projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 3520c3b6 C |
1 | /* mbareg.h 6.1 83/07/29 */ |
| 2 | ||
| 3 | /* | |
| 4 | * VAX MASSBUS adapter registers | |
| 5 | */ | |
| 6 | ||
| 7 | struct mba_regs | |
| 8 | { | |
| 9 | int mba_csr; /* configuration register */ | |
| 10 | int mba_cr; /* control register */ | |
| 11 | int mba_sr; /* status register */ | |
| 12 | int mba_var; /* virtual address register */ | |
| 13 | int mba_bcr; /* byte count register */ | |
| 14 | int mba_dr; | |
| 15 | int mba_pad1[250]; | |
| 16 | struct mba_drv { /* per drive registers */ | |
| 17 | int mbd_cs1; /* control status */ | |
| 18 | int mbd_ds; /* drive status */ | |
| 19 | int mbd_er1; /* error register */ | |
| 20 | int mbd_mr1; /* maintenance register */ | |
| 21 | int mbd_as; /* attention status */ | |
| 22 | int mbd_da; /* desired address (disks) */ | |
| 23 | #define mbd_fc mbd_da /* frame count (tapes) */ | |
| 24 | int mbd_dt; /* drive type */ | |
| 25 | int mbd_la; /* look ahead (disks) */ | |
| 26 | #define mbd_ck mbd_la /* ??? (tapes) */ | |
| 27 | int mbd_sn; /* serial number */ | |
| 28 | int mbd_of; /* ??? */ | |
| 29 | #define mbd_tc mbd_of /* ??? */ | |
| 30 | int mbd_fill[22]; | |
| 31 | } mba_drv[8]; | |
| 32 | struct pte mba_map[256]; /* io space virtual map */ | |
| 33 | int mba_pad2[256*5]; /* to size of a nexus */ | |
| 34 | }; | |
| 35 | ||
| 36 | /* | |
| 37 | * Bits in mba_cr | |
| 38 | */ | |
| 39 | #define MBCR_INIT 0x1 /* init mba */ | |
| 40 | #define MBCR_IE 0x4 /* enable mba interrupts */ | |
| 41 | ||
| 42 | /* | |
| 43 | * Bits in mba_sr | |
| 44 | */ | |
| 45 | #define MBSR_DTBUSY 0x80000000 /* data transfer busy */ | |
| 46 | #define MBSR_NRCONF 0x40000000 /* no response confirmation */ | |
| 47 | #define MBSR_CRD 0x20000000 /* corrected read data */ | |
| 48 | #define MBSR_CBHUNG 0x00800000 /* control bus hung */ | |
| 49 | #define MBSR_PGE 0x00080000 /* programming error */ | |
| 50 | #define MBSR_NED 0x00040000 /* non-existant drive */ | |
| 51 | #define MBSR_MCPE 0x00020000 /* massbus control parity error */ | |
| 52 | #define MBSR_ATTN 0x00010000 /* attention from massbus */ | |
| 53 | #define MBSR_SPE 0x00004000 /* silo parity error */ | |
| 54 | #define MBSR_DTCMP 0x00002000 /* data transfer completed */ | |
| 55 | #define MBSR_DTABT 0x00001000 /* data transfer aborted */ | |
| 56 | #define MBSR_DLT 0x00000800 /* data late */ | |
| 57 | #define MBSR_WCKUP 0x00000400 /* write check upper */ | |
| 58 | #define MBSR_WCKLWR 0x00000200 /* write check lower */ | |
| 59 | #define MBSR_MXF 0x00000100 /* miss transfer error */ | |
| 60 | #define MBSR_MBEXC 0x00000080 /* massbus exception */ | |
