rpi-gpio.h File Reference

Raspberry Pi specific GPIO definitions. More...

#include <rtems.h>

Go to the source code of this file.

Macros
#define	RPI_DIGITAL_IN   0
	Raspberry Pi GPIO functions.
#define	RPI_DIGITAL_OUT   1
#define	RPI_ALT_FUNC_0   4
#define	RPI_ALT_FUNC_1   5
#define	RPI_ALT_FUNC_2   6
#define	RPI_ALT_FUNC_3   7
#define	RPI_ALT_FUNC_4   3
#define	RPI_ALT_FUNC_5   2
#define	RPI_ALT_FUNC_MASK   7

Functions
rtems_status_code	rpi_gpio_select_jtag (void)
	Setups a JTAG interface. More...
rtems_status_code	rpi_gpio_select_spi (void)
	Setups a SPI interface. More...
rtems_status_code	rpi_gpio_select_i2c (void)
	Setups a I2C interface. More...

Detailed Description

Raspberry Pi specific GPIO definitions.

Function Documentation

rpi_gpio_select_i2c()

rtems_status_code rpi_gpio_select_i2c

(

void

)

Setups a I2C interface.

Return values

RTEMS_SUCCESSFUL	I2C interface successfully configured.
*	At least one of the required pins is currently occupied,

See also

rtems_gpio_request_pin_group().

rpi_gpio_select_jtag()

rtems_status_code rpi_gpio_select_jtag

(

void

)

Setups a JTAG interface.

Return values

RTEMS_SUCCESSFUL	JTAG interface successfully configured.
*	At least one of the required pins is currently occupied,

See also

rtems_gpio_request_pin_group().

rpi_gpio_select_spi()

rtems_status_code rpi_gpio_select_spi

(

void

)

Setups a SPI interface.

Return values

RTEMS_SUCCESSFUL	SPI interface successfully configured.
*	At least one of the required pins is currently occupied,

See also

rtems_gpio_request_pin_group().