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/**************************************************************************//**
* @file gpio.c
* @version V1.00
* $Revision: 9 $
* $Date: 14/10/06 11:47a $
* @brief NUC472/NUC442 GPIO driver source file
*
* @note
* Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include "NUC472_442.h"
/** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
@{
*/
/** @addtogroup NUC472_442_GPIO_Driver GPIO Driver
@{
*/
/** @addtogroup NUC472_442_GPIO_EXPORTED_FUNCTIONS GPIO Exported Functions
@{
*/
/**
* @brief Set GPIO operation mode
*
* @param[in] gpio GPIO port. It could be \ref PA, \ref PB, ... or \ref GPI
* @param[in] u32PinMask The single or multiple pins of specified GPIO port.
* @param[in] u32Mode Operation mode. \ref GPIO_MODE_INPUT, \ref GPIO_MODE_OUTPUT, \ref GPIO_MODE_OPEN_DRAIN, \ref GPIO_MODE_QUASI
*
* @return None
*
* @details This function is used to set specified GPIO operation mode.
*/
void GPIO_SetMode(GPIO_T *gpio, uint32_t u32PinMask, uint32_t u32Mode)
{
uint32_t i;
for (i=0; i<GPIO_PIN_MAX; i++) {
if (u32PinMask & (1 << i)) {
gpio->MODE = (gpio->MODE & ~(0x3 << (i << 1))) | (u32Mode << (i << 1));
}
}
}
/**
* @brief Enable GPIO interrupt
*
* @param[in] gpio GPIO port. It could be \ref PA, \ref PB, ... or \ref GPI
* @param[in] u32Pin The pin of specified GPIO port. It could be 0 ~ 15.
* @param[in] u32IntAttribs The interrupt attribute of specified GPIO pin. It could be \n
* \ref GPIO_INT_RISING, \ref GPIO_INT_FALLING, \ref GPIO_INT_BOTH_EDGE, \ref GPIO_INT_HIGH, GPIO_INT_LOW
*
* @return None
*
* @details This function is used to enable specified GPIO pin interrupt.
*/
void GPIO_EnableInt(GPIO_T *gpio, uint32_t u32Pin, uint32_t u32IntAttribs)
{
gpio->INTTYPE |= (((u32IntAttribs >> 24) & 0xFFUL) << u32Pin);
gpio->INTEN |= ((u32IntAttribs & 0xFFFFFFUL) << u32Pin);
}
/**
* @brief Disable GPIO interrupt
*
* @param[in] gpio GPIO port. It could be \ref PA, \ref PB, ... or \ref GPI
* @param[in] u32Pin The pin of specified GPIO port. It could be 0 ~ 15.
*
* @return None
*
* @details This function is used to disable specified GPIO pin interrupt.
*/
void GPIO_DisableInt(GPIO_T *gpio, uint32_t u32Pin)
{
gpio->INTTYPE &= ~(1UL << u32Pin);
gpio->INTEN &= ~((0x00010001UL) << u32Pin);
}
/*@}*/ /* end of group NUC472_442_GPIO_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group NUC472_442_GPIO_Driver */
/*@}*/ /* end of group NUC472_442_Device_Driver */
/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
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