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      1 /*	$NetBSD: oplvar.h,v 1.17 2012/04/09 10:18:16 plunky Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998, 2008 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Lennart Augustsson (augustss (at) NetBSD.org).
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <dev/midivar.h>
     33 #include <dev/midisynvar.h>
     34 
     35 struct opl_voice {
     36 	int voiceno;
     37 	int iooffs;
     38 	u_int8_t op[4];
     39 	const struct opl_operators *patch;
     40 	u_int8_t rB0;
     41 };
     42 
     43 struct opl_softc {
     44 	device_t dev;
     45 	bus_space_tag_t iot;
     46 	bus_space_handle_t ioh;
     47 	kmutex_t *lock;
     48 	int	offs;
     49 	int	model;
     50 #define OPL_2 2
     51 #define OPL_3 3
     52 	struct	midisyn syn;
     53 	device_t sc_mididev;
     54 
     55 	struct opl_voice voices[OPL3_NVOICE];
     56 	u_int8_t pan[MIDI_MAX_CHANS];
     57 	u_int8_t panl, panr;
     58 
     59 	int	(*spkrctl)(void *, int);
     60 	void	*spkrarg;
     61 
     62 #ifndef AUDIO_NO_POWER_CTL
     63 	int	(*powerctl)(void *, int);
     64 	void	*powerarg;
     65 #endif
     66 };
     67 
     68 /* for panpot */
     69 #define OPL_MIDI_CENTER_MIN	(64 - 20)
     70 #define OPL_MIDI_CENTER_MAX	(64 + 20)
     71 
     72 /* config flags */
     73 #define OPL_FLAGS_SWAP_LR	0x0001	/* swap L and R channels */
     74 
     75 struct opl_attach_arg {
     76 	bus_space_tag_t iot;
     77 	bus_space_handle_t ioh;
     78 	int offs;
     79 	int done;
     80 };
     81 
     82 struct opl_operators {
     83 	u_int8_t opl3;
     84 	u_int8_t ops[22];
     85 #define OO_CHARS	0
     86 #define OO_KSL_LEV	2
     87 #define OO_ATT_DEC	4
     88 #define OO_SUS_REL	6
     89 #define OO_WAV_SEL	8
     90 #define OO_FB_CONN	10
     91 #define OO_4OP_OFFS	11
     92 };
     93 
     94 #define OPL_NINSTR 256
     95 
     96 #ifdef _KERNEL
     97 extern const struct opl_operators opl2_instrs[];
     98 extern const struct opl_operators opl3_instrs[];
     99 
    100 int	opl_find(struct opl_softc *);
    101 int	opl_match(bus_space_tag_t, bus_space_handle_t, int);
    102 void	opl_attach(struct opl_softc *);
    103 int	opl_detach(struct opl_softc *, int);
    104 #endif
    105