2.9BSD - /usr/src/sys/dev/Others/rx2reg.h

   1: struct  rx2device   {
   2:     short   rx2cs;          /* command and status register */
   3:     short   rx2db;          /* multipurpose register: */
   4: #define rx2ba   rx2db           /* 	bus address register */
   5: #define rx2ta   rx2db           /*	track address register */
   6: #define rx2sa   rx2db           /*	sector address register */
   7: #define rx2wc   rx2db           /*	word count register */
   8: #define rx2es   rx2db           /*	error and status register */
   9: };
  10: 
  11: /* bits in rx2cs */
  12: #define RX2_ERR     0100000     /* error */
  13: #define RX2_INIT    0040000     /* initialize */
  14: /* bits 13-12 are the extension bits */
  15: #define RX2_RX02    0004000     /* rx02 (read only) */
  16: /* bit 10 is unused (bit 9 is also unused in the standard rx211) */
  17: #define RX2_HD      0001000     /* DSD 480 head select */
  18: #define RX2_DD      0000400     /* double density */
  19: #define RX2_XREQ    0000200     /* transfer request */
  20: #define RX2_IE      0000100     /* interrupt enable */
  21: #define RX2_DONE    0000040     /* done */
  22: #define RX2_UNIT    0000020     /* unit select */
  23: /* bits 3-1 are the function code */
  24: #define RX2_GO      0000001     /* go */
  25: 
  26: /* function codes */
  27: #define RX2_FILL    0000000     /* fill buffer */
  28: #define RX2_EMPTY   0000002     /* empty */
  29: #define RX2_WSECT   0000004     /* write sector */
  30: #define RX2_RSECT   0000006     /* read sector */
  31: #define RX2_SMD     0000010     /* set media density */
  32: #define RX2_RDSTAT  0000012     /* read status */
  33: #define RX2_WDDSECT 0000014     /* write deleted data sector */
  34: #define RX2_RDEC    0000016     /* read error code */
  35: 
  36: #define RX2_BITS    \
  37: "\10\20ERR\17INIT\14RX02\12HD\11DD\10XREQ\7IE\6DONE\5UNIT1\1GO"
  38: 
  39: /* bits in rx2es */
  40: /* bits 15-12 are unused in the standard rx211 */
  41: #define RX2ES_IBMDD 0010000     /* DSD 480 IBM double density select */
  42: #define RX2ES_NXM   0004000     /* nonexistent memory */
  43: #define RX2ES_WCOVFL    0002000     /* word count overflow */
  44: /* bit 9 is unused in the standard rx211 */
  45: #define RX2ES_HD    0001000     /* DSD 480 head select */
  46: #define RX2ES_UNIT  0000400     /* unit select */
  47: #define RX2ES_RDY   0000200     /* ready */
  48: #define RX2ES_DDATA 0000100     /* deleted data */
  49: #define RX2ES_DD    0000040     /* double density */
  50: #define RX2ES_DENSERR   0000020     /* density error */
  51: #define RX2ES_ACLO  0000010     /* ac low */
  52: #define RX2ES_INITDONE  0000004     /* initialization done */
  53: /* bit 1 is unused in the standard rx211 */
  54: #define RX2ES_S1RDY 0000002     /* DSD 480 side 1 ready */
  55: #define RX2ES_CRC   0000001     /* crc error */
  56: #define RX2ES_BITS  \
  57: "\10\15IBMDD\14NXM\13WCOVFL\12HD\11UNIT1\10RDY\7DDATA\
  58: \6DDENS\5DENSERR\4ACLO\3INIT\2S1RDY\1CRC"
  59: 
  60: /* bits in rx2es1 */
  61: /* bits 15-8 contain the word count */
  62: /* bits 7-0 contain the error code */
  63: #define RX2ES1_D0NOHOME 0000010     /* drive 0 failed to see home on init */
  64: #define RX2ES1_D1NOHOME 0000020     /* drive 1 failed to see home on init */
  65: #define RX2ES1_XTRK 0000040     /* track number > 076 */
  66: #define RX2ES1_WRAP 0000050     /* found home before desired track */
  67: #define RX2ES1_HNF  0000070     /* header not found after 2 revs */
  68: #define RX2ES1_NSEP 0000110     /* up controller found not SEP clock */
  69: #define RX2ES1_NOPREAMB 0000120     /* preamble not found */
  70: #define RX2ES1_NOID 0000130     /* preamble found;ID burst timeout */
  71: #define RX2ES1_HNEQTRK  0000150     /* track reached doesn't match header */
  72: #define RX2ES1_XIDAM    0000160     /* up made to many attempts for IDAM */
  73: #define RX2ES1_NOAM 0000170     /* data AM timeout */
  74: #define RX2ES1_CRC  0000200     /* crc error reading disk sector */
  75: #define RX2ES1_OOPS 0000220     /* read/write electronics failed test */
  76: #define RX2ES1_WCOVFL   0000230     /* word count overflow */
  77: #define RX2ES1_DENSERR  0000240     /* density error */
  78: #define RX2ES1_BADKEY   0000250     /* bad key word for Set Media Density */
  79: 
  80: /* bits in rx2es4 */
  81: /* bits 15-8 contain the track address for header track address errors */
  82: #define RX2ES4_UNIT 0000200     /* unit select */
  83: #define RX2ES4_D1DENS   0000100     /* drive 1 density */
  84: #define RX2ES4_HEAD 0000040     /* head loaded */
  85: #define RX2ES4_D0DENS   0000020     /* drive 0 density */
  86: /* bits 3-1 are unused */
  87: #define RX2ES4_DD   0000001     /* diskette is double density */
  88: #define RX2ES4_BITS "\10\10DRIVE1\7D1HIDENS\6HEAD\5D0HIDENS\1DDENS"
  89: 
  90: #define b_seccnt    av_back
  91: #define b_state     b_active

Defined struct's

Defined macros