usb_subr.c revision 1.198.2.20
1 /* $NetBSD: usb_subr.c,v 1.198.2.20 2015/12/19 09:20:35 skrll Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/usb_subr.c,v 1.18 1999/11/17 22:33:47 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart (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 1.198.2.20 2015/12/19 09:20:35 skrll Exp $"); 36 37 #ifdef _KERNEL_OPT 38 #include "opt_compat_netbsd.h" 39 #include "opt_usb.h" 40 #include "opt_usbverbose.h" 41 #endif 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/kmem.h> 47 #include <sys/device.h> 48 #include <sys/select.h> 49 #include <sys/proc.h> 50 51 #include <sys/bus.h> 52 #include <sys/module.h> 53 54 #include <dev/usb/usb.h> 55 56 #include <dev/usb/usbdi.h> 57 #include <dev/usb/usbdi_util.h> 58 #include <dev/usb/usbdivar.h> 59 #include <dev/usb/usbdevs.h> 60 #include <dev/usb/usb_quirks.h> 61 #include <dev/usb/usb_verbose.h> 62 #include <dev/usb/usbhist.h> 63 64 #include "locators.h" 65 66 #define DPRINTF(FMT,A,B,C,D) USBHIST_LOG(usbdebug,FMT,A,B,C,D) 67 #define DPRINTFN(N,FMT,A,B,C,D) USBHIST_LOGN(usbdebug,N,FMT,A,B,C,D) 68 69 Static usbd_status usbd_set_config(struct usbd_device *, int); 70 Static void usbd_devinfo(struct usbd_device *, int, char *, size_t); 71 Static void usbd_devinfo_vp(struct usbd_device *, char *, size_t, char *, size_t, 72 int, int); 73 Static int usbd_getnewaddr(struct usbd_bus *); 74 Static int usbd_print(void *, const char *); 75 Static int usbd_ifprint(void *, const char *); 76 Static void usbd_free_iface_data(struct usbd_device *, int); 77 78 uint32_t usb_cookie_no = 0; 79 80 Static const char * const usbd_error_strs[] = { 81 "NORMAL_COMPLETION", 82 "IN_PROGRESS", 83 "PENDING_REQUESTS", 84 "NOT_STARTED", 85 "INVAL", 86 "NOMEM", 87 "CANCELLED", 88 "BAD_ADDRESS", 89 "IN_USE", 90 "NO_ADDR", 91 "SET_ADDR_FAILED", 92 "NO_POWER", 93 "TOO_DEEP", 94 "IOERROR", 95 "NOT_CONFIGURED", 96 "TIMEOUT", 97 "SHORT_XFER", 98 "STALLED", 99 "INTERRUPTED", 100 "XXX", 101 }; 102 103 DEV_VERBOSE_DEFINE(usb); 104 105 const char * 106 usbd_errstr(usbd_status err) 107 { 108 static char buffer[5]; 109 110 if (err < USBD_ERROR_MAX) { 111 return usbd_error_strs[err]; 112 } else { 113 snprintf(buffer, sizeof(buffer), "%d", err); 114 return buffer; 115 } 116 } 117 118 usbd_status 119 usbd_get_string_desc(struct usbd_device *dev, int sindex, int langid, 120 usb_string_descriptor_t *sdesc, int *sizep) 121 { 122 usb_device_request_t req; 123 usbd_status err; 124 int actlen; 125 126 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 127 128 req.bmRequestType = UT_READ_DEVICE; 129 req.bRequest = UR_GET_DESCRIPTOR; 130 USETW2(req.wValue, UDESC_STRING, sindex); 131 USETW(req.wIndex, langid); 132 USETW(req.wLength, 2); /* only size byte first */ 133 err = usbd_do_request_flags(dev, &req, sdesc, USBD_SHORT_XFER_OK, 134 &actlen, USBD_DEFAULT_TIMEOUT); 135 if (err) 136 return err; 137 138 if (actlen < 2) 139 return USBD_SHORT_XFER; 140 141 USETW(req.wLength, sdesc->bLength); /* the whole string */ 142 err = usbd_do_request_flags(dev, &req, sdesc, USBD_SHORT_XFER_OK, 143 &actlen, USBD_DEFAULT_TIMEOUT); 144 if (err) 145 return err; 146 147 if (actlen != sdesc->bLength) { 148 DPRINTF("expected %d, got %d", sdesc->bLength, actlen, 0, 0); 149 } 150 151 *sizep = actlen; 152 return USBD_NORMAL_COMPLETION; 153 } 154 155 static void 156 usbd_trim_spaces(char *p) 157 { 158 char *q, *e; 159 160 q = e = p; 161 while (*q == ' ') /* skip leading spaces */ 162 q++; 163 while ((*p = *q++)) /* copy string */ 164 if (*p++ != ' ') /* remember last non-space */ 165 e = p; 166 *e = '\0'; /* kill trailing spaces */ 167 } 168 169 Static void 170 usbd_devinfo_vp(struct usbd_device *dev, char *v, size_t vl, char *p, 171 size_t pl, int usedev, int useencoded) 172 { 173 usb_device_descriptor_t *udd = &dev->ud_ddesc; 174 if (dev == NULL) 175 return; 176 177 v[0] = p[0] = '\0'; 178 179 if (usedev) { 180 if (usbd_get_string0(dev, udd->iManufacturer, v, useencoded) == 181 USBD_NORMAL_COMPLETION) 182 usbd_trim_spaces(v); 183 if (usbd_get_string0(dev, udd->iProduct, p, useencoded) == 184 USBD_NORMAL_COMPLETION) 185 usbd_trim_spaces(p); 186 } 187 if (v[0] == '\0') 188 usb_findvendor(v, vl, UGETW(udd->idVendor)); 189 if (p[0] == '\0') 190 usb_findproduct(p, pl, UGETW(udd->idVendor), 191 UGETW(udd->idProduct)); 192 } 193 194 int 195 usbd_printBCD(char *cp, size_t l, int bcd) 196 { 197 return snprintf(cp, l, "%x.%02x", bcd >> 8, bcd & 0xff); 198 } 199 200 Static void 201 usbd_devinfo(struct usbd_device *dev, int showclass, char *cp, size_t l) 202 { 203 usb_device_descriptor_t *udd = &dev->ud_ddesc; 204 char *vendor, *product; 205 int bcdDevice, bcdUSB; 206 char *ep; 207 208 vendor = kmem_alloc(USB_MAX_ENCODED_STRING_LEN * 2, KM_SLEEP); 209 if (vendor == NULL) { 210 *cp = '\0'; 211 return; 212 } 213 product = &vendor[USB_MAX_ENCODED_STRING_LEN]; 214 215 ep = cp + l; 216 217 usbd_devinfo_vp(dev, vendor, USB_MAX_ENCODED_STRING_LEN, 218 product, USB_MAX_ENCODED_STRING_LEN, 1, 1); 219 cp += snprintf(cp, ep - cp, "%s %s", vendor, product); 220 if (showclass) 221 cp += snprintf(cp, ep - cp, ", class %d/%d", 222 udd->bDeviceClass, udd->bDeviceSubClass); 223 bcdUSB = UGETW(udd->bcdUSB); 224 bcdDevice = UGETW(udd->bcdDevice); 225 cp += snprintf(cp, ep - cp, ", rev "); 226 cp += usbd_printBCD(cp, ep - cp, bcdUSB); 227 *cp++ = '/'; 228 cp += usbd_printBCD(cp, ep - cp, bcdDevice); 229 cp += snprintf(cp, ep - cp, ", addr %d", dev->ud_addr); 230 *cp = 0; 231 kmem_free(vendor, USB_MAX_ENCODED_STRING_LEN * 2); 232 } 233 234 char * 235 usbd_devinfo_alloc(struct usbd_device *dev, int showclass) 236 { 237 char *devinfop; 238 239 devinfop = kmem_alloc(DEVINFOSIZE, KM_SLEEP); 240 usbd_devinfo(dev, showclass, devinfop, DEVINFOSIZE); 241 return devinfop; 242 } 243 244 void 245 usbd_devinfo_free(char *devinfop) 246 { 247 kmem_free(devinfop, DEVINFOSIZE); 248 } 249 250 /* Delay for a certain number of ms */ 251 void 252 usb_delay_ms_locked(struct usbd_bus *bus, u_int ms, kmutex_t *lock) 253 { 254 /* Wait at least two clock ticks so we know the time has passed. */ 255 if (bus->ub_usepolling || cold) 256 delay((ms+1) * 