gpio_intc_stm32.h File Reference

#include <zephyr/types.h>
#include <zephyr/drivers/gpio.h>

Go to the source code of this file.

Typedefs
typedef uint32_t	stm32_gpio_irq_line_t
	GPIO interrupt controller API for STM32 MCUs.
typedef void(*	stm32_gpio_irq_cb_t) (gpio_port_pins_t pin, void *user)
	GPIO interrupt callback function signature.

Enumerations
enum	stm32_gpio_irq_trigger {   STM32_GPIO_IRQ_TRIG_NONE = 0x0 , STM32_GPIO_IRQ_TRIG_RISING = 0x1 , STM32_GPIO_IRQ_TRIG_FALLING = 0x2 , STM32_GPIO_IRQ_TRIG_BOTH = 0x3 ,   STM32_GPIO_IRQ_TRIG_HIGH_LEVEL = 0x4 , STM32_GPIO_IRQ_TRIG_LOW_LEVEL = 0x5 }
	GPIO interrupt trigger flags. More...

Functions
stm32_gpio_irq_line_t	stm32_gpio_intc_get_pin_irq_line (uint32_t port, gpio_pin_t pin)
	Get the GPIO interrupt line value corresponding to specified pin of GPIO port port.
void	stm32_gpio_intc_enable_line (stm32_gpio_irq_line_t line)
	Enable GPIO interrupts for specified line.
void	stm32_gpio_intc_disable_line (stm32_gpio_irq_line_t line)
	Disable GPIO interrupts for specified line.
void	stm32_gpio_intc_select_line_trigger (stm32_gpio_irq_line_t line, uint32_t trg)
	Select trigger for interrupt on specified GPIO line.
int	stm32_gpio_intc_set_irq_callback (stm32_gpio_irq_line_t line, stm32_gpio_irq_cb_t cb, void *user)
	Set callback invoked when an interrupt occurs on specified GPIO line.
void	stm32_gpio_intc_remove_irq_callback (stm32_gpio_irq_line_t line)
	Removes the interrupt callback of specified EXTI line.

Typedef Documentation

stm32_gpio_irq_cb_t

typedef void(* stm32_gpio_irq_cb_t) (gpio_port_pins_t pin, void *user)

GPIO interrupt callback function signature.

Parameters

pin	GPIO pin on which interrupt occurred
user	data provided to stm32_gpio_intc_set_irq_callback

Note

This callback is invoked in ISR context.

stm32_gpio_irq_line_t

typedef uint32_t stm32_gpio_irq_line_t

GPIO interrupt controller API for STM32 MCUs.

This API is used to interact with the GPIO interrupt controller of STM32 microcontrollers.

Opaque type representing a GPIO interrupt line

Enumeration Type Documentation

stm32_gpio_irq_trigger

enum stm32_gpio_irq_trigger

GPIO interrupt trigger flags.

Enumerator
STM32_GPIO_IRQ_TRIG_NONE
STM32_GPIO_IRQ_TRIG_RISING
STM32_GPIO_IRQ_TRIG_FALLING
STM32_GPIO_IRQ_TRIG_BOTH
STM32_GPIO_IRQ_TRIG_HIGH_LEVEL
STM32_GPIO_IRQ_TRIG_LOW_LEVEL

Function Documentation

stm32_gpio_intc_disable_line()

void stm32_gpio_intc_disable_line

(

stm32_gpio_irq_line_t

line

)

Disable GPIO interrupts for specified line.

Parameters

line	GPIO interrupt line

stm32_gpio_intc_enable_line()

void stm32_gpio_intc_enable_line

(

stm32_gpio_irq_line_t

line

)

Enable GPIO interrupts for specified line.

Parameters

line	GPIO interrupt line

stm32_gpio_intc_get_pin_irq_line()

stm32_gpio_irq_line_t stm32_gpio_intc_get_pin_irq_line	(	uint32_t	port,
		gpio_pin_t	pin
	)

Get the GPIO interrupt line value corresponding to specified pin of GPIO port port.

stm32_gpio_intc_remove_irq_callback()

void stm32_gpio_intc_remove_irq_callback

(

stm32_gpio_irq_line_t

line

)

Removes the interrupt callback of specified EXTI line.

Parameters

line	EXTI interrupt line

stm32_gpio_intc_select_line_trigger()

void stm32_gpio_intc_select_line_trigger	(	stm32_gpio_irq_line_t	line,
		uint32_t	trg
	)

Select trigger for interrupt on specified GPIO line.

Parameters

line	GPIO interrupt line
trg	Interrupt trigger (see stm32_gpio_irq_trigger)

stm32_gpio_intc_set_irq_callback()

int stm32_gpio_intc_set_irq_callback	(	stm32_gpio_irq_line_t	line,
		stm32_gpio_irq_cb_t	cb,
		void *	user
	)

Set callback invoked when an interrupt occurs on specified GPIO line.

Parameters

line	GPIO interrupt line
cb	Interrupt callback function
user	Custom user data for usage by the callback

Returns

0 on success, -EBUSY if a callback is already set for line