ehci_pci.c revision 200305
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 200305 2009-12-09 20:17:22Z thompsa $"); 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> 87198151Sthompsa#include <dev/usb/controller/ehcireg.h> 88184610Salfred 89184610Salfred#define PCI_EHCI_VENDORID_ACERLABS 0x10b9 90184610Salfred#define PCI_EHCI_VENDORID_AMD 0x1022 91184610Salfred#define PCI_EHCI_VENDORID_APPLE 0x106b 92184610Salfred#define PCI_EHCI_VENDORID_ATI 0x1002 93184610Salfred#define PCI_EHCI_VENDORID_CMDTECH 0x1095 94184610Salfred#define PCI_EHCI_VENDORID_INTEL 0x8086 95184610Salfred#define PCI_EHCI_VENDORID_NEC 0x1033 96184610Salfred#define PCI_EHCI_VENDORID_OPTI 0x1045 97184610Salfred#define PCI_EHCI_VENDORID_PHILIPS 0x1131 98184610Salfred#define PCI_EHCI_VENDORID_SIS 0x1039 99184610Salfred#define PCI_EHCI_VENDORID_NVIDIA 0x12D2 100184610Salfred#define PCI_EHCI_VENDORID_NVIDIA2 0x10DE 101184610Salfred#define PCI_EHCI_VENDORID_VIA 0x1106 102184610Salfred 103184610Salfred#define PCI_EHCI_BASE_REG 0x10 104184610Salfred 105198501Sthompsastatic void ehci_pci_takecontroller(device_t self); 106198501Sthompsa 107184610Salfredstatic device_probe_t ehci_pci_probe; 108184610Salfredstatic device_attach_t ehci_pci_attach; 109184610Salfredstatic device_detach_t ehci_pci_detach; 110184610Salfredstatic device_suspend_t ehci_pci_suspend; 111184610Salfredstatic device_resume_t ehci_pci_resume; 112184610Salfredstatic device_shutdown_t ehci_pci_shutdown; 113184610Salfred 114184610Salfredstatic int 115184610Salfredehci_pci_suspend(device_t self) 116184610Salfred{ 117184610Salfred ehci_softc_t *sc = device_get_softc(self); 118184610Salfred int err; 119184610Salfred 120184610Salfred err = bus_generic_suspend(self); 121184610Salfred if (err) 122184610Salfred return (err); 123184610Salfred ehci_suspend(sc); 124184610Salfred return (0); 125184610Salfred} 126184610Salfred 127184610Salfredstatic int 128184610Salfredehci_pci_resume(device_t self) 129184610Salfred{ 130184610Salfred ehci_softc_t *sc = device_get_softc(self); 131184610Salfred 132198501Sthompsa ehci_pci_takecontroller(self); 133184610Salfred ehci_resume(sc); 134184610Salfred 135184610Salfred bus_generic_resume(self); 136184610Salfred 137184610Salfred return (0); 138184610Salfred} 139184610Salfred 140184610Salfredstatic int 141184610Salfredehci_pci_shutdown(device_t self) 142184610Salfred{ 143184610Salfred ehci_softc_t *sc = device_get_softc(self); 144184610Salfred int err; 145184610Salfred 146184610Salfred err = bus_generic_shutdown(self); 147184610Salfred if (err) 148184610Salfred return (err); 149184610Salfred ehci_shutdown(sc); 150184610Salfred 151184610Salfred return (0); 152184610Salfred} 153184610Salfred 154184610Salfredstatic const char * 155184610Salfredehci_pci_match(device_t self) 156184610Salfred{ 157184610Salfred uint32_t device_id = pci_get_devid(self); 158184610Salfred 159184610Salfred switch (device_id) { 160184610Salfred case 0x268c8086: 161184610Salfred return ("Intel 63XXESB USB 2.0 controller"); 162184610Salfred 163184610Salfred case 0x523910b9: 164184610Salfred return "ALi M5239 USB 2.0 controller"; 165184610Salfred 166184610Salfred case 0x10227463: 167184610Salfred return "AMD 8111 USB 2.0 controller"; 168184610Salfred 169184610Salfred case 0x20951022: 170184610Salfred return ("AMD CS5536 (Geode) USB 2.0 controller"); 