2 * Copyright (C) 2011 Texas Instruments
3 * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
18 #define DSS_SUBSYS_NAME "APPLY"
20 #include <linux/kernel.h>
21 #include <linux/module.h>
22 #include <linux/slab.h>
23 #include <linux/spinlock.h>
24 #include <linux/jiffies.h>
26 #include <video/omapdss.h>
29 #include "dss_features.h"
30 #include "dispc-compat.h"
33 * We have 4 levels of cache for the dispc settings. First two are in SW and
34 * the latter two in HW.
38 * +--------------------+
40 * +--------------------+
44 * +--------------------+
46 * +--------------------+
50 * +--------------------+
51 * | shadow registers |
52 * +--------------------+
54 * VFP or lcd/digit_enable
56 * +--------------------+
58 * +--------------------+
61 struct ovl_priv_data {
64 struct omap_overlay_info user_info;
67 struct omap_overlay_info info;
69 bool shadow_info_dirty;
71 bool extra_info_dirty;
72 bool shadow_extra_info_dirty;
75 u32 fifo_low, fifo_high;
78 * True if overlay is to be enabled. Used to check and calculate configs
79 * for the overlay before it is enabled in the HW.
84 struct mgr_priv_data {
87 struct omap_overlay_manager_info user_info;
90 struct omap_overlay_manager_info info;
92 bool shadow_info_dirty;
94 /* If true, GO bit is up and shadow registers cannot be written.
95 * Never true for manual update displays */
98 /* If true, dispc output is enabled */
101 /* If true, a display is enabled using this manager */
104 bool extra_info_dirty;
105 bool shadow_extra_info_dirty;
107 struct omap_video_timings timings;
108 struct dss_lcd_mgr_config lcd_config;
110 void (*framedone_handler)(void *);
111 void *framedone_handler_data;
115 struct ovl_priv_data ovl_priv_data_array[MAX_DSS_OVERLAYS];
116 struct mgr_priv_data mgr_priv_data_array[MAX_DSS_MANAGERS];
121 /* protects dss_data */
122 static spinlock_t data_lock;
123 /* lock for blocking functions */
124 static DEFINE_MUTEX(apply_lock);
125 static DECLARE_COMPLETION(extra_updated_completion);
127 static void dss_register_vsync_isr(void);
129 static struct ovl_priv_data *get_ovl_priv(struct omap_overlay *ovl)
131 return &dss_data.ovl_priv_data_array[ovl->id];
134 static struct mgr_priv_data *get_mgr_priv(struct omap_overlay_manager *mgr)
136 return &dss_data.mgr_priv_data_array[mgr->id];
139 static void apply_init_priv(void)
141 const int num_ovls = dss_feat_get_num_ovls();
142 struct mgr_priv_data *mp;
145 spin_lock_init(&data_lock);
147 for (i = 0; i < num_ovls; ++i) {
148 struct ovl_priv_data *op;
150 op = &dss_data.ovl_priv_data_array[i];
152 op->info.global_alpha = 255;
160 dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 3 : 0;
164 dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 2 : 0;
168 dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 1 : 0;
172 op->user_info = op->info;
176 * Initialize some of the lcd_config fields for TV manager, this lets
177 * us prevent checking if the manager is LCD or TV at some places
179 mp = &dss_data.mgr_priv_data_array[OMAP_DSS_CHANNEL_DIGIT];
181 mp->lcd_config.video_port_width = 24;
182 mp->lcd_config.clock_info.lck_div = 1;
183 mp->lcd_config.clock_info.pck_div = 1;
187 * A LCD manager's stallmode decides whether it is in manual or auto update. TV
188 * manager is always auto update, stallmode field for TV manager is false by
191 static bool ovl_manual_update(struct omap_overlay *ovl)
193 struct mgr_priv_data *mp = get_mgr_priv(ovl->manager);
195 return mp->lcd_config.stallmode;
198 static bool mgr_manual_update(struct omap_overlay_manager *mgr)
200 struct mgr_priv_data *mp = get_mgr_priv(mgr);
202 return mp->lcd_config.stallmode;
205 static int dss_check_settings_low(struct omap_overlay_manager *mgr,
208 struct omap_overlay_info *oi;
