1 /* $NetBSD: usb_subr.c,v 1.217 2016/12/04 10:12:35 skrll Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/usb_subr.c,v 1.18 1999/11/17 22:33:47 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart@augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: usb_subr.c,v 1.217 2016/12/04 10:12:35 skrll Exp $"); 36 37 #ifdef _KERNEL_OPT 38 #include "opt_compat_netbsd.h" 39 #include "opt_usb.h" 40 #include "opt_usbverbose.h" 41 #endif 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/kmem.h> 47 #include <sys/device.h> 48 #include <sys/select.h> 49 #include <sys/proc.h> 50 51 #include <sys/bus.h> 52 #include <sys/module.h> 53 54 #include <dev/usb/usb.h> 55 56 #include <dev/usb/usbdi.h> 57 #include <dev/usb/usbdi_util.h> 58 #include <dev/usb/usbdivar.h> 59 #include <dev/usb/usbdevs.h> 60 #include <dev/usb/usb_quirks.h> 61 #include <dev/usb/usb_verbose.h> 62 #include <dev/usb/usbhist.h> 63 64 #include "locators.h" 65 66 #define DPRINTF(FMT,A,B,C,D) USBHIST_LOG(usbdebug,FMT,A,B,C,D) 67 #define DPRINTFN(N,FMT,A,B,C,D) USBHIST_LOGN(usbdebug,N,FMT,A,B,C,D) 68 69 Static usbd_status usbd_set_config(struct usbd_device *, int); 70 Static void usbd_devinfo(struct usbd_device *, int, char *, size_t); 71 Static void usbd_devinfo_vp(struct usbd_device *, char *, size_t, char *, size_t, 72 int, int); 73 Static int usbd_getnewaddr(struct usbd_bus *); 74 Static int usbd_print(void *, const char *); 75 Static int usbd_ifprint(void *, const char *); 76 Static void usbd_free_iface_data(struct usbd_device *, int); 77 78 uint32_t usb_cookie_no = 0; 79 80 Static const char * const usbd_error_strs[] = { 81 "NORMAL_COMPLETION", 82 "IN_PROGRESS", 83 "PENDING_REQUESTS", 84 "NOT_STARTED", 85 "INVAL", 86 "NOMEM", 87 "CANCELLED", 88 "BAD_ADDRESS", 89 "IN_USE", 90 "NO_ADDR", 91 "SET_ADDR_FAILED", 92 "NO_POWER", 93 "TOO_DEEP", 94 "IOERROR", 95 "NOT_CONFIGURED", 96 "TIMEOUT", 97 "SHORT_XFER", 98 "STALLED", 99 "INTERRUPTED", 100 "XXX", 101 }; 102 103 DEV_VERBOSE_DEFINE(usb); 104 105 const char * 106 usbd_errstr(usbd_status err) 107 { 108 static char buffer[5]; 109 110 if (err < USBD_ERROR_MAX) { 111 return usbd_error_strs[err]; 112 } else { 113 snprintf(buffer, sizeof(buffer), "%d", err); 114 return buffer; 115 } 116 } 117 118 usbd_status 119 usbd_get_string_desc(struct usbd_device *dev, int sindex, int langid, 120 usb_string_descriptor_t *sdesc, int *sizep) 121 { 122 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 123 usb_device_request_t req; 124 usbd_status err; 125 int actlen; 126 127 req.bmRequestType = UT_READ_DEVICE; 128 req.bRequest = UR_GET_DESCRIPTOR; 129 USETW2(req.wValue, UDESC_STRING, sindex); 130 USETW(req.wIndex, langid); 131 USETW(req.wLength, 2); /* only size byte first */ 132 err = usbd_do_request_flags(dev, &req, sdesc, USBD_SHORT_XFER_OK, 133 &actlen, USBD_DEFAULT_TIMEOUT); 134 if (err) 135 return err; 136 137 if (actlen < 2) 138 return USBD_SHORT_XFER; 139 140 USETW(req.wLength, sdesc->bLength); /* the whole string */ 141 err = usbd_do_request_flags(dev, &req, sdesc, USBD_SHORT_XFER_OK, 142 &actlen, USBD_DEFAULT_TIMEOUT); 143 if (err) 144 return err; 145 146 if (actlen != sdesc->bLength) { 147 DPRINTF("expected %d, got %d", sdesc->bLength, actlen, 0, 0); 148 } 149 150 *sizep = actlen; 151 return USBD_NORMAL_COMPLETION; 152 } 153 154 static void 155 usbd_trim_spaces(char *p) 156 { 157 char *q, *e; 158 159 q = e = p; 160 while (*q == ' ') /* skip leading spaces */ 161 q++; 162 while ((*p = *q++)) /* copy string */ 163 if (*p++ != ' ') /* remember last non-space */ 164 e = p; 165 *e = '\0'; /* kill trailing spaces */ 166 } 167 168 static void 169 usbd_get_device_string(struct usbd_device *ud, uByte index, char **buf) 170 { 171 char *b = kmem_alloc(USB_MAX_ENCODED_STRING_LEN, KM_SLEEP); 172 if (b) { 173 usbd_status err = usbd_get_string0(ud, index, b, true); 174 if (err != USBD_NORMAL_COMPLETION) { 175 kmem_free(b, USB_MAX_ENCODED_STRING_LEN); 176 b = NULL; 177 } else { 178 usbd_trim_spaces(b); 179 } 180 } 181 *buf = b; 182 } 183 184 void 185 usbd_get_device_strings(struct usbd_device *ud) 186 { 187 usb_device_descriptor_t *udd = &ud->ud_ddesc; 188 189 usbd_get_device_string(ud, udd->iManufacturer, &ud->ud_vendor); 190 usbd_get_device_string(ud, udd->iProduct, &ud->ud_product); 191 usbd_get_device_string(ud, udd->iSerialNumber, &ud->ud_serial); 192 } 193 194 195 Static void 196 usbd_devinfo_vp(struct usbd_device *dev, char *v, size_t vl, char *p, 197 size_t pl, int usedev, int useencoded) 198 { 199 usb_device_descriptor_t *udd = &dev->ud_ddesc; 200 if (dev == NULL) 201 return; 202 203 v[0] = p[0] = '\0'; 204 205 if (usedev) { 206 if (usbd_get_string0(dev, udd->iManufacturer, v, useencoded) == 207 USBD_NORMAL_COMPLETION) 208 usbd_trim_spaces(v); 209 if (usbd_get_string0(dev, udd->iProduct, p, useencoded) == 210 USBD_NORMAL_COMPLETION) 211 usbd_trim_spaces(p); 212 } else { 213 if (dev->ud_vendor) { 214 strlcpy(v, dev->ud_vendor, vl); 215 } 216 if (dev->ud_product) { 217 strlcpy(p, dev->ud_product, pl); 218 } 219 } 220 if (v[0] == '\0') 221 usb_findvendor(v, vl, UGETW(udd->idVendor)); 222 if (p[0] == '\0') 223 usb_findproduct(p, pl, UGETW(udd->idVendor), 224 UGETW(udd->idProduct)); 225 } 226 227 int 228 usbd_printBCD(char *cp, size_t l, int bcd) 229 { 230 return snprintf(cp, l, "%x.%02x", bcd >> 8, bcd & 0xff); 231 } 232 233 Static void 234 usbd_devinfo(struct usbd_device *dev, int showclass, char *cp, size_t l) 235 { 236 usb_device_descriptor_t *udd = &dev->ud_ddesc; 237 char *vendor, *product; 238 int bcdDevice, bcdUSB; 239 char *ep; 240 241 vendor = kmem_alloc(USB_MAX_ENCODED_STRING_LEN * 2, KM_SLEEP); 242 if (vendor == NULL) { 243 *cp = '\0'; 244 return; 245 } 246 product = &vendor[USB_MAX_ENCODED_STRING_LEN]; 247 248 ep = cp + l; 249 250 usbd_devinfo_vp(dev, vendor, USB_MAX_ENCODED_STRING_LEN, 251 product, USB_MAX_ENCODED_STRING_LEN, 0, 1); 252 cp += snprintf(cp, ep - cp, "%s %s", vendor, product); 253 if (showclass) 254 cp += snprintf(cp, ep - cp, ", class %d/%d", 255 udd->bDeviceClass, udd->bDeviceSubClass); 256 bcdUSB = UGETW(udd->bcdUSB); 257 bcdDevice = UGETW(udd->bcdDevice); 258 cp += snprintf(cp, ep - cp, ", rev "); 259 cp += usbd_printBCD(cp, ep - cp, bcdUSB); 260 *cp++ = '/'; 261 cp += usbd_printBCD(cp, ep - cp, bcdDevice); 262 cp += snprintf(cp, ep - cp, ", addr %d", dev->ud_addr); 263 *cp = 0; 264 kmem_free(vendor, USB_MAX_ENCODED_STRING_LEN * 2); 265 } 266 267 char * 268 usbd_devinfo_alloc(struct usbd_device *dev, int showclass) 269 { 270 char *devinfop; 271 272 devinfop = kmem_alloc(DEVINFOSIZE, KM_SLEEP); 273 usbd_devinfo(dev, showclass, devinfop, DEVINFOSIZE); 274 return devinfop; 275 } 276 277 void 278 usbd_devinfo_free(char *devinfop) 279 { 280 kmem_free(devinfop, DEVINFOSIZE); 281 } 282 283 /* Delay for a certain number of ms */ 284 void 285 usb_delay_ms_locked(struct usbd_bus *bus, u_int ms, kmutex_t *lock) 286 { 287 /* Wait at least two clock ticks so we know the time has passed. */ 288 if (bus->ub_usepolling || cold) 289 delay((ms+1) * 1000); 290 else 291 kpause("usbdly", false, (ms*hz+999)/1000 + 1, lock); 292 } 293 294 void 295 usb_delay_ms(struct usbd_bus *bus, u_int ms) 296 { 297 usb_delay_ms_locked(bus, ms, NULL); 298 } 299 300 /* Delay given a device handle. */ 301 void 302 usbd_delay_ms_locked(struct usbd_device *dev, u_int ms, kmutex_t *lock) 303 { 304 usb_delay_ms_locked(dev->ud_bus, ms, lock); 305 } 306 307 /* Delay given a device handle. */ 308 void 309 usbd_delay_ms(struct usbd_device *dev, u_int ms) 310 { 311 usb_delay_ms_locked(dev->ud_bus, ms, NULL); 312 } 313 314 usbd_status 315 usbd_reset_port(struct usbd_device *dev, int port, usb_port_status_t *ps) 316 { 317 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 318 usb_device_request_t req; 319 usbd_status err; 320 int n; 321 322 req.bmRequestType = UT_WRITE_CLASS_OTHER; 323 req.bRequest = UR_SET_FEATURE; 324 USETW(req.wValue, UHF_PORT_RESET); 325 USETW(req.wIndex, port); 326 USETW(req.wLength, 0); 327 err = usbd_do_request(dev, &req, 0); 328 DPRINTFN(1, "port %d reset done, error=%d", port, err, 0, 0); 329 if (err) 330 return err; 331 n = 10; 332 do { 333 /* Wait for device to recover from reset. */ 334 usbd_delay_ms(dev, USB_PORT_RESET_DELAY); 335 err = usbd_get_port_status(dev, port, ps); 336 if (err) { 337 DPRINTF("get status failed %d", err, 0, 0, 0); 338 return err; 339 } 340 /* If the device disappeared, just give up. */ 341 if (!(UGETW(ps->wPortStatus) & UPS_CURRENT_CONNECT_STATUS)) 342 return USBD_NORMAL_COMPLETION; 343 } while ((UGETW(ps->wPortChange) & UPS_C_PORT_RESET) == 0 && --n > 0); 344 if (n == 0) 345 return USBD_TIMEOUT; 346 err = usbd_clear_port_feature(dev, port, UHF_C_PORT_RESET); 347 #ifdef USB_DEBUG 348 if (err) 349 DPRINTF("clear port feature failed %d", err, 0, 0, 0); 350 #endif 351 352 /* Wait for the device to recover from reset. */ 353 usbd_delay_ms(dev, USB_PORT_RESET_RECOVERY); 354 return err; 355 } 356 357 usb_interface_descriptor_t * 358 usbd_find_idesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx) 359 { 360 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 361 char *p = (char *)cd; 362 char *end = p + UGETW(cd->wTotalLength); 363 usb_interface_descriptor_t *d; 364 int curidx, lastidx, curaidx = 0; 365 366 for (curidx = lastidx = -1; p < end; ) { 367 d = (usb_interface_descriptor_t *)p; 368 DPRINTFN(4, "idx=%d(%d) altidx=%d(%d)", ifaceidx, curidx, 369 altidx, curaidx); 370 DPRINTFN(4, "len=%d type=%d", d->bLength, d->bDescriptorType, 371 0, 0); 372 if (d->bLength == 0) /* bad descriptor */ 373 break; 374 p += d->bLength; 375 if (p <= end && d->bDescriptorType == UDESC_INTERFACE) { 376 if (d->bInterfaceNumber != lastidx) { 377 lastidx = d->bInterfaceNumber; 378 curidx++; 379 curaidx = 0; 380 } else 381 curaidx++; 382 if (ifaceidx == curidx && altidx == curaidx) 383 return d; 384 } 385 } 386 return NULL; 387 } 388 389 usb_endpoint_descriptor_t * 390 usbd_find_edesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx, 391 int endptidx) 392 { 393 char *p = (char *)cd; 394 char *end = p + UGETW(cd->wTotalLength); 395 usb_interface_descriptor_t *d; 396 usb_endpoint_descriptor_t *e; 397 int curidx; 398 399 d = usbd_find_idesc(cd, ifaceidx, altidx); 400 if (d == NULL) 401 return NULL; 402 if (endptidx >= d->bNumEndpoints) /* quick exit */ 403 return NULL; 404 405 curidx = -1; 406 for (p = (char *)d + d->bLength; p < end; ) { 407 e = (usb_endpoint_descriptor_t *)p; 408 if (e->bLength == 0) /* bad descriptor */ 409 break; 410 p += e->bLength; 411 if (p <= end && e->bDescriptorType == UDESC_INTERFACE) 412 return NULL; 413 if (p <= end && e->bDescriptorType == UDESC_ENDPOINT) { 414 curidx++; 415 if (curidx == endptidx) 416 return e; 417 } 418 } 419 return NULL; 420 } 421 422 usbd_status 423 usbd_fill_iface_data(struct usbd_device *dev, int ifaceidx, int altidx) 424 { 425 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 426 struct usbd_interface *ifc = &dev->ud_ifaces[ifaceidx]; 427 usb_interface_descriptor_t *idesc; 428 char *p, *end; 429 int endpt, nendpt; 430 431 DPRINTFN(4, "ifaceidx=%d altidx=%d", ifaceidx, altidx, 0, 0); 432 idesc = usbd_find_idesc(dev->ud_cdesc, ifaceidx, altidx); 433 if (idesc == NULL) 434 return USBD_INVAL; 435 ifc->ui_dev = dev; 436 ifc->ui_idesc = idesc; 437 ifc->ui_index = ifaceidx; 438 ifc->ui_altindex = altidx; 439 nendpt = ifc->ui_idesc->bNumEndpoints; 440 DPRINTFN(4, "found idesc nendpt=%d", nendpt, 0, 0, 0); 441 if (nendpt != 0) { 442 ifc->ui_endpoints = kmem_alloc(nendpt * sizeof(struct usbd_endpoint), 443 KM_SLEEP); 444 if (ifc->ui_endpoints == NULL) 445 return USBD_NOMEM; 446 } else 447 ifc->ui_endpoints = NULL; 448 ifc->ui_priv = NULL; 449 p = (char *)ifc->ui_idesc + ifc->ui_idesc->bLength; 450 end = (char *)dev->ud_cdesc + UGETW(dev->ud_cdesc->wTotalLength); 451 #define ed ((usb_endpoint_descriptor_t *)p) 452 for (endpt = 0; endpt < nendpt; endpt++) { 453 DPRINTFN(10, "endpt=%d", endpt, 0, 0, 0); 454 for (; p < end; p += ed->bLength) { 455 DPRINTFN(10, "p=%p end=%p len=%d type=%d", 456 p, end, ed->bLength, ed->bDescriptorType); 457 if (p + ed->bLength <= end && ed->bLength != 0 && 458 ed->bDescriptorType == UDESC_ENDPOINT) 459 goto found; 460 if (ed->bLength == 0 || 461 ed->bDescriptorType == UDESC_INTERFACE) 462 break; 463 } 464 /* passed end, or bad desc */ 465 printf("usbd_fill_iface_data: bad descriptor(s): %s\n", 466 ed->bLength == 0 ? "0 length" : 467 ed->bDescriptorType == UDESC_INTERFACE ? "iface desc": 468 "out of data"); 469 goto bad; 470 found: 471 ifc->ui_endpoints[endpt].ue_edesc = ed; 472 if (dev->ud_speed == USB_SPEED_HIGH) { 473 u_int mps; 474 /* Control and bulk endpoints have max packet limits. */ 475 switch (UE_GET_XFERTYPE(ed->bmAttributes)) { 476 case UE_CONTROL: 477 mps = USB_2_MAX_CTRL_PACKET; 478 goto check; 479 case UE_BULK: 480 mps = USB_2_MAX_BULK_PACKET; 481 check: 482 if (UGETW(ed->wMaxPacketSize) != mps) { 483 USETW(ed->wMaxPacketSize, mps); 484 #ifdef DIAGNOSTIC 485 printf("usbd_fill_iface_data: bad max " 486 "packet size\n"); 487 #endif 488 } 489 break; 490 default: 491 break; 