ASoC: dmaengine_pcm: add processing support

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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 <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Olivier Moysan 2018-02-19 16:00:36 +01:00 • committed by Mark Brown

parent 7ed310bd51

commit 78648092ef

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2 changed files with 63 additions and 2 deletions

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3

include/sound/dmaengine_pcm.h

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62

sound/soc/soc-generic-dmaengine-pcm.c

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