usb_subr.c revision 1.2
1 /* $NetBSD: usb_subr.c,v 1.2 1998/07/16 12:55:19 is Exp $ */ 2 3 /* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Author: Lennart Augustsson <augustss (at) carlstedt.se> 8 * Carlstedt Research & Technology 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/malloc.h> 43 #include <sys/device.h> 44 #include <sys/proc.h> 45 #include <sys/select.h> 46 47 #include <dev/usb/usb.h> 48 49 #include <dev/usb/usbdi.h> 50 #include <dev/usb/usbdi_util.h> 51 #include <dev/usb/usbdivar.h> 52 #include <dev/usb/usbdevs.h> 53 #include <dev/usb/usb_quirks.h> 54 55 #include "opt_usbverbose.h" 56 57 #ifdef USB_DEBUG 58 #define DPRINTF(x) if (usbdebug) printf x 59 #define DPRINTFN(n,x) if (usbdebug>(n)) printf x 60 extern int usbdebug; 61 #else 62 #define DPRINTF(x) 63 #define DPRINTFN(n,x) 64 #endif 65 66 char *usbd_get_string __P((usbd_device_handle, int, char *)); 67 usbd_status usbd_get_desc __P((usbd_device_handle dev, int type, 68 int index, int len, void *desc)); 69 int usbd_getnewaddr __P((usbd_bus_handle bus)); 70 int usbd_print __P((void *aux, const char *pnp)); 71 int usbd_submatch __P((struct device *, struct cfdata *cf, void *)); 72 usb_interface_descriptor_t *usbd_find_idesc __P((usb_config_descriptor_t *cd, 73 int ino, int ano)); 74 usbd_status usbd_fill_iface_data __P((usbd_device_handle dev, int i, int a)); 75 void usbd_free_iface_data __P((usbd_device_handle dev, int ifcno)); 76 void usbd_kill_pipe __P((usbd_pipe_handle)); 77 78 #ifdef USBVERBOSE 79 typedef u_int16_t usb_vendor_id_t; 80 typedef u_int16_t usb_product_id_t; 81 82 /* 83 * Descriptions of of known vendors and devices ("products"). 84 */ 85 struct usb_knowndev { 86 usb_vendor_id_t vendor; 87 usb_product_id_t product; 88 int flags; 89 char *vendorname, *productname; 90 }; 91 #define USB_KNOWNDEV_NOPROD 0x01 /* match on vendor only */ 92 93 #include <dev/usb/usbdevs_data.h> 94 #endif /* USBVERBOSE */ 95 96 97 char * 98 usbd_get_string(dev, si, buf) 99 usbd_device_handle dev; 100 int si; 101 char *buf; 102 { 103 int swap = dev->quirks->uq_flags & UQ_SWAP_UNICODE; 104 usb_device_request_t req; 105 usb_string_descriptor_t us; 106 char *s; 107 int i, n; 108 u_int16_t c; 109 usbd_status r; 110 111 if (si == 0) 112 return 0; 113 req.bmRequestType = UT_READ_DEVICE; 114 req.bRequest = UR_GET_DESCRIPTOR; 115 USETW2(req.wValue, UDESC_STRING, si); 116 USETW(req.wIndex, 0); 117 USETW(req.wLength, 1); /* only size byte first */ 118 r = usbd_do_request(dev, &req, &us); 119 if (r != USBD_NORMAL_COMPLETION) 120 return 0; 121 USETW(req.wLength, us.bLength); /* the whole string */ 122 r = usbd_do_request(dev, &req, &us); 123 if (r != USBD_NORMAL_COMPLETION) 124 return 0; 125 s = buf; 126 n = us.bLength / 2 - 1; 127 for (i = 0; i < n; i++) { 128 c = UGETW(us.bString[i]); 129 /* Convert from Unicode, handle buggy strings. */ 130 if ((c & 0xff00) == 0) 131 *s++ = c; 132 else if ((c & 0x00ff) == 0 && swap) 133 *s++ = c >> 8; 134 else 135 *s++ = '?'; 136 } 137 *s++ = 0; 138 return buf; 139 } 140 141 void 142 usbd_devinfo_vp(dev, v, p) 143 usbd_device_handle dev; 144 char *v, *p; 145 { 146 usb_device_descriptor_t *udd = &dev->ddesc; 147 char *vendor = 0, *product = 0; 148 #ifdef USBVERBOSE 149 struct usb_knowndev *kdp; 150 #endif 151 152 vendor = usbd_get_string(dev, udd->iManufacturer, v); 153 product = usbd_get_string(dev, udd->iProduct, p); 154 #ifdef USBVERBOSE 155 if (!vendor) { 156 for(kdp = usb_knowndevs; 157 kdp->vendorname != NULL; 158 kdp++) { 159 if (kdp->vendor == UGETW(udd->idVendor) && 160 (kdp->product == UGETW(udd->idProduct) || 161 (kdp->flags & USB_KNOWNDEV_NOPROD) != 0)) 162 break; 163 } 164 if (kdp->vendorname == NULL) 165 vendor = product = NULL; 166 else { 167 vendor = kdp->vendorname; 168 product = (kdp->flags & USB_KNOWNDEV_NOPROD) == 0 ? 169 kdp->productname : NULL; 170 } 171 } 172 #endif 173 if (vendor) 174 strcpy(v, vendor); 175 else 176 sprintf(v, "vendor 0x%04x", UGETW(udd->idVendor)); 177 if (product) 178 strcpy(p, product); 179 else 180 sprintf(p, "product 0x%04x", UGETW(udd->idProduct)); 181 } 182 183 int 184 usbd_printBCD(cp, bcd) 185 char *cp; 186 int bcd; 187 { 188 return (sprintf(cp, "%x.%02x", bcd >> 8, bcd & 0xff)); 189 } 190 191 void 192 usbd_devinfo(dev, showclass, cp) 193 usbd_device_handle dev; 194 int showclass; 195 char *cp; 196 { 197 usb_device_descriptor_t *udd = &dev->ddesc; 198 char vendor[USB_MAX_STRING_LEN]; 199 char product[USB_MAX_STRING_LEN]; 200 int bcdDevice, bcdUSB; 201 202 usbd_devinfo_vp(dev, vendor, product); 203 cp += sprintf(cp, "%s", vendor); 204 cp += sprintf(cp, " %s", product); 205 if (showclass) 206 cp += sprintf(cp, " (class %d/%d)", 207 udd->bDeviceClass, udd->bDeviceSubClass); 208 bcdUSB = UGETW(udd->bcdUSB); 209 bcdDevice = UGETW(udd->bcdDevice); 210 cp += sprintf(cp, " (rev "); 211 cp += usbd_printBCD(cp, bcdUSB); 212 *cp++ = '/'; 213 cp += usbd_printBCD(cp, bcdDevice); 214 *cp++ = ')'; 215 cp += sprintf(cp, " (addr %d)", dev->address); 216 } 217 218 /* Delay for a certain number of ms */ 219 void 220 usbd_delay_ms(ms) 221 int ms; 222 { 223 /* Wait at least two clock ticks so we know the time has passed. */ 224 if (usbd_use_polling) 225 delay((ms+1) * 1000); 226 else 227 tsleep(&ms, PRIBIO, "usbdly", (ms*hz+999)/1000 + 1); 228 } 229 230 usbd_status 231 usbd_reset_port(dev, port, ps) 232 usbd_device_handle dev; 233 int port; 234 usb_port_status_t *ps; 235 { 236 usb_device_request_t req; 237 usbd_status r; 238 int n; 239 240 req.bmRequestType = UT_WRITE_CLASS_OTHER; 241 req.bRequest = UR_SET_FEATURE; 242 USETW(req.wValue, UHF_PORT_RESET); 243 