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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>struct nand_ecc_ctrl</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="MTD NAND Driver Programming Interface" /><link rel="up" href="ch09.html" title="Chapter 9. Structures" /><link rel="prev" href="re01.html" title="struct nand_hw_control" /><link rel="next" href="re03.html" title="struct nand_buffers" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>struct nand_ecc_ctrl</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re01.html">Prev</a> </td><th width="60%" align="center">Chapter 9. Structures</th><td width="20%" align="right"> <a accesskey="n" href="re03.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="struct nand_ecc_ctrl"><a id="API-struct-nand-ecc-ctrl"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>struct nand_ecc_ctrl —
Control structure for ecc
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><pre class="programlisting">
struct nand_ecc_ctrl {
nand_ecc_modes_t mode;
int steps;
int size;
int bytes;
int total;
int prepad;
int postpad;
struct nand_ecclayout * layout;
void (* hwctl) (struct mtd_info *mtd, int mode);
int (* calculate) (struct mtd_info *mtd,const uint8_t *dat,uint8_t *ecc_code);
int (* correct) (struct mtd_info *mtd, uint8_t *dat,uint8_t *read_ecc,uint8_t *calc_ecc);
int (* read_page_raw) (struct mtd_info *mtd,struct nand_chip *chip,uint8_t *buf, int page);
void (* write_page_raw) (struct mtd_info *mtd,struct nand_chip *chip,const uint8_t *buf);
int (* read_page) (struct mtd_info *mtd,struct nand_chip *chip,uint8_t *buf, int page);
int (* read_subpage) (struct mtd_info *mtd,struct nand_chip *chip,uint32_t offs, uint32_t len,uint8_t *buf);
void (* write_page) (struct mtd_info *mtd,struct nand_chip *chip,const uint8_t *buf);
int (* read_oob) (struct mtd_info *mtd,struct nand_chip *chip,int page,int sndcmd);
int (* write_oob) (struct mtd_info *mtd,struct nand_chip *chip,int page);
}; </pre></div><div class="refsect1" title="Members"><a id="id2713534"></a><h2>Members</h2><div class="variablelist"><dl><dt><span class="term">mode</span></dt><dd><p>
ecc mode
</p></dd><dt><span class="term">steps</span></dt><dd><p>
number of ecc steps per page
</p></dd><dt><span class="term">size</span></dt><dd><p>
data bytes per ecc step
</p></dd><dt><span class="term">bytes</span></dt><dd><p>
ecc bytes per step
</p></dd><dt><span class="term">total</span></dt><dd><p>
total number of ecc bytes per page
</p></dd><dt><span class="term">prepad</span></dt><dd><p>
padding information for syndrome based ecc generators
</p></dd><dt><span class="term">postpad</span></dt><dd><p>
padding information for syndrome based ecc generators
</p></dd><dt><span class="term">layout</span></dt><dd><p>
ECC layout control struct pointer
</p></dd><dt><span class="term">hwctl</span></dt><dd><p>
function to control hardware ecc generator. Must only
be provided if an hardware ECC is available
</p></dd><dt><span class="term">calculate</span></dt><dd><p>
function for ecc calculation or readback from ecc hardware
</p></dd><dt><span class="term">correct</span></dt><dd><p>
function for ecc correction, matching to ecc generator (sw/hw)
</p></dd><dt><span class="term">read_page_raw</span></dt><dd><p>
function to read a raw page without ECC
</p></dd><dt><span class="term">write_page_raw</span></dt><dd><p>
function to write a raw page without ECC
</p></dd><dt><span class="term">read_page</span></dt><dd><p>
function to read a page according to the ecc generator requirements
</p></dd><dt><span class="term">read_subpage</span></dt><dd><p>
function to read parts of the page covered by ECC.
</p></dd><dt><span class="term">write_page</span></dt><dd><p>
function to write a page according to the ecc generator requirements
</p></dd><dt><span class="term">read_oob</span></dt><dd><p>
function to read chip OOB data
</p></dd><dt><span class="term">write_oob</span></dt><dd><p>
function to write chip OOB data
</p></dd></dl></div></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re01.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch09.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re03.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>struct nand_hw_control</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>struct nand_buffers</span></td></tr></table></div></body></html>
