/////////////////////////////////////////////////////////////////////////
// $Id: pcidev.h 13150 2017-03-26 08:09:28Z vruppert $
/////////////////////////////////////////////////////////////////////////

/*
 *  PCIDEV: PCI host device mapping
 *  Copyright (C) 2003       Frank Cornelis
 *  Copyright (C) 2003-2017  The Bochs Project
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2 as published by the Free Software Foundation.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#ifndef BX_IODEV_PCIDEV_H
#define BX_IODEV_PCIDEV_H

#if BX_USE_PCIDEV_SMF
#  define BX_PCIDEV_THIS thePciDevAdapter->
#  define BX_PCIDEV_THIS_ thePciDevAdapter
#else
#  define BX_PCIDEV_THIS this->
#  define BX_PCIDEV_THIS_ this
#endif

struct region_struct {
  Bit32u config_value;
  Bit32u start; // can change
  Bit32u size;
  Bit32u host_start; // never changes!!!
  class bx_pcidev_c *pcidev;
};

class bx_pcidev_c : public bx_pci_device_c {
public:
  bx_pcidev_c();
  virtual ~bx_pcidev_c();
  virtual void init(void);
  virtual void reset(unsigned type);

  virtual Bit32u pci_read_handler(Bit8u address, unsigned io_len);
  virtual void   pci_write_handler(Bit8u address, Bit32u value, unsigned io_len);

  int pcidev_fd; // to access the pcidev

  // resource mapping
  struct region_struct regions[6];
  Bit8u devfunc;
  Bit8u intpin;
  Bit8u irq;

private:
  static Bit32u read_handler(void *param, Bit32u address, unsigned io_len);
  static void write_handler(void *param, Bit32u address, Bit32u value, unsigned io_len);
#if !BX_USE_PCIDEV_SMF
  Bit32u read(void *param, Bit32u address, unsigned io_len);
  void write(void *param, Bit32u address, Bit32u value, unsigned io_len);
#endif
};

#endif
