usb_subr.c revision 1.9
1 /* $NetBSD: usb_subr.c,v 1.9 1998/11/25 22:32:05 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (augustss (at) carlstedt.se) at 9 * Carlstedt Research & Technology. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/kernel.h> 43 #include <sys/malloc.h> 44 #include <sys/device.h> 45 #include <sys/proc.h> 46 #include <sys/select.h> 47 48 #include <dev/usb/usb.h> 49 50 #include <dev/usb/usbdi.h> 51 #include <dev/usb/usbdi_util.h> 52 #include <dev/usb/usbdivar.h> 53 #include <dev/usb/usbdevs.h> 54 #include <dev/usb/usb_quirks.h> 55 56 #include "opt_usbverbose.h" 57 58 #ifdef USB_DEBUG 59 #define DPRINTF(x) if (usbdebug) printf x 60 #define DPRINTFN(n,x) if (usbdebug>(n)) printf x 61 extern int usbdebug; 62 #else 63 #define DPRINTF(x) 64 #define DPRINTFN(n,x) 65 #endif 66 67 static usbd_status usbd_set_config __P((usbd_device_handle, int)); 68 char *usbd_get_string __P((usbd_device_handle, int, char *)); 69 usbd_status usbd_get_desc __P((usbd_device_handle dev, int type, 70 int index, int len, void *desc)); 71 int usbd_getnewaddr __P((usbd_bus_handle bus)); 72 int usbd_print __P((void *aux, const char *pnp)); 73 int usbd_submatch __P((struct device *, struct cfdata *cf, void *)); 74 usb_interface_descriptor_t *usbd_find_idesc __P((usb_config_descriptor_t *cd, 75 int ino, int ano)); 76 usbd_status usbd_fill_iface_data __P((usbd_device_handle dev, int i, int a)); 77 void usbd_free_iface_data __P((usbd_device_handle dev, int ifcno)); 78 void usbd_kill_pipe __P((usbd_pipe_handle)); 79 80 #ifdef USBVERBOSE 81 typedef u_int16_t usb_vendor_id_t; 82 typedef u_int16_t usb_product_id_t; 83 84 /* 85 * Descriptions of of known vendors and devices ("products"). 86 */ 87 struct usb_knowndev { 88 usb_vendor_id_t vendor; 89 usb_product_id_t product; 90 int flags; 91 char *vendorname, *productname; 92 }; 93 #define USB_KNOWNDEV_NOPROD 0x01 /* match on vendor only */ 94 95 #include <dev/usb/usbdevs_data.h> 96 #endif /* USBVERBOSE */ 97 98 99 char * 100 usbd_get_string(dev, si, buf) 101 usbd_device_handle dev; 102 int si; 103 char *buf; 104 { 105 int swap = dev->quirks->uq_flags & UQ_SWAP_UNICODE; 106 usb_device_request_t req; 107 usb_string_descriptor_t us; 108 char *s; 109 int i, n; 110 u_int16_t c; 111 usbd_status r; 112 113 if (si == 0) 114 return 0; 115 req.bmRequestType = UT_READ_DEVICE; 116 req.bRequest = UR_GET_DESCRIPTOR; 117 USETW2(req.wValue, UDESC_STRING, si); 118 USETW(req.wIndex, 0); 119 USETW(req.wLength, 1); /* only size byte first */ 120 r = usbd_do_request(dev, &req, &us); 121 if (r != USBD_NORMAL_COMPLETION) 122 return 0; 123 USETW(req.wLength, us.bLength); /* the whole string */ 124 r = usbd_do_request(dev, &req, &us); 125 if (r != USBD_NORMAL_COMPLETION) 126 return 0; 127 s = buf; 128 n = us.bLength / 2 - 1; 129 for (i = 0; i < n; i++) { 130 c = UGETW(us.bString[i]); 131 /* Convert from Unicode, handle buggy strings. */ 132 if ((c & 0xff00) == 