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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 | /* Driver for Lexar "Jumpshot" Compact Flash reader * * jumpshot driver v0.1: * * First release * * Current development and maintenance by: * (c) 2000 Jimmie Mayfield (mayfield+usb@sackheads.org) * many thanks to Robert Baruch for the SanDisk SmartMedia reader driver * which I used as a template for this driver. * Some bugfixes and scatter-gather code by Gregory P. Smith * (greg-usb@electricrain.com) * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2, or (at your option) any * later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */ /* * This driver attempts to support the Lexar Jumpshot USB CompactFlash * reader. Like many other USB CompactFlash readers, the Jumpshot contains * a USB-to-ATA chip. * * This driver supports reading and writing. If you're truly paranoid, * however, you can force the driver into a write-protected state by setting * the WP enable bits in jumpshot_handle_mode_sense. Basically this means * setting mode_param_header[3] = 0x80. */ #include "transport.h" #include "protocol.h" #include "usb.h" #include "debug.h" #include "jumpshot.h" #include <linux/sched.h> #include <linux/errno.h> #include <linux/malloc.h> extern int usb_stor_control_msg(struct us_data *us, unsigned int pipe, u8 request, u8 requesttype, u16 value, u16 index, void *data, u16 size); extern int usb_stor_bulk_msg(struct us_data *us, void *data, int pipe, unsigned int len, unsigned int *act_len); #if 0 static void jumpshot_dump_data(unsigned char *data, int len) { unsigned char buf[80]; int sofar = 0; if (!data) return; memset(buf, 0, sizeof(buf)); for (sofar = 0; sofar < len; sofar++) { sprintf(buf + strlen(buf), "%02x ", ((unsigned int) data[sofar]) & 0xFF); if (sofar % 16 == 15) { US_DEBUGP("jumpshot: %s\n", buf); memset(buf, 0, sizeof(buf)); } } if (strlen(buf) != 0) US_DEBUGP("jumpshot: %s\n", buf); } #endif /* * Send a control message and wait for the response. * * us - the pointer to the us_data structure for the device to use * * request - the URB Setup Packet's first 6 bytes. The first byte always * corresponds to the request type, and the second byte always corresponds * to the request. The other 4 bytes do not correspond to value and index, * since they are used in a custom way by the SCM protocol. * * xfer_data - a buffer from which to get, or to which to store, any data * that gets send or received, respectively, with the URB. Even though * it looks like we allocate a buffer in this code for the data, xfer_data * must contain enough allocated space. * * xfer_len - the number of bytes to send or receive with the URB. * * This routine snarfed from the SanDisk SDDR-09 driver * */ static int jumpshot_send_control(struct us_data *us, int pipe, unsigned char request, unsigned char requesttype, unsigned short value, unsigned short index, unsigned char *xfer_data, unsigned int xfer_len) { int result; // Send the URB to the device and wait for a response. /* Why are request and request type reversed in this call? */ result = usb_stor_control_msg(us, pipe, request, requesttype, value, index, xfer_data, xfer_len); // Check the return code for the command. if (result < 0) { /* if the command was aborted, indicate that */ if (result == -ENOENT) return USB_STOR_TRANSPORT_ABORTED; /* a stall is a fatal condition from the device */ if (result == -EPIPE) { US_DEBUGP("jumpshot_send_control: -- Stall on control pipe. Clearing\n"); result = usb_clear_halt(us->pusb_dev, pipe); US_DEBUGP("jumpshot_send_control: -- usb_clear_halt() returns %d\n", result); return USB_STOR_TRANSPORT_FAILED; } /* Uh oh... serious problem here */ return USB_STOR_TRANSPORT_ERROR; } return USB_STOR_TRANSPORT_GOOD; } static int jumpshot_raw_bulk(int direction, struct us_data *us, unsigned char *data, unsigned int len) { int result; int act_len; int pipe; if (direction == SCSI_DATA_READ) pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in); else pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out); result = usb_stor_bulk_msg(us, data, pipe, len, &act_len); // if we stall, we need to clear it before we go on if (result == -EPIPE) { US_DEBUGP("jumpshot_raw_bulk: EPIPE. clearing endpoint halt for" " pipe 0x%x, stalled at %d bytes\n", pipe, act_len); usb_clear_halt(us->pusb_dev, pipe); } if (result) { // NAK - that means we've retried a few times already if (result == -ETIMEDOUT) { US_DEBUGP("jumpshot_raw_bulk: device NAKed\n"); return US_BULK_TRANSFER_FAILED; } // -ENOENT -- we canceled this transfer if (result == -ENOENT) { US_DEBUGP("jumpshot_raw_bulk: transfer aborted\n"); return US_BULK_TRANSFER_ABORTED; } if (result == -EPIPE) { US_DEBUGP("jumpshot_raw_bulk: output pipe stalled\n"); return USB_STOR_TRANSPORT_FAILED; } // the catch-all case US_DEBUGP("jumpshot_raw_bulk: unknown error\n"); return US_BULK_TRANSFER_FAILED; } if (act_len != len) { US_DEBUGP("jumpshot_raw_bulk: Warning. Transferred only %d bytes\n", act_len); return US_BULK_TRANSFER_SHORT; } US_DEBUGP("jumpshot_raw_bulk: Transfered %d of %d bytes\n", act_len, len); return US_BULK_TRANSFER_GOOD; } static inline int jumpshot_bulk_read(struct us_data *us, unsigned char *data, unsigned int len) { if (len == 0) return USB_STOR_TRANSPORT_GOOD; US_DEBUGP("jumpshot_bulk_read: len = %d\n", len); return jumpshot_raw_bulk(SCSI_DATA_READ, us, data, len); } static inline int jumpshot_bulk_write(struct us_data *us, unsigned char *data, unsigned int len) { if (len == 0) return USB_STOR_TRANSPORT_GOOD; US_DEBUGP("jumpshot_bulk_write: len = %d\n", len); return jumpshot_raw_bulk(SCSI_DATA_WRITE, us, data, len); } static int jumpshot_get_status(struct us_data *us) { unsigned char reply; int rc; if (!us) return USB_STOR_TRANSPORT_ERROR; // send the setup rc = jumpshot_send_control(us, usb_rcvctrlpipe(us->pusb_dev, 0), 0, 0xA0, 0, 7, &reply, 1); if (rc != USB_STOR_TRANSPORT_GOOD) return rc; if (reply != 0x50) { US_DEBUGP("jumpshot_get_status: 0x%2x\n", (unsigned short) (reply)); return USB_STOR_TRANSPORT_ERROR; } return USB_STOR_TRANSPORT_GOOD; } static int jumpshot_read_data(struct us_data *us, struct jumpshot_info *info, u32 sector, u32 sectors, unsigned char *dest, int use_sg) { unsigned char command[] = { 0, 0, 0, 0, 0, 0xe0, 0x20 }; unsigned char *buffer = NULL; unsigned char *ptr; unsigned char thistime; struct scatterlist *sg = NULL; int totallen, len, result; int sg_idx = 0, current_sg_offset = 0; int transferred; // we're working in LBA mode. according to the ATA spec, // we can support up to 28-bit addressing. I don't know if Jumpshot // supports beyond 24-bit addressing. It's kind of hard to test // since it requires > 8GB CF card. // if (sector > 0x0FFFFFFF) return USB_STOR_TRANSPORT_ERROR; // If we're using scatter-gather, we have to create a new // buffer to read all of the data in first, since a // scatter-gather