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
  40 /*
  41  * typedefs
  42  */
  43 typedef struct snd_emux_effect_table snd_emux_effect_table_t;
  44 typedef struct snd_emux_port snd_emux_port_t;
  45 typedef struct snd_emux_voice snd_emux_voice_t;
  46 typedef struct snd_emux snd_emux_t;
  47
  48
  49 /*
  50  * operators
  51  */
  52 typedef struct snd_emux_operators {
  53         struct module *owner;
  54         snd_emux_voice_t *(*get_voice)(snd_emux_t *emu, snd_emux_port_t *port);
  55         int (*prepare)(snd_emux_voice_t *vp);
  56         void (*trigger)(snd_emux_voice_t *vp);
  57         void (*release)(snd_emux_voice_t *vp);
  58         void (*update)(snd_emux_voice_t *vp, int update);
  59         void (*terminate)(snd_emux_voice_t *vp);
  60         void (*free_voice)(snd_emux_voice_t *vp);
  61         void (*reset)(snd_emux_t *emu, int ch);
  62         /* the first parameters are snd_emux_t */
  63         int (*sample_new)(snd_emux_t *emu, snd_sf_sample_t *sp, snd_util_memhdr_t *hdr, const void __user *data, long count);
  64         int (*sample_free)(snd_emux_t *emu, snd_sf_sample_t *sp, snd_util_memhdr_t *hdr);
  65         void (*sample_reset)(snd_emux_t *emu);
  66         int (*load_fx)(snd_emux_t *emu, int type, int arg, const void __user *data, long count);
  67         void (*sysex)(snd_emux_t *emu, char *buf, int len, int parsed, snd_midi_channel_set_t *chset);
  68 #ifdef CONFIG_SND_SEQUENCER_OSS
  69         int (*oss_ioctl)(snd_emux_t *emu, int cmd, int p1, int p2);
  70 #endif
  71 } snd_emux_operators_t;
  72
  73
  74 /*
  75  * constant values
  76  */
  77 #define SNDRV_EMUX_MAX_PORTS            32      /* max # of sequencer ports */
  78 #define SNDRV_EMUX_MAX_VOICES           64      /* max # of voices */
  79 #define SNDRV_EMUX_MAX_MULTI_VOICES     16      /* max # of playable voices
  80                                                  * simultineously
  81                                                  */
  82
  83 /*
  84  * flags
  85  */
  86 #define SNDRV_EMUX_ACCEPT_ROM           (1<<0)
  87
  88 /*
  89  * emuX wavetable
  90  */
  91 struct snd_emux {
  92
  93         snd_card_t *card;       /* assigned card */
  94
  95         /* following should be initialized before registration */
  96         int max_voices;         /* Number of voices */
  97         int mem_size;           /* memory size (in byte) */
  98         int num_ports;          /* number of ports to be created */
  99         int pitch_shift;        /* pitch shift value (for Emu10k1) */
 100         snd_emux_operators_t ops;       /* operators */
 101         void *hw;               /* hardware */
 102         unsigned long flags;    /* other conditions */
 103         int midi_ports;         /* number of virtual midi devices */
 104         int midi_devidx;        /* device offset of virtual midi */
 105         unsigned int linear_panning: 1; /* panning is linear (sbawe = 1, emu10k1 = 0) */
 106         int hwdep_idx;          /* hwdep device index */
 107         snd_hwdep_t *hwdep;     /* hwdep device */
 108
 109         /* private */
 110         int num_voices;         /* current number of voices */
 111         snd_sf_list_t *sflist;  /* root of SoundFont list */
 112         snd_emux_voice_t *voices;       /* Voices (EMU 'channel') */
 113         int use_time;   /* allocation counter */
 114         spinlock_t voice_lock;  /* Lock for voice access */
 115         struct semaphore register_mutex;
 116         int client;             /* For the sequencer client */
 117         int ports[SNDRV_EMUX_MAX_PORTS];        /* The ports for this device */
 118         snd_emux_port_t *portptrs[SNDRV_EMUX_MAX_PORTS];
 119         int used;       /* use counter */
 120         char *name;     /* name of the device (internal) */
 121         snd_rawmidi_t **vmidi;
 122         struct timer_list tlist;        /* for pending note-offs */
 123         int timer_active;
 124
 125         snd_util_memhdr_t *memhdr;      /* memory chunk information */
 126
 127 #ifdef CONFIG_PROC_FS
 128         snd_info_entry_t *proc;
 129 #endif
 130
 131 #ifdef CONFIG_SND_SEQUENCER_OSS
 132         snd_seq_device_t *oss_synth;
 133 #endif
 134 };
 135
 136
 137 /*
