2 * linux/drivers/video/omap2/omapfb-ioctl.c
4 * Copyright (C) 2008 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
7 * Some code and ideas taken from drivers/video/omap/ driver
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.
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
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/>.
24 #include <linux/device.h>
25 #include <linux/uaccess.h>
26 #include <linux/platform_device.h>
28 #include <linux/omapfb.h>
29 #include <linux/vmalloc.h>
30 #include <linux/export.h>
31 #include <linux/sizes.h>
33 #include <video/omapdss.h>
34 #include <video/omapvrfb.h>
38 static u8 get_mem_idx(struct omapfb_info *ofbi)
40 if (ofbi->id == ofbi->region->id)
43 return OMAPFB_MEM_IDX_ENABLED | ofbi->region->id;
46 static struct omapfb2_mem_region *get_mem_region(struct omapfb_info *ofbi,
49 struct omapfb2_device *fbdev = ofbi->fbdev;
51 if (mem_idx & OMAPFB_MEM_IDX_ENABLED)
52 mem_idx &= OMAPFB_MEM_IDX_MASK;
56 if (mem_idx >= fbdev->num_fbs)
59 return &fbdev->regions[mem_idx];
62 static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
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;
71 DBG("omapfb_setup_plane\n");
73 if (ofbi->num_overlays == 0) {
78 /* XXX uses only the first overlay */
79 ovl = ofbi->overlays[0];
81 old_rg = ofbi->region;
82 new_rg = get_mem_region(ofbi, pi->mem_idx);
88 /* Take the locks in a specific order to keep lockdep happy */
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);
96 omapfb_get_mem_region(old_rg);
98 if (pi->enabled && !new_rg->size) {
100 * This plane's memory was freed, can't enable it
101 * until it's reallocated.
107 ovl->get_overlay_info(ovl, &old_info);
109 if (old_rg != new_rg) {
110 ofbi->region = new_rg;
115 r = ovl->disable(ovl);
121 r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y,
122 pi->out_width, pi->out_height);
126 struct omap_overlay_info info;
128 ovl->get_overlay_info(ovl, &info);
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;
135 r = ovl->set_overlay_info(ovl, &info);
141 r = ovl->manager->apply(ovl->manager);
147 r = ovl->enable(ovl);
152 /* Release the locks in a specific order to keep lockdep happy */
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);
160 omapfb_put_mem_region(old_rg);
165 if (old_rg != new_rg) {
166 ofbi->region = old_rg;
170 ovl->set_overlay_info(ovl, &old_info);
172 /* Release the locks in a specific order to keep lockdep happy */
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);
180 omapfb_put_mem_region(old_rg);
182 dev_err(fbdev->dev, "setup_plane failed\n");
187 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
189 struct omapfb_info *ofbi = FB2OFB(fbi);
191 if (ofbi->num_overlays == 0) {
192 memset(pi, 0, sizeof(*pi));
194 struct omap_overlay *ovl;
195 struct omap_overlay_info ovli;
197 ovl = ofbi->overlays[0];
198 ovl->get_overlay_info(ovl, &ovli);
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; /* xxx */
205 pi->mem_idx = get_mem_idx(ofbi);
206 pi->out_width = ovli.out_width;
207 pi->out_height = ovli.out_height;
213 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
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;
222 if (mi->type != OMAPFB_MEMTYPE_SDRAM)
225 size = PAGE_ALIGN(mi->size);
227 if (display && display->driver->sync)
228 display->driver->sync(display);
232 down_write_nested(&rg->lock, rg->id);
233 atomic_inc(&rg->lock_count);
235 if (rg->size == size && rg->type == mi->type)
238 if (atomic_read(&rg->map_count)) {
243 for (i = 0; i < fbdev->num_fbs; i++) {
244 struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
247 if (ofbi2->region != rg)
