113 lines
3.7 KiB
C++
113 lines
3.7 KiB
C++
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/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <pixelhealth/HealthHelper.h>
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#include <pixelhealth/LowBatteryShutdownMetrics.h>
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#include <pixelhealth/StatsHelper.h>
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namespace hardware {
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namespace google {
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namespace pixel {
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namespace health {
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using aidl::android::hardware::health::BatteryStatus;
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using aidl::android::hardware::health::HealthInfo;
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using android::base::GetProperty;
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using android::base::ReadFileToString;
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using android::base::SetProperty;
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LowBatteryShutdownMetrics::LowBatteryShutdownMetrics(const char *const voltage_avg,
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const char *const persist_prop)
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: kVoltageAvg(voltage_avg), kPersistProp(persist_prop) {
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prop_written_ = false;
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prop_empty_ = false;
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}
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bool LowBatteryShutdownMetrics::uploadVoltageAvg(void) {
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std::string prop_contents = GetProperty(kPersistProp, "");
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LOG(INFO) << kPersistProp << " property contents: " << prop_contents;
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if (prop_contents.size() == 0) { // we don't have anything to upload
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prop_empty_ = true;
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return false;
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}
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std::shared_ptr<IStats> stats_client = getStatsService();
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if (!stats_client) {
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LOG(ERROR) << "Unable to connect to IStats service";
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return false;
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}
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// Process and upload comma-delimited last voltage values
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VendorBatteryCausedShutdown shutdown;
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int32_t voltage_avg;
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for (const auto &item : android::base::Split(prop_contents, ",")) {
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if (!(voltage_avg = stoi(item))) {
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LOG(ERROR) << "Couldn't process voltage value " << item;
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continue;
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}
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LOG(INFO) << "Uploading voltage_avg: " << std::to_string(voltage_avg);
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shutdown.set_last_recorded_micro_volt(voltage_avg);
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reportBatteryCausedShutdown(stats_client, shutdown);
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}
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// Clear property now that we've uploaded its contents
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SetProperty(kPersistProp, "");
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return true;
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}
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bool LowBatteryShutdownMetrics::saveVoltageAvg(void) {
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std::string voltage_avg;
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std::string prop_contents;
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if (!ReadFileToString(kVoltageAvg, &voltage_avg)) {
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LOG(ERROR) << "Can't read the Maxim fuel gauge average voltage value";
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return false;
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}
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voltage_avg = ::android::base::Trim(voltage_avg);
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prop_contents = GetProperty(kPersistProp, "");
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// Comma delimit additional values
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if (prop_contents.size() > 0)
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prop_contents += ",";
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prop_contents += voltage_avg;
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LOG(INFO) << "Saving \"" << prop_contents << "\" to " << kPersistProp;
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return SetProperty(kPersistProp, prop_contents);
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}
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void LowBatteryShutdownMetrics::logShutdownVoltage(const HealthInfo &health_info) {
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// If we're about to shut down due to low battery, save voltage_avg
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if (!prop_written_ && health_info.batteryLevel == 0 &&
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health_info.batteryStatus == BatteryStatus::DISCHARGING) {
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prop_written_ = saveVoltageAvg();
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} else if (!prop_empty_) { // We have data to upload
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uploadVoltageAvg();
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}
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return;
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}
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void LowBatteryShutdownMetrics::logShutdownVoltage(struct android::BatteryProperties *props) {
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logShutdownVoltage(ToHealthInfo(props));
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}
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} // namespace health
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} // namespace pixel
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} // namespace google
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} // namespace hardware
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