umass.c revision 1.102
1 /* $NetBSD: umass.c,v 1.102 2003/09/10 05:42:18 mycroft 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. Hamnnum. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /*- 40 * Copyright (c) 1999 MAEKAWA Masahide <bishop (at) rr.iij4u.or.jp>, 41 * Nick Hibma <n_hibma (at) freebsd.org> 42 * All rights reserved. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * $FreeBSD: src/sys/dev/usb/umass.c,v 1.13 2000/03/26 01:39:12 n_hibma Exp $ 66 */ 67 68 /* 69 * Universal Serial Bus Mass Storage Class specs: 70 * http://www.usb.org/developers/data/devclass/usbmassover_11.pdf 71 * http://www.usb.org/developers/data/devclass/usbmassbulk_10.pdf 72 * http://www.usb.org/developers/data/devclass/usbmass-cbi10.pdf 73 * http://www.usb.org/developers/data/devclass/usbmass-ufi10.pdf 74 */ 75 76 /* 77 * Ported to NetBSD by Lennart Augustsson <augustss (at) netbsd.org>. 78 * Parts of the code written by Jason R. Thorpe <thorpej (at) shagadelic.org>. 79 */ 80 81 /* 82 * The driver handles 3 Wire Protocols 83 * - Command/Bulk/Interrupt (CBI) 84 * - Command/Bulk/Interrupt with Command Completion Interrupt (CBI with CCI) 85 * - Mass Storage Bulk-Only (BBB) 86 * (BBB refers Bulk/Bulk/Bulk for Command/Data/Status phases) 87 * 88 * Over these wire protocols it handles the following command protocols 89 * - SCSI 90 * - 8070 (ATA/ATAPI for rewritable removable media) 91 * - UFI (USB Floppy Interface) 92 * 93 * 8070i is a transformed version of the SCSI command set. UFI is a transformed 94 * version of the 8070i command set. The sc->transform method is used to 95 * convert the commands into the appropriate format (if at all necessary). 96 * For example, ATAPI requires all commands to be 12 bytes in length amongst 97 * other things. 98 * 99 * The source code below is marked and can be split into a number of pieces 100 * (in this order): 101 * 102 * - probe/attach/detach 103 * - generic transfer routines 104 * - BBB 105 * - CBI 106 * - CBI_I (in addition to functions from CBI) 107 * - CAM (Common Access Method) 108 * - SCSI 109 * - UFI 110 * - 8070i 111 * 112 * The protocols are implemented using a state machine, for the transfers as 113 * well as for the resets. The state machine is contained in umass_*_state. 114 * The state machine is started through either umass_*_transfer or 115 * umass_*_reset. 116 * 117 * The reason for doing this is a) CAM performs a lot better this way and b) it 118 * avoids using tsleep from interrupt context (for example after a failed 119 * transfer). 120 */ 121 122 /* 123 * The SCSI related part of this driver has been derived from the 124 * dev/ppbus/vpo.c driver, by Nicolas Souchu (nsouch (at) freebsd.org). 125 * 126 * The CAM layer uses so called actions which are messages sent to the host 127 * adapter for completion. The actions come in through umass_cam_action. The 128 * appropriate block of routines is called depending on the transport protocol 129 * in use. When the transfer has finished, these routines call 130 * umass_cam_cb again to complete the CAM command. 131 */ 132 133 #include <sys/cdefs.h> 134 __KERNEL_RCSID(0, "$NetBSD: umass.c,v 1.102 2003/09/10 05:42:18 mycroft Exp $"); 135 136 #include "atapibus.h" 137 #include "scsibus.h" 138 #include "wd.h" 139 140 #include <sys/param.h> 141 #include <sys/systm.h> 142 #include <sys/kernel.h> 143 #include <sys/conf.h> 144 #if defined(__NetBSD__) || defined(__OpenBSD__) 145 #include <sys/buf.h> 146 #include <sys/device.h> 147 #include <sys/malloc.h> 148 #undef KASSERT 149 #define KASSERT(cond, msg) 150 #elif defined(__FreeBSD__) 151 #include <sys/module.h> 152 #include <sys/bus.h> 153 #include <machine/clock.h> 154 #endif 155 156 #include <dev/usb/usb.h> 157 #include <dev/usb/usbdi.h> 158 #include <dev/usb/usbdi_util.h> 159 #include <dev/usb/usbdevs.h> 160 161 #include <dev/usb/umassvar.h> 162 #include <dev/usb/umass_quirks.h> 163 #include <dev/usb/umass_scsipi.h> 164 #include <dev/usb/umass_isdata.h> 165 166 #include <dev/scsipi/scsipi_all.h> 167 #include <dev/scsipi/scsipiconf.h> 168 169 170 #ifdef UMASS_DEBUG 171 int umassdebug = 0; 172 173 char *states[TSTATE_STATES+1] = { 174 /* should be kept in sync with the list at transfer_state */ 175 "Idle", 176 "BBB CBW", 177 "BBB Data", 178 "BBB Data bulk-in/-out clear stall", 179 "BBB CSW, 1st attempt", 180 "BBB CSW bulk-in clear stall", 181 "BBB CSW, 2nd attempt", 182 "BBB Reset", 183 "BBB bulk-in clear stall", 184 "BBB bulk-out clear stall", 185 "CBI Command", 186 "CBI Data", 187 "CBI Status", 188 "CBI Data bulk-in/-out clear stall", 189 "CBI Status intr-in clear stall", 190 "CBI Reset", 191 "CBI bulk-in clear stall", 192 "CBI bulk-out clear stall", 193 NULL 194 }; 195 #endif 196 197 /* USB device probe/attach/detach functions */ 198 USB_DECLARE_DRIVER(umass); 199 Static void umass_disco(struct umass_softc *sc); 200 201 /* generic transfer functions */ 202 Static usbd_status umass_setup_transfer(struct umass_softc *sc, 203 usbd_pipe_handle pipe, 204 void *buffer, int buflen, int flags, 205 usbd_xfer_handle xfer); 206 Static usbd_status umass_setup_ctrl_transfer(struct umass_softc *sc, 207 usb_device_request_t *req, 208 void *buffer, int buflen, int flags, 209 usbd_xfer_handle xfer); 210 Static void umass_clear_endpoint_stall(struct umass_softc *sc, int endpt, 211 usbd_xfer_handle xfer); 212 #if 0 213 Static void umass_reset(struct umass_softc *sc, transfer_cb_f cb, void *priv); 214 #endif 215 216 /* Bulk-Only related functions */ 217 Static void umass_bbb_transfer(struct umass_softc *, int, void *, int, void *, 218 int, int, u_int, umass_callback, void *); 219 Static void umass_bbb_reset(struct umass_softc *, int); 220 Static void umass_bbb_state(usbd_xfer_handle, usbd_private_handle, usbd_status); 221 222 usbd_status umass_bbb_get_max_lun(struct umass_softc *, u_int8_t *); 223 224 /* CBI related functions */ 225 Static void umass_cbi_transfer(struct umass_softc *, int, void *, int, void *, 226 int, int, u_int, umass_callback, void *); 227 Static void umass_cbi_reset(struct umass_softc *, int); 228 Static void umass_cbi_state(usbd_xfer_handle, usbd_private_handle, usbd_status); 229 230 Static int umass_cbi_adsc(struct umass_softc *, char *, int, usbd_xfer_handle); 231 232 const struct umass_wire_methods umass_bbb_methods = { 233 umass_bbb_transfer, 234 umass_bbb_reset, 235 umass_bbb_state 236 }; 237 238 const struct umass_wire_methods umass_cbi_methods = { 239 umass_cbi_transfer, 240 umass_cbi_reset, 241 umass_cbi_state 242 }; 243 244 #ifdef UMASS_DEBUG 245 /* General debugging functions */ 246 Static void umass_bbb_dump_cbw(struct umass_softc *sc, 247 umass_bbb_cbw_t *cbw); 248 Static void umass_bbb_dump_csw(struct umass_softc *sc, 249 umass_bbb_csw_t *csw); 250 Static void umass_dump_buffer(struct umass_softc *sc, u_int8_t *buffer, 251 int buflen, int printlen); 252 #endif 253 254 255 /* 256 * USB device probe/attach/detach 257 */ 258 259 USB_MATCH(umass) 260 { 261 USB_MATCH_START(umass, uaa); 262 const struct umass_quirk *quirk; 263 usb_interface_descriptor_t *id; 264 265 if (uaa->iface == NULL) 266 return (UMATCH_NONE); 267 268 quirk = umass_lookup(uaa->vendor, uaa->product); 269 if (quirk != NULL) 270 return (quirk->uq_match); 271 272 id = usbd_get_interface_descriptor(uaa->iface); 273 if (id == NULL || id->bInterfaceClass != UICLASS_MASS) 274 return (UMATCH_NONE); 275 276 switch (id->bInterfaceSubClass) { 277 case UISUBCLASS_RBC: 278 case UISUBCLASS_SFF8020I: 279 case UISUBCLASS_QIC157: 280 case UISUBCLASS_UFI: 281 case UISUBCLASS_SFF8070I: 282 case UISUBCLASS_SCSI: 283 break; 284 default: 285 return (UMATCH_IFACECLASS); 286 } 287 288 switch (id->bInterfaceProtocol) { 289 case UIPROTO_MASS_CBI_I: 290 case UIPROTO_MASS_CBI: 291 case UIPROTO_MASS_BBB_OLD: 292 case UIPROTO_MASS_BBB: 293 break; 294 default: 295 return (UMATCH_IFACECLASS_IFACESUBCLASS); 296 } 297 298 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO); 299 } 300 301 USB_ATTACH(umass) 302 { 303 USB_ATTACH_START(umass, sc, uaa); 304 const struct umass_quirk *quirk; 305 usb_interface_descriptor_t *id; 306 usb_endpoint_descriptor_t *ed; 307 const char *sWire, *sCommand; 308 char devinfo[1024]; 309 usbd_status err; 310 int i, bno, error; 311 312 usbd_devinfo(uaa->device, 0, devinfo); 313 USB_ATTACH_SETUP; 314 315 sc->sc_udev = uaa->device; 316 sc->sc_iface = uaa->iface; 317 sc->sc_ifaceno = uaa->ifaceno; 318 319 quirk = umass_lookup(uaa->vendor, uaa->product); 320 if (quirk != NULL) { 321 sc->sc_wire = quirk->uq_wire; 322 sc->sc_cmd = quirk->uq_cmd; 323 sc->sc_quirks = quirk->uq_flags; 324 sc->sc_busquirks = quirk->uq_busquirks; 325 326 if (quirk->uq_fixup != NULL) 327 (*quirk->uq_fixup)(sc); 328 } else { 329 sc->sc_wire = UMASS_WPROTO_UNSPEC; 330 sc->sc_cmd = UMASS_CPROTO_UNSPEC; 331 sc->sc_quirks = 0; 332 sc->sc_busquirks = 0; 333 } 334 335 id = usbd_get_interface_descriptor(sc->sc_iface); 336 if (id == NULL) 337 USB_ATTACH_ERROR_RETURN; 338 339 if (sc->sc_wire == UMASS_WPROTO_UNSPEC) { 340 switch (id->bInterfaceProtocol) { 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 USBDEVNAME(sc->sc_dev), 355 id->bInterfaceProtocol)); 356 USB_ATTACH_ERROR_RETURN; 357 } 358 } 359 360 if (sc->sc_cmd == UMASS_CPROTO_UNSPEC) { 361 switch (id->bInterfaceSubClass) { 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 USBDEVNAME(sc->sc_dev), 380 id->bInterfaceSubClass)); 381 USB_ATTACH_ERROR_RETURN; 382 } 383 } 384 385 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 386 387 switch (sc->sc_wire) { 388 case UMASS_WPROTO_CBI: 389 sWire = "CBI"; 390 break; 391 case UMASS_WPROTO_CBI_I: 392 sWire = "CBI with CCI"; 393 break; 394 case UMASS_WPROTO_BBB: 395 sWire = "Bulk-Only"; 396 break; 397 default: 398 sWire = "unknown"; 399 break; 400 } 401 402 switch (sc->sc_cmd) { 403 case UMASS_CPROTO_RBC: 404 sCommand = "RBC"; 405 break; 406 case UMASS_CPROTO_SCSI: 407 sCommand = "SCSI"; 408 break; 409 case UMASS_CPROTO_UFI: 410 sCommand = "UFI"; 411 break; 412 case UMASS_CPROTO_ATAPI: 413 sCommand = "ATAPI"; 414 break; 415 case UMASS_CPROTO_ISD_ATA: 416 sCommand = "ISD-ATA"; 417 break; 418 default: 419 sCommand = "unknown"; 420 break; 421 } 422 423 printf("%s: using %s over %s\n", USBDEVNAME(sc->sc_dev), sCommand, 424 sWire); 425 426 /* 427 * In addition to the Control endpoint the following endpoints 428 * are required: 429 * a) bulk-in endpoint. 430 * b) bulk-out endpoint. 431 * and for Control/Bulk/Interrupt with CCI (CBI_I) 432 * c) intr-in 433 * 434 * The endpoint addresses are not fixed, so we have to read them 435 * from the device descriptors of the current interface. 436 */ 437 for (i = 0 ; i < id->bNumEndpoints ; i++) { 438 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 439 if (ed == NULL) { 440 printf("%s: could not read endpoint descriptor\n", 441 USBDEVNAME(sc->sc_dev)); 442 USB_ATTACH_ERROR_RETURN; 443 } 444 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN 445 && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 446 sc->sc_epaddr[UMASS_BULKIN] = ed->bEndpointAddress; 447 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT 448 && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 449 sc->sc_epaddr[UMASS_BULKOUT] = ed->bEndpointAddress; 450 } else if (sc->sc_wire == UMASS_WPROTO_CBI_I 451 && UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN 452 && (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 453 sc->sc_epaddr[UMASS_INTRIN] = ed->bEndpointAddress; 454 #ifdef UMASS_DEBUG 455 if (UGETW(ed->wMaxPacketSize) > 2) { 456 DPRINTF(UDMASS_CBI, ("%s: intr size is %d\n", 457 USBDEVNAME(sc->sc_dev), 458 UGETW(ed->wMaxPacketSize))); 459 } 460 #endif 461 } 462 } 463 464 /* check whether we found all the endpoints we need */ 465 if (!sc->sc_epaddr[UMASS_BULKIN] || !sc->sc_epaddr[UMASS_BULKOUT] || 466 (sc->sc_wire == UMASS_WPROTO_CBI_I && 467 !sc->sc_epaddr[UMASS_INTRIN])) { 468 DPRINTF(UDMASS_USB, ("%s: endpoint not found %u/%u/%u\n", 469 USBDEVNAME(sc->sc_dev), sc->sc_epaddr[UMASS_BULKIN], 470 sc->sc_epaddr[UMASS_BULKOUT], 471 sc->sc_epaddr[UMASS_INTRIN])); 472 USB_ATTACH_ERROR_RETURN; 473 } 474 475 /* 476 * Get the maximum LUN supported by the device. 477 */ 478 if (sc->sc_wire == UMASS_WPROTO_BBB) { 479 err = umass_bbb_get_max_lun(sc, &sc->maxlun); 480 if (err) { 481 printf("%s: unable to get Max Lun: %s\n", 482 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 483 USB_ATTACH_ERROR_RETURN; 484 } 485 if (sc->maxlun > 0) 486 sc->sc_busquirks |= PQUIRK_FORCELUNS; 487 } else { 488 sc->maxlun = 0; 489 } 490 491 /* Open the bulk-in and -out pipe */ 492 DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for BULKOUT\n", 493 USBDEVNAME(sc->sc_dev), sc->sc_iface, 494 sc->sc_epaddr[UMASS_BULKOUT])); 495 err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_BULKOUT], 496 USBD_EXCLUSIVE_USE, 497 &sc->sc_pipe[UMASS_BULKOUT]); 498 if (err) { 499 DPRINTF(UDMASS_USB, ("%s: cannot open %u-out pipe (bulk)\n", 500 USBDEVNAME(sc->sc_dev), sc->sc_epaddr[UMASS_BULKOUT])); 501 umass_disco(sc); 502 USB_ATTACH_ERROR_RETURN; 503 } 504 DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for BULKIN\n", 505 USBDEVNAME(sc->sc_dev), sc->sc_iface, 506 sc->sc_epaddr[UMASS_BULKIN])); 507 err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_BULKIN], 508 USBD_EXCLUSIVE_USE, &sc->sc_pipe[UMASS_BULKIN]); 509 if (err) { 510 DPRINTF(UDMASS_USB, ("%s: could not open %u-in pipe (bulk)\n", 511 USBDEVNAME(sc->sc_dev), sc->sc_epaddr[UMASS_BULKIN])); 512 umass_disco(sc); 513 USB_ATTACH_ERROR_RETURN; 514 } 515 /* 516 * Open the intr-in pipe if the protocol is CBI with CCI. 517 * Note: early versions of the Zip drive do have an interrupt pipe, but 518 * this pipe is unused 519 * 520 * We do not open the interrupt pipe as an interrupt pipe, but as a 521 * normal bulk endpoint. We send an IN transfer down the wire at the 522 * appropriate time, because we know exactly when to expect data on 523 * that endpoint. This saves bandwidth, but more important, makes the 524 * code for handling the data on that endpoint simpler. No data 525 * arriving concurrently. 