67 lines
2.5 KiB
C
67 lines
2.5 KiB
C
/***************************************************************************
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* Copyright (C) 2024 by Silvano Seva IU2KWO *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, see <http://www.gnu.org/licenses/> *
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***************************************************************************/
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#ifndef ADC_STM32_H
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#define ADC_STM32_H
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#include <peripherals/adc.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Define an instance of an STM32 ADC device driver.
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*
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* @param name: instance name.
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* @param periph: pointer to hardware peripheral.
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* @param mutx: pointer to mutex for concurrent access, can be NULL.
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* @param vref: ADC reference voltage, in uV.
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*/
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#define ADC_STM32_DEVICE_DEFINE(name, periph, mutx, vref) \
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extern uint16_t adcStm32_sample(const struct Adc *adc, \
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const uint32_t channel); \
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const struct Adc name = \
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{ \
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.sample = &adcStm32_sample, \
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.priv = periph, \
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.mutex = mutx, \
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.countsTouV = ADC_COUNTS_TO_UV(vref, 12) \
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};
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/**
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* Initialize an STM32 ADC peripheral.
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*
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* @param adc: pointer to ADC device handle.
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* @return zero on success, a negative error code otherwise.
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*/
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int adcStm32_init(const struct Adc *adc);
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/**
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* Shut down an STM32 ADC peripheral.
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*
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* @param adc: pointer to ADC device handle.
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* @return zero on success, a negative error code otherwise.
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*/
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void adcStm32_terminate(const struct Adc *adc);
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#ifdef __cplusplus
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}
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#endif
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#endif /* ADC_STM32_H */
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