1 /* $NetBSD: usb_subr.c,v 1.178 2011/03/20 17:38:11 tsutsui 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, 2004 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 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: usb_subr.c,v 1.178 2011/03/20 17:38:11 tsutsui Exp $"); 36 37 #include "opt_compat_netbsd.h" 38 #include "opt_usbverbose.h" 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/kernel.h> 43 #include <sys/malloc.h> 44 #include <sys/device.h> 45 #include <sys/select.h> 46 #include <sys/proc.h> 47 48 #include <sys/bus.h> 49 #include <sys/module.h> 50 51 #include <dev/usb/usb.h> 52 53 #include <dev/usb/usbdi.h> 54 #include <dev/usb/usbdi_util.h> 55 #include <dev/usb/usbdivar.h> 56 #include <dev/usb/usbdevs.h> 57 #include <dev/usb/usb_quirks.h> 58 #include <dev/usb/usb_verbose.h> 59 60 #include "locators.h" 61 62 #ifdef USB_DEBUG 63 #define DPRINTF(x) if (usbdebug) printf x 64 #define DPRINTFN(n,x) if (usbdebug>(n)) printf x 65 extern int usbdebug; 66 #else 67 #define DPRINTF(x) 68 #define DPRINTFN(n,x) 69 #endif 70 71 MALLOC_DEFINE(M_USB, "USB", "USB misc. memory"); 72 MALLOC_DEFINE(M_USBDEV, "USB device", "USB device driver"); 73 MALLOC_DEFINE(M_USBHC, "USB HC", "USB host controller"); 74 75 Static usbd_status usbd_set_config(usbd_device_handle, int); 76 Static void usbd_devinfo(usbd_device_handle, int, char *, size_t); 77 Static void usbd_devinfo_vp(usbd_device_handle, char *, size_t, char *, size_t, 78 int, int); 79 Static int usbd_getnewaddr(usbd_bus_handle); 80 Static int usbd_print(void *, const char *); 81 Static int usbd_ifprint(void *, const char *); 82 Static void usbd_free_iface_data(usbd_device_handle, int); 83 Static void usbd_kill_pipe(usbd_pipe_handle); 84 usbd_status usbd_attach_roothub(device_t, usbd_device_handle); 85 Static usbd_status usbd_probe_and_attach(device_t, usbd_device_handle, int, 86 int); 87 88 Static u_int32_t usb_cookie_no = 0; 89 90 Static const char * const usbd_error_strs[] = { 91 "NORMAL_COMPLETION", 92 "IN_PROGRESS", 93 "PENDING_REQUESTS", 94 "NOT_STARTED", 95 "INVAL", 96 "NOMEM", 97 "CANCELLED", 98 "BAD_ADDRESS", 99 "IN_USE", 100 "NO_ADDR", 101 "SET_ADDR_FAILED", 102 "NO_POWER", 103 "TOO_DEEP", 104 "IOERROR", 105 "NOT_CONFIGURED", 106 "TIMEOUT", 107 "SHORT_XFER", 108 "STALLED", 109 "INTERRUPTED", 110 "XXX", 111 }; 112 113 void usb_load_verbose(void); 114 115 void get_usb_vendor_stub(char *, size_t, usb_vendor_id_t); 116 void get_usb_product_stub(char *, size_t, usb_vendor_id_t, usb_product_id_t); 117 118 void (*get_usb_vendor)(char *, size_t, usb_vendor_id_t) = get_usb_vendor_stub; 119 void (*get_usb_product)(char *, size_t, usb_vendor_id_t, usb_product_id_t) = 120 get_usb_product_stub; 121 122 int usb_verbose_loaded = 0; 123 124 /* 125 * Load the usbverbose module 126 */ 127 void usb_load_verbose(void) 128 { 129 if (usb_verbose_loaded == 0) 130 module_autoload("usbverbose", MODULE_CLASS_MISC); 131 } 132 133 void get_usb_vendor_stub(char *v, size_t l, usb_vendor_id_t v_id) 134 { 135 usb_load_verbose(); 136 if (usb_verbose_loaded) 137 get_usb_vendor(v, l, v_id); 138 } 139 140 void get_usb_product_stub(char *p, size_t l, usb_vendor_id_t v_id, 141 usb_product_id_t p_id) 142 { 143 usb_load_verbose(); 144 if (usb_verbose_loaded) 145 get_usb_product(p, l, v_id, p_id); 146 } 147 148 const char * 149 usbd_errstr(usbd_status err) 150 { 151 static char buffer[5]; 152 153 if (err < USBD_ERROR_MAX) { 154 return usbd_error_strs[err]; 155 } else { 156 snprintf(buffer, sizeof buffer, "%d", err); 157 return buffer; 158 } 159 } 160 161 usbd_status 162 usbd_get_string_desc(usbd_device_handle dev, int sindex, int langid, 163 usb_string_descriptor_t *sdesc, int *sizep) 164 { 165 usb_device_request_t req; 166 usbd_status err; 167 int actlen; 168 169 req.bmRequestType = UT_READ_DEVICE; 170 req.bRequest = UR_GET_DESCRIPTOR; 171 USETW2(req.wValue, UDESC_STRING, sindex); 172 USETW(req.wIndex, langid); 173 USETW(req.wLength, 2); /* only size byte first */ 174 err = usbd_do_request_flags(dev, &req, sdesc, USBD_SHORT_XFER_OK, 175 &actlen, USBD_DEFAULT_TIMEOUT); 176 if (err) 177 return (err); 178 179 if (actlen < 2) 180 return (USBD_SHORT_XFER); 181 182 USETW(req.wLength, sdesc->bLength); /* the whole string */ 183 err = usbd_do_request_flags(dev, &req, sdesc, USBD_SHORT_XFER_OK, 184 &actlen, USBD_DEFAULT_TIMEOUT); 185 if (err) 186 return (err); 187 188 if (actlen != sdesc->bLength) { 189 DPRINTFN(-1, ("usbd_get_string_desc: expected %d, got %d\n", 190 sdesc->bLength, actlen)); 191 } 192 193 *sizep = actlen; 194 return (USBD_NORMAL_COMPLETION); 195 } 196 197 static void 198 usbd_trim_spaces(char *p) 199 { 200 char *q, *e; 201 202 q = e = p; 203 while (*q == ' ') /* skip leading spaces */ 204 q++; 205 while ((*p = *q++)) /* copy string */ 206 if (*p++ != ' ') /* remember last non-space */ 207 e = p; 208 *e = '\0'; /* kill trailing spaces */ 209 } 210 211 Static void 212 usbd_devinfo_vp(usbd_device_handle dev, char *v, size_t vl, char *p, 213 size_t pl, int usedev, int useencoded) 214 { 215 usb_device_descriptor_t *udd = &dev->ddesc; 216 if (dev == NULL) 217 return; 218 219 v[0] = p[0] = '\0'; 220 221 if (usedev) { 222 if (usbd_get_string0(dev, udd->iManufacturer, v, useencoded) == 223 USBD_NORMAL_COMPLETION) 224 usbd_trim_spaces(v); 225 if (usbd_get_string0(dev, udd->iProduct, p, useencoded) == 226 USBD_NORMAL_COMPLETION) 227 usbd_trim_spaces(p); 228 } 229 if (v[0] == '\0') 230 get_usb_vendor(v, vl, UGETW(udd->idVendor)); 231 if (p[0] == '\0') 232 get_usb_product(p, pl, UGETW(udd->idVendor), 233 UGETW(udd->idProduct)); 234 235 if (v[0] == '\0') 236 snprintf(v, vl, "vendor 0x%04x", UGETW(udd->idVendor)); 237 if (p[0] == '\0') 238 snprintf(p, pl, "product 0x%04x", UGETW(udd->idProduct)); 239 } 240 241 int 242 usbd_printBCD(char *cp, size_t l, int bcd) 243 { 244 return snprintf(cp, l, "%x.