drivers/staging/keucr/msscsi.c

   1 #include <linux/sched.h>
   2 #include <linux/errno.h>
   3 #include <linux/slab.h>
   4
   5 #include <scsi/scsi.h>
   6 #include <scsi/scsi_eh.h>
   7 #include <scsi/scsi_device.h>
   8
   9 #include "usb.h"
  10 #include "scsiglue.h"
  11 #include "transport.h"
  12
  13 int MS_SCSI_Test_Unit_Ready (struct us_data *us, struct scsi_cmnd *srb);
  14 int MS_SCSI_Inquiry         (struct us_data *us, struct scsi_cmnd *srb);
  15 int MS_SCSI_Mode_Sense      (struct us_data *us, struct scsi_cmnd *srb);
  16 int MS_SCSI_Start_Stop      (struct us_data *us, struct scsi_cmnd *srb);
  17 int MS_SCSI_Read_Capacity   (struct us_data *us, struct scsi_cmnd *srb);
  18 int MS_SCSI_Read            (struct us_data *us, struct scsi_cmnd *srb);
  19 int MS_SCSI_Write           (struct us_data *us, struct scsi_cmnd *srb);
  20
  21 //----- MS_SCSIIrp() --------------------------------------------------
  22 int MS_SCSIIrp(struct us_data *us, struct scsi_cmnd *srb)
  23 {
  24         int    result;
  25
  26         us->SrbStatus = SS_SUCCESS;
  27         switch (srb->cmnd[0])
  28         {
  29                 case TEST_UNIT_READY :  result = MS_SCSI_Test_Unit_Ready (us, srb);  break; //0x00
  30                 case INQUIRY         :  result = MS_SCSI_Inquiry         (us, srb);  break; //0x12
  31                 case MODE_SENSE      :  result = MS_SCSI_Mode_Sense      (us, srb);  break; //0x1A
  32                 case READ_CAPACITY   :  result = MS_SCSI_Read_Capacity   (us, srb);  break; //0x25
  33                 case READ_10         :  result = MS_SCSI_Read            (us, srb);  break; //0x28
  34                 case WRITE_10        :  result = MS_SCSI_Write           (us, srb);  break; //0x2A
  35
  36                 default:
  37                         us->SrbStatus = SS_ILLEGAL_REQUEST;
  38                         result = USB_STOR_TRANSPORT_FAILED;
  39                         break;
  40         }
  41         return result;
  42 }
  43
  44 //----- MS_SCSI_Test_Unit_Ready() --------------------------------------------------
  45 int MS_SCSI_Test_Unit_Ready(struct us_data *us, struct scsi_cmnd *srb)
  46 {
  47         //printk("MS_SCSI_Test_Unit_Ready\n");
  48         if (us->MS_Status.Insert && us->MS_Status.Ready)
  49                 return USB_STOR_TRANSPORT_GOOD;
  50         else
  51         {
  52                 ENE_MSInit(us);
  53                 return USB_STOR_TRANSPORT_GOOD;
  54         }
  55
  56         return USB_STOR_TRANSPORT_GOOD;
  57 }
  58
  59 //----- MS_SCSI_Inquiry() --------------------------------------------------
  60 int MS_SCSI_Inquiry(struct us_data *us, struct scsi_cmnd *srb)
  61 {
  62         //printk("MS_SCSI_Inquiry\n");
  63         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};
  64
  65         usb_stor_set_xfer_buf(us, data_ptr, 36, srb, TO_XFER_BUF);
  66         return USB_STOR_TRANSPORT_GOOD;
  67 }
  68
  69
  70 //----- MS_SCSI_Mode_Sense() --------------------------------------------------
  71 int MS_SCSI_Mode_Sense(struct us_data *us, struct scsi_cmnd *srb)
  72 {
  73         BYTE    mediaNoWP[12] = {0x0b,0x00,0x00,0x08,0x00,0x00,0x71,0xc0,0x00,0x00,0x02,0x00};
  74         BYTE    mediaWP[12]   = {0x0b,0x00,0x80,0x08,0x00,0x00,0x71,0xc0,0x00,0x00,0x02,0x00};
  75
  76         if (us->MS_Status.WtP)
  77                 usb_stor_set_xfer_buf(us, mediaWP, 12, srb, TO_XFER_BUF);
  78         else
