1 files changed, 108 insertions, 0 deletions
diff --git a/healthd/HealthService.cpp b/healthd/HealthService.cpp
new file mode 100644
index 000000000..e8a1a85e2
--- /dev/null
+++ b/healthd/HealthService.cpp
@@ -0,0 +1,108 @@
+/*
+ * Copyright 2017 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.
+ */
+
+// This is a reference implementation for health@2.0 HAL. A vendor
+// can write its own HealthService.cpp with customized init and update functions.
+
+#define LOG_TAG "health@2.0/" HEALTH_INSTANCE_NAME
+#include <android-base/logging.h>
+
+#include <android/hardware/health/1.0/types.h>
+#include <hal_conversion.h>
+#include <health2/Health.h>
+#include <healthd/healthd.h>
+#include <hidl/HidlTransportSupport.h>
+
+using android::hardware::IPCThreadState;
+using android::hardware::configureRpcThreadpool;
+using android::hardware::health::V1_0::HealthInfo;
+using android::hardware::health::V1_0::hal_conversion::convertToHealthInfo;
+using android::hardware::health::V2_0::IHealth;
+using android::hardware::health::V2_0::implementation::Health;
+
+// see healthd_common.cpp
+android::sp<IHealth> gHealth;
+
+static int gBinderFd;
+
+extern int healthd_main(void);
+
+static void binder_event(uint32_t /*epevents*/) {
+    IPCThreadState::self()->handlePolledCommands();
+}
+
+// TODO(b/67463967): healthd_board_* functions should be removed in health@2.0
+int healthd_board_battery_update(struct android::BatteryProperties*)
+{
+    // return 0 to log periodic polled battery status to kernel log
+    return 0;
+}
+
+void healthd_mode_service_2_0_init(struct healthd_config* config) {
+    LOG(INFO) << LOG_TAG << " Hal is starting up...";
+
+    // Implementation-defined init logic goes here.
+    // 1. config->periodic_chores_interval_* variables
+    // 2. config->battery*Path variables
+    // 3. config->energyCounter. In this implementation, energyCounter is not defined.
+
+    configureRpcThreadpool(1, false /* callerWillJoin */);
+    IPCThreadState::self()->disableBackgroundScheduling(true);
+    IPCThreadState::self()->setupPolling(&gBinderFd);
+
+    if (gBinderFd >= 0) {
+        if (healthd_register_event(gBinderFd, binder_event))
+            LOG(ERROR) << LOG_TAG << ": Register for binder events failed";
+    }
+
+    gHealth = new ::android::hardware::health::V2_0::implementation::Health(config);
+    CHECK_EQ(gHealth->registerAsService(HEALTH_INSTANCE_NAME), android::OK)
+        << LOG_TAG << ": Failed to register HAL";
+
+    LOG(INFO) << LOG_TAG << ": Hal init done";
+}
+
+int healthd_mode_service_2_0_preparetowait(void) {
+    IPCThreadState::self()->flushCommands();
+    return -1;
+}
+
+void healthd_mode_service_2_0_heartbeat(void) {
+    // noop
+}
+
+void healthd_mode_service_2_0_battery_update(struct android::BatteryProperties* prop) {
+
+    // Implementation-defined update logic goes here. An implementation
+    // can make modifications to prop before broadcasting it to all callbacks.
+
+    HealthInfo info;
+    convertToHealthInfo(prop, info);
+    static_cast<Health*>(gHealth.get())->notifyListeners(info);
+}
+
+static struct healthd_mode_ops healthd_mode_service_2_0_ops = {
+    .init = healthd_mode_service_2_0_init,
+    .preparetowait = healthd_mode_service_2_0_preparetowait,
+    .heartbeat = healthd_mode_service_2_0_heartbeat,
+    .battery_update = healthd_mode_service_2_0_battery_update,
+};
+
+int main() {
+    healthd_mode_ops = &healthd_mode_service_2_0_ops;
+    LOG(INFO) << LOG_TAG << ": Hal starting main loop...";
+    return healthd_main();
+}