526 */ 527 if (sc->sc_wire == UMASS_WPROTO_CBI_I) { 528 DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for INTRIN\n", 529 USBDEVNAME(sc->sc_dev), sc->sc_iface, 530 sc->sc_epaddr[UMASS_INTRIN])); 531 err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_INTRIN], 532 USBD_EXCLUSIVE_USE, &sc->sc_pipe[UMASS_INTRIN]); 533 if (err) { 534 DPRINTF(UDMASS_USB, ("%s: couldn't open %u-in (intr)\n", 535 USBDEVNAME(sc->sc_dev), 536 sc->sc_epaddr[UMASS_INTRIN])); 537 umass_disco(sc); 538 USB_ATTACH_ERROR_RETURN; 539 } 540 } 541 542 /* initialisation of generic part */ 543 sc->transfer_state = TSTATE_IDLE; 544 545 /* request a sufficient number of xfer handles */ 546 for (i = 0; i < XFER_NR; i++) { 547 sc->transfer_xfer[i] = usbd_alloc_xfer(uaa->device); 548 if (sc->transfer_xfer[i] == NULL) { 549 DPRINTF(UDMASS_USB, ("%s: Out of memory\n", 550 USBDEVNAME(sc->sc_dev))); 551 umass_disco(sc); 552 USB_ATTACH_ERROR_RETURN; 553 } 554 } 555 /* Allocate buffer for data transfer (it's huge). */ 556 switch (sc->sc_wire) { 557 case UMASS_WPROTO_BBB: 558 bno = XFER_BBB_DATA; 559 goto dalloc; 560 case UMASS_WPROTO_CBI: 561 bno = XFER_CBI_DATA; 562 goto dalloc; 563 case UMASS_WPROTO_CBI_I: 564 bno = XFER_CBI_DATA; 565 dalloc: 566 sc->data_buffer = usbd_alloc_buffer(sc->transfer_xfer[bno], 567 UMASS_MAX_TRANSFER_SIZE); 568 if (sc->data_buffer == NULL) { 569 umass_disco(sc); 570 USB_ATTACH_ERROR_RETURN; 571 } 572 break; 573 default: 574 break; 575 } 576 577 /* Initialise the wire protocol specific methods */ 578 switch (sc->sc_wire) { 579 case UMASS_WPROTO_BBB: 580 sc->sc_methods = &umass_bbb_methods; 581 break; 582 case UMASS_WPROTO_CBI: 583 case UMASS_WPROTO_CBI_I: 584 sc->sc_methods = &umass_cbi_methods; 585 break; 586 default: 587 umass_disco(sc); 588 USB_ATTACH_ERROR_RETURN; 589 } 590 591 if (quirk != NULL && quirk->uq_init != NULL) { 592 err = (*quirk->uq_init)(sc); 593 if (err) { 594 umass_disco(sc); 595 USB_ATTACH_ERROR_RETURN; 596 } 597 } 598 599 error = 0; 600 switch (sc->sc_cmd) { 601 case UMASS_CPROTO_RBC: 602 case UMASS_CPROTO_SCSI: 603 #if NSCSIBUS > 0 604 error = umass_scsi_attach(sc); 605 #else 606 printf("%s: scsibus not configured\n", USBDEVNAME(sc->sc_dev)); 607 #endif 608 break; 609 610 case UMASS_CPROTO_UFI: 611 case UMASS_CPROTO_ATAPI: 612 #if NATAPIBUS > 0 613 error = umass_atapi_attach(sc); 614 #else 615 printf("%s: atapibus not configured\n", 616 USBDEVNAME(sc->sc_dev)); 617 #endif 618 break; 619 620 case UMASS_CPROTO_ISD_ATA: 621 #if NWD > 0 622 error = umass_isdata_attach(sc); 623 #else 624 printf("%s: isdata not configured\n", USBDEVNAME(sc->sc_dev)); 625 #endif 626 break; 627 628 default: 629 printf("%s: command protocol=0x%x not supported\n", 630 USBDEVNAME(sc->sc_dev), sc->sc_cmd); 631 umass_disco(sc); 632 USB_ATTACH_ERROR_RETURN; 633 } 634 if (error) { 635 printf("%s: bus attach failed\n", USBDEVNAME(sc->sc_dev)); 636 umass_disco(sc); 637 USB_ATTACH_ERROR_RETURN; 638 } 639 640 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 641 USBDEV(sc->sc_dev)); 642 643 DPRINTF(UDMASS_GEN, ("%s: Attach finished\n", USBDEVNAME(sc->sc_dev))); 644 645 USB_ATTACH_SUCCESS_RETURN; 646 } 647 648 USB_DETACH(umass) 649 { 650 USB_DETACH_START(umass, sc); 651 struct umassbus_softc *scbus = sc->bus; 652 int rv = 0, i, s; 653 654 DPRINTF(UDMASS_USB, ("%s: detached\n", USBDEVNAME(sc->sc_dev))); 655 656 /* Abort the pipes to wake up any waiting processes. */ 657 for (i = 0 ; i < UMASS_NEP ; i++) { 658 if (sc->sc_pipe[i] != NULL) 659 usbd_abort_pipe(sc->sc_pipe[i]); 660 } 661 662 /* Do we really need reference counting? Perhaps in ioctl() */ 663 s = splusb(); 664 if (--sc->sc_refcnt >= 0) { 665 #ifdef DIAGNOSTIC 666 printf("%s: waiting for refcnt\n", USBDEVNAME(sc->sc_dev)); 667 #endif 668 /* Wait for processes to go away. */ 669 usb_detach_wait(USBDEV(sc->sc_dev)); 670 } 671 splx(s); 672 673 if (scbus != NULL) { 674 if (scbus->sc_child != NULL) 675 rv = config_detach(scbus->sc_child, flags); 676 free(scbus, M_DEVBUF); 677 sc->bus = NULL; 678 } 679 680 if (rv != 0) 681 return (rv); 682 683 umass_disco(sc); 684 685 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 686 USBDEV(sc->sc_dev)); 687 688 return (rv); 689 } 690 691 int 692 umass_activate(struct device *dev, enum devact act) 693 { 694 struct umass_softc *sc = (struct umass_softc *)dev; 695 struct umassbus_softc *scbus = sc->bus; 696 int rv = 0; 697 698 DPRINTF(UDMASS_USB, ("%s: umass_activate: %d\n", 699 USBDEVNAME(sc->sc_dev), act)); 700 701 switch (act) { 702 case DVACT_ACTIVATE: 703 rv = EOPNOTSUPP; 704 break; 705 706 case DVACT_DEACTIVATE: 707 sc->sc_dying = 1; 708 if (scbus == NULL || scbus->sc_child == NULL) 709 break; 710 rv = config_deactivate(scbus->sc_child); 711 DPRINTF(UDMASS_USB, ("%s: umass_activate: child " 712 "returned %d\n", USBDEVNAME(sc->sc_dev), rv)); 713 break; 714 } 715 return (rv); 716 } 717 718 Static void 719 umass_disco(struct umass_softc *sc) 720 { 721 int i; 722 723 DPRINTF(UDMASS_GEN, ("umass_disco\n")); 724 725 /* Free the xfers. */ 726 for (i = 0; i < XFER_NR; i++) 727 if (sc->transfer_xfer[i] != NULL) { 728 usbd_free_xfer(sc->transfer_xfer[i]); 729 sc->transfer_xfer[i] = NULL; 730 } 731 732 /* Remove all the pipes. */ 733 for (i = 0 ; i < UMASS_NEP ; i++) { 734 if (sc->sc_pipe[i] != NULL) { 735 usbd_close_pipe(sc->sc_pipe[i]); 736 sc->sc_pipe[i] = NULL; 737 } 738 } 739 } 740 741 /* 742 * Generic functions to handle transfers 743 */ 744 745 Static usbd_status 746 umass_setup_transfer(struct umass_softc *sc, usbd_pipe_handle pipe, 747 void *buffer, int buflen, int flags, 748 usbd_xfer_handle xfer) 749 { 750 usbd_status err; 751 752 if (sc->sc_dying) 753 return (USBD_IOERROR); 754 755 /* Initialiase a USB transfer and then schedule it */ 756 757 usbd_setup_xfer(xfer, pipe, (void *)sc, buffer, buflen, 758 flags | sc->sc_xfer_flags, sc->timeout, sc->sc_methods->wire_state); 759 760 err = usbd_transfer(xfer); 761 DPRINTF(UDMASS_XFER,("%s: start xfer buffer=%p buflen=%d flags=0x%x " 762 "timeout=%d\n", USBDEVNAME(sc->sc_dev), 763 buffer, buflen, flags | sc->sc_xfer_flags, sc->timeout)); 764 if (err && err != USBD_IN_PROGRESS) { 765 DPRINTF(UDMASS_BBB, ("%s: failed to setup transfer, %s\n", 766 USBDEVNAME(sc->sc_dev), usbd_errstr(err))); 767 return (err); 768 } 769 770 return (USBD_NORMAL_COMPLETION); 771 } 772 773 774 Static usbd_status 775 umass_setup_ctrl_transfer(struct