diff --git a/audio/effect/2.0/vts/functional/VtsHalAudioEffectV2_0TargetTest.cpp b/audio/effect/2.0/vts/functional/VtsHalAudioEffectV2_0TargetTest.cpp
index f069c46..c90c4fa 100644
--- a/audio/effect/2.0/vts/functional/VtsHalAudioEffectV2_0TargetTest.cpp
+++ b/audio/effect/2.0/vts/functional/VtsHalAudioEffectV2_0TargetTest.cpp
@@ -27,6 +27,7 @@
 #include <android/hidl/memory/1.0/IMemory.h>
 
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 
 using android::hardware::audio::common::V2_0::AudioDevice;
 using android::hardware::audio::common::V2_0::AudioHandleConsts;
@@ -59,13 +60,26 @@
 #define ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
 #endif
 
+// Test environment for Audio Effects Factory HIDL HAL.
+class AudioEffectsFactoryHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static AudioEffectsFactoryHidlEnvironment* Instance() {
+        static AudioEffectsFactoryHidlEnvironment* instance =
+            new AudioEffectsFactoryHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IEffectsFactory>(); }
+};
+
 // The main test class for Audio Effects Factory HIDL HAL.
 class AudioEffectsFactoryHidlTest : public ::testing::VtsHalHidlTargetTestBase {
  public:
   void SetUp() override {
-    effectsFactory =
-        ::testing::VtsHalHidlTargetTestBase::getService<IEffectsFactory>();
-    ASSERT_NE(effectsFactory, nullptr);
+      effectsFactory = ::testing::VtsHalHidlTargetTestBase::getService<IEffectsFactory>(
+          AudioEffectsFactoryHidlEnvironment::Instance()->getServiceName<IEffectsFactory>());
+      ASSERT_NE(effectsFactory, nullptr);
   }
 
   void TearDown() override { effectsFactory.clear(); }
@@ -824,3 +838,12 @@
   EXPECT_EQ(Result::OK, retval);
   EXPECT_EQ(gain, actualGain);
 }
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(AudioEffectsFactoryHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    AudioEffectsFactoryHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    LOG(INFO) << "Test result = " << status;
+    return status;
+}
diff --git a/biometrics/fingerprint/2.1/vts/functional/VtsHalBiometricsFingerprintV2_1TargetTest.cpp b/biometrics/fingerprint/2.1/vts/functional/VtsHalBiometricsFingerprintV2_1TargetTest.cpp
index 638af9f..a7f4031 100644
--- a/biometrics/fingerprint/2.1/vts/functional/VtsHalBiometricsFingerprintV2_1TargetTest.cpp
+++ b/biometrics/fingerprint/2.1/vts/functional/VtsHalBiometricsFingerprintV2_1TargetTest.cpp
@@ -16,12 +16,13 @@
 
 #define LOG_TAG "fingerprint_hidl_hal_test"
 
+#include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 #include <android-base/logging.h>
 #include <android/hardware/biometrics/fingerprint/2.1/IBiometricsFingerprint.h>
 #include <android/hardware/biometrics/fingerprint/2.1/IBiometricsFingerprintClientCallback.h>
 #include <hidl/HidlSupport.h>
 #include <hidl/HidlTransportSupport.h>
-#include <VtsHalHidlTargetTestBase.h>
 
 #include <cinttypes>
 #include <future>
@@ -179,10 +180,23 @@
   std::promise<void> promise;
 };
 
+// Test environment for Fingerprint HIDL HAL.
+class FingerprintHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+ public:
+  // get the test environment singleton
+  static FingerprintHidlEnvironment* Instance() {
+    static FingerprintHidlEnvironment* instance = new FingerprintHidlEnvironment;
+    return instance;
+  }
+
+  virtual void registerTestServices() override { registerTestService<IBiometricsFingerprint>(); }
+};
+
 class FingerprintHidlTest : public ::testing::VtsHalHidlTargetTestBase {
  public:
   virtual void SetUp() override {
-    mService = ::testing::VtsHalHidlTargetTestBase::getService<IBiometricsFingerprint>();
+    mService = ::testing::VtsHalHidlTargetTestBase::getService<IBiometricsFingerprint>(
+        FingerprintHidlEnvironment::Instance()->getServiceName<IBiometricsFingerprint>());
     ASSERT_FALSE(mService == nullptr);
 
     // Create an active group
@@ -454,7 +468,9 @@
 }  // anonymous namespace
 
 int main(int argc, char **argv) {
+  ::testing::AddGlobalTestEnvironment(FingerprintHidlEnvironment::Instance());
   ::testing::InitGoogleTest(&argc, argv);
+  FingerprintHidlEnvironment::Instance()->init(&argc, argv);
   int status = RUN_ALL_TESTS();
   LOG(INFO) << "Test result = " << status;
   return status;
diff --git a/broadcastradio/1.2/default/Android.bp b/broadcastradio/1.1/default/Android.bp
similarity index 88%
rename from broadcastradio/1.2/default/Android.bp
rename to broadcastradio/1.1/default/Android.bp
index bd4be77..52fb45b 100644
--- a/broadcastradio/1.2/default/Android.bp
+++ b/broadcastradio/1.1/default/Android.bp
@@ -15,8 +15,8 @@
 //
 
 cc_binary {
-    name: "android.hardware.broadcastradio@1.2-service",
-    init_rc: ["android.hardware.broadcastradio@1.2-service.rc"],
+    name: "android.hardware.broadcastradio@1.1-service",
+    init_rc: ["android.hardware.broadcastradio@1.1-service.rc"],
     vendor: true,
     relative_install_path: "hw",
     cflags: [
@@ -39,7 +39,6 @@
     shared_libs: [
         "android.hardware.broadcastradio@1.0",
         "android.hardware.broadcastradio@1.1",
-        "android.hardware.broadcastradio@1.2",
         "libbase",
         "libhidlbase",
         "libhidltransport",
diff --git a/broadcastradio/1.2/default/BroadcastRadio.cpp b/broadcastradio/1.1/default/BroadcastRadio.cpp
similarity index 99%
rename from broadcastradio/1.2/default/BroadcastRadio.cpp
rename to broadcastradio/1.1/default/BroadcastRadio.cpp
index 74f6589..2933aa7 100644
--- a/broadcastradio/1.2/default/BroadcastRadio.cpp
+++ b/broadcastradio/1.1/default/BroadcastRadio.cpp
@@ -25,7 +25,7 @@
 namespace android {
 namespace hardware {
 namespace broadcastradio {
-namespace V1_2 {
+namespace V1_1 {
 namespace implementation {
 
 using V1_0::Band;
@@ -190,7 +190,7 @@
 }
 
 }  // namespace implementation
-}  // namespace V1_2
+}  // namespace V1_1
 }  // namespace broadcastradio
 }  // namespace hardware
 }  // namespace android
diff --git a/broadcastradio/1.2/default/BroadcastRadio.h b/broadcastradio/1.1/default/BroadcastRadio.h
similarity index 85%
rename from broadcastradio/1.2/default/BroadcastRadio.h
rename to broadcastradio/1.1/default/BroadcastRadio.h
index 94d62b9..bdf3b87 100644
--- a/broadcastradio/1.2/default/BroadcastRadio.h
+++ b/broadcastradio/1.1/default/BroadcastRadio.h
@@ -13,24 +13,24 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_2_BROADCASTRADIO_H
-#define ANDROID_HARDWARE_BROADCASTRADIO_V1_2_BROADCASTRADIO_H
+#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_1_BROADCASTRADIO_H
+#define ANDROID_HARDWARE_BROADCASTRADIO_V1_1_BROADCASTRADIO_H
 
 #include "Tuner.h"
 
 #include <android/hardware/broadcastradio/1.1/IBroadcastRadio.h>
-#include <android/hardware/broadcastradio/1.2/types.h>
+#include <android/hardware/broadcastradio/1.1/types.h>
 
 namespace android {
 namespace hardware {
 namespace broadcastradio {
-namespace V1_2 {
+namespace V1_1 {
 namespace implementation {
 
 struct AmFmBandConfig {
     V1_0::Band type;
-    uint32_t lowerLimit;  // kHz
-    uint32_t upperLimit;  // kHz
+    uint32_t lowerLimit;             // kHz
+    uint32_t upperLimit;             // kHz
     std::vector<uint32_t> spacings;  // kHz
 };
 
@@ -73,9 +73,9 @@
 };
 
 }  // namespace implementation
-}  // namespace V1_2
+}  // namespace V1_1
 }  // namespace broadcastradio
 }  // namespace hardware
 }  // namespace android
 
