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15-Apr-2016 |
John Muir <muirj@google.com> |
CRAS: Enhance mixer name DL lists to include direction and type.
Add direction and type to the struct mixer_name so that more
information can be provided along with the mixer control's name.
This then simplifies passing the mixer control data from UCM to
other parts of CRAS.
Move definition of struct mixer_name into
server/cras_alsa_mixer_name.h, and create some utilities for
manipulating those DL lists, and finding items with matching
direction, name, and/or type.
Modify the cras_alsa_mixer and cras_alsa_card code to use these
new interfaces and clean-up the code a bit.
This new functionality will be of more use when it comes to
providing the list of all valid controls, what they are for
(type), and their direction when the UCM files fully define the
ALSA controls used by CRAS.
BUG=None
TEST=Pass all unit tests.
Add unit test for cras_alsa_mixer_name.
Change-Id: I8c67c6fca36e5373fd18bea2f4e37c39a0b006e2
Reviewed-on: https://chromium-review.googlesource.com/339406
Commit-Ready: John Muir <muirj@google.com>
Tested-by: John Muir <muirj@google.com>
Reviewed-by: Cheng-Yi Chiang <cychiang@chromium.org>
/external/adhd/cras/src/server/cras_alsa_mixer_name.h
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