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Diffstat (limited to 'include/fs.h')
| -rw-r--r-- | include/fs.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/include/fs.h b/include/fs.h new file mode 100644 index 0000000000..f396d8492a --- /dev/null +++ b/include/fs.h @@ -0,0 +1,65 @@ +/* + * 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 + +/* + * 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); + +/* + * 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); + +/* + * Common implementation for various filesystem commands, optionally limited + * to a specific filesystem type via the fstype parameter. + */ +int do_fsload(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); + +#endif /* _FS_H */ |