Add sound trigger control by audio policy

Audio policy:
- Added active capture indication to sound trigger service:
recognition stops if concurrent capture is not supported.
- Added generation of reserved I/O handle and session ID for
utterance capture.

Sound trigger service
- Added sound model update callback handling.
- Added service state callback
- Simplified callback shared memory allocation.

Bug: 12378680.

Change-Id: Ib0292c2733e6df90fdae480633dd9953d0016ef1

1 files changed, 20 insertions, 0 deletions

diff --git a/services/audiopolicy/AudioPolicyInterfaceImpl.cpp b/services/audiopolicy/AudioPolicyInterfaceImpl.cpp
index 75745b3..2c51e25 100644
--- a/services/audiopolicy/AudioPolicyInterfaceImpl.cpp
+++ b/services/audiopolicy/AudioPolicyInterfaceImpl.cpp
@@ -531,4 +531,24 @@ status_t AudioPolicyService::setAudioPortConfig(const struct audio_port_config *
     return mAudioPolicyManager->setAudioPortConfig(config);
 }
 
+status_t AudioPolicyService::acquireSoundTriggerSession(audio_session_t *session,
+                                       audio_io_handle_t *ioHandle,
+                                       audio_devices_t *device)
+{
+    if (mAudioPolicyManager == NULL) {
+        return NO_INIT;
+    }
+
+    return mAudioPolicyManager->acquireSoundTriggerSession(session, ioHandle, device);
+}
+
+status_t AudioPolicyService::releaseSoundTriggerSession(audio_session_t session)
+{
+    if (mAudioPolicyManager == NULL) {
+        return NO_INIT;
+    }
+
+    return mAudioPolicyManager->releaseSoundTriggerSession(session);
+}
+
 }; // namespace android