-#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_2_BROADCASTRADIO_H
+#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_1_BROADCASTRADIO_H
diff --git a/broadcastradio/1.2/default/BroadcastRadioFactory.cpp b/broadcastradio/1.1/default/BroadcastRadioFactory.cpp
similarity index 97%
rename from broadcastradio/1.2/default/BroadcastRadioFactory.cpp
rename to broadcastradio/1.1/default/BroadcastRadioFactory.cpp
index 8f17aff..aecc967 100644
--- a/broadcastradio/1.2/default/BroadcastRadioFactory.cpp
+++ b/broadcastradio/1.1/default/BroadcastRadioFactory.cpp
@@ -25,7 +25,7 @@
 namespace android {
 namespace hardware {
 namespace broadcastradio {
-namespace V1_2 {
+namespace V1_1 {
 namespace implementation {
 
 using V1_0::Class;
@@ -57,7 +57,7 @@
 }
 
 }  // namespace implementation
-}  // namespace V1_2
+}  // namespace V1_1
 }  // namespace broadcastradio
 }  // namespace hardware
 }  // namespace android
diff --git a/broadcastradio/1.2/default/BroadcastRadioFactory.h b/broadcastradio/1.1/default/BroadcastRadioFactory.h
similarity index 77%
rename from broadcastradio/1.2/default/BroadcastRadioFactory.h
rename to broadcastradio/1.1/default/BroadcastRadioFactory.h
index c365ae0..62b65bc 100644
--- a/broadcastradio/1.2/default/BroadcastRadioFactory.h
+++ b/broadcastradio/1.1/default/BroadcastRadioFactory.h
@@ -13,17 +13,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_2_BROADCASTRADIOFACTORY_H
-#define ANDROID_HARDWARE_BROADCASTRADIO_V1_2_BROADCASTRADIOFACTORY_H
+#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_1_BROADCASTRADIOFACTORY_H
+#define ANDROID_HARDWARE_BROADCASTRADIO_V1_1_BROADCASTRADIOFACTORY_H
 
 #include <android/hardware/broadcastradio/1.1/IBroadcastRadio.h>
-#include <android/hardware/broadcastradio/1.2/IBroadcastRadioFactory.h>
-#include <android/hardware/broadcastradio/1.2/types.h>
+#include <android/hardware/broadcastradio/1.1/IBroadcastRadioFactory.h>
+#include <android/hardware/broadcastradio/1.1/types.h>
 
 namespace android {
 namespace hardware {
 namespace broadcastradio {
-namespace V1_2 {
+namespace V1_1 {
 namespace implementation {
 
 struct BroadcastRadioFactory : public IBroadcastRadioFactory {
@@ -37,9 +37,9 @@
 };
 
 }  // namespace implementation
-}  // namespace V1_2
+}  // namespace V1_1
 }  // namespace broadcastradio
 }  // namespace hardware
 }  // namespace android
 
-#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_2_BROADCASTRADIOFACTORY_H
+#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_1_BROADCASTRADIOFACTORY_H
diff --git a/broadcastradio/1.2/default/OWNERS b/broadcastradio/1.1/default/OWNERS
similarity index 100%
rename from broadcastradio/1.2/default/OWNERS
rename to broadcastradio/1.1/default/OWNERS
diff --git a/broadcastradio/1.2/default/Tuner.cpp b/broadcastradio/1.1/default/Tuner.cpp
similarity index 93%
rename from broadcastradio/1.2/default/Tuner.cpp
rename to broadcastradio/1.1/default/Tuner.cpp
index e95a132..2be070d 100644
--- a/broadcastradio/1.2/default/Tuner.cpp
+++ b/broadcastradio/1.1/default/Tuner.cpp
@@ -17,8 +17,8 @@
 #define LOG_TAG "BroadcastRadioDefault.tuner"
 #define LOG_NDEBUG 0
 
-#include "BroadcastRadio.h"
 #include "Tuner.h"
+#include "BroadcastRadio.h"
 
 #include <broadcastradio-utils-1x/Utils.h>
 #include <log/log.h>
@@ -26,7 +26,7 @@
 namespace android {
 namespace hardware {
 namespace broadcastradio {
-namespace V1_2 {
+namespace V1_1 {
 namespace implementation {
 
 using namespace std::chrono_literals;
@@ -35,13 +35,13 @@
 using V1_0::BandConfig;
 using V1_0::Class;
 using V1_0::Direction;
+using V1_1::IdentifierType;
 using V1_1::ProgramInfo;
 using V1_1::ProgramInfoFlags;
 using V1_1::ProgramListResult;
 using V1_1::ProgramSelector;
 using V1_1::ProgramType;
 using V1_1::VendorKeyValue;
-using V1_2::IdentifierType;
 using utils::HalRevision;
 
 using std::chrono::milliseconds;
@@ -62,7 +62,6 @@
     : mClassId(classId),
       mCallback(callback),
       mCallback1_1(V1_1::ITunerCallback::castFrom(callback).withDefault(nullptr)),
-      mCallback1_2(V1_2::ITunerCallback::castFrom(callback).withDefault(nullptr)),
       mVirtualRadio(getRadio(classId)),
       mIsAnalogForced(false) {}
 
@@ -130,9 +129,7 @@
 }
 
 HalRevision Tuner::getHalRev() const {
-    if (mCallback1_2 != nullptr) {
-        return HalRevision::V1_2;
-    } else if (mCallback1_1 != nullptr) {
+    if (mCallback1_1 != nullptr) {
         return HalRevision::V1_1;
     } else {
         return HalRevision::V1_0;
@@ -282,7 +279,7 @@
             return Result::INVALID_ARGUMENTS;
         }
     } else if (programType == ProgramType::DAB) {
-        if (!utils::hasId(sel, IdentifierType::DAB_SID_EXT)) return Result::INVALID_ARGUMENTS;
+        if (!utils::hasId(sel, IdentifierType::DAB_SIDECC)) return Result::INVALID_ARGUMENTS;
     } else if (programType == ProgramType::DRMO) {
         if (!utils::hasId(sel, IdentifierType::DRMO_SERVICE_ID)) return Result::INVALID_ARGUMENTS;
     } else if (programType == ProgramType::SXM) {
@@ -386,24 +383,8 @@
     return {};
 }
 
-Return<void> Tuner::setParameters(const hidl_vec<VendorKeyValue>& /* parameters */,
-        setParameters_cb _hidl_cb) {
-    ALOGV("%s", __func__);
-
-    _hidl_cb({});
-    return {};
-}
-
-Return<void> Tuner::getParameters(const hidl_vec<hidl_string>& /* keys */,
-        getParameters_cb _hidl_cb) {
-    ALOGV("%s", __func__);
-
-    _hidl_cb({});
-    return {};
-}
-
 }  // namespace implementation
-}  // namespace V1_2
+}  // namespace V1_1
 }  // namespace broadcastradio
 }  // namespace hardware
 }  // namespace android
diff --git a/broadcastradio/1.2/default/Tuner.h b/broadcastradio/1.1/default/Tuner.h
similarity index 79%
rename from broadcastradio/1.2/default/Tuner.h
rename to broadcastradio/1.1/default/Tuner.h
index 7e68354..764d5b3 100644
--- a/broadcastradio/1.2/default/Tuner.h
+++ b/broadcastradio/1.1/default/Tuner.h
@@ -13,19 +13,19 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_2_TUNER_H
-#define ANDROID_HARDWARE_BROADCASTRADIO_V1_2_TUNER_H
+#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_1_TUNER_H
+#define ANDROID_HARDWARE_BROADCASTRADIO_V1_1_TUNER_H
 
 #include "VirtualRadio.h"
 
-#include <android/hardware/broadcastradio/1.2/ITuner.h>
-#include <android/hardware/broadcastradio/1.2/ITunerCallback.h>
+#include <android/hardware/broadcastradio/1.1/ITuner.h>
+#include <android/hardware/broadcastradio/1.1/ITunerCallback.h>
 #include <broadcastradio-utils/WorkerThread.h>
 
 namespace android {
 namespace hardware {
 namespace broadcastradio {
-namespace V1_2 {
+namespace V1_1 {
 namespace implementation {
 
 struct Tuner : public ITuner {
@@ -33,7 +33,7 @@
 
     void forceClose();
 
-    // V1_2::ITuner methods
+    // V1_1::ITuner methods
     virtual Return<Result> setConfiguration(const V1_0::BandConfig& config) override;
     virtual Return<void> getConfiguration(getConfiguration_cb _hidl_cb) override;
     virtual Return<Result> scan(V1_0::Direction direction, bool skipSubChannel) override;
@@ -49,10 +49,6 @@
                                         getProgramList_cb _hidl_cb) override;
     virtual Return<Result> setAnalogForced(bool isForced) override;
     virtual Return<void> isAnalogForced(isAnalogForced_cb _hidl_cb) override;
-    virtual Return<void> setParameters(const hidl_vec<V1_1::VendorKeyValue>& parameters,
-                                       setParameters_cb _hidl_cb) override;
-    virtual Return<void> getParameters(const hidl_vec<hidl_string>& keys,
-                                       getParameters_cb _hidl_cb) override;
 
    private:
     std::mutex mMut;
@@ -62,7 +58,6 @@
     V1_0::Class mClassId;
     const sp<V1_0::ITunerCallback> mCallback;
     const sp<V1_1::ITunerCallback> mCallback1_1;
-    const sp<V1_2::ITunerCallback> mCallback1_2;
 
     std::reference_wrapper<VirtualRadio> mVirtualRadio;
     bool mIsAmfmConfigSet = false;
@@ -77,9 +72,9 @@
 };
 