171184610Salfred 172184610Salfred case 0x43451002: 173184610Salfred return "ATI SB200 USB 2.0 controller"; 174184610Salfred case 0x43731002: 175184610Salfred return "ATI SB400 USB 2.0 controller"; 176184610Salfred 177184610Salfred case 0x25ad8086: 178184610Salfred return "Intel 6300ESB USB 2.0 controller"; 179184610Salfred case 0x24cd8086: 180184610Salfred return "Intel 82801DB/L/M (ICH4) USB 2.0 controller"; 181184610Salfred case 0x24dd8086: 182184610Salfred return "Intel 82801EB/R (ICH5) USB 2.0 controller"; 183184610Salfred case 0x265c8086: 184184610Salfred return "Intel 82801FB (ICH6) USB 2.0 controller"; 185184610Salfred case 0x27cc8086: 186184610Salfred return "Intel 82801GB/R (ICH7) USB 2.0 controller"; 187184610Salfred 188184610Salfred case 0x28368086: 189184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-A"; 190184610Salfred case 0x283a8086: 191184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-B"; 192184610Salfred case 0x293a8086: 193184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 194184610Salfred case 0x293c8086: 195184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 196200087Sthompsa case 0x3a3a8086: 197200305Sthompsa return "Intel 82801JI (ICH10) USB 2.0 controller USB-A"; 198200087Sthompsa case 0x3a3c8086: 199200305Sthompsa return "Intel 82801JI (ICH10) USB 2.0 controller USB-B"; 200184610Salfred 201184610Salfred case 0x00e01033: 202184610Salfred return ("NEC uPD 720100 USB 2.0 controller"); 203184610Salfred 204184610Salfred case 0x006810de: 205184610Salfred return "NVIDIA nForce2 USB 2.0 controller"; 206184610Salfred case 0x008810de: 207184610Salfred return "NVIDIA nForce2 Ultra 400 USB 2.0 controller"; 208184610Salfred case 0x00d810de: 209184610Salfred return "NVIDIA nForce3 USB 2.0 controller"; 210184610Salfred case 0x00e810de: 211184610Salfred return "NVIDIA nForce3 250 USB 2.0 controller"; 212184610Salfred case 0x005b10de: 213184610Salfred return "NVIDIA nForce4 USB 2.0 controller"; 214195958Salfred case 0x03f210de: 215195958Salfred return "NVIDIA nForce MCP61 USB 2.0 controller"; 216184610Salfred 217184610Salfred case 0x15621131: 218184610Salfred return "Philips ISP156x USB 2.0 controller"; 219184610Salfred 220184610Salfred case 0x31041106: 221184610Salfred return ("VIA VT6202 USB 2.0 controller"); 222184610Salfred 223184610Salfred default: 224184610Salfred break; 225184610Salfred } 226184610Salfred 227184610Salfred if ((pci_get_class(self) == PCIC_SERIALBUS) 228184610Salfred && (pci_get_subclass(self) == PCIS_SERIALBUS_USB) 229184610Salfred && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) { 230184610Salfred return ("EHCI (generic) USB 2.0 controller"); 231184610Salfred } 232184610Salfred return (NULL); /* dunno */ 233184610Salfred} 234184610Salfred 235184610Salfredstatic int 236184610Salfredehci_pci_probe(device_t self) 237184610Salfred{ 238184610Salfred const char *desc = ehci_pci_match(self); 239184610Salfred 240184610Salfred if (desc) { 241184610Salfred device_set_desc(self, desc); 242184610Salfred return (0); 243184610Salfred } else { 244184610Salfred return (ENXIO); 245184610Salfred } 246184610Salfred} 247184610Salfred 248197554Sthompsastatic void 249197554Sthompsaehci_pci_ati_quirk(device_t self, uint8_t is_sb700) 250197554Sthompsa{ 251197554Sthompsa device_t smbdev; 252197554Sthompsa uint32_t val; 253197554Sthompsa 