mirror of
https://github.com/brain-hackers/linux-brain.git
synced 2024-06-09 23:36:23 +09:00
a10e763b87
Based on 1 normalized pattern(s): 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 version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 135 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081036.435762997@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Line 6 Linux USB driver
|
|
*
|
|
* Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
|
|
*/
|
|
|
|
#ifndef MIDI_H
|
|
#define MIDI_H
|
|
|
|
#include <sound/rawmidi.h>
|
|
|
|
#include "midibuf.h"
|
|
|
|
#define MIDI_BUFFER_SIZE 1024
|
|
|
|
struct snd_line6_midi {
|
|
/* Pointer back to the Line 6 driver data structure */
|
|
struct usb_line6 *line6;
|
|
|
|
/* MIDI substream for receiving (or NULL if not active) */
|
|
struct snd_rawmidi_substream *substream_receive;
|
|
|
|
/* MIDI substream for transmitting (or NULL if not active) */
|
|
struct snd_rawmidi_substream *substream_transmit;
|
|
|
|
/* Number of currently active MIDI send URBs */
|
|
int num_active_send_urbs;
|
|
|
|
/* Spin lock to protect MIDI buffer handling */
|
|
spinlock_t lock;
|
|
|
|
/* Wait queue for MIDI transmission */
|
|
wait_queue_head_t send_wait;
|
|
|
|
/* Buffer for incoming MIDI stream */
|
|
struct midi_buffer midibuf_in;
|
|
|
|
/* Buffer for outgoing MIDI stream */
|
|
struct midi_buffer midibuf_out;
|
|
};
|
|
|
|
extern int line6_init_midi(struct usb_line6 *line6);
|
|
extern void line6_midi_receive(struct usb_line6 *line6, unsigned char *data,
|
|
int length);
|
|
|
|
#endif
|