%02x", bcd >> 8, bcd & 0xff); 245 } 246 247 Static void 248 usbd_devinfo(usbd_device_handle dev, int showclass, char *cp, size_t l) 249 { 250 usb_device_descriptor_t *udd = &dev->ddesc; 251 char *vendor, *product; 252 int bcdDevice, bcdUSB; 253 char *ep; 254 255 vendor = malloc(USB_MAX_ENCODED_STRING_LEN * 2, M_USB, M_NOWAIT); 256 if (vendor == NULL) { 257 *cp = '\0'; 258 return; 259 } 260 product = &vendor[USB_MAX_ENCODED_STRING_LEN]; 261 262 ep = cp + l; 263 264 usbd_devinfo_vp(dev, vendor, USB_MAX_ENCODED_STRING_LEN, 265 product, USB_MAX_ENCODED_STRING_LEN, 1, 1); 266 cp += snprintf(cp, ep - cp, "%s %s", vendor, product); 267 if (showclass) 268 cp += snprintf(cp, ep - cp, ", class %d/%d", 269 udd->bDeviceClass, udd->bDeviceSubClass); 270 bcdUSB = UGETW(udd->bcdUSB); 271 bcdDevice = UGETW(udd->bcdDevice); 272 cp += snprintf(cp, ep - cp, ", rev "); 273 cp += usbd_printBCD(cp, ep - cp, bcdUSB); 274 *cp++ = '/'; 275 cp += usbd_printBCD(cp, ep - cp, bcdDevice); 276 cp += snprintf(cp, ep - cp, ", addr %d", dev->address); 277 *cp = 0; 278 free(vendor, M_USB); 279 } 280 281 char * 282 usbd_devinfo_alloc(usbd_device_handle dev, int showclass) 283 { 284 char *devinfop; 285 286 devinfop = malloc(DEVINFOSIZE, M_TEMP, M_WAITOK); 287 usbd_devinfo(dev, showclass, devinfop, DEVINFOSIZE); 288 return devinfop; 289 } 290 291 void 292 usbd_devinfo_free(char *devinfop) 293 { 294 free(devinfop, M_TEMP); 295 } 296 297 /* Delay for a certain number of ms */ 298 void 299 usb_delay_ms(usbd_bus_handle bus, u_int ms) 300 { 301 /* Wait at least two clock ticks so we know the time has passed. */ 302 if (bus->use_polling || cold) 303 delay((ms+1) * 1000); 304 else 305 tsleep(&ms, PRIBIO, "usbdly", (ms*hz+999)/1000 + 1); 306 } 307 308 /* Delay given a device handle. */ 309 void 310 usbd_delay_ms(usbd_device_handle dev, u_int ms) 311 { 312 usb_delay_ms(dev->bus, ms); 313 } 314 315 usbd_status 316 usbd_reset_port(usbd_device_handle dev, int port, usb_port_status_t *ps) 317 { 318 usb_device_request_t req; 319 usbd_status err; 320 int n; 321 322 req.bmRequestType = UT_WRITE_CLASS_OTHER; 323 req.bRequest = UR_SET_FEATURE; 324 USETW(req.wValue, UHF_PORT_RESET); 325 USETW(req.wIndex, port); 326 USETW(req.wLength, 0); 327 err = usbd_do_request(dev, &req, 0); 328 DPRINTFN(1,("usbd_reset_port: port %d reset done, error=%s\n", 329 port, usbd_errstr(err))); 330 if (err) 331 return (err); 332 n = 10; 333 do { 334 /* Wait for device to recover from reset. */ 335 usbd_delay_ms(dev, USB_PORT_RESET_DELAY); 336 err = usbd_get_port_status(dev, port, ps); 337 if (err) { 338 DPRINTF(("usbd_reset_port: get status failed %d\n", 339 err)); 340 return (err); 341 } 342 /* If the device disappeared, just give up. */ 343 if (!(UGETW(ps->wPortStatus) & UPS_CURRENT_CONNECT_STATUS)) 344 return (USBD_NORMAL_COMPLETION); 345 } while ((UGETW(ps->wPortChange) & UPS_C_PORT_RESET) == 0 && --n > 0); 346 if (n == 0) 347 return (USBD_TIMEOUT); 348 err = usbd_clear_port_feature(dev, port, UHF_C_PORT_RESET); 349 #ifdef USB_DEBUG 350 if (err) 351 DPRINTF(("usbd_reset_port: clear port feature failed %d\n", 352 err)); 353 #endif 354 355 /* Wait for the device to recover from reset. */ 356 usbd_delay_ms(dev, USB_PORT_RESET_RECOVERY); 357 return (err); 358 } 359 360 usb_interface_descriptor_t * 361 usbd_find_idesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx) 362 { 363 char *p = (char *)cd; 364 char *end = p + UGETW(cd->wTotalLength); 365 usb_interface_descriptor_t *d; 366 int curidx, lastidx, curaidx = 0; 367 368 for (curidx = lastidx = -1; p < end; ) { 369 d = (usb_interface_descriptor_t *)p; 370 DPRINTFN(4,("usbd_find_idesc: idx=%d(%d) altidx=%d(%d) len=%d " 371 "type=%d\n", 372 ifaceidx, curidx, altidx, curaidx, 373 d->bLength, d->bDescriptorType)); 374 if (d->bLength == 0) /* bad descriptor */ 375 break; 376 p += d->bLength; 377 if (p <= end && d->bDescriptorType == UDESC_INTERFACE) { 378 if (d->bInterfaceNumber != lastidx) { 379 lastidx = d->bInterfaceNumber; 380 curidx++; 381 curaidx = 0; 382 } else 383 curaidx++; 384 if (ifaceidx == curidx && altidx == curaidx) 385 return (d); 386 } 387 } 388 return (NULL); 389 } 390 391 usb_endpoint_descriptor_t * 392 usbd_find_edesc(usb_config_descriptor_t *cd, int ifaceidx, int altidx, 393 int endptidx) 394 { 395 char *p = (char *)cd; 396 char *end = p + UGETW(cd->wTotalLength); 397 usb_interface_descriptor_t *d; 398 usb_endpoint_descriptor_t *e; 399 int curidx; 400 401 d = usbd_find_idesc(cd, ifaceidx, altidx); 402 if (d == NULL) 403 return (NULL); 404 if (endptidx >= d->bNumEndpoints) /* quick exit */ 405 return (NULL); 406 407 curidx = -1; 408 for (p = (char *)d + d->bLength; p < end; ) { 409 e = (usb_endpoint_descriptor_t *)p; 410 if (e->bLength == 0) /* bad descriptor */ 411 break; 412 p += e->bLength; 413 if (p <= end && e->bDescriptorType == UDESC_INTERFACE) 414 return (NULL); 415 if (p <= end && e->bDescriptorType == UDESC_ENDPOINT) { 416 curidx++; 417 if (curidx == endptidx) 418 return (e); 419 } 420 } 421 return (NULL); 422 } 423 424 usbd_status 425 usbd_fill_iface_data(usbd_device_handle dev, int ifaceidx, int altidx) 426 { 427 usbd_interface_handle ifc = &dev->ifaces[ifaceidx]; 428 usb_interface_descriptor_t *idesc; 429 char *p, *end; 430 int endpt, nendpt; 431 432 DPRINTFN(4,("usbd_fill_iface_data: ifaceidx=%d altidx=%d\n", 433 ifaceidx, altidx)); 434 idesc = usbd_find_idesc(dev->cdesc, ifaceidx, altidx); 435 if (idesc == NULL) 436 return (USBD_INVAL); 437 ifc->device = dev; 438 ifc->idesc = idesc; 439 ifc->index = ifaceidx; 440 ifc->altindex = altidx; 441 nendpt = ifc->idesc->bNumEndpoints; 442 DPRINTFN(4,("usbd_fill_iface_data: found idesc nendpt=%d\n", nendpt)); 443 if (nendpt != 0) { 444 ifc->endpoints = malloc(nendpt * sizeof(struct usbd_endpoint), 445 M_USB, M_NOWAIT); 446 if (ifc->endpoints == NULL) 447 return (USBD_NOMEM); 448 } else 449 ifc->endpoints = NULL; 450 ifc->priv = NULL; 451 p = (char *)ifc->idesc + ifc->idesc->bLength; 452 end = (char *)dev->cdesc + UGETW(dev->cdesc->wTotalLength); 453 #define ed ((usb_endpoint_descriptor_t *)p) 454 for (endpt = 0; endpt < nendpt; endpt++) { 455 DPRINTFN(10,("usbd_fill_iface_data: endpt=%d\n", endpt)); 456 for (; p < end; p += ed->bLength) { 457 DPRINTFN(10,("usbd_fill_iface_data: p=%p end=%p " 458 "len=%d type=%d\n", 459 p, end, ed->bLength, ed->bDescriptorType)); 460 if (p + ed->bLength <= end && ed->bLength != 0 && 461 ed->bDescriptorType == UDESC_ENDPOINT) 462 goto found; 463 if (ed->bLength == 0 || 464 ed->bDescriptorType == UDESC_INTERFACE) 465 break; 466 } 467 /* passed end, or bad desc */ 468 printf("usbd_fill_iface_data: bad descriptor(s): %s\n", 469 ed->bLength == 0 ? "0 length" : 470 ed->bDescriptorType == UDESC_INTERFACE ? "iface desc": 471 "out of data"); 472 goto bad; 473 found: 474 ifc->endpoints[endpt].edesc = ed; 475 if (dev->speed == USB_SPEED_HIGH) { 476 u_int mps; 477 /* Control and bulk endpoints have max packet limits. */ 478 switch (UE_GET_XFERTYPE(ed->bmAttributes)) { 479 case UE_CONTROL: 480 mps = USB_2_MAX_CTRL_PACKET; 481 goto check; 482 case UE_BULK: 483 mps = USB_2_MAX_BULK_PACKET; 484 check: 485 if (UGETW(ed->wMaxPacketSize) != mps) { 486 USETW(ed->wMaxPacketSize, mps); 487 #ifdef DIAGNOSTIC 488 printf("usbd_fill_iface_data: bad max " 489 "packet size\n"); 490 #endif 491 } 492 break; 493 default: 494 break; 495 } 496 } 497 ifc->endpoints[endpt].refcnt = 0; 498 p += ed->bLength; 499 } 500 #undef ed 501 LIST_INIT(&ifc->pipes); 502 return (USBD_NORMAL_COMPLETION); 503 504 bad: 505 if (ifc->endpoints != NULL) { 506 free(ifc->endpoints, M_USB); 507 ifc->endpoints = NULL; 508 } 509 return (USBD_INVAL); 510 } 511 512 void 513 usbd_free_iface_data(usbd_device_handle dev, int ifcno) 514 { 515 usbd_interface_handle ifc = &dev->ifaces[ifcno]; 516 if (ifc->endpoints) 517 free(ifc->endpoints, M_USB); 518 } 519 520 Static usbd_status 521 usbd_set_config(usbd_device_handle dev, int conf) 522 { 523 usb_device_request_t req; 524 525 req.bmRequestType = UT_WRITE_DEVICE; 526 req.bRequest = UR_SET_CONFIG; 527 USETW(req.wValue, conf); 528 USETW(req.wIndex, 0); 529 USETW(req.wLength, 0); 530 return (usbd_do_request(dev, &req, 0)); 531 } 532 533 usbd_status 534 usbd_set_config_no(usbd_device_handle dev, int no, int msg) 535 { 536 int index; 537 usb_config_descriptor_t cd; 538 usbd_status err; 539 540 if (no == USB_UNCONFIG_NO) 541 return (usbd_set_config_index(dev, USB_UNCONFIG_INDEX, msg)); 542 543 DPRINTFN(5,("usbd_set_config_no: %d\n", no)); 544 /* Figure out what config index to use. */ 545 for (index = 0; index < dev->ddesc.bNumConfigurations; index++) { 546 err = usbd_get_config_desc(dev, index, &cd); 547 if (err) 548 return (err); 549 if (cd.bConfigurationValue == no) 550 return (usbd_set_config_index(dev, index, msg)); 551 } 552 return (USBD_INVAL); 553 } 554 555 usbd_status 556 usbd_set_config_index(usbd_device_handle dev, int index, int msg) 557 { 558 usb_config_descriptor_t cd, *cdp; 559 usbd_status err; 560 int i, ifcidx, nifc, len, selfpowered, power; 561 562 DPRINTFN(5,("usbd_set_config_index: dev=%p index=%d\n", dev, index)); 563 564 if (index >= dev->ddesc.bNumConfigurations && 565 index != USB_UNCONFIG_INDEX) { 566 /* panic? */ 567 printf("usbd_set_config_index: illegal index\n"); 568 return (USBD_INVAL); 569 } 570 571 /* XXX check that all interfaces are idle */ 572 if (dev->config != USB_UNCONFIG_NO) { 573 DPRINTF(("usbd_set_config_index: free old config\n")); 574 /* Free all configuration data structures. */ 575 nifc = dev->cdesc->bNumInterface; 576 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 577 usbd_free_iface_data(dev, ifcidx); 578 free(dev->ifaces, M_USB); 579 free(dev->cdesc, M_USB); 580 dev->ifaces = NULL; 581 dev->cdesc = NULL; 582 dev->config = USB_UNCONFIG_NO; 583 } 584 585 if (index == USB_UNCONFIG_INDEX) { 586 /* We are unconfiguring the device, so leave unallocated. */ 587 DPRINTF(("usbd_set_config_index: set config 0\n")); 588 err = usbd_set_config(dev, USB_UNCONFIG_NO); 589 if (err) { 590 DPRINTF(("usbd_set_config_index: setting config=0 " 591 "failed, error=%s\n", usbd_errstr(err))); 592 } 593 return (err); 594 } 595 596 /* Get the short descriptor. */ 597 err = usbd_get_config_desc(dev, index, &cd); 598 if (err) { 599 DPRINTF(("usbd_set_config_index: get_config_desc=%d\n", err)); 600 return (err); 601 } 602 len = UGETW(cd.wTotalLength); 603 cdp = malloc(len, M_USB, M_NOWAIT); 604 if (cdp == NULL) 605 return (USBD_NOMEM); 606 607 /* Get the full descriptor. Try a few times for slow devices. */ 608 for (i = 0; i < 3; i++) { 609 err = usbd_get_desc(dev, UDESC_CONFIG, index, len, cdp); 610 if (!err) 611 break; 612 usbd_delay_ms(dev, 200); 613 } 614 if (err) { 615 DPRINTF(("usbd_set_config_index: get_desc=%d\n", err)); 616 goto bad; 617 } 618 if (cdp->bDescriptorType != UDESC_CONFIG) { 619 DPRINTFN(-1,("usbd_set_config_index: bad desc %d\n", 620 cdp->bDescriptorType)); 621 err = USBD_INVAL; 622 goto bad; 623 } 624 625 /* 626 * Figure out if the device is self or bus powered. 627 */ 628 #if 0 /* XXX various devices don't report the power state correctly */ 629 selfpowered = 0; 630 err = usbd_get_device_status(dev, &ds); 631 if (!err && (UGETW(ds.wStatus) & UDS_SELF_POWERED)) 632 selfpowered = 1; 633 #endif 634 /* 635 * Use the power state in the configuration we are going 636 * to set. This doesn't necessarily reflect the actual 637 * power state of the device; the driver can control this 638 * by choosing the appropriate configuration. 