dmreg.h

Macros

DML_CAR           X
DML_CTS           X
DML_DTR           X
DML_LE            X
DML_OFF           X
DML_ON            X
DML_RNG           X
DML_RTS           X
DML_SR            X
DML_ST            X
DM_BUSY           X
DM_CF             X
DM_CM             X
DM_CS             X
DM_CTS            X
DM_DONE           X
DM_IE             X
DM_MM             X
DM_RF             X
DM_SE             X
DM_SRF            X
DM_STP            X
dmlst_h           X
dmlst_l           X
dmlstat           X

struct's

dmdevice          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:  *	@(#)dmreg.h	1.1 (Berkeley) 12/1/86
   7:  */
   8: 
   9: /*
  10:  * DM-11 device register definitions.
  11:  */
  12: struct dmdevice {
  13:     short   dmcsr;      /* control status register */
  14:     union   {               /* Q22:Need to access high byte independently */
  15:         short dmlst_w;
  16:         char dmlst_b[2];
  17:         } cs02un;
  18: #define dmlstat cs02un.dmlst_w        /* line status register */
  19: #define dmlst_l cs02un.dmlst_b[0]     /* low byte */
  20: #define dmlst_h cs02un.dmlst_b[1]     /* high byte */
  21:     short   dmpad1[2];
  22: };
  23: 
  24: /* bits in dm csr */
  25: #define DM_RF       0100000     /* ring flag */
  26: #define DM_CF       0040000     /* carrier flag */
  27: #define DM_CTS      0020000     /* clear to send */
  28: #define DM_SRF      0010000     /* secondary receive flag */
  29: #define DM_CS       0004000     /* clear scan */
  30: #define DM_CM       0002000     /* clear multiplexor */
  31: #define DM_MM       0001000     /* maintenance mode */
  32: #define DM_STP      0000400     /* step */
  33: #define DM_DONE     0000200     /* scanner is done */
  34: #define DM_IE       0000100     /* interrupt enable */
  35: #define DM_SE       0000040     /* scan enable */
  36: #define DM_BUSY     0000020     /* scan busy */
  37: 
  38: /* bits in dm lsr */
  39: #define DML_RNG     0000200     /* ring */
  40: #define DML_CAR     0000100     /* carrier detect */
  41: #define DML_CTS     0000040     /* clear to send */
  42: #define DML_SR      0000020     /* secondary receive */
  43: #define DML_ST      0000010     /* secondary transmit */
  44: #define DML_RTS     0000004     /* request to send */
  45: #define DML_DTR     0000002     /* data terminal ready */
  46: #define DML_LE      0000001     /* line enable */
  47: 
  48: #define DML_ON      (DML_DTR|DML_RTS|DML_LE)
  49: #define DML_OFF     (DML_LE)