sys/bus/usb/ehci_pci.c

   1 /*
   2  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   3  * All rights reserved.
   4  *
   5  * This code is derived from software contributed to The NetBSD Foundation
   6  * by Lennart Augustsson (augustss@carlstedt.se) at
   7  * Carlstedt Research & Technology.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *        This product includes software developed by the NetBSD
  20  *        Foundation, Inc. and its contributors.
  21  * 4. Neither the name of The NetBSD Foundation nor the names of its
  22  *    contributors may be used to endorse or promote products derived
  23  *    from this software without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  26  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35  * POSSIBILITY OF SUCH DAMAGE.
  36  *
  37  * $FreeBSD: src/sys/dev/usb/ehci_pci.c,v 1.18.2.1 2006/01/26 01:43:13 iedowse Exp $
  38  * $DragonFly: src/sys/bus/usb/ehci_pci.c,v 1.19 2008/05/21 19:56:46 mneumann Exp $
  39  */
  40
  41 /*
  42  * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller.
  43  *
  44  * The EHCI 1.0 spec can be found at
  45  * http://developer.intel.com/technology/usb/download/ehci-r10.pdf
  46  * and the USB 2.0 spec at
  47  * http://www.usb.org/developers/docs/usb_20.zip
  48  */
  49
  50 /* The low level controller code for EHCI has been split into
  51  * PCI probes and EHCI specific code. This was done to facilitate the
  52  * sharing of code between *BSD's
  53  */
  54
  55 #include "opt_bus.h"
  56
  57 #include <sys/param.h>
  58 #include <sys/systm.h>
  59 #include <sys/kernel.h>
  60 #include <sys/module.h>
  61 #include <sys/bus.h>
  62 #include <sys/queue.h>
  63 #include <sys/lock.h>
  64 #include <sys/rman.h>
  65
  66 #include <bus/pci/pcivar.h>
  67 #include <bus/pci/pcireg.h>
  68
  69 #include <bus/usb/usb.h>
  70 #include <bus/usb/usbdi.h>
  71 #include <bus/usb/usbdivar.h>
  72 #include <bus/usb/usb_mem.h>
  73
  74 #include <bus/usb/ehcireg.h>
  75 #include <bus/usb/ehcivar.h>
  76
  77 #define PCI_EHCI_VENDORID_ACERLABS      0x10b9
  78 #define PCI_EHCI_VENDORID_AMD           0x1022
  79 #define PCI_EHCI_VENDORID_APPLE         0x106b
  80 #define PCI_EHCI_VENDORID_ATI           0x1002
  81 #define PCI_EHCI_VENDORID_CMDTECH       0x1095
  82 #define PCI_EHCI_VENDORID_INTEL         0x8086
  83 #define PCI_EHCI_VENDORID_NEC           0x1033
  84 #define PCI_EHCI_VENDORID_OPTI          0x1045
  85 #define PCI_EHCI_VENDORID_PHILIPS       0x1131
  86 #define PCI_EHCI_VENDORID_SIS           0x1039
  87 #define PCI_EHCI_VENDORID_NVIDIA        0x12D2
  88 #define PCI_EHCI_VENDORID_NVIDIA2       0x10DE
  89 #define PCI_EHCI_VENDORID_VIA           0x1106
  90
  91 /* AcerLabs/ALi */
  92 #define PCI_EHCI_DEVICEID_M5239         0x523910b9
  93 static const char *ehci_device_m5239 = "ALi M5239 USB 2.0 controller";
  94
  95 /* AMD */
  96 #define PCI_EHCI_DEVICEID_8111          0x74631022
  97 #define PCI_EHCI_DEVICEID_CS5536        0x20951022
  98 static const char *ehci_device_8111 = "AMD 8111 USB 2.0 controller";
  99 static const char *ehci_device_CS5536 = "AMD CS5536 USB 2.0 controller";
 100
 101 /* ATI */
 102 #define PCI_EHCI_DEVICEID_SB200         0x43451002
 103 static const char *ehci_device_sb200 = "ATI SB200 USB 2.0 controller";
 104 #define PCI_EHCI_DEVICEID_SB400         0x43731002
 105 static const char *ehci_device_sb400 = "ATI SB400 USB 2.0 controller";
 106
 107 /* Intel */
 108 #define PCI_EHCI_DEVICEID_6300          0x25ad8086
 109 static const char *ehci_device_6300 = "Intel 6300ESB USB 2.0 controller";
 110 #define PCI_EHCI_DEVICEID_ICH4          0x24cd8086
 111 static const char *ehci_device_ich4 = "Intel 82801DB/L/M USB 2.0 controller";
