FreeBSD/Linux Kernel Cross Reference
sys/mips/broadcom/bcma_nexus.c

     /*-
      * Copyright (c) 2016 Michael Zhilin <mizhka@gmail.com>
      * Copyright (c) 2015-2016 Landon Fuller <landon@freebsd.org>
      * 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,
     *    without modification.
     * 2. Redistributions in binary form must reproduce at minimum a disclaimer
     *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
     *    redistribution must be conditioned upon including a substantially
     *    similar Disclaimer requirement for further binary redistribution.
     *
     * NO WARRANTY
     * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
     * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
     * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
     * 
     * $FreeBSD$
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    #include <sys/param.h>
    #include <sys/kernel.h>
    #include <sys/bus.h>
    #include <sys/module.h>
    
    #include <machine/bus.h>
    #include <sys/rman.h>
    #include <machine/resource.h>
    
    #include <dev/bhnd/bhnd_ids.h>
    
    #include <dev/bhnd/bcma/bcmavar.h>
    #include <dev/bhnd/bcma/bcma_dmp.h>
    
    #include "bcm_mipsvar.h"
    #include "bcm_machdep.h"
    
    #include "bhnd_nexusvar.h"
    
    /*
     * Supports bcma(4) attachment to a MIPS nexus bus.
     */
    
    static int      bcma_nexus_attach(device_t);
    static int      bcma_nexus_probe(device_t);
    
    _Static_assert(BCMA_OOB_NUM_BUSLINES == BCM_MIPS_NINTR, "BCMA incompatible "
        "with generic NINTR");
    
    static int
    bcma_nexus_probe(device_t dev)
    {
            int error;
    
            switch (bcm_get_platform()->cid.chip_type) {
            case BHND_CHIPTYPE_BCMA:
            case BHND_CHIPTYPE_BCMA_ALT:
            case BHND_CHIPTYPE_UBUS:
                    break;
            default:
                    return (ENXIO);
            }
    
            if ((error = bcma_probe(dev)) > 0)
                    return (error);
    
            /* Set device description */
            bhnd_set_default_bus_desc(dev, &bcm_get_platform()->cid);
    
            return (BUS_PROBE_SPECIFIC);
    }
    
    static int
    bcma_nexus_attach(device_t dev)
    {
            int error;
    
            /* Perform initial attach and enumerate our children. */
            if ((error = bcma_attach(dev)))
                    goto failed;
    
            /* Delegate remainder to standard bhnd method implementation */
            if ((error = bhnd_generic_attach(dev)))
                    goto failed;
   
           return (0);
   
   failed:
           device_delete_children(dev);
           return (error);
   }
   
   static device_method_t bcma_nexus_methods[] = {
           DEVMETHOD(device_probe,                 bcma_nexus_probe),
           DEVMETHOD(device_attach,                bcma_nexus_attach),
   
           DEVMETHOD_END
   };
   
   DEFINE_CLASS_2(bhnd, bcma_nexus_driver, bcma_nexus_methods,
       sizeof(struct bcma_softc), bhnd_nexus_driver, bcma_driver);
   
   EARLY_DRIVER_MODULE(bcma_nexus, nexus, bcma_nexus_driver, bhnd_devclass, 0, 0,
       BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);

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