#include "adc.h"
#include "SysTick.h"
#include "gd32e230_libopt.h"



#define ADC_Vref 			33
#define ADC_V_Gain 		1294
#define ADC_GEN       1.414
#define ADC_I_Gain    2000



#define U_max   GPIO_PIN_3
#define U_min		GPIO_PIN_4


#define I_max		GPIO_PIN_5
#define I_min		GPIO_PIN_6

uint16_t adc_original_value[4]= {0};

void ADC_dma_config(void)
{

    dma_parameter_struct dma_data_parameter;

    rcu_periph_clock_enable(RCU_ADC);

    rcu_periph_clock_enable(RCU_DMA);

    dma_deinit(DMA_CH0);
    
    dma_data_parameter.periph_addr  = (uint32_t)(&ADC_RDATA);
    dma_data_parameter.periph_inc   = DMA_PERIPH_INCREASE_DISABLE;
    dma_data_parameter.memory_addr  = (uint32_t)(adc_original_value);
    dma_data_parameter.memory_inc   = DMA_MEMORY_INCREASE_ENABLE;
    dma_data_parameter.periph_width = DMA_PERIPHERAL_WIDTH_16BIT;
    dma_data_parameter.memory_width = DMA_MEMORY_WIDTH_16BIT;  
    dma_data_parameter.direction    = DMA_PERIPHERAL_TO_MEMORY;

    dma_data_parameter.number       = 4;

    dma_data_parameter.priority     = DMA_PRIORITY_HIGH;
    dma_circulation_enable(DMA_CH0);
    dma_init(DMA_CH0, &dma_data_parameter);
		dma_memory_to_memory_disable(DMA_CH0);
    dma_channel_enable(DMA_CH0);
}


void AdcInit(void)
{
	rcu_periph_clock_enable(RCU_GPIOA);
	rcu_periph_clock_enable(RCU_DMA);
	rcu_periph_clock_enable(RCU_ADC);
	rcu_adc_clock_config(RCU_ADCCK_APB2_DIV8);
	gpio_mode_set(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, U_max | U_min | I_max | I_min);
	adc_deinit();
	ADC_dma_config();
	adc_special_function_config(ADC_SCAN_MODE,ENABLE);
	adc_special_function_config(ADC_CONTINUOUS_MODE,ENABLE);
	adc_external_trigger_source_config(ADC_REGULAR_CHANNEL,ADC_EXTTRIG_REGULAR_NONE);
	adc_data_alignment_config(ADC_DATAALIGN_RIGHT);
	adc_resolution_config(ADC_RESOLUTION_12B);
	adc_channel_length_config(ADC_REGULAR_CHANNEL, 4);
	adc_external_trigger_config(ADC_REGULAR_CHANNEL, ENABLE);
	adc_regular_channel_config(0U, ADC_CHANNEL_3, ADC_SAMPLETIME_1POINT5);
  adc_regular_channel_config(1U, ADC_CHANNEL_4, ADC_SAMPLETIME_1POINT5);
  adc_regular_channel_config(2U, ADC_CHANNEL_5, ADC_SAMPLETIME_1POINT5);
  adc_regular_channel_config(3U, ADC_CHANNEL_6, ADC_SAMPLETIME_1POINT5);
	
	adc_enable();
	adc_enable();
	DelayNms(1);

	adc_calibration_enable();
	adc_dma_mode_enable();
	adc_software_trigger_enable(ADC_REGULAR_CHANNEL);
	adc_software_trigger_enable(ADC_REGULAR_CHANNEL);
}


void AdcInit_old(void)
{
	rcu_periph_clock_enable(RCU_GPIOA);
	//rcu_periph_clock_enable(RCU_DMA);
	rcu_periph_clock_enable(RCU_ADC);
	rcu_adc_clock_config(RCU_ADCCK_APB2_DIV6);
	gpio_mode_set(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, U_max | U_min | I_max | I_min);
	adc_deinit();
	//ADC_dma_config();
	//adc_special_function_config(ADC_SCAN_MODE,ENABLE);
	//adc_special_function_config(ADC_CONTINUOUS_MODE,ENABLE);
	adc_external_trigger_source_config(ADC_REGULAR_CHANNEL,ADC_EXTTRIG_REGULAR_NONE);
	adc_data_alignment_config(ADC_DATAALIGN_RIGHT);
	adc_resolution_config(ADC_RESOLUTION_12B);
	adc_channel_length_config(ADC_REGULAR_CHANNEL, 4);
	adc_external_trigger_config(ADC_REGULAR_CHANNEL, ENABLE);
//	adc_regular_channel_config(0U, ADC_CHANNEL_3, ADC_SAMPLETIME_55POINT5);
//  adc_regular_channel_config(1U, ADC_CHANNEL_4, ADC_SAMPLETIME_55POINT5);
//  adc_regular_channel_config(2U, ADC_CHANNEL_5, ADC_SAMPLETIME_1POINT5);
//  adc_regular_channel_config(3U, ADC_CHANNEL_6, ADC_SAMPLETIME_1POINT5);
	
	adc_enable();
//	adc_enable();
	DelayNms(1);

	adc_calibration_enable();
	//adc_dma_mode_enable();
//	adc_software_trigger_enable(ADC_REGULAR_CHANNEL);
//	adc_software_trigger_enable(ADC_REGULAR_CHANNEL);
}

