/*
* Copyright (c) 2016, Freescale Semiconductor, Inc.
* Copyright 2016-2020 NXP
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef _FSL_GPIO_H_
#define _FSL_GPIO_H_
#include "fsl_common.h"
/*!
* @addtogroup gpio_driver
* @{
*/
/*******************************************************************************
* Definitions
******************************************************************************/
/*! @name Driver version */
/*@{*/
/*! @brief GPIO driver version 2.0.3. */
#define FSL_GPIO_DRIVER_VERSION (MAKE_VERSION(2, 0, 3))
/*@}*/
/*! @brief GPIO direction definition. */
typedef enum _gpio_pin_direction
{
kGPIO_DigitalInput = 0U, /*!< Set current pin as digital input.*/
kGPIO_DigitalOutput = 1U, /*!< Set current pin as digital output.*/
} gpio_pin_direction_t;
/*! @brief GPIO interrupt mode definition. */
typedef enum _gpio_interrupt_mode
{
kGPIO_NoIntmode = 0U, /*!< Set current pin general IO functionality.*/
kGPIO_IntLowLevel = 1U, /*!< Set current pin interrupt is low-level sensitive.*/
kGPIO_IntHighLevel = 2U, /*!< Set current pin interrupt is high-level sensitive.*/
kGPIO_IntRisingEdge = 3U, /*!< Set current pin interrupt is rising-edge sensitive.*/
kGPIO_IntFallingEdge = 4U, /*!< Set current pin interrupt is falling-edge sensitive.*/
kGPIO_IntRisingOrFallingEdge = 5U, /*!< Enable the edge select bit to override the ICR register's configuration.*/
} gpio_interrupt_mode_t;
/*! @brief GPIO Init structure definition. */
typedef struct _gpio_pin_config
{
gpio_pin_direction_t direction; /*!< Specifies the pin direction. */
uint8_t outputLogic; /*!< Set a default output logic, which has no use in input */
gpio_interrupt_mode_t
interruptMode; /*!< Specifies the pin interrupt mode, a value of @ref gpio_interrupt_mode_t. */
} gpio_pin_config_t;
/*******************************************************************************
* API
******************************************************************************/
#if defined(__cplusplus)
extern "C" {
#endif
/*!
* @name GPIO Initialization and Configuration functions
* @{
*/
/*!
* @brief Initializes the GPIO peripheral according to the specified
* parameters in the initConfig.
*
* @param base GPIO base pointer.
* @param pin Specifies the pin number
* @param Config pointer to a @ref gpio_pin_config_t structure that
* contains the configuration information.
*/
void GPIO_PinInit(GPIO_Type *base, uint32_t pin, const gpio_pin_config_t *Config);
/*@}*/
/*!
* @name GPIO Reads and Write Functions
* @{
*/
/*!
* @brief Sets the output level of the individual GPIO pin to logic 1 or 0.
*
* @param base GPIO base pointer.
* @param pin GPIO port pin number.
* @param output GPIOpin output logic level.
* - 0: corresponding pin output low-logic level.
* - 1: corresponding pin output high-logic level.
*/
void GPIO_PinWrite(GPIO_Type *base, uint32_t pin, uint8_t output);
/*!
* @brief Sets the output level of the individual GPIO pin to logic 1 or 0.
* @deprecated Do not use this function. It has been superceded by @ref GPIO_PinWrite.
*/
static inline void GPIO_WritePinOutput(GPIO_Type *base, uint32_t pin, uint8_t output)
{
GPIO_PinWrite(base, pin, output);
}
/*!
* @brief Sets the output level of the multiple GPIO pins to the logic 1.
*
* @param base GPIO peripheral base pointer (GPIO1, GPIO2, GPIO3, and so on.)
* @param mask GPIO pin number macro
*/
static inline void GPIO_PortSet(GPIO_Type *base, uint32_t mask)
{
#if (defined(FSL_FEATURE_IGPIO_HAS_DR_SET) && (FSL_FEATURE_IGPIO_HAS_DR_SET == 1))
base->DR_SET = mask;
#else
base->DR |= mask;
#endif /* FSL_FEATURE_IGPIO_HAS_DR_SET */
}
/*!
* @brief Sets the output level of the multiple GPIO pins to the logic 1.
* @deprecated Do not use this function. It has been superceded by @ref GPIO_PortSet.
*/
static inline void GPIO_SetPinsOutput(GPIO_Type *base, uint32_t mask)
{
GPIO_PortSet(base, mask);
}
/*!
* @brief Sets the output level of the multiple GPIO pins to the logic 0.
*
* @param base GPIO peripheral base pointer (GPIO1, GPIO2, GPIO3, and so on.)
* @param mask GPIO pin number macro
*/
static inline void GPIO_PortClear(GPIO_Type *base, uint32_t mask)
{
#if (defined(FSL_FEATURE_IGPIO_HAS_DR_CLEAR) && (FSL_FEATURE_IGPIO_HAS_DR_CLEAR == 1))
base->DR_CLEAR = mask;
#else
base->DR &= ~mask;
#endif /* FSL_FEATURE_IGPIO_HAS_DR_CLEAR */
}
/*!
* @brief Sets the output level of the multiple GPIO pins to the logic 0.
* @deprecated Do not use this function. It has been superceded by @ref GPIO_PortClear.
*/
static inline void GPIO_ClearPinsOutput(GPIO_Type *base, uint32_t mask)
{
GPIO_PortClear(base, mask);
}
/*!
* @brief Reverses the current output logic of the multiple GPIO pins.
