/* * 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_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], int fstype, int cmdline_base); int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], int fstype); #endif /* _FS_H */