1 /* SPDX-License-Identifier: GPL-2.0-only */ 1
2 /*
3 * Copyright (C) 2000-2010 Steven J. Hill <sj
4 * David Woodhouse <d
5 * Thomas Gleixner <t
6 *
7 * This file is the header for the NAND Hammin
8 */
9
10 #ifndef __MTD_NAND_ECC_SW_HAMMING_H__
11 #define __MTD_NAND_ECC_SW_HAMMING_H__
12
13 #include <linux/mtd/nand.h>
14
15 /**
16 * struct nand_ecc_sw_hamming_conf - private s
17 * @req_ctx: Save request context and tweak th
18 * engine needs
19 * @code_size: Number of bytes needed to store
20 * @calc_buf: Buffer to use when calculating E
21 * @code_buf: Buffer to use when reading (raw)
22 * @sm_order: Smart Media special ordering
23 */
24 struct nand_ecc_sw_hamming_conf {
25 struct nand_ecc_req_tweak_ctx req_ctx;
26 unsigned int code_size;
27 u8 *calc_buf;
28 u8 *code_buf;
29 unsigned int sm_order;
30 };
31
32 #if IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING)
33
34 int nand_ecc_sw_hamming_init_ctx(struct nand_d
35 void nand_ecc_sw_hamming_cleanup_ctx(struct na
36 int ecc_sw_hamming_calculate(const unsigned ch
37 unsigned char *co
38 int nand_ecc_sw_hamming_calculate(struct nand_
39 const unsign
40 unsigned cha
41 int ecc_sw_hamming_correct(unsigned char *buf,
42 unsigned char *calc
43 bool sm_order);
44 int nand_ecc_sw_hamming_correct(struct nand_de
45 unsigned char
46 unsigned char
47
48 #else /* !CONFIG_MTD_NAND_ECC_SW_HAMMING */
49
50 static inline int nand_ecc_sw_hamming_init_ctx
51 {
52 return -ENOTSUPP;
53 }
54
55 static inline void nand_ecc_sw_hamming_cleanup
56
57 static inline int ecc_sw_hamming_calculate(con
58 uns
59 uns
60 {
61 return -ENOTSUPP;
62 }
63
64 static inline int nand_ecc_sw_hamming_calculat
65
66
67 {
68 return -ENOTSUPP;
69 }
70
71 static inline int ecc_sw_hamming_correct(unsig
72 unsig
73 unsig
74 unsig
75 {
76 return -ENOTSUPP;
77 }
78
79 static inline int nand_ecc_sw_hamming_correct(
80
81
82
83 {
84 return -ENOTSUPP;
85 }
86
87 #endif /* CONFIG_MTD_NAND_ECC_SW_HAMMING */
88
89 #endif /* __MTD_NAND_ECC_SW_HAMMING_H__ */
90
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.