110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0
|
|
*/
|
|
#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
|
|
#define FS_TYPE_UBIFS 4
|
|
|
|
/*
|
|
* 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);
|
|
|
|
/*
|
|
* fs_size - Determine a file's size
|
|
*
|
|
* @filename: Name of the file
|
|
* @size: Size of file
|
|
* @return 0 if ok with valid *size, negative on error
|
|
*/
|
|
int fs_size(const char *filename, loff_t *size);
|
|
|
|
/*
|
|
* fs_read - Read file from the partition previously set by fs_set_blk_dev()
|
|
* Note that not all filesystem types support either/both offset!=0 or len!=0.
|
|
*
|
|
* @filename: Name of file to read from
|
|
* @addr: The address to read into
|
|
* @offset: The offset in file to read from
|
|
* @len: The number of bytes to read. Maybe 0 to read entire file
|
|
* @actread: Returns the actual number of bytes read
|
|
* @return 0 if ok with valid *actread, -1 on error conditions
|
|
*/
|
|
int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
|
|
loff_t *actread);
|
|
|
|
/*
|
|
* fs_write - Write file to the partition previously set by fs_set_blk_dev()
|
|
* Note that not all filesystem types support offset!=0.
|
|
*
|
|
* @filename: Name of file to read from
|
|
* @addr: The address to read into
|
|
* @offset: The offset in file to read from. Maybe 0 to write to start of file
|
|
* @len: The number of bytes to write
|
|
* @actwrite: Returns the actual number of bytes written
|
|
* @return 0 if ok with valid *actwrite, -1 on error conditions
|
|
*/
|
|
int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
|
|
loff_t *actwrite);
|
|
|
|
/*
|
|
* 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);
|
|
|
|
/*
|
|
* Determine the UUID of the specified filesystem and print it. Optionally it is
|
|
* possible to store the UUID directly in env.
|
|
*/
|
|
int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
|
|
int fstype);
|
|
|
|
/*
|
|
* Determine the type of the specified filesystem and print it. Optionally it is
|
|
* possible to store the type directly in env.
|
|
*/
|
|
int do_fs_type(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
|
|
|
|
#endif /* _FS_H */
|