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-rw-r--r--include/sound/seq_virmidi.h84
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diff --git a/include/sound/seq_virmidi.h b/include/sound/seq_virmidi.h
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+#ifndef __SOUND_SEQ_VIRMIDI_H
+#define __SOUND_SEQ_VIRMIDI_H
+
+/*
+ * Virtual Raw MIDI client on Sequencer
+ * Copyright (c) 2000 by Takashi Iwai <tiwai@suse.de>,
+ * Jaroslav Kysela <perex@suse.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 "rawmidi.h"
+#include "seq_midi_event.h"
+
+typedef struct _snd_virmidi_dev snd_virmidi_dev_t;
+
+/*
+ * device file instance:
+ * This instance is created at each time the midi device file is
+ * opened. Each instance has its own input buffer and MIDI parser
+ * (buffer), and is associated with the device instance.
+ */
+typedef struct _snd_virmidi {
+ struct list_head list;
+ int seq_mode;
+ int client;
+ int port;
+ unsigned int trigger: 1;
+ snd_midi_event_t *parser;
+ snd_seq_event_t event;
+ snd_virmidi_dev_t *rdev;
+ snd_rawmidi_substream_t *substream;
+} snd_virmidi_t;
+
+#define SNDRV_VIRMIDI_SUBSCRIBE (1<<0)
+#define SNDRV_VIRMIDI_USE (1<<1)
+
+/*
+ * device record:
+ * Each virtual midi device has one device instance. It contains
+ * common information and the linked-list of opened files,
+ */
+struct _snd_virmidi_dev {
+ snd_card_t *card; /* associated card */
+ snd_rawmidi_t *rmidi; /* rawmidi device */
+ int seq_mode; /* SNDRV_VIRMIDI_XXX */
+ int device; /* sequencer device */
+ int client; /* created/attached client */
+ int port; /* created/attached port */
+ unsigned int flags; /* SNDRV_VIRMIDI_* */
+ rwlock_t filelist_lock;
+ struct list_head filelist;
+};
+
+/* sequencer mode:
+ * ATTACH = input/output events from midi device are routed to the
+ * attached sequencer port. sequencer port is not created
+ * by virmidi itself.
+ * the input to rawmidi must be processed by passing the
+ * incoming events via snd_virmidi_receive()
+ * DISPATCH = input/output events are routed to subscribers.
+ * sequencer port is created in virmidi.
+ */
+#define SNDRV_VIRMIDI_SEQ_NONE 0
+#define SNDRV_VIRMIDI_SEQ_ATTACH 1
+#define SNDRV_VIRMIDI_SEQ_DISPATCH 2
+
+int snd_virmidi_new(snd_card_t *card, int device, snd_rawmidi_t **rrmidi);
+int snd_virmidi_receive(snd_rawmidi_t *rmidi, snd_seq_event_t *ev);
+
+#endif /* __SOUND_SEQ_VIRMIDI */