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  * ACK bit. Last Packet received OK. Set by
  42  * rxpkt to indicate that the Packet has been
  43  * received OK and that the LTT must set the ACK
  44  * bit in the next outward bound Packet
  45  * and re-set by LTT's after xmit.
  46  *
  47  * Gets shoved into rx_status
  48  ************************************************/
  49 #define PHB_RX_LAST_PKT_ACKED    ((ushort) 0x080)
  50
  51 /*******************************************************
  52  * The Rx TOGGLE bit.
  53  * Stuffed into rx_status by RXPKT
  54  ******************************************************/
  55 #define PHB_RX_DATA_WNDW         ((ushort) 0x040)
  56
  57 /*******************************************************
  58  * The Rx TOGGLE bit. Matches the setting in PKT.H
  59  * Stuffed into rx_status
  60  ******************************************************/
  61 #define PHB_RX_TGL               ((ushort) 0x2000)
  62
  63
  64 /*************************************************
  65  * This bit is set by the LRT to indicate that
  66  * an ACK (packet) must be returned.
  67  *
  68  * Gets shoved into tx_status
  69  ************************************************/
  70 #define PHB_TX_SEND_PKT_ACK      ((ushort) 0x08)
  71
  72 /*************************************************
  73  * Set by LTT to indicate that an ACK is required
  74  *************************************************/
  75 #define PHB_TX_ACK_RQRD         ((ushort) 0x01)
  76
  77
  78 /*******************************************************
  79  * The Tx TOGGLE bit.
  80  * Stuffed into tx_status by RXPKT from the PKT WndW
  81  * field. Looked by the LTT when the NEXT Packet
  82  * is going to be sent.
  83  ******************************************************/
  84 #define PHB_TX_DATA_WNDW         ((ushort) 0x04)
  85
  86
  87 /*******************************************************
  88  * The Tx TOGGLE bit. Matches the setting in PKT.H
  89  * Stuffed into tx_status
  90  ******************************************************/
  91 #define PHB_TX_TGL               ((ushort) 0x02)
  92
  93 /*******************************************************
  94  * Request intr bit. Set when the queue has gone quiet
  95  * and the PHB has requested an interrupt.
  96  ******************************************************/
  97 #define PHB_TX_INTR             ((ushort) 0x100)
  98
  99 /*******************************************************
 100  * SET if the PHB cannot send any more data down the
 101  * Link
 102  ******************************************************/
 103 #define PHB_TX_HANDSHAKE         ((ushort) 0x010)
 104
 105
 106 #define RUP_SEND_WNDW            ((ushort) 0x08) ;
 107
 108 #endif
 109
 110 /*********** end of file ***********/