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ASoC: SOF: mediatek: add pcm_pointer callback for mt8186

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add pcm_pointer callback for mt8186 to support read
host position from DSP

Signed-off-by: Chunxu Li <chunxu.li@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220921120239.31934-1-chunxu.li@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Chunxu Li 2022-09-21 20:02:39 +08:00 committed by Mark Brown
parent 843e10b394
commit a921986f44
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
1 changed files with 33 additions and 0 deletions
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33
sound/soc/sof/mediatek/mt8186/mt8186.c
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@ -470,6 +470,38 @@ static int mt8186_pcm_hw_params(struct snd_sof_dev *sdev,
return 0;
}
static snd_pcm_uframes_t mt8186_pcm_pointer(struct snd_sof_dev *sdev,
struct snd_pcm_substream *substream)
{
int ret;
snd_pcm_uframes_t pos;
struct snd_sof_pcm *spcm;
struct sof_ipc_stream_posn posn;
struct snd_sof_pcm_stream *stream;
struct snd_soc_component *scomp = sdev->component;
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
spcm = snd_sof_find_spcm_dai(scomp, rtd);
if (!spcm) {
dev_warn_ratelimited(sdev->dev, "warn: can't find PCM with DAI ID %d\n",
rtd->dai_link->id);
return 0;
}
stream = &spcm->stream[substream->stream];
ret = snd_sof_ipc_msg_data(sdev, stream->substream, &posn, sizeof(posn));
if (ret < 0) {
dev_warn(sdev->dev, "failed to read stream position: %d\n", ret);
return 0;
}
memcpy(&stream->posn, &posn, sizeof(posn));
pos = spcm->stream[substream->stream].posn.host_posn;
pos = bytes_to_frames(substream->runtime, pos);
return pos;
}
static struct snd_soc_dai_driver mt8186_dai[] = {
{
.name = "SOF_DL1",
@ -537,6 +569,7 @@ static struct snd_sof_dsp_ops sof_mt8186_ops = {
/* stream callbacks */
.pcm_open = sof_stream_pcm_open,
.pcm_hw_params = mt8186_pcm_hw_params,
.pcm_pointer = mt8186_pcm_pointer,
.pcm_close = sof_stream_pcm_close,
/* firmware loading */