drivers/usb/storage/ene_ub6250.c

   1 /*
   2  *
   3  * This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the GNU General Public License as published by the
   5  * Free Software Foundation; either version 2, or (at your option) any
   6  * later version.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 675 Mass Ave, Cambridge, MA 02139, USA.
  16  */
  17 #include <linux/jiffies.h>
  18 #include <linux/errno.h>
  19 #include <linux/module.h>
  20 #include <linux/slab.h>
  21
  22 #include <scsi/scsi.h>
  23 #include <scsi/scsi_cmnd.h>
  24
  25 #include <linux/firmware.h>
  26
  27 #include "usb.h"
  28 #include "transport.h"
  29 #include "protocol.h"
  30 #include "debug.h"
  31
  32 MODULE_DESCRIPTION("Driver for ENE UB6250 reader");
  33 MODULE_LICENSE("GPL");
  34
  35
  36 /*
  37  * The table of devices
  38  */
  39 #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
  40                     vendorName, productName, useProtocol, useTransport, \
  41                     initFunction, flags) \
  42 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
  43         .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
  44
  45 struct usb_device_id ene_ub6250_usb_ids[] = {
  46 #       include "unusual_ene_ub6250.h"
  47         { }             /* Terminating entry */
  48 };
  49 MODULE_DEVICE_TABLE(usb, ene_ub6250_usb_ids);
  50
  51 #undef UNUSUAL_DEV
  52
  53 /*
  54  * The flags table
  55  */
  56 #define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
  57                     vendor_name, product_name, use_protocol, use_transport, \
  58                     init_function, Flags) \
  59 { \
  60         .vendorName = vendor_name,      \
  61         .productName = product_name,    \
  62         .useProtocol = use_protocol,    \
  63         .useTransport = use_transport,  \
  64         .initFunction = init_function,  \
  65 }
  66
  67 static struct us_unusual_dev ene_ub6250_unusual_dev_list[] = {
  68 #       include "unusual_ene_ub6250.h"
  69         { }             /* Terminating entry */
  70 };
  71
  72 #undef UNUSUAL_DEV
  73
  74
  75
  76 /* ENE bin code len */
  77 #define ENE_BIN_CODE_LEN    0x800
  78 /* EnE HW Register */
  79 #define REG_CARD_STATUS     0xFF83
  80 #define REG_HW_TRAP1        0xFF89
  81
  82 /* SRB Status */
  83 #define SS_SUCCESS                  0x00      /* No Sense */
  84 #define SS_NOT_READY                0x02
  85 #define SS_MEDIUM_ERR               0x03
  86 #define SS_HW_ERR                   0x04
  87 #define SS_ILLEGAL_REQUEST          0x05
  88 #define SS_UNIT_ATTENTION           0x06
  89
  90 /* ENE Load FW Pattern */
  91 #define SD_INIT1_PATTERN   1
  92 #define SD_INIT2_PATTERN   2
  93 #define SD_RW_PATTERN      3
  94 #define MS_INIT_PATTERN    4
  95 #define MSP_RW_PATTERN     5
  96 #define MS_RW_PATTERN      6
  97 #define SM_INIT_PATTERN    7
  98 #define SM_RW_PATTERN      8
  99
 100 #define FDIR_WRITE         0
 101 #define FDIR_READ          1
 102
 103
 104 struct SD_STATUS {
 105         u8    Insert:1;
 106         u8    Ready:1;
 107         u8    MediaChange:1;
 108         u8    IsMMC:1;
 109         u8    HiCapacity:1;
 110         u8    HiSpeed:1;
 111         u8    WtP:1;
 112         u8    Reserved:1;
 113 };
 114
 115 struct MS_STATUS {
 116         u8    Insert:1;
 117         u8    Ready:1;
 118         u8    MediaChange:1;
 119         u8    IsMSPro:1;
 120         u8    IsMSPHG:1;
 121         u8    Reserved1:1;
 122         u8    WtP:1;
 123         u8    Reserved2:1;
 124 };
 125
 126 struct SM_STATUS {
 127         u8    Insert:1;
 128         u8    Ready:1;
 129         u8    MediaChange:1;
 130         u8    Reserved:3;
 131         u8    WtP:1;
