1 /* $NetBSD: usb_subr.c,v 1.85 2001/01/21 02:34:34 augustss 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/param.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/malloc.h> 45 #if defined(__NetBSD__) || defined(__OpenBSD__) 46 #include <sys/device.h> 47 #include <sys/select.h> 48 #elif defined(__FreeBSD__) 49 #include <sys/module.h> 50 #include <sys/bus.h> 51 #endif 52 #include <sys/proc.h> 53 54 #include <machine/bus.h> 55 56 #include <dev/usb/usb.h> 57 58 #include <dev/usb/usbdi.h> 59 #include <dev/usb/usbdi_util.h> 60 #include <dev/usb/usbdivar.h> 61 #include <dev/usb/usbdevs.h> 62 #include <dev/usb/usb_quirks.h> 63 64 #if defined(__FreeBSD__) 65 #include <machine/clock.h> 66 #define delay(d) DELAY(d) 67 #endif 68 69 #ifdef USB_DEBUG 70 #define DPRINTF(x) if (usbdebug) logprintf x 71 #define DPRINTFN(n,x) if (usbdebug>(n)) logprintf x 72 extern int usbdebug; 73 #else 74 #define DPRINTF(x) 75 #define DPRINTFN(n,x) 76 #endif 77 78 Static usbd_status usbd_set_config(usbd_device_handle, int); 79 Static void usbd_devinfo_vp(usbd_device_handle, char *, char *, int); 80 Static char *usbd_get_string(usbd_device_handle, int, char *); 81 Static int usbd_getnewaddr(usbd_bus_handle bus); 82 #if defined(__NetBSD__) 83 Static int usbd_print(void *aux, const char *pnp); 84 Static int usbd_submatch(device_ptr_t, struct cfdata *cf, void *); 85 #elif defined(__OpenBSD__) 86 Static int usbd_print(void *aux, const char *pnp); 87 Static int usbd_submatch(device_ptr_t, void *, void *); 88 #endif 89 Static void usbd_free_iface_data(usbd_device_handle dev, int ifcno); 90 Static void usbd_kill_pipe(usbd_pipe_handle); 91 Static usbd_status usbd_probe_and_attach(device_ptr_t parent, 92 usbd_device_handle dev, int port, int addr); 93 94 Static u_int32_t usb_cookie_no = 0; 95 96 #ifdef USBVERBOSE 97 typedef u_int16_t usb_vendor_id_t; 98 typedef u_int16_t usb_product_id_t; 99 100 /* 101 * Descriptions of of known vendors and devices ("products"). 102 */ 103 struct usb_knowndev { 104 usb_vendor_id_t vendor; 105 usb_product_id_t product; 106 int flags; 107 char *vendorname, *productname; 108 }; 109 #define USB_KNOWNDEV_NOPROD 0x01 /* match on vendor only */ 110 111 #include <dev/usb/usbdevs_data.h> 112 #endif /* USBVERBOSE */ 113 114 Static const char * const usbd_error_strs[] = { 115 "NORMAL_COMPLETION", 116 "IN_PROGRESS", 117 "PENDING_REQUESTS", 118 "NOT_STARTED", 119 "INVAL", 120 "NOMEM", 121 "CANCELLED", 122 "BAD_ADDRESS", 123 "IN_USE", 124 "NO_ADDR", 125 "SET_ADDR_FAILED", 126 "NO_POWER", 127 "TOO_DEEP", 128 "IOERROR", 129 "NOT_CONFIGURED", 130 "TIMEOUT", 131 "SHORT_XFER", 132 "STALLED", 133 "INTERRUPTED", 134 "XXX", 135 }; 136 137 const char * 138 usbd_errstr(usbd_status err) 139 { 140 static char buffer[5]; 141 142 if (err < USBD_ERROR_MAX) { 143 return usbd_error_strs[err]; 144 } else { 145 snprintf(buffer, sizeof buffer, "%d", err); 146 return buffer; 147 } 148 } 149 150 usbd_status 151 usbd_get_string_desc(usbd_device_handle dev, int sindex, int langid, 152 usb_string_descriptor_t *sdesc) 153 { 154 usb_device_request_t req; 155 usbd_status err; 156 157 req.bmRequestType = UT_READ_DEVICE; 158 req.bRequest = UR_GET_DESCRIPTOR; 159 USETW2(req.wValue, UDESC_STRING, sindex); 160 USETW(req.wIndex, langid); 161 USETW(req.wLength, 1); /* only size byte first */ 162 err = usbd_do_request(dev, &req, sdesc); 163 if (err) 164 return (err); 165 USETW(req.wLength, sdesc->bLength); /* the whole string */ 166 return (usbd_do_request(dev, &req, sdesc)); 167 } 168 169 char * 170 usbd_get_string(usbd_device_handle dev, int si, char *buf) 171 { 172 int swap = dev->quirks->uq_flags & UQ_SWAP_UNICODE; 173 usb_string_descriptor_t us; 174 char *s; 175 int i, n; 176 u_int16_t c; 177 usbd_status err; 178 179 if (si == 0) 180 return (0); 181 if (dev->quirks->uq_flags & UQ_NO_STRINGS) 182 return (0); 183 if (dev->langid == USBD_NOLANG) { 184 /* Set up default language */ 185 err = usbd_get_string_desc(dev, USB_LANGUAGE_TABLE, 0, &us); 186 if (err || us.bLength < 4) { 187 dev->langid = 0; /* Well, just pick English then */ 188 } else { 189 /* Pick the first language as the default. */ 190 dev->langid = UGETW(us.bString[0]); 191 } 192 } 193 err = usbd_get_string_desc(dev, si, dev->langid, &us); 194 if (err) 195 return (0); 196 s = buf; 197 n = us.bLength / 2 - 1; 198 for (i = 0; i < n; i++) { 199 c = UGETW(us.bString[i]); 200 /* Convert from Unicode, handle buggy strings. */ 201 if ((c & 0xff00) == 0) 202 *s++ = c; 203 else if ((c & 0x00ff) == 0 && swap) 204 *s++ = c >> 8; 205 else 206 *s++ = '?'; 207 } 208 *s++ = 0; 209 return (buf); 210 } 211 212 static void 213 usbd_trim_spaces(char *p) 214 { 215 char *q, *e; 216 217 if (p == NULL) 218 return; 219 q = e = p; 220 