allow disabling fast ADC (#2406)

* mostly guard against no fast adc

* disable on h7

* guard more

* guard adc init

* you can't do that in c++

* we need that

* s

Co-authored-by: Matthew Kennedy <makenne@microsoft.com>

firmware/config/boards/hellen/cypress/efifeatures.h

@@ -163,6 +163,7 @@
 #endif
 
 #define EFI_INTERNAL_ADC TRUE
+#define EFI_USE_FAST_ADC TRUE
 
 #define EFI_NARROW_EGO_AVERAGING FALSE
 

firmware/config/boards/kinetis/efifeatures.h

@@ -144,6 +144,8 @@
 #define EFI_INTERNAL_ADC TRUE
 #endif
 
+#define EFI_USE_FAST_ADC TRUE
+
 #define EFI_NARROW_EGO_AVERAGING FALSE
 
 #ifndef EFI_CAN_SUPPORT

firmware/config/stm32f4ems/efifeatures.h

@@ -193,6 +193,8 @@
 #define EFI_INTERNAL_ADC TRUE
 #endif
 
+#define EFI_USE_FAST_ADC TRUE
+
 #define EFI_NARROW_EGO_AVERAGING TRUE
 
 #ifndef EFI_CAN_SUPPORT

firmware/config/stm32h7ems/efifeatures.h

@@ -2,6 +2,9 @@
 
 #pragma once
 
+#undef EFI_USE_FAST_ADC
+#define EFI_USE_FAST_ADC FALSE
+
 #undef EFI_MC33816
 #define EFI_MC33816 FALSE
 

firmware/hw_layer/adc/adc_inputs.cpp

@@ -166,6 +166,7 @@ static ADCConversionGroup adcgrpcfgSlow = {
 
 AdcDevice slowAdc(&adcgrpcfgSlow, slowAdcSampleBuf, ARRAY_SIZE(slowAdcSampleBuf));
 
+#if EFI_USE_FAST_ADC
 void adc_callback_fast(ADCDriver *adcp);
 
 static ADCConversionGroup adcgrpcfgFast = {
@@ -214,7 +215,6 @@ static ADCConversionGroup adcgrpcfgFast = {
 
 AdcDevice fastAdc(&adcgrpcfgFast, fastAdcSampleBuf, ARRAY_SIZE(fastAdcSampleBuf));
 
-#if HAL_USE_GPT
 static void fast_adc_callback(GPTDriver*) {
 #if EFI_INTERNAL_ADC
 	/*
@@ -240,7 +240,7 @@ static void fast_adc_callback(GPTDriver*) {
 	fastAdc.conversionCount++;
 #endif /* EFI_INTERNAL_ADC */
 }
-#endif /* HAL_USE_GPT */
+#endif // EFI_USE_FAST_ADC
 
 static float mcuTemperature;
 
@@ -259,7 +259,7 @@ int getInternalAdcValue(const char *msg, adc_channel_e hwChannel) {
 
 #endif /* EFI_ENABLE_MOCK_ADC */
 
-
+#if EFI_USE_FAST_ADC
 	if (adcHwChannelEnabled[hwChannel] == ADC_FAST) {
 		int internalIndex = fastAdc.internalAdcIndexByHardwareIndex[hwChannel];
 // todo if ADC_BUF_DEPTH_FAST EQ 1
@@ -267,6 +267,8 @@ int getInternalAdcValue(const char *msg, adc_channel_e hwChannel) {
 		int value = getAvgAdcValue(internalIndex, fastAdc.samples, ADC_BUF_DEPTH_FAST, fastAdc.size());
 		return value;
 	}
+#endif // EFI_USE_FAST_ADC
+
 	if (adcHwChannelEnabled[hwChannel] != ADC_SLOW) {
 	    // todo: make this not happen during hardware continuous integration
 		warning(CUSTOM_OBD_WRONG_ADC_MODE, "ADC is off [%s] index=%d", msg, hwChannel);
@@ -275,21 +277,25 @@ int getInternalAdcValue(const char *msg, adc_channel_e hwChannel) {
 	return slowAdc.getAdcValueByHwChannel(hwChannel);
 }
 
-#if HAL_USE_GPT
+#if EFI_USE_FAST_ADC
 static GPTConfig fast_adc_config = {
 	GPT_FREQ_FAST,
 	fast_adc_callback,
 	0, 0
 };
-#endif /* HAL_USE_GPT */
+#endif /* EFI_USE_FAST_ADC */
 
 adc_channel_mode_e getAdcMode(adc_channel_e hwChannel) {
 	if (slowAdc.isHwUsed(hwChannel)) {
 		return ADC_SLOW;
 	}
+
+#if EFI_USE_FAST_ADC
 	if (fastAdc.isHwUsed(hwChannel)) {
 		return ADC_FAST;
 	}
+#endif // EFI_USE_FAST_ADC
+
 	return ADC_OFF;
 }
 
@@ -368,6 +374,7 @@ adc_channel_e AdcDevice::getAdcHardwareIndexByInternalIndex(int index) const {
 }
 
 static void printFullAdcReport(Logging *logger) {
+#if EFI_USE_FAST_ADC
 	scheduleMsg(logger, "fast %d slow %d", fastAdc.conversionCount, slowAdc.conversionCount);
 
 	for (int index = 0; index < fastAdc.size(); index++) {
@@ -389,6 +396,7 @@ static void printFullAdcReport(Logging *logger) {
 			scheduleLogging(logger);
 		}
 	}
+#endif // EFI_USE_FAST_ADC
 
 	for (int index = 0; index < slowAdc.size(); index++) {
 		appendMsgPrefix(logger);
@@ -492,8 +500,15 @@ void addChannel(const char *name, adc_channel_e setting, adc_channel_mode_e mode
 
 	adcHwChannelEnabled[setting] = mode;
 
-	AdcDevice& dev = (mode == ADC_SLOW) ? slowAdc : fastAdc;
-	dev.enableChannelAndPin(name, setting);
+	AdcDevice* dev = &slowAdc;
+
+#if EFI_USE_FAST_ADC
+	if (mode == ADC_FAST) {
+		dev = &fastAdc;
+	}
+#endif
+
+	dev->enableChannelAndPin(name, setting);
 }
 
 void removeChannel(const char *name, adc_channel_e setting) {
@@ -581,14 +596,12 @@ void initAdcInputs() {
 	// Start the slow ADC thread
 	slowAdcController.Start();
 
+#if EFI_USE_FAST_ADC
 	fastAdc.init();
-	/*
-		* Initializes the PWM driver.
-		*/
-#if HAL_USE_GPT
+
 	gptStart(EFI_INTERNAL_FAST_ADC_GPT, &fast_adc_config);
 	gptStartContinuous(EFI_INTERNAL_FAST_ADC_GPT, GPT_PERIOD_FAST);
-#endif /* HAL_USE_GPT */
+#endif // EFI_USE_FAST_ADC
 
 	addConsoleActionI("adc", (VoidInt) printAdcValue);
 #else

firmware/hw_layer/ports/stm32/stm32_adc_v2.cpp

@@ -17,8 +17,10 @@ void portInitAdc() {
 	// Init slow ADC
 	adcStart(&ADCD1, NULL);
 
+#if EFI_USE_FAST_ADC
 	// Init fast ADC (MAP sensor)
 	adcStart(&ADCD2, NULL);
+#endif
 
 	// Enable internal temperature reference
 	adcSTM32EnableTSVREFE(); // Internal temperature sensor