HealthService: Record voltage_avg at shutdown and upload on boot
Bug: 79881385
Test: disabled 0% SoC check and checked logs after 2 boots
Change-Id: I207ff48b6ea4f8eb39b99a58a777b2875106f98b
Signed-off-by: Maggie White <maggiewhite@google.com>
diff --git a/health/LowBatteryShutdownMetrics.h b/health/LowBatteryShutdownMetrics.h
new file mode 100644
index 0000000..ee17f9c
--- /dev/null
+++ b/health/LowBatteryShutdownMetrics.h
@@ -0,0 +1,61 @@
+/*
+ * 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.
+ */
+
+#ifndef DEVICE_GOOGLE_CROSSHATCH_HEALTH_LOWBATTERYSHUTDOWNMETRICS_H
+#define DEVICE_GOOGLE_CROSSHATCH_HEALTH_LOWBATTERYSHUTDOWNMETRICS_H
+
+#include <android-base/file.h>
+#include <android-base/logging.h>
+#include <android-base/properties.h>
+#include <android-base/strings.h>
+#include <batteryservice/BatteryService.h>
+#include <math.h>
+#include <time.h>
+#include <utils/Timers.h>
+#include <string>
+
+#include <hardware/google/pixelstats/1.0/IPixelStats.h>
+
+namespace device {
+namespace google {
+namespace crosshatch {
+namespace health {
+
+class LowBatteryShutdownMetrics {
+ public:
+ LowBatteryShutdownMetrics();
+ void logShutdownVoltage(struct android::BatteryProperties *props);
+
+ private:
+ const char *kVoltageAvg = "/sys/class/power_supply/maxfg/voltage_avg";
+ const char *kPersistProp = "persist.vendor.shutdown.voltage_avg";
+
+ // Helps enforce that we only record kVoltageAvg once per boot cycle
+ bool prop_written_;
+ // Help us avoid polling kPersistProp if it's empty
+ bool prop_empty_;
+
+ bool saveVoltageAvg();
+ void readStatus();
+ bool uploadVoltageAvg();
+};
+
+} // namespace health
+} // namespace crosshatch
+} // namespace google
+} // namespace device
+
+#endif