1000); 257 else 258 kpause("usbdly", false, (ms*hz+999)/1000 + 1, lock); 259 } 260 261 void 262 usb_delay_ms(struct usbd_bus *bus, u_int ms) 263 { 264 usb_delay_ms_locked(bus, ms, NULL); 265 } 266 267 /* Delay given a device handle. */ 268 void 269 usbd_delay_ms_locked(struct usbd_device *dev, u_int ms, kmutex_t *lock) 270 { 271 usb_delay_ms_locked(dev->ud_bus, ms, lock); 272 } 273 274 /* Delay given a device handle. */ 275 void 276 usbd_delay_ms(struct usbd_device *dev, u_int ms) 277 { 278 usb_delay_ms_locked(dev->ud_bus, ms, NULL); 279 } 280 281 usbd_status 282 usbd_reset_port(struct usbd_device *dev, int port, usb_port_status_t *ps) 283 { 284 usb_device_request_t req; 285 usbd_status err; 286 int n; 287 288 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 289 290 req.bmRequestType = UT_WRITE_CLASS_OTHER; 291 req.bRequest = UR_SET_FEATURE; 292 USETW(req.wValue, UHF_PORT_RESET); 293 USETW(req.wIndex, port); 294 USETW(req.wLength, 0); 295 err = usbd_do_request(dev, &req, 0); 296 DPRINTFN(1, "port %d reset done, error=%d", port, err, 0, 0); 297 if (err) 298 return err; 299 n = 10; 300 do { 301 /* Wait for device to recover from reset. */ 302 usbd_delay_ms(dev, USB_PORT_RESET_DELAY); 303 err = usbd_get_port_status(dev, port, ps); 304 if (err) { 305 DPRINTF("get status failed %d", err, 0, 0, 0); 306 return err; 307 } 308 /* If the device disappeared, just give up. */ 309 if (!(UGETW(ps->wPortStatus) & UPS_CURRENT_CONNECT_STATUS)) 310 return USBD_NORMAL_COMPLETION; 311 } while ((UGETW(ps->wPortChange) & UPS_C_PORT_RESET) == 0 && --n > 0); 312 if (n == 0) 313 return USBD_TIMEOUT; 314 err = usbd_clear_port_feature(dev, port, UHF_C_PORT_RESET); 315 #ifdef USB_DEBUG 316 if (err) 317 DPRINTF("clear port feature failed %d", err, 0, 0, 0); 318 #endif 319 320 /* Wait for the device to recover from reset. */ 321 usbd_delay_ms(dev, USB_PORT_RESET_RECOVERY); 322 return err; 323 } 324 325 usb_interface_descriptor_t * 326 usbd_find_idesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx) 327 { 328 char *p = (char *)cd; 329 char *end = p + UGETW(cd->wTotalLength); 330 usb_interface_descriptor_t *d; 331 int curidx, lastidx, curaidx = 0; 332 333 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 334 335 for (curidx = lastidx = -1; p < end; ) { 336 d = (usb_interface_descriptor_t *)p; 337 DPRINTFN(4, "idx=%d(%d) altidx=%d(%d)", ifaceidx, curidx, 338 altidx, curaidx); 339 DPRINTFN(4, "len=%d type=%d", d->bLength, d->bDescriptorType, 340 0, 0); 341 if (d->bLength == 0) /* bad descriptor */ 342 break; 343 p += d->bLength; 344 if (p <= end && d->bDescriptorType == UDESC_INTERFACE) { 345 if (d->bInterfaceNumber != lastidx) { 346 lastidx = d->bInterfaceNumber; 347 curidx++; 348 curaidx = 0; 349 } else 350 curaidx++; 351 if (ifaceidx == curidx && altidx == curaidx) 352 return d; 353 } 354 } 355 return NULL; 356 } 357 358 usb_endpoint_descriptor_t * 359 usbd_find_edesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx, 360 int endptidx) 361 { 362 char *p = (char *)cd; 363 char *end = p + UGETW(cd->wTotalLength); 364 usb_interface_descriptor_t *d; 365 usb_endpoint_descriptor_t *e; 366 int curidx; 367 368 d = usbd_find_idesc(cd, ifaceidx, altidx); 369 if (d == NULL) 370 return NULL; 371 if (endptidx >= d->bNumEndpoints) /* quick exit */ 372 return NULL; 373 374 curidx = -1; 375 for (p = (char *)d + d->bLength; p < end; ) { 376 e = (usb_endpoint_descriptor_t *)p; 377 if (e->bLength == 0) /* bad descriptor */ 378 break; 379 p += e->bLength; 380 if (p <= end && e->bDescriptorType == UDESC_INTERFACE) 381 return NULL; 382 if (p <= end && e->bDescriptorType == UDESC_ENDPOINT) { 383 curidx++; 384 if (curidx == endptidx) 385 return e; 386 } 387 } 388 return NULL; 389 } 390 391 usbd_status 392 usbd_fill_iface_data(struct usbd_device *dev, int ifaceidx, int altidx) 393 { 394 struct usbd_interface *ifc = &dev->ud_ifaces[ifaceidx]; 395 usb_interface_descriptor_t *idesc; 396 char *p, *end; 397 int endpt, nendpt; 398 399 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 400 401 DPRINTFN(4, "ifaceidx=%d altidx=%d", ifaceidx, altidx, 0, 0); 402 idesc = usbd_find_idesc(dev->ud_cdesc, ifaceidx, altidx); 403 if (idesc == NULL) 404 return USBD_INVAL; 405 ifc->ui_dev = dev; 406 ifc->ui_idesc = idesc; 407 ifc->ui_index = ifaceidx; 408 ifc->ui_altindex = altidx; 409 nendpt = ifc->ui_idesc->bNumEndpoints; 410 DPRINTFN(4, "found idesc nendpt=%d", nendpt, 0, 0, 0); 411 if (nendpt != 0) { 412 ifc->ui_endpoints = kmem_alloc(nendpt * sizeof(struct usbd_endpoint), 413 KM_SLEEP); 414 if (ifc->ui_endpoints == NULL) 415 return USBD_NOMEM; 416 } else 417 ifc->ui_endpoints = NULL; 418 ifc->ui_priv = NULL; 419 p = (char *)ifc->ui_idesc + ifc->ui_idesc->bLength; 420 end = (char *)dev->ud_cdesc + UGETW(dev->ud_cdesc->wTotalLength); 421 #define ed ((usb_endpoint_descriptor_t *)p) 422 for (endpt = 0; endpt < nendpt; endpt++) { 423 DPRINTFN(10, "endpt=%d", endpt, 0, 0, 0); 424 for (; p < end; p += ed->bLength) { 425 DPRINTFN(10, "p=%p end=%p len=%d type=%d", 426 p, end, ed->bLength, ed->bDescriptorType); 427 if (p + ed->bLength <= end && ed->bLength != 0 && 428 ed->bDescriptorType == UDESC_ENDPOINT) 429 goto found; 430 if (ed->bLength == 0 || 431 ed->bDescriptorType == UDESC_INTERFACE) 432 break; 433 } 434 /* passed end, or bad desc */ 435 printf("usbd_fill_iface_data: bad descriptor(s): %s\n", 436 ed->bLength == 0 ? "0 length" : 437 ed->bDescriptorType == UDESC_INTERFACE ? "iface desc": 438 "out of data"); 439 goto bad; 440 found: 441 ifc->ui_endpoints[endpt].ue_edesc = ed; 442 if (dev->ud_speed == USB_SPEED_HIGH) { 443 u_int mps; 444 /* Control and bulk endpoints have max packet limits. */ 445 switch (UE_GET_XFERTYPE(ed->bmAttributes)) { 446 case UE_CONTROL: 447 mps = USB_2_MAX_CTRL_PACKET; 448 goto check; 449 case UE_BULK: 450 mps = USB_2_MAX_BULK_PACKET; 451 check: 452 if (UGETW(ed->wMaxPacketSize) != mps) { 453 USETW(ed->wMaxPacketSize, mps); 454 #ifdef DIAGNOSTIC 455 printf("usbd_fill_iface_data: bad max " 456 "packet size\n"); 457 #endif 458 } 459 break; 460 default: 461 break; 462 } 463 } 464 ifc->ui_endpoints[endpt].ue_refcnt = 0; 465 