1 /* $NetBSD: usb_subr.c,v 1.223 2017/12/26 18:44:52 khorben 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 1.223 2017/12/26 18:44:52 khorben 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 if (len == 0) { 613 DPRINTF("empty short descriptor", 0, 0, 0, 0); 614 return USBD_INVAL; 615 } 616 cdp = kmem_alloc(len, KM_SLEEP); 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=%jd", err, 0, 0, 0); 627 goto bad; 628 } 629 if (cdp->bDescriptorType != UDESC_CONFIG) { 630 DPRINTF("bad desc %jd", 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 if (blen == 0) { 643 DPRINTF("empty bos descriptor", 0, 0, 0, 0); 644 err = USBD_INVAL; 645 goto bad; 646 } 647 bdp = kmem_alloc(blen, KM_SLEEP); 648 649 /* Get the full desc */ 650 for (i = 0; i < 3; i++) { 651 err = usbd_get_desc(dev, UDESC_BOS, index, blen, 652 bdp); 653 if (!err) 654 break; 655 usbd_delay_ms(dev, 200); 656 } 657 if (err || bdp->bDescriptorType != UDESC_BOS) { 658 DPRINTF("error %jd or bad desc %jd", err, 659 bdp->bDescriptorType, 0, 0); 660 kmem_free(bdp, blen); 661 bdp = NULL; 662 } 663 } 664 } 665 dev->ud_bdesc = bdp; 666 667 /* 668 * Figure out if the device is self or bus powered. 669 */ 670 #if 0 /* XXX various devices don't report the power state correctly */ 671 selfpowered = 0; 672 err = usbd_get_device_status(dev, &ds); 673 if (!err && (UGETW(ds.wStatus) & UDS_SELF_POWERED)) 674 selfpowered = 1; 675 #endif 676 /* 677 * Use the power state in the configuration we are going 678 * to set. This doesn't necessarily reflect the actual 679 * power state of the device; the driver can control this 680 * by choosing the appropriate configuration. 681 */ 682 selfpowered = !!(cdp->bmAttributes & UC_SELF_POWERED); 683 684 DPRINTF("addr %jd cno=%jd attr=%#02jx, selfpowered=%jd", 685 dev->ud_addr, cdp->bConfigurationValue, cdp->bmAttributes, 686 selfpowered); 687 DPRINTF("max power=%jd", cdp->bMaxPower * 2, 0, 0, 0); 688 689 /* Check if we have enough power. */ 690 #if 0 /* this is a no-op, see above */ 691 if ((cdp->bmAttributes & UC_SELF_POWERED) && !selfpowered) { 692 if (msg) 693 printf("%s: device addr %d (config %d): " 694 "can't set self powered configuration\n", 695 device_xname(dev->ud_bus->bdev), dev->ud_addr, 696 cdp->bConfigurationValue); 697 err = USBD_NO_POWER; 698 goto bad; 699 } 700 #endif 701 #ifdef USB_DEBUG 702 if (dev->ud_powersrc == NULL) { 703 DPRINTF("No power source?", 0, 0, 0, 0); 704 err = USBD_IOERROR; 705 goto bad; 706 } 707 #endif 708 power = cdp->bMaxPower * 2; 709 if (power > dev->ud_powersrc->up_power) { 710 DPRINTF("power exceeded %jd %jd", power, 711 dev->ud_powersrc->up_power, 0, 0); 712 /* XXX print nicer message. */ 713 if (msg) 714 printf("%s: device addr %d (config %d) exceeds power " 715 "budget, %d mA > %d mA\n", 716 device_xname(dev->ud_bus->ub_usbctl), dev->ud_addr, 717 cdp->bConfigurationValue, 718 power, dev->ud_powersrc->up_power); 719 err = USBD_NO_POWER; 720 goto bad; 721 } 722 dev->ud_power = power; 723 dev->ud_selfpowered = selfpowered; 724 725 /* Set the actual configuration value. */ 726 DPRINTF("set config %jd", cdp->bConfigurationValue, 0, 0, 0); 727 err = usbd_set_config(dev, cdp->bConfigurationValue); 728 if (err) { 729 DPRINTF("setting config=%jd failed, error=%jd", 730 cdp->bConfigurationValue, err, 0, 0); 731 goto bad; 732 } 733 734 /* Allocate and fill interface data. */ 735 nifc = cdp->bNumInterface; 736 if (nifc == 0) { 737 DPRINTF("no interfaces", 0, 0, 0, 0); 738 err = USBD_INVAL; 739 goto bad; 740 } 741 dev->ud_ifaces = kmem_alloc(nifc * sizeof(struct usbd_interface), 742 KM_SLEEP); 743 DPRINTFN(5, "dev=%#jx cdesc=%#jx", (uintptr_t)dev, (uintptr_t)cdp, 744 0, 0); 745 dev->ud_cdesc = cdp; 746 dev->ud_config = cdp->bConfigurationValue; 747 for (ifcidx = 0; ifcidx < nifc; ifcidx++) { 748 err = usbd_fill_iface_data(dev, ifcidx, 0); 749 if (err) { 750 while (--ifcidx >= 0) 751 usbd_free_iface_data(dev, ifcidx); 752 goto bad; 753 } 754 } 755 756 return USBD_NORMAL_COMPLETION; 757 758 bad: 759 kmem_free(cdp, len); 760 if (bdp != NULL) { 761 kmem_free(bdp, UGETW(bdp->wTotalLength)); 762 dev->ud_bdesc = NULL; 763 } 764 return err; 765 } 766 767 /* XXX add function for alternate settings */ 768 769 usbd_status 770 