umass.c revision 1.115
1 /* $NetBSD: umass.c,v 1.115 2004/06/26 02:17:00 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. 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 * 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/devclass_docs/usb_msc_overview_1.2.pdf 71 * http://www.usb.org/developers/devclass_docs/usbmassbulk_10.pdf 72 * http://www.usb.org/developers/devclass_docs/usb_msc_cbi_1.1.pdf 73 * http://www.usb.org/developers/devclass_docs/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 1.115 2004/06/26 02:17:00 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, sizeof(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 if (quirk != NULL && quirk->uq_init != NULL) { 427 err = (*quirk->uq_init)(sc); 428 if (err) { 429 printf("%s: quirk init failed\n", 430 USBDEVNAME(sc->sc_dev)); 431 umass_disco(sc); 432 USB_ATTACH_ERROR_RETURN; 433 } 434 } 435 436 /* 437 * In addition to the Control endpoint the following endpoints 438 * are required: 439 * a) bulk-in endpoint. 440 * b) bulk-out endpoint. 441 * and for Control/Bulk/Interrupt with CCI (CBI_I) 442 * c) intr-in 443 * 444 * The endpoint addresses are not fixed, so we have to read them 445 * from the device descriptors of the current interface. 446 */ 447 for (i = 0 ; i < id->bNumEndpoints ; i++) { 448 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 449 if (ed == NULL) { 450 printf("%s: could not read endpoint descriptor\n", 451 USBDEVNAME(sc->sc_dev)); 452 USB_ATTACH_ERROR_RETURN; 453 } 454 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN 455 && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 456 sc->sc_epaddr[UMASS_BULKIN] = ed->bEndpointAddress; 457 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT 458 && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { 459 sc->sc_epaddr[UMASS_BULKOUT] = ed->bEndpointAddress; 460 } else if (sc->sc_wire == UMASS_WPROTO_CBI_I 461 && UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN 462 && (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 463 sc->sc_epaddr[UMASS_INTRIN] = ed->bEndpointAddress; 464 #ifdef UMASS_DEBUG 465 if (UGETW(ed->wMaxPacketSize) > 2) { 466 DPRINTF(UDMASS_CBI, ("%s: intr size is %d\n", 467 USBDEVNAME(sc->sc_dev), 468 UGETW(ed->wMaxPacketSize))); 469 } 470 #endif 471 } 472 } 473 474 /* check whether we found all the endpoints we need */ 475 if (!sc->sc_epaddr[UMASS_BULKIN] || !sc->sc_epaddr[UMASS_BULKOUT] || 476 (sc->sc_wire == UMASS_WPROTO_CBI_I && 477 !sc->sc_epaddr[UMASS_INTRIN])) { 478 printf("%s: endpoint not found %u/%u/%u\n", 479 USBDEVNAME(sc->sc_dev), sc->sc_epaddr[UMASS_BULKIN], 480 sc->sc_epaddr[UMASS_BULKOUT], 481 sc->sc_epaddr[UMASS_INTRIN]); 482 USB_ATTACH_ERROR_RETURN; 483 } 484 485 /* 486 * Get the maximum LUN supported by the device. 487 */ 488 if (sc->sc_wire == UMASS_WPROTO_BBB) { 489 err = umass_bbb_get_max_lun(sc, &sc->maxlun); 490 if (err) { 491 printf("%s: unable to get Max Lun: %s\n", 492 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 493 USB_ATTACH_ERROR_RETURN; 494 } 495 if (sc->maxlun > 0) 496 sc->sc_busquirks |= PQUIRK_FORCELUNS; 497 } else { 498 sc->maxlun = 0; 499 } 500 501 /* Open the bulk-in and -out pipe */ 502 DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for BULKOUT\n", 503 USBDEVNAME(sc->sc_dev), sc->sc_iface, 504 sc->sc_epaddr[UMASS_BULKOUT])); 505 err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_BULKOUT], 506 USBD_EXCLUSIVE_USE, 507 &sc->sc_pipe[UMASS_BULKOUT]); 508 if (err) { 509 printf("%s: cannot open %u-out pipe (bulk)\n", 510 USBDEVNAME(sc->sc_dev), sc->sc_epaddr[UMASS_BULKOUT]); 511 umass_disco(sc); 512 USB_ATTACH_ERROR_RETURN; 513 } 514 DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for BULKIN\n", 515 USBDEVNAME(sc->sc_dev), sc->sc_iface, 516 sc->sc_epaddr[UMASS_BULKIN])); 517 err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_BULKIN], 518 USBD_EXCLUSIVE_USE, &sc->sc_pipe[UMASS_BULKIN]); 519 if (err) { 520 printf("%s: could not open %u-in pipe (bulk)\n", 521 USBDEVNAME(sc->sc_dev), sc->sc_epaddr[UMASS_BULKIN]); 522 umass_disco(sc); 523 USB_ATTACH_ERROR_RETURN; 524 } 525 /* 526 * Open the intr-in pipe if the protocol is CBI with CCI. 527 * Note: early versions of the Zip drive do have an interrupt pipe, but 528 * this pipe is unused 529 * 530 * We do not open the interrupt pipe as an interrupt pipe, but as a 531 * normal bulk endpoint. We send an IN transfer down the wire at the 532 * appropriate time, because we know exactly when to expect data on 533 * that endpoint. This saves bandwidth, but more important, makes the 534 * code for handling the data on that endpoint simpler. No data 535 * arriving concurrently. 536 */ 537 if (sc->sc_wire == UMASS_WPROTO_CBI_I) { 538 DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for INTRIN\n", 539 USBDEVNAME(sc->sc_dev), sc->sc_iface, 540 sc->sc_epaddr[UMASS_INTRIN])); 541 err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_INTRIN], 542 USBD_EXCLUSIVE_USE, &sc->sc_pipe[UMASS_INTRIN]); 543 if (err) { 544 printf("%s: couldn't open %u-in (intr)\n", 545 USBDEVNAME(sc->sc_dev), 546 sc->sc_epaddr[UMASS_INTRIN]); 547 umass_disco(sc); 548 USB_ATTACH_ERROR_RETURN; 549 } 550 } 551 552 /* initialisation of generic part */ 553 sc->transfer_state = TSTATE_IDLE; 554 555 /* request a sufficient number of xfer handles */ 556 for (i = 0; i < XFER_NR; i++) { 557 sc->transfer_xfer[i] = usbd_alloc_xfer(uaa->device); 558 if (sc->transfer_xfer[i] == NULL) { 559 printf("%s: Out of memory\n", 560 USBDEVNAME(sc->sc_dev)); 561 umass_disco(sc); 562 USB_ATTACH_ERROR_RETURN; 563 } 564 } 565 /* Allocate buffer for data transfer (it's huge). */ 566 switch (sc->sc_wire) { 567 case UMASS_WPROTO_BBB: 568 bno = XFER_BBB_DATA; 