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/*
* Copyright (C) 2021 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-uevent"
#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/parseint.h>
#include <android-base/strings.h>
#include <hardware/google/pixel/pixelstats/pixelatoms.pb.h>
#include <log/log.h>
#include <pixelstats/WirelessChargeStats.h>
namespace android {
namespace hardware {
namespace google {
namespace pixel {
using android::base::ReadFileToString;
using android::base::WriteStringToFile;
/* Reference to <kernel>/private/google-modules/bms/p9221_charger.h
* translate sys_mode value to enum define in pixelatoms.proto
*/
int WirelessChargeStats::TranslateSysModeToAtomValue(const int sys_mode) {
switch (sys_mode) {
case 1:
return PixelAtoms::ChargeStats::ADAPTER_TYPE_WPC_BPP;
case 2:
return PixelAtoms::ChargeStats::ADAPTER_TYPE_WPC_EPP;
case 3:
return PixelAtoms::ChargeStats::ADAPTER_TYPE_WPC_L7;
case 0xe0:
return PixelAtoms::ChargeStats::ADAPTER_TYPE_DL;
case 0xa0:
return PixelAtoms::ChargeStats::ADAPTER_TYPE_L7;
default:
return PixelAtoms::ChargeStats::ADAPTER_TYPE_WLC;
}
}
bool WirelessChargeStats::CheckWirelessContentsAndAck(std::string *file_contents) {
std::string line;
std::istringstream ss;
if (!ReadFileToString(kWirelessChargeMetricsPath.c_str(), file_contents))
return false;
ss.str(*file_contents);
if (!std::getline(ss, line)) {
ALOGE("Unable to read first line %s - %s", kWirelessChargeMetricsPath.c_str(),
strerror(errno));
return false;
}
if (!WriteStringToFile(std::to_string(0), kWirelessChargeMetricsPath.c_str())) {
ALOGE("Couldn't clear %s - %s", kWirelessChargeMetricsPath.c_str(), strerror(errno));
return false;
}
return true;
}
void WirelessChargeStats::ResetChargeMetrics() {
pout_min_ = 0;
pout_avg_ = 0;
pout_max_ = 0;
of_freq_ = 0;
alignment_ = 0;
count_ = 0;
}
void WirelessChargeStats::CalculateWirelessChargeMetrics(const int pout_min, const int pout_avg,
const int pout_max, const int of_freq,
const int alignment) {
if ((pout_min_ == 0) || (pout_min_ > pout_min))
pout_min_ = pout_min;
pout_avg_ += pout_avg;
count_++;
if ((pout_max_ == 0) || (pout_max_ < pout_max))
pout_max_ = pout_max;
if (alignment_ == 0 || ((alignment >= 0) && (alignment_ > alignment))) {
of_freq_ = of_freq;
alignment_ = alignment;
}
}
void WirelessChargeStats::CalculateWirelessChargeStats(const int ssoc_tmp,
const std::string file_contents) {
std::string line;
std::istringstream ss;
ResetChargeMetrics();
ss.str(file_contents);
while (std::getline(ss, line)) {
int32_t buf[11] = {0};
if (sscanf(line.c_str(), "%d:%d, %d,%d,%d, %d,%d, %d,%d,%d,%d", &buf[0], &buf[1], &buf[2],
&buf[3], &buf[4], &buf[5], &buf[6], &buf[7], &buf[8], &buf[9], &buf[10]) == 11) {
const int32_t soc = buf[0];
/* calculate wireless charge stats of next voltage tier */
if (soc > tier_soc_) {
const int32_t alignment = buf[6];
if (alignment >= 0 && alignment < 100)
ALOGD("WirelessChargeStats: misalignment %s", line.c_str());
CalculateWirelessChargeMetrics(buf[2], buf[3], buf[4], buf[5], buf[6]);
if (soc >= ssoc_tmp) {
/* reach next voltage tier, restore final results before sending out*/
pout_avg_ = (pout_avg_ / count_);
tier_soc_ = soc;
ALOGD("WirelessChargeStats: atoms %d %d %d %d", pout_min_, pout_avg_, pout_max_,
of_freq_);
return;
}
}
}
}
}
WirelessChargeStats::WirelessChargeStats(const std::string wireless_charge_metrics_path)
: kWirelessChargeMetricsPath(wireless_charge_metrics_path) {}
} // namespace pixel
} // namespace google
} // namespace hardware
} // namespace android
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