umass.c revision 1.141.6.5
1 /* $NetBSD: umass.c,v 1.141.6.5 2012/03/06 09:56:22 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /*- 33 * Copyright (c) 1999 MAEKAWA Masahide <bishop (at) rr.iij4u.or.jp>, 34 * Nick Hibma <n_hibma (at) freebsd.org> 35 * All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 49 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 56 * SUCH DAMAGE. 57 * 58 * $FreeBSD: src/sys/dev/usb/umass.c,v 1.13 2000/03/26 01:39:12 n_hibma Exp $ 59 */ 60 61 /* 62 * Universal Serial Bus Mass Storage Class specs: 63 * http://www.usb.org/developers/devclass_docs/usb_msc_overview_1.2.pdf 64 * http://www.usb.org/developers/devclass_docs/usbmassbulk_10.pdf 65 * http://www.usb.org/developers/devclass_docs/usb_msc_cbi_1.1.pdf 66 * http://www.usb.org/developers/devclass_docs/usbmass-ufi10.pdf 67 */ 68 69 /* 70 * Ported to NetBSD by Lennart Augustsson <augustss (at) NetBSD.org>. 71 * Parts of the code written by Jason R. Thorpe <thorpej (at) shagadelic.org>. 72 */ 73 74 /* 75 * The driver handles 3 Wire Protocols 76 * - Command/Bulk/Interrupt (CBI) 77 * - Command/Bulk/Interrupt with Command Completion Interrupt (CBI with CCI) 78 * - Mass Storage Bulk-Only (BBB) 79 * (BBB refers Bulk/Bulk/Bulk for Command/Data/Status phases) 80 * 81 * Over these wire protocols it handles the following command protocols 82 * - SCSI 83 * - 8070 (ATA/ATAPI for rewritable removable media) 84 * - UFI (USB Floppy Interface) 85 * 86 * 8070i is a transformed version of the SCSI command set. UFI is a transformed 87 * version of the 8070i command set. The sc->transform method is used to 88 * convert the commands into the appropriate format (if at all necessary). 89 * For example, ATAPI requires all commands to be 12 bytes in length amongst 90 * other things. 91 * 92 * The source code below is marked and can be split into a number of pieces 93 * (in this order): 94 * 95 * - probe/attach/detach 96 * - generic transfer routines 97 * - BBB 98 * - CBI 99 * - CBI_I (in addition to functions from CBI) 100 * - CAM (Common Access Method) 101 * - SCSI 102 * - UFI 103 * - 8070i 104 * 105 * The protocols are implemented using a state machine, for the transfers as 106 * well as for the resets. The state machine is contained in umass_*_state. 107 * The state machine is started through either umass_*_transfer or 108 * umass_*_reset. 109 * 110 * The reason for doing this is a) CAM performs a lot better this way and b) it 111 * avoids using tsleep from interrupt context (for example after a failed 112 * transfer). 113 */ 114 115 /* 116 * The SCSI related part of this driver has been derived from the 117 * dev/ppbus/vpo.c driver, by Nicolas Souchu (nsouch (at) freebsd.org). 118 * 119 * The CAM layer uses so called actions which are messages sent to the host 120 * adapter for completion. The actions come in through umass_cam_action. The 121 * appropriate block of routines is called depending on the transport protocol 122 * in use. When the transfer has finished, these routines call 123 * umass_cam_cb again to complete the CAM command. 124 */ 125 126 #include <sys/cdefs.h> 127 __KERNEL_RCSID(0, "$NetBSD: umass.c,v 1.141.6.5 2012/03/06 09:56:22 mrg Exp $"); 128 129 #ifdef _KERNEL_OPT 130 #include "opt_umass.h" 131 #endif 132 133 #include "atapibus.h" 134 #include "scsibus.h" 135 #include "wd.h" 136 137 #include <sys/param.h> 138 #include <sys/systm.h> 139 #include <sys/kernel.h> 140 #include <sys/conf.h> 141 #include <sys/buf.h> 142 #include <sys/device.h> 143 #include <sys/malloc.h> 144 145 #include <dev/usb/usb.h> 146 #include <dev/usb/usbdi.h> 147 #include <dev/usb/usbdi_util.h> 148 #include <dev/usb/usbdevs.h> 149 150 #include <dev/usb/umassvar.h> 151 #include <dev/usb/umass_quirks.h> 152 #include <dev/usb/umass_scsipi.h> 153 #include <dev/usb/umass_isdata.h> 154 155 #include <dev/scsipi/scsipi_all.h> 156 #include <dev/scsipi/scsipiconf.h> 157 158 159 #ifdef UMASS_DEBUG 160 int umassdebug = 0; 161 162 const char *states[TSTATE_STATES+1] = { 163 /* should be kept in sync with the list at transfer_state */ 164 "Idle", 165 "BBB CBW", 166 "BBB Data", 167 "BBB Data bulk-in/-out clear stall", 168 "BBB CSW, 1st attempt", 169 "BBB CSW bulk-in clear stall", 170 "BBB CSW, 2nd attempt", 171 "BBB Reset", 172 "BBB bulk-in clear stall", 173 "BBB bulk-out clear stall", 174 "CBI Command", 175 "CBI Data", 176 "CBI Status", 177 "CBI Data bulk-in/-out clear stall", 178 "CBI Status intr-in clear stall", 179 "CBI Reset", 180 "CBI bulk-in clear stall", 181 "CBI bulk-out clear stall", 182 NULL 183 }; 184 #endif 185 186 /* USB device probe/attach/detach functions */ 187 int umass_match(device_t, cfdata_t, void *); 188 void umass_attach(device_t, device_t, void *); 189 int umass_detach(device_t, int); 190 static void umass_childdet(device_t, device_t); 191 int umass_activate(device_t, enum devact); 192 extern struct cfdriver umass_cd; 193 CFATTACH_DECL2_NEW(umass, sizeof(struct umass_softc), umass_match, umass_attach, 194 umass_detach, umass_activate, NULL, umass_childdet); 195 196 Static void umass_disco(struct umass_softc *sc); 197 198 /* generic transfer functions */ 199 Static usbd_status umass_setup_transfer(struct umass_softc *sc, 200 usbd_pipe_handle pipe, 201 void *buffer, int buflen, int flags, 202 usbd_xfer_handle xfer); 203 Static usbd_status umass_setup_ctrl_transfer(struct umass_softc *sc, 204 usb_device_request_t *req, 205 void *buffer, int buflen, int flags, 206 usbd_xfer_handle xfer); 207 Static void umass_clear_endpoint_stall(struct umass_softc *sc, int endpt, 208 usbd_xfer_handle xfer); 209 #if 0 210 Static void umass_reset(struct umass_softc *sc, transfer_cb_f cb, void *priv); 211 #endif 212 213 /* Bulk-Only related functions */ 214 Static void umass_bbb_transfer(struct umass_softc *, int, void *, int, void *, 215 int, int, u_int, umass_callback, void *); 216 Static void umass_bbb_reset(struct umass_softc *, int); 217 Static void umass_bbb_state(usbd_xfer_handle, usbd_private_handle, usbd_status); 218 219 usbd_status umass_bbb_get_max_lun(struct umass_softc *, u_int8_t *); 220 221 /* CBI related functions */ 222 Static void umass_cbi_transfer(struct umass_softc *, int, void *, int, void *, 223 int, int, u_int, umass_callback, void *); 224 Static void umass_cbi_reset(struct umass_softc *, int); 225 Static void umass_cbi_state(usbd_xfer_handle, usbd_private_handle, usbd_status); 226 227 Static int umass_cbi_adsc(struct umass_softc *, char *, int, usbd_xfer_handle); 228 229 const struct umass_wire_methods umass_bbb_methods = { 230 umass_bbb_transfer, 231 umass_bbb_reset, 232 umass_bbb_state 233 }; 234 235 const struct umass_wire_methods umass_cbi_methods = { 236 umass_cbi_transfer, 237 umass_cbi_reset, 238 umass_cbi_state 239 }; 240 241 #ifdef UMASS_DEBUG 242 /* General debugging functions */ 243 Static void umass_bbb_dump_cbw(struct umass_softc *sc, 244 umass_bbb_cbw_t *cbw); 245 Static void umass_bbb_dump_csw(struct umass_softc *sc, 246 umass_bbb_csw_t *csw); 247 Static void umass_dump_buffer(struct umass_softc *sc, u_int8_t *buffer, 248 int buflen, int