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ASoC: soc-pcm: care trigger rollback 

soc_pcm_trigger() calls DAI/Component/Link trigger,
but some of them might be failed.

	static int soc_pcm_trigger(...)
	{
		...
		switch (cmd) {
		case SNDRV_PCM_TRIGGER_START:
		case SNDRV_PCM_TRIGGER_RESUME:
		case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
			ret = snd_soc_link_trigger(substream, cmd);
			if (ret < 0)
				break;

(*)			ret = snd_soc_pcm_component_trigger(substream, cmd);
			if (ret < 0)
				break;

			ret = snd_soc_pcm_dai_trigger(substream, cmd);
			break;
		case SNDRV_PCM_TRIGGER_STOP:
		case SNDRV_PCM_TRIGGER_SUSPEND:
		case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
			ret = snd_soc_pcm_dai_trigger(substream, cmd);
			if (ret < 0)
				break;

			ret = snd_soc_pcm_component_trigger(substream, cmd);
			if (ret < 0)
				break;

			ret = snd_soc_link_trigger(substream, cmd);
			break;
		}
		...
	}

For example, if soc_pcm_trigger() failed at (*) point,
we need to rollback previous succeeded trigger.

This patch adds trigger mark for DAI/Component/Link,
and do STOP if START/RESUME/PAUSE_RELEASE were failed.

Because it need to use new rollback parameter,
we need to modify DAI/Component/Link trigger functions in the same time.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87a6uycssd.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2020-12-01 08:51:33 +09:00 committed by Mark Brown
parent a9faca15a6
commit 6374f493d9
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
8 changed files with 143 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
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_pcm_substream *mark_trigger;
struct snd_compr_stream *mark_compr_open;
void *mark_pm;
@ -486,7 +487,7 @@ int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream,
void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream,
int rollback);
int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream,
int cmd);
int cmd, int rollback);
int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,
void *stream);
void snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime *rtd,

4
include/sound/soc-dai.h
View File

@ -189,7 +189,8 @@ int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order);
int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order);
int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd);
int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream);
int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd);
int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
int rollback);
int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
int cmd);
@ -401,6 +402,7 @@ struct snd_soc_dai {
/* function mark */
struct snd_pcm_substream *mark_startup;
struct snd_pcm_substream *mark_hw_params;
struct snd_pcm_substream *mark_trigger;
struct snd_compr_stream *mark_compr_startup;
/* bit field */

3
include/sound/soc-link.h
View File

@ -21,8 +21,9 @@ int snd_soc_link_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params);
void snd_soc_link_hw_free(struct snd_pcm_substream *substream,
int rollback);
int snd_soc_link_trigger(struct snd_pcm_substream *substream, int cmd);
int snd_soc_link_trigger(struct snd_pcm_substream *substream, int cmd,
int rollback);
int snd_soc_link_compr_startup(struct snd_compr_stream *cstream);
void snd_soc_link_compr_shutdown(struct snd_compr_stream *cstream,
int rollback);

1
include/sound/soc.h
View File

@ -1042,6 +1042,7 @@ struct snd_soc_pcm_runtime {
/* function mark */
struct snd_pcm_substream *mark_startup;
struct snd_pcm_substream *mark_hw_params;
struct snd_pcm_substream *mark_trigger;
struct snd_compr_stream *mark_compr_startup;
/* bit field */

43
sound/soc/soc-component.c
View File

@ -1075,22 +1075,51 @@ void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream,
}
}
static int soc_component_trigger(struct snd_soc_component *component,
struct snd_pcm_substream *substream,
int cmd)
{
int ret = 0;
if (component->driver->trigger)
ret = component->driver->trigger(component, substream, cmd);
return soc_component_ret(component, ret);
}
int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream,
int cmd)
int cmd, int rollback)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_component *component;
int i, ret;
int i, r, ret = 0;
for_each_rtd_components(rtd, i, component) {
if (component->driver->trigger) {
ret = component->driver->trigger(component, substream, cmd);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
for_each_rtd_components(rtd, i, component) {
ret = soc_component_trigger(component, substream, cmd);
if (ret < 0)
return soc_component_ret(component, ret);
break;
soc_component_mark_push(component, substream, trigger);
}
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
for_each_rtd_components(rtd, i, component) {
if (rollback && !soc_component_mark_match(component, substream, trigger))
continue;
r = soc_component_trigger(component, substream, cmd);
if (r < 0)
ret = r; /* use last ret */
soc_component_mark_pop(component, substream, trigger);
}
}
return 0;
return ret;
}
int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,

