1 /* $NetBSD: usb_subr.c,v 1.221 2017/10/28 00:37:12 pgoyette 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 1.221 2017/10/28 00:37:12 pgoyette 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 %jd, got %jd", 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; 172 usbd_status err; 173 174 b = kmem_alloc(USB_MAX_ENCODED_STRING_LEN, KM_SLEEP); 175 err = usbd_get_string0(ud, index, b, true); 176 if (err != USBD_NORMAL_COMPLETION) { 177 kmem_free(b, USB_MAX_ENCODED_STRING_LEN); 178 b = NULL; 179 } else { 180 usbd_trim_spaces(b); 181 } 182 183 *buf = b; 184 } 185 186 void 187 usbd_get_device_strings(struct usbd_device *ud) 188 { 189 usb_device_descriptor_t *udd = &ud->ud_ddesc; 190 191 usbd_get_device_string(ud, udd->iManufacturer, &ud->ud_vendor); 192 usbd_get_device_string(ud, udd->iProduct, &ud->ud_product); 193 usbd_get_device_string(ud, udd->iSerialNumber, &ud->ud_serial); 194 } 195 196 197 Static void 198 usbd_devinfo_vp(struct usbd_device *dev, char *v, size_t vl, char *p, 199 size_t pl, int usedev, int useencoded) 200 { 201 usb_device_descriptor_t *udd = &dev->ud_ddesc; 202 if (dev == NULL) 203 return; 204 205 v[0] = p[0] = '\0'; 206 207 if (usedev) { 208 if (usbd_get_string0(dev, udd->iManufacturer, v, useencoded) == 209 USBD_NORMAL_COMPLETION) 210 usbd_trim_spaces(v); 211 if (usbd_get_string0(dev, udd->iProduct, p, useencoded) == 212 USBD_NORMAL_COMPLETION) 213 usbd_trim_spaces(p); 214 } else { 215 if (dev->ud_vendor) { 216 strlcpy(v, dev->ud_vendor, vl); 217 } 218 if (dev->ud_product) { 219 strlcpy(p, dev->ud_product, pl); 220 } 221 } 222 if (v[0] == '\0') 223 usb_findvendor(v, vl, UGETW(udd->idVendor)); 224 if (p[0] == '\0') 225 usb_findproduct(p, pl, UGETW(udd->idVendor), 226 UGETW(udd->idProduct)); 227 } 228 229 int 230 usbd_printBCD(char *cp, size_t l, int bcd) 231 { 232 return snprintf(cp, l, "%x.%02x", bcd >> 8, bcd & 0xff); 233 } 234 235 Static void 236 usbd_devinfo(struct usbd_device *dev, int showclass, char *cp, size_t l) 237 { 238 usb_device_descriptor_t *udd = &dev->ud_ddesc; 239 char *vendor, *product; 240 int bcdDevice, bcdUSB; 241 char *ep; 242 243 vendor = kmem_alloc(USB_MAX_ENCODED_STRING_LEN * 2, KM_SLEEP); 244 product = &vendor[USB_MAX_ENCODED_STRING_LEN]; 245 246 ep = cp + l; 247 248 usbd_devinfo_vp(dev, vendor, USB_MAX_ENCODED_STRING_LEN, 249 product, USB_MAX_ENCODED_STRING_LEN, 0, 1); 250 cp += snprintf(cp, ep - cp, "%s (%#04x) %s (%#04x)", vendor, 251 UGETW(udd->idVendor), product, UGETW(udd->idProduct)); 252 if (showclass) 253 cp += snprintf(cp, ep - cp, ", class %d/%d", 254 udd->bDeviceClass, udd->bDeviceSubClass); 255 bcdUSB = UGETW(udd->bcdUSB); 256 bcdDevice = UGETW(udd->bcdDevice); 257 cp += snprintf(cp, ep - cp, ", rev "); 258 cp += usbd_printBCD(cp, ep - cp, bcdUSB); 259 *cp++ = '/'; 260 cp += usbd_printBCD(cp, ep - cp, bcdDevice); 261 cp += snprintf(cp, ep - cp, ", addr %d", dev->ud_addr); 262 *cp = 0; 263 kmem_free(vendor, USB_MAX_ENCODED_STRING_LEN * 2); 264 } 265 266 char * 267 usbd_devinfo_alloc(struct usbd_device *dev, int showclass) 268 { 269 char *devinfop; 270 271 devinfop = kmem_alloc(DEVINFOSIZE, KM_SLEEP); 272 usbd_devinfo(dev, showclass, devinfop, DEVINFOSIZE); 273 return devinfop; 274 } 275 276 void 277 usbd_devinfo_free(char *devinfop) 278 { 279 kmem_free(devinfop, DEVINFOSIZE); 280 } 281 282 /* Delay for a certain number of ms */ 283 void 284 usb_delay_ms_locked(struct usbd_bus *bus, u_int ms, kmutex_t *lock) 285 { 286 /* Wait at least two clock ticks so we know the time has passed. */ 287 if (bus->ub_usepolling || cold) 288 delay((ms+1) * 1000); 289 else 290 kpause("usbdly", false, (ms*hz+999)/1000 + 1, lock); 291 } 292 293 void 294 usb_delay_ms(struct usbd_bus *bus, u_int ms) 295 { 296 usb_delay_ms_locked(bus, ms, NULL); 297 } 298 299 /* Delay given a device handle. */ 300 void 301 usbd_delay_ms_locked(struct usbd_device *dev, u_int ms, kmutex_t *lock) 302 { 303 usb_delay_ms_locked(dev->ud_bus, ms, lock); 304 } 305 306 /* Delay given a device handle. */ 307 void 308 usbd_delay_ms(struct usbd_device *dev, u_int ms) 309 { 310 usb_delay_ms_locked(dev->ud_bus, ms, NULL); 311 } 312 313 usbd_status 314 usbd_reset_port(struct usbd_device *dev, int port, usb_port_status_t *ps) 315 { 316 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 317 usb_device_request_t req; 318 usbd_status err; 319 int n; 320 321 req.bmRequestType = UT_WRITE_CLASS_OTHER; 322 req.bRequest = UR_SET_FEATURE; 323 USETW(req.wValue, UHF_PORT_RESET); 324 USETW(req.wIndex, port); 325 USETW(req.wLength, 0); 326 err = usbd_do_request(dev, &req, 0); 327 DPRINTFN(1, "port %jd reset done, error=%jd", port, err, 0, 0); 328 if (err) 329 return err; 330 n = 10; 331 do { 332 /* Wait for device to recover from reset. */ 333 usbd_delay_ms(dev, USB_PORT_RESET_DELAY); 334 err = usbd_get_port_status(dev, port, ps); 335 if (err) { 336 DPRINTF("get status failed %jd", err, 0, 0, 0); 337 return err; 338 } 339 /* If the device disappeared, just give up. */ 340 if (!(UGETW(ps->wPortStatus) & UPS_CURRENT_CONNECT_STATUS)) 341 return USBD_NORMAL_COMPLETION; 342 } while ((UGETW(ps->wPortChange) & UPS_C_PORT_RESET) == 0 && --n > 0); 343 if (n == 0) 344 return USBD_TIMEOUT; 345 err = usbd_clear_port_feature(dev, port, UHF_C_PORT_RESET); 346 #ifdef USB_DEBUG 347 if (err) 348 DPRINTF("clear port feature failed %jd", err, 0, 0, 0); 349 #endif 350 351 /* Wait for the device to recover from reset. */ 352 usbd_delay_ms(dev, USB_PORT_RESET_RECOVERY); 353 return err; 354 } 355 356 usb_interface_descriptor_t * 357 usbd_find_idesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx) 358 { 359 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 360 char *p = (char *)cd; 361 char *end = p + UGETW(cd->wTotalLength); 362 usb_interface_descriptor_t *d; 363 int curidx, lastidx, curaidx = 0; 364 365 for (curidx = lastidx = -1; p < end; ) { 366 d = (usb_interface_descriptor_t *)p; 367 DPRINTFN(4, "idx=%jd(%jd) altidx=%jd(%jd)", ifaceidx, curidx, 368 altidx, curaidx); 369 DPRINTFN(4, "len=%jd type=%jd", d->bLength, d->bDescriptorType, 370 0, 0); 371 if (d->bLength == 0) /* bad descriptor */ 372 break; 373 p += d->bLength; 