diff --git a/CleanSpec.mk b/CleanSpec.mk
index da2635e..76594fb 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -81,3 +81,6 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/vndk-Q/android.hardware.configstore@1.2.so)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/android.hardware.configstore@1.2.so)
 $(call add-clean-step, rm -f $(PRODUCT_OUT)/etc/init/android.hardware.audio@2.0-service.rc $(PRODUCT_OUT)/vendor/bin/hw/android.hardware.audio@2.0-service)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/bin/hw/android.hardware.cas@1.1*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/etc/init/android.hardware.cas@1.1*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/etc/vintf/manifest/android.hardware.cas@1.1*)
diff --git a/cas/1.2/Android.bp b/cas/1.2/Android.bp
new file mode 100644
index 0000000..af98b2e
--- /dev/null
+++ b/cas/1.2/Android.bp
@@ -0,0 +1,21 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.cas@1.2",
+    root: "android.hardware",
+    vndk: {
+        enabled: true,
+    },
+    srcs: [
+        "ICas.hal",
+        "ICasListener.hal",
+        "IMediaCasService.hal",
+        "types.hal",
+    ],
+    interfaces: [
+        "android.hardware.cas@1.0",
+        "android.hardware.cas@1.1",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+}
diff --git a/cas/1.2/ICas.hal b/cas/1.2/ICas.hal
new file mode 100644
index 0000000..23edc50
--- /dev/null
+++ b/cas/1.2/ICas.hal
@@ -0,0 +1,43 @@
+/*
+ * 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.
+ */
+
+package android.hardware.cas@1.2;
+
+import @1.0::HidlCasSessionId;
+import @1.1::ICas;
+import ScramblingMode;
+import SessionIntent;
+import Status;
+
+/**
+ * ICas is the API to control the cas system and is accessible from both
+ * Java and native level. It is used to manage sessions, provision/refresh
+ * the cas system, and process the EMM/ECM messages. It also allows bi-directional,
+ * scheme-specific communications between the client and the cas system.
+ */
+interface ICas extends @1.1::ICas {
+    /**
+     * Open a session to descramble one or more streams by specifying intention
+     * and scrambling mode.
+     *
+     * @param intent the intention of the session to be opened.
+     * @param mode the scrambling mode the session will use.
+     * @return status the status of the call.
+     * @return sessionId the id of the newly opened session.
+     */
+    openSession_1_2(SessionIntent intent, ScramblingMode mode)
+        generates (Status status, HidlCasSessionId sessionId);
+};
diff --git a/cas/1.2/ICasListener.hal b/cas/1.2/ICasListener.hal
new file mode 100644
index 0000000..9a8be20
--- /dev/null
+++ b/cas/1.2/ICasListener.hal
@@ -0,0 +1,37 @@
+/*
+ * 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.
+ */
+
+package android.hardware.cas@1.2;
+
+import @1.1::ICasListener;
+import StatusEvent;
+
+interface ICasListener extends @1.1::ICasListener {
+    /**
+     * Notify the listener that the status of CAS system has changed.
+     *
+     * @param event the event type of status change.
+     * @param number value for status event.
+     *               For PLUGIN_PHYSICAL_MODULE_CHANGED event:
+     *               the positive number presents how many plugins are inserted;
+     *               the negative number presents how many plugins are removed.
+     *               Client must enumerate plugins after receive the event.
+     *               For PLUGIN_SESSION_NUMBER_CHANGED event:
+     *               the number presents how many sessions are supported
+     *               in the plugin.
+     */
+    onStatusUpdate(StatusEvent event, int32_t number);
+};
diff --git a/cas/1.2/IMediaCasService.hal b/cas/1.2/IMediaCasService.hal
new file mode 100644
index 0000000..a0bec7e
--- /dev/null
+++ b/cas/1.2/IMediaCasService.hal
@@ -0,0 +1,35 @@
+/*
+ * 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.
+ */
+
+package android.hardware.cas@1.2;
+
+import ICas;
+import ICasListener;
+import @1.1::IMediaCasService;
+
+/**
+ * IMediaCasService is the main entry point for interacting with a vendor's
+ * cas HAL to create cas and descrambler plugin instances. A cas plugin instance
+ * opens cas sessions which are used to obtain keys for a descrambler session,
+ * which can in turn be used to descramble protected video content.
+ *
+ * The 1.2 must always create 1.2 ICas interfaces, which are
+ * returned via the 1.1 createPluginExt method.
+ *
+ * To use 1.2 features the caller must cast the returned interface to a
+ * 1.2 HAL, using V1_2::ICas::castFrom().
+ */
+interface IMediaCasService extends @1.1::IMediaCasService {};
diff --git a/cas/1.2/default/Android.bp b/cas/1.2/default/Android.bp
new file mode 100644
index 0000000..9e53148
--- /dev/null
+++ b/cas/1.2/default/Android.bp
@@ -0,0 +1,49 @@
+cc_defaults {
+    name: "cas_service_defaults@1.2",
+    defaults: ["hidl_defaults"],
+    vendor: true,
+    relative_install_path: "hw",
+    srcs: [
+      "CasImpl.cpp",
+      "DescramblerImpl.cpp",
+      "MediaCasService.cpp",
+      "service.cpp",
+      "SharedLibrary.cpp",
+      "TypeConvert.cpp",
+    ],
+
+    compile_multilib: "32",
+
+    shared_libs: [
+      "android.hardware.cas@1.0",
+      "android.hardware.cas@1.1",
+      "android.hardware.cas@1.2",
+      "android.hardware.cas.native@1.0",
+      "android.hidl.memory@1.0",
+      "libbinder",
+      "libhidlbase",
+      "libhidlmemory",
+      "liblog",
+      "libutils",
+    ],
+    header_libs: [
+      "libstagefright_foundation_headers",
+      "media_plugin_headers",
+    ],
+}
+
+cc_binary {
+    name: "android.hardware.cas@1.2-service",
+    vintf_fragments: ["android.hardware.cas@1.2-service.xml"],
+    defaults: ["cas_service_defaults@1.2"],
+    init_rc: ["android.hardware.cas@1.2-service.rc"],
+}
+
+cc_binary {
+    name: "android.hardware.cas@1.2-service-lazy",
+    vintf_fragments: ["android.hardware.cas@1.2-service-lazy.xml"],
+    overrides: ["android.hardware.cas@1.2-service"],
+    defaults: ["cas_service_defaults@1.2"],
+    init_rc: ["android.hardware.cas@1.2-service-lazy.rc"],
+    cflags: ["-DLAZY_SERVICE"],
+}
diff --git a/cas/1.2/default/CasImpl.cpp b/cas/1.2/default/CasImpl.cpp
new file mode 100644
index 0000000..46dd251
--- /dev/null
+++ b/cas/1.2/default/CasImpl.cpp
@@ -0,0 +1,271 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ icensed 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-CasImpl"
+
+#include <android/hardware/cas/1.1/ICasListener.h>
+#include <android/hardware/cas/1.2/ICasListener.h>
+#include <media/cas/CasAPI.h>
+#include <utils/Log.h>
+
+#include "CasImpl.h"
+#include "SharedLibrary.h"
+#include "TypeConvert.h"
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+CasImpl::CasImpl(const sp<ICasListener>& listener) : mListener(listener) {
+    ALOGV("CTOR");
+}
+
+CasImpl::~CasImpl() {
+    ALOGV("DTOR");
+    release();
+}
+
+// static
+void CasImpl::OnEvent(void* appData, int32_t event, int32_t arg, uint8_t* data, size_t size) {
+    if (appData == NULL) {
+        ALOGE("Invalid appData!");
+        return;
+    }
+    CasImpl* casImpl = static_cast<CasImpl*>(appData);
+    casImpl->onEvent(event, arg, data, size);
+}
+
+// static
+void CasImpl::CallBackExt(void* appData, int32_t event, int32_t arg, uint8_t* data, size_t size,
+                          const CasSessionId* sessionId) {
+    if (appData == NULL) {
+        ALOGE("Invalid appData!");
+        return;
+    }
+    CasImpl* casImpl = static_cast<CasImpl*>(appData);
+    casImpl->onEvent(sessionId, event, arg, data, size);
+}
+
+// static
+void CasImpl::StatusUpdate(void* appData, int32_t event, int32_t arg) {
+    if (appData == NULL) {
+        ALOGE("Invalid appData!");
+        return;
+    }
+    CasImpl* casImpl = static_cast<CasImpl*>(appData);
+    casImpl->onStatusUpdate(event, arg);
+}
+
+void CasImpl::init(const sp<SharedLibrary>& library, CasPlugin* plugin) {
+    mLibrary = library;
+    std::shared_ptr<CasPlugin> holder(plugin);
+    std::atomic_store(&mPluginHolder, holder);
+}
+
+void CasImpl::onEvent(int32_t event, int32_t arg, uint8_t* data, size_t size) {
+    if (mListener == NULL) {
+        return;
+    }
+
+    HidlCasData eventData;
+    if (data != NULL) {
+        eventData.setToExternal(data, size);
+    }
+
+    mListener->onEvent(event, arg, eventData);
+}
+
+void CasImpl::onEvent(const CasSessionId* sessionId, int32_t event, int32_t arg, uint8_t* data,
+                      size_t size) {
+    if (mListener == NULL) {
+        return;
+    }
+
+    HidlCasData eventData;
+    if (data != NULL) {
+        eventData.setToExternal(data, size);
+    }
+
+    if (sessionId != NULL) {
+        mListener->onSessionEvent(*sessionId, event, arg, eventData);
+    } else {
+        mListener->onEvent(event, arg, eventData);
+    }
+}
+
+void CasImpl::onStatusUpdate(int32_t event, int32_t arg) {
+    if (mListener == NULL) {
+        return;
+    }
+    sp<V1_2::ICasListener> listenerV1_2 = V1_2::ICasListener::castFrom(mListener);
+
+    if (listenerV1_2 != NULL) {
+        listenerV1_2->onStatusUpdate(static_cast<StatusEvent>(event), arg);
+    }
+}
+
+Return<Status> CasImpl::setPluginStatusUpdateCallback() {
+    ALOGV("%s", __FUNCTION__);
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+    return toStatus(holder->setStatusCallback(&CasImpl::StatusUpdate));
+}
+
+Return<Status> CasImpl::setPrivateData(const HidlCasData& pvtData) {
+    ALOGV("%s", __FUNCTION__);
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+    return toStatus(holder->setPrivateData(pvtData));
+}
+
+Return<void> CasImpl::openSession(openSession_cb _hidl_cb) {
+    ALOGV("%s", __FUNCTION__);
+    CasSessionId sessionId;
+
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    status_t err = INVALID_OPERATION;
+    if (holder.get() != nullptr) {
+        err = holder->openSession(&sessionId);
+        holder.reset();
+    }
+
+    _hidl_cb(toStatus(err), sessionId);
+
+    return Void();
+}
+
+Return<void> CasImpl::openSession_1_2(const SessionIntent intent, const ScramblingMode mode,
+                                      openSession_1_2_cb _hidl_cb) {
+    ALOGV("%s", __FUNCTION__);
+    CasSessionId sessionId;
+
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    status_t err = INVALID_OPERATION;
+    if (holder.get() != nullptr) {
+        err = holder->openSession(static_cast<uint32_t>(intent), static_cast<uint32_t>(mode),
+                                  &sessionId);
+        holder.reset();
+    }
+
+    _hidl_cb(toStatus_1_2(err), sessionId);
+
+    return Void();
