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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/omapfb_dss.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 > 4096 || mr->h > 4096)
500 return -EINVAL;
501
502 if (mr->w * mr->h * 3 > mr->buffer_size)
503 return -EINVAL;
504
505 buf = vmalloc(mr->buffer_size);
506 if (!buf) {
507 DBG("vmalloc failed\n");
508 return -ENOMEM;
509 }
510
511 r = display->driver->memory_read(display, buf, mr->buffer_size,
512 mr->x, mr->y, mr->w, mr->h);
513
514 if (r > 0) {
515 if (copy_to_user(mr->buffer, buf, r))
516 r = -EFAULT;
517 }
518
519 vfree(buf);
520
521 return r;
522}
523
524static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
525 struct omapfb_ovl_colormode *mode)
526{
527 int ovl_idx = mode->overlay_idx;
528 int mode_idx = mode->mode_idx;
529 struct omap_overlay *ovl;
530 enum omap_color_mode supported_modes;
531 struct fb_var_screeninfo var;
532 int i;
533
534 if (ovl_idx >= fbdev->num_overlays)
535 return -ENODEV;
536 ovl = fbdev->overlays[ovl_idx];
537 supported_modes = ovl->supported_modes;
538
539 mode_idx = mode->mode_idx;
540
541 for (i = 0; i < sizeof(supported_modes) * 8; i++) {
542 if (!(supported_modes & (1 << i)))
543 continue;
544
545
546
547
548
549 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
550 continue;
551
552 mode_idx--;
553 if (mode_idx < 0)
554 break;
555 }
556
557 if (i == sizeof(supported_modes) * 8)
558 return -ENOENT;
559
560 mode->bits_per_pixel = var.bits_per_pixel;
561 mode->nonstd = var.nonstd;
562 mode->red = var.red;
563 mode->green = var.green;
564 mode->blue = var.blue;
565 mode->transp = var.transp;
566
567 return 0;
568}
569
570static int omapfb_wait_for_go(struct fb_info *fbi)
571{
572 struct omapfb_info *ofbi = FB2OFB(fbi);
573 int r = 0;
574 int i;
575
576 for (i = 0; i < ofbi->num_overlays; ++i) {
577 struct omap_overlay *ovl = ofbi->overlays[i];
578 r = ovl->wait_for_go(ovl);
579 if (r)
580 break;
581 }
582
583 return r;
584}
585
586int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
587{
588 struct omapfb_info *ofbi = FB2OFB(fbi);
589 struct omapfb2_device *fbdev = ofbi->fbdev;
590 struct omap_dss_device *display = fb2display(fbi);
591 struct omap_overlay_manager *mgr;
592
593 union {
594 struct omapfb_update_window_old uwnd_o;
595 struct omapfb_update_window uwnd;
596 struct omapfb_plane_info plane_info;
597 struct omapfb_caps caps;
598 struct omapfb_mem_info mem_info;
599 struct omapfb_color_key color_key;
600 struct omapfb_ovl_colormode ovl_colormode;
601 enum omapfb_update_mode update_mode;
602 int test_num;
603 struct omapfb_memory_read memory_read;
604 struct omapfb_vram_info vram_info;
605 struct omapfb_tearsync_info tearsync_info;
606 struct omapfb_display_info display_info;
607 u32 crt;
608 } p;
609
610 int r = 0;
611
612 switch (cmd) {
613 case OMAPFB_SYNC_GFX:
614 DBG("ioctl SYNC_GFX\n");
615 if (!display || !display->driver->sync) {
616
617
618 break;
619 }
620
621 r = display->driver->sync(display);
622 break;
623
624 case OMAPFB_UPDATE_WINDOW_OLD:
625 DBG("ioctl UPDATE_WINDOW_OLD\n");
626 if (!display || !display->driver->update) {
627 r = -EINVAL;
628 break;
629 }
630
631 if (copy_from_user(&p.uwnd_o,
632 (void __user *)arg,
