NetBSD/sys/dev/isa/mpu_isa.c

115 lines
3.6 KiB
C

/* $NetBSD: mpu_isa.c,v 1.4 1999/08/05 11:25:47 augustss Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson.
*
* 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/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/midiio.h>
#include <machine/bus.h>
#include <dev/midi_if.h>
#include <dev/isa/isavar.h>
#include <dev/ic/mpuvar.h>
struct mpu_isa_softc {
struct mpu_softc sc_mpu; /* generic part */
void *sc_ih; /* ISA interrupt handler */
};
int mpu_isa_match __P((struct device *, struct cfdata *, void *));
void mpu_isa_attach __P((struct device *, struct device *, void *));
struct cfattach mpu_isa_ca = {
sizeof (struct mpu_isa_softc), mpu_isa_match, mpu_isa_attach
};
int
mpu_isa_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct isa_attach_args *ia = aux;
struct mpu_isa_softc sc;
int r;
memset(&sc, 0, sizeof sc);
sc.sc_mpu.iot = ia->ia_iot;
if (bus_space_map(sc.sc_mpu.iot, ia->ia_iobase, MPU401_NPORT, 0,
&sc.sc_mpu.ioh))
return (0);
r = mpu_find(&sc.sc_mpu);
bus_space_unmap(sc.sc_mpu.iot, sc.sc_mpu.ioh, MPU401_NPORT);
if (r) {
ia->ia_iosize = MPU401_NPORT;
ia->ia_msize = 0;
}
return (r);
}
void
mpu_isa_attach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct mpu_isa_softc *sc = (struct mpu_isa_softc *)self;
struct isa_attach_args *ia = aux;
printf("\n");
if (bus_space_map(sc->sc_mpu.iot, ia->ia_iobase, MPU401_NPORT, 0,
&sc->sc_mpu.ioh)) {
printf("mpu_isa_attach: bus_space_map failed\n");
return;
}
sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, IPL_AUDIO,
mpu_intr, sc);
sc->sc_mpu.model = "Roland MPU-401 MIDI UART";
mpu_attach(&sc->sc_mpu);
}