+/* SPDX-License-Identifier: GPL-2.0 */
/*
* 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
#define FS_TYPE_EXT 2
#define FS_TYPE_SANDBOX 3
#define FS_TYPE_UBIFS 4
+#define FS_TYPE_BTRFS 5
/*
* Tell the fs layer which block device an partition to use for future
*/
int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype);
+/*
+ * fs_set_blk_dev_with_part - Set current block device + partition
+ *
+ * Similar to fs_set_blk_dev(), but useful for cases where you already
+ * know the blk_desc and part number.
+ *
+ * Returns 0 on success.
+ * Returns non-zero if invalid partition or error accessing the disk.
+ */
+int fs_set_blk_dev_with_part(struct blk_desc *desc, int part);
+
/*
* Print the list of files on the partition previously set by fs_set_blk_dev(),
* in directory "dirname".
int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
loff_t *actwrite);
+/*
+ * Directory entry types, matches the subset of DT_x in posix readdir()
+ * which apply to u-boot.
+ */
+#define FS_DT_DIR 4 /* directory */
+#define FS_DT_REG 8 /* regular file */
+#define FS_DT_LNK 10 /* symbolic link */
+
+/*
+ * A directory entry, returned by fs_readdir(). Returns information
+ * about the file/directory at the current directory entry position.
+ */
+struct fs_dirent {
+ unsigned type; /* one of FS_DT_x (not a mask) */
+ loff_t size; /* size in bytes */
+ char name[256];
+};
+
+/* Note: fs_dir_stream should be treated as opaque to the user of fs layer */
+struct fs_dir_stream {
+ /* private to fs. layer: */
+ struct blk_desc *desc;
+ int part;
+};
+
+/*
+ * fs_opendir - Open a directory
+ *
+ * @filename: the path to directory to open
+ * @return a pointer to the directory stream or NULL on error and errno
+ * set appropriately
+ */
+struct fs_dir_stream *fs_opendir(const char *filename);
+
+/*
+ * fs_readdir - Read the next directory entry in the directory stream.
+ *
+ * Works in an analogous way to posix readdir(). The previously returned
+ * directory entry is no longer valid after calling fs_readdir() again.
+ * After fs_closedir() is called, the returned directory entry is no
+ * longer valid.
+ *
+ * @dirs: the directory stream
+ * @return the next directory entry (only valid until next fs_readdir() or
+ * fs_closedir() call, do not attempt to free()) or NULL if the end of
+ * the directory is reached.
+ */
+struct fs_dirent *fs_readdir(struct fs_dir_stream *dirs);
+
+/*
+ * fs_closedir - close a directory stream
+ *
+ * @dirs: the directory stream
+ */
+void fs_closedir(struct fs_dir_stream *dirs);
+
/*
* Common implementation for various filesystem commands, optionally limited
* to a specific filesystem type via the fstype parameter.