include/mtd/nftl-user.h

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