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* include/cygwin/fs.h: New file.

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* include/cygwin/hdreg.h: New file.
	* fhandler_floppy.cc (fhandler_floppy::ioctl): Add implementation for
	HDIO_GETGEO, BLKGETSIZE, BLKGETSIZE64, BLKRRPART and BLKSSZGET ioctls.
This commit is contained in:
Corinna Vinschen
2002-11-07 14:16:29 +00:00
parent 963fb8837d
commit cad2c685b4
4 changed files with 175 additions and 1 deletions
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123
winsup/cygwin/fhandler_floppy.cc
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@@ -14,6 +14,9 @@ details. */
#include <errno.h>
#include <unistd.h>
#include <winioctl.h>
#include <asm/socket.h>
#include <cygwin/hdreg.h>
#include <cygwin/fs.h>
#include "security.h"
#include "fhandler.h"
#include "cygerrno.h"
@@ -186,6 +189,124 @@ fhandler_dev_floppy::lseek (__off64_t offset, int whence)
int
fhandler_dev_floppy::ioctl (unsigned int cmd, void *buf)
{
return fhandler_dev_raw::ioctl (cmd, buf);
DISK_GEOMETRY di;
PARTITION_INFORMATION pi;
DWORD bytes_read;
__off64_t drive_size = 0;
__off64_t start = 0;
switch (cmd)
{
case HDIO_GETGEO:
{
debug_printf ("HDIO_GETGEO");
if (!DeviceIoControl (get_handle (),
IOCTL_DISK_GET_DRIVE_GEOMETRY,
NULL, 0,
&di, sizeof (di),
&bytes_read, NULL))
{
__seterrno ();
return -1;
}
debug_printf ("disk geometry: (%ld cyl)*(%ld trk)*(%ld sec)*(%ld bps)",
di.Cylinders.LowPart,
di.TracksPerCylinder,
di.SectorsPerTrack,
di.BytesPerSector);
if (DeviceIoControl (get_handle (),
IOCTL_DISK_GET_PARTITION_INFO,
NULL, 0,
&pi, sizeof (pi),
&bytes_read, NULL))
{
debug_printf ("partition info: %ld (%ld)",
pi.StartingOffset.LowPart,
pi.PartitionLength.LowPart);
start = pi.StartingOffset.QuadPart >> 9ULL;
}
struct hd_geometry *geo = (struct hd_geometry *) buf;
geo->heads = di.TracksPerCylinder;
geo->sectors = di.SectorsPerTrack;
geo->cylinders = di.Cylinders.LowPart;
geo->start = start;
return 0;
}
case BLKGETSIZE:
case BLKGETSIZE64:
{
debug_printf ("BLKGETSIZE");
if (!DeviceIoControl (get_handle (),
IOCTL_DISK_GET_DRIVE_GEOMETRY,
NULL, 0,
&di, sizeof (di),
&bytes_read, NULL))
{
__seterrno ();
return -1;
}
debug_printf ("disk geometry: (%ld cyl)*(%ld trk)*(%ld sec)*(%ld bps)",
di.Cylinders.LowPart,
di.TracksPerCylinder,
di.SectorsPerTrack,
di.BytesPerSector);
if (DeviceIoControl (get_handle (),
IOCTL_DISK_GET_PARTITION_INFO,
NULL, 0,
&pi, sizeof (pi),
&bytes_read, NULL))
{
debug_printf ("partition info: %ld (%ld)",
pi.StartingOffset.LowPart,
pi.PartitionLength.LowPart);
drive_size = pi.PartitionLength.QuadPart;
}
else
{
drive_size = di.Cylinders.QuadPart * di.TracksPerCylinder *
di.SectorsPerTrack * di.BytesPerSector;
}
if (cmd == BLKGETSIZE)
*(long *)buf = drive_size >> 9UL;
else
*(__off64_t *)buf = drive_size;
return 0;
}
case BLKRRPART:
{
debug_printf ("BLKRRPART");
if (!DeviceIoControl (get_handle (),
IOCTL_DISK_UPDATE_DRIVE_SIZE,
NULL, 0,
&di, sizeof (di),
&bytes_read, NULL))
{
__seterrno ();
return -1;
}
return 0;
}
case BLKSSZGET:
{
debug_printf ("BLKSSZGET");
if (!DeviceIoControl (get_handle (),
IOCTL_DISK_GET_DRIVE_GEOMETRY,
NULL, 0,
&di, sizeof (di),
&bytes_read, NULL))
{
__seterrno ();
return -1;
}
debug_printf ("disk geometry: (%ld cyl)*(%ld trk)*(%ld sec)*(%ld bps)",
di.Cylinders.LowPart,
di.TracksPerCylinder,
di.SectorsPerTrack,
di.BytesPerSector);
*(int *)buf = di.BytesPerSector;
return 0;
}
default:
return fhandler_dev_raw::ioctl (cmd, buf);
}
}