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287 lines
8.5 KiB
287 lines
8.5 KiB
/**
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* \file
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*
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* \brief ADC functionality declaration.
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*
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* Copyright (C) 2014-2016 Atmel Corporation. All rights reserved.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of Atmel may not be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* 4. This software may only be redistributed and used in connection with an
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* Atmel microcontroller product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* \asf_license_stop
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*
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*/
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#ifndef _HAL_ADC_SYNC_H_INCLUDED
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#define _HAL_ADC_SYNC_H_INCLUDED
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#include <hpl_adc_sync.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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* \addtogroup doc_driver_hal_adc_sync
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*
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* @{
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*/
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/**
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* \brief ADC descriptor
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*
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* The ADC descriptor forward declaration.
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*/
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struct adc_sync_descriptor;
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/**
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* \brief ADC descriptor
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*/
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struct adc_sync_descriptor {
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/** ADC device */
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struct _adc_sync_device device;
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};
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/**
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* \brief Initialize ADC
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*
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* This function initializes the given ADC descriptor.
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* It checks if the given hardware is not initialized and if the given hardware
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* is permitted to be initialized.
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*
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* \param[out] descr An ADC descriptor to initialize
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* \param[in] hw The pointer to hardware instance
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* \param[in] func The pointer to a set of functions pointers
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*
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* \return Initialization status.
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*/
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int32_t adc_sync_init(struct adc_sync_descriptor *const descr, void *const hw, void *const func);
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/**
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* \brief Deinitialize ADC
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*
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* This function deinitializes the given ADC descriptor.
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* It checks if the given hardware is initialized and if the given hardware is
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* permitted to be deinitialized.
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*
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* \param[in] descr An ADC descriptor to deinitialize
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*
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* \return De-initialization status.
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*/
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int32_t adc_sync_deinit(struct adc_sync_descriptor *const descr);
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/**
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* \brief Enable ADC
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*
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* Use this function to set the ADC peripheral to enabled state.
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*
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* \param[in] descr Pointer to the ADC descriptor
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* \param[in] channel Channel number
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*
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* \return Operation status
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*
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*/
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int32_t adc_sync_enable_channel(struct adc_sync_descriptor *const descr, const uint8_t channel);
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/**
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* \brief Disable ADC
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*
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* Use this function to set the ADC peripheral to disabled state.
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*
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* \param[in] descr Pointer to the ADC descriptor
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* \param[in] channel Channel number
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*
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* \return Operation status
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*
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*/
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int32_t adc_sync_disable_channel(struct adc_sync_descriptor *const descr, const uint8_t channel);
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/**
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* \brief Read data from ADC
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*
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* \param[in] descr The pointer to the ADC descriptor
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* \param[in] channel Channel number
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* \param[in] buf A buffer to read data to
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* \param[in] length The size of a buffer
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*
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* \return The number of bytes read.
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*/
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int32_t adc_sync_read_channel(struct adc_sync_descriptor *const descr, const uint8_t channel, uint8_t *const buffer,
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const uint16_t length);
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/**
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* \brief Set ADC reference source
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*
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* This function sets ADC reference source.
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*
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* \param[in] descr The pointer to the ADC descriptor
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* \param[in] reference A reference source to set
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*
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* \return Status of the ADC reference source setting.
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*/
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int32_t adc_sync_set_reference(struct adc_sync_descriptor *const descr, const adc_reference_t reference);
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/**
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* \brief Set ADC resolution
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*
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* This function sets ADC resolution.
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*
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* \param[in] descr The pointer to the ADC descriptor
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* \param[in] resolution A resolution to set
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*
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* \return Status of the ADC resolution setting.
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*/
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int32_t adc_sync_set_resolution(struct adc_sync_descriptor *const descr, const adc_resolution_t resolution);
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/**
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* \brief Set ADC input source of a channel
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*
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* This function sets ADC positive and negative input sources.
