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path: root/drivers/video/omap2/omapfb/omapfb-ioctl.c
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Diffstat (limited to 'drivers/video/omap2/omapfb/omapfb-ioctl.c')
-rw-r--r--drivers/video/omap2/omapfb/omapfb-ioctl.c755
1 files changed, 755 insertions, 0 deletions
diff --git a/drivers/video/omap2/omapfb/omapfb-ioctl.c b/drivers/video/omap2/omapfb/omapfb-ioctl.c
new file mode 100644
index 000000000000..4c4bafdfaa43
--- /dev/null
+++ b/drivers/video/omap2/omapfb/omapfb-ioctl.c
@@ -0,0 +1,755 @@
1/*
2 * linux/drivers/video/omap2/omapfb-ioctl.c
3 *
4 * Copyright (C) 2008 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
6 *
7 * Some code and ideas taken from drivers/video/omap/ driver
8 * by Imre Deak.
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License version 2 as published by
12 * the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * more details.
18 *
19 * You should have received a copy of the GNU General Public License along with
20 * this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22
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
31#include <plat/display.h>
32#include <plat/vrfb.h>
33#include <plat/vram.h>
34
35#include "omapfb.h"
36
37static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
38{
39 struct omapfb_info *ofbi = FB2OFB(fbi);
40 struct omapfb2_device *fbdev = ofbi->fbdev;
41 struct omap_overlay *ovl;
42 struct omap_overlay_info info;
43 int r = 0;
44
45 DBG("omapfb_setup_plane\n");
46
47 if (ofbi->num_overlays != 1) {
48 r = -EINVAL;
49 goto out;
50 }
51
52 /* XXX uses only the first overlay */
53 ovl = ofbi->overlays[0];
54
55 if (pi->enabled && !ofbi->region.size) {
56 /*
57 * This plane's memory was freed, can't enable it
58 * until it's reallocated.
59 */
60 r = -EINVAL;
61 goto out;
62 }
63
64 ovl->get_overlay_info(ovl, &info);
65
66 info.pos_x = pi->pos_x;
67 info.pos_y = pi->pos_y;
68 info.out_width = pi->out_width;
69 info.out_height = pi->out_height;
70 info.enabled = pi->enabled;
71
72 r = ovl->set_overlay_info(ovl, &info);
73 if (r)
74 goto out;
75
76 if (ovl->manager) {
77 r = ovl->manager->apply(ovl->manager);
78 if (r)
79 goto out;
80 }
81
82out:
83 if (r)
84 dev_err(fbdev->dev, "setup_plane failed\n");
85 return r;
86}
87
88static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
89{
90 struct omapfb_info *ofbi = FB2OFB(fbi);
91
92 if (ofbi->num_overlays != 1) {
93 memset(pi, 0, sizeof(*pi));
94 } else {
95 struct omap_overlay_info *ovli;
96 struct omap_overlay *ovl;
97
98 ovl = ofbi->overlays[0];
99 ovli = &ovl->info;
100
101 pi->pos_x = ovli->pos_x;
102 pi->pos_y = ovli->pos_y;
103 pi->enabled = ovli->enabled;
104 pi->channel_out = 0; /* xxx */
105 pi->mirror = 0;
106 pi->out_width = ovli->out_width;
107 pi->out_height = ovli->out_height;
108 }
109
110 return 0;
111}
112
113static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
114{
115 struct omapfb_info *ofbi = FB2OFB(fbi);
116 struct omapfb2_device *fbdev = ofbi->fbdev;
117 struct omapfb2_mem_region *rg;
118 int r, i;
119 size_t size;
120
121 if (mi->type > OMAPFB_MEMTYPE_MAX)
122 return -EINVAL;
123
124 size = PAGE_ALIGN(mi->size);
125
126 rg = &ofbi->region;
127
128 for (i = 0; i < ofbi->num_overlays; i++) {
129 if (ofbi->overlays[i]->info.enabled)
