Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/usb/usb_subr.c
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1 /* $NetBSD: usb_subr.c,v 1.99 2002/07/11 21:14:34 augustss Exp $ */ 2 3 /* Also already have from NetBSD: 4 * $NetBSD: usb_subr.c,v 1.102 2003/01/01 16:21:50 augustss Exp $ 5 * $NetBSD: usb_subr.c,v 1.103 2003/01/10 11:19:13 augustss Exp $ 6 * $NetBSD: usb_subr.c,v 1.111 2004/03/15 10:35:04 augustss Exp $ 7 * $NetBSD: usb_subr.c,v 1.114 2004/06/23 02:30:52 mycroft Exp $ 8 * $NetBSD: usb_subr.c,v 1.115 2004/06/23 05:23:19 mycroft Exp $ 9 * $NetBSD: usb_subr.c,v 1.116 2004/06/23 06:27:54 mycroft Exp $ 10 * $NetBSD: usb_subr.c,v 1.119 2004/10/23 13:26:33 augustss Exp $ 11 */ 12 13 #include <sys/cdefs.h> 14 __FBSDID("$FreeBSD: releng/7.3/sys/dev/usb/usb_subr.c 190251 2009-03-22 06:37:14Z n_hibma $"); 15 16 /*- 17 * Copyright (c) 1998 The NetBSD Foundation, Inc. 18 * All rights reserved. 19 * 20 * This code is derived from software contributed to The NetBSD Foundation 21 * by Lennart Augustsson (lennart@augustsson.net) at 22 * Carlstedt Research & Technology. 23 * 24 * Redistribution and use in source and binary forms, with or without 25 * modification, are permitted provided that the following conditions 26 * are met: 27 * 1. Redistributions of source code must retain the above copyright 28 * notice, this list of conditions and the following disclaimer. 29 * 2. Redistributions in binary form must reproduce the above copyright 30 * notice, this list of conditions and the following disclaimer in the 31 * documentation and/or other materials provided with the distribution. 32 * 3. All advertising materials mentioning features or use of this software 33 * must display the following acknowledgement: 34 * This product includes software developed by the NetBSD 35 * Foundation, Inc. and its contributors. 36 * 4. Neither the name of The NetBSD Foundation nor the names of its 37 * contributors may be used to endorse or promote products derived 38 * from this software without specific prior written permission. 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 41 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 42 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 44 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 45 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 46 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 47 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 48 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 50 * POSSIBILITY OF SUCH DAMAGE. 51 */ 52 53 #include "opt_usb.h" 54 55 #include <sys/param.h> 56 #include <sys/systm.h> 57 #include <sys/kernel.h> 58 #include <sys/malloc.h> 59 #include <sys/module.h> 60 #include <sys/bus.h> 61 #include <sys/proc.h> 62 #include <sys/sysctl.h> 63 64 #include <machine/bus.h> 65 66 #include <dev/usb/usb.h> 67 68 #include <dev/usb/usbdi.h> 69 #include <dev/usb/usbdi_util.h> 70 #include <dev/usb/usbdivar.h> 71 #include "usbdevs.h" 72 #include <dev/usb/usb_quirks.h> 73 74 #define delay(d) DELAY(d) 75 76 #ifdef USB_DEBUG 77 #define DPRINTF(x) if (usbdebug) printf x 78 #define DPRINTFN(n,x) if (usbdebug>(n)) printf x 79 extern int usbdebug; 80 #else 81 #define DPRINTF(x) 82 #define DPRINTFN(n,x) 83 #endif 84 85 static usbd_status usbd_set_config(usbd_device_handle, int); 86 static void usbd_devinfo_vp(usbd_device_handle, char *, char *, int); 87 static int usbd_getnewaddr(usbd_bus_handle bus); 88 static void usbd_free_iface_data(usbd_device_handle dev, int ifcno); 89 static void usbd_kill_pipe(usbd_pipe_handle); 90 static usbd_status usbd_probe_and_attach(device_t parent, 91 usbd_device_handle dev, int port, int addr); 92 93 static u_int32_t usb_cookie_no = 0; 94 95 #ifdef USBVERBOSE 96 typedef u_int16_t usb_vendor_id_t; 97 typedef u_int16_t usb_product_id_t; 98 99 /* 100 * Descriptions of of known vendors and devices ("products"). 101 */ 102 struct usb_knowndev { 103 usb_vendor_id_t vendor; 104 usb_product_id_t product; 105 int flags; 106 char *vendorname, *productname; 107 }; 108 #define USB_KNOWNDEV_NOPROD 0x01 /* match on vendor only */ 109 110 #include "usbdevs_data.h" 111 #endif /* USBVERBOSE */ 112 113 static const char * const usbd_error_strs[] = { 114 "NORMAL_COMPLETION", 115 "IN_PROGRESS", 116 "PENDING_REQUESTS", 117 "NOT_STARTED", 118 "INVAL", 119 "NOMEM", 120 "CANCELLED", 121 "BAD_ADDRESS", 122 "IN_USE", 123 "NO_ADDR", 124 "SET_ADDR_FAILED", 125 "NO_POWER", 126 "TOO_DEEP", 127 "IOERROR", 128 "NOT_CONFIGURED", 129 "TIMEOUT", 130 "SHORT_XFER", 131 "STALLED", 132 "INTERRUPTED", 133 "XXX", 134 }; 135 136 const char * 137 usbd_errstr(usbd_status err) 138 { 139 static char buffer[5]; 140 141 if (err < USBD_ERROR_MAX) { 142 return usbd_error_strs[err]; 143 } else { 144 snprintf(buffer, sizeof buffer, "%d", err); 145 return buffer; 146 } 147 } 148 149 usbd_status 150 usbd_get_string_desc(usbd_device_handle dev, int sindex, int langid, 151 usb_string_descriptor_t *sdesc, int *sizep) 152 { 153 usb_device_request_t req; 154 usbd_status err; 155 int actlen; 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, 2); /* only size byte first */ 162 err = usbd_do_request_flags(dev, &req, sdesc, USBD_SHORT_XFER_OK, 163 &actlen, USBD_DEFAULT_TIMEOUT); 164 if (err) 165 return (err); 166 167 if (actlen < 2) 168 return (USBD_SHORT_XFER); 169 170 USETW(req.wLength, sdesc->bLength); /* the whole string */ 171 err = usbd_do_request_flags(dev, &req, sdesc, USBD_SHORT_XFER_OK, 172 &actlen, USBD_DEFAULT_TIMEOUT); 173 if (err) 174 return (err); 175 176 if (actlen != sdesc->bLength) { 177 DPRINTFN(-1, ("usbd_get_string_desc: expected %d, got %d\n", 178 sdesc->bLength, actlen)); 179 } 180 181 *sizep = actlen; 182 return (USBD_NORMAL_COMPLETION); 183 } 184 185 static void 186 usbd_trim_spaces(char *p) 187 { 188 char *q, *e; 189 190 if (p == NULL) 191 return; 192 q = e = p; 193 while (*q == ' ') /* skip leading spaces */ 194 q++; 195 while ((*p = *q++)) /* copy string */ 196 if (*p++ != ' ') /* remember last non-space */ 197 e = p; 198 *e = 0; /* kill trailing spaces */ 199 } 200 201 static void 202 usbd_devinfo_vp(usbd_device_handle dev, char *v, char *p, int usedev) 203 { 204 usb_device_descriptor_t *udd = &dev->ddesc; 205 char *vendor = 0, *product = 0; 206 #ifdef USBVERBOSE 207 const struct usb_knowndev *kdp; 208 #endif 209 210 if (dev == NULL) { 211 v[0] = p[0] = '\0'; 212 return; 213 } 214 215 if (usedev) { 216 if (usbd_get_string(dev, udd->iManufacturer, v, 217 USB_MAX_STRING_LEN)) 218 vendor = NULL; 219 else 220 vendor = v; 221 usbd_trim_spaces(vendor); 222 if (usbd_get_string(dev, udd->iProduct, p, 223 USB_MAX_STRING_LEN)) 224 product = NULL; 225 else 226 product = p; 227 usbd_trim_spaces(product); 228 if (vendor && !*vendor) 229 vendor = NULL; 230 if (product && !*product) 231 product = NULL; 232 } else { 233 vendor = NULL; 234 product = NULL; 235 } 236 #ifdef USBVERBOSE 237 if (vendor == NULL || product == NULL) { 238 for(kdp = usb_knowndevs; 239 kdp->vendorname != NULL; 240 kdp++) { 241 if (kdp->vendor == UGETW(udd->idVendor) && 242 (kdp->product == UGETW(udd->idProduct) || 243 (kdp->flags & USB_KNOWNDEV_NOPROD) != 0)) 244 break; 245 } 246 if (kdp->vendorname != NULL) { 247 if (vendor == NULL) 248 vendor = kdp->vendorname; 249 if (product == NULL) 250 product = (kdp->flags & USB_KNOWNDEV_NOPROD) == 0 ? 251 kdp->productname : NULL; 252 } 253 } 254 #endif 255 if (vendor != NULL && *vendor) 256 strcpy(v, vendor); 257 else 258 sprintf(v, "vendor 0x%04x", UGETW(udd->idVendor)); 259 if (product != NULL && *product) 260 strcpy(p, product); 261 else 262 sprintf(p, "product 0x%04x", UGETW(udd->idProduct)); 263 } 264 265 int 266 usbd_printBCD(char *cp, int bcd) 267 { 268 return (sprintf(cp, "%x.%02x", bcd >> 8, bcd & 0xff)); 269 } 270 271 void 272 usbd_devinfo(usbd_device_handle dev, int showclass, char *cp) 273 { 274 usb_device_descriptor_t *udd = &dev->ddesc; 275 usbd_interface_handle iface; 276 char vendor[USB_MAX_STRING_LEN]; 277 char product[USB_MAX_STRING_LEN]; 278 int bcdDevice, bcdUSB; 279 usb_interface_descriptor_t *id; 280 281 usbd_devinfo_vp(dev, vendor, product, 1); 282 cp += sprintf(cp, "%s %s", vendor, product); 283 if (showclass & USBD_SHOW_DEVICE_CLASS) 284 cp += sprintf(cp, ", class %d/%d", 285 udd->bDeviceClass, udd->bDeviceSubClass); 286 bcdUSB = UGETW(udd->bcdUSB); 287 bcdDevice = UGETW(udd->bcdDevice); 288 cp += sprintf(cp, ", rev "); 289 cp += usbd_printBCD(cp, bcdUSB); 290 *cp++ = '/'; 291 cp += usbd_printBCD(cp, bcdDevice); 292 cp += sprintf(cp, ", addr %d", dev->address); 293 if (showclass & USBD_SHOW_INTERFACE_CLASS) 294 { 295 /* fetch the interface handle for the first interface */ 296 (void)usbd_device2interface_handle(dev, 0, &iface); 297 id = usbd_get_interface_descriptor(iface); 298 cp += sprintf(cp, ", iclass %d/%d", 299 id->bInterfaceClass, id->bInterfaceSubClass); 300 } 301 *cp = 0; 302 } 303 304 /* Delay for a certain number of ms */ 305 void 306 usb_delay_ms(usbd_bus_handle bus, u_int ms) 307 { 308 /* Wait at least two clock ticks so we know the time has passed. */ 309 if (bus->use_polling || cold) 310 delay((ms+1) * 1000); 311 else 312 pause("usbdly", (ms*hz+999)/1000 + 1); 313 } 314 315 /* Delay given a device handle. */ 316 void 317 usbd_delay_ms(usbd_device_handle dev, u_int ms) 318 { 319 usb_delay_ms(dev->bus, ms); 320 } 321 322 usbd_status 323 usbd_reset_port(usbd_device_handle dev, int port, usb_port_status_t *ps) 324 { 325 usbd_status err; 326 int n; 327 328 err = usbd_set_port_feature(dev, port, UHF_PORT_RESET); 329 DPRINTFN(1,("usbd_reset_port: port %d reset done, error=%s\n", 330 port, usbd_errstr(err))); 331 if (err) 332 return (err); 333 n = 10; 334 do { 335 /* Wait for device to recover from reset. */ 336 usbd_delay_ms(dev, USB_PORT_RESET_DELAY); 337 err = usbd_get_port_status(dev, port, ps); 338 if (err) { 339 DPRINTF(("usbd_reset_port: get status failed %d\n", 340 err)); 341 return (err); 342 } 343 /* If the device disappeared, just give up. */ 344 if (!