usbd_setup_pipe(struct usbd_device *dev, struct usbd_interface *iface, 771 struct usbd_endpoint *ep, int ival, struct usbd_pipe **pipe) 772 { 773 return usbd_setup_pipe_flags(dev, iface, ep, ival, pipe, 0); 774 } 775 776 usbd_status 777 usbd_setup_pipe_flags(struct usbd_device *dev, struct usbd_interface *iface, 778 struct usbd_endpoint *ep, int ival, struct usbd_pipe **pipe, uint8_t flags) 779 { 780 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 781 struct usbd_pipe *p; 782 usbd_status err; 783 784 p = kmem_alloc(dev->ud_bus->ub_pipesize, KM_SLEEP); 785 DPRINTFN(1, "dev=%#jx addr=%jd iface=%#jx ep=%#jx", 786 (uintptr_t)dev, dev->ud_addr, (uintptr_t)iface, (uintptr_t)ep); 787 DPRINTFN(1, "pipe=%#jx", (uintptr_t)p, 0, 0, 0); 788 p->up_dev = dev; 789 p->up_iface = iface; 790 p->up_endpoint = ep; 791 ep->ue_refcnt++; 792 p->up_intrxfer = NULL; 793 p->up_running = 0; 794 p->up_aborting = 0; 795 p->up_serialise = true; 796 p->up_repeat = 0; 797 p->up_interval = ival; 798 p->up_flags = flags; 799 p->up_serialise = true; 800 SIMPLEQ_INIT(&p->up_queue); 801 err = dev->ud_bus->ub_methods->ubm_open(p); 802 if (err) { 803 DPRINTF("endpoint=%#jx failed, error=%jd", 804 (uintptr_t)ep->ue_edesc->bEndpointAddress, err, 0, 0); 805 kmem_free(p, dev->ud_bus->ub_pipesize); 806 return err; 807 } 808 809 KASSERT(p->up_methods->upm_start || p->up_serialise == false); 810 811 usb_init_task(&p->up_async_task, usbd_clear_endpoint_stall_task, p, 812 USB_TASKQ_MPSAFE); 813 DPRINTFN(1, "pipe=%#jx", (uintptr_t)p, 0, 0, 0); 814 *pipe = p; 815 return USBD_NORMAL_COMPLETION; 816 } 817 818 /* Abort the device control pipe. */ 819 void 820 usbd_kill_pipe(struct usbd_pipe *pipe) 821 { 822 usbd_abort_pipe(pipe); 823 usbd_lock_pipe(pipe); 824 pipe->up_methods->upm_close(pipe); 825 usbd_unlock_pipe(pipe); 826 usb_rem_task(pipe->up_dev, &pipe->up_async_task); 827 pipe->up_endpoint->ue_refcnt--; 828 kmem_free(pipe, pipe->up_dev->ud_bus->ub_pipesize); 829 } 830 831 int 832 usbd_getnewaddr(struct usbd_bus *bus) 833 { 834 int addr; 835 836 for (addr = 1; addr < USB_MAX_DEVICES; addr++) { 837 size_t dindex = usb_addr2dindex(addr); 838 if (bus->ub_devices[dindex] == NULL) 839 return addr; 840 } 841 return -1; 842 } 843 844 usbd_status 845 usbd_attach_roothub(device_t parent, struct usbd_device *dev) 846 { 847 struct usb_attach_arg uaa; 848 usb_device_descriptor_t *dd = &dev->ud_ddesc; 849 device_t dv; 850 851 uaa.uaa_device = dev; 852 uaa.uaa_usegeneric = 0; 853 uaa.uaa_port = 0; 854 uaa.uaa_vendor = UGETW(dd->idVendor); 855 uaa.uaa_product = UGETW(dd->idProduct); 856 uaa.uaa_release = UGETW(dd->bcdDevice); 857 uaa.uaa_class = dd->bDeviceClass; 858 uaa.uaa_subclass = dd->bDeviceSubClass; 859 uaa.uaa_proto = dd->bDeviceProtocol; 860 861 dv = config_found_ia(parent, "usbroothubif", &uaa, 0); 862 if (dv) { 863 dev->ud_subdevs = kmem_alloc(sizeof(dv), KM_SLEEP); 864 dev->ud_subdevs[0] = dv; 865 dev->ud_subdevlen = 1; 866 } 867 return USBD_NORMAL_COMPLETION; 868 } 869 870 static void 871 usbd_serialnumber(device_t dv, struct usbd_device *dev) 872 { 873 if (dev->ud_serial) { 874 prop_dictionary_set_cstring(device_properties(dv), 875 "serialnumber", dev->ud_serial); 876 } 877 } 878 879 static usbd_status 880 usbd_attachwholedevice(device_t parent, struct usbd_device *dev, int port, 881 int usegeneric) 882 { 883 struct usb_attach_arg uaa; 884 usb_device_descriptor_t *dd = &dev->ud_ddesc; 885 device_t dv; 886 int dlocs[USBDEVIFCF_NLOCS]; 887 888 uaa.uaa_device = dev; 889 uaa.uaa_usegeneric = usegeneric; 890 uaa.uaa_port = port; 891 uaa.uaa_vendor = UGETW(dd->idVendor); 892 uaa.uaa_product = UGETW(dd->idProduct); 893 uaa.uaa_release = UGETW(dd->bcdDevice); 894 uaa.uaa_class = dd->bDeviceClass; 895 uaa.uaa_subclass = dd->bDeviceSubClass; 896 uaa.uaa_proto = dd->bDeviceProtocol; 897 898 dlocs[USBDEVIFCF_PORT] = uaa.uaa_port; 899 dlocs[USBDEVIFCF_VENDOR] = uaa.uaa_vendor; 900 dlocs[USBDEVIFCF_PRODUCT] = uaa.uaa_product; 901 dlocs[USBDEVIFCF_RELEASE] = uaa.uaa_release; 902 /* the rest is historical ballast */ 903 dlocs[USBDEVIFCF_CONFIGURATION] = -1; 904 dlocs[USBDEVIFCF_INTERFACE] = -1; 905 906 KERNEL_LOCK(1, NULL); 907 dv = config_found_sm_loc(parent, "usbdevif", dlocs, &uaa, usbd_print, 