adc_onchip_fast.cpp File Reference

Functions
static void	fastAdcDoneCB (ADCDriver *adcp)
static void	fastAdcErrorCB (ADCDriver *, adcerror_t err)
static void	fastAdcStartTrigger (GPTDriver *)

Variables
static ADCConversionGroup	adcgrpcfgFast
static volatile NO_CACHE adcsample_t	fastAdcSampleBuf [ADC_BUF_DEPTH_FAST *ADC_MAX_CHANNELS_COUNT]
AdcDevice fastAdc &	ADC_FAST_DEVICE
static efitick_t	lastTick = 0
static const PWMConfig	pwmcfg
static const GPTConfig	fast_adc_config

Function Documentation

fastAdcDoneCB()

static void fastAdcDoneCB ( ADCDriver *  adcp )

static

Definition at line 134 of file adc_onchip_fast.cpp.

                                           {
    // State may not be complete if we get a callback for "half done"
    if (adcIsBufferComplete(adcp)) {
        efitick_t nowTick = getTimeNowNt();
        efitick_t diff = nowTick - lastTick;
        lastTick = nowTick;
 
        engine->outputChannels.fastAdcPeriod = (uint32_t)diff;
        engine->outputChannels.fastAdcConversionCount++;
 
        onFastAdcComplete(adcp->samples);
    }
}

Here is the call graph for this function:

fastAdcErrorCB()

static void fastAdcErrorCB ( ADCDriver *  , adcerror_t  err  )

static

Definition at line 148 of file adc_onchip_fast.cpp.

                                                        {
    engine->outputChannels.fastAdcLastError = (uint8_t)err;
    engine->outputChannels.fastAdcErrorCount++;
    if (err == ADC_ERR_OVERFLOW) {
        engine->outputChannels.fastAdcOverrunCount++;
    }
    // TODO: restart?
}

fastAdcStartTrigger()

static void fastAdcStartTrigger ( GPTDriver *  )

static

Definition at line 178 of file adc_onchip_fast.cpp.

{
#if EFI_INTERNAL_ADC
    /*
     * Starts an asynchronous ADC conversion operation, the conversion
     * will be executed in parallel to the current PWM cycle and will
     * terminate before the next PWM cycle.
     */
    fastAdc.startConversionI();
#endif /* EFI_INTERNAL_ADC */
}

Here is the call graph for this function:

Variable Documentation

ADC_FAST_DEVICE

AdcDevice fastAdc& ADC_FAST_DEVICE

Definition at line 130 of file adc_onchip_fast.cpp.

Referenced by AdcDevice::startConversionI().

adcgrpcfgFast

ADCConversionGroup adcgrpcfgFast

static

Definition at line 72 of file adc_onchip_fast.cpp.