(UGETW(ps->wPortStatus) & UPS_CURRENT_CONNECT_STATUS)) 345 return (USBD_NORMAL_COMPLETION); 346 } while ((UGETW(ps->wPortChange) & UPS_C_PORT_RESET) == 0 && --n > 0); 347 if (n == 0) 348 return (USBD_TIMEOUT); 349 err = usbd_clear_port_feature(dev, port, UHF_C_PORT_RESET); 350 #ifdef USB_DEBUG 351 if (err) 352 DPRINTF(("usbd_reset_port: clear port feature failed %d\n", 353 err)); 354 #endif 355 356 /* Wait for the device to recover from reset. */ 357 usbd_delay_ms(dev, USB_PORT_RESET_RECOVERY); 358 return (err); 359 } 360 361 usb_interface_descriptor_t * 362 usbd_find_idesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx) 363 { 364 char *p = (char *)cd; 365 char *end = p + UGETW(cd->wTotalLength); 366 usb_interface_descriptor_t *d; 367 int curidx, lastidx, curaidx = 0; 368 369 for (curidx = lastidx = -1; p < end; ) { 370 d = (usb_interface_descriptor_t *)p; 371 DPRINTFN(4,("usbd_find_idesc: idx=%d(%d) altidx=%d(%d) len=%d " 372 "type=%d\n", 373 ifaceidx, curidx, altidx, curaidx, 374 d->bLength, d->bDescriptorType)); 375 if (d->bLength == 0) /* bad descriptor */ 376 break; 377 p += d->bLength; 378 if (p <= end && d->bDescriptorType == UDESC_INTERFACE) { 379 if (d->bInterfaceNumber != lastidx) { 380 lastidx = d->bInterfaceNumber; 381 curidx++; 382 curaidx = 0; 383 } else 384 curaidx++; 385 if (ifaceidx == curidx && altidx == curaidx) 386 return (d); 387 } 388 } 389 return (NULL); 390 } 391 392 usb_endpoint_descriptor_t * 393 usbd_find_edesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx, 394 int endptidx) 395 { 396 char *p = (char *)cd; 397 char *end = p + UGETW(cd->wTotalLength); 398 usb_interface_descriptor_t *d; 399 usb_endpoint_descriptor_t *e; 400 int curidx; 401 402 d = usbd_find_idesc(cd, ifaceidx, altidx); 403 if (d == NULL) 404 return (NULL); 405 if (endptidx >= d->bNumEndpoints) /* quick exit */ 406 return (NULL); 407 408 curidx = -1; 409 for (p = (char *)d + d->bLength; p < end; ) { 410 e = (usb_endpoint_descriptor_t *)p; 411 if (e->bLength == 0) /* bad descriptor */ 412 break; 413 p += e->bLength; 414 if (p <= end && e->bDescriptorType == UDESC_INTERFACE) 415 return (NULL); 416 if (p <= end && e->bDescriptorType == UDESC_ENDPOINT) { 417 curidx++; 418 if (curidx == endptidx) 419 return (e); 420 } 421 } 422 return (NULL); 423 } 424 425 usbd_status 426 usbd_fill_iface_data(usbd_device_handle dev, int ifaceidx, int altidx) 427 { 428 usbd_interface_handle ifc = &dev->ifaces[ifaceidx]; 429 usb_interface_descriptor_t *idesc; 430 char *p, *end; 431 int endpt, nendpt; 432 433 DPRINTFN(4,("usbd_fill_iface_data: ifaceidx=%d altidx=%d\n", 434 ifaceidx, altidx)); 435 idesc = usbd_find_idesc(dev->cdesc, ifaceidx, altidx); 436 if (idesc == NULL) 437 return (USBD_INVAL); 438 ifc->device = dev; 439 ifc->idesc = idesc; 440 ifc->index = ifaceidx; 441 ifc->altindex = altidx; 442 nendpt = ifc->idesc->bNumEndpoints; 443 DPRINTFN(4,("usbd_fill_iface_data: found idesc nendpt=%d\n", nendpt)); 444 if (nendpt != 0) { 445 ifc->endpoints = malloc(nendpt * sizeof(struct usbd_endpoint), 446 M_USB, M_NOWAIT); 447 if (ifc->endpoints == NULL) 448 return (USBD_NOMEM); 449 } else 450 ifc->endpoints = NULL; 451 ifc->priv = NULL; 452 p = (char *)ifc->idesc + ifc->idesc->bLength; 453 end = (char *)dev->cdesc + UGETW(dev->cdesc->wTotalLength); 454 #define ed ((usb_endpoint_descriptor_t *)p) 455 for (endpt = 0; endpt < nendpt; endpt++) { 456 DPRINTFN(10,("usbd_fill_iface_data: endpt=%d\n", endpt)); 457 for (; p < end; p += ed->bLength) { 458 DPRINTFN(10,("usbd_fill_iface_data: p=%p end=%p " 459 "len=%d type=%d\n", 460 p, end, ed->bLength, ed->bDescriptorType)); 461 if (p + ed->bLength <= end && ed->bLength != 0 && 462 ed->bDescriptorType == UDESC_ENDPOINT) 463 goto found; 464 if (ed->bLength == 0 || 465 ed->bDescriptorType == UDESC_INTERFACE) 466 break; 467 } 468 /* passed end, or bad desc */ 469 printf("usbd_fill_iface_data: bad descriptor(s): %s\n", 470 ed->bLength == 0 ? "0 length" : 471 ed->bDescriptorType == UDESC_INTERFACE ? "iface desc": 472 "out of data"); 473 goto bad; 474 found: 475 ifc->endpoints[endpt].edesc = ed; 476 if (dev->speed == USB_SPEED_HIGH) { 477 u_int mps; 478 /* Control and bulk endpoints have max packet limits. */ 479 switch (UE_GET_XFERTYPE(ed->bmAttributes)) { 480 case UE_CONTROL: 481 mps = USB_2_MAX_CTRL_PACKET; 482 goto check; 483 case UE_BULK: 484 mps = USB_2_MAX_BULK_PACKET; 485 check: 486 if (UGETW(ed->wMaxPacketSize) != mps) { 487 USETW(ed->wMaxPacketSize, mps); 488 #ifdef DIAGNOSTIC 489 printf("usbd_fill_iface_data: bad max " 490 "packet size\n"); 491 #endif 492 } 493 break; 494 default: 495 break; 496 } 497 } 498 ifc->endpoints[endpt].refcnt = 0; 499 ifc->endpoints[endpt].savedtoggle = 0; 500 p += ed->bLength; 501 } 502 #undef ed 503 LIST_INIT(&ifc->pipes); 504 return (USBD_NORMAL_COMPLETION); 505 506 bad: 507 if (ifc->endpoints != NULL) { 508 free(ifc->endpoints, M_USB); 509 ifc->endpoints = NULL; 510 } 511 return (USBD_INVAL); 512 } 513 514 void 515 usbd_free_iface_data(usbd_device_handle dev, int ifcno) 516 { 517 usbd_interface_handle ifc = &dev->ifaces[ifcno]; 518 if (ifc->endpoints) 519 free(ifc->endpoints, M_USB); 520 } 521 522 static usbd_status 523 usbd_set_config(usbd_device_handle dev, int conf) 524 { 525 usb_device_request_t req; 526 527 req.bmRequestType = UT_WRITE_DEVICE; 528 req.bRequest = UR_SET_CONFIG; 529 USETW(req.wValue, conf); 530 USETW(req.wIndex, 0); 531 USETW(req.wLength, 0); 532 return (usbd_do_request(dev, &req, 0)); 533 } 534 535 usbd_status 536 