374 if (p <= end && d->bDescriptorType == UDESC_INTERFACE) { 375 if (d->bInterfaceNumber != lastidx) { 376 lastidx = d->bInterfaceNumber; 377 curidx++; 378 curaidx = 0; 379 } else 380 curaidx++; 381 if (ifaceidx == curidx && altidx == curaidx) 382 return d; 383 } 384 } 385 return NULL; 386 } 387 388 usb_endpoint_descriptor_t * 389 usbd_find_edesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx, 390 int endptidx) 391 { 392 char *p = (char *)cd; 393 char *end = p + UGETW(cd->wTotalLength); 394 usb_interface_descriptor_t *d; 395 usb_endpoint_descriptor_t *e; 396 int curidx; 397 398 d = usbd_find_idesc(cd, ifaceidx, altidx); 399 if (d == NULL) 400 return NULL; 401 if (endptidx >= d->bNumEndpoints) /* quick exit */ 402 return NULL; 403 404 curidx = -1; 405 for (p = (char *)d + d->bLength; p < end; ) { 406 e = (usb_endpoint_descriptor_t *)p; 407 if (e->bLength == 0) /* bad descriptor */ 408 break; 409 p += e->bLength; 410 if (p <= end && e->bDescriptorType == UDESC_INTERFACE) 411 return NULL; 412 if (p <= end && e->bDescriptorType == UDESC_ENDPOINT) { 413 curidx++; 414 if (curidx == endptidx) 415 return e; 416 } 417 } 418 return NULL; 419 } 420 421 usbd_status 422 usbd_fill_iface_data(struct usbd_device *dev, int ifaceidx, int altidx) 423 { 424 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 425 struct usbd_interface *ifc = &dev->ud_ifaces[ifaceidx]; 426 usb_interface_descriptor_t *idesc; 427 char *p, *end; 428 int endpt, nendpt; 429 430 DPRINTFN(4, "ifaceidx=%jd altidx=%jd", ifaceidx, altidx, 0, 0); 431 idesc = usbd_find_idesc(dev->ud_cdesc, ifaceidx, altidx); 432 if (idesc == NULL) 433 return USBD_INVAL; 434 ifc->ui_dev = dev; 435 ifc->ui_idesc = idesc; 436 ifc->ui_index = ifaceidx; 437 ifc->ui_altindex = altidx; 438 nendpt = ifc->ui_idesc->bNumEndpoints; 439 DPRINTFN(4, "found idesc nendpt=%jd", nendpt, 0, 0, 0); 440 if (nendpt != 0) { 441 ifc->ui_endpoints = kmem_alloc(nendpt * sizeof(struct usbd_endpoint), 442 KM_SLEEP); 443 } else 444 ifc->ui_endpoints = NULL; 445 ifc->ui_priv = NULL; 446 p = (char *)ifc->ui_idesc + ifc->ui_idesc->bLength; 447 end = (char *)dev->ud_cdesc + UGETW(dev->ud_cdesc->wTotalLength); 448 #define ed ((usb_endpoint_descriptor_t *)p) 449 for (endpt = 0; endpt < nendpt; endpt++) { 450 DPRINTFN(10, "endpt=%jd", endpt, 0, 0, 0); 451 for (; p < end; p += ed->bLength) { 452 DPRINTFN(10, "p=%#jx end=%#jx len=%jd type=%jd", 453 (uintptr_t)p, (uintptr_t)end, ed->bLength, 454 ed->bDescriptorType); 455 if (p + ed->bLength <= end && ed->bLength != 0 && 456 ed->bDescriptorType == UDESC_ENDPOINT) 457 goto found; 458 if (ed->bLength == 0 || 459 ed->bDescriptorType == UDESC_INTERFACE) 460 break; 461 } 462 /* passed end, or bad desc */ 463 printf("usbd_fill_iface_data: bad descriptor(s): %s\n", 464 ed->bLength == 0 ? "0 length" : 465 ed->bDescriptorType == UDESC_INTERFACE ? "iface desc": 466 "out of data"); 467 goto bad; 468 found: 469 ifc->ui_endpoints[endpt].ue_edesc = ed; 470 if (dev->ud_speed == USB_SPEED_HIGH) { 471 u_int mps; 472 /* Control and bulk endpoints have max packet limits. */ 473 switch (UE_GET_XFERTYPE(ed->bmAttributes)) { 474 case UE_CONTROL: 475 mps = USB_2_MAX_CTRL_PACKET; 476 goto check; 477 case UE_BULK: 478 mps = USB_2_MAX_BULK_PACKET; 479 check: 480 if (UGETW(ed->wMaxPacketSize) != mps) { 481 USETW(ed->wMaxPacketSize, mps); 482 #ifdef DIAGNOSTIC 483 printf("usbd_fill_iface_data: bad max " 484 "packet size\n"); 485 #endif 486 } 487 break; 488 default: 489 break; 490 } 491 } 492 ifc->ui_endpoints[endpt].ue_refcnt = 0; 493 ifc->ui_endpoints[endpt].ue_toggle = 0; 494 p += ed->bLength; 495 } 496 #undef ed 497 LIST_INIT(&ifc->ui_pipes); 498 return USBD_NORMAL_COMPLETION; 499 500 bad: 501 if (ifc->ui_endpoints != NULL) { 502 kmem_free(ifc->ui_endpoints, nendpt * sizeof(struct usbd_endpoint)); 503 ifc->ui_endpoints = NULL; 504 } 505 return USBD_INVAL; 506 } 507 508 void 509 usbd_free_iface_data(struct usbd_device *dev, int ifcno) 510 { 511 struct usbd_interface *ifc = &dev->ud_ifaces[ifcno]; 512 if (ifc->ui_endpoints) { 513 int nendpt = ifc->ui_idesc->bNumEndpoints; 514 size_t sz = nendpt * sizeof(struct usbd_endpoint); 515 kmem_free(ifc->ui_endpoints, sz); 516 } 517 } 518 519 Static usbd_status 520 usbd_set_config(struct usbd_device *dev, int conf) 521 { 522 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 523 usb_device_request_t req; 524 525 DPRINTFN(5, "dev %#jx conf %jd", (uintptr_t)dev, conf, 0, 0); 526 527 req.bmRequestType = UT_WRITE_DEVICE; 528 req.bRequest = UR_SET_CONFIG; 529 USETW(req.wValue, conf); 530 USETW(req.wIndex, 0); 531 USETW(req.wLength, 0); 532 return usbd_do_request(dev, &req, 0); 533 } 534 535 usbd_status 536 usbd_set_config_no(struct usbd_device *dev, int no, int msg) 537 { 538 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 539 usb_config_descriptor_t cd; 540 usbd_status err; 541 int index; 542 543 if (no == USB_UNCONFIG_NO) 544 return usbd_set_config_index(dev, USB_UNCONFIG_INDEX, msg); 545 546 DPRINTFN(5, "%jd", no, 0, 0, 0); 547 /* Figure out what config index to use. */ 548 for (index = 0; index < dev->ud_ddesc.bNumConfigurations; index++) { 549 err = usbd_get_config_desc(dev, index, &cd); 550 if (err) 551 return err; 552 if (cd.bConfigurationValue == no) 553 return usbd_set_config_index(dev, index, msg); 554 } 555 return USBD_INVAL; 556 } 557 558 usbd_status 559 usbd_set_config_index(struct usbd_device *dev, int index, int msg) 560 { 561 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 562 usb_config_descriptor_t cd, *cdp; 563 usb_bos_descriptor_t *bdp = NULL; 564 usbd_status err; 565 int i, ifcidx, nifc, len, selfpowered, power; 566 567 DPRINTFN(5, "dev=%#jx index=%jd", (uintptr_t)dev, index, 0, 0); 568 569 if (index >= dev->ud_ddesc.bNumConfigurations && 570 index != USB_UNCONFIG_INDEX) { 571 /* panic? */ 572 printf("usbd_set_config_index: illegal index\n"); 573 return USBD_INVAL; 574 } 575 576 /* XXX check that all interfaces are idle */ 577 if (dev->ud_config != USB_UNCONFIG_NO) { 578 DPRINTF("free old config", 0, 0, 0, 0); 579 /* Free all configuration data structures. */ 580 nifc = dev->ud_cdesc->bNumInterface; 581 