protsts.h
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上传日期:2013-02-24
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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 *******
- ******* *******
- ****************************************************************************
- Author : Ian Nandhra / Jeremy Rolls
- Date :
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- Version : 0.01
- Mods
- ----------------------------------------------------------------------------
- Date By Description
- ----------------------------------------------------------------------------
- ***************************************************************************/
- #ifndef _protsts_h
- #define _protsts_h 1
- #ifdef SCCS_LABELS
- #ifndef lint
- /* static char *_rio_protsts_h_sccs = "@(#)protsts.h 1.4"; */
- #endif
- #endif
- /*************************************************
- * ACK bit. Last Packet received OK. Set by
- * rxpkt to indicate that the Packet has been
- * received OK and that the LTT must set the ACK
- * bit in the next outward bound Packet
- * and re-set by LTT's after xmit.
- *
- * Gets shoved into rx_status
- ************************************************/
- #define PHB_RX_LAST_PKT_ACKED ((ushort) 0x080)
- /*******************************************************
- * The Rx TOGGLE bit.
- * Stuffed into rx_status by RXPKT
- ******************************************************/
- #define PHB_RX_DATA_WNDW ((ushort) 0x040)
- /*******************************************************
- * The Rx TOGGLE bit. Matches the setting in PKT.H
- * Stuffed into rx_status
- ******************************************************/
- #define PHB_RX_TGL ((ushort) 0x2000)
- /*************************************************
- * This bit is set by the LRT to indicate that
- * an ACK (packet) must be returned.
- *
- * Gets shoved into tx_status
- ************************************************/
- #define PHB_TX_SEND_PKT_ACK ((ushort) 0x08)
- /*************************************************
- * Set by LTT to indicate that an ACK is required
- *************************************************/
- #define PHB_TX_ACK_RQRD ((ushort) 0x01)
- /*******************************************************
- * The Tx TOGGLE bit.
- * Stuffed into tx_status by RXPKT from the PKT WndW
- * field. Looked by the LTT when the NEXT Packet
- * is going to be sent.
- ******************************************************/
- #define PHB_TX_DATA_WNDW ((ushort) 0x04)
- /*******************************************************
- * The Tx TOGGLE bit. Matches the setting in PKT.H
- * Stuffed into tx_status
- ******************************************************/
- #define PHB_TX_TGL ((ushort) 0x02)
- /*******************************************************
- * Request intr bit. Set when the queue has gone quiet
- * and the PHB has requested an interrupt.
- ******************************************************/
- #define PHB_TX_INTR ((ushort) 0x100)
- /*******************************************************
- * SET if the PHB cannot send any more data down the
- * Link
- ******************************************************/
- #define PHB_TX_HANDSHAKE ((ushort) 0x010)
- #define RUP_SEND_WNDW ((ushort) 0x08) ;
- #endif
- /*********** end of file ***********/