/**
@see DVBT_NIM_FP_GET_RF_POWER_LEVEL_DBM
*/
s32 rtl2832_tda18272_GetRfPowerLevelDbm(DVBT_NIM_MODULE *pNim, s64 *pRfPowerLevelDbm)
{
DVBT_DEMOD_MODULE *pDemod;
u64 FsmStage;
s64 IfAgc;
// Get demod module.
pDemod = pNim->pDemod;
// Get FSM stage and IF AGC value.
if(pDemod->GetRegBitsWithPage(pDemod, DVBT_FSM_STAGE, &FsmStage) != FUNCTION_SUCCESS)
goto error_status_get_registers;
if(pDemod->GetIfAgc(pDemod, &IfAgc) != FUNCTION_SUCCESS)
goto error_status_get_registers;
// Determine signal strength according to FSM stage and IF AGC value.
if(FsmStage < 10)
*pRfPowerLevelDbm = -120;
else
{
if(IfAgc > -1250)
*pRfPowerLevelDbm = -71 - (IfAgc / 165);
else
*pRfPowerLevelDbm = -60;
}
return FUNCTION_SUCCESS;
error_status_get_registers:
return FUNCTION_ERROR;
}
// Additional definition for mt_control.c
UData_t
demod_get_pd(
handle_t demod_handle,
uint16_t *pd_value
)
{
DVBT_DEMOD_MODULE *pDemod;
unsigned long RssiR;
// Get demod module.
pDemod = (DVBT_DEMOD_MODULE *)demod_handle;
// Get RSSI_R value.
if(pDemod->GetRegBitsWithPage(pDemod, DVBT_RSSI_R, &RssiR) != FUNCTION_SUCCESS)
goto error_status_get_registers;
// Set pd_value according to RSSI_R.
*pd_value = (uint16_t)RssiR;
return MT_OK;
error_status_get_registers:
return MT_COMM_ERR;
}
UData_t
demod_set_bbagclim(
handle_t demod_handle,
int on_off_status
)
{
DVBT_DEMOD_MODULE *pDemod;
unsigned long IfAgcMinBinary;
long IfAgcMinInt;
// Get demod module.
pDemod = (DVBT_DEMOD_MODULE *)demod_handle;
// Get IF_AGC_MIN binary value.
if(pDemod->GetRegBitsWithPage(pDemod, DVBT_IF_AGC_MIN, &IfAgcMinBinary) != FUNCTION_SUCCESS)
goto error_status_get_registers;
// Convert IF_AGC_MIN binary value to integer.
IfAgcMinInt = BinToSignedInt(IfAgcMinBinary, RTL2832_MT2266_IF_AGC_MIN_BIT_NUM);
// Modify IF_AGC_MIN integer according to on_off_status.
switch(on_off_status)
{
case 1:
IfAgcMinInt += RTL2832_MT2266_IF_AGC_MIN_INT_STEP;
if(IfAgcMinInt > RTL2832_MT2266_IF_AGC_MIN_INT_MAX)
IfAgcMinInt = RTL2832_MT2266_IF_AGC_MIN_INT_MAX;
break;
default:
case 0:
IfAgcMinInt -= RTL2832_MT2266_IF_AGC_MIN_INT_STEP;
if(IfAgcMinInt < RTL2832_MT2266_IF_AGC_MIN_INT_MIN)
IfAgcMinInt = RTL2832_MT2266_IF_AGC_MIN_INT_MIN;
break;
}
// Convert modified IF_AGC_MIN integer to binary value.
IfAgcMinBinary = SignedIntToBin(IfAgcMinInt, RTL2832_MT2266_IF_AGC_MIN_BIT_NUM);
// Set IF_AGC_MIN with modified binary value.
if(pDemod->SetRegBitsWithPage(pDemod, DVBT_IF_AGC_MIN, IfAgcMinBinary) != FUNCTION_SUCCESS)
goto error_status_set_registers;
return MT_OK;
error_status_set_registers:
error_status_get_registers:
return MT_COMM_ERR;
}
/**
@brief Get tuner RSSI value when calibration is on.
One can use rtl2832_fc0013_GetTunerRssiCalOn() to get tuner calibration-on RSSI value.
@param [in] pNim The NIM module pointer
@retval FUNCTION_SUCCESS Get tuner calibration-on RSSI value successfully.
@retval FUNCTION_ERROR Get tuner calibration-on RSSI value unsuccessfully.
