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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2001-2003 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #ifndef	_SYS_BSCBUS_H
     27 #define	_SYS_BSCBUS_H
     28 
     29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     30 
     31 #ifdef	__cplusplus
     32 extern "C" {
     33 #endif
     34 
     35 /*
     36  * The bscbus nexus driver provides the same client interface as the lombus
     37  * nexus driver.
     38  */
     39 #include <sys/lombus.h>
     40 
     41 /*
     42  * Register spaces (as lombus.h but spaces now have a channel
     43  * value encoded in it too)
     44  *
     45  *	Space*	Size	Range		Meaning
     46  *		(bits)
     47  *
     48  *	xx00	8	[0 .. 16383]	LOM virtual registers
     49  *	xx01	8	[0]		Watchdog pat (on write)
     50  *	xx02	16	[0]		Async event info (read only)
     51  *	All	32	[-4 .. -12]	Access handle fault info
     52  *      * xx is the channel number.
     53  */
     54 
     55 #define	LOMBUS_SPACE_TO_REGSET(rsp)	((rsp) & 0xff)
     56 #define	LOMBUS_SPACE_TO_CHANNEL(rsp)	(((rsp) & 0xff00) >> 8)
     57 #define	LOMBUS_SPACE(regset, channel)	((regset) | ((channel) << 8))
     58 
     59 #ifdef	__cplusplus
     60 }
     61 #endif
     62 
     63 #endif	/* _SYS_BSCBUS_H */
     64