/* 
/* Module:	$ASNDEF
/*
/* Version:	'X-2'
/*
/************************************************************************
/**
/** Copyright © 1996 Digital Equipment Corporation.
/** All rights reserved.
/**
/** Redistribution and use in source and binary forms are permitted
/** provided that the above copyright notice and this paragraph are
/** duplicated in all such forms and that any documentation,
/** advertising materials, and other materials related to such
/** distribution and use acknowledge that the software was developed
/** by Digital Equipment Corporation.  The name of the
/** Corporation may not be used to endorse or promote products derived
/** from this software without specific prior written permission.
/** THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
/** IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
/** WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
/**
/************************************************************************
/*
/*++
/*
/* FACILITY:  OpenVMS Alpha ASNDRIVER
/*
/* ABSTRACT:
/*
/*        This file contains the SDL source for the ASN constants used by PPP
/* layer, and the management code.
/*
/* AUTHOR:  Forrest A. Kenney	CREATION DATE:  05-December-1995
/*
/* MODIFIED BY:
/*
/*      X-2     BWK002          Barry W. Kierstein      17-DEC-1996
/*              Replaced the standard Digital copyright with
/*              one compatible with the CMU copyright.
/*
/*	X-1	BWK001 		Barry W. Kierstein	17-December-1996
/*		Replaced the standard Digital copyright with
/*		one compatible with the CMU copyright.
/*--

module $ASNDEF;
/*+
/*
/* Asynch PPP Driver Recieve and Transmit buffer limits
/*
/*-

CONSTANT	MAXIMUM_MTU	equals	1500;
CONSTANT	MAXIMUM_MRU	equals	1500;
CONSTANT	MINIMUM_MTU	equals	4;
CONSTANT	MINIMUM_MRU	equals	4;
CONSTANT	PACKET_OVERHEAD	equals	16;
CONSTANT	READ_BUFFERS	equals	2;
CONSTANT	TERMINAL_PE_BIT	equals	12;
CONSTANT	TERMINAL_FE_BIT	equals	13;
CONSTANT	TERMINAL_OR_BIT	equals	14;



/*+
/*
/* Asynch PPP driver item codes 
/*
/* N.B.
/*	These definitions are in a specific order and must not be changed
/* without matching changes to ASNDRIVER.
/*
/*-

CONSTANT (ACCM_RCV		/* Set receive ACCM
	, ACCM_XMIT		/* Set xmit ACCM
	, BIND			/* Bind to terminal port
	, CONNECT_TYPE		/* Set connection type
	, DEVICE_CLOSED		/* Reserved for the future
	, DISABLE_RCV		/* Disable character reception
	, DISCONNECT		/* Force connection to be broken
	, ENABLE_RCV		/* Enable character reception
	, FCS_RCV		/* Set receive FCS
	, FCS_XMIT		/* Set xmit FCS
	, FLOW			/* Set flow conftol type
	, MRU			/* Set MRU
	, MTU			/* Set MTU
	, RESET_COUNTERS	/* Reset line counter(s)
        , READ_COUNTERS		/* Read the line counter(s)
	, MAX_ITEMS) equals 0 increment 1 prefix ASN tag $;


AGGREGATE ASN$CONNECT_TYPES STRUCTURE PREFIX ASN$;	/* Connection types
	PERMANENT bitfield mask;
	TRANSIENT bitfield mask;
END;


AGGREGATE ASN$FLOW_TYPES STRUCTURE PREFIX ASN$;	/* Types of flow control
	HW 	 bitfield mask;
	XON_XOFF bitfield mask;
END;


/*+
/*
/* Line counters 
/*
/* N.B.
/*	These definitions are in a specific order and must not be changed
/* without matching changes to ASNDRIVER code and the UCB layout.
/*
/*-

AGGREGATE ASN$COUNTERS STRUCTURE PREFIX ASN$;
	BAD_FCS_RCV 	bitfield mask;
	DATA_LOST	bitfield mask;
	DROPPED_CHARS	bitfield mask;
	FE		bitfield mask;
	LONG_PACKETS	bitfield mask;
	PACKETS_RCV	bitfield mask;
	PACKETS_XMIT	bitfield mask;
	RUNT_PACKETS	bitfield mask;
	TOTAL_CHARS	bitfield mask;
	ALL		bitfield mask;		/* Items must be added before this item
END;


end_module $ASNDEF;