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Commit 97349b60 authored by Shreyas NC's avatar Shreyas NC Committed by Vinod Koul
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ASoC: Add SoundWire stream programming interface 



SoundWire stream needs to be propagated to all the DAIs(cpu, codec).
So, add a snd_soc_dai_set_sdw_stream() API for the same.

Signed-off-by: default avatarShreyas NC <shreyas.nc@intel.com>
Acked-by: default avatarMark Brown <broonie@kernel.org>
Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 5c3eb9f7

include/sound/soc-dai.h

+23 −0
Original line number Diff line number Diff line
@@ -170,6 +170,8 @@ struct snd_soc_dai_ops { 
		unsigned int rx_num, unsigned int *rx_slot);

	int (*set_tristate)(struct snd_soc_dai *dai, int tristate);



	int (*set_sdw_stream)(struct snd_soc_dai *dai,

			void *stream, int direction);

	/*

	 * DAI digital mute - optional.

	 * Called by soc-core to minimise any pops.
@@ -358,4 +360,25 @@ static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai) 
	return dev_get_drvdata(dai->dev);

}



/**

 * snd_soc_dai_set_sdw_stream() - Configures a DAI for SDW stream operation

 * @dai: DAI

 * @stream: STREAM

 * @direction: Stream direction(Playback/Capture)

 * SoundWire subsystem doesn't have a notion of direction and we reuse

 * the ASoC stream direction to configure sink/source ports.

 * Playback maps to source ports and Capture for sink ports.

 *

 * This should be invoked with NULL to clear the stream set previously.

 * Returns 0 on success, a negative error code otherwise.

 */

static inline int snd_soc_dai_set_sdw_stream(struct snd_soc_dai *dai,

				void *stream, int direction)

{

	if (dai->driver->ops->set_sdw_stream)

		return dai->driver->ops->set_sdw_stream(dai, stream, direction);

	else

		return -ENOTSUPP;

}



#endif