 132         u8    IsMS:1;
 133 };
 134
 135
 136 /* SD Block Length */
 137 /* 2^9 = 512 Bytes, The HW maximum read/write data length */
 138 #define SD_BLOCK_LEN  9
 139
 140 struct ene_ub6250_info {
 141         /* for 6250 code */
 142         struct SD_STATUS        SD_Status;
 143         struct MS_STATUS        MS_Status;
 144         struct SM_STATUS        SM_Status;
 145
 146         /* ----- SD Control Data ---------------- */
 147         /*SD_REGISTER SD_Regs; */
 148         u16             SD_Block_Mult;
 149         u8              SD_READ_BL_LEN;
 150         u16             SD_C_SIZE;
 151         u8              SD_C_SIZE_MULT;
 152
 153         /* SD/MMC New spec. */
 154         u8              SD_SPEC_VER;
 155         u8              SD_CSD_VER;
 156         u8              SD20_HIGH_CAPACITY;
 157         u32             HC_C_SIZE;
 158         u8              MMC_SPEC_VER;
 159         u8              MMC_BusWidth;
 160         u8              MMC_HIGH_CAPACITY;
 161
 162         /*----- MS Control Data ---------------- */
 163         bool            MS_SWWP;
 164         u32             MSP_TotalBlock;
 165         /*MS_LibControl       MS_Lib;*/
 166         bool            MS_IsRWPage;
 167         u16             MS_Model;
 168
 169         /*----- SM Control Data ---------------- */
 170         u8              SM_DeviceID;
 171         u8              SM_CardID;
 172
 173         unsigned char   *testbuf;
 174         u8              BIN_FLAG;
 175         u32             bl_num;
 176         int             SrbStatus;
 177
 178         /*------Power Managerment ---------------*/
 179         bool            Power_IsResum;
 180 };
 181
 182 static int ene_sd_init(struct us_data *us);
 183 static int ene_load_bincode(struct us_data *us, unsigned char flag);
 184
 185 static void ene_ub6250_info_destructor(void *extra)
 186 {
 187         if (!extra)
 188                 return;
 189 }
 190
 191 static int ene_send_scsi_cmd(struct us_data *us, u8 fDir, void *buf, int use_sg)
 192 {
 193         struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 194         struct bulk_cs_wrap *bcs = (struct bulk_cs_wrap *) us->iobuf;
 195
 196         int result;
 197         unsigned int residue;
 198         unsigned int cswlen = 0, partial = 0;
 199         unsigned int transfer_length = bcb->DataTransferLength;
 200
 201         /* US_DEBUGP("transport --- ene_send_scsi_cmd\n"); */
 202         /* send cmd to out endpoint */
 203         result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe,
 204                                             bcb, US_BULK_CB_WRAP_LEN, NULL);
 205         if (result != USB_STOR_XFER_GOOD) {
 206                 US_DEBUGP("send cmd to out endpoint fail ---\n");
 207                 return USB_STOR_TRANSPORT_ERROR;
 208         }
 209
 210         if (buf) {
 211                 unsigned int pipe = fDir;
 212
 213                 if (fDir  == FDIR_READ)
 214                         pipe = us->recv_bulk_pipe;
 215                 else
 216                         pipe = us->send_bulk_pipe;
 217
 218                 /* Bulk */
 219                 if (use_sg) {
 220                         result = usb_stor_bulk_srb(us, pipe, us->srb);
 221                 } else {
 222                         result = usb_stor_bulk_transfer_sg(us, pipe, buf,
 223                                                 transfer_length, 0, &partial);
 224                 }
 225                 if (result != USB_STOR_XFER_GOOD) {
 226                         US_DEBUGP("data transfer fail ---\n");
 227                         return USB_STOR_TRANSPORT_ERROR;
 228                 }
 229         }
 230