*
* @param base GPIO peripheral base pointer (GPIO1, GPIO2, GPIO3, and so on.)
* @param mask GPIO pin number macro
*/
static inline void GPIO_PortToggle(GPIO_Type *base, uint32_t mask)
{
#if (defined(FSL_FEATURE_IGPIO_HAS_DR_TOGGLE) && (FSL_FEATURE_IGPIO_HAS_DR_TOGGLE == 1))
base->DR_TOGGLE = mask;
#endif /* FSL_FEATURE_IGPIO_HAS_DR_TOGGLE */
}
/*!
* @brief Reads the current input value of the GPIO port.
*
* @param base GPIO base pointer.
* @param pin GPIO port pin number.
* @retval GPIO port input value.
*/
static inline uint32_t GPIO_PinRead(GPIO_Type *base, uint32_t pin)
{
assert(pin < 32U);
return (((base->DR) >> pin) & 0x1U);
}
/*!
* @brief Reads the current input value of the GPIO port.
* @deprecated Do not use this function. It has been superceded by @ref GPIO_PinRead.
*/
static inline uint32_t GPIO_ReadPinInput(GPIO_Type *base, uint32_t pin)
{
return GPIO_PinRead(base, pin);
}
/*@}*/
/*!
* @name GPIO Reads Pad Status Functions
* @{
*/
/*!
* @brief Reads the current GPIO pin pad status.
*
* @param base GPIO base pointer.
* @param pin GPIO port pin number.
* @retval GPIO pin pad status value.
*/
static inline uint8_t GPIO_PinReadPadStatus(GPIO_Type *base, uint32_t pin)
{
assert(pin < 32U);
return (uint8_t)(((base->PSR) >> pin) & 0x1U);
}
/*!
* @brief Reads the current GPIO pin pad status.
* @deprecated Do not use this function. It has been superceded by @ref GPIO_PinReadPadStatus.
*/
static inline uint8_t GPIO_ReadPadStatus(GPIO_Type *base, uint32_t pin)
{
return GPIO_PinReadPadStatus(base, pin);
}
/*@}*/
/*!
* @name Interrupts and flags management functions
* @{
*/
/*!
* @brief Sets the current pin interrupt mode.
*
* @param base GPIO base pointer.
* @param pin GPIO port pin number.
* @param pinInterruptMode pointer to a @ref gpio_interrupt_mode_t structure
* that contains the interrupt mode information.
*/
void GPIO_PinSetInterruptConfig(GPIO_Type *base, uint32_t pin, gpio_interrupt_mode_t pinInterruptMode);
/*!
* @brief Sets the current pin interrupt mode.
* @deprecated Do not use this function. It has been superceded by @ref GPIO_PinSetInterruptConfig.
*/
static inline void GPIO_SetPinInterruptConfig(GPIO_Type *base, uint32_t pin, gpio_interrupt_mode_t pinInterruptMode)
{
GPIO_PinSetInterruptConfig(base, pin, pinInterruptMode);
}
/*!
* @brief Enables the specific pin interrupt.
*
* @param base GPIO base pointer.
* @param mask GPIO pin number macro.
*/
static inline void GPIO_PortEnableInterrupts(GPIO_Type *base, uint32_t mask)
{
base->IMR |= mask;
}
/*!
* @brief Enables the specific pin interrupt.
*
* @param base GPIO base pointer.
* @param mask GPIO pin number macro.
*/
static inline void GPIO_EnableInterrupts(GPIO_Type *base, uint32_t mask)
{
GPIO_PortEnableInterrupts(base, mask);
}
/*!
* @brief Disables the specific pin interrupt.
*
* @param base GPIO base pointer.
* @param mask GPIO pin number macro.
*/
static inline void GPIO_PortDisableInterrupts(GPIO_Type *base, uint32_t mask)
{
base->IMR &= ~mask;
}
/*!
* @brief Disables the specific pin interrupt.
* @deprecated Do not use this function. It has been superceded by @ref GPIO_PortDisableInterrupts.
*/
static inline void GPIO_DisableInterrupts(GPIO_Type *base, uint32_t mask)
{
GPIO_PortDisableInterrupts(base, mask);
}
/*!
* @brief Reads individual pin interrupt status.
*
* @param base GPIO base pointer.
* @retval current pin interrupt status flag.
*/
static inline uint32_t GPIO_PortGetInterruptFlags(GPIO_Type *base)
{
return base->ISR;
}
/*!
* @brief Reads individual pin interrupt status.
*
* @param base GPIO base pointer.
* @retval current pin interrupt status flag.
*/
static inline uint32_t GPIO_GetPinsInterruptFlags(GPIO_Type *base)
{
return GPIO_PortGetInterruptFlags(base);
}
/*!
* @brief Clears pin interrupt flag. Status flags are cleared by
* writing a 1 to the corresponding bit position.
*
* @param base GPIO base pointer.
* @param mask GPIO pin number macro.
*/
static inline void GPIO_PortClearInterruptFlags(GPIO_Type *base, uint32_t mask)
{
base->ISR = mask;
}
/*!
* @brief Clears pin interrupt flag. Status flags are cleared by
* writing a 1 to the corresponding bit position.
*
* @param base GPIO base pointer.
* @param mask GPIO pin number macro.
*/
static inline void GPIO_ClearPinsInterruptFlags(GPIO_Type *base, uint32_t mask)
{
GPIO_PortClearInterruptFlags(base, mask);
}
/*@}*/
#if defined(__cplusplus)
}
#endif
/*!
* @}
*/
#endif /* _FSL_GPIO_H_*/
