ehci_pci.c revision 227849
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 227849 2011-11-22 21:56:55Z 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> 80184610Salfred 81184610Salfred#define PCI_EHCI_VENDORID_ACERLABS 0x10b9 82184610Salfred#define PCI_EHCI_VENDORID_AMD 0x1022 83184610Salfred#define PCI_EHCI_VENDORID_APPLE 0x106b 84184610Salfred#define PCI_EHCI_VENDORID_ATI 0x1002 85184610Salfred#define PCI_EHCI_VENDORID_CMDTECH 0x1095 86184610Salfred#define PCI_EHCI_VENDORID_INTEL 0x8086 87184610Salfred#define PCI_EHCI_VENDORID_NEC 0x1033 88184610Salfred#define PCI_EHCI_VENDORID_OPTI 0x1045 89184610Salfred#define PCI_EHCI_VENDORID_PHILIPS 0x1131 90184610Salfred#define PCI_EHCI_VENDORID_SIS 0x1039 91184610Salfred#define PCI_EHCI_VENDORID_NVIDIA 0x12D2 92184610Salfred#define PCI_EHCI_VENDORID_NVIDIA2 0x10DE 93184610Salfred#define PCI_EHCI_VENDORID_VIA 0x1106 94184610Salfred 95198501Sthompsastatic void ehci_pci_takecontroller(device_t self); 96198501Sthompsa 97184610Salfredstatic device_probe_t ehci_pci_probe; 98184610Salfredstatic device_attach_t ehci_pci_attach; 99184610Salfredstatic device_detach_t ehci_pci_detach; 100184610Salfredstatic device_suspend_t ehci_pci_suspend; 101184610Salfredstatic device_resume_t ehci_pci_resume; 102184610Salfredstatic device_shutdown_t ehci_pci_shutdown; 103184610Salfred 104184610Salfredstatic int 105184610Salfredehci_pci_suspend(device_t self) 106184610Salfred{ 107184610Salfred ehci_softc_t *sc = device_get_softc(self); 108184610Salfred int err; 109184610Salfred 110184610Salfred err = bus_generic_suspend(self); 111184610Salfred if (err) 112184610Salfred return (err); 113184610Salfred ehci_suspend(sc); 114184610Salfred return (0); 115184610Salfred} 116184610Salfred 117184610Salfredstatic int 118184610Salfredehci_pci_resume(device_t self) 119184610Salfred{ 120184610Salfred ehci_softc_t *sc = device_get_softc(self); 121184610Salfred 122198501Sthompsa ehci_pci_takecontroller(self); 123184610Salfred ehci_resume(sc); 124184610Salfred 125184610Salfred bus_generic_resume(self); 126184610Salfred 127184610Salfred return (0); 128184610Salfred} 129184610Salfred 130184610Salfredstatic int 131184610Salfredehci_pci_shutdown(device_t self) 132184610Salfred{ 133184610Salfred ehci_softc_t *sc = device_get_softc(self); 134184610Salfred int err; 135184610Salfred 136184610Salfred err = bus_generic_shutdown(self); 137184610Salfred if (err) 138184610Salfred return (err); 139184610Salfred ehci_shutdown(sc); 140184610Salfred 141184610Salfred return (0); 142184610Salfred} 143184610Salfred 144184610Salfredstatic const char * 145184610Salfredehci_pci_match(device_t self) 146184610Salfred{ 147184610Salfred uint32_t device_id = pci_get_devid(self); 148184610Salfred 149184610Salfred switch (device_id) { 150184610Salfred case 0x268c8086: 151184610Salfred return ("Intel 63XXESB USB 2.0 controller"); 152184610Salfred 153184610Salfred case 0x523910b9: 154184610Salfred return "ALi M5239 USB 2.0 controller"; 155184610Salfred 156184610Salfred case 0x10227463: 157184610Salfred return "AMD 8111 USB 2.0 controller"; 158184610Salfred 159184610Salfred case 0x20951022: 160184610Salfred return ("AMD CS5536 (Geode) USB 2.0 controller"); 161184610Salfred 162184610Salfred case 0x43451002: 163184610Salfred return "ATI SB200 USB 2.0 controller"; 164184610Salfred case 0x43731002: 165184610Salfred return "ATI SB400 USB 2.0 controller"; 166184610Salfred 167184610Salfred case 0x25ad8086: 