ehci_pci.c revision 220303
117683Spst/*- 217683Spst * Copyright (c) 1998 The NetBSD Foundation, Inc. 317683Spst * All rights reserved. 417683Spst * 517683Spst * This code is derived from software contributed to The NetBSD Foundation 617683Spst * by Lennart Augustsson (augustss@carlstedt.se) at 717683Spst * Carlstedt Research & Technology. 817683Spst * 917683Spst * Redistribution and use in source and binary forms, with or without 1017683Spst * modification, are permitted provided that the following conditions 1117683Spst * are met: 1217683Spst * 1. Redistributions of source code must retain the above copyright 1317683Spst * notice, this list of conditions and the following disclaimer. 1417683Spst * 2. Redistributions in binary form must reproduce the above copyright 1517683Spst * notice, this list of conditions and the following disclaimer in the 1617683Spst * documentation and/or other materials provided with the distribution. 1717683Spst * 1817683Spst * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 1917683Spst * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 2017683Spst * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 2117683Spst * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 2217683Spst * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 2317683Spst * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 2417683Spst * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2517683Spst * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2617683Spst * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 2717683Spst * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 2817683Spst * POSSIBILITY OF SUCH DAMAGE. 2917683Spst */ 3017683Spst 3117683Spst#include <sys/cdefs.h> 3217683Spst__FBSDID("$FreeBSD: head/sys/dev/usb/controller/ehci_pci.c 220303 2011-04-03 20:17:49Z hselasky $"); 3317683Spst 3417683Spst/* 3517683Spst * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller. 3617683Spst * 3717683Spst * The EHCI 1.0 spec can be found at 3817683Spst * http://developer.intel.com/technology/usb/download/ehci-r10.pdf 3917683Spst * and the USB 2.0 spec at 4017683Spst * http://www.usb.org/developers/docs/usb_20.zip 4117683Spst */ 4217683Spst 4317683Spst/* The low level controller code for EHCI has been split into 4417683Spst * PCI probes and EHCI specific code. This was done to facilitate the 4517683Spst * sharing of code between *BSD's 4617683Spst */ 4717683Spst 4817683Spst#include <sys/stdint.h> 4917683Spst#include <sys/stddef.h> 5017683Spst#include <sys/param.h> 5117683Spst#include <sys/queue.h> 5217683Spst#include <sys/types.h> 5317683Spst#include <sys/systm.h> 5417683Spst#include <sys/kernel.h> 5517683Spst#include <sys/bus.h> 5617683Spst#include <sys/module.h> 5717683Spst#include <sys/lock.h> 5817683Spst#include <sys/mutex.h> 5917683Spst#include <sys/condvar.h> 6017683Spst#include <sys/sysctl.h> 6117683Spst#include <sys/sx.h> 6217683Spst#include <sys/unistd.h> 6317683Spst#include <sys/callout.h> 6417683Spst#include <sys/malloc.h> 6517683Spst#include <sys/priv.h> 6617683Spst 6717683Spst#include <dev/usb/usb.h> 6817683Spst#include <dev/usb/usbdi.h> 6917683Spst 7017683Spst#include <dev/usb/usb_core.h> 7117683Spst#include <dev/usb/usb_busdma.h> 7217683Spst#include <dev/usb/usb_process.h> 7317683Spst#include <dev/usb/usb_util.h> 7417683Spst 7517683Spst#include <dev/usb/usb_controller.h> 7617683Spst#include <dev/usb/usb_bus.h> 7717683Spst#include <dev/usb/usb_pci.h> 7817683Spst#include <dev/usb/controller/ehci.h> 7917683Spst#include <dev/usb/controller/ehcireg.h> 8017683Spst 8117683Spst#define PCI_EHCI_VENDORID_ACERLABS 0x10b9 8217683Spst#define PCI_EHCI_VENDORID_AMD 0x1022 8317683Spst#define PCI_EHCI_VENDORID_APPLE 0x106b 8417683Spst#define PCI_EHCI_VENDORID_ATI 0x1002 8517683Spst#define PCI_EHCI_VENDORID_CMDTECH 0x1095 8617683Spst#define PCI_EHCI_VENDORID_INTEL 0x8086 8717683Spst#define PCI_EHCI_VENDORID_NEC 0x1033 8817683Spst#define PCI_EHCI_VENDORID_OPTI 0x1045 8917683Spst#define PCI_EHCI_VENDORID_PHILIPS 0x1131 9017683Spst#define PCI_EHCI_VENDORID_SIS 0x1039 9117683Spst#define PCI_EHCI_VENDORID_NVIDIA 0x12D2 9217683Spst#define PCI_EHCI_VENDORID_NVIDIA2 0x10DE 9317683Spst#define PCI_EHCI_VENDORID_VIA 0x1106 9417683Spst 9517683Spststatic void ehci_pci_takecontroller(device_t self); 9617683Spst 9717683Spststatic device_probe_t ehci_pci_probe; 9817683Spststatic device_attach_t ehci_pci_attach; 9917683Spststatic device_detach_t ehci_pci_detach; 10017683Spststatic device_suspend_t ehci_pci_suspend; 10117683Spststatic device_resume_t ehci_pci_resume; 10217683Spststatic device_shutdown_t ehci_pci_shutdown; 10317683Spst 10417683Spststatic int 10517683Spstehci_pci_suspend(device_t self) 10617683Spst{ 10717683Spst ehci_softc_t *sc = device_get_softc(self); 10817683Spst int err; 10917683Spst 11017683Spst err = bus_generic_suspend(self); 11117683Spst if (err) 11217683Spst return (err); 11317683Spst ehci_suspend(sc); 11417683Spst return (0); 11517683Spst} 11617683Spst 11717683Spststatic int 11817683Spstehci_pci_resume(device_t self) 11917683Spst{ 12017683Spst ehci_softc_t *sc = device_get_softc(self); 12117683Spst 12217683Spst ehci_pci_takecontroller(self); 12317683Spst ehci_resume(sc); 12417683Spst 12517683Spst bus_generic_resume(self); 12617683Spst 12717683Spst return (0); 12817683Spst} 12917683Spst 13017683Spststatic int 13117683Spstehci_pci_shutdown(device_t self) 13217683Spst{ 13317683Spst ehci_softc_t *sc = device_get_softc(self); 13417683Spst int err; 13517683Spst 13617683Spst err = bus_generic_shutdown(self); 13717683Spst if (err) 13817683Spst return (err); 13917683Spst ehci_shutdown(sc); 14017683Spst 14117683Spst return (0); 14217683Spst} 14317683Spst 14417683Spststatic const char * 14517683Spstehci_pci_match(device_t self) 14617683Spst{ 14717683Spst uint32_t device_id = pci_get_devid(self); 14817683Spst 14917683Spst switch (device_id) { 15017683Spst case 0x268c8086: 15117683Spst return ("Intel 63XXESB USB 2.0 controller"); 15217683Spst 15317683Spst case 0x523910b9: 15417683Spst return "ALi M5239 USB 2.0 controller"; 15517683Spst 15617683Spst case 0x10227463: 15717683Spst return "AMD 8111 USB 2.0 controller"; 15817683Spst 15917683Spst case 0x20951022: 16017683Spst return ("AMD CS5536 (Geode) USB 2.0 controller"); 16117683Spst 16217683Spst case 0x43451002: 16317683Spst return "ATI SB200 USB 2.0 controller"; 16417683Spst case 0x43731002: 16517683Spst return "ATI SB400 USB 