+}
+
+Return<Status> CasImpl::setSessionPrivateData(const HidlCasSessionId& sessionId,
+                                              const HidlCasData& pvtData) {
+    ALOGV("%s: sessionId=%s", __FUNCTION__, sessionIdToString(sessionId).string());
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+    return toStatus(holder->setSessionPrivateData(sessionId, pvtData));
+}
+
+Return<Status> CasImpl::closeSession(const HidlCasSessionId& sessionId) {
+    ALOGV("%s: sessionId=%s", __FUNCTION__, sessionIdToString(sessionId).string());
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+    return toStatus(holder->closeSession(sessionId));
+}
+
+Return<Status> CasImpl::processEcm(const HidlCasSessionId& sessionId, const HidlCasData& ecm) {
+    ALOGV("%s: sessionId=%s", __FUNCTION__, sessionIdToString(sessionId).string());
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    return toStatus(holder->processEcm(sessionId, ecm));
+}
+
+Return<Status> CasImpl::processEmm(const HidlCasData& emm) {
+    ALOGV("%s", __FUNCTION__);
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    return toStatus(holder->processEmm(emm));
+}
+
+Return<Status> CasImpl::sendEvent(int32_t event, int32_t arg, const HidlCasData& eventData) {
+    ALOGV("%s", __FUNCTION__);
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    status_t err = holder->sendEvent(event, arg, eventData);
+    return toStatus(err);
+}
+
+Return<Status> CasImpl::sendSessionEvent(const HidlCasSessionId& sessionId, int32_t event,
+                                         int32_t arg, const HidlCasData& eventData) {
+    ALOGV("%s", __FUNCTION__);
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    status_t err = holder->sendSessionEvent(sessionId, event, arg, eventData);
+    return toStatus(err);
+}
+
+Return<Status> CasImpl::provision(const hidl_string& provisionString) {
+    ALOGV("%s: provisionString=%s", __FUNCTION__, provisionString.c_str());
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    return toStatus(holder->provision(String8(provisionString.c_str())));
+}
+
+Return<Status> CasImpl::refreshEntitlements(int32_t refreshType, const HidlCasData& refreshData) {
+    ALOGV("%s", __FUNCTION__);
+    std::shared_ptr<CasPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    status_t err = holder->refreshEntitlements(refreshType, refreshData);
+    return toStatus(err);
+}
+
+Return<Status> CasImpl::release() {
+    ALOGV("%s: plugin=%p", __FUNCTION__, mPluginHolder.get());
+
+    std::shared_ptr<CasPlugin> holder(nullptr);
+    std::atomic_store(&mPluginHolder, holder);
+
+    return Status::OK;
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
diff --git a/cas/1.2/default/CasImpl.h b/cas/1.2/default/CasImpl.h
new file mode 100644
index 0000000..4325c20
--- /dev/null
+++ b/cas/1.2/default/CasImpl.h
@@ -0,0 +1,111 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_HARDWARE_CAS_V1_1_CAS_IMPL_H_
+#define ANDROID_HARDWARE_CAS_V1_1_CAS_IMPL_H_
+
+#include <android/hardware/cas/1.1/ICas.h>
+#include <android/hardware/cas/1.2/ICas.h>
+#include <media/stagefright/foundation/ABase.h>
+
+namespace android {
+struct CasPlugin;
+
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+struct ICasListener;
+namespace implementation {
+
+using ::android::hardware::cas::V1_0::HidlCasData;
+using ::android::hardware::cas::V1_0::HidlCasSessionId;
+using ::android::hardware::cas::V1_0::Status;
+using ::android::hardware::cas::V1_2::ScramblingMode;
+using ::android::hardware::cas::V1_2::SessionIntent;
+using ::android::hardware::cas::V1_2::StatusEvent;
+
+class SharedLibrary;
+
+class CasImpl : public V1_2::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);
+
+    static void CallBackExt(void* appData, int32_t event, int32_t arg, uint8_t* data, size_t size,
+                            const CasSessionId* sessionId);
+
+    static void StatusUpdate(void* appData, int32_t event, int32_t arg);
+
+    void init(const sp<SharedLibrary>& library, CasPlugin* plugin);
+    void onEvent(int32_t event, int32_t arg, uint8_t* data, size_t size);
+
+    void onEvent(const CasSessionId* sessionId, int32_t event, int32_t arg, uint8_t* data,
+                 size_t size);
+
+    void onStatusUpdate(int32_t event, int32_t arg);
+
+    // ICas inherits
+
+    Return<Status> setPluginStatusUpdateCallback();
+
+    virtual Return<Status> setPrivateData(const HidlCasData& pvtData) override;
+
+    virtual Return<void> openSession(openSession_cb _hidl_cb) override;
+
+    virtual Return<void> openSession_1_2(const SessionIntent intent, const ScramblingMode mode,
+                                         openSession_1_2_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> sendSessionEvent(const HidlCasSessionId& sessionId, 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;
+    std::shared_ptr<CasPlugin> mPluginHolder;
+    sp<ICasListener> mListener;
+
+    DISALLOW_EVIL_CONSTRUCTORS(CasImpl);
+};
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAS_V1_1_CAS_IMPL_H_
diff --git a/cas/1.2/default/DescramblerImpl.cpp b/cas/1.2/default/DescramblerImpl.cpp
new file mode 100644
index 0000000..36dc1a5
--- /dev/null
+++ b/cas/1.2/default/DescramblerImpl.cpp
@@ -0,0 +1,195 @@
+/*
+ * 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-DescramblerImpl"
+
+#include <hidlmemory/mapping.h>
+#include <media/cas/DescramblerAPI.h>
+#include <media/hardware/CryptoAPI.h>
+#include <media/stagefright/foundation/AUtils.h>
+#include <utils/Log.h>
+
+#include "DescramblerImpl.h"
+#include "SharedLibrary.h"
+#include "TypeConvert.h"
+
+namespace android {
+using hidl::memory::V1_0::IMemory;
+
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+#define CHECK_SUBSAMPLE_DEF(type)                                                                 \
+    static_assert(sizeof(SubSample) == sizeof(type::SubSample), "SubSample: size doesn't match"); \
+    static_assert(offsetof(SubSample, numBytesOfClearData) ==                                     \
+                          offsetof(type::SubSample, mNumBytesOfClearData),                        \
+                  "SubSample: numBytesOfClearData offset doesn't match");                         \
+    static_assert(offsetof(SubSample, numBytesOfEncryptedData) ==                                 \
+                          offsetof(type::SubSample, mNumBytesOfEncryptedData),                    \
+                  "SubSample: numBytesOfEncryptedData offset doesn't match")
+
+CHECK_SUBSAMPLE_DEF(DescramblerPlugin);
+CHECK_SUBSAMPLE_DEF(CryptoPlugin);
+
+DescramblerImpl::DescramblerImpl(const sp<SharedLibrary>& library, DescramblerPlugin* plugin)
+    : mLibrary(library), mPluginHolder(plugin) {
+    ALOGV("CTOR: plugin=%p", mPluginHolder.get());
+}
+
+DescramblerImpl::~DescramblerImpl() {
+    ALOGV("DTOR: plugin=%p", mPluginHolder.get());
+    release();
+}
+
+Return<Status> DescramblerImpl::setMediaCasSession(const HidlCasSessionId& sessionId) {
+    ALOGV("%s: sessionId=%s", __FUNCTION__, sessionIdToString(sessionId).string());
+
+    std::shared_ptr<DescramblerPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return toStatus(INVALID_OPERATION);
+    }
+
+    return toStatus(holder->setMediaCasSession(sessionId));
+}
+
+Return<bool> DescramblerImpl::requiresSecureDecoderComponent(const hidl_string& mime) {
+    std::shared_ptr<DescramblerPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        return false;
+    }
+
+    return holder->requiresSecureDecoderComponent(String8(mime.c_str()));
+}
+
+static inline bool validateRangeForSize(uint64_t offset, uint64_t length, uint64_t size) {
+    return isInRange<uint64_t, uint64_t>(0, size, offset, length);
+}
+
+Return<void> DescramblerImpl::descramble(ScramblingControl scramblingControl,
+                                         const hidl_vec<SubSample>& subSamples,
+                                         const SharedBuffer& srcBuffer, uint64_t srcOffset,
+                                         const DestinationBuffer& dstBuffer, uint64_t dstOffset,
+                                         descramble_cb _hidl_cb) {
+    ALOGV("%s", __FUNCTION__);
+
+    // hidl_memory's size is stored in uint64_t, but mapMemory's mmap will map
+    // size in size_t. If size is over SIZE_MAX, mapMemory mapMemory could succeed
+    // but the mapped memory's actual size will be smaller than the reported size.
+    if (srcBuffer.heapBase.size() > SIZE_MAX) {
+        ALOGE("Invalid hidl_memory size: %llu", srcBuffer.heapBase.size());
+        android_errorWriteLog(0x534e4554, "79376389");
+        _hidl_cb(toStatus(BAD_VALUE), 0, NULL);
+        return Void();
+    }
+
+    sp<IMemory> srcMem = mapMemory(srcBuffer.heapBase);
+
+    // Validate if the offset and size in the SharedBuffer is consistent with the
+    // mapped ashmem, since the offset and size is controlled by client.
+    if (srcMem == NULL) {
+        ALOGE("Failed to map src buffer.");
+        _hidl_cb(toStatus(BAD_VALUE), 0, NULL);
+        return Void();
+    }
+    if (!validateRangeForSize(srcBuffer.offset, srcBuffer.size, (uint64_t)srcMem->getSize())) {
+        ALOGE("Invalid src buffer range: offset %llu, size %llu, srcMem size %llu",
+              srcBuffer.offset, srcBuffer.size, (uint64_t)srcMem->getSize());
+        android_errorWriteLog(0x534e4554, "67962232");
+        _hidl_cb(toStatus(BAD_VALUE), 0, NULL);
+        return Void();
+    }
+
+    // use 64-bit here to catch bad subsample size that might be overflowing.
+    uint64_t totalBytesInSubSamples = 0;
+    for (size_t i = 0; i < subSamples.size(); i++) {
+        totalBytesInSubSamples +=
+                (uint64_t)subSamples[i].numBytesOfClearData + subSamples[i].numBytesOfEncryptedData;
+    }
+    // Further validate if the specified srcOffset and requested total subsample size
+    // is consistent with the source shared buffer size.
+    if (!validateRangeForSize(srcOffset, totalBytesInSubSamples, srcBuffer.size)) {
+        ALOGE("Invalid srcOffset and subsample size: "
+              "srcOffset %llu, totalBytesInSubSamples %llu, srcBuffer size %llu",
+              srcOffset, totalBytesInSubSamples, srcBuffer.size);
+        android_errorWriteLog(0x534e4554, "67962232");
+        _hidl_cb(toStatus(BAD_VALUE), 0, NULL);
+        return Void();
+    }
+
+    void* srcPtr = (uint8_t*)(void*)srcMem->getPointer() + srcBuffer.offset;
+    void* dstPtr = NULL;
+    if (dstBuffer.type == BufferType::SHARED_MEMORY) {
+        // When using shared memory, src buffer is also used as dst,
+        // we don't map it again here.
