IoPortManager.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#ifndef KERNEL_PROCESSOR_IOPORTMANAGER_H
#define KERNEL_PROCESSOR_IOPORTMANAGER_H
 
#include "pedigree/kernel/Spinlock.h"
#include "pedigree/kernel/compiler.h"
#include "pedigree/kernel/processor/Processor.h"
#include "pedigree/kernel/processor/types.h"
#include "pedigree/kernel/utilities/RangeList.h"
#include "pedigree/kernel/utilities/Vector.h"
 
class IoPort;
 
class IoPortManager {
  friend class ProcessorBase;
 
 public:
  inline static IoPortManager& instance() {
    return m_Instance;
  }
 
  struct IoPortInfo {
    inline IoPortInfo(io_port_t IoPort, size_t size, const char* Name)
        : ioPort(IoPort), sIoPort(size), name(Name) {}
 
    io_port_t ioPort;
    size_t sIoPort;
    const char* name;
  };
 
  bool allocate(IoPort* Port, io_port_t ioPort, size_t size);
  void free(IoPort* Port);
 
  void allocateIoPortList(Vector<IoPortInfo*>& IoPorts);
  void freeIoPortList(Vector<IoPortInfo*>& IoPorts);
 
  void initialise(io_port_t ioPortBase, size_t size) INITIALISATION_ONLY;
 
 private:
  IoPortManager() INITIALISATION_ONLY;
  virtual ~IoPortManager();
  IoPortManager(const IoPortManager&);
  IoPortManager& operator=(const IoPortManager&);
 
  Spinlock m_Lock;
 
  RangeList<uint32_t> m_FreeIoPorts;
  Vector<IoPort*> m_UsedIoPorts;
 
  static IoPortManager m_Instance;
};
 
#endif