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Annotation of sys/dev/ic/lptvar.h, Revision 1.1.1.1

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 *);