1 /* $NetBSD: mbareg.h,v 1.2 1995/10/20 13:43:44 ragge Exp $ */ 2 /* 3 * Copyright (c) 1994 Ludd, University of Lule}, Sweden 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed at Ludd, University of Lule}. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* mbareg.h - 940320/ragge */ 33 34 struct mba_device { 35 u_int pad1; 36 u_int md_ds; /* unit status */ 37 u_int pad2[4]; 38 u_int md_dt; /* unit type */ 39 u_int pad3[25]; 40 }; 41 42 struct mba_regs { 43 u_int mba_csr; 44 u_int mba_cr; 45 u_int mba_sr; 46 u_int mba_var; 47 u_int mba_bc; 48 u_int mba_dr; 49 u_int mba_smr; 50 u_int mba_car; 51 u_int utrymme[248]; 52 struct mba_device mba_md[8]; /* unit specific regs */ 53 u_int mba_map[256]; 54 }; 55 56 /* 57 * Different states which can be on massbus. 58 */ 59 /* Write to mba_cr */ 60 #define MBACR_IBC 0x10 61 #define MBACR_MMM 0x8 62 #define MBACR_IE 0x4 63 #define MBACR_ABORT 0x2 64 #define MBACR_INIT 0x1 65 66 /* Read from mba_sr: */ 67 #define MBASR_DTBUSY 0x80000000 68 #define MBASR_CRD 0x20000000 69 #define MBASR_CBHUNG 0x800000 70 #define MBASR_PGE 0x80000 71 #define MBASR_NED 0x40000 /* NonExistent Drive */ 72 #define MBASR_MCPE 0x20000 /* Massbuss Control Parity Error */ 73 #define MBASR_ATTN 0x10000 /* Attention from Massbus */ 74 #define MBASR_SPE 0x4000 /* Silo Parity Error */ 75 #define MBASR_DTCMP 0x2000 /* Data Transfer CoMPleted */ 76 #define MBASR_DTABT 0x1000 /* Data Transfer ABorTed */ 77 #define MBASR_DLT 0x800 /* Data LaTe */ 78 #define MBASR_WCKUE 0x400 /* Write check upper error */ 79 #define MBASR_WCKLE 0x200 /* Write check lower error */ 80 #define MBASR_MXE 0x100 /* Miss transfer error */ 81 #define MBASR_MBEXC 0x80 /* Massbuss exception */ 82 #define MBASR_MDPE 0x40 /* Massbuss data parity error */ 83 #define MBASR_MAPPE 0x20 /* Page frame map parity error */ 84 #define MBASR_INVMAP 0x10 /* Invalid map */ 85 #define MBASR_ERR_STAT 0x8 /* Error status */ 86 #define MBASR_NRSTAT 0x2 /* No Response status */ 87 88 /* Definitions in mba_device md_ds */ 89 #define MBADS_DPR 0x100 /* Unit present */ 90 91 /* Definitions in mba_device md_dt */ 92 #define MBADT_RP04 0x10 93 #define MBADT_RP05 0x11 94 #define MBADT_RP06 0x12 95 #define MBADT_RP07 0x22 96 #define MBADT_RM02 0x15 97 #define MBADT_RM03 0x14 98 #define MBADT_RM05 0x17 99 #define MBADT_RM80 0x16 100 #define MBADT_DRQ 0x800 /* Dual ported */ 101 #define MBADT_MOH 0x2000 /* Moving head device */ 102