ehci_pci.c

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    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 
   38 #include <sys/cdefs.h>
   39 __FBSDID("$FreeBSD: releng/8.2/sys/dev/usb/controller/ehci_pci.c 215949 2010-11-27 19:47:58Z thompsa $");
   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 <sys/stdint.h>
   56 #include <sys/stddef.h>
   57 #include <sys/param.h>
   58 #include <sys/queue.h>
   59 #include <sys/types.h>
   60 #include <sys/systm.h>
   61 #include <sys/kernel.h>
   62 #include <sys/bus.h>
   63 #include <sys/linker_set.h>
   64 #include <sys/module.h>
   65 #include <sys/lock.h>
   66 #include <sys/mutex.h>
   67 #include <sys/condvar.h>
   68 #include <sys/sysctl.h>
   69 #include <sys/sx.h>
   70 #include <sys/unistd.h>
   71 #include <sys/callout.h>
   72 #include <sys/malloc.h>
   73 #include <sys/priv.h>
   74 
   75 #include <dev/usb/usb.h>
   76 #include <dev/usb/usbdi.h>
   77 
   78 #include <dev/usb/usb_core.h>
   79 #include <dev/usb/usb_busdma.h>
   80 #include <dev/usb/usb_process.h>
   81 #include <dev/usb/usb_util.h>
   82 
   83 #include <dev/usb/usb_controller.h>
   84 #include <dev/usb/usb_bus.h>
   85 #include <dev/usb/usb_pci.h>
   86 #include <dev/usb/controller/ehci.h>
   87 #include <dev/usb/controller/ehcireg.h>
   88 
   89 #define PCI_EHCI_VENDORID_ACERLABS      0x10b9
   90 #define PCI_EHCI_VENDORID_AMD           0x1022
   91 #define PCI_EHCI_VENDORID_APPLE         0x106b
   92 #define PCI_EHCI_VENDORID_ATI           0x1002
   93 #define PCI_EHCI_VENDORID_CMDTECH       0x1095
   94 #define PCI_EHCI_VENDORID_INTEL         0x8086
   95 #define PCI_EHCI_VENDORID_NEC           0x1033
   96 #define PCI_EHCI_VENDORID_OPTI          0x1045
   97 #define PCI_EHCI_VENDORID_PHILIPS       0x1131
   98 #define PCI_EHCI_VENDORID_SIS           0x1039
   99 #define PCI_EHCI_VENDORID_NVIDIA        0x12D2
  100 #define PCI_EHCI_VENDORID_NVIDIA2       0x10DE
  101 #define PCI_EHCI_VENDORID_VIA           0x1106
  102 
  103 static void ehci_pci_takecontroller(device_t self);
  104 
  105 static device_probe_t ehci_pci_probe;
  106 static device_attach_t ehci_pci_attach;
  107 static device_detach_t ehci_pci_detach;
  108 static device_suspend_t ehci_pci_suspend;
  109 static device_resume_t ehci_pci_resume;
  110 static device_shutdown_t ehci_pci_shutdown;
  111 
  112 static int
  113 ehci_pci_suspend(device_t self)
  114 {
  115         ehci_softc_t *sc = device_get_softc(self);
  116         int err;
  117 
  118         err = bus_generic_suspend(self);
  119         if (err)
  120                 return (err);
  121         ehci_suspend(sc);
  122         return (0);
  123 }
  124 
  125 static int
  126 ehci_pci_resume(device_t self)
  127 {
  128         ehci_softc_t *sc = device_get_softc(self);
  129 
  130         ehci_pci_takecontroller(self);
  131         ehci_resume(sc);
  132 
  133         bus_generic_resume(self);
  134 
  135         return (0);
  136 }
  137 
  138 static int
  139 ehci_pci_shutdown(device_t self)
  140 {
  141         ehci_softc_t *sc = device_get_softc(self);
  142         int err;
  143 
  144         err = bus_generic_shutdown(self);
  145         if (err)
  146                 return (err);
  147         ehci_shutdown(sc);
  148 
  149         return (0);
  150 }
  151 
  152 static const char *
  153 ehci_pci_match(device_t self)
  154 {
  155         uint32_t device_id = pci_get_devid(self);
  156 
  157         switch (device_id) {
  158         case 0x268c8086:
  159                 return ("Intel 63XXESB USB 2.0 controller");
  160 
  161         case 0x523910b9:
  162                 return "ALi M5239 USB 2.0 controller";
  163 
  164         case 0x10227463:
  165                 return "AMD 8111 USB 2.0 controller";
  166 
  167         case 0x20951022:
  168                 return ("AMD CS5536 (Geode) USB 2.0 controller");
  169 
  170         case 0x43451002:
  171                 return "ATI SB200 USB 2.0 controller";
  172         case 0x43731002:
  173                 return "ATI SB400 USB 2.0 controller";
  174 
  175         case 0x25ad8086:
  176                 return "Intel 6300ESB USB 2.0 controller";
  177         case 0x24cd8086:
  178                 return "Intel 82801DB/L/M (ICH4) USB 2.0 controller";
  179         case 0x24dd8086:
  180                 return "Intel 82801EB/R (ICH5) USB 2.0 controller";
  181         case 0x265c8086:
  182                 return "Intel 82801FB (ICH6) USB 2.0 controller";
  183         case 0x27cc8086:
  184                 return "Intel 82801GB/R (ICH7) USB 2.0 controller";
  185 
  186         case 0x28368086:
  187                 return "Intel 82801H (ICH8) USB 2.0 controller USB2-A";
  188         case 0x283a8086:
  189                 return "Intel 82801H (ICH8) USB 2.0 controller USB2-B";
  190         case 0x293a8086:
  191                 return "Intel 82801I (ICH9) USB 2.0 controller";
  192         case 0x293c8086:
  193                 return "Intel 82801I (ICH9) USB 2.0 controller";
  194         case 0x3a3a8086:
  195                 return "Intel 82801JI (ICH10) USB 2.0 controller USB-A";
  196         case 0x3a3c8086:
  197                 return "Intel 82801JI (ICH10) USB 2.0 controller USB-B";
  198         case 0x3b348086:
  199                 return ("Intel PCH USB 2.0 controller USB-A");
  200         case 0x3b3c8086:
  201                 return ("Intel PCH USB 2.0 controller USB-B");
  202 
  203         case 0x00e01033:
  204                 return ("NEC uPD 720100 USB 2.0 controller");
  205 
  206         case 0x006810de:
  207                 return "NVIDIA nForce2 USB 2.0 controller";
  208         case 0x008810de:
  209                 return "NVIDIA nForce2 Ultra 400 USB 2.0 controller";
  210         case 0x00d810de:
  211                 return "NVIDIA nForce3 USB 2.0 controller";
  212         case 0x00e810de:
  213                 return "NVIDIA nForce3 250 USB 2.0 controller";
  214         case 0x005b10de:
  215                 return "NVIDIA nForce4 USB 2.0 controller";
  216         case 0x036d10de:
  217                 return "NVIDIA nForce MCP55 USB 2.0 controller";
  218         case 0x03f210de:
  219                 return "NVIDIA nForce MCP61 USB 2.0 controller";
  220         case 0x0aa610de:
  221                 return "NVIDIA nForce MCP79 USB 2.0 controller";
  222         case 0x0aa910de:
  223                 return "NVIDIA nForce MCP79 USB 2.0 controller";
  224         case 0x0aaa10de:
  225                 return "NVIDIA nForce MCP79 USB 2.0 controller";
  226 
  227         case 0x15621131:
  228                 return "Philips ISP156x USB 2.0 controller";
  229 
  230         case 0x31041106:
  231                 return ("VIA VT6202 USB 2.0 controller");
  232 
  233         default:
  234                 break;
  235         }
  236 
  237         if ((pci_get_class(self) == PCIC_SERIALBUS)
  238             && (pci_get_subclass(self) == PCIS_SERIALBUS_USB)
  239             && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) {
  240                 return ("EHCI (generic) USB 2.0 controller");
  241         }
  242         return (NULL);                  /* dunno */
  243 }
  244 
  245 static int
  246 ehci_pci_probe(device_t self)
  247 {
  248         const char *desc = ehci_pci_match(self);
  249 
  250         if (desc) {
  251                 device_set_desc(self, desc);
  252                 return (0);
  253         } else {
  254                 return (ENXIO);
  255         }
  256 }
  257 
  258 static void
  259 ehci_pci_ati_quirk(device_t self, uint8_t is_sb700)
  260 {
  261         device_t smbdev;
  262         uint32_t val;
  263 
  264         if (is_sb700) {
  265                 /* Lookup SMBUS PCI device */
  266                 smbdev = pci_find_device(PCI_EHCI_VENDORID_ATI, 0x4385);
  267                 if (smbdev == NULL)
  268                         return;
  269                 val = pci_get_revid(smbdev);
  270                 if (val != 0x3a && val != 0x3b)
  271                         return;
  272         }
  273 
  274         /*
  275          * Note: this bit is described as reserved in SB700
  276          * Register Reference Guide.
