smg.c revision 1.9 1 1.9 mrg /* $NetBSD: smg.c,v 1.9 1998/11/19 15:38:25 mrg Exp $ */
2 1.1 ragge /*
3 1.1 ragge * Copyright (c) 1998 Ludd, University of Lule}, Sweden.
4 1.1 ragge * All rights reserved.
5 1.1 ragge *
6 1.1 ragge * Redistribution and use in source and binary forms, with or without
7 1.1 ragge * modification, are permitted provided that the following conditions
8 1.1 ragge * are met:
9 1.1 ragge * 1. Redistributions of source code must retain the above copyright
10 1.1 ragge * notice, this list of conditions and the following disclaimer.
11 1.1 ragge * 2. Redistributions in binary form must reproduce the above copyright
12 1.1 ragge * notice, this list of conditions and the following disclaimer in the
13 1.1 ragge * documentation and/or other materials provided with the distribution.
14 1.1 ragge * 3. All advertising materials mentioning features or use of this software
15 1.1 ragge * must display the following acknowledgement:
16 1.6 ragge * This product includes software developed at Ludd, University of
17 1.6 ragge * Lule}, Sweden and its contributors.
18 1.1 ragge * 4. The name of the author may not be used to endorse or promote products
19 1.1 ragge * derived from this software without specific prior written permission
20 1.1 ragge *
21 1.1 ragge * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 1.1 ragge * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 1.1 ragge * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 1.1 ragge * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 1.1 ragge * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 1.1 ragge * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 1.1 ragge * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 1.1 ragge * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 1.1 ragge * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 1.1 ragge * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 1.1 ragge */
32 1.1 ragge
33 1.1 ragge #include <sys/param.h>
34 1.1 ragge #include <sys/device.h>
35 1.1 ragge #include <sys/systm.h>
36 1.1 ragge #include <sys/time.h>
37 1.1 ragge #include <sys/malloc.h>
38 1.1 ragge #include <sys/conf.h>
39 1.6 ragge #include <sys/kernel.h>
40 1.1 ragge
41 1.1 ragge #include <dev/cons.h>
42 1.1 ragge
43 1.1 ragge #include <dev/wscons/wsdisplayvar.h>
44 1.1 ragge #include <dev/wscons/wsconsio.h>
45 1.1 ragge #include <dev/wscons/wscons_callbacks.h>
46 1.1 ragge
47 1.1 ragge #include <machine/vsbus.h>
48 1.1 ragge #include <machine/sid.h>
49 1.1 ragge
50 1.1 ragge #include "lkc.h"
51 1.1 ragge
52 1.6 ragge #define SM_COLS 128 /* char width of screen */
53 1.6 ragge #define SM_ROWS 57 /* rows of char on screen */
54 1.6 ragge #define SM_CHEIGHT 15 /* lines a char consists of */
55 1.6 ragge #define SM_NEXTROW (SM_COLS * SM_CHEIGHT)
56 1.1 ragge
57 1.1 ragge static int smg_match __P((struct device *, struct cfdata *, void *));
58 1.1 ragge static void smg_attach __P((struct device *, struct device *, void *));
59 1.1 ragge
60 1.1 ragge struct smg_softc {
61 1.1 ragge struct device ss_dev;
62 1.1 ragge };
63 1.1 ragge
