HAL_StatusTypeDef HAL_ETH_GetMACConfig()

in portable/NetworkInterface/STM32Hxx/stm32hxx_hal_eth.c [2023:2081]

• 48 lines of code
• 28 McCabe index (conditional complexity)

        HAL_StatusTypeDef HAL_ETH_GetMACConfig( ETH_HandleTypeDef * heth,
                                                ETH_MACConfigTypeDef * macconf )
        {
            if( macconf == NULL )
            {
                return HAL_ERROR;
            }

            /* Get MAC parameters */
            macconf->PreambleLength = READ_BIT( heth->Instance->MACCR, ETH_MACCR_PRELEN );
            macconf->DeferralCheck = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_DC ) >> 4 ) > 0U ) ? ENABLE : DISABLE;
            macconf->BackOffLimit = READ_BIT( heth->Instance->MACCR, ETH_MACCR_BL );
            macconf->RetryTransmission = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_DR ) >> 8 ) == 0U ) ? ENABLE : DISABLE;
            macconf->CarrierSenseDuringTransmit = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_DCRS ) >> 9 ) > 0U ) ? ENABLE : DISABLE;
            macconf->ReceiveOwn = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_DO ) >> 10 ) == 0U ) ? ENABLE : DISABLE;
            macconf->CarrierSenseBeforeTransmit = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_ECRSFD ) >> 11 ) > 0U ) ? ENABLE : DISABLE;
            macconf->LoopbackMode = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_LM ) >> 12 ) > 0U ) ? ENABLE : DISABLE;
            macconf->DuplexMode = READ_BIT( heth->Instance->MACCR, ETH_MACCR_DM );
            macconf->Speed = READ_BIT( heth->Instance->MACCR, ETH_MACCR_FES );
            macconf->JumboPacket = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_JE ) >> 16 ) > 0U ) ? ENABLE : DISABLE;
            macconf->Jabber = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_JD ) >> 17 ) == 0U ) ? ENABLE : DISABLE;
            macconf->Watchdog = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_WD ) >> 19 ) == 0U ) ? ENABLE : DISABLE;
            macconf->AutomaticPadCRCStrip = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_ACS ) >> 20 ) > 0U ) ? ENABLE : DISABLE;
            macconf->CRCStripTypePacket = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_CST ) >> 21 ) > 0U ) ? ENABLE : DISABLE;
            macconf->Support2KPacket = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_S2KP ) >> 22 ) > 0U ) ? ENABLE : DISABLE;
            macconf->GiantPacketSizeLimitControl = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_GPSLCE ) >> 23 ) > 0U ) ? ENABLE : DISABLE;
            macconf->InterPacketGapVal = READ_BIT( heth->Instance->MACCR, ETH_MACCR_IPG );
            macconf->ChecksumOffload = ( ( READ_BIT( heth->Instance->MACCR, ETH_MACCR_IPC ) >> 27 ) > 0U ) ? ENABLE : DISABLE;
            macconf->SourceAddrControl = READ_BIT( heth->Instance->MACCR, ETH_MACCR_SARC );

            macconf->GiantPacketSizeLimit = READ_BIT( heth->Instance->MACECR, ETH_MACECR_GPSL );
            macconf->CRCCheckingRxPackets = ( ( READ_BIT( heth->Instance->MACECR, ETH_MACECR_DCRCC ) >> 16 ) == 0U ) ? ENABLE : DISABLE;
            macconf->SlowProtocolDetect = ( ( READ_BIT( heth->Instance->MACECR, ETH_MACECR_SPEN ) >> 17 ) > 0U ) ? ENABLE : DISABLE;
            macconf->UnicastSlowProtocolPacketDetect = ( ( READ_BIT( heth->Instance->MACECR, ETH_MACECR_USP ) >> 18 ) > 0U ) ? ENABLE : DISABLE;
            macconf->ExtendedInterPacketGap = ( ( READ_BIT( heth->Instance->MACECR, ETH_MACECR_EIPGEN ) >> 24 ) > 0U ) ? ENABLE : DISABLE;
            macconf->ExtendedInterPacketGapVal = READ_BIT( heth->Instance->MACECR, ETH_MACECR_EIPG ) >> 25;


            macconf->ProgrammableWatchdog = ( ( READ_BIT( heth->Instance->MACWTR, ETH_MACWTR_PWE ) >> 8 ) > 0U ) ? ENABLE : DISABLE;
            macconf->WatchdogTimeout = READ_BIT( heth->Instance->MACWTR, ETH_MACWTR_WTO );

            macconf->TransmitFlowControl = ( ( READ_BIT( heth->Instance->MACTFCR, ETH_MACTFCR_TFE ) >> 1 ) > 0U ) ? ENABLE : DISABLE;
            macconf->ZeroQuantaPause = ( ( READ_BIT( heth->Instance->MACTFCR, ETH_MACTFCR_DZPQ ) >> 7 ) == 0U ) ? ENABLE : DISABLE;
            macconf->PauseLowThreshold = READ_BIT( heth->Instance->MACTFCR, ETH_MACTFCR_PLT );
            macconf->PauseTime = ( READ_BIT( heth->Instance->MACTFCR, ETH_MACTFCR_PT ) >> 16 );


            macconf->ReceiveFlowControl = ( READ_BIT( heth->Instance->MACRFCR, ETH_MACRFCR_RFE ) > 0U ) ? ENABLE : DISABLE;
            macconf->UnicastPausePacketDetect = ( ( READ_BIT( heth->Instance->MACRFCR, ETH_MACRFCR_UP ) >> 1 ) > 0U ) ? ENABLE : DISABLE;

            macconf->TransmitQueueMode = READ_BIT( heth->Instance->MTLTQOMR, ( ETH_MTLTQOMR_TTC | ETH_MTLTQOMR_TSF ) );

            macconf->ReceiveQueueMode = READ_BIT( heth->Instance->MTLRQOMR, ( ETH_MTLRQOMR_RTC | ETH_MTLRQOMR_RSF ) );
            macconf->ForwardRxUndersizedGoodPacket = ( ( READ_BIT( heth->Instance->MTLRQOMR, ETH_MTLRQOMR_FUP ) >> 3 ) > 0U ) ? ENABLE : DISABLE;
            macconf->ForwardRxErrorPacket = ( ( READ_BIT( heth->Instance->MTLRQOMR, ETH_MTLRQOMR_FEP ) >> 4 ) > 0U ) ? ENABLE : DISABLE;
            macconf->DropTCPIPChecksumErrorPacket = ( ( READ_BIT( heth->Instance->MTLRQOMR, ETH_MTLRQOMR_DISTCPEF ) >> 6 ) == 0U ) ? ENABLE : DISABLE;

            return HAL_OK;
        }