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Release 4.12 include/sound/emux_synth.h

Directory: include/sound
#ifndef __SOUND_EMUX_SYNTH_H

#define __SOUND_EMUX_SYNTH_H

/*
 *  Defines for the Emu-series WaveTable chip
 *
 *  Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
 *
 *   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
 */

#include <sound/seq_kernel.h>
#include <sound/seq_device.h>
#include <sound/soundfont.h>
#include <sound/seq_midi_emul.h>
#ifdef CONFIG_SND_SEQUENCER_OSS
#include <sound/seq_oss.h>
#endif
#include <sound/emux_legacy.h>
#include <sound/seq_virmidi.h>

/*
 * compile flags
 */

#define SNDRV_EMUX_USE_RAW_EFFECT

struct snd_emux;
struct snd_emux_port;
struct snd_emux_voice;
struct snd_emux_effect_table;

/*
 * operators
 */

struct snd_emux_operators {
	
struct module *owner;
	
struct snd_emux_voice *(*get_voice)(struct snd_emux *emu,
					    struct snd_emux_port *port);
	
int (*prepare)(struct snd_emux_voice *vp);
	
void (*trigger)(struct snd_emux_voice *vp);
	
void (*release)(struct snd_emux_voice *vp);
	
void (*update)(struct snd_emux_voice *vp, int update);
	
void (*terminate)(struct snd_emux_voice *vp);
	
void (*free_voice)(struct snd_emux_voice *vp);
	
void (*reset)(struct snd_emux *emu, int ch);
	/* the first parameters are struct snd_emux */
	
int (*sample_new)(struct snd_emux *emu, struct snd_sf_sample *sp,
			  struct snd_util_memhdr *hdr,
			  const void __user *data, long count);
	
int (*sample_free)(struct snd_emux *emu, struct snd_sf_sample *sp,
			   struct snd_util_memhdr *hdr);
	
void (*sample_reset)(struct snd_emux *emu);
	
int (*load_fx)(struct snd_emux *emu, int type, int arg,
		       const void __user *data, long count);
	
void (*sysex)(struct snd_emux *emu, char *buf, int len, int parsed,
		      struct snd_midi_channel_set *chset);
#ifdef CONFIG_SND_SEQUENCER_OSS
	
int (*oss_ioctl)(struct snd_emux *emu, int cmd, int p1, int p2);
#endif
};


/*
 * constant values
 */

#define SNDRV_EMUX_MAX_PORTS		32	
/* max # of sequencer ports */

#define SNDRV_EMUX_MAX_VOICES		64	
/* max # of voices */

#define SNDRV_EMUX_MAX_MULTI_VOICES	16	
/* max # of playable voices
                                                 * simultineously
                                                 */

/*
 * flags
 */

#define SNDRV_EMUX_ACCEPT_ROM		(1<<0)

/*
 * emuX wavetable
 */

struct snd_emux {

	
struct snd_card *card;	/* assigned card */

	/* following should be initialized before registration */
	
int max_voices;		/* Number of voices */
	
int mem_size;		/* memory size (in byte) */
	
int num_ports;		/* number of ports to be created */
	
int pitch_shift;	/* pitch shift value (for Emu10k1) */
	
struct snd_emux_operators ops;	/* operators */
	
void *hw;		/* hardware */
	
unsigned long flags;	/* other conditions */
	
int midi_ports;		/* number of virtual midi devices */
	
int midi_devidx;	/* device offset of virtual midi */
	
unsigned int linear_panning: 1; /* panning is linear (sbawe = 1, emu10k1 = 0) */
	
int hwdep_idx;		/* hwdep device index */
	
struct snd_hwdep *hwdep;	/* hwdep device */

	/* private */
	
int num_voices;		/* current number of voices */
	
struct snd_sf_list *sflist;	/* root of SoundFont list */
	
struct snd_emux_voice *voices;	/* Voices (EMU 'channel') */
	
int use_time;	/* allocation counter */
	
spinlock_t voice_lock;	/* Lock for voice access */
	
struct mutex register_mutex;
	
int client;		/* For the sequencer client */
	
int ports[SNDRV_EMUX_MAX_PORTS];	/* The ports for this device */
	
struct snd_emux_port *portptrs[SNDRV_EMUX_MAX_PORTS];
	
int used;	/* use counter */
	
char *name;	/* name of the device (internal) */
	
struct snd_rawmidi **vmidi;
	
struct timer_list tlist;	/* for pending note-offs */
	
int timer_active;

	
struct snd_util_memhdr *memhdr;	/* memory chunk information */

#ifdef CONFIG_SND_PROC_FS
	
struct snd_info_entry *proc;
#endif

#ifdef CONFIG_SND_SEQUENCER_OSS
	
struct snd_seq_device *oss_synth;
#endif
};


