350 lines
7.7 KiB
C
350 lines
7.7 KiB
C
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/*
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************************************************************************
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*
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* NSC.h
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*
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*
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* Portions Copyright (C) 1996-1998 National Semiconductor Corp.
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* All rights reserved.
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* Copyright (C) 1996-1998 Microsoft Corporation. All Rights Reserved.
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*
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*
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*
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*************************************************************************
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*/
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#ifndef NSC_H
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#define NSC_H
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#include <ndis.h>
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#include "dmautil.h"
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#include <ntddndis.h> // defines OID's
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#include "settings.h"
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#include "comm.h"
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#include "sync.h"
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#include "newdong.h"
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#define NSC_MAJOR_VERSION 1
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#define NSC_MINOR_VERSION 11
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#define NSC_LETTER_VERSION 's'
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#define NDIS_MAJOR_VERSION 5
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#define NDIS_MINOR_VERSION 0
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extern ULONG DebugSpeed;
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//
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// Registry Keywords.
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//
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#define CARDTYPE NDIS_STRING_CONST("BoardType")
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#define DONGLE_A_TYPE NDIS_STRING_CONST("Dongle_A_Type")
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#define DONGLE_B_TYPE NDIS_STRING_CONST("Dongle_B_Type")
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#define MAXCONNECTRATE NDIS_STRING_CONST("MaxConnectRate")
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#define LCR_BSR_OFFSET (3)
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#define BKSE (1 << 7)
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#define FRM_ST (5)
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#define RFRL_L (6)
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#define RFRL_H (7)
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#define ST_FIFO_LOST_FR (1 << 6)
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#define ST_FIFO_VALID (1 << 7)
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#define LSR_OE (1 << 1)
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#define LSR_FR_END (1 << 7)
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//
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// Valid value ranges for the DMA Channels.
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//
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#define VALID_DMACHANNELS {0xFF,0x0,0x1,0x3}
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#define FIR_INT_MASK 0x14
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//#define FIR_INT_MASK 0x50
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enum NSC_EXT_INTS {
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RXHDL_EV = (1 << 0),
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TXLDL_EV = (1 << 1),
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LS_EV = (1 << 2),
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MS_EV = (1 << 3),
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DMA_EV = (1 << 4),
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TXEMP_EV = (1 << 5),
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SFIF_EV = (1 << 6),
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TMR_EV = (1 << 7)
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};
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typedef struct DebugCounters {
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ULONG TxPacketsStarted;
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ULONG TxPacketsCompleted;
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ULONG ReceivedPackets;
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ULONG WindowSize;
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ULONG StatusFIFOOverflows;
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ULONG TxUnderruns;
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ULONG ReceiveFIFOOverflows;
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ULONG MissedPackets;
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ULONG ReceiveCRCErrors;
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ULONG ReturnPacketHandlerCalled;
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ULONG RxWindow;
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ULONG RxWindowMax;
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ULONG RxDPC_Window;
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ULONG RxDPC_WindowMax;
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ULONG RxDPC_G1_Count;
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} DebugCounters;
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/*
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* A receive buffer is either FREE (not holding anything) FULL
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* (holding undelivered data) or PENDING (holding data delivered
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* asynchronously)
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*/
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typedef enum rcvbufferStates {
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STATE_FREE,
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STATE_FULL,
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STATE_PENDING
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} rcvBufferState;
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typedef struct {
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LIST_ENTRY listEntry;
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rcvBufferState state;
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PNDIS_PACKET packet;
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UINT dataLen;
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PUCHAR dataBuf;
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BOOLEAN isDmaBuf;
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} rcvBuffer;
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typedef struct {
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UINT Length; // Length of buffer.
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UCHAR NotUsed; // Spare byte, not filled in.
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UCHAR StsCmd; // For the sts cmd info.
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ULONG physAddress; // Physical address of buffer
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} DescTableEntry;
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typedef struct IrDevice {
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/*
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* This is the handle that the NDIS wrapper associates with a
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* connection. The handle that the miniport driver associates with
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* the connection is just an index into the devStates array).
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*/
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NDIS_HANDLE ndisAdapterHandle;
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int CardType;
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/*
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* Current speed setting, in bits/sec.
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* (Note: this is updated when we ACTUALLY change the speed,
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* not when we get the request to change speed via
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* MiniportSetInformation).
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*/
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UINT currentSpeed;
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// Current dongle setting, 0 for dongle A, 1 for dongle B
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// and so on.
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//
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UCHAR DonglesSupported;
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UCHAR currentDongle;
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UCHAR DongleTypes[2];
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UIR IrDongleResource;
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DongleParam Dingle[2];
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UINT AllowedSpeedMask;
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/*
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* This structure holds information about our ISR.
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* It is used to synchronize with the ISR.
