[alsa-devel] [PATCH 10/10] ASoC: soc.h: add for_each_pcm_stream()

[Takashi Iwai]

On Thu, 13 Feb 2020 05:26:53 +0100,
Kuninori Morimoto wrote:
> 
> 
> From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
> 
> ALSA SoC has SNDRV_PCM_STREAM_PLAYBACK/CAPTURE everywhere.
> Having for_each_xxxx macro is useful.
> This patch adds for_each_pcm_stream() for it.

This macro can be put in sound/pcm.h.  The similar pattern is found
also generically in many non-ASoC codes, too.


thanks,

Takashi

> 
> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
> ---
>  include/sound/soc.h          |  5 +++++
>  sound/soc/fsl/fsl_asrc_dma.c |  4 ++--
>  sound/soc/soc-core.c         | 31 +++++++++++++------------------
>  3 files changed, 20 insertions(+), 20 deletions(-)
> 
> diff --git a/include/sound/soc.h b/include/sound/soc.h
> index f0e4f36f83bf..58af52efa07d 100644
> --- a/include/sound/soc.h
> +++ b/include/sound/soc.h
> @@ -419,6 +419,11 @@ enum snd_soc_card_subclass {
>  	SND_SOC_CARD_CLASS_RUNTIME	= 1,
>  };
>  
> +#define for_each_pcm_stream(stream) \
> +	for (stream  = SNDRV_PCM_STREAM_PLAYBACK;	\
> +	     stream <= SNDRV_PCM_STREAM_LAST;		\
> +	     stream++)
> +
>  int snd_soc_register_card(struct snd_soc_card *card);
>  int snd_soc_unregister_card(struct snd_soc_card *card);
>  int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card);
> diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
> index ece130f59d15..2f5a62381f94 100644
> --- a/sound/soc/fsl/fsl_asrc_dma.c
> +++ b/sound/soc/fsl/fsl_asrc_dma.c
> @@ -400,7 +400,7 @@ static int fsl_asrc_dma_pcm_new(struct snd_soc_component *component,
>  		return ret;
>  	}
>  
> -	for (i = SNDRV_PCM_STREAM_PLAYBACK; i <= SNDRV_PCM_STREAM_LAST; i++) {
> +	for_each_pcm_stream(i) {
>  		substream = pcm->streams[i].substream;
>  		if (!substream)
>  			continue;
> @@ -428,7 +428,7 @@ static void fsl_asrc_dma_pcm_free(struct snd_soc_component *component,
>  	struct snd_pcm_substream *substream;
>  	int i;
>  
> -	for (i = SNDRV_PCM_STREAM_PLAYBACK; i <= SNDRV_PCM_STREAM_LAST; i++) {
> +	for_each_pcm_stream(i) {
>  		substream = pcm->streams[i].substream;
>  		if (!substream)
>  			continue;
> diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
> index 068d809c349a..dc58ce766f3b 100644
> --- a/sound/soc/soc-core.c
> +++ b/sound/soc/soc-core.c
> @@ -431,6 +431,7 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime(
>  	struct snd_soc_component *component;
>  	struct device *dev;
>  	int ret;
> +	int stream;
>  
>  	/*
>  	 * for rtd->dev
> @@ -465,10 +466,10 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime(
>  
>  	rtd->dev = dev;
>  	INIT_LIST_HEAD(&rtd->list);
> -	INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients);
> -	INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients);
> -	INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients);
> -	INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients);
> +	for_each_pcm_stream(stream) {
> +		INIT_LIST_HEAD(&rtd->dpcm[stream].be_clients);
> +		INIT_LIST_HEAD(&rtd->dpcm[stream].fe_clients);
> +	}
>  	dev_set_drvdata(dev, rtd);
>  	INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work);
>  
> @@ -558,17 +559,14 @@ int snd_soc_suspend(struct device *dev)
>  	snd_soc_flush_all_delayed_work(card);
>  
>  	for_each_card_rtds(card, rtd) {
> +		int stream;
>  
>  		if (rtd->dai_link->ignore_suspend)
>  			continue;
>  
> -		snd_soc_dapm_stream_event(rtd,
> -					  SNDRV_PCM_STREAM_PLAYBACK,
> -					  SND_SOC_DAPM_STREAM_SUSPEND);
> -
> -		snd_soc_dapm_stream_event(rtd,
> -					  SNDRV_PCM_STREAM_CAPTURE,
> -					  SND_SOC_DAPM_STREAM_SUSPEND);
> +		for_each_pcm_stream(stream)
> +			snd_soc_dapm_stream_event(rtd, stream,
> +						  SND_SOC_DAPM_STREAM_SUSPEND);
>  	}
>  
>  	/* Recheck all endpoints too, their state is affected by suspend */
> @@ -664,17 +662,14 @@ static void soc_resume_deferred(struct work_struct *work)
>  	}
>  
>  	for_each_card_rtds(card, rtd) {
> +		int stream;
>  
>  		if (rtd->dai_link->ignore_suspend)
>  			continue;
>  
> -		snd_soc_dapm_stream_event(rtd,
> -					  SNDRV_PCM_STREAM_PLAYBACK,
> -					  SND_SOC_DAPM_STREAM_RESUME);
> -
> -		snd_soc_dapm_stream_event(rtd,
> -					  SNDRV_PCM_STREAM_CAPTURE,
> -					  SND_SOC_DAPM_STREAM_RESUME);
> +		for_each_pcm_stream(stream)
> +			snd_soc_dapm_stream_event(rtd, stream,
> +						  SND_SOC_DAPM_STREAM_RESUME);
>  	}
>  
>  	/* unmute any active DACs */
> -- 
> 2.17.1
> 
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