grf.c revision 1.35 1 1.35 christos /* $NetBSD: grf.c,v 1.35 2005/12/11 12:16:54 christos Exp $ */
2 1.33 agc
3 1.33 agc /*
4 1.34 leo * Copyright (c) 1995 Leo Weppelman
5 1.33 agc * Copyright (c) 1990 The Regents of the University of California.
6 1.33 agc * All rights reserved.
7 1.33 agc *
8 1.33 agc * This code is derived from software contributed to Berkeley by
9 1.33 agc * the Systems Programming Group of the University of Utah Computer
10 1.33 agc * Science Department.
11 1.33 agc *
12 1.33 agc * Redistribution and use in source and binary forms, with or without
13 1.33 agc * modification, are permitted provided that the following conditions
14 1.33 agc * are met:
15 1.33 agc * 1. Redistributions of source code must retain the above copyright
16 1.33 agc * notice, this list of conditions and the following disclaimer.
17 1.33 agc * 2. Redistributions in binary form must reproduce the above copyright
18 1.33 agc * notice, this list of conditions and the following disclaimer in the
19 1.33 agc * documentation and/or other materials provided with the distribution.
20 1.33 agc * 3. Neither the name of the University nor the names of its contributors
21 1.33 agc * may be used to endorse or promote products derived from this software
22 1.33 agc * without specific prior written permission.
23 1.33 agc *
24 1.33 agc * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 1.33 agc * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 1.33 agc * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 1.33 agc * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 1.33 agc * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 1.33 agc * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 1.33 agc * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 1.33 agc * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 1.33 agc * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 1.33 agc * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 1.33 agc * SUCH DAMAGE.
35 1.33 agc *
36 1.33 agc * from: Utah $Hdr: grf.c 1.31 91/01/21$
37 1.33 agc *
38 1.33 agc * @(#)grf.c 7.8 (Berkeley) 5/7/91
39 1.33 agc */
40 1.1 leo
41 1.1 leo /*
42 1.1 leo * Copyright (c) 1988 University of Utah.
43 1.1 leo *
44 1.1 leo * This code is derived from software contributed to Berkeley by
45 1.1 leo * the Systems Programming Group of the University of Utah Computer
46 1.1 leo * Science Department.
47 1.1 leo *
48 1.1 leo * Redistribution and use in source and binary forms, with or without
49 1.1 leo * modification, are permitted provided that the following conditions
50 1.1 leo * are met:
51 1.1 leo * 1. Redistributions of source code must retain the above copyright
52 1.1 leo * notice, this list of conditions and the following disclaimer.
53 1.1 leo * 2. Redistributions in binary form must reproduce the above copyright
54 1.1 leo * notice, this list of conditions and the following disclaimer in the
55 1.1 leo * documentation and/or other materials provided with the distribution.
56 1.1 leo * 3. All advertising materials mentioning features or use of this software
57 1.1 leo * must display the following acknowledgement:
58 1.1 leo * This product includes software developed by the University of
59 1.1 leo * California, Berkeley and its contributors.
60 1.1 leo * 4. Neither the name of the University nor the names of its contributors
61 1.1 leo * may be used to endorse or promote products derived from this software
62 1.1 leo * without specific prior written permission.
63 1.1 leo *
64 1.1 leo * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
65 1.1 leo * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
66 1.1 leo * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
67 1.1 leo * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
68 1.1 leo * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
69 1.1 leo * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
70 1.1 leo * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
71 1.1 leo * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
72 1.1 leo * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
73 1.1 leo * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
74 1.1 leo * SUCH DAMAGE.
75 1.1 leo *
76 1.1 leo * from: Utah $Hdr: grf.c 1.31 91/01/21$
77 1.1 leo *
78 1.1 leo * @(#)grf.c 7.8 (Berkeley) 5/7/91
79 1.1 leo */
80 1.1 leo
81 1.1 leo /*
82 1.1 leo * Graphics display driver for the Atari
83 1.1 leo * This is the hardware-independent portion of the driver.
