71 lines
2.2 KiB
Diff
71 lines
2.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Jeeja KP <jeeja.kp@intel.com>
|
|
Date: Wed, 16 Sep 2015 01:56:54 +0530
|
|
Subject: [PATCH] ASoC: core: Adds support for DSP loopback dai link
|
|
|
|
Only codec-codec dai link is supported. This patch adds support
|
|
for dsp loopback dai link
|
|
|
|
Change-Id: I6163e5e572116aeac026ee1815708f7342ae1e3f
|
|
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
|
|
---
|
|
include/sound/soc.h | 3 +++
|
|
sound/soc/soc-core.c | 20 ++++++++++++++++----
|
|
2 files changed, 19 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/include/sound/soc.h b/include/sound/soc.h
|
|
index 88aa48e5485f..d26d1d188b81 100644
|
|
--- a/include/sound/soc.h
|
|
+++ b/include/sound/soc.h
|
|
@@ -920,6 +920,9 @@ struct snd_soc_dai_link {
|
|
const struct snd_soc_pcm_stream *params;
|
|
unsigned int num_params;
|
|
|
|
+ /* flag to create dsp loopback link */
|
|
+ unsigned int dsp_loopback:1;
|
|
+
|
|
unsigned int dai_fmt; /* format to set on init */
|
|
|
|
enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */
|
|
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
|
|
index 39056ff80dc9..f4d344cd2834 100644
|
|
--- a/sound/soc/soc-core.c
|
|
+++ b/sound/soc/soc-core.c
|
|
@@ -1444,8 +1444,14 @@ static int soc_link_dai_widgets(struct snd_soc_card *card,
|
|
dev_warn(card->dev, "ASoC: Multiple codecs not supported yet\n");
|
|
|
|
/* link the DAI widgets */
|
|
- sink = codec_dai->playback_widget;
|
|
- source = cpu_dai->capture_widget;
|
|
+ if (!dai_link->dsp_loopback) {
|
|
+ sink = codec_dai->playback_widget;
|
|
+ source = cpu_dai->capture_widget;
|
|
+ } else {
|
|
+ sink = codec_dai->playback_widget;
|
|
+ source = cpu_dai->playback_widget;
|
|
+ }
|
|
+
|
|
if (sink && source) {
|
|
ret = snd_soc_dapm_new_pcm(card, rtd, dai_link->params,
|
|
dai_link->num_params,
|
|
@@ -1457,8 +1463,14 @@ static int soc_link_dai_widgets(struct snd_soc_card *card,
|
|
}
|
|
}
|
|
|
|
- sink = cpu_dai->playback_widget;
|
|
- source = codec_dai->capture_widget;
|
|
+ if (!dai_link->dsp_loopback) {
|
|
+ sink = cpu_dai->playback_widget;
|
|
+ source = codec_dai->capture_widget;
|
|
+ } else {
|
|
+ sink = cpu_dai->capture_widget;
|
|
+ source = codec_dai->capture_widget;
|
|
+ }
|
|
+
|
|
if (sink && source) {
|
|
ret = snd_soc_dapm_new_pcm(card, rtd, dai_link->params,
|
|
dai_link->num_params,
|
|
--
|
|
https://clearlinux.org
|
|
|