tjh.dev
Linux kernel mirror (for testing)
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linux
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
37static 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
49struct Map {
50 unsigned int HostUniqueNum; /* Supporting hosts unique number */
51 unsigned int RtaUniqueNum; /* Unique number */
52 /*
53 ** The next two IDs must be swapped on big-endian architectures
54 ** when using a v2.04 /etc/rio/config with a v3.00 driver (when
55 ** upgrading for example).
56 */
57 unsigned short ID; /* ID used in the subnet */
58 unsigned short ID2; /* ID of 2nd block of 8 for 16 port */
59 unsigned long Flags; /* Booted, ID Given, Disconnected */
60 unsigned long SysPort; /* First tty mapped to this port */
61 struct Top Topology[LINKS_PER_UNIT]; /* ID connected to each link */
62 char Name[MAX_NAME_LEN]; /* Cute name by which RTA is known */
63};
64
65/*
66** Flag values:
67*/
68#define RTA_BOOTED 0x00000001
69#define RTA_NEWBOOT 0x00000010
70#define MSG_DONE 0x00000020
71#define RTA_INTERCONNECT 0x00000040
72#define RTA16_SECOND_SLOT 0x00000080
73#define BEEN_HERE 0x00000100
74#define SLOT_TENTATIVE 0x40000000
75#define SLOT_IN_USE 0x80000000
76
77/*
78** HostUniqueNum is the unique number from the host card that this RTA
79** is to be connected to.
80** RtaUniqueNum is the unique number of the RTA concerned. It will be ZERO
81** if the slot in the table is unused. If it is the same as the HostUniqueNum
82** then this slot represents a host card.
83** Flags contains current boot/route state info
84** SysPort is a value in the range 0-504, being the number of the first tty
85** on this RTA. Each RTA supports 8 ports. The SysPort value must be modulo 8.
86** SysPort 0-127 correspond to /dev/ttyr001 to /dev/ttyr128, with minor
87** numbers 0-127. SysPort 128-255 correspond to /dev/ttyr129 to /dev/ttyr256,
88** again with minor numbers 0-127, and so on for SysPorts 256-383 and 384-511
89** ID will be in the range 0-16 for a `known' RTA. ID will be 0xFFFF for an
90** unused slot/unknown ID etc.
91** The Topology array contains the ID of the unit connected to each of the
92** four links on this unit. The entry will be 0xFFFF if NOTHING is connected
93** to the link, or will be 0xFF00 if an UNKNOWN unit is connected to the link.
94** The Name field is a null-terminated string, upto 31 characters, containing
95** the 'cute' name that the sysadmin/users know the RTA by. It is permissible
96** for this string to contain any character in the range \040 to \176 inclusive.
97** In particular, ctrl sequences and DEL (0x7F, \177) are not allowed. The
98** special character '%' IS allowable, and needs no special action.
99**
100*/
101
102#endif