/**
@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;
}
UData_t
demod_get_agc(
handle_t demod_handle,
uint16_t *rf_level,
uint16_t *bb_level
)
{
DVBT_DEMOD_MODULE *pDemod;
int RfAgc;
int IfAgc;
// Get demod module.
pDemod = (DVBT_DEMOD_MODULE *)demod_handle;
// Get RF and IF AGC value.
if(pDemod->GetRfAgc(pDemod, &RfAgc) != FUNCTION_SUCCESS)
goto error_status_get_registers;
if(pDemod->GetIfAgc(pDemod, &IfAgc) != FUNCTION_SUCCESS)
goto error_status_get_registers;
// Convert RF and IF AGC value to proper format.
*rf_level = (uint16_t)((RfAgc + (1 << (RTL2832_RF_AGC_REG_BIT_NUM - 1))) *
(1 << (MT2266_DEMOD_ASSUMED_AGC_REG_BIT_NUM - RTL2832_RF_AGC_REG_BIT_NUM)));
*bb_level = (uint16_t)((IfAgc + (1 << (RTL2832_IF_AGC_REG_BIT_NUM - 1))) *
(1 << (MT2266_DEMOD_ASSUMED_AGC_REG_BIT_NUM - RTL2832_IF_AGC_REG_BIT_NUM)));
return MT_OK;
error_status_get_registers:
return MT_COMM_ERR;
}