64 1.1 ragge struct cfattach smg_ca = {
65 1.1 ragge sizeof(struct smg_softc), smg_match, smg_attach,
66 1.1 ragge };
67 1.1 ragge
68 1.1 ragge static void smg_cursor __P((void *, int, int, int));
69 1.5 drochner unsigned int smg_mapchar __P((void *, int));
70 1.4 drochner static void smg_putchar __P((void *, int, int, u_int, long));
71 1.1 ragge static void smg_copycols __P((void *, int, int, int,int));
72 1.1 ragge static void smg_erasecols __P((void *, int, int, int, long));
73 1.1 ragge static void smg_copyrows __P((void *, int, int, int));
74 1.1 ragge static void smg_eraserows __P((void *, int, int, long));
75 1.1 ragge static int smg_alloc_attr __P((void *, int, int, int, long *));
76 1.1 ragge
77 1.1 ragge const struct wsdisplay_emulops smg_emulops = {
78 1.1 ragge smg_cursor,
79 1.5 drochner smg_mapchar,
80 1.4 drochner smg_putchar,
81 1.1 ragge smg_copycols,
82 1.1 ragge smg_erasecols,
83 1.1 ragge smg_copyrows,
84 1.1 ragge smg_eraserows,
85 1.1 ragge smg_alloc_attr
86 1.1 ragge };
87 1.1 ragge
88 1.1 ragge const struct wsscreen_descr smg_stdscreen = {
89 1.6 ragge "128x57", SM_COLS, SM_ROWS,
90 1.6 ragge &smg_emulops,
91 1.6 ragge 8, SM_CHEIGHT,
92 1.6 ragge WSSCREEN_UNDERLINE|WSSCREEN_REVERSE,
93 1.1 ragge };
94 1.1 ragge
95 1.1 ragge const struct wsscreen_descr *_smg_scrlist[] = {
96 1.1 ragge &smg_stdscreen,
97 1.1 ragge };
98 1.1 ragge
99 1.1 ragge const struct wsscreen_list smg_screenlist = {
100 1.1 ragge sizeof(_smg_scrlist) / sizeof(struct wsscreen_descr *),
101 1.1 ragge _smg_scrlist,
102 1.1 ragge };
103 1.1 ragge
104 1.6 ragge extern char q_font[];
105 1.6 ragge #define QCHAR(c) (c < 32 ? 32 : (c > 127 ? c - 66 : c - 32))
106 1.6 ragge #define QFONT(c,line) q_font[QCHAR(c) * 15 + line]
107 1.6 ragge #define SM_ADDR(row, col, line) \
108 1.6 ragge sm_addr[col + (row * SM_CHEIGHT * SM_COLS) + line * SM_COLS]
109 1.6 ragge
110 1.6 ragge
111 1.1 ragge static int smg_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
112 1.1 ragge static int smg_mmap __P((void *, off_t, int));
113 1.1 ragge static int smg_alloc_screen __P((void *, const struct wsscreen_descr *,
114 1.6 ragge void **, int *, int *, long *));
115 1.1 ragge static void smg_free_screen __P((void *, void *));
116 1.1 ragge static void smg_show_screen __P((void *, void *));
117 1.1 ragge static int smg_load_font __P((void *, void *, int, int, int, void *));
118 1.6 ragge static void smg_crsr_blink __P((void *));
119 1.1 ragge
120 1.1 ragge const struct wsdisplay_accessops smg_accessops = {
121 1.1 ragge smg_ioctl,
122 1.1 ragge smg_mmap,
123 1.1 ragge smg_alloc_screen,
124 1.1 ragge smg_free_screen,
125 1.1 ragge smg_show_screen,
126 1.1 ragge smg_load_font
127 1.1 ragge };
128 1.1 ragge
129 1.1 ragge struct smg_screen {
130 1.1 ragge int ss_curx;
131 1.1 ragge int ss_cury;
132 1.2 ragge u_char ss_image[SM_ROWS][SM_COLS]; /* Image of current screen */
133 1.6 ragge u_char ss_attr[SM_ROWS][SM_COLS]; /* Reversed etc... */
134 1.1 ragge };
135 1.1 ragge
136 1.2 ragge static struct smg_screen smg_conscreen;
137 1.2 ragge static struct smg_screen *curscr;
138 1.1 ragge
