Rationalise context and parameter handling

[yaffs2.git] / yaffs_mtdif.c

diff --git a/yaffs_mtdif.c b/yaffs_mtdif.c
index 4888b96f6d168dfce94f44766c1db617d2ddb8db..25d92ed6347bf36007767b5d2f3dfe9943eb5af2 100644 (file)
--- a/yaffs_mtdif.c
+++ b/yaffs_mtdif.c
@@ -12,7 +12,7 @@
  */
 
 const char *yaffs_mtdif_c_version =
-    "$Id: yaffs_mtdif.c,v 1.21 2007-12-13 15:35:18 wookey Exp $";
+       "$Id: yaffs_mtdif.c,v 1.23 2010-02-18 01:18:04 charles Exp $";
 
 #include "yportenv.h"
 
@@ -24,7 +24,9 @@ const char *yaffs_mtdif_c_version =
 #include "linux/time.h"
 #include "linux/mtd/nand.h"
 
-#if (MTD_VERSION_CODE < MTD_VERSION(2,6,18))
+#include "yaffs_linux.h"
+
+#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18))
 static struct nand_oobinfo yaffs_oobinfo = {
        .useecc = 1,
        .eccbytes = 6,
@@ -36,7 +38,7 @@ static struct nand_oobinfo yaffs_noeccinfo = {
 };
 #endif
 
-#if (MTD_VERSION_CODE > MTD_VERSION(2,6,17))
+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
 static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob)
 {
        oob[0] = spare->tagByte0;
@@ -45,8 +47,8 @@ static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob)
        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[5] |= spare->blockStatus == 'Y' ? 0 : 0x80;
+       oob[5] |= spare->pageStatus == 0 ? 0 : 0x40;
        oob[6] = spare->tagByte6;
        oob[7] = spare->tagByte7;
 }
@@ -71,25 +73,25 @@ static inline void translate_oob2spare(yaffs_Spare *spare, __u8 *oob)
 }
 #endif
 
-int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND,
-                            const __u8 * data, const yaffs_Spare * spare)
+int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND,
+                            const __u8 *data, const yaffs_Spare *spare)
 {
-       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;
 
        loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
-#if (MTD_VERSION_CODE > MTD_VERSION(2,6,17))
+#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) {
+               if (dev->param.useNANDECC) {
                        translate_spare2oob(spare, spareAsBytes);
                        ops.mode = MTD_OOB_AUTO;
                        ops.ooblen = 8; /* temp hack */
@@ -107,7 +109,7 @@ int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND,
        __u8 *spareAsBytes = (__u8 *) spare;
 
        if (data && spare) {
-               if (dev->useNANDECC)
+               if (dev->param.useNANDECC)
                        retval =
                            mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
                                           &dummy, data, spareAsBytes,
@@ -135,25 +137,25 @@ 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(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_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;
 
        loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
-#if (MTD_VERSION_CODE > MTD_VERSION(2,6,17))
+#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) {
+               if (dev->param.useNANDECC) {
                        ops.mode = MTD_OOB_AUTO;
                        ops.ooblen = 8; /* temp hack */
                } else {
@@ -165,14 +167,14 @@ int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data,
                ops.ooboffs = 0;
                ops.oobbuf = spareAsBytes;
                retval = mtd->read_oob(mtd, addr, &ops);
-               if (dev->useNANDECC)
+               if (dev->param.useNANDECC)
                        translate_oob2spare(spare, spareAsBytes);
        }
 #else
        __u8 *spareAsBytes = (__u8 *) spare;
 
        if (data && spare) {
-               if (dev->useNANDECC) {
+               if (dev->param.useNANDECC) {
                        /* Careful, this call adds 2 ints */
                        /* to the end of the spare data.  Calling function */
                        /* should allocate enough memory for spare, */
@@ -205,27 +207,24 @@ int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data,
                return YAFFS_FAIL;
 }
 
-int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber)
+int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
 {
-       struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+       struct mtd_info *mtd = yaffs_DeviceToContext(dev)->mtd;
        __u32 addr =
            ((loff_t) blockNumber) * dev->nDataBytesPerChunk
-               * dev->nChunksPerBlock;
+               * dev->param.nChunksPerBlock;
        struct erase_info ei;
+       
        int retval = 0;
 
        ei.mtd = mtd;
        ei.addr = addr;
-       ei.len = dev->nDataBytesPerChunk * dev->nChunksPerBlock;
+       ei.len = dev->nDataBytesPerChunk * dev->param.nChunksPerBlock;
        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 +233,7 @@ int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber)
                return YAFFS_FAIL;
 }
 
-int nandmtd_InitialiseNAND(yaffs_Device * dev)
+int nandmtd_InitialiseNAND(yaffs_Device *dev)
 {
        return YAFFS_OK;
 }