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 ovl->manager->apply(ovl->manager);
144 r = ovl->enable(ovl);
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];
195 ovl->get_overlay_info(ovl, &ovli);
197 pi->pos_x = ovli.pos_x;
198 pi->pos_y = ovli.pos_y;
199 pi->enabled = ovl->is_enabled(ovl);
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 omap_dss_device *display = fb2display(fbi);
215 struct omapfb2_mem_region *rg;
219 if (mi->type != OMAPFB_MEMTYPE_SDRAM)
222 size = PAGE_ALIGN(mi->size);
224 if (display && display->driver->sync)
225 display->driver->sync(display);
229 down_write_nested(&rg->lock, rg->id);
230 atomic_inc(&rg->lock_count);
232 if (rg->size == size && rg->type == mi->type)
235 if (atomic_read(&rg->map_count)) {
240 for (i = 0; i < fbdev->num_fbs; i++) {
241 struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
244 if (ofbi2->region != rg)
247 for (j = 0; j < ofbi2->num_overlays; j++) {
248 struct omap_overlay *ovl;
249 ovl = ofbi2->overlays[j];
250 if (ovl->is_enabled(ovl)) {
257 r = omapfb_realloc_fbmem(fbi, size, mi->type);
259 dev_err(fbdev->dev, "realloc fbmem failed\n");
264 atomic_dec(&rg->lock_count);
270 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
272 struct omapfb_info *ofbi = FB2OFB(fbi);
273 struct omapfb2_mem_region *rg;
275 rg = omapfb_get_mem_region(ofbi->region);
276 memset(mi, 0, sizeof(*mi));
281 omapfb_put_mem_region(rg);
286 static int omapfb_update_window(struct fb_info *fbi,
287 u32 x, u32 y, u32 w, u32 h)
289 struct omap_dss_device *display = fb2display(fbi);
295 if (w == 0 || h == 0)
298 display->driver->get_resolution(display, &dw, &dh);
300 if (x + w > dw || y + h > dh)
303 return display->driver->update(display, x, y, w, h);
306 int omapfb_set_update_mode(struct fb_info *fbi,
307 enum omapfb_update_mode mode)
309 struct omap_dss_device *display = fb2display(fbi);
310 struct omapfb_info *ofbi = FB2OFB(fbi);
311 struct omapfb2_device *fbdev = ofbi->fbdev;
312 struct omapfb_display_data *d;
318 if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
323 d = get_display_data(fbdev, display);
325 if (d->update_mode == mode) {
326 omapfb_unlock(fbdev);
332 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
333 if (mode == OMAPFB_AUTO_UPDATE)
334 omapfb_start_auto_update(fbdev, display);
335 else /* MANUAL_UPDATE */
336 omapfb_stop_auto_update(fbdev, display);
338 d->update_mode = mode;
339 } else { /* AUTO_UPDATE */
340 if (mode == OMAPFB_MANUAL_UPDATE)
344 omapfb_unlock(fbdev);
349 int omapfb_get_update_mode(struct fb_info *fbi,
350 enum omapfb_update_mode *mode)
352 struct omap_dss_device *display = fb2display(fbi);
353 struct omapfb_info *ofbi = FB2OFB(fbi);
354 struct omapfb2_device *fbdev = ofbi->fbdev;
355 struct omapfb_display_data *d;
362 d = get_display_data(fbdev, display);
364 *mode = d->update_mode;
366 omapfb_unlock(fbdev);
371 /* XXX this color key handling is a hack... */
372 static struct omapfb_color_key omapfb_color_keys[2];
374 static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
375 struct omapfb_color_key *ck)
377 struct omap_overlay_manager_info info;
378 enum omap_dss_trans_key_type kt;
381 mgr->get_manager_info(mgr, &info);
383 if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
384 info.trans_enabled = false;
385 omapfb_color_keys[mgr->id] = *ck;
387 r = mgr->set_manager_info(mgr, &info);
396 switch (ck->key_type) {
397 case OMAPFB_COLOR_KEY_GFX_DST:
398 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
400 case OMAPFB_COLOR_KEY_VID_SRC:
401 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
407 info.default_color = ck->background;
408 info.trans_key = ck->trans_key;
409 info.trans_key_type = kt;
410 info.trans_enabled = true;
412 omapfb_color_keys[mgr->id] = *ck;
414 r = mgr->set_manager_info(mgr, &info);
423 static int omapfb_set_color_key(struct fb_info *fbi,
424 struct omapfb_color_key *ck)
426 struct omapfb_info *ofbi = FB2OFB(fbi);
427 struct omapfb2_device *fbdev = ofbi->fbdev;
430 struct omap_overlay_manager *mgr = NULL;
434 for (i = 0; i < ofbi->num_overlays; i++) {