139 1.1 ragge int
140 1.1 ragge smg_match(parent, match, aux)
141 1.1 ragge struct device *parent;
142 1.1 ragge struct cfdata *match;
143 1.1 ragge void *aux;
144 1.1 ragge {
145 1.6 ragge struct vsbus_attach_args *va = aux;
146 1.1 ragge
147 1.8 ragge if (va->va_type != inr_vf)
148 1.1 ragge return 0;
149 1.1 ragge #ifdef DIAGNOSTIC
150 1.1 ragge if (sm_addr == 0)
151 1.1 ragge panic("smg: inconsistency in smg address mapping");
152 1.1 ragge #endif
153 1.1 ragge return 1;
154 1.1 ragge }
155 1.1 ragge
156 1.1 ragge void
157 1.1 ragge smg_attach(parent, self, aux)
158 1.1 ragge struct device *parent, *self;
159 1.1 ragge void *aux;
160 1.1 ragge {
161 1.1 ragge struct wsemuldisplaydev_attach_args aa;
162 1.1 ragge
163 1.1 ragge printf("\n");
164 1.2 ragge curscr = &smg_conscreen;
165 1.1 ragge aa.console = !(vax_confdata & 0x20);
166 1.1 ragge aa.scrdata = &smg_screenlist;
167 1.1 ragge aa.accessops = &smg_accessops;
168 1.6 ragge timeout(smg_crsr_blink, 0, hz/2);
169 1.1 ragge
170 1.1 ragge config_found(self, &aa, wsemuldisplaydevprint);
171 1.1 ragge }
172 1.1 ragge
173 1.6 ragge static u_char *cursor;
174 1.6 ragge static int cur_on;
175 1.6 ragge
176 1.6 ragge static void
177 1.6 ragge smg_crsr_blink(arg)
178 1.6 ragge void *arg;
179 1.6 ragge {
180 1.6 ragge if (cur_on)
181 1.6 ragge *cursor ^= 255;
182 1.6 ragge timeout(smg_crsr_blink, 0, hz/2);
183 1.6 ragge }
184 1.6 ragge
185 1.1 ragge void
186 1.1 ragge smg_cursor(id, on, row, col)
187 1.1 ragge void *id;
188 1.1 ragge int on, row, col;
189 1.1 ragge {
190 1.2 ragge struct smg_screen *ss = id;
191 1.2 ragge
192 1.6 ragge if (ss == curscr) {
193 1.6 ragge SM_ADDR(ss->ss_cury, ss->ss_curx, 14) =
194 1.6 ragge QFONT(ss->ss_image[ss->ss_cury][ss->ss_curx], 14);
195 1.6 ragge cursor = &SM_ADDR(row, col, 14);
196 1.6 ragge if ((cur_on = on))
197 1.6 ragge *cursor ^= 255;
198 1.6 ragge }
199 1.2 ragge ss->ss_curx = col;
200 1.2 ragge ss->ss_cury = row;
201 1.5 drochner }
202 1.5 drochner
203 1.5 drochner unsigned int
204 1.5 drochner smg_mapchar(id, uni)
205 1.5 drochner void *id;
206 1.5 drochner int uni;
207 1.5 drochner {
208 1.5 drochner if (uni < 256)
209 1.5 drochner return (uni);
210 1.5 drochner return (0);
211 1.1 ragge }
212 1.1 ragge
213 1.1 ragge static void
214 1.4 drochner smg_putchar(id, row, col, c, attr)
215 1.1 ragge void *id;
216 1.1 ragge int row, col;
217 1.4 drochner u_int c;
218 1.1 ragge long attr;
219 1.1 ragge {
220 1.2 ragge struct smg_screen *ss = id;
221 1.4 drochner int i;
222 1.1 ragge
223 1.4 drochner c &= 0xff;
224 1.4 drochner
225 1.4 drochner ss->ss_image[row][col] = c;
226 1.6 ragge ss->ss_attr[row][col] = attr;
227 1.2 ragge if (ss != curscr)
228 1.2 ragge return;
229 1.6 ragge for (i = 0; i < 15; i++) {
230 1.6 ragge unsigned char ch = QFONT(c, i);
231 1.6 ragge
232 1.6 ragge SM_ADDR(row, col, i) = (attr & WSATTR_REVERSE ? ~ch : ch);
233 1.6 ragge
234 1.6 ragge }
235 1.6 ragge if (attr & WSATTR_UNDERLINE)
236 1.6 ragge SM_ADDR(row, col, 14) ^= SM_ADDR(row, col, 14);
237 1.1 ragge }
238 1.1 ragge
239 1.1 ragge /*
240 1.1 ragge * copies columns inside a row.
