distinguish between "timestamp" and "duration"

firmware/controllers/algo/engine_parts.h

@@ -70,7 +70,7 @@ public:
 
 struct multispark_state
 {
-	efitick_t delay = 0;
+	efidur_t delay = 0;
-	efitick_t dwell = 0;
+	efidur_t dwell = 0;
 	uint8_t count = 0;
 };

firmware/controllers/algo/rusefi_types.h

@@ -42,6 +42,8 @@
  */
 using efitimems_t = uint32_t;
 
+using efidur_t = efitick_t;
+
 // date-time struct a la ctime struct tm
 typedef struct {
 	uint32_t year = 0;

firmware/controllers/engine_cycle/map_averaging.h

@@ -32,7 +32,7 @@ void postMapState(TunerStudioOutputChannels *tsOutputChannels);
 
 class MapAverager : public StoredValueSensor {
 public:
-	MapAverager(SensorType type, efitick_t timeout)
+	MapAverager(SensorType type, efidur_t timeout)
 		: StoredValueSensor(type, timeout)
 	{
 	}

firmware/controllers/sensors/can_sensor.h

@@ -19,7 +19,7 @@
  */
 class CanSensorBase : public StoredValueSensor, public CanListener {
 public:
-	CanSensorBase(uint32_t eid, SensorType type, efitick_t timeout)
+	CanSensorBase(uint32_t eid, SensorType type, efidur_t timeout)
 		: StoredValueSensor(type, timeout)
 		, CanListener(eid)
 	{
@@ -31,7 +31,7 @@ public:
 template <typename TStorage, int TScale>
 class CanSensor : public CanSensorBase {
 public:
-	CanSensor(uint32_t eid, uint8_t offset, SensorType type, efitick_t timeout)
+	CanSensor(uint32_t eid, uint8_t offset, SensorType type, efidur_t timeout)
 		: CanSensorBase(eid, type, timeout)
 		, m_offset(offset)
 	{

firmware/controllers/sensors/core/functional_sensor.h

@@ -25,7 +25,7 @@
  */
 class FunctionalSensor : public StoredValueSensor {
 public:
-	FunctionalSensor(SensorType type, efitick_t timeoutPeriod)
+	FunctionalSensor(SensorType type, efidur_t timeoutPeriod)
 		: StoredValueSensor(type, timeoutPeriod) { }
 
 	void postRawValue(float inputValue, efitick_t timestamp);

firmware/controllers/sensors/core/stored_value_sensor.h

@@ -51,7 +51,7 @@ public:
 		return result;
 	}
 
-	StoredValueSensor(SensorType type, efitick_t timeoutNt)
+	StoredValueSensor(SensorType type, efidur_t timeoutNt)
 		: Sensor(type)
 		, m_result(unexpected)
 		, m_timeoutPeriod(timeoutNt)
@@ -84,6 +84,6 @@ public:
 private:
 	SensorResult m_result;
 
-	efitick_t m_timeoutPeriod;
+	efidur_t m_timeoutPeriod;
 	efitick_t m_lastUpdate = 0;
 };

firmware/controllers/sensors/frequency_sensor.h

@@ -7,7 +7,7 @@
 
 class FrequencySensor : public FunctionalSensor {
 public:
-	FrequencySensor(SensorType type, efitick_t timeoutPeriod)
+	FrequencySensor(SensorType type, efidur_t timeoutPeriod)
 		: FunctionalSensor(type, timeoutPeriod)
 	{ }
 

firmware/controllers/system/timer/event_queue.cpp

@@ -21,7 +21,7 @@ extern int timeNowUs;
 extern bool verboseMode;
 #endif /* EFI_UNIT_TEST */
 
