/*
- * YAFFS: Yet another FFS. A NAND-flash specific file system.
- * yaffs_mtdif.c NAND mtd wrapper functions.
+ * 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>
* 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.
- *
*/
/* mtd interface for YAFFS2 */
const char *yaffs_mtdif2_c_version =
- "$Id: yaffs_mtdif2.c,v 1.11 2006-04-25 00:41:43 wookey Exp $";
+ "$Id: yaffs_mtdif2.c,v 1.17 2007-02-14 01:09:06 wookey Exp $";
#include "yportenv.h"
const yaffs_ExtendedTags * tags)
{
struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+ struct mtd_oob_ops ops;
+#else
size_t dummy;
+#endif
int retval = 0;
- loff_t addr = ((loff_t) chunkInNAND) * dev->nBytesPerChunk;
+ loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
yaffs_PackedTags2 pt;
("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p"
TENDSTR), chunkInNAND, data, tags));
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+ if (tags)
+ yaffs_PackTags2(&pt, tags);
+ else
+ BUG(); /* both tags and data should always be present */
+
+ if (data) {
+ ops.mode = MTD_OOB_AUTO;
+ ops.ooblen = sizeof(pt);
+ ops.len = dev->nDataBytesPerChunk;
+ ops.ooboffs = 0;
+ ops.datbuf = (__u8 *)data;
+ ops.oobbuf = (void *)&pt;
+ retval = mtd->write_oob(mtd, addr, &ops);
+ } else
+ BUG(); /* both tags and data should always be present */
+#else
if (tags) {
yaffs_PackTags2(&pt, tags);
}
if (data && tags) {
if (dev->useNANDECC)
retval =
- mtd->write_ecc(mtd, addr, dev->nBytesPerChunk,
+ mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, (__u8 *) & pt, NULL);
else
retval =
- mtd->write_ecc(mtd, addr, dev->nBytesPerChunk,
+ mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, (__u8 *) & pt, NULL);
} else {
if (data)
retval =
- mtd->write(mtd, addr, dev->nBytesPerChunk, &dummy,
+ mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy,
data);
if (tags)
retval =
(__u8 *) & pt);
}
+#endif
if (retval == 0)
return YAFFS_OK;
__u8 * data, yaffs_ExtendedTags * tags)
{
struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+ struct mtd_oob_ops ops;
+#endif
size_t dummy;
int retval = 0;
- loff_t addr = ((loff_t) chunkInNAND) * dev->nBytesPerChunk;
+ loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
yaffs_PackedTags2 pt;
("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p"
TENDSTR), chunkInNAND, data, tags));
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+ if (data && !tags)
+ retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk,
+ &dummy, data);
+ else if (tags) {
+ ops.mode = MTD_OOB_AUTO;
+ ops.ooblen = sizeof(pt);
+ ops.len = data ? dev->nDataBytesPerChunk : sizeof(pt);
+ ops.ooboffs = 0;
+ ops.datbuf = data;
+ ops.oobbuf = dev->spareBuffer;
+ retval = mtd->read_oob(mtd, addr, &ops);
+ }
+#else
if (data && tags) {
if (dev->useNANDECC) {
retval =
- mtd->read_ecc(mtd, addr, dev->nBytesPerChunk,
+ mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, dev->spareBuffer,
NULL);
} else {
retval =
- mtd->read_ecc(mtd, addr, dev->nBytesPerChunk,
+ mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, dev->spareBuffer,
NULL);
}
} else {
if (data)
retval =
- mtd->read(mtd, addr, dev->nBytesPerChunk, &dummy,
+ mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy,
data);
if (tags)
retval =
mtd->read_oob(mtd, addr, mtd->oobsize, &dummy,
dev->spareBuffer);
}
+#endif
memcpy(&pt, dev->spareBuffer, sizeof(pt));
if (tags)
yaffs_UnpackTags2(tags, &pt);
+
+ if(tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR)
+ tags->eccResult = YAFFS_ECC_RESULT_UNFIXED;
if (retval == 0)
return YAFFS_OK;
retval =
mtd->block_markbad(mtd,
blockNo * dev->nChunksPerBlock *
- dev->nBytesPerChunk);
+ dev->nDataBytesPerChunk);
if (retval == 0)
return YAFFS_OK;
retval =
mtd->block_isbad(mtd,
blockNo * dev->nChunksPerBlock *
- dev->nBytesPerChunk);
+ dev->nDataBytesPerChunk);
if (retval) {
T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR)));