usb_subr.c revision 1.4
1 /* $NetBSD: usb_subr.c,v 1.4 1998/07/23 01:46:27 augustss 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) 361 usbd_device_handle dev; 362 int no; 363 { 364 usb_status_t ds; 365 usb_hub_status_t hs; 366 usb_config_descriptor_t cd, *cdp; 367 usbd_status r; 368 int ifcno, nifc, len, selfpowered, power; 369 370 DPRINTFN(5, ("usbd_set_config_no: dev=%p no=%d\n", dev, no)); 371 372 /* XXX check that all interfaces are idle */ 373 if (dev->config != 0) { 374 DPRINTF(("usbd_set_config_no: free old config\n")); 375 /* Free all configuration data structures. */ 376 nifc = dev->cdesc->bNumInterface; 377 for (ifcno = 0; ifcno < nifc; ifcno++) 378 usbd_free_iface_data(dev, ifcno); 379 free(dev->ifaces, M_USB); 380 free(dev->cdesc, M_USB); 381 dev->ifaces = 0; 382 dev->cdesc = 0; 383 dev->config = 0; 384 dev->state = USBD_DEVICE_ADDRESSED; 385 } 386 387 /* Figure out what config number to use. */ 388 r = usbd_get_config_desc(dev, no, &cd); 389 if (r != USBD_NORMAL_COMPLETION) 390 return (r); 391 len = UGETW(cd.wTotalLength); 392 cdp = malloc(len, M_USB, M_NOWAIT); 393 if (cdp == 0) 394 return (USBD_NOMEM); 395 r = usbd_get_desc(dev, UDESC_CONFIG, no, len, cdp); 396 if (r != USBD_NORMAL_COMPLETION) 397 goto bad; 398 selfpowered = 0; 399 if (cdp->bmAttributes & UC_SELF_POWERED) { 400 /* May be self powered. */ 401 if (cdp->bmAttributes & UC_BUS_POWERED) { 402 /* Must ask device. */ 403 if (dev->quirks->uq_flags & UQ_HUB_POWER) { 404 /* Buggy hub, use hub descriptor. */ 405 r = usbd_get_hub_status(dev, &hs); 406 if (r == USBD_NORMAL_COMPLETION && 407 !(UGETW(hs.wHubStatus) & UHS_LOCAL_POWER)) 408 selfpowered = 1; 409 } else { 410 r = usbd_get_device_status(dev, &ds); 411 if (r == USBD_NORMAL_COMPLETION && 412 (UGETW(ds.wStatus) & UDS_SELF_POWERED)) 413 selfpowered = 1; 414 } 415 DPRINTF(("usbd_set_config_no: status=0x%04x, error=%d\n", 416 UGETW(ds.wStatus), r)); 417 } else 418 selfpowered = 1; 419 } 420 DPRINTF(("usbd_set_config_no: (addr %d) attr=0x%02x, selfpowered=%d, power=%d, powerquirk=%x\n", 421 dev->address, cdp->bmAttributes, 422 selfpowered, cdp->bMaxPower * 2, 423 dev->quirks->uq_flags & UQ_HUB_POWER)); 424 #ifdef USB_DEBUG 425 if (!dev->powersrc) { 426 printf("usbd_set_config_no: No power source?\n"); 427 return (EIO); 428 } 429 #endif 430 power = cdp->bMaxPower * 2; 431 if (power > dev->powersrc->power) { 432 /* XXX print nicer message. */ 433 printf("usb: device addr %d (config %d) exceeds power budget, %d mA > %d mA\n", 434 dev->address, cdp->bConfigurationValue, 435 power, dev->powersrc->power); 436 r = USBD_NO_POWER; 437 goto bad; 438 } 439 dev->power = power; 440 dev->self_powered = selfpowered; 441 442 r = usbd_set_config(dev, cdp->bConfigurationValue); 443 if (r != USBD_NORMAL_COMPLETION) { 444 DPRINTF(("usbd_set_config_no: setting config=%d failed, error=%d\n", 445 cdp->bConfigurationValue, r)); 446 goto bad; 447 } 448 DPRINTF(("usbd_set_config_no: setting new config %d\n", 449 cdp->bConfigurationValue)); 450 nifc = cdp->bNumInterface; 451 dev->ifaces = malloc(nifc * sizeof(struct usbd_interface), 452 M_USB, M_NOWAIT); 453 if (dev->ifaces == 0) { 454 r = USBD_NOMEM; 455 goto bad; 456 } 457 dev->cdesc = cdp; 458 dev->config = cdp->bConfigurationValue; 459 dev->state = USBD_DEVICE_CONFIGURED; 460 for (ifcno = 0; ifcno < nifc; ifcno++) { 461 r = usbd_fill_iface_data(dev, ifcno, 0); 462 if (r != USBD_NORMAL_COMPLETION) { 463 while (--ifcno >= 0) 464 usbd_free_iface_data(dev, ifcno); 465 goto bad; 466 } 467 } 468 469 return (USBD_NORMAL_COMPLETION); 470 471 bad: 472 free(cdp, M_USB); 473 return (r); 474 } 475 476 /* XXX add