/*
* 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>
/* mtd interface for YAFFS2 */
-const char *yaffs_mtdif2_c_version =
- "$Id: yaffs_mtdif2.c,v 1.22 2008-11-02 22:47:13 charles Exp $";
-
#include "yportenv.h"
-
+#include "yaffs_trace.h"
#include "yaffs_mtdif2.h"
#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.
*/
-int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND,
- const __u8 * data,
- const yaffs_ExtendedTags * tags)
+int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
+ const __u8 *data,
+ const yaffs_ExtendedTags *tags)
{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-#if (MTD_VERSION_CODE > MTD_VERSION(2,6,17))
+ struct mtd_info *mtd = yaffs_DeviceToContext(dev)->mtd;
+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
struct mtd_oob_ops ops;
#else
size_t dummy;
yaffs_PackedTags2 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_WriteChunkWithTagsToNAND chunk %d data %p tags %p"
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
* the end of the data buffer.
*/
- if(!data || !tags)
- BUG();
- else if(dev->inbandTags){
+ if (!data || !tags)
+ BUG();
+ else if (dev->param.inbandTags) {
yaffs_PackedTags2TagsPart *pt2tp;
pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->nDataBytesPerChunk);
- yaffs_PackTags2TagsPart(pt2tp,tags);
- }
- else
- yaffs_PackTags2(&pt, tags);
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+ yaffs_PackTags2TagsPart(pt2tp, tags);
+ } else
+ 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 : sizeof(pt);
- 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 : (void *)&pt;
+ 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 *) & pt, NULL);
+ &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
return YAFFS_FAIL;
}
-int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
- __u8 * data, yaffs_ExtendedTags * tags)
+int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
+ __u8 *data, yaffs_ExtendedTags *tags)
{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-#if (MTD_VERSION_CODE > MTD_VERSION(2,6,17))
+ struct mtd_info *mtd = yaffs_DeviceToContext(dev)->mtd;
+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
struct mtd_oob_ops ops;
#endif
size_t dummy;
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->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(!data) {
+
+ if (dev->param.inbandTags) {
+
+ if (!data) {
localData = 1;
- data = yaffs_GetTempBuffer(dev,__LINE__);
+ data = yaffs_GetTempBuffer(dev, __LINE__);
}
-
+
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
- if (dev->inbandTags || (data && !tags))
- retval = mtd->read(mtd, addr, dev->totalBytesPerChunk,
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ if (dev->param.inbandTags || (data && !tags))
+ retval = mtd->read(mtd, addr, dev->param.totalBytesPerChunk,
&dummy, data);
else if (tags) {
ops.mode = MTD_OOB_AUTO;
- ops.ooblen = sizeof(pt);
- ops.len = data ? dev->nDataBytesPerChunk : sizeof(pt);
+ ops.ooblen = packed_tags_size;
+ 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,
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);
#endif
- if(dev->inbandTags){
- if(tags){
- yaffs_PackedTags2TagsPart * pt2tp;
- pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk];
- yaffs_UnpackTags2TagsPart(tags,pt2tp);
+ if (dev->param.inbandTags) {
+ if (tags) {
+ yaffs_PackedTags2TagsPart *pt2tp;
+ pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk];
+ yaffs_UnpackTags2TagsPart(tags, pt2tp);
}
- }
- else {
- if (tags){
- memcpy(&pt, dev->spareBuffer, sizeof(pt));
- yaffs_UnpackTags2(tags, &pt);
+ } else {
+ if (tags) {
+ 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)
- tags->eccResult = YAFFS_ECC_RESULT_UNFIXED;
+ if (localData)
+ yaffs_ReleaseTempBuffer(dev, data, __LINE__);
+
+ 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
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;
}
int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
- yaffs_BlockState * state, __u32 *sequenceNumber)
+ 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)));
yaffs_ExtendedTags t;
nandmtd2_ReadChunkWithTagsFromNAND(dev,
blockNo *
- dev->nChunksPerBlock, NULL,
+ dev->param.nChunksPerBlock, NULL,
&t);
if (t.chunkUsed) {
projects / yaffs2.git / blobdiff