908 config_stdsubmatch); 909 KERNEL_UNLOCK_ONE(NULL); 910 if (dv) { 911 dev->ud_subdevs = kmem_alloc(sizeof(dv), KM_SLEEP); 912 dev->ud_subdevs[0] = dv; 913 dev->ud_subdevlen = 1; 914 dev->ud_nifaces_claimed = 1; /* XXX */ 915 usbd_serialnumber(dv, dev); 916 } 917 return USBD_NORMAL_COMPLETION; 918 } 919 920 static usbd_status 921 usbd_attachinterfaces(device_t parent, struct usbd_device *dev, 922 int port, const int *locators) 923 { 924 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 925 struct usbif_attach_arg uiaa; 926 int ilocs[USBIFIFCF_NLOCS]; 927 usb_device_descriptor_t *dd = &dev->ud_ddesc; 928 int nifaces; 929 struct usbd_interface **ifaces; 930 int i, j, loc; 931 device_t dv; 932 933 nifaces = dev->ud_cdesc->bNumInterface; 934 ifaces = kmem_zalloc(nifaces * sizeof(*ifaces), KM_SLEEP); 935 for (i = 0; i < nifaces; i++) { 936 if (!dev->ud_subdevs[i]) { 937 ifaces[i] = &dev->ud_ifaces[i]; 938 } 939 DPRINTF("interface %jd %#jx", i, (uintptr_t)ifaces[i], 0, 0); 940 } 941 942 943 uiaa.uiaa_device = dev; 944 uiaa.uiaa_port = port; 945 uiaa.uiaa_vendor = UGETW(dd->idVendor); 946 uiaa.uiaa_product = UGETW(dd->idProduct); 947 uiaa.uiaa_release = UGETW(dd->bcdDevice); 948 uiaa.uiaa_configno = dev->ud_cdesc->bConfigurationValue; 949 uiaa.uiaa_ifaces = ifaces; 950 uiaa.uiaa_nifaces = nifaces; 951 ilocs[USBIFIFCF_PORT] = uiaa.uiaa_port; 952 ilocs[USBIFIFCF_VENDOR] = uiaa.uiaa_vendor; 953 ilocs[USBIFIFCF_PRODUCT] = uiaa.uiaa_product; 954 ilocs[USBIFIFCF_RELEASE] = uiaa.uiaa_release; 955 ilocs[USBIFIFCF_CONFIGURATION] = uiaa.uiaa_configno; 956 957 for (i = 0; i < nifaces; i++) { 958 if (!ifaces[i]) { 959 DPRINTF("interface %jd claimed", i, 0, 0, 0); 960 continue; /* interface already claimed */ 961 } 962 uiaa.uiaa_iface = ifaces[i]; 963 uiaa.uiaa_class = ifaces[i]->ui_idesc->bInterfaceClass; 964 uiaa.uiaa_subclass = ifaces[i]->ui_idesc->bInterfaceSubClass; 965 uiaa.uiaa_proto = ifaces[i]->ui_idesc->bInterfaceProtocol; 966 uiaa.uiaa_ifaceno = ifaces[i]->ui_idesc->bInterfaceNumber; 967 968 DPRINTF("searching for interface %jd...", i, 0, 0, 0); 969 DPRINTF("class %jx subclass %jx proto %jx ifaceno %jd", 970 uiaa.uiaa_class, uiaa.uiaa_subclass, uiaa.uiaa_proto, 971 uiaa.uiaa_ifaceno); 972 ilocs[USBIFIFCF_INTERFACE] = uiaa.uiaa_ifaceno; 973 if (locators != NULL) { 974 loc = locators[USBIFIFCF_CONFIGURATION]; 975 if (loc != USBIFIFCF_CONFIGURATION_DEFAULT && 976 loc != uiaa.uiaa_configno) 977 continue; 978 loc = locators[USBIFIFCF_INTERFACE]; 979 if (loc != USBIFIFCF_INTERFACE_DEFAULT && 980 loc != uiaa.uiaa_ifaceno) 981 continue; 982 } 983 KERNEL_LOCK(1, NULL); 984 dv = config_found_sm_loc(parent, "usbifif", ilocs, &uiaa, 985 usbd_ifprint, config_stdsubmatch); 986 KERNEL_UNLOCK_ONE(NULL); 987 if (!dv) 988 continue; 989 990 usbd_serialnumber(dv, dev); 991 992 /* claim */ 993 ifaces[i] = NULL; 994 /* account for ifaces claimed by the driver behind our back */ 995 for (j = 0; j < nifaces; j++) { 996 997 if (!ifaces[j] && !dev->ud_subdevs[j]) { 998 DPRINTF("interface %jd claimed behind our back", 999 j, 0, 0, 0); 1000 dev->ud_subdevs[j] = dv; 1001 dev->ud_nifaces_claimed++; 1002 } 1003 } 1004 } 1005 1006 kmem_free(ifaces, nifaces * sizeof(*ifaces)); 1007 return USBD_NORMAL_COMPLETION; 1008 } 1009 1010 usbd_status 1011 usbd_probe_and_attach(device_t parent, struct usbd_device *dev, 1012 int port, int addr) 1013 { 1014 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1015 usb_device_descriptor_t *dd = &dev->ud_ddesc; 1016 int confi, nifaces; 1017 usbd_status err; 1018 1019 /* First try with device specific drivers. */ 1020 DPRINTF("trying device specific drivers", 0, 0, 0, 0); 1021 err = usbd_attachwholedevice(parent, dev, port, 0); 1022 if (dev->ud_nifaces_claimed || err) 1023 return err; 1024 DPRINTF("no device specific driver found", 0, 0, 0, 0); 1025 1026 DPRINTF("looping over %jd configurations", dd->bNumConfigurations, 1027 0, 0, 0); 1028 for (confi = 0; confi < dd->bNumConfigurations; confi++) { 1029 DPRINTFN(1, "trying config idx=%jd", confi, 0, 0, 0); 1030 err = usbd_set_config_index(dev, confi, 1); 1031 if (err) { 1032 DPRINTF("port %jd, set config at addr %jd failed, " 1033 "error=%d", port, addr, err, 0); 1034 printf("%s: port %d, set