ehci_pci.c revision 197554
1193323Sed/*- 2193323Sed * Copyright (c) 1998 The NetBSD Foundation, Inc. 3193323Sed * All rights reserved. 4193323Sed * 5193323Sed * This code is derived from software contributed to The NetBSD Foundation 6193323Sed * by Lennart Augustsson (augustss@carlstedt.se) at 7193323Sed * Carlstedt Research & Technology. 8193323Sed * 9193323Sed * Redistribution and use in source and binary forms, with or without 10193323Sed * modification, are permitted provided that the following conditions 11193323Sed * are met: 12193323Sed * 1. Redistributions of source code must retain the above copyright 13193323Sed * notice, this list of conditions and the following disclaimer. 14203954Srdivacky * 2. Redistributions in binary form must reproduce the above copyright 15193323Sed * notice, this list of conditions and the following disclaimer in the 16206274Srdivacky * documentation and/or other materials provided with the distribution. 17206274Srdivacky * 3. All advertising materials mentioning features or use of this software 18193323Sed * must display the following acknowledgement: 19193323Sed * This product includes software developed by the NetBSD 20193323Sed * Foundation, Inc. and its contributors. 21199481Srdivacky * 4. Neither the name of The NetBSD Foundation nor the names of its 22198090Srdivacky * contributors may be used to endorse or promote products derived 23193323Sed * from this software without specific prior written permission. 24198090Srdivacky * 25193323Sed * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26203954Srdivacky * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27193323Sed * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28206274Srdivacky * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29198090Srdivacky * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30202878Srdivacky * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31198090Srdivacky * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32198090Srdivacky * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33198090Srdivacky * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34198090Srdivacky * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35202878Srdivacky * POSSIBILITY OF SUCH DAMAGE. 36193323Sed */ 37199481Srdivacky 38193323Sed#include <sys/cdefs.h> 39198090Srdivacky__FBSDID("$FreeBSD: head/sys/dev/usb/controller/ehci_pci.c 197554 2009-09-28 07:06:47Z thompsa $"); 40193323Sed 41193323Sed/* 42203954Srdivacky * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller. 43203954Srdivacky * 44203954Srdivacky * The EHCI 1.0 spec can be found at 45207618Srdivacky * http://developer.intel.com/technology/usb/download/ehci-r10.pdf 46193323Sed * and the USB 2.0 spec at 47193323Sed * http://www.usb.org/developers/docs/usb_20.zip 48207618Srdivacky */ 49207618Srdivacky 50207618Srdivacky/* The low level controller code for EHCI has been split into 51207618Srdivacky * PCI probes and EHCI specific code. This was done to facilitate the 52203954Srdivacky * sharing of code between *BSD's 53193323Sed */ 54193323Sed 55205218Srdivacky#include <sys/stdint.h> 56206274Srdivacky#include <sys/stddef.h> 57206274Srdivacky#include <sys/param.h> 58206274Srdivacky#include <sys/queue.h> 59206274Srdivacky#include <sys/types.h> 60206274Srdivacky#include <sys/systm.h> 61206274Srdivacky#include <sys/kernel.h> 62206274Srdivacky#include <sys/bus.h> 63206274Srdivacky#include <sys/linker_set.h> 64207618Srdivacky#include <sys/module.h> 65207618Srdivacky#include <sys/lock.h> 66207618Srdivacky#include <sys/mutex.h> 67207618Srdivacky#include <sys/condvar.h> 68207618Srdivacky#include <sys/sysctl.h> 69207618Srdivacky#include <sys/sx.h> 70207618Srdivacky#include <sys/unistd.h> 71207618Srdivacky#include <sys/callout.h> 72207618Srdivacky#include <sys/malloc.h> 73207618Srdivacky#include <sys/priv.h> 74207618Srdivacky 75207618Srdivacky#include <dev/usb/usb.h> 76207618Srdivacky#include <dev/usb/usbdi.h> 77207618Srdivacky 78207618Srdivacky#include <dev/usb/usb_core.h> 79207618Srdivacky#include <dev/usb/usb_busdma.h> 80207618Srdivacky#include <dev/usb/usb_process.h> 81207618Srdivacky#include <dev/usb/usb_util.h> 82207618Srdivacky 83207618Srdivacky#include <dev/usb/usb_controller.h> 84207618Srdivacky#include <dev/usb/usb_bus.h> 85207618Srdivacky#include <dev/usb/usb_pci.h> 86207618Srdivacky#include <dev/usb/controller/ehci.h> 87207618Srdivacky 88207618Srdivacky#define PCI_EHCI_VENDORID_ACERLABS 0x10b9 89207618Srdivacky#define PCI_EHCI_VENDORID_AMD 0x1022 90207618Srdivacky#define PCI_EHCI_VENDORID_APPLE 0x106b 91207618Srdivacky#define PCI_EHCI_VENDORID_ATI 0x1002 92207618Srdivacky#define PCI_EHCI_VENDORID_CMDTECH 0x1095 93206274Srdivacky#define PCI_EHCI_VENDORID_INTEL 0x8086 94206274Srdivacky#define PCI_EHCI_VENDORID_NEC 0x1033 95206274Srdivacky#define PCI_EHCI_VENDORID_OPTI 0x1045 96205218Srdivacky#define PCI_EHCI_VENDORID_PHILIPS 0x1131 97205218Srdivacky#define PCI_EHCI_VENDORID_SIS 0x1039 98206083Srdivacky#define PCI_EHCI_VENDORID_NVIDIA 0x12D2 99206274Srdivacky#define PCI_EHCI_VENDORID_NVIDIA2 0x10DE 100206274Srdivacky#define PCI_EHCI_VENDORID_VIA 0x1106 101203954Srdivacky 102193323Sed#define PCI_EHCI_BASE_REG 0x10 103193323Sed 104193323Sedstatic void ehci_pci_takecontroller(device_t self); 105206274Srdivacky 106198090Srdivackystatic device_probe_t ehci_pci_probe; 107206274Srdivackystatic device_attach_t ehci_pci_attach; 108206274Srdivackystatic device_detach_t ehci_pci_detach; 109206274Srdivackystatic device_suspend_t ehci_pci_suspend; 110206274Srdivackystatic device_resume_t ehci_pci_resume; 111206274Srdivackystatic device_shutdown_t ehci_pci_shutdown; 112206274Srdivacky 113206274Srdivackystatic int 114206274Srdivackyehci_pci_suspend(device_t self) 115206274Srdivacky{ 116198090Srdivacky ehci_softc_t *sc = device_get_softc(self); 117193323Sed int err; 118193323Sed 119203954Srdivacky err = bus_generic_suspend(self); 120203954Srdivacky if (err) 121203954Srdivacky return (err); 122203954Srdivacky ehci_suspend(sc); 123203954Srdivacky return (0); 124203954Srdivacky} 125207618Srdivacky 126198090Srdivackystatic int 127193323Sedehci_pci_resume(device_t self) 128193323Sed{ 129206274Srdivacky ehci_softc_t *sc = device_get_softc(self); 130206274Srdivacky 131206274Srdivacky ehci_pci_takecontroller(self); 132206274Srdivacky ehci_resume(sc); 133206274Srdivacky 134206274Srdivacky bus_generic_resume(self); 135198090Srdivacky 136198090Srdivacky return (0); 137198090Srdivacky} 138193323Sed 139193323Sedstatic int 140193323Sedehci_pci_shutdown(device_t self) 141206274Srdivacky{ 142193323Sed ehci_softc_t *sc = device_get_softc(self); 143198090Srdivacky int err; 144193323Sed 145205218Srdivacky err = bus_generic_shutdown(self); 146193323Sed if (err) 147206274Srdivacky return (err); 148198090Srdivacky ehci_shutdown(sc); 149193323Sed 150193323Sed return (0); 151193323Sed} 152205218Srdivacky 153205218Srdivackystatic const char * 154205218Srdivackyehci_pci_match(device_t