include/mtd/nftl-user.h

   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__ */