static int ChannelLock()
{
Dword dwFrequency = 0;
Word wBandwidth = 0;
Dword dwStatus = 0;
Bool boolIsLock = 0;
int res;
printf("\n=> Please Input Frequency (KHz): ");
res = scanf("%lu", &dwFrequency);
gFreq = dwFrequency;
printf("\n=> Please Choose Bandwidth (0:8MHz 1:7MHz 2:6MHz): ");
res = scanf("%d",&gChoseBand);
if (gChoseBand == 0)
wBandwidth = 8;
else if (gChoseBand == 1)
wBandwidth = 7;
else
wBandwidth = 6;
printf("\n\n**************** Lock Status ****************");
printf("\nFrequency = %lu KHz\n", dwFrequency);
printf("Bandwidth = %i MHz\n\n", wBandwidth);
dwStatus = DTV_AcquireChannel(dwFrequency, wBandwidth);
if (dwStatus)
printf("DTV_AcquireChannel() return error!\n");
dwStatus = DTV_DisablePIDTbl();
if (dwStatus)
printf("DTV_DisablePIDTbl() return error!\n");
dwStatus = DTV_IsLocked((Bool *)&boolIsLock);
if (dwStatus)
printf("DTV_IsLocked() return error!\n");
if (boolIsLock)
printf("*** Channel Locked ***\n");
else
printf("*** Channel Unlocked ***\n");
return 0;
}
//==================================================================================================
static int ChannelLock(options_t *options)
{
Dword dwFrequency = 0;
Word wBandwidth = 0;
Dword dwStatus = 0;
Bool boolIsLock = 0;
int res;
dwFrequency = options->frequency;
gFreq = options->frequency;
gChoseBand = options->bandwidth;
fprintf(stderr, "\n");
if(gChoseBand>=2000 && gChoseBand<3000) wBandwidth = 2;
else if(gChoseBand>=3000 && gChoseBand<4000) wBandwidth = 3;
else if(gChoseBand>=4000 && gChoseBand<5000) wBandwidth = 4;
else if(gChoseBand>=5000 && gChoseBand<6000) wBandwidth = 5;
else if(gChoseBand>=6000 && gChoseBand<7000) wBandwidth = 6;
else if(gChoseBand>=7000 && gChoseBand<8000) wBandwidth = 7;
else if(gChoseBand>=8000 && gChoseBand<9000) wBandwidth = 8;
else
{
fprintf(stderr, "No Supported Bandwidth!\n");
return ERR_INVALID_BW;
}
fprintf(stderr, "Trying to lock:\n");
fprintf(stderr, "Frequency ...: %lu KHz\n", dwFrequency);
fprintf(stderr, "Bandwidth ...: %i MHz\n\n", wBandwidth);
dwStatus = DTV_AcquireChannel(dwFrequency, wBandwidth);
if (dwStatus)
{
fprintf(stderr, "DTV_AcquireChannel() returned error %s (%lx)\n", DTV_Error(dwStatus), dwStatus);
}
dwStatus = DTV_DisablePIDTbl();
if (dwStatus)
{
fprintf(stderr, "DTV_DisablePIDTbl() returned error %s (%lx)\n", DTV_Error(dwStatus), dwStatus);
}
dwStatus = DTV_IsLocked((Bool *)&boolIsLock);
if (dwStatus)
{
fprintf(stderr, "DTV_IsLocked() returned error %s (%lx)\n", DTV_Error(dwStatus), dwStatus);
}
if (boolIsLock)
{
fprintf(stderr, "*** Channel Locked ***\n");
}
else
{
fprintf(stderr, "*** Channel Unlocked ***\n");
}
return 0;
}
//==================================================================================================
static int MultiChannelTest()
{
Dword dwFrequency = 0;
Word wBandwidth = 0;
Dword dwStatus = 0;
Bool boolIsLock = 0;
Dword dwpPostErrCnt; // ErrorBitCount
Dword dwpPostBitCnt; // TotalBitCount
