1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
|
/* $OpenBSD: wsemul_dumb.c,v 1.2 2002/03/14 01:27:03 millert Exp $ */
/* $NetBSD: wsemul_dumb.c,v 1.7 2000/01/05 11:19:36 drochner Exp $ */
/*
* Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christopher G. Demetriou
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/time.h>
#include <sys/malloc.h>
#include <sys/fcntl.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wsemulvar.h>
#include <dev/wscons/ascii.h>
void *wsemul_dumb_cnattach(const struct wsscreen_descr *, void *,
int, int, long);
void *wsemul_dumb_attach(int console, const struct wsscreen_descr *,
void *, int, int, void *, long);
void wsemul_dumb_output(void *cookie, const u_char *data, u_int count,
int);
int wsemul_dumb_translate(void *cookie, keysym_t, char **);
void wsemul_dumb_detach(void *cookie, u_int *crowp, u_int *ccolp);
void wsemul_dumb_resetop(void *, enum wsemul_resetops);
const struct wsemul_ops wsemul_dumb_ops = {
"dumb",
wsemul_dumb_cnattach,
wsemul_dumb_attach,
wsemul_dumb_output,
wsemul_dumb_translate,
wsemul_dumb_detach,
wsemul_dumb_resetop
};
struct wsemul_dumb_emuldata {
const struct wsdisplay_emulops *emulops;
void *emulcookie;
void *cbcookie;
u_int nrows, ncols, crow, ccol;
long defattr;
};
struct wsemul_dumb_emuldata wsemul_dumb_console_emuldata;
void *
wsemul_dumb_cnattach(type, cookie, ccol, crow, defattr)
const struct wsscreen_descr *type;
void *cookie;
int ccol, crow;
long defattr;
{
struct wsemul_dumb_emuldata *edp;
edp = &wsemul_dumb_console_emuldata;
edp->emulops = type->textops;
edp->emulcookie = cookie;
edp->nrows = type->nrows;
edp->ncols = type->ncols;
edp->crow = crow;
edp->ccol = ccol;
edp->defattr = defattr;
edp->cbcookie = NULL;
return (edp);
}
void *
wsemul_dumb_attach(console, type, cookie, ccol, crow, cbcookie, defattr)
int console;
const struct wsscreen_descr *type;
void *cookie;
int ccol, crow;
void *cbcookie;
long defattr;
{
struct wsemul_dumb_emuldata *edp;
if (console)
edp = &wsemul_dumb_console_emuldata;
else {
edp = malloc(sizeof *edp, M_DEVBUF, M_WAITOK);
edp->emulops = type->textops;
edp->emulcookie = cookie;
edp->nrows = type->nrows;
edp->ncols = type->ncols;
edp->crow = crow;
edp->ccol = ccol;
edp->defattr = defattr;
}
edp->cbcookie = cbcookie;
return (edp);
}
void
wsemul_dumb_output(cookie, data, count, kernel)
void *cookie;
const u_char *data;
u_int count;
int kernel; /* ignored */
{
struct wsemul_dumb_emuldata *edp = cookie;
u_char c;
int n;
/* XXX */
(*edp->emulops->cursor)(edp->emulcookie, 0, edp->crow, edp->ccol);
while (count-- > 0) {
c = *data++;
switch (c) {
case ASCII_BEL:
wsdisplay_emulbell(edp->cbcookie);
break;
case ASCII_BS:
if (edp->ccol > 0)
edp->ccol--;
break;
case ASCII_CR:
edp->ccol = 0;
break;
case ASCII_HT:
n = min(8 - (edp->ccol & 7),
edp->ncols - edp->ccol - 1);
(*edp->emulops->erasecols)(edp->emulcookie,
edp->crow, edp->ccol, n, edp->defattr);
edp->ccol += n;
break;
case ASCII_FF:
(*edp->emulops->eraserows)(edp->emulcookie, 0,
edp->nrows, edp->defattr);
edp->ccol = 0;
edp->crow = 0;
break;
case ASCII_VT:
if (edp->crow > 0)
edp->crow--;
break;
default:
(*edp->emulops->putchar)(edp->emulcookie, edp->crow,
edp->ccol, c, edp->defattr);
edp->ccol++;
/* if cur col is still on cur line, done. */
if (edp->ccol < edp->ncols)
break;
/* wrap the column around. */
edp->ccol = 0;
/* FALLTHRU */
case ASCII_LF:
/* if the cur line isn't the last, incr and leave. */
if (edp->crow < edp->nrows - 1) {
edp->crow++;
break;
}
n = 1; /* number of lines to scroll */
(*edp->emulops->copyrows)(edp->emulcookie, n, 0,
edp->nrows - n);
(*edp->emulops->eraserows)(edp->emulcookie,
edp->nrows - n, n, edp->defattr);
edp->crow -= n - 1;
break;
}
}
/* XXX */
(*edp->emulops->cursor)(edp->emulcookie, 1, edp->crow, edp->ccol);
}
int
wsemul_dumb_translate(cookie, in, out)
void *cookie;
keysym_t in;
char **out;
{
return (0);
}
void
wsemul_dumb_detach(cookie, crowp, ccolp)
void *cookie;
u_int *crowp, *ccolp;
{
struct wsemul_dumb_emuldata *edp = cookie;
*crowp = edp->crow;
*ccolp = edp->ccol;
if (edp != &wsemul_dumb_console_emuldata)
free(edp, M_DEVBUF);
}
void
wsemul_dumb_resetop(cookie, op)
void *cookie;
enum wsemul_resetops op;
{
struct wsemul_dumb_emuldata *edp = cookie;
switch (op) {
case WSEMUL_CLEARSCREEN:
(*edp->emulops->eraserows)(edp->emulcookie, 0, edp->nrows,
edp->defattr);
edp->ccol = edp->crow = 0;
(*edp->emulops->cursor)(edp->emulcookie, 1, 0, 0);
break;
default:
break;
}
}
|