 112 #define PCI_EHCI_DEVICEID_ICH5          0x24dd8086
 113 static const char *ehci_device_ich5 = "Intel 82801EB/R USB 2.0 controller";
 114 #define PCI_EHCI_DEVICEID_ICH6          0x265c8086
 115 static const char *ehci_device_ich6 = "Intel 82801FB USB 2.0 controller";
 116 #define PCI_EHCI_DEVICEID_ICH7          0x27cc8086
 117 static const char *ehci_device_ich7 = "Intel 82801GB/R USB 2.0 controller";
 118
 119 /* NEC */
 120 #define PCI_EHCI_DEVICEID_NEC           0x00e01033
 121 static const char *ehci_device_nec = "NEC uPD 720100 USB 2.0 controller";
 122
 123 /* NVIDIA */
 124 #define PCI_EHCI_DEVICEID_NF2           0x006810de
 125 static const char *ehci_device_nf2 = "NVIDIA nForce2 USB 2.0 controller";
 126 #define PCI_EHCI_DEVICEID_NF2_400       0x008810de
 127 static const char *ehci_device_nf2_400 = "NVIDIA nForce2 Ultra 400 USB 2.0 controller";
 128 #define PCI_EHCI_DEVICEID_NF3           0x00d810de
 129 static const char *ehci_device_nf3 = "NVIDIA nForce3 USB 2.0 controller";
 130 #define PCI_EHCI_DEVICEID_NF3_250       0x00e810de
 131 static const char *ehci_device_nf3_250 = "NVIDIA nForce3 250 USB 2.0 controller";
 132 #define PCI_EHCI_DEVICEID_NF4           0x005b10de
 133 static const char *ehci_device_nf4 = "NVIDIA nForce4 USB 2.0 controller";
 134
 135 /* Philips */
 136 #define PCI_EHCI_DEVICEID_ISP156X       0x15621131
 137 static const char *ehci_device_isp156x = "Philips ISP156x USB 2.0 controller";
 138
 139 /* VIA */
 140 #define PCI_EHCI_DEVICEID_VIA           0x31041106
 141 static const char *ehci_device_via = "VIA VT6202 USB 2.0 controller";
 142
 143 /* Generic */
 144 static const char *ehci_device_generic = "EHCI (generic) USB 2.0 controller";
 145
 146 #define PCI_EHCI_BASE_REG       0x10
 147
 148 #ifdef USB_DEBUG
 149 #define EHCI_DEBUG USB_DEBUG
 150 #define DPRINTF(x)      do { if (ehcidebug) kprintf x; } while (0)
 151 extern int ehcidebug;
 152 #else
 153 #define DPRINTF(x)
 154 #endif
 155
 156 static int ehci_pci_attach(device_t self);
 157 static int ehci_pci_detach(device_t self);
 158 static int ehci_pci_shutdown(device_t self);
 159 static int ehci_pci_suspend(device_t self);
 160 static int ehci_pci_resume(device_t self);
 161 static void ehci_pci_givecontroller(device_t self);
 162 static void ehci_pci_takecontroller(device_t self);
 163
 164 static int
 165 ehci_pci_suspend(device_t self)
 166 {
 167         ehci_softc_t *sc = device_get_softc(self);
 168         int err;
 169
 170         err = bus_generic_suspend(self);
 171         if (err)
 172                 return (err);
 173         ehci_power(PWR_SUSPEND, sc);
 174
 175         return 0;
 176 }
 177
 178 static int
 179 ehci_pci_resume(device_t self)
 180 {
 181         ehci_softc_t *sc = device_get_softc(self);
 182
 183         ehci_pci_takecontroller(self);
 184         ehci_power(PWR_RESUME, sc);
 185         bus_generic_resume(self);
 186
 187         return 0;
 188 }
 189
 190 static int
 191 ehci_pci_shutdown(device_t self)
 192 {
 193         ehci_softc_t *sc = device_get_softc(self);
 194         int err;
 195
 196         err = bus_generic_shutdown(self);
 197         if (sc->sc_flags & EHCI_SCFLG_DONEINIT) {
 198                 ehci_shutdown(sc);
 199                 ehci_pci_givecontroller(self);
 200         }
 201
 202         return err;
 203 }
 204
 205 static const char *
 206 ehci_pci_match(device_t self)
 207 {
 208         u_int32_t device_id = pci_get_devid(self);
 209
 210         switch (device_id) {
 211         case PCI_EHCI_DEVICEID_M5239:
 212                 return (ehci_device_m5239);
 213         case PCI_EHCI_DEVICEID_8111:
 214                 return (ehci_device_8111);
