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88 lines
1.8 KiB
C
88 lines
1.8 KiB
C
/*
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* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
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* 2014 Freie Universität Berlin, Hinnerk van Bruinehsen
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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_atmega_common
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* @brief Common implementations and headers for ATmega family based micro-controllers
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* @{
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*
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* @file
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* @brief Basic definitions for the ATmega common module
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*
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* When ever you want to do something hardware related, that is accessing MCUs registers directly,
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* just include this file. It will then make sure that the MCU specific headers are included.
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*
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* @author Stefan Pfeiffer <stefan.pfeiffer@fu-berlin.de>
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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* @author Hinnerk van Bruinehsen <h.v.bruinehsen@fu-berlin.de>
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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*/
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#ifndef CPU_H
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#define CPU_H
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#include <stdio.h>
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#include <stdint.h>
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#include <avr/interrupt.h>
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#include "cpu_conf.h"
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/**
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* For downwards compatibility with old RIOT code.
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* TODO: remove once core was adjusted
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*/
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#include "irq.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 global in-ISR state variable
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*/
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extern volatile uint8_t __in_isr;
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/**
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* @brief Flag entering of an ISR
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*/
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static inline void __enter_isr(void)
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{
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__in_isr = 1;
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}
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/**
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* @brief Flag exiting of an ISR
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*/
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static inline void __exit_isr(void)
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{
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__in_isr = 0;
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}
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/**
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* @brief Initialization of the CPU
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*/
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void cpu_init(void);
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/**
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* @brief Print the last instruction's address
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*
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* @todo: Not supported
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*/
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static inline void cpu_print_last_instruction(void)
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{
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puts("n/a");
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* CPU_H */
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/** @} */
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