xref: /openbmc/u-boot/fs/yaffs2/yaffs_bitmap.h (revision 753ac610)
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
34