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/*
* 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 HARDWARE_GOOGLE_PIXEL_HEALTH_BATTERYMETRICSLOGGER_H
#define HARDWARE_GOOGLE_PIXEL_HEALTH_BATTERYMETRICSLOGGER_H
#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/strings.h>
#include <batteryservice/BatteryService.h>
#include <math.h>
#include <time.h>
#include <utils/Timers.h>
#include <string>
#include <android/frameworks/stats/1.0/IStats.h>
namespace hardware {
namespace google {
namespace pixel {
namespace health {
using android::sp;
using android::frameworks::stats::V1_0::BatteryHealthSnapshotArgs;
using android::frameworks::stats::V1_0::IStats;
class BatteryMetricsLogger {
public:
BatteryMetricsLogger(const char *const batt_res, const char *const batt_ocv,
int sample_period = TEN_MINUTES_SEC, int upload_period = ONE_DAY_SEC);
void logBatteryProperties(struct android::BatteryProperties *props);
private:
enum sampleType {
TIME, // time in seconds
CURR, // current in mA
VOLT, // voltage in mV
TEMP, // temp in deci-degC
SOC, // SoC in % battery level
RES, // resistance in milli-ohms
OCV, // open-circuit voltage in mV
NUM_FIELDS, // do not reference
};
const int kStatsSnapshotType[NUM_FIELDS] = {
-1,
(int)BatteryHealthSnapshotArgs::BatterySnapshotType::MIN_CURRENT,
(int)BatteryHealthSnapshotArgs::BatterySnapshotType::MIN_VOLTAGE,
(int)BatteryHealthSnapshotArgs::BatterySnapshotType::MIN_TEMP,
(int)BatteryHealthSnapshotArgs::BatterySnapshotType::MIN_BATT_LEVEL,
(int)BatteryHealthSnapshotArgs::BatterySnapshotType::MIN_RESISTANCE,
-1,
};
const char *const kBatteryResistance;
const char *const kBatteryOCV;
const int kSamplePeriod;
const int kUploadPeriod;
const int kMaxSamples;
static constexpr int TEN_MINUTES_SEC = 10 * 60;
static constexpr int ONE_DAY_SEC = 24 * 60 * 60;
// min and max are referenced by type in both the X and Y axes
// i.e. min[TYPE] is the event where the minimum of that type occurred, and
// min[TYPE][TYPE] is the reading of that type at that minimum event
int32_t min_[NUM_FIELDS][NUM_FIELDS];
int32_t max_[NUM_FIELDS][NUM_FIELDS];
int32_t num_res_samples_; // number of res samples since last upload
int32_t num_samples_; // number of min/max samples since last upload
int64_t accum_resistance_; // accumulative resistance
int64_t last_sample_; // time in seconds since boot of last sample
int64_t last_upload_; // time in seconds since boot of last upload
int64_t getTime();
bool recordSample(struct android::BatteryProperties *props);
bool uploadMetrics();
bool uploadOutlierMetric(sp<IStats> stats_client, sampleType type);
};
} // namespace health
} // namespace pixel
} // namespace google
} // namespace hardware
#endif
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