#include "stdint.h"
#include "main.h"
#include "adc.h"
#include "Hal_adc.h"

#include "dma.h"
#include "stm32l4xx_hal_dma.h"
/**
 * @brief half PWM duty trigger start adc. when adc convert complete and trigger DMA interrupt. do filt in the interrupt callbackfun.
 *
 */
typedef void (*ADC_RESULTFILTER_t)(uint16_t input, uint16_t *output);
extern uint16_t Hal_GetADCChannelValue(uint8_t channel);
static void Hal_AdcDmaCallback(DMA_HandleTypeDef *_hdma);
static void Hal_PCBTemperatureFilter(uint16_t input, uint16_t *output);
static void Hal_BusVoltageFilter(uint16_t input, uint16_t *output);
static void Hal_BusCurrentFilter(uint16_t input, uint16_t *output);
static void Hal_PhaseCurrentFilter(uint16_t input, uint16_t *output);
static void Hal_MCUTemperFilter(uint16_t input, uint16_t *output);
static void Hal_MCUVoltageFilter(uint16_t input, uint16_t *output);

static uint16_t Hal_O_AdcFilterResult[7] = {0};
static volatile uint16_t Hal_ADC_DMA_RawResult[7] = {0};
static const ADC_RESULTFILTER_t Hal_adcResultFilterFun[MAX_ADC_CHANNEL_NUM] = {Hal_PCBTemperatureFilter, Hal_BusVoltageFilter, Hal_BusCurrentFilter, Hal_PhaseCurrentFilter, Hal_MCUTemperFilter, Hal_MCUVoltageFilter};

/**
 * @brief 
 * 
 */
extern void Hal_ADCInit(void)
{

    HAL_DMA_RegisterCallback(&hdma_adc1, HAL_DMA_XFER_CPLT_CB_ID, Hal_AdcDmaCallback);
    HAL_ADC_Start_DMA(&hadc1, (uint32_t *)&Hal_ADC_DMA_RawResult, 6);
}

extern uint16_t Hal_GetADCChannelValue(uint8_t channel)
{
    uint16_t retvalue = 0;
    if (channel < MAX_ADC_CHANNEL_NUM)
    {
        retvalue = Hal_O_AdcFilterResult[channel];
    }
    else
    {
    }
    return retvalue;
}
static void Hal_AdcDmaCallback(DMA_HandleTypeDef *_hdma)
{
    uint8_t i = 0;
    for (i = 0; i < MAX_ADC_CHANNEL_NUM; i++)
    {
        Hal_adcResultFilterFun[i](Hal_ADC_DMA_RawResult[i], &Hal_O_AdcFilterResult[i]);
    }
}

static void Hal_PCBTemperatureFilter(uint16_t input, uint16_t *output)
{
    uint16_t temp = *output;
    *output = 3u * (temp >> 2u) + (input >> 2u);
}
static void Hal_BusVoltageFilter(uint16_t input, uint16_t *output)
{
    uint16_t temp = *output;
    *output = 7u * (temp >> 3u) + (input >> 3u);
}
static void Hal_BusCurrentFilter(uint16_t input, uint16_t *output)
{
    uint16_t temp = *output;
    *output = 3u * (temp >> 2u) + (input >> 2u);
}
static void Hal_PhaseCurrentFilter(uint16_t input, uint16_t *output)
{
    uint16_t temp = *output;
    *output = 3u * (temp >> 2u) + (input >> 2u);
}
static void Hal_MCUTemperFilter(uint16_t input, uint16_t *output)
{
    uint16_t temp = *output;
    *output = 3u * (temp >> 2u) + (input >> 2u);
}
static void Hal_MCUVoltageFilter(uint16_t input, uint16_t *output)
{
    uint16_t temp = *output;
    *output = 3u * (temp >> 2u) + (input >> 2u);
}