//float read_voltage(void)
//{
//	float value = 0.0;
//	uint32_t temp = 0;
//	if(adc_original_value[0] - adc_original_value[1] > 0)
//	{
//		temp = adc_original_value[0] -adc_original_value[1];
//		temp *= ADC_Vref;
//		temp *= 1000;
//		temp = temp >> 12;
//		temp *= ADC_V_Gain;
//		value = temp;
//		value /= 10.0;
//		value /= 1000.0;
//		value /= ADC_GEN;
//	}
//	return value;
//}

//void Bubble_Sort_(uint16_t arr[], unsigned short int len) 
//{
//	unsigned short int i, j;
//	uint16_t	temp;
//	for (i = 0; i < len - 1; i++)
//			for (j = 0; j < len - 1 - i; j++)
//					if (arr[j] > arr[j + 1]) 
//					{
//							temp = arr[j];
//							arr[j] = arr[j + 1];
//							arr[j + 1] = temp;
//					}
//}


//float read_current(void)
//{
//	float value = 0.0;
//	uint32_t temp = 0;
////	static int index = 0;
////	adc_val_1000[index] = adc_original_value[2];
////	index ++;
////	if(index == 1000)
////	{
////		index = 0;
////		Bubble_Sort_(adc_val_1000,1000);
////		memcpy(adc,adc_val_1000,2000);
////	}
//	
//		temp = abs(adc_original_value[3] - adc_original_value[2]);
//		temp *= ADC_Vref;
//		temp *= 1000;
//		temp *= ADC_I_Gain;
//		temp = temp >> 12;
//		value = temp;
//		value /= 10;
//		value /= 10.0;
//		value /= 1000.0;
//		value /= ADC_GEN;
//	
//	return value;
//}


void adc_channel_sample(uint16_t arr[])
{
    /* ADC regular channel config */
	adc_regular_channel_config(0U, ADC_CHANNEL_3, ADC_SAMPLETIME_55POINT5);
	
  adc_regular_channel_config(1U, ADC_CHANNEL_4, ADC_SAMPLETIME_55POINT5);
  adc_regular_channel_config(2U, ADC_CHANNEL_5, ADC_SAMPLETIME_55POINT5);
  adc_regular_channel_config(3U, ADC_CHANNEL_6, ADC_SAMPLETIME_55POINT5);
    /* ADC software trigger enable */
    adc_software_trigger_enable(ADC_REGULAR_CHANNEL);

    /* wait the end of conversion flag */
    while(!adc_flag_get(ADC_FLAG_EOC));
    /* clear the end of conversion flag */
    adc_flag_clear(ADC_FLAG_EOC);
    /* return regular channel sample value */
    arr[0] = adc_regular_data_read();
	
	//return (adc_regular_data_read();

}

uint16_t adc_channel_sample_V_P()
{
		adc_regular_channel_config(0U, ADC_CHANNEL_3, ADC_SAMPLETIME_1POINT5);
    /* ADC software trigger enable */
    adc_software_trigger_enable(ADC_REGULAR_CHANNEL);

    /* wait the end of conversion flag */
    while(!adc_flag_get(ADC_FLAG_EOC));
    /* clear the end of conversion flag */
    adc_flag_clear(ADC_FLAG_EOC);
    /* return regular channel sample value */
    return adc_regular_data_read();
}
uint16_t adc_channel_sample_V_S()
{
		adc_regular_channel_config(0U, ADC_CHANNEL_4, ADC_SAMPLETIME_1POINT5);
    /* ADC software trigger enable */
    adc_software_trigger_enable(ADC_REGULAR_CHANNEL);

    /* wait the end of conversion flag */
    while(!adc_flag_get(ADC_FLAG_EOC));
    /* clear the end of conversion flag */
    adc_flag_clear(ADC_FLAG_EOC);
    /* return regular channel sample value */
    return adc_regular_data_read();
}


uint16_t adc_channel_sample_I_P()
{
		adc_regular_channel_config(0U, ADC_CHANNEL_5, ADC_SAMPLETIME_1POINT5);
    /* ADC software trigger enable */
    adc_software_trigger_enable(ADC_REGULAR_CHANNEL);

    /* wait the end of conversion flag */
    while(!adc_flag_get(ADC_FLAG_EOC));
    /* clear the end of conversion flag */
    adc_flag_clear(ADC_FLAG_EOC);
    /* return regular channel sample value */
    return adc_regular_data_read();
}
uint16_t adc_channel_sample_I_S()
{
		adc_regular_channel_config(0U, ADC_CHANNEL_6, ADC_SAMPLETIME_1POINT5);
    /* ADC software trigger enable */
    adc_software_trigger_enable(ADC_REGULAR_CHANNEL);

    /* wait the end of conversion flag */
    while(!adc_flag_get(ADC_FLAG_EOC));
    /* clear the end of conversion flag */
    adc_flag_clear(ADC_FLAG_EOC);
    /* return regular channel sample value */
    return adc_regular_data_read();
}