ATI Fanspeed Control
Hi,
I am trying to implement the fan control. But it does not show me the expected result. I see that there is no information being stored in my fanspeedinfo structure.
the fanspeedinfo structure has the following
internal struct ADLFanSpeedInfo
{
int Size;
internal int iSize;
internal int iFlags;
internal int iMinPercent;
internal int iMaxPercent;
internal int iMinRPM;
internal int iMaxRPM;
}
In the below listed code i tried to assign the iMinPercent value of the structure to a label, but it shows me 0(since there is no information for iMinPercent available in the structure).
if (null != ADL.ADL_Adapter_AdapterInfo_Get)
{
ADLRet = ADL.ADL_Adapter_AdapterInfo_Get(AdapterBuffer, size);
if (ADL.ADL_SUCCESS == ADLRet)
{
OSAdapterInfoData = (ADLAdapterInfoArray)Marshal.PtrToStructure(AdapterBuffer, OSAdapterInfoData.GetType());
int IsActive = 0;
for (int i = 0; i < NumberOfAdapters; i++)
{
if (null != ADL.ADL_Adapter_Active_Get)
ADLRet = ADL.ADL_Adapter_Active_Get(OSAdapterInfoData.ADLAdapterInfo.AdapterIndex, ref IsActive);
if (ADL.ADL_SUCCESS == ADLRet)
{
display_dev_lbl.Text =System.Convert.ToString(OSAdapterInfoData.ADLAdapterInfo.AdapterIndex);
//int value = OSAdapterInfoData.ADLAdapterInfo.AdapterIndex;
if (null != ADL.ADL_Overdrive5_FanSpeedInfo_Get)
{
IntPtr fanbuffer = IntPtr.Zero;
int sizefan = Marshal.SizeOf(OSFanSpeedData);
fanbuffer = Marshal.AllocCoTaskMem((int)sizefan);
Marshal.StructureToPtr(OSFanSpeedData, fanbuffer, false);
ADLFanSpeedInfoArray x = new ADLFanSpeedInfoArray();
ADLRet = ADL.ADL_Overdrive5_FanSpeedInfo_Get(OSAdapterInfoData.ADLAdapterInfo.AdapterIndex, 0, out x);
if (ADL.ADL_SUCCESS == ADLRet)
{
OSFanSpeedData = (ADLFanSpeedInfoArray)Marshal.PtrToStructure(fanbuffer, OSFanSpeedData.GetType());
fan_speed_lbl.Text = System.Convert.ToString(OSFanSpeedData.ADLFanSpeedInfo.iMinPercent);
}
else
{
}
}
}
}
}
Below are my delegate and enum declarations(in ADL.Cs) . Also other related info for your reference :
[DllImport(Atiadlxx_FileName)]
internal static extern int ADL_Overdrive5_FanSpeed_Get(int iAdapterIndex, int iThermalControllerIndex,out ADLFanSpeedValue lpFanSpeedValue);
[DllImport(Atiadlxx_FileName)]
public static extern int ADL_Overdrive5_FanSpeedInfo_Get(int iAdapterIndex, int iThermalControllerIndex,out ADLFanSpeedInfoArray lpFanSpeedInfo);
internal delegate int ADL_Overdrive5_FanSpeedInfo_Get(int iAdapterIndex, int iThermalControllerIndex,out ADLFanSpeedInfoArray lpFanSpeedInfo);
enum iFlags { ADL_DL_FANCTRL_SUPPORTS_PERCENT_READ = 1, ADL_DL_FANCTRL_SUPPORTS_PERCENT_WRITE = 2, ADL_DL_FANCTRL_SUPPORTS_RPM_READ = 4, ADL_DL_FANCTRL_SUPPORTS_RPM_WRITE = 8 }
#region ADLFanSpeedInfo
[StructLayout(LayoutKind.Sequential)]
internal struct ADLFanSpeedInfo
{
int Size;
internal int iSize;
internal int iFlags;
internal int iMinPercent;
internal int iMaxPercent;
internal int iMinRPM;
internal int iMaxRPM;
}
#region ADLFanSpeedValue
[StructLayout(LayoutKind.Sequential)]
internal struct ADLFanSpeedValue
{
int Size;
internal int iSize;
internal int iSpeedType;
internal int iFanSpeed;
internal int iFlags;
}
#endregion ADLFanSpeedValue
#region ADL_Overdrive5_FanSpeedInfo_Get
internal static ADL_Overdrive5_FanSpeedInfo_Get ADL_Overdrive5_FanSpeedInfo_Get
{
get
{
if (!ADL_Overdrive5_FanSpeedInfo_Get_Check && null == ADL_Overdrive5_FanSpeedInfo_Get_)
{
ADL_Overdrive5_FanSpeedInfo_Get_Check = true;
if (ADLCheckLibrary.IsFunctionValid("ADL_Overdrive5_FanSpeedInfo_Get"))
{
ADL_Overdrive5_FanSpeedInfo_Get_ = ADLImport.ADL_Overdrive5_FanSpeedInfo_Get;
}
}
return ADL_Overdrive5_FanSpeedInfo_Get_;
}
}
private static ADL_Overdrive5_FanSpeedInfo_Get ADL_Overdrive5_FanSpeedInfo_Get_ = null;
private static bool ADL_Overdrive5_FanSpeedInfo_Get_Check = false;
#endregion ADL_Overdrive5_FanSpeedInfo_Get
#region ADL_Overdrive5_FanSpeed_Get
internal static ADL_Overdrive5_FanSpeed_Get ADL_Overdrive5_FanSpeed_Get
{
get
{
if (!ADL_Overdrive5_FanSpeed_Get_Check && null == ADL_Overdrive5_FanSpeed_Get_)
{
ADL_Overdrive5_FanSpeed_Get_Check = true;
if (ADLCheckLibrary.IsFunctionValid("ADL_Overdrive5_FanSpeed_Get"))
{
ADL_Overdrive5_FanSpeed_Get_ = ADLImport.ADL_Overdrive5_FanSpeed_Get;
}
}
return ADL_Overdrive5_FanSpeed_Get_;
}
}
private static ADL_Overdrive5_FanSpeed_Get ADL_Overdrive5_FanSpeed_Get_ = null;
private static bool ADL_Overdrive5_FanSpeed_Get_Check = false;
#endregion ADL_Overdrive5_FanSpeed_Get
I hope someone can help me in completing this tool .
Thanks in advance.
here is the tool that i'm working on... http://www.ngohq.com/skd-s-corner/15719-skd-stt-tray-tool.html
Regards
SaiKamalDoss
