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135 lines
4.3 KiB
135 lines
4.3 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
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#ifndef __SOUND_ASOUND_FM_H |
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#define __SOUND_ASOUND_FM_H |
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/* |
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* Advanced Linux Sound Architecture - ALSA |
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* |
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* Interface file between ALSA driver & user space |
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* Copyright (c) 1994-98 by Jaroslav Kysela <[email protected]>, |
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* 4Front Technologies |
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* |
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* Direct FM control |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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*/ |
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#define SNDRV_DM_FM_MODE_OPL2 0x00 |
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#define SNDRV_DM_FM_MODE_OPL3 0x01 |
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struct snd_dm_fm_info { |
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unsigned char fm_mode; /* OPL mode, see SNDRV_DM_FM_MODE_XXX */ |
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unsigned char rhythm; /* percussion mode flag */ |
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}; |
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/* |
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* Data structure composing an FM "note" or sound event. |
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*/ |
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struct snd_dm_fm_voice { |
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unsigned char op; /* operator cell (0 or 1) */ |
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unsigned char voice; /* FM voice (0 to 17) */ |
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unsigned char am; /* amplitude modulation */ |
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unsigned char vibrato; /* vibrato effect */ |
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unsigned char do_sustain; /* sustain phase */ |
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unsigned char kbd_scale; /* keyboard scaling */ |
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unsigned char harmonic; /* 4 bits: harmonic and multiplier */ |
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unsigned char scale_level; /* 2 bits: decrease output freq rises */ |
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unsigned char volume; /* 6 bits: volume */ |
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unsigned char attack; /* 4 bits: attack rate */ |
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unsigned char decay; /* 4 bits: decay rate */ |
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unsigned char sustain; /* 4 bits: sustain level */ |
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unsigned char release; /* 4 bits: release rate */ |
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unsigned char feedback; /* 3 bits: feedback for op0 */ |
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unsigned char connection; /* 0 for serial, 1 for parallel */ |
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unsigned char left; /* stereo left */ |
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unsigned char right; /* stereo right */ |
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unsigned char waveform; /* 3 bits: waveform shape */ |
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}; |
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/* |
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* This describes an FM note by its voice, octave, frequency number (10bit) |
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* and key on/off. |
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*/ |
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struct snd_dm_fm_note { |
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unsigned char voice; /* 0-17 voice channel */ |
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unsigned char octave; /* 3 bits: what octave to play */ |
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unsigned int fnum; /* 10 bits: frequency number */ |
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unsigned char key_on; /* set for active, clear for silent */ |
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}; |
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/* |
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* FM parameters that apply globally to all voices, and thus are not "notes" |
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*/ |
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struct snd_dm_fm_params { |
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unsigned char am_depth; /* amplitude modulation depth (1=hi) */ |
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unsigned char vib_depth; /* vibrato depth (1=hi) */ |
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unsigned char kbd_split; /* keyboard split */ |
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unsigned char rhythm; /* percussion mode select */ |
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/* This block is the percussion instrument data */ |
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unsigned char bass; |
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unsigned char snare; |
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unsigned char tomtom; |
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unsigned char cymbal; |
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unsigned char hihat; |
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}; |
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/* |
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* FM mode ioctl settings |
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*/ |
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#define SNDRV_DM_FM_IOCTL_INFO _IOR('H', 0x20, struct snd_dm_fm_info) |
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#define SNDRV_DM_FM_IOCTL_RESET _IO ('H', 0x21) |
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#define SNDRV_DM_FM_IOCTL_PLAY_NOTE _IOW('H', 0x22, struct snd_dm_fm_note) |
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#define SNDRV_DM_FM_IOCTL_SET_VOICE _IOW('H', 0x23, struct snd_dm_fm_voice) |
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#define SNDRV_DM_FM_IOCTL_SET_PARAMS _IOW('H', 0x24, struct snd_dm_fm_params) |
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#define SNDRV_DM_FM_IOCTL_SET_MODE _IOW('H', 0x25, int) |
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/* for OPL3 only */ |
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#define SNDRV_DM_FM_IOCTL_SET_CONNECTION _IOW('H', 0x26, int) |
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/* SBI patch management */ |
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#define SNDRV_DM_FM_IOCTL_CLEAR_PATCHES _IO ('H', 0x40) |
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#define SNDRV_DM_FM_OSS_IOCTL_RESET 0x20 |
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#define SNDRV_DM_FM_OSS_IOCTL_PLAY_NOTE 0x21 |
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#define SNDRV_DM_FM_OSS_IOCTL_SET_VOICE 0x22 |
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#define SNDRV_DM_FM_OSS_IOCTL_SET_PARAMS 0x23 |
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#define SNDRV_DM_FM_OSS_IOCTL_SET_MODE 0x24 |
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#define SNDRV_DM_FM_OSS_IOCTL_SET_OPL 0x25 |
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/* |
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* Patch Record - fixed size for write |
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*/ |
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#define FM_KEY_SBI "SBI\032" |
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#define FM_KEY_2OP "2OP\032" |
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#define FM_KEY_4OP "4OP\032" |
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struct sbi_patch { |
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unsigned char prog; |
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unsigned char bank; |
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char key[4]; |
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char name[25]; |
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char extension[7]; |
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unsigned char data[32]; |
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}; |
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#endif /* __SOUND_ASOUND_FM_H */
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