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/**************************************************************************//**
* @file gpio.c
* @version V3.00
* $Revision: 4 $
* $Date: 14/01/28 10:49a $
* @brief M051 series GPIO driver source file
*
* @note
* Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include "M051Series.h"
/** @addtogroup M051_Device_Driver M051 Device Driver
@{
*/
/** @addtogroup M051_GPIO_Driver GPIO Driver
@{
*/
/** @addtogroup M051_GPIO_EXPORTED_FUNCTIONS GPIO Exported Functions
@{
*/
/**
* @brief Set GPIO operation mode
*
* @param[in] port GPIO port. It could be P0, P1, P2, P3 or P4.
* @param[in] u32PinMask The single or multiple pins of specified GPIO port. It could be BIT0 ~ BIT7.
* @param[in] u32Mode Operation mode. GPIO_PMD_INPUT, GPIO_PMD_OUTPUT, GPIO_PMD_OPEN_DRAIN, GPIO_PMD_QUASI
*
* @return None
*
* @details This function is used to set specified GPIO operation mode.
*/
void GPIO_SetMode(GPIO_T *port, uint32_t u32PinMask, uint32_t u32Mode)
{
uint32_t i;
for(i = 0; i < GPIO_PIN_MAX; i++)
{
if(u32PinMask & (1 << i))
{
port->PMD = (port->PMD & ~(0x3 << (i << 1))) | (u32Mode << (i << 1));
}
}
}
/**
* @brief Enable GPIO interrupt
*
* @param[in] port GPIO port. It could be P0, P1, P2, P3 or P4.
* @param[in] u32Pin The pin of specified GPIO port. It could be 0 ~ 7.
* @param[in] u32IntAttribs The interrupt attribute of specified GPIO pin. It could be \n
* GPIO_INT_RISING, GPIO_INT_FALLING, GPIO_INT_BOTH_EDGE, GPIO_INT_HIGH, GPIO_INT_LOW.
*
* @return None
*
* @details This function is used to enable specified GPIO pin interrupt.
*/
void GPIO_EnableInt(GPIO_T *port, uint32_t u32Pin, uint32_t u32IntAttribs)
{
port->IMD |= (((u32IntAttribs >> 24) & 0xFFUL) << u32Pin);
port->IEN |= ((u32IntAttribs & 0xFFFFFFUL) << u32Pin);
}
/**
* @brief Disable GPIO interrupt
*
* @param[in] port GPIO port. It could be P0, P1, P2, P3 or P4.
* @param[in] u32Pin The pin of specified GPIO port. It could be 0 ~ 7.
*
* @return None
*
* @details This function is used to enable specified GPIO pin interrupt.
*/
void GPIO_DisableInt(GPIO_T *port, uint32_t u32Pin)
{
port->IMD &= ~(1UL << u32Pin);
port->IEN &= ~((0x00010001UL) << u32Pin);
}
/*@}*/ /* end of group M051_GPIO_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group M051_GPIO_Driver */
/*@}*/ /* end of group M051_Device_Driver */
/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
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