samsung: hidl: Add fingerprint 2.1 HAL

Change-Id: Ibd1b7fe7e1847ec28b2450fbf44cc740e5f364ef
diff --git a/hidl/fingerprint/service.cpp b/hidl/fingerprint/service.cpp
new file mode 100644
index 0000000..09d5111
--- /dev/null
+++ b/hidl/fingerprint/service.cpp
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2019 The LineageOS 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 "android.hardware.biometrics.fingerprint@2.1-service.samsung"
+
+#include <android-base/logging.h>
+#include <hidl/HidlTransportSupport.h>
+#include <utils/Errors.h>
+
+#include "BiometricsFingerprint.h"
+
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+
+using android::hardware::biometrics::fingerprint::V2_1::IBiometricsFingerprint;
+using android::hardware::biometrics::fingerprint::V2_1::implementation::BiometricsFingerprint;
+
+using android::OK;
+using android::sp;
+
+int main() {
+    android::sp<IBiometricsFingerprint> bio = BiometricsFingerprint::getInstance();
+
+    configureRpcThreadpool(1, true);
+
+    if (bio == nullptr || bio->registerAsService() != OK) {
+        LOG(ERROR) << "Could not register service for Fingerprint HAL";
+        goto shutdown;
+    }
+
+    LOG(INFO) << "Fingerprint HAL service is Ready.";
+    joinRpcThreadpool();
+
+shutdown:
+    // In normal operation, we don't expect the thread pool to shutdown
+    LOG(ERROR) << "Fingerprint HAL failed to join thread pool.";
+    return 1;
+}