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Annotation of Net2/arch/i386/isa/lptreg.h, revision 1.1.1.2

1.1       root        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:  *
1.1.1.2 ! root        8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. All advertising materials mentioning features or use of this software
        !            17:  *    must display the following acknowledgement:
        !            18:  *      This product includes software developed by the University of
        !            19:  *      California, Berkeley and its contributors.
        !            20:  * 4. Neither the name of the University nor the names of its contributors
        !            21:  *    may be used to endorse or promote products derived from this software
        !            22:  *    without specific prior written permission.
1.1       root       23:  *
1.1.1.2 ! root       24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            34:  * SUCH DAMAGE.
        !            35:  *
        !            36:  *      from: @(#)lptreg.h     1.1 (Berkeley) 12/19/90
        !            37:  *     lptreg.h,v 1.2 1993/05/22 08:01:32 cgd Exp
1.1       root       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: #define lpt_data       0       /* Data to/from printer (R/W) */
                     48: 
                     49: #define lpt_status     1       /* Status of printer (R) */
                     50: #define        LPS_NERR                0x08    /* printer no error */
                     51: #define        LPS_SEL                 0x10    /* printer selected */
                     52: #define        LPS_OUT                 0x20    /* printer out of paper */
                     53: #define        LPS_NACK                0x40    /* printer no ack of data */
                     54: #define        LPS_NBSY                0x80    /* printer no ack of data */
                     55: 
                     56: #define lpt_control    2       /* Control printer (R/W) */
                     57: #define        LPC_STB                 0x01    /* strobe data to printer */
                     58: #define        LPC_AUTOL               0x02    /* automatic linefeed */
                     59: #define        LPC_NINIT               0x04    /* initialize printer */
                     60: #define        LPC_SEL                 0x08    /* printer selected */
                     61: #define        LPC_ENA                 0x10    /* printer out of paper */

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