routines.c

ddk开发pci范例,使用9054芯片

    Adapter->GoodReceives += Adapter->StatsCounters->RcvGoodFrames;

    // update transmit error counts
    Adapter->TxAbortExcessCollisions += Adapter->StatsCounters->XmtMaxCollisions;
    Adapter->TxLateCollisions += Adapter->StatsCounters->XmtLateCollisions;
    Adapter->TxDmaUnderrun += Adapter->StatsCounters->XmtUnderruns;
    Adapter->TxLostCRS += Adapter->StatsCounters->XmtLostCRS;
    Adapter->TxOKButDeferred += Adapter->StatsCounters->XmtDeferred;
    Adapter->OneRetry += Adapter->StatsCounters->XmtSingleCollision;
    Adapter->MoreThanOneRetry += Adapter->StatsCounters->XmtMultCollisions;
    Adapter->TotalRetries += Adapter->StatsCounters->XmtTotalCollisions;

    // update receive error counts
    Adapter->RcvCrcErrors += Adapter->StatsCounters->RcvCrcErrors;
    Adapter->RcvAlignmentErrors += Adapter->StatsCounters->RcvAlignmentErrors;
    Adapter->RcvResourceErrors += Adapter->StatsCounters->RcvResourceErrors;
    Adapter->RcvDmaOverrunErrors += Adapter->StatsCounters->RcvOverrunErrors;
    Adapter->RcvCdtFrames += Adapter->StatsCounters->RcvCdtErrors;
    Adapter->RcvRuntErrors += Adapter->StatsCounters->RcvShortFrames;
}


//-----------------------------------------------------------------------------
// Procedure:   NICIssueSelectiveReset
//
// Description: This routine will issue a selective reset, forcing the adapter
//              the CU and RU back into their idle states.  The receive unit
//              will then be re-enabled if it was previously enabled, because
//              an RNR interrupt will be generated when we abort the RU.
//
// Arguments:
//      Adapter - ptr to Adapter object instance
//
// Returns:
//      NOTHING
//-----------------------------------------------------------------------------

VOID 
NICIssueSelectiveReset(
    PFDO_DATA Adapter
    )
{
    NTSTATUS     status;
    BOOLEAN         bResult;
    
    // Wait for the SCB to clear before we check the CU status.
    if (!MP_TEST_FLAG(Adapter, fMP_ADAPTER_HARDWARE_ERROR))
    {
        WaitScb(Adapter);
    }

    // If we have issued any transmits, then the CU will either be active, or
    // in the suspended state.  If the CU is active, then we wait for it to be
    // suspended.  If the the CU is suspended, then we need to put the CU back
    // into the idle state by issuing a selective reset.
    if (Adapter->TransmitIdle == FALSE)
    {
        // Wait up to 2 seconds for suspended state
        MP_STALL_AND_WAIT((Adapter->CSRAddress->ScbStatus & SCB_CUS_MASK) != SCB_CUS_ACTIVE, 2000, bResult) 
        if (!bResult)
        {
            MP_SET_HARDWARE_ERROR(Adapter);
        }

        // Check the current status of the receive unit
        if ((Adapter->CSRAddress->ScbStatus & SCB_RUS_MASK) != SCB_RUS_IDLE)
        {
            // Issue an RU abort.  Since an interrupt will be issued, the
            // RU will be started by the DPC.
            status = D100IssueScbCommand(Adapter, SCB_RUC_ABORT, TRUE);
        }

        // Issue a selective reset.
        DebugPrint(TRACE, DBG_HW_ACCESS, "CU suspended. ScbStatus=%04x Issue selective reset\n", Adapter->CSRAddress->ScbStatus);
        Adapter->CSRAddress->Port = PORT_SELECTIVE_RESET;

        // Wait after a port sel-reset command
        KeStallExecutionProcessor (NIC_DELAY_POST_RESET);

        // wait up to 2 ms for port command to complete                                                           
        MP_STALL_AND_WAIT(Adapter->CSRAddress->Port == 0, 2, bResult) 
        if (!bResult)
        {
            MP_SET_HARDWARE_ERROR(Adapter);
        }

        // disable interrupts after issuing reset, because the int
        // line gets raised when reset completes.
        NICDisableInterrupt(Adapter);

        // Restore the transmit software flags.
        Adapter->TransmitIdle = TRUE;
        Adapter->ResumeWait = TRUE;
    }
}

VOID 
NICIssueFullReset(
    PFDO_DATA Adapter
    )
{
    BOOLEAN     bResult;

    NICIssueSelectiveReset(Adapter);

    Adapter->CSRAddress->Port = PORT_SOFTWARE_RESET;

