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1da177e4 LT |
1 | /**************************************************************************** |
2 | ******* ******* | |
3 | ******* R U P S T R U C T U R E | |
4 | ******* ******* | |
5 | **************************************************************************** | |
6 | ||
7 | Author : Ian Nandhra | |
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 _rup_h | |
38 | #define _rup_h 1 | |
39 | ||
40 | #ifdef SCCS_LABELS | |
41 | #ifndef lint | |
42 | /* static char *_rio_rup_h_sccs = "@(#)rup.h 1.5"; */ | |
43 | #endif | |
44 | #endif | |
45 | ||
46 | #if defined( HOST ) || defined( INKERNEL ) | |
47 | #define MAX_RUP ((short) 16) | |
48 | #endif | |
49 | #ifdef RTA | |
50 | #define MAX_RUP ((short) 1) | |
51 | #endif | |
52 | ||
53 | #define PKTS_PER_RUP ((short) 2) /* They are always used in pairs */ | |
54 | ||
55 | /************************************************* | |
56 | * Define all the packet request stuff | |
57 | ************************************************/ | |
58 | #define TX_RUP_INACTIVE 0 /* Nothing to transmit */ | |
59 | #define TX_PACKET_READY 1 /* Transmit packet ready */ | |
60 | #define TX_LOCK_RUP 2 /* Transmit side locked */ | |
61 | ||
62 | #define RX_RUP_INACTIVE 0 /* Nothing received */ | |
63 | #define RX_PACKET_READY 1 /* Packet received */ | |
64 | ||
65 | #define RUP_NO_OWNER 0xff /* RUP not owned by any process */ | |
66 | ||
67 | struct RUP { | |
68 | PKT_ptr txpkt; /* Outgoing packet */ | |
69 | PKT_ptr rxpkt; /* Incoming packet */ | |
70 | WORD link; /* Which link to send down? */ | |
71 | BYTE rup_dest_unit[2]; /* Destination unit */ | |
72 | WORD handshake; /* For handshaking */ | |
73 | WORD timeout; /* Timeout */ | |
74 | WORD status; /* Status */ | |
75 | WORD txcontrol; /* Transmit control */ | |
76 | WORD rxcontrol; /* Receive control */ | |
77 | }; | |
78 | ||
79 | #endif | |
80 | ||
81 | /*********** end of file ***********/ | |
82 |