 }  // namespace implementation
-}  // namespace V1_2
+}  // namespace V1_1
 }  // namespace broadcastradio
 }  // namespace hardware
 }  // namespace android
 
-#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_2_TUNER_H
+#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_1_TUNER_H
diff --git a/broadcastradio/1.2/default/VirtualProgram.cpp b/broadcastradio/1.1/default/VirtualProgram.cpp
similarity index 97%
rename from broadcastradio/1.2/default/VirtualProgram.cpp
rename to broadcastradio/1.1/default/VirtualProgram.cpp
index 3594f64..20dc1f5 100644
--- a/broadcastradio/1.2/default/VirtualProgram.cpp
+++ b/broadcastradio/1.1/default/VirtualProgram.cpp
@@ -22,7 +22,7 @@
 namespace android {
 namespace hardware {
 namespace broadcastradio {
-namespace V1_2 {
+namespace V1_1 {
 namespace implementation {
 
 using std::vector;
@@ -30,9 +30,9 @@
 using V1_0::MetaData;
 using V1_0::MetadataKey;
 using V1_0::MetadataType;
+using V1_1::IdentifierType;
 using V1_1::ProgramInfo;
 using V1_1::VendorKeyValue;
-using V1_2::IdentifierType;
 using utils::HalRevision;
 
 static MetaData createDemoBitmap(MetadataKey key, HalRevision halRev) {
@@ -96,7 +96,7 @@
 }
 
 }  // namespace implementation
-}  // namespace V1_2
+}  // namespace V1_1
 }  // namespace broadcastradio
 }  // namespace hardware
 }  // namespace android
diff --git a/broadcastradio/1.2/default/VirtualProgram.h b/broadcastradio/1.1/default/VirtualProgram.h
similarity index 84%
rename from broadcastradio/1.2/default/VirtualProgram.h
rename to broadcastradio/1.1/default/VirtualProgram.h
index c0b20f0..fd7a5e7 100644
--- a/broadcastradio/1.2/default/VirtualProgram.h
+++ b/broadcastradio/1.1/default/VirtualProgram.h
@@ -13,16 +13,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_2_VIRTUALPROGRAM_H
-#define ANDROID_HARDWARE_BROADCASTRADIO_V1_2_VIRTUALPROGRAM_H
+#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_1_VIRTUALPROGRAM_H
+#define ANDROID_HARDWARE_BROADCASTRADIO_V1_1_VIRTUALPROGRAM_H
 
-#include <android/hardware/broadcastradio/1.2/types.h>
+#include <android/hardware/broadcastradio/1.1/types.h>
 #include <broadcastradio-utils-1x/Utils.h>
 
 namespace android {
 namespace hardware {
 namespace broadcastradio {
-namespace V1_2 {
+namespace V1_1 {
 namespace implementation {
 
 /**
@@ -47,9 +47,9 @@
                                                     utils::HalRevision halRev);
 
 }  // namespace implementation
-}  // namespace V1_2
+}  // namespace V1_1
 }  // namespace broadcastradio
 }  // namespace hardware
 }  // namespace android
 
-#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_2_VIRTUALPROGRAM_H
+#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_1_VIRTUALPROGRAM_H
diff --git a/broadcastradio/1.2/default/VirtualRadio.cpp b/broadcastradio/1.1/default/VirtualRadio.cpp
similarity index 98%
rename from broadcastradio/1.2/default/VirtualRadio.cpp
rename to broadcastradio/1.1/default/VirtualRadio.cpp
index 8988080..5b79155 100644
--- a/broadcastradio/1.2/default/VirtualRadio.cpp
+++ b/broadcastradio/1.1/default/VirtualRadio.cpp
@@ -24,7 +24,7 @@
 namespace android {
 namespace hardware {
 namespace broadcastradio {
-namespace V1_2 {
+namespace V1_1 {
 namespace implementation {
 
 using V1_0::Band;
@@ -100,7 +100,7 @@
 }
 
 }  // namespace implementation
-}  // namespace V1_2
+}  // namespace V1_1
 }  // namespace broadcastradio
 }  // namespace hardware
 }  // namespace android
diff --git a/broadcastradio/1.2/default/VirtualRadio.h b/broadcastradio/1.1/default/VirtualRadio.h
similarity index 91%
rename from broadcastradio/1.2/default/VirtualRadio.h
rename to broadcastradio/1.1/default/VirtualRadio.h
index 8cfaefe..176b1b2 100644
--- a/broadcastradio/1.2/default/VirtualRadio.h
+++ b/broadcastradio/1.1/default/VirtualRadio.h
@@ -13,8 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_2_VIRTUALRADIO_H
-#define ANDROID_HARDWARE_BROADCASTRADIO_V1_2_VIRTUALRADIO_H
+#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_1_VIRTUALRADIO_H
+#define ANDROID_HARDWARE_BROADCASTRADIO_V1_1_VIRTUALRADIO_H
 
 #include "VirtualProgram.h"
 
@@ -24,7 +24,7 @@
 namespace android {
 namespace hardware {
 namespace broadcastradio {
-namespace V1_2 {
+namespace V1_1 {
 namespace implementation {
 
 /**
@@ -72,9 +72,9 @@
 VirtualRadio& getDigitalRadio();
 
 }  // namespace implementation
-}  // namespace V1_2
+}  // namespace V1_1
 }  // namespace broadcastradio
 }  // namespace hardware
 }  // namespace android
 
-#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_2_VIRTUALRADIO_H
+#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_1_VIRTUALRADIO_H
diff --git a/broadcastradio/1.2/default/android.hardware.broadcastradio@1.2-service.rc b/broadcastradio/1.1/default/android.hardware.broadcastradio@1.1-service.rc
similarity index 83%
rename from broadcastradio/1.2/default/android.hardware.broadcastradio@1.2-service.rc
rename to broadcastradio/1.1/default/android.hardware.broadcastradio@1.1-service.rc
index 3741f21..7c57135 100644
--- a/broadcastradio/1.2/default/android.hardware.broadcastradio@1.2-service.rc
+++ b/broadcastradio/1.1/default/android.hardware.broadcastradio@1.1-service.rc
@@ -1,4 +1,4 @@
-service broadcastradio-hal /vendor/bin/hw/android.hardware.broadcastradio@1.2-service
+service broadcastradio-hal /vendor/bin/hw/android.hardware.broadcastradio@1.1-service
     class hal
     user audioserver
     group audio
diff --git a/broadcastradio/1.2/default/resources.h b/broadcastradio/1.1/default/resources.h
similarity index 89%
rename from broadcastradio/1.2/default/resources.h
rename to broadcastradio/1.1/default/resources.h
index b383c27..b7e709f 100644
--- a/broadcastradio/1.2/default/resources.h
+++ b/broadcastradio/1.1/default/resources.h
@@ -13,13 +13,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_2_RESOURCES_H
-#define ANDROID_HARDWARE_BROADCASTRADIO_V1_2_RESOURCES_H
+#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_1_RESOURCES_H
+#define ANDROID_HARDWARE_BROADCASTRADIO_V1_1_RESOURCES_H
 
 namespace android {
 namespace hardware {
 namespace broadcastradio {
-namespace V1_2 {
+namespace V1_1 {
 namespace implementation {
 namespace resources {
 
@@ -38,9 +38,9 @@
 
 }  // namespace resources
 }  // namespace implementation
-}  // namespace V1_2
+}  // namespace V1_1
 }  // namespace broadcastradio
 }  // namespace hardware
 }  // namespace android
 
-#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_2_RESOURCES_H
+#endif  // ANDROID_HARDWARE_BROADCASTRADIO_V1_1_RESOURCES_H
diff --git a/broadcastradio/1.2/default/service.cpp b/broadcastradio/1.1/default/service.cpp
similarity index 94%
rename from broadcastradio/1.2/default/service.cpp
rename to broadcastradio/1.1/default/service.cpp
index ea86fba..f8af0b7 100644
--- a/broadcastradio/1.2/default/service.cpp
+++ b/broadcastradio/1.1/default/service.cpp
@@ -22,7 +22,7 @@
 
 using android::hardware::configureRpcThreadpool;
 using android::hardware::joinRpcThreadpool;
-using android::hardware::broadcastradio::V1_2::implementation::BroadcastRadioFactory;
+using android::hardware::broadcastradio::V1_1::implementation::BroadcastRadioFactory;
 
