Merge remote-tracking branch 'asoc/topic/compress' into asoc-next

include/sound/soc-dai.h

@@ -126,7 +126,8 @@ int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
 int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);
 
 /* Digital Audio Interface mute */
-int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute);
+int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
+			     int direction);
 
 struct snd_soc_dai_ops {
 	/*
@@ -157,6 +158,7 @@ struct snd_soc_dai_ops {
 	 * Called by soc-core to minimise any pops.
 	 */
 	int (*digital_mute)(struct snd_soc_dai *dai, int mute);
+	int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream);
 
 	/*
 	 * ALSA PCM audio operations - all optional.

sound/soc/soc-compress.c

@@ -33,6 +33,8 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	int ret = 0;
 
+	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+
 	if (platform->driver->compr_ops && platform->driver->compr_ops->open) {
 		ret = platform->driver->compr_ops->open(cstream);
 		if (ret < 0) {
@@ -61,15 +63,46 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
 	codec_dai->active++;
 	rtd->codec->active++;
 
+	mutex_unlock(&rtd->pcm_mutex);
+
 	return 0;
 
 machine_err:
 	if (platform->driver->compr_ops && platform->driver->compr_ops->free)
 		platform->driver->compr_ops->free(cstream);
 out:
+	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
 
+/*
+ * Power down the audio subsystem pmdown_time msecs after close is called.
+ * This is to ensure there are no pops or clicks in between any music tracks
+ * due to DAPM power cycling.
+ */
+static void close_delayed_work(struct work_struct *work)
+{
+	struct snd_soc_pcm_runtime *rtd =
+			container_of(work, struct snd_soc_pcm_runtime, delayed_work.work);
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+
+	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+
+	dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n",
+		 codec_dai->driver->playback.stream_name,
+		 codec_dai->playback_active ? "active" : "inactive",
+		 rtd->pop_wait ? "yes" : "no");
+
+	/* are we waiting on this codec DAI stream */
+	if (rtd->pop_wait == 1) {
+		rtd->pop_wait = 0;
+		snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
+					  SND_SOC_DAPM_STREAM_STOP);
+	}
+
+	mutex_unlock(&rtd->pcm_mutex);
+}
+
 static int soc_compr_free(struct snd_compr_stream *cstream)
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
@@ -78,6 +111,8 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct snd_soc_codec *codec = rtd->codec;
 
+	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+
 	if (cstream->direction == SND_COMPRESS_PLAYBACK) {
 		cpu_dai->playback_active--;
 		codec_dai->playback_active--;
@@ -86,7 +121,7 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 		codec_dai->capture_active--;
 	}
 
-	snd_soc_dai_digital_mute(codec_dai, 1);
+	snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction);
 
 	cpu_dai->active--;
 	codec_dai->active--;
@@ -112,10 +147,11 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 			snd_soc_dapm_stream_event(rtd,
 					SNDRV_PCM_STREAM_PLAYBACK,
 					SND_SOC_DAPM_STREAM_STOP);
-		} else
+		} else {
 			rtd->pop_wait = 1;
 			schedule_delayed_work(&rtd->delayed_work,
 				msecs_to_jiffies(rtd->pmdown_time));
+		}
 	} else {
 		/* capture streams can be powered down now */
 		snd_soc_dapm_stream_event(rtd,
@@ -123,6 +159,7 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 			SND_SOC_DAPM_STREAM_STOP);
 	}
 
+	mutex_unlock(&rtd->pcm_mutex);
 	return 0;
 }
 
@@ -134,17 +171,25 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd)
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	int ret = 0;
 
+	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+
 	if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) {
 		ret = platform->driver->compr_ops->trigger(cstream, cmd);
 		if (ret < 0)
-			return ret;
+			goto out;
 	}
 