168184610Salfred return "Intel 6300ESB USB 2.0 controller"; 169184610Salfred case 0x24cd8086: 170184610Salfred return "Intel 82801DB/L/M (ICH4) USB 2.0 controller"; 171184610Salfred case 0x24dd8086: 172184610Salfred return "Intel 82801EB/R (ICH5) USB 2.0 controller"; 173184610Salfred case 0x265c8086: 174184610Salfred return "Intel 82801FB (ICH6) USB 2.0 controller"; 175184610Salfred case 0x27cc8086: 176184610Salfred return "Intel 82801GB/R (ICH7) USB 2.0 controller"; 177184610Salfred 178184610Salfred case 0x28368086: 179184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-A"; 180184610Salfred case 0x283a8086: 181184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-B"; 182184610Salfred case 0x293a8086: 183184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 184184610Salfred case 0x293c8086: 185184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 186200087Sthompsa case 0x3a3a8086: 187200305Sthompsa return "Intel 82801JI (ICH10) USB 2.0 controller USB-A"; 188200087Sthompsa case 0x3a3c8086: 189200305Sthompsa return "Intel 82801JI (ICH10) USB 2.0 controller USB-B"; 190200822Sthompsa case 0x3b348086: 191200822Sthompsa return ("Intel PCH USB 2.0 controller USB-A"); 192200822Sthompsa case 0x3b3c8086: 193200822Sthompsa return ("Intel PCH USB 2.0 controller USB-B"); 194184610Salfred 195184610Salfred case 0x00e01033: 196184610Salfred return ("NEC uPD 720100 USB 2.0 controller"); 197184610Salfred 198184610Salfred case 0x006810de: 199184610Salfred return "NVIDIA nForce2 USB 2.0 controller"; 200184610Salfred case 0x008810de: 201184610Salfred return "NVIDIA nForce2 Ultra 400 USB 2.0 controller"; 202184610Salfred case 0x00d810de: 203184610Salfred return "NVIDIA nForce3 USB 2.0 controller"; 204184610Salfred case 0x00e810de: 205184610Salfred return "NVIDIA nForce3 250 USB 2.0 controller"; 206184610Salfred case 0x005b10de: 207184610Salfred return "NVIDIA nForce4 USB 2.0 controller"; 208205802Sthompsa case 0x036d10de: 209205802Sthompsa return "NVIDIA nForce MCP55 USB 2.0 controller"; 210195958Salfred case 0x03f210de: 211195958Salfred return "NVIDIA nForce MCP61 USB 2.0 controller"; 212200822Sthompsa case 0x0aa610de: 213200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 214200822Sthompsa case 0x0aa910de: 215200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 216200822Sthompsa case 0x0aaa10de: 217200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 218184610Salfred 219184610Salfred case 0x15621131: 220184610Salfred return "Philips ISP156x USB 2.0 controller"; 221184610Salfred 222184610Salfred case 0x31041106: 223184610Salfred return ("VIA VT6202 USB 2.0 controller"); 224184610Salfred 225184610Salfred default: 226184610Salfred break; 227184610Salfred } 228184610Salfred 229184610Salfred if ((pci_get_class(self) == PCIC_SERIALBUS) 230184610Salfred && (pci_get_subclass(self) == PCIS_SERIALBUS_USB) 231184610Salfred && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) { 232184610Salfred return ("EHCI (generic) USB 2.0 controller"); 233184610Salfred } 234184610Salfred return (NULL); /* dunno */ 235184610Salfred} 236184610Salfred 237184610Salfredstatic int 238184610Salfredehci_pci_probe(device_t self) 239184610Salfred{ 240184610Salfred const char *desc = ehci_pci_match(self); 241184610Salfred 242184610Salfred if (desc) { 243184610Salfred device_set_desc(self, desc); 244184610Salfred return (0); 245184610Salfred } else { 246184610Salfred return (ENXIO); 247184610Salfred } 