config at addr %d failed\n", 1035 device_xname(parent), port, addr); 1036 return err; 1037 } 1038 nifaces = dev->ud_cdesc->bNumInterface; 1039 dev->ud_subdevs = kmem_zalloc(nifaces * sizeof(device_t), 1040 KM_SLEEP); 1041 if (dev->ud_subdevs == NULL) 1042 return USBD_NOMEM; 1043 dev->ud_subdevlen = nifaces; 1044 1045 err = usbd_attachinterfaces(parent, dev, port, NULL); 1046 1047 if (!dev->ud_nifaces_claimed) { 1048 kmem_free(dev->ud_subdevs, 1049 dev->ud_subdevlen * sizeof(device_t)); 1050 dev->ud_subdevs = 0; 1051 dev->ud_subdevlen = 0; 1052 } 1053 if (dev->ud_nifaces_claimed || err) 1054 return err; 1055 } 1056 /* No interfaces were attached in any of the configurations. */ 1057 1058 if (dd->bNumConfigurations > 1) /* don't change if only 1 config */ 1059 usbd_set_config_index(dev, 0, 0); 1060 1061 DPRINTF("no interface drivers found", 0, 0, 0, 0); 1062 1063 /* Finally try the generic driver. */ 1064 err = usbd_attachwholedevice(parent, dev, port, 1); 1065 1066 /* 1067 * The generic attach failed, but leave the device as it is. 1068 * We just did not find any drivers, that's all. The device is 1069 * fully operational and not harming anyone. 1070 */ 1071 DPRINTF("generic attach failed", 0, 0, 0, 0); 1072 1073 return USBD_NORMAL_COMPLETION; 1074 } 1075 1076 /** 1077 * Called from uhub_rescan(). usbd_new_device() for the target dev must be 1078 * called before calling this. 1079 */ 1080 usbd_status 1081 usbd_reattach_device(device_t parent, struct usbd_device *dev, 1082 int port, const int *locators) 1083 { 1084 int i, loc; 1085 1086 if (locators != NULL) { 1087 loc = locators[USBIFIFCF_PORT]; 1088 if (loc != USBIFIFCF_PORT_DEFAULT && loc != port) 1089 return USBD_NORMAL_COMPLETION; 1090 loc = locators[USBIFIFCF_VENDOR]; 1091 if (loc != USBIFIFCF_VENDOR_DEFAULT && 1092 loc != UGETW(dev->ud_ddesc.idVendor)) 1093 return USBD_NORMAL_COMPLETION; 1094 loc = locators[USBIFIFCF_PRODUCT]; 1095 if (loc != USBIFIFCF_PRODUCT_DEFAULT && 1096 loc != UGETW(dev->ud_ddesc.idProduct)) 1097 return USBD_NORMAL_COMPLETION; 1098 loc = locators[USBIFIFCF_RELEASE]; 1099 if (loc != USBIFIFCF_RELEASE_DEFAULT && 1100 loc != UGETW(dev->ud_ddesc.bcdDevice)) 1101 return USBD_NORMAL_COMPLETION; 1102 } 1103 if (dev->ud_subdevlen == 0) { 1104 /* XXX: check USBIFIFCF_CONFIGURATION and 1105 * USBIFIFCF_INTERFACE too */ 1106 return usbd_probe_and_attach(parent, dev, port, dev->ud_addr); 1107 } else if (dev->ud_subdevlen != dev->ud_cdesc->bNumInterface) { 1108 /* device-specific or generic driver is already attached. */ 1109 return USBD_NORMAL_COMPLETION; 1110 } 1111 /* Does the device have unconfigured interfaces? */ 1112 for (i = 0; i < dev->ud_subdevlen; i++) { 1113 if (dev->ud_subdevs[i] == NULL) { 1114 break; 1115 } 1116 } 1117 if (i >= dev->ud_subdevlen) 1118 return USBD_NORMAL_COMPLETION; 1119 return usbd_attachinterfaces(parent, dev, port, locators); 1120 } 1121 1122 /* 1123 * Get the first 8 bytes of the device descriptor. 1124 * Do as Windows does: try to read 64 bytes -- there are devices which 1125 * recognize the initial descriptor fetch (before the control endpoint's 1126 * MaxPacketSize is known by the host) by exactly this length. 1127 */ 1128 usbd_status 1129 usbd_get_initial_ddesc(struct usbd_device *dev, usb_device_descriptor_t *desc) 1130 { 1131 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1132 usb_device_request_t req; 1133 char buf[64]; 1134 int res, actlen; 1135 1136 DPRINTFN(5, "dev %#jx", (uintptr_t)dev, 0, 0, 0); 1137 1138 req.bmRequestType = UT_READ_DEVICE; 1139 req.bRequest = UR_GET_DESCRIPTOR; 1140 USETW2(req.wValue, UDESC_DEVICE, 0); 1141 USETW(req.wIndex, 0); 1142 USETW(req.wLength, 64); 1143 res = usbd_do_request_flags(dev, &req, buf, USBD_SHORT_XFER_OK, 1144 &actlen, USBD_DEFAULT_TIMEOUT); 1145 if (res) 1146 return res; 1147 if (actlen < 8) 1148 return USBD_SHORT_XFER; 1149 memcpy(desc, buf, 8); 1150 return USBD_NORMAL_COMPLETION; 1151 } 1152 1153 /* 1154 * Called when a new device has been put in the powered state, 1155 * but not yet in the addressed state. 1156 * Get initial descriptor, set the address, get full descriptor, 1157 * and attach a driver. 