drivers/staging/keucr/msscsi.c - linux - Git at Google

 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

 #include <linux/sched.h>
 #include <linux/errno.h>
 #include <linux/slab.h>

 #include <scsi/scsi.h>
 #include <scsi/scsi_eh.h>
 #include <scsi/scsi_device.h>

 #include "usb.h"
 #include "scsiglue.h"
 #include "transport.h"

 /*
  * MS_SCSI_Test_Unit_Ready()
  */
 int MS_SCSI_Test_Unit_Ready(struct us_data *us, struct scsi_cmnd *srb)
 {
 	/* pr_info("MS_SCSI_Test_Unit_Ready\n"); */
 	if (us->MS_Status.Insert && us->MS_Status.Ready)
 		return USB_STOR_TRANSPORT_GOOD;
 	else {
 		ENE_MSInit(us);
 		return USB_STOR_TRANSPORT_GOOD;
 	}

 	return USB_STOR_TRANSPORT_GOOD;
 }

 /*
  * MS_SCSI_Inquiry()
  */
 int MS_SCSI_Inquiry(struct us_data *us, struct scsi_cmnd *srb)
 {
 	/* pr_info("MS_SCSI_Inquiry\n"); */
 	BYTE data_ptr[36] = {0x00, 0x80, 0x02, 0x00, 0x1F, 0x00,
 				0x00, 0x00, 0x55, 0x53, 0x42, 0x32,
 				0x2E, 0x30, 0x20, 0x20, 0x43, 0x61,
 				0x72, 0x64, 0x52, 0x65, 0x61, 0x64,
 				0x65, 0x72, 0x20, 0x20, 0x20, 0x20,
 				0x20, 0x20, 0x30, 0x31, 0x30, 0x30};

 	usb_stor_set_xfer_buf(us, data_ptr, 36, srb, TO_XFER_BUF);
 	return USB_STOR_TRANSPORT_GOOD;
 }

 /*
  * MS_SCSI_Mode_Sense()
  */
 int MS_SCSI_Mode_Sense(struct us_data *us, struct scsi_cmnd *srb)
 {
 	BYTE	mediaNoWP[12] = {0x0b, 0x00, 0x00, 0x08, 0x00, 0x00,
 					0x71, 0xc0, 0x00, 0x00, 0x02, 0x00};
 	BYTE	mediaWP[12]   = {0x0b, 0x00, 0x80, 0x08, 0x00, 0x00,
 					0x71, 0xc0, 0x00, 0x00, 0x02, 0x00};

 	if (us->MS_Status.WtP)
 		usb_stor_set_xfer_buf(us, mediaWP, 12, srb, TO_XFER_BUF);
 	else
 		usb_stor_set_xfer_buf(us, mediaNoWP, 12, srb, TO_XFER_BUF);


 	return USB_STOR_TRANSPORT_GOOD;
 }

 /*
  * MS_SCSI_Read_Capacity()
  */
 int MS_SCSI_Read_Capacity(struct us_data *us, struct scsi_cmnd *srb)
 {
 	unsigned int offset = 0;
 	struct scatterlist *sg = NULL;
 	DWORD   bl_num;
 	WORD    bl_len;
 	BYTE    buf[8];

 	pr_info("MS_SCSI_Read_Capacity\n");

 	bl_len = 0x200;
 	if (us->MS_Status.IsMSPro)
 		bl_num = us->MSP_TotalBlock - 1;
 	else
 		bl_num = us->MS_Lib.NumberOfLogBlock *
 				us->MS_Lib.blockSize * 2 - 1;

 	us->bl_num = bl_num;
 	pr_info("bl_len = %x\n", bl_len);
 	pr_info("bl_num = %x\n", bl_num);