0) 133 *s++ = c; 134 else if ((c & 0x00ff) == 0 && swap) 135 *s++ = c >> 8; 136 else 137 *s++ = '?'; 138 } 139 *s++ = 0; 140 return buf; 141 } 142 143 void 144 usbd_devinfo_vp(dev, v, p) 145 usbd_device_handle dev; 146 char *v, *p; 147 { 148 usb_device_descriptor_t *udd = &dev->ddesc; 149 char *vendor = 0, *product = 0; 150 #ifdef USBVERBOSE 151 struct usb_knowndev *kdp; 152 #endif 153 154 vendor = usbd_get_string(dev, udd->iManufacturer, v); 155 product = usbd_get_string(dev, udd->iProduct, p); 156 #ifdef USBVERBOSE 157 if (!vendor) { 158 for(kdp = usb_knowndevs; 159 kdp->vendorname != NULL; 160 kdp++) { 161 if (kdp->vendor == UGETW(udd->idVendor) && 162 (kdp->product == UGETW(udd->idProduct) || 163 (kdp->flags & USB_KNOWNDEV_NOPROD) != 0)) 164 break; 165 } 166 if (kdp->vendorname == NULL) 167 vendor = product = NULL; 168 else { 169 vendor = kdp->vendorname; 170 product = (kdp->flags & USB_KNOWNDEV_NOPROD) == 0 ? 171 kdp->productname : NULL; 172 } 173 } 174 #endif 175 if (vendor) 176 strcpy(v, vendor); 177 else 178 sprintf(v, "vendor 0x%04x", UGETW(udd->idVendor)); 179 if (product) 180 strcpy(p, product); 181 else 182 sprintf(p, "product 0x%04x", UGETW(udd->idProduct)); 183 } 184 185 int 186 usbd_printBCD(cp, bcd) 187 char *cp; 188 int bcd; 189 { 190 return (sprintf(cp, "%x.%02x", bcd >> 8, bcd & 0xff)); 191 } 192 193 void 194 usbd_devinfo(dev, showclass, cp) 195 usbd_device_handle dev; 196 int showclass; 197 char *cp; 198 { 199 usb_device_descriptor_t *udd = &dev->ddesc; 200 char vendor[USB_MAX_STRING_LEN]; 201 char product[USB_MAX_STRING_LEN]; 202 int bcdDevice, bcdUSB; 203 204 usbd_devinfo_vp(dev, vendor, product); 205 cp += sprintf(cp, "%s", vendor); 206 cp += sprintf(cp, " %s", product); 207 if (showclass) 208 cp += sprintf(cp, " (class %d/%d)", 209 udd->bDeviceClass, udd->bDeviceSubClass); 210 bcdUSB = UGETW(udd->bcdUSB); 211 bcdDevice = UGETW(udd->bcdDevice); 212 cp += sprintf(cp, " (rev "); 213 cp += usbd_printBCD(cp, bcdUSB); 214 *cp++ = '/'; 215 cp += usbd_printBCD(cp, bcdDevice); 216 *cp++ = ')'; 217 cp += sprintf(cp, " (addr %d)", dev->address); 218 } 219 220 /* Delay for a certain number of ms */ 221 void 222 usbd_delay_ms(bus, ms) 223 usbd_bus_handle bus; 224 int ms; 225 { 226 /* Wait at least two clock ticks so we know the time has passed. */ 227 if (bus->use_polling) 228 delay((ms+1) * 1000); 229 else 230 tsleep(&ms, PRIBIO, "usbdly", (ms*hz+999)/1000 + 1); 231 } 232 233 usbd_status 234 usbd_reset_port(dev, port, ps) 235 usbd_device_handle dev; 236 int port; 237 usb_port_status_t *ps; 238 { 239 usb_device_request_t req; 240 usbd_status r; 241 int n; 242 243 req.bmRequestType = UT_WRITE_CLASS_OTHER; 244 req.bRequest = UR_SET_FEATURE; 245 USETW(req.wValue, UHF_PORT_RESET); 246 USETW(req.wIndex, port); 247 USETW(req.wLength, 0); 248 r = usbd_do_request(dev, &req, 0); 249 DPRINTFN(1,("usbd_reset_port: port %d reset done, error=%d\n", 250 port, r)); 251 if (r != USBD_NORMAL_COMPLETION) 252 return (r); 253 n = 10; 254 do { 255 /* Wait for device to recover from reset. */ 256 usbd_delay_ms(dev->bus, USB_PORT_RESET_DELAY); 257 r = usbd_get_port_status(dev, port, ps); 258 if (r != USBD_NORMAL_COMPLETION) { 259 DPRINTF(("usbd_reset_port: get status failed %d\n",r)); 260 return (r); 261 } 262 } while ((UGETW(ps->wPortChange) & UPS_C_PORT_RESET) == 0 && --n > 0); 263 if (n == 0) { 264 printf("usbd_reset_port: timeout\n"); 265 return (USBD_IOERROR); 266 } 267 r = usbd_clear_port_feature(dev, port, UHF_C_PORT_RESET); 268 #ifdef USB_DEBUG 269 if (r != USBD_NORMAL_COMPLETION) 270 DPRINTF(("usbd_reset_port: clear port feature failed %d\n",r)); 271 #endif 272 return (r); 273 } 274 275 usb_interface_descriptor_t * 276 usbd_find_idesc(cd, ino, ano) 277 usb_config_descriptor_t *cd; 278 int ino; 279 int ano; 280 { 281 char *p = (char *)cd; 282 char *end = p + UGETW(cd->wTotalLength); 283 usb_interface_descriptor_t *d; 284 285 for (; p < end; p += d->bLength) { 286 d = (usb_interface_descriptor_t *)p; 287 if (p + d->bLength <= end && 288 d->bDescriptorType == UDESC_INTERFACE && 289 d->bInterfaceNumber == ino && d->bAlternateSetting == ano) 290 return (d); 291 } 292 return (0); 293 } 294 295 usbd_status 296 usbd_fill_iface_data(dev, ino, ano) 297 usbd_device_handle dev; 298 int ino; 299 int ano; 300 { 301 usbd_interface_handle ifc = &dev->ifaces[ino]; 302 usb_endpoint_descriptor_t *ed; 303 char *p, *end; 304 int endpt, nendpt; 305 usbd_status r; 306 307 DPRINTFN(5,("usbd_fill_iface_data: ino=%d ano=%d\n", ino, ano)); 308 ifc->device = dev; 309 ifc->state = USBD_INTERFACE_ACTIVE; 310 ifc->idesc = usbd_find_idesc(dev->cdesc, ino, ano); 311 if (ifc->idesc == 0) 312 return (USBD_INVAL); 313 nendpt = ifc->idesc->bNumEndpoints; 314 DPRINTFN(10,("usbd_fill_iface_data: found idesc n=%d\n", nendpt)); 315 if (nendpt != 0) { 316 ifc->endpoints = malloc(nendpt * sizeof(struct usbd_endpoint), 317 M_USB, M_NOWAIT); 318 if (ifc->endpoints == 0) 319 return (USBD_NOMEM); 320 } else 321 ifc->endpoints = 0; 322 ifc->priv = 0; 323 p = (char *)ifc->idesc + ifc->idesc->bLength; 324 end = (char *)dev->cdesc + UGETW(dev->cdesc->wTotalLength); 325 for (endpt = 0; endpt < nendpt; endpt++) { 326 DPRINTFN(10,("usbd_fill_iface_data: endpt=%d\n", endpt)); 327 for (; p < end; p += ed->bLength) { 328 ed = (usb_endpoint_descriptor_t *)p; 329 DPRINTFN(10,("usbd_fill_iface_data: p=%p end=%p len=%d type=%d\n", 330 p, end, ed->bLength, ed->bDescriptorType)); 331 if (p + ed->bLength <= end && 332 ed->bDescriptorType == UDESC_ENDPOINT) 333 goto found; 334 if (ed->bDescriptorType == UDESC_INTERFACE) 335 break; 336 } 337 r = USBD_INVAL; 338 goto bad; 339 found: 340 ifc->endpoints[endpt].edesc = ed; 341 ifc->endpoints[endpt].state = USBD_ENDPOINT_ACTIVE; 342 ifc->endpoints[endpt].refcnt = 0; 343 ifc->endpoints[endpt].toggle = 0; 344 } 345 LIST_INIT(&ifc->pipes); 346 return (USBD_NORMAL_COMPLETION); 