sys/dev/ic/pcdisplayvar.h

   1 /* $NetBSD: pcdisplayvar.h,v 1.18 2006/05/14 21:42:27 elad Exp $ */
   2
   3 /*
   4  * Copyright (c) 1998
   5  *      Matthias Drochner.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  *
  27  */
  28
  29 #include "opt_pcdisplay.h"
  30
  31 struct pcdisplayscreen {
  32         struct pcdisplay_handle *hdl;
  33
  34         const struct wsscreen_descr *type;
  35
  36         int active;             /* currently displayed */
  37         u_int16_t *mem;         /* backing store for contents */
  38
  39         int cursoron;           /* cursor displayed? */
  40 #ifdef PCDISPLAY_SOFTCURSOR
  41         int cursortmp;          /* glyph & attribute behind software cursor */
  42 #endif
  43         int cursorcol, cursorrow;       /* current cursor position */
  44
  45         int dispoffset;         /* offset of displayed area in video mem */
  46         int visibleoffset;
  47 };
  48
  49 struct pcdisplay_handle {
  50         bus_space_tag_t ph_iot, ph_memt;
  51         bus_space_handle_t ph_ioh_6845, ph_memh;
  52 };
  53
  54 static __inline u_int8_t _pcdisplay_6845_read(struct pcdisplay_handle *, int);
  55 static __inline void _pcdisplay_6845_write(struct pcdisplay_handle *, int,
  56                                          u_int8_t);
  57
  58 static __inline u_int8_t _pcdisplay_6845_read(struct pcdisplay_handle *ph, int reg)
  59 {
  60         bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
  61         return (bus_space_read_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA));
  62 }
  63
  64 static __inline void _pcdisplay_6845_write(struct pcdisplay_handle *ph,
  65                                         int reg, uint8_t val)
  66 {
  67         bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
  68         bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA, val);
  69 }
  70
  71 #define pcdisplay_6845_read(ph, reg) \
  72         _pcdisplay_6845_read(ph, offsetof(struct reg_mc6845, reg))
  73 #define pcdisplay_6845_write(ph, reg, val) \
  74         _pcdisplay_6845_write(ph, offsetof(struct reg_mc6845, reg), val)
  75
  76 void    pcdisplay_cursor_init(struct pcdisplayscreen *, int);
  77 void    pcdisplay_cursor(void *, int, int, int);
  78 #if 0
  79 unsigned int pcdisplay_mapchar_simple(void *, int);
  80 #endif
  81 int     pcdisplay_mapchar(void *, int, unsigned int *);
  82 void    pcdisplay_putchar(void *, int, int, u_int, long);
  83 void    pcdisplay_copycols(void *, int, int, int,int);
  84 void    pcdisplay_erasecols(void *, int, int, int, long);
  85 void    pcdisplay_copyrows(void *, int, int, int);
  86 void    pcdisplay_eraserows(void *, int, int, long);
  87 void    pcdisplay_replaceattr(void *, long, long);
  88 struct wsdisplay_char;
  89 int     pcdisplay_getwschar(struct pcdisplayscreen *, struct wsdisplay_char *);
  90 int     pcdisplay_putwschar(struct pcdisplayscreen *, struct wsdisplay_char *);