forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
1.1 KiB
47 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
|
/* |
|
* Line 6 Linux USB driver |
|
* |
|
* Copyright (C) 2004-2010 Markus Grabner ([email protected]) |
|
*/ |
|
|
|
#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
|
|
|