printlen); 249 #endif 250 251 252 /* 253 * USB device probe/attach/detach 254 */ 255 256 int 257 umass_match(device_t parent, cfdata_t match, void *aux) 258 { 259 struct usbif_attach_arg *uaa = aux; 260 const struct umass_quirk *quirk; 261 262 quirk = umass_lookup(uaa->vendor, uaa->product); 263 if (quirk != NULL && quirk->uq_match != UMASS_QUIRK_USE_DEFAULTMATCH) 264 return (quirk->uq_match); 265 266 if (uaa->class != UICLASS_MASS) 267 return (UMATCH_NONE); 268 269 switch (uaa->subclass) { 270 case UISUBCLASS_RBC: 271 case UISUBCLASS_SFF8020I: 272 case UISUBCLASS_QIC157: 273 case UISUBCLASS_UFI: 274 case UISUBCLASS_SFF8070I: 275 case UISUBCLASS_SCSI: 276 break; 277 default: 278 return (UMATCH_IFACECLASS); 279 } 280 281 switch (uaa->proto) { 282 case UIPROTO_MASS_CBI_I: 283 case UIPROTO_MASS_CBI: 284 case UIPROTO_MASS_BBB_OLD: 285 case UIPROTO_MASS_BBB: 286 break; 287 default: 288 return (UMATCH_IFACECLASS_IFACESUBCLASS); 289 } 290 291 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO); 292 } 293 294 void 295 umass_attach(device_t parent, device_t self, void *aux) 296 { 297 struct umass_softc *sc = device_private(self); 298 struct usbif_attach_arg *uaa = aux; 299 const struct umass_quirk *quirk; 300 usb_interface_descriptor_t *id; 301 usb_endpoint_descriptor_t *ed; 302 const char *sWire, *sCommand; 303 char *devinfop; 304 usbd_status err; 305 int i, bno, error; 306 307 sc->sc_dev = self; 308 309 aprint_naive("\n"); 310 aprint_normal("\n"); 311 312 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_USB); 313 cv_init(&sc->sc_detach_cv, "umassdet"); 314 315 devinfop = usbd_devinfo_alloc(uaa->device, 0); 316 aprint_normal_dev(self, "%s\n", devinfop); 317 usbd_devinfo_free(devinfop); 318 319 sc->sc_udev = uaa->device; 320 sc->sc_iface = uaa->iface; 321 sc->sc_ifaceno = uaa->ifaceno; 322 323 quirk = umass_lookup(uaa->vendor, uaa->product); 324 if (quirk != NULL) { 325 sc->sc_wire = quirk->uq_wire; 326 sc->sc_cmd = quirk->uq_cmd; 327 sc->sc_quirks = quirk->uq_flags; 328 sc->sc_busquirks = quirk->uq_busquirks; 329 330 if (quirk->uq_fixup != NULL) 331 (*quirk->uq_fixup)(sc); 332 } else { 333 sc->sc_wire = UMASS_WPROTO_UNSPEC; 334 sc->sc_cmd = UMASS_CPROTO_UNSPEC; 335 sc->sc_quirks = 0; 336 sc->sc_busquirks = 0; 337 } 338 339 if (sc->sc_wire == UMASS_WPROTO_UNSPEC) { 340 switch (uaa->proto) { 341 case UIPROTO_MASS_CBI: 342 sc->sc_wire = UMASS_WPROTO_CBI; 343 break; 344 case UIPROTO_MASS_CBI_I: 345 sc->sc_wire = UMASS_WPROTO_CBI_I; 346 break; 347 case UIPROTO_MASS_BBB: 348 case UIPROTO_MASS_BBB_OLD: 349 sc->sc_wire = UMASS_WPROTO_BBB; 350 break; 351 default: 352 DPRINTF(UDMASS_GEN, 353 ("%s: Unsupported wire protocol %u\n", 354 device_xname(sc->sc_dev), 355 uaa->proto)); 356 return; 357 } 358 } 359 360 if (sc->sc_cmd == UMASS_CPROTO_UNSPEC) { 361 switch (uaa->subclass) { 362 case UISUBCLASS_SCSI: 363 sc->sc_cmd = UMASS_CPROTO_SCSI; 364 break; 365 case UISUBCLASS_UFI: 366 sc->sc_cmd = UMASS_CPROTO_UFI; 367 break; 368 case UISUBCLASS_SFF8020I: 369 case UISUBCLASS_SFF8070I: 370 case UISUBCLASS_QIC157: 371 sc->sc_cmd = UMASS_CPROTO_ATAPI; 372 break; 373 case UISUBCLASS_RBC: 374 sc->sc_cmd = UMASS_CPROTO_RBC; 375 break; 376 default: 377 DPRINTF(UDMASS_GEN, 378 ("%s: Unsupported command protocol %u\n", 379 device_xname(sc->sc_dev), 380 uaa->subclass)); 381 return; 382 } 383 } 384 385 switch (sc->sc_wire) { 386 case UMASS_WPROTO_CBI: 387 sWire = "CBI"; 388 break; 389 case UMASS_WPROTO_CBI_I: 390 sWire = "CBI with CCI"; 391 break; 392 case UMASS_WPROTO_BBB: 393 sWire = "Bulk-Only"; 394 break; 395 default: 396 sWire = "unknown"; 397 break; 398 } 399 400 switch (sc->sc_cmd) { 401 case UMASS_CPROTO_RBC: 402 sCommand = "RBC"; 403 break; 404 case UMASS_CPROTO_SCSI: 405 sCommand = "SCSI"; 406 break; 407 case UMASS_CPROTO_UFI: 408 sCommand = "UFI"; 409 break; 410 case UMASS_CPROTO_ATAPI: 411 sCommand = "ATAPI"; 412 break; 413 case UMASS_CPROTO_ISD_ATA: 414 sCommand = "ISD-ATA"; 415 break; 416 default: 417 sCommand = "unknown"; 418 break; 419 } 420 421 aprint_verbose_dev(self, "using %s over %s\n", sCommand, sWire); 422 423 if (quirk != NULL && quirk->uq_init != NULL) { 424 err = (*quirk->uq_init)(sc); 425 if (err) { 426 aprint_error_dev(self, "quirk init failed\n"); 427 umass_disco(sc); 428 return; 429 } 430 } 431 432 /* 433 * In addition to the Control endpoint the following endpoints 434 * are required: 435 * a) bulk-in endpoint. 436 * b) bulk-out endpoint. 437 * and for Control/Bulk/Interrupt with CCI (CBI_I) 438 * c) intr-in 439 * 440 * The endpoint addresses are not fixed, so we have to read them 441 * from the device descriptors of the current interface. 442 */ 443 id = usbd_get_interface_descriptor(sc->sc_iface); 444 for (i = 0 ; i < id->bNumEndpoints ; i++) { 445 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 446 if (ed == NULL) { 447 aprint_error_dev(self, 448 "could not read endpoint descriptor\n"); 449 return; 450 } 451 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN 452 && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 453 sc->sc_epaddr[UMASS_BULKIN] = ed->bEndpointAddress; 454 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT 455 && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 456 sc->sc_epaddr[UMASS_BULKOUT] = ed->bEndpointAddress; 457 } else if (sc->sc_wire == UMASS_WPROTO_CBI_I 458 && UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN 459 && (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 460 sc->sc_epaddr[UMASS_INTRIN] = ed->bEndpointAddress; 461 #ifdef UMASS_DEBUG 462 if (UGETW(ed->wMaxPacketSize) > 2) { 463 DPRINTF(UDMASS_CBI, ("%s: intr size is %d\n", 464 device_xname(sc->sc_dev), 465 UGETW(ed->wMaxPacketSize))); 466 } 467 #endif 468 } 469 } 470 471 /* check whether we found all the endpoints we need */ 472 if (!sc->sc_epaddr[UMASS_BULKIN] || !sc->sc_epaddr[UMASS_BULKOUT] || 473 (sc->sc_wire == UMASS_WPROTO_CBI_I && 474 !sc->sc_epaddr[UMASS_INTRIN])) { 475 aprint_error_dev(self, "endpoint not found %u/%u/%u\n", 476 sc->sc_epaddr[UMASS_BULKIN], 477 sc->sc_epaddr[UMASS_BULKOUT], 478 sc->sc_epaddr[UMASS_INTRIN]); 479 return; 480 } 481 482 /* 483 * Get the maximum LUN supported by the device. 