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: releng/10.2/sys/dev/usb/controller/ehci_pci.c 278278 2015-02-05 20:03:02Z 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 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"; 120238015Smav case 0x43961002: 121238015Smav return ("AMD SB7x0/SB8x0/SB9x0 USB 2.0 controller"); 122184610Salfred 123276968Shselasky case 0x0f348086: 124276968Shselasky return ("Intel BayTrail USB 2.0 controller"); 125276968Shselasky case 0x1d268086: 126276968Shselasky return ("Intel Patsburg USB 2.0 controller"); 127276968Shselasky case 0x1d2d8086: 128276968Shselasky return ("Intel Patsburg USB 2.0 controller"); 129238015Smav case 0x1e268086: 130238015Smav return ("Intel Panther Point USB 2.0 controller"); 131238015Smav case 0x1e2d8086: 132238015Smav return ("Intel Panther Point USB 2.0 controller"); 133260348Smav case 0x1f2c8086: 134260348Smav return ("Intel Avoton USB 2.0 controller"); 135184610Salfred case 0x25ad8086: 136184610Salfred return "Intel 6300ESB USB 2.0 controller"; 137184610Salfred case 0x24cd8086: 138184610Salfred return "Intel 82801DB/L/M (ICH4) USB 2.0 controller"; 139184610Salfred case 0x24dd8086: 140184610Salfred return "Intel 82801EB/R (ICH5) USB 2.0 controller"; 141184610Salfred case 0x265c8086: 142184610Salfred return "Intel 82801FB (ICH6) USB 2.0 controller"; 143238015Smav case 0x268c8086: 144238015Smav return ("Intel 63XXESB USB 2.0 controller"); 145184610Salfred case 0x27cc8086: 146184610Salfred return "Intel 82801GB/R (ICH7) USB 2.0 controller"; 147184610Salfred case 0x28368086: 148184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-A"; 149184610Salfred case 0x283a8086: 150184610Salfred return "Intel 82801H (ICH8) USB 2.0 controller USB2-B"; 151184610Salfred case 0x293a8086: 152184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 153184610Salfred case 0x293c8086: 154184610Salfred return "Intel 82801I (ICH9) USB 2.0 controller"; 155200087Sthompsa case 0x3a3a8086: 156200305Sthompsa return "Intel 82801JI (ICH10) USB 2.0 controller USB-A"; 157200087Sthompsa case 0x3a3c8086: 158200305Sthompsa return "Intel 82801JI (ICH10) USB 2.0 controller USB-B"; 159200822Sthompsa case 0x3b348086: 160200822Sthompsa return ("Intel PCH USB 2.0 controller USB-A"); 161200822Sthompsa case 0x3b3c8086: 162200822Sthompsa return ("Intel PCH USB 2.0 controller USB-B"); 163269864Shselasky case 0x8c268086: 164269864Shselasky return ("Intel Lynx Point USB 2.0 controller USB-A"); 165269864Shselasky case 0x8c2d8086: 166269864Shselasky return ("Intel Lynx Point USB 2.0 controller USB-B"); 167275439Smav case 0x8ca68086: 168275439Smav return ("Intel Wildcat Point USB 2.0 controller USB-A"); 169275439Smav case 0x8cad8086: 170275439Smav return ("Intel Wildcat Point USB 2.0 controller USB-B"); 171184610Salfred 172184610Salfred case 0x00e01033: 173184610Salfred return ("NEC uPD 720100 USB 2.0 controller"); 174184610Salfred 175184610Salfred case 0x006810de: 176184610Salfred return "NVIDIA nForce2 USB 2.0 controller"; 177184610Salfred case 0x008810de: 178184610Salfred return "NVIDIA nForce2 Ultra 400 USB 2.0 controller"; 179184610Salfred case 0x00d810de: 180184610Salfred return "NVIDIA nForce3 USB 2.0 controller"; 181184610Salfred case 0x00e810de: 182184610Salfred return "NVIDIA nForce3 250 USB 2.0 controller"; 183184610Salfred case 0x005b10de: 184254438Shselasky return "NVIDIA nForce CK804 USB 2.0 controller"; 185205802Sthompsa case 0x036d10de: 186205802Sthompsa return "NVIDIA nForce MCP55 USB 2.0 controller"; 187195958Salfred case 0x03f210de: 188195958Salfred return "NVIDIA nForce MCP61 USB 2.0 controller"; 189200822Sthompsa case 0x0aa610de: 190200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 191200822Sthompsa case 0x0aa910de: 192200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 