159 lines
4.1 KiB
C
159 lines
4.1 KiB
C
/* $NetBSD: if_le.c,v 1.7 2008/04/04 12:25:06 tsutsui Exp $ */
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/*
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* Copyright (c) 1997, 1999
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* Matthias Drochner. All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.7 2008/04/04 12:25:06 tsutsui Exp $");
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#include "opt_inet.h"
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#include <sys/param.h>
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#include <sys/systm.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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#include <net/if_ether.h>
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#include <net/if_media.h>
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#ifdef 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/pte.h>
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#include <machine/autoconf.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/am79900reg.h>
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#include <dev/ic/am79900var.h>
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#include <cesfic/cesfic/isr.h>
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int lematch(device_t, cfdata_t, void *);
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void leattach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(le, sizeof(struct am79900_softc),
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lematch, leattach, NULL, NULL);
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int leintr(void *);
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void lewrcsr(struct lance_softc *, uint16_t, uint16_t);
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uint16_t lerdcsr(struct lance_softc *, uint16_t);
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static char *lebase, *lemembase;
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void
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lewrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
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{
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*(volatile int *)(lebase + 4) = port;
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*(volatile int *)(lebase + 0) = val;
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}
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uint16_t
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lerdcsr(struct lance_softc *sc, uint16_t port)
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{
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uint16_t val;
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*(volatile int *)(lebase + 4) = port;
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val = *(volatile int *)(lebase + 0);
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return (val);
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}
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int
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lematch(device_t parent, cfdata_t cf, void *aux)
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{
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return (1);
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}
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/*
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* Interface exists: make available by filling in network interface
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* record. System will initialize the interface when it is ready
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* to accept packets.
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*/
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extern void sic_enable_int(int, int, int, int, int);
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static char hwa[6] = {0x00,0x80,0xa2,0x00,0x30,0x23};
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void
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leattach(device_t parent, device_t self, void *aux)
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{
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struct lance_softc *sc = device_private(self);
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int i;
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mainbus_map(0x4c000000, 0x10000, 0, (void *)&lemembase);
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mainbus_map(0x48000000, 0x1000, 0, (void *)&lebase);
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sc->sc_dev = self;
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sc->sc_mem = lemembase;
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sc->sc_conf3 = LE_C3_BSWP;
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sc->sc_addr = 0x4c000000;
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sc->sc_memsize = 64 * 1024;
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if (cesfic_getetheraddr(sc->sc_enaddr)) {
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/* fallback */
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for (i = 0; i < sizeof(sc->sc_enaddr); i++) {
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sc->sc_enaddr[i] = hwa[i];
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}
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}
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sc->sc_copytodesc = lance_copytobuf_contig;
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sc->sc_copyfromdesc = lance_copyfrombuf_contig;
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sc->sc_copytobuf = lance_copytobuf_contig;
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sc->sc_copyfrombuf = lance_copyfrombuf_contig;
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sc->sc_zerobuf = lance_zerobuf_contig;
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sc->sc_rdcsr = lerdcsr;
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sc->sc_wrcsr = lewrcsr;
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sc->sc_hwinit = NULL;
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lewrcsr(sc, 4, 0x44);
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am79900_config((struct am79900_softc *)sc);
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/* Establish the interrupt handler. */
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(void) isrlink(leintr, sc, 3, ISRPRI_NET);
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sic_enable_int(17, 0, 1, 3, 0);
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}
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int
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leintr(void *arg)
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{
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struct lance_softc *sc = arg;
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uint16_t isr4;
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isr4 = lerdcsr(sc, 4);
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if (isr4 & 0x08) {
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lewrcsr(sc, 4, isr4);
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return (1);
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}
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return (am79900_intr(sc));
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}
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