1*29295d1cSmillert /* $OpenBSD: ns16450reg.h,v 1.3 2003/06/02 23:28:02 millert Exp $ */ 2df930be7Sderaadt /* $NetBSD: ns16450reg.h,v 1.3 1994/10/27 04:18:42 cgd Exp $ */ 3df930be7Sderaadt 4df930be7Sderaadt /*- 5df930be7Sderaadt * Copyright (c) 1991 The Regents of the University of California. 6df930be7Sderaadt * All rights reserved. 7df930be7Sderaadt * 8df930be7Sderaadt * Redistribution and use in source and binary forms, with or without 9df930be7Sderaadt * modification, are permitted provided that the following conditions 10df930be7Sderaadt * are met: 11df930be7Sderaadt * 1. Redistributions of source code must retain the above copyright 12df930be7Sderaadt * notice, this list of conditions and the following disclaimer. 13df930be7Sderaadt * 2. Redistributions in binary form must reproduce the above copyright 14df930be7Sderaadt * notice, this list of conditions and the following disclaimer in the 15df930be7Sderaadt * documentation and/or other materials provided with the distribution. 16*29295d1cSmillert * 3. Neither the name of the University nor the names of its contributors 17df930be7Sderaadt * may be used to endorse or promote products derived from this software 18df930be7Sderaadt * without specific prior written permission. 19df930be7Sderaadt * 20df930be7Sderaadt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21df930be7Sderaadt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22df930be7Sderaadt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23df930be7Sderaadt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24df930be7Sderaadt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25df930be7Sderaadt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26df930be7Sderaadt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27df930be7Sderaadt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28df930be7Sderaadt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29df930be7Sderaadt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30df930be7Sderaadt * SUCH DAMAGE. 31df930be7Sderaadt * 32df930be7Sderaadt * @(#)ns16450.h 7.1 (Berkeley) 5/9/91 33df930be7Sderaadt */ 34df930be7Sderaadt 35df930be7Sderaadt /* 36df930be7Sderaadt * NS16450 UART registers 37df930be7Sderaadt */ 38df930be7Sderaadt 39df930be7Sderaadt #define com_data 0 /* data register (R/W) */ 40df930be7Sderaadt #define com_dlbl 0 /* divisor latch low (W) */ 41df930be7Sderaadt #define com_dlbh 1 /* divisor latch high (W) */ 42df930be7Sderaadt #define com_ier 1 /* interrupt enable (W) */ 43df930be7Sderaadt #define com_iir 2 /* interrupt identification (R) */ 44df930be7Sderaadt #define com_lctl 3 /* line control register (R/W) */ 45df930be7Sderaadt #define com_cfcr 3 /* line control register (R/W) */ 46df930be7Sderaadt #define com_mcr 4 /* modem control register (R/W) */ 47df930be7Sderaadt #define com_lsr 5 /* line status register (R/W) */ 48df930be7Sderaadt #define com_msr 6 /* modem status register (R/W) */ 49