 215         case PCI_EHCI_DEVICEID_CS5536:
 216                 return (ehci_device_CS5536);
 217         case PCI_EHCI_DEVICEID_SB200:
 218                 return (ehci_device_sb200);
 219         case PCI_EHCI_DEVICEID_SB400:
 220                 return (ehci_device_sb400);
 221         case PCI_EHCI_DEVICEID_6300:
 222                 return (ehci_device_6300);
 223         case PCI_EHCI_DEVICEID_ICH4:
 224                 return (ehci_device_ich4);
 225         case PCI_EHCI_DEVICEID_ICH5:
 226                 return (ehci_device_ich5);
 227         case PCI_EHCI_DEVICEID_ICH6:
 228                 return (ehci_device_ich6);
 229         case PCI_EHCI_DEVICEID_ICH7:
 230                 return (ehci_device_ich7);
 231         case PCI_EHCI_DEVICEID_NEC:
 232                 return (ehci_device_nec);
 233         case PCI_EHCI_DEVICEID_NF2:
 234                 return (ehci_device_nf2);
 235         case PCI_EHCI_DEVICEID_NF2_400:
 236                 return (ehci_device_nf2_400);
 237         case PCI_EHCI_DEVICEID_NF3:
 238                 return (ehci_device_nf3);
 239         case PCI_EHCI_DEVICEID_NF3_250:
 240                 return (ehci_device_nf3_250);
 241         case PCI_EHCI_DEVICEID_NF4:
 242                 return (ehci_device_nf4);
 243         case PCI_EHCI_DEVICEID_ISP156X:
 244                 return (ehci_device_isp156x);
 245         case PCI_EHCI_DEVICEID_VIA:
 246                 return (ehci_device_via);
 247         default:
 248                 if (pci_get_class(self) == PCIC_SERIALBUS
 249                     && pci_get_subclass(self) == PCIS_SERIALBUS_USB
 250                     && pci_get_progif(self) == PCI_INTERFACE_EHCI) {
 251                         return (ehci_device_generic);
 252                 }
 253         }
 254
 255         return NULL;            /* dunno */
 256 }
 257
 258 static int
 259 ehci_pci_probe(device_t self)
 260 {
 261         const char *desc = ehci_pci_match(self);
 262
 263         if (desc) {
 264                 device_set_desc(self, desc);
 265                 device_set_async_attach(self, TRUE);
 266                 return 0;
 267         } else {
 268                 return ENXIO;
 269         }
 270 }
 271
 272 static int
 273 ehci_pci_attach(device_t self)
 274 {
 275         ehci_softc_t *sc = device_get_softc(self);
 276         device_t parent;
 277         device_t *neighbors;
 278         device_t *nbus;
 279         struct usb_softc *usb_sc;
 280         struct usbd_bus *bsc;
 281         int err;
 282         int rid;
 283         int ncomp;
 284         int count, buscount;
 285         int slot, function;
 286         int res;
 287         int i;
 288
 289         switch(pci_read_config(self, PCI_USBREV, 1) & PCI_USBREV_MASK) {
 290         case PCI_USBREV_PRE_1_0:
 291         case PCI_USBREV_1_0:
 292         case PCI_USBREV_1_1:
 293                 sc->sc_bus.usbrev = USBREV_UNKNOWN;
 294                 kprintf("pre-2.0 USB rev\n");
 295                 return ENXIO;
 296         case PCI_USBREV_2_0:
 297                 sc->sc_bus.usbrev = USBREV_2_0;
 298                 break;
 299         default:
 300                 sc->sc_bus.usbrev = USBREV_UNKNOWN;
 301                 break;
 302         }
 303
 304         pci_enable_busmaster(self);
 305
 306         rid = PCI_CBMEM;
 307         sc->io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
 308             RF_ACTIVE);
 309         if (!sc->io_res) {
 310                 device_printf(self, "Could not map memory\n");
 311                 return ENXIO;
 312         }
 313         sc->iot = rman_get_bustag(sc->io_res);
 314         sc->ioh = rman_get_bushandle(sc->io_res);
