Merge branch 'omap-pool'

[linux-2.6-omap-h63xx.git] / drivers / staging / line6 / midi.h

diff --git a/drivers/staging/line6/midi.h b/drivers/staging/line6/midi.h
new file mode 100644 (file)
index 0000000..c69fd11
--- /dev/null
+++ b/drivers/staging/line6/midi.h
@@ -0,0 +1,87 @@
+/*
+ * Line6 Linux USB driver - 0.8.0
+ *
+ * Copyright (C) 2004-2009 Markus Grabner (grabner@icg.tugraz.at)
+ *
+ *     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, version 2.
+ *
+ */
+
+#ifndef MIDI_H
+#define MIDI_H
+
+
+#include <sound/rawmidi.h>
+
+#include "midibuf.h"
+
+
+#define MIDI_BUFFER_SIZE 1024
+
+
+struct snd_line6_midi {
+       /**
+                Pointer back to the Line6 driver data structure.
+       */
+       struct usb_line6 *line6;
+
+       /**
+                MIDI substream for receiving (or NULL if not active).
+       */
+       struct snd_rawmidi_substream *substream_receive;
+
+       /**
+                MIDI substream for transmitting (or NULL if not active).
+       */
+       struct snd_rawmidi_substream *substream_transmit;
+
+       /**
+                Number of currently active MIDI send URBs.
+       */
+       int num_active_send_urbs;
+
+       /**
+                Spin lock to protect updates of send_urb.
+       */
+       spinlock_t send_urb_lock;
+
+       /**
+                Spin lock to protect MIDI buffer handling.
+       */
+       spinlock_t midi_transmit_lock;
+
+       /**
+                Wait queue for MIDI transmission.
+       */
+       wait_queue_head_t send_wait;
+
+       /**
+                Bit mask for output MIDI channels.
+       */
+       int midi_mask_transmit;
+
+       /**
+                Bit mask for input MIDI channels.
+       */
+       int midi_mask_receive;
+
+       /**
+                Buffer for incoming MIDI stream.
+       */
+       struct MidiBuffer midibuf_in;
+
+       /**
+                Buffer for outgoing MIDI stream.
+       */
+       struct MidiBuffer midibuf_out;
+};
+
+
+extern int line6_init_midi(struct usb_line6 *line6);
+extern void line6_midi_receive(struct usb_line6 *line6, unsigned char *data,
+                              int length);
+
+
+#endif