94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
/**************************************************************************//**
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* @file gpio.c
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* @version V1.00
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* $Revision: 3 $
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* $Date: 14/09/29 3:50p $
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* @brief Nano100 series GPIO driver source file
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*
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* @note
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* Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved.
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*****************************************************************************/
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#include "Nano100Series.h"
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/** @addtogroup NANO100_Device_Driver NANO100 Device Driver
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@{
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*/
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/** @addtogroup NANO100_GPIO_Driver GPIO Driver
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@{
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*/
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/** @addtogroup NANO100_GPIO_EXPORTED_FUNCTIONS GPIO Exported Functions
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@{
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*/
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/**
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* @brief Set GPIO operation mode
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*
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* @param[in] gpio GPIO port. It could be \ref PA, \ref PB, \ref PC, \ref PD, \ref PE or \ref PF
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* @param[in] u32PinMask The single or multiple pins of specified GPIO port.
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* @param[in] u32Mode Operation mode. \ref GPIO_PMD_INPUT, \ref GPIO_PMD_OUTPUT, \ref GPIO_PMD_OPEN_DRAIN
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*
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* @return None
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*
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* @details This function is used to set specified GPIO operation mode.
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*/
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void GPIO_SetMode(GPIO_T *gpio, uint32_t u32PinMask, uint32_t u32Mode)
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{
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uint32_t i;
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for (i=0; i<GPIO_PIN_MAX; i++) {
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if (u32PinMask & (1 << i)) {
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gpio->PMD = (gpio->PMD & ~(0x3 << (i << 1))) | (u32Mode << (i << 1));
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}
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}
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}
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/**
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* @brief Enable GPIO interrupt
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*
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* @param[in] gpio GPIO port. It could be \ref PA, \ref PB, \ref PC, \ref PD, \ref PE or \ref PF
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* @param[in] u32Pin The pin of specified GPIO port. It could be 0 ~ 15
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* @param[in] u32IntAttribs The interrupt attribute of specified GPIO pin. It could be \n
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* \ref GPIO_INT_RISING, \ref GPIO_INT_FALLING, \ref GPIO_INT_BOTH_EDGE, \ref GPIO_INT_HIGH, \ref GPIO_INT_LOW
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*
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* @return None
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*
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* @details This function is used to enable specified GPIO pin interrupt.
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*/
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void GPIO_EnableInt(GPIO_T *gpio, uint32_t u32Pin, uint32_t u32IntAttribs)
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{
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gpio->IMD |= (((u32IntAttribs >> 24) & 0xFFUL) << u32Pin);
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gpio->IER |= ((u32IntAttribs & 0xFFFFFFUL) << u32Pin);
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}
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/**
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* @brief Disable GPIO interrupt
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*
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* @param[in] gpio GPIO port. It could be \ref PA, \ref PB, \ref PC, \ref PD, \ref PE or \ref PF
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* @param[in] u32Pin The pin of specified GPIO port. It could be 0 ~ 15
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*
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* @return None
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*
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* @details This function is used to enable specified GPIO pin interrupt.
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*/
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void GPIO_DisableInt(GPIO_T *gpio, uint32_t u32Pin)
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{
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gpio->IMD &= ~(1UL << u32Pin);
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gpio->IER &= ~((0x00010001UL) << u32Pin);
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}
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/*@}*/ /* end of group NANO100_GPIO_EXPORTED_FUNCTIONS */
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/*@}*/ /* end of group NANO100_GPIO_Driver */
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/*@}*/ /* end of group NANO100_Device_Driver */
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/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
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