 315
 316         rid = 0;
 317         sc->irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
 318             RF_SHAREABLE | RF_ACTIVE);
 319         if (sc->irq_res == NULL) {
 320                 device_printf(self, "Could not allocate irq\n");
 321                 ehci_pci_detach(self);
 322                 return ENXIO;
 323         }
 324         sc->sc_bus.bdev = device_add_child(self, "usb", -1);
 325         if (!sc->sc_bus.bdev) {
 326                 device_printf(self, "Could not add USB device\n");
 327                 ehci_pci_detach(self);
 328                 return ENOMEM;
 329         }
 330         device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
 331
 332         /* ehci_pci_match will never return NULL if ehci_pci_probe succeeded */
 333         device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self));
 334         switch (pci_get_vendor(self)) {
 335         case PCI_EHCI_VENDORID_ACERLABS:
 336                 ksprintf(sc->sc_vendor, "AcerLabs");
 337                 break;
 338         case PCI_EHCI_VENDORID_AMD:
 339                 ksprintf(sc->sc_vendor, "AMD");
 340                 break;
 341         case PCI_EHCI_VENDORID_APPLE:
 342                 ksprintf(sc->sc_vendor, "Apple");
 343                 break;
 344         case PCI_EHCI_VENDORID_ATI:
 345                 ksprintf(sc->sc_vendor, "ATI");
 346                 break;
 347         case PCI_EHCI_VENDORID_CMDTECH:
 348                 ksprintf(sc->sc_vendor, "CMDTECH");
 349                 break;
 350         case PCI_EHCI_VENDORID_INTEL:
 351                 ksprintf(sc->sc_vendor, "Intel");
 352                 break;
 353         case PCI_EHCI_VENDORID_NEC:
 354                 ksprintf(sc->sc_vendor, "NEC");
 355                 break;
 356         case PCI_EHCI_VENDORID_OPTI:
 357                 ksprintf(sc->sc_vendor, "OPTi");
 358                 break;
 359         case PCI_EHCI_VENDORID_SIS:
 360                 ksprintf(sc->sc_vendor, "SiS");
 361                 break;
 362         case PCI_EHCI_VENDORID_NVIDIA:
 363         case PCI_EHCI_VENDORID_NVIDIA2:
 364                 ksprintf(sc->sc_vendor, "nVidia");
 365                 break;
 366         case PCI_EHCI_VENDORID_VIA:
 367                 ksprintf(sc->sc_vendor, "VIA");
 368                 break;
 369         default:
 370                 if (bootverbose)
 371                         device_printf(self, "(New EHCI DeviceId=0x%08x)\n",
 372                             pci_get_devid(self));
 373                 ksprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self));
 374         }
 375
 376         err = bus_setup_intr(self, sc->irq_res, 0,
 377             (driver_intr_t *) ehci_intr, sc, &sc->ih, NULL);
 378         if (err) {
 379                 device_printf(self, "Could not setup irq, %d\n", err);
 380                 sc->ih = NULL;
 381                 ehci_pci_detach(self);
 382                 return ENXIO;
 383         }
 384
 385         /* Enable workaround for dropped interrupts as required */
 386         switch (pci_get_vendor(self)) {
 387         case PCI_EHCI_VENDORID_ATI:
 388         case PCI_EHCI_VENDORID_VIA:
 389                 sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG;
 390                 if (bootverbose)
 391                         device_printf(self,
 392                             "Dropped interrupts workaround enabled\n");
 393                 break;
 394         default:
 395                 break;
 396         }
 397
 398         /*
 399          * Find companion controllers.  According to the spec they always
 400          * have lower function numbers so they should be enumerated already.
