usb_subr.c revision 1.277
1 /* $NetBSD: usb_subr.c,v 1.277 2022/04/06 22:01:45 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 (at) 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 1.277 2022/04/06 22:01:45 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 void usbd_devinfo(struct usbd_device *, int, char *, size_t); 70 Static int usbd_getnewaddr(struct usbd_bus *); 71 Static int usbd_print(void *, const char *); 72 Static int usbd_ifprint(void *, const char *); 73 Static void usbd_free_iface_data(struct usbd_device *, int); 74 75 uint32_t usb_cookie_no = 0; 76 77 Static const char * const usbd_error_strs[] = { 78 "NORMAL_COMPLETION", 79 "IN_PROGRESS", 80 "PENDING_REQUESTS", 81 "NOT_STARTED", 82 "INVAL", 83 "NOMEM", 84 "CANCELLED", 85 "BAD_ADDRESS", 86 "IN_USE", 87 "NO_ADDR", 88 "SET_ADDR_FAILED", 89 "NO_POWER", 90 "TOO_DEEP", 91 "IOERROR", 92 "NOT_CONFIGURED", 93 "TIMEOUT", 94 "SHORT_XFER", 95 "STALLED", 96 "INTERRUPTED", 97 "XXX", 98 }; 99 100 DEV_VERBOSE_DEFINE(usb); 101 102 const char * 103 usbd_errstr(usbd_status err) 104 { 105 static char buffer[5]; 106 107 if (err < USBD_ERROR_MAX) { 108 return usbd_error_strs[err]; 109 } else { 110 snprintf(buffer, sizeof(buffer), "%d", err); 111 return buffer; 112 } 113 } 114 115 static void 116 usbd_trim_spaces(char *p) 117 { 118 char *q, *e; 119 120 q = e = p; 121 while (*q == ' ') /* skip leading spaces */ 122 q++; 123 while ((*p = *q++)) /* copy string */ 124 if (*p++ != ' ') /* remember last non-space */ 125 e = p; 126 *e = '\0'; /* kill trailing spaces */ 127 } 128 129 static void 130 usbd_get_device_string(struct usbd_device *ud, uByte index, char **buf) 131 { 132 char *b; 133 usbd_status err; 134 135 b = kmem_alloc(USB_MAX_ENCODED_STRING_LEN, KM_SLEEP); 136 err = usbd_get_string0(ud, index, b, true); 137 if (err != USBD_NORMAL_COMPLETION) { 138 kmem_free(b, USB_MAX_ENCODED_STRING_LEN); 139 b = NULL; 140 } else { 141 usbd_trim_spaces(b); 142 } 143 144 *buf = b; 145 } 146 147 void 148 usbd_get_device_strings(struct usbd_device *ud) 149 { 150 usb_device_descriptor_t *udd = &ud->ud_ddesc; 151 152 usbd_get_device_string(ud, udd->iManufacturer, &ud->ud_vendor); 153 usbd_get_device_string(ud, udd->iProduct, &ud->ud_product); 154 usbd_get_device_string(ud, udd->iSerialNumber, &ud->ud_serial); 155 } 156 157 158 void 159 usbd_devinfo_vp(struct usbd_device *dev, char *v, size_t vl, char *p, 160 size_t pl, int usedev, int useencoded) 161 { 162 usb_device_descriptor_t *udd = &dev->ud_ddesc; 163 if (dev == NULL) 164 return; 165 166 v[0] = p[0] = '\0'; 167 168 if (usedev) { 169 if (usbd_get_string0(dev, udd->iManufacturer, v, useencoded) == 170 USBD_NORMAL_COMPLETION) 171 usbd_trim_spaces(v); 172 if (usbd_get_string0(dev, udd->iProduct, p, useencoded) == 173 USBD_NORMAL_COMPLETION) 174 usbd_trim_spaces(p); 175 } else { 176 if (dev->ud_vendor) { 177 strlcpy(v, dev->ud_vendor, vl); 178 } 179 if (dev->ud_product) { 180 strlcpy(p, dev->ud_product, pl); 181 } 182 } 183 if (v[0] == '\0') 184 usb_findvendor(v, vl, UGETW(udd->idVendor)); 185 if (p[0] == '\0') 186 usb_findproduct(p, pl, UGETW(udd->idVendor), 187 UGETW(udd->idProduct)); 188 } 189 190 int 191 usbd_printBCD(char *cp, size_t l, int bcd) 192 { 193 return snprintf(cp, l, "%x.%02x", bcd >> 8, bcd & 0xff); 194 } 195 196 Static void 197 usbd_devinfo(struct usbd_device *dev, int showclass, char *cp, size_t l) 198 { 199 usb_device_descriptor_t *udd = &dev->ud_ddesc; 200 char *vendor, *product; 201 int bcdDevice, bcdUSB; 202 char *ep; 203 204 vendor = kmem_alloc(USB_MAX_ENCODED_STRING_LEN * 2, KM_SLEEP); 205 product = &vendor[USB_MAX_ENCODED_STRING_LEN]; 206 207 ep = cp + l; 208 209 usbd_devinfo_vp(dev, vendor, USB_MAX_ENCODED_STRING_LEN, 210 product, USB_MAX_ENCODED_STRING_LEN, 0, 1); 211 cp += snprintf(cp, ep - cp, "%s (0x%04x) %s (0x%04x)", vendor, 212 UGETW(udd->idVendor), product, UGETW(udd->idProduct)); 213 if (showclass) 214 cp += snprintf(cp, ep - cp, ", class %d/%d", 215 udd->bDeviceClass, udd->bDeviceSubClass); 216 bcdUSB = UGETW(udd->bcdUSB); 217 bcdDevice = UGETW(udd->bcdDevice); 218 cp += snprintf(cp, ep - cp, ", rev "); 219 cp += usbd_printBCD(cp, ep - cp, bcdUSB); 220 *cp++ = '/'; 221 cp += usbd_printBCD(cp, ep - cp, bcdDevice); 222 cp += snprintf(cp, ep - cp, ", addr %d", dev->ud_addr); 223 *cp = 0; 224 kmem_free(vendor, USB_MAX_ENCODED_STRING_LEN * 2); 225 } 226 227 char * 228 usbd_devinfo_alloc(struct usbd_device *dev, int showclass) 229 { 230 char *devinfop; 231 232 devinfop = kmem_alloc(DEVINFOSIZE, KM_SLEEP); 233 usbd_devinfo(dev, showclass, devinfop, DEVINFOSIZE); 234 return devinfop; 235 } 236 237 void 238 usbd_devinfo_free(char *devinfop) 239 { 240 kmem_free(devinfop, DEVINFOSIZE); 241 } 242 243 /* Delay for a certain number of ms */ 244 void 245 usb_delay_ms_locked(struct usbd_bus *bus, u_int ms, kmutex_t *lock) 246 { 247 /* Wait at least two clock ticks so we know the time has passed. */ 248 if (bus->ub_usepolling || cold) 249 delay((ms+1) * 1000); 250 else 251 kpause("usbdly", false, (ms*hz+999)/1000 + 1, lock); 252 } 253 254 void 255 usb_delay_ms(struct usbd_bus *bus, u_int ms) 256 { 257 usb_delay_ms_locked(bus, ms, NULL); 258 } 259 260 /* Delay given a device handle. */ 261 void 262 usbd_delay_ms_locked(struct usbd_device *dev, u_int ms, kmutex_t *lock) 263 { 264 usb_delay_ms_locked(dev->ud_bus, ms, lock); 265 } 266 267 /* Delay given a device handle. */ 268 void 269 usbd_delay_ms(struct usbd_device *dev, u_int ms) 270 { 271 usb_delay_ms_locked(dev->ud_bus, ms, NULL); 272 } 273 274 usbd_status 275 usbd_reset_port(struct usbd_device *dev, int port, usb_port_status_t *ps) 276 { 277 USBHIST_FUNC(); USBHIST_CALLARGS(usbdebug, "port %jd", port, 0, 0, 0); 278 usb_device_request_t req; 279 usbd_status err; 280 int n; 281 282 req.bmRequestType = UT_WRITE_CLASS_OTHER; 283 req.bRequest = UR_SET_FEATURE; 284 USETW(req.wValue, UHF_PORT_RESET); 285 USETW(req.wIndex, port); 286 USETW(req.wLength, 0); 287 err = usbd_do_request(dev, &req, 0); 288 DPRINTFN(1, "port %jd reset done, error=%jd", port, err, 0, 0); 289 if (err) 290 return err; 291 n = 10; 292 do { 293 /* Wait for device to recover from reset. */ 294 usbd_delay_ms(dev, USB_PORT_RESET_DELAY); 295 err = usbd_get_port_status(dev, port, ps); 296 if (err) { 297 DPRINTF("get status failed %jd", err, 0, 0, 0); 298 return err; 299 } 300 /* If the device disappeared, just give up. */ 301 if (!