 	/* srb->request_bufflen = 8; */
 	buf[0] = (bl_num >> 24) & 0xff;
 	buf[1] = (bl_num >> 16) & 0xff;
 	buf[2] = (bl_num >> 8) & 0xff;
 	buf[3] = (bl_num >> 0) & 0xff;
 	buf[4] = (bl_len >> 24) & 0xff;
 	buf[5] = (bl_len >> 16) & 0xff;
 	buf[6] = (bl_len >> 8) & 0xff;
 	buf[7] = (bl_len >> 0) & 0xff;

 	usb_stor_access_xfer_buf(us, buf, 8, srb, &sg, &offset, TO_XFER_BUF);
 	/* usb_stor_set_xfer_buf(us, buf, srb->request_bufflen,
 						srb, TO_XFER_BUF); */

 	return USB_STOR_TRANSPORT_GOOD;
 }

 /*
  * MS_SCSI_Read()
  */
 int MS_SCSI_Read(struct us_data *us, struct scsi_cmnd *srb)
 {
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 	int result = 0;
 	PBYTE	Cdb = srb->cmnd;
 	DWORD bn  =  ((Cdb[2] << 24) & 0xff000000) |
 			((Cdb[3] << 16) & 0x00ff0000) |
 			((Cdb[4] << 8) & 0x0000ff00) |
 			((Cdb[5] << 0) & 0x000000ff);
 	WORD  blen = ((Cdb[7] << 8) & 0xff00) | ((Cdb[8] << 0) & 0x00ff);
 	DWORD	blenByte = blen * 0x200;

 	/* pr_info("SCSIOP_READ --- bn = %X, blen = %X, srb->use_sg = %X\n",
 						bn, blen, srb->use_sg); */

 	if (bn > us->bl_num)
 		return USB_STOR_TRANSPORT_ERROR;

 	if (us->MS_Status.IsMSPro) {
 		result = ENE_LoadBinCode(us, MSP_RW_PATTERN);
 		if (result != USB_STOR_XFER_GOOD) {
 			pr_info("Load MSP RW pattern Fail !!\n");
 			return USB_STOR_TRANSPORT_ERROR;
 		}

 		/*  set up the command wrapper */
 		memset(bcb, 0, sizeof(struct bulk_cb_wrap));
 		bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
 		bcb->DataTransferLength = blenByte;
 		bcb->Flags  = 0x80;
 		bcb->CDB[0] = 0xF1;
 		bcb->CDB[1] = 0x02;
 		bcb->CDB[5] = (BYTE)(bn);
 		bcb->CDB[4] = (BYTE)(bn>>8);
 		bcb->CDB[3] = (BYTE)(bn>>16);
 		bcb->CDB[2] = (BYTE)(bn>>24);

 		result = ENE_SendScsiCmd(us, FDIR_READ, scsi_sglist(srb), 1);
 	} else {
 		void	*buf;
 		int	offset = 0;
 		WORD	phyblk, logblk;
 		BYTE	PageNum;
 		WORD	len;
 		DWORD	blkno;

 		buf = kmalloc(blenByte, GFP_KERNEL);
 		if (buf == NULL)
 			return USB_STOR_TRANSPORT_ERROR;

 		result = ENE_LoadBinCode(us, MS_RW_PATTERN);
 		if (result != USB_STOR_XFER_GOOD) {
 			pr_info("Load MS RW pattern Fail !!\n");
 			result = USB_STOR_TRANSPORT_ERROR;
 			goto exit;
 		}

 		logblk  = (WORD)(bn / us->MS_Lib.PagesPerBlock);
 		PageNum = (BYTE)(bn % us->MS_Lib.PagesPerBlock);

 		while (1) {
 			if (blen > (us->MS_Lib.PagesPerBlock-PageNum))
 				len = us->MS_Lib.PagesPerBlock-PageNum;
 			else
 				len = blen;

 			phyblk = MS_LibConv2Physical(us, logblk);
 			blkno  = phyblk * 0x20 + PageNum;

