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Add first cut of python bindings
[yaffs2.git]
/
yaffs_mtdif1.c
diff --git
a/yaffs_mtdif1.c
b/yaffs_mtdif1.c
index 2aad44ef1541f35c6defcbf7f4050c54efcfaa9d..00fa4f2122e9e6148e1c86a629bef0b15a9be34e 100644
(file)
--- a/
yaffs_mtdif1.c
+++ b/
yaffs_mtdif1.c
@@
-26,7
+26,7
@@
#include "yportenv.h"
#include "yaffs_guts.h"
#include "yaffs_packedtags1.h"
#include "yportenv.h"
#include "yaffs_guts.h"
#include "yaffs_packedtags1.h"
-#include "yaffs_tagscompat.h" /
/ for yaffs_CalcTagsECC
+#include "yaffs_tagscompat.h" /
* for yaffs_CalcTagsECC */
#include "linux/kernel.h"
#include "linux/version.h"
#include "linux/kernel.h"
#include "linux/version.h"
@@
-34,9
+34,9
@@
#include "linux/mtd/mtd.h"
/* Don't compile this module if we don't have MTD's mtd_oob_ops interface */
#include "linux/mtd/mtd.h"
/* Don't compile this module if we don't have MTD's mtd_oob_ops interface */
-#if (MTD_VERSION_CODE > MTD_VERSION(2,
6,
17))
+#if (MTD_VERSION_CODE > MTD_VERSION(2,
6,
17))
-const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.
8 2008-07-23 03:35:12
charles Exp $";
+const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.
11 2009-09-09 03:03:01
charles Exp $";
#ifndef CONFIG_YAFFS_9BYTE_TAGS
# define YTAG1_SIZE 8
#ifndef CONFIG_YAFFS_9BYTE_TAGS
# define YTAG1_SIZE 8
@@
-89,9
+89,9
@@
static struct nand_ecclayout nand_oob_16 = {
* Returns YAFFS_OK or YAFFS_FAIL.
*/
int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev,
* Returns YAFFS_OK or YAFFS_FAIL.
*/
int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev,
- int chunkInNAND, const __u8 *
data, const yaffs_ExtendedTags *
etags)
+ int chunkInNAND, const __u8 *
data, const yaffs_ExtendedTags *
etags)
{
{
- struct mtd_info *
mtd = dev->genericDevice;
+ struct mtd_info *mtd = dev->genericDevice;
int chunkBytes = dev->nDataBytesPerChunk;
loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
struct mtd_oob_ops ops;
int chunkBytes = dev->nDataBytesPerChunk;
loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
struct mtd_oob_ops ops;
@@
-102,8
+102,6
@@
int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev,
compile_time_assertion(sizeof(yaffs_PackedTags1) == 12);
compile_time_assertion(sizeof(yaffs_Tags) == 8);
compile_time_assertion(sizeof(yaffs_PackedTags1) == 12);
compile_time_assertion(sizeof(yaffs_Tags) == 8);
- dev->nPageWrites++;
-
yaffs_PackTags1(&pt1, etags);
yaffs_CalcTagsECC((yaffs_Tags *)&pt1);
yaffs_PackTags1(&pt1, etags);
yaffs_CalcTagsECC((yaffs_Tags *)&pt1);
@@
-146,7
+144,7
@@
int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev,
/* Return with empty ExtendedTags but add eccResult.
*/
/* Return with empty ExtendedTags but add eccResult.
*/
-static int rettags(yaffs_ExtendedTags *
etags, int eccResult, int retval)
+static int rettags(yaffs_ExtendedTags *etags, int eccResult, int retval)
{
if (etags) {
memset(etags, 0, sizeof(*etags));
{
if (etags) {
memset(etags, 0, sizeof(*etags));
@@
-169,9
+167,9
@@
static int rettags(yaffs_ExtendedTags * etags, int eccResult, int retval)
* Returns YAFFS_OK or YAFFS_FAIL.
*/
int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev,
* Returns YAFFS_OK or YAFFS_FAIL.
