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("$FreeBSD$"); 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> 80229096Shselasky#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; 99229096Shselaskystatic 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 0x523910b9: 108184610Salfred return "ALi M5239 USB 2.0 controller"; 109184610Salfred 110184610Salfred case 0x10227463: 111184610Salfred return "AMD 8111 USB 2.0 controller"; 112184610Salfred 113184610Salfred case 0x20951022: 114184610Salfred return ("AMD CS5536 (Geode) USB 2.0 controller"); 115184610Salfred 116184610Salfred case 0x43451002: 117184610Salfred return "ATI SB200 USB 2.0 controller"; 118184610Salfred case 0x43731002: 119184610Salfred return "ATI SB400 USB 2.0 controller"; 120238134Smav case 0x43961002: 121238134Smav return ("AMD SB7x0/SB8x0/SB9x0 USB 2.0 controller"); 122184610Salfred 123238134Smav case 0x1e268086: 124238134Smav return ("Intel Panther Point USB 2.0 controller"); 125238134Smav case 0x1e2d8086: 126238134Smav return ("Intel Panther Point USB 2.0 controller"); 127184610Salfred case 0x25ad8086: 128184610Salfred return "Intel 6300ESB USB 2.0 controller"; 129184610Salfred case 0x24cd8086: 130184610Salfred return "Intel 82801DB/L/M (ICH4) USB 2.0 controller"; 131184610Salfred case 0x24dd8086: 132184610Salfred return "Intel 82801EB/R (ICH5) USB 2.0 controller"; 133184610Salfred case 0x265c8086: 134184610Salfred return "Intel 82801FB (ICH6) USB 2.0 controller"; 135238134Smav case 0x268c8086: 136238134Smav return ("Intel 63XXESB USB 2.0 controller"); 137184610Salfred case 0x27cc8086: 138184610Salfred return "Intel 82801GB/R (ICH7) USB 2.0 controller"; 139184610Salfred case 0x28368086: 140184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-A"; 141184610Salfred case 0x283a8086: 142184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-B"; 143184610Salfred case 0x293a8086: 144184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 145184610Salfred case 0x293c8086: 146184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 147200087Sthompsa case 0x3a3a8086: 148200305Sthompsa return "Intel 82801JI (ICH10) USB 2.0 controller USB-A"; 149200087Sthompsa case 0x3a3c8086: 150200305Sthompsa return "Intel 82801JI (ICH10) USB 2.0 controller USB-B"; 151200822Sthompsa case 0x3b348086: 152200822Sthompsa return ("Intel PCH USB 2.0 controller USB-A"); 153200822Sthompsa case 0x3b3c8086: 154200822Sthompsa return ("Intel PCH USB 2.0 controller USB-B"); 155184610Salfred 156184610Salfred case 0x00e01033: 157184610Salfred return ("NEC uPD 720100 USB 2.0 controller"); 158184610Salfred 159184610Salfred case 0x006810de: 160184610Salfred return "NVIDIA nForce2 USB 2.0 controller"; 161184610Salfred case 0x008810de: 162184610Salfred return "NVIDIA nForce2 Ultra 400 USB 2.0 controller"; 163184610Salfred case 0x00d810de: 164184610Salfred return "NVIDIA nForce3 USB 2.0 controller"; 165184610Salfred case 0x00e810de: 166184610Salfred return "NVIDIA nForce3 250 USB 2.0 controller"; 167184610Salfred case 0x005b10de: 168254761Shselasky return "NVIDIA nForce CK804 USB 2.0 controller"; 169205802Sthompsa case 0x036d10de: 170205802Sthompsa return "NVIDIA nForce MCP55 USB 2.0 controller"; 171195958Salfred case 0x03f210de: 172195958Salfred return "NVIDIA nForce MCP61 USB 2.0 controller"; 173200822Sthompsa case 0x0aa610de: 174200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 175200822Sthompsa case 0x0aa910de: 176200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 177200822Sthompsa case 0x0aaa10de: 178200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 179184610Salfred 180184610Salfred case 0x15621131: 181184610Salfred return "Philips ISP156x USB 2.0 controller"; 182184610Salfred 183184610Salfred