drivers/char/rio/map.h

   1 /*
   2 ** -----------------------------------------------------------------------------
   3 **
   4 **  Perle Specialix driver for Linux
   5 **  Ported from existing RIO Driver for SCO sources.
   6  *
   7  *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
   8  *
   9  *      This program is free software; you can redistribute it and/or modify
  10  *      it under the terms of the GNU General Public License as published by
  11  *      the Free Software Foundation; either version 2 of the License, or
  12  *      (at your option) any later version.
  13  *
  14  *      This program is distributed in the hope that it will be useful,
  15  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *      GNU General Public License for more details.
  18  *
  19  *      You should have received a copy of the GNU General Public License
  20  *      along with this program; if not, write to the Free Software
  21  *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 **
  23 **      Module          : map.h
  24 **      SID             : 1.2
  25 **      Last Modified   : 11/6/98 11:34:11
  26 **      Retrieved       : 11/6/98 11:34:21
  27 **
  28 **  ident @(#)map.h     1.2
  29 **
  30 ** -----------------------------------------------------------------------------
  31 */
  32
  33 #ifndef __rio_map_h__
  34 #define __rio_map_h__
  35
  36 #ifdef SCCS_LABELS
  37 static char *_map_h_sccs_ = "@(#)map.h  1.2";
  38 #endif
  39
  40 /*
  41 ** mapping structure passed to and from the config.rio program to
  42 ** determine the current topology of the world
  43 */
  44
  45 #define MAX_MAP_ENTRY 17
  46 #define TOTAL_MAP_ENTRIES (MAX_MAP_ENTRY*RIO_SLOTS)
  47 #define MAX_NAME_LEN 32
  48
  49 struct Map
  50 {
  51         uint    HostUniqueNum;          /* Supporting hosts unique number */
  52         uint    RtaUniqueNum;           /* Unique number */
  53         /*
  54         ** The next two IDs must be swapped on big-endian architectures
  55         ** when using a v2.04 /etc/rio/config with a v3.00 driver (when
  56         ** upgrading for example).
  57         */
  58         ushort  ID;                     /* ID used in the subnet */
  59         ushort  ID2;                    /* ID of 2nd block of 8 for 16 port */
  60         ulong   Flags;                  /* Booted, ID Given, Disconnected */
  61         ulong   SysPort;                /* First tty mapped to this port */
  62         struct Top   Topology[LINKS_PER_UNIT];  /* ID connected to each link */
  63         char    Name[MAX_NAME_LEN];        /* Cute name by which RTA is known */
  64 };
  65
  66 /*
  67 ** Flag values:
  68 */
  69 #define RTA_BOOTED              0x00000001
  70 #define RTA_NEWBOOT             0x00000010
  71 #define MSG_DONE                0x00000020
  72 #define RTA_INTERCONNECT        0x00000040
  73 #define RTA16_SECOND_SLOT       0x00000080
  74 #define BEEN_HERE               0x00000100
  75 #define SLOT_TENTATIVE          0x40000000
  76 #define SLOT_IN_USE             0x80000000
  77
  78 /*
  79 ** HostUniqueNum is the unique number from the host card that this RTA
  80 ** is to be connected to.
  81 ** RtaUniqueNum is the unique number of the RTA concerned. It will be ZERO
  82 ** if the slot in the table is unused. If it is the same as the HostUniqueNum
  83 ** then this slot represents a host card.
  84 ** Flags contains current boot/route state info
  85 ** SysPort is a value in the range 0-504, being the number of the first tty
  86 ** on this RTA. Each RTA supports 8 ports. The SysPort value must be modulo 8.
  87 ** SysPort 0-127 correspond to /dev/ttyr001 to /dev/ttyr128, with minor
  88 ** numbers 0-127. SysPort 128-255 correspond to /dev/ttyr129 to /dev/ttyr256,
  89 ** again with minor numbers 0-127, and so on for SysPorts 256-383 and 384-511
  90 ** ID will be in the range 0-16 for a `known' RTA. ID will be 0xFFFF for an
  91 ** unused slot/unknown ID etc.
  92 ** The Topology array contains the ID of the unit connected to each of the
  93 ** four links on this unit. The entry will be 0xFFFF if NOTHING is connected
  94 ** to the link, or will be 0xFF00 if an UNKNOWN unit is connected to the link.
  95 ** The Name field is a null-terminated string, upto 31 characters, containing
  96 ** the 'cute' name that the sysadmin/users know the RTA by. It is permissible
  97 ** for this string to contain any character in the range \040 to \176 inclusive.
  98 ** In particular, ctrl sequences and DEL (0x7F, \177) are not allowed. The
  99 ** special character '%' IS allowable, and needs no special action.
 100 **
 101 */
 102
 103 #endif