FreeBSD/Linux Kernel Cross Reference
sys/powerpc/wii/wii_ipc.c

     /*-
      * Copyright (C) 2012 Margarida Gouveia
      * 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 ``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 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: releng/10.1/sys/powerpc/wii/wii_ipc.c 246655 2013-02-11 08:20:21Z rpaulo $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/module.h>
    #include <sys/bus.h>
    #include <sys/conf.h>
    #include <sys/kernel.h>
    #include <sys/malloc.h>
    #include <sys/rman.h>
    
    #include <machine/bus.h>
    #include <machine/platform.h>
    #include <machine/intr_machdep.h>
    #include <machine/resource.h>
    
    #include <powerpc/wii/wii_ipcreg.h>
    
    /*
     * Driver to interface with the Wii's IOS. IOS are small "microkernels" that run
     * on the Broadway GPU and provide access to system services like USB.
     */
    static int      wiiipc_probe(device_t);
    static int      wiiipc_attach(device_t);
    
    struct wiiipc_softc {
    };
    
    static device_method_t wiiipc_methods[] = {
            /* Device interface */
            DEVMETHOD(device_probe,         wiiipc_probe),
            DEVMETHOD(device_attach,        wiiipc_attach),
    
            DEVMETHOD_END
    };
    
    static driver_t wiiipc_driver = {
            "wiiipc",
            wiiipc_methods,
            sizeof(struct wiiipc_softc)
    };
    
    static devclass_t wiiipc_devclass;
    
    DRIVER_MODULE(wiiipc, wiibus, wiiipc_driver, wiiipc_devclass, 0, 0);
    
    static int
    wiiipc_probe(device_t dev)
    {
            device_set_desc(dev, "Nintendo Wii IOS IPC");
    
            return (BUS_PROBE_NOWILDCARD);
    }
    
    static int
    wiiipc_attach(device_t dev)
    {
            struct wiiipc_softc *sc;
    
            sc = device_get_softc(dev);
    #ifdef notyet
            sc->sc_dev = dev;
    
            sc->sc_rrid = 0;
            sc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
                &sc->sc_rrid, RF_ACTIVE);
            if (sc->sc_rres == NULL) {
                    device_printf(dev, "could not alloc mem resource\n");
                    return (ENXIO);
            }
            sc->sc_bt = rman_get_bustag(sc->sc_rres);
            sc->sc_bh = rman_get_bushandle(sc->sc_rres);
    #endif
   
           return (0);
   }

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