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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /include/sound/seq_midi_event.h
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/sound/seq_midi_event.h')
-rw-r--r--include/sound/seq_midi_event.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/include/sound/seq_midi_event.h b/include/sound/seq_midi_event.h
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+++ b/include/sound/seq_midi_event.h
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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 <tiwai@suse.de>,
+ * Jaroslav Kysela <perex@perex.cz>
+ */
+
+#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 */