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Commit | Line | Data |
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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 | ||
18 | struct mtd_info; | |
19 | ||
20 | /* | |
21 | * Calculate 3 byte ECC code for eccsize byte block | |
22 | */ | |
23 | void __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 | */ | |
29 | int 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 | */ | |
34 | int __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 | */ | |
40 | int 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__ */ |