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ae02ab00 AS |
1 | /* |
2 | * JZ4780 BCH controller | |
3 | * | |
4 | * Copyright (c) 2015 Imagination Technologies | |
5 | * Author: Alex Smith <alex.smith@imgtec.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License version 2 as published | |
9 | * by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #ifndef __DRIVERS_MTD_NAND_JZ4780_BCH_H__ | |
13 | #define __DRIVERS_MTD_NAND_JZ4780_BCH_H__ | |
14 | ||
15 | #include <linux/types.h> | |
16 | ||
17 | struct device; | |
18 | struct device_node; | |
19 | struct jz4780_bch; | |
20 | ||
21 | /** | |
22 | * struct jz4780_bch_params - BCH parameters | |
23 | * @size: data bytes per ECC step. | |
24 | * @bytes: ECC bytes per step. | |
25 | * @strength: number of correctable bits per ECC step. | |
26 | */ | |
27 | struct jz4780_bch_params { | |
28 | int size; | |
29 | int bytes; | |
30 | int strength; | |
31 | }; | |
32 | ||
33 | int jz4780_bch_calculate(struct jz4780_bch *bch, | |
34 | struct jz4780_bch_params *params, | |
35 | const u8 *buf, u8 *ecc_code); | |
36 | int jz4780_bch_correct(struct jz4780_bch *bch, | |
37 | struct jz4780_bch_params *params, u8 *buf, | |
38 | u8 *ecc_code); | |
39 | ||
40 | void jz4780_bch_release(struct jz4780_bch *bch); | |
41 | struct jz4780_bch *of_jz4780_bch_get(struct device_node *np); | |
42 | ||
43 | #endif /* __DRIVERS_MTD_NAND_JZ4780_BCH_H__ */ |