Current ALSA SoC is directly using component->driver->ops->xxx, thus, it is deep nested, and makes code difficult to read, and is not good for encapsulation. This patch adds new snd_soc_component_ack() and use it. Ack callback is revived because some ASoC driver is using it.

Signed-off-by: Gyeongtaek Lee gt82.lee@samsung.com --- include/sound/soc-component.h | 1 + sound/soc/soc-component.c | 18 ++++++++++++++++++ sound/soc/soc-pcm.c | 2 ++ 3 files changed, 21 insertions(+)

diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h index 5d80b2eef525..50b079272b47 100644 --- a/include/sound/soc-component.h +++ b/include/sound/soc-component.h @@ -381,6 +381,7 @@ struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream, unsigned long offset); int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *vma); +int snd_soc_pcm_component_ack(struct snd_pcm_substream *substream); int snd_soc_pcm_component_new(struct snd_pcm *pcm); void snd_soc_pcm_component_free(struct snd_pcm *pcm);

diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index 79ffc2820ba9..b4be91cb9fa0 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -526,6 +526,24 @@ int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream, return -EINVAL; }

+int snd_soc_pcm_component_ack(struct snd_pcm_substream *substream) +{ + 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 ack now */ + if (component->driver->ops && + component->driver->ops->ack) + return component->driver->ops->ack(substream); + } + + return -EINVAL; +} + int snd_soc_pcm_component_new(struct snd_pcm *pcm) { struct snd_soc_pcm_runtime *rtd = pcm->private_data; diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index b600d3eaaf5c..c8a5a9a9d35f 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -2941,6 +2941,8 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) if (!ops) continue;

+ if (ops->ack) + rtd->ops.ack = snd_soc_pcm_component_ack; if (ops->copy_user) rtd->ops.copy_user = snd_soc_pcm_component_copy_user; if (ops->page)

base-commit: ef8e14794308a428b194f8b06ad9ae06b43466e4