diff --git a/firmware/console/status_loop.cpp b/firmware/console/status_loop.cpp
index d122aa81b4..920c0c916a 100644
--- a/firmware/console/status_loop.cpp
+++ b/firmware/console/status_loop.cpp
@@ -937,7 +937,7 @@ void updateTunerStudioState(TunerStudioOutputChannels *tsOutputChannels DECLARE_
 		tsOutputChannels->debugIntField1 = engine->triggerCentral.getHwEventCounter((int)SHAFT_PRIMARY_FALLING);
 		tsOutputChannels->debugIntField2 = engine->triggerCentral.getHwEventCounter((int)SHAFT_SECONDARY_FALLING);
 		tsOutputChannels->debugIntField3 = engine->triggerCentral.getHwEventCounter((int)SHAFT_3RD_FALLING);
-#if EFI_PROD_CODE
+#if EFI_PROD_CODE && HAL_USE_ICU == TRUE
 		tsOutputChannels->debugIntField4 = engine->triggerCentral.vvtEventRiseCounter;
 		tsOutputChannels->debugIntField5 = engine->triggerCentral.vvtEventFallCounter;
 		tsOutputChannels->debugFloatField5 = icuWidthCallbackCounter + icuWidthPeriodCounter;
diff --git a/firmware/controllers/algo/engine.h b/firmware/controllers/algo/engine.h
index f2c69a408b..7f8693f9e0 100644
--- a/firmware/controllers/algo/engine.h
+++ b/firmware/controllers/algo/engine.h
@@ -62,6 +62,11 @@ public:
 	 */
 	int globalSparkIdCounter = 0;
 
+	// this is useful at least for real hardware integration testing - maybe a proper solution would be to simply
+	// GND input pins instead of leaving them floating
+	bool hwTriggerInputEnabled = true;
+
+
 #if !EFI_PROD_CODE
 	float mockMapValue = 0;
 	// for historical reasons we have options to mock TPS on different layers :(
diff --git a/firmware/controllers/settings.cpp b/firmware/controllers/settings.cpp
index 96e14acd65..98cca9c5e6 100644
--- a/firmware/controllers/settings.cpp
+++ b/firmware/controllers/settings.cpp
@@ -887,13 +887,11 @@ static void setSpiMode(int index, bool mode) {
 	printSpiState(&logger, boardConfiguration);
 }
 
-extern bool hwTriggerInputEnabled;
-
 static void enableOrDisable(const char *param, bool isEnabled) {
 	if (strEqualCaseInsensitive(param, "fastadc")) {
 		boardConfiguration->isFastAdcEnabled = isEnabled;
 	} else if (strEqualCaseInsensitive(param, CMD_TRIGGER_HW_INPUT)) {
-		hwTriggerInputEnabled = isEnabled;
+		engine->hwTriggerInputEnabled = isEnabled;
 	} else if (strEqualCaseInsensitive(param, "etb_auto")) {
 		engine->etbAutoTune = isEnabled;
 	} else if (strEqualCaseInsensitive(param, "cranking_constant_dwell")) {
diff --git a/firmware/controllers/trigger/trigger_central.cpp b/firmware/controllers/trigger/trigger_central.cpp
index 4545925e4f..3374fd0d1b 100644
--- a/firmware/controllers/trigger/trigger_central.cpp
+++ b/firmware/controllers/trigger/trigger_central.cpp
@@ -511,7 +511,6 @@ extern int perSecondIrqCounter;
 
 #if EFI_PROD_CODE
 extern uint32_t maxPrecisionCallbackDuration;
-extern bool hwTriggerInputEnabled;
 #endif /* EFI_PROD_CODE  */
 
 extern uint32_t maxSchedulingPrecisionLoss;
@@ -545,11 +544,11 @@ void triggerInfo(void) {
 
 
 #if (HAL_TRIGGER_USE_PAL == TRUE) && (PAL_USE_CALLBACKS == TRUE)
-		scheduleMsg(logger, "trigger PAL mode %d", hwTriggerInputEnabled);
+		scheduleMsg(logger, "trigger PAL mode %d", engine->hwTriggerInputEnabled);
 #else
 
 #if HAL_USE_ICU == TRUE
-	scheduleMsg(logger, "trigger ICU hw: %d %d %d", icuWidthCallbackCounter, icuWidthPeriodCounter, hwTriggerInputEnabled);
+	scheduleMsg(logger, "trigger ICU hw: %d %d %d", icuWidthCallbackCounter, icuWidthPeriodCounter, engine->hwTriggerInputEnabled);
 #endif /* HAL_USE_ICU */
 
