ehci_pci.c revision 195958
1184610Salfred/*- 2184610Salfred * Copyright (c) 1998 The NetBSD Foundation, Inc. 3184610Salfred * All rights reserved. 4184610Salfred * 5184610Salfred * This code is derived from software contributed to The NetBSD Foundation 6184610Salfred * by Lennart Augustsson (augustss@carlstedt.se) at 7184610Salfred * Carlstedt Research & Technology. 8184610Salfred * 9184610Salfred * Redistribution and use in source and binary forms, with or without 10184610Salfred * modification, are permitted provided that the following conditions 11184610Salfred * are met: 12184610Salfred * 1. Redistributions of source code must retain the above copyright 13184610Salfred * notice, this list of conditions and the following disclaimer. 14184610Salfred * 2. Redistributions in binary form must reproduce the above copyright 15184610Salfred * notice, this list of conditions and the following disclaimer in the 16184610Salfred * documentation and/or other materials provided with the distribution. 17184610Salfred * 3. All advertising materials mentioning features or use of this software 18184610Salfred * must display the following acknowledgement: 19184610Salfred * This product includes software developed by the NetBSD 20184610Salfred * Foundation, Inc. and its contributors. 21184610Salfred * 4. Neither the name of The NetBSD Foundation nor the names of its 22184610Salfred * contributors may be used to endorse or promote products derived 23184610Salfred * from this software without specific prior written permission. 24184610Salfred * 25184610Salfred * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26184610Salfred * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27184610Salfred * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28184610Salfred * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29184610Salfred * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30184610Salfred * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31184610Salfred * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32184610Salfred * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33184610Salfred * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34184610Salfred * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35184610Salfred * POSSIBILITY OF SUCH DAMAGE. 36184610Salfred */ 37184610Salfred 38184610Salfred#include <sys/cdefs.h> 39184610Salfred__FBSDID("$FreeBSD: head/sys/dev/usb/controller/ehci_pci.c 195958 2009-07-30 00:12:47Z alfred $"); 40184610Salfred 41184610Salfred/* 42184610Salfred * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller. 43184610Salfred * 44184610Salfred * The EHCI 1.0 spec can be found at 45184610Salfred * http://developer.intel.com/technology/usb/download/ehci-r10.pdf 46184610Salfred * and the USB 2.0 spec at 47184610Salfred * http://www.usb.org/developers/docs/usb_20.zip 48184610Salfred */ 49184610Salfred 50184610Salfred/* The low level controller code for EHCI has been split into 51184610Salfred * PCI probes and EHCI specific code. This was done to facilitate the 52184610Salfred * sharing of code between *BSD's 53184610Salfred */ 54184610Salfred 55194677Sthompsa#include <sys/stdint.h> 56194677Sthompsa#include <sys/stddef.h> 57194677Sthompsa#include <sys/param.h> 58194677Sthompsa#include <sys/queue.h> 59194677Sthompsa#include <sys/types.h> 60194677Sthompsa#include <sys/systm.h> 61194677Sthompsa#include <sys/kernel.h> 62194677Sthompsa#include <sys/bus.h> 63194677Sthompsa#include <sys/linker_set.h> 