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ASoC: SOF: compress: Add support for computing timestamps

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

Reviewed-by: Paul Olaru <paul.olaru@oss.nxp.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20220817080529.10864-5-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Laurentiu Mihalcea 2022-08-17 11:05:29 +03:00 committed by Mark Brown
parent 3ccbe68877
commit c1a731c713
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1 changed files with 11 additions and 0 deletions
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11
sound/soc/sof/compress.c
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@ -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;
}