sys/dev/ic/lptvar.h

   1 /*      $NetBSD: lptvar.h,v 1.55 2008/02/22 20:53:58 dyoung Exp $       */
   2
   3 /*
   4  * Copyright (c) 1993, 1994 Charles M. Hannum.
   5  * Copyright (c) 1990 William F. Jolitz, TeleMuse
   6  * All rights reserved.
   7  *
   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 software is a component of "386BSD" developed by
  19  *      William F. Jolitz, TeleMuse.
  20  * 4. Neither the name of the developer nor the name "386BSD"
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS A COMPONENT OF 386BSD DEVELOPED BY WILLIAM F. JOLITZ
  25  * AND IS INTENDED FOR RESEARCH AND EDUCATIONAL PURPOSES ONLY. THIS
  26  * SOFTWARE SHOULD NOT BE CONSIDERED TO BE A COMMERCIAL PRODUCT.
  27  * THE DEVELOPER URGES THAT USERS WHO REQUIRE A COMMERCIAL PRODUCT
  28  * NOT MAKE USE OF THIS WORK.
  29  *
  30  * FOR USERS WHO WISH TO UNDERSTAND THE 386BSD SYSTEM DEVELOPED
  31  * BY WILLIAM F. JOLITZ, WE RECOMMEND THE USER STUDY WRITTEN
  32  * REFERENCES SUCH AS THE  "PORTING UNIX TO THE 386" SERIES
  33  * (BEGINNING JANUARY 1991 "DR. DOBBS JOURNAL", USA AND BEGINNING
  34  * JUNE 1991 "UNIX MAGAZIN", GERMANY) BY WILLIAM F. JOLITZ AND
  35  * LYNNE GREER JOLITZ, AS WELL AS OTHER BOOKS ON UNIX AND THE
  36  * ON-LINE 386BSD USER MANUAL BEFORE USE. A BOOK DISCUSSING THE INTERNALS
  37  * OF 386BSD ENTITLED "386BSD FROM THE INSIDE OUT" WILL BE AVAILABLE LATE 1992.
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE DEVELOPER ``AS IS'' AND
  40  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  42  * ARE DISCLAIMED.  IN NO EVENT SHALL THE DEVELOPER BE LIABLE
  43  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  44  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  45  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  46  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  47  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  48  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  49  * SUCH DAMAGE.
  50  */
  51
  52 /*
  53  * Device Driver for AT style parallel printer port
  54  */
  55
  56 #ifndef _LPT_VAR_H_
  57 #define _LPT_VAR_H_
  58
  59 #include <sys/callout.h>
  60
  61 struct lpt_softc {
  62         device_t sc_dev;
  63         void *sc_ih;
  64         callout_t sc_wakeup_ch;
  65         size_t sc_count;
  66         void *sc_sih;
  67         void *sc_inbuf;
  68         u_char *sc_cp;
  69         int sc_spinmax;
  70         bus_space_tag_t sc_iot;
  71         bus_space_handle_t sc_ioh;
  72         u_char sc_dev_ok;       /* device attached correctly */
  73         u_char sc_state;
  74 #define LPT_OPEN        0x01    /* device is open */
  75 #define LPT_OBUSY       0x02    /* printer is busy doing output */
  76 #define LPT_INIT        0x04    /* waiting to initialize for open */
  77         u_char sc_flags;
  78 #define LPT_AUTOLF      0x20    /* automatic LF on CR */
  79 #define LPT_NOPRIME     0x40    /* don't prime on open */
  80 #define LPT_NOINTR      0x80    /* do not use interrupt */
  81         u_char sc_control;
  82         u_char sc_laststatus;
  83 };
  84
  85 #define LPS_INVERT      (LPS_SELECT|LPS_NERR|LPS_NBSY|LPS_NACK)
  86 #define LPS_MASK        (LPS_SELECT|LPS_NERR|LPS_NBSY|LPS_NACK|LPS_NOPAPER)
  87 #define NOT_READY()     ((bus_space_read_1(iot, ioh, lpt_status) ^ LPS_INVERT) & LPS_MASK)
  88 #define NOT_READY_ERR() lptnotready(bus_space_read_1(iot, ioh, lpt_status), sc)
  89
  90 int lptnotready(u_char, struct lpt_softc *);
  91 void lptwakeup(void *arg);
  92 int lptpushbytes(struct lpt_softc *);
  93
  94 void lpt_attach_subr(struct lpt_softc *);
  95 int lpt_detach_subr(device_t, int);
  96 int lptintr(void *);
  97
  98 #endif /* _LPT_VAR_H_ */