case 0x31041106: 184184610Salfred return ("VIA VT6202 USB 2.0 controller"); 185184610Salfred 186184610Salfred default: 187184610Salfred break; 188184610Salfred } 189184610Salfred 190184610Salfred if ((pci_get_class(self) == PCIC_SERIALBUS) 191184610Salfred && (pci_get_subclass(self) == PCIS_SERIALBUS_USB) 192184610Salfred && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) { 193184610Salfred return ("EHCI (generic) USB 2.0 controller"); 194184610Salfred } 195184610Salfred return (NULL); /* dunno */ 196184610Salfred} 197184610Salfred 198184610Salfredstatic int 199184610Salfredehci_pci_probe(device_t self) 200184610Salfred{ 201184610Salfred const char *desc = ehci_pci_match(self); 202184610Salfred 203184610Salfred if (desc) { 204184610Salfred device_set_desc(self, desc); 205184610Salfred return (0); 206184610Salfred } else { 207184610Salfred return (ENXIO); 208184610Salfred } 209184610Salfred} 210184610Salfred 211197554Sthompsastatic void 212197554Sthompsaehci_pci_ati_quirk(device_t self, uint8_t is_sb700) 213197554Sthompsa{ 214197554Sthompsa device_t smbdev; 215197554Sthompsa uint32_t val; 216197554Sthompsa 217197554Sthompsa if (is_sb700) { 218197554Sthompsa /* Lookup SMBUS PCI device */ 219197554Sthompsa smbdev = pci_find_device(PCI_EHCI_VENDORID_ATI, 0x4385); 220197554Sthompsa if (smbdev == NULL) 221197554Sthompsa return; 222197554Sthompsa val = pci_get_revid(smbdev); 223197554Sthompsa if (val != 0x3a && val != 0x3b) 224197554Sthompsa return; 225197554Sthompsa } 226197554Sthompsa 227197554Sthompsa /* 228197554Sthompsa * Note: this bit is described as reserved in SB700 229197554Sthompsa * Register Reference Guide. 230197554Sthompsa */ 231197554Sthompsa val = pci_read_config(self, 0x53, 1); 232197554Sthompsa if (!(val & 0x8)) { 233197554Sthompsa val |= 0x8; 234197554Sthompsa pci_write_config(self, 0x53, val, 1); 235197554Sthompsa device_printf(self, "AMD SB600/700 quirk applied\n"); 236197554Sthompsa } 237197554Sthompsa} 238197554Sthompsa 239197554Sthompsastatic void 240197554Sthompsaehci_pci_via_quirk(device_t self) 241197554Sthompsa{ 242197554Sthompsa uint32_t val; 243197554Sthompsa 244197554Sthompsa if ((pci_get_device(self) == 0x3104) && 245197554Sthompsa ((pci_get_revid(self) & 0xf0) == 0x60)) { 246197554Sthompsa /* Correct schedule sleep time to 10us */ 247197554Sthompsa val = pci_read_config(self, 0x4b, 1); 248197554Sthompsa if (val & 0x20) 249197554Sthompsa return; 250236475Smarius val |= 0x20; 251197554Sthompsa pci_write_config(self, 0x4b, val, 1); 252197554Sthompsa device_printf(self, "VIA-quirk applied\n"); 253197554Sthompsa } 254197554Sthompsa} 255197554Sthompsa 256184610Salfredstatic int 257184610Salfredehci_pci_attach(device_t self) 258184610Salfred{ 259184610Salfred ehci_softc_t *sc = device_get_softc(self); 260184610Salfred int err; 261184610Salfred int rid; 262184610Salfred 263187170Sthompsa /* initialise some bus fields */ 264187170Sthompsa sc->sc_bus.parent = self; 265187170Sthompsa sc->sc_bus.devices = sc->sc_devices; 266187170Sthompsa sc->sc_bus.devices_max = EHCI_MAX_DEVICES; 267187170Sthompsa 268184610Salfred /* get all DMA memory */ 269194228Sthompsa if (usb_bus_mem_alloc_all(&sc->sc_bus, 270184610Salfred USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { 271187170Sthompsa return (ENOMEM); 272184610Salfred } 273184610Salfred 274184610Salfred pci_enable_busmaster(self); 275184610Salfred 276184610Salfred switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) { 277184610Salfred case PCI_USB_REV_PRE_1_0: 278184610Salfred case PCI_USB_REV_1_0: 279184610Salfred case PCI_USB_REV_1_1: 280184610Salfred /* 281184610Salfred * NOTE: some EHCI USB controllers have the wrong USB 282184610Salfred * revision number. It appears those controllers are 283184610Salfred * fully compliant so we just ignore this value in 284184610Salfred * some common cases. 