  277          */
  278         val = pci_read_config(self, 0x53, 1);
  279         if (!(val & 0x8)) {
  280                 val |= 0x8;
  281                 pci_write_config(self, 0x53, val, 1);
  282                 device_printf(self, "AMD SB600/700 quirk applied\n");
  283         }
  284 }
  285 
  286 static void
  287 ehci_pci_via_quirk(device_t self)
  288 {
  289         uint32_t val;
  290 
  291         if ((pci_get_device(self) == 0x3104) && 
  292             ((pci_get_revid(self) & 0xf0) == 0x60)) {
  293                 /* Correct schedule sleep time to 10us */
  294                 val = pci_read_config(self, 0x4b, 1);
  295                 if (val & 0x20)
  296                         return;
  297                 pci_write_config(self, 0x4b, val, 1);
  298                 device_printf(self, "VIA-quirk applied\n");
  299         }
  300 }
  301 
  302 static int
  303 ehci_pci_attach(device_t self)
  304 {
  305         ehci_softc_t *sc = device_get_softc(self);
  306         int err;
  307         int rid;
  308 
  309         /* initialise some bus fields */
  310         sc->sc_bus.parent = self;
  311         sc->sc_bus.devices = sc->sc_devices;
  312         sc->sc_bus.devices_max = EHCI_MAX_DEVICES;
  313 
  314         /* get all DMA memory */
  315         if (usb_bus_mem_alloc_all(&sc->sc_bus,
  316             USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) {
  317                 return (ENOMEM);
  318         }
  319 
  320         pci_enable_busmaster(self);
  321 
  322         switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) {
  323         case PCI_USB_REV_PRE_1_0:
  324         case PCI_USB_REV_1_0:
  325         case PCI_USB_REV_1_1:
  326                 /*
  327                  * NOTE: some EHCI USB controllers have the wrong USB
  328                  * revision number. It appears those controllers are
  329                  * fully compliant so we just ignore this value in
  330                  * some common cases.
  331                  */
  332                 device_printf(self, "pre-2.0 USB revision (ignored)\n");
  333                 /* fallthrough */
  334         case PCI_USB_REV_2_0:
  335                 break;
  336         default:
  337                 /* Quirk for Parallels Desktop 4.0 */
  338                 device_printf(self, "USB revision is unknown. Assuming v2.0.\n");
  339                 break;
  340         }
  341 
  342         rid = PCI_CBMEM;
  343         sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
  344             RF_ACTIVE);
  345         if (!sc->sc_io_res) {
  346                 device_printf(self, "Could not map memory\n");
  347                 goto error;
  348         }
  349         sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
  350         sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
  351         sc->sc_io_size = rman_get_size(sc->sc_io_res);
  352 
  353         rid = 0;
  354         sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
  355             RF_SHAREABLE | RF_ACTIVE);
  356         if (sc->sc_irq_res == NULL) {
  357                 device_printf(self, "Could not allocate irq\n");
  358                 goto error;
  359         }
  360         sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
  361         if (!sc->sc_bus.bdev) {
  362                 device_printf(self, "Could not add USB device\n");
  363                 goto error;
  364         }
  365         device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
  366 
  367         /*
  368          * ehci_pci_match will never return NULL if ehci_pci_probe
  369          * succeeded
  370          */
  371         device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self));
  372         switch (pci_get_vendor(self)) {
  373         case PCI_EHCI_VENDORID_ACERLABS:
  374                 sprintf(sc->sc_vendor, "AcerLabs");
  375                 break;
  376         case PCI_EHCI_VENDORID_AMD:
  377                 sprintf(sc->sc_vendor, "AMD");
  378                 break;
  379         case PCI_EHCI_VENDORID_APPLE:
  380                 sprintf(sc->sc_vendor, "Apple");
  381                 break;
  382         case PCI_EHCI_VENDORID_ATI:
  383                 sprintf(sc->sc_vendor, "ATI");
  384                 break;
  385         case PCI_EHCI_VENDORID_CMDTECH:
  386                 sprintf(sc->sc_vendor, "CMDTECH");
  387                 break;
  388         case PCI_EHCI_VENDORID_INTEL:
  389                 sprintf(sc->sc_vendor, "Intel");
  390                 break;
  391         case PCI_EHCI_VENDORID_NEC:
  392                 sprintf(sc->sc_vendor, "NEC");
  393                 break;
  394         case PCI_EHCI_VENDORID_OPTI:
  395                 sprintf(sc->sc_vendor, "OPTi");
  396                 break;
  397         case PCI_EHCI_VENDORID_PHILIPS:
  398                 sprintf(sc->sc_vendor, "Philips");
  399                 break;
  400         case PCI_EHCI_VENDORID_SIS:
  401                 sprintf(sc->sc_vendor, "SiS");
  402                 break;
  403         case PCI_EHCI_VENDORID_NVIDIA:
  404         case PCI_EHCI_VENDORID_NVIDIA2:
  405                 sprintf(sc->sc_vendor, "nVidia");
  406                 break;
  407         case PCI_EHCI_VENDORID_VIA:
  408                 sprintf(sc->sc_vendor, "VIA");
  409                 break;
  410         default:
  411                 if (bootverbose)
  412                         device_printf(self, "(New EHCI DeviceId=0x%08x)\n",
  413                             pci_get_devid(self));
  414                 sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self));
  415         }
  416 
  417 #if (__FreeBSD_version >= 700031)
  418         err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
  419             NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl);
  420 #else
  421         err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
  422             (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl);
  423 #endif
  424         if (err) {
  425                 device_printf(self, "Could not setup irq, %d\n", err);
  426                 sc->sc_intr_hdl = NULL;
  427                 goto error;
  428         }
  429         ehci_pci_takecontroller(self);
  430 
  431         /* Undocumented quirks taken from Linux */
  432 
  433         switch (pci_get_vendor(self)) {
  434         case PCI_EHCI_VENDORID_ATI:
  435                 /* SB600 and SB700 EHCI quirk */
  436                 switch (pci_get_device(self)) {
  437                 case 0x4386:
  438                         ehci_pci_ati_quirk(self, 0);
  439                         break;
  440                 case 0x4396:
  441                         ehci_pci_ati_quirk(self, 1);
  442                         break;
  443                 default:
  444                         break;
  445                 }
  446                 break;
  447 
  448         case PCI_EHCI_VENDORID_VIA:
  449                 ehci_pci_via_quirk(self);
  450                 break;
  451 
  452         default:
  453                 break;
  454         }
  455 
  456         /* Dropped interrupts workaround */
  457         switch (pci_get_vendor(self)) {
  458         case PCI_EHCI_VENDORID_ATI:
  459         case PCI_EHCI_VENDORID_VIA:
  460                 sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG;
  461                 if (bootverbose)
  462                         device_printf(self,
  463                             "Dropped interrupts workaround enabled\n");
  464                 break;
  465         default:
  466                 break;
  467         }
  468 
  469         /* Doorbell feature workaround */
  470         switch (pci_get_vendor(self)) {
  471         case PCI_EHCI_VENDORID_NVIDIA:
  472         case PCI_EHCI_VENDORID_NVIDIA2:
  473                 sc->sc_flags |= EHCI_SCFLG_IAADBUG;
  474                 if (bootverbose)
  475                         device_printf(self,
  476                             "Doorbell workaround enabled\n");
  477                 break;
  478         default:
  479                 break;
  480         }
  481 
  482         err = ehci_init(sc);
  483         if (!err) {
  484                 err = device_probe_and_attach(sc->sc_bus.bdev);
  485         }
  486         if (err) {
  487                 device_printf(self, "USB init failed err=%d\n", err);
  488                 goto error;
  489         }
  490         return (0);
  491 
  492 error:
  493         ehci_pci_detach(self);
  494         return (ENXIO);
  495 }
  496 
  497 static int
  498 ehci_pci_detach(device_t self)
  499 {
  500         ehci_softc_t *sc = device_get_softc(self);
  501         device_t bdev;
  502 
  503         if (sc->sc_bus.bdev) {
  504                 bdev = sc->sc_bus.bdev;
  505                 device_detach(bdev);
  506                 device_delete_child(self, bdev);
  507         }
