NetBSD/sys/arch/sparc/dev/if_en_sbus.c

160 lines
4.0 KiB
C

/* $NetBSD: if_en_sbus.c,v 1.5 1998/03/21 20:14:14 pk Exp $ */
/*
*
* Copyright (c) 1996 Charles D. Cranor and Washington University.
* 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. 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 Charles D. Cranor and
* Washington University.
* 4. 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.
*/
/*
*
* i f _ e n _ s b u s . c
*
* author: Chuck Cranor <chuck@ccrc.wustl.edu>
* started: spring, 1996.
*
* SBUS glue for the eni155s card.
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/device.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <net/if.h>
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <sparc/dev/sbusvar.h>
#include <dev/ic/midwayreg.h>
#include <dev/ic/midwayvar.h>
/*
* local structures
*/
struct en_sbus_softc {
/* bus independent stuff */
struct en_softc esc; /* includes "device" structure */
/* sbus glue */
struct sbusdev sc_sd; /* sbus device */
};
/*
* local defines (SBUS specific stuff)
*/
#define EN_IPL 5
/*
* prototypes
*/
static int en_sbus_match __P((struct device *, void *, void *));
static void en_sbus_attach __P((struct device *, struct device *, void *));
/*
* SBUS autoconfig attachments
*/
struct cfattach en_sbus_ca = {
sizeof(struct en_sbus_softc), en_sbus_match, en_sbus_attach,
};
/***********************************************************************/
/*
* autoconfig stuff
*/
static int
en_sbus_match(parent, match, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct sbus_attach_args *sa = aux;
if (CPU_ISSUN4M) {
#ifdef DEBUG
printf("%s: sun4m DMA not supported yet\n", sa->sa_name);
#endif
return (0);
}
return (strcmp("ENI-155s", sa->sa_name) == 0);
}
static void
en_sbus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct sbus_attach_args *sa = aux;
struct en_softc *sc = (void *)self;
struct en_sbus_softc *scs = (void *)self;
bus_space_handle_t bh;
struct intrhand *ih;
int lcv, iplcode;
printf("\n");
if (sbus_bus_map(sa->sa_bustag, sa->sa_slot,
sa->sa_offset,
4*1024*1024,
0, 0, &bh) != 0) {
printf("%s: cannot map registers\n", self->dv_xname);
return;
}
sc->en_base = (volatile caddr_t)bh;
/* Establish interrupt channel */
ih = bus_intr_establish(sa->sa_bustag,
sa->sa_pri, 0,
en_intr, sc);
sc->ipl = ih->ih_pri; /* used to be this */
/*sc->ipl = sa->sa_pri; -* but this might more appropriate? */
sbus_establish(&scs->sc_sd, &sc->sc_dev);
/*
* done SBUS specific stuff
*/
en_attach(sc);
}