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 != 1) {
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 != 1) {
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 (atomic_read(&rg->map_count)) {
233 for (i = 0; i < fbdev->num_fbs; i++) {
234 struct omapfb_info *ofbi2 = FB2OFB(fbdev->fbs[i]);
237 if (ofbi2->region != rg)
240 for (j = 0; j < ofbi2->num_overlays; j++) {
241 struct omap_overlay *ovl;
242 ovl = ofbi2->overlays[j];
243 if (ovl->is_enabled(ovl)) {
250 if (rg->size != size || rg->type != mi->type) {
251 r = omapfb_realloc_fbmem(fbi, size, mi->type);
253 dev_err(fbdev->dev, "realloc fbmem failed\n");
259 atomic_dec(&rg->lock_count);
265 static int omapfb_query_mem(struct fb_info *fbi, struct omapfb_mem_info *mi)
267 struct omapfb_info *ofbi = FB2OFB(fbi);
268 struct omapfb2_mem_region *rg;
270 rg = omapfb_get_mem_region(ofbi->region);
271 memset(mi, 0, sizeof(*mi));
276 omapfb_put_mem_region(rg);
281 static int omapfb_update_window_nolock(struct fb_info *fbi,
282 u32 x, u32 y, u32 w, u32 h)
284 struct omap_dss_device *display = fb2display(fbi);
290 if (w == 0 || h == 0)
293 display->driver->get_resolution(display, &dw, &dh);
295 if (x + w > dw || y + h > dh)
298 return display->driver->update(display, x, y, w, h);
301 /* This function is exported for SGX driver use */
302 int omapfb_update_window(struct fb_info *fbi,
303 u32 x, u32 y, u32 w, u32 h)
305 struct omapfb_info *ofbi = FB2OFB(fbi);
306 struct omapfb2_device *fbdev = ofbi->fbdev;
309 if (!lock_fb_info(fbi))
313 r = omapfb_update_window_nolock(fbi, x, y, w, h);
315 omapfb_unlock(fbdev);
320 EXPORT_SYMBOL(omapfb_update_window);
322 int omapfb_set_update_mode(struct fb_info *fbi,
323 enum omapfb_update_mode mode)
325 struct omap_dss_device *display = fb2display(fbi);
326 struct omapfb_info *ofbi = FB2OFB(fbi);
327 struct omapfb2_device *fbdev = ofbi->fbdev;
328 struct omapfb_display_data *d;
334 if (mode != OMAPFB_AUTO_UPDATE && mode != OMAPFB_MANUAL_UPDATE)
339 d = get_display_data(fbdev, display);
341 if (d->update_mode == mode) {
342 omapfb_unlock(fbdev);
348 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
349 if (mode == OMAPFB_AUTO_UPDATE)
350 omapfb_start_auto_update(fbdev, display);
351 else /* MANUAL_UPDATE */
352 omapfb_stop_auto_update(fbdev, display);
354 d->update_mode = mode;
355 } else { /* AUTO_UPDATE */
356 if (mode == OMAPFB_MANUAL_UPDATE)
360 omapfb_unlock(fbdev);
365 int omapfb_get_update_mode(struct fb_info *fbi,
366 enum omapfb_update_mode *mode)
368 struct omap_dss_device *display = fb2display(fbi);
369 struct omapfb_info *ofbi = FB2OFB(fbi);
370 struct omapfb2_device *fbdev = ofbi->fbdev;
371 struct omapfb_display_data *d;
378 d = get_display_data(fbdev, display);
380 *mode = d->update_mode;
382 omapfb_unlock(fbdev);
387 /* XXX this color key handling is a hack... */
388 static struct omapfb_color_key omapfb_color_keys[2];
390 static int _omapfb_set_color_key(struct omap_overlay_manager *mgr,
391 struct omapfb_color_key *ck)