-	if (cmd == SNDRV_PCM_TRIGGER_START)
+	switch (cmd) {
-		snd_soc_dai_digital_mute(codec_dai, 0);
+	case SNDRV_PCM_TRIGGER_START:
-	else if (cmd == SNDRV_PCM_TRIGGER_STOP)
+		snd_soc_dai_digital_mute(codec_dai, 0, cstream->direction);
-		snd_soc_dai_digital_mute(codec_dai, 1);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		snd_soc_dai_digital_mute(codec_dai, 1, cstream->direction);
+		break;
+	}
 
+out:
+	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
 
@@ -155,6 +200,8 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
 	struct snd_soc_platform *platform = rtd->platform;
 	int ret = 0;
 
+	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+
 	/* first we call set_params for the platform driver
 	 * this should configure the soc side
 	 * if the machine has compressed ops then we call that as well
@@ -164,18 +211,20 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream,
 	if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) {
 		ret = platform->driver->compr_ops->set_params(cstream, params);
 		if (ret < 0)
-			return ret;
+			goto out;
 	}
 
 	if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->set_params) {
 		ret = rtd->dai_link->compr_ops->set_params(cstream);
 		if (ret < 0)
-			return ret;
+			goto out;
 	}
 
 	snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
 				SND_SOC_DAPM_STREAM_START);
 
+out:
+	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
 
@@ -186,9 +235,12 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream,
 	struct snd_soc_platform *platform = rtd->platform;
 	int ret = 0;
 
+	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+
 	if (platform->driver->compr_ops && platform->driver->compr_ops->get_params)
 		ret = platform->driver->compr_ops->get_params(cstream, params);
 
+	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
 
@@ -199,9 +251,12 @@ static int soc_compr_get_caps(struct snd_compr_stream *cstream,
 	struct snd_soc_platform *platform = rtd->platform;
 	int ret = 0;
 
+	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+
 	if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps)
 		ret = platform->driver->compr_ops->get_caps(cstream, caps);
 
+	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
 
@@ -212,9 +267,12 @@ static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream,
 	struct snd_soc_platform *platform = rtd->platform;
 	int ret = 0;
 
+	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+
 	if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps)
 		ret = platform->driver->compr_ops->get_codec_caps(cstream, codec);
 
+	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
 
@@ -224,9 +282,12 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
 	struct snd_soc_platform *platform = rtd->platform;
 	int ret = 0;
 
+	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+
 	if (platform->driver->compr_ops && platform->driver->compr_ops->ack)
 		ret = platform->driver->compr_ops->ack(cstream, bytes);
 
+	mutex_unlock(&rtd->pcm_mutex);
 	return ret;
 }
 
@@ -236,12 +297,31 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream,
 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
 
+	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+
 	if (platform->driver->compr_ops && platform->driver->compr_ops->pointer)
 		 platform->driver->compr_ops->pointer(cstream, tstamp);
 
+	mutex_unlock(&rtd->pcm_mutex);
 	return 0;
 }
 
+static int soc_compr_copy(struct snd_compr_stream *cstream,
+			  const char __user *buf, size_t count)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_soc_platform *platform = rtd->platform;
+	int ret = 0;
+
+	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
+
+	if (platform->driver->compr_ops && platform->driver->compr_ops->copy)
+		ret = platform->driver->compr_ops->copy(cstream, buf, count);
+
+	mutex_unlock(&rtd->pcm_mutex);
+	return ret;
+}
+
 /* ASoC Compress operations */
 static struct snd_compr_ops soc_compr_ops = {
 	.open		= soc_compr_open,
@@ -259,6 +339,7 @@ static struct snd_compr_ops soc_compr_ops = {
 int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
 {
 	struct snd_soc_codec *codec = rtd->codec;
+	struct snd_soc_platform *platform = rtd->platform;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	struct snd_compr *compr;
@@ -275,20 +356,38 @@ int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
 		return -ENOMEM;
 	}
 
