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gpio.h
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gpio.h
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/*
Project: 1Sheeld Firmware
File: gpio.h
Compiler: avr-gcc 3.4.2
Author: Integreight
Date: 2014.5
*/
/**
* @file gpio.h
* @brief GPIO driver for configuring and dealing with GPIOs on ATmega162
* @author Integreight
* @version 1.1
*/
#ifndef GPIO_H_
#define GPIO_H_
#include "pwm.h"
typedef struct
{
uint8_t portInReg;//pin
uint8_t portDirReg;//ddrc
uint8_t portOutReg;//portc
}t_stPort;
typedef struct
{
uint8_t Portdir;
uint16_t pID;
}t_SetPortCfg;
/**
* @brief Sets the registers for a pin in a certain port to be an output.
* @param *cfg pointer to the t_SetPortCfg structure .
* @return None.
*/
void setPinModeOutput(t_SetPortCfg* cfg, uint8_t bit);
/**
* @brief Sets the registers for a pin in a certain port to be an input.
* @param *cfg pointer to the t_SetPortCfg structure .
* @return None.
*/
void setPinModeInput(t_SetPortCfg* cfg, uint8_t bit);
/**
* @brief Gets a certain value from pin of certain port.
* @param pid the port id.
* @param pinNum pin number.
* @return None.
*/
uint8_t getPinValue(uint16_t pid,uint8_t pinNum);
/**
* @brief Sets a certain value to a pin of certain port.
* @param data data to be put on the pin.
* @param pid the port id.
* @param pinNum pin number.
* @return None.
*/
void setPinValue(uint8_t data,uint16_t pid,uint8_t pinNum);
/**
* @brief Reads the value of a certain digital pin
* @param pinNumber pin number
* @return current state of the pin
*/
uint8_t digitalRead(uint8_t);
/**
* @brief Output a value to a digital pin
* @param pinNumber pin number
* @param value HIGH or LOW
* @return None
*/
void digitalWrite(uint8_t, uint8_t);
/**
* @brief Sets the pin whether it's Input, Output or PWM
* @param pinNumber pin number
* @param pinMode Mode (INPUT/OUTPUT/PWM)
* @return None
*/
void setPinMode(uint8_t , uint8_t);
/**
* @brief Sets the duty cycle of a PWM pin.
* @param pinNumber pwm pin number
* @param val duty cycle 0 --> 255
* @return None
*/
void analogWrite(uint8_t, int16_t);
/**
* @brief output a value to the whole port
* @param port port number
* @param value the value of the whole port to be output
* @param bitmask masks the port to protect some pins and to retain their values
* @return None
*/
void writePort(uint8_t, uint8_t, uint8_t);
/**
* @brief reads the whole port value
* @param port port number to be red
* @param bitmask masks the port to protect some pins and to retain their values
* @return None
*/
uint8_t readPort(uint8_t, uint8_t);
/**
* @brief Sets all unused pins to be Output
* @param None
* @return None
*/
void setUnusedPinsAsOutput();
#endif /* GPIO_H_ */