e597bb20d4
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1457 6ac86273-5f31-0410-b378-82cca8765d1b
84 lines
3.4 KiB
C
84 lines
3.4 KiB
C
/****************************************************************/
|
|
/* */
|
|
/* xstructs.h */
|
|
/* */
|
|
/* Extended DOS 7.0+ structures */
|
|
/* */
|
|
/****************************************************************/
|
|
|
|
#ifdef MAIN
|
|
#ifdef VERSION_STRINGS
|
|
static BYTE *XStructs_hRcsId =
|
|
"$Id$";
|
|
#endif
|
|
#endif
|
|
|
|
struct xdpbdata {
|
|
UWORD xdd_dpbsize;
|
|
struct dpb xdd_dpb;
|
|
};
|
|
|
|
struct xfreespace {
|
|
UWORD xfs_datasize; /* size of this structure */
|
|
union {
|
|
UWORD requested; /* requested structure version */
|
|
UWORD actual; /* actual structure version */
|
|
} xfs_version;
|
|
ULONG xfs_clussize; /* number of sectors per cluster */
|
|
ULONG xfs_secsize; /* number of bytes per sector */
|
|
ULONG xfs_freeclusters; /* number of available clusters */
|
|
ULONG xfs_totalclusters; /* total number of clusters on the drive */
|
|
ULONG xfs_freesectors; /* number of physical sectors available */
|
|
ULONG xfs_totalsectors; /* total number of physical sectors */
|
|
ULONG xfs_freeunits; /* number of available allocation units */
|
|
ULONG xfs_totalunits; /* total allocation units */
|
|
UBYTE xfs_reserved[8];
|
|
};
|
|
|
|
struct xdpbforformat {
|
|
UWORD xdff_datasize; /* size of this structure */
|
|
union {
|
|
UWORD requested; /* requested structure version */
|
|
UWORD actual; /* actual structure version */
|
|
} xdff_version;
|
|
UDWORD xdff_function; /* function number:
|
|
00h invalidate DPB counts
|
|
01h rebuild DPB from BPB
|
|
02h force media change
|
|
03h get/set active FAT number and mirroring
|
|
04h get/set root directory cluster number
|
|
*/
|
|
union {
|
|
struct {
|
|
DWORD nfreeclst; /* # free clusters
|
|
(-1 - unknown, 0 - don't change) */
|
|
DWORD cluster; /* cluster # of first free
|
|
(-1 - unknown, 0 - don't change) */
|
|
UDWORD reserved[2];
|
|
} setdpbcounts;
|
|
|
|
struct {
|
|
UDWORD unknown;
|
|
bpb FAR *bpbp;
|
|
UDWORD reserved[2];
|
|
} rebuilddpb;
|
|
|
|
struct {
|
|
DWORD new; /* new active FAT/mirroring state, or -1 to get
|
|
bits 3-0: the 0-based FAT number of the active FAT
|
|
bits 6-4: reserved (0)
|
|
bit 7: do not mirror active FAT to inactive FATs
|
|
or:
|
|
set new root directory cluster, -1 - get current
|
|
*/
|
|
DWORD old; /* previous active FAT/mirroring state (as above)
|
|
or
|
|
get previous root directory cluster
|
|
*/
|
|
UDWORD reserved[2];
|
|
} setget;
|
|
} xdff_f;
|
|
};
|
|
|
|
COUNT DosGetExtFree(BYTE FAR * DriveString, struct xfreespace FAR * xfsp);
|