FreeBSD/Linux Kernel Cross Reference
sys/dev/isa/midi_pcppi.c

     /*      $NetBSD: midi_pcppi.c,v 1.9 2003/12/04 13:57:30 keihan Exp $    */
     
     /*
      * Copyright (c) 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Lennart Augustsson (augustss@NetBSD.org).
      *
     * 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>
    __KERNEL_RCSID(0, "$NetBSD: midi_pcppi.c,v 1.9 2003/12/04 13:57:30 keihan Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/errno.h>
    #include <sys/device.h>
    #include <sys/malloc.h>
    #include <sys/proc.h>
    #include <sys/conf.h>
    #include <sys/select.h>
    #include <sys/audioio.h>
    #include <sys/midiio.h>
    
    #include <dev/isa/pcppivar.h>
    
    #include <dev/audio_if.h>
    #include <dev/midi_if.h>
    #include <dev/midivar.h>
    #include <dev/midisynvar.h>
    
    #define MAX_DURATION 30         /* turn off sound automagically after 30 s */
    
    struct midi_pcppi_softc {
            struct midi_softc sc_mididev;
            midisyn sc_midisyn;
    };
    
    int     midi_pcppi_match __P((struct device *, struct cfdata *, void *));
    void    midi_pcppi_attach __P((struct device *, struct device *, void *));
    
    void    midi_pcppi_on    __P((midisyn *, u_int32_t, u_int32_t, u_int32_t));
    void    midi_pcppi_off   __P((midisyn *, u_int32_t, u_int32_t, u_int32_t));
    void    midi_pcppi_close __P((midisyn *));
    
    CFATTACH_DECL(midi_pcppi, sizeof(struct midi_pcppi_softc),
        midi_pcppi_match, midi_pcppi_attach, NULL, NULL);
    
    struct midisyn_methods midi_pcppi_hw = {
            0,                      /* open */
            midi_pcppi_close,
            0,                      /* ioctl */
            0,                      /* allocv */
            midi_pcppi_on,
            midi_pcppi_off,
            0,
            0,
            0,
            0,
            0,
            0,
    };
    
    int midi_pcppi_attached = 0;    /* Not very nice */
    
    int
    midi_pcppi_match(parent, match, aux)
            struct device *parent;
            struct cfdata *match;
            void *aux;
   {
           return (!midi_pcppi_attached);
   }
   
   void
   midi_pcppi_attach(parent, self, aux)
           struct device *parent;
           struct device *self;
           void *aux;
   {
           struct midi_pcppi_softc *sc = (struct midi_pcppi_softc *)self;
           struct pcppi_attach_args *pa = (struct pcppi_attach_args *)aux;
           midisyn *ms;
   
           ms = &sc->sc_midisyn;
           ms->mets = &midi_pcppi_hw;
           strcpy(ms->name, "PC speaker");
           ms->nvoice = 1;
           ms->flags = MS_DOALLOC | MS_FREQXLATE;
           ms->data = pa->pa_cookie;
   
           midi_pcppi_attached++;
   
           midisyn_attach(&sc->sc_mididev, ms);
           midi_attach(&sc->sc_mididev, parent);
   }
   
   void
   midi_pcppi_on(ms, chan, note, vel)
           midisyn *ms;
           u_int32_t chan, note, vel;
   {
           pcppi_tag_t t = ms->data;
   
           /*printf("ON  %p %d\n", t, MIDISYN_FREQ_TO_HZ(note));*/
           pcppi_bell(t, MIDISYN_FREQ_TO_HZ(note), MAX_DURATION * hz, 0);
   }
   
   void
   midi_pcppi_off(ms, chan, note, vel)
           midisyn *ms;
           u_int32_t chan, note, vel;
   {
           pcppi_tag_t t = ms->data;
   
           /*printf("OFF %p %d\n", t, note >> 16);*/
           pcppi_bell(t, 0, 0, 0);
   }
   
   void
   midi_pcppi_close(ms)
           midisyn *ms;
   {
           pcppi_tag_t t = ms->data;
   
           /* Make sure we are quiet. */
           pcppi_bell(t, 0, 0, 0);
   }

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