projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * $Id: nftl-user.h,v 1.1 2004/05/05 14:44:57 dwmw2 Exp $ | |
| 3 | * | |
| 4 | * Parts of NFTL headers shared with userspace | |
| 5 | * | |
| 6 | */ | |
| 7 | ||
| 8 | #ifndef __MTD_NFTL_USER_H__ | |
| 9 | #define __MTD_NFTL_USER_H__ | |
| 10 | ||
| 11 | /* Block Control Information */ | |
| 12 | ||
| 13 | struct nftl_bci { | |
| 14 | unsigned char ECCSig[6]; | |
| 15 | uint8_t Status; | |
| 16 | uint8_t Status1; | |
| 17 | }__attribute__((packed)); | |
| 18 | ||
| 19 | /* Unit Control Information */ | |
| 20 | ||
| 21 | struct nftl_uci0 { | |
| 22 | uint16_t VirtUnitNum; | |
| 23 | uint16_t ReplUnitNum; | |
| 24 | uint16_t SpareVirtUnitNum; | |
| 25 | uint16_t SpareReplUnitNum; | |
| 26 | } __attribute__((packed)); | |
| 27 | ||
| 28 | struct nftl_uci1 { | |
| 29 | uint32_t WearInfo; | |
| 30 | uint16_t EraseMark; | |
| 31 | uint16_t EraseMark1; | |
| 32 | } __attribute__((packed)); | |
| 33 | ||
| 34 | struct nftl_uci2 { | |
| 35 | uint16_t FoldMark; | |
| 36 | uint16_t FoldMark1; | |
| 37 | uint32_t 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 | 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__ */ |