241 1.1 ragge */
242 1.1 ragge static void
243 1.1 ragge smg_copycols(id, row, srccol, dstcol, ncols)
244 1.1 ragge void *id;
245 1.1 ragge int row, srccol, dstcol, ncols;
246 1.1 ragge {
247 1.2 ragge struct smg_screen *ss = id;
248 1.1 ragge int i;
249 1.1 ragge
250 1.2 ragge bcopy(&ss->ss_image[row][srccol], &ss->ss_image[row][dstcol], ncols);
251 1.6 ragge bcopy(&ss->ss_attr[row][srccol], &ss->ss_attr[row][dstcol], ncols);
252 1.2 ragge if (ss != curscr)
253 1.2 ragge return;
254 1.1 ragge for (i = 0; i < SM_CHEIGHT; i++)
255 1.6 ragge bcopy(&SM_ADDR(row,srccol, i), &SM_ADDR(row, dstcol, i),ncols);
256 1.1 ragge }
257 1.1 ragge
258 1.1 ragge /*
259 1.1 ragge * Erases a bunch of chars inside one row.
260 1.1 ragge */
261 1.1 ragge static void
262 1.1 ragge smg_erasecols(id, row, startcol, ncols, fillattr)
263 1.1 ragge void *id;
264 1.1 ragge int row, startcol, ncols;
265 1.1 ragge long fillattr;
266 1.1 ragge {
267 1.2 ragge struct smg_screen *ss = id;
268 1.1 ragge int i;
269 1.1 ragge
270 1.2 ragge bzero(&ss->ss_image[row][startcol], ncols);
271 1.6 ragge bzero(&ss->ss_attr[row][startcol], ncols);
272 1.2 ragge if (ss != curscr)
273 1.2 ragge return;
274 1.1 ragge for (i = 0; i < SM_CHEIGHT; i++)
275 1.6 ragge bzero(&SM_ADDR(row, startcol, i), ncols);
276 1.1 ragge }
277 1.1 ragge
278 1.1 ragge static void
279 1.1 ragge smg_copyrows(id, srcrow, dstrow, nrows)
280 1.1 ragge void *id;
281 1.1 ragge int srcrow, dstrow, nrows;
282 1.1 ragge {
283 1.2 ragge struct smg_screen *ss = id;
284 1.1 ragge int frows;
285 1.1 ragge
286 1.6 ragge bcopy(&ss->ss_image[srcrow][0], &ss->ss_image[dstrow][0],
287 1.6 ragge nrows * SM_COLS);
288 1.6 ragge bcopy(&ss->ss_attr[srcrow][0], &ss->ss_attr[dstrow][0],
289 1.6 ragge nrows * SM_COLS);
290 1.2 ragge if (ss != curscr)
291 1.2 ragge return;
292 1.1 ragge if (nrows > 25) {
293 1.1 ragge frows = nrows >> 1;
294 1.1 ragge if (srcrow > dstrow) {
295 1.1 ragge bcopy(&sm_addr[(srcrow * SM_NEXTROW)],
296 1.1 ragge &sm_addr[(dstrow * SM_NEXTROW)],
297 1.1 ragge frows * SM_NEXTROW);
298 1.1 ragge bcopy(&sm_addr[((srcrow + frows) * SM_NEXTROW)],
299 1.1 ragge &sm_addr[((dstrow + frows) * SM_NEXTROW)],
300 1.1 ragge (nrows - frows) * SM_NEXTROW);
301 1.1 ragge } else {
302 1.1 ragge bcopy(&sm_addr[((srcrow + frows) * SM_NEXTROW)],
303 1.1 ragge &sm_addr[((dstrow + frows) * SM_NEXTROW)],
304 1.1 ragge (nrows - frows) * SM_NEXTROW);
305 1.1 ragge bcopy(&sm_addr[(srcrow * SM_NEXTROW)],
306 1.1 ragge &sm_addr[(dstrow * SM_NEXTROW)],
307 1.1 ragge frows * SM_NEXTROW);
308 1.1 ragge }
309 1.1 ragge } else
310 1.1 ragge bcopy(&sm_addr[(srcrow * SM_NEXTROW)],
311 1.1 ragge &sm_addr[(dstrow * SM_NEXTROW)], nrows * SM_NEXTROW);
312 1.1 ragge }
313 1.1 ragge
