diff --git a/graphics/composer/2.1/utils/hal/Android.bp b/graphics/composer/2.1/utils/hal/Android.bp
new file mode 100644
index 0000000..35ddc0a
--- /dev/null
+++ b/graphics/composer/2.1/utils/hal/Android.bp
@@ -0,0 +1,29 @@
+//
+// Copyright (C) 2018 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.
+
+cc_library_headers {
+    name: "android.hardware.graphics.composer@2.1-hal",
+    defaults: ["hidl_defaults"],
+    vendor_available: true,
+    shared_libs: [
+        "android.hardware.graphics.composer@2.1",
+        "libhardware", // TODO remove hwcomposer2.h dependency
+    ],
+    export_shared_lib_headers: [
+        "android.hardware.graphics.composer@2.1",
+        "libhardware",
+    ],
+    export_include_dirs: ["include"],
+}
diff --git a/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerHal.h b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerHal.h
new file mode 100644
index 0000000..3956ecd
--- /dev/null
+++ b/graphics/composer/2.1/utils/hal/include/composer-hal/2.1/ComposerHal.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2018 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.
+ */
+
+#pragma once
+
+#include <android/hardware/graphics/composer/2.1/IComposer.h>
+#include <android/hardware/graphics/composer/2.1/IComposerClient.h>
+
+// TODO remove hwcomposer2.h dependency
+#define HWC2_INCLUDE_STRINGIFICATION
+#define HWC2_USE_CPP11
+#include <hardware/hwcomposer2.h>
+#undef HWC2_INCLUDE_STRINGIFICATION
+#undef HWC2_USE_CPP11
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_1 {
+namespace hal {
+
+using common::V1_0::ColorMode;
+using common::V1_0::ColorTransform;
+using common::V1_0::Dataspace;
+using common::V1_0::Hdr;
+using common::V1_0::PixelFormat;
+using common::V1_0::Transform;
+
+// TODO remove removeClient and better support for callback
+class ComposerHal {
+   public:
+    virtual ~ComposerHal() = default;
+
+    virtual bool hasCapability(hwc2_capability_t capability) = 0;
+
+    virtual void removeClient() = 0;
+    virtual void enableCallback(bool enable) = 0;
+    virtual uint32_t getMaxVirtualDisplayCount() = 0;
+    virtual Error createVirtualDisplay(uint32_t width, uint32_t height, PixelFormat* format,
+                                       Display* outDisplay) = 0;
+    virtual Error destroyVirtualDisplay(Display display) = 0;
+    virtual Error createLayer(Display display, Layer* outLayer) = 0;
+    virtual Error destroyLayer(Display display, Layer layer) = 0;
+
+    virtual Error getActiveConfig(Display display, Config* outConfig) = 0;
+    virtual Error getClientTargetSupport(Display display, uint32_t width, uint32_t height,
+                                         PixelFormat format, Dataspace dataspace) = 0;
+    virtual Error getColorModes(Display display, hidl_vec<ColorMode>* outModes) = 0;
+    virtual Error getDisplayAttribute(Display display, Config config,
+                                      IComposerClient::Attribute attribute, int32_t* outValue) = 0;
+    virtual Error getDisplayConfigs(Display display, hidl_vec<Config>* outConfigs) = 0;
+    virtual Error getDisplayName(Display display, hidl_string* outName) = 0;
+    virtual Error getDisplayType(Display display, IComposerClient::DisplayType* outType) = 0;
+    virtual Error getDozeSupport(Display display, bool* outSupport) = 0;
+    virtual Error getHdrCapabilities(Display display, hidl_vec<Hdr>* outTypes,
+                                     float* outMaxLuminance, float* outMaxAverageLuminance,
+                                     float* outMinLuminance) = 0;
+
+    virtual Error setActiveConfig(Display display, Config config) = 0;
+    virtual Error setColorMode(Display display, ColorMode mode) = 0;
+    virtual Error setPowerMode(Display display, IComposerClient::PowerMode mode) = 0;
+    virtual Error setVsyncEnabled(Display display, IComposerClient::Vsync enabled) = 0;
+
+    virtual Error setColorTransform(Display display, const float* matrix, int32_t hint) = 0;
+    virtual Error setClientTarget(Display display, buffer_handle_t target, int32_t acquireFence,
+                                  int32_t dataspace, const std::vector<hwc_rect_t>& damage) = 0;
+    virtual Error setOutputBuffer(Display display, buffer_handle_t buffer,
+                                  int32_t releaseFence) = 0;
+    virtual Error validateDisplay(Display display, std::vector<Layer>* outChangedLayers,
+                                  std::vector<IComposerClient::Composition>* outCompositionTypes,
+                                  uint32_t* outDisplayRequestMask,
+                                  std::vector<Layer>* outRequestedLayers,
+                                  std::vector<uint32_t>* outRequestMasks) = 0;
+    virtual Error acceptDisplayChanges(Display display) = 0;
+    virtual Error presentDisplay(Display display, int32_t* outPresentFence,
+                                 std::vector<Layer>* outLayers,
+                                 std::vector<int32_t>* outReleaseFences) = 0;
+
+    virtual Error setLayerCursorPosition(Display display, Layer layer, int32_t x, int32_t y) = 0;
+    virtual Error setLayerBuffer(Display display, Layer layer, buffer_handle_t buffer,
+                                 int32_t acquireFence) = 0;
+    virtual Error setLayerSurfaceDamage(Display display, Layer layer,
+                                        const std::vector<hwc_rect_t>& damage) = 0;
+    virtual Error setLayerBlendMode(Display display, Layer layer, int32_t mode) = 0;
+    virtual Error setLayerColor(Display display, Layer layer, IComposerClient::Color color) = 0;
+    virtual Error setLayerCompositionType(Display display, Layer layer, int32_t type) = 0;
+    virtual Error setLayerDataspace(Display display, Layer layer, int32_t dataspace) = 0;
+    virtual Error setLayerDisplayFrame(Display display, Layer layer, const hwc_rect_t& frame) = 0;
+    virtual Error setLayerPlaneAlpha(Display display, Layer layer, float alpha) = 0;
+    virtual Error setLayerSidebandStream(Display display, Layer layer, buffer_handle_t stream) = 0;
+    virtual Error setLayerSourceCrop(Display display, Layer layer, const hwc_frect_t& crop) = 0;
+    virtual Error setLayerTransform(Display display, Layer layer, int32_t transform) = 0;
+    virtual Error setLayerVisibleRegion(Display display, Layer layer,
+                                        const std::vector<hwc_rect_t>& visible) = 0;
+    virtual Error setLayerZOrder(Display display, Layer layer, uint32_t z) = 0;
+};
+
+}  // namespace hal
+}  // namespace V2_1
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android