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kernel/linux-imx6_3.14.28/sound/usb/6fire/midi.h 1.04 KB
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  /*
   * Linux driver for TerraTec DMX 6Fire USB
   *
   * Author:	Torsten Schenk <torsten.schenk@zoho.com>
   * Created:	Jan 01, 2011
   * Copyright:	(C) Torsten Schenk
   *
   * 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.
   */
  
  #ifndef USB6FIRE_MIDI_H
  #define USB6FIRE_MIDI_H
  
  #include "common.h"
  
  struct midi_runtime {
  	struct sfire_chip *chip;
  	struct snd_rawmidi *instance;
  
  	struct snd_rawmidi_substream *in;
  	char in_active;
  
  	spinlock_t in_lock;
  	spinlock_t out_lock;
  	struct snd_rawmidi_substream *out;
  	struct urb out_urb;
  	u8 out_serial; /* serial number of out packet */
  	u8 *out_buffer;
  	int buffer_offset;
  
  	void (*in_received)(struct midi_runtime *rt, u8 *data, int length);
  };
  
  int usb6fire_midi_init(struct sfire_chip *chip);
  void usb6fire_midi_abort(struct sfire_chip *chip);
  void usb6fire_midi_destroy(struct sfire_chip *chip);
  #endif /* USB6FIRE_MIDI_H */