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/**
* \file
*
* \brief ADC functionality implementation.
*
* 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
*
*/
/**
* \brief Indicates HAL being compiled. Must be defined before including.
*/
#define _COMPILING_HAL
#include "hal_adc_sync.h"
#include <utils_assert.h>
/**
* \brief Driver version
*/
#define DRIVER_VERSION 0x00000001u
/**
* \brief Maximum amount of ADC interface instances
*/
#define MAX_ADC_AMOUNT ADC_INST_NUM
/**
* \brief Initialize ADC
*/
int32_t adc_sync_init(struct adc_sync_descriptor *const descr, void *const hw, void *const func)
{
ASSERT(descr && hw);
return _adc_sync_init(&descr->device, hw);
}
/**
* \brief Deinitialize ADC
*/
int32_t adc_sync_deinit(struct adc_sync_descriptor *const descr)
{
ASSERT(descr);
_adc_sync_deinit(&descr->device);
return ERR_NONE;
}
/**
* \brief Enable ADC
*/
int32_t adc_sync_enable_channel(struct adc_sync_descriptor *const descr, const uint8_t channel)
{
ASSERT(descr);
_adc_sync_enable_channel(&descr->device, channel);
return ERR_NONE;
}
/**
* \brief Disable ADC
*/
int32_t adc_sync_disable_channel(struct adc_sync_descriptor *const descr, const uint8_t channel)
{
ASSERT(descr);
_adc_sync_disable_channel(&descr->device, channel);
return ERR_NONE;
}
/*
* \brief Read data from ADC
*/
int32_t adc_sync_read_channel(struct adc_sync_descriptor *const descr, const uint8_t channel, uint8_t *const buffer,
const uint16_t length)
{
uint8_t data_size;
uint16_t offset = 0;
ASSERT(descr && buffer && length);
data_size = _adc_sync_get_data_size(&descr->device);
ASSERT(!(length % data_size));
do {
uint16_t result;
_adc_sync_convert(&descr->device);
while (!_adc_sync_is_channel_conversion_done(&descr->device, channel))
;
result = _adc_sync_read_channel_data(&descr->device, channel);
buffer[offset] = result;
if (1 < data_size) {
buffer[offset + 1] = result >> 8;
}
offset += data_size;
} while (offset < length);
return offset;
}
/**
* \brief Set ADC reference source
*/
int32_t adc_sync_set_reference(struct adc_sync_descriptor *const descr, const adc_reference_t reference)
{
ASSERT(descr);
_adc_sync_set_reference_source(&descr->device, reference);
return ERR_NONE;
}
/**
* \brief Set ADC resolution
*/
int32_t adc_sync_set_resolution(struct adc_sync_descriptor *const descr, const adc_resolution_t resolution)
{
ASSERT(descr);
_adc_sync_set_resolution(&descr->device, resolution);
return ERR_NONE;
}
/**
* \brief Set ADC input source of a channel
*/
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)
{
ASSERT(descr);
_adc_sync_set_inputs(&descr->device, pos_input, neg_input, channel);
return ERR_NONE;
}
/**
* \brief Set ADC thresholds
*/
int32_t adc_sync_set_thresholds(struct adc_sync_descriptor *const descr, const adc_threshold_t low_threshold,
const adc_threshold_t up_threshold)
{
ASSERT(descr);
_adc_sync_set_thresholds(&descr->device, low_threshold, up_threshold);
return ERR_NONE;
}
/**
* \brief Set ADC gain
*/
int32_t adc_sync_set_channel_gain(struct adc_sync_descriptor *const descr, const uint8_t channel, const adc_gain_t gain)
{
ASSERT(descr);
_adc_sync_set_channel_gain(&descr->device, channel, gain);
return ERR_NONE;
}
/**
* \brief Set ADC conversion mode
*/
int32_t adc_sync_set_conversion_mode(struct adc_sync_descriptor *const descr, const enum adc_conversion_mode mode)
{
ASSERT(descr);
_adc_sync_set_conversion_mode(&descr->device, mode);
return ERR_NONE;
}
/**
* \brief Set ADC differential mode
*/
int32_t adc_sync_set_channel_differential_mode(struct adc_sync_descriptor *const descr, const uint8_t channel,
const enum adc_differential_mode mode)
{
ASSERT(descr);
_adc_sync_set_channel_differential_mode(&descr->device, channel, mode);
return ERR_NONE;
}
/**
* \brief Set ADC window mode
*/
int32_t adc_sync_set_window_mode(struct adc_sync_descriptor *const descr, const adc_window_mode_t mode)
{
ASSERT(descr);
_adc_sync_set_window_mode(&descr->device, mode);
return ERR_NONE;
}
/**
* \brief Retrieve threshold state
*/
int32_t adc_sync_get_threshold_state(const struct adc_sync_descriptor *const descr, adc_threshold_status_t *const state)
{
ASSERT(descr && state);
_adc_sync_get_threshold_state(&descr->device, state);
return ERR_NONE;
}
/**
* \brief Check if conversion is complete
*/
int32_t adc_sync_is_channel_conversion_complete(const struct adc_sync_descriptor *const descr, const uint8_t channel)
{
ASSERT(descr);
return _adc_sync_is_channel_conversion_done(&descr->device, channel);
}
/**
* \brief Retrieve the current driver version
*/
uint32_t adc_sync_get_version(void)
{
return DRIVER_VERSION;
}
//@}
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