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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Thomas Gleixnere4f06482005-11-07 11:15:37 +00002 * $Id: nftl-user.h,v 1.2 2005/11/07 11:14:56 gleixner Exp $
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 *
Thomas Gleixnere4f06482005-11-07 11:15:37 +00004 * Parts of NFTL headers shared with userspace
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 *
6 */
7
8#ifndef __MTD_NFTL_USER_H__
9#define __MTD_NFTL_USER_H__
10
11/* Block Control Information */
12
13struct nftl_bci {
14 unsigned char ECCSig[6];
15 uint8_t Status;
16 uint8_t Status1;
17}__attribute__((packed));
18
19/* Unit Control Information */
20
21struct nftl_uci0 {
22 uint16_t VirtUnitNum;
23 uint16_t ReplUnitNum;
24 uint16_t SpareVirtUnitNum;
25 uint16_t SpareReplUnitNum;
26} __attribute__((packed));
27
28struct nftl_uci1 {
29 uint32_t WearInfo;
30 uint16_t EraseMark;
31 uint16_t EraseMark1;
32} __attribute__((packed));
33
34struct nftl_uci2 {
35 uint16_t FoldMark;
36 uint16_t FoldMark1;
37 uint32_t unused;
38} __attribute__((packed));
39
40union nftl_uci {
41 struct nftl_uci0 a;
42 struct nftl_uci1 b;
43 struct nftl_uci2 c;
44};
45
46struct nftl_oob {
47 struct nftl_bci b;
48 union nftl_uci u;
49};
50
51/* NFTL Media Header */
52
53struct NFTLMediaHeader {
54 char DataOrgID[6];
55 uint16_t NumEraseUnits;
56 uint16_t FirstPhysicalEUN;
57 uint32_t FormattedSize;
58 unsigned char UnitSizeFactor;
59} __attribute__((packed));
60
61#define MAX_ERASE_ZONES (8192 - 512)
62
63#define ERASE_MARK 0x3c69
64#define SECTOR_FREE 0xff
65#define SECTOR_USED 0x55
66#define SECTOR_IGNORE 0x11
67#define SECTOR_DELETED 0x00
68
69#define FOLD_MARK_IN_PROGRESS 0x5555
70
71#define ZONE_GOOD 0xff
72#define ZONE_BAD_ORIGINAL 0
73#define ZONE_BAD_MARKED 7
74
75
76#endif /* __MTD_NFTL_USER_H__ */