include/sound/emux_synth.h

   1 #ifndef __SOUND_EMUX_SYNTH_H
   2 #define __SOUND_EMUX_SYNTH_H
   3
   4 /*
   5  *  Defines for the Emu-series WaveTable chip
   6  *
   7  *  Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
   8  *
   9  *   This program is free software; you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License as published by
  11  *   the Free Software Foundation; either version 2 of the License, or
  12  *   (at your option) any later version.
  13  *
  14  *   This program is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *   GNU General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU General Public License
  20  *   along with this program; if not, write to the Free Software
  21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  22  */
  23
  24 #include "seq_kernel.h"
  25 #include "seq_device.h"
  26 #include "soundfont.h"
  27 #include "seq_midi_emul.h"
  28 #ifdef CONFIG_SND_SEQUENCER_OSS
  29 #include "seq_oss.h"
  30 #endif
  31 #include "emux_legacy.h"
  32 #include "seq_virmidi.h"
  33
  34 /*
  35  * compile flags
  36  */
  37 #define SNDRV_EMUX_USE_RAW_EFFECT
  38
  39 struct snd_emux;
  40 struct snd_emux_port;
  41 struct snd_emux_voice;
  42 struct snd_emux_effect_table;
  43
  44 /*
  45  * operators
  46  */
  47 struct snd_emux_operators {
  48         struct module *owner;
  49         struct snd_emux_voice *(*get_voice)(struct snd_emux *emu,
  50                                             struct snd_emux_port *port);
  51         int (*prepare)(struct snd_emux_voice *vp);
  52         void (*trigger)(struct snd_emux_voice *vp);
  53         void (*release)(struct snd_emux_voice *vp);
  54         void (*update)(struct snd_emux_voice *vp, int update);
  55         void (*terminate)(struct snd_emux_voice *vp);
  56         void (*free_voice)(struct snd_emux_voice *vp);
  57         void (*reset)(struct snd_emux *emu, int ch);
  58         /* the first parameters are struct snd_emux */
  59         int (*sample_new)(struct snd_emux *emu, struct snd_sf_sample *sp,
  60                           struct snd_util_memhdr *hdr,
  61                           const void __user *data, long count);
  62         int (*sample_free)(struct snd_emux *emu, struct snd_sf_sample *sp,
  63                            struct snd_util_memhdr *hdr);
  64         void (*sample_reset)(struct snd_emux *emu);
  65         int (*load_fx)(struct snd_emux *emu, int type, int arg,
  66                        const void __user *data, long count);
  67         void (*sysex)(struct snd_emux *emu, char *buf, int len, int parsed,
  68                       struct snd_midi_channel_set *chset);
  69 #ifdef CONFIG_SND_SEQUENCER_OSS
  70         int (*oss_ioctl)(struct snd_emux *emu, int cmd, int p1, int p2);
  71 #endif
  72 };
  73
  74
  75 /*
  76  * constant values
  77  */
  78 #define SNDRV_EMUX_MAX_PORTS            32      /* max # of sequencer ports */
  79 #define SNDRV_EMUX_MAX_VOICES           64      /* max # of voices */
  80 #define SNDRV_EMUX_MAX_MULTI_VOICES     16      /* max # of playable voices
  81                                                  * simultineously
  82                                                  */
  83
  84 /*
  85  * flags
  86  */
  87 #define SNDRV_EMUX_ACCEPT_ROM           (1<<0)
  88
  89 /*
  90  * emuX wavetable
  91  */
  92 struct snd_emux {
  93
  94         struct snd_card *card;  /* assigned card */
  95
  96         /* following should be initialized before registration */
  97         int max_voices;         /* Number of voices */
  98         int mem_size;           /* memory size (in byte) */
  99         int num_ports;          /* number of ports to be created */
 100         int pitch_shift;        /* pitch shift value (for Emu10k1) */
 101         struct snd_emux_operators ops;  /* operators */
 102         void *hw;               /* hardware */
 103         unsigned long flags;    /* other conditions */
 104         int midi_ports;         /* number of virtual midi devices */
 105         int midi_devidx;        /* device offset of virtual midi */
 106         unsigned int linear_panning: 1; /* panning is linear (sbawe = 1, emu10k1 = 0) */
 107         int hwdep_idx;          /* hwdep device index */
 108         struct snd_hwdep *hwdep;        /* hwdep device */
 109
 110         /* private */
 111         int num_voices;         /* current number of voices */
 112         struct snd_sf_list *sflist;     /* root of SoundFont list */
 113         struct snd_emux_voice *voices;  /* Voices (EMU 'channel') */
 114         int use_time;   /* allocation counter */
 115         spinlock_t voice_lock;  /* Lock for voice access */
 116         struct mutex register_mutex;
 117         int client;             /* For the sequencer client */
 118         int ports[SNDRV_EMUX_MAX_PORTS];        /* The ports for this device */
