1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. 9 * 10 * Copyright (c) 1997, 1999 Nicolas Souchu 11 * All rights reserved. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * Distantly from : 35 * @(#)lptreg.h 1.1 (Berkeley) 12/19/90 36 * Id: lptreg.h,v 1.6 1997/02/22 09:36:52 peter Exp 37 * From Id: nlpt.h,v 1.3 1999/01/10 12:04:54 nsouch Exp 38 */ 39 40 /* 41 * AT Parallel Port (for lineprinter) 42 * Interface port and bit definitions 43 * Written by William Jolitz 12/18/90 44 * Copyright (C) William Jolitz 1990 45 */ 46 47 #ifndef __LPT_H 48 #define __LPT_H 49 50 /* machine independent definitions, it shall only depend on the ppbus 51 * parallel port model */ 52 53 /* PIN */ 54 #define LPS_NERR 0x08 /* 15 printer no error */ 55 #define LPS_SEL 0x10 /* 13 printer selected */ 56 #define LPS_OUT 0x20 /* 12 printer out of paper */ 57 #define LPS_NACK 0x40 /* 10 printer no ack of data */ 58 #define LPS_NBSY 0x80 /* 11 printer busy */ 59 60 #define LPC_STB 0x01 /* 1 strobe data to printer */ 61 #define LPC_AUTOL 0x02 /* 14 automatic linefeed */ 62 #define LPC_NINIT 0x04 /* 16 initialize printer */ 63 #define LPC_SEL 0x08 /* 17 printer selected */ 64 #define LPC_ENA 0x10 /* - enable IRQ */ 65 66 #endif 67