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/*
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __THERMAL_HELPER_H__
#define __THERMAL_HELPER_H__
#include <list>
#include <string>
#include <unordered_map>
#include <vector>
#include <ftw.h>
#include <fnmatch.h>
#include <android/hardware/thermal/1.0/IThermal.h>
#include "utils/cooling_devices.h"
#include "utils/sensors.h"
namespace android {
namespace hardware {
namespace thermal {
namespace V1_1 {
namespace implementation {
using ::android::hardware::hidl_vec;
using ::android::hardware::thermal::V1_0::CpuUsage;
using ::android::hardware::thermal::V1_0::Temperature;
using ::android::hardware::thermal::V1_0::TemperatureType;
constexpr char kSkinSensorType[] = "quiet-therm-adc";
constexpr float kMultiplier = .001;
struct ThrottlingThresholds {
ThrottlingThresholds() : cpu(NAN), gpu(NAN), ss(NAN), battery(NAN) {}
float cpu;
float gpu;
float ss;
float battery;
};
class ThermalHelper {
public:
ThermalHelper();
~ThermalHelper() = default;
bool fillTemperatures(hidl_vec<Temperature>* temperatures);
bool fillCpuUsages(hidl_vec<CpuUsage>* cpu_usages);
// Dissallow copy and assign.
ThermalHelper(const ThermalHelper&) = delete;
void operator=(const ThermalHelper&) = delete;
bool isInitializedOk() const { return is_initialized_; }
// Checks the throttling data after seeing a modification. This function
// will store the new throttling number into the throttling level map, decide
// whether we should notify for throttling, and set the is_throttling and
// temperature params used to call notifyThrottling(). Returns true if we
// need to notify for throttling and sets the notify params accordingly. If
// not the function returns false and leaves notify_params untouched.
bool checkThrottlingData(
const std::pair<std::string, std::string>& throttling_data,
std::pair<bool, Temperature>* notify_params);
// Returns a vector of all cooling devices that has been found on the
// device.
std::vector<std::string> getCoolingDevicePaths();
// Read the temperature of a single sensor.
bool readTemperature(
const std::string& sensor_name, Temperature* out) const;
// Read the value of a single cooling device.
bool readCoolingDevice(const std::string& cooling_device, int* data) const;
const std::map<std::string, std::string>& getValidCoolingDeviceMap() const;
private:
bool initializeSensorMap();
bool initializeCoolingDevices();
// Read the throttling levels from
// cooling_device_path_to_throttling_level_map_ and return the maximum level
// of throttling.
int getMaxThrottlingLevelFromMap() const;
Sensors thermal_sensors_;
CoolingDevices cooling_devices_;
std::unordered_map<std::string, int>
cooling_device_path_to_throttling_level_map_;
ThrottlingThresholds thresholds_;
ThrottlingThresholds vr_thresholds_;
ThrottlingThresholds shutdown_thresholds_;
const bool is_initialized_;
};
} // namespace implementation
} // namespace V1_1
} // namespace thermal
} // namespace hardware
} // namespace android
#endif // __THERMAL_HELPER_H__
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