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>
37 static u8 get_mem_idx(struct omapfb_info *ofbi)
39 if (ofbi->id == ofbi->region->id)
42 return OMAPFB_MEM_IDX_ENABLED | ofbi->region->id;
45 static struct omapfb2_mem_region *get_mem_region(struct omapfb_info *ofbi,
48 struct omapfb2_device *fbdev = ofbi->fbdev;
50 if (mem_idx & OMAPFB_MEM_IDX_ENABLED)
51 mem_idx &= OMAPFB_MEM_IDX_MASK;
55 if (mem_idx >= fbdev->num_fbs)
58 return &fbdev->regions[mem_idx];
61 static int omapfb_setup_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
63 struct omapfb_info *ofbi = FB2OFB(fbi);
64 struct omapfb2_device *fbdev = ofbi->fbdev;
65 struct omap_overlay *ovl;
66 struct omap_overlay_info old_info;
67 struct omapfb2_mem_region *old_rg, *new_rg;
70 DBG("omapfb_setup_plane\n");
72 if (ofbi->num_overlays == 0) {
77 /* XXX uses only the first overlay */
78 ovl = ofbi->overlays[0];
80 old_rg = ofbi->region;
81 new_rg = get_mem_region(ofbi, pi->mem_idx);
87 /* Take the locks in a specific order to keep lockdep happy */
88 if (old_rg->id < new_rg->id) {
89 omapfb_get_mem_region(old_rg);
90 omapfb_get_mem_region(new_rg);
91 } else if (new_rg->id < old_rg->id) {
92 omapfb_get_mem_region(new_rg);
93 omapfb_get_mem_region(old_rg);
95 omapfb_get_mem_region(old_rg);
97 if (pi->enabled && !new_rg->size) {
99 * This plane's memory was freed, can't enable it
100 * until it's reallocated.
106 ovl->get_overlay_info(ovl, &old_info);
108 if (old_rg != new_rg) {
109 ofbi->region = new_rg;
114 struct omap_overlay_info info;
116 r = omapfb_setup_overlay(fbi, ovl, pi->pos_x, pi->pos_y,
117 pi->out_width, pi->out_height);
121 ovl->get_overlay_info(ovl, &info);
124 info.enabled = pi->enabled;
125 r = ovl->set_overlay_info(ovl, &info);
130 struct omap_overlay_info info;
132 ovl->get_overlay_info(ovl, &info);
134 info.enabled = pi->enabled;
135 info.pos_x = pi->pos_x;
136 info.pos_y = pi->pos_y;
137 info.out_width = pi->out_width;
138 info.out_height = pi->out_height;
140 r = ovl->set_overlay_info(ovl, &info);
146 ovl->manager->apply(ovl->manager);
148 /* Release the locks in a specific order to keep lockdep happy */
149 if (old_rg->id > new_rg->id) {
150 omapfb_put_mem_region(old_rg);
151 omapfb_put_mem_region(new_rg);
152 } else if (new_rg->id > old_rg->id) {
153 omapfb_put_mem_region(new_rg);
154 omapfb_put_mem_region(old_rg);
156 omapfb_put_mem_region(old_rg);
161 if (old_rg != new_rg) {
162 ofbi->region = old_rg;
166 ovl->set_overlay_info(ovl, &old_info);
168 /* Release the locks in a specific order to keep lockdep happy */
169 if (old_rg->id > new_rg->id) {
170 omapfb_put_mem_region(old_rg);
171 omapfb_put_mem_region(new_rg);
172 } else if (new_rg->id > old_rg->id) {
173 omapfb_put_mem_region(new_rg);
174 omapfb_put_mem_region(old_rg);
176 omapfb_put_mem_region(old_rg);
178 dev_err(fbdev->dev, "setup_plane failed\n");
183 static int omapfb_query_plane(struct fb_info *fbi, struct omapfb_plane_info *pi)
185 struct omapfb_info *ofbi = FB2OFB(fbi);
187 if (ofbi->num_overlays == 0) {
188 memset(pi, 0, sizeof(*pi));
190 struct omap_overlay *ovl;
191 struct omap_overlay_info *ovli;
193 ovl = ofbi->overlays[0];
196 pi->pos_x = ovli->pos_x;
197 pi->pos_y = ovli->pos_y;
198 pi->enabled = ovli->enabled;
199 pi->channel_out = 0; /* xxx */
201 pi->mem_idx = get_mem_idx(ofbi);
202 pi->out_width = ovli->out_width;
203 pi->out_height = ovli->out_height;