 231         /* Get CSW for device status */
 232         result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, bcs,
 233                                             US_BULK_CS_WRAP_LEN, &cswlen);
 234
 235         if (result == USB_STOR_XFER_SHORT && cswlen == 0) {
 236                 US_DEBUGP("Received 0-length CSW; retrying...\n");
 237                 result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
 238                                             bcs, US_BULK_CS_WRAP_LEN, &cswlen);
 239         }
 240
 241         if (result == USB_STOR_XFER_STALLED) {
 242                 /* get the status again */
 243                 US_DEBUGP("Attempting to get CSW (2nd try)...\n");
 244                 result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
 245                                                 bcs, US_BULK_CS_WRAP_LEN, NULL);
 246         }
 247
 248         if (result != USB_STOR_XFER_GOOD)
 249                 return USB_STOR_TRANSPORT_ERROR;
 250
 251         /* check bulk status */
 252         residue = le32_to_cpu(bcs->Residue);
 253
 254         /* try to compute the actual residue, based on how much data
 255          * was really transferred and what the device tells us */
 256         if (residue && !(us->fflags & US_FL_IGNORE_RESIDUE)) {
 257                 residue = min(residue, transfer_length);
 258                 if (us->srb != NULL)
 259                         scsi_set_resid(us->srb, max(scsi_get_resid(us->srb),
 260                                                                 (int)residue));
 261         }
 262
 263         if (bcs->Status != US_BULK_STAT_OK)
 264                 return USB_STOR_TRANSPORT_ERROR;
 265
 266         return USB_STOR_TRANSPORT_GOOD;
 267 }
 268
 269 static int sd_scsi_test_unit_ready(struct us_data *us, struct scsi_cmnd *srb)
 270 {
 271         struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
 272
 273         if (info->SD_Status.Insert && info->SD_Status.Ready)
 274                 return USB_STOR_TRANSPORT_GOOD;
 275         else {
 276                 ene_sd_init(us);
 277                 return USB_STOR_TRANSPORT_GOOD;
 278         }
 279
 280         return USB_STOR_TRANSPORT_GOOD;
 281 }
 282
 283 static int sd_scsi_inquiry(struct us_data *us, struct scsi_cmnd *srb)
 284 {
 285         unsigned char data_ptr[36] = {
 286                 0x00, 0x80, 0x02, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x55,
 287                 0x53, 0x42, 0x32, 0x2E, 0x30, 0x20, 0x20, 0x43, 0x61,
 288                 0x72, 0x64, 0x52, 0x65, 0x61, 0x64, 0x65, 0x72, 0x20,
 289                 0x20, 0x20, 0x20, 0x20, 0x20, 0x30, 0x31, 0x30, 0x30 };
 290
 291         usb_stor_set_xfer_buf(data_ptr, 36, srb);
 292         return USB_STOR_TRANSPORT_GOOD;
 293 }
 294
 295 static int sd_scsi_mode_sense(struct us_data *us, struct scsi_cmnd *srb)
 296 {
 297         struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
 298         unsigned char mediaNoWP[12] = {
 299                 0x0b, 0x00, 0x00, 0x08, 0x00, 0x00,
 300                 0x71, 0xc0, 0x00, 0x00, 0x02, 0x00 };
 301         unsigned char mediaWP[12]   = {
 302                 0x0b, 0x00, 0x80, 0x08, 0x00, 0x00,
 303                 0x71, 0xc0, 0x00, 0x00, 0x02, 0x00 };
 304
 305         if (info->SD_Status.WtP)
 306                 usb_stor_set_xfer_buf(mediaWP, 12, srb);
 307         else
 308                 usb_stor_set_xfer_buf(mediaNoWP, 12, srb);
 309
 310
 311         return USB_STOR_TRANSPORT_GOOD;
 312 }
 313
 314 static int sd_scsi_read_capacity(struct us_data *us, struct scsi_cmnd *srb)
 315 {
 316         u32   bl_num;
 317         u16    bl_len;
 318         unsigned int offset = 0;
 319         unsigned char    buf[8];
