3c90x.h

3c90x网卡的驱动（Linux环境下的）

tc90x_CheckIfEEPROMBusy(
	IN PNIC_INFORMATION Adapter
	);

NIC_STATUS
tc90x_ReadEEPROM(
	IN PNIC_INFORMATION Adapter,
	IN USHORT EEPROMAddress,
	OUT PUSHORT Contents
	);

NIC_STATUS
tc90x_WriteEEPROM(
	IN PNIC_INFORMATION Adapter,
	IN USHORT EEPROMAddress,
	IN USHORT Data
	);

USHORT
tc90x_CalculateEEPROMChecksum1(  
	IN PNIC_INFORMATION Adapter
    	) ;


//
// --------------------- ISR.C definitions -------------------
//

VOID
NICInterrupt IRQ(
	INT Irq,
	PVOID DeviceId,
	PTREGS Registers
	);

VOID
tc90x_HostErrorEvent(
	IN PNIC_INFORMATION Adapter
	);

VOID
tc90x_CountDownTimerEvent(
	IN PNIC_INFORMATION Adapter
    	);


VOID
tc90x_UpdateStatisticsEvent(
	IN PNIC_INFORMATION Adapter
    	);




//
// --------------------- RECEIVE.C definitions -------------------
//

VOID
tc90x_UpCompleteEvent(
	IN PNIC_INFORMATION Adapter
    	);

NIC_STATUS
tc90x_ResetAndEnableReceiver(
	IN PNIC_INFORMATION Adapter
    	);


//
// --------------------- TIMER.C definitions -------------------
//

VOID
NICTimer(
	IN ULONG Data
	);

VOID
WaitTimerHandler(
	IN ULONG Data
	);
//
// --------------------- CMDLINE.C definitions -------------------
//

NIC_STATUS
tc90x_ReadCommandLineChanges(
	IN PNIC_INFORMATION Adapter
	);

//
// --------------------- XCVR.C definitions -------------------
//

NIC_STATUS
tc90x_SetupMedia( 
	IN PDEVICE Device
	);

VOID
ProcessMediaOverrides(
	IN PNIC_INFORMATION Adapter, 
	IN USHORT OptionAvailable
	);


VOID
tc90x_TickMediaHandler(
	IN PNIC_INFORMATION Adapter
	);

VOID
CheckTPLinkState(
	IN PNIC_INFORMATION Adapter
	);

VOID
CheckFXLinkState(
	IN PNIC_INFORMATION Adapter
	);

NIC_STATUS
tc90x_SetupNewDuplex(
	IN PNIC_INFORMATION Adapter
	);

VOID
tc90x_SetupNewSpeed(
	IN PNIC_INFORMATION Adapter
	);


VOID
IndicateToOSLinkStateChange(
	IN PNIC_INFORMATION Adapter
	);

/**************************** MIIPHY.C *********************************/

BOOLEAN
FindMIIPhy( 
	IN PNIC_INFORMATION Adapter
	) ;

VOID
SendMIIPhyPreamble(    
	IN PNIC_INFORMATION Adapter
	) ;

VOID
WriteMIIPhy(   
	IN PNIC_INFORMATION Adapter,
	IN USHORT RegAddr,
	IN USHORT Output 
	);

BOOLEAN
ReadMIIPhy(    
	IN PNIC_INFORMATION Adapter,
	IN USHORT RegisterAddress,
	OUT PUSHORT pInput 
	) ;


BOOLEAN
MIIMediaOverride(
	IN PNIC_INFORMATION Adapter,
	IN USHORT PhyModes,
	OUT PUSHORT MiiType
	);

BOOLEAN
ProgramMII(   
	IN PNIC_INFORMATION Adapter,
  	IN CONNECTOR_TYPE NewConnector 
  	) ;

BOOLEAN
ConfigureMII(
	IN PNIC_INFORMATION Adapter,
    IN USHORT MediaOptions
  	);

BOOLEAN
CheckMIIConfiguration(    
	IN PNIC_INFORMATION Adapter,
    IN USHORT MediaOptions
  	);

VOID
CheckMIIAutoNegotiationStatus(    
	IN PNIC_INFORMATION Adapter
  	);


/*++

Routine:

    NIC_COMMAND_WAIT.

Description:

    This routine issues a command and spins for the completion.

Arguments:

    MiniportAdapterContext - Pointer to the adapter structure.
    Command - Command to be issued.

Return Value:

    NIC_STATUS_SUCCESS if hardware executes the command. 
    NIC_STATUS_FAILURE if hardware does not respond. 

--*/

__inline
static
NIC_STATUS
NIC_COMMAND_WAIT(
	IN PNIC_INFORMATION Adapter,
    	IN USHORT Command
    )
{
	PNIC_INFORMATION pAdapter = Adapter;
	ULONG count;
	USHORT value;

	NIC_WRITE_PORT_USHORT(
		pAdapter,
		INTSTATUS_COMMAND_REGISTER,
		Command);

	count = jiffies + HZ;
	do {
		value = NIC_READ_PORT_USHORT(
				pAdapter, 
				INTSTATUS_COMMAND_REGISTER);
		NIC_DELAY(10);
	} while ( (value & INTSTATUS_COMMAND_IN_PROGRESS) &&
		      (count > jiffies) );

	if (count < jiffies) {
		DBGPRINT_ERROR(("NIC_COMMAND_WAIT: timeout\n"));
		return NIC_STATUS_FAILURE;
    }
	return NIC_STATUS_SUCCESS;
}

/*++

Routine Name:

    tc90x_SetCountDownTimer.

Routine Description:

    This routine sets the countdown timer on the hardware.

Arguments:

    MiniportAdapterContext - Pointer to the adapter structure.

Return Value:

    None.