435 if (ofbi->overlays[i]->manager) {
436 mgr = ofbi->overlays[i]->manager;
446 r = _omapfb_set_color_key(mgr, ck);
448 omapfb_unlock(fbdev);
453 static int omapfb_get_color_key(struct fb_info *fbi,
454 struct omapfb_color_key *ck)
456 struct omapfb_info *ofbi = FB2OFB(fbi);
457 struct omapfb2_device *fbdev = ofbi->fbdev;
458 struct omap_overlay_manager *mgr = NULL;
464 for (i = 0; i < ofbi->num_overlays; i++) {
465 if (ofbi->overlays[i]->manager) {
466 mgr = ofbi->overlays[i]->manager;
476 *ck = omapfb_color_keys[mgr->id];
478 omapfb_unlock(fbdev);
483 static int omapfb_memory_read(struct fb_info *fbi,
484 struct omapfb_memory_read *mr)
486 struct omap_dss_device *display = fb2display(fbi);
490 if (!display || !display->driver->memory_read)
493 if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
496 if (mr->w * mr->h * 3 > mr->buffer_size)
499 buf = vmalloc(mr->buffer_size);
501 DBG("vmalloc failed\n");
505 r = display->driver->memory_read(display, buf, mr->buffer_size,
506 mr->x, mr->y, mr->w, mr->h);
509 if (copy_to_user(mr->buffer, buf, mr->buffer_size))
518 static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
519 struct omapfb_ovl_colormode *mode)
521 int ovl_idx = mode->overlay_idx;
522 int mode_idx = mode->mode_idx;
523 struct omap_overlay *ovl;
524 enum omap_color_mode supported_modes;
525 struct fb_var_screeninfo var;
528 if (ovl_idx >= fbdev->num_overlays)
530 ovl = fbdev->overlays[ovl_idx];
531 supported_modes = ovl->supported_modes;
533 mode_idx = mode->mode_idx;
535 for (i = 0; i < sizeof(supported_modes) * 8; i++) {
536 if (!(supported_modes & (1 << i)))
539 * It's possible that the FB doesn't support a mode
540 * that is supported by the overlay, so call the
543 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
551 if (i == sizeof(supported_modes) * 8)
554 mode->bits_per_pixel = var.bits_per_pixel;
555 mode->nonstd = var.nonstd;
557 mode->green = var.green;
558 mode->blue = var.blue;
559 mode->transp = var.transp;
564 static int omapfb_wait_for_go(struct fb_info *fbi)
566 struct omapfb_info *ofbi = FB2OFB(fbi);
570 for (i = 0; i < ofbi->num_overlays; ++i) {
571 struct omap_overlay *ovl = ofbi->overlays[i];
572 r = ovl->wait_for_go(ovl);
580 int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
582 struct omapfb_info *ofbi = FB2OFB(fbi);
583 struct omapfb2_device *fbdev = ofbi->fbdev;
584 struct omap_dss_device *display = fb2display(fbi);
585 struct omap_overlay_manager *mgr;
588 struct omapfb_update_window_old uwnd_o;
589 struct omapfb_update_window uwnd;
590 struct omapfb_plane_info plane_info;
591 struct omapfb_caps caps;
592 struct omapfb_mem_info mem_info;
593 struct omapfb_color_key color_key;
594 struct omapfb_ovl_colormode ovl_colormode;
595 enum omapfb_update_mode update_mode;
597 struct omapfb_memory_read memory_read;
598 struct omapfb_vram_info vram_info;
599 struct omapfb_tearsync_info tearsync_info;
600 struct omapfb_display_info display_info;
607 case OMAPFB_SYNC_GFX:
608 DBG("ioctl SYNC_GFX\n");
609 if (!display || !display->driver->sync) {
610 /* DSS1 never returns an error here, so we neither */
615 r = display->driver->sync(display);
618 case OMAPFB_UPDATE_WINDOW_OLD:
619 DBG("ioctl UPDATE_WINDOW_OLD\n");
620 if (!display || !display->driver->update) {
625 if (copy_from_user(&p.uwnd_o,
632 r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y,
633 p.uwnd_o.width, p.uwnd_o.height);
636 case OMAPFB_UPDATE_WINDOW:
637 DBG("ioctl UPDATE_WINDOW\n");
638 if (!display || !display->driver->update) {
643 if (copy_from_user(&p.uwnd, (void __user *)arg,
649 r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y,
650 p.uwnd.width, p.uwnd.height);
653 case OMAPFB_SETUP_PLANE:
654 DBG("ioctl SETUP_PLANE\n");
655 if (copy_from_user(&p.plane_info, (void __user *)arg,
656 sizeof(p.plane_info)))
659 r = omapfb_setup_plane(fbi, &p.plane_info);
662 case OMAPFB_QUERY_PLANE:
663 DBG("ioctl QUERY_PLANE\n");
664 r = omapfb_query_plane(fbi, &p.plane_info);
667 if (copy_to_user((void __user *)arg, &p.plane_info,
668 sizeof(p.plane_info)))
672 case OMAPFB_SETUP_MEM:
