map.h
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上传日期:2013-04-10
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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