569 goto dalloc; 570 case UMASS_WPROTO_CBI: 571 bno = XFER_CBI_DATA; 572 goto dalloc; 573 case UMASS_WPROTO_CBI_I: 574 bno = XFER_CBI_DATA; 575 dalloc: 576 sc->data_buffer = usbd_alloc_buffer(sc->transfer_xfer[bno], 577 UMASS_MAX_TRANSFER_SIZE); 578 if (sc->data_buffer == NULL) { 579 printf("%s: no buffer memory\n", 580 USBDEVNAME(sc->sc_dev)); 581 umass_disco(sc); 582 USB_ATTACH_ERROR_RETURN; 583 } 584 break; 585 default: 586 break; 587 } 588 589 /* Initialise the wire protocol specific methods */ 590 switch (sc->sc_wire) { 591 case UMASS_WPROTO_BBB: 592 sc->sc_methods = &umass_bbb_methods; 593 break; 594 case UMASS_WPROTO_CBI: 595 case UMASS_WPROTO_CBI_I: 596 sc->sc_methods = &umass_cbi_methods; 597 break; 598 default: 599 umass_disco(sc); 600 USB_ATTACH_ERROR_RETURN; 601 } 602 603 error = 0; 604 switch (sc->sc_cmd) { 605 case UMASS_CPROTO_RBC: 606 case UMASS_CPROTO_SCSI: 607 #if NSCSIBUS > 0 608 error = umass_scsi_attach(sc); 609 #else 610 printf("%s: scsibus not configured\n", USBDEVNAME(sc->sc_dev)); 611 #endif 612 break; 613 614 case UMASS_CPROTO_UFI: 615 case UMASS_CPROTO_ATAPI: 616 #if NATAPIBUS > 0 617 error = umass_atapi_attach(sc); 618 #else 619 printf("%s: atapibus not configured\n", 620 USBDEVNAME(sc->sc_dev)); 621 #endif 622 break; 623 624 case UMASS_CPROTO_ISD_ATA: 625 #if NWD > 0 626 error = umass_isdata_attach(sc); 627 #else 628 printf("%s: isdata not configured\n", USBDEVNAME(sc->sc_dev)); 629 #endif 630 break; 631 632 default: 633 printf("%s: command protocol=0x%x not supported\n", 634 USBDEVNAME(sc->sc_dev), sc->sc_cmd); 635 umass_disco(sc); 636 USB_ATTACH_ERROR_RETURN; 637 } 638 if (error) { 639 printf("%s: bus attach failed\n", USBDEVNAME(sc->sc_dev)); 640 umass_disco(sc); 641 USB_ATTACH_ERROR_RETURN; 642 } 643 644 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 645 USBDEV(sc->sc_dev)); 646 647 DPRINTF(UDMASS_GEN, ("%s: Attach finished\n", USBDEVNAME(sc->sc_dev))); 648 649 USB_ATTACH_SUCCESS_RETURN; 650 } 651 652 USB_DETACH(umass) 653 { 654 USB_DETACH_START(umass, sc); 655 struct umassbus_softc *scbus; 656 int rv = 0, i, s; 657 658 DPRINTF(UDMASS_USB, ("%s: detached\n", USBDEVNAME(sc->sc_dev))); 659 660 /* Abort the pipes to wake up any waiting processes. */ 661 for (i = 0 ; i < UMASS_NEP ; i++) { 662 if (sc->sc_pipe[i] != NULL) { 663 usbd_abort_pipe(sc->sc_pipe[i]); 664 sc->sc_pipe[i] = NULL; 665 } 666 } 667 668 /* Do we really need reference counting? Perhaps in ioctl() */ 669 s = splusb(); 670 if (--sc->sc_refcnt >= 0) { 671 #ifdef DIAGNOSTIC 672 printf("%s: waiting for refcnt\n", USBDEVNAME(sc->sc_dev)); 673 #endif 674 /* Wait for processes to go away. */ 675 usb_detach_wait(USBDEV(sc->sc_dev)); 676 } 677 splx(s); 678 679 scbus = sc->bus; 680 if (scbus != NULL) { 681 if (scbus->sc_child != NULL) 682 rv = config_detach(scbus->sc_child, flags); 683 free(scbus, M_DEVBUF); 684 sc->bus = NULL; 685 } 686 687 if (rv != 0) 688 return (rv); 689 690 umass_disco(sc); 691 692 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 693 USBDEV(sc->sc_dev)); 694 695 return (rv); 696 } 697 698 int 699 umass_activate(struct device *dev, enum devact act) 700 { 701 struct umass_softc *sc = (struct umass_softc *)dev; 702 struct umassbus_softc *scbus = sc->bus; 703 int rv = 0; 704 705 DPRINTF(UDMASS_USB, ("%s: umass_activate: %d\n", 706 USBDEVNAME(sc->sc_dev), act)); 707 708 switch (act) { 709 case DVACT_ACTIVATE: 710 rv = EOPNOTSUPP; 711 break; 712 713 case DVACT_DEACTIVATE: 714 sc->sc_dying = 1; 715 if (scbus == NULL || scbus->sc_child == NULL) 716 break; 717 rv = config_deactivate(scbus->sc_child); 718 DPRINTF(UDMASS_USB, ("%s: umass_activate: child " 719 "returned %d\n", USBDEVNAME(sc->sc_dev), rv)); 720 break; 721 } 722 return (rv); 723 } 724 725 Static void 726 umass_disco(struct umass_softc *sc) 727 { 728 int i; 729 730 DPRINTF(UDMASS_GEN, ("umass_disco\n")); 731 732 /* Free the xfers. */ 733 for (i = 0; i < XFER_NR; i++) 734 if (sc->transfer_xfer[i] != NULL) { 735 usbd_free_xfer(sc->transfer_xfer[i]); 736 sc->transfer_xfer[i] = NULL; 737 } 738 739 /* Remove all the pipes. */ 740 for (i = 0 ; i < UMASS_NEP ; i++) { 741 if (sc->sc_pipe[i] != NULL) { 742 usbd_close_pipe(sc->sc_pipe[i]); 743 sc->sc_pipe[i] = NULL; 744 } 745 } 746 } 747 748 /* 749 * Generic functions to handle transfers 750 */ 751 752 Static usbd_status 753 umass_setup_transfer(struct umass_softc *sc, usbd_pipe_handle pipe, 754 void *buffer, int buflen, int flags, 755 usbd_xfer_handle xfer) 756 { 757 usbd_status err; 758 759 if (sc->sc_dying) 760 return (USBD_IOERROR); 761 762 /* Initialiase a USB transfer and then schedule it */ 763 764 usbd_setup_xfer(xfer, pipe, (void *)sc, buffer, buflen, 765 flags | sc->sc_xfer_flags, sc->timeout, sc->sc_methods->wire_state); 766 767 err = usbd_transfer(xfer); 768 DPRINTF(UDMASS_XFER,("%s: start xfer buffer=%p buflen=%d flags=0x%x " 769 "timeout=%d\n", USBDEVNAME(sc->sc_dev), 770 buffer, buflen, flags | sc->sc_xfer_flags, sc->timeout)); 771 if (err && err != USBD_IN_PROGRESS) { 772 DPRINTF(UDMASS_BBB, ("%s: failed to setup transfer, %s\n", 773 USBDEVNAME(sc->sc_dev), usbd_errstr(err))); 774 return (err); 775 } 776 777 return (USBD_NORMAL_COMPLETION); 778 } 779 780 781 Static usbd_status 782 umass_setup_ctrl_transfer(struct umass_softc *sc, usb_device_request_t *req, 783 void *buffer, int buflen, int flags, usbd_xfer_handle xfer) 784 { 785 usbd_status err; 786 787 if (sc->sc_dying) 788 return (USBD_IOERROR); 789 790 /* Initialiase a USB control transfer and then schedule it */ 791 792 usbd_setup_default_xfer(xfer, sc->sc_udev, (void *) sc, sc->timeout, 793 req, buffer, buflen, flags, sc->sc_methods->wire_state); 794 795 err = usbd_transfer(xfer); 796 if (err && err != USBD_IN_PROGRESS) { 797 DPRINTF(UDMASS_BBB, ("%s: failed to setup ctrl transfer, %s\n", 798 USBDEVNAME(sc->sc_dev), usbd_errstr(err))); 799 800 /* do not reset, as this would make us loop */ 801 return (err); 802 } 803 804 return (USBD_NORMAL_COMPLETION); 805 } 806 807 Static void 808 umass_clear_endpoint_stall(struct umass_softc *sc, int endpt, 809 usbd_xfer_handle xfer) 810 { 811 if (sc->sc_dying) 812 return; 813 814 DPRINTF(UDMASS_BBB, ("%s: Clear endpoint 0x%02x stall\n", 815 USBDEVNAME(sc->sc_dev), sc->sc_epaddr[endpt])); 816 817 usbd_clear_endpoint_toggle(sc->sc_pipe[endpt]); 818 819 sc->sc_req.bmRequestType = UT_WRITE_ENDPOINT; 820 sc->sc_req.bRequest = UR_CLEAR_FEATURE; 821 USETW(sc->sc_req.wValue, UF_ENDPOINT_HALT); 822 USETW(sc->sc_req.wIndex, sc->sc_epaddr[endpt]); 823 USETW(sc->sc_req.wLength, 0); 824 umass_setup_ctrl_transfer(sc, &sc->sc_req, NULL, 0, 0, xfer); 825 } 826 827 #if 0 828 Static void 829 umass_reset(struct umass_softc *sc, transfer_cb_f cb, void *priv) 830 { 831 sc->transfer_cb = cb; 832 sc->transfer_priv = priv; 833 834 /* The reset is a forced reset, so no error (yet) */ 835 sc->reset(sc, STATUS_CMD_OK); 836 } 837 #endif 838 839 /* 840 * Bulk protocol specific functions 841 */ 842 843 Static void 844 umass_bbb_reset(struct umass_softc *sc, int status) 845 { 846 KASSERT(sc->sc_wire & UMASS_WPROTO_BBB, 847 ("sc->sc_wire == 0x%02x wrong for umass_bbb_reset\n", 848 sc->sc_wire)); 849 850 if (sc->sc_dying) 851 return; 852 853 /* 854 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class) 855 * 856 * For Reset Recovery the host shall issue in the following order: 857 * a) a Bulk-Only Mass Storage Reset 858 * b) a Clear Feature HALT to the Bulk-In endpoint 859 * c) a Clear Feature HALT to the Bulk-Out endpoint 860 * 861 * This is done in 3 steps, states: 862 * TSTATE_BBB_RESET1 863 * TSTATE_BBB_RESET2 864 * TSTATE_BBB_RESET3 865 * 866 * If the reset doesn't succeed, the device should be port reset. 867 */ 868 869 DPRINTF(UDMASS_BBB, ("%s: Bulk Reset\n", 870 USBDEVNAME(sc->sc_dev))); 871 872 sc->transfer_state = TSTATE_BBB_RESET1; 873 sc->transfer_status = status; 874 875 /* reset is a class specific interface write */ 876 sc->sc_req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 877 sc->sc_req.bRequest = UR_BBB_RESET; 878 USETW(sc->sc_req.wValue, 0); 879 USETW(sc->sc_req.wIndex, sc->sc_ifaceno); 880 USETW(sc->sc_req.wLength, 0); 881 umass_setup_ctrl_transfer(sc, &sc->sc_req, NULL, 0, 0, 882 sc->transfer_xfer[XFER_BBB_RESET1]); 883 } 884 885 Static void 886 umass_bbb_transfer(struct umass_softc *sc, int lun, void *cmd, int cmdlen, 887 void *data, int datalen, int dir, u_int timeout, 888 umass_callback cb, void *priv) 889 { 890 static int dCBWtag = 42; /* unique for CBW of transfer */ 891 892 DPRINTF(UDMASS_BBB,("%s: umass_bbb_transfer cmd=0x%02x\n", 893 USBDEVNAME(sc->sc_dev), *(u_char *)cmd)); 894 895 KASSERT(sc->sc_wire & UMASS_WPROTO_BBB, 896 ("sc->sc_wire == 0x%02x wrong for umass_bbb_transfer\n", 897 sc->sc_wire)); 898 899 /* Be a little generous. */ 900 sc->timeout = timeout + USBD_DEFAULT_TIMEOUT; 901 902 /* 903 * Do a Bulk-Only transfer with cmdlen bytes from cmd, possibly 904 * a data phase of datalen bytes from/to the device and finally a 905 * csw read phase. 906 * If the data direction was inbound a maximum of datalen bytes 907 * is stored in the buffer pointed to by data. 908 * 909 * umass_bbb_transfer initialises the transfer and lets the state 910 * machine in umass_bbb_state handle the completion. It uses the 911 * following states: 912 * TSTATE_BBB_COMMAND 913 * -> TSTATE_BBB_DATA 914 * -> TSTATE_BBB_STATUS 915 * -> TSTATE_BBB_STATUS2 916 * -> TSTATE_BBB_IDLE 917 * 918 * An error in any of those states will invoke 919 * umass_bbb_reset. 920 */ 921 922 /* check the given arguments */ 923 KASSERT(datalen == 0 || data != NULL, 924 ("%s: datalen > 0, but no buffer",USBDEVNAME(sc->sc_dev))); 925 KASSERT(cmdlen <= CBWCDBLENGTH, 926 ("%s: cmdlen exceeds CDB length in CBW (%d > %d)", 927 USBDEVNAME(sc->sc_dev), cmdlen, CBWCDBLENGTH)); 928 KASSERT(dir == DIR_NONE || datalen > 0, 929 ("%s: datalen == 0 while direction is not NONE\n", 930 USBDEVNAME(sc->sc_dev))); 931 KASSERT(datalen == 0 || dir != DIR_NONE, 932 ("%s: direction is NONE while datalen is not zero\n", 933 USBDEVNAME(sc->sc_dev))); 934 KASSERT(sizeof(umass_bbb_cbw_t) == UMASS_BBB_CBW_SIZE, 935 ("%s: CBW struct does not have the right size (%d vs. %d)\n", 936 USBDEVNAME(sc->sc_dev), 937 sizeof(umass_bbb_cbw_t), UMASS_BBB_CBW_SIZE)); 938 KASSERT(sizeof(umass_bbb_csw_t) == UMASS_BBB_CSW_SIZE, 939 ("%s: CSW struct does not have the right size (%d vs. %d)\n", 940 USBDEVNAME(sc->sc_dev), 941 sizeof(umass_bbb_csw_t), UMASS_BBB_CSW_SIZE)); 942 943 /* 944 * Determine the direction of the data transfer and the length. 945 * 946 * dCBWDataTransferLength (datalen) : 947 * This field indicates the number of bytes of data that the host 948 * intends to transfer on the IN or OUT Bulk endpoint(as indicated by 949 * the Direction bit) during the execution of this command. If this 950 * field is set to 0, the device will expect that no data will be 951 * transferred IN or OUT during this command, regardless of the value 952 * of the Direction bit defined in dCBWFlags. 