 #endif /* HAL_TRIGGER_USE_PAL */
diff --git a/firmware/hw_layer/trigger_input.cpp b/firmware/hw_layer/trigger_input.cpp
index 11bcf46c99..ec10a36a03 100644
--- a/firmware/hw_layer/trigger_input.cpp
+++ b/firmware/hw_layer/trigger_input.cpp
@@ -10,6 +10,41 @@
 
 #if (EFI_PROD_CODE && EFI_SHAFT_POSITION_INPUT) || defined(__DOXYGEN__)
 
+EXTERN_ENGINE;
+
+#if (HAL_USE_ICU == TRUE) || (HAL_TRIGGER_USE_PAL == TRUE)
+void stopTriggerInputPins(void) {
+	for (int i = 0; i < TRIGGER_SUPPORTED_CHANNELS; i++) {
+		if (isConfigurationChanged(bc.triggerInputPins[i])) {
+			turnOffTriggerInputPin(activeConfiguration.bc.triggerInputPins[i]);
+		}
+	}
+	for (int i = 0; i < CAM_INPUTS_COUNT; i++) {
+		if (isConfigurationChanged(camInputs[i])) {
+			turnOffTriggerInputPin(activeConfiguration.camInputs[i]);
+		}
+	}
+}
+
+void startTriggerInputPins(void) {
+	for (int i = 0; i < TRIGGER_SUPPORTED_CHANNELS; i++) {
+		if (isConfigurationChanged(bc.triggerInputPins[i])) {
+			const char * msg = (i == 0 ? "trigger#1" : (i == 1 ? "trigger#2" : "trigger#3"));
+			turnOnTriggerInputPin(msg, CONFIGB(triggerInputPins)[i], true);
+		}
+	}
+
+	for (int i = 0; i < CAM_INPUTS_COUNT; i++) {
+		if (isConfigurationChanged(camInputs[i])) {
+			turnOnTriggerInputPin("cam", engineConfiguration->camInputs[i], false);
+		}
+	}
+
+	setPrimaryChannel(CONFIGB(triggerInputPins)[0]);
+}
+#endif
+
+
 void applyNewTriggerInputPins(void) {
 	// first we will turn off all the changed pins
 	stopTriggerInputPins();
diff --git a/firmware/hw_layer/trigger_input.h b/firmware/hw_layer/trigger_input.h
index aacdcd6132..cf7c44422c 100644
--- a/firmware/hw_layer/trigger_input.h
+++ b/firmware/hw_layer/trigger_input.h
@@ -3,13 +3,16 @@
  * @brief	Position sensor hardware layer
  *
  * @date Dec 30, 2012
- * @author Andrey Belomutskiy, (c) 2012-2017
+ * @author Andrey Belomutskiy, (c) 2012-2019
  */
 
 #ifndef CRANK_INPUT_H_
 #define CRANK_INPUT_H_
 
 #include "engine.h"
+#include "pin_repository.h"
+#include "trigger_structure.h"
+#include "trigger_central.h"
 
 #define TRIGGER_SUPPORTED_CHANNELS 2
 
@@ -17,5 +20,8 @@ void turnOnTriggerInputPins(Logging *sharedLogger);
 void applyNewTriggerInputPins(void);
 void startTriggerInputPins(void);
 void stopTriggerInputPins(void);
+void setPrimaryChannel(brain_pin_e brainPin);
+void turnOffTriggerInputPin(brain_pin_e brainPin);
+int turnOnTriggerInputPin(const char *msg, brain_pin_e brainPin, bool isVvtShaft);
 
 #endif /* CRANK_INPUT_H_ */
diff --git a/firmware/hw_layer/trigger_input_comp.cpp b/firmware/hw_layer/trigger_input_comp.cpp
index 048f528829..c032d9e3f6 100644
--- a/firmware/hw_layer/trigger_input_comp.cpp
+++ b/firmware/hw_layer/trigger_input_comp.cpp
@@ -15,10 +15,7 @@
 
 #include "trigger_input.h"
 #include "digital_input_hw.h"
-#include "pin_repository.h"
-#include "trigger_structure.h"
-#include "trigger_central.h"
-#include "engine_configuration.h"
+
 
 extern bool hasFirmwareErrorFlag;
 
diff --git a/firmware/hw_layer/trigger_input_exti.cpp b/firmware/hw_layer/trigger_input_exti.cpp
index 521fa61a52..92e8032097 100644
--- a/firmware/hw_layer/trigger_input_exti.cpp
+++ b/firmware/hw_layer/trigger_input_exti.cpp
@@ -14,4 +14,78 @@
 
