sound/usb/6fire/midi.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Linux driver for TerraTec DMX 6Fire USB
   4  *
   5  * Author:      Torsten Schenk <torsten.schenk@zoho.com>
   6  * Created:     Jan 01, 2011
   7  * Copyright:   (C) Torsten Schenk
   8  */
   9
  10 #ifndef USB6FIRE_MIDI_H
  11 #define USB6FIRE_MIDI_H
  12
  13 #include "common.h"
  14
  15 struct midi_runtime {
  16         struct sfire_chip *chip;
  17         struct snd_rawmidi *instance;
  18
  19         struct snd_rawmidi_substream *in;
  20         char in_active;
  21
  22         spinlock_t in_lock;
  23         spinlock_t out_lock;
  24         struct snd_rawmidi_substream *out;
  25         struct urb out_urb;
  26         u8 out_serial; /* serial number of out packet */
  27         u8 *out_buffer;
  28         int buffer_offset;
  29
  30         void (*in_received)(struct midi_runtime *rt, u8 *data, int length);
  31 };
  32
  33 int usb6fire_midi_init(struct sfire_chip *chip);
  34 void usb6fire_midi_abort(struct sfire_chip *chip);
  35 void usb6fire_midi_destroy(struct sfire_chip *chip);
  36 #endif /* USB6FIRE_MIDI_H */
  37