PCIDevice.h

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/* ES40 emulator.
 * Copyright (C) 2007-2008 by the ES40 Emulator Project
 *
 * WWW    : http://sourceforge.net/projects/es40
 * E-mail : camiel@camicom.com
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 * 
 * Although this is not required, the author would appreciate being notified of, 
 * and receiving any modifications you may make to the source code that might serve
 * the general public.
 */

#if !defined(__PCIDEVICE_H__)
#define __PCIDEVICE_H__

#define MAX_DEV_RANGES  50

#define PCI_RANGE_BASE  0x0800

#include "SystemComponent.h"

class CPCIDevice : public CSystemComponent
{
  public:
    CPCIDevice(class CConfigurator*  cfg, class CSystem*  c, int pcibus,
               int pcidev);
    ~             CPCIDevice(void);
    virtual int   SaveState(FILE* f);
    virtual int   RestoreState(FILE* f);
    virtual void  ResetPCI();
    virtual u64   ReadMem(int index, u64 address, int dsize);
    virtual void  WriteMem(int index, u64 address, int dsize, u64 data);

    virtual u32   ReadMem_Legacy(int index, u32 address, int dsize);
    virtual void  WriteMem_Legacy(int index, u32 address, int dsize, u32 data);

    virtual u32   ReadMem_Bar(int func, int bar, u32 address, int dsize);
    virtual void  WriteMem_Bar(int func, int bar, u32 address, int dsize,
                               u32 data);

    u32           config_read(int func, u32 address, int dsize);
    void          config_write(int func, u32 address, int dsize, u32 data);

    virtual u32 config_read_custom(int func, u32 address, int dsize, u32 data)
    {
      return data;
    };
    virtual void config_write_custom(int func, u32 address, int dsize,
                                     u32 old_data, u32 new_data, u32 data)
    { };
    void  register_bar(int func, int bar, u32 data, u32 mask);
  protected:
    bool  do_pci_interrupt(int func, bool asserted);
    void  do_pci_read(u32 address, void*  dest, size_t element_size,
                      size_t element_count);
    void  do_pci_write(u32 address, void*  source, size_t element_size,
                       size_t element_count);

    void  add_function(int func, u32 data[64], u32 mask[64]);
    void  add_legacy_io(int id, u32 base, u32 length);
    void  add_legacy_mem(int id, u32 base, u32 length);

    int   myPCIBus;
    int   myPCIDev;

    u32   std_config_data[8][64];
    u32   std_config_mask[8][64];
    bool  device_at[8];

    bool  dev_range_is_io[MAX_DEV_RANGES];
    bool  pci_range_is_io[8][8];

    struct SPCI_state
    {
      u32 config_data[8][64];
      u32 config_mask[8][64];
    } pci_state;
};
#endif 

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