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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
32#include <video/omapdss.h>
33#include <plat/vrfb.h>
34#include <plat/vram.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 != 1) {
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 != 1) {
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 omapfb2_mem_region *rg;
215 int r = 0, i;
216 size_t size;
217
218 if (mi->type != OMAPFB_MEMTYPE_SDRAM)
219 return -EINVAL;
220
221 size = PAGE_ALIGN(mi->size);
222
223 rg = ofbi->region;
224
225 down_write_nested(&rg->lock, rg->id);
226 atomic_inc(&rg->lock_count);
227
228 if (atomic_read(&rg->map_count)) {
229 r = -EBUSY;
230 goto out;
231 }
232
233 for (i = 0; i < fbdev->num_fbs; i++) {
234 struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
235 int j;
236
237 if (ofbi2->region != rg)
238 continue;
239
240 for (j = 0; j < ofbi2->num_overlays; j++) {
241 struct omap_overlay *ovl;
242 ovl = ofbi2->overlays[j];
243 if (ovl->is_enabled(ovl)) {
244 r = -EBUSY;
245 goto out;
246 }
247 }
248 }
249
250 if (rg->size != size || rg->type != mi->type) {
251 r = omapfb_realloc_fbmem(fbi, size, mi->type);
252 if (r) {
253 dev_err(fbdev->dev, "realloc fbmem failed\n");
254 goto out;
255 }
256 }
257
258 out:
259 atomic_dec(&rg->lock_count);
260 up_write(&rg->lock);
261
262 return r;
263}
264
265static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
266{
267 struct omapfb_info *ofbi = FB2OFB(fbi);
268 struct omapfb2_mem_region *rg;
269
270 rg = omapfb_get_mem_region(ofbi->region);
271 memset(mi, 0, sizeof(*mi));
272
273 mi->size = rg->size;
274 mi->type = rg->type;
275
276 omapfb_put_mem_region(rg);
277
278 return 0;
279}
280
281static int omapfb_update_window_nolock(struct fb_info *fbi,
282 u32 x, u32 y, u32 w, u32 h)
283{
284 struct omap_dss_device *display = fb2display(fbi);
285 u16 dw, dh;
286
287 if (!display)
288 return 0;
289
290 if (w == 0 || h == 0)
291 return 0;
292
293 display->driver->get_resolution(display, &dw, &dh);
294
295 if (x + w > dw || y + h > dh)
296 return -EINVAL;
297
298 return display->driver->update(display, x, y, w, h);
299}
300
301
302int omapfb_update_window(struct fb_info *fbi,
303 u32 x, u32 y, u32 w, u32 h)
304{
305 struct omapfb_info *ofbi = FB2OFB(fbi);
306 struct omapfb2_device *fbdev = ofbi->fbdev;
307 int r;
308
309 if (!lock_fb_info(fbi))
310 return -ENODEV;
311 omapfb_lock(fbdev);
312
313 r = omapfb_update_window_nolock(fbi, x, y, w, h);
314
315 omapfb_unlock(fbdev);
316 unlock_fb_info(fbi);
317
318 return r;
319}
320EXPORT_SYMBOL(omapfb_update_window);
321
322int omapfb_set_update_mode(struct fb_info *fbi,
323 enum omapfb_update_mode mode)
324{
325 struct omap_dss_device *display = fb2display(fbi);
326 struct omapfb_info *ofbi = FB2OFB(fbi);
327 struct omapfb2_device *fbdev = ofbi->fbdev;
328 struct omapfb_display_data *d;
329 int r;
330
331 if (!display)
332 return -EINVAL;
333
334 if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
335 return -EINVAL;
336
337 omapfb_lock(fbdev);
338
339 d = get_display_data(fbdev, display);
340
341 if (d->update_mode == mode) {
342 omapfb_unlock(fbdev);
343 return 0;
344 }
345
346 r = 0;
347
