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      1 /*	$NetBSD: screg.h,v 1.2 2008/04/28 20:24:01 martin Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Matthew Fredette.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Register map for the Sun2 SCSI Interface (sc)
     34  */
     35 
     36 #if __for_reference_only__
     37 struct sunsc_regs {
     38 	u_char	sunsc_data;	/* data register */
     39 	u_char	sunsc_unused0;
     40 	u_char	sunsc_cmd_stat;	/* command/status register */
     41 	u_char	sunsc_unused1;
     42 	u_short	sunsc_icr;	/* interface control register */
     43 	u_short	sunsc_unused2;
     44 	u_short	sunsc_dma_addr_h;	/* DMA address, high 16 */
     45 	u_short	sunsc_dma_addr_l;	/* DMA address, low 16 */
     46 	u_short	sunsc_dma_count;/* DMA count */
     47 	u_char	sunsc_unused3;
     48 	u_char	sunsc_intvec;	/* interrupt vector (VME only) */
     49 };
     50 #endif
     51 
     52 /* Register offsets. */
     53 #define	SCREG_DATA		(0)
     54 #define	SCREG_CMD_STAT		(2)
     55 #define	SCREG_ICR		(4)
     56 #define	SCREG_DMA_ADDR_H	(8)
     57 #define	SCREG_DMA_ADDR_L	(10)
     58 #define	SCREG_DMA_COUNT		(12)
     59 #define	SCREG_INTVEC		(15)
     60 #define	SCREG_BANK_SZ		(16)
     61 
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