492 } 493 } 494 ifc->ui_endpoints[endpt].ue_refcnt = 0; 495 ifc->ui_endpoints[endpt].ue_toggle = 0; 496 p += ed->bLength; 497 } 498 #undef ed 499 LIST_INIT(&ifc->ui_pipes); 500 return USBD_NORMAL_COMPLETION; 501 502 bad: 503 if (ifc->ui_endpoints != NULL) { 504 kmem_free(ifc->ui_endpoints, nendpt * sizeof(struct usbd_endpoint)); 505 ifc->ui_endpoints = NULL; 506 } 507 return USBD_INVAL; 508 } 509 510 void 511 usbd_free_iface_data(struct usbd_device *dev, int ifcno) 512 { 513 struct usbd_interface *ifc = &dev->ud_ifaces[ifcno]; 514 if (ifc->ui_endpoints) { 515 int nendpt = ifc->ui_idesc->bNumEndpoints; 516 size_t sz = nendpt * sizeof(struct usbd_endpoint); 517 kmem_free(ifc->ui_endpoints, sz); 518 } 519 } 520 521 Static usbd_status 522 usbd_set_config(struct usbd_device *dev, int conf) 523 { 524 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 525 usb_device_request_t req; 526 527 DPRINTFN(5, "dev %p conf %d", dev, conf, 0, 0); 528 529 req.bmRequestType = UT_WRITE_DEVICE; 530 req.bRequest = UR_SET_CONFIG; 531 USETW(req.wValue, conf); 532 USETW(req.wIndex, 0); 533 USETW(req.wLength, 0); 534 return usbd_do_request(dev, &req, 0); 535 } 536 537 usbd_status 538 usbd_set_config_no(struct usbd_device *dev, int no, int msg) 539 { 540 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 541 usb_config_descriptor_t cd; 542 usbd_status err; 543 int index; 544 545 if (no == USB_UNCONFIG_NO) 546 return usbd_set_config_index(dev, USB_UNCONFIG_INDEX, msg); 547 548 DPRINTFN(5, "%d", no, 0, 0, 0); 549 /* Figure out what config index to use. */ 550 for (index = 0; index < dev->ud_ddesc.bNumConfigurations; index++) { 551 err = usbd_get_config_desc(dev, index, &cd); 552 if (err) 553 return err; 554 if (cd.bConfigurationValue == no) 555 return usbd_set_config_index(dev, index, msg); 556 } 557 return USBD_INVAL; 558 } 559 560 usbd_status 561 usbd_set_config_index(struct usbd_device *dev, int index, int msg) 562 { 563 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 564 usb_config_descriptor_t cd, *cdp; 565 usb_bos_descriptor_t *bdp = NULL; 566 usbd_status err; 567 int i, ifcidx, nifc, len, selfpowered, power; 568 569 DPRINTFN(5, "dev=%p index=%d", dev, index, 0, 0); 570 571 if (index >= dev->ud_ddesc.bNumConfigurations && 572 index != USB_UNCONFIG_INDEX) { 573 /* panic? */ 574 printf("usbd_set_config_index: illegal index\n"); 575 return USBD_INVAL; 576 } 577 578 /* XXX check that all interfaces are idle */ 579 if (dev->ud_config != USB_UNCONFIG_NO) { 580 DPRINTF("free old config", 0, 0, 0, 0); 581 /* Free all configuration data structures. */ 582 nifc = dev->ud_cdesc->bNumInterface; 583 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 584 usbd_free_iface_data(dev, ifcidx); 585 kmem_free(dev->ud_ifaces, nifc * sizeof(struct usbd_interface)); 586 kmem_free(dev->ud_cdesc, UGETW(dev->ud_cdesc->wTotalLength)); 587 if (dev->ud_bdesc != NULL) 588 kmem_free(dev->ud_bdesc, 589 UGETW(dev->ud_bdesc->wTotalLength)); 590 dev->ud_ifaces = NULL; 591 dev->ud_cdesc = NULL; 592 dev->ud_bdesc = NULL; 593 dev->ud_config = USB_UNCONFIG_NO; 594 } 595 596 if (index == USB_UNCONFIG_INDEX) { 597 /* We are unconfiguring the device, so leave unallocated. */ 598 DPRINTF("set config 0", 0, 0, 0, 0); 599 err = usbd_set_config(dev, USB_UNCONFIG_NO); 600 if (err) { 601 DPRINTF("setting config=0 failed, err = %d", err, 602 0, 0, 0); 603 } 604 return err; 605 } 606 607 /* Get the short descriptor. */ 608 err = usbd_get_config_desc(dev, index, &cd); 609 if (err) { 610 DPRINTF("get_config_desc=%d", err, 0, 0, 0); 611 return err; 612 } 613 len = UGETW(cd.wTotalLength); 614 cdp = kmem_alloc(len, KM_SLEEP); 615 if (cdp == NULL) 616 return USBD_NOMEM; 617 618 /* Get the full descriptor. Try a few times for slow devices. */ 619 for (i = 0; i < 3; i++) { 620 err = usbd_get_desc(dev, UDESC_CONFIG, index, len, cdp); 621 if (!err) 622 break; 623 usbd_delay_ms(dev, 200); 624 } 625 if (err) { 626 DPRINTF("get_desc=%d", err, 0, 0, 0); 627 goto bad; 628 } 629 if (cdp->bDescriptorType != UDESC_CONFIG) { 630 DPRINTF("bad desc %d", cdp->bDescriptorType, 0, 0, 0); 631 err = USBD_INVAL; 632 goto bad; 633 } 634 635 if (USB_IS_SS(dev->ud_speed)) { 636 usb_bos_descriptor_t bd; 637 638 /* get short bos desc */ 639 err = usbd_get_bos_desc(dev, index, &bd); 640 if (!err) { 641 int blen = UGETW(bd.wTotalLength); 642 bdp = kmem_alloc(blen, KM_SLEEP); 643 if (bdp == NULL) { 644 err = USBD_NOMEM; 645 goto bad; 646 } 647 648 /* Get the full desc */ 649 for (i = 0; i < 3; i++) { 650 err = usbd_get_desc(dev, UDESC_BOS, index, blen, 651 bdp); 652 if (!err) 653 break; 654 usbd_delay_ms(dev, 200); 655 } 656 if (err || bdp->bDescriptorType != UDESC_BOS) { 657 DPRINTF("error %d or bad desc %d", err, 658 bdp->bDescriptorType, 0, 0); 659 kmem_free(bdp, blen); 660 bdp = NULL; 661 } 662 } 663 } 664 dev->ud_bdesc = bdp; 665 666 /* 667 * Figure out if the device is self or bus powered. 668 */ 669 #if 0 /* XXX various devices don't report the power state correctly */ 670 selfpowered = 0; 671 err = usbd_get_device_status(dev, &ds); 672 if (!err && (UGETW(ds.wStatus) & UDS_SELF_POWERED)) 673 selfpowered = 1; 674 #endif 675 /* 676 * Use the power state in the configuration we are going 677 * to set. This doesn't necessarily reflect the actual 678 * power state of the device; the driver can control this 679 * by choosing the appropriate configuration. 680 */ 681 selfpowered = !!(cdp->bmAttributes & UC_SELF_POWERED); 682 683 DPRINTF("addr %d cno=%d attr=0x%02x, selfpowered=%d", 684 dev->ud_addr, cdp->bConfigurationValue, cdp->bmAttributes, 685 selfpowered); 686 DPRINTF("max power=%d", cdp->bMaxPower * 2, 0, 0, 0); 687 688 /* Check if we have enough power. */ 689 #if 0 /* this is a no-op, see above */ 690 if ((cdp->bmAttributes & UC_SELF_POWERED) && !selfpowered) { 691 if (msg) 692 printf("%s: device addr %d (config %d): " 693 "can't set self powered configuration\n", 694 device_xname(dev->ud_bus->bdev), dev->ud_addr, 695 cdp->bConfigurationValue); 696 err = USBD_NO_POWER; 697 goto bad; 698 } 699 #endif 700 #ifdef USB_DEBUG 701 if (dev->ud_powersrc == NULL) { 702 DPRINTF("No power source?", 0, 0, 0, 0); 703 err = USBD_IOERROR; 704 goto bad; 705 } 706 #endif 707 power = cdp->bMaxPower * 2; 708 if (power > dev->ud_powersrc->up_power) { 709 DPRINTF("power exceeded %d %d", power, dev->ud_powersrc->up_power, 710 0, 0); 711 /* XXX print nicer message. */ 712 if (msg) 713 printf("%s: device addr %d (config %d) exceeds power " 714 "budget, %d mA > %d mA\n", 715 