348 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
349 if (mode == OMAPFB_AUTO_UPDATE)
350 omapfb_start_auto_update(fbdev, display);
351 else
352 omapfb_stop_auto_update(fbdev, display);
353
354 d->update_mode = mode;
355 } else {
356 if (mode == OMAPFB_MANUAL_UPDATE)
357 r = -EINVAL;
358 }
359
360 omapfb_unlock(fbdev);
361
362 return r;
363}
364
365int omapfb_get_update_mode(struct fb_info *fbi,
366 enum omapfb_update_mode *mode)
367{
368 struct omap_dss_device *display = fb2display(fbi);
369 struct omapfb_info *ofbi = FB2OFB(fbi);
370 struct omapfb2_device *fbdev = ofbi->fbdev;
371 struct omapfb_display_data *d;
372
373 if (!display)
374 return -EINVAL;
375
376 omapfb_lock(fbdev);
377
378 d = get_display_data(fbdev, display);
379
380 *mode = d->update_mode;
381
382 omapfb_unlock(fbdev);
383
384 return 0;
385}
386
387
388static struct omapfb_color_key omapfb_color_keys[2];
389
390static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
391 struct omapfb_color_key *ck)
392{
393 struct omap_overlay_manager_info info;
394 enum omap_dss_trans_key_type kt;
395 int r;
396
397 mgr->get_manager_info(mgr, &info);
398
399 if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
400 info.trans_enabled = false;
401 omapfb_color_keys[mgr->id] = *ck;
402
403 r = mgr->set_manager_info(mgr, &info);
404 if (r)
405 return r;
406
407 r = mgr->apply(mgr);
408
409 return r;
410 }
411
412 switch (ck->key_type) {
413 case OMAPFB_COLOR_KEY_GFX_DST:
414 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
415 break;
416 case OMAPFB_COLOR_KEY_VID_SRC:
417 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
418 break;
419 default:
420 return -EINVAL;
421 }
422
423 info.default_color = ck->background;
424 info.trans_key = ck->trans_key;
425 info.trans_key_type = kt;
426 info.trans_enabled = true;
427
428 omapfb_color_keys[mgr->id] = *ck;
429
430 r = mgr->set_manager_info(mgr, &info);
431 if (r)
432 return r;
433
434 r = mgr->apply(mgr);
435
436 return r;
437}
438
439static int omapfb_set_color_key(struct fb_info *fbi,
440 struct omapfb_color_key *ck)
441{
442 struct omapfb_info *ofbi = FB2OFB(fbi);
443 struct omapfb2_device *fbdev = ofbi->fbdev;
444 int r;
445 int i;
446 struct omap_overlay_manager *mgr = NULL;
447
448 omapfb_lock(fbdev);
449
450 for (i = 0; i < ofbi->num_overlays; i++) {
451 if (ofbi->overlays[i]->manager) {
452 mgr = ofbi->overlays[i]->manager;
453 break;
454 }
455 }
456
457 if (!mgr) {
458 r = -EINVAL;
459 goto err;
460 }
461
462 r = _omapfb_set_color_key(mgr, ck);
463err:
464 omapfb_unlock(fbdev);
465
466 return r;
467}
468
469static int omapfb_get_color_key(struct fb_info *fbi,
470 struct omapfb_color_key *ck)
471{
472 struct omapfb_info *ofbi = FB2OFB(fbi);
473 struct omapfb2_device *fbdev = ofbi->fbdev;
474 struct omap_overlay_manager *mgr = NULL;
475 int r = 0;
476 int i;
477
478 omapfb_lock(fbdev);
479
480 for (i = 0; i < ofbi->num_overlays; i++) {
481 if (ofbi->overlays[i]->manager) {
482 mgr = ofbi->overlays[i]->manager;
483 break;
484 }
485 }
486
487 if (!mgr) {
488 r = -EINVAL;
489 goto err;
490 }
491
492 *ck = omapfb_color_keys[mgr->id];
493err:
494 omapfb_unlock(fbdev);
495
496 return r;
497}
498
499static int omapfb_memory_read(struct fb_info *fbi,
