Unverified Commit c1a731c7 authored by Laurentiu Mihalcea's avatar Laurentiu Mihalcea Committed by Mark Brown
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ASoC: SOF: compress: Add support for computing timestamps 



We compute the number of pcm_io_frames by dividing the
dai position to size of a frame (channels * sample size).

Reviewed-by: default avatarPaul Olaru <paul.olaru@oss.nxp.com>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: default avatarLaurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Signed-off-by: default avatarDaniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20220817080529.10864-5-daniel.baluta@oss.nxp.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 3ccbe688

sound/soc/sof/compress.c

+11 −0
Original line number Diff line number Diff line
@@ -327,10 +327,21 @@ static int sof_compr_pointer(struct snd_soc_component *component, 
			     struct snd_compr_stream *cstream,

			     struct snd_compr_tstamp *tstamp)

{

	u64 dai_posn;

	struct snd_sof_pcm *spcm;

	struct snd_soc_pcm_runtime *rtd = cstream->private_data;

	struct sof_compr_stream *sstream = cstream->runtime->private_data;



	spcm = snd_sof_find_spcm_dai(component, rtd);

	if (!spcm)

		return -EINVAL;



	dai_posn = spcm->stream[cstream->direction].posn.dai_posn;



	tstamp->sampling_rate = sstream->sampling_rate;

	tstamp->copied_total = sstream->copied_total;

	tstamp->pcm_io_frames = div_u64(spcm->stream[cstream->direction].posn.dai_posn,

					sstream->channels * sstream->sample_container_bytes);



	return 0;

}