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Diffstat (limited to 'src/include/fs/fat.h')
| -rw-r--r-- | src/include/fs/fat.h | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/src/include/fs/fat.h b/src/include/fs/fat.h deleted file mode 100644 index d445ce84b1..0000000000 --- a/src/include/fs/fat.h +++ /dev/null @@ -1,102 +0,0 @@ -/* - * GRUB -- GRand Unified Bootloader - * Copyright (C) 2001 Free Software Foundation, Inc. - * - * This program 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 2 of the License, or - * (at your option) any later version. - * - * This program 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 this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - - -/* - * Defines for the FAT BIOS Parameter Block (embedded in the first block - * of the partition. - */ - -typedef __signed__ char __s8; -typedef unsigned char __u8; -typedef __signed__ short __s16; -typedef unsigned short __u16; -typedef __signed__ int __s32; -typedef unsigned int __u32; - -/* Note that some shorts are not aligned, and must therefore - * be declared as array of two bytes. - */ -struct fat_bpb { - __s8 ignored[3]; /* Boot strap short or near jump */ - __s8 system_id[8]; /* Name - can be used to special case - partition manager volumes */ - __u8 bytes_per_sect[2]; /* bytes per logical sector */ - __u8 sects_per_clust;/* sectors/cluster */ - __u8 reserved_sects[2]; /* reserved sectors */ - __u8 num_fats; /* number of FATs */ - __u8 dir_entries[2]; /* root directory entries */ - __u8 short_sectors[2];/* number of sectors */ - __u8 media; /* media code (unused) */ - __u8 fat_length[2]; /* sectors/FAT */ - __u8 secs_track[2]; /* sectors per track */ - __u8 heads[2]; /* number of heads */ - __u8 hidden[2]; /* hidden sectors (unused) */ - __u8 long_sectors[2];/* number of sectors (if short_sectors == 0) */ - - /* The following fields are only used by FAT32 */ - __u8 fat32_length[2];/* sectors/FAT */ - __u8 flags[2]; /* bit 8: fat mirroring, low 4: active fat */ - __u8 version[2]; /* major, minor filesystem version */ - __u8 root_cluster[4];/* first cluster in root directory */ - __u8 info_sector[2]; /* filesystem info sector */ - __u8 backup_boot[2]; /* backup boot sector */ - __u8 reserved2[12]; /* Unused */ -}; - -#define FAT_CVT_U8(byte) (* (__u8*)(byte)) -#define FAT_CVT_U16(bytarr) le16_to_cpu(* (__u16*)(bytarr)) -#define FAT_CVT_U32(bytarr) le32_to_cpu(* (__u32*)(bytarr)) - -/* - * Defines how to differentiate a 12-bit and 16-bit FAT. - */ - -#define FAT_MAX_12BIT_CLUST 4087 /* 4085 + 2 */ - -/* - * Defines for the file "attribute" byte - */ - -#define FAT_ATTRIB_OK_MASK 0x37 -#define FAT_ATTRIB_NOT_OK_MASK 0xC8 -#define FAT_ATTRIB_DIR 0x10 -#define FAT_ATTRIB_LONGNAME 0x0F - -/* - * Defines for FAT directory entries - */ - -#define FAT_DIRENTRY_LENGTH 32 - -#define FAT_DIRENTRY_ATTRIB(entry) \ - FAT_CVT_U8(entry+11) -#define FAT_DIRENTRY_VALID(entry) \ - ( (FAT_CVT_U8(entry) != 0) \ - && (FAT_CVT_U8(entry) != 0xE5) \ - && !(FAT_DIRENTRY_ATTRIB(entry) & FAT_ATTRIB_NOT_OK_MASK) ) -#define FAT_DIRENTRY_FIRST_CLUSTER(entry) \ - (FAT_CVT_U16(entry+26)+(FAT_CVT_U16(entry+20) << 16)) -#define FAT_DIRENTRY_FILELENGTH(entry) \ - FAT_CVT_U32(entry+28) - -#define FAT_LONGDIR_ID(entry) \ - FAT_CVT_U8(entry) -#define FAT_LONGDIR_ALIASCHECKSUM(entry) \ - FAT_CVT_U8(entry+13) |