 int main(int /* argc */, char** /* argv */) {
     configureRpcThreadpool(4, true);
diff --git a/broadcastradio/1.2/vts/OWNERS b/broadcastradio/1.2/vts/OWNERS
deleted file mode 100644
index 12adf57..0000000
--- a/broadcastradio/1.2/vts/OWNERS
+++ /dev/null
@@ -1,7 +0,0 @@
-# Automotive team
-egranata@google.com
-twasilczyk@google.com
-
-# VTS team
-yuexima@google.com
-yim@google.com
diff --git a/broadcastradio/1.2/vts/functional/Android.bp b/broadcastradio/1.2/vts/functional/Android.bp
deleted file mode 100644
index fd1c254..0000000
--- a/broadcastradio/1.2/vts/functional/Android.bp
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright (C) 2017 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
-
-cc_test {
-    name: "VtsHalBroadcastradioV1_2TargetTest",
-    defaults: ["VtsHalTargetTestDefaults"],
-    srcs: ["VtsHalBroadcastradioV1_2TargetTest.cpp"],
-    static_libs: [
-        "android.hardware.broadcastradio@1.0",
-        "android.hardware.broadcastradio@1.1",
-        "android.hardware.broadcastradio@1.2",
-        "android.hardware.broadcastradio@vts-utils-lib",
-        "libgmock",
-    ],
-}
diff --git a/broadcastradio/1.2/vts/functional/VtsHalBroadcastradioV1_2TargetTest.cpp b/broadcastradio/1.2/vts/functional/VtsHalBroadcastradioV1_2TargetTest.cpp
deleted file mode 100644
index 085206b..0000000
--- a/broadcastradio/1.2/vts/functional/VtsHalBroadcastradioV1_2TargetTest.cpp
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "broadcastradio.vts"
-
-#include <VtsHalHidlTargetTestBase.h>
-#include <android-base/logging.h>
-#include <android/hardware/broadcastradio/1.1/IBroadcastRadio.h>
-#include <android/hardware/broadcastradio/1.2/IBroadcastRadioFactory.h>
-#include <android/hardware/broadcastradio/1.2/ITuner.h>
-#include <android/hardware/broadcastradio/1.2/ITunerCallback.h>
-#include <android/hardware/broadcastradio/1.2/types.h>
-#include <broadcastradio-vts-utils/call-barrier.h>
-#include <broadcastradio-vts-utils/mock-timeout.h>
-#include <broadcastradio-vts-utils/pointer-utils.h>
-#include <cutils/native_handle.h>
-#include <cutils/properties.h>
-#include <gmock/gmock.h>
-#include <hidl/HidlTransportSupport.h>
-#include <utils/threads.h>
-
-#include <chrono>
-
-namespace android {
-namespace hardware {
-namespace broadcastradio {
-namespace V1_2 {
-namespace vts {
-
-using namespace std::chrono_literals;
-
-using testing::_;
-using testing::AnyNumber;
-using testing::ByMove;
-using testing::DoAll;
-using testing::Invoke;
-using testing::SaveArg;
-
-using broadcastradio::vts::CallBarrier;
-using V1_0::BandConfig;
-using V1_0::Class;
-using V1_0::MetaData;
-using V1_0::MetadataKey;
-using V1_0::MetadataType;
-using V1_1::IBroadcastRadio;
-using V1_1::ProgramInfo;
-using V1_1::ProgramListResult;
-using V1_1::ProgramSelector;
-using V1_1::Properties;
-
-using broadcastradio::vts::clearAndWait;
-
-static constexpr auto kConfigTimeout = 10s;
-static constexpr auto kConnectModuleTimeout = 1s;
-
-static void printSkipped(std::string msg) {
-    std::cout << "[  SKIPPED ] " << msg << std::endl;
-}
-
-struct TunerCallbackMock : public ITunerCallback {
-    TunerCallbackMock() { EXPECT_CALL(*this, hardwareFailure()).Times(0); }
-
-    MOCK_METHOD0(hardwareFailure, Return<void>());
-    MOCK_TIMEOUT_METHOD2(configChange, Return<void>(Result, const BandConfig&));
-    MOCK_METHOD2(tuneComplete, Return<void>(Result, const V1_0::ProgramInfo&));
-    MOCK_TIMEOUT_METHOD2(tuneComplete_1_1, Return<void>(Result, const ProgramSelector&));
-    MOCK_METHOD1(afSwitch, Return<void>(const V1_0::ProgramInfo&));
-    MOCK_METHOD1(antennaStateChange, Return<void>(bool connected));
-    MOCK_METHOD1(trafficAnnouncement, Return<void>(bool active));
-    MOCK_METHOD1(emergencyAnnouncement, Return<void>(bool active));
-    MOCK_METHOD3(newMetadata, Return<void>(uint32_t ch, uint32_t subCh, const hidl_vec<MetaData>&));
-    MOCK_METHOD1(backgroundScanAvailable, Return<void>(bool));
-    MOCK_TIMEOUT_METHOD1(backgroundScanComplete, Return<void>(ProgramListResult));
-    MOCK_METHOD0(programListChanged, Return<void>());
-    MOCK_TIMEOUT_METHOD1(currentProgramInfoChanged, Return<void>(const ProgramInfo&));
-    MOCK_METHOD1(parametersUpdated, Return<void>(const hidl_vec<VendorKeyValue>& parameters));
-};
-
-class BroadcastRadioHalTest : public ::testing::VtsHalHidlTargetTestBase,
-                              public ::testing::WithParamInterface<Class> {
-   protected:
-    virtual void SetUp() override;
-    virtual void TearDown() override;
-
-    bool openTuner();
-
-    Class radioClass;
-    bool skipped = false;
-
-    sp<IBroadcastRadio> mRadioModule;
-    sp<ITuner> mTuner;
-    sp<TunerCallbackMock> mCallback = new TunerCallbackMock();
-
-   private:
-    const BandConfig& getBand(unsigned idx);
-
-    hidl_vec<BandConfig> mBands;
-};
-
-void BroadcastRadioHalTest::SetUp() {
-    radioClass = GetParam();
-
-    // lookup HIDL service
-    auto factory = getService<IBroadcastRadioFactory>();
-    ASSERT_NE(nullptr, factory.get());
-
-    // connect radio module
-    Result connectResult;
-    CallBarrier onConnect;
-    factory->connectModule(radioClass, [&](Result ret, const sp<V1_0::IBroadcastRadio>& radio) {
-        connectResult = ret;
-        if (ret == Result::OK) mRadioModule = IBroadcastRadio::castFrom(radio);
-        onConnect.call();
-    });
-    ASSERT_TRUE(onConnect.waitForCall(kConnectModuleTimeout));
-
-    if (connectResult == Result::INVALID_ARGUMENTS) {
-        printSkipped("This device class is not supported.");
-        skipped = true;
-        return;
-    }
-    ASSERT_EQ(connectResult, Result::OK);
-    ASSERT_NE(nullptr, mRadioModule.get());
-
-    // get module properties
-    Properties prop11;
-    auto& prop10 = prop11.base;
-    auto propResult =
-        mRadioModule->getProperties_1_1([&](const Properties& properties) { prop11 = properties; });
-
-    ASSERT_TRUE(propResult.isOk());
-    EXPECT_EQ(radioClass, prop10.classId);
-    EXPECT_GT(prop10.numTuners, 0u);
-    EXPECT_GT(prop11.supportedProgramTypes.size(), 0u);
-    EXPECT_GT(prop11.supportedIdentifierTypes.size(), 0u);
-    if (radioClass == Class::AM_FM) {
-        EXPECT_GT(prop10.bands.size(), 0u);
-    }
-    mBands = prop10.bands;
-}
-
-void BroadcastRadioHalTest::TearDown() {
-    mTuner.clear();
-    mRadioModule.clear();
-    clearAndWait(mCallback, 1s);
-}
-
-bool BroadcastRadioHalTest::openTuner() {
-    EXPECT_EQ(nullptr, mTuner.get());
-
-    if (radioClass == Class::AM_FM) {
-        EXPECT_TIMEOUT_CALL(*mCallback, configChange, Result::OK, _);
-    }
-
-    Result halResult = Result::NOT_INITIALIZED;
-    auto openCb = [&](Result result, const sp<V1_0::ITuner>& tuner) {
-        halResult = result;
-        if (result != Result::OK) return;
-        mTuner = ITuner::castFrom(tuner);
-    };
-    auto hidlResult = mRadioModule->openTuner(getBand(0), true, mCallback, openCb);
-
-    EXPECT_TRUE(hidlResult.isOk());
-    EXPECT_EQ(Result::OK, halResult);
-    EXPECT_NE(nullptr, mTuner.get());
-    if (radioClass == Class::AM_FM && mTuner != nullptr) {
-        EXPECT_TIMEOUT_CALL_WAIT(*mCallback, configChange, kConfigTimeout);
-
-        BandConfig halConfig;
-        Result halResult = Result::NOT_INITIALIZED;
-        mTuner->getConfiguration([&](Result result, const BandConfig& config) {
-            halResult = result;
-            halConfig = config;
-        });
-        EXPECT_EQ(Result::OK, halResult);
-        EXPECT_TRUE(halConfig.antennaConnected);
-    }
-
-    EXPECT_NE(nullptr, mTuner.get());
-    return nullptr != mTuner.get();
-}
-
-const BandConfig& BroadcastRadioHalTest::getBand(unsigned idx) {
-    static const BandConfig dummyBandConfig = {};
-
-    if (radioClass != Class::AM_FM) {
-        ALOGD("Not AM/FM radio, returning dummy band config");
-        return dummyBandConfig;
-    }
-
-    EXPECT_GT(mBands.size(), idx);
-    if (mBands.size() <= idx) {
-        ALOGD("Band index out of bound, returning dummy band config");
-        return dummyBandConfig;
-    }
-
-    auto& band = mBands[idx];
-    ALOGD("Returning %s band", toString(band.type).c_str());
-    return band;
-}
-
-/**
- * Test IBroadcastRadio::get|setParameters() methods called with no parameters.
- *
- * Verifies that:
- *  - callback is called for empty parameters set.
- */
-TEST_P(BroadcastRadioHalTest, NoParameters) {
-    if (skipped) return;
-
-    ASSERT_TRUE(openTuner());
-
-    hidl_vec<VendorKeyValue> halResults = {};
-    bool wasCalled = false;
-    auto cb = [&](hidl_vec<VendorKeyValue> results) {
-        wasCalled = true;
-        halResults = results;
-    };
-
-    auto hidlResult = mTuner->setParameters({}, cb);
-    ASSERT_TRUE(hidlResult.isOk());
-    ASSERT_TRUE(wasCalled);
-    ASSERT_EQ(0u, halResults.size());
-
-    wasCalled = false;
-    hidlResult = mTuner->getParameters({}, cb);
-    ASSERT_TRUE(hidlResult.isOk());
-    ASSERT_TRUE(wasCalled);
-    ASSERT_EQ(0u, halResults.size());
-}
-
-/**
- * Test IBroadcastRadio::get|setParameters() methods called with unknown parameters.
- *
- * Verifies that:
- *  - unknown parameters are ignored;
- *  - callback is called also for empty results set.
- */
-TEST_P(BroadcastRadioHalTest, UnknownParameters) {
-    if (skipped) return;
-
-    ASSERT_TRUE(openTuner());
-
-    hidl_vec<VendorKeyValue> halResults = {};
-    bool wasCalled = false;
-    auto cb = [&](hidl_vec<VendorKeyValue> results) {
-        wasCalled = true;
-        halResults = results;
-    };
-
-    auto hidlResult = mTuner->setParameters({{"com.google.unknown", "dummy"}}, cb);
-    ASSERT_TRUE(hidlResult.isOk());
-    ASSERT_TRUE(wasCalled);
-    ASSERT_EQ(0u, halResults.size());
-
-    wasCalled = false;
-    hidlResult = mTuner->getParameters({{"com.google.unknown*", "dummy"}}, cb);
-    ASSERT_TRUE(hidlResult.isOk());
-    ASSERT_TRUE(wasCalled);
-    ASSERT_EQ(0u, halResults.size());
-}
-
-// TODO(b/69860743): implement VerifyIdentifiersFormat test when
-// the new program list fetching mechanism is implemented
-
-INSTANTIATE_TEST_CASE_P(BroadcastRadioHalTestCases, BroadcastRadioHalTest,
-                        ::testing::Values(Class::AM_FM, Class::SAT, Class::DT));
-
-}  // namespace vts
-}  // namespace V1_2
-}  // namespace broadcastradio
-}  // namespace hardware
-}  // namespace android
-
-int main(int argc, char** argv) {
-  ::testing::InitGoogleTest(&argc, argv);
-  int status = RUN_ALL_TESTS();
-  ALOGI("Test result = %d", status);
-  return status;
-}
diff --git a/broadcastradio/common/tests/Android.bp b/broadcastradio/common/tests/Android.bp
index f6a3b6f..3ba31db 100644
--- a/broadcastradio/common/tests/Android.bp
+++ b/broadcastradio/common/tests/Android.bp
@@ -33,7 +33,7 @@
         "android.hardware.broadcastradio@common-utils-2x-lib",
     ],
     shared_libs: [
-        "android.hardware.broadcastradio@1.2",
+        "android.hardware.broadcastradio@1.1",
         "android.hardware.broadcastradio@2.0",
     ],
 }
diff --git a/broadcastradio/common/utils1x/Android.bp b/broadcastradio/common/utils1x/Android.bp
index 127c15a..443dca1 100644
--- a/broadcastradio/common/utils1x/Android.bp
+++ b/broadcastradio/common/utils1x/Android.bp
@@ -28,6 +28,6 @@
     ],
     export_include_dirs: ["include"],
     shared_libs: [
-        "android.hardware.broadcastradio@1.2",
+        "android.hardware.broadcastradio@1.1",
     ],
 }
diff --git a/broadcastradio/common/utils1x/Utils.cpp b/broadcastradio/common/utils1x/Utils.cpp
index 7a59d6a..9c2cc3d 100644
--- a/broadcastradio/common/utils1x/Utils.cpp
+++ b/broadcastradio/common/utils1x/Utils.cpp
@@ -26,10 +26,10 @@
 namespace utils {
 