64194677Sthompsa#include <sys/module.h> 65194677Sthompsa#include <sys/lock.h> 66194677Sthompsa#include <sys/mutex.h> 67194677Sthompsa#include <sys/condvar.h> 68194677Sthompsa#include <sys/sysctl.h> 69194677Sthompsa#include <sys/sx.h> 70194677Sthompsa#include <sys/unistd.h> 71194677Sthompsa#include <sys/callout.h> 72194677Sthompsa#include <sys/malloc.h> 73194677Sthompsa#include <sys/priv.h> 74194677Sthompsa 75188942Sthompsa#include <dev/usb/usb.h> 76194677Sthompsa#include <dev/usb/usbdi.h> 77184610Salfred 78188942Sthompsa#include <dev/usb/usb_core.h> 79188942Sthompsa#include <dev/usb/usb_busdma.h> 80188942Sthompsa#include <dev/usb/usb_process.h> 81188942Sthompsa#include <dev/usb/usb_util.h> 82184610Salfred 83188942Sthompsa#include <dev/usb/usb_controller.h> 84188942Sthompsa#include <dev/usb/usb_bus.h> 85188942Sthompsa#include <dev/usb/usb_pci.h> 86188942Sthompsa#include <dev/usb/controller/ehci.h> 87184610Salfred 88184610Salfred#define PCI_EHCI_VENDORID_ACERLABS 0x10b9 89184610Salfred#define PCI_EHCI_VENDORID_AMD 0x1022 90184610Salfred#define PCI_EHCI_VENDORID_APPLE 0x106b 91184610Salfred#define PCI_EHCI_VENDORID_ATI 0x1002 92184610Salfred#define PCI_EHCI_VENDORID_CMDTECH 0x1095 93184610Salfred#define PCI_EHCI_VENDORID_INTEL 0x8086 94184610Salfred#define PCI_EHCI_VENDORID_NEC 0x1033 95184610Salfred#define PCI_EHCI_VENDORID_OPTI 0x1045 96184610Salfred#define PCI_EHCI_VENDORID_PHILIPS 0x1131 97184610Salfred#define PCI_EHCI_VENDORID_SIS 0x1039 98184610Salfred#define PCI_EHCI_VENDORID_NVIDIA 0x12D2 99184610Salfred#define PCI_EHCI_VENDORID_NVIDIA2 0x10DE 100184610Salfred#define PCI_EHCI_VENDORID_VIA 0x1106 101184610Salfred 102184610Salfred#define PCI_EHCI_BASE_REG 0x10 103184610Salfred 104184610Salfredstatic void ehci_pci_takecontroller(device_t self); 105184610Salfred 106184610Salfredstatic device_probe_t ehci_pci_probe; 107184610Salfredstatic device_attach_t ehci_pci_attach; 108184610Salfredstatic device_detach_t ehci_pci_detach; 109184610Salfredstatic device_suspend_t ehci_pci_suspend; 110184610Salfredstatic device_resume_t ehci_pci_resume; 111184610Salfredstatic device_shutdown_t ehci_pci_shutdown; 112184610Salfred 113184610Salfredstatic int 114184610Salfredehci_pci_suspend(device_t self) 115184610Salfred{ 116184610Salfred ehci_softc_t *sc = device_get_softc(self); 117184610Salfred int err; 118184610Salfred 119184610Salfred err = bus_generic_suspend(self); 120184610Salfred if (err) 121184610Salfred return (err); 122184610Salfred ehci_suspend(sc); 123184610Salfred return (0); 124184610Salfred} 125184610Salfred 126184610Salfredstatic int 127184610Salfredehci_pci_resume(device_t self) 128184610Salfred{ 129184610Salfred ehci_softc_t *sc = device_get_softc(self); 130184610Salfred 131184610Salfred ehci_pci_takecontroller(self); 132184610Salfred ehci_resume(sc); 133184610Salfred 134184610Salfred bus_generic_resume(self); 135184610Salfred 136184610Salfred return (0); 137184610Salfred} 138184610Salfred 139184610Salfredstatic int 140184610Salfredehci_pci_shutdown(device_t self) 141184610Salfred{ 142184610Salfred ehci_softc_t *sc = device_get_softc(self); 143184610Salfred int err; 144184610Salfred 145184610Salfred err = bus_generic_shutdown(self); 146184610Salfred if (err) 147184610Salfred return (err); 148184610Salfred ehci_shutdown(sc); 149184610Salfred 150184610Salfred return (0); 151184610Salfred} 152184610Salfred 153184610Salfredstatic const char * 154184610Salfredehci_pci_match(device_t self) 155184610Salfred{ 156184610Salfred uint32_t device_id = pci_get_devid(self); 157184610Salfred 158184610Salfred switch (device_id) { 159184610Salfred case 0x268c8086: 160184610Salfred return ("Intel 63XXESB USB 2.0 controller"); 161184610Salfred 162184610Salfred case 0x523910b9: 163184610Salfred return "ALi M5239 USB 2.0 controller"; 164184610Salfred 165184610Salfred case 0x10227463: 166184610Salfred return "AMD 8111 USB 2.0 controller"; 167184610Salfred 168184610Salfred case 0x20951022: 169184610Salfred return ("AMD CS5536 (Geode) USB 2.0 controller"); 170184610Salfred 171184610Salfred case 0x43451002: 172184610Salfred return "ATI SB200 USB 2.0 controller"; 173184610Salfred case 0x43731002: 174184610Salfred return "ATI SB400 USB 2.0 controller"; 175184610Salfred 176184610Salfred case 0x25ad8086: 177184610Salfred return "Intel 6300ESB USB 2.0 controller"; 178184610Salfred case 0x24cd8086: 179184610Salfred return "Intel 82801DB/L/M (ICH4) USB 2.0 controller"; 180184610Salfred case 0x24dd8086: 181184610Salfred return "Intel 82801EB/R (ICH5) USB 2.0 controller"; 182184610Salfred case 0x265c8086: 183184610Salfred return "Intel 82801FB (ICH6) USB 2.0 controller"; 184184610Salfred case 0x27cc8086: 185184610Salfred return "Intel 82801GB/R (ICH7) USB 2.0 controller"; 186184610Salfred 187184610Salfred case 0x28368086: 188184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-A"; 189184610Salfred case 0x283a8086: 190184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-B"; 191184610Salfred case 0x293a8086: 192184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 193184610Salfred case 0x293c8086: 194184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 195184610Salfred 196184610Salfred case 0x00e01033: 197184610Salfred return ("NEC uPD 720100 USB 2.0 controller"); 198184610Salfred 199184610Salfred case 0x006810de: 200184610Salfred return "NVIDIA nForce2 USB 2.0 controller"; 201184610Salfred case 0x008810de: 202184610Salfred return "NVIDIA nForce2 Ultra 400 USB 2.0 controller"; 203184610Salfred case 0x00d810de: 204184610Salfred return "NVIDIA nForce3 USB 2.0 controller"; 205184610Salfred case 0x00e810de: 206184610Salfred return "NVIDIA nForce3 250 USB 2.0 controller"; 207184610Salfred case 0x005b10de: 208184610Salfred return "NVIDIA nForce4 USB 2.0 controller"; 209195958Salfred case 0x03f210de: 210195958Salfred return "NVIDIA nForce MCP61 USB 2.0 controller"; 211184610Salfred 212184610Salfred case 0x15621131: 213184610Salfred return "Philips ISP156x USB 2.0 controller"; 214184610Salfred 215184610Salfred case 0x31041106: 216184610Salfred return ("VIA VT6202 USB 2.0 controller"); 217184610Salfred 218184610Salfred default: 219184610Salfred break; 220184610Salfred } 221184610Salfred 222184610Salfred if ((pci_get_class(self) == PCIC_SERIALBUS) 223184610Salfred && (pci_get_subclass(self) == PCIS_SERIALBUS_USB) 224184610Salfred && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) { 225184610Salfred return ("EHCI (generic) USB 2.0 controller"); 226184610Salfred } 227184610Salfred return (NULL); /* dunno */ 228184610Salfred} 229184610Salfred 230184610Salfredstatic int 231184610Salfredehci_pci_probe(device_t self) 232184610Salfred{ 233184610Salfred const char *desc = ehci_pci_match(self); 234184610Salfred 235184610Salfred if (desc) { 236184610Salfred device_set_desc(self, desc); 237184610Salfred return (0); 238184610Salfred } else { 239184610Salfred return (ENXIO); 240184610Salfred } 241184610Salfred} 242184610Salfred 243184610Salfredstatic int 244184610Salfredehci_pci_attach(device_t self) 245184610Salfred{ 