1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/drivers/video/omap2/omapfb-ioctl.c
4 *
5 * Copyright (C) 2008 Nokia Corporation
6 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
7 *
8 * Some code and ideas taken from drivers/video/omap/ driver
9 * by Imre Deak.
10 */
11
12 #include <linux/fb.h>
13 #include <linux/device.h>
14 #include <linux/uaccess.h>
15 #include <linux/platform_device.h>
16 #include <linux/mm.h>
17 #include <linux/omapfb.h>
18 #include <linux/vmalloc.h>
19 #include <linux/sizes.h>
20
21 #include <video/omapfb_dss.h>
22 #include <video/omapvrfb.h>
23
24 #include "omapfb.h"
25
get_mem_idx(struct omapfb_info * ofbi)26 static u8 get_mem_idx(struct omapfb_info *ofbi)
27 {
28 if (ofbi->id == ofbi->region->id)
29 return 0;
30
31 return OMAPFB_MEM_IDX_ENABLED | ofbi->region->id;
32 }
33
get_mem_region(struct omapfb_info * ofbi,u8 mem_idx)34 static struct omapfb2_mem_region *get_mem_region(struct omapfb_info *ofbi,
35 u8 mem_idx)
36 {
37 struct omapfb2_device *fbdev = ofbi->fbdev;
38
39 if (mem_idx & OMAPFB_MEM_IDX_ENABLED)
40 mem_idx &= OMAPFB_MEM_IDX_MASK;
41 else
42 mem_idx = ofbi->id;
43
44 if (mem_idx >= fbdev->num_fbs)
45 return NULL;
46
47 return &fbdev->regions[mem_idx];
48 }
49
omapfb_setup_plane(struct fb_info * fbi,struct omapfb_plane_info * pi)50 static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
51 {
52 struct omapfb_info *ofbi = FB2OFB(fbi);
53 struct omapfb2_device *fbdev = ofbi->fbdev;
54 struct omap_overlay *ovl;
55 struct omap_overlay_info old_info;
56 struct omapfb2_mem_region *old_rg, *new_rg;
57 int r = 0;
58
59 DBG("omapfb_setup_plane\n");
60
61 if (ofbi->num_overlays == 0) {
62 r = -EINVAL;
63 goto out;
64 }
65
66 /* XXX uses only the first overlay */
67 ovl = ofbi->overlays[0];
68
69 old_rg = ofbi->region;
70 new_rg = get_mem_region(ofbi, pi->mem_idx);
71 if (!new_rg) {
72 r = -EINVAL;
73 goto out;
74 }
75
76 /* Take the locks in a specific order to keep lockdep happy */
77 if (old_rg->id < new_rg->id) {
78 omapfb_get_mem_region(old_rg);
79 omapfb_get_mem_region(new_rg);
80 } else if (new_rg->id < old_rg->id) {
81 omapfb_get_mem_region(new_rg);
82 omapfb_get_mem_region(old_rg);
83 } else
84 omapfb_get_mem_region(old_rg);
85
86 if (pi->enabled && !new_rg->size) {
87 /*
88 * This plane's memory was freed, can't enable it
89 * until it's reallocated.
