1 /* $NetBSD: usb_subr.c,v 1.91 2001/11/13 06:24:56 lukem 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 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@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 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 #include <sys/cdefs.h> 42 __KERNEL_RCSID(0, "$NetBSD: usb_subr.c,v 1.91 2001/11/13 06:24:56 lukem Exp $"); 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/kernel.h> 47 #include <sys/malloc.h> 48 #if defined(__NetBSD__) || defined(__OpenBSD__) 49 #include <sys/device.h> 50 #include <sys/select.h> 51 #elif defined(__FreeBSD__) 52 #include <sys/module.h> 53 #include <sys/bus.h> 54 #endif 55 #include <sys/proc.h> 56 57 #include <machine/bus.h> 58 59 #include <dev/usb/usb.h> 60 61 #include <dev/usb/usbdi.h> 62 #include <dev/usb/usbdi_util.h> 63 #include <dev/usb/usbdivar.h> 64 #include <dev/usb/usbdevs.h> 65 #include <dev/usb/usb_quirks.h> 66 67 #if defined(__FreeBSD__) 68 #include <machine/clock.h> 69 #define delay(d) DELAY(d) 70 #endif 71 72 #ifdef USB_DEBUG 73 #define DPRINTF(x) if (usbdebug) logprintf x 74 #define DPRINTFN(n,x) if (usbdebug>(n)) logprintf x 75 extern int usbdebug; 76 #else 77 #define DPRINTF(x) 78 #define DPRINTFN(n,x) 79 #endif 80 81 Static usbd_status usbd_set_config(usbd_device_handle, int); 82 Static void usbd_devinfo_vp(usbd_device_handle, char *, char *, int); 83 Static char *usbd_get_string(usbd_device_handle, int, char *); 84 Static int usbd_getnewaddr(usbd_bus_handle bus); 85 #if defined(__NetBSD__) 86 Static int usbd_print(void *aux, const char *pnp); 87 Static int usbd_submatch(device_ptr_t, struct cfdata *cf, void *); 88 #elif defined(__OpenBSD__) 89 Static int usbd_print(void *aux, const char *pnp); 90 Static int usbd_submatch(device_ptr_t, void *, void *); 91 #endif 92 Static void usbd_free_iface_data(usbd_device_handle dev, int ifcno); 93 Static void usbd_kill_pipe(usbd_pipe_handle); 94 Static usbd_status usbd_probe_and_attach(device_ptr_t parent, 95 usbd_device_handle dev, int port, int addr); 96 97 Static u_int32_t usb_cookie_no = 0; 98 99 #ifdef USBVERBOSE 100 typedef u_int16_t usb_vendor_id_t; 101 typedef u_int16_t usb_product_id_t; 102 103 /* 104 * Descriptions of of known vendors and devices ("products"). 105 */ 106 struct usb_knowndev { 107 usb_vendor_id_t vendor; 108 usb_product_id_t product; 109 int flags; 110 char *vendorname, *productname; 111 }; 112 #define USB_KNOWNDEV_NOPROD 0x01 /* match on vendor only */ 113 114 #include <dev/usb/usbdevs_data.h> 115 #endif /* USBVERBOSE */ 116 117 Static const char * const usbd_error_strs[] = { 118 "NORMAL_COMPLETION", 119 "IN_PROGRESS", 120 "PENDING_REQUESTS", 121 "NOT_STARTED", 122 "INVAL", 123 "NOMEM", 124 "CANCELLED", 125 "BAD_ADDRESS", 126 "IN_USE", 127 "NO_ADDR", 128 "SET_ADDR_FAILED", 129 "NO_POWER", 130 "TOO_DEEP", 131 "IOERROR", 132 "NOT_CONFIGURED", 133 "TIMEOUT", 134 "SHORT_XFER", 135 "STALLED", 136 "INTERRUPTED", 137 "XXX", 138 }; 139 140 const char * 141 usbd_errstr(usbd_status err) 142 { 143 static char buffer[5]; 144 145 if (err < USBD_ERROR_MAX) { 146 return usbd_error_strs[err]; 147 } else { 148 snprintf(buffer, sizeof buffer, "%d", err); 149 return buffer; 150 } 151 } 152 153 usbd_status 154 usbd_get_string_desc(usbd_device_handle dev, int sindex, int langid, 155 usb_string_descriptor_t *sdesc) 156 { 157 usb_device_request_t req; 158 usbd_status err; 159 160 req.bmRequestType = UT_READ_DEVICE; 161 req.bRequest = UR_GET_DESCRIPTOR; 162 USETW2(req.wValue, UDESC_STRING, sindex); 163 USETW(req.wIndex, langid); 164 USETW(req.wLength, 1); /* only size byte first */ 165 err = usbd_do_request(dev, &req, sdesc); 166 if (err) 167 return (err); 168 USETW(req.wLength, sdesc->bLength); /* the whole string */ 169 return (usbd_do_request(dev, &req, sdesc)); 170 } 171 172 char * 173 usbd_get_string(usbd_device_handle dev, int si, char *buf) 174 { 175 int swap = dev->quirks->uq_flags & UQ_SWAP_UNICODE; 176 usb_string_descriptor_t us; 177 char *s; 178 int i, n; 179 u_int16_t c; 180 usbd_status err; 181 182 if (si == 0) 183 return (0); 184 if (dev->quirks->uq_flags & UQ_NO_STRINGS) 185 return (0); 186 if (dev->langid == USBD_NOLANG) { 187 /* Set up default language */ 188 err = usbd_get_string_desc(dev, USB_LANGUAGE_TABLE, 0, &us); 189 if (err || us.bLength < 4) { 190 dev->langid = 0; /* Well, just pick English then */ 191 } else { 192 /* Pick the first language as the default. */ 193 dev->langid = UGETW(us.bString[0]); 194 } 195 } 196 err = usbd_get_string_desc(dev, si, dev->langid, &us); 197 if (err) 198 return (0); 199 s = buf; 200 n = us.bLength / 2 - 1; 201 for (i = 0; i < n; i++) { 202 c = UGETW(us.bString[i]); 203 /* Convert from Unicode, handle buggy strings. */ 204 if ((c & 0xff00) == 0) 205 *s++ = c; 206 else if ((c & 0x00ff) == 