device_xname(dev->ud_bus->ub_usbctl), dev->ud_addr, 716 cdp->bConfigurationValue, 717 power, dev->ud_powersrc->up_power); 718 err = USBD_NO_POWER; 719 goto bad; 720 } 721 dev->ud_power = power; 722 dev->ud_selfpowered = selfpowered; 723 724 /* Set the actual configuration value. */ 725 DPRINTF("set config %d", cdp->bConfigurationValue, 0, 0, 0); 726 err = usbd_set_config(dev, cdp->bConfigurationValue); 727 if (err) { 728 DPRINTF("setting config=%d failed, error=%d", 729 cdp->bConfigurationValue, err, 0, 0); 730 goto bad; 731 } 732 733 /* Allocate and fill interface data. */ 734 nifc = cdp->bNumInterface; 735 dev->ud_ifaces = kmem_alloc(nifc * sizeof(struct usbd_interface), 736 KM_SLEEP); 737 if (dev->ud_ifaces == NULL) { 738 err = USBD_NOMEM; 739 goto bad; 740 } 741 DPRINTFN(5, "dev=%p cdesc=%p", dev, cdp, 0, 0); 742 dev->ud_cdesc = cdp; 743 dev->ud_config = cdp->bConfigurationValue; 744 for (ifcidx = 0; ifcidx < nifc; ifcidx++) { 745 err = usbd_fill_iface_data(dev, ifcidx, 0); 746 if (err) { 747 while (--ifcidx >= 0) 748 usbd_free_iface_data(dev, ifcidx); 749 goto bad; 750 } 751 } 752 753 return USBD_NORMAL_COMPLETION; 754 755 bad: 756 kmem_free(cdp, len); 757 if (bdp != NULL) { 758 kmem_free(bdp, UGETW(bdp->wTotalLength)); 759 dev->ud_bdesc = NULL; 760 } 761 return err; 762 } 763 764 /* XXX add function for alternate settings */ 765 766 usbd_status 767 usbd_setup_pipe(struct usbd_device *dev, struct usbd_interface *iface, 768 struct usbd_endpoint *ep, int ival, struct usbd_pipe **pipe) 769 { 770 return usbd_setup_pipe_flags(dev, iface, ep, ival, pipe, 0); 771 } 772 773 usbd_status 774 usbd_setup_pipe_flags(struct usbd_device *dev, struct usbd_interface *iface, 775 struct usbd_endpoint *ep, int ival, struct usbd_pipe **pipe, uint8_t flags) 776 { 777 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 778 struct usbd_pipe *p; 779 usbd_status err; 780 781 p = kmem_alloc(dev->ud_bus->ub_pipesize, KM_SLEEP); 782 DPRINTFN(1, "dev=%p addr=%d iface=%p ep=%p pipe=%p", dev, dev->ud_addr, iface, ep); 783 if (p == NULL) { 784 DPRINTFN(1, "(nomem)", 0, 0, 0, 0); 785 return USBD_NOMEM; 786 } 787 p->up_dev = dev; 788 p->up_iface = iface; 789 p->up_endpoint = ep; 790 ep->ue_refcnt++; 791 p->up_intrxfer = NULL; 792 p->up_running = 0; 793 p->up_aborting = 0; 794 p->up_serialise = true; 795 p->up_repeat = 0; 796 p->up_interval = ival; 797 p->up_flags = flags; 798 p->up_serialise = true; 799 SIMPLEQ_INIT(&p->up_queue); 800 err = dev->ud_bus->ub_methods->ubm_open(p); 801 if (err) { 802 DPRINTF("endpoint=0x%x failed, error=%d", 803 ep->ue_edesc->bEndpointAddress, err, 0, 0); 804 kmem_intr_free(p, dev->ud_bus->ub_pipesize); 805 return err; 806 } 807 808 KASSERT(p->up_methods->upm_start || p->up_serialise == false); 809 810 usb_init_task(&p->up_async_task, usbd_clear_endpoint_stall_task, p, 811 USB_TASKQ_MPSAFE); 812 DPRINTFN(1, "pipe=%p", p, 0, 0, 0); 813 *pipe = p; 814 return USBD_NORMAL_COMPLETION; 815 } 816 817 /* Abort the device control pipe. */ 818 void 819 usbd_kill_pipe(struct usbd_pipe *pipe) 820 { 821 usbd_abort_pipe(pipe); 822 usbd_lock_pipe(pipe); 823 pipe->up_methods->upm_close(pipe); 824 usbd_unlock_pipe(pipe); 825 usb_rem_task(pipe->up_dev, &pipe->up_async_task); 826 pipe->up_endpoint->ue_refcnt--; 827 kmem_free(pipe, pipe->up_dev->ud_bus->ub_pipesize); 828 } 829 830 int 831 usbd_getnewaddr(struct usbd_bus *bus) 832 { 833 int addr; 834 835 for (addr = 1; addr < USB_MAX_DEVICES; addr++) 836 if (bus->ub_devices[addr] == NULL) 837 return addr; 838 return -1; 839 } 840 841 usbd_status 842 usbd_attach_roothub(device_t parent, struct usbd_device *dev) 843 { 844 struct usb_attach_arg uaa; 845 usb_device_descriptor_t *dd = &dev->ud_ddesc; 846 device_t dv; 847 848 uaa.uaa_device = dev; 849 uaa.uaa_usegeneric = 0; 850 uaa.uaa_port = 0; 851 uaa.uaa_vendor = UGETW(dd->idVendor); 852 uaa.uaa_product = UGETW(dd->idProduct); 853 uaa.uaa_release = UGETW(dd->bcdDevice); 854 uaa.uaa_class = dd->bDeviceClass; 855 uaa.uaa_subclass = dd->bDeviceSubClass; 856 uaa.uaa_proto = dd->bDeviceProtocol; 857 858 dv = config_found_ia(parent, "usbroothubif", &uaa, 0); 859 if (dv) { 860 dev->ud_subdevs = kmem_alloc(sizeof(dv), KM_SLEEP); 861 if (dev->ud_subdevs == NULL) 862 return USBD_NOMEM; 863 dev->ud_subdevs[0] = dv; 864 dev->ud_subdevlen = 1; 865 } 866 return USBD_NORMAL_COMPLETION; 867 } 868 869 static void 870 usbd_serialnumber(device_t dv, struct usbd_device *dev) 871 { 872 if (dev->ud_serial) { 873 prop_dictionary_set_cstring(device_properties(dv), 874 "serialnumber", dev->ud_serial); 875 } 876 } 877 878 static usbd_status 879 usbd_attachwholedevice(device_t parent, struct usbd_device *dev, int port, 880 int usegeneric) 881 { 882 struct usb_attach_arg uaa; 883 usb_device_descriptor_t *dd = &dev->ud_ddesc; 884 device_t dv; 885 int dlocs[USBDEVIFCF_NLOCS]; 886 887 uaa.uaa_device = dev; 888 uaa.uaa_usegeneric = usegeneric; 889 uaa.uaa_port = port; 890 uaa.uaa_vendor = UGETW(dd->idVendor); 891 uaa.uaa_product = UGETW(dd->idProduct); 892 uaa.uaa_release = UGETW(dd->bcdDevice); 893 uaa.uaa_class = dd->bDeviceClass; 894 uaa.uaa_subclass = dd->bDeviceSubClass; 895 uaa.uaa_proto = dd->bDeviceProtocol; 896 897 dlocs[USBDEVIFCF_PORT] = uaa.uaa_port; 898 dlocs[USBDEVIFCF_VENDOR] = uaa.uaa_vendor; 899 dlocs[USBDEVIFCF_PRODUCT] = uaa.uaa_product; 900 dlocs[USBDEVIFCF_RELEASE] = uaa.uaa_release; 901 /* the rest is historical ballast */ 902 dlocs[USBDEVIFCF_CONFIGURATION] = -1; 903 dlocs[USBDEVIFCF_INTERFACE] = -1; 904 905 KERNEL_LOCK(1, NULL); 906 dv = config_found_sm_loc(parent, "usbdevif", dlocs, &uaa, usbd_print, 907 config_stdsubmatch); 908 KERNEL_UNLOCK_ONE(NULL); 909 if (dv) { 910 dev->ud_subdevs = kmem_alloc(sizeof(dv), KM_SLEEP); 911 if (dev->ud_subdevs == NULL) 912 return USBD_NOMEM; 913 dev->ud_subdevs[0] = dv; 914 dev->ud_subdevlen = 1; 915 dev->ud_nifaces_claimed = 1; /* XXX */ 916 usbd_serialnumber(dv, dev); 917 } 918 return USBD_NORMAL_COMPLETION; 919 } 920 921 static usbd_status 922 usbd_attachinterfaces(device_t parent, struct usbd_device *dev, 923 int port, const int *locators) 924 { 925 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 926 struct usbif_attach_arg uiaa; 927 int ilocs[USBIFIFCF_NLOCS]; 928 usb_device_descriptor_t *dd = &dev->ud_ddesc; 929 int nifaces; 930 struct usbd_interface **ifaces; 931 int i, j, loc; 932 device_t dv; 933 934 nifaces = dev->ud_cdesc->bNumInterface; 935 ifaces = kmem_zalloc(nifaces * sizeof(*ifaces), KM_SLEEP); 936 if (!ifaces) 937 return USBD_NOMEM; 938 for (i = 0; i < nifaces; i++) { 939 if (!dev->ud_subdevs[i]) { 940 ifaces[i] = &dev->ud_ifaces[i]; 941 } 942 DPRINTF("interface %d %p", i, ifaces[i], 0, 0); 943 } 944 945 946 uiaa.uiaa_device = dev; 947 uiaa.uiaa_port = port; 948 uiaa.uiaa_vendor = UGETW(dd->idVendor); 949 uiaa.uiaa_product = UGETW(dd->idProduct); 950 uiaa.uiaa_release = UGETW(dd->bcdDevice); 951 uiaa.uiaa_configno = dev->ud_cdesc->bConfigurationValue; 952 uiaa.uiaa_ifaces = ifaces; 953 uiaa.uiaa_nifaces = nifaces; 954 ilocs[USBIFIFCF_PORT] = uiaa.uiaa_port; 955 ilocs[USBIFIFCF_VENDOR] = uiaa.uiaa_vendor; 956 ilocs[USBIFIFCF_PRODUCT] = uiaa.uiaa_product; 957 ilocs[USBIFIFCF_RELEASE] = uiaa.uiaa_release; 958 ilocs[USBIFIFCF_CONFIGURATION] = uiaa.uiaa_configno; 959 960 for (i = 0; i < nifaces; i++) { 961 if (!ifaces[i]) { 962 DPRINTF("interface %d claimed", i, 0, 0, 0); 963 continue; /* interface already claimed */ 964 } 965 uiaa.uiaa_iface = ifaces[i]; 966 uiaa.uiaa_class = ifaces[i]->ui_idesc->bInterfaceClass; 967 uiaa.uiaa_subclass = ifaces[i]->ui_idesc->bInterfaceSubClass; 968 uiaa.uiaa_proto = ifaces[i]->ui_idesc->bInterfaceProtocol; 969 uiaa.uiaa_ifaceno = ifaces[i]->ui_idesc->bInterfaceNumber; 970 971 DPRINTF("searching for interface %d...", i, 0, 0, 0); 972 DPRINTF("class %x subclass %x proto %x ifaceno %d", 973 uiaa.uiaa_class, uiaa.uiaa_subclass, uiaa.uiaa_proto, 974 uiaa.uiaa_ifaceno); 975 ilocs[USBIFIFCF_INTERFACE] = uiaa.uiaa_ifaceno; 976 if (locators != NULL) { 977 loc = locators[USBIFIFCF_CONFIGURATION]; 978 if (loc != USBIFIFCF_CONFIGURATION_DEFAULT && 979 loc != uiaa.uiaa_configno) 980 continue; 981 loc = locators[USBIFIFCF_INTERFACE]; 982 if (loc != USBIFIFCF_INTERFACE_DEFAULT && 983 loc != uiaa.uiaa_ifaceno) 984 continue; 985 } 986 KERNEL_LOCK(1, NULL); 987 dv = config_found_sm_loc(parent, "usbifif", ilocs, &uiaa, 988 usbd_ifprint, config_stdsubmatch); 989 KERNEL_UNLOCK_ONE(NULL); 990 if (!dv) 991 continue; 992 993 usbd_serialnumber(dv, dev); 994 995 /* claim */ 996 ifaces[i] = NULL; 997 /* account for ifaces claimed by the driver behind our back */ 998 for (j = 0; j < nifaces; j++) { 999 1000 if (!ifaces[j] && !dev->ud_subdevs[j]) { 1001 DPRINTF("interface %d claimed behind our back", 1002 j, 0, 0, 0); 1003 dev->ud_subdevs[j] = dv; 1004 dev->ud_nifaces_claimed++; 1005 } 1006 } 1007 } 1008 1009 kmem_free(ifaces, nifaces * sizeof(*ifaces)); 1010 return USBD_NORMAL_COMPLETION; 1011 } 1012 1013 usbd_status 1014 usbd_probe_and_attach(device_t parent, struct usbd_device *dev, 1015 int port, int addr) 1016 { 1017 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1018 usb_device_descriptor_t *dd = &dev->ud_ddesc; 1019 int confi, nifaces; 1020 usbd_status err; 1021 1022 /* First try with device specific drivers. */ 1023 DPRINTF("trying device specific drivers", 0, 0, 0, 0); 1024 err = usbd_attachwholedevice(parent, dev, port, 0); 1025 if (dev->ud_nifaces_claimed || err) 1026 return err; 1027 DPRINTF("no device specific driver found", 0, 0, 0, 0); 1028 1029 DPRINTF("looping over %d configurations", dd->bNumConfigurations, 1030 0, 0, 0); 1031 for (confi = 0; confi < dd->bNumConfigurations; confi++) { 1032 DPRINTFN(1, "trying config idx=%d", confi, 0, 0, 0); 1033 err = usbd_set_config_index(dev, confi, 1); 1034 if (err) { 1035 DPRINTF("port %d, set config at addr %d failed, " 1036 "error=%d", port, addr, err, 0); 1037 printf("%s: port %d, set config at addr %d failed\n", 1038 device_xname(parent), port, addr); 1039 return err; 1040 } 1041 nifaces = dev->ud_cdesc->bNumInterface; 1042 dev->ud_subdevs = kmem_zalloc(nifaces * sizeof(device_t), 1043 KM_SLEEP); 1044 if (dev->ud_subdevs == NULL) 1045 return USBD_NOMEM; 1046 dev->ud_subdevlen = nifaces; 1047 1048 err = usbd_attachinterfaces(parent, dev, port, NULL); 1049 1050 if (!dev->ud_nifaces_claimed) { 1051 kmem_free(dev->ud_subdevs, 1052 dev->ud_subdevlen * sizeof(device_t)); 1053 dev->ud_subdevs = 0; 1054 dev->ud_subdevlen = 0; 1055 } 1056 if (dev->ud_nifaces_claimed || err) 1057 return err; 1058 } 1059 /* No interfaces were attached in any of the configurations. */ 1060 1061 if (dd->bNumConfigurations > 1) /* don't change if only 1 config */ 1062 usbd_set_config_index(dev, 0, 0); 1063 1064 DPRINTF("no interface drivers found", 0, 0, 0, 0); 1065 1066 /* Finally try the generic driver. */ 1067 err = usbd_attachwholedevice(parent, dev, port, 1); 1068 1069 /* 1070 * The generic attach failed, but leave the device as it is. 1071 * We just did not find any drivers, that's all. The device is 1072 * fully operational and not harming anyone. 1073 */ 1074 DPRINTF("generic attach failed", 0, 0, 0, 0); 1075 1076 return USBD_NORMAL_COMPLETION; 1077 } 1078 1079 /** 1080 * Called from uhub_rescan(). usbd_new_device() for the target dev must be 1081 * called before calling this. 1082 */ 1083 usbd_status 1084 usbd_reattach_device(device_t parent, struct usbd_device *dev, 1085 int port, const int *locators) 1086 { 1087 int i, loc; 1088 1089 if (locators != NULL) { 1090 loc = locators[USBIFIFCF_PORT]; 1091 if (loc != USBIFIFCF_PORT_DEFAULT && loc != port) 1092 return USBD_NORMAL_COMPLETION; 1093 loc = locators[USBIFIFCF_VENDOR]; 1094 if (loc != USBIFIFCF_VENDOR_DEFAULT && 1095 loc != UGETW(dev->ud_ddesc.idVendor)) 1096 return USBD_NORMAL_COMPLETION; 1097 loc = locators[USBIFIFCF_PRODUCT]; 1098 if (loc != USBIFIFCF_PRODUCT_DEFAULT && 1099 loc != UGETW(dev->ud_ddesc.idProduct)) 1100 return USBD_NORMAL_COMPLETION; 1101 loc = locators[USBIFIFCF_RELEASE]; 1102 if (loc != USBIFIFCF_RELEASE_DEFAULT && 1103 loc != UGETW(dev->ud_ddesc.bcdDevice)) 1104 return USBD_NORMAL_COMPLETION; 1105 } 1106 if (dev->ud_subdevlen == 0) { 1107 /* XXX: check USBIFIFCF_CONFIGURATION and 1108 * USBIFIFCF_INTERFACE too */ 1109 return usbd_probe_and_attach(parent, dev, port, dev->ud_addr); 1110 } else if (dev->ud_subdevlen != dev->ud_cdesc->bNumInterface) { 1111 /* device-specific or generic driver is already attached. */ 1112 return USBD_NORMAL_COMPLETION; 1113 } 1114 /* Does the device have unconfigured interfaces? */ 1115 for (i = 0; i < dev->ud_subdevlen; i++) { 1116 if (dev->ud_subdevs[i] == NULL) { 1117 break; 1118 } 1119 } 1120 if (i >= dev->ud_subdevlen) 1121 return USBD_NORMAL_COMPLETION; 1122 return usbd_attachinterfaces(parent, dev, port, locators); 1123 } 1124 1125 /* 1126 * Get the first 8 bytes of the device descriptor. 1127 * Do as Windows does: try to read 64 bytes -- there are devices which 1128 * recognize the initial descriptor fetch (before the control endpoint's 1129 * MaxPacketSize is known by the host) by exactly this length. 