258 lines
6.8 KiB
C
258 lines
6.8 KiB
C
/* $NetBSD: if_le.c,v 1.8 1997/04/21 22:04:23 ragge Exp $ */
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/* #define LE_CHIP_IS_POKEY /* does VS2000 need this ??? */
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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/syslog.h>
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#include <sys/socket.h>
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#include <sys/device.h>
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#include <sys/reboot.h>
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#include <net/if.h>
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#include <net/if_ether.h>
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#include <net/if_media.h>
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#if INET
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#include <netinet/in.h>
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#include <netinet/if_inarp.h>
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#endif
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/*
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* This would be nice, but it's not yet there...
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*
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* #include <machine/autoconf.h>
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*/
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#include <machine/pte.h>
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#include <machine/cpu.h>
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#include <machine/mtpr.h>
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#include <machine/uvax.h>
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#include <machine/ka410.h>
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#include <machine/vsbus.h>
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#include <machine/rpb.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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#include <dev/tc/if_levar.h>
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#define xdebug(x)
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#ifdef LE_CHIP_IS_POKEY
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/*
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* access LANCE registers and double-check their contents
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*/
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#define wbflush() /* do nothing */
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void lewritereg();
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#define LERDWR(cntl, src, dst) { (dst) = (src); wbflush(); }
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#define LEWREG(src, dst) lewritereg(&(dst), (src))
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#endif
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#define LE_IOSIZE 64*1024 /* 64K of real-mem are reserved and already */
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extern void *le_iomem; /* mapped into virt-mem by cpu_steal_pages */
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extern u_long le_ioaddr; /* le_iomem is virt, le_ioaddr is phys */
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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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int lematch __P((struct device *, void *, void *));
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void leattach __P((struct device *, struct device *, void *));
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int leintr __P((void *sc));
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struct cfattach le_ca = {
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sizeof(struct le_softc), lematch, leattach
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};
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hide void lewrcsr __P ((struct am7990_softc *, u_int16_t, u_int16_t));
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hide u_int16_t lerdcsr __P ((struct am7990_softc *, u_int16_t));
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hide void
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lewrcsr(sc, port, val)
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struct am7990_softc *sc;
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u_int16_t port, val;
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{
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struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
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#ifdef LE_CHIP_IS_POKEY
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LEWREG(port, ler1->ler1_rap);
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LERDWR(port, val, ler1->ler1_rdp);
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#else
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ler1->ler1_rap = port;
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ler1->ler1_rdp = val;
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#endif
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}
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hide u_int16_t
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lerdcsr(sc, port)
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struct am7990_softc *sc;
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u_int16_t port;
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{
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struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
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u_int16_t val;
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#ifdef LE_CHIP_IS_POKEY
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LEWREG(port, ler1->ler1_rap);
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LERDWR(0, ler1->ler1_rdp, val);
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#else
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ler1->ler1_rap = port;
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val = ler1->ler1_rdp;
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#endif
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return (val);
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}
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integrate void
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lehwinit(sc)
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struct am7990_softc *sc;
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{
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}
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int
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lematch(parent, match, aux)
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struct device *parent;
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void *match, *aux;
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{
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struct cfdata *cf = match;
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struct confargs *ca = aux;
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/*
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* There could/should be more checks, but for now...
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*/
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if (strcmp(ca->ca_name, "le") &&
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strcmp(ca->ca_name, "am7990") &&
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strcmp(ca->ca_name, "AM7990"))
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return (0);
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return (1);
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}
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/*
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*
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*/
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void
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leattach(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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register struct le_softc *sc = (void *)self;
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struct confargs *ca = aux;
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u_char *cp; /* pointer to MAC address */
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int i;
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sc->sc_r1 = (void*)uvax_phys2virt(ca->ca_ioaddr);
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sc->sc_am7990.sc_conf3 = 0;
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sc->sc_am7990.sc_mem = le_iomem;
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sc->sc_am7990.sc_addr = le_ioaddr;
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sc->sc_am7990.sc_memsize = LE_IOSIZE;
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sc->sc_am7990.sc_wrcsr = lewrcsr;
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sc->sc_am7990.sc_rdcsr = lerdcsr;
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sc->sc_am7990.sc_hwinit = lehwinit;
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sc->sc_am7990.sc_nocarrier = NULL;
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xdebug(("leattach: mem=%x, addr=%x, size=%x (%d)\n",
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sc->sc_am7990.sc_mem, sc->sc_am7990.sc_addr,
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sc->sc_am7990.sc_memsize, sc->sc_am7990.sc_memsize));
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sc->sc_am7990.sc_copytodesc = am7990_copytobuf_contig;
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sc->sc_am7990.sc_copyfromdesc = am7990_copyfrombuf_contig;
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sc->sc_am7990.sc_copytobuf = am7990_copytobuf_contig;
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sc->sc_am7990.sc_copyfrombuf = am7990_copyfrombuf_contig;
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sc->sc_am7990.sc_zerobuf = am7990_zerobuf_contig;
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/*
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* Get the ethernet address out of rom
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*/
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for (i = 0; i < sizeof(sc->sc_am7990.sc_enaddr); i++) {
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int *eaddr = (void*)uvax_phys2virt(ca->ca_enaddr);
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sc->sc_am7990.sc_enaddr[i] = (u_char)eaddr[i];
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}
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bcopy(self->dv_xname, sc->sc_am7990.sc_ethercom.ec_if.if_xname,
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IFNAMSIZ);
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am7990_config(&sc->sc_am7990);
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#ifdef LEDEBUG
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sc->sc_am7990.sc_debug = LEDEBUG;
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#endif
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vsbus_intr_register(ca, am7990_intr, &sc->sc_am7990);
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vsbus_intr_enable(ca);
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/*
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* Register this device as boot device if we booted from it.
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* This will fail if there are more than one le in a machine,
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* fortunately there may be only one.
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*/
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if (B_TYPE(bootdev) == BDEV_LE)
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booted_from = self;
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}
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#ifdef LE_CHIP_IS_POKEY
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/*
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* Write a lance register port, reading it back to ensure success. This seems
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* to be necessary during initialization, since the chip appears to be a bit
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* pokey sometimes.
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*/
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void
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lewritereg(regptr, val)
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register volatile u_short *regptr;
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register u_short val;
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{
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register int i = 0;
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while (*regptr != val) {
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*regptr = val;
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wbflush();
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if (++i > 10000) {
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printf("le: Reg did not settle (to x%x): x%x\n", val,
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*regptr);
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return;
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}
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DELAY(100);
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}
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}
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#endif
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