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os: use async IRQ interface in Irq_activation

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Issue #1456.
This commit is contained in:
Josef Söntgen 2015-04-09 12:02:00 +02:00 committed by Christian Helmuth
parent 85599c072f
commit 0383c68bf6
1 changed files with 22 additions and 5 deletions
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27
repos/os/include/os/irq_activation.h
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@ -46,12 +46,21 @@ class Genode::Irq_activation : Thread_base
Irq_handler &_handler;
char _thread_name[8];
Genode::Signal_receiver _sig_rec;
Genode::Signal_dispatcher<Irq_activation> _dispatcher;
char const *_create_thread_name(unsigned irq_number)
{
snprintf(_thread_name, sizeof(_thread_name), "irq.%02x", irq_number);
return _thread_name;
}
void _handle(unsigned)
{
_connection.ack_irq();
_handler.handle_irq(_number);
}
public:
/**
@ -64,22 +73,30 @@ class Genode::Irq_activation : Thread_base
Irq_activation(int irq_number, Irq_handler &handler, size_t stack_size)
:
Thread_base(0, _create_thread_name(irq_number), stack_size),
_number(irq_number), _connection(irq_number), _handler(handler)
_number(irq_number), _connection(irq_number), _handler(handler),
_dispatcher(_sig_rec, *this, &Irq_activation::_handle)
{
start();
_connection.sigh(_dispatcher);
_connection.ack_irq();
}
/**
* Thread entry
*
* The interrupt thread infinitely waits for interrupts and calls
* the handler on occurrence.
* The interrupt thread infinitely waits for interrupts signals and
* dispatches the handler on occurrence.
*/
void entry()
{
while (true) {
_connection.wait_for_irq();
_handler.handle_irq(_number);
Genode::Signal sig = _sig_rec.wait_for_signal();
int num = sig.num();
Genode::Signal_dispatcher_base *dispatcher;
dispatcher = dynamic_cast<Genode::Signal_dispatcher_base *>(sig.context());
dispatcher->dispatch(num);
}
}
};