1 /* $FreeBSD$ */ 2 /*- 3 * Copyright (c) 2008,2011 Hans Petter Selasky. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 /* 28 * The following file contains code that will detect USB autoinstall 29 * disks. 30 * 31 * TODO: Potentially we could add code to automatically detect USB 32 * mass storage quirks for not supported SCSI commands! 33 */ 34 35 #include <sys/stdint.h> 36 #include <sys/stddef.h> 37 #include <sys/param.h> 38 #include <sys/queue.h> 39 #include <sys/types.h> 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/bus.h> 43 #include <sys/module.h> 44 #include <sys/lock.h> 45 #include <sys/mutex.h> 46 #include <sys/condvar.h> 47 #include <sys/sysctl.h> 48 #include <sys/sx.h> 49 #include <sys/unistd.h> 50 #include <sys/callout.h> 51 #include <sys/malloc.h> 52 #include <sys/priv.h> 53 54 #include <dev/usb/usb.h> 55 #include <dev/usb/usbdi.h> 56 #include <dev/usb/usbdi_util.h> 57 58 #define USB_DEBUG_VAR usb_debug 59 60 #include <dev/usb/usb_busdma.h> 61 #include <dev/usb/usb_process.h> 62 #include <dev/usb/usb_transfer.h> 63 #include <dev/usb/usb_msctest.h> 64 #include <dev/usb/usb_debug.h> 65 #include <dev/usb/usb_device.h> 66 #include <dev/usb/usb_request.h> 67 #include <dev/usb/usb_util.h> 68 #include <dev/usb/quirk/usb_quirk.h> 69 70 enum { 71 ST_COMMAND, 72 ST_DATA_RD, 73 ST_DATA_RD_CS, 74 ST_DATA_WR, 75 ST_DATA_WR_CS, 76 ST_STATUS, 77 ST_MAX, 78 }; 79 80 enum { 81 DIR_IN, 82 DIR_OUT, 83 DIR_NONE, 84 }; 85 86 #define SCSI_MAX_LEN 0x100 87 #define SCSI_INQ_LEN 0x24 88 #define SCSI_SENSE_LEN 0xFF 89 90 static uint8_t scsi_test_unit_ready[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; 91 static uint8_t scsi_inquiry[] = { 0x12, 0x00, 0x00, 0x00, SCSI_INQ_LEN, 0x00 }; 92 static uint8_t scsi_rezero_init[] = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00 }; 93 static uint8_t scsi_start_stop_unit[] = { 0x1b, 0x00, 0x00, 0x00, 0x02, 0x00 }; 94 static uint8_t scsi_ztestor_eject[] = { 0x85, 0x01, 0x01, 0x01, 0x18, 0x01, 95 0x01, 0x01, 0x01, 0x01, 0x00, 0x00 }; 96 static uint8_t scsi_cmotech_eject[] = { 0xff, 0x52, 0x44, 0x45, 0x56, 0x43, 97 0x48, 0x47 }; 98 static uint8_t scsi_huawei_eject[] = { 0x11, 0x06, 0x00, 0x00, 0x00, 0x00, 99 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 100 0x00, 0x00, 0x00, 0x00 }; 101 static uint8_t scsi_tct_eject[] = { 0x06, 0xf5, 0x04, 0x02, 0x52, 0x70 }; 102 static uint8_t scsi_sync_cache[] = { 0x35, 0x00, 0x00, 0x00, 0x00, 0x00, 103 0x00, 0x00, 0x00, 0x00 }; 104 static uint8_t scsi_request_sense[] = { 0x03, 0x00, 0x00, 0x00, 0x12, 0x00, 105 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; 106 107 #define BULK_SIZE 64 /* dummy */ 108 #define ERR_CSW_FAILED -1 109 110 /* Command Block Wrapper */ 111 struct bbb_cbw { 112 uDWord dCBWSignature; 113 #define CBWSIGNATURE 0x43425355 114 uDWord dCBWTag; 115 uDWord dCBWDataTransferLength; 116 uByte bCBWFlags; 117 #define CBWFLAGS_OUT 0x00 118 #define CBWFLAGS_IN 0x80 119 uByte bCBWLUN; 120 uByte