285184610Salfred */ 286184610Salfred device_printf(self, "pre-2.0 USB revision (ignored)\n"); 287184610Salfred /* fallthrough */ 288184610Salfred case PCI_USB_REV_2_0: 289184610Salfred break; 290184610Salfred default: 291187186Sthompsa /* Quirk for Parallels Desktop 4.0 */ 292187186Sthompsa device_printf(self, "USB revision is unknown. Assuming v2.0.\n"); 293199057Sthompsa break; 294184610Salfred } 295184610Salfred 296184610Salfred rid = PCI_CBMEM; 297184610Salfred sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 298184610Salfred RF_ACTIVE); 299184610Salfred if (!sc->sc_io_res) { 300184610Salfred device_printf(self, "Could not map memory\n"); 301184610Salfred goto error; 302184610Salfred } 303184610Salfred sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 304184610Salfred sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 305184610Salfred sc->sc_io_size = rman_get_size(sc->sc_io_res); 306184610Salfred 307184610Salfred rid = 0; 308184610Salfred sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, 309184610Salfred RF_SHAREABLE | RF_ACTIVE); 310184610Salfred if (sc->sc_irq_res == NULL) { 311184610Salfred device_printf(self, "Could not allocate irq\n"); 312184610Salfred goto error; 313184610Salfred } 314184610Salfred sc->sc_bus.bdev = device_add_child(self, "usbus", -1); 315184610Salfred if (!sc->sc_bus.bdev) { 316184610Salfred device_printf(self, "Could not add USB device\n"); 317184610Salfred goto error; 318184610Salfred } 319184610Salfred device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 320184610Salfred 321184610Salfred /* 322184610Salfred * ehci_pci_match will never return NULL if ehci_pci_probe 323184610Salfred * succeeded 324184610Salfred */ 325184610Salfred device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self)); 326184610Salfred switch (pci_get_vendor(self)) { 327184610Salfred case PCI_EHCI_VENDORID_ACERLABS: 328184610Salfred sprintf(sc->sc_vendor, "AcerLabs"); 329184610Salfred break; 330184610Salfred case PCI_EHCI_VENDORID_AMD: 331184610Salfred sprintf(sc->sc_vendor, "AMD"); 332184610Salfred break; 333184610Salfred case PCI_EHCI_VENDORID_APPLE: 334184610Salfred sprintf(sc->sc_vendor, "Apple"); 335184610Salfred break; 336184610Salfred case PCI_EHCI_VENDORID_ATI: 337184610Salfred sprintf(sc->sc_vendor, "ATI"); 338184610Salfred break; 339184610Salfred case PCI_EHCI_VENDORID_CMDTECH: 340184610Salfred sprintf(sc->sc_vendor, "CMDTECH"); 341184610Salfred break; 342184610Salfred case PCI_EHCI_VENDORID_INTEL: 343184610Salfred sprintf(sc->sc_vendor, "Intel"); 344184610Salfred break; 345184610Salfred case PCI_EHCI_VENDORID_NEC: 346184610Salfred sprintf(sc->sc_vendor, "NEC"); 347184610Salfred break; 348184610Salfred case PCI_EHCI_VENDORID_OPTI: 349184610Salfred sprintf(sc->sc_vendor, "OPTi"); 350184610Salfred break; 351184610Salfred case PCI_EHCI_VENDORID_PHILIPS: 352184610Salfred sprintf(sc->sc_vendor, "Philips"); 353184610Salfred break; 354184610Salfred case PCI_EHCI_VENDORID_SIS: 355184610Salfred sprintf(sc->sc_vendor, "SiS"); 356184610Salfred break; 357184610Salfred case PCI_EHCI_VENDORID_NVIDIA: 358184610Salfred case PCI_EHCI_VENDORID_NVIDIA2: 359184610Salfred sprintf(sc->sc_vendor, "nVidia"); 360184610Salfred break; 361184610Salfred case PCI_EHCI_VENDORID_VIA: 362184610Salfred sprintf(sc->sc_vendor, "VIA"); 363184610Salfred break; 364184610Salfred default: 365184610Salfred if (bootverbose) 366184610Salfred device_printf(self, "(New EHCI DeviceId=0x%08x)\n", 367184610Salfred pci_get_devid(self)); 368184610Salfred sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self)); 369184610Salfred } 370184610Salfred 