215 lines
5.1 KiB
C
215 lines
5.1 KiB
C
/* $NetBSD: if_lc_isa.c,v 1.9 1998/07/05 06:49:13 jonathan Exp $ */
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/*-
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* Copyright (c) 1994, 1995, 1997 Matt Thomas <matt@3am-software.com>
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* 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. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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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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* DEC EtherWORKS 3 Ethernet Controllers
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*
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* Written by Matt Thomas
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*
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* This driver supports the LEMAC (DE203, DE204, and DE205) cards.
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*/
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#include "opt_inet.h"
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#include "opt_ns.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/ioctl.h>
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#include <sys/errno.h>
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#include <sys/syslog.h>
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#include <sys/select.h>
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#include <sys/device.h>
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#include <sys/queue.h>
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#include <net/if.h>
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#include <net/if_dl.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/in_systm.h>
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#include <netinet/in_var.h>
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#include <netinet/ip.h>
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#include <netinet/if_inarp.h>
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#endif
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#ifdef NS
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#include <netns/ns.h>
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#include <netns/ns_if.h>
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#endif
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#if NBPFILTER > 0
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#include <net/bpf.h>
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#include <net/bpfdesc.h>
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#endif
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#include <machine/cpu.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/ic/lemacreg.h>
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#include <dev/ic/lemacvar.h>
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#include <dev/isa/isavar.h>
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extern struct cfdriver lc_cd;
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static int lemac_isa_find __P((lemac_softc_t *, struct isa_attach_args *,
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int));
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static int lemac_isa_probe __P((struct device *, struct cfdata *, void *));
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static void lemac_isa_attach __P((struct device *, struct device *, void *));
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struct cfattach lc_isa_ca = {
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sizeof(lemac_softc_t), lemac_isa_probe, lemac_isa_attach
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};
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static int
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lemac_isa_find(sc, ia, attach)
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lemac_softc_t *sc;
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struct isa_attach_args *ia;
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int attach;
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{
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bus_addr_t maddr;
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bus_addr_t msize;
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int rv = 0, irq;
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/*
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* Disallow wildcarded i/o addresses.
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*/
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if (ia->ia_iobase == IOBASEUNK)
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return 0;
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/*
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* Make sure this is a valid LEMAC address.
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*/
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if (ia->ia_iobase & (LEMAC_IOSIZE - 1))
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return 0;
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sc->sc_iot = ia->ia_iot;
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/*
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* Map the LEMAC's port space for the probe sequence.
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*/
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ia->ia_iosize = LEMAC_IOSIZE;
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if (bus_space_map(sc->sc_iot, ia->ia_iobase, ia->ia_iosize, 0,
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&sc->sc_ioh)) {
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if (attach)
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printf(": can't map i/o space\n");
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return 0;
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}
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/*
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* Read the Ethernet address from the EEPROM.
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* It must start with one of the DEC OUIs and pass the
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* DEC ethernet checksum test.
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*/
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if (lemac_port_check(sc->sc_iot, sc->sc_ioh) == 0)
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goto outio;
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/*
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* Get information about memory space and attempt to map it.
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*/
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lemac_info_get(sc->sc_iot, sc->sc_ioh, &maddr, &msize, &irq);
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if (ia->ia_maddr != maddr && ia->ia_maddr != MADDRUNK)
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goto outio;
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sc->sc_memt = ia->ia_memt;
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if (bus_space_map(ia->ia_memt, maddr, msize, 0, &sc->sc_memh)) {
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if (attach)
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printf(": can't map mem space\n");
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goto outio;
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}
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/*
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* Double-check IRQ configuration.
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*/
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if (ia->ia_irq != irq && ia->ia_irq != IRQUNK)
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printf("%s: overriding IRQ %d to %d\n", sc->sc_dv.dv_xname,
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ia->ia_irq, irq);
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if (attach) {
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sc->sc_ats = shutdownhook_establish(lemac_shutdown, sc);
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if (sc->sc_ats == NULL)
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printf("\n%s: warning: can't establish shutdown hook\n",
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sc->sc_dv.dv_xname);
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lemac_ifattach(sc);
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sc->sc_ih = isa_intr_establish(ia->ia_ic, irq, IST_EDGE,
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IPL_NET, lemac_intr, sc);
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}
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/*
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* I guess we've found one.
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*/
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rv = 1;
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ia->ia_maddr = maddr;
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ia->ia_msize = msize;
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ia->ia_irq = irq;
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if (rv == 0 || !attach)
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bus_space_unmap(sc->sc_memt, sc->sc_memh, msize);
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outio:
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if (rv == 0 || !attach)
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bus_space_unmap(sc->sc_iot, sc->sc_ioh, LEMAC_IOSIZE);
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return rv;
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}
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static int
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lemac_isa_probe(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 isa_attach_args *ia = aux;
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struct cfdata *cf = match;
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lemac_softc_t sc;
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(void)sprintf(sc.sc_dv.dv_xname, "%s%d", lc_cd.cd_name, cf->cf_unit);
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return lemac_isa_find(&sc, ia, 0);
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}
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static void
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lemac_isa_attach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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lemac_softc_t *sc = (void *)self;
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struct isa_attach_args *ia = aux;
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(void) lemac_isa_find(sc, ia, 1);
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}
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