static CellularPktStatus_t _parseUrcIndicationCsq()

in modules/bg96/cellular_bg96_urc_handler.c [215:305]
77 lines of code
16 McCabe index (conditional complexity)

static CellularPktStatus_t _parseUrcIndicationCsq( const CellularContext_t * pContext,
                                                   char * pUrcStr )
{
    char * pToken = NULL;
    CellularATError_t atCoreStatus = CELLULAR_AT_SUCCESS;
    CellularPktStatus_t pktStatus = CELLULAR_PKT_STATUS_OK;
    CellularError_t cellularStatus = CELLULAR_SUCCESS;
    int32_t retStrtoi = 0;
    int16_t csqRssi = CELLULAR_INVALID_SIGNAL_VALUE, csqBer = CELLULAR_INVALID_SIGNAL_VALUE;
    CellularSignalInfo_t signalInfo = { 0 };
    char * pLocalUrcStr = pUrcStr;

    if( ( pContext == NULL ) || ( pUrcStr == NULL ) )
    {
        atCoreStatus = CELLULAR_AT_BAD_PARAMETER;
    }
    else
    {
        /* Parse the RSSI index from string and convert it. */
        atCoreStatus = Cellular_ATGetNextTok( &pLocalUrcStr, &pToken );
    }

    if( atCoreStatus == CELLULAR_AT_SUCCESS )
    {
        atCoreStatus = Cellular_ATStrtoi( pToken, 10, &retStrtoi );
    }

    if( atCoreStatus == CELLULAR_AT_SUCCESS )
    {
        if( ( retStrtoi >= INT16_MIN ) && ( retStrtoi <= ( int32_t ) INT16_MAX ) )
        {
            cellularStatus = _Cellular_ConvertCsqSignalRssi( ( int16_t ) retStrtoi, &csqRssi );

            if( cellularStatus != CELLULAR_SUCCESS )
            {
                atCoreStatus = CELLULAR_AT_BAD_PARAMETER;
            }
        }
        else
        {
            atCoreStatus = CELLULAR_AT_ERROR;
        }
    }

    /* Parse the BER index from string and convert it. */
    if( atCoreStatus == CELLULAR_AT_SUCCESS )
    {
        atCoreStatus = Cellular_ATGetNextTok( &pLocalUrcStr, &pToken );
    }

    if( atCoreStatus == CELLULAR_AT_SUCCESS )
    {
        atCoreStatus = Cellular_ATStrtoi( pToken, 10, &retStrtoi );
    }

    if( atCoreStatus == CELLULAR_AT_SUCCESS )
    {
        if( ( retStrtoi >= INT16_MIN ) &&
            ( retStrtoi <= ( int32_t ) INT16_MAX ) )
        {
            cellularStatus = _Cellular_ConvertCsqSignalBer( ( int16_t ) retStrtoi, &csqBer );

            if( cellularStatus != CELLULAR_SUCCESS )
            {
                atCoreStatus = CELLULAR_AT_BAD_PARAMETER;
            }
        }
        else
        {
            atCoreStatus = CELLULAR_AT_ERROR;
        }
    }

    /* Handle the callback function. */
    if( atCoreStatus == CELLULAR_AT_SUCCESS )
    {
        signalInfo.rssi = csqRssi;
        signalInfo.rsrp = CELLULAR_INVALID_SIGNAL_VALUE;
        signalInfo.rsrq = CELLULAR_INVALID_SIGNAL_VALUE;
        signalInfo.ber = csqBer;
        signalInfo.bars = CELLULAR_INVALID_SIGNAL_BAR_VALUE;
        _Cellular_SignalStrengthChangedCallback( pContext, CELLULAR_URC_EVENT_SIGNAL_CHANGED, &signalInfo );
    }

    if( atCoreStatus != CELLULAR_AT_SUCCESS )
    {
        pktStatus = _Cellular_TranslateAtCoreStatus( atCoreStatus );
    }

    return pktStatus;
}