while (*q == ' ') /* skip leading spaces */ 221 q++; 222 while ((*p = *q++)) /* copy string */ 223 if (*p++ != ' ') /* remember last non-space */ 224 e = p; 225 *e = 0; /* kill trailing spaces */ 226 } 227 228 void 229 usbd_devinfo_vp(usbd_device_handle dev, char *v, char *p, int usedev) 230 { 231 usb_device_descriptor_t *udd = &dev->ddesc; 232 char *vendor = 0, *product = 0; 233 #ifdef USBVERBOSE 234 const struct usb_knowndev *kdp; 235 #endif 236 237 if (dev == NULL) { 238 v[0] = p[0] = '\0'; 239 return; 240 } 241 242 if (usedev) { 243 vendor = usbd_get_string(dev, udd->iManufacturer, v); 244 usbd_trim_spaces(vendor); 245 product = usbd_get_string(dev, udd->iProduct, p); 246 usbd_trim_spaces(product); 247 } else { 248 vendor = NULL; 249 product = NULL; 250 } 251 #ifdef USBVERBOSE 252 if (vendor == NULL || product == NULL) { 253 for(kdp = usb_knowndevs; 254 kdp->vendorname != NULL; 255 kdp++) { 256 if (kdp->vendor == UGETW(udd->idVendor) && 257 (kdp->product == UGETW(udd->idProduct) || 258 (kdp->flags & USB_KNOWNDEV_NOPROD) != 0)) 259 break; 260 } 261 if (kdp->vendorname != NULL) { 262 if (vendor == NULL) 263 vendor = kdp->vendorname; 264 if (product == NULL) 265 product = (kdp->flags & USB_KNOWNDEV_NOPROD) == 0 ? 266 kdp->productname : NULL; 267 } 268 } 269 #endif 270 if (vendor != NULL && *vendor) 271 strcpy(v, vendor); 272 else 273 sprintf(v, "vendor 0x%04x", UGETW(udd->idVendor)); 274 if (product != NULL && *product) 275 strcpy(p, product); 276 else 277 sprintf(p, "product 0x%04x", UGETW(udd->idProduct)); 278 } 279 280 int 281 usbd_printBCD(char *cp, int bcd) 282 { 283 return (sprintf(cp, "%x.%02x", bcd >> 8, bcd & 0xff)); 284 } 285 286 void 287 usbd_devinfo(usbd_device_handle dev, int showclass, char *cp) 288 { 289 usb_device_descriptor_t *udd = &dev->ddesc; 290 char vendor[USB_MAX_STRING_LEN]; 291 char product[USB_MAX_STRING_LEN]; 292 int bcdDevice, bcdUSB; 293 294 usbd_devinfo_vp(dev, vendor, product, 1); 295 cp += sprintf(cp, "%s %s", vendor, product); 296 if (showclass) 297 cp += sprintf(cp, ", class %d/%d", 298 udd->bDeviceClass, udd->bDeviceSubClass); 299 bcdUSB = UGETW(udd->bcdUSB); 300 bcdDevice = UGETW(udd->bcdDevice); 301 cp += sprintf(cp, ", rev "); 302 cp += usbd_printBCD(cp, bcdUSB); 303 *cp++ = '/'; 304 cp += usbd_printBCD(cp, bcdDevice); 305 cp += sprintf(cp, ", addr %d", dev->address); 306 *cp = 0; 307 } 308 309 /* Delay for a certain number of ms */ 310 void 311 usb_delay_ms(usbd_bus_handle bus, u_int ms) 312 { 313 /* Wait at least two clock ticks so we know the time has passed. */ 314 if (bus->use_polling || cold) 315 delay((ms+1) * 1000); 316 else 317 tsleep(&ms, PRIBIO, "usbdly", (ms*hz+999)/1000 + 1); 318 } 319 320 /* Delay given a device handle. */ 321 void 322 usbd_delay_ms(usbd_device_handle dev, u_int ms) 323 { 324 usb_delay_ms(dev->bus, ms); 325 } 326 327 usbd_status 328 usbd_reset_port(usbd_device_handle dev, int port, usb_port_status_t *ps) 329 { 330 usb_device_request_t req; 331 usbd_status err; 332 int n; 333 334 req.bmRequestType = UT_WRITE_CLASS_OTHER; 335 req.bRequest = UR_SET_FEATURE; 336 USETW(req.wValue, UHF_PORT_RESET); 337 USETW(req.wIndex, port); 338 USETW(req.wLength, 0); 339 err = usbd_do_request(dev, &req, 0); 340 DPRINTFN(1,("usbd_reset_port: port %d reset done, error=%s\n", 341 port, usbd_errstr(err))); 342 if (err) 343 return (err); 344 n = 10; 345 do { 346 /* Wait for device to recover from reset. */ 347 usbd_delay_ms(dev, USB_PORT_RESET_DELAY); 348 err = usbd_get_port_status(dev, port, ps); 349 if (err) { 350 DPRINTF(("usbd_reset_port: get status failed %d\n", 351 err)); 352 return (err); 353 } 354 } while ((UGETW(ps->wPortChange) & UPS_C_PORT_RESET) == 0 && --n > 0); 355 if (n == 0) 356 return (USBD_TIMEOUT); 357 err = usbd_clear_port_feature(dev, port, UHF_C_PORT_RESET); 358 #ifdef USB_DEBUG 359 if (err) 360 DPRINTF(("usbd_reset_port: clear port feature failed %d\n", 361 err)); 362 #endif 363 364 /* Wait for the device to recover from reset. */ 365 usbd_delay_ms(dev, USB_PORT_RESET_RECOVERY); 366 return (err); 367 } 368 369 usb_interface_descriptor_t * 370 usbd_find_idesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx) 371 { 372 char *p = (char *)cd; 373 char *end = p + UGETW(cd->wTotalLength); 374 usb_interface_descriptor_t *d; 375 int curidx, lastidx, curaidx = 0; 376 377 for (curidx = lastidx = -1; p < end; ) { 378 d = (usb_interface_descriptor_t *)p; 379 DPRINTFN(4,("usbd_find_idesc: idx=%d(%d) altidx=%d(%d) len=%d " 380 "type=%d\n", 381 ifaceidx, curidx, altidx, curaidx, 382 d->bLength, d->bDescriptorType)); 383 if (d->bLength == 0) /* bad descriptor */ 384 break; 385 p += d->bLength; 386 if (p <= end && d->bDescriptorType == UDESC_INTERFACE) { 387 if (d->bInterfaceNumber != lastidx) { 388 lastidx = d->bInterfaceNumber; 389 curidx++; 390 curaidx = 0; 391 } else 392 curaidx++; 393 if (ifaceidx == curidx && altidx == curaidx) 394 return (d); 395 } 396 } 397 return (NULL); 398 } 399 400 usb_endpoint_descriptor_t * 401 usbd_find_edesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx, 402 int endptidx) 403 { 404 char *p = (char *)cd; 405 char *end = p + UGETW(cd->wTotalLength); 406 usb_interface_descriptor_t *d; 407 usb_endpoint_descriptor_t *e; 408 int curidx; 409 410 d = usbd_find_idesc(cd, ifaceidx, altidx); 411 if (d == NULL) 412 return (NULL); 413 if (endptidx >= d->bNumEndpoints) /* quick exit */ 414 return (NULL); 415 416 curidx = -1; 417 for (p = (char *)d + d->bLength; p < end; ) { 418 e = (usb_endpoint_descriptor_t *)p; 419 if (e->bLength == 0) /* bad descriptor */ 420 break; 421 p += e->bLength; 422 if (p <= end && e->bDescriptorType == UDESC_INTERFACE) 423 return (NULL); 424 if (p <= end && e->bDescriptorType == UDESC_ENDPOINT) { 425 curidx++; 426 if (curidx == endptidx) 427 return (e); 428 } 429 } 430 return (NULL); 431 } 432 433 usbd_status 434 usbd_fill_iface_data(usbd_device_handle dev, int ifaceidx, int altidx) 435 { 436 usbd_interface_handle ifc = &dev->ifaces[ifaceidx]; 437 usb_interface_descriptor_t *idesc; 438 char *p, *end; 439 int endpt, nendpt; 440 441 DPRINTFN(4,("usbd_fill_iface_data: ifaceidx=%d altidx=%d\n", 442 ifaceidx, altidx)); 443 idesc = usbd_find_idesc(dev->cdesc, ifaceidx, altidx); 444 if (idesc == NULL) 445 return (USBD_INVAL); 446 ifc->device = dev; 447 ifc->idesc = idesc; 448 ifc->index = ifaceidx; 449 ifc->altindex = altidx; 450 nendpt = ifc->idesc->bNumEndpoints; 451 DPRINTFN(4,("usbd_fill_iface_data: found idesc nendpt=%d\n", nendpt)); 452 if (nendpt != 0) { 453 ifc->endpoints = malloc(nendpt * sizeof(struct usbd_endpoint), 454 M_USB, M_NOWAIT); 455 if (ifc->endpoints == NULL) 456 return (USBD_NOMEM); 457 } else 458 ifc->endpoints = NULL; 459 ifc->priv = NULL; 460 p = (char *)ifc->idesc + ifc->idesc->bLength; 461 end = (char *)dev->cdesc + UGETW(dev->cdesc->wTotalLength); 462 #define ed ((usb_endpoint_descriptor_t *)p) 463 for (endpt = 0; endpt < nendpt; endpt++) { 464 DPRINTFN(10,("usbd_fill_iface_data: endpt=%d\n", endpt)); 465 for (; p < end; p += ed->bLength) { 466 ed = (usb_endpoint_descriptor_t *)p; 467 DPRINTFN(10,("usbd_fill_iface_data: p=%p end=%p " 468 "len=%d type=%d\n", 469 p, end, ed->bLength, ed->bDescriptorType)); 470 if (p + ed->bLength <= end && ed->bLength != 0 && 471 ed->bDescriptorType == UDESC_ENDPOINT) 472 goto found; 473 if (ed->bLength == 0 || 474 ed->bDescriptorType == UDESC_INTERFACE) 475 break; 476 } 477 /* passed end, or bad desc */ 478 DPRINTF(("usbd_fill_iface_data: bad descriptor(s): %s\n", 479 ed->bLength == 0 ? "0 length" : 480 ed->bDescriptorType == UDESC_INTERFACE ? "iface desc": 481 "out of data")); 482 goto bad; 483 found: 484 ifc->endpoints[endpt].edesc = ed; 485 ifc->endpoints[endpt].refcnt = 0; 486 p += ed->bLength; 487 } 488 #undef ed 489 LIST_INIT(&ifc->pipes); 490 return (USBD_NORMAL_COMPLETION); 491 492 bad: 493 if (ifc->endpoints != NULL) { 494 free(ifc->endpoints, M_USB); 495 ifc->endpoints = NULL; 496 } 497 return (USBD_INVAL); 498 } 499 500 void 501 usbd_free_iface_data(usbd_device_handle dev, int ifcno) 502 { 503 usbd_interface_handle ifc = &dev->ifaces[ifcno]; 504 if (ifc->endpoints) 505 free(ifc->endpoints, M_USB); 506 } 507 508 Static usbd_status 509 usbd_set_config(usbd_device_handle dev, int conf) 510 { 511 usb_device_request_t req; 512 513 req.bmRequestType = UT_WRITE_DEVICE; 514 req.bRequest = UR_SET_CONFIG; 515 USETW(req.wValue, conf); 516 USETW(req.wIndex, 0); 517 USETW(req.wLength, 0); 518 return (usbd_do_request(dev, &req, 0)); 519 } 520 521 usbd_status 522 usbd_set_config_no(usbd_device_handle dev, int no, int msg) 523 { 524 int index; 525 usb_config_descriptor_t cd; 526 usbd_status err; 527 528 if (no == USB_UNCONFIG_NO) 529 return (usbd_set_config_index(dev, USB_UNCONFIG_INDEX, msg)); 530 531 DPRINTFN(5,("usbd_set_config_no: %d\n", no)); 532 /* Figure out what config index to use. */ 533 for (index = 0; index < dev->ddesc.bNumConfigurations; index++) { 534 err = usbd_get_config_desc(dev, index, &cd); 535 if (err) 536 return (err); 537 if (cd.bConfigurationValue == no) 538 return (usbd_set_config_index(dev, index, msg)); 539 } 540 return (USBD_INVAL); 541 } 542 543 usbd_status 544 usbd_set_config_index(usbd_device_handle dev, int index, int msg) 545 { 546 usb_status_t ds; 547 usb_config_descriptor_t cd, *cdp; 548 usbd_status err; 549 int ifcidx, nifc, len, selfpowered, power; 550 551 DPRINTFN(5,("usbd_set_config_index: dev=%p index=%d\n", dev, index)); 552 553 /* XXX check that all