 using V1_0::Band;
+using V1_1::IdentifierType;
 using V1_1::ProgramIdentifier;
 using V1_1::ProgramSelector;
 using V1_1::ProgramType;
-using V1_2::IdentifierType;
 
 static bool isCompatibleProgramType(const uint32_t ia, const uint32_t ib) {
     auto a = static_cast<ProgramType>(ia);
@@ -86,7 +86,7 @@
 
             return haveEqualIds(a, b, IdentifierType::AMFM_FREQUENCY);
         case ProgramType::DAB:
-            return haveEqualIds(a, b, IdentifierType::DAB_SID_EXT);
+            return haveEqualIds(a, b, IdentifierType::DAB_SIDECC);
         case ProgramType::DRMO:
             return haveEqualIds(a, b, IdentifierType::DRMO_SERVICE_ID);
         case ProgramType::SXM:
@@ -126,35 +126,21 @@
 
 static bool maybeGetId(const ProgramSelector& sel, const IdentifierType type, uint64_t* val) {
     auto itype = static_cast<uint32_t>(type);
-    auto itypeAlt = itype;
-    if (type == IdentifierType::DAB_SIDECC) {
-        itypeAlt = static_cast<uint32_t>(IdentifierType::DAB_SID_EXT);
-    }
-    if (type == IdentifierType::DAB_SID_EXT) {
-        itypeAlt = static_cast<uint32_t>(IdentifierType::DAB_SIDECC);
-    }
 
-    if (sel.primaryId.type == itype || sel.primaryId.type == itypeAlt) {
+    if (sel.primaryId.type == itype) {
         if (val) *val = sel.primaryId.value;
         return true;
     }
 
     // not optimal, but we don't care in default impl
-    bool gotAlt = false;
     for (auto&& id : sel.secondaryIds) {
         if (id.type == itype) {
             if (val) *val = id.value;
             return true;
         }
-        // alternative identifier is a backup, we prefer original value
-        if (id.type == itypeAlt) {
-            if (val) *val = id.value;
-            gotAlt = true;
-            continue;
-        }
     }
 
-    return gotAlt;
+    return false;
 }
 
 bool hasId(const ProgramSelector& sel, const IdentifierType type) {
diff --git a/broadcastradio/common/utils1x/include/broadcastradio-utils-1x/Utils.h b/broadcastradio/common/utils1x/include/broadcastradio-utils-1x/Utils.h
index 5884b5a..d47746d 100644
--- a/broadcastradio/common/utils1x/include/broadcastradio-utils-1x/Utils.h
+++ b/broadcastradio/common/utils1x/include/broadcastradio-utils-1x/Utils.h
@@ -16,7 +16,7 @@
 #ifndef ANDROID_HARDWARE_BROADCASTRADIO_COMMON_UTILS_1X_H
 #define ANDROID_HARDWARE_BROADCASTRADIO_COMMON_UTILS_1X_H
 
-#include <android/hardware/broadcastradio/1.2/types.h>
+#include <android/hardware/broadcastradio/1.1/types.h>
 #include <chrono>
 #include <queue>
 #include <thread>
@@ -29,7 +29,6 @@
 enum class HalRevision : uint32_t {
     V1_0 = 1,
     V1_1,
-    V1_2,
 };
 
 /**
@@ -50,21 +49,21 @@
 bool isAm(const V1_0::Band band);
 bool isFm(const V1_0::Band band);
 
-bool hasId(const V1_1::ProgramSelector& sel, const V1_2::IdentifierType type);
+bool hasId(const V1_1::ProgramSelector& sel, const V1_1::IdentifierType type);
 
 /**
  * Returns ID (either primary or secondary) for a given program selector.
  *
  * If the selector does not contain given type, returns 0 and emits a warning.
  */
-uint64_t getId(const V1_1::ProgramSelector& sel, const V1_2::IdentifierType type);
+uint64_t getId(const V1_1::ProgramSelector& sel, const V1_1::IdentifierType type);
 
 /**
  * Returns ID (either primary or secondary) for a given program selector.
  *
  * If the selector does not contain given type, returns default value.
  */
-uint64_t getId(const V1_1::ProgramSelector& sel, const V1_2::IdentifierType type, uint64_t defval);
+uint64_t getId(const V1_1::ProgramSelector& sel, const V1_1::IdentifierType type, uint64_t defval);
 