1130 */ 1131 usbd_status 1132 usbd_get_initial_ddesc(struct usbd_device *dev, usb_device_descriptor_t *desc) 1133 { 1134 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1135 usb_device_request_t req; 1136 char buf[64]; 1137 int res, actlen; 1138 1139 DPRINTFN(5, "dev %p", dev, 0, 0, 0); 1140 1141 req.bmRequestType = UT_READ_DEVICE; 1142 req.bRequest = UR_GET_DESCRIPTOR; 1143 USETW2(req.wValue, UDESC_DEVICE, 0); 1144 USETW(req.wIndex, 0); 1145 USETW(req.wLength, 64); 1146 res = usbd_do_request_flags(dev, &req, buf, USBD_SHORT_XFER_OK, 1147 &actlen, USBD_DEFAULT_TIMEOUT); 1148 if (res) 1149 return res; 1150 if (actlen < 8) 1151 return USBD_SHORT_XFER; 1152 memcpy(desc, buf, 8); 1153 return USBD_NORMAL_COMPLETION; 1154 } 1155 1156 /* 1157 * Called when a new device has been put in the powered state, 1158 * but not yet in the addressed state. 1159 * Get initial descriptor, set the address, get full descriptor, 1160 * and attach a driver. 1161 */ 1162 usbd_status 1163 usbd_new_device(device_t parent, struct usbd_bus* bus, int depth, 1164 int speed, int port, struct usbd_port *up) 1165 { 1166 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1167 struct usbd_device *dev, *adev; 1168 struct usbd_device *hub; 1169 usb_device_descriptor_t *dd; 1170 usb_port_status_t ps; 1171 usbd_status err; 1172 int addr; 1173 int i; 1174 int p; 1175 1176 DPRINTF("bus=%p port=%d depth=%d speed=%d", bus, port, depth, speed); 1177 1178 if (bus->ub_methods->ubm_newdev != NULL) 1179 return (bus->ub_methods->ubm_newdev)(parent, bus, depth, speed, 1180 port, up); 1181 1182 addr = usbd_getnewaddr(bus); 1183 if (addr < 0) { 1184 printf("%s: No free USB addresses, new device ignored.\n", 1185 device_xname(bus->ub_usbctl)); 1186 return USBD_NO_ADDR; 1187 } 1188 1189 dev = kmem_zalloc(sizeof(*dev), KM_SLEEP); 1190 if (dev == NULL) 1191 return USBD_NOMEM; 1192 1193 dev->ud_bus = bus; 1194 1195 /* Set up default endpoint handle. */ 1196 dev->ud_ep0.ue_edesc = &dev->ud_ep0desc; 1197 1198 /* Set up default endpoint descriptor. */ 1199 dev->ud_ep0desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 1200 dev->ud_ep0desc.bDescriptorType = UDESC_ENDPOINT; 1201 dev->ud_ep0desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 1202 dev->ud_ep0desc.bmAttributes = UE_CONTROL; 1203 /* 1204 * temporary, will be fixed after first descriptor fetch 1205 * (which uses 64 bytes so it shouldn't be less), 1206 * highspeed devices must support 64 byte packets anyway 1207 */ 1208 if (speed == USB_SPEED_HIGH || speed == USB_SPEED_FULL) 1209 USETW(dev->ud_ep0desc.wMaxPacketSize, 64); 1210 else 1211 USETW(dev->ud_ep0desc.wMaxPacketSize, USB_MAX_IPACKET); 1212 1213 dev->ud_ep0desc.bInterval = 0; 1214 1215 /* doesn't matter, just don't leave it uninitialized */ 1216 dev->ud_ep0.ue_toggle = 0; 1217 1218 dev->ud_quirks = &usbd_no_quirk; 1219 dev->ud_addr = USB_START_ADDR; 1220 dev->ud_ddesc.bMaxPacketSize = 0; 1221 dev->ud_depth = depth; 1222 dev->ud_powersrc = up; 1223 dev->ud_myhub = up->up_parent; 1224 1225 up->up_dev = dev; 1226 1227 /* Locate port on upstream high speed hub */ 1228 for (adev = dev, hub = up->up_parent; 1229 hub != NULL && hub->ud_speed != USB_SPEED_HIGH; 1230 adev = hub, hub = hub->ud_myhub) 1231 ; 1232 if (hub) { 1233 for (p = 0; p < hub->ud_hub->uh_hubdesc.bNbrPorts; p++) { 1234 if (hub->ud_hub->uh_ports[p].up_dev == adev) { 1235 dev->ud_myhsport = &hub->ud_hub->uh_ports[p]; 1236 goto found; 1237 } 1238 } 1239 panic("usbd_new_device: cannot find HS port"); 1240 found: 1241 DPRINTFN(1, "high speed port %d", p, 0, 0, 0); 1242 } else { 1243 dev->ud_myhsport = NULL; 1244 } 1245 dev->ud_speed = speed; 1246 dev->ud_langid = USBD_NOLANG; 1247 dev->ud_cookie.cookie = ++usb_cookie_no; 1248 1249 /* Establish the default pipe. */ 1250 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1251 &dev->ud_pipe0, USBD_MPSAFE); 1252 if (err) { 1253 usbd_remove_device(dev, up); 1254 return err; 1255 } 1256 1257 dd = &dev->ud_ddesc; 1258 /* Try a few times in case the device is slow (i.e. outside specs.) */ 1259 for (i = 0; i < 10; i++) { 1260 /* Get the first 8 bytes of the device descriptor. */ 1261 err = usbd_get_initial_ddesc(dev, dd); 1262 if (!err) 1263 break; 1264 usbd_delay_ms(dev, 200); 1265 if ((i & 3) == 3) 1266 usbd_reset_port(up->up_parent, port, &ps); 1267 } 1268 if (err) { 1269 DPRINTF("addr=%d, getting first desc failed: %d", addr, err, 1270 0, 0); 1271 usbd_remove_device(dev, up); 1272 return err; 1273 } 1274 1275 /* Windows resets the port here, do likewise */ 1276 if (up->up_parent) 1277 usbd_reset_port(up->up_parent, port, &ps); 1278 1279 if (speed == USB_SPEED_HIGH) { 1280 /* Max packet size must be 64 (sec 5.5.3). */ 1281 if (dd->bMaxPacketSize != USB_2_MAX_CTRL_PACKET) { 1282 #ifdef DIAGNOSTIC 1283 printf("usbd_new_device: addr=%d bad max packet " 1284 "size=%d. adjusting to %d.\n", 1285 addr, dd->bMaxPacketSize, USB_2_MAX_CTRL_PACKET); 1286 #endif 1287 dd->bMaxPacketSize = USB_2_MAX_CTRL_PACKET; 1288 } 1289 } 1290 1291 DPRINTF("adding unit addr=%d, rev=%02x, class=%d, subclass=%d", addr, 1292 UGETW(dd->bcdUSB), dd->bDeviceClass, dd->bDeviceSubClass); 1293 DPRINTF("protocol=%d, maxpacket=%d, len=%d, speed=%d", 1294 dd->bDeviceProtocol, dd->bMaxPacketSize, dd->bLength, dev->ud_speed); 1295 1296 if (dd->bDescriptorType != UDESC_DEVICE) { 1297 /* Illegal device descriptor */ 1298 DPRINTF("illegal descriptor %d", dd->bDescriptorType, 0, 0, 0); 1299 usbd_remove_device(dev, up); 1300 return USBD_INVAL; 1301 } 1302 1303 if (dd->bLength < USB_DEVICE_DESCRIPTOR_SIZE) { 1304 DPRINTF("bad length %d", dd->bLength, 0, 0, 0); 1305 usbd_remove_device(dev, up); 1306 return USBD_INVAL; 1307 } 1308 1309 USETW(dev->ud_ep0desc.wMaxPacketSize, dd->bMaxPacketSize); 1310 1311 /* Re-establish the default pipe with the new MPS. */ 1312 usbd_kill_pipe(dev->ud_pipe0); 1313 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1314 &dev->ud_pipe0, USBD_MPSAFE); 1315 if (err) { 1316 DPRINTF("setup default pipe failed err %d", err, 0, 0, 0); 1317 usbd_remove_device(dev, up); 1318 return err; 1319 } 1320 1321 /* Set the address */ 1322 DPRINTFN(5, "setting device address=%d", addr, 0, 0, 0); 1323 err = usbd_set_address(dev, addr); 1324 if (err) { 1325 DPRINTF("set address %d failed, err = %d", addr, err, 0, 0); 1326 err = USBD_SET_ADDR_FAILED; 1327 usbd_remove_device(dev, up); 1328 return err; 1329 } 1330 1331 /* Allow device time to set new address */ 1332 usbd_delay_ms(dev, USB_SET_ADDRESS_SETTLE); 1333 dev->ud_addr = addr; /* new device