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Diffstat (limited to 'include/sound/emux_synth.h')
| -rw-r--r-- | include/sound/emux_synth.h | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/include/sound/emux_synth.h b/include/sound/emux_synth.h new file mode 100644 index 000000000000..c6970aac9bdc --- /dev/null +++ b/include/sound/emux_synth.h @@ -0,0 +1,243 @@ +#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 "seq_kernel.h" +#include "seq_device.h" +#include "soundfont.h" +#include "seq_midi_emul.h" +#ifdef CONFIG_SND_SEQUENCER_OSS +#include "seq_oss.h" +#endif +#include "emux_legacy.h" +#include "seq_virmidi.h" + +/* + * compile flags + */ +#define SNDRV_EMUX_USE_RAW_EFFECT + + +/* + * typedefs + */ +typedef struct snd_emux_effect_table snd_emux_effect_table_t; +typedef struct snd_emux_port snd_emux_port_t; +typedef struct snd_emux_voice snd_emux_voice_t; +typedef struct snd_emux snd_emux_t; + + +/* + * operators + */ +typedef struct snd_emux_operators { + struct module *owner; + snd_emux_voice_t *(*get_voice)(snd_emux_t *emu, snd_emux_port_t *port); + int (*prepare)(snd_emux_voice_t *vp); + void (*trigger)(snd_emux_voice_t *vp); + void (*release)(snd_emux_voice_t *vp); + void (*update)(snd_emux_voice_t *vp, int update); + void (*terminate)(snd_emux_voice_t *vp); + void (*free_voice)(snd_emux_voice_t *vp); + void (*reset)(snd_emux_t *emu, int ch); + /* the first parameters are snd_emux_t */ + int (*sample_new)(snd_emux_t *emu, snd_sf_sample_t *sp, snd_util_memhdr_t *hdr, const void __user *data, long count); + int (*sample_free)(snd_emux_t *emu, snd_sf_sample_t *sp, snd_util_memhdr_t *hdr); + void (*sample_reset)(snd_emux_t *emu); + int (*load_fx)(snd_emux_t *emu, int type, int arg, const void __user *data, long count); + void (*sysex)(snd_emux_t *emu, char *buf, int len, int parsed, snd_midi_channel_set_t *chset); +#ifdef CONFIG_SND_SEQUENCER_OSS + int (*oss_ioctl)(snd_emux_t *emu, int cmd, int p1, int p2); +#endif +} snd_emux_operators_t; + + +/* + * 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 { + + snd_card_t *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) */ + snd_emux_operators_t 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 */ + snd_hwdep_t *hwdep; /* hwdep device */ + + /* private */ + int num_voices; /* current number of voices */ + snd_sf_list_t *sflist; /* root of SoundFont list */ + snd_emux_voice_t *voices; /* Voices (EMU 'channel') */ + int use_time; /* allocation counter */ + spinlock_t voice_lock; /* Lock for voice access */ + struct semaphore register_mutex; + int client; /* For the sequencer client */ + int ports[SNDRV_EMUX_MAX_PORTS]; /* The ports for this device */ + snd_emux_port_t *portptrs[SNDRV_EMUX_MAX_PORTS]; + int used; /* use counter */ + char *name; /* name of the device (internal) */ + snd_rawmidi_t **vmidi; + struct timer_list tlist; /* for pending note-offs */ + int timer_active; + + snd_util_memhdr_t *memhdr; /* memory chunk information */ + +#ifdef CONFIG_PROC_FS + snd_info_entry_t *proc; +#endif + +#ifdef CONFIG_SND_SEQUENCER_OSS + snd_seq_device_t *oss_synth; +#endif +}; + + +/* + * sequencer port information + */ +struct snd_emux_port { + + snd_midi_channel_set_t chset; + snd_emux_t *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 + snd_emux_effect_table_t *effect; +#endif +#ifdef CONFIG_SND_SEQUENCER_OSS + snd_seq_oss_arg_t *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 */ + + snd_sf_zone_t *zone; /* Zone assigned to this note */ + void *block; /* sample block pointer (optional) */ + snd_midi_channel_t *chan; /* Midi channel for this note */ + snd_emux_port_t *port; /* associated port */ + snd_emux_t *emu; /* assigned root info */ + void *hw; /* hardware pointer (emu8000_t or emu10k1_t) */ + unsigned long ontime; /* jiffies at note triggered */ + + /* Emu8k/Emu10k1 registers */ + soundfont_voice_info_t 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(snd_emux_t **remu); +int snd_emux_register(snd_emux_t *emu, snd_card_t *card, int index, char *name); +int snd_emux_free(snd_emux_t *emu); + +/* + * exported functions + */ +void snd_emux_terminate_all(snd_emux_t *emu); +void snd_emux_lock_voice(snd_emux_t *emu, int voice); +void snd_emux_unlock_voice(snd_emux_t *emu, int voice); + +#endif /* __SOUND_EMUX_SYNTH_H */ |