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  ***   To edit the content of this header, modify the corresponding
11  ***   source file (e.g. under external/kernel-headers/original/) then
12  ***   run bionic/libc/kernel/tools/update_all.py
13  ***
14  ***   Any manual change here will be lost the next time this script will
15  ***   be run. You've been warned!
16  ***
17  ****************************************************************************
18  ****************************************************************************/
19 #ifndef __MTD_ABI_H__
20 #define __MTD_ABI_H__
21 #include <linux/types.h>
22 struct erase_info_user {
23   __u32 start;
24   __u32 length;
25 };
26 struct erase_info_user64 {
27   __u64 start;
28   __u64 length;
29 };
30 struct mtd_oob_buf {
31   __u32 start;
32   __u32 length;
33   unsigned char __user * ptr;
34 };
35 struct mtd_oob_buf64 {
36   __u64 start;
37   __u32 pad;
38   __u32 length;
39   __u64 usr_ptr;
40 };
41 enum {
42   MTD_OPS_PLACE_OOB = 0,
43   MTD_OPS_AUTO_OOB = 1,
44   MTD_OPS_RAW = 2,
45 };
46 struct mtd_write_req {
47   __u64 start;
48   __u64 len;
49   __u64 ooblen;
50   __u64 usr_data;
51   __u64 usr_oob;
52   __u8 mode;
53   __u8 padding[7];
54 };
55 #define MTD_ABSENT 0
56 #define MTD_RAM 1
57 #define MTD_ROM 2
58 #define MTD_NORFLASH 3
59 #define MTD_NANDFLASH 4
60 #define MTD_DATAFLASH 6
61 #define MTD_UBIVOLUME 7
62 #define MTD_MLCNANDFLASH 8
63 #define MTD_WRITEABLE 0x400
64 #define MTD_BIT_WRITEABLE 0x800
65 #define MTD_NO_ERASE 0x1000
66 #define MTD_POWERUP_LOCK 0x2000
67 #define MTD_CAP_ROM 0
68 #define MTD_CAP_RAM (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
69 #define MTD_CAP_NORFLASH (MTD_WRITEABLE | MTD_BIT_WRITEABLE)
70 #define MTD_CAP_NANDFLASH (MTD_WRITEABLE)
71 #define MTD_CAP_NVRAM (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
72 #define MTD_NANDECC_OFF 0
73 #define MTD_NANDECC_PLACE 1
74 #define MTD_NANDECC_AUTOPLACE 2
75 #define MTD_NANDECC_PLACEONLY 3
76 #define MTD_NANDECC_AUTOPL_USR 4
77 #define MTD_OTP_OFF 0
78 #define MTD_OTP_FACTORY 1
79 #define MTD_OTP_USER 2
80 struct mtd_info_user {
81   __u8 type;
82   __u32 flags;
83   __u32 size;
84   __u32 erasesize;
85   __u32 writesize;
86   __u32 oobsize;
87   __u64 padding;
88 };
89 struct region_info_user {
90   __u32 offset;
91   __u32 erasesize;
92   __u32 numblocks;
93   __u32 regionindex;
94 };
95 struct otp_info {
96   __u32 start;
97   __u32 length;
98   __u32 locked;
99 };
100 #define MEMGETINFO _IOR('M', 1, struct mtd_info_user)
101 #define MEMERASE _IOW('M', 2, struct erase_info_user)
102 #define MEMWRITEOOB _IOWR('M', 3, struct mtd_oob_buf)
103 #define MEMREADOOB _IOWR('M', 4, struct mtd_oob_buf)
104 #define MEMLOCK _IOW('M', 5, struct erase_info_user)
105 #define MEMUNLOCK _IOW('M', 6, struct erase_info_user)
106 #define MEMGETREGIONCOUNT _IOR('M', 7, int)
107 #define MEMGETREGIONINFO _IOWR('M', 8, struct region_info_user)
108 #define MEMGETOOBSEL _IOR('M', 10, struct nand_oobinfo)
109 #define MEMGETBADBLOCK _IOW('M', 11, __kernel_loff_t)
110 #define MEMSETBADBLOCK _IOW('M', 12, __kernel_loff_t)
111 #define OTPSELECT _IOR('M', 13, int)
112 #define OTPGETREGIONCOUNT _IOW('M', 14, int)
113 #define OTPGETREGIONINFO _IOW('M', 15, struct otp_info)
114 #define OTPLOCK _IOR('M', 16, struct otp_info)
115 #define ECCGETLAYOUT _IOR('M', 17, struct nand_ecclayout_user)
116 #define ECCGETSTATS _IOR('M', 18, struct mtd_ecc_stats)
117 #define MTDFILEMODE _IO('M', 19)
118 #define MEMERASE64 _IOW('M', 20, struct erase_info_user64)
119 #define MEMWRITEOOB64 _IOWR('M', 21, struct mtd_oob_buf64)
120 #define MEMREADOOB64 _IOWR('M', 22, struct mtd_oob_buf64)
121 #define MEMISLOCKED _IOR('M', 23, struct erase_info_user)
122 #define MEMWRITE _IOWR('M', 24, struct mtd_write_req)
123 struct nand_oobinfo {
124   __u32 useecc;
125   __u32 eccbytes;
126   __u32 oobfree[8][2];
127   __u32 eccpos[32];
128 };
129 struct nand_oobfree {
130   __u32 offset;
131   __u32 length;
132 };
133 #define MTD_MAX_OOBFREE_ENTRIES 8
134 #define MTD_MAX_ECCPOS_ENTRIES 64
135 struct nand_ecclayout_user {
136   __u32 eccbytes;
137   __u32 eccpos[MTD_MAX_ECCPOS_ENTRIES];
138   __u32 oobavail;
139   struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
140 };
141 struct mtd_ecc_stats {
142   __u32 corrected;
143   __u32 failed;
144   __u32 badblocks;
145   __u32 bbtblocks;
146 };
147 enum mtd_file_modes {
148   MTD_FILE_MODE_NORMAL = MTD_OTP_OFF,
149   MTD_FILE_MODE_OTP_FACTORY = MTD_OTP_FACTORY,
150   MTD_FILE_MODE_OTP_USER = MTD_OTP_USER,
151   MTD_FILE_MODE_RAW,
152 };
153 #endif
154