ehci_pci.c revision 228483
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 * 18184610Salfred * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19184610Salfred * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20184610Salfred * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21184610Salfred * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22184610Salfred * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23184610Salfred * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24184610Salfred * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25184610Salfred * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26184610Salfred * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27184610Salfred * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28184610Salfred * POSSIBILITY OF SUCH DAMAGE. 29184610Salfred */ 30184610Salfred 31184610Salfred#include <sys/cdefs.h> 32184610Salfred__FBSDID("$FreeBSD: head/sys/dev/usb/controller/ehci_pci.c 228483 2011-12-14 00:28:54Z hselasky $"); 33184610Salfred 34184610Salfred/* 35184610Salfred * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller. 36184610Salfred * 37184610Salfred * The EHCI 1.0 spec can be found at 38184610Salfred * http://developer.intel.com/technology/usb/download/ehci-r10.pdf 39184610Salfred * and the USB 2.0 spec at 40184610Salfred * http://www.usb.org/developers/docs/usb_20.zip 41184610Salfred */ 42184610Salfred 43184610Salfred/* The low level controller code for EHCI has been split into 44184610Salfred * PCI probes and EHCI specific code. This was done to facilitate the 45184610Salfred * sharing of code between *BSD's 46184610Salfred */ 47184610Salfred 48194677Sthompsa#include <sys/stdint.h> 49194677Sthompsa#include <sys/stddef.h> 50194677Sthompsa#include <sys/param.h> 51194677Sthompsa#include <sys/queue.h> 52194677Sthompsa#include <sys/types.h> 53194677Sthompsa#include <sys/systm.h> 54194677Sthompsa#include <sys/kernel.h> 55194677Sthompsa#include <sys/bus.h> 56194677Sthompsa#include <sys/module.h> 57194677Sthompsa#include <sys/lock.h> 58194677Sthompsa#include <sys/mutex.h> 59194677Sthompsa#include <sys/condvar.h> 60194677Sthompsa#include <sys/sysctl.h> 61194677Sthompsa#include <sys/sx.h> 62194677Sthompsa#include <sys/unistd.h> 63194677Sthompsa#include <sys/callout.h> 64194677Sthompsa#include <sys/malloc.h> 65194677Sthompsa#include <sys/priv.h> 66194677Sthompsa 67188942Sthompsa#include <dev/usb/usb.h> 68194677Sthompsa#include <dev/usb/usbdi.h> 69184610Salfred 70188942Sthompsa#include <dev/usb/usb_core.h> 71188942Sthompsa#include <dev/usb/usb_busdma.h> 72188942Sthompsa#include <dev/usb/usb_process.h> 73188942Sthompsa#include <dev/usb/usb_util.h> 74184610Salfred 75188942Sthompsa#include <dev/usb/usb_controller.h> 76188942Sthompsa#include <dev/usb/usb_bus.h> 77188942Sthompsa#include <dev/usb/usb_pci.h> 78188942Sthompsa#include <dev/usb/controller/ehci.h> 79198151Sthompsa#include <dev/usb/controller/ehcireg.h> 80228483Shselasky#include "usb_if.h" 81184610Salfred 82184610Salfred#define PCI_EHCI_VENDORID_ACERLABS 0x10b9 83184610Salfred#define PCI_EHCI_VENDORID_AMD 0x1022 84184610Salfred#define PCI_EHCI_VENDORID_APPLE 0x106b 85184610Salfred#define PCI_EHCI_VENDORID_ATI 0x1002 86184610Salfred#define PCI_EHCI_VENDORID_CMDTECH 0x1095 87184610Salfred#define PCI_EHCI_VENDORID_INTEL 0x8086 88184610Salfred#define PCI_EHCI_VENDORID_NEC 0x1033 89184610Salfred#define PCI_EHCI_VENDORID_OPTI 0x1045 90184610Salfred#define PCI_EHCI_VENDORID_PHILIPS 0x1131 91184610Salfred#define PCI_EHCI_VENDORID_SIS 0x1039 92184610Salfred#define PCI_EHCI_VENDORID_NVIDIA 0x12D2 93184610Salfred#define PCI_EHCI_VENDORID_NVIDIA2 0x10DE 94184610Salfred#define PCI_EHCI_VENDORID_VIA 0x1106 95184610Salfred 