84 1.1 leo * Hardware access is through the grf_softc->g_mode routine.
85 1.1 leo */
86 1.32 lukem
87 1.32 lukem #include <sys/cdefs.h>
88 1.35 christos __KERNEL_RCSID(0, "$NetBSD: grf.c,v 1.35 2005/12/11 12:16:54 christos Exp $");
89 1.1 leo
90 1.1 leo #include <sys/param.h>
91 1.1 leo #include <sys/proc.h>
92 1.1 leo #include <sys/ioctl.h>
93 1.1 leo #include <sys/device.h>
94 1.1 leo #include <sys/file.h>
95 1.1 leo #include <sys/malloc.h>
96 1.1 leo #include <sys/conf.h>
97 1.1 leo #include <sys/systm.h>
98 1.1 leo #include <sys/vnode.h>
99 1.1 leo #include <sys/mman.h>
100 1.25 mrg
101 1.1 leo #include <machine/cpu.h>
102 1.25 mrg
103 1.25 mrg #include <uvm/uvm_extern.h>
104 1.25 mrg
105 1.1 leo #include <atari/atari/device.h>
106 1.1 leo #include <atari/dev/grfioctl.h>
107 1.1 leo #include <atari/dev/grfabs_reg.h>
108 1.1 leo #include <atari/dev/grfvar.h>
109 1.1 leo #include <atari/dev/itevar.h>
110 1.1 leo #include <atari/dev/viewioctl.h>
111 1.1 leo #include <atari/dev/viewvar.h>
112 1.1 leo
113 1.12 leo #include "grfcc.h"
114 1.12 leo #include "grfet.h"
115 1.12 leo #define NGRF (NGRFCC + NGRFET)
116 1.12 leo
117 1.1 leo #if NGRF > 0
118 1.1 leo
119 1.1 leo #include "ite.h"
120 1.1 leo #if NITE == 0
121 1.1 leo #define ite_on(u,f)
122 1.1 leo #define ite_off(u,f)
123 1.1 leo #define ite_reinit(d)
124 1.1 leo #endif
125 1.1 leo
126 1.1 leo int grfon __P((dev_t));
127 1.1 leo int grfoff __P((dev_t));
128 1.1 leo int grfsinfo __P((dev_t, struct grfdyninfo *));
129 1.1 leo
130 1.11 cgd int grfbusprint __P((void *auxp, const char *));
131 1.17 leo int grfbusmatch __P((struct device *, struct cfdata *, void *));
132 1.1 leo void grfbusattach __P((struct device *, struct device *, void *));
133 1.1 leo
134 1.1 leo /*
135 1.1 leo * pointers to grf drivers device structs
136 1.1 leo */
137 1.12 leo struct grf_softc *grfsp[NGRF]; /* XXX */
138 1.1 leo
139 1.29 thorpej CFATTACH_DECL(grfbus, sizeof(struct device),
140 1.29 thorpej grfbusmatch, grfbusattach, NULL, NULL);
141 1.8 thorpej
142 1.21 thorpej extern struct cfdriver grfbus_cd;
143 1.1 leo
144 1.27 gehenna dev_type_open(grfopen);
145 1.27 gehenna dev_type_close(grfclose);
146 1.27 gehenna dev_type_ioctl(grfioctl);
147 1.27 gehenna dev_type_mmap(grfmmap);
148 1.27 gehenna
149 1.27 gehenna const struct cdevsw grf_cdevsw = {
150 1.27 gehenna grfopen, grfclose, noread, nowrite, grfioctl,
151 1.31 jdolecek nostop, notty, nopoll, grfmmap, nokqfilter,
152 1.27 gehenna };
153 1.27 gehenna
154 1.1 leo /*
155 1.1 leo * only used in console init.
