[alsa-devel] [PATCH 1/7] ASoC: soc-pcm: add snd_soc_runtime_action()

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

ALSA SoC has snd_soc_runtime_activate() / snd_soc_runtime_deactivate().
These increment or decrement DAI/Component activity, but the difference
is only +1 or -1.
This patch adds common snd_soc_runtime_action() which can get +1 or -1 as
parameter, and use it from snd_soc_runtime_activate/deactivate() to
avoid duplicate implementation.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
 sound/soc/soc-pcm.c | 67 +++++++++++++++++++++--------------------------------
 1 file changed, 26 insertions(+), 41 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index e66ac9c..8bc6983 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -82,17 +82,8 @@ static int soc_rtd_trigger(struct snd_soc_pcm_runtime *rtd,
 	return 0;
 }
 
-/**
- * snd_soc_runtime_activate() - Increment active count for PCM runtime components
- * @rtd: ASoC PCM runtime that is activated
- * @stream: Direction of the PCM stream
- *
- * Increments the active count for all the DAIs and components attached to a PCM
- * runtime. Should typically be called when a stream is opened.
- *
- * Must be called with the rtd->card->pcm_mutex being held
- */
-void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream)
+static void snd_soc_runtime_action(struct snd_soc_pcm_runtime *rtd,
+				   int stream, int action)
 {
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	struct snd_soc_dai *codec_dai;
@@ -101,24 +92,39 @@ void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream)
 	lockdep_assert_held(&rtd->card->pcm_mutex);
 
 	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		cpu_dai->playback_active++;
+		cpu_dai->playback_active += action;
 		for_each_rtd_codec_dai(rtd, i, codec_dai)
-			codec_dai->playback_active++;
+			codec_dai->playback_active += action;
 	} else {
-		cpu_dai->capture_active++;
+		cpu_dai->capture_active += action;
 		for_each_rtd_codec_dai(rtd, i, codec_dai)
-			codec_dai->capture_active++;
+			codec_dai->capture_active += action;
 	}
 
-	cpu_dai->active++;
-	cpu_dai->component->active++;
+	cpu_dai->active += action;
+	cpu_dai->component->active += action;
 	for_each_rtd_codec_dai(rtd, i, codec_dai) {
-		codec_dai->active++;
-		codec_dai->component->active++;
+		codec_dai->active += action;
+		codec_dai->component->active += action;
 	}
 }
 
 /**
+ * snd_soc_runtime_activate() - Increment active count for PCM runtime components
+ * @rtd: ASoC PCM runtime that is activated
+ * @stream: Direction of the PCM stream
+ *
+ * Increments the active count for all the DAIs and components attached to a PCM
+ * runtime. Should typically be called when a stream is opened.
+ *
+ * Must be called with the rtd->card->pcm_mutex being held
+ */
+void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream)
+{
+	snd_soc_runtime_action(rtd, stream, 1);
+}
+
+/**
  * snd_soc_runtime_deactivate() - Decrement active count for PCM runtime components
  * @rtd: ASoC PCM runtime that is deactivated
  * @stream: Direction of the PCM stream
@@ -130,28 +136,7 @@ void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream)
  */
 void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream)
 {
-	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-	struct snd_soc_dai *codec_dai;
-	int i;
-
-	lockdep_assert_held(&rtd->card->pcm_mutex);
-
-	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		cpu_dai->playback_active--;
-		for_each_rtd_codec_dai(rtd, i, codec_dai)
-			codec_dai->playback_active--;
-	} else {
-		cpu_dai->capture_active--;
-		for_each_rtd_codec_dai(rtd, i, codec_dai)
-			codec_dai->capture_active--;
-	}
-
-	cpu_dai->active--;
-	cpu_dai->component->active--;
-	for_each_rtd_codec_dai(rtd, i, codec_dai) {
-		codec_dai->component->active--;
-		codec_dai->active--;
-	}
+	snd_soc_runtime_action(rtd, stream, -1);
 }
 
 /**
-- 
2.7.4