1158 */ 1159 usbd_status 1160 usbd_new_device(device_t parent, struct usbd_bus *bus, int depth, int speed, 1161 int port, struct usbd_port *up) 1162 { 1163 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1164 struct usbd_device *dev, *adev; 1165 struct usbd_device *hub; 1166 usb_device_descriptor_t *dd; 1167 usb_port_status_t ps; 1168 usbd_status err; 1169 int addr; 1170 int i; 1171 int p; 1172 1173 DPRINTF("bus=%#jx port=%jd depth=%jd speed=%jd", 1174 (uintptr_t)bus, port, depth, speed); 1175 1176 if (bus->ub_methods->ubm_newdev != NULL) 1177 return (bus->ub_methods->ubm_newdev)(parent, bus, depth, speed, 1178 port, up); 1179 1180 addr = usbd_getnewaddr(bus); 1181 if (addr < 0) { 1182 printf("%s: No free USB addresses, new device ignored.\n", 1183 device_xname(bus->ub_usbctl)); 1184 return USBD_NO_ADDR; 1185 } 1186 1187 dev = kmem_zalloc(sizeof(*dev), KM_SLEEP); 1188 dev->ud_bus = bus; 1189 1190 /* Set up default endpoint handle. */ 1191 dev->ud_ep0.ue_edesc = &dev->ud_ep0desc; 1192 1193 /* Set up default endpoint descriptor. */ 1194 dev->ud_ep0desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 1195 dev->ud_ep0desc.bDescriptorType = UDESC_ENDPOINT; 1196 dev->ud_ep0desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 1197 dev->ud_ep0desc.bmAttributes = UE_CONTROL; 1198 /* 1199 * temporary, will be fixed after first descriptor fetch 1200 * (which uses 64 bytes so it shouldn't be less), 1201 * highspeed devices must support 64 byte packets anyway 1202 */ 1203 if (speed == USB_SPEED_HIGH || speed == USB_SPEED_FULL) 1204 USETW(dev->ud_ep0desc.wMaxPacketSize, 64); 1205 else 1206 USETW(dev->ud_ep0desc.wMaxPacketSize, USB_MAX_IPACKET); 1207 1208 dev->ud_ep0desc.bInterval = 0; 1209 1210 /* doesn't matter, just don't leave it uninitialized */ 1211 dev->ud_ep0.ue_toggle = 0; 1212 1213 dev->ud_quirks = &usbd_no_quirk; 1214 dev->ud_addr = USB_START_ADDR; 1215 dev->ud_ddesc.bMaxPacketSize = 0; 1216 dev->ud_depth = depth; 1217 dev->ud_powersrc = up; 1218 dev->ud_myhub = up->up_parent; 1219 1220 up->up_dev = dev; 1221 1222 /* Locate port on upstream high speed hub */ 1223 for (adev = dev, hub = up->up_parent; 1224 hub != NULL && hub->ud_speed != USB_SPEED_HIGH; 1225 adev = hub, hub = hub->ud_myhub) 1226 ; 1227 if (hub) { 1228 for (p = 0; p < hub->ud_hub->uh_hubdesc.bNbrPorts; p++) { 1229 if (hub->ud_hub->uh_ports[p].up_dev == adev) { 1230 dev->ud_myhsport = &hub->ud_hub->uh_ports[p]; 1231 goto found; 1232 } 1233 } 1234 panic("usbd_new_device: cannot find HS port"); 1235 found: 1236 DPRINTFN(1, "high speed port %jd", p, 0, 0, 0); 1237 } else { 1238 dev->ud_myhsport = NULL; 1239 } 1240 dev->ud_speed = speed; 1241 dev->ud_langid = USBD_NOLANG; 1242 dev->ud_cookie.cookie = ++usb_cookie_no; 1243 1244 /* Establish the default pipe. */ 1245 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1246 &dev->ud_pipe0, USBD_MPSAFE); 1247 if (err) { 1248 usbd_remove_device(dev, up); 1249 return err; 1250 } 1251 1252 dd = &dev->ud_ddesc; 1253 /* Try a few times in case the device is slow (i.e. outside specs.) */ 1254 for (i = 0; i < 10; i++) { 1255 /* Get the first 8 bytes of the device descriptor. */ 1256 err = usbd_get_initial_ddesc(dev, dd); 1257 if (!err) 1258 break; 1259 /* 1260 * The root hub can never fail to give the initial descriptor, 1261 * but assert it just in case. 1262 */ 1263 KASSERT(up->up_parent); 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=%jd, getting first desc failed: %jd", 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=%jd, rev=%02jx, class=%jd, subclass=%jd", 1292 addr, UGETW(dd->bcdUSB), dd->bDeviceClass, dd->bDeviceSubClass); 1293 DPRINTF("protocol=%jd, maxpacket=%jd, len=%jd, speed=%jd", 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 %jd", 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 %jd", 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 %jd", 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=%jd", addr, 0, 0, 0); 1323 err = usbd_set_address(dev, addr); 1324 if (err) { 1325 DPRINTF("set address %jd failed, err = %jd", 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[usb_addr2dindex(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 = %jd", 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=%jd, getting full desc failed, err = %jd", 