+        dstPtr = srcPtr;
+
+        // In this case the dst and src would be the same buffer, need to validate
+        // dstOffset against the buffer size too.
+        if (!validateRangeForSize(dstOffset, totalBytesInSubSamples, srcBuffer.size)) {
+            ALOGE("Invalid dstOffset and subsample size: "
+                  "dstOffset %llu, totalBytesInSubSamples %llu, srcBuffer size %llu",
+                  dstOffset, totalBytesInSubSamples, srcBuffer.size);
+            android_errorWriteLog(0x534e4554, "67962232");
+            _hidl_cb(toStatus(BAD_VALUE), 0, NULL);
+            return Void();
+        }
+    } else {
+        native_handle_t* handle =
+                const_cast<native_handle_t*>(dstBuffer.secureMemory.getNativeHandle());
+        dstPtr = static_cast<void*>(handle);
+    }
+
+    // Get a local copy of the shared_ptr for the plugin. Note that before
+    // calling the HIDL callback, this shared_ptr must be manually reset,
+    // since the client side could proceed as soon as the callback is called
+    // without waiting for this method to go out of scope.
+    std::shared_ptr<DescramblerPlugin> holder = std::atomic_load(&mPluginHolder);
+    if (holder.get() == nullptr) {
+        _hidl_cb(toStatus(INVALID_OPERATION), 0, NULL);
+        return Void();
+    }
+
+    // Casting hidl SubSample to DescramblerPlugin::SubSample, but need
+    // to ensure structs are actually idential
+
+    int32_t result =
+            holder->descramble(dstBuffer.type != BufferType::SHARED_MEMORY,
+                               (DescramblerPlugin::ScramblingControl)scramblingControl,
+                               subSamples.size(), (DescramblerPlugin::SubSample*)subSamples.data(),
+                               srcPtr, srcOffset, dstPtr, dstOffset, NULL);
+
+    holder.reset();
+    _hidl_cb(toStatus(result >= 0 ? OK : result), result, NULL);
+    return Void();
+}
+
+Return<Status> DescramblerImpl::release() {
+    ALOGV("%s: plugin=%p", __FUNCTION__, mPluginHolder.get());
+
+    std::shared_ptr<DescramblerPlugin> holder(nullptr);
+    std::atomic_store(&mPluginHolder, holder);
+
+    return Status::OK;
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
diff --git a/cas/1.2/default/DescramblerImpl.h b/cas/1.2/default/DescramblerImpl.h
new file mode 100644
index 0000000..011eace
--- /dev/null
+++ b/cas/1.2/default/DescramblerImpl.h
@@ -0,0 +1,67 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_HARDWARE_CAS_V1_1_DESCRAMBLER_IMPL_H_
+#define ANDROID_HARDWARE_CAS_V1_1_DESCRAMBLER_IMPL_H_
+
+#include <android/hardware/cas/native/1.0/IDescrambler.h>
+#include <media/stagefright/foundation/ABase.h>
+
+namespace android {
+struct DescramblerPlugin;
+using namespace hardware::cas::native::V1_0;
+
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+using ::android::hardware::cas::V1_0::HidlCasSessionId;
+using ::android::hardware::cas::V1_0::Status;
+
+class SharedLibrary;
+
+class DescramblerImpl : public IDescrambler {
+  public:
+    DescramblerImpl(const sp<SharedLibrary>& library, DescramblerPlugin* plugin);
+    virtual ~DescramblerImpl();
+
+    virtual Return<Status> setMediaCasSession(const HidlCasSessionId& sessionId) override;
+
+    virtual Return<bool> requiresSecureDecoderComponent(const hidl_string& mime) override;
+
+    virtual Return<void> descramble(ScramblingControl scramblingControl,
+                                    const hidl_vec<SubSample>& subSamples,
+                                    const SharedBuffer& srcBuffer, uint64_t srcOffset,
+                                    const DestinationBuffer& dstBuffer, uint64_t dstOffset,
+                                    descramble_cb _hidl_cb) override;
+
+    virtual Return<Status> release() override;
+
+  private:
+    sp<SharedLibrary> mLibrary;
+    std::shared_ptr<DescramblerPlugin> mPluginHolder;
+
+    DISALLOW_EVIL_CONSTRUCTORS(DescramblerImpl);
+};
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAS_V1_1_DESCRAMBLER_IMPL_H_
diff --git a/cas/1.2/default/FactoryLoader.h b/cas/1.2/default/FactoryLoader.h
new file mode 100644
index 0000000..7403f86
--- /dev/null
+++ b/cas/1.2/default/FactoryLoader.h
@@ -0,0 +1,217 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_HARDWARE_CAS_V1_1_FACTORY_LOADER_H_
+#define ANDROID_HARDWARE_CAS_V1_1_FACTORY_LOADER_H_
+
+#include <dirent.h>
+#include <dlfcn.h>
+#include <media/cas/CasAPI.h>
+#include <utils/KeyedVector.h>
+#include <utils/Mutex.h>
+#include "SharedLibrary.h"
+
+using namespace std;
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+using ::android::hardware::cas::V1_0::HidlCasPluginDescriptor;
+
+template <class T>
+class FactoryLoader {
+  public:
+    FactoryLoader(const char* name) : mFactory(NULL), mCreateFactoryFuncName(name) {}
+
+    virtual ~FactoryLoader() { closeFactory(); }
+
+    bool findFactoryForScheme(int32_t CA_system_id, sp<SharedLibrary>* library = NULL,
+                              T** factory = NULL);
+
+    bool enumeratePlugins(vector<HidlCasPluginDescriptor>* results);
+
+  private:
+    typedef T* (*CreateFactoryFunc)();
+
+    Mutex mMapLock;
+    T* mFactory;
+    const char* mCreateFactoryFuncName;
+    sp<SharedLibrary> mLibrary;
+    KeyedVector<int32_t, String8> mCASystemIdToLibraryPathMap;
+    KeyedVector<String8, wp<SharedLibrary>> mLibraryPathToOpenLibraryMap;
+
+    bool loadFactoryForSchemeFromPath(const String8& path, int32_t CA_system_id,
+                                      sp<SharedLibrary>* library, T** factory);
+
+    bool queryPluginsFromPath(const String8& path, vector<HidlCasPluginDescriptor>* results);
+
+    bool openFactory(const String8& path);
+    void closeFactory();
+};
+
+template <class T>
+bool FactoryLoader<T>::findFactoryForScheme(int32_t CA_system_id, sp<SharedLibrary>* library,
+                                            T** factory) {
+    if (library != NULL) {
+        library->clear();
+    }
+    if (factory != NULL) {
+        *factory = NULL;
+    }
+
+    Mutex::Autolock autoLock(mMapLock);
+
+    // first check cache
+    ssize_t index = mCASystemIdToLibraryPathMap.indexOfKey(CA_system_id);
+    if (index >= 0) {
+        return loadFactoryForSchemeFromPath(mCASystemIdToLibraryPathMap[index], CA_system_id,
+                                            library, factory);
+    }
+
+    // no luck, have to search
+    String8 dirPath("/vendor/lib/mediacas");
+    DIR* pDir = opendir(dirPath.string());
+
+    if (pDir == NULL) {
+        ALOGE("Failed to open plugin directory %s", dirPath.string());
+        return false;
+    }
+
+    struct dirent* pEntry;
+    while ((pEntry = readdir(pDir))) {
+        String8 pluginPath = dirPath + "/" + pEntry->d_name;
+        if (pluginPath.getPathExtension() == ".so") {
+            if (loadFactoryForSchemeFromPath(pluginPath, CA_system_id, library, factory)) {
+                mCASystemIdToLibraryPathMap.add(CA_system_id, pluginPath);
+                closedir(pDir);
+
+                return true;
+            }
+        }
+    }
+
+    closedir(pDir);
+
+    ALOGE("Failed to find plugin");
+    return false;
+}
+
+template <class T>
+bool FactoryLoader<T>::enumeratePlugins(vector<HidlCasPluginDescriptor>* results) {
+    ALOGI("enumeratePlugins");
+
+    results->clear();
+
+    String8 dirPath("/vendor/lib/mediacas");
+    DIR* pDir = opendir(dirPath.string());
+
+    if (pDir == NULL) {
+        ALOGE("Failed to open plugin directory %s", dirPath.string());
+        return false;
+    }
+
+    Mutex::Autolock autoLock(mMapLock);
+
+    struct dirent* pEntry;
+    while ((pEntry = readdir(pDir))) {
+        String8 pluginPath = dirPath + "/" + pEntry->d_name;
+        if (pluginPath.getPathExtension() == ".so") {
+            queryPluginsFromPath(pluginPath, results);
+        }
+    }
+    return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::loadFactoryForSchemeFromPath(const String8& path, int32_t CA_system_id,
+                                                    sp<SharedLibrary>* library, T** factory) {
+    closeFactory();
+
+    if (!openFactory(path) || !mFactory->isSystemIdSupported(CA_system_id)) {
+        closeFactory();
+        return false;
+    }
+
+    if (library != NULL) {
+        *library = mLibrary;
+    }
+    if (factory != NULL) {
+        *factory = mFactory;
+    }
+    return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::queryPluginsFromPath(const String8& path,
+                                            vector<HidlCasPluginDescriptor>* results) {
+    closeFactory();
+
+    vector<CasPluginDescriptor> descriptors;
+    if (!openFactory(path) || mFactory->queryPlugins(&descriptors) != OK) {
+        closeFactory();
+        return false;
+    }
+
+    for (auto it = descriptors.begin(); it != descriptors.end(); it++) {
+        results->push_back(
+                HidlCasPluginDescriptor{.caSystemId = it->CA_system_id, .name = it->name.c_str()});
+    }
+    return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::openFactory(const String8& path) {
+    // get strong pointer to open shared library
+    ssize_t index = mLibraryPathToOpenLibraryMap.indexOfKey(path);
+    if (index >= 0) {
+        mLibrary = mLibraryPathToOpenLibraryMap[index].promote();
+    } else {
+        index = mLibraryPathToOpenLibraryMap.add(path, NULL);
+    }
+
+    if (!mLibrary.get()) {
+        mLibrary = new SharedLibrary(path);
+        if (!*mLibrary) {
+            return false;
+        }
+
+        mLibraryPathToOpenLibraryMap.replaceValueAt(index, mLibrary);
+    }
+
+    CreateFactoryFunc createFactory = (CreateFactoryFunc)mLibrary->lookup(mCreateFactoryFuncName);
+    if (createFactory == NULL || (mFactory = createFactory()) == NULL) {
+        return false;
+    }
+    return true;
+}
+
+template <class T>
+void FactoryLoader<T>::closeFactory() {
+    delete mFactory;
+    mFactory = NULL;
+    mLibrary.clear();
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAS_V1_1_FACTORY_LOADER_H_
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
diff --git a/cas/1.2/default/MediaCasService.h b/cas/1.2/default/MediaCasService.h
new file mode 100644
index 0000000..01e11db
--- /dev/null
+++ b/cas/1.2/default/MediaCasService.h
@@ -0,0 +1,67 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_HARDWARE_CAS_V1_1_MEDIA_CAS_SERVICE_H_
+#define ANDROID_HARDWARE_CAS_V1_1_MEDIA_CAS_SERVICE_H_
+
+#include <android/hardware/cas/1.1/IMediaCasService.h>
+#include <android/hardware/cas/1.2/IMediaCasService.h>
+
+#include "FactoryLoader.h"
+
+namespace android {
+struct CasFactory;
+struct DescramblerFactory;
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+using ::android::hardware::cas::V1_0::HidlCasPluginDescriptor;
+using ::android::hardware::cas::V1_0::IDescramblerBase;
+
+class MediaCasService : public V1_2::IMediaCasService {
+  public:
+    MediaCasService();
+
+    virtual Return<void> enumeratePlugins(enumeratePlugins_cb _hidl_cb) override;
+
+    virtual Return<bool> isSystemIdSupported(int32_t CA_system_id) override;
+
+    virtual Return<sp<V1_0::ICas>> createPlugin(int32_t CA_system_id,
+                                                const sp<V1_0::ICasListener>& listener) override;
+
+    virtual Return<sp<ICas>> createPluginExt(int32_t CA_system_id,
+                                             const sp<ICasListener>& listener) override;
+
+    virtual Return<bool> isDescramblerSupported(int32_t CA_system_id) override;
+
+    virtual Return<sp<IDescramblerBase>> createDescrambler(int32_t CA_system_id) override;
+
+  private:
+    FactoryLoader<CasFactory> mCasLoader;
+    FactoryLoader<DescramblerFactory> mDescramblerLoader;
+
+    virtual ~MediaCasService();
+};
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAS_V1_1_MEDIA_CAS_SERVICE_H_
diff --git a/cas/1.2/default/SharedLibrary.cpp b/cas/1.2/default/SharedLibrary.cpp
new file mode 100644
index 0000000..ffe4bb9
--- /dev/null
+++ b/cas/1.2/default/SharedLibrary.cpp
@@ -0,0 +1,65 @@
+/*
+ * 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-SharedLibrary"
+
+#include "SharedLibrary.h"
+#include <dlfcn.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <utils/Log.h>
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+SharedLibrary::SharedLibrary(const String8& path) {
+    mLibHandle = dlopen(path.string(), RTLD_NOW);
+}
+
+SharedLibrary::~SharedLibrary() {
+    if (mLibHandle != NULL) {
+        dlclose(mLibHandle);
+        mLibHandle = NULL;
+    }
+}
+
+bool SharedLibrary::operator!() const {
+    return mLibHandle == NULL;
+}
+
+void* SharedLibrary::lookup(const char* symbol) const {
+    if (!mLibHandle) {
+        return NULL;
+    }
+    // Clear last error before we load the symbol again,
+    // in case the caller didn't retrieve it.
