diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/mtd/mtd-abi.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/mtd/mtd-abi.h')
-rw-r--r-- | include/mtd/mtd-abi.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h new file mode 100644 index 000000000000..a76ab898f445 --- /dev/null +++ b/include/mtd/mtd-abi.h | |||
@@ -0,0 +1,103 @@ | |||
1 | /* | ||
2 | * $Id: mtd-abi.h,v 1.7 2004/11/23 15:37:32 gleixner Exp $ | ||
3 | * | ||
4 | * Portions of MTD ABI definition which are shared by kernel and user space | ||
5 | */ | ||
6 | |||
7 | #ifndef __MTD_ABI_H__ | ||
8 | #define __MTD_ABI_H__ | ||
9 | |||
10 | #ifndef __KERNEL__ /* Urgh. The whole point of splitting this out into | ||
11 | separate files was to avoid #ifdef __KERNEL__ */ | ||
12 | #define __user | ||
13 | #endif | ||
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_PEROM 5 | ||
32 | #define MTD_OTHER 14 | ||
33 | #define MTD_UNKNOWN 15 | ||
34 | |||
35 | #define MTD_CLEAR_BITS 1 // Bits can be cleared (flash) | ||
36 | #define MTD_SET_BITS 2 // Bits can be set | ||
37 | #define MTD_ERASEABLE 4 // Has an erase function | ||
38 | #define MTD_WRITEB_WRITEABLE 8 // Direct IO is possible | ||
39 | #define MTD_VOLATILE 16 // Set for RAMs | ||
40 | #define MTD_XIP 32 // eXecute-In-Place possible | ||
41 | #define MTD_OOB 64 // Out-of-band data (NAND flash) | ||
42 | #define MTD_ECC 128 // Device capable of automatic ECC | ||
43 | #define MTD_NO_VIRTBLOCKS 256 // Virtual blocks not allowed | ||
44 | |||
45 | // Some common devices / combinations of capabilities | ||
46 | #define MTD_CAP_ROM 0 | ||
47 | #define MTD_CAP_RAM (MTD_CLEAR_BITS|MTD_SET_BITS|MTD_WRITEB_WRITEABLE) | ||
48 | #define MTD_CAP_NORFLASH (MTD_CLEAR_BITS|MTD_ERASEABLE) | ||
49 | #define MTD_CAP_NANDFLASH (MTD_CLEAR_BITS|MTD_ERASEABLE|MTD_OOB) | ||
50 | #define MTD_WRITEABLE (MTD_CLEAR_BITS|MTD_SET_BITS) | ||
51 | |||
52 | |||
53 | // Types of automatic ECC/Checksum available | ||
54 | #define MTD_ECC_NONE 0 // No automatic ECC available | ||
55 | #define MTD_ECC_RS_DiskOnChip 1 // Automatic ECC on DiskOnChip | ||
56 | #define MTD_ECC_SW 2 // SW ECC for Toshiba & Samsung devices | ||
57 | |||
58 | /* ECC byte placement */ | ||
59 | #define MTD_NANDECC_OFF 0 // Switch off ECC (Not recommended) | ||
60 | #define MTD_NANDECC_PLACE 1 // Use the given placement in the structure (YAFFS1 legacy mode) | ||
61 | #define MTD_NANDECC_AUTOPLACE 2 // Use the default placement scheme | ||
62 | #define MTD_NANDECC_PLACEONLY 3 // Use the given placement in the structure (Do not store ecc result on read) | ||
63 | |||
64 | struct mtd_info_user { | ||
65 | uint8_t type; | ||
66 | uint32_t flags; | ||
67 | uint32_t size; // Total size of the MTD | ||
68 | uint32_t erasesize; | ||
69 | uint32_t oobblock; // Size of OOB blocks (e.g. 512) | ||
70 | uint32_t oobsize; // Amount of OOB data per block (e.g. 16) | ||
71 | uint32_t ecctype; | ||
72 | uint32_t eccsize; | ||
73 | }; | ||
74 | |||
75 | struct region_info_user { | ||
76 | uint32_t offset; /* At which this region starts, | ||
77 | * from the beginning of the MTD */ | ||
78 | uint32_t erasesize; /* For this region */ | ||
79 | uint32_t numblocks; /* Number of blocks in this region */ | ||
80 | uint32_t regionindex; | ||
81 | }; | ||
82 | |||
83 | #define MEMGETINFO _IOR('M', 1, struct mtd_info_user) | ||
84 | #define MEMERASE _IOW('M', 2, struct erase_info_user) | ||
85 | #define MEMWRITEOOB _IOWR('M', 3, struct mtd_oob_buf) | ||
86 | #define MEMREADOOB _IOWR('M', 4, struct mtd_oob_buf) | ||
87 | #define MEMLOCK _IOW('M', 5, struct erase_info_user) | ||
88 | #define MEMUNLOCK _IOW('M', 6, struct erase_info_user) | ||
89 | #define MEMGETREGIONCOUNT _IOR('M', 7, int) | ||
90 | #define MEMGETREGIONINFO _IOWR('M', 8, struct region_info_user) | ||
91 | #define MEMSETOOBSEL _IOW('M', 9, struct nand_oobinfo) | ||
92 | #define MEMGETOOBSEL _IOR('M', 10, struct nand_oobinfo) | ||
93 | #define MEMGETBADBLOCK _IOW('M', 11, loff_t) | ||
94 | #define MEMSETBADBLOCK _IOW('M', 12, loff_t) | ||
95 | |||
96 | struct nand_oobinfo { | ||
97 | uint32_t useecc; | ||
98 | uint32_t eccbytes; | ||
99 | uint32_t oobfree[8][2]; | ||
100 | uint32_t eccpos[32]; | ||
101 | }; | ||
102 | |||
103 | #endif /* __MTD_ABI_H__ */ | ||