freeldr/freeldr/include/drivemap.h

   1 /*
   2  *  FreeLoader
   3  *  Copyright (C) 1998-2003  Brian Palmer  <brianp@sginet.com>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19
  20 #ifndef __DRIVEMAP_H
  21 #define __DRIVEMAP_H
  22
  23
  24 typedef struct
  25 {
  26         U8              DriveMapCount;          // Count of drives currently mapped
  27
  28         U8              DriveMap[8];            // Map of BIOS drives
  29
  30 } PACKED DRIVE_MAP_LIST, *PDRIVE_MAP_LIST;
  31
  32 VOID    DriveMapMapDrivesInSection(PUCHAR SectionName);
  33 BOOL    DriveMapIsValidDriveString(PUCHAR DriveString);                 // Checks the drive string ("hd0") for validity
  34 U32             DriveMapGetBiosDriveNumber(PUCHAR DeviceName);                  // Returns a BIOS drive number for any given device name (e.g. 0x80 for 'hd0')
  35 VOID    DriveMapInstallInt13Handler(PDRIVE_MAP_LIST DriveMap);  // Installs the int 13h handler for the drive mapper
  36 VOID    DriveMapRemoveInt13Handler(VOID);                                               // Removes a previously installed int 13h drive map handler
  37
  38 extern PVOID                    DriveMapInt13HandlerStart;
  39 extern PVOID                    DriveMapInt13HandlerEnd;
  40 extern U32                              DriveMapOldInt13HandlerAddress;
  41 extern DRIVE_MAP_LIST   DriveMapInt13HandlerMapList;
  42
  43 #endif // #defined __DRIVEMAP_H