90 */
91 r = -EINVAL;
92 goto put_mem;
93 }
94
95 ovl->get_overlay_info(ovl, &old_info);
96
97 if (old_rg != new_rg) {
98 ofbi->region = new_rg;
99 set_fb_fix(fbi);
100 }
101
102 if (!pi->enabled) {
103 r = ovl->disable(ovl);
104 if (r)
105 goto undo;
106 }
107
108 if (pi->enabled) {
109 r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y,
110 pi->out_width, pi->out_height);
111 if (r)
112 goto undo;
113 } else {
114 struct omap_overlay_info info;
115
116 ovl->get_overlay_info(ovl, &info);
117
118 info.pos_x = pi->pos_x;
119 info.pos_y = pi->pos_y;
120 info.out_width = pi->out_width;
121 info.out_height = pi->out_height;
122
123 r = ovl->set_overlay_info(ovl, &info);
124 if (r)
125 goto undo;
126 }
127
128 if (ovl->manager) {
129 r = ovl->manager->apply(ovl->manager);
130 if (r)
131 goto undo;
132 }
133
134 if (pi->enabled) {
135 r = ovl->enable(ovl);
136 if (r)
137 goto undo;
138 }
139
140 /* Release the locks in a specific order to keep lockdep happy */
141 if (old_rg->id > new_rg->id) {
142 omapfb_put_mem_region(old_rg);
143 omapfb_put_mem_region(new_rg);
144 } else if (new_rg->id > old_rg->id) {
145 omapfb_put_mem_region(new_rg);
146 omapfb_put_mem_region(old_rg);
147 } else
148 omapfb_put_mem_region(old_rg);
149
150 return 0;
151
152 undo:
153 if (old_rg != new_rg) {
154 ofbi->region = old_rg;
155 set_fb_fix(fbi);
156 }
157
158 ovl->set_overlay_info(ovl, &old_info);
159 put_mem:
160 /* Release the locks in a specific order to keep lockdep happy */
161 if (old_rg->id > new_rg->id) {
162 omapfb_put_mem_region(old_rg);
163 omapfb_put_mem_region(new_rg);
164 } else if (new_rg->id > old_rg->id) {
165 omapfb_put_mem_region(new_rg);
166 omapfb_put_mem_region(old_rg);
167 } else
168 omapfb_put_mem_region(old_rg);
169 out:
170 dev_err(fbdev->dev, "setup_plane failed\n");
171
172 return r;
173 }
174
omapfb_query_plane(struct fb_info * fbi,struct omapfb_plane_info * pi)175 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
176 {
177 struct omapfb_info *ofbi = FB2OFB(fbi);
178
179 if (ofbi->num_overlays == 0) {
180 memset(pi, 0, sizeof(*pi));
181 } else {
182 struct omap_overlay *ovl;
183 struct omap_overlay_info ovli;
184
185 ovl = ofbi->overlays[0];
186 ovl->get_overlay_info(ovl, &ovli);
187
188 pi->pos_x = ovli.pos_x;
189 pi->pos_y = ovli.pos_y;
190 pi->enabled = ovl->is_enabled(ovl);
191 pi->channel_out = 0; /* xxx */
192 pi->mirror = 0;
193 pi->mem_idx = get_mem_idx(ofbi);
194 pi->out_width = ovli.out_width;
195 pi->out_height = ovli.out_height;
196 }
197
198 return 0;
199 }
200
omapfb_setup_mem(struct fb_info * fbi,struct omapfb_mem_info * mi)201 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
202 {
203 struct omapfb_info *ofbi = FB2OFB(fbi);
204 struct omapfb2_device *fbdev = ofbi->fbdev;
205 struct omap_dss_device *display = fb2display(fbi);
206 struct omapfb2_mem_region *rg;
207 int r = 0, i;
208 size_t size;
209
210 if (mi->type != OMAPFB_MEMTYPE_SDRAM)
211 return -EINVAL;
212
213 size = PAGE_ALIGN(mi->size);
214
215 if (display && display->driver->sync)
216 display->driver->sync(display);
217
218 rg = ofbi->region;
219
220 down_write_nested(&rg->lock, rg->id);
221 atomic_inc(&rg->lock_count);
222
223 if (rg->size == size && rg->type == mi->type)
224 goto out;
225
226 if (atomic_read(&rg->map_count)) {
227 r = -EBUSY;
228 goto out;
229 }
230
231 for (i = 0; i < fbdev->num_fbs; i++) {
232 struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
233 int j;
234
235 if (ofbi2->region != rg)
236 continue;
237
238 for (j = 0; j < ofbi2->num_overlays; j++) {
239 struct omap_overlay *ovl;
