X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_nand.c;h=bd815cb7af92b7dea0940e25ecd0daf9c19ebb58;hp=cd39d516066564bd452bafd9e48e2a7da82e67c6;hb=4183083d06e2b08f338b5ea155f01b45b3fa832e;hpb=e1b8e63260986ab7afec3c379e7a320677c95846

diff --git a/yaffs_nand.c b/yaffs_nand.c
index cd39d51..bd815cb 100644
--- a/yaffs_nand.c
+++ b/yaffs_nand.c
@@ -1,7 +1,7 @@
 /*
- * 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>
@@ -9,41 +9,56 @@
  * 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 1.1 2006-05-08 10:13:34 charles Exp $";
+	"$Id: yaffs_nand.c,v 1.10 2009-03-06 17:20:54 wookey 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 yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
+					   __u8 *buffer,
+					   yaffs_ExtendedTags *tags)
 {
-	chunkInNAND -= dev->chunkOffset;
+	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)
-		return dev->readChunkWithTagsFromNAND(dev, chunkInNAND, buffer,
+		result = dev->readChunkWithTagsFromNAND(dev, realignedChunkInNAND, buffer,
 						      tags);
 	else
-		return yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(dev,
-									chunkInNAND,
+		result = yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(dev,
+									realignedChunkInNAND,
 									buffer,
 									tags);
+	if (tags &&
+	   tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR) {
+
+		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock);
+		yaffs_HandleChunkError(dev, bi);
+	}
+
+	return result;
 }
 
-int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev,
+int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev,
 						   int chunkInNAND,
-						   const __u8 * buffer,
-						   yaffs_ExtendedTags * tags)
+						   const __u8 *buffer,
+						   yaffs_ExtendedTags *tags)
 {
 	chunkInNAND -= dev->chunkOffset;
 
-	
+
 	if (tags) {
 		tags->sequenceNumber = dev->sequenceNumber;
 		tags->chunkUsed = 1;
@@ -70,7 +85,7 @@ int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev,
 								       tags);
 }
 
-int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo)
+int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo)
 {
 	blockNo -= dev->blockOffset;
 
@@ -81,10 +96,10 @@ int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo)
 		return yaffs_TagsCompatabilityMarkNANDBlockBad(dev, blockNo);
 }
 
-int yaffs_QueryInitialBlockState(yaffs_Device * dev,
+int yaffs_QueryInitialBlockState(yaffs_Device *dev,
 						 int blockNo,
-						 yaffs_BlockState * state,
-						 unsigned *sequenceNumber)
+						 yaffs_BlockState *state,
+						 __u32 *sequenceNumber)
 {
 	blockNo -= dev->blockOffset;
 
@@ -108,9 +123,6 @@ int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
 	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;
 }
 
@@ -120,4 +132,4 @@ int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev)
 }
 
 
- 
+