self) 155198090Srdivacky{ 156198090Srdivacky uint32_t device_id = pci_get_devid(self); 157198090Srdivacky 158193323Sed switch (device_id) { 159205218Srdivacky case 0x268c8086: 160198090Srdivacky return ("Intel 63XXESB USB 2.0 controller"); 161198090Srdivacky 162198090Srdivacky case 0x523910b9: 163193323Sed return "ALi M5239 USB 2.0 controller"; 164203954Srdivacky 165203954Srdivacky case 0x10227463: 166198090Srdivacky return "AMD 8111 USB 2.0 controller"; 167203954Srdivacky 168203954Srdivacky case 0x20951022: 169193323Sed return ("AMD CS5536 (Geode) USB 2.0 controller"); 170193323Sed 171198090Srdivacky case 0x43451002: 172198090Srdivacky return "ATI SB200 USB 2.0 controller"; 173193323Sed case 0x43731002: 174193323Sed return "ATI SB400 USB 2.0 controller"; 175206274Srdivacky 176193323Sed case 0x25ad8086: 177206274Srdivacky return "Intel 6300ESB USB 2.0 controller"; 178206274Srdivacky case 0x24cd8086: 179206274Srdivacky return "Intel 82801DB/L/M (ICH4) USB 2.0 controller"; 180206274Srdivacky case 0x24dd8086: 181206274Srdivacky return "Intel 82801EB/R (ICH5) USB 2.0 controller"; 182206274Srdivacky case 0x265c8086: 183206274Srdivacky return "Intel 82801FB (ICH6) USB 2.0 controller"; 184206274Srdivacky case 0x27cc8086: 185194612Sed return "Intel 82801GB/R (ICH7) USB 2.0 controller"; 186206274Srdivacky 187206274Srdivacky case 0x28368086: 188206274Srdivacky return "Intel 82801H (ICH8) USB 2.0 controller USB2-A"; 189206274Srdivacky case 0x283a8086: 190206274Srdivacky return "Intel 82801H (ICH8) USB 2.0 controller USB2-B"; 191206274Srdivacky case 0x293a8086: 192193323Sed return "Intel 82801I (ICH9) USB 2.0 controller"; 193193323Sed case 0x293c8086: 194193323Sed return "Intel 82801I (ICH9) USB 2.0 controller"; 195203954Srdivacky 196203954Srdivacky case 0x00e01033: 197203954Srdivacky return ("NEC uPD 720100 USB 2.0 controller"); 198203954Srdivacky 199203954Srdivacky case 0x006810de: 200203954Srdivacky return "NVIDIA nForce2 USB 2.0 controller"; 201203954Srdivacky case 0x008810de: 202203954Srdivacky return "NVIDIA nForce2 Ultra 400 USB 2.0 controller"; 203203954Srdivacky case 0x00d810de: 204203954Srdivacky return "NVIDIA nForce3 USB 2.0 controller"; 205203954Srdivacky case 0x00e810de: 206203954Srdivacky return "NVIDIA nForce3 250 USB 2.0 controller"; 207203954Srdivacky case 0x005b10de: 208208599Srdivacky return "NVIDIA nForce4 USB 2.0 controller"; 209203954Srdivacky case 0x03f210de: 210203954Srdivacky return "NVIDIA nForce MCP61 USB 2.0 controller"; 211208599Srdivacky 212203954Srdivacky case 0x15621131: 213203954Srdivacky return "Philips ISP156x USB 2.0 controller"; 214203954Srdivacky 215203954Srdivacky case 0x31041106: 216203954Srdivacky return ("VIA VT6202 USB 2.0 controller"); 217203954Srdivacky 218203954Srdivacky default: 219203954Srdivacky break; 220203954Srdivacky } 221203954Srdivacky 222203954Srdivacky if ((pci_get_class(self) == PCIC_SERIALBUS) 223203954Srdivacky && (pci_get_subclass(self) == PCIS_SERIALBUS_USB) 224203954Srdivacky && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) { 225203954Srdivacky return ("EHCI (generic) USB 2.0 controller"); 226203954Srdivacky } 227203954Srdivacky return (NULL); /* dunno */ 228203954Srdivacky} 229203954Srdivacky 230203954Srdivackystatic int 231203954Srdivackyehci_pci_probe(device_t self) 232203954Srdivacky{ 233203954Srdivacky const char *desc = ehci_pci_match(self); 234203954Srdivacky 235202878Srdivacky if (desc) { 236202878Srdivacky device_set_desc(self, desc); 