ehci_pci.c revision 205802
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 205802 2010-03-28 20:02:50Z thompsa $"); 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/linker_set.h> 57194677Sthompsa#include <sys/module.h> 58194677Sthompsa#include <sys/lock.h> 59194677Sthompsa#include <sys/mutex.h> 60194677Sthompsa#include <sys/condvar.h> 61194677Sthompsa#include <sys/sysctl.h> 62194677Sthompsa#include <sys/sx.h> 63194677Sthompsa#include <sys/unistd.h> 64194677Sthompsa#include <sys/callout.h> 65194677Sthompsa#include <sys/malloc.h> 66194677Sthompsa#include <sys/priv.h> 67194677Sthompsa 68188942Sthompsa#include <dev/usb/usb.h> 69194677Sthompsa#include <dev/usb/usbdi.h> 70184610Salfred 71188942Sthompsa#include <dev/usb/usb_core.h> 72188942Sthompsa#include <dev/usb/usb_busdma.h> 73188942Sthompsa#include <dev/usb/usb_process.h> 74188942Sthompsa#include <dev/usb/usb_util.h> 75184610Salfred 76188942Sthompsa#include <dev/usb/usb_controller.h> 77188942Sthompsa#include <dev/usb/usb_bus.h> 78188942Sthompsa#include <dev/usb/usb_pci.h> 79188942Sthompsa#include <dev/usb/controller/ehci.h> 80198151Sthompsa#include <dev/usb/controller/ehcireg.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 96184610Salfred#define PCI_EHCI_BASE_REG 0x10 97184610Salfred 98198501Sthompsastatic void ehci_pci_takecontroller(device_t self); 99198501Sthompsa 100184610Salfredstatic device_probe_t ehci_pci_probe; 101184610Salfredstatic device_attach_t ehci_pci_attach; 102184610Salfredstatic device_detach_t ehci_pci_detach; 103184610Salfredstatic device_suspend_t ehci_pci_suspend; 104184610Salfredstatic device_resume_t ehci_pci_resume; 105184610Salfredstatic device_shutdown_t ehci_pci_shutdown; 106184610Salfred 107184610Salfredstatic int 108184610Salfredehci_pci_suspend(device_t self) 109184610Salfred{ 110184610Salfred ehci_softc_t *sc = device_get_softc(self); 111184610Salfred int err; 112184610Salfred 113184610Salfred err = bus_generic_suspend(self); 114184610Salfred if (err) 115184610Salfred return (err); 116184610Salfred ehci_suspend(sc); 117184610Salfred return (0); 118184610Salfred} 119184610Salfred 120184610Salfredstatic int 121184610Salfredehci_pci_resume(device_t self) 122184610Salfred{ 123184610Salfred ehci_softc_t *sc = device_get_softc(self); 124184610Salfred 125198501Sthompsa ehci_pci_takecontroller(self); 126184610Salfred ehci_resume(sc); 127184610Salfred 128184610Salfred bus_generic_resume(self); 129184610Salfred 130184610Salfred return (0); 131184610Salfred} 132184610Salfred 133184610Salfredstatic int 134184610Salfredehci_pci_shutdown(device_t self) 135184610Salfred{ 136184610Salfred ehci_softc_t *sc = device_get_softc(self); 137184610Salfred int err; 138184610Salfred 139184610Salfred err = bus_generic_shutdown(self); 140184610Salfred if (err) 141184610Salfred return (err); 142184610Salfred ehci_shutdown(sc); 143184610Salfred 144184610Salfred return (0); 145184610Salfred} 146184610Salfred 147184610Salfredstatic const char * 148184610Salfredehci_pci_match(device_t self) 149184610Salfred{ 150184610Salfred uint32_t device_id = pci_get_devid(self); 151184610Salfred 152184610Salfred switch (device_id) { 153184610Salfred case 0x268c8086: 154184610Salfred return ("Intel 63XXESB USB 2.0 controller"); 155184610Salfred 156184610Salfred case 0x523910b9: 157184610Salfred return "ALi M5239 USB 2.0 controller"; 158184610Salfred 159184610Salfred case 0x10227463: 160184610Salfred return "AMD 8111 USB 2.0 controller"; 161184610Salfred 162184610Salfred case 0x20951022: 163184610Salfred return ("AMD CS5536 (Geode) USB 2.0 