 119         struct snd_emux_port *portptrs[SNDRV_EMUX_MAX_PORTS];
 120         int used;       /* use counter */
 121         char *name;     /* name of the device (internal) */
 122         struct snd_rawmidi **vmidi;
 123         struct timer_list tlist;        /* for pending note-offs */
 124         int timer_active;
 125
 126         struct snd_util_memhdr *memhdr; /* memory chunk information */
 127
 128 #ifdef CONFIG_PROC_FS
 129         struct snd_info_entry *proc;
 130 #endif
 131
 132 #ifdef CONFIG_SND_SEQUENCER_OSS
 133         struct snd_seq_device *oss_synth;
 134 #endif
 135 };
 136
 137
 138 /*
 139  * sequencer port information
 140  */
 141 struct snd_emux_port {
 142
 143         struct snd_midi_channel_set chset;
 144         struct snd_emux *emu;
 145
 146         char port_mode;                 /* operation mode */
 147         int volume_atten;               /* emuX raw attenuation */
 148         unsigned long drum_flags;       /* drum bitmaps */
 149         int ctrls[EMUX_MD_END];         /* control parameters */
 150 #ifdef SNDRV_EMUX_USE_RAW_EFFECT
 151         struct snd_emux_effect_table *effect;
 152 #endif
 153 #ifdef CONFIG_SND_SEQUENCER_OSS
 154         struct snd_seq_oss_arg *oss_arg;
 155 #endif
 156 };
 157
 158 /* port_mode */
 159 #define SNDRV_EMUX_PORT_MODE_MIDI               0       /* normal MIDI port */
 160 #define SNDRV_EMUX_PORT_MODE_OSS_SYNTH  1       /* OSS synth port */
 161 #define SNDRV_EMUX_PORT_MODE_OSS_MIDI   2       /* OSS multi channel synth port */
 162
 163 /*
 164  * A structure to keep track of each hardware voice
 165  */
 166 struct snd_emux_voice {
 167         int  ch;                /* Hardware channel number */
 168
 169         int  state;             /* status */
 170 #define SNDRV_EMUX_ST_OFF               0x00    /* Not playing, and inactive */
 171 #define SNDRV_EMUX_ST_ON                0x01    /* Note on */
 172 #define SNDRV_EMUX_ST_RELEASED  (0x02|SNDRV_EMUX_ST_ON) /* Note released */
 173 #define SNDRV_EMUX_ST_SUSTAINED (0x04|SNDRV_EMUX_ST_ON) /* Note sustained */
 174 #define SNDRV_EMUX_ST_STANDBY   (0x08|SNDRV_EMUX_ST_ON) /* Waiting to be triggered */
 175 #define SNDRV_EMUX_ST_PENDING   (0x10|SNDRV_EMUX_ST_ON) /* Note will be released */
 176 #define SNDRV_EMUX_ST_LOCKED            0x100   /* Not accessible */
 177
 178         unsigned int  time;     /* An allocation time */
 179         unsigned char note;     /* Note currently assigned to this voice */
 180         unsigned char key;
 181         unsigned char velocity; /* Velocity of current note */
 182
 183         struct snd_sf_zone *zone;       /* Zone assigned to this note */
 184         void *block;            /* sample block pointer (optional) */
 185         struct snd_midi_channel *chan;  /* Midi channel for this note */
 186         struct snd_emux_port *port;     /* associated port */
 187         struct snd_emux *emu;   /* assigned root info */
 188         void *hw;               /* hardware pointer (emu8000 or emu10k1) */
 189         unsigned long ontime;   /* jiffies at note triggered */
 190
 191         /* Emu8k/Emu10k1 registers */
 192         struct soundfont_voice_info reg;
 193
 194         /* additional registers */
 195         int avol;               /* volume attenuation */
 196         int acutoff;            /* cutoff target */
 197         int apitch;             /* pitch offset */
 198         int apan;               /* pan/aux pair */
 199         int aaux;
 200         int ptarget;            /* pitch target */
 201         int vtarget;            /* volume target */
 202         int ftarget;            /* filter target */
 203
 204 };
 205
 206 /*
 207  * update flags (can be combined)
 208  */
 209 #define SNDRV_EMUX_UPDATE_VOLUME                (1<<0)
 210 #define SNDRV_EMUX_UPDATE_PITCH         (1<<1)
 211 #define SNDRV_EMUX_UPDATE_PAN           (1<<2)
 212 #define SNDRV_EMUX_UPDATE_FMMOD         (1<<3)
 213 #define SNDRV_EMUX_UPDATE_TREMFREQ      (1<<4)
 214 #define SNDRV_EMUX_UPDATE_FM2FRQ2               (1<<5)
 215 #define SNDRV_EMUX_UPDATE_Q             (1<<6)
 216
 217
 218 #ifdef SNDRV_EMUX_USE_RAW_EFFECT
 219 /*
 220  * effect table
 221  */
 222 struct snd_emux_effect_table {
 223         /* Emu8000 specific effects */
 224         short val[EMUX_NUM_EFFECTS];
 225         unsigned char flag[EMUX_NUM_EFFECTS];
 226 };
 227 #endif /* SNDRV_EMUX_USE_RAW_EFFECT */
 228
 229
 230 /*
 231  * prototypes - interface to Emu10k1 and Emu8k routines
 232  */
 233 int snd_emux_new(struct snd_emux **remu);
 234 int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name);
 235 int snd_emux_free(struct snd_emux *emu);
 236
 237 /*
 238  * exported functions
 239  */
 240 void snd_emux_terminate_all(struct snd_emux *emu);
 241 void snd_emux_lock_voice(struct snd_emux *emu, int voice);
 242 void snd_emux_unlock_voice(struct snd_emux *emu, int voice);
 243
 244 #endif /* __SOUND_EMUX_SYNTH_H */