633 sizeof(p.uwnd_o))) {
634 r = -EFAULT;
635 break;
636 }
637
638 r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y,
639 p.uwnd_o.width, p.uwnd_o.height);
640 break;
641
642 case OMAPFB_UPDATE_WINDOW:
643 DBG("ioctl UPDATE_WINDOW\n");
644 if (!display || !display->driver->update) {
645 r = -EINVAL;
646 break;
647 }
648
649 if (copy_from_user(&p.uwnd, (void __user *)arg,
650 sizeof(p.uwnd))) {
651 r = -EFAULT;
652 break;
653 }
654
655 r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y,
656 p.uwnd.width, p.uwnd.height);
657 break;
658
659 case OMAPFB_SETUP_PLANE:
660 DBG("ioctl SETUP_PLANE\n");
661 if (copy_from_user(&p.plane_info, (void __user *)arg,
662 sizeof(p.plane_info)))
663 r = -EFAULT;
664 else
665 r = omapfb_setup_plane(fbi, &p.plane_info);
666 break;
667
668 case OMAPFB_QUERY_PLANE:
669 DBG("ioctl QUERY_PLANE\n");
670 r = omapfb_query_plane(fbi, &p.plane_info);
671 if (r < 0)
672 break;
673 if (copy_to_user((void __user *)arg, &p.plane_info,
674 sizeof(p.plane_info)))
675 r = -EFAULT;
676 break;
677
678 case OMAPFB_SETUP_MEM:
679 DBG("ioctl SETUP_MEM\n");
680 if (copy_from_user(&p.mem_info, (void __user *)arg,
681 sizeof(p.mem_info)))
682 r = -EFAULT;
683 else
684 r = omapfb_setup_mem(fbi, &p.mem_info);
685 break;
686
687 case OMAPFB_QUERY_MEM:
688 DBG("ioctl QUERY_MEM\n");
689 r = omapfb_query_mem(fbi, &p.mem_info);
690 if (r < 0)
691 break;
692 if (copy_to_user((void __user *)arg, &p.mem_info,
693 sizeof(p.mem_info)))
694 r = -EFAULT;
695 break;
696
697 case OMAPFB_GET_CAPS:
698 DBG("ioctl GET_CAPS\n");
699 if (!display) {
700 r = -EINVAL;
701 break;
702 }
703
704 memset(&p.caps, 0, sizeof(p.caps));
705 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
706 p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
707 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
708 p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
709
710 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
711 r = -EFAULT;
712 break;
713
714 case OMAPFB_GET_OVERLAY_COLORMODE:
715 DBG("ioctl GET_OVERLAY_COLORMODE\n");
716 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
717 sizeof(p.ovl_colormode))) {
718 r = -EFAULT;
719 break;
720 }
721 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
722 if (r < 0)
723 break;
724 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
725 sizeof(p.ovl_colormode)))
726 r = -EFAULT;
727 break;
728
729 case OMAPFB_SET_UPDATE_MODE:
730 DBG("ioctl SET_UPDATE_MODE\n");
731 if (get_user(p.update_mode, (int __user *)arg))
732 r = -EFAULT;
733 else
734 r = omapfb_set_update_mode(fbi, p.update_mode);
735 break;
736
737 case OMAPFB_GET_UPDATE_MODE:
738 DBG("ioctl GET_UPDATE_MODE\n");
739 r = omapfb_get_update_mode(fbi, &p.update_mode);
740 if (r)
741 break;
742 if (put_user(p.update_mode,
743 (enum omapfb_update_mode __user *)arg))
744 r = -EFAULT;
745 break;
746
747 case OMAPFB_SET_COLOR_KEY:
748 DBG("ioctl SET_COLOR_KEY\n");
749 if (copy_from_user(&p.color_key, (void __user *)arg,
750 sizeof(p.color_key)))
751 r = -EFAULT;
752 else
753 r = omapfb_set_color_key(fbi, &p.color_key);
754 break;
755
756 case OMAPFB_GET_COLOR_KEY:
757 DBG("ioctl GET_COLOR_KEY\n");
758 r = omapfb_get_color_key(fbi, &p.color_key);