                                          {
#if defined(EFI_INTERNAL_FAST_ADC_PWM)
    .circular           = TRUE,
#elif defined (EFI_INTERNAL_FAST_ADC_GPT)
    .circular           = FALSE,
#endif
    .num_channels       = 0,
    .end_cb             = fastAdcDoneCB,
    .error_cb           = fastAdcErrorCB,
    /* HW dependent part.*/
    .cr1                = 0,
#if defined(EFI_INTERNAL_FAST_ADC_PWM)
    /* HW start using TIM8 CC 1 event rising edge
     * See "External trigger for regular channels" for magic 13 number
     * NOTE: Currently only TIM8 in PWM mode is supported */
    .cr2                = ADC_CR2_EXTEN_0 | (13 << ADC_CR2_EXTSEL_Pos),
#elif defined (EFI_INTERNAL_FAST_ADC_GPT)
    /* SW start through GPT callback and SW kick */
    .cr2                = ADC_CR2_SWSTART,
#endif
        /**
         * here we configure all possible channels for fast mode. Some channels would not actually
         * be used hopefully that's fine to configure all possible channels.
         *
         */
    // sample times for channels 10...18
    .smpr1 =
        ADC_SMPR1_SMP_AN10(ADC_SAMPLING_FAST) |
        ADC_SMPR1_SMP_AN11(ADC_SAMPLING_FAST) |
        ADC_SMPR1_SMP_AN12(ADC_SAMPLING_FAST) |
        ADC_SMPR1_SMP_AN13(ADC_SAMPLING_FAST) |
        ADC_SMPR1_SMP_AN14(ADC_SAMPLING_FAST) |
        ADC_SMPR1_SMP_AN15(ADC_SAMPLING_FAST),
    // In this field must be specified the sample times for channels 0...9
    .smpr2 =
        ADC_SMPR2_SMP_AN0(ADC_SAMPLING_FAST) |
        ADC_SMPR2_SMP_AN1(ADC_SAMPLING_FAST) |
        ADC_SMPR2_SMP_AN2(ADC_SAMPLING_FAST) |
        ADC_SMPR2_SMP_AN3(ADC_SAMPLING_FAST) |
        ADC_SMPR2_SMP_AN4(ADC_SAMPLING_FAST) |
        ADC_SMPR2_SMP_AN5(ADC_SAMPLING_FAST) |
        ADC_SMPR2_SMP_AN6(ADC_SAMPLING_FAST) |
        ADC_SMPR2_SMP_AN7(ADC_SAMPLING_FAST) |
        ADC_SMPR2_SMP_AN8(ADC_SAMPLING_FAST) |
        ADC_SMPR2_SMP_AN9(ADC_SAMPLING_FAST),
    .htr                = 0,
    .ltr                = 0,
    .sqr1               = 0, // Conversion group sequence 13...16 + sequence length
    .sqr2               = 0, // Conversion group sequence 7...12
    .sqr3               = 0, // Conversion group sequence 1...6
#if ADC_MAX_CHANNELS_COUNT > 16
    .sqr4               = 0, // Conversion group sequence 19...24
    .sqr5               = 0  // Conversion group sequence 25...30
#endif /* ADC_MAX_CHANNELS_COUNT */
};

Referenced by portInitAdc().

fast_adc_config

const GPTConfig fast_adc_config

static

Initial value:

= {
    .frequency = GPT_FREQ_FAST,
    .callback = fastAdcStartTrigger,
    .cr2 = 0,
    .dier = 0,
}

Definition at line 190 of file adc_onchip_fast.cpp.

                                         {
    .frequency = GPT_FREQ_FAST,
    .callback = fastAdcStartTrigger,
    .cr2 = 0,
    .dier = 0,
};

Referenced by AdcDevice::init().

fastAdcSampleBuf

volatile NO_CACHE adcsample_t fastAdcSampleBuf[ADC_BUF_DEPTH_FAST *ADC_MAX_CHANNELS_COUNT]

static

Definition at line 128 of file adc_onchip_fast.cpp.

lastTick

efitick_t lastTick = 0

static

Definition at line 132 of file adc_onchip_fast.cpp.

Referenced by fastAdcDoneCB().

pwmcfg

const PWMConfig pwmcfg

static

Initial value:

= {
    
    .frequency = GPT_FREQ_FAST * ADC_BUF_DEPTH_FAST,
    .period = GPT_PERIOD_FAST,
    .callback = nullptr,
    .channels = {
        {PWM_OUTPUT_ACTIVE_HIGH, nullptr},
        {PWM_OUTPUT_ACTIVE_HIGH, nullptr},
        {PWM_OUTPUT_ACTIVE_HIGH, nullptr},
        {PWM_OUTPUT_ACTIVE_HIGH, nullptr}
    },
    .cr2 = 0,
    .bdtr = 0,
    .dier = 0,
}

Definition at line 159 of file adc_onchip_fast.cpp.

                                {
    /* on each trigger event regular group of channels is converted,
     * to get whole buffer filled we need ADC_BUF_DEPTH_FAST trigger events */
    .frequency = GPT_FREQ_FAST * ADC_BUF_DEPTH_FAST,
    .period = GPT_PERIOD_FAST,
    .callback = nullptr,
    .channels = {
        {PWM_OUTPUT_ACTIVE_HIGH, nullptr},
        {PWM_OUTPUT_ACTIVE_HIGH, nullptr},
        {PWM_OUTPUT_ACTIVE_HIGH, nullptr},
        {PWM_OUTPUT_ACTIVE_HIGH, nullptr}
    },
    .cr2 = 0,
    .bdtr = 0,
    .dier = 0,
};

Referenced by AdcDevice::init().

Go to the source code of this file.