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 62