0 && swap) 207 *s++ = c >> 8; 208 else 209 *s++ = '?'; 210 } 211 *s++ = 0; 212 return (buf); 213 } 214 215 static void 216 usbd_trim_spaces(char *p) 217 { 218 char *q, *e; 219 220 if (p == NULL) 221 return; 222 q = e = p; 223 while (*q == ' ') /* skip leading spaces */ 224 q++; 225 while ((*p = *q++)) /* copy string */ 226 if (*p++ != ' ') /* remember last non-space */ 227 e = p; 228 *e = 0; /* kill trailing spaces */ 229 } 230 231 void 232 usbd_devinfo_vp(usbd_device_handle dev, char *v, char *p, int usedev) 233 { 234 usb_device_descriptor_t *udd = &dev->ddesc; 235 char *vendor = 0, *product = 0; 236 #ifdef USBVERBOSE 237 const struct usb_knowndev *kdp; 238 #endif 239 240 if (dev == NULL) { 241 v[0] = p[0] = '\0'; 242 return; 243 } 244 245 if (usedev) { 246 vendor = usbd_get_string(dev, udd->iManufacturer, v); 247 usbd_trim_spaces(vendor); 248 product = usbd_get_string(dev, udd->iProduct, p); 249 usbd_trim_spaces(product); 250 } else { 251 vendor = NULL; 252 product = NULL; 253 } 254 #ifdef USBVERBOSE 255 if (vendor == NULL || product == NULL) { 256 for(kdp = usb_knowndevs; 257 kdp->vendorname != NULL; 258 kdp++) { 259 if (kdp->vendor == UGETW(udd->idVendor) && 260 (kdp->product == UGETW(udd->idProduct) || 261 (kdp->flags & USB_KNOWNDEV_NOPROD) != 0)) 262 break; 263 } 264 if (kdp->vendorname != NULL) { 265 if (vendor == NULL) 266 vendor = kdp->vendorname; 267 if (product == NULL) 268 product = (kdp->flags & USB_KNOWNDEV_NOPROD) == 0 ? 269 kdp->productname : NULL; 270 } 271 } 272 #endif 273 if (vendor != NULL && *vendor) 274 strcpy(v, vendor); 275 else 276 sprintf(v, "vendor 0x%04x", UGETW(udd->idVendor)); 277 if (product != NULL && *product) 278 strcpy(p, product); 279 else 280 sprintf(p, "product 0x%04x", UGETW(udd->idProduct)); 281 } 282 283 int 284 usbd_printBCD(char *cp, int bcd) 285 { 286 return (sprintf(cp, "%x.%02x", bcd >> 8, bcd & 0xff)); 287 } 288 289 void 290 usbd_devinfo(usbd_device_handle dev, int showclass, char *cp) 291 { 292 usb_device_descriptor_t *udd = &dev->ddesc; 293 char vendor[USB_MAX_STRING_LEN]; 294 char product[USB_MAX_STRING_LEN]; 295 int bcdDevice, bcdUSB; 296 297 usbd_devinfo_vp(dev, vendor, product, 1); 298 cp += sprintf(cp, "%s %s", vendor, product); 299 if (showclass) 300 cp += sprintf(cp, ", class %d/%d", 301 udd->bDeviceClass, udd->bDeviceSubClass); 302 bcdUSB = UGETW(udd->bcdUSB); 303 bcdDevice = UGETW(udd->bcdDevice); 304 cp += sprintf(cp, ", rev "); 305 cp += usbd_printBCD(cp, bcdUSB); 306 *cp++ = '/'; 307 cp += usbd_printBCD(cp, bcdDevice); 308 cp += sprintf(cp, ", addr %d", dev->address); 309 *cp = 0; 310 } 311 312 /* Delay for a certain number of ms */ 313 void 314 usb_delay_ms(usbd_bus_handle bus, u_int ms) 315 { 316 /* Wait at least two clock ticks so we know the time has passed. */ 317 if (bus->use_polling || cold) 318 delay((ms+1) * 1000); 319 else 320 tsleep(&ms, PRIBIO, "usbdly", (ms*hz+999)/1000 + 1); 321 } 322 323 /* Delay given a device handle. */ 324 void 325 usbd_delay_ms(usbd_device_handle dev, u_int ms) 326 { 327 usb_delay_ms(dev->bus, ms); 328 } 329 330 usbd_status 331 usbd_reset_port(usbd_device_handle dev, int port, usb_port_status_t *ps) 332 { 333 usb_device_request_t req; 334 usbd_status err; 335 int n; 336 337 req.bmRequestType = UT_WRITE_CLASS_OTHER; 338 req.bRequest = UR_SET_FEATURE; 339 USETW(req.wValue, UHF_PORT_RESET); 340 USETW(req.wIndex, port); 341 USETW(req.wLength, 0); 342 err = usbd_do_request(dev, &req, 0); 343 DPRINTFN(1,("usbd_reset_port: port %d reset done, error=%s\n", 344 port, usbd_errstr(err))); 345 if (err) 346 return (err); 347 n = 10; 348 do { 349 /* Wait for device to recover from reset. */ 350 usbd_delay_ms(dev, USB_PORT_RESET_DELAY); 351 err = usbd_get_port_status(dev, port, ps); 352 if (err) { 353 DPRINTF(("usbd_reset_port: get status failed %d\n", 354 err)); 355 return (err); 356 } 357 } while ((UGETW(ps->wPortChange) & UPS_C_PORT_RESET) == 0 && --n > 0); 358 if (n == 0) 359 return (USBD_TIMEOUT); 360 err = usbd_clear_port_feature(dev, port, UHF_C_PORT_RESET); 361 #ifdef USB_DEBUG 362 if (err) 363 DPRINTF(("usbd_reset_port: clear port feature failed %d\n", 364 err)); 365 #endif 366 367 /* Wait for the device to recover from reset. */ 368 usbd_delay_ms(dev, USB_PORT_RESET_RECOVERY); 369 return (err); 370 } 371 372 usb_interface_descriptor_t * 373 usbd_find_idesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx) 374 { 375 char *p = (char *)cd; 376 char *end = p + UGETW(cd->wTotalLength); 377 usb_interface_descriptor_t *d; 378 int curidx, lastidx, curaidx = 0; 379 380 for (curidx = lastidx = -1; p < end; ) { 381 d = (usb_interface_descriptor_t *)p; 382 DPRINTFN(4,("usbd_find_idesc: idx=%d(%d) altidx=%d(%d) len=%d " 383 "type=%d\n", 384 ifaceidx, curidx, altidx, curaidx, 385 d->bLength, d->bDescriptorType)); 