mirror of https://github.com/rusefi/rusefi-1.git
57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
/**
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* @file AdcConfiguration.h
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*
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* @date May 3, 2014
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* @author Andrey Belomutskiy, (c) 2012-2020
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*/
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#pragma once
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#if HAL_USE_ADC
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#define ADC_MAX_CHANNELS_COUNT 16
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// this structure contains one multi-channel ADC state snapshot
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typedef struct {
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volatile adcsample_t adc_data[ADC_MAX_CHANNELS_COUNT];
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} adc_state;
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class AdcDevice {
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public:
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explicit AdcDevice(ADCConversionGroup* hwConfig);
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void enableChannel(adc_channel_e hwChannelIndex);
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void enableChannelAndPin(adc_channel_e hwChannelIndex);
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adc_channel_e getAdcHardwareIndexByInternalIndex(int index) const;
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int internalAdcIndexByHardwareIndex[20];
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bool isHwUsed(adc_channel_e hwChannel) const;
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int size() const;
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void init(void);
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int conversionCount;
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int errorsCount;
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int getAdcValueByIndex(int internalIndex) const;
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void invalidateSamplesCache();
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// on F7 this must be aligned on a 32-byte boundary, and be a multiple of 32 bytes long.
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// When we invalidate the cache line(s) for ADC samples, we don't want to nuke any
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// adjacent data.
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// F4 does not care
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__ALIGNED(32) adcsample_t samples[ADC_MAX_CHANNELS_COUNT * MAX_ADC_GRP_BUF_DEPTH];
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// Assert multiple of 32 bytes long so we don't stomp on the data after the buffer
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static_assert(sizeof(samples) % 32 == 0, "ADC sample buffer size must be a multiple of 32 bytes");
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int getAdcValueByHwChannel(int hwChannel) const;
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adc_state values;
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int channelCount;
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private:
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ADCConversionGroup* hwConfig;
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/**
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* Number of ADC channels in use
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*/
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adc_channel_e hardwareIndexByIndernalAdcIndex[20];
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};
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#endif /* HAL_USE_ADC */
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