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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2020-11-13 13:16:30 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-11-18 18:00:15 +0000 |
| commit | b5852e66b115172dc3a88cb476b99c21ac6ffed8 (patch) | |
| tree | 3048cc24ebdf1a37beb122c4a46c23a629f27379 /sound/soc/soc-component.c | |
| parent | 03ecea64e0ae26d7a8b53bce05a39b78022e1312 (diff) | |
| download | lwn-b5852e66b115172dc3a88cb476b99c21ac6ffed8.tar.gz lwn-b5852e66b115172dc3a88cb476b99c21ac6ffed8.zip | |
ASoC: soc-component: add snd_soc_component_compr_copy()
component related function should be implemented at
soc-component.c.
This patch adds snd_soc_component_compr_copy().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/87361d7v5z.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/soc-component.c')
| -rw-r--r-- | sound/soc/soc-component.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index 3ff2f227b99e..77fcb6fc42fb 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -611,6 +611,30 @@ int snd_soc_component_compr_pointer(struct snd_compr_stream *cstream, } EXPORT_SYMBOL_GPL(snd_soc_component_compr_pointer); +int snd_soc_component_compr_copy(struct snd_compr_stream *cstream, + char __user *buf, size_t count) +{ + struct snd_soc_pcm_runtime *rtd = cstream->private_data; + struct snd_soc_component *component; + int i, ret = 0; + + mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass); + + for_each_rtd_components(rtd, i, component) { + if (component->driver->compress_ops && + component->driver->compress_ops->copy) { + ret = component->driver->compress_ops->copy( + component, cstream, buf, count); + break; + } + } + + mutex_unlock(&rtd->card->pcm_mutex); + + return soc_component_ret(component, ret); +} +EXPORT_SYMBOL_GPL(snd_soc_component_compr_copy); + static unsigned int soc_component_read_no_lock( struct snd_soc_component *component, unsigned int reg) |