121 lines
4 KiB
C
121 lines
4 KiB
C
|
/****************************************************************************
|
||
|
|
******* *******
|
||
|
|
******* P A C K E T H E A D E R F I L 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 _pkt_h
|
||
|
|
#define _pkt_h 1
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef SCCS_LABELS
|
||
|
|
#ifndef lint
|
||
|
|
/* static char *_rio_pkt_h_sccs = "@(#)pkt.h 1.8"; */
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define MAX_TTL 0xf
|
||
|
|
#define PKT_CMD_BIT ((ushort) 0x080)
|
||
|
|
#define PKT_CMD_DATA ((ushort) 0x080)
|
||
|
|
|
||
|
|
#define PKT_ACK ((ushort) 0x040)
|
||
|
|
|
||
|
|
#define PKT_TGL ((ushort) 0x020)
|
||
|
|
|
||
|
|
#define PKT_LEN_MASK ((ushort) 0x07f)
|
||
|
|
|
||
|
|
#define DATA_WNDW ((ushort) 0x10)
|
||
|
|
#define PKT_TTL_MASK ((ushort) 0x0f)
|
||
|
|
|
||
|
|
#define PKT_MAX_DATA_LEN 72
|
||
|
|
|
||
|
|
#define PKT_LENGTH sizeof(struct PKT)
|
||
|
|
#define SYNC_PKT_LENGTH (PKT_LENGTH + 4)
|
||
|
|
|
||
|
|
#define CONTROL_PKT_LEN_MASK PKT_LEN_MASK
|
||
|
|
#define CONTROL_PKT_CMD_BIT PKT_CMD_BIT
|
||
|
|
#define CONTROL_PKT_ACK (PKT_ACK << 8)
|
||
|
|
#define CONTROL_PKT_TGL (PKT_TGL << 8)
|
||
|
|
#define CONTROL_PKT_TTL_MASK (PKT_TTL_MASK << 8)
|
||
|
|
#define CONTROL_DATA_WNDW (DATA_WNDW << 8)
|
||
|
|
|
||
|
|
struct PKT {
|
||
|
|
#ifdef INKERNEL
|
||
|
|
BYTE dest_unit ; /* Destination Unit Id */
|
||
|
|
BYTE dest_port ; /* Destination POrt */
|
||
|
|
BYTE src_unit ; /* Source Unit Id */
|
||
|
|
BYTE src_port ; /* Source POrt */
|
||
|
|
#else
|
||
|
|
union
|
||
|
|
{
|
||
|
|
ushort destination; /* Complete destination */
|
||
|
|
struct
|
||
|
|
{
|
||
|
|
unsigned char unit; /* Destination unit */
|
||
|
|
unsigned char port; /* Destination port */
|
||
|
|
} s1;
|
||
|
|
} u1;
|
||
|
|
union
|
||
|
|
{
|
||
|
|
ushort source; /* Complete source */
|
||
|
|
struct
|
||
|
|
{
|
||
|
|
unsigned char unit; /* Source unit */
|
||
|
|
unsigned char port; /* Source port */
|
||
|
|
} s2;
|
||
|
|
} u2;
|
||
|
|
#endif
|
||
|
|
#ifdef INKERNEL
|
||
|
|
BYTE len ;
|
||
|
|
BYTE control;
|
||
|
|
#else
|
||
|
|
union
|
||
|
|
{
|
||
|
|
ushort control;
|
||
|
|
struct
|
||
|
|
{
|
||
|
|
unsigned char len;
|
||
|
|
unsigned char control;
|
||
|
|
} s3;
|
||
|
|
} u3;
|
||
|
|
#endif
|
||
|
|
BYTE data[PKT_MAX_DATA_LEN] ;
|
||
|
|
/* Actual data :-) */
|
||
|
|
WORD csum ; /* C-SUM */
|
||
|
|
} ;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*********** end of file ***********/
|
||
|
|
|
||
|
|
|