--*/

__inline
static
VOID
tc90x_SetCountDownTimer(
	IN PNIC_INFORMATION Adapter
    	)
{
    PNIC_INFORMATION pAdapter = Adapter;
    ULONG countDownValue;

    countDownValue = pAdapter->BytesInDPDQueue /4; 

    if (countDownValue < 10)
	countDownValue = 10;

    NIC_WRITE_PORT_USHORT(
	    pAdapter,
	    COUNTDOWN_REGISTER,
	    (USHORT)countDownValue
	    );

}


/*++

Routine Name:

	GetPacketFromPendingQueueAtHead

Routine Description:

	This routine gets a packet from the pending queue.

Arguments:

	pAdapter - Pointer to the adapter structure.

Return Value:

	
	SocketBuffer - if there is a socket buffer in the queue.
	NULL - if there is no socket buffer in the queue.

--*/

__inline
static
PSKB
GetPacketFromPendingQueueAtHead(
	IN PNIC_INFORMATION Adapter
	)
{
	PSKB socketBuffer;

	//
	// Get the socket buffer from the queue head.
	//
	socketBuffer = Adapter->PendingQueue.Head;

	if (socketBuffer) {

		//
		// Move the head.
		//
		Adapter->PendingQueue.Head = socketBuffer->next;
		Adapter->TxPendingQueueCount--;

    	}

	//
	// return the socket buffer pointer.
	//
	socketBuffer->next = NULL;

	return socketBuffer;

}

/*++

Routine Name:

	PutPacketInPendingQueueAtHead

Routine Description:

    	This routine puts the packet in the pending queue.

Arguments:

    	Adapter - Pointer to the adapter structure.
	SocketBuffer - Socket buffer

Return Value:

    None.

--*/

__inline
static
VOID
PutPacketInPendingQueueAtHead(
	IN PNIC_INFORMATION Adapter,
	IN PSKB SocketBuffer
    	)
{

	//
	// This packet points to head.
	//      
	SocketBuffer->next = Adapter->PendingQueue.Head;

    	if (NULL == Adapter->PendingQueue.Head) {

		//
		// Nothing in queue, tail points to this packet.
		//

		Adapter->PendingQueue.Tail = SocketBuffer;

    	}

    	//
    	// Point head to this packet.
    	//

    	Adapter->PendingQueue.Head = SocketBuffer;
    	Adapter->TxPendingQueueCount++;

}



/*++

Routine Name:

    PutPacketPendingQueueAtTail.

Routine Description:

    This routine puts the packet in the pending queue.

Arguments:

    Adapter - Pointer to the adapter structure.
    Packet - Packet pointer.

Return Value:

    None.

--*/

__inline
static
VOID
PutPacketInPendingQueueAtTail(
	IN PNIC_INFORMATION Adapter,
	IN PSKB SocketBuffer
    	)
{

	SocketBuffer->next = NULL;

    	if (NULL == Adapter->PendingQueue.Head) {

		//
		// Head is NULL, point head to this one.
		//

		Adapter->PendingQueue.Head = SocketBuffer ;

    	}
    	else {

		//
		// Head is valid, add this packet to the tail.
		//
		Adapter->PendingQueue.Tail->next = SocketBuffer;

    }

    //
    // Point tail to this one.
    //

    Adapter->PendingQueue.Tail = SocketBuffer;
    Adapter->TxPendingQueueCount++;

}


/*++

Routine Name:

	SetRxTcpIpChecksumFlagsInPacket.

Routine Description:

    	This routine sets the checksum information.

Arguments:

	Adapter - Pointer to the adapter structure.
	SocketBuffer - Pointer to the socket buffer.
	UpPacketStatus - UpPacketStatus given by hardware.

Return Value:

    None.

--*/

__inline
static
VOID
SetRxTcpIpChecksumOffloadFlagsInSocketBuffer(
	IN PNIC_INFORMATION Adapter,
	IN PSKB SocketBuffer,
	IN ULONG UpPacketStatus
    	)

{
    	PNIC_INFORMATION pAdapter = Adapter;
	//
	// Check if this is IP packet.
	//
	if (UpPacketStatus & UP_PACKET_STATUS_IP_CHECKSUM_CHECKED) {

		if (UpPacketStatus & UP_PACKET_STATUS_IP_CHECKSUM_ERROR) {
			DBGPRINT_ERROR((
				KERN_CRIT "IP checksum error\n"));
			SocketBuffer->ip_summed = CHECKSUM_NONE;
			return;
		}
		//
		// Check if packet is TCP packet. 
		//
		if (UpPacketStatus & UP_PACKET_STATUS_TCP_CHECKSUM_CHECKED) {
			//
			// Check if TCP checksum has been offloaded to us.
			//
			if (UpPacketStatus & 
			    UP_PACKET_STATUS_TCP_CHECKSUM_ERROR) {
				DBGPRINT_ERROR((
					KERN_CRIT "TCP Checksum error\n"));
				SocketBuffer->ip_summed = CHECKSUM_NONE;
				return;
			}
		}
	    	//
	    	// Check if this is UDP packet.
		//
	    	if (UpPacketStatus & UP_PACKET_STATUS_UDP_CHECKSUM_CHECKED) {
			if (TRUE == pAdapter->Hardware.UDPChecksumErrDone) {
		    		if (UpPacketStatus & 
				    UP_PACKET_STATUS_UDP_CHECKSUM_ERROR) {
					DBGPRINT_ERROR((
						KERN_CRIT "UDP Error"));
					SocketBuffer->ip_summed = CHECKSUM_NONE;
					return;
				}
				else {
					SocketBuffer->ip_summed = CHECKSUM_NONE;
					return;
				}
	    		}
		}
	}	
	SocketBuffer->ip_summed = CHECKSUM_UNNECESSARY;	
	return;
}