/**
*********************************************************************************************************
*               Copyright(c) 2018, Realtek Semiconductor Corporation. All rights reserved.
*********************************************************************************************************
* @file     io_adc.h
* @brief
* @details
* @author   yuan
* @date     2018-12-07
* @version  v1.0
*********************************************************************************************************
*/

#ifndef __IO_ADC_H
#define __IO_ADC_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "rtl876x_adc.h"
#include "rtl876x_gdma.h"
#include "rtl876x_nvic.h"
#include "rtl876x_pinmux.h"
#include "rtl876x_rcc.h"

#include "app_msg.h"
#include "board.h"

/* Defines ------------------------------------------------------------------*/
/** ADC sample channel config.
  * ADC sample channel config:P2_2,P2_3,P2_6,P2_7 and VBAT
  * ADC sample channel index select: #define ADC_Channel_Index_0         0
  *                                  #define ADC_Channel_Index_1         1
  *                                  #define ADC_Channel_Index_2         2
  *                                  #define ADC_Channel_Index_3         3

  * If ADC_SAMPLE_PIN = P2_2, then ADC_SAMPLE_CHANNEL = ADC_Channel_Index_0;
  * If ADC_SAMPLE_PIN = P2_3, then ADC_SAMPLE_CHANNEL = ADC_Channel_Index_1;
  * If ADC_SAMPLE_PIN = P2_6, then ADC_SAMPLE_CHANNEL = ADC_Channel_Index_2;
  * If ADC_SAMPLE_PIN = P2_7, then ADC_SAMPLE_CHANNEL = ADC_Channel_Index_3;
  */
#define ADC_SAMPLE_CHANNEL_0        ADC_Channel_Index_0
#define ADC_SAMPLE_CHANNEL_1        ADC_Channel_Index_1
#define ADC_SAMPLE_CHANNEL_2        ADC_Channel_Index_2
#define ADC_SAMPLE_CHANNEL_3        ADC_Channel_Index_3

/** ADC mode config.
  * ADC pin hardware mode: bypass mode
  *                        divide mode
  */
#define ADC_DIVIDE_MODE                     0
#define ADC_BYPASS_MODE                     1
#define ADC_MODE_DIVIDE_OR_BYPASS           ADC_DIVIDE_MODE

#define ADC_CONTINUOUS_SAMPLE_PERIOD        (20-1)//2us

#define GDMA_TRANSFER_SIZE                  4000


extern uint16_t ADC_Recv_Buffer[GDMA_TRANSFER_SIZE];

void global_data_adc_init(void);
void board_adc_init(void);
void driver_adc_init(void);
void driver_gdma_adc_init(void);
void io_handle_adc_msg(T_IO_MSG *io_adc_msg);
void io_handle_gdma_msg(T_IO_MSG *io_gdma_msg);
void io_adc_sample_start(void);
void io_adc_sample_stop(void);

#ifdef __cplusplus
}
#endif

#endif