*/
int
rtl2832_fc0013_GetTunerRssiCalOn(
DVBT_NIM_MODULE *pNim
)
{
TUNER_MODULE *pTuner;
DVBT_DEMOD_MODULE *pDemod;
FC0013_EXTRA_MODULE *pTunerExtra;
RTL2832_FC0013_EXTRA_MODULE *pNimExtra;
BASE_INTERFACE_MODULE *pBaseInterface;
// Get tuner module and demod module.
pTuner = pNim->pTuner;
pDemod = pNim->pDemod;
// Get tuner extra module.
pTunerExtra = &(pTuner->Extra.Fc0013);
// Get NIM extra module.
pNimExtra = &(pNim->Extra.Rtl2832Fc0013);
// Get NIM base interface.
pBaseInterface = pNim->pBaseInterface;
// Set tuner EN_CAL_RSSI to 0x1.
if(fc0013_SetRegMaskBits(pTuner, 0x9, 4, 4, 0x1) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
// Set tuner LNA_POWER_DOWN to 0x1.
if(fc0013_SetRegMaskBits(pTuner, 0x6, 0, 0, 0x1) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
// Wait 100 ms.
pBaseInterface->WaitMs(pBaseInterface, 100);
// Get demod RSSI_R when tuner RSSI calibration is on.
if(pDemod->GetRegBitsWithPage(pDemod, DVBT_RSSI_R, &(pNimExtra->RssiRCalOn)) != FUNCTION_SUCCESS)
goto error_status_get_registers;
// Set tuner EN_CAL_RSSI to 0x0.
if(fc0013_SetRegMaskBits(pTuner, 0x9, 4, 4, 0x0) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
// Set tuner LNA_POWER_DOWN to 0x0.
if(fc0013_SetRegMaskBits(pTuner, 0x6, 0, 0, 0x0) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
return FUNCTION_SUCCESS;
error_status_get_registers:
error_status_set_registers:
return FUNCTION_ERROR;
}
UData_t
tuner_set_bw_narrow(
handle_t tuner_handle,
handle_t demod_handle
)
{
DVBT_DEMOD_MODULE *pDemod;
int DemodBandwidthMode;
unsigned long AciDetInd;
unsigned int TunerBandwidthHz;
unsigned int TargetTunerBandwidthHz;
// Get demod module.
pDemod = (DVBT_DEMOD_MODULE *)demod_handle;
// Get demod bandwidth mode.
if(pDemod->GetBandwidthMode(pDemod, &DemodBandwidthMode) != FUNCTION_SUCCESS)
goto error_status_execute_function;
// Get demod ACI_DET_IND.
if(pDemod->GetRegBitsWithPage(pDemod, DVBT_ACI_DET_IND, &AciDetInd) != FUNCTION_SUCCESS)
goto error_status_get_registers;
// Determine tuner target bandwidth according to ACI_DET_IND.
if(AciDetInd == 0x1)
{
// Choose narrow target bandwidth.
switch(DemodBandwidthMode)
{
case DVBT_BANDWIDTH_6MHZ: TargetTunerBandwidthHz = MT2266_BANDWIDTH_5MHZ; break;
case DVBT_BANDWIDTH_7MHZ: TargetTunerBandwidthHz = MT2266_BANDWIDTH_6MHZ; break;
default:
case DVBT_BANDWIDTH_8MHZ: TargetTunerBandwidthHz = MT2266_BANDWIDTH_7MHZ; break;
}
}
else
{
// Choose normal target bandwidth.
switch(DemodBandwidthMode)
{
case DVBT_BANDWIDTH_6MHZ: TargetTunerBandwidthHz = MT2266_BANDWIDTH_6MHZ; break;
case DVBT_BANDWIDTH_7MHZ: TargetTunerBandwidthHz = MT2266_BANDWIDTH_7MHZ; break;
default:
case DVBT_BANDWIDTH_8MHZ: TargetTunerBandwidthHz = MT2266_BANDWIDTH_8MHZ; break;
}
}
// Get tuner bandwidth.
if(MT_IS_ERROR(MT2266_GetParam(tuner_handle, MT2266_OUTPUT_BW, &TunerBandwidthHz)))
goto error_status_get_tuner_bandwidth;
// Set tuner bandwidth with normal setting according to demod bandwidth mode.
if(TunerBandwidthHz != TargetTunerBandwidthHz)
{
if(MT_IS_ERROR(MT2266_SetParam(tuner_handle, MT2266_OUTPUT_BW, TargetTunerBandwidthHz)))
goto error_status_set_tuner_bandwidth;
}
return MT_OK;
error_status_set_tuner_bandwidth:
error_status_get_tuner_bandwidth:
error_status_get_registers:
error_status_execute_function:
return MT_COMM_ERR;
}
/**
@brief Update tuner LNA_GAIN with RSSI.