484 */ 485 if (sc->sc_wire == UMASS_WPROTO_BBB && 486 (sc->sc_quirks & UMASS_QUIRK_NOGETMAXLUN) == 0) { 487 err = umass_bbb_get_max_lun(sc, &sc->maxlun); 488 if (err) { 489 aprint_error_dev(self, "unable to get Max Lun: %s\n", 490 usbd_errstr(err)); 491 return; 492 } 493 if (sc->maxlun > 0) 494 sc->sc_busquirks |= PQUIRK_FORCELUNS; 495 } else { 496 sc->maxlun = 0; 497 } 498 499 /* Open the bulk-in and -out pipe */ 500 DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for BULKOUT\n", 501 device_xname(sc->sc_dev), sc->sc_iface, 502 sc->sc_epaddr[UMASS_BULKOUT])); 503 err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_BULKOUT], 504 USBD_EXCLUSIVE_USE, 505 &sc->sc_pipe[UMASS_BULKOUT]); 506 if (err) { 507 aprint_error_dev(self, "cannot open %u-out pipe (bulk)\n", 508 sc->sc_epaddr[UMASS_BULKOUT]); 509 umass_disco(sc); 510 return; 511 } 512 DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for BULKIN\n", 513 device_xname(sc->sc_dev), sc->sc_iface, 514 sc->sc_epaddr[UMASS_BULKIN])); 515 err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_BULKIN], 516 USBD_EXCLUSIVE_USE, &sc->sc_pipe[UMASS_BULKIN]); 517 if (err) { 518 aprint_error_dev(self, "could not open %u-in pipe (bulk)\n", 519 sc->sc_epaddr[UMASS_BULKIN]); 520 umass_disco(sc); 521 return; 522 } 523 /* 524 * Open the intr-in pipe if the protocol is CBI with CCI. 525 * Note: early versions of the Zip drive do have an interrupt pipe, but 526 * this pipe is unused 527 * 528 * We do not open the interrupt pipe as an interrupt pipe, but as a 529 * normal bulk endpoint. We send an IN transfer down the wire at the 530 * appropriate time, because we know exactly when to expect data on 531 * that endpoint. This saves bandwidth, but more important, makes the 532 * code for handling the data on that endpoint simpler. No data 533 * arriving concurrently. 534 */ 535 if (sc->sc_wire == UMASS_WPROTO_CBI_I) { 536 DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for INTRIN\n", 537 device_xname(sc->sc_dev), sc->sc_iface, 538 sc->sc_epaddr[UMASS_INTRIN])); 539 err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_INTRIN], 540 USBD_EXCLUSIVE_USE, &sc->sc_pipe[UMASS_INTRIN]); 541 if (err) { 542 aprint_error_dev(self, "couldn't open %u-in (intr)\n", 543 sc->sc_epaddr[UMASS_INTRIN]); 544 umass_disco(sc); 545 return; 546 } 547 } 548 549 /* initialisation of generic part */ 550 sc->transfer_state = TSTATE_IDLE; 551 552 /* request a sufficient number of xfer handles */ 553 for (i = 0; i < XFER_NR; i++) { 554 sc->transfer_xfer[i] = usbd_alloc_xfer(uaa->device); 555 if (sc->transfer_xfer[i] == NULL) { 556 aprint_error_dev(self, "Out of memory\n"); 557 umass_disco(sc); 558 return; 559 } 560 } 561 /* Allocate buffer for data transfer (it's huge). */ 562 switch (sc->sc_wire) { 563 case UMASS_WPROTO_BBB: 564 bno = XFER_BBB_DATA; 565 goto dalloc; 566 case UMASS_WPROTO_CBI: 567 bno = XFER_CBI_DATA; 568 goto dalloc; 569 case UMASS_WPROTO_CBI_I: 570 bno = XFER_CBI_DATA; 571 dalloc: 572 sc->data_buffer = usbd_alloc_buffer(sc->transfer_xfer[bno], 573 UMASS_MAX_TRANSFER_SIZE); 574 if (sc->data_buffer == NULL) { 575 aprint_error_dev(self, "no buffer memory\n"); 576 umass_disco(sc); 577 return; 578 } 579 break; 580 default: 581 break; 582 } 583 584 /* Initialise the wire protocol specific methods */ 585 switch (sc->sc_wire) { 586 case UMASS_WPROTO_BBB: 587 sc->sc_methods = &umass_bbb_methods; 588 break; 589 case UMASS_WPROTO_CBI: 590 case UMASS_WPROTO_CBI_I: 591 sc->sc_methods = &umass_cbi_methods; 592 break; 593 default: 594 umass_disco(sc); 595 return; 596 } 597 598 error = 0; 599 switch (sc->sc_cmd) { 600 case UMASS_CPROTO_RBC: 601 case UMASS_CPROTO_SCSI: 602 #if NSCSIBUS > 0 603 error = umass_scsi_attach(sc); 604 #else 605 aprint_error_dev(self, "scsibus not configured\n"); 606 #endif 607 break; 608 609 case UMASS_CPROTO_UFI: 610 case UMASS_CPROTO_ATAPI: 611 #if NATAPIBUS > 0 612 error = umass_atapi_attach(sc); 613 #else 614 aprint_error_dev(self, "atapibus not configured\n"); 615 #endif 616 break; 617 618 case UMASS_CPROTO_ISD_ATA: 619 #if NWD > 0 620 error = umass_isdata_attach(sc); 621 #else 622 aprint_error_dev(self, "isdata not configured\n"); 623 #endif 624 break; 625 626 default: 627 aprint_error_dev(self, "command protocol=0x%x not supported\n", 628 sc->sc_cmd); 629 umass_disco(sc); 630 return; 631 } 632 if (error) { 633 aprint_error_dev(self, "bus attach failed\n"); 634 umass_disco(sc); 635 return; 636 } 637 638 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 639 sc->sc_dev); 640 641 if (!pmf_device_register(self, NULL, NULL)) 642 aprint_error_dev(self, "couldn't establish power handler\n"); 643 644 DPRINTF(UDMASS_GEN, ("%s: Attach finished\n", device_xname(sc->sc_dev))); 645 646 return; 647 } 648 649 static void 650 umass_childdet(device_t self, device_t child) 651 { 652 struct umass_softc *sc = device_private(self); 653 654 KASSERTMSG(child == sc->bus->sc_child, 655 "assertion child == sc->bus->sc_child failed\n"); 656 sc->bus->sc_child = NULL; 657 } 658 659 int 660 umass_detach(device_t self, int flags) 661 { 662 struct umass_softc *sc = device_private(self); 663 struct umassbus_softc *scbus; 664 int rv = 0, i; 665 666 DPRINTF(UDMASS_USB, ("%s: detached\n", device_xname(sc->sc_dev))); 667 668 pmf_device_deregister(self); 669 670 /* Abort the pipes to wake up any waiting processes. */ 671 for (i = 0 ; i < UMASS_NEP ; i++) { 672 if (sc->sc_pipe[i] != NULL) 673 usbd_abort_pipe(sc->sc_pipe[i]); 674 } 675 676 /* Do we really need reference counting? Perhaps in ioctl() */ 677 mutex_enter(&sc->sc_lock); 678 if (--sc->sc_refcnt >= 0) { 679 #ifdef DIAGNOSTIC 680 aprint_normal_dev(self, "waiting for refcnt\n"); 681 #endif 682 /* Wait for processes to go away. */ 683 usb_detach_wait(sc->sc_dev, &sc->sc_detach_cv, &sc->sc_lock); 684 } 685 mutex_exit(&sc->sc_lock); 686 687 scbus = sc->bus; 688 if (scbus != NULL) { 689 if (scbus->sc_child != NULL) 690 rv = config_detach(scbus->sc_child, flags); 691 free(scbus, M_DEVBUF); 692 sc->bus = NULL; 693 } 694 695 if (rv != 0) 696 return (rv); 697 698 umass_disco(sc); 699 700 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 701 sc->sc_dev); 702 703 mutex_destroy(&sc->sc_lock); 704 cv_destroy(&sc->sc_detach_cv); 705 706 return (rv); 707 } 708 709 int 710 umass_activate(device_t dev, enum devact act) 711 { 712 struct umass_softc *sc = device_private(dev); 713 714 DPRINTF(UDMASS_USB, ("%s: umass_activate: %d\n", 715 device_xname(dev), act)); 716 717 switch (act) { 718 case DVACT_DEACTIVATE: 719 sc->sc_dying = 1; 720 return 0; 721 default: 722 return EOPNOTSUPP; 723 } 724 } 725 726 Static void 727 umass_disco(struct umass_softc *sc) 728 { 729 int i; 730 731 DPRINTF(UDMASS_GEN, ("umass_disco\n")); 732 733 /* Remove all the pipes. */ 734 for (i = 0 ; i < UMASS_NEP ; i++) { 735 if (sc->sc_pipe[i] != NULL) { 736 usbd_abort_pipe(sc->sc_pipe[i]); 737 usbd_close_pipe(sc->sc_pipe[i]); 738 sc->sc_pipe[i] = NULL; 739 } 740 } 741 742 /* Some xfers may be queued in the default pipe */ 743 usbd_abort_default_pipe(sc->sc_udev); 744 745 /* Free the xfers. */ 746 for (i = 0; i < XFER_NR; i++) 747 if (sc->transfer_xfer[i] != NULL) { 748 usbd_free_xfer(sc->transfer_xfer[i]); 749 sc->transfer_xfer[i] = NULL; 750 } 751 } 752 753 /* 754 * Generic functions to handle transfers 755 */ 756 757 Static usbd_status 758 umass_setup_transfer(struct umass_softc *sc, usbd_pipe_handle pipe, 759 void *buffer, int buflen, int flags, 760 usbd_xfer_handle xfer) 761 { 762 usbd_status err; 763 764 if (sc->sc_dying) 765 return (USBD_IOERROR); 766 767 /* Initialiase a USB transfer and then schedule it */ 768 769 usbd_setup_xfer(xfer, pipe, (void *)sc, buffer, buflen, 770 flags | sc->sc_xfer_flags, sc->timeout, sc->sc_methods->wire_state); 771 772 err = usbd_transfer(xfer); 773 DPRINTF(UDMASS_XFER,("%s: start xfer buffer=%p buflen=%d flags=0x%x " 774 "timeout=%d\n", device_xname(sc->sc_dev), 775 buffer, buflen, flags | sc->sc_xfer_flags, sc->timeout)); 776 if (err && err != USBD_IN_PROGRESS) { 777 DPRINTF(UDMASS_BBB, ("%s: failed to setup transfer, %s\n", 778 device_xname(sc->sc_dev), usbd_errstr(err))); 779 return (err); 780 } 781 782 return (USBD_NORMAL_COMPLETION); 783 } 784 785 786 Static usbd_status 787 umass_setup_ctrl_transfer(struct umass_softc *sc, usb_device_request_t *req, 788 void *buffer, int buflen, int flags, usbd_xfer_handle xfer) 789 { 790 usbd_status err; 791 792 if (sc->sc_dying) 793 return (USBD_IOERROR); 794 795 /* Initialiase a USB control transfer and then schedule it */ 796 797 usbd_setup_default_xfer(xfer, sc->sc_udev, (void *) sc, sc->timeout, 798 req, buffer, buflen, flags, sc->sc_methods->wire_state); 799 800 err = usbd_transfer(xfer); 801 if (err && err != USBD_IN_PROGRESS) { 802 DPRINTF(UDMASS_BBB, ("%s: failed to setup ctrl transfer, %s\n", 803 device_xname(sc->sc_dev), usbd_errstr(err))); 804 805 /* do not reset, as this would make us loop */ 806 return (err); 807 } 808 809 return (USBD_NORMAL_COMPLETION); 810 } 811 812 Static void 813 umass_clear_endpoint_stall(struct umass_softc *sc, int endpt, 814 usbd_xfer_handle xfer) 815 { 816 if (sc->sc_dying) 817 return; 818 819 DPRINTF(UDMASS_BBB, ("%s: Clear endpoint 0x%02x stall\n", 820 device_xname(sc->sc_dev), sc->sc_epaddr[endpt])); 821 822 usbd_clear_endpoint_toggle(sc->sc_pipe[endpt]); 823 824 sc->sc_req.bmRequestType = UT_WRITE_ENDPOINT; 825 sc->sc_req.bRequest = UR_CLEAR_FEATURE; 826 USETW(sc->sc_req.wValue, UF_ENDPOINT_HALT); 827 USETW(sc->sc_req.wIndex, sc->sc_epaddr[endpt]); 828 USETW(sc->sc_req.wLength, 0); 829 umass_setup_ctrl_transfer(sc, &sc->sc_req, NULL, 0, 0, xfer); 830 } 831 832 #if 0 833 Static void 834 umass_reset(struct umass_softc *sc, transfer_cb_f cb, void *priv) 835 { 836 sc->transfer_cb = cb; 837 sc->transfer_priv = priv; 838 839 /* The reset is a forced reset, so no error (yet) */ 840 sc->reset(sc, STATUS_CMD_OK); 841 } 842 #endif 843 844 /* 845 * Bulk protocol specific functions 846 */ 847 848 Static void 849 umass_bbb_reset(struct umass_softc *sc, int status) 850 { 851 KASSERTMSG(sc->sc_wire & UMASS_WPROTO_BBB, 852 "sc->sc_wire == 0x%02x wrong for umass_bbb_reset\n", 853 sc->sc_wire); 854 855 if (sc->sc_dying) 856 return; 857 858 /* 859 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class) 860 * 861 * For Reset Recovery the host shall issue in the following order: 862 * a) a Bulk-Only Mass Storage Reset 863 * b) a Clear Feature HALT to the Bulk-In endpoint 864 * c) a Clear Feature HALT to the Bulk-Out endpoint 865 * 866 * This is done in 3 steps, states: 867 * TSTATE_BBB_RESET1 868 * TSTATE_BBB_RESET2 869 * TSTATE_BBB_RESET3 870 * 871 * If the reset doesn't succeed, the device should be port reset. 872 */ 873 874 DPRINTF(UDMASS_BBB, ("%s: Bulk Reset\n", 875 device_xname(sc->sc_dev))); 876 877 sc->transfer_state = TSTATE_BBB_RESET1; 878 sc->transfer_status = status; 879 880 /* reset is a class specific interface write */ 881 sc->sc_req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 882 sc->sc_req.bRequest = UR_BBB_RESET; 883 USETW(sc->sc_req.wValue, 0); 884 USETW(sc->sc_req.wIndex, sc->sc_ifaceno); 885 USETW(sc->sc_req.wLength, 0); 886 umass_setup_ctrl_transfer(sc, &sc->sc_req, NULL, 0, 0, 887 sc->transfer_xfer[XFER_BBB_RESET1]); 888 } 889 890 Static void 891 umass_bbb_transfer(struct umass_softc *sc, int lun, void *cmd, int cmdlen, 892 void *data, int datalen, int dir, u_int timeout, 893 umass_callback cb, void *priv) 894 { 895 static int dCBWtag = 42; /* unique for CBW of transfer */ 896 897 DPRINTF(UDMASS_BBB,("%s: umass_bbb_transfer cmd=0x%02x\n", 898 device_xname(sc->sc_dev), *(u_char *)cmd)); 899 900 KASSERTMSG(sc->sc_wire & UMASS_WPROTO_BBB, 901 "sc->sc_wire == 0x%02x wrong for umass_bbb_transfer\n", 902 sc->sc_wire); 903 904 if (sc->sc_dying) 905 return; 906 907 /* Be a little generous. */ 908 sc->timeout = timeout + USBD_DEFAULT_TIMEOUT; 909 910 /* 911 * Do a Bulk-Only transfer with cmdlen bytes from cmd, possibly 912 * a data phase of datalen bytes from/to the device and finally a 913 * csw read phase. 914 * If the data direction was inbound a maximum of datalen bytes 915 * is stored in the buffer pointed to by data. 916 * 917 * umass_bbb_transfer initialises the transfer and lets the state 918 * machine in umass_bbb_state handle the completion. It uses the 919 * following states: 920 * TSTATE_BBB_COMMAND 921 * -> TSTATE_BBB_DATA 922 * -> TSTATE_BBB_STATUS 923 * -> TSTATE_BBB_STATUS2 924 * -> TSTATE_BBB_IDLE 925 * 926 * An error in any of those states will invoke 927 * umass_bbb_reset. 928 */ 929 930 /* check the given arguments */ 931 KASSERTMSG(datalen == 0 || data != NULL, 932 "%s: datalen > 0, but no buffer",device_xname(sc->sc_dev)); 933 KASSERTMSG(cmdlen <= CBWCDBLENGTH, 934 "%s: cmdlen exceeds CDB length in CBW (%d > %d)", 935 device_xname(sc->sc_dev), cmdlen, CBWCDBLENGTH); 936 KASSERTMSG(dir == DIR_NONE || datalen > 0, 937 "%s: datalen == 0 while direction is not NONE\n", 938 device_xname(sc->sc_dev)); 939 KASSERTMSG(datalen == 0 || dir != DIR_NONE, 940 "%s: direction is NONE while datalen is not zero\n", 941 device_xname(sc->sc_dev)); 942 /* CTASSERT */ 943 KASSERTMSG(sizeof(umass_bbb_cbw_t) == UMASS_BBB_CBW_SIZE, 944 "%s: CBW struct does not have the right size (%zu vs. %u)\n", 945 device_xname(sc->sc_dev), 946 sizeof(umass_bbb_cbw_t), UMASS_BBB_CBW_SIZE); 947 /* CTASSERT */ 948 KASSERTMSG(sizeof(umass_bbb_csw_t) == UMASS_BBB_CSW_SIZE, 949 "%s: CSW struct does not have the right size (%zu vs. %u)\n", 950 device_xname(sc->sc_dev), 951 sizeof(umass_bbb_csw_t), UMASS_BBB_CSW_SIZE); 952 953 /* 954 * Determine the direction of the data transfer and the length. 955 * 956 * dCBWDataTransferLength (datalen) : 957 * This field indicates the number of bytes of data that the host 958 * intends to transfer on the IN or OUT Bulk endpoint(as indicated by 959 * the Direction bit) during the execution of this command. If this 960 * field is set to 0, the device will expect that no data will be 961 * transferred IN or OUT during this command, regardless of the value 962 * of the Direction bit defined in dCBWFlags. 