371184610Salfred#if (__FreeBSD_version >= 700031) 372184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 373190183Sthompsa NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 374184610Salfred#else 375184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 376190183Sthompsa (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 377184610Salfred#endif 378184610Salfred if (err) { 379184610Salfred device_printf(self, "Could not setup irq, %d\n", err); 380184610Salfred sc->sc_intr_hdl = NULL; 381184610Salfred goto error; 382184610Salfred } 383229096Shselasky ehci_pci_take_controller(self); 384197554Sthompsa 385197554Sthompsa /* Undocumented quirks taken from Linux */ 386197554Sthompsa 387197554Sthompsa switch (pci_get_vendor(self)) { 388197554Sthompsa case PCI_EHCI_VENDORID_ATI: 389197554Sthompsa /* SB600 and SB700 EHCI quirk */ 390197554Sthompsa switch (pci_get_device(self)) { 391197554Sthompsa case 0x4386: 392197554Sthompsa ehci_pci_ati_quirk(self, 0); 393197554Sthompsa break; 394197554Sthompsa case 0x4396: 395197554Sthompsa ehci_pci_ati_quirk(self, 1); 396197554Sthompsa break; 397197554Sthompsa default: 398197554Sthompsa break; 399197554Sthompsa } 400197554Sthompsa break; 401197554Sthompsa 402197554Sthompsa case PCI_EHCI_VENDORID_VIA: 403197554Sthompsa ehci_pci_via_quirk(self); 404197554Sthompsa break; 405197554Sthompsa 406197554Sthompsa default: 407197554Sthompsa break; 408197554Sthompsa } 409197554Sthompsa 410199058Sthompsa /* Dropped interrupts workaround */ 411199058Sthompsa switch (pci_get_vendor(self)) { 412199058Sthompsa case PCI_EHCI_VENDORID_ATI: 413199058Sthompsa case PCI_EHCI_VENDORID_VIA: 414199058Sthompsa sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG; 415199058Sthompsa if (bootverbose) 416199058Sthompsa device_printf(self, 417199058Sthompsa "Dropped interrupts workaround enabled\n"); 418199058Sthompsa break; 419199058Sthompsa default: 420199058Sthompsa break; 421199058Sthompsa } 422199058Sthompsa 423203693Sthompsa /* Doorbell feature workaround */ 424203693Sthompsa switch (pci_get_vendor(self)) { 425203693Sthompsa case PCI_EHCI_VENDORID_NVIDIA: 426203693Sthompsa case PCI_EHCI_VENDORID_NVIDIA2: 427203693Sthompsa sc->sc_flags |= EHCI_SCFLG_IAADBUG; 428203693Sthompsa if (bootverbose) 429203693Sthompsa device_printf(self, 430203693Sthompsa "Doorbell workaround enabled\n"); 431203693Sthompsa break; 432203693Sthompsa default: 433203693Sthompsa break; 434203693Sthompsa } 435203693Sthompsa 436184610Salfred err = ehci_init(sc); 437184610Salfred if (!err) { 438184610Salfred err = device_probe_and_attach(sc->sc_bus.bdev); 439184610Salfred } 440184610Salfred if (err) { 441184610Salfred device_printf(self, "USB init failed err=%d\n", err); 442184610Salfred goto error; 443184610Salfred } 444184610Salfred return (0); 445184610Salfred 446184610Salfrederror: 447184610Salfred ehci_pci_detach(self); 448184610Salfred return (ENXIO); 449184610Salfred} 450184610Salfred 451184610Salfredstatic int 452184610Salfredehci_pci_detach(device_t self) 453184610Salfred{ 454184610Salfred ehci_softc_t *sc = device_get_softc(self); 455184610Salfred device_t bdev; 456184610Salfred 457184610Salfred if (sc->sc_bus.bdev) { 458184610Salfred bdev = sc->sc_bus.bdev; 459184610Salfred device_detach(bdev); 460184610Salfred device_delete_child(self, bdev); 461184610Salfred } 462184610Salfred /* during module unload there are lots of children leftover */ 463229118Shselasky device_delete_children(self); 464184610Salfred 465184610Salfred pci_disable_busmaster(self); 466184610Salfred 467184610Salfred if (sc->sc_irq_res && sc->sc_intr_hdl) { 468184610Salfred /* 469184610Salfred * only call ehci_detach() after ehci_init() 470184610Salfred */ 471184610Salfred ehci_detach(sc); 