1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * YAFFS: Yet another Flash File System . A NAND-flash specific file system. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (C) 2002-2011 Aleph One Ltd. 5*4882a593Smuzhiyun * for Toby Churchill Ltd and Brightstar Engineering 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Created by Charles Manning <charles@aleph1.co.uk> 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or modify 10*4882a593Smuzhiyun * it under the terms of the GNU Lesser General Public License version 2.1 as 11*4882a593Smuzhiyun * published by the Free Software Foundation. 12*4882a593Smuzhiyun * 13*4882a593Smuzhiyun * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. 14*4882a593Smuzhiyun */ 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun /* 17*4882a593Smuzhiyun * Chunk bitmap manipulations 18*4882a593Smuzhiyun */ 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun #ifndef __YAFFS_BITMAP_H__ 21*4882a593Smuzhiyun #define __YAFFS_BITMAP_H__ 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun #include "yaffs_guts.h" 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun void yaffs_verify_chunk_bit_id(struct yaffs_dev *dev, int blk, int chunk); 26*4882a593Smuzhiyun void yaffs_clear_chunk_bits(struct yaffs_dev *dev, int blk); 27*4882a593Smuzhiyun void yaffs_clear_chunk_bit(struct yaffs_dev *dev, int blk, int chunk); 28*4882a593Smuzhiyun void yaffs_set_chunk_bit(struct yaffs_dev *dev, int blk, int chunk); 29*4882a593Smuzhiyun int yaffs_check_chunk_bit(struct yaffs_dev *dev, int blk, int chunk); 30*4882a593Smuzhiyun int yaffs_still_some_chunks(struct yaffs_dev *dev, int blk); 31*4882a593Smuzhiyun int yaffs_count_chunk_bits(struct yaffs_dev *dev, int blk); 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun #endif 34