FreeBSD/Linux Kernel Cross Reference
sys/powerpc/psim/openpic_iobus.c

     /*-
      * Copyright 2003 by Peter Grehan. 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.
     * 3. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * 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.
     *
     */
    
    /*
     * The psim iobus attachment for the OpenPIC interrupt controller.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD: releng/10.1/sys/powerpc/psim/openpic_iobus.c 218075 2011-01-29 20:58:38Z marcel $");
    
    #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 <dev/ofw/openfirm.h>
    
    #include <machine/bus.h>
    #include <machine/intr_machdep.h>
    #include <machine/md_var.h>
    #include <machine/pio.h>
    #include <machine/resource.h>
    
    #include <vm/vm.h>
    #include <vm/pmap.h>
    
    #include <sys/rman.h>
    
    #include <machine/openpicvar.h>
    #include <powerpc/psim/iobusvar.h>
    
    #include "pic_if.h"
    
    /*
     * PSIM IOBus interface
     */
    static int      openpic_iobus_probe(device_t);
    static int      openpic_iobus_attach(device_t);
    
    static device_method_t  openpic_iobus_methods[] = {
            /* Device interface */
            DEVMETHOD(device_probe,         openpic_iobus_probe),
            DEVMETHOD(device_attach,        openpic_iobus_attach),
    
            /* PIC interface */
            DEVMETHOD(pic_config,           openpic_config),
            DEVMETHOD(pic_dispatch,         openpic_dispatch),
            DEVMETHOD(pic_enable,           openpic_enable),
            DEVMETHOD(pic_eoi,              openpic_eoi),
            DEVMETHOD(pic_ipi,              openpic_ipi),
            DEVMETHOD(pic_mask,             openpic_mask),
            DEVMETHOD(pic_unmask,           openpic_unmask),
    
            { 0, 0 }
    };
    
    static driver_t openpic_iobus_driver = {
            "openpic",
            openpic_iobus_methods,
            sizeof(struct openpic_softc)
    };
    
    DRIVER_MODULE(openpic, iobus, openpic_iobus_driver, openpic_devclass, 0, 0);
    
    static int
    openpic_iobus_probe(device_t dev)
    {
            struct openpic_softc *sc;
            char *name;
    
            name = iobus_get_name(dev);
            if (strcmp(name, "interrupt-controller") != 0)
                   return (ENXIO);
   
           /*
            * The description was already printed out in the nexus
            * probe, so don't do it again here
            */
           device_set_desc(dev, OPENPIC_DEVSTR);
   
           sc = device_get_softc(dev);
           sc->sc_psim = 1;
   
           return (0);
   }
   
   static int
   openpic_iobus_attach(device_t dev)
   {
   
           return (openpic_common_attach(dev, 0));
   }

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