FreeBSD/Linux Kernel Cross Reference
sys/dev/midisynvar.h

     /*      $NetBSD: midisynvar.h,v 1.7 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.
     */
    
    #ifndef _SYS_DEV_MIDISYNVAR_H_
    #define _SYS_DEV_MIDISYNVAR_H_
    
    typedef struct midisyn midisyn;
    
    struct midisyn_methods {
            int  (*open)    (midisyn *, int);
            void (*close)   (midisyn *);
            int  (*ioctl)   (midisyn *, u_long, caddr_t, int, struct proc *);
            int  (*allocv)  (midisyn *, u_int32_t, u_int32_t);
            void (*noteon)  (midisyn *, u_int32_t, u_int32_t, u_int32_t);
            void (*noteoff) (midisyn *, u_int32_t, u_int32_t, u_int32_t);
            void (*keypres) (midisyn *, u_int32_t, u_int32_t, u_int32_t);
            void (*ctlchg)  (midisyn *, u_int32_t, u_int32_t, u_int32_t);
            void (*pgmchg)  (midisyn *, u_int32_t, u_int32_t);
            void (*chnpres) (midisyn *, u_int32_t, u_int32_t);
            void (*pitchb)  (midisyn *, u_int32_t, u_int32_t, u_int32_t);
            void (*sysex)   (midisyn *, u_int32_t);
    };
    
    struct voice {
            u_int chan_note;        /* channel and note */
    #define MS_CHANNOTE(chan, note) ((chan) * 256 + (note))
    #define MS_GETCHAN(v) ((v)->chan_note >> 8)
            u_int seqno;            /* allocation index (increases with time) */
            u_char inuse;
    };
    
    #define MIDI_MAX_CHANS 16
    
    struct midisyn {
            /* Filled by synth driver */
            struct midisyn_methods *mets;
            char name[32];
            int nvoice;
            int flags;
    #define MS_DOALLOC      1
    #define MS_FREQXLATE    2
            void *data;
    
            /* Used by midisyn driver */
            u_int8_t buf[3];
            int pos;
            struct voice *voices;
            u_int seqno;
            u_int16_t pgms[MIDI_MAX_CHANS];
    };
    
    #define MS_GETPGM(ms, vno) ((ms)->pgms[MS_GETCHAN(&(ms)->voices[vno])])
    
    struct midi_softc;
    
    extern struct midi_hw_if midisyn_hw_if;
    
    void    midisyn_attach (struct midi_softc *, midisyn *);
    
    #define MIDISYN_FREQ_TO_HZ(f) ((f) >> 16)
    
    #endif /* _SYS_DEV_MIDISYNVAR_H_ */

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