %d[%d]:%d\n",
+ get_cmd_string(out_cmd->hdr.cmd),
+ out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence),
+ fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM);
+
+ txq->need_update = 1;
+
+ /* Increment and update queue's write index */
+ q->write_ptr = iwl3945_queue_inc_wrap(q->write_ptr, q->n_bd);
+ ret = iwl3945_tx_queue_update_write_ptr(priv, txq);
+
+ spin_unlock_irqrestore(&priv->hcmd_lock, flags);
+ return ret ? ret : idx;
+}
+
+static int iwl3945_send_cmd_async(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd)
+{
+ int ret;
+
+ BUG_ON(!(cmd->meta.flags & CMD_ASYNC));
+
+ /* An asynchronous command can not expect an SKB to be set. */
+ BUG_ON(cmd->meta.flags & CMD_WANT_SKB);
+
+ /* An asynchronous command MUST have a callback. */
+ BUG_ON(!cmd->meta.u.callback);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return -EBUSY;
+
+ ret = iwl3945_enqueue_hcmd(priv, cmd);
+ if (ret < 0) {
+ IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
+ get_cmd_string(cmd->id), ret);
+ return ret;
+ }
+ return 0;
+}
+
+static int iwl3945_send_cmd_sync(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd)
+{
+ int cmd_idx;
+ int ret;
+ static atomic_t entry = ATOMIC_INIT(0); /* reentrance protection */
+
+ BUG_ON(cmd->meta.flags & CMD_ASYNC);
+
+ /* A synchronous command can not have a callback set. */
+ BUG_ON(cmd->meta.u.callback != NULL);
+
+ if (atomic_xchg(&entry, 1)) {
+ IWL_ERROR("Error sending %s: Already sending a host command\n",
+ get_cmd_string(cmd->id));
+ return -EBUSY;
+ }
+
+ set_bit(STATUS_HCMD_ACTIVE, &priv->status);
+
+ if (cmd->meta.flags & CMD_WANT_SKB)
+ cmd->meta.source = &cmd->meta;
+
+ cmd_idx = iwl3945_enqueue_hcmd(priv, cmd);
+ if (cmd_idx < 0) {
+ ret = cmd_idx;
+ IWL_ERROR("Error sending %s: iwl3945_enqueue_hcmd failed: %d\n",
+ get_cmd_string(cmd->id), ret);
+ goto out;
+ }
+
+ ret = wait_event_interruptible_timeout(priv->wait_command_queue,
+ !test_bit(STATUS_HCMD_ACTIVE, &priv->status),
+ HOST_COMPLETE_TIMEOUT);
+ if (!ret) {
+ if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
+ IWL_ERROR("Error sending %s: time out after %dms.\n",
+ get_cmd_string(cmd->id),
+ jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
+
+ clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+ ret = -ETIMEDOUT;
+ goto cancel;
+ }
+ }
+
+ if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
+ IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
+ get_cmd_string(cmd->id));
+ ret = -ECANCELED;
+ goto fail;
+ }
+ if (test_bit(STATUS_FW_ERROR, &priv->status)) {
+ IWL_DEBUG_INFO("Command %s failed: FW Error\n",
+ get_cmd_string(cmd->id));
+ ret = -EIO;
+ goto fail;
+ }
+ if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) {
+ IWL_ERROR("Error: Response NULL in '%s'\n",
+ get_cmd_string(cmd->id));
+ ret = -EIO;
+ goto out;
+ }
+
+ ret = 0;
+ goto out;
+
+cancel:
+ if (cmd->meta.flags & CMD_WANT_SKB) {
+ struct iwl3945_cmd *qcmd;
+
+ /* Cancel the CMD_WANT_SKB flag for the cmd in the
+ * TX cmd queue. Otherwise in case the cmd comes
+ * in later, it will possibly set an invalid
+ * address (cmd->meta.source). */
+ qcmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_idx];
+ qcmd->meta.flags &= ~CMD_WANT_SKB;
+ }
+fail:
+ if (cmd->meta.u.skb) {
+ dev_kfree_skb_any(cmd->meta.u.skb);
+ cmd->meta.u.skb = NULL;
+ }
+out:
+ atomic_set(&entry, 0);
+ return ret;
+}
+
+int iwl3945_send_cmd(struct iwl3945_priv *priv, struct iwl3945_host_cmd *cmd)
+{
+ if (cmd->meta.flags & CMD_ASYNC)
+ return iwl3945_send_cmd_async(priv, cmd);
+
+ return iwl3945_send_cmd_sync(priv, cmd);
+}
+
+int iwl3945_send_cmd_pdu(struct iwl3945_priv *priv, u8 id, u16 len, const void *data)
+{
+ struct iwl3945_host_cmd cmd = {
+ .id = id,
+ .len = len,
+ .data = data,
+ };
+
+ return iwl3945_send_cmd_sync(priv, &cmd);
+}
+
+static int __must_check iwl3945_send_cmd_u32(struct iwl3945_priv *priv, u8 id, u32 val)
+{
+ struct iwl3945_host_cmd cmd = {
+ .id = id,
+ .len = sizeof(val),
+ .data = &val,
+ };
+
+ return iwl3945_send_cmd_sync(priv, &cmd);
+}
+
+int iwl3945_send_statistics_request(struct iwl3945_priv *priv)
+{
+ return iwl3945_send_cmd_u32(priv, REPLY_STATISTICS_CMD, 0);
+}
+
+/**
+ * iwl3945_set_rxon_channel - Set the phymode and channel values in staging RXON
+ * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
+ * @channel: Any channel valid for the requested phymode
+
+ * In addition to setting the staging RXON, priv->phymode is also set.
+ *
+ * NOTE: Does not commit to the hardware; it sets appropriate bit fields
+ * in the staging RXON flag structure based on the phymode
+ */
+static int iwl3945_set_rxon_channel(struct iwl3945_priv *priv, u8 phymode, u16 channel)
+{
+ if (!iwl3945_get_channel_info(priv, phymode, channel)) {
+ IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
+ channel, phymode);
+ return -EINVAL;
+ }
+
+ if ((le16_to_cpu(priv->staging_rxon.channel) == channel) &&
+ (priv->phymode == phymode))
+ return 0;
+
+ priv->staging_rxon.channel = cpu_to_le16(channel);
+ if (phymode == MODE_IEEE80211A)
+ priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
+ else
+ priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
+
+ priv->phymode = phymode;
+
+ IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, phymode);
+
+ return 0;
+}
+
+/**
+ * iwl3945_check_rxon_cmd - validate RXON structure is valid
+ *
+ * NOTE: This is really only useful during development and can eventually
+ * be #ifdef'd out once the driver is stable and folks aren't actively
+ * making changes
+ */
+static int iwl3945_check_rxon_cmd(struct iwl3945_rxon_cmd *rxon)
+{
+ int error = 0;
+ int counter = 1;
+
+ if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
+ error |= le32_to_cpu(rxon->flags &
+ (RXON_FLG_TGJ_NARROW_BAND_MSK |
+ RXON_FLG_RADAR_DETECT_MSK));
+ if (error)
+ IWL_WARNING("check 24G fields %d | %d\n",
+ counter++, error);
+ } else {
+ error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
+ 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
+ if (error)
+ IWL_WARNING("check 52 fields %d | %d\n",
+ counter++, error);
+ error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
+ if (error)
+ IWL_WARNING("check 52 CCK %d | %d\n",
+ counter++, error);
+ }
+ error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
+ if (error)
+ IWL_WARNING("check mac addr %d | %d\n", counter++, error);
+
+ /* make sure basic rates 6Mbps and 1Mbps are supported */
+ error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
+ ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
+ if (error)
+ IWL_WARNING("check basic rate %d | %d\n", counter++, error);
+
+ error |= (le16_to_cpu(rxon->assoc_id) > 2007);
+ if (error)
+ IWL_WARNING("check assoc id %d | %d\n", counter++, error);
+
+ error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
+ == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
+ if (error)
+ IWL_WARNING("check CCK and short slot %d | %d\n",
+ counter++, error);
+
+ error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
+ == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
+ if (error)
+ IWL_WARNING("check CCK & auto detect %d | %d\n",
+ counter++, error);
+
+ error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
+ RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
+ if (error)
+ IWL_WARNING("check TGG and auto detect %d | %d\n",
+ counter++, error);
+
+ if ((rxon->flags & RXON_FLG_DIS_DIV_MSK))
+ error |= ((rxon->flags & (RXON_FLG_ANT_B_MSK |
+ RXON_FLG_ANT_A_MSK)) == 0);
+ if (error)
+ IWL_WARNING("check antenna %d %d\n", counter++, error);
+
+ if (error)
+ IWL_WARNING("Tuning to channel %d\n",
+ le16_to_cpu(rxon->channel));
+
+ if (error) {
+ IWL_ERROR("Not a valid iwl3945_rxon_assoc_cmd field values\n");
+ return -1;
+ }
+ return 0;
+}
+
+/**
+ * iwl3945_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
+ * @priv: staging_rxon is compared to active_rxon
+ *
+ * If the RXON structure is changing enough to require a new tune,
+ * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
+ * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
+ */
+static int iwl3945_full_rxon_required(struct iwl3945_priv *priv)
+{
+
+ /* These items are only settable from the full RXON command */
+ if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ||
+ compare_ether_addr(priv->staging_rxon.bssid_addr,
+ priv->active_rxon.bssid_addr) ||
+ compare_ether_addr(priv->staging_rxon.node_addr,
+ priv->active_rxon.node_addr) ||
+ compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
+ priv->active_rxon.wlap_bssid_addr) ||
+ (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
+ (priv->staging_rxon.channel != priv->active_rxon.channel) ||
+ (priv->staging_rxon.air_propagation !=
+ priv->active_rxon.air_propagation) ||
+ (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
+ return 1;
+
+ /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
+ * be updated with the RXON_ASSOC command -- however only some
+ * flag transitions are allowed using RXON_ASSOC */
+
+ /* Check if we are not switching bands */
+ if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
+ (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
+ return 1;
+
+ /* Check if we are switching association toggle */
+ if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
+ (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
+ return 1;
+
+ return 0;
+}
+
+static int iwl3945_send_rxon_assoc(struct iwl3945_priv *priv)
+{
+ int rc = 0;
+ struct iwl3945_rx_packet *res = NULL;
+ struct iwl3945_rxon_assoc_cmd rxon_assoc;
+ struct iwl3945_host_cmd cmd = {
+ .id = REPLY_RXON_ASSOC,
+ .len = sizeof(rxon_assoc),
+ .meta.flags = CMD_WANT_SKB,
+ .data = &rxon_assoc,
+ };
+ const struct iwl3945_rxon_cmd *rxon1 = &priv->staging_rxon;
+ const struct iwl3945_rxon_cmd *rxon2 = &priv->active_rxon;
+
+ if ((rxon1->flags == rxon2->flags) &&
+ (rxon1->filter_flags == rxon2->filter_flags) &&
+ (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
+ (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
+ IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
+ return 0;
+ }
+
+ rxon_assoc.flags = priv->staging_rxon.flags;
+ rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
+ rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
+ rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
+ rxon_assoc.reserved = 0;
+
+ rc = iwl3945_send_cmd_sync(priv, &cmd);
+ if (rc)
+ return rc;
+
+ res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
+ rc = -EIO;
+ }
+
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb_any(cmd.meta.u.skb);
+
+ return rc;
+}
+
+/**
+ * iwl3945_commit_rxon - commit staging_rxon to hardware
+ *
+ * The RXON command in staging_rxon is committed to the hardware and
+ * the active_rxon structure is updated with the new data. This
+ * function correctly transitions out of the RXON_ASSOC_MSK state if
+ * a HW tune is required based on the RXON structure changes.
+ */
+static int iwl3945_commit_rxon(struct iwl3945_priv *priv)
+{
+ /* cast away the const for active_rxon in this function */
+ struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
+ int rc = 0;
+ DECLARE_MAC_BUF(mac);
+
+ if (!iwl3945_is_alive(priv))
+ return -1;
+
+ /* always get timestamp with Rx frame */
+ priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
+
+ /* select antenna */
+ priv->staging_rxon.flags &=
+ ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
+ priv->staging_rxon.flags |= iwl3945_get_antenna_flags(priv);
+
+ rc = iwl3945_check_rxon_cmd(&priv->staging_rxon);
+ if (rc) {
+ IWL_ERROR("Invalid RXON configuration. Not committing.\n");
+ return -EINVAL;
+ }
+
+ /* If we don't need to send a full RXON, we can use
+ * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
+ * and other flags for the current radio configuration. */
+ if (!iwl3945_full_rxon_required(priv)) {
+ rc = iwl3945_send_rxon_assoc(priv);
+ if (rc) {
+ IWL_ERROR("Error setting RXON_ASSOC "
+ "configuration (%d).\n", rc);
+ return rc;
+ }
+
+ memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+
+ return 0;
+ }
+
+ /* If we are currently associated and the new config requires
+ * an RXON_ASSOC and the new config wants the associated mask enabled,
+ * we must clear the associated from the active configuration
+ * before we apply the new config */
+ if (iwl3945_is_associated(priv) &&
+ (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) {
+ IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+
+ rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON,
+ sizeof(struct iwl3945_rxon_cmd),
+ &priv->active_rxon);
+
+ /* If the mask clearing failed then we set
+ * active_rxon back to what it was previously */
+ if (rc) {
+ active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
+ IWL_ERROR("Error clearing ASSOC_MSK on current "
+ "configuration (%d).\n", rc);
+ return rc;
+ }
+ }
+
+ IWL_DEBUG_INFO("Sending RXON\n"
+ "* with%s RXON_FILTER_ASSOC_MSK\n"
+ "* channel = %d\n"
+ "* bssid = %s\n",
+ ((priv->staging_rxon.filter_flags &
+ RXON_FILTER_ASSOC_MSK) ? "" : "out"),
+ le16_to_cpu(priv->staging_rxon.channel),
+ print_mac(mac, priv->staging_rxon.bssid_addr));
+
+ /* Apply the new configuration */
+ rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON,
+ sizeof(struct iwl3945_rxon_cmd), &priv->staging_rxon);
+ if (rc) {
+ IWL_ERROR("Error setting new configuration (%d).\n", rc);
+ return rc;
+ }
+
+ memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+
+ iwl3945_clear_stations_table(priv);
+
+ /* If we issue a new RXON command which required a tune then we must
+ * send a new TXPOWER command or we won't be able to Tx any frames */
+ rc = iwl3945_hw_reg_send_txpower(priv);
+ if (rc) {
+ IWL_ERROR("Error setting Tx power (%d).\n", rc);
+ return rc;
+ }
+
+ /* Add the broadcast address so we can send broadcast frames */
+ if (iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0) ==
+ IWL_INVALID_STATION) {
+ IWL_ERROR("Error adding BROADCAST address for transmit.\n");
+ return -EIO;
+ }
+
+ /* If we have set the ASSOC_MSK and we are in BSS mode then
+ * add the IWL_AP_ID to the station rate table */
+ if (iwl3945_is_associated(priv) &&
+ (priv->iw_mode == IEEE80211_IF_TYPE_STA))
+ if (iwl3945_add_station(priv, priv->active_rxon.bssid_addr, 1, 0)
+ == IWL_INVALID_STATION) {
+ IWL_ERROR("Error adding AP address for transmit.\n");
+ return -EIO;
+ }
+
+ /* Init the hardware's rate fallback order based on the
+ * phymode */
+ rc = iwl3945_init_hw_rate_table(priv);
+ if (rc) {
+ IWL_ERROR("Error setting HW rate table: %02X\n", rc);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int iwl3945_send_bt_config(struct iwl3945_priv *priv)
+{
+ struct iwl3945_bt_cmd bt_cmd = {
+ .flags = 3,
+ .lead_time = 0xAA,
+ .max_kill = 1,
+ .kill_ack_mask = 0,
+ .kill_cts_mask = 0,
+ };
+
+ return iwl3945_send_cmd_pdu(priv, REPLY_BT_CONFIG,
+ sizeof(struct iwl3945_bt_cmd), &bt_cmd);
+}
+
+static int iwl3945_send_scan_abort(struct iwl3945_priv *priv)
+{
+ int rc = 0;
+ struct iwl3945_rx_packet *res;
+ struct iwl3945_host_cmd cmd = {
+ .id = REPLY_SCAN_ABORT_CMD,
+ .meta.flags = CMD_WANT_SKB,
+ };
+
+ /* If there isn't a scan actively going on in the hardware
+ * then we are in between scan bands and not actually
+ * actively scanning, so don't send the abort command */
+ if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
+ clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+ return 0;
+ }
+
+ rc = iwl3945_send_cmd_sync(priv, &cmd);
+ if (rc) {
+ clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+ return rc;
+ }
+
+ res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data;
+ if (res->u.status != CAN_ABORT_STATUS) {
+ /* The scan abort will return 1 for success or
+ * 2 for "failure". A failure condition can be
+ * due to simply not being in an active scan which
+ * can occur if we send the scan abort before we
+ * the microcode has notified us that a scan is
+ * completed. */
+ IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
+ clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+ clear_bit(STATUS_SCAN_HW, &priv->status);
+ }
+
+ dev_kfree_skb_any(cmd.meta.u.skb);
+
+ return rc;
+}
+
+static int iwl3945_card_state_sync_callback(struct iwl3945_priv *priv,
+ struct iwl3945_cmd *cmd,
+ struct sk_buff *skb)
+{
+ return 1;
+}
+
+/*
+ * CARD_STATE_CMD
+ *
+ * Use: Sets the device's internal card state to enable, disable, or halt
+ *
+ * When in the 'enable' state the card operates as normal.
+ * When in the 'disable' state, the card enters into a low power mode.
+ * When in the 'halt' state, the card is shut down and must be fully
+ * restarted to come back on.
+ */
+static int iwl3945_send_card_state(struct iwl3945_priv *priv, u32 flags, u8 meta_flag)
+{
+ struct iwl3945_host_cmd cmd = {
+ .id = REPLY_CARD_STATE_CMD,
+ .len = sizeof(u32),
+ .data = &flags,
+ .meta.flags = meta_flag,
+ };
+
+ if (meta_flag & CMD_ASYNC)
+ cmd.meta.u.callback = iwl3945_card_state_sync_callback;
+
+ return iwl3945_send_cmd(priv, &cmd);
+}
+
+static int iwl3945_add_sta_sync_callback(struct iwl3945_priv *priv,
+ struct iwl3945_cmd *cmd, struct sk_buff *skb)
+{
+ struct iwl3945_rx_packet *res = NULL;
+
+ if (!skb) {
+ IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
+ return 1;
+ }
+
+ res = (struct iwl3945_rx_packet *)skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
+ res->hdr.flags);
+ return 1;
+ }
+
+ switch (res->u.add_sta.status) {
+ case ADD_STA_SUCCESS_MSK:
+ break;
+ default:
+ break;
+ }
+
+ /* We didn't cache the SKB; let the caller free it */
+ return 1;
+}
+
+int iwl3945_send_add_station(struct iwl3945_priv *priv,
+ struct iwl3945_addsta_cmd *sta, u8 flags)
+{
+ struct iwl3945_rx_packet *res = NULL;
+ int rc = 0;
+ struct iwl3945_host_cmd cmd = {
+ .id = REPLY_ADD_STA,
+ .len = sizeof(struct iwl3945_addsta_cmd),
+ .meta.flags = flags,
+ .data = sta,
+ };
+
+ if (flags & CMD_ASYNC)
+ cmd.meta.u.callback = iwl3945_add_sta_sync_callback;
+ else
+ cmd.meta.flags |= CMD_WANT_SKB;
+
+ rc = iwl3945_send_cmd(priv, &cmd);
+
+ if (rc || (flags & CMD_ASYNC))
+ return rc;
+
+ res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
+ res->hdr.flags);
+ rc = -EIO;
+ }
+
+ if (rc == 0) {
+ switch (res->u.add_sta.status) {
+ case ADD_STA_SUCCESS_MSK:
+ IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
+ break;
+ default:
+ rc = -EIO;
+ IWL_WARNING("REPLY_ADD_STA failed\n");
+ break;
+ }
+ }
+
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb_any(cmd.meta.u.skb);
+
+ return rc;
+}
+
+static int iwl3945_update_sta_key_info(struct iwl3945_priv *priv,
+ struct ieee80211_key_conf *keyconf,
+ u8 sta_id)
+{
+ unsigned long flags;
+ __le16 key_flags = 0;
+
+ switch (keyconf->alg) {
+ case ALG_CCMP:
+ key_flags |= STA_KEY_FLG_CCMP;
+ key_flags |= cpu_to_le16(
+ keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+ key_flags &= ~STA_KEY_FLG_INVALID;
+ break;
+ case ALG_TKIP:
+ case ALG_WEP:
+ default:
+ return -EINVAL;
+ }
+ spin_lock_irqsave(&priv->sta_lock, flags);
+ priv->stations[sta_id].keyinfo.alg = keyconf->alg;
+ priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
+ memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
+ keyconf->keylen);
+
+ memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
+ keyconf->keylen);
+ priv->stations[sta_id].sta.key.key_flags = key_flags;
+ priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+ priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
+ iwl3945_send_add_station(priv, &priv->stations[sta_id].sta, 0);
+ return 0;
+}
+
+static int iwl3945_clear_sta_key_info(struct iwl3945_priv *priv, u8 sta_id)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+ memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl3945_hw_key));
+ memset(&priv->stations[sta_id].sta.key, 0, sizeof(struct iwl3945_keyinfo));
+ priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
+ priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+ priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
+ iwl3945_send_add_station(priv, &priv->stations[sta_id].sta, 0);
+ return 0;
+}
+
+static void iwl3945_clear_free_frames(struct iwl3945_priv *priv)
+{
+ struct list_head *element;
+
+ IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
+ priv->frames_count);
+
+ while (!list_empty(&priv->free_frames)) {
+ element = priv->free_frames.next;
+ list_del(element);
+ kfree(list_entry(element, struct iwl3945_frame, list));
+ priv->frames_count--;
+ }
+
+ if (priv->frames_count) {
+ IWL_WARNING("%d frames still in use. Did we lose one?\n",
+ priv->frames_count);
+ priv->frames_count = 0;
+ }
+}
+
+static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl3945_priv *priv)
+{
+ struct iwl3945_frame *frame;
+ struct list_head *element;
+ if (list_empty(&priv->free_frames)) {
+ frame = kzalloc(sizeof(*frame), GFP_KERNEL);
+ if (!frame) {
+ IWL_ERROR("Could not allocate frame!\n");
+ return NULL;
+ }
+
+ priv->frames_count++;
+ return frame;
+ }
+
+ element = priv->free_frames.next;
+ list_del(element);
+ return list_entry(element, struct iwl3945_frame, list);
+}
+
+static void iwl3945_free_frame(struct iwl3945_priv *priv, struct iwl3945_frame *frame)
+{
+ memset(frame, 0, sizeof(*frame));
+ list_add(&frame->list, &priv->free_frames);
+}
+
+unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv,
+ struct ieee80211_hdr *hdr,
+ const u8 *dest, int left)
+{
+
+ if (!iwl3945_is_associated(priv) || !priv->ibss_beacon ||
+ ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) &&
+ (priv->iw_mode != IEEE80211_IF_TYPE_AP)))
+ return 0;
+
+ if (priv->ibss_beacon->len > left)
+ return 0;
+
+ memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
+
+ return priv->ibss_beacon->len;
+}
+
+static int iwl3945_rate_index_from_plcp(int plcp)
+{
+ int i = 0;
+
+ for (i = 0; i < IWL_RATE_COUNT; i++)
+ if (iwl3945_rates[i].plcp == plcp)
+ return i;
+ return -1;
+}
+
+static u8 iwl3945_rate_get_lowest_plcp(int rate_mask)
+{
+ u8 i;
+
+ for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
+ i = iwl3945_rates[i].next_ieee) {
+ if (rate_mask & (1 << i))
+ return iwl3945_rates[i].plcp;
+ }
+
+ return IWL_RATE_INVALID;
+}
+
+static int iwl3945_send_beacon_cmd(struct iwl3945_priv *priv)
+{
+ struct iwl3945_frame *frame;
+ unsigned int frame_size;
+ int rc;
+ u8 rate;
+
+ frame = iwl3945_get_free_frame(priv);
+
+ if (!frame) {
+ IWL_ERROR("Could not obtain free frame buffer for beacon "
+ "command.\n");
+ return -ENOMEM;
+ }
+
+ if (!(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)) {
+ rate = iwl3945_rate_get_lowest_plcp(priv->active_rate_basic &
+ 0xFF0);
+ if (rate == IWL_INVALID_RATE)
+ rate = IWL_RATE_6M_PLCP;
+ } else {
+ rate = iwl3945_rate_get_lowest_plcp(priv->active_rate_basic & 0xF);
+ if (rate == IWL_INVALID_RATE)
+ rate = IWL_RATE_1M_PLCP;
+ }
+
+ frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate);
+
+ rc = iwl3945_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
+ &frame->u.cmd[0]);
+
+ iwl3945_free_frame(priv, frame);
+
+ return rc;
+}
+
+/******************************************************************************
+ *
+ * EEPROM related functions
+ *
+ ******************************************************************************/
+
+static void get_eeprom_mac(struct iwl3945_priv *priv, u8 *mac)
+{
+ memcpy(mac, priv->eeprom.mac_address, 6);
+}
+
+/**
+ * iwl3945_eeprom_init - read EEPROM contents
+ *
+ * Load the EEPROM contents from adapter into priv->eeprom
+ *
+ * NOTE: This routine uses the non-debug IO access functions.
+ */
+int iwl3945_eeprom_init(struct iwl3945_priv *priv)
+{
+ u16 *e = (u16 *)&priv->eeprom;
+ u32 gp = iwl3945_read32(priv, CSR_EEPROM_GP);
+ u32 r;
+ int sz = sizeof(priv->eeprom);
+ int rc;
+ int i;
+ u16 addr;
+
+ /* The EEPROM structure has several padding buffers within it
+ * and when adding new EEPROM maps is subject to programmer errors
+ * which may be very difficult to identify without explicitly
+ * checking the resulting size of the eeprom map. */
+ BUILD_BUG_ON(sizeof(priv->eeprom) != IWL_EEPROM_IMAGE_SIZE);
+
+ if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) {
+ IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp);
+ return -ENOENT;
+ }
+
+ /* Make sure driver (instead of uCode) is allowed to read EEPROM */
+ rc = iwl3945_eeprom_acquire_semaphore(priv);
+ if (rc < 0) {
+ IWL_ERROR("Failed to acquire EEPROM semaphore.\n");
+ return -ENOENT;
+ }
+
+ /* eeprom is an array of 16bit values */
+ for (addr = 0; addr < sz; addr += sizeof(u16)) {
+ _iwl3945_write32(priv, CSR_EEPROM_REG, addr << 1);
+ _iwl3945_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD);
+
+ for (i = 0; i < IWL_EEPROM_ACCESS_TIMEOUT;
+ i += IWL_EEPROM_ACCESS_DELAY) {
+ r = _iwl3945_read_direct32(priv, CSR_EEPROM_REG);
+ if (r & CSR_EEPROM_REG_READ_VALID_MSK)
+ break;
+ udelay(IWL_EEPROM_ACCESS_DELAY);
+ }
+
+ if (!(r & CSR_EEPROM_REG_READ_VALID_MSK)) {
+ IWL_ERROR("Time out reading EEPROM[%d]", addr);
+ return -ETIMEDOUT;
+ }
+ e[addr / 2] = le16_to_cpu(r >> 16);
+ }
+
+ return 0;
+}
+
+/******************************************************************************
+ *
+ * Misc. internal state and helper functions
+ *
+ ******************************************************************************/
+#ifdef CONFIG_IWL3945_DEBUG
+
+/**
+ * iwl3945_report_frame - dump frame to syslog during debug sessions
+ *
+ * You may hack this function to show different aspects of received frames,
+ * including selective frame dumps.
+ * group100 parameter selects whether to show 1 out of 100 good frames.
+ */
+void iwl3945_report_frame(struct iwl3945_priv *priv,
+ struct iwl3945_rx_packet *pkt,
+ struct ieee80211_hdr *header, int group100)
+{
+ u32 to_us;
+ u32 print_summary = 0;
+ u32 print_dump = 0; /* set to 1 to dump all frames' contents */
+ u32 hundred = 0;
+ u32 dataframe = 0;
+ u16 fc;
+ u16 seq_ctl;
+ u16 channel;
+ u16 phy_flags;
+ int rate_sym;
+ u16 length;
+ u16 status;
+ u16 bcn_tmr;
+ u32 tsf_low;
+ u64 tsf;
+ u8 rssi;
+ u8 agc;
+ u16 sig_avg;
+ u16 noise_diff;
+ struct iwl3945_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
+ struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
+ struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
+ u8 *data = IWL_RX_DATA(pkt);
+
+ /* MAC header */
+ fc = le16_to_cpu(header->frame_control);
+ seq_ctl = le16_to_cpu(header->seq_ctrl);
+
+ /* metadata */
+ channel = le16_to_cpu(rx_hdr->channel);
+ phy_flags = le16_to_cpu(rx_hdr->phy_flags);
+ rate_sym = rx_hdr->rate;
+ length = le16_to_cpu(rx_hdr->len);
+
+ /* end-of-frame status and timestamp */
+ status = le32_to_cpu(rx_end->status);
+ bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp);
+ tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff;
+ tsf = le64_to_cpu(rx_end->timestamp);
+
+ /* signal statistics */
+ rssi = rx_stats->rssi;
+ agc = rx_stats->agc;
+ sig_avg = le16_to_cpu(rx_stats->sig_avg);
+ noise_diff = le16_to_cpu(rx_stats->noise_diff);
+
+ to_us = !compare_ether_addr(header->addr1, priv->mac_addr);
+
+ /* if data frame is to us and all is good,
+ * (optionally) print summary for only 1 out of every 100 */
+ if (to_us && (fc & ~IEEE80211_FCTL_PROTECTED) ==
+ (IEEE80211_FCTL_FROMDS | IEEE80211_FTYPE_DATA)) {
+ dataframe = 1;
+ if (!group100)
+ print_summary = 1; /* print each frame */
+ else if (priv->framecnt_to_us < 100) {
+ priv->framecnt_to_us++;
+ print_summary = 0;
+ } else {
+ priv->framecnt_to_us = 0;
+ print_summary = 1;
+ hundred = 1;
+ }
+ } else {
+ /* print summary for all other frames */
+ print_summary = 1;
+ }
+
+ if (print_summary) {
+ char *title;
+ u32 rate;
+
+ if (hundred)
+ title = "100Frames";
+ else if (fc & IEEE80211_FCTL_RETRY)
+ title = "Retry";
+ else if (ieee80211_is_assoc_response(fc))
+ title = "AscRsp";
+ else if (ieee80211_is_reassoc_response(fc))
+ title = "RasRsp";
+ else if (ieee80211_is_probe_response(fc)) {
+ title = "PrbRsp";
+ print_dump = 1; /* dump frame contents */
+ } else if (ieee80211_is_beacon(fc)) {
+ title = "Beacon";
+ print_dump = 1; /* dump frame contents */
+ } else if (ieee80211_is_atim(fc))
+ title = "ATIM";
+ else if (ieee80211_is_auth(fc))
+ title = "Auth";
+ else if (ieee80211_is_deauth(fc))
+ title = "DeAuth";
+ else if (ieee80211_is_disassoc(fc))
+ title = "DisAssoc";
+ else
+ title = "Frame";
+
+ rate = iwl3945_rate_index_from_plcp(rate_sym);
+ if (rate == -1)
+ rate = 0;
+ else
+ rate = iwl3945_rates[rate].ieee / 2;
+
+ /* print frame summary.
+ * MAC addresses show just the last byte (for brevity),
+ * but you can hack it to show more, if you'd like to. */
+ if (dataframe)
+ IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, "
+ "len=%u, rssi=%d, chnl=%d, rate=%u, \n",
+ title, fc, header->addr1[5],
+ length, rssi, channel, rate);
+ else {
+ /* src/dst addresses assume managed mode */
+ IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, "
+ "src=0x%02x, rssi=%u, tim=%lu usec, "
+ "phy=0x%02x, chnl=%d\n",
+ title, fc, header->addr1[5],
+ header->addr3[5], rssi,
+ tsf_low - priv->scan_start_tsf,
+ phy_flags, channel);
+ }
+ }
+ if (print_dump)
+ iwl3945_print_hex_dump(IWL_DL_RX, data, length);
+}
+#endif
+
+static void iwl3945_unset_hw_setting(struct iwl3945_priv *priv)
+{
+ if (priv->hw_setting.shared_virt)
+ pci_free_consistent(priv->pci_dev,
+ sizeof(struct iwl3945_shared),
+ priv->hw_setting.shared_virt,
+ priv->hw_setting.shared_phys);
+}
+
+/**
+ * iwl3945_supported_rate_to_ie - fill in the supported rate in IE field
+ *
+ * return : set the bit for each supported rate insert in ie
+ */
+static u16 iwl3945_supported_rate_to_ie(u8 *ie, u16 supported_rate,
+ u16 basic_rate, int *left)
+{
+ u16 ret_rates = 0, bit;
+ int i;
+ u8 *cnt = ie;
+ u8 *rates = ie + 1;
+
+ for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
+ if (bit & supported_rate) {
+ ret_rates |= bit;
+ rates[*cnt] = iwl3945_rates[i].ieee |
+ ((bit & basic_rate) ? 0x80 : 0x00);
+ (*cnt)++;
+ (*left)--;
+ if ((*left <= 0) ||
+ (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
+ break;
+ }
+ }
+
+ return ret_rates;
+}
+
+/**
+ * iwl3945_fill_probe_req - fill in all required fields and IE for probe request
+ */
+static u16 iwl3945_fill_probe_req(struct iwl3945_priv *priv,
+ struct ieee80211_mgmt *frame,
+ int left, int is_direct)
+{
+ int len = 0;
+ u8 *pos = NULL;
+ u16 active_rates, ret_rates, cck_rates;
+
+ /* Make sure there is enough space for the probe request,
+ * two mandatory IEs and the data */
+ left -= 24;
+ if (left < 0)
+ return 0;
+ len += 24;
+
+ frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
+ memcpy(frame->da, iwl3945_broadcast_addr, ETH_ALEN);
+ memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
+ memcpy(frame->bssid, iwl3945_broadcast_addr, ETH_ALEN);
+ frame->seq_ctrl = 0;
+
+ /* fill in our indirect SSID IE */
+ /* ...next IE... */
+
+ left -= 2;
+ if (left < 0)
+ return 0;
+ len += 2;
+ pos = &(frame->u.probe_req.variable[0]);
+ *pos++ = WLAN_EID_SSID;
+ *pos++ = 0;
+
+ /* fill in our direct SSID IE... */
+ if (is_direct) {
+ /* ...next IE... */
+ left -= 2 + priv->essid_len;
+ if (left < 0)
+ return 0;
+ /* ... fill it in... */
+ *pos++ = WLAN_EID_SSID;
+ *pos++ = priv->essid_len;
+ memcpy(pos, priv->essid, priv->essid_len);
+ pos += priv->essid_len;
+ len += 2 + priv->essid_len;
+ }
+
+ /* fill in supported rate */
+ /* ...next IE... */
+ left -= 2;
+ if (left < 0)
+ return 0;
+
+ /* ... fill it in... */
+ *pos++ = WLAN_EID_SUPP_RATES;
+ *pos = 0;
+
+ priv->active_rate = priv->rates_mask;
+ active_rates = priv->active_rate;
+ priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
+
+ cck_rates = IWL_CCK_RATES_MASK & active_rates;
+ ret_rates = iwl3945_supported_rate_to_ie(pos, cck_rates,
+ priv->active_rate_basic, &left);
+ active_rates &= ~ret_rates;
+
+ ret_rates = iwl3945_supported_rate_to_ie(pos, active_rates,
+ priv->active_rate_basic, &left);
+ active_rates &= ~ret_rates;
+
+ len += 2 + *pos;
+ pos += (*pos) + 1;
+ if (active_rates == 0)
+ goto fill_end;
+
+ /* fill in supported extended rate */
+ /* ...next IE... */
+ left -= 2;
+ if (left < 0)
+ return 0;
+ /* ... fill it in... */
+ *pos++ = WLAN_EID_EXT_SUPP_RATES;
+ *pos = 0;
+ iwl3945_supported_rate_to_ie(pos, active_rates,
+ priv->active_rate_basic, &left);
+ if (*pos > 0)
+ len += 2 + *pos;
+
+ fill_end:
+ return (u16)len;
+}
+
+/*
+ * QoS support
+*/
+#ifdef CONFIG_IWL3945_QOS
+static int iwl3945_send_qos_params_command(struct iwl3945_priv *priv,
+ struct iwl3945_qosparam_cmd *qos)
+{
+
+ return iwl3945_send_cmd_pdu(priv, REPLY_QOS_PARAM,
+ sizeof(struct iwl3945_qosparam_cmd), qos);
+}
+
+static void iwl3945_reset_qos(struct iwl3945_priv *priv)
+{
+ u16 cw_min = 15;
+ u16 cw_max = 1023;
+ u8 aifs = 2;
+ u8 is_legacy = 0;
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->qos_data.qos_active = 0;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) {
+ if (priv->qos_data.qos_enable)
+ priv->qos_data.qos_active = 1;
+ if (!(priv->active_rate & 0xfff0)) {
+ cw_min = 31;
+ is_legacy = 1;
+ }
+ } else if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+ if (priv->qos_data.qos_enable)
+ priv->qos_data.qos_active = 1;
+ } else if (!(priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK)) {
+ cw_min = 31;
+ is_legacy = 1;
+ }
+
+ if (priv->qos_data.qos_active)
+ aifs = 3;
+
+ priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min);
+ priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max);
+ priv->qos_data.def_qos_parm.ac[0].aifsn = aifs;
+ priv->qos_data.def_qos_parm.ac[0].edca_txop = 0;
+ priv->qos_data.def_qos_parm.ac[0].reserved1 = 0;
+
+ if (priv->qos_data.qos_active) {
+ i = 1;
+ priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min);
+ priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max);
+ priv->qos_data.def_qos_parm.ac[i].aifsn = 7;
+ priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
+ priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
+
+ i = 2;
+ priv->qos_data.def_qos_parm.ac[i].cw_min =
+ cpu_to_le16((cw_min + 1) / 2 - 1);
+ priv->qos_data.def_qos_parm.ac[i].cw_max =
+ cpu_to_le16(cw_max);
+ priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
+ if (is_legacy)
+ priv->qos_data.def_qos_parm.ac[i].edca_txop =
+ cpu_to_le16(6016);
+ else
+ priv->qos_data.def_qos_parm.ac[i].edca_txop =
+ cpu_to_le16(3008);
+ priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
+
+ i = 3;
+ priv->qos_data.def_qos_parm.ac[i].cw_min =
+ cpu_to_le16((cw_min + 1) / 4 - 1);
+ priv->qos_data.def_qos_parm.ac[i].cw_max =
+ cpu_to_le16((cw_max + 1) / 2 - 1);
+ priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
+ priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
+ if (is_legacy)
+ priv->qos_data.def_qos_parm.ac[i].edca_txop =
+ cpu_to_le16(3264);
+ else
+ priv->qos_data.def_qos_parm.ac[i].edca_txop =
+ cpu_to_le16(1504);
+ } else {
+ for (i = 1; i < 4; i++) {
+ priv->qos_data.def_qos_parm.ac[i].cw_min =
+ cpu_to_le16(cw_min);
+ priv->qos_data.def_qos_parm.ac[i].cw_max =
+ cpu_to_le16(cw_max);
+ priv->qos_data.def_qos_parm.ac[i].aifsn = aifs;
+ priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
+ priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
+ }
+ }
+ IWL_DEBUG_QOS("set QoS to default \n");
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static void iwl3945_activate_qos(struct iwl3945_priv *priv, u8 force)
+{
+ unsigned long flags;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ if (!priv->qos_data.qos_enable)
+ return;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->qos_data.def_qos_parm.qos_flags = 0;
+
+ if (priv->qos_data.qos_cap.q_AP.queue_request &&
+ !priv->qos_data.qos_cap.q_AP.txop_request)
+ priv->qos_data.def_qos_parm.qos_flags |=
+ QOS_PARAM_FLG_TXOP_TYPE_MSK;
+
+ if (priv->qos_data.qos_active)
+ priv->qos_data.def_qos_parm.qos_flags |=
+ QOS_PARAM_FLG_UPDATE_EDCA_MSK;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (force || iwl3945_is_associated(priv)) {
+ IWL_DEBUG_QOS("send QoS cmd with Qos active %d \n",
+ priv->qos_data.qos_active);
+
+ iwl3945_send_qos_params_command(priv,
+ &(priv->qos_data.def_qos_parm));
+ }
+}
+
+#endif /* CONFIG_IWL3945_QOS */
+/*
+ * Power management (not Tx power!) functions
+ */
+#define MSEC_TO_USEC 1024
+
+#define NOSLP __constant_cpu_to_le32(0)
+#define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK
+#define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
+#define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
+ __constant_cpu_to_le32(X1), \
+ __constant_cpu_to_le32(X2), \
+ __constant_cpu_to_le32(X3), \
+ __constant_cpu_to_le32(X4)}
+
+
+/* default power management (not Tx power) table values */
+/* for tim 0-10 */
+static struct iwl3945_power_vec_entry range_0[IWL_POWER_AC] = {
+ {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
+ {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
+ {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
+ {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
+ {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
+ {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
+};
+
+/* for tim > 10 */
+static struct iwl3945_power_vec_entry range_1[IWL_POWER_AC] = {
+ {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
+ {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
+ SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
+ {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
+ SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
+ {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
+ SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
+ {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
+ {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
+ SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
+};
+
+int iwl3945_power_init_handle(struct iwl3945_priv *priv)
+{
+ int rc = 0, i;
+ struct iwl3945_power_mgr *pow_data;
+ int size = sizeof(struct iwl3945_power_vec_entry) * IWL_POWER_AC;
+ u16 pci_pm;
+
+ IWL_DEBUG_POWER("Initialize power \n");
+
+ pow_data = &(priv->power_data);
+
+ memset(pow_data, 0, sizeof(*pow_data));
+
+ pow_data->active_index = IWL_POWER_RANGE_0;
+ pow_data->dtim_val = 0xffff;
+
+ memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
+ memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
+
+ rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm);
+ if (rc != 0)
+ return 0;
+ else {
+ struct iwl3945_powertable_cmd *cmd;
+
+ IWL_DEBUG_POWER("adjust power command flags\n");
+
+ for (i = 0; i < IWL_POWER_AC; i++) {
+ cmd = &pow_data->pwr_range_0[i].cmd;
+
+ if (pci_pm & 0x1)
+ cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
+ else
+ cmd->flags |= IWL_POWER_PCI_PM_MSK;
+ }
+ }
+ return rc;
+}
+
+static int iwl3945_update_power_cmd(struct iwl3945_priv *priv,
+ struct iwl3945_powertable_cmd *cmd, u32 mode)
+{
+ int rc = 0, i;
+ u8 skip;
+ u32 max_sleep = 0;
+ struct iwl3945_power_vec_entry *range;
+ u8 period = 0;
+ struct iwl3945_power_mgr *pow_data;
+
+ if (mode > IWL_POWER_INDEX_5) {
+ IWL_DEBUG_POWER("Error invalid power mode \n");
+ return -1;
+ }
+ pow_data = &(priv->power_data);
+
+ if (pow_data->active_index == IWL_POWER_RANGE_0)
+ range = &pow_data->pwr_range_0[0];
+ else
+ range = &pow_data->pwr_range_1[1];
+
+ memcpy(cmd, &range[mode].cmd, sizeof(struct iwl3945_powertable_cmd));
+
+#ifdef IWL_MAC80211_DISABLE
+ if (priv->assoc_network != NULL) {
+ unsigned long flags;
+
+ period = priv->assoc_network->tim.tim_period;
+ }
+#endif /*IWL_MAC80211_DISABLE */
+ skip = range[mode].no_dtim;
+
+ if (period == 0) {
+ period = 1;
+ skip = 0;
+ }
+
+ if (skip == 0) {
+ max_sleep = period;
+ cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
+ } else {
+ __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
+ max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
+ cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
+ }
+
+ for (i = 0; i < IWL_POWER_VEC_SIZE; i++) {
+ if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
+ cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
+ }
+
+ IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags);
+ IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
+ IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
+ IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
+ le32_to_cpu(cmd->sleep_interval[0]),
+ le32_to_cpu(cmd->sleep_interval[1]),
+ le32_to_cpu(cmd->sleep_interval[2]),
+ le32_to_cpu(cmd->sleep_interval[3]),
+ le32_to_cpu(cmd->sleep_interval[4]));
+
+ return rc;
+}
+
+static int iwl3945_send_power_mode(struct iwl3945_priv *priv, u32 mode)
+{
+ u32 uninitialized_var(final_mode);
+ int rc;
+ struct iwl3945_powertable_cmd cmd;
+
+ /* If on battery, set to 3,
+ * if plugged into AC power, set to CAM ("continuously aware mode"),
+ * else user level */
+ switch (mode) {
+ case IWL_POWER_BATTERY:
+ final_mode = IWL_POWER_INDEX_3;
+ break;
+ case IWL_POWER_AC:
+ final_mode = IWL_POWER_MODE_CAM;
+ break;
+ default:
+ final_mode = mode;
+ break;
+ }
+
+ iwl3945_update_power_cmd(priv, &cmd, final_mode);
+
+ rc = iwl3945_send_cmd_pdu(priv, POWER_TABLE_CMD, sizeof(cmd), &cmd);
+
+ if (final_mode == IWL_POWER_MODE_CAM)
+ clear_bit(STATUS_POWER_PMI, &priv->status);
+ else
+ set_bit(STATUS_POWER_PMI, &priv->status);
+
+ return rc;
+}
+
+int iwl3945_is_network_packet(struct iwl3945_priv *priv, struct ieee80211_hdr *header)
+{
+ /* Filter incoming packets to determine if they are targeted toward
+ * this network, discarding packets coming from ourselves */
+ switch (priv->iw_mode) {
+ case IEEE80211_IF_TYPE_IBSS: /* Header: Dest. | Source | BSSID */
+ /* packets from our adapter are dropped (echo) */
+ if (!compare_ether_addr(header->addr2, priv->mac_addr))
+ return 0;
+ /* {broad,multi}cast packets to our IBSS go through */
+ if (is_multicast_ether_addr(header->addr1))
+ return !compare_ether_addr(header->addr3, priv->bssid);
+ /* packets to our adapter go through */
+ return !compare_ether_addr(header->addr1, priv->mac_addr);
+ case IEEE80211_IF_TYPE_STA: /* Header: Dest. | AP{BSSID} | Source */
+ /* packets from our adapter are dropped (echo) */
+ if (!compare_ether_addr(header->addr3, priv->mac_addr))
+ return 0;
+ /* {broad,multi}cast packets to our BSS go through */
+ if (is_multicast_ether_addr(header->addr1))
+ return !compare_ether_addr(header->addr2, priv->bssid);
+ /* packets to our adapter go through */
+ return !compare_ether_addr(header->addr1, priv->mac_addr);
+ }
+
+ return 1;
+}
+
+#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
+
+static const char *iwl3945_get_tx_fail_reason(u32 status)
+{
+ switch (status & TX_STATUS_MSK) {
+ case TX_STATUS_SUCCESS:
+ return "SUCCESS";
+ TX_STATUS_ENTRY(SHORT_LIMIT);
+ TX_STATUS_ENTRY(LONG_LIMIT);
+ TX_STATUS_ENTRY(FIFO_UNDERRUN);
+ TX_STATUS_ENTRY(MGMNT_ABORT);
+ TX_STATUS_ENTRY(NEXT_FRAG);
+ TX_STATUS_ENTRY(LIFE_EXPIRE);
+ TX_STATUS_ENTRY(DEST_PS);
+ TX_STATUS_ENTRY(ABORTED);
+ TX_STATUS_ENTRY(BT_RETRY);
+ TX_STATUS_ENTRY(STA_INVALID);
+ TX_STATUS_ENTRY(FRAG_DROPPED);
+ TX_STATUS_ENTRY(TID_DISABLE);
+ TX_STATUS_ENTRY(FRAME_FLUSHED);
+ TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL);
+ TX_STATUS_ENTRY(TX_LOCKED);
+ TX_STATUS_ENTRY(NO_BEACON_ON_RADAR);
+ }
+
+ return "UNKNOWN";
+}
+
+/**
+ * iwl3945_scan_cancel - Cancel any currently executing HW scan
+ *
+ * NOTE: priv->mutex is not required before calling this function
+ */
+static int iwl3945_scan_cancel(struct iwl3945_priv *priv)
+{
+ if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
+ clear_bit(STATUS_SCANNING, &priv->status);
+ return 0;
+ }
+
+ if (test_bit(STATUS_SCANNING, &priv->status)) {
+ if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+ IWL_DEBUG_SCAN("Queuing scan abort.\n");
+ set_bit(STATUS_SCAN_ABORTING, &priv->status);
+ queue_work(priv->workqueue, &priv->abort_scan);
+
+ } else
+ IWL_DEBUG_SCAN("Scan abort already in progress.\n");
+
+ return test_bit(STATUS_SCANNING, &priv->status);
+ }
+
+ return 0;
+}
+
+/**
+ * iwl3945_scan_cancel_timeout - Cancel any currently executing HW scan
+ * @ms: amount of time to wait (in milliseconds) for scan to abort
+ *
+ * NOTE: priv->mutex must be held before calling this function
+ */
+static int iwl3945_scan_cancel_timeout(struct iwl3945_priv *priv, unsigned long ms)
+{
+ unsigned long now = jiffies;
+ int ret;
+
+ ret = iwl3945_scan_cancel(priv);
+ if (ret && ms) {
+ mutex_unlock(&priv->mutex);
+ while (!time_after(jiffies, now + msecs_to_jiffies(ms)) &&
+ test_bit(STATUS_SCANNING, &priv->status))
+ msleep(1);
+ mutex_lock(&priv->mutex);
+
+ return test_bit(STATUS_SCANNING, &priv->status);
+ }
+
+ return ret;
+}
+
+static void iwl3945_sequence_reset(struct iwl3945_priv *priv)
+{
+ /* Reset ieee stats */
+
+ /* We don't reset the net_device_stats (ieee->stats) on
+ * re-association */
+
+ priv->last_seq_num = -1;
+ priv->last_frag_num = -1;
+ priv->last_packet_time = 0;
+
+ iwl3945_scan_cancel(priv);
+}
+
+#define MAX_UCODE_BEACON_INTERVAL 1024
+#define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
+
+static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val)
+{
+ u16 new_val = 0;
+ u16 beacon_factor = 0;
+
+ beacon_factor =
+ (beacon_val + MAX_UCODE_BEACON_INTERVAL)
+ / MAX_UCODE_BEACON_INTERVAL;
+ new_val = beacon_val / beacon_factor;
+
+ return cpu_to_le16(new_val);
+}
+
+static void iwl3945_setup_rxon_timing(struct iwl3945_priv *priv)
+{
+ u64 interval_tm_unit;
+ u64 tsf, result;
+ unsigned long flags;
+ struct ieee80211_conf *conf = NULL;
+ u16 beacon_int = 0;
+
+ conf = ieee80211_get_hw_conf(priv->hw);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp1);
+ priv->rxon_timing.timestamp.dw[0] = cpu_to_le32(priv->timestamp0);
+
+ priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
+
+ tsf = priv->timestamp1;
+ tsf = ((tsf << 32) | priv->timestamp0);
+
+ beacon_int = priv->beacon_int;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
+ if (beacon_int == 0) {
+ priv->rxon_timing.beacon_interval = cpu_to_le16(100);
+ priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
+ } else {
+ priv->rxon_timing.beacon_interval =
+ cpu_to_le16(beacon_int);
+ priv->rxon_timing.beacon_interval =
+ iwl3945_adjust_beacon_interval(
+ le16_to_cpu(priv->rxon_timing.beacon_interval));
+ }
+
+ priv->rxon_timing.atim_window = 0;
+ } else {
+ priv->rxon_timing.beacon_interval =
+ iwl3945_adjust_beacon_interval(conf->beacon_int);
+ /* TODO: we need to get atim_window from upper stack
+ * for now we set to 0 */
+ priv->rxon_timing.atim_window = 0;
+ }
+
+ interval_tm_unit =
+ (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
+ result = do_div(tsf, interval_tm_unit);
+ priv->rxon_timing.beacon_init_val =
+ cpu_to_le32((u32) ((u64) interval_tm_unit - result));
+
+ IWL_DEBUG_ASSOC
+ ("beacon interval %d beacon timer %d beacon tim %d\n",
+ le16_to_cpu(priv->rxon_timing.beacon_interval),
+ le32_to_cpu(priv->rxon_timing.beacon_init_val),
+ le16_to_cpu(priv->rxon_timing.atim_window));
+}
+
+static int iwl3945_scan_initiate(struct iwl3945_priv *priv)
+{
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+ IWL_ERROR("APs don't scan.\n");
+ return 0;
+ }
+
+ if (!iwl3945_is_ready_rf(priv)) {
+ IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
+ return -EIO;
+ }
+
+ if (test_bit(STATUS_SCANNING, &priv->status)) {
+ IWL_DEBUG_SCAN("Scan already in progress.\n");
+ return -EAGAIN;
+ }
+
+ if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+ IWL_DEBUG_SCAN("Scan request while abort pending. "
+ "Queuing.\n");
+ return -EAGAIN;
+ }
+
+ IWL_DEBUG_INFO("Starting scan...\n");
+ priv->scan_bands = 2;
+ set_bit(STATUS_SCANNING, &priv->status);
+ priv->scan_start = jiffies;
+ priv->scan_pass_start = priv->scan_start;
+
+ queue_work(priv->workqueue, &priv->request_scan);
+
+ return 0;
+}
+
+static int iwl3945_set_rxon_hwcrypto(struct iwl3945_priv *priv, int hw_decrypt)
+{
+ struct iwl3945_rxon_cmd *rxon = &priv->staging_rxon;
+
+ if (hw_decrypt)
+ rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
+ else
+ rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
+
+ return 0;
+}
+
+static void iwl3945_set_flags_for_phymode(struct iwl3945_priv *priv, u8 phymode)
+{
+ if (phymode == MODE_IEEE80211A) {
+ priv->staging_rxon.flags &=
+ ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
+ | RXON_FLG_CCK_MSK);
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ } else {
+ /* Copied from iwl3945_bg_post_associate() */
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
+ priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
+ priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
+ }
+}
+
+/*
+ * initialize rxon structure with default values from eeprom
+ */
+static void iwl3945_connection_init_rx_config(struct iwl3945_priv *priv)
+{
+ const struct iwl3945_channel_info *ch_info;
+
+ memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
+
+ switch (priv->iw_mode) {
+ case IEEE80211_IF_TYPE_AP:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
+ break;
+
+ case IEEE80211_IF_TYPE_STA:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
+ priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
+
+ case IEEE80211_IF_TYPE_IBSS:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
+ priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
+ priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
+ RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
+
+ case IEEE80211_IF_TYPE_MNTR:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
+ priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
+ RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
+ }
+
+#if 0
+ /* TODO: Figure out when short_preamble would be set and cache from
+ * that */
+ if (!hw_to_local(priv->hw)->short_preamble)
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+#endif
+
+ ch_info = iwl3945_get_channel_info(priv, priv->phymode,
+ le16_to_cpu(priv->staging_rxon.channel));
+
+ if (!ch_info)
+ ch_info = &priv->channel_info[0];
+
+ /*
+ * in some case A channels are all non IBSS
+ * in this case force B/G channel
+ */
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
+ !(is_channel_ibss(ch_info)))
+ ch_info = &priv->channel_info[0];
+
+ priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
+ if (is_channel_a_band(ch_info))
+ priv->phymode = MODE_IEEE80211A;
+ else
+ priv->phymode = MODE_IEEE80211G;
+
+ iwl3945_set_flags_for_phymode(priv, priv->phymode);
+
+ priv->staging_rxon.ofdm_basic_rates =
+ (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+ priv->staging_rxon.cck_basic_rates =
+ (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
+}
+
+static int iwl3945_set_mode(struct iwl3945_priv *priv, int mode)
+{
+ if (mode == IEEE80211_IF_TYPE_IBSS) {
+ const struct iwl3945_channel_info *ch_info;
+
+ ch_info = iwl3945_get_channel_info(priv,
+ priv->phymode,
+ le16_to_cpu(priv->staging_rxon.channel));
+
+ if (!ch_info || !is_channel_ibss(ch_info)) {
+ IWL_ERROR("channel %d not IBSS channel\n",
+ le16_to_cpu(priv->staging_rxon.channel));
+ return -EINVAL;
+ }
+ }
+
+ priv->iw_mode = mode;
+
+ iwl3945_connection_init_rx_config(priv);
+ memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
+
+ iwl3945_clear_stations_table(priv);
+
+ /* dont commit rxon if rf-kill is on*/
+ if (!iwl3945_is_ready_rf(priv))
+ return -EAGAIN;
+
+ cancel_delayed_work(&priv->scan_check);
+ if (iwl3945_scan_cancel_timeout(priv, 100)) {
+ IWL_WARNING("Aborted scan still in progress after 100ms\n");
+ IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
+ return -EAGAIN;
+ }
+
+ iwl3945_commit_rxon(priv);
+
+ return 0;
+}
+
+static void iwl3945_build_tx_cmd_hwcrypto(struct iwl3945_priv *priv,
+ struct ieee80211_tx_control *ctl,
+ struct iwl3945_cmd *cmd,
+ struct sk_buff *skb_frag,
+ int last_frag)
+{
+ struct iwl3945_hw_key *keyinfo = &priv->stations[ctl->key_idx].keyinfo;
+
+ switch (keyinfo->alg) {
+ case ALG_CCMP:
+ cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM;
+ memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen);
+ IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
+ break;
+
+ case ALG_TKIP:
+#if 0
+ cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP;
+
+ if (last_frag)
+ memcpy(cmd->cmd.tx.tkip_mic.byte, skb_frag->tail - 8,
+ 8);
+ else
+ memset(cmd->cmd.tx.tkip_mic.byte, 0, 8);
+#endif
+ break;
+
+ case ALG_WEP:
+ cmd->cmd.tx.sec_ctl = TX_CMD_SEC_WEP |
+ (ctl->key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT;
+
+ if (keyinfo->keylen == 13)
+ cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128;
+
+ memcpy(&cmd->cmd.tx.key[3], keyinfo->key, keyinfo->keylen);
+
+ IWL_DEBUG_TX("Configuring packet for WEP encryption "
+ "with key %d\n", ctl->key_idx);
+ break;
+
+ default:
+ printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg);
+ break;
+ }
+}
+
+/*
+ * handle build REPLY_TX command notification.
+ */
+static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv,
+ struct iwl3945_cmd *cmd,
+ struct ieee80211_tx_control *ctrl,
+ struct ieee80211_hdr *hdr,
+ int is_unicast, u8 std_id)
+{
+ __le16 *qc;
+ u16 fc = le16_to_cpu(hdr->frame_control);
+ __le32 tx_flags = cmd->cmd.tx.tx_flags;
+
+ cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+ if (!(ctrl->flags & IEEE80211_TXCTL_NO_ACK)) {
+ tx_flags |= TX_CMD_FLG_ACK_MSK;
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
+ tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+ if (ieee80211_is_probe_response(fc) &&
+ !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
+ tx_flags |= TX_CMD_FLG_TSF_MSK;
+ } else {
+ tx_flags &= (~TX_CMD_FLG_ACK_MSK);
+ tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+ }
+
+ cmd->cmd.tx.sta_id = std_id;
+ if (ieee80211_get_morefrag(hdr))
+ tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
+
+ qc = ieee80211_get_qos_ctrl(hdr);
+ if (qc) {
+ cmd->cmd.tx.tid_tspec = (u8) (le16_to_cpu(*qc) & 0xf);
+ tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
+ } else
+ tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+
+ if (ctrl->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
+ tx_flags |= TX_CMD_FLG_RTS_MSK;
+ tx_flags &= ~TX_CMD_FLG_CTS_MSK;
+ } else if (ctrl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
+ tx_flags &= ~TX_CMD_FLG_RTS_MSK;
+ tx_flags |= TX_CMD_FLG_CTS_MSK;
+ }
+
+ if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
+ tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
+
+ tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
+ if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ ||
+ (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ)
+ cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3);
+ else
+ cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2);
+ } else
+ cmd->cmd.tx.timeout.pm_frame_timeout = 0;
+
+ cmd->cmd.tx.driver_txop = 0;
+ cmd->cmd.tx.tx_flags = tx_flags;
+ cmd->cmd.tx.next_frame_len = 0;
+}
+
+/**
+ * iwl3945_get_sta_id - Find station's index within station table
+ */
+static int iwl3945_get_sta_id(struct iwl3945_priv *priv, struct ieee80211_hdr *hdr)
+{
+ int sta_id;
+ u16 fc = le16_to_cpu(hdr->frame_control);
+
+ /* If this frame is broadcast or management, use broadcast station id */
+ if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
+ is_multicast_ether_addr(hdr->addr1))
+ return priv->hw_setting.bcast_sta_id;
+
+ switch (priv->iw_mode) {
+
+ /* If we are a client station in a BSS network, use the special
+ * AP station entry (that's the only station we communicate with) */
+ case IEEE80211_IF_TYPE_STA:
+ return IWL_AP_ID;
+
+ /* If we are an AP, then find the station, or use BCAST */
+ case IEEE80211_IF_TYPE_AP:
+ sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
+ if (sta_id != IWL_INVALID_STATION)
+ return sta_id;
+ return priv->hw_setting.bcast_sta_id;
+
+ /* If this frame is going out to an IBSS network, find the station,
+ * or create a new station table entry */
+ case IEEE80211_IF_TYPE_IBSS: {
+ DECLARE_MAC_BUF(mac);
+
+ /* Create new station table entry */
+ sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
+ if (sta_id != IWL_INVALID_STATION)
+ return sta_id;
+
+ sta_id = iwl3945_add_station(priv, hdr->addr1, 0, CMD_ASYNC);
+
+ if (sta_id != IWL_INVALID_STATION)
+ return sta_id;
+
+ IWL_DEBUG_DROP("Station %s not in station map. "
+ "Defaulting to broadcast...\n",
+ print_mac(mac, hdr->addr1));
+ iwl3945_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
+ return priv->hw_setting.bcast_sta_id;
+ }
+ default:
+ IWL_WARNING("Unknown mode of operation: %d", priv->iw_mode);
+ return priv->hw_setting.bcast_sta_id;
+ }
+}
+
+/*
+ * start REPLY_TX command process
+ */
+static int iwl3945_tx_skb(struct iwl3945_priv *priv,
+ struct sk_buff *skb, struct ieee80211_tx_control *ctl)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ struct iwl3945_tfd_frame *tfd;
+ u32 *control_flags;
+ int txq_id = ctl->queue;
+ struct iwl3945_tx_queue *txq = NULL;
+ struct iwl3945_queue *q = NULL;
+ dma_addr_t phys_addr;
+ dma_addr_t txcmd_phys;
+ struct iwl3945_cmd *out_cmd = NULL;
+ u16 len, idx, len_org;
+ u8 id, hdr_len, unicast;
+ u8 sta_id;
+ u16 seq_number = 0;
+ u16 fc;
+ __le16 *qc;
+ u8 wait_write_ptr = 0;
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (iwl3945_is_rfkill(priv)) {
+ IWL_DEBUG_DROP("Dropping - RF KILL\n");
+ goto drop_unlock;
+ }
+
+ if (!priv->interface_id) {
+ IWL_DEBUG_DROP("Dropping - !priv->interface_id\n");
+ goto drop_unlock;
+ }
+
+ if ((ctl->tx_rate & 0xFF) == IWL_INVALID_RATE) {
+ IWL_ERROR("ERROR: No TX rate available.\n");
+ goto drop_unlock;
+ }
+
+ unicast = !is_multicast_ether_addr(hdr->addr1);
+ id = 0;
+
+ fc = le16_to_cpu(hdr->frame_control);
+
+#ifdef CONFIG_IWL3945_DEBUG
+ if (ieee80211_is_auth(fc))
+ IWL_DEBUG_TX("Sending AUTH frame\n");
+ else if (ieee80211_is_assoc_request(fc))
+ IWL_DEBUG_TX("Sending ASSOC frame\n");
+ else if (ieee80211_is_reassoc_request(fc))
+ IWL_DEBUG_TX("Sending REASSOC frame\n");
+#endif
+
+ /* drop all data frame if we are not associated */
+ if (!iwl3945_is_associated(priv) && !priv->assoc_id &&
+ ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
+ IWL_DEBUG_DROP("Dropping - !iwl3945_is_associated\n");
+ goto drop_unlock;
+ }
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ hdr_len = ieee80211_get_hdrlen(fc);
+
+ /* Find (or create) index into station table for destination station */
+ sta_id = iwl3945_get_sta_id(priv, hdr);
+ if (sta_id == IWL_INVALID_STATION) {
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
+ print_mac(mac, hdr->addr1));
+ goto drop;
+ }
+
+ IWL_DEBUG_RATE("station Id %d\n", sta_id);
+
+ qc = ieee80211_get_qos_ctrl(hdr);
+ if (qc) {
+ u8 tid = (u8)(le16_to_cpu(*qc) & 0xf);
+ seq_number = priv->stations[sta_id].tid[tid].seq_number &
+ IEEE80211_SCTL_SEQ;
+ hdr->seq_ctrl = cpu_to_le16(seq_number) |
+ (hdr->seq_ctrl &
+ __constant_cpu_to_le16(IEEE80211_SCTL_FRAG));
+ seq_number += 0x10;
+ }
+
+ /* Descriptor for chosen Tx queue */
+ txq = &priv->txq[txq_id];
+ q = &txq->q;
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ /* Set up first empty TFD within this queue's circular TFD buffer */
+ tfd = &txq->bd[q->write_ptr];
+ memset(tfd, 0, sizeof(*tfd));
+ control_flags = (u32 *) tfd;
+ idx = get_cmd_index(q, q->write_ptr, 0);
+
+ /* Set up driver data for this TFD */
+ memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl3945_tx_info));
+ txq->txb[q->write_ptr].skb[0] = skb;
+ memcpy(&(txq->txb[q->write_ptr].status.control),
+ ctl, sizeof(struct ieee80211_tx_control));
+
+ /* Init first empty entry in queue's array of Tx/cmd buffers */
+ out_cmd = &txq->cmd[idx];
+ memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
+ memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx));
+
+ /*
+ * Set up the Tx-command (not MAC!) header.
+ * Store the chosen Tx queue and TFD index within the sequence field;
+ * after Tx, uCode's Tx response will return this value so driver can
+ * locate the frame within the tx queue and do post-tx processing.
+ */
+ out_cmd->hdr.cmd = REPLY_TX;
+ out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
+ INDEX_TO_SEQ(q->write_ptr)));
+
+ /* Copy MAC header from skb into command buffer */
+ memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len);
+
+ /*
+ * Use the first empty entry in this queue's command buffer array
+ * to contain the Tx command and MAC header concatenated together
+ * (payload data will be in another buffer).
+ * Size of this varies, due to varying MAC header length.
+ * If end is not dword aligned, we'll have 2 extra bytes at the end
+ * of the MAC header (device reads on dword boundaries).
+ * We'll tell device about this padding later.
+ */
+ len = priv->hw_setting.tx_cmd_len +
+ sizeof(struct iwl3945_cmd_header) + hdr_len;
+
+ len_org = len;
+ len = (len + 3) & ~3;
+
+ if (len_org != len)
+ len_org = 1;
+ else
+ len_org = 0;
+
+ /* Physical address of this Tx command's header (not MAC header!),
+ * within command buffer array. */
+ txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl3945_cmd) * idx +
+ offsetof(struct iwl3945_cmd, hdr);
+
+ /* Add buffer containing Tx command and MAC(!) header to TFD's
+ * first entry */
+ iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len);
+
+ if (!(ctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
+ iwl3945_build_tx_cmd_hwcrypto(priv, ctl, out_cmd, skb, 0);
+
+ /* Set up TFD's 2nd entry to point directly to remainder of skb,
+ * if any (802.11 null frames have no payload). */
+ len = skb->len - hdr_len;
+ if (len) {
+ phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
+ len, PCI_DMA_TODEVICE);
+ iwl3945_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len);
+ }
+
+ if (!len)
+ /* If there is no payload, then we use only one Tx buffer */
+ *control_flags = TFD_CTL_COUNT_SET(1);
+ else
+ /* Else use 2 buffers.
+ * Tell 3945 about any padding after MAC header */
+ *control_flags = TFD_CTL_COUNT_SET(2) |
+ TFD_CTL_PAD_SET(U32_PAD(len));
+
+ /* Total # bytes to be transmitted */
+ len = (u16)skb->len;
+ out_cmd->cmd.tx.len = cpu_to_le16(len);
+
+ /* TODO need this for burst mode later on */
+ iwl3945_build_tx_cmd_basic(priv, out_cmd, ctl, hdr, unicast, sta_id);
+
+ /* set is_hcca to 0; it probably will never be implemented */
+ iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, ctl, hdr, sta_id, 0);
+
+ out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
+ out_cmd->cmd.tx.tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
+
+ if (!ieee80211_get_morefrag(hdr)) {
+ txq->need_update = 1;
+ if (qc) {
+ u8 tid = (u8)(le16_to_cpu(*qc) & 0xf);
+ priv->stations[sta_id].tid[tid].seq_number = seq_number;
+ }
+ } else {
+ wait_write_ptr = 1;
+ txq->need_update = 0;
+ }
+
+ iwl3945_print_hex_dump(IWL_DL_TX, out_cmd->cmd.payload,
+ sizeof(out_cmd->cmd.tx));
+
+ iwl3945_print_hex_dump(IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr,
+ ieee80211_get_hdrlen(fc));
+
+ /* Tell device the write index *just past* this latest filled TFD */
+ q->write_ptr = iwl3945_queue_inc_wrap(q->write_ptr, q->n_bd);
+ rc = iwl3945_tx_queue_update_write_ptr(priv, txq);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (rc)
+ return rc;
+
+ if ((iwl3945_queue_space(q) < q->high_mark)
+ && priv->mac80211_registered) {
+ if (wait_write_ptr) {
+ spin_lock_irqsave(&priv->lock, flags);
+ txq->need_update = 1;
+ iwl3945_tx_queue_update_write_ptr(priv, txq);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ }
+
+ ieee80211_stop_queue(priv->hw, ctl->queue);
+ }
+
+ return 0;
+
+drop_unlock:
+ spin_unlock_irqrestore(&priv->lock, flags);
+drop:
+ return -1;
+}
+
+static void iwl3945_set_rate(struct iwl3945_priv *priv)
+{
+ const struct ieee80211_hw_mode *hw = NULL;
+ struct ieee80211_rate *rate;
+ int i;
+
+ hw = iwl3945_get_hw_mode(priv, priv->phymode);
+ if (!hw) {
+ IWL_ERROR("Failed to set rate: unable to get hw mode\n");
+ return;
+ }
+
+ priv->active_rate = 0;
+ priv->active_rate_basic = 0;
+
+ IWL_DEBUG_RATE("Setting rates for 802.11%c\n",
+ hw->mode == MODE_IEEE80211A ?
+ 'a' : ((hw->mode == MODE_IEEE80211B) ? 'b' : 'g'));
+
+ for (i = 0; i < hw->num_rates; i++) {
+ rate = &(hw->rates[i]);
+ if ((rate->val < IWL_RATE_COUNT) &&
+ (rate->flags & IEEE80211_RATE_SUPPORTED)) {
+ IWL_DEBUG_RATE("Adding rate index %d (plcp %d)%s\n",
+ rate->val, iwl3945_rates[rate->val].plcp,
+ (rate->flags & IEEE80211_RATE_BASIC) ?