 401          */
 402         parent = device_get_parent(self);
 403         res = device_get_children(parent, &neighbors, &count);
 404         if (res != 0) {
 405                 device_printf(self, "Error finding companion busses\n");
 406                 ehci_pci_detach(self);
 407                 return ENXIO;
 408         }
 409         ncomp = 0;
 410         slot = pci_get_slot(self);
 411         function = pci_get_function(self);
 412         for (i = 0; i < count; i++) {
 413                 if (pci_get_slot(neighbors[i]) == slot && \
 414                         pci_get_function(neighbors[i]) < function) {
 415                         res = device_get_children(neighbors[i],
 416                                 &nbus, &buscount);
 417                         if (res != 0 || buscount != 1)
 418                                 continue;
 419                         usb_sc = device_get_softc(nbus[0]);
 420                         if (usb_sc == NULL)
 421                                 continue;
 422                         bsc = usb_getbushandle(usb_sc);
 423                         if (bsc == NULL)
 424                                 continue;
 425                         DPRINTF(("ehci_pci_attach: companion %s\n",
 426                             device_get_nameunit(bsc->bdev)));
 427                         sc->sc_comps[ncomp++] = bsc;
 428                         if (ncomp >= EHCI_COMPANION_MAX)
 429                                 break;
 430                 }
 431         }
 432         sc->sc_ncomp = ncomp;
 433
 434         ehci_pci_takecontroller(self);
 435         err = ehci_init(sc);
 436         if (err == 0)
 437                 err = device_probe_and_attach(sc->sc_bus.bdev);
 438
 439         if (err) {
 440                 device_printf(self, "USB init failed err=%d\n", err);
 441                 ehci_pci_detach(self);
 442                 return EIO;
 443         }
 444         return 0;
 445 }
 446
 447 static int
 448 ehci_pci_detach(device_t self)
 449 {
 450         ehci_softc_t *sc = device_get_softc(self);
 451
 452         if (sc->sc_flags & EHCI_SCFLG_DONEINIT) {
 453                 ehci_detach(sc, 0);
 454                 sc->sc_flags &= ~EHCI_SCFLG_DONEINIT;
 455         }
 456
 457         /*
 458          * disable interrupts that might have been switched on in ehci_init
 459          */
 460         if (sc->iot && sc->ioh)
 461                 bus_space_write_4(sc->iot, sc->ioh, EHCI_USBINTR, 0);
 462
 463         if (sc->irq_res && sc->ih) {
 464                 int err = bus_teardown_intr(self, sc->irq_res, sc->ih);
 465
 466                 if (err)
 467                         /* XXX or should we panic? */
 468                         device_printf(self, "Could not tear down irq, %d\n",
 469                             err);
 470                 sc->ih = NULL;
 471         }
 472         if (sc->sc_bus.bdev) {
 473                 device_delete_child(self, sc->sc_bus.bdev);
 474                 sc->sc_bus.bdev = NULL;
 475         }
 476         if (sc->irq_res) {
 477                 bus_release_resource(self, SYS_RES_IRQ, 0, sc->irq_res);
 478                 sc->irq_res = NULL;
 479         }
 480         if (sc->io_res) {
 481                 bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, sc->io_res);
 482                 sc->io_res = NULL;
 483                 sc->iot = 0;
 484                 sc->ioh = 0;
