X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_mtdif2.c;h=c1d447819970e7ccab5a81bc0e7b576ae807b233;hp=918f8de2b6aa95f6cd8a2fb5e363431fad27ea34;hb=4778ade2698a2de536594ee9cbf32db58346b59c;hpb=1ffa02489a63129109b66774681c94fe0a8a946a

diff --git a/yaffs_mtdif2.c b/yaffs_mtdif2.c
index 918f8de..c1d4478 100644
--- a/yaffs_mtdif2.c
+++ b/yaffs_mtdif2.c
@@ -1,7 +1,7 @@
 /*
  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
  *
- * Copyright (C) 2002-2007 Aleph One Ltd.
+ * Copyright (C) 2002-2010 Aleph One Ltd.
  *   for Toby Churchill Ltd and Brightstar Engineering
  *
  * Created by Charles Manning <charles@aleph1.co.uk>
@@ -13,11 +13,8 @@
 
 /* mtd interface for YAFFS2 */
 
-const char *yaffs_mtdif2_c_version =
-	"$Id: yaffs_mtdif2.c,v 1.24 2009-10-14 00:01:57 charles Exp $";
-
 #include "yportenv.h"
-
+#include "yaffs_trace.h"
 
 #include "yaffs_mtdif2.h"
 
@@ -27,6 +24,8 @@ const char *yaffs_mtdif2_c_version =
 
 #include "yaffs_packedtags2.h"
 
+#include "yaffs_linux.h"
+
 /* NB For use with inband tags....
  * We assume that the data buffer is of size totalBytersPerChunk so that we can also
  * use it to load the tags.
@@ -35,7 +34,7 @@ int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
 				      const __u8 *data,
 				      const yaffs_ExtendedTags *tags)
 {
-	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+	struct mtd_info *mtd = yaffs_DeviceToContext(dev)->mtd;
 #if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
 	struct mtd_oob_ops ops;
 #else
@@ -47,8 +46,8 @@ int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
 
 	yaffs_PackedTags2 pt;
 
-	int packed_tags_size = dev->noTagsECC ? sizeof(pt.t) : sizeof(pt);
-	void * packed_tags_ptr = dev->noTagsECC ? (void *) &pt.t : (void *)&pt;
+	int packed_tags_size = dev->param.noTagsECC ? sizeof(pt.t) : sizeof(pt);
+	void * packed_tags_ptr = dev->param.noTagsECC ? (void *) &pt.t : (void *)&pt;
 
 	T(YAFFS_TRACE_MTD,
 	  (TSTR
@@ -56,7 +55,7 @@ int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
 	    TENDSTR), chunkInNAND, data, tags));
 
 
-	addr  = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk;
+	addr  = ((loff_t) chunkInNAND) * dev->param.totalBytesPerChunk;
 
 	/* For yaffs2 writing there must be both data and tags.
 	 * If we're using inband tags, then the tags are stuffed into
@@ -64,30 +63,30 @@ int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
 	 */
 	if (!data || !tags)
 		BUG();
-	else if (dev->inbandTags) {
+	else if (dev->param.inbandTags) {
 		yaffs_PackedTags2TagsPart *pt2tp;
 		pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->nDataBytesPerChunk);
 		yaffs_PackTags2TagsPart(pt2tp, tags);
 	} else
-		yaffs_PackTags2(dev, &pt, tags);
+		yaffs_PackTags2(&pt, tags, !dev->param.noTagsECC);
 
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
 	ops.mode = MTD_OOB_AUTO;
-	ops.ooblen = (dev->inbandTags) ? 0 : packed_tags_size;
-	ops.len = dev->totalBytesPerChunk;
+	ops.ooblen = (dev->param.inbandTags) ? 0 : packed_tags_size;
+	ops.len = dev->param.totalBytesPerChunk;
 	ops.ooboffs = 0;
 	ops.datbuf = (__u8 *)data;
-	ops.oobbuf = (dev->inbandTags) ? NULL : packed_tags_ptr;
+	ops.oobbuf = (dev->param.inbandTags) ? NULL : packed_tags_ptr;
 	retval = mtd->write_oob(mtd, addr, &ops);
 
 #else
-	if (!dev->inbandTags) {
+	if (!dev->param.inbandTags) {
 		retval =
 		    mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
 				   &dummy, data, (__u8 *) packed_tags_ptr, NULL);
 	} else {
 		retval =
-		    mtd->write(mtd, addr, dev->totalBytesPerChunk, &dummy,
+		    mtd->write(mtd, addr, dev->param.totalBytesPerChunk, &dummy,
 			       data);
 	}
 #endif
@@ -101,7 +100,7 @@ int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
 int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
 				       __u8 *data, yaffs_ExtendedTags *tags)
 {
-	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+	struct mtd_info *mtd = yaffs_DeviceToContext(dev)->mtd;
 #if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
 	struct mtd_oob_ops ops;
 #endif
@@ -109,19 +108,19 @@ int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
 	int retval = 0;
 	int localData = 0;
 
-	loff_t addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk;
+	loff_t addr = ((loff_t) chunkInNAND) * dev->param.totalBytesPerChunk;
 
 	yaffs_PackedTags2 pt;
 