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)) {
260 r = omapfb_realloc_fbmem(fbi, size, mi->type);
262 dev_err(fbdev->dev, "realloc fbmem failed\n");
267 atomic_dec(&rg->lock_count);
273 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
275 struct omapfb_info *ofbi = FB2OFB(fbi);
276 struct omapfb2_mem_region *rg;
278 rg = omapfb_get_mem_region(ofbi->region);
279 memset(mi, 0, sizeof(*mi));
284 omapfb_put_mem_region(rg);
289 static int omapfb_update_window(struct fb_info *fbi,
290 u32 x, u32 y, u32 w, u32 h)
292 struct omap_dss_device *display = fb2display(fbi);
298 if (w == 0 || h == 0)
301 display->driver->get_resolution(display, &dw, &dh);
303 if (x + w > dw || y + h > dh)
306 return display->driver->update(display, x, y, w, h);
309 int omapfb_set_update_mode(struct fb_info *fbi,
310 enum omapfb_update_mode mode)
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;
321 if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
326 d = get_display_data(fbdev, display);
328 if (d->update_mode == mode) {
329 omapfb_unlock(fbdev);
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 /* MANUAL_UPDATE */
339 omapfb_stop_auto_update(fbdev, display);
341 d->update_mode = mode;
342 } else { /* AUTO_UPDATE */
343 if (mode == OMAPFB_MANUAL_UPDATE)
347 omapfb_unlock(fbdev);
352 int omapfb_get_update_mode(struct fb_info *fbi,
353 enum omapfb_update_mode *mode)
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;
365 d = get_display_data(fbdev, display);
367 *mode = d->update_mode;
369 omapfb_unlock(fbdev);
374 /* XXX this color key handling is a hack... */
375 static struct omapfb_color_key omapfb_color_keys[2];
377 static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
378 struct omapfb_color_key *ck)
380 struct omap_overlay_manager_info info;
381 enum omap_dss_trans_key_type kt;
384 mgr->get_manager_info(mgr, &info);
386 if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
387 info.trans_enabled = false;
388 omapfb_color_keys[mgr->id] = *ck;
390 r = mgr->set_manager_info(mgr, &info);
399 switch (ck->key_type) {
400 case OMAPFB_COLOR_KEY_GFX_DST:
401 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
403 case OMAPFB_COLOR_KEY_VID_SRC:
404 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
410 info.default_color = ck->background;
411 info.trans_key = ck->trans_key;
412 info.trans_key_type = kt;
413 info.trans_enabled = true;
415 omapfb_color_keys[mgr->id] = *ck;
417 r = mgr->set_manager_info(mgr, &info);
426 static int omapfb_set_color_key(struct fb_info *fbi,
427 struct omapfb_color_key *ck)
429 struct omapfb_info *ofbi = FB2OFB(fbi);
430 struct omapfb2_device *fbdev = ofbi->fbdev;
433 struct omap_overlay_manager *mgr = NULL;
437 for (i = 0; i < ofbi->num_overlays; i++) {
438 if (ofbi->overlays[i]->manager) {
439 mgr = ofbi->overlays[i]->manager;
449 r = _omapfb_set_color_key(mgr, ck);
451 omapfb_unlock(fbdev);
456 static int omapfb_get_color_key(struct fb_info *fbi,
457 struct omapfb_color_key *ck)
459 struct omapfb_info *ofbi = FB2OFB(fbi);
460 struct omapfb2_device *fbdev = ofbi->fbdev;
461 struct omap_overlay_manager *mgr = NULL;
467 for (i = 0; i < ofbi->num_overlays; i++) {
468 if (ofbi->overlays[i]->manager) {
469 mgr = ofbi->overlays[i]->manager;
479 *ck = omapfb_color_keys[mgr->id];
481 omapfb_unlock(fbdev);
486 static int omapfb_memory_read(struct fb_info *fbi,
487 struct omapfb_memory_read *mr)
489 struct omap_dss_device *display = fb2display(fbi);
493 if (!display || !display->driver->memory_read)
496 if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
499 if (mr->w * mr->h * 3 > mr->buffer_size)
502 buf = vmalloc(mr->buffer_size);
