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/*
* garouter.h --
*
* Header file for the gate-array router.
*
* *********************************************************************
* * Copyright (C) 1985, 1990 Regents of the University of California. *
* * Permission to use, copy, modify, and distribute this *
* * software and its documentation for any purpose and without *
* * fee is hereby granted, provided that the above copyright *
* * notice appear in all copies. The University of California *
* * makes no representations about the suitability of this *
* * software for any purpose. It is provided "as is" without *
* * express or implied warranty. Export of this software outside *
* * of the United States of America may require an export license. *
* *********************************************************************
*
* rcsid $Header: /usr/cvsroot/magic-7.5/garouter/garouter.h,v 1.2 2006/07/28 15:57:57 tim Exp $
*/
#ifndef _GAROUTER_H
#define _GAROUTER_H
#include "grouter/grouter.h"
/*
* The following structure describes "simple stems" -- routes
* from a terminal to a grid point that are of a very simple
* style, involving a straight-across wire and at most one
* contact at either end.
*/
typedef struct
{
TileType sw_type; /* Type of wire */
Rect sw_long; /* Wire all the way to dest */
Rect sw_short; /* Wire only to pin contact */
Rect sw_pinStub; /* Wire from pin contact to pin */
bool sw_longOK; /* Space exists for long wire */
bool sw_shortOK; /* Space exists for short wire (implied
* if sw_longOK is TRUE).
*/
} SimpleWire;
typedef struct
{
/* Terminal */
TileType ss_termType;
Rect ss_termArea;
TileTypeBitMask ss_termMask; /* If ss_termType is a contact type,
* this mask contains both metal and
* poly; otherwise, it contains just
* ss_termType.
*/
/* Pin */
int ss_dir;
Point ss_pinPoint;
/* Information describing the wires to paint */
SimpleWire ss_metalWire; /* Metal wire */
SimpleWire ss_polyWire; /* Poly wire */
/* Contacts */
Rect ss_cTerm; /* Contact over terminal */
bool ss_cTermOK; /* Contact over terminal is OK */
Rect ss_cPin; /* Contact near pin */
bool ss_cPinOK; /* Contact near pin is OK */
} SimpleStem;
/* List of all active channels */
extern GCRChannel *gaChannelList;
/* Def used to hold channel plane */
extern CellDef *gaChannelDef;
/* Used during stem generation */
extern int gaMinAbove;
extern int gaMaxAbove, gaMaxBelow;
/* Debugging information */
extern bool gaInitialized; /* TRUE if registered with debug module */
extern ClientData gaDebugID; /* Our identity with the debugging module */
#include "gaDebug.h" /* Can add flags without total recompile */
/* Internal procedures */
extern GCRChannel *gaStemContainingChannel();
extern GCRPin *gaStemCheckPin();
extern int gaAlwaysOne();
extern bool gaMazeRoute();
/* Exported procedures */
extern int GARoute();
extern void GAChannelInitOnce();
extern void GAClearChannels();
extern bool GADefineChannel();
extern bool GAMazeInitParms();
/* Exported variables */
extern bool GAStemWarn;
#endif /* _GAROUTER_H */
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