673 DBG("ioctl SETUP_MEM\n");
674 if (copy_from_user(&p.mem_info, (void __user *)arg,
678 r = omapfb_setup_mem(fbi, &p.mem_info);
681 case OMAPFB_QUERY_MEM:
682 DBG("ioctl QUERY_MEM\n");
683 r = omapfb_query_mem(fbi, &p.mem_info);
686 if (copy_to_user((void __user *)arg, &p.mem_info,
691 case OMAPFB_GET_CAPS:
692 DBG("ioctl GET_CAPS\n");
698 memset(&p.caps, 0, sizeof(p.caps));
699 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
700 p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
701 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
702 p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
704 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
708 case OMAPFB_GET_OVERLAY_COLORMODE:
709 DBG("ioctl GET_OVERLAY_COLORMODE\n");
710 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
711 sizeof(p.ovl_colormode))) {
715 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
718 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
719 sizeof(p.ovl_colormode)))
723 case OMAPFB_SET_UPDATE_MODE:
724 DBG("ioctl SET_UPDATE_MODE\n");
725 if (get_user(p.update_mode, (int __user *)arg))
728 r = omapfb_set_update_mode(fbi, p.update_mode);
731 case OMAPFB_GET_UPDATE_MODE:
732 DBG("ioctl GET_UPDATE_MODE\n");
733 r = omapfb_get_update_mode(fbi, &p.update_mode);
736 if (put_user(p.update_mode,
737 (enum omapfb_update_mode __user *)arg))
741 case OMAPFB_SET_COLOR_KEY:
742 DBG("ioctl SET_COLOR_KEY\n");
743 if (copy_from_user(&p.color_key, (void __user *)arg,
744 sizeof(p.color_key)))
747 r = omapfb_set_color_key(fbi, &p.color_key);
750 case OMAPFB_GET_COLOR_KEY:
751 DBG("ioctl GET_COLOR_KEY\n");
752 r = omapfb_get_color_key(fbi, &p.color_key);
755 if (copy_to_user((void __user *)arg, &p.color_key,
756 sizeof(p.color_key)))
760 case FBIO_WAITFORVSYNC:
761 if (get_user(p.crt, (__u32 __user *)arg)) {
771 case OMAPFB_WAITFORVSYNC:
772 DBG("ioctl WAITFORVSYNC\n");
779 mgr = omapdss_find_mgr_from_display(display);
785 r = mgr->wait_for_vsync(mgr);
788 case OMAPFB_WAITFORGO:
789 DBG("ioctl WAITFORGO\n");
795 r = omapfb_wait_for_go(fbi);
798 /* LCD and CTRL tests do the same thing for backward
800 case OMAPFB_LCD_TEST:
801 DBG("ioctl LCD_TEST\n");
802 if (get_user(p.test_num, (int __user *)arg)) {
806 if (!display || !display->driver->run_test) {
811 r = display->driver->run_test(display, p.test_num);
815 case OMAPFB_CTRL_TEST:
816 DBG("ioctl CTRL_TEST\n");
817 if (get_user(p.test_num, (int __user *)arg)) {
821 if (!display || !display->driver->run_test) {
826 r = display->driver->run_test(display, p.test_num);
830 case OMAPFB_MEMORY_READ:
831 DBG("ioctl MEMORY_READ\n");
833 if (copy_from_user(&p.memory_read, (void __user *)arg,
834 sizeof(p.memory_read))) {
839 r = omapfb_memory_read(fbi, &p.memory_read);
843 case OMAPFB_GET_VRAM_INFO: {
844 DBG("ioctl GET_VRAM_INFO\n");
847 * We don't have the ability to get this vram info anymore.
848 * Fill in something that should keep the applications working.
850 p.vram_info.total = SZ_1M * 64;
851 p.vram_info.free = SZ_1M * 64;
852 p.vram_info.largest_free_block = SZ_1M * 64;
854 if (copy_to_user((void __user *)arg, &p.vram_info,
855 sizeof(p.vram_info)))
860 case OMAPFB_SET_TEARSYNC: {
861 DBG("ioctl SET_TEARSYNC\n");
863 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
864 sizeof(p.tearsync_info))) {
869 if (!display || !display->driver->enable_te) {
874 r = display->driver->enable_te(display,
875 !!p.tearsync_info.enabled);
880 case OMAPFB_GET_DISPLAY_INFO: {
883 DBG("ioctl GET_DISPLAY_INFO\n");
885 if (display == NULL) {
890 display->driver->get_resolution(display, &xres, &yres);
892 p.display_info.xres = xres;
893 p.display_info.yres = yres;
895 if (display->driver->get_dimensions) {
897 display->driver->get_dimensions(display, &w, &h);
898 p.display_info.width = w;
899 p.display_info.height = h;
901 p.display_info.width = 0;
902 p.display_info.height = 0;
905 if (copy_to_user((void __user *)arg, &p.display_info,
906 sizeof(p.display_info)))
912 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
917 DBG("ioctl failed: %d\n", r);