NetBSD/sys/arch/luna68k/dev/sio.c

131 lines
4.0 KiB
C

/* $NetBSD: sio.c,v 1.4 2007/03/04 06:00:03 christos Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Tohru Nishimura.
*
* 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.
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: sio.c,v 1.4 2007/03/04 06:00:03 christos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/cpu.h>
#include <machine/autoconf.h>
#include <luna68k/luna68k/isr.h>
#include <luna68k/dev/siovar.h>
static int sio_match __P((struct device *, struct cfdata *, void *));
static void sio_attach __P((struct device *, struct device *, void *));
static int sio_print __P((void *, const char *));
CFATTACH_DECL(sio, sizeof(struct sio_softc),
sio_match, sio_attach, NULL, NULL);
extern struct cfdriver sio_cd;
static void nullintr __P((int));
static int xsiointr __P((void *));
static int
sio_match(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct mainbus_attach_args *ma = aux;
if (strcmp(ma->ma_name, sio_cd.cd_name))
return 0;
if (badaddr((void *)ma->ma_addr, 4))
return 0;
return 1;
}
static void
sio_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct sio_softc *sc = (void *)self;
struct mainbus_attach_args *ma = aux;
struct sio_attach_args sio_args;
int channel;
extern int sysconsole; /* console: 0 for ttya, 1 for desktop */
printf(": 7201a\n");
sc->scp_ctl = (void *)ma->ma_addr;
sc->scp_intr[0] = sc->scp_intr[1] = nullintr;
for (channel = 0; channel < 2; channel++) {
sio_args.channel = channel;
sio_args.hwflags = (channel == sysconsole);
config_found(self, (void *)&sio_args, sio_print);
}
isrlink_autovec(xsiointr, sc, ma->ma_ilvl, ISRPRI_TTYNOBUF);
}
static int
sio_print(aux, name)
void *aux;
const char *name;
{
struct sio_attach_args *args = aux;
if (name != NULL)
aprint_normal("%s: ", name);
if (args->channel != -1)
aprint_normal(" channel %d", args->channel);
return UNCONF;
}
static int
xsiointr(arg)
void *arg;
{
struct sio_softc *sc = arg;
(*sc->scp_intr[0])(0); /* 0: ttya system serial port */
(*sc->scp_intr[1])(1); /* 1: keyboard and mouse */
return 1;
}
static void nullintr(v) int v; { }