504 DBG("vmalloc failed\n");
508 r = display->driver->memory_read(display, buf, mr->buffer_size,
509 mr->x, mr->y, mr->w, mr->h);
512 if (copy_to_user(mr->buffer, buf, mr->buffer_size))
521 static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
522 struct omapfb_ovl_colormode *mode)
524 int ovl_idx = mode->overlay_idx;
525 int mode_idx = mode->mode_idx;
526 struct omap_overlay *ovl;
527 enum omap_color_mode supported_modes;
528 struct fb_var_screeninfo var;
531 if (ovl_idx >= fbdev->num_overlays)
533 ovl = fbdev->overlays[ovl_idx];
534 supported_modes = ovl->supported_modes;
536 mode_idx = mode->mode_idx;
538 for (i = 0; i < sizeof(supported_modes) * 8; i++) {
539 if (!(supported_modes & (1 << i)))
542 * It's possible that the FB doesn't support a mode
543 * that is supported by the overlay, so call the
546 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
554 if (i == sizeof(supported_modes) * 8)
557 mode->bits_per_pixel = var.bits_per_pixel;
558 mode->nonstd = var.nonstd;
560 mode->green = var.green;
561 mode->blue = var.blue;
562 mode->transp = var.transp;
567 static int omapfb_wait_for_go(struct fb_info *fbi)
569 struct omapfb_info *ofbi = FB2OFB(fbi);
573 for (i = 0; i < ofbi->num_overlays; ++i) {
574 struct omap_overlay *ovl = ofbi->overlays[i];
575 r = ovl->wait_for_go(ovl);
583 int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
585 struct omapfb_info *ofbi = FB2OFB(fbi);
586 struct omapfb2_device *fbdev = ofbi->fbdev;
587 struct omap_dss_device *display = fb2display(fbi);
588 struct omap_overlay_manager *mgr;
591 struct omapfb_update_window_old uwnd_o;
592 struct omapfb_update_window uwnd;
593 struct omapfb_plane_info plane_info;
594 struct omapfb_caps caps;
595 struct omapfb_mem_info mem_info;
596 struct omapfb_color_key color_key;
597 struct omapfb_ovl_colormode ovl_colormode;
598 enum omapfb_update_mode update_mode;
600 struct omapfb_memory_read memory_read;
601 struct omapfb_vram_info vram_info;
602 struct omapfb_tearsync_info tearsync_info;
603 struct omapfb_display_info display_info;
610 case OMAPFB_SYNC_GFX:
611 DBG("ioctl SYNC_GFX\n");
612 if (!display || !display->driver->sync) {
613 /* DSS1 never returns an error here, so we neither */
618 r = display->driver->sync(display);
621 case OMAPFB_UPDATE_WINDOW_OLD:
622 DBG("ioctl UPDATE_WINDOW_OLD\n");
623 if (!display || !display->driver->update) {
628 if (copy_from_user(&p.uwnd_o,
635 r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y,
636 p.uwnd_o.width, p.uwnd_o.height);
639 case OMAPFB_UPDATE_WINDOW:
640 DBG("ioctl UPDATE_WINDOW\n");
641 if (!display || !display->driver->update) {
646 if (copy_from_user(&p.uwnd, (void __user *)arg,
652 r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y,
653 p.uwnd.width, p.uwnd.height);
656 case OMAPFB_SETUP_PLANE:
657 DBG("ioctl SETUP_PLANE\n");
658 if (copy_from_user(&p.plane_info, (void __user *)arg,
659 sizeof(p.plane_info)))
662 r = omapfb_setup_plane(fbi, &p.plane_info);
665 case OMAPFB_QUERY_PLANE:
666 DBG("ioctl QUERY_PLANE\n");
667 r = omapfb_query_plane(fbi, &p.plane_info);
670 if (copy_to_user((void __user *)arg, &p.plane_info,
671 sizeof(p.plane_info)))
675 case OMAPFB_SETUP_MEM:
676 DBG("ioctl SETUP_MEM\n");
677 if (copy_from_user(&p.mem_info, (void __user *)arg,
681 r = omapfb_setup_mem(fbi, &p.mem_info);
684 case OMAPFB_QUERY_MEM:
685 DBG("ioctl QUERY_MEM\n");
686 r = omapfb_query_mem(fbi, &p.mem_info);
689 if (copy_to_user((void __user *)arg, &p.mem_info,
694 case OMAPFB_GET_CAPS:
695 DBG("ioctl GET_CAPS\n");
701 memset(&p.caps, 0, sizeof(p.caps));
702 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
