sys/dev/mvme/lptvar.h

   1 /*      $NetBSD: lptvar.h,v 1.4 2008/03/07 17:15:52 cube Exp $  */
   2
   3 /*-
   4  * Copyright (c) 1999, 2002 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Steve C. Woodford.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * Common front-end for mvme68k/mvme88k parallel printer ports
  34  */
  35
  36 #ifndef __mvme_lptvar_h
  37 #define __mvme_lptvar_h
  38
  39 #include <sys/callout.h>
  40
  41 struct lpt_funcs;
  42
  43
  44 struct lpt_softc {
  45         device_t                sc_dev;
  46         struct callout          sc_wakeup_ch;
  47         struct lpt_funcs        *sc_funcs;
  48         void                    *sc_arg;
  49         size_t                  sc_count;
  50         struct buf              *sc_inbuf;
  51         u_char                  *sc_cp;
  52         int                     sc_spinmax;
  53         u_char                  sc_state;
  54 #define LPT_OPEN        0x01    /* device is open */
  55 #define LPT_OBUSY       0x02    /* printer is busy doing output */
  56 #define LPT_INIT        0x04    /* waiting to initialize for open */
  57         u_char                  sc_flags;
  58 #define LPT_FAST_STROBE 0x10    /* Select 1.6uS strobe pulse */
  59 #define LPT_AUTOLF      0x20    /* automatic LF on CR */
  60 #define LPT_NOPRIME     0x40    /* don't prime on open */
  61 #define LPT_NOINTR      0x80    /* do not use interrupt */
  62
  63         /* Back-end specific stuff */
  64         bus_space_tag_t         sc_bust;
  65         bus_space_handle_t      sc_bush;
  66         int                     sc_ipl;
  67         u_char                  sc_icr;
  68         u_char                  sc_laststatus;
  69         struct evcnt            sc_evcnt;
  70 };
  71
  72
  73 struct lpt_funcs {
  74         void    (*lf_open)(struct lpt_softc *, int);
  75         void    (*lf_close)(struct lpt_softc *);
  76         void    (*lf_iprime)(struct lpt_softc *);
  77         void    (*lf_speed)(struct lpt_softc *, int);
  78         int     (*lf_notrdy)(struct lpt_softc *, int);
  79         void    (*lf_wrdata)(struct lpt_softc *, u_char);
  80 };
  81
  82 #define LPT_STROBE_FAST 0
  83 #define LPT_STROBE_SLOW 1
  84
  85 extern  void    lpt_attach_subr(struct lpt_softc *);
  86 extern  int     lpt_intr(struct lpt_softc *);
  87
  88 #endif  /* __mvme_lptvar_h */