Source code of Windows XP (NT5)
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281 lines
8.4 KiB

#define FF_CAPMASK 0x00FF
#define FF_SAVED 0x0100
#define FF_MAKESYS 0x0200
#define FF_QUICK 0x0400
#define FF_HIGHCAP 0x0800
#define FF_ONLYONE 0x1000
#define MS_720 0
#define MS_144 4
#define MS_288 6
#define SS48 2 // indexs into bpbList[] and cCluster[]
#define DS48 3
#define DS96 4
#define DS720KB 5
#define DS144M 6
#define DS288M 7
#define FAT_READ 1
#define FAT_WRITE 2
#define BOOTSECSIZE 512
/* FormatTrackHead() Error Codes */
#define DATAERROR 0x1000
#define ADDMARKNOTFOUND 0x0200
#define SECTORNOTFOUND 0x0400
#define IOCTL_FORMAT 0x42
#define IOCTL_SETFLAG 0x47
#define IOCTL_MEDIASSENSE 0x68
#define IOCTL_GET_DPB 0x60
#define IOCTL_SET_DPB 0x40
#define IOCTL_READ 0x61
#define IOCTL_WRITE 0x41
/* Media descriptor values for different floppy drives */
// NOTE: these are not all unique!
#define MEDIA_160 0xFE /* 160KB */
#define MEDIA_320 0xFF /* 320KB */
#define MEDIA_180 0xFC /* 180KB */
#define MEDIA_360 0xFD /* 360KB */
#define MEDIA_1200 0xF9 /* 1.2MB */
#define MEDIA_720 0xF9 /* 720KB */
#define MEDIA_1440 0xF0 /* 1.44M */
#define MEDIA_2880 0xF0 /* 2.88M */
#define DOS_320 0x314 /* DOS version # 3.20 */
#define DRIVEID(path) ((path[0] - 'A')&31)
/* IOCTL_Functions() error codes */
#define NOERROR 0
#define SECNOTFOUND 0x1B
#define CRCERROR 0x17
#define GENERALERROR 0x1F
/*--------------------------------------------------------------------------*/
/* BIOS Parameter Block Structure - */
/*--------------------------------------------------------------------------*/
typedef struct tagBPB
{
WORD cbSec; /* Bytes per sector */
BYTE secPerClus; /* Sectors per cluster */
WORD cSecRes; /* Reserved sectors */
BYTE cFAT; /* FATS */
WORD cDir; /* Root Directory Entries */
WORD cSec; /* Total number of sectors in image */
BYTE bMedia; /* Media descriptor */
WORD secPerFAT; /* Sectors per FAT */
WORD secPerTrack; /* Sectors per track */
WORD cHead; /* Heads */
WORD cSecHidden; /* Hidden sectors */
} BPB;
typedef BPB *PBPB;
typedef BPB FAR *LPBPB;
/*--------------------------------------------------------------------------*/
/* Drive Parameter Block Structure - */
/*--------------------------------------------------------------------------*/
typedef struct tagDPB
{
BYTE drive;
BYTE unit;
WORD sector_size;
BYTE cluster_mask;
BYTE cluster_shift;
WORD first_FAT;
BYTE FAT_count;
WORD root_entries;
WORD first_sector;
WORD max_cluster;
BYTE FAT_size;
WORD dir_sector;
LONG reserved1;
BYTE media;
BYTE first_access;
BYTE reserved2[4];
WORD next_free;
WORD free_cnt;
BYTE DOS4_Extra; /* FAT_size field is a WORD in DOS 4.X.
