#include "adc.h"
#include "GPIO.h"
#include "stm8s_gpio.h"
#include "stm8s_adc1.h"

#define ADC_CURRENT_CH (ADC1_CHANNEL_4)
#define ADC_VOLTAGE_CH (ADC1_CHANNEL_2)
enum
{
	ADC_CHANNELMAX = 16
};

static uint16_t ADC1_ValueBuffer_u16[ADC_CHANNELMAX] = {0};
static void ADC1_SCAN(void);

/*!
* @brief 配置ADC引脚
* @param [in] void
* @note null
*/
void ADCconfig(void)
{
	GPIO_Init(CURRENT_AI_PORT, CURRENT_AI_PIN, GPIO_MODE_IN_FL_NO_IT);
	GPIO_Init(VOLTAGE_AI_PORT, VOLTAGE_AI_PIN, GPIO_MODE_IN_FL_NO_IT);

	ADC1_DeInit();
	// ADC1_Init(ADC1_CONVERSIONMODE_SINGLE, channl[i], ADC1_PRESSEL_FCPU_D2,
	// 			  ADC1_EXTTRIG_TIM, DISABLE, ADC1_ALIGN_RIGHT, ADC1_SCHMITTTRIG_CHANNEL8,
	// 			  DISABLE);
}

static void ADC1_SCAN(void)
{
	uint8_t i = 0;
	ADC1_Channel_TypeDef channl[] = {ADC_CURRENT_CH,
									 ADC_VOLTAGE_CH};

	for (i = 0; i < (sizeof(channl) / sizeof(ADC1_Channel_TypeDef)); i++)
	{
		ADC1_Init(ADC1_CONVERSIONMODE_SINGLE, channl[i], ADC1_PRESSEL_FCPU_D2,
				  ADC1_EXTTRIG_TIM, DISABLE, ADC1_ALIGN_RIGHT, ADC1_SCHMITTTRIG_CHANNEL8,
				  DISABLE);

		ADC1_StartConversion();

		while (!ADC1_GetFlagStatus(ADC1_FLAG_EOC))
			; //wait for Conversion over.

		ADC1_ValueBuffer_u16[channl[i]] = ADC1_GetConversionValue();

		ADC1_ClearFlag(ADC1_FLAG_EOC);

		ADC1_ClearITPendingBit(ADC1_IT_EOC);
	}
}

/*!
* @brief 采集ADC任务
* @param [in] void
* @note null
*/
void ADCTask(void)
{
	ADC1_SCAN();
}

/*!
* @brief 获取ADC1函数
* @param [in] void
* @retval ADC的数字量
* @note null
*/
int GetADC1Value(int ch)
{
	return ADC1_ValueBuffer_u16[ch];
}