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// Copyright (c) 1999-2000 Microsoft Corporation.  All rights reserved.
#define ASYNC_NDIS_MAJOR_VERSION    4
#define ASYNC_NDIS_MINOR_VERSION    0



typedef struct _ASYNCMAC_ADAPTER_ *PASYNCMAC_ADAPTER;

//
//    The bigger this value is, the fewer the number of calls to ReadFile
//    to receive bytes.
//
//    This value may be overridden with the registry setting:
//        HKLM\Comm\AsyncMac1\Parms\ReceiveBufferSize
//
#define DEFAULT_RX_BUF_SIZE    2000

//
//    Default receive thread priority.
//
//    This value may be overridden with the registry setting:
//        HKLM\Comm\AsyncMac1\Parms\ReceiveThreadPriority256
//
//
#define DEFAULT_RX_THREAD_PRIORITY    130

typedef struct _ASYNCMAC_OPEN_LINE
{
#ifdef DEBUG
    DWORD                        dwDebugSigStart;
#endif
    struct _ASYNCMAC_OPEN_LINE    *pNext;
    DWORD                        dwRefCnt;
    PASYNCMAC_ADAPTER            pAdapter;
    DWORD                        dwDeviceID;
    HLINE                        hLine;        // hLine from TAPI
    HTAPI_LINE                    htLine;        // Handle from caller
    HCALL                        hCall;
    DWORD                        dwCallState;// The last callstate
    HTAPI_CALL                    htCall;
    long                        TapiReqID;
    NDIS_HANDLE                    hNdisLinkContext;
    HANDLE                        hPort;        // The serial port handle
    DWORD                        dwBaudRate;    // The link baud rate (in 100's b/s)
#define AOL_DEF_BAUD_RATE        288            // The initial default
    DWORD                        dwFlags;    // Some state flags
#define AOL_FLAGS_SENT_LINE_UP        0x00000001
#define AOL_FLAGS_ERROR_INDICATED    0x00000002
    HANDLE                        hRxThrd;    // Recv Thread handle
    NDIS_WAN_GET_LINK_INFO        WanLinkInfo;
#ifdef DEBUG
    DWORD                        dwDebugSigEnd;
#endif
} ASYNCMAC_OPEN_LINE, *PASYNCMAC_OPEN_LINE;
#define	AOL_SIG_START    'AOLS'
#define	AOL_SIG_END        'AOLE'

#ifdef DEBUG
#define CHK_AOL(ptr)    (ptr && (ptr->dwDebugSigStart == AOL_SIG_START) && (ptr->dwDebugSigEnd == AOL_SIG_END))
#else
#define CHK_AOL(ptr)    (1)
#endif

typedef struct _ASYNCMAC_ADAPTER_
{
#ifdef DEBUG
    DWORD                dwDebugSigStart;
#endif
    NDIS_HANDLE            hMiniportAdapter;
    HLINEAPP            hLineApp;
    DWORD                dwAPIVersion;
    DWORD                dwNumDevs;
    NDIS_MINIPORT_TIMER    ntLineInit;            // LineInitialize Timer
    NDIS_WAN_INFO        Info;
    DWORD                MaxSendFrameSize;
    DWORD                MaxRecvFrameSize;
    DWORD                dwRecvBufSize;        // Size of buffer passed to ReadFile
    DWORD                dwRecvThreadPrio;    // Priority of RxThread
    PASYNCMAC_OPEN_LINE    pHead;
    
#ifdef DEBUG
    DWORD                dwDebugSigEnd;
#endif
} ASYNCMAC_ADAPTER, *PASYNCMAC_ADAPTER;
#define	AA_SIG_START    'AA_S'
#define	AA_SIG_END        'AA_E'

#ifdef DEBUG
#define CHK_AA(ptr)    (ptr && (ptr->dwDebugSigStart == AA_SIG_START) && (ptr->dwDebugSigEnd == AA_SIG_END))
#else
#define CHK_AA(ptr)    (1)
#endif


#define	MAX_FRAME_SIZE    1500
#define FRAME_PADDING    256
#define DEFAULT_ACCM    0xFFFFFFFF


