mirror of https://gitee.com/openkylin/linux.git
103 lines
3.9 KiB
C
103 lines
3.9 KiB
C
/*
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** -----------------------------------------------------------------------------
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**
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** Perle Specialix driver for Linux
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** Ported from existing RIO Driver for SCO sources.
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*
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* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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**
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** Module : map.h
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** SID : 1.2
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** Last Modified : 11/6/98 11:34:11
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** Retrieved : 11/6/98 11:34:21
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**
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** ident @(#)map.h 1.2
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**
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** -----------------------------------------------------------------------------
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*/
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#ifndef __rio_map_h__
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#define __rio_map_h__
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#ifdef SCCS_LABELS
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static char *_map_h_sccs_ = "@(#)map.h 1.2";
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#endif
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/*
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** mapping structure passed to and from the config.rio program to
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** determine the current topology of the world
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*/
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#define MAX_MAP_ENTRY 17
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#define TOTAL_MAP_ENTRIES (MAX_MAP_ENTRY*RIO_SLOTS)
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#define MAX_NAME_LEN 32
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struct Map {
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unsigned int HostUniqueNum; /* Supporting hosts unique number */
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unsigned int RtaUniqueNum; /* Unique number */
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/*
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** The next two IDs must be swapped on big-endian architectures
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** when using a v2.04 /etc/rio/config with a v3.00 driver (when
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** upgrading for example).
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*/
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unsigned short ID; /* ID used in the subnet */
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unsigned short ID2; /* ID of 2nd block of 8 for 16 port */
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unsigned long Flags; /* Booted, ID Given, Disconnected */
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unsigned long SysPort; /* First tty mapped to this port */
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struct Top Topology[LINKS_PER_UNIT]; /* ID connected to each link */
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char Name[MAX_NAME_LEN]; /* Cute name by which RTA is known */
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};
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/*
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** Flag values:
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*/
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#define RTA_BOOTED 0x00000001
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#define RTA_NEWBOOT 0x00000010
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#define MSG_DONE 0x00000020
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#define RTA_INTERCONNECT 0x00000040
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#define RTA16_SECOND_SLOT 0x00000080
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#define BEEN_HERE 0x00000100
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#define SLOT_TENTATIVE 0x40000000
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#define SLOT_IN_USE 0x80000000
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/*
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** HostUniqueNum is the unique number from the host card that this RTA
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** is to be connected to.
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** RtaUniqueNum is the unique number of the RTA concerned. It will be ZERO
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** if the slot in the table is unused. If it is the same as the HostUniqueNum
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** then this slot represents a host card.
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** Flags contains current boot/route state info
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** SysPort is a value in the range 0-504, being the number of the first tty
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** on this RTA. Each RTA supports 8 ports. The SysPort value must be modulo 8.
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** SysPort 0-127 correspond to /dev/ttyr001 to /dev/ttyr128, with minor
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** numbers 0-127. SysPort 128-255 correspond to /dev/ttyr129 to /dev/ttyr256,
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** again with minor numbers 0-127, and so on for SysPorts 256-383 and 384-511
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** ID will be in the range 0-16 for a `known' RTA. ID will be 0xFFFF for an
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** unused slot/unknown ID etc.
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** The Topology array contains the ID of the unit connected to each of the
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** four links on this unit. The entry will be 0xFFFF if NOTHING is connected
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** to the link, or will be 0xFF00 if an UNKNOWN unit is connected to the link.
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** The Name field is a null-terminated string, upto 31 characters, containing
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** the 'cute' name that the sysadmin/users know the RTA by. It is permissible
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** for this string to contain any character in the range \040 to \176 inclusive.
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** In particular, ctrl sequences and DEL (0x7F, \177) are not allowed. The
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** special character '%' IS allowable, and needs no special action.
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**
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*/
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#endif
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