+ "*" : "");
+ priv->active_rate |= (1 << rate->val);
+ if (rate->flags & IEEE80211_RATE_BASIC)
+ priv->active_rate_basic |= (1 << rate->val);
+ } else
+ IWL_DEBUG_RATE("Not adding rate %d (plcp %d)\n",
+ rate->val, iwl3945_rates[rate->val].plcp);
+ }
+
+ IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
+ priv->active_rate, priv->active_rate_basic);
+
+ /*
+ * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
+ * otherwise set it to the default of all CCK rates and 6, 12, 24 for
+ * OFDM
+ */
+ if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
+ priv->staging_rxon.cck_basic_rates =
+ ((priv->active_rate_basic &
+ IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
+ else
+ priv->staging_rxon.cck_basic_rates =
+ (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
+
+ if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
+ priv->staging_rxon.ofdm_basic_rates =
+ ((priv->active_rate_basic &
+ (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
+ IWL_FIRST_OFDM_RATE) & 0xFF;
+ else
+ priv->staging_rxon.ofdm_basic_rates =
+ (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+}
+
+static void iwl3945_radio_kill_sw(struct iwl3945_priv *priv, int disable_radio)
+{
+ unsigned long flags;
+
+ if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status))
+ return;
+
+ IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
+ disable_radio ? "OFF" : "ON");
+
+ if (disable_radio) {
+ iwl3945_scan_cancel(priv);
+ /* FIXME: This is a workaround for AP */
+ if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl3945_write32(priv, CSR_UCODE_DRV_GP1_SET,
+ CSR_UCODE_SW_BIT_RFKILL);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ iwl3945_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0);
+ set_bit(STATUS_RF_KILL_SW, &priv->status);
+ }
+ return;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+ clear_bit(STATUS_RF_KILL_SW, &priv->status);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ /* wake up ucode */
+ msleep(10);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl3945_read32(priv, CSR_UCODE_DRV_GP1);
+ if (!iwl3945_grab_nic_access(priv))
+ iwl3945_release_nic_access(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
+ IWL_DEBUG_RF_KILL("Can not turn radio back on - "
+ "disabled by HW switch\n");
+ return;
+ }
+
+ queue_work(priv->workqueue, &priv->restart);
+ return;
+}
+
+void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb,
+ u32 decrypt_res, struct ieee80211_rx_status *stats)
+{
+ u16 fc =
+ le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control);
+
+ if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK)
+ return;
+
+ if (!(fc & IEEE80211_FCTL_PROTECTED))
+ return;
+
+ IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res);
+ switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
+ case RX_RES_STATUS_SEC_TYPE_TKIP:
+ if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
+ RX_RES_STATUS_BAD_ICV_MIC)
+ stats->flag |= RX_FLAG_MMIC_ERROR;
+ case RX_RES_STATUS_SEC_TYPE_WEP:
+ case RX_RES_STATUS_SEC_TYPE_CCMP:
+ if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
+ RX_RES_STATUS_DECRYPT_OK) {
+ IWL_DEBUG_RX("hw decrypt successfully!!!\n");
+ stats->flag |= RX_FLAG_DECRYPTED;
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+void iwl3945_handle_data_packet_monitor(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb,
+ void *data, short len,
+ struct ieee80211_rx_status *stats,
+ u16 phy_flags)
+{
+ struct iwl3945_rt_rx_hdr *iwl3945_rt;
+
+ /* First cache any information we need before we overwrite
+ * the information provided in the skb from the hardware */
+ s8 signal = stats->ssi;
+ s8 noise = 0;
+ int rate = stats->rate;
+ u64 tsf = stats->mactime;
+ __le16 phy_flags_hw = cpu_to_le16(phy_flags);
+
+ /* We received data from the HW, so stop the watchdog */
+ if (len > IWL_RX_BUF_SIZE - sizeof(*iwl3945_rt)) {
+ IWL_DEBUG_DROP("Dropping too large packet in monitor\n");
+ return;
+ }
+
+ /* copy the frame data to write after where the radiotap header goes */
+ iwl3945_rt = (void *)rxb->skb->data;
+ memmove(iwl3945_rt->payload, data, len);
+
+ iwl3945_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
+ iwl3945_rt->rt_hdr.it_pad = 0; /* always good to zero */
+
+ /* total header + data */
+ iwl3945_rt->rt_hdr.it_len = cpu_to_le16(sizeof(*iwl3945_rt));
+
+ /* Set the size of the skb to the size of the frame */
+ skb_put(rxb->skb, sizeof(*iwl3945_rt) + len);
+
+ /* Big bitfield of all the fields we provide in radiotap */
+ iwl3945_rt->rt_hdr.it_present =
+ cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) |
+ (1 << IEEE80211_RADIOTAP_FLAGS) |
+ (1 << IEEE80211_RADIOTAP_RATE) |
+ (1 << IEEE80211_RADIOTAP_CHANNEL) |
+ (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
+ (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
+ (1 << IEEE80211_RADIOTAP_ANTENNA));
+
+ /* Zero the flags, we'll add to them as we go */
+ iwl3945_rt->rt_flags = 0;
+
+ iwl3945_rt->rt_tsf = cpu_to_le64(tsf);
+
+ /* Convert to dBm */
+ iwl3945_rt->rt_dbmsignal = signal;
+ iwl3945_rt->rt_dbmnoise = noise;
+
+ /* Convert the channel frequency and set the flags */
+ iwl3945_rt->rt_channelMHz = cpu_to_le16(stats->freq);
+ if (!(phy_flags_hw & RX_RES_PHY_FLAGS_BAND_24_MSK))
+ iwl3945_rt->rt_chbitmask =
+ cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
+ else if (phy_flags_hw & RX_RES_PHY_FLAGS_MOD_CCK_MSK)
+ iwl3945_rt->rt_chbitmask =
+ cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
+ else /* 802.11g */
+ iwl3945_rt->rt_chbitmask =
+ cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ));
+
+ rate = iwl3945_rate_index_from_plcp(rate);
+ if (rate == -1)
+ iwl3945_rt->rt_rate = 0;
+ else
+ iwl3945_rt->rt_rate = iwl3945_rates[rate].ieee;
+
+ /* antenna number */
+ iwl3945_rt->rt_antenna =
+ le16_to_cpu(phy_flags_hw & RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4;
+
+ /* set the preamble flag if we have it */
+ if (phy_flags_hw & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
+ iwl3945_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
+
+ IWL_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
+
+ stats->flag |= RX_FLAG_RADIOTAP;
+ ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats);
+ rxb->skb = NULL;
+}
+
+
+#define IWL_PACKET_RETRY_TIME HZ
+
+int iwl3945_is_duplicate_packet(struct iwl3945_priv *priv, struct ieee80211_hdr *header)
+{
+ u16 sc = le16_to_cpu(header->seq_ctrl);
+ u16 seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
+ u16 frag = sc & IEEE80211_SCTL_FRAG;
+ u16 *last_seq, *last_frag;
+ unsigned long *last_time;
+
+ switch (priv->iw_mode) {
+ case IEEE80211_IF_TYPE_IBSS:{
+ struct list_head *p;
+ struct iwl3945_ibss_seq *entry = NULL;
+ u8 *mac = header->addr2;
+ int index = mac[5] & (IWL_IBSS_MAC_HASH_SIZE - 1);
+
+ __list_for_each(p, &priv->ibss_mac_hash[index]) {
+ entry = list_entry(p, struct iwl3945_ibss_seq, list);
+ if (!compare_ether_addr(entry->mac, mac))
+ break;
+ }
+ if (p == &priv->ibss_mac_hash[index]) {
+ entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
+ if (!entry) {
+ IWL_ERROR("Cannot malloc new mac entry\n");
+ return 0;
+ }
+ memcpy(entry->mac, mac, ETH_ALEN);
+ entry->seq_num = seq;
+ entry->frag_num = frag;
+ entry->packet_time = jiffies;
+ list_add(&entry->list, &priv->ibss_mac_hash[index]);
+ return 0;
+ }
+ last_seq = &entry->seq_num;
+ last_frag = &entry->frag_num;
+ last_time = &entry->packet_time;
+ break;
+ }
+ case IEEE80211_IF_TYPE_STA:
+ last_seq = &priv->last_seq_num;
+ last_frag = &priv->last_frag_num;
+ last_time = &priv->last_packet_time;
+ break;
+ default:
+ return 0;
+ }
+ if ((*last_seq == seq) &&
+ time_after(*last_time + IWL_PACKET_RETRY_TIME, jiffies)) {
+ if (*last_frag == frag)
+ goto drop;
+ if (*last_frag + 1 != frag)
+ /* out-of-order fragment */
+ goto drop;
+ } else
+ *last_seq = seq;
+
+ *last_frag = frag;
+ *last_time = jiffies;
+ return 0;
+
+ drop:
+ return 1;
+}
+
+#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
+
+#include "iwl-spectrum.h"
+
+#define BEACON_TIME_MASK_LOW 0x00FFFFFF
+#define BEACON_TIME_MASK_HIGH 0xFF000000
+#define TIME_UNIT 1024
+
+/*
+ * extended beacon time format
+ * time in usec will be changed into a 32-bit value in 8:24 format
+ * the high 1 byte is the beacon counts
+ * the lower 3 bytes is the time in usec within one beacon interval
+ */
+
+static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval)
+{
+ u32 quot;
+ u32 rem;
+ u32 interval = beacon_interval * 1024;
+
+ if (!interval || !usec)
+ return 0;
+
+ quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
+ rem = (usec % interval) & BEACON_TIME_MASK_LOW;
+
+ return (quot << 24) + rem;
+}
+
+/* base is usually what we get from ucode with each received frame,
+ * the same as HW timer counter counting down
+ */
+
+static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
+{
+ u32 base_low = base & BEACON_TIME_MASK_LOW;
+ u32 addon_low = addon & BEACON_TIME_MASK_LOW;
+ u32 interval = beacon_interval * TIME_UNIT;
+ u32 res = (base & BEACON_TIME_MASK_HIGH) +
+ (addon & BEACON_TIME_MASK_HIGH);
+
+ if (base_low > addon_low)
+ res += base_low - addon_low;
+ else if (base_low < addon_low) {
+ res += interval + base_low - addon_low;
+ res += (1 << 24);
+ } else
+ res += (1 << 24);
+
+ return cpu_to_le32(res);
+}
+
+static int iwl3945_get_measurement(struct iwl3945_priv *priv,
+ struct ieee80211_measurement_params *params,
+ u8 type)
+{
+ struct iwl3945_spectrum_cmd spectrum;
+ struct iwl3945_rx_packet *res;
+ struct iwl3945_host_cmd cmd = {
+ .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
+ .data = (void *)&spectrum,
+ .meta.flags = CMD_WANT_SKB,
+ };
+ u32 add_time = le64_to_cpu(params->start_time);
+ int rc;
+ int spectrum_resp_status;
+ int duration = le16_to_cpu(params->duration);
+
+ if (iwl3945_is_associated(priv))
+ add_time =
+ iwl3945_usecs_to_beacons(
+ le64_to_cpu(params->start_time) - priv->last_tsf,
+ le16_to_cpu(priv->rxon_timing.beacon_interval));
+
+ memset(&spectrum, 0, sizeof(spectrum));
+
+ spectrum.channel_count = cpu_to_le16(1);
+ spectrum.flags =
+ RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
+ spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
+ cmd.len = sizeof(spectrum);
+ spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
+
+ if (iwl3945_is_associated(priv))
+ spectrum.start_time =
+ iwl3945_add_beacon_time(priv->last_beacon_time,
+ add_time,
+ le16_to_cpu(priv->rxon_timing.beacon_interval));
+ else
+ spectrum.start_time = 0;
+
+ spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
+ spectrum.channels[0].channel = params->channel;
+ spectrum.channels[0].type = type;
+ if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
+ spectrum.flags |= RXON_FLG_BAND_24G_MSK |
+ RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
+
+ rc = iwl3945_send_cmd_sync(priv, &cmd);
+ if (rc)
+ return rc;
+
+ res = (struct iwl3945_rx_packet *)cmd.meta.u.skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
+ rc = -EIO;
+ }
+
+ spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
+ switch (spectrum_resp_status) {
+ case 0: /* Command will be handled */
+ if (res->u.spectrum.id != 0xff) {
+ IWL_DEBUG_INFO("Replaced existing measurement: %d\n",
+ res->u.spectrum.id);
+ priv->measurement_status &= ~MEASUREMENT_READY;
+ }
+ priv->measurement_status |= MEASUREMENT_ACTIVE;
+ rc = 0;
+ break;
+
+ case 1: /* Command will not be handled */
+ rc = -EAGAIN;
+ break;
+ }
+
+ dev_kfree_skb_any(cmd.meta.u.skb);
+
+ return rc;
+}
+#endif
+
+static void iwl3945_txstatus_to_ieee(struct iwl3945_priv *priv,
+ struct iwl3945_tx_info *tx_sta)
+{
+
+ tx_sta->status.ack_signal = 0;
+ tx_sta->status.excessive_retries = 0;
+ tx_sta->status.queue_length = 0;
+ tx_sta->status.queue_number = 0;
+
+ if (in_interrupt())
+ ieee80211_tx_status_irqsafe(priv->hw,
+ tx_sta->skb[0], &(tx_sta->status));
+ else
+ ieee80211_tx_status(priv->hw,
+ tx_sta->skb[0], &(tx_sta->status));
+
+ tx_sta->skb[0] = NULL;
+}
+
+/**
+ * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
+ *
+ * When FW advances 'R' index, all entries between old and new 'R' index
+ * need to be reclaimed. As result, some free space forms. If there is
+ * enough free space (> low mark), wake the stack that feeds us.
+ */
+static int iwl3945_tx_queue_reclaim(struct iwl3945_priv *priv, int txq_id, int index)
+{
+ struct iwl3945_tx_queue *txq = &priv->txq[txq_id];
+ struct iwl3945_queue *q = &txq->q;
+ int nfreed = 0;
+
+ if ((index >= q->n_bd) || (x2_queue_used(q, index) == 0)) {
+ IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
+ "is out of range [0-%d] %d %d.\n", txq_id,
+ index, q->n_bd, q->write_ptr, q->read_ptr);
+ return 0;
+ }
+
+ for (index = iwl3945_queue_inc_wrap(index, q->n_bd);
+ q->read_ptr != index;
+ q->read_ptr = iwl3945_queue_inc_wrap(q->read_ptr, q->n_bd)) {
+ if (txq_id != IWL_CMD_QUEUE_NUM) {
+ iwl3945_txstatus_to_ieee(priv,
+ &(txq->txb[txq->q.read_ptr]));
+ iwl3945_hw_txq_free_tfd(priv, txq);
+ } else if (nfreed > 1) {
+ IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index,
+ q->write_ptr, q->read_ptr);
+ queue_work(priv->workqueue, &priv->restart);
+ }
+ nfreed++;
+ }
+
+ if (iwl3945_queue_space(q) > q->low_mark && (txq_id >= 0) &&
+ (txq_id != IWL_CMD_QUEUE_NUM) &&
+ priv->mac80211_registered)
+ ieee80211_wake_queue(priv->hw, txq_id);
+
+
+ return nfreed;
+}
+
+static int iwl3945_is_tx_success(u32 status)
+{
+ return (status & 0xFF) == 0x1;
+}
+
+/******************************************************************************
+ *
+ * Generic RX handler implementations
+ *
+ ******************************************************************************/
+/**
+ * iwl3945_rx_reply_tx - Handle Tx response
+ */
+static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ u16 sequence = le16_to_cpu(pkt->hdr.sequence);
+ int txq_id = SEQ_TO_QUEUE(sequence);
+ int index = SEQ_TO_INDEX(sequence);
+ struct iwl3945_tx_queue *txq = &priv->txq[txq_id];
+ struct ieee80211_tx_status *tx_status;
+ struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
+ u32 status = le32_to_cpu(tx_resp->status);
+
+ if ((index >= txq->q.n_bd) || (x2_queue_used(&txq->q, index) == 0)) {
+ IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
+ "is out of range [0-%d] %d %d\n", txq_id,
+ index, txq->q.n_bd, txq->q.write_ptr,
+ txq->q.read_ptr);
+ return;
+ }
+
+ tx_status = &(txq->txb[txq->q.read_ptr].status);
+
+ tx_status->retry_count = tx_resp->failure_frame;
+ tx_status->queue_number = status;
+ tx_status->queue_length = tx_resp->bt_kill_count;
+ tx_status->queue_length |= tx_resp->failure_rts;
+
+ tx_status->flags =
+ iwl3945_is_tx_success(status) ? IEEE80211_TX_STATUS_ACK : 0;
+
+ tx_status->control.tx_rate = iwl3945_rate_index_from_plcp(tx_resp->rate);
+
+ IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n",
+ txq_id, iwl3945_get_tx_fail_reason(status), status,
+ tx_resp->rate, tx_resp->failure_frame);
+
+ IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index);
+ if (index != -1)
+ iwl3945_tx_queue_reclaim(priv, txq_id, index);
+
+ if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
+ IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
+}
+
+
+static void iwl3945_rx_reply_alive(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl3945_alive_resp *palive;
+ struct work_struct *pwork;
+
+ palive = &pkt->u.alive_frame;
+
+ IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
+ "0x%01X 0x%01X\n",
+ palive->is_valid, palive->ver_type,
+ palive->ver_subtype);
+
+ if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
+ IWL_DEBUG_INFO("Initialization Alive received.\n");
+ memcpy(&priv->card_alive_init,
+ &pkt->u.alive_frame,
+ sizeof(struct iwl3945_init_alive_resp));
+ pwork = &priv->init_alive_start;
+ } else {
+ IWL_DEBUG_INFO("Runtime Alive received.\n");
+ memcpy(&priv->card_alive, &pkt->u.alive_frame,
+ sizeof(struct iwl3945_alive_resp));
+ pwork = &priv->alive_start;
+ iwl3945_disable_events(priv);
+ }
+
+ /* We delay the ALIVE response by 5ms to
+ * give the HW RF Kill time to activate... */
+ if (palive->is_valid == UCODE_VALID_OK)
+ queue_delayed_work(priv->workqueue, pwork,
+ msecs_to_jiffies(5));
+ else
+ IWL_WARNING("uCode did not respond OK.\n");
+}
+
+static void iwl3945_rx_reply_add_sta(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+
+ IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
+ return;
+}
+
+static void iwl3945_rx_reply_error(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+
+ IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
+ "seq 0x%04X ser 0x%08X\n",
+ le32_to_cpu(pkt->u.err_resp.error_type),
+ get_cmd_string(pkt->u.err_resp.cmd_id),
+ pkt->u.err_resp.cmd_id,
+ le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
+ le32_to_cpu(pkt->u.err_resp.error_info));
+}
+
+#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
+
+static void iwl3945_rx_csa(struct iwl3945_priv *priv, struct iwl3945_rx_mem_buffer *rxb)
+{
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl3945_rxon_cmd *rxon = (void *)&priv->active_rxon;
+ struct iwl3945_csa_notification *csa = &(pkt->u.csa_notif);
+ IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
+ le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
+ rxon->channel = csa->channel;
+ priv->staging_rxon.channel = csa->channel;
+}
+
+static void iwl3945_rx_spectrum_measure_notif(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl3945_spectrum_notification *report = &(pkt->u.spectrum_notif);
+
+ if (!report->state) {
+ IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO,
+ "Spectrum Measure Notification: Start\n");
+ return;
+ }
+
+ memcpy(&priv->measure_report, report, sizeof(*report));
+ priv->measurement_status |= MEASUREMENT_READY;
+#endif
+}
+
+static void iwl3945_rx_pm_sleep_notif(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWL3945_DEBUG
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl3945_sleep_notification *sleep = &(pkt->u.sleep_notif);
+ IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
+ sleep->pm_sleep_mode, sleep->pm_wakeup_src);
+#endif
+}
+
+static void iwl3945_rx_pm_debug_statistics_notif(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
+ "notification for %s:\n",
+ le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
+ iwl3945_print_hex_dump(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
+}
+
+static void iwl3945_bg_beacon_update(void *p)
+{
+ struct iwl3945_priv *priv = p;
+ struct sk_buff *beacon;
+
+ /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
+ beacon = ieee80211_beacon_get(priv->hw, priv->interface_id, NULL);
+
+ if (!beacon) {
+ IWL_ERROR("update beacon failed\n");
+ return;
+ }
+
+ mutex_lock(&priv->mutex);
+ /* new beacon skb is allocated every time; dispose previous.*/
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = beacon;
+ mutex_unlock(&priv->mutex);
+
+ iwl3945_send_beacon_cmd(priv);
+}
+
+static void iwl3945_rx_beacon_notif(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWL3945_DEBUG
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status);
+ u8 rate = beacon->beacon_notify_hdr.rate;
+
+ IWL_DEBUG_RX("beacon status %x retries %d iss %d "
+ "tsf %d %d rate %d\n",
+ le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
+ beacon->beacon_notify_hdr.failure_frame,
+ le32_to_cpu(beacon->ibss_mgr_status),
+ le32_to_cpu(beacon->high_tsf),
+ le32_to_cpu(beacon->low_tsf), rate);
+#endif
+
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
+ (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
+ queue_work(priv->workqueue, &priv->beacon_update);
+}
+
+/* Service response to REPLY_SCAN_CMD (0x80) */
+static void iwl3945_rx_reply_scan(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWL3945_DEBUG
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl3945_scanreq_notification *notif =
+ (struct iwl3945_scanreq_notification *)pkt->u.raw;
+
+ IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
+#endif
+}
+
+/* Service SCAN_START_NOTIFICATION (0x82) */
+static void iwl3945_rx_scan_start_notif(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl3945_scanstart_notification *notif =
+ (struct iwl3945_scanstart_notification *)pkt->u.raw;
+ priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
+ IWL_DEBUG_SCAN("Scan start: "
+ "%d [802.11%s] "
+ "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
+ notif->channel,
+ notif->band ? "bg" : "a",
+ notif->tsf_high,
+ notif->tsf_low, notif->status, notif->beacon_timer);
+}
+
+/* Service SCAN_RESULTS_NOTIFICATION (0x83) */
+static void iwl3945_rx_scan_results_notif(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl3945_scanresults_notification *notif =
+ (struct iwl3945_scanresults_notification *)pkt->u.raw;
+
+ IWL_DEBUG_SCAN("Scan ch.res: "
+ "%d [802.11%s] "
+ "(TSF: 0x%08X:%08X) - %d "
+ "elapsed=%lu usec (%dms since last)\n",
+ notif->channel,
+ notif->band ? "bg" : "a",
+ le32_to_cpu(notif->tsf_high),
+ le32_to_cpu(notif->tsf_low),
+ le32_to_cpu(notif->statistics[0]),
+ le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf,
+ jiffies_to_msecs(elapsed_jiffies
+ (priv->last_scan_jiffies, jiffies)));
+
+ priv->last_scan_jiffies = jiffies;
+ priv->next_scan_jiffies = 0;
+}
+
+/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
+static void iwl3945_rx_scan_complete_notif(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl3945_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
+
+ IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
+ scan_notif->scanned_channels,
+ scan_notif->tsf_low,
+ scan_notif->tsf_high, scan_notif->status);
+
+ /* The HW is no longer scanning */
+ clear_bit(STATUS_SCAN_HW, &priv->status);
+
+ /* The scan completion notification came in, so kill that timer... */
+ cancel_delayed_work(&priv->scan_check);
+
+ IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
+ (priv->scan_bands == 2) ? "2.4" : "5.2",
+ jiffies_to_msecs(elapsed_jiffies
+ (priv->scan_pass_start, jiffies)));
+
+ /* Remove this scanned band from the list
+ * of pending bands to scan */
+ priv->scan_bands--;
+
+ /* If a request to abort was given, or the scan did not succeed
+ * then we reset the scan state machine and terminate,
+ * re-queuing another scan if one has been requested */
+ if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+ IWL_DEBUG_INFO("Aborted scan completed.\n");
+ clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+ } else {
+ /* If there are more bands on this scan pass reschedule */
+ if (priv->scan_bands > 0)
+ goto reschedule;
+ }
+
+ priv->last_scan_jiffies = jiffies;
+ priv->next_scan_jiffies = 0;
+ IWL_DEBUG_INFO("Setting scan to off\n");
+
+ clear_bit(STATUS_SCANNING, &priv->status);
+
+ IWL_DEBUG_INFO("Scan took %dms\n",
+ jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
+
+ queue_work(priv->workqueue, &priv->scan_completed);
+
+ return;
+
+reschedule:
+ priv->scan_pass_start = jiffies;
+ queue_work(priv->workqueue, &priv->request_scan);
+}
+
+/* Handle notification from uCode that card's power state is changing
+ * due to software, hardware, or critical temperature RFKILL */
+static void iwl3945_rx_card_state_notif(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+ struct iwl3945_rx_packet *pkt = (void *)rxb->skb->data;
+ u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
+ unsigned long status = priv->status;
+
+ IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
+ (flags & HW_CARD_DISABLED) ? "Kill" : "On",
+ (flags & SW_CARD_DISABLED) ? "Kill" : "On");
+
+ iwl3945_write32(priv, CSR_UCODE_DRV_GP1_SET,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+ if (flags & HW_CARD_DISABLED)
+ set_bit(STATUS_RF_KILL_HW, &priv->status);
+ else
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
+
+
+ if (flags & SW_CARD_DISABLED)
+ set_bit(STATUS_RF_KILL_SW, &priv->status);
+ else
+ clear_bit(STATUS_RF_KILL_SW, &priv->status);
+
+ iwl3945_scan_cancel(priv);
+
+ if ((test_bit(STATUS_RF_KILL_HW, &status) !=
+ test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
+ (test_bit(STATUS_RF_KILL_SW, &status) !=
+ test_bit(STATUS_RF_KILL_SW, &priv->status)))
+ queue_work(priv->workqueue, &priv->rf_kill);
+ else
+ wake_up_interruptible(&priv->wait_command_queue);
+}
+
+/**
+ * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
+ *
+ * Setup the RX handlers for each of the reply types sent from the uCode
+ * to the host.
+ *
+ * This function chains into the hardware specific files for them to setup
+ * any hardware specific handlers as well.
+ */
+static void iwl3945_setup_rx_handlers(struct iwl3945_priv *priv)
+{
+ priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive;
+ priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta;
+ priv->rx_handlers[REPLY_ERROR] = iwl3945_rx_reply_error;
+ priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl3945_rx_csa;
+ priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
+ iwl3945_rx_spectrum_measure_notif;
+ priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl3945_rx_pm_sleep_notif;
+ priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
+ iwl3945_rx_pm_debug_statistics_notif;
+ priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif;
+
+ /*
+ * The same handler is used for both the REPLY to a discrete
+ * statistics request from the host as well as for the periodic
+ * statistics notifications (after received beacons) from the uCode.
+ */
+ priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics;
+ priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics;
+
+ priv->rx_handlers[REPLY_SCAN_CMD] = iwl3945_rx_reply_scan;
+ priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl3945_rx_scan_start_notif;
+ priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
+ iwl3945_rx_scan_results_notif;
+ priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
+ iwl3945_rx_scan_complete_notif;
+ priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif;
+ priv->rx_handlers[REPLY_TX] = iwl3945_rx_reply_tx;
+
+ /* Set up hardware specific Rx handlers */
+ iwl3945_hw_rx_handler_setup(priv);
+}
+
+/**
+ * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
+ * @rxb: Rx buffer to reclaim
+ *
+ * If an Rx buffer has an async callback associated with it the callback
+ * will be executed. The attached skb (if present) will only be freed
+ * if the callback returns 1
+ */
+static void iwl3945_tx_cmd_complete(struct iwl3945_priv *priv,
+ struct iwl3945_rx_mem_buffer *rxb)
+{
+ struct iwl3945_rx_packet *pkt = (struct iwl3945_rx_packet *)rxb->skb->data;
+ u16 sequence = le16_to_cpu(pkt->hdr.sequence);
+ int txq_id = SEQ_TO_QUEUE(sequence);
+ int index = SEQ_TO_INDEX(sequence);
+ int huge = sequence & SEQ_HUGE_FRAME;
+ int cmd_index;
+ struct iwl3945_cmd *cmd;
+
+ /* If a Tx command is being handled and it isn't in the actual
+ * command queue then there a command routing bug has been introduced
+ * in the queue management code. */
+ if (txq_id != IWL_CMD_QUEUE_NUM)
+ IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
+ txq_id, pkt->hdr.cmd);
+ BUG_ON(txq_id != IWL_CMD_QUEUE_NUM);
+
+ cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
+ cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
+
+ /* Input error checking is done when commands are added to queue. */
+ if (cmd->meta.flags & CMD_WANT_SKB) {
+ cmd->meta.source->u.skb = rxb->skb;
+ rxb->skb = NULL;
+ } else if (cmd->meta.u.callback &&
+ !cmd->meta.u.callback(priv, cmd, rxb->skb))
+ rxb->skb = NULL;
+
+ iwl3945_tx_queue_reclaim(priv, txq_id, index);
+
+ if (!(cmd->meta.flags & CMD_ASYNC)) {
+ clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+ wake_up_interruptible(&priv->wait_command_queue);
+ }
+}
+
+/************************** RX-FUNCTIONS ****************************/
+/*
+ * Rx theory of operation
+ *
+ * The host allocates 32 DMA target addresses and passes the host address
+ * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
+ * 0 to 31
+ *
+ * Rx Queue Indexes
+ * The host/firmware share two index registers for managing the Rx buffers.
+ *
+ * The READ index maps to the first position that the firmware may be writing
+ * to -- the driver can read up to (but not including) this position and get
+ * good data.
+ * The READ index is managed by the firmware once the card is enabled.
+ *
+ * The WRITE index maps to the last position the driver has read from -- the
+ * position preceding WRITE is the last slot the firmware can place a packet.
+ *
+ * The queue is empty (no good data) if WRITE = READ - 1, and is full if
+ * WRITE = READ.
+ *
+ * During initialization, the host sets up the READ queue position to the first
+ * INDEX position, and WRITE to the last (READ - 1 wrapped)
+ *
+ * When the firmware places a packet in a buffer, it will advance the READ index
+ * and fire the RX interrupt. The driver can then query the READ index and
+ * process as many packets as possible, moving the WRITE index forward as it
+ * resets the Rx queue buffers with new memory.
+ *
+ * The management in the driver is as follows:
+ * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
+ * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
+ * to replenish the iwl->rxq->rx_free.
+ * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
+ * iwl->rxq is replenished and the READ INDEX is updated (updating the
+ * 'processed' and 'read' driver indexes as well)
+ * + A received packet is processed and handed to the kernel network stack,
+ * detached from the iwl->rxq. The driver 'processed' index is updated.
+ * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
+ * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
+ * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
+ * were enough free buffers and RX_STALLED is set it is cleared.
+ *
+ *
+ * Driver sequence:
+ *
+ * iwl3945_rx_queue_alloc() Allocates rx_free
+ * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
+ * iwl3945_rx_queue_restock
+ * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
+ * queue, updates firmware pointers, and updates
+ * the WRITE index. If insufficient rx_free buffers
+ * are available, schedules iwl3945_rx_replenish
+ *
+ * -- enable interrupts --
+ * ISR - iwl3945_rx() Detach iwl3945_rx_mem_buffers from pool up to the
+ * READ INDEX, detaching the SKB from the pool.
+ * Moves the packet buffer from queue to rx_used.
+ * Calls iwl3945_rx_queue_restock to refill any empty
+ * slots.
+ * ...
+ *
+ */
+
+/**
+ * iwl3945_rx_queue_space - Return number of free slots available in queue.
+ */
+static int iwl3945_rx_queue_space(const struct iwl3945_rx_queue *q)
+{
+ int s = q->read - q->write;
+ if (s <= 0)
+ s += RX_QUEUE_SIZE;
+ /* keep some buffer to not confuse full and empty queue */
+ s -= 2;
+ if (s < 0)
+ s = 0;
+ return s;
+}
+
+/**
+ * iwl3945_rx_queue_update_write_ptr - Update the write pointer for the RX queue
+ */
+int iwl3945_rx_queue_update_write_ptr(struct iwl3945_priv *priv, struct iwl3945_rx_queue *q)
+{
+ u32 reg = 0;
+ int rc = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&q->lock, flags);
+
+ if (q->need_update == 0)
+ goto exit_unlock;
+
+ /* If power-saving is in use, make sure device is awake */
+ if (test_bit(STATUS_POWER_PMI, &priv->status)) {
+ reg = iwl3945_read32(priv, CSR_UCODE_DRV_GP1);
+
+ if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
+ iwl3945_set_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ goto exit_unlock;
+ }
+
+ rc = iwl3945_grab_nic_access(priv);
+ if (rc)
+ goto exit_unlock;
+
+ /* Device expects a multiple of 8 */
+ iwl3945_write_direct32(priv, FH_RSCSR_CHNL0_WPTR,
+ q->write & ~0x7);
+ iwl3945_release_nic_access(priv);
+
+ /* Else device is assumed to be awake */
+ } else
+ /* Device expects a multiple of 8 */
+ iwl3945_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write & ~0x7);
+
+
+ q->need_update = 0;
+
+ exit_unlock:
+ spin_unlock_irqrestore(&q->lock, flags);
+ return rc;
+}
+
+/**
+ * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
+ */
+static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl3945_priv *priv,
+ dma_addr_t dma_addr)
+{
+ return cpu_to_le32((u32)dma_addr);
+}
+
+/**
+ * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
+ *
+ * If there are slots in the RX queue that need to be restocked,
+ * and we have free pre-allocated buffers, fill the ranks as much
+ * as we can, pulling from rx_free.
+ *
+ * This moves the 'write' index forward to catch up with 'processed', and
+ * also updates the memory address in the firmware to reference the new
+ * target buffer.
+ */
+static int iwl3945_rx_queue_restock(struct iwl3945_priv *priv)
+{
+ struct iwl3945_rx_queue *rxq = &priv->rxq;
+ struct list_head *element;
+ struct iwl3945_rx_mem_buffer *rxb;
+ unsigned long flags;
+ int write, rc;
+
+ spin_lock_irqsave(&rxq->lock, flags);
+ write = rxq->write & ~0x7;
+ while ((iwl3945_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
+ /* Get next free Rx buffer, remove from free list */
+ element = rxq->rx_free.next;
+ rxb = list_entry(element, struct iwl3945_rx_mem_buffer, list);
+ list_del(element);
+
+ /* Point to Rx buffer via next RBD in circular buffer */
+ rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->dma_addr);
+ rxq->queue[rxq->write] = rxb;
+ rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
+ rxq->free_count--;
+ }
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ /* If the pre-allocated buffer pool is dropping low, schedule to
+ * refill it */
+ if (rxq->free_count <= RX_LOW_WATERMARK)
+ queue_work(priv->workqueue, &priv->rx_replenish);
+
+
+ /* If we've added more space for the firmware to place data, tell it.
+ * Increment device's write pointer in multiples of 8. */
+ if ((write != (rxq->write & ~0x7))
+ || (abs(rxq->write - rxq->read) > 7)) {
+ spin_lock_irqsave(&rxq->lock, flags);
+ rxq->need_update = 1;
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ rc = iwl3945_rx_queue_update_write_ptr(priv, rxq);
+ if (rc)
+ return rc;
+ }
+
+ return 0;
+}
+
+/**
+ * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
+ *
+ * When moving to rx_free an SKB is allocated for the slot.
+ *
+ * Also restock the Rx queue via iwl3945_rx_queue_restock.
+ * This is called as a scheduled work item (except for during initialization)
+ */
+static void iwl3945_rx_allocate(struct iwl3945_priv *priv)
+{
+ struct iwl3945_rx_queue *rxq = &priv->rxq;
+ struct list_head *element;
+ struct iwl3945_rx_mem_buffer *rxb;
+ unsigned long flags;
+ spin_lock_irqsave(&rxq->lock, flags);
+ while (!list_empty(&rxq->rx_used)) {
+ element = rxq->rx_used.next;
+ rxb = list_entry(element, struct iwl3945_rx_mem_buffer, list);
+
+ /* Alloc a new receive buffer */
+ rxb->skb =
+ alloc_skb(IWL_RX_BUF_SIZE, __GFP_NOWARN | GFP_ATOMIC);
+ if (!rxb->skb) {
+ if (net_ratelimit())
+ printk(KERN_CRIT DRV_NAME
+ ": Can not allocate SKB buffers\n");
+ /* We don't reschedule replenish work here -- we will
+ * call the restock method and if it still needs
+ * more buffers it will schedule replenish */
+ break;
+ }
+ priv->alloc_rxb_skb++;
+ list_del(element);
+
+ /* Get physical address of RB/SKB */
+ rxb->dma_addr =
+ pci_map_single(priv->pci_dev, rxb->skb->data,
+ IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+ list_add_tail(&rxb->list, &rxq->rx_free);
+ rxq->free_count++;
+ }
+ spin_unlock_irqrestore(&rxq->lock, flags);
+}
+
+/*
+ * this should be called while priv->lock is locked
+ */
+static void __iwl3945_rx_replenish(void *data)
+{
+ struct iwl3945_priv *priv = data;
+
+ iwl3945_rx_allocate(priv);
+ iwl3945_rx_queue_restock(priv);
+}
+
+
+void iwl3945_rx_replenish(void *data)
+{
+ struct iwl3945_priv *priv = data;
+ unsigned long flags;
+
+ iwl3945_rx_allocate(priv);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl3945_rx_queue_restock(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
+ * If an SKB has been detached, the POOL needs to have its SKB set to NULL
+ * This free routine walks the list of POOL entries and if SKB is set to
+ * non NULL it is unmapped and freed
+ */
+static void iwl3945_rx_queue_free(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq)
+{
+ int i;
+ for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
+ if (rxq->pool[i].skb != NULL) {
+ pci_unmap_single(priv->pci_dev,
+ rxq->pool[i].dma_addr,
+ IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(rxq->pool[i].skb);
+ }
+ }
+
+ pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
+ rxq->dma_addr);
+ rxq->bd = NULL;
+}
+
+int iwl3945_rx_queue_alloc(struct iwl3945_priv *priv)
+{
+ struct iwl3945_rx_queue *rxq = &priv->rxq;
+ struct pci_dev *dev = priv->pci_dev;
+ int i;
+
+ spin_lock_init(&rxq->lock);
+ INIT_LIST_HEAD(&rxq->rx_free);
+ INIT_LIST_HEAD(&rxq->rx_used);
+
+ /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
+ rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr);
+ if (!rxq->bd)
+ return -ENOMEM;
+
+ /* Fill the rx_used queue with _all_ of the Rx buffers */
+ for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
+ list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+
+ /* Set us so that we have processed and used all buffers, but have
+ * not restocked the Rx queue with fresh buffers */
+ rxq->read = rxq->write = 0;
+ rxq->free_count = 0;
+ rxq->need_update = 0;
+ return 0;
+}
+
+void iwl3945_rx_queue_reset(struct iwl3945_priv *priv, struct iwl3945_rx_queue *rxq)
+{
+ unsigned long flags;
+ int i;
+ spin_lock_irqsave(&rxq->lock, flags);
+ INIT_LIST_HEAD(&rxq->rx_free);
+ INIT_LIST_HEAD(&rxq->rx_used);
+ /* Fill the rx_used queue with _all_ of the Rx buffers */
+ for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
+ /* In the reset function, these buffers may have been allocated
+ * to an SKB, so we need to unmap and free potential storage */
+ if (rxq->pool[i].skb != NULL) {
+ pci_unmap_single(priv->pci_dev,
+ rxq->pool[i].dma_addr,
+ IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb(rxq->pool[i].skb);
+ rxq->pool[i].skb = NULL;
+ }
+ list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+ }
+
+ /* Set us so that we have processed and used all buffers, but have
+ * not restocked the Rx queue with fresh buffers */
+ rxq->read = rxq->write = 0;
+ rxq->free_count = 0;
+ spin_unlock_irqrestore(&rxq->lock, flags);
+}
+
+/* Convert linear signal-to-noise ratio into dB */
+static u8 ratio2dB[100] = {
+/* 0 1 2 3 4 5 6 7 8 9 */
+ 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
+ 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
+ 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
+ 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
+ 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
+ 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
+ 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
+ 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
+ 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
+ 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
+};
+
+/* Calculates a relative dB value from a ratio of linear
+ * (i.e. not dB) signal levels.
+ * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
+int iwl3945_calc_db_from_ratio(int sig_ratio)
+{
+ /* Anything above 1000:1 just report as 60 dB */
+ if (sig_ratio > 1000)
+ return 60;
+
+ /* Above 100:1, divide by 10 and use table,
+ * add 20 dB to make up for divide by 10 */
+ if (sig_ratio > 100)
+ return (20 + (int)ratio2dB[sig_ratio/10]);
+
+ /* We shouldn't see this */
+ if (sig_ratio < 1)
+ return 0;
+
+ /* Use table for ratios 1:1 - 99:1 */
+ return (int)ratio2dB[sig_ratio];
+}
+
+#define PERFECT_RSSI (-20) /* dBm */
+#define WORST_RSSI (-95) /* dBm */
+#define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
+
+/* Calculate an indication of rx signal quality (a percentage, not dBm!).
+ * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
+ * about formulas used below. */
+int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm)
+{
+ int sig_qual;
+ int degradation = PERFECT_RSSI - rssi_dbm;
+
+ /* If we get a noise measurement, use signal-to-noise ratio (SNR)
+ * as indicator; formula is (signal dbm - noise dbm).
+ * SNR at or above 40 is a great signal (100%).
+ * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
+ * Weakest usable signal is usually 10 - 15 dB SNR. */
+ if (noise_dbm) {
+ if (rssi_dbm - noise_dbm >= 40)
+ return 100;
+ else if (rssi_dbm < noise_dbm)
+ return 0;
+ sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
+
+ /* Else use just the signal level.
+ * This formula is a least squares fit of data points collected and
+ * compared with a reference system that had a percentage (%) display
+ * for signal quality. */
+ } else
+ sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
+ (15 * RSSI_RANGE + 62 * degradation)) /
+ (RSSI_RANGE * RSSI_RANGE);
+
+ if (sig_qual > 100)
+ sig_qual = 100;
+ else if (sig_qual < 1)
+ sig_qual = 0;
+
+ return sig_qual;
+}
+
+/**
+ * iwl3945_rx_handle - Main entry function for receiving responses from uCode
+ *
+ * Uses the priv->rx_handlers callback function array to invoke
+ * the appropriate handlers, including command responses,
+ * frame-received notifications, and other notifications.
+ */
+static void iwl3945_rx_handle(struct iwl3945_priv *priv)
+{
+ struct iwl3945_rx_mem_buffer *rxb;
+ struct iwl3945_rx_packet *pkt;
+ struct iwl3945_rx_queue *rxq = &priv->rxq;
+ u32 r, i;
+ int reclaim;
+ unsigned long flags;
+ u8 fill_rx = 0;
+ u32 count = 0;
+
+ /* uCode's read index (stored in shared DRAM) indicates the last Rx
+ * buffer that the driver may process (last buffer filled by ucode). */
+ r = iwl3945_hw_get_rx_read(priv);
+ i = rxq->read;
+
+ if (iwl3945_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
+ fill_rx = 1;
+ /* Rx interrupt, but nothing sent from uCode */
+ if (i == r)
+ IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i);
+
+ while (i != r) {
+ rxb = rxq->queue[i];
+
+ /* If an RXB doesn't have a Rx queue slot associated with it,
+ * then a bug has been introduced in the queue refilling
+ * routines -- catch it here */
+ BUG_ON(rxb == NULL);
+
+ rxq->queue[i] = NULL;
+
+ pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
+ IWL_RX_BUF_SIZE,
+ PCI_DMA_FROMDEVICE);
+ pkt = (struct iwl3945_rx_packet *)rxb->skb->data;
+
+ /* Reclaim a command buffer only if this packet is a response
+ * to a (driver-originated) command.
+ * If the packet (e.g. Rx frame) originated from uCode,
+ * there is no command buffer to reclaim.
+ * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
+ * but apparently a few don't get set; catch them here. */
+ reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
+ (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
+ (pkt->hdr.cmd != REPLY_TX);
+
+ /* Based on type of command response or notification,
+ * handle those that need handling via function in
+ * rx_handlers table. See iwl3945_setup_rx_handlers() */
+ if (priv->rx_handlers[pkt->hdr.cmd]) {
+ IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR,
+ "r = %d, i = %d, %s, 0x%02x\n", r, i,
+ get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
+ priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
+ } else {
+ /* No handling needed */
+ IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR,
+ "r %d i %d No handler needed for %s, 0x%02x\n",
+ r, i, get_cmd_string(pkt->hdr.cmd),
+ pkt->hdr.cmd);
+ }
+
+ if (reclaim) {
+ /* Invoke any callbacks, transfer the skb to caller, and
+ * fire off the (possibly) blocking iwl3945_send_cmd()
+ * as we reclaim the driver command queue */
+ if (rxb && rxb->skb)
+ iwl3945_tx_cmd_complete(priv, rxb);
+ else
+ IWL_WARNING("Claim null rxb?\n");
+ }
+
+ /* For now we just don't re-use anything. We can tweak this
+ * later to try and re-use notification packets and SKBs that
+ * fail to Rx correctly */
+ if (rxb->skb != NULL) {
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb_any(rxb->skb);
+ rxb->skb = NULL;
+ }
+
+ pci_unmap_single(priv->pci_dev, rxb->dma_addr,
+ IWL_RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
+ spin_lock_irqsave(&rxq->lock, flags);
+ list_add_tail(&rxb->list, &priv->rxq.rx_used);
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ i = (i + 1) & RX_QUEUE_MASK;
+ /* If there are a lot of unused frames,
+ * restock the Rx queue so ucode won't assert. */
+ if (fill_rx) {
+ count++;
+ if (count >= 8) {
+ priv->rxq.read = i;
+ __iwl3945_rx_replenish(priv);
+ count = 0;
+ }
+ }
+ }
+
+ /* Backtrack one entry */
+ priv->rxq.read = i;
+ iwl3945_rx_queue_restock(priv);
+}
+
+/**
+ * iwl3945_tx_queue_update_write_ptr - Send new write index to hardware
+ */
+static int iwl3945_tx_queue_update_write_ptr(struct iwl3945_priv *priv,
+ struct iwl3945_tx_queue *txq)
+{
+ u32 reg = 0;
+ int rc = 0;
+ int txq_id = txq->q.id;
+
+ if (txq->need_update == 0)
+ return rc;
+
+ /* if we're trying to save power */
+ if (test_bit(STATUS_POWER_PMI, &priv->status)) {
+ /* wake up nic if it's powered down ...
+ * uCode will wake up, and interrupt us again, so next
+ * time we'll skip this part. */
+ reg = iwl3945_read32(priv, CSR_UCODE_DRV_GP1);
+
+ if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
+ IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg);
+ iwl3945_set_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ return rc;
+ }
+
+ /* restore this queue's parameters in nic hardware. */
+ rc = iwl3945_grab_nic_access(priv);
+ if (rc)
+ return rc;
+ iwl3945_write_direct32(priv, HBUS_TARG_WRPTR,
+ txq->q.write_ptr | (txq_id << 8));
+ iwl3945_release_nic_access(priv);
+
+ /* else not in power-save mode, uCode will never sleep when we're
+ * trying to tx (during RFKILL, we're not trying to tx). */
+ } else
+ iwl3945_write32(priv, HBUS_TARG_WRPTR,
+ txq->q.write_ptr | (txq_id << 8));
+
+ txq->need_update = 0;
+
+ return rc;
+}
+
+#ifdef CONFIG_IWL3945_DEBUG
+static void iwl3945_print_rx_config_cmd(struct iwl3945_rxon_cmd *rxon)
+{
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_RADIO("RX CONFIG:\n");
+ iwl3945_print_hex_dump(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
+ IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
+ IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
+ IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
+ le32_to_cpu(rxon->filter_flags));
+ IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
+ IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
+ rxon->ofdm_basic_rates);
+ IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
+ IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
+ print_mac(mac, rxon->node_addr));
+ IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
+ print_mac(mac, rxon->bssid_addr));
+ IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
+}
+#endif
+
+static void iwl3945_enable_interrupts(struct iwl3945_priv *priv)
+{
+ IWL_DEBUG_ISR("Enabling interrupts\n");
+ set_bit(STATUS_INT_ENABLED, &priv->status);
+ iwl3945_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
+}
+
+static inline void iwl3945_disable_interrupts(struct iwl3945_priv *priv)
+{
+ clear_bit(STATUS_INT_ENABLED, &priv->status);
+
+ /* disable interrupts from uCode/NIC to host */
+ iwl3945_write32(priv, CSR_INT_MASK, 0x00000000);
+
+ /* acknowledge/clear/reset any interrupts still pending
+ * from uCode or flow handler (Rx/Tx DMA) */
+ iwl3945_write32(priv, CSR_INT, 0xffffffff);
+ iwl3945_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
+ IWL_DEBUG_ISR("Disabled interrupts\n");
+}
+
+static const char *desc_lookup(int i)
+{
+ switch (i) {
+ case 1:
+ return "FAIL";
+ case 2:
+ return "BAD_PARAM";
+ case 3:
+ return "BAD_CHECKSUM";
+ case 4:
+ return "NMI_INTERRUPT";
+ case 5:
+ return "SYSASSERT";
+ case 6:
+ return "FATAL_ERROR";
+ }
+
+ return "UNKNOWN";
+}
+
+#define ERROR_START_OFFSET (1 * sizeof(u32))
+#define ERROR_ELEM_SIZE (7 * sizeof(u32))
+
+static void iwl3945_dump_nic_error_log(struct iwl3945_priv *priv)
+{
+ u32 i;
+ u32 desc, time, count, base, data1;
+ u32 blink1, blink2, ilink1, ilink2;
+ int rc;
+
+ base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
+
+ if (!iwl3945_hw_valid_rtc_data_addr(base)) {
+ IWL_ERROR("Not valid error log pointer 0x%08X\n", base);
+ return;
+ }
+
+ rc = iwl3945_grab_nic_access(priv);
+ if (rc) {
+ IWL_WARNING("Can not read from adapter at this time.\n");
+ return;
+ }
+
+ count = iwl3945_read_targ_mem(priv, base);
+
+ if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
+ IWL_ERROR("Start IWL Error Log Dump:\n");
+ IWL_ERROR("Status: 0x%08lX, Config: %08X count: %d\n",
+ priv->status, priv->config, count);
+ }
+
+ IWL_ERROR("Desc Time asrtPC blink2 "
+ "ilink1 nmiPC Line\n");
+ for (i = ERROR_START_OFFSET;
+ i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET;
+ i += ERROR_ELEM_SIZE) {
+ desc = iwl3945_read_targ_mem(priv, base + i);
+ time =
+ iwl3945_read_targ_mem(priv, base + i + 1 * sizeof(u32));
+ blink1 =
+ iwl3945_read_targ_mem(priv, base + i + 2 * sizeof(u32));
+ blink2 =
+ iwl3945_read_targ_mem(priv, base + i + 3 * sizeof(u32));
+ ilink1 =
+ iwl3945_read_targ_mem(priv, base + i + 4 * sizeof(u32));
+ ilink2 =
+ iwl3945_read_targ_mem(priv, base + i + 5 * sizeof(u32));
+ data1 =
+ iwl3945_read_targ_mem(priv, base + i + 6 * sizeof(u32));
+
+ IWL_ERROR
+ ("%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
+ desc_lookup(desc), desc, time, blink1, blink2,
+ ilink1, ilink2, data1);
+ }
+
+ iwl3945_release_nic_access(priv);
+
+}
+
+#define EVENT_START_OFFSET (6 * sizeof(u32))
+
+/**
+ * iwl3945_print_event_log - Dump error event log to syslog
+ *
+ * NOTE: Must be called with iwl3945_grab_nic_access() already obtained!
+ */
+static void iwl3945_print_event_log(struct iwl3945_priv *priv, u32 start_idx,
+ u32 num_events, u32 mode)
+{
+ u32 i;
+ u32 base; /* SRAM byte address of event log header */
+ u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
+ u32 ptr; /* SRAM byte address of log data */
+ u32 ev, time, data; /* event log data */
+
+ if (num_events == 0)
+ return;
+
+ base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+
+ if (mode == 0)
+ event_size = 2 * sizeof(u32);
+ else
+ event_size = 3 * sizeof(u32);
+
+ ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
+
+ /* "time" is actually "data" for mode 0 (no timestamp).
+ * place event id # at far right for easier visual parsing. */
+ for (i = 0; i < num_events; i++) {
+ ev = iwl3945_read_targ_mem(priv, ptr);
+ ptr += sizeof(u32);
+ time = iwl3945_read_targ_mem(priv, ptr);
+ ptr += sizeof(u32);
+ if (mode == 0)
+ IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */
+ else {
+ data = iwl3945_read_targ_mem(priv, ptr);
+ ptr += sizeof(u32);
+ IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev);
+ }
+ }
+}
+
+static void iwl3945_dump_nic_event_log(struct iwl3945_priv *priv)
+{
+ int rc;
+ u32 base; /* SRAM byte address of event log header */
+ u32 capacity; /* event log capacity in # entries */
+ u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
+ u32 num_wraps; /* # times uCode wrapped to top of log */
+ u32 next_entry; /* index of next entry to be written by uCode */
+ u32 size; /* # entries that we'll print */
+
+ base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+ if (!iwl3945_hw_valid_rtc_data_addr(base)) {
+ IWL_ERROR("Invalid event log pointer 0x%08X\n", base);
+ return;
+ }
+
+ rc = iwl3945_grab_nic_access(priv);
+ if (rc) {
+ IWL_WARNING("Can not read from adapter at this time.\n");
+ return;
+ }
+
+ /* event log header */
+ capacity = iwl3945_read_targ_mem(priv, base);
+ mode = iwl3945_read_targ_mem(priv, base + (1 * sizeof(u32)));
+ num_wraps = iwl3945_read_targ_mem(priv, base + (2 * sizeof(u32)));
+ next_entry = iwl3945_read_targ_mem(priv, base + (3 * sizeof(u32)));
+
+ size = num_wraps ? capacity : next_entry;
+
+ /* bail out if nothing in log */
+ if (size == 0) {
+ IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
+ iwl3945_release_nic_access(priv);
+ return;
+ }
+
+ IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
+ size, num_wraps);
+
+ /* if uCode has wrapped back to top of log, start at the oldest entry,
+ * i.e the next one that uCode would fill. */
+ if (num_wraps)
+ iwl3945_print_event_log(priv, next_entry,
+ capacity - next_entry, mode);
+
+ /* (then/else) start at top of log */
+ iwl3945_print_event_log(priv, 0, next_entry, mode);
+
+ iwl3945_release_nic_access(priv);
+}
+
+/**
+ * iwl3945_irq_handle_error - called for HW or SW error interrupt from card
+ */
+static void iwl3945_irq_handle_error(struct iwl3945_priv *priv)
+{
+ /* Set the FW error flag -- cleared on iwl3945_down */
+ set_bit(STATUS_FW_ERROR, &priv->status);
+
+ /* Cancel currently queued command. */
+ clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+
+#ifdef CONFIG_IWL3945_DEBUG
+ if (iwl3945_debug_level & IWL_DL_FW_ERRORS) {
+ iwl3945_dump_nic_error_log(priv);
+ iwl3945_dump_nic_event_log(priv);
+ iwl3945_print_rx_config_cmd(&priv->staging_rxon);
+ }
+#endif
+
+ wake_up_interruptible(&priv->wait_command_queue);
+
+ /* Keep the restart process from trying to send host
+ * commands by clearing the INIT status bit */
+ clear_bit(STATUS_READY, &priv->status);
+
+ if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+ IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS,
+ "Restarting adapter due to uCode error.\n");
+
+ if (iwl3945_is_associated(priv)) {
+ memcpy(&priv->recovery_rxon, &priv->active_rxon,
+ sizeof(priv->recovery_rxon));
+ priv->error_recovering = 1;
+ }
+ queue_work(priv->workqueue, &priv->restart);
+ }
+}
+
+static void iwl3945_error_recovery(struct iwl3945_priv *priv)
+{
+ unsigned long flags;
+
+ memcpy(&priv->staging_rxon, &priv->recovery_rxon,
+ sizeof(priv->staging_rxon));
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl3945_commit_rxon(priv);
+
+ iwl3945_add_station(priv, priv->bssid, 1, 0);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
+ priv->error_recovering = 0;
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static void iwl3945_irq_tasklet(struct iwl3945_priv *priv)
+{
+ u32 inta, handled = 0;
+ u32 inta_fh;
+ unsigned long flags;
+#ifdef CONFIG_IWL3945_DEBUG
+ u32 inta_mask;
+#endif
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ /* Ack/clear/reset pending uCode interrupts.
+ * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
+ * and will clear only when CSR_FH_INT_STATUS gets cleared. */
+ inta = iwl3945_read32(priv, CSR_INT);
+ iwl3945_write32(priv, CSR_INT, inta);
+
+ /* Ack/clear/reset pending flow-handler (DMA) interrupts.
+ * Any new interrupts that happen after this, either while we're
+ * in this tasklet, or later, will show up in next ISR/tasklet. */
+ inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS);
+ iwl3945_write32(priv, CSR_FH_INT_STATUS, inta_fh);
+
+#ifdef CONFIG_IWL3945_DEBUG
+ if (iwl3945_debug_level & IWL_DL_ISR) {
+ /* just for debug */
+ inta_mask = iwl3945_read32(priv, CSR_INT_MASK);
+ IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
+ inta, inta_mask, inta_fh);
+ }
+#endif
+
+ /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
+ * atomic, make sure that inta covers all the interrupts that
+ * we've discovered, even if FH interrupt came in just after
+ * reading CSR_INT. */
+ if (inta_fh & CSR_FH_INT_RX_MASK)
+ inta |= CSR_INT_BIT_FH_RX;
+ if (inta_fh & CSR_FH_INT_TX_MASK)
+ inta |= CSR_INT_BIT_FH_TX;
+
+ /* Now service all interrupt bits discovered above. */
+ if (inta & CSR_INT_BIT_HW_ERR) {
+ IWL_ERROR("Microcode HW error detected. Restarting.\n");
+
+ /* Tell the device to stop sending interrupts */
+ iwl3945_disable_interrupts(priv);
+
+ iwl3945_irq_handle_error(priv);
+
+ handled |= CSR_INT_BIT_HW_ERR;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return;
+ }
+
+#ifdef CONFIG_IWL3945_DEBUG
+ if (iwl3945_debug_level & (IWL_DL_ISR)) {
+ /* NIC fires this, but we don't use it, redundant with WAKEUP */
+ if (inta & CSR_INT_BIT_MAC_CLK_ACTV)
+ IWL_DEBUG_ISR("Microcode started or stopped.\n");
+
+ /* Alive notification via Rx interrupt will do the real work */
+ if (inta & CSR_INT_BIT_ALIVE)
+ IWL_DEBUG_ISR("Alive interrupt\n");
+ }
+#endif
+ /* Safely ignore these bits for debug checks below */
+ inta &= ~(CSR_INT_BIT_MAC_CLK_ACTV | CSR_INT_BIT_ALIVE);
+
+ /* HW RF KILL switch toggled (4965 only) */
+ if (inta & CSR_INT_BIT_RF_KILL) {
+ int hw_rf_kill = 0;
+ if (!(iwl3945_read32(priv, CSR_GP_CNTRL) &
+ CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
+ hw_rf_kill = 1;
+
+ IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL | IWL_DL_ISR,
+ "RF_KILL bit toggled to %s.\n",
+ hw_rf_kill ? "disable radio":"enable radio");
+
+ /* Queue restart only if RF_KILL switch was set to "kill"
+ * when we loaded driver, and is now set to "enable".
+ * After we're Alive, RF_KILL gets handled by
+ * iwl3945_rx_card_state_notif() */
+ if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) {
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
+ queue_work(priv->workqueue, &priv->restart);
+ }
+
+ handled |= CSR_INT_BIT_RF_KILL;
+ }
+
+ /* Chip got too hot and stopped itself (4965 only) */
+ if (inta & CSR_INT_BIT_CT_KILL) {
+ IWL_ERROR("Microcode CT kill error detected.\n");
+ handled |= CSR_INT_BIT_CT_KILL;
+ }
+
+ /* Error detected by uCode */
+ if (inta & CSR_INT_BIT_SW_ERR) {
+ IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
+ inta);
+ iwl3945_irq_handle_error(priv);
+ handled |= CSR_INT_BIT_SW_ERR;
+ }
+
+ /* uCode wakes up after power-down sleep */
+ if (inta & CSR_INT_BIT_WAKEUP) {
+ IWL_DEBUG_ISR("Wakeup interrupt\n");
+ iwl3945_rx_queue_update_write_ptr(priv, &priv->rxq);
+ iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[0]);
+ iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[1]);
+ iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[2]);
+ iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[3]);
+ iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[4]);
+ iwl3945_tx_queue_update_write_ptr(priv, &priv->txq[5]);
+
+ handled |= CSR_INT_BIT_WAKEUP;
+ }
+
+ /* All uCode command responses, including Tx command responses,
+ * Rx "responses" (frame-received notification), and other
+ * notifications from uCode come through here*/
+ if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
+ iwl3945_rx_handle(priv);
+ handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
+ }
+
+ if (inta & CSR_INT_BIT_FH_TX) {
+ IWL_DEBUG_ISR("Tx interrupt\n");
+
+ iwl3945_write32(priv, CSR_FH_INT_STATUS, (1 << 6));
+ if (!iwl3945_grab_nic_access(priv)) {
+ iwl3945_write_direct32(priv,
+ FH_TCSR_CREDIT
+ (ALM_FH_SRVC_CHNL), 0x0);
+ iwl3945_release_nic_access(priv);
+ }
+ handled |= CSR_INT_BIT_FH_TX;
+ }
+
+ if (inta & ~handled)
+ IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
+
+ if (inta & ~CSR_INI_SET_MASK) {
+ IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
+ inta & ~CSR_INI_SET_MASK);
+ IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh);
+ }
+
+ /* Re-enable all interrupts */
+ iwl3945_enable_interrupts(priv);
+
+#ifdef CONFIG_IWL3945_DEBUG
+ if (iwl3945_debug_level & (IWL_DL_ISR)) {
+ inta = iwl3945_read32(priv, CSR_INT);
+ inta_mask = iwl3945_read32(priv, CSR_INT_MASK);
+ inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS);
+ IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
+ "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
+ }
+#endif
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static irqreturn_t iwl3945_isr(int irq, void *data, struct pt_regs *regs)
+{
+ struct iwl3945_priv *priv = data;
+ u32 inta, inta_mask;
+ u32 inta_fh;
+ if (!priv)
+ return IRQ_NONE;
+
+ spin_lock(&priv->lock);
+
+ /* Disable (but don't clear!) interrupts here to avoid
+ * back-to-back ISRs and sporadic interrupts from our NIC.
+ * If we have something to service, the tasklet will re-enable ints.
+ * If we *don't* have something, we'll re-enable before leaving here. */
+ inta_mask = iwl3945_read32(priv, CSR_INT_MASK); /* just for debug */
+ iwl3945_write32(priv, CSR_INT_MASK, 0x00000000);
+
+ /* Discover which interrupts are active/pending */
+ inta = iwl3945_read32(priv, CSR_INT);
+ inta_fh = iwl3945_read32(priv, CSR_FH_INT_STATUS);
+
+ /* Ignore interrupt if there's nothing in NIC to service.
+ * This may be due to IRQ shared with another device,
+ * or due to sporadic interrupts thrown from our NIC. */
+ if (!inta && !inta_fh) {
+ IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
+ goto none;
+ }
+
+ if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
+ /* Hardware disappeared */
+ IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
+ goto unplugged;
+ }
+
+ IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
+ inta, inta_mask, inta_fh);
+
+ /* iwl3945_irq_tasklet() will service interrupts and re-enable them */
+ tasklet_schedule(&priv->irq_tasklet);
+unplugged:
+ spin_unlock(&priv->lock);
+
+ return IRQ_HANDLED;
+
+ none:
+ /* re-enable interrupts here since we don't have anything to service. */
+ iwl3945_enable_interrupts(priv);
+ spin_unlock(&priv->lock);
+ return IRQ_NONE;
+}
+
+/************************** EEPROM BANDS ****************************
+ *
+ * The iwl3945_eeprom_band definitions below provide the mapping from the
+ * EEPROM contents to the specific channel number supported for each
+ * band.
+ *
+ * For example, iwl3945_priv->eeprom.band_3_channels[4] from the band_3
+ * definition below maps to physical channel 42 in the 5.2GHz spectrum.
+ * The specific geography and calibration information for that channel
+ * is contained in the eeprom map itself.
+ *
+ * During init, we copy the eeprom information and channel map
+ * information into priv->channel_info_24/52 and priv->channel_map_24/52
+ *
+ * channel_map_24/52 provides the index in the channel_info array for a
+ * given channel. We have to have two separate maps as there is channel
+ * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
+ * band_2
+ *
+ * A value of 0xff stored in the channel_map indicates that the channel
+ * is not supported by the hardware at all.
+ *
+ * A value of 0xfe in the channel_map indicates that the channel is not
+ * valid for Tx with the current hardware. This means that
+ * while the system can tune and receive on a given channel, it may not
+ * be able to associate or transmit any frames on that
+ * channel. There is no corresponding channel information for that
+ * entry.
+ *
+ *********************************************************************/
+
+/* 2.4 GHz */
+static const u8 iwl3945_eeprom_band_1[14] = {
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
+};
+
+/* 5.2 GHz bands */
+static const u8 iwl3945_eeprom_band_2[] = { /* 4915-5080MHz */
+ 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
+};
+
+static const u8 iwl3945_eeprom_band_3[] = { /* 5170-5320MHz */
+ 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
+};
+
+static const u8 iwl3945_eeprom_band_4[] = { /* 5500-5700MHz */
+ 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
+};
+
+static const u8 iwl3945_eeprom_band_5[] = { /* 5725-5825MHz */
+ 145, 149, 153, 157, 161, 165
+};
+
+static void iwl3945_init_band_reference(const struct iwl3945_priv *priv, int band,
+ int *eeprom_ch_count,
+ const struct iwl3945_eeprom_channel
+ **eeprom_ch_info,
+ const u8 **eeprom_ch_index)
+{
+ switch (band) {
+ case 1: /* 2.4GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_1);
+ *eeprom_ch_info = priv->eeprom.band_1_channels;
+ *eeprom_ch_index = iwl3945_eeprom_band_1;
+ break;
+ case 2: /* 4.9GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_2);
+ *eeprom_ch_info = priv->eeprom.band_2_channels;
+ *eeprom_ch_index = iwl3945_eeprom_band_2;
+ break;
+ case 3: /* 5.2GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_3);
+ *eeprom_ch_info = priv->eeprom.band_3_channels;
+ *eeprom_ch_index = iwl3945_eeprom_band_3;
+ break;
+ case 4: /* 5.5GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_4);
+ *eeprom_ch_info = priv->eeprom.band_4_channels;
+ *eeprom_ch_index = iwl3945_eeprom_band_4;
+ break;
+ case 5: /* 5.7GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_5);
+ *eeprom_ch_info = priv->eeprom.band_5_channels;
+ *eeprom_ch_index = iwl3945_eeprom_band_5;
+ break;
+ default:
+ BUG();
+ return;
+ }
+}
+
+/**
+ * iwl3945_get_channel_info - Find driver's private channel info
+ *
+ * Based on band and channel number.
+ */
+const struct iwl3945_channel_info *iwl3945_get_channel_info(const struct iwl3945_priv *priv,
+ int phymode, u16 channel)
+{
+ int i;
+
+ switch (phymode) {
+ case MODE_IEEE80211A:
+ for (i = 14; i < priv->channel_count; i++) {
+ if (priv->channel_info[i].channel == channel)
+ return &priv->channel_info[i];
+ }
+ break;
+
+ case MODE_IEEE80211B:
+ case MODE_IEEE80211G:
+ if (channel >= 1 && channel <= 14)
+ return &priv->channel_info[channel - 1];
+ break;
+
+ }
+
+ return NULL;
+}
+
+#define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
+ ? # x " " : "")
+
+/**
+ * iwl3945_init_channel_map - Set up driver's info for all possible channels
+ */
+static int iwl3945_init_channel_map(struct iwl3945_priv *priv)
+{
+ int eeprom_ch_count = 0;
+ const u8 *eeprom_ch_index = NULL;
+ const struct iwl3945_eeprom_channel *eeprom_ch_info = NULL;
+ int band, ch;
+ struct iwl3945_channel_info *ch_info;
+
+ if (priv->channel_count) {
+ IWL_DEBUG_INFO("Channel map already initialized.\n");
+ return 0;
+ }
+
+ if (priv->eeprom.version < 0x2f) {
+ IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
+ priv->eeprom.version);
+ return -EINVAL;
+ }
+
+ IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
+
+ priv->channel_count =
+ ARRAY_SIZE(iwl3945_eeprom_band_1) +
+ ARRAY_SIZE(iwl3945_eeprom_band_2) +
+ ARRAY_SIZE(iwl3945_eeprom_band_3) +
+ ARRAY_SIZE(iwl3945_eeprom_band_4) +
+ ARRAY_SIZE(iwl3945_eeprom_band_5);
+
+ IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count);
+
+ priv->channel_info = kzalloc(sizeof(struct iwl3945_channel_info) *
+ priv->channel_count, GFP_KERNEL);
+ if (!priv->channel_info) {
+ IWL_ERROR("Could not allocate channel_info\n");
+ priv->channel_count = 0;
+ return -ENOMEM;
+ }
+
+ ch_info = priv->channel_info;
+
+ /* Loop through the 5 EEPROM bands adding them in order to the
+ * channel map we maintain (that contains additional information than
+ * what just in the EEPROM) */
+ for (band = 1; band <= 5; band++) {
+
+ iwl3945_init_band_reference(priv, band, &eeprom_ch_count,
+ &eeprom_ch_info, &eeprom_ch_index);
+
+ /* Loop through each band adding each of the channels */
+ for (ch = 0; ch < eeprom_ch_count; ch++) {
+ ch_info->channel = eeprom_ch_index[ch];
+ ch_info->phymode = (band == 1) ? MODE_IEEE80211B :
+ MODE_IEEE80211A;
+
+ /* permanently store EEPROM's channel regulatory flags
+ * and max power in channel info database. */
+ ch_info->eeprom = eeprom_ch_info[ch];
+
+ /* Copy the run-time flags so they are there even on
+ * invalid channels */
+ ch_info->flags = eeprom_ch_info[ch].flags;
+
+ if (!(is_channel_valid(ch_info))) {
+ IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
+ "No traffic\n",
+ ch_info->channel,
+ ch_info->flags,
+ is_channel_a_band(ch_info) ?
+ "5.2" : "2.4");
+ ch_info++;
+ continue;
+ }
+
+ /* Initialize regulatory-based run-time data */
+ ch_info->max_power_avg = ch_info->curr_txpow =
+ eeprom_ch_info[ch].max_power_avg;
+ ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
+ ch_info->min_power = 0;
+
+ IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
+ " %ddBm): Ad-Hoc %ssupported\n",
+ ch_info->channel,
+ is_channel_a_band(ch_info) ?
+ "5.2" : "2.4",
+ CHECK_AND_PRINT(IBSS),
+ CHECK_AND_PRINT(ACTIVE),
+ CHECK_AND_PRINT(RADAR),
+ CHECK_AND_PRINT(WIDE),
+ CHECK_AND_PRINT(NARROW),
+ CHECK_AND_PRINT(DFS),
+ eeprom_ch_info[ch].flags,
+ eeprom_ch_info[ch].max_power_avg,
+ ((eeprom_ch_info[ch].
+ flags & EEPROM_CHANNEL_IBSS)
+ && !(eeprom_ch_info[ch].
+ flags & EEPROM_CHANNEL_RADAR))
+ ? "" : "not ");
+
+ /* Set the user_txpower_limit to the highest power
+ * supported by any channel */
+ if (eeprom_ch_info[ch].max_power_avg >
+ priv->user_txpower_limit)
+ priv->user_txpower_limit =
+ eeprom_ch_info[ch].max_power_avg;
+
+ ch_info++;
+ }
+ }
+
+ /* Set up txpower settings in driver for all channels */
+ if (iwl3945_txpower_set_from_eeprom(priv))
+ return -EIO;
+
+ return 0;
+}
+
+/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
+ * sending probe req. This should be set long enough to hear probe responses
+ * from more than one AP. */
+#define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
+#define IWL_ACTIVE_DWELL_TIME_52 (10)
+
+/* For faster active scanning, scan will move to the next channel if fewer than
+ * PLCP_QUIET_THRESH packets are heard on this channel within
+ * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
+ * time if it's a quiet channel (nothing responded to our probe, and there's
+ * no other traffic).
+ * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
+#define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
+#define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
+
+/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
+ * Must be set longer than active dwell time.
+ * For the most reliable scan, set > AP beacon interval (typically 100msec). */
+#define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
+#define IWL_PASSIVE_DWELL_TIME_52 (10)
+#define IWL_PASSIVE_DWELL_BASE (100)
+#define IWL_CHANNEL_TUNE_TIME 5
+
+static inline u16 iwl3945_get_active_dwell_time(struct iwl3945_priv *priv, int phymode)
+{
+ if (phymode == MODE_IEEE80211A)
+ return IWL_ACTIVE_DWELL_TIME_52;
+ else
+ return IWL_ACTIVE_DWELL_TIME_24;
+}
+
+static u16 iwl3945_get_passive_dwell_time(struct iwl3945_priv *priv, int phymode)
+{
+ u16 active = iwl3945_get_active_dwell_time(priv, phymode);
+ u16 passive = (phymode != MODE_IEEE80211A) ?
+ IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
+ IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
+
+ if (iwl3945_is_associated(priv)) {
+ /* If we're associated, we clamp the maximum passive
+ * dwell time to be 98% of the beacon interval (minus
+ * 2 * channel tune time) */
+ passive = priv->beacon_int;
+ if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
+ passive = IWL_PASSIVE_DWELL_BASE;
+ passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
+ }
+
+ if (passive <= active)
+ passive = active + 1;
+
+ return passive;
+}
+
+static int iwl3945_get_channels_for_scan(struct iwl3945_priv *priv, int phymode,
+ u8 is_active, u8 direct_mask,
+ struct iwl3945_scan_channel *scan_ch)
+{
+ const struct ieee80211_channel *channels = NULL;
+ const struct ieee80211_hw_mode *hw_mode;
+ const struct iwl3945_channel_info *ch_info;
+ u16 passive_dwell = 0;
+ u16 active_dwell = 0;
+ int added, i;
+
+ hw_mode = iwl3945_get_hw_mode(priv, phymode);
+ if (!hw_mode)
+ return 0;
+
+ channels = hw_mode->channels;
+
+ active_dwell = iwl3945_get_active_dwell_time(priv, phymode);
+ passive_dwell = iwl3945_get_passive_dwell_time(priv, phymode);
+
+ for (i = 0, added = 0; i < hw_mode->num_channels; i++) {
+ if (channels[i].chan ==
+ le16_to_cpu(priv->active_rxon.channel)) {
+ if (iwl3945_is_associated(priv)) {
+ IWL_DEBUG_SCAN
+ ("Skipping current channel %d\n",
+ le16_to_cpu(priv->active_rxon.channel));
+ continue;
+ }
+ } else if (priv->only_active_channel)
+ continue;
+
+ scan_ch->channel = channels[i].chan;
+
+ ch_info = iwl3945_get_channel_info(priv, phymode, scan_ch->channel);
+ if (!is_channel_valid(ch_info)) {
+ IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
+ scan_ch->channel);
+ continue;
+ }
+
+ if (!is_active || is_channel_passive(ch_info) ||
+ !(channels[i].flag & IEEE80211_CHAN_W_ACTIVE_SCAN))
+ scan_ch->type = 0; /* passive */
+ else
+ scan_ch->type = 1; /* active */
+
+ if (scan_ch->type & 1)
+ scan_ch->type |= (direct_mask << 1);
+
+ if (is_channel_narrow(ch_info))
+ scan_ch->type |= (1 << 7);
+
+ scan_ch->active_dwell = cpu_to_le16(active_dwell);
+ scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
+
+ /* Set txpower levels to defaults */
+ scan_ch->tpc.dsp_atten = 110;
+ /* scan_pwr_info->tpc.dsp_atten; */
+
+ /*scan_pwr_info->tpc.tx_gain; */
+ if (phymode == MODE_IEEE80211A)
+ scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
+ else {
+ scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
+ /* NOTE: if we were doing 6Mb OFDM for scans we'd use
+ * power level:
+ * scan_ch->tpc.tx_gain = ((1<<5) | (2 << 3)) | 3;
+ */
+ }
+
+ IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
+ scan_ch->channel,
+ (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
+ (scan_ch->type & 1) ?
+ active_dwell : passive_dwell);
+
+ scan_ch++;
+ added++;
+ }
+
+ IWL_DEBUG_SCAN("total channels to scan %d \n", added);
+ return added;
+}
+
+static void iwl3945_reset_channel_flag(struct iwl3945_priv *priv)
+{
+ int i, j;
+ for (i = 0; i < 3; i++) {
+ struct ieee80211_hw_mode *hw_mode = (void *)&priv->modes[i];
+ for (j = 0; j < hw_mode->num_channels; j++)
+ hw_mode->channels[j].flag = hw_mode->channels[j].val;
+ }
+}
+
+static void iwl3945_init_hw_rates(struct iwl3945_priv *priv,
+ struct ieee80211_rate *rates)
+{
+ int i;
+
+ for (i = 0; i < IWL_RATE_COUNT; i++) {
+ rates[i].rate = iwl3945_rates[i].ieee * 5;
+ rates[i].val = i; /* Rate scaling will work on indexes */
+ rates[i].val2 = i;
+ rates[i].flags = IEEE80211_RATE_SUPPORTED;
+ /* Only OFDM have the bits-per-symbol set */
+ if ((i <= IWL_LAST_OFDM_RATE) && (i >= IWL_FIRST_OFDM_RATE))
+ rates[i].flags |= IEEE80211_RATE_OFDM;
+ else {
+ /*
+ * If CCK 1M then set rate flag to CCK else CCK_2
+ * which is CCK | PREAMBLE2
+ */
+ rates[i].flags |= (iwl3945_rates[i].plcp == 10) ?
+ IEEE80211_RATE_CCK : IEEE80211_RATE_CCK_2;
+ }
+
+ /* Set up which ones are basic rates... */
+ if (IWL_BASIC_RATES_MASK & (1 << i))
+ rates[i].flags |= IEEE80211_RATE_BASIC;
+ }
+}
+
+/**
+ * iwl3945_init_geos - Initialize mac80211's geo/channel info based from eeprom
+ */
+static int iwl3945_init_geos(struct iwl3945_priv *priv)
+{
+ struct iwl3945_channel_info *ch;
+ struct ieee80211_hw_mode *modes;
+ struct ieee80211_channel *channels;
+ struct ieee80211_channel *geo_ch;
+ struct ieee80211_rate *rates;
+ int i = 0;
+ enum {
+ A = 0,
+ B = 1,
+ G = 2,
+ };
+ int mode_count = 3;
+
+ if (priv->modes) {
+ IWL_DEBUG_INFO("Geography modes already initialized.\n");
+ set_bit(STATUS_GEO_CONFIGURED, &priv->status);
+ return 0;
+ }
+
+ modes = kzalloc(sizeof(struct ieee80211_hw_mode) * mode_count,
+ GFP_KERNEL);
+ if (!modes)
+ return -ENOMEM;
+
+ channels = kzalloc(sizeof(struct ieee80211_channel) *
+ priv->channel_count, GFP_KERNEL);
+ if (!channels) {
+ kfree(modes);
+ return -ENOMEM;
+ }
+
+ rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_MAX_RATES + 1)),
+ GFP_KERNEL);
+ if (!rates) {
+ kfree(modes);
+ kfree(channels);
+ return -ENOMEM;
+ }
+
+ /* 0 = 802.11a
+ * 1 = 802.11b
+ * 2 = 802.11g
+ */
+
+ /* 5.2GHz channels start after the 2.4GHz channels */
+ modes[A].mode = MODE_IEEE80211A;
+ modes[A].channels = &channels[ARRAY_SIZE(iwl3945_eeprom_band_1)];
+ modes[A].rates = &rates[4];
+ modes[A].num_rates = 8; /* just OFDM */
+ modes[A].num_channels = 0;
+
+ modes[B].mode = MODE_IEEE80211B;
+ modes[B].channels = channels;
+ modes[B].rates = rates;
+ modes[B].num_rates = 4; /* just CCK */
+ modes[B].num_channels = 0;
+
+ modes[G].mode = MODE_IEEE80211G;
+ modes[G].channels = channels;
+ modes[G].rates = rates;
+ modes[G].num_rates = 12; /* OFDM & CCK */
+ modes[G].num_channels = 0;
+
+ priv->ieee_channels = channels;
+ priv->ieee_rates = rates;
+
+ iwl3945_init_hw_rates(priv, rates);
+
+ for (i = 0, geo_ch = channels; i < priv->channel_count; i++) {
+ ch = &priv->channel_info[i];
+
+ if (!is_channel_valid(ch)) {
+ IWL_DEBUG_INFO("Channel %d [%sGHz] is restricted -- "
+ "skipping.\n",
+ ch->channel, is_channel_a_band(ch) ?
+ "5.2" : "2.4");
+ continue;
+ }
+
+ if (is_channel_a_band(ch))
+ geo_ch = &modes[A].channels[modes[A].num_channels++];
+ else {
+ geo_ch = &modes[B].channels[modes[B].num_channels++];
+ modes[G].num_channels++;
+ }
+
+ geo_ch->freq = ieee80211chan2mhz(ch->channel);
+ geo_ch->chan = ch->channel;
+ geo_ch->power_level = ch->max_power_avg;
+ geo_ch->antenna_max = 0xff;
+
+ if (is_channel_valid(ch)) {
+ geo_ch->flag = IEEE80211_CHAN_W_SCAN;
+ if (ch->flags & EEPROM_CHANNEL_IBSS)
+ geo_ch->flag |= IEEE80211_CHAN_W_IBSS;
+
+ if (ch->flags & EEPROM_CHANNEL_ACTIVE)
+ geo_ch->flag |= IEEE80211_CHAN_W_ACTIVE_SCAN;
+
+ if (ch->flags & EEPROM_CHANNEL_RADAR)
+ geo_ch->flag |= IEEE80211_CHAN_W_RADAR_DETECT;
+
+ if (ch->max_power_avg > priv->max_channel_txpower_limit)
+ priv->max_channel_txpower_limit =
+ ch->max_power_avg;
+ }
+
+ geo_ch->val = geo_ch->flag;
+ }
+
+ if ((modes[A].num_channels == 0) && priv->is_abg) {
+ printk(KERN_INFO DRV_NAME
+ ": Incorrectly detected BG card as ABG. Please send "
+ "your PCI ID 0x%04X:0x%04X to maintainer.\n",
+ priv->pci_dev->device, priv->pci_dev->subsystem_device);
+ priv->is_abg = 0;
+ }
+
+ printk(KERN_INFO DRV_NAME
+ ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
+ modes[G].num_channels, modes[A].num_channels);
+
+ /*
+ * NOTE: We register these in preference of order -- the
+ * stack doesn't currently (as of 7.0.6 / Apr 24 '07) pick
+ * a phymode based on rates or AP capabilities but seems to
+ * configure it purely on if the channel being configured
+ * is supported by a mode -- and the first match is taken
+ */
+
+ if (modes[G].num_channels)
+ ieee80211_register_hwmode(priv->hw, &modes[G]);
+ if (modes[B].num_channels)
+ ieee80211_register_hwmode(priv->hw, &modes[B]);
+ if (modes[A].num_channels)
+ ieee80211_register_hwmode(priv->hw, &modes[A]);
+
+ priv->modes = modes;
+ set_bit(STATUS_GEO_CONFIGURED, &priv->status);
+
+ return 0;
+}
+
+/******************************************************************************
+ *
+ * uCode download functions
+ *
+ ******************************************************************************/
+
+static void iwl3945_dealloc_ucode_pci(struct iwl3945_priv *priv)
+{
+ if (priv->ucode_code.v_addr != NULL) {
+ pci_free_consistent(priv->pci_dev,
+ priv->ucode_code.len,
+ priv->ucode_code.v_addr,
+ priv->ucode_code.p_addr);
+ priv->ucode_code.v_addr = NULL;
+ }
+ if (priv->ucode_data.v_addr != NULL) {
+ pci_free_consistent(priv->pci_dev,
+ priv->ucode_data.len,
+ priv->ucode_data.v_addr,
+ priv->ucode_data.p_addr);
+ priv->ucode_data.v_addr = NULL;
+ }
+ if (priv->ucode_data_backup.v_addr != NULL) {
+ pci_free_consistent(priv->pci_dev,
+ priv->ucode_data_backup.len,
+ priv->ucode_data_backup.v_addr,
+ priv->ucode_data_backup.p_addr);
+ priv->ucode_data_backup.v_addr = NULL;
+ }
+ if (priv->ucode_init.v_addr != NULL) {
+ pci_free_consistent(priv->pci_dev,
+ priv->ucode_init.len,
+ priv->ucode_init.v_addr,
+ priv->ucode_init.p_addr);
+ priv->ucode_init.v_addr = NULL;
+ }
+ if (priv->ucode_init_data.v_addr != NULL) {
+ pci_free_consistent(priv->pci_dev,
+ priv->ucode_init_data.len,
+ priv->ucode_init_data.v_addr,
+ priv->ucode_init_data.p_addr);
+ priv->ucode_init_data.v_addr = NULL;
+ }
+ if (priv->ucode_boot.v_addr != NULL) {
+ pci_free_consistent(priv->pci_dev,
+ priv->ucode_boot.len,
+ priv->ucode_boot.v_addr,
+ priv->ucode_boot.p_addr);
+ priv->ucode_boot.v_addr = NULL;
+ }
+}
+
+/**
+ * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
+ * looking at all data.
+ */
+static int iwl3945_verify_inst_full(struct iwl3945_priv *priv, __le32 * image, u32 len)
+{
+ u32 val;
+ u32 save_len = len;
+ int rc = 0;
+ u32 errcnt;
+
+ IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
+
+ rc = iwl3945_grab_nic_access(priv);
+ if (rc)
+ return rc;
+
+ iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND);
+
+ errcnt = 0;
+ for (; len > 0; len -= sizeof(u32), image++) {
+ /* read data comes through single port, auto-incr addr */
+ /* NOTE: Use the debugless read so we don't flood kernel log
+ * if IWL_DL_IO is set */
+ val = _iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+ if (val != le32_to_cpu(*image)) {
+ IWL_ERROR("uCode INST section is invalid at "
+ "offset 0x%x, is 0x%x, s/b 0x%x\n",
+ save_len - len, val, le32_to_cpu(*image));
+ rc = -EIO;
+ errcnt++;
+ if (errcnt >= 20)
+ break;
+ }
+ }
+
+ iwl3945_release_nic_access(priv);
+
+ if (!errcnt)
+ IWL_DEBUG_INFO("ucode image in INSTRUCTION memory is good\n");
+
+ return rc;
+}
+
+
+/**
+ * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
+ * using sample data 100 bytes apart. If these sample points are good,
+ * it's a pretty good bet that everything between them is good, too.
+ */
+static int iwl3945_verify_inst_sparse(struct iwl3945_priv *priv, __le32 *image, u32 len)
+{
+ u32 val;
+ int rc = 0;
+ u32 errcnt = 0;
+ u32 i;
+
+ IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
+
+ rc = iwl3945_grab_nic_access(priv);
+ if (rc)
+ return rc;
+
+ for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
+ /* read data comes through single port, auto-incr addr */
+ /* NOTE: Use the debugless read so we don't flood kernel log
+ * if IWL_DL_IO is set */
+ iwl3945_write_direct32(priv, HBUS_TARG_MEM_RADDR,
+ i + RTC_INST_LOWER_BOUND);
+ val = _iwl3945_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+ if (val != le32_to_cpu(*image)) {
+#if 0 /* Enable this if you want to see details */
+ IWL_ERROR("uCode INST section is invalid at "
+ "offset 0x%x, is 0x%x, s/b 0x%x\n",
+ i, val, *image);
+#endif
+ rc = -EIO;
+ errcnt++;
+ if (errcnt >= 3)
+ break;
+ }
+ }
+
+ iwl3945_release_nic_access(priv);
+
+ return rc;
+}
+
+
+/**
+ * iwl3945_verify_ucode - determine which instruction image is in SRAM,
+ * and verify its contents
+ */
+static int iwl3945_verify_ucode(struct iwl3945_priv *priv)
+{
+ __le32 *image;
+ u32 len;
+ int rc = 0;
+
+ /* Try bootstrap */
+ image = (__le32 *)priv->ucode_boot.v_addr;
+ len = priv->ucode_boot.len;
+ rc = iwl3945_verify_inst_sparse(priv, image, len);
+ if (rc == 0) {
+ IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ /* Try initialize */
+ image = (__le32 *)priv->ucode_init.v_addr;
+ len = priv->ucode_init.len;
+ rc = iwl3945_verify_inst_sparse(priv, image, len);
+ if (rc == 0) {
+ IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ /* Try runtime/protocol */
+ image = (__le32 *)priv->ucode_code.v_addr;
+ len = priv->ucode_code.len;
+ rc = iwl3945_verify_inst_sparse(priv, image, len);
+ if (rc == 0) {
+ IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
+
+ /* Since nothing seems to match, show first several data entries in
+ * instruction SRAM, so maybe visual inspection will give a clue.
+ * Selection of bootstrap image (vs. other images) is arbitrary. */
+ image = (__le32 *)priv->ucode_boot.v_addr;
+ len = priv->ucode_boot.len;
+ rc = iwl3945_verify_inst_full(priv, image, len);
+
+ return rc;
+}
+
+
+/* check contents of special bootstrap uCode SRAM */
+static int iwl3945_verify_bsm(struct iwl3945_priv *priv)
+{
+ __le32 *image = priv->ucode_boot.v_addr;
+ u32 len = priv->ucode_boot.len;
+ u32 reg;
+ u32 val;
+
+ IWL_DEBUG_INFO("Begin verify bsm\n");
+
+ /* verify BSM SRAM contents */
+ val = iwl3945_read_prph(priv, BSM_WR_DWCOUNT_REG);
+ for (reg = BSM_SRAM_LOWER_BOUND;
+ reg < BSM_SRAM_LOWER_BOUND + len;
+ reg += sizeof(u32), image ++) {
+ val = iwl3945_read_prph(priv, reg);
+ if (val != le32_to_cpu(*image)) {
+ IWL_ERROR("BSM uCode verification failed at "
+ "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
+ BSM_SRAM_LOWER_BOUND,
+ reg - BSM_SRAM_LOWER_BOUND, len,
+ val, le32_to_cpu(*image));
+ return -EIO;
+ }
+ }
+
+ IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
+
+ return 0;
+}
+
+/**
+ * iwl3945_load_bsm - Load bootstrap instructions
+ *
+ * BSM operation:
+ *
+ * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
+ * in special SRAM that does not power down during RFKILL. When powering back
+ * up after power-saving sleeps (or during initial uCode load), the BSM loads
+ * the bootstrap program into the on-board processor, and starts it.
+ *
+ * The bootstrap program loads (via DMA) instructions and data for a new
+ * program from host DRAM locations indicated by the host driver in the
+ * BSM_DRAM_* registers. Once the new program is loaded, it starts
+ * automatically.
+ *
+ * When initializing the NIC, the host driver points the BSM to the
+ * "initialize" uCode image. This uCode sets up some internal data, then
+ * notifies host via "initialize alive" that it is complete.
+ *
+ * The host then replaces the BSM_DRAM_* pointer values to point to the
+ * normal runtime uCode instructions and a backup uCode data cache buffer
+ * (filled initially with starting data values for the on-board processor),
+ * then triggers the "initialize" uCode to load and launch the runtime uCode,
+ * which begins normal operation.
+ *
+ * When doing a power-save shutdown, runtime uCode saves data SRAM into
+ * the backup data cache in DRAM before SRAM is powered down.
+ *
+ * When powering back up, the BSM loads the bootstrap program. This reloads
+ * the runtime uCode instructions and the backup data cache into SRAM,
+ * and re-launches the runtime uCode from where it left off.
+ */
+static int iwl3945_load_bsm(struct iwl3945_priv *priv)
+{
+ __le32 *image = priv->ucode_boot.v_addr;
+ u32 len = priv->ucode_boot.len;
+ dma_addr_t pinst;
+ dma_addr_t pdata;
+ u32 inst_len;
+ u32 data_len;
+ int rc;
+ int i;
+ u32 done;
+ u32 reg_offset;
+
+ IWL_DEBUG_INFO("Begin load bsm\n");
+
+ /* make sure bootstrap program is no larger than BSM's SRAM size */
+ if (len > IWL_MAX_BSM_SIZE)
+ return -EINVAL;
+
+ /* Tell bootstrap uCode where to find the "Initialize" uCode
+ * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
+ * NOTE: iwl3945_initialize_alive_start() will replace these values,
+ * after the "initialize" uCode has run, to point to
+ * runtime/protocol instructions and backup data cache. */
+ pinst = priv->ucode_init.p_addr;
+ pdata = priv->ucode_init_data.p_addr;
+ inst_len = priv->ucode_init.len;
+ data_len = priv->ucode_init_data.len;
+
+ rc = iwl3945_grab_nic_access(priv);
+ if (rc)
+ return rc;
+
+ iwl3945_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
+ iwl3945_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
+ iwl3945_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
+ iwl3945_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
+
+ /* Fill BSM memory with bootstrap instructions */
+ for (reg_offset = BSM_SRAM_LOWER_BOUND;
+ reg_offset < BSM_SRAM_LOWER_BOUND + len;
+ reg_offset += sizeof(u32), image++)
+ _iwl3945_write_prph(priv, reg_offset,
+ le32_to_cpu(*image));
+
+ rc = iwl3945_verify_bsm(priv);
+ if (rc) {
+ iwl3945_release_nic_access(priv);
+ return rc;
+ }
+
+ /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
+ iwl3945_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0);
+ iwl3945_write_prph(priv, BSM_WR_MEM_DST_REG,
+ RTC_INST_LOWER_BOUND);
+ iwl3945_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
+
+ /* Load bootstrap code into instruction SRAM now,
+ * to prepare to load "initialize" uCode */
+ iwl3945_write_prph(priv, BSM_WR_CTRL_REG,
+ BSM_WR_CTRL_REG_BIT_START);
+
+ /* Wait for load of bootstrap uCode to finish */
+ for (i = 0; i < 100; i++) {
+ done = iwl3945_read_prph(priv, BSM_WR_CTRL_REG);
+ if (!(done & BSM_WR_CTRL_REG_BIT_START))
+ break;
+ udelay(10);
+ }
+ if (i < 100)
+ IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i);
+ else {
+ IWL_ERROR("BSM write did not complete!\n");
+ return -EIO;
+ }
+
+ /* Enable future boot loads whenever power management unit triggers it
+ * (e.g. when powering back up after power-save shutdown) */
+ iwl3945_write_prph(priv, BSM_WR_CTRL_REG,
+ BSM_WR_CTRL_REG_BIT_START_EN);
+
+ iwl3945_release_nic_access(priv);
+
+ return 0;
+}
+
+static void iwl3945_nic_start(struct iwl3945_priv *priv)
+{
+ /* Remove all resets to allow NIC to operate */
+ iwl3945_write32(priv, CSR_RESET, 0);
+}
+
+static int iwl3945_alloc_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc)
+{
+ desc->v_addr = pci_alloc_consistent(pci_dev, desc->len, &desc->p_addr);
+ return (desc->v_addr != NULL) ? 0 : -ENOMEM;
+}
+
+/**
+ * iwl3945_read_ucode - Read uCode images from disk file.
+ *
+ * Copy into buffers for card to fetch via bus-mastering
+ */
+static int iwl3945_read_ucode(struct iwl3945_priv *priv)
+{
+ struct iwl3945_ucode *ucode;
+ int ret = 0;
+ const struct firmware *ucode_raw;
+ /* firmware file name contains uCode/driver compatibility version */
+ const char *name = "iwlwifi-3945" IWL3945_UCODE_API ".ucode";
+ u8 *src;
+ size_t len;
+ u32 ver, inst_size, data_size, init_size, init_data_size, boot_size;
+
+ /* Ask kernel firmware_class module to get the boot firmware off disk.
+ * request_firmware() is synchronous, file is in memory on return. */
+ ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev);
+ if (ret < 0) {
+ IWL_ERROR("%s firmware file req failed: Reason %d\n",
+ name, ret);
+ goto error;
+ }
+
+ IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
+ name, ucode_raw->size);
+
+ /* Make sure that we got at least our header! */
+ if (ucode_raw->size < sizeof(*ucode)) {
+ IWL_ERROR("File size way too small!\n");
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ /* Data from ucode file: header followed by uCode images */
+ ucode = (void *)ucode_raw->data;
+
+ ver = le32_to_cpu(ucode->ver);
+ inst_size = le32_to_cpu(ucode->inst_size);
+ data_size = le32_to_cpu(ucode->data_size);
+ init_size = le32_to_cpu(ucode->init_size);
+ init_data_size = le32_to_cpu(ucode->init_data_size);
+ boot_size = le32_to_cpu(ucode->boot_size);
+
+ IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver);
+ IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n", inst_size);
+ IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n", data_size);
+ IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n", init_size);
+ IWL_DEBUG_INFO("f/w package hdr init data size = %u\n", init_data_size);
+ IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n", boot_size);
+
+ /* Verify size of file vs. image size info in file's header */
+ if (ucode_raw->size < sizeof(*ucode) +
+ inst_size + data_size + init_size +
+ init_data_size + boot_size) {
+
+ IWL_DEBUG_INFO("uCode file size %d too small\n",
+ (int)ucode_raw->size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ /* Verify that uCode images will fit in card's SRAM */
+ if (inst_size > IWL_MAX_INST_SIZE) {
+ IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
+ inst_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ if (data_size > IWL_MAX_DATA_SIZE) {
+ IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
+ data_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (init_size > IWL_MAX_INST_SIZE) {
+ IWL_DEBUG_INFO("uCode init instr len %d too large to fit in\n",
+ init_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (init_data_size > IWL_MAX_DATA_SIZE) {
+ IWL_DEBUG_INFO("uCode init data len %d too large to fit in\n",
+ init_data_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (boot_size > IWL_MAX_BSM_SIZE) {
+ IWL_DEBUG_INFO("uCode boot instr len %d too large to fit in\n",
+ boot_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ /* Allocate ucode buffers for card's bus-master loading ... */
+
+ /* Runtime instructions and 2 copies of data:
+ * 1) unmodified from disk
+ * 2) backup cache for save/restore during power-downs */
+ priv->ucode_code.len = inst_size;
+ iwl3945_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
+
+ priv->ucode_data.len = data_size;
+ iwl3945_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
+
+ priv->ucode_data_backup.len = data_size;
+ iwl3945_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
+
+ if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
+ !priv->ucode_data_backup.v_addr)
+ goto err_pci_alloc;
+
+ /* Initialization instructions and data */
+ if (init_size && init_data_size) {
+ priv->ucode_init.len = init_size;
+ iwl3945_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
+
+ priv->ucode_init_data.len = init_data_size;
+ iwl3945_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
+
+ if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
+ goto err_pci_alloc;
+ }
+
+ /* Bootstrap (instructions only, no data) */
+ if (boot_size) {
+ priv->ucode_boot.len = boot_size;
+ iwl3945_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
+
+ if (!priv->ucode_boot.v_addr)
+ goto err_pci_alloc;
+ }
+
+ /* Copy images into buffers for card's bus-master reads ... */
+
+ /* Runtime instructions (first block of data in file) */
+ src = &ucode->data[0];
+ len = priv->ucode_code.len;
+ IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len);
+ memcpy(priv->ucode_code.v_addr, src, len);
+ IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
+ priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
+
+ /* Runtime data (2nd block)
+ * NOTE: Copy into backup buffer will be done in iwl3945_up() */
+ src = &ucode->data[inst_size];
+ len = priv->ucode_data.len;
+ IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len);
+ memcpy(priv->ucode_data.v_addr, src, len);
+ memcpy(priv->ucode_data_backup.v_addr, src, len);
+
+ /* Initialization instructions (3rd block) */
+ if (init_size) {
+ src = &ucode->data[inst_size + data_size];
+ len = priv->ucode_init.len;
+ IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
+ len);
+ memcpy(priv->ucode_init.v_addr, src, len);
+ }
+
+ /* Initialization data (4th block) */
+ if (init_data_size) {
+ src = &ucode->data[inst_size + data_size + init_size];
+ len = priv->ucode_init_data.len;
+ IWL_DEBUG_INFO("Copying (but not loading) init data len %d\n",
+ (int)len);
+ memcpy(priv->ucode_init_data.v_addr, src, len);
+ }
+
+ /* Bootstrap instructions (5th block) */
+ src = &ucode->data[inst_size + data_size + init_size + init_data_size];
+ len = priv->ucode_boot.len;
+ IWL_DEBUG_INFO("Copying (but not loading) boot instr len %d\n",
+ (int)len);
+ memcpy(priv->ucode_boot.v_addr, src, len);
+
+ /* We have our copies now, allow OS release its copies */
+ release_firmware(ucode_raw);
+ return 0;
+
+ err_pci_alloc:
+ IWL_ERROR("failed to allocate pci memory\n");
+ ret = -ENOMEM;
+ iwl3945_dealloc_ucode_pci(priv);
+
+ err_release:
+ release_firmware(ucode_raw);
+
+ error:
+ return ret;
+}
+
+
+/**
+ * iwl3945_set_ucode_ptrs - Set uCode address location
+ *
+ * Tell initialization uCode where to find runtime uCode.
+ *
+ * BSM registers initially contain pointers to initialization uCode.
+ * We need to replace them to load runtime uCode inst and data,
+ * and to save runtime data when powering down.
+ */
+static int iwl3945_set_ucode_ptrs(struct iwl3945_priv *priv)
+{
+ dma_addr_t pinst;
+ dma_addr_t pdata;
+ int rc = 0;
+ unsigned long flags;
+
+ /* bits 31:0 for 3945 */
+ pinst = priv->ucode_code.p_addr;
+ pdata = priv->ucode_data_backup.p_addr;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ rc = iwl3945_grab_nic_access(priv);
+ if (rc) {
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return rc;
+ }
+
+ /* Tell bootstrap uCode where to find image to load */
+ iwl3945_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
+ iwl3945_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
+ iwl3945_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
+ priv->ucode_data.len);
+
+ /* Inst bytecount must be last to set up, bit 31 signals uCode
+ * that all new ptr/size info is in place */
+ iwl3945_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
+ priv->ucode_code.len | BSM_DRAM_INST_LOAD);
+
+ iwl3945_release_nic_access(priv);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
+
+ return rc;
+}
+
+/**
+ * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
+ *
+ * Called after REPLY_ALIVE notification received from "initialize" uCode.
+ *
+ * Tell "initialize" uCode to go ahead and load the runtime uCode.
+ */
+static void iwl3945_init_alive_start(struct iwl3945_priv *priv)
+{
+ /* Check alive response for "valid" sign from uCode */
+ if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
+ /* We had an error bringing up the hardware, so take it
+ * all the way back down so we can try again */
+ IWL_DEBUG_INFO("Initialize Alive failed.\n");
+ goto restart;
+ }
+
+ /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
+ * This is a paranoid check, because we would not have gotten the
+ * "initialize" alive if code weren't properly loaded. */
+ if (iwl3945_verify_ucode(priv)) {
+ /* Runtime instruction load was bad;
+ * take it all the way back down so we can try again */
+ IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
+ goto restart;
+ }
+
+ /* Send pointers to protocol/runtime uCode image ... init code will
+ * load and launch runtime uCode, which will send us another "Alive"
+ * notification. */
+ IWL_DEBUG_INFO("Initialization Alive received.\n");
+ if (iwl3945_set_ucode_ptrs(priv)) {
+ /* Runtime instruction load won't happen;
+ * take it all the way back down so we can try again */
+ IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
+ goto restart;
+ }
+ return;
+
+ restart:
+ queue_work(priv->workqueue, &priv->restart);
+}
+
+
+/**
+ * iwl3945_alive_start - called after REPLY_ALIVE notification received
+ * from protocol/runtime uCode (initialization uCode's
+ * Alive gets handled by iwl3945_init_alive_start()).
+ */
+static void iwl3945_alive_start(struct iwl3945_priv *priv)
+{
+ int rc = 0;
+ int thermal_spin = 0;
+ u32 rfkill;
+
+ IWL_DEBUG_INFO("Runtime Alive received.\n");
+
+ if (priv->card_alive.is_valid != UCODE_VALID_OK) {
+ /* We had an error bringing up the hardware, so take it
+ * all the way back down so we can try again */
+ IWL_DEBUG_INFO("Alive failed.\n");
+ goto restart;
+ }
+
+ /* Initialize uCode has loaded Runtime uCode ... verify inst image.
+ * This is a paranoid check, because we would not have gotten the
+ * "runtime" alive if code weren't properly loaded. */
+ if (iwl3945_verify_ucode(priv)) {
+ /* Runtime instruction load was bad;
+ * take it all the way back down so we can try again */
+ IWL_DEBUG_INFO("Bad runtime uCode load.\n");
+ goto restart;
+ }
+
+ iwl3945_clear_stations_table(priv);
+
+ rc = iwl3945_grab_nic_access(priv);
+ if (rc) {
+ IWL_WARNING("Can not read rfkill status from adapter\n");
+ return;
+ }
+
+ rfkill = iwl3945_read_prph(priv, APMG_RFKILL_REG);
+ IWL_DEBUG_INFO("RFKILL status: 0x%x\n", rfkill);
+ iwl3945_release_nic_access(priv);
+
+ if (rfkill & 0x1) {
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
+ /* if rfkill is not on, then wait for thermal
+ * sensor in adapter to kick in */
+ while (iwl3945_hw_get_temperature(priv) == 0) {
+ thermal_spin++;
+ udelay(10);
+ }
+
+ if (thermal_spin)
+ IWL_DEBUG_INFO("Thermal calibration took %dus\n",
+ thermal_spin * 10);
+ } else
+ set_bit(STATUS_RF_KILL_HW, &priv->status);
+
+ /* After the ALIVE response, we can send commands to 3945 uCode */
+ set_bit(STATUS_ALIVE, &priv->status);
+
+ /* Clear out the uCode error bit if it is set */
+ clear_bit(STATUS_FW_ERROR, &priv->status);
+
+ rc = iwl3945_init_channel_map(priv);
+ if (rc) {
+ IWL_ERROR("initializing regulatory failed: %d\n", rc);
+ return;
+ }
+
+ iwl3945_init_geos(priv);
+
+ if (iwl3945_is_rfkill(priv))
+ return;
+
+ if (!priv->mac80211_registered) {
+ /* Unlock so any user space entry points can call back into
+ * the driver without a deadlock... */
+ mutex_unlock(&priv->mutex);
+ iwl3945_rate_control_register(priv->hw);
+ rc = ieee80211_register_hw(priv->hw);
+ priv->hw->conf.beacon_int = 100;
+ mutex_lock(&priv->mutex);
+
+ if (rc) {
+ iwl3945_rate_control_unregister(priv->hw);
+ IWL_ERROR("Failed to register network "
+ "device (error %d)\n", rc);
+ return;
+ }
+
+ priv->mac80211_registered = 1;
+
+ iwl3945_reset_channel_flag(priv);
+ } else
+ ieee80211_start_queues(priv->hw);
+
+ priv->active_rate = priv->rates_mask;
+ priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
+
+ iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode));
+
+ if (iwl3945_is_associated(priv)) {
+ struct iwl3945_rxon_cmd *active_rxon =
+ (struct iwl3945_rxon_cmd *)(&priv->active_rxon);
+
+ memcpy(&priv->staging_rxon, &priv->active_rxon,
+ sizeof(priv->staging_rxon));
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ } else {
+ /* Initialize our rx_config data */
+ iwl3945_connection_init_rx_config(priv);
+ memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
+ }
+
+ /* Configure Bluetooth device coexistence support */
+ iwl3945_send_bt_config(priv);
+
+ /* Configure the adapter for unassociated operation */
+ iwl3945_commit_rxon(priv);
+
+ /* At this point, the NIC is initialized and operational */
+ priv->notif_missed_beacons = 0;
+ set_bit(STATUS_READY, &priv->status);
+
+ iwl3945_reg_txpower_periodic(priv);
+
+ IWL_DEBUG_INFO("ALIVE processing complete.\n");
+
+ if (priv->error_recovering)
+ iwl3945_error_recovery(priv);
+
+ return;
+
+ restart:
+ queue_work(priv->workqueue, &priv->restart);
+}
+
+static void iwl3945_cancel_deferred_work(struct iwl3945_priv *priv);
+
+static void __iwl3945_down(struct iwl3945_priv *priv)
+{
+ unsigned long flags;
+ int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
+ struct ieee80211_conf *conf = NULL;
+
+ IWL_DEBUG_INFO(DRV_NAME " is going down\n");
+
+ conf = ieee80211_get_hw_conf(priv->hw);
+
+ if (!exit_pending)
+ set_bit(STATUS_EXIT_PENDING, &priv->status);
+
+ iwl3945_clear_stations_table(priv);
+
+ /* Unblock any waiting calls */
+ wake_up_interruptible_all(&priv->wait_command_queue);
+
+ iwl3945_cancel_deferred_work(priv);
+
+ /* Wipe out the EXIT_PENDING status bit if we are not actually
+ * exiting the module */
+ if (!exit_pending)
+ clear_bit(STATUS_EXIT_PENDING, &priv->status);
+
+ /* stop and reset the on-board processor */
+ iwl3945_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
+
+ /* tell the device to stop sending interrupts */
+ iwl3945_disable_interrupts(priv);
+
+ if (priv->mac80211_registered)
+ ieee80211_stop_queues(priv->hw);
+
+ /* If we have not previously called iwl3945_init() then
+ * clear all bits but the RF Kill and SUSPEND bits and return */
+ if (!iwl3945_is_init(priv)) {
+ priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
+ STATUS_RF_KILL_HW |
+ test_bit(STATUS_RF_KILL_SW, &priv->status) <<
+ STATUS_RF_KILL_SW |
+ test_bit(STATUS_IN_SUSPEND, &priv->status) <<
+ STATUS_IN_SUSPEND;
+ goto exit;
+ }
+
+ /* ...otherwise clear out all the status bits but the RF Kill and
+ * SUSPEND bits and continue taking the NIC down. */
+ priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
+ STATUS_RF_KILL_HW |
+ test_bit(STATUS_RF_KILL_SW, &priv->status) <<
+ STATUS_RF_KILL_SW |
+ test_bit(STATUS_IN_SUSPEND, &priv->status) <<
+ STATUS_IN_SUSPEND |
+ test_bit(STATUS_FW_ERROR, &priv->status) <<
+ STATUS_FW_ERROR;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl3945_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ iwl3945_hw_txq_ctx_stop(priv);
+ iwl3945_hw_rxq_stop(priv);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (!iwl3945_grab_nic_access(priv)) {
+ iwl3945_write_prph(priv, APMG_CLK_DIS_REG,
+ APMG_CLK_VAL_DMA_CLK_RQT);
+ iwl3945_release_nic_access(priv);
+ }
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ udelay(5);
+
+ iwl3945_hw_nic_stop_master(priv);
+ iwl3945_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
+ iwl3945_hw_nic_reset(priv);
+
+ exit:
+ memset(&priv->card_alive, 0, sizeof(struct iwl3945_alive_resp));
+
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+ priv->ibss_beacon = NULL;
+
+ /* clear out any free frames */
+ iwl3945_clear_free_frames(priv);
+}
+
+static void iwl3945_down(struct iwl3945_priv *priv)
+{
+ mutex_lock(&priv->mutex);
+ __iwl3945_down(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+#define MAX_HW_RESTARTS 5
+
+static int __iwl3945_up(struct iwl3945_priv *priv)
+{
+ DECLARE_MAC_BUF(mac);
+ int rc, i;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+ IWL_WARNING("Exit pending; will not bring the NIC up\n");
+ return -EIO;
+ }
+
+ if (test_bit(STATUS_RF_KILL_SW, &priv->status)) {
+ IWL_WARNING("Radio disabled by SW RF kill (module "
+ "parameter)\n");
+ return 0;
+ }
+
+ iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF);
+
+ rc = iwl3945_hw_nic_init(priv);
+ if (rc) {
+ IWL_ERROR("Unable to int nic\n");
+ return rc;
+ }
+
+ /* make sure rfkill handshake bits are cleared */
+ iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+ /* clear (again), then enable host interrupts */
+ iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF);
+ iwl3945_enable_interrupts(priv);
+
+ /* really make sure rfkill handshake bits are cleared */
+ iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+ /* Copy original ucode data image from disk into backup cache.
+ * This will be used to initialize the on-board processor's
+ * data SRAM for a clean start when the runtime program first loads. */
+ memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
+ priv->ucode_data.len);
+
+ for (i = 0; i < MAX_HW_RESTARTS; i++) {
+
+ iwl3945_clear_stations_table(priv);
+
+ /* load bootstrap state machine,
+ * load bootstrap program into processor's memory,
+ * prepare to load the "initialize" uCode */
+ rc = iwl3945_load_bsm(priv);
+
+ if (rc) {
+ IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc);
+ continue;
+ }
+
+ /* start card; "initialize" will load runtime ucode */
+ iwl3945_nic_start(priv);
+
+ /* MAC Address location in EEPROM is same for 3945/4965 */
+ get_eeprom_mac(priv, priv->mac_addr);
+ IWL_DEBUG_INFO("MAC address: %s\n",
+ print_mac(mac, priv->mac_addr));
+
+ SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
+
+ IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
+
+ return 0;
+ }
+
+ set_bit(STATUS_EXIT_PENDING, &priv->status);
+ __iwl3945_down(priv);
+
+ /* tried to restart and config the device for as long as our
+ * patience could withstand */
+ IWL_ERROR("Unable to initialize device after %d attempts.\n", i);
+ return -EIO;
+}
+
+
+/*****************************************************************************
+ *
+ * Workqueue callbacks
+ *
+ *****************************************************************************/
+
+static void iwl3945_bg_init_alive_start(void *p)
+{
+ struct iwl3945_priv *priv = p;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ iwl3945_init_alive_start(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl3945_bg_alive_start(void *p)
+{
+ struct iwl3945_priv *priv = p;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ iwl3945_alive_start(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl3945_bg_rf_kill(void *p)
+{
+ struct iwl3945_priv *priv = p;
+
+ wake_up_interruptible(&priv->wait_command_queue);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+
+ if (!iwl3945_is_rfkill(priv)) {
+ IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL,
+ "HW and/or SW RF Kill no longer active, restarting "
+ "device\n");
+ if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
+ queue_work(priv->workqueue, &priv->restart);
+ } else {
+
+ if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
+ IWL_DEBUG_RF_KILL("Can not turn radio back on - "
+ "disabled by SW switch\n");
+ else
+ IWL_WARNING("Radio Frequency Kill Switch is On:\n"
+ "Kill switch must be turned off for "
+ "wireless networking to work.\n");
+ }
+ mutex_unlock(&priv->mutex);
+}
+
+#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
+
+static void iwl3945_bg_scan_check(void *p)
+{
+ struct iwl3945_priv *priv = p;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ if (test_bit(STATUS_SCANNING, &priv->status) ||
+ test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+ IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN,
+ "Scan completion watchdog resetting adapter (%dms)\n",
+ jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
+
+ if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
+ iwl3945_send_scan_abort(priv);
+ }
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl3945_bg_request_scan(void *p)
+{
+ struct iwl3945_priv *priv = p;
+ struct iwl3945_host_cmd cmd = {
+ .id = REPLY_SCAN_CMD,
+ .len = sizeof(struct iwl3945_scan_cmd),
+ .meta.flags = CMD_SIZE_HUGE,
+ };
+ int rc = 0;
+ struct iwl3945_scan_cmd *scan;
+ struct ieee80211_conf *conf = NULL;
+ u8 direct_mask;
+ int phymode;
+
+ conf = ieee80211_get_hw_conf(priv->hw);
+
+ mutex_lock(&priv->mutex);
+
+ if (!iwl3945_is_ready(priv)) {
+ IWL_WARNING("request scan called when driver not ready.\n");
+ goto done;
+ }
+
+ /* Make sure the scan wasn't cancelled before this queued work
+ * was given the chance to run... */
+ if (!test_bit(STATUS_SCANNING, &priv->status))
+ goto done;
+
+ /* This should never be called or scheduled if there is currently
+ * a scan active in the hardware. */
+ if (test_bit(STATUS_SCAN_HW, &priv->status)) {
+ IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
+ "Ignoring second request.\n");
+ rc = -EIO;
+ goto done;
+ }
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+ IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
+ goto done;
+ }
+
+ if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+ IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
+ goto done;
+ }
+
+ if (iwl3945_is_rfkill(priv)) {
+ IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
+ goto done;
+ }
+
+ if (!test_bit(STATUS_READY, &priv->status)) {
+ IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
+ goto done;
+ }
+
+ if (!priv->scan_bands) {
+ IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
+ goto done;
+ }
+
+ if (!priv->scan) {
+ priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) +
+ IWL_MAX_SCAN_SIZE, GFP_KERNEL);
+ if (!priv->scan) {
+ rc = -ENOMEM;
+ goto done;
+ }
+ }
+ scan = priv->scan;
+ memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE);
+
+ scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
+ scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
+
+ if (iwl3945_is_associated(priv)) {
+ u16 interval = 0;
+ u32 extra;
+ u32 suspend_time = 100;
+ u32 scan_suspend_time = 100;
+ unsigned long flags;
+
+ IWL_DEBUG_INFO("Scanning while associated...\n");
+
+ spin_lock_irqsave(&priv->lock, flags);
+ interval = priv->beacon_int;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ scan->suspend_time = 0;
+ scan->max_out_time = cpu_to_le32(200 * 1024);
+ if (!interval)
+ interval = suspend_time;
+ /*
+ * suspend time format:
+ * 0-19: beacon interval in usec (time before exec.)
+ * 20-23: 0
+ * 24-31: number of beacons (suspend between channels)
+ */
+
+ extra = (suspend_time / interval) << 24;
+ scan_suspend_time = 0xFF0FFFFF &
+ (extra | ((suspend_time % interval) * 1024));
+
+ scan->suspend_time = cpu_to_le32(scan_suspend_time);
+ IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
+ scan_suspend_time, interval);
+ }
+
+ /* We should add the ability for user to lock to PASSIVE ONLY */
+ if (priv->one_direct_scan) {
+ IWL_DEBUG_SCAN
+ ("Kicking off one direct scan for '%s'\n",
+ iwl3945_escape_essid(priv->direct_ssid,
+ priv->direct_ssid_len));
+ scan->direct_scan[0].id = WLAN_EID_SSID;
+ scan->direct_scan[0].len = priv->direct_ssid_len;
+ memcpy(scan->direct_scan[0].ssid,
+ priv->direct_ssid, priv->direct_ssid_len);
+ direct_mask = 1;
+ } else if (!iwl3945_is_associated(priv) && priv->essid_len) {
+ scan->direct_scan[0].id = WLAN_EID_SSID;
+ scan->direct_scan[0].len = priv->essid_len;
+ memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len);
+ direct_mask = 1;
+ } else
+ direct_mask = 0;
+
+ /* We don't build a direct scan probe request; the uCode will do
+ * that based on the direct_mask added to each channel entry */
+ scan->tx_cmd.len = cpu_to_le16(
+ iwl3945_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
+ IWL_MAX_SCAN_SIZE - sizeof(scan), 0));
+ scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
+ scan->tx_cmd.sta_id = priv->hw_setting.bcast_sta_id;
+ scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+
+ /* flags + rate selection */
+
+ switch (priv->scan_bands) {
+ case 2:
+ scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
+ scan->tx_cmd.rate = IWL_RATE_1M_PLCP;
+ scan->good_CRC_th = 0;
+ phymode = MODE_IEEE80211G;
+ break;
+
+ case 1:
+ scan->tx_cmd.rate = IWL_RATE_6M_PLCP;
+ scan->good_CRC_th = IWL_GOOD_CRC_TH;
+ phymode = MODE_IEEE80211A;
+ break;
+
+ default:
+ IWL_WARNING("Invalid scan band count\n");
+ goto done;
+ }
+
+ /* select Rx antennas */
+ scan->flags |= iwl3945_get_antenna_flags(priv);
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR)
+ scan->filter_flags = RXON_FILTER_PROMISC_MSK;
+
+ if (direct_mask)
+ IWL_DEBUG_SCAN
+ ("Initiating direct scan for %s.\n",
+ iwl3945_escape_essid(priv->essid, priv->essid_len));
+ else
+ IWL_DEBUG_SCAN("Initiating indirect scan.\n");
+
+ scan->channel_count =
+ iwl3945_get_channels_for_scan(
+ priv, phymode, 1, /* active */
+ direct_mask,
+ (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
+
+ cmd.len += le16_to_cpu(scan->tx_cmd.len) +
+ scan->channel_count * sizeof(struct iwl3945_scan_channel);
+ cmd.data = scan;
+ scan->len = cpu_to_le16(cmd.len);
+
+ set_bit(STATUS_SCAN_HW, &priv->status);
+ rc = iwl3945_send_cmd_sync(priv, &cmd);
+ if (rc)
+ goto done;
+
+ queue_delayed_work(priv->workqueue, &priv->scan_check,
+ IWL_SCAN_CHECK_WATCHDOG);
+
+ mutex_unlock(&priv->mutex);
+ return;
+
+ done:
+ /* inform mac80211 scan aborted */
+ queue_work(priv->workqueue, &priv->scan_completed);
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl3945_bg_up(void *p)
+{
+ struct iwl3945_priv *priv = p;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ __iwl3945_up(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl3945_bg_restart(void *p)
+{
+ struct iwl3945_priv *priv = p;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ iwl3945_down(priv);
+ queue_work(priv->workqueue, &priv->up);
+}
+
+static void iwl3945_bg_rx_replenish(void *p)
+{
+ struct iwl3945_priv *priv = p;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ iwl3945_rx_replenish(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+#define IWL_DELAY_NEXT_SCAN (HZ*2)
+
+static void iwl3945_bg_post_associate(void *p)
+{
+ struct iwl3945_priv *priv = p;
+
+ int rc = 0;
+ struct ieee80211_conf *conf = NULL;
+ DECLARE_MAC_BUF(mac);
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+ IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__);
+ return;
+ }
+
+
+ IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
+ priv->assoc_id,
+ print_mac(mac, priv->active_rxon.bssid_addr));
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+
+ if (!priv->interface_id || !priv->is_open) {
+ mutex_unlock(&priv->mutex);
+ return;
+ }
+ iwl3945_scan_cancel_timeout(priv, 200);
+
+ conf = ieee80211_get_hw_conf(priv->hw);
+
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl3945_commit_rxon(priv);
+
+ memset(&priv->rxon_timing, 0, sizeof(struct iwl3945_rxon_time_cmd));
+ iwl3945_setup_rxon_timing(priv);
+ rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING,
+ sizeof(priv->rxon_timing), &priv->rxon_timing);
+ if (rc)
+ IWL_WARNING("REPLY_RXON_TIMING failed - "
+ "Attempting to continue.\n");
+
+ priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
+
+ priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
+
+ IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
+ priv->assoc_id, priv->beacon_int);
+
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+ if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ }
+
+ iwl3945_commit_rxon(priv);
+
+ switch (priv->iw_mode) {
+ case IEEE80211_IF_TYPE_STA:
+ iwl3945_rate_scale_init(priv->hw, IWL_AP_ID);
+ break;
+
+ case IEEE80211_IF_TYPE_IBSS:
+
+ /* clear out the station table */
+ iwl3945_clear_stations_table(priv);
+
+ iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0);
+ iwl3945_add_station(priv, priv->bssid, 0, 0);
+ iwl3945_sync_sta(priv, IWL_STA_ID,
+ (priv->phymode == MODE_IEEE80211A)?
+ IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
+ CMD_ASYNC);
+ iwl3945_rate_scale_init(priv->hw, IWL_STA_ID);
+ iwl3945_send_beacon_cmd(priv);
+
+ break;
+
+ default:
+ IWL_ERROR("%s Should not be called in %d mode\n",
+ __FUNCTION__, priv->iw_mode);
+ break;
+ }
+
+ iwl3945_sequence_reset(priv);
+
+#ifdef CONFIG_IWL3945_QOS
+ iwl3945_activate_qos(priv, 0);
+#endif /* CONFIG_IWL3945_QOS */
+ /* we have just associated, don't start scan too early */
+ priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl3945_bg_abort_scan(void *p)
+{
+ struct iwl3945_priv *priv = p;
+
+ if (!iwl3945_is_ready(priv))
+ return;
+
+ mutex_lock(&priv->mutex);
+
+ set_bit(STATUS_SCAN_ABORTING, &priv->status);
+ iwl3945_send_scan_abort(priv);
+
+ mutex_unlock(&priv->mutex);
+}
+
+static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
+
+static void iwl3945_bg_scan_completed(void *p)
+{
+ struct iwl3945_priv *priv = p;
+
+ IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n");
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ if (priv->cache_conf)
+ iwl3945_mac_config(priv->hw, priv->cache_conf);
+
+ ieee80211_scan_completed(priv->hw);
+
+ /* Since setting the TXPOWER may have been deferred while
+ * performing the scan, fire one off */
+ mutex_lock(&priv->mutex);
+ iwl3945_hw_reg_send_txpower(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+/*****************************************************************************
+ *
+ * mac80211 entry point functions
+ *
+ *****************************************************************************/
+
+static int iwl3945_mac_start(struct ieee80211_hw *hw)
+{
+ struct iwl3945_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ /* we should be verifying the device is ready to be opened */
+ mutex_lock(&priv->mutex);
+
+ priv->is_open = 1;
+
+ if (!iwl3945_is_rfkill(priv))
+ ieee80211_start_queues(priv->hw);
+
+ mutex_unlock(&priv->mutex);
+ IWL_DEBUG_MAC80211("leave\n");
+ return 0;
+}
+
+static void iwl3945_mac_stop(struct ieee80211_hw *hw)
+{
+ struct iwl3945_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+
+ mutex_lock(&priv->mutex);
+ /* stop mac, cancel any scan request and clear
+ * RXON_FILTER_ASSOC_MSK BIT
+ */
+ priv->is_open = 0;
+ if (!iwl3945_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF not ready\n");
+ mutex_unlock(&priv->mutex);
+ return;
+ }
+
+ iwl3945_scan_cancel_timeout(priv, 100);
+ cancel_delayed_work(&priv->post_associate);
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl3945_commit_rxon(priv);
+ mutex_unlock(&priv->mutex);
+
+ IWL_DEBUG_MAC80211("leave\n");
+}
+
+static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_tx_control *ctl)
+{
+ struct iwl3945_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
+ IWL_DEBUG_MAC80211("leave - monitor\n");
+ return -1;
+ }
+
+ IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
+ ctl->tx_rate);
+
+ if (iwl3945_tx_skb(priv, skb, ctl))
+ dev_kfree_skb_any(skb);
+
+ IWL_DEBUG_MAC80211("leave\n");
+ return 0;
+}
+
+static int iwl3945_mac_add_interface(struct ieee80211_hw *hw,
+ struct ieee80211_if_init_conf *conf)
+{
+ struct iwl3945_priv *priv = hw->priv;
+ unsigned long flags;
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_MAC80211("enter: id %d, type %d\n", conf->if_id, conf->type);
+
+ if (priv->interface_id) {
+ IWL_DEBUG_MAC80211("leave - interface_id != 0\n");
+ return -EOPNOTSUPP;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->interface_id = conf->if_id;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ mutex_lock(&priv->mutex);
+
+ if (conf->mac_addr) {
+ IWL_DEBUG_MAC80211("Set: %s\n", print_mac(mac, conf->mac_addr));
+ memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
+ }
+
+ iwl3945_set_mode(priv, conf->type);
+
+ IWL_DEBUG_MAC80211("leave\n");
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+
+/**
+ * iwl3945_mac_config - mac80211 config callback
+ *
+ * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
+ * be set inappropriately and the driver currently sets the hardware up to
+ * use it whenever needed.
+ */
+static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+{
+ struct iwl3945_priv *priv = hw->priv;
+ const struct iwl3945_channel_info *ch_info;
+ unsigned long flags;
+ int ret = 0;
+
+ mutex_lock(&priv->mutex);
+ IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel);
+
+ if (!iwl3945_is_ready(priv)) {
+ IWL_DEBUG_MAC80211("leave - not ready\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ /* TODO: Figure out how to get ieee80211_local->sta_scanning w/ only
+ * what is exposed through include/ declarations */
+ if (unlikely(!iwl3945_param_disable_hw_scan &&
+ test_bit(STATUS_SCANNING, &priv->status))) {
+
+ if (priv->cache_conf)
+ IWL_DEBUG_MAC80211("leave - still scanning\n");
+ else {
+ /* Cache the configuration now so that we can
+ * replay it after the hardware scan is finished. */
+ priv->cache_conf = kmalloc(sizeof(*conf), GFP_KERNEL);
+ if (priv->cache_conf) {
+ memcpy(priv->cache_conf, conf, sizeof(*conf));
+ IWL_DEBUG_MAC80211("leave - scanning\n");
+ } else {
+ IWL_DEBUG_MAC80211("leave - no memory\n");
+ ret = -ENOMEM;
+ }
+ }
+ mutex_unlock(&priv->mutex);
+ return ret;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ ch_info = iwl3945_get_channel_info(priv, conf->phymode, conf->channel);
+ if (!is_channel_valid(ch_info)) {
+ IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this SKU.\n",
+ conf->channel, conf->phymode);
+ IWL_DEBUG_MAC80211("leave - invalid channel\n");
+ spin_unlock_irqrestore(&priv->lock, flags);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ iwl3945_set_rxon_channel(priv, conf->phymode, conf->channel);
+
+ iwl3945_set_flags_for_phymode(priv, conf->phymode);
+
+ /* The list of supported rates and rate mask can be different
+ * for each phymode; since the phymode may have changed, reset
+ * the rate mask to what mac80211 lists */
+ iwl3945_set_rate(priv);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+#ifdef IEEE80211_CONF_CHANNEL_SWITCH
+ if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
+ iwl3945_hw_channel_switch(priv, conf->channel);
+ goto out;
+ }
+#endif
+
+ iwl3945_radio_kill_sw(priv, !conf->radio_enabled);
+
+ if (!conf->radio_enabled) {
+ IWL_DEBUG_MAC80211("leave - radio disabled\n");
+ goto out;
+ }
+
+ if (iwl3945_is_rfkill(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF kill\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ iwl3945_set_rate(priv);
+
+ if (memcmp(&priv->active_rxon,
+ &priv->staging_rxon, sizeof(priv->staging_rxon)))
+ iwl3945_commit_rxon(priv);
+ else
+ IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+out:
+ if (priv->cache_conf) {
+ kfree(priv->cache_conf);
+ priv->cache_conf = NULL;
+ }
+ mutex_unlock(&priv->mutex);
+ return ret;
+}
+
+static void iwl3945_config_ap(struct iwl3945_priv *priv)
+{
+ int rc = 0;
+
+ if (priv->status & STATUS_EXIT_PENDING)
+ return;
+
+ /* The following should be done only at AP bring up */
+ if ((priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) == 0) {
+
+ /* RXON - unassoc (to set timing command) */
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl3945_commit_rxon(priv);
+
+ /* RXON Timing */
+ memset(&priv->rxon_timing, 0, sizeof(struct iwl3945_rxon_time_cmd));
+ iwl3945_setup_rxon_timing(priv);
+ rc = iwl3945_send_cmd_pdu(priv, REPLY_RXON_TIMING,
+ sizeof(priv->rxon_timing), &priv->rxon_timing);
+ if (rc)
+ IWL_WARNING("REPLY_RXON_TIMING failed - "
+ "Attempting to continue.\n");
+
+ /* FIXME: what should be the assoc_id for AP? */
+ priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
+ priv->staging_rxon.flags |=
+ RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ priv->staging_rxon.flags &=
+ ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+ if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
+ if (priv->assoc_capability &
+ WLAN_CAPABILITY_SHORT_SLOT_TIME)
+ priv->staging_rxon.flags |=
+ RXON_FLG_SHORT_SLOT_MSK;
+ else
+ priv->staging_rxon.flags &=
+ ~RXON_FLG_SHORT_SLOT_MSK;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+ priv->staging_rxon.flags &=
+ ~RXON_FLG_SHORT_SLOT_MSK;
+ }
+ /* restore RXON assoc */
+ priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
+ iwl3945_commit_rxon(priv);
+ iwl3945_add_station(priv, iwl3945_broadcast_addr, 0, 0);
+ }
+ iwl3945_send_beacon_cmd(priv);
+
+ /* FIXME - we need to add code here to detect a totally new
+ * configuration, reset the AP, unassoc, rxon timing, assoc,
+ * clear sta table, add BCAST sta... */
+}
+
+static int iwl3945_mac_config_interface(struct ieee80211_hw *hw, int if_id,
+ struct ieee80211_if_conf *conf)
+{
+ struct iwl3945_priv *priv = hw->priv;
+ DECLARE_MAC_BUF(mac);
+ unsigned long flags;
+ int rc;
+
+ if (conf == NULL)
+ return -EIO;
+
+ /* XXX: this MUST use conf->mac_addr */
+
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
+ (!conf->beacon || !conf->ssid_len)) {
+ IWL_DEBUG_MAC80211
+ ("Leaving in AP mode because HostAPD is not ready.\n");
+ return 0;
+ }
+
+ mutex_lock(&priv->mutex);
+
+ IWL_DEBUG_MAC80211("enter: interface id %d\n", if_id);
+ if (conf->bssid)
+ IWL_DEBUG_MAC80211("bssid: %s\n",
+ print_mac(mac, conf->bssid));
+
+/*
+ * very dubious code was here; the probe filtering flag is never set:
+ *
+ if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
+ !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
+ */
+ if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) {
+ IWL_DEBUG_MAC80211("leave - scanning\n");
+ mutex_unlock(&priv->mutex);
+ return 0;
+ }
+
+ if (priv->interface_id != if_id) {
+ IWL_DEBUG_MAC80211("leave - interface_id != if_id\n");
+ mutex_unlock(&priv->mutex);
+ return 0;
+ }
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+ if (!conf->bssid) {
+ conf->bssid = priv->mac_addr;
+ memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
+ IWL_DEBUG_MAC80211("bssid was set to: %s\n",
+ print_mac(mac, conf->bssid));
+ }
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = conf->beacon;
+ }
+
+ if (iwl3945_is_rfkill(priv))
+ goto done;
+
+ if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
+ !is_multicast_ether_addr(conf->bssid)) {
+ /* If there is currently a HW scan going on in the background
+ * then we need to cancel it else the RXON below will fail. */
+ if (iwl3945_scan_cancel_timeout(priv, 100)) {
+ IWL_WARNING("Aborted scan still in progress "
+ "after 100ms\n");
+ IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
+ mutex_unlock(&priv->mutex);
+ return -EAGAIN;
+ }
+ memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN);
+
+ /* TODO: Audit driver for usage of these members and see
+ * if mac80211 deprecates them (priv->bssid looks like it
+ * shouldn't be there, but I haven't scanned the IBSS code
+ * to verify) - jpk */
+ memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
+ iwl3945_config_ap(priv);
+ else {
+ rc = iwl3945_commit_rxon(priv);
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc)
+ iwl3945_add_station(priv,
+ priv->active_rxon.bssid_addr, 1, 0);
+ }
+
+ } else {
+ iwl3945_scan_cancel_timeout(priv, 100);
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl3945_commit_rxon(priv);
+ }
+
+ done:
+ spin_lock_irqsave(&priv->lock, flags);
+ if (!conf->ssid_len)
+ memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
+ else
+ memcpy(priv->essid, conf->ssid, conf->ssid_len);
+
+ priv->essid_len = conf->ssid_len;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ IWL_DEBUG_MAC80211("leave\n");
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+
+static void iwl3945_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *total_flags,
+ int mc_count, struct dev_addr_list *mc_list)
+{
+ /*
+ * XXX: dummy
+ * see also iwl3945_connection_init_rx_config
+ */
+ *total_flags = 0;
+}
+
+static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_if_init_conf *conf)
+{
+ struct iwl3945_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ mutex_lock(&priv->mutex);
+
+ if (iwl3945_is_ready_rf(priv)) {
+ iwl3945_scan_cancel_timeout(priv, 100);
+ cancel_delayed_work(&priv->post_associate);
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl3945_commit_rxon(priv);
+ }
+ if (priv->interface_id == conf->if_id) {
+ priv->interface_id = 0;
+ memset(priv->bssid, 0, ETH_ALEN);
+ memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
+ priv->essid_len = 0;
+ }
+ mutex_unlock(&priv->mutex);
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+}
+
+static int iwl3945_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
+{
+ int rc = 0;
+ unsigned long flags;
+ struct iwl3945_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ mutex_lock(&priv->mutex);
+ spin_lock_irqsave(&priv->lock, flags);
+
+ if (!iwl3945_is_ready_rf(priv)) {
+ rc = -EIO;
+ IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
+ goto out_unlock;
+ }
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */
+ rc = -EIO;
+ IWL_ERROR("ERROR: APs don't scan\n");
+ goto out_unlock;
+ }
+
+ /* we don't schedule scan within next_scan_jiffies period */
+ if (priv->next_scan_jiffies &&
+ time_after(priv->next_scan_jiffies, jiffies)) {
+ rc = -EAGAIN;
+ goto out_unlock;
+ }
+ /* if we just finished scan ask for delay */
+ if (priv->last_scan_jiffies && time_after(priv->last_scan_jiffies +
+ IWL_DELAY_NEXT_SCAN, jiffies)) {
+ rc = -EAGAIN;
+ goto out_unlock;
+ }
+ if (len) {
+ IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
+ iwl3945_escape_essid(ssid, len), (int)len);
+
+ priv->one_direct_scan = 1;
+ priv->direct_ssid_len = (u8)
+ min((u8) len, (u8) IW_ESSID_MAX_SIZE);
+ memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
+ } else
+ priv->one_direct_scan = 0;
+
+ rc = iwl3945_scan_initiate(priv);
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+out_unlock:
+ spin_unlock_irqrestore(&priv->lock, flags);
+ mutex_unlock(&priv->mutex);
+
+ return rc;
+}
+
+static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+ const u8 *local_addr, const u8 *addr,
+ struct ieee80211_key_conf *key)
+{
+ struct iwl3945_priv *priv = hw->priv;
+ int rc = 0;
+ u8 sta_id;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (!iwl3945_param_hwcrypto) {
+ IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (is_zero_ether_addr(addr))
+ /* only support pairwise keys */
+ return -EOPNOTSUPP;
+
+ sta_id = iwl3945_hw_find_station(priv, addr);
+ if (sta_id == IWL_INVALID_STATION) {
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
+ print_mac(mac, addr));
+ return -EINVAL;
+ }
+
+ mutex_lock(&priv->mutex);
+
+ iwl3945_scan_cancel_timeout(priv, 100);
+
+ switch (cmd) {
+ case SET_KEY:
+ rc = iwl3945_update_sta_key_info(priv, key, sta_id);
+ if (!rc) {
+ iwl3945_set_rxon_hwcrypto(priv, 1);
+ iwl3945_commit_rxon(priv);
+ key->hw_key_idx = sta_id;
+ IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
+ key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+ }
+ break;
+ case DISABLE_KEY:
+ rc = iwl3945_clear_sta_key_info(priv, sta_id);
+ if (!rc) {
+ iwl3945_set_rxon_hwcrypto(priv, 0);
+ iwl3945_commit_rxon(priv);
+ IWL_DEBUG_MAC80211("disable hwcrypto key\n");
+ }
+ break;
+ default:
+ rc = -EINVAL;
+ }
+
+ IWL_DEBUG_MAC80211("leave\n");
+ mutex_unlock(&priv->mutex);
+
+ return rc;
+}
+
+static int iwl3945_mac_conf_tx(struct ieee80211_hw *hw, int queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ struct iwl3945_priv *priv = hw->priv;
+#ifdef CONFIG_IWL3945_QOS
+ unsigned long flags;
+ int q;
+#endif /* CONFIG_IWL3945_QOS */
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (!iwl3945_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF not ready\n");
+ return -EIO;
+ }
+
+ if (queue >= AC_NUM) {
+ IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
+ return 0;
+ }
+
+#ifdef CONFIG_IWL3945_QOS
+ if (!priv->qos_data.qos_enable) {
+ priv->qos_data.qos_active = 0;
+ IWL_DEBUG_MAC80211("leave - qos not enabled\n");
+ return 0;
+ }
+ q = AC_NUM - 1 - queue;
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
+ priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
+ priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
+ priv->qos_data.def_qos_parm.ac[q].edca_txop =
+ cpu_to_le16((params->burst_time * 100));
+
+ priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
+ priv->qos_data.qos_active = 1;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ mutex_lock(&priv->mutex);
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
+ iwl3945_activate_qos(priv, 1);
+ else if (priv->assoc_id && iwl3945_is_associated(priv))
+ iwl3945_activate_qos(priv, 0);
+
+ mutex_unlock(&priv->mutex);
+
+#endif /*CONFIG_IWL3945_QOS */
+
+ IWL_DEBUG_MAC80211("leave\n");
+ return 0;
+}
+
+static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw,
+ struct ieee80211_tx_queue_stats *stats)
+{
+ struct iwl3945_priv *priv = hw->priv;
+ int i, avail;
+ struct iwl3945_tx_queue *txq;
+ struct iwl3945_queue *q;
+ unsigned long flags;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (!iwl3945_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF not ready\n");
+ return -EIO;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ for (i = 0; i < AC_NUM; i++) {
+ txq = &priv->txq[i];
+ q = &txq->q;
+ avail = iwl3945_queue_space(q);
+
+ stats->data[i].len = q->n_window - avail;
+ stats->data[i].limit = q->n_window - q->high_mark;
+ stats->data[i].count = q->n_window;
+
+ }
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+ return 0;
+}
+
+static int iwl3945_mac_get_stats(struct ieee80211_hw *hw,
+ struct ieee80211_low_level_stats *stats)
+{
+ IWL_DEBUG_MAC80211("enter\n");
+ IWL_DEBUG_MAC80211("leave\n");
+
+ return 0;
+}
+
+static u64 iwl3945_mac_get_tsf(struct ieee80211_hw *hw)
+{
+ IWL_DEBUG_MAC80211("enter\n");
+ IWL_DEBUG_MAC80211("leave\n");
+
+ return 0;
+}
+
+static void iwl3945_mac_reset_tsf(struct ieee80211_hw *hw)
+{
+ struct iwl3945_priv *priv = hw->priv;
+ unsigned long flags;
+
+ mutex_lock(&priv->mutex);
+ IWL_DEBUG_MAC80211("enter\n");
+
+#ifdef CONFIG_IWL3945_QOS
+ iwl3945_reset_qos(priv);
+#endif
+ cancel_delayed_work(&priv->post_associate);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->assoc_id = 0;
+ priv->assoc_capability = 0;
+ priv->call_post_assoc_from_beacon = 0;
+
+ /* new association get rid of ibss beacon skb */
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = NULL;
+
+ priv->beacon_int = priv->hw->conf.beacon_int;
+ priv->timestamp1 = 0;
+ priv->timestamp0 = 0;
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_STA))
+ priv->beacon_int = 0;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (!iwl3945_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - not ready\n");
+ mutex_unlock(&priv->mutex);
+ return;
+ }
+
+ /* we are restarting association process
+ * clear RXON_FILTER_ASSOC_MSK bit
+ */
+ if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
+ iwl3945_scan_cancel_timeout(priv, 100);
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl3945_commit_rxon(priv);
+ }
+
+ /* Per mac80211.h: This is only used in IBSS mode... */
+ if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
+
+ IWL_DEBUG_MAC80211("leave - not in IBSS\n");
+ mutex_unlock(&priv->mutex);
+ return;
+ }
+
+ priv->only_active_channel = 0;
+
+ iwl3945_set_rate(priv);
+
+ mutex_unlock(&priv->mutex);
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+}
+
+static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_tx_control *control)
+{
+ struct iwl3945_priv *priv = hw->priv;
+ unsigned long flags;
+
+ mutex_lock(&priv->mutex);
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (!iwl3945_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF not ready\n");
+ mutex_unlock(&priv->mutex);
+ return -EIO;
+ }
+
+ if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
+ IWL_DEBUG_MAC80211("leave - not IBSS\n");
+ mutex_unlock(&priv->mutex);
+ return -EIO;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = skb;
+
+ priv->assoc_id = 0;
+
+ IWL_DEBUG_MAC80211("leave\n");
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+#ifdef CONFIG_IWL3945_QOS
+ iwl3945_reset_qos(priv);
+#endif
+
+ queue_work(priv->workqueue, &priv->post_associate);
+
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+
+/*****************************************************************************
+ *
+ * sysfs attributes
+ *
+ *****************************************************************************/
+
+#ifdef CONFIG_IWL3945_DEBUG
+
+/*
+ * The following adds a new attribute to the sysfs representation
+ * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
+ * used for controlling the debug level.
+ *
+ * See the level definitions in iwl for details.
+ */
+
+static ssize_t show_debug_level(struct device_driver *d, char *buf)
+{
+ return sprintf(buf, "0x%08X\n", iwl3945_debug_level);
+}
+static ssize_t store_debug_level(struct device_driver *d,
+ const char *buf, size_t count)
+{
+ char *p = (char *)buf;
+ u32 val;
+
+ val = simple_strtoul(p, &p, 0);
+ if (p == buf)
+ printk(KERN_INFO DRV_NAME
+ ": %s is not in hex or decimal form.\n", buf);
+ else
+ iwl3945_debug_level = val;
+
+ return strnlen(buf, count);
+}
+
+static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
+ show_debug_level, store_debug_level);
+
+#endif /* CONFIG_IWL3945_DEBUG */
+
+static ssize_t show_rf_kill(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ /*
+ * 0 - RF kill not enabled
+ * 1 - SW based RF kill active (sysfs)
+ * 2 - HW based RF kill active
+ * 3 - Both HW and SW based RF kill active
+ */
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data;
+ int val = (test_bit(STATUS_RF_KILL_SW, &priv->status) ? 0x1 : 0x0) |
+ (test_bit(STATUS_RF_KILL_HW, &priv->status) ? 0x2 : 0x0);
+
+ return sprintf(buf, "%i\n", val);
+}
+
+static ssize_t store_rf_kill(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data;
+
+ mutex_lock(&priv->mutex);
+ iwl3945_radio_kill_sw(priv, buf[0] == '1');
+ mutex_unlock(&priv->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
+
+static ssize_t show_temperature(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data;
+
+ if (!iwl3945_is_alive(priv))
+ return -EAGAIN;
+
+ return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv));
+}
+
+static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
+
+static ssize_t show_rs_window(struct device *d,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct iwl3945_priv *priv = d->driver_data;
+ return iwl3945_fill_rs_info(priv->hw, buf, IWL_AP_ID);
+}
+static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL);
+
+static ssize_t show_tx_power(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data;
+ return sprintf(buf, "%d\n", priv->user_txpower_limit);
+}
+
+static ssize_t store_tx_power(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data;
+ char *p = (char *)buf;
+ u32 val;
+
+ val = simple_strtoul(p, &p, 10);
+ if (p == buf)
+ printk(KERN_INFO DRV_NAME
+ ": %s is not in decimal form.\n", buf);
+ else
+ iwl3945_hw_reg_set_txpower(priv, val);
+
+ return count;
+}
+
+static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
+
+static ssize_t show_flags(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data;
+
+ return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
+}
+
+static ssize_t store_flags(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data;
+ u32 flags = simple_strtoul(buf, NULL, 0);
+
+ mutex_lock(&priv->mutex);
+ if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
+ /* Cancel any currently running scans... */
+ if (iwl3945_scan_cancel_timeout(priv, 100))
+ IWL_WARNING("Could not cancel scan.\n");
+ else {
+ IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
+ flags);
+ priv->staging_rxon.flags = cpu_to_le32(flags);
+ iwl3945_commit_rxon(priv);
+ }
+ }
+ mutex_unlock(&priv->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
+
+static ssize_t show_filter_flags(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data;
+
+ return sprintf(buf, "0x%04X\n",
+ le32_to_cpu(priv->active_rxon.filter_flags));
+}
+
+static ssize_t store_filter_flags(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data;
+ u32 filter_flags = simple_strtoul(buf, NULL, 0);
+
+ mutex_lock(&priv->mutex);
+ if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
+ /* Cancel any currently running scans... */
+ if (iwl3945_scan_cancel_timeout(priv, 100))
+ IWL_WARNING("Could not cancel scan.\n");
+ else {
+ IWL_DEBUG_INFO("Committing rxon.filter_flags = "
+ "0x%04X\n", filter_flags);
+ priv->staging_rxon.filter_flags =
+ cpu_to_le32(filter_flags);
+ iwl3945_commit_rxon(priv);
+ }
+ }
+ mutex_unlock(&priv->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
+ store_filter_flags);
+
+static ssize_t show_tune(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data;
+
+ return sprintf(buf, "0x%04X\n",
+ (priv->phymode << 8) |
+ le16_to_cpu(priv->active_rxon.channel));
+}
+
+static void iwl3945_set_flags_for_phymode(struct iwl3945_priv *priv, u8 phymode);
+
+static ssize_t store_tune(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data;
+ char *p = (char *)buf;
+ u16 tune = simple_strtoul(p, &p, 0);
+ u8 phymode = (tune >> 8) & 0xff;
+ u16 channel = tune & 0xff;
+
+ IWL_DEBUG_INFO("Tune request to:%d channel:%d\n", phymode, channel);
+
+ mutex_lock(&priv->mutex);
+ if ((le16_to_cpu(priv->staging_rxon.channel) != channel) ||
+ (priv->phymode != phymode)) {
+ const struct iwl3945_channel_info *ch_info;
+
+ ch_info = iwl3945_get_channel_info(priv, phymode, channel);
+ if (!ch_info) {
+ IWL_WARNING("Requested invalid phymode/channel "
+ "combination: %d %d\n", phymode, channel);
+ mutex_unlock(&priv->mutex);
+ return -EINVAL;
+ }
+
+ /* Cancel any currently running scans... */
+ if (iwl3945_scan_cancel_timeout(priv, 100))
+ IWL_WARNING("Could not cancel scan.\n");
+ else {
+ IWL_DEBUG_INFO("Committing phymode and "
+ "rxon.channel = %d %d\n",
+ phymode, channel);
+
+ iwl3945_set_rxon_channel(priv, phymode, channel);
+ iwl3945_set_flags_for_phymode(priv, phymode);
+
+ iwl3945_set_rate(priv);
+ iwl3945_commit_rxon(priv);
+ }
+ }
+ mutex_unlock(&priv->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(tune, S_IWUSR | S_IRUGO, show_tune, store_tune);
+
+#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
+
+static ssize_t show_measurement(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = dev_get_drvdata(d);
+ struct iwl3945_spectrum_notification measure_report;
+ u32 size = sizeof(measure_report), len = 0, ofs = 0;
+ u8 *data = (u8 *) & measure_report;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (!(priv->measurement_status & MEASUREMENT_READY)) {
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return 0;
+ }
+ memcpy(&measure_report, &priv->measure_report, size);
+ priv->measurement_status = 0;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ while (size && (PAGE_SIZE - len)) {
+ hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
+ PAGE_SIZE - len, 1);
+ len = strlen(buf);
+ if (PAGE_SIZE - len)
+ buf[len++] = '\n';
+
+ ofs += 16;
+ size -= min(size, 16U);
+ }
+
+ return len;
+}
+
+static ssize_t store_measurement(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl3945_priv *priv = dev_get_drvdata(d);
+ struct ieee80211_measurement_params params = {
+ .channel = le16_to_cpu(priv->active_rxon.channel),
+ .start_time = cpu_to_le64(priv->last_tsf),
+ .duration = cpu_to_le16(1),
+ };
+ u8 type = IWL_MEASURE_BASIC;
+ u8 buffer[32];
+ u8 channel;
+
+ if (count) {
+ char *p = buffer;
+ strncpy(buffer, buf, min(sizeof(buffer), count));
+ channel = simple_strtoul(p, NULL, 0);
+ if (channel)
+ params.channel = channel;
+
+ p = buffer;
+ while (*p && *p != ' ')
+ p++;
+ if (*p)
+ type = simple_strtoul(p + 1, NULL, 0);
+ }
+
+ IWL_DEBUG_INFO("Invoking measurement of type %d on "
+ "channel %d (for '%s')\n", type, params.channel, buf);
+ iwl3945_get_measurement(priv, ¶ms, type);
+
+ return count;
+}
+
+static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
+ show_measurement, store_measurement);
+#endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
+
+static ssize_t show_rate(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = dev_get_drvdata(d);
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+ if (priv->iw_mode == IEEE80211_IF_TYPE_STA)
+ i = priv->stations[IWL_AP_ID].current_rate.s.rate;
+ else
+ i = priv->stations[IWL_STA_ID].current_rate.s.rate;
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ i = iwl3945_rate_index_from_plcp(i);
+ if (i == -1)
+ return sprintf(buf, "0\n");
+
+ return sprintf(buf, "%d%s\n",
+ (iwl3945_rates[i].ieee >> 1),
+ (iwl3945_rates[i].ieee & 0x1) ? ".5" : "");
+}
+
+static DEVICE_ATTR(rate, S_IRUSR, show_rate, NULL);
+
+static ssize_t store_retry_rate(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl3945_priv *priv = dev_get_drvdata(d);
+
+ priv->retry_rate = simple_strtoul(buf, NULL, 0);
+ if (priv->retry_rate <= 0)
+ priv->retry_rate = 1;
+
+ return count;
+}
+
+static ssize_t show_retry_rate(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = dev_get_drvdata(d);
+ return sprintf(buf, "%d", priv->retry_rate);
+}
+
+static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
+ store_retry_rate);
+
+static ssize_t store_power_level(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl3945_priv *priv = dev_get_drvdata(d);
+ int rc;
+ int mode;
+
+ mode = simple_strtoul(buf, NULL, 0);
+ mutex_lock(&priv->mutex);
+
+ if (!iwl3945_is_ready(priv)) {
+ rc = -EAGAIN;
+ goto out;
+ }
+
+ if ((mode < 1) || (mode > IWL_POWER_LIMIT) || (mode == IWL_POWER_AC))
+ mode = IWL_POWER_AC;
+ else
+ mode |= IWL_POWER_ENABLED;
+
+ if (mode != priv->power_mode) {
+ rc = iwl3945_send_power_mode(priv, IWL_POWER_LEVEL(mode));
+ if (rc) {
+ IWL_DEBUG_MAC80211("failed setting power mode.\n");
+ goto out;
+ }
+ priv->power_mode = mode;
+ }
+
+ rc = count;
+
+ out:
+ mutex_unlock(&priv->mutex);
+ return rc;
+}
+
+#define MAX_WX_STRING 80
+
+/* Values are in microsecond */
+static const s32 timeout_duration[] = {
+ 350000,
+ 250000,
+ 75000,
+ 37000,
+ 25000,
+};
+static const s32 period_duration[] = {
+ 400000,
+ 700000,
+ 1000000,
+ 1000000,
+ 1000000
+};
+
+static ssize_t show_power_level(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = dev_get_drvdata(d);
+ int level = IWL_POWER_LEVEL(priv->power_mode);
+ char *p = buf;
+
+ p += sprintf(p, "%d ", level);
+ switch (level) {
+ case IWL_POWER_MODE_CAM:
+ case IWL_POWER_AC:
+ p += sprintf(p, "(AC)");
+ break;
+ case IWL_POWER_BATTERY:
+ p += sprintf(p, "(BATTERY)");
+ break;
+ default:
+ p += sprintf(p,
+ "(Timeout %dms, Period %dms)",
+ timeout_duration[level - 1] / 1000,
+ period_duration[level - 1] / 1000);
+ }
+
+ if (!(priv->power_mode & IWL_POWER_ENABLED))
+ p += sprintf(p, " OFF\n");
+ else
+ p += sprintf(p, " \n");
+
+ return (p - buf + 1);
+
+}
+
+static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
+ store_power_level);
+
+static ssize_t show_channels(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = dev_get_drvdata(d);
+ int len = 0, i;
+ struct ieee80211_channel *channels = NULL;
+ const struct ieee80211_hw_mode *hw_mode = NULL;
+ int count = 0;
+
+ if (!iwl3945_is_ready(priv))
+ return -EAGAIN;
+
+ hw_mode = iwl3945_get_hw_mode(priv, MODE_IEEE80211G);
+ if (!hw_mode)
+ hw_mode = iwl3945_get_hw_mode(priv, MODE_IEEE80211B);
+ if (hw_mode) {
+ channels = hw_mode->channels;
+ count = hw_mode->num_channels;
+ }
+
+ len +=
+ sprintf(&buf[len],
+ "Displaying %d channels in 2.4GHz band "
+ "(802.11bg):\n", count);
+
+ for (i = 0; i < count; i++)
+ len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
+ channels[i].chan,
+ channels[i].power_level,
+ channels[i].
+ flag & IEEE80211_CHAN_W_RADAR_DETECT ?
+ " (IEEE 802.11h required)" : "",
+ (!(channels[i].flag & IEEE80211_CHAN_W_IBSS)
+ || (channels[i].
+ flag &
+ IEEE80211_CHAN_W_RADAR_DETECT)) ? "" :
+ ", IBSS",
+ channels[i].
+ flag & IEEE80211_CHAN_W_ACTIVE_SCAN ?
+ "active/passive" : "passive only");
+
+ hw_mode = iwl3945_get_hw_mode(priv, MODE_IEEE80211A);
+ if (hw_mode) {
+ channels = hw_mode->channels;
+ count = hw_mode->num_channels;
+ } else {
+ channels = NULL;
+ count = 0;
+ }
+
+ len += sprintf(&buf[len], "Displaying %d channels in 5.2GHz band "
+ "(802.11a):\n", count);
+
+ for (i = 0; i < count; i++)
+ len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
+ channels[i].chan,
+ channels[i].power_level,
+ channels[i].
+ flag & IEEE80211_CHAN_W_RADAR_DETECT ?
+ " (IEEE 802.11h required)" : "",
+ (!(channels[i].flag & IEEE80211_CHAN_W_IBSS)
+ || (channels[i].
+ flag &
+ IEEE80211_CHAN_W_RADAR_DETECT)) ? "" :
+ ", IBSS",
+ channels[i].
+ flag & IEEE80211_CHAN_W_ACTIVE_SCAN ?
+ "active/passive" : "passive only");
+
+ return len;
+}
+
+static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
+
+static ssize_t show_statistics(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = dev_get_drvdata(d);
+ u32 size = sizeof(struct iwl3945_notif_statistics);
+ u32 len = 0, ofs = 0;
+ u8 *data = (u8 *) & priv->statistics;
+ int rc = 0;
+
+ if (!iwl3945_is_alive(priv))
+ return -EAGAIN;
+
+ mutex_lock(&priv->mutex);
+ rc = iwl3945_send_statistics_request(priv);
+ mutex_unlock(&priv->mutex);
+
+ if (rc) {
+ len = sprintf(buf,
+ "Error sending statistics request: 0x%08X\n", rc);
+ return len;
+ }
+
+ while (size && (PAGE_SIZE - len)) {
+ hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
+ PAGE_SIZE - len, 1);
+ len = strlen(buf);
+ if (PAGE_SIZE - len)
+ buf[len++] = '\n';
+
+ ofs += 16;
+ size -= min(size, 16U);
+ }
+
+ return len;
+}
+
+static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
+
+static ssize_t show_antenna(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = dev_get_drvdata(d);
+
+ if (!iwl3945_is_alive(priv))
+ return -EAGAIN;
+
+ return sprintf(buf, "%d\n", priv->antenna);
+}
+
+static ssize_t store_antenna(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int ant;
+ struct iwl3945_priv *priv = dev_get_drvdata(d);
+
+ if (count == 0)
+ return 0;
+
+ if (sscanf(buf, "%1i", &ant) != 1) {
+ IWL_DEBUG_INFO("not in hex or decimal form.\n");
+ return count;
+ }
+
+ if ((ant >= 0) && (ant <= 2)) {
+ IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant);
+ priv->antenna = (enum iwl3945_antenna)ant;
+ } else
+ IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant);
+
+
+ return count;
+}
+
+static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna);
+
+static ssize_t show_status(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)d->driver_data;
+ if (!iwl3945_is_alive(priv))
+ return -EAGAIN;
+ return sprintf(buf, "0x%08x\n", (int)priv->status);
+}
+
+static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
+
+static ssize_t dump_error_log(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ char *p = (char *)buf;
+
+ if (p[0] == '1')
+ iwl3945_dump_nic_error_log((struct iwl3945_priv *)d->driver_data);
+
+ return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
+
+static ssize_t dump_event_log(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ char *p = (char *)buf;
+
+ if (p[0] == '1')
+ iwl3945_dump_nic_event_log((struct iwl3945_priv *)d->driver_data);
+
+ return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
+
+/*****************************************************************************
+ *
+ * driver setup and teardown
+ *
+ *****************************************************************************/
+
+static void iwl3945_setup_deferred_work(struct iwl3945_priv *priv)
+{
+ priv->workqueue = create_workqueue(DRV_NAME);
+
+ init_waitqueue_head(&priv->wait_command_queue);
+
+ INIT_WORK(&priv->up, iwl3945_bg_up, priv);
+ INIT_WORK(&priv->restart, iwl3945_bg_restart, priv);
+ INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish, priv);
+ INIT_WORK(&priv->scan_completed, iwl3945_bg_scan_completed, priv);
+ INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan, priv);
+ INIT_WORK(&priv->abort_scan, iwl3945_bg_abort_scan, priv);
+ INIT_WORK(&priv->rf_kill, iwl3945_bg_rf_kill, priv);
+ INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update, priv);
+ INIT_WORK(&priv->post_associate, iwl3945_bg_post_associate, priv);
+ INIT_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start, priv);
+ INIT_WORK(&priv->alive_start, iwl3945_bg_alive_start, priv);
+ INIT_WORK(&priv->scan_check, iwl3945_bg_scan_check, priv);
+
+ iwl3945_hw_setup_deferred_work(priv);
+
+ tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
+ iwl3945_irq_tasklet, (unsigned long)priv);
+}
+
+static void iwl3945_cancel_deferred_work(struct iwl3945_priv *priv)
+{
+ iwl3945_hw_cancel_deferred_work(priv);
+
+#if 0 /* Not in RHEL5...(and probably wrong upstream...) */
+ cancel_delayed_work_sync(&priv->init_alive_start);
+#else
+ cancel_delayed_work(&priv->init_alive_start);
+ /* Make sure he has completed, since he can schedule other work */
+ flush_workqueue(priv->workqueue);
+#endif
+ cancel_delayed_work(&priv->scan_check);
+ cancel_delayed_work(&priv->alive_start);
+ cancel_delayed_work(&priv->post_associate);
+#if 0 /* Not in RHEL5... */
+ cancel_work_sync(&priv->beacon_update);
+#else
+ flush_workqueue(priv->workqueue);
+#endif
+}
+
+static struct attribute *iwl3945_sysfs_entries[] = {
+ &dev_attr_antenna.attr,
+ &dev_attr_channels.attr,
+ &dev_attr_dump_errors.attr,
+ &dev_attr_dump_events.attr,
+ &dev_attr_flags.attr,
+ &dev_attr_filter_flags.attr,
+#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
+ &dev_attr_measurement.attr,
+#endif
+ &dev_attr_power_level.attr,
+ &dev_attr_rate.attr,
+ &dev_attr_retry_rate.attr,
+ &dev_attr_rf_kill.attr,
+ &dev_attr_rs_window.attr,
+ &dev_attr_statistics.attr,
+ &dev_attr_status.attr,
+ &dev_attr_temperature.attr,
+ &dev_attr_tune.attr,
+ &dev_attr_tx_power.attr,
+
+ NULL
+};
+
+static struct attribute_group iwl3945_attribute_group = {
+ .name = NULL, /* put in device directory */
+ .attrs = iwl3945_sysfs_entries,
+};
+
+static struct ieee80211_ops iwl3945_hw_ops = {
+ .tx = iwl3945_mac_tx,
+ .start = iwl3945_mac_start,
+ .stop = iwl3945_mac_stop,
+ .add_interface = iwl3945_mac_add_interface,
+ .remove_interface = iwl3945_mac_remove_interface,
+ .config = iwl3945_mac_config,
+ .config_interface = iwl3945_mac_config_interface,
+ .configure_filter = iwl3945_configure_filter,
+ .set_key = iwl3945_mac_set_key,
+ .get_stats = iwl3945_mac_get_stats,
+ .get_tx_stats = iwl3945_mac_get_tx_stats,
+ .conf_tx = iwl3945_mac_conf_tx,
+ .get_tsf = iwl3945_mac_get_tsf,
+ .reset_tsf = iwl3945_mac_reset_tsf,
+ .beacon_update = iwl3945_mac_beacon_update,
+ .hw_scan = iwl3945_mac_hw_scan
+};
+
+static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ int err = 0;
+ u32 pci_id;
+ struct iwl3945_priv *priv;
+ struct ieee80211_hw *hw;
+ int i;
+
+ /* Disabling hardware scan means that mac80211 will perform scans
+ * "the hard way", rather than using device's scan. */
+ if (iwl3945_param_disable_hw_scan) {
+ IWL_DEBUG_INFO("Disabling hw_scan\n");
+ iwl3945_hw_ops.hw_scan = NULL;
+ }
+
+ if ((iwl3945_param_queues_num > IWL_MAX_NUM_QUEUES) ||
+ (iwl3945_param_queues_num < IWL_MIN_NUM_QUEUES)) {
+ IWL_ERROR("invalid queues_num, should be between %d and %d\n",
+ IWL_MIN_NUM_QUEUES, IWL_MAX_NUM_QUEUES);
+ err = -EINVAL;
+ goto out;
+ }
+
+ /* mac80211 allocates memory for this device instance, including
+ * space for this driver's private structure */
+ hw = ieee80211_alloc_hw(sizeof(struct iwl3945_priv), &iwl3945_hw_ops);
+ if (hw == NULL) {
+ IWL_ERROR("Can not allocate network device\n");
+ err = -ENOMEM;
+ goto out;
+ }
+ SET_IEEE80211_DEV(hw, &pdev->dev);
+
+ hw->rate_control_algorithm = "iwl-3945-rs";
+
+ IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
+ priv = hw->priv;
+ priv->hw = hw;
+
+ priv->pci_dev = pdev;
+
+ /* Select antenna (may be helpful if only one antenna is connected) */
+ priv->antenna = (enum iwl3945_antenna)iwl3945_param_antenna;
+#ifdef CONFIG_IWL3945_DEBUG
+ iwl3945_debug_level = iwl3945_param_debug;
+ atomic_set(&priv->restrict_refcnt, 0);
+#endif
+ priv->retry_rate = 1;
+
+ priv->ibss_beacon = NULL;
+
+ /* Tell mac80211 and its clients (e.g. Wireless Extensions)
+ * the range of signal quality values that we'll provide.
+ * Negative values for level/noise indicate that we'll provide dBm.
+ * For WE, at least, non-0 values here *enable* display of values
+ * in app (iwconfig). */
+ hw->max_rssi = -20; /* signal level, negative indicates dBm */
+ hw->max_noise = -20; /* noise level, negative indicates dBm */
+ hw->max_signal = 100; /* link quality indication (%) */
+
+ /* Tell mac80211 our Tx characteristics */
+ hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE;
+
+ /* 4 EDCA QOS priorities */
+ hw->queues = 4;
+
+ spin_lock_init(&priv->lock);
+ spin_lock_init(&priv->power_data.lock);
+ spin_lock_init(&priv->sta_lock);
+ spin_lock_init(&priv->hcmd_lock);
+
+ for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++)
+ INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
+
+ INIT_LIST_HEAD(&priv->free_frames);
+
+ mutex_init(&priv->mutex);
+ if (pci_enable_device(pdev)) {
+ err = -ENODEV;
+ goto out_ieee80211_free_hw;
+ }
+
+ pci_set_master(pdev);
+
+ /* Clear the driver's (not device's) station table */
+ iwl3945_clear_stations_table(priv);
+
+ priv->data_retry_limit = -1;
+ priv->ieee_channels = NULL;
+ priv->ieee_rates = NULL;
+ priv->phymode = -1;
+
+ err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (!err)
+ err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ if (err) {
+ printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
+ goto out_pci_disable_device;
+ }
+
+ pci_set_drvdata(pdev, priv);
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err)
+ goto out_pci_disable_device;
+
+ /* We disable the RETRY_TIMEOUT register (0x41) to keep
+ * PCI Tx retries from interfering with C3 CPU state */
+ pci_write_config_byte(pdev, 0x41, 0x00);
+
+ priv->hw_base = pci_iomap(pdev, 0, 0);
+ if (!priv->hw_base) {
+ err = -ENODEV;
+ goto out_pci_release_regions;
+ }
+
+ IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
+ (unsigned long long) pci_resource_len(pdev, 0));
+ IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
+
+ /* Initialize module parameter values here */
+
+ /* Disable radio (SW RF KILL) via parameter when loading driver */
+ if (iwl3945_param_disable) {
+ set_bit(STATUS_RF_KILL_SW, &priv->status);
+ IWL_DEBUG_INFO("Radio disabled.\n");
+ }
+
+ priv->iw_mode = IEEE80211_IF_TYPE_STA;
+
+ pci_id =
+ (priv->pci_dev->device << 16) | priv->pci_dev->subsystem_device;
+
+ switch (pci_id) {
+ case 0x42221005: /* 0x4222 0x8086 0x1005 is BG SKU */
+ case 0x42221034: /* 0x4222 0x8086 0x1034 is BG SKU */
+ case 0x42271014: /* 0x4227 0x8086 0x1014 is BG SKU */
+ case 0x42221044: /* 0x4222 0x8086 0x1044 is BG SKU */
+ priv->is_abg = 0;
+ break;
+
+ /*
+ * Rest are assumed ABG SKU -- if this is not the
+ * case then the card will get the wrong 'Detected'
+ * line in the kernel log however the code that
+ * initializes the GEO table will detect no A-band
+ * channels and remove the is_abg mask.
+ */
+ default:
+ priv->is_abg = 1;
+ break;
+ }
+
+ printk(KERN_INFO DRV_NAME
+ ": Detected Intel PRO/Wireless 3945%sBG Network Connection\n",
+ priv->is_abg ? "A" : "");
+
+ /* Device-specific setup */
+ if (iwl3945_hw_set_hw_setting(priv)) {
+ IWL_ERROR("failed to set hw settings\n");
+ mutex_unlock(&priv->mutex);
+ goto out_iounmap;
+ }
+
+#ifdef CONFIG_IWL3945_QOS
+ if (iwl3945_param_qos_enable)
+ priv->qos_data.qos_enable = 1;
+
+ iwl3945_reset_qos(priv);
+
+ priv->qos_data.qos_active = 0;
+ priv->qos_data.qos_cap.val = 0;
+#endif /* CONFIG_IWL3945_QOS */
+
+ iwl3945_set_rxon_channel(priv, MODE_IEEE80211G, 6);
+ iwl3945_setup_deferred_work(priv);
+ iwl3945_setup_rx_handlers(priv);
+
+ priv->rates_mask = IWL_RATES_MASK;
+ /* If power management is turned on, default to AC mode */
+ priv->power_mode = IWL_POWER_AC;
+ priv->user_txpower_limit = IWL_DEFAULT_TX_POWER;
+
+ iwl3945_disable_interrupts(priv);
+
+ pci_enable_msi(pdev);
+
+ err = request_irq(pdev->irq, iwl3945_isr, IRQF_SHARED, DRV_NAME, priv);
+ if (err) {
+ IWL_ERROR("Error allocating IRQ %d\n", pdev->irq);
+ goto out_disable_msi;
+ }
+
+ mutex_lock(&priv->mutex);
+
+ err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group);
+ if (err) {
+ IWL_ERROR("failed to create sysfs device attributes\n");
+ mutex_unlock(&priv->mutex);
+ goto out_release_irq;
+ }
+
+ /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
+ * ucode filename and max sizes are card-specific. */
+ err = iwl3945_read_ucode(priv);
+ if (err) {
+ IWL_ERROR("Could not read microcode: %d\n", err);
+ mutex_unlock(&priv->mutex);
+ goto out_pci_alloc;
+ }
+
+ mutex_unlock(&priv->mutex);
+
+ IWL_DEBUG_INFO("Queueing UP work.\n");
+
+ queue_work(priv->workqueue, &priv->up);
+
+ return 0;
+
+ out_pci_alloc:
+ iwl3945_dealloc_ucode_pci(priv);
+
+ sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
+
+ out_release_irq:
+ free_irq(pdev->irq, priv);
+
+ out_disable_msi:
+ pci_disable_msi(pdev);
+ destroy_workqueue(priv->workqueue);
+ priv->workqueue = NULL;
+ iwl3945_unset_hw_setting(priv);
+
+ out_iounmap:
+ pci_iounmap(pdev, priv->hw_base);
+ out_pci_release_regions:
+ pci_release_regions(pdev);
+ out_pci_disable_device:
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ out_ieee80211_free_hw:
+ ieee80211_free_hw(priv->hw);
+ out:
+ return err;
+}
+
+static void iwl3945_pci_remove(struct pci_dev *pdev)
+{
+ struct iwl3945_priv *priv = pci_get_drvdata(pdev);
+ struct list_head *p, *q;
+ int i;
+
+ if (!priv)
+ return;
+
+ IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
+
+ mutex_lock(&priv->mutex);
+ set_bit(STATUS_EXIT_PENDING, &priv->status);
+ __iwl3945_down(priv);
+ mutex_unlock(&priv->mutex);
+
+ /* Free MAC hash list for ADHOC */
+ for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) {
+ list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
+ list_del(p);
+ kfree(list_entry(p, struct iwl3945_ibss_seq, list));
+ }
+ }
+
+ sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
+
+ iwl3945_dealloc_ucode_pci(priv);
+
+ if (priv->rxq.bd)
+ iwl3945_rx_queue_free(priv, &priv->rxq);
+ iwl3945_hw_txq_ctx_free(priv);
+
+ iwl3945_unset_hw_setting(priv);
+ iwl3945_clear_stations_table(priv);
+
+ if (priv->mac80211_registered) {
+ ieee80211_unregister_hw(priv->hw);
+ iwl3945_rate_control_unregister(priv->hw);
+ }
+
+ /*netif_stop_queue(dev); */
+ flush_workqueue(priv->workqueue);
+
+ /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
+ * priv->workqueue... so we can't take down the workqueue
+ * until now... */
+ destroy_workqueue(priv->workqueue);
+ priv->workqueue = NULL;
+
+ free_irq(pdev->irq, priv);
+ pci_disable_msi(pdev);
+ pci_iounmap(pdev, priv->hw_base);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+
+ kfree(priv->channel_info);
+
+ kfree(priv->ieee_channels);
+ kfree(priv->ieee_rates);
+
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ ieee80211_free_hw(priv->hw);
+}
+
+#ifdef CONFIG_PM
+
+static int iwl3945_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct iwl3945_priv *priv = pci_get_drvdata(pdev);
+
+ mutex_lock(&priv->mutex);
+
+ set_bit(STATUS_IN_SUSPEND, &priv->status);
+
+ /* Take down the device; powers it off, etc. */
+ __iwl3945_down(priv);
+
+ if (priv->mac80211_registered)
+ ieee80211_stop_queues(priv->hw);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, PCI_D3hot);
+
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+
+static void iwl3945_resume(struct iwl3945_priv *priv)
+{
+ unsigned long flags;
+
+ /* The following it a temporary work around due to the
+ * suspend / resume not fully initializing the NIC correctly.
+ * Without all of the following, resume will not attempt to take
+ * down the NIC (it shouldn't really need to) and will just try
+ * and bring the NIC back up. However that fails during the
+ * ucode verification process. This then causes iwl3945_down to be
+ * called *after* iwl3945_hw_nic_init() has succeeded -- which
+ * then lets the next init sequence succeed. So, we've
+ * replicated all of that NIC init code here... */
+
+ iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF);
+
+ iwl3945_hw_nic_init(priv);
+
+ iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+ iwl3945_write32(priv, CSR_INT, 0xFFFFFFFF);
+ iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl3945_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+ /* tell the device to stop sending interrupts */
+ iwl3945_disable_interrupts(priv);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl3945_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+
+ if (!iwl3945_grab_nic_access(priv)) {
+ iwl3945_write_prph(priv, APMG_CLK_DIS_REG,
+ APMG_CLK_VAL_DMA_CLK_RQT);
+ iwl3945_release_nic_access(priv);
+ }
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ udelay(5);
+
+ iwl3945_hw_nic_reset(priv);
+
+ /* Bring the device back up */
+ clear_bit(STATUS_IN_SUSPEND, &priv->status);
+ queue_work(priv->workqueue, &priv->up);
+}
+
+static int iwl3945_pci_resume(struct pci_dev *pdev)
+{
+ struct iwl3945_priv *priv = pci_get_drvdata(pdev);
+ int err;
+
+ printk(KERN_INFO "Coming out of suspend...\n");
+
+ mutex_lock(&priv->mutex);
+
+ pci_set_power_state(pdev, PCI_D0);
+ err = pci_enable_device(pdev);
+ pci_restore_state(pdev);
+
+ /*
+ * Suspend/Resume resets the PCI configuration space, so we have to
+ * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
+ * from interfering with C3 CPU state. pci_restore_state won't help
+ * here since it only restores the first 64 bytes pci config header.
+ */
+ pci_write_config_byte(pdev, 0x41, 0x00);
+
+ iwl3945_resume(priv);
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+
+#endif /* CONFIG_PM */
+
+/*****************************************************************************
+ *
+ * driver and module entry point
+ *
+ *****************************************************************************/
+
+static struct pci_driver iwl3945_driver = {
+ .name = DRV_NAME,
+ .id_table = iwl3945_hw_card_ids,
+ .probe = iwl3945_pci_probe,
+ .remove = __devexit_p(iwl3945_pci_remove),
+#ifdef CONFIG_PM
+ .suspend = iwl3945_pci_suspend,
+ .resume = iwl3945_pci_resume,
+#endif
+};
+
+static int __init iwl3945_init(void)
+{
+
+ int ret;
+ printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
+ printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
+ ret = pci_register_driver(&iwl3945_driver);
+ if (ret) {
+ IWL_ERROR("Unable to initialize PCI module\n");
+ return ret;
+ }
+#ifdef CONFIG_IWL3945_DEBUG
+ ret = driver_create_file(&iwl3945_driver.driver, &driver_attr_debug_level);
+ if (ret) {
+ IWL_ERROR("Unable to create driver sysfs file\n");
+ pci_unregister_driver(&iwl3945_driver);
+ return ret;
+ }
+#endif
+
+ return ret;
+}
+
+static void __exit iwl3945_exit(void)
+{
+#ifdef CONFIG_IWL3945_DEBUG
+ driver_remove_file(&iwl3945_driver.driver, &driver_attr_debug_level);
+#endif
+ pci_unregister_driver(&iwl3945_driver);
+}
+
+module_param_named(antenna, iwl3945_param_antenna, int, 0444);
+MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
+module_param_named(disable, iwl3945_param_disable, int, 0444);
+MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
+module_param_named(hwcrypto, iwl3945_param_hwcrypto, int, 0444);
+MODULE_PARM_DESC(hwcrypto,
+ "using hardware crypto engine (default 0 [software])\n");
+module_param_named(debug, iwl3945_param_debug, int, 0444);
+MODULE_PARM_DESC(debug, "debug output mask");
+module_param_named(disable_hw_scan, iwl3945_param_disable_hw_scan, int, 0444);
+MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
+
+module_param_named(queues_num, iwl3945_param_queues_num, int, 0444);
+MODULE_PARM_DESC(queues_num, "number of hw queues.");
+
+/* QoS */
+module_param_named(qos_enable, iwl3945_param_qos_enable, int, 0444);
+MODULE_PARM_DESC(qos_enable, "enable all QoS functionality");
+
+module_exit(iwl3945_exit);
+module_init(iwl3945_init);
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
new file mode 100644
index 0000000..0466f61
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -0,0 +1,9538 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2007 Intel Corporation. All rights reserved.
+ *
+ * Portions of this file are derived from the ipw3945 project, as well
+ * as portions of the ieee80211 subsystem header files.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * James P. Ketrenos <ipw2100-admin@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/wireless.h>
+#include <linux/firmware.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+
+#include <net/ieee80211_radiotap.h>
+#include <net/mac80211.h>
+
+#include <asm/div64.h>
+
+#include "iwl-4965.h"
+#include "iwl-helpers.h"
+
+#ifdef CONFIG_IWL4965_DEBUG
+u32 iwl4965_debug_level;
+#endif
+
+static int iwl4965_tx_queue_update_write_ptr(struct iwl4965_priv *priv,
+ struct iwl4965_tx_queue *txq);
+
+/******************************************************************************
+ *
+ * module boiler plate
+ *
+ ******************************************************************************/
+
+/* module parameters */
+static int iwl4965_param_disable_hw_scan; /* def: 0 = use 4965's h/w scan */
+static int iwl4965_param_debug; /* def: 0 = minimal debug log messages */
+static int iwl4965_param_disable; /* def: enable radio */
+static int iwl4965_param_antenna; /* def: 0 = both antennas (use diversity) */
+int iwl4965_param_hwcrypto; /* def: using software encryption */
+static int iwl4965_param_qos_enable = 1; /* def: 1 = use quality of service */
+int iwl4965_param_queues_num = IWL_MAX_NUM_QUEUES; /* def: 16 Tx queues */
+int iwl4965_param_amsdu_size_8K; /* def: enable 8K amsdu size */
+
+/*
+ * module name, copyright, version, etc.
+ * NOTE: DRV_NAME is defined in iwlwifi.h for use by iwl-debug.h and printk
+ */
+
+#define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link 4965AGN driver for Linux"
+
+#ifdef CONFIG_IWL4965_DEBUG
+#define VD "d"
+#else
+#define VD
+#endif
+
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+#define VS "s"
+#else
+#define VS
+#endif
+
+#define IWLWIFI_VERSION "1.2.22k" VD VS
+#define DRV_COPYRIGHT "Copyright(c) 2003-2007 Intel Corporation"
+#define DRV_VERSION IWLWIFI_VERSION
+
+/* Change firmware file name, using "-" and incrementing number,
+ * *only* when uCode interface or architecture changes so that it
+ * is not compatible with earlier drivers.
+ * This number will also appear in << 8 position of 1st dword of uCode file */
+#define IWL4965_UCODE_API "-1"
+
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR(DRV_COPYRIGHT);
+MODULE_LICENSE("GPL");
+
+__le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr)
+{
+ u16 fc = le16_to_cpu(hdr->frame_control);
+ int hdr_len = ieee80211_get_hdrlen(fc);
+
+ if ((fc & 0x00cc) == (IEEE80211_STYPE_QOS_DATA | IEEE80211_FTYPE_DATA))
+ return (__le16 *) ((u8 *) hdr + hdr_len - QOS_CONTROL_LEN);
+ return NULL;
+}
+
+static const struct ieee80211_hw_mode *iwl4965_get_hw_mode(
+ struct iwl4965_priv *priv, int mode)
+{
+ int i;
+
+ for (i = 0; i < 3; i++)
+ if (priv->modes[i].mode == mode)
+ return &priv->modes[i];
+
+ return NULL;
+}
+
+static int iwl4965_is_empty_essid(const char *essid, int essid_len)
+{
+ /* Single white space is for Linksys APs */
+ if (essid_len == 1 && essid[0] == ' ')
+ return 1;
+
+ /* Otherwise, if the entire essid is 0, we assume it is hidden */
+ while (essid_len) {
+ essid_len--;
+ if (essid[essid_len] != '\0')
+ return 0;
+ }
+
+ return 1;
+}
+
+static const char *iwl4965_escape_essid(const char *essid, u8 essid_len)
+{
+ static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
+ const char *s = essid;
+ char *d = escaped;
+
+ if (iwl4965_is_empty_essid(essid, essid_len)) {
+ memcpy(escaped, "<hidden>", sizeof("<hidden>"));
+ return escaped;
+ }
+
+ essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE);
+ while (essid_len--) {
+ if (*s == '\0') {
+ *d++ = '\\';
+ *d++ = '0';
+ s++;
+ } else
+ *d++ = *s++;
+ }
+ *d = '\0';
+ return escaped;
+}
+
+static void iwl4965_print_hex_dump(int level, void *p, u32 len)
+{
+#ifdef CONFIG_IWL4965_DEBUG
+ if (!(iwl4965_debug_level & level))
+ return;
+
+ print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
+ p, len, 1);
+#endif
+}
+
+/*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
+ * DMA services
+ *
+ * Theory of operation
+ *
+ * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
+ * of buffer descriptors, each of which points to one or more data buffers for
+ * the device to read from or fill. Driver and device exchange status of each
+ * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
+ * entries in each circular buffer, to protect against confusing empty and full
+ * queue states.
+ *
+ * The device reads or writes the data in the queues via the device's several
+ * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
+ *
+ * For Tx queue, there are low mark and high mark limits. If, after queuing
+ * the packet for Tx, free space become < low mark, Tx queue stopped. When
+ * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
+ * Tx queue resumed.
+ *
+ * The 4965 operates with up to 17 queues: One receive queue, one transmit
+ * queue (#4) for sending commands to the device firmware, and 15 other
+ * Tx queues that may be mapped to prioritized Tx DMA/FIFO channels.
+ *
+ * See more detailed info in iwl-4965-hw.h.
+ ***************************************************/
+
+static int iwl4965_queue_space(const struct iwl4965_queue *q)
+{
+ int s = q->read_ptr - q->write_ptr;
+
+ if (q->read_ptr > q->write_ptr)
+ s -= q->n_bd;
+
+ if (s <= 0)
+ s += q->n_window;
+ /* keep some reserve to not confuse empty and full situations */
+ s -= 2;
+ if (s < 0)
+ s = 0;
+ return s;
+}
+
+/**
+ * iwl4965_queue_inc_wrap - increment queue index, wrap back to beginning
+ * @index -- current index
+ * @n_bd -- total number of entries in queue (must be power of 2)
+ */
+static inline int iwl4965_queue_inc_wrap(int index, int n_bd)
+{
+ return ++index & (n_bd - 1);
+}
+
+/**
+ * iwl4965_queue_dec_wrap - decrement queue index, wrap back to end
+ * @index -- current index
+ * @n_bd -- total number of entries in queue (must be power of 2)
+ */
+static inline int iwl4965_queue_dec_wrap(int index, int n_bd)
+{
+ return --index & (n_bd - 1);
+}
+
+static inline int x2_queue_used(const struct iwl4965_queue *q, int i)
+{
+ return q->write_ptr > q->read_ptr ?
+ (i >= q->read_ptr && i < q->write_ptr) :
+ !(i < q->read_ptr && i >= q->write_ptr);
+}
+
+static inline u8 get_cmd_index(struct iwl4965_queue *q, u32 index, int is_huge)
+{
+ /* This is for scan command, the big buffer at end of command array */
+ if (is_huge)
+ return q->n_window; /* must be power of 2 */
+
+ /* Otherwise, use normal size buffers */
+ return index & (q->n_window - 1);
+}
+
+/**
+ * iwl4965_queue_init - Initialize queue's high/low-water and read/write indexes
+ */
+static int iwl4965_queue_init(struct iwl4965_priv *priv, struct iwl4965_queue *q,
+ int count, int slots_num, u32 id)
+{
+ q->n_bd = count;
+ q->n_window = slots_num;
+ q->id = id;
+
+ /* count must be power-of-two size, otherwise iwl4965_queue_inc_wrap
+ * and iwl4965_queue_dec_wrap are broken. */
+ BUG_ON(!is_power_of_2(count));
+
+ /* slots_num must be power-of-two size, otherwise
+ * get_cmd_index is broken. */
+ BUG_ON(!is_power_of_2(slots_num));
+
+ q->low_mark = q->n_window / 4;
+ if (q->low_mark < 4)
+ q->low_mark = 4;
+
+ q->high_mark = q->n_window / 8;
+ if (q->high_mark < 2)
+ q->high_mark = 2;
+
+ q->write_ptr = q->read_ptr = 0;
+
+ return 0;
+}
+
+/**
+ * iwl4965_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
+ */
+static int iwl4965_tx_queue_alloc(struct iwl4965_priv *priv,
+ struct iwl4965_tx_queue *txq, u32 id)
+{
+ struct pci_dev *dev = priv->pci_dev;
+
+ /* Driver private data, only for Tx (not command) queues,
+ * not shared with device. */
+ if (id != IWL_CMD_QUEUE_NUM) {
+ txq->txb = kmalloc(sizeof(txq->txb[0]) *
+ TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
+ if (!txq->txb) {
+ IWL_ERROR("kmalloc for auxiliary BD "
+ "structures failed\n");
+ goto error;
+ }
+ } else
+ txq->txb = NULL;
+
+ /* Circular buffer of transmit frame descriptors (TFDs),
+ * shared with device */
+ txq->bd = pci_alloc_consistent(dev,
+ sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX,
+ &txq->q.dma_addr);
+
+ if (!txq->bd) {
+ IWL_ERROR("pci_alloc_consistent(%zd) failed\n",
+ sizeof(txq->bd[0]) * TFD_QUEUE_SIZE_MAX);
+ goto error;
+ }
+ txq->q.id = id;
+
+ return 0;
+
+ error:
+ if (txq->txb) {
+ kfree(txq->txb);
+ txq->txb = NULL;
+ }
+
+ return -ENOMEM;
+}
+
+/**
+ * iwl4965_tx_queue_init - Allocate and initialize one tx/cmd queue
+ */
+int iwl4965_tx_queue_init(struct iwl4965_priv *priv,
+ struct iwl4965_tx_queue *txq, int slots_num, u32 txq_id)
+{
+ struct pci_dev *dev = priv->pci_dev;
+ int len;
+ int rc = 0;
+
+ /*
+ * Alloc buffer array for commands (Tx or other types of commands).
+ * For the command queue (#4), allocate command space + one big
+ * command for scan, since scan command is very huge; the system will
+ * not have two scans at the same time, so only one is needed.
+ * For normal Tx queues (all other queues), no super-size command
+ * space is needed.
+ */
+ len = sizeof(struct iwl4965_cmd) * slots_num;
+ if (txq_id == IWL_CMD_QUEUE_NUM)
+ len += IWL_MAX_SCAN_SIZE;
+ txq->cmd = pci_alloc_consistent(dev, len, &txq->dma_addr_cmd);
+ if (!txq->cmd)
+ return -ENOMEM;
+
+ /* Alloc driver data array and TFD circular buffer */
+ rc = iwl4965_tx_queue_alloc(priv, txq, txq_id);
+ if (rc) {
+ pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
+
+ return -ENOMEM;
+ }
+ txq->need_update = 0;
+
+ /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
+ * iwl4965_queue_inc_wrap and iwl4965_queue_dec_wrap are broken. */
+ BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
+
+ /* Initialize queue's high/low-water marks, and head/tail indexes */
+ iwl4965_queue_init(priv, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
+
+ /* Tell device where to find queue */
+ iwl4965_hw_tx_queue_init(priv, txq);
+
+ return 0;
+}
+
+/**
+ * iwl4965_tx_queue_free - Deallocate DMA queue.
+ * @txq: Transmit queue to deallocate.
+ *
+ * Empty queue by removing and destroying all BD's.
+ * Free all buffers.
+ * 0-fill, but do not free "txq" descriptor structure.
+ */
+void iwl4965_tx_queue_free(struct iwl4965_priv *priv, struct iwl4965_tx_queue *txq)
+{
+ struct iwl4965_queue *q = &txq->q;
+ struct pci_dev *dev = priv->pci_dev;
+ int len;
+
+ if (q->n_bd == 0)
+ return;
+
+ /* first, empty all BD's */
+ for (; q->write_ptr != q->read_ptr;
+ q->read_ptr = iwl4965_queue_inc_wrap(q->read_ptr, q->n_bd))
+ iwl4965_hw_txq_free_tfd(priv, txq);
+
+ len = sizeof(struct iwl4965_cmd) * q->n_window;
+ if (q->id == IWL_CMD_QUEUE_NUM)
+ len += IWL_MAX_SCAN_SIZE;
+
+ /* De-alloc array of command/tx buffers */
+ pci_free_consistent(dev, len, txq->cmd, txq->dma_addr_cmd);
+
+ /* De-alloc circular buffer of TFDs */
+ if (txq->q.n_bd)
+ pci_free_consistent(dev, sizeof(struct iwl4965_tfd_frame) *
+ txq->q.n_bd, txq->bd, txq->q.dma_addr);
+
+ /* De-alloc array of per-TFD driver data */
+ if (txq->txb) {
+ kfree(txq->txb);
+ txq->txb = NULL;
+ }
+
+ /* 0-fill queue descriptor structure */
+ memset(txq, 0, sizeof(*txq));
+}
+
+const u8 iwl4965_broadcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+
+/*************** STATION TABLE MANAGEMENT ****
+ * mac80211 should be examined to determine if sta_info is duplicating
+ * the functionality provided here
+ */
+
+/**************************************************************/
+
+#if 0 /* temporary disable till we add real remove station */
+/**
+ * iwl4965_remove_station - Remove driver's knowledge of station.
+ *
+ * NOTE: This does not remove station from device's station table.
+ */
+static u8 iwl4965_remove_station(struct iwl4965_priv *priv, const u8 *addr, int is_ap)
+{
+ int index = IWL_INVALID_STATION;
+ int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+
+ if (is_ap)
+ index = IWL_AP_ID;
+ else if (is_broadcast_ether_addr(addr))
+ index = priv->hw_setting.bcast_sta_id;
+ else
+ for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++)
+ if (priv->stations[i].used &&
+ !compare_ether_addr(priv->stations[i].sta.sta.addr,
+ addr)) {
+ index = i;
+ break;
+ }
+
+ if (unlikely(index == IWL_INVALID_STATION))
+ goto out;
+
+ if (priv->stations[index].used) {
+ priv->stations[index].used = 0;
+ priv->num_stations--;
+ }
+
+ BUG_ON(priv->num_stations < 0);
+
+out:
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+ return 0;
+}
+#endif
+
+/**
+ * iwl4965_clear_stations_table - Clear the driver's station table
+ *
+ * NOTE: This does not clear or otherwise alter the device's station table.
+ */
+static void iwl4965_clear_stations_table(struct iwl4965_priv *priv)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+
+ priv->num_stations = 0;
+ memset(priv->stations, 0, sizeof(priv->stations));
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+}
+
+/**
+ * iwl4965_add_station_flags - Add station to tables in driver and device
+ */
+u8 iwl4965_add_station_flags(struct iwl4965_priv *priv, const u8 *addr,
+ int is_ap, u8 flags, void *ht_data)
+{
+ int i;
+ int index = IWL_INVALID_STATION;
+ struct iwl4965_station_entry *station;
+ unsigned long flags_spin;
+ DECLARE_MAC_BUF(mac);
+
+ spin_lock_irqsave(&priv->sta_lock, flags_spin);
+ if (is_ap)
+ index = IWL_AP_ID;
+ else if (is_broadcast_ether_addr(addr))
+ index = priv->hw_setting.bcast_sta_id;
+ else
+ for (i = IWL_STA_ID; i < priv->hw_setting.max_stations; i++) {
+ if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
+ addr)) {
+ index = i;
+ break;
+ }
+
+ if (!priv->stations[i].used &&
+ index == IWL_INVALID_STATION)
+ index = i;
+ }
+
+
+ /* These two conditions have the same outcome, but keep them separate
+ since they have different meanings */
+ if (unlikely(index == IWL_INVALID_STATION)) {
+ spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ return index;
+ }
+
+ if (priv->stations[index].used &&
+ !compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) {
+ spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ return index;
+ }
+
+
+ IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index, print_mac(mac, addr));
+ station = &priv->stations[index];
+ station->used = 1;
+ priv->num_stations++;
+
+ /* Set up the REPLY_ADD_STA command to send to device */
+ memset(&station->sta, 0, sizeof(struct iwl4965_addsta_cmd));
+ memcpy(station->sta.sta.addr, addr, ETH_ALEN);
+ station->sta.mode = 0;
+ station->sta.sta.sta_id = index;
+ station->sta.station_flags = 0;
+
+#ifdef CONFIG_IWL4965_HT
+ /* BCAST station and IBSS stations do not work in HT mode */
+ if (index != priv->hw_setting.bcast_sta_id &&
+ priv->iw_mode != IEEE80211_IF_TYPE_IBSS)
+ iwl4965_set_ht_add_station(priv, index,
+ (struct ieee80211_ht_info *) ht_data);
+#endif /*CONFIG_IWL4965_HT*/
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+
+ /* Add station to device's station table */
+ iwl4965_send_add_station(priv, &station->sta, flags);
+ return index;
+
+}
+
+/*************** DRIVER STATUS FUNCTIONS *****/
+
+static inline int iwl4965_is_ready(struct iwl4965_priv *priv)
+{
+ /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
+ * set but EXIT_PENDING is not */
+ return test_bit(STATUS_READY, &priv->status) &&
+ test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
+ !test_bit(STATUS_EXIT_PENDING, &priv->status);
+}
+
+static inline int iwl4965_is_alive(struct iwl4965_priv *priv)
+{
+ return test_bit(STATUS_ALIVE, &priv->status);
+}
+
+static inline int iwl4965_is_init(struct iwl4965_priv *priv)
+{
+ return test_bit(STATUS_INIT, &priv->status);
+}
+
+static inline int iwl4965_is_rfkill(struct iwl4965_priv *priv)
+{
+ return test_bit(STATUS_RF_KILL_HW, &priv->status) ||
+ test_bit(STATUS_RF_KILL_SW, &priv->status);
+}
+
+static inline int iwl4965_is_ready_rf(struct iwl4965_priv *priv)
+{
+
+ if (iwl4965_is_rfkill(priv))
+ return 0;
+
+ return iwl4965_is_ready(priv);
+}
+
+/*************** HOST COMMAND QUEUE FUNCTIONS *****/
+
+#define IWL_CMD(x) case x : return #x
+
+static const char *get_cmd_string(u8 cmd)
+{
+ switch (cmd) {
+ IWL_CMD(REPLY_ALIVE);
+ IWL_CMD(REPLY_ERROR);
+ IWL_CMD(REPLY_RXON);
+ IWL_CMD(REPLY_RXON_ASSOC);
+ IWL_CMD(REPLY_QOS_PARAM);
+ IWL_CMD(REPLY_RXON_TIMING);
+ IWL_CMD(REPLY_ADD_STA);
+ IWL_CMD(REPLY_REMOVE_STA);
+ IWL_CMD(REPLY_REMOVE_ALL_STA);
+ IWL_CMD(REPLY_TX);
+ IWL_CMD(REPLY_RATE_SCALE);
+ IWL_CMD(REPLY_LEDS_CMD);
+ IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
+ IWL_CMD(RADAR_NOTIFICATION);
+ IWL_CMD(REPLY_QUIET_CMD);
+ IWL_CMD(REPLY_CHANNEL_SWITCH);
+ IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
+ IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD);
+ IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION);
+ IWL_CMD(POWER_TABLE_CMD);
+ IWL_CMD(PM_SLEEP_NOTIFICATION);
+ IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC);
+ IWL_CMD(REPLY_SCAN_CMD);
+ IWL_CMD(REPLY_SCAN_ABORT_CMD);
+ IWL_CMD(SCAN_START_NOTIFICATION);
+ IWL_CMD(SCAN_RESULTS_NOTIFICATION);
+ IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
+ IWL_CMD(BEACON_NOTIFICATION);
+ IWL_CMD(REPLY_TX_BEACON);
+ IWL_CMD(WHO_IS_AWAKE_NOTIFICATION);
+ IWL_CMD(QUIET_NOTIFICATION);
+ IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
+ IWL_CMD(MEASURE_ABORT_NOTIFICATION);
+ IWL_CMD(REPLY_BT_CONFIG);
+ IWL_CMD(REPLY_STATISTICS_CMD);
+ IWL_CMD(STATISTICS_NOTIFICATION);
+ IWL_CMD(REPLY_CARD_STATE_CMD);
+ IWL_CMD(CARD_STATE_NOTIFICATION);
+ IWL_CMD(MISSED_BEACONS_NOTIFICATION);
+ IWL_CMD(REPLY_CT_KILL_CONFIG_CMD);
+ IWL_CMD(SENSITIVITY_CMD);
+ IWL_CMD(REPLY_PHY_CALIBRATION_CMD);
+ IWL_CMD(REPLY_RX_PHY_CMD);
+ IWL_CMD(REPLY_RX_MPDU_CMD);
+ IWL_CMD(REPLY_4965_RX);
+ IWL_CMD(REPLY_COMPRESSED_BA);
+ default:
+ return "UNKNOWN";
+
+ }
+}
+
+#define HOST_COMPLETE_TIMEOUT (HZ / 2)
+
+/**
+ * iwl4965_enqueue_hcmd - enqueue a uCode command
+ * @priv: device private data point
+ * @cmd: a point to the ucode command structure
+ *
+ * The function returns < 0 values to indicate the operation is
+ * failed. On success, it turns the index (> 0) of command in the
+ * command queue.
+ */
+static int iwl4965_enqueue_hcmd(struct iwl4965_priv *priv, struct iwl4965_host_cmd *cmd)
+{
+ struct iwl4965_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
+ struct iwl4965_queue *q = &txq->q;
+ struct iwl4965_tfd_frame *tfd;
+ u32 *control_flags;
+ struct iwl4965_cmd *out_cmd;
+ u32 idx;
+ u16 fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
+ dma_addr_t phys_addr;
+ int ret;
+ unsigned long flags;
+
+ /* If any of the command structures end up being larger than
+ * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
+ * we will need to increase the size of the TFD entries */
+ BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
+ !(cmd->meta.flags & CMD_SIZE_HUGE));
+
+ if (iwl4965_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
+ IWL_ERROR("No space for Tx\n");
+ return -ENOSPC;
+ }
+
+ spin_lock_irqsave(&priv->hcmd_lock, flags);
+
+ tfd = &txq->bd[q->write_ptr];
+ memset(tfd, 0, sizeof(*tfd));
+
+ control_flags = (u32 *) tfd;
+
+ idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE);
+ out_cmd = &txq->cmd[idx];
+
+ out_cmd->hdr.cmd = cmd->id;
+ memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta));
+ memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
+
+ /* At this point, the out_cmd now has all of the incoming cmd
+ * information */
+
+ out_cmd->hdr.flags = 0;
+ out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
+ INDEX_TO_SEQ(q->write_ptr));
+ if (out_cmd->meta.flags & CMD_SIZE_HUGE)
+ out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME);
+
+ phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx +
+ offsetof(struct iwl4965_cmd, hdr);
+ iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size);
+
+ IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
+ "%d bytes at %d[%d]:%d\n",
+ get_cmd_string(out_cmd->hdr.cmd),
+ out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence),
+ fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM);
+
+ txq->need_update = 1;
+
+ /* Set up entry in queue's byte count circular buffer */
+ ret = iwl4965_tx_queue_update_wr_ptr(priv, txq, 0);
+
+ /* Increment and update queue's write index */
+ q->write_ptr = iwl4965_queue_inc_wrap(q->write_ptr, q->n_bd);
+ iwl4965_tx_queue_update_write_ptr(priv, txq);
+
+ spin_unlock_irqrestore(&priv->hcmd_lock, flags);
+ return ret ? ret : idx;
+}
+
+static int iwl4965_send_cmd_async(struct iwl4965_priv *priv, struct iwl4965_host_cmd *cmd)
+{
+ int ret;
+
+ BUG_ON(!(cmd->meta.flags & CMD_ASYNC));
+
+ /* An asynchronous command can not expect an SKB to be set. */
+ BUG_ON(cmd->meta.flags & CMD_WANT_SKB);
+
+ /* An asynchronous command MUST have a callback. */
+ BUG_ON(!cmd->meta.u.callback);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return -EBUSY;
+
+ ret = iwl4965_enqueue_hcmd(priv, cmd);
+ if (ret < 0) {
+ IWL_ERROR("Error sending %s: iwl4965_enqueue_hcmd failed: %d\n",
+ get_cmd_string(cmd->id), ret);
+ return ret;
+ }
+ return 0;
+}
+
+static int iwl4965_send_cmd_sync(struct iwl4965_priv *priv, struct iwl4965_host_cmd *cmd)
+{
+ int cmd_idx;
+ int ret;
+ static atomic_t entry = ATOMIC_INIT(0); /* reentrance protection */
+
+ BUG_ON(cmd->meta.flags & CMD_ASYNC);
+
+ /* A synchronous command can not have a callback set. */
+ BUG_ON(cmd->meta.u.callback != NULL);
+
+ if (atomic_xchg(&entry, 1)) {
+ IWL_ERROR("Error sending %s: Already sending a host command\n",
+ get_cmd_string(cmd->id));
+ return -EBUSY;
+ }
+
+ set_bit(STATUS_HCMD_ACTIVE, &priv->status);
+
+ if (cmd->meta.flags & CMD_WANT_SKB)
+ cmd->meta.source = &cmd->meta;
+
+ cmd_idx = iwl4965_enqueue_hcmd(priv, cmd);
+ if (cmd_idx < 0) {
+ ret = cmd_idx;
+ IWL_ERROR("Error sending %s: iwl4965_enqueue_hcmd failed: %d\n",
+ get_cmd_string(cmd->id), ret);
+ goto out;
+ }
+
+ ret = wait_event_interruptible_timeout(priv->wait_command_queue,
+ !test_bit(STATUS_HCMD_ACTIVE, &priv->status),
+ HOST_COMPLETE_TIMEOUT);
+ if (!ret) {
+ if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
+ IWL_ERROR("Error sending %s: time out after %dms.\n",
+ get_cmd_string(cmd->id),
+ jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
+
+ clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+ ret = -ETIMEDOUT;
+ goto cancel;
+ }
+ }
+
+ if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
+ IWL_DEBUG_INFO("Command %s aborted: RF KILL Switch\n",
+ get_cmd_string(cmd->id));
+ ret = -ECANCELED;
+ goto fail;
+ }
+ if (test_bit(STATUS_FW_ERROR, &priv->status)) {
+ IWL_DEBUG_INFO("Command %s failed: FW Error\n",
+ get_cmd_string(cmd->id));
+ ret = -EIO;
+ goto fail;
+ }
+ if ((cmd->meta.flags & CMD_WANT_SKB) && !cmd->meta.u.skb) {
+ IWL_ERROR("Error: Response NULL in '%s'\n",
+ get_cmd_string(cmd->id));
+ ret = -EIO;
+ goto out;
+ }
+
+ ret = 0;
+ goto out;
+
+cancel:
+ if (cmd->meta.flags & CMD_WANT_SKB) {
+ struct iwl4965_cmd *qcmd;
+
+ /* Cancel the CMD_WANT_SKB flag for the cmd in the
+ * TX cmd queue. Otherwise in case the cmd comes
+ * in later, it will possibly set an invalid
+ * address (cmd->meta.source). */
+ qcmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_idx];
+ qcmd->meta.flags &= ~CMD_WANT_SKB;
+ }
+fail:
+ if (cmd->meta.u.skb) {
+ dev_kfree_skb_any(cmd->meta.u.skb);
+ cmd->meta.u.skb = NULL;
+ }
+out:
+ atomic_set(&entry, 0);
+ return ret;
+}
+
+int iwl4965_send_cmd(struct iwl4965_priv *priv, struct iwl4965_host_cmd *cmd)
+{
+ if (cmd->meta.flags & CMD_ASYNC)
+ return iwl4965_send_cmd_async(priv, cmd);
+
+ return iwl4965_send_cmd_sync(priv, cmd);
+}
+
+int iwl4965_send_cmd_pdu(struct iwl4965_priv *priv, u8 id, u16 len, const void *data)
+{
+ struct iwl4965_host_cmd cmd = {
+ .id = id,
+ .len = len,
+ .data = data,
+ };
+
+ return iwl4965_send_cmd_sync(priv, &cmd);
+}
+
+static int __must_check iwl4965_send_cmd_u32(struct iwl4965_priv *priv, u8 id, u32 val)
+{
+ struct iwl4965_host_cmd cmd = {
+ .id = id,
+ .len = sizeof(val),
+ .data = &val,
+ };
+
+ return iwl4965_send_cmd_sync(priv, &cmd);
+}
+
+int iwl4965_send_statistics_request(struct iwl4965_priv *priv)
+{
+ return iwl4965_send_cmd_u32(priv, REPLY_STATISTICS_CMD, 0);
+}
+
+/**
+ * iwl4965_rxon_add_station - add station into station table.
+ *
+ * there is only one AP station with id= IWL_AP_ID
+ * NOTE: mutex must be held before calling this fnction
+ */
+static int iwl4965_rxon_add_station(struct iwl4965_priv *priv,
+ const u8 *addr, int is_ap)
+{
+ u8 sta_id;
+
+ /* Add station to device's station table */
+#ifdef CONFIG_IWL4965_HT
+ struct ieee80211_conf *conf = &priv->hw->conf;
+ struct ieee80211_ht_info *cur_ht_config = &conf->ht_conf;
+
+ if ((is_ap) &&
+ (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) &&
+ (priv->iw_mode == IEEE80211_IF_TYPE_STA))
+ sta_id = iwl4965_add_station_flags(priv, addr, is_ap,
+ 0, cur_ht_config);
+ else
+#endif /* CONFIG_IWL4965_HT */
+ sta_id = iwl4965_add_station_flags(priv, addr, is_ap,
+ 0, NULL);
+
+ /* Set up default rate scaling table in device's station table */
+ iwl4965_add_station(priv, addr, is_ap);
+
+ return sta_id;
+}
+
+/**
+ * iwl4965_set_rxon_channel - Set the phymode and channel values in staging RXON
+ * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
+ * @channel: Any channel valid for the requested phymode
+
+ * In addition to setting the staging RXON, priv->phymode is also set.
+ *
+ * NOTE: Does not commit to the hardware; it sets appropriate bit fields
+ * in the staging RXON flag structure based on the phymode
+ */
+static int iwl4965_set_rxon_channel(struct iwl4965_priv *priv, u8 phymode,
+ u16 channel)
+{
+ if (!iwl4965_get_channel_info(priv, phymode, channel)) {
+ IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
+ channel, phymode);
+ return -EINVAL;
+ }
+
+ if ((le16_to_cpu(priv->staging_rxon.channel) == channel) &&
+ (priv->phymode == phymode))
+ return 0;
+
+ priv->staging_rxon.channel = cpu_to_le16(channel);
+ if (phymode == MODE_IEEE80211A)
+ priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
+ else
+ priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
+
+ priv->phymode = phymode;
+
+ IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel, phymode);
+
+ return 0;
+}
+
+/**
+ * iwl4965_check_rxon_cmd - validate RXON structure is valid
+ *
+ * NOTE: This is really only useful during development and can eventually
+ * be #ifdef'd out once the driver is stable and folks aren't actively
+ * making changes
+ */
+static int iwl4965_check_rxon_cmd(struct iwl4965_rxon_cmd *rxon)
+{
+ int error = 0;
+ int counter = 1;
+
+ if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
+ error |= le32_to_cpu(rxon->flags &
+ (RXON_FLG_TGJ_NARROW_BAND_MSK |
+ RXON_FLG_RADAR_DETECT_MSK));
+ if (error)
+ IWL_WARNING("check 24G fields %d | %d\n",
+ counter++, error);
+ } else {
+ error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
+ 0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
+ if (error)
+ IWL_WARNING("check 52 fields %d | %d\n",
+ counter++, error);
+ error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
+ if (error)
+ IWL_WARNING("check 52 CCK %d | %d\n",
+ counter++, error);
+ }
+ error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
+ if (error)
+ IWL_WARNING("check mac addr %d | %d\n", counter++, error);
+
+ /* make sure basic rates 6Mbps and 1Mbps are supported */
+ error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
+ ((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
+ if (error)
+ IWL_WARNING("check basic rate %d | %d\n", counter++, error);
+
+ error |= (le16_to_cpu(rxon->assoc_id) > 2007);
+ if (error)
+ IWL_WARNING("check assoc id %d | %d\n", counter++, error);
+
+ error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
+ == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
+ if (error)
+ IWL_WARNING("check CCK and short slot %d | %d\n",
+ counter++, error);
+
+ error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
+ == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
+ if (error)
+ IWL_WARNING("check CCK & auto detect %d | %d\n",
+ counter++, error);
+
+ error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
+ RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
+ if (error)
+ IWL_WARNING("check TGG and auto detect %d | %d\n",
+ counter++, error);
+
+ if (error)
+ IWL_WARNING("Tuning to channel %d\n",
+ le16_to_cpu(rxon->channel));
+
+ if (error) {
+ IWL_ERROR("Not a valid iwl4965_rxon_assoc_cmd field values\n");
+ return -1;
+ }
+ return 0;
+}
+
+/**
+ * iwl4965_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
+ * @priv: staging_rxon is compared to active_rxon
+ *
+ * If the RXON structure is changing enough to require a new tune,
+ * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
+ * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
+ */
+static int iwl4965_full_rxon_required(struct iwl4965_priv *priv)
+{
+
+ /* These items are only settable from the full RXON command */
+ if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ||
+ compare_ether_addr(priv->staging_rxon.bssid_addr,
+ priv->active_rxon.bssid_addr) ||
+ compare_ether_addr(priv->staging_rxon.node_addr,
+ priv->active_rxon.node_addr) ||
+ compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
+ priv->active_rxon.wlap_bssid_addr) ||
+ (priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
+ (priv->staging_rxon.channel != priv->active_rxon.channel) ||
+ (priv->staging_rxon.air_propagation !=
+ priv->active_rxon.air_propagation) ||
+ (priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
+ priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
+ (priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
+ priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
+ (priv->staging_rxon.rx_chain != priv->active_rxon.rx_chain) ||
+ (priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
+ return 1;
+
+ /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
+ * be updated with the RXON_ASSOC command -- however only some
+ * flag transitions are allowed using RXON_ASSOC */
+
+ /* Check if we are not switching bands */
+ if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
+ (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
+ return 1;
+
+ /* Check if we are switching association toggle */
+ if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
+ (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
+ return 1;
+
+ return 0;
+}
+
+static int iwl4965_send_rxon_assoc(struct iwl4965_priv *priv)
+{
+ int rc = 0;
+ struct iwl4965_rx_packet *res = NULL;
+ struct iwl4965_rxon_assoc_cmd rxon_assoc;
+ struct iwl4965_host_cmd cmd = {
+ .id = REPLY_RXON_ASSOC,
+ .len = sizeof(rxon_assoc),
+ .meta.flags = CMD_WANT_SKB,
+ .data = &rxon_assoc,
+ };
+ const struct iwl4965_rxon_cmd *rxon1 = &priv->staging_rxon;
+ const struct iwl4965_rxon_cmd *rxon2 = &priv->active_rxon;
+
+ if ((rxon1->flags == rxon2->flags) &&
+ (rxon1->filter_flags == rxon2->filter_flags) &&
+ (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
+ (rxon1->ofdm_ht_single_stream_basic_rates ==
+ rxon2->ofdm_ht_single_stream_basic_rates) &&
+ (rxon1->ofdm_ht_dual_stream_basic_rates ==
+ rxon2->ofdm_ht_dual_stream_basic_rates) &&
+ (rxon1->rx_chain == rxon2->rx_chain) &&
+ (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
+ IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
+ return 0;
+ }
+
+ rxon_assoc.flags = priv->staging_rxon.flags;
+ rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
+ rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
+ rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
+ rxon_assoc.reserved = 0;
+ rxon_assoc.ofdm_ht_single_stream_basic_rates =
+ priv->staging_rxon.ofdm_ht_single_stream_basic_rates;
+ rxon_assoc.ofdm_ht_dual_stream_basic_rates =
+ priv->staging_rxon.ofdm_ht_dual_stream_basic_rates;
+ rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain;
+
+ rc = iwl4965_send_cmd_sync(priv, &cmd);
+ if (rc)
+ return rc;
+
+ res = (struct iwl4965_rx_packet *)cmd.meta.u.skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERROR("Bad return from REPLY_RXON_ASSOC command\n");
+ rc = -EIO;
+ }
+
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb_any(cmd.meta.u.skb);
+
+ return rc;
+}
+
+/**
+ * iwl4965_commit_rxon - commit staging_rxon to hardware
+ *
+ * The RXON command in staging_rxon is committed to the hardware and
+ * the active_rxon structure is updated with the new data. This
+ * function correctly transitions out of the RXON_ASSOC_MSK state if
+ * a HW tune is required based on the RXON structure changes.
+ */
+static int iwl4965_commit_rxon(struct iwl4965_priv *priv)
+{
+ /* cast away the const for active_rxon in this function */
+ struct iwl4965_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
+ DECLARE_MAC_BUF(mac);
+ int rc = 0;
+
+ if (!iwl4965_is_alive(priv))
+ return -1;
+
+ /* always get timestamp with Rx frame */
+ priv->staging_rxon.flags |= RXON_FLG_TSF2HOST_MSK;
+
+ rc = iwl4965_check_rxon_cmd(&priv->staging_rxon);
+ if (rc) {
+ IWL_ERROR("Invalid RXON configuration. Not committing.\n");
+ return -EINVAL;
+ }
+
+ /* If we don't need to send a full RXON, we can use
+ * iwl4965_rxon_assoc_cmd which is used to reconfigure filter
+ * and other flags for the current radio configuration. */
+ if (!iwl4965_full_rxon_required(priv)) {
+ rc = iwl4965_send_rxon_assoc(priv);
+ if (rc) {
+ IWL_ERROR("Error setting RXON_ASSOC "
+ "configuration (%d).\n", rc);
+ return rc;
+ }
+
+ memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+
+ return 0;
+ }
+
+ /* station table will be cleared */
+ priv->assoc_station_added = 0;
+
+#ifdef CONFIG_IWL4965_SENSITIVITY
+ priv->sensitivity_data.state = IWL_SENS_CALIB_NEED_REINIT;
+ if (!priv->error_recovering)
+ priv->start_calib = 0;
+
+ iwl4965_init_sensitivity(priv, CMD_ASYNC, 1);
+#endif /* CONFIG_IWL4965_SENSITIVITY */
+
+ /* If we are currently associated and the new config requires
+ * an RXON_ASSOC and the new config wants the associated mask enabled,
+ * we must clear the associated from the active configuration
+ * before we apply the new config */
+ if (iwl4965_is_associated(priv) &&
+ (priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK)) {
+ IWL_DEBUG_INFO("Toggling associated bit on current RXON\n");
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+
+ rc = iwl4965_send_cmd_pdu(priv, REPLY_RXON,
+ sizeof(struct iwl4965_rxon_cmd),
+ &priv->active_rxon);
+
+ /* If the mask clearing failed then we set
+ * active_rxon back to what it was previously */
+ if (rc) {
+ active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
+ IWL_ERROR("Error clearing ASSOC_MSK on current "
+ "configuration (%d).\n", rc);
+ return rc;
+ }
+ }
+
+ IWL_DEBUG_INFO("Sending RXON\n"
+ "* with%s RXON_FILTER_ASSOC_MSK\n"
+ "* channel = %d\n"
+ "* bssid = %s\n",
+ ((priv->staging_rxon.filter_flags &
+ RXON_FILTER_ASSOC_MSK) ? "" : "out"),
+ le16_to_cpu(priv->staging_rxon.channel),
+ print_mac(mac, priv->staging_rxon.bssid_addr));
+
+ /* Apply the new configuration */
+ rc = iwl4965_send_cmd_pdu(priv, REPLY_RXON,
+ sizeof(struct iwl4965_rxon_cmd), &priv->staging_rxon);
+ if (rc) {
+ IWL_ERROR("Error setting new configuration (%d).\n", rc);
+ return rc;
+ }
+
+ iwl4965_clear_stations_table(priv);
+
+#ifdef CONFIG_IWL4965_SENSITIVITY
+ if (!priv->error_recovering)
+ priv->start_calib = 0;
+
+ priv->sensitivity_data.state = IWL_SENS_CALIB_NEED_REINIT;
+ iwl4965_init_sensitivity(priv, CMD_ASYNC, 1);
+#endif /* CONFIG_IWL4965_SENSITIVITY */
+
+ memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
+
+ /* If we issue a new RXON command which required a tune then we must
+ * send a new TXPOWER command or we won't be able to Tx any frames */
+ rc = iwl4965_hw_reg_send_txpower(priv);
+ if (rc) {
+ IWL_ERROR("Error setting Tx power (%d).\n", rc);
+ return rc;
+ }
+
+ /* Add the broadcast address so we can send broadcast frames */
+ if (iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0) ==
+ IWL_INVALID_STATION) {
+ IWL_ERROR("Error adding BROADCAST address for transmit.\n");
+ return -EIO;
+ }
+
+ /* If we have set the ASSOC_MSK and we are in BSS mode then
+ * add the IWL_AP_ID to the station rate table */
+ if (iwl4965_is_associated(priv) &&
+ (priv->iw_mode == IEEE80211_IF_TYPE_STA)) {
+ if (iwl4965_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1)
+ == IWL_INVALID_STATION) {
+ IWL_ERROR("Error adding AP address for transmit.\n");
+ return -EIO;
+ }
+ priv->assoc_station_added = 1;
+ }
+
+ return 0;
+}
+
+static int iwl4965_send_bt_config(struct iwl4965_priv *priv)
+{
+ struct iwl4965_bt_cmd bt_cmd = {
+ .flags = 3,
+ .lead_time = 0xAA,
+ .max_kill = 1,
+ .kill_ack_mask = 0,
+ .kill_cts_mask = 0,
+ };
+
+ return iwl4965_send_cmd_pdu(priv, REPLY_BT_CONFIG,
+ sizeof(struct iwl4965_bt_cmd), &bt_cmd);
+}
+
+static int iwl4965_send_scan_abort(struct iwl4965_priv *priv)
+{
+ int rc = 0;
+ struct iwl4965_rx_packet *res;
+ struct iwl4965_host_cmd cmd = {
+ .id = REPLY_SCAN_ABORT_CMD,
+ .meta.flags = CMD_WANT_SKB,
+ };
+
+ /* If there isn't a scan actively going on in the hardware
+ * then we are in between scan bands and not actually
+ * actively scanning, so don't send the abort command */
+ if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
+ clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+ return 0;
+ }
+
+ rc = iwl4965_send_cmd_sync(priv, &cmd);
+ if (rc) {
+ clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+ return rc;
+ }
+
+ res = (struct iwl4965_rx_packet *)cmd.meta.u.skb->data;
+ if (res->u.status != CAN_ABORT_STATUS) {
+ /* The scan abort will return 1 for success or
+ * 2 for "failure". A failure condition can be
+ * due to simply not being in an active scan which
+ * can occur if we send the scan abort before we
+ * the microcode has notified us that a scan is
+ * completed. */
+ IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
+ clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+ clear_bit(STATUS_SCAN_HW, &priv->status);
+ }
+
+ dev_kfree_skb_any(cmd.meta.u.skb);
+
+ return rc;
+}
+
+static int iwl4965_card_state_sync_callback(struct iwl4965_priv *priv,
+ struct iwl4965_cmd *cmd,
+ struct sk_buff *skb)
+{
+ return 1;
+}
+
+/*
+ * CARD_STATE_CMD
+ *
+ * Use: Sets the device's internal card state to enable, disable, or halt
+ *
+ * When in the 'enable' state the card operates as normal.
