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  *
   18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   28  * POSSIBILITY OF SUCH DAMAGE.
   29  */
   30 
   31 #include <sys/cdefs.h>
   32 __FBSDID("$FreeBSD: releng/10.4/sys/dev/usb/controller/ehci_pci.c 316651 2017-04-09 06:44:31Z mav $");
   33 
   34 /*
   35  * USB Enhanced Host Controller Driver, a.k.a. USB 2.0 controller.
   36  *
   37  * The EHCI 1.0 spec can be found at
   38  * http://developer.intel.com/technology/usb/download/ehci-r10.pdf
   39  * and the USB 2.0 spec at
   40  * http://www.usb.org/developers/docs/usb_20.zip
   41  */
   42 
   43 /* The low level controller code for EHCI has been split into
   44  * PCI probes and EHCI specific code. This was done to facilitate the
   45  * sharing of code between *BSD's
   46  */
   47 
   48 #include <sys/stdint.h>
   49 #include <sys/stddef.h>
   50 #include <sys/param.h>
   51 #include <sys/queue.h>
   52 #include <sys/types.h>
   53 #include <sys/systm.h>
   54 #include <sys/kernel.h>
   55 #include <sys/bus.h>
   56 #include <sys/module.h>
   57 #include <sys/lock.h>
   58 #include <sys/mutex.h>
   59 #include <sys/condvar.h>
   60 #include <sys/sysctl.h>
   61 #include <sys/sx.h>
   62 #include <sys/unistd.h>
   63 #include <sys/callout.h>
   64 #include <sys/malloc.h>
   65 #include <sys/priv.h>
   66 
   67 #include <dev/usb/usb.h>
   68 #include <dev/usb/usbdi.h>
   69 
   70 #include <dev/usb/usb_core.h>
   71 #include <dev/usb/usb_busdma.h>
   72 #include <dev/usb/usb_process.h>
   73 #include <dev/usb/usb_util.h>
   74 
   75 #include <dev/usb/usb_controller.h>
   76 #include <dev/usb/usb_bus.h>
   77 #include <dev/usb/usb_pci.h>
   78 #include <dev/usb/controller/ehci.h>
   79 #include <dev/usb/controller/ehcireg.h>
   80 #include "usb_if.h"
   81 
   82 #define PCI_EHCI_VENDORID_ACERLABS      0x10b9
   83 #define PCI_EHCI_VENDORID_AMD           0x1022
   84 #define PCI_EHCI_VENDORID_APPLE         0x106b
   85 #define PCI_EHCI_VENDORID_ATI           0x1002
   86 #define PCI_EHCI_VENDORID_CMDTECH       0x1095
   87 #define PCI_EHCI_VENDORID_INTEL         0x8086
   88 #define PCI_EHCI_VENDORID_NEC           0x1033
   89 #define PCI_EHCI_VENDORID_OPTI          0x1045
   90 #define PCI_EHCI_VENDORID_PHILIPS       0x1131
   91 #define PCI_EHCI_VENDORID_SIS           0x1039
   92 #define PCI_EHCI_VENDORID_NVIDIA        0x12D2
   93 #define PCI_EHCI_VENDORID_NVIDIA2       0x10DE
   94 #define PCI_EHCI_VENDORID_VIA           0x1106
   95 
   96 static device_probe_t ehci_pci_probe;
   97 static device_attach_t ehci_pci_attach;
   98 static device_detach_t ehci_pci_detach;
   99 static usb_take_controller_t ehci_pci_take_controller;
  100 
  101 static const char *
  102 ehci_pci_match(device_t self)
  103 {
  104         uint32_t device_id = pci_get_devid(self);
  105 
  106         switch (device_id) {
  107         case 0x523910b9:
  108                 return "ALi M5239 USB 2.0 controller";
  109 
  110         case 0x10227463:
  111                 return "AMD 8111 USB 2.0 controller";
  112 
  113         case 0x20951022:
  114                 return ("AMD CS5536 (Geode) USB 2.0 controller");
  115         case 0x78081022:
  116                 return ("AMD FCH USB 2.0 controller");
  117 
  118         case 0x43451002:
  119                 return "ATI SB200 USB 2.0 controller";
  120         case 0x43731002:
  121                 return "ATI SB400 USB 2.0 controller";
  122         case 0x43961002:
  123                 return ("AMD SB7x0/SB8x0/SB9x0 USB 2.0 controller");
  124 
  125         case 0x0f348086:
  126                 return ("Intel BayTrail USB 2.0 controller");
  127         case 0x1c268086:
  128                 return ("Intel Cougar Point USB 2.0 controller");
  129         case 0x1c2d8086:
