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/*
* Copyright (C) 2022 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.
*/
#define LOG_TAG "pixelstats: BatteryHealthReporter"
#include <android-base/file.h>
#include <hardware/google/pixel/pixelstats/pixelatoms.pb.h>
#include <log/log.h>
#include <pixelstats/BatteryHealthReporter.h>
#include <pixelstats/StatsHelper.h>
#include <time.h>
#include <utils/Timers.h>
#include <cinttypes>
namespace android {
namespace hardware {
namespace google {
namespace pixel {
using aidl::android::frameworks::stats::IStats;
using aidl::android::frameworks::stats::VendorAtom;
using aidl::android::frameworks::stats::VendorAtomValue;
using android::base::ReadFileToString;
using android::base::WriteStringToFile;
using android::hardware::google::pixel::PixelAtoms::BatteryHealthStatus;
using android::hardware::google::pixel::PixelAtoms::BatteryHealthUsage;
const int SECONDS_PER_MONTH = 60 * 60 * 24 * 30;
BatteryHealthReporter::BatteryHealthReporter() {}
int64_t BatteryHealthReporter::getTimeSecs(void) {
return nanoseconds_to_seconds(systemTime(SYSTEM_TIME_BOOTTIME));
}
bool BatteryHealthReporter::reportBatteryHealthStatus(const std::shared_ptr<IStats> &stats_client) {
std::string path = kBatteryHealthStatusPath;
std::string file_contents, line;
std::istringstream ss;
if (!ReadFileToString(path.c_str(), &file_contents)) {
ALOGD("Unsupported path %s - %s", path.c_str(), strerror(errno));
return false;
}
ss.str(file_contents);
while (std::getline(ss, line)) {
reportBatteryHealthStatusEvent(stats_client, line.c_str());
}
return true;
}
void BatteryHealthReporter::reportBatteryHealthStatusEvent(
const std::shared_ptr<IStats> &stats_client, const char *line) {
int health_status_stats_fields[] = {
BatteryHealthStatus::kHealthAlgorithmFieldNumber,
BatteryHealthStatus::kHealthStatusFieldNumber,
BatteryHealthStatus::kHealthIndexFieldNumber,
BatteryHealthStatus::kHealthCapacityIndexFieldNumber,
BatteryHealthStatus::kHealthImpedanceIndexFieldNumber,
BatteryHealthStatus::kSwellingCumulativeFieldNumber,
BatteryHealthStatus::kHealthFullCapacityFieldNumber,
BatteryHealthStatus::kCurrentImpedanceFieldNumber,
BatteryHealthStatus::kBatteryAgeFieldNumber,
BatteryHealthStatus::kCycleCountFieldNumber,
BatteryHealthStatus::kBatteryDisconnectStatusFieldNumber,
};
const int32_t vtier_fields_size = std::size(health_status_stats_fields);
static_assert(vtier_fields_size == 11, "Unexpected battery health status fields size");
std::vector<VendorAtomValue> values(vtier_fields_size);
VendorAtomValue val;
int32_t i = 0, fields_size = 0, tmp[vtier_fields_size] = {0};
// health_algo: health_status, health_index,healh_capacity_index,health_imp_index,
// swelling_cumulative,health_full_capacity,current_impedance, battery_age,cycle_count,
// bpst_status
fields_size = sscanf(line, "%d: %d, %d,%d,%d %d,%d,%d %d,%d, %d", &tmp[0], &tmp[1], &tmp[2],
&tmp[3], &tmp[4], &tmp[5], &tmp[6], &tmp[7], &tmp[8], &tmp[9], &tmp[10]);
if (fields_size < (vtier_fields_size - 1) || fields_size > vtier_fields_size) {
// Whether bpst_status exists or not, it needs to be compatible
// If format isn't as expected, then ignore line on purpose
return;
}
ALOGD("BatteryHealthStatus: processed %s", line);
for (i = 0; i < fields_size; i++) {
val.set<VendorAtomValue::intValue>(tmp[i]);
values[health_status_stats_fields[i] - kVendorAtomOffset] = val;
}
VendorAtom event = {.reverseDomainName = "",
.atomId = PixelAtoms::Atom::kBatteryHealthStatus,
.values = std::move(values)};
const ndk::ScopedAStatus ret = stats_client->reportVendorAtom(event);
if (!ret.isOk())
ALOGE("Unable to report BatteryHealthStatus to Stats service");
}
bool BatteryHealthReporter::reportBatteryHealthUsage(const std::shared_ptr<IStats> &stats_client) {
std::string path = kBatteryHealthUsagePath;
std::string file_contents, line;
std::istringstream ss;
if (!ReadFileToString(path.c_str(), &file_contents)) {
ALOGD("Unsupported path %s - %s", path.c_str(), strerror(errno));
return false;
}
ss.str(file_contents);
// skip first title line
if (!std::getline(ss, line)) {
ALOGE("Unable to read first line of: %s", path.c_str());
return false;
}
while (std::getline(ss, line)) {
reportBatteryHealthUsageEvent(stats_client, line.c_str());
}
return true;
}
void BatteryHealthReporter::reportBatteryHealthUsageEvent(
const std::shared_ptr<IStats> &stats_client, const char *line) {
int health_status_stats_fields[] = {
BatteryHealthUsage::kTemperatureLimitDeciCFieldNumber,
BatteryHealthUsage::kSocLimitFieldNumber,
BatteryHealthUsage::kChargeTimeSecsFieldNumber,
BatteryHealthUsage::kDischargeTimeSecsFieldNumber,
};
const int32_t vtier_fields_size = std::size(health_status_stats_fields);
static_assert(vtier_fields_size == 4, "Unexpected battery health status fields size");
std::vector<VendorAtomValue> values(vtier_fields_size);
VendorAtomValue val;
int32_t i = 0, tmp[vtier_fields_size] = {0};
// temp/soc charge(s) discharge(s)
if (sscanf(line, "%d/%d\t%d\t%d", &tmp[0], &tmp[1], &tmp[2], &tmp[3]) != vtier_fields_size) {
/* If format isn't as expected, then ignore line on purpose */
return;
}
ALOGD("BatteryHealthUsage: processed %s", line);
for (i = 0; i < vtier_fields_size; i++) {
val.set<VendorAtomValue::intValue>(tmp[i]);
values[health_status_stats_fields[i] - kVendorAtomOffset] = val;
}
VendorAtom event = {.reverseDomainName = "",
.atomId = PixelAtoms::Atom::kBatteryHealthUsage,
.values = std::move(values)};
const ndk::ScopedAStatus ret = stats_client->reportVendorAtom(event);
if (!ret.isOk())
ALOGE("Unable to report BatteryHealthStatus to Stats service");
}
void BatteryHealthReporter::checkAndReportStatus(const std::shared_ptr<IStats> &stats_client) {
int64_t now = getTimeSecs();
if ((report_time_ != 0) && (now - report_time_ < SECONDS_PER_MONTH)) {
ALOGD("Do not upload yet. now: %" PRId64 ", pre: %" PRId64, now, report_time_);
return;
}
bool successStatus = reportBatteryHealthStatus(stats_client);
bool successUsage = reportBatteryHealthUsage(stats_client);
if (successStatus && successUsage) {
report_time_ = now;
}
}
} // namespace pixel
} // namespace google
} // namespace hardware
} // namespace android
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