#include "pin.h"

#define MODER_IN		0x0UL		
#define MODER_OUT		0x1UL		
#define MODER_ALTERNATE	0x2UL		
#define MODER_ANALOG	0x3UL	

#define OSPEEDR_LOW		0x0UL
#define OSPEEDR_MEDIUM	0x1UL
#define OSPEEDR_HIGH	0x3UL

#define PUPDR_NO_PULL	0x0UL
#define PUPDR_PULL_UP	0x1UL
#define PUPDR_PULL_DOWN	0x2UL

#define PIN_BASE ((GPIO_TypeDef *)(pinNo&~0xFF))

const uint32_t moderMode[5] = {
	MODER_ANALOG, 
	MODER_IN,
	MODER_OUT, 
	MODER_ANALOG,
	MODER_ALTERNATE
};

const uint32_t pinPort[3] = {
	RCC_AHBENR_GPIOAEN, 
	RCC_AHBENR_GPIOBEN, 
	RCC_AHBENR_GPIOFEN 
};

const uint32_t pinPullUpDown[3] = {
	PUPDR_NO_PULL,
	PUPDR_PULL_UP,
	PUPDR_PULL_DOWN
};

const uint32_t speedList[4] = {
	0,
	0,
	1,
	3
};

void setMode(pinNo_t pinNo, mode mode)
{
	init(pinNo);
	//Clear entry.
	PIN_BASE->MODER &=~ (0x3 << ((pinNo & 0x0F) * 2));
	//Set to corresponding mode.
	PIN_BASE->MODER |= (moderMode[mode] << ((pinNo & 0x0F) * 2));
}

void setOutputState(pinNo_t pinNo, state state)
{
	
}
 
void setPullUpDonw(pinNo_t pinNo, pullUpDown resistance)
{
    PIN_BASE->PUPDR &= ~(0x3 << ((pinNo & 0x0F) * 2));
    PIN_BASE->PUPDR |= (pinPullUpDown[resistance] << ((pinNo & 0x0F) * 2));
}
 
void setSpeed(pinNo_t pinNo, speed speed)
{
	PIN_BASE->OSPEEDR &= (0x3 << ((pinNo & 0x0F) * 2));	
	PIN_BASE->OSPEEDR |= (speedList[speed] << ((pinNo & 0x0F) * 2));
}
 
void config(pinNo_t pinNo, mode mode, state state, pullUpDown resistance, speed speed)
{
	
}
 

uint8_t get(pinNo_t pinNo)
{
	
}

void toggle(pinNo_t pinNo)
{
	
}

void set(pinNo_t pinNo, uint8_t state)
{
	if(state) {
		PIN_BASE->BSRR |= (GPIO_BSRR_BS_0 << ((pinNo & 0xF)));
		return;
	}
		PIN_BASE->BSRR |= (GPIO_BSRR_BR_0 << ((pinNo & 0xF)));
}

//Enable the pin port's clock
void init(pinNo_t pinNo)
{
	RCC->AHBENR |= pinPort[((pinNo & 0xF0)>>4)];
}

void deInit(pinNo_t pinNo)
{
	
}


void hardwareInfo(pinNo_t pinNo)
{
	
}

void throwError()
{
	
}