ifc->ui_endpoints[endpt].ue_toggle = 0; 466 p += ed->bLength; 467 } 468 #undef ed 469 LIST_INIT(&ifc->ui_pipes); 470 return USBD_NORMAL_COMPLETION; 471 472 bad: 473 if (ifc->ui_endpoints != NULL) { 474 kmem_free(ifc->ui_endpoints, nendpt * sizeof(struct usbd_endpoint)); 475 ifc->ui_endpoints = NULL; 476 } 477 return USBD_INVAL; 478 } 479 480 void 481 usbd_free_iface_data(struct usbd_device *dev, int ifcno) 482 { 483 struct usbd_interface *ifc = &dev->ud_ifaces[ifcno]; 484 if (ifc->ui_endpoints) { 485 int nendpt = ifc->ui_idesc->bNumEndpoints; 486 size_t sz = nendpt * sizeof(struct usbd_endpoint); 487 kmem_free(ifc->ui_endpoints, sz); 488 } 489 } 490 491 Static usbd_status 492 usbd_set_config(struct usbd_device *dev, int conf) 493 { 494 usb_device_request_t req; 495 496 req.bmRequestType = UT_WRITE_DEVICE; 497 req.bRequest = UR_SET_CONFIG; 498 USETW(req.wValue, conf); 499 USETW(req.wIndex, 0); 500 USETW(req.wLength, 0); 501 return usbd_do_request(dev, &req, 0); 502 } 503 504 usbd_status 505 usbd_set_config_no(struct usbd_device *dev, int no, int msg) 506 { 507 int index; 508 usb_config_descriptor_t cd; 509 usbd_status err; 510 511 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 512 513 if (no == USB_UNCONFIG_NO) 514 return usbd_set_config_index(dev, USB_UNCONFIG_INDEX, msg); 515 516 DPRINTFN(5, "%d", no, 0, 0, 0); 517 /* Figure out what config index to use. */ 518 for (index = 0; index < dev->ud_ddesc.bNumConfigurations; index++) { 519 err = usbd_get_config_desc(dev, index, &cd); 520 if (err) 521 return err; 522 if (cd.bConfigurationValue == no) 523 return usbd_set_config_index(dev, index, msg); 524 } 525 return USBD_INVAL; 526 } 527 528 usbd_status 529 usbd_set_config_index(struct usbd_device *dev, int index, int msg) 530 { 531 usb_config_descriptor_t cd, *cdp; 532 usb_bos_descriptor_t bd, *bdp = NULL; 533 usbd_status err; 534 int i, ifcidx, nifc, len, selfpowered, power; 535 536 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 537 538 DPRINTFN(5, "dev=%p index=%d", dev, index, 0, 0); 539 540 if (index >= dev->ud_ddesc.bNumConfigurations && 541 index != USB_UNCONFIG_INDEX) { 542 /* panic? */ 543 printf("usbd_set_config_index: illegal index\n"); 544 return USBD_INVAL; 545 } 546 547 /* XXX check that all interfaces are idle */ 548 if (dev->ud_config != USB_UNCONFIG_NO) { 549 DPRINTF("free old config", 0, 0, 0, 0); 550 /* Free all configuration data structures. */ 551 nifc = dev->ud_cdesc->bNumInterface; 552 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 553 usbd_free_iface_data(dev, ifcidx); 554 kmem_free(dev->ud_ifaces, nifc * sizeof(struct usbd_interface)); 555 kmem_free(dev->ud_cdesc, UGETW(dev->ud_cdesc->wTotalLength)); 556 if (dev->ud_bdesc != NULL) 557 kmem_free(dev->ud_bdesc, 558 UGETW(dev->ud_bdesc->wTotalLength)); 559 dev->ud_ifaces = NULL; 560 dev->ud_cdesc = NULL; 561 dev->ud_bdesc = NULL; 562 dev->ud_config = USB_UNCONFIG_NO; 563 } 564 565 if (index == USB_UNCONFIG_INDEX) { 566 /* We are unconfiguring the device, so leave unallocated. */ 567 DPRINTF("set config 0", 0, 0, 0, 0); 568 err = usbd_set_config(dev, USB_UNCONFIG_NO); 569 if (err) { 570 DPRINTF("setting config=0 failed, err = %d", err, 571 0, 0, 0); 572 } 573 return err; 574 } 575 576 /* Get the short descriptor. */ 577 err = usbd_get_config_desc(dev, index, &cd); 578 if (err) { 579 DPRINTF("get_config_desc=%d", err, 0, 0, 0); 580 return err; 581 } 582 len = UGETW(cd.wTotalLength); 583 cdp = kmem_alloc(len, KM_SLEEP); 584 if (cdp == NULL) 585 return USBD_NOMEM; 586 587 /* Get the full descriptor. Try a few times for slow devices. */ 588 for (i = 0; i < 3; i++) { 589 err = usbd_get_desc(dev, UDESC_CONFIG, index, len, cdp); 590 if (!err) 591 break; 592 usbd_delay_ms(dev, 200); 593 } 594 if (err) { 595 DPRINTF("get_desc=%d", err, 0, 0, 0); 596 goto bad; 597 } 598 if (cdp->bDescriptorType != UDESC_CONFIG) { 599 DPRINTF("bad desc %d", cdp->bDescriptorType, 0, 0, 0); 600 err = USBD_INVAL; 601 goto bad; 602 } 603 604 if (USB_IS_SS(dev->ud_speed)) { 605 /* get short bos desc */ 606 err = usbd_get_bos_desc(dev, index, &bd); 607 if (!err) { 608 int blen = UGETW(bd.wTotalLength); 609 bdp = kmem_alloc(blen, KM_SLEEP); 610 if (bdp == NULL) { 611 err = USBD_NOMEM; 612 goto bad; 613 } 614 615 /* Get the full desc */ 616 for (i = 0; i < 3; i++) { 617 err = usbd_get_desc(dev, UDESC_BOS, index, blen, 618 bdp); 619 if (!err) 620 break; 621 usbd_delay_ms(dev, 200); 622 } 623 if (err || bdp->bDescriptorType != UDESC_BOS) { 624 DPRINTF("error %d or bad desc %d", err, 625 bdp->bDescriptorType, 0, 0); 626 kmem_free(bdp, blen); 627 bdp = NULL; 628 } 629 } 630 } 631 dev->ud_bdesc = bdp; 632 633 /* 634 * Figure out if the device is self or bus powered. 635 */ 636 #if 0 /* XXX various devices don't report the power state correctly */ 637 selfpowered = 0; 638 err = usbd_get_device_status(dev, &ds); 639 if (!err && (UGETW(ds.wStatus) & UDS_SELF_POWERED)) 640 selfpowered = 1; 641 #endif 642 /* 643 * Use the power state in the configuration we are going 644 * to set. This doesn't necessarily reflect the actual 645 * power state of the device; the driver can control this 646 * by choosing the appropriate configuration. 647 */ 648 selfpowered = !!(cdp->bmAttributes & UC_SELF_POWERED); 649 650 DPRINTF("addr %d cno=%d attr=0x%02x, selfpowered=%d", 651 dev->ud_addr, cdp->bConfigurationValue, cdp->bmAttributes, 652 selfpowered); 653 DPRINTF("max power=%d", cdp->bMaxPower * 2, 0, 0, 0); 654 655 /* Check if we have enough power. */ 656 #if 0 /* this is a no-op, see above */ 657 if ((cdp->bmAttributes & UC_SELF_POWERED) && !selfpowered) { 658 if (msg) 659 printf("%s: device addr %d (config %d): " 660 "can't set self powered configuration\n", 661 device_xname(dev->ud_bus->bdev), dev->ud_addr, 662 cdp->bConfigurationValue); 663 err = USBD_NO_POWER; 664 goto bad; 665 } 666 #endif 667 #ifdef USB_DEBUG 668 if (dev->ud_powersrc == NULL) { 669 DPRINTF("No power source?", 0, 0, 0, 0); 670 err = USBD_IOERROR; 671 goto bad; 672 } 673 #endif 674 power = cdp->bMaxPower * 2; 675 if (power > dev->ud_powersrc->up_power) { 676 DPRINTF("power exceeded %d %d", power, dev->ud_powersrc->up_power, 677 0, 0); 678 /* XXX print nicer message. */ 679 if (msg) 680 printf("%s: device addr %d (config %d) exceeds power " 681 "budget, %d mA > %d mA\n", 682 device_xname(dev->ud_bus->ub_usbctl), dev->ud_addr, 683 cdp->bConfigurationValue, 684 power, dev->ud_powersrc->up_power); 685 err = USBD_NO_POWER; 686 goto bad; 687 } 688 dev->ud_power = power; 689 dev->ud_selfpowered = selfpowered; 690 691 /* Set the actual configuration value. */ 692 DPRINTF("set config %d", cdp->bConfigurationValue, 0, 0, 0); 693 err = usbd_set_config(dev, cdp->bConfigurationValue); 694 if (err) { 695 DPRINTF("setting config=%d failed, error=%d", 696 cdp->bConfigurationValue, err, 0, 0); 697 goto bad; 698 } 699 700 /* Allocate and fill interface data. */ 701 nifc = cdp->bNumInterface; 702 dev->ud_ifaces = kmem_alloc(nifc * sizeof(struct usbd_interface), 703 KM_SLEEP); 704 if (dev->ud_ifaces == NULL) { 705 err = USBD_NOMEM; 706 goto bad; 707 } 708 DPRINTFN(5, "dev=%p cdesc=%p", dev, cdp, 0, 0); 709 dev->ud_cdesc = cdp; 710 dev->ud_config = cdp->bConfigurationValue; 711 for (ifcidx = 0; ifcidx < nifc; ifcidx++) { 712 err = usbd_fill_iface_data(dev, ifcidx, 0); 713 if (err) { 714 while (--ifcidx >= 0) 715 usbd_free_iface_data(dev, ifcidx); 716 goto bad; 717 } 718 } 719 720 return USBD_NORMAL_COMPLETION; 721 722 bad: 723 kmem_free(cdp, len); 724 if (bdp != NULL) { 725 kmem_free(bdp, UGETW(bdp->wTotalLength)); 726 dev->ud_bdesc = NULL; 727 } 728 return err; 729 } 730 731 /* XXX add function for alternate settings */ 732 733 usbd_status 734 usbd_setup_pipe(struct usbd_device *dev, struct usbd_interface *iface, 735 struct usbd_endpoint *ep, int ival, struct usbd_pipe **pipe) 736 { 737 return usbd_setup_pipe_flags(dev, iface, ep, ival, pipe, 0); 738 } 739 740 usbd_status 741 usbd_setup_pipe_flags(struct usbd_device *dev, struct usbd_interface *iface, 742 struct usbd_endpoint *ep, int ival, struct usbd_pipe **pipe, uint8_t flags) 743 { 744 struct usbd_pipe *p; 745 usbd_status err; 746 747 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 748 749 p = kmem_alloc(dev->ud_bus->ub_pipesize, KM_SLEEP); 750 DPRINTFN(1, "dev=%p addr=%d iface=%p ep=%p pipe=%p", dev, dev->ud_addr, iface, ep); 751 if (p == NULL) { 752 DPRINTFN(1, "(nomem)", 0, 0, 0, 0); 753 return USBD_NOMEM; 754 } 755 p->up_dev = dev; 756 p->up_iface = iface; 757 p->up_endpoint = ep; 758 ep->ue_refcnt++; 759 p->up_refcnt = 1; 760 p->up_intrxfer = NULL; 761 p->up_running = 0; 762 p->up_aborting = 0; 763 p->up_repeat = 0; 764 p->up_interval = ival; 765 p->up_flags = flags; 766 SIMPLEQ_INIT(&p->up_queue); 767 err = dev->ud_bus->ub_methods->ubm_open(p); 768 if (err) { 769 DPRINTF("endpoint=0x%x failed, error=%d", 770 ep->ue_edesc->bEndpointAddress, err, 0, 0); 771 kmem_intr_free(p, dev->ud_bus->ub_pipesize); 772 return err; 773 } 774 usb_init_task(&p->up_async_task, usbd_clear_endpoint_stall_task, p, 775 USB_TASKQ_MPSAFE); 776 DPRINTFN(1, "pipe=%p", p, 0, 0, 0); 777 *pipe = p; 778 return USBD_NORMAL_COMPLETION; 779 } 780 781 /* Abort the device control pipe. */ 782 void 783 usbd_kill_pipe(struct usbd_pipe *pipe) 784 { 785 usbd_abort_pipe(pipe); 786 usbd_lock_pipe(pipe); 787 pipe->up_methods->upm_close(pipe); 788 usbd_unlock_pipe(pipe); 789 usb_rem_task(pipe->up_dev, &pipe->up_async_task); 790 pipe->up_endpoint->ue_refcnt--; 791 kmem_free(pipe, pipe->up_dev->ud_bus->ub_pipesize); 792 } 793 794 int 795 usbd_getnewaddr(struct usbd_bus *bus) 796 { 797 int addr; 798 799 for (addr = 1; addr < USB_MAX_DEVICES; addr++) 800 if (bus->ub_devices[addr] == NULL) 801 return addr; 802 return -1; 803 } 804 805 usbd_status 806 usbd_attach_roothub(device_t parent, struct usbd_device *dev) 807 { 808 struct usb_attach_arg uaa; 809 usb_device_descriptor_t *dd = &dev->ud_ddesc; 810 device_t dv; 811 812 uaa.uaa_device = dev; 813 uaa.uaa_usegeneric = 0; 814 uaa.uaa_port = 0; 815 uaa.uaa_vendor = UGETW(dd->idVendor); 816 uaa.uaa_product = UGETW(dd->idProduct); 817 uaa.uaa_release = UGETW(dd->bcdDevice); 818 uaa.uaa_class = dd->bDeviceClass; 819 uaa.uaa_subclass = dd->bDeviceSubClass; 820 uaa.uaa_proto = dd->bDeviceProtocol; 821 822 dv = config_found_ia(parent, "usbroothubif", &uaa, 0); 823 if (dv) { 824 dev->ud_subdevs = kmem_alloc(sizeof(dv), KM_SLEEP); 825 if (dev->ud_subdevs == NULL) 826 return USBD_NOMEM; 827 dev->ud_subdevs[0] = dv; 828 dev->ud_subdevlen = 1; 829 } 830 return USBD_NORMAL_COMPLETION; 831 } 832 833 static usbd_status 834 usbd_attachwholedevice(device_t parent, struct usbd_device *dev, int port, 835 int usegeneric) 836 { 837 struct usb_attach_arg uaa; 838 usb_device_descriptor_t *dd = &dev->ud_ddesc; 839 device_t dv; 840 int dlocs[USBDEVIFCF_NLOCS]; 841 842 uaa.uaa_device = dev; 843 uaa.uaa_usegeneric = usegeneric; 844 uaa.uaa_port = port; 845 uaa.uaa_vendor = UGETW(dd->idVendor); 846 uaa.uaa_product = UGETW(dd->idProduct); 847 uaa.uaa_release = UGETW(dd->bcdDevice); 848 uaa.uaa_class = dd->bDeviceClass; 849 uaa.uaa_subclass = dd->bDeviceSubClass; 850 uaa.uaa_proto = dd->bDeviceProtocol; 851 852 dlocs[USBDEVIFCF_PORT] = uaa.uaa_port; 853 dlocs[USBDEVIFCF_VENDOR] = uaa.uaa_vendor; 854 dlocs[USBDEVIFCF_PRODUCT] = uaa.uaa_product; 855 dlocs[USBDEVIFCF_RELEASE] = uaa.uaa_release; 856 /* the rest is historical ballast */ 857 dlocs[USBDEVIFCF_CONFIGURATION] = -1; 858 dlocs[USBDEVIFCF_INTERFACE] = -1; 859 860 dv = config_found_sm_loc(parent, "usbdevif", dlocs, &uaa, usbd_print, 861 config_stdsubmatch); 862 if (dv) { 863 dev->ud_subdevs = kmem_alloc(sizeof(dv), KM_SLEEP); 864 if (dev->ud_subdevs == NULL) 865 return USBD_NOMEM; 866 dev->ud_subdevs[0] = dv; 867 dev->ud_subdevlen = 1; 868 dev->ud_nifaces_claimed = 1; /* XXX */ 869 } 870 return USBD_NORMAL_COMPLETION; 871 } 872 873 static usbd_status 874 usbd_attachinterfaces(device_t parent, struct usbd_device *dev, 875 int port, const int *locators) 876 { 877 struct usbif_attach_arg uiaa; 878 int ilocs[USBIFIFCF_NLOCS]; 879 usb_device_descriptor_t *dd = &dev->ud_ddesc; 880 int nifaces; 881 struct usbd_interface **ifaces; 882 int i, j, loc; 883 device_t dv; 884 885 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 886 