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@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