1 /* $NetBSD: usb_subr.c,v 1.224 2018/04/30 05:04:34 mlelstv 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 1.224 2018/04/30 05:04:34 mlelstv 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 KERNEL_LOCK(1, curlwp); 862 dv = config_found_ia(parent, "usbroothubif", &uaa, 0); 863 KERNEL_UNLOCK_ONE(curlwp); 864 if (dv) { 865 dev->ud_subdevs = kmem_alloc(sizeof(dv), KM_SLEEP); 866 dev->ud_subdevs[0] = dv; 867 dev->ud_subdevlen = 1; 868 } 869 return USBD_NORMAL_COMPLETION; 870 } 871 872 static void 873 usbd_serialnumber(device_t dv, struct usbd_device *dev) 874 { 875 if (dev->ud_serial) { 876 prop_dictionary_set_cstring(device_properties(dv), 877 "serialnumber", dev->ud_serial); 878 } 879 } 880 881 static usbd_status 882 usbd_attachwholedevice(device_t parent, struct usbd_device *dev, int port, 883 int usegeneric) 884 { 885 struct usb_attach_arg uaa; 886 usb_device_descriptor_t *dd = &dev->ud_ddesc; 887 device_t dv; 888 int dlocs[USBDEVIFCF_NLOCS]; 889 890 uaa.uaa_device = dev; 891 uaa.uaa_usegeneric = usegeneric; 892 uaa.uaa_port = port; 893 uaa.uaa_vendor = UGETW(dd->idVendor); 894 uaa.uaa_product = UGETW(dd->idProduct); 895 uaa.uaa_release = UGETW(dd->bcdDevice); 896 uaa.uaa_class = dd->bDeviceClass; 897 uaa.uaa_subclass = dd->bDeviceSubClass; 898 uaa.uaa_proto = dd->bDeviceProtocol; 899 900 dlocs[USBDEVIFCF_PORT] = uaa.uaa_port; 901 dlocs[USBDEVIFCF_VENDOR] = uaa.uaa_vendor; 902 dlocs[USBDEVIFCF_PRODUCT] = uaa.uaa_product; 903 dlocs[USBDEVIFCF_RELEASE] = uaa.uaa_release; 904 /* the rest is historical ballast */ 905 dlocs[USBDEVIFCF_CONFIGURATION] = -1; 906 dlocs[USBDEVIFCF_INTERFACE] = -1; 907 908 KERNEL_LOCK(1, curlwp); 909 dv = config_found_sm_loc(parent, "usbdevif", dlocs, &uaa, usbd_print, 910 config_stdsubmatch); 911 KERNEL_UNLOCK_ONE(curlwp); 912 if (dv) { 913 dev->ud_subdevs = kmem_alloc(sizeof(dv), KM_SLEEP); 914 dev->ud_subdevs[0] = dv; 915 dev->ud_subdevlen = 1; 916 dev->ud_nifaces_claimed = 1; /* XXX */ 917 usbd_serialnumber(dv, dev); 918 } 919 return USBD_NORMAL_COMPLETION; 920 } 921 922 static usbd_status 923 usbd_attachinterfaces(device_t parent, struct usbd_device *dev, 924 int port, const int *locators) 925 { 926 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 927 struct usbif_attach_arg uiaa; 928 int ilocs[USBIFIFCF_NLOCS]; 929 usb_device_descriptor_t *dd = &dev->ud_ddesc; 930 int nifaces; 931 struct usbd_interface **ifaces; 932 int i, j, loc; 933 device_t dv; 934 935 nifaces = dev->ud_cdesc->bNumInterface; 936 ifaces = kmem_zalloc(nifaces * sizeof(*ifaces), KM_SLEEP); 937 for (i = 0; i < nifaces; i++) { 938 if (!dev->ud_subdevs[i]) { 939 ifaces[i] = &dev->ud_ifaces[i]; 940 } 941 DPRINTF("interface %jd %#jx", i, (uintptr_t)ifaces[i], 0, 0); 942 } 943 944 945 uiaa.uiaa_device = dev; 946 uiaa.uiaa_port = port; 947 uiaa.uiaa_vendor = UGETW(dd->idVendor); 948 uiaa.uiaa_product = UGETW(dd->idProduct); 949 uiaa.uiaa_release = UGETW(dd->bcdDevice); 950 uiaa.uiaa_configno = dev->ud_cdesc->bConfigurationValue; 951 uiaa.uiaa_ifaces = ifaces; 952 uiaa.uiaa_nifaces = nifaces; 953 ilocs[USBIFIFCF_PORT] = uiaa.uiaa_port; 954 ilocs[USBIFIFCF_VENDOR] = uiaa.uiaa_vendor; 955 ilocs[USBIFIFCF_PRODUCT] = uiaa.uiaa_product; 956 ilocs[USBIFIFCF_RELEASE] = uiaa.uiaa_release; 957 ilocs[USBIFIFCF_CONFIGURATION] = uiaa.uiaa_configno; 958 959 for (i = 0; i < nifaces; i++) { 960 if (!ifaces[i]) { 961 DPRINTF("interface %jd claimed", i, 0, 0, 0); 962 continue; /* interface already claimed */ 963 } 964 uiaa.uiaa_iface = ifaces[i]; 965 uiaa.uiaa_class = ifaces[i]->ui_idesc->bInterfaceClass; 966 uiaa.uiaa_subclass = ifaces[i]->ui_idesc->bInterfaceSubClass; 967 uiaa.uiaa_proto = ifaces[i]->ui_idesc->bInterfaceProtocol; 968 uiaa.uiaa_ifaceno = ifaces[i]->ui_idesc->bInterfaceNumber; 969 970 DPRINTF("searching for interface %jd...", i, 0, 0, 0); 971 DPRINTF("class %jx subclass %jx proto %jx ifaceno %jd", 972 uiaa.uiaa_class, uiaa.uiaa_subclass, uiaa.uiaa_proto, 973 uiaa.uiaa_ifaceno); 974 ilocs[USBIFIFCF_INTERFACE] = uiaa.uiaa_ifaceno; 975 if (locators != NULL) { 976 loc = locators[USBIFIFCF_CONFIGURATION]; 977 if (loc != USBIFIFCF_CONFIGURATION_DEFAULT && 978 loc != uiaa.uiaa_configno) 979 continue; 980 loc = locators[USBIFIFCF_INTERFACE]; 981 if (loc != USBIFIFCF_INTERFACE_DEFAULT && 982 loc != uiaa.uiaa_ifaceno) 983 continue; 984 } 985 KERNEL_LOCK(1, curlwp); 986 dv = config_found_sm_loc(parent, "usbifif", ilocs, &uiaa, 987 usbd_ifprint, config_stdsubmatch); 988 KERNEL_UNLOCK_ONE(curlwp); 989 if (!dv) 990 continue; 991 992 usbd_serialnumber(dv, dev); 993 994 /* claim */ 995 ifaces[i] = NULL; 996 /* account for ifaces claimed by the driver behind our back */ 997 for (j = 0; j < nifaces; j++) { 998 999 if (!ifaces[j] && !dev->ud_subdevs[j]) { 1000 DPRINTF("interface %jd claimed behind our back", 1001 j, 0, 0, 0); 1002 dev->ud_subdevs[j] = dv; 1003 dev->ud_nifaces_claimed++; 1004 } 1005 } 1006 } 1007 1008 kmem_free(ifaces, nifaces * sizeof(*ifaces)); 1009 return USBD_NORMAL_COMPLETION; 1010 } 1011 1012 usbd_status 1013 usbd_probe_and_attach(device_t parent, struct usbd_device *dev, 1014 int port, int addr) 1015 { 1016 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1017 usb_device_descriptor_t *dd = &dev->ud_ddesc; 1018 int confi, nifaces; 1019 usbd_status err; 1020 1021 /* First try with device specific drivers. */ 1022 DPRINTF("trying device specific drivers", 0, 0, 0, 0); 1023 err = usbd_attachwholedevice(parent, dev, port, 0); 1024 if (dev->ud_nifaces_claimed || err) 1025 return err; 1026 DPRINTF("no device specific driver found", 0, 0, 0, 0); 1027 1028 DPRINTF("looping over %jd configurations", dd->bNumConfigurations, 1029 0, 0, 0); 1030 for (confi = 0; confi < dd->bNumConfigurations; confi++) { 1031 DPRINTFN(1, "trying config idx=%jd", confi, 0, 0, 0); 1032 err = usbd_set_config_index(dev, confi, 1); 1033 if (err) { 1034 DPRINTF("port %jd, set config at addr %jd failed, " 1035 "error=%d", port, addr, err, 0); 1036 printf("%s: port %d, set config at addr %d failed\n", 1037 device_xname(parent), port, addr); 1038 return err; 1039 } 1040 nifaces = dev->ud_cdesc->bNumInterface; 1041 dev->ud_subdevs = kmem_zalloc(nifaces * sizeof(device_t), 1042 KM_SLEEP); 1043 if (dev->ud_subdevs == NULL) 1044 return USBD_NOMEM; 1045 dev->ud_subdevlen = nifaces; 1046 1047 err = usbd_attachinterfaces(parent, dev, port, NULL); 1048 1049 if (!dev->ud_nifaces_claimed) { 1050 kmem_free(dev->ud_subdevs, 1051 dev->ud_subdevlen * sizeof(device_t)); 1052 dev->ud_subdevs = 0; 1053 dev->ud_subdevlen = 0; 1054 } 1055 if (dev->ud_nifaces_claimed || err) 1056 return err; 1057 } 1058 /* No interfaces were attached in any of the configurations. */ 1059 1060 if (dd->bNumConfigurations > 1) /* don't change if only 1 config */ 1061 usbd_set_config_index(dev, 0, 0); 1062 1063 DPRINTF("no interface drivers found", 0, 0, 0, 0); 1064 1065 /* Finally try the generic driver. */ 1066 err = usbd_attachwholedevice(parent, dev, port, 1); 1067 1068 /* 1069 * The generic attach failed, but leave the device as it is. 1070 * We just did not find any drivers, that's all. The device is 1071 * fully operational and not harming anyone. 