LXR linux/include/linux/mtd/nand

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