386 if (d->bLength == 0) /* bad descriptor */ 387 break; 388 p += d->bLength; 389 if (p <= end && d->bDescriptorType == UDESC_INTERFACE) { 390 if (d->bInterfaceNumber != lastidx) { 391 lastidx = d->bInterfaceNumber; 392 curidx++; 393 curaidx = 0; 394 } else 395 curaidx++; 396 if (ifaceidx == curidx && altidx == curaidx) 397 return (d); 398 } 399 } 400 return (NULL); 401 } 402 403 usb_endpoint_descriptor_t * 404 usbd_find_edesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx, 405 int endptidx) 406 { 407 char *p = (char *)cd; 408 char *end = p + UGETW(cd->wTotalLength); 409 usb_interface_descriptor_t *d; 410 usb_endpoint_descriptor_t *e; 411 int curidx; 412 413 d = usbd_find_idesc(cd, ifaceidx, altidx); 414 if (d == NULL) 415 return (NULL); 416 if (endptidx >= d->bNumEndpoints) /* quick exit */ 417 return (NULL); 418 419 curidx = -1; 420 for (p = (char *)d + d->bLength; p < end; ) { 421 e = (usb_endpoint_descriptor_t *)p; 422 if (e->bLength == 0) /* bad descriptor */ 423 break; 424 p += e->bLength; 425 if (p <= end && e->bDescriptorType == UDESC_INTERFACE) 426 return (NULL); 427 if (p <= end && e->bDescriptorType == UDESC_ENDPOINT) { 428 curidx++; 429 if (curidx == endptidx) 430 return (e); 431 } 432 } 433 return (NULL); 434 } 435 436 usbd_status 437 usbd_fill_iface_data(usbd_device_handle dev, int ifaceidx, int altidx) 438 { 439 usbd_interface_handle ifc = &dev->ifaces[ifaceidx]; 440 usb_interface_descriptor_t *idesc; 441 char *p, *end; 442 int endpt, nendpt; 443 444 DPRINTFN(4,("usbd_fill_iface_data: ifaceidx=%d altidx=%d\n", 445 ifaceidx, altidx)); 446 idesc = usbd_find_idesc(dev->cdesc, ifaceidx, altidx); 447 if (idesc == NULL) 448 return (USBD_INVAL); 449 ifc->device = dev; 450 ifc->idesc = idesc; 451 ifc->index = ifaceidx; 452 ifc->altindex = altidx; 453 nendpt = ifc->idesc->bNumEndpoints; 454 DPRINTFN(4,("usbd_fill_iface_data: found idesc nendpt=%d\n", nendpt)); 455 if (nendpt != 0) { 456 ifc->endpoints = malloc(nendpt * sizeof(struct usbd_endpoint), 457 M_USB, M_NOWAIT); 458 if (ifc->endpoints == NULL) 459 return (USBD_NOMEM); 460 } else 461 ifc->endpoints = NULL; 462 ifc->priv = NULL; 463 p = (char *)ifc->idesc + ifc->idesc->bLength; 464 end = (char *)dev->cdesc + UGETW(dev->cdesc->wTotalLength); 465 #define ed ((usb_endpoint_descriptor_t *)p) 466 for (endpt = 0; endpt < nendpt; endpt++) { 467 DPRINTFN(10,("usbd_fill_iface_data: endpt=%d\n", endpt)); 468 for (; p < end; p += ed->bLength) { 469 DPRINTFN(10,("usbd_fill_iface_data: p=%p end=%p " 470 "len=%d type=%d\n", 471 p, end, ed->bLength, ed->bDescriptorType)); 472 if (p + ed->bLength <= end && ed->bLength != 0 && 473 ed->bDescriptorType == UDESC_ENDPOINT) 474 goto found; 475 if (ed->bLength == 0 || 476 ed->bDescriptorType == UDESC_INTERFACE) 477 break; 478 } 479 /* passed end, or bad desc */ 480 DPRINTF(("usbd_fill_iface_data: bad descriptor(s): %s\n", 481 ed->bLength == 0 ? "0 length" : 482 ed->bDescriptorType == UDESC_INTERFACE ? "iface desc": 483 "out of data")); 484 goto bad; 485 found: 486 ifc->endpoints[endpt].edesc = ed; 487 ifc->endpoints[endpt].refcnt = 0; 488 p += ed->bLength; 489 } 490 #undef ed 491 LIST_INIT(&ifc->pipes); 492 return (USBD_NORMAL_COMPLETION); 493 494 bad: 495 if (ifc->endpoints != NULL) { 496 free(ifc->endpoints, M_USB); 497 ifc->endpoints = NULL; 498 } 499 return (USBD_INVAL); 500 } 501 502 void 503 usbd_free_iface_data(usbd_device_handle dev, int ifcno) 504 { 505 usbd_interface_handle ifc = &dev->ifaces[ifcno]; 506 if (ifc->endpoints) 507 free(ifc->endpoints, M_USB); 508 } 509 510 Static usbd_status 511 usbd_set_config(usbd_device_handle dev, int conf) 512 { 513 usb_device_request_t req; 514 515 req.bmRequestType = UT_WRITE_DEVICE; 516 req.bRequest = UR_SET_CONFIG; 517 USETW(req.wValue, conf); 518 USETW(req.wIndex, 0); 519 USETW(req.wLength, 0); 520 return (usbd_do_request(dev, &req, 0)); 521 } 522 523 usbd_status 524 usbd_set_config_no(usbd_device_handle dev, int no, int msg) 525 { 526 int index; 527 usb_config_descriptor_t cd; 528 usbd_status err; 529 530 if (no == USB_UNCONFIG_NO) 531 return (usbd_set_config_index(dev, USB_UNCONFIG_INDEX, msg)); 532 533 DPRINTFN(5,("usbd_set_config_no: %d\n", no)); 534 /* Figure out what config index to use. */ 535 for (index = 0; index < dev->ddesc.bNumConfigurations; index++) { 536 err = usbd_get_config_desc(dev, index, &cd); 537 if (err) 538 return (err); 539 if (cd.bConfigurationValue == no) 540 return (usbd_set_config_index(dev, index, msg)); 541 } 542 return (USBD_INVAL); 543 } 544 545 usbd_status 546 usbd_set_config_index(usbd_device_handle dev, int index, int msg) 547 { 548 usb_status_t ds; 549 usb_config_descriptor_t cd, *cdp; 550 usbd_status err; 551 int ifcidx, nifc, len, selfpowered, power; 552 553 DPRINTFN(5,("usbd_set_config_index: dev=%p