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1 | #ifndef __SOUND_ASOUND_FM_H |
2 | #define __SOUND_ASOUND_FM_H |
3 | |
4 | /* |
5 | * Advanced Linux Sound Architecture - ALSA |
6 | * |
7 | * Interface file between ALSA driver & user space |
8 | * Copyright (c) 1994-98 by Jaroslav Kysela <perex@perex.cz>, |
9 | * 4Front Technologies |
10 | * |
11 | * Direct FM control |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify |
14 | * it under the terms of the GNU General Public License as published by |
15 | * the Free Software Foundation; either version 2 of the License, or |
16 | * (at your option) any later version. |
17 | * |
18 | * This program is distributed in the hope that it will be useful, |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
21 | * GNU General Public License for more details. |
22 | * |
23 | * You should have received a copy of the GNU General Public License |
24 | * along with this program; if not, write to the Free Software |
25 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
26 | * |
27 | */ |
28 | |
29 | #define SNDRV_DM_FM_MODE_OPL2 0x00 |
30 | #define SNDRV_DM_FM_MODE_OPL3 0x01 |
31 | |
32 | struct snd_dm_fm_info { |
33 | unsigned char fm_mode; /* OPL mode, see SNDRV_DM_FM_MODE_XXX */ |
34 | unsigned char rhythm; /* percussion mode flag */ |
35 | }; |
36 | |
37 | /* |
38 | * Data structure composing an FM "note" or sound event. |
39 | */ |
40 | |
41 | struct snd_dm_fm_voice { |
42 | unsigned char op; /* operator cell (0 or 1) */ |
43 | unsigned char voice; /* FM voice (0 to 17) */ |
44 | |
45 | unsigned char am; /* amplitude modulation */ |
46 | unsigned char vibrato; /* vibrato effect */ |
47 | unsigned char do_sustain; /* sustain phase */ |
48 | unsigned char kbd_scale; /* keyboard scaling */ |
49 | unsigned char harmonic; /* 4 bits: harmonic and multiplier */ |
50 | unsigned char scale_level; /* 2 bits: decrease output freq rises */ |
51 | unsigned char volume; /* 6 bits: volume */ |
52 | |
53 | unsigned char attack; /* 4 bits: attack rate */ |
54 | unsigned char decay; /* 4 bits: decay rate */ |
55 | unsigned char sustain; /* 4 bits: sustain level */ |
56 | unsigned char release; /* 4 bits: release rate */ |
57 | |
58 | unsigned char feedback; /* 3 bits: feedback for op0 */ |
59 | unsigned char connection; /* 0 for serial, 1 for parallel */ |
60 | unsigned char left; /* stereo left */ |
61 | unsigned char right; /* stereo right */ |
62 | unsigned char waveform; /* 3 bits: waveform shape */ |
63 | }; |
64 | |
65 | /* |
66 | * This describes an FM note by its voice, octave, frequency number (10bit) |
67 | * and key on/off. |
68 | */ |
69 | |
70 | struct snd_dm_fm_note { |
71 | unsigned char voice; /* 0-17 voice channel */ |
72 | unsigned char octave; /* 3 bits: what octave to play */ |
73 | unsigned int fnum; /* 10 bits: frequency number */ |
74 | unsigned char key_on; /* set for active, clear for silent */ |
75 | }; |
76 | |
77 | /* |
78 | * FM parameters that apply globally to all voices, and thus are not "notes" |
79 | */ |
80 | |
81 | struct snd_dm_fm_params { |
82 | unsigned char am_depth; /* amplitude modulation depth (1=hi) */ |
83 | unsigned char vib_depth; /* vibrato depth (1=hi) */ |
84 | unsigned char kbd_split; /* keyboard split */ |
85 | unsigned char rhythm; /* percussion mode select */ |
86 | |
87 | /* This block is the percussion instrument data */ |
88 | unsigned char bass; |
89 | unsigned char snare; |
90 | unsigned char tomtom; |
91 | unsigned char cymbal; |
92 | unsigned char hihat; |
93 | }; |
94 | |
95 | /* |
96 | * FM mode ioctl settings |
97 | */ |
98 | |
99 | #define SNDRV_DM_FM_IOCTL_INFO _IOR('H', 0x20, struct snd_dm_fm_info) |
100 | #define SNDRV_DM_FM_IOCTL_RESET _IO ('H', 0x21) |
101 | #define SNDRV_DM_FM_IOCTL_PLAY_NOTE _IOW('H', 0x22, struct snd_dm_fm_note) |
102 | #define SNDRV_DM_FM_IOCTL_SET_VOICE _IOW('H', 0x23, struct snd_dm_fm_voice) |
103 | #define SNDRV_DM_FM_IOCTL_SET_PARAMS _IOW('H', 0x24, struct snd_dm_fm_params) |
104 | #define SNDRV_DM_FM_IOCTL_SET_MODE _IOW('H', 0x25, int) |
105 | /* for OPL3 only */ |
106 | #define SNDRV_DM_FM_IOCTL_SET_CONNECTION _IOW('H', 0x26, int) |
107 | /* SBI patch management */ |
108 | #define SNDRV_DM_FM_IOCTL_CLEAR_PATCHES _IO ('H', 0x40) |
109 | |
110 | #define SNDRV_DM_FM_OSS_IOCTL_RESET 0x20 |
111 | #define SNDRV_DM_FM_OSS_IOCTL_PLAY_NOTE 0x21 |
112 | #define SNDRV_DM_FM_OSS_IOCTL_SET_VOICE 0x22 |
113 | #define SNDRV_DM_FM_OSS_IOCTL_SET_PARAMS 0x23 |
114 | #define SNDRV_DM_FM_OSS_IOCTL_SET_MODE 0x24 |
115 | #define SNDRV_DM_FM_OSS_IOCTL_SET_OPL 0x25 |
116 | |
117 | /* |
118 | * Patch Record - fixed size for write |
119 | */ |
120 | |
121 | #define FM_KEY_SBI "SBI\032" |
122 | #define FM_KEY_2OP "2OP\032" |
123 | #define FM_KEY_4OP "4OP\032" |
124 | |
125 | struct sbi_patch { |
126 | unsigned char prog; |
127 | unsigned char bank; |
128 | char key[4]; |
129 | char name[25]; |
130 | char extension[7]; |
131 | unsigned char data[32]; |
132 | }; |
133 | |
134 | #endif /* __SOUND_ASOUND_FM_H */ |
135 |
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