237202878Srdivacky return (0); 238202878Srdivacky } else { 239202878Srdivacky return (ENXIO); 240202878Srdivacky } 241202878Srdivacky} 242202878Srdivacky 243202878Srdivackystatic void 244208599Srdivackyehci_pci_ati_quirk(device_t self, uint8_t is_sb700) 245208599Srdivacky{ 246208599Srdivacky device_t smbdev; 247208599Srdivacky uint32_t val; 248208599Srdivacky 249208599Srdivacky if (is_sb700) { 250205218Srdivacky /* Lookup SMBUS PCI device */ 251203954Srdivacky smbdev = pci_find_device(PCI_EHCI_VENDORID_ATI, 0x4385); 252202878Srdivacky if (smbdev == NULL) 253203954Srdivacky return; 254203954Srdivacky val = pci_get_revid(smbdev); 255202878Srdivacky if (val != 0x3a && val != 0x3b) 256202878Srdivacky return; 257202878Srdivacky } 258202878Srdivacky 259207618Srdivacky /* 260202878Srdivacky * Note: this bit is described as reserved in SB700 261207618Srdivacky * Register Reference Guide. 262207618Srdivacky */ 263207618Srdivacky val = pci_read_config(self, 0x53, 1); 264207618Srdivacky if (!(val & 0x8)) { 265207618Srdivacky val |= 0x8; 266202878Srdivacky pci_write_config(self, 0x53, val, 1); 267202878Srdivacky device_printf(self, "AMD SB600/700 quirk applied\n"); 268202878Srdivacky } 269202878Srdivacky} 270206274Srdivacky 271202878Srdivackystatic void 272202878Srdivackyehci_pci_via_quirk(device_t self) 273202878Srdivacky{ 274202878Srdivacky uint32_t val; 275202878Srdivacky 276202878Srdivacky if ((pci_get_device(self) == 0x3104) && 277202878Srdivacky ((pci_get_revid(self) & 0xf0) == 0x60)) { 278202878Srdivacky /* Correct schedule sleep time to 10us */ 279202878Srdivacky val = pci_read_config(self, 0x4b, 1); 280202878Srdivacky if (val & 0x20) 281202878Srdivacky return; 282202878Srdivacky pci_write_config(self, 0x4b, val, 1); 283202878Srdivacky device_printf(self, "VIA-quirk applied\n"); 284202878Srdivacky } 285202878Srdivacky} 286202878Srdivacky 287202878Srdivackystatic int 288202878Srdivackyehci_pci_attach(device_t self) 289202878Srdivacky{ 290202878Srdivacky ehci_softc_t *sc = device_get_softc(self); 291202878Srdivacky int err; 292202878Srdivacky int rid; 293202878Srdivacky 294202878Srdivacky /* initialise some bus fields */ 295202878Srdivacky sc->sc_bus.parent = self; 296202878Srdivacky sc->sc_bus.devices = sc->sc_devices; 297202878Srdivacky sc->sc_bus.devices_max = EHCI_MAX_DEVICES; 298202878Srdivacky 299202878Srdivacky /* get all DMA memory */ 300202878Srdivacky if (usb_bus_mem_alloc_all(&sc->sc_bus, 301202878Srdivacky USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) { 302202878Srdivacky return (ENOMEM); 303202878Srdivacky } 304202878Srdivacky 305202878Srdivacky pci_enable_busmaster(self); 306202878Srdivacky 307202878Srdivacky switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) { 308202878Srdivacky case PCI_USB_REV_PRE_1_0: 309202878Srdivacky case PCI_USB_REV_1_0: 310202878Srdivacky case PCI_USB_REV_1_1: 311207618Srdivacky /* 312207618Srdivacky * NOTE: some EHCI USB controllers have the wrong USB 313202878Srdivacky * revision number. It appears those controllers are 314202878Srdivacky * fully compliant so we just ignore this value in 315202878Srdivacky * some common cases. 316202878Srdivacky */ 317202878Srdivacky device_printf(self, "pre-2.0 USB revision (ignored)\n"); 318202878Srdivacky /* fallthrough */ 319208599Srdivacky case PCI_USB_REV_2_0: 320208599Srdivacky sc->sc_bus.usbrev = USB_REV_2_0; 321208599Srdivacky break; 322208599Srdivacky default: 323208599Srdivacky /* Quirk for Parallels Desktop 4.0 */ 324208599Srdivacky device_printf(self, "USB revision is unknown. Assuming v2.0.