include/linux/mtd/nand_ecc.h

   1 /*
   2  *  drivers/mtd/nand_ecc.h
   3  *
   4  *  Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
   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
  16 struct mtd_info;
  17
  18 /*
  19  * Calculate 3 byte ECC code for eccsize byte block
  20  */
  21 void __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  */
  27 int 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  */
  32 int __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  */
  38 int 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__ */