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>
32 #include <video/omapdss.h>
33 #include <plat/vrfb.h>
34 #include <plat/vram.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 struct omap_overlay_info info;
117 r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y,
118 pi->out_width, pi->out_height);
122 ovl->get_overlay_info(ovl, &info);
125 info.enabled = pi->enabled;
126 r = ovl->set_overlay_info(ovl, &info);
131 struct omap_overlay_info info;
133 ovl->get_overlay_info(ovl, &info);
135 info.enabled = pi->enabled;
136 info.pos_x = pi->pos_x;
137 info.pos_y = pi->pos_y;
138 info.out_width = pi->out_width;
139 info.out_height = pi->out_height;
141 r = ovl->set_overlay_info(ovl, &info);
147 ovl->manager->apply(ovl->manager);
149 /* Release the locks in a specific order to keep lockdep happy */
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);
157 omapfb_put_mem_region(old_rg);
162 if (old_rg != new_rg) {
163 ofbi->region = old_rg;
167 ovl->set_overlay_info(ovl, &old_info);
169 /* Release the locks in a specific order to keep lockdep happy */
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);
177 omapfb_put_mem_region(old_rg);
179 dev_err(fbdev->dev, "setup_plane failed\n");
184 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
186 struct omapfb_info *ofbi = FB2OFB(fbi);
188 if (ofbi->num_overlays == 0) {
189 memset(pi, 0, sizeof(*pi));
191 struct omap_overlay *ovl;
192 struct omap_overlay_info *ovli;
194 ovl = ofbi->overlays[0];
197 pi->pos_x = ovli->pos_x;
198 pi->pos_y = ovli->pos_y;
199 pi->enabled = ovli->enabled;
200 pi->channel_out = 0; /* xxx */
202 pi->mem_idx = get_mem_idx(ofbi);
203 pi->out_width = ovli->out_width;
204 pi->out_height = ovli->out_height;
210 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
212 struct omapfb_info *ofbi = FB2OFB(fbi);
213 struct omapfb2_device *fbdev = ofbi->fbdev;
214 struct omapfb2_mem_region *rg;
218 if (mi->type > OMAPFB_MEMTYPE_MAX)
221 size = PAGE_ALIGN(mi->size);
225 down_write_nested(&rg->lock, rg->id);
226 atomic_inc(&rg->lock_count);
228 if (rg->size == size && rg->type == mi->type)
231 if (atomic_read(&rg->map_count)) {
236 for (i = 0; i < fbdev->num_fbs; i++) {
237 struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
240 if (ofbi2->region != rg)
243 for (j = 0; j < ofbi2->num_overlays; j++) {
244 if (ofbi2->overlays[j]->info.enabled) {
251 r = omapfb_realloc_fbmem(fbi, size, mi->type);
253 dev_err(fbdev->dev, "realloc fbmem failed\n");
258 atomic_dec(&rg->lock_count);
264 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
266 struct omapfb_info *ofbi = FB2OFB(fbi);
267 struct omapfb2_mem_region *rg;
269 rg = omapfb_get_mem_region(ofbi->region);
270 memset(mi, 0, sizeof(*mi));
275 omapfb_put_mem_region(rg);
280 static int omapfb_update_window_nolock(struct fb_info *fbi,
281 u32 x, u32 y, u32 w, u32 h)
283 struct omap_dss_device *display = fb2display(fbi);
289 if (w == 0 || h == 0)
292 display->driver->get_resolution(display, &dw, &dh);
294 if (x + w > dw || y + h > dh)
297 return display->driver->update(display, x, y, w, h);
300 /* This function is exported for SGX driver use */
301 int omapfb_update_window(struct fb_info *fbi,
302 u32 x, u32 y, u32 w, u32 h)
304 struct omapfb_info *ofbi = FB2OFB(fbi);
305 struct omapfb2_device *fbdev = ofbi->fbdev;
308 if (!lock_fb_info(fbi))
312 r = omapfb_update_window_nolock(fbi, x, y, w, h);
314 omapfb_unlock(fbdev);
319 EXPORT_SYMBOL(omapfb_update_window);
