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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2000,2001,2002,2003,2004,2005,2007,2008,2009 Free Software Foundation, Inc.
*
* GRUB 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.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_FAT_H
#define GRUB_FAT_H 1
#include <grub/types.h>
struct grub_fat_bpb
{
grub_uint8_t jmp_boot[3];
grub_uint8_t oem_name[8];
grub_uint16_t bytes_per_sector;
grub_uint8_t sectors_per_cluster;
grub_uint16_t num_reserved_sectors;
grub_uint8_t num_fats; /* 0x10 */
grub_uint16_t num_root_entries;
grub_uint16_t num_total_sectors_16;
grub_uint8_t media; /* 0x15 */
grub_uint16_t sectors_per_fat_16;
grub_uint16_t sectors_per_track; /* 0x18 */
grub_uint16_t num_heads; /* 0x1A */
grub_uint32_t num_hidden_sectors; /* 0x1C */
grub_uint32_t num_total_sectors_32; /* 0x20 */
union
{
struct
{
grub_uint8_t num_ph_drive;
grub_uint8_t reserved;
grub_uint8_t boot_sig;
grub_uint32_t num_serial;
grub_uint8_t label[11];
grub_uint8_t fstype[8];
} GRUB_PACKED fat12_or_fat16;
struct
{
grub_uint32_t sectors_per_fat_32;
grub_uint16_t extended_flags;
grub_uint16_t fs_version;
grub_uint32_t root_cluster;
grub_uint16_t fs_info;
grub_uint16_t backup_boot_sector;
grub_uint8_t reserved[12];
grub_uint8_t num_ph_drive;
grub_uint8_t reserved1;
grub_uint8_t boot_sig;
grub_uint32_t num_serial;
grub_uint8_t label[11];
grub_uint8_t fstype[8];
} GRUB_PACKED fat32;
} GRUB_PACKED version_specific;
} GRUB_PACKED;
#ifdef GRUB_UTIL
#include <grub/disk.h>
grub_disk_addr_t
grub_fat_get_cluster_sector (grub_disk_t disk, grub_uint64_t *sec_per_lcn);
#endif
#endif
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