#include <stm32f10x.h>
#include <Girouette.h>
#include <MyTimer.h>
#include <GPIO.h>

void (*Ptr_fct_girouette) (void);

void Timer_Counter (TIM_TypeDef *Timer) {
	Timer->CCMR1 |= TIM_CCMR1_CC1S_0;
	Timer->CCMR1 |= TIM_CCMR1_CC2S_0;
	
	Timer->CCER &= ~(TIM_CCER_CC1P);
	Timer->CCER &= ~(TIM_CCER_CC1NP);
	Timer->CCMR1 &= ~(TIM_CCMR1_IC1F);
	
	Timer->CCER &= ~(TIM_CCER_CC2P);
	Timer->CCER &= ~(TIM_CCER_CC2NP);
	Timer->CCMR1 &= ~(TIM_CCMR1_IC2F);
	Timer->SMCR |= 0x0003;
	Timer->CR1 |= TIM_CR1_CEN;
}

void Init_girouette (){
	MyTimer_Init(TIM4, 1440, 1);
	MyTimer_Base_Start(TIM4);
	MyGPIO_Init(GPIOB, 6, In_Floating);
	MyGPIO_Init(GPIOB, 7, In_Floating);
	MyGPIO_Init(GPIOA, 12, In_Floating);
	Init_Interrupt(3, LafonctGirouette);
	Timer_Counter(TIM4);
}

//Fonctio girouette appeler pour l'interruption
void LafonctGirouette(){
	TIM4->CNT = 0;
}

void Init_Interrupt(char Prio, void (*IT_function) (void)){
	RCC->APB2ENR |= RCC_APB2ENR_AFIOEN;
	AFIO->EXTICR[3] &= ~(0xF);
	EXTI->IMR |= 1<<12;
	EXTI->RTSR |= 1<<12;
	NVIC->ISER[1] |= NVIC_ISER_SETENA_8; // exti 12 on s'est trompé mais normalement c'est bo mtn
	Ptr_fct_girouette = IT_function;
	NVIC->IPR[40] = Prio<<4;
}

void EXTI15_10_IRQHandler (){
	EXTI->PR |= 1 << 12;
	Ptr_fct_girouette();
}