887 nifaces = dev->ud_cdesc->bNumInterface; 888 ifaces = kmem_zalloc(nifaces * sizeof(*ifaces), KM_SLEEP); 889 if (!ifaces) 890 return USBD_NOMEM; 891 for (i = 0; i < nifaces; i++) { 892 if (!dev->ud_subdevs[i]) { 893 ifaces[i] = &dev->ud_ifaces[i]; 894 } 895 DPRINTF("interface %d %p\n", i, ifaces[i], 0, 0); 896 } 897 898 899 uiaa.uiaa_device = dev; 900 uiaa.uiaa_port = port; 901 uiaa.uiaa_vendor = UGETW(dd->idVendor); 902 uiaa.uiaa_product = UGETW(dd->idProduct); 903 uiaa.uiaa_release = UGETW(dd->bcdDevice); 904 uiaa.uiaa_configno = dev->ud_cdesc->bConfigurationValue; 905 uiaa.uiaa_ifaces = ifaces; 906 uiaa.uiaa_nifaces = nifaces; 907 ilocs[USBIFIFCF_PORT] = uiaa.uiaa_port; 908 ilocs[USBIFIFCF_VENDOR] = uiaa.uiaa_vendor; 909 ilocs[USBIFIFCF_PRODUCT] = uiaa.uiaa_product; 910 ilocs[USBIFIFCF_RELEASE] = uiaa.uiaa_release; 911 ilocs[USBIFIFCF_CONFIGURATION] = uiaa.uiaa_configno; 912 913 for (i = 0; i < nifaces; i++) { 914 if (!ifaces[i]) { 915 DPRINTF("interface %d claimed", i, 0, 0, 0); 916 continue; /* interface already claimed */ 917 } 918 uiaa.uiaa_iface = ifaces[i]; 919 uiaa.uiaa_class = ifaces[i]->ui_idesc->bInterfaceClass; 920 uiaa.uiaa_subclass = ifaces[i]->ui_idesc->bInterfaceSubClass; 921 uiaa.uiaa_proto = ifaces[i]->ui_idesc->bInterfaceProtocol; 922 uiaa.uiaa_ifaceno = ifaces[i]->ui_idesc->bInterfaceNumber; 923 924 DPRINTF("searching for interface %d...", i, 0, 0, 0); 925 DPRINTF("class %x subclass %x proto %x ifaceno %d\n", 926 uiaa.uiaa_class, uiaa.uiaa_subclass, uiaa.uiaa_proto, 927 uiaa.uiaa_ifaceno); 928 ilocs[USBIFIFCF_INTERFACE] = uiaa.uiaa_ifaceno; 929 if (locators != NULL) { 930 loc = locators[USBIFIFCF_CONFIGURATION]; 931 if (loc != USBIFIFCF_CONFIGURATION_DEFAULT && 932 loc != uiaa.uiaa_configno) 933 continue; 934 loc = locators[USBIFIFCF_INTERFACE]; 935 if (loc != USBIFIFCF_INTERFACE_DEFAULT && 936 loc != uiaa.uiaa_ifaceno) 937 continue; 938 } 939 dv = config_found_sm_loc(parent, "usbifif", ilocs, &uiaa, 940 usbd_ifprint, config_stdsubmatch); 941 if (!dv) 942 continue; 943 /* claim */ 944 ifaces[i] = NULL; 945 /* account for ifaces claimed by the driver behind our back */ 946 for (j = 0; j < nifaces; j++) { 947 948 if (!ifaces[j] && !dev->ud_subdevs[j]) { 949 DPRINTF("interface %d claimed behind our back", 950 j, 0, 0, 0); 951 dev->ud_subdevs[j] = dv; 952 dev->ud_nifaces_claimed++; 953 } 954 } 955 } 956 957 kmem_free(ifaces, nifaces * sizeof(*ifaces)); 958 return USBD_NORMAL_COMPLETION; 959 } 960 961 usbd_status 962 usbd_probe_and_attach(device_t parent, struct usbd_device *dev, 963 int port, int addr) 964 { 965 usb_device_descriptor_t *dd = &dev->ud_ddesc; 966 int confi, nifaces; 967 usbd_status err; 968 969 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 970 971 /* First try with device specific drivers. */ 972 DPRINTF("trying device specific drivers", 0, 0, 0, 0); 973 err = usbd_attachwholedevice(parent, dev, port, 0); 974 if (dev->ud_nifaces_claimed || err) 975 return err; 976 DPRINTF("no device specific driver found", 0, 0, 0, 0); 977 978 DPRINTF("looping over %d configurations", dd->bNumConfigurations, 979 0, 0, 0); 980 for (confi = 0; confi < dd->bNumConfigurations; confi++) { 981 DPRINTFN(1, "trying config idx=%d", confi, 0, 0, 0); 982 err = usbd_set_config_index(dev, confi, 1); 983 if (err) { 984 DPRINTF("port %d, set config at addr %d failed, " 985 "error=%d", port, addr, err, 0); 986 printf("%s: port %d, set config at addr %d failed\n", 987 device_xname(parent), port, addr); 988 return err; 989 } 990 nifaces = dev->ud_cdesc->bNumInterface; 991 dev->ud_subdevs = kmem_zalloc(nifaces * sizeof(device_t), 992 KM_SLEEP); 993 if (dev->ud_subdevs == NULL) 994 return USBD_NOMEM; 995 dev->ud_subdevlen = nifaces; 996 997 err = usbd_attachinterfaces(parent, dev, port, NULL); 998 999 if (!dev->ud_nifaces_claimed) { 1000 kmem_free(dev->ud_subdevs, 1001 dev->ud_subdevlen * sizeof(device_t)); 1002 dev->ud_subdevs = 0; 1003 dev->ud_subdevlen = 0; 1004 } 1005 if (dev->ud_nifaces_claimed || err) 1006 return err; 1007 } 1008 /* No interfaces were attached in any of the configurations. */ 1009 1010 if (dd->bNumConfigurations > 1) /* don't change if only 1 config */ 1011 usbd_set_config_index(dev, 0, 0); 1012 1013 DPRINTF("no interface drivers found", 0, 0, 0, 0); 1014 1015 /* Finally try the generic driver. */ 1016 err = usbd_attachwholedevice(parent, dev, port, 1); 1017 1018 /* 1019 * The generic attach failed, but leave the device as it is. 1020 * We just did not find any drivers, that's all. The device is 1021 * fully operational and not harming anyone. 1022 */ 1023 DPRINTF("generic attach failed", 0, 0, 0, 0); 1024 1025 return USBD_NORMAL_COMPLETION; 1026 } 1027 1028 /** 1029 * Called from uhub_rescan(). usbd_new_device() for the target dev must be 1030 * called before calling this. 1031 */ 1032 usbd_status 1033 usbd_reattach_device(device_t parent, struct usbd_device *dev, 1034 int port, const int *locators) 1035 { 1036 int i, loc; 1037 1038 if (locators != NULL) { 1039 loc = locators[USBIFIFCF_PORT]; 1040 if (loc != USBIFIFCF_PORT_DEFAULT && loc != port) 1041 return USBD_NORMAL_COMPLETION; 1042 loc = locators[USBIFIFCF_VENDOR]; 1043 if (loc != USBIFIFCF_VENDOR_DEFAULT && 1044 loc != UGETW(dev->ud_ddesc.idVendor)) 1045 return USBD_NORMAL_COMPLETION; 1046 loc = locators[USBIFIFCF_PRODUCT]; 1047 if (loc != USBIFIFCF_PRODUCT_DEFAULT && 1048 loc != UGETW(dev->ud_ddesc.idProduct)) 1049 return USBD_NORMAL_COMPLETION; 1050 loc = locators[USBIFIFCF_RELEASE]; 1051 if (loc != USBIFIFCF_RELEASE_DEFAULT && 1052 loc != UGETW(dev->ud_ddesc.bcdDevice)) 1053 return USBD_NORMAL_COMPLETION; 1054 } 1055 if (dev->ud_subdevlen == 0) { 1056 /* XXX: check USBIFIFCF_CONFIGURATION and 1057 * USBIFIFCF_INTERFACE too */ 1058 return usbd_probe_and_attach(parent, dev, port, dev->ud_addr); 1059 } else if (dev->ud_subdevlen != dev->ud_cdesc->bNumInterface) { 1060 /* device-specific or generic driver is already attached. */ 1061 return USBD_NORMAL_COMPLETION; 1062 } 1063 /* Does the device have unconfigured interfaces? */ 1064 for (i = 0; i < dev->ud_subdevlen; i++) { 1065 if (dev->ud_subdevs[i] == NULL) { 1066 break; 1067 } 1068 } 1069 if (i >= dev->ud_subdevlen) 1070 return USBD_NORMAL_COMPLETION; 1071 return usbd_attachinterfaces(parent, dev, port, locators); 1072 } 1073 1074 /* 1075 * Get the first 8 bytes of the device descriptor. 