FreeBSD/Linux Kernel Cross Reference
sys/dev/sbus/if_en.c

     /*      $NetBSD: if_en.c,v 1.18 2002/12/10 13:44:47 pk Exp $    */
     
     /*
      *
      * Copyright (c) 1996 Charles D. Cranor and Washington University.
      * 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. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Charles D. Cranor and
     *      Washington University.
     * 4. 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.
     */
    
    /*
     *
     * i f _ e n _ s b u s . c  
     *
     * author: Chuck Cranor <chuck@ccrc.wustl.edu>
     * started: spring, 1996.
     *
     * SBUS glue for the eni155s card.
     */
    
    #include <sys/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: if_en.c,v 1.18 2002/12/10 13:44:47 pk Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/device.h>
    #include <sys/mbuf.h>
    #include <sys/socket.h>
    #include <sys/socketvar.h>
    
    #include <net/if.h>
    
    #include <machine/bus.h>
    #include <machine/intr.h>
    #include <machine/cpu.h>
    
    #include <dev/sbus/sbusvar.h>
    
    #include <dev/ic/midwayreg.h>
    #include <dev/ic/midwayvar.h>
    
    
    /*
     * local structures
     */
    struct en_sbus_softc {
            /* bus independent stuff */
            struct en_softc esc;            /* includes "device" structure */
    
            /* sbus glue */
            struct sbusdev  sc_sd;          /* sbus device */
    };
    
    
    /*
     * prototypes
     */
    static  int en_sbus_match __P((struct device *, struct cfdata *, void *));
    static  void en_sbus_attach __P((struct device *, struct device *, void *));
    
    /*
     * SBus autoconfig attachments
     */
    
    CFATTACH_DECL(en_sbus, sizeof(struct en_sbus_softc),
        en_sbus_match, en_sbus_attach, NULL, NULL);
    
    /***********************************************************************/
    
    /*
     * autoconfig stuff
     */
    
    static int
    en_sbus_match(parent, cf, aux)
           struct device *parent;
           struct cfdata *cf;
           void *aux;
   
   {
           struct sbus_attach_args *sa = aux;
   
           if (strcmp("ENI-155s", sa->sa_name) == 0)  {
                   if (CPU_ISSUN4M) {
   #ifdef DEBUG
                           printf("%s: sun4m DMA not supported yet\n",
                               sa->sa_name);
   #endif
                           return (0);
                   }
                   return (1);
           } else {
                   return (0);
           }
   }
   
   
   static void
   en_sbus_attach(parent, self, aux)
           struct device *parent, *self;
           void *aux;
   
   {
           struct sbus_attach_args *sa = aux;
           struct en_softc *sc = (void *)self;
           struct en_sbus_softc *scs = (void *)self;
   
           printf("\n");
   
           if (sbus_bus_map(sa->sa_bustag,
                            sa->sa_slot,
                            sa->sa_offset,
                            4*1024*1024,
                            0, &sc->en_base) != 0) {
                   printf("%s: cannot map registers\n", self->dv_xname);
                   return;
           }
   
           /* Establish interrupt handler */
           if (sa->sa_nintr != 0)
                   (void)bus_intr_establish(sa->sa_bustag, sa->sa_pri,
                                            IPL_NET, en_intr, sc);
   
           sc->ipl = sa->sa_pri;   /* appropriate? */
   
           sbus_establish(&scs->sc_sd, &sc->sc_dev);
   
           /*
            * done SBUS specific stuff
            */
           en_attach(sc);
   }

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