irq.h

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// AUTOMATICALLY GENERATED -- DO NOT EDIT!         -*- c++ -*-

#ifndef irq_h
#define irq_h

#include "sender.h"
#include "irq_alloc.h"

//
// INTERFACE definition follows 
//


class Irq : public Irq_alloc, public Sender
{

private:
  Irq();                        // default constructors remain undefined
  Irq(Irq&);

protected:
  int _queued;

public:

  static Irq *lookup( unsigned irq );


public:  
  explicit Irq(unsigned irqnum);
  
  inline int queued();
  
  virtual void ipc_receiver_ready();
  
  inline void maybe_acknowledge();
  
  inline void maybe_enable();

private:  
  inline int consume();
};

extern unsigned pic_mask_master;
extern unsigned pic_mask_slave;

extern "C" void fast_ret_from_irq(void);

//
// IMPLEMENTATION includes follow (for use by inline functions)
//


#include "atomic.h"

#include "pic.h"

//
// IMPLEMENTATION of inline functions (and needed classes)
//




inline int
Irq::queued()
{
  return _queued;
}



inline void
Irq::maybe_acknowledge()
{
  if (_ack_in_kernel)
    {
      unsigned irqnum = id().irq();

      Pic::disable_locked(irqnum);
      Pic::acknowledge_locked(irqnum);
    }
}

 
inline void
Irq::maybe_enable()
{
  if (EXPECT_FALSE(_ack_in_kernel))
    {
      unsigned irqnum = id().irq();

      Pic::enable(irqnum);
    }
}



inline Irq *Irq::lookup( unsigned irq )
{
  return static_cast<Irq*>(Irq_alloc::lookup(irq));
}

#endif // irq_h

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