1072 */ 1073 DPRINTF("generic attach failed", 0, 0, 0, 0); 1074 1075 return USBD_NORMAL_COMPLETION; 1076 } 1077 1078 /** 1079 * Called from uhub_rescan(). usbd_new_device() for the target dev must be 1080 * called before calling this. 1081 */ 1082 usbd_status 1083 usbd_reattach_device(device_t parent, struct usbd_device *dev, 1084 int port, const int *locators) 1085 { 1086 int i, loc; 1087 1088 if (locators != NULL) { 1089 loc = locators[USBIFIFCF_PORT]; 1090 if (loc != USBIFIFCF_PORT_DEFAULT && loc != port) 1091 return USBD_NORMAL_COMPLETION; 1092 loc = locators[USBIFIFCF_VENDOR]; 1093 if (loc != USBIFIFCF_VENDOR_DEFAULT && 1094 loc != UGETW(dev->ud_ddesc.idVendor)) 1095 return USBD_NORMAL_COMPLETION; 1096 loc = locators[USBIFIFCF_PRODUCT]; 1097 if (loc != USBIFIFCF_PRODUCT_DEFAULT && 1098 loc != UGETW(dev->ud_ddesc.idProduct)) 1099 return USBD_NORMAL_COMPLETION; 1100 loc = locators[USBIFIFCF_RELEASE]; 1101 if (loc != USBIFIFCF_RELEASE_DEFAULT && 1102 loc != UGETW(dev->ud_ddesc.bcdDevice)) 1103 return USBD_NORMAL_COMPLETION; 1104 } 1105 if (dev->ud_subdevlen == 0) { 1106 /* XXX: check USBIFIFCF_CONFIGURATION and 1107 * USBIFIFCF_INTERFACE too */ 1108 return usbd_probe_and_attach(parent, dev, port, dev->ud_addr); 1109 } else if (dev->ud_subdevlen != dev->ud_cdesc->bNumInterface) { 1110 /* device-specific or generic driver is already attached. */ 1111 return USBD_NORMAL_COMPLETION; 1112 } 1113 /* Does the device have unconfigured interfaces? */ 1114 for (i = 0; i < dev->ud_subdevlen; i++) { 1115 if (dev->ud_subdevs[i] == NULL) { 1116 break; 1117 } 1118 } 1119 if (i >= dev->ud_subdevlen) 1120 return USBD_NORMAL_COMPLETION; 1121 return usbd_attachinterfaces(parent, dev, port, locators); 1122 } 1123 1124 /* 1125 * Get the first 8 bytes of the device descriptor. 1126 * Do as Windows does: try to read 64 bytes -- there are devices which 1127 * recognize the initial descriptor fetch (before the control endpoint's 1128 * MaxPacketSize is known by the host) by exactly this length. 1129 */ 1130 usbd_status 1131 usbd_get_initial_ddesc(struct usbd_device *dev, usb_device_descriptor_t *desc) 1132 { 1133 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1134 usb_device_request_t req; 1135 char buf[64]; 1136 int res, actlen; 1137 1138 DPRINTFN(5, "dev %#jx", (uintptr_t)dev, 0, 0, 0); 1139 1140 req.bmRequestType = UT_READ_DEVICE; 1141 req.bRequest = UR_GET_DESCRIPTOR; 1142 USETW2(req.wValue, UDESC_DEVICE, 0); 1143 USETW(req.wIndex, 0); 1144 USETW(req.wLength, 64); 1145 res = usbd_do_request_flags(dev, &req, buf, USBD_SHORT_XFER_OK, 1146 &actlen, USBD_DEFAULT_TIMEOUT); 1147 if (res) 1148 return res; 1149 if (actlen < 8) 1150 return USBD_SHORT_XFER; 1151 memcpy(desc, buf, 8); 1152 return USBD_NORMAL_COMPLETION; 1153 } 1154 1155 /* 1156 * Called when a new device has been put in the powered state, 1157 * but not yet in the addressed state. 1158 * Get initial descriptor, set the address, get full descriptor, 1159 * and attach a driver. 1160 */ 1161 usbd_status 1162 usbd_new_device(device_t parent, struct usbd_bus *bus, int depth, int speed, 1163 int port, struct usbd_port *up) 1164 { 1165 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1166 struct usbd_device *dev, *adev; 1167 struct usbd_device *hub; 1168 usb_device_descriptor_t *dd; 1169 usb_port_status_t ps; 1170 usbd_status err; 1171 int addr; 1172 int i; 1173 int p; 1174 1175 DPRINTF("bus=%#jx port=%jd depth=%jd speed=%jd", 1176 (uintptr_t)bus, port, depth, speed); 1177 1178 if (bus->ub_methods->ubm_newdev != NULL) 1179 return (bus->ub_methods->ubm_newdev)(parent, bus, depth, speed, 1180 port, up); 1181 1182 addr = usbd_getnewaddr(bus); 1183 if (addr < 0) { 1184 printf("%s: No free USB addresses, new device ignored.