254197554Sthompsa if (is_sb700) { 255197554Sthompsa /* Lookup SMBUS PCI device */ 256197554Sthompsa smbdev = pci_find_device(PCI_EHCI_VENDORID_ATI, 0x4385); 257197554Sthompsa if (smbdev == NULL) 258197554Sthompsa return; 259197554Sthompsa val = pci_get_revid(smbdev); 260197554Sthompsa if (val != 0x3a && val != 0x3b) 261197554Sthompsa return; 262197554Sthompsa } 263197554Sthompsa 264197554Sthompsa /* 265197554Sthompsa * Note: this bit is described as reserved in SB700 266197554Sthompsa * Register Reference Guide. 267197554Sthompsa */ 268197554Sthompsa val = pci_read_config(self, 0x53, 1); 269197554Sthompsa if (!(val & 0x8)) { 270197554Sthompsa val |= 0x8; 271197554Sthompsa pci_write_config(self, 0x53, val, 1); 272197554Sthompsa device_printf(self, "AMD SB600/700 quirk applied\n"); 273197554Sthompsa } 274197554Sthompsa} 275197554Sthompsa 276197554Sthompsastatic void 277197554Sthompsaehci_pci_via_quirk(device_t self) 278197554Sthompsa{ 279197554Sthompsa uint32_t val; 280197554Sthompsa 281197554Sthompsa if ((pci_get_device(self) == 0x3104) && 282197554Sthompsa ((pci_get_revid(self) & 0xf0) == 0x60)) { 283197554Sthompsa /* Correct schedule sleep time to 10us */ 284197554Sthompsa val = pci_read_config(self, 0x4b, 1); 285197554Sthompsa if (val & 0x20) 286197554Sthompsa return; 287197554Sthompsa pci_write_config(self, 0x4b, val, 1); 288197554Sthompsa device_printf(self, "VIA-quirk applied\n"); 289197554Sthompsa } 290197554Sthompsa} 291197554Sthompsa 292184610Salfredstatic int 293184610Salfredehci_pci_attach(device_t self) 294184610Salfred{ 295184610Salfred ehci_softc_t *sc = device_get_softc(self); 296184610Salfred int err; 297184610Salfred int rid; 298184610Salfred 299187170Sthompsa /* initialise some bus fields */ 300187170Sthompsa sc->sc_bus.parent = self; 301187170Sthompsa sc->sc_bus.devices = sc->sc_devices; 302187170Sthompsa sc->sc_bus.devices_max = EHCI_MAX_DEVICES; 303187170Sthompsa 304184610Salfred /* get all DMA memory */ 305194228Sthompsa if (usb_bus_mem_alloc_all(&sc->sc_bus, 306184610Salfred USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { 307187170Sthompsa return (ENOMEM); 308184610Salfred } 309184610Salfred 310184610Salfred pci_enable_busmaster(self); 311184610Salfred 312184610Salfred switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) { 313184610Salfred case PCI_USB_REV_PRE_1_0: 314184610Salfred case PCI_USB_REV_1_0: 315184610Salfred case PCI_USB_REV_1_1: 316184610Salfred /* 317184610Salfred * NOTE: some EHCI USB controllers have the wrong USB 318184610Salfred * revision number. It appears those controllers are 319184610Salfred * fully compliant so we just ignore this value in 320184610Salfred * some common cases. 321184610Salfred */ 322184610Salfred device_printf(self, "pre-2.0 USB revision (ignored)\n"); 323184610Salfred /* fallthrough */ 324184610Salfred case PCI_USB_REV_2_0: 325184610Salfred break; 326184610Salfred default: 327187186Sthompsa /* Quirk for Parallels Desktop 4.0 */ 328187186Sthompsa device_printf(self, "USB revision is unknown. Assuming v2.0.