Commit 1e5ddb6b authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ASoC: component: Add sync_stop PCM ops 



Add the support of the new PCM sync_stop ops in ASoC component.
It's optional and can be NULL unless you need the sync operation.

Acked-by: default avatarMark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20191121190709.29121-3-tiwai@suse.de


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 3b1c952c

include/sound/soc-component.h

+3 −0
Original line number Diff line number Diff line
@@ -88,6 +88,8 @@ struct snd_soc_component_driver { 
		       struct snd_pcm_substream *substream);

	int (*trigger)(struct snd_soc_component *component,

		       struct snd_pcm_substream *substream, int cmd);

	int (*sync_stop)(struct snd_soc_component *component,

			 struct snd_pcm_substream *substream);

	snd_pcm_uframes_t (*pointer)(struct snd_soc_component *component,

				     struct snd_pcm_substream *substream);

	int (*get_time_info)(struct snd_soc_component *component,
@@ -405,6 +407,7 @@ int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component, 
int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream);

int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,

				unsigned int cmd, void *arg);

int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream);

int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream,

				    int channel, unsigned long pos,

				    void __user *buf, unsigned long bytes);

sound/soc/soc-component.c

+19 −0
Original line number Diff line number Diff line
@@ -444,6 +444,25 @@ int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream, 
	return snd_pcm_lib_ioctl(substream, cmd, arg);

}



int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct snd_soc_component *component;

	struct snd_soc_rtdcom_list *rtdcom;

	int ret;



	for_each_rtd_components(rtd, rtdcom, component) {

		if (component->driver->ioctl) {

			ret = component->driver->sync_stop(component,

							   substream);

			if (ret < 0)

				return ret;

		}

	}



	return 0;

}



int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream,

				    int channel, unsigned long pos,

				    void __user *buf, unsigned long bytes)

sound/soc/soc-pcm.c

+2 −0
Original line number Diff line number Diff line
@@ -3020,6 +3020,8 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) 


		if (drv->ioctl)

			rtd->ops.ioctl		= snd_soc_pcm_component_ioctl;

		if (drv->sync_stop)

			rtd->ops.sync_stop	= snd_soc_pcm_component_sync_stop;

		if (drv->copy_user)

			rtd->ops.copy_user	= snd_soc_pcm_component_copy_user;

		if (drv->page)

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