209 static int omapfb_setup_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
211 struct omapfb_info *ofbi = FB2OFB(fbi);
212 struct omapfb2_device *fbdev = ofbi->fbdev;
213 struct omapfb2_mem_region *rg;
217 if (mi->type > OMAPFB_MEMTYPE_MAX)
220 size = PAGE_ALIGN(mi->size);
224 down_write_nested(&rg->lock, rg->id);
225 atomic_inc(&rg->lock_count);
227 if (rg->size == size && rg->type == mi->type)
230 if (atomic_read(&rg->map_count)) {
235 for (i = 0; i < fbdev->num_fbs; i++) {
236 struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
239 if (ofbi2->region != rg)
242 for (j = 0; j < ofbi2->num_overlays; j++) {
243 if (ofbi2->overlays[j]->info.enabled) {
250 r = omapfb_realloc_fbmem(fbi, size, mi->type);
252 dev_err(fbdev->dev, "realloc fbmem failed\n");
257 atomic_dec(&rg->lock_count);
263 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
265 struct omapfb_info *ofbi = FB2OFB(fbi);
266 struct omapfb2_mem_region *rg;
268 rg = omapfb_get_mem_region(ofbi->region);
269 memset(mi, 0, sizeof(*mi));
274 omapfb_put_mem_region(rg);
279 static int omapfb_update_window_nolock(struct fb_info *fbi,
280 u32 x, u32 y, u32 w, u32 h)
282 struct omap_dss_device *display = fb2display(fbi);
288 if (w == 0 || h == 0)
291 display->driver->get_resolution(display, &dw, &dh);
293 if (x + w > dw || y + h > dh)
296 return display->driver->update(display, x, y, w, h);
299 /* This function is exported for SGX driver use */
300 int omapfb_update_window(struct fb_info *fbi,
301 u32 x, u32 y, u32 w, u32 h)
303 struct omapfb_info *ofbi = FB2OFB(fbi);
304 struct omapfb2_device *fbdev = ofbi->fbdev;
307 if (!lock_fb_info(fbi))
311 r = omapfb_update_window_nolock(fbi, x, y, w, h);
313 omapfb_unlock(fbdev);
318 EXPORT_SYMBOL(omapfb_update_window);
320 int omapfb_set_update_mode(struct fb_info *fbi,
321 enum omapfb_update_mode mode)
323 struct omap_dss_device *display = fb2display(fbi);
324 struct omapfb_info *ofbi = FB2OFB(fbi);
325 struct omapfb2_device *fbdev = ofbi->fbdev;
326 struct omapfb_display_data *d;
332 if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
337 d = get_display_data(fbdev, display);
339 if (d->update_mode == mode) {
340 omapfb_unlock(fbdev);
346 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
347 if (mode == OMAPFB_AUTO_UPDATE)
348 omapfb_start_auto_update(fbdev, display);
349 else /* MANUAL_UPDATE */
350 omapfb_stop_auto_update(fbdev, display);
352 d->update_mode = mode;
353 } else { /* AUTO_UPDATE */
354 if (mode == OMAPFB_MANUAL_UPDATE)
358 omapfb_unlock(fbdev);
363 int omapfb_get_update_mode(struct fb_info *fbi,
364 enum omapfb_update_mode *mode)
366 struct omap_dss_device *display = fb2display(fbi);
367 struct omapfb_info *ofbi = FB2OFB(fbi);
368 struct omapfb2_device *fbdev = ofbi->fbdev;
369 struct omapfb_display_data *d;
376 d = get_display_data(fbdev, display);
378 *mode = d->update_mode;
380 omapfb_unlock(fbdev);
385 /* XXX this color key handling is a hack... */
386 static struct omapfb_color_key omapfb_color_keys[2];
388 static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
389 struct omapfb_color_key *ck)
391 struct omap_overlay_manager_info info;
392 enum omap_dss_trans_key_type kt;
395 mgr->get_manager_info(mgr, &info);
397 if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
398 info.trans_enabled = false;
399 omapfb_color_keys[mgr->id] = *ck;
401 r = mgr->set_manager_info(mgr, &info);
410 switch (ck->key_type) {
411 case OMAPFB_COLOR_KEY_GFX_DST:
412 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
414 case OMAPFB_COLOR_KEY_VID_SRC:
415 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
421 info.default_color = ck->background;
422 info.trans_key = ck->trans_key;
423 info.trans_key_type = kt;
424 info.trans_enabled = true;
426 omapfb_color_keys[mgr->id] = *ck;
428 r = mgr->set_manager_info(mgr, &info);
437 static int omapfb_set_color_key(struct fb_info *fbi,
438 struct omapfb_color_key *ck)
440 struct omapfb_info *ofbi = FB2OFB(fbi);
441 struct omapfb2_device *fbdev = ofbi->fbdev;
444 struct omap_overlay_manager *mgr = NULL;
448 for (i = 0; i < ofbi->num_overlays; i++) {
449 if (ofbi->overlays[i]->manager) {
450 mgr = ofbi->overlays[i]->manager;
460 r = _omapfb_set_color_key(mgr, ck);
462 omapfb_unlock(fbdev);
467 static int omapfb_get_color_key(struct fb_info *fbi,
468 struct omapfb_color_key *ck)
470 struct omapfb_info *ofbi = FB2OFB(fbi);
471 struct omapfb2_device *fbdev = ofbi->fbdev;
472 struct omap_overlay_manager *mgr = NULL;
478 for (i = 0; i < ofbi->num_overlays; i++) {
479 if (ofbi->overlays[i]->manager) {
480 mgr = ofbi->overlays[i]->manager;
490 *ck = omapfb_color_keys[mgr->id];
492 omapfb_unlock(fbdev);
497 static int omapfb_memory_read(struct fb_info *fbi,
498 struct omapfb_memory_read *mr)
500 struct omap_dss_device *display = fb2display(fbi);
504 if (!display || !display->driver->memory_read)
507 if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
510 if (mr->w * mr->h * 3 > mr->buffer_size)
513 buf = vmalloc(mr->buffer_size);
515 DBG("vmalloc failed\n");
519 r = display->driver->memory_read(display, buf, mr->buffer_size,
520 mr->x, mr->y, mr->w, mr->h);
523 if (copy_to_user(mr->buffer, buf, mr->buffer_size))
532 static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
533 struct omapfb_ovl_colormode *mode)
535 int ovl_idx = mode->overlay_idx;
536 int mode_idx = mode->mode_idx;
537 struct omap_overlay *ovl;
538 enum omap_color_mode supported_modes;
539 struct fb_var_screeninfo var;
542 if (ovl_idx >= fbdev->num_overlays)
544 ovl = fbdev->overlays[ovl_idx];
545 supported_modes = ovl->supported_modes;
547 mode_idx = mode->mode_idx;
549 for (i = 0; i < sizeof(supported_modes) * 8; i++) {
550 if (!(supported_modes & (1 << i)))
553 * It's possible that the FB doesn't support a mode
554 * that is supported by the overlay, so call the
557 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
565 if (i == sizeof(supported_modes) * 8)
568 mode->bits_per_pixel = var.bits_per_pixel;
569 mode->nonstd = var.nonstd;
571 mode->green = var.green;
572 mode->blue = var.blue;
573 mode->transp = var.transp;
578 static int omapfb_wait_for_go(struct fb_info *fbi)
580 struct omapfb_info *ofbi = FB2OFB(fbi);
584 for (i = 0; i < ofbi->num_overlays; ++i) {
585 struct omap_overlay *ovl = ofbi->overlays[i];
586 r = ovl->wait_for_go(ovl);
594 static int omapfb_do_vsync(struct fb_info *fbi,
595 struct omap_dss_device *display, u32 *frame, bool force)
597 unsigned long timeout = usecs_to_jiffies(16667 * 2);
598 struct omapfb_info *ofbi = FB2OFB(fbi);
605 frame = &frame_dummy;
607 /* try to find the first enabled overlay+display pair */
608 for (i = 0; i < ofbi->num_overlays; i++) {
609 struct omap_overlay_manager *manager;
611 if (!ofbi->overlays[i]->info.enabled)
614 manager = ofbi->overlays[i]->manager;
618 if (manager->device->state
619 == OMAP_DSS_DISPLAY_ACTIVE)
621 display = manager->device;