96184610Salfredstatic device_probe_t ehci_pci_probe; 97184610Salfredstatic device_attach_t ehci_pci_attach; 98184610Salfredstatic device_detach_t ehci_pci_detach; 99228483Shselaskystatic usb_take_controller_t ehci_pci_take_controller; 100184610Salfred 101184610Salfredstatic const char * 102184610Salfredehci_pci_match(device_t self) 103184610Salfred{ 104184610Salfred uint32_t device_id = pci_get_devid(self); 105184610Salfred 106184610Salfred switch (device_id) { 107184610Salfred case 0x268c8086: 108184610Salfred return ("Intel 63XXESB USB 2.0 controller"); 109184610Salfred 110184610Salfred case 0x523910b9: 111184610Salfred return "ALi M5239 USB 2.0 controller"; 112184610Salfred 113184610Salfred case 0x10227463: 114184610Salfred return "AMD 8111 USB 2.0 controller"; 115184610Salfred 116184610Salfred case 0x20951022: 117184610Salfred return ("AMD CS5536 (Geode) USB 2.0 controller"); 118184610Salfred 119184610Salfred case 0x43451002: 120184610Salfred return "ATI SB200 USB 2.0 controller"; 121184610Salfred case 0x43731002: 122184610Salfred return "ATI SB400 USB 2.0 controller"; 123184610Salfred 124184610Salfred case 0x25ad8086: 125184610Salfred return "Intel 6300ESB USB 2.0 controller"; 126184610Salfred case 0x24cd8086: 127184610Salfred return "Intel 82801DB/L/M (ICH4) USB 2.0 controller"; 128184610Salfred case 0x24dd8086: 129184610Salfred return "Intel 82801EB/R (ICH5) USB 2.0 controller"; 130184610Salfred case 0x265c8086: 131184610Salfred return "Intel 82801FB (ICH6) USB 2.0 controller"; 132184610Salfred case 0x27cc8086: 133184610Salfred return "Intel 82801GB/R (ICH7) USB 2.0 controller"; 134184610Salfred 135184610Salfred case 0x28368086: 136184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-A"; 137184610Salfred case 0x283a8086: 138184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-B"; 139184610Salfred case 0x293a8086: 140184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 141184610Salfred case 0x293c8086: 142184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 143200087Sthompsa case 0x3a3a8086: 144200305Sthompsa return "Intel 82801JI (ICH10) USB 2.0 controller USB-A"; 145200087Sthompsa case 0x3a3c8086: 146200305Sthompsa return "Intel 82801JI (ICH10) USB 2.0 controller USB-B"; 147200822Sthompsa case 0x3b348086: 148200822Sthompsa return ("Intel PCH USB 2.0 controller USB-A"); 149200822Sthompsa case 0x3b3c8086: 150200822Sthompsa return ("Intel PCH USB 2.0 controller USB-B"); 151184610Salfred 152184610Salfred case 0x00e01033: 153184610Salfred return ("NEC uPD 720100 USB 2.0 controller"); 154184610Salfred 155184610Salfred case 0x006810de: 156184610Salfred return "NVIDIA nForce2 USB 2.0 controller"; 157184610Salfred case 0x008810de: 158184610Salfred return "NVIDIA nForce2 Ultra 400 USB 2.0 controller"; 159184610Salfred case 0x00d810de: 160184610Salfred return "NVIDIA nForce3 USB 2.0 controller"; 161184610Salfred case 0x00e810de: 162184610Salfred return "NVIDIA nForce3 250 USB 2.0 controller"; 163184610Salfred case 0x005b10de: 164184610Salfred return "NVIDIA nForce4 USB 2.0 controller"; 165205802Sthompsa case 0x036d10de: 166205802Sthompsa return "NVIDIA nForce MCP55 USB 2.0 controller"; 167195958Salfred case 0x03f210de: 168195958Salfred return "NVIDIA nForce MCP61 USB 2.0 controller"; 169200822Sthompsa case 0x0aa610de: 170200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 171200822Sthompsa case 0x0aa910de: 172200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 173200822Sthompsa case 0x0aaa10de: 174200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 175184610Salfred 176184610Salfred case 0x15621131: 177184610Salfred return "Philips ISP156x USB 2.0 controller"; 178184610Salfred 179184610Salfred case 0x31041106: 