 320         struct scatterlist *sg = NULL;
 321         struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
 322
 323         US_DEBUGP("sd_scsi_read_capacity\n");
 324         if (info->SD_Status.HiCapacity) {
 325                 bl_len = 0x200;
 326                 if (info->SD_Status.IsMMC)
 327                         bl_num = info->HC_C_SIZE-1;
 328                 else
 329                         bl_num = (info->HC_C_SIZE + 1) * 1024 - 1;
 330         } else {
 331                 bl_len = 1<<(info->SD_READ_BL_LEN);
 332                 bl_num = info->SD_Block_Mult * (info->SD_C_SIZE + 1)
 333                                 * (1 << (info->SD_C_SIZE_MULT + 2)) - 1;
 334         }
 335         info->bl_num = bl_num;
 336         US_DEBUGP("bl_len = %x\n", bl_len);
 337         US_DEBUGP("bl_num = %x\n", bl_num);
 338
 339         /*srb->request_bufflen = 8; */
 340         buf[0] = (bl_num >> 24) & 0xff;
 341         buf[1] = (bl_num >> 16) & 0xff;
 342         buf[2] = (bl_num >> 8) & 0xff;
 343         buf[3] = (bl_num >> 0) & 0xff;
 344         buf[4] = (bl_len >> 24) & 0xff;
 345         buf[5] = (bl_len >> 16) & 0xff;
 346         buf[6] = (bl_len >> 8) & 0xff;
 347         buf[7] = (bl_len >> 0) & 0xff;
 348
 349         usb_stor_access_xfer_buf(buf, 8, srb, &sg, &offset, TO_XFER_BUF);
 350
 351         return USB_STOR_TRANSPORT_GOOD;
 352 }
 353
 354 static int sd_scsi_read(struct us_data *us, struct scsi_cmnd *srb)
 355 {
 356         int result;
 357         unsigned char *cdb = srb->cmnd;
 358         struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 359         struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
 360
 361         u32 bn = ((cdb[2] << 24) & 0xff000000) | ((cdb[3] << 16) & 0x00ff0000) |
 362                  ((cdb[4] << 8) & 0x0000ff00) | ((cdb[5] << 0) & 0x000000ff);
 363         u16 blen = ((cdb[7] << 8) & 0xff00) | ((cdb[8] << 0) & 0x00ff);
 364         u32 bnByte = bn * 0x200;
 365         u32 blenByte = blen * 0x200;
 366
 367         if (bn > info->bl_num)
 368                 return USB_STOR_TRANSPORT_ERROR;
 369
 370         result = ene_load_bincode(us, SD_RW_PATTERN);
 371         if (result != USB_STOR_XFER_GOOD) {
 372                 US_DEBUGP("Load SD RW pattern Fail !!\n");
 373                 return USB_STOR_TRANSPORT_ERROR;
 374         }
 375
 376         if (info->SD_Status.HiCapacity)
 377                 bnByte = bn;
 378
 379         /* set up the command wrapper */
 380         memset(bcb, 0, sizeof(struct bulk_cb_wrap));
 381         bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
 382         bcb->DataTransferLength = blenByte;
 383         bcb->Flags  = 0x80;
 384         bcb->CDB[0] = 0xF1;
 385         bcb->CDB[5] = (unsigned char)(bnByte);
 386         bcb->CDB[4] = (unsigned char)(bnByte>>8);
 387         bcb->CDB[3] = (unsigned char)(bnByte>>16);
 388         bcb->CDB[2] = (unsigned char)(bnByte>>24);
 389
 390         result = ene_send_scsi_cmd(us, FDIR_READ, scsi_sglist(srb), 1);
 391         return result;
 392 }
 393
 394 static int sd_scsi_write(struct us_data *us, struct scsi_cmnd *srb)
 395 {
 396         int result;
 397         unsigned char *cdb = srb->cmnd;
 398         struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 399         struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
 400
 401         u32 bn = ((cdb[2] << 24) & 0xff000000) | ((cdb[3] << 16) & 0x00ff0000) |
 402                  ((cdb[4] << 8) & 0x0000ff00) | ((cdb[5] << 0) & 0x000000ff);
 403         u16 blen = ((cdb[7] << 8) & 0xff00) | ((cdb[8] << 0) & 0x00ff);
 404         u32 bnByte = bn * 0x200;
 405         u32 blenByte = blen * 0x200;
 406
 407         if (bn > info->bl_num)