controller"); 164184610Salfred 165184610Salfred case 0x43451002: 166184610Salfred return "ATI SB200 USB 2.0 controller"; 167184610Salfred case 0x43731002: 168184610Salfred return "ATI SB400 USB 2.0 controller"; 169184610Salfred 170184610Salfred case 0x25ad8086: 171184610Salfred return "Intel 6300ESB USB 2.0 controller"; 172184610Salfred case 0x24cd8086: 173184610Salfred return "Intel 82801DB/L/M (ICH4) USB 2.0 controller"; 174184610Salfred case 0x24dd8086: 175184610Salfred return "Intel 82801EB/R (ICH5) USB 2.0 controller"; 176184610Salfred case 0x265c8086: 177184610Salfred return "Intel 82801FB (ICH6) USB 2.0 controller"; 178184610Salfred case 0x27cc8086: 179184610Salfred return "Intel 82801GB/R (ICH7) USB 2.0 controller"; 180184610Salfred 181184610Salfred case 0x28368086: 182184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-A"; 183184610Salfred case 0x283a8086: 184184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-B"; 185184610Salfred case 0x293a8086: 186184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 187184610Salfred case 0x293c8086: 188184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 189200087Sthompsa case 0x3a3a8086: 190200305Sthompsa return "Intel 82801JI (ICH10) USB 2.0 controller USB-A"; 191200087Sthompsa case 0x3a3c8086: 192200305Sthompsa return "Intel 82801JI (ICH10) USB 2.0 controller USB-B"; 193200822Sthompsa case 0x3b348086: 194200822Sthompsa return ("Intel PCH USB 2.0 controller USB-A"); 195200822Sthompsa case 0x3b3c8086: 196200822Sthompsa return ("Intel PCH USB 2.0 controller USB-B"); 197184610Salfred 198184610Salfred case 0x00e01033: 199184610Salfred return ("NEC uPD 720100 USB 2.0 controller"); 200184610Salfred 201184610Salfred case 0x006810de: 202184610Salfred return "NVIDIA nForce2 USB 2.0 controller"; 203184610Salfred case 0x008810de: 204184610Salfred return "NVIDIA nForce2 Ultra 400 USB 2.0 controller"; 205184610Salfred case 0x00d810de: 206184610Salfred return "NVIDIA nForce3 USB 2.0 controller"; 207184610Salfred case 0x00e810de: 208184610Salfred return "NVIDIA nForce3 250 USB 2.0 controller"; 209184610Salfred case 0x005b10de: 210184610Salfred return "NVIDIA nForce4 USB 2.0 controller"; 211205802Sthompsa case 0x036d10de: 212205802Sthompsa return "NVIDIA nForce MCP55 USB 2.0 controller"; 213195958Salfred case 0x03f210de: 214195958Salfred return "NVIDIA nForce MCP61 USB 2.0 controller"; 215200822Sthompsa case 0x0aa610de: 216200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 217200822Sthompsa case 0x0aa910de: 218200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 219200822Sthompsa case 0x0aaa10de: 220200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 221184610Salfred 222184610Salfred case 0x15621131: 223184610Salfred return "Philips ISP156x USB 2.0 controller"; 224184610Salfred 225184610Salfred case 0x31041106: 226184610Salfred return ("VIA VT6202 USB 2.0 controller"); 227184610Salfred 228184610Salfred default: 229184610Salfred break; 230184610Salfred } 231184610Salfred 232184610Salfred if ((pci_get_class(self) == PCIC_SERIALBUS) 233184610Salfred && (pci_get_subclass(self) == PCIS_SERIALBUS_USB) 234184610Salfred && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) { 235184610Salfred return ("EHCI (generic) USB 2.0 controller"); 236184610Salfred } 237184610Salfred return (NULL); /* dunno */ 238184610Salfred} 239184610Salfred 240184610Salfredstatic int 241184610Salfredehci_pci_probe(device_t self) 242184610Salfred{ 243184610Salfred const char *desc = ehci_pci_match(self); 244184610Salfred 245184610Salfred if (desc) { 246184610Salfred