tree 03d2f18ac8b29373687e26e4c898912ce8789e27
parent c80b6a05cb9a577ba040c3ad9c96bcf295630557
author LiuShang <liushang@thundersoft.com> 1424168411 +0800
committer Maarten Derks <maarten@fairphone.com> 1634651011 +0200

Enable microphone selection

Expose the device's microphones for testing purposes through the
HAL. One has to pass a specific parameter to the `AudioManager`,
namely 'fp_test'. Accepted values are:
* 'primary_mic'
* 'secondary_mic'
* any other value to disable the microphone selection and reset
  the default behaviour

Note that there is no safeguard check, if one selects a microphone,
the test mode will be entered and will only be left when the
`AudioManager` receiveds the third possible 'fp_test' value.

Issue: FPIIM-641
Issue: FP2N-293
Issue: FP2P-275
Issue: FP2A10-65
Change-Id: I291162ca42c200ff3bed62901f71aa84ebc5ccb6
Depends-On: I5c4067702910a269386c6517d9368012066da976
(cherry picked from commit 18954bcc189e1f405afb1b9bd650cd631d24afbe)