-	compr->ops = &soc_compr_ops;
+	compr->ops = devm_kzalloc(rtd->card->dev, sizeof(soc_compr_ops),
+				  GFP_KERNEL);
+	if (compr->ops == NULL) {
+		dev_err(rtd->card->dev, "Cannot allocate compressed ops\n");
+		ret = -ENOMEM;
+		goto compr_err;
+	}
+	memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops));
+
+	/* Add copy callback for not memory mapped DSPs */
+	if (platform->driver->compr_ops && platform->driver->compr_ops->copy)
+		compr->ops->copy = soc_compr_copy;
+
 	mutex_init(&compr->lock);
 	ret = snd_compress_new(rtd->card->snd_card, num, direction, compr);
 	if (ret < 0) {
 		pr_err("compress asoc: can't create compress for codec %s\n",
 			codec->name);
-		kfree(compr);
+		goto compr_err;
-		return ret;
 	}
 
+	/* DAPM dai link stream work */
+	INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work);
+
 	rtd->compr = compr;
 	compr->private_data = rtd;
 
 	printk(KERN_INFO "compress asoc: %s <-> %s mapping ok\n", codec_dai->name,
 		cpu_dai->name);
 	return ret;
+
+compr_err:
+	kfree(compr);
+	return ret;
 }

sound/soc/soc-core.c

@@ -3540,12 +3540,20 @@ EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
  * snd_soc_dai_digital_mute - configure DAI system or master clock.
  * @dai: DAI
  * @mute: mute enable
+ * @direction: stream to mute
  *
  * Mutes the DAI DAC.
  */
-int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute)
+int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
+			     int direction)
 {
-	if (dai->driver && dai->driver->ops->digital_mute)
+	if (!dai->driver)
+		return -ENOTSUPP;
+
+	if (dai->driver->ops->mute_stream)
+		return dai->driver->ops->mute_stream(dai, mute, direction);
+	else if (direction == SNDRV_PCM_STREAM_PLAYBACK &&
+		 dai->driver->ops->digital_mute)
 		return dai->driver->ops->digital_mute(dai, mute);
 	else
 		return -ENOTSUPP;

sound/soc/soc-dapm.c

@@ -3255,14 +3255,16 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
 		break;
 
 	case SND_SOC_DAPM_POST_PMU:
-		ret = snd_soc_dai_digital_mute(sink, 0);
+		ret = snd_soc_dai_digital_mute(sink, 0,
+					       SNDRV_PCM_STREAM_PLAYBACK);
 		if (ret != 0 && ret != -ENOTSUPP)
 			dev_warn(sink->dev, "ASoC: Failed to unmute: %d\n", ret);
 		ret = 0;
 		break;
 
 	case SND_SOC_DAPM_PRE_PMD:
-		ret = snd_soc_dai_digital_mute(sink, 1);
+		ret = snd_soc_dai_digital_mute(sink, 1,
+					       SNDRV_PCM_STREAM_PLAYBACK);
 		if (ret != 0 && ret != -ENOTSUPP)
 			dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret);
 		ret = 0;

sound/soc/soc-pcm.c

@@ -383,8 +383,7 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
 	/* Muting the DAC suppresses artifacts caused during digital
 	 * shutdown, for example from stopping clocks.
 	 */
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+	snd_soc_dai_digital_mute(codec_dai, 1, substream->stream);
-		snd_soc_dai_digital_mute(codec_dai, 1);
 
 	if (cpu_dai->driver->ops->shutdown)
 		cpu_dai->driver->ops->shutdown(substream, cpu_dai);
@@ -488,7 +487,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 	snd_soc_dapm_stream_event(rtd, substream->stream,
 			SND_SOC_DAPM_STREAM_START);
 
-	snd_soc_dai_digital_mute(codec_dai, 0);
+	snd_soc_dai_digital_mute(codec_dai, 0, substream->stream);
 
 out:
 	mutex_unlock(&rtd->pcm_mutex);
@@ -586,7 +585,7 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 
 	/* apply codec digital mute */
 	if (!codec->active)
-		snd_soc_dai_digital_mute(codec_dai, 1);
+		snd_soc_dai_digital_mute(codec_dai, 1, substream->stream);
 
 	/* free any machine hw params */
 	if (rtd->dai_link->ops && rtd->dai_link->ops->hw_free)