+ * When in the 'disable' state, the card enters into a low power mode.
+ * When in the 'halt' state, the card is shut down and must be fully
+ * restarted to come back on.
+ */
+static int iwl4965_send_card_state(struct iwl4965_priv *priv, u32 flags, u8 meta_flag)
+{
+ struct iwl4965_host_cmd cmd = {
+ .id = REPLY_CARD_STATE_CMD,
+ .len = sizeof(u32),
+ .data = &flags,
+ .meta.flags = meta_flag,
+ };
+
+ if (meta_flag & CMD_ASYNC)
+ cmd.meta.u.callback = iwl4965_card_state_sync_callback;
+
+ return iwl4965_send_cmd(priv, &cmd);
+}
+
+static int iwl4965_add_sta_sync_callback(struct iwl4965_priv *priv,
+ struct iwl4965_cmd *cmd, struct sk_buff *skb)
+{
+ struct iwl4965_rx_packet *res = NULL;
+
+ if (!skb) {
+ IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
+ return 1;
+ }
+
+ res = (struct iwl4965_rx_packet *)skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
+ res->hdr.flags);
+ return 1;
+ }
+
+ switch (res->u.add_sta.status) {
+ case ADD_STA_SUCCESS_MSK:
+ break;
+ default:
+ break;
+ }
+
+ /* We didn't cache the SKB; let the caller free it */
+ return 1;
+}
+
+int iwl4965_send_add_station(struct iwl4965_priv *priv,
+ struct iwl4965_addsta_cmd *sta, u8 flags)
+{
+ struct iwl4965_rx_packet *res = NULL;
+ int rc = 0;
+ struct iwl4965_host_cmd cmd = {
+ .id = REPLY_ADD_STA,
+ .len = sizeof(struct iwl4965_addsta_cmd),
+ .meta.flags = flags,
+ .data = sta,
+ };
+
+ if (flags & CMD_ASYNC)
+ cmd.meta.u.callback = iwl4965_add_sta_sync_callback;
+ else
+ cmd.meta.flags |= CMD_WANT_SKB;
+
+ rc = iwl4965_send_cmd(priv, &cmd);
+
+ if (rc || (flags & CMD_ASYNC))
+ return rc;
+
+ res = (struct iwl4965_rx_packet *)cmd.meta.u.skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERROR("Bad return from REPLY_ADD_STA (0x%08X)\n",
+ res->hdr.flags);
+ rc = -EIO;
+ }
+
+ if (rc == 0) {
+ switch (res->u.add_sta.status) {
+ case ADD_STA_SUCCESS_MSK:
+ IWL_DEBUG_INFO("REPLY_ADD_STA PASSED\n");
+ break;
+ default:
+ rc = -EIO;
+ IWL_WARNING("REPLY_ADD_STA failed\n");
+ break;
+ }
+ }
+
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb_any(cmd.meta.u.skb);
+
+ return rc;
+}
+
+static int iwl4965_update_sta_key_info(struct iwl4965_priv *priv,
+ struct ieee80211_key_conf *keyconf,
+ u8 sta_id)
+{
+ unsigned long flags;
+ __le16 key_flags = 0;
+
+ switch (keyconf->alg) {
+ case ALG_CCMP:
+ key_flags |= STA_KEY_FLG_CCMP;
+ key_flags |= cpu_to_le16(
+ keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+ key_flags &= ~STA_KEY_FLG_INVALID;
+ break;
+ case ALG_TKIP:
+ case ALG_WEP:
+ default:
+ return -EINVAL;
+ }
+ spin_lock_irqsave(&priv->sta_lock, flags);
+ priv->stations[sta_id].keyinfo.alg = keyconf->alg;
+ priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
+ memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
+ keyconf->keylen);
+
+ memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
+ keyconf->keylen);
+ priv->stations[sta_id].sta.key.key_flags = key_flags;
+ priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+ priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ IWL_DEBUG_INFO("hwcrypto: modify ucode station key info\n");
+ iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, 0);
+ return 0;
+}
+
+static int iwl4965_clear_sta_key_info(struct iwl4965_priv *priv, u8 sta_id)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+ memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl4965_hw_key));
+ memset(&priv->stations[sta_id].sta.key, 0, sizeof(struct iwl4965_keyinfo));
+ priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
+ priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+ priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+
+ IWL_DEBUG_INFO("hwcrypto: clear ucode station key info\n");
+ iwl4965_send_add_station(priv, &priv->stations[sta_id].sta, 0);
+ return 0;
+}
+
+static void iwl4965_clear_free_frames(struct iwl4965_priv *priv)
+{
+ struct list_head *element;
+
+ IWL_DEBUG_INFO("%d frames on pre-allocated heap on clear.\n",
+ priv->frames_count);
+
+ while (!list_empty(&priv->free_frames)) {
+ element = priv->free_frames.next;
+ list_del(element);
+ kfree(list_entry(element, struct iwl4965_frame, list));
+ priv->frames_count--;
+ }
+
+ if (priv->frames_count) {
+ IWL_WARNING("%d frames still in use. Did we lose one?\n",
+ priv->frames_count);
+ priv->frames_count = 0;
+ }
+}
+
+static struct iwl4965_frame *iwl4965_get_free_frame(struct iwl4965_priv *priv)
+{
+ struct iwl4965_frame *frame;
+ struct list_head *element;
+ if (list_empty(&priv->free_frames)) {
+ frame = kzalloc(sizeof(*frame), GFP_KERNEL);
+ if (!frame) {
+ IWL_ERROR("Could not allocate frame!\n");
+ return NULL;
+ }
+
+ priv->frames_count++;
+ return frame;
+ }
+
+ element = priv->free_frames.next;
+ list_del(element);
+ return list_entry(element, struct iwl4965_frame, list);
+}
+
+static void iwl4965_free_frame(struct iwl4965_priv *priv, struct iwl4965_frame *frame)
+{
+ memset(frame, 0, sizeof(*frame));
+ list_add(&frame->list, &priv->free_frames);
+}
+
+unsigned int iwl4965_fill_beacon_frame(struct iwl4965_priv *priv,
+ struct ieee80211_hdr *hdr,
+ const u8 *dest, int left)
+{
+
+ if (!iwl4965_is_associated(priv) || !priv->ibss_beacon ||
+ ((priv->iw_mode != IEEE80211_IF_TYPE_IBSS) &&
+ (priv->iw_mode != IEEE80211_IF_TYPE_AP)))
+ return 0;
+
+ if (priv->ibss_beacon->len > left)
+ return 0;
+
+ memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
+
+ return priv->ibss_beacon->len;
+}
+
+int iwl4965_rate_index_from_plcp(int plcp)
+{
+ int i = 0;
+
+ /* 4965 HT rate format */
+ if (plcp & RATE_MCS_HT_MSK) {
+ i = (plcp & 0xff);
+
+ if (i >= IWL_RATE_MIMO_6M_PLCP)
+ i = i - IWL_RATE_MIMO_6M_PLCP;
+
+ i += IWL_FIRST_OFDM_RATE;
+ /* skip 9M not supported in ht*/
+ if (i >= IWL_RATE_9M_INDEX)
+ i += 1;
+ if ((i >= IWL_FIRST_OFDM_RATE) &&
+ (i <= IWL_LAST_OFDM_RATE))
+ return i;
+
+ /* 4965 legacy rate format, search for match in table */
+ } else {
+ for (i = 0; i < ARRAY_SIZE(iwl4965_rates); i++)
+ if (iwl4965_rates[i].plcp == (plcp &0xFF))
+ return i;
+ }
+ return -1;
+}
+
+static u8 iwl4965_rate_get_lowest_plcp(int rate_mask)
+{
+ u8 i;
+
+ for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
+ i = iwl4965_rates[i].next_ieee) {
+ if (rate_mask & (1 << i))
+ return iwl4965_rates[i].plcp;
+ }
+
+ return IWL_RATE_INVALID;
+}
+
+static int iwl4965_send_beacon_cmd(struct iwl4965_priv *priv)
+{
+ struct iwl4965_frame *frame;
+ unsigned int frame_size;
+ int rc;
+ u8 rate;
+
+ frame = iwl4965_get_free_frame(priv);
+
+ if (!frame) {
+ IWL_ERROR("Could not obtain free frame buffer for beacon "
+ "command.\n");
+ return -ENOMEM;
+ }
+
+ if (!(priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)) {
+ rate = iwl4965_rate_get_lowest_plcp(priv->active_rate_basic &
+ 0xFF0);
+ if (rate == IWL_INVALID_RATE)
+ rate = IWL_RATE_6M_PLCP;
+ } else {
+ rate = iwl4965_rate_get_lowest_plcp(priv->active_rate_basic & 0xF);
+ if (rate == IWL_INVALID_RATE)
+ rate = IWL_RATE_1M_PLCP;
+ }
+
+ frame_size = iwl4965_hw_get_beacon_cmd(priv, frame, rate);
+
+ rc = iwl4965_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
+ &frame->u.cmd[0]);
+
+ iwl4965_free_frame(priv, frame);
+
+ return rc;
+}
+
+/******************************************************************************
+ *
+ * EEPROM related functions
+ *
+ ******************************************************************************/
+
+static void get_eeprom_mac(struct iwl4965_priv *priv, u8 *mac)
+{
+ memcpy(mac, priv->eeprom.mac_address, 6);
+}
+
+/**
+ * iwl4965_eeprom_init - read EEPROM contents
+ *
+ * Load the EEPROM contents from adapter into priv->eeprom
+ *
+ * NOTE: This routine uses the non-debug IO access functions.
+ */
+int iwl4965_eeprom_init(struct iwl4965_priv *priv)
+{
+ u16 *e = (u16 *)&priv->eeprom;
+ u32 gp = iwl4965_read32(priv, CSR_EEPROM_GP);
+ u32 r;
+ int sz = sizeof(priv->eeprom);
+ int rc;
+ int i;
+ u16 addr;
+
+ /* The EEPROM structure has several padding buffers within it
+ * and when adding new EEPROM maps is subject to programmer errors
+ * which may be very difficult to identify without explicitly
+ * checking the resulting size of the eeprom map. */
+ BUILD_BUG_ON(sizeof(priv->eeprom) != IWL_EEPROM_IMAGE_SIZE);
+
+ if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) {
+ IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x", gp);
+ return -ENOENT;
+ }
+
+ /* Make sure driver (instead of uCode) is allowed to read EEPROM */
+ rc = iwl4965_eeprom_acquire_semaphore(priv);
+ if (rc < 0) {
+ IWL_ERROR("Failed to acquire EEPROM semaphore.\n");
+ return -ENOENT;
+ }
+
+ /* eeprom is an array of 16bit values */
+ for (addr = 0; addr < sz; addr += sizeof(u16)) {
+ _iwl4965_write32(priv, CSR_EEPROM_REG, addr << 1);
+ _iwl4965_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD);
+
+ for (i = 0; i < IWL_EEPROM_ACCESS_TIMEOUT;
+ i += IWL_EEPROM_ACCESS_DELAY) {
+ r = _iwl4965_read_direct32(priv, CSR_EEPROM_REG);
+ if (r & CSR_EEPROM_REG_READ_VALID_MSK)
+ break;
+ udelay(IWL_EEPROM_ACCESS_DELAY);
+ }
+
+ if (!(r & CSR_EEPROM_REG_READ_VALID_MSK)) {
+ IWL_ERROR("Time out reading EEPROM[%d]", addr);
+ rc = -ETIMEDOUT;
+ goto done;
+ }
+ e[addr / 2] = le16_to_cpu(r >> 16);
+ }
+ rc = 0;
+
+done:
+ iwl4965_eeprom_release_semaphore(priv);
+ return rc;
+}
+
+/******************************************************************************
+ *
+ * Misc. internal state and helper functions
+ *
+ ******************************************************************************/
+#ifdef CONFIG_IWL4965_DEBUG
+
+/**
+ * iwl4965_report_frame - dump frame to syslog during debug sessions
+ *
+ * You may hack this function to show different aspects of received frames,
+ * including selective frame dumps.
+ * group100 parameter selects whether to show 1 out of 100 good frames.
+ *
+ * TODO: This was originally written for 3945, need to audit for
+ * proper operation with 4965.
+ */
+void iwl4965_report_frame(struct iwl4965_priv *priv,
+ struct iwl4965_rx_packet *pkt,
+ struct ieee80211_hdr *header, int group100)
+{
+ u32 to_us;
+ u32 print_summary = 0;
+ u32 print_dump = 0; /* set to 1 to dump all frames' contents */
+ u32 hundred = 0;
+ u32 dataframe = 0;
+ u16 fc;
+ u16 seq_ctl;
+ u16 channel;
+ u16 phy_flags;
+ int rate_sym;
+ u16 length;
+ u16 status;
+ u16 bcn_tmr;
+ u32 tsf_low;
+ u64 tsf;
+ u8 rssi;
+ u8 agc;
+ u16 sig_avg;
+ u16 noise_diff;
+ struct iwl4965_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
+ struct iwl4965_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
+ struct iwl4965_rx_frame_end *rx_end = IWL_RX_END(pkt);
+ u8 *data = IWL_RX_DATA(pkt);
+
+ /* MAC header */
+ fc = le16_to_cpu(header->frame_control);
+ seq_ctl = le16_to_cpu(header->seq_ctrl);
+
+ /* metadata */
+ channel = le16_to_cpu(rx_hdr->channel);
+ phy_flags = le16_to_cpu(rx_hdr->phy_flags);
+ rate_sym = rx_hdr->rate;
+ length = le16_to_cpu(rx_hdr->len);
+
+ /* end-of-frame status and timestamp */
+ status = le32_to_cpu(rx_end->status);
+ bcn_tmr = le32_to_cpu(rx_end->beacon_timestamp);
+ tsf_low = le64_to_cpu(rx_end->timestamp) & 0x0ffffffff;
+ tsf = le64_to_cpu(rx_end->timestamp);
+
+ /* signal statistics */
+ rssi = rx_stats->rssi;
+ agc = rx_stats->agc;
+ sig_avg = le16_to_cpu(rx_stats->sig_avg);
+ noise_diff = le16_to_cpu(rx_stats->noise_diff);
+
+ to_us = !compare_ether_addr(header->addr1, priv->mac_addr);
+
+ /* if data frame is to us and all is good,
+ * (optionally) print summary for only 1 out of every 100 */
+ if (to_us && (fc & ~IEEE80211_FCTL_PROTECTED) ==
+ (IEEE80211_FCTL_FROMDS | IEEE80211_FTYPE_DATA)) {
+ dataframe = 1;
+ if (!group100)
+ print_summary = 1; /* print each frame */
+ else if (priv->framecnt_to_us < 100) {
+ priv->framecnt_to_us++;
+ print_summary = 0;
+ } else {
+ priv->framecnt_to_us = 0;
+ print_summary = 1;
+ hundred = 1;
+ }
+ } else {
+ /* print summary for all other frames */
+ print_summary = 1;
+ }
+
+ if (print_summary) {
+ char *title;
+ u32 rate;
+
+ if (hundred)
+ title = "100Frames";
+ else if (fc & IEEE80211_FCTL_RETRY)
+ title = "Retry";
+ else if (ieee80211_is_assoc_response(fc))
+ title = "AscRsp";
+ else if (ieee80211_is_reassoc_response(fc))
+ title = "RasRsp";
+ else if (ieee80211_is_probe_response(fc)) {
+ title = "PrbRsp";
+ print_dump = 1; /* dump frame contents */
+ } else if (ieee80211_is_beacon(fc)) {
+ title = "Beacon";
+ print_dump = 1; /* dump frame contents */
+ } else if (ieee80211_is_atim(fc))
+ title = "ATIM";
+ else if (ieee80211_is_auth(fc))
+ title = "Auth";
+ else if (ieee80211_is_deauth(fc))
+ title = "DeAuth";
+ else if (ieee80211_is_disassoc(fc))
+ title = "DisAssoc";
+ else
+ title = "Frame";
+
+ rate = iwl4965_rate_index_from_plcp(rate_sym);
+ if (rate == -1)
+ rate = 0;
+ else
+ rate = iwl4965_rates[rate].ieee / 2;
+
+ /* print frame summary.
+ * MAC addresses show just the last byte (for brevity),
+ * but you can hack it to show more, if you'd like to. */
+ if (dataframe)
+ IWL_DEBUG_RX("%s: mhd=0x%04x, dst=0x%02x, "
+ "len=%u, rssi=%d, chnl=%d, rate=%u, \n",
+ title, fc, header->addr1[5],
+ length, rssi, channel, rate);
+ else {
+ /* src/dst addresses assume managed mode */
+ IWL_DEBUG_RX("%s: 0x%04x, dst=0x%02x, "
+ "src=0x%02x, rssi=%u, tim=%lu usec, "
+ "phy=0x%02x, chnl=%d\n",
+ title, fc, header->addr1[5],
+ header->addr3[5], rssi,
+ tsf_low - priv->scan_start_tsf,
+ phy_flags, channel);
+ }
+ }
+ if (print_dump)
+ iwl4965_print_hex_dump(IWL_DL_RX, data, length);
+}
+#endif
+
+static void iwl4965_unset_hw_setting(struct iwl4965_priv *priv)
+{
+ if (priv->hw_setting.shared_virt)
+ pci_free_consistent(priv->pci_dev,
+ sizeof(struct iwl4965_shared),
+ priv->hw_setting.shared_virt,
+ priv->hw_setting.shared_phys);
+}
+
+/**
+ * iwl4965_supported_rate_to_ie - fill in the supported rate in IE field
+ *
+ * return : set the bit for each supported rate insert in ie
+ */
+static u16 iwl4965_supported_rate_to_ie(u8 *ie, u16 supported_rate,
+ u16 basic_rate, int *left)
+{
+ u16 ret_rates = 0, bit;
+ int i;
+ u8 *cnt = ie;
+ u8 *rates = ie + 1;
+
+ for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
+ if (bit & supported_rate) {
+ ret_rates |= bit;
+ rates[*cnt] = iwl4965_rates[i].ieee |
+ ((bit & basic_rate) ? 0x80 : 0x00);
+ (*cnt)++;
+ (*left)--;
+ if ((*left <= 0) ||
+ (*cnt >= IWL_SUPPORTED_RATES_IE_LEN))
+ break;
+ }
+ }
+
+ return ret_rates;
+}
+
+#ifdef CONFIG_IWL4965_HT
+void static iwl4965_set_ht_capab(struct ieee80211_hw *hw,
+ struct ieee80211_ht_cap *ht_cap,
+ u8 use_current_config);
+#endif
+
+/**
+ * iwl4965_fill_probe_req - fill in all required fields and IE for probe request
+ */
+static u16 iwl4965_fill_probe_req(struct iwl4965_priv *priv,
+ struct ieee80211_mgmt *frame,
+ int left, int is_direct)
+{
+ int len = 0;
+ u8 *pos = NULL;
+ u16 active_rates, ret_rates, cck_rates, active_rate_basic;
+#ifdef CONFIG_IWL4965_HT
+ struct ieee80211_hw_mode *mode;
+#endif /* CONFIG_IWL4965_HT */
+
+ /* Make sure there is enough space for the probe request,
+ * two mandatory IEs and the data */
+ left -= 24;
+ if (left < 0)
+ return 0;
+ len += 24;
+
+ frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
+ memcpy(frame->da, iwl4965_broadcast_addr, ETH_ALEN);
+ memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
+ memcpy(frame->bssid, iwl4965_broadcast_addr, ETH_ALEN);
+ frame->seq_ctrl = 0;
+
+ /* fill in our indirect SSID IE */
+ /* ...next IE... */
+
+ left -= 2;
+ if (left < 0)
+ return 0;
+ len += 2;
+ pos = &(frame->u.probe_req.variable[0]);
+ *pos++ = WLAN_EID_SSID;
+ *pos++ = 0;
+
+ /* fill in our direct SSID IE... */
+ if (is_direct) {
+ /* ...next IE... */
+ left -= 2 + priv->essid_len;
+ if (left < 0)
+ return 0;
+ /* ... fill it in... */
+ *pos++ = WLAN_EID_SSID;
+ *pos++ = priv->essid_len;
+ memcpy(pos, priv->essid, priv->essid_len);
+ pos += priv->essid_len;
+ len += 2 + priv->essid_len;
+ }
+
+ /* fill in supported rate */
+ /* ...next IE... */
+ left -= 2;
+ if (left < 0)
+ return 0;
+
+ /* ... fill it in... */
+ *pos++ = WLAN_EID_SUPP_RATES;
+ *pos = 0;
+
+ /* exclude 60M rate */
+ active_rates = priv->rates_mask;
+ active_rates &= ~IWL_RATE_60M_MASK;
+
+ active_rate_basic = active_rates & IWL_BASIC_RATES_MASK;
+
+ cck_rates = IWL_CCK_RATES_MASK & active_rates;
+ ret_rates = iwl4965_supported_rate_to_ie(pos, cck_rates,
+ active_rate_basic, &left);
+ active_rates &= ~ret_rates;
+
+ ret_rates = iwl4965_supported_rate_to_ie(pos, active_rates,
+ active_rate_basic, &left);
+ active_rates &= ~ret_rates;
+
+ len += 2 + *pos;
+ pos += (*pos) + 1;
+ if (active_rates == 0)
+ goto fill_end;
+
+ /* fill in supported extended rate */
+ /* ...next IE... */
+ left -= 2;
+ if (left < 0)
+ return 0;
+ /* ... fill it in... */
+ *pos++ = WLAN_EID_EXT_SUPP_RATES;
+ *pos = 0;
+ iwl4965_supported_rate_to_ie(pos, active_rates,
+ active_rate_basic, &left);
+ if (*pos > 0)
+ len += 2 + *pos;
+
+#ifdef CONFIG_IWL4965_HT
+ mode = priv->hw->conf.mode;
+ if (mode->ht_info.ht_supported) {
+ pos += (*pos) + 1;
+ *pos++ = WLAN_EID_HT_CAPABILITY;
+ *pos++ = sizeof(struct ieee80211_ht_cap);
+ iwl4965_set_ht_capab(priv->hw,
+ (struct ieee80211_ht_cap *)pos, 0);
+ len += 2 + sizeof(struct ieee80211_ht_cap);
+ }
+#endif /*CONFIG_IWL4965_HT */
+
+ fill_end:
+ return (u16)len;
+}
+
+/*
+ * QoS support
+*/
+#ifdef CONFIG_IWL4965_QOS
+static int iwl4965_send_qos_params_command(struct iwl4965_priv *priv,
+ struct iwl4965_qosparam_cmd *qos)
+{
+
+ return iwl4965_send_cmd_pdu(priv, REPLY_QOS_PARAM,
+ sizeof(struct iwl4965_qosparam_cmd), qos);
+}
+
+static void iwl4965_reset_qos(struct iwl4965_priv *priv)
+{
+ u16 cw_min = 15;
+ u16 cw_max = 1023;
+ u8 aifs = 2;
+ u8 is_legacy = 0;
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->qos_data.qos_active = 0;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS) {
+ if (priv->qos_data.qos_enable)
+ priv->qos_data.qos_active = 1;
+ if (!(priv->active_rate & 0xfff0)) {
+ cw_min = 31;
+ is_legacy = 1;
+ }
+ } else if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+ if (priv->qos_data.qos_enable)
+ priv->qos_data.qos_active = 1;
+ } else if (!(priv->staging_rxon.flags & RXON_FLG_SHORT_SLOT_MSK)) {
+ cw_min = 31;
+ is_legacy = 1;
+ }
+
+ if (priv->qos_data.qos_active)
+ aifs = 3;
+
+ priv->qos_data.def_qos_parm.ac[0].cw_min = cpu_to_le16(cw_min);
+ priv->qos_data.def_qos_parm.ac[0].cw_max = cpu_to_le16(cw_max);
+ priv->qos_data.def_qos_parm.ac[0].aifsn = aifs;
+ priv->qos_data.def_qos_parm.ac[0].edca_txop = 0;
+ priv->qos_data.def_qos_parm.ac[0].reserved1 = 0;
+
+ if (priv->qos_data.qos_active) {
+ i = 1;
+ priv->qos_data.def_qos_parm.ac[i].cw_min = cpu_to_le16(cw_min);
+ priv->qos_data.def_qos_parm.ac[i].cw_max = cpu_to_le16(cw_max);
+ priv->qos_data.def_qos_parm.ac[i].aifsn = 7;
+ priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
+ priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
+
+ i = 2;
+ priv->qos_data.def_qos_parm.ac[i].cw_min =
+ cpu_to_le16((cw_min + 1) / 2 - 1);
+ priv->qos_data.def_qos_parm.ac[i].cw_max =
+ cpu_to_le16(cw_max);
+ priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
+ if (is_legacy)
+ priv->qos_data.def_qos_parm.ac[i].edca_txop =
+ cpu_to_le16(6016);
+ else
+ priv->qos_data.def_qos_parm.ac[i].edca_txop =
+ cpu_to_le16(3008);
+ priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
+
+ i = 3;
+ priv->qos_data.def_qos_parm.ac[i].cw_min =
+ cpu_to_le16((cw_min + 1) / 4 - 1);
+ priv->qos_data.def_qos_parm.ac[i].cw_max =
+ cpu_to_le16((cw_max + 1) / 2 - 1);
+ priv->qos_data.def_qos_parm.ac[i].aifsn = 2;
+ priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
+ if (is_legacy)
+ priv->qos_data.def_qos_parm.ac[i].edca_txop =
+ cpu_to_le16(3264);
+ else
+ priv->qos_data.def_qos_parm.ac[i].edca_txop =
+ cpu_to_le16(1504);
+ } else {
+ for (i = 1; i < 4; i++) {
+ priv->qos_data.def_qos_parm.ac[i].cw_min =
+ cpu_to_le16(cw_min);
+ priv->qos_data.def_qos_parm.ac[i].cw_max =
+ cpu_to_le16(cw_max);
+ priv->qos_data.def_qos_parm.ac[i].aifsn = aifs;
+ priv->qos_data.def_qos_parm.ac[i].edca_txop = 0;
+ priv->qos_data.def_qos_parm.ac[i].reserved1 = 0;
+ }
+ }
+ IWL_DEBUG_QOS("set QoS to default \n");
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static void iwl4965_activate_qos(struct iwl4965_priv *priv, u8 force)
+{
+ unsigned long flags;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ if (!priv->qos_data.qos_enable)
+ return;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->qos_data.def_qos_parm.qos_flags = 0;
+
+ if (priv->qos_data.qos_cap.q_AP.queue_request &&
+ !priv->qos_data.qos_cap.q_AP.txop_request)
+ priv->qos_data.def_qos_parm.qos_flags |=
+ QOS_PARAM_FLG_TXOP_TYPE_MSK;
+ if (priv->qos_data.qos_active)
+ priv->qos_data.def_qos_parm.qos_flags |=
+ QOS_PARAM_FLG_UPDATE_EDCA_MSK;
+
+#ifdef CONFIG_IWL4965_HT
+ if (priv->current_ht_config.is_ht)
+ priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
+#endif /* CONFIG_IWL4965_HT */
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (force || iwl4965_is_associated(priv)) {
+ IWL_DEBUG_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
+ priv->qos_data.qos_active,
+ priv->qos_data.def_qos_parm.qos_flags);
+
+ iwl4965_send_qos_params_command(priv,
+ &(priv->qos_data.def_qos_parm));
+ }
+}
+
+#endif /* CONFIG_IWL4965_QOS */
+/*
+ * Power management (not Tx power!) functions
+ */
+#define MSEC_TO_USEC 1024
+
+#define NOSLP __constant_cpu_to_le16(0), 0, 0
+#define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
+#define SLP_TIMEOUT(T) __constant_cpu_to_le32((T) * MSEC_TO_USEC)
+#define SLP_VEC(X0, X1, X2, X3, X4) {__constant_cpu_to_le32(X0), \
+ __constant_cpu_to_le32(X1), \
+ __constant_cpu_to_le32(X2), \
+ __constant_cpu_to_le32(X3), \
+ __constant_cpu_to_le32(X4)}
+
+
+/* default power management (not Tx power) table values */
+/* for tim 0-10 */
+static struct iwl4965_power_vec_entry range_0[IWL_POWER_AC] = {
+ {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
+ {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
+ {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300), SLP_VEC(2, 4, 6, 7, 7)}, 0},
+ {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100), SLP_VEC(2, 6, 9, 9, 10)}, 0},
+ {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 10)}, 1},
+ {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25), SLP_VEC(4, 7, 10, 10, 10)}, 1}
+};
+
+/* for tim > 10 */
+static struct iwl4965_power_vec_entry range_1[IWL_POWER_AC] = {
+ {{NOSLP, SLP_TIMEOUT(0), SLP_TIMEOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
+ {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(500),
+ SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
+ {{SLP, SLP_TIMEOUT(200), SLP_TIMEOUT(300),
+ SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
+ {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(100),
+ SLP_VEC(2, 6, 9, 9, 0xFF)}, 0},
+ {{SLP, SLP_TIMEOUT(50), SLP_TIMEOUT(25), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
+ {{SLP, SLP_TIMEOUT(25), SLP_TIMEOUT(25),
+ SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
+};
+
+int iwl4965_power_init_handle(struct iwl4965_priv *priv)
+{
+ int rc = 0, i;
+ struct iwl4965_power_mgr *pow_data;
+ int size = sizeof(struct iwl4965_power_vec_entry) * IWL_POWER_AC;
+ u16 pci_pm;
+
+ IWL_DEBUG_POWER("Initialize power \n");
+
+ pow_data = &(priv->power_data);
+
+ memset(pow_data, 0, sizeof(*pow_data));
+
+ pow_data->active_index = IWL_POWER_RANGE_0;
+ pow_data->dtim_val = 0xffff;
+
+ memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
+ memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
+
+ rc = pci_read_config_word(priv->pci_dev, PCI_LINK_CTRL, &pci_pm);
+ if (rc != 0)
+ return 0;
+ else {
+ struct iwl4965_powertable_cmd *cmd;
+
+ IWL_DEBUG_POWER("adjust power command flags\n");
+
+ for (i = 0; i < IWL_POWER_AC; i++) {
+ cmd = &pow_data->pwr_range_0[i].cmd;
+
+ if (pci_pm & 0x1)
+ cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
+ else
+ cmd->flags |= IWL_POWER_PCI_PM_MSK;
+ }
+ }
+ return rc;
+}
+
+static int iwl4965_update_power_cmd(struct iwl4965_priv *priv,
+ struct iwl4965_powertable_cmd *cmd, u32 mode)
+{
+ int rc = 0, i;
+ u8 skip;
+ u32 max_sleep = 0;
+ struct iwl4965_power_vec_entry *range;
+ u8 period = 0;
+ struct iwl4965_power_mgr *pow_data;
+
+ if (mode > IWL_POWER_INDEX_5) {
+ IWL_DEBUG_POWER("Error invalid power mode \n");
+ return -1;
+ }
+ pow_data = &(priv->power_data);
+
+ if (pow_data->active_index == IWL_POWER_RANGE_0)
+ range = &pow_data->pwr_range_0[0];
+ else
+ range = &pow_data->pwr_range_1[1];
+
+ memcpy(cmd, &range[mode].cmd, sizeof(struct iwl4965_powertable_cmd));
+
+#ifdef IWL_MAC80211_DISABLE
+ if (priv->assoc_network != NULL) {
+ unsigned long flags;
+
+ period = priv->assoc_network->tim.tim_period;
+ }
+#endif /*IWL_MAC80211_DISABLE */
+ skip = range[mode].no_dtim;
+
+ if (period == 0) {
+ period = 1;
+ skip = 0;
+ }
+
+ if (skip == 0) {
+ max_sleep = period;
+ cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
+ } else {
+ __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
+ max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
+ cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
+ }
+
+ for (i = 0; i < IWL_POWER_VEC_SIZE; i++) {
+ if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
+ cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
+ }
+
+ IWL_DEBUG_POWER("Flags value = 0x%08X\n", cmd->flags);
+ IWL_DEBUG_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
+ IWL_DEBUG_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
+ IWL_DEBUG_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
+ le32_to_cpu(cmd->sleep_interval[0]),
+ le32_to_cpu(cmd->sleep_interval[1]),
+ le32_to_cpu(cmd->sleep_interval[2]),
+ le32_to_cpu(cmd->sleep_interval[3]),
+ le32_to_cpu(cmd->sleep_interval[4]));
+
+ return rc;
+}
+
+static int iwl4965_send_power_mode(struct iwl4965_priv *priv, u32 mode)
+{
+ u32 uninitialized_var(final_mode);
+ int rc;
+ struct iwl4965_powertable_cmd cmd;
+
+ /* If on battery, set to 3,
+ * if plugged into AC power, set to CAM ("continuously aware mode"),
+ * else user level */
+ switch (mode) {
+ case IWL_POWER_BATTERY:
+ final_mode = IWL_POWER_INDEX_3;
+ break;
+ case IWL_POWER_AC:
+ final_mode = IWL_POWER_MODE_CAM;
+ break;
+ default:
+ final_mode = mode;
+ break;
+ }
+
+ cmd.keep_alive_beacons = 0;
+
+ iwl4965_update_power_cmd(priv, &cmd, final_mode);
+
+ rc = iwl4965_send_cmd_pdu(priv, POWER_TABLE_CMD, sizeof(cmd), &cmd);
+
+ if (final_mode == IWL_POWER_MODE_CAM)
+ clear_bit(STATUS_POWER_PMI, &priv->status);
+ else
+ set_bit(STATUS_POWER_PMI, &priv->status);
+
+ return rc;
+}
+
+int iwl4965_is_network_packet(struct iwl4965_priv *priv, struct ieee80211_hdr *header)
+{
+ /* Filter incoming packets to determine if they are targeted toward
+ * this network, discarding packets coming from ourselves */
+ switch (priv->iw_mode) {
+ case IEEE80211_IF_TYPE_IBSS: /* Header: Dest. | Source | BSSID */
+ /* packets from our adapter are dropped (echo) */
+ if (!compare_ether_addr(header->addr2, priv->mac_addr))
+ return 0;
+ /* {broad,multi}cast packets to our IBSS go through */
+ if (is_multicast_ether_addr(header->addr1))
+ return !compare_ether_addr(header->addr3, priv->bssid);
+ /* packets to our adapter go through */
+ return !compare_ether_addr(header->addr1, priv->mac_addr);
+ case IEEE80211_IF_TYPE_STA: /* Header: Dest. | AP{BSSID} | Source */
+ /* packets from our adapter are dropped (echo) */
+ if (!compare_ether_addr(header->addr3, priv->mac_addr))
+ return 0;
+ /* {broad,multi}cast packets to our BSS go through */
+ if (is_multicast_ether_addr(header->addr1))
+ return !compare_ether_addr(header->addr2, priv->bssid);
+ /* packets to our adapter go through */
+ return !compare_ether_addr(header->addr1, priv->mac_addr);
+ }
+
+ return 1;
+}
+
+#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
+
+static const char *iwl4965_get_tx_fail_reason(u32 status)
+{
+ switch (status & TX_STATUS_MSK) {
+ case TX_STATUS_SUCCESS:
+ return "SUCCESS";
+ TX_STATUS_ENTRY(SHORT_LIMIT);
+ TX_STATUS_ENTRY(LONG_LIMIT);
+ TX_STATUS_ENTRY(FIFO_UNDERRUN);
+ TX_STATUS_ENTRY(MGMNT_ABORT);
+ TX_STATUS_ENTRY(NEXT_FRAG);
+ TX_STATUS_ENTRY(LIFE_EXPIRE);
+ TX_STATUS_ENTRY(DEST_PS);
+ TX_STATUS_ENTRY(ABORTED);
+ TX_STATUS_ENTRY(BT_RETRY);
+ TX_STATUS_ENTRY(STA_INVALID);
+ TX_STATUS_ENTRY(FRAG_DROPPED);
+ TX_STATUS_ENTRY(TID_DISABLE);
+ TX_STATUS_ENTRY(FRAME_FLUSHED);
+ TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL);
+ TX_STATUS_ENTRY(TX_LOCKED);
+ TX_STATUS_ENTRY(NO_BEACON_ON_RADAR);
+ }
+
+ return "UNKNOWN";
+}
+
+/**
+ * iwl4965_scan_cancel - Cancel any currently executing HW scan
+ *
+ * NOTE: priv->mutex is not required before calling this function
+ */
+static int iwl4965_scan_cancel(struct iwl4965_priv *priv)
+{
+ if (!test_bit(STATUS_SCAN_HW, &priv->status)) {
+ clear_bit(STATUS_SCANNING, &priv->status);
+ return 0;
+ }
+
+ if (test_bit(STATUS_SCANNING, &priv->status)) {
+ if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+ IWL_DEBUG_SCAN("Queuing scan abort.\n");
+ set_bit(STATUS_SCAN_ABORTING, &priv->status);
+ queue_work(priv->workqueue, &priv->abort_scan);
+
+ } else
+ IWL_DEBUG_SCAN("Scan abort already in progress.\n");
+
+ return test_bit(STATUS_SCANNING, &priv->status);
+ }
+
+ return 0;
+}
+
+/**
+ * iwl4965_scan_cancel_timeout - Cancel any currently executing HW scan
+ * @ms: amount of time to wait (in milliseconds) for scan to abort
+ *
+ * NOTE: priv->mutex must be held before calling this function
+ */
+static int iwl4965_scan_cancel_timeout(struct iwl4965_priv *priv, unsigned long ms)
+{
+ unsigned long now = jiffies;
+ int ret;
+
+ ret = iwl4965_scan_cancel(priv);
+ if (ret && ms) {
+ mutex_unlock(&priv->mutex);
+ while (!time_after(jiffies, now + msecs_to_jiffies(ms)) &&
+ test_bit(STATUS_SCANNING, &priv->status))
+ msleep(1);
+ mutex_lock(&priv->mutex);
+
+ return test_bit(STATUS_SCANNING, &priv->status);
+ }
+
+ return ret;
+}
+
+static void iwl4965_sequence_reset(struct iwl4965_priv *priv)
+{
+ /* Reset ieee stats */
+
+ /* We don't reset the net_device_stats (ieee->stats) on
+ * re-association */
+
+ priv->last_seq_num = -1;
+ priv->last_frag_num = -1;
+ priv->last_packet_time = 0;
+
+ iwl4965_scan_cancel(priv);
+}
+
+#define MAX_UCODE_BEACON_INTERVAL 4096
+#define INTEL_CONN_LISTEN_INTERVAL __constant_cpu_to_le16(0xA)
+
+static __le16 iwl4965_adjust_beacon_interval(u16 beacon_val)
+{
+ u16 new_val = 0;
+ u16 beacon_factor = 0;
+
+ beacon_factor =
+ (beacon_val + MAX_UCODE_BEACON_INTERVAL)
+ / MAX_UCODE_BEACON_INTERVAL;
+ new_val = beacon_val / beacon_factor;
+
+ return cpu_to_le16(new_val);
+}
+
+static void iwl4965_setup_rxon_timing(struct iwl4965_priv *priv)
+{
+ u64 interval_tm_unit;
+ u64 tsf, result;
+ unsigned long flags;
+ struct ieee80211_conf *conf = NULL;
+ u16 beacon_int = 0;
+
+ conf = ieee80211_get_hw_conf(priv->hw);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->rxon_timing.timestamp.dw[1] = cpu_to_le32(priv->timestamp1);
+ priv->rxon_timing.timestamp.dw[0] = cpu_to_le32(priv->timestamp0);
+
+ priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
+
+ tsf = priv->timestamp1;
+ tsf = ((tsf << 32) | priv->timestamp0);
+
+ beacon_int = priv->beacon_int;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_STA) {
+ if (beacon_int == 0) {
+ priv->rxon_timing.beacon_interval = cpu_to_le16(100);
+ priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
+ } else {
+ priv->rxon_timing.beacon_interval =
+ cpu_to_le16(beacon_int);
+ priv->rxon_timing.beacon_interval =
+ iwl4965_adjust_beacon_interval(
+ le16_to_cpu(priv->rxon_timing.beacon_interval));
+ }
+
+ priv->rxon_timing.atim_window = 0;
+ } else {
+ priv->rxon_timing.beacon_interval =
+ iwl4965_adjust_beacon_interval(conf->beacon_int);
+ /* TODO: we need to get atim_window from upper stack
+ * for now we set to 0 */
+ priv->rxon_timing.atim_window = 0;
+ }
+
+ interval_tm_unit =
+ (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
+ result = do_div(tsf, interval_tm_unit);
+ priv->rxon_timing.beacon_init_val =
+ cpu_to_le32((u32) ((u64) interval_tm_unit - result));
+
+ IWL_DEBUG_ASSOC
+ ("beacon interval %d beacon timer %d beacon tim %d\n",
+ le16_to_cpu(priv->rxon_timing.beacon_interval),
+ le32_to_cpu(priv->rxon_timing.beacon_init_val),
+ le16_to_cpu(priv->rxon_timing.atim_window));
+}
+
+static int iwl4965_scan_initiate(struct iwl4965_priv *priv)
+{
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+ IWL_ERROR("APs don't scan.\n");
+ return 0;
+ }
+
+ if (!iwl4965_is_ready_rf(priv)) {
+ IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
+ return -EIO;
+ }
+
+ if (test_bit(STATUS_SCANNING, &priv->status)) {
+ IWL_DEBUG_SCAN("Scan already in progress.\n");
+ return -EAGAIN;
+ }
+
+ if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+ IWL_DEBUG_SCAN("Scan request while abort pending. "
+ "Queuing.\n");
+ return -EAGAIN;
+ }
+
+ IWL_DEBUG_INFO("Starting scan...\n");
+ priv->scan_bands = 2;
+ set_bit(STATUS_SCANNING, &priv->status);
+ priv->scan_start = jiffies;
+ priv->scan_pass_start = priv->scan_start;
+
+ queue_work(priv->workqueue, &priv->request_scan);
+
+ return 0;
+}
+
+static int iwl4965_set_rxon_hwcrypto(struct iwl4965_priv *priv, int hw_decrypt)
+{
+ struct iwl4965_rxon_cmd *rxon = &priv->staging_rxon;
+
+ if (hw_decrypt)
+ rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
+ else
+ rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
+
+ return 0;
+}
+
+static void iwl4965_set_flags_for_phymode(struct iwl4965_priv *priv, u8 phymode)
+{
+ if (phymode == MODE_IEEE80211A) {
+ priv->staging_rxon.flags &=
+ ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
+ | RXON_FLG_CCK_MSK);
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ } else {
+ /* Copied from iwl4965_bg_post_associate() */
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
+ priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
+ priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
+ }
+}
+
+/*
+ * initialize rxon structure with default values from eeprom
+ */
+static void iwl4965_connection_init_rx_config(struct iwl4965_priv *priv)
+{
+ const struct iwl4965_channel_info *ch_info;
+
+ memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
+
+ switch (priv->iw_mode) {
+ case IEEE80211_IF_TYPE_AP:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
+ break;
+
+ case IEEE80211_IF_TYPE_STA:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
+ priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
+
+ case IEEE80211_IF_TYPE_IBSS:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
+ priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
+ priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
+ RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
+
+ case IEEE80211_IF_TYPE_MNTR:
+ priv->staging_rxon.dev_type = RXON_DEV_TYPE_SNIFFER;
+ priv->staging_rxon.filter_flags = RXON_FILTER_PROMISC_MSK |
+ RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
+ }
+
+#if 0
+ /* TODO: Figure out when short_preamble would be set and cache from
+ * that */
+ if (!hw_to_local(priv->hw)->short_preamble)
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+#endif
+
+ ch_info = iwl4965_get_channel_info(priv, priv->phymode,
+ le16_to_cpu(priv->staging_rxon.channel));
+
+ if (!ch_info)
+ ch_info = &priv->channel_info[0];
+
+ /*
+ * in some case A channels are all non IBSS
+ * in this case force B/G channel
+ */
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
+ !(is_channel_ibss(ch_info)))
+ ch_info = &priv->channel_info[0];
+
+ priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
+ if (is_channel_a_band(ch_info))
+ priv->phymode = MODE_IEEE80211A;
+ else
+ priv->phymode = MODE_IEEE80211G;
+
+ iwl4965_set_flags_for_phymode(priv, priv->phymode);
+
+ priv->staging_rxon.ofdm_basic_rates =
+ (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+ priv->staging_rxon.cck_basic_rates =
+ (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
+
+ priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
+ RXON_FLG_CHANNEL_MODE_PURE_40_MSK);
+ memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
+ memcpy(priv->staging_rxon.wlap_bssid_addr, priv->mac_addr, ETH_ALEN);
+ priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
+ priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
+ iwl4965_set_rxon_chain(priv);
+}
+
+static int iwl4965_set_mode(struct iwl4965_priv *priv, int mode)
+{
+ if (mode == IEEE80211_IF_TYPE_IBSS) {
+ const struct iwl4965_channel_info *ch_info;
+
+ ch_info = iwl4965_get_channel_info(priv,
+ priv->phymode,
+ le16_to_cpu(priv->staging_rxon.channel));
+
+ if (!ch_info || !is_channel_ibss(ch_info)) {
+ IWL_ERROR("channel %d not IBSS channel\n",
+ le16_to_cpu(priv->staging_rxon.channel));
+ return -EINVAL;
+ }
+ }
+
+ priv->iw_mode = mode;
+
+ iwl4965_connection_init_rx_config(priv);
+ memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
+
+ iwl4965_clear_stations_table(priv);
+
+ /* dont commit rxon if rf-kill is on*/
+ if (!iwl4965_is_ready_rf(priv))
+ return -EAGAIN;
+
+ cancel_delayed_work(&priv->scan_check);
+ if (iwl4965_scan_cancel_timeout(priv, 100)) {
+ IWL_WARNING("Aborted scan still in progress after 100ms\n");
+ IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
+ return -EAGAIN;
+ }
+
+ iwl4965_commit_rxon(priv);
+
+ return 0;
+}
+
+static void iwl4965_build_tx_cmd_hwcrypto(struct iwl4965_priv *priv,
+ struct ieee80211_tx_control *ctl,
+ struct iwl4965_cmd *cmd,
+ struct sk_buff *skb_frag,
+ int last_frag)
+{
+ struct iwl4965_hw_key *keyinfo = &priv->stations[ctl->key_idx].keyinfo;
+
+ switch (keyinfo->alg) {
+ case ALG_CCMP:
+ cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM;
+ memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen);
+ IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
+ break;
+
+ case ALG_TKIP:
+#if 0
+ cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP;
+
+ if (last_frag)
+ memcpy(cmd->cmd.tx.tkip_mic.byte, skb_frag->tail - 8,
+ 8);
+ else
+ memset(cmd->cmd.tx.tkip_mic.byte, 0, 8);
+#endif
+ break;
+
+ case ALG_WEP:
+ cmd->cmd.tx.sec_ctl = TX_CMD_SEC_WEP |
+ (ctl->key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT;
+
+ if (keyinfo->keylen == 13)
+ cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128;
+
+ memcpy(&cmd->cmd.tx.key[3], keyinfo->key, keyinfo->keylen);
+
+ IWL_DEBUG_TX("Configuring packet for WEP encryption "
+ "with key %d\n", ctl->key_idx);
+ break;
+
+ default:
+ printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg);
+ break;
+ }
+}
+
+/*
+ * handle build REPLY_TX command notification.
+ */
+static void iwl4965_build_tx_cmd_basic(struct iwl4965_priv *priv,
+ struct iwl4965_cmd *cmd,
+ struct ieee80211_tx_control *ctrl,
+ struct ieee80211_hdr *hdr,
+ int is_unicast, u8 std_id)
+{
+ __le16 *qc;
+ u16 fc = le16_to_cpu(hdr->frame_control);
+ __le32 tx_flags = cmd->cmd.tx.tx_flags;
+
+ cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+ if (!(ctrl->flags & IEEE80211_TXCTL_NO_ACK)) {
+ tx_flags |= TX_CMD_FLG_ACK_MSK;
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
+ tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+ if (ieee80211_is_probe_response(fc) &&
+ !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
+ tx_flags |= TX_CMD_FLG_TSF_MSK;
+ } else {
+ tx_flags &= (~TX_CMD_FLG_ACK_MSK);
+ tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+ }
+
+ cmd->cmd.tx.sta_id = std_id;
+ if (ieee80211_get_morefrag(hdr))
+ tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
+
+ qc = ieee80211_get_qos_ctrl(hdr);
+ if (qc) {
+ cmd->cmd.tx.tid_tspec = (u8) (le16_to_cpu(*qc) & 0xf);
+ tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
+ } else
+ tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+
+ if (ctrl->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
+ tx_flags |= TX_CMD_FLG_RTS_MSK;
+ tx_flags &= ~TX_CMD_FLG_CTS_MSK;
+ } else if (ctrl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
+ tx_flags &= ~TX_CMD_FLG_RTS_MSK;
+ tx_flags |= TX_CMD_FLG_CTS_MSK;
+ }
+
+ if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
+ tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
+
+ tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
+ if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ ||
+ (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ)
+ cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3);
+ else
+ cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2);
+ } else
+ cmd->cmd.tx.timeout.pm_frame_timeout = 0;
+
+ cmd->cmd.tx.driver_txop = 0;
+ cmd->cmd.tx.tx_flags = tx_flags;
+ cmd->cmd.tx.next_frame_len = 0;
+}
+
+/**
+ * iwl4965_get_sta_id - Find station's index within station table
+ *
+ * If new IBSS station, create new entry in station table
+ */
+static int iwl4965_get_sta_id(struct iwl4965_priv *priv,
+ struct ieee80211_hdr *hdr)
+{
+ int sta_id;
+ u16 fc = le16_to_cpu(hdr->frame_control);
+ DECLARE_MAC_BUF(mac);
+
+ /* If this frame is broadcast or management, use broadcast station id */
+ if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
+ is_multicast_ether_addr(hdr->addr1))
+ return priv->hw_setting.bcast_sta_id;
+
+ switch (priv->iw_mode) {
+
+ /* If we are a client station in a BSS network, use the special
+ * AP station entry (that's the only station we communicate with) */
+ case IEEE80211_IF_TYPE_STA:
+ return IWL_AP_ID;
+
+ /* If we are an AP, then find the station, or use BCAST */
+ case IEEE80211_IF_TYPE_AP:
+ sta_id = iwl4965_hw_find_station(priv, hdr->addr1);
+ if (sta_id != IWL_INVALID_STATION)
+ return sta_id;
+ return priv->hw_setting.bcast_sta_id;
+
+ /* If this frame is going out to an IBSS network, find the station,
+ * or create a new station table entry */
+ case IEEE80211_IF_TYPE_IBSS:
+ sta_id = iwl4965_hw_find_station(priv, hdr->addr1);
+ if (sta_id != IWL_INVALID_STATION)
+ return sta_id;
+
+ /* Create new station table entry */
+ sta_id = iwl4965_add_station_flags(priv, hdr->addr1,
+ 0, CMD_ASYNC, NULL);
+
+ if (sta_id != IWL_INVALID_STATION)
+ return sta_id;
+
+ IWL_DEBUG_DROP("Station %s not in station map. "
+ "Defaulting to broadcast...\n",
+ print_mac(mac, hdr->addr1));
+ iwl4965_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
+ return priv->hw_setting.bcast_sta_id;
+
+ default:
+ IWL_WARNING("Unknown mode of operation: %d", priv->iw_mode);
+ return priv->hw_setting.bcast_sta_id;
+ }
+}
+
+/*
+ * start REPLY_TX command process
+ */
+static int iwl4965_tx_skb(struct iwl4965_priv *priv,
+ struct sk_buff *skb, struct ieee80211_tx_control *ctl)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ struct iwl4965_tfd_frame *tfd;
+ u32 *control_flags;
+ int txq_id = ctl->queue;
+ struct iwl4965_tx_queue *txq = NULL;
+ struct iwl4965_queue *q = NULL;
+ dma_addr_t phys_addr;
+ dma_addr_t txcmd_phys;
+ struct iwl4965_cmd *out_cmd = NULL;
+ u16 len, idx, len_org;
+ u8 id, hdr_len, unicast;
+ u8 sta_id;
+ u16 seq_number = 0;
+ u16 fc;
+ __le16 *qc;
+ u8 wait_write_ptr = 0;
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (iwl4965_is_rfkill(priv)) {
+ IWL_DEBUG_DROP("Dropping - RF KILL\n");
+ goto drop_unlock;
+ }
+
+ if (!priv->interface_id) {
+ IWL_DEBUG_DROP("Dropping - !priv->interface_id\n");
+ goto drop_unlock;
+ }
+
+ if ((ctl->tx_rate & 0xFF) == IWL_INVALID_RATE) {
+ IWL_ERROR("ERROR: No TX rate available.\n");
+ goto drop_unlock;
+ }
+
+ unicast = !is_multicast_ether_addr(hdr->addr1);
+ id = 0;
+
+ fc = le16_to_cpu(hdr->frame_control);
+
+#ifdef CONFIG_IWL4965_DEBUG
+ if (ieee80211_is_auth(fc))
+ IWL_DEBUG_TX("Sending AUTH frame\n");
+ else if (ieee80211_is_assoc_request(fc))
+ IWL_DEBUG_TX("Sending ASSOC frame\n");
+ else if (ieee80211_is_reassoc_request(fc))
+ IWL_DEBUG_TX("Sending REASSOC frame\n");
+#endif
+
+ /* drop all data frame if we are not associated */
+ if (!iwl4965_is_associated(priv) && !priv->assoc_id &&
+ ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
+ IWL_DEBUG_DROP("Dropping - !iwl4965_is_associated\n");
+ goto drop_unlock;
+ }
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ hdr_len = ieee80211_get_hdrlen(fc);
+
+ /* Find (or create) index into station table for destination station */
+ sta_id = iwl4965_get_sta_id(priv, hdr);
+ if (sta_id == IWL_INVALID_STATION) {
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
+ print_mac(mac, hdr->addr1));
+ goto drop;
+ }
+
+ IWL_DEBUG_RATE("station Id %d\n", sta_id);
+
+ qc = ieee80211_get_qos_ctrl(hdr);
+ if (qc) {
+ u8 tid = (u8)(le16_to_cpu(*qc) & 0xf);
+ seq_number = priv->stations[sta_id].tid[tid].seq_number &
+ IEEE80211_SCTL_SEQ;
+ hdr->seq_ctrl = cpu_to_le16(seq_number) |
+ (hdr->seq_ctrl &
+ __constant_cpu_to_le16(IEEE80211_SCTL_FRAG));
+ seq_number += 0x10;
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+ /* aggregation is on for this <sta,tid> */
+ if (ctl->flags & IEEE80211_TXCTL_HT_MPDU_AGG)
+ txq_id = priv->stations[sta_id].tid[tid].agg.txq_id;
+#endif /* CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
+ }
+
+ /* Descriptor for chosen Tx queue */
+ txq = &priv->txq[txq_id];
+ q = &txq->q;
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ /* Set up first empty TFD within this queue's circular TFD buffer */
+ tfd = &txq->bd[q->write_ptr];
+ memset(tfd, 0, sizeof(*tfd));
+ control_flags = (u32 *) tfd;
+ idx = get_cmd_index(q, q->write_ptr, 0);
+
+ /* Set up driver data for this TFD */
+ memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl4965_tx_info));
+ txq->txb[q->write_ptr].skb[0] = skb;
+ memcpy(&(txq->txb[q->write_ptr].status.control),
+ ctl, sizeof(struct ieee80211_tx_control));
+
+ /* Set up first empty entry in queue's array of Tx/cmd buffers */
+ out_cmd = &txq->cmd[idx];
+ memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
+ memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx));
+
+ /*
+ * Set up the Tx-command (not MAC!) header.
+ * Store the chosen Tx queue and TFD index within the sequence field;
+ * after Tx, uCode's Tx response will return this value so driver can
+ * locate the frame within the tx queue and do post-tx processing.
+ */
+ out_cmd->hdr.cmd = REPLY_TX;
+ out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
+ INDEX_TO_SEQ(q->write_ptr)));
+
+ /* Copy MAC header from skb into command buffer */
+ memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len);
+
+ /*
+ * Use the first empty entry in this queue's command buffer array
+ * to contain the Tx command and MAC header concatenated together
+ * (payload data will be in another buffer).
+ * Size of this varies, due to varying MAC header length.
+ * If end is not dword aligned, we'll have 2 extra bytes at the end
+ * of the MAC header (device reads on dword boundaries).
+ * We'll tell device about this padding later.
+ */
+ len = priv->hw_setting.tx_cmd_len +
+ sizeof(struct iwl4965_cmd_header) + hdr_len;
+
+ len_org = len;
+ len = (len + 3) & ~3;
+
+ if (len_org != len)
+ len_org = 1;
+ else
+ len_org = 0;
+
+ /* Physical address of this Tx command's header (not MAC header!),
+ * within command buffer array. */
+ txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl4965_cmd) * idx +
+ offsetof(struct iwl4965_cmd, hdr);
+
+ /* Add buffer containing Tx command and MAC(!) header to TFD's
+ * first entry */
+ iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len);
+
+ if (!(ctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
+ iwl4965_build_tx_cmd_hwcrypto(priv, ctl, out_cmd, skb, 0);
+
+ /* Set up TFD's 2nd entry to point directly to remainder of skb,
+ * if any (802.11 null frames have no payload). */
+ len = skb->len - hdr_len;
+ if (len) {
+ phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
+ len, PCI_DMA_TODEVICE);
+ iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len);
+ }
+
+ /* Tell 4965 about any 2-byte padding after MAC header */
+ if (len_org)
+ out_cmd->cmd.tx.tx_flags |= TX_CMD_FLG_MH_PAD_MSK;
+
+ /* Total # bytes to be transmitted */
+ len = (u16)skb->len;
+ out_cmd->cmd.tx.len = cpu_to_le16(len);
+
+ /* TODO need this for burst mode later on */
+ iwl4965_build_tx_cmd_basic(priv, out_cmd, ctl, hdr, unicast, sta_id);
+
+ /* set is_hcca to 0; it probably will never be implemented */
+ iwl4965_hw_build_tx_cmd_rate(priv, out_cmd, ctl, hdr, sta_id, 0);
+
+ iwl4965_tx_cmd(priv, out_cmd, sta_id, txcmd_phys,
+ hdr, hdr_len, ctl, NULL);
+
+ if (!ieee80211_get_morefrag(hdr)) {
+ txq->need_update = 1;
+ if (qc) {
+ u8 tid = (u8)(le16_to_cpu(*qc) & 0xf);
+ priv->stations[sta_id].tid[tid].seq_number = seq_number;
+ }
+ } else {
+ wait_write_ptr = 1;
+ txq->need_update = 0;
+ }
+
+ iwl4965_print_hex_dump(IWL_DL_TX, out_cmd->cmd.payload,
+ sizeof(out_cmd->cmd.tx));
+
+ iwl4965_print_hex_dump(IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr,
+ ieee80211_get_hdrlen(fc));
+
+ /* Set up entry for this TFD in Tx byte-count array */
+ iwl4965_tx_queue_update_wr_ptr(priv, txq, len);
+
+ /* Tell device the write index *just past* this latest filled TFD */
+ q->write_ptr = iwl4965_queue_inc_wrap(q->write_ptr, q->n_bd);
+ rc = iwl4965_tx_queue_update_write_ptr(priv, txq);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (rc)
+ return rc;
+
+ if ((iwl4965_queue_space(q) < q->high_mark)
+ && priv->mac80211_registered) {
+ if (wait_write_ptr) {
+ spin_lock_irqsave(&priv->lock, flags);
+ txq->need_update = 1;
+ iwl4965_tx_queue_update_write_ptr(priv, txq);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ }
+
+ ieee80211_stop_queue(priv->hw, ctl->queue);
+ }
+
+ return 0;
+
+drop_unlock:
+ spin_unlock_irqrestore(&priv->lock, flags);
+drop:
+ return -1;
+}
+
+static void iwl4965_set_rate(struct iwl4965_priv *priv)
+{
+ const struct ieee80211_hw_mode *hw = NULL;
+ struct ieee80211_rate *rate;
+ int i;
+
+ hw = iwl4965_get_hw_mode(priv, priv->phymode);
+ if (!hw) {
+ IWL_ERROR("Failed to set rate: unable to get hw mode\n");
+ return;
+ }
+
+ priv->active_rate = 0;
+ priv->active_rate_basic = 0;
+
+ IWL_DEBUG_RATE("Setting rates for 802.11%c\n",
+ hw->mode == MODE_IEEE80211A ?
+ 'a' : ((hw->mode == MODE_IEEE80211B) ? 'b' : 'g'));
+
+ for (i = 0; i < hw->num_rates; i++) {
+ rate = &(hw->rates[i]);
+ if ((rate->val < IWL_RATE_COUNT) &&
+ (rate->flags & IEEE80211_RATE_SUPPORTED)) {
+ IWL_DEBUG_RATE("Adding rate index %d (plcp %d)%s\n",
+ rate->val, iwl4965_rates[rate->val].plcp,
+ (rate->flags & IEEE80211_RATE_BASIC) ?
+ "*" : "");
+ priv->active_rate |= (1 << rate->val);
+ if (rate->flags & IEEE80211_RATE_BASIC)
+ priv->active_rate_basic |= (1 << rate->val);
+ } else
+ IWL_DEBUG_RATE("Not adding rate %d (plcp %d)\n",
+ rate->val, iwl4965_rates[rate->val].plcp);
+ }
+
+ IWL_DEBUG_RATE("Set active_rate = %0x, active_rate_basic = %0x\n",
+ priv->active_rate, priv->active_rate_basic);
+
+ /*
+ * If a basic rate is configured, then use it (adding IWL_RATE_1M_MASK)
+ * otherwise set it to the default of all CCK rates and 6, 12, 24 for
+ * OFDM
+ */
+ if (priv->active_rate_basic & IWL_CCK_BASIC_RATES_MASK)
+ priv->staging_rxon.cck_basic_rates =
+ ((priv->active_rate_basic &
+ IWL_CCK_RATES_MASK) >> IWL_FIRST_CCK_RATE) & 0xF;
+ else
+ priv->staging_rxon.cck_basic_rates =
+ (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
+
+ if (priv->active_rate_basic & IWL_OFDM_BASIC_RATES_MASK)
+ priv->staging_rxon.ofdm_basic_rates =
+ ((priv->active_rate_basic &
+ (IWL_OFDM_BASIC_RATES_MASK | IWL_RATE_6M_MASK)) >>
+ IWL_FIRST_OFDM_RATE) & 0xFF;
+ else
+ priv->staging_rxon.ofdm_basic_rates =
+ (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
+}
+
+static void iwl4965_radio_kill_sw(struct iwl4965_priv *priv, int disable_radio)
+{
+ unsigned long flags;
+
+ if (!!disable_radio == test_bit(STATUS_RF_KILL_SW, &priv->status))
+ return;
+
+ IWL_DEBUG_RF_KILL("Manual SW RF KILL set to: RADIO %s\n",
+ disable_radio ? "OFF" : "ON");
+
+ if (disable_radio) {
+ iwl4965_scan_cancel(priv);
+ /* FIXME: This is a workaround for AP */
+ if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_SET,
+ CSR_UCODE_SW_BIT_RFKILL);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ iwl4965_send_card_state(priv, CARD_STATE_CMD_DISABLE, 0);
+ set_bit(STATUS_RF_KILL_SW, &priv->status);
+ }
+ return;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+ clear_bit(STATUS_RF_KILL_SW, &priv->status);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ /* wake up ucode */
+ msleep(10);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl4965_read32(priv, CSR_UCODE_DRV_GP1);
+ if (!iwl4965_grab_nic_access(priv))
+ iwl4965_release_nic_access(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
+ IWL_DEBUG_RF_KILL("Can not turn radio back on - "
+ "disabled by HW switch\n");
+ return;
+ }
+
+ queue_work(priv->workqueue, &priv->restart);
+ return;
+}
+
+void iwl4965_set_decrypted_flag(struct iwl4965_priv *priv, struct sk_buff *skb,
+ u32 decrypt_res, struct ieee80211_rx_status *stats)
+{
+ u16 fc =
+ le16_to_cpu(((struct ieee80211_hdr *)skb->data)->frame_control);
+
+ if (priv->active_rxon.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK)
+ return;
+
+ if (!(fc & IEEE80211_FCTL_PROTECTED))
+ return;
+
+ IWL_DEBUG_RX("decrypt_res:0x%x\n", decrypt_res);
+ switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
+ case RX_RES_STATUS_SEC_TYPE_TKIP:
+ if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
+ RX_RES_STATUS_BAD_ICV_MIC)
+ stats->flag |= RX_FLAG_MMIC_ERROR;
+ case RX_RES_STATUS_SEC_TYPE_WEP:
+ case RX_RES_STATUS_SEC_TYPE_CCMP:
+ if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
+ RX_RES_STATUS_DECRYPT_OK) {
+ IWL_DEBUG_RX("hw decrypt successfully!!!\n");
+ stats->flag |= RX_FLAG_DECRYPTED;
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+void iwl4965_handle_data_packet_monitor(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb,
+ void *data, short len,
+ struct ieee80211_rx_status *stats,
+ u16 phy_flags)
+{
+ struct iwl4965_rt_rx_hdr *iwl4965_rt;
+
+ /* First cache any information we need before we overwrite
+ * the information provided in the skb from the hardware */
+ s8 signal = stats->ssi;
+ s8 noise = 0;
+ int rate = stats->rate;
+ u64 tsf = stats->mactime;
+ __le16 phy_flags_hw = cpu_to_le16(phy_flags);
+
+ /* We received data from the HW, so stop the watchdog */
+ if (len > priv->hw_setting.rx_buf_size - sizeof(*iwl4965_rt)) {
+ IWL_DEBUG_DROP("Dropping too large packet in monitor\n");
+ return;
+ }
+
+ /* copy the frame data to write after where the radiotap header goes */
+ iwl4965_rt = (void *)rxb->skb->data;
+ memmove(iwl4965_rt->payload, data, len);
+
+ iwl4965_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
+ iwl4965_rt->rt_hdr.it_pad = 0; /* always good to zero */
+
+ /* total header + data */
+ iwl4965_rt->rt_hdr.it_len = cpu_to_le16(sizeof(*iwl4965_rt));
+
+ /* Set the size of the skb to the size of the frame */
+ skb_put(rxb->skb, sizeof(*iwl4965_rt) + len);
+
+ /* Big bitfield of all the fields we provide in radiotap */
+ iwl4965_rt->rt_hdr.it_present =
+ cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) |
+ (1 << IEEE80211_RADIOTAP_FLAGS) |
+ (1 << IEEE80211_RADIOTAP_RATE) |
+ (1 << IEEE80211_RADIOTAP_CHANNEL) |
+ (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
+ (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) |
+ (1 << IEEE80211_RADIOTAP_ANTENNA));
+
+ /* Zero the flags, we'll add to them as we go */
+ iwl4965_rt->rt_flags = 0;
+
+ iwl4965_rt->rt_tsf = cpu_to_le64(tsf);
+
+ /* Convert to dBm */
+ iwl4965_rt->rt_dbmsignal = signal;
+ iwl4965_rt->rt_dbmnoise = noise;
+
+ /* Convert the channel frequency and set the flags */
+ iwl4965_rt->rt_channelMHz = cpu_to_le16(stats->freq);
+ if (!(phy_flags_hw & RX_RES_PHY_FLAGS_BAND_24_MSK))
+ iwl4965_rt->rt_chbitmask =
+ cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ));
+ else if (phy_flags_hw & RX_RES_PHY_FLAGS_MOD_CCK_MSK)
+ iwl4965_rt->rt_chbitmask =
+ cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ));
+ else /* 802.11g */
+ iwl4965_rt->rt_chbitmask =
+ cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ));
+
+ rate = iwl4965_rate_index_from_plcp(rate);
+ if (rate == -1)
+ iwl4965_rt->rt_rate = 0;
+ else
+ iwl4965_rt->rt_rate = iwl4965_rates[rate].ieee;
+
+ /* antenna number */
+ iwl4965_rt->rt_antenna =
+ le16_to_cpu(phy_flags_hw & RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4;
+
+ /* set the preamble flag if we have it */
+ if (phy_flags_hw & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
+ iwl4965_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
+
+ IWL_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len);
+
+ stats->flag |= RX_FLAG_RADIOTAP;
+ ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats);
+ rxb->skb = NULL;
+}
+
+
+#define IWL_PACKET_RETRY_TIME HZ
+
+int iwl4965_is_duplicate_packet(struct iwl4965_priv *priv, struct ieee80211_hdr *header)
+{
+ u16 sc = le16_to_cpu(header->seq_ctrl);
+ u16 seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
+ u16 frag = sc & IEEE80211_SCTL_FRAG;
+ u16 *last_seq, *last_frag;
+ unsigned long *last_time;
+
+ switch (priv->iw_mode) {
+ case IEEE80211_IF_TYPE_IBSS:{
+ struct list_head *p;
+ struct iwl4965_ibss_seq *entry = NULL;
+ u8 *mac = header->addr2;
+ int index = mac[5] & (IWL_IBSS_MAC_HASH_SIZE - 1);
+
+ __list_for_each(p, &priv->ibss_mac_hash[index]) {
+ entry = list_entry(p, struct iwl4965_ibss_seq, list);
+ if (!compare_ether_addr(entry->mac, mac))
+ break;
+ }
+ if (p == &priv->ibss_mac_hash[index]) {
+ entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
+ if (!entry) {
+ IWL_ERROR("Cannot malloc new mac entry\n");
+ return 0;
+ }
+ memcpy(entry->mac, mac, ETH_ALEN);
+ entry->seq_num = seq;
+ entry->frag_num = frag;
+ entry->packet_time = jiffies;
+ list_add(&entry->list, &priv->ibss_mac_hash[index]);
+ return 0;
+ }
+ last_seq = &entry->seq_num;
+ last_frag = &entry->frag_num;
+ last_time = &entry->packet_time;
+ break;
+ }
+ case IEEE80211_IF_TYPE_STA:
+ last_seq = &priv->last_seq_num;
+ last_frag = &priv->last_frag_num;
+ last_time = &priv->last_packet_time;
+ break;
+ default:
+ return 0;
+ }
+ if ((*last_seq == seq) &&
+ time_after(*last_time + IWL_PACKET_RETRY_TIME, jiffies)) {
+ if (*last_frag == frag)
+ goto drop;
+ if (*last_frag + 1 != frag)
+ /* out-of-order fragment */
+ goto drop;
+ } else
+ *last_seq = seq;
+
+ *last_frag = frag;
+ *last_time = jiffies;
+ return 0;
+
+ drop:
+ return 1;
+}
+
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+
+#include "iwl-spectrum.h"
+
+#define BEACON_TIME_MASK_LOW 0x00FFFFFF
+#define BEACON_TIME_MASK_HIGH 0xFF000000
+#define TIME_UNIT 1024
+
+/*
+ * extended beacon time format
+ * time in usec will be changed into a 32-bit value in 8:24 format
+ * the high 1 byte is the beacon counts
+ * the lower 3 bytes is the time in usec within one beacon interval
+ */
+
+static u32 iwl4965_usecs_to_beacons(u32 usec, u32 beacon_interval)
+{
+ u32 quot;
+ u32 rem;
+ u32 interval = beacon_interval * 1024;
+
+ if (!interval || !usec)
+ return 0;
+
+ quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
+ rem = (usec % interval) & BEACON_TIME_MASK_LOW;
+
+ return (quot << 24) + rem;
+}
+
+/* base is usually what we get from ucode with each received frame,
+ * the same as HW timer counter counting down
+ */
+
+static __le32 iwl4965_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
+{
+ u32 base_low = base & BEACON_TIME_MASK_LOW;
+ u32 addon_low = addon & BEACON_TIME_MASK_LOW;
+ u32 interval = beacon_interval * TIME_UNIT;
+ u32 res = (base & BEACON_TIME_MASK_HIGH) +
+ (addon & BEACON_TIME_MASK_HIGH);
+
+ if (base_low > addon_low)
+ res += base_low - addon_low;
+ else if (base_low < addon_low) {
+ res += interval + base_low - addon_low;
+ res += (1 << 24);
+ } else
+ res += (1 << 24);
+
+ return cpu_to_le32(res);
+}
+
+static int iwl4965_get_measurement(struct iwl4965_priv *priv,
+ struct ieee80211_measurement_params *params,
+ u8 type)
+{
+ struct iwl4965_spectrum_cmd spectrum;
+ struct iwl4965_rx_packet *res;
+ struct iwl4965_host_cmd cmd = {
+ .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
+ .data = (void *)&spectrum,
+ .meta.flags = CMD_WANT_SKB,
+ };
+ u32 add_time = le64_to_cpu(params->start_time);
+ int rc;
+ int spectrum_resp_status;
+ int duration = le16_to_cpu(params->duration);
+
+ if (iwl4965_is_associated(priv))
+ add_time =
+ iwl4965_usecs_to_beacons(
+ le64_to_cpu(params->start_time) - priv->last_tsf,
+ le16_to_cpu(priv->rxon_timing.beacon_interval));
+
+ memset(&spectrum, 0, sizeof(spectrum));
+
+ spectrum.channel_count = cpu_to_le16(1);
+ spectrum.flags =
+ RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
+ spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
+ cmd.len = sizeof(spectrum);
+ spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
+
+ if (iwl4965_is_associated(priv))
+ spectrum.start_time =
+ iwl4965_add_beacon_time(priv->last_beacon_time,
+ add_time,
+ le16_to_cpu(priv->rxon_timing.beacon_interval));
+ else
+ spectrum.start_time = 0;
+
+ spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
+ spectrum.channels[0].channel = params->channel;
+ spectrum.channels[0].type = type;
+ if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
+ spectrum.flags |= RXON_FLG_BAND_24G_MSK |
+ RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
+
+ rc = iwl4965_send_cmd_sync(priv, &cmd);
+ if (rc)
+ return rc;
+
+ res = (struct iwl4965_rx_packet *)cmd.meta.u.skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERROR("Bad return from REPLY_RX_ON_ASSOC command\n");
+ rc = -EIO;
+ }
+
+ spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
+ switch (spectrum_resp_status) {
+ case 0: /* Command will be handled */
+ if (res->u.spectrum.id != 0xff) {
+ IWL_DEBUG_INFO
+ ("Replaced existing measurement: %d\n",
+ res->u.spectrum.id);
+ priv->measurement_status &= ~MEASUREMENT_READY;
+ }
+ priv->measurement_status |= MEASUREMENT_ACTIVE;
+ rc = 0;
+ break;
+
+ case 1: /* Command will not be handled */
+ rc = -EAGAIN;
+ break;
+ }
+
+ dev_kfree_skb_any(cmd.meta.u.skb);
+
+ return rc;
+}
+#endif
+
+static void iwl4965_txstatus_to_ieee(struct iwl4965_priv *priv,
+ struct iwl4965_tx_info *tx_sta)
+{
+
+ tx_sta->status.ack_signal = 0;
+ tx_sta->status.excessive_retries = 0;
+ tx_sta->status.queue_length = 0;
+ tx_sta->status.queue_number = 0;
+
+ if (in_interrupt())
+ ieee80211_tx_status_irqsafe(priv->hw,
+ tx_sta->skb[0], &(tx_sta->status));
+ else
+ ieee80211_tx_status(priv->hw,
+ tx_sta->skb[0], &(tx_sta->status));
+
+ tx_sta->skb[0] = NULL;
+}
+
+/**
+ * iwl4965_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
+ *
+ * When FW advances 'R' index, all entries between old and new 'R' index
+ * need to be reclaimed. As result, some free space forms. If there is
+ * enough free space (> low mark), wake the stack that feeds us.
