diff mbox

[v6,08/13] ASoC: Add SoundWire stream programming interface

Message ID 1524748809-21860-9-git-send-email-vkoul@kernel.org (mailing list archive)
State New, archived
Headers show

Commit Message

Vinod Koul April 26, 2018, 1:20 p.m. UTC 
From: Shreyas NC <shreyas.nc@intel.com>

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>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
 include/sound/soc-dai.h | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

Comments

Mark Brown May 9, 2018, 8:55 a.m. UTC | #1 
On Thu, Apr 26, 2018 at 06:50:04PM +0530, Vinod Koul wrote:
> From: Shreyas NC <shreyas.nc@intel.com>
> 
> 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.

Acked-by: Mark Brown <broonie@kernel.org>
diff mbox

Patch

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index 58acd00cae19..03ae58c13b49 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 +361,25 @@  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