usbd_set_config_no(usbd_device_handle dev, int no, int msg) 537 { 538 int index; 539 usb_config_descriptor_t cd; 540 usbd_status err; 541 542 if (no == USB_UNCONFIG_NO) 543 return (usbd_set_config_index(dev, USB_UNCONFIG_INDEX, msg)); 544 545 DPRINTFN(5,("usbd_set_config_no: %d\n", no)); 546 /* Figure out what config index to use. */ 547 for (index = 0; index < dev->ddesc.bNumConfigurations; index++) { 548 err = usbd_get_config_desc(dev, index, &cd); 549 if (err) 550 return (err); 551 if (cd.bConfigurationValue == no) 552 return (usbd_set_config_index(dev, index, msg)); 553 } 554 return (USBD_INVAL); 555 } 556 557 usbd_status 558 usbd_set_config_index(usbd_device_handle dev, int index, int msg) 559 { 560 usb_status_t ds; 561 usb_config_descriptor_t cd, *cdp; 562 usbd_status err; 563 int i, ifcidx, nifc, len, selfpowered, power; 564 565 DPRINTFN(5,("usbd_set_config_index: dev=%p index=%d\n", dev, index)); 566 567 if (dev->config != USB_UNCONFIG_NO) { 568 nifc = dev->cdesc->bNumInterface; 569 570 /* Check that all interfaces are idle */ 571 for (ifcidx = 0; ifcidx < nifc; ifcidx++) { 572 if (LIST_EMPTY(&dev->ifaces[ifcidx].pipes)) 573 continue; 574 DPRINTF(("usbd_set_config_index: open pipes exist\n")); 575 return (USBD_IN_USE); 576 } 577 578 DPRINTF(("usbd_set_config_index: free old config\n")); 579 /* Free all configuration data structures. */ 580 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 581 usbd_free_iface_data(dev, ifcidx); 582 free(dev->ifaces, M_USB); 583 free(dev->cdesc, M_USB); 584 dev->ifaces = NULL; 585 dev->cdesc = NULL; 586 dev->config = USB_UNCONFIG_NO; 587 } 588 589 if (index == USB_UNCONFIG_INDEX) { 590 /* We are unconfiguring the device, so leave unallocated. */ 591 DPRINTF(("usbd_set_config_index: set config 0\n")); 592 err = usbd_set_config(dev, USB_UNCONFIG_NO); 593 if (err) 594 DPRINTF(("usbd_set_config_index: setting config=0 " 595 "failed, error=%s\n", usbd_errstr(err))); 596 return (err); 597 } 598 599 /* Get the short descriptor. */ 600 err = usbd_get_config_desc(dev, index, &cd); 601 if (err) 602 return (err); 603 len = UGETW(cd.wTotalLength); 604 cdp = malloc(len, M_USB, M_NOWAIT); 605 if (cdp == NULL) 606 return (USBD_NOMEM); 607 608 /* Get the full descriptor. Try a few times for slow devices. */ 609 for (i = 0; i < 3; i++) { 610 err = usbd_get_desc(dev, UDESC_CONFIG, index, len, cdp); 611 if (!err) 612 break; 613 usbd_delay_ms(dev, 200); 614 } 615 if (err) 616 goto bad; 617 if (cdp->bDescriptorType != UDESC_CONFIG) { 618 DPRINTFN(-1,("usbd_set_config_index: bad desc %d\n", 619 cdp->bDescriptorType)); 620 err = USBD_INVAL; 621 goto bad; 622 } 623 624 /* Figure out if the device is self or bus powered. */ 625 selfpowered = 0; 626 if (!(dev->quirks->uq_flags & UQ_BUS_POWERED) && 627 (cdp->bmAttributes & UC_SELF_POWERED)) { 628 /* May be self powered. */ 629 if (cdp->bmAttributes & UC_BUS_POWERED) { 630 /* Must ask device. */ 631 if (dev->quirks->uq_flags & UQ_POWER_CLAIM) { 632 /* 633 * Hub claims to be self powered, but isn't. 634 * It seems that the power status can be 635 * determined by the hub characteristics. 636 */ 637 usb_hub_descriptor_t hd; 638 usb_device_request_t req; 639 req.bmRequestType = UT_READ_CLASS_DEVICE; 640 req.bRequest = UR_GET_DESCRIPTOR; 641 USETW(req.wValue, 0); 642 USETW(req.wIndex, 0); 643 USETW(req.wLength, USB_HUB_DESCRIPTOR_SIZE); 644 err = usbd_do_request(dev, &req, &hd); 645 if (!err && 646 (UGETW(hd.wHubCharacteristics) & 647 UHD_PWR_INDIVIDUAL)) 648 selfpowered = 1; 649 DPRINTF(("usbd_set_config_index: charac=0x%04x" 650 ", error=%s\n", 651 UGETW(hd.wHubCharacteristics), 652 usbd_errstr(err))); 653 } else { 654 err = usbd_get_device_status(dev, &ds); 655 if (!err && 656 (UGETW(ds.wStatus) & UDS_SELF_POWERED)) 657 selfpowered = 1; 658 DPRINTF(("usbd_set_config_index: status=0x%04x" 659 ", error=%s\n", 660 UGETW(ds.wStatus), usbd_errstr(err))); 661 } 662 } else 663 selfpowered = 1; 664 } 665 DPRINTF(("usbd_set_config_index: (addr %d) cno=%d attr=0x%02x, " 666 "selfpowered=%d, power=%d\n", 667 cdp->bConfigurationValue, dev->address, cdp->bmAttributes, 668 selfpowered, cdp->bMaxPower * 2)); 669 670 /* Check if we have enough power. */ 671 #ifdef USB_DEBUG 672 if (dev->powersrc == NULL) { 673 DPRINTF(("usbd_set_config_index: No power source?\n")); 674 return (USBD_IOERROR); 675 } 676 #endif 677 power = cdp->bMaxPower * 2; 678 if (power > dev->powersrc->power) { 679 DPRINTF(("power exceeded %d %d\n", power,dev->powersrc->power)); 680 /* XXX print nicer message. */ 681 if (msg) 682 device_printf(dev->bus->bdev, 683 "device addr %d (config %d) exceeds " 684 "power budget, %d mA > %d mA\n", 685 dev->address, cdp->bConfigurationValue, 686 power, dev->powersrc->power); 687 err = USBD_NO_POWER; 688 goto bad; 689 } 690 dev->power = power; 691 dev->self_powered = selfpowered; 692 693 /* Set the actual configuration value. */ 694 DPRINTF(("usbd_set_config_index: set config %d\n", 695 cdp->bConfigurationValue)); 696 err = usbd_set_config(dev, cdp->bConfigurationValue); 697 if (err) { 698 DPRINTF(("usbd_set_config_index: setting config=%d failed, " 699 "error=%s\n", 700 cdp->bConfigurationValue, usbd_errstr(err))); 