diff options
| author |   Shreyas NC <shreyas.nc@intel.com> | 2018-04-26 18:38:38 +0530 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2018-05-11 21:47:19 +0530 |
| commit | 97349b60519ee508d5e93334eb8c3c4b4e0e5faa (patch) | |
| tree | e732baa5e4a7abd8eda66b4815da2d2692ee309a /include/sound | |
| parent | soundwire: Add stream configuration APIs (diff) | |
| download | linux-dev-97349b60519ee508d5e93334eb8c3c4b4e0e5faa.tar.xz linux-dev-97349b60519ee508d5e93334eb8c3c4b4e0e5faa.zip | |
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: Shreyas NC <shreyas.nc@intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/soc-dai.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index 8ad11669e4d8..3ddb575eed54 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -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 |