321 int omapfb_set_update_mode(struct fb_info *fbi,
322 enum omapfb_update_mode mode)
324 struct omap_dss_device *display = fb2display(fbi);
325 struct omapfb_info *ofbi = FB2OFB(fbi);
326 struct omapfb2_device *fbdev = ofbi->fbdev;
327 struct omapfb_display_data *d;
333 if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
338 d = get_display_data(fbdev, display);
340 if (d->update_mode == mode) {
341 omapfb_unlock(fbdev);
347 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
348 if (mode == OMAPFB_AUTO_UPDATE)
349 omapfb_start_auto_update(fbdev, display);
350 else /* MANUAL_UPDATE */
351 omapfb_stop_auto_update(fbdev, display);
353 d->update_mode = mode;
354 } else { /* AUTO_UPDATE */
355 if (mode == OMAPFB_MANUAL_UPDATE)
359 omapfb_unlock(fbdev);
364 int omapfb_get_update_mode(struct fb_info *fbi,
365 enum omapfb_update_mode *mode)
367 struct omap_dss_device *display = fb2display(fbi);
368 struct omapfb_info *ofbi = FB2OFB(fbi);
369 struct omapfb2_device *fbdev = ofbi->fbdev;
370 struct omapfb_display_data *d;
377 d = get_display_data(fbdev, display);
379 *mode = d->update_mode;
381 omapfb_unlock(fbdev);
386 /* XXX this color key handling is a hack... */
387 static struct omapfb_color_key omapfb_color_keys[2];
389 static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
390 struct omapfb_color_key *ck)
392 struct omap_overlay_manager_info info;
393 enum omap_dss_trans_key_type kt;
396 mgr->get_manager_info(mgr, &info);
398 if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
399 info.trans_enabled = false;
400 omapfb_color_keys[mgr->id] = *ck;
402 r = mgr->set_manager_info(mgr, &info);
411 switch (ck->key_type) {
412 case OMAPFB_COLOR_KEY_GFX_DST:
413 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
415 case OMAPFB_COLOR_KEY_VID_SRC:
416 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
422 info.default_color = ck->background;
423 info.trans_key = ck->trans_key;
424 info.trans_key_type = kt;
425 info.trans_enabled = true;
427 omapfb_color_keys[mgr->id] = *ck;
429 r = mgr->set_manager_info(mgr, &info);
438 static int omapfb_set_color_key(struct fb_info *fbi,
439 struct omapfb_color_key *ck)
441 struct omapfb_info *ofbi = FB2OFB(fbi);
442 struct omapfb2_device *fbdev = ofbi->fbdev;
445 struct omap_overlay_manager *mgr = NULL;
449 for (i = 0; i < ofbi->num_overlays; i++) {
450 if (ofbi->overlays[i]->manager) {
451 mgr = ofbi->overlays[i]->manager;
461 r = _omapfb_set_color_key(mgr, ck);
463 omapfb_unlock(fbdev);
468 static int omapfb_get_color_key(struct fb_info *fbi,
469 struct omapfb_color_key *ck)
471 struct omapfb_info *ofbi = FB2OFB(fbi);
472 struct omapfb2_device *fbdev = ofbi->fbdev;
473 struct omap_overlay_manager *mgr = NULL;
479 for (i = 0; i < ofbi->num_overlays; i++) {
480 if (ofbi->overlays[i]->manager) {
481 mgr = ofbi->overlays[i]->manager;
491 *ck = omapfb_color_keys[mgr->id];
493 omapfb_unlock(fbdev);
498 static int omapfb_memory_read(struct fb_info *fbi,
499 struct omapfb_memory_read *mr)
501 struct omap_dss_device *display = fb2display(fbi);
505 if (!display || !display->driver->memory_read)
508 if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
511 if (mr->w * mr->h * 3 > mr->buffer_size)
514 buf = vmalloc(mr->buffer_size);
516 DBG("vmalloc failed\n");
520 r = display->driver->memory_read(display, buf, mr->buffer_size,
521 mr->x, mr->y, mr->w, mr->h);
524 if (copy_to_user(mr->buffer, buf, mr->buffer_size))