USETW(req.wIndex, port); 244 USETW(req.wLength, 0); 245 r = usbd_do_request(dev, &req, 0); 246 DPRINTFN(1,("usbd_reset_port: port %d reset done, error=%d\n", 247 port, r)); 248 if (r != USBD_NORMAL_COMPLETION) 249 return (r); 250 n = 10; 251 do { 252 /* Wait for device to recover from reset. */ 253 usbd_delay_ms(USB_PORT_RESET_DELAY); 254 r = usbd_get_port_status(dev, port, ps); 255 if (r != USBD_NORMAL_COMPLETION) { 256 DPRINTF(("usbd_reset_port: get status failed %d\n",r)); 257 return (r); 258 } 259 } while ((UGETW(ps->wPortChange) & UPS_C_PORT_RESET) == 0 && --n > 0); 260 if (n == 0) { 261 printf("usbd_reset_port: timeout\n"); 262 return (USBD_IOERROR); 263 } 264 r = usbd_clear_port_feature(dev, port, UHF_C_PORT_RESET); 265 #ifdef USB_DEBUG 266 if (r != USBD_NORMAL_COMPLETION) 267 DPRINTF(("usbd_reset_port: clear port feature failed %d\n",r)); 268 #endif 269 return (r); 270 } 271 272 usb_interface_descriptor_t * 273 usbd_find_idesc(cd, ino, ano) 274 usb_config_descriptor_t *cd; 275 int ino; 276 int ano; 277 { 278 char *p = (char *)cd; 279 char *end = p + UGETW(cd->wTotalLength); 280 usb_interface_descriptor_t *d; 281 282 for (; p < end; p += d->bLength) { 283 d = (usb_interface_descriptor_t *)p; 284 if (p + d->bLength <= end && 285 d->bDescriptorType == UDESC_INTERFACE && 286 d->bInterfaceNumber == ino && d->bAlternateSetting == ano) 287 return (d); 288 } 289 return (0); 290 } 291 292 usbd_status 293 usbd_fill_iface_data(dev, ino, ano) 294 usbd_device_handle dev; 295 int ino; 296 int ano; 297 { 298 usbd_interface_handle ifc = &dev->ifaces[ino]; 299 usb_endpoint_descriptor_t *ed; 300 char *p, *end; 301 int endpt, nendpt; 302 usbd_status r; 303 304 DPRINTFN(5,("usbd_fill_iface_data: ino=%d ano=%d\n", ino, ano)); 305 ifc->device = dev; 306 ifc->state = USBD_INTERFACE_ACTIVE; 307 ifc->idesc = usbd_find_idesc(dev->cdesc, ino, ano); 308 if (ifc->idesc == 0) 309 return (USBD_INVAL); 310 nendpt = ifc->idesc->bNumEndpoints; 311 DPRINTFN(10,("usbd_fill_iface_data: found idesc n=%d\n", nendpt)); 312 if (nendpt != 0) { 313 ifc->endpoints = malloc(nendpt * sizeof(struct usbd_endpoint), 314 M_USB, M_NOWAIT); 315 if (ifc->endpoints == 0) 316 return (USBD_NOMEM); 317 } else 318 ifc->endpoints = 0; 319 ifc->priv = 0; 320 p = (char *)ifc->idesc + ifc->idesc->bLength; 321 end = (char *)dev->cdesc + UGETW(dev->cdesc->wTotalLength); 322 for (endpt = 0; endpt < nendpt; endpt++) { 323 DPRINTFN(10,("usbd_fill_iface_data: endpt=%d\n", endpt)); 324 for (; p < end; p += ed->bLength) { 325 ed = (usb_endpoint_descriptor_t *)p; 326 DPRINTFN(10,("usbd_fill_iface_data: p=%p end=%p len=%d type=%d\n", 327 p, end, ed->bLength, ed->bDescriptorType)); 328 if (p + ed->bLength <= end && 329 ed->bDescriptorType == UDESC_ENDPOINT) 330 goto found; 331 if (ed->bDescriptorType == UDESC_INTERFACE) 