1076 * Do as Windows does: try to read 64 bytes -- there are devices which 1077 * recognize the initial descriptor fetch (before the control endpoint's 1078 * MaxPacketSize is known by the host) by exactly this length. 1079 */ 1080 usbd_status 1081 usbd_get_initial_ddesc(struct usbd_device *dev, usb_device_descriptor_t *desc) 1082 { 1083 usb_device_request_t req; 1084 char buf[64]; 1085 int res, actlen; 1086 1087 req.bmRequestType = UT_READ_DEVICE; 1088 req.bRequest = UR_GET_DESCRIPTOR; 1089 USETW2(req.wValue, UDESC_DEVICE, 0); 1090 USETW(req.wIndex, 0); 1091 USETW(req.wLength, 64); 1092 res = usbd_do_request_flags(dev, &req, buf, USBD_SHORT_XFER_OK, 1093 &actlen, USBD_DEFAULT_TIMEOUT); 1094 if (res) 1095 return res; 1096 if (actlen < 8) 1097 return USBD_SHORT_XFER; 1098 memcpy(desc, buf, 8); 1099 return USBD_NORMAL_COMPLETION; 1100 } 1101 1102 /* 1103 * Called when a new device has been put in the powered state, 1104 * but not yet in the addressed state. 1105 * Get initial descriptor, set the address, get full descriptor, 1106 * and attach a driver. 1107 */ 1108 usbd_status 1109 usbd_new_device(device_t parent, struct usbd_bus* bus, int depth, 1110 int speed, int port, struct usbd_port *up) 1111 { 1112 struct usbd_device *dev, *adev; 1113 struct usbd_device *hub; 1114 usb_device_descriptor_t *dd; 1115 usb_port_status_t ps; 1116 usbd_status err; 1117 int addr; 1118 int i; 1119 int p; 1120 1121 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1122 1123 DPRINTF("bus=%p port=%d depth=%d speed=%d", bus, port, depth, speed); 1124 1125 if (bus->ub_methods->ubm_newdev != NULL) 1126 return (bus->ub_methods->ubm_newdev)(parent, bus, depth, speed, 1127 port, up); 1128 1129 addr = usbd_getnewaddr(bus); 1130 if (addr < 0) { 1131 printf("%s: No free USB addresses, new device ignored.\n", 1132 device_xname(bus->ub_usbctl)); 1133 return USBD_NO_ADDR; 1134 } 1135 1136 dev = kmem_zalloc(sizeof(*dev), KM_SLEEP); 1137 if (dev == NULL) 1138 return USBD_NOMEM; 1139 1140 dev->ud_bus = bus; 1141 1142 /* Set up default endpoint handle. */ 1143 dev->ud_ep0.ue_edesc = &dev->ud_ep0desc; 1144 1145 /* Set up default endpoint descriptor. */ 1146 dev->ud_ep0desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 1147 dev->ud_ep0desc.bDescriptorType = UDESC_ENDPOINT; 1148 dev->ud_ep0desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 1149 dev->ud_ep0desc.bmAttributes = UE_CONTROL; 1150 /* 1151 * temporary, will be fixed after first descriptor fetch 1152 * (which uses 64 bytes so it shouldn't be less), 1153 * highspeed devices must support 64 byte packets anyway 1154 */ 1155 if (speed == USB_SPEED_HIGH || speed == USB_SPEED_FULL) 1156 USETW(dev->ud_ep0desc.wMaxPacketSize, 64); 1157 else 1158 USETW(dev->ud_ep0desc.wMaxPacketSize, USB_MAX_IPACKET); 1159 1160 dev->ud_ep0desc.bInterval = 0; 1161 1162 /* doesn't matter, just don't let it uninitialized */ 1163 dev->ud_ep0.ue_toggle = 0; 1164 1165 dev->ud_quirks = &usbd_no_quirk; 1166 dev->ud_addr = USB_START_ADDR; 1167 dev->ud_ddesc.bMaxPacketSize = 0; 1168 dev->ud_depth = depth; 1169 dev->ud_powersrc = up; 1170 dev->ud_myhub = up->up_parent; 1171 1172 up->up_dev = dev; 1173 1174 /* Locate port on upstream high speed hub */ 1175 for (adev = dev, hub = up->up_parent; 1176 hub != NULL && hub->ud_speed != USB_SPEED_HIGH; 1177 adev = hub, hub = hub->ud_myhub) 1178 ; 1179 if (hub) { 1180 for (p = 0; p < hub->ud_hub->uh_hubdesc.bNbrPorts; p++) { 1181 if (hub->ud_hub->uh_ports[p].up_dev == adev) { 1182 dev->ud_myhsport = &hub->ud_hub->uh_ports[p]; 1183 goto found; 1184 } 1185 } 1186 panic("usbd_new_device: cannot find HS port"); 1187 found: 1188 DPRINTFN(1, "high speed port %d", p, 0, 0, 0); 1189 } else { 1190 dev->ud_myhsport = NULL; 1191 } 1192 dev->ud_speed = speed; 1193 dev->ud_langid = USBD_NOLANG; 1194 dev->ud_cookie.cookie = ++usb_cookie_no; 1195 1196 /* Establish the default pipe. */ 1197 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1198 &dev->ud_pipe0, USBD_MPSAFE); 1199 if (err) { 1200 usbd_remove_device(dev, up); 1201 return err; 1202 } 1203 1204 dd = &dev->ud_ddesc; 1205 /* Try a few times in case the device is slow (i.e. outside specs.) */ 1206 for (i = 0; i < 10; i++) { 1207 /* Get the first 8 bytes of the device descriptor. */ 1208 err = usbd_get_initial_ddesc(dev, dd); 1209 if (!err) 1210 break; 1211 usbd_delay_ms(dev, 200); 1212 if ((i & 3) == 3) 1213 usbd_reset_port(up->up_parent, port, &ps); 1214 } 1215 if (err) { 1216 DPRINTF("addr=%d, getting first desc failed: %d", addr, err, 1217 0, 0); 1218 usbd_remove_device(dev, up); 1219 return err; 1220 } 1221 1222 /* Windows resets the port here, do likewise */ 1223 if (up->up_parent) 1224 usbd_reset_port(up->up_parent, port, &ps); 1225 1226 if (speed == USB_SPEED_HIGH) { 1227 /* Max packet size must be 64 (sec 5.5.3). */ 1228 if (dd->bMaxPacketSize != USB_2_MAX_CTRL_PACKET) { 1229 #ifdef DIAGNOSTIC 1230 printf("usbd_new_device: addr=%d bad max packet " 1231 "size=%d. adjusting to %d.\n", 1232 addr, dd->bMaxPacketSize, USB_2_MAX_CTRL_PACKET); 1233 #endif 1234 dd->bMaxPacketSize = USB_2_MAX_CTRL_PACKET; 1235 } 1236 } 1237 1238 DPRINTF("adding unit addr=%d, rev=%02x, class=%d, subclass=%d", addr, 1239 UGETW(dd->bcdUSB), dd->bDeviceClass, dd->bDeviceSubClass); 1240 DPRINTF("protocol=%d, maxpacket=%d, len=%d, speed=%d", 1241 dd->bDeviceProtocol, dd->bMaxPacketSize, dd->bLength, dev->ud_speed); 1242 1243 if (dd->bDescriptorType != UDESC_DEVICE) { 1244 /* Illegal device descriptor */ 1245 DPRINTF("illegal descriptor %d", dd->bDescriptorType, 0, 0, 0); 1246 usbd_remove_device(dev, up); 1247 return USBD_INVAL; 1248 } 1249 1250 if (dd->bLength < USB_DEVICE_DESCRIPTOR_SIZE) { 1251 DPRINTF("bad length %d", dd->bLength, 0, 0, 0); 1252 usbd_remove_device(dev, up); 1253 return USBD_INVAL; 1254 } 1255 1256 USETW(dev->ud_ep0desc.wMaxPacketSize, dd->bMaxPacketSize); 1257 1258 /* Re-establish the default