193200822Sthompsa case 0x0aaa10de: 194200822Sthompsa return "NVIDIA nForce MCP79 USB 2.0 controller"; 195184610Salfred 196184610Salfred case 0x15621131: 197184610Salfred return "Philips ISP156x USB 2.0 controller"; 198184610Salfred 199184610Salfred case 0x31041106: 200184610Salfred return ("VIA VT6202 USB 2.0 controller"); 201184610Salfred 202184610Salfred default: 203184610Salfred break; 204184610Salfred } 205184610Salfred 206184610Salfred if ((pci_get_class(self) == PCIC_SERIALBUS) 207184610Salfred && (pci_get_subclass(self) == PCIS_SERIALBUS_USB) 208184610Salfred && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) { 209184610Salfred return ("EHCI (generic) USB 2.0 controller"); 210184610Salfred } 211184610Salfred return (NULL); /* dunno */ 212184610Salfred} 213184610Salfred 214184610Salfredstatic int 215184610Salfredehci_pci_probe(device_t self) 216184610Salfred{ 217184610Salfred const char *desc = ehci_pci_match(self); 218184610Salfred 219184610Salfred if (desc) { 220184610Salfred device_set_desc(self, desc); 221184610Salfred return (0); 222184610Salfred } else { 223184610Salfred return (ENXIO); 224184610Salfred } 225184610Salfred} 226184610Salfred 227197554Sthompsastatic void 228197554Sthompsaehci_pci_ati_quirk(device_t self, uint8_t is_sb700) 229197554Sthompsa{ 230197554Sthompsa device_t smbdev; 231197554Sthompsa uint32_t val; 232197554Sthompsa 233197554Sthompsa if (is_sb700) { 234197554Sthompsa /* Lookup SMBUS PCI device */ 235197554Sthompsa smbdev = pci_find_device(PCI_EHCI_VENDORID_ATI, 0x4385); 236197554Sthompsa if (smbdev == NULL) 237197554Sthompsa return; 238197554Sthompsa val = pci_get_revid(smbdev); 239197554Sthompsa if (val != 0x3a && val != 0x3b) 240197554Sthompsa return; 241197554Sthompsa } 242197554Sthompsa 243197554Sthompsa /* 244197554Sthompsa * Note: this bit is described as reserved in SB700 245197554Sthompsa * Register Reference Guide. 246197554Sthompsa */ 247197554Sthompsa val = pci_read_config(self, 0x53, 1); 248197554Sthompsa if (!(val & 0x8)) { 249197554Sthompsa val |= 0x8; 250197554Sthompsa pci_write_config(self, 0x53, val, 1); 251197554Sthompsa device_printf(self, "AMD SB600/700 quirk applied\n"); 252197554Sthompsa } 253197554Sthompsa} 254197554Sthompsa 255197554Sthompsastatic void 256197554Sthompsaehci_pci_via_quirk(device_t self) 257197554Sthompsa{ 258197554Sthompsa uint32_t val; 259197554Sthompsa 260197554Sthompsa if ((pci_get_device(self) == 0x3104) && 261197554Sthompsa ((pci_get_revid(self) & 0xf0) == 0x60)) { 262197554Sthompsa /* Correct schedule sleep time to 10us */ 263197554Sthompsa val = pci_read_config(self, 0x4b, 1); 264197554Sthompsa if (val & 0x20) 265197554Sthompsa return; 266236073Smarius val |= 0x20; 267236073Smarius pci_write_config(self, 0x4b, val, 1); 268197554Sthompsa device_printf(self, "VIA-quirk applied\n"); 269197554Sthompsa } 270197554Sthompsa} 271197554Sthompsa 272184610Salfredstatic int 273184610Salfredehci_pci_attach(device_t self) 274184610Salfred{ 275184610Salfred ehci_softc_t *sc = device_get_softc(self); 276184610Salfred int err; 277184610Salfred int rid; 278184610Salfred 279187170Sthompsa /* initialise some bus fields */ 280187170Sthompsa sc->sc_bus.parent = self; 281187170Sthompsa sc->sc_bus.devices = sc->sc_devices; 282187170Sthompsa sc->sc_bus.devices_max = EHCI_MAX_DEVICES; 283278278Shselasky sc->sc_bus.dma_bits = 32; 284187170Sthompsa 285184610Salfred /* get all DMA memory */ 286194228Sthompsa if (usb_bus_mem_alloc_all(&sc->sc_bus, 287184610Salfred USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { 288187170Sthompsa return (ENOMEM); 289184610Salfred } 290184610Salfred 291184610Salfred pci_enable_busmaster(self); 292184610Salfred 293184610Salfred switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) { 294184610Salfred case PCI_USB_REV_PRE_1_0: 295184610Salfred case PCI_USB_REV_1_0: 296184610Salfred case PCI_USB_REV_1_1: 297184610Salfred /* 298184610Salfred * NOTE: some EHCI USB controllers have the wrong USB 299184610Salfred * revision number. It appears those controllers are 300184610Salfred * fully compliant so we just ignore this value in 301184610Salfred * some common cases. 