sireg.h

Macros

SIERR_BITS        X
SIERR_CNT         X
SIERR_ERR         X
SIERR_TIMO        X
SISSR_BITS        X
SISSR_BUSY        X
SISSR_DONE        X
SISSR_ERR         X
SISSR_NRDY        X
SI_BITS           X
SI_DONE           X
SI_GO             X
SI_IE             X
SI_OFM            X
SI_OFP            X
SI_READ           X
SI_RESET          X
SI_WRITE          X

struct's

sidevice          X

   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:  *	@(#)sireg.h	1.1 (2.10BSD Berkeley) 12/1/86
   7:  */
   8: 
   9: /*
  10:  *	Definitions for Systems Industries 9500 controller.
  11:  */
  12: 
  13: /*
  14:  *	Controller registers and bits
  15:  */
  16: struct sidevice
  17: {
  18:     short   sicnr;      /* control register */
  19:     short   siwcr;      /* word count register */
  20:     short   sipcr;      /* port/cylinder address register */
  21:     short   sihsr;      /* head/sector address register */
  22:     caddr_t simar;      /* UNIBUS memory address register */
  23:     short   sierr;      /* error register */
  24:     short   sissr;      /* seek status register */
  25:     short   sisar;      /* seek address register */
  26:     short   sidbr;      /* data buffer register (unused) */
  27:     short   sicom;      /* communications register */
  28:     short   siscr;      /* shared computer option register */
  29: };
  30: 
  31: /* Other bits of sicnr */
  32: #define SI_OFP      0040000     /* offset+ */
  33: #define SI_OFM      0020000     /* offset- */
  34: #define SI_DONE     0000200     /* done */
  35: #define SI_IE       0000100     /* interrupt enable */
  36: #define SI_READ     0000004     /* read command */
  37: #define SI_WRITE    0000002     /* write command */
  38: #define SI_GO       0000001
  39: #define SI_RESET    0000000     /* logic master clear */
  40: #define SI_BITS     \
  41: "\10\10DONE\7IE\3READ\2WRITE\1GO"
  42: 
  43: /* sierr */
  44: #define SIERR_ERR   0100000     /* error */
  45: #define SIERR_CNT   0140000     /* contention error */
  46: #define SIERR_TIMO  0020000     /* timeout error */
  47: 
  48: #define SIERR_BITS \
  49: "\10\20ERR\17CNT\16TMO\15SEL\14FLT\13WLK\12BSE\11FMT\10SKI\
  50: \7AVE\6CRC\5VFY\4TMG\2OSE\1OSC"
  51: 
  52: /* sissr */
  53: #define SISSR_DONE  010     /* Seek complete */
  54: #define SISSR_ERR   004     /* Hardware seek error */
  55: #define SISSR_BUSY  002     /* Busy error */
  56: #define SISSR_NRDY  001     /* Not ready to seek */
  57: 
  58: #define SISSR_BITS \
  59: "\10\20DONE4\17ERR4\16BUSY4\15NRDY4\
  60: \14DONE3\13ERR3\12BUSY3\11NRDY3\
  61: \10DONE2\7ERR2\6BUSY2\5NRDY2\
  62: \4DONE1\3ERR1\2BUSY1\1NRDY1"