#include "Driver_GPIO.h"


//---------------------FONCTION D'INITIALISATION-----------------//
void MyGPIO_Init ( MyGPIO_Struct_TypeDef * GPIOStructPtr )
{
	
	/* Activation of the GPIO port specific clock */
	 if (GPIOStructPtr->GPIO == GPIOA)
	 {
    RCC->APB2ENR |= RCC_APB2ENR_IOPAEN;
   }
	 else if (GPIOStructPtr->GPIO == GPIOB)
	 {
		 RCC->APB2ENR |= RCC_APB2ENR_IOPBEN;
   }
	 else if (GPIOStructPtr->GPIO == GPIOC)
	 {
		 RCC->APB2ENR |= RCC_APB2ENR_IOPCEN;
   }
	 else if (GPIOStructPtr->GPIO == GPIOD)
	 {
	 RCC->APB2ENR |= RCC_APB2ENR_IOPDEN;
	 }
  
	
	/* Reset, and then configuration writing of the selected GPIO Pin */	
	if(GPIOStructPtr->GPIO_Pin <= 8)
	{
		GPIOStructPtr->GPIO->CRL &= ~0xF<<(4*(GPIOStructPtr->GPIO_Pin));
		GPIOStructPtr->GPIO->CRL |= (GPIOStructPtr->GPIO_Conf)<<(4*(GPIOStructPtr->GPIO_Pin));
	}
	else
	{
		GPIOStructPtr->GPIO->CRH &= ~0xF<<(4*((GPIOStructPtr->GPIO_Pin)%8));
		GPIOStructPtr->GPIO->CRH |= (GPIOStructPtr->GPIO_Conf)<<(4*((GPIOStructPtr->GPIO_Pin)%8));
	}
	
	if(GPIOStructPtr->GPIO_Conf == (char)In_PullDown)
	{
		GPIOStructPtr->GPIO->ODR &= ~(0x1<<(GPIOStructPtr->GPIO_Pin));
	}
	else if(GPIOStructPtr->GPIO_Conf == (char)In_PullUp)
	{
		GPIOStructPtr->GPIO->ODR |= 0x1<<(GPIOStructPtr->GPIO_Pin);
	}
}

//----------------------------READ--------------------------//
int MyGPIO_Read ( GPIO_TypeDef * GPIO , char GPIO_Pin ){
	int etatbit;
//On vérifie si la valeur lue dans l'IDR est un 0 ou un 1
	if((GPIO->IDR & (1<<GPIO_Pin))!=0){		
		etatbit = 1;
	}
	else{
		etatbit = 0;
	}
	return etatbit ;
}

//---------------------SET-------------------//
void MyGPIO_Set ( GPIO_TypeDef * GPIO , char GPIO_Pin ){
	GPIO->BSRR |= (1 << GPIO_Pin);
}

//---------------------RESET-----------------//
void MyGPIO_Reset ( GPIO_TypeDef * GPIO , char GPIO_Pin ){
	GPIO->BRR = (1 << GPIO_Pin); 
	//Pas besoin de | puisque les 0 n'impactent pas la fonction reset
}

//---------------------TOGGLE-----------------//
void MyGPIO_Toggle ( GPIO_TypeDef * GPIO , char GPIO_Pin ){
	GPIO->ODR ^= (1 << GPIO_Pin);
}