\n", 1185 device_xname(bus->ub_usbctl)); 1186 return USBD_NO_ADDR; 1187 } 1188 1189 dev = kmem_zalloc(sizeof(*dev), KM_SLEEP); 1190 dev->ud_bus = bus; 1191 1192 /* Set up default endpoint handle. */ 1193 dev->ud_ep0.ue_edesc = &dev->ud_ep0desc; 1194 1195 /* Set up default endpoint descriptor. */ 1196 dev->ud_ep0desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 1197 dev->ud_ep0desc.bDescriptorType = UDESC_ENDPOINT; 1198 dev->ud_ep0desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 1199 dev->ud_ep0desc.bmAttributes = UE_CONTROL; 1200 /* 1201 * temporary, will be fixed after first descriptor fetch 1202 * (which uses 64 bytes so it shouldn't be less), 1203 * highspeed devices must support 64 byte packets anyway 1204 */ 1205 if (speed == USB_SPEED_HIGH || speed == USB_SPEED_FULL) 1206 USETW(dev->ud_ep0desc.wMaxPacketSize, 64); 1207 else 1208 USETW(dev->ud_ep0desc.wMaxPacketSize, USB_MAX_IPACKET); 1209 1210 dev->ud_ep0desc.bInterval = 0; 1211 1212 /* doesn't matter, just don't leave it uninitialized */ 1213 dev->ud_ep0.ue_toggle = 0; 1214 1215 dev->ud_quirks = &usbd_no_quirk; 1216 dev->ud_addr = USB_START_ADDR; 1217 dev->ud_ddesc.bMaxPacketSize = 0; 1218 dev->ud_depth = depth; 1219 dev->ud_powersrc = up; 1220 dev->ud_myhub = up->up_parent; 1221 1222 up->up_dev = dev; 1223 1224 /* Locate port on upstream high speed hub */ 1225 for (adev = dev, hub = up->up_parent; 1226 hub != NULL && hub->ud_speed != USB_SPEED_HIGH; 1227 adev = hub, hub = hub->ud_myhub) 1228 ; 1229 if (hub) { 1230 for (p = 0; p < hub->ud_hub->uh_hubdesc.bNbrPorts; p++) { 1231 if (hub->ud_hub->uh_ports[p].up_dev == adev) { 1232 dev->ud_myhsport = &hub->ud_hub->uh_ports[p]; 1233 goto found; 1234 } 1235 } 1236 panic("usbd_new_device: cannot find HS port"); 1237 found: 1238 DPRINTFN(1, "high speed port %jd", p, 0, 0, 0); 1239 } else { 1240 dev->ud_myhsport = NULL; 1241 } 1242 dev->ud_speed = speed; 1243 dev->ud_langid = USBD_NOLANG; 1244 dev->ud_cookie.cookie = ++usb_cookie_no; 1245 1246 /* Establish the default pipe. */ 1247 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1248 &dev->ud_pipe0, USBD_MPSAFE); 1249 if (err) { 1250 usbd_remove_device(dev, up); 1251 return err; 1252 } 1253 1254 dd = &dev->ud_ddesc; 1255 /* Try a few times in case the device is slow (i.e. outside specs.) */ 1256 for (i = 0; i < 10; i++) { 1257 /* Get the first 8 bytes of the device descriptor. */ 1258 err = usbd_get_initial_ddesc(dev, dd); 1259 if (!err) 1260 break; 1261 /* 1262 * The root hub can never fail to give the initial descriptor, 1263 * but assert it just in case. 1264 */ 1265 KASSERT(up->up_parent); 1266 usbd_delay_ms(dev, 200); 1267 if ((i & 3) == 3) 1268 usbd_reset_port(up->up_parent, port, &ps); 1269 } 1270 if (err) { 1271 DPRINTF("addr=%jd, getting first desc failed: %jd", addr, err, 1272 0, 0); 1273 usbd_remove_device(dev, up); 1274 return err; 1275 } 1276 1277 /* Windows resets the port here, do likewise */ 1278 if (up->up_parent) 1279 usbd_reset_port(up->up_parent, port, &ps); 1280 1281 if (speed == USB_SPEED_HIGH) { 1282 /* Max packet size must be 64 (sec 5.5.3). */ 1283 if (dd->bMaxPacketSize != USB_2_MAX_CTRL_PACKET) { 1284 #ifdef DIAGNOSTIC 1285 printf("usbd_new_device: addr=%d bad max packet " 1286 "size=%d. adjusting to %d.