device_set_desc(self, desc); 247184610Salfred return (0); 248184610Salfred } else { 249184610Salfred return (ENXIO); 250184610Salfred } 251184610Salfred} 252184610Salfred 253197554Sthompsastatic void 254197554Sthompsaehci_pci_ati_quirk(device_t self, uint8_t is_sb700) 255197554Sthompsa{ 256197554Sthompsa device_t smbdev; 257197554Sthompsa uint32_t val; 258197554Sthompsa 259197554Sthompsa if (is_sb700) { 260197554Sthompsa /* Lookup SMBUS PCI device */ 261197554Sthompsa smbdev = pci_find_device(PCI_EHCI_VENDORID_ATI, 0x4385); 262197554Sthompsa if (smbdev == NULL) 263197554Sthompsa return; 264197554Sthompsa val = pci_get_revid(smbdev); 265197554Sthompsa if (val != 0x3a && val != 0x3b) 266197554Sthompsa return; 267197554Sthompsa } 268197554Sthompsa 269197554Sthompsa /* 270197554Sthompsa * Note: this bit is described as reserved in SB700 271197554Sthompsa * Register Reference Guide. 272197554Sthompsa */ 273197554Sthompsa val = pci_read_config(self, 0x53, 1); 274197554Sthompsa if (!(val & 0x8)) { 275197554Sthompsa val |= 0x8; 276197554Sthompsa pci_write_config(self, 0x53, val, 1); 277197554Sthompsa device_printf(self, "AMD SB600/700 quirk applied\n"); 278197554Sthompsa } 279197554Sthompsa} 280197554Sthompsa 281197554Sthompsastatic void 282197554Sthompsaehci_pci_via_quirk(device_t self) 283197554Sthompsa{ 284197554Sthompsa uint32_t val; 285197554Sthompsa 286197554Sthompsa if ((pci_get_device(self) == 0x3104) && 287197554Sthompsa ((pci_get_revid(self) & 0xf0) == 0x60)) { 288197554Sthompsa /* Correct schedule sleep time to 10us */ 289197554Sthompsa val = pci_read_config(self, 0x4b, 1); 290197554Sthompsa if (val & 0x20) 291197554Sthompsa return; 292197554Sthompsa pci_write_config(self, 0x4b, val, 1); 293197554Sthompsa device_printf(self, "VIA-quirk applied\n"); 294197554Sthompsa } 295197554Sthompsa} 296197554Sthompsa 297184610Salfredstatic int 298184610Salfredehci_pci_attach(device_t self) 299184610Salfred{ 300184610Salfred ehci_softc_t *sc = device_get_softc(self); 301184610Salfred int err; 302184610Salfred int rid; 303184610Salfred 304187170Sthompsa /* initialise some bus fields */ 305187170Sthompsa sc->sc_bus.parent = self; 306187170Sthompsa sc->sc_bus.devices = sc->sc_devices; 307187170Sthompsa sc->sc_bus.devices_max = EHCI_MAX_DEVICES; 308187170Sthompsa 309184610Salfred /* get all DMA memory */ 310194228Sthompsa if (usb_bus_mem_alloc_all(&sc->sc_bus, 311184610Salfred USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { 312187170Sthompsa return (ENOMEM); 313184610Salfred } 314184610Salfred 315184610Salfred pci_enable_busmaster(self); 316184610Salfred 317184610Salfred switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) { 318184610Salfred case PCI_USB_REV_PRE_1_0: 319184610Salfred case PCI_USB_REV_1_0: 320184610Salfred case PCI_USB_REV_1_1: 321184610Salfred /* 322184610Salfred * NOTE: some EHCI USB controllers have the wrong USB 323184610Salfred * revision number. It appears those controllers are 324184610Salfred * fully compliant so we just ignore this value in 325184610Salfred * some common cases. 326184610Salfred */ 327184610Salfred device_printf(self, "pre-2.0 USB revision (ignored)\n"); 328184610Salfred /* fallthrough */ 329184610Salfred case PCI_USB_REV_2_0: 330184610Salfred break; 331184610Salfred default: 332187186Sthompsa /* Quirk for Parallels Desktop 4.0 */ 333187186Sthompsa device_printf(self, "USB revision is unknown. Assuming v2.0.