Initial import

1 files changed, 86 insertions, 0 deletions

diff --git a/include/sound/asequencer.h b/include/sound/asequencer.h
new file mode 100644
index 000000000..75935ce73
--- /dev/null
+++ b/include/sound/asequencer.h
@@ -0,0 +1,86 @@
+/*
+ *  Main header file for the ALSA sequencer
+ *  Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
+ *            (c) 1998-1999 by 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
+ *
+ */
+#ifndef __SOUND_ASEQUENCER_H
+#define __SOUND_ASEQUENCER_H
+
+#include <linux/ioctl.h>
+#include <sound/asound.h>
+#include <uapi/sound/asequencer.h>
+
+/* helper macro */
+#define snd_seq_event_bounce_ext_data(ev) ((void*)((char *)(ev)->data.ext.ptr + sizeof(struct snd_seq_event_bounce)))
+
+/*
+ * type check macros
+ */
+/* result events: 0-4 */
+#define snd_seq_ev_is_result_type(ev)	((ev)->type < 5)
+/* channel specific events: 5-19 */
+#define snd_seq_ev_is_channel_type(ev)	((ev)->type >= 5 && (ev)->type < 20)
+/* note events: 5-9 */
+#define snd_seq_ev_is_note_type(ev)	((ev)->type >= 5 && (ev)->type < 10)
+/* control events: 10-19 */
+#define snd_seq_ev_is_control_type(ev)	((ev)->type >= 10 && (ev)->type < 20)
+/* queue control events: 30-39 */
+#define snd_seq_ev_is_queue_type(ev)	((ev)->type >= 30 && (ev)->type < 40)
+/* system status messages */
+#define snd_seq_ev_is_message_type(ev)	((ev)->type >= 60 && (ev)->type < 69)
+/* sample messages */
+#define snd_seq_ev_is_sample_type(ev)	((ev)->type >= 70 && (ev)->type < 79)
+/* user-defined messages */
+#define snd_seq_ev_is_user_type(ev)	((ev)->type >= 90 && (ev)->type < 99)
+/* fixed length events: 0-99 */
+#define snd_seq_ev_is_fixed_type(ev)	((ev)->type < 100)
+/* variable length events: 130-139 */
+#define snd_seq_ev_is_variable_type(ev)	((ev)->type >= 130 && (ev)->type < 140)
+/* reserved for kernel */
+#define snd_seq_ev_is_reserved(ev)	((ev)->type >= 150)
+
+/* direct dispatched events */
+#define snd_seq_ev_is_direct(ev)	((ev)->queue == SNDRV_SEQ_QUEUE_DIRECT)
+
+/*
+ * macros to check event flags
+ */
+/* prior events */
+#define snd_seq_ev_is_prior(ev)		(((ev)->flags & SNDRV_SEQ_PRIORITY_MASK) == SNDRV_SEQ_PRIORITY_HIGH)
+
+/* event length type */
+#define snd_seq_ev_length_type(ev)	((ev)->flags & SNDRV_SEQ_EVENT_LENGTH_MASK)
+#define snd_seq_ev_is_fixed(ev)		(snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_FIXED)
+#define snd_seq_ev_is_variable(ev)	(snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARIABLE)
+#define snd_seq_ev_is_varusr(ev)	(snd_seq_ev_length_type(ev) == SNDRV_SEQ_EVENT_LENGTH_VARUSR)
+
+/* time-stamp type */
+#define snd_seq_ev_timestamp_type(ev)	((ev)->flags & SNDRV_SEQ_TIME_STAMP_MASK)
+#define snd_seq_ev_is_tick(ev)		(snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_TICK)
+#define snd_seq_ev_is_real(ev)		(snd_seq_ev_timestamp_type(ev) == SNDRV_SEQ_TIME_STAMP_REAL)
+
+/* time-mode type */
+#define snd_seq_ev_timemode_type(ev)	((ev)->flags & SNDRV_SEQ_TIME_MODE_MASK)
+#define snd_seq_ev_is_abstime(ev)	(snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_ABS)
+#define snd_seq_ev_is_reltime(ev)	(snd_seq_ev_timemode_type(ev) == SNDRV_SEQ_TIME_MODE_REL)
+
+/* queue sync port */
+#define snd_seq_queue_sync_port(q)	((q) + 16)
+
+#endif /* __SOUND_ASEQUENCER_H */