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ASoC: soc-component: add snd_soc_pcm_component_pointer()

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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_pointer() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87sgqt4d0j.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2019-07-26 13:51:47 +09:00 committed by Mark Brown
parent 7951b14611
commit 0035e2565b
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 21 additions and 12 deletions
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2
include/sound/soc-component.h
View File

@ -371,4 +371,6 @@ int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
struct of_phandle_args *args,
const char **dai_name);
int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream);
#endif /* __SOC_COMPONENT_H */

18
sound/soc/soc-component.c
View File

@ -424,3 +424,21 @@ int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
args, dai_name);
return -ENOTSUPP;
}
int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_component *component;
struct snd_soc_rtdcom_list *rtdcom;
for_each_rtdcom(rtd, rtdcom) {
component = rtdcom->component;
/* FIXME: use 1st pointer */
if (component->driver->ops &&
component->driver->ops->pointer)
return component->driver->ops->pointer(substream);
}
return 0;
}

13
sound/soc/soc-pcm.c
View File

@ -1111,8 +1111,6 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream,
static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_component *component;
struct snd_soc_rtdcom_list *rtdcom;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai;
struct snd_pcm_runtime *runtime = substream->runtime;
@ -1124,17 +1122,8 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream)
/* clearing the previous total delay */
runtime->delay = 0;
for_each_rtdcom(rtd, rtdcom) {
component = rtdcom->component;
offset = snd_soc_pcm_component_pointer(substream);
if (!component->driver->ops ||
!component->driver->ops->pointer)
continue;
/* FIXME: use 1st pointer */
offset = component->driver->ops->pointer(substream);
break;
}
/* base delay if assigned in pointer callback */
delay = runtime->delay;