xref: /openbmc/linux/sound/usb/6fire/midi.h (revision db181ce0)
1 /*
2  * Linux driver for TerraTec DMX 6Fire USB
3  *
4  * Author:	Torsten Schenk <torsten.schenk@zoho.com>
5  * Created:	Jan 01, 2011
6  * Copyright:	(C) Torsten Schenk
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  */
13 
14 #ifndef USB6FIRE_MIDI_H
15 #define USB6FIRE_MIDI_H
16 
17 #include "common.h"
18 
19 struct midi_runtime {
20 	struct sfire_chip *chip;
21 	struct snd_rawmidi *instance;
22 
23 	struct snd_rawmidi_substream *in;
24 	char in_active;
25 
26 	spinlock_t in_lock;
27 	spinlock_t out_lock;
28 	struct snd_rawmidi_substream *out;
29 	struct urb out_urb;
30 	u8 out_serial; /* serial number of out packet */
31 	u8 *out_buffer;
32 	int buffer_offset;
33 
34 	void (*in_received)(struct midi_runtime *rt, u8 *data, int length);
35 };
36 
37 int usb6fire_midi_init(struct sfire_chip *chip);
38 void usb6fire_midi_abort(struct sfire_chip *chip);
39 void usb6fire_midi_destroy(struct sfire_chip *chip);
40 #endif /* USB6FIRE_MIDI_H */
41 
42