 V1_1::ProgramSelector make_selector(V1_0::Band band, uint32_t channel, uint32_t subChannel = 0);
 
diff --git a/cas/1.0/vts/functional/VtsHalCasV1_0TargetTest.cpp b/cas/1.0/vts/functional/VtsHalCasV1_0TargetTest.cpp
index 193253a..053d37a 100644
--- a/cas/1.0/vts/functional/VtsHalCasV1_0TargetTest.cpp
+++ b/cas/1.0/vts/functional/VtsHalCasV1_0TargetTest.cpp
@@ -17,6 +17,7 @@
 #define LOG_TAG "mediacas_hidl_hal_test"
 
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 #include <android-base/logging.h>
 #include <android/hardware/cas/1.0/ICas.h>
 #include <android/hardware/cas/1.0/ICasListener.h>
@@ -206,10 +207,23 @@
     EXPECT_TRUE(mEventData == eventData);
 }
 
+// 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>();
+        mService = ::testing::VtsHalHidlTargetTestBase::getService<IMediaCasService>(
+            CasHidlEnvironment::Instance()->getServiceName<IMediaCasService>());
         ASSERT_NE(mService, nullptr);
     }
 
@@ -843,7 +857,9 @@
 }  // 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;
diff --git a/configstore/1.0/vts/functional/VtsHalConfigstoreV1_0TargetTest.cpp b/configstore/1.0/vts/functional/VtsHalConfigstoreV1_0TargetTest.cpp
index e501580..a1676be 100644
--- a/configstore/1.0/vts/functional/VtsHalConfigstoreV1_0TargetTest.cpp
+++ b/configstore/1.0/vts/functional/VtsHalConfigstoreV1_0TargetTest.cpp
@@ -17,6 +17,7 @@
 #define LOG_TAG "ConfigstoreHidlHalTest"
 
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 #include <android-base/logging.h>
 #include <android/hardware/configstore/1.0/ISurfaceFlingerConfigs.h>
 #include <android/hardware/configstore/1.0/types.h>
@@ -34,13 +35,25 @@
 #define ASSERT_OK(ret) ASSERT_TRUE(ret.isOk())
 #define EXPECT_OK(ret) EXPECT_TRUE(ret.isOk())
 
+// Test environment for Configstore HIDL HAL.
+class ConfigstoreHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static ConfigstoreHidlEnvironment* Instance() {
+        static ConfigstoreHidlEnvironment* instance = new ConfigstoreHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<ISurfaceFlingerConfigs>(); }
+};
+
 class ConfigstoreHidlTest : public ::testing::VtsHalHidlTargetTestBase {
    public:
     sp<ISurfaceFlingerConfigs> sfConfigs;
 
     virtual void SetUp() override {
-        sfConfigs = ::testing::VtsHalHidlTargetTestBase::getService<
-            ISurfaceFlingerConfigs>();
+        sfConfigs = ::testing::VtsHalHidlTargetTestBase::getService<ISurfaceFlingerConfigs>(
+            ConfigstoreHidlEnvironment::Instance()->getServiceName<ISurfaceFlingerConfigs>());
         ASSERT_NE(sfConfigs, nullptr);
     }
 
@@ -119,7 +132,9 @@
 }
 
 int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(ConfigstoreHidlEnvironment::Instance());
     ::testing::InitGoogleTest(&argc, argv);
+    ConfigstoreHidlEnvironment::Instance()->init(&argc, argv);
     int status = RUN_ALL_TESTS();
     LOG(INFO) << "Test result = " << status;
     return status;
diff --git a/dumpstate/1.0/vts/functional/VtsHalDumpstateV1_0TargetTest.cpp b/dumpstate/1.0/vts/functional/VtsHalDumpstateV1_0TargetTest.cpp
index 9e866e7..57ebf2a 100644
--- a/dumpstate/1.0/vts/functional/VtsHalDumpstateV1_0TargetTest.cpp
+++ b/dumpstate/1.0/vts/functional/VtsHalDumpstateV1_0TargetTest.cpp
@@ -24,15 +24,29 @@
 #include <log/log.h>
 
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 
 using ::android::hardware::dumpstate::V1_0::IDumpstateDevice;
 using ::android::hardware::Return;
 using ::android::sp;
 
+// Test environment for Dumpstate HIDL HAL.
+class DumpstateHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static DumpstateHidlEnvironment* Instance() {
+        static DumpstateHidlEnvironment* instance = new DumpstateHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IDumpstateDevice>(); }
+};
+
 class DumpstateHidlTest : public ::testing::VtsHalHidlTargetTestBase {
    public:
     virtual void SetUp() override {
-        dumpstate = ::testing::VtsHalHidlTargetTestBase::getService<IDumpstateDevice>();
+        dumpstate = ::testing::VtsHalHidlTargetTestBase::getService<IDumpstateDevice>(
+            DumpstateHidlEnvironment::Instance()->getServiceName<IDumpstateDevice>());
         ASSERT_NE(dumpstate, nullptr) << "Could not get HIDL instance";
     }
 
@@ -98,7 +112,9 @@
 }
 
 int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(DumpstateHidlEnvironment::Instance());
     ::testing::InitGoogleTest(&argc, argv);
+    DumpstateHidlEnvironment::Instance()->init(&argc, argv);
     int status = RUN_ALL_TESTS();
     ALOGI("Test result = %d", status);
     return status;
diff --git a/gatekeeper/1.0/vts/functional/VtsHalGatekeeperV1_0TargetTest.cpp b/gatekeeper/1.0/vts/functional/VtsHalGatekeeperV1_0TargetTest.cpp
index e9a44eb..715e9fc 100644
--- a/gatekeeper/1.0/vts/functional/VtsHalGatekeeperV1_0TargetTest.cpp
+++ b/gatekeeper/1.0/vts/functional/VtsHalGatekeeperV1_0TargetTest.cpp
@@ -33,6 +33,7 @@
 #include <log/log.h>
 
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 
 using ::android::hardware::hidl_string;
 using ::android::hardware::hidl_vec;
@@ -77,6 +78,20 @@
   return auth_token;
 }
 
+// Test environment for Gatekeeper HIDL HAL.
+class GatekeeperHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+ public:
+  // get the test environment singleton
+  static GatekeeperHidlEnvironment* Instance() {
+    static GatekeeperHidlEnvironment* instance = new GatekeeperHidlEnvironment;
+    return instance;
+  }
+
+  virtual void registerTestServices() override { registerTestService<IGatekeeper>(); }
+ private:
+  GatekeeperHidlEnvironment() {}
+};
+
 // The main test class for Gatekeeper HIDL HAL.
 class GatekeeperHidlTest : public ::testing::VtsHalHidlTargetTestBase {
  protected:
@@ -189,7 +204,8 @@
   GatekeeperHidlTest() : uid_(0) {}
   virtual void SetUp() override {
     GatekeeperResponse rsp;
-    gatekeeper_ = ::testing::VtsHalHidlTargetTestBase::getService<IGatekeeper>();
+    gatekeeper_ = ::testing::VtsHalHidlTargetTestBase::getService<IGatekeeper>(
+        GatekeeperHidlEnvironment::Instance()->getServiceName<IGatekeeper>());
     ASSERT_NE(nullptr, gatekeeper_.get());
     doDeleteAllUsers(rsp);
   }
@@ -433,7 +449,9 @@
 }
 
 int main(int argc, char **argv) {
+  ::testing::AddGlobalTestEnvironment(GatekeeperHidlEnvironment::Instance());
   ::testing::InitGoogleTest(&argc, argv);
+  GatekeeperHidlEnvironment::Instance()->init(&argc, argv);
   int status = RUN_ALL_TESTS();
   ALOGI("Test result = %d", status);
   return status;
diff --git a/gnss/1.1/vts/functional/gnss_hal_test_cases.cpp b/gnss/1.1/vts/functional/gnss_hal_test_cases.cpp
index 0b27922..264a11d 100644
--- a/gnss/1.1/vts/functional/gnss_hal_test_cases.cpp
+++ b/gnss/1.1/vts/functional/gnss_hal_test_cases.cpp
@@ -429,23 +429,26 @@
             EXPECT_GE(data.position.bearingDegrees, -360);
             EXPECT_LE(data.position.bearingDegrees, 360);
 
-            EXPECT_GE(data.position.horizontalAccuracyMeters, 0);
+            EXPECT_GT(data.position.horizontalAccuracyMeters, 0);
             EXPECT_LE(data.position.horizontalAccuracyMeters, 20000000);
 
-            EXPECT_GE(data.position.verticalAccuracyMeters, 0);
+            EXPECT_GT(data.position.verticalAccuracyMeters, 0);
             EXPECT_LE(data.position.verticalAccuracyMeters, 20000);
 
-            EXPECT_GE(data.position.speedAccuracyMetersPerSecond, 0);
+            EXPECT_GT(data.position.speedAccuracyMetersPerSecond, 0);
             EXPECT_LE(data.position.speedAccuracyMetersPerSecond, 500);
 
