ASX: adapter/main.c

00001 /* $Header: /Repository/apps/asx/examples/adapter/main.c,v 1.5 2006/01/18 20:43:29 as-tfe Exp $ */
00002 #include "stdio.h"
00003 #include "stdlib.h"
00004 #include "asx.h"
00005 
00006 int CheckError(ASX_HANDLE hObj, int nLine);
00007 
00008 ASX_HANDLE hSystem=0;
00009 
00010 int main(int argc, char* argv[])
00011 {
00012 
00013     ASX_ERROR asxError;
00014     int nAdapters=0;
00015     int i;
00016 
00017     // create the system
00018     ASX_System_Create(ASX_SYSTEM_TYPE_HPI,&hSystem);
00019     CheckError(hSystem, __LINE__);
00020 
00021     // find out how many adapters there are
00022     asxError = ASX_System_GetAdapterCount(hSystem,&nAdapters);
00023     CheckError(hSystem, __LINE__);
00024     printf("There are %d audio adapters in the system \n", nAdapters);
00025 
00026     // loop over the adapters
00027     for(i=0;i<nAdapters;i++)
00028     {
00029         char *pszAdapterName;
00030         ASX_HANDLE hAdapter;
00031         unsigned long lSerial;
00032         char *pszRevision;
00033         int nLen;
00034         int nDspUtilization;
00035         ASX_HANDLE hMixer;
00036 
00037 
00038         ASX_System_GetAdapter(hSystem,i,&hAdapter);
00039         CheckError(hSystem, __LINE__);
00040 
00041         ASX_Adapter_GetName(hAdapter,0,0,&nLen);
00042         CheckError(hAdapter, __LINE__);
00043         pszAdapterName = (char *)malloc(nLen);
00044         ASX_Adapter_GetName(hAdapter,pszAdapterName,nLen,&nLen);
00045         CheckError(hAdapter, __LINE__);
00046         printf("Adapter [%d] is %s \n", i,pszAdapterName);
00047 
00048         ASX_Adapter_GetSerialNumber(hAdapter,&lSerial);
00049         CheckError(hAdapter, __LINE__);
00050         printf("Serial is %ld \n", lSerial);
00051 
00052         pszRevision = (char *)malloc(ASX_SHORT_STRING);
00053         ASX_Adapter_GetHardwareRevision(hAdapter,pszRevision);
00054         CheckError(hAdapter, __LINE__);
00055         printf("Revision is %s \n", pszRevision);
00056 
00057         ASX_Adapter_GetDspUtilization(hAdapter,1,&nDspUtilization);
00058         CheckError(hAdapter, __LINE__);
00059         printf("Utilization is %d percent \n", nDspUtilization);
00060 
00061         free(pszAdapterName);
00062         free(pszRevision);
00063     }
00064 
00065     ASX_System_Delete(hSystem);
00066     printf("Press ENTER to exit\n");
00067     getchar();
00068     return 0;
00069 }
00070 
00071 int CheckError(ASX_HANDLE hObj, int nLine)
00072 {
00073     int nError;
00074     int asxSubSystemErrorCode=0;
00075     char *pszAsxErrorString;
00076     char *pszAsxSubSystemErrorString;
00077     int nLen1,nLen2;
00078 
00079     ASX_Error_GetLast( hObj, &nError, &asxSubSystemErrorCode);
00080     if(!nError)
00081         return 0;
00082     ASX_Error_GetLastString( hObj, 0,0,&nLen1,0,0,&nLen2);
00083     pszAsxErrorString = (char *)malloc(nLen1);
00084     pszAsxSubSystemErrorString = (char *)malloc(nLen2);
00085     ASX_Error_GetLastString( hObj, pszAsxErrorString,nLen1,&nLen1,pszAsxSubSystemErrorString,nLen2,&nLen2);
00086     printf("Error: #%d, %s - Subsystem Error: #%ld, %s \n", 
00087         nError,  
00088         pszAsxErrorString, 
00089         asxSubSystemErrorCode, 
00090         pszAsxSubSystemErrorString );
00091     printf("When called from source %s line %d\n",__FILE__,nLine);
00092 
00093     printf("Press ENTER to exit\n");
00094     getchar();
00095     free(pszAsxErrorString);
00096     free(pszAsxSubSystemErrorString);
00097     ASX_System_Delete(hSystem);
00098     exit(1);
00099     return 1;
00100 }
00101