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linux-headers-6.8.0-101
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sound
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emux_synth.h
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/* 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 */ 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 struct snd_emux_effect_table *effect; #endif #if IS_ENABLED(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 */