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(ph, reg)
59 struct pcdisplay_handle *ph;
60 int reg;
61 {
62 bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
63 return (bus_space_read_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA));
64 }
65
66 static __inline void _pcdisplay_6845_write(ph, reg, val)
67 struct pcdisplay_handle *ph;
68 int reg;
69 u_int8_t val;
70 {
71 bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
72 bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA, val);
73 }
74
75 #define pcdisplay_6845_read(ph, reg) \
76 _pcdisplay_6845_read(ph, offsetof(struct reg_mc6845, reg))
77 #define pcdisplay_6845_write(ph, reg, val) \
78 _pcdisplay_6845_write(ph, offsetof(struct reg_mc6845, reg), val)
79
80 void pcdisplay_cursor_init(struct pcdisplayscreen *, int);
81 void pcdisplay_cursor(void *, int, int, int);
82 #if 0
83 unsigned int pcdisplay_mapchar_simple(void *, int);
84 #endif
85 int pcdisplay_mapchar(void *, int, unsigned int *);
86 void pcdisplay_putchar(void *, int, int, u_int, long);
87 void pcdisplay_copycols(void *, int, int, int,int);
88 void pcdisplay_erasecols(void *, int, int, int, long);
89 void pcdisplay_copyrows(void *, int, int, int);
90 void pcdisplay_eraserows(void *, int, int, long);
91 void pcdisplay_replaceattr(void *, long, long);
92 struct wsdisplay_char;
93 int pcdisplay_getwschar(struct pcdisplayscreen *, struct wsdisplay_char *);
94 int pcdisplay_putwschar(struct pcdisplayscreen *, struct wsdisplay_char *);
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