237 lines
6.4 KiB
C
237 lines
6.4 KiB
C
/* $NetBSD: if_le.c,v 1.1 2000/01/05 08:48:56 nisimura 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 <sys/cdefs.h> /* RCS ID & Copyright macro defns */
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__KERNEL_RCSID(0, "$NetBSD: if_le.c,v 1.1 2000/01/05 08:48:56 nisimura Exp $");
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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/systm.h>
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#include <sys/mbuf.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/autoconf.h>
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#include <luna68k/luna68k/isr.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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/*
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* LANCE registers.
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*/
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struct lereg1 {
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volatile u_int16_t ler1_rdp; /* data port */
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volatile u_int16_t ler1_rap; /* register select port */
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};
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/*
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* Ethernet software status per interface.
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*
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* Each interface is referenced by a network interface structure,
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* arpcom.ac_if, which the routing code uses to locate the interface.
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* This structure contains the output queue for the interface, its address, ...
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*/
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struct le_softc {
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struct am7990_softc sc_am7990; /* glue to MI code */
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struct lereg1 *sc_r1; /* LANCE registers */
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};
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static int le_match __P((struct device *, struct cfdata *, void *));
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static void le_attach __P((struct device *, struct device *, void *));
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const struct cfattach le_ca = {
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sizeof(struct le_softc), le_match, le_attach
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};
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extern struct cfdriver le_cd;
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static void lesrcsr __P((struct lance_softc *, u_int16_t, u_int16_t));
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static u_int16_t lerdcsr __P((struct lance_softc *, u_int16_t));
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static void myetheraddr __P((u_int8_t *));
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static void
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lesrcsr(sc, port, val)
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struct lance_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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ler1->ler1_rap = port;
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ler1->ler1_rdp = val;
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}
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static u_int16_t
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lerdcsr(sc, port)
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struct lance_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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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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static int
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le_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 mainbus_attach_args *ma = aux;
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if (strcmp(ma->ma_name, le_cd.cd_name))
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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_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 *lesc = (void *)self;
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struct lance_softc *sc = &lesc->sc_am7990.lsc;
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struct mainbus_attach_args *ma = aux;
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/* Map control registers. */
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lesc->sc_r1 = (struct lereg1 *)ma->ma_addr; /* LANCE */
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sc->sc_mem = (void *)0x71010000; /* SRAM */
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sc->sc_conf3 = LE_C3_BSWP;
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sc->sc_addr = (u_long)sc->sc_mem & 0xffffff;
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sc->sc_memsize = 64 * 1024; /* 64KB */
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myetheraddr(sc->sc_enaddr);
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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 = lesrcsr;
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sc->sc_hwinit = NULL;
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am7990_config(&lesc->sc_am7990);
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isrlink_autovec(am7990_intr, (void *)sc, ma->ma_ilvl, ISRPRI_NET);
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}
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/*
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* LUNA-I has 1Mbit CPU ROM, which contains MAC address directly
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* readable at 0x4100FFE0 as a sequence of 12 ASCII characters.
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*
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* LUNA-II has 16Kbit NVSRAM on its ethercard, whose contents are
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* accessible 4bit-wise by ctl register operation. The register is
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* mapped at 0xF1000004.
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*/
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void
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myetheraddr(ether)
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u_int8_t *ether;
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{
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unsigned i, loc;
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u_int8_t *ea;
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volatile struct { u_int32_t ctl; } *ds1220;
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switch (machtype) {
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case LUNA_I:
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ea = (u_int8_t *)0x4101FFE0;
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for (i = 0; i < 6; i++) {
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int u, l;
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u = ea[0];
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u = (u < 'A') ? u & 0xf : u - 'A' + 10;
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l = ea[1];
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l = (l < 'A') ? l & 0xf : l - 'A' + 10;
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ether[i] = l | (u << 4);
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ea += 2;
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}
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break;
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case LUNA_II:
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ds1220 = (void *)0xF1000004;
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loc = 12;
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for (i = 0; i < 6; i++) {
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unsigned u, l, hex;
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ds1220->ctl = (loc) << 16;
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u = 0xf0 & (ds1220->ctl >> 12);
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ds1220->ctl = (loc + 1) << 16;
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l = 0x0f & (ds1220->ctl >> 16);
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hex = (u < '9') ? l : l + 9;
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ds1220->ctl = (loc + 2) << 16;
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u = 0xf0 & (ds1220->ctl >> 12);
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ds1220->ctl = (loc + 3) << 16;
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l = 0x0f & (ds1220->ctl >> 16);
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ether[i] = ((u < '9') ? l : l + 9) | (hex << 4);
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loc += 4;
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}
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break;
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default:
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ether[0] = 0x00; ether[1] = 0x00; ether[2] = 0x0a;
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ether[3] = 0xDE; ether[4] = 0xAD; ether[5] = 0x00;
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break;
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}
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}
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