fs/yaffs2/yaffs_tagscompat.h

   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