701 goto bad; 702 } 703 704 /* Allocate and fill interface data. */ 705 nifc = cdp->bNumInterface; 706 dev->ifaces = malloc(nifc * sizeof(struct usbd_interface), 707 M_USB, M_NOWAIT); 708 if (dev->ifaces == NULL) { 709 err = USBD_NOMEM; 710 goto bad; 711 } 712 DPRINTFN(5,("usbd_set_config_index: dev=%p cdesc=%p\n", dev, cdp)); 713 dev->cdesc = cdp; 714 dev->config = cdp->bConfigurationValue; 715 for (ifcidx = 0; ifcidx < nifc; ifcidx++) { 716 err = usbd_fill_iface_data(dev, ifcidx, 0); 717 if (err) { 718 while (--ifcidx >= 0) 719 usbd_free_iface_data(dev, ifcidx); 720 goto bad; 721 } 722 } 723 724 return (USBD_NORMAL_COMPLETION); 725 726 bad: 727 free(cdp, M_USB); 728 return (err); 729 } 730 731 /* XXX add function for alternate settings */ 732 733 usbd_status 734 usbd_setup_pipe(usbd_device_handle dev, usbd_interface_handle iface, 735 struct usbd_endpoint *ep, int ival, usbd_pipe_handle *pipe) 736 { 737 usbd_pipe_handle p; 738 usbd_status err; 739 740 DPRINTFN(1,("usbd_setup_pipe: dev=%p iface=%p ep=%p pipe=%p\n", 741 dev, iface, ep, pipe)); 742 p = malloc(dev->bus->pipe_size, M_USB, M_NOWAIT); 743 if (p == NULL) 744 return (USBD_NOMEM); 745 p->device = dev; 746 p->iface = iface; 747 p->endpoint = ep; 748 ep->refcnt++; 749 p->refcnt = 1; 750 p->intrxfer = 0; 751 p->running = 0; 752 p->aborting = 0; 753 p->repeat = 0; 754 p->interval = ival; 755 STAILQ_INIT(&p->queue); 756 err = dev->bus->methods->open_pipe(p); 757 if (err) { 758 DPRINTFN(-1,("usbd_setup_pipe: endpoint=0x%x failed, error=" 759 "%s\n", 760 ep->edesc->bEndpointAddress, usbd_errstr(err))); 761 free(p, M_USB); 762 return (err); 763 } 764 765 if (dev->quirks->uq_flags & UQ_OPEN_CLEARSTALL) { 766 /* Clear any stall and make sure DATA0 toggle will be used next. */ 767 if (UE_GET_ADDR(ep->edesc->bEndpointAddress) != USB_CONTROL_ENDPOINT) { 768 err = usbd_clear_endpoint_stall(p); 769 if (err && err != USBD_STALLED && err != USBD_TIMEOUT) { 770 printf("usbd_setup_pipe: failed to start " 771 "endpoint, %s\n", usbd_errstr(err)); 772 return (err); 773 } 774 } 775 } 776 777 *pipe = p; 778 return (USBD_NORMAL_COMPLETION); 779 } 780 781 /* Abort the device control pipe. */ 782 void 783 usbd_kill_pipe(usbd_pipe_handle pipe) 784 { 785 usbd_abort_pipe(pipe); 786 pipe->methods->close(pipe); 787 pipe->endpoint->refcnt--; 788 free(pipe, M_USB); 789 } 790 791 int 792 usbd_getnewaddr(usbd_bus_handle bus) 793 { 794 int addr; 795 796 for (addr = 1; addr < USB_MAX_DEVICES; addr++) 797 if (bus->devices[addr] == 0) 798 return (addr); 799 return (-1); 800 } 801 802 803 usbd_status 804 usbd_probe_and_attach(device_t parent, usbd_device_handle dev, 805 int port, int addr) 806 { 807 struct usb_attach_arg uaa; 808 usb_device_descriptor_t *dd = &dev->ddesc; 809 int found, i, confi, nifaces; 810 usbd_status err; 811 device_t *tmpdv; 812 usbd_interface_handle ifaces[256]; /* 256 is the absolute max */ 813 char *devinfo; 814 815 /* XXX FreeBSD may leak resources on failure cases -- fixme */ 816 device_t bdev; 817 struct usb_attach_arg *uaap; 818 819 devinfo = malloc(1024, M_USB, M_NOWAIT); 820 if (devinfo == NULL) { 821 device_printf(parent, "Can't allocate memory for probe string\n"); 822 return (USBD_NOMEM); 823 } 824 bdev = device_add_child(parent, NULL, -1); 825 if (!bdev) { 826 free(devinfo, M_USB); 827 device_printf(parent, "Device creation failed\n"); 828 return (USBD_INVAL); 829 } 830 uaap = malloc(sizeof(uaa), M_USB, M_NOWAIT); 831 if (uaap == NULL) { 832 free(devinfo, M_USB); 833 return (USBD_INVAL); 834 } 835 device_set_ivars(bdev, uaap); 836 uaa.device = dev; 837 uaa.iface = NULL; 838 uaa.ifaces = NULL; 839 uaa.nifaces = 0; 840 uaa.usegeneric = 0; 841 uaa.port = port; 842 uaa.configno = UHUB_UNK_CONFIGURATION; 843 uaa.ifaceno = UHUB_UNK_INTERFACE; 844 uaa.vendor = UGETW(dd->idVendor); 845 uaa.product = UGETW(dd->idProduct); 846 uaa.release = UGETW(dd->bcdDevice); 847 uaa.matchlvl = 0; 848 849 /* First try with device specific drivers. */ 850 DPRINTF(("usbd_probe_and_attach: trying device specific drivers\n")); 851 852 dev->ifacenums = NULL; 853 dev->subdevs = malloc(2 * sizeof(device_t), M_USB, M_NOWAIT); 854 if (dev->subdevs == NULL) { 855 free(devinfo, M_USB); 856 return (USBD_NOMEM); 857 } 858 dev->subdevs[0] = bdev; 859 dev->subdevs[1] = 0; 860 *uaap = uaa; 861 usbd_devinfo(dev, 1, devinfo); 862 device_set_desc_copy(bdev, devinfo); 863 if (device_probe_and_attach(bdev) == 0) { 864 free(devinfo, M_USB); 865 return (USBD_NORMAL_COMPLETION); 866 } 867 868 /* 869 * Free subdevs so we can reallocate it larger for the number of 870 * interfaces 871 */ 872 tmpdv = dev->subdevs; 873 dev->subdevs = NULL; 874 free(tmpdv, M_USB); 875 DPRINTF(("usbd_probe_and_attach: no device specific driver found\n")); 876 877 DPRINTF(("usbd_probe_and_attach: looping over %d configurations\n", 878 dd->bNumConfigurations)); 879 /* Next try with interface drivers. */ 880 for (confi = 0; confi < dd->bNumConfigurations; confi++) { 881 DPRINTFN(1,("usbd_probe_and_attach: trying config idx=%d\n", 882 confi)); 883 err = usbd_set_config_index(dev, confi, 1); 884 if (err) { 885 #ifdef USB_DEBUG 886 DPRINTF(("%s: port %d, set