drivers/gpio/portmux_gpio.c File Reference

GPIO portmux driver. More...

#include <debug.h>
#include <io.h>
#include <chip/memory-map.h>
#include <chip/portmux.h>

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Functions
void	portmux_select_peripheral (void *port, pin_mask_t pin_mask, enum portmux_function func, unsigned long flags)
	Select a peripheral function for a set of pins.
void	portmux_select_gpio (void *port, pin_mask_t pin_mask, unsigned long flags)
	Select the GPIO function for a set of pins.
void	gpio_set_value_noninline (gpio_pin_t pin, bool value)
	Drive a GPIO pin to a given state (non-constant pin version).
bool	gpio_get_value_noninline (gpio_pin_t pin)
	Read the current state of a GPIO pin (non-constant pin version).

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Detailed Description

GPIO portmux driver.

• Compiler: IAR EWAVR32 and GNU GCC for AVR32
• Supported devices: All AVR32 devices with a GPIO module
• AppNote:

Author:

Atmel Corporation: http://www.atmel.com
Support and FAQ: http://support.atmel.no/

Definition in file portmux_gpio.c.

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Function Documentation

bool gpio_get_value_noninline

(

gpio_pin_t

pin

)

Read the current state of a GPIO pin (non-constant pin version).

Parameters:

pin

A number identifying the pin to read.

Return values:

	true	The pin is currently high (close to Vdd)
	false	The pin is currently low (close to Vss)

Definition at line 183 of file portmux_gpio.c.

Referenced by gpio_get_value().

void gpio_set_value_noninline	(	gpio_pin_t	pin,
		bool	value
	)

Drive a GPIO pin to a given state (non-constant pin version).

This function will only have an effect if pin is configured as an output.

Parameters:

	pin	A number identifying the pin to act on.
	value	The desired state of the pin. true means drive the pin high (towards Vdd), while false means drive the pin low (towards Vss).

Definition at line 170 of file portmux_gpio.c.

Referenced by gpio_set_value().

void portmux_select_gpio	(	void *	port,
		pin_mask_t	pin_mask,
		unsigned long	flags
	)

Select the GPIO function for a set of pins.

Parameters:

	port	The GPIO port to which the pins belong.
	pin_mask	Bitmask of pins on port to be configured.
	flags	Bitmask of flags specifying additional configuration parameters.

Definition at line 105 of file portmux_gpio.c.

References gpio_write_reg, PORTMUX_GPIO_VER, and portmux_gpio_version().

Referenced by portmux_select_gpio_pin().

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void portmux_select_peripheral	(	void *	port,
		pin_mask_t	pin_mask,
		enum portmux_function	func,
		unsigned long	flags
	)

Select a peripheral function for a set of pins.

Parameters:

	port	The GPIO port to which the pins belong.
	pin_mask	Bitmask of pins on port to be configured.
	func	The peripheral function to which the pins are to be assigned.
	flags	Bitmask of flags specifying additional configuration parameters.

Definition at line 56 of file portmux_gpio.c.

References gpio_write_reg, PORTMUX_GPIO_VER, and portmux_gpio_version().

Referenced by portmux_enable_usbb().

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