| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 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__ */ |