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 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 omapfb2_mem_region *rg;
218 if (mi->type != OMAPFB_MEMTYPE_SDRAM)
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 struct omap_overlay *ovl;
245 ovl = ofbi2->overlays[j];
246 if (ovl->is_enabled(ovl)) {
253 r = omapfb_realloc_fbmem(fbi, size, mi->type);
255 dev_err(fbdev->dev, "realloc fbmem failed\n");
260 atomic_dec(&rg->lock_count);
266 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
268 struct omapfb_info *ofbi = FB2OFB(fbi);
269 struct omapfb2_mem_region *rg;
271 rg = omapfb_get_mem_region(ofbi->region);
272 memset(mi, 0, sizeof(*mi));
277 omapfb_put_mem_region(rg);
282 static int omapfb_update_window_nolock(struct fb_info *fbi,
283 u32 x, u32 y, u32 w, u32 h)
285 struct omap_dss_device *display = fb2display(fbi);
291 if (w == 0 || h == 0)
294 display->driver->get_resolution(display, &dw, &dh);
296 if (x + w > dw || y + h > dh)
299 return display->driver->update(display, x, y, w, h);
302 /* This function is exported for SGX driver use */
303 int omapfb_update_window(struct fb_info *fbi,
304 u32 x, u32 y, u32 w, u32 h)
306 struct omapfb_info *ofbi = FB2OFB(fbi);
307 struct omapfb2_device *fbdev = ofbi->fbdev;
310 if (!lock_fb_info(fbi))
314 r = omapfb_update_window_nolock(fbi, x, y, w, h);
316 omapfb_unlock(fbdev);
321 EXPORT_SYMBOL(omapfb_update_window);
323 int omapfb_set_update_mode(struct fb_info *fbi,
324 enum omapfb_update_mode mode)
326 struct omap_dss_device *display = fb2display(fbi);
327 struct omapfb_info *ofbi = FB2OFB(fbi);
328 struct omapfb2_device *fbdev = ofbi->fbdev;
329 struct omapfb_display_data *d;
335 if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
340 d = get_display_data(fbdev, display);
342 if (d->update_mode == mode) {
343 omapfb_unlock(fbdev);
349 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
350 if (mode == OMAPFB_AUTO_UPDATE)
351 omapfb_start_auto_update(fbdev, display);
352 else /* MANUAL_UPDATE */
353 omapfb_stop_auto_update(fbdev, display);
355 d->update_mode = mode;
356 } else { /* AUTO_UPDATE */
357 if (mode == OMAPFB_MANUAL_UPDATE)
361 omapfb_unlock(fbdev);
366 int omapfb_get_update_mode(struct fb_info *fbi,
367 enum omapfb_update_mode *mode)
369 struct omap_dss_device *display = fb2display(fbi);
370 struct omapfb_info *ofbi = FB2OFB(fbi);
371 struct omapfb2_device *fbdev = ofbi->fbdev;
372 struct omapfb_display_data *d;
379 d = get_display_data(fbdev, display);
381 *mode = d->update_mode;
383 omapfb_unlock(fbdev);
388 /* XXX this color key handling is a hack... */
389 static struct omapfb_color_key omapfb_color_keys[2];
391 static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
392 struct omapfb_color_key *ck)
394 struct omap_overlay_manager_info info;
395 enum omap_dss_trans_key_type kt;
398 mgr->get_manager_info(mgr, &info);
400 if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
401 info.trans_enabled = false;
402 omapfb_color_keys[mgr->id] = *ck;
404 r = mgr->set_manager_info(mgr, &info);
413 switch (ck->key_type) {
414 case OMAPFB_COLOR_KEY_GFX_DST:
415 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
417 case OMAPFB_COLOR_KEY_VID_SRC:
418 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
424 info.default_color = ck->background;
425 info.trans_key = ck->trans_key;
426 info.trans_key_type = kt;
427 info.trans_enabled = true;
429 omapfb_color_keys[mgr->id] = *ck;
431 r = mgr->set_manager_info(mgr, &info);
440 static int omapfb_set_color_key(struct fb_info *fbi,
441 struct omapfb_color_key *ck)
443 struct omapfb_info *ofbi = FB2OFB(fbi);
444 struct omapfb2_device *fbdev = ofbi->fbdev;
447 struct omap_overlay_manager *mgr = NULL;
451 for (i = 0; i < ofbi->num_overlays; i++) {
452 if (ofbi->overlays[i]->manager) {
453 mgr = ofbi->overlays[i]->manager;
463 r = _omapfb_set_color_key(mgr, ck);
465 omapfb_unlock(fbdev);
470 static int omapfb_get_color_key(struct fb_info *fbi,
