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/*

** -----------------------------------------------------------------------------

**

**  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__

#ifdef SCCS_LABELS

static char *_map_h_sccs_ = "@(#)map.h  1.2";

#endif

/*

** 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

{

        uint    HostUniqueNum;          /* Supporting hosts unique number */

        uint    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).

        */

        ushort  ID;                     /* ID used in the subnet */

        ushort  ID2;                    /* ID of 2nd block of 8 for 16 port */

        ulong   Flags;                  /* Booted, ID Given, Disconnected */

        ulong   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