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 %jd), dev=%#jx, parent=%#jx", 1359 addr, (uintptr_t)dev, (uintptr_t)parent, 0); 1360 1361 usbd_get_device_strings(dev); 1362 1363 usbd_add_dev_event(USB_EVENT_DEVICE_ATTACH, dev); 1364 1365 if (port == 0) { /* root hub */ 1366 KASSERT(addr == 1); 1367 usbd_attach_roothub(parent, dev); 1368 return USBD_NORMAL_COMPLETION; 1369 } 1370 1371 err = usbd_probe_and_attach(parent, dev, port, addr); 1372 if (err) { 1373 usbd_remove_device(dev, up); 1374 return err; 1375 } 1376 1377 return USBD_NORMAL_COMPLETION; 1378 } 1379 1380 usbd_status 1381 usbd_reload_device_desc(struct usbd_device *dev) 1382 { 1383 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1384 usb_device_descriptor_t *udd = &dev->ud_ddesc; 1385 usbd_status err; 1386 1387 /* Get the full device descriptor. */ 1388 err = usbd_get_device_desc(dev, udd); 1389 if (err) 1390 return err; 1391 1392 DPRINTFN(15, "bLength %5ju", udd->bLength, 0, 0, 0); 1393 DPRINTFN(15, "bDescriptorType %5ju", udd->bDescriptorType, 0, 0, 0); 1394 DPRINTFN(15, "bcdUSB %2jx.%02jx", udd->bcdUSB[1], 1395 udd->bcdUSB[0], 0, 0); 1396 DPRINTFN(15, "bDeviceClass %5ju", udd->bDeviceClass, 0, 0, 0); 1397 DPRINTFN(15, "bDeviceSubClass %5ju", udd->bDeviceSubClass, 0, 0, 0); 1398 DPRINTFN(15, "bDeviceProtocol %5ju", udd->bDeviceProtocol, 0, 0, 0); 1399 DPRINTFN(15, "bMaxPacketSize0 %5ju", udd->bMaxPacketSize, 0, 0, 0); 1400 DPRINTFN(15, "idVendor %#02jx %#02jx", 1401 udd->idVendor[0], 1402 udd->idVendor[1], 0, 0); 1403 DPRINTFN(15, "idProduct %#02jx %#02jx", 1404 udd->idProduct[0], 1405 udd->idProduct[1], 0, 0); 1406 DPRINTFN(15, "bcdDevice %2jx.%02jx", udd->bcdDevice[1], 1407 udd->bcdDevice[0], 0, 0); 1408 DPRINTFN(15, "iManufacturer %5ju", udd->iManufacturer, 0, 0, 0); 1409 DPRINTFN(15, "iProduct %5ju", udd->iProduct, 0, 0, 0); 1410 DPRINTFN(15, "iSerial %5ju", udd->iSerialNumber, 0, 0, 0); 1411 DPRINTFN(15, "bNumConfigurations %5ju", udd->bNumConfigurations, 0, 0, 1412 0); 1413 1414 /* Figure out what's wrong with this device. */ 1415 dev->ud_quirks = usbd_find_quirk(udd); 1416 1417 return USBD_NORMAL_COMPLETION; 1418 } 1419 1420 void 1421 usbd_remove_device(struct usbd_device *dev, struct usbd_port *up) 1422 { 1423 1424 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1425 1426 DPRINTF("dev %#jx up %#jx", (uintptr_t)dev, (uintptr_t)up, 0, 0); 1427 1428 if (dev->ud_pipe0 != NULL) 1429 usbd_kill_pipe(dev->ud_pipe0); 1430 up->up_dev = NULL; 1431 dev->ud_bus->ub_devices[usb_addr2dindex(dev->ud_addr)] = NULL; 1432 1433 kmem_free(dev, sizeof(*dev)); 1434 } 1435 1436 int 1437 usbd_print(void *aux, const char *pnp) 1438 { 1439 struct usb_attach_arg *uaa = aux; 1440 1441 if (pnp) { 1442 #define USB_DEVINFO 1024 1443 char *devinfo; 1444 if (!uaa->uaa_usegeneric) 1445 return QUIET; 1446 devinfo = kmem_alloc(USB_DEVINFO, KM_SLEEP); 1447 usbd_devinfo(uaa->uaa_device, 1, devinfo, USB_DEVINFO); 1448 aprint_normal("%s, %s", devinfo, pnp); 1449 kmem_free(devinfo, USB_DEVINFO); 1450 } 1451 aprint_normal(" port %d", uaa->uaa_port); 1452 #if 0 1453 /* 1454 * It gets very crowded with these locators on the attach line. 1455 * They are not really needed since they are printed in the clear 1456 * by each driver. 1457 */ 1458 if (uaa->uaa_vendor != UHUB_UNK_VENDOR) 1459 aprint_normal(" vendor %#04x", uaa->uaa_vendor); 1460 if (uaa->uaa_product != UHUB_UNK_PRODUCT) 1461 aprint_normal(" product %#04x", uaa->uaa_product); 1462 if (uaa->uaa_release != UHUB_UNK_RELEASE) 1463 aprint_normal(" release %#04x", uaa->uaa_release); 1464 #endif 1465 return UNCONF; 1466 } 1467 1468 int 1469 usbd_ifprint(void *aux, const char *pnp) 1470 { 1471 struct usbif_attach_arg *uiaa = aux; 1472 1473 if (pnp) 1474 return QUIET; 1475 aprint_normal(" port %d", uiaa->uiaa_port); 1476 aprint_normal(" configuration %d", uiaa->uiaa_configno); 1477 aprint_normal(" interface %d", uiaa->uiaa_ifaceno); 1478 #if 0 1479 /* 1480 * It gets very crowded with these locators on the attach line. 1481 * They are not really needed since they are printed in the clear 1482 * by each driver. 