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*
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* \param[in] descr The pointer to the ADC descriptor
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* \param[in] pos_input A positive input source to set
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* \param[in] neg_input A negative input source to set
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* \param[in] channel Channel number
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*
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* \return Status of the ADC channels setting.
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*/
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int32_t adc_sync_set_inputs(struct adc_sync_descriptor *const descr, const adc_pos_input_t pos_input,
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const adc_neg_input_t neg_input, const uint8_t channel);
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/**
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* \brief Set ADC conversion mode
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*
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* This function sets ADC conversion mode.
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*
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* \param[in] descr The pointer to the ADC descriptor
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* \param[in] mode A conversion mode to set
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*
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* \return Status of the ADC conversion mode setting.
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*/
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int32_t adc_sync_set_conversion_mode(struct adc_sync_descriptor *const descr, const enum adc_conversion_mode mode);
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/**
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* \brief Set ADC differential mode
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*
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* This function sets ADC differential mode.
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*
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* \param[in] descr The pointer to the ADC descriptor
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* \param[in] channel Channel number
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* \param[in] mode A differential mode to set
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*
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* \return Status of the ADC differential mode setting.
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*/
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int32_t adc_sync_set_channel_differential_mode(struct adc_sync_descriptor *const descr, const uint8_t channel,
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const enum adc_differential_mode mode);
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/**
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* \brief Set ADC channel gain
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*
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* This function sets ADC channel gain.
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*
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* \param[in] descr The pointer to the ADC descriptor
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* \param[in] channel Channel number
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* \param[in] gain A gain to set
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*
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* \return Status of the ADC gain setting.
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*/
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int32_t adc_sync_set_channel_gain(struct adc_sync_descriptor *const descr, const uint8_t channel,
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const adc_gain_t gain);
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/**
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* \brief Set ADC window mode
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*
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* This function sets ADC window mode.
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*
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* \param[in] descr The pointer to the ADC descriptor
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* \param[in] mode A window mode to set
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*
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* \return Status of the ADC window mode setting.
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*/
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int32_t adc_sync_set_window_mode(struct adc_sync_descriptor *const descr, const adc_window_mode_t mode);
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/**
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* \brief Set ADC thresholds
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*
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* This function sets ADC positive and negative thresholds.
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*
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* \param[in] descr The pointer to the ADC descriptor
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* \param[in] low_threshold A lower thresholds to set
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* \param[in] up_threshold An upper thresholds to set
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*
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* \return Status of the ADC thresholds setting.
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*/
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int32_t adc_sync_set_thresholds(struct adc_sync_descriptor *const descr, const adc_threshold_t low_threshold,
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const adc_threshold_t up_threshold);
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/**
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* \brief Retrieve threshold state
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*
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* This function retrieves ADC threshold state.
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*
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* \param[in] descr The pointer to the ADC descriptor
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* \param[out] state The threshold state
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*
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* \return The state of ADC thresholds state retrieving.
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*/
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int32_t adc_sync_get_threshold_state(const struct adc_sync_descriptor *const descr,
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adc_threshold_status_t *const state);
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/**
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* \brief Check if conversion is complete
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*
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* This function checks if the ADC has finished the conversion.
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*
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* \param[in] descr The pointer to the ADC descriptor
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* \param[in] channel Channel number
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*
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* \return The status of ADC conversion completion checking.
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* \retval 1 The conversion is complete
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* \retval 0 The conversion is not complete
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*/
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int32_t adc_sync_is_channel_conversion_complete(const struct adc_sync_descriptor *const descr, const uint8_t channel);
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/**
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* \brief Retrieve the current driver version
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*
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* \return Current driver version.
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*/
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uint32_t adc_sync_get_version(void);
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/**@}*/
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#ifdef __cplusplus
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}
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#endif
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#include <hpl_missing_features.h>
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#endif /* _HAL_ADC_SYNC_H_INCLUDED */
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