130 return -EBUSY;
131 }
132
133 if (rg->size != size || rg->type != mi->type) {
134 r = omapfb_realloc_fbmem(fbi, size, mi->type);
135 if (r) {
136 dev_err(fbdev->dev, "realloc fbmem failed\n");
137 return r;
138 }
139 }
140
141 return 0;
142}
143
144static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
145{
146 struct omapfb_info *ofbi = FB2OFB(fbi);
147 struct omapfb2_mem_region *rg;
148
149 rg = &ofbi->region;
150 memset(mi, 0, sizeof(*mi));
151
152 mi->size = rg->size;
153 mi->type = rg->type;
154
155 return 0;
156}
157
158static int omapfb_update_window_nolock(struct fb_info *fbi,
159 u32 x, u32 y, u32 w, u32 h)
160{
161 struct omap_dss_device *display = fb2display(fbi);
162 u16 dw, dh;
163
164 if (!display)
165 return 0;
166
167 if (w == 0 || h == 0)
168 return 0;
169
170 display->get_resolution(display, &dw, &dh);
171
172 if (x + w > dw || y + h > dh)
173 return -EINVAL;
174
175 return display->update(display, x, y, w, h);
176}
177
178/* This function is exported for SGX driver use */
179int omapfb_update_window(struct fb_info *fbi,
180 u32 x, u32 y, u32 w, u32 h)
181{
182 struct omapfb_info *ofbi = FB2OFB(fbi);
183 struct omapfb2_device *fbdev = ofbi->fbdev;
184 int r;
185
186 omapfb_lock(fbdev);
187 lock_fb_info(fbi);
188
189 r = omapfb_update_window_nolock(fbi, x, y, w, h);
190
191 unlock_fb_info(fbi);
192 omapfb_unlock(fbdev);
193
194 return r;
195}
196EXPORT_SYMBOL(omapfb_update_window);
197
198static int omapfb_set_update_mode(struct fb_info *fbi,
199 enum omapfb_update_mode mode)
200{
201 struct omap_dss_device *display = fb2display(fbi);
202 enum omap_dss_update_mode um;
203 int r;
204
205 if (!display || !display->set_update_mode)
206 return -EINVAL;
207
208 switch (mode) {
209 case OMAPFB_UPDATE_DISABLED:
210 um = OMAP_DSS_UPDATE_DISABLED;
211 break;
212
213 case OMAPFB_AUTO_UPDATE:
214 um = OMAP_DSS_UPDATE_AUTO;
215 break;
216
217 case OMAPFB_MANUAL_UPDATE:
218 um = OMAP_DSS_UPDATE_MANUAL;
219 break;
220
221 default:
222 return -EINVAL;
223 }
224
225 r = display->set_update_mode(display, um);
226
227 return r;
228}
229
230static int omapfb_get_update_mode(struct fb_info *fbi,
231 enum omapfb_update_mode *mode)
232{
233 struct omap_dss_device *display = fb2display(fbi);
234 enum omap_dss_update_mode m;
235
236 if (!display || !display->get_update_mode)
237 return -EINVAL;
238
239 m = display->get_update_mode(display);
240
241 switch (m) {
242 case OMAP_DSS_UPDATE_DISABLED:
243 *mode = OMAPFB_UPDATE_DISABLED;
244 break;
245 case OMAP_DSS_UPDATE_AUTO:
246 *mode = OMAPFB_AUTO_UPDATE;
247 break;
248 case OMAP_DSS_UPDATE_MANUAL:
249 *mode = OMAPFB_MANUAL_UPDATE;
250 break;
251 default:
252 BUG();
253 }
254
255 return 0;
256}
257
258/* XXX this color key handling is a hack... */
259static struct omapfb_color_key omapfb_color_keys[2];
260
261static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
262 struct omapfb_color_key *ck)
263{
264 struct omap_overlay_manager_info info;
265 enum omap_dss_trans_key_type kt;
266 int r;
267
268 mgr->get_manager_info(mgr, &info);
269
270 if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
271 info.trans_enabled = false;
272 omapfb_color_keys[mgr->id] = *ck;
273
274 r = mgr->set_manager_info(mgr, &info);
275 if (r)
276 return r;
277
278 r = mgr->apply(mgr);
