Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef __SOUND_SEQ_MIDI_EVENT_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define __SOUND_SEQ_MIDI_EVENT_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *  MIDI byte <-> sequencer event coder
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *  Copyright (C) 1998,99 Takashi Iwai <tiwai@suse.de>,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  *                        Jaroslav Kysela <perex@perex.cz>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <sound/asequencer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #define MAX_MIDI_EVENT_BUF	256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) /* midi status */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) struct snd_midi_event {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	int qlen;		/* queue length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	int read;		/* chars read */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	int type;		/* current event type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	unsigned char lastcmd;	/* last command (for MIDI state handling) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	unsigned char nostat;	/* no state flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	int bufsize;		/* allocated buffer size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	unsigned char *buf;	/* input buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) int snd_midi_event_new(int bufsize, struct snd_midi_event **rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) void snd_midi_event_free(struct snd_midi_event *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) void snd_midi_event_reset_encode(struct snd_midi_event *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) void snd_midi_event_reset_decode(struct snd_midi_event *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) void snd_midi_event_no_status(struct snd_midi_event *dev, int on);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) bool snd_midi_event_encode_byte(struct snd_midi_event *dev, unsigned char c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 				struct snd_seq_event *ev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /* decode from event to bytes - return number of written bytes if success */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) long snd_midi_event_decode(struct snd_midi_event *dev, unsigned char *buf, long count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 			   struct snd_seq_event *ev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #endif /* __SOUND_SEQ_MIDI_EVENT_H */