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/* $OpenBSD: if_lc_isa.c,v 1.9 2011/06/20 01:09:25 matthew Exp $ */
/* $NetBSD: if_lc_isa.c,v 1.10 2001/06/13 10:46:03 wiz Exp $ */
/*-
* Copyright (c) 1994, 1995, 1997 Matt Thomas <matt@3am-software.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* DEC EtherWORKS 3 Ethernet Controllers
*
* Written by Matt Thomas
*
* This driver supports the LEMAC (DE203, DE204, and DE205) cards.
*/
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/syslog.h>
#include <sys/selinfo.h>
#include <sys/device.h>
#include <sys/queue.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#endif
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#include <machine/cpu.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/ic/lemacreg.h>
#include <dev/ic/lemacvar.h>
#include <dev/isa/isavar.h>
extern struct cfdriver lc_cd;
int lemac_isa_find(struct lemac_softc *, struct isa_attach_args *,
int);
int lemac_isa_probe(struct device *, void *, void *);
void lemac_isa_attach(struct device *, struct device *, void *);
struct cfattach lc_isa_ca = {
sizeof(struct lemac_softc), lemac_isa_probe, lemac_isa_attach
};
int
lemac_isa_find(sc, ia, attach)
struct lemac_softc *sc;
struct isa_attach_args *ia;
int attach;
{
bus_addr_t maddr;
bus_size_t msize;
int rv = 0, irq;
/*
* Disallow wildcarded i/o addresses.
*/
if (ia->ia_iobase == IOBASEUNK)
return 0;
/*
* Make sure this is a valid LEMAC address.
*/
if (ia->ia_iobase & (LEMAC_IOSIZE - 1))
return 0;
sc->sc_iot = ia->ia_iot;
/*
* Map the LEMAC's port space for the probe sequence.
*/
ia->ia_iosize = LEMAC_IOSIZE;
if (bus_space_map(sc->sc_iot, ia->ia_iobase, ia->ia_iosize, 0,
&sc->sc_ioh)) {
if (attach)
printf(": can't map i/o space\n");
return (0);
}
/*
* Read the Ethernet address from the EEPROM.
* It must start with one of the DEC OUIs and pass the
* DEC ethernet checksum test.
*/
if (lemac_port_check(sc->sc_iot, sc->sc_ioh) == 0)
goto outio;
/*
* Get information about memory space and attempt to map it.
*/
lemac_info_get(sc->sc_iot, sc->sc_ioh, &maddr, &msize, &irq);
if (ia->ia_maddr != maddr && ia->ia_maddr != MADDRUNK)
goto outio;
if (maddr != 0 && msize != 0) {
sc->sc_memt = ia->ia_memt;
if (bus_space_map(ia->ia_memt, maddr, msize, 0,
&sc->sc_memh)) {
if (attach)
printf(": can't map mem space\n");
goto outio;
}
}
/*
* Double-check IRQ configuration.
*/
if (ia->ia_irq != irq && ia->ia_irq != IRQUNK)
printf("%s: overriding IRQ %d to %d\n", sc->sc_dv.dv_xname,
ia->ia_irq, irq);
if (attach) {
lemac_ifattach(sc);
sc->sc_ih = isa_intr_establish(ia->ia_ic, irq, IST_EDGE,
IPL_NET, lemac_intr, sc, sc->sc_dv.dv_xname);
}
/*
* I guess we've found one.
*/
rv = 1;
ia->ia_maddr = maddr;
ia->ia_msize = msize;
ia->ia_irq = irq;
if (maddr != 0 && msize != 0 && (rv == 0 || !attach))
bus_space_unmap(sc->sc_memt, sc->sc_memh, msize);
outio:
if (rv == 0 || !attach)
bus_space_unmap(sc->sc_iot, sc->sc_ioh, LEMAC_IOSIZE);
return (rv);
}
int
lemac_isa_probe(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
struct isa_attach_args *ia = aux;
struct cfdata *cf = ((struct device *)match)->dv_cfdata;
struct lemac_softc sc;
snprintf(sc.sc_dv.dv_xname, sizeof sc.sc_dv.dv_xname, "%s%d",
lc_cd.cd_name, cf->cf_unit);
return (lemac_isa_find(&sc, ia, 0));
}
void
lemac_isa_attach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct lemac_softc *sc = (void *)self;
struct isa_attach_args *ia = aux;
lemac_isa_find(sc, ia, 1);
}
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