 138  * sequencer port information
 139  */
 140 struct snd_emux_port {
 141
 142         snd_midi_channel_set_t chset;
 143         snd_emux_t *emu;
 144
 145         char port_mode;                 /* operation mode */
 146         int volume_atten;               /* emuX raw attenuation */
 147         unsigned long drum_flags;       /* drum bitmaps */
 148         int ctrls[EMUX_MD_END];         /* control parameters */
 149 #ifdef SNDRV_EMUX_USE_RAW_EFFECT
 150         snd_emux_effect_table_t *effect;
 151 #endif
 152 #ifdef CONFIG_SND_SEQUENCER_OSS
 153         snd_seq_oss_arg_t *oss_arg;
 154 #endif
 155 };
 156
 157 /* port_mode */
 158 #define SNDRV_EMUX_PORT_MODE_MIDI               0       /* normal MIDI port */
 159 #define SNDRV_EMUX_PORT_MODE_OSS_SYNTH  1       /* OSS synth port */
 160 #define SNDRV_EMUX_PORT_MODE_OSS_MIDI   2       /* OSS multi channel synth port */
 161
 162 /*
 163  * A structure to keep track of each hardware voice
 164  */
 165 struct snd_emux_voice {
 166         int  ch;                /* Hardware channel number */
 167
 168         int  state;             /* status */
 169 #define SNDRV_EMUX_ST_OFF               0x00    /* Not playing, and inactive */
 170 #define SNDRV_EMUX_ST_ON                0x01    /* Note on */
 171 #define SNDRV_EMUX_ST_RELEASED  (0x02|SNDRV_EMUX_ST_ON) /* Note released */
 172 #define SNDRV_EMUX_ST_SUSTAINED (0x04|SNDRV_EMUX_ST_ON) /* Note sustained */
 173 #define SNDRV_EMUX_ST_STANDBY   (0x08|SNDRV_EMUX_ST_ON) /* Waiting to be triggered */
 174 #define SNDRV_EMUX_ST_PENDING   (0x10|SNDRV_EMUX_ST_ON) /* Note will be released */
 175 #define SNDRV_EMUX_ST_LOCKED            0x100   /* Not accessible */
 176
 177         unsigned int  time;     /* An allocation time */
 178         unsigned char note;     /* Note currently assigned to this voice */
 179         unsigned char key;
 180         unsigned char velocity; /* Velocity of current note */
 181
 182         snd_sf_zone_t *zone;    /* Zone assigned to this note */
 183         void *block;            /* sample block pointer (optional) */
 184         snd_midi_channel_t *chan;       /* Midi channel for this note */
 185         snd_emux_port_t *port;  /* associated port */
 186         snd_emux_t *emu;        /* assigned root info */
 187         void *hw;               /* hardware pointer (emu8000_t or emu10k1_t) */
 188         unsigned long ontime;   /* jiffies at note triggered */
 189
 190         /* Emu8k/Emu10k1 registers */
 191         soundfont_voice_info_t reg;
 192
 193         /* additional registers */
 194         int avol;               /* volume attenuation */
 195         int acutoff;            /* cutoff target */
 196         int apitch;             /* pitch offset */
 197         int apan;               /* pan/aux pair */
 198         int aaux;
 199         int ptarget;            /* pitch target */
 200         int vtarget;            /* volume target */
 201         int ftarget;            /* filter target */
 202
 203 };
 204
 205 /*
 206  * update flags (can be combined)
 207  */
 208 #define SNDRV_EMUX_UPDATE_VOLUME                (1<<0)
 209 #define SNDRV_EMUX_UPDATE_PITCH         (1<<1)
 210 #define SNDRV_EMUX_UPDATE_PAN           (1<<2)
 211 #define SNDRV_EMUX_UPDATE_FMMOD         (1<<3)
 212 #define SNDRV_EMUX_UPDATE_TREMFREQ      (1<<4)
 213 #define SNDRV_EMUX_UPDATE_FM2FRQ2               (1<<5)
 214 #define SNDRV_EMUX_UPDATE_Q             (1<<6)
 215
 216
 217 #ifdef SNDRV_EMUX_USE_RAW_EFFECT
 218 /*
 219  * effect table
 220  */
 221 struct snd_emux_effect_table {
 222         /* Emu8000 specific effects */
 223         short val[EMUX_NUM_EFFECTS];
 224         unsigned char flag[EMUX_NUM_EFFECTS];
 225 };
 226 #endif /* SNDRV_EMUX_USE_RAW_EFFECT */
 227
 228
 229 /*
 230  * prototypes - interface to Emu10k1 and Emu8k routines
 231  */
 232 int snd_emux_new(snd_emux_t **remu);
 233 int snd_emux_register(snd_emux_t *emu, snd_card_t *card, int index, char *name);
 234 int snd_emux_free(snd_emux_t *emu);
 235
 236 /*
 237  * exported functions
 238  */
 239 void snd_emux_terminate_all(snd_emux_t *emu);
 240 void snd_emux_lock_voice(snd_emux_t *emu, int voice);
 241 void snd_emux_unlock_voice(snd_emux_t *emu, int voice);
 242
 243 #endif /* __SOUND_EMUX_SYNTH_H */