44
sound/soc/soc-dai.c
View File

@ -564,23 +564,51 @@ int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream)
return 0;
}
static int soc_dai_trigger(struct snd_soc_dai *dai,
struct snd_pcm_substream *substream, int cmd)
{
int ret = 0;
if (dai->driver->ops &&
dai->driver->ops->trigger)
ret = dai->driver->ops->trigger(substream, cmd, dai);
return soc_dai_ret(dai, ret);
}
int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream,
int cmd)
int cmd, int rollback)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_dai *dai;
int i, ret;
int i, r, ret = 0;
for_each_rtd_dais(rtd, i, dai) {
if (dai->driver->ops &&
dai->driver->ops->trigger) {
ret = dai->driver->ops->trigger(substream, cmd, dai);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
for_each_rtd_dais(rtd, i, dai) {
ret = soc_dai_trigger(dai, substream, cmd);
if (ret < 0)
return soc_dai_ret(dai, ret);
break;
soc_dai_mark_push(dai, substream, trigger);
}
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
for_each_rtd_dais(rtd, i, dai) {
if (rollback && !soc_dai_mark_match(dai, substream, trigger))
continue;
r = soc_dai_trigger(dai, substream, cmd);
if (r < 0)
ret = r; /* use last ret */
soc_dai_mark_pop(dai, substream, trigger);
}
}
return 0;
return ret;
}
int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,

30
sound/soc/soc-link.c
View File

@ -141,7 +141,7 @@ void snd_soc_link_hw_free(struct snd_pcm_substream *substream, int rollback)
soc_link_mark_pop(rtd, substream, hw_params);
}
int snd_soc_link_trigger(struct snd_pcm_substream *substream, int cmd)
static int soc_link_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
int ret = 0;
@ -153,6 +153,34 @@ int snd_soc_link_trigger(struct snd_pcm_substream *substream, int cmd)
return soc_link_ret(rtd, ret);
}
int snd_soc_link_trigger(struct snd_pcm_substream *substream, int cmd,
int rollback)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
int ret = 0;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
ret = soc_link_trigger(substream, cmd);
if (ret < 0)
break;
soc_link_mark_push(rtd, substream, trigger);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if (rollback && !soc_link_mark_match(rtd, substream, trigger))
break;
ret = soc_link_trigger(substream, cmd);
soc_link_mark_pop(rtd, substream, startup);
}
return ret;
}
int snd_soc_link_compr_startup(struct snd_compr_stream *cstream)
{
struct snd_soc_pcm_runtime *rtd = cstream->private_data;

44
sound/soc/soc-pcm.c
View File

@ -1012,37 +1012,61 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
int ret = -EINVAL;
int ret = -EINVAL, _ret = 0;
int rollback = 0;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
ret = snd_soc_link_trigger(substream, cmd);
ret = snd_soc_link_trigger(substream, cmd, 0);
if (ret < 0)
break;
goto start_err;
ret = snd_soc_pcm_component_trigger(substream, cmd);
ret = snd_soc_pcm_component_trigger(substream, cmd, 0);
if (ret < 0)
break;
goto start_err;
ret = snd_soc_pcm_dai_trigger(substream, cmd);
break;
ret = snd_soc_pcm_dai_trigger(substream, cmd, 0);
start_err:
if (ret < 0)
rollback = 1;
}
if (rollback) {
_ret = ret;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
cmd = SNDRV_PCM_TRIGGER_STOP;
break;
case SNDRV_PCM_TRIGGER_RESUME:
cmd = SNDRV_PCM_TRIGGER_SUSPEND;
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
cmd = SNDRV_PCM_TRIGGER_PAUSE_PUSH;
break;
}
}
switch (cmd) {
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
ret = snd_soc_pcm_dai_trigger(substream, cmd);
ret = snd_soc_pcm_dai_trigger(substream, cmd, rollback);
if (ret < 0)
break;
ret = snd_soc_pcm_component_trigger(substream, cmd);
ret = snd_soc_pcm_component_trigger(substream, cmd, rollback);
if (ret < 0)
break;
ret = snd_soc_link_trigger(substream, cmd);
ret = snd_soc_link_trigger(substream, cmd, rollback);
break;
}
if (_ret)
ret = _ret;
return ret;
}