\n", 1287 addr, dd->bMaxPacketSize, USB_2_MAX_CTRL_PACKET); 1288 #endif 1289 dd->bMaxPacketSize = USB_2_MAX_CTRL_PACKET; 1290 } 1291 } 1292 1293 DPRINTF("adding unit addr=%jd, rev=%02jx, class=%jd, subclass=%jd", 1294 addr, UGETW(dd->bcdUSB), dd->bDeviceClass, dd->bDeviceSubClass); 1295 DPRINTF("protocol=%jd, maxpacket=%jd, len=%jd, speed=%jd", 1296 dd->bDeviceProtocol, dd->bMaxPacketSize, dd->bLength, dev->ud_speed); 1297 1298 if (dd->bDescriptorType != UDESC_DEVICE) { 1299 /* Illegal device descriptor */ 1300 DPRINTF("illegal descriptor %jd", dd->bDescriptorType, 0, 0, 0); 1301 usbd_remove_device(dev, up); 1302 return USBD_INVAL; 1303 } 1304 1305 if (dd->bLength < USB_DEVICE_DESCRIPTOR_SIZE) { 1306 DPRINTF("bad length %jd", dd->bLength, 0, 0, 0); 1307 usbd_remove_device(dev, up); 1308 return USBD_INVAL; 1309 } 1310 1311 USETW(dev->ud_ep0desc.wMaxPacketSize, dd->bMaxPacketSize); 1312 1313 /* Re-establish the default pipe with the new MPS. */ 1314 usbd_kill_pipe(dev->ud_pipe0); 1315 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1316 &dev->ud_pipe0, USBD_MPSAFE); 1317 if (err) { 1318 DPRINTF("setup default pipe failed err %jd", err, 0, 0, 0); 1319 usbd_remove_device(dev, up); 1320 return err; 1321 } 1322 1323 /* Set the address */ 1324 DPRINTFN(5, "setting device address=%jd", addr, 0, 0, 0); 1325 err = usbd_set_address(dev, addr); 1326 if (err) { 1327 DPRINTF("set address %jd failed, err = %jd", addr, err, 0, 0); 1328 err = USBD_SET_ADDR_FAILED; 1329 usbd_remove_device(dev, up); 1330 return err; 1331 } 1332 1333 /* Allow device time to set new address */ 1334 usbd_delay_ms(dev, USB_SET_ADDRESS_SETTLE); 1335 dev->ud_addr = addr; /* new device address now */ 1336 bus->ub_devices[usb_addr2dindex(addr)] = dev; 1337 1338 /* Re-establish the default pipe with the new address. */ 1339 usbd_kill_pipe(dev->ud_pipe0); 1340 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1341 &dev->ud_pipe0, USBD_MPSAFE); 1342 if (err) { 1343 DPRINTF("setup default pipe failed, err = %jd", err, 0, 0, 0); 1344 usbd_remove_device(dev, up); 1345 return err; 1346 } 1347 1348 err = usbd_reload_device_desc(dev); 1349 if (err) { 1350 DPRINTF("addr=%jd, getting full desc failed, err = %jd", addr, 1351 err, 0, 0); 1352 usbd_remove_device(dev, up); 1353 return err; 1354 } 1355 1356 /* Assume 100mA bus powered for now. Changed when configured. */ 1357 dev->ud_power = USB_MIN_POWER; 1358 dev->ud_selfpowered = 0; 1359 1360 DPRINTF("new dev (addr %jd), dev=%#jx, parent=%#jx", 1361 addr, (uintptr_t)dev, (uintptr_t)parent, 0); 1362 1363 usbd_get_device_strings(dev); 1364 1365 usbd_add_dev_event(USB_EVENT_DEVICE_ATTACH, dev); 1366 1367 if (port == 0) { /* root hub */ 1368 KASSERT(addr == 1); 1369 usbd_attach_roothub(parent, dev); 1370 return USBD_NORMAL_COMPLETION; 1371 } 1372 1373 err = usbd_probe_and_attach(parent, dev, port, addr); 1374 if (err) { 1375 usbd_remove_device(dev, up); 1376 return err; 1377 } 1378 1379 return USBD_NORMAL_COMPLETION; 1380 } 1381 1382 usbd_status 1383 usbd_reload_device_desc(struct usbd_device *dev) 1384 { 1385 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1386 usb_device_descriptor_t *udd = &dev->ud_ddesc; 1387 usbd_status err; 1388 1389 /* Get the full device descriptor. */ 1390 err = usbd_get_device_desc(dev, udd); 1391 if (err) 1392 return err; 1393 1394 DPRINTFN(15, "bLength %5ju", udd->bLength, 0, 0, 0); 1395 DPRINTFN(15, "bDescriptorType %5ju", udd->bDescriptorType, 0, 0, 0); 1396 DPRINTFN(15, "bcdUSB %2jx.%02jx", udd->bcdUSB[1], 1397 udd->bcdUSB[0], 0, 0); 1398 DPRINTFN(15, "bDeviceClass %5ju", udd->bDeviceClass, 0, 0, 0); 1399 DPRINTFN(15, "bDeviceSubClass %5ju", udd->bDeviceSubClass, 0, 0, 0); 1400 DPRINTFN(15, "bDeviceProtocol %5ju", udd->bDeviceProtocol, 0, 0, 0); 1401 DPRINTFN(15, "bMaxPacketSize0 %5ju", udd->bMaxPacketSize, 0, 0, 0); 1402 DPRINTFN(15, "idVendor %#02jx %#02jx", 1403 udd->idVendor[0], 1404 udd->idVendor[1], 0, 0); 1405 DPRINTFN(15, "idProduct %#02jx %#02jx", 1406 udd->idProduct[0], 1407 udd->idProduct[1], 0, 0); 1408 DPRINTFN(15, "bcdDevice %2jx.