  79                 usb_stor_set_xfer_buf(us, mediaNoWP, 12, srb, TO_XFER_BUF);
  80
  81
  82         return USB_STOR_TRANSPORT_GOOD;
  83 }
  84
  85 //----- MS_SCSI_Read_Capacity() --------------------------------------------------
  86 int MS_SCSI_Read_Capacity(struct us_data *us, struct scsi_cmnd *srb)
  87 {
  88         unsigned int offset = 0;
  89         struct scatterlist *sg = NULL;
  90         DWORD   bl_num;
  91         WORD    bl_len;
  92         BYTE    buf[8];
  93
  94         printk("MS_SCSI_Read_Capacity\n");
  95
  96         bl_len = 0x200;
  97         if ( us->MS_Status.IsMSPro )
  98                 bl_num = us->MSP_TotalBlock - 1;
  99         else
 100                 bl_num = us->MS_Lib.NumberOfLogBlock * us->MS_Lib.blockSize * 2 - 1;
 101
 102         us->bl_num = bl_num;
 103         printk("bl_len = %x\n", bl_len);
 104         printk("bl_num = %x\n", bl_num);
 105
 106         //srb->request_bufflen = 8;
 107         buf[0] = (bl_num>>24) & 0xff;
 108         buf[1] = (bl_num>>16) & 0xff;
 109         buf[2] = (bl_num>> 8) & 0xff;
 110         buf[3] = (bl_num>> 0) & 0xff;
 111         buf[4] = (bl_len>>24) & 0xff;
 112         buf[5] = (bl_len>>16) & 0xff;
 113         buf[6] = (bl_len>> 8) & 0xff;
 114         buf[7] = (bl_len>> 0) & 0xff;
 115
 116         usb_stor_access_xfer_buf(us, buf, 8, srb, &sg, &offset, TO_XFER_BUF);
 117         //usb_stor_set_xfer_buf(us, buf, srb->request_bufflen, srb, TO_XFER_BUF);
 118
 119         return USB_STOR_TRANSPORT_GOOD;
 120 }
 121
 122 //----- MS_SCSI_Read() --------------------------------------------------
 123 int MS_SCSI_Read(struct us_data *us, struct scsi_cmnd *srb)
 124 {
 125         struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 126         int result=0;
 127         PBYTE   Cdb = srb->cmnd;
 128         DWORD bn  =  ((Cdb[2]<<24) & 0xff000000) | ((Cdb[3]<<16) & 0x00ff0000) |
 129                    ((Cdb[4]<< 8) & 0x0000ff00) | ((Cdb[5]<< 0) & 0x000000ff);
 130         WORD  blen = ((Cdb[7]<< 8) & 0xff00)     | ((Cdb[8]<< 0) & 0x00ff);
 131         DWORD   blenByte = blen * 0x200;
 132
 133         //printk("SCSIOP_READ --- bn = %X, blen = %X, srb->use_sg = %X\n", bn, blen, srb->use_sg);
 134
 135         if (bn > us->bl_num)
 136                 return USB_STOR_TRANSPORT_ERROR;
 137
 138         if (us->MS_Status.IsMSPro)
 139         {
 140                 result = ENE_LoadBinCode(us, MSP_RW_PATTERN);
 141                 if (result != USB_STOR_XFER_GOOD)
 142                 {
 143                         printk("Load MSP RW pattern Fail !!\n");
 144                         return USB_STOR_TRANSPORT_ERROR;
 145                 }
 146
 147                 // set up the command wrapper
 148                 memset(bcb, 0, sizeof(bcb));
 149                 bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
 150                 bcb->DataTransferLength = blenByte;
 151                 bcb->Flags  = 0x80;
 152                 bcb->CDB[0] = 0xF1;
 153                 bcb->CDB[1] = 0x02;
 154                 bcb->CDB[5] = (BYTE)(bn);
 155                 bcb->CDB[4] = (BYTE)(bn>>8);
 156                 bcb->CDB[3] = (BYTE)(bn>>16);
 157                 bcb->CDB[2] = (BYTE)(bn>>24);
 158
 159                 result = ENE_SendScsiCmd(us, FDIR_READ, scsi_sglist(srb), 1);
 160         }
 161         else
 162         {
 163                 void    *buf;
 164                 int     offset=0;
 165                 WORD    phyblk, logblk;
