59 lines
929 B
C++
59 lines
929 B
C++
/*
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* \brief Echo interface
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* \author Norman Feske
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* \date 2010-01-19
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*/
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/*
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* Copyright (C) 2010-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _ECHO_H_
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#define _ECHO_H_
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/* NOVA includes */
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#include <nova/syscalls.h>
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class Echo
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{
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private:
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int _ec_sel; /* execution context */
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int _pt_sel; /* portal */
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Nova::Utcb *_utcb;
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public:
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enum {
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ECHO_UTCB_ADDR = 0xbff00000,
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};
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/**
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* Constructor
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*
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* \param utcb_addr designated UTCB location for echo EC
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*/
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Echo(Genode::addr_t utcb_addr);
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/**
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* UTCB of echo execution context
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*/
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Nova::Utcb *utcb() { return _utcb; }
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/**
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* Capability selector for portal to echo
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*/
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int pt_sel() { return _pt_sel; }
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};
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/**
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* Get single 'Echo' instance
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*/
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Echo *echo();
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#endif /* _ECHO_H_ */
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