\n"); 329199057Sthompsa break; 330184610Salfred } 331184610Salfred 332184610Salfred rid = PCI_CBMEM; 333184610Salfred sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 334184610Salfred RF_ACTIVE); 335184610Salfred if (!sc->sc_io_res) { 336184610Salfred device_printf(self, "Could not map memory\n"); 337184610Salfred goto error; 338184610Salfred } 339184610Salfred sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 340184610Salfred sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 341184610Salfred sc->sc_io_size = rman_get_size(sc->sc_io_res); 342184610Salfred 343184610Salfred rid = 0; 344184610Salfred sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, 345184610Salfred RF_SHAREABLE | RF_ACTIVE); 346184610Salfred if (sc->sc_irq_res == NULL) { 347184610Salfred device_printf(self, "Could not allocate irq\n"); 348184610Salfred goto error; 349184610Salfred } 350184610Salfred sc->sc_bus.bdev = device_add_child(self, "usbus", -1); 351184610Salfred if (!sc->sc_bus.bdev) { 352184610Salfred device_printf(self, "Could not add USB device\n"); 353184610Salfred goto error; 354184610Salfred } 355184610Salfred device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 356184610Salfred 357184610Salfred /* 358184610Salfred * ehci_pci_match will never return NULL if ehci_pci_probe 359184610Salfred * succeeded 360184610Salfred */ 361184610Salfred device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self)); 362184610Salfred switch (pci_get_vendor(self)) { 363184610Salfred case PCI_EHCI_VENDORID_ACERLABS: 364184610Salfred sprintf(sc->sc_vendor, "AcerLabs"); 365184610Salfred break; 366184610Salfred case PCI_EHCI_VENDORID_AMD: 367184610Salfred sprintf(sc->sc_vendor, "AMD"); 368184610Salfred break; 369184610Salfred case PCI_EHCI_VENDORID_APPLE: 370184610Salfred sprintf(sc->sc_vendor, "Apple"); 371184610Salfred break; 372184610Salfred case PCI_EHCI_VENDORID_ATI: 373184610Salfred sprintf(sc->sc_vendor, "ATI"); 374184610Salfred break; 375184610Salfred case PCI_EHCI_VENDORID_CMDTECH: 376184610Salfred sprintf(sc->sc_vendor, "CMDTECH"); 377184610Salfred break; 378184610Salfred case PCI_EHCI_VENDORID_INTEL: 379184610Salfred sprintf(sc->sc_vendor, "Intel"); 380184610Salfred break; 381184610Salfred case PCI_EHCI_VENDORID_NEC: 382184610Salfred sprintf(sc->sc_vendor, "NEC"); 383184610Salfred break; 384184610Salfred case PCI_EHCI_VENDORID_OPTI: 385184610Salfred sprintf(sc->sc_vendor, "OPTi"); 386184610Salfred break; 387184610Salfred case PCI_EHCI_VENDORID_PHILIPS: 388184610Salfred sprintf(sc->sc_vendor, "Philips"); 389184610Salfred break; 390184610Salfred case PCI_EHCI_VENDORID_SIS: 391184610Salfred sprintf(sc->sc_vendor, "SiS"); 392184610Salfred break; 393184610Salfred case PCI_EHCI_VENDORID_NVIDIA: 394184610Salfred case PCI_EHCI_VENDORID_NVIDIA2: 395184610Salfred sprintf(sc->sc_vendor, "nVidia"); 396184610Salfred break; 397184610Salfred case PCI_EHCI_VENDORID_VIA: 398184610Salfred sprintf(sc->sc_vendor, "VIA"); 399184610Salfred break; 400184610Salfred default: 401184610Salfred if (bootverbose) 402184610Salfred device_printf(self, "(New EHCI DeviceId=0x%08x)\n", 403184610Salfred pci_get_devid(self)); 404184610Salfred sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self)); 405184610Salfred } 406184610Salfred 407184610Salfred#if (__FreeBSD_version >= 700031) 408184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 409190183Sthompsa NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 410184610Salfred#else 411184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 412190183Sthompsa (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 413184610Salfred#endif 414184610Salfred if (err) { 