1/*
2 * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
3 *
4 * Copyright (C) 2002-2011 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(struct yaffs_dev *dev,
21			 int nand_chunk,
22			 const u8 *data, const struct yaffs_ext_tags *tags);
23int yaffs_tags_compat_rd(struct yaffs_dev *dev,
24			 int nand_chunk,
25			 u8 *data, struct yaffs_ext_tags *tags);
26int yaffs_tags_compat_mark_bad(struct yaffs_dev *dev, int block_no);
27int yaffs_tags_compat_query_block(struct yaffs_dev *dev,
28				  int block_no,
29				  enum yaffs_block_state *state,
30				  u32 *seq_number);
31
32void yaffs_calc_tags_ecc(struct yaffs_tags *tags);
33int yaffs_check_tags_ecc(struct yaffs_tags *tags);
34int yaffs_count_bits(u8 byte);
35
36#endif
37