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 582 usbd_free_iface_data(dev, ifcidx); 583 kmem_free(dev->ud_ifaces, nifc * sizeof(struct usbd_interface)); 584 kmem_free(dev->ud_cdesc, UGETW(dev->ud_cdesc->wTotalLength)); 585 if (dev->ud_bdesc != NULL) 586 kmem_free(dev->ud_bdesc, 587 UGETW(dev->ud_bdesc->wTotalLength)); 588 dev->ud_ifaces = NULL; 589 dev->ud_cdesc = NULL; 590 dev->ud_bdesc = NULL; 591 dev->ud_config = USB_UNCONFIG_NO; 592 } 593 594 if (index == USB_UNCONFIG_INDEX) { 595 /* We are unconfiguring the device, so leave unallocated. */ 596 DPRINTF("set config 0", 0, 0, 0, 0); 597 err = usbd_set_config(dev, USB_UNCONFIG_NO); 598 if (err) { 599 DPRINTF("setting config=0 failed, err = %jd", err, 600 0, 0, 0); 601 } 602 return err; 603 } 604 605 /* Get the short descriptor. */ 606 err = usbd_get_config_desc(dev, index, &cd); 607 if (err) { 608 DPRINTF("get_config_desc=%jd", err, 0, 0, 0); 609 return err; 610 } 611 len = UGETW(cd.wTotalLength); 612 cdp = kmem_alloc(len, KM_SLEEP); 613 614 /* Get the full descriptor. Try a few times for slow devices. */ 615 for (i = 0; i < 3; i++) { 616 err = usbd_get_desc(dev, UDESC_CONFIG, index, len, cdp); 617 if (!err) 618 break; 619 usbd_delay_ms(dev, 200); 620 } 621 if (err) { 622 DPRINTF("get_desc=%jd", err, 0, 0, 0); 623 goto bad; 624 } 625 if (cdp->bDescriptorType != UDESC_CONFIG) { 626 DPRINTF("bad desc %jd", cdp->bDescriptorType, 0, 0, 0); 627 err = USBD_INVAL; 628 goto bad; 629 } 630 631 if (USB_IS_SS(dev->ud_speed)) { 632 usb_bos_descriptor_t bd; 633 634 /* get short bos desc */ 635 err = usbd_get_bos_desc(dev, index, &bd); 636 if (!err) { 637 int blen = UGETW(bd.wTotalLength); 638 bdp = kmem_alloc(blen, KM_SLEEP); 639 640 /* Get the full desc */ 641 for (i = 0; i < 3; i++) { 642 err = usbd_get_desc(dev, UDESC_BOS, index, blen, 643 bdp); 644 if (!err) 645 break; 646 usbd_delay_ms(dev, 200); 647 } 648 if (err || bdp->bDescriptorType != UDESC_BOS) { 649 DPRINTF("error %jd or bad desc %jd", err, 650 bdp->bDescriptorType, 0, 0); 651 kmem_free(bdp, blen); 652 bdp = NULL; 653 } 654 } 655 } 656 dev->ud_bdesc = bdp; 657 658 /* 659 * Figure out if the device is self or bus powered. 660 */ 661 #if 0 /* XXX various devices don't report the power state correctly */ 662 selfpowered = 0; 663 err = usbd_get_device_status(dev, &ds); 664 if (!err && (UGETW(ds.wStatus) & UDS_SELF_POWERED)) 665 selfpowered = 1; 666 #endif 667 /* 668 * Use the power state in the configuration we are going 669 * to set. This doesn't necessarily reflect the actual 670 * power state of the device; the driver can control this 671 * by choosing the appropriate configuration. 672 */ 673 selfpowered = !!(cdp->bmAttributes & UC_SELF_POWERED); 674 675 DPRINTF("addr %jd cno=%jd attr=%#02jx, selfpowered=%jd", 676 dev->ud_addr, cdp->bConfigurationValue, cdp->bmAttributes, 677 selfpowered); 678 DPRINTF("max power=%jd", cdp->bMaxPower * 2, 0, 0, 0); 679 680 /* Check if we have enough power. */ 681 #if 0 /* this is a no-op, see above */ 682 if ((cdp->bmAttributes & UC_SELF_POWERED) && !selfpowered) { 683 if (msg) 684 printf("%s: device addr %d (config %d): " 685 "can't set self powered configuration\n", 686 device_xname(dev->ud_bus->bdev), dev->ud_addr, 687 cdp->bConfigurationValue); 688 err = USBD_NO_POWER; 689 goto bad; 690 } 691 #endif 692 #ifdef USB_DEBUG 693 if (dev->ud_powersrc == NULL) { 694 DPRINTF("No power source?", 0, 0, 0, 0); 695 err = USBD_IOERROR; 696 goto bad; 697 } 698 #endif 699 power = cdp->bMaxPower * 2; 700 if (power > dev->ud_powersrc->up_power) { 701 DPRINTF("power exceeded %jd %jd", power, 702 dev->ud_powersrc->up_power, 0, 0); 703 /* XXX print nicer message. */ 704 if (msg) 705 printf("%s: device addr %d (config %d) exceeds power " 706 "budget, %d mA > %d mA\n", 707 device_xname(dev->ud_bus->ub_usbctl), dev->ud_addr, 708 cdp->bConfigurationValue, 709 power, dev->ud_powersrc->up_power); 710 err = USBD_NO_POWER; 711 goto bad; 712 } 713 dev->ud_power = power; 714 dev->ud_selfpowered = selfpowered; 715 716 /* Set the actual configuration value. */ 717 DPRINTF("set config %jd", cdp->bConfigurationValue, 0, 0, 0); 718 err = usbd_set_config(dev, cdp->bConfigurationValue); 719 if (err) { 720 DPRINTF("setting config=%jd failed, error=%jd", 721 cdp->bConfigurationValue, err, 0, 0); 722 goto bad; 723 } 724 725 /* Allocate and fill interface data. */ 726 nifc = cdp->bNumInterface; 727 dev->ud_ifaces = kmem_alloc(nifc * sizeof(struct usbd_interface), 728 KM_SLEEP); 729 DPRINTFN(5, "dev=%#jx cdesc=%#jx", (uintptr_t)dev, (uintptr_t)cdp, 730 0, 0); 731 dev->ud_cdesc = cdp; 732 dev->ud_config = cdp->bConfigurationValue; 733 for (ifcidx = 0; ifcidx < nifc; ifcidx++) { 734 err = usbd_fill_iface_data(dev, ifcidx, 0); 735 if (err) { 736 while (--ifcidx >= 0) 737 usbd_free_iface_data(dev, ifcidx); 738 goto bad; 739 } 740 } 741 742 return USBD_NORMAL_COMPLETION; 743 744 bad: 745 kmem_free(cdp, len); 746 if (bdp != NULL) { 747 kmem_free(bdp, UGETW(bdp->wTotalLength)); 748 dev->ud_bdesc = NULL; 749 } 750 return err; 751 } 752 753 /* XXX add function for alternate settings */ 754 755 usbd_status 756 usbd_setup_pipe(struct usbd_device *dev, struct usbd_interface *iface, 757 struct usbd_endpoint *ep, int ival, struct usbd_pipe **pipe) 758 { 759 return usbd_setup_pipe_flags(dev, iface, ep, ival, pipe, 0); 760 } 761 762 usbd_status 763 usbd_setup_pipe_flags(struct usbd_device *dev, struct usbd_interface *iface, 764 struct usbd_endpoint *ep, int ival, struct usbd_pipe **pipe, uint8_t flags) 765 { 766 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 767 struct usbd_pipe *p; 768 usbd_status err; 769 770 p = kmem_alloc(dev->ud_bus->ub_pipesize, KM_SLEEP); 771 DPRINTFN(1, "dev=%#jx addr=%jd iface=%#jx ep=%#jx", 772 (uintptr_t)dev, dev->ud_addr, (uintptr_t)iface, (uintptr_t)ep); 773 DPRINTFN(1, "pipe=%#jx", (uintptr_t)p, 0, 0, 0); 774 p->up_dev = dev; 775 p->up_iface = iface; 776 p->up_endpoint = ep; 777 ep->ue_refcnt++; 778 p->up_intrxfer = NULL; 779 p->up_running = 0; 780 p->up_aborting = 0; 781 p->up_serialise = true; 782 p->up_repeat = 0; 783 p->up_interval = ival; 784 p->up_flags = flags; 785 p->up_serialise = true; 786 SIMPLEQ_INIT(&p->up_queue); 787 err = dev->ud_bus->ub_methods->ubm_open(p); 788 if (err) { 789 DPRINTF("endpoint=%#jx failed, error=%jd", 790 (uintptr_t)ep->ue_edesc->bEndpointAddress, err, 0, 0); 791 kmem_free(p, dev->ud_bus->ub_pipesize); 792 return err; 793 } 794 795 KASSERT(p->up_methods->upm_start || p->up_serialise == false); 796 797 usb_init_task(&p->up_async_task, usbd_clear_endpoint_stall_task, p, 798 USB_TASKQ_MPSAFE); 799 DPRINTFN(1, "pipe=%#jx", (uintptr_t)p, 0, 0, 0); 800 *pipe = p; 801 return USBD_NORMAL_COMPLETION; 802 } 803 804 /* Abort the device control pipe. */ 805 void 806 usbd_kill_pipe(struct usbd_pipe *pipe) 807 { 808 usbd_abort_pipe(pipe); 809 usbd_lock_pipe(pipe); 810 pipe->up_methods->upm_close(pipe); 811 usbd_unlock_pipe(pipe); 812 usb_rem_task(pipe->up_dev, &pipe->up_async_task); 813 pipe->up_endpoint->ue_refcnt--; 814 kmem_free(pipe, pipe->up_dev->ud_bus->ub_pipesize); 815 } 816 817 int 818 usbd_getnewaddr(struct usbd_bus *bus) 819 { 820 int addr; 821 822 for (addr = 1; addr < USB_MAX_DEVICES; addr++) { 823 size_t dindex = usb_addr2dindex(addr); 824 if (bus->ub_devices[dindex] == NULL) 825 return addr; 826 } 827 return -1; 828 } 829 830 usbd_status 831 usbd_attach_roothub(device_t parent, struct usbd_device *dev) 832 { 833 struct usb_attach_arg uaa; 834 usb_device_descriptor_t *dd = &dev->ud_ddesc; 835 device_t dv; 836 837 uaa.uaa_device = dev; 838 uaa.uaa_usegeneric = 0; 839 uaa.uaa_port = 0; 840 uaa.uaa_vendor = UGETW(dd->idVendor); 841 uaa.uaa_product = UGETW(dd->idProduct); 842 uaa.uaa_release = UGETW(dd->bcdDevice); 843 uaa.uaa_class = dd->bDeviceClass; 844 uaa.uaa_subclass = dd->bDeviceSubClass; 845 uaa.uaa_proto = dd->bDeviceProtocol; 846 847 dv = config_found_ia(parent, "usbroothubif", &uaa, 0); 848 if (dv) { 849 dev->ud_subdevs = kmem_alloc(sizeof(dv), KM_SLEEP); 850 dev->ud_subdevs[0] = dv; 851 dev->ud_subdevlen = 1; 852 } 853 return USBD_NORMAL_COMPLETION; 854 } 855 856 static void 857 usbd_serialnumber(device_t dv, struct usbd_device *dev) 858 { 859 if (dev->ud_serial) { 860 prop_dictionary_set_cstring(device_properties(dv), 861 "serialnumber", dev->ud_serial); 862 } 863 } 864 865 static usbd_status 866 usbd_attachwholedevice(device_t parent, struct usbd_device *dev, int port, 867 int usegeneric) 868 { 869 struct usb_attach_arg uaa; 870 usb_device_descriptor_t *dd = &dev->ud_ddesc; 871 device_t dv; 872 int dlocs[USBDEVIFCF_NLOCS]; 873 874 uaa.uaa_device = dev; 875 uaa.uaa_usegeneric = usegeneric; 876 uaa.uaa_port = port; 877 uaa.uaa_vendor = UGETW(dd->idVendor); 878 uaa.uaa_product = UGETW(dd->idProduct); 879 uaa.uaa_release = UGETW(dd->bcdDevice); 880 uaa.uaa_class = dd->bDeviceClass; 881 uaa.uaa_subclass = dd->bDeviceSubClass; 882 uaa.uaa_proto = dd->bDeviceProtocol; 883 884 dlocs[USBDEVIFCF_PORT] = uaa.uaa_port; 885 dlocs[USBDEVIFCF_VENDOR] = uaa.uaa_vendor; 886 dlocs[USBDEVIFCF_PRODUCT] = uaa.uaa_product; 887 dlocs[USBDEVIFCF_RELEASE] = uaa.uaa_release; 888 /* the rest is historical ballast */ 889 dlocs[USBDEVIFCF_CONFIGURATION] = -1; 890 dlocs[USBDEVIFCF_INTERFACE] = -1; 891 892 KERNEL_LOCK(1, NULL); 893 dv = config_found_sm_loc(parent, "usbdevif", dlocs, &uaa, usbd_print, 894 config_stdsubmatch); 895 KERNEL_UNLOCK_ONE(NULL); 896 if (dv) { 897 dev->ud_subdevs = kmem_alloc(sizeof(dv), KM_SLEEP); 898 dev->ud_subdevs[0] = dv; 899 dev->ud_subdevlen = 1; 900 dev->ud_nifaces_claimed = 1; /* XXX */ 901 usbd_serialnumber(dv, dev); 902 } 903 return USBD_NORMAL_COMPLETION; 904 } 905 906 static usbd_status 907 usbd_attachinterfaces(device_t parent, struct usbd_device *dev, 908 int port, const int *locators) 909 { 910 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 911 struct usbif_attach_arg uiaa; 912 int ilocs[USBIFIFCF_NLOCS]; 913 usb_device_descriptor_t *dd = &dev->ud_ddesc; 914 int nifaces; 915 struct usbd_interface **ifaces; 916 int i, j, loc; 917 device_t dv; 918 919 nifaces = dev->ud_cdesc->bNumInterface; 920 ifaces = kmem_zalloc(nifaces * sizeof(*ifaces), KM_SLEEP); 921 for (i = 0; i < nifaces; i++) { 922 if (!dev->ud_subdevs[i]) { 923 ifaces[i] = &dev->ud_ifaces[i]; 924 } 925 DPRINTF("interface %jd %#jx", i, (uintptr_t)ifaces[i], 0, 0); 926 } 927 928 929 uiaa.uiaa_device = dev; 930 uiaa.uiaa_port = port; 931 uiaa.uiaa_vendor = UGETW(dd->idVendor); 932 uiaa.uiaa_product = UGETW(dd->idProduct); 933 uiaa.uiaa_release = UGETW(dd->bcdDevice); 934 uiaa.uiaa_configno = dev->ud_cdesc->bConfigurationValue; 935 uiaa.uiaa_ifaces = ifaces; 936 uiaa.uiaa_nifaces = nifaces; 937 ilocs[USBIFIFCF_PORT] = uiaa.uiaa_port; 938 ilocs[USBIFIFCF_VENDOR] = uiaa.uiaa_vendor; 939 ilocs[USBIFIFCF_PRODUCT] = uiaa.uiaa_product; 940 ilocs[USBIFIFCF_RELEASE] = uiaa.uiaa_release; 941 ilocs[USBIFIFCF_CONFIGURATION] = uiaa.uiaa_configno; 942 943 for (i = 0; i < nifaces; i++) { 944 if (!ifaces[i]) { 945 DPRINTF("interface %jd claimed", i, 0, 0, 0); 946 continue; /* interface already claimed */ 947 } 948 uiaa.uiaa_iface = ifaces[i]; 949 uiaa.uiaa_class = ifaces[i]->ui_idesc->bInterfaceClass; 950 uiaa.uiaa_subclass = ifaces[i]->ui_idesc->bInterfaceSubClass; 951 uiaa.uiaa_proto = ifaces[i]->ui_idesc->bInterfaceProtocol; 952 uiaa.uiaa_ifaceno = ifaces[i]->ui_idesc->bInterfaceNumber; 953 954 DPRINTF("searching for interface %jd...", i, 0, 0, 0); 955 DPRINTF("class %jx subclass %jx proto %jx ifaceno %jd", 956 uiaa.uiaa_class, uiaa.uiaa_subclass, uiaa.uiaa_proto, 957 uiaa.uiaa_ifaceno); 958 ilocs[USBIFIFCF_INTERFACE] = uiaa.uiaa_ifaceno; 959 if (locators != NULL) { 960 loc = locators[USBIFIFCF_CONFIGURATION]; 961 if (loc != USBIFIFCF_CONFIGURATION_DEFAULT && 962 loc != uiaa.uiaa_configno) 963 continue; 964 loc = locators[USBIFIFCF_INTERFACE]; 965 if (loc != USBIFIFCF_INTERFACE_DEFAULT && 966 loc != uiaa.uiaa_ifaceno) 967 continue; 968 } 969 KERNEL_LOCK(1, NULL); 970 dv = config_found_sm_loc(parent, "usbifif", ilocs, &uiaa, 971 usbd_ifprint, config_stdsubmatch); 972 KERNEL_UNLOCK_ONE(NULL); 973 if (!dv) 974 continue; 975 976 usbd_serialnumber(dv, dev); 977 978 /* claim */ 979 ifaces[i] = NULL; 980 /* account for ifaces claimed by the driver behind our back */ 981 for (j = 0; j < nifaces; j++) { 982 983 if (!ifaces[j] && !dev->ud_subdevs[j]) { 984 DPRINTF("interface %jd claimed behind our back", 985 j, 0, 0, 0); 986 dev->ud_subdevs[j] = dv; 987 dev->ud_nifaces_claimed++; 988 } 989 } 990 } 991 992 kmem_free(ifaces, nifaces * sizeof(*ifaces)); 993 return USBD_NORMAL_COMPLETION; 994 } 995 996 usbd_status 997 usbd_probe_and_attach(device_t parent, struct usbd_device *dev, 998 int port, int addr) 999 { 1000 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1001 usb_device_descriptor_t *dd = &dev->ud_ddesc; 1002 int confi, nifaces; 1003 usbd_status err; 1004 1005 /* First try with device specific drivers. */ 1006 DPRINTF("trying device specific drivers", 0, 0, 0, 0); 1007 err = usbd_attachwholedevice(parent, dev, port, 0); 1008 if (dev->ud_nifaces_claimed || err) 1009 return err; 1010 DPRINTF("no device specific driver found", 0, 0, 0, 0); 1011 1012 DPRINTF("looping over %jd configurations", dd->bNumConfigurations, 1013 0, 0, 0); 1014 for (confi = 0; confi < dd->bNumConfigurations; confi++) { 1015 DPRINTFN(1, "trying config idx=%jd", confi, 0, 0, 0); 1016 err = usbd_set_config_index(dev, confi, 1); 1017 if (err) { 1018 DPRINTF("port %jd, set config at addr %jd failed, " 1019 "error=%d", port, addr, err, 0); 1020 printf("%s: port %d, set config at addr %d failed\n", 1021 device_xname(parent), port, addr); 1022 return err; 1023 } 1024 nifaces = dev->ud_cdesc->bNumInterface; 1025 dev->ud_subdevs = kmem_zalloc(nifaces * sizeof(device_t), 1026 KM_SLEEP); 1027 if (dev->ud_subdevs == NULL) 1028 return USBD_NOMEM; 1029 dev->ud_subdevlen = nifaces; 1030 1031 err = usbd_attachinterfaces(parent, dev, port, NULL); 1032 1033 if (!dev->ud_nifaces_claimed) { 1034 kmem_free(dev->ud_subdevs, 1035 dev->ud_subdevlen * sizeof(device_t)); 1036 dev->ud_subdevs = 0; 1037 dev->ud_subdevlen = 0; 1038 } 1039 if (dev->ud_nifaces_claimed || err) 1040 return err; 1041 } 1042 /* No interfaces were attached in any of the configurations. */ 1043 1044 if (dd->bNumConfigurations > 1) /* don't change if only 1 config */ 1045 usbd_set_config_index(dev, 0, 0); 1046 1047 DPRINTF("no interface drivers found", 0, 0, 0, 0); 1048 1049 /* Finally try the generic driver. */ 1050 err = usbd_attachwholedevice(parent, dev, port, 1); 1051 1052 /* 1053 * The generic attach failed, but leave the device as it is. 1054 * We just did not find any drivers, that's all. The device is 1055 * fully operational and not harming anyone. 1056 */ 1057 DPRINTF("generic attach failed", 0, 0, 0, 0); 1058 1059 return USBD_NORMAL_COMPLETION; 1060 } 1061 1062 /** 1063 * Called from uhub_rescan(). usbd_new_device() for the target dev must be 1064 * called before calling this. 1065 */ 1066 usbd_status 1067 usbd_reattach_device(device_t parent, struct usbd_device *dev, 1068 int port, const int *locators) 1069 { 1070 int i, loc; 1071 1072 if (locators != NULL) { 1073 loc = locators[USBIFIFCF_PORT]; 1074 if (loc != USBIFIFCF_PORT_DEFAULT && loc != port) 1075 return USBD_NORMAL_COMPLETION; 1076 loc = locators[USBIFIFCF_VENDOR]; 1077 if (loc != USBIFIFCF_VENDOR_DEFAULT && 1078 loc != UGETW(dev->ud_ddesc.idVendor)) 1079 return USBD_NORMAL_COMPLETION; 1080 loc = locators[USBIFIFCF_PRODUCT]; 1081 if (loc != USBIFIFCF_PRODUCT_DEFAULT && 1082 loc != UGETW(dev->ud_ddesc.idProduct)) 1083 return USBD_NORMAL_COMPLETION; 1084 loc = locators[USBIFIFCF_RELEASE]; 1085 if (loc != USBIFIFCF_RELEASE_DEFAULT && 1086 loc != UGETW(dev->ud_ddesc.bcdDevice)) 1087 return USBD_NORMAL_COMPLETION; 1088 } 1089 if (dev->ud_subdevlen == 0) { 1090 /* XXX: check USBIFIFCF_CONFIGURATION and 1091 * USBIFIFCF_INTERFACE too */ 1092 return usbd_probe_and_attach(parent, dev, port, dev->ud_addr); 1093 } else if (dev->ud_subdevlen != dev->ud_cdesc->bNumInterface) { 1094 /* device-specific or generic driver is already attached. */ 1095 return USBD_NORMAL_COMPLETION; 1096 } 1097 /* Does the device have unconfigured interfaces? */ 1098 for (i = 0; i < dev->ud_subdevlen; i++) { 1099 if (dev->ud_subdevs[i] == NULL) { 1100 break; 1101 } 1102 } 1103 if (i >= dev->ud_subdevlen) 1104 return USBD_NORMAL_COMPLETION; 1105 return usbd_attachinterfaces(parent, dev, port, locators); 1106 } 1107 1108 /* 1109 * Get the first 8 bytes of the device descriptor. 1110 * Do as Windows does: try to read 64 bytes -- there are devices which 1111 * recognize the initial descriptor fetch (before the control endpoint's 1112 * MaxPacketSize is known by the host) by exactly this length. 1113 */ 1114 usbd_status 1115 usbd_get_initial_ddesc(struct usbd_device *dev, usb_device_descriptor_t *desc) 1116 { 1117 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1118 usb_device_request_t req; 1119 char buf[64]; 1120 int res, actlen; 1121 1122 DPRINTFN(5, "dev %#jx", (uintptr_t)dev, 0, 0, 0); 1123 1124 req.bmRequestType = UT_READ_DEVICE; 1125 req.bRequest = UR_GET_DESCRIPTOR; 1126 USETW2(req.wValue, UDESC_DEVICE, 0); 1127 USETW(req.wIndex, 0); 1128 USETW(req.wLength, 64); 1129 res = usbd_do_request_flags(dev, &req, buf, USBD_SHORT_XFER_OK, 1130 &actlen, USBD_DEFAULT_TIMEOUT); 1131 if (res) 1132 return res; 1133 if (actlen < 8) 1134 return USBD_SHORT_XFER; 1135 memcpy(desc, buf, 8); 1136 return USBD_NORMAL_COMPLETION; 1137 } 1138 1139 /* 1140 * Called when a new device has been put in the powered state, 1141 * but not yet in the addressed state. 1142 * Get initial descriptor, set the address, get full descriptor, 1143 * and attach a driver. 1144 */ 1145 usbd_status 1146 usbd_new_device(device_t parent, struct usbd_bus *bus, int depth, int speed, 1147 int port, struct usbd_port *up) 1148 { 1149 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1150 struct usbd_device *dev, *adev; 1151 struct usbd_device *hub; 1152 usb_device_descriptor_t *dd; 1153 usb_port_status_t ps; 1154 usbd_status err; 1155 int addr; 1156 int i; 1157 int p; 1158 1159 DPRINTF("bus=%#jx port=%jd depth=%jd speed=%jd", 1160 (uintptr_t)bus, port, depth, speed); 1161 1162 if (bus->ub_methods->ubm_newdev != NULL) 1163 return (bus->ub_methods->ubm_newdev)(parent, bus, depth, speed, 1164 port, up); 1165 1166 addr = usbd_getnewaddr(bus); 1167 if (addr < 0) { 1168 printf("%s: No free USB addresses, new device ignored.