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/11.0/sys/dev/usb/controller/ehci_pci.c 297387 2016-03-29 12:50:42Z 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 0x1d268086:
  128                 return ("Intel Patsburg USB 2.0 controller");
  129         case 0x1d2d8086:
  130                 return ("Intel Patsburg USB 2.0 controller");
  131         case 0x1e268086:
  132                 return ("Intel Panther Point USB 2.0 controller");
  133         case 0x1e2d8086:
  134                 return ("Intel Panther Point USB 2.0 controller");
  135         case 0x1f2c8086:
  136                 return ("Intel Avoton USB 2.0 controller");
  137         case 0x25ad8086:
  138                 return "Intel 6300ESB USB 2.0 controller";
  139         case 0x24cd8086:
  140                 return "Intel 82801DB/L/M (ICH4) USB 2.0 controller";
  141         case 0x24dd8086:
  142                 return "Intel 82801EB/R (ICH5) USB 2.0 controller";
  143         case 0x265c8086:
  144                 return "Intel 82801FB (ICH6) USB 2.0 controller";
  145         case 0x268c8086:
  146                 return ("Intel 63XXESB USB 2.0 controller");
  147         case 0x27cc8086:
  148                 return "Intel 82801GB/R (ICH7) USB 2.0 controller";
  149         case 0x28368086:
  150                 return "Intel 82801H (ICH8) USB 2.0 controller USB2-A";
  151         case 0x283a8086:
  152                 return "Intel 82801H (ICH8) USB 2.0 controller USB2-B";
  153         case 0x293a8086:
  154                 return "Intel 82801I (ICH9) USB 2.0 controller";
  155         case 0x293c8086:
  156                 return "Intel 82801I (ICH9) USB 2.0 controller";
  157         case 0x3a3a8086:
  158                 return "Intel 82801JI (ICH10) USB 2.0 controller USB-A";
  159         case 0x3a3c8086:
  160                 return "Intel 82801JI (ICH10) USB 2.0 controller USB-B";
  161         case 0x3b348086:
  162                 return ("Intel PCH USB 2.0 controller USB-A");
  163         case 0x3b3c8086:
  164                 return ("Intel PCH USB 2.0 controller USB-B");
  165         case 0x8c268086:
  166                 return ("Intel Lynx Point USB 2.0 controller USB-A");
  167         case 0x8c2d8086:
  168                 return ("Intel Lynx Point USB 2.0 controller USB-B");
  169         case 0x8ca68086:
  170                 return ("Intel Wildcat Point USB 2.0 controller USB-A");
  171         case 0x8cad8086:
  172                 return ("Intel Wildcat Point USB 2.0 controller USB-B");
  173         case 0x8d268086:
  174                 return ("Intel Wellsburg USB 2.0 controller");
  175         case 0x8d2d8086:
  176                 return ("Intel Wellsburg USB 2.0 controller");
  177         case 0x9c268086:
  178                 return ("Intel Lynx Point LP USB 2.0 controller USB");
  179 
  180         case 0x00e01033:
  181                 return ("NEC uPD 72010x USB 2.0 controller");
  182 
  183         case 0x006810de:
  184                 return "NVIDIA nForce2 USB 2.0 controller";
  185         case 0x008810de:
  186                 return "NVIDIA nForce2 Ultra 400 USB 2.0 controller";
  187         case 0x00d810de:
  188                 return "NVIDIA nForce3 USB 2.0 controller";
  189         case 0x00e810de:
  190                 return "NVIDIA nForce3 250 USB 2.0 controller";
  191         case 0x005b10de:
  192                 return "NVIDIA nForce CK804 USB 2.0 controller";
  193         case 0x036d10de:
  194                 return "NVIDIA nForce MCP55 USB 2.0 controller";
  195         case 0x03f210de:
  196                 return "NVIDIA nForce MCP61 USB 2.0 controller";
  197         case 0x0aa610de:
  198                 return "NVIDIA nForce MCP79 USB 2.0 controller";
  199         case 0x0aa910de:
  200                 return "NVIDIA nForce MCP79 USB 2.0 controller";
  201         case 0x0aaa10de:
  202                 return "NVIDIA nForce MCP79 USB 2.0 controller";
  203 
  204         case 0x15621131:
  205                 return "Philips ISP156x USB 2.0 controller";
  206 
  207         case 0x31041106:
  208                 return ("VIA VT6202 USB 2.0 controller");
  209 
  210         default:
  211                 break;
  212         }
  213 
  214         if ((pci_get_class(self) == PCIC_SERIALBUS)
  215             && (pci_get_subclass(self) == PCIS_SERIALBUS_USB)
  216             && (pci_get_progif(self) == PCI_INTERFACE_EHCI)) {
  217                 return ("EHCI (generic) USB 2.0 controller");
  218         }
  219         return (NULL);                  /* dunno */
  220 }
  221 
  222 static int
  223 ehci_pci_probe(device_t self)
  224 {
  225         const char *desc = ehci_pci_match(self);
  226 
  227         if (desc) {
  228                 device_set_desc(self, desc);
  229                 return (BUS_PROBE_DEFAULT);
  230         } else {
  231                 return (ENXIO);
  232         }
  233 }
  234 
  235 static void
  236 ehci_pci_ati_quirk(device_t self, uint8_t is_sb700)
  237 {
  238         device_t smbdev;
  239         uint32_t val;
  240 
  241         if (is_sb700) {
  242                 /* Lookup SMBUS PCI device */
  243                 smbdev = pci_find_device(PCI_EHCI_VENDORID_ATI, 0x4385);
  244                 if (smbdev == NULL)
  245                         return;
  246                 val = pci_get_revid(smbdev);
  247                 if (val != 0x3a && val != 0x3b)
  248                         return;
  249         }
  250 
  251         /*
  252          * Note: this bit is described as reserved in SB700
  253          * Register Reference Guide.