279
280 return r;
281 }
282
283 switch (ck->key_type) {
284 case OMAPFB_COLOR_KEY_GFX_DST:
285 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
286 break;
287 case OMAPFB_COLOR_KEY_VID_SRC:
288 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
289 break;
290 default:
291 return -EINVAL;
292 }
293
294 info.default_color = ck->background;
295 info.trans_key = ck->trans_key;
296 info.trans_key_type = kt;
297 info.trans_enabled = true;
298
299 omapfb_color_keys[mgr->id] = *ck;
300
301 r = mgr->set_manager_info(mgr, &info);
302 if (r)
303 return r;
304
305 r = mgr->apply(mgr);
306
307 return r;
308}
309
310static int omapfb_set_color_key(struct fb_info *fbi,
311 struct omapfb_color_key *ck)
312{
313 struct omapfb_info *ofbi = FB2OFB(fbi);
314 struct omapfb2_device *fbdev = ofbi->fbdev;
315 int r;
316 int i;
317 struct omap_overlay_manager *mgr = NULL;
318
319 omapfb_lock(fbdev);
320
321 for (i = 0; i < ofbi->num_overlays; i++) {
322 if (ofbi->overlays[i]->manager) {
323 mgr = ofbi->overlays[i]->manager;
324 break;
325 }
326 }
327
328 if (!mgr) {
329 r = -EINVAL;
330 goto err;
331 }
332
333 r = _omapfb_set_color_key(mgr, ck);
334err:
335 omapfb_unlock(fbdev);
336
337 return r;
338}
339
340static int omapfb_get_color_key(struct fb_info *fbi,
341 struct omapfb_color_key *ck)
342{
343 struct omapfb_info *ofbi = FB2OFB(fbi);
344 struct omapfb2_device *fbdev = ofbi->fbdev;
345 struct omap_overlay_manager *mgr = NULL;
346 int r = 0;
347 int i;
348
349 omapfb_lock(fbdev);
350
351 for (i = 0; i < ofbi->num_overlays; i++) {
352 if (ofbi->overlays[i]->manager) {
353 mgr = ofbi->overlays[i]->manager;
354 break;
355 }
356 }
357
358 if (!mgr) {
359 r = -EINVAL;
360 goto err;
361 }
362
363 *ck = omapfb_color_keys[mgr->id];
364err:
365 omapfb_unlock(fbdev);
366
367 return r;
368}
369
370static int omapfb_memory_read(struct fb_info *fbi,
371 struct omapfb_memory_read *mr)
372{
373 struct omap_dss_device *display = fb2display(fbi);
374 void *buf;
375 int r;
376
377 if (!display || !display->memory_read)
378 return -ENOENT;
379
380 if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
381 return -EFAULT;
382
383 if (mr->w * mr->h * 3 > mr->buffer_size)
384 return -EINVAL;
385
386 buf = vmalloc(mr->buffer_size);
387 if (!buf) {
388 DBG("vmalloc failed\n");
389 return -ENOMEM;
390 }
391
392 r = display->memory_read(display, buf, mr->buffer_size,
393 mr->x, mr->y, mr->w, mr->h);
394
395 if (r > 0) {
396 if (copy_to_user(mr->buffer, buf, mr->buffer_size))
397 r = -EFAULT;
398 }
399
400 vfree(buf);
401
402 return r;
403}
404
405static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
406 struct omapfb_ovl_colormode *mode)
407{
408 int ovl_idx = mode->overlay_idx;
409 int mode_idx = mode->mode_idx;
410 struct omap_overlay *ovl;
411 enum omap_color_mode supported_modes;
412 struct fb_var_screeninfo var;
413 int i;
414
415 if (ovl_idx >= fbdev->num_overlays)
416 return -ENODEV;
417 ovl = fbdev->overlays[ovl_idx];
418 supported_modes = ovl->supported_modes;
419
420 mode_idx = mode->mode_idx;
421
422 for (i = 0; i < sizeof(supported_modes) * 8; i++) {
423 if (!(supported_modes & (1 << i)))
424 continue;
425 /*
426 * It's possible that the FB doesn't support a mode
427 * that is supported by the overlay, so call the
428 * following here.
