diff options
Diffstat (limited to 'drivers/staging/keucr/msscsi.c')
-rw-r--r-- | drivers/staging/keucr/msscsi.c | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/drivers/staging/keucr/msscsi.c b/drivers/staging/keucr/msscsi.c new file mode 100644 index 000000000000..b908a2383966 --- /dev/null +++ b/drivers/staging/keucr/msscsi.c @@ -0,0 +1,320 @@ +#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); + + 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); + 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; +} + |