NetBSD/sys/dev/eisa/depca_eisa.c

191 lines
5.6 KiB
C

/* $NetBSD: depca_eisa.c,v 1.7 2005/02/27 00:26:59 perry Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* 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. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/*
* EISA bus front-end for the Digital DEPCA Ethernet controller.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: depca_eisa.c,v 1.7 2005/02/27 00:26:59 perry Exp $");
#include "opt_inet.h"
#include "bpfilter.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/syslog.h>
#include <sys/socket.h>
#include <sys/device.h>
#include <net/if.h>
#include <net/if_media.h>
#include <net/if_ether.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
#endif
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/eisa/eisareg.h>
#include <dev/eisa/eisavar.h>
#include <dev/eisa/eisadevs.h>
#include <dev/ic/lancereg.h>
#include <dev/ic/lancevar.h>
#include <dev/ic/am7990reg.h>
#include <dev/ic/am7990var.h>
#include <dev/ic/depcareg.h>
#include <dev/ic/depcavar.h>
static int depca_eisa_match(struct device *, struct cfdata *, void *);
static void depca_eisa_attach(struct device *, struct device *, void *);
struct depca_eisa_softc {
struct depca_softc sc_depca;
eisa_chipset_tag_t sc_ec;
int sc_irq;
int sc_ist;
};
CFATTACH_DECL(depca_eisa, sizeof(struct depca_eisa_softc),
depca_eisa_match, depca_eisa_attach, NULL, NULL);
static void *depca_eisa_intr_establish(struct depca_softc *,
struct lance_softc *);
static int
depca_eisa_match(struct device *parent, struct cfdata *match, void *aux)
{
struct eisa_attach_args *ea = aux;
return (strcmp(ea->ea_idstring, "DEC4220") == 0);
}
#define DEPCA_ECU_FUNC_NETINTR 0
#define DEPCA_ECU_FUNC_NETBUF 1
static void
depca_eisa_attach(struct device *parent, struct device *self, void *aux)
{
struct depca_softc *sc = (void *) self;
struct depca_eisa_softc *esc = (void *) self;
struct eisa_attach_args *ea = aux;
struct eisa_cfg_mem ecm;
struct eisa_cfg_irq eci;
printf(": DEC DE422 Ethernet\n");
sc->sc_iot = ea->ea_iot;
sc->sc_memt = ea->ea_memt;
esc->sc_ec = ea->ea_ec;
sc->sc_intr_establish = depca_eisa_intr_establish;
if (eisa_conf_read_mem(ea->ea_ec, ea->ea_slot,
DEPCA_ECU_FUNC_NETBUF, 0, &ecm) != 0) {
printf("%s: unable to find network buffer\n",
sc->sc_dev.dv_xname);
return;
}
printf("%s: shared memory at 0x%lx-0x%lx\n", sc->sc_dev.dv_xname,
ecm.ecm_addr, ecm.ecm_addr + ecm.ecm_size - 1);
sc->sc_memsize = ecm.ecm_size;
if (bus_space_map(sc->sc_iot, EISA_SLOT_ADDR(ea->ea_slot) + 0xc00, 16,
0, &sc->sc_ioh) != 0) {
printf("%s: unable to map i/o space\n", sc->sc_dev.dv_xname);
return;
}
if (bus_space_map(sc->sc_memt, ecm.ecm_addr, sc->sc_memsize,
0, &sc->sc_memh) != 0) {
printf("%s: unable to map memory space\n", sc->sc_dev.dv_xname);
return;
}
if (eisa_conf_read_irq(ea->ea_ec, ea->ea_slot,
DEPCA_ECU_FUNC_NETINTR, 0, &eci) != 0) {
printf("%s: unable to determine IRQ\n",
sc->sc_dev.dv_xname);
return;
}
esc->sc_irq = eci.eci_irq;
esc->sc_ist = eci.eci_ist;
depca_attach(sc);
}
static void *
depca_eisa_intr_establish(struct depca_softc *parent, struct lance_softc *child)
{
struct depca_eisa_softc *esc = (void *) parent;
eisa_intr_handle_t ih;
const char *intrstr;
void *rv;
if (eisa_intr_map(esc->sc_ec, esc->sc_irq, &ih)) {
printf("%s: unable to map interrupt (%d)\n",
parent->sc_dev.dv_xname, esc->sc_irq);
return (NULL);
}
intrstr = eisa_intr_string(esc->sc_ec, ih);
rv = eisa_intr_establish(esc->sc_ec, ih, esc->sc_ist, IPL_NET,
(esc->sc_ist == IST_LEVEL) ? am7990_intr : depca_intredge, child);
if (rv == NULL) {
printf("%s: unable to establish interrupt",
parent->sc_dev.dv_xname);
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return (NULL);
}
if (intrstr != NULL)
printf("%s: interrupting at %s\n", parent->sc_dev.dv_xname,
intrstr);
return (rv);
}