209 struct omap_overlay_manager_info *mi;
210 struct omap_overlay *ovl;
211 struct omap_overlay_info *ois[MAX_DSS_OVERLAYS];
212 struct ovl_priv_data *op;
213 struct mgr_priv_data *mp;
215 mp = get_mgr_priv(mgr);
220 if (applying && mp->user_info_dirty)
225 /* collect the infos to be tested into the array */
226 list_for_each_entry(ovl, &mgr->overlays, list) {
227 op = get_ovl_priv(ovl);
229 if (!op->enabled && !op->enabling)
231 else if (applying && op->user_info_dirty)
239 return dss_mgr_check(mgr, mi, &mp->timings, &mp->lcd_config, ois);
243 * check manager and overlay settings using overlay_info from data->info
245 static int dss_check_settings(struct omap_overlay_manager *mgr)
247 return dss_check_settings_low(mgr, false);
251 * check manager and overlay settings using overlay_info from ovl->info if
252 * dirty and from data->info otherwise
254 static int dss_check_settings_apply(struct omap_overlay_manager *mgr)
256 return dss_check_settings_low(mgr, true);
259 static bool need_isr(void)
261 const int num_mgrs = dss_feat_get_num_mgrs();
264 for (i = 0; i < num_mgrs; ++i) {
265 struct omap_overlay_manager *mgr;
266 struct mgr_priv_data *mp;
267 struct omap_overlay *ovl;
269 mgr = omap_dss_get_overlay_manager(i);
270 mp = get_mgr_priv(mgr);
275 if (mgr_manual_update(mgr)) {
276 /* to catch FRAMEDONE */
280 /* to catch GO bit going down */
284 /* to write new values to registers */
289 if (mp->shadow_info_dirty)
293 * NOTE: we don't check extra_info flags for disabled
294 * managers, once the manager is enabled, the extra_info
295 * related manager changes will be taken in by HW.
298 /* to write new values to registers */
299 if (mp->extra_info_dirty)
303 if (mp->shadow_extra_info_dirty)
306 list_for_each_entry(ovl, &mgr->overlays, list) {
307 struct ovl_priv_data *op;
309 op = get_ovl_priv(ovl);
312 * NOTE: we check extra_info flags even for
313 * disabled overlays, as extra_infos need to be
317 /* to write new values to registers */
318 if (op->extra_info_dirty)
322 if (op->shadow_extra_info_dirty)
328 /* to write new values to registers */
333 if (op->shadow_info_dirty)
342 static bool need_go(struct omap_overlay_manager *mgr)
344 struct omap_overlay *ovl;
345 struct mgr_priv_data *mp;
346 struct ovl_priv_data *op;
348 mp = get_mgr_priv(mgr);
350 if (mp->shadow_info_dirty || mp->shadow_extra_info_dirty)
353 list_for_each_entry(ovl, &mgr->overlays, list) {
354 op = get_ovl_priv(ovl);
355 if (op->shadow_info_dirty || op->shadow_extra_info_dirty)
362 /* returns true if an extra_info field is currently being updated */
363 static bool extra_info_update_ongoing(void)
365 const int num_mgrs = dss_feat_get_num_mgrs();
368 for (i = 0; i < num_mgrs; ++i) {
369 struct omap_overlay_manager *mgr;
370 struct omap_overlay *ovl;
371 struct mgr_priv_data *mp;
373 mgr = omap_dss_get_overlay_manager(i);
374 mp = get_mgr_priv(mgr);
382 if (mp->extra_info_dirty || mp->shadow_extra_info_dirty)
385 list_for_each_entry(ovl, &mgr->overlays, list) {
386 struct ovl_priv_data *op = get_ovl_priv(ovl);
388 if (op->extra_info_dirty || op->shadow_extra_info_dirty)
396 /* wait until no extra_info updates are pending */
397 static void wait_pending_extra_info_updates(void)
404 spin_lock_irqsave(&data_lock, flags);
406 updating = extra_info_update_ongoing();
409 spin_unlock_irqrestore(&data_lock, flags);
413 init_completion(&extra_updated_completion);
415 spin_unlock_irqrestore(&data_lock, flags);
417 t = msecs_to_jiffies(500);
418 r = wait_for_completion_timeout(&extra_updated_completion, t);
420 DSSWARN("timeout in wait_pending_extra_info_updates\n");
423 static inline struct omap_dss_device *dss_ovl_get_device(struct omap_overlay *ovl)
425 return ovl->manager ?
