From 82d81f5cced36e480b581ae51c595e2deb9f2d56 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 26 Jul 2019 13:51:56 +0900 Subject: 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 Link: https://lore.kernel.org/r/87pnlx4d0a.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown --- include/sound/soc-component.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/sound') 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 */ -- cgit v1.2.3