brreg.h

Macros

AE_DTYP           X
AE_T200           X
AE_T300           X
AE_T50            X
AE_T80            X
BRDS_BITS         X
BRDS_HNF          X
BRDS_SUFU         X
BRDS_SUOL         X
BRDS_SURDY        X
BRDS_SUSI         X
BRDS_SUWP         X
BRDS_TOE          X
BRER_ATE          X
BRER_BITS         X
BRER_BSE          X
BRER_DCE          X
BRER_DSE          X
BRER_DSKERR       X
BRER_EOP          X
BRER_FMTE         X
BRER_FUV          X
BRER_NXC          X
BRER_NXME         X
BRER_NXT          X
BRER_PROG         X
BRER_SBPE         X
BRER_SUBUSY       X
BRER_WCE          X
BRER_WPV          X
BR_AIE            X
BR_BITS           X
BR_ERR            X
BR_GO             X
BR_HDB            X
BR_HDR            X
BR_HE             X
BR_HSEEK          X
BR_IDE            X
BR_IDLE           X
BR_RCOM           X
BR_RDY            X
BR_RNS            X
BR_SEEK           X
BR_WCHK           X
BR_WCOM           X
BR_WNS            X
OFFM              X
OFFP              X
STBE              X
STBL              X

struct's

brdevice          X

   1: struct brdevice {
   2:     short brds;
   3:     short brer;
   4:     union {
   5:         short w;
   6:         char c[2];
   7:     } brcs;
   8:     short brwc;
   9:     caddr_t brba;
  10:     short brca;
  11:     short brda;
  12:     short brae;
  13: };
  14: 
  15: /* bits in brds */
  16: #define BRDS_SURDY  0100000     /* selected unit ready */
  17: #define BRDS_SUOL   0040000     /* selected unit on line */
  18: #define BRDS_TOE    0020000     /* selected unit BR */
  19: #define BRDS_HNF    0010000     /* header not found */
  20: #define BRDS_SUSI   0004000     /* selected unit seek incomplete */
  21: #define BRDS_SUFU   0001000     /* selected unit file unsafe */
  22: #define BRDS_SUWP   0000400     /* selected unit write protected */
  23: /* bits 7-0 are attention bits */
  24: #define BRDS_BITS   "\10\20SURDY\17SUOL\16BR\15HNF\14SUSI\12SUFU\11SUWP"
  25: 
  26: /* bits in brer */
  27: #define BRER_WPV    0100000     /* write protect violation */
  28: #define BRER_FUV    0040000     /* file unsafe violation */
  29: #define BRER_NXC    0020000     /* nonexistent cylinder */
  30: #define BRER_NXT    0010000     /* nonexistent track */
  31: #define BRER_SUBUSY 0004000     /* selected unit busy */
  32: #define BRER_PROG   0002000     /* program error */
  33: #define BRER_FMTE   0001000     /* format error */
  34: #define BRER_BSE    0000400     /* bad sector */
  35: #define BRER_ATE    0000200     /* aborted transfer error */
  36: #define BRER_DCE    0000100     /* data check error */
  37: #define BRER_DSE    0000040     /* data sync error */
  38: #define BRER_SBPE   0000020     /* system bad parity error */
  39: #define BRER_WCE    0000010     /* write check error */
  40: #define BRER_NXME   0000004     /* nonexistent memory */
  41: #define BRER_EOP    0000002     /* end of pack */
  42: #define BRER_DSKERR 0000001     /* disk error */
  43: #define BRER_BITS   \
  44: "\10\20WPV\17FUV\16NXC\15NXT\14SUBUSY\13PROG\12FMTE\11BSE\10ATE\
  45: \7DCE\6DSE\5SBPE\4WCE\3NXME\2EOP\1DSKERR"
  46: 
  47: /* bits in brcs */
  48: #define BR_ERR      0100000     /* error */
  49: #define BR_HE       0040000     /* hard error */
  50: #define BR_AIE      0020000     /* attention interrupt enable */
  51: #define BR_HDB      0010000     /* hold drive busy */
  52: #define BR_HDR      0004000     /* header */
  53: /* bits 10-8 are drive select */
  54: #define BR_RDY      0000200     /* ready */
  55: #define BR_IDE      0000100     /* interrupt on done (error) enable */
  56: /* bits 5-4 are the UNIBUS extension bits */
  57: /* bits 3-1 are the function */
  58: #define BR_GO       0000001     /* go */
  59: #define BR_BITS     "\10\20ERR\17HE\16AIE\15HDB\14HDR\10RDY\7IDE\1GO"
  60: 
  61: /* commands */
  62: #define BR_IDLE     0000000     /* idle */
  63: #define BR_WCOM     0000002     /* write */
  64: #define BR_RCOM     0000004     /* read */
  65: #define BR_WCHK     0000006     /* write check */
  66: #define BR_SEEK     0000010     /* seek */
  67: #define BR_WNS      0000012     /* write (no seek) */
  68: #define BR_HSEEK    0000014     /* home seek */
  69: #define BR_RNS      0000016     /* read (no seek) */
  70: 
  71: #define STBE        0000100     /* Strobe early */
  72: #define STBL        0000200     /* Strobe late */
  73: #define OFFP        0140000     /* Positive offset */
  74: #define OFFM        0100000     /* Negative offset */
  75: 
  76: /* Bits in br_ae */
  77: #define AE_DTYP     0007400     /* Disk type */
  78: #define AE_T50      0000400     /* T-50  drive */
  79: #define AE_T80      0001000     /* T-80  drive */
  80: #define AE_T200     0002000     /* T-200 drive */
  81: #define AE_T300     0004000     /* T-300 drive */