audio/msm8660: Fix to avoid routing in voice call

-If a device selected for media playback is other than the
current active device selected to route voice call, routing
is switched to that device.
-Avoid routing in such cases if device to route is different from
current device for voice call.

Change-Id: I6d4e7a667b1949a5bc45e19c2f7b3a4555b6bbfe
CRs-Fixed: 397595

1 files changed, 8 insertions, 0 deletions

diff --git a/msm8660/AudioPolicyManager.cpp b/msm8660/AudioPolicyManager.cpp
index f505e726..6e70897a 100755
--- a/msm8660/AudioPolicyManager.cpp
+++ b/msm8660/AudioPolicyManager.cpp
@@ -262,6 +262,14 @@ audio_devices_t AudioPolicyManager::getDeviceForStrategy(routing_strategy strate
            device |= AudioSystem::DEVICE_OUT_ANC_HEADPHONE;
        }
 #endif
+       // Do not play media stream if in call and the requested device would change the hardware
+       // output routing
+       if (mPhoneState == AudioSystem::MODE_IN_CALL &&
+          !AudioSystem::isA2dpDevice((AudioSystem::audio_devices)device) &&
+           device != getDeviceForStrategy(STRATEGY_PHONE)) {
+           device = getDeviceForStrategy(STRATEGY_PHONE);
+           ALOGV("getDeviceForStrategy() incompatible media and phone devices");
+       }
        if (device == 0) {
            ALOGE("getDeviceForStrategy() no device found for STRATEGY_MEDIA");
        }