500 struct omapfb_memory_read *mr)
501{
502 struct omap_dss_device *display = fb2display(fbi);
503 void *buf;
504 int r;
505
506 if (!display || !display->driver->memory_read)
507 return -ENOENT;
508
509 if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
510 return -EFAULT;
511
512 if (mr->w * mr->h * 3 > mr->buffer_size)
513 return -EINVAL;
514
515 buf = vmalloc(mr->buffer_size);
516 if (!buf) {
517 DBG("vmalloc failed\n");
518 return -ENOMEM;
519 }
520
521 r = display->driver->memory_read(display, buf, mr->buffer_size,
522 mr->x, mr->y, mr->w, mr->h);
523
524 if (r > 0) {
525 if (copy_to_user(mr->buffer, buf, mr->buffer_size))
526 r = -EFAULT;
527 }
528
529 vfree(buf);
530
531 return r;
532}
533
534static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
535 struct omapfb_ovl_colormode *mode)
536{
537 int ovl_idx = mode->overlay_idx;
538 int mode_idx = mode->mode_idx;
539 struct omap_overlay *ovl;
540 enum omap_color_mode supported_modes;
541 struct fb_var_screeninfo var;
542 int i;
543
544 if (ovl_idx >= fbdev->num_overlays)
545 return -ENODEV;
546 ovl = fbdev->overlays[ovl_idx];
547 supported_modes = ovl->supported_modes;
548
549 mode_idx = mode->mode_idx;
550
551 for (i = 0; i < sizeof(supported_modes) * 8; i++) {
552 if (!(supported_modes & (1 << i)))
553 continue;
554
555
556
557
558
559 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
560 continue;
561
562 mode_idx--;
563 if (mode_idx < 0)
564 break;
565 }
566
567 if (i == sizeof(supported_modes) * 8)
568 return -ENOENT;
569
570 mode->bits_per_pixel = var.bits_per_pixel;
571 mode->nonstd = var.nonstd;
572 mode->red = var.red;
573 mode->green = var.green;
574 mode->blue = var.blue;
575 mode->transp = var.transp;
576
577 return 0;
578}
579
580static int omapfb_wait_for_go(struct fb_info *fbi)
581{
582 struct omapfb_info *ofbi = FB2OFB(fbi);
583 int r = 0;
584 int i;
585
586 for (i = 0; i < ofbi->num_overlays; ++i) {
587 struct omap_overlay *ovl = ofbi->overlays[i];
588 r = ovl->wait_for_go(ovl);
589 if (r)
590 break;
591 }
592
593 return r;
594}
595
596int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
597{
598 struct omapfb_info *ofbi = FB2OFB(fbi);
599 struct omapfb2_device *fbdev = ofbi->fbdev;
600 struct omap_dss_device *display = fb2display(fbi);
601
602 union {
603 struct omapfb_update_window_old uwnd_o;
604 struct omapfb_update_window uwnd;
605 struct omapfb_plane_info plane_info;
606 struct omapfb_caps caps;
607 struct omapfb_mem_info mem_info;
608 struct omapfb_color_key color_key;
609 struct omapfb_ovl_colormode ovl_colormode;
610 enum omapfb_update_mode update_mode;
611 int test_num;
612 struct omapfb_memory_read memory_read;
613 struct omapfb_vram_info vram_info;
614 struct omapfb_tearsync_info tearsync_info;
615 struct omapfb_display_info display_info;
616 u32 crt;
617 } p;
618
619 int r = 0;
620
621 switch (cmd) {
622 case OMAPFB_SYNC_GFX:
623 DBG("ioctl SYNC_GFX\n");
624 if (!display || !display->driver->sync) {
625
626
627 break;
628 }
629
630 r = display->driver->sync(display);
631 break;
632
633 case OMAPFB_UPDATE_WINDOW_OLD:
634 DBG("ioctl UPDATE_WINDOW_OLD\n");
635 if (!display || !display->driver->update) {
636 r = -EINVAL;
637 break;
638 }
639
640 if (copy_from_user(&p.uwnd_o,