umass_softc *sc, usb_device_request_t *req, 776 void *buffer, int buflen, int flags, usbd_xfer_handle xfer) 777 { 778 usbd_status err; 779 780 if (sc->sc_dying) 781 return (USBD_IOERROR); 782 783 /* Initialiase a USB control transfer and then schedule it */ 784 785 usbd_setup_default_xfer(xfer, sc->sc_udev, (void *) sc, sc->timeout, 786 req, buffer, buflen, flags, sc->sc_methods->wire_state); 787 788 err = usbd_transfer(xfer); 789 if (err && err != USBD_IN_PROGRESS) { 790 DPRINTF(UDMASS_BBB, ("%s: failed to setup ctrl transfer, %s\n", 791 USBDEVNAME(sc->sc_dev), usbd_errstr(err))); 792 793 /* do not reset, as this would make us loop */ 794 return (err); 795 } 796 797 return (USBD_NORMAL_COMPLETION); 798 } 799 800 Static void 801 umass_clear_endpoint_stall(struct umass_softc *sc, int endpt, 802 usbd_xfer_handle xfer) 803 { 804 if (sc->sc_dying) 805 return; 806 807 DPRINTF(UDMASS_BBB, ("%s: Clear endpoint 0x%02x stall\n", 808 USBDEVNAME(sc->sc_dev), sc->sc_epaddr[endpt])); 809 810 usbd_clear_endpoint_toggle(sc->sc_pipe[endpt]); 811 812 sc->sc_req.bmRequestType = UT_WRITE_ENDPOINT; 813 sc->sc_req.bRequest = UR_CLEAR_FEATURE; 814 USETW(sc->sc_req.wValue, UF_ENDPOINT_HALT); 815 USETW(sc->sc_req.wIndex, sc->sc_epaddr[endpt]); 816 USETW(sc->sc_req.wLength, 0); 817 umass_setup_ctrl_transfer(sc, &sc->sc_req, NULL, 0, 0, xfer); 818 } 819 820 #if 0 821 Static void 822 umass_reset(struct umass_softc *sc, transfer_cb_f cb, void *priv) 823 { 824 sc->transfer_cb = cb; 825 sc->transfer_priv = priv; 826 827 /* The reset is a forced reset, so no error (yet) */ 828 sc->reset(sc, STATUS_CMD_OK); 829 } 830 #endif 831 832 /* 833 * Bulk protocol specific functions 834 */ 835 836 Static void 837 umass_bbb_reset(struct umass_softc *sc, int status) 838 { 839 KASSERT(sc->sc_wire & UMASS_WPROTO_BBB, 840 ("sc->sc_wire == 0x%02x wrong for umass_bbb_reset\n", 841 sc->sc_wire)); 842 843 if (sc->sc_dying) 844 return; 845 846 /* 847 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class) 848 * 849 * For Reset Recovery the host shall issue in the following order: 850 * a) a Bulk-Only Mass Storage Reset 851 * b) a Clear Feature HALT to the Bulk-In endpoint 852 * c) a Clear Feature HALT to the Bulk-Out endpoint 853 * 854 * This is done in 3 steps, states: 855 * TSTATE_BBB_RESET1 856 * TSTATE_BBB_RESET2 857 * TSTATE_BBB_RESET3 858 * 859 * If the reset doesn't succeed, the device should be port reset. 860 */ 861 862 DPRINTF(UDMASS_BBB, ("%s: Bulk Reset\n", 863 USBDEVNAME(sc->sc_dev))); 864 865 sc->transfer_state = TSTATE_BBB_RESET1; 866 sc->transfer_status = status; 867 868 /* reset is a class specific interface write */ 869 sc->sc_req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 870 sc->sc_req.bRequest = UR_BBB_RESET; 871 USETW(sc->sc_req.wValue, 0); 872 USETW(sc->sc_req.wIndex, sc->sc_ifaceno); 873 USETW(sc->sc_req.wLength, 0); 874 umass_setup_ctrl_transfer(sc, &sc->sc_req, NULL, 0, 0, 875 sc->transfer_xfer[XFER_BBB_RESET1]); 876 } 877 878 Static void 879 umass_bbb_transfer(struct umass_softc *sc, int lun, void *cmd, int cmdlen, 880 void *data, int datalen, int dir, u_int timeout, 881 umass_callback cb, void *priv) 882 { 883 static int dCBWtag = 42; /* unique for CBW of transfer */ 884 885 DPRINTF(UDMASS_BBB,("%s: umass_bbb_transfer cmd=0x%02x\n", 886 USBDEVNAME(sc->sc_dev), *(u_char *)cmd)); 887 888 KASSERT(sc->sc_wire & UMASS_WPROTO_BBB, 889 ("sc->sc_wire == 0x%02x wrong for umass_bbb_transfer\n", 890 sc->sc_wire)); 891 892 /* Be a little generous. */ 893 sc->timeout = timeout + USBD_DEFAULT_TIMEOUT; 894 895 /* 896 * Do a Bulk-Only transfer with cmdlen bytes from cmd, possibly 897 * a data phase of datalen bytes from/to the device and finally a 898 * csw read phase. 899 * If the data direction was inbound a maximum of datalen bytes 900 * is stored in the buffer pointed to by data. 901 * 902 * umass_bbb_transfer initialises the transfer and lets the state 903 * machine in umass_bbb_state handle the completion. It uses the 904 * following states: 905 * TSTATE_BBB_COMMAND 906 * -> TSTATE_BBB_DATA 907 * -> TSTATE_BBB_STATUS 908 * -> TSTATE_BBB_STATUS2 909 * -> TSTATE_BBB_IDLE 910 * 911 * An error in any of those states will invoke 912 * umass_bbb_reset. 913 */ 914 915 /* check the given arguments */ 916 KASSERT(datalen == 0 || data != NULL, 917 ("%s: datalen > 0, but no buffer",USBDEVNAME(sc->sc_dev))); 918 KASSERT(cmdlen <= CBWCDBLENGTH, 919 ("%s: cmdlen exceeds CDB length in CBW (%d > %d)", 920 USBDEVNAME(sc->sc_dev), cmdlen, CBWCDBLENGTH)); 921 KASSERT(dir == DIR_NONE || datalen > 0, 922 ("%s: datalen == 0 while direction is not NONE\n", 923 USBDEVNAME(sc->sc_dev))); 924 KASSERT(datalen == 0 || dir != DIR_NONE, 925 ("%s: direction is NONE while datalen is not zero\n", 926 USBDEVNAME(sc->sc_dev))); 927 KASSERT(sizeof(umass_bbb_cbw_t) == UMASS_BBB_CBW_SIZE, 928 ("%s: CBW struct does not have the right size (%d vs. %d)\n", 929 USBDEVNAME(sc->sc_dev), 930 sizeof(umass_bbb_cbw_t), UMASS_BBB_CBW_SIZE)); 931 KASSERT(sizeof(umass_bbb_csw_t) == UMASS_BBB_CSW_SIZE, 932 ("%s: CSW struct does not have the right size (%d vs. %d)\n", 933 USBDEVNAME(sc->sc_dev), 934 sizeof(umass_bbb_csw_t), UMASS_BBB_CSW_SIZE)); 935 936 /* 937 * Determine the direction of the data transfer and the length. 938 * 939 * dCBWDataTransferLength (datalen) : 940 * This field indicates the number of bytes of data that the host 941 * intends to transfer on the IN or OUT Bulk endpoint(as indicated by 942 * the Direction bit) during the execution of this command. If this 943 * field is set to 0, the device will expect that no data will be 944 * transferred IN or OUT during this command, regardless of the value 945 * of the Direction bit defined in dCBWFlags. 946 * 947 * dCBWFlags (dir) : 948 * The bits of the Flags field are defined as follows: 949 * Bits 0-6 reserved 950 * Bit 7 Direction - this bit shall be ignored if the 951 * dCBWDataTransferLength field is zero. 952 * 0 = data Out from host to device 953 * 1 = data In from device to host 954 */ 955 956 /* Fill in the Command Block Wrapper */ 957 USETDW(sc->cbw.dCBWSignature, CBWSIGNATURE); 958 USETDW(sc->cbw.dCBWTag, dCBWtag); 959 dCBWtag++; /* cannot be done in macro (it will be done 4 times) */ 960 USETDW(sc->cbw.dCBWDataTransferLength, datalen); 961 /* DIR_NONE is treated as DIR_OUT (0x00) */ 962 sc->cbw.bCBWFlags = (dir == DIR_IN? CBWFLAGS_IN:CBWFLAGS_OUT); 963 sc->cbw.bCBWLUN = lun; 964 sc->cbw.bCDBLength = cmdlen; 965 memcpy(sc->cbw.CBWCDB, cmd, cmdlen); 966 967 DIF(UDMASS_BBB, umass_bbb_dump_cbw(sc, &sc->cbw)); 968 969 /* store the details for the data transfer phase */ 970 sc->transfer_dir = dir; 971 sc->transfer_data = data; 972 sc->transfer_datalen = datalen; 973 sc->transfer_actlen = 0; 974 sc->transfer_cb = cb; 975 sc->transfer_priv = priv; 976 sc->transfer_status = STATUS_CMD_OK; 977 978 /* move from idle to the command state */ 979 sc->transfer_state = TSTATE_BBB_COMMAND; 980 981 /* Send the CBW from host to device via bulk-out endpoint. */ 982 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT], 983 &sc->cbw, UMASS_BBB_CBW_SIZE, 0, 984 sc->transfer_xfer[XFER_BBB_CBW])) { 985 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 986 } 987 } 988 989 990 Static void 991 umass_bbb_state(usbd_xfer_handle xfer, usbd_private_handle priv, 992 usbd_status err) 993 { 994 struct umass_softc *sc = (struct umass_softc *) priv; 995 usbd_xfer_handle next_xfer; 996 997 KASSERT(sc->sc_wire & UMASS_WPROTO_BBB, 998 ("sc->sc_wire == 0x%02x wrong for umass_bbb_state\n", 999 sc->sc_wire)); 1000 1001 if (sc->sc_dying) 1002 return; 1003 1004 /* 1005 * State handling for BBB transfers. 