diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2020-12-01 02:51:33 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-12-09 15:13:38 +0300 |
| commit | 6374f493d93b2232444b94989c380d5aada5b810 (patch) | |
| tree | f0ce8423cb1f5a532caae32724408427a84c2a63 /sound/soc/soc-pcm.c | |
| parent | a9faca15a644ff754a9d6e3c9e81f91cb8ca59bd (diff) | |
| download | linux-6374f493d93b2232444b94989c380d5aada5b810.tar.xz | |
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>
Diffstat (limited to 'sound/soc/soc-pcm.c')
| -rw-r--r-- | sound/soc/soc-pcm.c | 42 |
1 files changed, 33 insertions, 9 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 707c1a49f6b2..ee51dc7fd893 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1012,37 +1012,61 @@ out: 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, 0); + if (ret < 0) + goto start_err; - ret = snd_soc_pcm_component_trigger(substream, cmd); + 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; + } + } - ret = snd_soc_pcm_dai_trigger(substream, cmd); - 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; } |