639 */ 640 selfpowered = !!(cdp->bmAttributes & UC_SELF_POWERED); 641 642 DPRINTF(("usbd_set_config_index: (addr %d) cno=%d attr=0x%02x, " 643 "selfpowered=%d, power=%d\n", 644 cdp->bConfigurationValue, dev->address, cdp->bmAttributes, 645 selfpowered, cdp->bMaxPower * 2)); 646 647 /* Check if we have enough power. */ 648 #if 0 /* this is a no-op, see above */ 649 if ((cdp->bmAttributes & UC_SELF_POWERED) && !selfpowered) { 650 if (msg) 651 printf("%s: device addr %d (config %d): " 652 "can't set self powered configuration\n", 653 device_xname(dev->bus->bdev), dev->address, 654 cdp->bConfigurationValue); 655 err = USBD_NO_POWER; 656 goto bad; 657 } 658 #endif 659 #ifdef USB_DEBUG 660 if (dev->powersrc == NULL) { 661 DPRINTF(("usbd_set_config_index: No power source?\n")); 662 err = USBD_IOERROR; 663 goto bad; 664 } 665 #endif 666 power = cdp->bMaxPower * 2; 667 if (power > dev->powersrc->power) { 668 DPRINTF(("power exceeded %d %d\n", power,dev->powersrc->power)); 669 /* XXX print nicer message. */ 670 if (msg) 671 printf("%s: device addr %d (config %d) exceeds power " 672 "budget, %d mA > %d mA\n", 673 device_xname(dev->bus->usbctl), dev->address, 674 cdp->bConfigurationValue, 675 power, dev->powersrc->power); 676 err = USBD_NO_POWER; 677 goto bad; 678 } 679 dev->power = power; 680 dev->self_powered = selfpowered; 681 682 /* Set the actual configuration value. */ 683 DPRINTF(("usbd_set_config_index: set config %d\n", 684 cdp->bConfigurationValue)); 685 err = usbd_set_config(dev, cdp->bConfigurationValue); 686 if (err) { 687 DPRINTF(("usbd_set_config_index: setting config=%d failed, " 688 "error=%s\n", 689 cdp->bConfigurationValue, usbd_errstr(err))); 690 goto bad; 691 } 692 693 /* Allocate and fill interface data. */ 694 nifc = cdp->bNumInterface; 695 dev->ifaces = malloc(nifc * sizeof(struct usbd_interface), 696 M_USB, M_NOWAIT); 697 if (dev->ifaces == NULL) { 698 err = USBD_NOMEM; 699 goto bad; 700 } 701 DPRINTFN(5,("usbd_set_config_index: dev=%p cdesc=%p\n", dev, cdp)); 702 dev->cdesc = cdp; 703 dev->config = cdp->bConfigurationValue; 704 for (ifcidx = 0; ifcidx < nifc; ifcidx++) { 705 err = usbd_fill_iface_data(dev, ifcidx, 0); 706 if (err) { 707 while (--ifcidx >= 0) 708 usbd_free_iface_data(dev, ifcidx); 709 goto bad; 710 } 711 } 712 713 return (USBD_NORMAL_COMPLETION); 714 715 bad: 716 free(cdp, M_USB); 717 return (err); 718 } 719 720 /* XXX add function for alternate settings */ 721 722 usbd_status 723 usbd_setup_pipe(usbd_device_handle dev, usbd_interface_handle iface, 724 struct usbd_endpoint *ep, int ival, usbd_pipe_handle *pipe) 725 { 726 usbd_pipe_handle p; 727 usbd_status err; 728 729 DPRINTFN(1,("usbd_setup_pipe: dev=%p iface=%p ep=%p pipe=%p\n", 730 dev, iface, ep, pipe)); 731 p = malloc(dev->bus->pipe_size, M_USB, M_NOWAIT); 732 if (p == NULL) 733 return (USBD_NOMEM); 734 p->device = dev; 735 p->iface = iface; 736 p->endpoint = ep; 737 ep->refcnt++; 738 p->refcnt = 1; 739 p->intrxfer = 0; 740 p->running = 0; 741 p->aborting = 0; 742 p->repeat = 0; 743 p->interval = ival; 744 SIMPLEQ_INIT(&p->queue); 745 err = dev->bus->methods->open_pipe(p); 746 if (err) { 747 DPRINTFN(-1,("usbd_setup_pipe: endpoint=0x%x failed, error=" 748 "%s\n", 749 ep->edesc->bEndpointAddress, usbd_errstr(err))); 750 free(p, M_USB); 751 return (err); 752 } 753 *pipe = p; 754 return (USBD_NORMAL_COMPLETION); 755 } 756 757 /* Abort the device control pipe. */ 758 void 759 usbd_kill_pipe(usbd_pipe_handle pipe) 760 { 761 usbd_abort_pipe(pipe); 762 pipe->methods->close(pipe); 763 pipe->endpoint->refcnt--; 764 free(pipe, M_USB); 765 } 766 767 int 768 usbd_getnewaddr(usbd_bus_handle bus) 769 { 770 int addr; 771 772 for (addr = 1; addr < USB_MAX_DEVICES; addr++) 773 if (bus->devices[addr] == 0) 774 return (addr); 775 return (-1); 776 } 777 778 usbd_status 779 usbd_attach_roothub(device_t parent, usbd_device_handle dev) 780 { 781 struct usb_attach_arg uaa; 782 usb_device_descriptor_t *dd = &dev->ddesc; 783 device_t dv; 784 785 uaa.device = dev; 786 uaa.usegeneric = 0; 787 uaa.port = 0; 788 uaa.vendor = UGETW(dd->idVendor); 789 uaa.product = UGETW(dd->idProduct); 790 uaa.release = UGETW(dd->bcdDevice); 791 uaa.class = dd->bDeviceClass; 792 uaa.subclass = dd->bDeviceSubClass; 793 uaa.proto = dd->bDeviceProtocol; 794 795 dv = config_found_ia(parent, "usbroothubif", &uaa, 0); 796 if (dv) { 797 dev->subdevs = malloc(sizeof dv, M_USB, M_NOWAIT); 798 if (dev->subdevs == NULL) 799 return (USBD_NOMEM); 800 dev->subdevs[0] = dv; 801 dev->subdevlen = 1; 802 } 803 return (USBD_NORMAL_COMPLETION); 804 } 805 806 static usbd_status 807 usbd_attachwholedevice(device_t parent, usbd_device_handle dev, int port, 808 int usegeneric) 809 { 810 struct usb_attach_arg uaa; 811 usb_device_descriptor_t *dd = &dev->ddesc; 812 device_t dv; 813 int dlocs[USBDEVIFCF_NLOCS]; 814 815 uaa.device = dev; 816 uaa.usegeneric = usegeneric; 817 uaa.port = port; 818 uaa.vendor = UGETW(dd->idVendor); 819 uaa.product = UGETW(dd->idProduct); 820 uaa.release = UGETW(dd->bcdDevice); 821 uaa.class = dd->bDeviceClass; 822 uaa.subclass = dd->bDeviceSubClass; 823 uaa.proto = dd->bDeviceProtocol; 824 825 dlocs[USBDEVIFCF_PORT] = uaa.port; 826 dlocs[USBDEVIFCF_VENDOR] = uaa.vendor; 827 dlocs[USBDEVIFCF_PRODUCT] = uaa.product; 828 dlocs[USBDEVIFCF_RELEASE] = uaa.release; 829 /* the rest is historical ballast */ 830 dlocs[USBDEVIFCF_CONFIGURATION] = -1; 831 dlocs[USBDEVIFCF_INTERFACE] = -1; 832 833 dv = config_found_sm_loc(parent, "usbdevif", dlocs, &uaa, usbd_print, 834 config_stdsubmatch); 835 if (dv) { 836 dev->subdevs = malloc(sizeof dv, M_USB, M_NOWAIT); 837 if (dev->subdevs == NULL) 838 return (USBD_NOMEM); 839 dev->subdevs[0] = dv; 840 dev->subdevlen = 1; 841 dev->nifaces_claimed = 1; /* XXX */ 842 } 843 return (USBD_NORMAL_COMPLETION); 844 } 845 846 static usbd_status 847 usbd_attachinterfaces(device_t parent, usbd_device_handle dev, 848 int port, const int *locators) 849 { 850 struct usbif_attach_arg uiaa; 851 int ilocs[USBIFIFCF_NLOCS]; 852 usb_device_descriptor_t *dd = &dev->ddesc; 853 int nifaces; 854 usbd_interface_handle *ifaces; 855 int i, j, loc; 856 device_t dv; 857 858 nifaces = dev->cdesc->bNumInterface; 859 ifaces = malloc(nifaces * sizeof(*ifaces), M_USB, M_NOWAIT|M_ZERO); 860 if (!ifaces) 861 return (USBD_NOMEM); 862 for (i = 0; i < nifaces; i++) 863 if (!dev->subdevs[i]) 864 ifaces[i] = &dev->ifaces[i]; 865 866 uiaa.device = dev; 867 uiaa.port = port; 868 uiaa.vendor = UGETW(dd->idVendor); 869 uiaa.product = UGETW(dd->idProduct); 870 uiaa.release = UGETW(dd->bcdDevice); 871 uiaa.configno = dev->cdesc->bConfigurationValue; 872 uiaa.ifaces = ifaces; 873 uiaa.nifaces = nifaces; 874 ilocs[USBIFIFCF_PORT] = uiaa.port; 875 ilocs[USBIFIFCF_VENDOR] = uiaa.vendor; 876 ilocs[USBIFIFCF_PRODUCT] = uiaa.product; 877 ilocs[USBIFIFCF_RELEASE] = uiaa.release; 878 ilocs[USBIFIFCF_CONFIGURATION] = uiaa.configno; 879 880 for (i = 0; i < nifaces; i++) { 881 if (!ifaces[i]) 882 continue; /* interface already claimed */ 883 uiaa.iface = ifaces[i]; 884 uiaa.class = ifaces[i]->idesc->bInterfaceClass; 885 uiaa.subclass = ifaces[i]->idesc->bInterfaceSubClass; 886 uiaa.proto = ifaces[i]->idesc->bInterfaceProtocol; 887 uiaa.ifaceno = ifaces[i]->idesc->bInterfaceNumber; 888 ilocs[USBIFIFCF_INTERFACE] = uiaa.ifaceno; 889 if (locators != NULL) { 890 loc = locators[USBIFIFCF_CONFIGURATION]; 891 if (loc != USBIFIFCF_CONFIGURATION_DEFAULT && 892 loc != uiaa.configno) 893 continue; 894 loc = locators[USBIFIFCF_INTERFACE]; 895 if (loc != USBIFIFCF_INTERFACE && loc != uiaa.ifaceno) 896 continue; 897 } 898 dv = config_found_sm_loc(parent, "usbifif", ilocs, &uiaa, 899 usbd_ifprint, config_stdsubmatch); 900 if (!dv) 901 continue; 902 ifaces[i] = 0; /* claim */ 903 /* account for ifaces claimed by the driver behind our back */ 904 for (j = 0; j < nifaces; j++) { 905 if (!ifaces[j] && !dev->subdevs[j]) { 906 dev->subdevs[j] = dv; 907 dev->nifaces_claimed++; 908 } 909 } 910 } 911 912 free(ifaces, M_USB); 913 return (USBD_NORMAL_COMPLETION); 914 } 915 916 usbd_status 917 usbd_probe_and_attach(device_t parent, usbd_device_handle dev, 918 int port, int addr) 919 { 920 usb_device_descriptor_t *dd = &dev->ddesc; 921 int confi, nifaces; 922 usbd_status err; 923 924 /* First try with device specific drivers. */ 925 DPRINTF(("usbd_probe_and_attach: trying device specific drivers\n")); 926 err = usbd_attachwholedevice(parent, dev, port, 0); 927 if (dev->nifaces_claimed || err) 928 return (err); 929 DPRINTF(("usbd_probe_and_attach: no device specific driver found\n")); 930 931 DPRINTF(("usbd_probe_and_attach: looping over %d configurations\n", 932 dd->bNumConfigurations)); 933 for (confi = 0; confi < dd->bNumConfigurations; confi++) { 934 DPRINTFN(1,("usbd_probe_and_attach: trying config idx=%d\n", 935 confi)); 936 err = usbd_set_config_index(dev, confi, 1); 937 if (err) { 938 #ifdef USB_DEBUG 939 DPRINTF(("%s: port %d, set config at addr %d failed, " 940 "error=%s\n", device_xname(parent), port, 941 addr, usbd_errstr(err))); 942 #else 943 printf("%s: port %d, set config at addr %d failed\n", 944 device_xname(parent), port, addr); 945 #endif 946 return (err); 947 } 948 nifaces = dev->cdesc->bNumInterface; 949 dev->subdevs = malloc(nifaces * sizeof(device_t), M_USB, 950 M_NOWAIT|M_ZERO); 951 if (dev->subdevs == NULL) 952 return (USBD_NOMEM); 953 dev->subdevlen = nifaces; 954 955 err = usbd_attachinterfaces(parent, dev, port, NULL); 956 957 if (!dev->nifaces_claimed) { 958 free(dev->subdevs, M_USB); 959 dev->subdevs = 0; 960 dev->subdevlen = 0; 961 } 962 if (dev->nifaces_claimed || err) 963 return (err); 964 } 965 /* No interfaces were attached in any of the configurations. */ 966 967 if (dd->bNumConfigurations > 1) /* don't change if only 1 config */ 968 usbd_set_config_index(dev, 0, 0); 969 970 DPRINTF(("usbd_probe_and_attach: no interface drivers found\n")); 971 972 /* Finally try the generic driver. */ 973 err = usbd_attachwholedevice(parent, dev, port, 1); 974 975 /* 976 * The generic attach failed, but leave the device as it is. 977 * We just did not find any drivers, that's all. The device is 978 * fully operational and not harming anyone. 979 */ 980 DPRINTF(("usbd_probe_and_attach: generic attach failed\n")); 981 return (USBD_NORMAL_COMPLETION); 982 } 983 984 /** 985 * Called from uhub_rescan(). usbd_new_device() for the target dev must be 986 * called before calling this. 987 */ 988 usbd_status 989 usbd_reattach_device(device_t parent, usbd_device_handle dev, 990 int port, const int *locators) 991 { 992 int i, loc; 993 994 if (locators != NULL) { 995 loc = locators[USBIFIFCF_PORT]; 996 if (loc != USBIFIFCF_PORT_DEFAULT && loc != port) 997 return USBD_NORMAL_COMPLETION; 998 loc = locators[USBIFIFCF_VENDOR]; 999 if (loc != USBIFIFCF_VENDOR_DEFAULT && 1000 loc != UGETW(dev->ddesc.idVendor)) 1001 return USBD_NORMAL_COMPLETION; 1002 loc = locators[USBIFIFCF_PRODUCT]; 1003 if (loc != USBIFIFCF_PRODUCT_DEFAULT && 1004 loc != UGETW(dev->ddesc.idProduct)) 1005 return USBD_NORMAL_COMPLETION; 1006 loc = locators[USBIFIFCF_RELEASE]; 1007 if (loc != USBIFIFCF_RELEASE_DEFAULT && 1008 loc != UGETW(dev->ddesc.bcdDevice)) 1009 return USBD_NORMAL_COMPLETION; 1010 } 1011 if (dev->subdevlen == 0) { 1012 /* XXX: check USBIFIFCF_CONFIGURATION and 1013 * USBIFIFCF_INTERFACE too */ 1014 return usbd_probe_and_attach(parent, dev, port, dev->address); 1015 } else if (dev->subdevlen != dev->cdesc->bNumInterface) { 1016 /* device-specific or generic driver is already attached. */ 1017 return USBD_NORMAL_COMPLETION; 1018 } 1019 /* Does the device have unconfigured interfaces? */ 1020 for (i = 0; i < dev->subdevlen; i++) { 1021 if (dev->subdevs[i] == NULL) { 1022 break; 1023 } 1024 } 1025 if (i >= dev->subdevlen) 1026 return USBD_NORMAL_COMPLETION; 1027 return usbd_attachinterfaces(parent, dev, port, locators); 1028 } 1029 1030 /* 1031 * Get the first 8 bytes of the device descriptor. 