314 1.1 ragge static void
315 1.1 ragge smg_eraserows(id, startrow, nrows, fillattr)
316 1.1 ragge void *id;
317 1.1 ragge int startrow, nrows;
318 1.1 ragge long fillattr;
319 1.1 ragge {
320 1.2 ragge struct smg_screen *ss = id;
321 1.1 ragge int frows;
322 1.1 ragge
323 1.6 ragge bzero(&ss->ss_image[startrow][0], nrows * SM_COLS);
324 1.6 ragge bzero(&ss->ss_attr[startrow][0], nrows * SM_COLS);
325 1.2 ragge if (ss != curscr)
326 1.2 ragge return;
327 1.1 ragge if (nrows > 25) {
328 1.1 ragge frows = nrows >> 1;
329 1.1 ragge bzero(&sm_addr[(startrow * SM_NEXTROW)], frows * SM_NEXTROW);
330 1.1 ragge bzero(&sm_addr[((startrow + frows) * SM_NEXTROW)],
331 1.1 ragge (nrows - frows) * SM_NEXTROW);
332 1.1 ragge } else
333 1.1 ragge bzero(&sm_addr[(startrow * SM_NEXTROW)], nrows * SM_NEXTROW);
334 1.1 ragge }
335 1.1 ragge
336 1.1 ragge static int
337 1.1 ragge smg_alloc_attr(id, fg, bg, flags, attrp)
338 1.1 ragge void *id;
339 1.1 ragge int fg, bg;
340 1.1 ragge int flags;
341 1.1 ragge long *attrp;
342 1.1 ragge {
343 1.6 ragge *attrp = flags;
344 1.1 ragge return 0;
345 1.1 ragge }
346 1.1 ragge
347 1.1 ragge int
348 1.1 ragge smg_ioctl(v, cmd, data, flag, p)
349 1.1 ragge void *v;
350 1.1 ragge u_long cmd;
351 1.1 ragge caddr_t data;
352 1.1 ragge int flag;
353 1.1 ragge struct proc *p;
354 1.1 ragge {
355 1.8 ragge struct wsdisplay_fbinfo fb;
356 1.8 ragge
357 1.8 ragge switch (cmd) {
358 1.8 ragge case WSDISPLAYIO_GTYPE:
359 1.8 ragge *(u_int *)data = WSDISPLAY_TYPE_PM_MONO;
360 1.8 ragge break;
361 1.8 ragge
362 1.8 ragge case WSDISPLAYIO_GINFO:
363 1.8 ragge fb.height = 864;
364 1.8 ragge fb.width = 1024;
365 1.8 ragge return copyout(&fb, data, sizeof(struct wsdisplay_fbinfo));
366 1.8 ragge
367 1.8 ragge
368 1.8 ragge default:
369 1.8 ragge return -1;
370 1.8 ragge }
371 1.8 ragge return 0;
372 1.1 ragge }
373 1.1 ragge
374 1.1 ragge static int
375 1.1 ragge smg_mmap(v, offset, prot)
376 1.1 ragge void *v;
377 1.1 ragge off_t offset;
378 1.1 ragge int prot;
379 1.1 ragge {
380 1.9 mrg if (offset >= SMSIZE || offset < 0)
381 1.8 ragge return -1;
382 1.8 ragge return (SMADDR + offset) >> CLSHIFT;
383 1.1 ragge }
384 1.1 ragge
385 1.1 ragge int
386 1.1 ragge smg_alloc_screen(v, type, cookiep, curxp, curyp, defattrp)
387 1.1 ragge void *v;
388 1.1 ragge const struct wsscreen_descr *type;
389 1.1 ragge void **cookiep;
390 1.1 ragge int *curxp, *curyp;
391 1.1 ragge long *defattrp;
392 1.1 ragge {
393 1.2 ragge *cookiep = malloc(sizeof(struct smg_screen), M_DEVBUF, M_WAITOK);
394 1.3 ragge bzero(*cookiep, sizeof(struct smg_screen));
395 1.3 ragge *curxp = *curyp = *defattrp = 0;
396 1.1 ragge return 0;
397 1.1 ragge }
398 1.1 ragge
399 1.1 ragge void
400 1.1 ragge smg_free_screen(v, cookie)