248184610Salfred} 249184610Salfred 250197554Sthompsastatic void 251197554Sthompsaehci_pci_ati_quirk(device_t self, uint8_t is_sb700) 252197554Sthompsa{ 253197554Sthompsa device_t smbdev; 254197554Sthompsa uint32_t val; 255197554Sthompsa 256197554Sthompsa if (is_sb700) { 257197554Sthompsa /* Lookup SMBUS PCI device */ 258197554Sthompsa smbdev = pci_find_device(PCI_EHCI_VENDORID_ATI, 0x4385); 259197554Sthompsa if (smbdev == NULL) 260197554Sthompsa return; 261197554Sthompsa val = pci_get_revid(smbdev); 262197554Sthompsa if (val != 0x3a && val != 0x3b) 263197554Sthompsa return; 264197554Sthompsa } 265197554Sthompsa 266197554Sthompsa /* 267197554Sthompsa * Note: this bit is described as reserved in SB700 268197554Sthompsa * Register Reference Guide. 269197554Sthompsa */ 270197554Sthompsa val = pci_read_config(self, 0x53, 1); 271197554Sthompsa if (!(val & 0x8)) { 272197554Sthompsa val |= 0x8; 273197554Sthompsa pci_write_config(self, 0x53, val, 1); 274197554Sthompsa device_printf(self, "AMD SB600/700 quirk applied\n"); 275197554Sthompsa } 276197554Sthompsa} 277197554Sthompsa 278197554Sthompsastatic void 279197554Sthompsaehci_pci_via_quirk(device_t self) 280197554Sthompsa{ 281197554Sthompsa uint32_t val; 282197554Sthompsa 283197554Sthompsa if ((pci_get_device(self) == 0x3104) && 284197554Sthompsa ((pci_get_revid(self) & 0xf0) == 0x60)) { 285197554Sthompsa /* Correct schedule sleep time to 10us */ 286197554Sthompsa val = pci_read_config(self, 0x4b, 1); 287197554Sthompsa if (val & 0x20) 288197554Sthompsa return; 289197554Sthompsa pci_write_config(self, 0x4b, val, 1); 290197554Sthompsa device_printf(self, "VIA-quirk applied\n"); 291197554Sthompsa } 292197554Sthompsa} 293197554Sthompsa 294184610Salfredstatic int 295184610Salfredehci_pci_attach(device_t self) 296184610Salfred{ 297184610Salfred ehci_softc_t *sc = device_get_softc(self); 298184610Salfred int err; 299184610Salfred int rid; 300184610Salfred 301187170Sthompsa /* initialise some bus fields */ 302187170Sthompsa sc->sc_bus.parent = self; 303187170Sthompsa sc->sc_bus.devices = sc->sc_devices; 304187170Sthompsa sc->sc_bus.devices_max = EHCI_MAX_DEVICES; 305187170Sthompsa 306184610Salfred /* get all DMA memory */ 307194228Sthompsa if (usb_bus_mem_alloc_all(&sc->sc_bus, 308184610Salfred USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { 309187170Sthompsa return (ENOMEM); 310184610Salfred } 311184610Salfred 312184610Salfred pci_enable_busmaster(self); 313184610Salfred 314184610Salfred switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) { 315184610Salfred case PCI_USB_REV_PRE_1_0: 316184610Salfred case PCI_USB_REV_1_0: 317184610Salfred case PCI_USB_REV_1_1: 318184610Salfred /* 319184610Salfred * NOTE: some EHCI USB controllers have the wrong USB 320184610Salfred * revision number. It appears those controllers are 321184610Salfred * fully compliant so we just ignore this value in 322184610Salfred * some common cases. 323184610Salfred */ 324184610Salfred device_printf(self, "pre-2.0 USB revision (ignored)\n"); 325184610Salfred /* fallthrough */ 326184610Salfred case PCI_USB_REV_2_0: 327184610Salfred break; 328184610Salfred default: 329187186Sthompsa /* Quirk for Parallels Desktop 4.0 */ 330187186Sthompsa device_printf(self, "USB revision is unknown. Assuming v2.0.