  130                 return ("Intel Cougar Point USB 2.0 controller");
  131         case 0x1d268086:
  132                 return ("Intel Patsburg USB 2.0 controller");
  133         case 0x1d2d8086:
  134                 return ("Intel Patsburg USB 2.0 controller");
  135         case 0x1e268086:
  136                 return ("Intel Panther Point USB 2.0 controller");
  137         case 0x1e2d8086:
  138                 return ("Intel Panther Point USB 2.0 controller");
  139         case 0x1f2c8086:
  140                 return ("Intel Avoton USB 2.0 controller");
  141         case 0x25ad8086:
  142                 return "Intel 6300ESB USB 2.0 controller";
  143         case 0x24cd8086:
  144                 return "Intel 82801DB/L/M (ICH4) USB 2.0 controller";
  145         case 0x24dd8086:
  146                 return "Intel 82801EB/R (ICH5) USB 2.0 controller";
  147         case 0x265c8086:
  148                 return "Intel 82801FB (ICH6) USB 2.0 controller";
  149         case 0x268c8086:
  150                 return ("Intel 63XXESB USB 2.0 controller");
  151         case 0x27cc8086:
  152                 return "Intel 82801GB/R (ICH7) USB 2.0 controller";
  153         case 0x28368086:
  154                 return "Intel 82801H (ICH8) USB 2.0 controller USB2-A";
  155         case 0x283a8086:
  156                 return "Intel 82801H (ICH8) USB 2.0 controller USB2-B";
  157         case 0x293a8086:
  158                 return "Intel 82801I (ICH9) USB 2.0 controller";
  159         case 0x293c8086:
  160                 return "Intel 82801I (ICH9) USB 2.0 controller";
  161         case 0x3a3a8086:
  162                 return "Intel 82801JI (ICH10) USB 2.0 controller USB-A";
  163         case 0x3a3c8086:
  164                 return "Intel 82801JI (ICH10) USB 2.0 controller USB-B";
  165         case 0x3b348086:
  166                 return ("Intel PCH USB 2.0 controller USB-A");
  167         case 0x3b3c8086:
  168                 return ("Intel PCH USB 2.0 controller USB-B");
  169         case 0x8c268086:
  170                 return ("Intel Lynx Point USB 2.0 controller USB-A");
  171         case 0x8c2d8086:
  172                 return ("Intel Lynx Point USB 2.0 controller USB-B");
  173         case 0x8ca68086:
  174                 return ("Intel Wildcat Point USB 2.0 controller USB-A");
  175         case 0x8cad8086:
  176                 return ("Intel Wildcat Point USB 2.0 controller USB-B");
  177         case 0x8d268086:
  178                 return ("Intel Wellsburg USB 2.0 controller");
  179         case 0x8d2d8086:
  180                 return ("Intel Wellsburg USB 2.0 controller");
  181         case 0x9c268086:
  182                 return ("Intel Lynx Point LP USB 2.0 controller USB");
  183 
  184         case 0x00e01033:
  185                 return ("NEC uPD 72010x USB 2.0 controller");
  186 
  187         case 0x006810de:
  188                 return "NVIDIA nForce2 USB 2.0 controller";
  189         case 0x008810de:
  190                 return "NVIDIA nForce2 Ultra 400 USB 2.0 controller";
  191         case 0x00d810de:
  192                 return "NVIDIA nForce3 USB 2.0 controller";
  193         case 0x00e810de:
  194                 return "NVIDIA nForce3 250 USB 2.0 controller";
  195         case 0x005b10de:
  196                 return "NVIDIA nForce CK804 USB 2.0 controller";
  197         case 0x036d10de:
  198                 return "NVIDIA nForce MCP55 USB 2.0 controller";
  199         case 0x03f210de:
  200                 return "NVIDIA nForce MCP61 USB 2.0 controller";
  201         case 0x0aa610de:
  202                 return "NVIDIA nForce MCP79 USB 2.0 controller";
  203         case 0x0aa910de:
  204                 return "NVIDIA nForce MCP79 USB 2.0 controller";
  205         case 0x0aaa10de:
  206                 return "NVIDIA nForce MCP79 USB 2.0 controller";
  207 
  208         case 0x15621131:
  209                 return "Philips ISP156x USB 2.0 controller";
  210 
  211         case 0x31041106:
  212                 return ("VIA VT6202 USB 2.0 controller");
  213 
  214         default:
  215                 break;
  216         }
  217 
  218         if ((pci_get_class(self) == PCIC_SERIALBUS)
  219             && (pci_get_subclass(self) == PCIS_SERIALBUS_USB)
  220             && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) {
  221                 return ("EHCI (generic) USB 2.0 controller");
  222         }
  223         return (NULL);                  /* dunno */
  224 }
  225 
  226 static int
  227 ehci_pci_probe(device_t self)
  228 {
  229         const char *desc = ehci_pci_match(self);
  230 
  231         if (desc) {
  232                 device_set_desc(self, desc);
  233                 return (BUS_PROBE_DEFAULT);
  234         } else {
  235                 return (ENXIO);
  236         }
  237 }
  238 
  239 static void
  240 ehci_pci_ati_quirk(device_t self, uint8_t is_sb700)
  241 {
  242         device_t smbdev;
  243         uint32_t val;
  244 
  245         if (is_sb700) {
  246                 /* Lookup SMBUS PCI device */
  247                 smbdev = pci_find_device(PCI_EHCI_VENDORID_ATI, 0x4385);
  248                 if (smbdev == NULL)
  249                         return;
  250                 val = pci_get_revid(smbdev);
  251                 if (val != 0x3a && val != 0x3b)
  252                         return;
  253         }
  254 
  255         /*
  256          * Note: this bit is described as reserved in SB700
  257          * Register Reference Guide.
  258          */
  259         val = pci_read_config(self, 0x53, 1);
  260         if (!(val & 0x8)) {
  261                 val |= 0x8;
  262                 pci_write_config(self, 0x53, val, 1);
  263                 device_printf(self, "AMD SB600/700 quirk applied\n");
  264         }
  265 }
  266 
  267 static void
  268 ehci_pci_via_quirk(device_t self)
  269 {
  270         uint32_t val;
  271 
  272         if ((pci_get_device(self) == 0x3104) && 
  273             ((pci_get_revid(self) & 0xf0) == 0x60)) {
  274                 /* Correct schedule sleep time to 10us */
  275                 val = pci_read_config(self, 0x4b, 1);
  276                 if (val & 0x20)
  277                         return;
  278                 val |= 0x20;
  279                 pci_write_config(self, 0x4b, val, 1);
  280                 device_printf(self, "VIA-quirk applied\n");
  281         }
  282 }
  283 
  284 static int
  285 ehci_pci_attach(device_t self)
  286 {
  287         ehci_softc_t *sc = device_get_softc(self);
  288         int err;
  289         int rid;
  290 
  291         /* initialise some bus fields */
  292         sc->sc_bus.parent = self;
  293         sc->sc_bus.devices = sc->sc_devices;
  294         sc->sc_bus.devices_max = EHCI_MAX_DEVICES;
  295         sc->sc_bus.dma_bits = 32;
  296 
  297         /* get all DMA memory */
  298         if (usb_bus_mem_alloc_all(&sc->sc_bus,
  299             USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) {
  300                 return (ENOMEM);
  301         }
  302 
  303         pci_enable_busmaster(self);
  304 
  305         switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) {
  306         case PCI_USB_REV_PRE_1_0:
  307         case PCI_USB_REV_1_0:
  308         case PCI_USB_REV_1_1:
  309                 /*
  310                  * NOTE: some EHCI USB controllers have the wrong USB
  311                  * revision number. It appears those controllers are
  312                  * fully compliant so we just ignore this value in
  313                  * some common cases.