 408                 return USB_STOR_TRANSPORT_ERROR;
 409
 410         result = ene_load_bincode(us, SD_RW_PATTERN);
 411         if (result != USB_STOR_XFER_GOOD) {
 412                 US_DEBUGP("Load SD RW pattern Fail !!\n");
 413                 return USB_STOR_TRANSPORT_ERROR;
 414         }
 415
 416         if (info->SD_Status.HiCapacity)
 417                 bnByte = bn;
 418
 419         /* set up the command wrapper */
 420         memset(bcb, 0, sizeof(struct bulk_cb_wrap));
 421         bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
 422         bcb->DataTransferLength = blenByte;
 423         bcb->Flags  = 0x00;
 424         bcb->CDB[0] = 0xF0;
 425         bcb->CDB[5] = (unsigned char)(bnByte);
 426         bcb->CDB[4] = (unsigned char)(bnByte>>8);
 427         bcb->CDB[3] = (unsigned char)(bnByte>>16);
 428         bcb->CDB[2] = (unsigned char)(bnByte>>24);
 429
 430         result = ene_send_scsi_cmd(us, FDIR_WRITE, scsi_sglist(srb), 1);
 431         return result;
 432 }
 433
 434 static int ene_get_card_type(struct us_data *us, u16 index, void *buf)
 435 {
 436         struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 437         int result;
 438
 439         memset(bcb, 0, sizeof(struct bulk_cb_wrap));
 440         bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
 441         bcb->DataTransferLength = 0x01;
 442         bcb->Flags                      = 0x80;
 443         bcb->CDB[0]                     = 0xED;
 444         bcb->CDB[2]                     = (unsigned char)(index>>8);
 445         bcb->CDB[3]                     = (unsigned char)index;
 446
 447         result = ene_send_scsi_cmd(us, FDIR_READ, buf, 0);
 448         return result;
 449 }
 450
 451 static int ene_get_card_status(struct us_data *us, u8 *buf)
 452 {
 453         u16 tmpreg;
 454         u32 reg4b;
 455         struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
 456
 457         /*US_DEBUGP("transport --- ENE_ReadSDReg\n");*/
 458         reg4b = *(u32 *)&buf[0x18];
 459         info->SD_READ_BL_LEN = (u8)((reg4b >> 8) & 0x0f);
 460
 461         tmpreg = (u16) reg4b;
 462         reg4b = *(u32 *)(&buf[0x14]);
 463         if (info->SD_Status.HiCapacity && !info->SD_Status.IsMMC)
 464                 info->HC_C_SIZE = (reg4b >> 8) & 0x3fffff;
 465
 466         info->SD_C_SIZE = ((tmpreg & 0x03) << 10) | (u16)(reg4b >> 22);
 467         info->SD_C_SIZE_MULT = (u8)(reg4b >> 7)  & 0x07;
 468         if (info->SD_Status.HiCapacity && info->SD_Status.IsMMC)
 469                 info->HC_C_SIZE = *(u32 *)(&buf[0x100]);
 470
 471         if (info->SD_READ_BL_LEN > SD_BLOCK_LEN) {
 472                 info->SD_Block_Mult = 1 << (info->SD_READ_BL_LEN-SD_BLOCK_LEN);
 473                 info->SD_READ_BL_LEN = SD_BLOCK_LEN;
 474         } else {
 475                 info->SD_Block_Mult = 1;
 476         }
 477
 478         return USB_STOR_TRANSPORT_GOOD;
 479 }
 480
 481 static int ene_load_bincode(struct us_data *us, unsigned char flag)
 482 {
 483         int err;
 484         char *fw_name = NULL;
 485         unsigned char *buf = NULL;
 486         const struct firmware *sd_fw = NULL;
 487         int result = USB_STOR_TRANSPORT_ERROR;
 488         struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 489         struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
 490
 491         if (info->BIN_FLAG == flag)
 492                 return USB_STOR_TRANSPORT_GOOD;
 493
 494         switch (flag) {
 495         /* For SD */
 496         case SD_INIT1_PATTERN:
 497                 US_DEBUGP("SD_INIT1_PATTERN\n");
 498                 fw_name = "ene-ub6250/sd_init1.bin";
 499                 break;