 			/* set up the command wrapper */
 			memset(bcb, 0, sizeof(struct bulk_cb_wrap));
 			bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
 			bcb->DataTransferLength = 0x200 * len;
 			bcb->Flags  = 0x80;
 			bcb->CDB[0] = 0xF1;
 			bcb->CDB[1] = 0x02;
 			bcb->CDB[5] = (BYTE)(blkno);
 			bcb->CDB[4] = (BYTE)(blkno>>8);
 			bcb->CDB[3] = (BYTE)(blkno>>16);
 			bcb->CDB[2] = (BYTE)(blkno>>24);

 			result = ENE_SendScsiCmd(us, FDIR_READ, buf+offset, 0);
 			if (result != USB_STOR_XFER_GOOD) {
 				pr_info("MS_SCSI_Read --- result = %x\n",
 								result);
 				result =  USB_STOR_TRANSPORT_ERROR;
 				goto exit;
 			}

 			blen -= len;
 			if (blen <= 0)
 				break;
 			logblk++;
 			PageNum = 0;
 			offset += MS_BYTES_PER_PAGE*len;
 		}
 		usb_stor_set_xfer_buf(us, buf, blenByte, srb, TO_XFER_BUF);
 exit:
 		kfree(buf);
 	}
 	return result;
 }

 /*
  * MS_SCSI_Write()
  */
 int MS_SCSI_Write(struct us_data *us, struct scsi_cmnd *srb)
 {
 	struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 	int result = 0;
 	PBYTE	Cdb = srb->cmnd;
 	DWORD bn  = ((Cdb[2] << 24) & 0xff000000) |
 			((Cdb[3] << 16) & 0x00ff0000) |
 			((Cdb[4] << 8) & 0x0000ff00) |
 			((Cdb[5] << 0) & 0x000000ff);
 	WORD  blen = ((Cdb[7] << 8) & 0xff00)     | ((Cdb[8] << 0) & 0x00ff);
 	DWORD	blenByte = blen * 0x200;

 	if (bn > us->bl_num)
 		return USB_STOR_TRANSPORT_ERROR;

 	if (us->MS_Status.IsMSPro) {
 		result = ENE_LoadBinCode(us, MSP_RW_PATTERN);
 		if (result != USB_STOR_XFER_GOOD) {
 			pr_info("Load MSP RW pattern Fail !!\n");
 			return USB_STOR_TRANSPORT_ERROR;
 		}

 		/* set up the command wrapper */
 		memset(bcb, 0, sizeof(struct bulk_cb_wrap));
 		bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
 		bcb->DataTransferLength = blenByte;
 		bcb->Flags  = 0x00;
 		bcb->CDB[0] = 0xF0;
 		bcb->CDB[1] = 0x04;
 		bcb->CDB[5] = (BYTE)(bn);
 		bcb->CDB[4] = (BYTE)(bn>>8);
 		bcb->CDB[3] = (BYTE)(bn>>16);
 		bcb->CDB[2] = (BYTE)(bn>>24);

 		result = ENE_SendScsiCmd(us, FDIR_WRITE, scsi_sglist(srb), 1);
 	} else {
 		void	*buf;
 		int	offset = 0;
 		WORD	PhyBlockAddr;
 		BYTE	PageNum;
 		DWORD	result;
 		WORD	len, oldphy, newphy;

 		buf = kmalloc(blenByte, GFP_KERNEL);
 		if (buf == NULL)
 			return USB_STOR_TRANSPORT_ERROR;
 		usb_stor_set_xfer_buf(us, buf, blenByte, srb, FROM_XFER_BUF);

 		result = ENE_LoadBinCode(us, MS_RW_PATTERN);
 		if (result != USB_STOR_XFER_GOOD) {
 			pr_info("Load MS RW pattern Fail !!\n");
 			result = USB_STOR_TRANSPORT_ERROR;
 			goto exit;
 		}