246184610Salfred ehci_softc_t *sc = device_get_softc(self); 247184610Salfred int err; 248184610Salfred int rid; 249184610Salfred 250187170Sthompsa /* initialise some bus fields */ 251187170Sthompsa sc->sc_bus.parent = self; 252187170Sthompsa sc->sc_bus.devices = sc->sc_devices; 253187170Sthompsa sc->sc_bus.devices_max = EHCI_MAX_DEVICES; 254187170Sthompsa 255184610Salfred /* get all DMA memory */ 256194228Sthompsa if (usb_bus_mem_alloc_all(&sc->sc_bus, 257184610Salfred USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { 258187170Sthompsa return (ENOMEM); 259184610Salfred } 260184610Salfred 261184610Salfred pci_enable_busmaster(self); 262184610Salfred 263184610Salfred switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) { 264184610Salfred case PCI_USB_REV_PRE_1_0: 265184610Salfred case PCI_USB_REV_1_0: 266184610Salfred case PCI_USB_REV_1_1: 267184610Salfred /* 268184610Salfred * NOTE: some EHCI USB controllers have the wrong USB 269184610Salfred * revision number. It appears those controllers are 270184610Salfred * fully compliant so we just ignore this value in 271184610Salfred * some common cases. 272184610Salfred */ 273184610Salfred device_printf(self, "pre-2.0 USB revision (ignored)\n"); 274184610Salfred /* fallthrough */ 275184610Salfred case PCI_USB_REV_2_0: 276184610Salfred sc->sc_bus.usbrev = USB_REV_2_0; 277184610Salfred break; 278184610Salfred default: 279187186Sthompsa /* Quirk for Parallels Desktop 4.0 */ 280187186Sthompsa device_printf(self, "USB revision is unknown. Assuming v2.0.\n"); 281187186Sthompsa sc->sc_bus.usbrev = USB_REV_2_0; 282187186Sthompsa break; 283184610Salfred } 284184610Salfred 285184610Salfred rid = PCI_CBMEM; 286184610Salfred sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 287184610Salfred RF_ACTIVE); 288184610Salfred if (!sc->sc_io_res) { 289184610Salfred device_printf(self, "Could not map memory\n"); 290184610Salfred goto error; 291184610Salfred } 292184610Salfred sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 293184610Salfred sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 294184610Salfred sc->sc_io_size = rman_get_size(sc->sc_io_res); 295184610Salfred 296184610Salfred rid = 0; 297184610Salfred sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, 298184610Salfred RF_SHAREABLE | RF_ACTIVE); 299184610Salfred if (sc->sc_irq_res == NULL) { 300184610Salfred device_printf(self, "Could not allocate irq\n"); 301184610Salfred goto error; 302184610Salfred } 303184610Salfred sc->sc_bus.bdev = device_add_child(self, "usbus", -1); 304184610Salfred if (!sc->sc_bus.bdev) { 305184610Salfred device_printf(self, "Could not add USB device\n"); 306184610Salfred goto error; 307184610Salfred } 308184610Salfred device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 309184610Salfred 310184610Salfred /* 311184610Salfred * ehci_pci_match will never return NULL if ehci_pci_probe 312184610Salfred * succeeded 313184610Salfred */ 314184610Salfred device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self)); 315184610Salfred switch (pci_get_vendor(self)) { 316184610Salfred case PCI_EHCI_VENDORID_ACERLABS: 317184610Salfred sprintf(sc->sc_vendor, "AcerLabs"); 318184610Salfred break; 319184610Salfred case PCI_EHCI_VENDORID_AMD: 320184610Salfred sprintf(sc->sc_vendor, "AMD"); 321184610Salfred break; 322184610Salfred case PCI_EHCI_VENDORID_APPLE: 323184610Salfred sprintf(sc->sc_vendor, "Apple"); 324184610Salfred break; 325184610Salfred case PCI_EHCI_VENDORID_ATI: 326184610Salfred