415184610Salfred device_printf(self, "Could not setup irq, %d\n", err); 416184610Salfred sc->sc_intr_hdl = NULL; 417184610Salfred goto error; 418184610Salfred } 419198501Sthompsa ehci_pci_takecontroller(self); 420197554Sthompsa 421197554Sthompsa /* Undocumented quirks taken from Linux */ 422197554Sthompsa 423197554Sthompsa switch (pci_get_vendor(self)) { 424197554Sthompsa case PCI_EHCI_VENDORID_ATI: 425197554Sthompsa /* SB600 and SB700 EHCI quirk */ 426197554Sthompsa switch (pci_get_device(self)) { 427197554Sthompsa case 0x4386: 428197554Sthompsa ehci_pci_ati_quirk(self, 0); 429197554Sthompsa break; 430197554Sthompsa case 0x4396: 431197554Sthompsa ehci_pci_ati_quirk(self, 1); 432197554Sthompsa break; 433197554Sthompsa default: 434197554Sthompsa break; 435197554Sthompsa } 436197554Sthompsa break; 437197554Sthompsa 438197554Sthompsa case PCI_EHCI_VENDORID_VIA: 439197554Sthompsa ehci_pci_via_quirk(self); 440197554Sthompsa break; 441197554Sthompsa 442197554Sthompsa default: 443197554Sthompsa break; 444197554Sthompsa } 445197554Sthompsa 446199058Sthompsa /* Dropped interrupts workaround */ 447199058Sthompsa switch (pci_get_vendor(self)) { 448199058Sthompsa case PCI_EHCI_VENDORID_ATI: 449199058Sthompsa case PCI_EHCI_VENDORID_VIA: 450199058Sthompsa sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG; 451199058Sthompsa if (bootverbose) 452199058Sthompsa device_printf(self, 453199058Sthompsa "Dropped interrupts workaround enabled\n"); 454199058Sthompsa break; 455199058Sthompsa default: 456199058Sthompsa break; 457199058Sthompsa } 458199058Sthompsa 459184610Salfred err = ehci_init(sc); 460184610Salfred if (!err) { 461184610Salfred err = device_probe_and_attach(sc->sc_bus.bdev); 462184610Salfred } 463184610Salfred if (err) { 464184610Salfred device_printf(self, "USB init failed err=%d\n", err); 465184610Salfred goto error; 466184610Salfred } 467184610Salfred return (0); 468184610Salfred 469184610Salfrederror: 470184610Salfred ehci_pci_detach(self); 471184610Salfred return (ENXIO); 472184610Salfred} 473184610Salfred 474184610Salfredstatic int 475184610Salfredehci_pci_detach(device_t self) 476184610Salfred{ 477184610Salfred ehci_softc_t *sc = device_get_softc(self); 478184610Salfred device_t bdev; 479184610Salfred 480184610Salfred if (sc->sc_bus.bdev) { 481184610Salfred bdev = sc->sc_bus.bdev; 482184610Salfred device_detach(bdev); 483184610Salfred device_delete_child(self, bdev); 484184610Salfred } 485184610Salfred /* during module unload there are lots of children leftover */ 486184610Salfred device_delete_all_children(self); 487184610Salfred 488184610Salfred pci_disable_busmaster(self); 489184610Salfred 490184610Salfred /* 491184610Salfred * disable interrupts that might have been switched on in ehci_init 492184610Salfred */ 493184610Salfred if (sc->sc_io_res) { 494184610Salfred EWRITE4(sc, EHCI_USBINTR, 0); 495184610Salfred } 496184610Salfred if (sc->sc_irq_res && sc->sc_intr_hdl) { 497184610Salfred /* 498184610Salfred * only call ehci_detach() after ehci_init() 499184610Salfred */ 500184610Salfred ehci_detach(sc); 501184610Salfred 502184610Salfred int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); 503184610Salfred 504184610Salfred if (err) 505184610Salfred /* XXX or should we panic? */ 506184610Salfred device_printf(self, "Could not tear down irq, %d\n", 507184610Salfred err); 