/*
- * YAFFS: Yet another FFS. A NAND-flash specific file system.
+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
- * Copyright (C) 2002 Aleph One Ltd.
+ * Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
*/
-
+
const char *yaffs_nand_c_version =
- "$Id: yaffs_nand.c,v 1.2 2006-09-21 08:13:59 charles Exp $";
+ "$Id: yaffs_nand.c,v 1.9 2008-05-05 07:58:58 charles Exp $";
#include "yaffs_nand.h"
#include "yaffs_tagscompat.h"
#include "yaffs_tagsvalidity.h"
+#include "yaffs_getblockinfo.h"
int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
__u8 * buffer,
yaffs_ExtendedTags * tags)
{
int result;
-
+ yaffs_ExtendedTags localTags;
+
int realignedChunkInNAND = chunkInNAND - dev->chunkOffset;
+ /* If there are no tags provided, use local tags to get prioritised gc working */
+ if(!tags)
+ tags = &localTags;
+
if (dev->readChunkWithTagsFromNAND)
result = dev->readChunkWithTagsFromNAND(dev, realignedChunkInNAND, buffer,
tags);
result = yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(dev,
realignedChunkInNAND,
buffer,
- tags);
- if(tags &&
+ tags);
+ if(tags &&
tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR){
-
+
yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock);
- bi->gcPrioritise = 1;
+ yaffs_HandleChunkError(dev,bi);
}
-
+
return result;
}
{
chunkInNAND -= dev->chunkOffset;
-
+
if (tags) {
tags->sequenceNumber = dev->sequenceNumber;
tags->chunkUsed = 1;
int yaffs_QueryInitialBlockState(yaffs_Device * dev,
int blockNo,
yaffs_BlockState * state,
- unsigned *sequenceNumber)
+ __u32 *sequenceNumber)
{
blockNo -= dev->blockOffset;
dev->nBlockErasures++;
result = dev->eraseBlockInNAND(dev, blockInNAND);
- /* If at first we don't succeed, try again *once*.*/
- if (!result)
- result = dev->eraseBlockInNAND(dev, blockInNAND);
return result;
}
}
-
+