diff options
Diffstat (limited to 'drivers/char/rio/pkt.h')
| -rw-r--r-- | drivers/char/rio/pkt.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/drivers/char/rio/pkt.h b/drivers/char/rio/pkt.h new file mode 100644 index 000000000..66bb2ff0f --- /dev/null +++ b/drivers/char/rio/pkt.h @@ -0,0 +1,120 @@ +/**************************************************************************** + ******* ******* + ******* 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 ***********/ + + |