iodev/pci.h

   1 /////////////////////////////////////////////////////////////////////////
   2 // $Id: pci.h,v 1.27 2007/09/28 19:52:03 sshwarts Exp $
   3 /////////////////////////////////////////////////////////////////////////
   4 //
   5 //  Copyright (C) 2002  MandrakeSoft S.A.
   6 //
   7 //    MandrakeSoft S.A.
   8 //    43, rue d'Aboukir
   9 //    75002 Paris - France
  10 //    http://www.linux-mandrake.com/
  11 //    http://www.mandrakesoft.com/
  12 //
  13 //  This library is free software; you can redistribute it and/or
  14 //  modify it under the terms of the GNU Lesser General Public
  15 //  License as published by the Free Software Foundation; either
  16 //  version 2 of the License, or (at your option) any later version.
  17 //
  18 //  This library is distributed in the hope that it will be useful,
  19 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21 //  Lesser General Public License for more details.
  22 //
  23 //  You should have received a copy of the GNU Lesser General Public
  24 //  License along with this library; if not, write to the Free Software
  25 //  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  26
  27 #ifndef BX_IODEV_PCI_BRIDGE_H
  28 #define BX_IODEV_PCI_BRIDGE_H
  29
  30 #define BX_MAX_PCI_DEVICES 20
  31
  32 #define BX_PCI_DEVICE(device, function) ((device)<<3 | (function))
  33
  34 #if BX_USE_PCI_SMF
  35 #  define BX_PCI_SMF  static
  36 #  define BX_PCI_THIS thePciBridge->
  37 #else
  38 #  define BX_PCI_SMF
  39 #  define BX_PCI_THIS this->
  40 #endif
  41
  42 #define BX_PCI_INTA 1
  43 #define BX_PCI_INTB 2
  44 #define BX_PCI_INTC 3
  45 #define BX_PCI_INTD 4
  46
  47 typedef struct {
  48   Bit32u confAddr;
  49   Bit32u confData;
  50   Bit8u  pci_conf[256];
  51 } bx_def440fx_t;
  52
  53 class bx_pci_device_stub_c;
  54
  55 class bx_pci_bridge_c : public bx_pci_bridge_stub_c {
  56 public:
  57   bx_pci_bridge_c();
  58   virtual ~bx_pci_bridge_c();
  59   virtual void init(void);
  60   virtual void reset(unsigned type);
  61   virtual void register_state(void);
  62   virtual void after_restore_state(void);
  63   virtual bx_bool register_pci_handlers(bx_pci_device_stub_c *device,
  64                                         Bit8u *devfunc, const char *name,
  65                                         const char *descr);
  66   virtual bx_bool is_pci_device(const char *name);
  67   virtual bx_bool pci_set_base_mem(void *this_ptr, memory_handler_t f1,
  68                                    memory_handler_t f2, Bit32u *addr,
  69                                    Bit8u *pci_conf, unsigned size);
  70   virtual bx_bool pci_set_base_io(void *this_ptr, bx_read_handler_t f1,
  71                                   bx_write_handler_t f2, Bit32u *addr,
  72                                   Bit8u *pci_conf, unsigned size,
  73                                   const Bit8u *iomask, const char *name);
  74   virtual void  print_i440fx_state(void);
  75   virtual Bit8u rd_memType (Bit32u addr);
  76   virtual Bit8u wr_memType (Bit32u addr);
  77
  78   virtual Bit32u pci_read_handler(Bit8u address, unsigned io_len);
  79   virtual void   pci_write_handler(Bit8u address, Bit32u value, unsigned io_len);
  80
  81 private:
  82   Bit8u pci_handler_id[0x100];  // 256 devices/functions
  83   struct {
  84     bx_pci_device_stub_c *handler;
  85   } pci_handler[BX_MAX_PCI_DEVICES];
  86   unsigned num_pci_handlers;
  87
  88   bx_bool slot_used[BX_N_PCI_SLOTS];
  89   bx_bool slots_checked;
  90
  91   struct {
  92     bx_def440fx_t i440fx;
  93   } s;
  94
  95   void smram_control(Bit8u value);
  96
  97   static Bit32u read_handler(void *this_ptr, Bit32u address, unsigned io_len);
  98   static void   write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
  99 #if !BX_USE_PCI_SMF
 100   Bit32u read(Bit32u address, unsigned io_len);
 101   void   write(Bit32u address, Bit32u value, unsigned io_len);
 102 #endif
 103 };
 104
 105 #endif