interfaces are idle */ 554 if (dev->config != USB_UNCONFIG_NO) { 555 DPRINTF(("usbd_set_config_index: free old config\n")); 556 /* Free all configuration data structures. */ 557 nifc = dev->cdesc->bNumInterface; 558 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 559 usbd_free_iface_data(dev, ifcidx); 560 free(dev->ifaces, M_USB); 561 free(dev->cdesc, M_USB); 562 dev->ifaces = NULL; 563 dev->cdesc = NULL; 564 dev->config = USB_UNCONFIG_NO; 565 } 566 567 if (index == USB_UNCONFIG_INDEX) { 568 /* We are unconfiguring the device, so leave unallocated. */ 569 DPRINTF(("usbd_set_config_index: set config 0\n")); 570 err = usbd_set_config(dev, USB_UNCONFIG_NO); 571 if (err) 572 DPRINTF(("usbd_set_config_index: setting config=0 " 573 "failed, error=%s\n", usbd_errstr(err))); 574 return (err); 575 } 576 577 /* Get the short descriptor. */ 578 err = usbd_get_config_desc(dev, index, &cd); 579 if (err) 580 return (err); 581 len = UGETW(cd.wTotalLength); 582 cdp = malloc(len, M_USB, M_NOWAIT); 583 if (cdp == NULL) 584 return (USBD_NOMEM); 585 /* Get the full descriptor. */ 586 err = usbd_get_desc(dev, UDESC_CONFIG, index, len, cdp); 587 if (err) 588 goto bad; 589 if (cdp->bDescriptorType != UDESC_CONFIG) { 590 DPRINTFN(-1,("usbd_set_config_index: bad desc %d\n", 591 cdp->bDescriptorType)); 592 err = USBD_INVAL; 593 goto bad; 594 } 595 596 /* Figure out if the device is self or bus powered. */ 597 selfpowered = 0; 598 if (!(dev->quirks->uq_flags & UQ_BUS_POWERED) && 599 (cdp->bmAttributes & UC_SELF_POWERED)) { 600 /* May be self powered. */ 601 if (cdp->bmAttributes & UC_BUS_POWERED) { 602 /* Must ask device. */ 603 if (dev->quirks->uq_flags & UQ_POWER_CLAIM) { 604 /* 605 * Hub claims to be self powered, but isn't. 606 * It seems that the power status can be 607 * determined by the hub characteristics. 608 */ 609 usb_hub_descriptor_t hd; 610 usb_device_request_t req; 611 req.bmRequestType = UT_READ_CLASS_DEVICE; 612 req.bRequest = UR_GET_DESCRIPTOR; 613 USETW(req.wValue, 0); 614 USETW(req.wIndex, 0); 615 USETW(req.wLength, USB_HUB_DESCRIPTOR_SIZE); 616 err = usbd_do_request(dev, &req, &hd); 617 if (!err && 618 (UGETW(hd.wHubCharacteristics) & 619 UHD_PWR_INDIVIDUAL)) 620 selfpowered = 1; 621 DPRINTF(("usbd_set_config_index: charac=0x%04x" 622 ", error=%s\n", 623 UGETW(hd.wHubCharacteristics), 624 usbd_errstr(err))); 625 } else { 626 err = usbd_get_device_status(dev, &ds); 627 if (!err && 628 (UGETW(ds.wStatus) & UDS_SELF_POWERED)) 629 selfpowered = 1; 630 DPRINTF(("usbd_set_config_index: status=0x%04x" 631 ", error=%s\n", 632 UGETW(ds.wStatus), usbd_errstr(err))); 633 } 634 } else 635 selfpowered = 1; 636 } 637 DPRINTF(("usbd_set_config_index: (addr %d) cno=%d attr=0x%02x, " 638 "selfpowered=%d, power=%d\n", 639 cdp->bConfigurationValue, dev->address, cdp->bmAttributes, 640 selfpowered, cdp->bMaxPower * 2)); 641 642 /* Check if we have enough power. */ 643 #ifdef USB_DEBUG 644 if (dev->powersrc == NULL) { 645 DPRINTF(("usbd_set_config_index: No power source?\n")); 646 return (USBD_IOERROR); 647 } 648 #endif 649 power = cdp->bMaxPower * 2; 650 if (power > dev->powersrc->power) { 651 DPRINTF(("power exceeded %d %d\n", power,dev->powersrc->power)); 652 /* XXX print nicer message. */ 653 if (msg) 654 printf("%s: device addr %d (config %d) exceeds power " 655 "budget, %d mA > %d mA\n", 656 USBDEVNAME(dev->bus->bdev), dev->address, 657 cdp->bConfigurationValue, 658 power, dev->powersrc->power); 659 err = USBD_NO_POWER; 660 goto bad; 661 } 662 dev->power = power; 663 dev->self_powered = selfpowered; 664 665 /* Set the actual configuration value. */ 666 DPRINTF(("usbd_set_config_index: set config %d\n", 667 cdp->bConfigurationValue)); 668 err = usbd_set_config(dev, cdp->bConfigurationValue); 669 if (err) { 670 DPRINTF(("usbd_set_config_index: setting config=%d failed, " 671 "error=%s\n", 672 cdp->bConfigurationValue, usbd_errstr(err))); 673 goto bad; 674 } 675 676 /* Allocate and fill interface data. */ 677 nifc = cdp->bNumInterface; 678 dev->ifaces = malloc(nifc * sizeof(struct usbd_interface), 679 M_USB, M_NOWAIT); 680 if (dev->ifaces == NULL) { 681 err = USBD_NOMEM; 682 goto bad; 683 } 684 DPRINTFN(5,("usbd_set_config_index: dev=%p cdesc=%p\n", dev, cdp)); 685 dev->cdesc = cdp; 686 dev->config = cdp->bConfigurationValue; 687 for (ifcidx = 0; ifcidx < nifc; ifcidx++) { 688 err = usbd_fill_iface_data(dev, ifcidx, 0); 689 if (err) { 690 while (--ifcidx >= 0) 691 usbd_free_iface_data(dev, ifcidx); 692 goto bad; 693 } 694 } 695 696 return (USBD_NORMAL_COMPLETION); 697 698 bad: 699 free(cdp, M_USB); 700 return (err); 701 } 702 703 /* XXX add function for alternate settings */ 704 705 usbd_status 706 usbd_setup_pipe(usbd_device_handle dev, usbd_interface_handle