From: Brent Lu <brent.lu@xxxxxxxxx>
An new interface, sof_dai_get_tdm_slots(), is added for machine driver
to get tdm slot number from topology. The dai_get_param() callback
needs to support new parameter type SOF_DAI_PARAM_INTEL_SSP_TDM_SLOTS
by returning the tdm slot number of specific SSP port.
Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Signed-off-by: Brent Lu <brent.lu@xxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
include/sound/sof.h | 1 +
sound/soc/sof/sof-audio.c | 10 ++++++++++
sound/soc/sof/sof-audio.h | 5 +++--
3 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/include/sound/sof.h b/include/sound/sof.h
index ec6c30d54592..64fd5504cb2b 100644
--- a/include/sound/sof.h
+++ b/include/sound/sof.h
@@ -173,5 +173,6 @@ struct sof_dev_desc {
int sof_dai_get_mclk(struct snd_soc_pcm_runtime *rtd);
int sof_dai_get_bclk(struct snd_soc_pcm_runtime *rtd);
+int sof_dai_get_tdm_slots(struct snd_soc_pcm_runtime *rtd);
#endif
diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c
index 2421a115747e..881eec38c2e2 100644
--- a/sound/soc/sof/sof-audio.c
+++ b/sound/soc/sof/sof-audio.c
@@ -1016,3 +1016,13 @@ int sof_dai_get_bclk(struct snd_soc_pcm_runtime *rtd)
return sof_dai_get_param(rtd, SOF_DAI_PARAM_INTEL_SSP_BCLK);
}
EXPORT_SYMBOL(sof_dai_get_bclk);
+
+/*
+ * Helper to get SSP TDM slot number from a pcm_runtime.
+ * Return 0 if not exist.
+ */
+int sof_dai_get_tdm_slots(struct snd_soc_pcm_runtime *rtd)
+{
+ return sof_dai_get_param(rtd, SOF_DAI_PARAM_INTEL_SSP_TDM_SLOTS);
+}
+EXPORT_SYMBOL(sof_dai_get_tdm_slots);
diff --git a/sound/soc/sof/sof-audio.h b/sound/soc/sof/sof-audio.h
index abb2a00c520d..49be02234fc3 100644
--- a/sound/soc/sof/sof-audio.h
+++ b/sound/soc/sof/sof-audio.h
@@ -44,8 +44,9 @@
#define WIDGET_IS_AIF_OR_DAI(id) (WIDGET_IS_DAI(id) || WIDGET_IS_AIF(id))
#define WIDGET_IS_COPIER(id) (WIDGET_IS_AIF_OR_DAI(id) || (id) == snd_soc_dapm_buffer)
-#define SOF_DAI_PARAM_INTEL_SSP_MCLK 0
-#define SOF_DAI_PARAM_INTEL_SSP_BCLK 1
+#define SOF_DAI_PARAM_INTEL_SSP_MCLK 0
+#define SOF_DAI_PARAM_INTEL_SSP_BCLK 1
+#define SOF_DAI_PARAM_INTEL_SSP_TDM_SLOTS 2
enum sof_widget_op {
SOF_WIDGET_PREPARE,
--
2.43.0