(UGETW(ps->wPortStatus) & UPS_CURRENT_CONNECT_STATUS)) 302 return USBD_NORMAL_COMPLETION; 303 } while ((UGETW(ps->wPortChange) & UPS_C_PORT_RESET) == 0 && --n > 0); 304 if (n == 0) 305 return USBD_TIMEOUT; 306 err = usbd_clear_port_feature(dev, port, UHF_C_PORT_RESET); 307 #ifdef USB_DEBUG 308 if (err) 309 DPRINTF("clear port feature failed %jd", err, 0, 0, 0); 310 #endif 311 312 /* Wait for the device to recover from reset. */ 313 usbd_delay_ms(dev, USB_PORT_RESET_RECOVERY); 314 return err; 315 } 316 317 usb_interface_descriptor_t * 318 usbd_find_idesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx) 319 { 320 USBHIST_FUNC(); 321 USBHIST_CALLARGS(usbdebug, "iface/alt idx %jd/%jd", 322 ifaceidx, altidx, 0, 0); 323 char *p = (char *)cd; 324 char *end = p + UGETW(cd->wTotalLength); 325 usb_descriptor_t *desc; 326 usb_interface_descriptor_t *idesc; 327 int curidx, lastidx, curaidx = 0; 328 329 for (curidx = lastidx = -1; end - p >= sizeof(*desc);) { 330 desc = (usb_descriptor_t *)p; 331 332 DPRINTFN(4, "idx=%jd(%jd) altidx=%jd(%jd)", ifaceidx, curidx, 333 altidx, curaidx); 334 DPRINTFN(4, "len=%jd type=%jd", desc->bLength, 335 desc->bDescriptorType, 0, 0); 336 337 if (desc->bLength < USB_DESCRIPTOR_SIZE) 338 break; 339 if (desc->bLength > end - p) 340 break; 341 p += desc->bLength; 342 343 if (desc->bDescriptorType != UDESC_INTERFACE) 344 continue; 345 if (desc->bLength < USB_INTERFACE_DESCRIPTOR_SIZE) 346 break; 347 idesc = (usb_interface_descriptor_t *)desc; 348 349 if (idesc->bInterfaceNumber != lastidx) { 350 lastidx = idesc->bInterfaceNumber; 351 curidx++; 352 curaidx = 0; 353 } else { 354 curaidx++; 355 } 356 if (ifaceidx == curidx && altidx == curaidx) 357 return idesc; 358 } 359 360 return NULL; 361 } 362 363 usb_endpoint_descriptor_t * 364 usbd_find_edesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx, 365 int endptidx) 366 { 367 char *p = (char *)cd; 368 char *end = p + UGETW(cd->wTotalLength); 369 usb_interface_descriptor_t *idesc; 370 usb_endpoint_descriptor_t *edesc; 371 usb_descriptor_t *desc; 372 int curidx; 373 374 idesc = usbd_find_idesc(cd, ifaceidx, altidx); 375 if (idesc == NULL) 376 return NULL; 377 if (endptidx >= idesc->bNumEndpoints) /* quick exit */ 378 return NULL; 379 380 curidx = -1; 381 for (p = (char *)idesc + idesc->bLength; end - p >= sizeof(*edesc);) { 382 desc = (usb_descriptor_t *)p; 383 384 if (desc->bLength < USB_DESCRIPTOR_SIZE) 385 break; 386 if (desc->bLength > end - p) 387 break; 388 p += desc->bLength; 389 390 if (desc->bDescriptorType == UDESC_INTERFACE) 391 break; 392 if (desc->bDescriptorType != UDESC_ENDPOINT) 393 continue; 394 395 if (desc->bLength < USB_ENDPOINT_DESCRIPTOR_SIZE) 396 break; 397 edesc = (usb_endpoint_descriptor_t *)desc; 398 399 curidx++; 400 if (curidx == endptidx) 401 return edesc; 402 } 403 return NULL; 404 } 405 406 static void 407 usbd_iface_init(struct usbd_device *dev, int ifaceidx) 408 { 409 struct usbd_interface *ifc = &dev->ud_ifaces[ifaceidx]; 410 411 memset(ifc, 0, sizeof(*ifc)); 412 413 ifc->ui_dev = dev; 414 ifc->ui_idesc = NULL; 415 ifc->ui_index = 0; 416 ifc->ui_altindex = 0; 417 ifc->ui_endpoints = NULL; 418 ifc->ui_busy = 0; 419 } 420 421 static void 422 usbd_iface_fini(struct usbd_device *dev, int ifaceidx) 423 { 424 struct usbd_interface *ifc __diagused = &dev->ud_ifaces[ifaceidx]; 425 426 KASSERT(ifc->ui_dev == dev); 427 KASSERT(ifc->ui_idesc == NULL); 428 KASSERT(ifc->ui_index == 0); 429 KASSERT(ifc->ui_altindex == 0); 430 KASSERT(ifc->ui_endpoints == NULL); 431 KASSERTMSG(ifc->ui_busy == 0, "%"PRId64, ifc->ui_busy); 432 } 433 434 /* 435 * usbd_iface_lock/locked/unlock, usbd_iface_piperef/pipeunref 436 * 437 * We lock the interface while we are setting it, and we acquire a 438 * reference to the interface for each pipe opened on it. 439 * 440 * Setting the interface while pipes are open is forbidden, and 441 * opening pipes while the interface is being set is forbidden. 442 */ 443 444 bool 445 usbd_iface_locked(struct usbd_interface *iface) 446 { 447 bool locked; 448 449 mutex_enter(iface->ui_dev->ud_bus->ub_lock); 450 locked = (iface->ui_busy == -1); 451 mutex_exit(iface->ui_dev->ud_bus->ub_lock); 452 453 return locked; 454 } 455 456 static void 457 usbd_iface_exlock(struct usbd_interface *iface) 458 { 459 460 mutex_enter(iface->ui_dev->ud_bus->ub_lock); 461 KASSERTMSG(iface->ui_busy == 0, "interface is not idle," 462 " busy=%"PRId64, iface->ui_busy); 463 iface->ui_busy = -1; 464 mutex_exit(iface->ui_dev->ud_bus->ub_lock); 465 } 466 467 usbd_status 468 usbd_iface_lock(struct usbd_interface *iface) 469 { 470 usbd_status err; 471 472 mutex_enter(iface->ui_dev->ud_bus->ub_lock); 473 KASSERTMSG(iface->ui_busy != -1, "interface is locked"); 474 KASSERTMSG(iface->ui_busy >= 0, "%"PRId64, iface->ui_busy); 475 if (iface->ui_busy) { 476 err = USBD_IN_USE; 477 } else { 478 iface->ui_busy = -1; 479 err = 0; 480 } 481 mutex_exit(iface->ui_dev->ud_bus->ub_lock); 482 483 return err; 484 } 485 486 void 487 usbd_iface_unlock(struct usbd_interface *iface) 488 { 489 490 mutex_enter(iface->ui_dev->ud_bus->ub_lock); 491 KASSERTMSG(iface->ui_busy == -1, "interface is not locked," 492 " busy=%"PRId64, iface->ui_busy); 493 iface->ui_busy = 0; 494 mutex_exit(iface->ui_dev->ud_bus->ub_lock); 495 } 496 497 usbd_status 498 usbd_iface_piperef(struct usbd_interface *iface) 499 { 500 usbd_status err; 501 502 mutex_enter(iface->ui_dev->ud_bus->ub_lock); 503 KASSERTMSG(iface->ui_busy >= -1, "%"PRId64, iface->ui_busy); 504 if (iface->ui_busy == -1) { 505 err = USBD_IN_USE; 506 } else { 507 iface->ui_busy++; 508 err = 0; 509 } 510 mutex_exit(iface->ui_dev->ud_bus->ub_lock); 511 512 return err; 513 } 514 515 void 516 usbd_iface_pipeunref(struct usbd_interface *iface) 517 { 518 519 mutex_enter(iface->ui_dev->ud_bus->ub_lock); 520 KASSERTMSG(iface->ui_busy != -1, "interface is locked"); 521 KASSERTMSG(iface->ui_busy != 0, "interface not in use"); 522 KASSERTMSG(iface->ui_busy >= 1, "%"PRId64, iface->ui_busy); 523 iface->ui_busy--; 524 mutex_exit(iface->ui_dev->ud_bus->ub_lock); 525 } 526 527 usbd_status 528 usbd_fill_iface_data(struct usbd_device *dev, int ifaceidx, int altidx) 529 { 530 USBHIST_FUNC(); 531 USBHIST_CALLARGS(usbdebug, "ifaceidx=%jd altidx=%jd", 532 ifaceidx, altidx, 0, 0); 533 struct usbd_interface *ifc = &dev->ud_ifaces[ifaceidx]; 534 usb_descriptor_t *desc; 535 usb_interface_descriptor_t *idesc; 536 usb_endpoint_descriptor_t *ed; 537 struct usbd_endpoint *endpoints; 538 char *p, *end; 539 int endpt, nendpt; 540 541 KASSERT(ifc->ui_dev == dev); 542 KASSERT(usbd_iface_locked(ifc)); 543 544 idesc = usbd_find_idesc(dev->ud_cdesc, ifaceidx, altidx); 545 if (idesc == NULL) 546 return USBD_INVAL; 547 548 nendpt = idesc->bNumEndpoints; 549 DPRINTFN(4, "found idesc nendpt=%jd", nendpt, 0, 0, 0); 550 if (nendpt != 0) { 551 endpoints = kmem_alloc(nendpt * sizeof(struct usbd_endpoint), 552 KM_SLEEP); 553 } else 554 endpoints = NULL; 555 556 p = (char *)idesc + idesc->bLength; 557 end = (char *)dev->ud_cdesc + UGETW(dev->ud_cdesc->wTotalLength); 558 KASSERTMSG((char *)dev->ud_cdesc <= (char *)idesc, "cdesc=%p idesc=%p", 559 dev->ud_cdesc, idesc); 560 KASSERTMSG((char *)idesc < end, "idesc=%p end=%p", idesc, end); 561 for (endpt = 0; endpt < nendpt; endpt++) { 562 DPRINTFN(10, "endpt=%jd", endpt, 0, 0, 0); 563 for (; end - p >= sizeof(*desc); p += desc->bLength) { 564 desc = (usb_descriptor_t *)p; 565 DPRINTFN(10, "p=%#jx end=%#jx len=%jd type=%jd", 566 (uintptr_t)p, (uintptr_t)end, desc->bLength, 567 desc->bDescriptorType); 568 if (desc->bLength < sizeof(*desc)) { 569 printf("%s: bad descriptor: too short\n", 570 __func__); 571 goto bad; 572 } else if (desc->bLength > end - p) { 573 printf("%s: bad descriptor: too long\n", 574 __func__); 575 goto bad; 576 } else if (desc->bDescriptorType == UDESC_INTERFACE) { 577 printf("%s: bad descriptor: iface desc\n", 578 __func__); 579 goto bad; 580 } 581 if (desc->bLength >= USB_ENDPOINT_DESCRIPTOR_SIZE && 582 desc->bDescriptorType == UDESC_ENDPOINT) { 583 ed = (usb_endpoint_descriptor_t *)p; 584 goto found; 585 } 586 } 587 printf("%s: no desc found\n", __func__); 588 goto bad; 589 found: 590 endpoints[endpt].ue_edesc = ed; 591 if (dev->ud_speed == USB_SPEED_HIGH) { 592 u_int mps; 593 /* Control and bulk endpoints have max packet limits. */ 594 switch (UE_GET_XFERTYPE(ed->bmAttributes)) { 595 case UE_CONTROL: 596 mps = USB_2_MAX_CTRL_PACKET; 597 goto check; 598 case UE_BULK: 599 mps = USB_2_MAX_BULK_PACKET; 600 check: 601 if (UGETW(ed->wMaxPacketSize) != mps) { 602 USETW(ed->wMaxPacketSize, mps); 603 #ifdef DIAGNOSTIC 604 printf("usbd_fill_iface_data: bad max " 605 "packet size\n"); 606 #endif 607 } 608 break; 609 default: 610 break; 611 } 612 } 613 endpoints[endpt].ue_refcnt = 0; 614 endpoints[endpt].ue_toggle = 0; 615 KASSERTMSG(end - p >= ed->bLength, "p=%p end=%p length=%u", 616 p, end, ed->bLength); 617 p += ed->bLength; 618 } 619 #undef ed 620 621 /* Success! Free the old endpoints and commit the changes. */ 622 if (ifc->ui_endpoints) { 623 kmem_free(ifc->ui_endpoints, (sizeof(ifc->ui_endpoints[0]) * 624 ifc->ui_idesc->bNumEndpoints)); 625 } 626 627 ifc->ui_idesc = idesc; 628 ifc->ui_index = ifaceidx; 629 ifc->ui_altindex = altidx; 630 ifc->ui_endpoints = endpoints; 631 632 return USBD_NORMAL_COMPLETION; 633 634 bad: 635 if (endpoints) 636 kmem_free(endpoints, nendpt * sizeof(struct usbd_endpoint)); 637 return USBD_INVAL; 638 } 639 640 Static void 641 usbd_free_iface_data(struct usbd_device *dev, int ifcno) 642 { 643 struct usbd_interface *ifc = &dev->ud_ifaces[ifcno]; 644 645 KASSERT(ifc->ui_dev == dev); 646 KASSERT(ifc->ui_idesc != NULL); 647 KASSERT(usbd_iface_locked(ifc)); 648 649 if (ifc->ui_endpoints) { 650 int nendpt = ifc->ui_idesc->bNumEndpoints; 651 size_t sz = nendpt * sizeof(struct usbd_endpoint); 652 kmem_free(ifc->ui_endpoints, sz); 653 ifc->ui_endpoints = NULL; 654 } 655 656 ifc->ui_altindex = 0; 657 ifc->ui_index = 0; 658 ifc->ui_idesc = NULL; 659 } 660 661 usbd_status 662 usbd_set_config_no(struct usbd_device *dev, int no, int msg) 663 { 664 USBHIST_FUNC(); USBHIST_CALLARGS(usbdebug, "%jd", no, 0, 0, 0); 665 usb_config_descriptor_t cd; 666 usbd_status err; 667 int index; 668 669 if (no == USB_UNCONFIG_NO) 670 return usbd_set_config_index(dev, USB_UNCONFIG_INDEX, msg); 671 672 /* Figure out what config index to use. */ 673 for (index = 0; index < dev->ud_ddesc.bNumConfigurations; index++) { 674 err = usbd_get_config_desc(dev, index, &cd); 675 if (err) 676 return err; 677 if (cd.bConfigurationValue == no) 678 return usbd_set_config_index(dev, index, msg); 679 } 680 return USBD_INVAL; 681 } 682 683 usbd_status 684 usbd_set_config_index(struct usbd_device *dev, int index, int msg) 685 { 686 USBHIST_FUNC(); 687 USBHIST_CALLARGS(usbdebug, "dev=%#jx index=%jd", 688 (uintptr_t)dev, index, 0, 0); 689 usb_config_descriptor_t cd, *cdp; 690 usb_bos_descriptor_t *bdp = NULL; 691 usbd_status err; 692 int i, ifcidx, nifc, len, selfpowered, power; 693 694 695 if (index >= dev->ud_ddesc.bNumConfigurations && 696 index != USB_UNCONFIG_INDEX) { 697 /* panic? */ 698 printf("usbd_set_config_index: illegal index\n"); 699 return USBD_INVAL; 700 } 701 702 /* XXX check that all interfaces are idle */ 703 if (dev->ud_config != USB_UNCONFIG_NO) { 704 DPRINTF("free old config", 0, 0, 0, 0); 705 /* Free all configuration data structures. */ 706 nifc = dev->ud_cdesc->bNumInterface; 707 for (ifcidx = 0; ifcidx < nifc; ifcidx++) { 708 usbd_iface_exlock(&dev->ud_ifaces[ifcidx]); 709 usbd_free_iface_data(dev, ifcidx); 710 usbd_iface_unlock(&dev->ud_ifaces[ifcidx]); 711 usbd_iface_fini(dev, ifcidx); 712 } 713 kmem_free(dev->ud_ifaces, nifc * sizeof(struct usbd_interface)); 714 kmem_free(dev->ud_cdesc, UGETW(dev->ud_cdesc->wTotalLength)); 715 if (dev->ud_bdesc != NULL) 716 kmem_free(dev->ud_bdesc, 717 UGETW(dev->ud_bdesc->wTotalLength)); 718 dev->ud_ifaces = NULL; 719 dev->ud_cdesc = NULL; 720 dev->ud_bdesc = NULL; 721 dev->ud_config = USB_UNCONFIG_NO; 722 } 723 724 if (index == USB_UNCONFIG_INDEX) { 725 /* We are unconfiguring the device, so leave unallocated. */ 726 DPRINTF("set config 0", 0, 0, 0, 0); 727 err = usbd_set_config(dev, USB_UNCONFIG_NO); 728 if (err) { 729 DPRINTF("setting config=0 failed, err = %jd", err, 730 0, 0, 0); 731 } 732 return err; 733 } 734 735 /* Get the short descriptor. */ 736 err = usbd_get_config_desc(dev, index, &cd); 737 if (err) { 738 DPRINTF("get_config_desc=%jd", err, 0, 0, 0); 739 return err; 740 } 741 len = UGETW(cd.wTotalLength); 742 if (len < USB_CONFIG_DESCRIPTOR_SIZE) { 743 DPRINTF("empty short descriptor", 0, 0, 0, 0); 744 return USBD_INVAL; 745 } 746 cdp = kmem_alloc(len, KM_SLEEP); 747 748 /* Get the full descriptor. Try a few times for slow devices. */ 749 for (i = 0; i < 3; i++) { 750 err = usbd_get_desc(dev, UDESC_CONFIG, index, len, cdp); 751 if (!err) 752 break; 753 usbd_delay_ms(dev, 200); 754 } 755 if (err) { 756 DPRINTF("get_desc=%jd", err, 0, 0, 0); 757 goto bad; 758 } 759 if (cdp->bDescriptorType != UDESC_CONFIG) { 760 DPRINTF("bad desc %jd", cdp->bDescriptorType, 0, 0, 0); 761 err = USBD_INVAL; 762 goto bad; 763 } 764 if (UGETW(cdp->wTotalLength) != UGETW(cd.wTotalLength)) { 765 DPRINTF("bad len %jd", UGETW(cdp->wTotalLength), 0, 0, 0); 766 err = USBD_INVAL; 767 goto bad; 768 } 769 770 if (USB_IS_SS(dev->ud_speed)) { 771 usb_bos_descriptor_t bd; 772 773 /* get short bos desc */ 774 err = usbd_get_bos_desc(dev, index, &bd); 775 if (!err) { 776 int blen = UGETW(bd.wTotalLength); 777 if (blen < USB_BOS_DESCRIPTOR_SIZE) { 778 DPRINTF("empty bos descriptor", 0, 0, 0, 0); 779 err = USBD_INVAL; 780 goto bad; 781 } 782 bdp = kmem_alloc(blen, KM_SLEEP); 783 784 /* Get the full desc */ 785 for (i = 0; i < 3; i++) { 786 err = usbd_get_desc(dev, UDESC_BOS, index, blen, 787 bdp); 788 if (!err) 789 break; 790 usbd_delay_ms(dev, 200); 791 } 792 if (err || bdp->bDescriptorType != UDESC_BOS || 793 UGETW(bdp->wTotalLength) != UGETW(bd.wTotalLength)) { 794 DPRINTF("error %jd or bad desc %jd", err, 795 bdp->bDescriptorType, 0, 0); 796 kmem_free(bdp, blen); 797 bdp = NULL; 798 } 799 } 800 } 801 dev->ud_bdesc = bdp; 802 803 /* 804 * Figure out if the device is self or bus powered. 805 */ 806 #if 0 /* XXX various devices don't report the power state correctly */ 807 selfpowered = 0; 808 err = usbd_get_device_status(dev, &ds); 809 if (!err && (UGETW(ds.wStatus) & UDS_SELF_POWERED)) 810 selfpowered = 1; 811 #endif 812 /* 813 * Use the power state in the configuration we are going 814 * to set. This doesn't necessarily reflect the actual 815 * power state of the device; the driver can control this 816 * by choosing the appropriate configuration. 817 */ 818 selfpowered = !!