diff --git a/include/media/DrmHal.h b/include/media/DrmHal.h
new file mode 100644
index 0000000..aaea2c9
--- /dev/null
+++ b/include/media/DrmHal.h
@@ -0,0 +1,181 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+
+#ifndef DRM_HAL_H_
+
+#define DRM_HAL_H_
+
+#include <android/hardware/drm/1.0/IDrmPlugin.h>
+#include <android/hardware/drm/1.0/IDrmPluginListener.h>
+#include <android/hardware/drm/1.0/IDrmFactory.h>
+
+#include <media/IDrm.h>
+#include <media/IDrmClient.h>
+#include <utils/threads.h>
+
+using ::android::hardware::drm::V1_0::EventType;
+using ::android::hardware::drm::V1_0::IDrmFactory;
+using ::android::hardware::drm::V1_0::IDrmPlugin;
+using ::android::hardware::drm::V1_0::IDrmPluginListener;
+using ::android::hardware::drm::V1_0::KeyStatus;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+namespace android {
+
+struct DrmSessionClientInterface;
+
+struct DrmHal : public BnDrm,
+             public IBinder::DeathRecipient,
+             public IDrmPluginListener {
+    DrmHal();
+    virtual ~DrmHal();
+
+    virtual status_t initCheck() const;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType);
+
+    virtual status_t createPlugin(const uint8_t uuid[16]);
+
+    virtual status_t destroyPlugin();
+
+    virtual status_t openSession(Vector<uint8_t> &sessionId);
+
+    virtual status_t closeSession(Vector<uint8_t> const &sessionId);
+
+    virtual status_t
+        getKeyRequest(Vector<uint8_t> const &sessionId,
+                      Vector<uint8_t> const &initData,
+                      String8 const &mimeType, DrmPlugin::KeyType keyType,
+                      KeyedVector<String8, String8> const &optionalParameters,
+                      Vector<uint8_t> &request, String8 &defaultUrl,
+                      DrmPlugin::KeyRequestType *keyRequestType);
+
+    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
+                                        Vector<uint8_t> const &response,
+                                        Vector<uint8_t> &keySetId);
+
+    virtual status_t removeKeys(Vector<uint8_t> const &keySetId);
+
+    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
+                                 Vector<uint8_t> const &keySetId);
+
+    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
+                                    KeyedVector<String8, String8> &infoMap) const;
+
+    virtual status_t getProvisionRequest(String8 const &certType,
+                                         String8 const &certAuthority,
+                                         Vector<uint8_t> &request,
+                                         String8 &defaulUrl);
+
+    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
+                                              Vector<uint8_t> &certificate,
+                                              Vector<uint8_t> &wrappedKey);
+
+    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops);
+    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop);
+
+    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease);
+    virtual status_t releaseAllSecureStops();
+
+    virtual status_t getPropertyString(String8 const &name, String8 &value ) const;
+    virtual status_t getPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> &value ) const;
+    virtual status_t setPropertyString(String8 const &name, String8 const &value ) const;
+    virtual status_t setPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> const &value ) const;
+
+    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                        String8 const &algorithm);
+
+    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                                     String8 const &algorithm);
+
+    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output);
+
+    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output);
+
+    virtual status_t sign(Vector<uint8_t> const &sessionId,
+                          Vector<uint8_t> const &keyId,
+                          Vector<uint8_t> const &message,
+                          Vector<uint8_t> &signature);
+
+    virtual status_t verify(Vector<uint8_t> const &sessionId,
+                            Vector<uint8_t> const &keyId,
+                            Vector<uint8_t> const &message,
+                            Vector<uint8_t> const &signature,
+                            bool &match);
+
+    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
+                             String8 const &algorithm,
+                             Vector<uint8_t> const &message,
+                             Vector<uint8_t> const &wrappedKey,
+                             Vector<uint8_t> &signature);
+
+    virtual status_t setListener(const sp<IDrmClient>& listener);
+
+    // Methods of IDrmPluginListener
+    Return<void> sendEvent(EventType eventType,
+            const hidl_vec<uint8_t>& sessionId, const hidl_vec<uint8_t>& data);
+
+    Return<void> sendExpirationUpdate(const hidl_vec<uint8_t>& sessionId,
+            int64_t expiryTimeInMS);
+
+    Return<void> sendKeysChange(const hidl_vec<uint8_t>& sessionId,
+            const hidl_vec<KeyStatus>& keyStatusList, bool hasNewUsableKey);
+
+    virtual void binderDied(const wp<IBinder> &the_late_who);
+
+private:
+    static Mutex mLock;
+
+    sp<DrmSessionClientInterface> mDrmSessionClient;
+
+    sp<IDrmClient> mListener;
+    mutable Mutex mEventLock;
+    mutable Mutex mNotifyLock;
+
+    sp<IDrmFactory> mFactory;
+    sp<IDrmPlugin> mPlugin;
+
+    /**
+     * mInitCheck is:
+     *   NO_INIT if a plugin hasn't been created yet
+     *   ERROR_UNSUPPORTED if a plugin can't be created for the uuid
+     *   OK after a plugin has been created and mPlugin is valid
+     */
+    status_t mInitCheck;
+
+    sp<IDrmFactory> makeDrmFactory();
+    sp<IDrmPlugin> makeDrmPlugin(const uint8_t uuid[16]);
+
+    void writeByteArray(Parcel &obj, const hidl_vec<uint8_t>& array);
+
+    DISALLOW_EVIL_CONSTRUCTORS(DrmHal);
+};
+
+}  // namespace android
+
+#endif  // DRM_HAL_H_