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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- #ifndef __SOUND_SEQ_MIDI_EVENT_H
- #define __SOUND_SEQ_MIDI_EVENT_H
- /*
- * MIDI byte <-> sequencer event coder
- *
- * Copyright (C) 1998,99 Takashi Iwai <[email protected]>,
- * Jaroslav Kysela <[email protected]>
- */
- #include <sound/asequencer.h>
- #define MAX_MIDI_EVENT_BUF 256
- /* midi status */
- struct snd_midi_event {
- int qlen; /* queue length */
- int read; /* chars read */
- int type; /* current event type */
- unsigned char lastcmd; /* last command (for MIDI state handling) */
- unsigned char nostat; /* no state flag */
- int bufsize; /* allocated buffer size */
- unsigned char *buf; /* input buffer */
- spinlock_t lock;
- };
- int snd_midi_event_new(int bufsize, struct snd_midi_event **rdev);
- void snd_midi_event_free(struct snd_midi_event *dev);
- void snd_midi_event_reset_encode(struct snd_midi_event *dev);
- void snd_midi_event_reset_decode(struct snd_midi_event *dev);
- void snd_midi_event_no_status(struct snd_midi_event *dev, int on);
- bool snd_midi_event_encode_byte(struct snd_midi_event *dev, unsigned char c,
- struct snd_seq_event *ev);
- /* decode from event to bytes - return number of written bytes if success */
- long snd_midi_event_decode(struct snd_midi_event *dev, unsigned char *buf, long count,
- struct snd_seq_event *ev);
- #endif /* __SOUND_SEQ_MIDI_EVENT_H */
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