+    (void)dlerror();
+    return dlsym(mLibHandle, symbol);
+}
+
+const char* SharedLibrary::lastError() const {
+    const char* error = dlerror();
+    return error ? error : "No errors or unknown error";
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
diff --git a/cas/1.2/default/SharedLibrary.h b/cas/1.2/default/SharedLibrary.h
new file mode 100644
index 0000000..b85f557
--- /dev/null
+++ b/cas/1.2/default/SharedLibrary.h
@@ -0,0 +1,50 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_HARDWARE_CAS_V1_1_SHARED_LIBRARY_H_
+#define ANDROID_HARDWARE_CAS_V1_1_SHARED_LIBRARY_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+class SharedLibrary : public RefBase {
+  public:
+    explicit SharedLibrary(const String8& path);
+    ~SharedLibrary();
+
+    bool operator!() const;
+    void* lookup(const char* symbol) const;
+    const char* lastError() const;
+
+  private:
+    void* mLibHandle;
+    DISALLOW_EVIL_CONSTRUCTORS(SharedLibrary);
+};
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAS_V1_1_SHARED_LIBRARY_H_
diff --git a/cas/1.2/default/TypeConvert.cpp b/cas/1.2/default/TypeConvert.cpp
new file mode 100644
index 0000000..c4bd0dd
--- /dev/null
+++ b/cas/1.2/default/TypeConvert.cpp
@@ -0,0 +1,121 @@
+/*
+ * 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-TypeConvert"
+
+#include "TypeConvert.h"
+#include <utils/Log.h>
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+Status toStatus(status_t legacyStatus) {
+    Status status;
+    switch (legacyStatus) {
+        case android::OK:
+            status = Status::OK;
+            break;
+        case android::ERROR_CAS_NO_LICENSE:
+            status = Status::ERROR_CAS_NO_LICENSE;
+            break;
+        case android::ERROR_CAS_LICENSE_EXPIRED:
+            status = Status::ERROR_CAS_LICENSE_EXPIRED;
+            break;
+        case android::ERROR_CAS_SESSION_NOT_OPENED:
+            status = Status::ERROR_CAS_SESSION_NOT_OPENED;
+            break;
+        case android::ERROR_CAS_CANNOT_HANDLE:
+            status = Status::ERROR_CAS_CANNOT_HANDLE;
+            break;
+        case android::ERROR_CAS_TAMPER_DETECTED:
+            status = Status::ERROR_CAS_INVALID_STATE;
+            break;
+        case android::BAD_VALUE:
+            status = Status::BAD_VALUE;
+            break;
+        case android::ERROR_CAS_NOT_PROVISIONED:
+            status = Status::ERROR_CAS_NOT_PROVISIONED;
+            break;
+        case android::ERROR_CAS_RESOURCE_BUSY:
+            status = Status::ERROR_CAS_RESOURCE_BUSY;
+            break;
+        case android::ERROR_CAS_INSUFFICIENT_OUTPUT_PROTECTION:
+            status = Status::ERROR_CAS_INSUFFICIENT_OUTPUT_PROTECTION;
+            break;
+        case android::ERROR_CAS_DEVICE_REVOKED:
+            status = Status::ERROR_CAS_DEVICE_REVOKED;
+            break;
+        case android::ERROR_CAS_DECRYPT_UNIT_NOT_INITIALIZED:
+            status = Status::ERROR_CAS_DECRYPT_UNIT_NOT_INITIALIZED;
+            break;
+        case android::ERROR_CAS_DECRYPT:
+            status = Status::ERROR_CAS_DECRYPT;
+            break;
+        default:
+            ALOGW("Unable to convert legacy status: %d, defaulting to UNKNOWN", legacyStatus);
+            status = Status::ERROR_CAS_UNKNOWN;
+            break;
+    }
+    return status;
+}
+
+V1_2::Status toStatus_1_2(status_t legacyStatus) {
+    V1_2::Status status = static_cast<V1_2::Status>(toStatus(legacyStatus));
+    if (status == V1_2::Status::ERROR_CAS_UNKNOWN) {
+        switch (legacyStatus) {
+            case android::ERROR_CAS_NEED_ACTIVATION:
+                status = V1_2::Status::ERROR_CAS_NEED_ACTIVATION;
+                break;
+            case android::ERROR_CAS_NEED_PAIRING:
+                status = V1_2::Status::ERROR_CAS_NEED_PAIRING;
+                break;
+            case android::ERROR_CAS_NO_CARD:
+                status = V1_2::Status::ERROR_CAS_NO_CARD;
+                break;
+            case android::ERROR_CAS_CARD_MUTE:
+                status = V1_2::Status::ERROR_CAS_CARD_MUTE;
+                break;
+            case android::ERROR_CAS_CARD_INVALID:
+                status = V1_2::Status::ERROR_CAS_CARD_INVALID;
+                break;
+            case android::ERROR_CAS_BLACKOUT:
+                status = V1_2::Status::ERROR_CAS_BLACKOUT;
+                break;
+        }
+    }
+    return status;
+}
+
+String8 sessionIdToString(const CasSessionId& sessionId) {
+    String8 result;
+    for (size_t i = 0; i < sessionId.size(); i++) {
+        result.appendFormat("%02x ", sessionId[i]);
+    }
+    if (result.isEmpty()) {
+        result.append("(null)");
+    }
+    return result;
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
diff --git a/cas/1.2/default/TypeConvert.h b/cas/1.2/default/TypeConvert.h
new file mode 100644
index 0000000..018f310
--- /dev/null
+++ b/cas/1.2/default/TypeConvert.h
@@ -0,0 +1,46 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_HARDWARE_CAS_V1_1_TYPE_CONVERT_H
+#define ANDROID_HARDWARE_CAS_V1_1_TYPE_CONVERT_H
+
+#include <android/hardware/cas/1.0/types.h>
+#include <android/hardware/cas/1.2/types.h>
+#include <media/cas/CasAPI.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/String8.h>
+
+namespace android {
+namespace hardware {
+namespace cas {
+namespace V1_1 {
+namespace implementation {
+
+using ::android::hardware::cas::V1_0::Status;
+
+Status toStatus(status_t legacyStatus);
+
+V1_2::Status toStatus_1_2(status_t legacyStatus);
+
+String8 sessionIdToString(const CasSessionId& sessionId);
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace cas
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_CAS_V1_1_TYPE_CONVERT_H
diff --git a/cas/1.2/default/android.hardware.cas@1.2-service-lazy.rc b/cas/1.2/default/android.hardware.cas@1.2-service-lazy.rc
new file mode 100644
index 0000000..1c75100
--- /dev/null
+++ b/cas/1.2/default/android.hardware.cas@1.2-service-lazy.rc
@@ -0,0 +1,11 @@
+service vendor.cas-hal-1-2 /vendor/bin/hw/android.hardware.cas@1.2-service-lazy
+    interface android.hardware.cas@1.0::IMediaCasService default
+    interface android.hardware.cas@1.1::IMediaCasService default
+    interface android.hardware.cas@1.2::IMediaCasService default
+    oneshot
+    disabled
+    class hal
+    user media
+    group mediadrm drmrpc
+    ioprio rt 4
+    writepid /dev/cpuset/foreground/tasks
diff --git a/cas/1.2/default/android.hardware.cas@1.2-service-lazy.xml b/cas/1.2/default/android.hardware.cas@1.2-service-lazy.xml
new file mode 100644
index 0000000..9b36406
--- /dev/null
+++ b/cas/1.2/default/android.hardware.cas@1.2-service-lazy.xml
@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.cas</name>
+        <transport>hwbinder</transport>
+        <version>1.2</version>
+        <interface>
+            <name>IMediaCasService</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
diff --git a/cas/1.2/default/android.hardware.cas@1.2-service.rc b/cas/1.2/default/android.hardware.cas@1.2-service.rc
new file mode 100644
index 0000000..d1c853e
--- /dev/null
+++ b/cas/1.2/default/android.hardware.cas@1.2-service.rc
@@ -0,0 +1,6 @@
+service vendor.cas-hal-1-2 /vendor/bin/hw/android.hardware.cas@1.2-service
+    class hal
+    user media
+    group mediadrm drmrpc
+    ioprio rt 4
+    writepid /dev/cpuset/foreground/tasks
diff --git a/cas/1.2/default/android.hardware.cas@1.2-service.xml b/cas/1.2/default/android.hardware.cas@1.2-service.xml
new file mode 100644
index 0000000..9b36406
--- /dev/null
+++ b/cas/1.2/default/android.hardware.cas@1.2-service.xml
@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.cas</name>
+        <transport>hwbinder</transport>
+        <version>1.2</version>
+        <interface>
+            <name>IMediaCasService</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>
diff --git a/cas/1.2/default/service.cpp b/cas/1.2/default/service.cpp
new file mode 100644
index 0000000..a623447
--- /dev/null
+++ b/cas/1.2/default/service.cpp
@@ -0,0 +1,58 @@
+/*
+ * Copyright 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.
