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faa25e1df6
second step options: factor out common parts of irq_session_component.cc options: use on foc arm no proxy threads Fixes #1456
68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
/*
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* \brief Connection to IRQ service
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* \author Norman Feske
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* \date 2008-08-22
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*/
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/*
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* Copyright (C) 2008-2013 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 _INCLUDE__IRQ_SESSION__CONNECTION_H_
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#define _INCLUDE__IRQ_SESSION__CONNECTION_H_
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#include <irq_session/client.h>
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#include <base/connection.h>
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namespace Genode { struct Irq_connection; }
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struct Genode::Irq_connection : Connection<Irq_session>, Irq_session_client
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{
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private:
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Genode::Signal_receiver _sig_rec;
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Genode::Signal_context _sigh_ctx;
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Genode::Signal_context_capability _sigh_cap;
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public:
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/**
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* Constructor
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*
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* \param irq physical interrupt number
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* \param trigger interrupt trigger (e.g., level/edge)
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* \param polarity interrupt trigger polarity (e.g., low/high)
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*/
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Irq_connection(unsigned irq,
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Irq_session::Trigger trigger = Irq_session::TRIGGER_UNCHANGED,
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Irq_session::Polarity polarity = Irq_session::POLARITY_UNCHANGED)
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:
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Connection<Irq_session>(
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session("ram_quota=4K, irq_number=%u, irq_trigger=%u, irq_polarity=%u",
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irq, trigger, polarity)),
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Irq_session_client(cap()),
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_sigh_cap(_sig_rec.manage(&_sigh_ctx))
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{
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/* register default signal handler */
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Irq_session_client::sigh(_sigh_cap);
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}
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~Irq_connection()
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{
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Irq_session_client::sigh(Genode::Signal_context_capability());
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_sig_rec.dissolve(&_sigh_ctx);
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}
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/**
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* Convenience function to acknowledge last IRQ and to block calling
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* thread until next IRQ fires.
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*/
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void wait_for_irq();
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};
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#endif /* _INCLUDE__IRQ_SESSION__CONNECTION_H_ */
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