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ASoC: SOF: sof-audio: add sof_dai_get_tdm_slots function

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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@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://msgid.link/r/20240527193552.165567-14-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Brent Lu 2024-05-27 14:35:47 -05:00 committed by Mark Brown
parent 6073c477d1
commit 1deba6e24c
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 14 additions and 2 deletions
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1
include/sound/sof.h
View File

@ -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

10
sound/soc/sof/sof-audio.c
View File

@ -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);

5
sound/soc/sof/sof-audio.h
View File

@ -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,