401 1.1 ragge void *v;
402 1.1 ragge void *cookie;
403 1.1 ragge {
404 1.1 ragge }
405 1.1 ragge
406 1.1 ragge void
407 1.1 ragge smg_show_screen(v, cookie)
408 1.1 ragge void *v;
409 1.1 ragge void *cookie;
410 1.1 ragge {
411 1.2 ragge struct smg_screen *ss = cookie;
412 1.2 ragge int row, col, line;
413 1.2 ragge
414 1.2 ragge if (ss == curscr)
415 1.2 ragge return;
416 1.2 ragge
417 1.6 ragge for (row = 0; row < SM_ROWS; row++)
418 1.8 ragge for (line = 0; line < SM_CHEIGHT; line++) {
419 1.6 ragge for (col = 0; col < SM_COLS; col++) {
420 1.6 ragge u_char s, c = ss->ss_image[row][col];
421 1.6 ragge
422 1.6 ragge if (c < 32)
423 1.6 ragge c = 32;
424 1.6 ragge s = QFONT(c, line);
425 1.6 ragge if (ss->ss_attr[row][col] & WSATTR_REVERSE)
426 1.6 ragge s ^= 255;
427 1.6 ragge SM_ADDR(row, col, line) = s;
428 1.2 ragge }
429 1.8 ragge if (ss->ss_attr[row][col] & WSATTR_UNDERLINE)
430 1.8 ragge SM_ADDR(row, col, line) = 255;
431 1.8 ragge }
432 1.6 ragge cursor = &sm_addr[(ss->ss_cury * SM_CHEIGHT * SM_COLS) + ss->ss_curx +
433 1.6 ragge ((SM_CHEIGHT - 1) * SM_COLS)];
434 1.2 ragge curscr = ss;
435 1.1 ragge }
436 1.1 ragge
437 1.1 ragge static int
438 1.1 ragge smg_load_font(v, cookie, first, num, stride, data)
439 1.1 ragge void *v;
440 1.1 ragge void *cookie;
441 1.1 ragge int first, num, stride;
442 1.1 ragge void *data;
443 1.1 ragge {
444 1.1 ragge return 0;
445 1.1 ragge }
446 1.1 ragge
447 1.1 ragge cons_decl(smg);
448 1.1 ragge
449 1.6 ragge #define WSCONSOLEMAJOR 68
450 1.1 ragge
451 1.1 ragge void
452 1.1 ragge smgcninit(cndev)
453 1.6 ragge struct consdev *cndev;
454 1.1 ragge {
455 1.1 ragge extern void lkccninit __P((struct consdev *));
456 1.1 ragge extern int lkccngetc __P((dev_t));
457 1.1 ragge /* Clear screen */
458 1.1 ragge blkclr(sm_addr, 128*864);
459 1.1 ragge
460 1.2 ragge curscr = &smg_conscreen;
461 1.2 ragge wsdisplay_cnattach(&smg_stdscreen, &smg_conscreen, 0, 0, 0);
462 1.1 ragge cn_tab->cn_dev = makedev(WSCONSOLEMAJOR, 0);
463 1.1 ragge #if NLKC
464 1.1 ragge lkccninit(cndev);
465 1.1 ragge wsdisplay_set_cons_kbd(lkccngetc, nullcnpollc);
466 1.1 ragge #endif
467 1.1 ragge }
468 1.1 ragge
469 1.1 ragge int smgprobe(void);
470 1.1 ragge int
471 1.1 ragge smgprobe()
472 1.1 ragge {
473 1.1 ragge switch (vax_boardtype) {
474 1.1 ragge case VAX_BTYP_410:
475 1.1 ragge case VAX_BTYP_420:
476 1.1 ragge case VAX_BTYP_43:
477 1.1 ragge if (vax_confdata & 0x20) /* doesn't use graphics console */
478 1.1 ragge break;
479 1.1 ragge if (sm_addr == 0) /* Haven't mapped graphic area */
480 1.1 ragge break;
481 1.1 ragge
482 1.1 ragge return 1;
483 1.1 ragge
484 1.1 ragge default:
485 1.1 ragge break;
486 1.1 ragge }
487 1.1 ragge return 0;
488 1.1 ragge }
489