Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/include/sound/seq_midi_event.h b/include/sound/seq_midi_event.h
new file mode 100644
index 000000000..2f135bccf
--- /dev/null
+++ b/include/sound/seq_midi_event.h
@@ -0,0 +1,52 @@
+#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>
+ *
+ *   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 <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 */