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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_PIXELSTATS_UEVENTLISTENER_H
#define HARDWARE_GOOGLE_PIXEL_PIXELSTATS_UEVENTLISTENER_H
#include <aidl/android/frameworks/stats/IStats.h>
#include <android-base/chrono_utils.h>
#include <pixelstats/BatteryCapacityReporter.h>
#include <pixelstats/ChargeStatsReporter.h>
namespace android {
namespace hardware {
namespace google {
namespace pixel {
using aidl::android::frameworks::stats::IStats;
/**
* A class to listen for uevents and report reliability events to
* the PixelStats HAL.
* Runs in a background thread if created with ListenForeverInNewThread().
* Alternatively, process one message at a time with ProcessUevent().
*/
class UeventListener {
public:
struct UeventPaths {
const char *const AudioUevent;
const char *const SsocDetailsPath;
const char *const OverheatPath;
const char *const ChargeMetricsPath;
const char *const TypeCPartnerUevent;
const char *const TypeCPartnerVidPath;
const char *const TypeCPartnerPidPath;
const char *const WirelessChargerPtmcUevent; // Deprecated.
const char *const WirelessChargerPtmcPath; // Deprecated.
};
constexpr static const char *const ssoc_details_path =
"/sys/class/power_supply/battery/ssoc_details";
constexpr static const char *const overheat_path_default =
"/sys/devices/platform/soc/soc:google,overheat_mitigation";
constexpr static const char *const charge_metrics_path_default =
"/sys/class/power_supply/battery/charge_stats";
constexpr static const char *const typec_partner_vid_path_default =
"/sys/class/typec/port0-partner/identity/id_header";
constexpr static const char *const typec_partner_pid_path_default =
"/sys/class/typec/port0-partner/identity/product";
constexpr static const char *const typec_partner_uevent_default = "DEVTYPE=typec_partner";
UeventListener(const std::string audio_uevent, const std::string ssoc_details_path = "",
const std::string overheat_path = overheat_path_default,
const std::string charge_metrics_path = charge_metrics_path_default,
const std::string typec_partner_vid_path = typec_partner_vid_path_default,
const std::string typec_partner_pid_path = typec_partner_pid_path_default);
UeventListener(const struct UeventPaths &paths);
bool ProcessUevent(); // Process a single Uevent.
void ListenForever(); // Process Uevents forever
private:
bool ReadFileToInt(const std::string &path, int *val);
bool ReadFileToInt(const char *path, int *val);
void ReportMicStatusUevents(const std::shared_ptr<IStats> &stats_client, const char *devpath,
const char *mic_status);
void ReportMicBrokenOrDegraded(const std::shared_ptr<IStats> &stats_client, const int mic,
const bool isBroken);
void ReportUsbPortOverheatEvent(const std::shared_ptr<IStats> &stats_client,
const char *driver);
void ReportChargeStats(const std::shared_ptr<IStats> &stats_client, const std::string line,
const std::string wline_at, const std::string wline_ac,
const std::string pca_line);
void ReportVoltageTierStats(const std::shared_ptr<IStats> &stats_client, const char *line,
const bool has_wireless, const std::string wfile_contents);
void ReportChargeMetricsEvent(const std::shared_ptr<IStats> &stats_client, const char *driver);
void ReportBatteryCapacityFGEvent(const std::shared_ptr<IStats> &stats_client,
const char *subsystem);
void ReportTypeCPartnerId(const std::shared_ptr<IStats> &stats_client);
const std::string kAudioUevent;
const std::string kBatterySSOCPath;
const std::string kUsbPortOverheatPath;
const std::string kChargeMetricsPath;
const std::string kTypeCPartnerUevent;
const std::string kTypeCPartnerVidPath;
const std::string kTypeCPartnerPidPath;
BatteryCapacityReporter battery_capacity_reporter_;
ChargeStatsReporter charge_stats_reporter_;
// Proto messages are 1-indexed and VendorAtom field numbers start at 2, so
// store everything in the values array at the index of the field number
// -2.
const int kVendorAtomOffset = 2;
int uevent_fd_;
int log_fd_;
};
} // namespace pixel
} // namespace google
} // namespace hardware
} // namespace android
#endif // HARDWARE_GOOGLE_PIXEL_PIXELSTATS_UEVENTLISTENER_H
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