953 * 954 * dCBWFlags (dir) : 955 * The bits of the Flags field are defined as follows: 956 * Bits 0-6 reserved 957 * Bit 7 Direction - this bit shall be ignored if the 958 * dCBWDataTransferLength field is zero. 959 * 0 = data Out from host to device 960 * 1 = data In from device to host 961 */ 962 963 /* Fill in the Command Block Wrapper */ 964 USETDW(sc->cbw.dCBWSignature, CBWSIGNATURE); 965 USETDW(sc->cbw.dCBWTag, dCBWtag); 966 dCBWtag++; /* cannot be done in macro (it will be done 4 times) */ 967 USETDW(sc->cbw.dCBWDataTransferLength, datalen); 968 /* DIR_NONE is treated as DIR_OUT (0x00) */ 969 sc->cbw.bCBWFlags = (dir == DIR_IN? CBWFLAGS_IN:CBWFLAGS_OUT); 970 sc->cbw.bCBWLUN = lun; 971 sc->cbw.bCDBLength = cmdlen; 972 memcpy(sc->cbw.CBWCDB, cmd, cmdlen); 973 974 DIF(UDMASS_BBB, umass_bbb_dump_cbw(sc, &sc->cbw)); 975 976 /* store the details for the data transfer phase */ 977 sc->transfer_dir = dir; 978 sc->transfer_data = data; 979 sc->transfer_datalen = datalen; 980 sc->transfer_actlen = 0; 981 sc->transfer_cb = cb; 982 sc->transfer_priv = priv; 983 sc->transfer_status = STATUS_CMD_OK; 984 985 /* move from idle to the command state */ 986 sc->transfer_state = TSTATE_BBB_COMMAND; 987 988 /* Send the CBW from host to device via bulk-out endpoint. */ 989 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT], 990 &sc->cbw, UMASS_BBB_CBW_SIZE, 0, 991 sc->transfer_xfer[XFER_BBB_CBW])) { 992 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 993 } 994 } 995 996 997 Static void 998 umass_bbb_state(usbd_xfer_handle xfer, usbd_private_handle priv, 999 usbd_status err) 1000 { 1001 struct umass_softc *sc = (struct umass_softc *) priv; 1002 usbd_xfer_handle next_xfer; 1003 1004 KASSERT(sc->sc_wire & UMASS_WPROTO_BBB, 1005 ("sc->sc_wire == 0x%02x wrong for umass_bbb_state\n", 1006 sc->sc_wire)); 1007 1008 if (sc->sc_dying) 1009 return; 1010 1011 /* 1012 * State handling for BBB transfers. 1013 * 1014 * The subroutine is rather long. It steps through the states given in 1015 * Annex A of the Bulk-Only specification. 1016 * Each state first does the error handling of the previous transfer 1017 * and then prepares the next transfer. 1018 * Each transfer is done asynchroneously so after the request/transfer 1019 * has been submitted you will find a 'return;'. 1020 */ 1021 1022 DPRINTF(UDMASS_BBB, ("%s: Handling BBB state %d (%s), xfer=%p, %s\n", 1023 USBDEVNAME(sc->sc_dev), sc->transfer_state, 1024 states[sc->transfer_state], xfer, usbd_errstr(err))); 1025 1026 switch (sc->transfer_state) { 1027 1028 /***** Bulk Transfer *****/ 1029 case TSTATE_BBB_COMMAND: 1030 /* Command transport phase, error handling */ 1031 if (err) { 1032 DPRINTF(UDMASS_BBB, ("%s: failed to send CBW\n", 1033 USBDEVNAME(sc->sc_dev))); 1034 /* If the device detects that the CBW is invalid, then 1035 * the device may STALL both bulk endpoints and require 1036 * a Bulk-Reset 1037 */ 1038 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1039 return; 1040 } 1041 1042 /* Data transport phase, setup transfer */ 1043 sc->transfer_state = TSTATE_BBB_DATA; 1044 if (sc->transfer_dir == DIR_IN) { 1045 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN], 1046 sc->data_buffer, sc->transfer_datalen, 1047 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1048 sc->transfer_xfer[XFER_BBB_DATA])) 1049 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1050 1051 return; 1052 } else if (sc->transfer_dir == DIR_OUT) { 1053 memcpy(sc->data_buffer, sc->transfer_data, 1054 sc->transfer_datalen); 1055 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT], 1056 sc->data_buffer, sc->transfer_datalen, 1057 USBD_NO_COPY,/* fixed length transfer */ 1058 sc->transfer_xfer[XFER_BBB_DATA])) 1059 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1060 1061 return; 1062 } else { 1063 DPRINTF(UDMASS_BBB, ("%s: no data phase\n", 1064 USBDEVNAME(sc->sc_dev))); 1065 } 1066 1067 /* FALLTHROUGH if no data phase, err == 0 */ 1068 case TSTATE_BBB_DATA: 1069 /* Command transport phase error handling (ignored if no data 1070 * phase (fallthrough from previous state)) */ 1071 if (sc->transfer_dir != DIR_NONE) { 1072 /* retrieve the length of the transfer that was done */ 1073 usbd_get_xfer_status(xfer, NULL, NULL, 1074 &sc->transfer_actlen, NULL); 1075 DPRINTF(UDMASS_BBB, ("%s: BBB_DATA actlen=%d\n", 1076 USBDEVNAME(sc->sc_dev), sc->transfer_actlen)); 1077 1078 if (err) { 1079 DPRINTF(UDMASS_BBB, ("%s: Data-%s %d failed, " 1080 "%s\n", USBDEVNAME(sc->sc_dev), 1081 (sc->transfer_dir == DIR_IN?"in":"out"), 1082 sc->transfer_datalen,usbd_errstr(err))); 1083 1084 if (err == USBD_STALLED) { 1085 sc->transfer_state = TSTATE_BBB_DCLEAR; 1086 umass_clear_endpoint_stall(sc, 1087 (sc->transfer_dir == DIR_IN? 1088 UMASS_BULKIN:UMASS_BULKOUT), 1089 sc->transfer_xfer[XFER_BBB_DCLEAR]); 1090 } else { 1091 /* Unless the error is a pipe stall the 1092 * error is fatal. 1093 */ 1094 umass_bbb_reset(sc,STATUS_WIRE_FAILED); 1095 } 1096 return; 1097 } 1098 } 1099 1100 /* FALLTHROUGH, err == 0 (no data phase or successful) */ 1101 case TSTATE_BBB_DCLEAR: /* stall clear after data phase */ 1102 if (sc->transfer_dir == DIR_IN) 1103 memcpy(sc->transfer_data, sc->data_buffer, 1104 sc->transfer_actlen); 1105 1106 DIF(UDMASS_BBB, if (sc->transfer_dir == DIR_IN) 1107 umass_dump_buffer(sc, sc->transfer_data, 1108 sc->transfer_datalen, 48)); 1109 1110 /* FALLTHROUGH, err == 0 (no data phase or successful) */ 1111 case TSTATE_BBB_SCLEAR: /* stall clear after status phase */ 1112 /* Reading of CSW after bulk stall condition in data phase 1113 * (TSTATE_BBB_DATA2) or bulk-in stall condition after 1114 * reading CSW (TSTATE_BBB_SCLEAR). 1115 * In the case of no data phase or successful data phase, 1116 * err == 0 and the following if block is passed. 