FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/lptvar.h

     /*      $OpenBSD: lptvar.h,v 1.4 2013/06/12 19:07:40 deraadt Exp $ */
     /*      $NetBSD: lpt.c,v 1.42 1996/10/21 22:41:14 thorpej Exp $ */
     
     /*
      * Copyright (c) 1993, 1994 Charles Hannum.
      * Copyright (c) 1990 William F. Jolitz, TeleMuse
      * 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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This software is a component of "386BSD" developed by 
     *      William F. Jolitz, TeleMuse.
     * 4. Neither the name of the developer nor the name "386BSD"
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS A COMPONENT OF 386BSD DEVELOPED BY WILLIAM F. JOLITZ 
     * AND IS INTENDED FOR RESEARCH AND EDUCATIONAL PURPOSES ONLY. THIS 
     * SOFTWARE SHOULD NOT BE CONSIDERED TO BE A COMMERCIAL PRODUCT. 
     * THE DEVELOPER URGES THAT USERS WHO REQUIRE A COMMERCIAL PRODUCT 
     * NOT MAKE USE OF THIS WORK.
     *
     * FOR USERS WHO WISH TO UNDERSTAND THE 386BSD SYSTEM DEVELOPED
     * BY WILLIAM F. JOLITZ, WE RECOMMEND THE USER STUDY WRITTEN 
     * REFERENCES SUCH AS THE  "PORTING UNIX TO THE 386" SERIES 
     * (BEGINNING JANUARY 1991 "DR. DOBBS JOURNAL", USA AND BEGINNING 
     * JUNE 1991 "UNIX MAGAZIN", GERMANY) BY WILLIAM F. JOLITZ AND 
     * LYNNE GREER JOLITZ, AS WELL AS OTHER BOOKS ON UNIX AND THE 
     * ON-LINE 386BSD USER MANUAL BEFORE USE. A BOOK DISCUSSING THE INTERNALS 
     * OF 386BSD ENTITLED "386BSD FROM THE INSIDE OUT" WILL BE AVAILABLE LATE 1992.
     *
     * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER ``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 DEVELOPER 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.
     */
    
    #include <sys/timeout.h>
    
    struct lpt_softc {
            struct device sc_dev;
            void *sc_ih;
            struct timeout sc_wakeup_tmo;
    
            size_t sc_count;
            struct buf *sc_inbuf;
            u_int8_t *sc_cp;
            int sc_spinmax;
            bus_space_tag_t sc_iot; /* bus tag */
            bus_space_handle_t sc_ioh; /* handle to the registers */
            u_int8_t sc_state;
    #define LPT_OPEN        0x01    /* device is open */
    #define LPT_OBUSY       0x02    /* printer is busy doing output */
    #define LPT_INIT        0x04    /* waiting to initialize for open */
            u_int8_t sc_flags;
    #define LPT_POLLED      0x10    /* configured for polling only */
    #define LPT_AUTOLF      0x20    /* automatic LF on CR */
    #define LPT_NOPRIME     0x40    /* don't prime on open */
    #define LPT_NOINTR      0x80    /* do not use interrupt */
            u_int8_t sc_control;
            u_int8_t sc_laststatus;
    };
    
    int     lptintr(void *);
    int     lpt_port_test(bus_space_tag_t, bus_space_handle_t, bus_addr_t,
                bus_size_t, u_int8_t, u_int8_t);
    void    lpt_attach_common(struct lpt_softc *);
    void    lpt_detach_common(struct lpt_softc *);
    int     lpt_activate(struct device *, int);

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