+ */
+
+//#define LOG_NDEBUG 0
+#ifdef LAZY_SERVICE
+#define LOG_TAG "android.hardware.cas@1.1-service-lazy"
+#else
+#define LOG_TAG "android.hardware.cas@1.1-service"
+#endif
+
+#include <binder/ProcessState.h>
+#include <hidl/HidlTransportSupport.h>
+#include <hidl/LegacySupport.h>
+
+#include "MediaCasService.h"
+
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::hardware::LazyServiceRegistrar;
+using android::hardware::cas::V1_1::implementation::MediaCasService;
+using android::hardware::cas::V1_2::IMediaCasService;
+
+#ifdef LAZY_SERVICE
+const bool kLazyService = true;
+#else
+const bool kLazyService = false;
+#endif
+
+int main() {
+    configureRpcThreadpool(8, true /* callerWillJoin */);
+
+    // Setup hwbinder service
+    android::sp<IMediaCasService> service = new MediaCasService();
+    android::status_t status;
+    if (kLazyService) {
+        auto serviceRegistrar = LazyServiceRegistrar::getInstance();
+        status = serviceRegistrar.registerService(service);
+    } else {
+        status = service->registerAsService();
+    }
+    LOG_ALWAYS_FATAL_IF(status != android::OK, "Error while registering cas service: %d", status);
+
+    joinRpcThreadpool();
+    return 0;
+}
diff --git a/cas/1.2/types.hal b/cas/1.2/types.hal
new file mode 100644
index 0000000..40c06cf
--- /dev/null
+++ b/cas/1.2/types.hal
@@ -0,0 +1,149 @@
+/*
+ * 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.
+ */
+
+package android.hardware.cas@1.2;
+
+import android.hardware.cas@1.0;
+import android.hardware.cas@1.1;
+
+enum Status : @1.0::Status {
+    /**
+     * ERROR_CAS_NEED_ACTIVATION is used to trigger device activation process.
+     */
+    ERROR_CAS_NEED_ACTIVATION,
+    /**
+     * ERROR_CAS_NEED_PAIRING is used to trigger pairing process.
+     */
+    ERROR_CAS_NEED_PAIRING,
+    /**
+     * ERROR_CAS_NO_CARD is used to report no smart card for descrambling.
+     */
+    ERROR_CAS_NO_CARD,
+    /**
+     * ERROR_CAS_CARD_MUTE is used to report smart card is muted for
+     * descrambling.
+     */
+    ERROR_CAS_CARD_MUTE,
+    /**
+     *  ERROR_CAS_CARD_INVALID is used to report smart card isn't valid.
+     */
+    ERROR_CAS_CARD_INVALID,
+    /**
+     *  ERROR_CAS_BLACKOUT is used to report geographical blackout.
+     */
+    ERROR_CAS_BLACKOUT,
+};
+
+/**
+ * The intented usage for the session.
+ */
+enum SessionIntent : uint32_t {
+    /**
+     * Live Stream.
+     */
+    LIVE,
+    /**
+     * Playback Recorded Stream.
+     */
+    PLAYBACK,
+    /**
+     * Record Live Stream.
+     */
+    RECORD,
+    /**
+     * View the content with Time Shift capability
+     */
+    TIMESHIFT,
+};
+
+/**
+ * The Scrambling Mode.
+ */
+enum ScramblingMode : uint32_t {
+    RESERVED = 0,
+    /**
+     * DVB (Digital Video Broadcasting) CSA1 (Common Scrambling Algorithm 1) is
+     * the default mode and shall be used when the scrambling descriptor
+     * is not present in the program map section. DVB scrambling mode is
+     * specified in ETSI EN 300 468 specification.
+     */
+    DVB_CSA1,
+    DVB_CSA2,
+    /**
+     * DVB-CSA3 in standard mode.
+     */
+    DVB_CSA3_STANDARD,
+    /**
+     * DVB-CSA3 in minimally enhanced mode.
+     */
+    DVB_CSA3_MINIMAL,
+    /**
+     * DVB-CSA3 in fully enhanced mode.
+     */
+    DVB_CSA3_ENHANCE,
+    /**
+     * DVB-CISSA version 1.
+     */
+    DVB_CISSA_V1,
+    /**
+     * ATIS-0800006 IIF Default Scrambling Algorithm (IDSA).
+     */
+    DVB_IDSA,
+    /**
+     * a symmetric key algorithm.
+     */
+    MULTI2,
+    /**
+     * Advanced Encryption System (AES) 128-bit Encryption mode.
+     */
+    AES128,
+    /**
+     * Advanced Encryption System (AES) Electronic Code Book (ECB) mode.
+     */
+    AES_ECB,
+    /**
+     * Advanced Encryption System (AES) Society of Cable Telecommunications
+     * Engineers (SCTE) 52 mode.
+     */
+    AES_SCTE52,
+    /**
+     * Triple Data Encryption Algorithm (TDES) Electronic Code Book (ECB) mode.
+     */
+    TDES_ECB,
+    /**
+     * Triple Data Encryption Algorithm (TDES) Society of Cable Telecommunications
+     * Engineers (SCTE) 52 mode.
+     */
+    TDES_SCTE52,
+ };
+
+/**
+ * The Event Type for status change.
+ */
+enum StatusEvent : uint8_t {
+    /**
+     * The status of CAS plugin was changed due to physical module insertion or
+     * removal. Client must call enumeratePlugins to update plugins' status.
+     */
+    PLUGIN_PHYSICAL_MODULE_CHANGED,
+    /**
+     * The status of supported session number was changed due to physical module
+     * insertion or removal. Client must update session resource according to
+     * latest StatusMessage from the StatusEvent. The plugin supports unlimited
+     * sesssion by default.
+     */
+    PLUGIN_SESSION_NUMBER_CHANGED,
+};
diff --git a/cas/1.2/vts/functional/Android.bp b/cas/1.2/vts/functional/Android.bp
new file mode 100644
index 0000000..9bc372c
--- /dev/null
+++ b/cas/1.2/vts/functional/Android.bp
@@ -0,0 +1,36 @@
+//
+// 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.
+//
+
+cc_test {
+    name: "VtsHalCasV1_2TargetTest",
+    defaults: ["VtsHalTargetTestDefaults"],
+    srcs: ["VtsHalCasV1_2TargetTest.cpp"],
+    static_libs: [
+        "android.hardware.cas@1.0",
+        "android.hardware.cas@1.1",
+        "android.hardware.cas@1.2",
+        "android.hardware.cas.native@1.0",
+        "android.hidl.allocator@1.0",
+        "android.hidl.memory@1.0",
+        "libhidlallocatorutils",
+        "libhidlmemory",
+    ],
+    shared_libs: [
+        "libbinder",
+    ],
+    test_suites: ["general-tests"],
+}
+
diff --git a/cas/1.2/vts/functional/OWNERS b/cas/1.2/vts/functional/OWNERS
new file mode 100644
index 0000000..29246ed
--- /dev/null
+++ b/cas/1.2/vts/functional/OWNERS
@@ -0,0 +1,3 @@
+nchalko@google.com
+chz@google.com
+quxiangfang@google.com
diff --git a/cas/1.2/vts/functional/VtsHalCasV1_2TargetTest.cpp b/cas/1.2/vts/functional/VtsHalCasV1_2TargetTest.cpp
new file mode 100644
index 0000000..8439ceb
--- /dev/null
+++ b/cas/1.2/vts/functional/VtsHalCasV1_2TargetTest.cpp
@@ -0,0 +1,619 @@
+/*
+ * 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_TAG "mediacas_hidl_hal_test"
+
+#include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
+#include <android-base/logging.h>
+#include <android/hardware/cas/1.0/IDescramblerBase.h>
+#include <android/hardware/cas/1.0/types.h>
+#include <android/hardware/cas/1.2/ICas.h>
+#include <android/hardware/cas/1.2/ICasListener.h>
+#include <android/hardware/cas/1.2/IMediaCasService.h>
+#include <android/hardware/cas/1.2/types.h>
+#include <android/hardware/cas/native/1.0/IDescrambler.h>
+#include <android/hardware/cas/native/1.0/types.h>
+#include <binder/MemoryDealer.h>
+#include <hidl/HidlSupport.h>
+#include <hidl/HidlTransportSupport.h>
+#include <hidl/Status.h>
+#include <hidlmemory/FrameworkUtils.h>
+#include <utils/Condition.h>
+#include <utils/Mutex.h>
+
+#define CLEAR_KEY_SYSTEM_ID 0xF6D8
+#define INVALID_SYSTEM_ID 0
+#define WAIT_TIMEOUT 3000000000
+
+#define PROVISION_STR                                      \