address now */ 1334 bus->ub_devices[addr] = dev; 1335 1336 /* Re-establish the default pipe with the new address. */ 1337 usbd_kill_pipe(dev->ud_pipe0); 1338 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1339 &dev->ud_pipe0, USBD_MPSAFE); 1340 if (err) { 1341 DPRINTF("setup default pipe failed, err = %d", err, 0, 0, 0); 1342 usbd_remove_device(dev, up); 1343 return err; 1344 } 1345 1346 err = usbd_reload_device_desc(dev); 1347 if (err) { 1348 DPRINTF("addr=%d, getting full desc failed, err = %d", addr, 1349 err, 0, 0); 1350 usbd_remove_device(dev, up); 1351 return err; 1352 } 1353 1354 /* Assume 100mA bus powered for now. Changed when configured. */ 1355 dev->ud_power = USB_MIN_POWER; 1356 dev->ud_selfpowered = 0; 1357 1358 DPRINTF("new dev (addr %d), dev=%p, parent=%p", addr, dev, parent, 0); 1359 1360 usbd_get_device_strings(dev); 1361 1362 usbd_add_dev_event(USB_EVENT_DEVICE_ATTACH, dev); 1363 1364 if (port == 0) { /* root hub */ 1365 KASSERT(addr == 1); 1366 usbd_attach_roothub(parent, dev); 1367 return USBD_NORMAL_COMPLETION; 1368 } 1369 1370 err = usbd_probe_and_attach(parent, dev, port, addr); 1371 if (err) { 1372 usbd_remove_device(dev, up); 1373 return err; 1374 } 1375 1376 return USBD_NORMAL_COMPLETION; 1377 } 1378 1379 usbd_status 1380 usbd_reload_device_desc(struct usbd_device *dev) 1381 { 1382 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1383 usb_device_descriptor_t *udd = &dev->ud_ddesc; 1384 usbd_status err; 1385 1386 /* Get the full device descriptor. */ 1387 err = usbd_get_device_desc(dev, udd); 1388 if (err) 1389 return err; 1390 1391 DPRINTFN(15, "bLength %5u", udd->bLength, 0, 0, 0); 1392 DPRINTFN(15, "bDescriptorType %5u", udd->bDescriptorType, 0, 0, 0); 1393 DPRINTFN(15, "bcdUSB %2x.%02x", udd->bcdUSB[1], 1394 udd->bcdUSB[0], 0, 0); 1395 DPRINTFN(15, "bDeviceClass %5u", udd->bDeviceClass, 0, 0, 0); 1396 DPRINTFN(15, "bDeviceSubClass %5u", udd->bDeviceSubClass, 0, 0, 0); 1397 DPRINTFN(15, "bDeviceProtocol %5u", udd->bDeviceProtocol, 0, 0, 0); 1398 DPRINTFN(15, "bMaxPacketSize0 %5u", udd->bMaxPacketSize, 0, 0, 0); 1399 DPRINTFN(15, "idVendor 0x%04x", udd->idVendor, 0, 0, 0); 1400 DPRINTFN(15, "idProduct 0x%04x", udd->idProduct, 0, 0, 0); 1401 DPRINTFN(15, "bcdDevice %2x.%02x", udd->bcdDevice[1], 1402 udd->bcdDevice[0], 0, 0); 1403 DPRINTFN(15, "iManufacturer %5u", udd->iManufacturer, 0, 0, 0); 1404 DPRINTFN(15, "iProduct %5u", udd->iProduct, 0, 0, 0); 1405 DPRINTFN(15, "iSerial %5u", udd->iSerialNumber, 0, 0, 0); 1406 DPRINTFN(15, "bNumConfigurations %5u", udd->bNumConfigurations, 0, 0, 1407 0); 1408 1409 /* Figure out what's wrong with this device. */ 1410 dev->ud_quirks = usbd_find_quirk(udd); 1411 1412 return USBD_NORMAL_COMPLETION; 1413 } 1414 1415 void 1416 usbd_remove_device(struct usbd_device *dev, struct usbd_port *up) 1417 { 1418 1419 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1420 1421 DPRINTF("dev %p up %p", dev, up, 0, 0); 1422 1423 if (dev->ud_pipe0 != NULL) 1424 usbd_kill_pipe(dev->ud_pipe0); 1425 up->up_dev = NULL; 1426 dev->ud_bus->ub_devices[dev->ud_addr] = NULL; 1427 1428 kmem_free(dev, sizeof(*dev)); 1429 } 1430 1431 int 1432 usbd_print(void *aux, const char *pnp) 1433 { 1434 struct usb_attach_arg *uaa = aux; 1435 1436 if (pnp) { 1437 #define USB_DEVINFO 1024 1438 char *devinfo; 1439 if (!uaa->uaa_usegeneric) 1440 return QUIET; 1441 devinfo = kmem_alloc(USB_DEVINFO, KM_SLEEP); 1442 usbd_devinfo(uaa->uaa_device, 1, devinfo, USB_DEVINFO); 1443 aprint_normal("%s, %s", devinfo, pnp); 1444 kmem_free(devinfo, USB_DEVINFO); 1445 } 1446 aprint_normal(" port %d", uaa->uaa_port); 1447 #if 0 1448 /* 1449 * It gets very crowded with these locators on the attach line. 1450 * They are not really needed since they are printed in the clear 1451 * by each driver. 1452 */ 1453 if (uaa->uaa_vendor != UHUB_UNK_VENDOR) 1454 aprint_normal(" vendor 0x%04x", uaa->uaa_vendor); 1455 if (uaa->uaa_product != UHUB_UNK_PRODUCT) 1456 aprint_normal(" product 0x%04x", uaa->uaa_product); 1457 if (uaa->uaa_release != UHUB_UNK_RELEASE) 1458 aprint_normal(" release 0x%04x", uaa->uaa_release); 1459 #endif 1460 return UNCONF; 1461 } 1462 1463 int 1464 usbd_ifprint(void *aux, const char *pnp) 1465 { 1466 struct usbif_attach_arg *uiaa = aux; 1467 1468 if (pnp) 1469 return QUIET; 1470 aprint_normal(" port %d", uiaa->uiaa_port); 1471 aprint_normal(" configuration %d", uiaa->uiaa_configno); 1472 aprint_normal(" interface %d", uiaa->uiaa_ifaceno); 1473 #if 0 1474 /* 1475 * It gets very crowded with these locators on the attach line. 1476 * They are not really needed since they are printed in the clear 1477 * by each driver. 1478 */ 1479 if (uaa->uaa_vendor != UHUB_UNK_VENDOR) 1480 aprint_normal(" vendor 0x%04x", uaa->uaa_vendor); 1481 if (uaa->uaa_product != UHUB_UNK_PRODUCT) 1482 aprint_normal(" product 0x%04x", uaa->uaa_product); 1483 if (uaa->uaa_release != UHUB_UNK_RELEASE) 1484 aprint_normal(" release 0x%04x", uaa->uaa_release); 1485 #endif 1486 return UNCONF; 1487 } 1488 1489 void 1490 usbd_fill_deviceinfo(struct usbd_device *dev, struct usb_device_info *di, 1491 int usedev) 1492 { 1493 struct usbd_port *p; 1494 int i, j, err; 1495 1496 di->udi_bus = device_unit(dev->ud_bus->ub_usbctl); 1497 di->udi_addr = dev->ud_addr; 1498 di->udi_cookie = dev->ud_cookie; 1499 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1500 di->udi_product, sizeof(di->udi_product), usedev, 1); 1501 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1502 UGETW(dev->ud_ddesc.bcdDevice)); 1503 if (usedev) { 1504 usbd_status uerr = usbd_get_string(dev, 1505 dev->ud_ddesc.iSerialNumber, di->udi_serial); 1506 if (uerr != USBD_NORMAL_COMPLETION) { 1507 di->udi_serial[0] = '\0'; 1508 } else { 1509 usbd_trim_spaces(di->udi_serial); 1510 } 1511 } else { 1512 di->udi_serial[0] = '\0'; 1513 if (dev->ud_serial) { 1514 strlcpy(di->udi_serial, dev->ud_serial, 1515 sizeof(di->udi_serial)); 1516 } 1517 } 1518 1519 di->udi_vendorNo = UGETW(dev->ud_ddesc.idVendor); 1520 di->udi_productNo = UGETW(dev->ud_ddesc.idProduct); 1521 di->udi_releaseNo = UGETW(dev->ud_ddesc.bcdDevice); 1522 di->udi_class = dev->ud_ddesc.bDeviceClass; 1523 di->udi_subclass = dev->ud_ddesc.bDeviceSubClass; 1524 di->udi_protocol = dev->ud_ddesc.bDeviceProtocol; 1525 di->udi_config = dev->ud_config; 1526 di->udi_power = dev->ud_selfpowered ? 