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Diff for /src/sys/fs/msdosfs/bpb.h between version 1.7 and 1.8

version 1.7, 2012/11/04 17:57:59 version 1.8, 2016/01/22 22:53:36
Line 23 
Line 23 
  * BIOS Parameter Block (BPB) for DOS 3.3   * BIOS Parameter Block (BPB) for DOS 3.3
  */   */
 struct bpb33 {  struct bpb33 {
         u_int16_t       bpbBytesPerSec; /* bytes per sector */          uint16_t        bpbBytesPerSec; /* bytes per sector */
         u_int8_t        bpbSecPerClust; /* sectors per cluster */          uint8_t         bpbSecPerClust; /* sectors per cluster */
         u_int16_t       bpbResSectors;  /* number of reserved sectors */          uint16_t        bpbResSectors;  /* number of reserved sectors */
         u_int8_t        bpbFATs;        /* number of FATs */          uint8_t         bpbFATs;        /* number of FATs */
         u_int16_t       bpbRootDirEnts; /* number of root directory entries */          uint16_t        bpbRootDirEnts; /* number of root directory entries */
         u_int16_t       bpbSectors;     /* total number of sectors */          uint16_t        bpbSectors;     /* total number of sectors */
         u_int8_t        bpbMedia;       /* media descriptor */          uint8_t         bpbMedia;       /* media descriptor */
         u_int16_t       bpbFATsecs;     /* number of sectors per FAT */          uint16_t        bpbFATsecs;     /* number of sectors per FAT */
         u_int16_t       bpbSecPerTrack; /* sectors per track */          uint16_t        bpbSecPerTrack; /* sectors per track */
         u_int16_t       bpbHeads;       /* number of heads */          uint16_t        bpbHeads;       /* number of heads */
         u_int16_t       bpbHiddenSecs;  /* number of hidden sectors */          uint16_t        bpbHiddenSecs;  /* number of hidden sectors */
 };  };
   
 /*  /*
Line 41  struct bpb33 {
Line 41  struct bpb33 {
  * and bpbHugeSectors is not in the 3.3 bpb.   * and bpbHugeSectors is not in the 3.3 bpb.
  */   */
 struct bpb50 {  struct bpb50 {
         u_int16_t       bpbBytesPerSec; /* bytes per sector */          uint16_t        bpbBytesPerSec; /* bytes per sector */
         u_int8_t        bpbSecPerClust; /* sectors per cluster */          uint8_t         bpbSecPerClust; /* sectors per cluster */
         u_int16_t       bpbResSectors;  /* number of reserved sectors */          uint16_t        bpbResSectors;  /* number of reserved sectors */
         u_int8_t        bpbFATs;        /* number of FATs */          uint8_t         bpbFATs;        /* number of FATs */
         u_int16_t       bpbRootDirEnts; /* number of root directory entries */          uint16_t        bpbRootDirEnts; /* number of root directory entries */
         u_int16_t       bpbSectors;     /* total number of sectors */          uint16_t        bpbSectors;     /* total number of sectors */
         u_int8_t        bpbMedia;       /* media descriptor */          uint8_t         bpbMedia;       /* media descriptor */
         u_int16_t       bpbFATsecs;     /* number of sectors per FAT */          uint16_t        bpbFATsecs;     /* number of sectors per FAT */
         u_int16_t       bpbSecPerTrack; /* sectors per track */          uint16_t        bpbSecPerTrack; /* sectors per track */
         u_int16_t       bpbHeads;       /* number of heads */          uint16_t        bpbHeads;       /* number of heads */
         u_int32_t       bpbHiddenSecs;  /* # of hidden sectors */          uint32_t        bpbHiddenSecs;  /* # of hidden sectors */
         u_int32_t       bpbHugeSectors; /* # of sectors if bpbSectors == 0 */          uint32_t        bpbHugeSectors; /* # of sectors if bpbSectors == 0 */
 };  };
   
