projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 71f95118 WD |
1 | /* |
| 2 | * R/O (V)FAT 12/16/32 filesystem implementation by Marcus Sundberg | |
| 3 | * | |
| 4 | * 2002-07-28 - rjones@nexus-tech.net - ported to ppcboot v1.1.6 | |
| 5 | * 2003-03-10 - kharris@nexus-tech.net - ported to u-boot | |
| 6 | * | |
| 7 | * See file CREDITS for list of people who contributed to this | |
| 8 | * project. | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or | |
| 11 | * modify it under the terms of the GNU General Public License as | |
| 12 | * published by the Free Software Foundation; either version 2 of | |
| 13 | * the License, or (at your option) any later version. | |
| 14 | * | |
| 15 | * This program is distributed in the hope that it will be useful, | |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 18 | * GNU General Public License for more details. | |
| 19 | * | |
| 20 | * You should have received a copy of the GNU General Public License | |
| 21 | * along with this program; if not, write to the Free Software | |
| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
| 23 | * MA 02111-1307 USA | |
| 24 | * | |
| 25 | */ | |
| 26 | ||
| 27 | #ifndef _FAT_H_ | |
| 28 | #define _FAT_H_ | |
| 29 | ||
| 30 | #define CONFIG_SUPPORT_VFAT | |
| 31 | ||
| 32 | #define SECTOR_SIZE FS_BLOCK_SIZE | |
| 33 | ||
| 34 | #define FS_BLOCK_SIZE 512 | |
| 35 | ||
| 36 | #if FS_BLOCK_SIZE != SECTOR_SIZE | |
| 37 | #error FS_BLOCK_SIZE != SECTOR_SIZE - This code needs to be fixed! | |
| 38 | #endif | |
| 39 | ||
| 40 | #define MAX_CLUSTSIZE 65536 | |
| 41 | #define DIRENTSPERBLOCK (FS_BLOCK_SIZE/sizeof(dir_entry)) | |
| 42 | #define DIRENTSPERCLUST ((mydata->clust_size*SECTOR_SIZE)/sizeof(dir_entry)) | |
| 43 | ||
| 44 | #define FATBUFBLOCKS 6 | |
| 45 | #define FATBUFSIZE (FS_BLOCK_SIZE*FATBUFBLOCKS) | |
| cd37d9e6 | 46 | #define FAT12BUFSIZE ((FATBUFSIZE*2)/3) |
| 71f95118 WD |
47 | #define FAT16BUFSIZE (FATBUFSIZE/2) |
| 48 | #define FAT32BUFSIZE (FATBUFSIZE/4) | |
| 49 | ||
| 50 | ||
| 51 | /* Filesystem identifiers */ | |
| 52 | #define FAT12_SIGN "FAT12 " | |
| 53 | #define FAT16_SIGN "FAT16 " | |
| 54 | #define FAT32_SIGN "FAT32 " | |
| 55 | #define SIGNLEN 8 | |
| 56 | ||
| 57 | /* File attributes */ | |
| 58 | #define ATTR_RO 1 | |
| 59 | #define ATTR_HIDDEN 2 | |
| 60 | #define ATTR_SYS 4 | |
| 61 | #define ATTR_VOLUME 8 | |
| 62 | #define ATTR_DIR 16 | |
| 63 | #define ATTR_ARCH 32 | |
| 64 | ||
| 65 | #define ATTR_VFAT (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME) | |
| 66 | ||
| 67 | #define DELETED_FLAG ((char)0xe5) /* Marks deleted files when in name[0] */ | |
| 68 |