diff --git a/audio/effect/2.0/Android.mk b/audio/effect/2.0/Android.mk
new file mode 100644
index 0000000..a30de1c
--- /dev/null
+++ b/audio/effect/2.0/Android.mk
@@ -0,0 +1,51 @@
+# This file is autogenerated by hidl-gen. Do not edit manually.
+
+LOCAL_PATH := $(call my-dir)
+
+################################################################################
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.audio.effect@2.0-java-constants
+LOCAL_MODULE_CLASS := JAVA_LIBRARIES
+
+intermediates := $(local-generated-sources-dir)
+
+HIDL := $(HOST_OUT_EXECUTABLES)/hidl-gen$(HOST_EXECUTABLE_SUFFIX)
+#
+GEN := $(intermediates)/android/hardware/audio/effect/2.0/Constants.java
+$(GEN): $(HIDL)
+$(GEN): $(LOCAL_PATH)/types.hal
+$(GEN): $(LOCAL_PATH)/IAcousticEchoCancelerEffect.hal
+$(GEN): $(LOCAL_PATH)/IAutomaticGainControlEffect.hal
+$(GEN): $(LOCAL_PATH)/IBassBoostEffect.hal
+$(GEN): $(LOCAL_PATH)/IDownmixEffect.hal
+$(GEN): $(LOCAL_PATH)/IEffect.hal
+$(GEN): $(LOCAL_PATH)/IEffectBufferProviderCallback.hal
+$(GEN): $(LOCAL_PATH)/IEffectsFactory.hal
+$(GEN): $(LOCAL_PATH)/IEnvironmentalReverbEffect.hal
+$(GEN): $(LOCAL_PATH)/IEqualizerEffect.hal
+$(GEN): $(LOCAL_PATH)/ILoudnessEnhancerEffect.hal
+$(GEN): $(LOCAL_PATH)/INoiseSuppressionEffect.hal
+$(GEN): $(LOCAL_PATH)/IPresetReverbEffect.hal
+$(GEN): $(LOCAL_PATH)/IVirtualizerEffect.hal
+$(GEN): $(LOCAL_PATH)/IVisualizerEffect.hal
+
+$(GEN): PRIVATE_HIDL := $(HIDL)
+$(GEN): PRIVATE_OUTPUT_DIR := $(intermediates)
+$(GEN): PRIVATE_CUSTOM_TOOL = \
+        $(PRIVATE_HIDL) -o $(PRIVATE_OUTPUT_DIR) \
+        -Ljava-constants -randroid.hardware:hardware/interfaces \
+        android.hardware.audio.effect@2.0
+
+$(GEN):
+	$(transform-generated-source)
+LOCAL_GENERATED_SOURCES += $(GEN)
+# Avoid dependency cycle of framework.jar -> this-library -> framework.jar
+LOCAL_NO_STANDARD_LIBRARIES := true
+LOCAL_JAVA_LIBRARIES := core-oj
+
+include $(BUILD_STATIC_JAVA_LIBRARY)
+
+
+
+include $(call all-makefiles-under,$(LOCAL_PATH))