(cdp->bmAttributes & UC_SELF_POWERED); 819 820 DPRINTF("addr %jd cno=%jd attr=0x%02jx, selfpowered=%jd", 821 dev->ud_addr, cdp->bConfigurationValue, cdp->bmAttributes, 822 selfpowered); 823 DPRINTF("max power=%jd", cdp->bMaxPower * 2, 0, 0, 0); 824 825 /* Check if we have enough power. */ 826 #if 0 /* this is a no-op, see above */ 827 if ((cdp->bmAttributes & UC_SELF_POWERED) && !selfpowered) { 828 if (msg) 829 printf("%s: device addr %d (config %d): " 830 "can't set self powered configuration\n", 831 device_xname(dev->ud_bus->bdev), dev->ud_addr, 832 cdp->bConfigurationValue); 833 err = USBD_NO_POWER; 834 goto bad; 835 } 836 #endif 837 #ifdef USB_DEBUG 838 if (dev->ud_powersrc == NULL) { 839 DPRINTF("No power source?", 0, 0, 0, 0); 840 err = USBD_IOERROR; 841 goto bad; 842 } 843 #endif 844 power = cdp->bMaxPower * 2; 845 if (power > dev->ud_powersrc->up_power) { 846 DPRINTF("power exceeded %jd %jd", power, 847 dev->ud_powersrc->up_power, 0, 0); 848 /* XXX print nicer message. */ 849 if (msg) 850 printf("%s: device addr %d (config %d) exceeds power " 851 "budget, %d mA > %d mA\n", 852 device_xname(dev->ud_bus->ub_usbctl), dev->ud_addr, 853 cdp->bConfigurationValue, 854 power, dev->ud_powersrc->up_power); 855 err = USBD_NO_POWER; 856 goto bad; 857 } 858 dev->ud_power = power; 859 dev->ud_selfpowered = selfpowered; 860 861 /* Set the actual configuration value. */ 862 DPRINTF("set config %jd", cdp->bConfigurationValue, 0, 0, 0); 863 err = usbd_set_config(dev, cdp->bConfigurationValue); 864 if (err) { 865 DPRINTF("setting config=%jd failed, error=%jd", 866 cdp->bConfigurationValue, err, 0, 0); 867 goto bad; 868 } 869 870 /* Allocate and fill interface data. */ 871 nifc = cdp->bNumInterface; 872 if (nifc == 0) { 873 DPRINTF("no interfaces", 0, 0, 0, 0); 874 err = USBD_INVAL; 875 goto bad; 876 } 877 dev->ud_ifaces = kmem_alloc(nifc * sizeof(struct usbd_interface), 878 KM_SLEEP); 879 DPRINTFN(5, "dev=%#jx cdesc=%#jx", (uintptr_t)dev, (uintptr_t)cdp, 880 0, 0); 881 dev->ud_cdesc = cdp; 882 dev->ud_config = cdp->bConfigurationValue; 883 for (ifcidx = 0; ifcidx < nifc; ifcidx++) { 884 usbd_iface_init(dev, ifcidx); 885 usbd_iface_exlock(&dev->ud_ifaces[ifcidx]); 886 err = usbd_fill_iface_data(dev, ifcidx, 0); 887 usbd_iface_unlock(&dev->ud_ifaces[ifcidx]); 888 if (err) { 889 while (--ifcidx >= 0) { 890 usbd_iface_exlock(&dev->ud_ifaces[ifcidx]); 891 usbd_free_iface_data(dev, ifcidx); 892 usbd_iface_unlock(&dev->ud_ifaces[ifcidx]); 893 usbd_iface_fini(dev, ifcidx); 894 } 895 kmem_free(dev->ud_ifaces, 896 nifc * sizeof(struct usbd_interface)); 897 dev->ud_ifaces = NULL; 898 goto bad; 899 } 900 } 901 902 return USBD_NORMAL_COMPLETION; 903 904 bad: 905 /* XXX Use usbd_set_config() to reset the config? */ 906 /* XXX Should we forbid USB_UNCONFIG_NO from bConfigurationValue? */ 907 dev->ud_config = USB_UNCONFIG_NO; 908 KASSERT(dev->ud_ifaces == NULL); 909 kmem_free(cdp, len); 910 dev->ud_cdesc = NULL; 911 if (bdp != NULL) { 912 kmem_free(bdp, UGETW(bdp->wTotalLength)); 913 dev->ud_bdesc = NULL; 914 } 915 return err; 916 } 917 918 /* XXX add function for alternate settings */ 919 920 usbd_status 921 usbd_setup_pipe(struct usbd_device *dev, struct usbd_interface *iface, 922 struct usbd_endpoint *ep, int ival, struct usbd_pipe **pipe) 923 { 924 return usbd_setup_pipe_flags(dev, iface, ep, ival, pipe, 0); 925 } 926 927 usbd_status 928 usbd_setup_pipe_flags(struct usbd_device *dev, struct usbd_interface *iface, 929 struct usbd_endpoint *ep, int ival, struct usbd_pipe **pipe, uint8_t flags) 930 { 931 USBHIST_FUNC(); 932 USBHIST_CALLARGS(usbdebug, "dev=%#jx addr=%jd iface=%#jx ep=%#jx", 933 (uintptr_t)dev, dev->ud_addr, (uintptr_t)iface, (uintptr_t)ep); 934 struct usbd_pipe *p = NULL; 935 bool ep_acquired = false; 936 usbd_status err; 937 938 /* Block exclusive use of the endpoint by later pipes. */ 939 err = usbd_endpoint_acquire(dev, ep, flags & USBD_EXCLUSIVE_USE); 940 if (err) 941 goto out; 942 ep_acquired = true; 943 944 p = kmem_alloc(dev->ud_bus->ub_pipesize, KM_SLEEP); 945 DPRINTFN(1, "pipe=%#jx", (uintptr_t)p, 0, 0, 0); 946 p->up_dev = dev; 947 p->up_iface = iface; 948 p->up_endpoint = ep; 949 p->up_intrxfer = NULL; 950 p->up_running = 0; 951 p->up_aborting = 0; 952 p->up_serialise = true; 953 p->up_repeat = 0; 954 p->up_interval = ival; 955 p->up_flags = flags; 956 SIMPLEQ_INIT(&p->up_queue); 957 p->up_callingxfer = NULL; 958 cv_init(&p->up_callingcv, "usbpipecb"); 959 p->up_abortlwp = NULL; 960 961 err = dev->ud_bus->ub_methods->ubm_open(p); 962 if (err) { 963 DPRINTF("endpoint=%#jx failed, error=%jd", 964 (uintptr_t)ep->ue_edesc->bEndpointAddress, err, 0, 0); 965 goto out; 966 } 967 968 KASSERT(p->up_methods->upm_start || p->up_serialise == false); 969 970 usb_init_task(&p->up_async_task, usbd_clear_endpoint_stall_task, p, 971 USB_TASKQ_MPSAFE); 972 DPRINTFN(1, "pipe=%#jx", (uintptr_t)p, 0, 0, 0); 973 *pipe = p; 974 p = NULL; /* handed off to caller */ 975 ep_acquired = false; /* handed off to pipe */ 976 err = USBD_NORMAL_COMPLETION; 977 978 out: if (p) { 979 KASSERT(p->up_abortlwp == NULL); 980 KASSERT(p->up_callingxfer == NULL); 981 cv_destroy(&p->up_callingcv); 982 kmem_free(p, dev->ud_bus->ub_pipesize); 983 } 984 if (ep_acquired) 985 usbd_endpoint_release(dev, ep); 986 return err; 987 } 988 989 usbd_status 990 usbd_endpoint_acquire(struct usbd_device *dev, struct usbd_endpoint *ep, 991 int flags) 992 { 993 usbd_status err; 994 995 mutex_enter(dev->ud_bus->ub_lock); 996 if (ep->ue_refcnt == INT_MAX) { 997 err = USBD_IN_USE; /* XXX rule out or switch to 64-bit */ 998 } else if ((flags & USBD_EXCLUSIVE_USE) && ep->ue_refcnt) { 999 err = USBD_IN_USE; 1000 } else { 1001 ep->ue_refcnt++; 1002 err = 0; 1003 } 1004 mutex_exit(dev->ud_bus->ub_lock); 1005 1006 return err; 1007 } 1008 1009 void 1010 usbd_endpoint_release(struct usbd_device *dev, struct usbd_endpoint *ep) 1011 { 1012 1013 mutex_enter(dev->ud_bus->ub_lock); 1014 KASSERT(ep->ue_refcnt); 1015 ep->ue_refcnt--; 1016 mutex_exit(dev->ud_bus->ub_lock); 1017 } 1018 1019 /* Abort and close the device control pipe. */ 1020 void 1021 usbd_kill_pipe(struct usbd_pipe *pipe) 1022 { 1023 1024 usbd_abort_pipe(pipe); 1025 usbd_close_pipe(pipe); 1026 } 1027 1028 int 1029 usbd_getnewaddr(struct usbd_bus *bus) 1030 { 1031 int addr; 1032 1033 for (addr = 1; addr < USB_MAX_DEVICES; addr++) { 1034 size_t dindex = usb_addr2dindex(addr); 1035 if (bus->ub_devices[dindex] == NULL) 1036 return addr; 1037 } 1038 return -1; 1039 } 1040 1041 usbd_status 1042 usbd_attach_roothub(device_t parent, struct usbd_device *dev) 1043 { 1044 struct usb_attach_arg uaa; 1045 usb_device_descriptor_t *dd = &dev->ud_ddesc; 1046 device_t dv; 1047 1048 uaa.uaa_device = dev; 1049 uaa.uaa_usegeneric = 0; 1050 uaa.uaa_port = 0; 1051 uaa.uaa_vendor = UGETW(dd->idVendor); 1052 uaa.uaa_product = UGETW(dd->idProduct); 1053 uaa.uaa_release = UGETW(dd->bcdDevice); 1054 uaa.uaa_class = dd->bDeviceClass; 1055 uaa.uaa_subclass = dd->bDeviceSubClass; 1056 uaa.uaa_proto = dd->bDeviceProtocol; 1057 1058 KERNEL_LOCK(1, curlwp); 