 #if EFI_SHAFT_POSITION_INPUT && (HAL_TRIGGER_USE_PAL == TRUE) && (HAL_USE_COMP == FALSE)
 
+#include "trigger_input.h"
+#include "digital_input_exti.h"
+
+extern bool hasFirmwareErrorFlag;
+
+static Logging *logger;
+
+EXTERN_ENGINE;
+static ioline_t primary_line;
+
+static void shaft_callback(void *arg) {
+	ioline_t pal_line = (ioline_t)arg;
+	// todo: support for 3rd trigger input channel
+	// todo: start using real event time from HW event, not just software timer?
+	if (hasFirmwareErrorFlag)
+		return;
+
+	bool isPrimary = pal_line == primary_line;
+	if (!isPrimary && !TRIGGER_SHAPE(needSecondTriggerInput)) {
+		return;
+	}
+
+	bool rise = (palReadLine(pal_line) == PAL_HIGH);
+	trigger_event_e signal;
+	// todo: add support for 3rd channel
+	if (rise) {
+		signal = isPrimary ?
+					(engineConfiguration->invertPrimaryTriggerSignal ? SHAFT_PRIMARY_FALLING : SHAFT_PRIMARY_RISING) :
+					(engineConfiguration->invertSecondaryTriggerSignal ? SHAFT_SECONDARY_FALLING : SHAFT_SECONDARY_RISING);
+	} else {
+		signal = isPrimary ?
+					(engineConfiguration->invertPrimaryTriggerSignal ? SHAFT_PRIMARY_RISING : SHAFT_PRIMARY_FALLING) :
+					(engineConfiguration->invertSecondaryTriggerSignal ? SHAFT_SECONDARY_RISING : SHAFT_SECONDARY_FALLING);
+	}
+
+	hwHandleShaftSignal(signal);
+}
+
+static void cam_callback(void *arg) {
+	ioline_t pal_line = (ioline_t)arg;
+
+	bool rise = (palReadLine(pal_line) == PAL_HIGH);
+
+	if (rise) {
+		hwHandleVvtCamSignal(TV_RISE);
+	} else {
+		hwHandleVvtCamSignal(TV_FALL);
+	}
+}
+
+int turnOnTriggerInputPin(const char *msg, brain_pin_e brainPin, bool isVvtShaft) {
+	scheduleMsg(logger, "turnOnTriggerInputPin(PAL) %s %s", msg, hwPortname(brainPin));
+
+	/* TODO:
+	 * * do not set to both edges if we need only one
+	 * * simplify callback in case of one edge */
+	ioline_t pal_line = PAL_LINE(getHwPort("trg", brainPin), getHwPin("trg", brainPin));
+	return efiExtiEnablePin(msg, brainPin, PAL_EVENT_MODE_BOTH_EDGES, isVvtShaft ? shaft_callback : cam_callback, (void *)pal_line);
+}
+
+void turnOffTriggerInputPin(brain_pin_e brainPin) {
+	efiExtiDisablePin(brainPin);
+}
+
+void setPrimaryChannel(brain_pin_e brainPin) {
+	primary_line = PAL_LINE(getHwPort("trg", brainPin), getHwPin("trg", brainPin));
+}
+
+void turnOnTriggerInputPins(Logging *sharedLogger) {
+	logger = sharedLogger;
+
+	applyNewTriggerInputPins();
+}
+
 #endif /* (EFI_SHAFT_POSITION_INPUT && (HAL_TRIGGER_USE_PAL == TRUE) && (HAL_USE_COMP == FALSE)) */
diff --git a/firmware/hw_layer/trigger_input_icu.cpp b/firmware/hw_layer/trigger_input_icu.cpp
index b1a00ec102..9992b87a8e 100644
--- a/firmware/hw_layer/trigger_input_icu.cpp
+++ b/firmware/hw_layer/trigger_input_icu.cpp
@@ -1,6 +1,6 @@
 /**
  * @file	trigger_input_icu.cpp
- * @brief	Position sensor hardware layer (ICU and PAL drivers)
+ * @brief	Position sensor hardware layer - ICU version
  *
  * todo: code reuse with digital_input_hw.cpp was never finished
  * todo: at the moment due to half-done code reuse we already depend on EFI_ICU_INPUTS but still have custom code
@@ -16,93 +16,18 @@
 
 volatile int icuWidthCallbackCounter = 0;
 volatile int icuWidthPeriodCounter = 0;
-bool hwTriggerInputEnabled = true; // this is useful at least for real hardware integration testing
 