963 * 964 * dCBWFlags (dir) : 965 * The bits of the Flags field are defined as follows: 966 * Bits 0-6 reserved 967 * Bit 7 Direction - this bit shall be ignored if the 968 * dCBWDataTransferLength field is zero. 969 * 0 = data Out from host to device 970 * 1 = data In from device to host 971 */ 972 973 /* Fill in the Command Block Wrapper */ 974 USETDW(sc->cbw.dCBWSignature, CBWSIGNATURE); 975 USETDW(sc->cbw.dCBWTag, dCBWtag); 976 dCBWtag++; /* cannot be done in macro (it will be done 4 times) */ 977 USETDW(sc->cbw.dCBWDataTransferLength, datalen); 978 /* DIR_NONE is treated as DIR_OUT (0x00) */ 979 sc->cbw.bCBWFlags = (dir == DIR_IN? CBWFLAGS_IN:CBWFLAGS_OUT); 980 sc->cbw.bCBWLUN = lun; 981 sc->cbw.bCDBLength = cmdlen; 982 memcpy(sc->cbw.CBWCDB, cmd, cmdlen); 983 984 DIF(UDMASS_BBB, umass_bbb_dump_cbw(sc, &sc->cbw)); 985 986 /* store the details for the data transfer phase */ 987 sc->transfer_dir = dir; 988 sc->transfer_data = data; 989 sc->transfer_datalen = datalen; 990 sc->transfer_actlen = 0; 991 sc->transfer_cb = cb; 992 sc->transfer_priv = priv; 993 sc->transfer_status = STATUS_CMD_OK; 994 995 /* move from idle to the command state */ 996 sc->transfer_state = TSTATE_BBB_COMMAND; 997 998 /* Send the CBW from host to device via bulk-out endpoint. */ 999 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT], 1000 &sc->cbw, UMASS_BBB_CBW_SIZE, 0, 1001 sc->transfer_xfer[XFER_BBB_CBW])) { 1002 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1003 } 1004 } 1005 1006 1007 Static void 1008 umass_bbb_state(usbd_xfer_handle xfer, usbd_private_handle priv, 1009 usbd_status err) 1010 { 1011 struct umass_softc *sc = (struct umass_softc *) priv; 1012 usbd_xfer_handle next_xfer; 1013 int residue; 1014 1015 KASSERTMSG(sc->sc_wire & UMASS_WPROTO_BBB, 1016 "sc->sc_wire == 0x%02x wrong for umass_bbb_state\n", 1017 sc->sc_wire); 1018 1019 if (sc->sc_dying) 1020 return; 1021 1022 /* 1023 * State handling for BBB transfers. 1024 * 1025 * The subroutine is rather long. It steps through the states given in 1026 * Annex A of the Bulk-Only specification. 1027 * Each state first does the error handling of the previous transfer 1028 * and then prepares the next transfer. 1029 * Each transfer is done asynchroneously so after the request/transfer 1030 * has been submitted you will find a 'return;'. 1031 */ 1032 1033 DPRINTF(UDMASS_BBB, ("%s: Handling BBB state %d (%s), xfer=%p, %s\n", 1034 device_xname(sc->sc_dev), sc->transfer_state, 1035 states[sc->transfer_state], xfer, usbd_errstr(err))); 1036 1037 switch (sc->transfer_state) { 1038 1039 /***** Bulk Transfer *****/ 1040 case TSTATE_BBB_COMMAND: 1041 /* Command transport phase, error handling */ 1042 if (err) { 1043 DPRINTF(UDMASS_BBB, ("%s: failed to send CBW\n", 1044 device_xname(sc->sc_dev))); 1045 /* If the device detects that the CBW is invalid, then 1046 * the device may STALL both bulk endpoints and require 1047 * a Bulk-Reset 1048 */ 1049 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1050 return; 1051 } 1052 1053 /* Data transport phase, setup transfer */ 1054 sc->transfer_state = TSTATE_BBB_DATA; 1055 if (sc->transfer_dir == DIR_IN) { 1056 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN], 1057 sc->data_buffer, sc->transfer_datalen, 1058 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1059 sc->transfer_xfer[XFER_BBB_DATA])) 1060 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1061 1062 return; 1063 } else if (sc->transfer_dir == DIR_OUT) { 1064 memcpy(sc->data_buffer, sc->transfer_data, 1065 sc->transfer_datalen); 1066 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT], 1067 sc->data_buffer, sc->transfer_datalen, 1068 USBD_NO_COPY,/* fixed length transfer */ 1069 sc->transfer_xfer[XFER_BBB_DATA])) 1070 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1071 1072 return; 1073 } else { 1074 DPRINTF(UDMASS_BBB, ("%s: no data phase\n", 1075 device_xname(sc->sc_dev))); 1076 } 1077 1078 /* FALLTHROUGH if no data phase, err == 0 */ 1079 case TSTATE_BBB_DATA: 1080 /* Command transport phase error handling (ignored if no data 1081 * phase (fallthrough from previous state)) */ 1082 if (sc->transfer_dir != DIR_NONE) { 1083 /* retrieve the length of the transfer that was done */ 1084 usbd_get_xfer_status(xfer, NULL, NULL, 1085 &sc->transfer_actlen, NULL); 1086 DPRINTF(UDMASS_BBB, ("%s: BBB_DATA actlen=%d\n", 1087 device_xname(sc->sc_dev), sc->transfer_actlen)); 1088 1089 if (err) { 1090 DPRINTF(UDMASS_BBB, ("%s: Data-%s %d failed, " 1091 "%s\n", device_xname(sc->sc_dev), 1092 (sc->transfer_dir == DIR_IN?"in":"out"), 1093 sc->transfer_datalen,usbd_errstr(err))); 1094 1095 if (err == USBD_STALLED) { 1096 sc->transfer_state = TSTATE_BBB_DCLEAR; 1097 umass_clear_endpoint_stall(sc, 1098 (sc->transfer_dir == DIR_IN? 1099 UMASS_BULKIN:UMASS_BULKOUT), 1100 sc->transfer_xfer[XFER_BBB_DCLEAR]); 1101 } else { 1102 /* Unless the error is a pipe stall the 1103 * error is fatal. 1104 */ 1105 umass_bbb_reset(sc,STATUS_WIRE_FAILED); 1106 } 1107 return; 1108 } 1109 } 1110 1111 /* FALLTHROUGH, err == 0 (no data phase or successful) */ 1112 case TSTATE_BBB_DCLEAR: /* stall clear after data phase */ 1113 if (sc->transfer_dir == DIR_IN) 1114 memcpy(sc->transfer_data, sc->data_buffer, 1115 sc->transfer_actlen); 1116 1117 DIF(UDMASS_BBB, if (sc->transfer_dir == DIR_IN) 1118 umass_dump_buffer(sc, sc->transfer_data, 1119 sc->transfer_datalen, 48)); 1120 1121 /* FALLTHROUGH, err == 0 (no data phase or successful) */ 1122 case TSTATE_BBB_SCLEAR: /* stall clear after status phase */ 1123 /* Reading of CSW after bulk stall condition in data phase 1124 * (TSTATE_BBB_DATA2) or bulk-in stall condition after 1125 * reading CSW (TSTATE_BBB_SCLEAR). 1126 * In the case of no data phase or successful data phase, 1127 * err == 0 and the following if block is passed. 1128 */ 1129 if (err) { /* should not occur */ 1130 printf("%s: BBB bulk-%s stall clear failed, %s\n", 1131 device_xname(sc->sc_dev), 1132 (sc->transfer_dir == DIR_IN? "in":"out"), 1133 usbd_errstr(err)); 1134 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1135 return; 1136 } 1137 1138 /* Status transport phase, setup transfer */ 1139 if (sc->transfer_state == TSTATE_BBB_COMMAND || 1140 sc->transfer_state == TSTATE_BBB_DATA || 1141 sc->transfer_state == TSTATE_BBB_DCLEAR) { 1142 /* After no data phase, successful data phase and 1143 * after clearing bulk-in/-out stall condition 1144 */ 1145 sc->transfer_state = TSTATE_BBB_STATUS1; 1146 next_xfer = sc->transfer_xfer[XFER_BBB_CSW1]; 1147 } else { 1148 /* After first attempt of fetching CSW */ 1149 sc->transfer_state = TSTATE_BBB_STATUS2; 1150 next_xfer = sc->transfer_xfer[XFER_BBB_CSW2]; 1151 } 1152 1153 /* Read the Command Status Wrapper via bulk-in endpoint. */ 1154 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN], 1155 &sc->csw, UMASS_BBB_CSW_SIZE, 0, next_xfer)) { 1156 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1157 return; 1158 } 1159 1160 return; 1161 case TSTATE_BBB_STATUS1: /* first attempt */ 1162 case TSTATE_BBB_STATUS2: /* second attempt */ 1163 /* Status transfer, error handling */ 1164 if (err) { 1165 DPRINTF(UDMASS_BBB, ("%s: Failed to read CSW, %s%s\n", 1166 device_xname(sc->sc_dev), usbd_errstr(err), 1167 (sc->transfer_state == TSTATE_BBB_STATUS1? 