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 32struct 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 41struct 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 70struct 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 81struct 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 125struct 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