Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 1 | /* |
Chris Rorvick | c078a4a | 2015-01-20 02:20:50 -0600 | [diff] [blame] | 2 | * Line 6 Linux USB driver |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 3 | * |
Markus Grabner | 1027f476 | 2010-08-12 01:35:30 +0200 | [diff] [blame] | 4 | * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License as |
| 8 | * published by the Free Software Foundation, version 2. |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | #ifndef MIDI_H |
| 13 | #define MIDI_H |
| 14 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 15 | #include <sound/rawmidi.h> |
| 16 | |
| 17 | #include "midibuf.h" |
| 18 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 19 | #define MIDI_BUFFER_SIZE 1024 |
| 20 | |
Greg Kroah-Hartman | a49e483 | 2009-02-27 21:09:55 -0800 | [diff] [blame] | 21 | struct snd_line6_midi { |
Takashi Iwai | cddbd4f | 2015-01-28 14:43:11 +0100 | [diff] [blame] | 22 | /* Pointer back to the Line 6 driver data structure */ |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 23 | struct usb_line6 *line6; |
| 24 | |
Takashi Iwai | cddbd4f | 2015-01-28 14:43:11 +0100 | [diff] [blame] | 25 | /* MIDI substream for receiving (or NULL if not active) */ |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 26 | struct snd_rawmidi_substream *substream_receive; |
| 27 | |
Takashi Iwai | cddbd4f | 2015-01-28 14:43:11 +0100 | [diff] [blame] | 28 | /* MIDI substream for transmitting (or NULL if not active) */ |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 29 | struct snd_rawmidi_substream *substream_transmit; |
| 30 | |
Takashi Iwai | cddbd4f | 2015-01-28 14:43:11 +0100 | [diff] [blame] | 31 | /* Number of currently active MIDI send URBs */ |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 32 | int num_active_send_urbs; |
| 33 | |
Takashi Iwai | cddbd4f | 2015-01-28 14:43:11 +0100 | [diff] [blame] | 34 | /* Spin lock to protect MIDI buffer handling */ |
Takashi Iwai | bc518ba | 2015-01-23 12:39:11 +0100 | [diff] [blame] | 35 | spinlock_t lock; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 36 | |
Takashi Iwai | cddbd4f | 2015-01-28 14:43:11 +0100 | [diff] [blame] | 37 | /* Wait queue for MIDI transmission */ |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 38 | wait_queue_head_t send_wait; |
| 39 | |
Takashi Iwai | cddbd4f | 2015-01-28 14:43:11 +0100 | [diff] [blame] | 40 | /* Buffer for incoming MIDI stream */ |
Stefan Hajnoczi | 269edc8 | 2013-01-11 23:08:09 +0100 | [diff] [blame] | 41 | struct midi_buffer midibuf_in; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 42 | |
Takashi Iwai | cddbd4f | 2015-01-28 14:43:11 +0100 | [diff] [blame] | 43 | /* Buffer for outgoing MIDI stream */ |
Stefan Hajnoczi | 269edc8 | 2013-01-11 23:08:09 +0100 | [diff] [blame] | 44 | struct midi_buffer midibuf_out; |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 45 | }; |
| 46 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 47 | extern int line6_init_midi(struct usb_line6 *line6); |
Greg Kroah-Hartman | a49e483 | 2009-02-27 21:09:55 -0800 | [diff] [blame] | 48 | extern void line6_midi_receive(struct usb_line6 *line6, unsigned char *data, |
| 49 | int length); |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 50 | |
Markus Grabner | 705ecec | 2009-02-27 19:43:04 -0800 | [diff] [blame] | 51 | #endif |