/**************************************************************************//** * @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. ***/