greybus: audio: Add topology parser for GB codec

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For each GB codec module inserted, DAPM widgets, kcontrols, routes
and DAIs can be fetched through greybus in a binary chunk and parsed
locally to create & populate DAPM graph for the specific module.

It is required by each codec module to populate a minimum set of
kcontrols with fixed names to support basic audio usecase.
To support advanced features of codec module, the same can be polpulated
with existing topology parser. However, to use them for different usecase
separate mechanism (may be via MSP) is required to inform userspace about
their configuration value & enable/disable sequence.

ToDos:
Currently, support for enumerated kcontrol/dapm control is hardcoded.
Need to add complete logic within the parser.

Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Signed-off-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

...

This commit is contained in:

Vaibhav Agarwal 2016-01-13 14:07:51 -07:00 • committed by Greg Kroah-Hartman

parent 2a70e49f91

commit 6339d2322c

4 changed files with 1191 additions and 210 deletions

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2

drivers/staging/greybus/Makefile

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254

drivers/staging/greybus/audio_codec.c

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31

drivers/staging/greybus/audio_codec.h

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1114

drivers/staging/greybus/audio_topology.c

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