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, up to 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