Tuner service and getFrontendIds

Test: mmm; cuttlefish with tuner sample input
Change-Id: I0397c79ccf331950401e2a438f4acc48a41cc3dd
diff --git a/services/tuner/main_tunerservice.cpp b/services/tuner/main_tunerservice.cpp
new file mode 100644
index 0000000..a0e7a9f
--- /dev/null
+++ b/services/tuner/main_tunerservice.cpp
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+#include <utils/Log.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+#include <binder/ProcessState.h>
+#include <hidl/HidlTransportSupport.h>
+
+#include "TunerService.h"
+
+using namespace android;
+
+int main(int argc __unused, char** argv) {
+    ALOGD("Tuner service starting");
+
+    strcpy(argv[0], "media.tuner");
+    sp<ProcessState> proc(ProcessState::self());
+    sp<IServiceManager> sm = defaultServiceManager();
+    ALOGD("ServiceManager: %p", sm.get());
+
+    TunerService::instantiate();
+
+    ProcessState::self()->startThreadPool();
+    IPCThreadState::self()->joinThreadPool();
+}