 		PhyBlockAddr = (WORD)(bn / us->MS_Lib.PagesPerBlock);
 		PageNum      = (BYTE)(bn % us->MS_Lib.PagesPerBlock);

 		while (1) {
 			if (blen > (us->MS_Lib.PagesPerBlock-PageNum))
 				len = us->MS_Lib.PagesPerBlock-PageNum;
 			else
 				len = blen;

 			oldphy = MS_LibConv2Physical(us, PhyBlockAddr);
 			newphy = MS_LibSearchBlockFromLogical(us, PhyBlockAddr);

 			result = MS_ReaderCopyBlock(us, oldphy, newphy,
 							PhyBlockAddr, PageNum,
 							buf+offset, len);
 			if (result != USB_STOR_XFER_GOOD) {
 				pr_info("MS_SCSI_Write --- result = %x\n",
 								result);
 				result =  USB_STOR_TRANSPORT_ERROR;
 				goto exit;
 			}

 			us->MS_Lib.Phy2LogMap[oldphy] = MS_LB_NOT_USED_ERASED;
 			MS_LibForceSetLogicalPair(us, PhyBlockAddr, newphy);

 			blen -= len;
 			if (blen <= 0)
 				break;
 			PhyBlockAddr++;
 			PageNum = 0;
 			offset += MS_BYTES_PER_PAGE*len;
 		}
 exit:
 		kfree(buf);
 	}
 	return result;
 }

 /*
  * MS_SCSIIrp()
  */
 int MS_SCSIIrp(struct us_data *us, struct scsi_cmnd *srb)
 {
 	int    result;

 	us->SrbStatus = SS_SUCCESS;
 	switch (srb->cmnd[0]) {
 	case TEST_UNIT_READY:
 		result = MS_SCSI_Test_Unit_Ready(us, srb);
 		break; /* 0x00 */
 	case INQUIRY:
 		result = MS_SCSI_Inquiry(us, srb);
 		break; /* 0x12 */
 	case MODE_SENSE:
 		result = MS_SCSI_Mode_Sense(us, srb);
 		break; /* 0x1A */
 	case READ_CAPACITY:
 		result = MS_SCSI_Read_Capacity(us, srb);
 		break; /* 0x25 */
 	case READ_10:
 		result = MS_SCSI_Read(us, srb);
 		break; /* 0x28 */
 	case WRITE_10:
 		result = MS_SCSI_Write(us, srb);
 		break;	/* 0x2A */
 	default:
 		us->SrbStatus = SS_ILLEGAL_REQUEST;
 		result = USB_STOR_TRANSPORT_FAILED;
 		break;
 	}
 	return result;
 }
	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

	#include <linux/sched.h>
	#include <linux/errno.h>
	#include <linux/slab.h>

	#include <scsi/scsi.h>
	#include <scsi/scsi_eh.h>
	#include <scsi/scsi_device.h>

	#include "usb.h"
	#include "scsiglue.h"
	#include "transport.h"

	/*
	* MS_SCSI_Test_Unit_Ready()
	*/
	int MS_SCSI_Test_Unit_Ready(struct us_data us, struct scsi_cmnd srb)
	{
	/* pr_info("MS_SCSI_Test_Unit_Ready\n"); */
	if (us->MS_Status.Insert && us->MS_Status.Ready)
	return USB_STOR_TRANSPORT_GOOD;
	else {
	ENE_MSInit(us);
	return USB_STOR_TRANSPORT_GOOD;
	}

	return USB_STOR_TRANSPORT_GOOD;
	}

	/*
	* MS_SCSI_Inquiry()
	*/
	int MS_SCSI_Inquiry(struct us_data us, struct scsi_cmnd srb)
	{
	/* pr_info("MS_SCSI_Inquiry\n"); */
	BYTE data_ptr[36] = {0x00, 0x80, 0x02, 0x00, 0x1F, 0x00,
	0x00, 0x00, 0x55, 0x53, 0x42, 0x32,
	0x2E, 0x30, 0x20, 0x20, 0x43, 0x61,
	0x72, 0x64, 0x52, 0x65, 0x61, 0x64,
	0x65, 0x72, 0x20, 0x20, 0x20, 0x20,
	0x20, 0x20, 0x30, 0x31, 0x30, 0x30};

	usb_stor_set_xfer_buf(us, data_ptr, 36, srb, TO_XFER_BUF);
	return USB_STOR_TRANSPORT_GOOD;
	}