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*/
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BOOLEAN InterruptRegistered;
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NDIS_MINIPORT_INTERRUPT interruptObj;
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/*
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* Circular queue of pending receive buffers
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*/
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#define NUM_RCV_BUFS 16
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// #define NEXT_RCV_BUF_INDEX(i) (((i)==NO_BUF_INDEX) ? 0 : (((i)+1)%NUM_RCV_BUFS))
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LIST_ENTRY rcvBufBuf; // Protected by SyncWithInterrupt
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LIST_ENTRY rcvBufFree; // Protected by SyncWithInterrupt
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LIST_ENTRY rcvBufFull; // Protected by SyncWithInterrupt
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LIST_ENTRY rcvBufPend; // Protected by QueueLock
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NDIS_SPIN_LOCK QueueLock;
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LIST_ENTRY SendQueue;
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PNDIS_PACKET CurrentPacket;
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BOOLEAN FirTransmitPending;
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BOOLEAN FirReceiveDmaActive;
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BOOLEAN TransmitIsIdle;
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BOOLEAN Halting;
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BOOLEAN TestingInterrupt;
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volatile BOOLEAN GotTestInterrupt;
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LONG PacketsSentToProtocol;
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NDIS_EVENT ReceiveStopped;
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NDIS_EVENT SendStoppedOnHalt;
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/*
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* Handle to NDIS packet pool, from which packets are
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* allocated.
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*/
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NDIS_HANDLE packetPoolHandle;
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NDIS_HANDLE bufferPoolHandle;
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/*
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* mediaBusy is set TRUE any time that this miniport driver moves a
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* data frame. It can be reset by the protocol via
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* MiniportSetInformation and later checked via
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* MiniportQueryInformation to detect interleaving activity.
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*/
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LONG RxInterrupts;
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BOOLEAN mediaBusy;
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BOOLEAN haveIndicatedMediaBusy;
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/*
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* nowReceiving is set while we are receiving a frame.
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* It (not mediaBusy) is returned to the protocol when the protocol
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* queries OID_MEDIA_BUSY
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*/
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BOOLEAN nowReceiving;
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//
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// Interrupt Mask.
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//
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UCHAR FirIntMask;
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UCHAR LineStatus;
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UCHAR InterruptMask;
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UCHAR InterruptStatus;
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UCHAR AuxStatus;
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#if DBG
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BOOLEAN WaitingForTurnAroundTimer;
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#endif
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/*
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* Current link speed information.
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*/
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const baudRateInfo *linkSpeedInfo;
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/*
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* When speed is changed, we have to clear the send queue before
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* setting the new speed on the hardware.
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* These vars let us remember to do it.
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*/
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PNDIS_PACKET lastPacketAtOldSpeed;
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BOOLEAN setSpeedAfterCurrentSendPacket;
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/*
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* Information on the COM port and send/receive FSM's.
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*/
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comPortInfo portInfo;
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UINT hardwareStatus;
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/*
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* UIR Module ID.
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*/
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int UIR_ModuleId;
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/*
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* Maintain statistical debug info.
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*/
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UINT packetsRcvd;
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UINT packetsDropped;
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UINT packetsSent;
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UINT interruptCount;
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/*
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* DMA handles
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*/
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NDIS_HANDLE DmaHandle;
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NDIS_HANDLE dmaBufferPoolHandle;
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PNDIS_BUFFER xmitDmaBuffer, rcvDmaBuffer;
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ULONG_PTR rcvDmaOffset;
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ULONG_PTR rcvDmaSize;
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ULONG_PTR rcvPktOffset;
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ULONG_PTR LastReadDMACount;
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NDIS_TIMER TurnaroundTimer;
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ULONG HangChk;
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BOOLEAN DiscardNextPacketSet;
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DMA_UTIL DmaUtil;
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} IrDevice;
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/*
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* We use a pointer to the IrDevice structure as the miniport's device context.
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*/
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#define CONTEXT_TO_DEV(__deviceContext) ((IrDevice *)(__deviceContext))
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#define DEV_TO_CONTEXT(__irdev) ((NDIS_HANDLE)(__irdev))
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#define ON TRUE
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#define OFF FALSE
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#include "externs.h"
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VOID
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SyncWriteBankReg(
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PNDIS_MINIPORT_INTERRUPT InterruptObject,
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PUCHAR PortBase,
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UINT BankNumber,
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UINT RegisterIndex,
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UCHAR Value
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);
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UCHAR
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SyncReadBankReg(
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PNDIS_MINIPORT_INTERRUPT InterruptObject,
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PUCHAR PortBase,
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UINT BankNumber,
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UINT RegisterIndex
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);
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VOID
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SyncSetInterruptMask(
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IrDevice *thisDev,
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BOOLEAN enable
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);
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BOOLEAN
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SyncGetFifoStatus(
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PNDIS_MINIPORT_INTERRUPT InterruptObject,
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PUCHAR PortBase,
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PUCHAR Status,
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PULONG Size
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);
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LONG
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FASTCALL
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InterlockedExchange(
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PLONG Dest,
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LONG NewValue
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);
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VOID
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ProcessSendQueue(
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IrDevice *thisDev
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);
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#endif NSC_H
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