FreeBSD/Linux Kernel Cross Reference
sys/arm/broadcom/bcm2835/bcm283x_dwc_fdt.c

     /*
      * Copyright 2015 Andrew Turner.
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions are
      * met:
      *
      *  1. Redistributions of source code must retain the above copyright
     *     notice, this list of conditions and the following disclaimer.
     *  2. Redistributions in binary form must reproduce the above copyright
     *     notice, this list of conditions and the following disclaimer in the
     *     documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
     * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    #include <sys/param.h>
    #include <sys/kernel.h>
    #include <sys/bus.h>
    #include <sys/callout.h>
    #include <sys/condvar.h>
    #include <sys/module.h>
    
    #include <dev/ofw/ofw_bus_subr.h>
    
    #include <dev/usb/usb.h>
    #include <dev/usb/usbdi.h>
    
    #include <dev/usb/usb_busdma.h>
    #include <dev/usb/usb_process.h>
    
    #include <dev/usb/usb_controller.h>
    #include <dev/usb/usb_bus.h>
    
    #include <dev/usb/controller/dwc_otg.h>
    #include <dev/usb/controller/dwc_otg_fdt.h>
    
    #include <arm/broadcom/bcm2835/bcm2835_mbox_prop.h>
    
    static struct ofw_compat_data compat_data[] = {
            {"broadcom,bcm2835-usb",        1},
            {"brcm,bcm2835-usb",            1},
            {"brcm,bcm2708-usb",            1},
            {NULL,                          0}
    };
    
    static device_probe_t bcm283x_dwc_otg_probe;
    static device_attach_t bcm283x_dwc_otg_attach;
    
    static int
    bcm283x_dwc_otg_probe(device_t dev)
    {
    
            if (!ofw_bus_status_okay(dev))
                    return (ENXIO);
    
            if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
                    return (ENXIO);
    
            device_set_desc(dev, "DWC OTG 2.0 integrated USB controller (bcm283x)");
    
            return (BUS_PROBE_VENDOR);
    }
    
    static int
    bcm283x_dwc_otg_attach(device_t dev)
    {
            int err;
    
            err = bcm2835_mbox_set_power_state(BCM2835_MBOX_POWER_ID_USB_HCD, TRUE);
            if (err)
                    device_printf(dev, "failed to set power state, err=%d\n", err);
    
            return (dwc_otg_attach(dev));
    }
    
    static device_method_t bcm283x_dwc_otg_methods[] = {
            /* bus interface */
            DEVMETHOD(device_probe, bcm283x_dwc_otg_probe),
            DEVMETHOD(device_attach, bcm283x_dwc_otg_attach),
    
            DEVMETHOD_END
    };
    
    DEFINE_CLASS_1(bcm283x_dwcotg, bcm283x_dwc_otg_driver, bcm283x_dwc_otg_methods,
       sizeof(struct dwc_otg_fdt_softc), dwc_otg_driver);
   DRIVER_MODULE(bcm283x_dwcotg, simplebus, bcm283x_dwc_otg_driver, 0, 0);
   MODULE_DEPEND(bcm283x_dwcotg, usb, 1, 1, 1);

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