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23#include <linux/fb.h>
24#include <linux/device.h>
25#include <linux/uaccess.h>
26#include <linux/platform_device.h>
27#include <linux/mm.h>
28#include <linux/omapfb.h>
29#include <linux/vmalloc.h>
30#include <linux/export.h>
31#include <linux/sizes.h>
32
33#include <video/omapdss.h>
34#include <video/omapvrfb.h>
35
36#include "omapfb.h"
37
38static u8 get_mem_idx(struct omapfb_info *ofbi)
39{
40 if (ofbi->id == ofbi->region->id)
41 return 0;
42
43 return OMAPFB_MEM_IDX_ENABLED | ofbi->region->id;
44}
45
46static struct omapfb2_mem_region *get_mem_region(struct omapfb_info *ofbi,
47 u8 mem_idx)
48{
49 struct omapfb2_device *fbdev = ofbi->fbdev;
50
51 if (mem_idx & OMAPFB_MEM_IDX_ENABLED)
52 mem_idx &= OMAPFB_MEM_IDX_MASK;
53 else
54 mem_idx = ofbi->id;
55
56 if (mem_idx >= fbdev->num_fbs)
57 return NULL;
58
59 return &fbdev->regions[mem_idx];
60}
61
62static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
63{
64 struct omapfb_info *ofbi = FB2OFB(fbi);
65 struct omapfb2_device *fbdev = ofbi->fbdev;
66 struct omap_overlay *ovl;
67 struct omap_overlay_info old_info;
68 struct omapfb2_mem_region *old_rg, *new_rg;
69 int r = 0;
70
71 DBG("omapfb_setup_plane\n");
72
73 if (ofbi->num_overlays == 0) {
74 r = -EINVAL;
75 goto out;
76 }
77
78
79 ovl = ofbi->overlays[0];
80
81 old_rg = ofbi->region;
82 new_rg = get_mem_region(ofbi, pi->mem_idx);
83 if (!new_rg) {
84 r = -EINVAL;
85 goto out;
86 }
87
88
89 if (old_rg->id < new_rg->id) {
90 omapfb_get_mem_region(old_rg);
91 omapfb_get_mem_region(new_rg);
92 } else if (new_rg->id < old_rg->id) {
93 omapfb_get_mem_region(new_rg);
94 omapfb_get_mem_region(old_rg);
95 } else
96 omapfb_get_mem_region(old_rg);
97
98 if (pi->enabled && !new_rg->size) {
99
100
101
102
103 r = -EINVAL;
104 goto put_mem;
105 }
106
107 ovl->get_overlay_info(ovl, &old_info);
108
109 if (old_rg != new_rg) {
110 ofbi->region = new_rg;
111 set_fb_fix(fbi);
112 }
113
114 if (!pi->enabled) {
115 r = ovl->disable(ovl);
116 if (r)
117 goto undo;
118 }
119
120 if (pi->enabled) {
121 r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y,
122 pi->out_width, pi->out_height);
123 if (r)
124 goto undo;
125 } else {
126 struct omap_overlay_info info;
127
128 ovl->get_overlay_info(ovl, &info);
129
130 info.pos_x = pi->pos_x;
131 info.pos_y = pi->pos_y;
132 info.out_width = pi->out_width;
133 info.out_height = pi->out_height;
134
135 r = ovl->set_overlay_info(ovl, &info);
136 if (r)
137 goto undo;
138 }
139
140 if (ovl->manager) {
141 r = ovl->manager->apply(ovl->manager);
142 if (r)
143 goto undo;
144 }
145
146 if (pi->enabled) {
147 r = ovl->enable(ovl);
148 if (r)
149 goto undo;
150 }
151
152
153 if (old_rg->id > new_rg->id) {
154 omapfb_put_mem_region(old_rg);
155 omapfb_put_mem_region(new_rg);
156 } else if (new_rg->id > old_rg->id) {
157 omapfb_put_mem_region(new_rg);
158 omapfb_put_mem_region(old_rg);
159 } else
160 omapfb_put_mem_region(old_rg);
161
162 return 0;
163
164 undo:
165 if (old_rg != new_rg) {
166 ofbi->region = old_rg;
167 set_fb_fix(fbi);
168 }
169
170 ovl->set_overlay_info(ovl, &old_info);
171 put_mem:
172
173 if (old_rg->id > new_rg->id) {
174 omapfb_put_mem_region(old_rg);
175 omapfb_put_mem_region(new_rg);
176 } else if (new_rg->id > old_rg->id) {
