152 lines
5.0 KiB
C
152 lines
5.0 KiB
C
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/**************************************************************************//**
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* @file gpio.c
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* @brief GPIO driver source file
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*
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* SPDX-License-Identifier: Apache-2.0
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* @copyright (C) 2018 Nuvoton Technology Corp. All rights reserved.
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*****************************************************************************/
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#include "nuc980.h"
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#include "nu_gpio.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 It could be PA, PB, PC, PD, PE, PF, PG or PH.
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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, PF and PH GPIO port.
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* It could be BIT0 ~ BIT13 for PE GPIO port.
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* It could be BIT0 ~ BIT11 for PG GPIO port.
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* @param[in] u32Mode Operation mode. It could be \n
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* GPIO_MODE_INPUT, GPIO_MODE_OUTPUT, GPIO_MODE_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 *port, uint32_t u32PinMask, uint32_t u32Mode)
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{
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uint32_t i;
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for (i = 0ul; i < GPIO_PIN_MAX; i++)
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{
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if ((u32PinMask & (1ul << i)) == (1ul << i))
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{
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port->MODE = (port->MODE & ~(0x3ul << (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 It could be PA, PB, PC, PD, PE, PF, PG or PH.
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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, PF and PH GPIO port.
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* It could be 0 ~ 13 for PE GPIO port.
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* It could be 0 ~ 11 for PG 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->INTTYPE |= (((u32IntAttribs >> 24) & 0xFFUL) << u32Pin);
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port->INTEN |= ((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 It could be PA, PB, PC, PD, PE, PF, PG or PH.
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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, PF and PH GPIO port.
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* It could be 0 ~ 13 for PE GPIO port.
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* It could be 0 ~ 11 for PG 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 disable 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->INTTYPE &= ~(1UL << u32Pin);
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port->INTEN &= ~((0x00010001UL) << u32Pin);
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}
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/**
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* @brief Set GPIO slew rate control
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*
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* @param[in] port GPIO port. It could be \ref PA, \ref PB, ... or \ref PG
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* @param[in] u32PinMask The single or multiple pins of specified GPIO port.
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* @param[in] u32Mode Slew rate mode. \ref GPIO_SLEWCTL_NORMAL (maximum 40 MHz at 2.7V)
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* \ref GPIO_SLEWCTL_HIGH (maximum 80 MHz at 2.7V)
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* \ref GPIO_SLEWCTL_FAST (maximum 100 MHz at 2.7V)
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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_SetSlewCtl(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 = 0ul; i < GPIO_PIN_MAX; i++)
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{
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if (u32PinMask & (1ul << i))
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{
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port->SLEWCTL = (port->SLEWCTL & ~(0x3ul << (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 Set GPIO Pull-up and Pull-down control
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*
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* @param[in] port GPIO port. It could be \ref PA, \ref PB, ... or \ref PG
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* @param[in] u32PinMask The pin of specified GPIO port. It could be 0 ~ 15.
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* @param[in] u32Mode The pin mode of specified GPIO pin. It could be
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* \ref GPIO_PUSEL_DISABLE
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* \ref GPIO_PUSEL_PULL_UP
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* \ref GPIO_PUSEL_PULL_DOWN
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*
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* @return None
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*
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* @details Set the pin mode of specified GPIO pin.
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*/
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void GPIO_SetPullCtl(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 = 0ul; i < GPIO_PIN_MAX; i++)
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{
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if (u32PinMask & (1ul << i))
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{
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port->PUSEL = (port->PUSEL & ~(0x3ul << (i << 1))) | (u32Mode << (i << 1));
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}
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}
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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 Standard_Driver */
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