/*
 * sequencer port information
 */

struct snd_emux_port {

	
struct snd_midi_channel_set chset;
	
struct snd_emux *emu;

	
char port_mode;			/* operation mode */
	
int volume_atten;		/* emuX raw attenuation */
	
unsigned long drum_flags;	/* drum bitmaps */
	
int ctrls[EMUX_MD_END];		/* control parameters */
#ifdef SNDRV_EMUX_USE_RAW_EFFECT
	
struct snd_emux_effect_table *effect;
#endif
#ifdef CONFIG_SND_SEQUENCER_OSS
	
struct snd_seq_oss_arg *oss_arg;
#endif
};

/* port_mode */

#define SNDRV_EMUX_PORT_MODE_MIDI		0	
/* normal MIDI port */

#define SNDRV_EMUX_PORT_MODE_OSS_SYNTH	1	
/* OSS synth port */

#define SNDRV_EMUX_PORT_MODE_OSS_MIDI	2	
/* OSS multi channel synth port */

/*
 * A structure to keep track of each hardware voice
 */

struct snd_emux_voice {
	
int  ch;		/* Hardware channel number */

	
int  state;		/* status */

#define SNDRV_EMUX_ST_OFF		0x00	/* Not playing, and inactive */

#define SNDRV_EMUX_ST_ON		0x01	/* Note on */

#define SNDRV_EMUX_ST_RELEASED 	(0x02|SNDRV_EMUX_ST_ON)	/* Note released */

#define SNDRV_EMUX_ST_SUSTAINED	(0x04|SNDRV_EMUX_ST_ON)	/* Note sustained */

#define SNDRV_EMUX_ST_STANDBY	(0x08|SNDRV_EMUX_ST_ON)	/* Waiting to be triggered */

#define SNDRV_EMUX_ST_PENDING 	(0x10|SNDRV_EMUX_ST_ON)	/* Note will be released */

#define SNDRV_EMUX_ST_LOCKED		0x100	/* Not accessible */

	
unsigned int  time;	/* An allocation time */
	
unsigned char note;	/* Note currently assigned to this voice */
	
unsigned char key;
	
unsigned char velocity;	/* Velocity of current note */

	
struct snd_sf_zone *zone;	/* Zone assigned to this note */
	
void *block;		/* sample block pointer (optional) */
	
struct snd_midi_channel *chan;	/* Midi channel for this note */
	
struct snd_emux_port *port;	/* associated port */
	
struct snd_emux *emu;	/* assigned root info */
	
void *hw;		/* hardware pointer (emu8000 or emu10k1) */
	
unsigned long ontime;	/* jiffies at note triggered */
	
	/* Emu8k/Emu10k1 registers */
	
struct soundfont_voice_info reg;

	/* additional registers */
	
int avol;		/* volume attenuation */
	
int acutoff;		/* cutoff target */
	
int apitch;		/* pitch offset */
	
int apan;		/* pan/aux pair */
	
int aaux;
	
int ptarget;		/* pitch target */
	
int vtarget;		/* volume target */
	
int ftarget;		/* filter target */

};

/*
 * update flags (can be combined)
 */

#define SNDRV_EMUX_UPDATE_VOLUME		(1<<0)

#define SNDRV_EMUX_UPDATE_PITCH		(1<<1)

#define SNDRV_EMUX_UPDATE_PAN		(1<<2)

#define SNDRV_EMUX_UPDATE_FMMOD		(1<<3)

#define SNDRV_EMUX_UPDATE_TREMFREQ	(1<<4)

#define SNDRV_EMUX_UPDATE_FM2FRQ2		(1<<5)

#define SNDRV_EMUX_UPDATE_Q		(1<<6)


#ifdef SNDRV_EMUX_USE_RAW_EFFECT
/*
 * effect table
 */

struct snd_emux_effect_table {
	/* Emu8000 specific effects */
	
short val[EMUX_NUM_EFFECTS];
	
unsigned char flag[EMUX_NUM_EFFECTS];
};
#endif /* SNDRV_EMUX_USE_RAW_EFFECT */


/*
 * prototypes - interface to Emu10k1 and Emu8k routines
 */
int snd_emux_new(struct snd_emux **remu);
int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, char *name);
int snd_emux_free(struct snd_emux *emu);

/*
 * exported functions
 */
void snd_emux_terminate_all(struct snd_emux *emu);
void snd_emux_lock_voice(struct snd_emux *emu, int voice);
void snd_emux_unlock_voice(struct snd_emux *emu, int voice);

#endif /* __SOUND_EMUX_SYNTH_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela73386.24%444.44%
Takashi Iwai10812.71%222.22%
David Howells70.82%111.11%
Al Viro10.12%111.11%
Ingo Molnar10.12%111.11%
Total850100.00%9100.00%
Directory: include/sound
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