[PATCH v2 0/3] ASoC: soc-pcm: cleanup code

[PATCH v2 0/3] ASoC: soc-pcm: cleanup code

[Kuninori Morimoto]

Hi Mark

These are v2 of soc-pcm cleanup code.
v1 had 6 patches, but I separated into 2 parts.
This is 1st part of it.

Link: https://lore.kernel.org/r/87360c99kb.wl-kuninori.morimoto.gx@renesas.com

Kuninori Morimoto (3):
  ASoC: soc-pcm: move dpcm_set_fe_update_state()
  ASoC: soc-pcm: add dpcm_set_be_update_state()
  ASoC: soc-pcm: add soc_pcm_set_dai_params()

 sound/soc/soc-pcm.c | 110 +++++++++++++++++++++++---------------------
 1 file changed, 58 insertions(+), 52 deletions(-)

-- 
2.25.1

[PATCH 1/3] ASoC: soc-pcm: move dpcm_set_fe_update_state()

[Kuninori Morimoto]

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

This patch moves dpcm_set_fe_update_state() to top side.
This is prepare for cleanup soc-pcm.c

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 sound/soc/soc-pcm.c | 45 ++++++++++++++++++++++-----------------------
 1 file changed, 22 insertions(+), 23 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index a253c9f918e1..1cc8d0b6ec3d 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -203,6 +203,28 @@ static inline void dpcm_remove_debugfs_state(struct snd_soc_dpcm *dpcm)
 }
 #endif
 
+/* Set FE's runtime_update state; the state is protected via PCM stream lock
+ * for avoiding the race with trigger callback.
+ * If the state is unset and a trigger is pending while the previous operation,
+ * process the pending trigger action here.
+ */
+static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd);
+static void dpcm_set_fe_update_state(struct snd_soc_pcm_runtime *fe,
+				     int stream, enum snd_soc_dpcm_update state)
+{
+	struct snd_pcm_substream *substream =
+		snd_soc_dpcm_get_substream(fe, stream);
+
+	snd_pcm_stream_lock_irq(substream);
+	if (state == SND_SOC_DPCM_UPDATE_NO && fe->dpcm[stream].trigger_pending) {
+		dpcm_fe_dai_do_trigger(substream,
+				       fe->dpcm[stream].trigger_pending - 1);
+		fe->dpcm[stream].trigger_pending = 0;
+	}
+	fe->dpcm[stream].runtime_update = state;
+	snd_pcm_stream_unlock_irq(substream);
+}
+
 /**
  * snd_soc_runtime_action() - Increment/Decrement active count for
  * PCM runtime components
@@ -1710,29 +1732,6 @@ static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream)
 				&runtime->hw.rate_min, &runtime->hw.rate_max);
 }
 
-static int dpcm_fe_dai_do_trigger(struct snd_pcm_substream *substream, int cmd);
-
-/* Set FE's runtime_update state; the state is protected via PCM stream lock
- * for avoiding the race with trigger callback.
- * If the state is unset and a trigger is pending while the previous operation,
- * process the pending trigger action here.
- */
-static void dpcm_set_fe_update_state(struct snd_soc_pcm_runtime *fe,
-				     int stream, enum snd_soc_dpcm_update state)
-{
-	struct snd_pcm_substream *substream =
-		snd_soc_dpcm_get_substream(fe, stream);
-
-	snd_pcm_stream_lock_irq(substream);
-	if (state == SND_SOC_DPCM_UPDATE_NO && fe->dpcm[stream].trigger_pending) {
-		dpcm_fe_dai_do_trigger(substream,
-				       fe->dpcm[stream].trigger_pending - 1);
-		fe->dpcm[stream].trigger_pending = 0;
-	}
-	fe->dpcm[stream].runtime_update = state;
-	snd_pcm_stream_unlock_irq(substream);
-}
-
 static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream,
 			       int stream)
 {
-- 
2.25.1

[PATCH 2/3] ASoC: soc-pcm: add dpcm_set_be_update_state()

[Kuninori Morimoto]

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

soc-pcm has dpcm_set_fe_update_state() to update FE's runtime_update
(except dpcm_fe_dai_do_trigger() which needs to update it without it).
OTOH, it doesn't have BE's update function.

