diff options
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) |