ia64/linux-2.6.18-xen.hg

view drivers/char/rio/rup.h @ 0:831230e53067

Import 2.6.18 from kernel.org tarball.
author Ian Campbell <ian.campbell@xensource.com>
date Wed Apr 11 14:15:44 2007 +0100 (2007-04-11)
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1 /****************************************************************************
2 ******* *******
3 ******* R U P S T R U C T U R E
4 ******* *******
5 ****************************************************************************
7 Author : Ian Nandhra
8 Date :
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.
27 Version : 0.01
30 Mods
31 ----------------------------------------------------------------------------
32 Date By Description
33 ----------------------------------------------------------------------------
35 ***************************************************************************/
37 #ifndef _rup_h
38 #define _rup_h 1
40 #define MAX_RUP ((short) 16)
41 #define PKTS_PER_RUP ((short) 2) /* They are always used in pairs */
43 /*************************************************
44 * Define all the packet request stuff
45 ************************************************/
46 #define TX_RUP_INACTIVE 0 /* Nothing to transmit */
47 #define TX_PACKET_READY 1 /* Transmit packet ready */
48 #define TX_LOCK_RUP 2 /* Transmit side locked */
50 #define RX_RUP_INACTIVE 0 /* Nothing received */
51 #define RX_PACKET_READY 1 /* Packet received */
53 #define RUP_NO_OWNER 0xff /* RUP not owned by any process */
55 struct RUP {
56 u16 txpkt; /* Outgoing packet */
57 u16 rxpkt; /* Incoming packet */
58 u16 link; /* Which link to send down? */
59 u8 rup_dest_unit[2]; /* Destination unit */
60 u16 handshake; /* For handshaking */
61 u16 timeout; /* Timeout */
62 u16 status; /* Status */
63 u16 txcontrol; /* Transmit control */
64 u16 rxcontrol; /* Receive control */
65 };
67 #endif
69 /*********** end of file ***********/