have hal2.1 register as the fingerprint service

Test: fingerprint's should be add-able.
Bug: 33199080
Change-Id: I30dd26c484848163ad63ee9bbd45f1d1ae869a14
diff --git a/biometrics/fingerprint/2.1/default/service.cpp b/biometrics/fingerprint/2.1/default/service.cpp
index 9867039..0563acb 100644
--- a/biometrics/fingerprint/2.1/default/service.cpp
+++ b/biometrics/fingerprint/2.1/default/service.cpp
@@ -16,13 +16,31 @@
 
 #define LOG_TAG "android.hardware.biometrics.fingerprint@2.1-service"
 
+#include <android/log.h>
+#include <hidl/HidlSupport.h>
+#include <hidl/HidlTransportSupport.h>
 #include <android/hardware/biometrics/fingerprint/2.1/IBiometricsFingerprint.h>
-
-#include <hidl/LegacySupport.h>
+#include <android/hardware/biometrics/fingerprint/2.1/types.h>
+#include "BiometricsFingerprint.h"
 
 using android::hardware::biometrics::fingerprint::V2_1::IBiometricsFingerprint;
-using android::hardware::defaultPassthroughServiceImplementation;
+using android::hardware::biometrics::fingerprint::V2_1::implementation::BiometricsFingerprint;
+using android::hardware::configureRpcThreadpool;
+using android::hardware::joinRpcThreadpool;
+using android::sp;
 
 int main() {
-    return defaultPassthroughServiceImplementation<IBiometricsFingerprint>("fingerprint");
+    android::sp<IBiometricsFingerprint> bio = BiometricsFingerprint::getInstance();
+
+    configureRpcThreadpool(1, true /*callerWillJoin*/);
+
+    if (bio != nullptr) {
+        bio->registerAsService("fingerprint_hal");
+    } else {
+        ALOGE("Can't create instance of BiometricsFingerprint, nullptr");
+    }
+
+    joinRpcThreadpool();
+
+    return 0; // should never get here
 }