iface, 707 struct usbd_endpoint *ep, int ival, usbd_pipe_handle *pipe) 708 { 709 usbd_pipe_handle p; 710 usbd_status err; 711 712 DPRINTFN(1,("usbd_setup_pipe: dev=%p iface=%p ep=%p pipe=%p\n", 713 dev, iface, ep, pipe)); 714 p = malloc(dev->bus->pipe_size, M_USB, M_NOWAIT); 715 if (p == NULL) 716 return (USBD_NOMEM); 717 p->device = dev; 718 p->iface = iface; 719 p->endpoint = ep; 720 ep->refcnt++; 721 p->refcnt = 1; 722 p->intrxfer = 0; 723 p->running = 0; 724 p->aborting = 0; 725 p->repeat = 0; 726 p->interval = ival; 727 SIMPLEQ_INIT(&p->queue); 728 usb_callout_init(p->abort_handle); 729 err = dev->bus->methods->open_pipe(p); 730 if (err) { 731 DPRINTFN(-1,("usbd_setup_pipe: endpoint=0x%x failed, error=" 732 "%s\n", 733 ep->edesc->bEndpointAddress, usbd_errstr(err))); 734 free(p, M_USB); 735 return (err); 736 } 737 /* Clear any stall and make sure DATA0 toggle will be used next. */ 738 if (UE_GET_ADDR(ep->edesc->bEndpointAddress) != USB_CONTROL_ENDPOINT) 739 usbd_clear_endpoint_stall(p); 740 *pipe = p; 741 return (USBD_NORMAL_COMPLETION); 742 } 743 744 /* Abort the device control pipe. */ 745 void 746 usbd_kill_pipe(usbd_pipe_handle pipe) 747 { 748 pipe->methods->close(pipe); 749 pipe->endpoint->refcnt--; 750 free(pipe, M_USB); 751 } 752 753 int 754 usbd_getnewaddr(usbd_bus_handle bus) 755 { 756 int addr; 757 758 for (addr = 1; addr < USB_MAX_DEVICES; addr++) 759 if (bus->devices[addr] == 0) 760 return (addr); 761 return (-1); 762 } 763 764 765 usbd_status 766 usbd_probe_and_attach(device_ptr_t parent, usbd_device_handle dev, 767 int port, int addr) 768 { 769 struct usb_attach_arg uaa; 770 usb_device_descriptor_t *dd = &dev->ddesc; 771 int found, i, confi, nifaces; 772 usbd_status err; 773 device_ptr_t dv; 774 usbd_interface_handle ifaces[256]; /* 256 is the absolute max */ 775 776 #if defined(__FreeBSD__) 777 /* 778 * XXX uaa is a static var. Not a problem as it _should_ be used only 779 * during probe and attach. Should be changed however. 780 */ 781 device_t bdev; 782 bdev = device_add_child(parent, NULL, -1, &uaa); 783 if (!bdev) { 784 printf("%s: Device creation failed\n", USBDEVNAME(dev->bus->bdev)); 785 return (USBD_INVAL); 786 } 787 device_quiet(bdev); 788 #endif 789 790 uaa.device = dev; 791 uaa.iface = NULL; 792 uaa.ifaces = NULL; 793 uaa.nifaces = 0; 794 uaa.usegeneric = 0; 795 uaa.port = port; 796 uaa.configno = UHUB_UNK_CONFIGURATION; 797 uaa.ifaceno = UHUB_UNK_INTERFACE; 798 uaa.vendor = UGETW(dd->idVendor); 799 uaa.product = UGETW(dd->idProduct); 800 uaa.release = UGETW(dd->bcdDevice); 801 802 /* First try with device specific drivers. */ 803 DPRINTF(("usbd_probe_and_attach: trying device specific drivers\n")); 804 dv = USB_DO_ATTACH(dev, bdev, parent, &uaa, usbd_print, usbd_submatch); 805 if (dv) { 806 dev->subdevs = malloc(2 * sizeof dv, M_USB, M_NOWAIT); 807 if (dev->subdevs == NULL) 808 return (USBD_NOMEM); 809 dev->subdevs[0] = dv; 810 dev->subdevs[1] = 0; 811 return (USBD_NORMAL_COMPLETION); 812 } 813 814 DPRINTF(("usbd_probe_and_attach: no device specific driver found\n")); 815 816 DPRINTF(("usbd_probe_and_attach: looping over %d configurations\n", 817 dd->bNumConfigurations)); 818 /* Next try with interface drivers. */ 819 for (confi = 0; confi < dd->bNumConfigurations; confi++) { 820 DPRINTFN(1,("usbd_probe_and_attach: trying config idx=%d\n", 821 confi)); 822 err = usbd_set_config_index(dev, confi, 1); 823 if (err) { 824 #ifdef USB_DEBUG 825 DPRINTF(("%s: port %d, set config at addr %d failed, " 826 "error=%s\n", USBDEVPTRNAME(parent), port, 827 addr, usbd_errstr(err))); 828 #else 829 printf("%s: port %d, set config at addr %d failed\n", 830 USBDEVPTRNAME(parent), port, addr); 831 #endif 832 #if defined(__FreeBSD__) 833 device_delete_child(parent, bdev); 834 #endif 835 836 return (err); 837 } 838 nifaces = dev->cdesc->bNumInterface; 839 uaa.configno = dev->cdesc->bConfigurationValue; 840 for (i = 0; i < nifaces; i++) 841 ifaces[i] = &dev->ifaces[i]; 842 uaa.ifaces = ifaces; 843 uaa.nifaces = nifaces; 844 dev->subdevs = malloc((nifaces+1) * sizeof dv, M_USB,M_NOWAIT); 845 if (dev->subdevs == NULL) { 846 #if defined(__FreeBSD__) 847 device_delete_child(parent, bdev); 848 #endif 849 return (USBD_NOMEM); 850 } 851 852 found = 0; 853 for (i = 0; i < nifaces; i++) { 854 if (ifaces[i] == NULL) 855 continue; /* interface already claimed */ 856 uaa.iface = ifaces[i]; 857 uaa.ifaceno = ifaces[i]->idesc->bInterfaceNumber; 858 dv = USB_DO_ATTACH(dev, bdev, parent, &uaa, usbd_print, 859 usbd_submatch); 860 if (dv != NULL) { 861 dev->subdevs[found++] = dv; 862 dev->subdevs[found] = 0; 863 ifaces[i] = 0; /* consumed */ 864 865 #if defined(__FreeBSD__) 866 /* create another child for the next iface */ 