reactos/freeldr/freeldr/disk.h
Brian Palmer 5db0abce79 Better LBA support
Correctly determines FAT type based on cluster count instead of partition id

svn path=/trunk/; revision=2528
2002-01-19 00:37:06 +00:00

60 lines
2.4 KiB
C

/*
* FreeLoader
* Copyright (C) 1998-2002 Brian Palmer <brianp@sginet.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __DISK_H
#define __DISK_H
typedef struct _GEOMETRY
{
ULONG Cylinders;
ULONG Heads;
ULONG Sectors;
ULONG BytesPerSector;
} GEOMETRY, *PGEOMETRY;
///////////////////////////////////////////////////////////////////////////////////////
//
// BIOS Disk Functions
//
///////////////////////////////////////////////////////////////////////////////////////
int biosdisk(int cmd, int drive, int head, int track, int sector, int nsects, void *buffer); // Implemented in asmcode.S
BOOL BiosInt13Read(ULONG Drive, ULONG Head, ULONG Track, ULONG Sector, ULONG SectorCount, PVOID Buffer); // Implemented in asmcode.S
BOOL BiosInt13ReadExtended(ULONG Drive, ULONG Sector, ULONG SectorCount, PVOID Buffer); // Implemented in asmcode.S
BOOL BiosInt13ExtensionsSupported(ULONG Drive);
void stop_floppy(void); // Implemented in asmcode.S
int get_heads(int drive); // Implemented in asmcode.S
int get_cylinders(int drive); // Implemented in asmcode.S
int get_sectors(int drive); // Implemented in asmcode.S
///////////////////////////////////////////////////////////////////////////////////////
//
// FreeLoader Disk Functions
//
///////////////////////////////////////////////////////////////////////////////////////
VOID DiskError(PUCHAR ErrorString);
BOOL DiskGetDriveGeometry(ULONG DriveNumber, PGEOMETRY DriveGeometry);
BOOL DiskSetDriveGeometry(ULONG DriveNumber, ULONG Cylinders, ULONG Heads, ULONG Sectors, ULONG BytesPerSector);
BOOL DiskReadMultipleLogicalSectors(ULONG DriveNumber, ULONG SectorNumber, ULONG SectorCount, PVOID Buffer);
BOOL DiskReadLogicalSector(ULONG DriveNumber, ULONG SectorNumber, PVOID Buffer);
#endif // defined __DISK_H