-	int packed_tags_size = dev->noTagsECC ? sizeof(pt.t) : sizeof(pt);
-	void * packed_tags_ptr = dev->noTagsECC ? (void *) &pt.t: (void *)&pt;
+	int packed_tags_size = dev->param.noTagsECC ? sizeof(pt.t) : sizeof(pt);
+	void * packed_tags_ptr = dev->param.noTagsECC ? (void *) &pt.t: (void *)&pt;
 
 	T(YAFFS_TRACE_MTD,
 	  (TSTR
 	   ("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p"
 	    TENDSTR), chunkInNAND, data, tags));
 
-	if (dev->inbandTags) {
+	if (dev->param.inbandTags) {
 
 		if (!data) {
 			localData = 1;
@@ -133,8 +132,8 @@ int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
 
 
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-	if (dev->inbandTags || (data && !tags))
-		retval = mtd->read(mtd, addr, dev->totalBytesPerChunk,
+	if (dev->param.inbandTags || (data && !tags))
+		retval = mtd->read(mtd, addr, dev->param.totalBytesPerChunk,
 				&dummy, data);
 	else if (tags) {
 		ops.mode = MTD_OOB_AUTO;
@@ -142,11 +141,11 @@ int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
 		ops.len = data ? dev->nDataBytesPerChunk : packed_tags_size;
 		ops.ooboffs = 0;
 		ops.datbuf = data;
-		ops.oobbuf = dev->spareBuffer;
+		ops.oobbuf = yaffs_DeviceToContext(dev)->spareBuffer;
 		retval = mtd->read_oob(mtd, addr, &ops);
 	}
 #else
-	if (!dev->inbandTags && data && tags) {
+	if (!dev->param.inbandTags && data && tags) {
 
 		retval = mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
 					  &dummy, data, dev->spareBuffer,
@@ -156,7 +155,7 @@ int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
 			retval =
 			    mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy,
 				      data);
-		if (!dev->inbandTags && tags)
+		if (!dev->param.inbandTags && tags)
 			retval =
 			    mtd->read_oob(mtd, addr, mtd->oobsize, &dummy,
 					  dev->spareBuffer);
@@ -164,7 +163,7 @@ int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
 #endif
 
 
-	if (dev->inbandTags) {
+	if (dev->param.inbandTags) {
 		if (tags) {
 			yaffs_PackedTags2TagsPart *pt2tp;
 			pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk];
@@ -172,16 +171,22 @@ int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
 		}
 	} else {
 		if (tags) {
-			memcpy(packed_tags_ptr, dev->spareBuffer, packed_tags_size);
-			yaffs_UnpackTags2(dev, tags, &pt);
+			memcpy(packed_tags_ptr, yaffs_DeviceToContext(dev)->spareBuffer, packed_tags_size);
+			yaffs_UnpackTags2(tags, &pt, !dev->param.noTagsECC);
 		}
 	}
 
 	if (localData)
 		yaffs_ReleaseTempBuffer(dev, data, __LINE__);
 
-	if (tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR)
+	if (tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) {
 		tags->eccResult = YAFFS_ECC_RESULT_UNFIXED;
+		dev->eccUnfixed++;
+	}
+	if(tags && retval == -EUCLEAN && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) {
+		tags->eccResult = YAFFS_ECC_RESULT_FIXED;
+		dev->eccFixed++;
+	}
 	if (retval == 0)
 		return YAFFS_OK;
 	else
@@ -190,15 +195,15 @@ int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
 
 int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
 {
-	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+	struct mtd_info *mtd = yaffs_DeviceToContext(dev)->mtd;
 	int retval;
 	T(YAFFS_TRACE_MTD,
 	  (TSTR("nandmtd2_MarkNANDBlockBad %d" TENDSTR), blockNo));
 
 	retval =
 	    mtd->block_markbad(mtd,
-			       blockNo * dev->nChunksPerBlock *
-			       dev->totalBytesPerChunk);
+			       blockNo * dev->param.nChunksPerBlock *
+			       dev->param.totalBytesPerChunk);
 
 	if (retval == 0)
 		return YAFFS_OK;
@@ -210,15 +215,15 @@ int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
 int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
 			    yaffs_BlockState *state, __u32 *sequenceNumber)
 {
-	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+	struct mtd_info *mtd = yaffs_DeviceToContext(dev)->mtd;
 	int retval;
 
 	T(YAFFS_TRACE_MTD,
 	  (TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), blockNo));
 	retval =
 	    mtd->block_isbad(mtd,
-			     blockNo * dev->nChunksPerBlock *
-			     dev->totalBytesPerChunk);
+			     blockNo * dev->param.nChunksPerBlock *
+			     dev->param.totalBytesPerChunk);
 
 	if (retval) {
 		T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR)));
@@ -229,7 +234,7 @@ int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
 		yaffs_ExtendedTags t;
 		nandmtd2_ReadChunkWithTagsFromNAND(dev,
 						   blockNo *
-						   dev->nChunksPerBlock, NULL,
+						   dev->param.nChunksPerBlock, NULL,
 						   &t);
 
 		if (t.chunkUsed) {