+    "{                                                   " \
+    "  \"id\": 21140844,                                 " \
+    "  \"name\": \"Test Title\",                         " \
+    "  \"lowercase_organization_name\": \"Android\",     " \
+    "  \"asset_key\": {                                  " \
+    "  \"encryption_key\": \"nezAr3CHFrmBR9R8Tedotw==\"  " \
+    "  },                                                " \
+    "  \"cas_type\": 1,                                  " \
+    "  \"track_types\": [ ]                              " \
+    "}                                                   "
+
+using android::Condition;
+using android::IMemory;
+using android::IMemoryHeap;
+using android::MemoryDealer;
+using android::Mutex;
+using android::sp;
+using android::hardware::fromHeap;
+using android::hardware::hidl_string;
+using android::hardware::hidl_vec;
+using android::hardware::HidlMemory;
+using android::hardware::Return;
+using android::hardware::Void;
+using android::hardware::cas::native::V1_0::BufferType;
+using android::hardware::cas::native::V1_0::DestinationBuffer;
+using android::hardware::cas::native::V1_0::IDescrambler;
+using android::hardware::cas::native::V1_0::ScramblingControl;
+using android::hardware::cas::native::V1_0::SharedBuffer;
+using android::hardware::cas::native::V1_0::SubSample;
+using android::hardware::cas::V1_0::HidlCasPluginDescriptor;
+using android::hardware::cas::V1_0::IDescramblerBase;
+using android::hardware::cas::V1_0::Status;
+using android::hardware::cas::V1_2::ICas;
+using android::hardware::cas::V1_2::ICasListener;
+using android::hardware::cas::V1_2::IMediaCasService;
+using android::hardware::cas::V1_2::ScramblingMode;
+using android::hardware::cas::V1_2::SessionIntent;
+using android::hardware::cas::V1_2::StatusEvent;
+
+namespace {
+
+const uint8_t kEcmBinaryBuffer[] = {
+        0x00, 0x00, 0x01, 0xf0, 0x00, 0x50, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x46, 0x00,
+        0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x27, 0x10, 0x02, 0x00,
+        0x01, 0x77, 0x01, 0x42, 0x95, 0x6c, 0x0e, 0xe3, 0x91, 0xbc, 0xfd, 0x05, 0xb1, 0x60, 0x4f,
+        0x17, 0x82, 0xa4, 0x86, 0x9b, 0x23, 0x56, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
+        0x27, 0x10, 0x02, 0x00, 0x01, 0x77, 0x01, 0x42, 0x95, 0x6c, 0xd7, 0x43, 0x62, 0xf8, 0x1c,
+        0x62, 0x19, 0x05, 0xc7, 0x3a, 0x42, 0xcd, 0xfd, 0xd9, 0x13, 0x48,
+};
+
+const SubSample kSubSamples[] = {{162, 0}, {0, 184}, {0, 184}};
+
+const uint8_t kInBinaryBuffer[] = {
+        0x00, 0x00, 0x00, 0x01, 0x09, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0xc0, 0x1e, 0xdb,
+        0x01, 0x40, 0x16, 0xec, 0x04, 0x40, 0x00, 0x00, 0x03, 0x00, 0x40, 0x00, 0x00, 0x0f, 0x03,
+        0xc5, 0x8b, 0xb8, 0x00, 0x00, 0x00, 0x01, 0x68, 0xca, 0x8c, 0xb2, 0x00, 0x00, 0x01, 0x06,
+        0x05, 0xff, 0xff, 0x70, 0xdc, 0x45, 0xe9, 0xbd, 0xe6, 0xd9, 0x48, 0xb7, 0x96, 0x2c, 0xd8,
+        0x20, 0xd9, 0x23, 0xee, 0xef, 0x78, 0x32, 0x36, 0x34, 0x20, 0x2d, 0x20, 0x63, 0x6f, 0x72,
+        0x65, 0x20, 0x31, 0x34, 0x32, 0x20, 0x2d, 0x20, 0x48, 0x2e, 0x32, 0x36, 0x34, 0x2f, 0x4d,
+        0x50, 0x45, 0x47, 0x2d, 0x34, 0x20, 0x41, 0x56, 0x43, 0x20, 0x63, 0x6f, 0x64, 0x65, 0x63,
+        0x20, 0x2d, 0x20, 0x43, 0x6f, 0x70, 0x79, 0x6c, 0x65, 0x66, 0x74, 0x20, 0x32, 0x30, 0x30,
+        0x33, 0x2d, 0x32, 0x30, 0x31, 0x34, 0x20, 0x2d, 0x20, 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f,
+        0x2f, 0x77, 0x77, 0x77, 0x2e, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6c, 0x61, 0x6e, 0x2e, 0x6f,
+        0x72, 0x67, 0x2f, 0x78, 0x32, 0x36, 0x34, 0x2e, 0x68, 0x74, 0x6d, 0x6c, 0x6e, 0x45, 0x21,
+        0x82, 0x38, 0xf0, 0x9d, 0x7d, 0x96, 0xe6, 0x94, 0xae, 0xe2, 0x87, 0x8f, 0x04, 0x49, 0xe5,
+        0xf6, 0x8c, 0x8b, 0x9a, 0x10, 0x18, 0xba, 0x94, 0xe9, 0x22, 0x31, 0x04, 0x7e, 0x60, 0x5b,
+        0xc4, 0x24, 0x00, 0x90, 0x62, 0x0d, 0xdc, 0x85, 0x74, 0x75, 0x78, 0xd0, 0x14, 0x08, 0xcb,
+        0x02, 0x1d, 0x7d, 0x9d, 0x34, 0xe8, 0x81, 0xb9, 0xf7, 0x09, 0x28, 0x79, 0x29, 0x8d, 0xe3,
+        0x14, 0xed, 0x5f, 0xca, 0xaf, 0xf4, 0x1c, 0x49, 0x15, 0xe1, 0x80, 0x29, 0x61, 0x76, 0x80,
+        0x43, 0xf8, 0x58, 0x53, 0x40, 0xd7, 0x31, 0x6d, 0x61, 0x81, 0x41, 0xe9, 0x77, 0x9f, 0x9c,
+        0xe1, 0x6d, 0xf2, 0xee, 0xd9, 0xc8, 0x67, 0xd2, 0x5f, 0x48, 0x73, 0xe3, 0x5c, 0xcd, 0xa7,
+        0x45, 0x58, 0xbb, 0xdd, 0x28, 0x1d, 0x68, 0xfc, 0xb4, 0xc6, 0xf6, 0x92, 0xf6, 0x30, 0x03,
+        0xaa, 0xe4, 0x32, 0xf6, 0x34, 0x51, 0x4b, 0x0f, 0x8c, 0xf9, 0xac, 0x98, 0x22, 0xfb, 0x49,
+        0xc8, 0xbf, 0xca, 0x8c, 0x80, 0x86, 0x5d, 0xd7, 0xa4, 0x52, 0xb1, 0xd9, 0xa6, 0x04, 0x4e,
+        0xb3, 0x2d, 0x1f, 0xb8, 0x35, 0xcc, 0x45, 0x6d, 0x9c, 0x20, 0xa7, 0xa4, 0x34, 0x59, 0x72,
+        0xe3, 0xae, 0xba, 0x49, 0xde, 0xd1, 0xaa, 0xee, 0x3d, 0x77, 0xfc, 0x5d, 0xc6, 0x1f, 0x9d,
+        0xac, 0xc2, 0x15, 0x66, 0xb8, 0xe1, 0x54, 0x4e, 0x74, 0x93, 0xdb, 0x9a, 0x24, 0x15, 0x6e,
+        0x20, 0xa3, 0x67, 0x3e, 0x5a, 0x24, 0x41, 0x5e, 0xb0, 0xe6, 0x35, 0x87, 0x1b, 0xc8, 0x7a,
+        0xf9, 0x77, 0x65, 0xe0, 0x01, 0xf2, 0x4c, 0xe4, 0x2b, 0xa9, 0x64, 0x96, 0x96, 0x0b, 0x46,
+        0xca, 0xea, 0x79, 0x0e, 0x78, 0xa3, 0x5f, 0x43, 0xfc, 0x47, 0x6a, 0x12, 0xfa, 0xc4, 0x33,
+        0x0e, 0x88, 0x1c, 0x19, 0x3a, 0x00, 0xc3, 0x4e, 0xb5, 0xd8, 0xfa, 0x8e, 0xf1, 0xbc, 0x3d,
+        0xb2, 0x7e, 0x50, 0x8d, 0x67, 0xc3, 0x6b, 0xed, 0xe2, 0xea, 0xa6, 0x1f, 0x25, 0x24, 0x7c,
+        0x94, 0x74, 0x50, 0x49, 0xe3, 0xc6, 0x58, 0x2e, 0xfd, 0x28, 0xb4, 0xc6, 0x73, 0xb1, 0x53,
+        0x74, 0x27, 0x94, 0x5c, 0xdf, 0x69, 0xb7, 0xa1, 0xd7, 0xf5, 0xd3, 0x8a, 0x2c, 0x2d, 0xb4,
+        0x5e, 0x8a, 0x16, 0x14, 0x54, 0x64, 0x6e, 0x00, 0x6b, 0x11, 0x59, 0x8a, 0x63, 0x38, 0x80,
+        0x76, 0xc3, 0xd5, 0x59, 0xf7, 0x3f, 0xd2, 0xfa, 0xa5, 0xca, 0x82, 0xff, 0x4a, 0x62, 0xf0,
+        0xe3, 0x42, 0xf9, 0x3b, 0x38, 0x27, 0x8a, 0x89, 0xaa, 0x50, 0x55, 0x4b, 0x29, 0xf1, 0x46,
+        0x7c, 0x75, 0xef, 0x65, 0xaf, 0x9b, 0x0d, 0x6d, 0xda, 0x25, 0x94, 0x14, 0xc1, 0x1b, 0xf0,
+        0xc5, 0x4c, 0x24, 0x0e, 0x65,
+};
+
+const uint8_t kOutRefBinaryBuffer[] = {
+        0x00, 0x00, 0x00, 0x01, 0x09, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x67, 0x42, 0xc0, 0x1e, 0xdb,
+        0x01, 0x40, 0x16, 0xec, 0x04, 0x40, 0x00, 0x00, 0x03, 0x00, 0x40, 0x00, 0x00, 0x0f, 0x03,
+        0xc5, 0x8b, 0xb8, 0x00, 0x00, 0x00, 0x01, 0x68, 0xca, 0x8c, 0xb2, 0x00, 0x00, 0x01, 0x06,
+        0x05, 0xff, 0xff, 0x70, 0xdc, 0x45, 0xe9, 0xbd, 0xe6, 0xd9, 0x48, 0xb7, 0x96, 0x2c, 0xd8,
+        0x20, 0xd9, 0x23, 0xee, 0xef, 0x78, 0x32, 0x36, 0x34, 0x20, 0x2d, 0x20, 0x63, 0x6f, 0x72,
+        0x65, 0x20, 0x31, 0x34, 0x32, 0x20, 0x2d, 0x20, 0x48, 0x2e, 0x32, 0x36, 0x34, 0x2f, 0x4d,
+        0x50, 0x45, 0x47, 0x2d, 0x34, 0x20, 0x41, 0x56, 0x43, 0x20, 0x63, 0x6f, 0x64, 0x65, 0x63,
+        0x20, 0x2d, 0x20, 0x43, 0x6f, 0x70, 0x79, 0x6c, 0x65, 0x66, 0x74, 0x20, 0x32, 0x30, 0x30,
+        0x33, 0x2d, 0x32, 0x30, 0x31, 0x34, 0x20, 0x2d, 0x20, 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f,