240 ovl = ofbi2->overlays[j];
241 if (ovl->is_enabled(ovl)) {
242 r = -EBUSY;
243 goto out;
244 }
245 }
246 }
247
248 r = omapfb_realloc_fbmem(fbi, size, mi->type);
249 if (r) {
250 dev_err(fbdev->dev, "realloc fbmem failed\n");
251 goto out;
252 }
253
254 out:
255 atomic_dec(&rg->lock_count);
256 up_write(&rg->lock);
257
258 return r;
259 }
260
omapfb_query_mem(struct fb_info * fbi,struct omapfb_mem_info * mi)261 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
262 {
263 struct omapfb_info *ofbi = FB2OFB(fbi);
264 struct omapfb2_mem_region *rg;
265
266 rg = omapfb_get_mem_region(ofbi->region);
267 memset(mi, 0, sizeof(*mi));
268
269 mi->size = rg->size;
270 mi->type = rg->type;
271
272 omapfb_put_mem_region(rg);
273
274 return 0;
275 }
276
omapfb_update_window(struct fb_info * fbi,u32 x,u32 y,u32 w,u32 h)277 static int omapfb_update_window(struct fb_info *fbi,
278 u32 x, u32 y, u32 w, u32 h)
279 {
280 struct omap_dss_device *display = fb2display(fbi);
281 u16 dw, dh;
282
283 if (!display)
284 return 0;
285
286 if (w == 0 || h == 0)
287 return 0;
288
289 display->driver->get_resolution(display, &dw, &dh);
290
291 if (x + w > dw || y + h > dh)
292 return -EINVAL;
293
294 return display->driver->update(display, x, y, w, h);
295 }
296
omapfb_set_update_mode(struct fb_info * fbi,enum omapfb_update_mode mode)297 int omapfb_set_update_mode(struct fb_info *fbi,
298 enum omapfb_update_mode mode)
299 {
300 struct omap_dss_device *display = fb2display(fbi);
301 struct omapfb_info *ofbi = FB2OFB(fbi);
302 struct omapfb2_device *fbdev = ofbi->fbdev;
303 struct omapfb_display_data *d;
304 int r;
305
306 if (!display)
307 return -EINVAL;
308
309 if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
310 return -EINVAL;
311
312 omapfb_lock(fbdev);
313
314 d = get_display_data(fbdev, display);
315
316 if (d->update_mode == mode) {
317 omapfb_unlock(fbdev);
318 return 0;
319 }
320
321 r = 0;
322
323 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
324 if (mode == OMAPFB_AUTO_UPDATE)
325 omapfb_start_auto_update(fbdev, display);
326 else /* MANUAL_UPDATE */
327 omapfb_stop_auto_update(fbdev, display);
328
329 d->update_mode = mode;
330 } else { /* AUTO_UPDATE */
331 if (mode == OMAPFB_MANUAL_UPDATE)
332 r = -EINVAL;
333 }
334
335 omapfb_unlock(fbdev);
336
337 return r;
338 }
339
omapfb_get_update_mode(struct fb_info * fbi,enum omapfb_update_mode * mode)340 int omapfb_get_update_mode(struct fb_info *fbi,
341 enum omapfb_update_mode *mode)
342 {
343 struct omap_dss_device *display = fb2display(fbi);
344 struct omapfb_info *ofbi = FB2OFB(fbi);
345 struct omapfb2_device *fbdev = ofbi->fbdev;
346 struct omapfb_display_data *d;
347
348 if (!display)
349 return -EINVAL;
350
351 omapfb_lock(fbdev);
352
353 d = get_display_data(fbdev, display);
354
355 *mode = d->update_mode;
356
357 omapfb_unlock(fbdev);
358
359 return 0;
360 }
361
362 /* XXX this color key handling is a hack... */
363 static struct omapfb_color_key omapfb_color_keys[2];
364
_omapfb_set_color_key(struct omap_overlay_manager * mgr,struct omapfb_color_key * ck)365 static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
366 struct omapfb_color_key *ck)
367 {
368 struct omap_overlay_manager_info info;
369 enum omap_dss_trans_key_type kt;
370 int r;
371
372 mgr->get_manager_info(mgr, &info);
373
374 if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
375 info.trans_enabled = false;
376 omapfb_color_keys[mgr->id] = *ck;
377
378 r = mgr->set_manager_info(mgr, &info);
379 if (r)
380 return r;
381
382 r = mgr->apply(mgr);
383
384 return r;
