//C++ syntax : HRESULT STDMETHODCALLTYPE OptimizeAccess(DATAFRAME* lpFrame, DEVREG* lpDevReg, VARIANT_BOOL * pRetVal);
public bool OptimizeAccess(IntPtr pDataFrame, IntPtr pDevReg)
{
strLastError = "";
if (pDataFrame == IntPtr.Zero || pDevReg == IntPtr.Zero)
{
strLastError = "调用参数错误。";
return(false);
}
UCView.DATAFRAME DataFrame = (UCView.DATAFRAME)Marshal.PtrToStructure(pDataFrame, typeof(UCView.DATAFRAME));
UCView.DEVREG DevReg = (UCView.DEVREG)Marshal.PtrToStructure(pDevReg, typeof(UCView.DEVREG));
//一定要首先判断地址
try
{
if (DataFrame.DevAddr.nAddr != DevReg.devAddr.nAddr)
{
return(false);
}
if (DataFrame.WRType == UCView.FT_WRITE)
{
return(DevReg.regAddr.nAddr == DataFrame.StartRegAddr.nAddr);
}
//Check if we can read this register together with this frame
if (DevReg.regType == 0)
{
return(DataFrame.RegType == 0);
}
if (DevReg.regType >= 1 && DevReg.regType <= 4)
{
return(DataFrame.RegType >= 1 && DataFrame.RegType <= 4);
}
if (DevReg.regType >= 5 && DevReg.regType <= 16)
{
return(DataFrame.RegType >= 5 && DataFrame.RegType <= 16);
}
if (DevReg.regType == 17)
{
return(DataFrame.RegType == 17);
}
return(true);
}
catch
{
Utility.Trace2Logger(atomMsgSrcName, "OptimizeAccess 遇到异常");
return(false);
}
}
//C++ syntax : HRESULT STDMETHODCALLTYPE CompileItem(const DEVREGINFO * lpRegInfo, DEVREG* lpDevReg, VARIANT_BOOL * pRetVal);
public bool CompileItem(IntPtr pRegInfo, IntPtr pDevReg)
{
strLastError = "";
if (pRegInfo == IntPtr.Zero || pDevReg == IntPtr.Zero)
{
return(false);
}
UCView.DEVREGINFO RegInfo = pRegInfo.GetStructure <UCView.DEVREGINFO>();
UCView.DEVREG DevReg = pDevReg.GetStructure <UCView.DEVREG>();
string ItemName = Marshal.PtrToStringAnsi(RegInfo.pszItemName);
string LibName = Marshal.PtrToStringAnsi(RegInfo.pszLibName);
if (ItemName.Length == 0)
{
strLastError = "寄存器名错。名称长度不能为0";
return(false);
}
int i = 0, ITEM_NUM = 0;
UCView.DEVITEM[] ucSurpportRegisters = GetRegister(LibName, ref ITEM_NUM);
if (ITEM_NUM == 0 || ucSurpportRegisters == null)
{
strLastError = String.Format("这个驱动不支持名为'{0}'的设备。请与开发者联系。", LibName);
return(false);
}
for (i = 0; i < ITEM_NUM; i++)
{
int registerLen = ucSurpportRegisters[i].ItemName.Length;
if (ItemName.Length < registerLen)
{
continue;
}
//比较前几个字符是否一致？
if (ItemName.Substring(0, registerLen) != ucSurpportRegisters[i].ItemName)
{
continue;
}
//需要寄存器序号吗？
UInt32 lowNo = ucSurpportRegisters[i].MinIndex;
UInt32 highNo = ucSurpportRegisters[i].MaxIndex;
if (highNo > lowNo)
{//需要寄存器号
if (ItemName.Length == registerLen)
{
strLastError = "缺少寄存器地址。";
return(false);
}
int digPos;
for (digPos = registerLen; digPos < ItemName.Length; digPos++)
{
if (g_szRegIndexChars.IndexOf(ItemName[digPos]) < 0)
{
break;
}
}
if (digPos < ItemName.Length)
{
continue;
}
UInt32 No = uint.Parse(ItemName.Substring(registerLen));
if (No < lowNo)
{
strLastError = "寄存器范围越下界。";
return(false);
}
else if (No > highNo)
{
strLastError = "寄存器范围越上界。";
return(false);
}
DevReg.regType = (UInt32)i;
DevReg.regAddr.nAddr = No;
}
else //不需要寄存器号
{
if (ItemName.Length != registerLen)
{
continue;
}
//用户定义寄存器便是该寄存器
DevReg.regType = (UInt32)i;
DevReg.regAddr.nAddr = 0;
}
if ((RegInfo.DataType & ucSurpportRegisters[i].DataType) == 0)
{
strLastError = "寄存器数据类型错。";
return(false);
}
Marshal.StructureToPtr(DevReg, pDevReg, true);
return(true);
}
//查找完所有寄存器名都不匹配。
strLastError = "寄存器名错。没有找到这个名称。";
return(false);
}