180184610Salfred return ("VIA VT6202 USB 2.0 controller"); 181184610Salfred 182184610Salfred default: 183184610Salfred break; 184184610Salfred } 185184610Salfred 186184610Salfred if ((pci_get_class(self) == PCIC_SERIALBUS) 187184610Salfred && (pci_get_subclass(self) == PCIS_SERIALBUS_USB) 188184610Salfred && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) { 189184610Salfred return ("EHCI (generic) USB 2.0 controller"); 190184610Salfred } 191184610Salfred return (NULL); /* dunno */ 192184610Salfred} 193184610Salfred 194184610Salfredstatic int 195184610Salfredehci_pci_probe(device_t self) 196184610Salfred{ 197184610Salfred const char *desc = ehci_pci_match(self); 198184610Salfred 199184610Salfred if (desc) { 200184610Salfred device_set_desc(self, desc); 201184610Salfred return (0); 202184610Salfred } else { 203184610Salfred return (ENXIO); 204184610Salfred } 205184610Salfred} 206184610Salfred 207197554Sthompsastatic void 208197554Sthompsaehci_pci_ati_quirk(device_t self, uint8_t is_sb700) 209197554Sthompsa{ 210197554Sthompsa device_t smbdev; 211197554Sthompsa uint32_t val; 212197554Sthompsa 213197554Sthompsa if (is_sb700) { 214197554Sthompsa /* Lookup SMBUS PCI device */ 215197554Sthompsa smbdev = pci_find_device(PCI_EHCI_VENDORID_ATI, 0x4385); 216197554Sthompsa if (smbdev == NULL) 217197554Sthompsa return; 218197554Sthompsa val = pci_get_revid(smbdev); 219197554Sthompsa if (val != 0x3a && val != 0x3b) 220197554Sthompsa return; 221197554Sthompsa } 222197554Sthompsa 223197554Sthompsa /* 224197554Sthompsa * Note: this bit is described as reserved in SB700 225197554Sthompsa * Register Reference Guide. 226197554Sthompsa */ 227197554Sthompsa val = pci_read_config(self, 0x53, 1); 228197554Sthompsa if (!(val & 0x8)) { 229197554Sthompsa val |= 0x8; 230197554Sthompsa pci_write_config(self, 0x53, val, 1); 231197554Sthompsa device_printf(self, "AMD SB600/700 quirk applied\n"); 232197554Sthompsa } 233197554Sthompsa} 234197554Sthompsa 235197554Sthompsastatic void 236197554Sthompsaehci_pci_via_quirk(device_t self) 237197554Sthompsa{ 238197554Sthompsa uint32_t val; 239197554Sthompsa 240197554Sthompsa if ((pci_get_device(self) == 0x3104) && 241197554Sthompsa ((pci_get_revid(self) & 0xf0) == 0x60)) { 242197554Sthompsa /* Correct schedule sleep time to 10us */ 243197554Sthompsa val = pci_read_config(self, 0x4b, 1); 244197554Sthompsa if (val & 0x20) 245197554Sthompsa return; 246197554Sthompsa pci_write_config(self, 0x4b, val, 1); 247197554Sthompsa device_printf(self, "VIA-quirk applied\n"); 248197554Sthompsa } 249197554Sthompsa} 250197554Sthompsa 251184610Salfredstatic int 252184610Salfredehci_pci_attach(device_t self) 253184610Salfred{ 254184610Salfred ehci_softc_t *sc = device_get_softc(self); 255184610Salfred int err; 256184610Salfred int rid; 257184610Salfred 258187170Sthompsa /* initialise some bus fields */ 259187170Sthompsa sc->sc_bus.parent = self; 260187170Sthompsa sc->sc_bus.devices = sc->sc_devices; 261187170Sthompsa sc->sc_bus.devices_max = EHCI_MAX_DEVICES; 262187170Sthompsa 263184610Salfred /* get all DMA memory */ 264194228Sthompsa if (usb_bus_mem_alloc_all(&sc->sc_bus, 265184610Salfred USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { 266187170Sthompsa return (ENOMEM); 267184610Salfred } 268184610Salfred 269184610Salfred pci_enable_busmaster(self); 270184610Salfred 271184610Salfred switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) { 272184610Salfred case PCI_USB_REV_PRE_1_0: 273184610Salfred case PCI_USB_REV_1_0: 274184610Salfred case PCI_USB_REV_1_1: 275184610Salfred /* 276184610Salfred * NOTE: some EHCI USB controllers have the wrong USB 277184610Salfred * revision number. It appears those controllers are 278184610Salfred * fully compliant so we just ignore this value in 279184610Salfred * some common cases. 