-            EXPECT_GE(data.position.bearingAccuracyDegrees, 0);
+            EXPECT_GT(data.position.bearingAccuracyDegrees, 0);
             EXPECT_LE(data.position.bearingAccuracyDegrees, 180);
 
             EXPECT_GE(data.position.ageSeconds, 0);
         }
 
         EXPECT_GE(data.time.timeEstimate, 1514764800000);  // Jan 01 2018 00:00:00
+
         EXPECT_GT(data.time.timeUncertaintyNs, 0);
+
         EXPECT_GT(data.time.frequencyUncertaintyNsPerSec, 0);
+        EXPECT_LE(data.time.frequencyUncertaintyNsPerSec, 2.0e5);  // 200 ppm
     }
 }
diff --git a/ir/1.0/vts/functional/VtsHalIrV1_0TargetTest.cpp b/ir/1.0/vts/functional/VtsHalIrV1_0TargetTest.cpp
index a017404..5fd2dd4 100644
--- a/ir/1.0/vts/functional/VtsHalIrV1_0TargetTest.cpp
+++ b/ir/1.0/vts/functional/VtsHalIrV1_0TargetTest.cpp
@@ -22,6 +22,7 @@
 #include <android/hardware/ir/1.0/types.h>
 
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 #include <algorithm>
 
 using ::android::hardware::ir::V1_0::IConsumerIr;
@@ -30,11 +31,26 @@
 using ::android::hardware::Return;
 using ::android::sp;
 
+// Test environment for Ir
+class ConsumerIrHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+ public:
+  // get the test environment singleton
+  static ConsumerIrHidlEnvironment* Instance() {
+    static ConsumerIrHidlEnvironment* instance = new ConsumerIrHidlEnvironment;
+    return instance;
+  }
+
+  virtual void registerTestServices() override { registerTestService<IConsumerIr>(); }
+ private:
+  ConsumerIrHidlEnvironment() {}
+};
+
 // The main test class for IR HIDL HAL.
 class ConsumerIrHidlTest : public ::testing::VtsHalHidlTargetTestBase {
  public:
   virtual void SetUp() override {
-    ir = ::testing::VtsHalHidlTargetTestBase::getService<IConsumerIr>();
+    ir = ::testing::VtsHalHidlTargetTestBase::getService<IConsumerIr>(
+      ConsumerIrHidlEnvironment::Instance()->getServiceName<IConsumerIr>());
     ASSERT_NE(ir, nullptr);
   }
 
@@ -77,7 +93,9 @@
 }
 
 int main(int argc, char **argv) {
+  ::testing::AddGlobalTestEnvironment(ConsumerIrHidlEnvironment::Instance());
   ::testing::InitGoogleTest(&argc, argv);
+  ConsumerIrHidlEnvironment::Instance()->init(&argc, argv);
   int status = RUN_ALL_TESTS();
   LOG(INFO) << "Test result = " << status;
   return status;
diff --git a/keymaster/3.0/vts/functional/keymaster_hidl_hal_test.cpp b/keymaster/3.0/vts/functional/keymaster_hidl_hal_test.cpp
index 6abd9bf..3a181a9 100644
--- a/keymaster/3.0/vts/functional/keymaster_hidl_hal_test.cpp
+++ b/keymaster/3.0/vts/functional/keymaster_hidl_hal_test.cpp
@@ -33,19 +33,14 @@
 #include "key_param_output.h"
 
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 
 #include "attestation_record.h"
 #include "openssl_utils.h"
 
 using ::android::sp;
-
 using ::std::string;
 
-// This service_name will be passed to getService when retrieving the keymaster service to test.  To
-// change it from "default" specify the selected service name on the command line.  The first
-// non-gtest argument will be used as the service name.
-string service_name = "default";
-
 static bool arm_deleteAllKeys = false;
 static bool dump_Attestations = false;
 
@@ -417,6 +412,20 @@
 
 }  // namespace
 
+// Test environment for Keymaster HIDL HAL.
+class KeymasterHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static KeymasterHidlEnvironment* Instance() {
+        static KeymasterHidlEnvironment* instance = new KeymasterHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IKeymasterDevice>(); }
+   private:
+    KeymasterHidlEnvironment() {}
+};
+
 class KeymasterHidlTest : public ::testing::VtsHalHidlTargetTestBase {
   public:
     void TearDown() override {
@@ -428,7 +437,8 @@
 
     // SetUpTestCase runs only once per test case, not once per test.
     static void SetUpTestCase() {
-        keymaster_ = IKeymasterDevice::getService(service_name);
+        keymaster_ = ::testing::VtsHalHidlTargetTestBase::getService<IKeymasterDevice>(
+            KeymasterHidlEnvironment::Instance()->getServiceName<IKeymasterDevice>());
         ASSERT_NE(keymaster_, nullptr);
 
         ASSERT_TRUE(
@@ -4203,8 +4213,10 @@
 }  // namespace android
 
 int main(int argc, char** argv) {
+    using android::hardware::keymaster::V3_0::test::KeymasterHidlEnvironment;
+    ::testing::AddGlobalTestEnvironment(KeymasterHidlEnvironment::Instance());
     ::testing::InitGoogleTest(&argc, argv);
-    std::vector<std::string> positional_args;
+    KeymasterHidlEnvironment::Instance()->init(&argc, argv);
     for (int i = 1; i < argc; ++i) {
         if (argv[i][0] == '-') {
             if (std::string(argv[i]) == "--arm_deleteAllKeys") {
@@ -4213,14 +4225,8 @@
             if (std::string(argv[i]) == "--dump_attestations") {
                 dump_Attestations = true;
             }
-        } else {
-            positional_args.push_back(argv[i]);
         }
     }
-    if (positional_args.size()) {
-        ALOGI("Running keymaster VTS against service \"%s\"", positional_args[0].c_str());
-        service_name = positional_args[0];
-    }
     int status = RUN_ALL_TESTS();
     ALOGI("Test result = %d", status);
     return status;
diff --git a/oemlock/1.0/vts/functional/VtsHalOemLockV1_0TargetTest.cpp b/oemlock/1.0/vts/functional/VtsHalOemLockV1_0TargetTest.cpp
index a924fec..05462a8 100644
--- a/oemlock/1.0/vts/functional/VtsHalOemLockV1_0TargetTest.cpp
+++ b/oemlock/1.0/vts/functional/VtsHalOemLockV1_0TargetTest.cpp
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 #include <android/hardware/oemlock/1.0/IOemLock.h>
 
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 
 using ::android::hardware::oemlock::V1_0::IOemLock;
 using ::android::hardware::oemlock::V1_0::OemLockStatus;
@@ -25,9 +25,22 @@
 using ::android::hardware::hidl_vec;
 using ::android::sp;
 
+// Test environment for OemLock HIDL HAL.
+class OemLockHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static OemLockHidlEnvironment* Instance() {
+        static OemLockHidlEnvironment* instance = new OemLockHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IOemLock>(); }
+};
+
 struct OemLockHidlTest : public ::testing::VtsHalHidlTargetTestBase {
     virtual void SetUp() override {
-        oemlock = ::testing::VtsHalHidlTargetTestBase::getService<IOemLock>();
+        oemlock = ::testing::VtsHalHidlTargetTestBase::getService<IOemLock>(
+            OemLockHidlEnvironment::Instance()->getServiceName<IOemLock>());
         ASSERT_NE(oemlock, nullptr);
     }
 
@@ -187,3 +200,12 @@
     ASSERT_EQ(status, OemLockStatus::OK);
     ASSERT_EQ(allowed, originallyAllowed);
 };
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(OemLockHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    OemLockHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    ALOGI("Test result = %d", status);
+    return status;
+}
diff --git a/usb/1.0/vts/functional/VtsHalUsbV1_0TargetTest.cpp b/usb/1.0/vts/functional/VtsHalUsbV1_0TargetTest.cpp
index e01b974..ee7ef1b 100644
--- a/usb/1.0/vts/functional/VtsHalUsbV1_0TargetTest.cpp
+++ b/usb/1.0/vts/functional/VtsHalUsbV1_0TargetTest.cpp
@@ -22,6 +22,7 @@
 #include <android/hardware/usb/1.0/types.h>
 
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 #include <log/log.h>
 #include <stdlib.h>
 #include <chrono>
@@ -48,6 +49,18 @@
 using ::android::hardware::Void;
 using ::android::sp;
 