+ */
+int iwl4965_tx_queue_reclaim(struct iwl4965_priv *priv, int txq_id, int index)
+{
+ struct iwl4965_tx_queue *txq = &priv->txq[txq_id];
+ struct iwl4965_queue *q = &txq->q;
+ int nfreed = 0;
+
+ if ((index >= q->n_bd) || (x2_queue_used(q, index) == 0)) {
+ IWL_ERROR("Read index for DMA queue txq id (%d), index %d, "
+ "is out of range [0-%d] %d %d.\n", txq_id,
+ index, q->n_bd, q->write_ptr, q->read_ptr);
+ return 0;
+ }
+
+ for (index = iwl4965_queue_inc_wrap(index, q->n_bd);
+ q->read_ptr != index;
+ q->read_ptr = iwl4965_queue_inc_wrap(q->read_ptr, q->n_bd)) {
+ if (txq_id != IWL_CMD_QUEUE_NUM) {
+ iwl4965_txstatus_to_ieee(priv,
+ &(txq->txb[txq->q.read_ptr]));
+ iwl4965_hw_txq_free_tfd(priv, txq);
+ } else if (nfreed > 1) {
+ IWL_ERROR("HCMD skipped: index (%d) %d %d\n", index,
+ q->write_ptr, q->read_ptr);
+ queue_work(priv->workqueue, &priv->restart);
+ }
+ nfreed++;
+ }
+
+ if (iwl4965_queue_space(q) > q->low_mark && (txq_id >= 0) &&
+ (txq_id != IWL_CMD_QUEUE_NUM) &&
+ priv->mac80211_registered)
+ ieee80211_wake_queue(priv->hw, txq_id);
+
+
+ return nfreed;
+}
+
+static int iwl4965_is_tx_success(u32 status)
+{
+ status &= TX_STATUS_MSK;
+ return (status == TX_STATUS_SUCCESS)
+ || (status == TX_STATUS_DIRECT_DONE);
+}
+
+/******************************************************************************
+ *
+ * Generic RX handler implementations
+ *
+ ******************************************************************************/
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+
+static inline int iwl4965_get_ra_sta_id(struct iwl4965_priv *priv,
+ struct ieee80211_hdr *hdr)
+{
+ if (priv->iw_mode == IEEE80211_IF_TYPE_STA)
+ return IWL_AP_ID;
+ else {
+ u8 *da = ieee80211_get_DA(hdr);
+ return iwl4965_hw_find_station(priv, da);
+ }
+}
+
+static struct ieee80211_hdr *iwl4965_tx_queue_get_hdr(
+ struct iwl4965_priv *priv, int txq_id, int idx)
+{
+ if (priv->txq[txq_id].txb[idx].skb[0])
+ return (struct ieee80211_hdr *)priv->txq[txq_id].
+ txb[idx].skb[0]->data;
+ return NULL;
+}
+
+static inline u32 iwl4965_get_scd_ssn(struct iwl4965_tx_resp *tx_resp)
+{
+ __le32 *scd_ssn = (__le32 *)((u32 *)&tx_resp->status +
+ tx_resp->frame_count);
+ return le32_to_cpu(*scd_ssn) & MAX_SN;
+
+}
+
+/**
+ * iwl4965_tx_status_reply_tx - Handle Tx rspnse for frames in aggregation queue
+ */
+static int iwl4965_tx_status_reply_tx(struct iwl4965_priv *priv,
+ struct iwl4965_ht_agg *agg,
+ struct iwl4965_tx_resp *tx_resp,
+ u16 start_idx)
+{
+ u32 status;
+ __le32 *frame_status = &tx_resp->status;
+ struct ieee80211_tx_status *tx_status = NULL;
+ struct ieee80211_hdr *hdr = NULL;
+ int i, sh;
+ int txq_id, idx;
+ u16 seq;
+
+ if (agg->wait_for_ba)
+ IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
+
+ agg->frame_count = tx_resp->frame_count;
+ agg->start_idx = start_idx;
+ agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
+ agg->bitmap0 = agg->bitmap1 = 0;
+
+ /* # frames attempted by Tx command */
+ if (agg->frame_count == 1) {
+ /* Only one frame was attempted; no block-ack will arrive */
+ struct iwl4965_tx_queue *txq ;
+ status = le32_to_cpu(frame_status[0]);
+
+ txq_id = agg->txq_id;
+ txq = &priv->txq[txq_id];
+ /* FIXME: code repetition */
+ IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d \n",
+ agg->frame_count, agg->start_idx);
+
+ tx_status = &(priv->txq[txq_id].txb[txq->q.read_ptr].status);
+ tx_status->retry_count = tx_resp->failure_frame;
+ tx_status->queue_number = status & 0xff;
+ tx_status->queue_length = tx_resp->bt_kill_count;
+ tx_status->queue_length |= tx_resp->failure_rts;
+
+ tx_status->flags = iwl4965_is_tx_success(status)?
+ IEEE80211_TX_STATUS_ACK : 0;
+ tx_status->control.tx_rate =
+ iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags);
+ /* FIXME: code repetition end */
+
+ IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
+ status & 0xff, tx_resp->failure_frame);
+ IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n",
+ iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags));
+
+ agg->wait_for_ba = 0;
+ } else {
+ /* Two or more frames were attempted; expect block-ack */
+ u64 bitmap = 0;
+ int start = agg->start_idx;
+
+ /* Construct bit-map of pending frames within Tx window */
+ for (i = 0; i < agg->frame_count; i++) {
+ u16 sc;
+ status = le32_to_cpu(frame_status[i]);
+ seq = status >> 16;
+ idx = SEQ_TO_INDEX(seq);
+ txq_id = SEQ_TO_QUEUE(seq);
+
+ if (status & (AGG_TX_STATE_FEW_BYTES_MSK |
+ AGG_TX_STATE_ABORT_MSK))
+ continue;
+
+ IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
+ agg->frame_count, txq_id, idx);
+
+ hdr = iwl4965_tx_queue_get_hdr(priv, txq_id, idx);
+
+ sc = le16_to_cpu(hdr->seq_ctrl);
+ if (idx != (SEQ_TO_SN(sc) & 0xff)) {
+ IWL_ERROR("BUG_ON idx doesn't match seq control"
+ " idx=%d, seq_idx=%d, seq=%d\n",
+ idx, SEQ_TO_SN(sc),
+ hdr->seq_ctrl);
+ return -1;
+ }
+
+ IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
+ i, idx, SEQ_TO_SN(sc));
+
+ sh = idx - start;
+ if (sh > 64) {
+ sh = (start - idx) + 0xff;
+ bitmap = bitmap << sh;
+ sh = 0;
+ start = idx;
+ } else if (sh < -64)
+ sh = 0xff - (start - idx);
+ else if (sh < 0) {
+ sh = start - idx;
+ start = idx;
+ bitmap = bitmap << sh;
+ sh = 0;
+ }
+ bitmap |= (1 << sh);
+ IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%x\n",
+ start, (u32)(bitmap & 0xFFFFFFFF));
+ }
+
+ agg->bitmap0 = bitmap & 0xFFFFFFFF;
+ agg->bitmap1 = bitmap >> 32;
+ agg->start_idx = start;
+ agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
+ IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%x\n",
+ agg->frame_count, agg->start_idx,
+ agg->bitmap0);
+
+ if (bitmap)
+ agg->wait_for_ba = 1;
+ }
+ return 0;
+}
+#endif
+#endif
+
+/**
+ * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
+ */
+static void iwl4965_rx_reply_tx(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ u16 sequence = le16_to_cpu(pkt->hdr.sequence);
+ int txq_id = SEQ_TO_QUEUE(sequence);
+ int index = SEQ_TO_INDEX(sequence);
+ struct iwl4965_tx_queue *txq = &priv->txq[txq_id];
+ struct ieee80211_tx_status *tx_status;
+ struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
+ u32 status = le32_to_cpu(tx_resp->status);
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+ int tid, sta_id;
+#endif
+#endif
+
+ if ((index >= txq->q.n_bd) || (x2_queue_used(&txq->q, index) == 0)) {
+ IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
+ "is out of range [0-%d] %d %d\n", txq_id,
+ index, txq->q.n_bd, txq->q.write_ptr,
+ txq->q.read_ptr);
+ return;
+ }
+
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+ if (txq->sched_retry) {
+ const u32 scd_ssn = iwl4965_get_scd_ssn(tx_resp);
+ struct ieee80211_hdr *hdr =
+ iwl4965_tx_queue_get_hdr(priv, txq_id, index);
+ struct iwl4965_ht_agg *agg = NULL;
+ __le16 *qc = ieee80211_get_qos_ctrl(hdr);
+
+ if (qc == NULL) {
+ IWL_ERROR("BUG_ON qc is null!!!!\n");
+ return;
+ }
+
+ tid = le16_to_cpu(*qc) & 0xf;
+
+ sta_id = iwl4965_get_ra_sta_id(priv, hdr);
+ if (unlikely(sta_id == IWL_INVALID_STATION)) {
+ IWL_ERROR("Station not known for\n");
+ return;
+ }
+
+ agg = &priv->stations[sta_id].tid[tid].agg;
+
+ iwl4965_tx_status_reply_tx(priv, agg, tx_resp, index);
+
+ if ((tx_resp->frame_count == 1) &&
+ !iwl4965_is_tx_success(status)) {
+ /* TODO: send BAR */
+ }
+
+ if ((txq->q.read_ptr != (scd_ssn & 0xff))) {
+ index = iwl4965_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
+ IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
+ "%d index %d\n", scd_ssn , index);
+ iwl4965_tx_queue_reclaim(priv, txq_id, index);
+ }
+ } else {
+#endif /* CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
+ tx_status = &(txq->txb[txq->q.read_ptr].status);
+
+ tx_status->retry_count = tx_resp->failure_frame;
+ tx_status->queue_number = status;
+ tx_status->queue_length = tx_resp->bt_kill_count;
+ tx_status->queue_length |= tx_resp->failure_rts;
+
+ tx_status->flags =
+ iwl4965_is_tx_success(status) ? IEEE80211_TX_STATUS_ACK : 0;
+
+ tx_status->control.tx_rate =
+ iwl4965_hw_get_rate_n_flags(tx_resp->rate_n_flags);
+
+ IWL_DEBUG_TX("Tx queue %d Status %s (0x%08x) rate_n_flags 0x%x "
+ "retries %d\n", txq_id, iwl4965_get_tx_fail_reason(status),
+ status, le32_to_cpu(tx_resp->rate_n_flags),
+ tx_resp->failure_frame);
+
+ IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index);
+ if (index != -1)
+ iwl4965_tx_queue_reclaim(priv, txq_id, index);
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+ }
+#endif /* CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
+
+ if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
+ IWL_ERROR("TODO: Implement Tx ABORT REQUIRED!!!\n");
+}
+
+
+static void iwl4965_rx_reply_alive(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_alive_resp *palive;
+ struct work_struct *pwork;
+
+ palive = &pkt->u.alive_frame;
+
+ IWL_DEBUG_INFO("Alive ucode status 0x%08X revision "
+ "0x%01X 0x%01X\n",
+ palive->is_valid, palive->ver_type,
+ palive->ver_subtype);
+
+ if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
+ IWL_DEBUG_INFO("Initialization Alive received.\n");
+ memcpy(&priv->card_alive_init,
+ &pkt->u.alive_frame,
+ sizeof(struct iwl4965_init_alive_resp));
+ pwork = &priv->init_alive_start;
+ } else {
+ IWL_DEBUG_INFO("Runtime Alive received.\n");
+ memcpy(&priv->card_alive, &pkt->u.alive_frame,
+ sizeof(struct iwl4965_alive_resp));
+ pwork = &priv->alive_start;
+ }
+
+ /* We delay the ALIVE response by 5ms to
+ * give the HW RF Kill time to activate... */
+ if (palive->is_valid == UCODE_VALID_OK)
+ queue_delayed_work(priv->workqueue, pwork,
+ msecs_to_jiffies(5));
+ else
+ IWL_WARNING("uCode did not respond OK.\n");
+}
+
+static void iwl4965_rx_reply_add_sta(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+
+ IWL_DEBUG_RX("Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
+ return;
+}
+
+static void iwl4965_rx_reply_error(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+
+ IWL_ERROR("Error Reply type 0x%08X cmd %s (0x%02X) "
+ "seq 0x%04X ser 0x%08X\n",
+ le32_to_cpu(pkt->u.err_resp.error_type),
+ get_cmd_string(pkt->u.err_resp.cmd_id),
+ pkt->u.err_resp.cmd_id,
+ le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
+ le32_to_cpu(pkt->u.err_resp.error_info));
+}
+
+#define TX_STATUS_ENTRY(x) case TX_STATUS_FAIL_ ## x: return #x
+
+static void iwl4965_rx_csa(struct iwl4965_priv *priv, struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_rxon_cmd *rxon = (void *)&priv->active_rxon;
+ struct iwl4965_csa_notification *csa = &(pkt->u.csa_notif);
+ IWL_DEBUG_11H("CSA notif: channel %d, status %d\n",
+ le16_to_cpu(csa->channel), le32_to_cpu(csa->status));
+ rxon->channel = csa->channel;
+ priv->staging_rxon.channel = csa->channel;
+}
+
+static void iwl4965_rx_spectrum_measure_notif(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_spectrum_notification *report = &(pkt->u.spectrum_notif);
+
+ if (!report->state) {
+ IWL_DEBUG(IWL_DL_11H | IWL_DL_INFO,
+ "Spectrum Measure Notification: Start\n");
+ return;
+ }
+
+ memcpy(&priv->measure_report, report, sizeof(*report));
+ priv->measurement_status |= MEASUREMENT_READY;
+#endif
+}
+
+static void iwl4965_rx_pm_sleep_notif(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWL4965_DEBUG
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_sleep_notification *sleep = &(pkt->u.sleep_notif);
+ IWL_DEBUG_RX("sleep mode: %d, src: %d\n",
+ sleep->pm_sleep_mode, sleep->pm_wakeup_src);
+#endif
+}
+
+static void iwl4965_rx_pm_debug_statistics_notif(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ IWL_DEBUG_RADIO("Dumping %d bytes of unhandled "
+ "notification for %s:\n",
+ le32_to_cpu(pkt->len), get_cmd_string(pkt->hdr.cmd));
+ iwl4965_print_hex_dump(IWL_DL_RADIO, pkt->u.raw, le32_to_cpu(pkt->len));
+}
+
+static void iwl4965_bg_beacon_update(void *p)
+{
+ struct iwl4965_priv *priv = p;
+ struct sk_buff *beacon;
+
+ /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
+ beacon = ieee80211_beacon_get(priv->hw, priv->interface_id, NULL);
+
+ if (!beacon) {
+ IWL_ERROR("update beacon failed\n");
+ return;
+ }
+
+ mutex_lock(&priv->mutex);
+ /* new beacon skb is allocated every time; dispose previous.*/
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = beacon;
+ mutex_unlock(&priv->mutex);
+
+ iwl4965_send_beacon_cmd(priv);
+}
+
+static void iwl4965_rx_beacon_notif(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWL4965_DEBUG
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_beacon_notif *beacon = &(pkt->u.beacon_status);
+ u8 rate = iwl4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
+
+ IWL_DEBUG_RX("beacon status %x retries %d iss %d "
+ "tsf %d %d rate %d\n",
+ le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
+ beacon->beacon_notify_hdr.failure_frame,
+ le32_to_cpu(beacon->ibss_mgr_status),
+ le32_to_cpu(beacon->high_tsf),
+ le32_to_cpu(beacon->low_tsf), rate);
+#endif
+
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
+ (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
+ queue_work(priv->workqueue, &priv->beacon_update);
+}
+
+/* Service response to REPLY_SCAN_CMD (0x80) */
+static void iwl4965_rx_reply_scan(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+#ifdef CONFIG_IWL4965_DEBUG
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_scanreq_notification *notif =
+ (struct iwl4965_scanreq_notification *)pkt->u.raw;
+
+ IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
+#endif
+}
+
+/* Service SCAN_START_NOTIFICATION (0x82) */
+static void iwl4965_rx_scan_start_notif(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_scanstart_notification *notif =
+ (struct iwl4965_scanstart_notification *)pkt->u.raw;
+ priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
+ IWL_DEBUG_SCAN("Scan start: "
+ "%d [802.11%s] "
+ "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
+ notif->channel,
+ notif->band ? "bg" : "a",
+ notif->tsf_high,
+ notif->tsf_low, notif->status, notif->beacon_timer);
+}
+
+/* Service SCAN_RESULTS_NOTIFICATION (0x83) */
+static void iwl4965_rx_scan_results_notif(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_scanresults_notification *notif =
+ (struct iwl4965_scanresults_notification *)pkt->u.raw;
+
+ IWL_DEBUG_SCAN("Scan ch.res: "
+ "%d [802.11%s] "
+ "(TSF: 0x%08X:%08X) - %d "
+ "elapsed=%lu usec (%dms since last)\n",
+ notif->channel,
+ notif->band ? "bg" : "a",
+ le32_to_cpu(notif->tsf_high),
+ le32_to_cpu(notif->tsf_low),
+ le32_to_cpu(notif->statistics[0]),
+ le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf,
+ jiffies_to_msecs(elapsed_jiffies
+ (priv->last_scan_jiffies, jiffies)));
+
+ priv->last_scan_jiffies = jiffies;
+ priv->next_scan_jiffies = 0;
+}
+
+/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
+static void iwl4965_rx_scan_complete_notif(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ struct iwl4965_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
+
+ IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
+ scan_notif->scanned_channels,
+ scan_notif->tsf_low,
+ scan_notif->tsf_high, scan_notif->status);
+
+ /* The HW is no longer scanning */
+ clear_bit(STATUS_SCAN_HW, &priv->status);
+
+ /* The scan completion notification came in, so kill that timer... */
+ cancel_delayed_work(&priv->scan_check);
+
+ IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
+ (priv->scan_bands == 2) ? "2.4" : "5.2",
+ jiffies_to_msecs(elapsed_jiffies
+ (priv->scan_pass_start, jiffies)));
+
+ /* Remove this scanned band from the list
+ * of pending bands to scan */
+ priv->scan_bands--;
+
+ /* If a request to abort was given, or the scan did not succeed
+ * then we reset the scan state machine and terminate,
+ * re-queuing another scan if one has been requested */
+ if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+ IWL_DEBUG_INFO("Aborted scan completed.\n");
+ clear_bit(STATUS_SCAN_ABORTING, &priv->status);
+ } else {
+ /* If there are more bands on this scan pass reschedule */
+ if (priv->scan_bands > 0)
+ goto reschedule;
+ }
+
+ priv->last_scan_jiffies = jiffies;
+ priv->next_scan_jiffies = 0;
+ IWL_DEBUG_INFO("Setting scan to off\n");
+
+ clear_bit(STATUS_SCANNING, &priv->status);
+
+ IWL_DEBUG_INFO("Scan took %dms\n",
+ jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
+
+ queue_work(priv->workqueue, &priv->scan_completed);
+
+ return;
+
+reschedule:
+ priv->scan_pass_start = jiffies;
+ queue_work(priv->workqueue, &priv->request_scan);
+}
+
+/* Handle notification from uCode that card's power state is changing
+ * due to software, hardware, or critical temperature RFKILL */
+static void iwl4965_rx_card_state_notif(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
+ u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
+ unsigned long status = priv->status;
+
+ IWL_DEBUG_RF_KILL("Card state received: HW:%s SW:%s\n",
+ (flags & HW_CARD_DISABLED) ? "Kill" : "On",
+ (flags & SW_CARD_DISABLED) ? "Kill" : "On");
+
+ if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
+ RF_CARD_DISABLED)) {
+
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_SET,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+ if (!iwl4965_grab_nic_access(priv)) {
+ iwl4965_write_direct32(
+ priv, HBUS_TARG_MBX_C,
+ HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
+
+ iwl4965_release_nic_access(priv);
+ }
+
+ if (!(flags & RXON_CARD_DISABLED)) {
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+ if (!iwl4965_grab_nic_access(priv)) {
+ iwl4965_write_direct32(
+ priv, HBUS_TARG_MBX_C,
+ HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
+
+ iwl4965_release_nic_access(priv);
+ }
+ }
+
+ if (flags & RF_CARD_DISABLED) {
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_SET,
+ CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
+ iwl4965_read32(priv, CSR_UCODE_DRV_GP1);
+ if (!iwl4965_grab_nic_access(priv))
+ iwl4965_release_nic_access(priv);
+ }
+ }
+
+ if (flags & HW_CARD_DISABLED)
+ set_bit(STATUS_RF_KILL_HW, &priv->status);
+ else
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
+
+
+ if (flags & SW_CARD_DISABLED)
+ set_bit(STATUS_RF_KILL_SW, &priv->status);
+ else
+ clear_bit(STATUS_RF_KILL_SW, &priv->status);
+
+ if (!(flags & RXON_CARD_DISABLED))
+ iwl4965_scan_cancel(priv);
+
+ if ((test_bit(STATUS_RF_KILL_HW, &status) !=
+ test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
+ (test_bit(STATUS_RF_KILL_SW, &status) !=
+ test_bit(STATUS_RF_KILL_SW, &priv->status)))
+ queue_work(priv->workqueue, &priv->rf_kill);
+ else
+ wake_up_interruptible(&priv->wait_command_queue);
+}
+
+/**
+ * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
+ *
+ * Setup the RX handlers for each of the reply types sent from the uCode
+ * to the host.
+ *
+ * This function chains into the hardware specific files for them to setup
+ * any hardware specific handlers as well.
+ */
+static void iwl4965_setup_rx_handlers(struct iwl4965_priv *priv)
+{
+ priv->rx_handlers[REPLY_ALIVE] = iwl4965_rx_reply_alive;
+ priv->rx_handlers[REPLY_ADD_STA] = iwl4965_rx_reply_add_sta;
+ priv->rx_handlers[REPLY_ERROR] = iwl4965_rx_reply_error;
+ priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl4965_rx_csa;
+ priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
+ iwl4965_rx_spectrum_measure_notif;
+ priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl4965_rx_pm_sleep_notif;
+ priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
+ iwl4965_rx_pm_debug_statistics_notif;
+ priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif;
+
+ /*
+ * The same handler is used for both the REPLY to a discrete
+ * statistics request from the host as well as for the periodic
+ * statistics notifications (after received beacons) from the uCode.
+ */
+ priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl4965_hw_rx_statistics;
+ priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl4965_hw_rx_statistics;
+
+ priv->rx_handlers[REPLY_SCAN_CMD] = iwl4965_rx_reply_scan;
+ priv->rx_handlers[SCAN_START_NOTIFICATION] = iwl4965_rx_scan_start_notif;
+ priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
+ iwl4965_rx_scan_results_notif;
+ priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
+ iwl4965_rx_scan_complete_notif;
+ priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl4965_rx_card_state_notif;
+ priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx;
+
+ /* Set up hardware specific Rx handlers */
+ iwl4965_hw_rx_handler_setup(priv);
+}
+
+/**
+ * iwl4965_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
+ * @rxb: Rx buffer to reclaim
+ *
+ * If an Rx buffer has an async callback associated with it the callback
+ * will be executed. The attached skb (if present) will only be freed
+ * if the callback returns 1
+ */
+static void iwl4965_tx_cmd_complete(struct iwl4965_priv *priv,
+ struct iwl4965_rx_mem_buffer *rxb)
+{
+ struct iwl4965_rx_packet *pkt = (struct iwl4965_rx_packet *)rxb->skb->data;
+ u16 sequence = le16_to_cpu(pkt->hdr.sequence);
+ int txq_id = SEQ_TO_QUEUE(sequence);
+ int index = SEQ_TO_INDEX(sequence);
+ int huge = sequence & SEQ_HUGE_FRAME;
+ int cmd_index;
+ struct iwl4965_cmd *cmd;
+
+ /* If a Tx command is being handled and it isn't in the actual
+ * command queue then there a command routing bug has been introduced
+ * in the queue management code. */
+ if (txq_id != IWL_CMD_QUEUE_NUM)
+ IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
+ txq_id, pkt->hdr.cmd);
+ BUG_ON(txq_id != IWL_CMD_QUEUE_NUM);
+
+ cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
+ cmd = &priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
+
+ /* Input error checking is done when commands are added to queue. */
+ if (cmd->meta.flags & CMD_WANT_SKB) {
+ cmd->meta.source->u.skb = rxb->skb;
+ rxb->skb = NULL;
+ } else if (cmd->meta.u.callback &&
+ !cmd->meta.u.callback(priv, cmd, rxb->skb))
+ rxb->skb = NULL;
+
+ iwl4965_tx_queue_reclaim(priv, txq_id, index);
+
+ if (!(cmd->meta.flags & CMD_ASYNC)) {
+ clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+ wake_up_interruptible(&priv->wait_command_queue);
+ }
+}
+
+/************************** RX-FUNCTIONS ****************************/
+/*
+ * Rx theory of operation
+ *
+ * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs),
+ * each of which point to Receive Buffers to be filled by 4965. These get
+ * used not only for Rx frames, but for any command response or notification
+ * from the 4965. The driver and 4965 manage the Rx buffers by means
+ * of indexes into the circular buffer.
+ *
+ * Rx Queue Indexes
+ * The host/firmware share two index registers for managing the Rx buffers.
+ *
+ * The READ index maps to the first position that the firmware may be writing
+ * to -- the driver can read up to (but not including) this position and get
+ * good data.
+ * The READ index is managed by the firmware once the card is enabled.
+ *
+ * The WRITE index maps to the last position the driver has read from -- the
+ * position preceding WRITE is the last slot the firmware can place a packet.
+ *
+ * The queue is empty (no good data) if WRITE = READ - 1, and is full if
+ * WRITE = READ.
+ *
+ * During initialization, the host sets up the READ queue position to the first
+ * INDEX position, and WRITE to the last (READ - 1 wrapped)
+ *
+ * When the firmware places a packet in a buffer, it will advance the READ index
+ * and fire the RX interrupt. The driver can then query the READ index and
+ * process as many packets as possible, moving the WRITE index forward as it
+ * resets the Rx queue buffers with new memory.
+ *
+ * The management in the driver is as follows:
+ * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
+ * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
+ * to replenish the iwl->rxq->rx_free.
+ * + In iwl4965_rx_replenish (scheduled) if 'processed' != 'read' then the
+ * iwl->rxq is replenished and the READ INDEX is updated (updating the
+ * 'processed' and 'read' driver indexes as well)
+ * + A received packet is processed and handed to the kernel network stack,
+ * detached from the iwl->rxq. The driver 'processed' index is updated.
+ * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
+ * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
+ * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
+ * were enough free buffers and RX_STALLED is set it is cleared.
+ *
+ *
+ * Driver sequence:
+ *
+ * iwl4965_rx_queue_alloc() Allocates rx_free
+ * iwl4965_rx_replenish() Replenishes rx_free list from rx_used, and calls
+ * iwl4965_rx_queue_restock
+ * iwl4965_rx_queue_restock() Moves available buffers from rx_free into Rx
+ * queue, updates firmware pointers, and updates
+ * the WRITE index. If insufficient rx_free buffers
+ * are available, schedules iwl4965_rx_replenish
+ *
+ * -- enable interrupts --
+ * ISR - iwl4965_rx() Detach iwl4965_rx_mem_buffers from pool up to the
+ * READ INDEX, detaching the SKB from the pool.
+ * Moves the packet buffer from queue to rx_used.
+ * Calls iwl4965_rx_queue_restock to refill any empty
+ * slots.
+ * ...
+ *
+ */
+
+/**
+ * iwl4965_rx_queue_space - Return number of free slots available in queue.
+ */
+static int iwl4965_rx_queue_space(const struct iwl4965_rx_queue *q)
+{
+ int s = q->read - q->write;
+ if (s <= 0)
+ s += RX_QUEUE_SIZE;
+ /* keep some buffer to not confuse full and empty queue */
+ s -= 2;
+ if (s < 0)
+ s = 0;
+ return s;
+}
+
+/**
+ * iwl4965_rx_queue_update_write_ptr - Update the write pointer for the RX queue
+ */
+int iwl4965_rx_queue_update_write_ptr(struct iwl4965_priv *priv, struct iwl4965_rx_queue *q)
+{
+ u32 reg = 0;
+ int rc = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&q->lock, flags);
+
+ if (q->need_update == 0)
+ goto exit_unlock;
+
+ /* If power-saving is in use, make sure device is awake */
+ if (test_bit(STATUS_POWER_PMI, &priv->status)) {
+ reg = iwl4965_read32(priv, CSR_UCODE_DRV_GP1);
+
+ if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
+ iwl4965_set_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ goto exit_unlock;
+ }
+
+ rc = iwl4965_grab_nic_access(priv);
+ if (rc)
+ goto exit_unlock;
+
+ /* Device expects a multiple of 8 */
+ iwl4965_write_direct32(priv, FH_RSCSR_CHNL0_WPTR,
+ q->write & ~0x7);
+ iwl4965_release_nic_access(priv);
+
+ /* Else device is assumed to be awake */
+ } else
+ /* Device expects a multiple of 8 */
+ iwl4965_write32(priv, FH_RSCSR_CHNL0_WPTR, q->write & ~0x7);
+
+
+ q->need_update = 0;
+
+ exit_unlock:
+ spin_unlock_irqrestore(&q->lock, flags);
+ return rc;
+}
+
+/**
+ * iwl4965_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
+ */
+static inline __le32 iwl4965_dma_addr2rbd_ptr(struct iwl4965_priv *priv,
+ dma_addr_t dma_addr)
+{
+ return cpu_to_le32((u32)(dma_addr >> 8));
+}
+
+
+/**
+ * iwl4965_rx_queue_restock - refill RX queue from pre-allocated pool
+ *
+ * If there are slots in the RX queue that need to be restocked,
+ * and we have free pre-allocated buffers, fill the ranks as much
+ * as we can, pulling from rx_free.
+ *
+ * This moves the 'write' index forward to catch up with 'processed', and
+ * also updates the memory address in the firmware to reference the new
+ * target buffer.
+ */
+static int iwl4965_rx_queue_restock(struct iwl4965_priv *priv)
+{
+ struct iwl4965_rx_queue *rxq = &priv->rxq;
+ struct list_head *element;
+ struct iwl4965_rx_mem_buffer *rxb;
+ unsigned long flags;
+ int write, rc;
+
+ spin_lock_irqsave(&rxq->lock, flags);
+ write = rxq->write & ~0x7;
+ while ((iwl4965_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
+ /* Get next free Rx buffer, remove from free list */
+ element = rxq->rx_free.next;
+ rxb = list_entry(element, struct iwl4965_rx_mem_buffer, list);
+ list_del(element);
+
+ /* Point to Rx buffer via next RBD in circular buffer */
+ rxq->bd[rxq->write] = iwl4965_dma_addr2rbd_ptr(priv, rxb->dma_addr);
+ rxq->queue[rxq->write] = rxb;
+ rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
+ rxq->free_count--;
+ }
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ /* If the pre-allocated buffer pool is dropping low, schedule to
+ * refill it */
+ if (rxq->free_count <= RX_LOW_WATERMARK)
+ queue_work(priv->workqueue, &priv->rx_replenish);
+
+
+ /* If we've added more space for the firmware to place data, tell it.
+ * Increment device's write pointer in multiples of 8. */
+ if ((write != (rxq->write & ~0x7))
+ || (abs(rxq->write - rxq->read) > 7)) {
+ spin_lock_irqsave(&rxq->lock, flags);
+ rxq->need_update = 1;
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ rc = iwl4965_rx_queue_update_write_ptr(priv, rxq);
+ if (rc)
+ return rc;
+ }
+
+ return 0;
+}
+
+/**
+ * iwl4965_rx_replenish - Move all used packet from rx_used to rx_free
+ *
+ * When moving to rx_free an SKB is allocated for the slot.
+ *
+ * Also restock the Rx queue via iwl4965_rx_queue_restock.
+ * This is called as a scheduled work item (except for during initialization)
+ */
+static void iwl4965_rx_allocate(struct iwl4965_priv *priv)
+{
+ struct iwl4965_rx_queue *rxq = &priv->rxq;
+ struct list_head *element;
+ struct iwl4965_rx_mem_buffer *rxb;
+ unsigned long flags;
+ spin_lock_irqsave(&rxq->lock, flags);
+ while (!list_empty(&rxq->rx_used)) {
+ element = rxq->rx_used.next;
+ rxb = list_entry(element, struct iwl4965_rx_mem_buffer, list);
+
+ /* Alloc a new receive buffer */
+ rxb->skb =
+ alloc_skb(priv->hw_setting.rx_buf_size,
+ __GFP_NOWARN | GFP_ATOMIC);
+ if (!rxb->skb) {
+ if (net_ratelimit())
+ printk(KERN_CRIT DRV_NAME
+ ": Can not allocate SKB buffers\n");
+ /* We don't reschedule replenish work here -- we will
+ * call the restock method and if it still needs
+ * more buffers it will schedule replenish */
+ break;
+ }
+ priv->alloc_rxb_skb++;
+ list_del(element);
+
+ /* Get physical address of RB/SKB */
+ rxb->dma_addr =
+ pci_map_single(priv->pci_dev, rxb->skb->data,
+ priv->hw_setting.rx_buf_size, PCI_DMA_FROMDEVICE);
+ list_add_tail(&rxb->list, &rxq->rx_free);
+ rxq->free_count++;
+ }
+ spin_unlock_irqrestore(&rxq->lock, flags);
+}
+
+/*
+ * this should be called while priv->lock is locked
+*/
+static void __iwl4965_rx_replenish(void *data)
+{
+ struct iwl4965_priv *priv = data;
+
+ iwl4965_rx_allocate(priv);
+ iwl4965_rx_queue_restock(priv);
+}
+
+
+void iwl4965_rx_replenish(void *data)
+{
+ struct iwl4965_priv *priv = data;
+ unsigned long flags;
+
+ iwl4965_rx_allocate(priv);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl4965_rx_queue_restock(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
+ * If an SKB has been detached, the POOL needs to have its SKB set to NULL
+ * This free routine walks the list of POOL entries and if SKB is set to
+ * non NULL it is unmapped and freed
+ */
+static void iwl4965_rx_queue_free(struct iwl4965_priv *priv, struct iwl4965_rx_queue *rxq)
+{
+ int i;
+ for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
+ if (rxq->pool[i].skb != NULL) {
+ pci_unmap_single(priv->pci_dev,
+ rxq->pool[i].dma_addr,
+ priv->hw_setting.rx_buf_size,
+ PCI_DMA_FROMDEVICE);
+ dev_kfree_skb(rxq->pool[i].skb);
+ }
+ }
+
+ pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
+ rxq->dma_addr);
+ rxq->bd = NULL;
+}
+
+int iwl4965_rx_queue_alloc(struct iwl4965_priv *priv)
+{
+ struct iwl4965_rx_queue *rxq = &priv->rxq;
+ struct pci_dev *dev = priv->pci_dev;
+ int i;
+
+ spin_lock_init(&rxq->lock);
+ INIT_LIST_HEAD(&rxq->rx_free);
+ INIT_LIST_HEAD(&rxq->rx_used);
+
+ /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
+ rxq->bd = pci_alloc_consistent(dev, 4 * RX_QUEUE_SIZE, &rxq->dma_addr);
+ if (!rxq->bd)
+ return -ENOMEM;
+
+ /* Fill the rx_used queue with _all_ of the Rx buffers */
+ for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
+ list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+
+ /* Set us so that we have processed and used all buffers, but have
+ * not restocked the Rx queue with fresh buffers */
+ rxq->read = rxq->write = 0;
+ rxq->free_count = 0;
+ rxq->need_update = 0;
+ return 0;
+}
+
+void iwl4965_rx_queue_reset(struct iwl4965_priv *priv, struct iwl4965_rx_queue *rxq)
+{
+ unsigned long flags;
+ int i;
+ spin_lock_irqsave(&rxq->lock, flags);
+ INIT_LIST_HEAD(&rxq->rx_free);
+ INIT_LIST_HEAD(&rxq->rx_used);
+ /* Fill the rx_used queue with _all_ of the Rx buffers */
+ for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
+ /* In the reset function, these buffers may have been allocated
+ * to an SKB, so we need to unmap and free potential storage */
+ if (rxq->pool[i].skb != NULL) {
+ pci_unmap_single(priv->pci_dev,
+ rxq->pool[i].dma_addr,
+ priv->hw_setting.rx_buf_size,
+ PCI_DMA_FROMDEVICE);
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb(rxq->pool[i].skb);
+ rxq->pool[i].skb = NULL;
+ }
+ list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+ }
+
+ /* Set us so that we have processed and used all buffers, but have
+ * not restocked the Rx queue with fresh buffers */
+ rxq->read = rxq->write = 0;
+ rxq->free_count = 0;
+ spin_unlock_irqrestore(&rxq->lock, flags);
+}
+
+/* Convert linear signal-to-noise ratio into dB */
+static u8 ratio2dB[100] = {
+/* 0 1 2 3 4 5 6 7 8 9 */
+ 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
+ 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
+ 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
+ 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
+ 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
+ 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
+ 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
+ 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
+ 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
+ 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
+};
+
+/* Calculates a relative dB value from a ratio of linear
+ * (i.e. not dB) signal levels.
+ * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
+int iwl4965_calc_db_from_ratio(int sig_ratio)
+{
+ /* 1000:1 or higher just report as 60 dB */
+ if (sig_ratio >= 1000)
+ return 60;
+
+ /* 100:1 or higher, divide by 10 and use table,
+ * add 20 dB to make up for divide by 10 */
+ if (sig_ratio >= 100)
+ return (20 + (int)ratio2dB[sig_ratio/10]);
+
+ /* We shouldn't see this */
+ if (sig_ratio < 1)
+ return 0;
+
+ /* Use table for ratios 1:1 - 99:1 */
+ return (int)ratio2dB[sig_ratio];
+}
+
+#define PERFECT_RSSI (-20) /* dBm */
+#define WORST_RSSI (-95) /* dBm */
+#define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
+
+/* Calculate an indication of rx signal quality (a percentage, not dBm!).
+ * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
+ * about formulas used below. */
+int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm)
+{
+ int sig_qual;
+ int degradation = PERFECT_RSSI - rssi_dbm;
+
+ /* If we get a noise measurement, use signal-to-noise ratio (SNR)
+ * as indicator; formula is (signal dbm - noise dbm).
+ * SNR at or above 40 is a great signal (100%).
+ * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
+ * Weakest usable signal is usually 10 - 15 dB SNR. */
+ if (noise_dbm) {
+ if (rssi_dbm - noise_dbm >= 40)
+ return 100;
+ else if (rssi_dbm < noise_dbm)
+ return 0;
+ sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
+
+ /* Else use just the signal level.
+ * This formula is a least squares fit of data points collected and
+ * compared with a reference system that had a percentage (%) display
+ * for signal quality. */
+ } else
+ sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
+ (15 * RSSI_RANGE + 62 * degradation)) /
+ (RSSI_RANGE * RSSI_RANGE);
+
+ if (sig_qual > 100)
+ sig_qual = 100;
+ else if (sig_qual < 1)
+ sig_qual = 0;
+
+ return sig_qual;
+}
+
+/**
+ * iwl4965_rx_handle - Main entry function for receiving responses from uCode
+ *
+ * Uses the priv->rx_handlers callback function array to invoke
+ * the appropriate handlers, including command responses,
+ * frame-received notifications, and other notifications.
+ */
+static void iwl4965_rx_handle(struct iwl4965_priv *priv)
+{
+ struct iwl4965_rx_mem_buffer *rxb;
+ struct iwl4965_rx_packet *pkt;
+ struct iwl4965_rx_queue *rxq = &priv->rxq;
+ u32 r, i;
+ int reclaim;
+ unsigned long flags;
+ u8 fill_rx = 0;
+ u32 count = 0;
+
+ /* uCode's read index (stored in shared DRAM) indicates the last Rx
+ * buffer that the driver may process (last buffer filled by ucode). */
+ r = iwl4965_hw_get_rx_read(priv);
+ i = rxq->read;
+
+ /* Rx interrupt, but nothing sent from uCode */
+ if (i == r)
+ IWL_DEBUG(IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i);
+
+ if (iwl4965_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
+ fill_rx = 1;
+
+ while (i != r) {
+ rxb = rxq->queue[i];
+
+ /* If an RXB doesn't have a Rx queue slot associated with it,
+ * then a bug has been introduced in the queue refilling
+ * routines -- catch it here */
+ BUG_ON(rxb == NULL);
+
+ rxq->queue[i] = NULL;
+
+ pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->dma_addr,
+ priv->hw_setting.rx_buf_size,
+ PCI_DMA_FROMDEVICE);
+ pkt = (struct iwl4965_rx_packet *)rxb->skb->data;
+
+ /* Reclaim a command buffer only if this packet is a response
+ * to a (driver-originated) command.
+ * If the packet (e.g. Rx frame) originated from uCode,
+ * there is no command buffer to reclaim.
+ * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
+ * but apparently a few don't get set; catch them here. */
+ reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
+ (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
+ (pkt->hdr.cmd != REPLY_4965_RX) &&
+ (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
+ (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
+ (pkt->hdr.cmd != REPLY_TX);
+
+ /* Based on type of command response or notification,
+ * handle those that need handling via function in
+ * rx_handlers table. See iwl4965_setup_rx_handlers() */
+ if (priv->rx_handlers[pkt->hdr.cmd]) {
+ IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR,
+ "r = %d, i = %d, %s, 0x%02x\n", r, i,
+ get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
+ priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
+ } else {
+ /* No handling needed */
+ IWL_DEBUG(IWL_DL_HOST_COMMAND | IWL_DL_RX | IWL_DL_ISR,
+ "r %d i %d No handler needed for %s, 0x%02x\n",
+ r, i, get_cmd_string(pkt->hdr.cmd),
+ pkt->hdr.cmd);
+ }
+
+ if (reclaim) {
+ /* Invoke any callbacks, transfer the skb to caller, and
+ * fire off the (possibly) blocking iwl4965_send_cmd()
+ * as we reclaim the driver command queue */
+ if (rxb && rxb->skb)
+ iwl4965_tx_cmd_complete(priv, rxb);
+ else
+ IWL_WARNING("Claim null rxb?\n");
+ }
+
+ /* For now we just don't re-use anything. We can tweak this
+ * later to try and re-use notification packets and SKBs that
+ * fail to Rx correctly */
+ if (rxb->skb != NULL) {
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb_any(rxb->skb);
+ rxb->skb = NULL;
+ }
+
+ pci_unmap_single(priv->pci_dev, rxb->dma_addr,
+ priv->hw_setting.rx_buf_size,
+ PCI_DMA_FROMDEVICE);
+ spin_lock_irqsave(&rxq->lock, flags);
+ list_add_tail(&rxb->list, &priv->rxq.rx_used);
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ i = (i + 1) & RX_QUEUE_MASK;
+ /* If there are a lot of unused frames,
+ * restock the Rx queue so ucode wont assert. */
+ if (fill_rx) {
+ count++;
+ if (count >= 8) {
+ priv->rxq.read = i;
+ __iwl4965_rx_replenish(priv);
+ count = 0;
+ }
+ }
+ }
+
+ /* Backtrack one entry */
+ priv->rxq.read = i;
+ iwl4965_rx_queue_restock(priv);
+}
+
+/**
+ * iwl4965_tx_queue_update_write_ptr - Send new write index to hardware
+ */
+static int iwl4965_tx_queue_update_write_ptr(struct iwl4965_priv *priv,
+ struct iwl4965_tx_queue *txq)
+{
+ u32 reg = 0;
+ int rc = 0;
+ int txq_id = txq->q.id;
+
+ if (txq->need_update == 0)
+ return rc;
+
+ /* if we're trying to save power */
+ if (test_bit(STATUS_POWER_PMI, &priv->status)) {
+ /* wake up nic if it's powered down ...
+ * uCode will wake up, and interrupt us again, so next
+ * time we'll skip this part. */
+ reg = iwl4965_read32(priv, CSR_UCODE_DRV_GP1);
+
+ if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
+ IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg);
+ iwl4965_set_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ return rc;
+ }
+
+ /* restore this queue's parameters in nic hardware. */
+ rc = iwl4965_grab_nic_access(priv);
+ if (rc)
+ return rc;
+ iwl4965_write_direct32(priv, HBUS_TARG_WRPTR,
+ txq->q.write_ptr | (txq_id << 8));
+ iwl4965_release_nic_access(priv);
+
+ /* else not in power-save mode, uCode will never sleep when we're
+ * trying to tx (during RFKILL, we're not trying to tx). */
+ } else
+ iwl4965_write32(priv, HBUS_TARG_WRPTR,
+ txq->q.write_ptr | (txq_id << 8));
+
+ txq->need_update = 0;
+
+ return rc;
+}
+
+#ifdef CONFIG_IWL4965_DEBUG
+static void iwl4965_print_rx_config_cmd(struct iwl4965_rxon_cmd *rxon)
+{
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_RADIO("RX CONFIG:\n");
+ iwl4965_print_hex_dump(IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
+ IWL_DEBUG_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
+ IWL_DEBUG_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
+ IWL_DEBUG_RADIO("u32 filter_flags: 0x%08x\n",
+ le32_to_cpu(rxon->filter_flags));
+ IWL_DEBUG_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
+ IWL_DEBUG_RADIO("u8 ofdm_basic_rates: 0x%02x\n",
+ rxon->ofdm_basic_rates);
+ IWL_DEBUG_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
+ IWL_DEBUG_RADIO("u8[6] node_addr: %s\n",
+ print_mac(mac, rxon->node_addr));
+ IWL_DEBUG_RADIO("u8[6] bssid_addr: %s\n",
+ print_mac(mac, rxon->bssid_addr));
+ IWL_DEBUG_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
+}
+#endif
+
+static void iwl4965_enable_interrupts(struct iwl4965_priv *priv)
+{
+ IWL_DEBUG_ISR("Enabling interrupts\n");
+ set_bit(STATUS_INT_ENABLED, &priv->status);
+ iwl4965_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
+}
+
+static inline void iwl4965_disable_interrupts(struct iwl4965_priv *priv)
+{
+ clear_bit(STATUS_INT_ENABLED, &priv->status);
+
+ /* disable interrupts from uCode/NIC to host */
+ iwl4965_write32(priv, CSR_INT_MASK, 0x00000000);
+
+ /* acknowledge/clear/reset any interrupts still pending
+ * from uCode or flow handler (Rx/Tx DMA) */
+ iwl4965_write32(priv, CSR_INT, 0xffffffff);
+ iwl4965_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
+ IWL_DEBUG_ISR("Disabled interrupts\n");
+}
+
+static const char *desc_lookup(int i)
+{
+ switch (i) {
+ case 1:
+ return "FAIL";
+ case 2:
+ return "BAD_PARAM";
+ case 3:
+ return "BAD_CHECKSUM";
+ case 4:
+ return "NMI_INTERRUPT";
+ case 5:
+ return "SYSASSERT";
+ case 6:
+ return "FATAL_ERROR";
+ }
+
+ return "UNKNOWN";
+}
+
+#define ERROR_START_OFFSET (1 * sizeof(u32))
+#define ERROR_ELEM_SIZE (7 * sizeof(u32))
+
+static void iwl4965_dump_nic_error_log(struct iwl4965_priv *priv)
+{
+ u32 data2, line;
+ u32 desc, time, count, base, data1;
+ u32 blink1, blink2, ilink1, ilink2;
+ int rc;
+
+ base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
+
+ if (!iwl4965_hw_valid_rtc_data_addr(base)) {
+ IWL_ERROR("Not valid error log pointer 0x%08X\n", base);
+ return;
+ }
+
+ rc = iwl4965_grab_nic_access(priv);
+ if (rc) {
+ IWL_WARNING("Can not read from adapter at this time.\n");
+ return;
+ }
+
+ count = iwl4965_read_targ_mem(priv, base);
+
+ if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
+ IWL_ERROR("Start IWL Error Log Dump:\n");
+ IWL_ERROR("Status: 0x%08lX, Config: %08X count: %d\n",
+ priv->status, priv->config, count);
+ }
+
+ desc = iwl4965_read_targ_mem(priv, base + 1 * sizeof(u32));
+ blink1 = iwl4965_read_targ_mem(priv, base + 3 * sizeof(u32));
+ blink2 = iwl4965_read_targ_mem(priv, base + 4 * sizeof(u32));
+ ilink1 = iwl4965_read_targ_mem(priv, base + 5 * sizeof(u32));
+ ilink2 = iwl4965_read_targ_mem(priv, base + 6 * sizeof(u32));
+ data1 = iwl4965_read_targ_mem(priv, base + 7 * sizeof(u32));
+ data2 = iwl4965_read_targ_mem(priv, base + 8 * sizeof(u32));
+ line = iwl4965_read_targ_mem(priv, base + 9 * sizeof(u32));
+ time = iwl4965_read_targ_mem(priv, base + 11 * sizeof(u32));
+
+ IWL_ERROR("Desc Time "
+ "data1 data2 line\n");
+ IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
+ desc_lookup(desc), desc, time, data1, data2, line);
+ IWL_ERROR("blink1 blink2 ilink1 ilink2\n");
+ IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2,
+ ilink1, ilink2);
+
+ iwl4965_release_nic_access(priv);
+}
+
+#define EVENT_START_OFFSET (4 * sizeof(u32))
+
+/**
+ * iwl4965_print_event_log - Dump error event log to syslog
+ *
+ * NOTE: Must be called with iwl4965_grab_nic_access() already obtained!
+ */
+static void iwl4965_print_event_log(struct iwl4965_priv *priv, u32 start_idx,
+ u32 num_events, u32 mode)
+{
+ u32 i;
+ u32 base; /* SRAM byte address of event log header */
+ u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
+ u32 ptr; /* SRAM byte address of log data */
+ u32 ev, time, data; /* event log data */
+
+ if (num_events == 0)
+ return;
+
+ base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+
+ if (mode == 0)
+ event_size = 2 * sizeof(u32);
+ else
+ event_size = 3 * sizeof(u32);
+
+ ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
+
+ /* "time" is actually "data" for mode 0 (no timestamp).
+ * place event id # at far right for easier visual parsing. */
+ for (i = 0; i < num_events; i++) {
+ ev = iwl4965_read_targ_mem(priv, ptr);
+ ptr += sizeof(u32);
+ time = iwl4965_read_targ_mem(priv, ptr);
+ ptr += sizeof(u32);
+ if (mode == 0)
+ IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */
+ else {
+ data = iwl4965_read_targ_mem(priv, ptr);
+ ptr += sizeof(u32);
+ IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev);
+ }
+ }
+}
+
+static void iwl4965_dump_nic_event_log(struct iwl4965_priv *priv)
+{
+ int rc;
+ u32 base; /* SRAM byte address of event log header */
+ u32 capacity; /* event log capacity in # entries */
+ u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
+ u32 num_wraps; /* # times uCode wrapped to top of log */
+ u32 next_entry; /* index of next entry to be written by uCode */
+ u32 size; /* # entries that we'll print */
+
+ base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
+ if (!iwl4965_hw_valid_rtc_data_addr(base)) {
+ IWL_ERROR("Invalid event log pointer 0x%08X\n", base);
+ return;
+ }
+
+ rc = iwl4965_grab_nic_access(priv);
+ if (rc) {
+ IWL_WARNING("Can not read from adapter at this time.\n");
+ return;
+ }
+
+ /* event log header */
+ capacity = iwl4965_read_targ_mem(priv, base);
+ mode = iwl4965_read_targ_mem(priv, base + (1 * sizeof(u32)));
+ num_wraps = iwl4965_read_targ_mem(priv, base + (2 * sizeof(u32)));
+ next_entry = iwl4965_read_targ_mem(priv, base + (3 * sizeof(u32)));
+
+ size = num_wraps ? capacity : next_entry;
+
+ /* bail out if nothing in log */
+ if (size == 0) {
+ IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
+ iwl4965_release_nic_access(priv);
+ return;
+ }
+
+ IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
+ size, num_wraps);
+
+ /* if uCode has wrapped back to top of log, start at the oldest entry,
+ * i.e the next one that uCode would fill. */
+ if (num_wraps)
+ iwl4965_print_event_log(priv, next_entry,
+ capacity - next_entry, mode);
+
+ /* (then/else) start at top of log */
+ iwl4965_print_event_log(priv, 0, next_entry, mode);
+
+ iwl4965_release_nic_access(priv);
+}
+
+/**
+ * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
+ */
+static void iwl4965_irq_handle_error(struct iwl4965_priv *priv)
+{
+ /* Set the FW error flag -- cleared on iwl4965_down */
+ set_bit(STATUS_FW_ERROR, &priv->status);
+
+ /* Cancel currently queued command. */
+ clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+
+#ifdef CONFIG_IWL4965_DEBUG
+ if (iwl4965_debug_level & IWL_DL_FW_ERRORS) {
+ iwl4965_dump_nic_error_log(priv);
+ iwl4965_dump_nic_event_log(priv);
+ iwl4965_print_rx_config_cmd(&priv->staging_rxon);
+ }
+#endif
+
+ wake_up_interruptible(&priv->wait_command_queue);
+
+ /* Keep the restart process from trying to send host
+ * commands by clearing the INIT status bit */
+ clear_bit(STATUS_READY, &priv->status);
+
+ if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+ IWL_DEBUG(IWL_DL_INFO | IWL_DL_FW_ERRORS,
+ "Restarting adapter due to uCode error.\n");
+
+ if (iwl4965_is_associated(priv)) {
+ memcpy(&priv->recovery_rxon, &priv->active_rxon,
+ sizeof(priv->recovery_rxon));
+ priv->error_recovering = 1;
+ }
+ queue_work(priv->workqueue, &priv->restart);
+ }
+}
+
+static void iwl4965_error_recovery(struct iwl4965_priv *priv)
+{
+ unsigned long flags;
+
+ memcpy(&priv->staging_rxon, &priv->recovery_rxon,
+ sizeof(priv->staging_rxon));
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+
+ iwl4965_rxon_add_station(priv, priv->bssid, 1);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
+ priv->error_recovering = 0;
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static void iwl4965_irq_tasklet(struct iwl4965_priv *priv)
+{
+ u32 inta, handled = 0;
+ u32 inta_fh;
+ unsigned long flags;
+#ifdef CONFIG_IWL4965_DEBUG
+ u32 inta_mask;
+#endif
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ /* Ack/clear/reset pending uCode interrupts.
+ * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
+ * and will clear only when CSR_FH_INT_STATUS gets cleared. */
+ inta = iwl4965_read32(priv, CSR_INT);
+ iwl4965_write32(priv, CSR_INT, inta);
+
+ /* Ack/clear/reset pending flow-handler (DMA) interrupts.
+ * Any new interrupts that happen after this, either while we're
+ * in this tasklet, or later, will show up in next ISR/tasklet. */
+ inta_fh = iwl4965_read32(priv, CSR_FH_INT_STATUS);
+ iwl4965_write32(priv, CSR_FH_INT_STATUS, inta_fh);
+
+#ifdef CONFIG_IWL4965_DEBUG
+ if (iwl4965_debug_level & IWL_DL_ISR) {
+ /* just for debug */
+ inta_mask = iwl4965_read32(priv, CSR_INT_MASK);
+ IWL_DEBUG_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
+ inta, inta_mask, inta_fh);
+ }
+#endif
+
+ /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
+ * atomic, make sure that inta covers all the interrupts that
+ * we've discovered, even if FH interrupt came in just after
+ * reading CSR_INT. */
+ if (inta_fh & CSR_FH_INT_RX_MASK)
+ inta |= CSR_INT_BIT_FH_RX;
+ if (inta_fh & CSR_FH_INT_TX_MASK)
+ inta |= CSR_INT_BIT_FH_TX;
+
+ /* Now service all interrupt bits discovered above. */
+ if (inta & CSR_INT_BIT_HW_ERR) {
+ IWL_ERROR("Microcode HW error detected. Restarting.\n");
+
+ /* Tell the device to stop sending interrupts */
+ iwl4965_disable_interrupts(priv);
+
+ iwl4965_irq_handle_error(priv);
+
+ handled |= CSR_INT_BIT_HW_ERR;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ return;
+ }
+
+#ifdef CONFIG_IWL4965_DEBUG
+ if (iwl4965_debug_level & (IWL_DL_ISR)) {
+ /* NIC fires this, but we don't use it, redundant with WAKEUP */
+ if (inta & CSR_INT_BIT_MAC_CLK_ACTV)
+ IWL_DEBUG_ISR("Microcode started or stopped.\n");
+
+ /* Alive notification via Rx interrupt will do the real work */
+ if (inta & CSR_INT_BIT_ALIVE)
+ IWL_DEBUG_ISR("Alive interrupt\n");
+ }
+#endif
+ /* Safely ignore these bits for debug checks below */
+ inta &= ~(CSR_INT_BIT_MAC_CLK_ACTV | CSR_INT_BIT_ALIVE);
+
+ /* HW RF KILL switch toggled */
+ if (inta & CSR_INT_BIT_RF_KILL) {
+ int hw_rf_kill = 0;
+ if (!(iwl4965_read32(priv, CSR_GP_CNTRL) &
+ CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
+ hw_rf_kill = 1;
+
+ IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL | IWL_DL_ISR,
+ "RF_KILL bit toggled to %s.\n",
+ hw_rf_kill ? "disable radio":"enable radio");
+
+ /* Queue restart only if RF_KILL switch was set to "kill"
+ * when we loaded driver, and is now set to "enable".
+ * After we're Alive, RF_KILL gets handled by
+ * iwl4965_rx_card_state_notif() */
+ if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) {
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
+ queue_work(priv->workqueue, &priv->restart);
+ }
+
+ handled |= CSR_INT_BIT_RF_KILL;
+ }
+
+ /* Chip got too hot and stopped itself */
+ if (inta & CSR_INT_BIT_CT_KILL) {
+ IWL_ERROR("Microcode CT kill error detected.\n");
+ handled |= CSR_INT_BIT_CT_KILL;
+ }
+
+ /* Error detected by uCode */
+ if (inta & CSR_INT_BIT_SW_ERR) {
+ IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
+ inta);
+ iwl4965_irq_handle_error(priv);
+ handled |= CSR_INT_BIT_SW_ERR;
+ }
+
+ /* uCode wakes up after power-down sleep */
+ if (inta & CSR_INT_BIT_WAKEUP) {
+ IWL_DEBUG_ISR("Wakeup interrupt\n");
+ iwl4965_rx_queue_update_write_ptr(priv, &priv->rxq);
+ iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[0]);
+ iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[1]);
+ iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[2]);
+ iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[3]);
+ iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[4]);
+ iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[5]);
+
+ handled |= CSR_INT_BIT_WAKEUP;
+ }
+
+ /* All uCode command responses, including Tx command responses,
+ * Rx "responses" (frame-received notification), and other
+ * notifications from uCode come through here*/
+ if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
+ iwl4965_rx_handle(priv);
+ handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
+ }
+
+ if (inta & CSR_INT_BIT_FH_TX) {
+ IWL_DEBUG_ISR("Tx interrupt\n");
+ handled |= CSR_INT_BIT_FH_TX;
+ }
+
+ if (inta & ~handled)
+ IWL_ERROR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
+
+ if (inta & ~CSR_INI_SET_MASK) {
+ IWL_WARNING("Disabled INTA bits 0x%08x were pending\n",
+ inta & ~CSR_INI_SET_MASK);
+ IWL_WARNING(" with FH_INT = 0x%08x\n", inta_fh);
+ }
+
+ /* Re-enable all interrupts */
+ iwl4965_enable_interrupts(priv);
+
+#ifdef CONFIG_IWL4965_DEBUG
+ if (iwl4965_debug_level & (IWL_DL_ISR)) {
+ inta = iwl4965_read32(priv, CSR_INT);
+ inta_mask = iwl4965_read32(priv, CSR_INT_MASK);
+ inta_fh = iwl4965_read32(priv, CSR_FH_INT_STATUS);
+ IWL_DEBUG_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
+ "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
+ }
+#endif
+ spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static irqreturn_t iwl4965_isr(int irq, void *data, struct pt_regs *regs)
+{
+ struct iwl4965_priv *priv = data;
+ u32 inta, inta_mask;
+ u32 inta_fh;
+ if (!priv)
+ return IRQ_NONE;
+
+ spin_lock(&priv->lock);
+
+ /* Disable (but don't clear!) interrupts here to avoid
+ * back-to-back ISRs and sporadic interrupts from our NIC.
+ * If we have something to service, the tasklet will re-enable ints.
+ * If we *don't* have something, we'll re-enable before leaving here. */
+ inta_mask = iwl4965_read32(priv, CSR_INT_MASK); /* just for debug */
+ iwl4965_write32(priv, CSR_INT_MASK, 0x00000000);
+
+ /* Discover which interrupts are active/pending */
+ inta = iwl4965_read32(priv, CSR_INT);
+ inta_fh = iwl4965_read32(priv, CSR_FH_INT_STATUS);
+
+ /* Ignore interrupt if there's nothing in NIC to service.
+ * This may be due to IRQ shared with another device,
+ * or due to sporadic interrupts thrown from our NIC. */
+ if (!inta && !inta_fh) {
+ IWL_DEBUG_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
+ goto none;
+ }
+
+ if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
+ /* Hardware disappeared. It might have already raised
+ * an interrupt */
+ IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
+ goto unplugged;
+ }
+
+ IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
+ inta, inta_mask, inta_fh);
+
+ /* iwl4965_irq_tasklet() will service interrupts and re-enable them */
+ tasklet_schedule(&priv->irq_tasklet);
+
+ unplugged:
+ spin_unlock(&priv->lock);
+ return IRQ_HANDLED;
+
+ none:
+ /* re-enable interrupts here since we don't have anything to service. */
+ iwl4965_enable_interrupts(priv);
+ spin_unlock(&priv->lock);
+ return IRQ_NONE;
+}
+
+/************************** EEPROM BANDS ****************************
+ *
+ * The iwl4965_eeprom_band definitions below provide the mapping from the
+ * EEPROM contents to the specific channel number supported for each
+ * band.
+ *
+ * For example, iwl4965_priv->eeprom.band_3_channels[4] from the band_3
+ * definition below maps to physical channel 42 in the 5.2GHz spectrum.
+ * The specific geography and calibration information for that channel
+ * is contained in the eeprom map itself.
+ *
+ * During init, we copy the eeprom information and channel map
+ * information into priv->channel_info_24/52 and priv->channel_map_24/52
+ *
+ * channel_map_24/52 provides the index in the channel_info array for a
+ * given channel. We have to have two separate maps as there is channel
+ * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
+ * band_2
+ *
+ * A value of 0xff stored in the channel_map indicates that the channel
+ * is not supported by the hardware at all.
+ *
+ * A value of 0xfe in the channel_map indicates that the channel is not
+ * valid for Tx with the current hardware. This means that
+ * while the system can tune and receive on a given channel, it may not
+ * be able to associate or transmit any frames on that
+ * channel. There is no corresponding channel information for that
+ * entry.
+ *
+ *********************************************************************/
+
+/* 2.4 GHz */
+static const u8 iwl4965_eeprom_band_1[14] = {
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
+};
+
+/* 5.2 GHz bands */
+static const u8 iwl4965_eeprom_band_2[] = { /* 4915-5080MHz */
+ 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
+};
+
+static const u8 iwl4965_eeprom_band_3[] = { /* 5170-5320MHz */
+ 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
+};
+
+static const u8 iwl4965_eeprom_band_4[] = { /* 5500-5700MHz */
+ 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
+};
+
+static const u8 iwl4965_eeprom_band_5[] = { /* 5725-5825MHz */
+ 145, 149, 153, 157, 161, 165
+};
+
+static u8 iwl4965_eeprom_band_6[] = { /* 2.4 FAT channel */
+ 1, 2, 3, 4, 5, 6, 7
+};
+
+static u8 iwl4965_eeprom_band_7[] = { /* 5.2 FAT channel */
+ 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
+};
+
+static void iwl4965_init_band_reference(const struct iwl4965_priv *priv,
+ int band,
+ int *eeprom_ch_count,
+ const struct iwl4965_eeprom_channel
+ **eeprom_ch_info,
+ const u8 **eeprom_ch_index)
+{
+ switch (band) {
+ case 1: /* 2.4GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_1);
+ *eeprom_ch_info = priv->eeprom.band_1_channels;
+ *eeprom_ch_index = iwl4965_eeprom_band_1;
+ break;
+ case 2: /* 4.9GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_2);
+ *eeprom_ch_info = priv->eeprom.band_2_channels;
+ *eeprom_ch_index = iwl4965_eeprom_band_2;
+ break;
+ case 3: /* 5.2GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_3);
+ *eeprom_ch_info = priv->eeprom.band_3_channels;
+ *eeprom_ch_index = iwl4965_eeprom_band_3;
+ break;
+ case 4: /* 5.5GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_4);
+ *eeprom_ch_info = priv->eeprom.band_4_channels;
+ *eeprom_ch_index = iwl4965_eeprom_band_4;
+ break;
+ case 5: /* 5.7GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_5);
+ *eeprom_ch_info = priv->eeprom.band_5_channels;
+ *eeprom_ch_index = iwl4965_eeprom_band_5;
+ break;
+ case 6: /* 2.4GHz FAT channels */
+ *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_6);
+ *eeprom_ch_info = priv->eeprom.band_24_channels;
+ *eeprom_ch_index = iwl4965_eeprom_band_6;
+ break;
+ case 7: /* 5 GHz FAT channels */
+ *eeprom_ch_count = ARRAY_SIZE(iwl4965_eeprom_band_7);
+ *eeprom_ch_info = priv->eeprom.band_52_channels;
+ *eeprom_ch_index = iwl4965_eeprom_band_7;
+ break;
+ default:
+ BUG();
+ return;
+ }
+}
+
+/**
+ * iwl4965_get_channel_info - Find driver's private channel info
+ *
+ * Based on band and channel number.
+ */
+const struct iwl4965_channel_info *iwl4965_get_channel_info(const struct iwl4965_priv *priv,
+ int phymode, u16 channel)
+{
+ int i;
+
+ switch (phymode) {
+ case MODE_IEEE80211A:
+ for (i = 14; i < priv->channel_count; i++) {
+ if (priv->channel_info[i].channel == channel)
+ return &priv->channel_info[i];
+ }
+ break;
+
+ case MODE_IEEE80211B:
+ case MODE_IEEE80211G:
+ if (channel >= 1 && channel <= 14)
+ return &priv->channel_info[channel - 1];
+ break;
+
+ }
+
+ return NULL;
+}
+
+#define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
+ ? # x " " : "")
+
+/**
+ * iwl4965_init_channel_map - Set up driver's info for all possible channels
+ */
+static int iwl4965_init_channel_map(struct iwl4965_priv *priv)
+{
+ int eeprom_ch_count = 0;
+ const u8 *eeprom_ch_index = NULL;
+ const struct iwl4965_eeprom_channel *eeprom_ch_info = NULL;
+ int band, ch;
+ struct iwl4965_channel_info *ch_info;
+
+ if (priv->channel_count) {
+ IWL_DEBUG_INFO("Channel map already initialized.\n");
+ return 0;
+ }
+
+ if (priv->eeprom.version < 0x2f) {
+ IWL_WARNING("Unsupported EEPROM version: 0x%04X\n",
+ priv->eeprom.version);
+ return -EINVAL;
+ }
+
+ IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
+
+ priv->channel_count =
+ ARRAY_SIZE(iwl4965_eeprom_band_1) +
+ ARRAY_SIZE(iwl4965_eeprom_band_2) +
+ ARRAY_SIZE(iwl4965_eeprom_band_3) +
+ ARRAY_SIZE(iwl4965_eeprom_band_4) +
+ ARRAY_SIZE(iwl4965_eeprom_band_5);
+
+ IWL_DEBUG_INFO("Parsing data for %d channels.\n", priv->channel_count);
+
+ priv->channel_info = kzalloc(sizeof(struct iwl4965_channel_info) *
+ priv->channel_count, GFP_KERNEL);
+ if (!priv->channel_info) {
+ IWL_ERROR("Could not allocate channel_info\n");
+ priv->channel_count = 0;
+ return -ENOMEM;
+ }
+
+ ch_info = priv->channel_info;
+
+ /* Loop through the 5 EEPROM bands adding them in order to the
+ * channel map we maintain (that contains additional information than
+ * what just in the EEPROM) */
+ for (band = 1; band <= 5; band++) {
+
+ iwl4965_init_band_reference(priv, band, &eeprom_ch_count,
+ &eeprom_ch_info, &eeprom_ch_index);
+
+ /* Loop through each band adding each of the channels */
+ for (ch = 0; ch < eeprom_ch_count; ch++) {
+ ch_info->channel = eeprom_ch_index[ch];
+ ch_info->phymode = (band == 1) ? MODE_IEEE80211B :
+ MODE_IEEE80211A;
+
+ /* permanently store EEPROM's channel regulatory flags
+ * and max power in channel info database. */
+ ch_info->eeprom = eeprom_ch_info[ch];
+
+ /* Copy the run-time flags so they are there even on
+ * invalid channels */
+ ch_info->flags = eeprom_ch_info[ch].flags;
+
+ if (!(is_channel_valid(ch_info))) {
+ IWL_DEBUG_INFO("Ch. %d Flags %x [%sGHz] - "
+ "No traffic\n",
+ ch_info->channel,
+ ch_info->flags,
+ is_channel_a_band(ch_info) ?