\n"); 334199057Sthompsa break; 335184610Salfred } 336184610Salfred 337184610Salfred rid = PCI_CBMEM; 338184610Salfred sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 339184610Salfred RF_ACTIVE); 340184610Salfred if (!sc->sc_io_res) { 341184610Salfred device_printf(self, "Could not map memory\n"); 342184610Salfred goto error; 343184610Salfred } 344184610Salfred sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 345184610Salfred sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 346184610Salfred sc->sc_io_size = rman_get_size(sc->sc_io_res); 347184610Salfred 348184610Salfred rid = 0; 349184610Salfred sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, 350184610Salfred RF_SHAREABLE | RF_ACTIVE); 351184610Salfred if (sc->sc_irq_res == NULL) { 352184610Salfred device_printf(self, "Could not allocate irq\n"); 353184610Salfred goto error; 354184610Salfred } 355184610Salfred sc->sc_bus.bdev = device_add_child(self, "usbus", -1); 356184610Salfred if (!sc->sc_bus.bdev) { 357184610Salfred device_printf(self, "Could not add USB device\n"); 358184610Salfred goto error; 359184610Salfred } 360184610Salfred device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 361184610Salfred 362184610Salfred /* 363184610Salfred * ehci_pci_match will never return NULL if ehci_pci_probe 364184610Salfred * succeeded 365184610Salfred */ 366184610Salfred device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self)); 367184610Salfred switch (pci_get_vendor(self)) { 368184610Salfred case PCI_EHCI_VENDORID_ACERLABS: 369184610Salfred sprintf(sc->sc_vendor, "AcerLabs"); 370184610Salfred break; 371184610Salfred case PCI_EHCI_VENDORID_AMD: 372184610Salfred sprintf(sc->sc_vendor, "AMD"); 373184610Salfred break; 374184610Salfred case PCI_EHCI_VENDORID_APPLE: 375184610Salfred sprintf(sc->sc_vendor, "Apple"); 376184610Salfred break; 377184610Salfred case PCI_EHCI_VENDORID_ATI: 378184610Salfred sprintf(sc->sc_vendor, "ATI"); 379184610Salfred break; 380184610Salfred case PCI_EHCI_VENDORID_CMDTECH: 381184610Salfred sprintf(sc->sc_vendor, "CMDTECH"); 382184610Salfred break; 383184610Salfred case PCI_EHCI_VENDORID_INTEL: 384184610Salfred sprintf(sc->sc_vendor, "Intel"); 385184610Salfred break; 386184610Salfred case PCI_EHCI_VENDORID_NEC: 387184610Salfred sprintf(sc->sc_vendor, "NEC"); 388184610Salfred break; 389184610Salfred case PCI_EHCI_VENDORID_OPTI: 390184610Salfred sprintf(sc->sc_vendor, "OPTi"); 391184610Salfred break; 392184610Salfred case PCI_EHCI_VENDORID_PHILIPS: 393184610Salfred sprintf(sc->sc_vendor, "Philips"); 394184610Salfred break; 395184610Salfred case PCI_EHCI_VENDORID_SIS: 396184610Salfred sprintf(sc->sc_vendor, "SiS"); 397184610Salfred break; 398184610Salfred case PCI_EHCI_VENDORID_NVIDIA: 399184610Salfred case PCI_EHCI_VENDORID_NVIDIA2: 400184610Salfred sprintf(sc->sc_vendor, "nVidia"); 401184610Salfred break; 402184610Salfred case PCI_EHCI_VENDORID_VIA: 403184610Salfred sprintf(sc->sc_vendor, "VIA"); 404184610Salfred break; 405184610Salfred default: 406184610Salfred if (bootverbose) 407184610Salfred device_printf(self, "(New EHCI DeviceId=0x%08x)\n", 408184610Salfred pci_get_devid(self)); 409184610Salfred sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self)); 410184610Salfred } 411184610Salfred 412184610Salfred#if (__FreeBSD_version >= 700031) 413184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 414190183Sthompsa NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 415184610Salfred#else 416184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 417190183Sthompsa (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 418184610Salfred#endif 419184610Salfred if (err) { 420184610Salfred device_printf(self, "Could not setup