533 static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
534 struct omapfb_ovl_colormode *mode)
536 int ovl_idx = mode->overlay_idx;
537 int mode_idx = mode->mode_idx;
538 struct omap_overlay *ovl;
539 enum omap_color_mode supported_modes;
540 struct fb_var_screeninfo var;
543 if (ovl_idx >= fbdev->num_overlays)
545 ovl = fbdev->overlays[ovl_idx];
546 supported_modes = ovl->supported_modes;
548 mode_idx = mode->mode_idx;
550 for (i = 0; i < sizeof(supported_modes) * 8; i++) {
551 if (!(supported_modes & (1 << i)))
554 * It's possible that the FB doesn't support a mode
555 * that is supported by the overlay, so call the
558 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
566 if (i == sizeof(supported_modes) * 8)
569 mode->bits_per_pixel = var.bits_per_pixel;
570 mode->nonstd = var.nonstd;
572 mode->green = var.green;
573 mode->blue = var.blue;
574 mode->transp = var.transp;
579 static int omapfb_wait_for_go(struct fb_info *fbi)
581 struct omapfb_info *ofbi = FB2OFB(fbi);
585 for (i = 0; i < ofbi->num_overlays; ++i) {
586 struct omap_overlay *ovl = ofbi->overlays[i];
587 r = ovl->wait_for_go(ovl);
595 int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
597 struct omapfb_info *ofbi = FB2OFB(fbi);
598 struct omapfb2_device *fbdev = ofbi->fbdev;
599 struct omap_dss_device *display = fb2display(fbi);
602 struct omapfb_update_window_old uwnd_o;
603 struct omapfb_update_window uwnd;
604 struct omapfb_plane_info plane_info;
605 struct omapfb_caps caps;
606 struct omapfb_mem_info mem_info;
607 struct omapfb_color_key color_key;
608 struct omapfb_ovl_colormode ovl_colormode;
609 enum omapfb_update_mode update_mode;
611 struct omapfb_memory_read memory_read;
612 struct omapfb_vram_info vram_info;
613 struct omapfb_tearsync_info tearsync_info;
614 struct omapfb_display_info display_info;
621 case OMAPFB_SYNC_GFX:
622 DBG("ioctl SYNC_GFX\n");
623 if (!display || !display->driver->sync) {
624 /* DSS1 never returns an error here, so we neither */
629 r = display->driver->sync(display);
632 case OMAPFB_UPDATE_WINDOW_OLD:
633 DBG("ioctl UPDATE_WINDOW_OLD\n");
634 if (!display || !display->driver->update) {
639 if (copy_from_user(&p.uwnd_o,
646 r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y,
647 p.uwnd_o.width, p.uwnd_o.height);
650 case OMAPFB_UPDATE_WINDOW:
651 DBG("ioctl UPDATE_WINDOW\n");
652 if (!display || !display->driver->update) {
657 if (copy_from_user(&p.uwnd, (void __user *)arg,
663 r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y,
664 p.uwnd.width, p.uwnd.height);
667 case OMAPFB_SETUP_PLANE:
668 DBG("ioctl SETUP_PLANE\n");
669 if (copy_from_user(&p.plane_info, (void __user *)arg,
670 sizeof(p.plane_info)))
673 r = omapfb_setup_plane(fbi, &p.plane_info);
676 case OMAPFB_QUERY_PLANE:
677 DBG("ioctl QUERY_PLANE\n");
678 r = omapfb_query_plane(fbi, &p.plane_info);
681 if (copy_to_user((void __user *)arg, &p.plane_info,
682 sizeof(p.plane_info)))
686 case OMAPFB_SETUP_MEM:
687 DBG("ioctl SETUP_MEM\n");
688 if (copy_from_user(&p.mem_info, (void __user *)arg,
692 r = omapfb_setup_mem(fbi, &p.mem_info);
695 case OMAPFB_QUERY_MEM:
696 DBG("ioctl QUERY_MEM\n");
697 r = omapfb_query_mem(fbi, &p.mem_info);
700 if (copy_to_user((void __user *)arg, &p.mem_info,
705 case OMAPFB_GET_CAPS:
706 DBG("ioctl GET_CAPS\n");
712 memset(&p.caps, 0, sizeof(p.caps));
713 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
714 p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
