ath10k_temperature_sensor.h

// Copyright 2015 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THERMALD_ATH10K_TEMPERATURE_SENSOR_H_
#define THERMALD_ATH10K_TEMPERATURE_SENSOR_H_

#include <memory>
#include <string>

#include "base/macros.h"

#include "thermald/ath10k_interface.h"
#include "thermald/hwmon_temperature_sensor.h"
#include "thermald/temperature_sensor_common.h"

namespace thermald {

// Class to interface with the temperature sensor of an ath10k wireless
// interface.
class Ath10kTemperatureSensor : public TemperatureSensorCommon {
 public:
  // Constructs a temperature sensor corresponding to the sensor of the ath10k
  // interface with the given name.
  explicit Ath10kTemperatureSensor(const std::string &interface_name);

  // Constructs a temperature sensor with a custom name corresponding
  // to the sensor of the ath10k interface with the given interface name.
  Ath10kTemperatureSensor(const std::string &interface_name,
                          const std::string &sensor_name);

  // Read the temperature from the sensor.
  bool ReadTemperature(int *value) override;

  // Returns true if the sensor is operational, false otherwise.
  // The temperarure sensor of an ath10k interface can only be read when
  // the interface is active.
  bool IsOperational() override;

 private:
  bool Initialize();

  const std::string interface_name_;
  std::unique_ptr<Ath10kInterface> ath10k_interface_;
  std::unique_ptr<HwmonTemperatureSensor> hwmon_sensor_;
  bool no_thermal_support_;

  DISALLOW_COPY_AND_ASSIGN(Ath10kTemperatureSensor);
};

}  // namespace thermald

#endif  // THERMALD_ATH10K_TEMPERATURE_SENSOR_H_