\n", 1169 device_xname(bus->ub_usbctl)); 1170 return USBD_NO_ADDR; 1171 } 1172 1173 dev = kmem_zalloc(sizeof(*dev), KM_SLEEP); 1174 dev->ud_bus = bus; 1175 1176 /* Set up default endpoint handle. */ 1177 dev->ud_ep0.ue_edesc = &dev->ud_ep0desc; 1178 1179 /* Set up default endpoint descriptor. */ 1180 dev->ud_ep0desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 1181 dev->ud_ep0desc.bDescriptorType = UDESC_ENDPOINT; 1182 dev->ud_ep0desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 1183 dev->ud_ep0desc.bmAttributes = UE_CONTROL; 1184 /* 1185 * temporary, will be fixed after first descriptor fetch 1186 * (which uses 64 bytes so it shouldn't be less), 1187 * highspeed devices must support 64 byte packets anyway 1188 */ 1189 if (speed == USB_SPEED_HIGH || speed == USB_SPEED_FULL) 1190 USETW(dev->ud_ep0desc.wMaxPacketSize, 64); 1191 else 1192 USETW(dev->ud_ep0desc.wMaxPacketSize, USB_MAX_IPACKET); 1193 1194 dev->ud_ep0desc.bInterval = 0; 1195 1196 /* doesn't matter, just don't leave it uninitialized */ 1197 dev->ud_ep0.ue_toggle = 0; 1198 1199 dev->ud_quirks = &usbd_no_quirk; 1200 dev->ud_addr = USB_START_ADDR; 1201 dev->ud_ddesc.bMaxPacketSize = 0; 1202 dev->ud_depth = depth; 1203 dev->ud_powersrc = up; 1204 dev->ud_myhub = up->up_parent; 1205 1206 up->up_dev = dev; 1207 1208 /* Locate port on upstream high speed hub */ 1209 for (adev = dev, hub = up->up_parent; 1210 hub != NULL && hub->ud_speed != USB_SPEED_HIGH; 1211 adev = hub, hub = hub->ud_myhub) 1212 ; 1213 if (hub) { 1214 for (p = 0; p < hub->ud_hub->uh_hubdesc.bNbrPorts; p++) { 1215 if (hub->ud_hub->uh_ports[p].up_dev == adev) { 1216 dev->ud_myhsport = &hub->ud_hub->uh_ports[p]; 1217 goto found; 1218 } 1219 } 1220 panic("usbd_new_device: cannot find HS port"); 1221 found: 1222 DPRINTFN(1, "high speed port %jd", p, 0, 0, 0); 1223 } else { 1224 dev->ud_myhsport = NULL; 1225 } 1226 dev->ud_speed = speed; 1227 dev->ud_langid = USBD_NOLANG; 1228 dev->ud_cookie.cookie = ++usb_cookie_no; 1229 1230 /* Establish the default pipe. */ 1231 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1232 &dev->ud_pipe0, USBD_MPSAFE); 1233 if (err) { 1234 usbd_remove_device(dev, up); 1235 return err; 1236 } 1237 1238 dd = &dev->ud_ddesc; 1239 /* Try a few times in case the device is slow (i.e. outside specs.) */ 1240 for (i = 0; i < 10; i++) { 1241 /* Get the first 8 bytes of the device descriptor. */ 1242 err = usbd_get_initial_ddesc(dev, dd); 1243 if (!err) 1244 break; 1245 /* 1246 * The root hub can never fail to give the initial descriptor, 1247 * but assert it just in case. 1248 */ 1249 KASSERT(up->up_parent); 1250 usbd_delay_ms(dev, 200); 1251 if ((i & 3) == 3) 1252 usbd_reset_port(up->up_parent, port, &ps); 1253 } 1254 if (err) { 1255 DPRINTF("addr=%jd, getting first desc failed: %jd", addr, err, 1256 0, 0); 1257 usbd_remove_device(dev, up); 1258 return err; 1259 } 1260 1261 /* Windows resets the port here, do likewise */ 1262 if (up->up_parent) 1263 usbd_reset_port(up->up_parent, port, &ps); 1264 1265 if (speed == USB_SPEED_HIGH) { 1266 /* Max packet size must be 64 (sec 5.5.3). */ 1267 if (dd->bMaxPacketSize != USB_2_MAX_CTRL_PACKET) { 1268 #ifdef DIAGNOSTIC 1269 printf("usbd_new_device: addr=%d bad max packet " 1270 "size=%d. adjusting to %d.\n", 1271 addr, dd->bMaxPacketSize, USB_2_MAX_CTRL_PACKET); 1272 #endif 1273 dd->bMaxPacketSize = USB_2_MAX_CTRL_PACKET; 1274 } 1275 } 1276 1277 DPRINTF("adding unit addr=%jd, rev=%02jx, class=%jd, subclass=%jd", 1278 addr, UGETW(dd->bcdUSB), dd->bDeviceClass, dd->bDeviceSubClass); 1279 DPRINTF("protocol=%jd, maxpacket=%jd, len=%jd, speed=%jd", 1280 dd->bDeviceProtocol, dd->bMaxPacketSize, dd->bLength, dev->ud_speed); 1281 1282 if (dd->bDescriptorType != UDESC_DEVICE) { 1283 /* Illegal device descriptor */ 1284 DPRINTF("illegal descriptor %jd", dd->bDescriptorType, 0, 0, 0); 1285 usbd_remove_device(dev, up); 1286 return USBD_INVAL; 1287 } 1288 1289 if (dd->bLength < USB_DEVICE_DESCRIPTOR_SIZE) { 1290 DPRINTF("bad length %jd", dd->bLength, 0, 0, 0); 1291 usbd_remove_device(dev, up); 1292 return USBD_INVAL; 1293 } 1294 1295 USETW(dev->ud_ep0desc.wMaxPacketSize, dd->bMaxPacketSize); 1296 1297 /* Re-establish the default pipe with the new MPS. */ 1298 usbd_kill_pipe(dev->ud_pipe0); 1299 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1300 &dev->ud_pipe0, USBD_MPSAFE); 1301 if (err) { 1302 DPRINTF("setup default pipe failed err %jd", err, 0, 0, 0); 1303 usbd_remove_device(dev, up); 1304 return err; 1305 } 1306 1307 /* Set the address */ 1308 DPRINTFN(5, "setting device address=%jd", addr, 0, 0, 0); 1309 err = usbd_set_address(dev, addr); 1310 if (err) { 1311 DPRINTF("set address %jd failed, err = %jd", addr, err, 0, 0); 1312 err = USBD_SET_ADDR_FAILED; 1313 usbd_remove_device(dev, up); 1314 return err; 1315 } 1316 1317 /* Allow device time to set new address */ 1318 usbd_delay_ms(dev, USB_SET_ADDRESS_SETTLE); 1319 dev->ud_addr = addr; /* new device address now */ 1320 bus->ub_devices[usb_addr2dindex(addr)] = dev; 1321 1322 /* Re-establish the default pipe with the new address. */ 1323 usbd_kill_pipe(dev->ud_pipe0); 1324 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1325 &dev->ud_pipe0, USBD_MPSAFE); 1326 if (err) { 1327 DPRINTF("setup default pipe failed, err = %jd", err, 0, 0, 0); 1328 usbd_remove_device(dev, up); 1329 return err; 1330 } 1331 1332 err = usbd_reload_device_desc(dev); 1333 if (err) { 1334 DPRINTF("addr=%jd, getting full desc failed, err = %jd", addr, 1335 err, 0, 0); 1336 usbd_remove_device(dev, up); 1337 return err; 1338 } 1339 1340 /* Assume 100mA bus powered for now. Changed when configured. */ 1341 dev->ud_power = USB_MIN_POWER; 1342 dev->ud_selfpowered = 0; 1343 1344 DPRINTF("new dev (addr %jd), dev=%#jx, parent=%#jx", 1345 addr, (uintptr_t)dev, (uintptr_t)parent, 0); 1346 1347 usbd_get_device_strings(dev); 1348 1349 usbd_add_dev_event(USB_EVENT_DEVICE_ATTACH, dev); 1350 1351 if (port == 0) { /* root hub */ 1352 KASSERT(addr == 1); 1353 usbd_attach_roothub(parent, dev); 1354 return USBD_NORMAL_COMPLETION; 1355 } 1356 1357 err = usbd_probe_and_attach(parent, dev, port, addr); 1358 if (err) { 1359 usbd_remove_device(dev, up); 1360 return err; 1361 } 1362 1363 return USBD_NORMAL_COMPLETION; 1364 } 1365 1366 usbd_status 1367 usbd_reload_device_desc(struct usbd_device *dev) 1368 { 1369 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1370 usb_device_descriptor_t *udd = &dev->ud_ddesc; 1371 usbd_status err; 1372 1373 /* Get the full device descriptor. */ 1374 err = usbd_get_device_desc(dev, udd); 1375 if (err) 1376 return err; 1377 1378 DPRINTFN(15, "bLength %5ju", udd->bLength, 0, 0, 0); 1379 DPRINTFN(15, "bDescriptorType %5ju", udd->bDescriptorType, 0, 0, 0); 1380 DPRINTFN(15, "bcdUSB %2jx.