	/*
	* MS_SCSI_Mode_Sense()
	*/
	int MS_SCSI_Mode_Sense(struct us_data us, struct scsi_cmnd srb)
	{
	BYTE mediaNoWP[12] = {0x0b, 0x00, 0x00, 0x08, 0x00, 0x00,
	0x71, 0xc0, 0x00, 0x00, 0x02, 0x00};
	BYTE mediaWP[12] = {0x0b, 0x00, 0x80, 0x08, 0x00, 0x00,
	0x71, 0xc0, 0x00, 0x00, 0x02, 0x00};

	if (us->MS_Status.WtP)
	usb_stor_set_xfer_buf(us, mediaWP, 12, srb, TO_XFER_BUF);
	else
	usb_stor_set_xfer_buf(us, mediaNoWP, 12, srb, TO_XFER_BUF);


	return USB_STOR_TRANSPORT_GOOD;
	}

	/*
	* MS_SCSI_Read_Capacity()
	*/
	int MS_SCSI_Read_Capacity(struct us_data us, struct scsi_cmnd srb)
	{
	unsigned int offset = 0;
	struct scatterlist *sg = NULL;
	DWORD bl_num;
	WORD bl_len;
	BYTE buf[8];

	pr_info("MS_SCSI_Read_Capacity\n");

	bl_len = 0x200;
	if (us->MS_Status.IsMSPro)
	bl_num = us->MSP_TotalBlock - 1;
	else
	bl_num = us->MS_Lib.NumberOfLogBlock *
	us->MS_Lib.blockSize * 2 - 1;

	us->bl_num = bl_num;
	pr_info("bl_len = %x\n", bl_len);
	pr_info("bl_num = %x\n", bl_num);

	/* srb->request_bufflen = 8; */
	buf[0] = (bl_num >> 24) & 0xff;
	buf[1] = (bl_num >> 16) & 0xff;
	buf[2] = (bl_num >> 8) & 0xff;
	buf[3] = (bl_num >> 0) & 0xff;
	buf[4] = (bl_len >> 24) & 0xff;
	buf[5] = (bl_len >> 16) & 0xff;
	buf[6] = (bl_len >> 8) & 0xff;
	buf[7] = (bl_len >> 0) & 0xff;

	usb_stor_access_xfer_buf(us, buf, 8, srb, &sg, &offset, TO_XFER_BUF);
	/* usb_stor_set_xfer_buf(us, buf, srb->request_bufflen,
	srb, TO_XFER_BUF); */

	return USB_STOR_TRANSPORT_GOOD;
	}

	/*
	* MS_SCSI_Read()
	*/
	int MS_SCSI_Read(struct us_data us, struct scsi_cmnd srb)
	{
	struct bulk_cb_wrap bcb = (struct bulk_cb_wrap ) us->iobuf;
	int result = 0;
	PBYTE Cdb = srb->cmnd;
	DWORD bn = ((Cdb[2] << 24) & 0xff000000) \|
	((Cdb[3] << 16) & 0x00ff0000) \|
	((Cdb[4] << 8) & 0x0000ff00) \|
	((Cdb[5] << 0) & 0x000000ff);
	WORD blen = ((Cdb[7] << 8) & 0xff00) \| ((Cdb[8] << 0) & 0x00ff);
	DWORD blenByte = blen * 0x200;

	/* pr_info("SCSIOP_READ --- bn = %X, blen = %X, srb->use_sg = %X\n",
	bn, blen, srb->use_sg); */

	if (bn > us->bl_num)
	return USB_STOR_TRANSPORT_ERROR;

	if (us->MS_Status.IsMSPro) {
	result = ENE_LoadBinCode(us, MSP_RW_PATTERN);
	if (result != USB_STOR_XFER_GOOD) {
	pr_info("Load MSP RW pattern Fail !!\n");
	return USB_STOR_TRANSPORT_ERROR;
	}