332 break; 333 } 334 r = USBD_INVAL; 335 goto bad; 336 found: 337 ifc->endpoints[endpt].edesc = ed; 338 ifc->endpoints[endpt].state = USBD_ENDPOINT_ACTIVE; 339 ifc->endpoints[endpt].refcnt = 0; 340 ifc->endpoints[endpt].toggle = 0; 341 } 342 LIST_INIT(&ifc->pipes); 343 return (USBD_NORMAL_COMPLETION); 344 bad: 345 free(ifc->endpoints, M_USB); 346 return (r); 347 } 348 349 void 350 usbd_free_iface_data(dev, ifcno) 351 usbd_device_handle dev; 352 int ifcno; 353 { 354 usbd_interface_handle ifc = &dev->ifaces[ifcno]; 355 if (ifc->endpoints) 356 free(ifc->endpoints, M_USB); 357 } 358 359 usbd_status 360 usbd_set_config_no(dev, no, confp) 361 usbd_device_handle dev; 362 int no; 363 int *confp; 364 { 365 usb_status_t ds; 366 usb_hub_status_t hs; 367 usb_config_descriptor_t cd, *cdp; 368 usbd_status r; 369 int ifcno, nifc, len, selfpowered, power; 370 371 DPRINTFN(5, ("usbd_set_config_no: dev=%p no=%d\n", dev, no)); 372 373 /* XXX check that all interfaces are idle */ 374 if (dev->config != 0) { 375 DPRINTF(("usbd_set_config_no: free old config\n")); 376 /* Free all configuration data structures. */ 377 nifc = dev->cdesc->bNumInterface; 378 for (ifcno = 0; ifcno < nifc; ifcno++) 379 usbd_free_iface_data(dev, ifcno); 380 free(dev->ifaces, M_USB); 381 free(dev->cdesc, M_USB); 382 dev->ifaces = 0; 383 dev->cdesc = 0; 384 dev->config = 0; 385 dev->state = USBD_DEVICE_ADDRESSED; 386 } 387 388 /* Figure out what config number to use. */ 389 r = usbd_get_config_desc(dev, no, &cd); 390 if (r != USBD_NORMAL_COMPLETION) 391 return (r); 392 len = UGETW(cd.wTotalLength); 393 cdp = malloc(len, M_USB, M_NOWAIT); 394 if (cdp == 0) 395 return (USBD_NOMEM); 396 r = usbd_get_desc(dev, UDESC_CONFIG, no, len, cdp); 397 if (r != USBD_NORMAL_COMPLETION) 398 goto bad; 399 selfpowered = 0; 400 if (cdp->bmAttributes & UC_SELF_POWERED) { 401 /* May be self powered. */ 402 if (cdp->bmAttributes & UC_BUS_POWERED) { 403 /* Must ask device. */ 404 if (dev->quirks->uq_flags & UQ_HUB_POWER) { 405 /* Buggy hub, use hub descriptor. */ 406 r = usbd_get_hub_status(dev, &hs); 407 if (r == USBD_NORMAL_COMPLETION && 408 !(UGETW(hs.wHubStatus) & UHS_LOCAL_POWER)) 409 selfpowered = 1; 410 } else { 411 r = usbd_get_device_status(dev, &ds); 412 if (r == USBD_NORMAL_COMPLETION && 413 (UGETW(ds.wStatus) & UDS_SELF_POWERED)) 414 selfpowered = 1; 415 } 416 DPRINTF(("usbd_set_config_no: status=0x%04x, error=%d\n", 417 UGETW(ds.wStatus), r)); 418 } else 419 selfpowered = 1; 420 } 421 DPRINTF(("usbd_set_config_no: (addr %d) attr=0x%02x, selfpowered=%d, power=%d, powerquirk=%x\n", 422 dev->address, cdp->bmAttributes, 423 selfpowered, cdp->bMaxPower * 2, 424 dev->quirks->uq_flags & UQ_HUB_POWER)); 425 #ifdef USB_DEBUG 426 if (!dev->powersrc) { 427 printf("usbd_set_config_no: No power source?