sdscsi.c
#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"
int SD_SCSI_Test_Unit_Ready (struct us_data *us, struct scsi_cmnd *srb);
int SD_SCSI_Inquiry (struct us_data *us, struct scsi_cmnd *srb);
int SD_SCSI_Mode_Sense (struct us_data *us, struct scsi_cmnd *srb);
int SD_SCSI_Start_Stop (struct us_data *us, struct scsi_cmnd *srb);
int SD_SCSI_Read_Capacity (struct us_data *us, struct scsi_cmnd *srb);
int SD_SCSI_Read (struct us_data *us, struct scsi_cmnd *srb);
int SD_SCSI_Write (struct us_data *us, struct scsi_cmnd *srb);
//----- SD_SCSIIrp() --------------------------------------------------
int SD_SCSIIrp(struct us_data *us, struct scsi_cmnd *srb)
{
int result;
us->SrbStatus = SS_SUCCESS;
switch (srb->cmnd[0])
{
case TEST_UNIT_READY : result = SD_SCSI_Test_Unit_Ready (us, srb); break; //0x00
case INQUIRY : result = SD_SCSI_Inquiry (us, srb); break; //0x12
case MODE_SENSE : result = SD_SCSI_Mode_Sense (us, srb); break; //0x1A
// case START_STOP : result = SD_SCSI_Start_Stop (us, srb); break; //0x1B
case READ_CAPACITY : result = SD_SCSI_Read_Capacity (us, srb); break; //0x25
case READ_10 : result = SD_SCSI_Read (us, srb); break; //0x28
case WRITE_10 : result = SD_SCSI_Write (us, srb); break; //0x2A
default:
us->SrbStatus = SS_ILLEGAL_REQUEST;
result = USB_STOR_TRANSPORT_FAILED;
break;
}
return result;
}
//----- SD_SCSI_Test_Unit_Ready() --------------------------------------------------
int SD_SCSI_Test_Unit_Ready(struct us_data *us, struct scsi_cmnd *srb)
{
//printk("SD_SCSI_Test_Unit_Ready\n");
if (us->SD_Status.Insert && us->SD_Status.Ready)
return USB_STOR_TRANSPORT_GOOD;
else
{
ENE_SDInit(us);
return USB_STOR_TRANSPORT_GOOD;
}
return USB_STOR_TRANSPORT_GOOD;
}
//----- SD_SCSI_Inquiry() --------------------------------------------------
int SD_SCSI_Inquiry(struct us_data *us, struct scsi_cmnd *srb)
{
//printk("SD_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;
}
//----- SD_SCSI_Mode_Sense() --------------------------------------------------
int SD_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->SD_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;
}
//----- SD_SCSI_Read_Capacity() --------------------------------------------------
int SD_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];
printk("SD_SCSI_Read_Capacity\n");
if ( us->SD_Status.HiCapacity )
{
bl_len = 0x200;
if (us->SD_Status.IsMMC)
bl_num = us->HC_C_SIZE-1;
else
bl_num = (us->HC_C_SIZE + 1) * 1024 - 1;
}
else
{
bl_len = 1<<(us->SD_READ_BL_LEN);
bl_num = us->SD_Block_Mult*(us->SD_C_SIZE+1)*(1<<(us->SD_C_SIZE_MULT+2)) - 1;
}
us->bl_num = bl_num;
printk("bl_len = %x\n", bl_len);
printk("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;
}
//----- SD_SCSI_Read() --------------------------------------------------
int SD_SCSI_Read(struct us_data *us, struct scsi_cmnd *srb)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
int result;
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 bnByte = bn * 0x200;
DWORD blenByte = blen * 0x200;
if (bn > us->bl_num)
return USB_STOR_TRANSPORT_ERROR;
result = ENE_LoadBinCode(us, SD_RW_PATTERN);
if (result != USB_STOR_XFER_GOOD)
{
printk("Load SD RW pattern Fail !!\n");
return USB_STOR_TRANSPORT_ERROR;
}
if ( us->SD_Status.HiCapacity )
bnByte = bn;
// 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[5] = (BYTE)(bnByte);
bcb->CDB[4] = (BYTE)(bnByte>>8);
bcb->CDB[3] = (BYTE)(bnByte>>16);
bcb->CDB[2] = (BYTE)(bnByte>>24);
result = ENE_SendScsiCmd(us, FDIR_READ, scsi_sglist(srb), 1);
return result;
}
//----- SD_SCSI_Write() --------------------------------------------------
int SD_SCSI_Write(struct us_data *us, struct scsi_cmnd *srb)
{
struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
int result;
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 bnByte = bn * 0x200;
DWORD blenByte = blen * 0x200;
if (bn > us->bl_num)
return USB_STOR_TRANSPORT_ERROR;
result = ENE_LoadBinCode(us, SD_RW_PATTERN);
if (result != USB_STOR_XFER_GOOD)
{
printk("Load SD RW pattern Fail !!\n");
return USB_STOR_TRANSPORT_ERROR;
}
if ( us->SD_Status.HiCapacity )
bnByte = bn;
// 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[5] = (BYTE)(bnByte);
bcb->CDB[4] = (BYTE)(bnByte>>8);
bcb->CDB[3] = (BYTE)(bnByte>>16);
bcb->CDB[2] = (BYTE)(bnByte>>24);
result = ENE_SendScsiCmd(us, FDIR_WRITE, scsi_sglist(srb), 1);
return result;
}
