1 /****************************************************************************
2  ****************************************************************************
3  ***
4  ***   This header was automatically generated from a Linux kernel header
5  ***   of the same name, to make information necessary for userspace to
6  ***   call into the kernel available to libc.  It contains only constants,
7  ***   structures, and macros generated from the original header, and thus,
8  ***   contains no copyrightable information.
9  ***
10  ****************************************************************************
11  ****************************************************************************/
12 #ifndef __MTD_MTD_H__
13 #define __MTD_MTD_H__
14 
15 #error This is a kernel header. Perhaps include mtd-user.h instead?
16 
17 #include <linux/types.h>
18 #include <linux/module.h>
19 #include <linux/uio.h>
20 #include <linux/notifier.h>
21 
22 #include <linux/mtd/compatmac.h>
23 #include <mtd/mtd-abi.h>
24 
25 #define MTD_CHAR_MAJOR 90
26 #define MTD_BLOCK_MAJOR 31
27 #define MAX_MTD_DEVICES 16
28 
29 #define MTD_ERASE_PENDING 0x01
30 #define MTD_ERASING 0x02
31 #define MTD_ERASE_SUSPEND 0x04
32 #define MTD_ERASE_DONE 0x08
33 #define MTD_ERASE_FAILED 0x10
34 
35 struct erase_info {
36  struct mtd_info *mtd;
37  u_int32_t addr;
38  u_int32_t len;
39  u_int32_t fail_addr;
40  u_long time;
41  u_long retries;
42  u_int dev;
43  u_int cell;
44  void (*callback) (struct erase_info *self);
45  u_long priv;
46  u_char state;
47  struct erase_info *next;
48 };
49 
50 struct mtd_erase_region_info {
51  u_int32_t offset;
52  u_int32_t erasesize;
53  u_int32_t numblocks;
54 };
55 
56 typedef enum {
57  MTD_OOB_PLACE,
58  MTD_OOB_AUTO,
59  MTD_OOB_RAW,
60 } mtd_oob_mode_t;
61 
62 struct mtd_oob_ops {
63  mtd_oob_mode_t mode;
64  size_t len;
65  size_t retlen;
66  size_t ooblen;
67  uint32_t ooboffs;
68  uint8_t *datbuf;
69  uint8_t *oobbuf;
70 };
71 
72 struct mtd_info {
73  u_char type;
74  u_int32_t flags;
75  u_int32_t size;
76 
77  u_int32_t erasesize;
78 
79  u_int32_t writesize;
80 
81  u_int32_t oobsize;
82  u_int32_t ecctype;
83  u_int32_t eccsize;
84 
85 #define MTD_PROGREGION_CTRLMODE_VALID(mtd) (mtd)->oobsize
86 #define MTD_PROGREGION_CTRLMODE_INVALID(mtd) (mtd)->ecctype
87 
88  char *name;
89  int index;
90 
91  struct nand_ecclayout *ecclayout;
92 
93  int numeraseregions;
94  struct mtd_erase_region_info *eraseregions;
95 
96  u_int32_t bank_size;
97 
98  int (*erase) (struct mtd_info *mtd, struct erase_info *instr);
99 
100  int (*point) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char **mtdbuf);
101 
102  void (*unpoint) (struct mtd_info *mtd, u_char * addr, loff_t from, size_t len);
103 
104  int (*read) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
105  int (*write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
106 
107  int (*read_oob) (struct mtd_info *mtd, loff_t from,
108  struct mtd_oob_ops *ops);
109  int (*write_oob) (struct mtd_info *mtd, loff_t to,
110  struct mtd_oob_ops *ops);
111 
112  int (*get_fact_prot_info) (struct mtd_info *mtd, struct otp_info *buf, size_t len);
113  int (*read_fact_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
114  int (*get_user_prot_info) (struct mtd_info *mtd, struct otp_info *buf, size_t len);
115  int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
116  int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
117  int (*lock_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len);
118 
119  int (*writev) (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen);
120 
121  void (*sync) (struct mtd_info *mtd);
122 
123  int (*lock) (struct mtd_info *mtd, loff_t ofs, size_t len);
124  int (*unlock) (struct mtd_info *mtd, loff_t ofs, size_t len);
125 
126  int (*suspend) (struct mtd_info *mtd);
127  void (*resume) (struct mtd_info *mtd);
128 
129  int (*block_isbad) (struct mtd_info *mtd, loff_t ofs);
130  int (*block_markbad) (struct mtd_info *mtd, loff_t ofs);
131 
132  struct notifier_block reboot_notifier;
133 
134  struct mtd_ecc_stats ecc_stats;
135 
136  void *priv;
137 
138  struct module *owner;
139  int usecount;
140 };
141 
142 struct mtd_notifier {
143  void (*add)(struct mtd_info *mtd);
144  void (*remove)(struct mtd_info *mtd);
145  struct list_head list;
146 };
147 
148 #define MTD_DEBUG_LEVEL0 (0)
149 #define MTD_DEBUG_LEVEL1 (1)
150 #define MTD_DEBUG_LEVEL2 (2)
151 #define MTD_DEBUG_LEVEL3 (3)
152 #define DEBUG(n, args...) do { } while(0)
153 #endif
154