1168 ", retrying":""))); 1169 1170 /* If this was the first attempt at fetching the CSW 1171 * retry it, otherwise fail. 1172 */ 1173 if (sc->transfer_state == TSTATE_BBB_STATUS1) { 1174 sc->transfer_state = TSTATE_BBB_SCLEAR; 1175 umass_clear_endpoint_stall(sc, UMASS_BULKIN, 1176 sc->transfer_xfer[XFER_BBB_SCLEAR]); 1177 return; 1178 } else { 1179 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1180 return; 1181 } 1182 } 1183 1184 DIF(UDMASS_BBB, umass_bbb_dump_csw(sc, &sc->csw)); 1185 1186 if ((sc->sc_quirks & UMASS_QUIRK_IGNORE_RESIDUE) == 0) { 1187 residue = UGETDW(sc->csw.dCSWDataResidue); 1188 } else { 1189 residue = sc->transfer_datalen - sc->transfer_actlen; 1190 } 1191 1192 /* Translate weird command-status signatures. */ 1193 if ((sc->sc_quirks & UMASS_QUIRK_WRONG_CSWSIG) && 1194 UGETDW(sc->csw.dCSWSignature) == CSWSIGNATURE_OLYMPUS_C1) 1195 USETDW(sc->csw.dCSWSignature, CSWSIGNATURE); 1196 1197 /* Translate invalid command-status tags */ 1198 if (sc->sc_quirks & UMASS_QUIRK_WRONG_CSWTAG) 1199 USETDW(sc->csw.dCSWTag, UGETDW(sc->cbw.dCBWTag)); 1200 1201 /* Check CSW and handle any error */ 1202 if (UGETDW(sc->csw.dCSWSignature) != CSWSIGNATURE) { 1203 /* Invalid CSW: Wrong signature or wrong tag might 1204 * indicate that the device is confused -> reset it. 1205 */ 1206 printf("%s: Invalid CSW: sig 0x%08x should be 0x%08x\n", 1207 device_xname(sc->sc_dev), 1208 UGETDW(sc->csw.dCSWSignature), 1209 CSWSIGNATURE); 1210 1211 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1212 return; 1213 } else if (UGETDW(sc->csw.dCSWTag) 1214 != UGETDW(sc->cbw.dCBWTag)) { 1215 printf("%s: Invalid CSW: tag %d should be %d\n", 1216 device_xname(sc->sc_dev), 1217 UGETDW(sc->csw.dCSWTag), 1218 UGETDW(sc->cbw.dCBWTag)); 1219 1220 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1221 return; 1222 1223 /* CSW is valid here */ 1224 } else if (sc->csw.bCSWStatus > CSWSTATUS_PHASE) { 1225 printf("%s: Invalid CSW: status %d > %d\n", 1226 device_xname(sc->sc_dev), 1227 sc->csw.bCSWStatus, 1228 CSWSTATUS_PHASE); 1229 1230 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1231 return; 1232 } else if (sc->csw.bCSWStatus == CSWSTATUS_PHASE) { 1233 printf("%s: Phase Error, residue = %d\n", 1234 device_xname(sc->sc_dev), residue); 1235 1236 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1237 return; 1238 1239 } else if (sc->transfer_actlen > sc->transfer_datalen) { 1240 /* Buffer overrun! Don't let this go by unnoticed */ 1241 panic("%s: transferred %d bytes instead of %d bytes", 1242 device_xname(sc->sc_dev), 1243 sc->transfer_actlen, sc->transfer_datalen); 1244 #if 0 1245 } else if (sc->transfer_datalen - sc->transfer_actlen 1246 != residue) { 1247 DPRINTF(UDMASS_BBB, ("%s: actlen=%d != residue=%d\n", 1248 device_xname(sc->sc_dev), 1249 sc->transfer_datalen - sc->transfer_actlen, 1250 residue)); 1251 1252 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1253 return; 1254 #endif 1255 } else if (sc->csw.bCSWStatus == CSWSTATUS_FAILED) { 1256 DPRINTF(UDMASS_BBB, ("%s: Command Failed, res = %d\n", 1257 device_xname(sc->sc_dev), residue)); 1258 1259 /* SCSI command failed but transfer was succesful */ 1260 sc->transfer_state = TSTATE_IDLE; 1261 sc->transfer_cb(sc, sc->transfer_priv, residue, 1262 STATUS_CMD_FAILED); 1263 1264 return; 1265 1266 } else { /* success */ 1267 sc->transfer_state = TSTATE_IDLE; 1268 sc->transfer_cb(sc, sc->transfer_priv, residue, 1269 STATUS_CMD_OK); 1270 1271 return; 1272 } 1273 1274 /***** Bulk Reset *****/ 1275 case TSTATE_BBB_RESET1: 1276 if (err) 1277 printf("%s: BBB reset failed, %s\n", 1278 device_xname(sc->sc_dev), usbd_errstr(err)); 1279 1280 sc->transfer_state = TSTATE_BBB_RESET2; 1281 umass_clear_endpoint_stall(sc, UMASS_BULKIN, 1282 sc->transfer_xfer[XFER_BBB_RESET2]); 1283 1284 return; 1285 case TSTATE_BBB_RESET2: 1286 if (err) /* should not occur */ 1287 printf("%s: BBB bulk-in clear stall failed, %s\n", 1288 device_xname(sc->sc_dev), usbd_errstr(err)); 1289 /* no error recovery, otherwise we end up in a loop */ 1290 1291 sc->transfer_state = TSTATE_BBB_RESET3; 1292 umass_clear_endpoint_stall(sc, UMASS_BULKOUT, 1293 sc->transfer_xfer[XFER_BBB_RESET3]); 1294 1295 return; 1296 case TSTATE_BBB_RESET3: 1297 if (err) /* should not occur */ 1298 printf("%s: BBB bulk-out clear stall failed, %s\n", 1299 device_xname(sc->sc_dev), usbd_errstr(err)); 1300 /* no error recovery, otherwise we end up in a loop */ 1301 1302 sc->transfer_state = TSTATE_IDLE; 1303 if (sc->transfer_priv) { 1304 sc->transfer_cb(sc, sc->transfer_priv, 1305 sc->transfer_datalen, 1306 sc->transfer_status); 1307 } 1308 1309 return; 1310 1311 /***** Default *****/ 1312 default: 1313 panic("%s: Unknown state %d", 1314 device_xname(sc->sc_dev), sc->transfer_state); 1315 } 1316 } 1317 1318 /* 1319 * Command/Bulk/Interrupt (CBI) specific functions 1320 */ 1321 1322 Static int 1323 umass_cbi_adsc(struct umass_softc *sc, char *buffer, int buflen, 1324 usbd_xfer_handle xfer) 1325 { 1326 KASSERTMSG(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I), 1327 "sc->sc_wire == 0x%02x wrong for umass_cbi_adsc\n", 1328 sc->sc_wire); 1329 1330 if ((sc->sc_cmd == UMASS_CPROTO_RBC) && 1331 (sc->sc_quirks & UMASS_QUIRK_RBC_PAD_TO_12) != 0 && buflen < 12) { 1332 (void)memset(buffer + buflen, 0, 12 - buflen); 1333 buflen = 12; 1334 } 1335 1336 sc->sc_req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 1337 sc->sc_req.bRequest = UR_CBI_ADSC; 1338 USETW(sc->sc_req.wValue, 0); 1339 USETW(sc->sc_req.wIndex, sc->sc_ifaceno); 1340 USETW(sc->sc_req.wLength, buflen); 1341 return umass_setup_ctrl_transfer(sc, &sc->sc_req, buffer, 1342 buflen, 0, xfer); 1343 } 1344 1345 1346 Static void 1347 umass_cbi_reset(struct umass_softc *sc, int status) 1348 { 1349 int i; 1350 # define SEND_DIAGNOSTIC_CMDLEN 12 1351 1352 KASSERTMSG(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I), 1353 "sc->sc_wire == 0x%02x wrong for umass_cbi_reset\n", 1354 sc->sc_wire); 1355 1356 if (sc->sc_dying) 1357 return; 1358 1359 /* 1360 * Command Block Reset Protocol 1361 * 1362 * First send a reset request to the device. Then clear 1363 * any possibly stalled bulk endpoints. 1364 1365 * This is done in 3 steps, states: 1366 * TSTATE_CBI_RESET1 1367 * TSTATE_CBI_RESET2 1368 * TSTATE_CBI_RESET3 1369 * 1370 * If the reset doesn't succeed, the device should be port reset. 1371 */ 1372 1373 DPRINTF(UDMASS_CBI, ("%s: CBI Reset\n", 1374 device_xname(sc->sc_dev))); 1375 1376 /* CTASSERT */ 1377 KASSERTMSG(sizeof(sc->cbl) >= SEND_DIAGNOSTIC_CMDLEN, 1378 "%s: CBL struct is too small (%zu < %u)\n", 1379 device_xname(sc->sc_dev), 1380 sizeof(sc->cbl), SEND_DIAGNOSTIC_CMDLEN); 1381 1382 sc->transfer_state = TSTATE_CBI_RESET1; 1383 sc->transfer_status = status; 1384 1385 /* The 0x1d code is the SEND DIAGNOSTIC command. To distingiush between 1386 * the two the last 10 bytes of the cbl is filled with 0xff (section 1387 * 2.2 of the CBI spec). 1388 */ 1389 sc->cbl[0] = 0x1d; /* Command Block Reset */ 1390 sc->cbl[1] = 0x04; 1391 for (i = 2; i < SEND_DIAGNOSTIC_CMDLEN; i++) 1392 sc->cbl[i] = 0xff; 1393 1394 umass_cbi_adsc(sc, sc->cbl, SEND_DIAGNOSTIC_CMDLEN, 1395 sc->transfer_xfer[XFER_CBI_RESET1]); 1396 /* XXX if the command fails we should reset the port on the bub */ 1397 } 1398 1399 Static void 1400 umass_cbi_transfer(struct umass_softc *sc, int lun, 1401 void *cmd, int cmdlen, void *data, int datalen, int dir, 1402 u_int timeout, umass_callback cb, void *priv) 1403 { 1404 DPRINTF(UDMASS_CBI,("%s: umass_cbi_transfer cmd=0x%02x, len=%d\n", 1405 device_xname(sc->sc_dev), *(u_char *)cmd, datalen)); 1406 1407 KASSERTMSG(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I), 1408 "sc->sc_wire == 0x%02x wrong for umass_cbi_transfer\n", 1409 sc->sc_wire); 1410 1411 if (sc->sc_dying) 1412 return; 1413 1414 /* Be a little generous. */ 1415 sc->timeout = timeout + USBD_DEFAULT_TIMEOUT; 1416 1417 /* 1418 * Do a CBI transfer with cmdlen bytes from cmd, possibly 1419 * a data phase of datalen bytes from/to the device and finally a 1420 * csw read phase. 