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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 /*
37 ** mapping structure passed to and from the config.rio program to
38 ** determine the current topology of the world
39 */
40 
41 #define MAX_MAP_ENTRY 17
42 #define	TOTAL_MAP_ENTRIES (MAX_MAP_ENTRY*RIO_SLOTS)
43 #define	MAX_NAME_LEN 32
44 
45 struct Map {
46 	unsigned int HostUniqueNum;	/* Supporting hosts unique number */
47 	unsigned int RtaUniqueNum;	/* Unique number */
48 	/*
49 	 ** The next two IDs must be swapped on big-endian architectures
50 	 ** when using a v2.04 /etc/rio/config with a v3.00 driver (when
51 	 ** upgrading for example).
52 	 */
53 	unsigned short ID;		/* ID used in the subnet */
54 	unsigned short ID2;		/* ID of 2nd block of 8 for 16 port */
55 	unsigned long Flags;		/* Booted, ID Given, Disconnected */
56 	unsigned long SysPort;		/* First tty mapped to this port */
57 	struct Top Topology[LINKS_PER_UNIT];	/* ID connected to each link */
58 	char Name[MAX_NAME_LEN];	/* Cute name by which RTA is known */
59 };
60 
61 /*
62 ** Flag values:
63 */
64 #define	RTA_BOOTED		0x00000001
65 #define RTA_NEWBOOT		0x00000010
66 #define	MSG_DONE		0x00000020
67 #define	RTA_INTERCONNECT	0x00000040
68 #define	RTA16_SECOND_SLOT	0x00000080
69 #define	BEEN_HERE		0x00000100
70 #define SLOT_TENTATIVE		0x40000000
71 #define SLOT_IN_USE		0x80000000
72 
73 /*
74 ** HostUniqueNum is the unique number from the host card that this RTA
75 ** is to be connected to.
76 ** RtaUniqueNum is the unique number of the RTA concerned. It will be ZERO
77 ** if the slot in the table is unused. If it is the same as the HostUniqueNum
78 ** then this slot represents a host card.
79 ** Flags contains current boot/route state info
80 ** SysPort is a value in the range 0-504, being the number of the first tty
81 ** on this RTA. Each RTA supports 8 ports. The SysPort value must be modulo 8.
82 ** SysPort 0-127 correspond to /dev/ttyr001 to /dev/ttyr128, with minor
83 ** numbers 0-127. SysPort 128-255 correspond to /dev/ttyr129 to /dev/ttyr256,
84 ** again with minor numbers 0-127, and so on for SysPorts 256-383 and 384-511
85 ** ID will be in the range 0-16 for a `known' RTA. ID will be 0xFFFF for an
86 ** unused slot/unknown ID etc.
87 ** The Topology array contains the ID of the unit connected to each of the
88 ** four links on this unit. The entry will be 0xFFFF if NOTHING is connected
89 ** to the link, or will be 0xFF00 if an UNKNOWN unit is connected to the link.
90 ** The Name field is a null-terminated string, upto 31 characters, containing
91 ** the 'cute' name that the sysadmin/users know the RTA by. It is permissible
92 ** for this string to contain any character in the range \040 to \176 inclusive.
93 ** In particular, ctrl sequences and DEL (0x7F, \177) are not allowed. The
94 ** special character '%' IS allowable, and needs no special action.
95 **
96 */
97 
98 #endif
99