4.3BSD - /usr/src/sys/vaxuba/utreg.h

   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:  *	@(#)utreg.h	7.1 (Berkeley) 6/5/86
   7:  */
   8: 
   9: /*
  10:  * System Industries Model 9700 Tape Drive
  11:  *   emulates TU45 on the UNIBUS
  12:  */
  13: 
  14: struct utdevice {
  15:     u_short utcs1;      /* control status register 1 */
  16:     short   utwc;       /* word count register */
  17:     u_short utba;       /* low 16-bits of bus address */
  18:     short   utfc;       /* frame counter */
  19:     u_short utcs2;      /* control status register 2 */
  20:     u_short utds;       /* drive status register */
  21:     u_short uter;       /* error register */
  22:     u_short utas;       /* attention status register */
  23:     u_short utcc;       /* NRZI CRC character for validation */
  24:     u_short utdb;       /* data buffer reg (not emulated) */
  25:     u_short utmr;       /* maintenance reg (not emulated) */
  26:     u_short utdt;       /* drive type register (not emulated) */
  27:     u_short utsn;       /* serial number reg (not emulated) */
  28:     u_short uttc;       /* tape control register */
  29:     u_short utbae;      /* buffer address extension register */
  30:     u_short utcs3;      /* control and status register 3 */
  31: };
  32: 
  33: /*
  34:  * utcs1 --
  35:  *   cmds, interrupt enable, extended address bits, and status
  36:  */
  37: #define UT_GO       0x0001      /* go bit */
  38: /* function codes reside in bits 5-1 */
  39: #define UT_NOP      0x0000      /* no operation */
  40: #define UT_REWOFFL  0x0002      /* rewind offline */
  41: #define UT_LOOP     0x0004      /* loop read/write */
  42: #define UT_REW      0x0006      /* rewind */
  43: #define UT_CLEAR    0x0008      /* drive clear */
  44: #define UT_SENSE    0x000a      /* drive sense */
  45: #define UT_PRESET   0x0010      /* read in preset */
  46: #define UT_DIAGN    0x0012      /* diagnostic mode set */
  47: #define UT_ERASE    0x0014      /* erase */
  48: #define UT_WEOF     0x0016      /* write tape mark */
  49: #define UT_SFORW    0x0018      /* forward space block */
  50: #define UT_SREV     0x001a      /* reverse space block */
  51: #define UT_SFORWF   0x001c      /* forward space file */
  52: #define UT_SREVF    0x001e      /* reverse space file */
  53: #define UT_WCHFORW  0x0028      /* write check forward */
  54: #define UT_WCHREV   0x002e      /* write check reverse */
  55: #define UT_WCOM     0x0030      /* write forward */
  56: #define UT_RCOM     0x0038      /* read forward */
  57: #define UT_RREV     0x003e      /* read reverse */
  58: /* the remainder are control and status bits */
  59: #define UT_IE       0x0040      /* interrupt-enable */
  60: #define UT_RDY      0x0080      /* controller ready */
  61: #define UT_EADDR    0x0300      /* extended address bits */
  62: /* bit 10 unused */
  63: #define UT_DVA      0x0800      /* drive available */
  64: /* bit 12 unused */
  65: /* bit 13 - massbus control parity error not emulated */
  66: #define UT_TRE      0x4000      /* transfer error */
  67: #define UT_SC       0x8000      /* special condition */
  68: 
  69: #define UT_BITS \
  70: "\10\20SC\17TRE\14DVA\10RDY\7IE\1GO"
  71: 
  72: /*
  73:  * utcs2 --
  74:  *   controller clear, error flags, and unit select
  75:  */
  76: /* bits 0-2 are unit select */
  77: #define UTCS2_BAI   0x0008      /* UNIBUS address increment inhibit */
  78: #define UTCS2_PAT   0x0010      /* parity test */
  79: #define UTCS2_CLR   0x0020      /* controller clear */
  80: #define UTCS2_IR    0x0040      /* input ready (not emulated) */
  81: #define UTCS2_OR    0x0080      /* output ready (not emulated) */
  82: #define UTCS2_RPE   0x0100      /* rom parity error */
  83: #define UTCS2_MXF   0x0200      /* missed transfer */
  84: #define UTCS2_NEM   0x0400      /* non existant memory */
  85: #define UTCS2_PGE   0x0800      /* program error */
  86: #define UTCS2_NED   0x1000      /* non existent drive */
  87: #define UTCS2_PE    0x2000      /* parity error */
