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Diffstat (limited to 'target/linux/generic/files/fs/yaffs2/yaffs_mtdif.c')
-rw-r--r--target/linux/generic/files/fs/yaffs2/yaffs_mtdif.c203
1 files changed, 9 insertions, 194 deletions
diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif.c b/target/linux/generic/files/fs/yaffs2/yaffs_mtdif.c
index 306e18839e..b2d4318e66 100644
--- a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif.c
+++ b/target/linux/generic/files/fs/yaffs2/yaffs_mtdif.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>
@@ -11,9 +11,6 @@
* published by the Free Software Foundation.
*/
-const char *yaffs_mtdif_c_version =
- "$Id: yaffs_mtdif.c,v 1.22 2009-03-06 17:20:51 wookey Exp $";
-
#include "yportenv.h"
@@ -24,208 +21,26 @@ const char *yaffs_mtdif_c_version =
#include "linux/time.h"
#include "linux/mtd/nand.h"
-#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18))
-static struct nand_oobinfo yaffs_oobinfo = {
- .useecc = 1,
- .eccbytes = 6,
- .eccpos = {8, 9, 10, 13, 14, 15}
-};
-
-static struct nand_oobinfo yaffs_noeccinfo = {
- .useecc = 0,
-};
-#endif
-
-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
-static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob)
-{
- oob[0] = spare->tagByte0;
- oob[1] = spare->tagByte1;
- oob[2] = spare->tagByte2;
- oob[3] = spare->tagByte3;
- oob[4] = spare->tagByte4;
- oob[5] = spare->tagByte5 & 0x3f;
- oob[5] |= spare->blockStatus == 'Y' ? 0 : 0x80;
- oob[5] |= spare->pageStatus == 0 ? 0 : 0x40;
- oob[6] = spare->tagByte6;
- oob[7] = spare->tagByte7;
-}
-
-static inline void translate_oob2spare(yaffs_Spare *spare, __u8 *oob)
-{
- struct yaffs_NANDSpare *nspare = (struct yaffs_NANDSpare *)spare;
- spare->tagByte0 = oob[0];
- spare->tagByte1 = oob[1];
- spare->tagByte2 = oob[2];
- spare->tagByte3 = oob[3];
- spare->tagByte4 = oob[4];
- spare->tagByte5 = oob[5] == 0xff ? 0xff : oob[5] & 0x3f;
- spare->blockStatus = oob[5] & 0x80 ? 0xff : 'Y';
- spare->pageStatus = oob[5] & 0x40 ? 0xff : 0;
- spare->ecc1[0] = spare->ecc1[1] = spare->ecc1[2] = 0xff;
- spare->tagByte6 = oob[6];
- spare->tagByte7 = oob[7];
- spare->ecc2[0] = spare->ecc2[1] = spare->ecc2[2] = 0xff;
-
- nspare->eccres1 = nspare->eccres2 = 0; /* FIXME */
-}
-#endif
+#include "yaffs_linux.h"
-int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND,
- const __u8 *data, const yaffs_Spare *spare)
+int nandmtd_EraseBlockInNAND(yaffs_dev_t *dev, int blockNumber)
{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
- struct mtd_oob_ops ops;
-#endif
- size_t dummy;
- int retval = 0;
-
- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
- __u8 spareAsBytes[8]; /* OOB */
-
- if (data && !spare)
- retval = mtd->write(mtd, addr, dev->nDataBytesPerChunk,
- &dummy, data);
- else if (spare) {
- if (dev->useNANDECC) {
- translate_spare2oob(spare, spareAsBytes);
- ops.mode = MTD_OOB_AUTO;
- ops.ooblen = 8; /* temp hack */
- } else {
- ops.mode = MTD_OOB_RAW;
- ops.ooblen = YAFFS_BYTES_PER_SPARE;
- }
- ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen;
- ops.datbuf = (u8 *)data;
- ops.ooboffs = 0;
- ops.oobbuf = spareAsBytes;
- retval = mtd->write_oob(mtd, addr, &ops);
- }
-#else
- __u8 *spareAsBytes = (__u8 *) spare;
-
- if (data && spare) {