irq, %d\n", err); 421184610Salfred sc->sc_intr_hdl = NULL; 422184610Salfred goto error; 423184610Salfred } 424198501Sthompsa ehci_pci_takecontroller(self); 425197554Sthompsa 426197554Sthompsa /* Undocumented quirks taken from Linux */ 427197554Sthompsa 428197554Sthompsa switch (pci_get_vendor(self)) { 429197554Sthompsa case PCI_EHCI_VENDORID_ATI: 430197554Sthompsa /* SB600 and SB700 EHCI quirk */ 431197554Sthompsa switch (pci_get_device(self)) { 432197554Sthompsa case 0x4386: 433197554Sthompsa ehci_pci_ati_quirk(self, 0); 434197554Sthompsa break; 435197554Sthompsa case 0x4396: 436197554Sthompsa ehci_pci_ati_quirk(self, 1); 437197554Sthompsa break; 438197554Sthompsa default: 439197554Sthompsa break; 440197554Sthompsa } 441197554Sthompsa break; 442197554Sthompsa 443197554Sthompsa case PCI_EHCI_VENDORID_VIA: 444197554Sthompsa ehci_pci_via_quirk(self); 445197554Sthompsa break; 446197554Sthompsa 447197554Sthompsa default: 448197554Sthompsa break; 449197554Sthompsa } 450197554Sthompsa 451199058Sthompsa /* Dropped interrupts workaround */ 452199058Sthompsa switch (pci_get_vendor(self)) { 453199058Sthompsa case PCI_EHCI_VENDORID_ATI: 454199058Sthompsa case PCI_EHCI_VENDORID_VIA: 455199058Sthompsa sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG; 456199058Sthompsa if (bootverbose) 457199058Sthompsa device_printf(self, 458199058Sthompsa "Dropped interrupts workaround enabled\n"); 459199058Sthompsa break; 460199058Sthompsa default: 461199058Sthompsa break; 462199058Sthompsa } 463199058Sthompsa 464203693Sthompsa /* Doorbell feature workaround */ 465203693Sthompsa switch (pci_get_vendor(self)) { 466203693Sthompsa case PCI_EHCI_VENDORID_NVIDIA: 467203693Sthompsa case PCI_EHCI_VENDORID_NVIDIA2: 468203693Sthompsa sc->sc_flags |= EHCI_SCFLG_IAADBUG; 469203693Sthompsa if (bootverbose) 470203693Sthompsa device_printf(self, 471203693Sthompsa "Doorbell workaround enabled\n"); 472203693Sthompsa break; 473203693Sthompsa default: 474203693Sthompsa break; 475203693Sthompsa } 476203693Sthompsa 477184610Salfred err = ehci_init(sc); 478184610Salfred if (!err) { 479184610Salfred err = device_probe_and_attach(sc->sc_bus.bdev); 480184610Salfred } 481184610Salfred if (err) { 482184610Salfred device_printf(self, "USB init failed err=%d\n", err); 483184610Salfred goto error; 484184610Salfred } 485184610Salfred return (0); 486184610Salfred 487184610Salfrederror: 488184610Salfred ehci_pci_detach(self); 489184610Salfred return (ENXIO); 490184610Salfred} 491184610Salfred 492184610Salfredstatic int 493184610Salfredehci_pci_detach(device_t self) 494184610Salfred{ 495184610Salfred ehci_softc_t *sc = device_get_softc(self); 496184610Salfred device_t bdev; 497184610Salfred 498184610Salfred if (sc->sc_bus.bdev) { 499184610Salfred bdev = sc->sc_bus.bdev; 500184610Salfred device_detach(bdev); 501184610Salfred device_delete_child(self, bdev); 502184610Salfred } 503184610Salfred /* during module unload there are lots of children leftover */ 504184610Salfred device_delete_all_children(self); 505184610Salfred 506184610Salfred pci_disable_busmaster(self); 507184610Salfred 508184610Salfred /* 509184610Salfred * disable interrupts that might have been switched on in ehci_init 510184610Salfred */ 511184610Salfred if (sc->sc_io_res) { 512184610Salfred EWRITE4(sc, EHCI_USBINTR, 0); 513184610Salfred } 514184610Salfred if (sc->sc_irq_res && sc->sc_intr_hdl) { 515184610Salfred /* 516184610Salfred * only call ehci_detach() after ehci_init() 517184610Salfred */ 518184610Salfred ehci_detach(sc); 519184610Salfred 520184610Salfred