pipe with the new MPS. */ 1259 usbd_kill_pipe(dev->ud_pipe0); 1260 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1261 &dev->ud_pipe0, USBD_MPSAFE); 1262 if (err) { 1263 DPRINTF("setup default pipe failed err %d", err, 0, 0, 0); 1264 usbd_remove_device(dev, up); 1265 return err; 1266 } 1267 1268 /* Set the address */ 1269 DPRINTFN(5, "setting device address=%d", addr, 0, 0, 0); 1270 err = usbd_set_address(dev, addr); 1271 if (err) { 1272 DPRINTF("set address %d failed, err = %d", addr, err, 0, 0); 1273 err = USBD_SET_ADDR_FAILED; 1274 usbd_remove_device(dev, up); 1275 return err; 1276 } 1277 1278 /* Allow device time to set new address */ 1279 usbd_delay_ms(dev, USB_SET_ADDRESS_SETTLE); 1280 dev->ud_addr = addr; /* new device address now */ 1281 bus->ub_devices[addr] = dev; 1282 1283 /* Re-establish the default pipe with the new address. */ 1284 usbd_kill_pipe(dev->ud_pipe0); 1285 err = usbd_setup_pipe_flags(dev, 0, &dev->ud_ep0, USBD_DEFAULT_INTERVAL, 1286 &dev->ud_pipe0, USBD_MPSAFE); 1287 if (err) { 1288 DPRINTF("setup default pipe failed, err = %d", err, 0, 0, 0); 1289 usbd_remove_device(dev, up); 1290 return err; 1291 } 1292 1293 err = usbd_reload_device_desc(dev); 1294 if (err) { 1295 DPRINTF("addr=%d, getting full desc failed, err = %d", addr, 1296 err, 0, 0); 1297 usbd_remove_device(dev, up); 1298 return err; 1299 } 1300 1301 /* Assume 100mA bus powered for now. Changed when configured. */ 1302 dev->ud_power = USB_MIN_POWER; 1303 dev->ud_selfpowered = 0; 1304 1305 DPRINTF("new dev (addr %d), dev=%p, parent=%p", addr, dev, parent, 0); 1306 1307 usbd_add_dev_event(USB_EVENT_DEVICE_ATTACH, dev); 1308 1309 if (port == 0) { /* root hub */ 1310 KASSERT(addr == 1); 1311 usbd_attach_roothub(parent, dev); 1312 return USBD_NORMAL_COMPLETION; 1313 } 1314 1315 err = usbd_probe_and_attach(parent, dev, port, addr); 1316 if (err) { 1317 usbd_remove_device(dev, up); 1318 return err; 1319 } 1320 1321 return USBD_NORMAL_COMPLETION; 1322 } 1323 1324 usbd_status 1325 usbd_reload_device_desc(struct usbd_device *dev) 1326 { 1327 usbd_status err; 1328 1329 /* Get the full device descriptor. */ 1330 err = usbd_get_device_desc(dev, &dev->ud_ddesc); 1331 if (err) 1332 return err; 1333 1334 /* Figure out what's wrong with this device. */ 1335 dev->ud_quirks = usbd_find_quirk(&dev->ud_ddesc); 1336 1337 return USBD_NORMAL_COMPLETION; 1338 } 1339 1340 void 1341 usbd_remove_device(struct usbd_device *dev, struct usbd_port *up) 1342 { 1343 1344 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1345 1346 DPRINTF("dev %p", dev, 0, 0, 0); 1347 1348 if (dev->ud_pipe0 != NULL) 1349 usbd_kill_pipe(dev->ud_pipe0); 1350 up->up_dev = NULL; 1351 dev->ud_bus->ub_devices[dev->ud_addr] = NULL; 1352 1353 kmem_free(dev, sizeof(*dev)); 1354 } 1355 1356 int 1357 usbd_print(void *aux, const char *pnp) 1358 { 1359 struct usb_attach_arg *uaa = aux; 1360 1361 if (pnp) { 1362 #define USB_DEVINFO 1024 1363 char *devinfo; 1364 if (!uaa->uaa_usegeneric) 1365 return QUIET; 1366 devinfo = kmem_alloc(USB_DEVINFO, KM_SLEEP); 1367 usbd_devinfo(uaa->uaa_device, 1, devinfo, USB_DEVINFO); 1368 aprint_normal("%s, %s", devinfo, pnp); 1369 kmem_free(devinfo, USB_DEVINFO); 1370 } 1371 aprint_normal(" port %d", uaa->uaa_port); 1372 #if 0 1373 /* 1374 * It gets very crowded with these locators on the attach line. 1375 * They are not really needed since they are printed in the clear 1376 * by each driver. 1377 */ 1378 if (uaa->uaa_vendor != UHUB_UNK_VENDOR) 1379 aprint_normal(" vendor 0x%04x", uaa->uaa_vendor); 1380 if (uaa->uaa_product != UHUB_UNK_PRODUCT) 1381 aprint_normal(" product 0x%04x", uaa->uaa_product); 1382 if (uaa->uaa_release != UHUB_UNK_RELEASE) 1383 aprint_normal(" release 0x%04x", uaa->uaa_release); 1384 #endif 1385 return UNCONF; 1386 } 1387 1388 int 1389 usbd_ifprint(void *aux, const char *pnp) 1390 { 1391 struct usbif_attach_arg *uiaa = aux; 1392 1393 if (pnp) 1394 return QUIET; 1395 aprint_normal(" port %d", uiaa->uiaa_port); 1396 aprint_normal(" configuration %d", uiaa->uiaa_configno); 1397 aprint_normal(" interface %d", uiaa->uiaa_ifaceno); 1398 #if 0 1399 /* 1400 * It gets very crowded with these locators on the attach line. 1401 * They are not really needed since they are printed in the clear 1402 * by each driver. 1403 */ 1404 if (uaa->uaa_vendor != UHUB_UNK_VENDOR) 1405 aprint_normal(" vendor 0x%04x", uaa->uaa_vendor); 1406 if (uaa->uaa_product != UHUB_UNK_PRODUCT) 1407 aprint_normal(" product 0x%04x", uaa->uaa_product); 1408 if (uaa->uaa_release != UHUB_UNK_RELEASE) 1409 aprint_normal(" release 0x%04x", uaa->uaa_release); 1410 #endif 1411 return UNCONF; 1412 } 1413 1414 void 1415 usbd_fill_deviceinfo(struct usbd_device *dev, struct usb_device_info *di, 1416 int usedev) 1417 { 1418 struct usbd_port *p; 1419 int i, j, err, s; 1420 1421 di->udi_bus = device_unit(dev->ud_bus->ub_usbctl); 1422 di->udi_addr = dev->ud_addr; 1423 di->udi_cookie = dev->ud_cookie; 1424 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1425 di->udi_product, sizeof(di->udi_product), usedev, 1); 1426 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1427 UGETW(dev->ud_ddesc.bcdDevice)); 1428 di->udi_serial[0] = 0; 1429 if (usedev) 1430 (void)usbd_get_string(dev, dev->ud_ddesc.iSerialNumber, 1431 di->udi_serial); 1432 di->udi_vendorNo = UGETW(dev->ud_ddesc.idVendor); 1433 di->udi_productNo = UGETW(dev->ud_ddesc.idProduct); 1434 di->udi_releaseNo = UGETW(dev->ud_ddesc.bcdDevice); 1435 di->udi_class = dev->ud_ddesc.bDeviceClass; 1436 di->udi_subclass = dev->ud_ddesc.bDeviceSubClass; 1437 di->udi_protocol = dev->ud_ddesc.bDeviceProtocol; 1438 di->udi_config = dev->ud_config; 1439 di->udi_power = dev->ud_selfpowered ? 