NetBSD/sys/arch/pmax/ibus/ibus.c
jonathan d4a24f85d6 Support shared Decstation 3100 and Decsystem 5100 baseboard devices
using a virtual "ibus" for  baseboard devices.
1998-04-19 02:52:45 +00:00

136 lines
3.9 KiB
C

/* $NetBSD: ibus.c,v 1.1 1998/04/19 02:52:45 jonathan Exp $ */
/*
* Copyright (c) 1998 Jonathan Stone. 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 Jonathan Stone for
* the NetBSD Project.
* 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.
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: ibus.c,v 1.1 1998/04/19 02:52:45 jonathan Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <pmax/ibus/ibusvar.h>
#include <pmax/pmax/pmaxtype.h>
static int ibusmatch __P((struct device *, struct cfdata *, void *));
static void ibusattach __P((struct device *, struct device *, void *));
int ibusprint __P((void *, const char *));
struct ibus_softc {
struct device ibd_dev;
int ibd_ndevs;
struct ibus_attach_args *ibd_devs;
ibus_intr_establish_t (*ibd_establish);
ibus_intr_disestablish_t (*ibd_disestablish);
};
struct cfattach ibus_ca = {
sizeof(struct ibus_softc), ibusmatch, ibusattach
};
extern struct cfdriver ibus_cd;
static int
ibusmatch(parent, cfdata, aux)
struct device *parent;
struct cfdata *cfdata;
void *aux;
{
struct ibus_dev_attach_args *ibd = (struct ibus_dev_attach_args *)aux;
if (strcmp(ibd->ibd_busname, "ibus") != 0) {
return 0;
}
if (systype != DS_PMAX && systype != DS_MIPSMATE && systype != DS_3MAX)
return (0);
return(1);
}
static void
ibusattach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct ibus_softc *sc = (struct ibus_softc *)self;
struct ibus_dev_attach_args* ibd_args = aux;
struct ibus_attach_args *child;
int i;
printf("\n");
sc->ibd_ndevs = ibd_args->ibd_ndevs;
sc->ibd_devs = ibd_args->ibd_devs;
sc->ibd_establish = ibd_args->ibd_establish;
sc->ibd_disestablish = ibd_args->ibd_disestablish;
for (i = 0; i < sc->ibd_ndevs; i++) {
child = &sc->ibd_devs[i];
config_found(self, child, ibusprint);
}
}
int
ibusprint(aux, pnp)
void *aux;
const char *pnp;
{
if (pnp)
return (QUIET);
return (UNCONF);
}
void
ibus_intr_establish(cookie, level, handler, arg)
void * cookie;
int level;
int (*handler) __P((intr_arg_t));
intr_arg_t arg;
{
((struct ibus_softc*)ibus_cd.cd_devs[0])->
ibd_establish(cookie, level, handler, arg);
}
void
ibus_intr_disestablish(ia)
struct ibus_attach_args *ia;
{
((struct ibus_softc*)ibus_cd.cd_devs[0])->ibd_disestablish(ia);
}