pid/fancontroller.hpp

#pragma once

#include <memory>
#include <string>
#include <vector>

#include "controller.hpp"
#include "fan.hpp"
#include "ec/pid.hpp"


/*
 * A FanController is a PID controller that reads a number of fans and given
 * the output then tries to set them to the goal values set by the thermal
 * controllers.
 */
class FanController : public PIDController
{
    public:
        static std::unique_ptr<PIDController> CreateFanPid(
            std::shared_ptr<PIDZone> owner,
            const std::string& id,
            std::vector<std::string>& inputs,
            ec::pidinfo initial);

        FanController(const std::string& id,
                      std::vector<std::string>& inputs,
                      std::shared_ptr<PIDZone> owner)
            : PIDController(id, owner),
              _inputs(inputs),
              _direction(FanSpeedDirection::NEUTRAL)
        { }

        float input_proc(void) override;
        float setpt_proc(void) override;
        void output_proc(float value) override;

        void setFanDirection(FanSpeedDirection direction)
        {
            _direction = direction;
        };

    private:
        std::vector<std::string> _inputs;
        FanSpeedDirection _direction;
};