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 --- sound/soc/soc-pcm.c | 25 +------------------------ 1 file changed, 1 insertion(+), 24 deletions(-) (limited to 'sound/soc/soc-pcm.c') diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 12377b8d41c2..b0e6ce89b012 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -2818,29 +2818,6 @@ static void soc_pcm_private_free(struct snd_pcm *pcm) } } -static int soc_rtdcom_copy_user(struct snd_pcm_substream *substream, int channel, - unsigned long pos, void __user *buf, - unsigned long bytes) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_rtdcom_list *rtdcom; - struct snd_soc_component *component; - - for_each_rtdcom(rtd, rtdcom) { - component = rtdcom->component; - - if (!component->driver->ops || - !component->driver->ops->copy_user) - continue; - - /* FIXME. it returns 1st copy now */ - return component->driver->ops->copy_user(substream, channel, - pos, buf, bytes); - } - - return -EINVAL; -} - static struct page *soc_rtdcom_page(struct snd_pcm_substream *substream, unsigned long offset) { @@ -3011,7 +2988,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) continue; if (ops->copy_user) - rtd->ops.copy_user = soc_rtdcom_copy_user; + rtd->ops.copy_user = snd_soc_pcm_component_copy_user; if (ops->page) rtd->ops.page = soc_rtdcom_page; if (ops->mmap) -- cgit v1.2.3