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path: root/drivers/staging/keucr/msscsi.c
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-rw-r--r--drivers/staging/keucr/msscsi.c324
1 files changed, 324 insertions, 0 deletions
diff --git a/drivers/staging/keucr/msscsi.c b/drivers/staging/keucr/msscsi.c
new file mode 100644
index 0000000..ad0c5c6
--- /dev/null
+++ b/drivers/staging/keucr/msscsi.c
@@ -0,0 +1,324 @@
+#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 MS_SCSI_Test_Unit_Ready (struct us_data *us, struct scsi_cmnd *srb);
+int MS_SCSI_Inquiry (struct us_data *us, struct scsi_cmnd *srb);
+int MS_SCSI_Mode_Sense (struct us_data *us, struct scsi_cmnd *srb);
+int MS_SCSI_Start_Stop (struct us_data *us, struct scsi_cmnd *srb);
+int MS_SCSI_Read_Capacity (struct us_data *us, struct scsi_cmnd *srb);
+int MS_SCSI_Read (struct us_data *us, struct scsi_cmnd *srb);
+int MS_SCSI_Write (struct us_data *us, struct scsi_cmnd *srb);
+
+//----- 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;
+}
+
+//----- MS_SCSI_Test_Unit_Ready() --------------------------------------------------
+int MS_SCSI_Test_Unit_Ready(struct us_data *us, struct scsi_cmnd *srb)
+{
+ //printk("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)
+{
+ //printk("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];
+
+ printk("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;
+ 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;
+}
+
+//----- 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;
+
+ //printk("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)
+ {
+ printk("Load MSP RW pattern Fail !!\n");
+ return USB_STOR_TRANSPORT_ERROR;
+ }
+
+ // set up the command wrapper
+ memset(bcb, 0, sizeof(bcb));
+ 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)
+ {
+ printk("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(bcb));
+ 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)
+ {
+ printk("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)
+ {
+ printk("Load MSP RW pattern Fail !!\n");
+ return USB_STOR_TRANSPORT_ERROR;
+ }
+
+ // set up the command wrapper
+ memset(bcb, 0, sizeof(bcb));
+ 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)
+ {
+ printk("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)
+ {
+ printk("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;
+}
+
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