1006 * 1007 * The subroutine is rather long. It steps through the states given in 1008 * Annex A of the Bulk-Only specification. 1009 * Each state first does the error handling of the previous transfer 1010 * and then prepares the next transfer. 1011 * Each transfer is done asynchroneously so after the request/transfer 1012 * has been submitted you will find a 'return;'. 1013 */ 1014 1015 DPRINTF(UDMASS_BBB, ("%s: Handling BBB state %d (%s), xfer=%p, %s\n", 1016 USBDEVNAME(sc->sc_dev), sc->transfer_state, 1017 states[sc->transfer_state], xfer, usbd_errstr(err))); 1018 1019 switch (sc->transfer_state) { 1020 1021 /***** Bulk Transfer *****/ 1022 case TSTATE_BBB_COMMAND: 1023 /* Command transport phase, error handling */ 1024 if (err) { 1025 DPRINTF(UDMASS_BBB, ("%s: failed to send CBW\n", 1026 USBDEVNAME(sc->sc_dev))); 1027 /* If the device detects that the CBW is invalid, then 1028 * the device may STALL both bulk endpoints and require 1029 * a Bulk-Reset 1030 */ 1031 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1032 return; 1033 } 1034 1035 /* Data transport phase, setup transfer */ 1036 sc->transfer_state = TSTATE_BBB_DATA; 1037 if (sc->transfer_dir == DIR_IN) { 1038 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN], 1039 sc->data_buffer, sc->transfer_datalen, 1040 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1041 sc->transfer_xfer[XFER_BBB_DATA])) 1042 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1043 1044 return; 1045 } else if (sc->transfer_dir == DIR_OUT) { 1046 memcpy(sc->data_buffer, sc->transfer_data, 1047 sc->transfer_datalen); 1048 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT], 1049 sc->data_buffer, sc->transfer_datalen, 1050 USBD_NO_COPY,/* fixed length transfer */ 1051 sc->transfer_xfer[XFER_BBB_DATA])) 1052 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1053 1054 return; 1055 } else { 1056 DPRINTF(UDMASS_BBB, ("%s: no data phase\n", 1057 USBDEVNAME(sc->sc_dev))); 1058 } 1059 1060 /* FALLTHROUGH if no data phase, err == 0 */ 1061 case TSTATE_BBB_DATA: 1062 /* Command transport phase, error handling (ignored if no data 1063 * phase (fallthrough from previous state)) */ 1064 if (sc->transfer_dir != DIR_NONE) { 1065 /* retrieve the length of the transfer that was done */ 1066 usbd_get_xfer_status(xfer, NULL, NULL, 1067 &sc->transfer_actlen, NULL); 1068 1069 if (err) { 1070 DPRINTF(UDMASS_BBB, ("%s: Data-%s %d failed, " 1071 "%s\n", USBDEVNAME(sc->sc_dev), 1072 (sc->transfer_dir == DIR_IN?"in":"out"), 1073 sc->transfer_datalen,usbd_errstr(err))); 1074 1075 if (err == USBD_STALLED) { 1076 sc->transfer_state = TSTATE_BBB_DCLEAR; 1077 umass_clear_endpoint_stall(sc, 1078 (sc->transfer_dir == DIR_IN? 1079 UMASS_BULKIN:UMASS_BULKOUT), 1080 sc->transfer_xfer[XFER_BBB_DCLEAR]); 1081 return; 1082 } else { 1083 /* Unless the error is a pipe stall the 1084 * error is fatal. 1085 */ 1086 umass_bbb_reset(sc,STATUS_WIRE_FAILED); 1087 return; 1088 } 1089 } 1090 } 1091 1092 /* FALLTHROUGH, err == 0 (no data phase or successful) */ 1093 case TSTATE_BBB_DCLEAR: /* stall clear after data phase */ 1094 if (sc->transfer_dir == DIR_IN) 1095 memcpy(sc->transfer_data, sc->data_buffer, 1096 sc->transfer_actlen); 1097 1098 DIF(UDMASS_BBB, if (sc->transfer_dir == DIR_IN) 1099 umass_dump_buffer(sc, sc->transfer_data, 1100 sc->transfer_datalen, 48)); 1101 1102 /* FALLTHROUGH, err == 0 (no data phase or successful) */ 1103 case TSTATE_BBB_SCLEAR: /* stall clear after status phase */ 1104 /* Reading of CSW after bulk stall condition in data phase 1105 * (TSTATE_BBB_DATA2) or bulk-in stall condition after 1106 * reading CSW (TSTATE_BBB_SCLEAR). 1107 * In the case of no data phase or successful data phase, 1108 * err == 0 and the following if block is passed. 1109 */ 1110 if (err) { /* should not occur */ 1111 /* try the transfer below, even if clear stall failed */ 1112 DPRINTF(UDMASS_BBB, ("%s: bulk-%s stall clear failed" 1113 ", %s\n", USBDEVNAME(sc->sc_dev), 1114 (sc->transfer_dir == DIR_IN? "in":"out"), 1115 usbd_errstr(err))); 1116 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1117 return; 1118 } 1119 1120 /* Status transport phase, setup transfer */ 1121 if (sc->transfer_state == TSTATE_BBB_COMMAND || 1122 sc->transfer_state == TSTATE_BBB_DATA || 1123 sc->transfer_state == TSTATE_BBB_DCLEAR) { 1124 /* After no data phase, successful data phase and 1125 * after clearing bulk-in/-out stall condition 1126 */ 1127 sc->transfer_state = TSTATE_BBB_STATUS1; 1128 next_xfer = sc->transfer_xfer[XFER_BBB_CSW1]; 1129 } else { 1130 /* After first attempt of fetching CSW */ 1131 sc->transfer_state = TSTATE_BBB_STATUS2; 1132 next_xfer = sc->transfer_xfer[XFER_BBB_CSW2]; 1133 } 1134 1135 /* Read the Command Status Wrapper via bulk-in endpoint. */ 1136 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN], 1137 &sc->csw, UMASS_BBB_CSW_SIZE, 0, next_xfer)) { 1138 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1139 return; 1140 } 1141 1142 return; 1143 case TSTATE_BBB_STATUS1: /* first attempt */ 1144 case TSTATE_BBB_STATUS2: /* second attempt */ 1145 /* Status transfer, error handling */ 1146 if (err) { 1147 DPRINTF(UDMASS_BBB, ("%s: Failed to read CSW, %s%s\n", 1148 USBDEVNAME(sc->sc_dev), usbd_errstr(err), 1149 (sc->transfer_state == TSTATE_BBB_STATUS1? 