ASoC: wm_adsp: Parse HOST_BUFFER controls

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Currently the compressed streams in DSP firmwares are
identified essentially by looking at a fixed location inside
the firmware. This is fragile and also limits things to a
single compressed stream.

Here a new form of firmware parameter is added, the HOST_BUFFER
which identifies a compressed stream from meta-data in the
firmware file. This is more robust and allows for the possiblity
of using multiple streams per core in the future. Currently the
implementation is still limited to a single stream and will
use the first HOST_BUFFER parameter encountered. If there aren't
any HOST_BUFFER parameters it will fall back to the legacy way
of finding the host buffer.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Richard Fitzgerald 2018-07-19 11:50:39 +01:00 • committed by Mark Brown

parent 3bbc2705a3

commit d52ed4b0bc

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66

sound/soc/codecs/wm_adsp.c

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1

sound/soc/codecs/wmfw.h

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