sprintf(sc->sc_vendor, "ATI"); 327184610Salfred break; 328184610Salfred case PCI_EHCI_VENDORID_CMDTECH: 329184610Salfred sprintf(sc->sc_vendor, "CMDTECH"); 330184610Salfred break; 331184610Salfred case PCI_EHCI_VENDORID_INTEL: 332184610Salfred sprintf(sc->sc_vendor, "Intel"); 333184610Salfred break; 334184610Salfred case PCI_EHCI_VENDORID_NEC: 335184610Salfred sprintf(sc->sc_vendor, "NEC"); 336184610Salfred break; 337184610Salfred case PCI_EHCI_VENDORID_OPTI: 338184610Salfred sprintf(sc->sc_vendor, "OPTi"); 339184610Salfred break; 340184610Salfred case PCI_EHCI_VENDORID_PHILIPS: 341184610Salfred sprintf(sc->sc_vendor, "Philips"); 342184610Salfred break; 343184610Salfred case PCI_EHCI_VENDORID_SIS: 344184610Salfred sprintf(sc->sc_vendor, "SiS"); 345184610Salfred break; 346184610Salfred case PCI_EHCI_VENDORID_NVIDIA: 347184610Salfred case PCI_EHCI_VENDORID_NVIDIA2: 348184610Salfred sprintf(sc->sc_vendor, "nVidia"); 349184610Salfred break; 350184610Salfred case PCI_EHCI_VENDORID_VIA: 351184610Salfred sprintf(sc->sc_vendor, "VIA"); 352184610Salfred break; 353184610Salfred default: 354184610Salfred if (bootverbose) 355184610Salfred device_printf(self, "(New EHCI DeviceId=0x%08x)\n", 356184610Salfred pci_get_devid(self)); 357184610Salfred sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self)); 358184610Salfred } 359184610Salfred 360184610Salfred#if (__FreeBSD_version >= 700031) 361184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 362190183Sthompsa NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 363184610Salfred#else 364184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 365190183Sthompsa (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 366184610Salfred#endif 367184610Salfred if (err) { 368184610Salfred device_printf(self, "Could not setup irq, %d\n", err); 369184610Salfred sc->sc_intr_hdl = NULL; 370184610Salfred goto error; 371184610Salfred } 372184610Salfred ehci_pci_takecontroller(self); 373184610Salfred err = ehci_init(sc); 374184610Salfred if (!err) { 375184610Salfred err = device_probe_and_attach(sc->sc_bus.bdev); 376184610Salfred } 377184610Salfred if (err) { 378184610Salfred device_printf(self, "USB init failed err=%d\n", err); 379184610Salfred goto error; 380184610Salfred } 381184610Salfred return (0); 382184610Salfred 383184610Salfrederror: 384184610Salfred ehci_pci_detach(self); 385184610Salfred return (ENXIO); 386184610Salfred} 387184610Salfred 388184610Salfredstatic int 389184610Salfredehci_pci_detach(device_t self) 390184610Salfred{ 391184610Salfred ehci_softc_t *sc = device_get_softc(self); 392184610Salfred device_t bdev; 393184610Salfred 394184610Salfred if (sc->sc_bus.bdev) { 395184610Salfred bdev = sc->sc_bus.bdev; 396184610Salfred device_detach(bdev); 397184610Salfred device_delete_child(self, bdev); 398184610Salfred } 399184610Salfred /* during module unload there are lots of children leftover */ 400184610Salfred device_delete_all_children(self); 401184610Salfred 402184610Salfred pci_disable_busmaster(self); 403184610Salfred 404184610Salfred /* 405184610Salfred * disable interrupts that might have been switched on in ehci_init 406184610Salfred */ 407184610Salfred if (sc->sc_io_res) { 408184610Salfred EWRITE4(sc, EHCI_USBINTR, 0); 409184610Salfred } 410184610Salfred if (sc->sc_irq_res && sc->sc_intr_hdl) { 411184610Salfred /* 412184610Salfred * only call ehci_detach() after ehci_init() 413184610Salfred */ 414184610Salfred ehci_detach(sc); 415184610Salfred 416184610Salfred int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); 