\n"); 331199057Sthompsa break; 332184610Salfred } 333184610Salfred 334184610Salfred rid = PCI_CBMEM; 335184610Salfred sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 336184610Salfred RF_ACTIVE); 337184610Salfred if (!sc->sc_io_res) { 338184610Salfred device_printf(self, "Could not map memory\n"); 339184610Salfred goto error; 340184610Salfred } 341184610Salfred sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 342184610Salfred sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 343184610Salfred sc->sc_io_size = rman_get_size(sc->sc_io_res); 344184610Salfred 345184610Salfred rid = 0; 346184610Salfred sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, 347184610Salfred RF_SHAREABLE | RF_ACTIVE); 348184610Salfred if (sc->sc_irq_res == NULL) { 349184610Salfred device_printf(self, "Could not allocate irq\n"); 350184610Salfred goto error; 351184610Salfred } 352184610Salfred sc->sc_bus.bdev = device_add_child(self, "usbus", -1); 353184610Salfred if (!sc->sc_bus.bdev) { 354184610Salfred device_printf(self, "Could not add USB device\n"); 355184610Salfred goto error; 356184610Salfred } 357184610Salfred device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 358184610Salfred 359184610Salfred /* 360184610Salfred * ehci_pci_match will never return NULL if ehci_pci_probe 361184610Salfred * succeeded 362184610Salfred */ 363184610Salfred device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self)); 364184610Salfred switch (pci_get_vendor(self)) { 365184610Salfred case PCI_EHCI_VENDORID_ACERLABS: 366184610Salfred sprintf(sc->sc_vendor, "AcerLabs"); 367184610Salfred break; 368184610Salfred case PCI_EHCI_VENDORID_AMD: 369184610Salfred sprintf(sc->sc_vendor, "AMD"); 370184610Salfred break; 371184610Salfred case PCI_EHCI_VENDORID_APPLE: 372184610Salfred sprintf(sc->sc_vendor, "Apple"); 373184610Salfred break; 374184610Salfred case PCI_EHCI_VENDORID_ATI: 375184610Salfred sprintf(sc->sc_vendor, "ATI"); 376184610Salfred break; 377184610Salfred case PCI_EHCI_VENDORID_CMDTECH: 378184610Salfred sprintf(sc->sc_vendor, "CMDTECH"); 379184610Salfred break; 380184610Salfred case PCI_EHCI_VENDORID_INTEL: 381184610Salfred sprintf(sc->sc_vendor, "Intel"); 382184610Salfred break; 383184610Salfred case PCI_EHCI_VENDORID_NEC: 384184610Salfred sprintf(sc->sc_vendor, "NEC"); 385184610Salfred break; 386184610Salfred case PCI_EHCI_VENDORID_OPTI: 387184610Salfred sprintf(sc->sc_vendor, "OPTi"); 388184610Salfred break; 389184610Salfred case PCI_EHCI_VENDORID_PHILIPS: 390184610Salfred sprintf(sc->sc_vendor, "Philips"); 391184610Salfred break; 392184610Salfred case PCI_EHCI_VENDORID_SIS: 393184610Salfred sprintf(sc->sc_vendor, "SiS"); 394184610Salfred break; 395184610Salfred case PCI_EHCI_VENDORID_NVIDIA: 396184610Salfred case PCI_EHCI_VENDORID_NVIDIA2: 397184610Salfred sprintf(sc->sc_vendor, "nVidia"); 398184610Salfred break; 399184610Salfred case PCI_EHCI_VENDORID_VIA: 400184610Salfred sprintf(sc->sc_vendor, "VIA"); 401184610Salfred break; 402184610Salfred default: 403184610Salfred if (bootverbose) 404184610Salfred device_printf(self, "(New EHCI DeviceId=0x%08x)\n", 405184610Salfred pci_get_devid(self)); 406184610Salfred sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self)); 407184610Salfred } 408184610Salfred 409184610Salfred#if (__FreeBSD_version >= 700031) 410184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 411190183Sthompsa NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 412184610Salfred#else 413184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 414190183Sthompsa (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 415184610Salfred#endif 