index=%d\n", dev, index)); 554 555 /* XXX check that all interfaces are idle */ 556 if (dev->config != USB_UNCONFIG_NO) { 557 DPRINTF(("usbd_set_config_index: free old config\n")); 558 /* Free all configuration data structures. */ 559 nifc = dev->cdesc->bNumInterface; 560 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 561 usbd_free_iface_data(dev, ifcidx); 562 free(dev->ifaces, M_USB); 563 free(dev->cdesc, M_USB); 564 dev->ifaces = NULL; 565 dev->cdesc = NULL; 566 dev->config = USB_UNCONFIG_NO; 567 } 568 569 if (index == USB_UNCONFIG_INDEX) { 570 /* We are unconfiguring the device, so leave unallocated. */ 571 DPRINTF(("usbd_set_config_index: set config 0\n")); 572 err = usbd_set_config(dev, USB_UNCONFIG_NO); 573 if (err) 574 DPRINTF(("usbd_set_config_index: setting config=0 " 575 "failed, error=%s\n", usbd_errstr(err))); 576 return (err); 577 } 578 579 /* Get the short descriptor. */ 580 err = usbd_get_config_desc(dev, index, &cd); 581 if (err) 582 return (err); 583 len = UGETW(cd.wTotalLength); 584 cdp = malloc(len, M_USB, M_NOWAIT); 585 if (cdp == NULL) 586 return (USBD_NOMEM); 587 /* Get the full descriptor. */ 588 err = usbd_get_desc(dev, UDESC_CONFIG, index, len, cdp); 589 if (err) 590 goto bad; 591 if (cdp->bDescriptorType != UDESC_CONFIG) { 592 DPRINTFN(-1,("usbd_set_config_index: bad desc %d\n", 593 cdp->bDescriptorType)); 594 err = USBD_INVAL; 595 goto bad; 596 } 597 598 /* Figure out if the device is self or bus powered. */ 599 selfpowered = 0; 600 if (!(dev->quirks->uq_flags & UQ_BUS_POWERED) && 601 (cdp->bmAttributes & UC_SELF_POWERED)) { 602 /* May be self powered. */ 603 if (cdp->bmAttributes & UC_BUS_POWERED) { 604 /* Must ask device. */ 605 if (dev->quirks->uq_flags & UQ_POWER_CLAIM) { 606 /* 607 * Hub claims to be self powered, but isn't. 608 * It seems that the power status can be 609 * determined by the hub characteristics. 610 */ 611 usb_hub_descriptor_t hd; 612 usb_device_request_t req; 613 req.bmRequestType = UT_READ_CLASS_DEVICE; 614 req.bRequest = UR_GET_DESCRIPTOR; 615 USETW(req.wValue, 0); 616 USETW(req.wIndex, 0); 617 USETW(req.wLength, USB_HUB_DESCRIPTOR_SIZE); 618 err = usbd_do_request(dev, &req, &hd); 619 if (!err && 620 (UGETW(hd.wHubCharacteristics) & 621 UHD_PWR_INDIVIDUAL)) 622 selfpowered = 1; 623 DPRINTF(("usbd_set_config_index: charac=0x%04x" 624 ", error=%s\n", 625 UGETW(hd.wHubCharacteristics), 626 usbd_errstr(err))); 627 } else { 628 err = usbd_get_device_status(dev, &ds); 629 if (!err && 630 (UGETW(ds.wStatus) & UDS_SELF_POWERED)) 631 selfpowered = 1; 632 DPRINTF(("usbd_set_config_index: status=0x%04x" 633 ", error=%s\n", 634 UGETW(ds.wStatus), usbd_errstr(err))); 635 } 636 } else 637 selfpowered = 1; 638 } 639 DPRINTF(("usbd_set_config_index: (addr %d) cno=%d attr=0x%02x, " 640 "selfpowered=%d, power=%d\n", 641 cdp->bConfigurationValue, dev->address, cdp->bmAttributes, 642 selfpowered, cdp->bMaxPower * 2)); 643 644 /* Check if we have enough power. */ 645 #ifdef USB_DEBUG 646 if (dev->powersrc == NULL) { 647 DPRINTF(("usbd_set_config_index: No power source?\n")); 648 return (USBD_IOERROR); 649 } 650 #endif 651 power = cdp->bMaxPower * 2; 652 if (power > dev->powersrc->power) { 653 DPRINTF(("power exceeded %d %d\n", power,dev->powersrc->power)); 654 /* XXX print nicer message. */ 655 if (msg) 656 printf("%s: device addr %d (config %d) exceeds power " 657 "budget, %d mA > %d mA\n", 658 USBDEVNAME(dev->bus->bdev), dev->address, 659 cdp->bConfigurationValue, 660 power, dev->powersrc->power); 661 err = USBD_NO_POWER; 662 goto bad; 663 } 664 dev->power = power; 665 dev->self_powered = selfpowered; 666 667 /* Set the actual configuration value. */ 668 DPRINTF(("usbd_set_config_index: set config %d\n", 669 cdp->bConfigurationValue)); 670 err = usbd_set_config(dev, cdp->bConfigurationValue); 671 if (err) { 672 DPRINTF(("usbd_set_config_index: setting config=%d failed, " 673 "error=%s\n", 674 cdp->bConfigurationValue, usbd_errstr(err))); 675 goto bad; 676 } 677 678 /* Allocate and fill interface data. */ 679 nifc = cdp->bNumInterface; 680 dev->ifaces = malloc(nifc * sizeof(struct usbd_interface), 681 M_USB, M_NOWAIT); 682 if (dev->ifaces == NULL) { 683 err = USBD_NOMEM; 684 goto bad; 685 } 686 DPRINTFN(5,("usbd_set_config_index: dev=%p cdesc=%p\n", dev, cdp)); 687 dev->cdesc = cdp; 688 dev->config = cdp->bConfigurationValue; 689 for (ifcidx = 0; ifcidx < nifc; ifcidx++) { 690 err = usbd_fill_iface_data(dev, ifcidx, 0); 691 if (err) { 692 while (--ifcidx >= 0) 693 usbd_free_iface_data(dev, ifcidx); 694 goto bad; 695 } 696 } 697 698 return (USBD_NORMAL_COMPLETION); 699 700 bad: 701 free(cdp, M_USB); 702 return (err); 703 } 704 705 /* XXX add function for alternate settings */ 706 707 usbd_status 708 usbd_setup_pipe(usbd_device_handle dev, usbd_interface_handle