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Annotation of sys/dev/ic/lptvar.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: lptvar.h,v 1.3 2002/03/14 01:26:54 millert Exp $ */
        !             2: /*     $NetBSD: lpt.c,v 1.42 1996/10/21 22:41:14 thorpej Exp $ */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1993, 1994 Charles Hannum.
        !             6:  * Copyright (c) 1990 William F. Jolitz, TeleMuse
        !             7:  * All rights reserved.
        !             8:  *
        !             9:  * Redistribution and use in source and binary forms, with or without
        !            10:  * modification, are permitted provided that the following conditions
        !            11:  * are met:
        !            12:  * 1. Redistributions of source code must retain the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer.
        !            14:  * 2. Redistributions in binary form must reproduce the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer in the
        !            16:  *    documentation and/or other materials provided with the distribution.
        !            17:  * 3. All advertising materials mentioning features or use of this software
        !            18:  *    must display the following acknowledgement:
        !            19:  *     This software is a component of "386BSD" developed by
        !            20:  *     William F. Jolitz, TeleMuse.
        !            21:  * 4. Neither the name of the developer nor the name "386BSD"
        !            22:  *    may be used to endorse or promote products derived from this software
        !            23:  *    without specific prior written permission.
        !            24:  *
        !            25:  * THIS SOFTWARE IS A COMPONENT OF 386BSD DEVELOPED BY WILLIAM F. JOLITZ
        !            26:  * AND IS INTENDED FOR RESEARCH AND EDUCATIONAL PURPOSES ONLY. THIS
        !            27:  * SOFTWARE SHOULD NOT BE CONSIDERED TO BE A COMMERCIAL PRODUCT.
        !            28:  * THE DEVELOPER URGES THAT USERS WHO REQUIRE A COMMERCIAL PRODUCT
        !            29:  * NOT MAKE USE OF THIS WORK.
        !            30:  *
        !            31:  * FOR USERS WHO WISH TO UNDERSTAND THE 386BSD SYSTEM DEVELOPED
        !            32:  * BY WILLIAM F. JOLITZ, WE RECOMMEND THE USER STUDY WRITTEN
        !            33:  * REFERENCES SUCH AS THE  "PORTING UNIX TO THE 386" SERIES
        !            34:  * (BEGINNING JANUARY 1991 "DR. DOBBS JOURNAL", USA AND BEGINNING
        !            35:  * JUNE 1991 "UNIX MAGAZIN", GERMANY) BY WILLIAM F. JOLITZ AND
        !            36:  * LYNNE GREER JOLITZ, AS WELL AS OTHER BOOKS ON UNIX AND THE
        !            37:  * ON-LINE 386BSD USER MANUAL BEFORE USE. A BOOK DISCUSSING THE INTERNALS
        !            38:  * OF 386BSD ENTITLED "386BSD FROM THE INSIDE OUT" WILL BE AVAILABLE LATE 1992.
        !            39:  *
        !            40:  * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER ``AS IS'' AND
        !            41:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            42:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            43:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE DEVELOPER BE LIABLE
        !            44:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            45:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            46:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            47:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            48:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            49:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            50:  * SUCH DAMAGE.
        !            51:  */
        !            52:
        !            53: #include <sys/timeout.h>
        !            54:
        !            55: struct lpt_softc {
        !            56:        struct device sc_dev;
        !            57:        void *sc_ih;
        !            58:        struct timeout sc_wakeup_tmo;
        !            59:
        !            60:        size_t sc_count;
        !            61:        struct buf *sc_inbuf;
        !            62:        u_int8_t *sc_cp;
        !            63:        int sc_spinmax;
        !            64:        bus_space_tag_t sc_iot; /* bus tag */
        !            65:        bus_space_handle_t sc_ioh; /* handle to the registers */
        !            66:        u_int8_t sc_state;
        !            67: #define        LPT_OPEN        0x01    /* device is open */
        !            68: #define        LPT_OBUSY       0x02    /* printer is busy doing output */
        !            69: #define        LPT_INIT        0x04    /* waiting to initialize for open */
        !            70:        u_int8_t sc_flags;
        !            71: #define        LPT_POLLED      0x10    /* configured for polling only */
        !            72: #define        LPT_AUTOLF      0x20    /* automatic LF on CR */
        !            73: #define        LPT_NOPRIME     0x40    /* don't prime on open */
        !            74: #define        LPT_NOINTR      0x80    /* do not use interrupt */
        !            75:        u_int8_t sc_control;
        !            76:        u_int8_t sc_laststatus;
        !            77: };
        !            78:
        !            79: int    lptintr(void *);
        !            80: int    lpt_port_test(bus_space_tag_t, bus_space_handle_t, bus_addr_t,
        !            81:            bus_size_t, u_int8_t, u_int8_t);
        !            82: void   lpt_attach_common(struct lpt_softc *);