config at addr %d failed, " 887 "error=%s\n", device_get_nameunit(parent), port, 888 addr, usbd_errstr(err))); 889 #else 890 printf("%s: port %d, set config at addr %d failed\n", 891 device_get_nameunit(parent), port, addr); 892 #endif 893 free(devinfo, M_USB); 894 return (err); 895 } 896 nifaces = dev->cdesc->bNumInterface; 897 uaa.configno = dev->cdesc->bConfigurationValue; 898 for (i = 0; i < nifaces; i++) 899 ifaces[i] = &dev->ifaces[i]; 900 uaa.ifaces = ifaces; 901 uaa.nifaces = nifaces; 902 dev->subdevs = malloc((nifaces+1) * sizeof(device_t), M_USB,M_NOWAIT); 903 if (dev->subdevs == NULL) { 904 free(devinfo, M_USB); 905 return (USBD_NOMEM); 906 } 907 dev->ifacenums = malloc((nifaces) * sizeof(*dev->ifacenums), 908 M_USB,M_NOWAIT); 909 if (dev->ifacenums == NULL) { 910 free(devinfo, M_USB); 911 return (USBD_NOMEM); 912 } 913 914 found = 0; 915 for (i = 0; i < nifaces; i++) { 916 if (ifaces[i] == NULL) 917 continue; /* interface already claimed */ 918 uaa.iface = ifaces[i]; 919 uaa.ifaceno = ifaces[i]->idesc->bInterfaceNumber; 920 dev->subdevs[found] = bdev; 921 dev->subdevs[found + 1] = 0; 922 dev->ifacenums[found] = i; 923 *uaap = uaa; 924 usbd_devinfo(dev, 1, devinfo); 925 device_set_desc_copy(bdev, devinfo); 926 if (device_probe_and_attach(bdev) == 0) { 927 ifaces[i] = 0; /* consumed */ 928 found++; 929 /* create another child for the next iface */ 930 bdev = device_add_child(parent, NULL, -1); 931 if (!bdev) { 932 device_printf(parent, 933 "Device add failed\n"); 934 free(devinfo, M_USB); 935 return (USBD_NORMAL_COMPLETION); 936 } 937 uaap = malloc(sizeof(uaa), M_USB, M_NOWAIT); 938 if (uaap == NULL) { 939 free(devinfo, M_USB); 940 return (USBD_NOMEM); 941 } 942 device_set_ivars(bdev, uaap); 943 } else { 944 dev->subdevs[found] = 0; 945 } 946 } 947 if (found != 0) { 948 /* remove the last created child. It is unused */ 949 free(uaap, M_USB); 950 free(devinfo, M_USB); 951 device_delete_child(parent, bdev); 952 /* free(uaap, M_USB); */ /* May be needed? xxx */ 953 return (USBD_NORMAL_COMPLETION); 954 } 955 tmpdv = dev->subdevs; 956 dev->subdevs = NULL; 957 free(tmpdv, M_USB); 958 free(dev->ifacenums, M_USB); 959 dev->ifacenums = NULL; 960 } 961 /* No interfaces were attached in any of the configurations. */ 962 963 if (dd->bNumConfigurations > 1) /* don't change if only 1 config */ 964 usbd_set_config_index(dev, 0, 0); 965 966 DPRINTF(("usbd_probe_and_attach: no interface drivers found\n")); 967 968 /* Finally try the generic driver. */ 969 uaa.iface = NULL; 970 uaa.usegeneric = 1; 971 uaa.configno = UHUB_UNK_CONFIGURATION; 972 uaa.ifaceno = UHUB_UNK_INTERFACE; 973 dev->subdevs = malloc(2 * sizeof(device_t), M_USB, M_NOWAIT); 974 if (dev->subdevs == 0) { 975 free(devinfo, M_USB); 976 return (USBD_NOMEM); 977 } 978 dev->subdevs[0] = bdev; 979 dev->subdevs[1] = 0; 980 *uaap = uaa; 981 usbd_devinfo(dev, 1, devinfo); 982 device_set_desc_copy(bdev, devinfo); 983 free(devinfo, M_USB); 984 if (device_probe_and_attach(bdev) == 0) 985 return (USBD_NORMAL_COMPLETION); 986 987 /* 988 * The generic attach failed, but leave the device as it is. 989 * We just did not find any drivers, that's all. The device is 990 * fully operational and not harming anyone. 991 */ 992 DPRINTF(("usbd_probe_and_attach: generic attach failed\n")); 993 return (USBD_NORMAL_COMPLETION); 994 } 995 996 997 /* 998 * Called when a new device has been put in the powered state, 999 * but not yet in the addressed state. 1000 * Get initial descriptor, set the address, get full descriptor, 1001 * and attach a driver. 1002 */ 1003 usbd_status 1004 usbd_new_device(device_t parent, usbd_bus_handle bus, int depth, 1005 int speed, int port, struct usbd_port *up) 1006 { 1007 usbd_device_handle dev, adev; 1008 struct usbd_device *hub; 1009 usb_device_descriptor_t *dd; 1010 usb_port_status_t ps; 1011 usbd_status err; 1012 int addr; 1013 int i; 1014 int p; 1015 1016 DPRINTF(("usbd_new_device bus=%p port=%d depth=%d speed=%d\n", 1017 bus, port, depth, speed)); 1018 addr = usbd_getnewaddr(bus); 1019 if (addr < 0) { 1020 device_printf(bus->bdev, "No free USB addresses\n"); 1021 return (USBD_NO_ADDR); 1022 } 1023 1024 dev = malloc(sizeof *dev, M_USB, M_NOWAIT|M_ZERO); 1025 if (dev == NULL) 1026 return (USBD_NOMEM); 1027 1028 dev->bus = bus; 1029 1030 /* Set up default endpoint handle. */ 1031 dev->def_ep.edesc = &dev->def_ep_desc; 1032 1033 /* Set up default endpoint descriptor. */ 1034 dev->def_ep_desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 1035 dev->def_ep_desc.bDescriptorType = UDESC_ENDPOINT; 1036 dev->def_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 1037 dev->def_ep_desc.bmAttributes = UE_CONTROL; 1038 USETW(dev->def_ep_desc.wMaxPacketSize, USB_MAX_IPACKET); 1039 dev->def_ep_desc.bInterval = 0; 1040 1041 dev->quirks = &usbd_no_quirk; 1042 dev->address = USB_START_ADDR; 1043 dev->ddesc.bMaxPacketSize = 0; 1044 dev->depth = depth; 1045 dev->powersrc = up; 1046 dev->myhub = up->parent; 1047 1048 up->device = dev; 1049 1050 if (up->parent && speed > up->parent->speed) { 1051 #ifdef USB_DEBUG 1052 printf("%s: maxium speed of attached " 1053 "device, %d, is higher than speed " 1054 "of parent HUB, %d.