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/* $NetBSD: lptreg.h,v 1.4 1994/10/27 04:17:56 cgd Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)lptreg.h 1.1 (Berkeley) 12/19/90
*/
/*
* AT Parallel Port (for lineprinter)
* Interface port and bit definitions
* Written by William Jolitz 12/18/90
* Copyright (C) William Jolitz 1990
*/
#define lpt_data 0 /* Data to/from printer (R/W) */
#define lpt_status 1 /* Status of printer (R) */
#define LPS_NERR 0x08 /* printer no error */
#define LPS_SELECT 0x10 /* printer selected */
#define LPS_NOPAPER 0x20 /* printer out of paper */
#define LPS_NACK 0x40 /* printer no ack of data */
#define LPS_NBSY 0x80 /* printer no ack of data */
#define lpt_control 2 /* Control printer (R/W) */
#define LPC_STROBE 0x01 /* strobe data to printer */
#define LPC_AUTOLF 0x02 /* automatic linefeed */
#define LPC_NINIT 0x04 /* initialize printer */
#define LPC_SELECT 0x08 /* printer selected */
#define LPC_IENABLE 0x10 /* printer out of paper */
#define LPT_NPORTS 4
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