	/* set up the command wrapper */
	memset(bcb, 0, sizeof(struct bulk_cb_wrap));
	bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
	bcb->DataTransferLength = blenByte;
	bcb->Flags = 0x80;
	bcb->CDB[0] = 0xF1;
	bcb->CDB[1] = 0x02;
	bcb->CDB[5] = (BYTE)(bn);
	bcb->CDB[4] = (BYTE)(bn>>8);
	bcb->CDB[3] = (BYTE)(bn>>16);
	bcb->CDB[2] = (BYTE)(bn>>24);

	result = ENE_SendScsiCmd(us, FDIR_READ, scsi_sglist(srb), 1);
	} else {
	void *buf;
	int offset = 0;
	WORD phyblk, logblk;
	BYTE PageNum;
	WORD len;
	DWORD blkno;

	buf = kmalloc(blenByte, GFP_KERNEL);
	if (buf == NULL)
	return USB_STOR_TRANSPORT_ERROR;

	result = ENE_LoadBinCode(us, MS_RW_PATTERN);
	if (result != USB_STOR_XFER_GOOD) {
	pr_info("Load MS RW pattern Fail !!\n");
	result = USB_STOR_TRANSPORT_ERROR;
	goto exit;
	}

	logblk = (WORD)(bn / us->MS_Lib.PagesPerBlock);
	PageNum = (BYTE)(bn % us->MS_Lib.PagesPerBlock);

	while (1) {
	if (blen > (us->MS_Lib.PagesPerBlock-PageNum))
	len = us->MS_Lib.PagesPerBlock-PageNum;
	else
	len = blen;

	phyblk = MS_LibConv2Physical(us, logblk);
	blkno = phyblk * 0x20 + PageNum;

	/* set up the command wrapper */
	memset(bcb, 0, sizeof(struct bulk_cb_wrap));
	bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
	bcb->DataTransferLength = 0x200 * len;
	bcb->Flags = 0x80;
	bcb->CDB[0] = 0xF1;
	bcb->CDB[1] = 0x02;
	bcb->CDB[5] = (BYTE)(blkno);
	bcb->CDB[4] = (BYTE)(blkno>>8);
	bcb->CDB[3] = (BYTE)(blkno>>16);
	bcb->CDB[2] = (BYTE)(blkno>>24);

	result = ENE_SendScsiCmd(us, FDIR_READ, buf+offset, 0);
	if (result != USB_STOR_XFER_GOOD) {
	pr_info("MS_SCSI_Read --- result = %x\n",
	result);
	result = USB_STOR_TRANSPORT_ERROR;
	goto exit;
	}

	blen -= len;
	if (blen <= 0)
	break;
	logblk++;
	PageNum = 0;
	offset += MS_BYTES_PER_PAGE*len;
	}
	usb_stor_set_xfer_buf(us, buf, blenByte, srb, TO_XFER_BUF);
	exit:
	kfree(buf);
	}
	return result;
	}

	/*
	* MS_SCSI_Write()
	*/
	int MS_SCSI_Write(struct us_data us, struct scsi_cmnd srb)
	{
	struct bulk_cb_wrap bcb = (struct bulk_cb_wrap ) us->iobuf;
	int result = 0;
	PBYTE Cdb = srb->cmnd;
	DWORD bn = ((Cdb[2] << 24) & 0xff000000) \|
	((Cdb[3] << 16) & 0x00ff0000) \|
	((Cdb[4] << 8) & 0x0000ff00) \|
	((Cdb[5] << 0) & 0x000000ff);
	WORD blen = ((Cdb[7] << 8) & 0xff00) \| ((Cdb[8] << 0) & 0x00ff);
	DWORD blenByte = blen * 0x200;

	if (bn > us->bl_num)
	return USB_STOR_TRANSPORT_ERROR;

	if (us->MS_Status.IsMSPro) {
	result = ENE_LoadBinCode(us, MSP_RW_PATTERN);
	if (result != USB_STOR_XFER_GOOD) {
	pr_info("Load MSP RW pattern Fail !!\n");
	return USB_STOR_TRANSPORT_ERROR;
	}