\n", 1055 __FUNCTION__, speed, up->parent->speed); 1056 #endif 1057 /* 1058 * Reduce the speed, otherwise we won't setup the 1059 * proper transfer methods. 1060 */ 1061 speed = up->parent->speed; 1062 } 1063 1064 /* Locate port on upstream high speed hub */ 1065 for (adev = dev, hub = up->parent; 1066 hub != NULL && hub->speed != USB_SPEED_HIGH; 1067 adev = hub, hub = hub->myhub) 1068 ; 1069 if (hub) { 1070 for (p = 0; p < hub->hub->hubdesc.bNbrPorts; p++) { 1071 if (hub->hub->ports[p].device == adev) { 1072 dev->myhsport = &hub->hub->ports[p]; 1073 goto found; 1074 } 1075 } 1076 panic("usbd_new_device: cannot find HS port\n"); 1077 found: 1078 DPRINTFN(1,("usbd_new_device: high speed port %d\n", p)); 1079 } else { 1080 dev->myhsport = NULL; 1081 } 1082 dev->speed = speed; 1083 dev->langid = USBD_NOLANG; 1084 dev->cookie.cookie = ++usb_cookie_no; 1085 1086 /* Establish the default pipe. */ 1087 err = usbd_setup_pipe(dev, 0, &dev->def_ep, USBD_DEFAULT_INTERVAL, 1088 &dev->default_pipe); 1089 if (err) { 1090 usbd_remove_device(dev, up); 1091 return (err); 1092 } 1093 1094 dd = &dev->ddesc; 1095 /* Try a few times in case the device is slow (i.e. outside specs.) */ 1096 DPRINTFN(5,("usbd_new_device: setting device address=%d\n", addr)); 1097 for (i = 0; i < 15; i++) { 1098 /* Get the first 8 bytes of the device descriptor. */ 1099 err = usbd_get_desc(dev, UDESC_DEVICE, 0, USB_MAX_IPACKET, dd); 1100 if (!err) 1101 break; 1102 usbd_delay_ms(dev, 200); 1103 if ((i & 3) == 3) { 1104 DPRINTFN(-1,("usb_new_device: set address %d " 1105 "failed - trying a port reset\n", addr)); 1106 usbd_reset_port(up->parent, port, &ps); 1107 } 1108 1109 } 1110 if (err) { 1111 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting first desc " 1112 "failed\n", addr)); 1113 usbd_remove_device(dev, up); 1114 return (err); 1115 } 1116 1117 if (speed == USB_SPEED_HIGH) { 1118 /* Max packet size must be 64 (sec 5.5.3). */ 1119 if (dd->bMaxPacketSize != USB_2_MAX_CTRL_PACKET) { 1120 #ifdef DIAGNOSTIC 1121 printf("usbd_new_device: addr=%d bad max packet size\n", 1122 addr); 1123 #endif 1124 dd->bMaxPacketSize = USB_2_MAX_CTRL_PACKET; 1125 } 1126 } 1127 1128 DPRINTF(("usbd_new_device: adding unit addr=%d, rev=%02x, class=%d, " 1129 "subclass=%d, protocol=%d, maxpacket=%d, len=%d, speed=%d\n", 1130 addr,UGETW(dd->bcdUSB), dd->bDeviceClass, dd->bDeviceSubClass, 1131 dd->bDeviceProtocol, dd->bMaxPacketSize, dd->bLength, 1132 dev->speed)); 1133 1134 if (dd->bDescriptorType != UDESC_DEVICE) { 1135 /* Illegal device descriptor */ 1136 DPRINTFN(-1,("usbd_new_device: illegal descriptor %d\n", 1137 dd->bDescriptorType)); 1138 usbd_remove_device(dev, up); 1139 return (USBD_INVAL); 1140 } 1141 1142 if (dd->bLength < USB_DEVICE_DESCRIPTOR_SIZE) { 1143 DPRINTFN(-1,("usbd_new_device: bad length %d\n", dd->bLength)); 1144 usbd_remove_device(dev, up); 1145 return (USBD_INVAL); 1146 } 1147 1148 USETW(dev->def_ep_desc.wMaxPacketSize, dd->bMaxPacketSize); 1149 1150 /* Re-establish the default pipe with the new max packet size. */ 1151 usbd_kill_pipe(dev->default_pipe); 1152 err = usbd_setup_pipe(dev, 0, &dev->def_ep, USBD_DEFAULT_INTERVAL, 1153 &dev->default_pipe); 1154 if (err) { 1155 usbd_remove_device(dev, up); 1156 return (err); 1157 } 1158 1159 err = usbd_reload_device_desc(dev); 1160 if (err) { 1161 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting full desc " 1162 "failed\n", addr)); 1163 usbd_remove_device(dev, up); 1164 return (err); 1165 } 1166 1167 /* Set the address */ 1168 DPRINTFN(5,("usbd_new_device: setting device address=%d\n", addr)); 1169 err = usbd_set_address(dev, addr); 1170 if (err) { 1171 DPRINTFN(-1,("usb_new_device: set address %d failed\n", addr)); 1172 err = USBD_SET_ADDR_FAILED; 1173 usbd_remove_device(dev, up); 1174 return (err); 1175 } 1176 1177 /* Allow device time to set new address */ 1178 usbd_delay_ms(dev, USB_SET_ADDRESS_SETTLE); 1179 dev->address = addr; /* New device address now */ 1180 bus->devices[addr] = dev; 1181 1182 /* Re-establish the default pipe with the new address. */ 1183 usbd_kill_pipe(dev->default_pipe); 1184 err = usbd_setup_pipe(dev, 0, &dev->def_ep, USBD_DEFAULT_INTERVAL, 1185 &dev->default_pipe); 1186 if (err) { 1187 usbd_remove_device(dev, up); 1188 return (err); 1189 } 1190 1191 /* Assume 100mA bus powered for now. Changed when configured. */ 1192 dev->power = USB_MIN_POWER; 1193 dev->self_powered = 0; 1194 1195 DPRINTF(("usbd_new_device: new dev (addr %d), dev=%p, parent=%p\n", 1196 addr, dev, parent)); 1197 1198 err = usbd_probe_and_attach(parent, dev, port, addr); 1199 if (err) { 1200 usbd_remove_device(dev, up); 1201 return (err); 1202 } 1203 1204 usbd_add_dev_event(USB_EVENT_DEVICE_ATTACH, dev); 1205 1206 return (USBD_NORMAL_COMPLETION); 1207 } 1208 1209 usbd_status 1210 usbd_reload_device_desc(usbd_device_handle dev) 1211 { 1212 usbd_status err; 1213 int i; 1214 1215 /* Get the full device descriptor. */ 1216 for (i = 0; i < 3; ++i) { 1217 err = usbd_get_device_desc(dev, &dev->ddesc); 1218 if (!err) 1219 break; 1220 usbd_delay_ms(dev, 200); 1221 } 1222 if (err) 1223 return (err); 1224 1225 /* Figure out what's