385 }
386
387 switch (ck->key_type) {
388 case OMAPFB_COLOR_KEY_GFX_DST:
389 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
390 break;
391 case OMAPFB_COLOR_KEY_VID_SRC:
392 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
393 break;
394 default:
395 return -EINVAL;
396 }
397
398 info.default_color = ck->background;
399 info.trans_key = ck->trans_key;
400 info.trans_key_type = kt;
401 info.trans_enabled = true;
402
403 omapfb_color_keys[mgr->id] = *ck;
404
405 r = mgr->set_manager_info(mgr, &info);
406 if (r)
407 return r;
408
409 r = mgr->apply(mgr);
410
411 return r;
412 }
413
omapfb_set_color_key(struct fb_info * fbi,struct omapfb_color_key * ck)414 static int omapfb_set_color_key(struct fb_info *fbi,
415 struct omapfb_color_key *ck)
416 {
417 struct omapfb_info *ofbi = FB2OFB(fbi);
418 struct omapfb2_device *fbdev = ofbi->fbdev;
419 int r;
420 int i;
421 struct omap_overlay_manager *mgr = NULL;
422
423 omapfb_lock(fbdev);
424
425 for (i = 0; i < ofbi->num_overlays; i++) {
426 if (ofbi->overlays[i]->manager) {
427 mgr = ofbi->overlays[i]->manager;
428 break;
429 }
430 }
431
432 if (!mgr) {
433 r = -EINVAL;
434 goto err;
435 }
436
437 r = _omapfb_set_color_key(mgr, ck);
438 err:
439 omapfb_unlock(fbdev);
440
441 return r;
442 }
443
omapfb_get_color_key(struct fb_info * fbi,struct omapfb_color_key * ck)444 static int omapfb_get_color_key(struct fb_info *fbi,
445 struct omapfb_color_key *ck)
446 {
447 struct omapfb_info *ofbi = FB2OFB(fbi);
448 struct omapfb2_device *fbdev = ofbi->fbdev;
449 struct omap_overlay_manager *mgr = NULL;
450 int r = 0;
451 int i;
452
453 omapfb_lock(fbdev);
454
455 for (i = 0; i < ofbi->num_overlays; i++) {
456 if (ofbi->overlays[i]->manager) {
457 mgr = ofbi->overlays[i]->manager;
458 break;
459 }
460 }
461
462 if (!mgr) {
463 r = -EINVAL;
464 goto err;
465 }
466
467 *ck = omapfb_color_keys[mgr->id];
468 err:
469 omapfb_unlock(fbdev);
470
471 return r;
472 }
473
omapfb_memory_read(struct fb_info * fbi,struct omapfb_memory_read * mr)474 static int omapfb_memory_read(struct fb_info *fbi,
475 struct omapfb_memory_read *mr)
476 {
477 struct omap_dss_device *display = fb2display(fbi);
478 void *buf;
479 int r;
480
481 if (!display || !display->driver->memory_read)
482 return -ENOENT;
483
484 if (mr->w > 4096 || mr->h > 4096)
485 return -EINVAL;
486
487 if (mr->w * mr->h * 3 > mr->buffer_size)
488 return -EINVAL;
489
490 buf = vmalloc(mr->buffer_size);
491 if (!buf) {
492 DBG("vmalloc failed\n");
493 return -ENOMEM;
494 }
495
496 r = display->driver->memory_read(display, buf, mr->buffer_size,
497 mr->x, mr->y, mr->w, mr->h);
498
499 if (r > 0) {
500 if (copy_to_user(mr->buffer, buf, r))
501 r = -EFAULT;
502 }
503
504 vfree(buf);
505
506 return r;
507 }
508
omapfb_get_ovl_colormode(struct omapfb2_device * fbdev,struct omapfb_ovl_colormode * mode)509 static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
510 struct omapfb_ovl_colormode *mode)
511 {
512 int ovl_idx = mode->overlay_idx;
513 int mode_idx = mode->mode_idx;
514 struct omap_overlay *ovl;
515 enum omap_color_mode supported_modes;
516 struct fb_var_screeninfo var;
517 int i;
518
519 if (ovl_idx >= fbdev->num_overlays)
520 return -ENODEV;
521 ovl = fbdev->overlays[ovl_idx];
522 supported_modes = ovl->supported_modes;
523
524 mode_idx = mode->mode_idx;
525
526 for (i = 0; i < sizeof(supported_modes) * 8; i++) {
527 if (!(supported_modes & (1 << i)))
528 continue;
529 /*
530 * It's possible that the FB doesn't support a mode
531 * that is supported by the overlay, so call the
532 * following here.
