112 lines
2.8 KiB
C++
112 lines
2.8 KiB
C++
#include "pch.h"
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#include "adc_subscription.h"
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#include "functional_sensor.h"
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#include "func_chain.h"
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#include "linear_func.h"
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#include "resistance_func.h"
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#include "thermistor_func.h"
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using resist = ResistanceFunc;
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using therm = ThermistorFunc;
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// Each one could be either linear or thermistor
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struct FuncPair {
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LinearFunc linear;
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FuncChain<resist, therm> thermistor;
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};
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static CCM_OPTIONAL FunctionalSensor clt(SensorType::Clt, MS2NT(10));
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static CCM_OPTIONAL FunctionalSensor iat(SensorType::Iat, MS2NT(10));
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static CCM_OPTIONAL FunctionalSensor aux1(SensorType::AuxTemp1, MS2NT(10));
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static CCM_OPTIONAL FunctionalSensor aux2(SensorType::AuxTemp2, MS2NT(10));
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static FuncPair fclt, fiat, faux1, faux2;
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void validateThermistorConfig(thermistor_conf_s& cfg) {
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if (cfg.tempC_1 >= cfg.tempC_2 ||
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cfg.tempC_2 >= cfg.tempC_3) {
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firmwareError(OBD_Engine_Coolant_Temperature_Circuit_Malfunction, "Invalid thermistor configuration: please check that temperatures are in the ascending order %f %f %f",
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cfg.tempC_1,
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cfg.tempC_2,
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cfg.tempC_3);
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}
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}
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static SensorConverter& configureTempSensorFunction(thermistor_conf_s& cfg, FuncPair& p, bool isLinear) {
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if (isLinear) {
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p.linear.configure(cfg.resistance_1, cfg.tempC_1, cfg.resistance_2, cfg.tempC_2, -50, 250);
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return p.linear;
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} else /* sensor is thermistor */ {
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validateThermistorConfig(cfg);
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p.thermistor.get<resist>().configure(5.0f, cfg.bias_resistor);
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p.thermistor.get<therm>().configure(cfg);
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return p.thermistor;
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}
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}
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void configTherm(FunctionalSensor &sensor,
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FuncPair &p,
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ThermistorConf &config,
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bool isLinear) {
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// nothing to do if no channel
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if (!isAdcChannelValid(config.adcChannel)) {
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return;
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}
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// Configure the conversion function for this sensor
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sensor.setFunction(configureTempSensorFunction(config.config, p, isLinear));
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}
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static void configureTempSensor(FunctionalSensor &sensor,
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FuncPair &p,
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ThermistorConf &config,
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bool isLinear) {
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auto channel = config.adcChannel;
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// Only register if we have a sensor
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if (!isAdcChannelValid(channel)) {
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return;
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}
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configTherm(sensor, p, config, isLinear);
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// Register & subscribe
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AdcSubscription::SubscribeSensor(sensor, channel, 2);
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sensor.Register();
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}
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void initThermistors(DECLARE_CONFIG_PARAMETER_SIGNATURE) {
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if (!CONFIG(consumeObdSensors)) {
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configureTempSensor(clt,
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fclt,
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CONFIG(clt),
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CONFIG(useLinearCltSensor));
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configureTempSensor(iat,
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fiat,
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CONFIG(iat),
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CONFIG(useLinearIatSensor));
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}
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configureTempSensor(aux1,
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faux1,
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CONFIG(auxTempSensor1),
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false);
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configureTempSensor(aux2,
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faux2,
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CONFIG(auxTempSensor2),
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false);
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}
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void deinitThermistors() {
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AdcSubscription::UnsubscribeSensor(clt);
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AdcSubscription::UnsubscribeSensor(iat);
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AdcSubscription::UnsubscribeSensor(aux1);
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AdcSubscription::UnsubscribeSensor(aux2);
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}
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