A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 02:32:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

ASoC: dmaengine_pcm: add processing support

Browse source 
Allow dmaengine client to optionally register a processing callback.
This callback is intended to apply processing
on samples in buffer copied from/to user space, before/after DMA transfer.

Signed-off-by: Olivier Moysan <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
This commit is contained in:
Olivier Moysan 2018-02-19 16:00:36 +01:00 • committed by Mark Brown
commit 78648092ef
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
2 changed files with 63 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

3
include/sound/dmaengine_pcm.h
View file

@ -140,6 +140,9 @@ struct snd_dmaengine_pcm_config {
struct dma_chan *(*compat_request_channel)(
struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_substream *substream);
int (*process)(struct snd_pcm_substream *substream,
int channel, unsigned long hwoff,
void *buf, unsigned long bytes);
dma_filter_fn compat_filter_fn;
struct device *dma_dev;
const char *chan_names[SNDRV_PCM_STREAM_LAST + 1];