1
2#ifndef __DRIVERS_MTD_NAND_INGENIC_ECC_INTERNAL_H__
3#define __DRIVERS_MTD_NAND_INGENIC_ECC_INTERNAL_H__
4
5#include <linux/compiler_types.h>
6#include <linux/err.h>
7#include <linux/mutex.h>
8#include <linux/types.h>
9#include <uapi/asm-generic/errno-base.h>
10
11struct clk;
12struct device;
13struct ingenic_ecc;
14struct platform_device;
15
16
17
18
19
20
21
22struct ingenic_ecc_params {
23 int size;
24 int bytes;
25 int strength;
26};
27
28#if IS_ENABLED(CONFIG_MTD_NAND_INGENIC_ECC)
29int ingenic_ecc_calculate(struct ingenic_ecc *ecc,
30 struct ingenic_ecc_params *params,
31 const u8 *buf, u8 *ecc_code);
32int ingenic_ecc_correct(struct ingenic_ecc *ecc,
33 struct ingenic_ecc_params *params, u8 *buf,
34 u8 *ecc_code);
35
36void ingenic_ecc_release(struct ingenic_ecc *ecc);
37struct ingenic_ecc *of_ingenic_ecc_get(struct device_node *np);
38#else
39int ingenic_ecc_calculate(struct ingenic_ecc *ecc,
40 struct ingenic_ecc_params *params,
41 const u8 *buf, u8 *ecc_code)
42{
43 return -ENODEV;
44}
45
46int ingenic_ecc_correct(struct ingenic_ecc *ecc,
47 struct ingenic_ecc_params *params, u8 *buf,
48 u8 *ecc_code)
49{
50 return -ENODEV;
51}
52
53void ingenic_ecc_release(struct ingenic_ecc *ecc)
54{
55}
56
57struct ingenic_ecc *of_ingenic_ecc_get(struct device_node *np)
58{
59 return ERR_PTR(-ENODEV);
60}
61#endif
62
63struct ingenic_ecc_ops {
64 void (*disable)(struct ingenic_ecc *ecc);
65 int (*calculate)(struct ingenic_ecc *ecc,
66 struct ingenic_ecc_params *params,
67 const u8 *buf, u8 *ecc_code);
68 int (*correct)(struct ingenic_ecc *ecc,
69 struct ingenic_ecc_params *params,
70 u8 *buf, u8 *ecc_code);
71};
72
73struct ingenic_ecc {
74 struct device *dev;
75 const struct ingenic_ecc_ops *ops;
76 void __iomem *base;
77 struct clk *clk;
78 struct mutex lock;
79};
80
81int ingenic_ecc_probe(struct platform_device *pdev);
82
83#endif
84