mirror of https://github.com/rusefi/rusefi-1.git
107 lines
3.1 KiB
C++
107 lines
3.1 KiB
C++
/**
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* @file trigger_input_exti.cpp
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* @brief Position sensor hardware layer - PAL version
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*
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* todo: VVT implementation is a nasty copy-paste :(
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*
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* see digital_input_icu.cp
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*
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* @date Dec 30, 2012
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* @author Andrey Belomutskiy, (c) 2012-2020
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*/
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#include "global.h"
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#if EFI_SHAFT_POSITION_INPUT && (HAL_TRIGGER_USE_PAL == TRUE)
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#include "trigger_input.h"
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#include "digital_input_exti.h"
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#if (PAL_USE_CALLBACKS == FALSE)
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#error "PAL_USE_CALLBACKS should be enabled to use HAL_TRIGGER_USE_PAL"
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#endif
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extern bool hasFirmwareErrorFlag;
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static Logging *logger;
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EXTERN_ENGINE;
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static ioline_t primary_line;
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static void shaft_callback(void *arg) {
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// do the time sensitive things as early as possible!
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efitick_t stamp = getTimeNowNt();
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ioline_t pal_line = (ioline_t)arg;
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bool rise = (palReadLine(pal_line) == PAL_HIGH);
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// todo: support for 3rd trigger input channel
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// todo: start using real event time from HW event, not just software timer?
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if (hasFirmwareErrorFlag)
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return;
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bool isPrimary = pal_line == primary_line;
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if (!isPrimary && !TRIGGER_WAVEFORM(needSecondTriggerInput)) {
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return;
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}
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trigger_event_e signal;
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// todo: add support for 3rd channel
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if (rise) {
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signal = isPrimary ?
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(engineConfiguration->invertPrimaryTriggerSignal ? SHAFT_PRIMARY_FALLING : SHAFT_PRIMARY_RISING) :
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(engineConfiguration->invertSecondaryTriggerSignal ? SHAFT_SECONDARY_FALLING : SHAFT_SECONDARY_RISING);
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} else {
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signal = isPrimary ?
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(engineConfiguration->invertPrimaryTriggerSignal ? SHAFT_PRIMARY_RISING : SHAFT_PRIMARY_FALLING) :
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(engineConfiguration->invertSecondaryTriggerSignal ? SHAFT_SECONDARY_RISING : SHAFT_SECONDARY_FALLING);
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}
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hwHandleShaftSignal(signal, stamp);
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}
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static void cam_callback(void *arg) {
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efitick_t stamp = getTimeNowNt();
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ioline_t pal_line = (ioline_t)arg;
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bool rise = (palReadLine(pal_line) == PAL_HIGH);
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if (rise) {
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hwHandleVvtCamSignal(TV_RISE, stamp);
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} else {
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hwHandleVvtCamSignal(TV_FALL, stamp);
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}
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}
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/*==========================================================================*/
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/* Exported functions. */
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/*==========================================================================*/
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int extiTriggerTurnOnInputPin(const char *msg, int index, bool isTriggerShaft) {
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brain_pin_e brainPin = isTriggerShaft ? CONFIG(triggerInputPins)[index] : engineConfiguration->camInputs[index];
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scheduleMsg(logger, "extiTriggerTurnOnInputPin %s %s", msg, hwPortname(brainPin));
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/* TODO:
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* * do not set to both edges if we need only one
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* * simplify callback in case of one edge */
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ioline_t pal_line = PAL_LINE(getHwPort("trg", brainPin), getHwPin("trg", brainPin));
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efiExtiEnablePin(msg, brainPin, PAL_EVENT_MODE_BOTH_EDGES, isTriggerShaft ? shaft_callback : cam_callback, (void *)pal_line);
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return 0;
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}
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void extiTriggerTurnOffInputPin(brain_pin_e brainPin) {
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efiExtiDisablePin(brainPin);
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}
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void extiTriggerSetPrimaryChannel(brain_pin_e brainPin) {
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primary_line = PAL_LINE(getHwPort("trg", brainPin), getHwPin("trg", brainPin));
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}
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void extiTriggerTurnOnInputPins(Logging *sharedLogger) {
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logger = sharedLogger;
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}
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#endif /* (EFI_SHAFT_POSITION_INPUT && (HAL_TRIGGER_USE_PAL == TRUE)) */
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