/**
 *******************************************************************************
 * @file    adc_scansample.c
 *
 * @brief   Implement system specific functions.
 *
 * @author  DP
 *
 * @version V1.0.0
 *
 * @date    2024-12-01
 *
 *******************************************************************************/

/*
    Copyright (c) 2024, DP Microelectronics Inc.

    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.
*/

/* Files include */
#include "adc_scansample.h"

/**
  * @addtogroup DPM32M030_LibSamples
  * @{
  */

/**
  * @addtogroup ADC
  * @{
  */

/**
  * @addtogroup ADC ScanSample
  * @{
  */

/* Private typedef --------------------------------------------------------------*/
ADC_GPIOTypeStruct adcCHxGPIOMap[]  =
{
  {GPIOA, GPIO_PIN_0},
  {GPIOA, GPIO_PIN_1},
  {GPIOA, GPIO_PIN_2},
  {GPIOA, GPIO_PIN_3},
  {GPIOA, GPIO_PIN_4},
  {GPIOA, GPIO_PIN_5},
  {GPIOA, GPIO_PIN_6},
  {GPIOA, GPIO_PIN_7},
  {GPIOB, GPIO_PIN_0},
  {GPIOB, GPIO_PIN_1},
};

uint8_t adcChannelMap[] = {ADC_Channel_0, ADC_Channel_1, ADC_Channel_2, ADC_Channel_3,
                           ADC_Channel_4, ADC_Channel_5, ADC_Channel_6, ADC_Channel_7,
                           ADC_Channel_8, ADC_Channel_9};

GPIO_InitTypeStruct ADC_GPIO_InitStruct;
ADCCOM_InitTypeStruct ADCCOM_InitStruct;
ADCCOM_ChannelStruct ADCCOM_ChannelConfigStruct;
ADC_InitTypeStruct ADC_InitStruct;
ADC_ChannelStruct ADC_ChannelConfigStruct;

/* Private define ---------------------------------------------------------------*/
#define ChanleNum 10

/* Private macro ----------------------------------------------------------------*/

/* Private variables ------------------------------------------------------------*/
uint16_t ADC_ContinueVal[10][ChanleNum] = {0};
uint16_t ChSumVol[ChanleNum] = {0};
float ChVol[ChanleNum] = {0};

/* Private functions ------------------------------------------------------------*/

/**
 *******************************************************************************
 * @brief   ADC GPIO Init.
 * @param   None.
 * @retval  None.
 ******************************************************************************/
void ADC_GPIO_Init(ADC_GPIOTypeStruct *ADC_GPIOStruct)
{
  /* Enable clock */
  RCC_Unlock();
  RCC_AHBPeriphClockCmd(RCC_AHB_PERIPH_GPIO, ENABLE);
  RCC_Lock();
  GPIO_StructInit(&ADC_GPIO_InitStruct);
  ADC_GPIO_InitStruct.GPIO_Mode = GPIO_MODE_ANALOG;
  ADC_GPIO_InitStruct.GPIO_Speed = GPIO_SPEED_HIGH;
  ADC_GPIO_InitStruct.GPIO_OType = GPIO_OTYPE_PP;
  ADC_GPIO_InitStruct.GPIO_PuPd = GPIO_PUPD_NOPULL;
  ADC_GPIO_InitStruct.GPIO_Pin = ADC_GPIOStruct->pin;
  GPIO_Init(ADC_GPIOStruct->gpio, &ADC_GPIO_InitStruct);
  GPIO_AnaAFConfig(ADC_GPIOStruct->gpio, ADC_GPIOStruct->pin, ADC_GPIOStruct->ana_func);
}
/**
 *******************************************************************************
 * @brief   ADC Config.
 * @param   None.
 * @retval  None.
 ******************************************************************************/
void ADC_Config(void)
{
  /* Enable clock */
  RCC_Unlock();
  RCC_APBPeriphClockCmd(RCC_APB_PERIPH_ADC, ENABLE);
  RCC_Lock();
  
