int32 PciHandle::write64(uint64 offset, uint64 value)
{
if(hDriver != INVALID_HANDLE_VALUE)
{
PCICFG_Request req;
ULONG64 result;
DWORD reslength = 0;
req.bus = bus;
req.dev = device;
req.func = function;
req.bytes = sizeof(uint64);
req.reg = (uint32)offset;
req.write_value = value;
BOOL status = DeviceIoControl(hDriver, IO_CTL_PCICFG_WRITE, &req, sizeof(PCICFG_Request), &result, sizeof(uint64), &reslength, NULL);
if (!status)
{
//std::cerr << "Error writing PCI Config space at bus "<<bus<<" dev "<< device<<" function "<< function <<" offset "<< offset << " size "<< req.bytes << ". Windows error: "<<GetLastError()<<std::endl;
}
return reslength;
}
cvt_ds cvt;
cvt.ui64 = value;
BOOL status = WritePciConfigDwordEx(pciAddress,(DWORD)offset,cvt.ui32.low);
status &= WritePciConfigDwordEx(pciAddress,((DWORD)offset)+sizeof(uint32),cvt.ui32.high);
return status?sizeof(uint64):0;
}
BOOL SysWritePciConfigDwordEx(DWORD pciAddress, DWORD regAddress, DWORD value)
{
if (SpecialEcsAccessRequired(regAddress)) {
return SpecialEcsAccess(true, pciAddress, regAddress, &value);
}
return WritePciConfigDwordEx(pciAddress, regAddress, value);
}