416184610Salfred if (err) { 417184610Salfred device_printf(self, "Could not setup irq, %d\n", err); 418184610Salfred sc->sc_intr_hdl = NULL; 419184610Salfred goto error; 420184610Salfred } 421198501Sthompsa ehci_pci_takecontroller(self); 422197554Sthompsa 423197554Sthompsa /* Undocumented quirks taken from Linux */ 424197554Sthompsa 425197554Sthompsa switch (pci_get_vendor(self)) { 426197554Sthompsa case PCI_EHCI_VENDORID_ATI: 427197554Sthompsa /* SB600 and SB700 EHCI quirk */ 428197554Sthompsa switch (pci_get_device(self)) { 429197554Sthompsa case 0x4386: 430197554Sthompsa ehci_pci_ati_quirk(self, 0); 431197554Sthompsa break; 432197554Sthompsa case 0x4396: 433197554Sthompsa ehci_pci_ati_quirk(self, 1); 434197554Sthompsa break; 435197554Sthompsa default: 436197554Sthompsa break; 437197554Sthompsa } 438197554Sthompsa break; 439197554Sthompsa 440197554Sthompsa case PCI_EHCI_VENDORID_VIA: 441197554Sthompsa ehci_pci_via_quirk(self); 442197554Sthompsa break; 443197554Sthompsa 444197554Sthompsa default: 445197554Sthompsa break; 446197554Sthompsa } 447197554Sthompsa 448199058Sthompsa /* Dropped interrupts workaround */ 449199058Sthompsa switch (pci_get_vendor(self)) { 450199058Sthompsa case PCI_EHCI_VENDORID_ATI: 451199058Sthompsa case PCI_EHCI_VENDORID_VIA: 452199058Sthompsa sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG; 453199058Sthompsa if (bootverbose) 454199058Sthompsa device_printf(self, 455199058Sthompsa "Dropped interrupts workaround enabled\n"); 456199058Sthompsa break; 457199058Sthompsa default: 458199058Sthompsa break; 459199058Sthompsa } 460199058Sthompsa 461203693Sthompsa /* Doorbell feature workaround */ 462203693Sthompsa switch (pci_get_vendor(self)) { 463203693Sthompsa case PCI_EHCI_VENDORID_NVIDIA: 464203693Sthompsa case PCI_EHCI_VENDORID_NVIDIA2: 465203693Sthompsa sc->sc_flags |= EHCI_SCFLG_IAADBUG; 466203693Sthompsa if (bootverbose) 467203693Sthompsa device_printf(self, 468203693Sthompsa "Doorbell workaround enabled\n"); 469203693Sthompsa break; 470203693Sthompsa default: 471203693Sthompsa break; 472203693Sthompsa } 473203693Sthompsa 474184610Salfred err = ehci_init(sc); 475184610Salfred if (!err) { 476184610Salfred err = device_probe_and_attach(sc->sc_bus.bdev); 477184610Salfred } 478184610Salfred if (err) { 479184610Salfred device_printf(self, "USB init failed err=%d\n", err); 480184610Salfred goto error; 481184610Salfred } 482184610Salfred return (0); 483184610Salfred 484184610Salfrederror: 485184610Salfred ehci_pci_detach(self); 486184610Salfred return (ENXIO); 487184610Salfred} 488184610Salfred 489184610Salfredstatic int 490184610Salfredehci_pci_detach(device_t self) 491184610Salfred{ 492184610Salfred ehci_softc_t *sc = device_get_softc(self); 493184610Salfred device_t bdev; 494184610Salfred 495184610Salfred if (sc->sc_bus.bdev) { 496184610Salfred bdev = sc->sc_bus.bdev; 497184610Salfred device_detach(bdev); 498184610Salfred device_delete_child(self, bdev); 499184610Salfred } 500184610Salfred /* during module unload there are lots of children leftover */ 501227849Shselasky device_delete_children(self); 502184610Salfred 503184610Salfred pci_disable_busmaster(self); 504184610Salfred 505184610Salfred if (sc->sc_irq_res && sc->sc_intr_hdl) { 506184610Salfred /* 507184610Salfred * only call ehci_detach() after ehci_init() 508184610Salfred */ 509184610Salfred ehci_detach(sc); 510184610Salfred 511184610Salfred int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); 