| 61 | #define MBSR_MDPE 0x00000040 /* massbus data parity error */ | |
| 62 | #define MBSR_MAPPE 0x00000020 /* page frame map parity error */ | |
| 63 | #define MBSR_INVMAP 0x00000010 /* invalid map */ | |
| 64 | #define MBSR_ERRCONF 0x00000008 /* error confirmation */ | |
| 65 | #define MBSR_RDS 0x00000004 /* read data substitute */ | |
| 66 | #define MBSR_ISTIMO 0x00000002 /* interface sequence timeout */ | |
| 67 | #define MBSR_RDTIMO 0x00000001 /* read data timeout */ | |
| 68 | ||
| 69 | #define MBSR_BITS \ | |
| 70 | "\20\40DTBUSY\37NRCONF\36CRD\30CBHUNG\24PGE\23NED\22MCPE\21ATTN\ | |
| 71 | \17SPE\16DTCMP\15DTABT\14DLT\13WCKUP\12WCKLWR\11MXF\10MBEXC\7MDPE\ | |
| 72 | \6MAPPE\5INVMAP\4ERRCONF\3RDS\2ISTIMO\1RDTIMO" | |
| 73 | ||
| 74 | #define MBSR_HARD (MBSR_PGE|MBSR_ERRCONF|MBSR_ISTIMO|MBSR_RDTIMO) | |
| 75 | ||
| 76 | #define MBSR_EBITS (~(MBSR_DTBUSY|MBSR_CRD|MBSR_ATTN|MBSR_DTCMP)) | |
| 77 | ||
| 78 | #ifdef KERNEL | |
| 79 | extern char mbsr_bits[]; | |
| 80 | #endif | |
| 81 | ||
| 82 | /* | |
| 83 | * Commands for mbd_cs1 | |
| 84 | */ | |
| 85 | #define MB_WCOM 0x30 | |
| 86 | #define MB_RCOM 0x38 | |
| 87 | #define MB_GO 0x1 | |
| 88 | ||
| 89 | /* | |
| 90 | * Bits in mbd_ds. | |
| 91 | */ | |
| 92 | #define MBDS_ERR 0x00004000 /* error in drive */ | |
| 93 | #define MBDS_MOL 0x00001000 /* medium on line */ | |
| 94 | #define MBDS_DPR 0x00000100 /* drive present */ | |
| 95 | #define MBDS_DRY 0x00000080 /* drive ready */ | |
| 96 | ||
| 97 | #define MBDS_DREADY (MBDS_MOL|MBDS_DPR|MBDS_DRY) | |
| 98 | ||
| 99 | /* | |
| 100 | * Bits in mbd_dt | |
| 101 | */ | |
| 102 | #define MBDT_NSA 0x8000 /* not sector addressible */ | |
| 103 | #define MBDT_TAP 0x4000 /* is a tape */ | |
| 104 | #define MBDT_MOH 0x2000 /* moving head */ | |
| 105 | #define MBDT_7CH 0x1000 /* 7 channel */ | |
| 106 | #define MBDT_DRQ 0x800 /* drive request required */ | |
| 107 | #define MBDT_SPR 0x400 /* slave present */ | |
| 108 | ||
| 109 | #define MBDT_TYPE 0x1ff | |
| 110 | #define MBDT_MASK (MBDT_NSA|MBDT_TAP|MBDT_TYPE) | |
| 111 | ||
| 112 | /* type codes for disk drives */ | |
| 113 | #define MBDT_RP04 020 | |
| 114 | #define MBDT_RP05 021 | |
| 115 | #define MBDT_RP06 022 | |
| 116 | #define MBDT_RP07 042 | |
| 117 | #define MBDT_RM02 025 | |
| 118 | #define MBDT_RM03 024 | |
| 119 | #define MBDT_RM05 027 | |
| 120 | #define MBDT_RM80 026 | |
| 121 | #define MBDT_ML11A 0110 | |
| 122 | #define MBDT_ML11B 0111 | |
| 123 | ||
| 124 | /* type codes for tape drives */ | |
| 125 | #define MBDT_TM03 050 | |
| 126 | #define MBDT_TE16 051 | |
| 127 | #define MBDT_TU45 052 | |
| 128 | #define MBDT_TU77 054 | |
| 129 | #define MBDT_TU78 0101 |