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                      const std::vector<std::string>& inputs,
22                      const ec::pidinfo& initial);
23 
24     FanController(const std::string& id, const std::vector<std::string>& inputs,
25                   ZoneInterface* owner) :
26         PIDController(id, owner),
27         _inputs(inputs), _direction(FanSpeedDirection::NEUTRAL)
28     {
29     }
30 
31     float input_proc(void) override;
32     float setpt_proc(void) override;
33     void output_proc(float value) override;
34 
35     FanSpeedDirection getFanDirection(void) const
36     {
37         return _direction;
38     }
39 
40     void setFanDirection(FanSpeedDirection direction)
41     {
42         _direction = direction;
43     };
44 
45   private:
46     std::vector<std::string> _inputs;
47     FanSpeedDirection _direction;
48 };
49