+        0x2f, 0x77, 0x77, 0x77, 0x2e, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6c, 0x61, 0x6e, 0x2e, 0x6f,
+        0x72, 0x67, 0x2f, 0x78, 0x32, 0x36, 0x34, 0x2e, 0x68, 0x74, 0x6d, 0x6c, 0x20, 0x2d, 0x20,
+        0x6f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x3a, 0x20, 0x63, 0x61, 0x62, 0x61, 0x63, 0x3d,
+        0x30, 0x20, 0x72, 0x65, 0x66, 0x3d, 0x32, 0x20, 0x64, 0x65, 0x62, 0x6c, 0x6f, 0x63, 0x6b,
+        0x3d, 0x31, 0x3a, 0x30, 0x3a, 0x30, 0x20, 0x61, 0x6e, 0x61, 0x6c, 0x79, 0x73, 0x65, 0x3d,
+        0x30, 0x78, 0x31, 0x3a, 0x30, 0x78, 0x31, 0x31, 0x31, 0x20, 0x6d, 0x65, 0x3d, 0x68, 0x65,
+        0x78, 0x20, 0x73, 0x75, 0x62, 0x6d, 0x65, 0x3d, 0x37, 0x20, 0x70, 0x73, 0x79, 0x3d, 0x31,
+        0x20, 0x70, 0x73, 0x79, 0x5f, 0x72, 0x64, 0x3d, 0x31, 0x2e, 0x30, 0x30, 0x3a, 0x30, 0x2e,
+        0x30, 0x30, 0x20, 0x6d, 0x69, 0x78, 0x65, 0x64, 0x5f, 0x72, 0x65, 0x66, 0x3d, 0x31, 0x20,
+        0x6d, 0x65, 0x5f, 0x72, 0x61, 0x6e, 0x67, 0x65, 0x3d, 0x31, 0x36, 0x20, 0x63, 0x68, 0x72,
+        0x6f, 0x6d, 0x61, 0x5f, 0x6d, 0x65, 0x3d, 0x31, 0x20, 0x74, 0x72, 0x65, 0x6c, 0x6c, 0x69,
+        0x73, 0x3d, 0x31, 0x20, 0x38, 0x78, 0x38, 0x64, 0x63, 0x74, 0x3d, 0x30, 0x20, 0x63, 0x71,
+        0x6d, 0x3d, 0x30, 0x20, 0x64, 0x65, 0x61, 0x64, 0x7a, 0x6f, 0x6e, 0x65, 0x3d, 0x32, 0x31,
+        0x2c, 0x31, 0x31, 0x20, 0x66, 0x61, 0x73, 0x74, 0x5f, 0x70, 0x73, 0x6b, 0x69, 0x70, 0x3d,
+        0x31, 0x20, 0x63, 0x68, 0x72, 0x6f, 0x6d, 0x61, 0x5f, 0x71, 0x70, 0x5f, 0x6f, 0x66, 0x66,
+        0x73, 0x65, 0x74, 0x3d, 0x2d, 0x32, 0x20, 0x74, 0x68, 0x72, 0x65, 0x61, 0x64, 0x73, 0x3d,
+        0x36, 0x30, 0x20, 0x6c, 0x6f, 0x6f, 0x6b, 0x61, 0x68, 0x65, 0x61, 0x64, 0x5f, 0x74, 0x68,
+        0x72, 0x65, 0x61, 0x64, 0x73, 0x3d, 0x35, 0x20, 0x73, 0x6c, 0x69, 0x63, 0x65, 0x64, 0x5f,
+        0x74, 0x68, 0x72, 0x65, 0x61, 0x64, 0x73, 0x3d, 0x30, 0x20, 0x6e, 0x72, 0x3d, 0x30, 0x20,
+        0x64, 0x65, 0x63, 0x69, 0x6d, 0x61, 0x74, 0x65, 0x3d, 0x31, 0x20, 0x69, 0x6e, 0x74, 0x65,
+        0x72, 0x6c, 0x61, 0x63, 0x65, 0x64, 0x3d, 0x30, 0x20, 0x62, 0x6c, 0x75, 0x72, 0x61, 0x79,
+        0x5f, 0x63, 0x6f, 0x6d, 0x70, 0x61, 0x74, 0x3d, 0x30, 0x20, 0x63, 0x6f, 0x6e, 0x73, 0x74,
+        0x72, 0x61, 0x69, 0x6e, 0x65, 0x64, 0x5f, 0x69, 0x6e, 0x74, 0x72, 0x61, 0x3d, 0x30, 0x20,
+        0x62, 0x66, 0x72, 0x61, 0x6d, 0x65, 0x73, 0x3d, 0x30, 0x20, 0x77, 0x65, 0x69, 0x67, 0x68,
+        0x74, 0x70, 0x3d, 0x30, 0x20, 0x6b, 0x65, 0x79, 0x69, 0x6e, 0x74, 0x3d, 0x32, 0x35, 0x30,
+        0x20, 0x6b, 0x65, 0x79, 0x69, 0x6e, 0x74, 0x5f, 0x6d, 0x69, 0x6e, 0x3d, 0x32, 0x35, 0x20,
+        0x73, 0x63, 0x65, 0x6e, 0x65,
+};
+
+class MediaCasListener : public ICasListener {
+  public:
+    virtual Return<void> onEvent(int32_t event, int32_t arg,
+                                 const hidl_vec<uint8_t>& data) override {
+        android::Mutex::Autolock autoLock(mMsgLock);
+        mEvent = event;
+        mEventArg = arg;
+        mEventData = data;
+
+        mEventReceived = true;
+        mMsgCondition.signal();
+        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 {
+        android::Mutex::Autolock autoLock(mMsgLock);
+        mSessionId = sessionId;
+        mEvent = event;
+        mEventArg = arg;
+        mEventData = data;
+
+        mEventReceived = true;
+        mMsgCondition.signal();
+        return Void();
+    }
+
+    virtual Return<void> onStatusUpdate(StatusEvent event, int32_t arg) override {
+        android::Mutex::Autolock autoLock(mMsgLock);
+        mStatusEvent = event;
+        mEventArg = arg;
+
+        mEventReceived = true;
+        mMsgCondition.signal();
+        return Void();
+    }
+
+    void testEventEcho(sp<ICas>& mediaCas, int32_t& event, int32_t& eventArg,
+                       hidl_vec<uint8_t>& eventData);
+
+    void testSessionEventEcho(sp<ICas>& mediaCas, const hidl_vec<uint8_t>& sessionId,
+                              int32_t& event, int32_t& eventArg, hidl_vec<uint8_t>& eventData);
+
+    void testStatusUpdate(sp<ICas>& mediaCas, std::vector<uint8_t>* sessionId, SessionIntent intent,
+                          ScramblingMode mode);
+
+  private:
+    int32_t mEvent = -1;
+    int32_t mEventArg = -1;
+    StatusEvent mStatusEvent;
+    bool mEventReceived = false;
+    hidl_vec<uint8_t> mEventData;
+    hidl_vec<uint8_t> mSessionId;
+    android::Mutex mMsgLock;
+    android::Condition mMsgCondition;
+};
+
+void MediaCasListener::testEventEcho(sp<ICas>& mediaCas, int32_t& event, int32_t& eventArg,
+                                     hidl_vec<uint8_t>& eventData) {
+    mEventReceived = false;
+    auto returnStatus = mediaCas->sendEvent(event, eventArg, eventData);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    android::Mutex::Autolock autoLock(mMsgLock);
+    while (!mEventReceived) {
+        if (-ETIMEDOUT == mMsgCondition.waitRelative(mMsgLock, WAIT_TIMEOUT)) {
+            EXPECT_TRUE(false) << "event not received within timeout";
+            return;
+        }
+    }
+
+    EXPECT_EQ(mEvent, event);
+    EXPECT_EQ(mEventArg, eventArg);
+    EXPECT_TRUE(mEventData == eventData);
+}
+
+void MediaCasListener::testSessionEventEcho(sp<ICas>& mediaCas, const hidl_vec<uint8_t>& sessionId,
+                                            int32_t& event, int32_t& eventArg,
+                                            hidl_vec<uint8_t>& eventData) {
+    mEventReceived = false;
+    auto returnStatus = mediaCas->sendSessionEvent(sessionId, event, eventArg, eventData);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    android::Mutex::Autolock autoLock(mMsgLock);
+    while (!mEventReceived) {
+        if (-ETIMEDOUT == mMsgCondition.waitRelative(mMsgLock, WAIT_TIMEOUT)) {
+            EXPECT_TRUE(false) << "event not received within timeout";
+            return;
+        }
+    }
+
+    EXPECT_TRUE(mSessionId == sessionId);
+    EXPECT_EQ(mEvent, event);
+    EXPECT_EQ(mEventArg, eventArg);
+    EXPECT_TRUE(mEventData == eventData);
+}
+
+void MediaCasListener::testStatusUpdate(sp<ICas>& mediaCas, std::vector<uint8_t>* sessionId,
+                                        SessionIntent intent, ScramblingMode mode) {
+    mEventReceived = false;
+    android::hardware::cas::V1_2::Status sessionStatus;
+    auto returnVoid = mediaCas->openSession_1_2(
+            intent, mode,
+            [&](android::hardware::cas::V1_2::Status status, const hidl_vec<uint8_t>& id) {
+                sessionStatus = status;
+                *sessionId = id;
+            });
+    EXPECT_TRUE(returnVoid.isOk());
+    EXPECT_EQ(android::hardware::cas::V1_2::Status::OK, sessionStatus);
+
+    android::Mutex::Autolock autoLock(mMsgLock);
+    while (!mEventReceived) {
+        if (-ETIMEDOUT == mMsgCondition.waitRelative(mMsgLock, WAIT_TIMEOUT)) {
+            EXPECT_TRUE(false) << "event not received within timeout";
+            return;
+        }
+    }
+    EXPECT_EQ(mStatusEvent, static_cast<StatusEvent>(intent));
+    EXPECT_EQ(mEventArg, static_cast<int32_t>(mode));
+}
+
+// Test environment for Cas HIDL HAL.
