fs: Move ls and read methods into ext4, fat

It doesn't make a lot of sense to have these methods in fs.c. They are
filesystem-specific, not generic code. Add each to the relevant
filesystem and remove the associated #ifdefs in fs.c.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c
index 7fdb4634c79..4dddde24764 100644
--- a/fs/ext4/ext4fs.c
+++ b/fs/ext4/ext4fs.c
@@ -191,3 +191,40 @@ int ext4fs_read(char *buf, unsigned len)
 
 	return ext4fs_read_file(ext4fs_file, 0, len, buf);
 }
+
+int ext4fs_probe(block_dev_desc_t *fs_dev_desc,
+		 disk_partition_t *fs_partition)
+{
+	ext4fs_set_blk_dev(fs_dev_desc, fs_partition);
+
+	if (!ext4fs_mount(fs_partition->size)) {
+		ext4fs_close();
+		return -1;
+	}
+
+	return 0;
+}
+
+int ext4_read_file(const char *filename, void *buf, int offset, int len)
+{
+	int file_len;
+	int len_read;
+
+	if (offset != 0) {
+		printf("** Cannot support non-zero offset **\n");
+		return -1;
+	}
+
+	file_len = ext4fs_open(filename);
+	if (file_len < 0) {
+		printf("** File not found %s **\n", filename);
+		return -1;
+	}
+
+	if (len == 0)
+		len = file_len;
+
+	len_read = ext4fs_read(buf, len);
+
+	return len_read;
+}