mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
6152916a95
This could be used in scripts such as:
if test -e mmc 0:1 /boot/boot.scr; then
load mmc 0:1 ${scriptaddr} /boot/boot.scr
source ${scriptaddr}
fi
rather than:
if load mmc 0:1 ${scriptaddr} /boot/boot.scr; then
source ${scriptaddr}
fi
This prevents errors being printed by attempts to load non-existent
files, which can be important when checking for a large set of files,
such as /boot/boot.scr.uimg, /boot/boot.scr, /boot/extlinux.conf,
/boot.scr.uimg, /boot.scr, /extlinux.conf.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
87 lines
3 KiB
C
87 lines
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);
|
|
|
|
/*
|
|
* 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_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 */
|