\n"); 325208599Srdivacky sc->sc_bus.usbrev = USB_REV_2_0; 326208599Srdivacky break; 327208599Srdivacky } 328208599Srdivacky 329208599Srdivacky rid = PCI_CBMEM; 330208599Srdivacky sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, 331208599Srdivacky RF_ACTIVE); 332202878Srdivacky if (!sc->sc_io_res) { 333208599Srdivacky device_printf(self, "Could not map memory\n"); 334208599Srdivacky goto error; 335208599Srdivacky } 336208599Srdivacky sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); 337208599Srdivacky sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); 338208599Srdivacky sc->sc_io_size = rman_get_size(sc->sc_io_res); 339208599Srdivacky 340208599Srdivacky rid = 0; 341208599Srdivacky sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, 342208599Srdivacky RF_SHAREABLE | RF_ACTIVE); 343208599Srdivacky if (sc->sc_irq_res == NULL) { 344208599Srdivacky device_printf(self, "Could not allocate irq\n"); 345208599Srdivacky goto error; 346208599Srdivacky } 347208599Srdivacky sc->sc_bus.bdev = device_add_child(self, "usbus", -1); 348208599Srdivacky if (!sc->sc_bus.bdev) { 349208599Srdivacky device_printf(self, "Could not add USB device\n"); 350208599Srdivacky goto error; 351208599Srdivacky } 352208599Srdivacky device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); 353208599Srdivacky 354208599Srdivacky /* 355208599Srdivacky * ehci_pci_match will never return NULL if ehci_pci_probe 356208599Srdivacky * succeeded 357208599Srdivacky */ 358208599Srdivacky device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self)); 359208599Srdivacky switch (pci_get_vendor(self)) { 360208599Srdivacky case PCI_EHCI_VENDORID_ACERLABS: 361208599Srdivacky sprintf(sc->sc_vendor, "AcerLabs"); 362208599Srdivacky break; 363208599Srdivacky case PCI_EHCI_VENDORID_AMD: 364208599Srdivacky sprintf(sc->sc_vendor, "AMD"); 365202878Srdivacky break; 366202878Srdivacky case PCI_EHCI_VENDORID_APPLE: 367203954Srdivacky sprintf(sc->sc_vendor, "Apple"); 368203954Srdivacky break; 369202878Srdivacky case PCI_EHCI_VENDORID_ATI: 370202878Srdivacky sprintf(sc->sc_vendor, "ATI"); 371202878Srdivacky break; 372202878Srdivacky case PCI_EHCI_VENDORID_CMDTECH: 373202878Srdivacky sprintf(sc->sc_vendor, "CMDTECH"); 374202878Srdivacky break; 375203954Srdivacky case PCI_EHCI_VENDORID_INTEL: 376203954Srdivacky sprintf(sc->sc_vendor, "Intel"); 377202878Srdivacky break; 378202878Srdivacky case PCI_EHCI_VENDORID_NEC: 379202878Srdivacky sprintf(sc->sc_vendor, "NEC"); 380202878Srdivacky break; 381203954Srdivacky case PCI_EHCI_VENDORID_OPTI: 382203954Srdivacky sprintf(sc->sc_vendor, "OPTi"); 383203954Srdivacky break; 384203954Srdivacky case PCI_EHCI_VENDORID_PHILIPS: 385203954Srdivacky sprintf(sc->sc_vendor, "Philips"); 386203954Srdivacky break; 387203954Srdivacky case PCI_EHCI_VENDORID_SIS: 388203954Srdivacky sprintf(sc->sc_vendor, "SiS"); 389202878Srdivacky break; 390203954Srdivacky case PCI_EHCI_VENDORID_NVIDIA: 391203954Srdivacky case PCI_EHCI_VENDORID_NVIDIA2: 392203954Srdivacky sprintf(sc->sc_vendor, "nVidia"); 393203954Srdivacky break; 394203954Srdivacky case PCI_EHCI_VENDORID_VIA: 395203954Srdivacky sprintf(sc->sc_vendor, "VIA"); 396203954Srdivacky break; 397203954Srdivacky default: 398203954Srdivacky if (bootverbose) 399206274Srdivacky device_printf(self, "(New EHCI DeviceId=0x%08x)\n", 400203954Srdivacky pci_get_devid(self)); 401203954Srdivacky sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self)); 402203954Srdivacky } 403203954Srdivacky 404203954Srdivacky#if (__FreeBSD_version >= 700031) 405203954Srdivacky err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 406203954Srdivacky NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 407203954Srdivacky#else 408203954Srdivacky err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE, 409205218Srdivacky (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); 410205218Srdivacky#endif 411205218Srdivacky if (err) { 412205218Srdivacky device_printf(self, "Could not setup irq, %d\n", err); 413205218Srdivacky sc->sc_intr_hdl = NULL; 414205218Srdivacky goto error; 415205218Srdivacky } 416205218Srdivacky ehci_pci_takecontroller(self); 417205218Srdivacky 418205218Srdivacky /* Undocumented quirks taken from Linux */ 419203954Srdivacky 420203954Srdivacky switch (pci_get_vendor(self)) { 421206274Srdivacky case PCI_EHCI_VENDORID_ATI: 422203954Srdivacky /* SB600 and SB700 EHCI quirk */ 423206274Srdivacky switch (pci_get_device(self)) { 424206274Srdivacky case 0x4386: 425206274Srdivacky ehci_pci_ati_quirk(self, 0); 426206274Srdivacky break; 427206274Srdivacky case 0x4396: 428203954Srdivacky ehci_pci_ati_quirk(self, 1); 429203954Srdivacky break; 430207618Srdivacky default: 431207618Srdivacky break; 432207618Srdivacky } 433207618Srdivacky break; 434207618Srdivacky 435207618Srdivacky case PCI_EHCI_VENDORID_VIA: 436207618Srdivacky ehci_pci_via_quirk(self); 437207618Srdivacky break; 438207618Srdivacky 439207618Srdivacky default: 440207618Srdivacky break; 441207618Srdivacky } 442207618Srdivacky 443207618Srdivacky err = ehci_init(sc); 444207618Srdivacky if (!err) { 445207618Srdivacky err = device_probe_and_attach(sc->sc_bus.bdev); 446203954Srdivacky } 447203954Srdivacky if (err) { 448203954Srdivacky device_printf(self, "USB init failed err=%d\n", err); 449203954Srdivacky goto error; 450203954Srdivacky } 451208599Srdivacky return (0); 452208599Srdivacky 453208599Srdivackyerror: 454208599Srdivacky ehci_pci_detach(self); 455208599Srdivacky return (ENXIO); 456208599Srdivacky} 457208599Srdivacky 458203954Srdivackystatic int 459203954Srdivackyehci_pci_detach(device_t self) 460203954Srdivacky{ 461203954Srdivacky ehci_softc_t *sc = device_get_softc(self); 462203954Srdivacky device_t bdev; 463203954Srdivacky 464203954Srdivacky if (sc->sc_bus.bdev) { 465203954Srdivacky bdev = sc->sc_bus.bdev; 466206124Srdivacky device_detach(bdev); 467206124Srdivacky device_delete_child(self, bdev); 468206124Srdivacky } 469203954Srdivacky /* during module unload there are lots of children leftover */ 470204961Srdivacky device_delete_all_children(self); 471203954Srdivacky 472203954Srdivacky pci_disable_busmaster(self); 473203954Srdivacky 474206124Srdivacky /* 475206124Srdivacky * disable interrupts that might have been switched on in ehci_init 476206124Srdivacky */ 477203954Srdivacky if (sc->sc_io_res) { 478203954Srdivacky EWRITE4(sc, EHCI_USBINTR, 0); 479203954Srdivacky } 480203954Srdivacky if (sc->sc_irq_res && sc->sc_intr_hdl) { 481203954Srdivacky /* 482203954Srdivacky * only call ehci_detach() after ehci_init() 483203954Srdivacky */ 484203954Srdivacky ehci_detach(sc); 485203954Srdivacky 486203954Srdivacky int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl); 487203954Srdivacky 488203954Srdivacky if (err) 489203954Srdivacky /* XXX or should we panic? */ 490203954Srdivacky device_printf(self, "Could not tear down irq, %d\n", 491203954Srdivacky err); 492203954Srdivacky