%02jx", udd->bcdUSB[1], 1381 udd->bcdUSB[0], 0, 0); 1382 DPRINTFN(15, "bDeviceClass %5ju", udd->bDeviceClass, 0, 0, 0); 1383 DPRINTFN(15, "bDeviceSubClass %5ju", udd->bDeviceSubClass, 0, 0, 0); 1384 DPRINTFN(15, "bDeviceProtocol %5ju", udd->bDeviceProtocol, 0, 0, 0); 1385 DPRINTFN(15, "bMaxPacketSize0 %5ju", udd->bMaxPacketSize, 0, 0, 0); 1386 DPRINTFN(15, "idVendor %#02jx %#02jx", 1387 udd->idVendor[0], 1388 udd->idVendor[1], 0, 0); 1389 DPRINTFN(15, "idProduct %#02jx %#02jx", 1390 udd->idProduct[0], 1391 udd->idProduct[1], 0, 0); 1392 DPRINTFN(15, "bcdDevice %2jx.%02jx", udd->bcdDevice[1], 1393 udd->bcdDevice[0], 0, 0); 1394 DPRINTFN(15, "iManufacturer %5ju", udd->iManufacturer, 0, 0, 0); 1395 DPRINTFN(15, "iProduct %5ju", udd->iProduct, 0, 0, 0); 1396 DPRINTFN(15, "iSerial %5ju", udd->iSerialNumber, 0, 0, 0); 1397 DPRINTFN(15, "bNumConfigurations %5ju", udd->bNumConfigurations, 0, 0, 1398 0); 1399 1400 /* Figure out what's wrong with this device. */ 1401 dev->ud_quirks = usbd_find_quirk(udd); 1402 1403 return USBD_NORMAL_COMPLETION; 1404 } 1405 1406 void 1407 usbd_remove_device(struct usbd_device *dev, struct usbd_port *up) 1408 { 1409 1410 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1411 1412 DPRINTF("dev %#jx up %#jx", (uintptr_t)dev, (uintptr_t)up, 0, 0); 1413 1414 if (dev->ud_pipe0 != NULL) 1415 usbd_kill_pipe(dev->ud_pipe0); 1416 up->up_dev = NULL; 1417 dev->ud_bus->ub_devices[usb_addr2dindex(dev->ud_addr)] = NULL; 1418 1419 kmem_free(dev, sizeof(*dev)); 1420 } 1421 1422 int 1423 usbd_print(void *aux, const char *pnp) 1424 { 1425 struct usb_attach_arg *uaa = aux; 1426 1427 if (pnp) { 1428 #define USB_DEVINFO 1024 1429 char *devinfo; 1430 if (!uaa->uaa_usegeneric) 1431 return QUIET; 1432 devinfo = kmem_alloc(USB_DEVINFO, KM_SLEEP); 1433 usbd_devinfo(uaa->uaa_device, 1, devinfo, USB_DEVINFO); 1434 aprint_normal("%s, %s", devinfo, pnp); 1435 kmem_free(devinfo, USB_DEVINFO); 1436 } 1437 aprint_normal(" port %d", uaa->uaa_port); 1438 #if 0 1439 /* 1440 * It gets very crowded with these locators on the attach line. 1441 * They are not really needed since they are printed in the clear 1442 * by each driver. 1443 */ 1444 if (uaa->uaa_vendor != UHUB_UNK_VENDOR) 1445 aprint_normal(" vendor %#04x", uaa->uaa_vendor); 1446 if (uaa->uaa_product != UHUB_UNK_PRODUCT) 1447 aprint_normal(" product %#04x", uaa->uaa_product); 1448 if (uaa->uaa_release != UHUB_UNK_RELEASE) 1449 aprint_normal(" release %#04x", uaa->uaa_release); 1450 #endif 1451 return UNCONF; 1452 } 1453 1454 int 1455 usbd_ifprint(void *aux, const char *pnp) 1456 { 1457 struct usbif_attach_arg *uiaa = aux; 1458 1459 if (pnp) 1460 return QUIET; 1461 aprint_normal(" port %d", uiaa->uiaa_port); 1462 aprint_normal(" configuration %d", uiaa->uiaa_configno); 1463 aprint_normal(" interface %d", uiaa->uiaa_ifaceno); 1464 #if 0 1465 /* 1466 * It gets very crowded with these locators on the attach line. 1467 * They are not really needed since they are printed in the clear 1468 * by each driver. 1469 */ 1470 if (uaa->uaa_vendor != UHUB_UNK_VENDOR) 1471 aprint_normal(" vendor %#04x", uaa->uaa_vendor); 1472 if (uaa->uaa_product != UHUB_UNK_PRODUCT) 1473 aprint_normal(" product %#04x", uaa->uaa_product); 1474 if (uaa->uaa_release != UHUB_UNK_RELEASE) 1475 aprint_normal(" release %#04x", uaa->uaa_release); 1476 #endif 1477 return UNCONF; 1478 } 1479 1480 void 1481 usbd_fill_deviceinfo(struct usbd_device *dev, struct usb_device_info *di, 1482 int usedev) 1483 { 1484 struct usbd_port *p; 1485 int i, j, err; 1486 1487 di->udi_bus = device_unit(dev->ud_bus->ub_usbctl); 1488 di->udi_addr = dev->ud_addr; 1489 di->udi_cookie = dev->ud_cookie; 1490 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1491 di->udi_product, sizeof(di->udi_product), usedev, 1); 1492 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1493 UGETW(dev->ud_ddesc.bcdDevice)); 1494 if (usedev) { 1495 usbd_status uerr = usbd_get_string(dev, 1496 dev->ud_ddesc.iSerialNumber, di->udi_serial); 1497 if (uerr != USBD_NORMAL_COMPLETION) { 1498 di->udi_serial[0] = '\0'; 1499 } else { 1500 usbd_trim_spaces(di->udi_serial); 1501 } 1502 } else { 1503 di->udi_serial[0] = '\0'; 1504 if (dev->ud_serial) { 1505 strlcpy(di->udi_serial, dev->ud_serial, 1506 sizeof(di->udi_serial)); 1507 } 1508 } 1509 1510 di->udi_vendorNo = UGETW(dev->ud_ddesc.idVendor); 1511 di->udi_productNo = UGETW(dev->ud_ddesc.idProduct); 1512 di->udi_releaseNo = UGETW(dev->ud_ddesc.bcdDevice); 1513 di->udi_class = dev->ud_ddesc.bDeviceClass; 1514 di->udi_subclass = dev->ud_ddesc.bDeviceSubClass; 1515 di->udi_protocol = dev->ud_ddesc.bDeviceProtocol; 1516 di->udi_config = dev->ud_config; 1517 di->udi_power = dev->ud_selfpowered ? 0 : dev->ud_power; 1518 di->udi_speed = dev->ud_speed; 1519 1520 if (dev->ud_subdevlen > 0) { 1521 for (i = 0, j = 0; i < dev->ud_subdevlen && 1522 j < USB_MAX_DEVNAMES; i++) { 1523 if (!dev->ud_subdevs[i]) 1524 continue; 1525 strncpy(di->udi_devnames[j], 1526 device_xname(dev->ud_subdevs[i]), USB_MAX_DEVNAMELEN); 1527 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1528 j++; 1529 } 1530 } else { 1531 j = 0; 1532 } 1533 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1534 di->udi_devnames[j][0] = 0; /* empty */ 1535 1536 if (!dev->ud_hub) { 1537 di->udi_nports = 0; 1538 return; 1539 } 1540 1541 const int nports = dev->ud_hub->uh_hubdesc.bNbrPorts; 1542 for (i = 0; i < __arraycount(di->udi_ports) && i < nports; i++) { 1543 p = &dev->ud_hub->uh_ports[i]; 1544 if (p->up_dev) 1545 err = p->up_dev->ud_addr; 1546 else { 1547 const int s = UGETW(p->up_status.wPortStatus); 1548 const bool sshub_p = USB_IS_SS(dev->ud_speed); 1549 if (s & UPS_PORT_ENABLED) 1550 err = USB_PORT_ENABLED; 1551 else if (s & UPS_SUSPEND) 1552 err = USB_PORT_SUSPENDED; 1553 /* 1554 * Note: UPS_PORT_POWER_SS is available only 1555 * on 3.x, and UPS_PORT_POWER is available 1556 * only on 2.0 or 1.1. 