-EventQueue::EventQueue(efitick_t lateDelay)
+EventQueue::EventQueue(efidur_t lateDelay)
 	: m_lateDelay(lateDelay)
 {
 	for (size_t i = 0; i < efi::size(m_pool); i++) {

firmware/controllers/system/timer/event_queue.h

@@ -44,7 +44,7 @@ public:
 	// See comment in EventQueue::executeAll for info about lateDelay - it sets the
 	// time gap between events for which we will wait instead of rescheduling the next
 	// event in a group of events near one another.
-	explicit EventQueue(efitick_t lateDelay = 0);
+	explicit EventQueue(efidur_t lateDelay = 0);
 
 	/**
 	 * O(size) - linear search in sorted linked list
@@ -69,7 +69,7 @@ private:
 	 * this list is sorted
 	 */
 	scheduling_s *m_head = nullptr;
-	const efitick_t m_lateDelay;
+	const efidur_t m_lateDelay;
 
 	scheduling_s* m_freelist = nullptr;
 	scheduling_s m_pool[64];

firmware/controllers/system/timer/single_timer_executor.cpp

@@ -67,7 +67,7 @@ void SingleTimerExecutor::scheduleByTimestampNt(const char *msg, scheduling_s* s
 	ScopePerf perf(PE::SingleTimerExecutorScheduleByTimestamp);
 
 #if EFI_ENABLE_ASSERTS
-	efitick_t deltaTimeNt = nt - getTimeNowNt();
+	efidur_t deltaTimeNt = nt - getTimeNowNt();
 
 	if (deltaTimeNt >= TOO_FAR_INTO_FUTURE_NT) {
 		// we are trying to set callback for too far into the future. This does not look right at all

firmware/controllers/trigger/trigger_decoder.cpp

@@ -71,7 +71,7 @@ void TriggerDecoderBase::resetState() {
 	m_timeSinceDecodeError.init();
 
 	prevSignal = SHAFT_PRIMARY_FALLING;
-	startOfCycleNt = 0;
+	startOfCycleNt = {};
 
 	resetCurrentCycleState();
 
@@ -406,7 +406,7 @@ expected<TriggerDecodeResult> TriggerDecoderBase::decodeTriggerEvent(
 		firmwareError(ObdCode::CUSTOM_OBD_93, "[%s] toothed_previous_time after nowNt prev=%d now=%d", msg, toothed_previous_time, nowNt);
 	}
 
-	efitick_t currentDurationLong = isFirstEvent ? 0 : nowNt - toothed_previous_time;
+	efidur_t currentDurationLong = isFirstEvent ? 0 : (nowNt - toothed_previous_time);
 
 	/**
 	 * For performance reasons, we want to work with 32 bit values. If there has been more then

firmware/hw_layer/debounce.h

@@ -27,7 +27,7 @@ public:
     bool getPhysicalState();
 private:
     const char* const m_name;
-    efitick_t m_threshold;
+    efidur_t m_threshold;
     Timer timeLast;
     brain_pin_e *m_pin;
     brain_pin_e active_pin = Gpio::Unassigned;

firmware/hw_layer/digital_input/trigger/trigger_input_adc.h

@@ -43,8 +43,8 @@ public:
 
 	// these thresholds allow to switch from ADC mode (low-rpm) to EXTI mode (fast-rpm), indicating the clamping of the signal 
 	triggerAdcSample_t switchingThresholdLow = 0, switchingThresholdHigh = 0;
-	efitick_t minDeltaTimeForStableAdcDetectionNt = 0;
+	efidur_t minDeltaTimeForStableAdcDetectionNt = 0;
-	efitick_t stampCorrectionForAdc = 0;
+	efidur_t stampCorrectionForAdc = 0;
 	int switchingCnt = 0, switchingTeethCnt = 0;
 	int prevValue = 0;	// not set
 	efitick_t prevStamp = 0;

firmware/util/peak_detect.h

@@ -5,7 +5,7 @@
 /**
  * Stores the recent peak value, preventing loss of intermittent peaks in a signal.
  */
-template <typename TValue, efitick_t TTimeoutPeriod>
+template <typename TValue, efidur_t TTimeoutPeriod>
 class PeakDetect {
 public:
 	TValue detect(TValue currentValue, efitick_t nowNt) {