%02jx", udd->bcdDevice[1], 1409 udd->bcdDevice[0], 0, 0); 1410 DPRINTFN(15, "iManufacturer %5ju", udd->iManufacturer, 0, 0, 0); 1411 DPRINTFN(15, "iProduct %5ju", udd->iProduct, 0, 0, 0); 1412 DPRINTFN(15, "iSerial %5ju", udd->iSerialNumber, 0, 0, 0); 1413 DPRINTFN(15, "bNumConfigurations %5ju", udd->bNumConfigurations, 0, 0, 1414 0); 1415 1416 /* Figure out what's wrong with this device. */ 1417 dev->ud_quirks = usbd_find_quirk(udd); 1418 1419 return USBD_NORMAL_COMPLETION; 1420 } 1421 1422 void 1423 usbd_remove_device(struct usbd_device *dev, struct usbd_port *up) 1424 { 1425 1426 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1427 1428 DPRINTF("dev %#jx up %#jx", (uintptr_t)dev, (uintptr_t)up, 0, 0); 1429 1430 if (dev->ud_pipe0 != NULL) 1431 usbd_kill_pipe(dev->ud_pipe0); 1432 up->up_dev = NULL; 1433 dev->ud_bus->ub_devices[usb_addr2dindex(dev->ud_addr)] = NULL; 1434 1435 kmem_free(dev, sizeof(*dev)); 1436 } 1437 1438 int 1439 usbd_print(void *aux, const char *pnp) 1440 { 1441 struct usb_attach_arg *uaa = aux; 1442 1443 if (pnp) { 1444 #define USB_DEVINFO 1024 1445 char *devinfo; 1446 if (!uaa->uaa_usegeneric) 1447 return QUIET; 1448 devinfo = kmem_alloc(USB_DEVINFO, KM_SLEEP); 1449 usbd_devinfo(uaa->uaa_device, 1, devinfo, USB_DEVINFO); 1450 aprint_normal("%s, %s", devinfo, pnp); 1451 kmem_free(devinfo, USB_DEVINFO); 1452 } 1453 aprint_normal(" port %d", uaa->uaa_port); 1454 #if 0 1455 /* 1456 * It gets very crowded with these locators on the attach line. 1457 * They are not really needed since they are printed in the clear 1458 * by each driver. 1459 */ 1460 if (uaa->uaa_vendor != UHUB_UNK_VENDOR) 1461 aprint_normal(" vendor %#04x", uaa->uaa_vendor); 1462 if (uaa->uaa_product != UHUB_UNK_PRODUCT) 1463 aprint_normal(" product %#04x", uaa->uaa_product); 1464 if (uaa->uaa_release != UHUB_UNK_RELEASE) 1465 aprint_normal(" release %#04x", uaa->uaa_release); 1466 #endif 1467 return UNCONF; 1468 } 1469 1470 int 1471 usbd_ifprint(void *aux, const char *pnp) 1472 { 1473 struct usbif_attach_arg *uiaa = aux; 1474 1475 if (pnp) 1476 return QUIET; 1477 aprint_normal(" port %d", uiaa->uiaa_port); 1478 aprint_normal(" configuration %d", uiaa->uiaa_configno); 1479 aprint_normal(" interface %d", uiaa->uiaa_ifaceno); 1480 #if 0 1481 /* 1482 * It gets very crowded with these locators on the attach line. 1483 * They are not really needed since they are printed in the clear 1484 * by each driver. 1485 */ 1486 if (uaa->uaa_vendor != UHUB_UNK_VENDOR) 1487 aprint_normal(" vendor %#04x", uaa->uaa_vendor); 1488 if (uaa->uaa_product != UHUB_UNK_PRODUCT) 1489 aprint_normal(" product %#04x", uaa->uaa_product); 1490 if (uaa->uaa_release != UHUB_UNK_RELEASE) 1491 aprint_normal(" release %#04x", uaa->uaa_release); 1492 #endif 1493 return UNCONF; 1494 } 1495 1496 void 1497 usbd_fill_deviceinfo(struct usbd_device *dev, struct usb_device_info *di, 1498 int usedev) 1499 { 1500 struct usbd_port *p; 1501 int i, j, err; 1502 1503 di->udi_bus = device_unit(dev->ud_bus->ub_usbctl); 1504 di->udi_addr = dev->ud_addr; 1505 di->udi_cookie = dev->ud_cookie; 1506 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1507 di->udi_product, sizeof(di->udi_product), usedev, 1); 1508 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1509 UGETW(dev->ud_ddesc.bcdDevice)); 1510 if (usedev) { 1511 usbd_status uerr = usbd_get_string(dev, 1512 dev->ud_ddesc.iSerialNumber, di->udi_serial); 1513 if (uerr != USBD_NORMAL_COMPLETION) { 1514 di->udi_serial[0] = '\0'; 1515 } else { 1516 usbd_trim_spaces(di->udi_serial); 1517 } 1518 } else { 1519 di->udi_serial[0] = '\0'; 1520 if (dev->ud_serial) { 1521 strlcpy(di->udi_serial, dev->ud_serial, 1522 sizeof(di->udi_serial)); 1523 } 1524 } 1525 1526 di->udi_vendorNo = UGETW(dev->ud_ddesc.idVendor); 1527 di->udi_productNo = UGETW(dev->ud_ddesc.idProduct); 1528 di->udi_releaseNo = UGETW(dev->ud_ddesc.bcdDevice); 1529 di->udi_class = dev->ud_ddesc.bDeviceClass; 1530 di->udi_subclass = dev->ud_ddesc.bDeviceSubClass; 1531 di->udi_protocol = dev->ud_ddesc.bDeviceProtocol; 1532 di->udi_config = dev->ud_config; 1533 di->udi_power = dev->ud_selfpowered ? 0 : dev->ud_power; 1534 di->udi_speed = dev->ud_speed; 1535 1536 if (dev->ud_subdevlen > 0) { 1537 for (i = 0, j = 0; i < dev->ud_subdevlen && 1538 j < USB_MAX_DEVNAMES; i++) { 1539 if (!dev->ud_subdevs[i]) 1540 continue; 1541 strncpy(di->udi_devnames[j], 1542 device_xname(dev->ud_subdevs[i]), USB_MAX_DEVNAMELEN); 1543 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1544 j++; 1545 } 1546 } else { 1547 j = 0; 1548 } 1549 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1550 di->udi_devnames[j][0] = 0; /* empty */ 1551 1552 if (!dev->ud_hub) { 1553 di->udi_nports = 0; 1554 return; 1555 } 1556 1557 const int nports = dev->ud_hub->uh_hubdesc.bNbrPorts; 1558 for (i = 0; i < __arraycount(di->udi_ports) && i < nports; i++) { 1559 p = &dev->ud_hub->uh_ports[i]; 1560 if (p->up_dev) 1561 err = p->up_dev->ud_addr; 1562 else { 1563 const int s = UGETW(p->up_status.wPortStatus); 1564 const bool sshub_p = USB_IS_SS(dev->ud_speed); 1565 if (s & UPS_PORT_ENABLED) 1566 err = USB_PORT_ENABLED; 1567 else if (s & UPS_SUSPEND) 1568 err = USB_PORT_SUSPENDED; 1569 /* 1570 * Note: UPS_PORT_POWER_SS is available only 1571 * on 3.x, and UPS_PORT_POWER is available 1572 * only on 2.0 or 1.1. 1573 */ 1574 else if (sshub_p && (s & UPS_PORT_POWER_SS)) 1575 err = USB_PORT_POWERED; 1576 else if (!sshub_p && (s & UPS_PORT_POWER)) 1577 err = USB_PORT_POWERED; 1578 else 1579 err = USB_PORT_DISABLED; 1580 } 1581 di->udi_ports[i] = err; 1582 } 1583 di->udi_nports = nports; 1584 } 1585 1586 #ifdef COMPAT_30 1587 void 1588 usbd_fill_deviceinfo_old(struct usbd_device *dev, struct usb_device_info_old *di, 1589 int usedev) 1590 { 1591 struct usbd_port *p; 1592 int i, j, err; 1593 1594 di->udi_bus = device_unit(dev->ud_bus->ub_usbctl); 1595 di->udi_addr = dev->ud_addr; 1596 di->udi_cookie = dev->ud_cookie; 1597 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1598 di->udi_product, sizeof(di->udi_product), usedev, 0); 1599 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1600 UGETW(dev->ud_ddesc.bcdDevice)); 1601 di->udi_vendorNo = UGETW(dev->ud_ddesc.idVendor); 1602 di->udi_productNo = UGETW(dev->ud_ddesc.idProduct); 1603 di->udi_releaseNo = UGETW(dev->ud_ddesc.bcdDevice); 1604 di->udi_class = dev->ud_ddesc.bDeviceClass; 1605 di->udi_subclass = dev->ud_ddesc.bDeviceSubClass; 1606 di->udi_protocol = dev->ud_ddesc.bDeviceProtocol; 1607 di->udi_config = dev->ud_config; 1608 di->udi_power = dev->ud_selfpowered ? 0 : dev->ud_power; 1609 di->udi_speed = dev->ud_speed; 1610 1611 if (dev->ud_subdevlen > 0) { 1612 for (i = 0, j = 0; i < dev->ud_subdevlen && 1613 j < USB_MAX_DEVNAMES; i++) { 1614 if (!dev->ud_subdevs[i]) 1615 continue; 1616 strncpy(di->udi_devnames[j], 1617 device_xname(dev->ud_subdevs[i]), USB_MAX_DEVNAMELEN); 1618 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1619 j++; 1620 } 1621 } else { 1622 j = 0; 1623 } 1624 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1625 di->udi_devnames[j][0] = 0; /* empty */ 1626 1627 if (!dev->ud_hub) { 1628 di->udi_nports = 0; 1629 return; 1630 } 1631 1632 const int nports = dev->ud_hub->uh_hubdesc.bNbrPorts; 1633 for (i = 0; i < __arraycount(di->udi_ports) && i < nports; 1634 i++) { 1635 p = &dev->ud_hub->uh_ports[i]; 1636 if (p->up_dev) 1637 err = p->up_dev->ud_addr; 1638 else { 1639 const int s = UGETW(p->up_status.wPortStatus); 