347 bad: 348 free(ifc->endpoints, M_USB); 349 return (r); 350 } 351 352 void 353 usbd_free_iface_data(dev, ifcno) 354 usbd_device_handle dev; 355 int ifcno; 356 { 357 usbd_interface_handle ifc = &dev->ifaces[ifcno]; 358 if (ifc->endpoints) 359 free(ifc->endpoints, M_USB); 360 } 361 362 static usbd_status 363 usbd_set_config(dev, conf) 364 usbd_device_handle dev; 365 int conf; 366 { 367 usb_device_request_t req; 368 369 req.bmRequestType = UT_WRITE_DEVICE; 370 req.bRequest = UR_SET_CONFIG; 371 USETW(req.wValue, conf); 372 USETW(req.wIndex, 0); 373 USETW(req.wLength, 0); 374 return (usbd_do_request(dev, &req, 0)); 375 } 376 377 usbd_status 378 usbd_set_config_no(dev, no, msg) 379 usbd_device_handle dev; 380 int no; 381 int msg; 382 { 383 usb_status_t ds; 384 usb_hub_status_t hs; 385 usb_config_descriptor_t cd, *cdp; 386 usbd_status r; 387 int ifcno, nifc, len, selfpowered, power; 388 389 DPRINTFN(5, ("usbd_set_config_no: dev=%p no=%d\n", dev, no)); 390 391 /* XXX check that all interfaces are idle */ 392 if (dev->config != 0) { 393 DPRINTF(("usbd_set_config_no: free old config\n")); 394 /* Free all configuration data structures. */ 395 nifc = dev->cdesc->bNumInterface; 396 for (ifcno = 0; ifcno < nifc; ifcno++) 397 usbd_free_iface_data(dev, ifcno); 398 free(dev->ifaces, M_USB); 399 free(dev->cdesc, M_USB); 400 dev->ifaces = 0; 401 dev->cdesc = 0; 402 dev->config = 0; 403 dev->state = USBD_DEVICE_ADDRESSED; 404 } 405 406 /* Figure out what config number to use. */ 407 r = usbd_get_config_desc(dev, no, &cd); 408 if (r != USBD_NORMAL_COMPLETION) 409 return (r); 410 len = UGETW(cd.wTotalLength); 411 cdp = malloc(len, M_USB, M_NOWAIT); 412 if (cdp == 0) 413 return (USBD_NOMEM); 414 r = usbd_get_desc(dev, UDESC_CONFIG, no, len, cdp); 415 if (r != USBD_NORMAL_COMPLETION) 416 goto bad; 417 selfpowered = 0; 418 if (cdp->bmAttributes & UC_SELF_POWERED) { 419 /* May be self powered. */ 420 if (cdp->bmAttributes & UC_BUS_POWERED) { 421 /* Must ask device. */ 422 if (dev->quirks->uq_flags & UQ_HUB_POWER) { 423 /* Buggy hub, use hub descriptor. */ 424 r = usbd_get_hub_status(dev, &hs); 425 if (r == USBD_NORMAL_COMPLETION && 426 !(UGETW(hs.wHubStatus) & UHS_LOCAL_POWER)) 427 selfpowered = 1; 428 } else { 429 r = usbd_get_device_status(dev, &ds); 430 if (r == USBD_NORMAL_COMPLETION && 431 (UGETW(ds.wStatus) & UDS_SELF_POWERED)) 432 selfpowered = 1; 433 } 434 DPRINTF(("usbd_set_config_no: status=0x%04x, error=%d\n", 435 UGETW(ds.wStatus), r)); 436 } else 437 selfpowered = 1; 438 } 439 DPRINTF(("usbd_set_config_no: (addr %d) attr=0x%02x, selfpowered=%d, power=%d, powerquirk=%x\n", 440 dev->address, cdp->bmAttributes, 441 selfpowered, cdp->bMaxPower * 2, 442 dev->quirks->uq_flags & UQ_HUB_POWER)); 443 #ifdef USB_DEBUG 444 if (!dev->powersrc) { 445 printf("usbd_set_config_no: No power source?