text: /*
  ** -----------------------------------------------------------------------------
  **
  **  Perle Specialix driver for Linux
  **  Ported from existing RIO Driver for SCO sources.
   *
   *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
   *
   *      This program is free software; you can redistribute it and/or modify
   *      it under the terms of the GNU General Public License as published by
   *      the Free Software Foundation; either version 2 of the License, or
   *      (at your option) any later version.
   *
   *      This program is distributed in the hope that it will be useful,
   *      but WITHOUT ANY WARRANTY; without even the implied warranty of
   *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *      GNU General Public License for more details.
   *
   *      You should have received a copy of the GNU General Public License
   *      along with this program; if not, write to the Free Software
   *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  **
  **	Module		: map.h
  **	SID		: 1.2
  **	Last Modified	: 11/6/98 11:34:11
  **	Retrieved	: 11/6/98 11:34:21
  **
  **  ident @(#)map.h	1.2
  **
  ** -----------------------------------------------------------------------------
  */
  
  #ifndef __rio_map_h__
  #define __rio_map_h__
  
  /*
  ** mapping structure passed to and from the config.rio program to
  ** determine the current topology of the world
  */
  
  #define MAX_MAP_ENTRY 17
  #define	TOTAL_MAP_ENTRIES (MAX_MAP_ENTRY*RIO_SLOTS)
  #define	MAX_NAME_LEN 32
  
  struct Map {
  	unsigned int HostUniqueNum;	/* Supporting hosts unique number */
  	unsigned int RtaUniqueNum;	/* Unique number */
  	/*
  	 ** The next two IDs must be swapped on big-endian architectures
  	 ** when using a v2.04 /etc/rio/config with a v3.00 driver (when
  	 ** upgrading for example).
  	 */
  	unsigned short ID;		/* ID used in the subnet */
  	unsigned short ID2;		/* ID of 2nd block of 8 for 16 port */
  	unsigned long Flags;		/* Booted, ID Given, Disconnected */
  	unsigned long SysPort;		/* First tty mapped to this port */
  	struct Top Topology[LINKS_PER_UNIT];	/* ID connected to each link */
  	char Name[MAX_NAME_LEN];	/* Cute name by which RTA is known */
  };
  
  /*
  ** Flag values:
  */
  #define	RTA_BOOTED		0x00000001
  #define RTA_NEWBOOT		0x00000010
  #define	MSG_DONE		0x00000020
  #define	RTA_INTERCONNECT	0x00000040
  #define	RTA16_SECOND_SLOT	0x00000080
  #define	BEEN_HERE		0x00000100
  #define SLOT_TENTATIVE		0x40000000
  #define SLOT_IN_USE		0x80000000
  
  /*
  ** HostUniqueNum is the unique number from the host card that this RTA
  ** is to be connected to.
  ** RtaUniqueNum is the unique number of the RTA concerned. It will be ZERO
  ** if the slot in the table is unused. If it is the same as the HostUniqueNum
  ** then this slot represents a host card.
  ** Flags contains current boot/route state info
  ** SysPort is a value in the range 0-504, being the number of the first tty
  ** on this RTA. Each RTA supports 8 ports. The SysPort value must be modulo 8.
  ** SysPort 0-127 correspond to /dev/ttyr001 to /dev/ttyr128, with minor
  ** numbers 0-127. SysPort 128-255 correspond to /dev/ttyr129 to /dev/ttyr256,
  ** again with minor numbers 0-127, and so on for SysPorts 256-383 and 384-511
  ** ID will be in the range 0-16 for a `known' RTA. ID will be 0xFFFF for an
  ** unused slot/unknown ID etc.
  ** The Topology array contains the ID of the unit connected to each of the
  ** four links on this unit. The entry will be 0xFFFF if NOTHING is connected
  ** to the link, or will be 0xFF00 if an UNKNOWN unit is connected to the link.
  ** The Name field is a null-terminated string, upto 31 characters, containing
  ** the 'cute' name that the sysadmin/users know the RTA by. It is permissible
  ** for this string to contain any character in the range \040 to \176 inclusive.
  ** In particular, ctrl sequences and DEL (0x7F, \177) are not allowed. The
  ** special character '%' IS allowable, and needs no special action.
  **
  */
  
  #endif
  