1 /* 2 * Copyright (c) 1982, 1986 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 * 6 * @(#)mbareg.h 7.1 (Berkeley) 06/05/86 7 */ 8 9 /* 10 * VAX MASSBUS adapter registers 11 */ 12 13 struct mba_regs 14 { 15 int mba_csr; /* configuration register */ 16 int mba_cr; /* control register */ 17 int mba_sr; /* status register */ 18 int mba_var; /* virtual address register */ 19 int mba_bcr; /* byte count register */ 20 int mba_dr; 21 int mba_pad1[250]; 22 struct mba_drv { /* per drive registers */ 23 int mbd_cs1; /* control status */ 24 int mbd_ds; /* drive status */ 25 int mbd_er1; /* error register */ 26 int mbd_mr1; /* maintenance register */ 27 int mbd_as; /* attention status */ 28 int mbd_da; /* desired address (disks) */ 29 #define mbd_fc mbd_da /* frame count (tapes) */ 30 int mbd_dt; /* drive type */ 31 int mbd_la; /* look ahead (disks) */ 32 #define mbd_ck mbd_la /* ??? (tapes) */ 33 int mbd_sn; /* serial number */ 34 int mbd_of; /* ??? */ 35 #define mbd_tc mbd_of /* ??? */ 36 int mbd_fill[22]; 37 } mba_drv[8]; 38 struct pte mba_map[256]; /* io space virtual map */ 39 int mba_pad2[256*5]; /* to size of a nexus */ 40 }; 41 42 /* 43 * Bits in mba_cr 44 */ 45 #define MBCR_INIT 0x1 /* init mba */ 46 #define MBCR_IE 0x4 /* enable mba interrupts */ 47 48 /* 49 * Bits in mba_sr 50 */ 51 #define MBSR_DTBUSY 0x80000000 /* data transfer busy */ 52 #define MBSR_NRCONF 0x40000000 /* no response confirmation */ 53 #define MBSR_CRD 0x20000000 /* corrected read data */ 54 #define MBSR_CBHUNG 0x00800000 /* control bus hung */ 55 #define MBSR_PGE 0x00080000 /* programming error */ 56 #define MBSR_NED 0x00040000 /* non-existant drive */ 57 #define MBSR_MCPE 0x00020000 /* massbus control parity error */ 58 #define MBSR_ATTN 0x00010000 /* attention from massbus */ 59 #define MBSR_SPE 0x00004000 /* silo parity error */ 60 #define MBSR_DTCMP 0x00002000 /* data transfer completed */ 61 #define MBSR_DTABT 0x00001000 /* data transfer aborted */ 62 #define MBSR_DLT 0x00000800 /* data late */ 63 #define MBSR_WCKUP 0x00000400 /* write check upper */ 64 #define MBSR_WCKLWR 0x00000200 /* write check lower */ 65 #define MBSR_MXF 0x00000100 /* miss transfer error */ 66 #define MBSR_MBEXC 0x00000080 /* massbus exception */ 67 #define MBSR_MDPE 0x00000040 /* massbus data parity error */ 68 #define MBSR_MAPPE 0x00000020 /* page frame map parity error */ 69 #define MBSR_INVMAP 0x00000010 /* invalid map */ 70 #define MBSR_ERRCONF 0x00000008 /* error confirmation */ 71 #define MBSR_RDS 0x00000004 /* read data substitute */ 72 #define MBSR_ISTIMO 0x00000002 /* interface sequence timeout */ 73 #define MBSR_RDTIMO 0x00000001 /* read data timeout */ 74 75 #define MBSR_BITS \ 76 "\20\40DTBUSY\37NRCONF\36CRD\30CBHUNG\24PGE\23NED\22MCPE\21ATTN\ 77 \17SPE\16DTCMP\15DTABT\14DLT\13WCKUP\12WCKLWR\11MXF\10MBEXC\7MDPE\ 78 \6MAPPE\5INVMAP\4ERRCONF\3RDS\2ISTIMO\1RDTIMO" 79 80 #define MBSR_HARD (MBSR_PGE|MBSR_ERRCONF|MBSR_ISTIMO|MBSR_RDTIMO) 81 82 #define MBSR_EBITS (~(MBSR_DTBUSY|MBSR_CRD|MBSR_ATTN|MBSR_DTCMP)) 83 84 #ifdef KERNEL 85 extern char mbsr_bits[]; 86 #endif 87 88 /* 89 * Commands for mbd_cs1 90 */ 91 #define MB_WCOM 0x30 92 #define MB_RCOM 0x38 93 #define MB_GO 0x1 94 95 /* 96 * Bits in mbd_ds. 97 */ 98 #define MBDS_ERR 0x00004000 /* error in drive */ 99 #define MBDS_MOL 0x00001000 /* medium on line */ 100 #define MBDS_DPR 0x00000100 /* drive present */ 101 #define MBDS_DRY 0x00000080 /* drive ready */ 102 103 #define MBDS_DREADY (MBDS_MOL|MBDS_DPR|MBDS_DRY) 104 105 /* 106 * Bits in mbd_dt 107 */ 108 #define MBDT_NSA 0x8000 /* not sector addressible */ 109 #define MBDT_TAP 0x4000 /* is a tape */ 110 #define MBDT_MOH 0x2000 /* moving head */ 111 #define MBDT_7CH 0x1000 /* 7 channel */ 112 #define MBDT_DRQ 0x800 /* drive request required */ 113 #define MBDT_SPR 0x400 /* slave present */ 114 115 #define MBDT_TYPE 0x1ff 116 #define MBDT_MASK (MBDT_NSA|MBDT_TAP|MBDT_TYPE) 117 118 /* type codes for disk drives */ 119 #define MBDT_RP04 020 120 #define MBDT_RP05 021 121 #define MBDT_RP06 022 122 #define MBDT_RP07 042 123 #define MBDT_RM02 025 124 #define MBDT_RM03 024 125 #define MBDT_RM05 027 126 #define MBDT_RM80 026 127 #define MBDT_ML11A 0110 128 #define MBDT_ML11B 0111 129 130 /* type codes for tape drives */ 131 #define MBDT_TM03 050 132 #define MBDT_TE16 051 133 #define MBDT_TU45 052 134 #define MBDT_TU77 054 135 #define MBDT_TU78 0101 136