759 if (r)
760 break;
761 if (copy_to_user((void __user *)arg, &p.color_key,
762 sizeof(p.color_key)))
763 r = -EFAULT;
764 break;
765
766 case FBIO_WAITFORVSYNC:
767 if (get_user(p.crt, (__u32 __user *)arg)) {
768 r = -EFAULT;
769 break;
770 }
771 if (p.crt != 0) {
772 r = -ENODEV;
773 break;
774 }
775
776
777 case OMAPFB_WAITFORVSYNC:
778 DBG("ioctl WAITFORVSYNC\n");
779
780 if (!display) {
781 r = -EINVAL;
782 break;
783 }
784
785 mgr = omapdss_find_mgr_from_display(display);
786 if (!mgr) {
787 r = -EINVAL;
788 break;
789 }
790
791 r = mgr->wait_for_vsync(mgr);
792 break;
793
794 case OMAPFB_WAITFORGO:
795 DBG("ioctl WAITFORGO\n");
796 if (!display) {
797 r = -EINVAL;
798 break;
799 }
800
801 r = omapfb_wait_for_go(fbi);
802 break;
803
804
805
806 case OMAPFB_LCD_TEST:
807 DBG("ioctl LCD_TEST\n");
808 if (get_user(p.test_num, (int __user *)arg)) {
809 r = -EFAULT;
810 break;
811 }
812 if (!display || !display->driver->run_test) {
813 r = -EINVAL;
814 break;
815 }
816
817 r = display->driver->run_test(display, p.test_num);
818
819 break;
820
821 case OMAPFB_CTRL_TEST:
822 DBG("ioctl CTRL_TEST\n");
823 if (get_user(p.test_num, (int __user *)arg)) {
824 r = -EFAULT;
825 break;
826 }
827 if (!display || !display->driver->run_test) {
828 r = -EINVAL;
829 break;
830 }
831
832 r = display->driver->run_test(display, p.test_num);
833
834 break;
835
836 case OMAPFB_MEMORY_READ:
837 DBG("ioctl MEMORY_READ\n");
838
839 if (copy_from_user(&p.memory_read, (void __user *)arg,
840 sizeof(p.memory_read))) {
841 r = -EFAULT;
842 break;
843 }
844
845 r = omapfb_memory_read(fbi, &p.memory_read);
846
847 break;
848
849 case OMAPFB_GET_VRAM_INFO: {
850 DBG("ioctl GET_VRAM_INFO\n");
851
852
853
854
855
856 p.vram_info.total = SZ_1M * 64;
857 p.vram_info.free = SZ_1M * 64;
858 p.vram_info.largest_free_block = SZ_1M * 64;
859
860 if (copy_to_user((void __user *)arg, &p.vram_info,
861 sizeof(p.vram_info)))
862 r = -EFAULT;
863 break;
864 }
865
866 case OMAPFB_SET_TEARSYNC: {
867 DBG("ioctl SET_TEARSYNC\n");
868
869 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
870 sizeof(p.tearsync_info))) {
871 r = -EFAULT;
872 break;
873 }
874
875 if (!display || !display->driver->enable_te) {
876 r = -ENODEV;
877 break;
878 }
879
880 r = display->driver->enable_te(display,
881 !!p.tearsync_info.enabled);
882
883 break;
884 }
885
886 case OMAPFB_GET_DISPLAY_INFO: {
887 u16 xres, yres;
888
889 DBG("ioctl GET_DISPLAY_INFO\n");
890
891 if (display == NULL) {
892 r = -ENODEV;
893 break;
894 }
895
896 display->driver->get_resolution(display, &xres, &yres);
897
898 p.display_info.xres = xres;
899 p.display_info.yres = yres;
900
901 if (display->driver->get_dimensions) {
902 u32 w, h;
903 display->driver->get_dimensions(display, &w, &h);
904 p.display_info.width = w;
905 p.display_info.height = h;
906 } else {
907 p.display_info.width = 0;
908 p.display_info.height = 0;
909 }
910
911 if (copy_to_user((void __user *)arg, &p.display_info,
912 sizeof(p.display_info)))
913 r = -EFAULT;
914 break;
915 }
916
917 default:
918 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
919 r = -EINVAL;
920 }
921
922 if (r < 0)
923 DBG("ioctl failed: %d\n", r);
924
925 return r;
926}
927
928
929