* To compensate for it, we have one extra byte
*/
} DPB;
typedef DPB *PDPB;
typedef DPB FAR *LPDPB;
#define MAX_SEC_PER_TRACK 40
/*--------------------------------------------------------------------------*/
/* Device Parameter Block Structure - */
/*--------------------------------------------------------------------------*/
typedef struct tagDevPB
{
CHAR SplFunctions;
CHAR devType;
CHAR reserved1[2];
INT NumCyls;
CHAR bMediaType; /* 0=>1.2MB and 1=>360KB */
BPB BPB;
CHAR reserved3[MAX_SEC_PER_TRACK * 4 + 2];
} DevPB, NEAR *PDevPB, FAR *LPDevPB;
#define TRACKLAYOUT_OFFSET (7+31) /* Offset of tracklayout
* in a Device Parameter Block */
/*--------------------------------------------------------------------------*/
/* Disk Base Table Structure - */
/*--------------------------------------------------------------------------*/
typedef struct tagDBT
{
CHAR SRHU;
CHAR HLDMA;
CHAR wait;
CHAR bytespersec;
CHAR lastsector;
CHAR gaplengthrw;
CHAR datalength;
CHAR gaplengthf;
CHAR datavalue;
CHAR HeadSettle;
CHAR MotorStart;
} DBT;
typedef DBT *PDBT;
typedef DBT FAR *LPDBT;
/*--------------------------------------------------------------------------*/
/* Directory Entry Structure - */
/*--------------------------------------------------------------------------*/
typedef struct tagDIRTYPE
{
CHAR name[11];
BYTE attr;
CHAR pad[10];
WORD time;
WORD date;
WORD first;
LONG size;
} DIRTYPE;
typedef DIRTYPE FAR *LPDIRTYPE;
/*--------------------------------------------------------------------------*/
/* MS-DOS Boot Sector Structure - */
/*--------------------------------------------------------------------------*/
typedef struct tagBOOTSEC
{
BYTE jump[3]; /* 3 byte jump */
CHAR label[8]; /* OEM name and version */
BPB BPB; /* BPB */
BYTE bootdrive; /* INT 13h indicator for boot device */
BYTE dontcare[BOOTSECSIZE-12-3-sizeof(BPB)];
BYTE phydrv;
WORD signature;
} BOOTSEC;
/*--------------------------------------------------------------------------*/
/* Disk Information Structure - */
/*--------------------------------------------------------------------------*/
typedef struct tagDISKINFO
{
WORD wDrive;
WORD wCylinderSize;
WORD wLastCylinder;
WORD wHeads;
WORD wSectorsPerTrack;
WORD wSectorSize;
} DISKINFO;
typedef DISKINFO *PDISKINFO;
typedef DISKINFO FAR *LPDISKINFO;
/*--------------------------------------------------------------------------*/
/* DOS Disk Transfer Area Structure - */
/*--------------------------------------------------------------------------*/
typedef struct tagDOSDTA
{
BYTE Reserved[21]; /* 21 */
BYTE Attrib; /* 22 */
WORD Time; /* 24 */
WORD Date; /* 26 */
DWORD Length; /* 30 */
CHAR szName[MAXDOSFILENAMELEN]; /* 43 */
CHAR dummy[1]; /* 44 */
// we do WORD move of 22 words so pad this out by 1 byte
} DOSDTA;
typedef DOSDTA *PDOSDTA;
typedef DOSDTA FAR *LPDOSDTA;
// this is the structure used to store file information in the
// directory window. these are variable length blocks. the
// first entry is a dummy that holds the number of entries in
// the whole block in the Length field. use the wSize field
// to give you a pointer to the next block
typedef struct tagMYDTA
{
WORD wSize; // size of this structure (cFileName is variable)
SHORT iBitmap;
INT nIndex;
DWORD my_dwAttrs; // must match WIN32_FIND_DATA from here down!
FILETIME my_ftCreationTime;
FILETIME my_ftLastAccessTime;
FILETIME my_ftLastWriteTime;
DWORD my_nFileSizeHigh;
DWORD my_nFileSizeLow;
CHAR my_cFileName[];
} MYDTA;
typedef MYDTA *PMYDTA;
typedef MYDTA FAR *LPMYDTA;
#define IMPORTANT_DTA_SIZE \
(sizeof(MYDTA) - \
sizeof(INT) - \
sizeof(WORD) - \
sizeof(SHORT))
#define GETDTAPTR(lpStart, offset) ((LPMYDTA)((LPSTR)lpStart + offset))
// stuff used by the search window
typedef struct tagDTASEARCH {
DWORD sch_dwAttrs; // must match WIN32_FIND_DATA
FILETIME sch_ftCreationTime;
FILETIME sch_ftLastAccessTime;
FILETIME sch_ftLastWriteTime;
DWORD sch_nFileSizeHigh;
DWORD sch_nFileSizeLow;
} DTASEARCH, FAR *LPDTASEARCH;
/*--------------------------------------------------------------------------*/
/* DOS Extended File Control Block Structure - */
/*--------------------------------------------------------------------------*/
typedef struct tagEFCB
{
BYTE Flag;
BYTE Reserve1[5];
BYTE Attrib;
BYTE Drive;
BYTE Filename[11];
BYTE Reserve2[5];
BYTE NewName[11];
BYTE Reserve3[9];
} EFCB;