greybus: audio: Register CPorts for specific directions

Browse source

Currently, it is assumed that all audio data CPorts registered on
APB1 are used for transmitting audio data.  That may not always be
true like when a microphone is connected but no speakers.  Also,
the current special protocol lacks a way to tell APB1 whether the CPort
being registered is for transmitting, receiving, or both.

Fix by adding a 'direction' field to the register and unregister CPort
requests and define bits indicating which direction (or both) audio
data will go on that CPort.

Signed-off-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

...

This commit is contained in:

Mark Greer 2016-02-26 17:04:36 -07:00 • committed by Greg Kroah-Hartman

parent 611924dd72

commit 4a8e519902

4 changed files with 21 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

8

drivers/staging/greybus/audio_apbridgea.c

View file

5

drivers/staging/greybus/audio_apbridgea.h

View file

9

drivers/staging/greybus/audio_codec.c

View file

6

drivers/staging/greybus/audio_codec.h

View file