AA: generic: fold yaffs_cvs_2009_04_24 patch to generic/files

Backport of r34012.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@34017 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 71 insertions, 60 deletions

diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.c b/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.c
index 7622b1af7..402537fb4 100644
--- a/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.c
+++ b/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.c
@@ -14,16 +14,17 @@
 #include "yaffs_guts.h"
 #include "yaffs_tagscompat.h"
 #include "yaffs_ecc.h"
+#include "yaffs_getblockinfo.h"
 
-static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND);
+static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND);
 #ifdef NOTYET
-static void yaffs_CheckWrittenBlock(yaffs_Device * dev, int chunkInNAND);
-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
-				     const __u8 * data,
-				     const yaffs_Spare * spare);
-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND,
-				    const yaffs_Spare * spare);
-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND);
+static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND);
+static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
+				     const __u8 *data,
+				     const yaffs_Spare *spare);
+static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
+				    const yaffs_Spare *spare);
+static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND);
 #endif
 
 static const char yaffs_countBitsTable[256] = {
@@ -54,13 +55,13 @@ int yaffs_CountBits(__u8 x)
 
 /********** Tags ECC calculations  *********/
 
-void yaffs_CalcECC(const __u8 * data, yaffs_Spare * spare)
+void yaffs_CalcECC(const __u8 *data, yaffs_Spare *spare)
 {
 	yaffs_ECCCalculate(data, spare->ecc1);
 	yaffs_ECCCalculate(&data[256], spare->ecc2);
 }
 
-void yaffs_CalcTagsECC(yaffs_Tags * tags)
+void yaffs_CalcTagsECC(yaffs_Tags *tags)
 {
 	/* Calculate an ecc */
 
@@ -74,9 +75,8 @@ void yaffs_CalcTagsECC(yaffs_Tags * tags)
 	for (i = 0; i < 8; i++) {
 		for (j = 1; j & 0xff; j <<= 1) {
 			bit++;
-			if (b[i] & j) {
+			if (b[i] & j)
 				ecc ^= bit;
-			}
 		}
 	}
 
@@ -84,7 +84,7 @@ void yaffs_CalcTagsECC(yaffs_Tags * tags)
 
 }
 
-int yaffs_CheckECCOnTags(yaffs_Tags * tags)
+int yaffs_CheckECCOnTags(yaffs_Tags *tags)
 {
 	unsigned ecc = tags->ecc;
 
@@ -115,8 +115,8 @@ int yaffs_CheckECCOnTags(yaffs_Tags * tags)
 
 /********** Tags **********/
 
-static void yaffs_LoadTagsIntoSpare(yaffs_Spare * sparePtr,
-				    yaffs_Tags * tagsPtr)
+static void yaffs_LoadTagsIntoSpare(yaffs_Spare *sparePtr,
+				yaffs_Tags *tagsPtr)
 {
 	yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr;
 
@@ -132,8 +132,8 @@ static void yaffs_LoadTagsIntoSpare(yaffs_Spare * sparePtr,
 	sparePtr->tagByte7 = tu->asBytes[7];
 }
 
-static void yaffs_GetTagsFromSpare(yaffs_Device * dev, yaffs_Spare * sparePtr,
-				   yaffs_Tags * tagsPtr)
+static void yaffs_GetTagsFromSpare(yaffs_Device *dev, yaffs_Spare *sparePtr,
+				yaffs_Tags *tagsPtr)
 {
 	yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr;
 	int result;
@@ -148,21 +148,20 @@ static void yaffs_GetTagsFromSpare(yaffs_Device * dev, yaffs_Spare * sparePtr,
 	tu->asBytes[7] = sparePtr->tagByte7;
 
 	result = yaffs_CheckECCOnTags(tagsPtr);
-	if (result > 0) {
+	if (result > 0)
 		dev->tagsEccFixed++;
-	} else if (result < 0) {
+	else if (result < 0)
 		dev->tagsEccUnfixed++;
-	}
 }
 
-static void yaffs_SpareInitialise(yaffs_Spare * spare)
+static void yaffs_SpareInitialise(yaffs_Spare *spare)
 {
 	memset(spare, 0xFF, sizeof(yaffs_Spare));
 }
 
 static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev,
-				  int chunkInNAND, const __u8 * data,
-				  yaffs_Spare * spare)
+				int chunkInNAND, const __u8 *data,
+				yaffs_Spare *spare)
 {
 	if (chunkInNAND < dev->startBlock * dev->nChunksPerBlock) {
 		T(YAFFS_TRACE_ERROR,
@@ -177,9 +176,9 @@ static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev,
 