533 */
534 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
535 continue;
536
537 mode_idx--;
538 if (mode_idx < 0)
539 break;
540 }
541
542 if (i == sizeof(supported_modes) * 8)
543 return -ENOENT;
544
545 mode->bits_per_pixel = var.bits_per_pixel;
546 mode->nonstd = var.nonstd;
547 mode->red = var.red;
548 mode->green = var.green;
549 mode->blue = var.blue;
550 mode->transp = var.transp;
551
552 return 0;
553 }
554
omapfb_wait_for_go(struct fb_info * fbi)555 static int omapfb_wait_for_go(struct fb_info *fbi)
556 {
557 struct omapfb_info *ofbi = FB2OFB(fbi);
558 int r = 0;
559 int i;
560
561 for (i = 0; i < ofbi->num_overlays; ++i) {
562 struct omap_overlay *ovl = ofbi->overlays[i];
563 r = ovl->wait_for_go(ovl);
564 if (r)
565 break;
566 }
567
568 return r;
569 }
570
omapfb_ioctl(struct fb_info * fbi,unsigned int cmd,unsigned long arg)571 int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
572 {
573 struct omapfb_info *ofbi = FB2OFB(fbi);
574 struct omapfb2_device *fbdev = ofbi->fbdev;
575 struct omap_dss_device *display = fb2display(fbi);
576 struct omap_overlay_manager *mgr;
577
578 union {
579 struct omapfb_update_window_old uwnd_o;
580 struct omapfb_update_window uwnd;
581 struct omapfb_plane_info plane_info;
582 struct omapfb_caps caps;
583 struct omapfb_mem_info mem_info;
584 struct omapfb_color_key color_key;
585 struct omapfb_ovl_colormode ovl_colormode;
586 enum omapfb_update_mode update_mode;
587 int test_num;
588 struct omapfb_memory_read memory_read;
589 struct omapfb_vram_info vram_info;
590 struct omapfb_tearsync_info tearsync_info;
591 struct omapfb_display_info display_info;
592 u32 crt;
593 } p;
594
595 int r = 0;
596
597 memset(&p, 0, sizeof(p));
598
599 switch (cmd) {
600 case OMAPFB_SYNC_GFX:
601 DBG("ioctl SYNC_GFX\n");
602 if (!display || !display->driver->sync) {
603 /* DSS1 never returns an error here, so we neither */
604 /*r = -EINVAL;*/
605 break;
606 }
607
608 r = display->driver->sync(display);
609 break;
610
611 case OMAPFB_UPDATE_WINDOW_OLD:
612 DBG("ioctl UPDATE_WINDOW_OLD\n");
613 if (!display || !display->driver->update) {
614 r = -EINVAL;
615 break;
616 }
617
618 if (copy_from_user(&p.uwnd_o,
619 (void __user *)arg,
620 sizeof(p.uwnd_o))) {
621 r = -EFAULT;
622 break;
623 }
624
625 r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y,
626 p.uwnd_o.width, p.uwnd_o.height);
627 break;
628
629 case OMAPFB_UPDATE_WINDOW:
630 DBG("ioctl UPDATE_WINDOW\n");
631 if (!display || !display->driver->update) {
632 r = -EINVAL;
633 break;
634 }
635
636 if (copy_from_user(&p.uwnd, (void __user *)arg,
637 sizeof(p.uwnd))) {
638 r = -EFAULT;
639 break;
640 }
641
642 r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y,
643 p.uwnd.width, p.uwnd.height);
644 break;
645
646 case OMAPFB_SETUP_PLANE:
647 DBG("ioctl SETUP_PLANE\n");
648 if (copy_from_user(&p.plane_info, (void __user *)arg,