1483 */ 1484 if (uaa->uaa_vendor != UHUB_UNK_VENDOR) 1485 aprint_normal(" vendor %#04x", uaa->uaa_vendor); 1486 if (uaa->uaa_product != UHUB_UNK_PRODUCT) 1487 aprint_normal(" product %#04x", uaa->uaa_product); 1488 if (uaa->uaa_release != UHUB_UNK_RELEASE) 1489 aprint_normal(" release %#04x", uaa->uaa_release); 1490 #endif 1491 return UNCONF; 1492 } 1493 1494 void 1495 usbd_fill_deviceinfo(struct usbd_device *dev, struct usb_device_info *di, 1496 int usedev) 1497 { 1498 struct usbd_port *p; 1499 int i, j, err; 1500 1501 di->udi_bus = device_unit(dev->ud_bus->ub_usbctl); 1502 di->udi_addr = dev->ud_addr; 1503 di->udi_cookie = dev->ud_cookie; 1504 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1505 di->udi_product, sizeof(di->udi_product), usedev, 1); 1506 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1507 UGETW(dev->ud_ddesc.bcdDevice)); 1508 if (usedev) { 1509 usbd_status uerr = usbd_get_string(dev, 1510 dev->ud_ddesc.iSerialNumber, di->udi_serial); 1511 if (uerr != USBD_NORMAL_COMPLETION) { 1512 di->udi_serial[0] = '\0'; 1513 } else { 1514 usbd_trim_spaces(di->udi_serial); 1515 } 1516 } else { 1517 di->udi_serial[0] = '\0'; 1518 if (dev->ud_serial) { 1519 strlcpy(di->udi_serial, dev->ud_serial, 1520 sizeof(di->udi_serial)); 1521 } 1522 } 1523 1524 di->udi_vendorNo = UGETW(dev->ud_ddesc.idVendor); 1525 di->udi_productNo = UGETW(dev->ud_ddesc.idProduct); 1526 di->udi_releaseNo = UGETW(dev->ud_ddesc.bcdDevice); 1527 di->udi_class = dev->ud_ddesc.bDeviceClass; 1528 di->udi_subclass = dev->ud_ddesc.bDeviceSubClass; 1529 di->udi_protocol = dev->ud_ddesc.bDeviceProtocol; 1530 di->udi_config = dev->ud_config; 1531 di->udi_power = dev->ud_selfpowered ? 0 : dev->ud_power; 1532 di->udi_speed = dev->ud_speed; 1533 1534 if (dev->ud_subdevlen > 0) { 1535 for (i = 0, j = 0; i < dev->ud_subdevlen && 1536 j < USB_MAX_DEVNAMES; i++) { 1537 if (!dev->ud_subdevs[i]) 1538 continue; 1539 strncpy(di->udi_devnames[j], 1540 device_xname(dev->ud_subdevs[i]), USB_MAX_DEVNAMELEN); 1541 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1542 j++; 1543 } 1544 } else { 1545 j = 0; 1546 } 1547 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1548 di->udi_devnames[j][0] = 0; /* empty */ 1549 1550 if (!dev->ud_hub) { 1551 di->udi_nports = 0; 1552 return; 1553 } 1554 1555 const int nports = dev->ud_hub->uh_hubdesc.bNbrPorts; 1556 for (i = 0; i < __arraycount(di->udi_ports) && i < nports; i++) { 1557 p = &dev->ud_hub->uh_ports[i]; 1558 if (p->up_dev) 1559 err = p->up_dev->ud_addr; 1560 else { 1561 const int s = UGETW(p->up_status.wPortStatus); 1562 const bool sshub_p = USB_IS_SS(dev->ud_speed); 1563 if (s & UPS_PORT_ENABLED) 1564 err = USB_PORT_ENABLED; 1565 else if (s & UPS_SUSPEND) 1566 err = USB_PORT_SUSPENDED; 1567 /* 1568 * Note: UPS_PORT_POWER_SS is available only 1569 * on 3.x, and UPS_PORT_POWER is available 1570 * only on 2.0 or 1.1. 1571 */ 1572 else if (sshub_p && (s & UPS_PORT_POWER_SS)) 1573 err = USB_PORT_POWERED; 1574 else if (!sshub_p && (s & UPS_PORT_POWER)) 1575 err = USB_PORT_POWERED; 1576 else 1577 err = USB_PORT_DISABLED; 1578 } 1579 di->udi_ports[i] = err; 1580 } 1581 di->udi_nports = nports; 1582 } 1583 1584 #ifdef COMPAT_30 1585 void 1586 usbd_fill_deviceinfo_old(struct usbd_device *dev, struct usb_device_info_old *di, 1587 int usedev) 1588 { 1589 struct usbd_port *p; 1590 int i, j, err; 1591 1592 di->udi_bus = device_unit(dev->ud_bus->ub_usbctl); 1593 di->udi_addr = dev->ud_addr; 1594 di->udi_cookie = dev->ud_cookie; 1595 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1596 di->udi_product, sizeof(di->udi_product), usedev, 0); 1597 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1598 UGETW(dev->ud_ddesc.bcdDevice)); 1599 di->udi_vendorNo = UGETW(dev->ud_ddesc.idVendor); 1600 di->udi_productNo = UGETW(dev->ud_ddesc.idProduct); 1601 di->udi_releaseNo = UGETW(dev->ud_ddesc.bcdDevice); 1602 di->udi_class = dev->ud_ddesc.bDeviceClass; 1603 di->udi_subclass = dev->ud_ddesc.bDeviceSubClass; 1604 di->udi_protocol = dev->ud_ddesc.bDeviceProtocol; 1605 di->udi_config = dev->ud_config; 1606 di->udi_power = dev->ud_selfpowered ? 