healthd: add android.hardware.health@2.0-impl-default.recovery

Test: build recovery
Bug: 80132328
Change-Id: I253bd1a756f3b94f6470da12bfc4488313a16aa4
diff --git a/health/2.0/default/HealthImplDefault.cpp b/health/2.0/default/HealthImplDefault.cpp
new file mode 100644
index 0000000..15346bf
--- /dev/null
+++ b/health/2.0/default/HealthImplDefault.cpp
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2018 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 <health2/Health.h>
+#include <healthd/healthd.h>
+
+using android::hardware::health::V2_0::IHealth;
+using android::hardware::health::V2_0::implementation::Health;
+
+static struct healthd_config gHealthdConfig = {
+    .batteryStatusPath = android::String8(android::String8::kEmptyString),
+    .batteryHealthPath = android::String8(android::String8::kEmptyString),
+    .batteryPresentPath = android::String8(android::String8::kEmptyString),
+    .batteryCapacityPath = android::String8(android::String8::kEmptyString),
+    .batteryVoltagePath = android::String8(android::String8::kEmptyString),
+    .batteryTemperaturePath = android::String8(android::String8::kEmptyString),
+    .batteryTechnologyPath = android::String8(android::String8::kEmptyString),
+    .batteryCurrentNowPath = android::String8(android::String8::kEmptyString),
+    .batteryCurrentAvgPath = android::String8(android::String8::kEmptyString),
+    .batteryChargeCounterPath = android::String8(android::String8::kEmptyString),
+    .batteryFullChargePath = android::String8(android::String8::kEmptyString),
+    .batteryCycleCountPath = android::String8(android::String8::kEmptyString),
+    .energyCounter = nullptr,
+    .boot_min_cap = 0,
+    .screen_on = nullptr};
+
+void healthd_board_init(struct healthd_config*) {
+    // use defaults
+}
+
+int healthd_board_battery_update(struct android::BatteryProperties*) {
+    // return 0 to log periodic polled battery status to kernel log
+    return 0;
+}
+
+extern "C" IHealth* HIDL_FETCH_IHealth(const char* name) {
+    const static std::string providedInstance{"backup"};
+
+    if (providedInstance == name) {
+        // use defaults
+        // Health class stores static instance
+        return Health::initInstance(&gHealthdConfig).get();
+    }
+    return nullptr;
+}