1557 */ 1558 else if (sshub_p && (s & UPS_PORT_POWER_SS)) 1559 err = USB_PORT_POWERED; 1560 else if (!sshub_p && (s & UPS_PORT_POWER)) 1561 err = USB_PORT_POWERED; 1562 else 1563 err = USB_PORT_DISABLED; 1564 } 1565 di->udi_ports[i] = err; 1566 } 1567 di->udi_nports = nports; 1568 } 1569 1570 #ifdef COMPAT_30 1571 void 1572 usbd_fill_deviceinfo_old(struct usbd_device *dev, struct usb_device_info_old *di, 1573 int usedev) 1574 { 1575 struct usbd_port *p; 1576 int i, j, err; 1577 1578 di->udi_bus = device_unit(dev->ud_bus->ub_usbctl); 1579 di->udi_addr = dev->ud_addr; 1580 di->udi_cookie = dev->ud_cookie; 1581 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1582 di->udi_product, sizeof(di->udi_product), usedev, 0); 1583 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1584 UGETW(dev->ud_ddesc.bcdDevice)); 1585 di->udi_vendorNo = UGETW(dev->ud_ddesc.idVendor); 1586 di->udi_productNo = UGETW(dev->ud_ddesc.idProduct); 1587 di->udi_releaseNo = UGETW(dev->ud_ddesc.bcdDevice); 1588 di->udi_class = dev->ud_ddesc.bDeviceClass; 1589 di->udi_subclass = dev->ud_ddesc.bDeviceSubClass; 1590 di->udi_protocol = dev->ud_ddesc.bDeviceProtocol; 1591 di->udi_config = dev->ud_config; 1592 di->udi_power = dev->ud_selfpowered ? 0 : dev->ud_power; 1593 di->udi_speed = dev->ud_speed; 1594 1595 if (dev->ud_subdevlen > 0) { 1596 for (i = 0, j = 0; i < dev->ud_subdevlen && 1597 j < USB_MAX_DEVNAMES; i++) { 1598 if (!dev->ud_subdevs[i]) 1599 continue; 1600 strncpy(di->udi_devnames[j], 1601 device_xname(dev->ud_subdevs[i]), USB_MAX_DEVNAMELEN); 1602 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1603 j++; 1604 } 1605 } else { 1606 j = 0; 1607 } 1608 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1609 di->udi_devnames[j][0] = 0; /* empty */ 1610 1611 if (!dev->ud_hub) { 1612 di->udi_nports = 0; 1613 return; 1614 } 1615 1616 const int nports = dev->ud_hub->uh_hubdesc.bNbrPorts; 1617 for (i = 0; i < __arraycount(di->udi_ports) && i < nports; 1618 i++) { 1619 p = &dev->ud_hub->uh_ports[i]; 1620 if (p->up_dev) 1621 err = p->up_dev->ud_addr; 1622 else { 1623 const int s = UGETW(p->up_status.wPortStatus); 1624 if (s & UPS_PORT_ENABLED) 1625 err = USB_PORT_ENABLED; 1626 else if (s & UPS_SUSPEND) 1627 err = USB_PORT_SUSPENDED; 1628 else if (s & UPS_PORT_POWER) 1629 err = USB_PORT_POWERED; 1630 else 1631 err = USB_PORT_DISABLED; 1632 } 1633 di->udi_ports[i] = err; 1634 } 1635 di->udi_nports = nports; 1636 } 1637 #endif 1638 1639 1640 void 1641 usb_free_device(struct usbd_device *dev) 1642 { 1643 int ifcidx, nifc; 1644 1645 if (dev->ud_pipe0 != NULL) 1646 usbd_kill_pipe(dev->ud_pipe0); 1647 if (dev->ud_ifaces != NULL) { 1648 nifc = dev->ud_cdesc->bNumInterface; 1649 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 1650 usbd_free_iface_data(dev, ifcidx); 1651 kmem_free(dev->ud_ifaces, 1652 nifc * sizeof(struct usbd_interface)); 1653 } 1654 if (dev->ud_cdesc != NULL) 1655 kmem_free(dev->ud_cdesc, UGETW(dev->ud_cdesc->wTotalLength)); 1656 if (dev->ud_bdesc != NULL) 1657 kmem_free(dev->ud_bdesc, UGETW(dev->ud_bdesc->wTotalLength)); 1658 if (dev->ud_subdevlen > 0) { 1659 kmem_free(dev->ud_subdevs, 1660 dev->ud_subdevlen * sizeof(device_t)); 1661 dev->ud_subdevlen = 0; 1662 } 1663 if (dev->ud_vendor) { 1664 kmem_free(dev->ud_vendor, USB_MAX_ENCODED_STRING_LEN); 1665 } 1666 if (dev->ud_product) { 1667 kmem_free(dev->ud_product, USB_MAX_ENCODED_STRING_LEN); 1668 } 1669 if (dev->ud_serial) { 1670 kmem_free(dev->ud_serial, USB_MAX_ENCODED_STRING_LEN); 1671 } 1672 kmem_free(dev, sizeof(*dev)); 1673 } 1674 1675 /* 1676 * The general mechanism for detaching drivers works as follows: Each 1677 * driver is responsible for maintaining a reference count on the 1678 * number of outstanding references to its softc (e.g. from 1679 * processing hanging in a read or write). The detach method of the 1680 * driver decrements this counter and flags in the softc that the 1681 * driver is dying and then wakes any sleepers. It then sleeps on the 1682 * softc. Each place that can sleep must maintain the reference 1683 * count. When the reference count drops to -1 (0 is the normal value 1684 * of the reference count) the a wakeup on the softc is performed 1685 * signaling to the detach waiter that all references are gone. 1686 */ 1687 1688 /* 1689 * Called from process context when we discover that a port has 1690 * been disconnected. 1691 */ 1692 int 1693 usb_disconnect_port(struct usbd_port *up, device_t parent, int flags) 1694 { 1695 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1696 struct usbd_device *dev = up->up_dev; 1697 device_t subdev; 1698 char subdevname[16]; 1699 const char *hubname = device_xname(parent); 1700 int i, rc; 1701 1702 DPRINTFN(3, "up=%#jx dev=%#jx port=%jd", (uintptr_t)up, (uintptr_t)dev, 1703 up->up_portno, 0); 1704 1705 if (dev == NULL) { 1706 return 0; 1707 } 1708 1709 if (dev->ud_subdevlen > 0) { 1710 DPRINTFN(3, "disconnect subdevs", 0, 0, 0, 0); 1711 for (i = 0; i < dev->ud_subdevlen; i++) { 1712 if ((subdev = dev->ud_subdevs[i]) == NULL) 1713 continue; 1714 strlcpy(subdevname, device_xname(subdev), 1715 sizeof(subdevname)); 1716 if ((rc = config_detach(subdev, flags)) != 0) 1717 return rc; 1718 printf("%s: at %s", subdevname, hubname); 1719 if (up->up_portno != 0) 1720 printf(" port %d", up->up_portno); 1721 printf(" (addr %d) disconnected\n", dev->ud_addr); 1722 } 1723 KASSERT(!dev->ud_nifaces_claimed); 1724 } 1725 1726 mutex_enter(dev->ud_bus->ub_lock); 1727 dev->ud_bus->ub_devices[usb_addr2dindex(dev->ud_addr)] = NULL; 1728 up->up_dev = NULL; 1729 mutex_exit(dev->ud_bus->ub_lock); 1730 1731 usbd_add_dev_event(USB_EVENT_DEVICE_DETACH, dev); 1732 1733 usb_free_device(dev); 1734 1735 return 0; 1736 } 1737