rpi-gpio.h

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/* SPDX-License-Identifier: GPL-2.0+-with-RTEMS-exception */
 
/*
 *  Copyright (c) 2015 Andre Marques <andre.lousa.marques at gmail.com>
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.org/license/LICENSE.
 */
 
#ifndef LIBBSP_ARM_RASPBERRYPI_RPI_GPIO_H
#define LIBBSP_ARM_RASPBERRYPI_RPI_GPIO_H
 
#include <rtems.h>
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
#define RPI_DIGITAL_IN  0
#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
 
extern rtems_status_code rpi_gpio_select_jtag(void);
 
extern rtems_status_code rpi_gpio_select_spi(void);
 
extern rtems_status_code rpi_gpio_select_i2c(void);
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* LIBBSP_ARM_RASPBERRYPI_RPI_GPIO_H */