1032 * Do as Windows does: try to read 64 bytes -- there are devices which 1033 * recognize the initial descriptor fetch (before the control endpoint's 1034 * MaxPacketSize is known by the host) by exactly this length. 1035 */ 1036 static usbd_status 1037 usbd_get_initial_ddesc(usbd_device_handle dev, usb_device_descriptor_t *desc) 1038 { 1039 usb_device_request_t req; 1040 char buf[64]; 1041 int res, actlen; 1042 1043 req.bmRequestType = UT_READ_DEVICE; 1044 req.bRequest = UR_GET_DESCRIPTOR; 1045 USETW2(req.wValue, UDESC_DEVICE, 0); 1046 USETW(req.wIndex, 0); 1047 USETW(req.wLength, 64); 1048 res = usbd_do_request_flags(dev, &req, buf, USBD_SHORT_XFER_OK, 1049 &actlen, USBD_DEFAULT_TIMEOUT); 1050 if (res) 1051 return res; 1052 if (actlen < 8) 1053 return USBD_SHORT_XFER; 1054 memcpy(desc, buf, 8); 1055 return USBD_NORMAL_COMPLETION; 1056 } 1057 1058 /* 1059 * Called when a new device has been put in the powered state, 1060 * but not yet in the addressed state. 1061 * Get initial descriptor, set the address, get full descriptor, 1062 * and attach a driver. 1063 */ 1064 usbd_status 1065 usbd_new_device(device_t parent, usbd_bus_handle bus, int depth, 1066 int speed, int port, struct usbd_port *up) 1067 { 1068 usbd_device_handle dev, adev; 1069 struct usbd_device *hub; 1070 usb_device_descriptor_t *dd; 1071 usb_port_status_t ps; 1072 usbd_status err; 1073 int addr; 1074 int i; 1075 int p; 1076 1077 DPRINTF(("usbd_new_device bus=%p port=%d depth=%d speed=%d\n", 1078 bus, port, depth, speed)); 1079 addr = usbd_getnewaddr(bus); 1080 if (addr < 0) { 1081 printf("%s: No free USB addresses, new device ignored.\n", 1082 device_xname(bus->usbctl)); 1083 return (USBD_NO_ADDR); 1084 } 1085 1086 dev = malloc(sizeof *dev, M_USB, M_NOWAIT|M_ZERO); 1087 if (dev == NULL) 1088 return (USBD_NOMEM); 1089 1090 dev->bus = bus; 1091 1092 /* Set up default endpoint handle. */ 1093 dev->def_ep.edesc = &dev->def_ep_desc; 1094 1095 /* Set up default endpoint descriptor. */ 1096 dev->def_ep_desc.bLength = USB_ENDPOINT_DESCRIPTOR_SIZE; 1097 dev->def_ep_desc.bDescriptorType = UDESC_ENDPOINT; 1098 dev->def_ep_desc.bEndpointAddress = USB_CONTROL_ENDPOINT; 1099 dev->def_ep_desc.bmAttributes = UE_CONTROL; 1100 /* 1101 * temporary, will be fixed after first descriptor fetch 1102 * (which uses 64 bytes so it shouldn't be less), 1103 * highspeed devices must support 64 byte packets anyway 1104 */ 1105 USETW(dev->def_ep_desc.wMaxPacketSize, 64); 1106 dev->def_ep_desc.bInterval = 0; 1107 1108 dev->quirks = &usbd_no_quirk; 1109 dev->address = USB_START_ADDR; 1110 dev->ddesc.bMaxPacketSize = 0; 1111 dev->depth = depth; 1112 dev->powersrc = up; 1113 dev->myhub = up->parent; 1114 1115 up->device = dev; 1116 1117 /* Locate port on upstream high speed hub */ 1118 for (adev = dev, hub = up->parent; 1119 hub != NULL && hub->speed != USB_SPEED_HIGH; 1120 adev = hub, hub = hub->myhub) 1121 ; 1122 if (hub) { 1123 for (p = 0; p < hub->hub->hubdesc.bNbrPorts; p++) { 1124 if (hub->hub->ports[p].device == adev) { 1125 dev->myhsport = &hub->hub->ports[p]; 1126 goto found; 1127 } 1128 } 1129 panic("usbd_new_device: cannot find HS port\n"); 1130 found: 1131 DPRINTFN(1,("usbd_new_device: high speed port %d\n", p)); 1132 } else { 1133 dev->myhsport = NULL; 1134 } 1135 dev->speed = speed; 1136 dev->langid = USBD_NOLANG; 1137 dev->cookie.cookie = ++usb_cookie_no; 1138 1139 /* Establish the default pipe. */ 1140 err = usbd_setup_pipe(dev, 0, &dev->def_ep, USBD_DEFAULT_INTERVAL, 1141 &dev->default_pipe); 1142 if (err) { 1143 usbd_remove_device(dev, up); 1144 return (err); 1145 } 1146 1147 dd = &dev->ddesc; 1148 /* Try a few times in case the device is slow (i.e. outside specs.) */ 1149 for (i = 0; i < 10; i++) { 1150 /* Get the first 8 bytes of the device descriptor. */ 1151 err = usbd_get_initial_ddesc(dev, dd); 1152 if (!err) 1153 break; 1154 usbd_delay_ms(dev, 200); 1155 if ((i & 3) == 3) 1156 usbd_reset_port(up->parent, port, &ps); 1157 } 1158 if (err) { 1159 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting first desc " 1160 "failed\n", addr)); 1161 usbd_remove_device(dev, up); 1162 return (err); 1163 } 1164 1165 /* Windows resets the port here, do likewise */ 1166 if (up->parent) 1167 usbd_reset_port(up->parent, port, &ps); 1168 1169 if (speed == USB_SPEED_HIGH) { 1170 /* Max packet size must be 64 (sec 5.5.3). */ 1171 if (dd->bMaxPacketSize != USB_2_MAX_CTRL_PACKET) { 1172 #ifdef DIAGNOSTIC 1173 printf("usbd_new_device: addr=%d bad max packet " 1174 "size=%d. adjusting to %d.