  254          */
  255         val = pci_read_config(self, 0x53, 1);
  256         if (!(val & 0x8)) {
  257                 val |= 0x8;
  258                 pci_write_config(self, 0x53, val, 1);
  259                 device_printf(self, "AMD SB600/700 quirk applied\n");
  260         }
  261 }
  262 
  263 static void
  264 ehci_pci_via_quirk(device_t self)
  265 {
  266         uint32_t val;
  267 
  268         if ((pci_get_device(self) == 0x3104) && 
  269             ((pci_get_revid(self) & 0xf0) == 0x60)) {
  270                 /* Correct schedule sleep time to 10us */
  271                 val = pci_read_config(self, 0x4b, 1);
  272                 if (val & 0x20)
  273                         return;
  274                 val |= 0x20;
  275                 pci_write_config(self, 0x4b, val, 1);
  276                 device_printf(self, "VIA-quirk applied\n");
  277         }
  278 }
  279 
  280 static int
  281 ehci_pci_attach(device_t self)
  282 {
  283         ehci_softc_t *sc = device_get_softc(self);
  284         int err;
  285         int rid;
  286 
  287         /* initialise some bus fields */
  288         sc->sc_bus.parent = self;
  289         sc->sc_bus.devices = sc->sc_devices;
  290         sc->sc_bus.devices_max = EHCI_MAX_DEVICES;
  291         sc->sc_bus.dma_bits = 32;
  292 
  293         /* get all DMA memory */
  294         if (usb_bus_mem_alloc_all(&sc->sc_bus,
  295             USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) {
  296                 return (ENOMEM);
  297         }
  298 
  299         pci_enable_busmaster(self);
  300 
  301         switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USB_REV_MASK) {
  302         case PCI_USB_REV_PRE_1_0:
  303         case PCI_USB_REV_1_0:
  304         case PCI_USB_REV_1_1:
  305                 /*
  306                  * NOTE: some EHCI USB controllers have the wrong USB
  307                  * revision number. It appears those controllers are
  308                  * fully compliant so we just ignore this value in
  309                  * some common cases.
