2 * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
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.
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
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/>.
24 #define FS_TYPE_SANDBOX 3
25 #define FS_TYPE_UBIFS 4
28 * Tell the fs layer which block device an partition to use for future
29 * commands. This also internally identifies the filesystem that is present
30 * within the partition. The identification process may be limited to a
31 * specific filesystem type by passing FS_* in the fstype parameter.
33 * Returns 0 on success.
34 * Returns non-zero if there is an error accessing the disk or partition, or
35 * no known filesystem type could be recognized on it.
37 int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype);
40 * Print the list of files on the partition previously set by fs_set_blk_dev(),
41 * in directory "dirname".
43 * Returns 0 on success. Returns non-zero on error.
45 int fs_ls(const char *dirname);
48 * Determine whether a file exists
50 * Returns 1 if the file exists, 0 if it doesn't exist.
52 int fs_exists(const char *filename);
55 * fs_size - Determine a file's size
57 * @filename: Name of the file
59 * @return 0 if ok with valid *size, negative on error
61 int fs_size(const char *filename, loff_t *size);
64 * fs_read - Read file from the partition previously set by fs_set_blk_dev()
65 * Note that not all filesystem types support either/both offset!=0 or len!=0.
67 * @filename: Name of file to read from
68 * @addr: The address to read into
69 * @offset: The offset in file to read from
70 * @len: The number of bytes to read. Maybe 0 to read entire file
71 * @actread: Returns the actual number of bytes read
72 * @return 0 if ok with valid *actread, -1 on error conditions
74 int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
78 * fs_write - Write file to the partition previously set by fs_set_blk_dev()
79 * Note that not all filesystem types support offset!=0.
81 * @filename: Name of file to read from
82 * @addr: The address to read into
83 * @offset: The offset in file to read from. Maybe 0 to write to start of file
84 * @len: The number of bytes to write
85 * @actwrite: Returns the actual number of bytes written
86 * @return 0 if ok with valid *actwrite, -1 on error conditions
88 int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
92 * Common implementation for various filesystem commands, optionally limited
93 * to a specific filesystem type via the fstype parameter.
95 int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
97 int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
99 int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
101 int file_exists(const char *dev_type, const char *dev_part, const char *file,
103 int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
107 * Determine the UUID of the specified filesystem and print it. Optionally it is
108 * possible to store the UUID directly in env.
110 int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
114 * Determine the type of the specified filesystem and print it. Optionally it is
115 * possible to store the type directly in env.
117 int do_fs_type(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);