70 lines
2.6 KiB
C
70 lines
2.6 KiB
C
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/****************************************************************************
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******* *******
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******* R U P S T R U C T U R E
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******* *******
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****************************************************************************
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Author : Ian Nandhra
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Date :
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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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Version : 0.01
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Mods
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----------------------------------------------------------------------------
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Date By Description
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----------------------------------------------------------------------------
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***************************************************************************/
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#ifndef _rup_h
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#define _rup_h 1
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#define MAX_RUP ((short) 16)
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#define PKTS_PER_RUP ((short) 2) /* They are always used in pairs */
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/*************************************************
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* Define all the packet request stuff
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************************************************/
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#define TX_RUP_INACTIVE 0 /* Nothing to transmit */
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#define TX_PACKET_READY 1 /* Transmit packet ready */
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#define TX_LOCK_RUP 2 /* Transmit side locked */
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#define RX_RUP_INACTIVE 0 /* Nothing received */
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#define RX_PACKET_READY 1 /* Packet received */
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#define RUP_NO_OWNER 0xff /* RUP not owned by any process */
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struct RUP {
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u16 txpkt; /* Outgoing packet */
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u16 rxpkt; /* Incoming packet */
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u16 link; /* Which link to send down? */
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u8 rup_dest_unit[2]; /* Destination unit */
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u16 handshake; /* For handshaking */
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u16 timeout; /* Timeout */
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u16 status; /* Status */
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u16 txcontrol; /* Transmit control */
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u16 rxcontrol; /* Receive control */
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};
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#endif
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/*********** end of file ***********/
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