  310                  */
  311                 device_printf(self, "pre-2.0 USB revision (ignored)\n");
  312                 /* fallthrough */
  313         case PCI_USB_REV_2_0:
  314                 break;
  315         default:
  316                 /* Quirk for Parallels Desktop 4.0 */
  317                 device_printf(self, "USB revision is unknown. Assuming v2.0.\n");
  318                 break;
  319         }
  320 
  321         rid = PCI_CBMEM;
  322         sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
  323             RF_ACTIVE);
  324         if (!sc->sc_io_res) {
  325                 device_printf(self, "Could not map memory\n");
  326                 goto error;
  327         }
  328         sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
  329         sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
  330         sc->sc_io_size = rman_get_size(sc->sc_io_res);
  331 
  332         rid = 0;
  333         sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
  334             RF_SHAREABLE | RF_ACTIVE);
  335         if (sc->sc_irq_res == NULL) {
  336                 device_printf(self, "Could not allocate irq\n");
  337                 goto error;
  338         }
  339         sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
  340         if (!sc->sc_bus.bdev) {
  341                 device_printf(self, "Could not add USB device\n");
  342                 goto error;
  343         }
  344         device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
  345 
  346         /*
  347          * ehci_pci_match will never return NULL if ehci_pci_probe
  348          * succeeded
  349          */
  350         device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self));
  351         switch (pci_get_vendor(self)) {
  352         case PCI_EHCI_VENDORID_ACERLABS:
  353                 sprintf(sc->sc_vendor, "AcerLabs");
  354                 break;
  355         case PCI_EHCI_VENDORID_AMD:
  356                 sprintf(sc->sc_vendor, "AMD");
  357                 break;
  358         case PCI_EHCI_VENDORID_APPLE:
  359                 sprintf(sc->sc_vendor, "Apple");
  360                 break;
  361         case PCI_EHCI_VENDORID_ATI:
  362                 sprintf(sc->sc_vendor, "ATI");
  363                 break;
  364         case PCI_EHCI_VENDORID_CMDTECH:
  365                 sprintf(sc->sc_vendor, "CMDTECH");
  366                 break;
  367         case PCI_EHCI_VENDORID_INTEL:
  368                 sprintf(sc->sc_vendor, "Intel");
  369                 break;
  370         case PCI_EHCI_VENDORID_NEC:
  371                 sprintf(sc->sc_vendor, "NEC");
  372                 break;
  373         case PCI_EHCI_VENDORID_OPTI:
  374                 sprintf(sc->sc_vendor, "OPTi");
  375                 break;
  376         case PCI_EHCI_VENDORID_PHILIPS:
  377                 sprintf(sc->sc_vendor, "Philips");
  378                 break;
  379         case PCI_EHCI_VENDORID_SIS:
  380                 sprintf(sc->sc_vendor, "SiS");
  381                 break;
  382         case PCI_EHCI_VENDORID_NVIDIA:
  383         case PCI_EHCI_VENDORID_NVIDIA2:
  384                 sprintf(sc->sc_vendor, "nVidia");
  385                 break;
  386         case PCI_EHCI_VENDORID_VIA:
  387                 sprintf(sc->sc_vendor, "VIA");
  388                 break;
  389         default:
  390                 if (bootverbose)
  391                         device_printf(self, "(New EHCI DeviceId=0x%08x)\n",
  392                             pci_get_devid(self));
  393                 sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self));
  394         }
  395 
  396 #if (__FreeBSD_version >= 700031)
  397         err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
  398             NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl);
  399 #else
  400         err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
  401             (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl);
  402 #endif
  403         if (err) {
  404                 device_printf(self, "Could not setup irq, %d\n", err);
  405                 sc->sc_intr_hdl = NULL;
  406                 goto error;
  407         }
  408         ehci_pci_take_controller(self);
  409 
  410         /* Undocumented quirks taken from Linux */
  411 
  412         switch (pci_get_vendor(self)) {
  413         case PCI_EHCI_VENDORID_ATI:
  414                 /* SB600 and SB700 EHCI quirk */
  415                 switch (pci_get_device(self)) {
  416                 case 0x4386:
  417                         ehci_pci_ati_quirk(self, 0);
  418                         break;
  419                 case 0x4396:
  420                         ehci_pci_ati_quirk(self, 1);
  421                         break;
  422                 default:
  423                         break;
  424                 }
  425                 break;
  426 
  427         case PCI_EHCI_VENDORID_VIA:
  428                 ehci_pci_via_quirk(self);
  429                 break;
  430 
  431         default:
  432                 break;
  433         }
  434 
  435         /* Dropped interrupts workaround */
  436         switch (pci_get_vendor(self)) {
  437         case PCI_EHCI_VENDORID_ATI:
  438         case PCI_EHCI_VENDORID_VIA:
  439                 sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG;
  440                 if (bootverbose)
  441                         device_printf(self,
  442                             "Dropped interrupts workaround enabled\n");
