120 строки
4.1 KiB
C
120 строки
4.1 KiB
C
/****************************************************************************
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******* *******
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******* P R O T O C O L S T A T U S S T R U C T U R E *******
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******* *******
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****************************************************************************
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Author : Ian Nandhra / Jeremy Rolls
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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 _protsts_h
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#define _protsts_h 1
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#ifdef SCCS_LABELS
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#ifndef lint
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/* static char *_rio_protsts_h_sccs = "@(#)protsts.h 1.4"; */
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#endif
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#endif
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/*************************************************
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* ACK bit. Last Packet received OK. Set by
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* rxpkt to indicate that the Packet has been
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* received OK and that the LTT must set the ACK
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* bit in the next outward bound Packet
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* and re-set by LTT's after xmit.
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*
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* Gets shoved into rx_status
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************************************************/
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#define PHB_RX_LAST_PKT_ACKED ((ushort) 0x080)
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/*******************************************************
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* The Rx TOGGLE bit.
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* Stuffed into rx_status by RXPKT
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******************************************************/
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#define PHB_RX_DATA_WNDW ((ushort) 0x040)
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/*******************************************************
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* The Rx TOGGLE bit. Matches the setting in PKT.H
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* Stuffed into rx_status
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******************************************************/
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#define PHB_RX_TGL ((ushort) 0x2000)
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/*************************************************
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* This bit is set by the LRT to indicate that
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* an ACK (packet) must be returned.
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*
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* Gets shoved into tx_status
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************************************************/
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#define PHB_TX_SEND_PKT_ACK ((ushort) 0x08)
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/*************************************************
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* Set by LTT to indicate that an ACK is required
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*************************************************/
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#define PHB_TX_ACK_RQRD ((ushort) 0x01)
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/*******************************************************
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* The Tx TOGGLE bit.
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* Stuffed into tx_status by RXPKT from the PKT WndW
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* field. Looked by the LTT when the NEXT Packet
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* is going to be sent.
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******************************************************/
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#define PHB_TX_DATA_WNDW ((ushort) 0x04)
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/*******************************************************
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* The Tx TOGGLE bit. Matches the setting in PKT.H
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* Stuffed into tx_status
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******************************************************/
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#define PHB_TX_TGL ((ushort) 0x02)
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/*******************************************************
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* Request intr bit. Set when the queue has gone quiet
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* and the PHB has requested an interrupt.
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******************************************************/
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#define PHB_TX_INTR ((ushort) 0x100)
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/*******************************************************
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* SET if the PHB cannot send any more data down the
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* Link
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******************************************************/
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#define PHB_TX_HANDSHAKE ((ushort) 0x010)
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#define RUP_SEND_WNDW ((ushort) 0x08) ;
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#endif
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/*********** end of file ***********/
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