 500         case SD_INIT2_PATTERN:
 501                 US_DEBUGP("SD_INIT2_PATTERN\n");
 502                 fw_name = "ene-ub6250/sd_init2.bin";
 503                 break;
 504         case SD_RW_PATTERN:
 505                 US_DEBUGP("SD_RDWR_PATTERN\n");
 506                 fw_name = "ene-ub6250/sd_rdwr.bin";
 507                 break;
 508         default:
 509                 US_DEBUGP("----------- Unknown PATTERN ----------\n");
 510                 goto nofw;
 511         }
 512
 513         err = request_firmware(&sd_fw, fw_name, &us->pusb_dev->dev);
 514         if (err) {
 515                 US_DEBUGP("load firmware %s failed\n", fw_name);
 516                 goto nofw;
 517         }
 518         buf = kmalloc(sd_fw->size, GFP_KERNEL);
 519         if (buf == NULL) {
 520                 US_DEBUGP("Malloc memory for fireware failed!\n");
 521                 goto nofw;
 522         }
 523         memcpy(buf, sd_fw->data, sd_fw->size);
 524         memset(bcb, 0, sizeof(struct bulk_cb_wrap));
 525         bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
 526         bcb->DataTransferLength = sd_fw->size;
 527         bcb->Flags = 0x00;
 528         bcb->CDB[0] = 0xEF;
 529
 530         result = ene_send_scsi_cmd(us, FDIR_WRITE, buf, 0);
 531         info->BIN_FLAG = flag;
 532         kfree(buf);
 533
 534 nofw:
 535         if (sd_fw != NULL) {
 536                 release_firmware(sd_fw);
 537                 sd_fw = NULL;
 538         }
 539
 540         return result;
 541 }
 542
 543 static int ene_sd_init(struct us_data *us)
 544 {
 545         int result;
 546         u8  buf[0x200];
 547         struct bulk_cb_wrap *bcb = (struct bulk_cb_wrap *) us->iobuf;
 548         struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
 549
 550         US_DEBUGP("transport --- ENE_SDInit\n");
 551         /* SD Init Part-1 */
 552         result = ene_load_bincode(us, SD_INIT1_PATTERN);
 553         if (result != USB_STOR_XFER_GOOD) {
 554                 US_DEBUGP("Load SD Init Code Part-1 Fail !!\n");
 555                 return USB_STOR_TRANSPORT_ERROR;
 556         }
 557
 558         memset(bcb, 0, sizeof(struct bulk_cb_wrap));
 559         bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
 560         bcb->Flags = 0x80;
 561         bcb->CDB[0] = 0xF2;
 562
 563         result = ene_send_scsi_cmd(us, FDIR_READ, NULL, 0);
 564         if (result != USB_STOR_XFER_GOOD) {
 565                 US_DEBUGP("Execution SD Init Code Fail !!\n");
 566                 return USB_STOR_TRANSPORT_ERROR;
 567         }
 568
 569         /* SD Init Part-2 */
 570         result = ene_load_bincode(us, SD_INIT2_PATTERN);
 571         if (result != USB_STOR_XFER_GOOD) {
 572                 US_DEBUGP("Load SD Init Code Part-2 Fail !!\n");
 573                 return USB_STOR_TRANSPORT_ERROR;
 574         }
 575
 576         memset(bcb, 0, sizeof(struct bulk_cb_wrap));
 577         bcb->Signature = cpu_to_le32(US_BULK_CB_SIGN);
 578         bcb->DataTransferLength = 0x200;
 579         bcb->Flags              = 0x80;
 580         bcb->CDB[0]             = 0xF1;
 581
 582         result = ene_send_scsi_cmd(us, FDIR_READ, &buf, 0);
 583         if (result != USB_STOR_XFER_GOOD) {
 584                 US_DEBUGP("Execution SD Init Code Fail !!\n");
 585                 return USB_STOR_TRANSPORT_ERROR;
 586         }
 587
 588         info->SD_Status =  *(struct SD_STATUS *)&buf[0];
 589         if (info->SD_Status.Insert && info->SD_Status.Ready) {
 590                 ene_get_card_status(us, (unsigned char *)&buf);
 591                 US_DEBUGP("Insert     = %x\n", info->SD_Status.Insert);
 592                 US_DEBUGP("Ready      = %x\n", info->SD_Status.Ready);
