diff --git a/cas/1.2/default/MediaCasService.cpp b/cas/1.2/default/MediaCasService.cpp
new file mode 100644
index 0000000..4ecd52b
--- /dev/null
+++ b/cas/1.2/default/MediaCasService.cpp
@@ -0,0 +1,153 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "android.hardware.cas@1.1-MediaCasService"
+
+#include <android/hardware/cas/1.1/ICasListener.h>
+#include <android/hardware/cas/1.2/ICasListener.h>
+#include <media/cas/CasAPI.h>
+#include <media/cas/DescramblerAPI.h>
+#include <utils/Log.h>
+
+#include "CasImpl.h"
+#include "DescramblerImpl.h"
+#include "MediaCasService.h"
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+class Wrapper : public V1_1::ICasListener {
+  public:
+    static sp<V1_1::ICasListener> wrap(sp<V1_0::ICasListener> impl) {
+        sp<V1_1::ICasListener> cast = V1_1::ICasListener::castFrom(impl);
+        if (cast == NULL) {
+            cast = new Wrapper(impl);
+        }
+        return cast;
+    }
+
+    virtual Return<void> onEvent(int32_t event, int32_t arg,
+                                 const hidl_vec<uint8_t>& data) override {
+        mImpl->onEvent(event, arg, data);
+        return Void();
+    }
+
+    virtual Return<void> onSessionEvent(const hidl_vec<uint8_t>& /* sessionId */,
+                                        int32_t /* event */, int32_t /* arg */,
+                                        const hidl_vec<uint8_t>& /*data*/) override {
+        ALOGV("Do nothing on Session Event for cas@1.0 client in cas@1.1");
+        return Void();
+    }
+
+  private:
+    Wrapper(sp<V1_0::ICasListener> impl) : mImpl(impl){};
+    sp<V1_0::ICasListener> mImpl;
+};
+
+MediaCasService::MediaCasService()
+    : mCasLoader("createCasFactory"), mDescramblerLoader("createDescramblerFactory") {}
+
+MediaCasService::~MediaCasService() {}
+
+Return<void> MediaCasService::enumeratePlugins(enumeratePlugins_cb _hidl_cb) {
+    ALOGV("%s", __FUNCTION__);
+
+    vector<HidlCasPluginDescriptor> results;
+    mCasLoader.enumeratePlugins(&results);
+
+    _hidl_cb(results);
+    return Void();
+}
+
+Return<bool> MediaCasService::isSystemIdSupported(int32_t CA_system_id) {
+    ALOGV("isSystemIdSupported: CA_system_id=%d", CA_system_id);
+
+    return mCasLoader.findFactoryForScheme(CA_system_id);
+}
+
+Return<sp<V1_0::ICas>> MediaCasService::createPlugin(int32_t CA_system_id,
+                                                     const sp<V1_0::ICasListener>& listener) {
+    ALOGV("%s:Use createPluginExt to create plugin in cas@1.1", __FUNCTION__);
+
+    sp<ICas> result;
+
+    sp<V1_1::ICasListener> listenerV1_1 = Wrapper::wrap(listener);
+
+    result = createPluginExt(CA_system_id, listenerV1_1);
+
+    return result;
+}
+
+Return<sp<ICas>> MediaCasService::createPluginExt(int32_t CA_system_id,
+                                                  const sp<ICasListener>& listener) {
+    ALOGV("%s: CA_system_id=%d", __FUNCTION__, CA_system_id);
+    if (listener == NULL) ALOGV("%s: Listener is NULL", __FUNCTION__);
+
+    sp<V1_2::ICas> result;
+
+    CasFactory* factory;
+    sp<SharedLibrary> library;
+    if (mCasLoader.findFactoryForScheme(CA_system_id, &library, &factory)) {
+        CasPlugin* plugin = NULL;
+        sp<CasImpl> casImpl = new CasImpl(listener);
+        if (factory->createPlugin(CA_system_id, casImpl.get(), &CasImpl::CallBackExt, &plugin) ==
+                    OK &&
+            plugin != NULL) {
+            casImpl->init(library, plugin);
+            result = casImpl;
+
+            sp<V1_2::ICasListener> listenerV1_2 = V1_2::ICasListener::castFrom(listener);
+            if (listenerV1_2 != NULL) {
+                casImpl->setPluginStatusUpdateCallback();
+            }
+        }
+    }
+
+    return result;
+}
+
+Return<bool> MediaCasService::isDescramblerSupported(int32_t CA_system_id) {
+    ALOGV("%s: CA_system_id=%d", __FUNCTION__, CA_system_id);
+
+    return mDescramblerLoader.findFactoryForScheme(CA_system_id);
+}
+
+Return<sp<IDescramblerBase>> MediaCasService::createDescrambler(int32_t CA_system_id) {
+    ALOGV("%s: CA_system_id=%d", __FUNCTION__, CA_system_id);
+
+    sp<IDescrambler> result;
+
+    DescramblerFactory* factory;
+    sp<SharedLibrary> library;
+    if (mDescramblerLoader.findFactoryForScheme(CA_system_id, &library, &factory)) {
+        DescramblerPlugin* plugin = NULL;
+        if (factory->createPlugin(CA_system_id, &plugin) == OK && plugin != NULL) {
+            result = new DescramblerImpl(library, plugin);
+        }
+    }
+
+    return result;
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android