DEC21143.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.
 *
 * Parts of this file based upon GXemul, which is Copyright (C) 2004-2007  
 * Anders Gavare.  All rights reserved.
 */

#if !defined(INCLUDED_DEC21143_H_)
#define INCLUDED_DEC21143_H

#include "PCIDevice.h"
#include "DEC21143_mii.h"
#include "DEC21143_tulipreg.h"
#if defined(WIN32)
#define HAVE_REMOTE
#endif
#include <pcap.h>
#include "Ethernet.h"

class CDEC21143 : public CPCIDevice, public Poco::Runnable
{
  public:
    virtual int   SaveState(FILE* f);
    virtual int   RestoreState(FILE* f);
    void          instant_tick();

    //    void interrupt(int number);
    virtual void  check_state();
    virtual void  WriteMem_Bar(int func, int bar, u32 address, int dsize,
                               u32 data);
    virtual u32   ReadMem_Bar(int func, int bar, u32 address, int dsize);

    CDEC21143(CConfigurator* confg, class CSystem* c, int pcibus, int pcidev);
    virtual       ~CDEC21143();
    virtual void  ResetPCI();
    void          ResetNIC();
    void          SetupFilter();
    void          receive_process();
    virtual void  run();
    virtual void  init();
    virtual void  start_threads();
    virtual void  stop_threads();
  private:
    static int  nic_num;

    Poco::Thread * myThread;
    bool                StopThread;

    u32                 nic_read(u32 address, int dsize);
    void                nic_write(u32 address, int dsize, u32 data);
    void                mii_access(uint32_t oldreg, uint32_t idata);
    void                srom_access(uint32_t oldreg, uint32_t idata);

    int                 dec21143_rx();
    int                 dec21143_tx();
    void                set_tx_state(int tx_state);
    void                set_rx_state(int rx_state);

    CPacketQueue*       rx_queue;
    pcap_t*             fp;
    struct bpf_program  fcode;
    bool                calc_crc;

    struct SNIC_state
    {
      bool  irq_was_asserted;   
      u8    mac[6];             
      u8    setup_filter[192];  
      int   descr_skip;         // Descriptor Skip Length [DSL] (in bytes)
      
      struct SNIC_srom
      {
        u8  data[1 << (7)];
        int curbit;
        int opcode;
        int opcode_has_started;
        int addr;
      } srom;

      struct SNIC_mii
      {
        u16 phy_reg[MII_NPHY * 32];
        int state;
        int bit;
        int opcode;
        int phyaddr;
        int regaddr;
      } mii;

      u32 reg[32];  

      struct SNIC_tx
      {
        u32             cur_addr;
        unsigned char*  cur_buf;
        int             cur_buf_len;
        int             idling;
        int             idling_threshold;
        bool            suspend;
      } tx;

      struct SNIC_rx
      {
        u32             cur_addr;
        unsigned char*  cur_buf;
        int             cur_buf_len;
        int             cur_offset;
        eth_packet      current;
      } rx;
    } state;
};
#endif // !defined(INCLUDED_DEC21143_H)

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