/*
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    (C) Copyright 1999
        All rights reserved.

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  Portions of this software are:

    (C) Copyright 1995 TriplePoint, Inc. -- http://www.TriplePoint.com
        License to use this software is granted under the same terms 
        outlined in the Microsoft Windows Device Driver Development Kit.

    (C) Copyright 1992 Microsoft Corp. -- http://www.Microsoft.com
        License to use this software is granted under the terms outlined in
        the Microsoft Windows Device Driver Development Kit.

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@doc INTERNAL Port Port_h

@module Port.h |

    This module defines the interface to the <t PORT_OBJECT>.

@head3 Contents |
@index class,mfunc,func,msg,mdata,struct,enum | Port_h

@end
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*/

/* @doc EXTERNAL INTERNAL
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@topic 4.5 Port Overview |

    This section describes the interfaces defined in <f Port\.h>.

    The sample does not use this interface, but it is anticipated that it would
    be used to maintain information associated with each physical ISDN line.
    Assuming that each card may have multiple ISDN lines plugged into it.
    
*/

#ifndef _PORT_H
#define _PORT_H

#define PORT_OBJECT_TYPE        ((ULONG)'P')+\
                                ((ULONG)'O'<<8)+\
                                ((ULONG)'R'<<16)+\
                                ((ULONG)'T'<<24)

#define MAX_PORTS               10
// The most I've ever seen is 4 - If you have more than 10, the code will
// have to change to handle more than a single digit "PortX" parameter.

/* @doc INTERNAL Port Port_h PORT_OBJECT
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@struct PORT_OBJECT |

    This structure contains the data associated with an ISDN port.  Here,
    a port is defined as a single BRI, PRI, T-1, or E-1 physical interface.

*/

typedef struct PORT_OBJECT
{
    ULONG                       ObjectType;                 // @field
    // Four characters used to identify this type of object 'PORT'.

    ULONG                       ObjectID;                   // @field
    // Instance number used to identify a specific object instance.

    PCARD_OBJECT                pCard;                      // @field
    // Pointer to the <t CARD_OBJECT> owning this port.

    BOOLEAN                     IsOpen;                     // @field
    // Set TRUE if this BChannel is open, otherwise set FALSE.

    ULONG                       NumChannels;                // @field
    // Number of communications channels configured on this port.

    ULONG                       PortIndex;                  // @field
    // Port Index (0 .. MAX_PORTS-1).

    ULONG                       SwitchType;                 // @field
    // ISDN switch type.

    ULONG                       TODO;                       // @field
    // Add your data members here.

} PORT_OBJECT, *PPORT_OBJECT;

#define GET_ADAPTER_FROM_PORT(pPort)            (pPort->pCard->pAdapter)


/*
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    Function prototypes.

*/

NDIS_STATUS PortCreate(
    OUT PPORT_OBJECT *          ppPort,
    IN PCARD_OBJECT             pCard
    );

void PortInitialize(
    PPORT_OBJECT                pPort
    );

void PortDestroy(
    PPORT_OBJECT                pPort
    );

#endif // _PORT_H