1117 */ 1118 if (err) { /* should not occur */ 1119 printf("%s: BBB bulk-%s stall clear failed, %s\n", 1120 USBDEVNAME(sc->sc_dev), 1121 (sc->transfer_dir == DIR_IN? "in":"out"), 1122 usbd_errstr(err)); 1123 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1124 return; 1125 } 1126 1127 /* Status transport phase, setup transfer */ 1128 if (sc->transfer_state == TSTATE_BBB_COMMAND || 1129 sc->transfer_state == TSTATE_BBB_DATA || 1130 sc->transfer_state == TSTATE_BBB_DCLEAR) { 1131 /* After no data phase, successful data phase and 1132 * after clearing bulk-in/-out stall condition 1133 */ 1134 sc->transfer_state = TSTATE_BBB_STATUS1; 1135 next_xfer = sc->transfer_xfer[XFER_BBB_CSW1]; 1136 } else { 1137 /* After first attempt of fetching CSW */ 1138 sc->transfer_state = TSTATE_BBB_STATUS2; 1139 next_xfer = sc->transfer_xfer[XFER_BBB_CSW2]; 1140 } 1141 1142 /* Read the Command Status Wrapper via bulk-in endpoint. */ 1143 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN], 1144 &sc->csw, UMASS_BBB_CSW_SIZE, 0, next_xfer)) { 1145 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1146 return; 1147 } 1148 1149 return; 1150 case TSTATE_BBB_STATUS1: /* first attempt */ 1151 case TSTATE_BBB_STATUS2: /* second attempt */ 1152 /* Status transfer, error handling */ 1153 if (err) { 1154 DPRINTF(UDMASS_BBB, ("%s: Failed to read CSW, %s%s\n", 1155 USBDEVNAME(sc->sc_dev), usbd_errstr(err), 1156 (sc->transfer_state == TSTATE_BBB_STATUS1? 1157 ", retrying":""))); 1158 1159 /* If this was the first attempt at fetching the CSW 1160 * retry it, otherwise fail. 1161 */ 1162 if (sc->transfer_state == TSTATE_BBB_STATUS1) { 1163 sc->transfer_state = TSTATE_BBB_SCLEAR; 1164 umass_clear_endpoint_stall(sc, UMASS_BULKIN, 1165 sc->transfer_xfer[XFER_BBB_SCLEAR]); 1166 return; 1167 } else { 1168 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1169 return; 1170 } 1171 } 1172 1173 DIF(UDMASS_BBB, umass_bbb_dump_csw(sc, &sc->csw)); 1174 1175 /* Translate weird command-status signatures. */ 1176 if ((sc->sc_quirks & UMASS_QUIRK_WRONG_CSWSIG) && 1177 UGETDW(sc->csw.dCSWSignature) == CSWSIGNATURE_OLYMPUS_C1) 1178 USETDW(sc->csw.dCSWSignature, CSWSIGNATURE); 1179 1180 /* Translate invalid command-status tags */ 1181 if (sc->sc_quirks & UMASS_QUIRK_WRONG_CSWTAG) 1182 USETDW(sc->csw.dCSWTag, UGETDW(sc->cbw.dCBWTag)); 1183 1184 /* Check CSW and handle any error */ 1185 if (UGETDW(sc->csw.dCSWSignature) != CSWSIGNATURE) { 1186 /* Invalid CSW: Wrong signature or wrong tag might 1187 * indicate that the device is confused -> reset it. 1188 */ 1189 printf("%s: Invalid CSW: sig 0x%08x should be 0x%08x\n", 1190 USBDEVNAME(sc->sc_dev), 1191 UGETDW(sc->csw.dCSWSignature), 1192 CSWSIGNATURE); 1193 1194 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1195 return; 1196 } else if (UGETDW(sc->csw.dCSWTag) 1197 != UGETDW(sc->cbw.dCBWTag)) { 1198 printf("%s: Invalid CSW: tag %d should be %d\n", 1199 USBDEVNAME(sc->sc_dev), 1200 UGETDW(sc->csw.dCSWTag), 1201 UGETDW(sc->cbw.dCBWTag)); 1202 1203 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1204 return; 1205 1206 /* CSW is valid here */ 1207 } else if (sc->csw.bCSWStatus > CSWSTATUS_PHASE) { 1208 printf("%s: Invalid CSW: status %d > %d\n", 1209 USBDEVNAME(sc->sc_dev), 1210 sc->csw.bCSWStatus, 1211 CSWSTATUS_PHASE); 1212 1213 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1214 return; 1215 } else if (sc->csw.bCSWStatus == CSWSTATUS_PHASE) { 1216 printf("%s: Phase Error, residue = %d\n", 1217 USBDEVNAME(sc->sc_dev), 1218 UGETDW(sc->csw.dCSWDataResidue)); 1219 1220 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1221 return; 1222 1223 } else if (sc->transfer_actlen > sc->transfer_datalen) { 1224 /* Buffer overrun! Don't let this go by unnoticed */ 1225 panic("%s: transferred %d bytes instead of %d bytes", 1226 USBDEVNAME(sc->sc_dev), 1227 sc->transfer_actlen, sc->transfer_datalen); 1228 #if 0 1229 } else if (sc->transfer_datalen - sc->transfer_actlen 1230 != UGETDW(sc->csw.dCSWDataResidue)) { 1231 DPRINTF(UDMASS_BBB, ("%s: actlen=%d != residue=%d\n", 1232 USBDEVNAME(sc->sc_dev), 1233 sc->transfer_datalen - sc->transfer_actlen, 1234 UGETDW(sc->csw.dCSWDataResidue))); 1235 1236 umass_bbb_reset(sc, STATUS_WIRE_FAILED); 1237 return; 1238 #endif 1239 } else if (sc->csw.bCSWStatus == CSWSTATUS_FAILED) { 1240 DPRINTF(UDMASS_BBB, ("%s: Command Failed, res = %d\n", 1241 USBDEVNAME(sc->sc_dev), 1242 UGETDW(sc->csw.dCSWDataResidue))); 1243 1244 /* SCSI command failed but transfer was succesful */ 1245 sc->transfer_state = TSTATE_IDLE; 1246 sc->transfer_cb(sc, sc->transfer_priv, 1247 UGETDW(sc->csw.dCSWDataResidue), 1248 STATUS_CMD_FAILED); 1249 1250 return; 1251 1252 } else { /* success */ 1253 sc->transfer_state = TSTATE_IDLE; 1254 sc->transfer_cb(sc, sc->transfer_priv, 1255 UGETDW(sc->csw.dCSWDataResidue), 1256 STATUS_CMD_OK); 1257 1258 return; 1259 } 1260 1261 /***** Bulk Reset *****/ 1262 case TSTATE_BBB_RESET1: 1263 if (err) 1264 printf("%s: BBB reset failed, %s\n", 1265 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1266 1267 sc->transfer_state = TSTATE_BBB_RESET2; 1268 umass_clear_endpoint_stall(sc, UMASS_BULKIN, 1269 sc->transfer_xfer[XFER_BBB_RESET2]); 1270 1271 return; 1272 case TSTATE_BBB_RESET2: 1273 if (err) /* should not occur */ 1274 printf("%s: BBB bulk-in clear stall failed, %s\n", 1275 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1276 /* no error recovery, otherwise we end up in a loop */ 1277 1278 sc->transfer_state = TSTATE_BBB_RESET3; 1279 umass_clear_endpoint_stall(sc, UMASS_BULKOUT, 1280 sc->transfer_xfer[XFER_BBB_RESET3]); 1281 1282 return; 1283 case TSTATE_BBB_RESET3: 1284 if (err) /* should not occur */ 1285 printf("%s: BBB bulk-out clear stall failed, %s\n", 1286 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1287 /* no error recovery, otherwise we end up in a loop */ 1288 1289 sc->transfer_state = TSTATE_IDLE; 1290 if (sc->transfer_priv) { 1291 sc->transfer_cb(sc, sc->transfer_priv, 1292 sc->transfer_datalen, 1293 sc->transfer_status); 1294 } 1295 