163 lines
4.6 KiB
C
163 lines
4.6 KiB
C
/* $NetBSD: midi_pcppi.c,v 1.26 2012/04/09 10:18:17 plunky Exp $ */
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/*
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* Copyright (c) 1998, 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (augustss@NetBSD.org), and by Andrew Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: midi_pcppi.c,v 1.26 2012/04/09 10:18:17 plunky Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <sys/conf.h>
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#include <sys/select.h>
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#include <sys/audioio.h>
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#include <sys/midiio.h>
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#include <sys/tty.h>
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#include <sys/bus.h>
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#include <dev/isa/pcppivar.h>
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#include <dev/audio_if.h>
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#include <dev/midi_if.h>
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#include <dev/midivar.h>
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#include <dev/midisynvar.h>
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#define MAX_DURATION 30 /* turn off sound automagically after 30 s */
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struct midi_pcppi_softc {
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struct midi_softc sc_mididev;
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midisyn sc_midisyn;
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};
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static int midi_pcppi_match(device_t, cfdata_t , void *);
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static void midi_pcppi_attach(device_t, device_t, void *);
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static int midi_pcppi_detach(device_t, int);
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static void midi_pcppi_on (midisyn *, uint_fast16_t, midipitch_t, int16_t);
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static void midi_pcppi_off (midisyn *, uint_fast16_t, uint_fast8_t);
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static void midi_pcppi_close(midisyn *);
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static void midi_pcppi_repitchv(midisyn *, uint_fast16_t, midipitch_t);
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CFATTACH_DECL3_NEW(midi_pcppi, sizeof(struct midi_pcppi_softc),
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midi_pcppi_match, midi_pcppi_attach, midi_pcppi_detach, NULL, NULL, NULL,
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DVF_DETACH_SHUTDOWN);
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static struct midisyn_methods midi_pcppi_hw = {
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.close = midi_pcppi_close,
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.attackv = midi_pcppi_on,
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.releasev = midi_pcppi_off,
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.repitchv = midi_pcppi_repitchv,
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};
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int midi_pcppi_attached = 0; /* Not very nice */
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static int
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midi_pcppi_match(device_t parent, cfdata_t match, void *aux)
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{
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return (!midi_pcppi_attached);
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}
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static void
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midi_pcppi_attach(device_t parent, device_t self, void *aux)
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{
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struct midi_pcppi_softc *sc = device_private(self);
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struct pcppi_attach_args *pa = (struct pcppi_attach_args *)aux;
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midisyn *ms;
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midi_pcppi_attached++;
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ms = &sc->sc_midisyn;
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ms->mets = &midi_pcppi_hw;
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strcpy(ms->name, "PC speaker");
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ms->nvoice = 1;
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ms->data = pa->pa_cookie;
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ms->lock = &tty_lock;
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midisyn_init(ms);
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sc->sc_mididev.dev = self;
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sc->sc_mididev.hw_if = &midisyn_hw_if;
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sc->sc_mididev.hw_hdl = ms;
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midi_attach(&sc->sc_mididev);
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}
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static int
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midi_pcppi_detach(device_t self, int flags)
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{
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KASSERT(midi_pcppi_attached > 0);
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midi_pcppi_attached--;
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return mididetach(self, flags);
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}
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static void
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midi_pcppi_on(midisyn *ms,
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uint_fast16_t voice, midipitch_t mp, int16_t level)
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{
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pcppi_tag_t t = ms->data;
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KASSERT(mutex_owned(&tty_lock));
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pcppi_bell_locked(t, MIDIHZ18_TO_HZ(MIDIPITCH_TO_HZ18(mp)),
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MAX_DURATION * hz, 0);
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}
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static void
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midi_pcppi_off(midisyn *ms, uint_fast16_t voice, uint_fast8_t vel)
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{
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pcppi_tag_t t = ms->data;
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KASSERT(mutex_owned(&tty_lock));
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/*printf("OFF %p %d\n", t, note >> 16);*/
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pcppi_bell_locked(t, 0, 0, 0);
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}
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static void
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midi_pcppi_close(midisyn *ms)
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{
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pcppi_tag_t t = ms->data;
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KASSERT(mutex_owned(&tty_lock));
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/* Make sure we are quiet. */
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pcppi_bell_locked(t, 0, 0, 0);
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}
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static void
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midi_pcppi_repitchv(midisyn *ms, uint_fast16_t voice, midipitch_t newpitch)
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{
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KASSERT(mutex_owned(&tty_lock));
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midi_pcppi_on(ms, voice, newpitch, 64);
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}
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