root/include/linux/mtd/nand_ecc.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *  Copyright (C) 2000-2010 Steven J. Hill <sjhill@realitydiluted.com>
   4  *                          David Woodhouse <dwmw2@infradead.org>
   5  *                          Thomas Gleixner <tglx@linutronix.de>
   6  *
   7  * This file is the header for the ECC algorithm.
   8  */
   9 
  10 #ifndef __MTD_NAND_ECC_H__
  11 #define __MTD_NAND_ECC_H__
  12 
  13 struct nand_chip;
  14 
  15 /*
  16  * Calculate 3 byte ECC code for eccsize byte block
  17  */
  18 void __nand_calculate_ecc(const u_char *dat, unsigned int eccsize,
  19                           u_char *ecc_code, bool sm_order);
  20 
  21 /*
  22  * Calculate 3 byte ECC code for 256/512 byte block
  23  */
  24 int nand_calculate_ecc(struct nand_chip *chip, const u_char *dat,
  25                        u_char *ecc_code);
  26 
  27 /*
  28  * Detect and correct a 1 bit error for eccsize byte block
  29  */
  30 int __nand_correct_data(u_char *dat, u_char *read_ecc, u_char *calc_ecc,
  31                         unsigned int eccsize, bool sm_order);
  32 
  33 /*
  34  * Detect and correct a 1 bit error for 256/512 byte block
  35  */
  36 int nand_correct_data(struct nand_chip *chip, u_char *dat, u_char *read_ecc,
  37                       u_char *calc_ecc);
  38 
  39 #endif /* __MTD_NAND_ECC_H__ */