\n"); 446 return (EIO); 447 } 448 #endif 449 power = cdp->bMaxPower * 2; 450 if (power > dev->powersrc->power) { 451 /* XXX print nicer message. */ 452 if (msg) 453 printf("%s: device addr %d (config %d) exceeds power budget, %d mA > %d mA\n", 454 dev->bus->bdev.dv_xname, dev->address, 455 cdp->bConfigurationValue, 456 power, dev->powersrc->power); 457 r = USBD_NO_POWER; 458 goto bad; 459 } 460 dev->power = power; 461 dev->self_powered = selfpowered; 462 463 r = usbd_set_config(dev, cdp->bConfigurationValue); 464 if (r != USBD_NORMAL_COMPLETION) { 465 DPRINTF(("usbd_set_config_no: setting config=%d failed, error=%d\n", 466 cdp->bConfigurationValue, r)); 467 goto bad; 468 } 469 DPRINTF(("usbd_set_config_no: setting new config %d\n", 470 cdp->bConfigurationValue)); 471 nifc = cdp->bNumInterface; 472 dev->ifaces = malloc(nifc * sizeof(struct usbd_interface), 473 M_USB, M_NOWAIT); 474 if (dev->ifaces == 0) { 475 r = USBD_NOMEM; 476 goto bad; 477 } 478 DPRINTFN(5,("usbd_set_config_no: dev=%p cdesc=%p\n", dev, cdp)); 479 dev->cdesc = cdp; 480 dev->config = cdp->bConfigurationValue; 481 dev->state = USBD_DEVICE_CONFIGURED; 482 for (ifcno = 0; ifcno < nifc; ifcno++) { 483 r = usbd_fill_iface_data(dev, ifcno, 0); 484 if (r != USBD_NORMAL_COMPLETION) { 485 while (--ifcno >= 0) 486 usbd_free_iface_data(dev, ifcno); 487 goto bad; 488 } 489 } 490 491 return (USBD_NORMAL_COMPLETION); 492 493 bad: 494 free(cdp, M_USB); 495 return (r); 496 } 497 498 /* XXX add function for alternate settings */ 499 500 usbd_status 501 usbd_setup_pipe(dev, iface, ep, pipe) 502 usbd_device_handle dev; 503 usbd_interface_handle iface; 504 struct usbd_endpoint *ep; 505 usbd_pipe_handle *pipe; 506 { 507 usbd_pipe_handle p; 508 usbd_status r; 509 510 DPRINTFN(1,("usbd_setup_pipe: dev=%p iface=%p ep=%p pipe=%p\n", 511 dev, iface, ep, pipe)); 512 p = malloc(dev->bus->pipe_size, M_USB, M_NOWAIT); 513 if (p == 0) 514 return (USBD_NOMEM); 515 p->device = dev; 516 p->iface = iface; 517 p->state = USBD_PIPE_ACTIVE; 518 p->endpoint = ep; 519 ep->refcnt++; 520 p->refcnt = 1; 521 p->intrreqh = 0; 522 p->running = 0; 523 SIMPLEQ_INIT(&p->queue); 524 r = dev->bus->open_pipe(p); 525 if (r != USBD_NORMAL_COMPLETION) { 526 DPRINTF(("usbd_setup_pipe: endpoint=%d failed, error=%d\n", 527 ep->edesc->bEndpointAddress, r)); 528 free(p, M_USB); 529 return (r); 530 } 531 *pipe = p; 532 return (USBD_NORMAL_COMPLETION); 533 } 534 535 /* Abort the device control pipe. */ 536 void 537 usbd_kill_pipe(pipe) 538 usbd_pipe_handle pipe; 539 { 540 pipe->methods->close(pipe); 541 pipe->endpoint->refcnt--; 542 free(pipe, M_USB); 543 } 544 545 int 546 usbd_getnewaddr(bus) 547 usbd_bus_handle bus; 548 { 549 int i; 550 551 for (i = 1; i < USB_MAX_DEVICES; i++) 552 if (bus->devices[i] == 0) 553 return (i); 554 return (-1); 555 } 556 557 /* 558 * Called when a new device has been put in the powered state, 559 * but not yet in the addressed state. 560 * Get initial descriptor, set the address, get full descriptor, 561 * and attach a driver. 