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if_ze.c revision 1.1 
      1 /*      $NetBSD: if_ze.c,v 1.1 1999/08/08 11:45:02 ragge Exp $ */
      2 /*
      3  * Copyright (c) 1999 Ludd, University of Lule}, Sweden. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  * 3. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *      This product includes software developed at Ludd, University of
     16  *      Lule}, Sweden and its contributors.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/param.h>
     33 #include <sys/socket.h>
     34 #include <sys/device.h>
     35 #include <sys/systm.h>
     36 #include <sys/sockio.h>
     37 
     38 #include <net/if.h>
     39 #include <net/if_ether.h>
     40 #include <net/if_dl.h>
     41 
     42 #include <netinet/in.h>
     43 #include <netinet/if_inarp.h>
     44 
     45 #if NBPFILTER > 0
     46 #include <net/bpf.h>
     47 #include <net/bpfdesc.h>
     48 #endif
     49 
     50 #include <machine/bus.h>
     51 #include <machine/nexus.h>
     52 #include <machine/cpu.h>
     53 #include <machine/scb.h>
     54 
     55 #include <dev/ic/sgecreg.h>
     56 #include <dev/ic/sgecvar.h>
     57 
     58 #include "ioconf.h"
     59 /*
     60  * Adresses.
     61  */
     62 #define SGECADDR        0x20008000
     63 #define NISA_ROM        0x20084000
     64 #define	SGECVEC		0x108
     65 
     66 static	int	zematch __P((struct device *, struct cfdata *, void *));
     67 static	void	zeattach __P((struct device *, struct device *, void *));
     68 static	void	zeintr __P((int));
     69 
     70 struct	cfattach ze_ca = {
     71 	sizeof(struct ze_softc), zematch, zeattach
     72 };
     73 
     74 /*
     75  * Check for present SGEC.
     76  */
     77 int
     78 zematch(parent, cf, aux)
     79 	struct	device *parent;
     80 	struct	cfdata *cf;
     81 	void	*aux;
     82 {
     83 	struct bp_conf *bp = aux;
     84 
     85 	/*
     86 	 * Should some more intelligent checking be done???
     87 	 */
     88 	if (strcmp(bp->type, "sgec") == 0)
     89 		return 1;
     90 	return 0;
     91 }
     92 
     93 /*
     94  * Interface exists: make available by filling in network interface
     95  * record.  System will initialize the interface when it is ready
     96  * to accept packets.
     97  */
     98 void
     99 zeattach(parent, self, aux)
    100 	struct	device *parent, *self;
    101 	void	*aux;
    102 {
    103 	extern struct vax_bus_dma_tag vax_bus_dma_tag;
    104 	struct	ze_softc *sc = (struct ze_softc *)self;
    105 	int *ea, i;
    106 
    107 	/*
    108 	 * Map in SGEC registers.
    109 	 */
    110 	sc->sc_ioh = vax_map_physmem(SGECADDR, 1);
    111 	sc->sc_iot = 0; /* :-) */
    112 	sc->sc_dmat = &vax_bus_dma_tag;
    113 
    114 	sc->sc_intvec = SGECVEC;
    115 
    116 	/*
    117 	 * Map in, read and release ethernet rom address.
    118 	 */
    119 	ea = (int *)vax_map_physmem(NISA_ROM, 1);
    120 	for (i = 0; i < ETHER_ADDR_LEN; i++)
    121 		sc->sc_enaddr[i] = (ea[i] >> 8) & 0377;
    122 	vax_unmap_physmem((vaddr_t)ea, 1);
    123 
    124 	scb_vecalloc(SGECVEC, zeintr, sc->sc_dev.dv_unit, SCB_ISTACK);
    125 
    126 	sgec_attach(sc);
    127 }
    128 
    129 void
    130 zeintr(unit)
    131 	int	unit;
    132 {
    133 	struct ze_softc *sc = ze_cd.cd_devs[unit];
    134 
    135 	sgec_intr(sc);
    136 }
    137