156 1.1 leo */
157 1.1 leo static struct cfdata *cfdata_gbus = NULL;
158 1.1 leo
159 1.1 leo int
160 1.17 leo grfbusmatch(pdp, cfp, auxp)
161 1.1 leo struct device *pdp;
162 1.17 leo struct cfdata *cfp;
163 1.17 leo void *auxp;
164 1.1 leo {
165 1.8 thorpej if(strcmp(auxp, grfbus_cd.cd_name))
166 1.1 leo return(0);
167 1.1 leo
168 1.12 leo if(atari_realconfig == 0)
169 1.12 leo cfdata_gbus = cfp;
170 1.1 leo return(1); /* Always there */
171 1.1 leo }
172 1.1 leo
173 1.1 leo void
174 1.1 leo grfbusattach(pdp, dp, auxp)
175 1.1 leo struct device *pdp, *dp;
176 1.1 leo void *auxp;
177 1.1 leo {
178 1.12 leo grf_auxp_t grf_auxp;
179 1.12 leo
180 1.12 leo grf_auxp.busprint = grfbusprint;
181 1.12 leo grf_auxp.from_bus_match = 1;
182 1.1 leo
183 1.12 leo if(dp == NULL) /* Console init */
184 1.12 leo atari_config_found(cfdata_gbus, NULL, (void*)&grf_auxp, grfbusprint);
185 1.12 leo else {
186 1.16 christos printf("\n");
187 1.12 leo config_found(dp, (void*)&grf_auxp, grfbusprint);
188 1.12 leo }
189 1.1 leo }
190 1.1 leo
191 1.1 leo int
192 1.1 leo grfbusprint(auxp, name)
193 1.12 leo void *auxp;
194 1.12 leo const char *name;
195 1.1 leo {
196 1.1 leo if(name == NULL)
197 1.1 leo return(UNCONF);
198 1.1 leo return(QUIET);
199 1.1 leo }
200 1.1 leo
201 1.1 leo /*ARGSUSED*/
202 1.1 leo int
203 1.35 christos grfopen(dev, flags, devtype, l)
204 1.1 leo dev_t dev;
205 1.1 leo int flags, devtype;
206 1.35 christos struct lwp *l;
207 1.1 leo {
208 1.1 leo struct grf_softc *gp;
209 1.1 leo
210 1.1 leo if (GRFUNIT(dev) >= NGRF)
211 1.1 leo return(ENXIO);
212 1.1 leo
213 1.1 leo gp = grfsp[GRFUNIT(dev)];
214 1.19 leo if (gp == NULL)
215 1.19 leo return(ENXIO);
216 1.1 leo
217 1.1 leo if ((gp->g_flags & GF_ALIVE) == 0)
218 1.1 leo return(ENXIO);
219 1.1 leo
220 1.1 leo if ((gp->g_flags & (GF_OPEN|GF_EXCLUDE)) == (GF_OPEN|GF_EXCLUDE))
221 1.1 leo return(EBUSY);
222 1.6 leo grf_viewsync(gp);
223 1.1 leo
224 1.1 leo return(0);
225 1.1 leo }
226 1.1 leo
227 1.1 leo /*ARGSUSED*/
228 1.1 leo int
229 1.35 christos grfclose(dev, flags, mode, l)
230 1.10 leo dev_t dev;
231 1.10 leo int flags;
232 1.10 leo int mode;
233 1.35 christos struct lwp *l;
234 1.1 leo {
235 1.1 leo struct grf_softc *gp;
236 1.1 leo
237 1.1 leo gp = grfsp[GRFUNIT(dev)];
238 1.1 leo (void)grfoff(dev);
239 1.1 leo gp->g_flags &= GF_ALIVE;