2.0 controller"; 16617683Spst 16717683Spst case 0x25ad8086: 16817683Spst return "Intel 6300ESB USB 2.0 controller"; 16917683Spst case 0x24cd8086: 17017683Spst return "Intel 82801DB/L/M (ICH4) USB 2.0 controller"; 17117683Spst case 0x24dd8086: 17217683Spst return "Intel 82801EB/R (ICH5) USB 2.0 controller"; 17317683Spst case 0x265c8086: 17417683Spst return "Intel 82801FB (ICH6) USB 2.0 controller"; 17517683Spst case 0x27cc8086: 17617683Spst return "Intel 82801GB/R (ICH7) USB 2.0 controller"; 17717683Spst 17817683Spst case 0x28368086: 17917683Spst return "Intel 82801H (ICH8) USB 2.0 controller USB2-A"; 18017683Spst case 0x283a8086: 18117683Spst return "Intel 82801H (ICH8) USB 2.0 controller USB2-B"; 18217683Spst case 0x293a8086: 18317683Spst return "Intel 82801I (ICH9) USB 2.0 controller"; 18417683Spst case 0x293c8086: 18517683Spst return "Intel 82801I (ICH9) USB 2.0 controller"; 18617683Spst case 0x3a3a8086: 18717683Spst return "Intel 82801JI (ICH10) USB 2.0 controller USB-A"; 18817683Spst case 0x3a3c8086: 18917683Spst return "Intel 82801JI (ICH10) USB 2.0 controller USB-B"; 19017683Spst case 0x3b348086: 19117683Spst return ("Intel PCH USB 2.0 controller USB-A"); 19217683Spst case 0x3b3c8086: 19317683Spst return ("Intel PCH USB 2.0 controller USB-B"); 19417683Spst 19517683Spst case 0x00e01033: 19617683Spst return ("NEC uPD 720100 USB 2.0 controller"); 19717683Spst 19817683Spst case 0x006810de: 19917683Spst return "NVIDIA nForce2 USB 2.0 controller"; 20017683Spst case 0x008810de: 20117683Spst return "NVIDIA nForce2 Ultra 400 USB 2.0 controller"; 20217683Spst case 0x00d810de: 20317683Spst return "NVIDIA nForce3 USB 2.0 controller"; 20417683Spst case 0x00e810de: 20517683Spst return "NVIDIA nForce3 250 USB 2.0 controller"; 20617683Spst case 0x005b10de: 20717683Spst return "NVIDIA nForce4 USB 2.0 controller"; 20817683Spst case 0x036d10de: 20917683Spst return "NVIDIA nForce MCP55 USB 2.0 controller"; 21017683Spst case 0x03f210de: 21117683Spst return "NVIDIA nForce MCP61 USB 2.0 controller"; 21217683Spst case 0x0aa610de: 21317683Spst return "NVIDIA nForce MCP79 USB 2.0 controller"; 21417683Spst case 0x0aa910de: 21517683Spst return "NVIDIA nForce MCP79 USB 2.0 controller"; 21617683Spst case 0x0aaa10de: 21717683Spst return "NVIDIA nForce MCP79 USB 2.0 controller"; 21817683Spst 21917683Spst case 0x15621131: 22017683Spst return "Philips ISP156x USB 2.0 controller"; 22117683Spst 22217683Spst case 0x31041106: 22317683Spst return ("VIA VT6202 USB 2.0 controller"); 22417683Spst 22517683Spst default: 22617683Spst break; 22717683Spst } 22817683Spst 22917683Spst if ((pci_get_class(self) == PCIC_SERIALBUS) 23017683Spst && (pci_get_subclass(self) == PCIS_SERIALBUS_USB) 23117683Spst && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) { 23217683Spst return ("EHCI (generic) USB 2.0 controller"); 23317683Spst } 23417683Spst return (NULL); /* dunno */ 23517683Spst} 23617683Spst 23717683Spststatic int 23817683Spstehci_pci_probe(device_t self) 23917683Spst{ 24017683Spst const char *desc = ehci_pci_match(self); 24117683Spst 24217683Spst if (desc) { 24317683Spst device_set_desc(self, desc); 24417683Spst return (0); 24517683Spst } else { 24617683Spst return (ENXIO); 24717683Spst } 24817683Spst} 24917683Spst 25017683Spststatic void 25117683Spstehci_pci_ati_quirk(device_t self, uint8_t is_sb700) 25217683Spst{ 25317683Spst device_t smbdev; 25417683Spst uint32_t val; 25517683Spst 25617683Spst if (is_sb700) { 25717683Spst /* Lookup SMBUS PCI device */ 25817683Spst smbdev = pci_find_device(PCI_EHCI_VENDORID_ATI, 0x4385); 25917683Spst if (smbdev == NULL) 26017683Spst return; 26117683Spst val = pci_get_revid(smbdev); 26217683Spst if (val != 0x3a && val != 0x3b) 26317683Spst return; 26417683Spst } 26517683Spst 26617683Spst /* 26717683Spst * Note: this bit is described as reserved in SB700 26817683Spst * Register Reference Guide. 26917683Spst */ 27017683Spst val = pci_read_config(self, 0x53, 1); 27117683Spst if (!(val & 0x8)) { 27217683Spst val |= 0x8; 27317683Spst pci_write_config(self, 0x53, val, 1); 27417683Spst device_printf(self, "AMD SB600/700 quirk applied\n"); 27517683Spst } 27617683Spst} 27717683Spst 27817683Spststatic void 27917683Spstehci_pci_via_quirk(device_t self) 28017683Spst{ 28117683Spst uint32_t val; 282 283 if ((pci_get_device(self) == 0x3104) && 284 ((pci_get_revid(self) & 0xf0) == 0x60)) { 285 /* Correct schedule sleep time to 10us */ 286 val = pci_read_config(self, 0x4b, 1); 287 if (val & 0x20) 288 return; 289 pci_write_config(self, 0x4b, val, 1); 290 device_printf(self, "VIA-quirk applied\n"); 291 } 292} 293 294static int 295ehci_pci_attach(device_t self) 296{ 297 ehci_softc_t *sc = device_get_softc(self); 298 int err; 299 int rid; 300 301 /* initialise some bus fields */ 302 sc->sc_bus.parent = self; 303 sc->sc_bus.devices = sc->sc_devices; 304 sc->sc_bus.devices_max = EHCI_MAX_DEVICES; 305 306 /* get all DMA memory */ 307 if (usb_bus_mem_alloc_all(&sc->sc_bus, 308 USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { 309 return (ENOMEM); 310 } 311 312 pci_enable_busmaster(self); 313 314 switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) { 315 case PCI_USB_REV_PRE_1_0: 316 case PCI_USB_REV_1_0: 317 case PCI_USB_REV_1_1: 318 /* 319 * NOTE: some EHCI USB controllers have the wrong USB 320 * revision number. It appears those controllers are 321 * fully compliant so we just ignore this value in 322 * some common cases. 323 */ 324 device_printf(self, "pre-2.0 USB revision (ignored)\n"); 325 /* fallthrough */ 326 case PCI_USB_REV_2_0: 327 break; 328 default: 329 /* Quirk for Parallels Desktop 4.0 */ 330 device_printf(self, "USB revision is unknown. Assuming v2.0.\n"); 331 break; 332 } 333 334 rid = PCI_CBMEM; 335 sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 336 RF_ACTIVE); 337 if (!sc->sc_io_res) { 338 device_printf(self, "Could not map memory\n"); 339 goto error; 340 } 341 sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 342 sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 343 sc->sc_io_size = rman_get_size(sc->sc_io_res); 344 345 rid = 0; 346 sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, 347 RF_SHAREABLE | RF_ACTIVE); 348 if (sc->sc_irq_res == NULL) { 349 device_printf(self, "Could not allocate irq\n"); 350 goto error; 351 } 352 sc->sc_bus.bdev = device_add_child(self, "usbus", -1); 353 if (!sc->sc_bus.bdev) { 354 device_printf(self, "Could not add USB device\n"); 355 