  88: #define UTCS2_WCE   0x4000      /* write check error */
  89: #define UTCS2_DLT   0x8000      /* data late */
  90: 
  91: #define UTCS2_BITS \
  92: "\10\20DLT\17WCE\16PE\15NED\14\NEM\13\PGE\12\MXF\11RPE\10OR\7IR\6CLR\5PAT\4\BAI"
  93: 
  94: /*
  95:  * utds --
  96:  *   beginning of tape, end of tape, error summary bit, plus lots more
  97:  */
  98: #define UTDS_SLA    0x0001      /* slave attention */
  99: #define UTDS_BOT    0x0002      /* beginning of tape */
 100: #define UTDS_TM     0x0004      /* tape mark */
 101: #define UTDS_IDB    0x0008      /* identification burst */
 102: #define UTDS_SDWN   0x0010      /* slowing down */
 103: #define UTDS_PES    0x0020      /* phase encode status */
 104: #define UTDS_SSC    0x0040      /* slave status change */
 105: #define UTDS_DRY    0x0080      /* drive ready */
 106: #define UTDS_DPR    0x0100      /* drive present (always 1) */
 107: #define UTDS_GCR    0x0200      /* GCR status */
 108: #define UTDS_EOT    0x0400      /* end of tape */
 109: #define UTDS_WRL    0x0800      /* write lock */
 110: #define UTDS_MOL    0x1000      /* medium on line */
 111: #define UTDS_PIP    0x2000      /* positioning in progress */
 112: #define UTDS_ERR    0x4000      /* composite error */
 113: #define UTDS_ATA    0x8000      /* attention active */
 114: 
 115: #define UTDS_BITS \
 116: "\10\20ATA\17ERR\16PIP\15MOL\14WRL\13EOT\12GCR\11DPR\10DRY\
 117: \7SSC\6PES\5SDWN\4IDB\3TM\2BOT\1SLA"
 118: 
 119: /*
 120:  * uter --
 121:  *   detailed breakdown of error summary bit from cs2
 122:  */
 123: #define UTER_ILF    0x0001      /* illegal function */
 124: #define UTER_ILR    0x0002      /* illegal register (always 0) */
 125: #define UTER_RMR    0x0004      /* register modification refused */
 126: #define UTER_RPE    0x0008      /* read data parity error */
 127: #define UTER_FMT    0x0010      /* format error */
 128: #define UTER_DPAR   0x0020      /* data bus parity error */
 129: #define UTER_INC    0x0040      /* incorrectable data */
 130: #define UTER_PEF    0x0080      /* PE format error */
 131: #define UTER_NSG    0x0100      /* non standard gap */
 132: #define UTER_FCE    0x0200      /* frame count error */
 133: #define UTER_CS     0x0400      /* correctable skew */
 134: #define UTER_NEF    0x0800      /* non executable function */
 135: #define UTER_DTE    0x1000      /* drive timing error */
 136: #define UTER_OPI    0x2000      /* operation incomplete */
 137: #define UTER_UNS    0x4000      /* unsafe */
 138: #define UTER_COR    0x8000      /* correctible data error */
 139: 
 140: /*
 141:  * These errors we consider "hard"; UTER_OPI and UTER_RPE
 142:  * are considered "soft", at least for the moment.
 143:  */
 144: #define UTER_HARD   (UTER_UNS|UTER_NEF|UTER_DPAR|UTER_FMT|UTER_RMR|\
 145:              UTER_ILR|UTER_ILF)
 146: 
 147: #define UTER_BITS \
 148: "\10\20COR\17UNS\16OPI\15DTE\14NEF\13CS\12FCE\11NSG\10PEF\
 149: \7INC\6DPAR\5FMT\4RPE\3RMR\2ILR\1ILF"
 150: 
 151: /*
 152:  * uttc --
 153:  *   tape format and density
 154:  */
 155: /* bits 0-2 are slave select */
 156: #define UTTC_EVPAR  0x0008      /* even parity */
 157: #define UTTC_FMT    0x00f0      /* format select (see below) */
 158: #define UTTC_DEN    0x0700      /* density select (see below) */
 159: /* bit 11 not used */
 160: #define UTTC_EAODTE 0x1000      /* (not emulated) */
 161: #define UTTC_TCW    0x2000      /* tape control write */
 162: #define UTTC_FCS    0x4000      /* frame count status */
 163: #define UTTC_ACCL   0x8000      /* acceleration */
 164: 
 165: /* the bits to stuff in UTTC_DEN */
 166: #define UT_NRZI     0x0000      /* 800 bpi code */
 167: #define UT_PE       0x0400      /* 1600 bpi code */
 168: #define UT_GCR      0x0500      /* 6250 bpi code */
 169: 
 170: /* tape formats - only PDP-11 standard is supported */
 171: #define PDP11FMT    0x00c0      /* PDP-11 standard */
 172: 
 173: #define b_repcnt  b_bcount
 174: #define b_command b_resid
 175: #define b_state   b_active

Defined struct's

Defined macros

Usage of this include