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1 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
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2 | #ifndef __SOUND_ASOUND_FM_H |
3 | #define __SOUND_ASOUND_FM_H |
4 | |
5 | /* |
6 | * Advanced Linux Sound Architecture - ALSA |
7 | * |
8 | * Interface file between ALSA driver & user space |
9 | * Copyright (c) 1994-98 by Jaroslav Kysela <perex@perex.cz>, |
10 | * 4Front Technologies |
11 | * |
12 | * Direct FM control |
13 | */ |
14 | |
15 | #define SNDRV_DM_FM_MODE_OPL2 0x00 |
16 | #define SNDRV_DM_FM_MODE_OPL3 0x01 |
17 | |
18 | struct snd_dm_fm_info { |
19 | unsigned char fm_mode; /* OPL mode, see SNDRV_DM_FM_MODE_XXX */ |
20 | unsigned char rhythm; /* percussion mode flag */ |
21 | }; |
22 | |
23 | /* |
24 | * Data structure composing an FM "note" or sound event. |
25 | */ |
26 | |
27 | struct snd_dm_fm_voice { |
28 | unsigned char op; /* operator cell (0 or 1) */ |
29 | unsigned char voice; /* FM voice (0 to 17) */ |
30 | |
31 | unsigned char am; /* amplitude modulation */ |
32 | unsigned char vibrato; /* vibrato effect */ |
33 | unsigned char do_sustain; /* sustain phase */ |
34 | unsigned char kbd_scale; /* keyboard scaling */ |
35 | unsigned char harmonic; /* 4 bits: harmonic and multiplier */ |
36 | unsigned char scale_level; /* 2 bits: decrease output freq rises */ |
37 | unsigned char volume; /* 6 bits: volume */ |
38 | |
39 | unsigned char attack; /* 4 bits: attack rate */ |
40 | unsigned char decay; /* 4 bits: decay rate */ |
41 | unsigned char sustain; /* 4 bits: sustain level */ |
42 | unsigned char release; /* 4 bits: release rate */ |
43 | |
44 | unsigned char feedback; /* 3 bits: feedback for op0 */ |
45 | unsigned char connection; /* 0 for serial, 1 for parallel */ |
46 | unsigned char left; /* stereo left */ |
47 | unsigned char right; /* stereo right */ |
48 | unsigned char waveform; /* 3 bits: waveform shape */ |
49 | }; |
50 | |
51 | /* |
52 | * This describes an FM note by its voice, octave, frequency number (10bit) |
53 | * and key on/off. |
54 | */ |
55 | |
56 | struct snd_dm_fm_note { |
57 | unsigned char voice; /* 0-17 voice channel */ |
58 | unsigned char octave; /* 3 bits: what octave to play */ |
59 | unsigned int fnum; /* 10 bits: frequency number */ |
60 | unsigned char key_on; /* set for active, clear for silent */ |
61 | }; |
62 | |
63 | /* |
64 | * FM parameters that apply globally to all voices, and thus are not "notes" |
65 | */ |
66 | |
67 | struct snd_dm_fm_params { |
68 | unsigned char am_depth; /* amplitude modulation depth (1=hi) */ |
69 | unsigned char vib_depth; /* vibrato depth (1=hi) */ |
70 | unsigned char kbd_split; /* keyboard split */ |
71 | unsigned char rhythm; /* percussion mode select */ |
72 | |
73 | /* This block is the percussion instrument data */ |
74 | unsigned char bass; |
75 | unsigned char snare; |
76 | unsigned char tomtom; |
77 | unsigned char cymbal; |
78 | unsigned char hihat; |
79 | }; |
80 | |
81 | /* |
82 | * FM mode ioctl settings |
83 | */ |
84 | |
85 | #define SNDRV_DM_FM_IOCTL_INFO _IOR('H', 0x20, struct snd_dm_fm_info) |
86 | #define SNDRV_DM_FM_IOCTL_RESET _IO ('H', 0x21) |
87 | #define SNDRV_DM_FM_IOCTL_PLAY_NOTE _IOW('H', 0x22, struct snd_dm_fm_note) |
88 | #define SNDRV_DM_FM_IOCTL_SET_VOICE _IOW('H', 0x23, struct snd_dm_fm_voice) |
89 | #define SNDRV_DM_FM_IOCTL_SET_PARAMS _IOW('H', 0x24, struct snd_dm_fm_params) |
90 | #define SNDRV_DM_FM_IOCTL_SET_MODE _IOW('H', 0x25, int) |
91 | /* for OPL3 only */ |
92 | #define SNDRV_DM_FM_IOCTL_SET_CONNECTION _IOW('H', 0x26, int) |
93 | /* SBI patch management */ |
94 | #define SNDRV_DM_FM_IOCTL_CLEAR_PATCHES _IO ('H', 0x40) |
95 | |
96 | #define SNDRV_DM_FM_OSS_IOCTL_RESET 0x20 |
97 | #define SNDRV_DM_FM_OSS_IOCTL_PLAY_NOTE 0x21 |
98 | #define SNDRV_DM_FM_OSS_IOCTL_SET_VOICE 0x22 |
99 | #define SNDRV_DM_FM_OSS_IOCTL_SET_PARAMS 0x23 |
100 | #define SNDRV_DM_FM_OSS_IOCTL_SET_MODE 0x24 |
101 | #define SNDRV_DM_FM_OSS_IOCTL_SET_OPL 0x25 |
102 | |
103 | /* |
104 | * Patch Record - fixed size for write |
105 | */ |
106 | |
107 | #define FM_KEY_SBI "SBI\032" |
108 | #define FM_KEY_2OP "2OP\032" |
109 | #define FM_KEY_4OP "4OP\032" |
110 | |
111 | struct sbi_patch { |
112 | unsigned char prog; |
113 | unsigned char bank; |
114 | char key[4]; |
115 | char name[25]; |
116 | char extension[7]; |
117 | unsigned char data[32]; |
118 | }; |
119 | |
120 | #endif /* __SOUND_ASOUND_FM_H */ |
121 |
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