  314                  */
  315                 device_printf(self, "pre-2.0 USB revision (ignored)\n");
  316                 /* fallthrough */
  317         case PCI_USB_REV_2_0:
  318                 break;
  319         default:
  320                 /* Quirk for Parallels Desktop 4.0 */
  321                 device_printf(self, "USB revision is unknown. Assuming v2.0.\n");
  322                 break;
  323         }
  324 
  325         rid = PCI_CBMEM;
  326         sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
  327             RF_ACTIVE);
  328         if (!sc->sc_io_res) {
  329                 device_printf(self, "Could not map memory\n");
  330                 goto error;
  331         }
  332         sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
  333         sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
  334         sc->sc_io_size = rman_get_size(sc->sc_io_res);
  335 
  336         rid = 0;
  337         sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
  338             RF_SHAREABLE | RF_ACTIVE);
  339         if (sc->sc_irq_res == NULL) {
  340                 device_printf(self, "Could not allocate irq\n");
  341                 goto error;
  342         }
  343         sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
  344         if (!sc->sc_bus.bdev) {
  345                 device_printf(self, "Could not add USB device\n");
  346                 goto error;
  347         }
  348         device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
  349 
  350         /*
  351          * ehci_pci_match will never return NULL if ehci_pci_probe
  352          * succeeded
  353          */
  354         device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self));
  355         switch (pci_get_vendor(self)) {
  356         case PCI_EHCI_VENDORID_ACERLABS:
  357                 sprintf(sc->sc_vendor, "AcerLabs");
  358                 break;
  359         case PCI_EHCI_VENDORID_AMD:
  360                 sprintf(sc->sc_vendor, "AMD");
  361                 break;
  362         case PCI_EHCI_VENDORID_APPLE:
  363                 sprintf(sc->sc_vendor, "Apple");
  364                 break;
  365         case PCI_EHCI_VENDORID_ATI:
  366                 sprintf(sc->sc_vendor, "ATI");
  367                 break;
  368         case PCI_EHCI_VENDORID_CMDTECH:
  369                 sprintf(sc->sc_vendor, "CMDTECH");
  370                 break;
  371         case PCI_EHCI_VENDORID_INTEL:
  372                 sprintf(sc->sc_vendor, "Intel");
  373                 break;
  374         case PCI_EHCI_VENDORID_NEC:
  375                 sprintf(sc->sc_vendor, "NEC");
  376                 break;
  377         case PCI_EHCI_VENDORID_OPTI:
  378                 sprintf(sc->sc_vendor, "OPTi");
  379                 break;
  380         case PCI_EHCI_VENDORID_PHILIPS:
  381                 sprintf(sc->sc_vendor, "Philips");
  382                 break;
  383         case PCI_EHCI_VENDORID_SIS:
  384                 sprintf(sc->sc_vendor, "SiS");
  385                 break;
  386         case PCI_EHCI_VENDORID_NVIDIA:
  387         case PCI_EHCI_VENDORID_NVIDIA2:
  388                 sprintf(sc->sc_vendor, "nVidia");
  389                 break;
  390         case PCI_EHCI_VENDORID_VIA:
  391                 sprintf(sc->sc_vendor, "VIA");
  392                 break;
  393         default:
  394                 if (bootverbose)
  395                         device_printf(self, "(New EHCI DeviceId=0x%08x)\n",
  396                             pci_get_devid(self));
  397                 sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self));
  398         }
  399 
  400 #if (__FreeBSD_version >= 700031)
  401         err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
  402             NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl);
  403 #else
  404         err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
  405             (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl);
  406 #endif
  407         if (err) {
  408                 device_printf(self, "Could not setup irq, %d\n", err);
  409                 sc->sc_intr_hdl = NULL;
  410                 goto error;
  411         }
  412         ehci_pci_take_controller(self);
  413 
  414         /* Undocumented quirks taken from Linux */
  415 
  416         switch (pci_get_vendor(self)) {
  417         case PCI_EHCI_VENDORID_ATI:
  418                 /* SB600 and SB700 EHCI quirk */
  419                 switch (pci_get_device(self)) {
  420                 case 0x4386:
  421                         ehci_pci_ati_quirk(self, 0);
  422                         break;
  423                 case 0x4396:
  424                         ehci_pci_ati_quirk(self, 1);
  425                         break;
  426                 default:
  427                         break;
  428                 }
  429                 break;
  430 
  431         case PCI_EHCI_VENDORID_VIA:
  432                 ehci_pci_via_quirk(self);
  433                 break;
  434 
  435         default:
  436                 break;
  437         }
  438 
  439         /* Dropped interrupts workaround */
  440         switch (pci_get_vendor(self)) {
  441         case PCI_EHCI_VENDORID_ATI:
  442         case PCI_EHCI_VENDORID_VIA:
  443                 sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG;
  444                 if (bootverbose)
  445                         device_printf(self,