 /*  /*
  * BPB for DOS 7.10 (FAT32).  This one has a few extensions to bpb50.   * BPB for DOS 7.10 (FAT32).  This one has a few extensions to bpb50.
  */   */
 struct bpb710 {  struct bpb710 {
         u_int16_t       bpbBytesPerSec; /* bytes per sector */          uint16_t        bpbBytesPerSec; /* bytes per sector */
         u_int8_t        bpbSecPerClust; /* sectors per cluster */          uint8_t         bpbSecPerClust; /* sectors per cluster */
         u_int16_t       bpbResSectors;  /* number of reserved sectors */          uint16_t        bpbResSectors;  /* number of reserved sectors */
         u_int8_t        bpbFATs;        /* number of FATs */          uint8_t         bpbFATs;        /* number of FATs */
         u_int16_t       bpbRootDirEnts; /* number of root directory entries */          uint16_t        bpbRootDirEnts; /* number of root directory entries */
         u_int16_t       bpbSectors;     /* total number of sectors */          uint16_t        bpbSectors;     /* total number of sectors */
         u_int8_t        bpbMedia;       /* media descriptor */          uint8_t         bpbMedia;       /* media descriptor */
         u_int16_t       bpbFATsecs;     /* number of sectors per FAT */          uint16_t        bpbFATsecs;     /* number of sectors per FAT */
         u_int16_t       bpbSecPerTrack; /* sectors per track */          uint16_t        bpbSecPerTrack; /* sectors per track */
         u_int16_t       bpbHeads;       /* number of heads */          uint16_t        bpbHeads;       /* number of heads */
         u_int32_t       bpbHiddenSecs;  /* # of hidden sectors */          uint32_t        bpbHiddenSecs;  /* # of hidden sectors */
         u_int32_t       bpbHugeSectors; /* # of sectors if bpbSectors == 0 */          uint32_t        bpbHugeSectors; /* # of sectors if bpbSectors == 0 */
         u_int32_t       bpbBigFATsecs;  /* like bpbFATsecs for FAT32 */          uint32_t        bpbBigFATsecs;  /* like bpbFATsecs for FAT32 */
         u_int16_t       bpbExtFlags;    /* extended flags: */          uint16_t        bpbExtFlags;    /* extended flags: */
 #define FATNUM          0xf             /* mask for numbering active FAT */  #define FATNUM          0xf             /* mask for numbering active FAT */
 #define FATMIRROR       0x80            /* FAT is mirrored (like it always was) */  #define FATMIRROR       0x80            /* FAT is mirrored (like it always was) */
         u_int16_t       bpbFSVers;      /* filesystem version */          uint16_t        bpbFSVers;      /* filesystem version */
 #define FSVERS          0               /* currently only 0 is understood */  #define FSVERS          0               /* currently only 0 is understood */
         u_int32_t       bpbRootClust;   /* start cluster for root directory */          uint32_t        bpbRootClust;   /* start cluster for root directory */
         u_int16_t       bpbFSInfo;      /* filesystem info structure sector */          uint16_t        bpbFSInfo;      /* filesystem info structure sector */
         u_int16_t       bpbBackup;      /* backup boot sector */          uint16_t        bpbBackup;      /* backup boot sector */
         u_int8_t        bpbReserved[12]; /* Reserved for future expansion */          uint8_t         bpbReserved[12]; /* Reserved for future expansion */
 };  };
   
