1 /* $NetBSD: pcdisplayvar.h,v 1.20 2014/11/12 03:12:35 christos 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 #ifdef _KERNEL_OPT
30 #include "opt_pcdisplay.h"
31 #endif
32
33 struct pcdisplayscreen {
34 struct pcdisplay_handle *hdl;
35
36 const struct wsscreen_descr *type;
37
38 int active; /* currently displayed */
39 u_int16_t *mem; /* backing store for contents */
40
41 int cursoron; /* cursor displayed? */
42 #ifdef PCDISPLAY_SOFTCURSOR
43 int cursortmp; /* glyph & attribute behind software cursor */
44 #endif
45 int cursorcol, cursorrow; /* current cursor position */
46
47 int dispoffset; /* offset of displayed area in video mem */
48 int visibleoffset;
49 };
50
51 struct pcdisplay_handle {
52 bus_space_tag_t ph_iot, ph_memt;
53 bus_space_handle_t ph_ioh_6845, ph_memh;
54 };
55
56 static __inline u_int8_t _pcdisplay_6845_read(struct pcdisplay_handle *, int);
57 static __inline void _pcdisplay_6845_write(struct pcdisplay_handle *, int,
58 u_int8_t);
59
_pcdisplay_6845_read(struct pcdisplay_handle * ph,int reg)60 static __inline u_int8_t _pcdisplay_6845_read(struct pcdisplay_handle *ph, 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
_pcdisplay_6845_write(struct pcdisplay_handle * ph,int reg,uint8_t val)66 static __inline void _pcdisplay_6845_write(struct pcdisplay_handle *ph,
67 int reg, uint8_t val)
68 {
69 bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_INDEX, reg);
70 bus_space_write_1(ph->ph_iot, ph->ph_ioh_6845, MC6845_DATA, val);
71 }
72
73 #define pcdisplay_6845_read(ph, reg) \
74 _pcdisplay_6845_read(ph, offsetof(struct reg_mc6845, reg))
75 #define pcdisplay_6845_write(ph, reg, val) \
76 _pcdisplay_6845_write(ph, offsetof(struct reg_mc6845, reg), val)
77
78 void pcdisplay_cursor_init(struct pcdisplayscreen *, int);
79 void pcdisplay_cursor(void *, int, int, int);
80 #if 0
81 unsigned int pcdisplay_mapchar_simple(void *, int);
82 #endif
83 int pcdisplay_mapchar(void *, int, unsigned int *);
84 void pcdisplay_putchar(void *, int, int, u_int, long);
85 void pcdisplay_copycols(void *, int, int, int,int);
86 void pcdisplay_erasecols(void *, int, int, int, long);
87 void pcdisplay_copyrows(void *, int, int, int);
88 void pcdisplay_eraserows(void *, int, int, long);
89 void pcdisplay_replaceattr(void *, long, long);
90 struct wsdisplay_char;
91 int pcdisplay_getwschar(struct pcdisplayscreen *, struct wsdisplay_char *);
92 int pcdisplay_putwschar(struct pcdisplayscreen *, struct wsdisplay_char *);
93