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

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2015 Semihalf.
      * Copyright (c) 2015 Stormshield.
      * 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 "opt_bus.h"
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/bus.h>
    #include <sys/condvar.h>
    #include <sys/kernel.h>
    #include <sys/module.h>
    
    #include <dev/usb/usb.h>
    #include <dev/usb/usbdi.h>
    
    #include <dev/usb/usb_core.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/xhci.h>
    
    #include <dev/ofw/ofw_bus.h>
    #include <dev/ofw/ofw_bus_subr.h>
    
    #include <dev/extres/phy/phy.h>
    
    #include "generic_xhci.h"
    
    static struct ofw_compat_data compat_data[] = {
            {"marvell,armada-380-xhci",     true},
            {"marvell,armada3700-xhci",     true},
            {"marvell,armada-8k-xhci",      true},
            {"generic-xhci",                true},
            {NULL,                          false}
    };
    
    static int
    generic_xhci_fdt_probe(device_t dev)
    {
    
            if (!ofw_bus_status_okay(dev))
                    return (ENXIO);
    
            if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
                    return (ENXIO);
    
            device_set_desc(dev, XHCI_HC_DEVSTR);
    
            return (BUS_PROBE_DEFAULT);
    }
    
    static int
    generic_xhci_fdt_attach(device_t dev)
    {
            phandle_t node;
            phy_t phy;
    
            node = ofw_bus_get_node(dev);
            if (phy_get_by_ofw_property(dev, node, "usb-phy", &phy) == 0)
                    if (phy_enable(phy) != 0)
                            device_printf(dev, "Cannot enable phy\n");
    
            return (generic_xhci_attach(dev));
    }
    
    static int
    generic_xhci_fdt_detach(device_t dev)
    {
           phandle_t node;
           phy_t phy;
           int err;
   
           err = generic_xhci_detach(dev);
           if (err != 0)
                   return (err);
   
           node = ofw_bus_get_node(dev);
           if (phy_get_by_ofw_property(dev, node, "usb-phy", &phy) == 0)
                   phy_release(phy);
   
           return (0);
   }
   
   static device_method_t xhci_fdt_methods[] = {
           /* Device interface */
           DEVMETHOD(device_probe, generic_xhci_fdt_probe),
           DEVMETHOD(device_attach, generic_xhci_fdt_attach),
           DEVMETHOD(device_detach, generic_xhci_fdt_detach),
   
           DEVMETHOD_END
   };
   
   DEFINE_CLASS_1(xhci, xhci_fdt_driver, xhci_fdt_methods,
       sizeof(struct xhci_softc), generic_xhci_driver);
   
   DRIVER_MODULE(xhci, simplebus, xhci_fdt_driver, 0, 0);
   MODULE_DEPEND(xhci, usb, 1, 1, 1);

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