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1.1 root 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
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