+// Test environment for Usb HIDL HAL.
+class UsbHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+ public:
+  // get the test environment singleton
+  static UsbHidlEnvironment* Instance() {
+    static UsbHidlEnvironment* instance = new UsbHidlEnvironment;
+    return instance;
+  }
+
+  virtual void registerTestServices() override { registerTestService<IUsb>(); }
+};
+
 // The main test class for the USB hidl HAL
 class UsbHidlTest : public ::testing::VtsHalHidlTargetTestBase {
  public:
@@ -96,7 +109,8 @@
 
   virtual void SetUp() override {
     ALOGI("Setup");
-    usb = ::testing::VtsHalHidlTargetTestBase::getService<IUsb>();
+    usb = ::testing::VtsHalHidlTargetTestBase::getService<IUsb>(
+        UsbHidlEnvironment::Instance()->getServiceName<IUsb>());
     ASSERT_NE(usb, nullptr);
 
     usb_cb_2 = new UsbCallback(*this, 2);
@@ -343,7 +357,9 @@
 }
 
 int main(int argc, char** argv) {
+  ::testing::AddGlobalTestEnvironment(UsbHidlEnvironment::Instance());
   ::testing::InitGoogleTest(&argc, argv);
+  UsbHidlEnvironment::Instance()->init(&argc, argv);
   int status = RUN_ALL_TESTS();
   ALOGI("Test result = %d", status);
   return status;
diff --git a/usb/1.1/vts/functional/VtsHalUsbV1_1TargetTest.cpp b/usb/1.1/vts/functional/VtsHalUsbV1_1TargetTest.cpp
index 8a30993..c990b23 100644
--- a/usb/1.1/vts/functional/VtsHalUsbV1_1TargetTest.cpp
+++ b/usb/1.1/vts/functional/VtsHalUsbV1_1TargetTest.cpp
@@ -24,6 +24,7 @@
 
 #include <VtsHalHidlTargetCallbackBase.h>
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 #include <log/log.h>
 #include <stdlib.h>
 #include <chrono>
@@ -113,12 +114,25 @@
     };
 };
 
+// Test environment for Usb HIDL HAL.
+class UsbHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static UsbHidlEnvironment* Instance() {
+        static UsbHidlEnvironment* instance = new UsbHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IUsb>(); }
+};
+
 // The main test class for the USB hidl HAL
 class UsbHidlTest : public ::testing::VtsHalHidlTargetTestBase {
    public:
     virtual void SetUp() override {
         ALOGI(__FUNCTION__);
-        usb = ::testing::VtsHalHidlTargetTestBase::getService<IUsb>();
+        usb = ::testing::VtsHalHidlTargetTestBase::getService<IUsb>(
+            UsbHidlEnvironment::Instance()->getServiceName<IUsb>());
         ASSERT_NE(usb, nullptr);
 
         usb_cb_2 = new UsbCallback(2);
@@ -169,7 +183,9 @@
 }
 
 int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(UsbHidlEnvironment::Instance());
     ::testing::InitGoogleTest(&argc, argv);
+    UsbHidlEnvironment::Instance()->init(&argc, argv);
     int status = RUN_ALL_TESTS();
     ALOGI("Test result = %d", status);
     return status;
diff --git a/vr/1.0/vts/functional/VtsHalVrV1_0TargetTest.cpp b/vr/1.0/vts/functional/VtsHalVrV1_0TargetTest.cpp
index 23f4c71..b165613 100644
--- a/vr/1.0/vts/functional/VtsHalVrV1_0TargetTest.cpp
+++ b/vr/1.0/vts/functional/VtsHalVrV1_0TargetTest.cpp
@@ -16,6 +16,7 @@
 
 #define LOG_TAG "vr_hidl_hal_test"
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 #include <android-base/logging.h>
 #include <android/hardware/vr/1.0/IVr.h>
 #include <hardware/vr.h>
@@ -26,11 +27,24 @@
 using ::android::hardware::Void;
 using ::android::sp;
 
+// Test environment for Vr HIDL HAL.
+class VrHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+ public:
+  // get the test environment singleton
+  static VrHidlEnvironment* Instance() {
+    static VrHidlEnvironment* instance = new VrHidlEnvironment;
+    return instance;
+  }
+
+  virtual void registerTestServices() override { registerTestService<IVr>(); }
+};
+
 // The main test class for VR HIDL HAL.
 class VrHidlTest : public ::testing::VtsHalHidlTargetTestBase {
  public:
   void SetUp() override {
-    vr = ::testing::VtsHalHidlTargetTestBase::getService<IVr>();
+    vr = ::testing::VtsHalHidlTargetTestBase::getService<IVr>(
+        VrHidlEnvironment::Instance()->getServiceName<IVr>());
     ASSERT_NE(vr, nullptr);
   }
 
@@ -39,16 +53,6 @@
   sp<IVr> vr;
 };
 
-
-// A class for test environment setup (kept since this file is a template).
-class VrHidlEnvironment : public ::testing::Environment {
- public:
-  void SetUp() {}
-  void TearDown() {}
-
- private:
-};
-
 // Sanity check that Vr::init does not crash.
 TEST_F(VrHidlTest, Init) {
   EXPECT_TRUE(vr->init().isOk());
@@ -72,8 +76,9 @@
 }
 
 int main(int argc, char **argv) {
-  ::testing::AddGlobalTestEnvironment(new VrHidlEnvironment);
+  ::testing::AddGlobalTestEnvironment(VrHidlEnvironment::Instance());
   ::testing::InitGoogleTest(&argc, argv);
+  VrHidlEnvironment::Instance()->init(&argc, argv);
   int status = RUN_ALL_TESTS();
   ALOGI("Test result = %d", status);
   return status;
diff --git a/weaver/1.0/vts/functional/VtsHalWeaverV1_0TargetTest.cpp b/weaver/1.0/vts/functional/VtsHalWeaverV1_0TargetTest.cpp
index 372d787..de2a1de 100644
--- a/weaver/1.0/vts/functional/VtsHalWeaverV1_0TargetTest.cpp
+++ b/weaver/1.0/vts/functional/VtsHalWeaverV1_0TargetTest.cpp
@@ -19,6 +19,7 @@
 #include <limits>
 
 #include <VtsHalHidlTargetTestBase.h>
+#include <VtsHalHidlTargetTestEnvBase.h>
 
 using ::android::hardware::weaver::V1_0::IWeaver;
 using ::android::hardware::weaver::V1_0::WeaverConfig;
@@ -33,9 +34,22 @@
 const std::vector<uint8_t> VALUE{16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1};
 const std::vector<uint8_t> OTHER_VALUE{0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 255, 255};
 
+// Test environment for Weaver HIDL HAL.
+class WeaverHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static WeaverHidlEnvironment* Instance() {
+        static WeaverHidlEnvironment* instance = new WeaverHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IWeaver>(); }
+};
+
 struct WeaverHidlTest : public ::testing::VtsHalHidlTargetTestBase {
     virtual void SetUp() override {
-        weaver = ::testing::VtsHalHidlTargetTestBase::getService<IWeaver>();
+        weaver = ::testing::VtsHalHidlTargetTestBase::getService<IWeaver>(
+            WeaverHidlEnvironment::Instance()->getServiceName<IWeaver>());
         ASSERT_NE(weaver, nullptr);
     }
 
@@ -334,3 +348,12 @@
     EXPECT_TRUE(readValue.empty());
     EXPECT_EQ(timeout, 0u);
 }
+
+int main(int argc, char** argv) {
+    ::testing::AddGlobalTestEnvironment(WeaverHidlEnvironment::Instance());
+    ::testing::InitGoogleTest(&argc, argv);
+    WeaverHidlEnvironment::Instance()->init(&argc, argv);
+    int status = RUN_ALL_TESTS();
+    ALOGI("Test result = %d", status);
+    return status;
+}
diff --git a/wifi/1.2/default/hidl_struct_util.cpp b/wifi/1.2/default/hidl_struct_util.cpp
index 2e3e0ab..33450ab 100644
--- a/wifi/1.2/default/hidl_struct_util.cpp
+++ b/wifi/1.2/default/hidl_struct_util.cpp
@@ -26,6 +26,9 @@
 namespace implementation {
 namespace hidl_struct_util {
 
+WifiChannelWidthInMhz convertLegacyWifiChannelWidthToHidl(
+    legacy_hal::wifi_channel_width type);
+
 hidl_string safeConvertChar(const char* str, size_t max_len) {
     const char* c = str;
     size_t size = 0;
@@ -2044,7 +2047,8 @@
     *hidl_struct = {};
 
     hidl_struct->channelFreq = legacy_struct.channel;
-    hidl_struct->channelBandwidth = legacy_struct.bandwidth;
+    hidl_struct->channelBandwidth = convertLegacyWifiChannelWidthToHidl(
+        (legacy_hal::wifi_channel_width)legacy_struct.bandwidth);
     hidl_struct->numSpatialStreams = legacy_struct.nss;
 
     return true;
diff --git a/wifi/1.2/types.hal b/wifi/1.2/types.hal
index 1636ae8..b962963 100644
--- a/wifi/1.2/types.hal
+++ b/wifi/1.2/types.hal
@@ -19,6 +19,7 @@
 import @1.0::MacAddress;
 import @1.0::NanDataPathConfirmInd;
 import @1.0::WifiChannelInMhz;
+import @1.0::WifiChannelWidthInMhz;
 
 /**
  * NAN configuration request parameters added in the 1.2 HAL. These are supplemental to previous
@@ -67,7 +68,7 @@
     /**
      * Channel bandwidth in MHz.
      */
-    uint32_t channelBandwidth;
+    WifiChannelWidthInMhz channelBandwidth;
     /**
      * Number of spatial streams used in the channel.
      */