hw/xfree86/int10/xf86x86emu.c

   1 /*
   2  *                   XFree86 int10 module
   3  *   execute BIOS int 10h calls in x86 real mode environment
   4  *                 Copyright 1999 Egbert Eich
   5  */
   6 #ifdef HAVE_XORG_CONFIG_H
   7 #include <xorg-config.h>
   8 #endif
   9
  10 #include <x86emu.h>
  11 #include "xf86.h"
  12 #include "compiler.h"
  13 #include "xf86_OSproc.h"
  14 #include "xf86Pci.h"
  15 #define _INT10_PRIVATE
  16 #include "xf86int10.h"
  17 #include "int10Defines.h"
  18
  19 #define M _X86EMU_env
  20
  21 static void
  22 x86emu_do_int(int num)
  23 {
  24     Int10Current->num = num;
  25
  26     if (!int_handler(Int10Current)) {
  27         X86EMU_halt_sys();
  28     }
  29 }
  30
  31 void
  32 xf86ExecX86int10(xf86Int10InfoPtr pInt)
  33 {
  34     int sig = setup_int(pInt);
  35
  36     if (sig < 0)
  37         return;
  38
  39     if (int_handler(pInt)) {
  40         X86EMU_exec();
  41     }
  42
  43     finish_int(pInt, sig);
  44 }
  45
  46 Bool
  47 xf86Int10ExecSetup(xf86Int10InfoPtr pInt)
  48 {
  49     int i;
  50     X86EMU_intrFuncs intFuncs[256];
  51
  52     X86EMU_pioFuncs pioFuncs = {
  53         (&x_inb),
  54         (&x_inw),
  55         (&x_inl),
  56         (&x_outb),
  57         (&x_outw),
  58         (&x_outl)
  59     };
  60
  61     X86EMU_memFuncs memFuncs = {
  62         (&Mem_rb),
  63         (&Mem_rw),
  64         (&Mem_rl),
  65         (&Mem_wb),
  66         (&Mem_ww),
  67         (&Mem_wl)
  68     };
  69
  70     X86EMU_setupMemFuncs(&memFuncs);
  71
  72     pInt->cpuRegs = &M;
  73     M.mem_base = 0;
  74     M.mem_size = 1024 * 1024 + 1024;
  75     X86EMU_setupPioFuncs(&pioFuncs);
  76
  77     for (i = 0; i < 256; i++)
  78         intFuncs[i] = x86emu_do_int;
  79     X86EMU_setupIntrFuncs(intFuncs);
  80     return TRUE;
  81 }
  82
  83 void
  84 printk(const char *fmt, ...)
  85 {
  86     va_list argptr;
  87
  88     va_start(argptr, fmt);
  89     VErrorF(fmt, argptr);
  90     va_end(argptr);
  91 }