One can use rtl2832_fc0013_UpdateTunerLnaGainWithRssi() to update tuner LNA_GAIN with RSSI.
@param [in] pNim The NIM module pointer
@retval FUNCTION_SUCCESS Update tuner LNA_GAIN with RSSI successfully.
@retval FUNCTION_ERROR Update tuner LNA_GAIN with RSSI unsuccessfully.
*/
int
rtl2832_fc0013_UpdateTunerLnaGainWithRssi(
DVBT_NIM_MODULE *pNim
)
{
TUNER_MODULE *pTuner;
DVBT_DEMOD_MODULE *pDemod;
FC0013_EXTRA_MODULE *pTunerExtra;
RTL2832_FC0013_EXTRA_MODULE *pNimExtra;
unsigned long RssiRCalOff;
long RssiRDiff;
unsigned char LnaGain;
unsigned char ReadValue;
// added from Fitipower, 2011-2-23, v0.8
int boolVhfFlag; // 0:false, 1:true
int boolEnInChgFlag; // 0:false, 1:true
int intGainShift;
// Get tuner module and demod module.
pTuner = pNim->pTuner;
pDemod = pNim->pDemod;
// Get tuner extra module.
pTunerExtra = &(pTuner->Extra.Fc0013);
// Get NIM extra module.
pNimExtra = &(pNim->Extra.Rtl2832Fc0013);
// Get demod RSSI_R when tuner RSSI calibration in off.
// Note: Tuner EN_CAL_RSSI and LNA_POWER_DOWN are set to 0x0 after rtl2832_fc0013_GetTunerRssiCalOn() executing.
if(pDemod->GetRegBitsWithPage(pDemod, DVBT_RSSI_R, &RssiRCalOff) != FUNCTION_SUCCESS)
goto error_status_get_registers;
// To avoid the wrong rssi calibration value in the environment with strong RF pulse signal.
if(RssiRCalOff < pNimExtra->RssiRCalOn)
pNimExtra->RssiRCalOn = RssiRCalOff;
// Calculate RSSI_R difference.
RssiRDiff = RssiRCalOff - pNimExtra->RssiRCalOn;
// Get tuner LNA_GAIN.
if(fc0013_GetRegMaskBits(pTuner, 0x14, 4, 0, &LnaGain) != FC0013_I2C_SUCCESS)
goto error_status_get_registers;
// Determine next LNA_GAIN according to RSSI_R difference and current LNA_GAIN.
switch(LnaGain)
{
default:
boolVhfFlag = 0;
boolEnInChgFlag = 1;
intGainShift = 10;
LnaGain = FC0013_LNA_GAIN_HIGH_19;
// Set tuner LNA_GAIN.
if(fc0013_SetRegMaskBits(pTuner, 0x14, 4, 0, LnaGain) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
break;
case FC0013_LNA_GAIN_HIGH_19:
if(RssiRDiff >= 10)
{
boolVhfFlag = 1;
boolEnInChgFlag = 0;
intGainShift = 10;
LnaGain = FC0013_LNA_GAIN_HIGH_17;
// Set tuner LNA_GAIN.
if(fc0013_SetRegMaskBits(pTuner, 0x14, 4, 0, LnaGain) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
break;
}
else
{
goto success_status_Lna_Gain_No_Change;
}
case FC0013_LNA_GAIN_HIGH_17:
if(RssiRDiff <= 2)
{
boolVhfFlag = 0;
boolEnInChgFlag = 1;
intGainShift = 10;
LnaGain = FC0013_LNA_GAIN_HIGH_19;
// Set tuner LNA_GAIN.
if(fc0013_SetRegMaskBits(pTuner, 0x14, 4, 0, LnaGain) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
break;
}
else if(RssiRDiff >= 24)
{
boolVhfFlag = 0;
boolEnInChgFlag = 0;
intGainShift = 7;
LnaGain = FC0013_LNA_GAIN_MIDDLE;
// Set tuner LNA_GAIN.
if(fc0013_SetRegMaskBits(pTuner, 0x14, 4, 0, LnaGain) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
break;
}
else
{
goto success_status_Lna_Gain_No_Change;
}
case FC0013_LNA_GAIN_MIDDLE:
if(RssiRDiff >= 38)
{
boolVhfFlag = 0;
boolEnInChgFlag = 0;
intGainShift = 7;
LnaGain = FC0013_LNA_GAIN_LOW;
// Set tuner LNA_GAIN.