-#if EFI_SHAFT_POSITION_INPUT && (HAL_TRIGGER_USE_PAL == TRUE || HAL_USE_ICU == TRUE) && (HAL_USE_COMP == FALSE)
+#if EFI_SHAFT_POSITION_INPUT && (HAL_USE_ICU == TRUE) && (HAL_USE_COMP == FALSE)
 
 #include "trigger_input.h"
 #include "digital_input_hw.h"
-#include "digital_input_exti.h"
-#include "pin_repository.h"
-#include "trigger_structure.h"
-#include "trigger_central.h"
-#include "engine_configuration.h"
+
+EXTERN_ENGINE;
 
 extern bool hasFirmwareErrorFlag;
 
-EXTERN_ENGINE
-;
 static Logging *logger;
 
-#if EFI_PROD_CODE
-/* PAL based implementation */
-#if (HAL_TRIGGER_USE_PAL == TRUE) && (PAL_USE_CALLBACKS == TRUE)
-
-/* static variables for PAL implementation */
-static ioline_t primary_line;
-
-static void shaft_callback(void *arg) {
-	ioline_t pal_line = (ioline_t)arg;
-	// todo: support for 3rd trigger input channel
-	// todo: start using real event time from HW event, not just software timer?
-	if (hasFirmwareErrorFlag)
-		return;
-
-	bool isPrimary = pal_line == primary_line;
-	if (!isPrimary && !TRIGGER_SHAPE(needSecondTriggerInput)) {
-		return;
-	}
-
-	bool rise = (palReadLine(pal_line) == PAL_HIGH);
-	trigger_event_e signal;
-	// todo: add support for 3rd channel
-	if (rise) {
-		signal = isPrimary ?
-					(engineConfiguration->invertPrimaryTriggerSignal ? SHAFT_PRIMARY_FALLING : SHAFT_PRIMARY_RISING) :
-					(engineConfiguration->invertSecondaryTriggerSignal ? SHAFT_SECONDARY_FALLING : SHAFT_SECONDARY_RISING);
-	} else {
-		signal = isPrimary ?
-					(engineConfiguration->invertPrimaryTriggerSignal ? SHAFT_PRIMARY_RISING : SHAFT_PRIMARY_FALLING) :
-					(engineConfiguration->invertSecondaryTriggerSignal ? SHAFT_SECONDARY_RISING : SHAFT_SECONDARY_FALLING);
-	}
-
-	hwHandleShaftSignal(signal);
-}
-
-static void cam_callback(void *arg) {
-	ioline_t pal_line = (ioline_t)arg;
-
-	bool rise = (palReadLine(pal_line) == PAL_HIGH);
-
-	if (rise) {
-		hwHandleVvtCamSignal(TV_RISE);
-	} else {
-		hwHandleVvtCamSignal(TV_FALL);
-	}
-}
-
-static int turnOnTriggerInputPin(const char *msg, brain_pin_e brainPin, bool is_shaft) {
-	scheduleMsg(logger, "turnOnTriggerInputPin(PAL) %s %s", msg, hwPortname(brainPin));
-
-	/* TODO:
-	 * * do not set to both edges if we need only one
-	 * * simplify callback in case of one edge */
-	ioline_t pal_line = PAL_LINE(getHwPort("trg", brainPin), getHwPin("trg", brainPin));
-	return efiExtiEnablePin(msg, brainPin, PAL_EVENT_MODE_BOTH_EDGES, is_shaft ? shaft_callback : cam_callback, (void *)pal_line);
-}
-
-static void turnOffTriggerInputPin(brain_pin_e brainPin) {
-	efiExtiDisablePin(brainPin);
-}
-
-static void setPrimaryChannel(brain_pin_e brainPin) {
-	primary_line = PAL_LINE(getHwPort("trg", brainPin), getHwPin("trg", brainPin));
-}
-
-/* ICU based implementation */
-#elif (HAL_USE_ICU)
-
-/* static vars for ICU implementation */
 static ICUDriver *primaryCrankDriver;
 