0 : dev->ud_power; 1607 di->udi_speed = dev->ud_speed; 1608 1609 if (dev->ud_subdevlen > 0) { 1610 for (i = 0, j = 0; i < dev->ud_subdevlen && 1611 j < USB_MAX_DEVNAMES; i++) { 1612 if (!dev->ud_subdevs[i]) 1613 continue; 1614 strncpy(di->udi_devnames[j], 1615 device_xname(dev->ud_subdevs[i]), USB_MAX_DEVNAMELEN); 1616 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1617 j++; 1618 } 1619 } else { 1620 j = 0; 1621 } 1622 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1623 di->udi_devnames[j][0] = 0; /* empty */ 1624 1625 if (!dev->ud_hub) { 1626 di->udi_nports = 0; 1627 return; 1628 } 1629 1630 const int nports = dev->ud_hub->uh_hubdesc.bNbrPorts; 1631 for (i = 0; i < __arraycount(di->udi_ports) && i < nports; 1632 i++) { 1633 p = &dev->ud_hub->uh_ports[i]; 1634 if (p->up_dev) 1635 err = p->up_dev->ud_addr; 1636 else { 1637 const int s = UGETW(p->up_status.wPortStatus); 1638 if (s & UPS_PORT_ENABLED) 1639 err = USB_PORT_ENABLED; 1640 else if (s & UPS_SUSPEND) 1641 err = USB_PORT_SUSPENDED; 1642 else if (s & UPS_PORT_POWER) 1643 err = USB_PORT_POWERED; 1644 else 1645 err = USB_PORT_DISABLED; 1646 } 1647 di->udi_ports[i] = err; 1648 } 1649 di->udi_nports = nports; 1650 } 1651 #endif 1652 1653 1654 void 1655 usb_free_device(struct usbd_device *dev) 1656 { 1657 int ifcidx, nifc; 1658 1659 if (dev->ud_pipe0 != NULL) 1660 usbd_kill_pipe(dev->ud_pipe0); 1661 if (dev->ud_ifaces != NULL) { 1662 nifc = dev->ud_cdesc->bNumInterface; 1663 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 1664 usbd_free_iface_data(dev, ifcidx); 1665 kmem_free(dev->ud_ifaces, 1666 nifc * sizeof(struct usbd_interface)); 1667 } 1668 if (dev->ud_cdesc != NULL) 1669 kmem_free(dev->ud_cdesc, UGETW(dev->ud_cdesc->wTotalLength)); 1670 if (dev->ud_bdesc != NULL) 1671 kmem_free(dev->ud_bdesc, UGETW(dev->ud_bdesc->wTotalLength)); 1672 if (dev->ud_subdevlen > 0) { 1673 kmem_free(dev->ud_subdevs, 1674 dev->ud_subdevlen * sizeof(device_t)); 1675 dev->ud_subdevlen = 0; 1676 } 1677 if (dev->ud_vendor) { 1678 kmem_free(dev->ud_vendor, USB_MAX_ENCODED_STRING_LEN); 1679 } 1680 if (dev->ud_product) { 1681 kmem_free(dev->ud_product, USB_MAX_ENCODED_STRING_LEN); 1682 } 1683 if (dev->ud_serial) { 1684 kmem_free(dev->ud_serial, USB_MAX_ENCODED_STRING_LEN); 1685 } 1686 kmem_free(dev, sizeof(*dev)); 1687 } 1688 1689 /* 1690 * The general mechanism for detaching drivers works as follows: Each 1691 * driver is responsible for maintaining a reference count on the 1692 * number of outstanding references to its softc (e.g. from 1693 * processing hanging in a read or write). The detach method of the 1694 * driver decrements this counter and flags in the softc that the 1695 * driver is dying and then wakes any sleepers. It then sleeps on the 1696 * softc. Each place that can sleep must maintain the reference 1697 * count. When the reference count drops to -1 (0 is the normal value 1698 * of the reference count) then a wakeup on the softc is performed 1699 * signaling to the detach waiter that all references are gone. 1700 */ 1701 1702 /* 1703 * Called from process context when we discover that a port has 1704 * been disconnected. 1705 */ 1706 int 1707 usb_disconnect_port(struct usbd_port *up, device_t parent, int flags) 1708 { 1709 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1710 struct usbd_device *dev = up->up_dev; 1711 device_t subdev; 1712 char subdevname[16]; 1713 const char *hubname = device_xname(parent); 1714 int i, rc; 1715 1716 DPRINTFN(3, "up=%#jx dev=%#jx port=%jd", (uintptr_t)up, (uintptr_t)dev, 1717 up->up_portno, 0); 1718 1719 if (dev == NULL) { 1720 return 0; 1721 } 1722 1723 if (dev->ud_subdevlen > 0) { 1724 DPRINTFN(3, "disconnect subdevs", 0, 0, 0, 0); 1725 for (i = 0; i < dev->ud_subdevlen; i++) { 1726 if ((subdev = dev->ud_subdevs[i]) == NULL) 1727 continue; 1728 strlcpy(subdevname, device_xname(subdev), 1729 sizeof(subdevname)); 1730 if ((rc = config_detach(subdev, flags)) != 0) 1731 return rc; 1732 printf("%s: at %s", subdevname, hubname); 1733 if (up->up_portno != 0) 1734 printf(" port %d", up->up_portno); 1735 printf(" (addr %d) disconnected\n", dev->ud_addr); 1736 } 1737 KASSERT(!dev->ud_nifaces_claimed); 1738 } 1739 1740 mutex_enter(dev->ud_bus->ub_lock); 1741 dev->ud_bus->ub_devices[usb_addr2dindex(dev->ud_addr)] = NULL; 1742 up->up_dev = NULL; 1743 mutex_exit(dev->ud_bus->ub_lock); 1744 1745 usbd_add_dev_event(USB_EVENT_DEVICE_DETACH, dev); 1746 1747 usb_free_device(dev); 1748 1749 return 0; 1750 } 1751