2019-05-31 01:09:32 -07:00
|
|
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
2009-02-27 20:43:04 -07:00
|
|
|
/*
|
2015-01-20 01:20:50 -07:00
|
|
|
* Line 6 Linux USB driver
|
2009-02-27 20:43:04 -07:00
|
|
|
*
|
2024-10-09 12:42:51 -07:00
|
|
|
* Copyright (C) 2004-2010 Markus Grabner (line6@grabner-graz.at)
|
2009-02-27 20:43:04 -07:00
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef MIDI_H
|
|
|
|
#define MIDI_H
|
|
|
|
|
|
|
|
#include <sound/rawmidi.h>
|
|
|
|
|
|
|
|
#include "midibuf.h"
|
|
|
|
|
|
|
|
#define MIDI_BUFFER_SIZE 1024
|
|
|
|
|
2009-02-27 22:09:55 -07:00
|
|
|
struct snd_line6_midi {
|
2015-01-28 06:43:11 -07:00
|
|
|
/* Pointer back to the Line 6 driver data structure */
|
2009-02-27 20:43:04 -07:00
|
|
|
struct usb_line6 *line6;
|
|
|
|
|
2015-01-28 06:43:11 -07:00
|
|
|
/* MIDI substream for receiving (or NULL if not active) */
|
2009-02-27 20:43:04 -07:00
|
|
|
struct snd_rawmidi_substream *substream_receive;
|
|
|
|
|
2015-01-28 06:43:11 -07:00
|
|
|
/* MIDI substream for transmitting (or NULL if not active) */
|
2009-02-27 20:43:04 -07:00
|
|
|
struct snd_rawmidi_substream *substream_transmit;
|
|
|
|
|
2015-01-28 06:43:11 -07:00
|
|
|
/* Number of currently active MIDI send URBs */
|
2009-02-27 20:43:04 -07:00
|
|
|
int num_active_send_urbs;
|
|
|
|
|
2015-01-28 06:43:11 -07:00
|
|
|
/* Spin lock to protect MIDI buffer handling */
|
2015-01-23 04:39:11 -07:00
|
|
|
spinlock_t lock;
|
2009-02-27 20:43:04 -07:00
|
|
|
|
2015-01-28 06:43:11 -07:00
|
|
|
/* Wait queue for MIDI transmission */
|
2009-02-27 20:43:04 -07:00
|
|
|
wait_queue_head_t send_wait;
|
|
|
|
|
2015-01-28 06:43:11 -07:00
|
|
|
/* Buffer for incoming MIDI stream */
|
2013-01-11 15:08:09 -07:00
|
|
|
struct midi_buffer midibuf_in;
|
2009-02-27 20:43:04 -07:00
|
|
|
|
2015-01-28 06:43:11 -07:00
|
|
|
/* Buffer for outgoing MIDI stream */
|
2013-01-11 15:08:09 -07:00
|
|
|
struct midi_buffer midibuf_out;
|
2009-02-27 20:43:04 -07:00
|
|
|
};
|
|
|
|
|
|
|
|
extern int line6_init_midi(struct usb_line6 *line6);
|
2009-02-27 22:09:55 -07:00
|
|
|
extern void line6_midi_receive(struct usb_line6 *line6, unsigned char *data,
|
|
|
|
int length);
|
2009-02-27 20:43:04 -07:00
|
|
|
|
|
|
|
#endif
|