715 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
716 p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
718 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
722 case OMAPFB_GET_OVERLAY_COLORMODE:
723 DBG("ioctl GET_OVERLAY_COLORMODE\n");
724 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
725 sizeof(p.ovl_colormode))) {
729 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
732 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
733 sizeof(p.ovl_colormode)))
737 case OMAPFB_SET_UPDATE_MODE:
738 DBG("ioctl SET_UPDATE_MODE\n");
739 if (get_user(p.update_mode, (int __user *)arg))
742 r = omapfb_set_update_mode(fbi, p.update_mode);
745 case OMAPFB_GET_UPDATE_MODE:
746 DBG("ioctl GET_UPDATE_MODE\n");
747 r = omapfb_get_update_mode(fbi, &p.update_mode);
750 if (put_user(p.update_mode,
751 (enum omapfb_update_mode __user *)arg))
755 case OMAPFB_SET_COLOR_KEY:
756 DBG("ioctl SET_COLOR_KEY\n");
757 if (copy_from_user(&p.color_key, (void __user *)arg,
758 sizeof(p.color_key)))
761 r = omapfb_set_color_key(fbi, &p.color_key);
764 case OMAPFB_GET_COLOR_KEY:
765 DBG("ioctl GET_COLOR_KEY\n");
766 r = omapfb_get_color_key(fbi, &p.color_key);
769 if (copy_to_user((void __user *)arg, &p.color_key,
770 sizeof(p.color_key)))
774 case FBIO_WAITFORVSYNC:
775 if (get_user(p.crt, (__u32 __user *)arg)) {
785 case OMAPFB_WAITFORVSYNC:
786 DBG("ioctl WAITFORVSYNC\n");
792 r = display->manager->wait_for_vsync(display->manager);
795 case OMAPFB_WAITFORGO:
796 DBG("ioctl WAITFORGO\n");
802 r = omapfb_wait_for_go(fbi);
805 /* LCD and CTRL tests do the same thing for backward
807 case OMAPFB_LCD_TEST:
808 DBG("ioctl LCD_TEST\n");
809 if (get_user(p.test_num, (int __user *)arg)) {
813 if (!display || !display->driver->run_test) {
818 r = display->driver->run_test(display, p.test_num);
822 case OMAPFB_CTRL_TEST:
823 DBG("ioctl CTRL_TEST\n");
824 if (get_user(p.test_num, (int __user *)arg)) {
828 if (!display || !display->driver->run_test) {
833 r = display->driver->run_test(display, p.test_num);
837 case OMAPFB_MEMORY_READ:
838 DBG("ioctl MEMORY_READ\n");
840 if (copy_from_user(&p.memory_read, (void __user *)arg,
841 sizeof(p.memory_read))) {
846 r = omapfb_memory_read(fbi, &p.memory_read);
850 case OMAPFB_GET_VRAM_INFO: {
851 unsigned long vram, free, largest;
853 DBG("ioctl GET_VRAM_INFO\n");
855 omap_vram_get_info(&vram, &free, &largest);
856 p.vram_info.total = vram;
857 p.vram_info.free = free;
858 p.vram_info.largest_free_block = largest;
860 if (copy_to_user((void __user *)arg, &p.vram_info,
861 sizeof(p.vram_info)))
866 case OMAPFB_SET_TEARSYNC: {
867 DBG("ioctl SET_TEARSYNC\n");
869 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
870 sizeof(p.tearsync_info))) {
875 if (!display || !display->driver->enable_te) {
880 r = display->driver->enable_te(display,
881 !!p.tearsync_info.enabled);
886 case OMAPFB_GET_DISPLAY_INFO: {
889 DBG("ioctl GET_DISPLAY_INFO\n");
891 if (display == NULL) {
896 display->driver->get_resolution(display, &xres, &yres);
898 p.display_info.xres = xres;
899 p.display_info.yres = yres;
901 if (display->driver->get_dimensions) {
903 display->driver->get_dimensions(display, &w, &h);
904 p.display_info.width = w;
905 p.display_info.height = h;
907 p.display_info.width = 0;
908 p.display_info.height = 0;
911 if (copy_to_user((void __user *)arg, &p.display_info,
912 sizeof(p.display_info)))
918 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
923 DBG("ioctl failed: %d\n", r);