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/**************************************************************************//**
* @file gpio.c
* @brief GPIO driver source file
*
* SPDX-License-Identifier: Apache-2.0
* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include "NuMicro.h"
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup GPIO_Driver GPIO Driver
@{
*/
/** @addtogroup GPIO_EXPORTED_FUNCTIONS GPIO Exported Functions
@{
*/
/**
* @brief Set GPIO operation mode
*
* @param[in] port GPIO port. It could be PA, PB, PC, PD, PE, PF, PG or PH.
* @param[in] u32PinMask The single or multiple pins of specified GPIO port.
* It could be BIT0 ~ BIT15 for PA, PB, PC, PD, PF and PH GPIO port.
* It could be BIT0 ~ BIT13 for PE GPIO port.
* It could be BIT0 ~ BIT11 for PG GPIO port.
* @param[in] u32Mode Operation mode. It could be \n
* GPIO_MODE_INPUT, GPIO_MODE_OUTPUT, GPIO_MODE_OPEN_DRAIN, GPIO_MODE_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 = 0ul; i < GPIO_PIN_MAX; i++)
{
if ((u32PinMask & (1ul << i)) == (1ul << i))
{
port->MODE = (port->MODE & ~(0x3ul << (i << 1))) | (u32Mode << (i << 1));
}
}
}
/**
* @brief Enable GPIO interrupt
*
* @param[in] port GPIO port. It could be PA, PB, PC, PD, PE, PF, PG or PH.
* @param[in] u32Pin The pin of specified GPIO port.
* It could be 0 ~ 15 for PA, PB, PC, PD, PF and PH GPIO port.
* It could be 0 ~ 13 for PE GPIO port.
* It could be 0 ~ 11 for PG GPIO port.
* @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->INTTYPE = (port->INTTYPE & ~(1ul << u32Pin)) | (((u32IntAttribs >> 24) & 0xFFUL) << u32Pin);
port->INTEN = (port->INTEN & ~(0x00010001ul << u32Pin)) | ((u32IntAttribs & 0xFFFFFFUL) << u32Pin);
}
/**
* @brief Disable GPIO interrupt
*
* @param[in] port GPIO port. It could be PA, PB, PC, PD, PE, PF, PG or PH.
* @param[in] u32Pin The pin of specified GPIO port.
* It could be 0 ~ 15 for PA, PB, PC, PD, PF and PH GPIO port.
* It could be 0 ~ 13 for PE GPIO port.
* It could be 0 ~ 11 for PG GPIO port.
*
* @return None
*
* @details This function is used to disable specified GPIO pin interrupt.
*/
void GPIO_DisableInt(GPIO_T *port, uint32_t u32Pin)
{
port->INTTYPE &= ~(1UL << u32Pin);
port->INTEN &= ~((0x00010001UL) << u32Pin);
}
/**
* @brief Set GPIO slew rate control
*
* @param[in] port GPIO port. It could be \ref PA, \ref PB, ... or \ref GPH
* @param[in] u32PinMask The single or multiple pins of specified GPIO port.
* @param[in] u32Mode Slew rate mode. \ref GPIO_SLEWCTL_NORMAL (maximum 40 MHz at 2.7V)
* \ref GPIO_SLEWCTL_HIGH (maximum 80 MHz at 2.7V)
* \ref GPIO_SLEWCTL_FAST (maximum 100 MHz at 2.7V)
*
* @return None
*
* @details This function is used to set specified GPIO operation mode.
*/
void GPIO_SetSlewCtl(GPIO_T *port, uint32_t u32PinMask, uint32_t u32Mode)
{
uint32_t i;
for (i = 0ul; i < GPIO_PIN_MAX; i++)
{
if (u32PinMask & (1ul << i))
{
port->SLEWCTL = (port->SLEWCTL & ~(0x3ul << (i << 1))) | (u32Mode << (i << 1));
}
}
}
/**
* @brief Set GPIO Pull-up and Pull-down control
*
* @param[in] port GPIO port. It could be \ref PA, \ref PB, ... or \ref GPH
* @param[in] u32PinMask The pin of specified GPIO port. It could be 0 ~ 15.
* @param[in] u32Mode The pin mode of specified GPIO pin. It could be
* \ref GPIO_PUSEL_DISABLE
* \ref GPIO_PUSEL_PULL_UP
* \ref GPIO_PUSEL_PULL_DOWN
*
* @return None
*
* @details Set the pin mode of specified GPIO pin.