177 omapfb_put_mem_region(new_rg);
178 omapfb_put_mem_region(old_rg);
179 } else
180 omapfb_put_mem_region(old_rg);
181 out:
182 dev_err(fbdev->dev, "setup_plane failed\n");
183
184 return r;
185}
186
187static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
188{
189 struct omapfb_info *ofbi = FB2OFB(fbi);
190
191 if (ofbi->num_overlays == 0) {
192 memset(pi, 0, sizeof(*pi));
193 } else {
194 struct omap_overlay *ovl;
195 struct omap_overlay_info ovli;
196
197 ovl = ofbi->overlays[0];
198 ovl->get_overlay_info(ovl, &ovli);
199
200 pi->pos_x = ovli.pos_x;
201 pi->pos_y = ovli.pos_y;
202 pi->enabled = ovl->is_enabled(ovl);
203 pi->channel_out = 0;
204 pi->mirror = 0;
205 pi->mem_idx = get_mem_idx(ofbi);
206 pi->out_width = ovli.out_width;
207 pi->out_height = ovli.out_height;
208 }
209
210 return 0;
211}
212
213static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
214{
215 struct omapfb_info *ofbi = FB2OFB(fbi);
216 struct omapfb2_device *fbdev = ofbi->fbdev;
217 struct omap_dss_device *display = fb2display(fbi);
218 struct omapfb2_mem_region *rg;
219 int r = 0, i;
220 size_t size;
221
222 if (mi->type != OMAPFB_MEMTYPE_SDRAM)
223 return -EINVAL;
224
225 size = PAGE_ALIGN(mi->size);
226
227 if (display && display->driver->sync)
228 display->driver->sync(display);
229
230 rg = ofbi->region;
231
232 down_write_nested(&rg->lock, rg->id);
233 atomic_inc(&rg->lock_count);
234
235 if (rg->size == size && rg->type == mi->type)
236 goto out;
237
238 if (atomic_read(&rg->map_count)) {
239 r = -EBUSY;
240 goto out;
241 }
242
243 for (i = 0; i < fbdev->num_fbs; i++) {
244 struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
245 int j;
246
247 if (ofbi2->region != rg)
248 continue;
249
250 for (j = 0; j < ofbi2->num_overlays; j++) {
251 struct omap_overlay *ovl;
252 ovl = ofbi2->overlays[j];
253 if (ovl->is_enabled(ovl)) {
254 r = -EBUSY;
255 goto out;
256 }
257 }
258 }
259
260 r = omapfb_realloc_fbmem(fbi, size, mi->type);
261 if (r) {
262 dev_err(fbdev->dev, "realloc fbmem failed\n");
263 goto out;
264 }
265
266 out:
267 atomic_dec(&rg->lock_count);
268 up_write(&rg->lock);
269
270 return r;
271}
272
273static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
274{
275 struct omapfb_info *ofbi = FB2OFB(fbi);
276 struct omapfb2_mem_region *rg;
277
278 rg = omapfb_get_mem_region(ofbi->region);
279 memset(mi, 0, sizeof(*mi));
280
281 mi->size = rg->size;
282 mi->type = rg->type;
283
284 omapfb_put_mem_region(rg);
285
286 return 0;
287}
288
289static int omapfb_update_window(struct fb_info *fbi,
290 u32 x, u32 y, u32 w, u32 h)
291{
292 struct omap_dss_device *display = fb2display(fbi);
293 u16 dw, dh;
294
295 if (!display)
296 return 0;
297
298 if (w == 0 || h == 0)
299 return 0;
300
301 display->driver->get_resolution(display, &dw, &dh);
302
303 if (x + w > dw || y + h > dh)
304 return -EINVAL;
305
306 return display->driver->update(display, x, y, w, h);
307}
308
309int omapfb_set_update_mode(struct fb_info *fbi,
310 enum omapfb_update_mode mode)
311{
312 struct omap_dss_device *display = fb2display(fbi);
313 struct omapfb_info *ofbi = FB2OFB(fbi);
314 struct omapfb2_device *fbdev = ofbi->fbdev;
315 struct omapfb_display_data *d;
316 int r;
317
318 if (!display)
319 return -EINVAL;
320
321 if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
