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ASoC: soc-dai: add mark for snd_soc_dai_compr_startup/shutdown() 

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 1) snd_soc_dai_compr_startup/shutdown(),
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/87mtze5iwp.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2020-11-19 08:50:04 +09:00 committed by Mark Brown
parent 15a7b8c136
commit 1e6a93cf74
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 19 additions and 6 deletions
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4
include/sound/soc-dai.h
View File

@ -196,7 +196,8 @@ int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
struct snd_compr_stream *cstream);
void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
struct snd_compr_stream *cstream);
struct snd_compr_stream *cstream,
int rollback);
int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
struct snd_compr_stream *cstream, int cmd);
int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
@ -400,6 +401,7 @@ struct snd_soc_dai {
/* function mark */
struct snd_pcm_substream *mark_startup;
struct snd_pcm_substream *mark_hw_params;
struct snd_compr_stream *mark_compr_startup;
/* bit field */
unsigned int probed:1;

8
sound/soc/soc-compress.c
View File

@ -45,7 +45,7 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
snd_soc_component_compr_free(cstream, NULL);
snd_soc_dai_compr_shutdown(cpu_dai, cstream);
snd_soc_dai_compr_shutdown(cpu_dai, cstream, 0);
snd_soc_dapm_stream_stop(rtd, stream);
@ -91,7 +91,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream)
machine_err:
snd_soc_component_compr_free(cstream, component);
snd_soc_dai_compr_shutdown(cpu_dai, cstream);
snd_soc_dai_compr_shutdown(cpu_dai, cstream, 1);
out:
mutex_unlock(&rtd->card->pcm_mutex);
pm_err:
@ -165,7 +165,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
machine_err:
snd_soc_component_compr_free(cstream, component);
open_err:
snd_soc_dai_compr_shutdown(cpu_dai, cstream);
snd_soc_dai_compr_shutdown(cpu_dai, cstream, 1);
out:
dpcm_path_put(&list);
be_err:
@ -211,7 +211,7 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream)
snd_soc_component_compr_free(cstream, NULL);
snd_soc_dai_compr_shutdown(cpu_dai, cstream);
snd_soc_dai_compr_shutdown(cpu_dai, cstream, 0);
mutex_unlock(&fe->card->mutex);
return 0;

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

@ -612,16 +612,27 @@ int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
dai->driver->cops->startup)
ret = dai->driver->cops->startup(cstream, dai);
/* mark cstream if succeeded */
if (ret == 0)
soc_dai_mark_push(dai, cstream, compr_startup);
return soc_dai_ret(dai, ret);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_startup);
void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
struct snd_compr_stream *cstream)
struct snd_compr_stream *cstream,
int rollback)
{
if (rollback && !soc_dai_mark_match(dai, cstream, compr_startup))
return;
if (dai->driver->cops &&
dai->driver->cops->shutdown)
dai->driver->cops->shutdown(cstream, dai);
/* remove marked cstream */
soc_dai_mark_pop(dai, cstream, compr_startup);
}
EXPORT_SYMBOL_GPL(snd_soc_dai_compr_shutdown);