1421 * If the data direction was inbound a maximum of datalen bytes 1422 * is stored in the buffer pointed to by data. 1423 * 1424 * umass_cbi_transfer initialises the transfer and lets the state 1425 * machine in umass_cbi_state handle the completion. It uses the 1426 * following states: 1427 * TSTATE_CBI_COMMAND 1428 * -> XXX fill in 1429 * 1430 * An error in any of those states will invoke 1431 * umass_cbi_reset. 1432 */ 1433 1434 /* check the given arguments */ 1435 KASSERTMSG(datalen == 0 || data != NULL, 1436 "%s: datalen > 0, but no buffer",device_xname(sc->sc_dev)); 1437 KASSERTMSG(datalen == 0 || dir != DIR_NONE, 1438 "%s: direction is NONE while datalen is not zero\n", 1439 device_xname(sc->sc_dev)); 1440 1441 /* store the details for the data transfer phase */ 1442 sc->transfer_dir = dir; 1443 sc->transfer_data = data; 1444 sc->transfer_datalen = datalen; 1445 sc->transfer_actlen = 0; 1446 sc->transfer_cb = cb; 1447 sc->transfer_priv = priv; 1448 sc->transfer_status = STATUS_CMD_OK; 1449 1450 /* move from idle to the command state */ 1451 sc->transfer_state = TSTATE_CBI_COMMAND; 1452 1453 /* Send the Command Block from host to device via control endpoint. */ 1454 if (umass_cbi_adsc(sc, cmd, cmdlen, sc->transfer_xfer[XFER_CBI_CB])) 1455 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1456 } 1457 1458 Static void 1459 umass_cbi_state(usbd_xfer_handle xfer, usbd_private_handle priv, 1460 usbd_status err) 1461 { 1462 struct umass_softc *sc = (struct umass_softc *) priv; 1463 1464 KASSERTMSG(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I), 1465 "sc->sc_wire == 0x%02x wrong for umass_cbi_state\n", 1466 sc->sc_wire); 1467 1468 if (sc->sc_dying) 1469 return; 1470 1471 /* 1472 * State handling for CBI transfers. 1473 */ 1474 1475 DPRINTF(UDMASS_CBI, ("%s: Handling CBI state %d (%s), xfer=%p, %s\n", 1476 device_xname(sc->sc_dev), sc->transfer_state, 1477 states[sc->transfer_state], xfer, usbd_errstr(err))); 1478 1479 switch (sc->transfer_state) { 1480 1481 /***** CBI Transfer *****/ 1482 case TSTATE_CBI_COMMAND: 1483 if (err == USBD_STALLED) { 1484 DPRINTF(UDMASS_CBI, ("%s: Command Transport failed\n", 1485 device_xname(sc->sc_dev))); 1486 /* Status transport by control pipe (section 2.3.2.1). 1487 * The command contained in the command block failed. 1488 * 1489 * The control pipe has already been unstalled by the 1490 * USB stack. 1491 * Section 2.4.3.1.1 states that the bulk in endpoints 1492 * should not stalled at this point. 1493 */ 1494 1495 sc->transfer_state = TSTATE_IDLE; 1496 sc->transfer_cb(sc, sc->transfer_priv, 1497 sc->transfer_datalen, 1498 STATUS_CMD_FAILED); 1499 1500 return; 1501 } else if (err) { 1502 DPRINTF(UDMASS_CBI, ("%s: failed to send ADSC\n", 1503 device_xname(sc->sc_dev))); 1504 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1505 return; 1506 } 1507 1508 /* Data transport phase, setup transfer */ 1509 sc->transfer_state = TSTATE_CBI_DATA; 1510 if (sc->transfer_dir == DIR_IN) { 1511 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN], 1512 sc->data_buffer, sc->transfer_datalen, 1513 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1514 sc->transfer_xfer[XFER_CBI_DATA])) 1515 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1516 1517 return; 1518 } else if (sc->transfer_dir == DIR_OUT) { 1519 memcpy(sc->data_buffer, sc->transfer_data, 1520 sc->transfer_datalen); 1521 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT], 1522 sc->data_buffer, sc->transfer_datalen, 1523 USBD_NO_COPY,/* fixed length transfer */ 1524 sc->transfer_xfer[XFER_CBI_DATA])) 1525 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1526 1527 return; 1528 } else { 1529 DPRINTF(UDMASS_CBI, ("%s: no data phase\n", 1530 device_xname(sc->sc_dev))); 1531 } 1532 1533 /* FALLTHROUGH if no data phase, err == 0 */ 1534 case TSTATE_CBI_DATA: 1535 /* Command transport phase error handling (ignored if no data 1536 * phase (fallthrough from previous state)) */ 1537 if (sc->transfer_dir != DIR_NONE) { 1538 /* retrieve the length of the transfer that was done */ 1539 usbd_get_xfer_status(xfer, NULL, NULL, 1540 &sc->transfer_actlen, NULL); 1541 DPRINTF(UDMASS_CBI, ("%s: CBI_DATA actlen=%d\n", 1542 device_xname(sc->sc_dev), sc->transfer_actlen)); 1543 1544 if (err) { 1545 DPRINTF(UDMASS_CBI, ("%s: Data-%s %d failed, " 1546 "%s\n", device_xname(sc->sc_dev), 1547 (sc->transfer_dir == DIR_IN?"in":"out"), 1548 sc->transfer_datalen,usbd_errstr(err))); 1549 1550 if (err == USBD_STALLED) { 1551 sc->transfer_state = TSTATE_CBI_DCLEAR; 1552 umass_clear_endpoint_stall(sc, 1553 (sc->transfer_dir == DIR_IN? 1554 UMASS_BULKIN:UMASS_BULKOUT), 1555 sc->transfer_xfer[XFER_CBI_DCLEAR]); 1556 } else { 1557 /* Unless the error is a pipe stall the 1558 * error is fatal. 1559 */ 1560 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1561 } 1562 return; 1563 } 1564 } 1565 1566 if (sc->transfer_dir == DIR_IN) 1567 memcpy(sc->transfer_data, sc->data_buffer, 1568 sc->transfer_actlen); 1569 1570 DIF(UDMASS_CBI, if (sc->transfer_dir == DIR_IN) 1571 umass_dump_buffer(sc, sc->transfer_data, 1572 sc->transfer_actlen, 48)); 1573 1574 /* Status phase */ 1575 if (sc->sc_wire == UMASS_WPROTO_CBI_I) { 1576 sc->transfer_state = TSTATE_CBI_STATUS; 1577 memset(&sc->sbl, 0, sizeof(sc->sbl)); 1578 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_INTRIN], 1579 &sc->sbl, sizeof(sc->sbl), 1580 0, /* fixed length transfer */ 1581 sc->transfer_xfer[XFER_CBI_STATUS])) 1582 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1583 } else { 1584 /* No command completion interrupt. Request 1585 * sense to get status of command. 1586 */ 1587 sc->transfer_state = TSTATE_IDLE; 1588 sc->transfer_cb(sc, sc->transfer_priv, 1589 sc->transfer_datalen - sc->transfer_actlen, 1590 STATUS_CMD_UNKNOWN); 1591 } 1592 return; 1593 1594 case TSTATE_CBI_STATUS: 1595 if (err) { 1596 DPRINTF(UDMASS_CBI, ("%s: Status Transport failed\n", 1597 device_xname(sc->sc_dev))); 1598 /* Status transport by interrupt pipe (section 2.3.2.2). 1599 */ 1600 1601 if (err == USBD_STALLED) { 1602 sc->transfer_state = TSTATE_CBI_SCLEAR; 1603 umass_clear_endpoint_stall(sc, UMASS_INTRIN, 1604 sc->transfer_xfer[XFER_CBI_SCLEAR]); 1605 } else { 1606 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1607 } 1608 return; 1609 } 1610 1611 /* Dissect the information in the buffer */ 1612 1613 { 1614 u_int32_t actlen; 1615 usbd_get_xfer_status(xfer,NULL,NULL,&actlen,NULL); 1616 DPRINTF(UDMASS_CBI, ("%s: CBI_STATUS actlen=%d\n", 1617 device_xname(sc->sc_dev), actlen)); 1618 if (actlen != 2) 1619 break; 1620 } 1621 1622 if (sc->sc_cmd == UMASS_CPROTO_UFI) { 1623 int status; 1624 1625 /* Section 3.4.3.1.3 specifies that the UFI command 1626 * protocol returns an ASC and ASCQ in the interrupt 1627 * data block. 