 static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev,
 				   int chunkInNAND,
-				   __u8 * data,
-				   yaffs_Spare * spare,
-				   yaffs_ECCResult * eccResult,
+				   __u8 *data,
+				   yaffs_Spare *spare,
+				   yaffs_ECCResult *eccResult,
 				   int doErrorCorrection)
 {
 	int retVal;
@@ -252,9 +251,11 @@ static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev,
 		/* Must allocate enough memory for spare+2*sizeof(int) */
 		/* for ecc results from device. */
 		struct yaffs_NANDSpare nspare;
-		retVal =
-		    dev->readChunkFromNAND(dev, chunkInNAND, data,
-					   (yaffs_Spare *) & nspare);
+
+		memset(&nspare, 0, sizeof(nspare));
+
+		retVal = dev->readChunkFromNAND(dev, chunkInNAND, data,
+					(yaffs_Spare *) &nspare);
 		memcpy(spare, &nspare, sizeof(yaffs_Spare));
 		if (data && doErrorCorrection) {
 			if (nspare.eccres1 > 0) {
@@ -302,8 +303,7 @@ static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev,
 static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
 				  int chunkInNAND)
 {
-
-	static int init = 0;
+	static int init;
 	static __u8 cmpbuf[YAFFS_BYTES_PER_CHUNK];
 	static __u8 data[YAFFS_BYTES_PER_CHUNK];
 	/* Might as well always allocate the larger size for */
@@ -331,12 +331,12 @@ static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
  * Functions for robustisizing
  */
 
-static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND)
+static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND)
 {
 	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
 
 	/* Mark the block for retirement */
-	yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1;
+	yaffs_GetBlockInfo(dev, blockInNAND + dev->blockOffset)->needsRetiring = 1;
 	T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
 	  (TSTR("**>>Block %d marked for retirement" TENDSTR), blockInNAND));
 
@@ -348,22 +348,22 @@ static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND)
 }
 
 #ifdef NOTYET
-static void yaffs_CheckWrittenBlock(yaffs_Device * dev, int chunkInNAND)
+static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND)
 {
 }
 
-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
-				     const __u8 * data,
-				     const yaffs_Spare * spare)
+static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
+				     const __u8 *data,
+				     const yaffs_Spare *spare)
 {
 }
 
-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND,
-				    const yaffs_Spare * spare)
+static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
+				    const yaffs_Spare *spare)
 {
 }
 
-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND)
+static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND)
 {
 	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
 
@@ -373,8 +373,8 @@ static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND)
 	yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
 }
 
-static int yaffs_VerifyCompare(const __u8 * d0, const __u8 * d1,
-			       const yaffs_Spare * s0, const yaffs_Spare * s1)
+static int yaffs_VerifyCompare(const __u8 *d0, const __u8 *d1,
+			       const yaffs_Spare *s0, const yaffs_Spare *s1)
 {
 
 	if (memcmp(d0, d1, YAFFS_BYTES_PER_CHUNK) != 0 ||
@@ -398,28 +398,35 @@ static int yaffs_VerifyCompare(const __u8 * d0, const __u8 * d1,
 }
 #endif				/* NOTYET */
 
-int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev,
-						    int chunkInNAND,
-						    const __u8 * data,
-						    const yaffs_ExtendedTags *
-						    eTags)
+int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev,
+						int chunkInNAND,
+						const __u8 *data,
+						const yaffs_ExtendedTags *eTags)
 {
 	yaffs_Spare spare;
 	yaffs_Tags tags;
 
 	yaffs_SpareInitialise(&spare);
 
-	if (eTags->chunkDeleted) {
+	if (eTags->chunkDeleted)
 		spare.pageStatus = 0;
-	} else {
+	else {
 		tags.objectId = eTags->objectId;
 		tags.chunkId = eTags->chunkId;
-		tags.byteCount = eTags->byteCount;
+
+		tags.byteCountLSB = eTags->byteCount & 0x3ff;
+
+		if (dev->nDataBytesPerChunk >= 1024)
+			tags.byteCountMSB = (eTags->byteCount >> 10) & 3;
+		else
+			tags.byteCountMSB = 3;
+
+
 		tags.serialNumber = eTags->serialNumber;
 
-		if (!dev->useNANDECC && data) {
+		if (!dev->useNANDECC && data)
 			yaffs_CalcECC(data, &spare);
-		}
+
 		yaffs_LoadTagsIntoSpare(&spare, &tags);
 
 	}
@@ -427,15 +434,15 @@ int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev,
 	return yaffs_WriteChunkToNAND(dev, chunkInNAND, data, &spare);
 }
 
-int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev,
+int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev,
 						     int chunkInNAND,
-						     __u8 * data,
-						     yaffs_ExtendedTags * eTags)
+						     __u8 *data,
+						     yaffs_ExtendedTags *eTags)
 {
 
 	yaffs_Spare spare;
 	yaffs_Tags tags;
-	yaffs_ECCResult eccResult;
+	yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_UNKNOWN;
 
 	static yaffs_Spare spareFF;
 	static int init;
@@ -466,7 +473,11 @@ int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev,
 
 				eTags->objectId = tags.objectId;
 				eTags->chunkId = tags.chunkId;
-				eTags->byteCount = tags.byteCount;
+				eTags->byteCount = tags.byteCountLSB;
+
+				if (dev->nDataBytesPerChunk >= 1024)
+					eTags->byteCount |= (((unsigned) tags.byteCountMSB) << 10);
+
 				eTags->serialNumber = tags.serialNumber;
 			}
 		}
@@ -497,9 +508,9 @@ int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev,
 }
 
 int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev,
-					  int blockNo, yaffs_BlockState *
-					  state,
-					  int *sequenceNumber)
+					  int blockNo,
+					  yaffs_BlockState *state,
+					  __u32 *sequenceNumber)
 {
 
 	yaffs_Spare spare0, spare1;