322 return -EINVAL;
323
324 omapfb_lock(fbdev);
325
326 d = get_display_data(fbdev, display);
327
328 if (d->update_mode == mode) {
329 omapfb_unlock(fbdev);
330 return 0;
331 }
332
333 r = 0;
334
335 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
336 if (mode == OMAPFB_AUTO_UPDATE)
337 omapfb_start_auto_update(fbdev, display);
338 else
339 omapfb_stop_auto_update(fbdev, display);
340
341 d->update_mode = mode;
342 } else {
343 if (mode == OMAPFB_MANUAL_UPDATE)
344 r = -EINVAL;
345 }
346
347 omapfb_unlock(fbdev);
348
349 return r;
350}
351
352int omapfb_get_update_mode(struct fb_info *fbi,
353 enum omapfb_update_mode *mode)
354{
355 struct omap_dss_device *display = fb2display(fbi);
356 struct omapfb_info *ofbi = FB2OFB(fbi);
357 struct omapfb2_device *fbdev = ofbi->fbdev;
358 struct omapfb_display_data *d;
359
360 if (!display)
361 return -EINVAL;
362
363 omapfb_lock(fbdev);
364
365 d = get_display_data(fbdev, display);
366
367 *mode = d->update_mode;
368
369 omapfb_unlock(fbdev);
370
371 return 0;
372}
373
374
375static struct omapfb_color_key omapfb_color_keys[2];
376
377static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
378 struct omapfb_color_key *ck)
379{
380 struct omap_overlay_manager_info info;
381 enum omap_dss_trans_key_type kt;
382 int r;
383
384 mgr->get_manager_info(mgr, &info);
385
386 if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
387 info.trans_enabled = false;
388 omapfb_color_keys[mgr->id] = *ck;
389
390 r = mgr->set_manager_info(mgr, &info);
391 if (r)
392 return r;
393
394 r = mgr->apply(mgr);
395
396 return r;
397 }
398
399 switch (ck->key_type) {
400 case OMAPFB_COLOR_KEY_GFX_DST:
401 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
402 break;
403 case OMAPFB_COLOR_KEY_VID_SRC:
404 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
405 break;
406 default:
407 return -EINVAL;
408 }
409
410 info.default_color = ck->background;
411 info.trans_key = ck->trans_key;
412 info.trans_key_type = kt;
413 info.trans_enabled = true;
414
415 omapfb_color_keys[mgr->id] = *ck;
416
417 r = mgr->set_manager_info(mgr, &info);
418 if (r)
419 return r;
420
421 r = mgr->apply(mgr);
422
423 return r;
424}
425
426static int omapfb_set_color_key(struct fb_info *fbi,
427 struct omapfb_color_key *ck)
428{
429 struct omapfb_info *ofbi = FB2OFB(fbi);
430 struct omapfb2_device *fbdev = ofbi->fbdev;
431 int r;
432 int i;
433 struct omap_overlay_manager *mgr = NULL;
434
435 omapfb_lock(fbdev);
436
437 for (i = 0; i < ofbi->num_overlays; i++) {
438 if (ofbi->overlays[i]->manager) {
439 mgr = ofbi->overlays[i]->manager;
440 break;
441 }
442 }
443
444 if (!mgr) {
445 r = -EINVAL;
446 goto err;
447 }
448
449 r = _omapfb_set_color_key(mgr, ck);
450err:
451 omapfb_unlock(fbdev);
452
453 return r;
454}
455
456static int omapfb_get_color_key(struct fb_info *fbi,
457 struct omapfb_color_key *ck)
458{
459 struct omapfb_info *ofbi = FB2OFB(fbi);
460 struct omapfb2_device *fbdev = ofbi->fbdev;
461 struct omap_overlay_manager *mgr = NULL;
462 int r = 0;
463 int i;
464
465 omapfb_lock(fbdev);
466
467 for (i = 0; i < ofbi->num_overlays; i++) {
468 if (ofbi->overlays[i]->manager) {
469 mgr = ofbi->overlays[i]->manager;
470 break;
471 }
472 }
473
474 if (!mgr) {
475 r = -EINVAL;
476 goto err;
477 }