function for alternate settings */ 477 478 usbd_status 479 usbd_setup_pipe(dev, iface, ep, pipe) 480 usbd_device_handle dev; 481 usbd_interface_handle iface; 482 struct usbd_endpoint *ep; 483 usbd_pipe_handle *pipe; 484 { 485 usbd_pipe_handle p; 486 usbd_status r; 487 488 DPRINTFN(1,("usbd_setup_pipe: dev=%p iface=%p ep=%p pipe=%p\n", 489 dev, iface, ep, pipe)); 490 p = malloc(dev->bus->pipe_size, M_USB, M_NOWAIT); 491 if (p == 0) 492 return (USBD_NOMEM); 493 p->device = dev; 494 p->iface = iface; 495 p->state = USBD_PIPE_ACTIVE; 496 p->endpoint = ep; 497 ep->refcnt++; 498 p->refcnt = 1; 499 p->intrreqh = 0; 500 p->running = 0; 501 SIMPLEQ_INIT(&p->queue); 502 r = dev->bus->open_pipe(p); 503 if (r != USBD_NORMAL_COMPLETION) { 504 DPRINTF(("usbd_setup_pipe: endpoint=%d failed, error=%d\n", 505 ep->edesc->bEndpointAddress, r)); 506 free(p, M_USB); 507 return (r); 508 } 509 *pipe = p; 510 return (USBD_NORMAL_COMPLETION); 511 } 512 513 /* Abort the device control pipe. */ 514 void 515 usbd_kill_pipe(pipe) 516 usbd_pipe_handle pipe; 517 { 518 pipe->methods->close(pipe); 519 pipe->endpoint->refcnt--; 520 free(pipe, M_USB); 521 } 522 523 int 524 usbd_getnewaddr(bus) 525 usbd_bus_handle bus; 526 { 527 int i; 528 529 for (i = 1; i < USB_MAX_DEVICES; i++) 530 if (bus->devices[i] == 0) 531 return (i); 532 return (-1); 533 } 534 535 /* 536 * Called when a new device has been put in the powered state, 537 * but not yet in the addressed state. 538 * Get initial descriptor, set the address, get full descriptor, 539 * and attach a driver. 540 */ 541 usbd_status 542 usbd_new_device(parent, bus, depth, lowspeed, port, up) 543 struct device *parent; 544 usbd_bus_handle bus; 545 int depth; 546 int lowspeed; 547 int port; 548 struct usbd_port *up; 549 { 550 usbd_device_handle dev; 551 usb_device_descriptor_t *d; 552 usbd_status r; 553 struct usb_attach_arg uaa; 554 int addr; 555 int found, i, confi; 556 557 DPRINTF(("usbd_new_device bus=%p depth=%d lowspeed=%d\n", 558 bus, depth, lowspeed)); 559 addr = usbd_getnewaddr(bus); 560 if (addr < 0) { 561 printf("%s: No free USB addresses, new device ignored.\n", 562 bus->bdev.dv_xname); 563 return (USBD_NO_ADDR); 564 } 565 566 dev = malloc(sizeof *dev, M_USB, M_NOWAIT); 567 if (dev == 0) 568 return (USBD_NOMEM); 569 memset(dev, 0, sizeof(*dev)); 570 571 dev->bus = bus; 572 573 /* Set up default endpoint handle. */ 574 dev->def_ep.edesc = &dev->def_ep_desc; 575 dev->def_ep.state = USBD_ENDPOINT_ACTIVE; 576 dev->def_ep.refcnt = 0; 577 dev->def_ep.toggle = 0; /* XXX */ 578 579 /* Set up default endpoint descriptor. */ 580 dev->def_ep_desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 581 dev->def_ep_desc.bDescriptorType = UDESC_ENDPOINT; 582 dev->def_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 583 dev->def_ep_desc.bmAttributes = UE_CONTROL; 584 USETW(dev->def_ep_desc.wMaxPacketSize, USB_MAX_IPACKET); 585 dev->def_ep_desc.bInterval = 0; 586 587 dev->state = USBD_DEVICE_DEFAULT; 588 dev->quirks = &usbd_no_quirk; 589 dev->address = USB_START_ADDR; 590 dev->ddesc.bMaxPacketSize = 0; 591 dev->lowspeed = lowspeed != 0; 592 dev->depth = depth; 593 dev->powersrc = up; 594 595 /* Establish the the default pipe. */ 596 r = usbd_setup_pipe(dev, 0, &dev->def_ep, &dev->default_pipe); 597 if (r != USBD_NORMAL_COMPLETION) 598 goto bad1; 599 600 up->device = dev; 601 d = &dev->ddesc; 602 /* Get the first 8 bytes of the device descriptor. */ 603 r = usbd_get_desc(dev, UDESC_DEVICE, 0, USB_MAX_IPACKET, d); 604 if (r != USBD_NORMAL_COMPLETION) { 605 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting first desc failed\n", addr)); 606 