Commit | Line | Data |
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705ececd | 1 | /* |
e1a164d7 | 2 | * Line6 Linux USB driver - 0.9.1beta |
705ececd | 3 | * |
1027f476 | 4 | * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at) |
705ececd MG |
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 PLAYBACK_H | |
13 | #define PLAYBACK_H | |
14 | ||
705ececd MG |
15 | #include <sound/pcm.h> |
16 | ||
1027f476 | 17 | #include "driver.h" |
705ececd | 18 | |
1027f476 | 19 | /* |
027360c5 GKH |
20 | * When the TonePort is used with jack in full duplex mode and the outputs are |
21 | * not connected, the software monitor produces an ugly noise since everything | |
22 | * written to the output buffer (i.e., the input signal) will be repeated in | |
23 | * the next period (sounds like a delay effect). As a workaround, the output | |
24 | * buffer is cleared after the data have been read, but there must be a better | |
25 | * solution. Until one is found, this workaround can be used to fix the | |
26 | * problem. | |
27 | */ | |
1027f476 | 28 | #define USE_CLEAR_BUFFER_WORKAROUND 1 |
705ececd | 29 | |
1027f476 | 30 | extern struct snd_pcm_ops snd_line6_playback_ops; |
705ececd | 31 | |
1027f476 | 32 | extern int line6_create_audio_out_urbs(struct snd_line6_pcm *line6pcm); |
6b02a17e | 33 | extern void line6_free_playback_buffer(struct snd_line6_pcm *line6pcm); |
1027f476 MG |
34 | extern int line6_submit_audio_out_all_urbs(struct snd_line6_pcm *line6pcm); |
35 | extern void line6_unlink_audio_out_urbs(struct snd_line6_pcm *line6pcm); | |
36 | extern void line6_unlink_wait_clear_audio_out_urbs(struct snd_line6_pcm | |
37 | *line6pcm); | |
0ca54888 | 38 | extern void line6_wait_clear_audio_out_urbs(struct snd_line6_pcm *line6pcm); |
1027f476 | 39 | extern int snd_line6_playback_trigger(struct snd_line6_pcm *line6pcm, int cmd); |
705ececd MG |
40 | |
41 | #endif |