iface, 709 struct usbd_endpoint *ep, int ival, usbd_pipe_handle *pipe) 710 { 711 usbd_pipe_handle p; 712 usbd_status err; 713 714 DPRINTFN(1,("usbd_setup_pipe: dev=%p iface=%p ep=%p pipe=%p\n", 715 dev, iface, ep, pipe)); 716 p = malloc(dev->bus->pipe_size, M_USB, M_NOWAIT); 717 if (p == NULL) 718 return (USBD_NOMEM); 719 p->device = dev; 720 p->iface = iface; 721 p->endpoint = ep; 722 ep->refcnt++; 723 p->refcnt = 1; 724 p->intrxfer = 0; 725 p->running = 0; 726 p->aborting = 0; 727 p->repeat = 0; 728 p->interval = ival; 729 SIMPLEQ_INIT(&p->queue); 730 err = dev->bus->methods->open_pipe(p); 731 if (err) { 732 DPRINTFN(-1,("usbd_setup_pipe: endpoint=0x%x failed, error=" 733 "%s\n", 734 ep->edesc->bEndpointAddress, usbd_errstr(err))); 735 free(p, M_USB); 736 return (err); 737 } 738 /* Clear any stall and make sure DATA0 toggle will be used next. */ 739 if (UE_GET_ADDR(ep->edesc->bEndpointAddress) != USB_CONTROL_ENDPOINT) 740 usbd_clear_endpoint_stall(p); 741 *pipe = p; 742 return (USBD_NORMAL_COMPLETION); 743 } 744 745 /* Abort the device control pipe. */ 746 void 747 usbd_kill_pipe(usbd_pipe_handle pipe) 748 { 749 usbd_abort_pipe(pipe); 750 pipe->methods->close(pipe); 751 pipe->endpoint->refcnt--; 752 free(pipe, M_USB); 753 } 754 755 int 756 usbd_getnewaddr(usbd_bus_handle bus) 757 { 758 int addr; 759 760 for (addr = 1; addr < USB_MAX_DEVICES; addr++) 761 if (bus->devices[addr] == 0) 762 return (addr); 763 return (-1); 764 } 765 766 767 usbd_status 768 usbd_probe_and_attach(device_ptr_t parent, usbd_device_handle dev, 769 int port, int addr) 770 { 771 struct usb_attach_arg uaa; 772 usb_device_descriptor_t *dd = &dev->ddesc; 773 int found, i, confi, nifaces; 774 usbd_status err; 775 device_ptr_t dv; 776 usbd_interface_handle ifaces[256]; /* 256 is the absolute max */ 777 778 #if defined(__FreeBSD__) 779 /* 780 * XXX uaa is a static var. Not a problem as it _should_ be used only 781 * during probe and attach. Should be changed however. 782 */ 783 device_t bdev; 784 bdev = device_add_child(parent, NULL, -1, &uaa); 785 if (!bdev) { 786 printf("%s: Device creation failed\n", USBDEVNAME(dev->bus->bdev)); 787 return (USBD_INVAL); 788 } 789 device_quiet(bdev); 790 #endif 791 792 uaa.device = dev; 793 uaa.iface = NULL; 794 uaa.ifaces = NULL; 795 uaa.nifaces = 0; 796 uaa.usegeneric = 0; 797 uaa.port = port; 798 uaa.configno = UHUB_UNK_CONFIGURATION; 799 uaa.ifaceno = UHUB_UNK_INTERFACE; 800 uaa.vendor = UGETW(dd->idVendor); 801 uaa.product = UGETW(dd->idProduct); 802 uaa.release = UGETW(dd->bcdDevice); 803 804 /* First try with device specific drivers. */ 805 DPRINTF(("usbd_probe_and_attach: trying device specific drivers\n")); 806 dv = USB_DO_ATTACH(dev, bdev, parent, &uaa, usbd_print, usbd_submatch); 807 if (dv) { 808 dev->subdevs = malloc(2 * sizeof dv, M_USB, M_NOWAIT); 809 if (dev->subdevs == NULL) 810 return (USBD_NOMEM); 811 dev->subdevs[0] = dv; 812 dev->subdevs[1] = 0; 813 return (USBD_NORMAL_COMPLETION); 814 } 815 816 DPRINTF(("usbd_probe_and_attach: no device specific driver found\n")); 817 818 DPRINTF(("usbd_probe_and_attach: looping over %d configurations\n", 819 dd->bNumConfigurations)); 820 /* Next try with interface drivers. */ 821 for (confi = 0; confi < dd->bNumConfigurations; confi++) { 822 DPRINTFN(1,("usbd_probe_and_attach: trying config idx=%d\n", 823 confi)); 824 err = usbd_set_config_index(dev, confi, 1); 825 if (err) { 826 #ifdef USB_DEBUG 827 DPRINTF(("%s: port %d, set config at addr %d failed, " 828 "error=%s\n", USBDEVPTRNAME(parent), port, 829 addr, usbd_errstr(err))); 830 #else 831 printf("%s: port %d, set config at addr %d failed\n", 832 USBDEVPTRNAME(parent), port, addr); 833 #endif 834 #if defined(__FreeBSD__) 835 device_delete_child(parent, bdev); 836 #endif 837 838 return (err); 839 } 840 nifaces = dev->cdesc->bNumInterface; 841 uaa.configno = dev->cdesc->bConfigurationValue; 842 for (i = 0; i < nifaces; i++) 843 ifaces[i] = &dev->ifaces[i]; 844 uaa.ifaces = ifaces; 845 uaa.nifaces = nifaces; 846 dev->subdevs = malloc((nifaces+1) * sizeof dv, M_USB,M_NOWAIT); 847 if (dev->subdevs == NULL) { 848 #if defined(__FreeBSD__) 849 device_delete_child(parent, bdev); 850 #endif 851 return (USBD_NOMEM); 852 } 853 854 found = 0; 855 for (i = 0; i < nifaces; i++) { 856 if (ifaces[i] == NULL) 857 continue; /* interface already claimed */ 858 uaa.iface = ifaces[i]; 859 uaa.ifaceno = ifaces[i]->idesc->bInterfaceNumber; 860 dv = USB_DO_ATTACH(dev, bdev, parent, &uaa, usbd_print, 861 usbd_submatch); 862 if (dv != NULL) { 863 dev->subdevs[found++] = dv; 864 dev->subdevs[found] = 0; 865 ifaces[i] = 0; /* consumed */ 866 867 #if defined(__FreeBSD__) 868 /* create another child for the next iface */ 869 bdev = device_add_child(parent, NULL, -1,&uaa); 870 if (!bdev) { 871 printf("%s: Device creation failed\n", 872 USBDEVNAME(dev->bus->bdev)); 873 return (USBD_NORMAL_COMPLETION); 874 } 875 device_quiet(bdev); 876 #endif 877 } 878 } 879 if (found != 0) { 880 #if defined(__FreeBSD__) 881 /* remove the last created child again; it is unused */ 882 device_delete_child(parent, bdev); 883 #endif 884 return (USBD_NORMAL_COMPLETION); 885 } 886 free(dev->subdevs, M_USB); 887 dev->subdevs = 0; 888 } 889 /* No interfaces were attached in any of the configurations. */ 890 891 if (dd->bNumConfigurations > 1) /* don't change if only 1 config */ 892 usbd_set_config_index(dev, 0, 0); 893 894 DPRINTF(("usbd_probe_and_attach: no interface drivers found\n")); 895 896 /* Finally try the generic driver. */ 897 uaa.iface = NULL; 898 uaa.usegeneric = 1; 899 uaa.configno = UHUB_UNK_CONFIGURATION; 900 uaa.ifaceno = UHUB_UNK_INTERFACE; 901 dv = USB_DO_ATTACH(dev, bdev, parent, &uaa, usbd_print, usbd_submatch); 902 if (dv != NULL) { 903 dev->subdevs = malloc(2 * sizeof dv, M_USB, M_NOWAIT); 904 if (dev->subdevs == 0) 905 return (USBD_NOMEM); 906 dev->subdevs[0] = dv; 907 dev->subdevs[1] = 0; 908 return (USBD_NORMAL_COMPLETION); 909 } 910 911 /* 912 * The generic attach failed, but leave the device as it is. 913 * We just did not find any drivers, that's all. The device is 914 * fully operational and not harming anyone. 915 */ 916 DPRINTF(("usbd_probe_and_attach: generic attach failed\n")); 917 #if defined(__FreeBSD__) 918 device_delete_child(parent, bdev); 919 #endif 920 return (USBD_NORMAL_COMPLETION); 921 } 922 923 924 /* 925 * Called when a new device has been put in the powered state, 926 * but not yet in the addressed state. 927 * Get initial descriptor, set the address, get full descriptor, 928 * and attach a driver. 929 */ 930 usbd_status 931 usbd_new_device(device_ptr_t parent, usbd_bus_handle bus, int depth, 932 int lowspeed, int port, struct usbd_port *up) 933 { 934 usbd_device_handle dev; 935 usb_device_descriptor_t *dd; 936 usbd_status err; 937 int addr; 938 int i; 939 940 DPRINTF(("usbd_new_device bus=%p port=%d depth=%d lowspeed=%d\n", 941 bus, port, depth, lowspeed)); 942 addr = usbd_getnewaddr(bus); 943 if (addr < 0) { 944 printf("%s: No free USB addresses, new device ignored.\n", 945 USBDEVNAME(bus->bdev)); 946 return (USBD_NO_ADDR); 947 } 948 949 dev = malloc(sizeof *dev, M_USB, M_NOWAIT); 950 if (dev == NULL) 951 return (USBD_NOMEM); 952 memset(dev, 0, sizeof(*dev)); 953 954 dev->bus = bus; 955 956 /* Set up default endpoint handle. */ 957 dev->def_ep.edesc = &dev->def_ep_desc; 958 959 /* Set up default endpoint descriptor. */ 960 dev->def_ep_desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 961 dev->def_ep_desc.bDescriptorType = UDESC_ENDPOINT; 962 dev->def_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 963 dev->def_ep_desc.bmAttributes = UE_CONTROL; 964 USETW(dev->def_ep_desc.wMaxPacketSize, USB_MAX_IPACKET); 965 dev->def_ep_desc.bInterval = 0; 966 967 dev->quirks = &usbd_no_quirk; 968 dev->address = USB_START_ADDR; 969 dev->ddesc.bMaxPacketSize = 0; 970 dev->lowspeed = lowspeed != 0; 971 dev->depth = depth; 972 dev->powersrc = up; 973 dev->langid = USBD_NOLANG; 974 dev->cookie.cookie = ++usb_cookie_no; 975 976 /* Establish the default pipe. */ 977 err = usbd_setup_pipe(dev, 0, &dev->def_ep, USBD_DEFAULT_INTERVAL, 978 &dev->default_pipe); 979 if (err) { 980 usbd_remove_device(dev, up); 981 return (err); 982 } 983 984 up->device = dev; 985 dd = &dev->ddesc; 986 /* Try a few times in case the device is slow (i.e. outside specs.) */ 987 for (i = 0; i < 3; i++) { 988 /* Get the first 8 bytes of the device descriptor. */ 989 err = usbd_get_desc(dev, UDESC_DEVICE, 0, USB_MAX_IPACKET, dd); 990 if (!err) 991 break; 992 usbd_delay_ms(dev, 200); 993 } 994 if (err) { 995 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting first desc " 996 "failed\n", addr)); 997 usbd_remove_device(dev, up); 998 return (err); 999 } 1000 1001 DPRINTF(("usbd_new_device: adding unit addr=%d, rev=%02x, class=%d, " 1002 "subclass=%d, protocol=%d, maxpacket=%d, len=%d, ls=%d\n", 1003 addr,UGETW(dd->bcdUSB), dd->bDeviceClass, dd->bDeviceSubClass, 1004 dd->bDeviceProtocol, dd->bMaxPacketSize, dd->bLength, 1005 dev->lowspeed)); 1006 1007 if (dd->bDescriptorType != UDESC_DEVICE) { 1008 /* Illegal device descriptor */ 1009 DPRINTFN(-1,("usbd_new_device: illegal descriptor %d\n", 1010 dd->bDescriptorType)); 1011 usbd_remove_device(dev, up); 1012 return (USBD_INVAL); 1013 } 1014 1015 if (dd->bLength < USB_DEVICE_DESCRIPTOR_SIZE) { 1016 DPRINTFN(-1,("usbd_new_device: bad length %d\n", dd->bLength)); 1017 usbd_remove_device(dev, up); 1018 return (USBD_INVAL); 1019 } 1020 1021 USETW(dev->def_ep_desc.wMaxPacketSize, dd->bMaxPacketSize); 1022 1023 err = usbd_reload_device_desc(dev); 1024 if (err) { 1025 