ab36c13e4b
Dave Huang <khym@bga.com>, with added check for broken early versions of the 16650, taken from the Linux driver. This should be extended to use, for example, higher trigger levels for the bigger 16650 FIFO, and its capability for using a smaller divisor and thus higher speeds. But this patch is very useful for 16650 users already.
59 lines
2.7 KiB
C
59 lines
2.7 KiB
C
/* $NetBSD: st16650reg.h,v 1.1 1997/10/19 14:26:26 fvdl Exp $ */
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/*
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* Copyright (c) 1991 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ns16550.h 7.1 (Berkeley) 5/9/91
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*/
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/*
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* ST16650A UART registers
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*/
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#define com_data 0 /* data register (R/W) */
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#define com_dlbl 0 /* divisor latch low (W) */
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#define com_dlbh 1 /* divisor latch high (W) */
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#define com_ier 1 /* interrupt enable (W) */
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#define com_iir 2 /* interrupt identification (R) */
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#define com_fifo 2 /* FIFO control (W) */
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#define com_efr 2 /* Enhanced feature register (R/W) */
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#define com_lctl 3 /* line control register (R/W) */
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#define com_cfcr 3 /* line control register (R/W) */
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#define com_mcr 4 /* modem control register (R/W) */
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#define com_xon1 4 /* XON 1 character (R/W) */
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#define com_lsr 5 /* line status register (R/W) */
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#define com_xon2 5 /* XON 2 character (R/W) */
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#define com_msr 6 /* modem status register (R/W) */
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#define com_xoff1 6 /* XOFF 1 character (R/W) */
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#define com_scratch 7 /* scratch register (R/W) */
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#define com_xoff2 7 /* XOFF 2 character (R/W) */
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