4.3BSD - /usr/src/sys/vaxmba/htreg.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:  *	@(#)htreg.h	7.1 (Berkeley) 6/5/86
   7:  */
   8: 
   9: struct  htdevice
  10: {
  11:     int htcs1;      /* control status register */
  12:     int htds;       /* drive status register */
  13:     int hter;       /* error register */
  14:     int htmr;       /* maintenance register */
  15:     int htas;       /* attention status register */
  16:     int htfc;       /* frame counter */
  17:     int htdt;       /* drive type register */
  18:     int htck;       /* nrzi check (crc) error character */
  19:     int htsn;       /* serial number register */
  20:     int httc;       /* tape controll register */
  21: };
  22: 
  23: /* htcs1 */
  24: #define HT_GO       000001      /* go bit */
  25: #define HT_SENSE    000000      /* no operations (sense) */
  26: #define HT_REWOFFL  000002      /* rewind offline */
  27: #define HT_REW      000006      /* rewind */
  28: #define HT_DCLR     000010      /* drive clear */
  29: #define HT_RIP      000020      /* read in preset */
  30: #define HT_ERASE    000024      /* erase */
  31: #define HT_WEOF     000026      /* write tape mark */
  32: #define HT_SFORW    000030      /* space forward */
  33: #define HT_SREV     000032      /* space reverse */
  34: #define HT_WCHFWD   000050      /* write check forward */
  35: #define HT_WCHREV   000056      /* write check reverse */
  36: #define HT_WCOM     000060      /* write forward */
  37: #define HT_RCOM     000070      /* read forward */
  38: #define HT_RREV     000076      /* read reverse */
  39: 
  40: /* htds */
  41: #define HTDS_ATA    0100000     /* attention active */
  42: #define HTDS_ERR    0040000     /* composite error */
  43: #define HTDS_PIP    0020000     /* positioning in progress */
  44: #define HTDS_MOL    0010000     /* medium on line */
  45: #define HTDS_WRL    0004000     /* write lock */
  46: #define HTDS_EOT    0002000     /* end of tape */
  47: /* bit 9 is unused */
  48: #define HTDS_DPR    0000400     /* drive present (always 1) */
  49: #define HTDS_DRY    0000200     /* drive ready */
  50: #define HTDS_SSC    0000100     /* slave status change */
  51: #define HTDS_PES    0000040     /* phase-encoded status */
  52: #define HTDS_SDWN   0000020     /* settle down */
  53: #define HTDS_IDB    0000010     /* identification burst */
  54: #define HTDS_TM     0000004     /* tape mark */
  55: #define HTDS_BOT    0000002     /* beginning of tape */
  56: #define HTDS_SLA    0000001     /* slave attention */
  57: 
  58: #define HTDS_BITS \
  59: "\10\20ATA\17ERR\16PIP\15MOL\14WRL\13EOT\11DPR\10DRY\
  60: \7SSC\6PES\5SDWN\4IDB\3TM\2BOT\1SLA"
  61: 
  62: /* hter */
  63: #define HTER_CORCRC 0100000     /* correctible data or ecc */
  64: #define HTER_UNS    0040000     /* unsafe */
  65: #define HTER_OPI    0020000     /* operation incomplete */
  66: #define HTER_DTE    0010000     /* drive timing error */
  67: #define HTER_NEF    0004000     /* non-executable function */
  68: #define HTER_CSITM  0002000     /* correctable skew/illegal tape mark */
  69: #define HTER_FCE    0001000     /* frame count error */
  70: #define HTER_NSG    0000400     /* non-standard gap */
  71: #define HTER_PEFLRC 0000200     /* format error or lrc error */
  72: #define HTER_INCVPE 0000100     /* incorrectable data error or vertical
  73: 					   parity error */
  74: #define HTER_DPAR   0000040     /* data parity error */
  75: #define HTER_FMT    0000020     /* format error */
  76: #define HTER_CPAR   0000010     /* control bus parity error */
  77: #define HTER_RMR    0000004     /* register modification refused */
  78: #define HTER_ILR    0000002     /* illegal register */
  79: #define HTER_ILF    0000001     /* illegal function */
  80: 
  81: #define HTER_BITS \
  82: "\10\20CORCRC\17UNS\16OPI\15DTE\14NEF\13CSITM\12FCE\11NSG\10PEFLRC\
  83: \7INCVPE\6DPAR\5FMT\4CPAR\3RMR\2ILR\1ILF"
  84: #define HTER_HARD \
  85:     (HTER_UNS|HTER_OPI|HTER_NEF|HTER_DPAR|HTER_FMT|HTER_CPAR| \
  86:     HTER_RMR|HTER_ILR|HTER_ILF)
  87: 
  88: /* htdt */
  89: #define HTDT_NSA    0100000     /* not sector addressed; always 1 */
  90: #define HTDT_TAP    0040000     /* tape; always 1 */
  91: #define HTDT_MOH    0020000     /* moving head; always 0 */
  92: #define HTDT_7CH    0010000     /* 7 channel; always 0 */
  93: #define HTDT_DRQ    0004000     /* drive requested; always 0 */
  94: #define HTDT_SPR    0002000     /* slave present */
  95: /* bit 9 is spare */
  96: /* bits 8-0 are formatter/transport type */
  97: 
  98: /* httc */
  99: #define HTTC_ACCL   0100000     /* transport is not reading/writing */
 100: #define HTTC_FCS    0040000     /* frame count status */
 101: #define HTTC_SAC    0020000     /* slave address change */
 102: #define HTTC_EAODTE 0010000     /* enable abort on data xfer errors */
 103: /* bits 8-10 are density select */
 104: #define HTTC_800BPI 0001400     /* in bits 8-10, dens=1600 */
 105: #define HTTC_1600BPI    0002000     /* in bits 8-10, dens=800 */
 106: /* bits 4-7 are format select */
 107: #define HTTC_PDP11  0000300     /* in bits 4-7, pdp11 normal format */
 108: #define HTTC_EVEN   0000010     /* select even parity */
 109: /* bits 0 - 2 are slave select */
 110: 
 111: #define b_repcnt  b_bcount
 112: #define b_command b_resid

Defined struct's

Defined macros

Usage of this include