1059 dv = config_found(parent, &uaa, NULL, 1060 CFARGS(.iattr = "usbroothubif")); 1061 KERNEL_UNLOCK_ONE(curlwp); 1062 if (dv) { 1063 dev->ud_subdevs = kmem_alloc(sizeof(dv), KM_SLEEP); 1064 dev->ud_subdevs[0] = dv; 1065 dev->ud_subdevlen = 1; 1066 } 1067 return USBD_NORMAL_COMPLETION; 1068 } 1069 1070 static void 1071 usbd_properties(device_t dv, struct usbd_device *dev) 1072 { 1073 usb_device_descriptor_t *dd = &dev->ud_ddesc; 1074 prop_dictionary_t dict = device_properties(dv); 1075 int class, subclass, release, proto, vendor, product; 1076 1077 class = dd->bDeviceClass; 1078 subclass = dd->bDeviceSubClass; 1079 release = UGETW(dd->bcdDevice); 1080 proto = dd->bDeviceProtocol; 1081 vendor = UGETW(dd->idVendor); 1082 product = UGETW(dd->idProduct); 1083 1084 prop_dictionary_set_uint8(dict, "class", class); 1085 prop_dictionary_set_uint8(dict, "subclass", subclass); 1086 prop_dictionary_set_uint16(dict, "release", release); 1087 prop_dictionary_set_uint8(dict, "proto", proto); 1088 prop_dictionary_set_uint16(dict, "vendor-id", vendor); 1089 prop_dictionary_set_uint16(dict, "product-id", product); 1090 1091 if (dev->ud_vendor) { 1092 prop_dictionary_set_string(dict, 1093 "vendor-string", dev->ud_vendor); 1094 } 1095 if (dev->ud_product) { 1096 prop_dictionary_set_string(dict, 1097 "product-string", dev->ud_product); 1098 } 1099 if (dev->ud_serial) { 1100 prop_dictionary_set_string(dict, 1101 "serialnumber", dev->ud_serial); 1102 } 1103 } 1104 1105 static usbd_status 1106 usbd_attachwholedevice(device_t parent, struct usbd_device *dev, int port, 1107 int usegeneric) 1108 { 1109 struct usb_attach_arg uaa; 1110 usb_device_descriptor_t *dd = &dev->ud_ddesc; 1111 device_t dv; 1112 int dlocs[USBDEVIFCF_NLOCS]; 1113 1114 KASSERT(usb_in_event_thread(parent)); 1115 1116 uaa.uaa_device = dev; 1117 uaa.uaa_usegeneric = usegeneric; 1118 uaa.uaa_port = port; 1119 uaa.uaa_vendor = UGETW(dd->idVendor); 1120 uaa.uaa_product = UGETW(dd->idProduct); 1121 uaa.uaa_release = UGETW(dd->bcdDevice); 1122 uaa.uaa_class = dd->bDeviceClass; 1123 uaa.uaa_subclass = dd->bDeviceSubClass; 1124 uaa.uaa_proto = dd->bDeviceProtocol; 1125 1126 dlocs[USBDEVIFCF_PORT] = uaa.uaa_port; 1127 dlocs[USBDEVIFCF_VENDOR] = uaa.uaa_vendor; 1128 dlocs[USBDEVIFCF_PRODUCT] = uaa.uaa_product; 1129 dlocs[USBDEVIFCF_RELEASE] = uaa.uaa_release; 1130 /* the rest is historical ballast */ 1131 dlocs[USBDEVIFCF_CONFIGURATION] = -1; 1132 dlocs[USBDEVIFCF_INTERFACE] = -1; 1133 1134 config_pending_incr(parent); 1135 1136 KERNEL_LOCK(1, curlwp); 1137 dv = config_found(parent, &uaa, usbd_print, 1138 CFARGS(.submatch = config_stdsubmatch, 1139 .iattr = "usbdevif", 1140 .locators = dlocs)); 1141 KERNEL_UNLOCK_ONE(curlwp); 1142 if (dv) { 1143 dev->ud_subdevs = kmem_alloc(sizeof(dv), KM_SLEEP); 1144 dev->ud_subdevs[0] = dv; 1145 dev->ud_subdevlen = 1; 1146 dev->ud_nifaces_claimed = 1; /* XXX */ 1147 usbd_properties(dv, dev); 1148 } 1149 config_pending_decr(parent); 1150 return USBD_NORMAL_COMPLETION; 1151 } 1152 1153 static usbd_status 1154 usbd_attachinterfaces(device_t parent, struct usbd_device *dev, 1155 int port, const int *locators) 1156 { 1157 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1158 struct usbif_attach_arg uiaa; 1159 int ilocs[USBIFIFCF_NLOCS]; 1160 usb_device_descriptor_t *dd = &dev->ud_ddesc; 1161 int nifaces; 1162 struct usbd_interface **ifaces; 1163 int i, j, loc; 1164 device_t dv; 1165 1166 KASSERT(usb_in_event_thread(parent)); 1167 1168 nifaces = dev->ud_cdesc->bNumInterface; 1169 ifaces = kmem_zalloc(nifaces * sizeof(*ifaces), KM_SLEEP); 1170 for (i = 0; i < nifaces; i++) { 1171 if (!dev->ud_subdevs[i]) { 1172 ifaces[i] = &dev->ud_ifaces[i]; 1173 } 1174 DPRINTF("interface %jd %#jx", i, (uintptr_t)ifaces[i], 0, 0); 1175 } 1176 1177 1178 uiaa.uiaa_device = dev; 1179 uiaa.uiaa_port = port; 1180 uiaa.uiaa_vendor = UGETW(dd->idVendor); 1181 uiaa.uiaa_product = UGETW(dd->idProduct); 1182 uiaa.uiaa_release = UGETW(dd->bcdDevice); 1183 uiaa.uiaa_configno = dev->ud_cdesc->bConfigurationValue; 1184 uiaa.uiaa_ifaces = ifaces; 1185 uiaa.uiaa_nifaces = nifaces; 1186 ilocs[USBIFIFCF_PORT] = uiaa.uiaa_port; 1187 ilocs[USBIFIFCF_VENDOR] = uiaa.uiaa_vendor; 1188 ilocs[USBIFIFCF_PRODUCT] = uiaa.uiaa_product; 1189 ilocs[USBIFIFCF_RELEASE] = uiaa.uiaa_release; 1190 ilocs[USBIFIFCF_CONFIGURATION] = uiaa.uiaa_configno; 1191 1192 for (i = 0; i < nifaces; i++) { 1193 if (!ifaces[i]) { 1194 DPRINTF("interface %jd claimed", i, 0, 0, 0); 1195 continue; /* interface already claimed */ 1196 } 1197 uiaa.uiaa_iface = ifaces[i]; 1198 uiaa.uiaa_class = ifaces[i]->ui_idesc->bInterfaceClass; 1199 uiaa.uiaa_subclass = ifaces[i]->ui_idesc->bInterfaceSubClass; 1200 uiaa.uiaa_proto = ifaces[i]->ui_idesc->bInterfaceProtocol; 1201 uiaa.uiaa_ifaceno = ifaces[i]->ui_idesc->bInterfaceNumber; 1202 1203 DPRINTF("searching for interface %jd...", i, 0, 0, 0); 1204 DPRINTF("class %jx subclass %jx proto %jx ifaceno %jd", 1205 uiaa.uiaa_class, uiaa.uiaa_subclass, uiaa.uiaa_proto, 1206 uiaa.uiaa_ifaceno); 1207 ilocs[USBIFIFCF_INTERFACE] = uiaa.uiaa_ifaceno; 1208 if (locators != NULL) { 1209 loc = locators[USBIFIFCF_CONFIGURATION]; 1210 if (loc != USBIFIFCF_CONFIGURATION_DEFAULT && 1211 loc != uiaa.uiaa_configno) 1212 continue; 1213 loc = locators[USBIFIFCF_INTERFACE]; 1214 if (loc != USBIFIFCF_INTERFACE_DEFAULT && 1215 loc != uiaa.uiaa_ifaceno) 1216 continue; 1217 } 1218 KERNEL_LOCK(1, curlwp); 1219 dv = config_found(parent, &uiaa, usbd_ifprint, 1220 CFARGS(.submatch = config_stdsubmatch, 1221 .iattr = "usbifif", 1222 .locators = ilocs)); 1223 KERNEL_UNLOCK_ONE(curlwp); 1224 if (!dv) 1225 continue; 1226 1227 usbd_properties(dv, dev); 1228 1229 /* claim */ 1230 ifaces[i] = NULL; 1231 /* account for ifaces claimed by the driver behind our back */ 1232 for (j = 0; j < nifaces; j++) { 1233 1234 if (!ifaces[j] && !dev->ud_subdevs[j]) { 1235 DPRINTF("interface %jd claimed behind our back", 1236 j, 0, 0, 0); 1237 dev->ud_subdevs[j] = dv; 1238 dev->ud_nifaces_claimed++; 1239 } 1240 } 1241 } 1242 1243 kmem_free(ifaces, nifaces * sizeof(*ifaces)); 1244 return USBD_NORMAL_COMPLETION; 1245 } 1246 1247 usbd_status 1248 usbd_probe_and_attach(device_t parent, struct usbd_device *dev, 1249 int port, int addr) 1250 { 1251 USBHIST_FUNC(); 1252 USBHIST_CALLARGS(usbdebug, "trying device specific drivers", 0, 0, 0, 0); 1253 usb_device_descriptor_t *dd = &dev->ud_ddesc; 1254 int confi, nifaces; 1255 usbd_status err; 1256 1257 KASSERT(usb_in_event_thread(parent)); 1258 1259 /* First try with device specific drivers. */ 1260 err = usbd_attachwholedevice(parent, dev, port, 0); 1261 if (dev->ud_nifaces_claimed || err) 1262 return err; 1263 DPRINTF("no device specific driver found", 0, 0, 0, 0); 1264 1265 DPRINTF("looping over %jd configurations", dd->bNumConfigurations, 1266 0, 0, 0); 1267 for (confi = 0; confi < dd->bNumConfigurations; confi++) { 1268 DPRINTFN(1, "trying config idx=%jd", confi, 0, 0, 0); 1269 err = usbd_set_config_index(dev, confi, 1); 1270 if (err) { 1271 DPRINTF("port %jd, set config at addr %jd failed, " 1272 "error=%jd", port, addr, err, 0); 1273 printf("%s: port %d, set config at addr %d failed\n", 1274 device_xname(parent), port, addr); 1275 return err; 1276 } 1277 nifaces = dev->ud_cdesc->bNumInterface; 1278 dev->ud_subdevs = kmem_zalloc(nifaces * sizeof(device_t), 1279 KM_SLEEP); 1280 dev->ud_subdevlen = nifaces; 1281 1282 err = usbd_attachinterfaces(parent, dev, port, NULL); 1283 1284 if (dev->ud_subdevs && dev->ud_nifaces_claimed == 0) { 1285 kmem_free(dev->ud_subdevs, 1286 dev->ud_subdevlen * sizeof(device_t)); 1287 dev->ud_subdevs = 0; 1288 dev->ud_subdevlen = 0; 1289 } 1290 if (dev->ud_nifaces_claimed || err) 1291 return err; 1292 } 1293 /* No interfaces were attached in any of the configurations. */ 1294 1295 if (dd->bNumConfigurations > 1) /* don't change if only 1 config */ 1296 usbd_set_config_index(dev, 0, 0); 1297 1298 DPRINTF("no interface drivers found", 0, 0, 0, 0); 1299 1300 /* Finally try the generic driver. */ 1301 err = usbd_attachwholedevice(parent, dev, port, 1); 1302 1303 /* 1304 * The generic attach failed, but leave the device as it is. 1305 * We just did not find any drivers, that's all. The device is 1306 * fully operational and not harming anyone. 1307 */ 1308 DPRINTF("generic attach failed", 0, 0, 0, 0); 1309 1310 return USBD_NORMAL_COMPLETION; 1311 } 1312 1313 /** 1314 * Called from uhub_rescan(). usbd_new_device() for the target dev must be 1315 * called before calling this. 1316 */ 1317 usbd_status 1318 usbd_reattach_device(device_t parent, struct usbd_device *dev, 1319 int port, const int *locators) 1320 { 1321 int i, loc; 1322 1323 USBHIST_FUNC(); 1324 USBHIST_CALLARGS(usbdebug, "uhub%jd port=%jd", 1325 device_unit(parent), port, 0, 0); 1326 1327 KASSERT(usb_in_event_thread(parent)); 1328 1329 if (locators != NULL) { 1330 loc = locators[USBIFIFCF_PORT]; 1331 if (loc != USBIFIFCF_PORT_DEFAULT && loc != port) 1332 return USBD_NORMAL_COMPLETION; 1333 loc = locators[USBIFIFCF_VENDOR]; 1334 if (loc != USBIFIFCF_VENDOR_DEFAULT && 1335 loc != UGETW(dev->ud_ddesc.idVendor)) 1336 return USBD_NORMAL_COMPLETION; 1337 loc = locators[USBIFIFCF_PRODUCT]; 1338 if (loc != USBIFIFCF_PRODUCT_DEFAULT && 1339 loc != UGETW(dev->ud_ddesc.idProduct)) 1340 return USBD_NORMAL_COMPLETION; 1341 loc = locators[USBIFIFCF_RELEASE]; 1342 if (loc != USBIFIFCF_RELEASE_DEFAULT && 1343 loc != UGETW(dev->ud_ddesc.bcdDevice)) 1344 return USBD_NORMAL_COMPLETION; 1345 } 1346 if (dev->ud_subdevlen == 0) { 1347 /* XXX: check USBIFIFCF_CONFIGURATION and 1348 * USBIFIFCF_INTERFACE too */ 1349 return usbd_probe_and_attach(parent, dev, port, dev->ud_addr); 1350 } else if (dev->ud_subdevlen != dev->ud_cdesc->bNumInterface) { 1351 /* device-specific or generic driver is already attached. */ 1352 return USBD_NORMAL_COMPLETION; 1353 } 1354 /* Does the device have unconfigured interfaces? */ 1355 for (i = 0; i < dev->ud_subdevlen; i++) { 1356 if (dev->ud_subdevs[i] == NULL) { 1357 break; 1358 } 1359 } 1360 if (i >= dev->ud_subdevlen) 1361 return USBD_NORMAL_COMPLETION; 1362 return usbd_attachinterfaces(parent, dev, port, locators); 1363 } 1364 1365 /* 1366 * Called when a new device has been put in the powered state, 1367 * but not yet in the addressed state. 1368 * Get initial descriptor, set the address, get full descriptor, 1369 * and attach a driver. 1370 */ 1371 usbd_status 1372 usbd_new_device(device_t parent, struct usbd_bus *bus, int depth, int speed, 1373 int port, struct usbd_port *up) 1374 { 1375 USBHIST_FUNC(); 1376 USBHIST_CALLARGS(usbdebug, "bus=%#jx port=%jd depth=%jd speed=%jd", 1377 (uintptr_t)bus, port, depth, speed); 1378 struct usbd_device *dev, *adev; 1379 struct usbd_device *hub; 1380 usb_device_descriptor_t *dd; 1381 usb_port_status_t ps; 1382 usbd_status err; 1383 int addr; 1384 int i; 1385 int p; 1386 1387 KASSERT(usb_in_event_thread(parent)); 1388 1389 if (bus->ub_methods->ubm_newdev != NULL) 1390 return (bus->ub_methods->ubm_newdev)(parent, bus, depth, speed, 1391 port, up); 1392 1393 addr = usbd_getnewaddr(bus); 1394 if (addr < 0) { 1395 printf("%s: No free USB addresses, new device ignored.\n", 1396 device_xname(bus->ub_usbctl)); 1397 return USBD_NO_ADDR; 1398 } 1399 1400 dev = kmem_zalloc(sizeof(*dev), KM_SLEEP); 1401 dev->ud_bus = bus; 1402 1403 /* Set up default endpoint handle. */ 1404 dev->ud_ep0.ue_edesc = &dev->ud_ep0desc; 1405 1406 /* Set up default endpoint descriptor. */ 1407 dev->ud_ep0desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 1408 dev->ud_ep0desc.bDescriptorType = UDESC_ENDPOINT; 1409 dev->ud_ep0desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 1410 dev->ud_ep0desc.bmAttributes = UE_CONTROL; 1411 /* 1412 * temporary, will be fixed after first descriptor fetch 1413 * (which uses 64 bytes so it shouldn't be less), 1414 * highspeed devices must support 64 byte packets anyway 1415 */ 1416 if (speed == USB_SPEED_HIGH || speed == USB_SPEED_FULL) 1417 USETW(dev->ud_ep0desc.wMaxPacketSize, 64); 1418 else 1419 USETW(dev->ud_ep0desc.wMaxPacketSize, USB_MAX_IPACKET); 1420 1421 dev->ud_ep0desc.bInterval = 0; 1422 1423 /* doesn't matter, just don't leave it uninitialized */ 1424 dev->ud_ep0.ue_toggle = 0; 1425 1426 dev->ud_quirks = &usbd_no_quirk; 1427 dev->ud_addr = USB_START_ADDR; 1428 dev->ud_ddesc.bMaxPacketSize = 0; 1429 dev->ud_depth = depth; 1430 dev->ud_powersrc = up; 1431 dev->ud_myhub = up->up_parent; 1432 1433 up->up_dev = dev; 1434 1435 /* Locate port on upstream high speed hub */ 1436 for (adev = dev, hub = up->up_parent; 1437 hub != NULL && hub->ud_speed != USB_SPEED_HIGH; 1438 adev = hub, hub = hub->ud_myhub) 1439 ; 1440 if (hub) { 1441 for (p = 1; p <= hub->ud_hub->uh_hubdesc.bNbrPorts; p++) { 1442 if (hub->ud_hub->uh_ports[p - 1].up_dev == adev) { 1443 dev->ud_myhsport = 1444 &hub->ud_hub->uh_ports[p - 1]; 1445 goto found; 1446 } 1447 } 1448 panic("usbd_new_device: cannot find HS port"); 1449 found: 1450 DPRINTFN(1, "high speed port %jd", p, 0, 0, 0); 1451 } else { 1452 dev->ud_myhsport = NULL; 1453 } 1454 dev->ud_speed = speed; 1455 dev->ud_langid = USBD_NOLANG; 1456 dev->ud_cookie.cookie = ++usb_cookie_no; 1457 1458 /* Establish the default pipe. */ 1459 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1460 &dev->ud_pipe0, USBD_MPSAFE); 1461 if (err) { 1462 usbd_remove_device(dev, up); 1463 return err; 1464 } 1465 1466 dd = &dev->ud_ddesc; 1467 /* Try a few times in case the device is slow (i.e. outside specs.) */ 1468 for (i = 0; i < 10; i++) { 1469 /* Get the first 8 bytes of the device descriptor. */ 1470 err = usbd_get_initial_ddesc(dev, dd); 1471 if (!err) 1472 break; 1473 /* 1474 * The root hub can never fail to give the initial descriptor, 1475 * but assert it just in case. 1476 */ 1477 KASSERT(up->up_parent); 1478 usbd_delay_ms(dev, 200); 1479 if ((i & 3) == 3) 1480 usbd_reset_port(up->up_parent, port, &ps); 1481 } 1482 if (err) { 1483 DPRINTF("addr=%jd, getting first desc failed: %jd", addr, err, 1484 0, 0); 1485 usbd_remove_device(dev, up); 1486 return err; 1487 } 1488 1489 /* Windows resets the port here, do likewise */ 1490 if (up->up_parent) 1491 usbd_reset_port(up->up_parent, port, &ps); 1492 1493 if (speed == USB_SPEED_HIGH) { 1494 /* Max packet size must be 64 (sec 5.5.3). */ 1495 if (dd->bMaxPacketSize != USB_2_MAX_CTRL_PACKET) { 1496 #ifdef DIAGNOSTIC 1497 printf("usbd_new_device: addr=%d bad max packet " 1498 "size=%d. adjusting to %d.