 485         }
 486         return 0;
 487 }
 488
 489 static void
 490 ehci_pci_takecontroller(device_t self)
 491 {
 492         ehci_softc_t *sc = device_get_softc(self);
 493         u_int32_t cparams, eec, legsup;
 494         int eecp, i;
 495
 496         cparams = EREAD4(sc, EHCI_HCCPARAMS);
 497
 498         /* Synchronise with the BIOS if it owns the controller. */
 499         for (eecp = EHCI_HCC_EECP(cparams); eecp != 0;
 500              eecp = EHCI_EECP_NEXT(eec)) {
 501                 eec = pci_read_config(self, eecp, 4);
 502                 if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP)
 503                         continue;
 504                 legsup = eec;
 505                 pci_write_config(self, eecp, legsup | EHCI_LEGSUP_OSOWNED, 4);
 506                 if (legsup & EHCI_LEGSUP_BIOSOWNED) {
 507                         device_printf(sc->sc_bus.bdev,
 508                             "waiting for BIOS to give up control\n");
 509                         for (i = 0; i < 5000; i++) {
 510                                 legsup = pci_read_config(self, eecp, 4);
 511                                 if ((legsup & EHCI_LEGSUP_BIOSOWNED) == 0)
 512                                         break;
 513                                 DELAY(1000);
 514                         }
 515                         if (legsup & EHCI_LEGSUP_BIOSOWNED)
 516                                 device_printf(sc->sc_bus.bdev,
 517                                     "timed out waiting for BIOS\n");
 518                 }
 519         }
 520 }
 521
 522 /*
 523  * Return the controller to the BIOS.  Do we really need to do this?
 524  *
 525  * One thing we do need to do is give the chip reset (from the shutdown)
 526  * time to finish before handing anything back.  This fixes a machine
 527  * lockup.
 528  */
 529 static void
 530 ehci_pci_givecontroller(device_t self)
 531 {
 532         ehci_softc_t *sc = device_get_softc(self);
 533         u_int32_t cparams, eec, legsup;
 534         int eecp;
 535
 536         DELAY(1000);
 537         cparams = EREAD4(sc, EHCI_HCCPARAMS);
 538         for (eecp = EHCI_HCC_EECP(cparams); eecp != 0;
 539              eecp = EHCI_EECP_NEXT(eec)) {
 540                 eec = pci_read_config(self, eecp, 4);
 541                 if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP)
 542                         continue;
 543                 legsup = eec;
 544                 pci_write_config(self, eecp, legsup & ~EHCI_LEGSUP_OSOWNED, 4);
 545         }
 546 }
 547
 548 static device_method_t ehci_methods[] = {
 549         /* Device interface */
 550         DEVMETHOD(device_probe, ehci_pci_probe),
 551         DEVMETHOD(device_attach, ehci_pci_attach),
 552         DEVMETHOD(device_detach, ehci_pci_detach),
 553         DEVMETHOD(device_suspend, ehci_pci_suspend),
 554         DEVMETHOD(device_resume, ehci_pci_resume),
 555         DEVMETHOD(device_shutdown, ehci_pci_shutdown),
 556
 557         /* Bus interface */
 558         DEVMETHOD(bus_print_child, bus_generic_print_child),
 559
 560         {0, 0}
 561 };
 562
 563 static driver_t ehci_driver = {
 564         "ehci",
 565         ehci_methods,
 566         sizeof(ehci_softc_t),
 567 };
 568
 569 static devclass_t ehci_devclass;
 570
 571 DRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0);
 572 DRIVER_MODULE(ehci, cardbus, ehci_driver, ehci_devclass, 0, 0);