  508         /* during module unload there are lots of children leftover */
  509         device_delete_all_children(self);
  510 
  511         pci_disable_busmaster(self);
  512 
  513         /*
  514          * disable interrupts that might have been switched on in ehci_init
  515          */
  516         if (sc->sc_io_res) {
  517                 EWRITE4(sc, EHCI_USBINTR, 0);
  518         }
  519         if (sc->sc_irq_res && sc->sc_intr_hdl) {
  520                 /*
  521                  * only call ehci_detach() after ehci_init()
  522                  */
  523                 ehci_detach(sc);
  524 
  525                 int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
  526 
  527                 if (err)
  528                         /* XXX or should we panic? */
  529                         device_printf(self, "Could not tear down irq, %d\n",
  530                             err);
  531                 sc->sc_intr_hdl = NULL;
  532         }
  533         if (sc->sc_irq_res) {
  534                 bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res);
  535                 sc->sc_irq_res = NULL;
  536         }
  537         if (sc->sc_io_res) {
  538                 bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM,
  539                     sc->sc_io_res);
  540                 sc->sc_io_res = NULL;
  541         }
  542         usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc);
  543 
  544         return (0);
  545 }
  546 
  547 static void
  548 ehci_pci_takecontroller(device_t self)
  549 {
  550         ehci_softc_t *sc = device_get_softc(self);
  551         uint32_t cparams;
  552         uint32_t eec;
  553         uint16_t to;
  554         uint8_t eecp;
  555         uint8_t bios_sem;
  556 
  557         cparams = EREAD4(sc, EHCI_HCCPARAMS);
  558 
  559         /* Synchronise with the BIOS if it owns the controller. */
  560         for (eecp = EHCI_HCC_EECP(cparams); eecp != 0;
  561             eecp = EHCI_EECP_NEXT(eec)) {
  562                 eec = pci_read_config(self, eecp, 4);
  563                 if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) {
  564                         continue;
  565                 }
  566                 bios_sem = pci_read_config(self, eecp +
  567                     EHCI_LEGSUP_BIOS_SEM, 1);
  568                 if (bios_sem == 0) {
  569                         continue;
  570                 }
  571                 device_printf(sc->sc_bus.bdev, "waiting for BIOS "
  572                     "to give up control\n");
  573                 pci_write_config(self, eecp +
  574                     EHCI_LEGSUP_OS_SEM, 1, 1);
  575                 to = 500;
  576                 while (1) {
  577                         bios_sem = pci_read_config(self, eecp +
  578                             EHCI_LEGSUP_BIOS_SEM, 1);
  579                         if (bios_sem == 0)
  580                                 break;
  581 
  582                         if (--to == 0) {
  583                                 device_printf(sc->sc_bus.bdev,
  584                                     "timed out waiting for BIOS\n");
  585                                 break;
  586                         }
  587                         usb_pause_mtx(NULL, hz / 100);  /* wait 10ms */
  588                 }
  589         }
  590 }
  591 
  592 static driver_t ehci_driver =
  593 {
  594         .name = "ehci",
  595         .methods = (device_method_t[]){
  596                 /* device interface */
  597                 DEVMETHOD(device_probe, ehci_pci_probe),
  598                 DEVMETHOD(device_attach, ehci_pci_attach),
  599                 DEVMETHOD(device_detach, ehci_pci_detach),
  600                 DEVMETHOD(device_suspend, ehci_pci_suspend),
  601                 DEVMETHOD(device_resume, ehci_pci_resume),
  602                 DEVMETHOD(device_shutdown, ehci_pci_shutdown),
  603                 /* bus interface */
  604                 DEVMETHOD(bus_print_child, bus_generic_print_child),
  605 
  606                 {0, 0}
  607         },
  608         .size = sizeof(struct ehci_softc),
  609 };
  610 
  611 static devclass_t ehci_devclass;
  612 
  613 DRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0);
  614 MODULE_DEPEND(ehci, usb, 1, 1, 1);
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FreeBSD/Linux Kernel Cross Reference sys/dev/usb/controller/ehci_pci.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/usb/controller/ehci_pci.c
