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11#ifndef __MTD_NAND_BCH_H__
12#define __MTD_NAND_BCH_H__
13
14struct mtd_info;
15struct nand_bch_control;
16
17#if defined(CONFIG_MTD_NAND_ECC_BCH)
18
19static inline int mtd_nand_has_bch(void) { return 1; }
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24int nand_bch_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
25 u_char *ecc_code);
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30int nand_bch_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc,
31 u_char *calc_ecc);
32
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35struct nand_bch_control *
36nand_bch_init(struct mtd_info *mtd, unsigned int eccsize,
37 unsigned int eccbytes, struct nand_ecclayout **ecclayout);
38
39
40
41void nand_bch_free(struct nand_bch_control *nbc);
42
43#else
44
45static inline int mtd_nand_has_bch(void) { return 0; }
46
47static inline int
48nand_bch_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
49 u_char *ecc_code)
50{
51 return -1;
52}
53
54static inline int
55nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
56 unsigned char *read_ecc, unsigned char *calc_ecc)
57{
58 return -1;
59}
60
61static inline struct nand_bch_control *
62nand_bch_init(struct mtd_info *mtd, unsigned int eccsize,
63 unsigned int eccbytes, struct nand_ecclayout **ecclayout)
64{
65 return NULL;
66}
67
68static inline void nand_bch_free(struct nand_bch_control *nbc) {}
69
70#endif
71
72#endif
73