1 /* 2 * Copyright (c) 1982, 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 7.1 (Berkeley) 06/05/86 7 */ 8 9 /* 10 * DM-11 device register definitions. 11 */ 12 struct dmdevice { 13 short dmcsr; /* control status register */ 14 short dmlstat; /* line status register */ 15 short dmpad1[2]; 16 }; 17 18 /* bits in dm csr */ 19 #define DM_RF 0100000 /* ring flag */ 20 #define DM_CF 0040000 /* carrier flag */ 21 #define DM_CTS 0020000 /* clear to send */ 22 #define DM_SRF 0010000 /* secondary receive flag */ 23 #define DM_CS 0004000 /* clear scan */ 24 #define DM_CM 0002000 /* clear multiplexor */ 25 #define DM_MM 0001000 /* maintenance mode */ 26 #define DM_STP 0000400 /* step */ 27 #define DM_DONE 0000200 /* scanner is done */ 28 #define DM_IE 0000100 /* interrupt enable */ 29 #define DM_SE 0000040 /* scan enable */ 30 #define DM_BUSY 0000020 /* scan busy */ 31 32 /* bits in dm lsr */ 33 #define DML_RNG 0000200 /* ring */ 34 #define DML_CAR 0000100 /* carrier detect */ 35 #define DML_CTS 0000040 /* clear to send */ 36 #define DML_SR 0000020 /* secondary receive */ 37 #define DML_ST 0000010 /* secondary transmit */ 38 #define DML_RTS 0000004 /* request to send */ 39 #define DML_DTR 0000002 /* data terminal ready */ 40 #define DML_LE 0000001 /* line enable */ 41 42 #define DML_ON (DML_DTR|DML_RTS|DML_LE) 43 #define DML_OFF (DML_LE) 44