429 */
430 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
431 continue;
432
433 mode_idx--;
434 if (mode_idx < 0)
435 break;
436 }
437
438 if (i == sizeof(supported_modes) * 8)
439 return -ENOENT;
440
441 mode->bits_per_pixel = var.bits_per_pixel;
442 mode->nonstd = var.nonstd;
443 mode->red = var.red;
444 mode->green = var.green;
445 mode->blue = var.blue;
446 mode->transp = var.transp;
447
448 return 0;
449}
450
451static int omapfb_wait_for_go(struct fb_info *fbi)
452{
453 struct omapfb_info *ofbi = FB2OFB(fbi);
454 int r = 0;
455 int i;
456
457 for (i = 0; i < ofbi->num_overlays; ++i) {
458 struct omap_overlay *ovl = ofbi->overlays[i];
459 r = ovl->wait_for_go(ovl);
460 if (r)
461 break;
462 }
463
464 return r;
465}
466
467int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
468{
469 struct omapfb_info *ofbi = FB2OFB(fbi);
470 struct omapfb2_device *fbdev = ofbi->fbdev;
471 struct omap_dss_device *display = fb2display(fbi);
472
473 union {
474 struct omapfb_update_window_old uwnd_o;
475 struct omapfb_update_window uwnd;
476 struct omapfb_plane_info plane_info;
477 struct omapfb_caps caps;
478 struct omapfb_mem_info mem_info;
479 struct omapfb_color_key color_key;
480 struct omapfb_ovl_colormode ovl_colormode;
481 enum omapfb_update_mode update_mode;
482 int test_num;
483 struct omapfb_memory_read memory_read;
484 struct omapfb_vram_info vram_info;
485 struct omapfb_tearsync_info tearsync_info;
486 } p;
487
488 int r = 0;
489
490 switch (cmd) {
491 case OMAPFB_SYNC_GFX:
492 DBG("ioctl SYNC_GFX\n");
493 if (!display || !display->sync) {
494 /* DSS1 never returns an error here, so we neither */
495 /*r = -EINVAL;*/
496 break;
497 }
498
499 r = display->sync(display);
500 break;
501
502 case OMAPFB_UPDATE_WINDOW_OLD:
503 DBG("ioctl UPDATE_WINDOW_OLD\n");
504 if (!display || !display->update) {
505 r = -EINVAL;
506 break;
507 }
508
509 if (copy_from_user(&p.uwnd_o,
510 (void __user *)arg,
511 sizeof(p.uwnd_o))) {
512 r = -EFAULT;
513 break;
514 }
515
516 r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y,
517 p.uwnd_o.width, p.uwnd_o.height);
518 break;
519
520 case OMAPFB_UPDATE_WINDOW:
521 DBG("ioctl UPDATE_WINDOW\n");
522 if (!display || !display->update) {
523 r = -EINVAL;
524 break;
525 }
526
527 if (copy_from_user(&p.uwnd, (void __user *)arg,
528 sizeof(p.uwnd))) {
529 r = -EFAULT;
530 break;
531 }
532
533 r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y,
534 p.uwnd.width, p.uwnd.height);
535 break;
536
537 case OMAPFB_SETUP_PLANE:
538 DBG("ioctl SETUP_PLANE\n");
539 if (copy_from_user(&p.plane_info, (void __user *)arg,
540 sizeof(p.plane_info)))
541 r = -EFAULT;
542 else
543 r = omapfb_setup_plane(fbi, &p.plane_info);
544 break;
545
546 case OMAPFB_QUERY_PLANE:
547 DBG("ioctl QUERY_PLANE\n");
548 r = omapfb_query_plane(fbi, &p.plane_info);
549 if (r < 0)
550 break;
551 if (copy_to_user((void __user *)arg, &p.plane_info,
552 sizeof(p.plane_info)))
553 r = -EFAULT;
554 break;
555
556 case OMAPFB_SETUP_MEM:
557 DBG("ioctl SETUP_MEM\n");
558 if (copy_from_user(&p.mem_info, (void __user *)arg,
559 sizeof(p.mem_info)))
560 r = -EFAULT;
561 else
562 r = omapfb_setup_mem(fbi, &p.mem_info);
563 break;
564
565 case OMAPFB_QUERY_MEM:
566 DBG("ioctl QUERY_MEM\n");
567 r = omapfb_query_mem(fbi, &p.mem_info);
568 if (r < 0)
569 break;
570 if (copy_to_user((void __user *)arg, &p.mem_info,
571 sizeof(p.mem_info)))
572 r = -EFAULT;
573 break;
574
575 case OMAPFB_GET_CAPS:
576 DBG("ioctl GET_CAPS\n");
577 if (!display) {
578 r = -EINVAL;
579 break;
580 }
581
582 memset(&p.caps, 0, sizeof(p.caps));
583 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
584 p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
585 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