240 1.1 leo return(0);
241 1.1 leo }
242 1.1 leo
243 1.1 leo /*ARGSUSED*/
244 1.1 leo int
245 1.35 christos grfioctl(dev, cmd, data, flag, l)
246 1.1 leo dev_t dev;
247 1.1 leo u_long cmd;
248 1.1 leo int flag;
249 1.1 leo caddr_t data;
250 1.35 christos struct lwp *l;
251 1.1 leo {
252 1.1 leo struct grf_softc *gp;
253 1.1 leo int error;
254 1.27 gehenna extern const struct cdevsw view_cdevsw;
255 1.1 leo
256 1.1 leo gp = grfsp[GRFUNIT(dev)];
257 1.1 leo error = 0;
258 1.1 leo
259 1.1 leo switch (cmd) {
260 1.1 leo case OGRFIOCGINFO:
261 1.1 leo /* argl.. no bank-member.. */
262 1.1 leo bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo)-4);
263 1.1 leo break;
264 1.1 leo case GRFIOCGINFO:
265 1.1 leo bcopy((caddr_t)&gp->g_display, data, sizeof(struct grfinfo));
266 1.1 leo break;
267 1.1 leo case GRFIOCON:
268 1.1 leo error = grfon(dev);
269 1.1 leo break;
270 1.1 leo case GRFIOCOFF:
271 1.1 leo error = grfoff(dev);
272 1.1 leo break;
273 1.1 leo case GRFIOCSINFO:
274 1.1 leo error = grfsinfo(dev, (struct grfdyninfo *) data);
275 1.1 leo break;
276 1.1 leo case GRFGETVMODE:
277 1.7 leo return(gp->g_mode(gp, GM_GRFGETVMODE, data, 0, 0));
278 1.1 leo case GRFSETVMODE:
279 1.7 leo error = gp->g_mode(gp, GM_GRFSETVMODE, data, 0, 0);
280 1.1 leo if (error == 0 && gp->g_itedev)
281 1.1 leo ite_reinit(gp->g_itedev);
282 1.1 leo break;
283 1.1 leo case GRFGETNUMVM:
284 1.7 leo return(gp->g_mode(gp, GM_GRFGETNUMVM, data, 0, 0));
285 1.1 leo /*
286 1.1 leo * these are all hardware dependant, and have to be resolved
287 1.1 leo * in the respective driver.
288 1.1 leo */
289 1.1 leo case GRFIOCPUTCMAP:
290 1.1 leo case GRFIOCGETCMAP:
291 1.1 leo case GRFIOCSSPRITEPOS:
292 1.1 leo case GRFIOCGSPRITEPOS:
293 1.1 leo case GRFIOCSSPRITEINF:
294 1.1 leo case GRFIOCGSPRITEINF:
295 1.1 leo case GRFIOCGSPRITEMAX:
296 1.1 leo default:
297 1.1 leo /*
298 1.1 leo * check to see whether it's a command recognized by the
299 1.1 leo * view code.
300 1.1 leo */
301 1.27 gehenna return((*view_cdevsw.d_ioctl)(gp->g_viewdev, cmd, data, flag,
302 1.35 christos l));
303 1.1 leo error = EINVAL;
304 1.1 leo break;
305 1.1 leo
306 1.1 leo }
307 1.1 leo return(error);
308 1.1 leo }
309 1.1 leo
310 1.1 leo /*
311 1.1 leo * map the contents of a graphics display card into process'
312 1.1 leo * memory space.
