AMI MI890, User Manual

Page: 59 / 62

APPENDIX
MI890 User’s Manual 55
File of the W627UHG.CPP
//---------------------------------------------------------------------------
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
// PURPOSE.
//
//---------------------------------------------------------------------------
#include "W627UHG.H"
#include <dos.h>
//---------------------------------------------------------------------------
unsigned int W627UHG_BASE;
void Unlock_W627UHG (void);
void Lock_W627UHG (void);
//---------------------------------------------------------------------------
unsigned int Init_W627UHG(void)
{
unsigned int result;
unsigned char ucDid;
W627UHG_BASE = 0x4E;
result = W627UHG_BASE;
ucDid = Get_W627UHG_Reg(0x20);
if (ucDid == 0xA2) //W83627UHG??
{ goto Init_Finish; }
W627UHG_BASE = 0x2E;
result = W627UHG_BASE;
ucDid = Get_W627UHG_Reg(0x20);
if (ucDid == 0xA2) //W83627UHG??
{ goto Init_Finish; }
W627UHG_BASE = 0x00;
result = W627UHG_BASE;
Init_Finish:
return (result);
}
//---------------------------------------------------------------------------
void Unlock_W627UHG (void)
{
outportb(W627UHG_INDEX_PORT, W627UHG_UNLOCK);
outportb(W627UHG_INDEX_PORT, W627UHG_UNLOCK);
}
//---------------------------------------------------------------------------
void Lock_W627UHG (void)
{
outportb(W627UHG_INDEX_PORT, W627UHG_LOCK);
}
//---------------------------------------------------------------------------
void Set_W627UHG_LD( unsigned char LD)