1150 ", retrying":""))); 1151 1152 /* If this was the first attempt at fetching the CSW 1153 * retry it, otherwise fail. 1154 */ 1155 if (sc->transfer_state == TSTATE_BBB_STATUS1) { 1156 sc->transfer_state = TSTATE_BBB_SCLEAR; 1157 umass_clear_endpoint_stall(sc, UMASS_BULKIN, 1158 sc->transfer_xfer[XFER_BBB_SCLEAR]); 1159 return; 1160 } else { 1161 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1162 return; 1163 } 1164 } 1165 1166 DIF(UDMASS_BBB, umass_bbb_dump_csw(sc, &sc->csw)); 1167 1168 /* Translate weird command-status signatures. */ 1169 if ((sc->sc_quirks & UMASS_QUIRK_WRONG_CSWSIG) && 1170 UGETDW(sc->csw.dCSWSignature) == CSWSIGNATURE_OLYMPUS_C1) 1171 USETDW(sc->csw.dCSWSignature, CSWSIGNATURE); 1172 1173 /* Translate invalid command-status tags */ 1174 if (sc->sc_quirks & UMASS_QUIRK_WRONG_CSWTAG) 1175 USETDW(sc->csw.dCSWTag, UGETDW(sc->cbw.dCBWTag)); 1176 1177 /* Check CSW and handle any error */ 1178 if (UGETDW(sc->csw.dCSWSignature) != CSWSIGNATURE) { 1179 /* Invalid CSW: Wrong signature or wrong tag might 1180 * indicate that the device is confused -> reset it. 1181 */ 1182 printf("%s: Invalid CSW: sig 0x%08x should be 0x%08x\n", 1183 USBDEVNAME(sc->sc_dev), 1184 UGETDW(sc->csw.dCSWSignature), 1185 CSWSIGNATURE); 1186 1187 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1188 return; 1189 } else if (UGETDW(sc->csw.dCSWTag) 1190 != UGETDW(sc->cbw.dCBWTag)) { 1191 printf("%s: Invalid CSW: tag %d should be %d\n", 1192 USBDEVNAME(sc->sc_dev), 1193 UGETDW(sc->csw.dCSWTag), 1194 UGETDW(sc->cbw.dCBWTag)); 1195 1196 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1197 return; 1198 1199 /* CSW is valid here */ 1200 } else if (sc->csw.bCSWStatus > CSWSTATUS_PHASE) { 1201 printf("%s: Invalid CSW: status %d > %d\n", 1202 USBDEVNAME(sc->sc_dev), 1203 sc->csw.bCSWStatus, 1204 CSWSTATUS_PHASE); 1205 1206 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1207 return; 1208 } else if (sc->csw.bCSWStatus == CSWSTATUS_PHASE) { 1209 printf("%s: Phase Error, residue = %d\n", 1210 USBDEVNAME(sc->sc_dev), 1211 UGETDW(sc->csw.dCSWDataResidue)); 1212 1213 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1214 return; 1215 1216 } else if (sc->transfer_actlen > sc->transfer_datalen) { 1217 /* Buffer overrun! Don't let this go by unnoticed */ 1218 panic("%s: transferred %d bytes instead of %d bytes", 1219 USBDEVNAME(sc->sc_dev), 1220 sc->transfer_actlen, sc->transfer_datalen); 1221 #if 0 1222 } else if (sc->transfer_datalen - sc->transfer_actlen 1223 != UGETDW(sc->csw.dCSWDataResidue)) { 1224 DPRINTF(UDMASS_BBB, ("%s: actlen=%d != residue=%d\n", 1225 USBDEVNAME(sc->sc_dev), 1226 sc->transfer_datalen - sc->transfer_actlen, 1227 UGETDW(sc->csw.dCSWDataResidue))); 1228 1229 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1230 return; 1231 #endif 1232 } else if (sc->csw.bCSWStatus == CSWSTATUS_FAILED) { 1233 DPRINTF(UDMASS_BBB, ("%s: Command Failed, res = %d\n", 1234 USBDEVNAME(sc->sc_dev), 1235 UGETDW(sc->csw.dCSWDataResidue))); 1236 1237 /* SCSI command failed but transfer was succesful */ 1238 sc->transfer_state = TSTATE_IDLE; 1239 sc->transfer_cb(sc, sc->transfer_priv, 1240 UGETDW(sc->csw.dCSWDataResidue), 1241 STATUS_CMD_FAILED); 1242 1243 return; 1244 1245 } else { /* success */ 1246 sc->transfer_state = TSTATE_IDLE; 1247 sc->transfer_cb(sc, sc->transfer_priv, 1248 UGETDW(sc->csw.dCSWDataResidue), 1249 STATUS_CMD_OK); 1250 1251 return; 1252 } 1253 1254 /***** Bulk Reset *****/ 1255 case TSTATE_BBB_RESET1: 1256 if (err) 1257 printf("%s: BBB reset failed, %s\n", 1258 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1259 1260 sc->transfer_state = TSTATE_BBB_RESET2; 1261 umass_clear_endpoint_stall(sc, UMASS_BULKIN, 1262 sc->transfer_xfer[XFER_BBB_RESET2]); 1263 1264 return; 1265 case TSTATE_BBB_RESET2: 1266 if (err) /* should not occur */ 1267 printf("%s: BBB bulk-in clear stall failed, %s\n", 1268 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1269 /* no error recovery, otherwise we end up in a loop */ 1270 1271 sc->transfer_state = TSTATE_BBB_RESET3; 1272 umass_clear_endpoint_stall(sc, UMASS_BULKOUT, 1273 sc->transfer_xfer[XFER_BBB_RESET3]); 1274 1275 return; 1276 case TSTATE_BBB_RESET3: 1277 if (err) /* should not occur */ 1278 printf("%s: BBB bulk-out clear stall failed, %s\n", 1279 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1280 /* no error recovery, otherwise we end up in a loop */ 1281 1282 sc->transfer_state = TSTATE_IDLE; 1283 if (sc->transfer_priv) { 1284 sc->transfer_cb(sc, sc->transfer_priv, 1285 sc->transfer_datalen, 1286 sc->transfer_status); 1287 } 1288 1289 return; 1290 1291 /***** Default *****/ 1292 default: 1293 panic("%s: Unknown state %d", 1294 USBDEVNAME(sc->sc_dev), sc->transfer_state); 1295 } 1296 } 1297 1298 /* 1299 * Command/Bulk/Interrupt (CBI) specific functions 1300 */ 1301 1302 Static int 1303 umass_cbi_adsc(struct umass_softc *sc, char *buffer, int buflen, 1304 usbd_xfer_handle xfer) 1305 { 1306 KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I), 1307 ("sc->sc_wire == 0x%02x wrong for umass_cbi_adsc\n", 1308 sc->sc_wire)); 1309 1310 sc->sc_req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 1311 sc->sc_req.bRequest = UR_CBI_ADSC; 1312 USETW(sc->sc_req.wValue, 0); 1313 USETW(sc->sc_req.wIndex, sc->sc_ifaceno); 1314 USETW(sc->sc_req.wLength, buflen); 1315 return umass_setup_ctrl_transfer(sc, &sc->sc_req, buffer, 1316 buflen, 0, xfer); 1317 } 1318 1319 1320 Static void 1321 umass_cbi_reset(struct umass_softc *sc, int status) 1322 { 1323 int i; 1324 # define SEND_DIAGNOSTIC_CMDLEN 12 1325 1326 KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I), 1327 ("sc->sc_wire == 0x%02x wrong for umass_cbi_reset\n", 1328 sc->sc_wire)); 1329 1330 if (sc->sc_dying) 1331 return; 1332 1333 /* 1334 * Command Block Reset Protocol 1335 * 1336 * First send a reset request to the device. Then clear 1337 * any possibly stalled bulk endpoints. 1338 1339 * This is done in 3 steps, states: 1340 * TSTATE_CBI_RESET1 1341 * TSTATE_CBI_RESET2 1342 * TSTATE_CBI_RESET3 1343 * 1344 * If the reset doesn't succeed, the device should be port reset. 1345 */ 1346 1347 DPRINTF(UDMASS_CBI, ("%s: CBI Reset\n", 1348 USBDEVNAME(sc->sc_dev))); 1349 1350 KASSERT(sizeof(sc->cbl) >= SEND_DIAGNOSTIC_CMDLEN, 1351 ("%s: CBL struct is too small (%d < %d)\n", 1352 USBDEVNAME(sc->sc_dev), 1353 sizeof(sc->cbl), SEND_DIAGNOSTIC_CMDLEN)); 1354 1355 sc->transfer_state = TSTATE_CBI_RESET1; 1356 sc->transfer_status = status; 1357 1358 /* The 0x1d code is the SEND DIAGNOSTIC command. To distingiush between 1359 * the two the last 10 bytes of the cbl is filled with 0xff (section 1360 * 2.2 of the CBI spec). 1361 */ 1362 sc->cbl[0] = 0x1d; /* Command Block Reset */ 1363 sc->cbl[1] = 0x04; 1364 for (i = 2; i < SEND_DIAGNOSTIC_CMDLEN; i++) 1365 sc->cbl[i] = 0xff; 1366 1367 umass_cbi_adsc(sc, sc->cbl, SEND_DIAGNOSTIC_CMDLEN, 1368 sc->transfer_xfer[XFER_CBI_RESET1]); 1369 /* XXX if the command fails we should reset the port on the bub */ 1370 } 1371 1372 Static void 1373 umass_cbi_transfer(struct umass_softc *sc, int lun, 1374 void *cmd, int cmdlen, void *data, int datalen, int dir, 1375 u_int timeout, umass_callback cb, void *priv) 1376 { 1377 DPRINTF(UDMASS_CBI,("%s: umass_cbi_transfer cmd=0x%02x, len=%d\n", 1378 USBDEVNAME(sc->sc_dev), *(u_char *)cmd, datalen)); 1379 1380 KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I), 1381 ("sc->sc_wire == 0x%02x wrong for umass_cbi_transfer\n", 1382 sc->sc_wire)); 1383 1384 if (sc->sc_dying) 1385 return; 1386 1387 /* Be a little generous. */ 1388 sc->timeout = timeout + USBD_DEFAULT_TIMEOUT; 1389 1390 /* 1391 * Do a CBI transfer with cmdlen bytes from cmd, possibly 1392 * a data phase of datalen bytes from/to the device and finally a 1393 * csw read phase. 