YW_ErrorType_T D0367qam_ScanFreq(TUNER_IOREG_DeviceMap_t *DemodDeviceMap,
IOARCH_Handle_t DemodIOHandle)
{
YW_ErrorType_T Error = YW_NO_ERROR;
IOARCH_Handle_t IOHandle = DemodIOHandle;
TUNER_IOREG_DeviceMap_t *DeviceMap = DemodDeviceMap;
FE_367qam_InternalParams_t pParams;
U32 ZigzagScan = 0;
S32 SearchRange_Hz_Tmp;
FirstTimeBER[0] = 1;
YWLIB_Memset(&pParams, 0, sizeof(FE_367qam_InternalParams_t));
pParams.State = FE_367qam_NOTUNER;
pParams.Modulation = D0367qam_GeModulation(DeviceMap, IOHandle);
pParams.Crystal_Hz = DeviceMap->RegExtClk; //30M 还是27M，由硬件决定
pParams.SearchRange_Hz = 280000;/*280 kHz*/ //question
pParams.SymbolRate_Bds = D0367qam_GeSymbolRate(DeviceMap, IOHandle);////
pParams.Frequency_kHz = D0367qam_GeFrequencyKhz(DeviceMap, IOHandle);////
pParams.AdcClock_Hz = FE_367qam_GetADCFreq(DeviceMap,IOHandle,pParams.Crystal_Hz);
pParams.MasterClock_Hz = FE_367qam_GetMclkFreq(DeviceMap,IOHandle,pParams.Crystal_Hz);
printk("demod_d0367qam_ScanFreq Frequency === %d\n", pParams.Frequency_kHz);
printk("demod_d0367qam_ScanFreq Modulation === %d\n", pParams.Modulation);
printk("SymbolRate_Bds =========== %d\n", pParams.SymbolRate_Bds);
// printk("pParams.AdcClock_Hz ====== %d\n",pParams.AdcClock_Hz);
// printk("pParams.MasterClock_Hz ===== %d\n",pParams.MasterClock_Hz);
#if 0
if (Inst->DriverParam.Cab.TunerDriver.tuner_SetFreq != NULL)
{
Error = (Inst->DriverParam.Cab.TunerDriver.tuner_SetFreq)(Index,pParams.Frequency_kHz, NULL);
}
#else
D0367qam_TunerSetFreq(DeviceMap, IOHandle);
#endif /* 0 */
/* Sets the QAM size and all the related parameters */
D367qam_SetQamSize(TUNER_TUNER_SHARP5469C, DeviceMap,IOHandle,pParams.Frequency_kHz,pParams.SymbolRate_Bds,pParams.Modulation);
/* Sets the symbol and all the related parameters */
FE_367qam_SetSymbolRate(DeviceMap,IOHandle,pParams.AdcClock_Hz,pParams.MasterClock_Hz,pParams.SymbolRate_Bds,pParams.Modulation);
/* Zigzag Algorithm test */
if(25*pParams.SearchRange_Hz > pParams.SymbolRate_Bds)
{
pParams.SearchRange_Hz = -(S32)(pParams.SymbolRate_Bds)/25;
ZigzagScan = 1;
}
/* Search algorithm launch, [-1.1*RangeOffset, +1.1*RangeOffset] scan */
pParams.State = D0367qam_Algo(DeviceMap, IOHandle, &pParams);
SearchRange_Hz_Tmp = pParams.SearchRange_Hz; //lwj add
if(ZigzagScan&&(pParams.State!=FE_367qam_DATAOK))
{
do
{
#if 1 //lwj modify
pParams.SearchRange_Hz = -pParams.SearchRange_Hz;
if(pParams.SearchRange_Hz>0)
pParams.DerotOffset_Hz = -pParams.DerotOffset_Hz + pParams.SearchRange_Hz;
else
pParams.DerotOffset_Hz = -pParams.DerotOffset_Hz;
#endif
/* Search algorithm launch, [-1.1*RangeOffset, +1.1*RangeOffset] scan */
pParams.State = D0367qam_Algo(DeviceMap, IOHandle, &pParams);
}
while(((pParams.DerotOffset_Hz+pParams.SearchRange_Hz)>=-(S32)SearchRange_Hz_Tmp)&&(pParams.State!=FE_367qam_DATAOK));
}
/* check results */
if( (pParams.State == FE_367qam_DATAOK) && (!Error))
{
/* update results */
printk("TUNER_STATUS_LOCKED #######################\n");
//Inst->Status = TUNER_STATUS_LOCKED;
//pResult->Frequency_kHz = pIntParams->DemodResult.Frequency_kHz;
//pResult->SymbolRate_Bds = pIntParams->DemodResult.SymbolRate_Bds;
//pResult->SpectInv = pIntParams->DemodResult.SpectInv;
//pResult->Modulation = pIntParams->DemodResult.Modulation;
}
else
{
printk("TUNER_STATUS_UNLOCKED #######################\n");
//Inst->Status = TUNER_STATUS_UNLOCKED;
}
return(Error);
}
/***********************************************************************
函数名称: demod_d0367qam_ScanFreq
函数说明: 搜索频率
修改记录: 日 期 作 者 修定
--------- --------- -----
2010.11.11 lwj 创建
************************************************************************/
YW_ErrorType_T demod_d0367qam_ScanFreq(U8 Index)