 #ifdef  atari  #ifdef  atari
Line 90  struct bpb710 {
Line 90  struct bpb710 {
  */   */
 #if 0  #if 0
 struct bpb_a {  struct bpb_a {
         u_int16_t       bpbBytesPerSec; /* bytes per sector             */          uint16_t        bpbBytesPerSec; /* bytes per sector             */
         u_int8_t        bpbSecPerClust; /* sectors per cluster          */          uint8_t         bpbSecPerClust; /* sectors per cluster          */
         u_int16_t       bpbResSectors;  /* number of reserved sectors   */          uint16_t        bpbResSectors;  /* number of reserved sectors   */
         u_int8_t        bpbFATs;        /* number of FATs               */          uint8_t         bpbFATs;        /* number of FATs               */
         u_int16_t       bpbRootDirEnts; /* number of root directory entries */          uint16_t        bpbRootDirEnts; /* number of root directory entries */
         u_int16_t       bpbSectors;     /* total number of sectors      */          uint16_t        bpbSectors;     /* total number of sectors      */
         u_int8_t        bpbUseless1;    /* meaningless on GEMDOS FS     */          uint8_t         bpbUseless1;    /* meaningless on GEMDOS FS     */
         u_int16_t       bpbFATsecs;     /* number of sectors per FAT    */          uint16_t        bpbFATsecs;     /* number of sectors per FAT    */
         u_int16_t       bpbUseless2;    /* meaningless for harddisk fs  */          uint16_t        bpbUseless2;    /* meaningless for harddisk fs  */
         u_int16_t       bpbUseless3;    /* meaningless for harddisk fs  */          uint16_t        bpbUseless3;    /* meaningless for harddisk fs  */
         u_int16_t       bpbHiddenSecs;  /* the TOS-BIOS ignores this    */          uint16_t        bpbHiddenSecs;  /* the TOS-BIOS ignores this    */
 };  };
 #endif  #endif
 #endif  /* atari */  #endif  /* atari */
Line 159  struct byte_bpb50 {
Line 159  struct byte_bpb50 {
  * BPB for DOS 7.10 (FAT32).  This one has a few extensions to bpb50.   * BPB for DOS 7.10 (FAT32).  This one has a few extensions to bpb50.
  */   */
 struct byte_bpb710 {  struct byte_bpb710 {
         u_int8_t bpbBytesPerSec[2];     /* bytes per sector */          uint8_t bpbBytesPerSec[2];      /* bytes per sector */
         u_int8_t bpbSecPerClust;        /* sectors per cluster */          uint8_t bpbSecPerClust;         /* sectors per cluster */
         u_int8_t bpbResSectors[2];      /* number of reserved sectors */          uint8_t bpbResSectors[2];       /* number of reserved sectors */
         u_int8_t bpbFATs;               /* number of FATs */          uint8_t bpbFATs;                /* number of FATs */
         u_int8_t bpbRootDirEnts[2];     /* number of root directory entries */          uint8_t bpbRootDirEnts[2];      /* number of root directory entries */
         u_int8_t bpbSectors[2];         /* total number of sectors */          uint8_t bpbSectors[2];          /* total number of sectors */
         u_int8_t bpbMedia;              /* media descriptor */          uint8_t bpbMedia;               /* media descriptor */
         u_int8_t bpbFATsecs[2];         /* number of sectors per FAT */          uint8_t bpbFATsecs[2];          /* number of sectors per FAT */
         u_int8_t bpbSecPerTrack[2];     /* sectors per track */          uint8_t bpbSecPerTrack[2];      /* sectors per track */
         u_int8_t bpbHeads[2];           /* number of heads */          uint8_t bpbHeads[2];            /* number of heads */
         u_int8_t bpbHiddenSecs[4];      /* # of hidden sectors */          uint8_t bpbHiddenSecs[4];       /* # of hidden sectors */
         u_int8_t bpbHugeSectors[4];     /* # of sectors if bpbSectors == 0 */          uint8_t bpbHugeSectors[4];      /* # of sectors if bpbSectors == 0 */
         u_int8_t bpbBigFATsecs[4];      /* like bpbFATsecs for FAT32 */          uint8_t bpbBigFATsecs[4];       /* like bpbFATsecs for FAT32 */
         u_int8_t bpbExtFlags[2];        /* extended flags: */          uint8_t bpbExtFlags[2];         /* extended flags: */
         u_int8_t bpbFSVers[2];          /* filesystem version */          uint8_t bpbFSVers[2];           /* filesystem version */
         u_int8_t bpbRootClust[4];       /* start cluster for root directory */          uint8_t bpbRootClust[4];        /* start cluster for root directory */
         u_int8_t bpbFSInfo[2];          /* filesystem info structure sector */          uint8_t bpbFSInfo[2];           /* filesystem info structure sector */
         u_int8_t bpbBackup[2];          /* backup boot sector */          uint8_t bpbBackup[2];           /* backup boot sector */
         u_int8_t bpbReserved[12];       /* Reserved for future expansion */          uint8_t bpbReserved[12];        /* Reserved for future expansion */
 };  };
   
 /*  /*
  * FAT32 FSInfo block.   * FAT32 FSInfo block.
  */   */
 struct fsinfo {  struct fsinfo {
         u_int8_t fsisig1[4];          uint8_t fsisig1[4];
         u_int8_t fsifill1[480];          uint8_t fsifill1[480];
         u_int8_t fsisig2[4];          uint8_t fsisig2[4];
         u_int8_t fsinfree[4];          uint8_t fsinfree[4];
         u_int8_t fsinxtfree[4];          uint8_t fsinxtfree[4];
         u_int8_t fsifill2[12];          uint8_t fsifill2[12];
         u_int8_t fsisig3[4];          uint8_t fsisig3[4];
         u_int8_t fsifill3[508];          uint8_t fsifill3[508];
         u_int8_t fsisig4[4];          uint8_t fsisig4[4];
 };  };
 #endif /* _MSDOSFS_BPB_H_ */  #endif /* _MSDOSFS_BPB_H_ */
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