*/
int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev,
- int chunkInNAND, __u8 *
data, yaffs_ExtendedTags *
etags)
+ int chunkInNAND, __u8 *
data, yaffs_ExtendedTags *
etags)
{
{
- struct mtd_info *
mtd = dev->genericDevice;
+ struct mtd_info *mtd = dev->genericDevice;
int chunkBytes = dev->nDataBytesPerChunk;
loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
int eccres = YAFFS_ECC_RESULT_NO_ERROR;
int chunkBytes = dev->nDataBytesPerChunk;
loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
int eccres = YAFFS_ECC_RESULT_NO_ERROR;
@@
-180,8
+178,6
@@
int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev,
int retval;
int deleted;
int retval;
int deleted;
- dev->nPageReads++;
-
memset(&ops, 0, sizeof(ops));
ops.mode = MTD_OOB_AUTO;
ops.len = (data) ? chunkBytes : 0;
memset(&ops, 0, sizeof(ops));
ops.mode = MTD_OOB_AUTO;
ops.len = (data) ? chunkBytes : 0;
@@
-189,7
+185,7
@@
int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev,
ops.datbuf = data;
ops.oobbuf = (__u8 *)&pt1;
ops.datbuf = data;
ops.oobbuf = (__u8 *)&pt1;
-#if (MTD_VERSION_CODE < MTD_VERSION(2,
6,
20))
+#if (MTD_VERSION_CODE < MTD_VERSION(2,
6,
20))
/* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug;
* help it out with ops.len = ops.ooblen when ops.datbuf == NULL.
*/
/* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug;
* help it out with ops.len = ops.ooblen when ops.datbuf == NULL.
*/
@@
-284,7
+280,7
@@
int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev,
*/
int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
{
*/
int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
{
- struct mtd_info *
mtd = dev->genericDevice;
+ struct mtd_info *mtd = dev->genericDevice;
int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk;
int retval;
int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk;
int retval;
@@
-298,7
+294,7
@@
int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
*
* Returns YAFFS_OK or YAFFS_FAIL.
*/
*
* Returns YAFFS_OK or YAFFS_FAIL.
*/
-static int nandmtd1_TestPrerequists(struct mtd_info *
mtd)
+static int nandmtd1_TestPrerequists(struct mtd_info *mtd)
{
/* 2.6.18 has mtd->ecclayout->oobavail */
/* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */
{
/* 2.6.18 has mtd->ecclayout->oobavail */
/* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */
@@
-323,9
+319,9
@@
static int nandmtd1_TestPrerequists(struct mtd_info * mtd)
* Always returns YAFFS_OK.
*/
int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
* Always returns YAFFS_OK.
*/
int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
- yaffs_BlockState *
pState, __u32 *pSequenceNumber)
+ yaffs_BlockState *pState, __u32 *pSequenceNumber)
{
{
- struct mtd_info *
mtd = dev->genericDevice;
+ struct mtd_info *mtd = dev->genericDevice;
int chunkNo = blockNo * dev->nChunksPerBlock;
loff_t addr = (loff_t)chunkNo * dev->nDataBytesPerChunk;
yaffs_ExtendedTags etags;
int chunkNo = blockNo * dev->nChunksPerBlock;
loff_t addr = (loff_t)chunkNo * dev->nDataBytesPerChunk;
yaffs_ExtendedTags etags;
@@
-336,9
+332,8
@@
int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
/* We don't yet have a good place to test for MTD config prerequists.
* Do it here as we are called during the initial scan.
*/
/* We don't yet have a good place to test for MTD config prerequists.
* Do it here as we are called during the initial scan.
*/
- if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK)
{
+ if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK)
return YAFFS_FAIL;
return YAFFS_FAIL;
- }
retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags);
etags.blockBad = (mtd->block_isbad)(mtd, addr);
retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags);
etags.blockBad = (mtd->block_isbad)(mtd, addr);
@@
-346,16
+341,13
@@
int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
yaffs_trace(YAFFS_TRACE_BAD_BLOCKS,
"block %d is marked bad\n", blockNo);
state = YAFFS_BLOCK_STATE_DEAD;
yaffs_trace(YAFFS_TRACE_BAD_BLOCKS,
"block %d is marked bad\n", blockNo);
state = YAFFS_BLOCK_STATE_DEAD;
- }
- else if (etags.eccResult != YAFFS_ECC_RESULT_NO_ERROR) {
+ } else if (etags.eccResult != YAFFS_ECC_RESULT_NO_ERROR) {
/* bad tags, need to look more closely */
state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
/* bad tags, need to look more closely */
state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
- }
- else if (etags.chunkUsed) {
+ } else if (etags.chunkUsed) {
state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
seqnum = etags.sequenceNumber;
state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
seqnum = etags.sequenceNumber;
- }
- else {
+ } else {
state = YAFFS_BLOCK_STATE_EMPTY;
}
state = YAFFS_BLOCK_STATE_EMPTY;
}