xref: /OK3568_Linux_fs/u-boot/fs/yaffs2/yaffs_nand.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
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 #ifndef __YAFFS_NAND_H__
17*4882a593Smuzhiyun #define __YAFFS_NAND_H__
18*4882a593Smuzhiyun #include "yaffs_guts.h"
19*4882a593Smuzhiyun 
20*4882a593Smuzhiyun int yaffs_rd_chunk_tags_nand(struct yaffs_dev *dev, int nand_chunk,
21*4882a593Smuzhiyun 			     u8 *buffer, struct yaffs_ext_tags *tags);
22*4882a593Smuzhiyun 
23*4882a593Smuzhiyun int yaffs_wr_chunk_tags_nand(struct yaffs_dev *dev,
24*4882a593Smuzhiyun 			     int nand_chunk,
25*4882a593Smuzhiyun 			     const u8 *buffer, struct yaffs_ext_tags *tags);
26*4882a593Smuzhiyun 
27*4882a593Smuzhiyun int yaffs_mark_bad(struct yaffs_dev *dev, int block_no);
28*4882a593Smuzhiyun 
29*4882a593Smuzhiyun int yaffs_query_init_block_state(struct yaffs_dev *dev,
30*4882a593Smuzhiyun 				 int block_no,
31*4882a593Smuzhiyun 				 enum yaffs_block_state *state,
32*4882a593Smuzhiyun 				 unsigned *seq_number);
33*4882a593Smuzhiyun 
34*4882a593Smuzhiyun int yaffs_erase_block(struct yaffs_dev *dev, int flash_block);
35*4882a593Smuzhiyun 
36*4882a593Smuzhiyun int yaffs_init_nand(struct yaffs_dev *dev);
37*4882a593Smuzhiyun 
38*4882a593Smuzhiyun #endif
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