dwc_otg_acpi.c

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2012 Hans Petter Selasky.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  */
   27 
   28 #include <sys/cdefs.h>
   29 __FBSDID("$FreeBSD$");
   30 
   31 #include "opt_acpi.h"
   32 
   33 #include <sys/param.h>
   34 #include <sys/systm.h>
   35 #include <sys/bus.h>
   36 #include <sys/condvar.h>
   37 #include <sys/kernel.h>
   38 #include <sys/lock.h>
   39 #include <sys/malloc.h>
   40 #include <sys/module.h>
   41 #include <sys/mutex.h>
   42 #include <sys/rman.h>
   43 
   44 #include <contrib/dev/acpica/include/acpi.h>
   45 #include <contrib/dev/acpica/include/accommon.h>
   46 
   47 #include <dev/acpica/acpivar.h>
   48 
   49 #include <dev/usb/usb.h>
   50 #include <dev/usb/usbdi.h>
   51 
   52 #include <dev/usb/usb_core.h>
   53 #include <dev/usb/usb_busdma.h>
   54 #include <dev/usb/usb_process.h>
   55 #include <dev/usb/usb_util.h>
   56 
   57 #include <dev/usb/usb_controller.h>
   58 #include <dev/usb/usb_bus.h>
   59 
   60 #include <dev/usb/controller/dwc_otg.h>
   61 
   62 static device_probe_t dwc_otg_probe;
   63 static device_attach_t dwc_otg_attach;
   64 static device_attach_t dwc_otg_detach;
   65 
   66 static char *dwc_otg_ids[] = {
   67         "BCM2848",
   68         NULL
   69 };
   70 
   71 static int
   72 dwc_otg_probe(device_t dev)
   73 {
   74         int rv;
   75 
   76         if (acpi_disabled("dwc_otg"))
   77                 return (ENXIO);
   78 
   79         rv = ACPI_ID_PROBE(device_get_parent(dev), dev, dwc_otg_ids, NULL);
   80         if (rv > 0)
   81                 return (rv);
   82 
   83         device_set_desc(dev, "DWC OTG 2.0 integrated USB controller");
   84 
   85         return (BUS_PROBE_DEFAULT);
   86 }
   87 
   88 static int
   89 dwc_otg_attach(device_t dev)
   90 {
   91         struct dwc_otg_softc *sc = device_get_softc(dev);
   92         int err;
   93         int rid;
   94 
   95         sc->sc_bus.parent = dev;
   96 
   97         /* assume device mode (this is only used for the Raspberry Pi 4's
   98          * USB-C port, which only works in device mode) */
   99         sc->sc_mode = DWC_MODE_DEVICE;
  100 
  101         rid = 0;
  102         sc->sc_io_res =
  103             bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
  104 
  105         if (sc->sc_io_res == NULL)
  106                 goto error;
  107 
  108         rid = 0;
  109         sc->sc_irq_res =
  110             bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
  111         if (sc->sc_irq_res == NULL)
  112                 goto error;
  113 
  114         err = dwc_otg_init(sc);
  115         if (err == 0) {
  116                 err = device_probe_and_attach(sc->sc_bus.bdev);
  117         }
  118         if (err)
  119                 goto error;
  120 
  121         return (0);
  122 
  123 error:
  124         dwc_otg_detach(dev);
  125         return (ENXIO);
  126 }
  127 
  128 static int
  129 dwc_otg_detach(device_t dev)
  130 {
  131         struct dwc_otg_softc *sc = device_get_softc(dev);
  132 
  133         /* during module unload there are lots of children leftover */
  134         device_delete_children(dev);
  135 
  136         if (sc->sc_irq_res && sc->sc_intr_hdl) {
  137                 /*
  138                  * only call dwc_otg_uninit() after dwc_otg_init()
  139                  */
  140                 dwc_otg_uninit(sc);
  141 
  142                 bus_teardown_intr(dev, sc->sc_irq_res,
  143                     sc->sc_intr_hdl);
  144                 sc->sc_intr_hdl = NULL;
  145         }
  146         /* free IRQ channel, if any */
  147         if (sc->sc_irq_res) {
  148                 bus_release_resource(dev, SYS_RES_IRQ, 0,
  149                     sc->sc_irq_res);
  150                 sc->sc_irq_res = NULL;
  151         }
  152         /* free memory resource, if any */
  153         if (sc->sc_io_res) {
  154                 bus_release_resource(dev, SYS_RES_MEMORY, 0,
  155                     sc->sc_io_res);
  156                 sc->sc_io_res = NULL;
  157         }
  158         usb_bus_mem_free_all(&sc->sc_bus, NULL);
  159 
  160         return (0);
  161 }
  162 
  163 static device_method_t dwc_otg_methods[] = {
  164         /* Device interface */
  165         DEVMETHOD(device_probe, dwc_otg_probe),
  166         DEVMETHOD(device_attach, dwc_otg_attach),
  167         DEVMETHOD(device_detach, dwc_otg_detach),
  168         DEVMETHOD(device_suspend, bus_generic_suspend),
  169         DEVMETHOD(device_resume, bus_generic_resume),
  170         DEVMETHOD(device_shutdown, bus_generic_shutdown),
  171 
  172         DEVMETHOD_END
  173 };
  174 
  175 static driver_t dwc_otg_driver = {
  176         .name = "dwcotg",
  177         .methods = dwc_otg_methods,
  178         .size = sizeof(struct dwc_otg_softc),
  179 };
  180 
  181 DRIVER_MODULE(dwcotg, acpi, dwc_otg_driver, 0, 0);
  182 MODULE_DEPEND(dwcotg, usb, 1, 1, 1);

Cache object: 331f4be03e2f43fb02abbd44108366a3

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

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

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