\n", 1175 addr, dd->bMaxPacketSize, USB_2_MAX_CTRL_PACKET); 1176 #endif 1177 dd->bMaxPacketSize = USB_2_MAX_CTRL_PACKET; 1178 } 1179 } 1180 1181 DPRINTF(("usbd_new_device: adding unit addr=%d, rev=%02x, class=%d, " 1182 "subclass=%d, protocol=%d, maxpacket=%d, len=%d, speed=%d\n", 1183 addr,UGETW(dd->bcdUSB), dd->bDeviceClass, dd->bDeviceSubClass, 1184 dd->bDeviceProtocol, dd->bMaxPacketSize, dd->bLength, 1185 dev->speed)); 1186 1187 if (dd->bDescriptorType != UDESC_DEVICE) { 1188 /* Illegal device descriptor */ 1189 DPRINTFN(-1,("usbd_new_device: illegal descriptor %d\n", 1190 dd->bDescriptorType)); 1191 usbd_remove_device(dev, up); 1192 return (USBD_INVAL); 1193 } 1194 1195 if (dd->bLength < USB_DEVICE_DESCRIPTOR_SIZE) { 1196 DPRINTFN(-1,("usbd_new_device: bad length %d\n", dd->bLength)); 1197 usbd_remove_device(dev, up); 1198 return (USBD_INVAL); 1199 } 1200 1201 USETW(dev->def_ep_desc.wMaxPacketSize, dd->bMaxPacketSize); 1202 1203 /* Set the address */ 1204 DPRINTFN(5, ("usbd_new_device: setting device address=%d\n", addr)); 1205 err = usbd_set_address(dev, addr); 1206 if (err) { 1207 DPRINTFN(-1, ("usbd_new_device: set address %d failed\n", addr)); 1208 err = USBD_SET_ADDR_FAILED; 1209 usbd_remove_device(dev, up); 1210 return err; 1211 } 1212 1213 /* Allow device time to set new address */ 1214 usbd_delay_ms(dev, USB_SET_ADDRESS_SETTLE); 1215 dev->address = addr; /* new device address now */ 1216 bus->devices[addr] = dev; 1217 1218 err = usbd_reload_device_desc(dev); 1219 if (err) { 1220 DPRINTFN(-1, ("usbd_new_device: addr=%d, getting full desc " 1221 "failed\n", addr)); 1222 usbd_remove_device(dev, up); 1223 return (err); 1224 } 1225 1226 /* Re-establish the default pipe with the new address. */ 1227 usbd_kill_pipe(dev->default_pipe); 1228 err = usbd_setup_pipe(dev, 0, &dev->def_ep, USBD_DEFAULT_INTERVAL, 1229 &dev->default_pipe); 1230 if (err) { 1231 DPRINTFN(-1, ("usbd_new_device: setup default pipe failed\n")); 1232 usbd_remove_device(dev, up); 1233 return err; 1234 } 1235 1236 /* Assume 100mA bus powered for now. Changed when configured. */ 1237 dev->power = USB_MIN_POWER; 1238 dev->self_powered = 0; 1239 1240 DPRINTF(("usbd_new_device: new dev (addr %d), dev=%p, parent=%p\n", 1241 addr, dev, parent)); 1242 1243 usbd_add_dev_event(USB_EVENT_DEVICE_ATTACH, dev); 1244 1245 if (port == 0) { /* root hub */ 1246 KASSERT(addr == 1); 1247 usbd_attach_roothub(parent, dev); 1248 return (USBD_NORMAL_COMPLETION); 1249 } 1250 1251 err = usbd_probe_and_attach(parent, dev, port, addr); 1252 if (err) { 1253 usbd_remove_device(dev, up); 1254 return (err); 1255 } 1256 1257 return (USBD_NORMAL_COMPLETION); 1258 } 1259 1260 usbd_status 1261 usbd_reload_device_desc(usbd_device_handle dev) 1262 { 1263 usbd_status err; 1264 1265 /* Get the full device descriptor. */ 1266 err = usbd_get_device_desc(dev, &dev->ddesc); 1267 if (err) 1268 return (err); 1269 1270 /* Figure out what's wrong with this device. */ 1271 dev->quirks = usbd_find_quirk(&dev->ddesc); 1272 1273 return (USBD_NORMAL_COMPLETION); 1274 } 1275 1276 void 1277 usbd_remove_device(usbd_device_handle dev, struct usbd_port *up) 1278 { 1279 DPRINTF(("usbd_remove_device: %p\n", dev)); 1280 1281 if (dev->default_pipe != NULL) 1282 usbd_kill_pipe(dev->default_pipe); 1283 up->device = NULL; 1284 dev->bus->devices[dev->address] = NULL; 1285 1286 free(dev, M_USB); 1287 } 1288 1289 int 1290 usbd_print(void *aux, const char *pnp) 1291 { 1292 struct usb_attach_arg *uaa = aux; 1293 1294 DPRINTFN(15, ("usbd_print dev=%p\n", uaa->device)); 1295 if (pnp) { 1296 #define USB_DEVINFO 1024 1297 char *devinfo; 1298 if (!uaa->usegeneric) 1299 return (QUIET); 1300 devinfo = malloc(USB_DEVINFO, M_TEMP, M_WAITOK); 1301 usbd_devinfo(uaa->device, 1, devinfo, USB_DEVINFO); 1302 aprint_normal("%s, %s", devinfo, pnp); 1303 free(devinfo, M_TEMP); 1304 } 1305 aprint_normal(" port %d", uaa->port); 1306 #if 0 1307 /* 1308 * It gets very crowded with these locators on the attach line. 1309 * They are not really needed since they are printed in the clear 1310 * by each driver. 1311 */ 1312 if (uaa->vendor != UHUB_UNK_VENDOR) 1313 aprint_normal(" vendor 0x%04x", uaa->vendor); 1314 if (uaa->product != UHUB_UNK_PRODUCT) 1315 aprint_normal(" product 0x%04x", uaa->product); 1316 if (uaa->release != UHUB_UNK_RELEASE) 1317 aprint_normal(" release 0x%04x", uaa->release); 1318 #endif 1319 return (UNCONF); 1320 } 1321 1322 int 1323 usbd_ifprint(void *aux, const char *pnp) 1324 { 1325 struct usbif_attach_arg *uaa = aux; 1326 1327 DPRINTFN(15, ("usbd_print dev=%p\n", uaa->device)); 1328 if (pnp) 1329 return (QUIET); 1330 aprint_normal(" port %d", uaa->port); 1331 aprint_normal(" configuration %d", uaa->configno); 1332 aprint_normal(" interface %d", uaa->ifaceno); 1333 #if 0 1334 /* 1335 * It gets very crowded with these locators on the attach line. 1336 * They are not really needed since they are printed in the clear 1337 * by each driver. 1338 */ 1339 if (uaa->vendor != UHUB_UNK_VENDOR) 1340 aprint_normal(" vendor 0x%04x", uaa->vendor); 1341 if (uaa->product != UHUB_UNK_PRODUCT) 1342 aprint_normal(" product 0x%04x", uaa->product); 1343 if (uaa->release != UHUB_UNK_RELEASE) 1344 aprint_normal(" release 0x%04x", uaa->release); 1345 #endif 1346 return (UNCONF); 1347 } 1348 1349 void 1350 usbd_fill_deviceinfo(usbd_device_handle dev, struct usb_device_info *di, 1351 int usedev) 1352 { 1353 struct usbd_port *p; 1354 int i, j, err, s; 1355 1356 di->udi_bus = device_unit(dev->bus->usbctl); 1357 di->udi_addr = dev->address; 1358 di->udi_cookie = dev->cookie; 1359 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1360 di->udi_product, sizeof(di->udi_product), usedev, 1); 1361 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1362 UGETW(dev->ddesc.bcdDevice)); 1363 di->udi_serial[0] = 0; 1364 if (usedev) 1365 (void)usbd_get_string(dev, dev->ddesc.iSerialNumber, 1366 di->udi_serial); 1367 di->udi_vendorNo = UGETW(dev->ddesc.idVendor); 1368 di->udi_productNo = UGETW(dev->ddesc.idProduct); 1369 di->udi_releaseNo = UGETW(dev->ddesc.bcdDevice); 1370 di->udi_class = dev->ddesc.bDeviceClass; 1371 di->udi_subclass = dev->ddesc.bDeviceSubClass; 1372 di->udi_protocol = dev->ddesc.bDeviceProtocol; 1373 di->udi_config = dev->config; 1374 di->udi_power = dev->self_powered ? 