280184610Salfred */ 281184610Salfred device_printf(self, "pre-2.0 USB revision (ignored)\n"); 282184610Salfred /* fallthrough */ 283184610Salfred case PCI_USB_REV_2_0: 284184610Salfred break; 285184610Salfred default: 286187186Sthompsa /* Quirk for Parallels Desktop 4.0 */ 287187186Sthompsa device_printf(self, "USB revision is unknown. Assuming v2.0.\n"); 288199057Sthompsa break; 289184610Salfred } 290184610Salfred 291184610Salfred rid = PCI_CBMEM; 292184610Salfred sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 293184610Salfred RF_ACTIVE); 294184610Salfred if (!sc->sc_io_res) { 295184610Salfred device_printf(self, "Could not map memory\n"); 296184610Salfred goto error; 297184610Salfred } 298184610Salfred sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 299184610Salfred sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 300184610Salfred sc->sc_io_size = rman_get_size(sc->sc_io_res); 301184610Salfred 302184610Salfred rid = 0; 303184610Salfred sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, 304184610Salfred RF_SHAREABLE | RF_ACTIVE); 305184610Salfred if (sc->sc_irq_res == NULL) { 306184610Salfred device_printf(self, "Could not allocate irq\n"); 307184610Salfred goto error; 308184610Salfred } 309184610Salfred sc->sc_bus.bdev = device_add_child(self, "usbus", -1); 310184610Salfred if (!sc->sc_bus.bdev) { 311184610Salfred device_printf(self, "Could not add USB device\n"); 312184610Salfred goto error; 313184610Salfred } 314184610Salfred device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 315184610Salfred 316184610Salfred /* 317184610Salfred * ehci_pci_match will never return NULL if ehci_pci_probe 318184610Salfred * succeeded 319184610Salfred */ 320184610Salfred device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self)); 321184610Salfred switch (pci_get_vendor(self)) { 322184610Salfred case PCI_EHCI_VENDORID_ACERLABS: 323184610Salfred sprintf(sc->sc_vendor, "AcerLabs"); 324184610Salfred break; 325184610Salfred case PCI_EHCI_VENDORID_AMD: 326184610Salfred sprintf(sc->sc_vendor, "AMD"); 327184610Salfred break; 328184610Salfred case PCI_EHCI_VENDORID_APPLE: 329184610Salfred sprintf(sc->sc_vendor, "Apple"); 330184610Salfred break; 331184610Salfred case PCI_EHCI_VENDORID_ATI: 332184610Salfred sprintf(sc->sc_vendor, "ATI"); 333184610Salfred break; 334184610Salfred case PCI_EHCI_VENDORID_CMDTECH: 335184610Salfred sprintf(sc->sc_vendor, "CMDTECH"); 336184610Salfred break; 337184610Salfred case PCI_EHCI_VENDORID_INTEL: 338184610Salfred sprintf(sc->sc_vendor, "Intel"); 339184610Salfred break; 340184610Salfred case PCI_EHCI_VENDORID_NEC: 341184610Salfred sprintf(sc->sc_vendor, "NEC"); 342184610Salfred break; 343184610Salfred case PCI_EHCI_VENDORID_OPTI: 344184610Salfred sprintf(sc->sc_vendor, "OPTi"); 345184610Salfred break; 346184610Salfred case PCI_EHCI_VENDORID_PHILIPS: 347184610Salfred sprintf(sc->sc_vendor, "Philips"); 348184610Salfred break; 349184610Salfred case PCI_EHCI_VENDORID_SIS: 350184610Salfred sprintf(sc->sc_vendor, "SiS"); 351184610Salfred break; 352184610Salfred case PCI_EHCI_VENDORID_NVIDIA: 353184610Salfred case PCI_EHCI_VENDORID_NVIDIA2: 354184610Salfred sprintf(sc->sc_vendor, "nVidia"); 355184610Salfred break; 356184610Salfred case PCI_EHCI_VENDORID_VIA: 357184610Salfred sprintf(sc->sc_vendor, "VIA"); 358184610Salfred break; 359184610Salfred default: 360184610Salfred if (bootverbose) 361184610Salfred device_printf(self, "(New EHCI DeviceId=0x%08x)\n", 362184610Salfred pci_get_devid(self)); 363184610Salfred sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self)); 364184610Salfred } 365184610Salfred 366184610Salfred#if (__FreeBSD_version >= 700031) 367184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 368190183Sthompsa NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 369184610Salfred#else 370184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 371190183Sthompsa (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 372184610Salfred#endif 373184610Salfred if (err) { 374184610Salfred device_printf(self, "Could not setup irq, %d\n", err); 375184610Salfred sc->sc_intr_hdl = NULL; 376184610Salfred goto error; 377184610Salfred } 378228483Shselasky ehci_pci_take_controller(self); 379197554Sthompsa 380197554Sthompsa /* Undocumented quirks taken from Linux */ 381197554Sthompsa 382197554Sthompsa switch (pci_get_vendor(self)) { 383197554Sthompsa case PCI_EHCI_VENDORID_ATI: 384197554Sthompsa /* SB600 and SB700 EHCI quirk */ 385197554Sthompsa switch (pci_get_device(self)) { 386197554Sthompsa case 0x4386: 387197554Sthompsa ehci_pci_ati_quirk(self, 0); 388197554Sthompsa break; 389197554Sthompsa case 0x4396: 390197554Sthompsa ehci_pci_ati_quirk(self, 1); 391197554Sthompsa break; 392197554Sthompsa default: 393197554Sthompsa break; 394197554Sthompsa } 395197554Sthompsa break; 396197554Sthompsa 397197554Sthompsa case PCI_EHCI_VENDORID_VIA: 398197554Sthompsa ehci_pci_via_quirk(self); 399197554Sthompsa break; 400197554Sthompsa 401197554Sthompsa default: 402197554Sthompsa break; 403197554Sthompsa } 404197554Sthompsa 405199058Sthompsa /* Dropped interrupts workaround */ 406199058Sthompsa switch (pci_get_vendor(self)) { 407199058Sthompsa case PCI_EHCI_VENDORID_ATI: 408199058Sthompsa case PCI_EHCI_VENDORID_VIA: 409199058Sthompsa sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG; 410199058Sthompsa if (bootverbose) 411199058Sthompsa device_printf(self, 412199058Sthompsa "Dropped interrupts workaround enabled\n"); 413199058Sthompsa break; 414199058Sthompsa default: 415199058Sthompsa break; 416199058Sthompsa } 417199058Sthompsa 418203693Sthompsa /* Doorbell feature workaround */ 419203693Sthompsa switch (pci_get_vendor(self)) { 420203693Sthompsa case PCI_EHCI_VENDORID_NVIDIA: 421203693Sthompsa case PCI_EHCI_VENDORID_NVIDIA2: 422203693Sthompsa sc->sc_flags |= EHCI_SCFLG_IAADBUG; 423203693Sthompsa if (bootverbose) 424203693Sthompsa device_printf(self, 425203693Sthompsa "Doorbell workaround enabled\n"); 426203693Sthompsa break; 427203693Sthompsa default: 428203693Sthompsa break; 429203693Sthompsa } 430203693Sthompsa 431184610Salfred err = ehci_init(sc); 432184610Salfred if (!err) { 433184610Salfred err = device_probe_and_attach(sc->sc_bus.bdev); 434184610Salfred } 435184610Salfred if (err) { 436184610Salfred device_printf(self, "USB init failed err=%d\n", err); 437184610Salfred goto error; 438184610Salfred } 439184610Salfred return (0); 440184610Salfred 441184610Salfrederror: 442184610Salfred ehci_pci_detach(self); 443184610Salfred return (ENXIO); 444184610Salfred} 445184610Salfred 446184610Salfredstatic int 447184610Salfredehci_pci_detach(device_t self) 448184610Salfred{ 449184610Salfred ehci_softc_t *sc = device_get_softc(self); 450184610Salfred device_t bdev; 451184610Salfred 452184610Salfred if (sc->sc_bus.bdev) { 453184610Salfred bdev = sc->sc_bus.bdev; 454184610Salfred device_detach(bdev); 455184610Salfred device_delete_child(self, bdev); 456184610Salfred } 457184610Salfred /* during module unload there are lots of children leftover */ 458227849Shselasky device_delete_children(self); 459184610Salfred 460184610Salfred pci_disable_busmaster(self); 461184610Salfred 462184610Salfred if (sc->sc_irq_res && sc->sc_intr_hdl) { 463184610Salfred /* 464184610Salfred * only call ehci_detach() after ehci_init() 465184610Salfred */ 466184610Salfred ehci_detach(sc); 467184610Salfred 