512184610Salfred 513184610Salfred if (err) 514184610Salfred /* XXX or should we panic? */ 515184610Salfred device_printf(self, "Could not tear down irq, %d\n", 516184610Salfred err); 517184610Salfred sc->sc_intr_hdl = NULL; 518184610Salfred } 519184610Salfred if (sc->sc_irq_res) { 520184610Salfred bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); 521184610Salfred sc->sc_irq_res = NULL; 522184610Salfred } 523184610Salfred if (sc->sc_io_res) { 524184610Salfred bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, 525184610Salfred sc->sc_io_res); 526184610Salfred sc->sc_io_res = NULL; 527184610Salfred } 528194228Sthompsa usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); 529184610Salfred 530184610Salfred return (0); 531184610Salfred} 532184610Salfred 533198501Sthompsastatic void 534198501Sthompsaehci_pci_takecontroller(device_t self) 535198501Sthompsa{ 536198501Sthompsa ehci_softc_t *sc = device_get_softc(self); 537198501Sthompsa uint32_t cparams; 538198501Sthompsa uint32_t eec; 539198501Sthompsa uint16_t to; 540198501Sthompsa uint8_t eecp; 541198501Sthompsa uint8_t bios_sem; 542198501Sthompsa 543198501Sthompsa cparams = EREAD4(sc, EHCI_HCCPARAMS); 544198501Sthompsa 545198501Sthompsa /* Synchronise with the BIOS if it owns the controller. */ 546198501Sthompsa for (eecp = EHCI_HCC_EECP(cparams); eecp != 0; 547198501Sthompsa eecp = EHCI_EECP_NEXT(eec)) { 548198501Sthompsa eec = pci_read_config(self, eecp, 4); 549198501Sthompsa if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) { 550198501Sthompsa continue; 551198501Sthompsa } 552198501Sthompsa bios_sem = pci_read_config(self, eecp + 553198501Sthompsa EHCI_LEGSUP_BIOS_SEM, 1); 554198501Sthompsa if (bios_sem == 0) { 555198501Sthompsa continue; 556198501Sthompsa } 557198501Sthompsa device_printf(sc->sc_bus.bdev, "waiting for BIOS " 558198501Sthompsa "to give up control\n"); 559198501Sthompsa pci_write_config(self, eecp + 560198501Sthompsa EHCI_LEGSUP_OS_SEM, 1, 1); 561198501Sthompsa to = 500; 562198501Sthompsa while (1) { 563198501Sthompsa bios_sem = pci_read_config(self, eecp + 564198501Sthompsa EHCI_LEGSUP_BIOS_SEM, 1); 565198501Sthompsa if (bios_sem == 0) 566198501Sthompsa break; 567198501Sthompsa 568198501Sthompsa if (--to == 0) { 569198501Sthompsa device_printf(sc->sc_bus.bdev, 570198501Sthompsa "timed out waiting for BIOS\n"); 571198501Sthompsa break; 572198501Sthompsa } 573198501Sthompsa usb_pause_mtx(NULL, hz / 100); /* wait 10ms */ 574198501Sthompsa } 575198501Sthompsa } 576198501Sthompsa} 577198501Sthompsa 578184610Salfredstatic driver_t ehci_driver = 579184610Salfred{ 580184610Salfred .name = "ehci", 581184610Salfred .methods = (device_method_t[]){ 582184610Salfred /* device interface */ 583184610Salfred DEVMETHOD(device_probe, ehci_pci_probe), 584184610Salfred DEVMETHOD(device_attach, ehci_pci_attach), 585184610Salfred DEVMETHOD(device_detach, ehci_pci_detach), 586184610Salfred DEVMETHOD(device_suspend, ehci_pci_suspend), 587184610Salfred DEVMETHOD(device_resume, ehci_pci_resume), 588184610Salfred DEVMETHOD(device_shutdown, ehci_pci_shutdown), 589184610Salfred 590227843Smarius DEVMETHOD_END 591184610Salfred }, 592184610Salfred .size = sizeof(struct ehci_softc), 593184610Salfred}; 594184610Salfred 595184610Salfredstatic devclass_t ehci_devclass; 596184610Salfred 597184610SalfredDRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0); 598188942SthompsaMODULE_DEPEND(ehci, usb, 1, 1, 1); 599