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 <sound/seq_kernel.h>
  25 #include <sound/seq_device.h>
  26 #include <sound/soundfont.h>
  27 #include <sound/seq_midi_emul.h>
  28 #include <sound/seq_oss.h>
  29 #include <sound/emux_legacy.h>
  30 #include <sound/seq_virmidi.h>
  31
  32 /*
  33  * compile flags
  34  */
  35 #define SNDRV_EMUX_USE_RAW_EFFECT
  36
  37 struct snd_emux;
  38 struct snd_emux_port;
  39 struct snd_emux_voice;
  40 struct snd_emux_effect_table;
  41
  42 /*
  43  * operators
  44  */
  45 struct snd_emux_operators {
  46         struct module *owner;
  47         struct snd_emux_voice *(*get_voice)(struct snd_emux *emu,
  48                                             struct snd_emux_port *port);
  49         int (*prepare)(struct snd_emux_voice *vp);
  50         void (*trigger)(struct snd_emux_voice *vp);
  51         void (*release)(struct snd_emux_voice *vp);
  52         void (*update)(struct snd_emux_voice *vp, int update);
  53         void (*terminate)(struct snd_emux_voice *vp);
  54         void (*free_voice)(struct snd_emux_voice *vp);
  55         void (*reset)(struct snd_emux *emu, int ch);
  56         /* the first parameters are struct snd_emux */
  57         int (*sample_new)(struct snd_emux *emu, struct snd_sf_sample *sp,
  58                           struct snd_util_memhdr *hdr,
  59                           const void __user *data, long count);
  60         int (*sample_free)(struct snd_emux *emu, struct snd_sf_sample *sp,
  61                            struct snd_util_memhdr *hdr);
  62         void (*sample_reset)(struct snd_emux *emu);
  63         int (*load_fx)(struct snd_emux *emu, int type, int arg,
  64                        const void __user *data, long count);
  65         void (*sysex)(struct snd_emux *emu, char *buf, int len, int parsed,
  66                       struct snd_midi_channel_set *chset);
  67 #if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS)
  68         int (*oss_ioctl)(struct snd_emux *emu, int cmd, int p1, int p2);
  69 #endif
  70 };
  71
  72
  73 /*
  74  * constant values
  75  */
  76 #define SNDRV_EMUX_MAX_PORTS            32      /* max # of sequencer ports */
  77 #define SNDRV_EMUX_MAX_VOICES           64      /* max # of voices */
  78 #define SNDRV_EMUX_MAX_MULTI_VOICES     16      /* max # of playable voices
  79                                                  * simultineously
  80                                                  */
  81
  82 /*
  83  * flags
  84  */
  85 #define SNDRV_EMUX_ACCEPT_ROM           (1<<0)
  86
  87 /*
  88  * emuX wavetable
  89  */
  90 struct snd_emux {
  91
  92         struct snd_card *card;  /* assigned card */
  93
  94         /* following should be initialized before registration */
  95         int max_voices;         /* Number of voices */
  96         int mem_size;           /* memory size (in byte) */
  97         int num_ports;          /* number of ports to be created */
  98         int pitch_shift;        /* pitch shift value (for Emu10k1) */
  99         struct snd_emux_operators ops;  /* operators */
 100         void *hw;               /* hardware */
 101         unsigned long flags;    /* other conditions */
 102         int midi_ports;         /* number of virtual midi devices */
 103         int midi_devidx;        /* device offset of virtual midi */
 104         unsigned int linear_panning: 1; /* panning is linear (sbawe = 1, emu10k1 = 0) */
 105         int hwdep_idx;          /* hwdep device index */
 106         struct snd_hwdep *hwdep;        /* hwdep device */
 107
 108         /* private */
 109         int num_voices;         /* current number of voices */
 110         struct snd_sf_list *sflist;     /* root of SoundFont list */
 111         struct snd_emux_voice *voices;  /* Voices (EMU 'channel') */
 112         int use_time;   /* allocation counter */
 113         spinlock_t voice_lock;  /* Lock for voice access */
 114         struct mutex register_mutex;
 115         int client;             /* For the sequencer client */
 116         int ports[SNDRV_EMUX_MAX_PORTS];        /* The ports for this device */
 117         struct snd_emux_port *portptrs[SNDRV_EMUX_MAX_PORTS];
 118         int used;       /* use counter */
 119         char *name;     /* name of the device (internal) */
 120         struct snd_rawmidi **vmidi;
 121         struct timer_list tlist;        /* for pending note-offs */
 122         int timer_active;
 123
 124         struct snd_util_memhdr *memhdr; /* memory chunk information */
 125
