hal: Fix sidetone sequence during voice call
When sidetone is enabled during voice call, the RX and TX path mixer
controls are issued back to back, this causes the codec path to be
enabled from TX to RX as the internal loopback for sidetone exists. Due
to enabling this path, pop noise is observed on headphones. This issue
is fixed by treating sidetone as special case and changing the enable
and disable sequence of sidetone mixer controls.
CRs-fixed: 839663
Change-Id: I7aea55af963cf939286e5b349ff25fd783314679
diff --git a/hal/voice.h b/hal/voice.h
index 5a9cce1..139a8c8 100644
--- a/hal/voice.h
+++ b/hal/voice.h
@@ -95,4 +95,8 @@
struct stream_in *in);
void voice_update_devices_for_all_voice_usecases(struct audio_device *adev);
snd_device_t voice_get_incall_rec_snd_device(snd_device_t in_snd_device);
+void voice_set_sidetone(struct audio_device *adev,
+ snd_device_t out_snd_device,
+ bool enable);
+bool voice_is_call_state_active(struct audio_device *adev);
#endif //VOICE_H