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1 | /** | |||
2 | * @file frequency_sensor.cpp | |||
3 | */ | |||
4 | ||||
5 | #include "pch.h" | |||
6 | ||||
7 | #include "frequency_sensor.h" | |||
8 | ||||
9 | #include "digital_input_exti.h" | |||
10 | ||||
11 | #if EFI_PROD_CODE | |||
12 | // Callback adapter since we can't pass a member function to a callback | |||
13 | static void freqSensorExtiCallback(void* arg, efitick_t nowNt) { | |||
14 | reinterpret_cast<FrequencySensor*>(arg)->onEdge(nowNt); | |||
15 | } | |||
16 | #endif // EFI_PROD_CODE | |||
17 | ||||
18 | 11 | void FrequencySensor::initIfValid(brain_pin_e pin, SensorConverter &converter, float filterParameter) { | ||
19 |
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11 | if (!isBrainPinValid(pin)) { |
20 | 10 | return; | ||
21 | } | |||
22 | ||||
23 | // Filter parameter greater than or equal to 0.5 impossible as it causes filter instability, clamp | |||
24 | // far under that value. | |||
25 |
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1 | if (filterParameter > 0.35f) { |
26 | ✗ | filterParameter = 0.35f; | ||
27 | } | |||
28 | ||||
29 | 1 | m_filter.configureLowpass(1, filterParameter); | ||
30 | ||||
31 | 1 | setFunction(converter); | ||
32 | ||||
33 | #if EFI_PROD_CODE | |||
34 | if (efiExtiEnablePin(getSensorName(), pin, PAL_EVENT_MODE_FALLING_EDGE, | |||
35 | freqSensorExtiCallback, reinterpret_cast<void*>(this)) < 0) { | |||
36 | return; | |||
37 | } | |||
38 | #endif // EFI_PROD_CODE | |||
39 | ||||
40 | 1 | m_pin = pin; | ||
41 | ||||
42 | 1 | Register(); | ||
43 | } | |||
44 | ||||
45 | ✗ | void FrequencySensor::deInit() { | ||
46 | ✗ | if (!isBrainPinValid(m_pin)) { | ||
47 | ✗ | return; | ||
48 | } | |||
49 | ||||
50 | #if EFI_PROD_CODE | |||
51 | efiExtiDisablePin(m_pin); | |||
52 | #endif | |||
53 | ||||
54 | ✗ | m_pin = Gpio::Unassigned; | ||
55 | } | |||
56 | ||||
57 | 1000 | void FrequencySensor::onEdge(efitick_t nowNt) { | ||
58 | // diagnostics | |||
59 | 1000 | eventCounter++; | ||
60 | 1000 | float frequency = 1 / m_edgeTimer.getElapsedSecondsAndReset(nowNt); | ||
61 | ||||
62 |
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1000 | if (useBiQuad) { |
63 | 1000 | frequency = m_filter.filter(frequency); | ||
64 | } | |||
65 | ||||
66 | 1000 | postRawValue(frequency, nowNt); | ||
67 | 1000 | } | ||
68 |