393 struct omap_overlay_manager_info info;
394 enum omap_dss_trans_key_type kt;
397 mgr->get_manager_info(mgr, &info);
399 if (ck->key_type == OMAPFB_COLOR_KEY_DISABLED) {
400 info.trans_enabled = false;
401 omapfb_color_keys[mgr->id] = *ck;
403 r = mgr->set_manager_info(mgr, &info);
412 switch (ck->key_type) {
413 case OMAPFB_COLOR_KEY_GFX_DST:
414 kt = OMAP_DSS_COLOR_KEY_GFX_DST;
416 case OMAPFB_COLOR_KEY_VID_SRC:
417 kt = OMAP_DSS_COLOR_KEY_VID_SRC;
423 info.default_color = ck->background;
424 info.trans_key = ck->trans_key;
425 info.trans_key_type = kt;
426 info.trans_enabled = true;
428 omapfb_color_keys[mgr->id] = *ck;
430 r = mgr->set_manager_info(mgr, &info);
439 static int omapfb_set_color_key(struct fb_info *fbi,
440 struct omapfb_color_key *ck)
442 struct omapfb_info *ofbi = FB2OFB(fbi);
443 struct omapfb2_device *fbdev = ofbi->fbdev;
446 struct omap_overlay_manager *mgr = NULL;
450 for (i = 0; i < ofbi->num_overlays; i++) {
451 if (ofbi->overlays[i]->manager) {
452 mgr = ofbi->overlays[i]->manager;
462 r = _omapfb_set_color_key(mgr, ck);
464 omapfb_unlock(fbdev);
469 static int omapfb_get_color_key(struct fb_info *fbi,
470 struct omapfb_color_key *ck)
472 struct omapfb_info *ofbi = FB2OFB(fbi);
473 struct omapfb2_device *fbdev = ofbi->fbdev;
474 struct omap_overlay_manager *mgr = NULL;
480 for (i = 0; i < ofbi->num_overlays; i++) {
481 if (ofbi->overlays[i]->manager) {
482 mgr = ofbi->overlays[i]->manager;
492 *ck = omapfb_color_keys[mgr->id];
494 omapfb_unlock(fbdev);
499 static int omapfb_memory_read(struct fb_info *fbi,
500 struct omapfb_memory_read *mr)
502 struct omap_dss_device *display = fb2display(fbi);
506 if (!display || !display->driver->memory_read)
509 if (!access_ok(VERIFY_WRITE, mr->buffer, mr->buffer_size))
512 if (mr->w * mr->h * 3 > mr->buffer_size)
515 buf = vmalloc(mr->buffer_size);
517 DBG("vmalloc failed\n");
521 r = display->driver->memory_read(display, buf, mr->buffer_size,
522 mr->x, mr->y, mr->w, mr->h);
525 if (copy_to_user(mr->buffer, buf, mr->buffer_size))
534 static int omapfb_get_ovl_colormode(struct omapfb2_device *fbdev,
535 struct omapfb_ovl_colormode *mode)
537 int ovl_idx = mode->overlay_idx;
538 int mode_idx = mode->mode_idx;
539 struct omap_overlay *ovl;
540 enum omap_color_mode supported_modes;
541 struct fb_var_screeninfo var;
544 if (ovl_idx >= fbdev->num_overlays)
546 ovl = fbdev->overlays[ovl_idx];
547 supported_modes = ovl->supported_modes;
549 mode_idx = mode->mode_idx;
551 for (i = 0; i < sizeof(supported_modes) * 8; i++) {
552 if (!(supported_modes & (1 << i)))
555 * It's possible that the FB doesn't support a mode
556 * that is supported by the overlay, so call the
559 if (dss_mode_to_fb_mode(1 << i, &var) < 0)
567 if (i == sizeof(supported_modes) * 8)
570 mode->bits_per_pixel = var.bits_per_pixel;
571 mode->nonstd = var.nonstd;
573 mode->green = var.green;
574 mode->blue = var.blue;
575 mode->transp = var.transp;
580 static int omapfb_wait_for_go(struct fb_info *fbi)
