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 #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__ */