mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-11 21:38:32 +08:00
1a59d1b8e0
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
184 lines
6.6 KiB
C
184 lines
6.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
#ifndef __SOUND_SEQ_MIDI_EMUL_H
|
|
#define __SOUND_SEQ_MIDI_EMUL_H
|
|
|
|
/*
|
|
* Midi channel definition for optional channel management.
|
|
*
|
|
* Copyright (C) 1999 Steve Ratcliffe
|
|
*/
|
|
|
|
#include <sound/seq_kernel.h>
|
|
|
|
/*
|
|
* This structure is used to keep track of the current state on each
|
|
* channel. All drivers for hardware that does not understand midi
|
|
* directly will probably need to use this structure.
|
|
*/
|
|
struct snd_midi_channel {
|
|
void *private; /* A back pointer to driver data */
|
|
int number; /* The channel number */
|
|
int client; /* The client associated with this channel */
|
|
int port; /* The port associated with this channel */
|
|
|
|
unsigned char midi_mode; /* GM, GS, XG etc */
|
|
unsigned int
|
|
drum_channel:1, /* Drum channel */
|
|
param_type:1 /* RPN/NRPN */
|
|
;
|
|
|
|
unsigned char midi_aftertouch; /* Aftertouch (key pressure) */
|
|
unsigned char midi_pressure; /* Channel pressure */
|
|
unsigned char midi_program; /* Instrument number */
|
|
short midi_pitchbend; /* Pitch bend amount */
|
|
|
|
unsigned char control[128]; /* Current value of all controls */
|
|
unsigned char note[128]; /* Current status for all notes */
|
|
|
|
short gm_rpn_pitch_bend_range; /* Pitch bend range */
|
|
short gm_rpn_fine_tuning; /* Master fine tuning */
|
|
short gm_rpn_coarse_tuning; /* Master coarse tuning */
|
|
|
|
};
|
|
|
|
/*
|
|
* A structure that represets a set of channels bound to a port. There
|
|
* would usually be 16 channels per port. But fewer could be used for
|
|
* particular cases.
|
|
* The channel set consists of information describing the client and
|
|
* port for this midi synth and an array of snd_midi_channel structures.
|
|
* A driver that had no need for snd_midi_channel could still use the
|
|
* channel set type if it wished with the channel array null.
|
|
*/
|
|
struct snd_midi_channel_set {
|
|
void *private_data; /* Driver data */
|
|
int client; /* Client for this port */
|
|
int port; /* The port number */
|
|
|
|
int max_channels; /* Size of the channels array */
|
|
struct snd_midi_channel *channels;
|
|
|
|
unsigned char midi_mode; /* MIDI operating mode */
|
|
unsigned char gs_master_volume; /* SYSEX master volume: 0-127 */
|
|
unsigned char gs_chorus_mode;
|
|
unsigned char gs_reverb_mode;
|
|
|
|
};
|
|
|
|
struct snd_midi_op {
|
|
void (*note_on)(void *private_data, int note, int vel, struct snd_midi_channel *chan);
|
|
void (*note_off)(void *private_data,int note, int vel, struct snd_midi_channel *chan); /* release note */
|
|
void (*key_press)(void *private_data, int note, int vel, struct snd_midi_channel *chan);
|
|
void (*note_terminate)(void *private_data, int note, struct snd_midi_channel *chan); /* terminate note immediately */
|
|
void (*control)(void *private_data, int type, struct snd_midi_channel *chan);
|
|
void (*nrpn)(void *private_data, struct snd_midi_channel *chan,
|
|
struct snd_midi_channel_set *chset);
|
|
void (*sysex)(void *private_data, unsigned char *buf, int len, int parsed,
|
|
struct snd_midi_channel_set *chset);
|
|
};
|
|
|
|
/*
|
|
* These defines are used so that pitchbend, aftertouch etc, can be
|
|
* distinguished from controller values.
|
|
*/
|
|
/* 0-127 controller values */
|
|
#define MIDI_CTL_PITCHBEND 0x80
|
|
#define MIDI_CTL_AFTERTOUCH 0x81
|
|
#define MIDI_CTL_CHAN_PRESSURE 0x82
|
|
|
|
/*
|
|
* These names exist to allow symbolic access to the controls array.
|
|
* The usage is eg: chan->gm_bank_select. Another implementation would
|
|
* be really have these members in the struct, and not the array.
