#include "MyTimer.h"
#include "stm32f10x.h"

void (*pointeur_fonction_Timer1)(void);
void (*pointeur_fonction_Timer2)(void);
void (*pointeur_fonction_Timer3)(void);
void (*pointeur_fonction_Timer4)(void);

void MyTimer_Base_Init(TIM_TypeDef *Timer, unsigned short ValARR, unsigned short ValPSC)
{
	if (Timer == TIM2)
	{
		RCC->APB1ENR |= RCC_APB1ENR_TIM2EN;
	}
	else if (Timer == TIM3)
	{
		RCC->APB1ENR |= RCC_APB1ENR_TIM3EN;
	}
	else if (Timer == TIM4)
	{
		RCC->APB1ENR |= RCC_APB1ENR_TIM4EN;
	}
	else if (Timer == TIM1)
	{
		RCC->APB2ENR |= RCC_APB2ENR_TIM1EN;
	}
	MyTimer_Base_Start(Timer);
	Timer->ARR=ValARR-1;
	Timer->PSC=ValPSC-1;
}

void MyTimer_ActiveIT(TIM_TypeDef * Timer, char Prio, void (*interrupt) (void))
{
	if (Timer == TIM2)
	{
		NVIC->IPR[28] = Prio<<4;
		pointeur_fonction_Timer2=interrupt;
	}
	else if (Timer == TIM3)
	{
		NVIC->IPR[29] = Prio<<4;
		pointeur_fonction_Timer3=interrupt;
	}
	else if (Timer == TIM4)
	{
		NVIC->IPR[30] = Prio<<4;
		pointeur_fonction_Timer4=interrupt;
	}
	else if (Timer == TIM1)
	{
		NVIC->IPR[25] = Prio<<4;
		pointeur_fonction_Timer1=interrupt;
	}
}	

void MyTimer_PWM(TIM_TypeDef * Timer, char Channel)
{
	if (Timer == TIM2 || Timer == TIM3 || Timer == TIM4)
	{
		if (Channel == 1 || Channel == 2)
		{
			Timer->CCMR1 &= ~(0x1 << 8*(Channel - 1));
			Timer->CCMR1 |= (6 << 4);
			Timer->CCER |= (1 << 4*(Channel - 1));
		}
		else if (Channel == 3 || Channel == 4)
		{
			Timer->CCMR2 &= ~(0x1 << 8*(Channel - 3));
			Timer->CCMR2 |= (6 << 4);
			Timer->CCER |= (1 << 4*(Channel - 3));
		}
	}
}

void MyTimer_PWM_Setup(TIM_TypeDef * Timer, char dutycycle, char channel)
{
	
	if (channel ==1){
		Timer->CCR1 = ((Timer->ARR)*(dutycycle))/100;
	}else if (channel ==2){
		Timer->CCR2 = (Timer->ARR*(dutycycle))/100;
	}else if (channel ==3){
		Timer->CCR3 = (Timer->ARR*(dutycycle))/100;
	}else if (channel ==4){
		Timer->CCR4 = (Timer->ARR*(dutycycle))/100;
	} 
	
}

void TIM1_UP_IRQHandler(void)
{
	TIM1->SR &= ~TIM_SR_UIF;
	pointeur_fonction_Timer1();

}

void TIM2_IRQHandler(void)
{
	TIM2->SR &= ~TIM_SR_UIF;
	pointeur_fonction_Timer2();
}

void TIM3_IRQHandler(void)
{
	TIM3->SR &= ~TIM_SR_UIF;
	pointeur_fonction_Timer3();
}
void TIM4_IRQHandler(void)
{
	TIM4->SR &= ~TIM_SR_UIF;
	pointeur_fonction_Timer4();
}