Annotation of sys/dev/ic/lptreg.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: lptreg.h,v 1.4 2003/06/02 23:28:02 millert Exp $ */
2: /* $NetBSD: lptreg.h,v 1.4 1994/10/27 04:17:56 cgd Exp $ */
3:
4: /*-
5: * Copyright (c) 1990 The Regents of the University of California.
6: * All rights reserved.
7: *
8: * This code is derived from software contributed to Berkeley by
9: * William Jolitz.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. Neither the name of the University nor the names of its contributors
20: * may be used to endorse or promote products derived from this software
21: * without specific prior written permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33: * SUCH DAMAGE.
34: *
35: * @(#)lptreg.h 1.1 (Berkeley) 12/19/90
36: */
37:
38: /*
39: * AT Parallel Port (for lineprinter)
40: * Interface port and bit definitions
41: * Written by William Jolitz 12/18/90
42: * Copyright (C) William Jolitz 1990
43: */
44:
45: #define lpt_data 0 /* Data to/from printer (R/W) */
46:
47: #define lpt_status 1 /* Status of printer (R) */
48: #define LPS_NERR 0x08 /* printer no error */
49: #define LPS_SELECT 0x10 /* printer selected */
50: #define LPS_NOPAPER 0x20 /* printer out of paper */
51: #define LPS_NACK 0x40 /* printer no ack of data */
52: #define LPS_NBSY 0x80 /* printer no ack of data */
53:
54: #define lpt_control 2 /* Control printer (R/W) */
55: #define LPC_STROBE 0x01 /* strobe data to printer */
56: #define LPC_AUTOLF 0x02 /* automatic linefeed */
57: #define LPC_NINIT 0x04 /* initialize printer */
58: #define LPC_SELECT 0x08 /* printer selected */
59: #define LPC_IENABLE 0x10 /* printer out of paper */
60:
61: #define LPT_NPORTS 4
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