641 (void __user *)arg,
642 sizeof(p.uwnd_o))) {
643 r = -EFAULT;
644 break;
645 }
646
647 r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y,
648 p.uwnd_o.width, p.uwnd_o.height);
649 break;
650
651 case OMAPFB_UPDATE_WINDOW:
652 DBG("ioctl UPDATE_WINDOW\n");
653 if (!display || !display->driver->update) {
654 r = -EINVAL;
655 break;
656 }
657
658 if (copy_from_user(&p.uwnd, (void __user *)arg,
659 sizeof(p.uwnd))) {
660 r = -EFAULT;
661 break;
662 }
663
664 r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y,
665 p.uwnd.width, p.uwnd.height);
666 break;
667
668 case OMAPFB_SETUP_PLANE:
669 DBG("ioctl SETUP_PLANE\n");
670 if (copy_from_user(&p.plane_info, (void __user *)arg,
671 sizeof(p.plane_info)))
672 r = -EFAULT;
673 else
674 r = omapfb_setup_plane(fbi, &p.plane_info);
675 break;
676
677 case OMAPFB_QUERY_PLANE:
678 DBG("ioctl QUERY_PLANE\n");
679 r = omapfb_query_plane(fbi, &p.plane_info);
680 if (r < 0)
681 break;
682 if (copy_to_user((void __user *)arg, &p.plane_info,
683 sizeof(p.plane_info)))
684 r = -EFAULT;
685 break;
686
687 case OMAPFB_SETUP_MEM:
688 DBG("ioctl SETUP_MEM\n");
689 if (copy_from_user(&p.mem_info, (void __user *)arg,
690 sizeof(p.mem_info)))
691 r = -EFAULT;
692 else
693 r = omapfb_setup_mem(fbi, &p.mem_info);
694 break;
695
696 case OMAPFB_QUERY_MEM:
697 DBG("ioctl QUERY_MEM\n");
698 r = omapfb_query_mem(fbi, &p.mem_info);
699 if (r < 0)
700 break;
701 if (copy_to_user((void __user *)arg, &p.mem_info,
702 sizeof(p.mem_info)))
703 r = -EFAULT;
704 break;
705
706 case OMAPFB_GET_CAPS:
707 DBG("ioctl GET_CAPS\n");
708 if (!display) {
709 r = -EINVAL;
710 break;
711 }
712
713 memset(&p.caps, 0, sizeof(p.caps));
714 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
715 p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
716 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
717 p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
718
719 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
720 r = -EFAULT;
721 break;
722
723 case OMAPFB_GET_OVERLAY_COLORMODE:
724 DBG("ioctl GET_OVERLAY_COLORMODE\n");
725 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
726 sizeof(p.ovl_colormode))) {
727 r = -EFAULT;
728 break;
729 }
730 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
731 if (r < 0)
732 break;
733 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
734 sizeof(p.ovl_colormode)))
735 r = -EFAULT;
736 break;
737
738 case OMAPFB_SET_UPDATE_MODE:
739 DBG("ioctl SET_UPDATE_MODE\n");
740 if (get_user(p.update_mode, (int __user *)arg))
741 r = -EFAULT;
742 else
743 r = omapfb_set_update_mode(fbi, p.update_mode);
744 break;
745
746 case OMAPFB_GET_UPDATE_MODE:
747 DBG("ioctl GET_UPDATE_MODE\n");
748 r = omapfb_get_update_mode(fbi, &p.update_mode);
749 if (r)
750 break;
751 if (put_user(p.update_mode,
752 (enum omapfb_update_mode __user *)arg))
753 r = -EFAULT;
754 break;
755
756 case OMAPFB_SET_COLOR_KEY:
757 DBG("ioctl SET_COLOR_KEY\n");
758 if (copy_from_user(&p.color_key, (void __user *)arg,
759 sizeof(p.color_key)))
760 r = -EFAULT;
761 else
762 r = omapfb_set_color_key(fbi, &p.color_key);
763 break;
764
765 case OMAPFB_GET_COLOR_KEY:
766 DBG("ioctl GET_COLOR_KEY\n");