 593                 US_DEBUGP("IsMMC      = %x\n", info->SD_Status.IsMMC);
 594                 US_DEBUGP("HiCapacity = %x\n", info->SD_Status.HiCapacity);
 595                 US_DEBUGP("HiSpeed    = %x\n", info->SD_Status.HiSpeed);
 596                 US_DEBUGP("WtP        = %x\n", info->SD_Status.WtP);
 597         } else {
 598                 US_DEBUGP("SD Card Not Ready --- %x\n", buf[0]);
 599                 return USB_STOR_TRANSPORT_ERROR;
 600         }
 601         return USB_STOR_TRANSPORT_GOOD;
 602 }
 603
 604
 605 static int ene_init(struct us_data *us)
 606 {
 607         int result;
 608         u8  misc_reg03 = 0;
 609         struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
 610
 611         result = ene_get_card_type(us, REG_CARD_STATUS, &misc_reg03);
 612         if (result != USB_STOR_XFER_GOOD)
 613                 return USB_STOR_TRANSPORT_ERROR;
 614
 615         if (misc_reg03 & 0x01) {
 616                 if (!info->SD_Status.Ready) {
 617                         result = ene_sd_init(us);
 618                         if (result != USB_STOR_XFER_GOOD)
 619                                 return USB_STOR_TRANSPORT_ERROR;
 620                 }
 621         }
 622
 623         return result;
 624 }
 625
 626 /*----- sd_scsi_irp() ---------*/
 627 static int sd_scsi_irp(struct us_data *us, struct scsi_cmnd *srb)
 628 {
 629         int    result;
 630         struct ene_ub6250_info *info = (struct ene_ub6250_info *)us->extra;
 631
 632         info->SrbStatus = SS_SUCCESS;
 633         switch (srb->cmnd[0]) {
 634         case TEST_UNIT_READY:
 635                 result = sd_scsi_test_unit_ready(us, srb);
 636                 break; /* 0x00 */
 637         case INQUIRY:
 638                 result = sd_scsi_inquiry(us, srb);
 639                 break; /* 0x12 */
 640         case MODE_SENSE:
 641                 result = sd_scsi_mode_sense(us, srb);
 642                 break; /* 0x1A */
 643         /*
 644         case START_STOP:
 645                 result = SD_SCSI_Start_Stop(us, srb);
 646                 break; //0x1B
 647         */
 648         case READ_CAPACITY:
 649                 result = sd_scsi_read_capacity(us, srb);
 650                 break; /* 0x25 */
 651         case READ_10:
 652                 result = sd_scsi_read(us, srb);
 653                 break; /* 0x28 */
 654         case WRITE_10:
 655                 result = sd_scsi_write(us, srb);
 656                 break; /* 0x2A */
 657         default:
 658                 info->SrbStatus = SS_ILLEGAL_REQUEST;
 659                 result = USB_STOR_TRANSPORT_FAILED;
 660                 break;
 661         }
 662         return result;
 663 }
 664
 665 static int ene_transport(struct scsi_cmnd *srb, struct us_data *us)
 666 {
 667         int result = 0;
 668         struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
 669
 670         /*US_DEBUG(usb_stor_show_command(srb)); */
 671         scsi_set_resid(srb, 0);
 672         if (unlikely(!info->SD_Status.Ready))
 673                 result = ene_init(us);
 674         else
 675                 result = sd_scsi_irp(us, srb);
 676
 677         return 0;
 678 }
 679
 680
 681 static int ene_ub6250_probe(struct usb_interface *intf,
 682                          const struct usb_device_id *id)
 683 {
 684         int result;
 685         u8  misc_reg03 = 0;
 686         struct us_data *us;
 687
 688         result = usb_stor_probe1(&us, intf, id,
 689                    (id - ene_ub6250_usb_ids) + ene_ub6250_unusual_dev_list);
 690         if (result)
 691                 return result;
 692
 693         /* FIXME: where should the code alloc extra buf ? */
 694         if (!us->extra) {