buffer could in theory start in the middle // of a page, which would be bad. A developer who wants a // challenge might want to write a limited-buffer // version of this code. totallen = sectors * info->ssize; do { // loop, never allocate or transfer more than 64k at once (min(128k, 255*info->ssize) is the real limit) len = min(int, totallen, 65536); if (use_sg) { sg = (struct scatterlist *) dest; buffer = kmalloc(len, GFP_KERNEL); if (buffer == NULL) return USB_STOR_TRANSPORT_ERROR; ptr = buffer; } else { ptr = dest; } thistime = (len / info->ssize) & 0xff; command[0] = 0; command[1] = thistime; command[2] = sector & 0xFF; command[3] = (sector >> 8) & 0xFF; command[4] = (sector >> 16) & 0xFF; command[5] |= (sector >> 24) & 0x0F; // send the setup + command result = jumpshot_send_control(us, usb_sndctrlpipe(us->pusb_dev, 0), 0, 0x20, 0, 1, command, 7); if (result != USB_STOR_TRANSPORT_GOOD) { if (use_sg) kfree(buffer); return result; } // read the result result = jumpshot_bulk_read(us, ptr, len); if (result != USB_STOR_TRANSPORT_GOOD) { if (use_sg) kfree(buffer); return result; } US_DEBUGP("jumpshot_read_data: %d bytes\n", len); //jumpshot_dump_data(ptr, len); sectors -= thistime; sector += thistime; if (use_sg) { transferred = 0; while (sg_idx < use_sg && transferred < len) { if (len - transferred >= sg[sg_idx].length - current_sg_offset) { US_DEBUGP("jumpshot_read_data: adding %d bytes to %d byte sg buffer\n", sg[sg_idx].length - current_sg_offset, sg[sg_idx].length); memcpy(sg[sg_idx].address + current_sg_offset, buffer + transferred, sg[sg_idx].length - current_sg_offset); transferred += sg[sg_idx].length - current_sg_offset; current_sg_offset = 0; // on to the next sg buffer ++sg_idx; } else { US_DEBUGP("jumpshot_read_data: adding %d bytes to %d byte sg buffer\n", len - transferred, sg[sg_idx].length); memcpy(sg[sg_idx].address + current_sg_offset, buffer + transferred, len - transferred); current_sg_offset += len - transferred; // this sg buffer is only partially full and we're out of data to copy in break; } } kfree(buffer); } else { dest += len; } totallen -= len; } while (totallen > 0); return USB_STOR_TRANSPORT_GOOD; } static int jumpshot_write_data(struct us_data *us, struct jumpshot_info *info, u32 sector, u32 sectors, unsigned char *src, int use_sg) { unsigned char command[7] = { 0, 0, 0, 0, 0, 0xE0, 0x30 }; unsigned char *buffer = NULL; unsigned char *ptr; unsigned char thistime; struct scatterlist *sg = NULL; int totallen, len, result, waitcount; int sg_idx = 0, current_sg_offset = 0; int transferred; // we're working in LBA mode. according to the ATA spec, // we can support up to 28-bit addressing. I don't know if Jumpshot // supports beyond 24-bit addressing. It's kind of hard to test // since it requires > 8GB CF card. // if (sector > 0x0FFFFFFF) return USB_STOR_TRANSPORT_ERROR; // If we're using scatter-gather, we have to create a new // buffer to read all of the data in first, since a // scatter-gather buffer could in theory start in the middle // of a page, which would be bad. A developer who wants a // challenge might want to write a limited-buffer // version of this code. totallen = sectors * info->ssize; do { // loop, never allocate or transfer more than 64k at once (min(128k, 255*info->ssize) is the real limit) len = min(int, totallen, 65536); if (use_sg) { sg = (struct scatterlist *) src; buffer = kmalloc(len, GFP_KERNEL); if (buffer == NULL) return