goto bad; 607 } 608 609 DPRINTF(("usbd_new_device: adding unit addr=%d, rev=%02x, class=%d, subclass=%d, protocol=%d, maxpacket=%d, ls=%d\n", 610 addr, UGETW(d->bcdUSB), d->bDeviceClass, d->bDeviceSubClass, 611 d->bDeviceProtocol, d->bMaxPacketSize, dev->lowspeed)); 612 613 USETW(dev->def_ep_desc.wMaxPacketSize, d->bMaxPacketSize); 614 615 /* Get the full device descriptor. */ 616 r = usbd_get_device_desc(dev, d); 617 if (r != USBD_NORMAL_COMPLETION) { 618 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting full desc failed\n", addr)); 619 goto bad; 620 } 621 622 /* Figure out what's wrong with this device. */ 623 dev->quirks = usbd_find_quirk(d); 624 625 /* Set the address */ 626 r = usbd_set_address(dev, addr); 627 if (r != USBD_NORMAL_COMPLETION) { 628 DPRINTFN(-1,("usb_new_device: set address %d failed\n",addr)); 629 r = USBD_SET_ADDR_FAILED; 630 goto bad; 631 } 632 dev->address = addr; /* New device address now */ 633 dev->state = USBD_DEVICE_ADDRESSED; 634 bus->devices[addr] = dev; 635 636 /* Assume 100mA bus powered for now. Changed when configured. */ 637 dev->power = USB_MIN_POWER; 638 dev->self_powered = 0; 639 640 DPRINTF(("usbd_new_device: new dev (addr %d), dev=%p, parent=%p\n", 641 addr, dev, parent)); 642 643 uaa.device = dev; 644 uaa.iface = 0; 645 uaa.usegeneric = 0; 646 uaa.port = port; 647 /* First try with device specific drivers. */ 648 if (config_found_sm(parent, &uaa, usbd_print, usbd_submatch) != 0) 649 return (USBD_NORMAL_COMPLETION); 650 651 DPRINTF(("usbd_new_device: no device driver found\n")); 652 /* Next try with interface drivers. */ 653 /* XXX should we try all configurations? */ 654 655 for (confi = 0; confi < d->bNumConfigurations; confi++) { 656 r = usbd_set_config_no(dev, confi); 657 if (r != USBD_NORMAL_COMPLETION) { 658 printf("%s: set config at addr %d failed, error=%d\n", 659 parent->dv_xname, addr, r); 660 goto bad; 661 } 662 for (found = i = 0; i < dev->cdesc->bNumInterface; i++) { 663 uaa.iface = &dev->ifaces[i]; 664 if (config_found_sm(parent, &uaa, usbd_print, 665 usbd_submatch)) 666 found++; 667 } 668 if (found != 0) 669 return (USBD_NORMAL_COMPLETION); 670 } 671 /* No interfaces were attach in any of the configurations. */ 672 if (d->bNumConfigurations > 0) 673 usbd_set_config_no(dev, 0); 674 675 DPRINTF(("usbd_new_device: no interface drivers found\n")); 676 677 /* Finally try the generic driver. */ 678 uaa.iface = 0; 679 uaa.usegeneric = 1; 680 if (config_found_sm(parent, &uaa, usbd_print, usbd_submatch) != 0) 681 return (USBD_NORMAL_COMPLETION); 682 683 DPRINTF(("usbd_new_device: generic attach failed\n")); 684 685 return (USBD_NORMAL_COMPLETION); 686 687 bad: 688 usbd_kill_pipe(dev->default_pipe); 689 bad1: 690 up->device = 0; 691 bus->devices[addr] = 0; 692 free(dev, M_USB); 693 return (r); 694 } 695 696 int 697 usbd_print(aux, pnp) 698 void *aux; 699 const char *pnp; 700 { 701 struct usb_attach_arg *uaa = aux; 702 char devinfo[1024]; 703 704 DPRINTFN(15, ("usbd_print dev=%p\n", uaa->device)); 705 if (pnp) { 706 if (!uaa->usegeneric) 707 return (QUIET); 708 usbd_devinfo(uaa->device, 1, devinfo); 709 printf("%s at %s", devinfo, pnp); 710 } 711 if (uaa->port != 0) 712 printf(" port %d", uaa->port); 713 return (UNCONF); 714 } 715 716 int 717 usbd_submatch(parent, cf, aux) 718 struct device *parent; 719 struct cfdata *cf; 720 void *aux; 721 { 722 struct usb_attach_arg *uaa = aux; 723 724 if (uaa->port != 0 && 725 cf->uhubcf_port != UHUB_UNK_PORT && 726 cf->uhubcf_port != uaa->port) 727 return 0; 728 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 729 } 730
Indexes created Mon Sep 22 13:09:51 GMT 2025