302184610Salfred */ 303184610Salfred device_printf(self, "pre-2.0 USB revision (ignored)\n"); 304184610Salfred /* fallthrough */ 305184610Salfred case PCI_USB_REV_2_0: 306184610Salfred break; 307184610Salfred default: 308187186Sthompsa /* Quirk for Parallels Desktop 4.0 */ 309187186Sthompsa device_printf(self, "USB revision is unknown. Assuming v2.0.\n"); 310199057Sthompsa break; 311184610Salfred } 312184610Salfred 313184610Salfred rid = PCI_CBMEM; 314184610Salfred sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 315184610Salfred RF_ACTIVE); 316184610Salfred if (!sc->sc_io_res) { 317184610Salfred device_printf(self, "Could not map memory\n"); 318184610Salfred goto error; 319184610Salfred } 320184610Salfred sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 321184610Salfred sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 322184610Salfred sc->sc_io_size = rman_get_size(sc->sc_io_res); 323184610Salfred 324184610Salfred rid = 0; 325184610Salfred sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, 326184610Salfred RF_SHAREABLE | RF_ACTIVE); 327184610Salfred if (sc->sc_irq_res == NULL) { 328184610Salfred device_printf(self, "Could not allocate irq\n"); 329184610Salfred goto error; 330184610Salfred } 331184610Salfred sc->sc_bus.bdev = device_add_child(self, "usbus", -1); 332184610Salfred if (!sc->sc_bus.bdev) { 333184610Salfred device_printf(self, "Could not add USB device\n"); 334184610Salfred goto error; 335184610Salfred } 336184610Salfred device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 337184610Salfred 338184610Salfred /* 339184610Salfred * ehci_pci_match will never return NULL if ehci_pci_probe 340184610Salfred * succeeded 341184610Salfred */ 342184610Salfred device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self)); 343184610Salfred switch (pci_get_vendor(self)) { 344184610Salfred case PCI_EHCI_VENDORID_ACERLABS: 345184610Salfred sprintf(sc->sc_vendor, "AcerLabs"); 346184610Salfred break; 347184610Salfred case PCI_EHCI_VENDORID_AMD: 348184610Salfred sprintf(sc->sc_vendor, "AMD"); 349184610Salfred break; 350184610Salfred case PCI_EHCI_VENDORID_APPLE: 351184610Salfred sprintf(sc->sc_vendor, "Apple"); 352184610Salfred break; 353184610Salfred case PCI_EHCI_VENDORID_ATI: 354184610Salfred sprintf(sc->sc_vendor, "ATI"); 355184610Salfred break; 356184610Salfred case PCI_EHCI_VENDORID_CMDTECH: 357184610Salfred sprintf(sc->sc_vendor, "CMDTECH"); 358184610Salfred break; 359184610Salfred case PCI_EHCI_VENDORID_INTEL: 360184610Salfred sprintf(sc->sc_vendor, "Intel"); 361184610Salfred break; 362184610Salfred case PCI_EHCI_VENDORID_NEC: 363184610Salfred sprintf(sc->sc_vendor, "NEC"); 364184610Salfred break; 365184610Salfred case PCI_EHCI_VENDORID_OPTI: 366184610Salfred sprintf(sc->sc_vendor, "OPTi"); 367184610Salfred break; 368184610Salfred case PCI_EHCI_VENDORID_PHILIPS: 369184610Salfred sprintf(sc->sc_vendor, "Philips"); 370184610Salfred break; 371184610Salfred case PCI_EHCI_VENDORID_SIS: 372184610Salfred sprintf(sc->sc_vendor, "SiS"); 373184610Salfred break; 374184610Salfred case PCI_EHCI_VENDORID_NVIDIA: 375184610Salfred case PCI_EHCI_VENDORID_NVIDIA2: 376184610Salfred sprintf(sc->sc_vendor, "nVidia"); 377184610Salfred break; 378184610Salfred case PCI_EHCI_VENDORID_VIA: 379184610Salfred sprintf(sc->sc_vendor, "VIA"); 380184610Salfred break; 381184610Salfred default: 382184610Salfred if (bootverbose) 383184610Salfred device_printf(self, "(New EHCI DeviceId=0x%08x)\n", 384184610Salfred