229 lines
6.1 KiB
C
229 lines
6.1 KiB
C
/* $NetBSD: if_le.c,v 1.37 1997/01/30 09:18:53 thorpej 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/mtpr.h>
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#include <hp300/hp300/isr.h>
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#ifdef USELEDS
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#include <hp300/hp300/led.h>
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#endif
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#include <dev/ic/am7990reg.h>
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#include <dev/ic/am7990var.h>
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#include <hp300/dev/dioreg.h>
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#include <hp300/dev/diovar.h>
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#include <hp300/dev/diodevs.h>
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#include <hp300/dev/if_lereg.h>
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#include <hp300/dev/if_levar.h>
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int lematch __P((struct device *, struct cfdata *, void *));
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void leattach __P((struct device *, struct device *, void *));
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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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int leintr __P((void *));
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/* offsets for: ID, REGS, MEM, NVRAM */
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int lestd[] = { 0, 0x4000, 0x8000, 0xC008 };
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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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register struct lereg0 *ler0 = ((struct le_softc *)sc)->sc_r0;
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register struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
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do {
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ler1->ler1_rap = port;
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} while ((ler0->ler0_status & LE_ACK) == 0);
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do {
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ler1->ler1_rdp = val;
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} while ((ler0->ler0_status & LE_ACK) == 0);
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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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register struct lereg0 *ler0 = ((struct le_softc *)sc)->sc_r0;
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register struct lereg1 *ler1 = ((struct le_softc *)sc)->sc_r1;
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u_int16_t val;
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do {
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ler1->ler1_rap = port;
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} while ((ler0->ler0_status & LE_ACK) == 0);
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do {
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val = ler1->ler1_rdp;
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} while ((ler0->ler0_status & LE_ACK) == 0);
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return (val);
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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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struct cfdata *match;
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void *aux;
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{
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struct dio_attach_args *da = aux;
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if (da->da_id == DIO_DEVICE_ID_LAN)
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return (1);
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return (0);
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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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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 lereg0 *ler0;
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struct dio_attach_args *da = aux;
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struct le_softc *lesc = (struct le_softc *)self;
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caddr_t addr;
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struct am7990_softc *sc = &lesc->sc_am7990;
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char *cp;
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int i, ipl;
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addr = iomap(dio_scodetopa(da->da_scode), da->da_size);
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if (addr == 0) {
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printf("\n%s: can't map LANCE registers\n",
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sc->sc_dev.dv_xname);
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return;
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}
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ler0 = lesc->sc_r0 = (struct lereg0 *)(lestd[0] + (int)addr);
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ler0->ler0_id = 0xFF;
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DELAY(100);
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ipl = DIO_IPL(addr);
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printf(" ipl %d", ipl);
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lesc->sc_r1 = (struct lereg1 *)(lestd[1] + (int)addr);
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sc->sc_mem = (void *)(lestd[2] + (int)addr);
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sc->sc_conf3 = LE_C3_BSWP;
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sc->sc_addr = 0;
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sc->sc_memsize = 16384;
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/*
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* Read the ethernet address off the board, one nibble at a time.
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*/
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cp = (char *)(lestd[3] + (int)addr);
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for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++) {
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sc->sc_arpcom.ac_enaddr[i] = (*++cp & 0xF) << 4;
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cp++;
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sc->sc_arpcom.ac_enaddr[i] |= *++cp & 0xF;
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cp++;
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}
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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_rdcsr = lerdcsr;
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sc->sc_wrcsr = lewrcsr;
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sc->sc_hwinit = NULL;
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am7990_config(sc);
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/* Establish the interrupt handler. */
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(void) isrlink(leintr, sc, ipl, ISRPRI_NET);
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ler0->ler0_status = LE_IE;
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}
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int
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leintr(arg)
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void *arg;
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{
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struct am7990_softc *sc = arg;
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u_int16_t isr;
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#ifdef USELEDS
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isr = lerdcsr(sc, LE_CSR0);
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if ((isr & LE_C0_INTR) == 0)
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return (0);
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if (isr & LE_C0_RINT)
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if (inledcontrol == 0)
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ledcontrol(0, 0, LED_LANRCV);
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if (isr & LE_C0_TINT)
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if (inledcontrol == 0)
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ledcontrol(0, 0, LED_LANXMT);
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#endif /* USELEDS */
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return (am7990_intr(sc));
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}
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