diff --git a/gnss/aidl/default/GnssVisibilityControl.cpp b/gnss/aidl/default/GnssVisibilityControl.cpp
new file mode 100644
index 0000000..208d73c
--- /dev/null
+++ b/gnss/aidl/default/GnssVisibilityControl.cpp
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2021 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 "GnssVisibilityControl"
+
+#include "GnssVisibilityControl.h"
+#include <log/log.h>
+
+namespace aidl::android::hardware::gnss::visibility_control {
+
+std::shared_ptr<IGnssVisibilityControlCallback> GnssVisibilityControl::sCallback = nullptr;
+
+ndk::ScopedAStatus GnssVisibilityControl::enableNfwLocationAccess(
+        const std::vector<std::string>& proxyApps) {
+    std::string os;
+    bool first = true;
+    for (const auto& proxyApp : proxyApps) {
+        if (first) {
+            first = false;
+        } else {
+            os += " ";
+        }
+        os += proxyApp;
+    }
+
+    ALOGD("GnssVisibilityControl::enableNfwLocationAccess proxyApps: %s", os.c_str());
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus GnssVisibilityControl::setCallback(
+        const std::shared_ptr<IGnssVisibilityControlCallback>& callback) {
+    ALOGD("GnssVisibilityControl::setCallback");
+    std::unique_lock<std::mutex> lock(mMutex);
+    sCallback = callback;
+    return ndk::ScopedAStatus::ok();
+}
+
+}  // namespace aidl::android::hardware::gnss::visibility_control