417184610Salfred 418184610Salfred if (err) 419184610Salfred /* XXX or should we panic? */ 420184610Salfred device_printf(self, "Could not tear down irq, %d\n", 421184610Salfred err); 422184610Salfred sc->sc_intr_hdl = NULL; 423184610Salfred } 424184610Salfred if (sc->sc_irq_res) { 425184610Salfred bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); 426184610Salfred sc->sc_irq_res = NULL; 427184610Salfred } 428184610Salfred if (sc->sc_io_res) { 429184610Salfred bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, 430184610Salfred sc->sc_io_res); 431184610Salfred sc->sc_io_res = NULL; 432184610Salfred } 433194228Sthompsa usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); 434184610Salfred 435184610Salfred return (0); 436184610Salfred} 437184610Salfred 438184610Salfredstatic void 439184610Salfredehci_pci_takecontroller(device_t self) 440184610Salfred{ 441184610Salfred ehci_softc_t *sc = device_get_softc(self); 442184610Salfred uint32_t cparams; 443184610Salfred uint32_t eec; 444184610Salfred uint16_t to; 445184610Salfred uint8_t eecp; 446184610Salfred uint8_t bios_sem; 447184610Salfred 448184610Salfred cparams = EREAD4(sc, EHCI_HCCPARAMS); 449184610Salfred 450184610Salfred /* Synchronise with the BIOS if it owns the controller. */ 451184610Salfred for (eecp = EHCI_HCC_EECP(cparams); eecp != 0; 452184610Salfred eecp = EHCI_EECP_NEXT(eec)) { 453184610Salfred eec = pci_read_config(self, eecp, 4); 454184610Salfred if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) { 455184610Salfred continue; 456184610Salfred } 457184610Salfred bios_sem = pci_read_config(self, eecp + 458184610Salfred EHCI_LEGSUP_BIOS_SEM, 1); 459184610Salfred if (bios_sem == 0) { 460184610Salfred continue; 461184610Salfred } 462184610Salfred device_printf(sc->sc_bus.bdev, "waiting for BIOS " 463184610Salfred "to give up control\n"); 464184610Salfred pci_write_config(self, eecp + 465184610Salfred EHCI_LEGSUP_OS_SEM, 1, 1); 466184610Salfred to = 500; 467184610Salfred while (1) { 468184610Salfred bios_sem = pci_read_config(self, eecp + 469184610Salfred EHCI_LEGSUP_BIOS_SEM, 1); 470184610Salfred if (bios_sem == 0) 471184610Salfred break; 472184610Salfred 473184610Salfred if (--to == 0) { 474184610Salfred device_printf(sc->sc_bus.bdev, 475184610Salfred "timed out waiting for BIOS\n"); 476184610Salfred break; 477184610Salfred } 478194228Sthompsa usb_pause_mtx(NULL, hz / 100); /* wait 10ms */ 479184610Salfred } 480184610Salfred } 481184610Salfred} 482184610Salfred 483184610Salfredstatic driver_t ehci_driver = 484184610Salfred{ 485184610Salfred .name = "ehci", 486184610Salfred .methods = (device_method_t[]){ 487184610Salfred /* device interface */ 488184610Salfred DEVMETHOD(device_probe, ehci_pci_probe), 489184610Salfred DEVMETHOD(device_attach, ehci_pci_attach), 490184610Salfred DEVMETHOD(device_detach, ehci_pci_detach), 491184610Salfred DEVMETHOD(device_suspend, ehci_pci_suspend), 492184610Salfred DEVMETHOD(device_resume, ehci_pci_resume), 493184610Salfred DEVMETHOD(device_shutdown, ehci_pci_shutdown), 494184610Salfred /* bus interface */ 495184610Salfred DEVMETHOD(bus_print_child, bus_generic_print_child), 496184610Salfred 497184610Salfred {0, 0} 498184610Salfred }, 499184610Salfred .size = sizeof(struct ehci_softc), 500184610Salfred}; 501184610Salfred 502184610Salfredstatic devclass_t ehci_devclass; 503184610Salfred 504184610SalfredDRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0); 505188942SthompsaMODULE_DEPEND(ehci, usb, 1, 1, 1); 506