1640 if (s & UPS_PORT_ENABLED) 1641 err = USB_PORT_ENABLED; 1642 else if (s & UPS_SUSPEND) 1643 err = USB_PORT_SUSPENDED; 1644 else if (s & UPS_PORT_POWER) 1645 err = USB_PORT_POWERED; 1646 else 1647 err = USB_PORT_DISABLED; 1648 } 1649 di->udi_ports[i] = err; 1650 } 1651 di->udi_nports = nports; 1652 } 1653 #endif 1654 1655 1656 void 1657 usb_free_device(struct usbd_device *dev) 1658 { 1659 int ifcidx, nifc; 1660 1661 if (dev->ud_pipe0 != NULL) 1662 usbd_kill_pipe(dev->ud_pipe0); 1663 if (dev->ud_ifaces != NULL) { 1664 nifc = dev->ud_cdesc->bNumInterface; 1665 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 1666 usbd_free_iface_data(dev, ifcidx); 1667 kmem_free(dev->ud_ifaces, 1668 nifc * sizeof(struct usbd_interface)); 1669 } 1670 if (dev->ud_cdesc != NULL) 1671 kmem_free(dev->ud_cdesc, UGETW(dev->ud_cdesc->wTotalLength)); 1672 if (dev->ud_bdesc != NULL) 1673 kmem_free(dev->ud_bdesc, UGETW(dev->ud_bdesc->wTotalLength)); 1674 if (dev->ud_subdevlen > 0) { 1675 kmem_free(dev->ud_subdevs, 1676 dev->ud_subdevlen * sizeof(device_t)); 1677 dev->ud_subdevlen = 0; 1678 } 1679 if (dev->ud_vendor) { 1680 kmem_free(dev->ud_vendor, USB_MAX_ENCODED_STRING_LEN); 1681 } 1682 if (dev->ud_product) { 1683 kmem_free(dev->ud_product, USB_MAX_ENCODED_STRING_LEN); 1684 } 1685 if (dev->ud_serial) { 1686 kmem_free(dev->ud_serial, USB_MAX_ENCODED_STRING_LEN); 1687 } 1688 kmem_free(dev, sizeof(*dev)); 1689 } 1690 1691 /* 1692 * The general mechanism for detaching drivers works as follows: Each 1693 * driver is responsible for maintaining a reference count on the 1694 * number of outstanding references to its softc (e.g. from 1695 * processing hanging in a read or write). The detach method of the 1696 * driver decrements this counter and flags in the softc that the 1697 * driver is dying and then wakes any sleepers. It then sleeps on the 1698 * softc. Each place that can sleep must maintain the reference 1699 * count. When the reference count drops to -1 (0 is the normal value 1700 * of the reference count) then a wakeup on the softc is performed 1701 * signaling to the detach waiter that all references are gone. 1702 */ 1703 1704 /* 1705 * Called from process context when we discover that a port has 1706 * been disconnected. 1707 */ 1708 int 1709 usb_disconnect_port(struct usbd_port *up, device_t parent, int flags) 1710 { 1711 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1712 struct usbd_device *dev = up->up_dev; 1713 device_t subdev; 1714 char subdevname[16]; 1715 const char *hubname = device_xname(parent); 1716 int i, rc; 1717 1718 DPRINTFN(3, "up=%#jx dev=%#jx port=%jd", (uintptr_t)up, (uintptr_t)dev, 1719 up->up_portno, 0); 1720 1721 if (dev == NULL) { 1722 return 0; 1723 } 1724 1725 if (dev->ud_subdevlen > 0) { 1726 DPRINTFN(3, "disconnect subdevs", 0, 0, 0, 0); 1727 for (i = 0; i < dev->ud_subdevlen; i++) { 1728 if ((subdev = dev->ud_subdevs[i]) == NULL) 1729 continue; 1730 strlcpy(subdevname, device_xname(subdev), 1731 sizeof(subdevname)); 1732 KERNEL_LOCK(1, curlwp); 1733 rc = config_detach(subdev, flags); 1734 KERNEL_UNLOCK_ONE(curlwp); 1735 if (rc != 0) 1736 return rc; 1737 printf("%s: at %s", subdevname, hubname); 1738 if (up->up_portno != 0) 1739 printf(" port %d", up->up_portno); 1740 printf(" (addr %d) disconnected\n", dev->ud_addr); 1741 } 1742 KASSERT(!dev->ud_nifaces_claimed); 1743 } 1744 1745 mutex_enter(dev->ud_bus->ub_lock); 1746 dev->ud_bus->ub_devices[usb_addr2dindex(dev->ud_addr)] = NULL; 1747 up->up_dev = NULL; 1748 mutex_exit(dev->ud_bus->ub_lock); 1749 1750 usbd_add_dev_event(USB_EVENT_DEVICE_DETACH, dev); 1751 1752 usb_free_device(dev); 1753 1754 return 0; 1755 } 1756