1 files changed, 21 insertions, 9 deletions

diff --git a/core/java/android/hardware/camera2/CameraManager.java b/core/java/android/hardware/camera2/CameraManager.java
index 1b150bfca63a..90bf896c2225 100644
--- a/core/java/android/hardware/camera2/CameraManager.java
+++ b/core/java/android/hardware/camera2/CameraManager.java
@@ -16,28 +16,29 @@
 
 package android.hardware.camera2;
 
-import android.annotation.RequiresPermission;
-import android.annotation.SystemService;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.RequiresPermission;
+import android.annotation.SystemService;
 import android.content.Context;
-import android.hardware.ICameraService;
-import android.hardware.ICameraServiceListener;
 import android.hardware.CameraInfo;
 import android.hardware.CameraStatus;
+import android.hardware.ICameraService;
+import android.hardware.ICameraServiceListener;
 import android.hardware.camera2.impl.CameraMetadataNative;
 import android.hardware.camera2.legacy.CameraDeviceUserShim;
 import android.hardware.camera2.legacy.LegacyMetadataMapper;
-import android.os.IBinder;
 import android.os.Binder;
 import android.os.DeadObjectException;
 import android.os.Handler;
+import android.os.IBinder;
 import android.os.Looper;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.ServiceSpecificException;
-import android.util.Log;
+import android.os.SystemProperties;
 import android.util.ArrayMap;
+import android.util.Log;
 
 import java.util.ArrayList;
 
@@ -210,7 +211,9 @@ public final class CameraManager {
     public CameraCharacteristics getCameraCharacteristics(@NonNull String cameraId)
             throws CameraAccessException {
         CameraCharacteristics characteristics = null;
-
+        if (CameraManagerGlobal.sCameraServiceDisabled) {
+            throw new IllegalArgumentException("No cameras available on device");
+        }
         synchronized (mLock) {
             /*
              * Get the camera characteristics from the camera service directly if it supports it,
@@ -462,6 +465,9 @@ public final class CameraManager {
                         "Handler argument is null, but no looper exists in the calling thread");
             }
         }
+        if (CameraManagerGlobal.sCameraServiceDisabled) {
+            throw new IllegalArgumentException("No cameras available on device");
+        }
 
         openCameraDeviceUserAsync(cameraId, callback, handler, clientUid);
     }
@@ -507,6 +513,9 @@ public final class CameraManager {
      */
     public void setTorchMode(@NonNull String cameraId, boolean enabled)
             throws CameraAccessException {
+        if (CameraManagerGlobal.sCameraServiceDisabled) {
+            throw new IllegalArgumentException("No cameras available on device");
+        }
         CameraManagerGlobal.get().setTorchMode(cameraId, enabled);
     }
 
@@ -745,6 +754,9 @@ public final class CameraManager {
         private CameraManagerGlobal() {
         }
 
+        public static final boolean sCameraServiceDisabled =
+                SystemProperties.getBoolean("config.disable_cameraservice", false);
+
         public static CameraManagerGlobal get() {
             return gCameraManager;
         }
@@ -764,7 +776,7 @@ public final class CameraManager {
         public ICameraService getCameraService() {
             synchronized(mLock) {
                 connectCameraServiceLocked();
-                if (mCameraService == null) {
+                if (mCameraService == null && !sCameraServiceDisabled) {
                     Log.e(TAG, "Camera service is unavailable");
                 }
                 return mCameraService;
@@ -779,7 +791,7 @@ public final class CameraManager {
          */
         private void connectCameraServiceLocked() {
             // Only reconnect if necessary
-            if (mCameraService != null) return;
+            if (mCameraService != null || sCameraServiceDisabled) return;
 
             Log.i(TAG, "Connecting to camera service");