| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |