| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * drivers/mtd/nand_ecc.h |
| 3 | * |
| 4 | * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) |
| 5 | * |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | /* |
| Akinobu Mita | 1c63aca | 2009-10-22 16:53:32 +0900 | [diff] [blame] | 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 |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | */ |
| 27 | int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code); |
| 28 | |
| 29 | /* |
| Atsushi Nemoto | be2f092 | 2009-09-05 01:20:43 +0900 | [diff] [blame] | 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 | /* |
| Akinobu Mita | 1c63aca | 2009-10-22 16:53:32 +0900 | [diff] [blame] | 36 | * Detect and correct a 1 bit error for 256/512 byte block |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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__ */ |