 166                 BYTE    PageNum;
 167                 WORD    len;
 168                 DWORD   blkno;
 169
 170                 buf = kmalloc(blenByte, GFP_KERNEL);
 171                 if (buf == NULL)
 172                         return USB_STOR_TRANSPORT_ERROR;
 173
 174                 result = ENE_LoadBinCode(us, MS_RW_PATTERN);
 175                 if (result != USB_STOR_XFER_GOOD)
 176                 {
 177                         printk("Load MS RW pattern Fail !!\n");
 178                         result = USB_STOR_TRANSPORT_ERROR;
 179                         goto exit;
 180                 }
 181
 182                 logblk  = (WORD)(bn / us->MS_Lib.PagesPerBlock);
 183                 PageNum = (BYTE)(bn % us->MS_Lib.PagesPerBlock);
 184
 185                 while(1)
 186                 {
 187                         if (blen > (us->MS_Lib.PagesPerBlock-PageNum) )
 188                                 len = us->MS_Lib.PagesPerBlock-PageNum;
 189                         else
 190                                 len = blen;
 191
 192                         phyblk = MS_LibConv2Physical(us, logblk);
 193                         blkno  = phyblk * 0x20 + PageNum;
 194
 195                         // set up the command wrapper
 196                         memset(bcb, 0, sizeof(bcb));
 197                         bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
 198                         bcb->DataTransferLength = 0x200 * len;
 199                         bcb->Flags  = 0x80;
 200                         bcb->CDB[0] = 0xF1;
 201                         bcb->CDB[1] = 0x02;
 202                         bcb->CDB[5] = (BYTE)(blkno);
 203                         bcb->CDB[4] = (BYTE)(blkno>>8);
 204                         bcb->CDB[3] = (BYTE)(blkno>>16);
 205                         bcb->CDB[2] = (BYTE)(blkno>>24);
 206
 207                         result = ENE_SendScsiCmd(us, FDIR_READ, buf+offset, 0);
 208                         if (result != USB_STOR_XFER_GOOD)
 209                         {
 210                                 printk("MS_SCSI_Read --- result = %x\n", result);
 211                                 result =  USB_STOR_TRANSPORT_ERROR;
 212                                 goto exit;
 213                         }
 214
 215                         blen -= len;
 216                         if (blen<=0)
 217                                 break;
 218                         logblk++;
 219                         PageNum = 0;
 220                         offset += MS_BYTES_PER_PAGE*len;
 221                 }
 222                 usb_stor_set_xfer_buf(us, buf, blenByte, srb, TO_XFER_BUF);
 223 exit:
 224                 kfree(buf);
 225         }
 226         return result;
 227 }
 228
 229 //----- MS_SCSI_Write() --------------------------------------------------
 230 int MS_SCSI_Write(struct us_data *us, struct scsi_cmnd *srb)
 231 {
 232         struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 233         int result=0;
 234         PBYTE   Cdb = srb->cmnd;
 235         DWORD bn  =  ((Cdb[2]<<24) & 0xff000000) | ((Cdb[3]<<16) & 0x00ff0000) |
 236                    ((Cdb[4]<< 8) & 0x0000ff00) | ((Cdb[5]<< 0) & 0x000000ff);
 237         WORD  blen = ((Cdb[7]<< 8) & 0xff00)     | ((Cdb[8]<< 0) & 0x00ff);
 238         DWORD   blenByte = blen * 0x200;
 239
 240         if (bn > us->bl_num)
 241                 return USB_STOR_TRANSPORT_ERROR;
 242
 243         if (us->MS_Status.IsMSPro)
 244         {
