korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-30 07:34:12 +08:00
Code Issues Packages Projects Releases Wiki Activity

ASoC: soc-component: add mark for snd_soc_component_compr_open/free()

Browse Source 
soc_compr_open() does rollback when failed (A),
but, it is almost same as soc_compr_free().

	static int soc_compr_open(xxx)
	{
		...
		if (ret < 0)
			goto xxx_err;
		...
		return 0;

 ^	machine_err:
 |		...
 |	out:
(A)		...
 |	pm_err:
 |		...
 v		return ret;
	}

The difference is
soc_compr_free()  is for all dai/component/substream,
rollback          is for succeeded part only.

This kind of duplicated code can be a hotbed of bugs,
thus, we want to share soc_compr_free() and rollback.
	1) snd_soc_dai_compr_startup/shutdown()
=>	2) snd_soc_component_compr_open/free()
	3) snd_soc_link_compr_startup/shutdown()

This patch is for 2) snd_soc_component_compr_open/free(),
and adds new cstream mark.
It will mark cstream when startup() was suceeded.
If rollback happen *after* that, it will check rollback flag
and marked cstream.

It cares *previous* startup() only now,
but we might want to check *whole* marked cstream in the future.
This patch is using macro so that it can be easily adjust to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87lfey5iwk.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2020-11-19 08:50:09 +09:00 committed by Mark Brown
parent 1e6a93cf74
commit f94ba9ac20
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 17 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/sound/soc-component.h
View File

@ -221,6 +221,7 @@ struct snd_soc_component {
struct snd_pcm_substream *mark_module;
struct snd_pcm_substream *mark_open;
struct snd_pcm_substream *mark_hw_params;
struct snd_compr_stream *mark_compr_open;
void *mark_pm;
#ifdef CONFIG_DEBUG_FS
@ -444,10 +445,9 @@ int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
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_component_compr_open(struct snd_compr_stream *cstream,
struct snd_soc_component **last);
int snd_soc_component_compr_open(struct snd_compr_stream *cstream);
void snd_soc_component_compr_free(struct snd_compr_stream *cstream,
struct snd_soc_component *last);
int rollback);
int snd_soc_component_compr_trigger(struct snd_compr_stream *cstream, int cmd);
int snd_soc_component_compr_set_params(struct snd_compr_stream *cstream,
struct snd_compr_params *params);

17
sound/soc/soc-component.c
View File

@ -421,8 +421,7 @@ EXPORT_SYMBOL_GPL(snd_soc_component_exit_regmap);
#endif
int snd_soc_component_compr_open(struct snd_compr_stream *cstream,
struct snd_soc_component **last)
int snd_soc_component_compr_open(struct snd_compr_stream *cstream)
{
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
struct snd_soc_component *component;
@ -432,32 +431,32 @@ int snd_soc_component_compr_open(struct snd_compr_stream *cstream,
if (component->driver->compress_ops &&
component->driver->compress_ops->open) {
ret = component->driver->compress_ops->open(component, cstream);
if (ret < 0) {
*last = component;
if (ret < 0)
return soc_component_ret(component, ret);
}
}
soc_component_mark_push(component, cstream, compr_open);
}
*last = NULL;
return 0;
}
EXPORT_SYMBOL_GPL(snd_soc_component_compr_open);
void snd_soc_component_compr_free(struct snd_compr_stream *cstream,
struct snd_soc_component *last)
int rollback)
{
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
struct snd_soc_component *component;
int i;
for_each_rtd_components(rtd, i, component) {
if (component == last)
break;
if (rollback && !soc_component_mark_match(component, cstream, compr_open))
continue;
if (component->driver->compress_ops &&
component->driver->compress_ops->free)
component->driver->compress_ops->free(component, cstream);
soc_component_mark_pop(component, cstream, compr_open);
}
}
EXPORT_SYMBOL_GPL(snd_soc_component_compr_free);

14
sound/soc/soc-compress.c
View File

@ -43,7 +43,7 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
snd_soc_link_compr_shutdown(cstream);
snd_soc_component_compr_free(cstream, NULL);
snd_soc_component_compr_free(cstream, 0);
snd_soc_dai_compr_shutdown(cpu_dai, cstream, 0);
@ -59,7 +59,6 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
static int soc_compr_open(struct snd_compr_stream *cstream)
{
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
struct snd_soc_component *component = NULL;
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */
int ret;
@ -74,7 +73,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
if (ret < 0)
goto out;
ret = snd_soc_component_compr_open(cstream, &component);
ret = snd_soc_component_compr_open(cstream);
if (ret < 0)
goto machine_err;
@ -89,7 +88,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
return 0;
machine_err:
snd_soc_component_compr_free(cstream, component);
snd_soc_component_compr_free(cstream, 1);
snd_soc_dai_compr_shutdown(cpu_dai, cstream, 1);
out:
@ -105,7 +104,6 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
struct snd_soc_pcm_runtime *fe = cstream->private_data;
struct snd_pcm_substream *fe_substream =
fe->pcm->streams[cstream->direction].substream;
struct snd_soc_component *component;
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(fe, 0);
struct snd_soc_dpcm *dpcm;
struct snd_soc_dapm_widget_list *list;
@ -142,7 +140,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
if (ret < 0)
goto out;
ret = snd_soc_component_compr_open(cstream, &component);
ret = snd_soc_component_compr_open(cstream);
if (ret < 0)
goto open_err;
@ -163,7 +161,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
return 0;
machine_err:
snd_soc_component_compr_free(cstream, component);
snd_soc_component_compr_free(cstream, 1);
open_err:
snd_soc_dai_compr_shutdown(cpu_dai, cstream, 1);
out:
@ -209,7 +207,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)
snd_soc_link_compr_shutdown(cstream);
snd_soc_component_compr_free(cstream, NULL);
snd_soc_component_compr_free(cstream, 0);
snd_soc_dai_compr_shutdown(cpu_dai, cstream, 0);