\n", 1499 addr, dd->bMaxPacketSize, USB_2_MAX_CTRL_PACKET); 1500 #endif 1501 dd->bMaxPacketSize = USB_2_MAX_CTRL_PACKET; 1502 } 1503 } 1504 1505 DPRINTF("adding unit addr=%jd, rev=%02jx, class=%jd, subclass=%jd", 1506 addr, UGETW(dd->bcdUSB), dd->bDeviceClass, dd->bDeviceSubClass); 1507 DPRINTF("protocol=%jd, maxpacket=%jd, len=%jd, speed=%jd", 1508 dd->bDeviceProtocol, dd->bMaxPacketSize, dd->bLength, dev->ud_speed); 1509 1510 if (dd->bDescriptorType != UDESC_DEVICE) { 1511 /* Illegal device descriptor */ 1512 DPRINTF("illegal descriptor %jd", dd->bDescriptorType, 0, 0, 0); 1513 usbd_remove_device(dev, up); 1514 return USBD_INVAL; 1515 } 1516 1517 if (dd->bLength < USB_DEVICE_DESCRIPTOR_SIZE) { 1518 DPRINTF("bad length %jd", dd->bLength, 0, 0, 0); 1519 usbd_remove_device(dev, up); 1520 return USBD_INVAL; 1521 } 1522 1523 USETW(dev->ud_ep0desc.wMaxPacketSize, dd->bMaxPacketSize); 1524 1525 /* Re-establish the default pipe with the new MPS. */ 1526 usbd_kill_pipe(dev->ud_pipe0); 1527 dev->ud_pipe0 = NULL; 1528 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1529 &dev->ud_pipe0, USBD_MPSAFE); 1530 if (err) { 1531 DPRINTF("setup default pipe failed err %jd", err, 0, 0, 0); 1532 usbd_remove_device(dev, up); 1533 return err; 1534 } 1535 1536 /* Set the address */ 1537 DPRINTFN(5, "setting device address=%jd", addr, 0, 0, 0); 1538 err = usbd_set_address(dev, addr); 1539 if (err) { 1540 DPRINTF("set address %jd failed, err = %jd", addr, err, 0, 0); 1541 err = USBD_SET_ADDR_FAILED; 1542 usbd_remove_device(dev, up); 1543 return err; 1544 } 1545 1546 /* Allow device time to set new address */ 1547 usbd_delay_ms(dev, USB_SET_ADDRESS_SETTLE); 1548 dev->ud_addr = addr; /* new device address now */ 1549 bus->ub_devices[usb_addr2dindex(addr)] = dev; 1550 1551 /* Re-establish the default pipe with the new address. */ 1552 usbd_kill_pipe(dev->ud_pipe0); 1553 dev->ud_pipe0 = NULL; 1554 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1555 &dev->ud_pipe0, USBD_MPSAFE); 1556 if (err) { 1557 DPRINTF("setup default pipe failed, err = %jd", err, 0, 0, 0); 1558 usbd_remove_device(dev, up); 1559 return err; 1560 } 1561 1562 err = usbd_reload_device_desc(dev); 1563 if (err) { 1564 DPRINTF("addr=%jd, getting full desc failed, err = %jd", addr, 1565 err, 0, 0); 1566 usbd_remove_device(dev, up); 1567 return err; 1568 } 1569 1570 /* Assume 100mA bus powered for now. Changed when configured. */ 1571 dev->ud_power = USB_MIN_POWER; 1572 dev->ud_selfpowered = 0; 1573 1574 DPRINTF("new dev (addr %jd), dev=%#jx, parent=%#jx", 1575 addr, (uintptr_t)dev, (uintptr_t)parent, 0); 1576 1577 usbd_get_device_strings(dev); 1578 1579 usbd_add_dev_event(USB_EVENT_DEVICE_ATTACH, dev); 1580 1581 if (port == 0) { /* root hub */ 1582 KASSERT(addr == 1); 1583 usbd_attach_roothub(parent, dev); 1584 return USBD_NORMAL_COMPLETION; 1585 } 1586 1587 err = usbd_probe_and_attach(parent, dev, port, addr); 1588 if (err) { 1589 usbd_remove_device(dev, up); 1590 return err; 1591 } 1592 1593 return USBD_NORMAL_COMPLETION; 1594 } 1595 1596 usbd_status 1597 usbd_reload_device_desc(struct usbd_device *dev) 1598 { 1599 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1600 usb_device_descriptor_t *udd = &dev->ud_ddesc; 1601 usbd_status err; 1602 1603 /* Get the full device descriptor. */ 1604 err = usbd_get_device_desc(dev, udd); 1605 if (err) 1606 return err; 1607 if (udd->bDescriptorType != UDESC_DEVICE) 1608 return USBD_INVAL; 1609 if (udd->bLength < USB_DEVICE_DESCRIPTOR_SIZE) 1610 return USBD_INVAL; 1611 1612 DPRINTFN(15, "bLength %5ju", udd->bLength, 0, 0, 0); 1613 DPRINTFN(15, "bDescriptorType %5ju", udd->bDescriptorType, 0, 0, 0); 1614 DPRINTFN(15, "bcdUSB %2jx.%02jx", udd->bcdUSB[1], 1615 udd->bcdUSB[0], 0, 0); 1616 DPRINTFN(15, "bDeviceClass %5ju", udd->bDeviceClass, 0, 0, 0); 1617 DPRINTFN(15, "bDeviceSubClass %5ju", udd->bDeviceSubClass, 0, 0, 0); 1618 DPRINTFN(15, "bDeviceProtocol %5ju", udd->bDeviceProtocol, 0, 0, 0); 1619 DPRINTFN(15, "bMaxPacketSize0 %5ju", udd->bMaxPacketSize, 0, 0, 0); 1620 DPRINTFN(15, "idVendor 0x%02jx 0x%02jx", 1621 udd->idVendor[0], 1622 udd->idVendor[1], 0, 0); 1623 DPRINTFN(15, "idProduct 0x%02jx 0x%02jx", 1624 udd->idProduct[0], 1625 udd->idProduct[1], 0, 0); 1626 DPRINTFN(15, "bcdDevice %2jx.%02jx", udd->bcdDevice[1], 1627 udd->bcdDevice[0], 0, 0); 1628 DPRINTFN(15, "iManufacturer %5ju", udd->iManufacturer, 0, 0, 0); 1629 DPRINTFN(15, "iProduct %5ju", udd->iProduct, 0, 0, 0); 1630 DPRINTFN(15, "iSerial %5ju", udd->iSerialNumber, 0, 0, 0); 1631 DPRINTFN(15, "bNumConfigurations %5ju", udd->bNumConfigurations, 0, 0, 1632 0); 1633 1634 /* Figure out what's wrong with this device. */ 1635 dev->ud_quirks = usbd_find_quirk(udd); 1636 1637 return USBD_NORMAL_COMPLETION; 1638 } 1639 1640 void 1641 usbd_remove_device(struct usbd_device *dev, struct usbd_port *up) 1642 { 1643 1644 USBHIST_FUNC(); 1645 USBHIST_CALLARGS(usbdebug, "dev %#jx up %#jx", 1646 (uintptr_t)dev, (uintptr_t)up, 0, 0); 1647 1648 if (dev->ud_pipe0 != NULL) 1649 usbd_kill_pipe(dev->ud_pipe0); 1650 up->up_dev = NULL; 1651 dev->ud_bus->ub_devices[usb_addr2dindex(dev->ud_addr)] = NULL; 1652 1653 if (dev->ud_vendor != NULL) { 1654 kmem_free(dev->ud_vendor, USB_MAX_ENCODED_STRING_LEN); 1655 } 1656 if (dev->ud_product != NULL) { 1657 kmem_free(dev->ud_product, USB_MAX_ENCODED_STRING_LEN); 1658 } 1659 if (dev->ud_serial != NULL) { 1660 kmem_free(dev->ud_serial, USB_MAX_ENCODED_STRING_LEN); 1661 } 1662 kmem_free(dev, sizeof(*dev)); 1663 } 1664 1665 int 1666 usbd_print(void *aux, const char *pnp) 1667 { 1668 struct usb_attach_arg *uaa = aux; 1669 1670 if (pnp) { 1671 #define USB_DEVINFO 1024 1672 char *devinfo; 1673 if (!uaa->uaa_usegeneric) 1674 return QUIET; 1675 devinfo = kmem_alloc(USB_DEVINFO, KM_SLEEP); 1676 usbd_devinfo(uaa->uaa_device, 1, devinfo, USB_DEVINFO); 1677 aprint_normal("%s, %s", devinfo, pnp); 1678 kmem_free(devinfo, USB_DEVINFO); 1679 } 1680 aprint_normal(" port %d", uaa->uaa_port); 1681 #if 0 1682 /* 1683 * It gets very crowded with these locators on the attach line. 1684 * They are not really needed since they are printed in the clear 1685 * by each driver. 1686 */ 1687 if (uaa->uaa_vendor != UHUB_UNK_VENDOR) 1688 aprint_normal(" vendor 0x%04x", uaa->uaa_vendor); 1689 if (uaa->uaa_product != UHUB_UNK_PRODUCT) 1690 aprint_normal(" product 0x%04x", uaa->uaa_product); 1691 if (uaa->uaa_release != UHUB_UNK_RELEASE) 1692 aprint_normal(" release 0x%04x", uaa->uaa_release); 1693 #endif 1694 return UNCONF; 1695 } 1696 1697 int 1698 usbd_ifprint(void *aux, const char *pnp) 1699 { 1700 struct usbif_attach_arg *uiaa = aux; 1701 1702 if (pnp) 1703 return QUIET; 1704 aprint_normal(" port %d", uiaa->uiaa_port); 1705 aprint_normal(" configuration %d", uiaa->uiaa_configno); 1706 aprint_normal(" interface %d", uiaa->uiaa_ifaceno); 1707 #if 0 1708 /* 1709 * It gets very crowded with these locators on the attach line. 1710 * They are not really needed since they are printed in the clear 1711 * by each driver. 