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" 20 int yaffs_tags_compat_wr(struct yaffs_dev *dev, 21 int nand_chunk, 22 const u8 *data, const struct yaffs_ext_tags *tags); 23 int yaffs_tags_compat_rd(struct yaffs_dev *dev, 24 int nand_chunk, 25 u8 *data, struct yaffs_ext_tags *tags); 26 int yaffs_tags_compat_mark_bad(struct yaffs_dev *dev, int block_no); 27 int yaffs_tags_compat_query_block(struct yaffs_dev *dev, 28 int block_no, 29 enum yaffs_block_state *state, 30 u32 *seq_number); 31 32 void yaffs_calc_tags_ecc(struct yaffs_tags *tags); 33 int yaffs_check_tags_ecc(struct yaffs_tags *tags); 34 int yaffs_count_bits(u8 byte); 35 36 #endif 37