649 sizeof(p.plane_info)))
650 r = -EFAULT;
651 else
652 r = omapfb_setup_plane(fbi, &p.plane_info);
653 break;
654
655 case OMAPFB_QUERY_PLANE:
656 DBG("ioctl QUERY_PLANE\n");
657 r = omapfb_query_plane(fbi, &p.plane_info);
658 if (r < 0)
659 break;
660 if (copy_to_user((void __user *)arg, &p.plane_info,
661 sizeof(p.plane_info)))
662 r = -EFAULT;
663 break;
664
665 case OMAPFB_SETUP_MEM:
666 DBG("ioctl SETUP_MEM\n");
667 if (copy_from_user(&p.mem_info, (void __user *)arg,
668 sizeof(p.mem_info)))
669 r = -EFAULT;
670 else
671 r = omapfb_setup_mem(fbi, &p.mem_info);
672 break;
673
674 case OMAPFB_QUERY_MEM:
675 DBG("ioctl QUERY_MEM\n");
676 r = omapfb_query_mem(fbi, &p.mem_info);
677 if (r < 0)
678 break;
679 if (copy_to_user((void __user *)arg, &p.mem_info,
680 sizeof(p.mem_info)))
681 r = -EFAULT;
682 break;
683
684 case OMAPFB_GET_CAPS:
685 DBG("ioctl GET_CAPS\n");
686 if (!display) {
687 r = -EINVAL;
688 break;
689 }
690
691 memset(&p.caps, 0, sizeof(p.caps));
692 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
693 p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
694 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
695 p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
696
697 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
698 r = -EFAULT;
699 break;
700
701 case OMAPFB_GET_OVERLAY_COLORMODE:
702 DBG("ioctl GET_OVERLAY_COLORMODE\n");
703 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
704 sizeof(p.ovl_colormode))) {
705 r = -EFAULT;
706 break;
707 }
708 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
709 if (r < 0)
710 break;
711 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
712 sizeof(p.ovl_colormode)))
713 r = -EFAULT;
714 break;
715
716 case OMAPFB_SET_UPDATE_MODE:
717 DBG("ioctl SET_UPDATE_MODE\n");
718 if (get_user(p.update_mode, (int __user *)arg))
719 r = -EFAULT;
720 else
721 r = omapfb_set_update_mode(fbi, p.update_mode);
722 break;
723
724 case OMAPFB_GET_UPDATE_MODE:
725 DBG("ioctl GET_UPDATE_MODE\n");
726 r = omapfb_get_update_mode(fbi, &p.update_mode);
727 if (r)
728 break;
729 if (put_user(p.update_mode,
730 (enum omapfb_update_mode __user *)arg))
731 r = -EFAULT;
732 break;
733
734 case OMAPFB_SET_COLOR_KEY:
735 DBG("ioctl SET_COLOR_KEY\n");
736 if (copy_from_user(&p.color_key, (void __user *)arg,
737 sizeof(p.color_key)))
738 r = -EFAULT;
739 else
740 r = omapfb_set_color_key(fbi, &p.color_key);
741 break;
742
743 case OMAPFB_GET_COLOR_KEY:
744 DBG("ioctl GET_COLOR_KEY\n");
745 r = omapfb_get_color_key(fbi, &p.color_key);
746 if (r)
747 break;
748 if (copy_to_user((void __user *)arg, &p.color_key,
749 sizeof(p.color_key)))
750 r = -EFAULT;
751 break;
752
753 case FBIO_WAITFORVSYNC:
754 if (get_user(p.crt, (__u32 __user *)arg)) {
755 r = -EFAULT;
756 break;
757 }
758 if (p.crt != 0) {
759 r = -ENODEV;
760 break;
761 }
762 fallthrough;
763
