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Re: PowerTune
by
krumplee
on 16/05/2011, 21:35:13 UTC
@krumplee: how do you use this undocumented function?

Download ADL SDK from http://developer.amd.com/Downloads/ADL_SDK_3.0.zip
It is enough to copy adl_sdk.h into /usr/include

Save the following code as powercontrol.cpp

Code:
#include
#include
#include

using namespace std;

extern "C"
{
    int ADL_Main_Control_Create (ADL_MAIN_MALLOC_CALLBACK, int);
    int ADL_Adapter_NumberOfAdapters_Get(int *);
    int ADL_Overdrive5_PowerControl_Set(int, int);
    int ADL_Overdrive5_PowerControl_Get(int, int *, int *);
}

void* __stdcall Alloc ( int iSize )
{
    void* lpBuffer = malloc ( iSize );
    return lpBuffer;
}

void __stdcall ADL_Main_Memory_Free ( void** lpBuffer )
{
    if ( NULL != *lpBuffer )
    {
        free ( *lpBuffer );
        *lpBuffer = NULL;
    }
}

int main()
{
        int adapters, a=99, b=99;
        if(ADL_Main_Control_Create (Alloc, 1) != ADL_OK)
        {
                cout << "ADL initialization error!" << endl;
                return -1;
        }
        
        if(ADL_Adapter_NumberOfAdapters_Get(&adapters) != ADL_OK)
        {
                cout << "Cannot get the number of adapters!" << endl;
                return -1;
        }
        cout << "Found " << adapters << " adapters" << endl;
        for(int i=0; i        {
                if(ADL_Overdrive5_PowerControl_Set(i, 20) != ADL_OK)
                {
                        cout << "Failed to set " << i << " power control" << endl;
                        return -1;
                } else { cout << "Value set for " << i << endl; }
                
                if(ADL_Overdrive5_PowerControl_Get(i, &a, &b) != ADL_OK)
                {
                        cout << "Failed to get " << i << " power control" << endl;
                        return -1;
                }
                cout << "result: " << a << "%, b: " << b << endl;
        }
        return 0;
}

Finally compile:
g++ -DLINUX -o powercontrol powercontrol.cpp -latiadlxx