 126 #ifdef CONFIG_SND_PROC_FS
 127         struct snd_info_entry *proc;
 128 #endif
 129
 130 #if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS)
 131         struct snd_seq_device *oss_synth;
 132 #endif
 133 };
 134
 135
 136 /*
 137  * sequencer port information
 138  */
 139 struct snd_emux_port {
 140
 141         struct snd_midi_channel_set chset;
 142         struct snd_emux *emu;
 143
 144         char port_mode;                 /* operation mode */
 145         int volume_atten;               /* emuX raw attenuation */
 146         unsigned long drum_flags;       /* drum bitmaps */
 147         int ctrls[EMUX_MD_END];         /* control parameters */
 148 #ifdef SNDRV_EMUX_USE_RAW_EFFECT
 149         struct snd_emux_effect_table *effect;
 150 #endif
 151 #if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS)
 152         struct snd_seq_oss_arg *oss_arg;
 153 #endif
 154 };
 155
 156 /* port_mode */
 157 #define SNDRV_EMUX_PORT_MODE_MIDI               0       /* normal MIDI port */
 158 #define SNDRV_EMUX_PORT_MODE_OSS_SYNTH  1       /* OSS synth port */
 159 #define SNDRV_EMUX_PORT_MODE_OSS_MIDI   2       /* OSS multi channel synth port */
 160
 161 /*
 162  * A structure to keep track of each hardware voice
 163  */
 164 struct snd_emux_voice {
 165         int  ch;                /* Hardware channel number */
 166
 167         int  state;             /* status */
 168 #define SNDRV_EMUX_ST_OFF               0x00    /* Not playing, and inactive */
 169 #define SNDRV_EMUX_ST_ON                0x01    /* Note on */
 170 #define SNDRV_EMUX_ST_RELEASED  (0x02|SNDRV_EMUX_ST_ON) /* Note released */
 171 #define SNDRV_EMUX_ST_SUSTAINED (0x04|SNDRV_EMUX_ST_ON) /* Note sustained */
 172 #define SNDRV_EMUX_ST_STANDBY   (0x08|SNDRV_EMUX_ST_ON) /* Waiting to be triggered */
 173 #define SNDRV_EMUX_ST_PENDING   (0x10|SNDRV_EMUX_ST_ON) /* Note will be released */
 174 #define SNDRV_EMUX_ST_LOCKED            0x100   /* Not accessible */
 175
 176         unsigned int  time;     /* An allocation time */
 177         unsigned char note;     /* Note currently assigned to this voice */
 178         unsigned char key;
 179         unsigned char velocity; /* Velocity of current note */
 180
 181         struct snd_sf_zone *zone;       /* Zone assigned to this note */
 182         void *block;            /* sample block pointer (optional) */
 183         struct snd_midi_channel *chan;  /* Midi channel for this note */
 184         struct snd_emux_port *port;     /* associated port */
 185         struct snd_emux *emu;   /* assigned root info */
 186         void *hw;               /* hardware pointer (emu8000 or emu10k1) */
 187         unsigned long ontime;   /* jiffies at note triggered */
 188
 189         /* Emu8k/Emu10k1 registers */
 190         struct soundfont_voice_info reg;
 191
 192         /* additional registers */
 193         int avol;               /* volume attenuation */
 194         int acutoff;            /* cutoff target */
 195         int apitch;             /* pitch offset */
 196         int apan;               /* pan/aux pair */
 197         int aaux;
 198         int ptarget;            /* pitch target */
 199         int vtarget;            /* volume target */
 200         int ftarget;            /* filter target */
 201
 202 };
 203
 204 /*
 205  * update flags (can be combined)
 206  */
 207 #define SNDRV_EMUX_UPDATE_VOLUME                (1<<0)
 208 #define SNDRV_EMUX_UPDATE_PITCH         (1<<1)
 209 #define SNDRV_EMUX_UPDATE_PAN           (1<<2)
 210 #define SNDRV_EMUX_UPDATE_FMMOD         (1<<3)
 211 #define SNDRV_EMUX_UPDATE_TREMFREQ      (1<<4)
 212 #define SNDRV_EMUX_UPDATE_FM2FRQ2               (1<<5)
 213 #define SNDRV_EMUX_UPDATE_Q             (1<<6)
 214
 215
 216 #ifdef SNDRV_EMUX_USE_RAW_EFFECT
 217 /*
 218  * effect table
 219  */
 220 struct snd_emux_effect_table {
 221         /* Emu8000 specific effects */
 222         short val[EMUX_NUM_EFFECTS];
 223         unsigned char flag[EMUX_NUM_EFFECTS];
 224 };
 225 #endif /* SNDRV_EMUX_USE_RAW_EFFECT */
 226
 227
 228 /*
 229  * prototypes - interface to Emu10k1 and Emu8k routines
 230  */
 231 int snd_emux_new(struct snd_emux **remu);
 232 int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name);
 233 int snd_emux_free(struct snd_emux *emu);
 234
 235 /*
 236  * exported functions
 237  */
 238 void snd_emux_terminate_all(struct snd_emux *emu);
 239 void snd_emux_lock_voice(struct snd_emux *emu, int voice);
 240 void snd_emux_unlock_voice(struct snd_emux *emu, int voice);
 241
 242 #endif /* __SOUND_EMUX_SYNTH_H */