 245                 result = ENE_LoadBinCode(us, MSP_RW_PATTERN);
 246                 if (result != USB_STOR_XFER_GOOD)
 247                 {
 248                         printk("Load MSP RW pattern Fail !!\n");
 249                         return USB_STOR_TRANSPORT_ERROR;
 250                 }
 251
 252                 // set up the command wrapper
 253                 memset(bcb, 0, sizeof(bcb));
 254                 bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
 255                 bcb->DataTransferLength = blenByte;
 256                 bcb->Flags  = 0x00;
 257                 bcb->CDB[0] = 0xF0;
 258                 bcb->CDB[1] = 0x04;
 259                 bcb->CDB[5] = (BYTE)(bn);
 260                 bcb->CDB[4] = (BYTE)(bn>>8);
 261                 bcb->CDB[3] = (BYTE)(bn>>16);
 262                 bcb->CDB[2] = (BYTE)(bn>>24);
 263
 264                 result = ENE_SendScsiCmd(us, FDIR_WRITE, scsi_sglist(srb), 1);
 265         }
 266         else
 267         {
 268                 void    *buf;
 269                 int     offset=0;
 270                 WORD    PhyBlockAddr;
 271                 BYTE    PageNum;
 272                 DWORD   result;
 273                 WORD    len, oldphy, newphy;
 274
 275                 buf = kmalloc(blenByte, GFP_KERNEL);
 276                 if (buf == NULL)
 277                         return USB_STOR_TRANSPORT_ERROR;
 278                 usb_stor_set_xfer_buf(us, buf, blenByte, srb, FROM_XFER_BUF);
 279
 280                 result = ENE_LoadBinCode(us, MS_RW_PATTERN);
 281                 if (result != USB_STOR_XFER_GOOD)
 282                 {
 283                         printk("Load MS RW pattern Fail !!\n");
 284                         result = USB_STOR_TRANSPORT_ERROR;
 285                         goto exit;
 286                 }
 287
 288                 PhyBlockAddr = (WORD)(bn / us->MS_Lib.PagesPerBlock);
 289                 PageNum      = (BYTE)(bn % us->MS_Lib.PagesPerBlock);
 290
 291                 while(1)
 292                 {
 293                         if (blen > (us->MS_Lib.PagesPerBlock-PageNum) )
 294                                 len = us->MS_Lib.PagesPerBlock-PageNum;
 295                         else
 296                                 len = blen;
 297
 298                         oldphy = MS_LibConv2Physical(us, PhyBlockAddr);
 299                         newphy = MS_LibSearchBlockFromLogical(us, PhyBlockAddr);
 300
 301                         result = MS_ReaderCopyBlock(us, oldphy, newphy, PhyBlockAddr, PageNum, buf+offset, len);
 302                         if (result != USB_STOR_XFER_GOOD)
 303                         {
 304                                 printk("MS_SCSI_Write --- result = %x\n", result);
 305                                 result =  USB_STOR_TRANSPORT_ERROR;
 306                                 goto exit;
 307                         }
 308
 309                         us->MS_Lib.Phy2LogMap[oldphy] = MS_LB_NOT_USED_ERASED;
 310                         MS_LibForceSetLogicalPair(us, PhyBlockAddr, newphy);
 311
 312                         blen -= len;
 313                         if (blen<=0)
 314                                 break;
 315                         PhyBlockAddr++;
 316                         PageNum = 0;
 317                         offset += MS_BYTES_PER_PAGE*len;
 318                 }
 319 exit:
 320                 kfree(buf);
 321         }
 322         return result;
 323 }
 324