320 lines
9.3 KiB
C
320 lines
9.3 KiB
C
/* $NetBSD: if_le.c,v 1.20 2000/06/29 07:14:17 mrg Exp $ */
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/*-
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* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
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* Simulation Facility, NASA Ames Research Center.
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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 NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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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 "opt_inet.h"
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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 <uvm/uvm_extern.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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#include <machine/cpu.h>
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#include <machine/nexus.h>
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#include <machine/scb.h>
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#include <dev/ic/lancereg.h>
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#include <dev/ic/lancevar.h>
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#include <dev/ic/am7990reg.h>
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#include <dev/ic/am7990var.h>
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#include "ioconf.h"
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#define LEVEC 0xd4 /* Interrupt vector on 3300/3400 */
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struct le_softc {
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struct am7990_softc sc_am7990; /* Must be first */
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struct evcnt sc_intrcnt;
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volatile u_short *sc_rap;
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volatile u_short *sc_rdp;
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};
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int le_ibus_match __P((struct device *, struct cfdata *, void *));
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void le_ibus_attach __P((struct device *, struct device *, void *));
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void lewrcsr __P((struct lance_softc *, u_int16_t, u_int16_t));
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u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t));
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void lance_copytobuf_gap2 __P((struct lance_softc *, void *, int, int));
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void lance_copyfrombuf_gap2 __P((struct lance_softc *, void *, int, int));
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void lance_zerobuf_gap2 __P((struct lance_softc *, int, int));
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struct cfattach le_ibus_ca = {
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sizeof(struct le_softc), le_ibus_match, le_ibus_attach
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};
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void
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lewrcsr(ls, port, val)
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struct lance_softc *ls;
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u_int16_t port, val;
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{
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struct le_softc *sc = (void *)ls;
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*sc->sc_rap = port;
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*sc->sc_rdp = val;
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}
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u_int16_t
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lerdcsr(ls, port)
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struct lance_softc *ls;
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u_int16_t port;
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{
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struct le_softc *sc = (void *)ls;
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*sc->sc_rap = port;
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return *sc->sc_rdp;
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}
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int
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le_ibus_match(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct bp_conf *bp = aux;
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if (strcmp("lance", bp->type))
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return 0;
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return 1;
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}
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void
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le_ibus_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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int *lance_addr;
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int i, vec, br;
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sc->sc_rdp = (short *)vax_map_physmem(0x20084400, 1);
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sc->sc_rap = sc->sc_rdp + 2;
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/*
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* Set interrupt vector, by forcing an interrupt.
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*/
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scb_vecref(0, 0); /* Clear vector ref */
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*sc->sc_rap = LE_CSR0;
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*sc->sc_rdp = LE_C0_STOP;
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DELAY(100);
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*sc->sc_rdp = LE_C0_INIT|LE_C0_INEA;
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DELAY(100000);
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i = scb_vecref(&vec, &br);
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if (i == 0 || vec == 0)
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return;
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scb_vecalloc(vec, (void (*)(void *))am7990_intr, sc,
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SCB_ISTACK, &sc->sc_intrcnt);
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evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL,
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self->dv_xname, "intr");
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printf(": vec %o ipl %x\n%s", vec, br, self->dv_xname);
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/*
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* MD functions.
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*/
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sc->sc_am7990.lsc.sc_rdcsr = lerdcsr;
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sc->sc_am7990.lsc.sc_wrcsr = lewrcsr;
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sc->sc_am7990.lsc.sc_nocarrier = NULL;
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sc->sc_am7990.lsc.sc_mem =
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(void *)uvm_km_valloc(kernel_map, (128 * 1024));
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if (sc->sc_am7990.lsc.sc_mem == 0)
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return;
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ioaccess((vaddr_t)sc->sc_am7990.lsc.sc_mem, 0x20120000,
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(128 * 1024) >> VAX_PGSHIFT);
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sc->sc_am7990.lsc.sc_addr = 0;
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sc->sc_am7990.lsc.sc_memsize = (64 * 1024);
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sc->sc_am7990.lsc.sc_copytodesc = lance_copytobuf_gap2;
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sc->sc_am7990.lsc.sc_copyfromdesc = lance_copyfrombuf_gap2;
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sc->sc_am7990.lsc.sc_copytobuf = lance_copytobuf_gap2;
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sc->sc_am7990.lsc.sc_copyfrombuf = lance_copyfrombuf_gap2;
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sc->sc_am7990.lsc.sc_zerobuf = lance_zerobuf_gap2;
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/*
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* Get the ethernet address out of rom
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*/
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lance_addr = (int *)vax_map_physmem(0x20084200, 1);
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for (i = 0; i < 6; i++)
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sc->sc_am7990.lsc.sc_enaddr[i] = (u_char)lance_addr[i];
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vax_unmap_physmem((vaddr_t)lance_addr, 1);
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bcopy(self->dv_xname, sc->sc_am7990.lsc.sc_ethercom.ec_if.if_xname,
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IFNAMSIZ);
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am7990_config(&sc->sc_am7990);
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}
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/*
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* gap2: two bytes of data followed by two bytes of pad.
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*
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* Buffers must be 4-byte aligned. The code doesn't worry about
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* doing an extra byte.
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*/
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void
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lance_copytobuf_gap2(sc, fromv, boff, len)
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struct lance_softc *sc;
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void *fromv;
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int boff;
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register int len;
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{
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volatile caddr_t buf = sc->sc_mem;
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register caddr_t from = fromv;
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register volatile u_int16_t *bptr;
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if (boff & 0x1) {
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/* handle unaligned first byte */
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bptr = ((volatile u_int16_t *)buf) + (boff - 1);
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*bptr = (*from++ << 8) | (*bptr & 0xff);
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bptr += 2;
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len--;
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} else
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bptr = ((volatile u_int16_t *)buf) + boff;
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while (len > 1) {
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*bptr = (from[1] << 8) | (from[0] & 0xff);
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bptr += 2;
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from += 2;
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len -= 2;
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}
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if (len == 1)
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*bptr = (u_int16_t)*from;
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}
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void
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lance_copyfrombuf_gap2(sc, tov, boff, len)
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struct lance_softc *sc;
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void *tov;
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int boff, len;
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{
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volatile caddr_t buf = sc->sc_mem;
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register caddr_t to = tov;
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register volatile u_int16_t *bptr;
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register u_int16_t tmp;
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if (boff & 0x1) {
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/* handle unaligned first byte */
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bptr = ((volatile u_int16_t *)buf) + (boff - 1);
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*to++ = (*bptr >> 8) & 0xff;
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bptr += 2;
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len--;
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} else
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bptr = ((volatile u_int16_t *)buf) + boff;
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while (len > 1) {
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tmp = *bptr;
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*to++ = tmp & 0xff;
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*to++ = (tmp >> 8) & 0xff;
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bptr += 2;
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len -= 2;
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}
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if (len == 1)
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*to = *bptr & 0xff;
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}
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void
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lance_zerobuf_gap2(sc, boff, len)
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struct lance_softc *sc;
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int boff, len;
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{
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volatile caddr_t buf = sc->sc_mem;
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register volatile u_int16_t *bptr;
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if ((unsigned)boff & 0x1) {
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bptr = ((volatile u_int16_t *)buf) + (boff - 1);
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*bptr &= 0xff;
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bptr += 2;
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len--;
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} else
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bptr = ((volatile u_int16_t *)buf) + boff;
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while (len > 0) {
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*bptr = 0;
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bptr += 2;
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len -= 2;
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}
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}
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