#include "Alimentation.h"


void alimentation_init(void){
    RCC -> CFGR |= (0x1<<15);
    RCC-> CFGR &= ~ (0x1<<14);
    LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_ADC1);
		LL_APB1_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOC);
		
    LL_GPIO_InitTypeDef pc2;
		LL_ADC_InitTypeDef adc;
    LL_ADC_REG_InitTypeDef adcReg;
    
		LL_GPIO_StructInit(&pc2);
		pc2.Pin = LL_GPIO_PIN_0;
		pc2.Mode = LL_GPIO_MODE_ANALOG;
		LL_GPIO_Init(GPIOC, &pc2);
	
	
		adc.DataAlignment = LL_ADC_DATA_ALIGN_RIGHT;
		adc.SequencersScanMode = LL_ADC_SEQ_SCAN_DISABLE;
		LL_ADC_Init(ADC1, &adc);
	
    adcReg.TriggerSource = LL_ADC_REG_TRIG_SOFTWARE ;
    adcReg.SequencerLength = LL_ADC_REG_SEQ_SCAN_DISABLE;
    adcReg.SequencerDiscont = LL_ADC_REG_SEQ_DISCONT_DISABLE;
    adcReg.ContinuousMode = LL_ADC_REG_CONV_SINGLE;
    adcReg.DMATransfer = LL_ADC_REG_DMA_TRANSFER_NONE;    
    
    
    LL_ADC_REG_Init(ADC1, &adcReg);
    
		/*LL_ADC_SetChannelSamplingTime(ADC2, LL_ADC_CHANNEL_10, LL_ADC_SAMPLINGTIME_1CYCLE_5);
		LL_ADC_SetChannelSamplingTime(ADC2, LL_ADC_CHANNEL_11, LL_ADC_SAMPLINGTIME_1CYCLE_5);
    
    */
    LL_ADC_Enable(ADC1);
    
    //LL_ADC_EnableIT_EOS(ADC1);
    //wait 0,2 µs, calibration is advised 
    //LL_ADC_StartCalibration(ADC1);
	}
float u2;
unsigned int niv_batterie;
	float battery_level;
	float get_battery_level(void){
		LL_ADC_REG_SetSequencerRanks(ADC1, LL_ADC_REG_RANK_1, LL_ADC_CHANNEL_12);
		LL_ADC_REG_StartConversionSWStart(ADC1);	
		while (LL_ADC_IsActiveFlag_EOS(ADC1) != 1);
		battery_level = LL_ADC_REG_ReadConversionData12(ADC1);
		u2 = (battery_level*3.3)/4095.0;
		float level = u2*13.0;	
		return level;
}
	
	int is_level_enough(void){
		if (get_battery_level()<(0.8*12)){
			return 0;
		}else{
			return 1;
		}
	}