  /* Config ADC common parameters */
  ADCCOM_StructInit(&ADCCOM_InitStruct);
  ADCCOM_InitStruct.AdcSpeed = 1;
  ADCCOM_InitStruct.Vref = ADC_VREF_AVDD;
  ADCCOM_InitStruct.ClkDiv = ADC_CLK_DIV1;
  ADCCOM_InitStruct.SampleTime0 = ADC_SAMPLE_TIME_64Cycles;
  ADCCOM_InitStruct.SampleTime1 = ADC_SAMPLE_TIME_64Cycles;
  ADCCOM_InitStruct.SampleAccuracy = ADC_Sample_Accuracy_12Bit;
  ADCCOM_InitStruct.IN15Sel = ADC_IN15_SEL_TEMP;
  ADCCOM_Init(&ADCCOM_InitStruct);
  ADCCOM_ChannelStructInit(&ADCCOM_ChannelConfigStruct);

  /* Config all channel */
  for(uint8_t i = 0; i < ChanleNum; i++)
  {
    ADCCOM_ChannelConfigStruct.Channel = adcChannelMap[i];
    ADCCOM_ChannelConfigStruct.OversampleEnable = DISABLE;
    ADCCOM_ChannelConfigStruct.SampleTimeSel = ADC_SAMPLE_TIME_SEL0;
    ADCCOM_ChannelConfigStruct.Offset = 0;
    ADCCOM_ChannelConfig(&ADCCOM_ChannelConfigStruct);
    ADC_ChannelStructInit(&ADC_ChannelConfigStruct);
    ADC_ChannelConfigStruct.Channel = adcChannelMap[i];
    ADC_ChannelConfigStruct.DataAlign = ADC_DATA_ALIGN_RIGHT;
    ADC_ChannelConfigStruct.DataSign = ADC_DATA_UNSIGNED;
    ADC_ChannelConfig(ADC0, &ADC_ChannelConfigStruct);
  }

  /* Config ADC0 */
  ADC_StructInit(&ADC_InitStruct);
  /* Single sequence scan */
  ADC_InitStruct.TrigMode = ADC_TRIG_SW_SINGLE_SEQ_CONV;
  ADC_InitStruct.ContinueWait = ADC_CONTINUE_WAIT_CYCLE_16;
  ADC_InitStruct.ScanChannelLen = ChanleNum;
  ADC_Init(ADC0, &ADC_InitStruct);
}

/**
 *******************************************************************************
 * @brief   ADC ScanSample Sample.
 * @param   None.
 * @retval  None.
 ******************************************************************************/
void ADC_ScanSample_Sample(void)
{
  /* ADC config */
  ADC_Config();

  /* Config ADC channel GPIO */
  for(uint8_t i = 0; i < ChanleNum; i++)
  {
    ADC_GPIO_Init(&adcCHxGPIOMap[i]);

    ADC_ScanChannelConfig(ADC0, i, i);
  }
  
  /* Enable ADC0 */
  ADC_Cmd(ADC0, ENABLE);

  /* Read the sampling values of each channel, and read them ten times. */
  for(uint8_t i = 0; i < 10; i++)
  {
    /* Start conversation */
    ADC_StartConversion(ADC0);

    while(ADC_GetIntFlagStatus(ADC0, ADC_INT_FLAG_EOS) != SET);

    for(uint8_t j = 0; j < ChanleNum; j++)
    {
      ADC_ContinueVal[i][j] = ADC_GetScanData(ADC0, j);
    }    
    
    ADC_ClearIntFlag(ADC0, ADC_INT_FLAG_EOS);
  }

  /* Stop conversation */
  ADC_StopConversion(ADC0);
 
  /* Take the average of the numbers obtained from ten samplings to get the voltage value. */
  for(uint8_t i = 0; i < 10; i++)
  {
    for(uint8_t j = 0; j < ChanleNum; j++)
    {
      ChSumVol[j] += ADC_ContinueVal[i][j];
    }
  } 
  for(uint8_t i = 0; i < ChanleNum; i++)
  {
    ChVol[i] = (float)ChSumVol[i] / 10 / 4096 * 3300;
  }
}

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT DP *****END OF FILE ***************************/
