101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
/**************************************************************************//**
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* @file gpio.c
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* @version V3.00
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* $Revision: 9 $
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* $Date: 15/05/04 3:59p $
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* @brief GPIO driver source file
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*
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* @note
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* SPDX-License-Identifier: Apache-2.0
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* Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved.
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*****************************************************************************/
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#include "NUC200Series.h"
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/** @addtogroup Standard_Driver Standard Driver
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@{
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*/
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/** @addtogroup GPIO_Driver GPIO Driver
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@{
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*/
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/** @addtogroup 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] port GPIO port. It could be PA, PB, PC, PD, PE or PF.
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* @param[in] u32PinMask The single or multiple pins of specified GPIO port.
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* It could be BIT0 ~ BIT15 for PA, PB, PC, PD and PE GPIO port.
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* It could be BIT0 ~ BIT3 for PF GPIO port.
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* @param[in] u32Mode Operation mode. . It could be \n
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* GPIO_PMD_INPUT, GPIO_PMD_OUTPUT, GPIO_PMD_OPEN_DRAIN, GPIO_PMD_QUASI.
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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 *port, 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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{
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if(u32PinMask & (1 << i))
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{
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port->PMD = (port->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] port GPIO port. It could be PA, PB, PC, PD, PE or PF.
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* @param[in] u32Pin The pin of specified GPIO port.
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* It could be 0 ~ 15 for PA, PB, PC, PD and PE GPIO port.
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* It could be 0 ~ 3 for PF GPIO port.
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* @param[in] u32IntAttribs The interrupt attribute of specified GPIO pin. It could be \n
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* GPIO_INT_RISING, GPIO_INT_FALLING, GPIO_INT_BOTH_EDGE, GPIO_INT_HIGH, 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 *port, uint32_t u32Pin, uint32_t u32IntAttribs)
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{
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port->IMD |= (((u32IntAttribs >> 24) & 0xFFUL) << u32Pin);
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port->IEN |= ((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] port GPIO port. It could be PA, PB, PC, PD, PE or PF.
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* @param[in] u32Pin The pin of specified GPIO port.
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* It could be 0 ~ 15 for PA, PB, PC, PD and PE GPIO port.
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* It could be 0 ~ 3 for PF GPIO port.
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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 *port, uint32_t u32Pin)
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{
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port->IMD &= ~(1UL << u32Pin);
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port->IEN &= ~((0x00010001UL) << u32Pin);
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}
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/*@}*/ /* end of group GPIO_EXPORTED_FUNCTIONS */
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/*@}*/ /* end of group GPIO_Driver */
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/*@}*/ /* end of group Device_Driver */
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/*** (C) COPYRIGHT 2014 Nuvoton Technology Corp. ***/
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