iodev/pcipnic.h

   1 /////////////////////////////////////////////////////////////////////////
   2 // $Id: pcipnic.h,v 1.8 2007/09/28 19:52:03 sshwarts Exp $
   3 /////////////////////////////////////////////////////////////////////////
   4 //
   5 //  Copyright (C) 2003  Fen Systems Ltd.
   6 //  http://www.fensystems.co.uk/
   7 //
   8 //  This library is free software; you can redistribute it and/or
   9 //  modify it under the terms of the GNU Lesser General Public
  10 //  License as published by the Free Software Foundation; either
  11 //  version 2 of the License, or (at your option) any later version.
  12 //
  13 //  This library is distributed in the hope that it will be useful,
  14 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 //  Lesser General Public License for more details.
  17 //
  18 //  You should have received a copy of the GNU Lesser General Public
  19 //  License along with this library; if not, write to the Free Software
  20 //  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21
  22 #ifndef BX_IODEV_PCIPNIC_H
  23 #define BX_IODEV_PCIPNIC_H
  24
  25 #include "pnic_api.h"
  26
  27 #if BX_USE_PCIPNIC_SMF
  28 #  define BX_PNIC_SMF  static
  29 #  define BX_PNIC_THIS thePNICDevice->
  30 #  define BX_PNIC_THIS_PTR thePNICDevice
  31 #else
  32 #  define BX_PNIC_SMF
  33 #  define BX_PNIC_THIS this->
  34 #  define BX_PNIC_THIS_PTR this
  35 #endif
  36
  37 #define PNIC_DATA_SIZE  4096
  38 #define PNIC_RECV_RINGS 4
  39
  40 typedef struct {
  41
  42   Bit32u        base_ioaddr;
  43   Bit8u         macaddr[6];
  44   Bit8u         irqEnabled;
  45
  46   Bit16u        rCmd;           // Command register
  47   Bit16u        rStatus;        // Status register
  48   Bit16u        rLength;        // Length register
  49   Bit8u         rData[PNIC_DATA_SIZE];  // Data register array
  50   Bit16u        rDataCursor;
  51
  52   int           recvIndex;
  53   int           recvQueueLength;
  54   Bit8u         recvRing[PNIC_RECV_RINGS][PNIC_DATA_SIZE]; // Receive buffer
  55   Bit16u        recvRingLength[PNIC_RECV_RINGS];
  56
  57   Bit8u devfunc;
  58   Bit8u pci_conf[256];
  59
  60 } bx_pnic_t;
  61
  62
  63 class bx_pcipnic_c : public bx_ne2k_stub_c, bx_pci_device_stub_c {
  64 public:
  65   bx_pcipnic_c();
  66   virtual ~bx_pcipnic_c();
  67   virtual void init(void);
  68   virtual void reset(unsigned type);
  69   virtual void register_state(void);
  70   virtual void after_restore_state(void);
  71
  72   virtual Bit32u pci_read_handler(Bit8u address, unsigned io_len);
  73   virtual void   pci_write_handler(Bit8u address, Bit32u value, unsigned io_len);
  74
  75 private:
  76   bx_pnic_t s;
  77
  78   static void set_irq_level(bx_bool level);
  79
  80   static void pnic_timer_handler(void *);
  81   void pnic_timer(void);
  82
  83   static Bit32u read_handler(void *this_ptr, Bit32u address, unsigned io_len);
  84   static void   write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
  85 #if !BX_USE_PCIPNIC_SMF
  86   Bit32u read(Bit32u address, unsigned io_len);
  87   void   write(Bit32u address, Bit32u value, unsigned io_len);
  88 #endif
  89
  90   eth_pktmover_c *ethdev;
  91   static void exec_command(void);
  92   static void rx_handler(void *arg, const void *buf, unsigned len);
  93   BX_PNIC_SMF void rx_frame(const void *buf, unsigned io_len);
  94 };
  95
  96 #endif