#!/bin/sh

# Some broken BIOSes, like those found in early Gericom 3xC notebooks,
# won't wake up harddisks from suspend to disk unless they're set to PIO mode
# and 16-bit.
# Don't activate the following two lines unless you're getting
# "hda: lost interrupt" after returning from a suspend to disk.
# SUSPEND_DISK="-q -X0 -q -c0 -q -d0 -q -u0 -q -S0"
# RESUME_DISK="-q -X66 -q -c1 -q -d1 -q -u1 -q -S30"

. "${PM_FUNCTIONS}"

run_hdparm() {
    local HDPARM_OPTIONS=$*

    [ -x /sbin/hdparm ] || return 1
    for i in /proc/ide/hd*; do
	DRIVE=/dev/`echo $i |sed -e "s,.*/,,g"`
	if test "x`cat $i/media`" = "xdisk"; then
	    hdparm $HDPARM_OPTIONS $DRIVE
	fi
    done
}

suspend_disk() {
    if [ -n "$SUSPEND_DISK" ]; then
	run_hdparm $SUSPEND_DISK
    fi
    return 0
}

resume_disk() {
    if [ -n "$RESUME_DISK" ]; then
	run_hdparm $RESUME_DISK
    fi
    return 0
}

case "$1" in
	hibernate|suspend)
		suspend_disk
		;;
	thaw|resume)
		resume_disk
		;;
	*)
		;;
esac

exit $?