\n"); 428 return (EIO); 429 } 430 #endif 431 power = cdp->bMaxPower * 2; 432 if (power > dev->powersrc->power) { 433 /* XXX print nicer message. */ 434 printf("usb: device addr %d (config %d) exceeds power budget, %d mA > %d mA\n", 435 dev->address, cdp->bConfigurationValue, 436 power, dev->powersrc->power); 437 r = USBD_NO_POWER; 438 goto bad; 439 } 440 dev->power = power; 441 dev->self_powered = selfpowered; 442 443 if (confp) 444 *confp = cdp->bConfigurationValue; 445 r = usbd_set_config(dev, cdp->bConfigurationValue); 446 if (r != USBD_NORMAL_COMPLETION) { 447 DPRINTF(("usbd_set_config_no: setting config=%d failed, error=%d\n", 448 cdp->bConfigurationValue, r)); 449 goto bad; 450 } 451 DPRINTF(("usbd_set_config_no: setting new config %d\n", 452 cdp->bConfigurationValue)); 453 nifc = cdp->bNumInterface; 454 dev->ifaces = malloc(nifc * sizeof(struct usbd_interface), 455 M_USB, M_NOWAIT); 456 if (dev->ifaces == 0) { 457 r = USBD_NOMEM; 458 goto bad; 459 } 460 dev->cdesc = cdp; 461 dev->config = cdp->bConfigurationValue; 462 dev->state = USBD_DEVICE_CONFIGURED; 463 for (ifcno = 0; ifcno < nifc; ifcno++) { 464 r = usbd_fill_iface_data(dev, ifcno, 0); 465 if (r != USBD_NORMAL_COMPLETION) { 466 while (--ifcno >= 0) 467 usbd_free_iface_data(dev, ifcno); 468 goto bad; 469 } 470 } 471 472 return (USBD_NORMAL_COMPLETION); 473 474 bad: 475 free(cdp, M_USB); 476 return (r); 477 } 478 479 /* XXX add function for alternate settings */ 480 481 usbd_status 482 usbd_setup_pipe(dev, iface, ep, pipe) 483 usbd_device_handle dev; 484 usbd_interface_handle iface; 485 struct usbd_endpoint *ep; 486 usbd_pipe_handle *pipe; 487 { 488 usbd_pipe_handle p; 489 usbd_status r; 490 491 DPRINTFN(1,("usbd_setup_pipe: dev=%p iface=%p ep=%p pipe=%p\n", 492 dev, iface, ep, pipe)); 493 p = malloc(dev->bus->pipe_size, M_USB, M_NOWAIT); 494 if (p == 0) 495 return (USBD_NOMEM); 496 p->device = dev; 497 p->iface = iface; 498 p->state = USBD_PIPE_ACTIVE; 499 p->endpoint = ep; 500 ep->refcnt++; 501 p->refcnt = 1; 502 p->intrreqh = 0; 503 p->running = 0; 504 SIMPLEQ_INIT(&p->queue); 505 r = dev->bus->open_pipe(p); 506 if (r != USBD_NORMAL_COMPLETION) { 507 DPRINTF(("usbd_setup_pipe: endpoint=%d failed, error=%d\n", 508 ep->edesc->bEndpointAddress, r)); 509 free(p, M_USB); 510 return (r); 511 } 512 *pipe = p; 513 return (USBD_NORMAL_COMPLETION); 514 } 515 516 /* Abort the device control pipe. */ 517 void 518 usbd_kill_pipe(pipe) 519 usbd_pipe_handle pipe; 520 { 521 pipe->methods->close(pipe); 522 pipe->endpoint->refcnt--; 523 free(pipe, M_USB); 524 } 525 526 int 527 usbd_getnewaddr(bus) 528 usbd_bus_handle bus; 529 { 530 int i; 531 532 for (i = 1; i < USB_MAX_DEVICES; i++) 533 if (bus->devices[i] == 0) 534 return (i); 535 return (-1); 536 } 537 538 /* 539 * Called when a new device has been put in the powered state, 540 * but not yet in the addressed state. 