fs/yaffs2/yaffs_bitmap.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 /*
  17  * Chunk bitmap manipulations
  18  */
  19
  20 #ifndef __YAFFS_BITMAP_H__
  21 #define __YAFFS_BITMAP_H__
  22
  23 #include "yaffs_guts.h"
  24
  25 void yaffs_verify_chunk_bit_id(struct yaffs_dev *dev, int blk, int chunk);
  26 void yaffs_clear_chunk_bits(struct yaffs_dev *dev, int blk);
  27 void yaffs_clear_chunk_bit(struct yaffs_dev *dev, int blk, int chunk);
  28 void yaffs_set_chunk_bit(struct yaffs_dev *dev, int blk, int chunk);
  29 int yaffs_check_chunk_bit(struct yaffs_dev *dev, int blk, int chunk);
  30 int yaffs_still_some_chunks(struct yaffs_dev *dev, int blk);
  31 int yaffs_count_chunk_bits(struct yaffs_dev *dev, int blk);
  32
  33 #endif