-- Only Once, calling order --
ChipIdentify (SMIIdentify)
ChipProbe (SMIProbe)
	Passive only, no ram determination, no writing
	
-- For each ScrnInfoRec, still calling order --
ChipPreInit (SMIPreInit)
	Allows probing and mapping, hardware must remain unchanged
  ChipGetRec
  
ChipScreenInit
  ChipMapMem
  ChipSave
    vgaHWSaveMMIO
  ChipModeInit
    vtSema=TRUE
    ChipWriteMode
      vgaHWRestoreMMIO

$XFree86: xc/programs/Xserver/hw/xfree86/drivers/siliconmotion/CALLMAP,v 1.2 2006/01/09 14:59:58 dawes Exp $