wrong with this device. */ 1226 dev->quirks = usbd_find_quirk(&dev->ddesc); 1227 1228 return (USBD_NORMAL_COMPLETION); 1229 } 1230 1231 void 1232 usbd_remove_device(usbd_device_handle dev, struct usbd_port *up) 1233 { 1234 DPRINTF(("usbd_remove_device: %p\n", dev)); 1235 1236 if (dev->default_pipe != NULL) 1237 usbd_kill_pipe(dev->default_pipe); 1238 up->device = NULL; 1239 dev->bus->devices[dev->address] = NULL; 1240 1241 free(dev, M_USB); 1242 } 1243 1244 void 1245 usbd_fill_deviceinfo(usbd_device_handle dev, struct usb_device_info *di, 1246 int usedev) 1247 { 1248 struct usbd_port *p; 1249 int i, err, s; 1250 1251 di->udi_bus = device_get_unit(dev->bus->bdev); 1252 di->udi_addr = dev->address; 1253 di->udi_cookie = dev->cookie; 1254 usbd_devinfo_vp(dev, di->udi_vendor, di->udi_product, usedev); 1255 usbd_printBCD(di->udi_release, UGETW(dev->ddesc.bcdDevice)); 1256 di->udi_vendorNo = UGETW(dev->ddesc.idVendor); 1257 di->udi_productNo = UGETW(dev->ddesc.idProduct); 1258 di->udi_releaseNo = UGETW(dev->ddesc.bcdDevice); 1259 di->udi_class = dev->ddesc.bDeviceClass; 1260 di->udi_subclass = dev->ddesc.bDeviceSubClass; 1261 di->udi_protocol = dev->ddesc.bDeviceProtocol; 1262 di->udi_config = dev->config; 1263 di->udi_power = dev->self_powered ? 0 : dev->power; 1264 di->udi_speed = dev->speed; 1265 1266 if (dev->subdevs != NULL) { 1267 for (i = 0; dev->subdevs[i] && i < USB_MAX_DEVNAMES; i++) { 1268 if (device_is_attached(dev->subdevs[i])) 1269 strlcpy(di->udi_devnames[i], 1270 device_get_nameunit(dev->subdevs[i]), 1271 USB_MAX_DEVNAMELEN); 1272 else 1273 di->udi_devnames[i][0] = 0; 1274 } 1275 } else { 1276 i = 0; 1277 } 1278 for (/*i is set */; i < USB_MAX_DEVNAMES; i++) 1279 di->udi_devnames[i][0] = 0; /* empty */ 1280 1281 if (dev->hub) { 1282 for (i = 0; 1283 i < sizeof(di->udi_ports) / sizeof(di->udi_ports[0]) && 1284 i < dev->hub->hubdesc.bNbrPorts; 1285 i++) { 1286 p = &dev->hub->ports[i]; 1287 if (p->device) 1288 err = p->device->address; 1289 else { 1290 s = UGETW(p->status.wPortStatus); 1291 if (s & UPS_PORT_ENABLED) 1292 err = USB_PORT_ENABLED; 1293 else if (s & UPS_SUSPEND) 1294 err = USB_PORT_SUSPENDED; 1295 else if (s & UPS_PORT_POWER) 1296 err = USB_PORT_POWERED; 1297 else 1298 err = USB_PORT_DISABLED; 1299 } 1300 di->udi_ports[i] = err; 1301 } 1302 di->udi_nports = dev->hub->hubdesc.bNbrPorts; 1303 } else 1304 di->udi_nports = 0; 1305 } 1306 1307 void 1308 usb_free_device(usbd_device_handle dev) 1309 { 1310 int ifcidx, nifc; 1311 1312 if (dev->default_pipe != NULL) 1313 usbd_kill_pipe(dev->default_pipe); 1314 if (dev->ifaces != NULL) { 1315 nifc = dev->cdesc->bNumInterface; 1316 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 1317 usbd_free_iface_data(dev, ifcidx); 1318 free(dev->ifaces, M_USB); 1319 } 1320 if (dev->cdesc != NULL) 1321 free(dev->cdesc, M_USB); 1322 if (dev->subdevs != NULL) 1323 free(dev->subdevs, M_USB); 1324 if (dev->ifacenums != NULL) 1325 free(dev->ifacenums, M_USB); 1326 free(dev, M_USB); 1327 } 1328 1329 /* 1330 * The general mechanism for detaching drivers works as follows: Each 1331 * driver is responsible for maintaining a reference count on the 1332 * number of outstanding references to its softc (e.g. from 1333 * processing hanging in a read or write). The detach method of the 1334 * driver decrements this counter and flags in the softc that the 1335 * driver is dying and then wakes any sleepers. It then sleeps on the 1336 * softc. Each place that can sleep must maintain the reference 1337 * count. When the reference count drops to -1 (0 is the normal value 1338 * of the reference count) the a wakeup on the softc is performed 1339 * signaling to the detach waiter that all references are gone. 1340 */ 1341 1342 /* 1343 * Called from process context when we discover that a port has 1344 * been disconnected. 1345 */ 1346 void 1347 usb_disconnect_port(struct usbd_port *up, device_t parent) 1348 { 1349 usbd_device_handle dev = up->device; 1350 const char *hubname = device_get_nameunit(parent); 1351 int i; 1352 1353 DPRINTFN(3,("uhub_disconnect: up=%p dev=%p port=%d\n", 1354 up, dev, up->portno)); 1355 1356 #ifdef DIAGNOSTIC 1357 if (dev == NULL) { 1358 printf("usb_disconnect_port: no device\n"); 1359 return; 1360 } 1361 #endif 1362 1363 if (dev->subdevs != NULL) { 1364 DPRINTFN(3,("usb_disconnect_port: disconnect subdevs\n")); 1365 for (i = 0; dev->subdevs[i]; i++) { 1366 if (!device_is_quiet(dev->subdevs[i])) { 1367 device_printf(dev->subdevs[i], 1368 "at %s", hubname); 1369 if (up->portno != 0) 1370 printf(" port %d", up->portno); 1371 printf(" (addr %d) disconnected\n", dev->address); 1372 } 1373 1374 struct usb_attach_arg *uaap = 1375 device_get_ivars(dev->subdevs[i]); 1376 device_detach(dev->subdevs[i]); 1377 free(uaap, M_USB); 1378 device_delete_child(device_get_parent(dev->subdevs[i]), 1379 dev->subdevs[i]); 1380 dev->subdevs[i] = NULL; 1381 } 1382 } 1383 1384 usbd_add_dev_event(USB_EVENT_DEVICE_DETACH, dev); 1385 dev->bus->devices[dev->address] = NULL; 1386 up->device = NULL; 1387 usb_free_device(dev); 1388 }
Cache object: 9a0c61de21dd53b862edd62774456c90
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