478
479 *ck = omapfb_color_keys[mgr->id];
480err:
481 omapfb_unlock(fbdev);
482
483 return r;
484}
485
486static int omapfb_memory_read(struct fb_info *fbi,
487 struct omapfb_memory_read *mr)
488{
489 struct omap_dss_device *display = fb2display(fbi);
490 void *buf;
491 int r;
492
493 if (!display || !display->driver->memory_read)
494 return -ENOENT;
495
496 if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
497 return -EFAULT;
498
499 if (mr->w * mr->h * 3 > mr->buffer_size)
500 return -EINVAL;
501
502 buf = vmalloc(mr->buffer_size);
503 if (!buf) {
504 DBG("vmalloc failed\n");
505 return -ENOMEM;
506 }
507
508 r = display->driver->memory_read(display, buf, mr->buffer_size,
509 mr->x, mr->y, mr->w, mr->h);
510
511 if (r > 0) {
512 if (copy_to_user(mr->buffer, buf, mr->buffer_size))
513 r = -EFAULT;
514 }
515
516 vfree(buf);
517
518 return r;
519}
520
521static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
522 struct omapfb_ovl_colormode *mode)
523{
524 int ovl_idx = mode->overlay_idx;
525 int mode_idx = mode->mode_idx;
526 struct omap_overlay *ovl;
527 enum omap_color_mode supported_modes;
528 struct fb_var_screeninfo var;
529 int i;
530
531 if (ovl_idx >= fbdev->num_overlays)
532 return -ENODEV;
533 ovl = fbdev->overlays[ovl_idx];
534 supported_modes = ovl->supported_modes;
535
536 mode_idx = mode->mode_idx;
537
538 for (i = 0; i < sizeof(supported_modes) * 8; i++) {
539 if (!(supported_modes & (1 << i)))
540 continue;
541
542
543
544
545
546 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
547 continue;
548
549 mode_idx--;
550 if (mode_idx < 0)
551 break;
552 }
553
554 if (i == sizeof(supported_modes) * 8)
555 return -ENOENT;
556
557 mode->bits_per_pixel = var.bits_per_pixel;
558 mode->nonstd = var.nonstd;
559 mode->red = var.red;
560 mode->green = var.green;
561 mode->blue = var.blue;
562 mode->transp = var.transp;
563
564 return 0;
565}
566
567static int omapfb_wait_for_go(struct fb_info *fbi)
568{
569 struct omapfb_info *ofbi = FB2OFB(fbi);
570 int r = 0;
571 int i;
572
573 for (i = 0; i < ofbi->num_overlays; ++i) {
574 struct omap_overlay *ovl = ofbi->overlays[i];
575 r = ovl->wait_for_go(ovl);
576 if (r)
577 break;
578 }
579
580 return r;
581}
582
583int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
584{
585 struct omapfb_info *ofbi = FB2OFB(fbi);
586 struct omapfb2_device *fbdev = ofbi->fbdev;
587 struct omap_dss_device *display = fb2display(fbi);
588 struct omap_overlay_manager *mgr;
589
590 union {
591 struct omapfb_update_window_old uwnd_o;
592 struct omapfb_update_window uwnd;
593 struct omapfb_plane_info plane_info;
594 struct omapfb_caps caps;
595 struct omapfb_mem_info mem_info;
596 struct omapfb_color_key color_key;
597 struct omapfb_ovl_colormode ovl_colormode;
598 enum omapfb_update_mode update_mode;
599 int test_num;
600 struct omapfb_memory_read memory_read;
601 struct omapfb_vram_info vram_info;
602 struct omapfb_tearsync_info tearsync_info;
603 struct omapfb_display_info display_info;
604 u32 crt;
605 } p;
606
607 int r = 0;
608
609 switch (cmd) {
610 case OMAPFB_SYNC_GFX:
611 DBG("ioctl SYNC_GFX\n");
612 if (!display || !display->driver->sync) {
613
614
615 break;
616 }
617
618 r = display->driver->sync(display);
619 break;
620
621 case OMAPFB_UPDATE_WINDOW_OLD:
622 DBG("ioctl UPDATE_WINDOW_OLD\n");
623 if (!display || !display->driver->update) {
624 r = -EINVAL;
625 break;
626 }
627
628 if (copy_from_user(&p.uwnd_o,
629 (void __user *)arg,
630 sizeof(p.uwnd_o))) {
631 r = -EFAULT;
632 break;
633 }
634
635 r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y,
636 p.uwnd_o.width, p.uwnd_o.height);
637 break;
638
639 case OMAPFB_UPDATE_WINDOW:
640 DBG("ioctl UPDATE_WINDOW\n");
641 if (!display || !display->driver->update) {
642 r = -EINVAL;
643 break;
644 }
645
646 if (copy_from_user(&p.uwnd, (void __user *)arg,
647 sizeof(p.uwnd))) {
648 r = -EFAULT;
649 break;
650 }
651
652 r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y,
653 p.uwnd.width, p.uwnd.height);
654 break;
655
656 case OMAPFB_SETUP_PLANE:
657 DBG("ioctl SETUP_PLANE\n");
658 if (copy_from_user(&p.plane_info, (void __user *)arg,
659 sizeof(p.plane_info)))
660 r = -EFAULT;
661 else
662 r = omapfb_setup_plane(fbi, &p.plane_info);
663 break;
664
665 case OMAPFB_QUERY_PLANE:
666 DBG("ioctl QUERY_PLANE\n");
667 r = omapfb_query_plane(fbi, &p.plane_info);
668 if (r < 0)
669 break;
670 if (copy_to_user((void __user *)arg, &p.plane_info,
671 sizeof(p.plane_info)))
672 r = -EFAULT;
673 break;
674
675 case OMAPFB_SETUP_MEM:
676 DBG("ioctl SETUP_MEM\n");
677 if (copy_from_user(&p.mem_info, (void __user *)arg,
678 sizeof(p.mem_info)))
679 r = -EFAULT;
680 else
681 r = omapfb_setup_mem(fbi, &p.mem_info);
682 break;
683
684 case OMAPFB_QUERY_MEM:
685 DBG("ioctl QUERY_MEM\n");
686 r = omapfb_query_mem(fbi, &p.mem_info);
687 if (r < 0)
688 break;
689 if (copy_to_user((void __user *)arg, &p.mem_info,
690 sizeof(p.mem_info)))
691 r = -EFAULT;
692 break;
693
694 case OMAPFB_GET_CAPS:
695 DBG("ioctl GET_CAPS\n");
696 if (!display) {
697 r = -EINVAL;
698 break;
699 }
700
701 memset(&p.caps, 0, sizeof(p.caps));
702 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
703 p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
704 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
705 p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
706
707 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
708 r = -EFAULT;
709 break;
710
711 case OMAPFB_GET_OVERLAY_COLORMODE:
712 DBG("ioctl GET_OVERLAY_COLORMODE\n");
713 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
714 sizeof(p.ovl_colormode))) {
715 r = -EFAULT;
716 break;
717 }
718 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
719 if (r < 0)
720 break;
721 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
722 sizeof(p.ovl_colormode)))
723 r = -EFAULT;
724 break;
725
726 case OMAPFB_SET_UPDATE_MODE:
727 DBG("ioctl SET_UPDATE_MODE\n");
728 if (get_user(p.update_mode, (int __user *)arg))
729 r = -EFAULT;
730 else
731 r = omapfb_set_update_mode(fbi, p.update_mode);
732 break;
733
734 case OMAPFB_GET_UPDATE_MODE:
735 DBG("ioctl GET_UPDATE_MODE\n");
736 r = omapfb_get_update_mode(fbi, &p.update_mode);
737 if (r)
738 break;
739 if (put_user(p.update_mode,
740 (enum omapfb_update_mode __user *)arg))
741 r = -EFAULT;
742 break;
743
744 case OMAPFB_SET_COLOR_KEY:
745 DBG("ioctl SET_COLOR_KEY\n");
746 if (copy_from_user(&p.color_key, (void __user *)arg,
747 sizeof(p.color_key)))
748 r = -EFAULT;
749 else
750 r = omapfb_set_color_key(fbi, &p.color_key);
751 break;
752
753 case OMAPFB_GET_COLOR_KEY:
