1 /*
2 * Parts of NFTL headers shared with userspace
3 *
4 */
5
6 #ifndef __MTD_NFTL_USER_H__
7 #define __MTD_NFTL_USER_H__
8
9 #include <linux/types.h>
10
11 /* Block Control Information */
12
13 struct nftl_bci {
14 unsigned char ECCSig[6];
15 __u8 Status;
16 __u8 Status1;
17 }__attribute__((packed));
18
19 /* Unit Control Information */
20
21 struct nftl_uci0 {
22 __u16 VirtUnitNum;
23 __u16 ReplUnitNum;
24 __u16 SpareVirtUnitNum;
25 __u16 SpareReplUnitNum;
26 } __attribute__((packed));
27
28 struct nftl_uci1 {
29 __u32 WearInfo;
30 __u16 EraseMark;
31 __u16 EraseMark1;
32 } __attribute__((packed));
33
34 struct nftl_uci2 {
35 __u16 FoldMark;
36 __u16 FoldMark1;
37 __u32 unused;
38 } __attribute__((packed));
39
40 union nftl_uci {
41 struct nftl_uci0 a;
42 struct nftl_uci1 b;
43 struct nftl_uci2 c;
44 };
45
46 struct nftl_oob {
47 struct nftl_bci b;
48 union nftl_uci u;
49 };
50
51 /* NFTL Media Header */
52
53 struct NFTLMediaHeader {
54 char DataOrgID[6];
55 __u16 NumEraseUnits;
56 __u16 FirstPhysicalEUN;
57 __u32 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__ */
77
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