472184610Salfred 473184610Salfred int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); 474184610Salfred 475184610Salfred if (err) 476184610Salfred /* XXX or should we panic? */ 477184610Salfred device_printf(self, "Could not tear down irq, %d\n", 478184610Salfred err); 479184610Salfred sc->sc_intr_hdl = NULL; 480184610Salfred } 481184610Salfred if (sc->sc_irq_res) { 482184610Salfred bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); 483184610Salfred sc->sc_irq_res = NULL; 484184610Salfred } 485184610Salfred if (sc->sc_io_res) { 486184610Salfred bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, 487184610Salfred sc->sc_io_res); 488184610Salfred sc->sc_io_res = NULL; 489184610Salfred } 490194228Sthompsa usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); 491184610Salfred 492184610Salfred return (0); 493184610Salfred} 494184610Salfred 495229096Shselaskystatic int 496229096Shselaskyehci_pci_take_controller(device_t self) 497198501Sthompsa{ 498198501Sthompsa ehci_softc_t *sc = device_get_softc(self); 499198501Sthompsa uint32_t cparams; 500198501Sthompsa uint32_t eec; 501198501Sthompsa uint16_t to; 502198501Sthompsa uint8_t eecp; 503198501Sthompsa uint8_t bios_sem; 504198501Sthompsa 505198501Sthompsa cparams = EREAD4(sc, EHCI_HCCPARAMS); 506198501Sthompsa 507198501Sthompsa /* Synchronise with the BIOS if it owns the controller. */ 508198501Sthompsa for (eecp = EHCI_HCC_EECP(cparams); eecp != 0; 509198501Sthompsa eecp = EHCI_EECP_NEXT(eec)) { 510198501Sthompsa eec = pci_read_config(self, eecp, 4); 511198501Sthompsa if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) { 512198501Sthompsa continue; 513198501Sthompsa } 514198501Sthompsa bios_sem = pci_read_config(self, eecp + 515198501Sthompsa EHCI_LEGSUP_BIOS_SEM, 1); 516198501Sthompsa if (bios_sem == 0) { 517198501Sthompsa continue; 518198501Sthompsa } 519198501Sthompsa device_printf(sc->sc_bus.bdev, "waiting for BIOS " 520198501Sthompsa "to give up control\n"); 521198501Sthompsa pci_write_config(self, eecp + 522198501Sthompsa EHCI_LEGSUP_OS_SEM, 1, 1); 523198501Sthompsa to = 500; 524198501Sthompsa while (1) { 525198501Sthompsa bios_sem = pci_read_config(self, eecp + 526198501Sthompsa EHCI_LEGSUP_BIOS_SEM, 1); 527198501Sthompsa if (bios_sem == 0) 528198501Sthompsa break; 529198501Sthompsa 530198501Sthompsa if (--to == 0) { 531198501Sthompsa device_printf(sc->sc_bus.bdev, 532198501Sthompsa "timed out waiting for BIOS\n"); 533198501Sthompsa break; 534198501Sthompsa } 535198501Sthompsa usb_pause_mtx(NULL, hz / 100); /* wait 10ms */ 536198501Sthompsa } 537198501Sthompsa } 538229096Shselasky return (0); 539198501Sthompsa} 540198501Sthompsa 541229096Shselaskystatic device_method_t ehci_pci_methods[] = { 542229096Shselasky /* Device interface */ 543229096Shselasky DEVMETHOD(device_probe, ehci_pci_probe), 544229096Shselasky DEVMETHOD(device_attach, ehci_pci_attach), 545229096Shselasky DEVMETHOD(device_detach, ehci_pci_detach), 546229096Shselasky DEVMETHOD(device_suspend, bus_generic_suspend), 547229096Shselasky DEVMETHOD(device_resume, bus_generic_resume), 548229096Shselasky DEVMETHOD(device_shutdown, bus_generic_shutdown), 549229096Shselasky DEVMETHOD(usb_take_controller, ehci_pci_take_controller), 550229096Shselasky 551229096Shselasky DEVMETHOD_END 552229096Shselasky}; 553229096Shselasky 554229096Shselaskystatic driver_t ehci_driver = { 555184610Salfred .name = "ehci", 556229096Shselasky .methods = ehci_pci_methods, 557184610Salfred .size = sizeof(struct ehci_softc), 558184610Salfred}; 559184610Salfred 560184610Salfredstatic devclass_t ehci_devclass; 561184610Salfred 562184610SalfredDRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0); 563188942SthompsaMODULE_DEPEND(ehci, usb, 1, 1, 1); 564