562 */ 563 usbd_status 564 usbd_new_device(parent, bus, depth, lowspeed, port, up) 565 struct device *parent; 566 usbd_bus_handle bus; 567 int depth; 568 int lowspeed; 569 int port; 570 struct usbd_port *up; 571 { 572 usbd_device_handle dev; 573 usb_device_descriptor_t *d; 574 usbd_status r; 575 struct usb_attach_arg uaa; 576 int addr; 577 int found, i, confi; 578 579 DPRINTF(("usbd_new_device bus=%p depth=%d lowspeed=%d\n", 580 bus, depth, lowspeed)); 581 addr = usbd_getnewaddr(bus); 582 if (addr < 0) { 583 printf("%s: No free USB addresses, new device ignored.\n", 584 bus->bdev.dv_xname); 585 return (USBD_NO_ADDR); 586 } 587 588 dev = malloc(sizeof *dev, M_USB, M_NOWAIT); 589 if (dev == 0) 590 return (USBD_NOMEM); 591 memset(dev, 0, sizeof(*dev)); 592 593 dev->bus = bus; 594 595 /* Set up default endpoint handle. */ 596 dev->def_ep.edesc = &dev->def_ep_desc; 597 dev->def_ep.state = USBD_ENDPOINT_ACTIVE; 598 dev->def_ep.refcnt = 0; 599 dev->def_ep.toggle = 0; /* XXX */ 600 601 /* Set up default endpoint descriptor. */ 602 dev->def_ep_desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 603 dev->def_ep_desc.bDescriptorType = UDESC_ENDPOINT; 604 dev->def_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 605 dev->def_ep_desc.bmAttributes = UE_CONTROL; 606 USETW(dev->def_ep_desc.wMaxPacketSize, USB_MAX_IPACKET); 607 dev->def_ep_desc.bInterval = 0; 608 609 dev->state = USBD_DEVICE_DEFAULT; 610 dev->quirks = &usbd_no_quirk; 611 dev->address = USB_START_ADDR; 612 dev->ddesc.bMaxPacketSize = 0; 613 dev->lowspeed = lowspeed != 0; 614 dev->depth = depth; 615 dev->powersrc = up; 616 617 /* Establish the the default pipe. */ 618 r = usbd_setup_pipe(dev, 0, &dev->def_ep, &dev->default_pipe); 619 if (r != USBD_NORMAL_COMPLETION) 620 goto bad1; 621 622 up->device = dev; 623 d = &dev->ddesc; 624 /* Try a few times in case the device is slow (i.e. outside specs.) */ 625 for (i = 0; i < 5; i++) { 626 /* Get the first 8 bytes of the device descriptor. */ 627 r = usbd_get_desc(dev, UDESC_DEVICE, 0, USB_MAX_IPACKET, d); 628 if (r == USBD_NORMAL_COMPLETION) 629 break; 630 usbd_delay_ms(dev->bus, 200); 631 } 632 if (r != USBD_NORMAL_COMPLETION) { 633 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting first desc failed\n", 634 addr)); 635 goto bad; 636 } 637 638 DPRINTF(("usbd_new_device: adding unit addr=%d, rev=%02x, class=%d, subclass=%d, protocol=%d, maxpacket=%d, ls=%d\n", 639 addr, UGETW(d->bcdUSB), d->bDeviceClass, d->bDeviceSubClass, 640 d->bDeviceProtocol, d->bMaxPacketSize, dev->lowspeed)); 641 642 USETW(dev->def_ep_desc.wMaxPacketSize, d->bMaxPacketSize); 643 644 /* Get the full device descriptor. */ 645 r = usbd_get_device_desc(dev, d); 646 if (r != USBD_NORMAL_COMPLETION) { 647 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting full desc failed\n", addr)); 648 goto bad; 649 } 650 651 /* Figure out what's wrong with this device. */ 652 dev->quirks = usbd_find_quirk(d); 