/* biosdisk.h - emulate biosdisk */
/*
 *  VAS_EBOOT  --  GRand Unified Bootloader
 *  Copyright (C) 2002,2007  Free Software Foundation, Inc.
 *
 *  VAS_EBOOT 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 3 of the License, or
 *  (at your option) any later version.
 *
 *  VAS_EBOOT 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 VAS_EBOOT.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef VAS_EBOOT_BIOSDISK_MACHINE_UTIL_HEADER
#define VAS_EBOOT_BIOSDISK_MACHINE_UTIL_HEADER	1

#include <VasEBoot/disk.h>
#include <VasEBoot/partition.h>
#include <sys/types.h>
#include <VasEBoot/emu/hostfile.h>

VasEBoot_util_fd_t
VasEBoot_util_fd_open_device (const VasEBoot_disk_t disk, VasEBoot_disk_addr_t sector, int flags,
			  VasEBoot_disk_addr_t *max);

void VasEBoot_util_biosdisk_init (const char *dev_map);
void VasEBoot_util_biosdisk_fini (void);
char *VasEBoot_util_biosdisk_get_VasEBoot_dev (const char *os_dev);
const char *VasEBoot_util_biosdisk_get_osdev (VasEBoot_disk_t disk);
int VasEBoot_util_biosdisk_is_present (const char *name);
int VasEBoot_util_biosdisk_is_floppy (VasEBoot_disk_t disk);
const char *
VasEBoot_util_biosdisk_get_compatibility_hint (VasEBoot_disk_t disk);
VasEBoot_err_t VasEBoot_util_biosdisk_flush (struct VasEBoot_disk *disk);
VasEBoot_err_t
VasEBoot_cryptodisk_cheat_mount (const char *sourcedev, const char *cheat);
const char *
VasEBoot_util_cryptodisk_get_uuid (VasEBoot_disk_t disk);
char *
VasEBoot_util_get_ldm (VasEBoot_disk_t disk, VasEBoot_disk_addr_t start);
int
VasEBoot_util_is_ldm (VasEBoot_disk_t disk);
#ifdef VAS_EBOOT_UTIL
VasEBoot_err_t
VasEBoot_util_ldm_embed (struct VasEBoot_disk *disk, unsigned int *nsectors,
		     unsigned int max_nsectors,
		     VasEBoot_embed_type_t embed_type,
		     VasEBoot_disk_addr_t **sectors);
#endif
const char *
VasEBoot_hostdisk_os_dev_to_VasEBoot_drive (const char *os_dev, int add);


char *
VasEBoot_util_get_os_disk (const char *os_dev);

int
VasEBoot_util_get_dm_node_linear_info (dev_t dev,
				   int *maj, int *min,
				   VasEBoot_disk_addr_t *st);


/* Supplied by hostdisk_*.c.  */
VasEBoot_int64_t
VasEBoot_util_get_fd_size_os (VasEBoot_util_fd_t fd, const char *name, unsigned *log_secsize);
/* REturns partition offset in 512B blocks.  */
VasEBoot_disk_addr_t
VasEBoot_hostdisk_find_partition_start_os (const char *dev);
void
VasEBoot_hostdisk_flush_initial_buffer (const char *os_dev);

#ifdef __GNU__
int
VasEBoot_util_hurd_get_disk_info (const char *dev, VasEBoot_uint32_t *secsize, VasEBoot_disk_addr_t *offset,
			      VasEBoot_disk_addr_t *size, char **parent);
#endif

struct VasEBoot_util_hostdisk_data
{
  char *dev;
  int access_mode;
  VasEBoot_util_fd_t fd;
  int is_disk;
  int device_map;
};

void VasEBoot_host_init (void);
void VasEBoot_host_fini (void);
void VasEBoot_hostfs_init (void);
void VasEBoot_hostfs_fini (void);

#endif /* ! VAS_EBOOT_BIOSDISK_MACHINE_UTIL_HEADER */