freebsd-dev/sys/dev/ppbus/lpt.h
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

69 lines
2.6 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* 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.
*
* Copyright (c) 1997, 1999 Nicolas Souchu
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* Distantly from :
* @(#)lptreg.h 1.1 (Berkeley) 12/19/90
* Id: lptreg.h,v 1.6 1997/02/22 09:36:52 peter Exp
* From Id: nlpt.h,v 1.3 1999/01/10 12:04:54 nsouch Exp
*
* $FreeBSD$
*/
/*
* AT Parallel Port (for lineprinter)
* Interface port and bit definitions
* Written by William Jolitz 12/18/90
* Copyright (C) William Jolitz 1990
*/
#ifndef __LPT_H
#define __LPT_H
/* machine independent definitions, it shall only depend on the ppbus
* parallel port model */
/* PIN */
#define LPS_NERR 0x08 /* 15 printer no error */
#define LPS_SEL 0x10 /* 13 printer selected */
#define LPS_OUT 0x20 /* 12 printer out of paper */
#define LPS_NACK 0x40 /* 10 printer no ack of data */
#define LPS_NBSY 0x80 /* 11 printer busy */
#define LPC_STB 0x01 /* 1 strobe data to printer */
#define LPC_AUTOL 0x02 /* 14 automatic linefeed */
#define LPC_NINIT 0x04 /* 16 initialize printer */
#define LPC_SEL 0x08 /* 17 printer selected */
#define LPC_ENA 0x10 /* - enable IRQ */
#endif