471 struct omapfb_color_key *ck)
473 struct omapfb_info *ofbi = FB2OFB(fbi);
474 struct omapfb2_device *fbdev = ofbi->fbdev;
475 struct omap_overlay_manager *mgr = NULL;
481 for (i = 0; i < ofbi->num_overlays; i++) {
482 if (ofbi->overlays[i]->manager) {
483 mgr = ofbi->overlays[i]->manager;
493 *ck = omapfb_color_keys[mgr->id];
495 omapfb_unlock(fbdev);
500 static int omapfb_memory_read(struct fb_info *fbi,
501 struct omapfb_memory_read *mr)
503 struct omap_dss_device *display = fb2display(fbi);
507 if (!display || !display->driver->memory_read)
510 if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
513 if (mr->w * mr->h * 3 > mr->buffer_size)
516 buf = vmalloc(mr->buffer_size);
518 DBG("vmalloc failed\n");
522 r = display->driver->memory_read(display, buf, mr->buffer_size,
523 mr->x, mr->y, mr->w, mr->h);
526 if (copy_to_user(mr->buffer, buf, mr->buffer_size))
535 static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
536 struct omapfb_ovl_colormode *mode)
538 int ovl_idx = mode->overlay_idx;
539 int mode_idx = mode->mode_idx;
540 struct omap_overlay *ovl;
541 enum omap_color_mode supported_modes;
542 struct fb_var_screeninfo var;
545 if (ovl_idx >= fbdev->num_overlays)
547 ovl = fbdev->overlays[ovl_idx];
548 supported_modes = ovl->supported_modes;
550 mode_idx = mode->mode_idx;
552 for (i = 0; i < sizeof(supported_modes) * 8; i++) {
553 if (!(supported_modes & (1 << i)))
556 * It's possible that the FB doesn't support a mode
557 * that is supported by the overlay, so call the
560 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
568 if (i == sizeof(supported_modes) * 8)
571 mode->bits_per_pixel = var.bits_per_pixel;
572 mode->nonstd = var.nonstd;
574 mode->green = var.green;
575 mode->blue = var.blue;
576 mode->transp = var.transp;
581 static int omapfb_wait_for_go(struct fb_info *fbi)
583 struct omapfb_info *ofbi = FB2OFB(fbi);
587 for (i = 0; i < ofbi->num_overlays; ++i) {
588 struct omap_overlay *ovl = ofbi->overlays[i];
589 r = ovl->wait_for_go(ovl);
597 int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
599 struct omapfb_info *ofbi = FB2OFB(fbi);
600 struct omapfb2_device *fbdev = ofbi->fbdev;
601 struct omap_dss_device *display = fb2display(fbi);
604 struct omapfb_update_window_old uwnd_o;
605 struct omapfb_update_window uwnd;
606 struct omapfb_plane_info plane_info;
607 struct omapfb_caps caps;
608 struct omapfb_mem_info mem_info;
609 struct omapfb_color_key color_key;
610 struct omapfb_ovl_colormode ovl_colormode;
611 enum omapfb_update_mode update_mode;
613 struct omapfb_memory_read memory_read;
614 struct omapfb_vram_info vram_info;
615 struct omapfb_tearsync_info tearsync_info;
616 struct omapfb_display_info display_info;
623 case OMAPFB_SYNC_GFX:
624 DBG("ioctl SYNC_GFX\n");
625 if (!display || !display->driver->sync) {
626 /* DSS1 never returns an error here, so we neither */
631 r = display->driver->sync(display);
634 case OMAPFB_UPDATE_WINDOW_OLD:
635 DBG("ioctl UPDATE_WINDOW_OLD\n");
636 if (!display || !display->driver->update) {
641 if (copy_from_user(&p.uwnd_o,
648 r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y,
649 p.uwnd_o.width, p.uwnd_o.height);
652 case OMAPFB_UPDATE_WINDOW:
653 DBG("ioctl UPDATE_WINDOW\n");
654 if (!display || !display->driver->update) {
659 if (copy_from_user(&p.uwnd, (void __user *)arg,
665 r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y,
666 p.uwnd.width, p.uwnd.height);
669 case OMAPFB_SETUP_PLANE:
670 DBG("ioctl SETUP_PLANE\n");
671 if (copy_from_user(&p.plane_info, (void __user *)arg,
672 sizeof(p.plane_info)))
675 r = omapfb_setup_plane(fbi, &p.plane_info);
678 case OMAPFB_QUERY_PLANE:
679 DBG("ioctl QUERY_PLANE\n");
680 r = omapfb_query_plane(fbi, &p.plane_info);
683 if (copy_to_user((void __user *)arg, &p.plane_info,
684 sizeof(p.plane_info)))
688 case OMAPFB_SETUP_MEM:
689 DBG("ioctl SETUP_MEM\n");