// ----------------------------------------------------------------
//
// Global Data
//
// ----------------------------------------------------------------
extern HINSTANCE        v_hInstance;
extern NDIS_HANDLE        v_hNdisMac;
extern NDIS_HANDLE        v_hNdisWrapper;
extern PDRIVER_OBJECT    v_AsyncDriverObject;
extern DWORD            v_GlobalAdapterCount;

// ----------------------------------------------------------------
//
// Debug Defines
//
// ----------------------------------------------------------------
#ifdef DEBUG
#define ZONE_INIT        DEBUGZONE(0)        // 0x0001
//#define ZONE_???        DEBUGZONE(1)        // 0x0002
//#define ZONE_???        DEBUGZONE(2)        // 0x0004
//#define ZONE_???        DEBUGZONE(3)        // 0x0008
//#define ZONE_???        DEBUGZONE(4)        // 0x0010
#define ZONE_SEND        DEBUGZONE(5)        // 0x0020
//#define ZONE_???        DEBUGZONE(6)        // 0x0040
//#define ZONE_???        DEBUGZONE(7)        // 0x0080
#define ZONE_TAPI        DEBUGZONE(8)        // 0x0100
#define ZONE_RECV       DEBUGZONE(9)        // 0x0200
#define ZONE_INTERFACE    DEBUGZONE(10)        // 0x0400
#define ZONE_MISC        DEBUGZONE(11)        // 0x0800
#define ZONE_ALLOC        DEBUGZONE(12)        // 0x1000
#define ZONE_FUNCTION    DEBUGZONE(13)        // 0x2000
#define ZONE_WARN        DEBUGZONE(14)        // 0x4000
#define ZONE_ERROR        DEBUGZONE(15)        // 0x8000
#endif


// ----------------------------------------------------------------
//
// Extern declarations
//
// ----------------------------------------------------------------
// ASYNCMAC.c

VOID MpHalt(NDIS_HANDLE MiniportAdapterContext);
NDIS_STATUS MpInit(PNDIS_STATUS    OpenErrorStatus, PUINT SelectedMediumIndex,
                   PNDIS_MEDIUM MediumArray,
                   UINT    MediumArraySize, NDIS_HANDLE MiniportAdapterHandle,
                   NDIS_HANDLE WrapperConfigurationContext);
NDIS_STATUS MpQueryInfo(NDIS_HANDLE MiniportAdapterContext, NDIS_OID Oid,
                        PVOID InformationBuffer, ULONG InformationBufferLength,
                        PULONG BytesWritten, PULONG BytesNeeded);
NDIS_STATUS MpSetInfo(NDIS_HANDLE MiniportAdapterContext,NDIS_OID Oid,
                      PVOID InformationBuffer, ULONG InformationBufferLength,
                      PULONG BytesRead, PULONG BytesNeeded);
NDIS_STATUS MpReconfigure(PNDIS_STATUS OpenErrorStatus,
                          NDIS_HANDLE MiniportAdapterContext,
                          NDIS_HANDLE WrapperConfigurationContext);
NDIS_STATUS MpReset(PBOOLEAN AddressingReset,
                    NDIS_HANDLE MiniportAdapterContext);
NDIS_STATUS MpSend(NDIS_HANDLE MacBindingHandle, NDIS_HANDLE NdisLinkHandle,
                   PNDIS_WAN_PACKET Packet);
PASYNCMAC_OPEN_LINE GetOpenLinePtr (void *context);
void ReleaseOpenLinePtr (PASYNCMAC_OPEN_LINE pOpenLine);


PVOID    AsyncMacAllocateMemory(IN UINT    nBytes);
void    AsyncMacFreeMemory(IN void *pMem, IN    UINT     nBytes);
BOOL    AsyncMacGuardRegionOk(IN void *pMem, IN    UINT    nBytes);



// tapifun.c
void CALLBACK    lineCallbackFunc(DWORD dwDevice, DWORD dwMsg,
                                 DWORD dwCallbackInstance, DWORD dwParam1,
                                 DWORD dwParam2, DWORD dwParam3);
VOID NDISAPI    DoLineInitialize(PVOID SystemSpecific1,
                                 PVOID FunctionContext,
                                 PVOID SystemSpecific2,
                                 PVOID SystemSpecific3);
void            SendLineDown(PASYNCMAC_OPEN_LINE pOpenLine);

// Recv.c
DWORD WINAPI    MacRxThread (LPVOID pOpenLine);