if(fc0013_SetRegMaskBits(pTuner, 0x14, 4, 0, LnaGain) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
break;
}
else if(RssiRDiff <= 5)
{
boolVhfFlag = 1;
boolEnInChgFlag = 0;
intGainShift = 10;
LnaGain = FC0013_LNA_GAIN_HIGH_17;
// Set tuner LNA_GAIN.
if(fc0013_SetRegMaskBits(pTuner, 0x14, 4, 0, LnaGain) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
break;
}
else
{
goto success_status_Lna_Gain_No_Change;
}
case FC0013_LNA_GAIN_LOW:
if(RssiRDiff <= 2)
{
boolVhfFlag = 0;
boolEnInChgFlag = 0;
intGainShift = 7;
LnaGain = FC0013_LNA_GAIN_MIDDLE;
// Set tuner LNA_GAIN.
if(fc0013_SetRegMaskBits(pTuner, 0x14, 4, 0, LnaGain) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
break;
}
else
{
goto success_status_Lna_Gain_No_Change;
}
}
if(fc0013_GetRegMaskBits(pTuner, 0x14, 7, 0, &ReadValue) != FC0013_I2C_SUCCESS)
goto error_status_get_registers;
if( (ReadValue & 0x60) == 0 ) // disable UHF & GPS ==> lock VHF frequency
{
boolVhfFlag = 1;
}
if( boolVhfFlag == 1 )
{
//FC0013_Write(0x07, (FC0013_Read(0x07) | 0x10)); // VHF = 1
if(fc0013_GetRegMaskBits(pTuner, 0x07, 7, 0, &ReadValue) != FC0013_I2C_SUCCESS)
goto error_status_get_registers;
if(fc0013_SetRegMaskBits(pTuner, 0x07, 7, 0, ReadValue | 0x10) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
}
else
{
//FC0013_Write(0x07, (FC0013_Read(0x07) & 0xEF)); // VHF = 0
if(fc0013_GetRegMaskBits(pTuner, 0x07, 7, 0, &ReadValue) != FC0013_I2C_SUCCESS)
goto error_status_get_registers;
if(fc0013_SetRegMaskBits(pTuner, 0x07, 7, 0, ReadValue & 0xEF) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
}
if( boolEnInChgFlag == 1 )
{
//FC0013_Write(0x0A, (FC0013_Read(0x0A) | 0x20)); // EN_IN_CHG = 1
if(fc0013_GetRegMaskBits(pTuner, 0x0A, 7, 0, &ReadValue) != FC0013_I2C_SUCCESS)
goto error_status_get_registers;
if(fc0013_SetRegMaskBits(pTuner, 0x0A, 7, 0, ReadValue | 0x20) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
}
else
{
//FC0013_Write(0x0A, (FC0013_Read(0x0A) & 0xDF)); // EN_IN_CHG = 0
if(fc0013_GetRegMaskBits(pTuner, 0x0A, 7, 0, &ReadValue) != FC0013_I2C_SUCCESS)
goto error_status_get_registers;
if(fc0013_SetRegMaskBits(pTuner, 0x0A, 7, 0, ReadValue & 0xDF) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
}
if( intGainShift == 10 )
{
//FC0013_Write(0x07, (FC0013_Read(0x07) & 0xF0) | 0x0A); // GS = 10
if(fc0013_GetRegMaskBits(pTuner, 0x07, 7, 0, &ReadValue) != FC0013_I2C_SUCCESS)
goto error_status_get_registers;
if(fc0013_SetRegMaskBits(pTuner, 0x07, 7, 0, (ReadValue & 0xF0) | 0x0A) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
}
else
{
//FC0013_Write(0x07, (FC0013_Read(0x07) & 0xF0) | 0x07); // GS = 7
if(fc0013_GetRegMaskBits(pTuner, 0x07, 7, 0, &ReadValue) != FC0013_I2C_SUCCESS)
goto error_status_get_registers;
if(fc0013_SetRegMaskBits(pTuner, 0x07, 7, 0, (ReadValue & 0xF0) | 0x07) != FC0013_I2C_SUCCESS)
goto error_status_set_registers;
}
success_status_Lna_Gain_No_Change:
return FUNCTION_SUCCESS;
error_status_get_registers:
error_status_set_registers:
return FUNCTION_ERROR;
}