#include "Driver_GPIO.h"


//---------------------FONCTION D'INITIALISATION-----------------//
void MyGPIO_Init ( MyGPIO_Struct_TypeDef * GPIOStructPtr){
	
//INITIALISATION DE LA CLOCK CORRESPONDANT AU GPIO A, B ou C
	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;
	}
	
//CONFIGURATION DE LA PIN	UTILISEE (voir table20 p9.1)
	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));
	}

//CONFIGURATION DE L'ODR EN ENTREE (pull up et down uniquement)
	if(GPIOStructPtr->GPIO_Conf == In_PullUp){
		GPIOStructPtr->GPIO->ODR = 0x1;
	}
	else if(GPIOStructPtr->GPIO_Conf == In_PullDown){
		GPIOStructPtr->GPIO->ODR = 0x0;
	}
}

//----------------------------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);
}