+ "5.2" : "2.4");
+ ch_info++;
+ continue;
+ }
+
+ /* Initialize regulatory-based run-time data */
+ ch_info->max_power_avg = ch_info->curr_txpow =
+ eeprom_ch_info[ch].max_power_avg;
+ ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
+ ch_info->min_power = 0;
+
+ IWL_DEBUG_INFO("Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x"
+ " %ddBm): Ad-Hoc %ssupported\n",
+ ch_info->channel,
+ is_channel_a_band(ch_info) ?
+ "5.2" : "2.4",
+ CHECK_AND_PRINT(IBSS),
+ CHECK_AND_PRINT(ACTIVE),
+ CHECK_AND_PRINT(RADAR),
+ CHECK_AND_PRINT(WIDE),
+ CHECK_AND_PRINT(NARROW),
+ CHECK_AND_PRINT(DFS),
+ eeprom_ch_info[ch].flags,
+ eeprom_ch_info[ch].max_power_avg,
+ ((eeprom_ch_info[ch].
+ flags & EEPROM_CHANNEL_IBSS)
+ && !(eeprom_ch_info[ch].
+ flags & EEPROM_CHANNEL_RADAR))
+ ? "" : "not ");
+
+ /* Set the user_txpower_limit to the highest power
+ * supported by any channel */
+ if (eeprom_ch_info[ch].max_power_avg >
+ priv->user_txpower_limit)
+ priv->user_txpower_limit =
+ eeprom_ch_info[ch].max_power_avg;
+
+ ch_info++;
+ }
+ }
+
+ /* Two additional EEPROM bands for 2.4 and 5 GHz FAT channels */
+ for (band = 6; band <= 7; band++) {
+ int phymode;
+ u8 fat_extension_chan;
+
+ iwl4965_init_band_reference(priv, band, &eeprom_ch_count,
+ &eeprom_ch_info, &eeprom_ch_index);
+
+ /* EEPROM band 6 is 2.4, band 7 is 5 GHz */
+ phymode = (band == 6) ? MODE_IEEE80211B : MODE_IEEE80211A;
+
+ /* Loop through each band adding each of the channels */
+ for (ch = 0; ch < eeprom_ch_count; ch++) {
+
+ if ((band == 6) &&
+ ((eeprom_ch_index[ch] == 5) ||
+ (eeprom_ch_index[ch] == 6) ||
+ (eeprom_ch_index[ch] == 7)))
+ fat_extension_chan = HT_IE_EXT_CHANNEL_MAX;
+ else
+ fat_extension_chan = HT_IE_EXT_CHANNEL_ABOVE;
+
+ /* Set up driver's info for lower half */
+ iwl4965_set_fat_chan_info(priv, phymode,
+ eeprom_ch_index[ch],
+ &(eeprom_ch_info[ch]),
+ fat_extension_chan);
+
+ /* Set up driver's info for upper half */
+ iwl4965_set_fat_chan_info(priv, phymode,
+ (eeprom_ch_index[ch] + 4),
+ &(eeprom_ch_info[ch]),
+ HT_IE_EXT_CHANNEL_BELOW);
+ }
+ }
+
+ return 0;
+}
+
+/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
+ * sending probe req. This should be set long enough to hear probe responses
+ * from more than one AP. */
+#define IWL_ACTIVE_DWELL_TIME_24 (20) /* all times in msec */
+#define IWL_ACTIVE_DWELL_TIME_52 (10)
+
+/* For faster active scanning, scan will move to the next channel if fewer than
+ * PLCP_QUIET_THRESH packets are heard on this channel within
+ * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
+ * time if it's a quiet channel (nothing responded to our probe, and there's
+ * no other traffic).
+ * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
+#define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
+#define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(5) /* msec */
+
+/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
+ * Must be set longer than active dwell time.
+ * For the most reliable scan, set > AP beacon interval (typically 100msec). */
+#define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
+#define IWL_PASSIVE_DWELL_TIME_52 (10)
+#define IWL_PASSIVE_DWELL_BASE (100)
+#define IWL_CHANNEL_TUNE_TIME 5
+
+static inline u16 iwl4965_get_active_dwell_time(struct iwl4965_priv *priv, int phymode)
+{
+ if (phymode == MODE_IEEE80211A)
+ return IWL_ACTIVE_DWELL_TIME_52;
+ else
+ return IWL_ACTIVE_DWELL_TIME_24;
+}
+
+static u16 iwl4965_get_passive_dwell_time(struct iwl4965_priv *priv, int phymode)
+{
+ u16 active = iwl4965_get_active_dwell_time(priv, phymode);
+ u16 passive = (phymode != MODE_IEEE80211A) ?
+ IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
+ IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
+
+ if (iwl4965_is_associated(priv)) {
+ /* If we're associated, we clamp the maximum passive
+ * dwell time to be 98% of the beacon interval (minus
+ * 2 * channel tune time) */
+ passive = priv->beacon_int;
+ if ((passive > IWL_PASSIVE_DWELL_BASE) || !passive)
+ passive = IWL_PASSIVE_DWELL_BASE;
+ passive = (passive * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
+ }
+
+ if (passive <= active)
+ passive = active + 1;
+
+ return passive;
+}
+
+static int iwl4965_get_channels_for_scan(struct iwl4965_priv *priv, int phymode,
+ u8 is_active, u8 direct_mask,
+ struct iwl4965_scan_channel *scan_ch)
+{
+ const struct ieee80211_channel *channels = NULL;
+ const struct ieee80211_hw_mode *hw_mode;
+ const struct iwl4965_channel_info *ch_info;
+ u16 passive_dwell = 0;
+ u16 active_dwell = 0;
+ int added, i;
+
+ hw_mode = iwl4965_get_hw_mode(priv, phymode);
+ if (!hw_mode)
+ return 0;
+
+ channels = hw_mode->channels;
+
+ active_dwell = iwl4965_get_active_dwell_time(priv, phymode);
+ passive_dwell = iwl4965_get_passive_dwell_time(priv, phymode);
+
+ for (i = 0, added = 0; i < hw_mode->num_channels; i++) {
+ if (channels[i].chan ==
+ le16_to_cpu(priv->active_rxon.channel)) {
+ if (iwl4965_is_associated(priv)) {
+ IWL_DEBUG_SCAN
+ ("Skipping current channel %d\n",
+ le16_to_cpu(priv->active_rxon.channel));
+ continue;
+ }
+ } else if (priv->only_active_channel)
+ continue;
+
+ scan_ch->channel = channels[i].chan;
+
+ ch_info = iwl4965_get_channel_info(priv, phymode,
+ scan_ch->channel);
+ if (!is_channel_valid(ch_info)) {
+ IWL_DEBUG_SCAN("Channel %d is INVALID for this SKU.\n",
+ scan_ch->channel);
+ continue;
+ }
+
+ if (!is_active || is_channel_passive(ch_info) ||
+ !(channels[i].flag & IEEE80211_CHAN_W_ACTIVE_SCAN))
+ scan_ch->type = 0; /* passive */
+ else
+ scan_ch->type = 1; /* active */
+
+ if (scan_ch->type & 1)
+ scan_ch->type |= (direct_mask << 1);
+
+ if (is_channel_narrow(ch_info))
+ scan_ch->type |= (1 << 7);
+
+ scan_ch->active_dwell = cpu_to_le16(active_dwell);
+ scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
+
+ /* Set txpower levels to defaults */
+ scan_ch->tpc.dsp_atten = 110;
+ /* scan_pwr_info->tpc.dsp_atten; */
+
+ /*scan_pwr_info->tpc.tx_gain; */
+ if (phymode == MODE_IEEE80211A)
+ scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
+ else {
+ scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
+ /* NOTE: if we were doing 6Mb OFDM for scans we'd use
+ * power level:
+ * scan_ch->tpc.tx_gain = ((1<<5) | (2 << 3)) | 3;
+ */
+ }
+
+ IWL_DEBUG_SCAN("Scanning %d [%s %d]\n",
+ scan_ch->channel,
+ (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
+ (scan_ch->type & 1) ?
+ active_dwell : passive_dwell);
+
+ scan_ch++;
+ added++;
+ }
+
+ IWL_DEBUG_SCAN("total channels to scan %d \n", added);
+ return added;
+}
+
+static void iwl4965_reset_channel_flag(struct iwl4965_priv *priv)
+{
+ int i, j;
+ for (i = 0; i < 3; i++) {
+ struct ieee80211_hw_mode *hw_mode = (void *)&priv->modes[i];
+ for (j = 0; j < hw_mode->num_channels; j++)
+ hw_mode->channels[j].flag = hw_mode->channels[j].val;
+ }
+}
+
+static void iwl4965_init_hw_rates(struct iwl4965_priv *priv,
+ struct ieee80211_rate *rates)
+{
+ int i;
+
+ for (i = 0; i < IWL_RATE_COUNT; i++) {
+ rates[i].rate = iwl4965_rates[i].ieee * 5;
+ rates[i].val = i; /* Rate scaling will work on indexes */
+ rates[i].val2 = i;
+ rates[i].flags = IEEE80211_RATE_SUPPORTED;
+ /* Only OFDM have the bits-per-symbol set */
+ if ((i <= IWL_LAST_OFDM_RATE) && (i >= IWL_FIRST_OFDM_RATE))
+ rates[i].flags |= IEEE80211_RATE_OFDM;
+ else {
+ /*
+ * If CCK 1M then set rate flag to CCK else CCK_2
+ * which is CCK | PREAMBLE2
+ */
+ rates[i].flags |= (iwl4965_rates[i].plcp == 10) ?
+ IEEE80211_RATE_CCK : IEEE80211_RATE_CCK_2;
+ }
+
+ /* Set up which ones are basic rates... */
+ if (IWL_BASIC_RATES_MASK & (1 << i))
+ rates[i].flags |= IEEE80211_RATE_BASIC;
+ }
+}
+
+/**
+ * iwl4965_init_geos - Initialize mac80211's geo/channel info based from eeprom
+ */
+static int iwl4965_init_geos(struct iwl4965_priv *priv)
+{
+ struct iwl4965_channel_info *ch;
+ struct ieee80211_hw_mode *modes;
+ struct ieee80211_channel *channels;
+ struct ieee80211_channel *geo_ch;
+ struct ieee80211_rate *rates;
+ int i = 0;
+ enum {
+ A = 0,
+ B = 1,
+ G = 2,
+ };
+ int mode_count = 3;
+
+ if (priv->modes) {
+ IWL_DEBUG_INFO("Geography modes already initialized.\n");
+ set_bit(STATUS_GEO_CONFIGURED, &priv->status);
+ return 0;
+ }
+
+ modes = kzalloc(sizeof(struct ieee80211_hw_mode) * mode_count,
+ GFP_KERNEL);
+ if (!modes)
+ return -ENOMEM;
+
+ channels = kzalloc(sizeof(struct ieee80211_channel) *
+ priv->channel_count, GFP_KERNEL);
+ if (!channels) {
+ kfree(modes);
+ return -ENOMEM;
+ }
+
+ rates = kzalloc((sizeof(struct ieee80211_rate) * (IWL_MAX_RATES + 1)),
+ GFP_KERNEL);
+ if (!rates) {
+ kfree(modes);
+ kfree(channels);
+ return -ENOMEM;
+ }
+
+ /* 0 = 802.11a
+ * 1 = 802.11b
+ * 2 = 802.11g
+ */
+
+ /* 5.2GHz channels start after the 2.4GHz channels */
+ modes[A].mode = MODE_IEEE80211A;
+ modes[A].channels = &channels[ARRAY_SIZE(iwl4965_eeprom_band_1)];
+ modes[A].rates = rates;
+ modes[A].num_rates = 8; /* just OFDM */
+ modes[A].rates = &rates[4];
+ modes[A].num_channels = 0;
+#ifdef CONFIG_IWL4965_HT
+ iwl4965_init_ht_hw_capab(&modes[A].ht_info, MODE_IEEE80211A);
+#endif
+
+ modes[B].mode = MODE_IEEE80211B;
+ modes[B].channels = channels;
+ modes[B].rates = rates;
+ modes[B].num_rates = 4; /* just CCK */
+ modes[B].num_channels = 0;
+
+ modes[G].mode = MODE_IEEE80211G;
+ modes[G].channels = channels;
+ modes[G].rates = rates;
+ modes[G].num_rates = 12; /* OFDM & CCK */
+ modes[G].num_channels = 0;
+#ifdef CONFIG_IWL4965_HT
+ iwl4965_init_ht_hw_capab(&modes[G].ht_info, MODE_IEEE80211G);
+#endif
+
+ priv->ieee_channels = channels;
+ priv->ieee_rates = rates;
+
+ iwl4965_init_hw_rates(priv, rates);
+
+ for (i = 0, geo_ch = channels; i < priv->channel_count; i++) {
+ ch = &priv->channel_info[i];
+
+ if (!is_channel_valid(ch)) {
+ IWL_DEBUG_INFO("Channel %d [%sGHz] is restricted -- "
+ "skipping.\n",
+ ch->channel, is_channel_a_band(ch) ?
+ "5.2" : "2.4");
+ continue;
+ }
+
+ if (is_channel_a_band(ch)) {
+ geo_ch = &modes[A].channels[modes[A].num_channels++];
+ } else {
+ geo_ch = &modes[B].channels[modes[B].num_channels++];
+ modes[G].num_channels++;
+ }
+
+ geo_ch->freq = ieee80211chan2mhz(ch->channel);
+ geo_ch->chan = ch->channel;
+ geo_ch->power_level = ch->max_power_avg;
+ geo_ch->antenna_max = 0xff;
+
+ if (is_channel_valid(ch)) {
+ geo_ch->flag = IEEE80211_CHAN_W_SCAN;
+ if (ch->flags & EEPROM_CHANNEL_IBSS)
+ geo_ch->flag |= IEEE80211_CHAN_W_IBSS;
+
+ if (ch->flags & EEPROM_CHANNEL_ACTIVE)
+ geo_ch->flag |= IEEE80211_CHAN_W_ACTIVE_SCAN;
+
+ if (ch->flags & EEPROM_CHANNEL_RADAR)
+ geo_ch->flag |= IEEE80211_CHAN_W_RADAR_DETECT;
+
+ if (ch->max_power_avg > priv->max_channel_txpower_limit)
+ priv->max_channel_txpower_limit =
+ ch->max_power_avg;
+ }
+
+ geo_ch->val = geo_ch->flag;
+ }
+
+ if ((modes[A].num_channels == 0) && priv->is_abg) {
+ printk(KERN_INFO DRV_NAME
+ ": Incorrectly detected BG card as ABG. Please send "
+ "your PCI ID 0x%04X:0x%04X to maintainer.\n",
+ priv->pci_dev->device, priv->pci_dev->subsystem_device);
+ priv->is_abg = 0;
+ }
+
+ printk(KERN_INFO DRV_NAME
+ ": Tunable channels: %d 802.11bg, %d 802.11a channels\n",
+ modes[G].num_channels, modes[A].num_channels);
+
+ /*
+ * NOTE: We register these in preference of order -- the
+ * stack doesn't currently (as of 7.0.6 / Apr 24 '07) pick
+ * a phymode based on rates or AP capabilities but seems to
+ * configure it purely on if the channel being configured
+ * is supported by a mode -- and the first match is taken
+ */
+
+ if (modes[G].num_channels)
+ ieee80211_register_hwmode(priv->hw, &modes[G]);
+ if (modes[B].num_channels)
+ ieee80211_register_hwmode(priv->hw, &modes[B]);
+ if (modes[A].num_channels)
+ ieee80211_register_hwmode(priv->hw, &modes[A]);
+
+ priv->modes = modes;
+ set_bit(STATUS_GEO_CONFIGURED, &priv->status);
+
+ return 0;
+}
+
+/******************************************************************************
+ *
+ * uCode download functions
+ *
+ ******************************************************************************/
+
+static void iwl4965_dealloc_ucode_pci(struct iwl4965_priv *priv)
+{
+ if (priv->ucode_code.v_addr != NULL) {
+ pci_free_consistent(priv->pci_dev,
+ priv->ucode_code.len,
+ priv->ucode_code.v_addr,
+ priv->ucode_code.p_addr);
+ priv->ucode_code.v_addr = NULL;
+ }
+ if (priv->ucode_data.v_addr != NULL) {
+ pci_free_consistent(priv->pci_dev,
+ priv->ucode_data.len,
+ priv->ucode_data.v_addr,
+ priv->ucode_data.p_addr);
+ priv->ucode_data.v_addr = NULL;
+ }
+ if (priv->ucode_data_backup.v_addr != NULL) {
+ pci_free_consistent(priv->pci_dev,
+ priv->ucode_data_backup.len,
+ priv->ucode_data_backup.v_addr,
+ priv->ucode_data_backup.p_addr);
+ priv->ucode_data_backup.v_addr = NULL;
+ }
+ if (priv->ucode_init.v_addr != NULL) {
+ pci_free_consistent(priv->pci_dev,
+ priv->ucode_init.len,
+ priv->ucode_init.v_addr,
+ priv->ucode_init.p_addr);
+ priv->ucode_init.v_addr = NULL;
+ }
+ if (priv->ucode_init_data.v_addr != NULL) {
+ pci_free_consistent(priv->pci_dev,
+ priv->ucode_init_data.len,
+ priv->ucode_init_data.v_addr,
+ priv->ucode_init_data.p_addr);
+ priv->ucode_init_data.v_addr = NULL;
+ }
+ if (priv->ucode_boot.v_addr != NULL) {
+ pci_free_consistent(priv->pci_dev,
+ priv->ucode_boot.len,
+ priv->ucode_boot.v_addr,
+ priv->ucode_boot.p_addr);
+ priv->ucode_boot.v_addr = NULL;
+ }
+}
+
+/**
+ * iwl4965_verify_inst_full - verify runtime uCode image in card vs. host,
+ * looking at all data.
+ */
+static int iwl4965_verify_inst_full(struct iwl4965_priv *priv, __le32 *image,
+ u32 len)
+{
+ u32 val;
+ u32 save_len = len;
+ int rc = 0;
+ u32 errcnt;
+
+ IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
+
+ rc = iwl4965_grab_nic_access(priv);
+ if (rc)
+ return rc;
+
+ iwl4965_write_direct32(priv, HBUS_TARG_MEM_RADDR, RTC_INST_LOWER_BOUND);
+
+ errcnt = 0;
+ for (; len > 0; len -= sizeof(u32), image++) {
+ /* read data comes through single port, auto-incr addr */
+ /* NOTE: Use the debugless read so we don't flood kernel log
+ * if IWL_DL_IO is set */
+ val = _iwl4965_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+ if (val != le32_to_cpu(*image)) {
+ IWL_ERROR("uCode INST section is invalid at "
+ "offset 0x%x, is 0x%x, s/b 0x%x\n",
+ save_len - len, val, le32_to_cpu(*image));
+ rc = -EIO;
+ errcnt++;
+ if (errcnt >= 20)
+ break;
+ }
+ }
+
+ iwl4965_release_nic_access(priv);
+
+ if (!errcnt)
+ IWL_DEBUG_INFO
+ ("ucode image in INSTRUCTION memory is good\n");
+
+ return rc;
+}
+
+
+/**
+ * iwl4965_verify_inst_sparse - verify runtime uCode image in card vs. host,
+ * using sample data 100 bytes apart. If these sample points are good,
+ * it's a pretty good bet that everything between them is good, too.
+ */
+static int iwl4965_verify_inst_sparse(struct iwl4965_priv *priv, __le32 *image, u32 len)
+{
+ u32 val;
+ int rc = 0;
+ u32 errcnt = 0;
+ u32 i;
+
+ IWL_DEBUG_INFO("ucode inst image size is %u\n", len);
+
+ rc = iwl4965_grab_nic_access(priv);
+ if (rc)
+ return rc;
+
+ for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
+ /* read data comes through single port, auto-incr addr */
+ /* NOTE: Use the debugless read so we don't flood kernel log
+ * if IWL_DL_IO is set */
+ iwl4965_write_direct32(priv, HBUS_TARG_MEM_RADDR,
+ i + RTC_INST_LOWER_BOUND);
+ val = _iwl4965_read_direct32(priv, HBUS_TARG_MEM_RDAT);
+ if (val != le32_to_cpu(*image)) {
+#if 0 /* Enable this if you want to see details */
+ IWL_ERROR("uCode INST section is invalid at "
+ "offset 0x%x, is 0x%x, s/b 0x%x\n",
+ i, val, *image);
+#endif
+ rc = -EIO;
+ errcnt++;
+ if (errcnt >= 3)
+ break;
+ }
+ }
+
+ iwl4965_release_nic_access(priv);
+
+ return rc;
+}
+
+
+/**
+ * iwl4965_verify_ucode - determine which instruction image is in SRAM,
+ * and verify its contents
+ */
+static int iwl4965_verify_ucode(struct iwl4965_priv *priv)
+{
+ __le32 *image;
+ u32 len;
+ int rc = 0;
+
+ /* Try bootstrap */
+ image = (__le32 *)priv->ucode_boot.v_addr;
+ len = priv->ucode_boot.len;
+ rc = iwl4965_verify_inst_sparse(priv, image, len);
+ if (rc == 0) {
+ IWL_DEBUG_INFO("Bootstrap uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ /* Try initialize */
+ image = (__le32 *)priv->ucode_init.v_addr;
+ len = priv->ucode_init.len;
+ rc = iwl4965_verify_inst_sparse(priv, image, len);
+ if (rc == 0) {
+ IWL_DEBUG_INFO("Initialize uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ /* Try runtime/protocol */
+ image = (__le32 *)priv->ucode_code.v_addr;
+ len = priv->ucode_code.len;
+ rc = iwl4965_verify_inst_sparse(priv, image, len);
+ if (rc == 0) {
+ IWL_DEBUG_INFO("Runtime uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ IWL_ERROR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
+
+ /* Since nothing seems to match, show first several data entries in
+ * instruction SRAM, so maybe visual inspection will give a clue.
+ * Selection of bootstrap image (vs. other images) is arbitrary. */
+ image = (__le32 *)priv->ucode_boot.v_addr;
+ len = priv->ucode_boot.len;
+ rc = iwl4965_verify_inst_full(priv, image, len);
+
+ return rc;
+}
+
+
+/* check contents of special bootstrap uCode SRAM */
+static int iwl4965_verify_bsm(struct iwl4965_priv *priv)
+{
+ __le32 *image = priv->ucode_boot.v_addr;
+ u32 len = priv->ucode_boot.len;
+ u32 reg;
+ u32 val;
+
+ IWL_DEBUG_INFO("Begin verify bsm\n");
+
+ /* verify BSM SRAM contents */
+ val = iwl4965_read_prph(priv, BSM_WR_DWCOUNT_REG);
+ for (reg = BSM_SRAM_LOWER_BOUND;
+ reg < BSM_SRAM_LOWER_BOUND + len;
+ reg += sizeof(u32), image ++) {
+ val = iwl4965_read_prph(priv, reg);
+ if (val != le32_to_cpu(*image)) {
+ IWL_ERROR("BSM uCode verification failed at "
+ "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
+ BSM_SRAM_LOWER_BOUND,
+ reg - BSM_SRAM_LOWER_BOUND, len,
+ val, le32_to_cpu(*image));
+ return -EIO;
+ }
+ }
+
+ IWL_DEBUG_INFO("BSM bootstrap uCode image OK\n");
+
+ return 0;
+}
+
+/**
+ * iwl4965_load_bsm - Load bootstrap instructions
+ *
+ * BSM operation:
+ *
+ * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
+ * in special SRAM that does not power down during RFKILL. When powering back
+ * up after power-saving sleeps (or during initial uCode load), the BSM loads
+ * the bootstrap program into the on-board processor, and starts it.
+ *
+ * The bootstrap program loads (via DMA) instructions and data for a new
+ * program from host DRAM locations indicated by the host driver in the
+ * BSM_DRAM_* registers. Once the new program is loaded, it starts
+ * automatically.
+ *
+ * When initializing the NIC, the host driver points the BSM to the
+ * "initialize" uCode image. This uCode sets up some internal data, then
+ * notifies host via "initialize alive" that it is complete.
+ *
+ * The host then replaces the BSM_DRAM_* pointer values to point to the
+ * normal runtime uCode instructions and a backup uCode data cache buffer
+ * (filled initially with starting data values for the on-board processor),
+ * then triggers the "initialize" uCode to load and launch the runtime uCode,
+ * which begins normal operation.
+ *
+ * When doing a power-save shutdown, runtime uCode saves data SRAM into
+ * the backup data cache in DRAM before SRAM is powered down.
+ *
+ * When powering back up, the BSM loads the bootstrap program. This reloads
+ * the runtime uCode instructions and the backup data cache into SRAM,
+ * and re-launches the runtime uCode from where it left off.
+ */
+static int iwl4965_load_bsm(struct iwl4965_priv *priv)
+{
+ __le32 *image = priv->ucode_boot.v_addr;
+ u32 len = priv->ucode_boot.len;
+ dma_addr_t pinst;
+ dma_addr_t pdata;
+ u32 inst_len;
+ u32 data_len;
+ int rc;
+ int i;
+ u32 done;
+ u32 reg_offset;
+
+ IWL_DEBUG_INFO("Begin load bsm\n");
+
+ /* make sure bootstrap program is no larger than BSM's SRAM size */
+ if (len > IWL_MAX_BSM_SIZE)
+ return -EINVAL;
+
+ /* Tell bootstrap uCode where to find the "Initialize" uCode
+ * in host DRAM ... host DRAM physical address bits 35:4 for 4965.
+ * NOTE: iwl4965_initialize_alive_start() will replace these values,
+ * after the "initialize" uCode has run, to point to
+ * runtime/protocol instructions and backup data cache. */
+ pinst = priv->ucode_init.p_addr >> 4;
+ pdata = priv->ucode_init_data.p_addr >> 4;
+ inst_len = priv->ucode_init.len;
+ data_len = priv->ucode_init_data.len;
+
+ rc = iwl4965_grab_nic_access(priv);
+ if (rc)
+ return rc;
+
+ iwl4965_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
+ iwl4965_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
+ iwl4965_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
+ iwl4965_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
+
+ /* Fill BSM memory with bootstrap instructions */
+ for (reg_offset = BSM_SRAM_LOWER_BOUND;
+ reg_offset < BSM_SRAM_LOWER_BOUND + len;
+ reg_offset += sizeof(u32), image++)
+ _iwl4965_write_prph(priv, reg_offset,
+ le32_to_cpu(*image));
+
+ rc = iwl4965_verify_bsm(priv);
+ if (rc) {
+ iwl4965_release_nic_access(priv);
+ return rc;
+ }
+
+ /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
+ iwl4965_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0);
+ iwl4965_write_prph(priv, BSM_WR_MEM_DST_REG,
+ RTC_INST_LOWER_BOUND);
+ iwl4965_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
+
+ /* Load bootstrap code into instruction SRAM now,
+ * to prepare to load "initialize" uCode */
+ iwl4965_write_prph(priv, BSM_WR_CTRL_REG,
+ BSM_WR_CTRL_REG_BIT_START);
+
+ /* Wait for load of bootstrap uCode to finish */
+ for (i = 0; i < 100; i++) {
+ done = iwl4965_read_prph(priv, BSM_WR_CTRL_REG);
+ if (!(done & BSM_WR_CTRL_REG_BIT_START))
+ break;
+ udelay(10);
+ }
+ if (i < 100)
+ IWL_DEBUG_INFO("BSM write complete, poll %d iterations\n", i);
+ else {
+ IWL_ERROR("BSM write did not complete!\n");
+ return -EIO;
+ }
+
+ /* Enable future boot loads whenever power management unit triggers it
+ * (e.g. when powering back up after power-save shutdown) */
+ iwl4965_write_prph(priv, BSM_WR_CTRL_REG,
+ BSM_WR_CTRL_REG_BIT_START_EN);
+
+ iwl4965_release_nic_access(priv);
+
+ return 0;
+}
+
+static void iwl4965_nic_start(struct iwl4965_priv *priv)
+{
+ /* Remove all resets to allow NIC to operate */
+ iwl4965_write32(priv, CSR_RESET, 0);
+}
+
+static int iwl4965_alloc_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc)
+{
+ desc->v_addr = pci_alloc_consistent(pci_dev, desc->len, &desc->p_addr);
+ return (desc->v_addr != NULL) ? 0 : -ENOMEM;
+}
+
+/**
+ * iwl4965_read_ucode - Read uCode images from disk file.
+ *
+ * Copy into buffers for card to fetch via bus-mastering
+ */
+static int iwl4965_read_ucode(struct iwl4965_priv *priv)
+{
+ struct iwl4965_ucode *ucode;
+ int ret;
+ const struct firmware *ucode_raw;
+ const char *name = "iwlwifi-4965" IWL4965_UCODE_API ".ucode";
+ u8 *src;
+ size_t len;
+ u32 ver, inst_size, data_size, init_size, init_data_size, boot_size;
+
+ /* Ask kernel firmware_class module to get the boot firmware off disk.
+ * request_firmware() is synchronous, file is in memory on return. */
+ ret = request_firmware(&ucode_raw, name, &priv->pci_dev->dev);
+ if (ret < 0) {
+ IWL_ERROR("%s firmware file req failed: Reason %d\n",
+ name, ret);
+ goto error;
+ }
+
+ IWL_DEBUG_INFO("Got firmware '%s' file (%zd bytes) from disk\n",
+ name, ucode_raw->size);
+
+ /* Make sure that we got at least our header! */
+ if (ucode_raw->size < sizeof(*ucode)) {
+ IWL_ERROR("File size way too small!\n");
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ /* Data from ucode file: header followed by uCode images */
+ ucode = (void *)ucode_raw->data;
+
+ ver = le32_to_cpu(ucode->ver);
+ inst_size = le32_to_cpu(ucode->inst_size);
+ data_size = le32_to_cpu(ucode->data_size);
+ init_size = le32_to_cpu(ucode->init_size);
+ init_data_size = le32_to_cpu(ucode->init_data_size);
+ boot_size = le32_to_cpu(ucode->boot_size);
+
+ IWL_DEBUG_INFO("f/w package hdr ucode version = 0x%x\n", ver);
+ IWL_DEBUG_INFO("f/w package hdr runtime inst size = %u\n",
+ inst_size);
+ IWL_DEBUG_INFO("f/w package hdr runtime data size = %u\n",
+ data_size);
+ IWL_DEBUG_INFO("f/w package hdr init inst size = %u\n",
+ init_size);
+ IWL_DEBUG_INFO("f/w package hdr init data size = %u\n",
+ init_data_size);
+ IWL_DEBUG_INFO("f/w package hdr boot inst size = %u\n",
+ boot_size);
+
+ /* Verify size of file vs. image size info in file's header */
+ if (ucode_raw->size < sizeof(*ucode) +
+ inst_size + data_size + init_size +
+ init_data_size + boot_size) {
+
+ IWL_DEBUG_INFO("uCode file size %d too small\n",
+ (int)ucode_raw->size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ /* Verify that uCode images will fit in card's SRAM */
+ if (inst_size > IWL_MAX_INST_SIZE) {
+ IWL_DEBUG_INFO("uCode instr len %d too large to fit in\n",
+ inst_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ if (data_size > IWL_MAX_DATA_SIZE) {
+ IWL_DEBUG_INFO("uCode data len %d too large to fit in\n",
+ data_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (init_size > IWL_MAX_INST_SIZE) {
+ IWL_DEBUG_INFO
+ ("uCode init instr len %d too large to fit in\n",
+ init_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (init_data_size > IWL_MAX_DATA_SIZE) {
+ IWL_DEBUG_INFO
+ ("uCode init data len %d too large to fit in\n",
+ init_data_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (boot_size > IWL_MAX_BSM_SIZE) {
+ IWL_DEBUG_INFO
+ ("uCode boot instr len %d too large to fit in\n",
+ boot_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ /* Allocate ucode buffers for card's bus-master loading ... */
+
+ /* Runtime instructions and 2 copies of data:
+ * 1) unmodified from disk
+ * 2) backup cache for save/restore during power-downs */
+ priv->ucode_code.len = inst_size;
+ iwl4965_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
+
+ priv->ucode_data.len = data_size;
+ iwl4965_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
+
+ priv->ucode_data_backup.len = data_size;
+ iwl4965_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
+
+ /* Initialization instructions and data */
+ if (init_size && init_data_size) {
+ priv->ucode_init.len = init_size;
+ iwl4965_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
+
+ priv->ucode_init_data.len = init_data_size;
+ iwl4965_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
+
+ if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
+ goto err_pci_alloc;
+ }
+
+ /* Bootstrap (instructions only, no data) */
+ if (boot_size) {
+ priv->ucode_boot.len = boot_size;
+ iwl4965_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
+
+ if (!priv->ucode_boot.v_addr)
+ goto err_pci_alloc;
+ }
+
+ /* Copy images into buffers for card's bus-master reads ... */
+
+ /* Runtime instructions (first block of data in file) */
+ src = &ucode->data[0];
+ len = priv->ucode_code.len;
+ IWL_DEBUG_INFO("Copying (but not loading) uCode instr len %Zd\n", len);
+ memcpy(priv->ucode_code.v_addr, src, len);
+ IWL_DEBUG_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
+ priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
+
+ /* Runtime data (2nd block)
+ * NOTE: Copy into backup buffer will be done in iwl4965_up() */
+ src = &ucode->data[inst_size];
+ len = priv->ucode_data.len;
+ IWL_DEBUG_INFO("Copying (but not loading) uCode data len %Zd\n", len);
+ memcpy(priv->ucode_data.v_addr, src, len);
+ memcpy(priv->ucode_data_backup.v_addr, src, len);
+
+ /* Initialization instructions (3rd block) */
+ if (init_size) {
+ src = &ucode->data[inst_size + data_size];
+ len = priv->ucode_init.len;
+ IWL_DEBUG_INFO("Copying (but not loading) init instr len %Zd\n",
+ len);
+ memcpy(priv->ucode_init.v_addr, src, len);
+ }
+
+ /* Initialization data (4th block) */
+ if (init_data_size) {
+ src = &ucode->data[inst_size + data_size + init_size];
+ len = priv->ucode_init_data.len;
+ IWL_DEBUG_INFO("Copying (but not loading) init data len %Zd\n",
+ len);
+ memcpy(priv->ucode_init_data.v_addr, src, len);
+ }
+
+ /* Bootstrap instructions (5th block) */
+ src = &ucode->data[inst_size + data_size + init_size + init_data_size];
+ len = priv->ucode_boot.len;
+ IWL_DEBUG_INFO("Copying (but not loading) boot instr len %Zd\n", len);
+ memcpy(priv->ucode_boot.v_addr, src, len);
+
+ /* We have our copies now, allow OS release its copies */
+ release_firmware(ucode_raw);
+ return 0;
+
+ err_pci_alloc:
+ IWL_ERROR("failed to allocate pci memory\n");
+ ret = -ENOMEM;
+ iwl4965_dealloc_ucode_pci(priv);
+
+ err_release:
+ release_firmware(ucode_raw);
+
+ error:
+ return ret;
+}
+
+
+/**
+ * iwl4965_set_ucode_ptrs - Set uCode address location
+ *
+ * Tell initialization uCode where to find runtime uCode.
+ *
+ * BSM registers initially contain pointers to initialization uCode.
+ * We need to replace them to load runtime uCode inst and data,
+ * and to save runtime data when powering down.
+ */
+static int iwl4965_set_ucode_ptrs(struct iwl4965_priv *priv)
+{
+ dma_addr_t pinst;
+ dma_addr_t pdata;
+ int rc = 0;
+ unsigned long flags;
+
+ /* bits 35:4 for 4965 */
+ pinst = priv->ucode_code.p_addr >> 4;
+ pdata = priv->ucode_data_backup.p_addr >> 4;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ rc = iwl4965_grab_nic_access(priv);
+ if (rc) {
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return rc;
+ }
+
+ /* Tell bootstrap uCode where to find image to load */
+ iwl4965_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
+ iwl4965_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
+ iwl4965_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
+ priv->ucode_data.len);
+
+ /* Inst bytecount must be last to set up, bit 31 signals uCode
+ * that all new ptr/size info is in place */
+ iwl4965_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
+ priv->ucode_code.len | BSM_DRAM_INST_LOAD);
+
+ iwl4965_release_nic_access(priv);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
+
+ return rc;
+}
+
+/**
+ * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received
+ *
+ * Called after REPLY_ALIVE notification received from "initialize" uCode.
+ *
+ * The 4965 "initialize" ALIVE reply contains calibration data for:
+ * Voltage, temperature, and MIMO tx gain correction, now stored in priv
+ * (3945 does not contain this data).
+ *
+ * Tell "initialize" uCode to go ahead and load the runtime uCode.
+*/
+static void iwl4965_init_alive_start(struct iwl4965_priv *priv)
+{
+ /* Check alive response for "valid" sign from uCode */
+ if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
+ /* We had an error bringing up the hardware, so take it
+ * all the way back down so we can try again */
+ IWL_DEBUG_INFO("Initialize Alive failed.\n");
+ goto restart;
+ }
+
+ /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
+ * This is a paranoid check, because we would not have gotten the
+ * "initialize" alive if code weren't properly loaded. */
+ if (iwl4965_verify_ucode(priv)) {
+ /* Runtime instruction load was bad;
+ * take it all the way back down so we can try again */
+ IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
+ goto restart;
+ }
+
+ /* Calculate temperature */
+ priv->temperature = iwl4965_get_temperature(priv);
+
+ /* Send pointers to protocol/runtime uCode image ... init code will
+ * load and launch runtime uCode, which will send us another "Alive"
+ * notification. */
+ IWL_DEBUG_INFO("Initialization Alive received.\n");
+ if (iwl4965_set_ucode_ptrs(priv)) {
+ /* Runtime instruction load won't happen;
+ * take it all the way back down so we can try again */
+ IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
+ goto restart;
+ }
+ return;
+
+ restart:
+ queue_work(priv->workqueue, &priv->restart);
+}
+
+
+/**
+ * iwl4965_alive_start - called after REPLY_ALIVE notification received
+ * from protocol/runtime uCode (initialization uCode's
+ * Alive gets handled by iwl4965_init_alive_start()).
+ */
+static void iwl4965_alive_start(struct iwl4965_priv *priv)
+{
+ int rc = 0;
+
+ IWL_DEBUG_INFO("Runtime Alive received.\n");
+
+ if (priv->card_alive.is_valid != UCODE_VALID_OK) {
+ /* We had an error bringing up the hardware, so take it
+ * all the way back down so we can try again */
+ IWL_DEBUG_INFO("Alive failed.\n");
+ goto restart;
+ }
+
+ /* Initialize uCode has loaded Runtime uCode ... verify inst image.
+ * This is a paranoid check, because we would not have gotten the
+ * "runtime" alive if code weren't properly loaded. */
+ if (iwl4965_verify_ucode(priv)) {
+ /* Runtime instruction load was bad;
+ * take it all the way back down so we can try again */
+ IWL_DEBUG_INFO("Bad runtime uCode load.\n");
+ goto restart;
+ }
+
+ iwl4965_clear_stations_table(priv);
+
+ rc = iwl4965_alive_notify(priv);
+ if (rc) {
+ IWL_WARNING("Could not complete ALIVE transition [ntf]: %d\n",
+ rc);
+ goto restart;
+ }
+
+ /* After the ALIVE response, we can send host commands to 4965 uCode */
+ set_bit(STATUS_ALIVE, &priv->status);
+
+ /* Clear out the uCode error bit if it is set */
+ clear_bit(STATUS_FW_ERROR, &priv->status);
+
+ rc = iwl4965_init_channel_map(priv);
+ if (rc) {
+ IWL_ERROR("initializing regulatory failed: %d\n", rc);
+ return;
+ }
+
+ iwl4965_init_geos(priv);
+
+ if (iwl4965_is_rfkill(priv))
+ return;
+
+ if (!priv->mac80211_registered) {
+ /* Unlock so any user space entry points can call back into
+ * the driver without a deadlock... */
+ mutex_unlock(&priv->mutex);
+ iwl4965_rate_control_register(priv->hw);
+ rc = ieee80211_register_hw(priv->hw);
+ priv->hw->conf.beacon_int = 100;
+ mutex_lock(&priv->mutex);
+
+ if (rc) {
+ iwl4965_rate_control_unregister(priv->hw);
+ IWL_ERROR("Failed to register network "
+ "device (error %d)\n", rc);
+ return;
+ }
+
+ priv->mac80211_registered = 1;
+
+ iwl4965_reset_channel_flag(priv);
+ } else
+ ieee80211_start_queues(priv->hw);
+
+ priv->active_rate = priv->rates_mask;
+ priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
+
+ iwl4965_send_power_mode(priv, IWL_POWER_LEVEL(priv->power_mode));
+
+ if (iwl4965_is_associated(priv)) {
+ struct iwl4965_rxon_cmd *active_rxon =
+ (struct iwl4965_rxon_cmd *)(&priv->active_rxon);
+
+ memcpy(&priv->staging_rxon, &priv->active_rxon,
+ sizeof(priv->staging_rxon));
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ } else {
+ /* Initialize our rx_config data */
+ iwl4965_connection_init_rx_config(priv);
+ memcpy(priv->staging_rxon.node_addr, priv->mac_addr, ETH_ALEN);
+ }
+
+ /* Configure Bluetooth device coexistence support */
+ iwl4965_send_bt_config(priv);
+
+ /* Configure the adapter for unassociated operation */
+ iwl4965_commit_rxon(priv);
+
+ /* At this point, the NIC is initialized and operational */
+ priv->notif_missed_beacons = 0;
+ set_bit(STATUS_READY, &priv->status);
+
+ iwl4965_rf_kill_ct_config(priv);
+ IWL_DEBUG_INFO("ALIVE processing complete.\n");
+
+ if (priv->error_recovering)
+ iwl4965_error_recovery(priv);
+
+ return;
+
+ restart:
+ queue_work(priv->workqueue, &priv->restart);
+}
+
+static void iwl4965_cancel_deferred_work(struct iwl4965_priv *priv);
+
+static void __iwl4965_down(struct iwl4965_priv *priv)
+{
+ unsigned long flags;
+ int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
+ struct ieee80211_conf *conf = NULL;
+
+ IWL_DEBUG_INFO(DRV_NAME " is going down\n");
+
+ conf = ieee80211_get_hw_conf(priv->hw);
+
+ if (!exit_pending)
+ set_bit(STATUS_EXIT_PENDING, &priv->status);
+
+ iwl4965_clear_stations_table(priv);
+
+ /* Unblock any waiting calls */
+ wake_up_interruptible_all(&priv->wait_command_queue);
+
+ iwl4965_cancel_deferred_work(priv);
+
+ /* Wipe out the EXIT_PENDING status bit if we are not actually
+ * exiting the module */
+ if (!exit_pending)
+ clear_bit(STATUS_EXIT_PENDING, &priv->status);
+
+ /* stop and reset the on-board processor */
+ iwl4965_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
+
+ /* tell the device to stop sending interrupts */
+ iwl4965_disable_interrupts(priv);
+
+ if (priv->mac80211_registered)
+ ieee80211_stop_queues(priv->hw);
+
+ /* If we have not previously called iwl4965_init() then
+ * clear all bits but the RF Kill and SUSPEND bits and return */
+ if (!iwl4965_is_init(priv)) {
+ priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
+ STATUS_RF_KILL_HW |
+ test_bit(STATUS_RF_KILL_SW, &priv->status) <<
+ STATUS_RF_KILL_SW |
+ test_bit(STATUS_IN_SUSPEND, &priv->status) <<
+ STATUS_IN_SUSPEND;
+ goto exit;
+ }
+
+ /* ...otherwise clear out all the status bits but the RF Kill and
+ * SUSPEND bits and continue taking the NIC down. */
+ priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
+ STATUS_RF_KILL_HW |
+ test_bit(STATUS_RF_KILL_SW, &priv->status) <<
+ STATUS_RF_KILL_SW |
+ test_bit(STATUS_IN_SUSPEND, &priv->status) <<
+ STATUS_IN_SUSPEND |
+ test_bit(STATUS_FW_ERROR, &priv->status) <<
+ STATUS_FW_ERROR;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl4965_clear_bit(priv, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ iwl4965_hw_txq_ctx_stop(priv);
+ iwl4965_hw_rxq_stop(priv);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (!iwl4965_grab_nic_access(priv)) {
+ iwl4965_write_prph(priv, APMG_CLK_DIS_REG,
+ APMG_CLK_VAL_DMA_CLK_RQT);
+ iwl4965_release_nic_access(priv);
+ }
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ udelay(5);
+
+ iwl4965_hw_nic_stop_master(priv);
+ iwl4965_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
+ iwl4965_hw_nic_reset(priv);
+
+ exit:
+ memset(&priv->card_alive, 0, sizeof(struct iwl4965_alive_resp));
+
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+ priv->ibss_beacon = NULL;
+
+ /* clear out any free frames */
+ iwl4965_clear_free_frames(priv);
+}
+
+static void iwl4965_down(struct iwl4965_priv *priv)
+{
+ mutex_lock(&priv->mutex);
+ __iwl4965_down(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+#define MAX_HW_RESTARTS 5
+
+static int __iwl4965_up(struct iwl4965_priv *priv)
+{
+ DECLARE_MAC_BUF(mac);
+ int rc, i;
+ u32 hw_rf_kill = 0;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+ IWL_WARNING("Exit pending; will not bring the NIC up\n");
+ return -EIO;
+ }
+
+ if (test_bit(STATUS_RF_KILL_SW, &priv->status)) {
+ IWL_WARNING("Radio disabled by SW RF kill (module "
+ "parameter)\n");
+ return 0;
+ }
+
+ iwl4965_write32(priv, CSR_INT, 0xFFFFFFFF);
+
+ rc = iwl4965_hw_nic_init(priv);
+ if (rc) {
+ IWL_ERROR("Unable to int nic\n");
+ return rc;
+ }
+
+ /* make sure rfkill handshake bits are cleared */
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+ /* clear (again), then enable host interrupts */
+ iwl4965_write32(priv, CSR_INT, 0xFFFFFFFF);
+ iwl4965_enable_interrupts(priv);
+
+ /* really make sure rfkill handshake bits are cleared */
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+ /* Copy original ucode data image from disk into backup cache.
+ * This will be used to initialize the on-board processor's
+ * data SRAM for a clean start when the runtime program first loads. */
+ memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
+ priv->ucode_data.len);
+
+ /* If platform's RF_KILL switch is set to KILL,
+ * wait for BIT_INT_RF_KILL interrupt before loading uCode
+ * and getting things started */
+ if (!(iwl4965_read32(priv, CSR_GP_CNTRL) &
+ CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
+ hw_rf_kill = 1;
+
+ if (test_bit(STATUS_RF_KILL_HW, &priv->status) || hw_rf_kill) {
+ IWL_WARNING("Radio disabled by HW RF Kill switch\n");
+ return 0;
+ }
+
+ for (i = 0; i < MAX_HW_RESTARTS; i++) {
+
+ iwl4965_clear_stations_table(priv);
+
+ /* load bootstrap state machine,
+ * load bootstrap program into processor's memory,
+ * prepare to load the "initialize" uCode */
+ rc = iwl4965_load_bsm(priv);
+
+ if (rc) {
+ IWL_ERROR("Unable to set up bootstrap uCode: %d\n", rc);
+ continue;
+ }
+
+ /* start card; "initialize" will load runtime ucode */
+ iwl4965_nic_start(priv);
+
+ /* MAC Address location in EEPROM is same for 3945/4965 */
+ get_eeprom_mac(priv, priv->mac_addr);
+ IWL_DEBUG_INFO("MAC address: %s\n",
+ print_mac(mac, priv->mac_addr));
+
+ SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
+
+ IWL_DEBUG_INFO(DRV_NAME " is coming up\n");
+
+ return 0;
+ }
+
+ set_bit(STATUS_EXIT_PENDING, &priv->status);
+ __iwl4965_down(priv);
+
+ /* tried to restart and config the device for as long as our
+ * patience could withstand */
+ IWL_ERROR("Unable to initialize device after %d attempts.\n", i);
+ return -EIO;
+}
+
+
+/*****************************************************************************
+ *
+ * Workqueue callbacks
+ *
+ *****************************************************************************/
+
+static void iwl4965_bg_init_alive_start(void *p)
+{
+ struct iwl4965_priv *priv = p;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ iwl4965_init_alive_start(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl4965_bg_alive_start(void *p)
+{
+ struct iwl4965_priv *priv = p;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ iwl4965_alive_start(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl4965_bg_rf_kill(void *p)
+{
+ struct iwl4965_priv *priv = p;
+
+ wake_up_interruptible(&priv->wait_command_queue);
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+
+ if (!iwl4965_is_rfkill(priv)) {
+ IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL,
+ "HW and/or SW RF Kill no longer active, restarting "
+ "device\n");
+ if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
+ queue_work(priv->workqueue, &priv->restart);
+ } else {
+
+ if (!test_bit(STATUS_RF_KILL_HW, &priv->status))
+ IWL_DEBUG_RF_KILL("Can not turn radio back on - "
+ "disabled by SW switch\n");
+ else
+ IWL_WARNING("Radio Frequency Kill Switch is On:\n"
+ "Kill switch must be turned off for "
+ "wireless networking to work.\n");
+ }
+ mutex_unlock(&priv->mutex);
+}
+
+#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
+
+static void iwl4965_bg_scan_check(void *p)
+{
+ struct iwl4965_priv *priv = p;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ if (test_bit(STATUS_SCANNING, &priv->status) ||
+ test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+ IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN,
+ "Scan completion watchdog resetting adapter (%dms)\n",
+ jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
+
+ if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
+ iwl4965_send_scan_abort(priv);
+ }
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl4965_bg_request_scan(void *p)
+{
+ struct iwl4965_priv *priv = p;
+ struct iwl4965_host_cmd cmd = {
+ .id = REPLY_SCAN_CMD,
+ .len = sizeof(struct iwl4965_scan_cmd),
+ .meta.flags = CMD_SIZE_HUGE,
+ };
+ int rc = 0;
+ struct iwl4965_scan_cmd *scan;
+ struct ieee80211_conf *conf = NULL;
+ u8 direct_mask;
+ int phymode;
+
+ conf = ieee80211_get_hw_conf(priv->hw);
+
+ mutex_lock(&priv->mutex);
+
+ if (!iwl4965_is_ready(priv)) {
+ IWL_WARNING("request scan called when driver not ready.\n");
+ goto done;
+ }
+
+ /* Make sure the scan wasn't cancelled before this queued work
+ * was given the chance to run... */
+ if (!test_bit(STATUS_SCANNING, &priv->status))
+ goto done;
+
+ /* This should never be called or scheduled if there is currently
+ * a scan active in the hardware. */
+ if (test_bit(STATUS_SCAN_HW, &priv->status)) {
+ IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
+ "Ignoring second request.\n");
+ rc = -EIO;
+ goto done;
+ }
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
+ IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
+ goto done;
+ }
+
+ if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
+ IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
+ goto done;
+ }
+
+ if (iwl4965_is_rfkill(priv)) {
+ IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
+ goto done;
+ }
+
+ if (!test_bit(STATUS_READY, &priv->status)) {
+ IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
+ goto done;
+ }
+
+ if (!priv->scan_bands) {
+ IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
+ goto done;
+ }
+
+ if (!priv->scan) {
+ priv->scan = kmalloc(sizeof(struct iwl4965_scan_cmd) +
+ IWL_MAX_SCAN_SIZE, GFP_KERNEL);
+ if (!priv->scan) {
+ rc = -ENOMEM;
+ goto done;
+ }
+ }
+ scan = priv->scan;
+ memset(scan, 0, sizeof(struct iwl4965_scan_cmd) + IWL_MAX_SCAN_SIZE);
+
+ scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
+ scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
+
+ if (iwl4965_is_associated(priv)) {
+ u16 interval = 0;
+ u32 extra;
+ u32 suspend_time = 100;
+ u32 scan_suspend_time = 100;
+ unsigned long flags;
+
+ IWL_DEBUG_INFO("Scanning while associated...\n");
+
+ spin_lock_irqsave(&priv->lock, flags);
+ interval = priv->beacon_int;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ scan->suspend_time = 0;
+ scan->max_out_time = cpu_to_le32(200 * 1024);
+ if (!interval)
+ interval = suspend_time;
+
+ extra = (suspend_time / interval) << 22;
+ scan_suspend_time = (extra |
+ ((suspend_time % interval) * 1024));
+ scan->suspend_time = cpu_to_le32(scan_suspend_time);
+ IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
+ scan_suspend_time, interval);
+ }
+
+ /* We should add the ability for user to lock to PASSIVE ONLY */
+ if (priv->one_direct_scan) {
+ IWL_DEBUG_SCAN
+ ("Kicking off one direct scan for '%s'\n",
+ iwl4965_escape_essid(priv->direct_ssid,
+ priv->direct_ssid_len));
+ scan->direct_scan[0].id = WLAN_EID_SSID;
+ scan->direct_scan[0].len = priv->direct_ssid_len;
+ memcpy(scan->direct_scan[0].ssid,
+ priv->direct_ssid, priv->direct_ssid_len);
+ direct_mask = 1;
+ } else if (!iwl4965_is_associated(priv) && priv->essid_len) {
+ scan->direct_scan[0].id = WLAN_EID_SSID;
+ scan->direct_scan[0].len = priv->essid_len;
+ memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len);
+ direct_mask = 1;
+ } else
+ direct_mask = 0;
+
+ /* We don't build a direct scan probe request; the uCode will do
+ * that based on the direct_mask added to each channel entry */
+ scan->tx_cmd.len = cpu_to_le16(
+ iwl4965_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
+ IWL_MAX_SCAN_SIZE - sizeof(scan), 0));
+ scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
+ scan->tx_cmd.sta_id = priv->hw_setting.bcast_sta_id;
+ scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+
+ /* flags + rate selection */
+
+ scan->tx_cmd.tx_flags |= cpu_to_le32(0x200);
+
+ switch (priv->scan_bands) {
+ case 2:
+ scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
+ scan->tx_cmd.rate_n_flags =
+ iwl4965_hw_set_rate_n_flags(IWL_RATE_1M_PLCP,
+ RATE_MCS_ANT_B_MSK|RATE_MCS_CCK_MSK);
+
+ scan->good_CRC_th = 0;
+ phymode = MODE_IEEE80211G;
+ break;
+
+ case 1:
+ scan->tx_cmd.rate_n_flags =
+ iwl4965_hw_set_rate_n_flags(IWL_RATE_6M_PLCP,
+ RATE_MCS_ANT_B_MSK);
+ scan->good_CRC_th = IWL_GOOD_CRC_TH;
+ phymode = MODE_IEEE80211A;
+ break;
+
+ default:
+ IWL_WARNING("Invalid scan band count\n");
+ goto done;
+ }
+
+ /* select Rx chains */
+
+ /* Force use of chains B and C (0x6) for scan Rx.
+ * Avoid A (0x1) because of its off-channel reception on A-band.
+ * MIMO is not used here, but value is required to make uCode happy. */
+ scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK |
+ cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) |
+ (0x6 << RXON_RX_CHAIN_FORCE_SEL_POS) |
+ (0x7 << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS));
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR)
+ scan->filter_flags = RXON_FILTER_PROMISC_MSK;
+
+ if (direct_mask)
+ IWL_DEBUG_SCAN
+ ("Initiating direct scan for %s.\n",
+ iwl4965_escape_essid(priv->essid, priv->essid_len));
+ else
+ IWL_DEBUG_SCAN("Initiating indirect scan.\n");
+
+ scan->channel_count =
+ iwl4965_get_channels_for_scan(
+ priv, phymode, 1, /* active */
+ direct_mask,
+ (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
+
+ cmd.len += le16_to_cpu(scan->tx_cmd.len) +
+ scan->channel_count * sizeof(struct iwl4965_scan_channel);
+ cmd.data = scan;
+ scan->len = cpu_to_le16(cmd.len);
+
+ set_bit(STATUS_SCAN_HW, &priv->status);
+ rc = iwl4965_send_cmd_sync(priv, &cmd);
+ if (rc)
+ goto done;
+
+ queue_delayed_work(priv->workqueue, &priv->scan_check,
+ IWL_SCAN_CHECK_WATCHDOG);
+
+ mutex_unlock(&priv->mutex);
+ return;
+
+ done:
+ /* inform mac80211 scan aborted */
+ queue_work(priv->workqueue, &priv->scan_completed);
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl4965_bg_up(void *p)
+{
+ struct iwl4965_priv *priv = p;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ __iwl4965_up(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl4965_bg_restart(void *p)
+{
+ struct iwl4965_priv *priv = p;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ iwl4965_down(priv);
+ queue_work(priv->workqueue, &priv->up);
+}
+
+static void iwl4965_bg_rx_replenish(void *p)
+{
+ struct iwl4965_priv *priv = p;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+ iwl4965_rx_replenish(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+#define IWL_DELAY_NEXT_SCAN (HZ*2)
+
+static void iwl4965_bg_post_associate(void *p)
+{
+ struct iwl4965_priv *priv = p;
+
+ int rc = 0;
+ struct ieee80211_conf *conf = NULL;
+ DECLARE_MAC_BUF(mac);
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+ IWL_ERROR("%s Should not be called in AP mode\n", __FUNCTION__);
+ return;
+ }
+
+ IWL_DEBUG_ASSOC("Associated as %d to: %s\n",
+ priv->assoc_id,
+ print_mac(mac, priv->active_rxon.bssid_addr));
+
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ mutex_lock(&priv->mutex);
+
+ if (!priv->interface_id || !priv->is_open) {
+ mutex_unlock(&priv->mutex);
+ return;
+ }
+ iwl4965_scan_cancel_timeout(priv, 200);
+
+ conf = ieee80211_get_hw_conf(priv->hw);
+
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+
+ memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
+ iwl4965_setup_rxon_timing(priv);
+ rc = iwl4965_send_cmd_pdu(priv, REPLY_RXON_TIMING,
+ sizeof(priv->rxon_timing), &priv->rxon_timing);
+ if (rc)
+ IWL_WARNING("REPLY_RXON_TIMING failed - "
+ "Attempting to continue.\n");
+
+ priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
+
+#ifdef CONFIG_IWL4965_HT
+ if (priv->current_ht_config.is_ht)
+ iwl4965_set_rxon_ht(priv, &priv->current_ht_config);
+#endif /* CONFIG_IWL4965_HT*/
+ iwl4965_set_rxon_chain(priv);
+ priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
+
+ IWL_DEBUG_ASSOC("assoc id %d beacon interval %d\n",
+ priv->assoc_id, priv->beacon_int);
+
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+ if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ }
+
+ iwl4965_commit_rxon(priv);
+
+ switch (priv->iw_mode) {
+ case IEEE80211_IF_TYPE_STA:
+ iwl4965_rate_scale_init(priv->hw, IWL_AP_ID);
+ break;
+
+ case IEEE80211_IF_TYPE_IBSS:
+
+ /* clear out the station table */
+ iwl4965_clear_stations_table(priv);
+
+ iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0);
+ iwl4965_rxon_add_station(priv, priv->bssid, 0);
+ iwl4965_rate_scale_init(priv->hw, IWL_STA_ID);
+ iwl4965_send_beacon_cmd(priv);
+
+ break;
+
+ default:
+ IWL_ERROR("%s Should not be called in %d mode\n",
+ __FUNCTION__, priv->iw_mode);
+ break;
+ }
+
+ iwl4965_sequence_reset(priv);
+
+#ifdef CONFIG_IWL4965_SENSITIVITY
+ /* Enable Rx differential gain and sensitivity calibrations */
+ iwl4965_chain_noise_reset(priv);
+ priv->start_calib = 1;
+#endif /* CONFIG_IWL4965_SENSITIVITY */
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+ priv->assoc_station_added = 1;
+
+#ifdef CONFIG_IWL4965_QOS
+ iwl4965_activate_qos(priv, 0);
+#endif /* CONFIG_IWL4965_QOS */
+ /* we have just associated, don't start scan too early */
+ priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
+ mutex_unlock(&priv->mutex);
+}
+
+static void iwl4965_bg_abort_scan(void *p)
+{
+ struct iwl4965_priv *priv = p;
+
+ if (!iwl4965_is_ready(priv))
+ return;
+
+ mutex_lock(&priv->mutex);
+
+ set_bit(STATUS_SCAN_ABORTING, &priv->status);
+ iwl4965_send_scan_abort(priv);
+
+ mutex_unlock(&priv->mutex);
+}
+
+static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
+
+static void iwl4965_bg_scan_completed(void *p)
+{
+ struct iwl4965_priv *priv = p;
+
+ IWL_DEBUG(IWL_DL_INFO | IWL_DL_SCAN, "SCAN complete scan\n");
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return;
+
+ if (priv->cache_conf)
+ iwl4965_mac_config(priv->hw, priv->cache_conf);
+
+ ieee80211_scan_completed(priv->hw);
+
+ /* Since setting the TXPOWER may have been deferred while
+ * performing the scan, fire one off */
+ mutex_lock(&priv->mutex);
+ iwl4965_hw_reg_send_txpower(priv);
+ mutex_unlock(&priv->mutex);
+}
+
+/*****************************************************************************
+ *
+ * mac80211 entry point functions
+ *
+ *****************************************************************************/
+
+static int iwl4965_mac_start(struct ieee80211_hw *hw)
+{
+ struct iwl4965_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ /* we should be verifying the device is ready to be opened */
+ mutex_lock(&priv->mutex);
+
+ priv->is_open = 1;
+
+ if (!iwl4965_is_rfkill(priv))
+ ieee80211_start_queues(priv->hw);
+
+ mutex_unlock(&priv->mutex);
+ IWL_DEBUG_MAC80211("leave\n");
+ return 0;
+}
+
+static void iwl4965_mac_stop(struct ieee80211_hw *hw)
+{
+ struct iwl4965_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+
+ mutex_lock(&priv->mutex);
+ /* stop mac, cancel any scan request and clear
+ * RXON_FILTER_ASSOC_MSK BIT
+ */
+ priv->is_open = 0;
+ if (!iwl4965_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF not ready\n");
+ mutex_unlock(&priv->mutex);
+ return;
+ }
+
+ iwl4965_scan_cancel_timeout(priv, 100);
+ cancel_delayed_work(&priv->post_associate);
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+ mutex_unlock(&priv->mutex);
+
+ IWL_DEBUG_MAC80211("leave\n");
+}
+
+static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_tx_control *ctl)
+{
+ struct iwl4965_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
+ IWL_DEBUG_MAC80211("leave - monitor\n");
+ return -1;
+ }
+
+ IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
+ ctl->tx_rate);
+
+ if (iwl4965_tx_skb(priv, skb, ctl))
+ dev_kfree_skb_any(skb);
+
+ IWL_DEBUG_MAC80211("leave\n");
+ return 0;
+}
+
+static int iwl4965_mac_add_interface(struct ieee80211_hw *hw,
+ struct ieee80211_if_init_conf *conf)
+{
+ struct iwl4965_priv *priv = hw->priv;
+ unsigned long flags;
+ DECLARE_MAC_BUF(mac);
+
+ IWL_DEBUG_MAC80211("enter: id %d, type %d\n", conf->if_id, conf->type);
+
+ if (priv->interface_id) {
+ IWL_DEBUG_MAC80211("leave - interface_id != 0\n");
+ return 0;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->interface_id = conf->if_id;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ mutex_lock(&priv->mutex);
+
+ if (conf->mac_addr) {
+ IWL_DEBUG_MAC80211("Set %s\n", print_mac(mac, conf->mac_addr));
+ memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
+ }
+ iwl4965_set_mode(priv, conf->type);
+
+ IWL_DEBUG_MAC80211("leave\n");
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+
+/**
+ * iwl4965_mac_config - mac80211 config callback
+ *
+ * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
+ * be set inappropriately and the driver currently sets the hardware up to
+ * use it whenever needed.