1296 return; 1297 1298 /***** Default *****/ 1299 default: 1300 panic("%s: Unknown state %d", 1301 USBDEVNAME(sc->sc_dev), sc->transfer_state); 1302 } 1303 } 1304 1305 /* 1306 * Command/Bulk/Interrupt (CBI) specific functions 1307 */ 1308 1309 Static int 1310 umass_cbi_adsc(struct umass_softc *sc, char *buffer, int buflen, 1311 usbd_xfer_handle xfer) 1312 { 1313 KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I), 1314 ("sc->sc_wire == 0x%02x wrong for umass_cbi_adsc\n", 1315 sc->sc_wire)); 1316 1317 sc->sc_req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 1318 sc->sc_req.bRequest = UR_CBI_ADSC; 1319 USETW(sc->sc_req.wValue, 0); 1320 USETW(sc->sc_req.wIndex, sc->sc_ifaceno); 1321 USETW(sc->sc_req.wLength, buflen); 1322 return umass_setup_ctrl_transfer(sc, &sc->sc_req, buffer, 1323 buflen, 0, xfer); 1324 } 1325 1326 1327 Static void 1328 umass_cbi_reset(struct umass_softc *sc, int status) 1329 { 1330 int i; 1331 # define SEND_DIAGNOSTIC_CMDLEN 12 1332 1333 KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I), 1334 ("sc->sc_wire == 0x%02x wrong for umass_cbi_reset\n", 1335 sc->sc_wire)); 1336 1337 if (sc->sc_dying) 1338 return; 1339 1340 /* 1341 * Command Block Reset Protocol 1342 * 1343 * First send a reset request to the device. Then clear 1344 * any possibly stalled bulk endpoints. 1345 1346 * This is done in 3 steps, states: 1347 * TSTATE_CBI_RESET1 1348 * TSTATE_CBI_RESET2 1349 * TSTATE_CBI_RESET3 1350 * 1351 * If the reset doesn't succeed, the device should be port reset. 1352 */ 1353 1354 DPRINTF(UDMASS_CBI, ("%s: CBI Reset\n", 1355 USBDEVNAME(sc->sc_dev))); 1356 1357 KASSERT(sizeof(sc->cbl) >= SEND_DIAGNOSTIC_CMDLEN, 1358 ("%s: CBL struct is too small (%d < %d)\n", 1359 USBDEVNAME(sc->sc_dev), 1360 sizeof(sc->cbl), SEND_DIAGNOSTIC_CMDLEN)); 1361 1362 sc->transfer_state = TSTATE_CBI_RESET1; 1363 sc->transfer_status = status; 1364 1365 /* The 0x1d code is the SEND DIAGNOSTIC command. To distingiush between 1366 * the two the last 10 bytes of the cbl is filled with 0xff (section 1367 * 2.2 of the CBI spec). 1368 */ 1369 sc->cbl[0] = 0x1d; /* Command Block Reset */ 1370 sc->cbl[1] = 0x04; 1371 for (i = 2; i < SEND_DIAGNOSTIC_CMDLEN; i++) 1372 sc->cbl[i] = 0xff; 1373 1374 umass_cbi_adsc(sc, sc->cbl, SEND_DIAGNOSTIC_CMDLEN, 1375 sc->transfer_xfer[XFER_CBI_RESET1]); 1376 /* XXX if the command fails we should reset the port on the bub */ 1377 } 1378 1379 Static void 1380 umass_cbi_transfer(struct umass_softc *sc, int lun, 1381 void *cmd, int cmdlen, void *data, int datalen, int dir, 1382 u_int timeout, umass_callback cb, void *priv) 1383 { 1384 DPRINTF(UDMASS_CBI,("%s: umass_cbi_transfer cmd=0x%02x, len=%d\n", 1385 USBDEVNAME(sc->sc_dev), *(u_char *)cmd, datalen)); 1386 1387 KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I), 1388 ("sc->sc_wire == 0x%02x wrong for umass_cbi_transfer\n", 1389 sc->sc_wire)); 1390 1391 if (sc->sc_dying) 1392 return; 1393 1394 /* Be a little generous. */ 1395 sc->timeout = timeout + USBD_DEFAULT_TIMEOUT; 1396 1397 /* 1398 * Do a CBI transfer with cmdlen bytes from cmd, possibly 1399 * a data phase of datalen bytes from/to the device and finally a 1400 * csw read phase. 1401 * If the data direction was inbound a maximum of datalen bytes 1402 * is stored in the buffer pointed to by data. 1403 * 1404 * umass_cbi_transfer initialises the transfer and lets the state 1405 * machine in umass_cbi_state handle the completion. It uses the 1406 * following states: 1407 * TSTATE_CBI_COMMAND 1408 * -> XXX fill in 1409 * 1410 * An error in any of those states will invoke 1411 * umass_cbi_reset. 1412 */ 1413 1414 /* check the given arguments */ 1415 KASSERT(datalen == 0 || data != NULL, 1416 ("%s: datalen > 0, but no buffer",USBDEVNAME(sc->sc_dev))); 1417 KASSERT(datalen == 0 || dir != DIR_NONE, 1418 ("%s: direction is NONE while datalen is not zero\n", 1419 USBDEVNAME(sc->sc_dev))); 1420 1421 /* store the details for the data transfer phase */ 1422 sc->transfer_dir = dir; 1423 sc->transfer_data = data; 1424 sc->transfer_datalen = datalen; 1425 sc->transfer_actlen = 0; 1426 sc->transfer_cb = cb; 1427 sc->transfer_priv = priv; 1428 sc->transfer_status = STATUS_CMD_OK; 1429 1430 /* move from idle to the command state */ 1431 sc->transfer_state = TSTATE_CBI_COMMAND; 1432 1433 /* Send the Command Block from host to device via control endpoint. */ 1434 if (umass_cbi_adsc(sc, cmd, cmdlen, sc->transfer_xfer[XFER_CBI_CB])) 1435 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1436 } 1437 1438 Static void 1439 umass_cbi_state(usbd_xfer_handle xfer, usbd_private_handle priv, 1440 usbd_status err) 1441 { 1442 struct umass_softc *sc = (struct umass_softc *) priv; 1443 1444 KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I), 1445 ("sc->sc_wire == 0x%02x wrong for umass_cbi_state\n", 1446 sc->sc_wire)); 1447 1448 if (sc->sc_dying) 1449 return; 1450 1451 /* 1452 * State handling for CBI transfers. 1453 */ 1454 1455 DPRINTF(UDMASS_CBI, ("%s: Handling CBI state %d (%s), xfer=%p, %s\n", 1456 USBDEVNAME(sc->sc_dev), sc->transfer_state, 1457 states[sc->transfer_state], xfer, usbd_errstr(err))); 1458 1459 switch (sc->transfer_state) { 1460 1461 /***** CBI Transfer *****/ 1462 case TSTATE_CBI_COMMAND: 1463 if (err == USBD_STALLED) { 1464 DPRINTF(UDMASS_CBI, ("%s: Command Transport failed\n", 1465 USBDEVNAME(sc->sc_dev))); 1466 /* Status transport by control pipe (section 2.3.2.1). 1467 * The command contained in the command block failed. 1468 * 1469 * The control pipe has already been unstalled by the 1470 * USB stack. 1471 * Section 2.4.3.1.1 states that the bulk in endpoints 1472 * should not stalled at this point. 