sound/usb/6fire/midi.h

   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