digital_input_exti.h File Reference

Typedefs
using	ExtiCallback = void(*)(void *, efitick_t)

Functions
void	efiExtiInit ()
int	efiExtiEnablePin (const char *msg, brain_pin_e pin, uint32_t mode, ExtiCallback cb, void *cb_data)
void	efiExtiDisablePin (brain_pin_e brainPin)
uint8_t	getExtiOverflowCounter ()

Typedef Documentation

ExtiCallback

using ExtiCallback = void(*)(void*, efitick_t)

Definition at line 12 of file digital_input_exti.h.

Function Documentation

efiExtiDisablePin()

void efiExtiDisablePin

(

brain_pin_e

brainPin

)

Definition at line 78 of file digital_input_exti.cpp.

{
    /* paranoid check, in case of Gpio::Unassigned getHwPort will return NULL
     * and we will fail on next check */
    if (!isBrainPinValid(brainPin))
        return;
 
    ioportid_t port = getHwPort("exti", brainPin);
    if (port == NULL)
        return;
    brain_pin_markUnused(brainPin);
 
    int index = getHwPin("exti", brainPin);
 
    auto& channel = channels[index];
 
    /* is this index was used? */
    if (!channel.Callback) {
        return;
    }
 
    ioline_t line = PAL_LINE(port, index);
    palDisableLineEvent(line);
 
    /* mark unused */
    channel.Name = nullptr;
    channel.Callback = nullptr;
    channel.CallbackData = nullptr;
}

Referenced by adcTriggerTurnOffInputPin(), FrequencySensor::deInit(), HellaOilLevelSensor::deInit(), deInitFlexSensor(), detectHellenBoardId(), extiTriggerTurnOffInputPin(), HellenBoardIdFinder< NumPins >::measureChargingTimes(), nm_bsp_interrupt_ctrl(), and stopLogicAnalyzerPins().

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efiExtiEnablePin()

int efiExtiEnablePin	(	const char *	msg,
		brain_pin_e	pin,
		uint32_t	mode,
		ExtiCallback	cb,
		void *	cb_data
	)

Definition at line 38 of file digital_input_exti.cpp.

                                                                                                           {
    /* paranoid check, in case of Gpio::Unassigned getHwPort will return NULL
     * and we will fail on next check */
    if (!isBrainPinValid(brainPin)) {
        return -1;
    }
 
    criticalAssert(msg, "efiExtiEnablePin msg must not be null", -1);
 
    ioportid_t port = getHwPort(msg, brainPin);
    if (port == NULL) {
        return -1;
    }
 
    efiSetPadMode(msg, brainPin, PAL_MODE_INPUT);
 
    int index = getHwPin(msg, brainPin);
 
    auto& channel = channels[index];
 
    /* is this index already used? */
    if (channel.Callback) {
        firmwareError(ObdCode::CUSTOM_ERR_PIN_ALREADY_USED_2, "%s: pin %s/index %d: exti index already used by %s (stm32 limitation, cannot use those two pins as event inputs simultaneously)",
            msg,
            hwPortname(brainPin),
            index,
            channel.Name);
        return -1;
    }
 
    channel.Callback = cb;
    channel.CallbackData = cb_data;
    channel.Name = msg;
 
    ioline_t line = PAL_LINE(port, index);
    palEnableLineEvent(line, mode);
 
    return 0;
}

Referenced by adcTriggerTurnOnInputPin(), cdmIonInit(), extiTriggerTurnOnInputPin(), HellaOilLevelSensor::init(), initFlexSensor(), FrequencySensor::initIfValid(), initWave(), HellenBoardIdFinder< NumPins >::measureChargingTimes(), and nm_bsp_interrupt_ctrl().

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efiExtiInit()

void efiExtiInit

(

)

EXTI is a funny thing: you can only use same pin on one port. For example, you can use PA0 PB5 PE2 PD7 but you cannot use PA0 PB0 PE2 PD7 because pin '0' would be used on two different ports

Definition at line 22 of file digital_input_exti.cpp.

                   {
    nvicEnableVector(I2C1_EV_IRQn, STM32_I2C_I2C1_IRQ_PRIORITY);
}

Referenced by initHardwareNoConfig().

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getExtiOverflowCounter()

uint8_t getExtiOverflowCounter

(

)

Definition at line 196 of file digital_input_exti.cpp.

                                 {
    return overflowCounter;
}

Referenced by updateTunerStudioState().

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