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rup.h
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Linux-Unix program

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rup.h：Code Content
  1. /****************************************************************************
  2.  *******                                                              *******
  3.  *******               R U P   S T R U C T U R E
  4.  *******                                                              *******
  5.  ****************************************************************************
  7.  Author  : Ian Nandhra
  8.  Date    :
  10.  *
  11.  *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
  12.  *
  13.  *      This program is free software; you can redistribute it and/or modify
  14.  *      it under the terms of the GNU General Public License as published by
  15.  *      the Free Software Foundation; either version 2 of the License, or
  16.  *      (at your option) any later version.
  17.  *
  18.  *      This program is distributed in the hope that it will be useful,
  19.  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  20.  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21.  *      GNU General Public License for more details.
  22.  *
  23.  *      You should have received a copy of the GNU General Public License
  24.  *      along with this program; if not, write to the Free Software
  25.  *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27.  Version : 0.01
  30.                             Mods
  31.  ----------------------------------------------------------------------------
  32.   Date     By                Description
  33.  ----------------------------------------------------------------------------
  35.  ***************************************************************************/
  37. #ifndef _rup_h
  38. #define _rup_h 1
  40. #ifdef SCCS_LABELS
  41. #ifndef lint
  42. /* static char *_rio_rup_h_sccs = "@(#)rup.h 1.5"; */
  43. #endif
  44. #endif
  46. #if defined( HOST ) || defined( INKERNEL )
  47. #define MAX_RUP          ((short) 16) 
  48. #endif
  49. #ifdef RTA
  50. #define MAX_RUP          ((short) 1)
  51. #endif
  53. #define PKTS_PER_RUP     ((short) 2)     /* They are always used in pairs */
  55. /*************************************************
  56.  * Define all the  packet request stuff
  57.  ************************************************/
  58. #define TX_RUP_INACTIVE          0        /* Nothing to transmit */
  59. #define TX_PACKET_READY          1        /* Transmit packet ready */
  60. #define TX_LOCK_RUP              2        /* Transmit side locked */
  62. #define RX_RUP_INACTIVE          0        /* Nothing received */
  63. #define RX_PACKET_READY          1        /* Packet received */
  65. #define RUP_NO_OWNER             0xff     /* RUP not owned by any process */
  67. struct RUP {
  68.              PKT_ptr    txpkt;            /* Outgoing packet */
  69.              PKT_ptr    rxpkt;            /* Incoming packet */
  70.              WORD       link;             /* Which link to send down? */
  71.              BYTE       rup_dest_unit[2]; /* Destination unit */
  72.              WORD       handshake;        /* For handshaking */
  73.              WORD       timeout;          /* Timeout */
  74.              WORD       status;           /* Status */
  75.              WORD       txcontrol;        /* Transmit control */
  76.              WORD       rxcontrol;        /* Receive control */
  77.            };
  78.  
  79. #endif
  81. /*********** end of file ***********/