586 p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
587
588 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
589 r = -EFAULT;
590 break;
591
592 case OMAPFB_GET_OVERLAY_COLORMODE:
593 DBG("ioctl GET_OVERLAY_COLORMODE\n");
594 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
595 sizeof(p.ovl_colormode))) {
596 r = -EFAULT;
597 break;
598 }
599 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
600 if (r < 0)
601 break;
602 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
603 sizeof(p.ovl_colormode)))
604 r = -EFAULT;
605 break;
606
607 case OMAPFB_SET_UPDATE_MODE:
608 DBG("ioctl SET_UPDATE_MODE\n");
609 if (get_user(p.update_mode, (int __user *)arg))
610 r = -EFAULT;
611 else
612 r = omapfb_set_update_mode(fbi, p.update_mode);
613 break;
614
615 case OMAPFB_GET_UPDATE_MODE:
616 DBG("ioctl GET_UPDATE_MODE\n");
617 r = omapfb_get_update_mode(fbi, &p.update_mode);
618 if (r)
619 break;
620 if (put_user(p.update_mode,
621 (enum omapfb_update_mode __user *)arg))
622 r = -EFAULT;
623 break;
624
625 case OMAPFB_SET_COLOR_KEY:
626 DBG("ioctl SET_COLOR_KEY\n");
627 if (copy_from_user(&p.color_key, (void __user *)arg,
628 sizeof(p.color_key)))
629 r = -EFAULT;
630 else
631 r = omapfb_set_color_key(fbi, &p.color_key);
632 break;
633
634 case OMAPFB_GET_COLOR_KEY:
635 DBG("ioctl GET_COLOR_KEY\n");
636 r = omapfb_get_color_key(fbi, &p.color_key);
637 if (r)
638 break;
639 if (copy_to_user((void __user *)arg, &p.color_key,
640 sizeof(p.color_key)))
641 r = -EFAULT;
642 break;
643
644 case OMAPFB_WAITFORVSYNC:
645 DBG("ioctl WAITFORVSYNC\n");
646 if (!display) {
647 r = -EINVAL;
648 break;
649 }
650
651 r = display->wait_vsync(display);
652 break;
653
654 case OMAPFB_WAITFORGO:
655 DBG("ioctl WAITFORGO\n");
656 if (!display) {
657 r = -EINVAL;
658 break;
659 }
660
661 r = omapfb_wait_for_go(fbi);
662 break;
663
664 /* LCD and CTRL tests do the same thing for backward
665 * compatibility */
666 case OMAPFB_LCD_TEST:
667 DBG("ioctl LCD_TEST\n");
668 if (get_user(p.test_num, (int __user *)arg)) {
669 r = -EFAULT;
670 break;
671 }
672 if (!display || !display->run_test) {
673 r = -EINVAL;
674 break;
675 }
676
677 r = display->run_test(display, p.test_num);
678
679 break;
680
681 case OMAPFB_CTRL_TEST:
682 DBG("ioctl CTRL_TEST\n");
683 if (get_user(p.test_num, (int __user *)arg)) {
684 r = -EFAULT;
685 break;
686 }
687 if (!display || !display->run_test) {
688 r = -EINVAL;
689 break;
690 }
691
692 r = display->run_test(display, p.test_num);
693
694 break;
695
696 case OMAPFB_MEMORY_READ:
697 DBG("ioctl MEMORY_READ\n");
698
699 if (copy_from_user(&p.memory_read, (void __user *)arg,
700 sizeof(p.memory_read))) {
701 r = -EFAULT;
702 break;
703 }
704
705 r = omapfb_memory_read(fbi, &p.memory_read);
706
707 break;
708
709 case OMAPFB_GET_VRAM_INFO: {
710 unsigned long vram, free, largest;
711
712 DBG("ioctl GET_VRAM_INFO\n");
713
714 omap_vram_get_info(&vram, &free, &largest);
715 p.vram_info.total = vram;
716 p.vram_info.free = free;
717 p.vram_info.largest_free_block = largest;
718
719 if (copy_to_user((void __user *)arg, &p.vram_info,
720 sizeof(p.vram_info)))
721 r = -EFAULT;
722 break;
723 }
724
725 case OMAPFB_SET_TEARSYNC: {
726 DBG("ioctl SET_TEARSYNC\n");
727
728 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
729 sizeof(p.tearsync_info))) {
730 r = -EFAULT;
731 break;
732 }
733
734 if (!display->enable_te) {
735 r = -ENODEV;
736 break;
737 }
738
739 r = display->enable_te(display, !!p.tearsync_info.enabled);
740
741 break;
742 }
743
744 default:
745 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
746 r = -EINVAL;
747 }
748
749 if (r < 0)
750 DBG("ioctl failed: %d\n", r);
751
752 return r;
753}
754
755
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