764 case OMAPFB_WAITFORVSYNC:
765 DBG("ioctl WAITFORVSYNC\n");
766
767 if (!display) {
768 r = -EINVAL;
769 break;
770 }
771
772 mgr = omapdss_find_mgr_from_display(display);
773 if (!mgr) {
774 r = -EINVAL;
775 break;
776 }
777
778 r = mgr->wait_for_vsync(mgr);
779 break;
780
781 case OMAPFB_WAITFORGO:
782 DBG("ioctl WAITFORGO\n");
783 if (!display) {
784 r = -EINVAL;
785 break;
786 }
787
788 r = omapfb_wait_for_go(fbi);
789 break;
790
791 /* LCD and CTRL tests do the same thing for backward
792 * compatibility */
793 case OMAPFB_LCD_TEST:
794 DBG("ioctl LCD_TEST\n");
795 if (get_user(p.test_num, (int __user *)arg)) {
796 r = -EFAULT;
797 break;
798 }
799 if (!display || !display->driver->run_test) {
800 r = -EINVAL;
801 break;
802 }
803
804 r = display->driver->run_test(display, p.test_num);
805
806 break;
807
808 case OMAPFB_CTRL_TEST:
809 DBG("ioctl CTRL_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_MEMORY_READ:
824 DBG("ioctl MEMORY_READ\n");
825
826 if (copy_from_user(&p.memory_read, (void __user *)arg,
827 sizeof(p.memory_read))) {
828 r = -EFAULT;
829 break;
830 }
831
832 r = omapfb_memory_read(fbi, &p.memory_read);
833
834 break;
835
836 case OMAPFB_GET_VRAM_INFO: {
837 DBG("ioctl GET_VRAM_INFO\n");
838
839 /*
840 * We don't have the ability to get this vram info anymore.
841 * Fill in something that should keep the applications working.
842 */
843 p.vram_info.total = SZ_1M * 64;
844 p.vram_info.free = SZ_1M * 64;
845 p.vram_info.largest_free_block = SZ_1M * 64;
846
847 if (copy_to_user((void __user *)arg, &p.vram_info,
848 sizeof(p.vram_info)))
849 r = -EFAULT;
850 break;
851 }
852
853 case OMAPFB_SET_TEARSYNC: {
854 DBG("ioctl SET_TEARSYNC\n");
855
856 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
857 sizeof(p.tearsync_info))) {
858 r = -EFAULT;
859 break;
860 }
861
862 if (!display || !display->driver->enable_te) {
863 r = -ENODEV;
864 break;
865 }
866
867 r = display->driver->enable_te(display,
868 !!p.tearsync_info.enabled);
869
870 break;
871 }
872
873 case OMAPFB_GET_DISPLAY_INFO: {
874 u16 xres, yres;
875
876 DBG("ioctl GET_DISPLAY_INFO\n");
877
878 if (display == NULL) {
879 r = -ENODEV;
880 break;
881 }
882
883 display->driver->get_resolution(display, &xres, &yres);
884
885 p.display_info.xres = xres;
886 p.display_info.yres = yres;
887
888 if (display->driver->get_dimensions) {
889 u32 w, h;
890 display->driver->get_dimensions(display, &w, &h);
891 p.display_info.width = w;
892 p.display_info.height = h;
893 } else {
894 p.display_info.width = 0;
895 p.display_info.height = 0;
896 }
897
898 if (copy_to_user((void __user *)arg, &p.display_info,
899 sizeof(p.display_info)))
900 r = -EFAULT;
901 break;
902 }
903
904 default:
905 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
906 r = -EINVAL;
907 }
908
909 if (r < 0)
910 DBG("ioctl failed: %d\n", r);
911
912 return r;
913 }
914
915
916