  443                 break;
  444         default:
  445                 break;
  446         }
  447 
  448         /* Doorbell feature workaround */
  449         switch (pci_get_vendor(self)) {
  450         case PCI_EHCI_VENDORID_NVIDIA:
  451         case PCI_EHCI_VENDORID_NVIDIA2:
  452                 sc->sc_flags |= EHCI_SCFLG_IAADBUG;
  453                 if (bootverbose)
  454                         device_printf(self,
  455                             "Doorbell workaround enabled\n");
  456                 break;
  457         default:
  458                 break;
  459         }
  460 
  461         err = ehci_init(sc);
  462         if (!err) {
  463                 err = device_probe_and_attach(sc->sc_bus.bdev);
  464         }
  465         if (err) {
  466                 device_printf(self, "USB init failed err=%d\n", err);
  467                 goto error;
  468         }
  469         return (0);
  470 
  471 error:
  472         ehci_pci_detach(self);
  473         return (ENXIO);
  474 }
  475 
  476 static int
  477 ehci_pci_detach(device_t self)
  478 {
  479         ehci_softc_t *sc = device_get_softc(self);
  480         device_t bdev;
  481 
  482         if (sc->sc_bus.bdev) {
  483                 bdev = sc->sc_bus.bdev;
  484                 device_detach(bdev);
  485                 device_delete_child(self, bdev);
  486         }
  487         /* during module unload there are lots of children leftover */
  488         device_delete_children(self);
  489 
  490         pci_disable_busmaster(self);
  491 
  492         if (sc->sc_irq_res && sc->sc_intr_hdl) {
  493                 /*
  494                  * only call ehci_detach() after ehci_init()
  495                  */
  496                 ehci_detach(sc);
  497 
  498                 int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
  499 
  500                 if (err)
  501                         /* XXX or should we panic? */
  502                         device_printf(self, "Could not tear down irq, %d\n",
  503                             err);
  504                 sc->sc_intr_hdl = NULL;
  505         }
  506         if (sc->sc_irq_res) {
  507                 bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res);
  508                 sc->sc_irq_res = NULL;
  509         }
  510         if (sc->sc_io_res) {
  511                 bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM,
  512                     sc->sc_io_res);
  513                 sc->sc_io_res = NULL;
  514         }
  515         usb_bus_mem_free_all(&sc->sc_bus, &ehci_iterate_hw_softc);
  516 
  517         return (0);
  518 }
  519 
  520 static int
  521 ehci_pci_take_controller(device_t self)
  522 {
  523         ehci_softc_t *sc = device_get_softc(self);
  524         uint32_t cparams;
  525         uint32_t eec;
  526         uint16_t to;
  527         uint8_t eecp;
  528         uint8_t bios_sem;
  529 
  530         cparams = EREAD4(sc, EHCI_HCCPARAMS);
  531 
  532         /* Synchronise with the BIOS if it owns the controller. */
  533         for (eecp = EHCI_HCC_EECP(cparams); eecp != 0;
  534             eecp = EHCI_EECP_NEXT(eec)) {
  535                 eec = pci_read_config(self, eecp, 4);
  536                 if (EHCI_EECP_ID(eec) != EHCI_EC_LEGSUP) {
  537                         continue;
  538                 }
  539                 bios_sem = pci_read_config(self, eecp +
  540                     EHCI_LEGSUP_BIOS_SEM, 1);
  541                 if (bios_sem == 0) {
  542                         continue;
  543                 }
  544                 device_printf(sc->sc_bus.bdev, "waiting for BIOS "
  545                     "to give up control\n");
  546                 pci_write_config(self, eecp +
  547                     EHCI_LEGSUP_OS_SEM, 1, 1);
  548                 to = 500;
  549                 while (1) {
  550                         bios_sem = pci_read_config(self, eecp +
  551                             EHCI_LEGSUP_BIOS_SEM, 1);
  552                         if (bios_sem == 0)
  553                                 break;
  554 
  555                         if (--to == 0) {
  556                                 device_printf(sc->sc_bus.bdev,
  557                                     "timed out waiting for BIOS\n");
  558                                 break;
  559                         }
  560                         usb_pause_mtx(NULL, hz / 100);  /* wait 10ms */
  561                 }
  562         }
  563         return (0);
  564 }
  565 
  566 static device_method_t ehci_pci_methods[] = {
  567         /* Device interface */
  568         DEVMETHOD(device_probe, ehci_pci_probe),
  569         DEVMETHOD(device_attach, ehci_pci_attach),
  570         DEVMETHOD(device_detach, ehci_pci_detach),
  571         DEVMETHOD(device_suspend, bus_generic_suspend),
  572         DEVMETHOD(device_resume, bus_generic_resume),
  573         DEVMETHOD(device_shutdown, bus_generic_shutdown),
  574         DEVMETHOD(usb_take_controller, ehci_pci_take_controller),
  575 
  576         DEVMETHOD_END
  577 };
  578 
  579 static driver_t ehci_driver = {
  580         .name = "ehci",
  581         .methods = ehci_pci_methods,
  582         .size = sizeof(struct ehci_softc),
  583 };
  584 
  585 static devclass_t ehci_devclass;
  586 
  587 DRIVER_MODULE(ehci, pci, ehci_driver, ehci_devclass, 0, 0);
  588 MODULE_DEPEND(ehci, usb, 1, 1, 1);
Cache object: 4542e604b65398cce56a7e58be221dc0
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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