703 p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
704 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
705 p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
707 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
711 case OMAPFB_GET_OVERLAY_COLORMODE:
712 DBG("ioctl GET_OVERLAY_COLORMODE\n");
713 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
714 sizeof(p.ovl_colormode))) {
718 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
721 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
722 sizeof(p.ovl_colormode)))
726 case OMAPFB_SET_UPDATE_MODE:
727 DBG("ioctl SET_UPDATE_MODE\n");
728 if (get_user(p.update_mode, (int __user *)arg))
731 r = omapfb_set_update_mode(fbi, p.update_mode);
734 case OMAPFB_GET_UPDATE_MODE:
735 DBG("ioctl GET_UPDATE_MODE\n");
736 r = omapfb_get_update_mode(fbi, &p.update_mode);
739 if (put_user(p.update_mode,
740 (enum omapfb_update_mode __user *)arg))
744 case OMAPFB_SET_COLOR_KEY:
745 DBG("ioctl SET_COLOR_KEY\n");
746 if (copy_from_user(&p.color_key, (void __user *)arg,
747 sizeof(p.color_key)))
750 r = omapfb_set_color_key(fbi, &p.color_key);
753 case OMAPFB_GET_COLOR_KEY:
754 DBG("ioctl GET_COLOR_KEY\n");
755 r = omapfb_get_color_key(fbi, &p.color_key);
758 if (copy_to_user((void __user *)arg, &p.color_key,
759 sizeof(p.color_key)))
763 case FBIO_WAITFORVSYNC:
764 if (get_user(p.crt, (__u32 __user *)arg)) {
774 case OMAPFB_WAITFORVSYNC:
775 DBG("ioctl WAITFORVSYNC\n");
782 mgr = omapdss_find_mgr_from_display(display);
788 r = mgr->wait_for_vsync(mgr);
791 case OMAPFB_WAITFORGO:
792 DBG("ioctl WAITFORGO\n");
798 r = omapfb_wait_for_go(fbi);
801 /* LCD and CTRL tests do the same thing for backward
803 case OMAPFB_LCD_TEST:
804 DBG("ioctl LCD_TEST\n");
805 if (get_user(p.test_num, (int __user *)arg)) {
809 if (!display || !display->driver->run_test) {
814 r = display->driver->run_test(display, p.test_num);
818 case OMAPFB_CTRL_TEST:
819 DBG("ioctl CTRL_TEST\n");
820 if (get_user(p.test_num, (int __user *)arg)) {
824 if (!display || !display->driver->run_test) {
829 r = display->driver->run_test(display, p.test_num);
833 case OMAPFB_MEMORY_READ:
834 DBG("ioctl MEMORY_READ\n");
836 if (copy_from_user(&p.memory_read, (void __user *)arg,
837 sizeof(p.memory_read))) {
842 r = omapfb_memory_read(fbi, &p.memory_read);
846 case OMAPFB_GET_VRAM_INFO: {
847 DBG("ioctl GET_VRAM_INFO\n");
850 * We don't have the ability to get this vram info anymore.
851 * Fill in something that should keep the applications working.
853 p.vram_info.total = SZ_1M * 64;
854 p.vram_info.free = SZ_1M * 64;
855 p.vram_info.largest_free_block = SZ_1M * 64;
857 if (copy_to_user((void __user *)arg, &p.vram_info,
858 sizeof(p.vram_info)))
863 case OMAPFB_SET_TEARSYNC: {
864 DBG("ioctl SET_TEARSYNC\n");
866 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
867 sizeof(p.tearsync_info))) {
872 if (!display || !display->driver->enable_te) {
877 r = display->driver->enable_te(display,
878 !!p.tearsync_info.enabled);
883 case OMAPFB_GET_DISPLAY_INFO: {
886 DBG("ioctl GET_DISPLAY_INFO\n");
888 if (display == NULL) {
893 display->driver->get_resolution(display, &xres, &yres);
895 p.display_info.xres = xres;
896 p.display_info.yres = yres;
898 if (display->driver->get_dimensions) {
900 display->driver->get_dimensions(display, &w, &h);
901 p.display_info.width = w;
902 p.display_info.height = h;
904 p.display_info.width = 0;
905 p.display_info.height = 0;
908 if (copy_to_user((void __user *)arg, &p.display_info,
909 sizeof(p.display_info)))
915 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
920 DBG("ioctl failed: %d\n", r);