541 * Get initial descriptor, set the address, get full descriptor, 542 * and attach a driver. 543 */ 544 usbd_status 545 usbd_new_device(parent, bus, depth, lowspeed, port, up) 546 struct device *parent; 547 usbd_bus_handle bus; 548 int depth; 549 int lowspeed; 550 int port; 551 struct usbd_port *up; 552 { 553 usbd_device_handle dev; 554 usb_device_descriptor_t *d; 555 usbd_status r; 556 struct usb_attach_arg uaa; 557 int addr; 558 int found, i; 559 560 DPRINTF(("usbd_new_device bus=%p depth=%d lowspeed=%d\n", 561 bus, depth, lowspeed)); 562 addr = usbd_getnewaddr(bus); 563 if (addr < 0) { 564 printf("%s: No free USB addresses, new device ignored.\n", 565 bus->bdev.dv_xname); 566 return (USBD_NO_ADDR); 567 } 568 569 dev = malloc(sizeof *dev, M_USB, M_NOWAIT); 570 if (dev == 0) 571 return (USBD_NOMEM); 572 memset(dev, 0, sizeof(*dev)); 573 574 dev->bus = bus; 575 576 /* Set up default endpoint handle. */ 577 dev->def_ep.edesc = &dev->def_ep_desc; 578 dev->def_ep.state = USBD_ENDPOINT_ACTIVE; 579 dev->def_ep.refcnt = 0; 580 dev->def_ep.toggle = 0; /* XXX */ 581 582 /* Set up default endpoint descriptor. */ 583 dev->def_ep_desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 584 dev->def_ep_desc.bDescriptorType = UDESC_ENDPOINT; 585 dev->def_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 586 dev->def_ep_desc.bmAttributes = UE_CONTROL; 587 USETW(dev->def_ep_desc.wMaxPacketSize, USB_MAX_IPACKET); 588 dev->def_ep_desc.bInterval = 0; 589 590 dev->state = USBD_DEVICE_DEFAULT; 591 dev->quirks = &usbd_no_quirk; 592 dev->address = USB_START_ADDR; 593 dev->ddesc.bMaxPacketSize = USB_MAX_IPACKET; 594 dev->lowspeed = lowspeed != 0; 595 dev->depth = depth; 596 dev->powersrc = up; 597 598 /* Establish the the default pipe. */ 599 r = usbd_setup_pipe(dev, 0, &dev->def_ep, &dev->default_pipe); 600 if (r != USBD_NORMAL_COMPLETION) 601 goto bad1; 602 603 up->device = dev; 604 d = &dev->ddesc; 605 /* Get the first 8 bytes of the device descriptor. */ 606 r = usbd_get_desc(dev, UDESC_DEVICE, 0, USB_MAX_IPACKET, d); 607 if (r != USBD_NORMAL_COMPLETION) { 608 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting first desc failed\n", addr)); 609 goto bad; 610 } 611 612 DPRINTF(("usbd_new_device: adding unit addr=%d, rev=%02x, class=%d, subclass=%d, protocol=%d, maxpacket=%d, ls=%d\n", 613 addr, UGETW(d->bcdUSB), d->bDeviceClass, d->bDeviceSubClass, 614 d->bDeviceProtocol, d->bMaxPacketSize, dev->lowspeed)); 615 616 /* Get the full device descriptor. */ 617 r = usbd_get_device_desc(dev, d); 618 if (r != USBD_NORMAL_COMPLETION) { 619 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting full desc failed\n", addr)); 620 goto bad; 621 } 622 623 /* Figure out what's wrong with this device. */ 