goto error; 356 } 357 device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 358 359 /* 360 * ehci_pci_match will never return NULL if ehci_pci_probe 361 * succeeded 362 */ 363 device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self)); 364 switch (pci_get_vendor(self)) { 365 case PCI_EHCI_VENDORID_ACERLABS: 366 sprintf(sc->sc_vendor, "AcerLabs"); 367 break; 368 case PCI_EHCI_VENDORID_AMD: 369 sprintf(sc->sc_vendor, "AMD"); 370 break; 371 case PCI_EHCI_VENDORID_APPLE: 372 sprintf(sc->sc_vendor, "Apple"); 373 break; 374 case PCI_EHCI_VENDORID_ATI: 375 sprintf(sc->sc_vendor, "ATI"); 376 break; 377 case PCI_EHCI_VENDORID_CMDTECH: 378 sprintf(sc->sc_vendor, "CMDTECH"); 379 break; 380 case PCI_EHCI_VENDORID_INTEL: 381 sprintf(sc->sc_vendor, "Intel"); 382 break; 383 case PCI_EHCI_VENDORID_NEC: 384 sprintf(sc->sc_vendor, "NEC"); 385 break; 386 case PCI_EHCI_VENDORID_OPTI: 387 sprintf(sc->sc_vendor, "OPTi"); 388 break; 389 case PCI_EHCI_VENDORID_PHILIPS: 390 sprintf(sc->sc_vendor, "Philips"); 391 break; 392 case PCI_EHCI_VENDORID_SIS: 393 sprintf(sc->sc_vendor, "SiS"); 394 break; 395 case PCI_EHCI_VENDORID_NVIDIA: 396 case PCI_EHCI_VENDORID_NVIDIA2: 397 sprintf(sc->sc_vendor, "nVidia"); 398 break; 399 case PCI_EHCI_VENDORID_VIA: 400 sprintf(sc->sc_vendor, "VIA"); 401 break; 402 default: 403 if (bootverbose) 404 device_printf(self, "(New EHCI DeviceId=0x%08x)\n", 405 pci_get_devid(self)); 406 sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self)); 407 } 408 409#if (__FreeBSD_version >= 700031) 410 err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 411 NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 412#else 413 err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 414 (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 415#endif 416 if (err) { 417 device_printf(self, "Could not setup irq, %d\n", err); 418 sc->sc_intr_hdl = NULL; 419 goto error; 420 } 421 ehci_pci_takecontroller(self); 422 423 /* Undocumented quirks taken from Linux */ 424 425 switch (pci_get_vendor(self)) { 426 case PCI_EHCI_VENDORID_ATI: 427 /* SB600 and SB700 EHCI quirk */ 428 switch (pci_get_device(self)) { 429 case 0x4386: 430 ehci_pci_ati_quirk(self, 0); 431 break; 432 case 0x4396: 433 ehci_pci_ati_quirk(self, 1); 434 break; 435 default: 436 break; 437 } 438 break; 439 440 case PCI_EHCI_VENDORID_VIA: 441 ehci_pci_via_quirk(self); 442 break; 443 444 default: 445 break; 446 } 447 448 /* Dropped interrupts workaround */ 449 switch (pci_get_vendor(self)) { 450 case PCI_EHCI_VENDORID_ATI: 451 case PCI_EHCI_VENDORID_VIA: 452 sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG; 453 if (bootverbose) 454 device_printf(self, 455 "Dropped interrupts workaround enabled\n"); 456 break; 457 default: 458 break; 459 } 460 461 /* Doorbell feature workaround */ 462 switch (pci_get_vendor(self)) { 463 case PCI_EHCI_VENDORID_NVIDIA: 464 case PCI_EHCI_VENDORID_NVIDIA2: 465 sc->sc_flags |= EHCI_SCFLG_IAADBUG; 466 if (bootverbose) 467 device_printf(self, 468 "Doorbell workaround enabled\n"); 469 break; 470 default: 471 break; 472 } 473 474 err = ehci_init(sc); 475 if (!err) { 476 err = device_probe_and_attach(sc->sc_bus.bdev); 477 } 478 if (err) { 479 device_printf(self, "USB