bCDBLength; 121 #define CBWCDBLENGTH 16 122 uByte CBWCDB[CBWCDBLENGTH]; 123 } __packed; 124 125 /* Command Status Wrapper */ 126 struct bbb_csw { 127 uDWord dCSWSignature; 128 #define CSWSIGNATURE 0x53425355 129 uDWord dCSWTag; 130 uDWord dCSWDataResidue; 131 uByte bCSWStatus; 132 #define CSWSTATUS_GOOD 0x0 133 #define CSWSTATUS_FAILED 0x1 134 #define CSWSTATUS_PHASE 0x2 135 } __packed; 136 137 struct bbb_transfer { 138 struct mtx mtx; 139 struct cv cv; 140 struct bbb_cbw cbw; 141 struct bbb_csw csw; 142 143 struct usb_xfer *xfer[ST_MAX]; 144 145 uint8_t *data_ptr; 146 147 usb_size_t data_len; /* bytes */ 148 usb_size_t data_rem; /* bytes */ 149 usb_timeout_t data_timeout; /* ms */ 150 usb_frlength_t actlen; /* bytes */ 151 152 uint8_t cmd_len; /* bytes */ 153 uint8_t dir; 154 uint8_t lun; 155 uint8_t state; 156 uint8_t status_try; 157 int error; 158 159 uint8_t buffer[SCSI_MAX_LEN] __aligned(4); 160 }; 161 162 static usb_callback_t bbb_command_callback; 163 static usb_callback_t bbb_data_read_callback; 164 static usb_callback_t bbb_data_rd_cs_callback; 165 static usb_callback_t bbb_data_write_callback; 166 static usb_callback_t bbb_data_wr_cs_callback; 167 static usb_callback_t bbb_status_callback; 168 169 static void bbb_done(struct bbb_transfer *, int); 170 static void bbb_transfer_start(struct bbb_transfer *, uint8_t); 171 static void bbb_data_clear_stall_callback(struct usb_xfer *, uint8_t, 172 uint8_t); 173 static int bbb_command_start(struct bbb_transfer *, uint8_t, uint8_t, 174 void *, size_t, void *, size_t, usb_timeout_t); 175 static struct bbb_transfer *bbb_attach(struct usb_device *, uint8_t); 176 static void bbb_detach(struct bbb_transfer *); 177 178 static const struct usb_config bbb_config[ST_MAX] = { 179 180 [ST_COMMAND] = { 181 .type = UE_BULK, 182 .endpoint = UE_ADDR_ANY, 183 .direction = UE_DIR_OUT, 184 .bufsize = sizeof(struct bbb_cbw), 185 .flags = {.ext_buffer = 1,}, 186 .callback = &bbb_command_callback, 187 .timeout = 4 * USB_MS_HZ, /* 4 seconds */ 188 }, 189 190 [ST_DATA_RD] = { 191 .type = UE_BULK, 192 .endpoint = UE_ADDR_ANY, 193 .direction = UE_DIR_IN, 194 .bufsize = BULK_SIZE, 195 .flags = {.ext_buffer = 1,.proxy_buffer = 1,.short_xfer_ok = 1,}, 196 .callback = &bbb_data_read_callback, 197 .timeout = 4 * USB_MS_HZ, /* 4 seconds */ 198 }, 199 200 [ST_DATA_RD_CS] = { 201 .type = UE_CONTROL, 202 .endpoint = 0x00, /* Control pipe */ 203 .direction = UE_DIR_ANY, 204 .bufsize = sizeof(struct usb_device_request), 205 .callback = &bbb_data_rd_cs_callback, 206 .timeout = 1 * USB_MS_HZ, /* 1 second */ 207 }, 208 209 [ST_DATA_WR] = { 210 .type = UE_BULK, 211 .endpoint = UE_ADDR_ANY, 212 .direction = UE_DIR_OUT, 213 .bufsize = BULK_SIZE, 214 .flags = {.ext_buffer = 1,.proxy_buffer = 1,}, 215 .callback = &bbb_data_write_callback, 216 .timeout = 4 * USB_MS_HZ, /* 4 seconds */ 217 }, 218 219 [ST_DATA_WR_CS] = { 220 .type = UE_CONTROL, 221 .endpoint = 0x00, /* Control pipe */ 222 .direction = UE_DIR_ANY, 