sys/dev/ppbus/lpt.h

   1 /*-
   2  * Copyright (c) 1990 The Regents of the University of California.
   3  * All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * William Jolitz.
   7  *
   8  * Copyright (c) 1997, 1999 Nicolas Souchu
   9  * All rights reserved.
  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  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * Distantly from :
  33  *      @(#)lptreg.h      1.1 (Berkeley) 12/19/90
  34  *      Id: lptreg.h,v 1.6 1997/02/22 09:36:52 peter Exp
  35  *      From Id: nlpt.h,v 1.3 1999/01/10 12:04:54 nsouch Exp
  36  *
  37  * $FreeBSD$
  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