int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); 521184610Salfred 522184610Salfred if (err) 523184610Salfred /* XXX or should we panic? */ 524184610Salfred device_printf(self, "Could not tear down irq, %d\n", 525184610Salfred err); 526184610Salfred sc->sc_intr_hdl = NULL; 527184610Salfred } 528184610Salfred if (sc->sc_irq_res) { 529184610Salfred bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); 530184610Salfred sc->sc_irq_res = NULL; 531184610Salfred } 532184610Salfred if (sc->sc_io_res) { 533184610Salfred bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, 534184610Salfred sc->sc_io_res); 535184610Salfred sc->sc_io_res = NULL; 536184610Salfred } 537194228Sthompsa usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); 538184610Salfred 539184610Salfred return (0); 540184610Salfred} 541184610Salfred 542198501Sthompsastatic void 543198501Sthompsaehci_pci_takecontroller(device_t self) 544198501Sthompsa{ 545198501Sthompsa ehci_softc_t *sc = device_get_softc(self); 546198501Sthompsa uint32_t cparams; 547198501Sthompsa uint32_t eec; 548198501Sthompsa uint16_t to; 549198501Sthompsa uint8_t eecp; 550198501Sthompsa uint8_t bios_sem; 551198501Sthompsa 552198501Sthompsa cparams = EREAD4(sc, EHCI_HCCPARAMS); 553198501Sthompsa 554198501Sthompsa /* Synchronise with the BIOS if it owns the controller. */ 555198501Sthompsa for (eecp = EHCI_HCC_EECP(cparams); eecp != 0; 556198501Sthompsa eecp = EHCI_EECP_NEXT(eec)) { 557198501Sthompsa eec = pci_read_config(self, eecp, 4); 558198501Sthompsa if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) { 559198501Sthompsa continue; 560198501Sthompsa } 561198501Sthompsa bios_sem = pci_read_config(self, eecp + 562198501Sthompsa EHCI_LEGSUP_BIOS_SEM, 1); 563198501Sthompsa if (bios_sem == 0) { 564198501Sthompsa continue; 565198501Sthompsa } 566198501Sthompsa device_printf(sc->sc_bus.bdev, "waiting for BIOS " 567198501Sthompsa "to give up control\n"); 568198501Sthompsa pci_write_config(self, eecp + 569198501Sthompsa EHCI_LEGSUP_OS_SEM, 1, 1); 570198501Sthompsa to = 500; 571198501Sthompsa while (1) { 572198501Sthompsa bios_sem = pci_read_config(self, eecp + 573198501Sthompsa EHCI_LEGSUP_BIOS_SEM, 1); 574198501Sthompsa if (bios_sem == 0) 575198501Sthompsa break; 576198501Sthompsa 577198501Sthompsa if (--to == 0) { 578198501Sthompsa device_printf(sc->sc_bus.bdev, 579198501Sthompsa "timed out waiting for BIOS\n"); 580198501Sthompsa break; 581198501Sthompsa } 582198501Sthompsa usb_pause_mtx(NULL, hz / 100); /* wait 10ms */ 583198501Sthompsa } 584198501Sthompsa } 585198501Sthompsa} 586198501Sthompsa 587184610Salfredstatic driver_t ehci_driver = 588184610Salfred{ 589184610Salfred .name = "ehci", 590184610Salfred .methods = (device_method_t[]){ 591184610Salfred /* device interface */ 592184610Salfred DEVMETHOD(device_probe, ehci_pci_probe), 593184610Salfred DEVMETHOD(device_attach, ehci_pci_attach), 594184610Salfred DEVMETHOD(device_detach, ehci_pci_detach), 595184610Salfred DEVMETHOD(device_suspend, ehci_pci_suspend), 596184610Salfred DEVMETHOD(device_resume, ehci_pci_resume), 597184610Salfred DEVMETHOD(device_shutdown, ehci_pci_shutdown), 598184610Salfred /* bus interface */ 599184610Salfred DEVMETHOD(bus_print_child, bus_generic_print_child), 600184610Salfred 601184610Salfred {0, 0} 602184610Salfred }, 603184610Salfred .size = sizeof(struct ehci_softc), 604184610Salfred}; 605184610Salfred 606184610Salfredstatic devclass_t ehci_devclass; 607184610Salfred 608184610SalfredDRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0); 609188942SthompsaMODULE_DEPEND(ehci, usb, 1, 1, 1); 610