313 1.1 leo */
314 1.23 simonb paddr_t
315 1.2 mycroft grfmmap(dev, off, prot)
316 1.23 simonb dev_t dev;
317 1.23 simonb off_t off;
318 1.23 simonb int prot;
319 1.1 leo {
320 1.5 leo struct grf_softc *gp;
321 1.5 leo struct grfinfo *gi;
322 1.22 thomas u_int vgabase, linbase;
323 1.5 leo
324 1.5 leo gp = grfsp[GRFUNIT(dev)];
325 1.5 leo gi = &gp->g_display;
326 1.18 leo
327 1.22 thomas vgabase = gi->gd_vgabase;
328 1.22 thomas linbase = gi->gd_linbase;
329 1.22 thomas
330 1.18 leo /*
331 1.18 leo * control registers
332 1.18 leo */
333 1.18 leo if (off >= 0 && off < gi->gd_regsize)
334 1.23 simonb return(((paddr_t)gi->gd_regaddr + off) >> PGSHIFT);
335 1.5 leo
336 1.5 leo /*
337 1.22 thomas * VGA memory
338 1.22 thomas */
339 1.22 thomas if (off >= vgabase && off < (vgabase + gi->gd_vgasize))
340 1.23 simonb return(((paddr_t)gi->gd_vgaaddr - vgabase + off) >> PGSHIFT);
341 1.22 thomas
342 1.22 thomas /*
343 1.5 leo * frame buffer
344 1.5 leo */
345 1.22 thomas if (off >= linbase && off < (linbase + gi->gd_fbsize))
346 1.23 simonb return(((paddr_t)gi->gd_fbaddr - linbase + off) >> PGSHIFT);
347 1.5 leo return(-1);
348 1.1 leo }
349 1.1 leo
350 1.1 leo int
351 1.1 leo grfon(dev)
352 1.1 leo dev_t dev;
353 1.1 leo {
354 1.1 leo struct grf_softc *gp;
355 1.1 leo
356 1.1 leo gp = grfsp[GRFUNIT(dev)];
357 1.1 leo
358 1.1 leo if (gp->g_flags & GF_GRFON)
359 1.1 leo return(0);
360 1.1 leo
361 1.1 leo gp->g_flags |= GF_GRFON;
362 1.1 leo if (gp->g_itedev != NODEV)
363 1.1 leo ite_off(gp->g_itedev, 3);
364 1.1 leo
365 1.7 leo return(gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVON : GM_GRFON,
366 1.7 leo NULL, 0, 0));
367 1.1 leo }
368 1.1 leo
369 1.1 leo int
370 1.1 leo grfoff(dev)
371 1.1 leo dev_t dev;
372 1.1 leo {
373 1.1 leo struct grf_softc *gp;
374 1.1 leo int error;
375 1.1 leo
376 1.1 leo gp = grfsp[GRFUNIT(dev)];
377 1.1 leo
378 1.1 leo if ((gp->g_flags & GF_GRFON) == 0)
379 1.1 leo return(0);
380 1.1 leo
381 1.1 leo gp->g_flags &= ~GF_GRFON;
382 1.7 leo error = gp->g_mode(gp, (dev & GRFOVDEV) ? GM_GRFOVOFF : GM_GRFOFF,
383 1.7 leo NULL, 0, 0);
384 1.1 leo
385 1.1 leo /*
386 1.1 leo * Closely tied together no X's
387 1.1 leo */
388 1.1 leo if (gp->g_itedev != NODEV)
389 1.1 leo ite_on(gp->g_itedev, 2);
390 1.1 leo
391 1.1 leo return(error);
392 1.1 leo }
393 1.1 leo
394 1.1 leo int
395 1.1 leo grfsinfo(dev, dyninfo)
396 1.1 leo dev_t dev;
397 1.1 leo struct grfdyninfo *dyninfo;
398 1.1 leo {
399 1.1 leo struct grf_softc *gp;
400 1.1 leo int error;
401 1.1 leo
402 1.1 leo gp = grfsp[GRFUNIT(dev)];
403 1.7 leo error = gp->g_mode(gp, GM_GRFCONFIG, dyninfo, 0, 0);
404 1.1 leo
405 1.1 leo /*
406 1.1 leo * Closely tied together no X's
407 1.1 leo */
408 1.1 leo if (gp->g_itedev != NODEV)
409 1.1 leo ite_reinit(gp->g_itedev);
410 1.1 leo return(error);
411 1.1 leo }
412 1.1 leo
413 1.1 leo /*
414 1.1 leo * Get the grf-info in sync with underlying view.
