This commit was manufactured by cvs2svn to create tag 'FreeBSD-release/1.0'.
[unix-history] / sys / i386 / isa / ic / ns16450.h
CommitLineData
15637ed4
RG
1/*-
2 * Copyright (c) 1991 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
78ed81a3 33 * from: @(#)ns16450.h 7.1 (Berkeley) 5/9/91
34 * $Id$
15637ed4
RG
35 */
36
37/*
38 * NS16450 UART registers
39 */
40
41#define com_data 0 /* data register (R/W) */
42#define com_dlbl 0 /* divisor latch low (W) */
43#define com_dlbh 1 /* divisor latch high (W) */
44#define com_ier 1 /* interrupt enable (W) */
45#define com_iir 2 /* interrupt identification (R) */
46#define com_lctl 3 /* line control register (R/W) */
47#define com_cfcr 3 /* line control register (R/W) */
48#define com_mcr 4 /* modem control register (R/W) */
49#define com_lsr 5 /* line status register (R/W) */
50#define com_msr 6 /* modem status register (R/W) */