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting full desc " 1026 "failed\n", addr)); 1027 usbd_remove_device(dev, up); 1028 return (err); 1029 } 1030 1031 /* Set the address */ 1032 err = usbd_set_address(dev, addr); 1033 DPRINTFN(5,("usbd_new_device: setting device address=%d\n", addr)); 1034 if (err) { 1035 DPRINTFN(-1,("usb_new_device: set address %d failed\n", addr)); 1036 err = USBD_SET_ADDR_FAILED; 1037 usbd_remove_device(dev, up); 1038 return (err); 1039 } 1040 /* Allow device time to set new address */ 1041 usbd_delay_ms(dev, USB_SET_ADDRESS_SETTLE); 1042 1043 dev->address = addr; /* New device address now */ 1044 bus->devices[addr] = dev; 1045 1046 /* Assume 100mA bus powered for now. Changed when configured. */ 1047 dev->power = USB_MIN_POWER; 1048 dev->self_powered = 0; 1049 1050 DPRINTF(("usbd_new_device: new dev (addr %d), dev=%p, parent=%p\n", 1051 addr, dev, parent)); 1052 1053 usbd_add_dev_event(USB_EVENT_DEVICE_ATTACH, dev); 1054 1055 err = usbd_probe_and_attach(parent, dev, port, addr); 1056 if (err) { 1057 usbd_remove_device(dev, up); 1058 return (err); 1059 } 1060 1061 return (USBD_NORMAL_COMPLETION); 1062 } 1063 1064 usbd_status 1065 usbd_reload_device_desc(usbd_device_handle dev) 1066 { 1067 usbd_status err; 1068 1069 /* Get the full device descriptor. */ 1070 err = usbd_get_device_desc(dev, &dev->ddesc); 1071 if (err) 1072 return (err); 1073 1074 /* Figure out what's wrong with this device. */ 1075 dev->quirks = usbd_find_quirk(&dev->ddesc); 1076 1077 return (USBD_NORMAL_COMPLETION); 1078 } 1079 1080 void 1081 usbd_remove_device(usbd_device_handle dev, struct usbd_port *up) 1082 { 1083 DPRINTF(("usbd_remove_device: %p\n", dev)); 1084 1085 if (dev->default_pipe != NULL) 1086 usbd_kill_pipe(dev->default_pipe); 1087 up->device = 0; 1088 dev->bus->devices[dev->address] = 0; 1089 1090 free(dev, M_USB); 1091 } 1092 1093 #if defined(__NetBSD__) || defined(__OpenBSD__) 1094 int 1095 usbd_print(void *aux, const char *pnp) 1096 { 1097 struct usb_attach_arg *uaa = aux; 1098 char devinfo[1024]; 1099 1100 DPRINTFN(15, ("usbd_print dev=%p\n", uaa->device)); 1101 if (pnp) { 1102 if (!uaa->usegeneric) 1103 return (QUIET); 1104 usbd_devinfo(uaa->device, 1, devinfo); 1105 printf("%s, %s", devinfo, pnp); 1106 } 1107 if (uaa->port != 0) 1108 printf(" port %d", uaa->port); 1109 if (uaa->configno != UHUB_UNK_CONFIGURATION) 1110 printf(" configuration %d", uaa->configno); 1111 if (uaa->ifaceno != UHUB_UNK_INTERFACE) 1112 printf(" interface %d", uaa->ifaceno); 1113 #if 0 1114 /* 1115 * It gets very crowded with these locators on the attach line. 1116 * They are not really needed since they are printed in the clear 1117 * by each driver. 1118 */ 1119 if (uaa->vendor != UHUB_UNK_VENDOR) 1120 printf(" vendor 0x%04x", uaa->vendor); 1121 if (uaa->product != UHUB_UNK_PRODUCT) 1122 printf(" product 0x%04x", uaa->product); 1123 if (uaa->release != UHUB_UNK_RELEASE) 1124 printf(" release 0x%04x", uaa->release); 1125 #endif 1126 return (UNCONF); 1127 } 1128 1129 #if defined(__NetBSD__) 1130 int 1131 usbd_submatch(struct device *parent, struct cfdata *cf, void *aux) 1132 { 1133 #elif defined(__OpenBSD__) 1134 int 1135 usbd_submatch(struct device *parent, void *match, void *aux) 1136 { 1137 struct cfdata *cf = match; 1138 #endif 1139 struct usb_attach_arg *uaa = aux; 1140 1141 DPRINTFN(5,("usbd_submatch port=%d,%d configno=%d,%d " 1142 "ifaceno=%d,%d vendor=%d,%d product=%d,%d release=%d,%d\n", 1143 uaa->port, cf->uhubcf_port, 1144 uaa->configno, cf->uhubcf_configuration, 1145 uaa->ifaceno, cf->uhubcf_interface, 1146 uaa->vendor, cf->uhubcf_vendor, 1147 uaa->product, cf->uhubcf_product, 1148 uaa->release, cf->uhubcf_release)); 1149 if (uaa->port != 0 && /* root hub has port 0, it should match */ 1150 ((uaa->port != 0 && 1151 cf->uhubcf_port != UHUB_UNK_PORT && 1152 cf->uhubcf_port != uaa->port) || 1153 (uaa->configno != UHUB_UNK_CONFIGURATION && 1154 cf->uhubcf_configuration != UHUB_UNK_CONFIGURATION && 1155 cf->uhubcf_configuration != uaa->configno) || 1156 (uaa->ifaceno != UHUB_UNK_INTERFACE && 1157 cf->uhubcf_interface != UHUB_UNK_INTERFACE && 1158 cf->uhubcf_interface != uaa->ifaceno) || 1159 (uaa->vendor != UHUB_UNK_VENDOR && 1160 cf->uhubcf_vendor != UHUB_UNK_VENDOR && 1161 cf->uhubcf_vendor != uaa->vendor) || 1162 (uaa->product != UHUB_UNK_PRODUCT && 1163 cf->uhubcf_product != UHUB_UNK_PRODUCT && 1164 cf->uhubcf_product != uaa->product) || 1165 (uaa->release != UHUB_UNK_RELEASE && 1166 cf->uhubcf_release != UHUB_UNK_RELEASE && 1167 cf->uhubcf_release != uaa->release) 1168 ) 1169 ) 1170 return 0; 1171 if (cf->uhubcf_vendor != UHUB_UNK_VENDOR && 1172 cf->uhubcf_vendor == uaa->vendor && 1173 cf->uhubcf_product != UHUB_UNK_PRODUCT && 1174 cf->uhubcf_product == uaa->product) { 1175 /* We