582 struct omapfb_info *ofbi = FB2OFB(fbi);
586 for (i = 0; i < ofbi->num_overlays; ++i) {
587 struct omap_overlay *ovl = ofbi->overlays[i];
588 r = ovl->wait_for_go(ovl);
596 int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
598 struct omapfb_info *ofbi = FB2OFB(fbi);
599 struct omapfb2_device *fbdev = ofbi->fbdev;
600 struct omap_dss_device *display = fb2display(fbi);
603 struct omapfb_update_window_old uwnd_o;
604 struct omapfb_update_window uwnd;
605 struct omapfb_plane_info plane_info;
606 struct omapfb_caps caps;
607 struct omapfb_mem_info mem_info;
608 struct omapfb_color_key color_key;
609 struct omapfb_ovl_colormode ovl_colormode;
610 enum omapfb_update_mode update_mode;
612 struct omapfb_memory_read memory_read;
613 struct omapfb_vram_info vram_info;
614 struct omapfb_tearsync_info tearsync_info;
615 struct omapfb_display_info display_info;
622 case OMAPFB_SYNC_GFX:
623 DBG("ioctl SYNC_GFX\n");
624 if (!display || !display->driver->sync) {
625 /* DSS1 never returns an error here, so we neither */
630 r = display->driver->sync(display);
633 case OMAPFB_UPDATE_WINDOW_OLD:
634 DBG("ioctl UPDATE_WINDOW_OLD\n");
635 if (!display || !display->driver->update) {
640 if (copy_from_user(&p.uwnd_o,
647 r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y,
648 p.uwnd_o.width, p.uwnd_o.height);
651 case OMAPFB_UPDATE_WINDOW:
652 DBG("ioctl UPDATE_WINDOW\n");
653 if (!display || !display->driver->update) {
658 if (copy_from_user(&p.uwnd, (void __user *)arg,
664 r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y,
665 p.uwnd.width, p.uwnd.height);
668 case OMAPFB_SETUP_PLANE:
669 DBG("ioctl SETUP_PLANE\n");
670 if (copy_from_user(&p.plane_info, (void __user *)arg,
671 sizeof(p.plane_info)))
674 r = omapfb_setup_plane(fbi, &p.plane_info);
677 case OMAPFB_QUERY_PLANE:
678 DBG("ioctl QUERY_PLANE\n");
679 r = omapfb_query_plane(fbi, &p.plane_info);
682 if (copy_to_user((void __user *)arg, &p.plane_info,
683 sizeof(p.plane_info)))
687 case OMAPFB_SETUP_MEM:
688 DBG("ioctl SETUP_MEM\n");
689 if (copy_from_user(&p.mem_info, (void __user *)arg,
693 r = omapfb_setup_mem(fbi, &p.mem_info);
696 case OMAPFB_QUERY_MEM:
697 DBG("ioctl QUERY_MEM\n");
698 r = omapfb_query_mem(fbi, &p.mem_info);
701 if (copy_to_user((void __user *)arg, &p.mem_info,
706 case OMAPFB_GET_CAPS:
707 DBG("ioctl GET_CAPS\n");
713 memset(&p.caps, 0, sizeof(p.caps));
714 if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
715 p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
716 if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
717 p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;
719 if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
723 case OMAPFB_GET_OVERLAY_COLORMODE:
724 DBG("ioctl GET_OVERLAY_COLORMODE\n");
725 if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
726 sizeof(p.ovl_colormode))) {
730 r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
733 if (copy_to_user((void __user *)arg, &p.ovl_colormode,
734 sizeof(p.ovl_colormode)))