+class CasHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+  public:
+    // get the test environment singleton
+    static CasHidlEnvironment* Instance() {
+        static CasHidlEnvironment* instance = new CasHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IMediaCasService>(); }
+};
+
+class MediaCasHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+  public:
+    virtual void SetUp() override {
+        mService = ::testing::VtsHalHidlTargetTestBase::getService<IMediaCasService>(
+                CasHidlEnvironment::Instance()->getServiceName<IMediaCasService>());
+        ASSERT_NE(mService, nullptr);
+    }
+
+    sp<IMediaCasService> mService;
+
+  protected:
+    static void description(const std::string& description) {
+        RecordProperty("description", description);
+    }
+
+    sp<ICas> mMediaCas;
+    sp<IDescramblerBase> mDescramblerBase;
+    sp<MediaCasListener> mCasListener;
+    typedef struct _OobInputTestParams {
+        const SubSample* subSamples;
+        uint32_t numSubSamples;
+        size_t imemSizeActual;
+        uint64_t imemOffset;
+        uint64_t imemSize;
+        uint64_t srcOffset;
+        uint64_t dstOffset;
+    } OobInputTestParams;
+
+    ::testing::AssertionResult createCasPlugin(int32_t caSystemId);
+    ::testing::AssertionResult openCasSession(std::vector<uint8_t>* sessionId);
+    ::testing::AssertionResult openCasSession_1_2(std::vector<uint8_t>* sessionId,
+                                                  SessionIntent intent, ScramblingMode mode);
+    ::testing::AssertionResult descrambleTestInputBuffer(const sp<IDescrambler>& descrambler,
+                                                         Status* descrambleStatus,
+                                                         sp<IMemory>* hidlInMemory);
+    ::testing::AssertionResult descrambleTestOobInput(const sp<IDescrambler>& descrambler,
+                                                      Status* descrambleStatus,
+                                                      const OobInputTestParams& params);
+};
+
+::testing::AssertionResult MediaCasHidlTest::createCasPlugin(int32_t caSystemId) {
+    auto status = mService->isSystemIdSupported(caSystemId);
+    if (!status.isOk() || !status) {
+        return ::testing::AssertionFailure();
+    }
+    status = mService->isDescramblerSupported(caSystemId);
+    if (!status.isOk() || !status) {
+        return ::testing::AssertionFailure();
+    }
+
+    mCasListener = new MediaCasListener();
+    auto pluginStatus = mService->createPluginExt(caSystemId, mCasListener);
+    if (!pluginStatus.isOk()) {
+        return ::testing::AssertionFailure();
+    }
+    mMediaCas = ICas::castFrom(pluginStatus);
+    if (mMediaCas == nullptr) {
+        return ::testing::AssertionFailure();
+    }
+
+    auto descramblerStatus = mService->createDescrambler(caSystemId);
+    if (!descramblerStatus.isOk()) {
+        return ::testing::AssertionFailure();
+    }
+    mDescramblerBase = descramblerStatus;
+    return ::testing::AssertionResult(mDescramblerBase != nullptr);
+}
+
+::testing::AssertionResult MediaCasHidlTest::openCasSession(std::vector<uint8_t>* sessionId) {
+    Status sessionStatus;
+    auto returnVoid = mMediaCas->openSession([&](Status status, const hidl_vec<uint8_t>& id) {
+        sessionStatus = status;
+        *sessionId = id;
+    });
+    return ::testing::AssertionResult(returnVoid.isOk() && (Status::OK == sessionStatus));
+}
+
+::testing::AssertionResult MediaCasHidlTest::descrambleTestInputBuffer(
+        const sp<IDescrambler>& descrambler, Status* descrambleStatus, sp<IMemory>* inMemory) {
+    hidl_vec<SubSample> hidlSubSamples;
+    hidlSubSamples.setToExternal(const_cast<SubSample*>(kSubSamples),
+                                 (sizeof(kSubSamples) / sizeof(SubSample)), false /*own*/);
+
+    sp<MemoryDealer> dealer = new MemoryDealer(sizeof(kInBinaryBuffer), "vts-cas");
+    if (nullptr == dealer.get()) {
+        ALOGE("couldn't get MemoryDealer!");
+        return ::testing::AssertionFailure();
+    }
+
+    sp<IMemory> mem = dealer->allocate(sizeof(kInBinaryBuffer));
+    if (nullptr == mem.get()) {
+        ALOGE("couldn't allocate IMemory!");
+        return ::testing::AssertionFailure();
+    }
+    *inMemory = mem;
+
+    // build HidlMemory from memory heap
+    ssize_t offset;
+    size_t size;
+    sp<IMemoryHeap> heap = mem->getMemory(&offset, &size);
+    if (nullptr == heap.get()) {
+        ALOGE("couldn't get memory heap!");
+        return ::testing::AssertionFailure();
+    }
+
+    uint8_t* ipBuffer = static_cast<uint8_t*>(static_cast<void*>(mem->unsecurePointer()));
+    memcpy(ipBuffer, kInBinaryBuffer, sizeof(kInBinaryBuffer));
+
+    // hidlMemory is not to be passed out of scope!
+    sp<HidlMemory> hidlMemory = fromHeap(heap);
+
+    SharedBuffer srcBuffer = {
+            .heapBase = *hidlMemory, .offset = (uint64_t)offset, .size = (uint64_t)size};
+
+    DestinationBuffer dstBuffer;
+    dstBuffer.type = BufferType::SHARED_MEMORY;
+    dstBuffer.nonsecureMemory = srcBuffer;
+
+    uint32_t outBytes;
+    hidl_string detailedError;
+    auto returnVoid = descrambler->descramble(
+            ScramblingControl::EVENKEY /*2*/, hidlSubSamples, srcBuffer, 0, dstBuffer, 0,
+            [&](Status status, uint32_t bytesWritten, const hidl_string& detailedErr) {
+                *descrambleStatus = status;
+                outBytes = bytesWritten;
+                detailedError = detailedErr;
+            });
+    if (!returnVoid.isOk() || *descrambleStatus != Status::OK) {
+        ALOGI("descramble failed, trans=%s, status=%d, outBytes=%u, error=%s",
+              returnVoid.description().c_str(), *descrambleStatus, outBytes, detailedError.c_str());
+    }
+    return ::testing::AssertionResult(returnVoid.isOk());
+}
+
+::testing::AssertionResult MediaCasHidlTest::descrambleTestOobInput(
+        const sp<IDescrambler>& descrambler, Status* descrambleStatus,
+        const OobInputTestParams& params) {
+    hidl_vec<SubSample> hidlSubSamples;
+    hidlSubSamples.setToExternal(const_cast<SubSample*>(params.subSamples), params.numSubSamples,
+                                 false /*own*/);
+
+    sp<MemoryDealer> dealer = new MemoryDealer(params.imemSizeActual, "vts-cas");
+    if (nullptr == dealer.get()) {
+        ALOGE("couldn't get MemoryDealer!");
+        return ::testing::AssertionFailure();
+    }
+
+    sp<IMemory> mem = dealer->allocate(params.imemSizeActual);
+    if (nullptr == mem.get()) {
+        ALOGE("couldn't allocate IMemory!");
+        return ::testing::AssertionFailure();
+    }
+
+    // build HidlMemory from memory heap
+    ssize_t offset;
+    size_t size;
+    sp<IMemoryHeap> heap = mem->getMemory(&offset, &size);
+    if (nullptr == heap.get()) {
+        ALOGE("couldn't get memory heap!");
+        return ::testing::AssertionFailure();
+    }
+
+    // hidlMemory is not to be passed out of scope!
+    sp<HidlMemory> hidlMemory = fromHeap(heap);
+
+    SharedBuffer srcBuffer = {
+            .heapBase = *hidlMemory,
+            .offset = (uint64_t)offset + params.imemOffset,
+            .size = (uint64_t)params.imemSize,
+    };
+
+    DestinationBuffer dstBuffer;
+    dstBuffer.type = BufferType::SHARED_MEMORY;
+    dstBuffer.nonsecureMemory = srcBuffer;
+
+    uint32_t outBytes;
+    hidl_string detailedError;
+    auto returnVoid = descrambler->descramble(
+            ScramblingControl::EVENKEY /*2*/, hidlSubSamples, srcBuffer, params.srcOffset,
+            dstBuffer, params.dstOffset,
+            [&](Status status, uint32_t bytesWritten, const hidl_string& detailedErr) {
+                *descrambleStatus = status;
+                outBytes = bytesWritten;
+                detailedError = detailedErr;
+            });
+    if (!returnVoid.isOk() || *descrambleStatus != Status::OK) {
+        ALOGI("descramble failed, trans=%s, status=%d, outBytes=%u, error=%s",
+              returnVoid.description().c_str(), *descrambleStatus, outBytes, detailedError.c_str());
+    }
+    return ::testing::AssertionResult(returnVoid.isOk());
+}
+
+TEST_F(MediaCasHidlTest, TestClearKeyApisWithSession) {
+    description("Test that valid call sequences with SessionEvent send and receive");
+
+    ASSERT_TRUE(createCasPlugin(CLEAR_KEY_SYSTEM_ID));
+
+    auto returnStatus = mMediaCas->provision(hidl_string(PROVISION_STR));
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    hidl_vec<uint8_t> hidlPvtData;
+    hidlPvtData.resize(256);
+    returnStatus = mMediaCas->setPrivateData(hidlPvtData);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    std::vector<uint8_t> sessionId;
+    ASSERT_TRUE(openCasSession(&sessionId));
+    returnStatus = mMediaCas->setSessionPrivateData(sessionId, hidlPvtData);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    std::vector<uint8_t> streamSessionId;
+    ASSERT_TRUE(openCasSession(&streamSessionId));
+    returnStatus = mMediaCas->setSessionPrivateData(streamSessionId, hidlPvtData);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    returnStatus = mDescramblerBase->setMediaCasSession(streamSessionId);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    hidl_vec<uint8_t> hidlNullPtr;
+    hidlNullPtr.setToExternal(static_cast<uint8_t*>(nullptr), 0);
+    returnStatus = mMediaCas->refreshEntitlements(3, hidlNullPtr);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    uint8_t refreshData[] = {0, 1, 2, 3};
+    hidl_vec<uint8_t> hidlRefreshData;
+    hidlRefreshData.setToExternal(static_cast<uint8_t*>(refreshData), sizeof(refreshData));
+    returnStatus = mMediaCas->refreshEntitlements(10, hidlRefreshData);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    int32_t eventID = 1;
+    int32_t eventArg = 2;
+    mCasListener->testEventEcho(mMediaCas, eventID, eventArg, hidlNullPtr);
+    mCasListener->testSessionEventEcho(mMediaCas, sessionId, eventID, eventArg, hidlNullPtr);
+
+    eventID = 3;
+    eventArg = 4;
+    uint8_t eventData[] = {'e', 'v', 'e', 'n', 't', 'd', 'a', 't', 'a'};
+    hidl_vec<uint8_t> hidlEventData;
+    hidlEventData.setToExternal(static_cast<uint8_t*>(eventData), sizeof(eventData));
+    mCasListener->testEventEcho(mMediaCas, eventID, eventArg, hidlEventData);
+    mCasListener->testSessionEventEcho(mMediaCas, sessionId, eventID, eventArg, hidlEventData);
+
+    SessionIntent intent = SessionIntent::LIVE;
+    ScramblingMode mode = ScramblingMode::DVB_CSA1;
+    mCasListener->testStatusUpdate(mMediaCas, &sessionId, intent, mode);
+
+    uint8_t clearKeyEmmData[] = {'c', 'l', 'e', 'a', 'r', 'k', 'e', 'y', 'e', 'm', 'm'};
+    hidl_vec<uint8_t> hidlClearKeyEmm;
+    hidlClearKeyEmm.setToExternal(static_cast<uint8_t*>(clearKeyEmmData), sizeof(clearKeyEmmData));
+    returnStatus = mMediaCas->processEmm(hidlClearKeyEmm);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    hidl_vec<uint8_t> hidlEcm;
+    hidlEcm.setToExternal(const_cast<uint8_t*>(kEcmBinaryBuffer), sizeof(kEcmBinaryBuffer));
+    returnStatus = mMediaCas->processEcm(sessionId, hidlEcm);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+    returnStatus = mMediaCas->processEcm(streamSessionId, hidlEcm);
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("video/avc"));
+
+    sp<IDescrambler> descrambler;
+    descrambler = IDescrambler::castFrom(mDescramblerBase);
+    ASSERT_NE(descrambler, nullptr);
+
+    Status descrambleStatus = Status::OK;
+    sp<IMemory> dataMemory;
+
+    ASSERT_TRUE(descrambleTestInputBuffer(descrambler, &descrambleStatus, &dataMemory));
+    EXPECT_EQ(Status::OK, descrambleStatus);
+
+    ASSERT_NE(nullptr, dataMemory.get());
+    uint8_t* opBuffer = static_cast<uint8_t*>(static_cast<void*>(dataMemory->unsecurePointer()));
+
+    int compareResult =
+            memcmp(static_cast<const void*>(opBuffer),
+                   static_cast<const void*>(kOutRefBinaryBuffer), sizeof(kOutRefBinaryBuffer));
+    EXPECT_EQ(0, compareResult);
+
+    returnStatus = mDescramblerBase->release();
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+
+    returnStatus = mMediaCas->release();
+    EXPECT_TRUE(returnStatus.isOk());
+    EXPECT_EQ(Status::OK, returnStatus);
+}
+
+}  // anonymous namespace
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(CasHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    CasHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    LOG(INFO) << "Test result = " << status;
+    return status;
+}