754 DBG("ioctl GET_COLOR_KEY\n");
755 r = omapfb_get_color_key(fbi, &p.color_key);
756 if (r)
757 break;
758 if (copy_to_user((void __user *)arg, &p.color_key,
759 sizeof(p.color_key)))
760 r = -EFAULT;
761 break;
762
763 case FBIO_WAITFORVSYNC:
764 if (get_user(p.crt, (__u32 __user *)arg)) {
765 r = -EFAULT;
766 break;
767 }
768 if (p.crt != 0) {
769 r = -ENODEV;
770 break;
771 }
772
773
774 case OMAPFB_WAITFORVSYNC:
775 DBG("ioctl WAITFORVSYNC\n");
776
777 if (!display) {
778 r = -EINVAL;
779 break;
780 }
781
782 mgr = omapdss_find_mgr_from_display(display);
783 if (!mgr) {
784 r = -EINVAL;
785 break;
786 }
787
788 r = mgr->wait_for_vsync(mgr);
789 break;
790
791 case OMAPFB_WAITFORGO:
792 DBG("ioctl WAITFORGO\n");
793 if (!display) {
794 r = -EINVAL;
795 break;
796 }
797
798 r = omapfb_wait_for_go(fbi);
799 break;
800
801
802
803 case OMAPFB_LCD_TEST:
804 DBG("ioctl LCD_TEST\n");
805 if (get_user(p.test_num, (int __user *)arg)) {
806 r = -EFAULT;
807 break;
808 }
809 if (!display || !display->driver->run_test) {
810 r = -EINVAL;
811 break;
812 }
813
814 r = display->driver->run_test(display, p.test_num);
815
816 break;
817
818 case OMAPFB_CTRL_TEST:
819 DBG("ioctl CTRL_TEST\n");
820 if (get_user(p.test_num, (int __user *)arg)) {
821 r = -EFAULT;
822 break;
823 }
824 if (!display || !display->driver->run_test) {
825 r = -EINVAL;
826 break;
827 }
828
829 r = display->driver->run_test(display, p.test_num);
830
831 break;
832
833 case OMAPFB_MEMORY_READ:
834 DBG("ioctl MEMORY_READ\n");
835
836 if (copy_from_user(&p.memory_read, (void __user *)arg,
837 sizeof(p.memory_read))) {
838 r = -EFAULT;
839 break;
840 }
841
842 r = omapfb_memory_read(fbi, &p.memory_read);
843
844 break;
845
846 case OMAPFB_GET_VRAM_INFO: {
847 DBG("ioctl GET_VRAM_INFO\n");
848
849
850
851
852
853 p.vram_info.total = SZ_1M * 64;
854 p.vram_info.free = SZ_1M * 64;
855 p.vram_info.largest_free_block = SZ_1M * 64;
856
857 if (copy_to_user((void __user *)arg, &p.vram_info,
858 sizeof(p.vram_info)))
859 r = -EFAULT;
860 break;
861 }
862
863 case OMAPFB_SET_TEARSYNC: {
864 DBG("ioctl SET_TEARSYNC\n");
865
866 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
867 sizeof(p.tearsync_info))) {
868 r = -EFAULT;
869 break;
870 }
871
872 if (!display || !display->driver->enable_te) {
873 r = -ENODEV;
874 break;
875 }
876
877 r = display->driver->enable_te(display,
878 !!p.tearsync_info.enabled);
879
880 break;
881 }
882
883 case OMAPFB_GET_DISPLAY_INFO: {
884 u16 xres, yres;
885
886 DBG("ioctl GET_DISPLAY_INFO\n");
887
888 if (display == NULL) {
889 r = -ENODEV;
890 break;
891 }
892
893 display->driver->get_resolution(display, &xres, &yres);
894
895 p.display_info.xres = xres;
896 p.display_info.yres = yres;
897
898 if (display->driver->get_dimensions) {
899 u32 w, h;
900 display->driver->get_dimensions(display, &w, &h);
901 p.display_info.width = w;
902 p.display_info.height = h;
903 } else {
904 p.display_info.width = 0;
905 p.display_info.height = 0;
906 }
907
908 if (copy_to_user((void __user *)arg, &p.display_info,
909 sizeof(p.display_info)))
910 r = -EFAULT;
911 break;
912 }
913
914 default:
915 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
916 r = -EINVAL;
917 }
918
919 if (r < 0)
920 DBG("ioctl failed: %d\n", r);
921
922 return r;
923}
924
925
926
