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57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
/**
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* Native CPU interface
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*
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* The native CPU uses system calls to simulate hardware access.
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*
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* Copyright (C) 2013 Ludwig Ortmann
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*
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* This file subject to the terms and conditions of the GNU General Public
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* License. See the file LICENSE in the top level directory for more details.
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*/
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/**
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* @ingroup arch
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* @defgroup native_cpu Native CPU
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* @{
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* @author Ludwig Ortmann <ludwig.ortmann@fu-berlin.de>
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*/
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#ifndef _CPU_H
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#define _CPU_H
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#include <ucontext.h>
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#include "kernel_intern.h"
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#include "sched.h"
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#include "debug.h"
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#include "cpu-conf.h"
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/* TODO: choose better value? */
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#define F_CPU 1000000
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void dINT(void);
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void eINT(void);
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/**
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* register interrupt handler handler for interrupt sig
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*/
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int register_interrupt(int sig, void *handler);
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/**
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* unregister interrupt handler for interrupt sig
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*/
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int unregister_interrupt(int sig);
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/* this should be defined elsewhere */
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void thread_yield(void);
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extern void _native_sig_leave_tramp(void);
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extern ucontext_t *_native_cur_ctx, *_native_isr_ctx;
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extern unsigned int _native_saved_eip;
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extern int _native_in_isr;
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extern int _native_in_syscall;
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extern int _native_sigpend;
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/** @} */
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#endif //_CPU_H
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