|
|
*/
|
|
#define gm_bank_select control[0]
|
|
#define gm_modulation control[1]
|
|
#define gm_breath control[2]
|
|
#define gm_foot_pedal control[4]
|
|
#define gm_portamento_time control[5]
|
|
#define gm_data_entry control[6]
|
|
#define gm_volume control[7]
|
|
#define gm_balance control[8]
|
|
#define gm_pan control[10]
|
|
#define gm_expression control[11]
|
|
#define gm_effect_control1 control[12]
|
|
#define gm_effect_control2 control[13]
|
|
#define gm_slider1 control[16]
|
|
#define gm_slider2 control[17]
|
|
#define gm_slider3 control[18]
|
|
#define gm_slider4 control[19]
|
|
|
|
#define gm_bank_select_lsb control[32]
|
|
#define gm_modulation_wheel_lsb control[33]
|
|
#define gm_breath_lsb control[34]
|
|
#define gm_foot_pedal_lsb control[36]
|
|
#define gm_portamento_time_lsb control[37]
|
|
#define gm_data_entry_lsb control[38]
|
|
#define gm_volume_lsb control[39]
|
|
#define gm_balance_lsb control[40]
|
|
#define gm_pan_lsb control[42]
|
|
#define gm_expression_lsb control[43]
|
|
#define gm_effect_control1_lsb control[44]
|
|
#define gm_effect_control2_lsb control[45]
|
|
|
|
#define gm_sustain control[MIDI_CTL_SUSTAIN]
|
|
#define gm_hold gm_sustain
|
|
#define gm_portamento control[MIDI_CTL_PORTAMENTO]
|
|
#define gm_sostenuto control[MIDI_CTL_SOSTENUTO]
|
|
|
|
/*
|
|
* These macros give the complete value of the controls that consist
|
|
* of coarse and fine pairs. Of course the fine controls are seldom used
|
|
* but there is no harm in being complete.
|
|
*/
|
|
#define SNDRV_GM_BANK_SELECT(cp) (((cp)->control[0]<<7)|((cp)->control[32]))
|
|
#define SNDRV_GM_MODULATION_WHEEL(cp) (((cp)->control[1]<<7)|((cp)->control[33]))
|
|
#define SNDRV_GM_BREATH(cp) (((cp)->control[2]<<7)|((cp)->control[34]))
|
|
#define SNDRV_GM_FOOT_PEDAL(cp) (((cp)->control[4]<<7)|((cp)->control[36]))
|
|
#define SNDRV_GM_PORTAMENTO_TIME(cp) (((cp)->control[5]<<7)|((cp)->control[37]))
|
|
#define SNDRV_GM_DATA_ENTRY(cp) (((cp)->control[6]<<7)|((cp)->control[38]))
|
|
#define SNDRV_GM_VOLUME(cp) (((cp)->control[7]<<7)|((cp)->control[39]))
|
|
#define SNDRV_GM_BALANCE(cp) (((cp)->control[8]<<7)|((cp)->control[40]))
|
|
#define SNDRV_GM_PAN(cp) (((cp)->control[10]<<7)|((cp)->control[42]))
|
|
#define SNDRV_GM_EXPRESSION(cp) (((cp)->control[11]<<7)|((cp)->control[43]))
|
|
|
|
|
|
/* MIDI mode */
|
|
#define SNDRV_MIDI_MODE_NONE 0 /* Generic midi */
|
|
#define SNDRV_MIDI_MODE_GM 1
|
|
#define SNDRV_MIDI_MODE_GS 2
|
|
#define SNDRV_MIDI_MODE_XG 3
|
|
#define SNDRV_MIDI_MODE_MT32 4
|
|
|
|
/* MIDI note state */
|
|
#define SNDRV_MIDI_NOTE_OFF 0x00
|
|
#define SNDRV_MIDI_NOTE_ON 0x01
|
|
#define SNDRV_MIDI_NOTE_RELEASED 0x02
|
|
#define SNDRV_MIDI_NOTE_SOSTENUTO 0x04
|
|
|
|
#define SNDRV_MIDI_PARAM_TYPE_REGISTERED 0
|
|
#define SNDRV_MIDI_PARAM_TYPE_NONREGISTERED 1
|
|
|
|
/* SYSEX parse flag */
|
|
enum {
|
|
SNDRV_MIDI_SYSEX_NOT_PARSED = 0,
|
|
SNDRV_MIDI_SYSEX_GM_ON,
|
|
SNDRV_MIDI_SYSEX_GS_ON,
|
|
SNDRV_MIDI_SYSEX_GS_RESET,
|
|
SNDRV_MIDI_SYSEX_GS_CHORUS_MODE,
|
|
SNDRV_MIDI_SYSEX_GS_REVERB_MODE,
|
|
SNDRV_MIDI_SYSEX_GS_MASTER_VOLUME,
|
|
SNDRV_MIDI_SYSEX_GS_PROGRAM,
|
|
SNDRV_MIDI_SYSEX_GS_DRUM_CHANNEL,
|
|
SNDRV_MIDI_SYSEX_XG_ON,
|
|
};
|
|
|
|
/* Prototypes for midi_process.c */
|
|
void snd_midi_process_event(struct snd_midi_op *ops, struct snd_seq_event *ev,
|
|
struct snd_midi_channel_set *chanset);
|
|
void snd_midi_channel_set_clear(struct snd_midi_channel_set *chset);
|
|
struct snd_midi_channel_set *snd_midi_channel_alloc_set(int n);
|
|
void snd_midi_channel_free_set(struct snd_midi_channel_set *chset);
|
|
|
|
#endif /* __SOUND_SEQ_MIDI_EMUL_H */
|