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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2019-07-26 07:51:56 +0300
committerMark Brown <broonie@kernel.org>2019-08-05 18:25:33 +0300
commit82d81f5cced36e480b581ae51c595e2deb9f2d56 (patch)
tree67093816ad2711e11bea17d5f276a9920995a705 /include
parent96a47908d8769479f5217bf3f432ccdc06a29747 (diff)
downloadlinux-82d81f5cced36e480b581ae51c595e2deb9f2d56.tar.xz
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')
-rw-r--r--include/sound/soc-component.h3
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 */