- if (dev->useNANDECC)
- retval =
- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
- &dummy, data, spareAsBytes,
- &yaffs_oobinfo);
- else
- retval =
- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
- &dummy, data, spareAsBytes,
- &yaffs_noeccinfo);
- } else {
- if (data)
- retval =
- mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy,
- data);
- if (spare)
- retval =
- mtd->write_oob(mtd, addr, YAFFS_BYTES_PER_SPARE,
- &dummy, spareAsBytes);
- }
-#endif
-
- if (retval == 0)
- return YAFFS_OK;
- else
- return YAFFS_FAIL;
-}
-
-int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data,
- yaffs_Spare *spare)
-{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
- struct mtd_oob_ops ops;
-#endif
- size_t dummy;
- int retval = 0;
-
- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
- __u8 spareAsBytes[8]; /* OOB */
-
- if (data && !spare)
- retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk,
- &dummy, data);
- else if (spare) {
- if (dev->useNANDECC) {
- ops.mode = MTD_OOB_AUTO;
- ops.ooblen = 8; /* temp hack */
- } else {
- ops.mode = MTD_OOB_RAW;
- ops.ooblen = YAFFS_BYTES_PER_SPARE;
- }
- ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen;
- ops.datbuf = data;
- ops.ooboffs = 0;
- ops.oobbuf = spareAsBytes;
- retval = mtd->read_oob(mtd, addr, &ops);
- if (dev->useNANDECC)
- translate_oob2spare(spare, spareAsBytes);
- }
-#else
- __u8 *spareAsBytes = (__u8 *) spare;
-
- if (data && spare) {
- if (dev->useNANDECC) {
- /* Careful, this call adds 2 ints */
- /* to the end of the spare data. Calling function */
- /* should allocate enough memory for spare, */
- /* i.e. [YAFFS_BYTES_PER_SPARE+2*sizeof(int)]. */
- retval =
- mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
- &dummy, data, spareAsBytes,
- &yaffs_oobinfo);
- } else {
- retval =
- mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
- &dummy, data, spareAsBytes,
- &yaffs_noeccinfo);
- }
- } else {
- if (data)
- retval =
- mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy,
- data);
- if (spare)
- retval =
- mtd->read_oob(mtd, addr, YAFFS_BYTES_PER_SPARE,
- &dummy, spareAsBytes);
- }
-#endif
-
- if (retval == 0)
- return YAFFS_OK;
- else
- return YAFFS_FAIL;
-}
-
-int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
-{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+ struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
__u32 addr =
- ((loff_t) blockNumber) * dev->nDataBytesPerChunk
- * dev->nChunksPerBlock;
+ ((loff_t) blockNumber) * dev->param.total_bytes_per_chunk
+ * dev->param.chunks_per_block;
struct erase_info ei;
+
int retval = 0;
ei.mtd = mtd;
ei.addr = addr;
- ei.len = dev->nDataBytesPerChunk * dev->nChunksPerBlock;
+ ei.len = dev->param.total_bytes_per_chunk * dev->param.chunks_per_block;
ei.time = 1000;
ei.retries = 2;
ei.callback = NULL;
ei.priv = (u_long) dev;
- /* Todo finish off the ei if required */
-
- sema_init(&dev->sem, 0);
-
retval = mtd->erase(mtd, &ei);
if (retval == 0)
@@ -234,7 +49,7 @@ int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
return YAFFS_FAIL;
}
-int nandmtd_InitialiseNAND(yaffs_Device *dev)
+int nandmtd_InitialiseNAND(yaffs_dev_t *dev)
{
return YAFFS_OK;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-30 00:45:03 +0000