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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 | |
| parent | 96a47908d8769479f5217bf3f432ccdc06a29747 (diff) | |
| download | linux-82d81f5cced36e480b581ae51c595e2deb9f2d56.tar.gz linux-82d81f5cced36e480b581ae51c595e2deb9f2d56.tar.bz2 linux-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>
| -rw-r--r-- | include/sound/soc-component.h | 3 | ||||
| -rw-r--r-- | sound/soc/soc-component.c | 21 | ||||
| -rw-r--r-- | sound/soc/soc-pcm.c | 25 |
3 files changed, 25 insertions, 24 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 */ diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index a6c0857a9e90..20897dce1bec 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -462,3 +462,24 @@ int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream, return snd_pcm_lib_ioctl(substream, cmd, arg); } + +int snd_soc_pcm_component_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; + + /* FIXME. it returns 1st copy now */ + if (component->driver->ops && + component->driver->ops->copy_user) + return component->driver->ops->copy_user( + substream, channel, pos, buf, bytes); + } + + return -EINVAL; +} 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) |