LXR linux/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
  15struct 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
  33int usb6fire_midi_init(struct sfire_chip *chip);
  34void usb6fire_midi_abort(struct sfire_chip *chip);
  35void usb6fire_midi_destroy(struct sfire_chip *chip);
  36#endif /* USB6FIRE_MIDI_H */
  37
  38