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65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
/*
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* Copyright (C) 2015 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup cpu_nrf51822
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* @{
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*
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* @file
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* @brief CPU specific definitions for handling peripherals
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*
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* @author Hauke Petersen <hauke.peterse@fu-berlin.de>
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*/
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#ifndef CPU_PERIPH_H_
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#define CPU_PERIPH_H_
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#include "periph/dev_enums.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Override GPIO pull register select values
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* @{
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*/
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#define HAVE_GPIO_PP_T
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typedef enum {
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GPIO_NOPULL = 0, /**< do not use internal pull resistors */
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GPIO_PULLUP = 2, /**< enable internal pull-up resistor */
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GPIO_PULLDOWN = 1 /**< enable internal pull-down resistor */
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} gpio_pp_t;
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/** @} */
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/**
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* @brief Override GPIO active flank values
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* @{
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*/
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#define HAVE_GPIO_FLANK_T
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typedef enum {
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GPIO_FALLING = 2, /**< emit interrupt on falling flank */
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GPIO_RISING = 1, /**< emit interrupt on rising flank */
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GPIO_BOTH = 3 /**< emit interrupt on both flanks */
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} gpio_flank_t;
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/** @} */
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/**
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* @brief Mandatory macro for defining GPIO pins
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*
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* The port definition is used (and zeroed) to suppress compiler warnings
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*/
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#define GPIO_PIN(x,y) ((x & 0) | y)
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#ifdef __cplusplus
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}
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#endif
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#endif /* CPU_PERIPH_H_ */
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/** @} */
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