IBASE Technology MT800M-AIC, User Manual

Page: 69 / 71

Appendix
MT800M-AIC User’s Manual
61
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OFANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TOTHE
//IMPLIEDWARRANTIESOFMERCHANTABILITYAND/ORFITNESSFORAPARTICULAR
// PURPOSE.
//
//---------------------------------------------------------------------------
#include"F81966.H"
#include<dos.h>
//---------------------------------------------------------------------------
unsigned intF81966_BASE;
void Unlock_F81966 (void);
void Lock_F81966(void);
//---------------------------------------------------------------------------
unsignedintInit_F81966(void)
{
unsigned int result;
unsigned charucDid;
F81966_BASE =0x4E;
result =F81966_BASE;
ucDid =Get_F81966_Reg(0x20);
if (ucDid==0x07) //Fintek81966
{ gotoInit_Finish; }
F81966_BASE =0x2E;
result =F81966_BASE;
ucDid =Get_F81966_Reg(0x20);
if (ucDid==0x07) //Fintek81966
{ gotoInit_Finish; }
F81966_BASE =0x00;
result =F81966_BASE;
Init_Finish:
return(result);
}
//---------------------------------------------------------------------------
void Unlock_F81966(void)
{
outportb(F81966_INDEX_PORT, F81966_UNLOCK);
outportb(F81966_INDEX_PORT,F81966_UNLOCK);
}
//---------------------------------------------------------------------------
void Lock_F81966(void)
{
outportb(F81966_INDEX_PORT,F81966_LOCK);
}
//---------------------------------------------------------------------------
void Set_F81966_LD( unsigned charLD)
{
Unlock_F81966();
outportb(F81966_INDEX_PORT,F81966_REG_LD);
outportb(F81966_DATA_PORT, LD);
Lock_F81966();
}