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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [char/] [rio/] [rup.h] - Blame information for rev 1275

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1 1275 phoenix
/****************************************************************************
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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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#ifdef SCCS_LABELS
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#ifndef lint
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/* static char *_rio_rup_h_sccs = "@(#)rup.h    1.5"; */
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#endif
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#endif
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#if defined( HOST ) || defined( INKERNEL )
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#define MAX_RUP          ((short) 16) 
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#endif
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#ifdef RTA
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#define MAX_RUP          ((short) 1)
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#endif
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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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             PKT_ptr    txpkt;            /* Outgoing packet */
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             PKT_ptr    rxpkt;            /* Incoming packet */
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             WORD       link;             /* Which link to send down? */
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             BYTE       rup_dest_unit[2]; /* Destination unit */
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             WORD       handshake;        /* For handshaking */
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             WORD       timeout;          /* Timeout */
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             WORD       status;           /* Status */
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             WORD       txcontrol;        /* Transmit control */
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             WORD       rxcontrol;        /* Receive control */
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           };
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#endif
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/*********** end of file ***********/
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