xref: /freebsd/sys/dev/ppbus/lpt.h (revision 0fca6ea1d4eea4c934cfff25ac9ee8ad6fe95583)
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  *	Id: lptreg.h,v 1.6 1997/02/22 09:36:52 peter Exp
36  *	From Id: nlpt.h,v 1.3 1999/01/10 12:04:54 nsouch Exp
37  */
38 
39 /*
40  * AT Parallel Port (for lineprinter)
41  * Interface port and bit definitions
42  * Written by William Jolitz 12/18/90
43  * Copyright (C) William Jolitz 1990
44  */
45 
46 #ifndef __LPT_H
47 #define	__LPT_H
48 
49 /* machine independent definitions, it shall only depend on the ppbus
50  * parallel port model */
51 
52 					/* PIN */
53 #define	LPS_NERR		0x08	/* 15  printer no error */
54 #define	LPS_SEL			0x10	/* 13  printer selected */
55 #define	LPS_OUT			0x20	/* 12  printer out of paper */
56 #define	LPS_NACK		0x40	/* 10  printer no ack of data */
57 #define	LPS_NBSY		0x80	/* 11  printer busy */
58 
59 #define	LPC_STB			0x01	/*  1  strobe data to printer */
60 #define	LPC_AUTOL		0x02	/* 14  automatic linefeed */
61 #define	LPC_NINIT		0x04	/* 16  initialize printer */
62 #define	LPC_SEL			0x08	/* 17  printer selected */
63 #define	LPC_ENA			0x10	/*  -  enable IRQ */
64 
65 #endif
66