CellularError_t Cellular_ModuleEnableUE()

in modules/sara_r4/cellular_r4.c [332:431]
79 lines of code
12 McCabe index (conditional complexity)

CellularError_t Cellular_ModuleEnableUE( CellularContext_t * pContext )
{
    CellularError_t cellularStatus = CELLULAR_SUCCESS;
    CellularAtReq_t atReqGetNoResult =
    {
        NULL,
        CELLULAR_AT_NO_RESULT,
        NULL,
        NULL,
        NULL,
        0
    };
    CellularAtReq_t atReqGetWithResult =
    {
        NULL,
        CELLULAR_AT_WO_PREFIX,
        NULL,
        NULL,
        NULL,
        0
    };
    char pAtCmdBuf[ CELLULAR_AT_CMD_MAX_SIZE ] = { 0 };

    if( pContext != NULL )
    {
        /* Disable echo. */
        atReqGetWithResult.pAtCmd = "ATE0";
        cellularStatus = sendAtCommandWithRetryTimeout( pContext, &atReqGetWithResult );

        if( cellularStatus == CELLULAR_SUCCESS )
        {
            /* Disable DTR function. */
            atReqGetNoResult.pAtCmd = "AT&D0";
            cellularStatus = sendAtCommandWithRetryTimeout( pContext, &atReqGetNoResult );
        }

        if( cellularStatus == CELLULAR_SUCCESS )
        {
            /* Enable RTS/CTS hardware flow control. */
            atReqGetNoResult.pAtCmd = "AT+IFC=2,2";
            cellularStatus = sendAtCommandWithRetryTimeout( pContext, &atReqGetNoResult );
        }

        if( cellularStatus == CELLULAR_SUCCESS )
        {
            /* Report verbose mobile termination error. */
            atReqGetNoResult.pAtCmd = "AT+CMEE=2";
            cellularStatus = sendAtCommandWithRetryTimeout( pContext, &atReqGetNoResult );
        }

        if( cellularStatus == CELLULAR_SUCCESS )
        {
            /* Setup mobile network operator profiles. */
            /* Setting +UMNOPROF profile will automatically select suitable values for +URAT and +UBANDMASK. */

            /* Check current MNO profile first to avoid unneccessary modem reboot. */
            MNOProfileType_t currentMNOProfile = MNO_PROFILE_NOT_SET;
            cellularStatus = _Cellular_GetCurrentMNOProfile( pContext, &currentMNOProfile );

            LogInfo( ( "Cellular_ModuleEnableUE: currentMNOProfile = [%d], desiredProfile = [%d]", currentMNOProfile, CELLULAR_CONFIG_SARA_R4_SET_MNO_PROFILE ) );

            if( cellularStatus == CELLULAR_SUCCESS )
            {
                /* Set MNO profile if not set already */
                if( ( currentMNOProfile != CELLULAR_CONFIG_SARA_R4_SET_MNO_PROFILE ) && ( CELLULAR_CONFIG_SARA_R4_SET_MNO_PROFILE != MNO_PROFILE_NOT_SET ) )
                {
                    atReqGetNoResult.pAtCmd = pAtCmdBuf;
                    ( void ) snprintf( ( char * ) atReqGetNoResult.pAtCmd, CELLULAR_AT_CMD_MAX_SIZE, "%s%d", "AT+COPS=2;+UMNOPROF=", CELLULAR_CONFIG_SARA_R4_SET_MNO_PROFILE );
                    cellularStatus = sendAtCommandWithRetryTimeout( pContext, &atReqGetNoResult );

                    if( cellularStatus == CELLULAR_SUCCESS )
                    {
                        cellularStatus = rebootCellularModem( pContext, true, true );
                    }
                }

                #ifdef CELLULAR_CONFIG_SARA_R4_REBOOT_ON_INIT
                    else
                    {
                        cellularStatus = rebootCellularModem( pContext, true, true );
                    }
                #endif
            }
        }

        if( cellularStatus == CELLULAR_SUCCESS )
        {
            atReqGetNoResult.pAtCmd = "AT+COPS=0";
            cellularStatus = sendAtCommandWithRetryTimeout( pContext, &atReqGetNoResult );
        }

        if( cellularStatus == CELLULAR_SUCCESS )
        {
            atReqGetNoResult.pAtCmd = "AT+CFUN=1";
            cellularStatus = sendAtCommandWithRetryTimeout( pContext, &atReqGetNoResult );
        }
    }

    return cellularStatus;
}