0 : dev->power; 1375 di->udi_speed = dev->speed; 1376 1377 if (dev->subdevlen > 0) { 1378 for (i = 0, j = 0; i < dev->subdevlen && 1379 j < USB_MAX_DEVNAMES; i++) { 1380 if (!dev->subdevs[i]) 1381 continue; 1382 strncpy(di->udi_devnames[j], 1383 device_xname(dev->subdevs[i]), USB_MAX_DEVNAMELEN); 1384 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1385 j++; 1386 } 1387 } else { 1388 j = 0; 1389 } 1390 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1391 di->udi_devnames[j][0] = 0; /* empty */ 1392 1393 if (dev->hub) { 1394 for (i = 0; 1395 i < sizeof(di->udi_ports) / sizeof(di->udi_ports[0]) && 1396 i < dev->hub->hubdesc.bNbrPorts; 1397 i++) { 1398 p = &dev->hub->ports[i]; 1399 if (p->device) 1400 err = p->device->address; 1401 else { 1402 s = UGETW(p->status.wPortStatus); 1403 if (s & UPS_PORT_ENABLED) 1404 err = USB_PORT_ENABLED; 1405 else if (s & UPS_SUSPEND) 1406 err = USB_PORT_SUSPENDED; 1407 else if (s & UPS_PORT_POWER) 1408 err = USB_PORT_POWERED; 1409 else 1410 err = USB_PORT_DISABLED; 1411 } 1412 di->udi_ports[i] = err; 1413 } 1414 di->udi_nports = dev->hub->hubdesc.bNbrPorts; 1415 } else 1416 di->udi_nports = 0; 1417 } 1418 1419 #ifdef COMPAT_30 1420 void 1421 usbd_fill_deviceinfo_old(usbd_device_handle dev, struct usb_device_info_old *di, 1422 int usedev) 1423 { 1424 struct usbd_port *p; 1425 int i, j, err, s; 1426 1427 di->udi_bus = device_unit(dev->bus->usbctl); 1428 di->udi_addr = dev->address; 1429 di->udi_cookie = dev->cookie; 1430 usbd_devinfo_vp(dev, di->udi_vendor, sizeof(di->udi_vendor), 1431 di->udi_product, sizeof(di->udi_product), usedev, 0); 1432 usbd_printBCD(di->udi_release, sizeof(di->udi_release), 1433 UGETW(dev->ddesc.bcdDevice)); 1434 di->udi_vendorNo = UGETW(dev->ddesc.idVendor); 1435 di->udi_productNo = UGETW(dev->ddesc.idProduct); 1436 di->udi_releaseNo = UGETW(dev->ddesc.bcdDevice); 1437 di->udi_class = dev->ddesc.bDeviceClass; 1438 di->udi_subclass = dev->ddesc.bDeviceSubClass; 1439 di->udi_protocol = dev->ddesc.bDeviceProtocol; 1440 di->udi_config = dev->config; 1441 di->udi_power = dev->self_powered ? 0 : dev->power; 1442 di->udi_speed = dev->speed; 1443 1444 if (dev->subdevlen > 0) { 1445 for (i = 0, j = 0; i < dev->subdevlen && 1446 j < USB_MAX_DEVNAMES; i++) { 1447 if (!dev->subdevs[i]) 1448 continue; 1449 strncpy(di->udi_devnames[j], 1450 device_xname(dev->subdevs[i]), USB_MAX_DEVNAMELEN); 1451 di->udi_devnames[j][USB_MAX_DEVNAMELEN-1] = '\0'; 1452 j++; 1453 } 1454 } else { 1455 j = 0; 1456 } 1457 for (/* j is set */; j < USB_MAX_DEVNAMES; j++) 1458 di->udi_devnames[j][0] = 0; /* empty */ 1459 1460 if (dev->hub) { 1461 for (i = 0; 1462 i < sizeof(di->udi_ports) / sizeof(di->udi_ports[0]) && 1463 i < dev->hub->hubdesc.bNbrPorts; 1464 i++) { 1465 p = &dev->hub->ports[i]; 1466 if (p->device) 1467 err = p->device->address; 1468 else { 1469 s = UGETW(p->status.wPortStatus); 1470 if (s & UPS_PORT_ENABLED) 1471 err = USB_PORT_ENABLED; 1472 else if (s & UPS_SUSPEND) 1473 err = USB_PORT_SUSPENDED; 1474 else if (s & UPS_PORT_POWER) 1475 err = USB_PORT_POWERED; 1476 else 1477 err = USB_PORT_DISABLED; 1478 } 1479 di->udi_ports[i] = err; 1480 } 1481 di->udi_nports = dev->hub->hubdesc.bNbrPorts; 1482 } else 1483 di->udi_nports = 0; 1484 } 1485 #endif 1486 1487 1488 void 1489 usb_free_device(usbd_device_handle dev) 1490 { 1491 int ifcidx, nifc; 1492 1493 if (dev->default_pipe != NULL) 1494 usbd_kill_pipe(dev->default_pipe); 1495 if (dev->ifaces != NULL) { 1496 nifc = dev->cdesc->bNumInterface; 1497 for (ifcidx = 0; ifcidx < nifc; ifcidx++) 1498 usbd_free_iface_data(dev, ifcidx); 1499 free(dev->ifaces, M_USB); 1500 } 1501 if (dev->cdesc != NULL) 1502 free(dev->cdesc, M_USB); 1503 if (dev->subdevlen > 0) { 1504 free(dev->subdevs, M_USB); 1505 dev->subdevlen = 0; 1506 } 1507 free(dev, M_USB); 1508 } 1509 1510 /* 1511 * The general mechanism for detaching drivers works as follows: Each 1512 * driver is responsible for maintaining a reference count on the 1513 * number of outstanding references to its softc (e.g. from 1514 * processing hanging in a read or write). The detach method of the 1515 * driver decrements this counter and flags in the softc that the 1516 * driver is dying and then wakes any sleepers. It then sleeps on the 1517 * softc. Each place that can sleep must maintain the reference 1518 * count. When the reference count drops to -1 (0 is the normal value 1519 * of the reference count) the a wakeup on the softc is performed 1520 * signaling to the detach waiter that all references are gone. 1521 */ 1522 1523 /* 1524 * Called from process context when we discover that a port has 1525 * been disconnected. 1526 */ 1527 int 1528 usb_disconnect_port(struct usbd_port *up, device_t parent, int flags) 1529 { 1530 usbd_device_handle dev = up->device; 1531 device_t subdev; 1532 char subdevname[16]; 1533 const char *hubname = device_xname(parent); 1534 int i, rc; 1535 1536 DPRINTFN(3,("uhub_disconnect: up=%p dev=%p port=%d\n", 1537 up, dev, up->portno)); 1538 1539 if (dev == NULL) { 1540 #ifdef DIAGNOSTIC 1541 printf("usb_disconnect_port: no device\n"); 1542 #endif 1543 return 0; 1544 } 1545 1546 if (dev->subdevlen > 0) { 1547 DPRINTFN(3,("usb_disconnect_port: disconnect subdevs\n")); 1548 for (i = 0; i < dev->subdevlen; i++) { 1549 if ((subdev = dev->subdevs[i]) == NULL) 1550 continue; 1551 strlcpy(subdevname, device_xname(subdev), 1552 sizeof(subdevname)); 1553 if ((rc = config_detach(subdev, flags)) != 0) 1554 return rc; 1555 printf("%s: at %s", subdevname, hubname); 1556 if (up->portno != 0) 1557 printf(" port %d", up->portno); 1558 printf(" (addr %d) disconnected\n", dev->address); 1559 } 1560 KASSERT(!dev->nifaces_claimed); 1561 } 1562 1563 usbd_add_dev_event(USB_EVENT_DEVICE_DETACH, dev); 1564 dev->bus->devices[dev->address] = NULL; 1565 up->device = NULL; 1566 usb_free_device(dev); 1567 return 0; 1568 } 1569