223 .bufsize = sizeof(struct usb_device_request), 224 .callback = &bbb_data_wr_cs_callback, 225 .timeout = 1 * USB_MS_HZ, /* 1 second */ 226 }, 227 228 [ST_STATUS] = { 229 .type = UE_BULK, 230 .endpoint = UE_ADDR_ANY, 231 .direction = UE_DIR_IN, 232 .bufsize = sizeof(struct bbb_csw), 233 .flags = {.ext_buffer = 1,.short_xfer_ok = 1,}, 234 .callback = &bbb_status_callback, 235 .timeout = 1 * USB_MS_HZ, /* 1 second */ 236 }, 237 }; 238 239 static void 240 bbb_done(struct bbb_transfer *sc, int error) 241 { 242 243 sc->error = error; 244 sc->state = ST_COMMAND; 245 sc->status_try = 1; 246 cv_signal(&sc->cv); 247 } 248 249 static void 250 bbb_transfer_start(struct bbb_transfer *sc, uint8_t xfer_index) 251 { 252 sc->state = xfer_index; 253 usbd_transfer_start(sc->xfer[xfer_index]); 254 } 255 256 static void 257 bbb_data_clear_stall_callback(struct usb_xfer *xfer, 258 uint8_t next_xfer, uint8_t stall_xfer) 259 { 260 struct bbb_transfer *sc = usbd_xfer_softc(xfer); 261 262 if (usbd_clear_stall_callback(xfer, sc->xfer[stall_xfer])) { 263 switch (USB_GET_STATE(xfer)) { 264 case USB_ST_SETUP: 265 case USB_ST_TRANSFERRED: 266 bbb_transfer_start(sc, next_xfer); 267 break; 268 default: 269 bbb_done(sc, USB_ERR_STALLED); 270 break; 271 } 272 } 273 } 274 275 static void 276 bbb_command_callback(struct usb_xfer *xfer, usb_error_t error) 277 { 278 struct bbb_transfer *sc = usbd_xfer_softc(xfer); 279 uint32_t tag; 280 281 switch (USB_GET_STATE(xfer)) { 282 case USB_ST_TRANSFERRED: 283 bbb_transfer_start 284 (sc, ((sc->dir == DIR_IN) ? ST_DATA_RD : 285 (sc->dir == DIR_OUT) ? ST_DATA_WR : 286 ST_STATUS)); 287 break; 288 289 case USB_ST_SETUP: 290 sc->status_try = 0; 291 tag = UGETDW(sc->cbw.dCBWTag) + 1; 292 USETDW(sc->cbw.dCBWSignature, CBWSIGNATURE); 293 USETDW(sc->cbw.dCBWTag, tag); 294 USETDW(sc->cbw.dCBWDataTransferLength, (uint32_t)sc->data_len); 295 sc->cbw.bCBWFlags = ((sc->dir == DIR_IN) ? CBWFLAGS_IN : CBWFLAGS_OUT); 296 sc->cbw.bCBWLUN = sc->lun; 297 sc->cbw.bCDBLength = sc->cmd_len; 298 if (sc->cbw.bCDBLength > sizeof(sc->cbw.CBWCDB)) { 299 sc->cbw.bCDBLength = sizeof(sc->cbw.CBWCDB); 300 DPRINTFN(0, "Truncating long command\n"); 301 } 302 usbd_xfer_set_frame_data(xfer, 0, &sc->cbw, sizeof(sc->cbw)); 303 usbd_transfer_submit(xfer); 304 break; 305 306 default: /* Error */ 307 bbb_done(sc, error); 308 break; 309 } 310 } 311 312 static void 313 bbb_data_read_callback(struct usb_xfer *xfer, usb_error_t error) 314 { 315 struct bbb_transfer *sc = usbd_xfer_softc(xfer); 316 usb_frlength_t max_bulk = usbd_xfer_max_len(xfer); 317 int actlen, sumlen; 318 319 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 320 321 switch (USB_GET_STATE(xfer)) { 322 case USB_ST_TRANSFERRED: 323 sc->data_rem -= actlen; 324 sc->data_ptr += actlen; 325 sc->actlen += actlen; 326 327 if (actlen < sumlen) { 328 /* short transfer */ 329 sc->data_rem = 0; 330 } 331 case USB_ST_SETUP: 332 DPRINTF("max_bulk=%d, data_rem=%d\n", 333 max_bulk, sc->data_rem); 