508184610Salfred sc->sc_intr_hdl = NULL; 509184610Salfred } 510184610Salfred if (sc->sc_irq_res) { 511184610Salfred bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); 512184610Salfred sc->sc_irq_res = NULL; 513184610Salfred } 514184610Salfred if (sc->sc_io_res) { 515184610Salfred bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, 516184610Salfred sc->sc_io_res); 517184610Salfred sc->sc_io_res = NULL; 518184610Salfred } 519194228Sthompsa usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); 520184610Salfred 521184610Salfred return (0); 522184610Salfred} 523184610Salfred 524198501Sthompsastatic void 525198501Sthompsaehci_pci_takecontroller(device_t self) 526198501Sthompsa{ 527198501Sthompsa ehci_softc_t *sc = device_get_softc(self); 528198501Sthompsa uint32_t cparams; 529198501Sthompsa uint32_t eec; 530198501Sthompsa uint16_t to; 531198501Sthompsa uint8_t eecp; 532198501Sthompsa uint8_t bios_sem; 533198501Sthompsa 534198501Sthompsa cparams = EREAD4(sc, EHCI_HCCPARAMS); 535198501Sthompsa 536198501Sthompsa /* Synchronise with the BIOS if it owns the controller. */ 537198501Sthompsa for (eecp = EHCI_HCC_EECP(cparams); eecp != 0; 538198501Sthompsa eecp = EHCI_EECP_NEXT(eec)) { 539198501Sthompsa eec = pci_read_config(self, eecp, 4); 540198501Sthompsa if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) { 541198501Sthompsa continue; 542198501Sthompsa } 543198501Sthompsa bios_sem = pci_read_config(self, eecp + 544198501Sthompsa EHCI_LEGSUP_BIOS_SEM, 1); 545198501Sthompsa if (bios_sem == 0) { 546198501Sthompsa continue; 547198501Sthompsa } 548198501Sthompsa device_printf(sc->sc_bus.bdev, "waiting for BIOS " 549198501Sthompsa "to give up control\n"); 550198501Sthompsa pci_write_config(self, eecp + 551198501Sthompsa EHCI_LEGSUP_OS_SEM, 1, 1); 552198501Sthompsa to = 500; 553198501Sthompsa while (1) { 554198501Sthompsa bios_sem = pci_read_config(self, eecp + 555198501Sthompsa EHCI_LEGSUP_BIOS_SEM, 1); 556198501Sthompsa if (bios_sem == 0) 557198501Sthompsa break; 558198501Sthompsa 559198501Sthompsa if (--to == 0) { 560198501Sthompsa device_printf(sc->sc_bus.bdev, 561198501Sthompsa "timed out waiting for BIOS\n"); 562198501Sthompsa break; 563198501Sthompsa } 564198501Sthompsa usb_pause_mtx(NULL, hz / 100); /* wait 10ms */ 565198501Sthompsa } 566198501Sthompsa } 567198501Sthompsa} 568198501Sthompsa 569184610Salfredstatic driver_t ehci_driver = 570184610Salfred{ 571184610Salfred .name = "ehci", 572184610Salfred .methods = (device_method_t[]){ 573184610Salfred /* device interface */ 574184610Salfred DEVMETHOD(device_probe, ehci_pci_probe), 575184610Salfred DEVMETHOD(device_attach, ehci_pci_attach), 576184610Salfred DEVMETHOD(device_detach, ehci_pci_detach), 577184610Salfred DEVMETHOD(device_suspend, ehci_pci_suspend), 578184610Salfred DEVMETHOD(device_resume, ehci_pci_resume), 579184610Salfred DEVMETHOD(device_shutdown, ehci_pci_shutdown), 580184610Salfred /* bus interface */ 581184610Salfred DEVMETHOD(bus_print_child, bus_generic_print_child), 582184610Salfred 583184610Salfred {0, 0} 584184610Salfred }, 585184610Salfred .size = sizeof(struct ehci_softc), 586184610Salfred}; 587184610Salfred 588184610Salfredstatic devclass_t ehci_devclass; 589184610Salfred 590184610SalfredDRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0); 591188942SthompsaMODULE_DEPEND(ehci, usb, 1, 1, 1); 592