0 : dev->ud_power; 1527 di->udi_speed = dev->ud_speed; 1528 1529 if (dev->ud_subdevlen > 0) { 1530 for (i = 0, j = 0; i < dev->ud_subdevlen && 1531 j < USB_MAX_DEVNAMES; i++) { 1532 if (!dev->ud_subdevs[i]) 1533 continue; 1534 strncpy(di->udi_devnames[j], 1535 device_xname(dev->ud_subdevs[i]), USB_MAX_DEVNAMELEN); 1536 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1537 j++; 1538 } 1539 } else { 1540 j = 0; 1541 } 1542 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1543 di->udi_devnames[j][0] = 0; /* empty */ 1544 1545 if (!dev->ud_hub) { 1546 di->udi_nports = 0; 1547 return; 1548 } 1549 1550 const int nports = dev->ud_hub->uh_hubdesc.bNbrPorts; 1551 for (i = 0; i < __arraycount(di->udi_ports) && i < nports; i++) { 1552 p = &dev->ud_hub->uh_ports[i]; 1553 if (p->up_dev) 1554 err = p->up_dev->ud_addr; 1555 else { 1556 int s = UGETW(p->up_status.wPortStatus); 1557 if (s & UPS_PORT_ENABLED) 1558 err = USB_PORT_ENABLED; 1559 else if (s & UPS_SUSPEND) 1560 err = USB_PORT_SUSPENDED; 1561 /* 1562 * Note: UPS_PORT_POWER_SS is available only 1563 * on 3.x, and UPS_PORT_POWER is available 1564 * only on 2.0 or 1.1. 1565 */ 1566 else if (USB_IS_SS(dev->ud_speed) && 1567 (s & UPS_PORT_POWER_SS)) 1568 err = USB_PORT_POWERED; 1569 else if (s & UPS_PORT_POWER) 1570 err = USB_PORT_POWERED; 1571 else 1572 err = USB_PORT_DISABLED; 1573 } 1574 di->udi_ports[i] = err; 1575 } 1576 di->udi_nports = nports; 1577 } 1578 1579 #ifdef COMPAT_30 1580 void 1581 usbd_fill_deviceinfo_old(struct usbd_device *dev, struct usb_device_info_old *di, 1582 int usedev) 1583 { 1584 struct usbd_port *p; 1585 int i, j, err; 1586 1587 di->udi_bus = device_unit(dev->ud_bus->ub_usbctl); 1588 di->udi_addr = dev->ud_addr; 1589 di->udi_cookie = dev->ud_cookie; 1590 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1591 di->udi_product, sizeof(di->udi_product), usedev, 0); 1592 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1593 UGETW(dev->ud_ddesc.bcdDevice)); 1594 di->udi_vendorNo = UGETW(dev->ud_ddesc.idVendor); 1595 di->udi_productNo = UGETW(dev->ud_ddesc.idProduct); 1596 di->udi_releaseNo = UGETW(dev->ud_ddesc.bcdDevice); 1597 di->udi_class = dev->ud_ddesc.bDeviceClass; 1598 di->udi_subclass = dev->ud_ddesc.bDeviceSubClass; 1599 di->udi_protocol = dev->ud_ddesc.bDeviceProtocol; 1600 di->udi_config = dev->ud_config; 1601 di->udi_power = dev->ud_selfpowered ? 0 : dev->ud_power; 1602 di->udi_speed = dev->ud_speed; 1603 1604 if (dev->ud_subdevlen > 0) { 1605 for (i = 0, j = 0; i < dev->ud_subdevlen && 1606 j < USB_MAX_DEVNAMES; i++) { 1607 if (!dev->ud_subdevs[i]) 1608 continue; 1609 strncpy(di->udi_devnames[j], 1610 device_xname(dev->ud_subdevs[i]), USB_MAX_DEVNAMELEN); 1611 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1612 j++; 1613 } 1614 } else { 1615 j = 0; 1616 } 1617 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1618 di->udi_devnames[j][0] = 0; /* empty */ 1619 1620 if (!dev->ud_hub) { 1621 di->udi_nports = 0; 1622 return; 1623 } 1624 1625 const int nports = dev->ud_hub->uh_hubdesc.bNbrPorts; 1626 for (i = 0; i < __arraycount(di->udi_ports) && i < nports; 1627 i++) { 1628 p = &dev->ud_hub->uh_ports[i]; 1629 if (p->up_dev) 1630 err = p->up_dev->ud_addr; 1631 else { 1632 int s = UGETW(p->up_status.wPortStatus); 1633 if (s & UPS_PORT_ENABLED) 1634 err = USB_PORT_ENABLED; 1635 else if (s & UPS_SUSPEND) 1636 err = USB_PORT_SUSPENDED; 1637 else if (s & UPS_PORT_POWER) 1638 err = USB_PORT_POWERED; 1639 else 1640 err = USB_PORT_DISABLED; 1641 } 1642 di->udi_ports[i] = err; 1643 } 1644 di->udi_nports = nports; 1645 } 1646 #endif 1647 1648 1649 void 1650 usb_free_device(struct usbd_device *dev) 1651 { 1652 int ifcidx, nifc; 1653 1654 if (dev->ud_pipe0 != NULL) 1655 usbd_kill_pipe(dev->ud_pipe0); 1656 if (dev->ud_ifaces != NULL) { 1657 nifc = dev->ud_cdesc->bNumInterface; 1658 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 1659 usbd_free_iface_data(dev, ifcidx); 1660 kmem_free(dev->ud_ifaces, 1661 nifc * sizeof(struct usbd_interface)); 1662 } 1663 if (dev->ud_cdesc != NULL) 1664 kmem_free(dev->ud_cdesc, UGETW(dev->ud_cdesc->wTotalLength)); 1665 if (dev->ud_bdesc != NULL) 1666 kmem_free(dev->ud_bdesc, UGETW(dev->ud_bdesc->wTotalLength)); 1667 if (dev->ud_subdevlen > 0) { 1668 kmem_free(dev->ud_subdevs, 1669 dev->ud_subdevlen * sizeof(device_t)); 1670 dev->ud_subdevlen = 0; 1671 } 1672 if (dev->ud_vendor) { 1673 kmem_free(dev->ud_vendor, USB_MAX_ENCODED_STRING_LEN); 1674 } 1675 if (dev->ud_product) { 1676 kmem_free(dev->ud_product, USB_MAX_ENCODED_STRING_LEN); 1677 } 1678 if (dev->ud_serial) { 1679 kmem_free(dev->ud_serial, USB_MAX_ENCODED_STRING_LEN); 1680 } 1681 kmem_free(dev, sizeof(*dev)); 1682 } 1683 1684 /* 1685 * The general mechanism for detaching drivers works as follows: Each 1686 * driver is responsible for maintaining a reference count on the 1687 * number of outstanding references to its softc (e.g. from 1688 * processing hanging in a read or write). The detach method of the 1689 * driver decrements this counter and flags in the softc that the 1690 * driver is dying and then wakes any sleepers. It then sleeps on the 1691 * softc. Each place that can sleep must maintain the reference 1692 * count. When the reference count drops to -1 (0 is the normal value 1693 * of the reference count) the a wakeup on the softc is performed 1694 * signaling to the detach waiter that all references are gone. 1695 */ 1696 1697 /* 1698 * Called from process context when we discover that a port has 1699 * been disconnected. 1700 */ 1701 int 1702 usb_disconnect_port(struct usbd_port *up, device_t parent, int flags) 1703 { 1704 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1705 struct usbd_device *dev = up->up_dev; 1706 device_t subdev; 1707 char subdevname[16]; 1708 const char *hubname = device_xname(parent); 1709 int i, rc; 1710 1711 DPRINTFN(3, "up=%p dev=%p port=%d", up, dev, up->up_portno, 0); 1712 1713 if (dev == NULL) { 1714 return 0; 1715 } 1716 1717 if (dev->ud_subdevlen > 0) { 1718 DPRINTFN(3, "disconnect subdevs", 0, 0, 0, 0); 1719 for (i = 0; i < dev->ud_subdevlen; i++) { 1720 if ((subdev = dev->ud_subdevs[i]) == NULL) 1721 continue; 1722 strlcpy(subdevname, device_xname(subdev), 1723 sizeof(subdevname)); 1724 if ((rc = config_detach(subdev, flags)) != 0) 1725 return rc; 1726 printf("%s: at %s", subdevname, hubname); 1727 if (up->up_portno != 0) 1728 printf(" port %d", up->up_portno); 1729 printf(" (addr %d) disconnected\n", dev->ud_addr); 1730 } 1731 KASSERT(!dev->ud_nifaces_claimed); 1732 } 1733 1734 usbd_add_dev_event(USB_EVENT_DEVICE_DETACH, dev); 1735 dev->ud_bus->ub_devices[dev->ud_addr] = NULL; 1736 up->up_dev = NULL; 1737 usb_free_device(dev); 1738 return 0; 1739 } 1740