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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2019-07-26 13:51:56 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-08-05 16:25:33 +0100 |
| commit | 82d81f5cced36e480b581ae51c595e2deb9f2d56 (patch) | |
| tree | 67093816ad2711e11bea17d5f276a9920995a705 /include/sound/soc-component.h | |
| parent | 96a47908d8769479f5217bf3f432ccdc06a29747 (diff) | |
| download | lwn-82d81f5cced36e480b581ae51c595e2deb9f2d56.tar.gz lwn-82d81f5cced36e480b581ae51c595e2deb9f2d56.zip | |
ASoC: soc-component: add snd_soc_pcm_component_copy_user()
Current ALSA SoC is directly using component->driver->ops->xxx,
thus, the code nested deeply, and it makes code difficult to read,
and is not good for encapsulation.
We want to implement component related function at soc-component.c,
but, some of them need to care whole snd_soc_pcm_runtime (= rtd)
connected component.
Let's call component related function which need to care with
for_each_rtdcom() loop as snd_soc_pcm_component_xxx().
This patch adds new snd_soc_pcm_component_copy_user() and use it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87pnlx4d0a.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/sound/soc-component.h')
| -rw-r--r-- | include/sound/soc-component.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h index 5db4e5d028d0..6b95d2467053 100644 --- a/include/sound/soc-component.h +++ b/include/sound/soc-component.h @@ -374,5 +374,8 @@ int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component, int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream); int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream, unsigned int cmd, void *arg); +int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream, + int channel, unsigned long pos, + void __user *buf, unsigned long bytes); #endif /* __SOC_COMPONENT_H */ |