diff --git a/camera/aidl/android/hardware/CameraSessionStats.aidl b/camera/aidl/android/hardware/CameraSessionStats.aidl
new file mode 100644
index 0000000..a8e6774
--- /dev/null
+++ b/camera/aidl/android/hardware/CameraSessionStats.aidl
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware;
+
+/** @hide */
+parcelable CameraSessionStats cpp_header "camera/CameraSessionStats.h";
diff --git a/camera/aidl/android/hardware/ICameraServiceProxy.aidl b/camera/aidl/android/hardware/ICameraServiceProxy.aidl
index 7575948..d428b4e 100644
--- a/camera/aidl/android/hardware/ICameraServiceProxy.aidl
+++ b/camera/aidl/android/hardware/ICameraServiceProxy.aidl
@@ -16,11 +16,11 @@
 
 package android.hardware;
 
+import android.hardware.CameraSessionStats;
+
 /**
  * Binder interface for the camera service proxy running in system_server.
  *
- * Keep in sync with frameworks/av/include/camera/ICameraServiceProxy.h
- *
  * @hide
  */
 interface ICameraServiceProxy
@@ -30,30 +30,9 @@
      */
     oneway void pingForUserUpdate();
 
-    /**
-     * Values for notifyCameraState newCameraState
-     */
-    const int CAMERA_STATE_OPEN = 0;
-    const int CAMERA_STATE_ACTIVE = 1;
-    const int CAMERA_STATE_IDLE = 2;
-    const int CAMERA_STATE_CLOSED = 3;
-
-    /**
-     * Values for notifyCameraState facing
-     */
-    const int CAMERA_FACING_BACK = 0;
-    const int CAMERA_FACING_FRONT = 1;
-    const int CAMERA_FACING_EXTERNAL = 2;
-
-    /**
-     * Values for notifyCameraState api level
-     */
-     const int CAMERA_API_LEVEL_1 = 1;
-     const int CAMERA_API_LEVEL_2 = 2;
 
     /**
      * Update the status of a camera device.
      */
-    oneway void notifyCameraState(String cameraId, int facing, int newCameraState,
-            String clientName, int apiLevel);
+    oneway void notifyCameraState(in CameraSessionStats cameraSessionStats);
 }
diff --git a/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl b/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
index b183ccc..28a57bd 100644
--- a/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
+++ b/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
@@ -83,9 +83,11 @@
      * @param operatingMode The kind of session to create; either NORMAL_MODE or
      *     CONSTRAINED_HIGH_SPEED_MODE. Must be a non-negative value.
      * @param sessionParams Session wide camera parameters
+     * @param startTimeMs The timestamp of session creation start, measured by
+     *                    SystemClock.uptimeMillis.
      * @return a list of stream ids that can be used in offline mode via "switchToOffline"
      */
-    int[] endConfigure(int operatingMode, in CameraMetadataNative sessionParams);
+    int[] endConfigure(int operatingMode, in CameraMetadataNative sessionParams, long startTimeMs);
 
     /**
       * Check whether a particular session configuration has camera device