  446                             "Dropped interrupts workaround enabled\n");
  447                 break;
  448         default:
  449                 break;
  450         }
  451 
  452         /* Doorbell feature workaround */
  453         switch (pci_get_vendor(self)) {
  454         case PCI_EHCI_VENDORID_NVIDIA:
  455         case PCI_EHCI_VENDORID_NVIDIA2:
  456                 sc->sc_flags |= EHCI_SCFLG_IAADBUG;
  457                 if (bootverbose)
  458                         device_printf(self,
  459                             "Doorbell workaround enabled\n");
  460                 break;
  461         default:
  462                 break;
  463         }
  464 
  465         err = ehci_init(sc);
  466         if (!err) {
  467                 err = device_probe_and_attach(sc->sc_bus.bdev);
  468         }
  469         if (err) {
  470                 device_printf(self, "USB init failed err=%d\n", err);
  471                 goto error;
  472         }
  473         return (0);
  474 
  475 error:
  476         ehci_pci_detach(self);
  477         return (ENXIO);
  478 }
  479 
  480 static int
  481 ehci_pci_detach(device_t self)
  482 {
  483         ehci_softc_t *sc = device_get_softc(self);
  484 
  485         /* during module unload there are lots of children leftover */
  486         device_delete_children(self);
  487 
  488         pci_disable_busmaster(self);
  489 
  490         if (sc->sc_irq_res && sc->sc_intr_hdl) {
  491                 /*
  492                  * only call ehci_detach() after ehci_init()
  493                  */
  494                 ehci_detach(sc);
  495 
  496                 int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
  497 
  498                 if (err)
  499                         /* XXX or should we panic? */
  500                         device_printf(self, "Could not tear down irq, %d\n",
  501                             err);
  502                 sc->sc_intr_hdl = NULL;
  503         }
  504         if (sc->sc_irq_res) {
  505                 bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res);
  506                 sc->sc_irq_res = NULL;
  507         }
  508         if (sc->sc_io_res) {
  509                 bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM,
  510                     sc->sc_io_res);
  511                 sc->sc_io_res = NULL;
  512         }
  513         usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc);
  514 
  515         return (0);
  516 }
  517 
  518 static int
  519 ehci_pci_take_controller(device_t self)
  520 {
  521         ehci_softc_t *sc = device_get_softc(self);
  522         uint32_t cparams;
  523         uint32_t eec;
  524         uint16_t to;
  525         uint8_t eecp;
  526         uint8_t bios_sem;
  527 
  528         cparams = EREAD4(sc, EHCI_HCCPARAMS);
  529 
  530         /* Synchronise with the BIOS if it owns the controller. */
  531         for (eecp = EHCI_HCC_EECP(cparams); eecp != 0;
  532             eecp = EHCI_EECP_NEXT(eec)) {
  533                 eec = pci_read_config(self, eecp, 4);
  534                 if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) {
  535                         continue;
  536                 }
  537                 bios_sem = pci_read_config(self, eecp +
  538                     EHCI_LEGSUP_BIOS_SEM, 1);
  539                 if (bios_sem == 0) {
  540                         continue;
  541                 }
  542                 device_printf(sc->sc_bus.bdev, "waiting for BIOS "
  543                     "to give up control\n");
  544                 pci_write_config(self, eecp +
  545                     EHCI_LEGSUP_OS_SEM, 1, 1);
  546                 to = 500;
  547                 while (1) {
  548                         bios_sem = pci_read_config(self, eecp +
  549                             EHCI_LEGSUP_BIOS_SEM, 1);
  550                         if (bios_sem == 0)
  551                                 break;
  552 
  553                         if (--to == 0) {
  554                                 device_printf(sc->sc_bus.bdev,
  555                                     "timed out waiting for BIOS\n");
  556                                 break;
  557                         }
  558                         usb_pause_mtx(NULL, hz / 100);  /* wait 10ms */
  559                 }
  560         }
  561         return (0);
  562 }
  563 
  564 static device_method_t ehci_pci_methods[] = {
  565         /* Device interface */
  566         DEVMETHOD(device_probe, ehci_pci_probe),
  567         DEVMETHOD(device_attach, ehci_pci_attach),
  568         DEVMETHOD(device_detach, ehci_pci_detach),
  569         DEVMETHOD(device_suspend, bus_generic_suspend),
  570         DEVMETHOD(device_resume, bus_generic_resume),
  571         DEVMETHOD(device_shutdown, bus_generic_shutdown),
  572         DEVMETHOD(usb_take_controller, ehci_pci_take_controller),
  573 
  574         DEVMETHOD_END
  575 };
  576 
  577 static driver_t ehci_driver = {
  578         .name = "ehci",
  579         .methods = ehci_pci_methods,
  580         .size = sizeof(struct ehci_softc),
  581 };
  582 
  583 static devclass_t ehci_devclass;
  584 
  585 DRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0);
  586 MODULE_DEPEND(ehci, usb, 1, 1, 1);
Cache object: bde059da4c52cb11428c6d8596893285
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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