1394 * If the data direction was inbound a maximum of datalen bytes 1395 * is stored in the buffer pointed to by data. 1396 * 1397 * umass_cbi_transfer initialises the transfer and lets the state 1398 * machine in umass_cbi_state handle the completion. It uses the 1399 * following states: 1400 * TSTATE_CBI_COMMAND 1401 * -> XXX fill in 1402 * 1403 * An error in any of those states will invoke 1404 * umass_cbi_reset. 1405 */ 1406 1407 /* check the given arguments */ 1408 KASSERT(datalen == 0 || data != NULL, 1409 ("%s: datalen > 0, but no buffer",USBDEVNAME(sc->sc_dev))); 1410 KASSERT(datalen == 0 || dir != DIR_NONE, 1411 ("%s: direction is NONE while datalen is not zero\n", 1412 USBDEVNAME(sc->sc_dev))); 1413 1414 /* store the details for the data transfer phase */ 1415 sc->transfer_dir = dir; 1416 sc->transfer_data = data; 1417 sc->transfer_datalen = datalen; 1418 sc->transfer_actlen = 0; 1419 sc->transfer_cb = cb; 1420 sc->transfer_priv = priv; 1421 sc->transfer_status = STATUS_CMD_OK; 1422 1423 /* move from idle to the command state */ 1424 sc->transfer_state = TSTATE_CBI_COMMAND; 1425 1426 /* Send the Command Block from host to device via control endpoint. */ 1427 if (umass_cbi_adsc(sc, cmd, cmdlen, sc->transfer_xfer[XFER_CBI_CB])) 1428 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1429 } 1430 1431 Static void 1432 umass_cbi_state(usbd_xfer_handle xfer, usbd_private_handle priv, 1433 usbd_status err) 1434 { 1435 struct umass_softc *sc = (struct umass_softc *) priv; 1436 1437 KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I), 1438 ("sc->sc_wire == 0x%02x wrong for umass_cbi_state\n", 1439 sc->sc_wire)); 1440 1441 if (sc->sc_dying) 1442 return; 1443 1444 /* 1445 * State handling for CBI transfers. 1446 */ 1447 1448 DPRINTF(UDMASS_CBI, ("%s: Handling CBI state %d (%s), xfer=%p, %s\n", 1449 USBDEVNAME(sc->sc_dev), sc->transfer_state, 1450 states[sc->transfer_state], xfer, usbd_errstr(err))); 1451 1452 switch (sc->transfer_state) { 1453 1454 /***** CBI Transfer *****/ 1455 case TSTATE_CBI_COMMAND: 1456 if (err == USBD_STALLED) { 1457 DPRINTF(UDMASS_CBI, ("%s: Command Transport failed\n", 1458 USBDEVNAME(sc->sc_dev))); 1459 /* Status transport by control pipe (section 2.3.2.1). 1460 * The command contained in the command block failed. 1461 * 1462 * The control pipe has already been unstalled by the 1463 * USB stack. 1464 * Section 2.4.3.1.1 states that the bulk in endpoints 1465 * should not stalled at this point. 1466 */ 1467 1468 sc->transfer_state = TSTATE_IDLE; 1469 sc->transfer_cb(sc, sc->transfer_priv, 1470 sc->transfer_datalen, 1471 STATUS_CMD_FAILED); 1472 1473 return; 1474 } else if (err) { 1475 DPRINTF(UDMASS_CBI, ("%s: failed to send ADSC\n", 1476 USBDEVNAME(sc->sc_dev))); 1477 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1478 1479 return; 1480 } 1481 1482 sc->transfer_state = TSTATE_CBI_DATA; 1483 if (sc->transfer_dir == DIR_IN) { 1484 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN], 1485 sc->transfer_data, sc->transfer_datalen, 1486 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1487 sc->transfer_xfer[XFER_CBI_DATA])) 1488 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1489 1490 } else if (sc->transfer_dir == DIR_OUT) { 1491 memcpy(sc->data_buffer, sc->transfer_data, 1492 sc->transfer_datalen); 1493 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT], 1494 sc->transfer_data, sc->transfer_datalen, 1495 USBD_NO_COPY,/* fixed length transfer */ 1496 sc->transfer_xfer[XFER_CBI_DATA])) 1497 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1498 1499 } else { 1500 DPRINTF(UDMASS_CBI, ("%s: no data phase\n", 1501 USBDEVNAME(sc->sc_dev))); 1502 goto dostatus; 1503 } 1504 return; 1505 1506 case TSTATE_CBI_DATA: 1507 /* retrieve the length of the transfer that was done */ 1508 usbd_get_xfer_status(xfer,NULL,NULL,&sc->transfer_actlen,NULL); 1509 DPRINTF(UDMASS_CBI, ("%s: CBI_DATA actlen=%d\n", 1510 USBDEVNAME(sc->sc_dev), sc->transfer_actlen)); 1511 1512 if (err) { 1513 DPRINTF(UDMASS_CBI, ("%s: Data-%s %d failed, " 1514 "%s\n", USBDEVNAME(sc->sc_dev), 1515 (sc->transfer_dir == DIR_IN?"in":"out"), 1516 sc->transfer_datalen,usbd_errstr(err))); 1517 1518 if (err == USBD_STALLED) { 1519 sc->transfer_state = TSTATE_CBI_DCLEAR; 1520 umass_clear_endpoint_stall(sc, UMASS_BULKIN, 1521 sc->transfer_xfer[XFER_CBI_DCLEAR]); 1522 } else { 1523 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1524 } 1525 return; 1526 } 1527 1528 if (sc->transfer_dir == DIR_IN) 1529 memcpy(sc->transfer_data, sc->data_buffer, 1530 sc->transfer_actlen); 1531 1532 DIF(UDMASS_CBI, if (sc->transfer_dir == DIR_IN) 1533 umass_dump_buffer(sc, sc->transfer_data, 1534 sc->transfer_actlen, 48)); 1535 1536 dostatus: 1537 if (sc->sc_wire == UMASS_WPROTO_CBI_I) { 1538 sc->transfer_state = TSTATE_CBI_STATUS; 1539 memset(&sc->sbl, 0, sizeof(sc->sbl)); 1540 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_INTRIN], 1541 &sc->sbl, sizeof(sc->sbl), 1542 0, /* fixed length transfer */ 1543 sc->transfer_xfer[XFER_CBI_STATUS])) 1544 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1545 } else { 1546 /* No command completion interrupt. Request 1547 * sense to get status of command. 1548 */ 1549 sc->transfer_state = TSTATE_IDLE; 1550 sc->transfer_cb(sc, sc->transfer_priv, 1551 sc->transfer_datalen - sc->transfer_actlen, 1552 STATUS_CMD_UNKNOWN); 1553 } 1554 return; 1555 1556 case TSTATE_CBI_STATUS: 1557 if (err) { 1558 DPRINTF(UDMASS_CBI, ("%s: Status Transport failed\n", 1559 USBDEVNAME(sc->sc_dev))); 1560 /* Status transport by interrupt pipe (section 2.3.2.2). 1561 */ 1562 1563 if (err == USBD_STALLED) { 1564 sc->transfer_state = TSTATE_CBI_SCLEAR; 1565 umass_clear_endpoint_stall(sc, UMASS_INTRIN, 1566 sc->transfer_xfer[XFER_CBI_SCLEAR]); 1567 } else { 1568 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1569 } 1570 return; 1571 } 1572 1573 /* Dissect the information in the buffer */ 1574 1575 { 1576 u_int32_t actlen; 1577 usbd_get_xfer_status(xfer,NULL,NULL,&actlen,NULL); 1578 DPRINTF(UDMASS_CBI, ("%s: CBI_STATUS actlen=%d\n", 1579 USBDEVNAME(sc->sc_dev), actlen)); 1580 if (actlen != 2) 1581 break; 1582 } 1583 1584 if (sc->sc_cmd == UMASS_CPROTO_UFI) { 1585 int status; 1586 1587 /* Section 3.4.3.1.3 specifies that the UFI command 1588 * protocol returns an ASC and ASCQ in the interrupt 1589 * data block. 