738 case OMAPFB_SET_UPDATE_MODE:
739 DBG("ioctl SET_UPDATE_MODE\n");
740 if (get_user(p.update_mode, (int __user *)arg))
743 r = omapfb_set_update_mode(fbi, p.update_mode);
746 case OMAPFB_GET_UPDATE_MODE:
747 DBG("ioctl GET_UPDATE_MODE\n");
748 r = omapfb_get_update_mode(fbi, &p.update_mode);
751 if (put_user(p.update_mode,
752 (enum omapfb_update_mode __user *)arg))
756 case OMAPFB_SET_COLOR_KEY:
757 DBG("ioctl SET_COLOR_KEY\n");
758 if (copy_from_user(&p.color_key, (void __user *)arg,
759 sizeof(p.color_key)))
762 r = omapfb_set_color_key(fbi, &p.color_key);
765 case OMAPFB_GET_COLOR_KEY:
766 DBG("ioctl GET_COLOR_KEY\n");
767 r = omapfb_get_color_key(fbi, &p.color_key);
770 if (copy_to_user((void __user *)arg, &p.color_key,
771 sizeof(p.color_key)))
775 case FBIO_WAITFORVSYNC:
776 if (get_user(p.crt, (__u32 __user *)arg)) {
786 case OMAPFB_WAITFORVSYNC:
787 DBG("ioctl WAITFORVSYNC\n");
793 r = display->manager->wait_for_vsync(display->manager);
796 case OMAPFB_WAITFORGO:
797 DBG("ioctl WAITFORGO\n");
803 r = omapfb_wait_for_go(fbi);
806 /* LCD and CTRL tests do the same thing for backward
808 case OMAPFB_LCD_TEST:
809 DBG("ioctl LCD_TEST\n");
810 if (get_user(p.test_num, (int __user *)arg)) {
814 if (!display || !display->driver->run_test) {
819 r = display->driver->run_test(display, p.test_num);
823 case OMAPFB_CTRL_TEST:
824 DBG("ioctl CTRL_TEST\n");
825 if (get_user(p.test_num, (int __user *)arg)) {
829 if (!display || !display->driver->run_test) {
834 r = display->driver->run_test(display, p.test_num);
838 case OMAPFB_MEMORY_READ:
839 DBG("ioctl MEMORY_READ\n");
841 if (copy_from_user(&p.memory_read, (void __user *)arg,
842 sizeof(p.memory_read))) {
847 r = omapfb_memory_read(fbi, &p.memory_read);
851 case OMAPFB_GET_VRAM_INFO: {
852 unsigned long vram, free, largest;
854 DBG("ioctl GET_VRAM_INFO\n");
856 omap_vram_get_info(&vram, &free, &largest);
857 p.vram_info.total = vram;
858 p.vram_info.free = free;
859 p.vram_info.largest_free_block = largest;
861 if (copy_to_user((void __user *)arg, &p.vram_info,
862 sizeof(p.vram_info)))
867 case OMAPFB_SET_TEARSYNC: {
868 DBG("ioctl SET_TEARSYNC\n");
870 if (copy_from_user(&p.tearsync_info, (void __user *)arg,
871 sizeof(p.tearsync_info))) {
876 if (!display || !display->driver->enable_te) {
881 r = display->driver->enable_te(display,
882 !!p.tearsync_info.enabled);
887 case OMAPFB_GET_DISPLAY_INFO: {
890 DBG("ioctl GET_DISPLAY_INFO\n");
892 if (display == NULL) {
897 display->driver->get_resolution(display, &xres, &yres);
899 p.display_info.xres = xres;
900 p.display_info.yres = yres;
902 if (display->driver->get_dimensions) {
904 display->driver->get_dimensions(display, &w, &h);
905 p.display_info.width = w;
906 p.display_info.height = h;
908 p.display_info.width = 0;
909 p.display_info.height = 0;
912 if (copy_to_user((void __user *)arg, &p.display_info,
913 sizeof(p.display_info)))
919 dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
924 DBG("ioctl failed: %d\n", r);