767 r = omapfb_get_color_key(fbi, &p.color_key);
768 if (r)
769 break;
770 if (copy_to_user((void __user *)arg, &p.color_key,
771 sizeof(p.color_key)))
772 r = -EFAULT;
773 break;
774
775 case FBIO_WAITFORVSYNC:
776 if (get_user(p.crt, (__u32 __user *)arg)) {
777 r = -EFAULT;
778 break;
779 }
780 if (p.crt != 0) {
781 r = -ENODEV;
782 break;
783 }
784
785
786 case OMAPFB_WAITFORVSYNC:
787 DBG("ioctl WAITFORVSYNC\n");
788 if (!display) {
789 r = -EINVAL;
790 break;
791 }
792
793 r = display->manager->wait_for_vsync(display->manager);
794 break;
795
796 case OMAPFB_WAITFORGO:
797 DBG("ioctl WAITFORGO\n");
798 if (!display) {
799 r = -EINVAL;
800 break;
801 }
802
803 r = omapfb_wait_for_go(fbi);
804 break;
805
806
807
808 case OMAPFB_LCD_TEST:
809 DBG("ioctl LCD_TEST\n");
810 if (get_user(p.test_num, (int __user *)arg)) {
811 r = -EFAULT;
812 break;
813 }
814 if (!display || !display->driver->run_test) {
815 r = -EINVAL;
816 break;
817 }
818
819 r = display->driver->run_test(display, p.test_num);
820
821 break;
822
823 case OMAPFB_CTRL_TEST:
824 DBG("ioctl CTRL_TEST\n");
825 if (get_user(p.test_num, (int __user *)arg)) {
826 r = -EFAULT;
827 break;
828 }
829 if (!display || !display->driver->run_test) {
830 r = -EINVAL;
831 break;
832 }
833
834 r = display->driver->run_test(display, p.test_num);
835
836 break;
837
838 case OMAPFB_MEMORY_READ:
839 DBG("ioctl MEMORY_READ\n");
840
841 if (copy_from_user(&p.memory_read, (void __user *)arg,
842 sizeof(p.memory_read))) {
843 r = -EFAULT;
844 break;
845 }
846
847 r = omapfb_memory_read(fbi, &p.memory_read);
848
849 break;
850
851 case OMAPFB_GET_VRAM_INFO: {
852 unsigned long vram, free, largest;
853
854 DBG("ioctl GET_VRAM_INFO\n");
855
856 omap_vram_get_info(&vram, &free, &largest);
857 p.vram_info.total = vram;
858 p.vram_info.free = free;
859 p.vram_info.largest_free_block = largest;
860
861 if (copy_to_user((void __user *)arg, &p.vram_info,
862 sizeof(p.vram_info)))
863 r = -EFAULT;
864 break;
865 }
866
867 case OMAPFB_SET_TEARSYNC: {
868 DBG("ioctl SET_TEARSYNC\n");
869
870 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
871 sizeof(p.tearsync_info))) {
872 r = -EFAULT;
873 break;
874 }
875
876 if (!display || !display->driver->enable_te) {
877 r = -ENODEV;
878 break;
879 }
880
881 r = display->driver->enable_te(display,
882 !!p.tearsync_info.enabled);
883
884 break;
885 }
886
887 case OMAPFB_GET_DISPLAY_INFO: {
888 u16 xres, yres;
889
890 DBG("ioctl GET_DISPLAY_INFO\n");
891
892 if (display == NULL) {
893 r = -ENODEV;
894 break;
895 }
896
897 display->driver->get_resolution(display, &xres, &yres);
898
899 p.display_info.xres = xres;
900 p.display_info.yres = yres;
901
902 if (display->driver->get_dimensions) {
903 u32 w, h;
904 display->driver->get_dimensions(display, &w, &h);
905 p.display_info.width = w;
906 p.display_info.height = h;
907 } else {
908 p.display_info.width = 0;
909 p.display_info.height = 0;
910 }
911
912 if (copy_to_user((void __user *)arg, &p.display_info,
913 sizeof(p.display_info)))
914 r = -EFAULT;
915 break;
916 }
917
918 default:
919 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
920 r = -EINVAL;
921 }
922
923 if (r < 0)
924 DBG("ioctl failed: %d\n", r);
925
926 return r;
927}
928
929
930