690 if (copy_from_user(&p.mem_info, (void __user *)arg,
694 r = omapfb_setup_mem(fbi, &p.mem_info);
697 case OMAPFB_QUERY_MEM:
698 DBG("ioctl QUERY_MEM\n");
699 r = omapfb_query_mem(fbi, &p.mem_info);
702 if (copy_to_user((void __user *)arg, &p.mem_info,
707 case OMAPFB_GET_CAPS:
708 DBG("ioctl GET_CAPS\n");
714 memset(&p.caps, 0, sizeof(p.caps));
715 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
716 p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
717 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
718 p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
720 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
724 case OMAPFB_GET_OVERLAY_COLORMODE:
725 DBG("ioctl GET_OVERLAY_COLORMODE\n");
726 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
727 sizeof(p.ovl_colormode))) {
731 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
734 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
735 sizeof(p.ovl_colormode)))
739 case OMAPFB_SET_UPDATE_MODE:
740 DBG("ioctl SET_UPDATE_MODE\n");
741 if (get_user(p.update_mode, (int __user *)arg))
744 r = omapfb_set_update_mode(fbi, p.update_mode);
747 case OMAPFB_GET_UPDATE_MODE:
748 DBG("ioctl GET_UPDATE_MODE\n");
749 r = omapfb_get_update_mode(fbi, &p.update_mode);
752 if (put_user(p.update_mode,
753 (enum omapfb_update_mode __user *)arg))
757 case OMAPFB_SET_COLOR_KEY:
758 DBG("ioctl SET_COLOR_KEY\n");
759 if (copy_from_user(&p.color_key, (void __user *)arg,
760 sizeof(p.color_key)))
763 r = omapfb_set_color_key(fbi, &p.color_key);
766 case OMAPFB_GET_COLOR_KEY:
767 DBG("ioctl GET_COLOR_KEY\n");
768 r = omapfb_get_color_key(fbi, &p.color_key);
771 if (copy_to_user((void __user *)arg, &p.color_key,
772 sizeof(p.color_key)))
776 case FBIO_WAITFORVSYNC:
777 if (get_user(p.crt, (__u32 __user *)arg)) {
787 case OMAPFB_WAITFORVSYNC:
788 DBG("ioctl WAITFORVSYNC\n");
794 r = display->manager->wait_for_vsync(display->manager);
797 case OMAPFB_WAITFORGO:
798 DBG("ioctl WAITFORGO\n");
804 r = omapfb_wait_for_go(fbi);
807 /* LCD and CTRL tests do the same thing for backward
809 case OMAPFB_LCD_TEST:
810 DBG("ioctl LCD_TEST\n");
811 if (get_user(p.test_num, (int __user *)arg)) {
815 if (!display || !display->driver->run_test) {
820 r = display->driver->run_test(display, p.test_num);
824 case OMAPFB_CTRL_TEST:
825 DBG("ioctl CTRL_TEST\n");
826 if (get_user(p.test_num, (int __user *)arg)) {
830 if (!display || !display->driver->run_test) {
835 r = display->driver->run_test(display, p.test_num);
839 case OMAPFB_MEMORY_READ:
840 DBG("ioctl MEMORY_READ\n");
842 if (copy_from_user(&p.memory_read, (void __user *)arg,
843 sizeof(p.memory_read))) {
848 r = omapfb_memory_read(fbi, &p.memory_read);
852 case OMAPFB_GET_VRAM_INFO: {
853 unsigned long vram, free, largest;
855 DBG("ioctl GET_VRAM_INFO\n");
857 omap_vram_get_info(&vram, &free, &largest);
858 p.vram_info.total = vram;
859 p.vram_info.free = free;
860 p.vram_info.largest_free_block = largest;
862 if (copy_to_user((void __user *)arg, &p.vram_info,
863 sizeof(p.vram_info)))
868 case OMAPFB_SET_TEARSYNC: {
869 DBG("ioctl SET_TEARSYNC\n");
871 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
872 sizeof(p.tearsync_info))) {
877 if (!display || !display->driver->enable_te) {
882 r = display->driver->enable_te(display,
883 !!p.tearsync_info.enabled);
888 case OMAPFB_GET_DISPLAY_INFO: {
891 DBG("ioctl GET_DISPLAY_INFO\n");
893 if (display == NULL) {
898 display->driver->get_resolution(display, &xres, &yres);
900 p.display_info.xres = xres;
901 p.display_info.yres = yres;
903 if (display->driver->get_dimensions) {
905 display->driver->get_dimensions(display, &w, &h);
906 p.display_info.width = w;
907 p.display_info.height = h;
909 p.display_info.width = 0;
910 p.display_info.height = 0;
913 if (copy_to_user((void __user *)arg, &p.display_info,
914 sizeof(p.display_info)))
920 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
925 DBG("ioctl failed: %d\n", r);