blob: 4f30a385a03ca2d2a4e2fe65b6b38168acdced07 [file] [log] [blame]
Stephen Warren045fa1e2012-10-22 06:43:51 +00001/*
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 */
35int 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 */
43int 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 */
54int 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 */
Stephen Warrenf9b55e22012-10-31 11:05:07 +000060int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
Stephen Warren3f83c872012-10-30 12:04:19 +000061 int fstype, int cmdline_base);
Stephen Warren045fa1e2012-10-22 06:43:51 +000062int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
63 int fstype);
64
65#endif /* _FS_H */