drivers/char/rio/protsts.h

   1 /****************************************************************************
   2  *******                                                              *******
   3  *******      P R O T O C O L    S T A T U S   S T R U C T U R E      *******
   4  *******                                                              *******
   5  ****************************************************************************
   6
   7  Author  : Ian Nandhra / Jeremy Rolls
   8  Date    :
   9
  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.
  26
  27  Version : 0.01
  28
  29
  30                             Mods
  31  ----------------------------------------------------------------------------
  32   Date     By                Description
  33  ----------------------------------------------------------------------------
  34
  35  ***************************************************************************/
  36
  37 #ifndef _protsts_h
  38 #define _protsts_h 1
  39
  40
  41 #ifdef SCCS_LABELS
  42 #ifndef lint
  43 /* static char *_rio_protsts_h_sccs = "@(#)protsts.h    1.4"; */
  44 #endif
  45 #endif
  46
  47 /*************************************************
  48  * ACK bit. Last Packet received OK. Set by
  49  * rxpkt to indicate that the Packet has been
  50  * received OK and that the LTT must set the ACK
  51  * bit in the next outward bound Packet
  52  * and re-set by LTT's after xmit.
  53  *
  54  * Gets shoved into rx_status
  55  ************************************************/
  56 #define PHB_RX_LAST_PKT_ACKED    ((ushort) 0x080)
  57
  58 /*******************************************************
  59  * The Rx TOGGLE bit.
  60  * Stuffed into rx_status by RXPKT
  61  ******************************************************/
  62 #define PHB_RX_DATA_WNDW         ((ushort) 0x040)
  63
  64 /*******************************************************
  65  * The Rx TOGGLE bit. Matches the setting in PKT.H
  66  * Stuffed into rx_status
  67  ******************************************************/
  68 #define PHB_RX_TGL               ((ushort) 0x2000)
  69
  70
  71 /*************************************************
  72  * This bit is set by the LRT to indicate that
  73  * an ACK (packet) must be returned.
  74  *
  75  * Gets shoved into tx_status
  76  ************************************************/
  77 #define PHB_TX_SEND_PKT_ACK      ((ushort) 0x08)
  78
  79 /*************************************************
  80  * Set by LTT to indicate that an ACK is required
  81  *************************************************/
  82 #define PHB_TX_ACK_RQRD         ((ushort) 0x01)
  83
  84
  85 /*******************************************************
  86  * The Tx TOGGLE bit.
  87  * Stuffed into tx_status by RXPKT from the PKT WndW
  88  * field. Looked by the LTT when the NEXT Packet
  89  * is going to be sent.
  90  ******************************************************/
  91 #define PHB_TX_DATA_WNDW         ((ushort) 0x04)
  92
  93
  94 /*******************************************************
  95  * The Tx TOGGLE bit. Matches the setting in PKT.H
  96  * Stuffed into tx_status
  97  ******************************************************/
  98 #define PHB_TX_TGL               ((ushort) 0x02)
  99
 100 /*******************************************************
 101  * Request intr bit. Set when the queue has gone quiet
 102  * and the PHB has requested an interrupt.
 103  ******************************************************/
 104 #define PHB_TX_INTR             ((ushort) 0x100)
 105
 106 /*******************************************************
 107  * SET if the PHB cannot send any more data down the
 108  * Link
 109  ******************************************************/
 110 #define PHB_TX_HANDSHAKE         ((ushort) 0x010)
 111
 112
 113 #define RUP_SEND_WNDW            ((ushort) 0x08) ;
 114
 115 #endif
 116
 117 /*********** end of file ***********/