624 dev->quirks = usbd_find_quirk(d); 625 626 /* Set the address */ 627 r = usbd_set_address(dev, addr); 628 if (r != USBD_NORMAL_COMPLETION) { 629 DPRINTFN(-1,("usb_new_device: set address %d failed\n",addr)); 630 r = USBD_SET_ADDR_FAILED; 631 goto bad; 632 } 633 dev->address = addr; /* New device address now */ 634 dev->state = USBD_DEVICE_ADDRESSED; 635 bus->devices[addr] = dev; 636 637 /* Assume 100mA bus powered for now. Changed when configured. */ 638 dev->power = USB_MIN_POWER; 639 dev->self_powered = 0; 640 641 DPRINTF(("usbd_new_device: new dev (addr %d), dev=%p, parent=%p\n", 642 addr, dev, parent)); 643 644 uaa.device = dev; 645 uaa.iface = 0; 646 uaa.usegeneric = 0; 647 uaa.port = port; 648 /* First try with device specific drivers. */ 649 if (config_found_sm(parent, &uaa, usbd_print, usbd_submatch) != 0) 650 return (USBD_NORMAL_COMPLETION); 651 652 DPRINTF(("usbd_new_device: no device driver found\n")); 653 /* Next try with interface drivers. */ 654 /* XXX should we try all configurations? */ 655 r = usbd_set_config_no(dev, 0, 0); 656 if (r != USBD_NORMAL_COMPLETION) { 657 printf("%s: set config at addr %d failed, error=%d\n", 658 parent->dv_xname, addr, r); 659 goto bad; 660 } 661 for (found = i = 0; i < dev->cdesc->bNumInterface; i++) { 662 uaa.iface = &dev->ifaces[i]; 663 if (config_found_sm(parent, &uaa, usbd_print, usbd_submatch)) 664 found++; 665 } 666 if (found != 0) 667 return (USBD_NORMAL_COMPLETION); 668 669 DPRINTF(("usbd_new_device: no interface drivers found\n")); 670 671 /* Finally try the generic driver. */ 672 uaa.iface = 0; 673 uaa.usegeneric = 1; 674 if (config_found_sm(parent, &uaa, usbd_print, usbd_submatch) != 0) 675 return (USBD_NORMAL_COMPLETION); 676 677 DPRINTF(("usbd_new_device: generic attach failed\n")); 678 679 return (USBD_NORMAL_COMPLETION); 680 681 bad: 682 usbd_kill_pipe(dev->default_pipe); 683 bad1: 684 up->device = 0; 685 bus->devices[addr] = 0; 686 free(dev, M_USB); 687 return (r); 688 } 689 690 int 691 usbd_print(aux, pnp) 692 void *aux; 693 const char *pnp; 694 { 695 struct usb_attach_arg *uaa = aux; 696 char devinfo[1024]; 697 698 DPRINTFN(15, ("usbd_print dev=%p\n", uaa->device)); 699 if (pnp) { 700 if (!uaa->usegeneric) 701 return (QUIET); 702 usbd_devinfo(uaa->device, 1, devinfo); 703 printf("%s at %s", devinfo, pnp); 704 } 705 if (uaa->port != 0) 706 printf(" port %d", uaa->port); 707 return (UNCONF); 708 } 709 710 int 711 usbd_submatch(parent, cf, aux) 712 struct device *parent; 713 struct cfdata *cf; 714 void *aux; 715 { 716 struct usb_attach_arg *uaa = aux; 717 718 if (uaa->port != 0 && 719 cf->uhubcf_port != UHUB_UNK_PORT && 720 cf->uhubcf_port != uaa->port) 721 return 0; 722 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 723 } 724
Indexes created Thu Sep 25 08:09:54 GMT 2025