1 files changed, 115 insertions, 0 deletions

diff --git a/include/sound/asound_fm.h b/include/sound/asound_fm.h
new file mode 100644
index 000000000000..b0da677f8f75
--- /dev/null
+++ b/include/sound/asound_fm.h
@@ -0,0 +1,115 @@
+#ifndef __SOUND_ASOUND_FM_H
+#define __SOUND_ASOUND_FM_H
+
+/*
+ *  Advanced Linux Sound Architecture - ALSA
+ *
+ *  Interface file between ALSA driver & user space
+ *  Copyright (c) 1994-98 by Jaroslav Kysela <perex@suse.cz>,
+ *                           4Front Technologies
+ *
+ *  Direct FM control
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#define SNDRV_DM_FM_MODE_OPL2   0x00
+#define SNDRV_DM_FM_MODE_OPL3   0x01
+
+typedef struct snd_dm_fm_info {
+        unsigned char fm_mode;          /* OPL mode, see SNDRV_DM_FM_MODE_XXX */
+        unsigned char rhythm;           /* percussion mode flag */
+} snd_dm_fm_info_t;
+
+/*
+ *  Data structure composing an FM "note" or sound event.
+ */
+
+typedef struct snd_dm_fm_voice {
+        unsigned char op;               /* operator cell (0 or 1) */
+        unsigned char voice;            /* FM voice (0 to 17) */
+
+        unsigned char am;               /* amplitude modulation */
+        unsigned char vibrato;          /* vibrato effect */
+        unsigned char do_sustain;       /* sustain phase */
+        unsigned char kbd_scale;        /* keyboard scaling */
+        unsigned char harmonic;         /* 4 bits: harmonic and multiplier */
+        unsigned char scale_level;      /* 2 bits: decrease output freq rises */
+        unsigned char volume;           /* 6 bits: volume */
+
+        unsigned char attack;           /* 4 bits: attack rate */
+        unsigned char decay;            /* 4 bits: decay rate */
+        unsigned char sustain;          /* 4 bits: sustain level */
+        unsigned char release;          /* 4 bits: release rate */
+
+        unsigned char feedback;         /* 3 bits: feedback for op0 */
+        unsigned char connection;       /* 0 for serial, 1 for parallel */
+        unsigned char left;             /* stereo left */
+        unsigned char right;            /* stereo right */
+        unsigned char waveform;         /* 3 bits: waveform shape */
+} snd_dm_fm_voice_t;
+
+/*
+ *  This describes an FM note by its voice, octave, frequency number (10bit)
+ *  and key on/off.
+ */
+
+typedef struct snd_dm_fm_note {
+        unsigned char voice;    /* 0-17 voice channel */
+        unsigned char octave;   /* 3 bits: what octave to play */
+        unsigned int fnum;      /* 10 bits: frequency number */
+        unsigned char key_on;   /* set for active, clear for silent */
+} snd_dm_fm_note_t;
+
+/*
+ *  FM parameters that apply globally to all voices, and thus are not "notes"
+ */
+
+typedef struct snd_dm_fm_params {
+        unsigned char am_depth;         /* amplitude modulation depth (1=hi) */
+        unsigned char vib_depth;        /* vibrato depth (1=hi) */
+        unsigned char kbd_split;        /* keyboard split */
+        unsigned char rhythm;           /* percussion mode select */
+
+        /* This block is the percussion instrument data */
+        unsigned char bass;
+        unsigned char snare;
+        unsigned char tomtom;
+        unsigned char cymbal;
+        unsigned char hihat;
+} snd_dm_fm_params_t;
+
+/*
+ *  FM mode ioctl settings
+ */
+
+#define SNDRV_DM_FM_IOCTL_INFO          _IOR('H', 0x20, snd_dm_fm_info_t)
+#define SNDRV_DM_FM_IOCTL_RESET         _IO ('H', 0x21)
+#define SNDRV_DM_FM_IOCTL_PLAY_NOTE     _IOW('H', 0x22, snd_dm_fm_note_t)
+#define SNDRV_DM_FM_IOCTL_SET_VOICE     _IOW('H', 0x23, snd_dm_fm_voice_t)
+#define SNDRV_DM_FM_IOCTL_SET_PARAMS    _IOW('H', 0x24, snd_dm_fm_params_t)
+#define SNDRV_DM_FM_IOCTL_SET_MODE      _IOW('H', 0x25, int)
+/* for OPL3 only */
+#define SNDRV_DM_FM_IOCTL_SET_CONNECTION        _IOW('H', 0x26, int)
+
+#define SNDRV_DM_FM_OSS_IOCTL_RESET             0x20
+#define SNDRV_DM_FM_OSS_IOCTL_PLAY_NOTE         0x21
+#define SNDRV_DM_FM_OSS_IOCTL_SET_VOICE         0x22
+#define SNDRV_DM_FM_OSS_IOCTL_SET_PARAMS        0x23
+#define SNDRV_DM_FM_OSS_IOCTL_SET_MODE          0x24
+#define SNDRV_DM_FM_OSS_IOCTL_SET_OPL           0x25
+
+#endif /* __SOUND_ASOUND_FM_H */