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if_le.c revision 1.32 
      1 /*	$NetBSD: if_le.c,v 1.32 1996/10/30 00:24:36 gwr Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1995 Charles M. Hannum.  All rights reserved.
      5  * Copyright (c) 1992, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * Ralph Campbell and Rick Macklem.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *	This product includes software developed by the University of
     22  *	California, Berkeley and its contributors.
     23  * 4. Neither the name of the University nor the names of its contributors
     24  *    may be used to endorse or promote products derived from this software
     25  *    without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     30  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     37  * SUCH DAMAGE.
     38  *
     39  *	@(#)if_le.c	8.2 (Berkeley) 11/16/93
     40  */
     41 
     42 #include "bpfilter.h"
     43 
     44 #include <sys/param.h>
     45 #include <sys/systm.h>
     46 #include <sys/mbuf.h>
     47 #include <sys/syslog.h>
     48 #include <sys/socket.h>
     49 #include <sys/device.h>
     50 
     51 #include <net/if.h>
     52 
     53 #ifdef INET
     54 #include <netinet/in.h>
     55 #include <netinet/if_ether.h>
     56 #endif
     57 
     58 #include <machine/autoconf.h>
     59 #include <machine/cpu.h>
     60 #include <machine/dvma.h>
     61 #include <machine/isr.h>
     62 #include <machine/obio.h>
     63 #include <machine/idprom.h>
     64 
     65 #include <dev/ic/am7990reg.h>
     66 #include <dev/ic/am7990var.h>
     67 
     68 #include <sun3/dev/if_lereg.h>
     69 #include <sun3/dev/if_levar.h>
     70 
     71 static int	le_match __P((struct device *, void *, void *));
     72 static void	le_attach __P((struct device *, struct device *, void *));
     73 
     74 struct cfattach le_ca = {
     75 	sizeof(struct le_softc), le_match, le_attach
     76 };
     77 
     78 hide void lewrcsr __P((struct am7990_softc *, u_int16_t, u_int16_t));
     79 hide u_int16_t lerdcsr __P((struct am7990_softc *, u_int16_t));
     80 
     81 hide void
     82 lewrcsr(sc, port, val)
     83 	struct am7990_softc *sc;
     84 	u_int16_t port, val;
     85 {
     86 	register struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
     87 
     88 	ler1->ler1_rap = port;
     89 	ler1->ler1_rdp = val;
     90 }
     91 
     92 hide u_int16_t
     93 lerdcsr(sc, port)
     94 	struct am7990_softc *sc;
     95 	u_int16_t port;
     96 {
     97 	register struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
     98 	u_int16_t val;
     99 
    100 	ler1->ler1_rap = port;
    101 	val = ler1->ler1_rdp;
    102 	return (val);
    103 }
    104 
    105 int
    106 le_match(parent, vcf, aux)
    107 	struct device *parent;
    108 	void *vcf, *aux;
    109 {
    110 	struct cfdata *cf = vcf;
    111 	struct confargs *ca = aux;
    112 
    113 	/* Make sure there is something there... */
    114 	if (bus_peek(ca->ca_bustype, ca->ca_paddr, 1) == -1)
    115 		return (0);
    116 
    117 	/* Default interrupt priority. */
    118 	if (ca->ca_intpri == -1)
    119 		ca->ca_intpri = 3;
    120 
    121 	return (1);
    122 }
    123 
    124 void
    125 le_attach(parent, self, aux)
    126 	struct device *parent, *self;
    127 	void *aux;
    128 {
    129 	struct le_softc *lesc = (struct le_softc *)self;
    130 	struct am7990_softc *sc = &lesc->sc_am7990;
    131 	struct cfdata *cf = self->dv_cfdata;
    132 	struct confargs *ca = aux;
    133 
    134 	lesc->sc_r1 = (struct lereg1 *)
    135 	    obio_alloc(ca->ca_paddr, OBIO_AMD_ETHER_SIZE);
    136 
    137 	sc->sc_memsize = 0x4000;	/* 16K */
    138 	sc->sc_mem = dvma_malloc(sc->sc_memsize);
    139 	sc->sc_addr = (u_long)sc->sc_mem & 0xffffff;
    140 	sc->sc_conf3 = LE_C3_BSWP;
    141 
    142 	idprom_etheraddr(sc->sc_arpcom.ac_enaddr);
    143 
    144 	sc->sc_copytodesc = am7990_copytobuf_contig;
    145 	sc->sc_copyfromdesc = am7990_copyfrombuf_contig;
    146 	sc->sc_copytobuf = am7990_copytobuf_contig;
    147 	sc->sc_copyfrombuf = am7990_copyfrombuf_contig;
    148 	sc->sc_zerobuf = am7990_zerobuf_contig;
    149 
    150 	sc->sc_rdcsr = lerdcsr;
    151 	sc->sc_wrcsr = lewrcsr;
    152 	sc->sc_hwinit = NULL;
    153 
    154 	am7990_config(sc);
    155 
    156 	/* Install interrupt handler. */
    157 	isr_add_autovect(am7990_intr, (void *)sc, ca->ca_intpri);
    158 }
    159