	O: dpcm_set_fe_update_state()
	X: dpcm_set_be_update_state()

This patch add BE's dpcm_set_fe_update_state()

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 sound/soc/soc-pcm.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 1cc8d0b6ec3d..54b460f08373 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -225,6 +225,12 @@ static void dpcm_set_fe_update_state(struct snd_soc_pcm_runtime *fe,
 	snd_pcm_stream_unlock_irq(substream);
 }
 
+static void dpcm_set_be_update_state(struct snd_soc_pcm_runtime *be,
+				     int stream, enum snd_soc_dpcm_update state)
+{
+	be->dpcm[stream].runtime_update = state;
+}
+
 /**
  * snd_soc_runtime_action() - Increment/Decrement active count for
  * PCM runtime components
@@ -1357,7 +1363,7 @@ static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream,
 			stream ? "capture" : "playback",
 			dpcm->be->dai_link->name, fe->dai_link->name);
 		dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
-		dpcm->be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE;
+		dpcm_set_be_update_state(dpcm->be, stream, SND_SOC_DPCM_UPDATE_BE);
 		prune++;
 	}
 
@@ -1412,7 +1418,7 @@ static int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream,
 			continue;
 
 		/* new */
-		be->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_BE;
+		dpcm_set_be_update_state(be, stream, SND_SOC_DPCM_UPDATE_BE);
 		new++;
 	}
 
@@ -1440,8 +1446,7 @@ void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream)
 
 	spin_lock_irqsave(&fe->card->dpcm_lock, flags);
 	for_each_dpcm_be(fe, stream, dpcm)
-		dpcm->be->dpcm[stream].runtime_update =
-						SND_SOC_DPCM_UPDATE_NO;
+		dpcm_set_be_update_state(dpcm->be, stream, SND_SOC_DPCM_UPDATE_NO);
 	spin_unlock_irqrestore(&fe->card->dpcm_lock, flags);
 }
 
-- 
2.25.1

[PATCH 3/3] ASoC: soc-pcm: add soc_pcm_set_dai_params()

[Kuninori Morimoto]

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

Getting rate/channels/sample_bits from param needs fixed method.
This patch adds new soc_pcm_set_dai_params() and replace existing code.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 sound/soc/soc-pcm.c | 52 +++++++++++++++++++++++----------------------
 1 file changed, 27 insertions(+), 25 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 54b460f08373..6e9f14d482ab 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -329,6 +329,20 @@ int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir,
 	return 0;
 }
 
+static void soc_pcm_set_dai_params(struct snd_soc_dai *dai,
+				   struct snd_pcm_hw_params *params)
+{
+	if (params) {
+		dai->rate	 = params_rate(params);
+		dai->channels	 = params_channels(params);
+		dai->sample_bits = snd_pcm_format_physical_width(params_format(params));
+	} else {
+		dai->rate	 = 0;
+		dai->channels	 = 0;
+		dai->sample_bits = 0;
+	}
+}
+
 static int soc_pcm_apply_symmetry(struct snd_pcm_substream *substream,
 					struct snd_soc_dai *soc_dai)
 {
@@ -390,13 +404,12 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
 				struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai d;
 	struct snd_soc_dai *dai;
 	struct snd_soc_dai *cpu_dai;
-	unsigned int rate, channels, sample_bits, symmetry, i;
+	unsigned int symmetry, i;
 
-	rate = params_rate(params);
-	channels = params_channels(params);
-	sample_bits = snd_pcm_format_physical_width(params_format(params));
+	soc_pcm_set_dai_params(&d, params);
 