+ */
+static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+{
+ struct iwl4965_priv *priv = hw->priv;
+ const struct iwl4965_channel_info *ch_info;
+ unsigned long flags;
+ int ret = 0;
+
+ mutex_lock(&priv->mutex);
+ IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel);
+
+ if (!iwl4965_is_ready(priv)) {
+ IWL_DEBUG_MAC80211("leave - not ready\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ /* TODO: Figure out how to get ieee80211_local->sta_scanning w/ only
+ * what is exposed through include/ declarations */
+ if (unlikely(!iwl4965_param_disable_hw_scan &&
+ test_bit(STATUS_SCANNING, &priv->status))) {
+
+ if (unlikely(priv->cache_conf))
+ IWL_DEBUG_MAC80211("leave - still scanning\n");
+ else {
+ /* Cache the configuration now so that we can
+ * replay it after the hardware scan is finished. */
+ priv->cache_conf = kmalloc(sizeof(*conf), GFP_KERNEL);
+ if (priv->cache_conf) {
+ memcpy(priv->cache_conf, conf, sizeof(*conf));
+ IWL_DEBUG_MAC80211("leave - scanning\n");
+ } else {
+ IWL_DEBUG_MAC80211("leave - no memory\n");
+ ret = -ENOMEM;
+ }
+ }
+ mutex_unlock(&priv->mutex);
+ return ret;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ ch_info = iwl4965_get_channel_info(priv, conf->phymode, conf->channel);
+ if (!is_channel_valid(ch_info)) {
+ IWL_DEBUG_SCAN("Channel %d [%d] is INVALID for this SKU.\n",
+ conf->channel, conf->phymode);
+ IWL_DEBUG_MAC80211("leave - invalid channel\n");
+ spin_unlock_irqrestore(&priv->lock, flags);
+ ret = -EINVAL;
+ goto out;
+ }
+
+#ifdef CONFIG_IWL4965_HT
+ /* if we are switching fron ht to 2.4 clear flags
+ * from any ht related info since 2.4 does not
+ * support ht */
+ if ((le16_to_cpu(priv->staging_rxon.channel) != conf->channel)
+#ifdef IEEE80211_CONF_CHANNEL_SWITCH
+ && !(conf->flags & IEEE80211_CONF_CHANNEL_SWITCH)
+#endif
+ )
+ priv->staging_rxon.flags = 0;
+#endif /* CONFIG_IWL4965_HT */
+
+ iwl4965_set_rxon_channel(priv, conf->phymode, conf->channel);
+
+ iwl4965_set_flags_for_phymode(priv, conf->phymode);
+
+ /* The list of supported rates and rate mask can be different
+ * for each phymode; since the phymode may have changed, reset
+ * the rate mask to what mac80211 lists */
+ iwl4965_set_rate(priv);
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+#ifdef IEEE80211_CONF_CHANNEL_SWITCH
+ if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
+ iwl4965_hw_channel_switch(priv, conf->channel);
+ goto out;
+ }
+#endif
+
+ iwl4965_radio_kill_sw(priv, !conf->radio_enabled);
+
+ if (!conf->radio_enabled) {
+ IWL_DEBUG_MAC80211("leave - radio disabled\n");
+ goto out;
+ }
+
+ if (iwl4965_is_rfkill(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF kill\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ iwl4965_set_rate(priv);
+
+ if (memcmp(&priv->active_rxon,
+ &priv->staging_rxon, sizeof(priv->staging_rxon)))
+ iwl4965_commit_rxon(priv);
+ else
+ IWL_DEBUG_INFO("No re-sending same RXON configuration.\n");
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+out:
+ if (priv->cache_conf) {
+ kfree(priv->cache_conf);
+ priv->cache_conf = NULL;
+ }
+ mutex_unlock(&priv->mutex);
+ return ret;
+}
+
+static void iwl4965_config_ap(struct iwl4965_priv *priv)
+{
+ int rc = 0;
+
+ if (priv->status & STATUS_EXIT_PENDING)
+ return;
+
+ /* The following should be done only at AP bring up */
+ if ((priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) == 0) {
+
+ /* RXON - unassoc (to set timing command) */
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+
+ /* RXON Timing */
+ memset(&priv->rxon_timing, 0, sizeof(struct iwl4965_rxon_time_cmd));
+ iwl4965_setup_rxon_timing(priv);
+ rc = iwl4965_send_cmd_pdu(priv, REPLY_RXON_TIMING,
+ sizeof(priv->rxon_timing), &priv->rxon_timing);
+ if (rc)
+ IWL_WARNING("REPLY_RXON_TIMING failed - "
+ "Attempting to continue.\n");
+
+ iwl4965_set_rxon_chain(priv);
+
+ /* FIXME: what should be the assoc_id for AP? */
+ priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
+ if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
+ priv->staging_rxon.flags |=
+ RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ priv->staging_rxon.flags &=
+ ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+ if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
+ if (priv->assoc_capability &
+ WLAN_CAPABILITY_SHORT_SLOT_TIME)
+ priv->staging_rxon.flags |=
+ RXON_FLG_SHORT_SLOT_MSK;
+ else
+ priv->staging_rxon.flags &=
+ ~RXON_FLG_SHORT_SLOT_MSK;
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_IBSS)
+ priv->staging_rxon.flags &=
+ ~RXON_FLG_SHORT_SLOT_MSK;
+ }
+ /* restore RXON assoc */
+ priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+#ifdef CONFIG_IWL4965_QOS
+ iwl4965_activate_qos(priv, 1);
+#endif
+ iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0);
+ }
+ iwl4965_send_beacon_cmd(priv);
+
+ /* FIXME - we need to add code here to detect a totally new
+ * configuration, reset the AP, unassoc, rxon timing, assoc,
+ * clear sta table, add BCAST sta... */
+}
+
+static int iwl4965_mac_config_interface(struct ieee80211_hw *hw, int if_id,
+ struct ieee80211_if_conf *conf)
+{
+ struct iwl4965_priv *priv = hw->priv;
+ DECLARE_MAC_BUF(mac);
+ unsigned long flags;
+ int rc;
+
+ if (conf == NULL)
+ return -EIO;
+
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_AP) &&
+ (!conf->beacon || !conf->ssid_len)) {
+ IWL_DEBUG_MAC80211
+ ("Leaving in AP mode because HostAPD is not ready.\n");
+ return 0;
+ }
+
+ mutex_lock(&priv->mutex);
+
+ IWL_DEBUG_MAC80211("enter: interface id %d\n", if_id);
+ if (conf->bssid)
+ IWL_DEBUG_MAC80211("bssid: %s\n",
+ print_mac(mac, conf->bssid));
+
+/*
+ * very dubious code was here; the probe filtering flag is never set:
+ *
+ if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
+ !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
+ */
+ if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) {
+ IWL_DEBUG_MAC80211("leave - scanning\n");
+ mutex_unlock(&priv->mutex);
+ return 0;
+ }
+
+ if (priv->interface_id != if_id) {
+ IWL_DEBUG_MAC80211("leave - interface_id != if_id\n");
+ mutex_unlock(&priv->mutex);
+ return 0;
+ }
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP) {
+ if (!conf->bssid) {
+ conf->bssid = priv->mac_addr;
+ memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
+ IWL_DEBUG_MAC80211("bssid was set to: %s\n",
+ print_mac(mac, conf->bssid));
+ }
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = conf->beacon;
+ }
+
+ if (iwl4965_is_rfkill(priv))
+ goto done;
+
+ if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
+ !is_multicast_ether_addr(conf->bssid)) {
+ /* If there is currently a HW scan going on in the background
+ * then we need to cancel it else the RXON below will fail. */
+ if (iwl4965_scan_cancel_timeout(priv, 100)) {
+ IWL_WARNING("Aborted scan still in progress "
+ "after 100ms\n");
+ IWL_DEBUG_MAC80211("leaving - scan abort failed.\n");
+ mutex_unlock(&priv->mutex);
+ return -EAGAIN;
+ }
+ memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN);
+
+ /* TODO: Audit driver for usage of these members and see
+ * if mac80211 deprecates them (priv->bssid looks like it
+ * shouldn't be there, but I haven't scanned the IBSS code
+ * to verify) - jpk */
+ memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
+ iwl4965_config_ap(priv);
+ else {
+ rc = iwl4965_commit_rxon(priv);
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc)
+ iwl4965_rxon_add_station(
+ priv, priv->active_rxon.bssid_addr, 1);
+ }
+
+ } else {
+ iwl4965_scan_cancel_timeout(priv, 100);
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+ }
+
+ done:
+ spin_lock_irqsave(&priv->lock, flags);
+ if (!conf->ssid_len)
+ memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
+ else
+ memcpy(priv->essid, conf->ssid, conf->ssid_len);
+
+ priv->essid_len = conf->ssid_len;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ IWL_DEBUG_MAC80211("leave\n");
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+
+static void iwl4965_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *total_flags,
+ int mc_count, struct dev_addr_list *mc_list)
+{
+ /*
+ * XXX: dummy
+ * see also iwl4965_connection_init_rx_config
+ */
+ *total_flags = 0;
+}
+
+static void iwl4965_mac_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_if_init_conf *conf)
+{
+ struct iwl4965_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ mutex_lock(&priv->mutex);
+
+ if (iwl4965_is_ready_rf(priv)) {
+ iwl4965_scan_cancel_timeout(priv, 100);
+ cancel_delayed_work(&priv->post_associate);
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+ }
+ if (priv->interface_id == conf->if_id) {
+ priv->interface_id = 0;
+ memset(priv->bssid, 0, ETH_ALEN);
+ memset(priv->essid, 0, IW_ESSID_MAX_SIZE);
+ priv->essid_len = 0;
+ }
+ mutex_unlock(&priv->mutex);
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+}
+static void iwl4965_mac_erp_ie_changed(struct ieee80211_hw *hw,
+ u8 changes, int cts_protection, int preamble)
+{
+ struct iwl4965_priv *priv = hw->priv;
+
+ if (changes & IEEE80211_ERP_CHANGE_PREAMBLE) {
+ if (preamble == WLAN_ERP_PREAMBLE_SHORT)
+ priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+ }
+
+ if (changes & IEEE80211_ERP_CHANGE_PROTECTION) {
+ if (cts_protection && (priv->phymode != MODE_IEEE80211A))
+ priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
+ else
+ priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
+ }
+
+ if (iwl4965_is_associated(priv))
+ iwl4965_send_rxon_assoc(priv);
+}
+
+static int iwl4965_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
+{
+ int rc = 0;
+ unsigned long flags;
+ struct iwl4965_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ mutex_lock(&priv->mutex);
+ spin_lock_irqsave(&priv->lock, flags);
+
+ if (!iwl4965_is_ready_rf(priv)) {
+ rc = -EIO;
+ IWL_DEBUG_MAC80211("leave - not ready or exit pending\n");
+ goto out_unlock;
+ }
+
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP) { /* APs don't scan */
+ rc = -EIO;
+ IWL_ERROR("ERROR: APs don't scan\n");
+ goto out_unlock;
+ }
+
+ /* we don't schedule scan within next_scan_jiffies period */
+ if (priv->next_scan_jiffies &&
+ time_after(priv->next_scan_jiffies, jiffies)) {
+ rc = -EAGAIN;
+ goto out_unlock;
+ }
+ /* if we just finished scan ask for delay */
+ if (priv->last_scan_jiffies && time_after(priv->last_scan_jiffies +
+ IWL_DELAY_NEXT_SCAN, jiffies)) {
+ rc = -EAGAIN;
+ goto out_unlock;
+ }
+ if (len) {
+ IWL_DEBUG_SCAN("direct scan for %s [%d]\n ",
+ iwl4965_escape_essid(ssid, len), (int)len);
+
+ priv->one_direct_scan = 1;
+ priv->direct_ssid_len = (u8)
+ min((u8) len, (u8) IW_ESSID_MAX_SIZE);
+ memcpy(priv->direct_ssid, ssid, priv->direct_ssid_len);
+ } else
+ priv->one_direct_scan = 0;
+
+ rc = iwl4965_scan_initiate(priv);
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+out_unlock:
+ spin_unlock_irqrestore(&priv->lock, flags);
+ mutex_unlock(&priv->mutex);
+
+ return rc;
+}
+
+static int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+ const u8 *local_addr, const u8 *addr,
+ struct ieee80211_key_conf *key)
+{
+ struct iwl4965_priv *priv = hw->priv;
+ DECLARE_MAC_BUF(mac);
+ int rc = 0;
+ u8 sta_id;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (!iwl4965_param_hwcrypto) {
+ IWL_DEBUG_MAC80211("leave - hwcrypto disabled\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (is_zero_ether_addr(addr))
+ /* only support pairwise keys */
+ return -EOPNOTSUPP;
+
+ sta_id = iwl4965_hw_find_station(priv, addr);
+ if (sta_id == IWL_INVALID_STATION) {
+ IWL_DEBUG_MAC80211("leave - %s not in station map.\n",
+ print_mac(mac, addr));
+ return -EINVAL;
+ }
+
+ mutex_lock(&priv->mutex);
+
+ iwl4965_scan_cancel_timeout(priv, 100);
+
+ switch (cmd) {
+ case SET_KEY:
+ rc = iwl4965_update_sta_key_info(priv, key, sta_id);
+ if (!rc) {
+ iwl4965_set_rxon_hwcrypto(priv, 1);
+ iwl4965_commit_rxon(priv);
+ key->hw_key_idx = sta_id;
+ IWL_DEBUG_MAC80211("set_key success, using hwcrypto\n");
+ key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+ }
+ break;
+ case DISABLE_KEY:
+ rc = iwl4965_clear_sta_key_info(priv, sta_id);
+ if (!rc) {
+ iwl4965_set_rxon_hwcrypto(priv, 0);
+ iwl4965_commit_rxon(priv);
+ IWL_DEBUG_MAC80211("disable hwcrypto key\n");
+ }
+ break;
+ default:
+ rc = -EINVAL;
+ }
+
+ IWL_DEBUG_MAC80211("leave\n");
+ mutex_unlock(&priv->mutex);
+
+ return rc;
+}
+
+static int iwl4965_mac_conf_tx(struct ieee80211_hw *hw, int queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ struct iwl4965_priv *priv = hw->priv;
+#ifdef CONFIG_IWL4965_QOS
+ unsigned long flags;
+ int q;
+#endif /* CONFIG_IWL4965_QOS */
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (!iwl4965_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF not ready\n");
+ return -EIO;
+ }
+
+ if (queue >= AC_NUM) {
+ IWL_DEBUG_MAC80211("leave - queue >= AC_NUM %d\n", queue);
+ return 0;
+ }
+
+#ifdef CONFIG_IWL4965_QOS
+ if (!priv->qos_data.qos_enable) {
+ priv->qos_data.qos_active = 0;
+ IWL_DEBUG_MAC80211("leave - qos not enabled\n");
+ return 0;
+ }
+ q = AC_NUM - 1 - queue;
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
+ priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
+ priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
+ priv->qos_data.def_qos_parm.ac[q].edca_txop =
+ cpu_to_le16((params->burst_time * 100));
+
+ priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
+ priv->qos_data.qos_active = 1;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ mutex_lock(&priv->mutex);
+ if (priv->iw_mode == IEEE80211_IF_TYPE_AP)
+ iwl4965_activate_qos(priv, 1);
+ else if (priv->assoc_id && iwl4965_is_associated(priv))
+ iwl4965_activate_qos(priv, 0);
+
+ mutex_unlock(&priv->mutex);
+
+#endif /*CONFIG_IWL4965_QOS */
+
+ IWL_DEBUG_MAC80211("leave\n");
+ return 0;
+}
+
+static int iwl4965_mac_get_tx_stats(struct ieee80211_hw *hw,
+ struct ieee80211_tx_queue_stats *stats)
+{
+ struct iwl4965_priv *priv = hw->priv;
+ int i, avail;
+ struct iwl4965_tx_queue *txq;
+ struct iwl4965_queue *q;
+ unsigned long flags;
+
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (!iwl4965_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF not ready\n");
+ return -EIO;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ for (i = 0; i < AC_NUM; i++) {
+ txq = &priv->txq[i];
+ q = &txq->q;
+ avail = iwl4965_queue_space(q);
+
+ stats->data[i].len = q->n_window - avail;
+ stats->data[i].limit = q->n_window - q->high_mark;
+ stats->data[i].count = q->n_window;
+
+ }
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+ return 0;
+}
+
+static int iwl4965_mac_get_stats(struct ieee80211_hw *hw,
+ struct ieee80211_low_level_stats *stats)
+{
+ IWL_DEBUG_MAC80211("enter\n");
+ IWL_DEBUG_MAC80211("leave\n");
+
+ return 0;
+}
+
+static u64 iwl4965_mac_get_tsf(struct ieee80211_hw *hw)
+{
+ IWL_DEBUG_MAC80211("enter\n");
+ IWL_DEBUG_MAC80211("leave\n");
+
+ return 0;
+}
+
+static void iwl4965_mac_reset_tsf(struct ieee80211_hw *hw)
+{
+ struct iwl4965_priv *priv = hw->priv;
+ unsigned long flags;
+
+ mutex_lock(&priv->mutex);
+ IWL_DEBUG_MAC80211("enter\n");
+
+ priv->lq_mngr.lq_ready = 0;
+#ifdef CONFIG_IWL4965_HT
+ spin_lock_irqsave(&priv->lock, flags);
+ memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_info));
+ spin_unlock_irqrestore(&priv->lock, flags);
+#ifdef CONFIG_IWL4965_HT_AGG
+/* if (priv->lq_mngr.agg_ctrl.granted_ba)
+ iwl4965_turn_off_agg(priv, TID_ALL_SPECIFIED);*/
+
+ memset(&(priv->lq_mngr.agg_ctrl), 0, sizeof(struct iwl4965_agg_control));
+ priv->lq_mngr.agg_ctrl.tid_traffic_load_threshold = 10;
+ priv->lq_mngr.agg_ctrl.ba_timeout = 5000;
+ priv->lq_mngr.agg_ctrl.auto_agg = 1;
+
+ if (priv->lq_mngr.agg_ctrl.auto_agg)
+ priv->lq_mngr.agg_ctrl.requested_ba = TID_ALL_ENABLED;
+#endif /*CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
+
+#ifdef CONFIG_IWL4965_QOS
+ iwl4965_reset_qos(priv);
+#endif
+
+ cancel_delayed_work(&priv->post_associate);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ priv->assoc_id = 0;
+ priv->assoc_capability = 0;
+ priv->call_post_assoc_from_beacon = 0;
+ priv->assoc_station_added = 0;
+
+ /* new association get rid of ibss beacon skb */
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = NULL;
+
+ priv->beacon_int = priv->hw->conf.beacon_int;
+ priv->timestamp1 = 0;
+ priv->timestamp0 = 0;
+ if ((priv->iw_mode == IEEE80211_IF_TYPE_STA))
+ priv->beacon_int = 0;
+
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ if (!iwl4965_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - not ready\n");
+ mutex_unlock(&priv->mutex);
+ return;
+ }
+
+ /* we are restarting association process
+ * clear RXON_FILTER_ASSOC_MSK bit
+ */
+ if (priv->iw_mode != IEEE80211_IF_TYPE_AP) {
+ iwl4965_scan_cancel_timeout(priv, 100);
+ priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ iwl4965_commit_rxon(priv);
+ }
+
+ /* Per mac80211.h: This is only used in IBSS mode... */
+ if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
+
+ IWL_DEBUG_MAC80211("leave - not in IBSS\n");
+ mutex_unlock(&priv->mutex);
+ return;
+ }
+
+ priv->only_active_channel = 0;
+
+ iwl4965_set_rate(priv);
+
+ mutex_unlock(&priv->mutex);
+
+ IWL_DEBUG_MAC80211("leave\n");
+
+}
+
+static int iwl4965_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_tx_control *control)
+{
+ struct iwl4965_priv *priv = hw->priv;
+ unsigned long flags;
+
+ mutex_lock(&priv->mutex);
+ IWL_DEBUG_MAC80211("enter\n");
+
+ if (!iwl4965_is_ready_rf(priv)) {
+ IWL_DEBUG_MAC80211("leave - RF not ready\n");
+ mutex_unlock(&priv->mutex);
+ return -EIO;
+ }
+
+ if (priv->iw_mode != IEEE80211_IF_TYPE_IBSS) {
+ IWL_DEBUG_MAC80211("leave - not IBSS\n");
+ mutex_unlock(&priv->mutex);
+ return -EIO;
+ }
+
+ spin_lock_irqsave(&priv->lock, flags);
+
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ priv->ibss_beacon = skb;
+
+ priv->assoc_id = 0;
+
+ IWL_DEBUG_MAC80211("leave\n");
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+#ifdef CONFIG_IWL4965_QOS
+ iwl4965_reset_qos(priv);
+#endif
+
+ queue_work(priv->workqueue, &priv->post_associate);
+
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+
+#ifdef CONFIG_IWL4965_HT
+
+static void iwl4965_ht_info_fill(struct ieee80211_conf *conf,
+ struct iwl4965_priv *priv)
+{
+ struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
+ struct ieee80211_ht_info *ht_conf = &conf->ht_conf;
+ struct ieee80211_ht_bss_info *ht_bss_conf = &conf->ht_bss_conf;
+
+ IWL_DEBUG_MAC80211("enter: \n");
+
+ if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)) {
+ iwl_conf->is_ht = 0;
+ return;
+ }
+
+ iwl_conf->is_ht = 1;
+ priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
+
+ if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
+ iwl_conf->sgf |= 0x1;
+ if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
+ iwl_conf->sgf |= 0x2;
+
+ iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
+ iwl_conf->max_amsdu_size =
+ !!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
+ iwl_conf->supported_chan_width =
+ !!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
+ iwl_conf->tx_mimo_ps_mode =
+ (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
+ memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
+
+ iwl_conf->control_channel = ht_bss_conf->primary_channel;
+ iwl_conf->extension_chan_offset =
+ ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
+ iwl_conf->tx_chan_width =
+ !!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
+ iwl_conf->ht_protection =
+ ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION;
+ iwl_conf->non_GF_STA_present =
+ !!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT);
+
+ IWL_DEBUG_MAC80211("control channel %d\n",
+ iwl_conf->control_channel);
+ IWL_DEBUG_MAC80211("leave\n");
+}
+
+static int iwl4965_mac_conf_ht(struct ieee80211_hw *hw,
+ struct ieee80211_conf *conf)
+{
+ struct iwl4965_priv *priv = hw->priv;
+
+ IWL_DEBUG_MAC80211("enter: \n");
+
+ iwl4965_ht_info_fill(conf, priv);
+ iwl4965_set_rxon_chain(priv);
+
+ if (priv && priv->assoc_id &&
+ (priv->iw_mode == IEEE80211_IF_TYPE_STA)) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (priv->beacon_int)
+ queue_work(priv->workqueue, &priv->post_associate.work);
+ else
+ priv->call_post_assoc_from_beacon = 1;
+ spin_unlock_irqrestore(&priv->lock, flags);
+ }
+
+ IWL_DEBUG_MAC80211("leave:\n");
+ return 0;
+}
+
+static void iwl4965_set_ht_capab(struct ieee80211_hw *hw,
+ struct ieee80211_ht_cap *ht_cap,
+ u8 use_current_config)
+{
+ struct ieee80211_conf *conf = &hw->conf;
+ struct ieee80211_hw_mode *mode = conf->mode;
+
+ if (use_current_config) {
+ ht_cap->cap_info = cpu_to_le16(conf->ht_conf.cap);
+ memcpy(ht_cap->supp_mcs_set,
+ conf->ht_conf.supp_mcs_set, 16);
+ } else {
+ ht_cap->cap_info = cpu_to_le16(mode->ht_info.cap);
+ memcpy(ht_cap->supp_mcs_set,
+ mode->ht_info.supp_mcs_set, 16);
+ }
+ ht_cap->ampdu_params_info =
+ (mode->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) |
+ ((mode->ht_info.ampdu_density << 2) &
+ IEEE80211_HT_CAP_AMPDU_DENSITY);
+}
+
+#endif /*CONFIG_IWL4965_HT*/
+
+/*****************************************************************************
+ *
+ * sysfs attributes
+ *
+ *****************************************************************************/
+
+#ifdef CONFIG_IWL4965_DEBUG
+
+/*
+ * The following adds a new attribute to the sysfs representation
+ * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
+ * used for controlling the debug level.
+ *
+ * See the level definitions in iwl for details.
+ */
+
+static ssize_t show_debug_level(struct device_driver *d, char *buf)
+{
+ return sprintf(buf, "0x%08X\n", iwl4965_debug_level);
+}
+static ssize_t store_debug_level(struct device_driver *d,
+ const char *buf, size_t count)
+{
+ char *p = (char *)buf;
+ u32 val;
+
+ val = simple_strtoul(p, &p, 0);
+ if (p == buf)
+ printk(KERN_INFO DRV_NAME
+ ": %s is not in hex or decimal form.\n", buf);
+ else
+ iwl4965_debug_level = val;
+
+ return strnlen(buf, count);
+}
+
+static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
+ show_debug_level, store_debug_level);
+
+#endif /* CONFIG_IWL4965_DEBUG */
+
+static ssize_t show_rf_kill(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ /*
+ * 0 - RF kill not enabled
+ * 1 - SW based RF kill active (sysfs)
+ * 2 - HW based RF kill active
+ * 3 - Both HW and SW based RF kill active
+ */
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ int val = (test_bit(STATUS_RF_KILL_SW, &priv->status) ? 0x1 : 0x0) |
+ (test_bit(STATUS_RF_KILL_HW, &priv->status) ? 0x2 : 0x0);
+
+ return sprintf(buf, "%i\n", val);
+}
+
+static ssize_t store_rf_kill(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+
+ mutex_lock(&priv->mutex);
+ iwl4965_radio_kill_sw(priv, buf[0] == '1');
+ mutex_unlock(&priv->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
+
+static ssize_t show_temperature(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+
+ if (!iwl4965_is_alive(priv))
+ return -EAGAIN;
+
+ return sprintf(buf, "%d\n", iwl4965_hw_get_temperature(priv));
+}
+
+static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
+
+static ssize_t show_rs_window(struct device *d,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct iwl4965_priv *priv = d->driver_data;
+ return iwl4965_fill_rs_info(priv->hw, buf, IWL_AP_ID);
+}
+static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL);
+
+static ssize_t show_tx_power(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ return sprintf(buf, "%d\n", priv->user_txpower_limit);
+}
+
+static ssize_t store_tx_power(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ char *p = (char *)buf;
+ u32 val;
+
+ val = simple_strtoul(p, &p, 10);
+ if (p == buf)
+ printk(KERN_INFO DRV_NAME
+ ": %s is not in decimal form.\n", buf);
+ else
+ iwl4965_hw_reg_set_txpower(priv, val);
+
+ return count;
+}
+
+static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
+
+static ssize_t show_flags(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+
+ return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
+}
+
+static ssize_t store_flags(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ u32 flags = simple_strtoul(buf, NULL, 0);
+
+ mutex_lock(&priv->mutex);
+ if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
+ /* Cancel any currently running scans... */
+ if (iwl4965_scan_cancel_timeout(priv, 100))
+ IWL_WARNING("Could not cancel scan.\n");
+ else {
+ IWL_DEBUG_INFO("Committing rxon.flags = 0x%04X\n",
+ flags);
+ priv->staging_rxon.flags = cpu_to_le32(flags);
+ iwl4965_commit_rxon(priv);
+ }
+ }
+ mutex_unlock(&priv->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
+
+static ssize_t show_filter_flags(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+
+ return sprintf(buf, "0x%04X\n",
+ le32_to_cpu(priv->active_rxon.filter_flags));
+}
+
+static ssize_t store_filter_flags(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ u32 filter_flags = simple_strtoul(buf, NULL, 0);
+
+ mutex_lock(&priv->mutex);
+ if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
+ /* Cancel any currently running scans... */
+ if (iwl4965_scan_cancel_timeout(priv, 100))
+ IWL_WARNING("Could not cancel scan.\n");
+ else {
+ IWL_DEBUG_INFO("Committing rxon.filter_flags = "
+ "0x%04X\n", filter_flags);
+ priv->staging_rxon.filter_flags =
+ cpu_to_le32(filter_flags);
+ iwl4965_commit_rxon(priv);
+ }
+ }
+ mutex_unlock(&priv->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
+ store_filter_flags);
+
+static ssize_t show_tune(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+
+ return sprintf(buf, "0x%04X\n",
+ (priv->phymode << 8) |
+ le16_to_cpu(priv->active_rxon.channel));
+}
+
+static void iwl4965_set_flags_for_phymode(struct iwl4965_priv *priv, u8 phymode);
+
+static ssize_t store_tune(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ char *p = (char *)buf;
+ u16 tune = simple_strtoul(p, &p, 0);
+ u8 phymode = (tune >> 8) & 0xff;
+ u16 channel = tune & 0xff;
+
+ IWL_DEBUG_INFO("Tune request to:%d channel:%d\n", phymode, channel);
+
+ mutex_lock(&priv->mutex);
+ if ((le16_to_cpu(priv->staging_rxon.channel) != channel) ||
+ (priv->phymode != phymode)) {
+ const struct iwl4965_channel_info *ch_info;
+
+ ch_info = iwl4965_get_channel_info(priv, phymode, channel);
+ if (!ch_info) {
+ IWL_WARNING("Requested invalid phymode/channel "
+ "combination: %d %d\n", phymode, channel);
+ mutex_unlock(&priv->mutex);
+ return -EINVAL;
+ }
+
+ /* Cancel any currently running scans... */
+ if (iwl4965_scan_cancel_timeout(priv, 100))
+ IWL_WARNING("Could not cancel scan.\n");
+ else {
+ IWL_DEBUG_INFO("Committing phymode and "
+ "rxon.channel = %d %d\n",
+ phymode, channel);
+
+ iwl4965_set_rxon_channel(priv, phymode, channel);
+ iwl4965_set_flags_for_phymode(priv, phymode);
+
+ iwl4965_set_rate(priv);
+ iwl4965_commit_rxon(priv);
+ }
+ }
+ mutex_unlock(&priv->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(tune, S_IWUSR | S_IRUGO, show_tune, store_tune);
+
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+
+static ssize_t show_measurement(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl4965_priv *priv = dev_get_drvdata(d);
+ struct iwl4965_spectrum_notification measure_report;
+ u32 size = sizeof(measure_report), len = 0, ofs = 0;
+ u8 *data = (u8 *) & measure_report;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (!(priv->measurement_status & MEASUREMENT_READY)) {
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return 0;
+ }
+ memcpy(&measure_report, &priv->measure_report, size);
+ priv->measurement_status = 0;
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ while (size && (PAGE_SIZE - len)) {
+ hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
+ PAGE_SIZE - len, 1);
+ if (PAGE_SIZE - len)
+ buf[len++] = '\n';
+
+ ofs += 16;
+ size -= min(size, 16U);
+ }
+
+ return len;
+}
+
+static ssize_t store_measurement(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl4965_priv *priv = dev_get_drvdata(d);
+ struct ieee80211_measurement_params params = {
+ .channel = le16_to_cpu(priv->active_rxon.channel),
+ .start_time = cpu_to_le64(priv->last_tsf),
+ .duration = cpu_to_le16(1),
+ };
+ u8 type = IWL_MEASURE_BASIC;
+ u8 buffer[32];
+ u8 channel;
+
+ if (count) {
+ char *p = buffer;
+ strncpy(buffer, buf, min(sizeof(buffer), count));
+ channel = simple_strtoul(p, NULL, 0);
+ if (channel)
+ params.channel = channel;
+
+ p = buffer;
+ while (*p && *p != ' ')
+ p++;
+ if (*p)
+ type = simple_strtoul(p + 1, NULL, 0);
+ }
+
+ IWL_DEBUG_INFO("Invoking measurement of type %d on "
+ "channel %d (for '%s')\n", type, params.channel, buf);
+ iwl4965_get_measurement(priv, ¶ms, type);
+
+ return count;
+}
+
+static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
+ show_measurement, store_measurement);
+#endif /* CONFIG_IWL4965_SPECTRUM_MEASUREMENT */
+
+static ssize_t store_retry_rate(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl4965_priv *priv = dev_get_drvdata(d);
+
+ priv->retry_rate = simple_strtoul(buf, NULL, 0);
+ if (priv->retry_rate <= 0)
+ priv->retry_rate = 1;
+
+ return count;
+}
+
+static ssize_t show_retry_rate(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl4965_priv *priv = dev_get_drvdata(d);
+ return sprintf(buf, "%d", priv->retry_rate);
+}
+
+static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
+ store_retry_rate);
+
+static ssize_t store_power_level(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct iwl4965_priv *priv = dev_get_drvdata(d);
+ int rc;
+ int mode;
+
+ mode = simple_strtoul(buf, NULL, 0);
+ mutex_lock(&priv->mutex);
+
+ if (!iwl4965_is_ready(priv)) {
+ rc = -EAGAIN;
+ goto out;
+ }
+
+ if ((mode < 1) || (mode > IWL_POWER_LIMIT) || (mode == IWL_POWER_AC))
+ mode = IWL_POWER_AC;
+ else
+ mode |= IWL_POWER_ENABLED;
+
+ if (mode != priv->power_mode) {
+ rc = iwl4965_send_power_mode(priv, IWL_POWER_LEVEL(mode));
+ if (rc) {
+ IWL_DEBUG_MAC80211("failed setting power mode.\n");
+ goto out;
+ }
+ priv->power_mode = mode;
+ }
+
+ rc = count;
+
+ out:
+ mutex_unlock(&priv->mutex);
+ return rc;
+}
+
+#define MAX_WX_STRING 80
+
+/* Values are in microsecond */
+static const s32 timeout_duration[] = {
+ 350000,
+ 250000,
+ 75000,
+ 37000,
+ 25000,
+};
+static const s32 period_duration[] = {
+ 400000,
+ 700000,
+ 1000000,
+ 1000000,
+ 1000000
+};
+
+static ssize_t show_power_level(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl4965_priv *priv = dev_get_drvdata(d);
+ int level = IWL_POWER_LEVEL(priv->power_mode);
+ char *p = buf;
+
+ p += sprintf(p, "%d ", level);
+ switch (level) {
+ case IWL_POWER_MODE_CAM:
+ case IWL_POWER_AC:
+ p += sprintf(p, "(AC)");
+ break;
+ case IWL_POWER_BATTERY:
+ p += sprintf(p, "(BATTERY)");
+ break;
+ default:
+ p += sprintf(p,
+ "(Timeout %dms, Period %dms)",
+ timeout_duration[level - 1] / 1000,
+ period_duration[level - 1] / 1000);
+ }
+
+ if (!(priv->power_mode & IWL_POWER_ENABLED))
+ p += sprintf(p, " OFF\n");
+ else
+ p += sprintf(p, " \n");
+
+ return (p - buf + 1);
+
+}
+
+static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
+ store_power_level);
+
+static ssize_t show_channels(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl4965_priv *priv = dev_get_drvdata(d);
+ int len = 0, i;
+ struct ieee80211_channel *channels = NULL;
+ const struct ieee80211_hw_mode *hw_mode = NULL;
+ int count = 0;
+
+ if (!iwl4965_is_ready(priv))
+ return -EAGAIN;
+
+ hw_mode = iwl4965_get_hw_mode(priv, MODE_IEEE80211G);
+ if (!hw_mode)
+ hw_mode = iwl4965_get_hw_mode(priv, MODE_IEEE80211B);
+ if (hw_mode) {
+ channels = hw_mode->channels;
+ count = hw_mode->num_channels;
+ }
+
+ len +=
+ sprintf(&buf[len],
+ "Displaying %d channels in 2.4GHz band "
+ "(802.11bg):\n", count);
+
+ for (i = 0; i < count; i++)
+ len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
+ channels[i].chan,
+ channels[i].power_level,
+ channels[i].
+ flag & IEEE80211_CHAN_W_RADAR_DETECT ?
+ " (IEEE 802.11h required)" : "",
+ (!(channels[i].flag & IEEE80211_CHAN_W_IBSS)
+ || (channels[i].
+ flag &
+ IEEE80211_CHAN_W_RADAR_DETECT)) ? "" :
+ ", IBSS",
+ channels[i].
+ flag & IEEE80211_CHAN_W_ACTIVE_SCAN ?
+ "active/passive" : "passive only");
+
+ hw_mode = iwl4965_get_hw_mode(priv, MODE_IEEE80211A);
+ if (hw_mode) {
+ channels = hw_mode->channels;
+ count = hw_mode->num_channels;
+ } else {
+ channels = NULL;
+ count = 0;
+ }
+
+ len += sprintf(&buf[len], "Displaying %d channels in 5.2GHz band "
+ "(802.11a):\n", count);
+
+ for (i = 0; i < count; i++)
+ len += sprintf(&buf[len], "%d: %ddBm: BSS%s%s, %s.\n",
+ channels[i].chan,
+ channels[i].power_level,
+ channels[i].
+ flag & IEEE80211_CHAN_W_RADAR_DETECT ?
+ " (IEEE 802.11h required)" : "",
+ (!(channels[i].flag & IEEE80211_CHAN_W_IBSS)
+ || (channels[i].
+ flag &
+ IEEE80211_CHAN_W_RADAR_DETECT)) ? "" :
+ ", IBSS",
+ channels[i].
+ flag & IEEE80211_CHAN_W_ACTIVE_SCAN ?
+ "active/passive" : "passive only");
+
+ return len;
+}
+
+static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
+
+static ssize_t show_statistics(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl4965_priv *priv = dev_get_drvdata(d);
+ u32 size = sizeof(struct iwl4965_notif_statistics);
+ u32 len = 0, ofs = 0;
+ u8 *data = (u8 *) & priv->statistics;
+ int rc = 0;
+
+ if (!iwl4965_is_alive(priv))
+ return -EAGAIN;
+
+ mutex_lock(&priv->mutex);
+ rc = iwl4965_send_statistics_request(priv);
+ mutex_unlock(&priv->mutex);
+
+ if (rc) {
+ len = sprintf(buf,
+ "Error sending statistics request: 0x%08X\n", rc);
+ return len;
+ }
+
+ while (size && (PAGE_SIZE - len)) {
+ hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
+ PAGE_SIZE - len, 1);
+ if (PAGE_SIZE - len)
+ buf[len++] = '\n';
+
+ ofs += 16;
+ size -= min(size, 16U);
+ }
+
+ return len;
+}
+
+static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
+
+static ssize_t show_antenna(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl4965_priv *priv = dev_get_drvdata(d);
+
+ if (!iwl4965_is_alive(priv))
+ return -EAGAIN;
+
+ return sprintf(buf, "%d\n", priv->antenna);
+}
+
+static ssize_t store_antenna(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int ant;
+ struct iwl4965_priv *priv = dev_get_drvdata(d);
+
+ if (count == 0)
+ return 0;
+
+ if (sscanf(buf, "%1i", &ant) != 1) {
+ IWL_DEBUG_INFO("not in hex or decimal form.\n");
+ return count;
+ }
+
+ if ((ant >= 0) && (ant <= 2)) {
+ IWL_DEBUG_INFO("Setting antenna select to %d.\n", ant);
+ priv->antenna = (enum iwl4965_antenna)ant;
+ } else
+ IWL_DEBUG_INFO("Bad antenna select value %d.\n", ant);
+
+
+ return count;
+}
+
+static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna);
+
+static ssize_t show_status(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct iwl4965_priv *priv = (struct iwl4965_priv *)d->driver_data;
+ if (!iwl4965_is_alive(priv))
+ return -EAGAIN;
+ return sprintf(buf, "0x%08x\n", (int)priv->status);
+}
+
+static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
+
+static ssize_t dump_error_log(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ char *p = (char *)buf;
+
+ if (p[0] == '1')
+ iwl4965_dump_nic_error_log((struct iwl4965_priv *)d->driver_data);
+
+ return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
+
+static ssize_t dump_event_log(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ char *p = (char *)buf;
+
+ if (p[0] == '1')
+ iwl4965_dump_nic_event_log((struct iwl4965_priv *)d->driver_data);
+
+ return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
+
+/*****************************************************************************
+ *
+ * driver setup and teardown
+ *
+ *****************************************************************************/
+
+static void iwl4965_setup_deferred_work(struct iwl4965_priv *priv)
+{
+ priv->workqueue = create_workqueue(DRV_NAME);
+
+ init_waitqueue_head(&priv->wait_command_queue);
+
+ INIT_WORK(&priv->up, iwl4965_bg_up, priv);
+ INIT_WORK(&priv->restart, iwl4965_bg_restart, priv);
+ INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish, priv);
+ INIT_WORK(&priv->scan_completed, iwl4965_bg_scan_completed, priv);
+ INIT_WORK(&priv->request_scan, iwl4965_bg_request_scan, priv);
+ INIT_WORK(&priv->abort_scan, iwl4965_bg_abort_scan, priv);
+ INIT_WORK(&priv->rf_kill, iwl4965_bg_rf_kill, priv);
+ INIT_WORK(&priv->beacon_update, iwl4965_bg_beacon_update, priv);
+ INIT_WORK(&priv->post_associate, iwl4965_bg_post_associate, priv);
+ INIT_WORK(&priv->init_alive_start, iwl4965_bg_init_alive_start, priv);
+ INIT_WORK(&priv->alive_start, iwl4965_bg_alive_start, priv);
+ INIT_WORK(&priv->scan_check, iwl4965_bg_scan_check, priv);
+
+ iwl4965_hw_setup_deferred_work(priv);
+
+ tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
+ iwl4965_irq_tasklet, (unsigned long)priv);
+}
+
+static void iwl4965_cancel_deferred_work(struct iwl4965_priv *priv)
+{
+ iwl4965_hw_cancel_deferred_work(priv);
+
+#if 0 /* Not in RHEL5...(and probably wrong upstream...) */
+ cancel_delayed_work_sync(&priv->init_alive_start);
+#else
+ cancel_delayed_work(&priv->init_alive_start);
+ /* Make sure he has completed, since he can schedule other work */
+ flush_workqueue(priv->workqueue);
+#endif
+ cancel_delayed_work(&priv->scan_check);
+ cancel_delayed_work(&priv->alive_start);
+ cancel_delayed_work(&priv->post_associate);
+#if 0 /* Not in RHEL5... */
+ cancel_work_sync(&priv->beacon_update);
+#else
+ flush_workqueue(priv->workqueue);
+#endif
+}
+
+static struct attribute *iwl4965_sysfs_entries[] = {
+ &dev_attr_antenna.attr,
+ &dev_attr_channels.attr,
+ &dev_attr_dump_errors.attr,
+ &dev_attr_dump_events.attr,
+ &dev_attr_flags.attr,
+ &dev_attr_filter_flags.attr,
+#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
+ &dev_attr_measurement.attr,
+#endif
+ &dev_attr_power_level.attr,
+ &dev_attr_retry_rate.attr,
+ &dev_attr_rf_kill.attr,
+ &dev_attr_rs_window.attr,
+ &dev_attr_statistics.attr,
+ &dev_attr_status.attr,
+ &dev_attr_temperature.attr,
+ &dev_attr_tune.attr,
+ &dev_attr_tx_power.attr,
+
+ NULL
+};
+
+static struct attribute_group iwl4965_attribute_group = {
+ .name = NULL, /* put in device directory */
+ .attrs = iwl4965_sysfs_entries,
+};
+
+static struct ieee80211_ops iwl4965_hw_ops = {
+ .tx = iwl4965_mac_tx,
+ .start = iwl4965_mac_start,
+ .stop = iwl4965_mac_stop,
+ .add_interface = iwl4965_mac_add_interface,
+ .remove_interface = iwl4965_mac_remove_interface,
+ .config = iwl4965_mac_config,
+ .config_interface = iwl4965_mac_config_interface,
+ .configure_filter = iwl4965_configure_filter,
+ .set_key = iwl4965_mac_set_key,
+ .get_stats = iwl4965_mac_get_stats,
+ .get_tx_stats = iwl4965_mac_get_tx_stats,
+ .conf_tx = iwl4965_mac_conf_tx,
+ .get_tsf = iwl4965_mac_get_tsf,
+ .reset_tsf = iwl4965_mac_reset_tsf,
+ .beacon_update = iwl4965_mac_beacon_update,
+ .erp_ie_changed = iwl4965_mac_erp_ie_changed,
+#ifdef CONFIG_IWL4965_HT
+ .conf_ht = iwl4965_mac_conf_ht,
+#ifdef CONFIG_IWL4965_HT_AGG
+ .ht_tx_agg_start = iwl4965_mac_ht_tx_agg_start,
+ .ht_tx_agg_stop = iwl4965_mac_ht_tx_agg_stop,
+ .ht_rx_agg_start = iwl4965_mac_ht_rx_agg_start,
+ .ht_rx_agg_stop = iwl4965_mac_ht_rx_agg_stop,
+#endif /* CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
+ .hw_scan = iwl4965_mac_hw_scan
+};
+
+static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ int err = 0;
+ struct iwl4965_priv *priv;
+ struct ieee80211_hw *hw;
+ int i;
+
+ /* Disabling hardware scan means that mac80211 will perform scans
+ * "the hard way", rather than using device's scan. */
+ if (iwl4965_param_disable_hw_scan) {
+ IWL_DEBUG_INFO("Disabling hw_scan\n");
+ iwl4965_hw_ops.hw_scan = NULL;
+ }
+
+ if ((iwl4965_param_queues_num > IWL_MAX_NUM_QUEUES) ||
+ (iwl4965_param_queues_num < IWL_MIN_NUM_QUEUES)) {
+ IWL_ERROR("invalid queues_num, should be between %d and %d\n",
+ IWL_MIN_NUM_QUEUES, IWL_MAX_NUM_QUEUES);
+ err = -EINVAL;
+ goto out;
+ }
+
+ /* mac80211 allocates memory for this device instance, including
+ * space for this driver's private structure */
+ hw = ieee80211_alloc_hw(sizeof(struct iwl4965_priv), &iwl4965_hw_ops);
+ if (hw == NULL) {
+ IWL_ERROR("Can not allocate network device\n");
+ err = -ENOMEM;
+ goto out;
+ }
+ SET_IEEE80211_DEV(hw, &pdev->dev);
+
+ hw->rate_control_algorithm = "iwl-4965-rs";
+
+ IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
+ priv = hw->priv;
+ priv->hw = hw;
+
+ priv->pci_dev = pdev;
+ priv->antenna = (enum iwl4965_antenna)iwl4965_param_antenna;
+#ifdef CONFIG_IWL4965_DEBUG
+ iwl4965_debug_level = iwl4965_param_debug;
+ atomic_set(&priv->restrict_refcnt, 0);
+#endif
+ priv->retry_rate = 1;
+
+ priv->ibss_beacon = NULL;
+
+ /* Tell mac80211 and its clients (e.g. Wireless Extensions)
+ * the range of signal quality values that we'll provide.
+ * Negative values for level/noise indicate that we'll provide dBm.
+ * For WE, at least, non-0 values here *enable* display of values
+ * in app (iwconfig). */
+ hw->max_rssi = -20; /* signal level, negative indicates dBm */
+ hw->max_noise = -20; /* noise level, negative indicates dBm */
+ hw->max_signal = 100; /* link quality indication (%) */
+
+ /* Tell mac80211 our Tx characteristics */
+ hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE;
+
+ /* Default value; 4 EDCA QOS priorities */
+ hw->queues = 4;
+#ifdef CONFIG_IWL4965_HT
+#ifdef CONFIG_IWL4965_HT_AGG
+ /* Enhanced value; more queues, to support 11n aggregation */
+ hw->queues = 16;
+#endif /* CONFIG_IWL4965_HT_AGG */
+#endif /* CONFIG_IWL4965_HT */
+
+ spin_lock_init(&priv->lock);
+ spin_lock_init(&priv->power_data.lock);
+ spin_lock_init(&priv->sta_lock);
+ spin_lock_init(&priv->hcmd_lock);
+ spin_lock_init(&priv->lq_mngr.lock);
+
+ for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++)
+ INIT_LIST_HEAD(&priv->ibss_mac_hash[i]);
+
+ INIT_LIST_HEAD(&priv->free_frames);
+
+ mutex_init(&priv->mutex);
+ if (pci_enable_device(pdev)) {
+ err = -ENODEV;
+ goto out_ieee80211_free_hw;
+ }
+
+ pci_set_master(pdev);
+
+ /* Clear the driver's (not device's) station table */
+ iwl4965_clear_stations_table(priv);
+
+ priv->data_retry_limit = -1;
+ priv->ieee_channels = NULL;
+ priv->ieee_rates = NULL;
+ priv->phymode = -1;
+
+ err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (!err)
+ err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ if (err) {
+ printk(KERN_WARNING DRV_NAME ": No suitable DMA available.\n");
+ goto out_pci_disable_device;
+ }
+
+ pci_set_drvdata(pdev, priv);
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err)
+ goto out_pci_disable_device;
+
+ /* We disable the RETRY_TIMEOUT register (0x41) to keep
+ * PCI Tx retries from interfering with C3 CPU state */
+ pci_write_config_byte(pdev, 0x41, 0x00);
+
+ priv->hw_base = pci_iomap(pdev, 0, 0);
+ if (!priv->hw_base) {
+ err = -ENODEV;
+ goto out_pci_release_regions;
+ }
+
+ IWL_DEBUG_INFO("pci_resource_len = 0x%08llx\n",
+ (unsigned long long) pci_resource_len(pdev, 0));
+ IWL_DEBUG_INFO("pci_resource_base = %p\n", priv->hw_base);
+
+ /* Initialize module parameter values here */
+
+ /* Disable radio (SW RF KILL) via parameter when loading driver */
+ if (iwl4965_param_disable) {
+ set_bit(STATUS_RF_KILL_SW, &priv->status);
+ IWL_DEBUG_INFO("Radio disabled.\n");
+ }
+
+ priv->iw_mode = IEEE80211_IF_TYPE_STA;
+
+ priv->ps_mode = 0;
+ priv->use_ant_b_for_management_frame = 1; /* start with ant B */
+ priv->valid_antenna = 0x7; /* assume all 3 connected */
+ priv->ps_mode = IWL_MIMO_PS_NONE;
+
+ /* Choose which receivers/antennas to use */
+ iwl4965_set_rxon_chain(priv);
+
+ printk(KERN_INFO DRV_NAME
+ ": Detected Intel Wireless WiFi Link 4965AGN\n");
+
+ /* Device-specific setup */
+ if (iwl4965_hw_set_hw_setting(priv)) {
+ IWL_ERROR("failed to set hw settings\n");
+ mutex_unlock(&priv->mutex);
+ goto out_iounmap;
+ }
+
+#ifdef CONFIG_IWL4965_QOS
+ if (iwl4965_param_qos_enable)
+ priv->qos_data.qos_enable = 1;
+
+ iwl4965_reset_qos(priv);
+
+ priv->qos_data.qos_active = 0;
+ priv->qos_data.qos_cap.val = 0;
+#endif /* CONFIG_IWL4965_QOS */
+
+ iwl4965_set_rxon_channel(priv, MODE_IEEE80211G, 6);
+ iwl4965_setup_deferred_work(priv);
+ iwl4965_setup_rx_handlers(priv);
+
+ priv->rates_mask = IWL_RATES_MASK;
+ /* If power management is turned on, default to AC mode */
+ priv->power_mode = IWL_POWER_AC;
+ priv->user_txpower_limit = IWL_DEFAULT_TX_POWER;
+
+ iwl4965_disable_interrupts(priv);
+
+ pci_enable_msi(pdev);
+
+ err = request_irq(pdev->irq, iwl4965_isr, IRQF_SHARED, DRV_NAME, priv);
+ if (err) {
+ IWL_ERROR("Error allocating IRQ %d\n", pdev->irq);
+ goto out_disable_msi;
+ }
+
+ mutex_lock(&priv->mutex);
+
+ err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group);
+ if (err) {
+ IWL_ERROR("failed to create sysfs device attributes\n");
+ mutex_unlock(&priv->mutex);
+ goto out_release_irq;
+ }
+
+ /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
+ * ucode filename and max sizes are card-specific. */
+ err = iwl4965_read_ucode(priv);
+ if (err) {
+ IWL_ERROR("Could not read microcode: %d\n", err);
+ mutex_unlock(&priv->mutex);
+ goto out_pci_alloc;
+ }
+
+ mutex_unlock(&priv->mutex);
+
+ IWL_DEBUG_INFO("Queueing UP work.\n");
+
+ queue_work(priv->workqueue, &priv->up);
+
+ return 0;
+
+ out_pci_alloc:
+ iwl4965_dealloc_ucode_pci(priv);
+
+ sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
+
+ out_release_irq:
+ free_irq(pdev->irq, priv);
+
+ out_disable_msi:
+ pci_disable_msi(pdev);
+ destroy_workqueue(priv->workqueue);
+ priv->workqueue = NULL;
+ iwl4965_unset_hw_setting(priv);
+
+ out_iounmap:
+ pci_iounmap(pdev, priv->hw_base);
+ out_pci_release_regions:
+ pci_release_regions(pdev);
+ out_pci_disable_device:
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+ out_ieee80211_free_hw:
+ ieee80211_free_hw(priv->hw);
+ out:
+ return err;
+}
+
+static void iwl4965_pci_remove(struct pci_dev *pdev)
+{
+ struct iwl4965_priv *priv = pci_get_drvdata(pdev);
+ struct list_head *p, *q;
+ int i;
+
+ if (!priv)
+ return;
+
+ IWL_DEBUG_INFO("*** UNLOAD DRIVER ***\n");
+
+ mutex_lock(&priv->mutex);
+ set_bit(STATUS_EXIT_PENDING, &priv->status);
+ __iwl4965_down(priv);
+ mutex_unlock(&priv->mutex);
+
+ /* Free MAC hash list for ADHOC */
+ for (i = 0; i < IWL_IBSS_MAC_HASH_SIZE; i++) {
+ list_for_each_safe(p, q, &priv->ibss_mac_hash[i]) {
+ list_del(p);
+ kfree(list_entry(p, struct iwl4965_ibss_seq, list));
+ }
+ }
+
+ sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
+
+ iwl4965_dealloc_ucode_pci(priv);
+
+ if (priv->rxq.bd)
+ iwl4965_rx_queue_free(priv, &priv->rxq);
+ iwl4965_hw_txq_ctx_free(priv);
+
+ iwl4965_unset_hw_setting(priv);
+ iwl4965_clear_stations_table(priv);
+
+ if (priv->mac80211_registered) {
+ ieee80211_unregister_hw(priv->hw);
+ iwl4965_rate_control_unregister(priv->hw);
+ }
+
+ /*netif_stop_queue(dev); */
+ flush_workqueue(priv->workqueue);
+
+ /* ieee80211_unregister_hw calls iwl4965_mac_stop, which flushes
+ * priv->workqueue... so we can't take down the workqueue
+ * until now... */
+ destroy_workqueue(priv->workqueue);
+ priv->workqueue = NULL;
+
+ free_irq(pdev->irq, priv);
+ pci_disable_msi(pdev);
+ pci_iounmap(pdev, priv->hw_base);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+
+ kfree(priv->channel_info);
+
+ kfree(priv->ieee_channels);
+ kfree(priv->ieee_rates);
+
+ if (priv->ibss_beacon)
+ dev_kfree_skb(priv->ibss_beacon);
+
+ ieee80211_free_hw(priv->hw);
+}
+
+#ifdef CONFIG_PM
+
+static int iwl4965_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct iwl4965_priv *priv = pci_get_drvdata(pdev);
+
+ mutex_lock(&priv->mutex);
+
+ set_bit(STATUS_IN_SUSPEND, &priv->status);
+
+ /* Take down the device; powers it off, etc. */
+ __iwl4965_down(priv);
+
+ if (priv->mac80211_registered)
+ ieee80211_stop_queues(priv->hw);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, PCI_D3hot);
+
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+
+static void iwl4965_resume(struct iwl4965_priv *priv)
+{
+ unsigned long flags;
+
+ /* The following it a temporary work around due to the
+ * suspend / resume not fully initializing the NIC correctly.
+ * Without all of the following, resume will not attempt to take
+ * down the NIC (it shouldn't really need to) and will just try
+ * and bring the NIC back up. However that fails during the
+ * ucode verification process. This then causes iwl4965_down to be
+ * called *after* iwl4965_hw_nic_init() has succeeded -- which
+ * then lets the next init sequence succeed. So, we've
+ * replicated all of that NIC init code here... */
+
+ iwl4965_write32(priv, CSR_INT, 0xFFFFFFFF);
+
+ iwl4965_hw_nic_init(priv);
+
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+ iwl4965_write32(priv, CSR_INT, 0xFFFFFFFF);
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl4965_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+ /* tell the device to stop sending interrupts */
+ iwl4965_disable_interrupts(priv);
+
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl4965_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+
+ if (!iwl4965_grab_nic_access(priv)) {
+ iwl4965_write_prph(priv, APMG_CLK_DIS_REG,
+ APMG_CLK_VAL_DMA_CLK_RQT);
+ iwl4965_release_nic_access(priv);
+ }
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ udelay(5);
+
+ iwl4965_hw_nic_reset(priv);
+
+ /* Bring the device back up */
+ clear_bit(STATUS_IN_SUSPEND, &priv->status);
+ queue_work(priv->workqueue, &priv->up);
+}
+
+static int iwl4965_pci_resume(struct pci_dev *pdev)
+{
+ struct iwl4965_priv *priv = pci_get_drvdata(pdev);
+ int err;
+
+ printk(KERN_INFO "Coming out of suspend...\n");
+
+ mutex_lock(&priv->mutex);
+
+ pci_set_power_state(pdev, PCI_D0);
+ err = pci_enable_device(pdev);
+ pci_restore_state(pdev);
+
+ /*
+ * Suspend/Resume resets the PCI configuration space, so we have to
+ * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
+ * from interfering with C3 CPU state. pci_restore_state won't help
+ * here since it only restores the first 64 bytes pci config header.
+ */
+ pci_write_config_byte(pdev, 0x41, 0x00);
+
+ iwl4965_resume(priv);
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+
+#endif /* CONFIG_PM */
+
+/*****************************************************************************
+ *
+ * driver and module entry point
+ *
+ *****************************************************************************/
+
+static struct pci_driver iwl4965_driver = {
+ .name = DRV_NAME,
+ .id_table = iwl4965_hw_card_ids,
+ .probe = iwl4965_pci_probe,
+ .remove = __devexit_p(iwl4965_pci_remove),
+#ifdef CONFIG_PM
+ .suspend = iwl4965_pci_suspend,
+ .resume = iwl4965_pci_resume,
+#endif
+};
+
+static int __init iwl4965_init(void)
+{
+
+ int ret;
+ printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
+ printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
+ ret = pci_register_driver(&iwl4965_driver);
+ if (ret) {
+ IWL_ERROR("Unable to initialize PCI module\n");
+ return ret;
+ }
+#ifdef CONFIG_IWL4965_DEBUG
+ ret = driver_create_file(&iwl4965_driver.driver, &driver_attr_debug_level);
+ if (ret) {
+ IWL_ERROR("Unable to create driver sysfs file\n");
+ pci_unregister_driver(&iwl4965_driver);
+ return ret;
+ }
+#endif
+
+ return ret;
+}
+
+static void __exit iwl4965_exit(void)
+{
+#ifdef CONFIG_IWL4965_DEBUG
+ driver_remove_file(&iwl4965_driver.driver, &driver_attr_debug_level);
+#endif
+ pci_unregister_driver(&iwl4965_driver);
+}
+
+module_param_named(antenna, iwl4965_param_antenna, int, 0444);
+MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
+module_param_named(disable, iwl4965_param_disable, int, 0444);
+MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
+module_param_named(hwcrypto, iwl4965_param_hwcrypto, int, 0444);
+MODULE_PARM_DESC(hwcrypto,
+ "using hardware crypto engine (default 0 [software])\n");
+module_param_named(debug, iwl4965_param_debug, int, 0444);
+MODULE_PARM_DESC(debug, "debug output mask");
+module_param_named(disable_hw_scan, iwl4965_param_disable_hw_scan, int, 0444);
+MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
+
+module_param_named(queues_num, iwl4965_param_queues_num, int, 0444);
+MODULE_PARM_DESC(queues_num, "number of hw queues.");
+
+/* QoS */
+module_param_named(qos_enable, iwl4965_param_qos_enable, int, 0444);
+MODULE_PARM_DESC(qos_enable, "enable all QoS functionality");
+module_param_named(amsdu_size_8K, iwl4965_param_amsdu_size_8K, int, 0444);
+MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
+
+module_exit(iwl4965_exit);
+module_init(iwl4965_init);
diff --git a/drivers/net/wireless/iwlwifi/iwlwifi.h b/drivers/net/wireless/iwlwifi/iwlwifi.h
index 0d45312..87606dd 100644
--- a/drivers/net/wireless/iwlwifi/iwlwifi.h
+++ b/drivers/net/wireless/iwlwifi/iwlwifi.h
@@ -31,20 +31,31 @@
#define __iwlwifi_h__
#include <linux/pci.h> /* for struct pci_device_id */
+#include <linux/kernel.h>
#include <net/ieee80211_radiotap.h>
+#include "iwl-compat.h"
+
struct iwl_priv;
/* Hardware specific file defines the PCI IDs table for that hardware module */
extern struct pci_device_id iwl_hw_card_ids[];
#if IWL == 3945
+
#define DRV_NAME "iwl3945"
+#include "iwl-hw.h"
+#include "iwl-3945-hw.h"
+
#elif IWL == 4965
+
#define DRV_NAME "iwl4965"
+#include "iwl-hw.h"
+#include "iwl-4965-hw.h"
+
#endif
-#include "iwl-hw.h"
+#include "iwl-prph.h"
/*
* Driver implementation data structures, constants, inline
@@ -58,16 +69,28 @@ extern struct pci_device_id iwl_hw_card_ids[];
#include "iwl-debug.h"
+/* Default noise level to report when noise measurement is not available.
+ * This may be because we're:
+ * 1) Not associated (4965, no beacon statistics being sent to driver)
+ * 2) Scanning (noise measurement does not apply to associated channel)
+ * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
+ * Use default noise value of -127 ... this is below the range of measurable
+ * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
+ * Also, -127 works better than 0 when averaging frames with/without
+ * noise info (e.g. averaging might be done in app); measured dBm values are
+ * always negative ... using a negative value as the default keeps all
+ * averages within an s8's (used in some apps) range of negative values. */
+#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
/* Module parameters accessible from iwl-*.c */
-extern int param_disable_hw_scan;
-extern int param_debug;
-extern int param_mode;
-extern int param_disable;
-extern int param_antenna;
-extern int param_hwcrypto;
-extern int param_qos_enable;
-
+extern int iwl_param_disable_hw_scan;
+extern int iwl_param_debug;
+extern int iwl_param_mode;
+extern int iwl_param_disable;
+extern int iwl_param_antenna;
+extern int iwl_param_hwcrypto;
+extern int iwl_param_qos_enable;
+extern int iwl_param_queues_num;
enum iwl_antenna {
IWL_ANTENNA_DIVERSITY,
@@ -103,7 +126,7 @@ struct iwl_rt_rx_hdr {
__le64 rt_tsf; /* TSF */
u8 rt_flags; /* radiotap packet flags */
u8 rt_rate; /* rate in 500kb/s */
- __le16 rt_channel; /* channel in mHz */
+ __le16 rt_channelMHz; /* channel in MHz */
__le16 rt_chbitmask; /* channel bitfield */
s8 rt_dbmsignal; /* signal in dBm, kluged to signed */
s8 rt_dbmnoise;
@@ -133,7 +156,6 @@ struct iwl_queue {
dma_addr_t dma_addr; /* physical addr for BD's */
int n_window; /* safe queue window */
u32 id;
- u32 element_size;
int low_mark; /* low watermark, resume queue if free
* space more than this */
int high_mark; /* high watermark, stop queue if free
@@ -156,7 +178,7 @@ struct iwl_tx_info {
*/
struct iwl_tx_queue {
struct iwl_queue q;
- u8 *bd;
+ struct iwl_tfd_frame *bd;
struct iwl_cmd *cmd;
dma_addr_t dma_addr_cmd;
struct iwl_tx_info *txb;
@@ -173,14 +195,16 @@ struct iwl_tx_queue {
#include "iwl-4965-rs.h"
#endif
-#define IWL_TX_QUEUE_AC0 0
-#define IWL_TX_QUEUE_AC1 1
-#define IWL_TX_QUEUE_AC2 2
-#define IWL_TX_QUEUE_AC3 3
-#define IWL_TX_QUEUE_HCCA_1 5
-#define IWL_TX_QUEUE_HCCA_2 6
-#define IWL_TX_QUEUE_NONE 7
-#define IWL_MAX_NUM_QUEUES 16
+#define IWL_TX_FIFO_AC0 0
+#define IWL_TX_FIFO_AC1 1
+#define IWL_TX_FIFO_AC2 2
+#define IWL_TX_FIFO_AC3 3
+#define IWL_TX_FIFO_HCCA_1 5
+#define IWL_TX_FIFO_HCCA_2 6
+#define IWL_TX_FIFO_NONE 7
+
+/* Minimum number of queues. MAX_NUM is defined in hw specific files */
+#define IWL_MIN_NUM_QUEUES 4
/* Power management (not Tx power) structures */
@@ -229,9 +253,10 @@ struct iwl_frame {
#define SEQ_TO_INDEX(x) (x & 0xff)
#define INDEX_TO_SEQ(x) (x & 0xff)
#define SEQ_HUGE_FRAME (0x4000)
-#define SEQ_RX_FRAME (0x8000)
+#define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
-#define SN_TO_SEQ(ssn) (((ssn) << 4 ) & IEEE80211_SCTL_SEQ)
+#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
+#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
enum {
/* CMD_SIZE_NORMAL = 0, */
@@ -240,31 +265,23 @@ enum {
CMD_ASYNC = (1 << 1),
/* CMD_NO_SKB = 0, */
CMD_WANT_SKB = (1 << 2),
- /* CMD_LOCK = 0, */
- CMD_NO_LOCK = (1 << 4),
};
struct iwl_cmd;
struct iwl_priv;
-#define CMD_VAR_MAGIC 0xA987
-
struct iwl_cmd_meta {
struct iwl_cmd_meta *source;
union {
struct sk_buff *skb;
- int (*callback)(struct iwl_priv * priv,
- struct iwl_cmd * cmd, struct sk_buff * skb);
+ int (*callback)(struct iwl_priv *priv,
+ struct iwl_cmd *cmd, struct sk_buff *skb);
} __attribute__ ((packed)) u;
- u16 len;
-
/* The CMD_SIZE_HUGE flag bit indicates that the command
* structure is stored at the end of the shared queue memory. */
- u8 flags;
+ u32 flags;
- u8 token;
- u16 magic;
} __attribute__ ((packed));
struct iwl_cmd {
@@ -282,10 +299,8 @@ struct iwl_cmd {
struct iwl_powertable_cmd powertable;
struct iwl_qosparam_cmd qosparam;
struct iwl_tx_cmd tx;
- struct iwl_key_cmd key;
struct iwl_tx_beacon_cmd tx_beacon;
struct iwl_rxon_assoc_cmd rxon_assoc;
- struct iwl_rate_scaling_cmd rate_scale;
u8 *indirect;
u8 payload[360];
} __attribute__ ((packed)) cmd;
@@ -304,12 +319,8 @@ struct iwl_host_cmd {
/*
* RX related structures and functions
*/
-
-#if IWL == 3945
-#define RX_SPACE_HIGH_MARK 52
-#else
-#define RX_SPACE_HIGH_MARK 210
-#endif
+#define RX_FREE_BUFFERS 64
+#define RX_LOW_WATERMARK 8
#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
@@ -328,7 +339,7 @@ struct iwl_host_cmd {
* NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
*/
struct iwl_rx_queue {
- void *bd;
+ __le32 *bd;
dma_addr_t dma_addr;
struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
@@ -352,51 +363,54 @@ struct iwl_rx_queue {
#define MAX_B_CHANNELS 14
#define MIN_B_CHANNELS 1
-#define STATUS_HCMD_ACTIVE (1<<0) /* host command in progress */
-
-#define STATUS_INT_ENABLED (1<<1)
-#define STATUS_RF_KILL_HW (1<<2)
-#define STATUS_RF_KILL_SW (1<<3)
-#define STATUS_RF_KILL_MASK (STATUS_RF_KILL_HW | STATUS_RF_KILL_SW)
-
-#define STATUS_INIT (1<<4)
-#define STATUS_ALIVE (1<<5)
-#define STATUS_READY (1<<6)
-#define STATUS_TEMPERATURE (1<<7)
-#define STATUS_GEO_CONFIGURED (1<<8)
-#define STATUS_EXIT_PENDING (1<<9)
-#define STATUS_IN_SUSPEND (1<<10)
-#define STATUS_STATISTICS (1<<11)
-
-#define STATUS_AUTH (1<<13)
-
-#define STATUS_DISASSOCIATING (1<<15)
-
-#define STATUS_ROAMING (1<<16)
-#define STATUS_SCANNING (1<<17)
-#define STATUS_SCAN_ABORTING (1<<19)
-#define STATUS_SCAN_PENDING (1<<20)
-#define STATUS_SCAN_HW (1<<21)
-
-#define STATUS_POWER_PMI (1<<24)
-#define STATUS_RESTRICTED (1<<26)
-#define STATUS_FW_ERROR (1<<27)
-
-#define STATUS_TX_MEASURE (1<<28)
-
-/*todoG need to support adding adhoc station MAX_STATION should be 25 */
-#define IWL_INVALID_STATION (0xff)
+#define STATUS_HCMD_ACTIVE 0 /* host command in progress */
+#define STATUS_INT_ENABLED 1
+#define STATUS_RF_KILL_HW 2
+#define STATUS_RF_KILL_SW 3
+#define STATUS_INIT 4
+#define STATUS_ALIVE 5
+#define STATUS_READY 6
+#define STATUS_TEMPERATURE 7
+#define STATUS_GEO_CONFIGURED 8
+#define STATUS_EXIT_PENDING 9
+#define STATUS_IN_SUSPEND 10
+#define STATUS_STATISTICS 11
+#define STATUS_SCANNING 12
+#define STATUS_SCAN_ABORTING 13
+#define STATUS_SCAN_HW 14
+#define STATUS_POWER_PMI 15
+#define STATUS_FW_ERROR 16
#define MAX_TID_COUNT 9
#define IWL_INVALID_RATE 0xFF
#define IWL_INVALID_VALUE -1
+
+#if IWL == 4965
+#ifdef CONFIG_IWLWIFI_HT
+#ifdef CONFIG_IWLWIFI_HT_AGG
+struct iwl_ht_agg {
+ u16 txq_id;
+ u16 frame_count;
+ u16 wait_for_ba;
+ u16 start_idx;
+ u32 bitmap0;
+ u32 bitmap1;
+ u32 rate_n_flags;
+};
+#endif /* CONFIG_IWLWIFI_HT_AGG */
+#endif /* CONFIG_IWLWIFI_HT */
+#endif
+
struct iwl_tid_data {
u16 seq_number;
+#if IWL == 4965
+#ifdef CONFIG_IWLWIFI_HT
#ifdef CONFIG_IWLWIFI_HT_AGG
- s8 txq_id;
- u8 ht_agg_active;
-#endif /* CONFIG_IWLWIFI_HT_AGG */
+ struct iwl_ht_agg agg;
+#endif /* CONFIG_IWLWIFI_HT_AGG */
+#endif /* CONFIG_IWLWIFI_HT */
+#endif
};
struct iwl_hw_key {
@@ -423,10 +437,10 @@ struct sta_ht_info {
u8 is_ht;
u16 rx_mimo_ps_mode;
u16 tx_mimo_ps_mode;
+ u16 control_channel;
u8 max_amsdu_size;
u8 ampdu_factor;
u8 mpdu_density;
- u8 control_chan;
u8 operating_mode;
u8 supported_chan_width;
u8 extension_chan_offset;
@@ -438,12 +452,44 @@ struct sta_ht_info {
};
#endif /*CONFIG_IWLWIFI_HT */
+#ifdef CONFIG_IWLWIFI_QOS
+
+union iwl_qos_capabity {
+ struct {
+ u8 edca_count:4; /* bit 0-3 */
+ u8 q_ack:1; /* bit 4 */
+ u8 queue_request:1; /* bit 5 */
+ u8 txop_request:1; /* bit 6 */
+ u8 reserved:1; /* bit 7 */
+ } q_AP;
+ struct {
+ u8 acvo_APSD:1; /* bit 0 */
+ u8 acvi_APSD:1; /* bit 1 */
+ u8 ac_bk_APSD:1; /* bit 2 */
+ u8 ac_be_APSD:1; /* bit 3 */
+ u8 q_ack:1; /* bit 4 */
+ u8 max_len:2; /* bit 5-6 */
+ u8 more_data_ack:1; /* bit 7 */
+ } q_STA;
+ u8 val;
+};
+
+/* QoS sturctures */
+struct iwl_qos_info {
+ int qos_enable;
+ int qos_active;
+ union iwl_qos_capabity qos_cap;
+ struct iwl_qosparam_cmd def_qos_parm;
+};
+#endif /*CONFIG_IWLWIFI_QOS */
+
#define STA_PS_STATUS_WAKE 0
#define STA_PS_STATUS_SLEEP 1
struct iwl_station_entry {
struct iwl_addsta_cmd sta;
struct iwl_tid_data tid[MAX_TID_COUNT];
+#if IWL == 3945
union {
struct {
u8 rate;
@@ -451,6 +497,7 @@ struct iwl_station_entry {
} s;
u16 rate_n_flags;
} current_rate;
+#endif
u8 used;
u8 ps_status;
struct iwl_hw_key keyinfo;
@@ -466,15 +513,15 @@ struct fw_image_desc {
/* uCode file layout */
struct iwl_ucode {
__le32 ver; /* major/minor/subminor */
- __le32 inst_size; /* bytes of runtime instructions */
- __le32 data_size; /* bytes of runtime data */
- __le32 init_size; /* bytes of initialization instructions */
+ __le32 inst_size; /* bytes of runtime instructions */
+ __le32 data_size; /* bytes of runtime data */
+ __le32 init_size; /* bytes of initialization instructions */
__le32 init_data_size; /* bytes of initialization data */
- __le32 boot_size; /* bytes of bootstrap instructions */
+ __le32 boot_size; /* bytes of bootstrap instructions */
u8 data[0]; /* data in same order as "size" elements */
};
-#define IWL_IBSS_MAC_HASH_SIZE 31
+#define IWL_IBSS_MAC_HASH_SIZE 32
struct iwl_ibss_seq {
u8 mac[ETH_ALEN];
@@ -485,35 +532,31 @@ struct iwl_ibss_seq {
};
struct iwl_driver_hw_info {
- u16 max_queue_number;
+ u16 max_txq_num;
u16 ac_queue_count;
u32 rx_buffer_size;
u16 tx_cmd_len;
u16 max_rxq_size;
u16 max_rxq_log;
u32 cck_flag;
+ u8 max_stations;
+ u8 bcast_sta_id;
void *shared_virt;
dma_addr_t shared_phys;
};
-#define STA_FLG_RTS_MIMO_PROT_POS (17)
-#define STA_FLG_RTS_MIMO_PROT_MSK (1 << STA_FLG_RTS_MIMO_PROT_POS)
-#define STA_FLG_AGG_MPDU_8US_POS (18)
-#define STA_FLG_AGG_MPDU_8US_MSK (1 << STA_FLG_AGG_MPDU_8US_POS)
+#define STA_FLG_RTS_MIMO_PROT_MSK __constant_cpu_to_le32(1 << 17)
+#define STA_FLG_AGG_MPDU_8US_MSK __constant_cpu_to_le32(1 << 18)
#define STA_FLG_MAX_AGG_SIZE_POS (19)
-#define STA_FLG_MAX_AGG_SIZE_MSK (3 << STA_FLG_MAX_AGG_SIZE_POS)
-#define STA_FLG_FAT_EN_POS (21)
-#define STA_FLG_FAT_EN_MSK (1 << STA_FLG_FAT_EN_POS)
-#define STA_FLG_MIMO_DIS_POS (22)
-#define STA_FLG_MIMO_DIS_MSK (1 << STA_FLG_MIMO_DIS_POS)
+#define STA_FLG_MAX_AGG_SIZE_MSK __constant_cpu_to_le32(3 << 19)
+#define STA_FLG_FAT_EN_MSK __constant_cpu_to_le32(1 << 21)
+#define STA_FLG_MIMO_DIS_MSK __constant_cpu_to_le32(1 << 22)
#define STA_FLG_AGG_MPDU_DENSITY_POS (23)
-#define STA_FLG_AGG_MPDU_DENSITY_MSK (7 << STA_FLG_AGG_MPDU_DENSITY_POS)
+#define STA_FLG_AGG_MPDU_DENSITY_MSK __constant_cpu_to_le32(7 << 23)
#define HT_SHORT_GI_20MHZ_ONLY (1 << 0)
#define HT_SHORT_GI_40MHZ_ONLY (1 << 1)
-#include "iwl-3945.h"
-#include "iwl-4965.h"
#include "iwl-priv.h"
@@ -532,7 +575,7 @@ struct iwl_driver_hw_info {
/******************************************************************************
*
- * Functions implemented in base.c which are forward declared here
+ * Functions implemented in iwl-base.c which are forward declared here
* for use by iwl-*.c
*
*****************************************************************************/
@@ -540,7 +583,7 @@ struct iwl_addsta_cmd;
extern int iwl_send_add_station(struct iwl_priv *priv,
struct iwl_addsta_cmd *sta, u8 flags);
extern const char *iwl_get_tx_fail_reason(u32 status);
-extern u8 iwl_add_station(struct iwl_priv *priv, const u8 * bssid,
+extern u8 iwl_add_station(struct iwl_priv *priv, const u8 *bssid,
int is_ap, u8 flags);
extern int iwl_is_network_packet(struct iwl_priv *priv,
struct ieee80211_hdr *header);
@@ -574,26 +617,31 @@ extern int iwl_calc_sig_qual(int rssi_dbm, int noise_dbm);
extern int iwl_tx_queue_init(struct iwl_priv *priv,
struct iwl_tx_queue *txq, int count, u32 id);
extern int iwl_rx_queue_restock(struct iwl_priv *priv);
-extern void iwl_rx_replenish(void *data, u8 do_lock);
+extern void iwl_rx_replenish(void *data);
extern void iwl_tx_queue_free(struct iwl_priv *priv, struct iwl_tx_queue *txq);
extern int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len,
const void *data);
+extern int __must_check iwl_send_cmd_async(struct iwl_priv *priv,
+ struct iwl_host_cmd *cmd);
+extern int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
+ struct iwl_host_cmd *cmd);
extern int __must_check iwl_send_cmd(struct iwl_priv *priv,
- struct iwl_host_cmd *cmd);
-extern int iwl_fill_beacon_frame(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr, const u8 * dest,
- int left);
+ struct iwl_host_cmd *cmd);
+extern unsigned int iwl_fill_beacon_frame(struct iwl_priv *priv,
+ struct ieee80211_hdr *hdr,
+ const u8 *dest, int left);
extern int iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
struct iwl_rx_queue *q);
extern int iwl_send_statistics_request(struct iwl_priv *priv);
extern void iwl_set_decrypted_flag(struct iwl_priv *priv, struct sk_buff *skb,
u32 decrypt_res,
struct ieee80211_rx_status *stats);
+extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
extern const u8 BROADCAST_ADDR[ETH_ALEN];
/*
- * Currently used by ipw-3945-rs... look at restructuring so that it doesn't
+ * Currently used by iwl-3945-rs... look at restructuring so that it doesn't
* call this... todo... fix that.
*/
extern u8 iwl_sync_station(struct iwl_priv *priv, int sta_id,
@@ -601,25 +649,23 @@ extern u8 iwl_sync_station(struct iwl_priv *priv, int sta_id,
static inline int iwl_is_associated(struct iwl_priv *priv)
{
- return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ?
- 1 : 0;
+ return (priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
}
-extern void iwl_down(struct iwl_priv *priv);
/******************************************************************************
*
- * Functions implemented in iwl-*.c which are forward declared here
- * for use by base.c
+ * Functions implemented in iwl-[34]*.c which are forward declared here
+ * for use by iwl-base.c
*
* NOTE: The implementation of these functions are hardware specific
- * which is why they are in the hardware specific files (vs. base.c)
+ * which is why they are in the hardware specific files (vs. iwl-base.c)
*
* Naming convention --
* iwl_ <-- Its part of iwlwifi (should be changed to iwl_)
* iwl_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
* iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
* iwl_bg_ <-- Called from work queue context
- * d_ <-- mac80211 callback
+ * iwl_mac_ <-- mac80211 callback
*
****************************************************************************/
extern void iwl_hw_rx_handler_setup(struct iwl_priv *priv);
@@ -633,17 +679,14 @@ extern int iwl_hw_nic_stop_master(struct iwl_priv *priv);
extern void iwl_hw_txq_ctx_free(struct iwl_priv *priv);
extern void iwl_hw_txq_ctx_stop(struct iwl_priv *priv);
extern int iwl_hw_nic_reset(struct iwl_priv *priv);
-extern int iwl_hw_tx_queue_attach_buffer_to_tfd(
- struct iwl_priv *priv, void *tfd, dma_addr_t addr, u16 len);
-extern int iwl_hw_tx_queue_free_tfd(struct iwl_priv *priv,
- struct iwl_tx_queue *txq);
+extern int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv, void *tfd,
+ dma_addr_t addr, u16 len);
+extern int iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
extern int iwl_hw_get_temperature(struct iwl_priv *priv);
-extern int iwl_tx_queue_free_tfd(struct iwl_priv *priv,
- struct iwl_tx_queue *txq);
extern int iwl_hw_tx_queue_init(struct iwl_priv *priv,
struct iwl_tx_queue *txq);
-extern int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
- struct iwl_frame *frame, u16 rate);
+extern unsigned int iwl_hw_get_beacon_cmd(struct iwl_priv *priv,
+ struct iwl_frame *frame, u8 rate);
extern int iwl_hw_get_rx_read(struct iwl_priv *priv);
extern void iwl_hw_build_tx_cmd_rate(struct iwl_priv *priv,
struct iwl_cmd *cmd,
@@ -665,7 +708,8 @@ extern int iwl4965_get_temperature(const struct iwl_priv *priv);
* not yet been merged into a single common layer for managing the
* station tables.
*/
-extern u8 iwl_hw_find_station(struct iwl_priv *priv, const u8 * bssid);
-
+extern u8 iwl_hw_find_station(struct iwl_priv *priv, const u8 *bssid);
+extern int iwl_hw_channel_switch(struct iwl_priv *priv, u16 channel);
+extern int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
#endif
diff --git a/include/net/mac80211_compat.h b/include/net/mac80211_compat.h
index bd6ee09..6231b27 100644
--- a/include/net/mac80211_compat.h
+++ b/include/net/mac80211_compat.h
@@ -3,11 +3,6 @@
#define BIT(nr) (1UL << (nr))
-enum {
- false = 0,
- true = 1
-};
-
/*
* We tag multicasts with these structures.
*/
distrib
>
Scientific%20Linux
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5x
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x86_64
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by-pkgid
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27922b4260f65d317aabda37e42bbbff
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files
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2808
