diff options
Diffstat (limited to 'drivers/char/rio/rup.h')
| -rw-r--r-- | drivers/char/rio/rup.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/char/rio/rup.h b/drivers/char/rio/rup.h new file mode 100644 index 000000000..b9d2bc03d --- /dev/null +++ b/drivers/char/rio/rup.h @@ -0,0 +1,82 @@ +/**************************************************************************** + ******* ******* + ******* R U P S T R U C T U R E + ******* ******* + **************************************************************************** + + Author : Ian Nandhra + 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 _rup_h +#define _rup_h 1 + +#ifdef SCCS_LABELS +#ifndef lint +/* static char *_rio_rup_h_sccs = "@(#)rup.h 1.5"; */ +#endif +#endif + +#if defined( HOST ) || defined( INKERNEL ) +#define MAX_RUP ((short) 16) +#endif +#ifdef RTA +#define MAX_RUP ((short) 1) +#endif + +#define PKTS_PER_RUP ((short) 2) /* They are always used in pairs */ + +/************************************************* + * Define all the packet request stuff + ************************************************/ +#define TX_RUP_INACTIVE 0 /* Nothing to transmit */ +#define TX_PACKET_READY 1 /* Transmit packet ready */ +#define TX_LOCK_RUP 2 /* Transmit side locked */ + +#define RX_RUP_INACTIVE 0 /* Nothing received */ +#define RX_PACKET_READY 1 /* Packet received */ + +#define RUP_NO_OWNER 0xff /* RUP not owned by any process */ + +struct RUP { + PKT_ptr txpkt; /* Outgoing packet */ + PKT_ptr rxpkt; /* Incoming packet */ + WORD link; /* Which link to send down? */ + BYTE rup_dest_unit[2]; /* Destination unit */ + WORD handshake; /* For handshaking */ + WORD timeout; /* Timeout */ + WORD status; /* Status */ + WORD txcontrol; /* Transmit control */ + WORD rxcontrol; /* Receive control */ + }; + +#endif + +/*********** end of file ***********/ + |