1628 */ 1629 1630 DPRINTF(UDMASS_CBI, ("%s: UFI CCI, ASC = 0x%02x, " 1631 "ASCQ = 0x%02x\n", 1632 device_xname(sc->sc_dev), 1633 sc->sbl.ufi.asc, sc->sbl.ufi.ascq)); 1634 1635 if ((sc->sbl.ufi.asc == 0 && sc->sbl.ufi.ascq == 0) || 1636 sc->sc_sense) 1637 status = STATUS_CMD_OK; 1638 else 1639 status = STATUS_CMD_FAILED; 1640 1641 /* No autosense, command successful */ 1642 sc->transfer_state = TSTATE_IDLE; 1643 sc->transfer_cb(sc, sc->transfer_priv, 1644 sc->transfer_datalen - sc->transfer_actlen, status); 1645 } else { 1646 int status; 1647 1648 /* Command Interrupt Data Block */ 1649 1650 DPRINTF(UDMASS_CBI, ("%s: type=0x%02x, value=0x%02x\n", 1651 device_xname(sc->sc_dev), 1652 sc->sbl.common.type, sc->sbl.common.value)); 1653 1654 if (sc->sbl.common.type == IDB_TYPE_CCI) { 1655 switch (sc->sbl.common.value & IDB_VALUE_STATUS_MASK) { 1656 case IDB_VALUE_PASS: 1657 status = STATUS_CMD_OK; 1658 break; 1659 case IDB_VALUE_FAIL: 1660 case IDB_VALUE_PERSISTENT: 1661 status = STATUS_CMD_FAILED; 1662 break; 1663 case IDB_VALUE_PHASE: 1664 default: /* XXX: gcc */ 1665 status = STATUS_WIRE_FAILED; 1666 break; 1667 } 1668 1669 sc->transfer_state = TSTATE_IDLE; 1670 sc->transfer_cb(sc, sc->transfer_priv, 1671 sc->transfer_datalen - sc->transfer_actlen, status); 1672 } 1673 } 1674 return; 1675 1676 case TSTATE_CBI_DCLEAR: 1677 if (err) { /* should not occur */ 1678 printf("%s: CBI bulk-%s stall clear failed, %s\n", 1679 device_xname(sc->sc_dev), 1680 (sc->transfer_dir == DIR_IN? "in":"out"), 1681 usbd_errstr(err)); 1682 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1683 } else { 1684 sc->transfer_state = TSTATE_IDLE; 1685 sc->transfer_cb(sc, sc->transfer_priv, 1686 sc->transfer_datalen, STATUS_CMD_FAILED); 1687 } 1688 return; 1689 1690 case TSTATE_CBI_SCLEAR: 1691 if (err) { /* should not occur */ 1692 printf("%s: CBI intr-in stall clear failed, %s\n", 1693 device_xname(sc->sc_dev), usbd_errstr(err)); 1694 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1695 } else { 1696 sc->transfer_state = TSTATE_IDLE; 1697 sc->transfer_cb(sc, sc->transfer_priv, 1698 sc->transfer_datalen, STATUS_CMD_FAILED); 1699 } 1700 return; 1701 1702 /***** CBI Reset *****/ 1703 case TSTATE_CBI_RESET1: 1704 if (err) 1705 printf("%s: CBI reset failed, %s\n", 1706 device_xname(sc->sc_dev), usbd_errstr(err)); 1707 1708 sc->transfer_state = TSTATE_CBI_RESET2; 1709 umass_clear_endpoint_stall(sc, UMASS_BULKIN, 1710 sc->transfer_xfer[XFER_CBI_RESET2]); 1711 1712 return; 1713 case TSTATE_CBI_RESET2: 1714 if (err) /* should not occur */ 1715 printf("%s: CBI bulk-in stall clear failed, %s\n", 1716 device_xname(sc->sc_dev), usbd_errstr(err)); 1717 /* no error recovery, otherwise we end up in a loop */ 1718 1719 sc->transfer_state = TSTATE_CBI_RESET3; 1720 umass_clear_endpoint_stall(sc, UMASS_BULKOUT, 1721 sc->transfer_xfer[XFER_CBI_RESET3]); 1722 1723 return; 1724 case TSTATE_CBI_RESET3: 1725 if (err) /* should not occur */ 1726 printf("%s: CBI bulk-out stall clear failed, %s\n", 1727 device_xname(sc->sc_dev), usbd_errstr(err)); 1728 /* no error recovery, otherwise we end up in a loop */ 1729 1730 sc->transfer_state = TSTATE_IDLE; 1731 if (sc->transfer_priv) { 1732 sc->transfer_cb(sc, sc->transfer_priv, 1733 sc->transfer_datalen, 1734 sc->transfer_status); 1735 } 1736 1737 return; 1738 1739 1740 /***** Default *****/ 1741 default: 1742 panic("%s: Unknown state %d", 1743 device_xname(sc->sc_dev), sc->transfer_state); 1744 } 1745 } 1746 1747 usbd_status 1748 umass_bbb_get_max_lun(struct umass_softc *sc, u_int8_t *maxlun) 1749 { 1750 usb_device_request_t req; 1751 usbd_status err; 1752 1753 *maxlun = 0; /* Default to 0. */ 1754 1755 DPRINTF(UDMASS_BBB, ("%s: Get Max Lun\n", device_xname(sc->sc_dev))); 1756 1757 /* The Get Max Lun command is a class-specific request. */ 1758 req.bmRequestType = UT_READ_CLASS_INTERFACE; 1759 req.bRequest = UR_BBB_GET_MAX_LUN; 1760 USETW(req.wValue, 0); 1761 USETW(req.wIndex, sc->sc_ifaceno); 1762 USETW(req.wLength, 1); 1763 1764 err = usbd_do_request_flags(sc->sc_udev, &req, maxlun, 1765 USBD_SHORT_XFER_OK, 0, USBD_DEFAULT_TIMEOUT); 1766 switch (err) { 1767 case USBD_NORMAL_COMPLETION: 1768 DPRINTF(UDMASS_BBB, ("%s: Max Lun %d\n", 1769 device_xname(sc->sc_dev), *maxlun)); 1770 break; 1771 1772 case USBD_STALLED: 1773 /* 1774 * Device doesn't support Get Max Lun request. 1775 */ 1776 err = USBD_NORMAL_COMPLETION; 1777 DPRINTF(UDMASS_BBB, ("%s: Get Max Lun not supported\n", 1778 device_xname(sc->sc_dev))); 1779 break; 1780 1781 case USBD_SHORT_XFER: 1782 /* 1783 * XXX This must mean Get Max Lun is not supported, too! 1784 */ 1785 err = USBD_NORMAL_COMPLETION; 1786 DPRINTF(UDMASS_BBB, ("%s: Get Max Lun SHORT_XFER\n", 1787 device_xname(sc->sc_dev))); 1788 break; 1789 1790 default: 1791 printf("%s: Get Max Lun failed: %s\n", 1792 device_xname(sc->sc_dev), usbd_errstr(err)); 1793 /* XXX Should we port_reset the device? */ 1794 break; 1795 } 1796 1797 return (err); 1798 } 1799 1800 1801 1802 1803 #ifdef UMASS_DEBUG 1804 Static void 1805 umass_bbb_dump_cbw(struct umass_softc *sc, umass_bbb_cbw_t *cbw) 1806 { 1807 int clen = cbw->bCDBLength; 1808 int dlen = UGETDW(cbw->dCBWDataTransferLength); 1809 u_int8_t *c = cbw->CBWCDB; 1810 int tag = UGETDW(cbw->dCBWTag); 1811 int flags = cbw->bCBWFlags; 1812 1813 DPRINTF(UDMASS_BBB, ("%s: CBW %d: cmdlen=%d " 1814 "(0x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%s), " 1815 "data = %d bytes, dir = %s\n", 1816 device_xname(sc->sc_dev), tag, clen, 1817 c[0], c[1], c[2], c[3], c[4], c[5], 1818 c[6], c[7], c[8], c[9], 1819 (clen > 10? "...":""), 1820 dlen, (flags == CBWFLAGS_IN? "in": 1821 (flags == CBWFLAGS_OUT? "out":"<invalid>")))); 1822 } 1823 1824 Static void 1825 umass_bbb_dump_csw(struct umass_softc *sc, umass_bbb_csw_t *csw) 1826 { 1827 int sig = UGETDW(csw->dCSWSignature); 1828 int tag = UGETDW(csw->dCSWTag); 1829 int res = UGETDW(csw->dCSWDataResidue); 1830 int status = csw->bCSWStatus; 1831 1832 DPRINTF(UDMASS_BBB, ("%s: CSW %d: sig = 0x%08x (%s), tag = %d, " 1833 "res = %d, status = 0x%02x (%s)\n", device_xname(sc->sc_dev), 1834 tag, sig, (sig == CSWSIGNATURE? "valid":"invalid"), 1835 tag, res, 1836 status, (status == CSWSTATUS_GOOD? "good": 1837 (status == CSWSTATUS_FAILED? "failed": 1838 (status == CSWSTATUS_PHASE? "phase":"<invalid>"))))); 1839 } 1840 1841 Static void 1842 umass_dump_buffer(struct umass_softc *sc, u_int8_t *buffer, int buflen, 1843 int printlen) 1844 { 1845 int i, j; 1846 char s1[40]; 1847 char s2[40]; 1848 char s3[5]; 1849 1850 s1[0] = '\0'; 1851 s3[0] = '\0'; 1852 1853 snprintf(s2, sizeof(s2), " buffer=%p, buflen=%d", buffer, buflen); 1854 for (i = 0; i < buflen && i < printlen; i++) { 1855 j = i % 16; 1856 if (j == 0 && i != 0) { 1857 DPRINTF(UDMASS_GEN, ("%s: 0x %s%s\n", 1858 device_xname(sc->sc_dev), s1, s2)); 1859 s2[0] = '\0'; 1860 } 1861 snprintf(&s1[j * 2], sizeof(s1) - j * 2, "%02x", 1862 buffer[i] & 0xff); 1863 } 1864 if (buflen > printlen) 1865 snprintf(s3, sizeof(s3), " ..."); 1866 DPRINTF(UDMASS_GEN, ("%s: 0x %s%s%s\n", 1867 device_xname(sc->sc_dev), s1, s2, s3)); 1868 } 1869 #endif 1870
Indexes created Tue Oct 14 11:09:46 GMT 2025