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#ifndef _GPIO_H_
#define _GPIO_H_
/* GPIO event detect types */
enum DETECT_TYPE {
DETECT_NONE,
DETECT_RISING,
DETECT_FALLING,
DETECT_HIGH,
DETECT_LOW,
DETECT_RISING_ASYNC,
DETECT_FALLING_ASYNC
};
/* GPIO pull up or down states */
enum PULL_STATE {
PULL_DISABLE,
PULL_UP,
PULL_DOWN,
PULL_RESERVED
};
/* Pin data direction */
enum GPIO_DIR {
GPIO_IN,
GPIO_OUT
};
/* GPIO pin setup */
void SetGpioFunction (unsigned int pinNum, unsigned int funcNum);
/* A simple wrapper around SetGpioFunction */
void SetGpioDirection (unsigned int pinNum, enum GPIO_DIR dir);
/* Set GPIO output level */
void SetGpio (unsigned int pinNum, unsigned int pinVal);
/* Read GPIO pin level */
int ReadGpio (unsigned int pinNum);
/* GPIO pull up/down resistor control function (NOT YET IMPLEMENTED) */
int PudGpio (unsigned int pinNum, enum PULL_STATE state);
/* Interrupt related functions */
void EnableGpioDetect (unsigned int pinNum, enum DETECT_TYPE type);
void DisableGpioDetect (unsigned int pinNum, enum DETECT_TYPE type);
void ClearGpioInterrupt (unsigned int pinNum);
#endif
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