1 /*
2 // Copyright (c) 2018 Intel Corporation
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 //      http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 */
16 
17 #include "stepwisecontroller.hpp"
18 
19 #include "ec/stepwise.hpp"
20 #include "util.hpp"
21 #include "zone.hpp"
22 
23 #include <algorithm>
24 #include <chrono>
25 #include <iostream>
26 #include <map>
27 #include <memory>
28 #include <thread>
29 #include <vector>
30 
31 void StepwiseController::process(void)
32 {
33     // Get input value
34     float input = input_proc();
35 
36     // Calculate new output
37     float output = ec::stepwise(get_stepwise_info(), input);
38 
39     // Output new value
40     output_proc(output);
41 
42     return;
43 }
44 
45 std::unique_ptr<Controller> StepwiseController::CreateStepwiseController(
46     ZoneInterface* owner, const std::string& id,
47     const std::vector<std::string>& inputs, const ec::StepwiseInfo& initial)
48 {
49     // StepwiseController currently only supports precisely one input.
50     if (inputs.size() != 1)
51     {
52         return nullptr;
53     }
54 
55     auto thermal = std::make_unique<StepwiseController>(id, inputs, owner);
56 
57     ec::StepwiseInfo& info = thermal->get_stepwise_info();
58 
59     info = initial;
60 
61     return thermal;
62 }
63 
64 float StepwiseController::input_proc(void)
65 {
66     double value = _owner->getCachedValue(_inputs.at(0));
67     return static_cast<float>(value);
68 }
69 
70 void StepwiseController::output_proc(float value)
71 {
72     _owner->addRPMSetPoint(value);
73 
74     return;
75 }
76