468184610Salfred int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); 469184610Salfred 470184610Salfred if (err) 471184610Salfred /* XXX or should we panic? */ 472184610Salfred device_printf(self, "Could not tear down irq, %d\n", 473184610Salfred err); 474184610Salfred sc->sc_intr_hdl = NULL; 475184610Salfred } 476184610Salfred if (sc->sc_irq_res) { 477184610Salfred bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); 478184610Salfred sc->sc_irq_res = NULL; 479184610Salfred } 480184610Salfred if (sc->sc_io_res) { 481184610Salfred bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, 482184610Salfred sc->sc_io_res); 483184610Salfred sc->sc_io_res = NULL; 484184610Salfred } 485194228Sthompsa usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); 486184610Salfred 487184610Salfred return (0); 488184610Salfred} 489184610Salfred 490228483Shselaskystatic int 491228483Shselaskyehci_pci_take_controller(device_t self) 492198501Sthompsa{ 493198501Sthompsa ehci_softc_t *sc = device_get_softc(self); 494198501Sthompsa uint32_t cparams; 495198501Sthompsa uint32_t eec; 496198501Sthompsa uint16_t to; 497198501Sthompsa uint8_t eecp; 498198501Sthompsa uint8_t bios_sem; 499198501Sthompsa 500198501Sthompsa cparams = EREAD4(sc, EHCI_HCCPARAMS); 501198501Sthompsa 502198501Sthompsa /* Synchronise with the BIOS if it owns the controller. */ 503198501Sthompsa for (eecp = EHCI_HCC_EECP(cparams); eecp != 0; 504198501Sthompsa eecp = EHCI_EECP_NEXT(eec)) { 505198501Sthompsa eec = pci_read_config(self, eecp, 4); 506198501Sthompsa if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) { 507198501Sthompsa continue; 508198501Sthompsa } 509198501Sthompsa bios_sem = pci_read_config(self, eecp + 510198501Sthompsa EHCI_LEGSUP_BIOS_SEM, 1); 511198501Sthompsa if (bios_sem == 0) { 512198501Sthompsa continue; 513198501Sthompsa } 514198501Sthompsa device_printf(sc->sc_bus.bdev, "waiting for BIOS " 515198501Sthompsa "to give up control\n"); 516198501Sthompsa pci_write_config(self, eecp + 517198501Sthompsa EHCI_LEGSUP_OS_SEM, 1, 1); 518198501Sthompsa to = 500; 519198501Sthompsa while (1) { 520198501Sthompsa bios_sem = pci_read_config(self, eecp + 521198501Sthompsa EHCI_LEGSUP_BIOS_SEM, 1); 522198501Sthompsa if (bios_sem == 0) 523198501Sthompsa break; 524198501Sthompsa 525198501Sthompsa if (--to == 0) { 526198501Sthompsa device_printf(sc->sc_bus.bdev, 527198501Sthompsa "timed out waiting for BIOS\n"); 528198501Sthompsa break; 529198501Sthompsa } 530198501Sthompsa usb_pause_mtx(NULL, hz / 100); /* wait 10ms */ 531198501Sthompsa } 532198501Sthompsa } 533228483Shselasky return (0); 534198501Sthompsa} 535198501Sthompsa 536228483Shselaskystatic device_method_t ehci_pci_methods[] = { 537228483Shselasky /* Device interface */ 538228483Shselasky DEVMETHOD(device_probe, ehci_pci_probe), 539228483Shselasky DEVMETHOD(device_attach, ehci_pci_attach), 540228483Shselasky DEVMETHOD(device_detach, ehci_pci_detach), 541228483Shselasky DEVMETHOD(device_suspend, bus_generic_suspend), 542228483Shselasky DEVMETHOD(device_resume, bus_generic_resume), 543228483Shselasky DEVMETHOD(device_shutdown, bus_generic_shutdown), 544228483Shselasky DEVMETHOD(usb_take_controller, ehci_pci_take_controller), 545228483Shselasky 546228483Shselasky DEVMETHOD_END 547228483Shselasky}; 548228483Shselasky 549228483Shselaskystatic driver_t ehci_driver = { 550184610Salfred .name = "ehci", 551228483Shselasky .methods = ehci_pci_methods, 552184610Salfred .size = sizeof(struct ehci_softc), 553184610Salfred}; 554184610Salfred 555184610Salfredstatic devclass_t ehci_devclass; 556184610Salfred 557184610SalfredDRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0); 558188942SthompsaMODULE_DEPEND(ehci, usb, 1, 1, 1); 559