1 #pragma once
2 
3 #include "ec/pid.hpp"
4 #include "fan.hpp"
5 #include "pidcontroller.hpp"
6 
7 #include <memory>
8 #include <string>
9 #include <vector>
10 
11 /*
12  * A FanController is a PID controller that reads a number of fans and given
13  * the output then tries to set them to the goal values set by the thermal
14  * controllers.
15  */
16 class FanController : public PIDController
17 {
18   public:
19     static std::unique_ptr<PIDController>
20         CreateFanPid(ZoneInterface* owner, const std::string& id,
21                      std::vector<std::string>& inputs, ec::pidinfo initial);
22 
23     FanController(const std::string& id, std::vector<std::string>& inputs,
24                   ZoneInterface* owner) :
25         PIDController(id, owner),
26         _inputs(inputs), _direction(FanSpeedDirection::NEUTRAL)
27     {
28     }
29 
30     float input_proc(void) override;
31     float setpt_proc(void) override;
32     void output_proc(float value) override;
33 
34     FanSpeedDirection getFanDirection(void) const
35     {
36         return _direction;
37     }
38 
39     void setFanDirection(FanSpeedDirection direction)
40     {
41         _direction = direction;
42     };
43 
44   private:
45     std::vector<std::string> _inputs;
46     FanSpeedDirection _direction;
47 };
48