pci_get_devid(self)); 385184610Salfred sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self)); 386184610Salfred } 387184610Salfred 388184610Salfred#if (__FreeBSD_version >= 700031) 389184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 390190183Sthompsa NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 391184610Salfred#else 392184610Salfred err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 393190183Sthompsa (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 394184610Salfred#endif 395184610Salfred if (err) { 396184610Salfred device_printf(self, "Could not setup irq, %d\n", err); 397184610Salfred sc->sc_intr_hdl = NULL; 398184610Salfred goto error; 399184610Salfred } 400228483Shselasky ehci_pci_take_controller(self); 401197554Sthompsa 402197554Sthompsa /* Undocumented quirks taken from Linux */ 403197554Sthompsa 404197554Sthompsa switch (pci_get_vendor(self)) { 405197554Sthompsa case PCI_EHCI_VENDORID_ATI: 406197554Sthompsa /* SB600 and SB700 EHCI quirk */ 407197554Sthompsa switch (pci_get_device(self)) { 408197554Sthompsa case 0x4386: 409197554Sthompsa ehci_pci_ati_quirk(self, 0); 410197554Sthompsa break; 411197554Sthompsa case 0x4396: 412197554Sthompsa ehci_pci_ati_quirk(self, 1); 413197554Sthompsa break; 414197554Sthompsa default: 415197554Sthompsa break; 416197554Sthompsa } 417197554Sthompsa break; 418197554Sthompsa 419197554Sthompsa case PCI_EHCI_VENDORID_VIA: 420197554Sthompsa ehci_pci_via_quirk(self); 421197554Sthompsa break; 422197554Sthompsa 423197554Sthompsa default: 424197554Sthompsa break; 425197554Sthompsa } 426197554Sthompsa 427199058Sthompsa /* Dropped interrupts workaround */ 428199058Sthompsa switch (pci_get_vendor(self)) { 429199058Sthompsa case PCI_EHCI_VENDORID_ATI: 430199058Sthompsa case PCI_EHCI_VENDORID_VIA: 431199058Sthompsa sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG; 432199058Sthompsa if (bootverbose) 433199058Sthompsa device_printf(self, 434199058Sthompsa "Dropped interrupts workaround enabled\n"); 435199058Sthompsa break; 436199058Sthompsa default: 437199058Sthompsa break; 438199058Sthompsa } 439199058Sthompsa 440203693Sthompsa /* Doorbell feature workaround */ 441203693Sthompsa switch (pci_get_vendor(self)) { 442203693Sthompsa case PCI_EHCI_VENDORID_NVIDIA: 443203693Sthompsa case PCI_EHCI_VENDORID_NVIDIA2: 444203693Sthompsa sc->sc_flags |= EHCI_SCFLG_IAADBUG; 445203693Sthompsa if (bootverbose) 446203693Sthompsa device_printf(self, 447203693Sthompsa "Doorbell workaround enabled\n"); 448203693Sthompsa break; 449203693Sthompsa default: 450203693Sthompsa break; 451203693Sthompsa } 452203693Sthompsa 453184610Salfred err = ehci_init(sc); 454184610Salfred if (!err) { 455184610Salfred err = device_probe_and_attach(sc->sc_bus.bdev); 456184610Salfred } 457184610Salfred if (err) { 458184610Salfred device_printf(self, "USB init failed err=%d\n", err); 459184610Salfred goto error; 460184610Salfred } 461184610Salfred return (0); 462184610Salfred 463184610Salfrederror: 464184610Salfred ehci_pci_detach(self); 465184610Salfred return (ENXIO); 466184610Salfred} 467184610Salfred 468184610Salfredstatic int 469184610Salfredehci_pci_detach(device_t self) 470184610Salfred{ 471184610Salfred ehci_softc_t *sc = device_get_softc(self); 472184610Salfred device_t bdev; 473184610Salfred 474184610Salfred if (sc->sc_bus.bdev) { 475184610Salfred bdev = sc->sc_bus.bdev; 476184610Salfred device_detach(bdev); 477184610Salfred device_delete_child(self, bdev); 478184610Salfred } 479184610Salfred /* during module unload there are lots of children leftover */ 480227849Shselasky device_delete_children(self); 481184610Salfred 482184610Salfred pci_disable_busmaster(self); 483184610Salfred 484184610Salfred if (sc->sc_irq_res && sc->sc_intr_hdl) { 485184610Salfred /* 486184610Salfred * only call ehci_detach() after