diff --git a/cas/1.0/default/CasImpl.h b/cas/1.0/default/CasImpl.h
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+++ b/cas/1.0/default/CasImpl.h
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+/*
+ * 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 ANDROID_HARDWARE_CAS_V1_0_CAS_IMPL_H_
+#define ANDROID_HARDWARE_CAS_V1_0_CAS_IMPL_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <android/hardware/cas/1.0/ICas.h>
+
+namespace android {
+struct CasPlugin;
+
+namespace hardware {
+namespace cas {
+namespace V1_0 {
+struct ICasListener;
+namespace implementation {
+
+class SharedLibrary;
+
+class CasImpl : public ICas {
+public:
+    CasImpl(const sp<ICasListener> &listener);
+    virtual ~CasImpl();
+
+    static void OnEvent(
+            void *appData,
+            int32_t event,
+            int32_t arg,
+            uint8_t *data,
+            size_t size);
+
+    void init(const sp<SharedLibrary>& library, CasPlugin *plugin);
+    void onEvent(
+            int32_t event,
+            int32_t arg,
+            uint8_t *data,
+            size_t size);
+
+    // ICas inherits
+
+    virtual Return<Status> setPrivateData(
+            const HidlCasData& pvtData) override;
+
+    virtual Return<void> openSession(
+            openSession_cb _hidl_cb) override;
+
+    virtual Return<Status> closeSession(
+            const HidlCasSessionId& sessionId) override;
+
+    virtual Return<Status> setSessionPrivateData(
+            const HidlCasSessionId& sessionId,
+            const HidlCasData& pvtData) override;
+
+    virtual Return<Status> processEcm(
+            const HidlCasSessionId& sessionId,
+            const HidlCasData& ecm) override;
+
+    virtual Return<Status> processEmm(
+            const HidlCasData& emm) override;
+
+    virtual Return<Status> sendEvent(
+            int32_t event, int32_t arg,
+            const HidlCasData& eventData) override;
+
+    virtual Return<Status> provision(
+            const hidl_string& provisionString) override;
+
+    virtual Return<Status> refreshEntitlements(
+            int32_t refreshType,
+            const HidlCasData& refreshData) override;
+
+    virtual Return<Status> release() override;
+
+private:
+    struct PluginHolder;
+    sp<SharedLibrary> mLibrary;
+    sp<PluginHolder> mPluginHolder;
+    sp<ICasListener> mListener;
+
+    DISALLOW_EVIL_CONSTRUCTORS(CasImpl);
+};
+
+} // namespace implementation
+} // namespace V1_0
+} // namespace cas
+} // namespace hardware
+} // namespace android
+
+#endif // ANDROID_HARDWARE_CAS_V1_0_CAS_IMPL_H_