diff options
| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2024-04-02 17:18:27 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-04-02 18:14:57 +0200 |
| commit | ebd3b3014eebdd490f2c509d79e719fbcc680963 (patch) | |
| tree | 815cafe5dcfd618bee28a16f3c6e40550cf190b9 /sound/soc/sof/pcm.c | |
| parent | ASoC: SOF: pcm: add pending_stop state variable (diff) | |
| download | linux-ebd3b3014eebdd490f2c509d79e719fbcc680963.tar.xz linux-ebd3b3014eebdd490f2c509d79e719fbcc680963.zip | |
ASoC: SOF: pcm: reset all PCM sources in case of xruns
With the delayed stops, the xrun handling is problematic: the
applications expects everything to be reset but the firmware and DMA
are still in a PAUSED state.
This patch makes sure the prepare while pending_stop is set is
special-cased.
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Co-developed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://msgid.link/r/20240402151828.175002-17-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/pcm.c')
| -rw-r--r-- | sound/soc/sof/pcm.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c index 2e8782dddc80..7b88e24b7701 100644 --- a/sound/soc/sof/pcm.c +++ b/sound/soc/sof/pcm.c @@ -221,6 +221,7 @@ static int sof_pcm_prepare(struct snd_soc_component *component, struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); + struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component); struct snd_sof_pcm *spcm; int ret; @@ -232,8 +233,18 @@ static int sof_pcm_prepare(struct snd_soc_component *component, if (!spcm) return -EINVAL; - if (spcm->prepared[substream->stream]) - return 0; + if (spcm->prepared[substream->stream]) { + if (!spcm->pending_stop[substream->stream]) + return 0; + + /* + * this case should be reached in case of xruns where we absolutely + * want to free-up and reset all PCM/DMA resources + */ + ret = sof_pcm_stream_free(sdev, substream, spcm, substream->stream, true); + if (ret < 0) + return ret; + } dev_dbg(component->dev, "pcm: prepare stream %d dir %d\n", spcm->pcm.pcm_id, substream->stream); |