USB_STOR_TRANSPORT_ERROR; ptr = buffer; memset(buffer, 0, len); // copy the data from the sg bufs into the big contiguous buf // transferred = 0; while (transferred < len) { if (len - transferred >= sg[sg_idx].length - current_sg_offset) { US_DEBUGP("jumpshot_write_data: getting %d bytes from %d byte sg buffer\n", sg[sg_idx].length - current_sg_offset, sg[sg_idx].length); memcpy(ptr + transferred, sg[sg_idx].address + current_sg_offset, sg[sg_idx].length - current_sg_offset); transferred += sg[sg_idx].length - current_sg_offset; current_sg_offset = 0; // on to the next sg buffer ++sg_idx; } else { US_DEBUGP("jumpshot_write_data: getting %d bytes from %d byte sg buffer\n", len - transferred, sg[sg_idx].length); memcpy(ptr + transferred, sg[sg_idx].address + current_sg_offset, len - transferred); current_sg_offset += len - transferred; // we only copied part of this sg buffer break; } } } else { ptr = src; } thistime = (len / info->ssize) & 0xff; command[0] = 0; command[1] = thistime; command[2] = sector & 0xFF; command[3] = (sector >> 8) & 0xFF; command[4] = (sector >> 16) & 0xFF; command[5] |= (sector >> 24) & 0x0F; // send the setup + command result = jumpshot_send_control(us, usb_sndctrlpipe(us->pusb_dev, 0), 0, 0x20, 0, 1, command, 7); // send the data result = jumpshot_bulk_write(us, ptr, len); if (result != USB_STOR_TRANSPORT_GOOD) { if (use_sg) kfree(buffer); return result; } // read the result. apparently the bulk write can complete before the // jumpshot drive is finished writing. so we loop here until we // get a good return code waitcount = 0; do { result = jumpshot_get_status(us); if (result != USB_STOR_TRANSPORT_GOOD) { // I have not experimented to find the smallest value. // wait_ms(50); } } while ((result != USB_STOR_TRANSPORT_GOOD) && (waitcount < 10)); if (result != USB_STOR_TRANSPORT_GOOD) US_DEBUGP("jumpshot_write_data: Gah! Waitcount = 10. Bad write!?\n"); sectors -= thistime; sector += thistime; if (use_sg) { kfree(buffer); } else { src += len; } totallen -= len; } while (totallen > 0); return result; } static int jumpshot_id_device(struct us_data *us, struct jumpshot_info *info) { unsigned char command[2] = { 0xe0, 0xec }; unsigned char reply[512]; int rc; if (!us || !info) return USB_STOR_TRANSPORT_ERROR; // send the setup rc = jumpshot_send_control(us, usb_sndctrlpipe(us->pusb_dev, 0), 0, 0x20, 0, 6, command, 2); if (rc != USB_STOR_TRANSPORT_GOOD) { US_DEBUGP("jumpshot_id_device: Gah! send_control for read_capacity failed\n"); return rc; } // read the reply rc = jumpshot_bulk_read(us, reply, sizeof(reply)); if (rc != USB_STOR_TRANSPORT_GOOD) return rc; info->sectors = ((u32)(reply[117]) << 24) | ((u32)(reply[116]) << 16) | ((u32)(reply[115]) << 8) | ((u32)(reply[114]) ); return USB_STOR_TRANSPORT_GOOD; } static int jumpshot_handle_mode_sense(struct us_data *us, Scsi_Cmnd * srb, unsigned char *ptr, int sense_6) { unsigned char mode_param_header[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; unsigned char rw_err_page[12] = { 0x1, 0xA, 0x21, 1, 0, 0, 0, 0, 1, 0, 0, 0 }; unsigned char cache_page[12] = { 0x8, 0xA, 0x1, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; unsigned char rbac_page[12] = { 0x1B, 0xA, 0, 0x81, 0, 0, 0, 0, 0, 0, 0, 0 }; unsigned char timer_page[8] = { 0x1C, 0x6, 0, 0, 0, 0 }; unsigned char pc, page_code; unsigned short total_len = 0; unsigned short param_len, i = 0; if (sense_6) param_len = srb->cmnd[4]; else param_len = ((u32) (srb->cmnd[7]) >> 8) | ((u32) (srb->cmnd[8])); pc = srb->cmnd[2] >> 6; page_code = srb->cmnd[2] & 0x3F; switch (pc) { case 0x0: US_DEBUGP("jumpshot_handle_mode_sense: Current values\n"); break; case 0x1: US_DEBUGP("jumpshot_handle_mode_sense: Changeable values\n"); break; case 0x2: US_DEBUGP("jumpshot_handle_mode_sense: Default values\n"); break; case 0x3: US_DEBUGP("jumpshot_handle_mode_sense: Saves values\n"); break; } mode_param_header[3] = 0x80; // write enable switch (page_code) { case 0x0: // vendor-specific mode return USB_STOR_TRANSPORT_ERROR; case 0x1: total_len = sizeof(rw_err_page); mode_param_header[0] = total_len >> 8; mode_param_header[1] = total_len & 0xFF; mode_param_header[3] = 0x00; // WP enable: 0x80 memcpy(ptr, mode_param_header, sizeof(mode_param_header)); i += sizeof(mode_param_header); memcpy(ptr + i, rw_err_page, sizeof(rw_err_page)); break; case 0x8: total_len = sizeof(cache_page); mode_param_header[0] = total_len >> 8; mode_param_header[1] = total_len & 0xFF; mode_param_header[3] = 0x00; // WP enable: 0x80 memcpy(ptr, mode_param_header, sizeof(mode_param_header)); i += sizeof(mode_param_header); memcpy(ptr + i, cache_page, sizeof(cache_page)); break; case 0x1B: total_len = sizeof(rbac_page); mode_param_header[0] = total_len >> 8; mode_param_header[1] = total_len & 0xFF; mode_param_header[3] = 0x00; // WP enable: 0x80 memcpy(ptr, mode_param_header, sizeof(mode_param_header)); i += sizeof(mode_param_header); memcpy(ptr + i, rbac_page, sizeof(rbac_page)); break; case 0x1C: total_len = sizeof(timer_page); mode_param_header[0] = total_len >> 8; mode_param_header[1] = total_len & 0xFF; mode_param_header[3] = 0x00; // WP enable: 0x80 memcpy(ptr, mode_param_header, sizeof(mode_param_header)); i += sizeof(mode_param_header); memcpy(ptr + i, timer_page, sizeof(timer_page)); break; case 0x3F: total_len = sizeof(timer_page) + sizeof(rbac_page) + sizeof(cache_page) + sizeof(rw_err_page); mode_param_header[0] = total_len >> 8; mode_param_header[1] = total_len & 0xFF; mode_param_header[3] = 0x00; // WP enable: 0x80 memcpy(ptr, mode_param_header, sizeof(mode_param_header)); i += sizeof(mode_param_header); memcpy(ptr + i, timer_page, sizeof(timer_page)); i += sizeof(timer_page); memcpy(ptr + i, rbac_page, sizeof(rbac_page)); i += sizeof(rbac_page); memcpy(ptr + i, cache_page, sizeof(cache_page)); i += sizeof(cache_page); memcpy(ptr + i, rw_err_page, sizeof(rw_err_page)); break; } return USB_STOR_TRANSPORT_GOOD; } void jumpshot_info_destructor(void *extra) { // this routine is a placeholder... // currently, we don't allocate any extra blocks so we're okay } // Transport for the Lexar 'Jumpshot' // int jumpshot_transport(Scsi_Cmnd * srb, struct us_data *us) { struct jumpshot_info *info; int rc; unsigned long block, blocks; unsigned char *ptr = NULL; unsigned char inquiry_response[36] = { 0x00, 0x80, 0x00, 0x01, 0x1F, 0x00, 0x00, 0x00 }; if (!us->extra) { us->extra = kmalloc(sizeof(struct jumpshot_info), GFP_KERNEL); if (!us->extra) { US_DEBUGP("jumpshot_transport: Gah! Can't allocate storage for jumpshot info struct!\n"); return USB_STOR_TRANSPORT_ERROR; } memset(us->extra, 0, sizeof(struct jumpshot_info)); us->extra_destructor = jumpshot_info_destructor; } info = (struct jumpshot_info *) (us->extra); ptr = (unsigned char *) srb->request_buffer; if (srb->cmnd[0] == INQUIRY) { US_DEBUGP("jumpshot_transport: INQUIRY. Returning bogus response.