867 bdev = device_add_child(parent, NULL, -1,&uaa); 868 if (!bdev) { 869 printf("%s: Device creation failed\n", 870 USBDEVNAME(dev->bus->bdev)); 871 return (USBD_NORMAL_COMPLETION); 872 } 873 device_quiet(bdev); 874 #endif 875 } 876 } 877 if (found != 0) { 878 #if defined(__FreeBSD__) 879 /* remove the last created child again; it is unused */ 880 device_delete_child(parent, bdev); 881 #endif 882 return (USBD_NORMAL_COMPLETION); 883 } 884 free(dev->subdevs, M_USB); 885 dev->subdevs = 0; 886 } 887 /* No interfaces were attached in any of the configurations. */ 888 889 if (dd->bNumConfigurations > 1) /* don't change if only 1 config */ 890 usbd_set_config_index(dev, 0, 0); 891 892 DPRINTF(("usbd_probe_and_attach: no interface drivers found\n")); 893 894 /* Finally try the generic driver. */ 895 uaa.iface = NULL; 896 uaa.usegeneric = 1; 897 uaa.configno = UHUB_UNK_CONFIGURATION; 898 uaa.ifaceno = UHUB_UNK_INTERFACE; 899 dv = USB_DO_ATTACH(dev, bdev, parent, &uaa, usbd_print, usbd_submatch); 900 if (dv != NULL) { 901 dev->subdevs = malloc(2 * sizeof dv, M_USB, M_NOWAIT); 902 if (dev->subdevs == 0) 903 return (USBD_NOMEM); 904 dev->subdevs[0] = dv; 905 dev->subdevs[1] = 0; 906 return (USBD_NORMAL_COMPLETION); 907 } 908 909 /* 910 * The generic attach failed, but leave the device as it is. 911 * We just did not find any drivers, that's all. The device is 912 * fully operational and not harming anyone. 913 */ 914 DPRINTF(("usbd_probe_and_attach: generic attach failed\n")); 915 #if defined(__FreeBSD__) 916 device_delete_child(parent, bdev); 917 #endif 918 return (USBD_NORMAL_COMPLETION); 919 } 920 921 922 /* 923 * Called when a new device has been put in the powered state, 924 * but not yet in the addressed state. 925 * Get initial descriptor, set the address, get full descriptor, 926 * and attach a driver. 927 */ 928 usbd_status 929 usbd_new_device(device_ptr_t parent, usbd_bus_handle bus, int depth, 930 int lowspeed, int port, struct usbd_port *up) 931 { 932 usbd_device_handle dev; 933 usb_device_descriptor_t *dd; 934 usbd_status err; 935 int addr; 936 int i; 937 938 DPRINTF(("usbd_new_device bus=%p port=%d depth=%d lowspeed=%d\n", 939 bus, port, depth, lowspeed)); 940 addr = usbd_getnewaddr(bus); 941 if (addr < 0) { 942 printf("%s: No free USB addresses, new device ignored.\n", 943 USBDEVNAME(bus->bdev)); 944 return (USBD_NO_ADDR); 945 } 946 947 dev = malloc(sizeof *dev, M_USB, M_NOWAIT); 948 if (dev == NULL) 949 return (USBD_NOMEM); 950 memset(dev, 0, sizeof(*dev)); 951 952 dev->bus = bus; 953 954 /* Set up default endpoint handle. */ 955 dev->def_ep.edesc = &dev->def_ep_desc; 956 957 /* Set up default endpoint descriptor. */ 958 dev->def_ep_desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 959 dev->def_ep_desc.bDescriptorType = UDESC_ENDPOINT; 960 dev->def_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 961 dev->def_ep_desc.bmAttributes = UE_CONTROL; 962 USETW(dev->def_ep_desc.wMaxPacketSize, USB_MAX_IPACKET); 963 dev->def_ep_desc.bInterval = 0; 964 965 dev->quirks = &usbd_no_quirk; 966 dev->address = USB_START_ADDR; 967 dev->ddesc.bMaxPacketSize = 0; 968 dev->lowspeed = lowspeed != 0; 969 dev->depth = depth; 970 dev->powersrc = up; 971 dev->langid = USBD_NOLANG; 972 dev->cookie.cookie = ++usb_cookie_no; 973 974 /* Establish the default pipe. */ 975 err = usbd_setup_pipe(dev, 0, &dev->def_ep, USBD_DEFAULT_INTERVAL, 976 &dev->default_pipe); 977 if (err) { 978 usbd_remove_device(dev, up); 979 return (err); 980 } 981 982 up->device = dev; 983 dd = &dev->ddesc; 984 /* Try a few times in case the device is slow (i.e. outside specs.) */ 985 for (i = 0; i < 3; i++) { 986 /* Get the first 8 bytes of the device descriptor. */ 987 err = usbd_get_desc(dev, UDESC_DEVICE, 0, USB_MAX_IPACKET, dd); 988 if (!err) 989 break; 990 usbd_delay_ms(dev, 200); 991 } 992 if (err) { 993 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting first desc " 994 "failed\n", addr)); 995 usbd_remove_device(dev, up); 996 return (err); 997 } 998 999 DPRINTF(("usbd_new_device: adding unit addr=%d, rev=%02x, class=%d, " 1000 "subclass=%d, protocol=%d, maxpacket=%d, len=%d, ls=%d\n", 1001 addr,UGETW(dd->bcdUSB), dd->bDeviceClass, dd->bDeviceSubClass, 1002 dd->bDeviceProtocol, dd->bMaxPacketSize, dd->bLength, 1003 dev->lowspeed)); 1004 1005 if (dd->bDescriptorType != UDESC_DEVICE) { 1006 /* Illegal device descriptor */ 1007 DPRINTFN(-1,("usbd_new_device: illegal descriptor %d\n", 1008 dd->bDescriptorType)); 1009 usbd_remove_device(dev, up); 1010 return (USBD_INVAL); 1011 } 1012 1013 if (dd->bLength < USB_DEVICE_DESCRIPTOR_SIZE) { 1014 DPRINTFN(-1,("usbd_new_device: bad length %d\n", dd->bLength)); 1015 usbd_remove_device(dev, up); 1016 return (USBD_INVAL); 