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_ABI_H__
13 #define __MTD_ABI_H__
14 
15 struct erase_info_user {
16  uint32_t start;
17  uint32_t length;
18 };
19 
20 struct mtd_oob_buf {
21  uint32_t start;
22  uint32_t length;
23  unsigned char __user *ptr;
24 };
25 
26 #define MTD_ABSENT 0
27 #define MTD_RAM 1
28 #define MTD_ROM 2
29 #define MTD_NORFLASH 3
30 #define MTD_NANDFLASH 4
31 #define MTD_DATAFLASH 6
32 
33 #define MTD_WRITEABLE 0x400
34 #define MTD_BIT_WRITEABLE 0x800
35 #define MTD_NO_ERASE 0x1000
36 #define MTD_STUPID_LOCK 0x2000
37 
38 #define MTD_CAP_ROM 0
39 #define MTD_CAP_RAM (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
40 #define MTD_CAP_NORFLASH (MTD_WRITEABLE | MTD_BIT_WRITEABLE)
41 #define MTD_CAP_NANDFLASH (MTD_WRITEABLE)
42 
43 #define MTD_NANDECC_OFF 0
44 #define MTD_NANDECC_PLACE 1
45 #define MTD_NANDECC_AUTOPLACE 2
46 #define MTD_NANDECC_PLACEONLY 3
47 #define MTD_NANDECC_AUTOPL_USR 4
48 
49 #define MTD_OTP_OFF 0
50 #define MTD_OTP_FACTORY 1
51 #define MTD_OTP_USER 2
52 
53 struct mtd_info_user {
54  uint8_t type;
55  uint32_t flags;
56  uint32_t size;
57  uint32_t erasesize;
58  uint32_t writesize;
59  uint32_t oobsize;
60 
61  uint32_t ecctype;
62  uint32_t eccsize;
63 };
64 
65 struct region_info_user {
66  uint32_t offset;
67  uint32_t erasesize;
68  uint32_t numblocks;
69  uint32_t regionindex;
70 };
71 
72 struct otp_info {
73  uint32_t start;
74  uint32_t length;
75  uint32_t locked;
76 };
77 
78 #define MEMGETINFO _IOR('M', 1, struct mtd_info_user)
79 #define MEMERASE _IOW('M', 2, struct erase_info_user)
80 #define MEMWRITEOOB _IOWR('M', 3, struct mtd_oob_buf)
81 #define MEMREADOOB _IOWR('M', 4, struct mtd_oob_buf)
82 #define MEMLOCK _IOW('M', 5, struct erase_info_user)
83 #define MEMUNLOCK _IOW('M', 6, struct erase_info_user)
84 #define MEMGETREGIONCOUNT _IOR('M', 7, int)
85 #define MEMGETREGIONINFO _IOWR('M', 8, struct region_info_user)
86 #define MEMSETOOBSEL _IOW('M', 9, struct nand_oobinfo)
87 #define MEMGETOOBSEL _IOR('M', 10, struct nand_oobinfo)
88 #define MEMGETBADBLOCK _IOW('M', 11, loff_t)
89 #define MEMSETBADBLOCK _IOW('M', 12, loff_t)
90 #define OTPSELECT _IOR('M', 13, int)
91 #define OTPGETREGIONCOUNT _IOW('M', 14, int)
92 #define OTPGETREGIONINFO _IOW('M', 15, struct otp_info)
93 #define OTPLOCK _IOR('M', 16, struct otp_info)
94 #define ECCGETLAYOUT _IOR('M', 17, struct nand_ecclayout)
95 #define ECCGETSTATS _IOR('M', 18, struct mtd_ecc_stats)
96 #define MTDFILEMODE _IO('M', 19)
97 
98 struct nand_oobinfo {
99  uint32_t useecc;
100  uint32_t eccbytes;
101  uint32_t oobfree[8][2];
102  uint32_t eccpos[32];
103 };
104 
105 struct nand_oobfree {
106  uint32_t offset;
107  uint32_t length;
108 };
109 
110 #define MTD_MAX_OOBFREE_ENTRIES 8
111 
112 struct nand_ecclayout {
113  uint32_t eccbytes;
114  uint32_t eccpos[64];
115  uint32_t oobavail;
116  struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
117 };
118 
119 struct mtd_ecc_stats {
120  uint32_t corrected;
121  uint32_t failed;
122  uint32_t badblocks;
123  uint32_t bbtblocks;
124 };
125 
126 enum mtd_file_modes {
127  MTD_MODE_NORMAL = MTD_OTP_OFF,
128  MTD_MODE_OTP_FACTORY = MTD_OTP_FACTORY,
129  MTD_MODE_OTP_USER = MTD_OTP_USER,
130  MTD_MODE_RAW,
131 };
132 
133 #endif
134