1/*
2 * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
3 *
4 * Copyright (C) 2002-2010 Aleph One Ltd.
5 *   for Toby Churchill Ltd and Brightstar Engineering
6 *
7 * Created by Charles Manning <charles@aleph1.co.uk>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU Lesser General Public License version 2.1 as
11 * published by the Free Software Foundation.
12 *
13 * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
14 */
15
16#ifndef __YAFFS_TAGSCOMPAT_H__
17#define __YAFFS_TAGSCOMPAT_H__
18
19#include "yaffs_guts.h"
20int yaffs_tags_compat_wr(yaffs_dev_t *dev,
21						int nand_chunk,
22						const __u8 *data,
23						const yaffs_ext_tags *tags);
24int yaffs_tags_compat_rd(yaffs_dev_t *dev,
25						int nand_chunk,
26						__u8 *data,
27						yaffs_ext_tags *tags);
28int yaffs_tags_compat_mark_bad(struct yaffs_dev_s *dev,
29					    int block_no);
30int yaffs_tags_compat_query_block(struct yaffs_dev_s *dev,
31					  int block_no,
32					  yaffs_block_state_t *state,
33					  __u32 *seq_number);
34
35void yaffs_calc_tags_ecc(yaffs_tags_t *tags);
36int yaffs_check_tags_ecc(yaffs_tags_t *tags);
37int yaffs_count_bits(__u8 byte);
38
39#endif
40