On 04/16/2018 10:23 AM, Vinod Koul wrote:
From: Shreyas NC <shreyas.nc@xxxxxxxxx>
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@xxxxxxxxx>
Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx>
---
include/sound/soc-dai.h | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 58acd00cae19..0997d4593f6d 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -168,6 +168,8 @@ 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.
@@ -359,4 +361,23 @@ 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 source/sink ports.
same issue as in v2, what is the convention here? How do you map
playback/capture to source/sink?
+ *
+ * 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
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