1 /* device.h - Define macros and declare prototypes for device.c */ 2 /* 3 * GRUB -- GRand Unified Bootloader 4 * Copyright (C) 1999,2000,2004 Free Software Foundation, Inc. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 21 #ifndef DEVICE_MAP_HEADER 22 #define DEVICE_MAP_HEADER 1 23 24 /* The maximum number of BIOS disks. */ 25 #define NUM_DISKS 256 26 27 /* Simulated disk sizes. */ 28 #define DEFAULT_FD_CYLINDERS 80 29 #define DEFAULT_FD_HEADS 2 30 #define DEFAULT_FD_SECTORS 18 31 #define DEFAULT_HD_CYLINDERS 620 32 #define DEFAULT_HD_HEADS 128 33 #define DEFAULT_HD_SECTORS 63 34 35 /* Function prototypes. */ 36 extern void get_drive_geometry (struct geometry *geom, char **map, int drive); 37 extern int check_device (const char *device); 38 extern int init_device_map (char ***map, const char *map_file, 39 int no_floppies); 40 extern void restore_device_map (char **map); 41 42 #ifdef __linux__ 43 extern int is_disk_device (char **map, int drive); 44 extern int write_to_partition (char **map, int drive, int partition, 45 int offset, int size, const char *buf); 46 #endif /* __linux__ */ 47 48 #endif /* DEVICE_MAP_HEADER */ 49