 static void cam_icu_width_callback(ICUDriver *icup) {
@@ -120,7 +45,7 @@ static void cam_icu_period_callback(ICUDriver *icup) {
  * 'width' events happens before the 'period' event
  */
 static void shaft_icu_width_callback(ICUDriver *icup) {
-	if (!hwTriggerInputEnabled) {
+	if (!engine->hwTriggerInputEnabled) {
 		return;
 	}
 	icuWidthCallbackCounter++;
@@ -140,7 +65,7 @@ static void shaft_icu_width_callback(ICUDriver *icup) {
 }
 
 static void shaft_icu_period_callback(ICUDriver *icup) {
-	if (!hwTriggerInputEnabled) {
+	if (!engine->hwTriggerInputEnabled) {
 		return;
 	}
 	icuWidthPeriodCounter++;
@@ -180,14 +105,14 @@ static ICUConfig cam_icucfg = { ICU_INPUT_ACTIVE_LOW,
                                 ICU_CHANNEL_1,
                                 0};
 
-static int turnOnTriggerInputPin(const char *msg, brain_pin_e brainPin, bool is_shaft) {
+int turnOnTriggerInputPin(const char *msg, brain_pin_e brainPin, bool isVvtShaft) {
 	ICUConfig *icucfg;
 
 	if (brainPin == GPIO_UNASSIGNED) {
 		return -1;
 	}
 
-	if (is_shaft) {
+	if (isVvtShaft) {
 		icucfg = &shaft_icucfg;
 	} else {
 		icucfg = &cam_icucfg;
@@ -222,7 +147,7 @@ static int turnOnTriggerInputPin(const char *msg, brain_pin_e brainPin, bool is_
 	return 0;
 }
 
-static void turnOffTriggerInputPin(brain_pin_e brainPin) {
+void turnOffTriggerInputPin(brain_pin_e brainPin) {
 	ICUDriver *driver = getInputCaptureDriver("trigger_off", brainPin);
 	if (driver != NULL) {
         icuDisableNotifications(driver);
@@ -233,13 +158,10 @@ static void turnOffTriggerInputPin(brain_pin_e brainPin) {
 	}
 }
 
-static void setPrimaryChannel(brain_pin_e brainPin) {
+void setPrimaryChannel(brain_pin_e brainPin) {
 	primaryCrankDriver = getInputCaptureDriver("primary", brainPin);
 }
 
-#endif /* HAL_USE_ICU */
-#endif /* EFI_PROD_CODE */
-
 /*==========================================================================*/
 /* Exported functions.														*/
 /*==========================================================================*/
@@ -249,39 +171,4 @@ void turnOnTriggerInputPins(Logging *sharedLogger) {
 
 	applyNewTriggerInputPins();
 }
-
-void stopTriggerInputPins(void) {
-#if EFI_PROD_CODE
-	for (int i = 0; i < TRIGGER_SUPPORTED_CHANNELS; i++) {
-		if (isConfigurationChanged(bc.triggerInputPins[i])) {
-			turnOffTriggerInputPin(activeConfiguration.bc.triggerInputPins[i]);
-		}
-	}
-	for (int i = 0; i < CAM_INPUTS_COUNT; i++) {
-		if (isConfigurationChanged(camInputs[i])) {
-			turnOffTriggerInputPin(activeConfiguration.camInputs[i]);
-		}
-	}
-#endif /* EFI_PROD_CODE */
-}
-
-void startTriggerInputPins(void) {
-#if EFI_PROD_CODE
-	for (int i = 0; i < TRIGGER_SUPPORTED_CHANNELS; i++) {
-		if (isConfigurationChanged(bc.triggerInputPins[i])) {
-			const char * msg = (i == 0 ? "trigger#1" : (i == 1 ? "trigger#2" : "trigger#3"));
-			turnOnTriggerInputPin(msg, CONFIGB(triggerInputPins)[i], true);
-		}
-	}
-
-	for (int i = 0; i < CAM_INPUTS_COUNT; i++) {
-		if (isConfigurationChanged(camInputs[i])) {
-			turnOnTriggerInputPin("cam", engineConfiguration->camInputs[i], false);
-		}
-	}
-
-	setPrimaryChannel(CONFIGB(triggerInputPins)[0]);
-#endif /* EFI_PROD_CODE */
-}
-
-#endif /* (EFI_SHAFT_POSITION_INPUT && (HAL_TRIGGER_USE_PAL == TRUE || HAL_USE_ICU == TRUE) && (HAL_USE_COMP == FALSE)) */
+#endif /* (EFI_SHAFT_POSITION_INPUT && (HAL_USE_ICU == TRUE) && (HAL_USE_COMP == FALSE)) */