| Stephen Warren | 045fa1e | 2012-10-22 06:43:51 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms and conditions of the GNU General Public License, |
| 6 | * version 2, as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 15 | */ |
| 16 | #ifndef _FS_H |
| 17 | #define _FS_H |
| 18 | |
| 19 | #include <common.h> |
| 20 | |
| 21 | #define FS_TYPE_ANY 0 |
| 22 | #define FS_TYPE_FAT 1 |
| 23 | #define FS_TYPE_EXT 2 |
| 24 | |
| 25 | /* |
| 26 | * Tell the fs layer which block device an partition to use for future |
| 27 | * commands. This also internally identifies the filesystem that is present |
| 28 | * within the partition. The identification process may be limited to a |
| 29 | * specific filesystem type by passing FS_* in the fstype parameter. |
| 30 | * |
| 31 | * Returns 0 on success. |
| 32 | * Returns non-zero if there is an error accessing the disk or partition, or |
| 33 | * no known filesystem type could be recognized on it. |
| 34 | */ |
| 35 | int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype); |
| 36 | |
| 37 | /* |
| 38 | * Print the list of files on the partition previously set by fs_set_blk_dev(), |
| 39 | * in directory "dirname". |
| 40 | * |
| 41 | * Returns 0 on success. Returns non-zero on error. |
| 42 | */ |
| 43 | int fs_ls(const char *dirname); |
| 44 | |
| 45 | /* |
| 46 | * Read file "filename" from the partition previously set by fs_set_blk_dev(), |
| 47 | * to address "addr", starting at byte offset "offset", and reading "len" |
| 48 | * bytes. "offset" may be 0 to read from the start of the file. "len" may be |
| 49 | * 0 to read the entire file. Note that not all filesystem types support |
| 50 | * either/both offset!=0 or len!=0. |
| 51 | * |
| 52 | * Returns number of bytes read on success. Returns <= 0 on error. |
| 53 | */ |
| 54 | int fs_read(const char *filename, ulong addr, int offset, int len); |
| 55 | |
| 56 | /* |
| 57 | * Common implementation for various filesystem commands, optionally limited |
| 58 | * to a specific filesystem type via the fstype parameter. |
| 59 | */ |
| 60 | int do_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], |
| 61 | int fstype); |
| 62 | int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], |
| 63 | int fstype); |
| 64 | |
| 65 | #endif /* _FS_H */ |