1712 */ 1713 if (uaa->uaa_vendor != UHUB_UNK_VENDOR) 1714 aprint_normal(" vendor 0x%04x", uaa->uaa_vendor); 1715 if (uaa->uaa_product != UHUB_UNK_PRODUCT) 1716 aprint_normal(" product 0x%04x", uaa->uaa_product); 1717 if (uaa->uaa_release != UHUB_UNK_RELEASE) 1718 aprint_normal(" release 0x%04x", uaa->uaa_release); 1719 #endif 1720 return UNCONF; 1721 } 1722 1723 void 1724 usbd_fill_deviceinfo(struct usbd_device *dev, struct usb_device_info *di, 1725 int usedev) 1726 { 1727 struct usbd_port *p; 1728 int i, j, err; 1729 1730 di->udi_bus = device_unit(dev->ud_bus->ub_usbctl); 1731 di->udi_addr = dev->ud_addr; 1732 di->udi_cookie = dev->ud_cookie; 1733 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1734 di->udi_product, sizeof(di->udi_product), usedev, 1); 1735 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1736 UGETW(dev->ud_ddesc.bcdDevice)); 1737 if (usedev) { 1738 usbd_status uerr = usbd_get_string(dev, 1739 dev->ud_ddesc.iSerialNumber, di->udi_serial); 1740 if (uerr != USBD_NORMAL_COMPLETION) { 1741 di->udi_serial[0] = '\0'; 1742 } else { 1743 usbd_trim_spaces(di->udi_serial); 1744 } 1745 } else { 1746 di->udi_serial[0] = '\0'; 1747 if (dev->ud_serial) { 1748 strlcpy(di->udi_serial, dev->ud_serial, 1749 sizeof(di->udi_serial)); 1750 } 1751 } 1752 1753 di->udi_vendorNo = UGETW(dev->ud_ddesc.idVendor); 1754 di->udi_productNo = UGETW(dev->ud_ddesc.idProduct); 1755 di->udi_releaseNo = UGETW(dev->ud_ddesc.bcdDevice); 1756 di->udi_class = dev->ud_ddesc.bDeviceClass; 1757 di->udi_subclass = dev->ud_ddesc.bDeviceSubClass; 1758 di->udi_protocol = dev->ud_ddesc.bDeviceProtocol; 1759 di->udi_config = dev->ud_config; 1760 di->udi_power = dev->ud_selfpowered ? 0 : dev->ud_power; 1761 di->udi_speed = dev->ud_speed; 1762 1763 if (dev->ud_subdevlen > 0) { 1764 for (i = 0, j = 0; i < dev->ud_subdevlen && 1765 j < USB_MAX_DEVNAMES; i++) { 1766 if (!dev->ud_subdevs[i]) 1767 continue; 1768 strncpy(di->udi_devnames[j], 1769 device_xname(dev->ud_subdevs[i]), USB_MAX_DEVNAMELEN); 1770 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1771 j++; 1772 } 1773 } else { 1774 j = 0; 1775 } 1776 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1777 di->udi_devnames[j][0] = 0; /* empty */ 1778 1779 if (!dev->ud_hub) { 1780 di->udi_nports = 0; 1781 return; 1782 } 1783 1784 const int nports = dev->ud_hub->uh_hubdesc.bNbrPorts; 1785 for (i = 1; i <= __arraycount(di->udi_ports) && i <= nports; i++) { 1786 p = &dev->ud_hub->uh_ports[i - 1]; 1787 if (p->up_dev) 1788 err = p->up_dev->ud_addr; 1789 else { 1790 const int s = UGETW(p->up_status.wPortStatus); 1791 const bool sshub_p = USB_IS_SS(dev->ud_speed); 1792 if (s & UPS_PORT_ENABLED) 1793 err = USB_PORT_ENABLED; 1794 else if (s & UPS_SUSPEND) 1795 err = USB_PORT_SUSPENDED; 1796 /* 1797 * Note: UPS_PORT_POWER_SS is available only 1798 * on 3.x, and UPS_PORT_POWER is available 1799 * only on 2.0 or 1.1. 1800 */ 1801 else if (sshub_p && (s & UPS_PORT_POWER_SS)) 1802 err = USB_PORT_POWERED; 1803 else if (!sshub_p && (s & UPS_PORT_POWER)) 1804 err = USB_PORT_POWERED; 1805 else 1806 err = USB_PORT_DISABLED; 1807 } 1808 di->udi_ports[i - 1] = err; 1809 } 1810 di->udi_nports = nports; 1811 } 1812 1813 void 1814 usb_free_device(struct usbd_device *dev) 1815 { 1816 int ifcidx, nifc; 1817 1818 if (dev->ud_pipe0 != NULL) 1819 usbd_kill_pipe(dev->ud_pipe0); 1820 if (dev->ud_ifaces != NULL) { 1821 nifc = dev->ud_cdesc->bNumInterface; 1822 for (ifcidx = 0; ifcidx < nifc; ifcidx++) { 1823 usbd_iface_exlock(&dev->ud_ifaces[ifcidx]); 1824 usbd_free_iface_data(dev, ifcidx); 1825 usbd_iface_unlock(&dev->ud_ifaces[ifcidx]); 1826 usbd_iface_fini(dev, ifcidx); 1827 } 1828 kmem_free(dev->ud_ifaces, 1829 nifc * sizeof(struct usbd_interface)); 1830 } 1831 if (dev->ud_cdesc != NULL) 1832 kmem_free(dev->ud_cdesc, UGETW(dev->ud_cdesc->wTotalLength)); 1833 if (dev->ud_bdesc != NULL) 1834 kmem_free(dev->ud_bdesc, UGETW(dev->ud_bdesc->wTotalLength)); 1835 if (dev->ud_subdevlen > 0) { 1836 kmem_free(dev->ud_subdevs, 1837 dev->ud_subdevlen * sizeof(device_t)); 1838 dev->ud_subdevlen = 0; 1839 } 1840 if (dev->ud_vendor) { 1841 kmem_free(dev->ud_vendor, USB_MAX_ENCODED_STRING_LEN); 1842 } 1843 if (dev->ud_product) { 1844 kmem_free(dev->ud_product, USB_MAX_ENCODED_STRING_LEN); 1845 } 1846 if (dev->ud_serial) { 1847 kmem_free(dev->ud_serial, USB_MAX_ENCODED_STRING_LEN); 1848 } 1849 kmem_free(dev, sizeof(*dev)); 1850 } 1851 1852 /* 1853 * The general mechanism for detaching drivers works as follows: Each 1854 * driver is responsible for maintaining a reference count on the 1855 * number of outstanding references to its softc (e.g. from 1856 * processing hanging in a read or write). The detach method of the 1857 * driver decrements this counter and flags in the softc that the 1858 * driver is dying and then wakes any sleepers. It then sleeps on the 1859 * softc. Each place that can sleep must maintain the reference 1860 * count. When the reference count drops to -1 (0 is the normal value 1861 * of the reference count) then a wakeup on the softc is performed 1862 * signaling to the detach waiter that all references are gone. 1863 */ 1864 1865 /* 1866 * Called from process context when we discover that a port has 1867 * been disconnected. 1868 */ 1869 int 1870 usb_disconnect_port(struct usbd_port *up, device_t parent, int flags) 1871 { 1872 struct usbd_device *dev = up->up_dev; 1873 device_t subdev; 1874 char subdevname[16]; 1875 const char *hubname = device_xname(parent); 1876 int i, rc; 1877 1878 USBHIST_FUNC(); 1879 USBHIST_CALLARGS(usbdebug, "up=%#jx dev=%#jx port=%jd", 1880 (uintptr_t)up, (uintptr_t)dev, up->up_portno, 0); 1881 1882 if (dev == NULL) { 1883 return 0; 1884 } 1885 1886 usbd_suspend_pipe(dev->ud_pipe0); 1887 if (dev->ud_subdevlen > 0) { 1888 DPRINTFN(3, "disconnect subdevs", 0, 0, 0, 0); 1889 for (i = 0; i < dev->ud_subdevlen; i++) { 1890 if ((subdev = dev->ud_subdevs[i]) == NULL) 1891 continue; 1892 strlcpy(subdevname, device_xname(subdev), 1893 sizeof(subdevname)); 1894 KERNEL_LOCK(1, curlwp); 1895 rc = config_detach(subdev, flags); 1896 KERNEL_UNLOCK_ONE(curlwp); 1897 if (rc != 0) 1898 return rc; 1899 printf("%s: at %s", subdevname, hubname); 1900 if (up->up_portno != 0) 1901 printf(" port %d", up->up_portno); 1902 printf(" (addr %d) disconnected\n", dev->ud_addr); 1903 } 1904 KASSERT(!dev->ud_nifaces_claimed); 1905 } 1906 1907 mutex_enter(dev->ud_bus->ub_lock); 1908 dev->ud_bus->ub_devices[usb_addr2dindex(dev->ud_addr)] = NULL; 1909 up->up_dev = NULL; 1910 mutex_exit(dev->ud_bus->ub_lock); 1911 1912 usbd_add_dev_event(USB_EVENT_DEVICE_DETACH, dev); 1913 1914 usb_free_device(dev); 1915 1916 return 0; 1917 } 1918
Indexes created Mon Sep 22 21:09:42 GMT 2025