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