*/
void GPIO_SetPullCtl(GPIO_T *port, uint32_t u32PinMask, uint32_t u32Mode)
{
uint32_t i;
for (i = 0ul; i < GPIO_PIN_MAX; i++)
{
if (u32PinMask & (1ul << i))
{
port->PUSEL = (port->PUSEL & ~(0x3ul << (i << 1))) | (u32Mode << (i << 1));
}
}
}
/**
* @brief Set GPIO Driving Strength control
*
* @param[in] port GPIO port. It could be \ref PA, \ref PB, ... or \ref GPH
* @param[in] u32PinMask The pin of specified GPIO port. It could be 0 ~ 15.
* @param[in] u32Driving The pin driving strength of specified GPIO pin. It could be
* \ref 000 = Px.n is minimum deiver strength.
* \ref 111 = Px.n is maximum deiver strength.
*
* @return None
*
* @details Set the driving strength of specified GPIO pin.
*/
void GPIO_SetDrivingCtl(GPIO_T *port, uint32_t u32PinMask, uint32_t u32Driving)
{
uint32_t i;
for (i = 0ul; i < GPIO_PIN_MAX; i++)
{
if (u32PinMask & (1ul << i))
{
volatile uint32_t *pu32DS = &port->DSL + (i / 8);
uint32_t u32Offset = 4 * (i % 8);
*pu32DS = (*pu32DS & ~(0x7ul << u32Offset)) | ((u32Driving & 0x7) << u32Offset);
}
}
}
uint32_t GPIO_GetDrivingCtl(GPIO_T *port, uint32_t u32PinNo)
{
volatile uint32_t *pu32DS = &port->DSL + (u32PinNo / 8);
uint32_t u32Offset = 4 * (u32PinNo % 8) ;
return (*pu32DS >> u32Offset) & 0x7;
}
/**
* @brief Set GPIO Power Mode
*
* @param[in] port GPIO port. It could be \ref PA, \ref PB, ... or \ref GPH
* @param[in] u32PinMask The pin of specified GPIO port. It could be 0 ~ 15.
* @param[in] u32PowerMode The pin driving strength of specified GPIO pin. It could be
* \ref 0 = Px.n is 1.8v.
* \ref 1 = Px.n is 3.3v.
*
* @return None
*
* @details Set the power mode of specified GPIO pin.
* Only PB.0~15, PD.1, PE.2~13, PF.0~13, PG.10, PJ.0~11, PK.9~10, PN.10~11 pad voltage can be selected.
*/
void GPIO_SetPowerMode(GPIO_T *port, uint32_t u32PinMask, uint32_t u32PowerMode)
{
uint32_t i;
for (i = 0ul; i < GPIO_PIN_MAX; i++)
{
if (u32PinMask & (1ul << i))
{
uint32_t value = port->SPW;
value &= ~(1 << i);
value |= ((u32PowerMode ? 1 : 0) << i);
port->SPW = value;
}
}
}
uint32_t GPIO_GetPowerMode(GPIO_T *port, uint32_t u32PinNo)
{
return (port->SPW & (1 << u32PinNo)) >> u32PinNo;
}
/**
* @brief Set GPIO Input Schmitt Trigger
*
* @param[in] port GPIO port. It could be \ref PA, \ref PB, ... or \ref GPH
* @param[in] u32PinMask The pin of specified GPIO port. It could be 0 ~ 15.
* @param[in] u32SchmittTrigger The pin driving strength of specified GPIO pin. It could be
* \ref 0 = Px.n input schmitt trigger function Disabled.
* \ref 1 = Px.n input schmitt trigger function Enabled.
*
* @return None
*
* @details Set the power mode of specified GPIO pin.
* Only PB.0~15, PD.1, PE.2~13, PF.0~13, PG.10, PJ.0~11, PK.9~10, PN.10~11 pad voltage can be selected.
*/
void GPIO_SetSchmittTriggere(GPIO_T *port, uint32_t u32PinMask, uint32_t u32SchmittTrigger)
{
uint32_t i;
for (i = 0ul; i < GPIO_PIN_MAX; i++)
{
if (u32PinMask & (1ul << i))
{
uint32_t value = port->SMTEN;
value &= ~(1 << i);
value |= ((u32SchmittTrigger ? 1 : 0) << i);
port->SMTEN = value;
}
}
}
uint32_t GPIO_GetSchmittTriggere(GPIO_T *port, uint32_t u32PinNo)
{
return (port->SMTEN & (1 << u32PinNo)) >> u32PinNo;
}
/*@}*/ /* end of group GPIO_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group GPIO_Driver */
/*@}*/ /* end of group Standard_Driver */
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