/** * \file * * \brief ADC functionality declaration. * * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries. * * \asf_license_start * * \page License * * Subject to your compliance with these terms, you may use Microchip * software and any derivatives exclusively with Microchip products. * It is your responsibility to comply with third party license terms applicable * to your use of third party software (including open source software) that * may accompany Microchip software. * * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES, * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY, * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE. * * \asf_license_stop * */ #ifndef _HAL_ADC_SYNC_H_INCLUDED #define _HAL_ADC_SYNC_H_INCLUDED #include #ifdef __cplusplus extern "C" { #endif /** * \addtogroup doc_driver_hal_adc_sync * * @{ */ /** * \brief ADC descriptor * * The ADC descriptor forward declaration. */ struct adc_sync_descriptor; /** * \brief ADC descriptor */ struct adc_sync_descriptor { /** ADC device */ struct _adc_sync_device device; }; /** * \brief Initialize ADC * * This function initializes the given ADC descriptor. * It checks if the given hardware is not initialized and if the given hardware * is permitted to be initialized. * * \param[out] descr An ADC descriptor to initialize * \param[in] hw The pointer to hardware instance * \param[in] func The pointer to a set of functions pointers * * \return Initialization status. */ int32_t adc_sync_init(struct adc_sync_descriptor *const descr, void *const hw, void *const func); /** * \brief Deinitialize ADC * * This function deinitializes the given ADC descriptor. * It checks if the given hardware is initialized and if the given hardware is * permitted to be deinitialized. * * \param[in] descr An ADC descriptor to deinitialize * * \return De-initialization status. */ int32_t adc_sync_deinit(struct adc_sync_descriptor *const descr); /** * \brief Enable ADC * * Use this function to set the ADC peripheral to enabled state. * * \param[in] descr Pointer to the ADC descriptor * \param[in] channel Channel number * * \return Operation status * */ int32_t adc_sync_enable_channel(struct adc_sync_descriptor *const descr, const uint8_t channel); /** * \brief Disable ADC * * Use this function to set the ADC peripheral to disabled state. * * \param[in] descr Pointer to the ADC descriptor * \param[in] channel Channel number * * \return Operation status * */ int32_t adc_sync_disable_channel(struct adc_sync_descriptor *const descr, const uint8_t channel); /** * \brief Read data from ADC * * \param[in] descr The pointer to the ADC descriptor * \param[in] channel Channel number * \param[in] buf A buffer to read data to * \param[in] length The size of a buffer * * \return The number of bytes read. */ int32_t adc_sync_read_channel(struct adc_sync_descriptor *const descr, const uint8_t channel, uint8_t *const buffer, const uint16_t length); /** * \brief Set ADC reference source * * This function sets ADC reference source. * * \param[in] descr The pointer to the ADC descriptor * \param[in] reference A reference source to set * * \return Status of the ADC reference source setting. */ int32_t adc_sync_set_reference(struct adc_sync_descriptor *const descr, const adc_reference_t reference); /** * \brief Set ADC resolution * * This function sets ADC resolution. * * \param[in] descr The pointer to the ADC descriptor * \param[in] resolution A resolution to set * * \return Status of the ADC resolution setting. */ int32_t adc_sync_set_resolution(struct adc_sync_descriptor *const descr, const adc_resolution_t resolution); /** * \brief Set ADC input source of a channel * * This function sets ADC positive and negative input sources. * * \param[in] descr The pointer to the ADC descriptor * \param[in] pos_input A positive input source to set * \param[in] neg_input A negative input source to set * \param[in] channel Channel number * * \return Status of the ADC channels setting. */ int32_t adc_sync_set_inputs(struct adc_sync_descriptor *const descr, const adc_pos_input_t pos_input, const adc_neg_input_t neg_input, const uint8_t channel); /** * \brief Set ADC conversion mode * * This function sets ADC conversion mode. * * \param[in] descr The pointer to the ADC descriptor * \param[in] mode A conversion mode to set * * \return Status of the ADC conversion mode setting. */ int32_t adc_sync_set_conversion_mode(struct adc_sync_descriptor *const descr, const enum adc_conversion_mode mode); /** * \brief Set ADC differential mode * * This function sets ADC differential mode. * * \param[in] descr The pointer to the ADC descriptor * \param[in] channel Channel number * \param[in] mode A differential mode to set * * \return Status of the ADC differential mode setting. */ int32_t adc_sync_set_channel_differential_mode(struct adc_sync_descriptor *const descr, const uint8_t channel, const enum adc_differential_mode mode); /** * \brief Set ADC channel gain * * This function sets ADC channel gain. * * \param[in] descr The pointer to the ADC descriptor * \param[in] channel Channel number * \param[in] gain A gain to set * * \return Status of the ADC gain setting. */ int32_t adc_sync_set_channel_gain(struct adc_sync_descriptor *const descr, const uint8_t channel, const adc_gain_t gain); /** * \brief Set ADC window mode * * This function sets ADC window mode. * * \param[in] descr The pointer to the ADC descriptor * \param[in] mode A window mode to set * * \return Status of the ADC window mode setting. */ int32_t adc_sync_set_window_mode(struct adc_sync_descriptor *const descr, const adc_window_mode_t mode); /** * \brief Set ADC thresholds * * This function sets ADC positive and negative thresholds. * * \param[in] descr The pointer to the ADC descriptor * \param[in] low_threshold A lower thresholds to set * \param[in] up_threshold An upper thresholds to set * * \return Status of the ADC thresholds setting. */ int32_t adc_sync_set_thresholds(struct adc_sync_descriptor *const descr, const adc_threshold_t low_threshold, const adc_threshold_t up_threshold); /** * \brief Retrieve threshold state * * This function retrieves ADC threshold state. * * \param[in] descr The pointer to the ADC descriptor * \param[out] state The threshold state * * \return The state of ADC thresholds state retrieving. */ int32_t adc_sync_get_threshold_state(const struct adc_sync_descriptor *const descr, adc_threshold_status_t *const state); /** * \brief Check if conversion is complete * * This function checks if the ADC has finished the conversion. * * \param[in] descr The pointer to the ADC descriptor * \param[in] channel Channel number * * \return The status of ADC conversion completion checking. * \retval 1 The conversion is complete * \retval 0 The conversion is not complete */ int32_t adc_sync_is_channel_conversion_complete(const struct adc_sync_descriptor *const descr, const uint8_t channel); /** * \brief Retrieve the current driver version * * \return Current driver version. */ uint32_t adc_sync_get_version(void); /**@}*/ #ifdef __cplusplus } #endif #include #endif /* _HAL_ADC_SYNC_H_INCLUDED */