653 654 /* Set the address */ 655 r = usbd_set_address(dev, addr); 656 if (r != USBD_NORMAL_COMPLETION) { 657 DPRINTFN(-1,("usb_new_device: set address %d failed\n",addr)); 658 r = USBD_SET_ADDR_FAILED; 659 goto bad; 660 } 661 dev->address = addr; /* New device address now */ 662 dev->state = USBD_DEVICE_ADDRESSED; 663 bus->devices[addr] = dev; 664 665 /* Assume 100mA bus powered for now. Changed when configured. */ 666 dev->power = USB_MIN_POWER; 667 dev->self_powered = 0; 668 669 DPRINTF(("usbd_new_device: new dev (addr %d), dev=%p, parent=%p\n", 670 addr, dev, parent)); 671 672 uaa.device = dev; 673 uaa.iface = 0; 674 uaa.usegeneric = 0; 675 uaa.port = port; 676 /* First try with device specific drivers. */ 677 if (config_found_sm(parent, &uaa, usbd_print, usbd_submatch) != 0) 678 return (USBD_NORMAL_COMPLETION); 679 680 DPRINTF(("usbd_new_device: no device driver found\n")); 681 682 /* Next try with interface drivers. */ 683 for (confi = 0; confi < d->bNumConfigurations; confi++) { 684 r = usbd_set_config_no(dev, confi, 1); 685 if (r != USBD_NORMAL_COMPLETION) { 686 printf("%s: set config at addr %d failed, error=%d\n", 687 parent->dv_xname, addr, r); 688 goto bad; 689 } 690 for (found = i = 0; i < dev->cdesc->bNumInterface; i++) { 691 uaa.iface = &dev->ifaces[i]; 692 if (config_found_sm(parent, &uaa, usbd_print, 693 usbd_submatch)) 694 found++; 695 } 696 if (found != 0) 697 return (USBD_NORMAL_COMPLETION); 698 } 699 /* No interfaces were attached in any of the configurations. */ 700 if (d->bNumConfigurations > 0) 701 usbd_set_config_no(dev, 0, 0); 702 703 DPRINTF(("usbd_new_device: no interface drivers found\n")); 704 705 /* Finally try the generic driver. */ 706 uaa.iface = 0; 707 uaa.usegeneric = 1; 708 if (config_found_sm(parent, &uaa, usbd_print, usbd_submatch) != 0) 709 return (USBD_NORMAL_COMPLETION); 710 711 DPRINTF(("usbd_new_device: generic attach failed\n")); 712 713 return (USBD_NORMAL_COMPLETION); 714 715 bad: 716 usbd_kill_pipe(dev->default_pipe); 717 bad1: 718 up->device = 0; 719 bus->devices[addr] = 0; 720 free(dev, M_USB); 721 return (r); 722 } 723 724 int 725 usbd_print(aux, pnp) 726 void *aux; 727 const char *pnp; 728 { 729 struct usb_attach_arg *uaa = aux; 730 char devinfo[1024]; 731 732 DPRINTFN(15, ("usbd_print dev=%p\n", uaa->device)); 733 if (pnp) { 734 if (!uaa->usegeneric) 735 return (QUIET); 736 usbd_devinfo(uaa->device, 1, devinfo); 737 printf("%s at %s", devinfo, pnp); 738 } 739 if (uaa->port != 0) 740 printf(" port %d", uaa->port); 741 return (UNCONF); 742 } 743 744 int 745 usbd_submatch(parent, cf, aux) 746 struct device *parent; 747 struct cfdata *cf; 748 void *aux; 749 { 750 struct usb_attach_arg *uaa = aux; 751 752 if (uaa->port != 0 && 753 cf->uhubcf_port != UHUB_UNK_PORT && 754 cf->uhubcf_port != uaa->port) 755 return 0; 756 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 757 } 758
Indexes created Fri Sep 26 20:09:58 GMT 2025