 695                 us->extra = kzalloc(sizeof(struct ene_ub6250_info), GFP_KERNEL);
 696                 if (!us->extra)
 697                         return -ENOMEM;
 698                 us->extra_destructor = ene_ub6250_info_destructor;
 699         }
 700
 701         us->transport_name = "ene_ub6250";
 702         us->transport = ene_transport;
 703         us->max_lun = 0;
 704
 705         result = usb_stor_probe2(us);
 706         if (result)
 707                 return result;
 708
 709         /* probe card type */
 710         result = ene_get_card_type(us, REG_CARD_STATUS, &misc_reg03);
 711         if (result != USB_STOR_XFER_GOOD) {
 712                 usb_stor_disconnect(intf);
 713                 return USB_STOR_TRANSPORT_ERROR;
 714         }
 715
 716         if (!(misc_reg03 & 0x01)) {
 717                 result = -ENODEV;
 718                 printk(KERN_NOTICE "ums_eneub6250: The driver only supports SD card. "
 719                        "To use SM/MS card, please build driver/staging/keucr\n");
 720                 usb_stor_disconnect(intf);
 721         }
 722
 723         return result;
 724 }
 725
 726
 727 #ifdef CONFIG_PM
 728
 729 static int ene_ub6250_resume(struct usb_interface *iface)
 730 {
 731         u8 tmp = 0;
 732         struct us_data *us = usb_get_intfdata(iface);
 733         struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
 734
 735         mutex_lock(&us->dev_mutex);
 736
 737         US_DEBUGP("%s\n", __func__);
 738         if (us->suspend_resume_hook)
 739                 (us->suspend_resume_hook)(us, US_RESUME);
 740
 741         mutex_unlock(&us->dev_mutex);
 742
 743         info->Power_IsResum = true;
 744         /*info->SD_Status.Ready = 0; */
 745         info->SD_Status = *(struct SD_STATUS *)&tmp;
 746         info->MS_Status = *(struct MS_STATUS *)&tmp;
 747         info->SM_Status = *(struct SM_STATUS *)&tmp;
 748
 749         return 0;
 750 }
 751
 752 static int ene_ub6250_reset_resume(struct usb_interface *iface)
 753 {
 754         u8 tmp = 0;
 755         struct us_data *us = usb_get_intfdata(iface);
 756         struct ene_ub6250_info *info = (struct ene_ub6250_info *)(us->extra);
 757         US_DEBUGP("%s\n", __func__);
 758         /* Report the reset to the SCSI core */
 759         usb_stor_reset_resume(iface);
 760
 761         /* FIXME: Notify the subdrivers that they need to reinitialize
 762          * the device */
 763         info->Power_IsResum = true;
 764         /*info->SD_Status.Ready = 0; */
 765         info->SD_Status = *(struct SD_STATUS *)&tmp;
 766         info->MS_Status = *(struct MS_STATUS *)&tmp;
 767         info->SM_Status = *(struct SM_STATUS *)&tmp;
 768
 769         return 0;
 770 }
 771
 772 #else
 773
 774 #define ene_ub6250_resume               NULL
 775 #define ene_ub6250_reset_resume         NULL
 776
 777 #endif
 778
 779 static struct usb_driver ene_ub6250_driver = {
 780         .name =         "ums_eneub6250",
 781         .probe =        ene_ub6250_probe,
 782         .disconnect =   usb_stor_disconnect,
 783         .suspend =      usb_stor_suspend,
 784         .resume =       ene_ub6250_resume,
 785         .reset_resume = ene_ub6250_reset_resume,
 786         .pre_reset =    usb_stor_pre_reset,
 787         .post_reset =   usb_stor_post_reset,
 788         .id_table =     ene_ub6250_usb_ids,
 789         .soft_unbind =  1,
 790 };
 791
 792 static int __init ene_ub6250_init(void)
 793 {
 794         return usb_register(&ene_ub6250_driver);
 795 }
 796
 797 static void __exit ene_ub6250_exit(void)
 798 {
 799         usb_deregister(&ene_ub6250_driver);
 800 }
 801
 802 module_init(ene_ub6250_init);
 803 module_exit(ene_ub6250_exit);