diff options
| author | Shengjiu Wang <shengjiu.wang@nxp.com> | 2021-03-12 05:38:40 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-03-25 16:58:06 +0300 |
| commit | 8bdfc0455e3a59e2c1207a56be22e910fae0e0d5 (patch) | |
| tree | 5bb8c4ea8be168416923feab08176d5cb75ee58c | |
| parent | 3f994c25868729fb63a4eef42a7040e563eff365 (diff) | |
| download | linux-8bdfc0455e3a59e2c1207a56be22e910fae0e0d5.tar.xz | |
ASoC: soc-component: Add snd_soc_pcm_component_ack
Add snd_soc_pcm_component_ack back, which can be used to get an
updated buffer pointer in the platform driver.
On Asymmetric multiprocessor, this pointer can be sent to Cortex-M
core for audio processing.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1615516725-4975-2-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | include/sound/soc-component.h | 3 | ||||
| -rw-r--r-- | sound/soc/soc-component.c | 14 | ||||
| -rw-r--r-- | sound/soc/soc-pcm.c | 2 |
3 files changed, 19 insertions, 0 deletions
diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h index 7dc75b39287f..722cfab28d29 100644 --- a/include/sound/soc-component.h +++ b/include/sound/soc-component.h @@ -146,6 +146,8 @@ struct snd_soc_component_driver { int (*mmap)(struct snd_soc_component *component, struct snd_pcm_substream *substream, struct vm_area_struct *vma); + int (*ack)(struct snd_soc_component *component, + struct snd_pcm_substream *substream); const struct snd_compress_ops *compress_ops; @@ -498,5 +500,6 @@ 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, void *stream, int rollback); +int snd_soc_pcm_component_ack(struct snd_pcm_substream *substream); #endif /* __SOC_COMPONENT_H */ diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c index 8415e9bd2932..3a5e84e16a87 100644 --- a/sound/soc/soc-component.c +++ b/sound/soc/soc-component.c @@ -1212,3 +1212,17 @@ void snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime *rtd, soc_component_mark_pop(component, stream, pm); } } + +int snd_soc_pcm_component_ack(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_component *component; + int i; + + /* FIXME: use 1st pointer */ + for_each_rtd_components(rtd, i, component) + if (component->driver->ack) + return component->driver->ack(component, substream); + + return 0; +} diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 2df70ab851ea..02968a4e52b4 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -2772,6 +2772,8 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) rtd->ops.page = snd_soc_pcm_component_page; if (drv->mmap) rtd->ops.mmap = snd_soc_pcm_component_mmap; + if (drv->ack) + rtd->ops.ack = snd_soc_pcm_component_ack; } if (playback) |