IBASE IB945 - Manual (Page 63)

APPENDIX
IB945 User’s Manual 59
//---------------------------------------------------------------------------
//
// 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 "W627DHG.H"
#include <dos.h>
//---------------------------------------------------------------------------
unsigned int W627DHG_BASE;
void Unlock_W627DHG (void);
void Lock_W627DHG (void);
//---------------------------------------------------------------------------
unsigned int Init_W627DHG(void)
{
unsigned int result;
unsigned char ucDid;
W627DHG_BASE = 0x4E;
result = W627DHG_BASE;
ucDid = Get_W627DHG_Reg(0x20);
if (ucDid == 0xA0) //W83627DHG??
{ goto Init_Finish; }
else if (ucDid == 0xB0) //W83627DHG-P??
{ goto Init_Finish; }
W627DHG_BASE = 0x2E;
result = W627DHG_BASE;
ucDid = Get_W627DHG_Reg(0x20);
if (ucDid == 0xA0) //W83627DHG??
{ goto Init_Finish; }
else if (ucDid == 0xB0) //W83627DHG-P??
{ goto Init_Finish; }
W627DHG_BASE = 0x00;
result = W627DHG_BASE;
Init_Finish:
return
(result);
}
//---------------------------------------------------------------------------
void Unlock_W627DHG (void)
{
outportb(W627DHG_INDEX_PORT, W627DHG_UNLOCK);
outportb(W627DHG_INDEX_PORT, W627DHG_UNLOCK);
}
//---------------------------------------------------------------------------
void Lock_W627DHG (void)
{
outportb(W627DHG_INDEX_PORT, W627DHG_LOCK);
}
//---------------------------------------------------------------------------
void Set_W627DHG_LD( unsigned char LD)
{
Unlock_W627DHG();
outportb(W627DHG_INDEX_PORT, W627DHG_REG_LD);