1017 } 1018 1019 USETW(dev->def_ep_desc.wMaxPacketSize, dd->bMaxPacketSize); 1020 1021 err = usbd_reload_device_desc(dev); 1022 if (err) { 1023 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting full desc " 1024 "failed\n", addr)); 1025 usbd_remove_device(dev, up); 1026 return (err); 1027 } 1028 1029 /* Set the address */ 1030 err = usbd_set_address(dev, addr); 1031 DPRINTFN(5,("usbd_new_device: setting device address=%d\n", addr)); 1032 if (err) { 1033 DPRINTFN(-1,("usb_new_device: set address %d failed\n", addr)); 1034 err = USBD_SET_ADDR_FAILED; 1035 usbd_remove_device(dev, up); 1036 return (err); 1037 } 1038 /* Allow device time to set new address */ 1039 usbd_delay_ms(dev, USB_SET_ADDRESS_SETTLE); 1040 1041 dev->address = addr; /* New device address now */ 1042 bus->devices[addr] = dev; 1043 1044 /* Assume 100mA bus powered for now. Changed when configured. */ 1045 dev->power = USB_MIN_POWER; 1046 dev->self_powered = 0; 1047 1048 DPRINTF(("usbd_new_device: new dev (addr %d), dev=%p, parent=%p\n", 1049 addr, dev, parent)); 1050 1051 usbd_add_dev_event(USB_EVENT_DEVICE_ATTACH, dev); 1052 1053 err = usbd_probe_and_attach(parent, dev, port, addr); 1054 if (err) { 1055 usbd_remove_device(dev, up); 1056 return (err); 1057 } 1058 1059 return (USBD_NORMAL_COMPLETION); 1060 } 1061 1062 usbd_status 1063 usbd_reload_device_desc(usbd_device_handle dev) 1064 { 1065 usbd_status err; 1066 1067 /* Get the full device descriptor. */ 1068 err = usbd_get_device_desc(dev, &dev->ddesc); 1069 if (err) 1070 return (err); 1071 1072 /* Figure out what's wrong with this device. */ 1073 dev->quirks = usbd_find_quirk(&dev->ddesc); 1074 1075 return (USBD_NORMAL_COMPLETION); 1076 } 1077 1078 void 1079 usbd_remove_device(usbd_device_handle dev, struct usbd_port *up) 1080 { 1081 DPRINTF(("usbd_remove_device: %p\n", dev)); 1082 1083 if (dev->default_pipe != NULL) 1084 usbd_kill_pipe(dev->default_pipe); 1085 up->device = 0; 1086 dev->bus->devices[dev->address] = 0; 1087 1088 free(dev, M_USB); 1089 } 1090 1091 #if defined(__NetBSD__) || defined(__OpenBSD__) 1092 int 1093 usbd_print(void *aux, const char *pnp) 1094 { 1095 struct usb_attach_arg *uaa = aux; 1096 char devinfo[1024]; 1097 1098 DPRINTFN(15, ("usbd_print dev=%p\n", uaa->device)); 1099 if (pnp) { 1100 if (!uaa->usegeneric) 1101 return (QUIET); 1102 usbd_devinfo(uaa->device, 1, devinfo); 1103 printf("%s, %s", devinfo, pnp); 1104 } 1105 if (uaa->port != 0) 1106 printf(" port %d", uaa->port); 1107 if (uaa->configno != UHUB_UNK_CONFIGURATION) 1108 printf(" configuration %d", uaa->configno); 1109 if (uaa->ifaceno != UHUB_UNK_INTERFACE) 1110 printf(" interface %d", uaa->ifaceno); 1111 #if 0 1112 /* 1113 * It gets very crowded with these locators on the attach line. 1114 * They are not really needed since they are printed in the clear 1115 * by each driver. 1116 */ 1117 if (uaa->vendor != UHUB_UNK_VENDOR) 1118 printf(" vendor 0x%04x", uaa->vendor); 1119 if (uaa->product != UHUB_UNK_PRODUCT) 1120 printf(" product 0x%04x", uaa->product); 1121 if (uaa->release != UHUB_UNK_RELEASE) 1122 printf(" release 0x%04x", uaa->release); 1123 #endif 1124 return (UNCONF); 1125 } 1126 1127 #if defined(__NetBSD__) 1128 int 1129 usbd_submatch(struct device *parent, struct cfdata *cf, void *aux) 1130 { 1131 #elif defined(__OpenBSD__) 1132 int 1133 usbd_submatch(struct device *parent, void *match, void *aux) 1134 { 1135 struct cfdata *cf = match; 1136 #endif 1137 struct usb_attach_arg *uaa = aux; 1138 1139 DPRINTFN(5,("usbd_submatch port=%d,%d configno=%d,%d " 1140 "ifaceno=%d,%d vendor=%d,%d product=%d,%d release=%d,%d\n", 1141 uaa->port, cf->uhubcf_port, 1142 uaa->configno, cf->uhubcf_configuration, 1143 uaa->ifaceno, cf->uhubcf_interface, 1144 uaa->vendor, cf->uhubcf_vendor, 1145 uaa->product, cf->uhubcf_product, 1146 uaa->release, cf->uhubcf_release)); 1147 if (uaa->port != 0 && /* root hub has port 0, it should match */ 1148 ((uaa->port != 0 && 1149 cf->uhubcf_port != UHUB_UNK_PORT && 1150 cf->uhubcf_port != uaa->port) || 1151 (uaa->configno != UHUB_UNK_CONFIGURATION && 1152 cf->uhubcf_configuration != UHUB_UNK_CONFIGURATION && 1153 cf->uhubcf_configuration != uaa->configno) || 1154 (uaa->ifaceno != UHUB_UNK_INTERFACE && 1155 cf->uhubcf_interface != UHUB_UNK_INTERFACE && 1156 cf->uhubcf_interface != uaa->ifaceno) || 1157 (uaa->vendor != UHUB_UNK_VENDOR && 1158 cf->uhubcf_vendor != UHUB_UNK_VENDOR && 1159 cf->uhubcf_vendor != uaa->vendor) || 1160 (uaa->product != UHUB_UNK_PRODUCT && 1161 cf->uhubcf_product != UHUB_UNK_PRODUCT && 1162 cf->uhubcf_product != uaa->product) || 1163 (uaa->release != UHUB_UNK_RELEASE && 1164 cf->uhubcf_release != UHUB_UNK_RELEASE && 1165 cf->uhubcf_release != uaa->release) 1166 ) 1167 ) 1168 return 0; 1169 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 1170 } 1171 1172 #endif 1173 1174 void 1175 usbd_fill_deviceinfo(usbd_device_handle dev, struct usb_device_info *di, 1176 int usedev) 1177 { 1178 struct usbd_port *p; 1179 int i, err, s; 1180 1181 di->bus = USBDEVUNIT(dev->bus->bdev); 1182 di->addr = dev->address; 1183 di->cookie = dev->cookie; 1184 usbd_devinfo_vp(dev, di->vendor, di->product, usedev); 1185 usbd_printBCD(di->release, UGETW(dev->ddesc.bcdDevice)); 1186 di->vendorNo = UGETW(dev->ddesc.idVendor); 1187 di->productNo = UGETW(dev->ddesc.idProduct); 1188 di->releaseNo = UGETW(dev->ddesc.bcdDevice); 1189 di->class = dev->ddesc.bDeviceClass; 1190 di->subclass = dev->ddesc.bDeviceSubClass; 1191 di->protocol = dev->ddesc.bDeviceProtocol; 1192 di->config = dev->config; 1193 di->power = dev->self_powered ? 0 : dev->power; 1194 di->lowspeed = dev->lowspeed; 1195 1196 if (dev->subdevs != NULL) { 1197 for (i = 0; dev->subdevs[i] && 1198 i < USB_MAX_DEVNAMES; i++) { 1199 strncpy(di->devnames[i], USBDEVPTRNAME(dev->subdevs[i]), 1200 USB_MAX_DEVNAMELEN); 1201 di->devnames[i][USB_MAX_DEVNAMELEN-1] = '\0'; 1202 } 1203 } else { 1204 i = 0; 1205 } 1206 for (/*i is set */; i < USB_MAX_DEVNAMES; i++) 1207 di->devnames[i][0] = 0; /* empty */ 1208 1209 if (dev->hub) { 1210 for (i = 0; 1211 i < sizeof(di->ports) / sizeof(di->ports[0]) && 1212 i < dev->hub->hubdesc.bNbrPorts; 1213 i++) { 1214 p = &dev->hub->ports[i]; 1215 if (p->device) 1216 err = p->device->address; 1217 else { 1218 s = UGETW(p->status.wPortStatus); 1219 if (s & UPS_PORT_ENABLED) 1220 err = USB_PORT_ENABLED; 1221 else if (s & UPS_SUSPEND) 1222 err = USB_PORT_SUSPENDED; 1223 else if (s & UPS_PORT_POWER) 1224 err = USB_PORT_POWERED; 1225 else 1226 err = USB_PORT_DISABLED; 1227 } 1228 di->ports[i] = err; 1229 } 1230 di->nports = dev->hub->hubdesc.bNbrPorts; 1231 } else 1232 di->nports = 0; 1233 } 1234 1235 void 1236 usb_free_device(usbd_device_handle dev) 1237 { 1238 int ifcidx, nifc; 1239 1240 if (dev->default_pipe != NULL) 1241 usbd_kill_pipe(dev->default_pipe); 1242 if (dev->ifaces != NULL) { 1243 nifc = dev->cdesc->bNumInterface; 1244 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 1245 usbd_free_iface_data(dev, ifcidx); 1246 free(dev->ifaces, M_USB); 1247 } 1248 if (dev->cdesc != NULL) 1249 free(dev->cdesc, M_USB); 1250 if (dev->subdevs != NULL) 1251 free(dev->subdevs, M_USB); 1252 free(dev, M_USB); 1253 } 1254 1255 /* 1256 * The general mechanism for detaching drivers works as follows: Each 1257 * driver is responsible for maintaining a reference count on the 1258 * number of outstanding references to its softc (e.g. from 1259 * processing hanging in a read or write). The detach method of the 1260 * driver decrements this counter and flags in the softc that the 1261 * driver is dying and then wakes any sleepers. It then sleeps on the 1262 * softc. Each place that can sleep must maintain the reference 1263 * count. When the reference count drops to -1 (0 is the normal value 1264 * of the reference count) the a wakeup on the softc is performed 1265 * signaling to the detach waiter that all references are gone. 1266 */ 1267 1268 /* 1269 * Called from process context when we discover that a port has 1270 * been disconnected. 1271 */ 1272 void 1273 usb_disconnect_port(struct usbd_port *up, device_ptr_t parent) 1274 { 1275 usbd_device_handle dev = up->device; 1276 char *hubname = USBDEVPTRNAME(parent); 1277 int i; 1278 1279 DPRINTFN(3,("uhub_disconnect: up=%p dev=%p port=%d\n", 1280 up, dev, up->portno)); 1281 1282 #ifdef DIAGNOSTIC 1283 if (dev == NULL) { 1284 printf("usb_disconnect_port: no device\n"); 1285 return; 1286 } 1287 #endif 1288 1289 if (dev->subdevs != NULL) { 1290 DPRINTFN(3,("usb_disconnect_port: disconnect subdevs\n")); 1291 for (i = 0; dev->subdevs[i]; i++) { 1292 printf("%s: at %s", USBDEVPTRNAME(dev->subdevs[i]), 1293 hubname); 1294 if (up->portno != 0) 1295 printf(" port %d", up->portno); 1296 printf(" (addr %d) disconnected\n", dev->address); 1297 #if defined(__NetBSD__) || defined(__OpenBSD__) 1298 config_detach(dev->subdevs[i], DETACH_FORCE); 1299 #elif defined(__FreeBSD__) 1300 device_delete_child(device_get_parent(dev->subdevs[i]), 1301 dev->subdevs[i]); 1302 #endif 1303 1304 } 1305 } 1306 1307 usbd_add_dev_event(USB_EVENT_DEVICE_DETACH, dev); 1308 dev->bus->devices[dev->address] = NULL; 1309 up->device = NULL; 1310 usb_free_device(dev); 1311 } 1312 1313 #ifdef __OpenBSD__ 1314 void *usb_realloc(void *p, u_int size, int pool, int flags) 1315 { 1316 void *q; 1317 1318 q = malloc(size, pool, flags); 1319 if (q == NULL) 1320 return (NULL); 1321 bcopy(p, q, size); 1322 free(p, pool); 1323 return (q); 1324 } 1325 #endif 1326