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Diffstat (limited to 'fs/yaffs2/yaffs_mtdif.c')
-rw-r--r--fs/yaffs2/yaffs_mtdif.c175
1 files changed, 47 insertions, 128 deletions
diff --git a/fs/yaffs2/yaffs_mtdif.c b/fs/yaffs2/yaffs_mtdif.c
index d0e16d088e..db49052b38 100644
--- a/fs/yaffs2/yaffs_mtdif.c
+++ b/fs/yaffs2/yaffs_mtdif.c
@@ -14,9 +14,6 @@
/* XXX U-BOOT XXX */
#include <common.h>
-const char *yaffs_mtdif_c_version =
- "$Id: yaffs_mtdif.c,v 1.19 2007/02/14 01:09:06 wookey Exp $";
-
#include "yportenv.h"
@@ -27,72 +24,56 @@ const char *yaffs_mtdif_c_version =
#include "linux/time.h"
#include "linux/mtd/nand.h"
-#if (LINUX_VERSION_CODE < KERNEL_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 (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
-static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob)
+static inline void translate_spare2oob(const struct 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;
+ oob[0] = spare->tb0;
+ oob[1] = spare->tb1;
+ oob[2] = spare->tb2;
+ oob[3] = spare->tb3;
+ oob[4] = spare->tb4;
+ oob[5] = spare->tb5 & 0x3f;
+ oob[5] |= spare->block_status == 'Y' ? 0 : 0x80;
+ oob[5] |= spare->page_status == 0 ? 0 : 0x40;
+ oob[6] = spare->tb6;
+ oob[7] = spare->tb7;
}
-static inline void translate_oob2spare(yaffs_Spare *spare, __u8 *oob)
+static inline void translate_oob2spare(struct 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;
+ struct yaffs_nand_spare *nspare = (struct yaffs_nand_spare *)spare;
+ spare->tb0 = oob[0];
+ spare->tb1 = oob[1];
+ spare->tb2 = oob[2];
+ spare->tb3 = oob[3];
+ spare->tb4 = oob[4];
+ spare->tb5 = oob[5] == 0xff ? 0xff : oob[5] & 0x3f;
+ spare->block_status = oob[5] & 0x80 ? 0xff : 'Y';
+ spare->page_status = oob[5] & 0x40 ? 0xff : 0;
spare->ecc1[0] = spare->ecc1[1] = spare->ecc1[2] = 0xff;
- spare->tagByte6 = oob[6];
- spare->tagByte7 = oob[7];
+ spare->tb6 = oob[6];
+ spare->tb7 = oob[7];
spare->ecc2[0] = spare->ecc2[1] = spare->ecc2[2] = 0xff;
nspare->eccres1 = nspare->eccres2 = 0; /* FIXME */
}
-#endif
-int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND,
- const __u8 * data, const yaffs_Spare * spare)
+
+int nandmtd_WriteChunkToNAND(struct yaffs_dev *dev, int chunkInNAND,
+ const u8 *data, const struct yaffs_spare *spare)
{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+ struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
struct mtd_oob_ops ops;
-#endif
size_t dummy;
int retval = 0;
-
- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
- __u8 spareAsBytes[8]; /* OOB */
+ loff_t addr = ((loff_t) chunkInNAND) * dev->data_bytes_per_chunk;
+ u8 spareAsBytes[8]; /* OOB */
if (data && !spare)
- retval = mtd->write(mtd, addr, dev->nDataBytesPerChunk,
+ retval = mtd->write(mtd, addr, dev->data_bytes_per_chunk,
&dummy, data);
else if (spare) {
- if (dev->useNANDECC) {
+ if (dev->param.use_nand_ecc) {
translate_spare2oob(spare, spareAsBytes);
ops.mode = MTD_OOB_AUTO;
ops.ooblen = 8; /* temp hack */
@@ -100,37 +81,12 @@ int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND,
ops.mode = MTD_OOB_RAW;
ops.ooblen = YAFFS_BYTES_PER_SPARE;
}
- ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen;
+ ops.len = data ? dev->data_bytes_per_chunk : 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;
@@ -138,69 +94,36 @@ int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND,
return YAFFS_FAIL;
}
-int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data,
- yaffs_Spare * spare)
+int nandmtd_ReadChunkFromNAND(struct yaffs_dev *dev, int chunkInNAND, u8 *data,
+ struct yaffs_spare *spare)
{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+ struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
struct mtd_oob_ops ops;
-#endif
size_t dummy;
int retval = 0;
- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
- __u8 spareAsBytes[8]; /* OOB */
+ loff_t addr = ((loff_t) chunkInNAND) * dev->data_bytes_per_chunk;
+ u8 spareAsBytes[8]; /* OOB */
if (data && !spare)
- retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk,
+ retval = mtd->read(mtd, addr, dev->data_bytes_per_chunk,
&dummy, data);
else if (spare) {
- if (dev->useNANDECC) {
+ if (dev->param.use_nand_ecc) {
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.len = data ? dev->data_bytes_per_chunk : ops.ooblen;
ops.datbuf = data;
ops.ooboffs = 0;
ops.oobbuf = spareAsBytes;
retval = mtd->read_oob(mtd, addr, &ops);
- if (dev->useNANDECC)
+ if (dev->param.use_nand_ecc)
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;
@@ -208,18 +131,18 @@ int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data,
return YAFFS_FAIL;
}
-int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber)
+int nandmtd_EraseBlockInNAND(struct yaffs_dev *dev, int blockNumber)
{
- struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+ struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context);
__u32 addr =
- ((loff_t) blockNumber) * dev->nDataBytesPerChunk
- * dev->nChunksPerBlock;
+ ((loff_t) blockNumber) * dev->data_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->data_bytes_per_chunk * dev->param.chunks_per_block;
ei.time = 1000;
ei.retries = 2;
ei.callback = NULL;
@@ -227,10 +150,6 @@ int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber)
/* Todo finish off the ei if required */
-/* XXX U-BOOT XXX */
-#if 0
- sema_init(&dev->sem, 0);
-#endif
retval = mtd->erase(mtd, &ei);
@@ -240,7 +159,7 @@ int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber)
return YAFFS_FAIL;
}
-int nandmtd_InitialiseNAND(yaffs_Device * dev)
+int nandmtd_InitialiseNAND(struct yaffs_dev *dev)
{
return YAFFS_OK;
}
generated by cgit (git 2.34.1) at 2024-12-23 05:34:07 +0000