mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
cf6598193a
These commands may be used to determine the size of a file without actually reading the whole file content into memory. This may be used to determine if the file will fit into the memory buffer that will contain it. In particular, the DFU code will use it for this purpose in the next commit. Signed-off-by: Stephen Warren <swarren@nvidia.com>
97 lines
3.3 KiB
C
97 lines
3.3 KiB
C
/*
|
|
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef _FS_H
|
|
#define _FS_H
|
|
|
|
#include <common.h>
|
|
|
|
#define FS_TYPE_ANY 0
|
|
#define FS_TYPE_FAT 1
|
|
#define FS_TYPE_EXT 2
|
|
#define FS_TYPE_SANDBOX 3
|
|
|
|
/*
|
|
* Tell the fs layer which block device an partition to use for future
|
|
* commands. This also internally identifies the filesystem that is present
|
|
* within the partition. The identification process may be limited to a
|
|
* specific filesystem type by passing FS_* in the fstype parameter.
|
|
*
|
|
* Returns 0 on success.
|
|
* Returns non-zero if there is an error accessing the disk or partition, or
|
|
* no known filesystem type could be recognized on it.
|
|
*/
|
|
int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype);
|
|
|
|
/*
|
|
* Print the list of files on the partition previously set by fs_set_blk_dev(),
|
|
* in directory "dirname".
|
|
*
|
|
* Returns 0 on success. Returns non-zero on error.
|
|
*/
|
|
int fs_ls(const char *dirname);
|
|
|
|
/*
|
|
* Determine whether a file exists
|
|
*
|
|
* Returns 1 if the file exists, 0 if it doesn't exist.
|
|
*/
|
|
int fs_exists(const char *filename);
|
|
|
|
/*
|
|
* Determine a file's size
|
|
*
|
|
* Returns the file's size in bytes, or a negative value if it doesn't exist.
|
|
*/
|
|
int fs_size(const char *filename);
|
|
|
|
/*
|
|
* Read file "filename" from the partition previously set by fs_set_blk_dev(),
|
|
* to address "addr", starting at byte offset "offset", and reading "len"
|
|
* bytes. "offset" may be 0 to read from the start of the file. "len" may be
|
|
* 0 to read the entire file. Note that not all filesystem types support
|
|
* either/both offset!=0 or len!=0.
|
|
*
|
|
* Returns number of bytes read on success. Returns <= 0 on error.
|
|
*/
|
|
int fs_read(const char *filename, ulong addr, int offset, int len);
|
|
|
|
/*
|
|
* Write file "filename" to the partition previously set by fs_set_blk_dev(),
|
|
* from address "addr", starting at byte offset "offset", and writing "len"
|
|
* bytes. "offset" may be 0 to write to the start of the file. Note that not
|
|
* all filesystem types support offset!=0.
|
|
*
|
|
* Returns number of bytes read on success. Returns <= 0 on error.
|
|
*/
|
|
int fs_write(const char *filename, ulong addr, int offset, int len);
|
|
|
|
/*
|
|
* Common implementation for various filesystem commands, optionally limited
|
|
* to a specific filesystem type via the fstype parameter.
|
|
*/
|
|
int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
|
|
int fstype);
|
|
int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
|
|
int fstype);
|
|
int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
|
|
int fstype);
|
|
int file_exists(const char *dev_type, const char *dev_part, const char *file,
|
|
int fstype);
|
|
int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
|
|
int fstype);
|
|
|
|
#endif /* _FS_H */
|