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  * Version:     0.3.0
   7  * Copyright:   (C) Torsten Schenk
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  */
  14
  15 #ifndef USB6FIRE_MIDI_H
  16 #define USB6FIRE_MIDI_H
  17
  18 #include "common.h"
  19
  20 enum {
  21         MIDI_BUFSIZE = 64
  22 };
  23
  24 struct midi_runtime {
  25         struct sfire_chip *chip;
  26         struct snd_rawmidi *instance;
  27
  28         struct snd_rawmidi_substream *in;
  29         char in_active;
  30
  31         spinlock_t in_lock;
  32         spinlock_t out_lock;
  33         struct snd_rawmidi_substream *out;
  34         struct urb out_urb;
  35         u8 out_serial; /* serial number of out packet */
  36         u8 out_buffer[MIDI_BUFSIZE];
  37         int buffer_offset;
  38
  39         void (*in_received)(struct midi_runtime *rt, u8 *data, int length);
  40 };
  41
  42 int __devinit usb6fire_midi_init(struct sfire_chip *chip);
  43 void usb6fire_midi_abort(struct sfire_chip *chip);
  44 void usb6fire_midi_destroy(struct sfire_chip *chip);
  45 #endif /* USB6FIRE_MIDI_H */
  46