sent_hw_icu.cpp File Reference

Functions
static void	icuperiodcb (ICUDriver *icup, size_t index)
static void	icuovercapture (ICUDriver *icup, size_t index)
static void	icuperiodcb_in1 (ICUDriver *icup)
static void	icuovercapture_in1 (ICUDriver *icup)
void	startSent ()
void	stopSent ()

Variables
static uint16_t	lastPulse [SENT_INPUT_COUNT]
static bool	overcapture [SENT_INPUT_COUNT]
static ICUConfig	icucfg [SENT_INPUT_COUNT]

Function Documentation

icuovercapture()

static void icuovercapture ( ICUDriver *  icup, size_t  index  )

static

Definition at line 62 of file sent_hw_icu.cpp.

{
    UNUSED(icup);
    overcapture[index] = true;
}

Referenced by icuovercapture_in1().

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icuovercapture_in1()

static void icuovercapture_in1 ( ICUDriver *  icup )

static

Definition at line 74 of file sent_hw_icu.cpp.

{
    icuovercapture(icup, 0);
}

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icuperiodcb()

static void icuperiodcb ( ICUDriver *  icup, size_t  index  )

static

Definition at line 34 of file sent_hw_icu.cpp.

{
    uint16_t clocks;
    uint8_t flags = 0;
    const ICUConfig *icucfg = icup->config;
 
    if ((icucfg->channel == ICU_CHANNEL_1) || (icucfg->channel == ICU_CHANNEL_2)) {
        /* channel 1 and channel 2 supports period measurements */
        clocks = icuGetPeriodX(icup);
    } else {
        /* this is freerunnig timer and we need to calculate period using just captured timer value and previous one */
        /* TODO: support 32 bit timers too? */
        uint16_t val = icuGetWidthX(icup);
 
        /* can overflow */
        clocks = val - lastPulse[index];
 
        lastPulse[index] = val;
    }
 
    if (overcapture[index]) {
        flags |= SENT_FLAG_HW_OVERFLOW;
        overcapture[index] = false;
    }
 
    SENT_ISR_Handler(index, clocks, flags);
}

Referenced by icuperiodcb_in1().

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icuperiodcb_in1()

static void icuperiodcb_in1 ( ICUDriver *  icup )

static

Definition at line 69 of file sent_hw_icu.cpp.

{
    icuperiodcb(icup, 0);
}

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startSent()

void startSent

(

)

Definition at line 95 of file sent_hw_icu.cpp.

                 {
    for (int i = 0; i < SENT_INPUT_COUNT; i++) {
        brain_input_pin_e sentPin = engineConfiguration->sentInputPins[i];
 
        if (!isBrainPinValid(sentPin)) {
            continue;
        }
 
        ICUConfig *cfg = &icucfg[i];
        ICUDriver *icu;
        iomode_t pinAF;
        uint32_t baseClock;
 
        if (getIcuParams(sentPin, &pinAF, &icu, &cfg->channel, &baseClock) != true) {
            /* this pin has no ICU functionality or ICU driver is not enabled for TIM on this pin */
            criticalError("No ICU on selected SENT pin");
            continue;
        }
 
        efiSetPadMode("SENT", sentPin, PAL_MODE_ALTERNATE(pinAF));
 
        icuStart(icu, cfg);
        icuStartCapture(icu);
        icuEnableNotifications(icu);
    }
}

Referenced by applyNewHardwareSettings(), and initSent().

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stopSent()

void stopSent

(

)

Definition at line 122 of file sent_hw_icu.cpp.

                {
    for (int i = 0; i < SENT_INPUT_COUNT; i++) {
        brain_input_pin_e sentPin = activeConfiguration.sentInputPins[i];
 
        if (!isBrainPinValid(sentPin)) {
            continue;
        }
 
        ICUDriver *icu;
 
        if (getIcuParams(sentPin, NULL, &icu, NULL, NULL) != true) {
            /* this pin has no ICU functionality or ICU driver is not enabled for TIM on this pin */
            /* throw error? */
            continue;
        }
 
        icuDisableNotifications(icu);
        icuStopCapture(icu);
        icuStop(icu);
 
        efiSetPadUnused(sentPin);
    }
}

Referenced by applyNewHardwareSettings().

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Variable Documentation

icucfg

ICUConfig icucfg[SENT_INPUT_COUNT]

static

Initial value:

=
{
    {
        .mode = ICU_INPUT_ACTIVE_LOW,
        .frequency = SENT_ICU_FREQ,
        .width_cb = NULL,
        .period_cb = icuperiodcb_in1,
        .overflow_cb = NULL,
        .channel = ICU_CHANNEL_1,   
        .dier = 0U,
        .arr = 0xFFFFFFFFU,
        .overcapture_cb = icuovercapture_in1,
    }
}

Definition at line 80 of file sent_hw_icu.cpp.

{
    {
        .mode = ICU_INPUT_ACTIVE_LOW,
        .frequency = SENT_ICU_FREQ,
        .width_cb = NULL,
        .period_cb = icuperiodcb_in1,
        .overflow_cb = NULL,
        .channel = ICU_CHANNEL_1,   /* will be overwriten on startSent() */
        .dier = 0U,
        .arr = 0xFFFFFFFFU,
        .overcapture_cb = icuovercapture_in1,
    }
};

Referenced by icuperiodcb(), and startSent().

lastPulse

uint16_t lastPulse[SENT_INPUT_COUNT]

static

Definition at line 31 of file sent_hw_icu.cpp.

Referenced by icuperiodcb().

overcapture

bool overcapture[SENT_INPUT_COUNT]

static

Definition at line 32 of file sent_hw_icu.cpp.

Referenced by icuovercapture(), and icuperiodcb().

Go to the source code of this file.