Detailed Description

Position sensor hardware layer - PAL version.

todo: VVT implementation is a nasty copy-paste :(

see digital_input_icu.cp

Date: Dec 30, 2012

Author: Andrey Belomutskiy, (c) 2012-2021

Definition in file trigger_input_exti.cpp.

Functions
static void	shaft_callback (void *arg, efitick_t stamp)

static void	cam_callback (void *arg, efitick_t stamp)

int	extiTriggerTurnOnInputPin (const char *msg, int index, bool isTriggerShaft)

void	extiTriggerTurnOffInputPin (brain_pin_e brainPin)

Variables
static ioline_t	shaftLines [TRIGGER_INPUT_PIN_COUNT]

static ioline_t	camLines [CAM_INPUTS_COUNT]

Function Documentation

◆ cam_callback()

static void cam_callback	(	void *	arg,
		efitick_t	stamp
	)

static

Definition at line 39 of file trigger_input_exti.cpp.

                                                     {
    int index = (int)arg;
    ioline_t pal_line = camLines[index];
 
    bool rise = (palReadLine(pal_line) == PAL_HIGH);
 
    hwHandleVvtCamSignal(rise, stamp, index);
}

Referenced by extiTriggerTurnOnInputPin().

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◆ extiTriggerTurnOffInputPin()

void extiTriggerTurnOffInputPin ( brain_pin_e brainPin )

Definition at line 75 of file trigger_input_exti.cpp.

                                                      {
    efiExtiDisablePin(brainPin);
}

Referenced by turnOffTriggerInputPin().

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◆ extiTriggerTurnOnInputPin()

int extiTriggerTurnOnInputPin	(	const char *	msg,
		int	index,
		bool	isTriggerShaft
	)

Definition at line 52 of file trigger_input_exti.cpp.

                                                                               {
    brain_pin_e brainPin = isTriggerShaft ? engineConfiguration->triggerInputPins[index] : engineConfiguration->camInputs[index];
 
    efiPrintf("extiTriggerTurnOnInputPin %s %s", msg, hwPortname(brainPin));
 
    /* TODO:
     * * do not set to both edges if we need only one
     * * simplify callback in case of one edge */
    if (efiExtiEnablePin(msg, brainPin, PAL_EVENT_MODE_BOTH_EDGES,
        isTriggerShaft ? shaft_callback : cam_callback, (void *)index) < 0) {
        return -1;
    }
 
    ioline_t pal_line = PAL_LINE(getHwPort("trg", brainPin), getHwPin("trg", brainPin));
    if (isTriggerShaft) {
        shaftLines[index] = pal_line;
    } else {
        camLines[index] = pal_line;
    }
 
    return 0;
}

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◆ shaft_callback()

static void shaft_callback	(	void *	arg,
		efitick_t	stamp
	)

static

Definition at line 27 of file trigger_input_exti.cpp.

                                                       {
    // do the time sensitive things as early as possible!
    int index = (int)arg;
    ioline_t pal_line = shaftLines[index];
    bool rise = (palReadLine(pal_line) == PAL_HIGH);
 
    // todo: support for 3rd trigger input channel
    // todo: start using real event time from HW event, not just software timer?
 
    hwHandleShaftSignal(index, rise, stamp);
}