 	/* reject unmatched parameters when applying symmetry */
 	symmetry = rtd->dai_link->symmetric_rates;
@@ -406,9 +419,9 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
 
 	if (symmetry) {
 		for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
-			if (cpu_dai->rate && cpu_dai->rate != rate) {
+			if (cpu_dai->rate && cpu_dai->rate != d.rate) {
 				dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n",
-					cpu_dai->rate, rate);
+					cpu_dai->rate, d.rate);
 				return -EINVAL;
 			}
 		}
@@ -422,9 +435,9 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
 	if (symmetry) {
 		for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
 			if (cpu_dai->channels &&
-			    cpu_dai->channels != channels) {
+			    cpu_dai->channels != d.channels) {
 				dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n",
-					cpu_dai->channels, channels);
+					cpu_dai->channels, d.channels);
 				return -EINVAL;
 			}
 		}
@@ -438,9 +451,9 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream,
 	if (symmetry) {
 		for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
 			if (cpu_dai->sample_bits &&
-			    cpu_dai->sample_bits != sample_bits) {
+			    cpu_dai->sample_bits != d.sample_bits) {
 				dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n",
-					cpu_dai->sample_bits, sample_bits);
+					cpu_dai->sample_bits, d.sample_bits);
 				return -EINVAL;
 			}
 		}
@@ -898,11 +911,8 @@ static int soc_pcm_hw_clean(struct snd_pcm_substream *substream, int rollback)
 	for_each_rtd_dais(rtd, i, dai) {
 		int active = snd_soc_dai_stream_active(dai, substream->stream);
 
-		if (snd_soc_dai_active(dai) == 1) {
-			dai->rate = 0;
-			dai->channels = 0;
-			dai->sample_bits = 0;
-		}
+		if (snd_soc_dai_active(dai) == 1)
+			soc_pcm_set_dai_params(dai, NULL);
 
 		if (active == 1)
 			snd_soc_dai_digital_mute(dai, 1, substream->stream);
@@ -999,11 +1009,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 		if(ret < 0)
 			goto out;
 
-		codec_dai->rate = params_rate(&codec_params);
-		codec_dai->channels = params_channels(&codec_params);
-		codec_dai->sample_bits = snd_pcm_format_physical_width(
-						params_format(&codec_params));
-
+		soc_pcm_set_dai_params(codec_dai, &codec_params);
 		snd_soc_dapm_update_dai(substream, &codec_params, codec_dai);
 	}
 
@@ -1020,11 +1026,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 			goto out;
 
 		/* store the parameters for each DAI */
-		cpu_dai->rate = params_rate(params);
-		cpu_dai->channels = params_channels(params);
-		cpu_dai->sample_bits =
-			snd_pcm_format_physical_width(params_format(params));
-
+		soc_pcm_set_dai_params(cpu_dai, params);
 		snd_soc_dapm_update_dai(substream, params, cpu_dai);
 	}
 
-- 
2.25.1

Re: [PATCH v2 0/3] ASoC: soc-pcm: cleanup code

[Mark Brown]

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On Wed, Jan 13, 2021 at 10:34:49AM +0900, Kuninori Morimoto wrote:

> These are v2 of soc-pcm cleanup code.
> v1 had 6 patches, but I separated into 2 parts.
> This is 1st part of it.

I actually already queued patches 1-4 of v1 - it's testing ATM.  Are
there any changes here or is it just splitting things up?

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Re: [PATCH v2 0/3] ASoC: soc-pcm: cleanup code

[Kuninori Morimoto]

Hi Mark

> > These are v2 of soc-pcm cleanup code.
> > v1 had 6 patches, but I separated into 2 parts.
> > This is 1st part of it.
> 
> I actually already queued patches 1-4 of v1 - it's testing ATM.  Are
> there any changes here or is it just splitting things up?

1-3 are same, and I updated 4-6.
But OK. I will check latest branch

Thank you for your help !!

Best regards
---
Kuninori Morimoto