ehci_init() 487184610Salfred */ 488184610Salfred ehci_detach(sc); 489184610Salfred 490184610Salfred int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); 491184610Salfred 492184610Salfred if (err) 493184610Salfred /* XXX or should we panic? */ 494184610Salfred device_printf(self, "Could not tear down irq, %d\n", 495184610Salfred err); 496184610Salfred sc->sc_intr_hdl = NULL; 497184610Salfred } 498184610Salfred if (sc->sc_irq_res) { 499184610Salfred bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); 500184610Salfred sc->sc_irq_res = NULL; 501184610Salfred } 502184610Salfred if (sc->sc_io_res) { 503184610Salfred bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, 504184610Salfred sc->sc_io_res); 505184610Salfred sc->sc_io_res = NULL; 506184610Salfred } 507194228Sthompsa usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); 508184610Salfred 509184610Salfred return (0); 510184610Salfred} 511184610Salfred 512228483Shselaskystatic int 513228483Shselaskyehci_pci_take_controller(device_t self) 514198501Sthompsa{ 515198501Sthompsa ehci_softc_t *sc = device_get_softc(self); 516198501Sthompsa uint32_t cparams; 517198501Sthompsa uint32_t eec; 518198501Sthompsa uint16_t to; 519198501Sthompsa uint8_t eecp; 520198501Sthompsa uint8_t bios_sem; 521198501Sthompsa 522198501Sthompsa cparams = EREAD4(sc, EHCI_HCCPARAMS); 523198501Sthompsa 524198501Sthompsa /* Synchronise with the BIOS if it owns the controller. */ 525198501Sthompsa for (eecp = EHCI_HCC_EECP(cparams); eecp != 0; 526198501Sthompsa eecp = EHCI_EECP_NEXT(eec)) { 527198501Sthompsa eec = pci_read_config(self, eecp, 4); 528198501Sthompsa if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) { 529198501Sthompsa continue; 530198501Sthompsa } 531198501Sthompsa bios_sem = pci_read_config(self, eecp + 532198501Sthompsa EHCI_LEGSUP_BIOS_SEM, 1); 533198501Sthompsa if (bios_sem == 0) { 534198501Sthompsa continue; 535198501Sthompsa } 536198501Sthompsa device_printf(sc->sc_bus.bdev, "waiting for BIOS " 537198501Sthompsa "to give up control\n"); 538198501Sthompsa pci_write_config(self, eecp + 539198501Sthompsa EHCI_LEGSUP_OS_SEM, 1, 1); 540198501Sthompsa to = 500; 541198501Sthompsa while (1) { 542198501Sthompsa bios_sem = pci_read_config(self, eecp + 543198501Sthompsa EHCI_LEGSUP_BIOS_SEM, 1); 544198501Sthompsa if (bios_sem == 0) 545198501Sthompsa break; 546198501Sthompsa 547198501Sthompsa if (--to == 0) { 548198501Sthompsa device_printf(sc->sc_bus.bdev, 549198501Sthompsa "timed out waiting for BIOS\n"); 550198501Sthompsa break; 551198501Sthompsa } 552198501Sthompsa usb_pause_mtx(NULL, hz / 100); /* wait 10ms */ 553198501Sthompsa } 554198501Sthompsa } 555228483Shselasky return (0); 556198501Sthompsa} 557198501Sthompsa 558228483Shselaskystatic device_method_t ehci_pci_methods[] = { 559228483Shselasky /* Device interface */ 560228483Shselasky DEVMETHOD(device_probe, ehci_pci_probe), 561228483Shselasky DEVMETHOD(device_attach, ehci_pci_attach), 562228483Shselasky DEVMETHOD(device_detach, ehci_pci_detach), 563228483Shselasky DEVMETHOD(device_suspend, bus_generic_suspend), 564228483Shselasky DEVMETHOD(device_resume, bus_generic_resume), 565228483Shselasky DEVMETHOD(device_shutdown, bus_generic_shutdown), 566228483Shselasky DEVMETHOD(usb_take_controller, ehci_pci_take_controller), 567228483Shselasky 568228483Shselasky DEVMETHOD_END 569228483Shselasky}; 570228483Shselasky 571228483Shselaskystatic driver_t ehci_driver = { 572184610Salfred .name = "ehci", 573228483Shselasky .methods = ehci_pci_methods, 574184610Salfred .size = sizeof(struct ehci_softc), 575184610Salfred}; 576184610Salfred 577184610Salfredstatic devclass_t ehci_devclass; 578184610Salfred 579184610SalfredDRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0); 580188942SthompsaMODULE_DEPEND(ehci, usb, 1, 1, 1); 581