sc->sc_intr_hdl = NULL; 493203954Srdivacky } 494203954Srdivacky if (sc->sc_irq_res) { 495203954Srdivacky bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res); 496203954Srdivacky sc->sc_irq_res = NULL; 497203954Srdivacky } 498203954Srdivacky if (sc->sc_io_res) { 499203954Srdivacky bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, 500203954Srdivacky sc->sc_io_res); 501203954Srdivacky sc->sc_io_res = NULL; 502203954Srdivacky } 503203954Srdivacky usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc); 504203954Srdivacky 505203954Srdivacky return (0); 506203954Srdivacky} 507203954Srdivacky 508203954Srdivackystatic void 509203954Srdivackyehci_pci_takecontroller(device_t self) 510203954Srdivacky{ 511203954Srdivacky ehci_softc_t *sc = device_get_softc(self); 512203954Srdivacky uint32_t cparams; 513203954Srdivacky uint32_t eec; 514203954Srdivacky uint16_t to; 515206274Srdivacky uint8_t eecp; 516206274Srdivacky uint8_t bios_sem; 517206274Srdivacky 518206274Srdivacky cparams = EREAD4(sc, EHCI_HCCPARAMS); 519206274Srdivacky 520206274Srdivacky /* Synchronise with the BIOS if it owns the controller. */ 521206274Srdivacky for (eecp = EHCI_HCC_EECP(cparams); eecp != 0; 522206274Srdivacky eecp = EHCI_EECP_NEXT(eec)) { 523203954Srdivacky eec = pci_read_config(self, eecp, 4); 524206274Srdivacky if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) { 525206274Srdivacky continue; 526206274Srdivacky } 527206274Srdivacky bios_sem = pci_read_config(self, eecp + 528206274Srdivacky EHCI_LEGSUP_BIOS_SEM, 1); 529206274Srdivacky if (bios_sem == 0) { 530206274Srdivacky continue; 531206274Srdivacky } 532206274Srdivacky device_printf(sc->sc_bus.bdev, "waiting for BIOS " 533206274Srdivacky "to give up control\n"); 534206274Srdivacky pci_write_config(self, eecp + 535206274Srdivacky EHCI_LEGSUP_OS_SEM, 1, 1); 536203954Srdivacky to = 500; 537207618Srdivacky while (1) { 538207618Srdivacky bios_sem = pci_read_config(self, eecp + 539207618Srdivacky EHCI_LEGSUP_BIOS_SEM, 1); 540207618Srdivacky if (bios_sem == 0) 541207618Srdivacky break; 542207618Srdivacky 543207618Srdivacky if (--to == 0) { 544206274Srdivacky device_printf(sc->sc_bus.bdev, 545207618Srdivacky "timed out waiting for BIOS\n"); 546207618Srdivacky break; 547207618Srdivacky } 548206274Srdivacky usb_pause_mtx(NULL, hz / 100); /* wait 10ms */ 549207618Srdivacky } 550207618Srdivacky } 551207618Srdivacky} 552208599Srdivacky 553207618Srdivackystatic driver_t ehci_driver = 554207618Srdivacky{ 555207618Srdivacky .name = "ehci", 556207618Srdivacky .methods = (device_method_t[]){ 557207618Srdivacky /* device interface */ 558207618Srdivacky DEVMETHOD(device_probe, ehci_pci_probe), 559207618Srdivacky DEVMETHOD(device_attach, ehci_pci_attach), 560207618Srdivacky DEVMETHOD(device_detach, ehci_pci_detach), 561207618Srdivacky DEVMETHOD(device_suspend, ehci_pci_suspend), 562207618Srdivacky DEVMETHOD(device_resume, ehci_pci_resume), 563207618Srdivacky DEVMETHOD(device_shutdown, ehci_pci_shutdown), 564207618Srdivacky /* bus interface */ 565207618Srdivacky DEVMETHOD(bus_print_child, bus_generic_print_child), 566207618Srdivacky 567207618Srdivacky {0, 0} 568207618Srdivacky }, 569207618Srdivacky .size = sizeof(struct ehci_softc), 570207618Srdivacky}; 571207618Srdivacky 572207618Srdivackystatic devclass_t ehci_devclass; 573207618Srdivacky 574207618SrdivackyDRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0); 575207618SrdivackyMODULE_DEPEND(ehci, usb, 1, 1, 1); 576207618Srdivacky