1473 */ 1474 1475 sc->transfer_state = TSTATE_IDLE; 1476 sc->transfer_cb(sc, sc->transfer_priv, 1477 sc->transfer_datalen, 1478 STATUS_CMD_FAILED); 1479 1480 return; 1481 } else if (err) { 1482 DPRINTF(UDMASS_CBI, ("%s: failed to send ADSC\n", 1483 USBDEVNAME(sc->sc_dev))); 1484 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1485 return; 1486 } 1487 1488 /* Data transport phase, setup transfer */ 1489 sc->transfer_state = TSTATE_CBI_DATA; 1490 if (sc->transfer_dir == DIR_IN) { 1491 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN], 1492 sc->data_buffer, sc->transfer_datalen, 1493 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1494 sc->transfer_xfer[XFER_CBI_DATA])) 1495 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1496 1497 return; 1498 } else if (sc->transfer_dir == DIR_OUT) { 1499 memcpy(sc->data_buffer, sc->transfer_data, 1500 sc->transfer_datalen); 1501 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT], 1502 sc->data_buffer, sc->transfer_datalen, 1503 USBD_NO_COPY,/* fixed length transfer */ 1504 sc->transfer_xfer[XFER_CBI_DATA])) 1505 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1506 1507 return; 1508 } else { 1509 DPRINTF(UDMASS_CBI, ("%s: no data phase\n", 1510 USBDEVNAME(sc->sc_dev))); 1511 } 1512 1513 /* FALLTHROUGH if no data phase, err == 0 */ 1514 case TSTATE_CBI_DATA: 1515 /* Command transport phase error handling (ignored if no data 1516 * phase (fallthrough from previous state)) */ 1517 if (sc->transfer_dir != DIR_NONE) { 1518 /* retrieve the length of the transfer that was done */ 1519 usbd_get_xfer_status(xfer, NULL, NULL, 1520 &sc->transfer_actlen, NULL); 1521 DPRINTF(UDMASS_CBI, ("%s: CBI_DATA actlen=%d\n", 1522 USBDEVNAME(sc->sc_dev), sc->transfer_actlen)); 1523 1524 if (err) { 1525 DPRINTF(UDMASS_CBI, ("%s: Data-%s %d failed, " 1526 "%s\n", USBDEVNAME(sc->sc_dev), 1527 (sc->transfer_dir == DIR_IN?"in":"out"), 1528 sc->transfer_datalen,usbd_errstr(err))); 1529 1530 if (err == USBD_STALLED) { 1531 sc->transfer_state = TSTATE_CBI_DCLEAR; 1532 umass_clear_endpoint_stall(sc, 1533 (sc->transfer_dir == DIR_IN? 1534 UMASS_BULKIN:UMASS_BULKOUT), 1535 sc->transfer_xfer[XFER_CBI_DCLEAR]); 1536 } else { 1537 /* Unless the error is a pipe stall the 1538 * error is fatal. 1539 */ 1540 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1541 } 1542 return; 1543 } 1544 } 1545 1546 if (sc->transfer_dir == DIR_IN) 1547 memcpy(sc->transfer_data, sc->data_buffer, 1548 sc->transfer_actlen); 1549 1550 DIF(UDMASS_CBI, if (sc->transfer_dir == DIR_IN) 1551 umass_dump_buffer(sc, sc->transfer_data, 1552 sc->transfer_actlen, 48)); 1553 1554 /* Status phase */ 1555 if (sc->sc_wire == UMASS_WPROTO_CBI_I) { 1556 sc->transfer_state = TSTATE_CBI_STATUS; 1557 memset(&sc->sbl, 0, sizeof(sc->sbl)); 1558 if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_INTRIN], 1559 &sc->sbl, sizeof(sc->sbl), 1560 0, /* fixed length transfer */ 1561 sc->transfer_xfer[XFER_CBI_STATUS])) 1562 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1563 } else { 1564 /* No command completion interrupt. Request 1565 * sense to get status of command. 1566 */ 1567 sc->transfer_state = TSTATE_IDLE; 1568 sc->transfer_cb(sc, sc->transfer_priv, 1569 sc->transfer_datalen - sc->transfer_actlen, 1570 STATUS_CMD_UNKNOWN); 1571 } 1572 return; 1573 1574 case TSTATE_CBI_STATUS: 1575 if (err) { 1576 DPRINTF(UDMASS_CBI, ("%s: Status Transport failed\n", 1577 USBDEVNAME(sc->sc_dev))); 1578 /* Status transport by interrupt pipe (section 2.3.2.2). 1579 */ 1580 1581 if (err == USBD_STALLED) { 1582 sc->transfer_state = TSTATE_CBI_SCLEAR; 1583 umass_clear_endpoint_stall(sc, UMASS_INTRIN, 1584 sc->transfer_xfer[XFER_CBI_SCLEAR]); 1585 } else { 1586 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1587 } 1588 return; 1589 } 1590 1591 /* Dissect the information in the buffer */ 1592 1593 { 1594 u_int32_t actlen; 1595 usbd_get_xfer_status(xfer,NULL,NULL,&actlen,NULL); 1596 DPRINTF(UDMASS_CBI, ("%s: CBI_STATUS actlen=%d\n", 1597 USBDEVNAME(sc->sc_dev), actlen)); 1598 if (actlen != 2) 1599 break; 1600 } 1601 1602 if (sc->sc_cmd == UMASS_CPROTO_UFI) { 1603 int status; 1604 1605 /* Section 3.4.3.1.3 specifies that the UFI command 1606 * protocol returns an ASC and ASCQ in the interrupt 1607 * data block. 1608 */ 1609 1610 DPRINTF(UDMASS_CBI, ("%s: UFI CCI, ASC = 0x%02x, " 1611 "ASCQ = 0x%02x\n", 1612 USBDEVNAME(sc->sc_dev), 1613 sc->sbl.ufi.asc, sc->sbl.ufi.ascq)); 1614 1615 if ((sc->sbl.ufi.asc == 0 && sc->sbl.ufi.ascq == 0) || 1616 sc->sc_sense) 1617 status = STATUS_CMD_OK; 1618 else 1619 status = STATUS_CMD_FAILED; 1620 1621 /* No autosense, command successful */ 1622 sc->transfer_state = TSTATE_IDLE; 1623 sc->transfer_cb(sc, sc->transfer_priv, 1624 sc->transfer_datalen - sc->transfer_actlen, status); 1625 } else { 1626 int status; 1627 1628 /* Command Interrupt Data Block */ 1629 1630 DPRINTF(UDMASS_CBI, ("%s: type=0x%02x, value=0x%02x\n", 1631 USBDEVNAME(sc->sc_dev), 1632 sc->sbl.common.type, sc->sbl.common.value)); 1633 1634 if (sc->sbl.common.type == IDB_TYPE_CCI) { 1635 switch (sc->sbl.common.value & IDB_VALUE_STATUS_MASK) { 1636 case IDB_VALUE_PASS: 1637 status = STATUS_CMD_OK; 1638 break; 1639 case IDB_VALUE_FAIL: 1640 case IDB_VALUE_PERSISTENT: 1641 status = STATUS_CMD_FAILED; 1642 break; 1643 case IDB_VALUE_PHASE: 1644 default: /* XXX: gcc */ 1645 status = STATUS_WIRE_FAILED; 1646 break; 1647 } 1648 1649 sc->transfer_state = TSTATE_IDLE; 1650 sc->transfer_cb(sc, sc->transfer_priv, 1651 sc->transfer_datalen - sc->transfer_actlen, status); 1652 } 1653 } 1654 return; 1655 1656 case TSTATE_CBI_DCLEAR: 1657 if (err) { /* should not occur */ 1658 printf("%s: CBI bulk-%s stall clear failed, %s\n", 1659 USBDEVNAME(sc->sc_dev), 