626 if (display->type == OMAP_DISPLAY_TYPE_VENC)
629 r = dispc_runtime_get();
633 /* this is unsafe pandora hack, but should work as fb
634 * is compiled in (no worry about rmmod) and there
635 * is no way to rm fb instances at runtime */
639 u32 irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
640 r = omap_dispc_wait_for_irq_interruptible_timeout(irq,
642 /* there is no real frame counter for TV */
646 r = omap_dispc_wait_for_vsync_on_frame(frame,
650 if (!lock_fb_info(fbi))
651 printk(KERN_ERR "omapfb: lock_fb_info failed\n");
658 int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
660 struct omapfb_info *ofbi = FB2OFB(fbi);
661 struct omapfb2_device *fbdev = ofbi->fbdev;
662 struct omap_dss_device *display = fb2display(fbi);
665 struct omapfb_update_window_old uwnd_o;
666 struct omapfb_update_window uwnd;
667 struct omapfb_plane_info plane_info;
668 struct omapfb_caps caps;
669 struct omapfb_mem_info mem_info;
670 struct omapfb_color_key color_key;
671 struct omapfb_ovl_colormode ovl_colormode;
672 enum omapfb_update_mode update_mode;
674 struct omapfb_memory_read memory_read;
675 struct omapfb_vram_info vram_info;
676 struct omapfb_tearsync_info tearsync_info;
677 struct omapfb_display_info display_info;
685 case OMAPFB_SYNC_GFX:
686 DBG("ioctl SYNC_GFX\n");
687 if (!display || !display->driver->sync) {
688 /* DSS1 never returns an error here, so we neither */
693 r = display->driver->sync(display);
696 case OMAPFB_UPDATE_WINDOW_OLD:
697 DBG("ioctl UPDATE_WINDOW_OLD\n");
698 if (!display || !display->driver->update) {
703 if (copy_from_user(&p.uwnd_o,
710 r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y,
711 p.uwnd_o.width, p.uwnd_o.height);
714 case OMAPFB_UPDATE_WINDOW:
715 DBG("ioctl UPDATE_WINDOW\n");
716 if (!display || !display->driver->update) {
721 if (copy_from_user(&p.uwnd, (void __user *)arg,
727 r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y,
728 p.uwnd.width, p.uwnd.height);
731 case OMAPFB_SETUP_PLANE:
732 DBG("ioctl SETUP_PLANE\n");
733 if (copy_from_user(&p.plane_info, (void __user *)arg,
734 sizeof(p.plane_info)))
737 r = omapfb_setup_plane(fbi, &p.plane_info);
740 case OMAPFB_QUERY_PLANE:
741 DBG("ioctl QUERY_PLANE\n");
742 r = omapfb_query_plane(fbi, &p.plane_info);
745 if (copy_to_user((void __user *)arg, &p.plane_info,
746 sizeof(p.plane_info)))
750 case OMAPFB_SETUP_MEM:
751 DBG("ioctl SETUP_MEM\n");
752 if (copy_from_user(&p.mem_info, (void __user *)arg,
756 r = omapfb_setup_mem(fbi, &p.mem_info);
759 case OMAPFB_QUERY_MEM:
760 DBG("ioctl QUERY_MEM\n");
761 r = omapfb_query_mem(fbi, &p.mem_info);
764 if (copy_to_user((void __user *)arg, &p.mem_info,
769 case OMAPFB_GET_CAPS:
770 DBG("ioctl GET_CAPS\n");
776 memset(&p.caps, 0, sizeof(p.caps));
777 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
778 p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
779 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
780 p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
782 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
786 case OMAPFB_GET_OVERLAY_COLORMODE:
787 DBG("ioctl GET_OVERLAY_COLORMODE\n");
788 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
789 sizeof(p.ovl_colormode))) {
793 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
796 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
797 sizeof(p.ovl_colormode)))
801 case OMAPFB_SET_UPDATE_MODE:
802 DBG("ioctl SET_UPDATE_MODE\n");
803 if (get_user(p.update_mode, (int __user *)arg))
806 r = omapfb_set_update_mode(fbi, p.update_mode);
809 case OMAPFB_GET_UPDATE_MODE:
810 DBG("ioctl GET_UPDATE_MODE\n");
811 r = omapfb_get_update_mode(fbi, &p.update_mode);
814 if (put_user(p.update_mode,
815 (enum omapfb_update_mode __user *)arg))
819 case OMAPFB_SET_COLOR_KEY:
820 DBG("ioctl SET_COLOR_KEY\n");
821 if (copy_from_user(&p.color_key, (void __user *)arg,
822 sizeof(p.color_key)))
825 r = omapfb_set_color_key(fbi, &p.color_key);
828 case OMAPFB_GET_COLOR_KEY:
829 DBG("ioctl GET_COLOR_KEY\n");
830 r = omapfb_get_color_key(fbi, &p.color_key);
833 if (copy_to_user((void __user *)arg, &p.color_key,
834 sizeof(p.color_key)))
838 case FBIO_WAITFORVSYNC:
839 if (get_user(p.crt, (__u32 __user *)arg)) {
847 r = omapfb_do_vsync(fbi, display, NULL, true);
850 case OMAPFB_WAITFORVSYNC:
851 DBG("ioctl WAITFORVSYNC\n");
857 r = display->manager->wait_for_vsync(display->manager);
860 case OMAPFB_WAITFORGO:
861 DBG("ioctl WAITFORGO\n");
867 r = omapfb_wait_for_go(fbi);
870 case OMAPFB_WAITFORVSYNC_FRAME:
871 if (get_user(p.frame, (__u32 __user *)arg)) {
875 r = omapfb_do_vsync(fbi, display, &p.frame, false);
876 /* report the frame # regardless */
877 if (copy_to_user((void __user *)arg, &p.frame,
882 case OMAPFB_GET_LINE_STATUS:
883 r = omap_dispc_get_line_status();
886 if (copy_to_user((void __user *)arg, &r, sizeof(r)))
892 /* LCD and CTRL tests do the same thing for backward
894 case OMAPFB_LCD_TEST:
895 DBG("ioctl LCD_TEST\n");
896 if (get_user(p.test_num, (int __user *)arg)) {
900 if (!display || !display->driver->run_test) {
905 r = display->driver->run_test(display, p.test_num);
909 case OMAPFB_CTRL_TEST:
910 DBG("ioctl CTRL_TEST\n");
911 if (get_user(p.test_num, (int __user *)arg)) {
915 if (!display || !display->driver->run_test) {
920 r = display->driver->run_test(display, p.test_num);
924 case OMAPFB_MEMORY_READ:
925 DBG("ioctl MEMORY_READ\n");
927 if (copy_from_user(&p.memory_read, (void __user *)arg,
928 sizeof(p.memory_read))) {
933 r = omapfb_memory_read(fbi, &p.memory_read);
937 case OMAPFB_GET_VRAM_INFO: {
938 DBG("ioctl GET_VRAM_INFO\n");
941 * We don't have the ability to get this vram info anymore.
942 * Fill in something that should keep the applications working.
944 p.vram_info.total = SZ_1M * 64;
945 p.vram_info.free = SZ_1M * 64;
946 p.vram_info.largest_free_block = SZ_1M * 64;
948 if (copy_to_user((void __user *)arg, &p.vram_info,
949 sizeof(p.vram_info)))
954 case OMAPFB_SET_TEARSYNC: {
955 DBG("ioctl SET_TEARSYNC\n");
957 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
958 sizeof(p.tearsync_info))) {
963 if (!display || !display->driver->enable_te) {
968 r = display->driver->enable_te(display,
969 !!p.tearsync_info.enabled);
974 case OMAPFB_GET_DISPLAY_INFO: {
977 DBG("ioctl GET_DISPLAY_INFO\n");
979 if (display == NULL) {
984 display->driver->get_resolution(display, &xres, &yres);
986 p.display_info.xres = xres;
987 p.display_info.yres = yres;
989 if (display->driver->get_dimensions) {
991 display->driver->get_dimensions(display, &w, &h);
992 p.display_info.width = w;
993 p.display_info.height = h;
995 p.display_info.width = 0;
996 p.display_info.height = 0;
999 if (copy_to_user((void __user *)arg, &p.display_info,
1000 sizeof(p.display_info)))
1006 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
1011 DBG("ioctl failed: %d\n", r);