Word wpAbortCnt; // number of abort RSD packet
Word wpQuality; // signal quality (0 - 100)
Word wpStrength; // signal strength (0 - 100)
DTVStatistic StatisicEx;
int startFreq, stopFreq;
int channels = 0, res;
FILE* pFile = NULL;
pFile = fopen("scanlog.txt", "w");
printf("\n=> Please Input Start Frequency (KHz): ");
res = scanf("%d", &startFreq);
printf("\n=> Please Input Stop Frequency (KHz): ");
res = scanf("%d", &stopFreq);
printf("\n=> Please Choose Bandwidth (0:8MHz 1:7MHz 2:6MHz): ");
res = scanf("%d",&gChoseBand);
if (gChoseBand == 0)
wBandwidth = 8;
else if (gChoseBand == 1)
wBandwidth = 7;
else
wBandwidth = 6;
gFreq = startFreq;
while (gFreq <= stopFreq)
{
dwFrequency = gFreq;
dwStatus = DTV_AcquireChannel(dwFrequency, wBandwidth);
if (dwStatus)
printf("DTV_AcquireChannel() return error!\n");
usleep(2500000);
dwStatus = DTV_GetStatistic(10000,
(Dword *)&dwpPostErrCnt,
(Dword *)&dwpPostBitCnt,
(Word *)&wpAbortCnt,
(Word *)&wpQuality,
(Word *)&wpStrength);
if (dwStatus)
printf("DTV_GetStatistic() return error!\n");
dwStatus = DTV_GetStatisticEx(&StatisicEx);
if (dwStatus)
printf("DTV_GetStatisticEx() return error!\n");
dwStatus = DTV_IsLocked((Bool *)&boolIsLock);
if (dwStatus)
printf("DTV_IsLocked() return error!\n");
if (boolIsLock) {
channels ++;
printf("\n====== Statistics ======\n");
printf("Frequency = %i KHz\n", gFreq);
printf("Demod locked: %d\n", StatisicEx.signalLocked);
printf("TPS locked :%d\n", StatisicEx.signalPresented);
printf("Quality: %d\n", wpQuality);
printf("Strength: %d\n", wpStrength);
if (dwpPostBitCnt != 0)
printf("BER: %3.3e\n", ((float)dwpPostErrCnt)/dwpPostBitCnt);
else
printf("BER: %3.3e\n", (double) dwpPostBitCnt);
printf("Abort Count: %d\n", wpAbortCnt);
printf("===============================\n");
if (pFile) {
fprintf(pFile, "\n====== Statistics ======\n");
fprintf(pFile, "Frequency = %i KHz\n", gFreq);
fprintf(pFile, "Demod locked: %d\n", StatisicEx.signalLocked);
fprintf(pFile, "TPS locked :%d\n", StatisicEx.signalPresented);
fprintf(pFile, "Quality: %d\n", wpQuality);
fprintf(pFile, "Strength: %d\n", wpStrength);
if (dwpPostBitCnt != 0)
fprintf(pFile, "BER: %3.3e\n", ((float)dwpPostErrCnt)/dwpPostBitCnt);
else
fprintf(pFile, "BER: %3.3e\n", (double) dwpPostBitCnt);
fprintf(pFile, "Abort Count: %d\n", wpAbortCnt);
fprintf(pFile, "===============================\n");
}
}
if (gChoseBand == 0)
gFreq = gFreq + 8000;
else if (gChoseBand == 1)
gFreq = gFreq + 7000;
else
gFreq = gFreq + 6000;
}
printf("\n============ Analysis ============");
printf("\n Frequency %d(KHz) ~ %d(KHz)", startFreq, stopFreq);
printf("\n Scan Channel : %d channels Locked \n", channels);
if (pFile) {
fprintf(pFile, "\n============ Analysis ============");
fprintf(pFile, "\n Frequency %d(KHz) ~ %d(KHz)", startFreq, stopFreq);
fprintf(pFile, "\n Scan Channel : %d channels Locked \n", channels);
fclose(pFile);
printf("\n Save log to file scanlog.txt\n\n");
}
return 0;
}
