LXR linux/include/linux/mtd/nand

   1/*
   2 *  drivers/mtd/nand_ecc.h
   3 *
   4 *  Copyright (C) 2000-2010 Steven J. Hill <sjhill@realitydiluted.com>
   5 *                          David Woodhouse <dwmw2@infradead.org>
   6 *                          Thomas Gleixner <tglx@linutronix.de>
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License version 2 as
  10 * published by the Free Software Foundation.
  11 *
  12 * This file is the header for the ECC algorithm.
  13 */
  14
  15#ifndef __MTD_NAND_ECC_H__
  16#define __MTD_NAND_ECC_H__
  17
  18struct mtd_info;
  19
  20/*
  21 * Calculate 3 byte ECC code for eccsize byte block
  22 */
  23void __nand_calculate_ecc(const u_char *dat, unsigned int eccsize,
  24                                u_char *ecc_code);
  25
  26/*
  27 * Calculate 3 byte ECC code for 256/512 byte block
  28 */
  29int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code);
  30
  31/*
  32 * Detect and correct a 1 bit error for eccsize byte block
  33 */
  34int __nand_correct_data(u_char *dat, u_char *read_ecc, u_char *calc_ecc,
  35                        unsigned int eccsize);
  36
  37/*
  38 * Detect and correct a 1 bit error for 256/512 byte block
  39 */
  40int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
  41
  42#endif /* __MTD_NAND_ECC_H__ */
  43