have a vendor&product locator match */ 1176 if (cf->uhubcf_release != UHUB_UNK_RELEASE && 1177 cf->uhubcf_release == uaa->release) 1178 uaa->matchlvl = UMATCH_VENDOR_PRODUCT_REV; 1179 else 1180 uaa->matchlvl = UMATCH_VENDOR_PRODUCT; 1181 } else 1182 uaa->matchlvl = 0; 1183 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 1184 } 1185 1186 #endif 1187 1188 void 1189 usbd_fill_deviceinfo(usbd_device_handle dev, struct usb_device_info *di, 1190 int usedev) 1191 { 1192 struct usbd_port *p; 1193 int i, err, s; 1194 1195 di->bus = USBDEVUNIT(dev->bus->bdev); 1196 di->addr = dev->address; 1197 di->cookie = dev->cookie; 1198 usbd_devinfo_vp(dev, di->vendor, di->product, usedev); 1199 usbd_printBCD(di->release, UGETW(dev->ddesc.bcdDevice)); 1200 di->vendorNo = UGETW(dev->ddesc.idVendor); 1201 di->productNo = UGETW(dev->ddesc.idProduct); 1202 di->releaseNo = UGETW(dev->ddesc.bcdDevice); 1203 di->class = dev->ddesc.bDeviceClass; 1204 di->subclass = dev->ddesc.bDeviceSubClass; 1205 di->protocol = dev->ddesc.bDeviceProtocol; 1206 di->config = dev->config; 1207 di->power = dev->self_powered ? 0 : dev->power; 1208 di->lowspeed = dev->lowspeed; 1209 1210 if (dev->subdevs != NULL) { 1211 for (i = 0; dev->subdevs[i] && 1212 i < USB_MAX_DEVNAMES; i++) { 1213 strncpy(di->devnames[i], USBDEVPTRNAME(dev->subdevs[i]), 1214 USB_MAX_DEVNAMELEN); 1215 di->devnames[i][USB_MAX_DEVNAMELEN-1] = '\0'; 1216 } 1217 } else { 1218 i = 0; 1219 } 1220 for (/*i is set */; i < USB_MAX_DEVNAMES; i++) 1221 di->devnames[i][0] = 0; /* empty */ 1222 1223 if (dev->hub) { 1224 for (i = 0; 1225 i < sizeof(di->ports) / sizeof(di->ports[0]) && 1226 i < dev->hub->hubdesc.bNbrPorts; 1227 i++) { 1228 p = &dev->hub->ports[i]; 1229 if (p->device) 1230 err = p->device->address; 1231 else { 1232 s = UGETW(p->status.wPortStatus); 1233 if (s & UPS_PORT_ENABLED) 1234 err = USB_PORT_ENABLED; 1235 else if (s & UPS_SUSPEND) 1236 err = USB_PORT_SUSPENDED; 1237 else if (s & UPS_PORT_POWER) 1238 err = USB_PORT_POWERED; 1239 else 1240 err = USB_PORT_DISABLED; 1241 } 1242 di->ports[i] = err; 1243 } 1244 di->nports = dev->hub->hubdesc.bNbrPorts; 1245 } else 1246 di->nports = 0; 1247 } 1248 1249 void 1250 usb_free_device(usbd_device_handle dev) 1251 { 1252 int ifcidx, nifc; 1253 1254 if (dev->default_pipe != NULL) 1255 usbd_kill_pipe(dev->default_pipe); 1256 if (dev->ifaces != NULL) { 1257 nifc = dev->cdesc->bNumInterface; 1258 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 1259 usbd_free_iface_data(dev, ifcidx); 1260 free(dev->ifaces, M_USB); 1261 } 1262 if (dev->cdesc != NULL) 1263 free(dev->cdesc, M_USB); 1264 if (dev->subdevs != NULL) 1265 free(dev->subdevs, M_USB); 1266 free(dev, M_USB); 1267 } 1268 1269 /* 1270 * The general mechanism for detaching drivers works as follows: Each 1271 * driver is responsible for maintaining a reference count on the 1272 * number of outstanding references to its softc (e.g. from 1273 * processing hanging in a read or write). The detach method of the 1274 * driver decrements this counter and flags in the softc that the 1275 * driver is dying and then wakes any sleepers. It then sleeps on the 1276 * softc. Each place that can sleep must maintain the reference 1277 * count. When the reference count drops to -1 (0 is the normal value 1278 * of the reference count) the a wakeup on the softc is performed 1279 * signaling to the detach waiter that all references are gone. 1280 */ 1281 1282 /* 1283 * Called from process context when we discover that a port has 1284 * been disconnected. 1285 */ 1286 void 1287 usb_disconnect_port(struct usbd_port *up, device_ptr_t parent) 1288 { 1289 usbd_device_handle dev = up->device; 1290 char *hubname = USBDEVPTRNAME(parent); 1291 int i; 1292 1293 DPRINTFN(3,("uhub_disconnect: up=%p dev=%p port=%d\n", 1294 up, dev, up->portno)); 1295 1296 #ifdef DIAGNOSTIC 1297 if (dev == NULL) { 1298 printf("usb_disconnect_port: no device\n"); 1299 return; 1300 } 1301 #endif 1302 1303 if (dev->subdevs != NULL) { 1304 DPRINTFN(3,("usb_disconnect_port: disconnect subdevs\n")); 1305 for (i = 0; dev->subdevs[i]; i++) { 1306 printf("%s: at %s", USBDEVPTRNAME(dev->subdevs[i]), 1307 hubname); 1308 if (up->portno != 0) 1309 printf(" port %d", up->portno); 1310 printf(" (addr %d) disconnected\n", dev->address); 1311 config_detach(dev->subdevs[i], DETACH_FORCE); 1312 } 1313 } 1314 1315 usbd_add_dev_event(USB_EVENT_DEVICE_DETACH, dev); 1316 dev->bus->devices[dev->address] = NULL; 1317 up->device = NULL; 1318 usb_free_device(dev); 1319 } 1320 1321 #ifdef __OpenBSD__ 1322 void *usb_realloc(void *p, u_int size, int pool, int flags) 1323 { 1324 void *q; 1325 1326 q = malloc(size, pool, flags); 1327 if (q == NULL) 1328 return (NULL); 1329 bcopy(p, q, size); 1330 free(p, pool); 1331 return (q); 1332 } 1333 #endif 1334