	/* set up the command wrapper */
	memset(bcb, 0, sizeof(struct bulk_cb_wrap));
	bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
	bcb->DataTransferLength = blenByte;
	bcb->Flags = 0x00;
	bcb->CDB[0] = 0xF0;
	bcb->CDB[1] = 0x04;
	bcb->CDB[5] = (BYTE)(bn);
	bcb->CDB[4] = (BYTE)(bn>>8);
	bcb->CDB[3] = (BYTE)(bn>>16);
	bcb->CDB[2] = (BYTE)(bn>>24);

	result = ENE_SendScsiCmd(us, FDIR_WRITE, scsi_sglist(srb), 1);
	} else {
	void *buf;
	int offset = 0;
	WORD PhyBlockAddr;
	BYTE PageNum;
	DWORD result;
	WORD len, oldphy, newphy;

	buf = kmalloc(blenByte, GFP_KERNEL);
	if (buf == NULL)
	return USB_STOR_TRANSPORT_ERROR;
	usb_stor_set_xfer_buf(us, buf, blenByte, srb, FROM_XFER_BUF);

	result = ENE_LoadBinCode(us, MS_RW_PATTERN);
	if (result != USB_STOR_XFER_GOOD) {
	pr_info("Load MS RW pattern Fail !!\n");
	result = USB_STOR_TRANSPORT_ERROR;
	goto exit;
	}

	PhyBlockAddr = (WORD)(bn / us->MS_Lib.PagesPerBlock);
	PageNum = (BYTE)(bn % us->MS_Lib.PagesPerBlock);

	while (1) {
	if (blen > (us->MS_Lib.PagesPerBlock-PageNum))
	len = us->MS_Lib.PagesPerBlock-PageNum;
	else
	len = blen;

	oldphy = MS_LibConv2Physical(us, PhyBlockAddr);
	newphy = MS_LibSearchBlockFromLogical(us, PhyBlockAddr);

	result = MS_ReaderCopyBlock(us, oldphy, newphy,
	PhyBlockAddr, PageNum,
	buf+offset, len);
	if (result != USB_STOR_XFER_GOOD) {
	pr_info("MS_SCSI_Write --- result = %x\n",
	result);
	result = USB_STOR_TRANSPORT_ERROR;
	goto exit;
	}

	us->MS_Lib.Phy2LogMap[oldphy] = MS_LB_NOT_USED_ERASED;
	MS_LibForceSetLogicalPair(us, PhyBlockAddr, newphy);

	blen -= len;
	if (blen <= 0)
	break;
	PhyBlockAddr++;
	PageNum = 0;
	offset += MS_BYTES_PER_PAGE*len;
	}
	exit:
	kfree(buf);
	}
	return result;
	}

	/*
	* MS_SCSIIrp()
	*/
	int MS_SCSIIrp(struct us_data us, struct scsi_cmnd srb)
	{
	int result;

	us->SrbStatus = SS_SUCCESS;
	switch (srb->cmnd[0]) {
	case TEST_UNIT_READY:
	result = MS_SCSI_Test_Unit_Ready(us, srb);
	break; /* 0x00 */
	case INQUIRY:
	result = MS_SCSI_Inquiry(us, srb);
	break; /* 0x12 */
	case MODE_SENSE:
	result = MS_SCSI_Mode_Sense(us, srb);
	break; /* 0x1A */
	case READ_CAPACITY:
	result = MS_SCSI_Read_Capacity(us, srb);
	break; /* 0x25 */
	case READ_10:
	result = MS_SCSI_Read(us, srb);
	break; /* 0x28 */
	case WRITE_10:
	result = MS_SCSI_Write(us, srb);
	break; /* 0x2A */
	default:
	us->SrbStatus = SS_ILLEGAL_REQUEST;
	result = USB_STOR_TRANSPORT_FAILED;
	break;
	}
	return result;
	}