tree 9e9bb5ebc3d387c8cb7f4b42936b08354ece14c5
parent f0877a9e46b94763f3a12a60b8bfe22af50be44a
author kunleiz <kunleiz@codeaurora.org> 1528973296 +0800
committer Gerrit - the friendly Code Review server <code-review@localhost> 1534302373 -0700

hal: use handset-mic as input device when USB headset is unplugged.

During VoIP call, when USB headset is unplugged, AUDIO_DEVICE_OUT_USB_DEVICE
is first disconnected. This causes compress-voip stops, and other active
playback usecases output devices route to handset. But input device still
routes to AUDIO_DEVICE_IN_USB_HEADSET. When device restore happens, input
device selects AUDIO_DEVICE_IN_USB_HEADSET even if USB headset is not existed.
This causes mute issue happens.

Fix it by checking USB headset device state to select handset as input device
when USB headset is unplugged.

CRs-Fixed: 2264971
Change-Id: I69b2f0f030309a28256cf69330f85069994f3ea0