1590 */ 1591 1592 DPRINTF(UDMASS_CBI, ("%s: UFI CCI, ASC = 0x%02x, " 1593 "ASCQ = 0x%02x\n", 1594 USBDEVNAME(sc->sc_dev), 1595 sc->sbl.ufi.asc, sc->sbl.ufi.ascq)); 1596 1597 if ((sc->sbl.ufi.asc == 0 && sc->sbl.ufi.ascq == 0) || 1598 sc->sc_sense) 1599 status = STATUS_CMD_OK; 1600 else 1601 status = STATUS_CMD_FAILED; 1602 1603 /* No autosense, command successful */ 1604 sc->transfer_state = TSTATE_IDLE; 1605 sc->transfer_cb(sc, sc->transfer_priv, 1606 sc->transfer_datalen - sc->transfer_actlen, status); 1607 } else { 1608 int status; 1609 1610 /* Command Interrupt Data Block */ 1611 1612 DPRINTF(UDMASS_CBI, ("%s: type=0x%02x, value=0x%02x\n", 1613 USBDEVNAME(sc->sc_dev), 1614 sc->sbl.common.type, sc->sbl.common.value)); 1615 1616 if (sc->sbl.common.type == IDB_TYPE_CCI) { 1617 switch (sc->sbl.common.value & IDB_VALUE_STATUS_MASK) { 1618 case IDB_VALUE_PASS: 1619 status = STATUS_CMD_OK; 1620 break; 1621 case IDB_VALUE_FAIL: 1622 case IDB_VALUE_PERSISTENT: 1623 status = STATUS_CMD_FAILED; 1624 break; 1625 case IDB_VALUE_PHASE: 1626 status = STATUS_WIRE_FAILED; 1627 break; 1628 } 1629 1630 sc->transfer_state = TSTATE_IDLE; 1631 sc->transfer_cb(sc, sc->transfer_priv, 1632 sc->transfer_datalen - sc->transfer_actlen, status); 1633 } 1634 } 1635 return; 1636 1637 case TSTATE_CBI_DCLEAR: 1638 if (err) { /* should not occur */ 1639 printf("%s: CBI bulk-in/out stall clear failed, %s\n", 1640 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1641 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1642 } 1643 1644 sc->transfer_state = TSTATE_IDLE; 1645 sc->transfer_cb(sc, sc->transfer_priv, 1646 sc->transfer_datalen, 1647 STATUS_CMD_FAILED); 1648 return; 1649 1650 case TSTATE_CBI_SCLEAR: 1651 if (err) /* should not occur */ 1652 printf("%s: CBI intr-in stall clear failed, %s\n", 1653 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1654 1655 /* Something really bad is going on. Reset the device */ 1656 umass_cbi_reset(sc, STATUS_CMD_FAILED); 1657 return; 1658 1659 /***** CBI Reset *****/ 1660 case TSTATE_CBI_RESET1: 1661 if (err) 1662 printf("%s: CBI reset failed, %s\n", 1663 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1664 1665 sc->transfer_state = TSTATE_CBI_RESET2; 1666 umass_clear_endpoint_stall(sc, UMASS_BULKIN, 1667 sc->transfer_xfer[XFER_CBI_RESET2]); 1668 1669 return; 1670 case TSTATE_CBI_RESET2: 1671 if (err) /* should not occur */ 1672 printf("%s: CBI bulk-in stall clear failed, %s\n", 1673 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1674 /* no error recovery, otherwise we end up in a loop */ 1675 1676 sc->transfer_state = TSTATE_CBI_RESET3; 1677 umass_clear_endpoint_stall(sc, UMASS_BULKOUT, 1678 sc->transfer_xfer[XFER_CBI_RESET3]); 1679 1680 return; 1681 case TSTATE_CBI_RESET3: 1682 if (err) /* should not occur */ 1683 printf("%s: CBI bulk-out stall clear failed, %s\n", 1684 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1685 /* no error recovery, otherwise we end up in a loop */ 1686 1687 sc->transfer_state = TSTATE_IDLE; 1688 if (sc->transfer_priv) { 1689 sc->transfer_cb(sc, sc->transfer_priv, 1690 sc->transfer_datalen, 1691 sc->transfer_status); 1692 } 1693 1694 return; 1695 1696 1697 /***** Default *****/ 1698 default: 1699 panic("%s: Unknown state %d", 1700 USBDEVNAME(sc->sc_dev), sc->transfer_state); 1701 } 1702 } 1703 1704 usbd_status 1705 umass_bbb_get_max_lun(struct umass_softc *sc, u_int8_t *maxlun) 1706 { 1707 usb_device_request_t req; 1708 usbd_status err; 1709 1710 *maxlun = 0; /* Default to 0. */ 1711 1712 DPRINTF(UDMASS_BBB, ("%s: Get Max Lun\n", USBDEVNAME(sc->sc_dev))); 1713 1714 /* The Get Max Lun command is a class-specific request. */ 1715 req.bmRequestType = UT_READ_CLASS_INTERFACE; 1716 req.bRequest = UR_BBB_GET_MAX_LUN; 1717 USETW(req.wValue, 0); 1718 USETW(req.wIndex, sc->sc_ifaceno); 1719 USETW(req.wLength, 1); 1720 1721 err = usbd_do_request_flags(sc->sc_udev, &req, maxlun, 1722 USBD_SHORT_XFER_OK, 0, USBD_DEFAULT_TIMEOUT); 1723 switch (err) { 1724 case USBD_NORMAL_COMPLETION: 1725 DPRINTF(UDMASS_BBB, ("%s: Max Lun %d\n", 1726 USBDEVNAME(sc->sc_dev), *maxlun)); 1727 break; 1728 1729 case USBD_STALLED: 1730 /* 1731 * Device doesn't support Get Max Lun request. 1732 */ 1733 err = USBD_NORMAL_COMPLETION; 1734 DPRINTF(UDMASS_BBB, ("%s: Get Max Lun not supported\n", 1735 USBDEVNAME(sc->sc_dev))); 1736 break; 1737 1738 case USBD_SHORT_XFER: 1739 /* 1740 * XXX This must mean Get Max Lun is not supported, too! 1741 */ 1742 err = USBD_NORMAL_COMPLETION; 1743 DPRINTF(UDMASS_BBB, ("%s: Get Max Lun SHORT_XFER\n", 1744 USBDEVNAME(sc->sc_dev))); 1745 break; 1746 1747 default: 1748 printf("%s: Get Max Lun failed: %s\n", 1749 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1750 /* XXX Should we port_reset the device? */ 1751 break; 1752 } 1753 1754 return (err); 1755 } 1756 1757 1758 1759 1760 #ifdef UMASS_DEBUG 1761 Static void 1762 umass_bbb_dump_cbw(struct umass_softc *sc, umass_bbb_cbw_t *cbw) 1763 { 1764 int clen = cbw->bCDBLength; 1765 int dlen = UGETDW(cbw->dCBWDataTransferLength); 1766 u_int8_t *c = cbw->CBWCDB; 1767 int tag = UGETDW(cbw->dCBWTag); 1768 int flags = cbw->bCBWFlags; 1769 1770 DPRINTF(UDMASS_BBB, ("%s: CBW %d: cmdlen=%d " 1771 "(0x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%s), " 1772 "data = %d bytes, dir = %s\n", 1773 USBDEVNAME(sc->sc_dev), tag, clen, 1774 c[0], c[1], c[2], c[3], c[4], c[5], 1775 c[6], c[7], c[8], c[9], 1776 (clen > 10? "...":""), 1777 dlen, (flags == CBWFLAGS_IN? "in": 1778 (flags == CBWFLAGS_OUT? "out":"<invalid>")))); 1779 } 1780 1781 Static void 1782 umass_bbb_dump_csw(struct umass_softc *sc, umass_bbb_csw_t *csw) 1783 { 1784 int sig = UGETDW(csw->dCSWSignature); 1785 int tag = UGETW(csw->dCSWTag); 1786 int res = UGETDW(csw->dCSWDataResidue); 1787 int status = csw->bCSWStatus; 1788 1789 DPRINTF(UDMASS_BBB, ("%s: CSW %d: sig = 0x%08x (%s), tag = %d, " 1790 "res = %d, status = 0x%02x (%s)\n", USBDEVNAME(sc->sc_dev), 1791 tag, sig, (sig == CSWSIGNATURE? "valid":"invalid"), 1792 tag, res, 1793 status, (status == CSWSTATUS_GOOD? "good": 1794 (status == CSWSTATUS_FAILED? "failed": 1795 (status == CSWSTATUS_PHASE? "phase":"<invalid>"))))); 1796 } 1797 1798 Static void 1799 umass_dump_buffer(struct umass_softc *sc, u_int8_t *buffer, int buflen, 1800 int printlen) 1801 { 1802 int i, j; 1803 char s1[40]; 1804 char s2[40]; 1805 char s3[5]; 1806 1807 s1[0] = '\0'; 1808 s3[0] = '\0'; 1809 1810 sprintf(s2, " buffer=%p, buflen=%d", buffer, buflen); 1811 for (i = 0; i < buflen && i < printlen; i++) { 1812 j = i % 16; 1813 if (j == 0 && i != 0) { 1814 DPRINTF(UDMASS_GEN, ("%s: 0x %s%s\n", 1815 USBDEVNAME(sc->sc_dev), s1, s2)); 1816 s2[0] = '\0'; 1817 } 1818 sprintf(&s1[j*2], "%02x", buffer[i] & 0xff); 1819 } 1820 if (buflen > printlen) 1821 sprintf(s3, " ..."); 1822 DPRINTF(UDMASS_GEN, ("%s: 0x %s%s%s\n", 1823 USBDEVNAME(sc->sc_dev), s1, s2, s3)); 1824 } 1825 #endif 1826
Indexes created Tue Sep 30 11:09:46 GMT 2025