static VOID FASTCALL vgaSetRegisters ( PVGA_REGISTERS Registers ) [static]

Definition at line 55 of file initvga.c.

Referenced by InitVGAMode(), and VGAResetDevice().

{
   SIZE_T i;

   /* Update misc output register */
   VideoPortWritePortUchar(MISC, Registers->Misc);

   /* Synchronous reset on */
   VideoPortWritePortUchar(SEQ, 0x00);
   VideoPortWritePortUchar(SEQDATA, 0x01);

   /* Write sequencer registers */
   for (i = 1; i < sizeof(Registers->Sequencer); i++)
   {
      VideoPortWritePortUchar(SEQ, i);
      VideoPortWritePortUchar(SEQDATA, Registers->Sequencer[i]);
   }

   /* Synchronous reset off */
   VideoPortWritePortUchar(SEQ, 0x00);
   VideoPortWritePortUchar(SEQDATA, 0x03);

   /* Deprotect CRT registers 0-7 */
   VideoPortWritePortUchar(CRTC, 0x11);
   VideoPortWritePortUchar(CRTCDATA, Registers->CRT[0x11] & 0x7f);

   /* Write CRT registers */
   for (i = 0; i < sizeof(Registers->CRT); i++)
   {
      VideoPortWritePortUchar(CRTC, i);
      VideoPortWritePortUchar(CRTCDATA, Registers->CRT[i]);
   }

   /* Write graphics controller registers */
   for (i = 0; i < sizeof(Registers->Graphics); i++)
   {
      VideoPortWritePortUchar(GRAPHICS, i);
      VideoPortWritePortUchar(GRAPHICSDATA, Registers->Graphics[i]);
   }

   /* Write attribute controller registers */
   for (i = 0; i < sizeof(Registers->Attribute); i++)
   {
      VideoPortReadPortUchar(STATUS);
      VideoPortWritePortUchar(ATTRIB, i);
      VideoPortWritePortUchar(ATTRIB, Registers->Attribute[i]);
   }

   /* Renable screen. */
   VideoPortWritePortUchar(ATTRIB, 0x20);
}

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