1660 (sc->transfer_dir == DIR_IN? "in":"out"), 1661 usbd_errstr(err)); 1662 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1663 } else { 1664 sc->transfer_state = TSTATE_IDLE; 1665 sc->transfer_cb(sc, sc->transfer_priv, 1666 sc->transfer_datalen, STATUS_CMD_FAILED); 1667 } 1668 return; 1669 1670 case TSTATE_CBI_SCLEAR: 1671 if (err) { /* should not occur */ 1672 printf("%s: CBI intr-in stall clear failed, %s\n", 1673 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1674 umass_cbi_reset(sc, STATUS_WIRE_FAILED); 1675 } else { 1676 sc->transfer_state = TSTATE_IDLE; 1677 sc->transfer_cb(sc, sc->transfer_priv, 1678 sc->transfer_datalen, STATUS_CMD_FAILED); 1679 } 1680 return; 1681 1682 /***** CBI Reset *****/ 1683 case TSTATE_CBI_RESET1: 1684 if (err) 1685 printf("%s: CBI reset failed, %s\n", 1686 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1687 1688 sc->transfer_state = TSTATE_CBI_RESET2; 1689 umass_clear_endpoint_stall(sc, UMASS_BULKIN, 1690 sc->transfer_xfer[XFER_CBI_RESET2]); 1691 1692 return; 1693 case TSTATE_CBI_RESET2: 1694 if (err) /* should not occur */ 1695 printf("%s: CBI bulk-in stall clear failed, %s\n", 1696 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1697 /* no error recovery, otherwise we end up in a loop */ 1698 1699 sc->transfer_state = TSTATE_CBI_RESET3; 1700 umass_clear_endpoint_stall(sc, UMASS_BULKOUT, 1701 sc->transfer_xfer[XFER_CBI_RESET3]); 1702 1703 return; 1704 case TSTATE_CBI_RESET3: 1705 if (err) /* should not occur */ 1706 printf("%s: CBI bulk-out stall clear failed, %s\n", 1707 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1708 /* no error recovery, otherwise we end up in a loop */ 1709 1710 sc->transfer_state = TSTATE_IDLE; 1711 if (sc->transfer_priv) { 1712 sc->transfer_cb(sc, sc->transfer_priv, 1713 sc->transfer_datalen, 1714 sc->transfer_status); 1715 } 1716 1717 return; 1718 1719 1720 /***** Default *****/ 1721 default: 1722 panic("%s: Unknown state %d", 1723 USBDEVNAME(sc->sc_dev), sc->transfer_state); 1724 } 1725 } 1726 1727 usbd_status 1728 umass_bbb_get_max_lun(struct umass_softc *sc, u_int8_t *maxlun) 1729 { 1730 usb_device_request_t req; 1731 usbd_status err; 1732 1733 *maxlun = 0; /* Default to 0. */ 1734 1735 DPRINTF(UDMASS_BBB, ("%s: Get Max Lun\n", USBDEVNAME(sc->sc_dev))); 1736 1737 /* The Get Max Lun command is a class-specific request. */ 1738 req.bmRequestType = UT_READ_CLASS_INTERFACE; 1739 req.bRequest = UR_BBB_GET_MAX_LUN; 1740 USETW(req.wValue, 0); 1741 USETW(req.wIndex, sc->sc_ifaceno); 1742 USETW(req.wLength, 1); 1743 1744 err = usbd_do_request_flags(sc->sc_udev, &req, maxlun, 1745 USBD_SHORT_XFER_OK, 0, USBD_DEFAULT_TIMEOUT); 1746 switch (err) { 1747 case USBD_NORMAL_COMPLETION: 1748 DPRINTF(UDMASS_BBB, ("%s: Max Lun %d\n", 1749 USBDEVNAME(sc->sc_dev), *maxlun)); 1750 break; 1751 1752 case USBD_STALLED: 1753 /* 1754 * Device doesn't support Get Max Lun request. 1755 */ 1756 err = USBD_NORMAL_COMPLETION; 1757 DPRINTF(UDMASS_BBB, ("%s: Get Max Lun not supported\n", 1758 USBDEVNAME(sc->sc_dev))); 1759 break; 1760 1761 case USBD_SHORT_XFER: 1762 /* 1763 * XXX This must mean Get Max Lun is not supported, too! 1764 */ 1765 err = USBD_NORMAL_COMPLETION; 1766 DPRINTF(UDMASS_BBB, ("%s: Get Max Lun SHORT_XFER\n", 1767 USBDEVNAME(sc->sc_dev))); 1768 break; 1769 1770 default: 1771 printf("%s: Get Max Lun failed: %s\n", 1772 USBDEVNAME(sc->sc_dev), usbd_errstr(err)); 1773 /* XXX Should we port_reset the device? */ 1774 break; 1775 } 1776 1777 return (err); 1778 } 1779 1780 1781 1782 1783 #ifdef UMASS_DEBUG 1784 Static void 1785 umass_bbb_dump_cbw(struct umass_softc *sc, umass_bbb_cbw_t *cbw) 1786 { 1787 int clen = cbw->bCDBLength; 1788 int dlen = UGETDW(cbw->dCBWDataTransferLength); 1789 u_int8_t *c = cbw->CBWCDB; 1790 int tag = UGETDW(cbw->dCBWTag); 1791 int flags = cbw->bCBWFlags; 1792 1793 DPRINTF(UDMASS_BBB, ("%s: CBW %d: cmdlen=%d " 1794 "(0x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%s), " 1795 "data = %d bytes, dir = %s\n", 1796 USBDEVNAME(sc->sc_dev), tag, clen, 1797 c[0], c[1], c[2], c[3], c[4], c[5], 1798 c[6], c[7], c[8], c[9], 1799 (clen > 10? "...":""), 1800 dlen, (flags == CBWFLAGS_IN? "in": 1801 (flags == CBWFLAGS_OUT? "out":"<invalid>")))); 1802 } 1803 1804 Static void 1805 umass_bbb_dump_csw(struct umass_softc *sc, umass_bbb_csw_t *csw) 1806 { 1807 int sig = UGETDW(csw->dCSWSignature); 1808 int tag = UGETDW(csw->dCSWTag); 1809 int res = UGETDW(csw->dCSWDataResidue); 1810 int status = csw->bCSWStatus; 1811 1812 DPRINTF(UDMASS_BBB, ("%s: CSW %d: sig = 0x%08x (%s), tag = %d, " 1813 "res = %d, status = 0x%02x (%s)\n", USBDEVNAME(sc->sc_dev), 1814 tag, sig, (sig == CSWSIGNATURE? "valid":"invalid"), 1815 tag, res, 1816 status, (status == CSWSTATUS_GOOD? "good": 1817 (status == CSWSTATUS_FAILED? "failed": 1818 (status == CSWSTATUS_PHASE? "phase":"<invalid>"))))); 1819 } 1820 1821 Static void 1822 umass_dump_buffer(struct umass_softc *sc, u_int8_t *buffer, int buflen, 1823 int printlen) 1824 { 1825 int i, j; 1826 char s1[40]; 1827 char s2[40]; 1828 char s3[5]; 1829 1830 s1[0] = '\0'; 1831 s3[0] = '\0'; 1832 1833 snprintf(s2, sizeof(s2), " buffer=%p, buflen=%d", buffer, buflen); 1834 for (i = 0; i < buflen && i < printlen; i++) { 1835 j = i % 16; 1836 if (j == 0 && i != 0) { 1837 DPRINTF(UDMASS_GEN, ("%s: 0x %s%s\n", 1838 USBDEVNAME(sc->sc_dev), s1, s2)); 1839 s2[0] = '\0'; 1840 } 1841 snprintf(&s1[j * 2], sizeof(s1) - j * 2, "%02x", 1842 buffer[i] & 0xff); 1843 } 1844 if (buflen > printlen) 1845 snprintf(s3, sizeof(s3), " ..."); 1846 DPRINTF(UDMASS_GEN, ("%s: 0x %s%s%s\n", 1847 USBDEVNAME(sc->sc_dev), s1, s2, s3)); 1848 } 1849 #endif 1850
Indexes created Tue Sep 30 11:09:46 GMT 2025