MediaCas: add MediaCasService

This CL adds API only without implementation.

bug: 22804304
Change-Id: Ibb5a29cc616ec0af81957b2bfe1419c482591753
diff --git a/include/media/CasImpl.h b/include/media/CasImpl.h
new file mode 100644
index 0000000..80c901e
--- /dev/null
+++ b/include/media/CasImpl.h
@@ -0,0 +1,96 @@
+/*
+ * 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 CAS_IMPL_H_
+#define CAS_IMPL_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <android/media/BnCas.h>
+
+namespace android {
+namespace media {
+class ICasListener;
+}
+using namespace media;
+using namespace MediaCas;
+using binder::Status;
+class CasPlugin;
+class SharedLibrary;
+
+class CasImpl : public BnCas {
+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 Status setPrivateData(
+            const CasData& pvtData) override;
+
+    virtual Status openSession(
+            int32_t program_number, CasSessionId* _aidl_return) override;
+
+    virtual Status openSessionForStream(
+            int32_t program_number,
+            int32_t elementary_PID,
+            CasSessionId* _aidl_return) override;
+
+    virtual Status closeSession(const CasSessionId& sessionId) override;
+
+    virtual Status setSessionPrivateData(
+            const CasSessionId& sessionId,
+            const CasData& pvtData) override;
+
+    virtual Status processEcm(
+            const CasSessionId& sessionId, const ParcelableCasData& ecm) override;
+
+    virtual Status processEmm(const ParcelableCasData& emm) override;
+
+    virtual Status sendEvent(
+            int32_t event, int32_t arg, const ::std::unique_ptr<CasData> &eventData) override;
+
+    virtual Status provision(const String16& provisionString) override;
+
+    virtual Status refreshEntitlements(
+            int32_t refreshType, const ::std::unique_ptr<CasData> &refreshData) override;
+
+    virtual Status release() override;
+
+private:
+    sp<SharedLibrary> mLibrary;
+    CasPlugin *mPlugin;
+    sp<ICasListener> mListener;
+
+    DISALLOW_EVIL_CONSTRUCTORS(CasImpl);
+};
+
+} // namespace android
+
+#endif // CAS_IMPL_H_