    // wait up to 2 ms for port command to complete                                                           
    MP_STALL_AND_WAIT(Adapter->CSRAddress->Port == 0, 2, bResult);
    if (!bResult)
    {
        MP_SET_HARDWARE_ERROR(Adapter);
        return;
    }

    NICDisableInterrupt(Adapter);
}


//-----------------------------------------------------------------------------
// Procedure:   D100SubmitCommandBlockAndWait
//
// Description: This routine will submit a command block to be executed, and
//              then it will wait for that command block to be executed.  Since
//              board ints will be disabled, we will ack the interrupt in
//              this routine.
//
// Arguments:
//      Adapter - ptr to Adapter object instance
//
// Returns:
//  NDIS_STATUS_SUCCESS
//  STATUS_DEVICE_DATA_ERROR
//-----------------------------------------------------------------------------

NTSTATUS 
D100SubmitCommandBlockAndWait(
    IN PFDO_DATA Adapter
    )
{
    NTSTATUS     status;
    BOOLEAN         bResult;

    // Points to the Non Tx Command Block.
    volatile PNON_TRANSMIT_CB CommandBlock = Adapter->NonTxCmdBlock;

    // Set the Command Block to be the last command block
    CommandBlock->NonTxCb.Config.ConfigCBHeader.CbCommand |= CB_EL_BIT;

    // Clear the status of the command block
    CommandBlock->NonTxCb.Config.ConfigCBHeader.CbStatus = 0;

#if DBG
    // Don't try to start the CU if the command unit is active.
    if ((Adapter->CSRAddress->ScbStatus & SCB_CUS_MASK) == SCB_CUS_ACTIVE)
    {
        DebugPrint(ERROR, DBG_HW_ACCESS, "Scb %p ScbStatus %04x\n", Adapter->CSRAddress, Adapter->CSRAddress->ScbStatus);
        ASSERT(FALSE);
        MP_SET_HARDWARE_ERROR(Adapter);
        return(STATUS_DEVICE_DATA_ERROR);
    }
#endif

    // Start the command unit.
    D100IssueScbCommand(Adapter, SCB_CUC_START, FALSE);

    // Wait for the SCB to clear, indicating the completion of the command.
    if (!WaitScb(Adapter))
    {
        return(STATUS_DEVICE_DATA_ERROR);
    }

    // Wait for some status, timeout value 3 secs
    MP_STALL_AND_WAIT(CommandBlock->NonTxCb.Config.ConfigCBHeader.CbStatus & CB_STATUS_COMPLETE, 3000, bResult);
    if (!bResult)
    {
        MP_SET_HARDWARE_ERROR(Adapter);
        return(STATUS_DEVICE_DATA_ERROR);
    }

    // Ack any interrupts
    if (Adapter->CSRAddress->ScbStatus & SCB_ACK_MASK)
    {
        // Ack all pending interrupts now
        Adapter->CSRAddress->ScbStatus &= SCB_ACK_MASK;
    }

    // Check the status of the command, and if the command failed return FALSE,
    // otherwise return TRUE.
    if (!(CommandBlock->NonTxCb.Config.ConfigCBHeader.CbStatus & CB_STATUS_OK))
    {
        DebugPrint(ERROR, DBG_HW_ACCESS, "Command failed\n");
        MP_SET_HARDWARE_ERROR(Adapter);
        status = STATUS_DEVICE_DATA_ERROR;
    }
    else
        status = STATUS_SUCCESS;

    return(status);
}

//-----------------------------------------------------------------------------
// Procedure: GetConnectionStatus
//
// Description: This function returns the connection status that is
//              a required indication for PC 97 specification from MS
//              the value we are looking for is if there is link to the
//              wire or not.
//
// Arguments: IN Adapter structure pointer
//
// Returns:   NdisMediaStateConnected
//            NdisMediaStateDisconnected
//-----------------------------------------------------------------------------
MEDIA_STATE 
GetMediaState(
    IN PFDO_DATA Adapter
    )
{
    USHORT  MdiStatusReg = 0;
    BOOLEAN bResult1;
    BOOLEAN bResult2;
     
    
    // Read the status register at phy 1
    bResult1 = MdiRead(Adapter, MDI_STATUS_REG, Adapter->PhyAddress, TRUE, &MdiStatusReg);
    bResult2 = MdiRead(Adapter, MDI_STATUS_REG, Adapter->PhyAddress, TRUE, &MdiStatusReg);
    
    // if there is hardware failure, or let the state remains the same
    if (!bResult1 || !bResult2)
    {
        return Adapter->MediaState;
    }
    if (MdiStatusReg & MDI_SR_LINK_STATUS)
        return(Connected);
    else
        return(Disconnected);

}