\n"); memset(inquiry_response + 8, 0, 28); fill_inquiry_response(us, inquiry_response, 36); return USB_STOR_TRANSPORT_GOOD; } if (srb->cmnd[0] == READ_CAPACITY) { info->ssize = 0x200; // hard coded 512 byte sectors as per ATA spec rc = jumpshot_get_status(us); if (rc != USB_STOR_TRANSPORT_GOOD) return rc; rc = jumpshot_id_device(us, info); if (rc != USB_STOR_TRANSPORT_GOOD) return rc; US_DEBUGP("jumpshot_transport: READ_CAPACITY: %ld sectors, %ld bytes per sector\n", info->sectors, info->ssize); // build the reply // ptr[0] = (info->sectors >> 24) & 0xFF; ptr[1] = (info->sectors >> 16) & 0xFF; ptr[2] = (info->sectors >> 8) & 0xFF; ptr[3] = (info->sectors) & 0xFF; ptr[4] = (info->ssize >> 24) & 0xFF; ptr[5] = (info->ssize >> 16) & 0xFF; ptr[6] = (info->ssize >> 8) & 0xFF; ptr[7] = (info->ssize) & 0xFF; return USB_STOR_TRANSPORT_GOOD; } if (srb->cmnd[0] == MODE_SELECT_10) { US_DEBUGP("jumpshot_transport: Gah! MODE_SELECT_10.\n"); return USB_STOR_TRANSPORT_ERROR; } if (srb->cmnd[0] == READ_10) { block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); US_DEBUGP("jumpshot_transport: READ_10: read block 0x%04lx count %ld\n", block, blocks); return jumpshot_read_data(us, info, block, blocks, ptr, srb->use_sg); } if (srb->cmnd[0] == READ_12) { // I don't think we'll ever see a READ_12 but support it anyway... // block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) | ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9])); US_DEBUGP("jumpshot_transport: READ_12: read block 0x%04lx count %ld\n", block, blocks); return jumpshot_read_data(us, info, block, blocks, ptr, srb->use_sg); } if (srb->cmnd[0] == WRITE_10) { block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); blocks = ((u32)(srb->cmnd[7]) << 8) | ((u32)(srb->cmnd[8])); US_DEBUGP("jumpshot_transport: WRITE_10: write block 0x%04lx count %ld\n", block, blocks); return jumpshot_write_data(us, info, block, blocks, ptr, srb->use_sg); } if (srb->cmnd[0] == WRITE_12) { // I don't think we'll ever see a WRITE_12 but support it anyway... // block = ((u32)(srb->cmnd[2]) << 24) | ((u32)(srb->cmnd[3]) << 16) | ((u32)(srb->cmnd[4]) << 8) | ((u32)(srb->cmnd[5])); blocks = ((u32)(srb->cmnd[6]) << 24) | ((u32)(srb->cmnd[7]) << 16) | ((u32)(srb->cmnd[8]) << 8) | ((u32)(srb->cmnd[9])); US_DEBUGP("jumpshot_transport: WRITE_12: write block 0x%04lx count %ld\n", block, blocks); return jumpshot_write_data(us, info, block, blocks, ptr, srb->use_sg); } if (srb->cmnd[0] == TEST_UNIT_READY) { US_DEBUGP("jumpshot_transport: TEST_UNIT_READY.\n"); return jumpshot_get_status(us); } if (srb->cmnd[0] == REQUEST_SENSE) { US_DEBUGP("jumpshot_transport: REQUEST_SENSE. Returning NO SENSE for now\n"); ptr[0] = 0xF0; ptr[2] = info->sense_key; ptr[7] = 11; ptr[12] = info->sense_asc; ptr[13] = info->sense_ascq; return USB_STOR_TRANSPORT_GOOD; } if (srb->cmnd[0] == MODE_SENSE) { US_DEBUGP("jumpshot_transport: MODE_SENSE_6 detected\n"); return jumpshot_handle_mode_sense(us, srb, ptr, TRUE); } if (srb->cmnd[0] == MODE_SENSE_10) { US_DEBUGP("jumpshot_transport: MODE_SENSE_10 detected\n"); return jumpshot_handle_mode_sense(us, srb, ptr, FALSE); } if (srb->cmnd[0] == ALLOW_MEDIUM_REMOVAL) { // sure. whatever. not like we can stop the user from popping // the media out of the device (no locking doors, etc) // return USB_STOR_TRANSPORT_GOOD; } US_DEBUGP("jumpshot_transport: Gah! Unknown command: %d (0x%x)\n", srb->cmnd[0], srb->cmnd[0]); return USB_STOR_TRANSPORT_ERROR; } |