/*
 * Copyright (c) 2023 Juan Manuel Cruz <jcruz@fi.uba.ar> <jcruz@frba.utn.edu.ar>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @file   : task_adc.c
 * @date   : Set 26, 2023
 * @author : Juan Manuel Cruz <jcruz@fi.uba.ar> <jcruz@frba.utn.edu.ar>
 * @version	v1.0.0
 */

/********************** inclusions *******************************************/
/* Project includes. */
#include "main.h"

/* Demo includes. */
#include "logger.h"
#include "dwt.h"

/* Application & Tasks includes. */
#include "board.h"
#include "app.h"

/********************** macros and definitions *******************************/

#define ADC_AVG_SAMPLES 10


/********************** internal data declaration ****************************/


/********************** internal functions declaration ***********************/
HAL_StatusTypeDef ADC_Poll_Read(uint16_t *value);

/********************** internal data definition *****************************/
const char *p_task_adc = "Task ADC";

/********************** external data declaration *****************************/

extern ADC_HandleTypeDef hadc1;

/********************** external functions definition ************************/
void task_adc_init(void *parameters)
{
    shared_data_type *shared_data = (shared_data_type *) parameters;

    /* Print out: Task Initialized */
    LOGGER_LOG("  %s is running - %s\r\n", GET_NAME(task_adc_init), p_task_adc);

    shared_data->adc_end_of_conversion = false;
}

void task_adc_update(void *parameters)
{
    shared_data_type *shared_data = (shared_data_type *) parameters;

    if (HAL_OK == ADC_Poll_Read(&shared_data->adc_value))
    {
        shared_data->adc_end_of_conversion = true;
    }
    else
    {
        LOGGER_LOG("error\n");
    }
}

// Requests start of conversion, waits until conversion done
HAL_StatusTypeDef ADC_Poll_Read(uint16_t *value) {
    HAL_StatusTypeDef res;
    uint32_t sum = 0;

    for (int i = 0; i < ADC_AVG_SAMPLES; i++)
    {
        if ((res = HAL_ADC_Start(&hadc1)) != HAL_OK)
        {
            return res;
        }

        if ((res = HAL_ADC_PollForConversion(&hadc1, HAL_MAX_DELAY)) != HAL_OK)
        {
            return res;
        }

        sum += HAL_ADC_GetValue(&hadc1);
        HAL_ADC_Stop(&hadc1);
    }

    *value = (sum / ADC_AVG_SAMPLES);
    return HAL_OK;
}



/********************** end of file ******************************************/