init failed err=%d\n", err); 480 goto error; 481 } 482 return (0); 483 484error: 485 ehci_pci_detach(self); 486 return (ENXIO); 487} 488 489static int 490ehci_pci_detach(device_t self) 491{ 492 ehci_softc_t *sc = device_get_softc(self); 493 device_t bdev; 494 495 if (sc->sc_bus.bdev) { 496 bdev = sc->sc_bus.bdev; 497 device_detach(bdev); 498 device_delete_child(self, bdev); 499 } 500 /* during module unload there are lots of children leftover */ 501 device_delete_all_children(self); 502 503 pci_disable_busmaster(self); 504 505 /* 506 * disable interrupts that might have been switched on in ehci_init 507 */ 508 if (sc->sc_io_res) { 509 EOWRITE4(sc, EHCI_USBINTR, 0); 510 } 511 if (sc->sc_irq_res && sc->sc_intr_hdl) { 512 /* 513 * only call ehci_detach() after ehci_init() 514 */ 515 ehci_detach(sc); 516 517 int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); 518 519 if (err) 520 /* XXX or should we panic? */ 521 device_printf(self, "Could not tear down irq, %d\n", 522 err); 523 sc->sc_intr_hdl = NULL; 524 } 525 if (sc->sc_irq_res) { 526 bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); 527 sc->sc_irq_res = NULL; 528 } 529 if (sc->sc_io_res) { 530 bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, 531 sc->sc_io_res); 532 sc->sc_io_res = NULL; 533 } 534 usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); 535 536 return (0); 537} 538 539static void 540ehci_pci_takecontroller(device_t self) 541{ 542 ehci_softc_t *sc = device_get_softc(self); 543 uint32_t cparams; 544 uint32_t eec; 545 uint16_t to; 546 uint8_t eecp; 547 uint8_t bios_sem; 548 549 cparams = EREAD4(sc, EHCI_HCCPARAMS); 550 551 /* Synchronise with the BIOS if it owns the controller. */ 552 for (eecp = EHCI_HCC_EECP(cparams); eecp != 0; 553 eecp = EHCI_EECP_NEXT(eec)) { 554 eec = pci_read_config(self, eecp, 4); 555 if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) { 556 continue; 557 } 558 bios_sem = pci_read_config(self, eecp + 559 EHCI_LEGSUP_BIOS_SEM, 1); 560 if (bios_sem == 0) { 561 continue; 562 } 563 device_printf(sc->sc_bus.bdev, "waiting for BIOS " 564 "to give up control\n"); 565 pci_write_config(self, eecp + 566 EHCI_LEGSUP_OS_SEM, 1, 1); 567 to = 500; 568 while (1) { 569 bios_sem = pci_read_config(self, eecp + 570 EHCI_LEGSUP_BIOS_SEM, 1); 571 if (bios_sem == 0) 572 break; 573 574 if (--to == 0) { 575 device_printf(sc->sc_bus.bdev, 576 "timed out waiting for BIOS\n"); 577 break; 578 } 579 usb_pause_mtx(NULL, hz / 100); /* wait 10ms */ 580 } 581 } 582} 583 584static driver_t ehci_driver = 585{ 586 .name = "ehci", 587 .methods = (device_method_t[]){ 588 /* device interface */ 589 DEVMETHOD(device_probe, ehci_pci_probe), 590 DEVMETHOD(device_attach, ehci_pci_attach), 591 DEVMETHOD(device_detach, ehci_pci_detach), 592 DEVMETHOD(device_suspend, ehci_pci_suspend), 593 DEVMETHOD(device_resume, ehci_pci_resume), 594 DEVMETHOD(device_shutdown, ehci_pci_shutdown), 595 /* bus interface */ 596 DEVMETHOD(bus_print_child, bus_generic_print_child), 597 598 {0, 0} 599 }, 600 .size = sizeof(struct ehci_softc), 601}; 602 603static devclass_t ehci_devclass; 604 605DRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0); 606MODULE_DEPEND(ehci, usb, 1, 1, 1); 607