0 : dev->ud_power; 1440 di->udi_speed = dev->ud_speed; 1441 1442 if (dev->ud_subdevlen > 0) { 1443 for (i = 0, j = 0; i < dev->ud_subdevlen && 1444 j < USB_MAX_DEVNAMES; i++) { 1445 if (!dev->ud_subdevs[i]) 1446 continue; 1447 strncpy(di->udi_devnames[j], 1448 device_xname(dev->ud_subdevs[i]), USB_MAX_DEVNAMELEN); 1449 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1450 j++; 1451 } 1452 } else { 1453 j = 0; 1454 } 1455 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1456 di->udi_devnames[j][0] = 0; /* empty */ 1457 1458 if (dev->ud_hub) { 1459 for (i = 0; 1460 i < sizeof(di->udi_ports) / sizeof(di->udi_ports[0]) && 1461 i < dev->ud_hub->uh_hubdesc.bNbrPorts; 1462 i++) { 1463 p = &dev->ud_hub->uh_ports[i]; 1464 if (p->up_dev) 1465 err = p->up_dev->ud_addr; 1466 else { 1467 s = UGETW(p->up_status.wPortStatus); 1468 if (s & UPS_PORT_ENABLED) 1469 err = USB_PORT_ENABLED; 1470 else if (s & UPS_SUSPEND) 1471 err = USB_PORT_SUSPENDED; 1472 /* 1473 * Note: UPS_PORT_POWER_SS is available only 1474 * on 3.x, and UPS_PORT_POWER is available 1475 * only on 2.0 or 1.1. 1476 */ 1477 else if (USB_IS_SS(dev->ud_speed) && 1478 (s & UPS_PORT_POWER_SS)) 1479 err = USB_PORT_POWERED; 1480 else if (s & UPS_PORT_POWER) 1481 err = USB_PORT_POWERED; 1482 else 1483 err = USB_PORT_DISABLED; 1484 } 1485 di->udi_ports[i] = err; 1486 } 1487 di->udi_nports = dev->ud_hub->uh_hubdesc.bNbrPorts; 1488 } else 1489 di->udi_nports = 0; 1490 } 1491 1492 #ifdef COMPAT_30 1493 void 1494 usbd_fill_deviceinfo_old(struct usbd_device *dev, struct usb_device_info_old *di, 1495 int usedev) 1496 { 1497 struct usbd_port *p; 1498 int i, j, err, s; 1499 1500 di->udi_bus = device_unit(dev->ud_bus->ub_usbctl); 1501 di->udi_addr = dev->ud_addr; 1502 di->udi_cookie = dev->ud_cookie; 1503 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1504 di->udi_product, sizeof(di->udi_product), usedev, 0); 1505 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1506 UGETW(dev->ud_ddesc.bcdDevice)); 1507 di->udi_vendorNo = UGETW(dev->ud_ddesc.idVendor); 1508 di->udi_productNo = UGETW(dev->ud_ddesc.idProduct); 1509 di->udi_releaseNo = UGETW(dev->ud_ddesc.bcdDevice); 1510 di->udi_class = dev->ud_ddesc.bDeviceClass; 1511 di->udi_subclass = dev->ud_ddesc.bDeviceSubClass; 1512 di->udi_protocol = dev->ud_ddesc.bDeviceProtocol; 1513 di->udi_config = dev->ud_config; 1514 di->udi_power = dev->ud_selfpowered ? 0 : dev->ud_power; 1515 di->udi_speed = dev->ud_speed; 1516 1517 if (dev->ud_subdevlen > 0) { 1518 for (i = 0, j = 0; i < dev->ud_subdevlen && 1519 j < USB_MAX_DEVNAMES; i++) { 1520 if (!dev->ud_subdevs[i]) 1521 continue; 1522 strncpy(di->udi_devnames[j], 1523 device_xname(dev->ud_subdevs[i]), USB_MAX_DEVNAMELEN); 1524 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1525 j++; 1526 } 1527 } else { 1528 j = 0; 1529 } 1530 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1531 di->udi_devnames[j][0] = 0; /* empty */ 1532 1533 if (dev->ud_hub) { 1534 for (i = 0; 1535 i < sizeof(di->udi_ports) / sizeof(di->udi_ports[0]) && 1536 i < dev->ud_hub->uh_hubdesc.bNbrPorts; 1537 i++) { 1538 p = &dev->ud_hub->uh_ports[i]; 1539 if (p->up_dev) 1540 err = p->up_dev->ud_addr; 1541 else { 1542 s = UGETW(p->up_status.wPortStatus); 1543 if (s & UPS_PORT_ENABLED) 1544 err = USB_PORT_ENABLED; 1545 else if (s & UPS_SUSPEND) 1546 err = USB_PORT_SUSPENDED; 1547 else if (s & UPS_PORT_POWER) 1548 err = USB_PORT_POWERED; 1549 else 1550 err = USB_PORT_DISABLED; 1551 } 1552 di->udi_ports[i] = err; 1553 } 1554 di->udi_nports = dev->ud_hub->uh_hubdesc.bNbrPorts; 1555 } else 1556 di->udi_nports = 0; 1557 } 1558 #endif 1559 1560 1561 void 1562 usb_free_device(struct usbd_device *dev) 1563 { 1564 int ifcidx, nifc; 1565 1566 if (dev->ud_pipe0 != NULL) 1567 usbd_kill_pipe(dev->ud_pipe0); 1568 if (dev->ud_ifaces != NULL) { 1569 nifc = dev->ud_cdesc->bNumInterface; 1570 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 1571 usbd_free_iface_data(dev, ifcidx); 1572 kmem_free(dev->ud_ifaces, 1573 nifc * sizeof(struct usbd_interface)); 1574 } 1575 if (dev->ud_cdesc != NULL) 1576 kmem_free(dev->ud_cdesc, UGETW(dev->ud_cdesc->wTotalLength)); 1577 if (dev->ud_bdesc != NULL) 1578 kmem_free(dev->ud_bdesc, UGETW(dev->ud_bdesc->wTotalLength)); 1579 if (dev->ud_subdevlen > 0) { 1580 kmem_free(dev->ud_subdevs, 1581 dev->ud_subdevlen * sizeof(device_t)); 1582 dev->ud_subdevlen = 0; 1583 } 1584 kmem_free(dev, sizeof(*dev)); 1585 } 1586 1587 /* 1588 * The general mechanism for detaching drivers works as follows: Each 1589 * driver is responsible for maintaining a reference count on the 1590 * number of outstanding references to its softc (e.g. from 1591 * processing hanging in a read or write). The detach method of the 1592 * driver decrements this counter and flags in the softc that the 1593 * driver is dying and then wakes any sleepers. It then sleeps on the 1594 * softc. Each place that can sleep must maintain the reference 1595 * count. When the reference count drops to -1 (0 is the normal value 1596 * of the reference count) the a wakeup on the softc is performed 1597 * signaling to the detach waiter that all references are gone. 1598 */ 1599 1600 /* 1601 * Called from process context when we discover that a port has 1602 * been disconnected. 1603 */ 1604 int 1605 usb_disconnect_port(struct usbd_port *up, device_t parent, int flags) 1606 { 1607 struct usbd_device *dev = up->up_dev; 1608 device_t subdev; 1609 char subdevname[16]; 1610 const char *hubname = device_xname(parent); 1611 int i, rc; 1612 1613 USBHIST_FUNC(); USBHIST_CALLED(usbdebug); 1614 DPRINTFN(3, "up=%p dev=%p port=%d", up, dev, up->up_portno, 0); 1615 1616 if (dev == NULL) { 1617 #ifdef DIAGNOSTIC 1618 printf("usb_disconnect_port: no device\n"); 1619 #endif 1620 return 0; 1621 } 1622 1623 if (dev->ud_subdevlen > 0) { 1624 DPRINTFN(3, "disconnect subdevs", 0, 0, 0, 0); 1625 for (i = 0; i < dev->ud_subdevlen; i++) { 1626 if ((subdev = dev->ud_subdevs[i]) == NULL) 1627 continue; 1628 strlcpy(subdevname, device_xname(subdev), 1629 sizeof(subdevname)); 1630 if ((rc = config_detach(subdev, flags)) != 0) 1631 return rc; 1632 printf("%s: at %s", subdevname, hubname); 1633 if (up->up_portno != 0) 1634 printf(" port %d", up->up_portno); 1635 printf(" (addr %d) disconnected\n", dev->ud_addr); 1636 } 1637 KASSERT(!dev->ud_nifaces_claimed); 1638 } 1639 1640 usbd_add_dev_event(USB_EVENT_DEVICE_DETACH, dev); 1641 dev->ud_bus->ub_devices[dev->ud_addr] = NULL; 1642 up->up_dev = NULL; 1643 usb_free_device(dev); 1644 return 0; 1645 } 1646
Indexes created Sat Sep 27 14:09:57 GMT 2025