@@ -16,6 +16,7 @@
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
+#include <sound/sdw.h>
#include <sound/soc.h>
struct sdw_mockup_priv {
@@ -80,12 +81,9 @@ static int sdw_mockup_pcm_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_component *component = dai->component;
struct sdw_mockup_priv *sdw_mockup = snd_soc_component_get_drvdata(component);
- struct sdw_stream_config stream_config;
- struct sdw_port_config port_config;
- enum sdw_data_direction direction;
+ struct sdw_stream_config stream_config = {0};
+ struct sdw_port_config port_config = {0};
struct sdw_stream_data *stream;
- int num_channels;
- int port;
int ret;
stream = snd_soc_dai_get_dma_data(dai, substream);
@@ -96,22 +94,12 @@ static int sdw_mockup_pcm_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
/* SoundWire specific configuration */
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- direction = SDW_DATA_DIR_RX;
- port = 1;
- } else {
- direction = SDW_DATA_DIR_TX;
- port = 8;
- }
-
- stream_config.frame_rate = params_rate(params);
- stream_config.ch_count = params_channels(params);
- stream_config.bps = snd_pcm_format_width(params_format(params));
- stream_config.direction = direction;
+ snd_sdw_params_to_config(substream, params, &stream_config, &port_config);
- num_channels = params_channels(params);
- port_config.ch_mask = (1 << num_channels) - 1;
- port_config.num = port;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ port_config.num = 1;
+ else
+ port_config.num = 8;
ret = sdw_stream_add_slave(sdw_mockup->slave, &stream_config,
&port_config, 1, stream->sdw_stream);
The conversation from hw_params to SoundWire config is pretty standard as such most of the conversation can be handled by the new snd_sdw_params_to_config helper function. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> --- sound/soc/codecs/sdw-mockup.c | 28 ++++++++-------------------- 1 file changed, 8 insertions(+), 20 deletions(-)