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.  */
36extern void get_drive_geometry (struct geometry *geom, char **map, int drive);
37extern int check_device (const char *device);
38extern int init_device_map (char ***map, const char *map_file,
39			    int no_floppies);
40extern void restore_device_map (char **map);
41
42#ifdef __linux__
43extern int is_disk_device (char **map, int drive);
44extern 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