205 lines
5.5 KiB
C
205 lines
5.5 KiB
C
/* $NetBSD: if_le.c,v 1.28 1996/04/22 02:25:54 christos Exp $ */
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/*-
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* Copyright (c) 1995 Charles M. Hannum. All rights reserved.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell and Rick Macklem.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)if_le.c 8.2 (Berkeley) 11/16/93
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*/
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#include "bpfilter.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/syslog.h>
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#include <sys/socket.h>
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#include <sys/device.h>
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#include <net/if.h>
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#ifdef INET
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#endif
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#include <machine/autoconf.h>
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#include <machine/cpu.h>
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#include <machine/dvma.h>
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#include <machine/isr.h>
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#include <machine/obio.h>
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#include <machine/idprom.h>
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#include <sun3/dev/if_lereg.h>
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#include <sun3/dev/if_levar.h>
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#include <dev/ic/am7990reg.h>
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#define LE_NEED_BUF_CONTIG
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#include <dev/ic/am7990var.h>
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#define LE_SOFTC(unit) le_cd.cd_devs[unit]
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#define LE_DELAY(x) DELAY(x)
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static int le_match __P((struct device *, void *, void *));
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static void le_attach __P((struct device *, struct device *, void *));
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int leintr __P((void *));
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struct cfattach le_ca = {
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sizeof(struct le_softc), le_match, le_attach
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};
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struct cfdriver le_cd = {
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NULL, "le", DV_IFNET
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};
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integrate void
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lehwinit(sc)
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struct le_softc *sc;
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{
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}
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integrate void
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lewrcsr(sc, port, val)
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struct le_softc *sc;
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u_int16_t port, val;
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{
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register struct lereg1 *ler1 = sc->sc_r1;
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ler1->ler1_rap = port;
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ler1->ler1_rdp = val;
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}
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integrate u_int16_t
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lerdcsr(sc, port)
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struct le_softc *sc;
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u_int16_t port;
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{
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register struct lereg1 *ler1 = sc->sc_r1;
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u_int16_t val;
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ler1->ler1_rap = port;
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val = ler1->ler1_rdp;
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return (val);
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}
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int
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le_match(parent, vcf, aux)
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struct device *parent;
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void *vcf, *aux;
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{
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struct cfdata *cf = vcf;
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struct confargs *ca = aux;
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int pa, x;
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/*
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* OBIO match functions may be called for every possible
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* physical address, so match only our physical address.
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*/
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if ((pa = cf->cf_paddr) == -1) {
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/* Use our default PA. */
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pa = OBIO_AMD_ETHER;
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}
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if (pa != ca->ca_paddr)
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return (0);
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/* The peek returns -1 on bus error. */
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x = bus_peek(ca->ca_bustype, ca->ca_paddr, 1);
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return (x != -1);
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}
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void
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le_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct le_softc *sc = (void *)self;
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struct cfdata *cf = self->dv_cfdata;
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struct confargs *ca = aux;
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int intpri;
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/* Default interrupt level. */
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if ((intpri = cf->cf_intpri) == -1)
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intpri = 3;
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printf(" level %d", intpri);
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sc->sc_r1 = (struct lereg1 *)
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obio_alloc(ca->ca_paddr, OBIO_AMD_ETHER_SIZE);
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sc->sc_memsize = 0x4000; /* 16K */
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sc->sc_mem = dvma_malloc(sc->sc_memsize);
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sc->sc_addr = (u_long)sc->sc_mem & 0xffffff;
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sc->sc_conf3 = LE_C3_BSWP;
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idprom_etheraddr(sc->sc_arpcom.ac_enaddr);
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sc->sc_copytodesc = am7990_copytobuf_contig;
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sc->sc_copyfromdesc = am7990_copyfrombuf_contig;
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sc->sc_copytobuf = am7990_copytobuf_contig;
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sc->sc_copyfrombuf = am7990_copyfrombuf_contig;
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sc->sc_zerobuf = am7990_zerobuf_contig;
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sc->sc_arpcom.ac_if.if_name = le_cd.cd_name;
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leconfig(sc);
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/* Install interrupt handler. */
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isr_add_autovect(leintr, (void *)sc, intpri);
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}
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/*
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* Compare two Ether/802 addresses for equality, inlined and
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* unrolled for speed. I'd love to have an inline assembler
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* version of this... XXX: Who wanted that? mycroft?
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* I wrote one, but the following is just as efficient.
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* This expands to 10 short m68k instructions! -gwr
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* Note: use this like bcmp()
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*/
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static inline u_short
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ether_cmp(one, two)
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u_char *one, *two;
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{
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register u_short *a = (u_short *) one;
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register u_short *b = (u_short *) two;
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register u_short diff;
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diff = *a++ - *b++;
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diff |= *a++ - *b++;
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diff |= *a++ - *b++;
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return (diff);
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}
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#define ETHER_CMP ether_cmp
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#include <dev/ic/am7990.c>
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