2.11BSD#431 - /usr/src/sys/pdpuba/rxreg.h

   1: /*
   2:  * Copyright (c) 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:  *	@(#)rxreg.h	1.2 (2.11BSD GTE) 1995/11/21
   7:  */
   8: 
   9: struct  rxdevice    {
  10:     short   rxcs;           /* command and status register */
  11:     short   rxdb;           /* multipurpose register: */
  12: #define rxba    rxdb            /* 	bus address register */
  13: #define rxqa    rxdb            /*	Q22 high-bits */
  14: #define rxta    rxdb            /*	track address register */
  15: #define rxsa    rxdb            /*	sector address register */
  16: #define rxwc    rxdb            /*	word count register */
  17: #define rxes    rxdb            /*	error and status register */
  18: };
  19: 
  20: /* bits in rxcs */
  21: #define RX_ERR      0100000     /* error */
  22: #define RX_INIT     0040000     /* initialize */
  23: 
  24: /* bits 13-12 are the extension bits */
  25: #define RX_RX02     0004000     /* rx02 (read only) */
  26: 
  27: #define RX_Q22      0002000     /* enable 22-bit mode (DSD MXV-22) */
  28: #define RX_HD       0001000     /* DSD 480 head select */
  29: #define RX_DD       0000400     /* double density */
  30: #define RX_XREQ     0000200     /* transfer request */
  31: #define RX_IE       0000100     /* interrupt enable */
  32: #define RX_DONE     0000040     /* done */
  33: #define RX_UNIT     0000020     /* unit select */
  34: 
  35: /* bits 3-1 are the function code */
  36: #define RX_GO       0000001     /* go */
  37: 
  38: /* function codes */
  39: #define RX_FILL     0000000     /* fill buffer */
  40: #define RX_EMPTY    0000002     /* empty */
  41: #define RX_WSECT    0000004     /* write sector */
  42: #define RX_RSECT    0000006     /* read sector */
  43: #define RX_SMD      0000010     /* set media density */
  44: #define RX_RDSTAT   0000012     /* read status */
  45: #define RX_WDDSECT  0000014     /* write deleted data sector */
  46: #define RX_RDEC     0000016     /* read error code */
  47: 
  48: /* ioctls */
  49: #define RXIOC_FORMAT    _IO(r, 1)   /* format media */
  50: 
  51: #define RX_BITS \
  52: "\10\20ERR\17INIT\14RX02\13QBUS\12HD\11DD\10XREQ\7IE\6DONE\5UNIT1\1GO"
  53: 
  54: /* bits in rxes */
  55: /* bits 15-12 are unused in the standard rx11 */
  56: #define RXES_IBMDD  0010000     /* DSD 480 IBM double density select */
  57: #define RXES_NXM    0004000     /* nonexistent memory */
  58: #define RXES_WCOVFL 0002000     /* word count overflow */
  59: 
  60: /* bit 9 is unused in the standard rx11 */
  61: #define RXES_HD     0001000     /* DSD 480 head select */
  62: #define RXES_UNIT   0000400     /* unit select */
  63: #define RXES_RDY    0000200     /* ready */
  64: #define RXES_DDATA  0000100     /* deleted data */
  65: #define RXES_DD     0000040     /* double density */
  66: #define RXES_DENSERR    0000020     /* density error */
  67: #define RXES_ACLO   0000010     /* ac low */
  68: #define RXES_INITDONE   0000004     /* initialization done */
  69: 
  70: /* bit 1 is unused in the standard rx11 */
  71: #define RXES_S1RDY  0000002     /* DSD 480 side 1 ready */
  72: #define RXES_CRC    0000001     /* crc error */
  73: #define RXES_BITS   \
  74: "\10\15IBMDD\14NXM\13WCOVFL\12HD\11UNIT1\10RDY\7DDATA\
  75: \6DDENS\5DENSERR\4ACLO\3INIT\2S1RDY\1CRC"
  76: 
  77: /* bits in rxes1 */
  78: /* bits 15-8 contain the word count */
  79: /* bits 7-0 contain the error code */
  80: #define RXES1_D0NOHOME  0000010     /* drive 0 failed to see home on init */
  81: #define RXES1_D1NOHOME  0000020     /* drive 1 failed to see home on init */
  82: #define RXES1_XTRK  0000040     /* track number > 076 */
  83: #define RXES1_WRAP  0000050     /* found home before desired track */
  84: #define RXES1_HNF   0000070     /* header not found after 2 revs */
  85: #define RXES1_NSEP  0000110     /* up controller found not SEP clock */
  86: #define RXES1_NOPREAMB  0000120     /* preamble not found */
  87: #define RXES1_NOID  0000130     /* preamble found;ID burst timeout */
  88: #define RXES1_HNEQTRK   0000150     /* track reached doesn't match header */
  89: #define RXES1_XIDAM 0000160     /* up made to many attempts for IDAM */
  90: #define RXES1_NOAM  0000170     /* data AM timeout */
  91: #define RXES1_CRC   0000200     /* crc error reading disk sector */
  92: #define RXES1_OOPS  0000220     /* read/write electronics failed test */
  93: #define RXES1_WCOVFL    0000230     /* word count overflow */
  94: #define RXES1_DENSERR   0000240     /* density error */
  95: #define RXES1_BADKEY    0000250     /* bad key word for Set Media Density */
  96: 
  97: /* bits in rxes4 */
  98: /* bits 15-8 contain the track address for header track address errors */
  99: #define RXES4_UNIT  0000200     /* unit select */
 100: #define RXES4_D1DENS    0000100     /* drive 1 density */
 101: #define RXES4_HEAD  0000040     /* head loaded */
 102: #define RXES4_D0DENS    0000020     /* drive 0 density */
 103: 
 104: /* bits 3-1 are unused */
 105: #define RXES4_DD    0000001     /* diskette is double density */
 106: #define RXES4_BITS  "\10\10DRIVE1\7D1HIDENS\6HEAD\5D0HIDENS\1DDENS"
 107: 
 108: #define b_seccnt    av_back
 109: #define b_state     b_active

Defined struct's

Defined macros

Usage of this include