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     1ˆÐÏƒqö›Î¾Ì !    1/* SPDX-License-Identifier: GPL-2.0-or-later */
#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>
 */

#include <sound/seq_kernel.h>
#include <sound/seq_device.h>
#include <sound/soundfont.h>
#include <sound/seq_midi_emul.h>
#include <sound/seq_oss.h>
#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);
#if IS_ENABLED(CONFIG_SND_SEQUENCER_OSS)
	int (*oss_ioctl)(struct snd_emux *emu, int cmd, int p1, int p2);
#endif
	int (*get_pitch_shift)(struct snd_emux *emu);
};


/*
 * 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 */
	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 */
	const 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

#if IS_ENABLED(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
	str