334 335 if (sc->data_rem == 0) { 336 bbb_transfer_start(sc, ST_STATUS); 337 break; 338 } 339 if (max_bulk > sc->data_rem) { 340 max_bulk = sc->data_rem; 341 } 342 usbd_xfer_set_timeout(xfer, sc->data_timeout); 343 usbd_xfer_set_frame_data(xfer, 0, sc->data_ptr, max_bulk); 344 usbd_transfer_submit(xfer); 345 break; 346 347 default: /* Error */ 348 if (error == USB_ERR_CANCELLED) { 349 bbb_done(sc, error); 350 } else { 351 bbb_transfer_start(sc, ST_DATA_RD_CS); 352 } 353 break; 354 } 355 } 356 357 static void 358 bbb_data_rd_cs_callback(struct usb_xfer *xfer, usb_error_t error) 359 { 360 bbb_data_clear_stall_callback(xfer, ST_STATUS, 361 ST_DATA_RD); 362 } 363 364 static void 365 bbb_data_write_callback(struct usb_xfer *xfer, usb_error_t error) 366 { 367 struct bbb_transfer *sc = usbd_xfer_softc(xfer); 368 usb_frlength_t max_bulk = usbd_xfer_max_len(xfer); 369 int actlen, sumlen; 370 371 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 372 373 switch (USB_GET_STATE(xfer)) { 374 case USB_ST_TRANSFERRED: 375 sc->data_rem -= actlen; 376 sc->data_ptr += actlen; 377 sc->actlen += actlen; 378 379 if (actlen < sumlen) { 380 /* short transfer */ 381 sc->data_rem = 0; 382 } 383 case USB_ST_SETUP: 384 DPRINTF("max_bulk=%d, data_rem=%d\n", 385 max_bulk, sc->data_rem); 386 387 if (sc->data_rem == 0) { 388 bbb_transfer_start(sc, ST_STATUS); 389 return; 390 } 391 if (max_bulk > sc->data_rem) { 392 max_bulk = sc->data_rem; 393 } 394 usbd_xfer_set_timeout(xfer, sc->data_timeout); 395 usbd_xfer_set_frame_data(xfer, 0, sc->data_ptr, max_bulk); 396 usbd_transfer_submit(xfer); 397 return; 398 399 default: /* Error */ 400 if (error == USB_ERR_CANCELLED) { 401 bbb_done(sc, error); 402 } else { 403 bbb_transfer_start(sc, ST_DATA_WR_CS); 404 } 405 return; 406 407 } 408 } 409 410 static void 411 bbb_data_wr_cs_callback(struct usb_xfer *xfer, usb_error_t error) 412 { 413 bbb_data_clear_stall_callback(xfer, ST_STATUS, 414 ST_DATA_WR); 415 } 416 417 static void 418 bbb_status_callback(struct usb_xfer *xfer, usb_error_t error) 419 { 420 struct bbb_transfer *sc = usbd_xfer_softc(xfer); 421 int actlen; 422 int sumlen; 423 424 usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL); 425 426 switch (USB_GET_STATE(xfer)) { 427 case USB_ST_TRANSFERRED: 428 429 /* very simple status check */ 430 431 if (actlen < (int)sizeof(sc->csw)) { 432 bbb_done(sc, USB_ERR_SHORT_XFER); 433 } else if (sc->csw.bCSWStatus == CSWSTATUS_GOOD) { 434 bbb_done(sc, 0); /* success */ 435 } else { 436 bbb_done(sc, ERR_CSW_FAILED); /* error */ 437 } 438 break; 439 440 case USB_ST_SETUP: 441 usbd_xfer_set_frame_data(xfer, 0, &sc->csw, sizeof(sc->csw)); 442 usbd_transfer_submit(xfer); 443 break; 444 445 default: 446 DPRINTF("Failed to read CSW: %s, try %d\n", 447 usbd_errstr(error), sc->status_try); 448 449 if (error == USB_ERR_CANCELLED || sc->status_try) { 450 bbb_done(sc, error); 451 } else { 452 sc->status_try = 1; 453 bbb_transfer_start(sc, ST_DATA_RD_CS); 454 } 455 break; 456 } 457 } 458 459 /*------------------------------------------------------------------------* 460 * bbb_command_start - execute a SCSI command synchronously 461 * 462 * Return values 463 * 0: Success 464 * Else: Failure 465 *------------------------------------------------------------------------*/ 466 static int 467 bbb_command_start(struct bbb_transfer *sc, uint8_t dir, uint8_t lun, 468 void *data_ptr, size_t data_len, void *cmd_ptr, size_t cmd_len, 469 usb_timeout_t data_timeout) 470 { 471 sc->lun = lun; 472 sc->dir = data_len ? dir : DIR_NONE; 473 sc->data_ptr = data_ptr; 474 sc->data_len = data_len; 475 sc->data_rem = data_len; 476 sc->data_timeout = (data_timeout + USB_MS_HZ); 477 sc->actlen = 0; 478 sc->cmd_len = cmd_len; 479 memset(&sc->cbw.CBWCDB, 0, sizeof(sc->cbw.CBWCDB)); 480 memcpy(&sc->cbw.CBWCDB, cmd_ptr, cmd_len); 481 DPRINTFN(1, "SCSI cmd = %*D\n", (int)cmd_len, (char *)sc->cbw.CBWCDB, ":"); 482 483 mtx_lock(&sc->mtx); 484 usbd_transfer_start(sc->xfer[sc->state]); 485 486 while (usbd_transfer_pending(sc->xfer[sc->state])) { 487 cv_wait(&sc->cv, &sc->mtx); 488 } 489 mtx_unlock(&sc->mtx); 490 return (sc->error); 491 } 492 493 static struct bbb_transfer * 494 bbb_attach(struct usb_device *udev, uint8_t iface_index) 495 { 496 struct usb_interface *iface; 497 struct usb_interface_descriptor *id; 498 struct bbb_transfer *sc; 499 usb_error_t err; 500 uint8_t do_unlock; 501 502 /* automatic locking */ 503 if (usbd_enum_is_locked(udev)) { 504 do_unlock = 0; 505 } else { 506 do_unlock = 1; 507 usbd_enum_lock(udev); 508 } 509 510 /* 511 * Make sure any driver which is hooked up to this interface, 512 * like umass is gone: 513 */ 514 usb_detach_device(udev, iface_index, 0); 515 516 if (do_unlock) 517 usbd_enum_unlock(udev); 518 519 iface = usbd_get_iface(udev, iface_index); 520 if (iface == NULL) 521 return (NULL); 522 523 id = iface->idesc; 524 if (id == NULL || id->bInterfaceClass != UICLASS_MASS) 525 return (NULL); 526 527 switch (id->bInterfaceSubClass) { 528 case UISUBCLASS_SCSI: 529 case UISUBCLASS_UFI: 530 case UISUBCLASS_SFF8020I: 531 case UISUBCLASS_SFF8070I: 532 break; 533 default: 534 return (NULL); 535 } 536 537 switch (id->bInterfaceProtocol) { 538 case UIPROTO_MASS_BBB_OLD: 539 case UIPROTO_MASS_BBB: 540 break; 541 default: 542 return (NULL); 543 } 544 545 sc = malloc(sizeof(*sc), M_USB, M_WAITOK | M_ZERO); 546 mtx_init(&sc->mtx, "USB autoinstall", NULL, MTX_DEF); 547 cv_init(&sc->cv, "WBBB"); 548 549 err = usbd_transfer_setup(udev, &iface_index, sc->xfer, bbb_config, 550 ST_MAX, sc, &sc->mtx); 551 if (err) { 552 bbb_detach(sc); 553 return (NULL); 554 } 555 return (sc); 556 } 557 558 static void 559 bbb_detach(struct bbb_transfer *sc) 560 { 561 usbd_transfer_unsetup(sc->xfer, ST_MAX); 562 mtx_destroy(&sc->mtx); 563 cv_destroy(&sc->cv); 564 free(sc, M_USB); 565 } 566 567 /*------------------------------------------------------------------------* 568 * usb_iface_is_cdrom 569 * 570 * Return values: 571 * 1: This interface is an auto install disk (CD-ROM) 572 * 0: Not an auto install disk. 573 *------------------------------------------------------------------------*/ 574 int 575 usb_iface_is_cdrom(struct usb_device *udev, uint8_t iface_index) 576 { 577 struct bbb_transfer *sc; 578 uint8_t timeout; 579 uint8_t is_cdrom; 580 uint8_t sid_type; 581 int err; 582 583 sc = bbb_attach(udev, iface_index); 584 if (sc == NULL) 585 return (0); 586 587 is_cdrom = 0; 588 timeout = 4; /* tries */ 589 while (--timeout) { 590 err = bbb_command_start(sc, DIR_IN, 0, sc->buffer, 591 SCSI_INQ_LEN, &scsi_inquiry, sizeof(scsi_inquiry), 592 USB_MS_HZ); 593 594 if (err == 0 && sc->actlen > 0) { 595 sid_type = sc->buffer[0] & 0x1F; 596 if (sid_type == 0x05) 597 is_cdrom = 1; 598 break; 599 } else if (err != ERR_CSW_FAILED) 600 break; /* non retryable error */ 601 usb_pause_mtx(NULL, hz); 602 } 603 bbb_detach(sc); 604 return (is_cdrom); 605 } 606 607 static uint8_t 608 usb_msc_get_max_lun(struct usb_device *udev, uint8_t iface_index) 609 { 610 struct usb_device_request req; 611 usb_error_t err; 612 uint8_t buf = 0; 613 614 615 /* The Get Max Lun command is a class-specific request. */ 616 req.bmRequestType = UT_READ_CLASS_INTERFACE; 617 req.bRequest = 0xFE; /* GET_MAX_LUN */ 618 USETW(req.wValue, 0); 619 req.wIndex[0] = iface_index; 620 req.wIndex[1] = 0; 621 USETW(req.wLength, 1); 622 623 err = usbd_do_request(udev, NULL, &req, &buf); 624 if (err) 625 buf = 0; 626 627 return (buf); 628 } 629 630 usb_error_t 631 usb_msc_auto_quirk(struct usb_device *udev, uint8_t iface_index) 632 { 633 struct bbb_transfer *sc; 634 uint8_t timeout; 635 uint8_t is_no_direct; 636 uint8_t sid_type; 637 int err; 638 639 sc = bbb_attach(udev, iface_index); 640 if (sc == NULL) 641 return (0); 642 643 /* 644 * Some devices need a delay after that the configuration 645 * value is set to function properly: 646 */ 647 usb_pause_mtx(NULL, hz); 648 649 if (usb_msc_get_max_lun(udev, iface_index) == 0) { 650 DPRINTF("Device has only got one LUN.\n"); 651 usbd_add_dynamic_quirk(udev, UQ_MSC_NO_GETMAXLUN); 652 } 653 654 is_no_direct = 1; 655 for (timeout = 4; timeout; timeout--) { 656 err = bbb_command_start(sc, DIR_IN, 0, sc->buffer, 657 SCSI_INQ_LEN, &scsi_inquiry, sizeof(scsi_inquiry), 658 USB_MS_HZ); 659 660 if (err == 0 && sc->actlen > 0) { 661 sid_type = sc->buffer[0] & 0x1F; 662 if (sid_type == 0x00) 663 is_no_direct = 0; 664 break; 665 } else if (err != ERR_CSW_FAILED) 666 break; /* non retryable error */ 667 usb_pause_mtx(NULL, hz); 668 } 669 670 if (is_no_direct) { 671 DPRINTF("Device is not direct access.