static void write_cmos(unsigned char address, unsigned char buf)
{
if(address >= EEPROMSIZE_BANK0) // 0~199
return ;
#if (defined(DMP_DOS_BC) || defined(DMP_DOS_DJGPP) || defined(DMP_DOS_WATCOM))
io_DisableINT();
#elif defined (DMP_LINUX)
lockCMOS();
#endif
void *pciDev = NULL;
pciDev = pci_Alloc(0x00, 0x07, 0x00);
if(pciDev == NULL)
{
#if (defined(DMP_DOS_BC) || defined(DMP_DOS_DJGPP) || defined(DMP_DOS_WATCOM))
Serial.print("CMOS device doesn't exist\n");
#elif (defined(DMP_LINUX))
printf("CMOS device doesn't exist\n");
#endif
return;
}
unsigned long int reg;
reg = pci_In32(pciDev, 0xc0);
if(address == 20 || address == 22) //special case
{
//Set bit 3 to access high 128 bytes RTC SRAM
pci_Out32(pciDev, 0xc0, reg | 0x00000008);
address = (address == 20)? 26:27;
io_outpb(0x70, address);
}
else if(address < 100) // 0~99 low page
{
//clear bit 3 to access low 128 bytes RTC SRAM
pci_Out32(pciDev, 0xc0, reg & 0xfffffff7);
io_outpb(0x70, address + 28);
}
else// 100~199 high page
{
//Set bit 3 to access high 128 bytes RTC SRAM
pci_Out32(pciDev, 0xc0, reg | 0x00000008);
address -= 100;
io_outpb(0x70, address + 28);
}
io_outpb(0x71, buf);
// Restore old register value
pci_Out32(pciDev, 0xc0, reg);
pci_Free(pciDev);
#if (defined(DMP_DOS_BC) || defined(DMP_DOS_DJGPP) || defined(DMP_DOS_WATCOM))
io_RestoreINT();
#elif defined (DMP_LINUX)
unLockCMOS();
#endif
}
DMPAPI(void) vx86_NBSB_Write(int fun, unsigned char offset, unsigned long val) {
if (VX86_pciDev[VX86_NB + fun] == NULL) return;
pci_Out32(VX86_pciDev[VX86_NB + fun], offset, val);
}