415 1.1 leo */
416 1.12 leo void
417 1.1 leo grf_viewsync(gp)
418 1.1 leo struct grf_softc *gp;
419 1.1 leo {
420 1.1 leo struct view_size vs;
421 1.1 leo bmap_t bm;
422 1.1 leo struct grfinfo *gi;
423 1.27 gehenna extern const struct cdevsw view_cdevsw;
424 1.1 leo
425 1.1 leo gi = &gp->g_display;
426 1.1 leo
427 1.27 gehenna (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCGBMAP, (caddr_t)&bm,
428 1.35 christos 0, NOLWP);
429 1.1 leo
430 1.1 leo gp->g_data = (caddr_t) 0xDeadBeaf; /* not particularly clean.. */
431 1.1 leo
432 1.1 leo gi->gd_fbaddr = bm.hw_address;
433 1.20 leo gi->gd_fbsize = bm.phys_mappable;
434 1.22 thomas gi->gd_linbase = bm.lin_base;
435 1.12 leo gi->gd_regaddr = bm.hw_regs;
436 1.12 leo gi->gd_regsize = bm.reg_size;
437 1.22 thomas gi->gd_vgaaddr = bm.vga_address;
438 1.22 thomas gi->gd_vgasize = bm.vga_mappable;
439 1.22 thomas gi->gd_vgabase = bm.vga_base;
440 1.1 leo
441 1.27 gehenna if((*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCGSIZE, (caddr_t)&vs, 0,
442 1.35 christos NOLWP)) {
443 1.1 leo /*
444 1.1 leo * fill in some default values...
445 1.1 leo * XXX: Should _never_ happen
446 1.1 leo */
447 1.1 leo vs.width = 640;
448 1.1 leo vs.height = 400;
449 1.3 leo vs.depth = 1;
450 1.1 leo }
451 1.1 leo gi->gd_colors = 1 << vs.depth;
452 1.1 leo gi->gd_planes = vs.depth;
453 1.1 leo
454 1.1 leo gi->gd_fbwidth = vs.width;
455 1.1 leo gi->gd_fbheight = vs.height;
456 1.1 leo gi->gd_dyn.gdi_fbx = 0;
457 1.1 leo gi->gd_dyn.gdi_fby = 0;
458 1.1 leo gi->gd_dyn.gdi_dwidth = vs.width;
459 1.1 leo gi->gd_dyn.gdi_dheight = vs.height;
460 1.1 leo gi->gd_dyn.gdi_dx = 0;
461 1.1 leo gi->gd_dyn.gdi_dy = 0;
462 1.1 leo }
463 1.1 leo
464 1.1 leo /*
465 1.1 leo * Change the mode of the display.
466 1.1 leo * Right now all we can do is grfon/grfoff.
467 1.1 leo * Return a UNIX error number or 0 for success.
468 1.1 leo */
469 1.1 leo /*ARGSUSED*/
470 1.12 leo int
471 1.1 leo grf_mode(gp, cmd, arg, a2, a3)
472 1.1 leo struct grf_softc *gp;
473 1.1 leo int cmd, a2, a3;
474 1.1 leo void *arg;
475 1.1 leo {
476 1.27 gehenna extern const struct cdevsw view_cdevsw;
477 1.27 gehenna
478 1.1 leo switch (cmd) {
479 1.1 leo case GM_GRFON:
480 1.1 leo /*
481 1.1 leo * Get in sync with view, ite might have changed it.
482 1.1 leo */
483 1.1 leo grf_viewsync(gp);
484 1.27 gehenna (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCDISPLAY,
485 1.35 christos NULL, 0, NOLWP);
486 1.1 leo return(0);
487 1.1 leo case GM_GRFOFF:
488 1.27 gehenna (*view_cdevsw.d_ioctl)(gp->g_viewdev, VIOCREMOVE,
489 1.35 christos NULL, 0, NOLWP);
490 1.1 leo return(0);
491 1.1 leo case GM_GRFCONFIG:
492 1.1 leo default:
493 1.1 leo break;
494 1.1 leo }
495 1.26 atatat return(EPASSTHROUGH);
496 1.1 leo }
497 1.1 leo #endif /* NGRF > 0 */
498