{
YW_ErrorType_T Error = YW_NO_ERROR;
TUNER_ScanTaskParam_T *Inst;
IOARCH_Handle_t IOHandle;
TUNER_IOREG_DeviceMap_t *DeviceMap;
FE_367qam_InternalParams_t pParams;
U32 ZigzagScan = 0;
S32 SearchRange_Hz_Tmp;
Inst = TUNER_GetScanInfo(Index);
IOHandle = Inst->DriverParam.Cab.DemodIOHandle;
DeviceMap = &Inst->DriverParam.Cab.Demod_DeviceMap;
FirstTimeBER[Index] = 1;
YWLIB_Memset(&pParams, 0, sizeof(FE_367qam_InternalParams_t));
pParams.State = FE_367qam_NOTUNER;
/*
--- Modulation type is set to
*/
switch(Inst->DriverParam.Cab.Param.Modulation)////
{
case YWTUNER_MOD_QAM_16 :
pParams.Modulation = FE_CAB_MOD_QAM16;
break;
case YWTUNER_MOD_QAM_32 :
pParams.Modulation = FE_CAB_MOD_QAM32;
break;
case YWTUNER_MOD_QAM_64 :
pParams.Modulation = FE_CAB_MOD_QAM64;
break;
case YWTUNER_MOD_QAM_128 :
pParams.Modulation = FE_CAB_MOD_QAM128;
break;
case YWTUNER_MOD_QAM_256 :
pParams.Modulation = FE_CAB_MOD_QAM256;
break;
default:
pParams.Modulation = FE_CAB_MOD_QAM64;
break;
}
pParams.Crystal_Hz = DeviceMap->RegExtClk; //30M 还是27M，由硬件决定
pParams.SearchRange_Hz = 280000;/*280 kHz*/ //question
pParams.SymbolRate_Bds = Inst->DriverParam.Cab.Param.SymbolRateB;////
pParams.Frequency_kHz = Inst->DriverParam.Cab.Param.FreqKHz;////
pParams.AdcClock_Hz = FE_367qam_GetADCFreq(DeviceMap,IOHandle,pParams.Crystal_Hz);
pParams.MasterClock_Hz = FE_367qam_GetMclkFreq(DeviceMap,IOHandle,pParams.Crystal_Hz);
// printk("demod_d0367qam_ScanFreq Frequency === %d\n", pParams.Frequency_kHz);
// printk("SymbolRate_Bds =========== %d\n", pParams.SymbolRate_Bds);
// printk("pParams.AdcClock_Hz ====== %d\n",pParams.AdcClock_Hz);
// printk("pParams.MasterClock_Hz ===== %d\n",pParams.MasterClock_Hz);
if (Inst->DriverParam.Cab.TunerDriver.tuner_SetFreq != NULL)
{
Error = (Inst->DriverParam.Cab.TunerDriver.tuner_SetFreq)(Index, pParams.Frequency_kHz, NULL);
}
/* Sets the QAM size and all the related parameters */
FE_367qam_SetQamSize(Inst,DeviceMap,IOHandle,pParams.Frequency_kHz,pParams.SymbolRate_Bds,pParams.Modulation);
/* Sets the symbol and all the related parameters */
FE_367qam_SetSymbolRate(DeviceMap,IOHandle,pParams.AdcClock_Hz,pParams.MasterClock_Hz,pParams.SymbolRate_Bds,pParams.Modulation);
/* Zigzag Algorithm test */
if(25*pParams.SearchRange_Hz > pParams.SymbolRate_Bds)
{
pParams.SearchRange_Hz = -(S32)(pParams.SymbolRate_Bds)/25;
ZigzagScan = 1;
}
/* Search algorithm launch, [-1.1*RangeOffset, +1.1*RangeOffset] scan */
pParams.State = FE_367qam_Algo(Index, &pParams);
SearchRange_Hz_Tmp = pParams.SearchRange_Hz; //lwj add
if(ZigzagScan&&(pParams.State!=FE_367qam_DATAOK))
{
do
{
#if 1 //lwj modify
pParams.SearchRange_Hz = -pParams.SearchRange_Hz;
if(pParams.SearchRange_Hz>0)
pParams.DerotOffset_Hz = -pParams.DerotOffset_Hz + pParams.SearchRange_Hz;
else
pParams.DerotOffset_Hz = -pParams.DerotOffset_Hz;
#endif
/* Search algorithm launch, [-1.1*RangeOffset, +1.1*RangeOffset] scan */
pParams.State = FE_367qam_Algo(Index,&pParams);
}
while(((pParams.DerotOffset_Hz+pParams.SearchRange_Hz)>=-(S32)SearchRange_Hz_Tmp)&&(pParams.State!=FE_367qam_DATAOK));
}
/* check results */
if( (pParams.State == FE_367qam_DATAOK) && (!Error))
{
/* update results */
//printk("TUNER_STATUS_LOCKED #######################\n");
Inst->Status = TUNER_INNER_STATUS_LOCKED;
//pResult->Frequency_kHz = pIntParams->DemodResult.Frequency_kHz;
//pResult->SymbolRate_Bds = pIntParams->DemodResult.SymbolRate_Bds;
//pResult->SpectInv = pIntParams->DemodResult.SpectInv;
//pResult->Modulation = pIntParams->DemodResult.Modulation;
}
else
{
Inst->Status = TUNER_INNER_STATUS_UNLOCKED;
}
return(Error);
}