\n"); 672 goto done; 673 } 674 675 err = bbb_command_start(sc, DIR_IN, 0, NULL, 0, 676 &scsi_test_unit_ready, sizeof(scsi_test_unit_ready), 677 USB_MS_HZ); 678 679 if (err != 0) { 680 681 if (err != ERR_CSW_FAILED) 682 goto error; 683 } 684 685 err = bbb_command_start(sc, DIR_IN, 0, NULL, 0, 686 &scsi_sync_cache, sizeof(scsi_sync_cache), 687 USB_MS_HZ); 688 689 if (err != 0) { 690 691 if (err != ERR_CSW_FAILED) 692 goto error; 693 694 DPRINTF("Device doesn't handle synchronize cache\n"); 695 696 usbd_add_dynamic_quirk(udev, UQ_MSC_NO_SYNC_CACHE); 697 } 698 699 /* clear sense status of any failed commands on the device */ 700 701 err = bbb_command_start(sc, DIR_IN, 0, sc->buffer, 702 SCSI_INQ_LEN, &scsi_inquiry, sizeof(scsi_inquiry), 703 USB_MS_HZ); 704 705 DPRINTF("Inquiry = %d\n", err); 706 707 if (err != 0) { 708 709 if (err != ERR_CSW_FAILED) 710 goto error; 711 } 712 713 err = bbb_command_start(sc, DIR_IN, 0, sc->buffer, 714 SCSI_SENSE_LEN, &scsi_request_sense, 715 sizeof(scsi_request_sense), USB_MS_HZ); 716 717 DPRINTF("Request sense = %d\n", err); 718 719 if (err != 0) { 720 721 if (err != ERR_CSW_FAILED) 722 goto error; 723 } 724 725 done: 726 bbb_detach(sc); 727 return (0); 728 729 error: 730 bbb_detach(sc); 731 732 DPRINTF("Device did not respond, enabling all quirks\n"); 733 734 usbd_add_dynamic_quirk(udev, UQ_MSC_NO_SYNC_CACHE); 735 usbd_add_dynamic_quirk(udev, UQ_MSC_NO_TEST_UNIT_READY); 736 737 /* Need to re-enumerate the device */ 738 usbd_req_re_enumerate(udev, NULL); 739 740 return (USB_ERR_STALLED); 741 } 742 743 usb_error_t 744 usb_msc_eject(struct usb_device *udev, uint8_t iface_index, int method) 745 { 746 struct bbb_transfer *sc; 747 usb_error_t err; 748 749 sc = bbb_attach(udev, iface_index); 750 if (sc == NULL) 751 return (USB_ERR_INVAL); 752 753 err = 0; 754 switch (method) { 755 case MSC_EJECT_STOPUNIT: 756 err = bbb_command_start(sc, DIR_IN, 0, NULL, 0, 757 &scsi_test_unit_ready, sizeof(scsi_test_unit_ready), 758 USB_MS_HZ); 759 DPRINTF("Test unit ready status: %s\n", usbd_errstr(err)); 760 err = bbb_command_start(sc, DIR_IN, 0, NULL, 0, 761 &scsi_start_stop_unit, sizeof(scsi_start_stop_unit), 762 USB_MS_HZ); 763 break; 764 case MSC_EJECT_REZERO: 765 err = bbb_command_start(sc, DIR_IN, 0, NULL, 0, 766 &scsi_rezero_init, sizeof(scsi_rezero_init), 767 USB_MS_HZ); 768 break; 769 case MSC_EJECT_ZTESTOR: 770 err = bbb_command_start(sc, DIR_IN, 0, NULL, 0, 771 &scsi_ztestor_eject, sizeof(scsi_ztestor_eject), 772 USB_MS_HZ); 773 break; 774 case MSC_EJECT_CMOTECH: 775 err = bbb_command_start(sc, DIR_IN, 0, NULL, 0, 776 &scsi_cmotech_eject, sizeof(scsi_cmotech_eject), 777 USB_MS_HZ); 778 break; 779 case MSC_EJECT_HUAWEI: 780 err = bbb_command_start(sc, DIR_IN, 0, NULL, 0, 781 &scsi_huawei_eject, sizeof(scsi_huawei_eject), 782 USB_MS_HZ); 783 break; 784 case MSC_EJECT_TCT: 785 /* 786 * TCTMobile needs DIR_IN flag. To get it, we 787 * supply a dummy data with the command. 788 */ 789 err = bbb_command_start(sc, DIR_IN, 0, &sc->buffer, 790 sizeof(sc->buffer), &scsi_tct_eject, 791 sizeof(scsi_tct_eject), USB_MS_HZ); 792 break; 793 default: 794 printf("usb_msc_eject: unknown eject method (%d)\n", method); 795 break; 796 } 797 DPRINTF("Eject CD command status: %s\n", usbd_errstr(err)); 798 799 bbb_detach(sc); 800 return (0); 801 } 802