426 (ovl->manager->output ? ovl->manager->output->device : NULL) :
430 static inline struct omap_dss_device *dss_mgr_get_device(struct omap_overlay_manager *mgr)
432 return mgr->output ? mgr->output->device : NULL;
435 static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
437 unsigned long timeout = msecs_to_jiffies(500);
438 struct omap_dss_device *dssdev = mgr->get_device(mgr);
442 r = dispc_runtime_get();
446 if (dssdev->type == OMAP_DISPLAY_TYPE_VENC)
447 irq = DISPC_IRQ_EVSYNC_ODD;
448 else if (dssdev->type == OMAP_DISPLAY_TYPE_HDMI)
449 irq = DISPC_IRQ_EVSYNC_EVEN;
451 irq = dispc_mgr_get_vsync_irq(mgr->id);
453 r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
460 static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
462 unsigned long timeout = msecs_to_jiffies(500);
463 struct mgr_priv_data *mp = get_mgr_priv(mgr);
469 spin_lock_irqsave(&data_lock, flags);
471 if (mgr_manual_update(mgr)) {
472 spin_unlock_irqrestore(&data_lock, flags);
477 spin_unlock_irqrestore(&data_lock, flags);
481 spin_unlock_irqrestore(&data_lock, flags);
483 r = dispc_runtime_get();
487 irq = dispc_mgr_get_vsync_irq(mgr->id);
491 bool shadow_dirty, dirty;
493 spin_lock_irqsave(&data_lock, flags);
494 dirty = mp->info_dirty;
495 shadow_dirty = mp->shadow_info_dirty;
496 spin_unlock_irqrestore(&data_lock, flags);
498 if (!dirty && !shadow_dirty) {
503 /* 4 iterations is the worst case:
504 * 1 - initial iteration, dirty = true (between VFP and VSYNC)
505 * 2 - first VSYNC, dirty = true
506 * 3 - dirty = false, shadow_dirty = true
507 * 4 - shadow_dirty = false */
509 DSSERR("mgr(%d)->wait_for_go() not finishing\n",
515 r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
516 if (r == -ERESTARTSYS)
520 DSSERR("mgr(%d)->wait_for_go() timeout\n", mgr->id);
530 static int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
532 unsigned long timeout = msecs_to_jiffies(500);
533 struct ovl_priv_data *op;
534 struct mgr_priv_data *mp;
543 mp = get_mgr_priv(ovl->manager);
545 spin_lock_irqsave(&data_lock, flags);
547 if (ovl_manual_update(ovl)) {
548 spin_unlock_irqrestore(&data_lock, flags);
553 spin_unlock_irqrestore(&data_lock, flags);
557 spin_unlock_irqrestore(&data_lock, flags);
559 r = dispc_runtime_get();
563 irq = dispc_mgr_get_vsync_irq(ovl->manager->id);
565 op = get_ovl_priv(ovl);
568 bool shadow_dirty, dirty;
570 spin_lock_irqsave(&data_lock, flags);
571 dirty = op->info_dirty;
572 shadow_dirty = op->shadow_info_dirty;
573 spin_unlock_irqrestore(&data_lock, flags);
575 if (!dirty && !shadow_dirty) {
580 /* 4 iterations is the worst case:
581 * 1 - initial iteration, dirty = true (between VFP and VSYNC)
582 * 2 - first VSYNC, dirty = true
583 * 3 - dirty = false, shadow_dirty = true
584 * 4 - shadow_dirty = false */
586 DSSERR("ovl(%d)->wait_for_go() not finishing\n",
592 r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
593 if (r == -ERESTARTSYS)
597 DSSERR("ovl(%d)->wait_for_go() timeout\n", ovl->id);
607 static void dss_ovl_write_regs(struct omap_overlay *ovl)
609 struct ovl_priv_data *op = get_ovl_priv(ovl);
610 struct omap_overlay_info *oi;
612 struct mgr_priv_data *mp;
615 DSSDBG("writing ovl %d regs", ovl->id);
617 if (!op->enabled || !op->info_dirty)
622 mp = get_mgr_priv(ovl->manager);
624 replication = dss_ovl_use_replication(mp->lcd_config, oi->color_mode);
626 r = dispc_ovl_setup(ovl->id, oi, replication, &mp->timings, false);
629 * We can't do much here, as this function can be called from
632 DSSERR("dispc_ovl_setup failed for ovl %d\n", ovl->id);
634 /* This will leave fifo configurations in a nonoptimal state */
636 dispc_ovl_enable(ovl->id, false);
640 op->info_dirty = false;
642 op->shadow_info_dirty = true;
645 static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
647 struct ovl_priv_data *op = get_ovl_priv(ovl);
648 struct mgr_priv_data *mp;
650 DSSDBG("writing ovl %d regs extra", ovl->id);
652 if (!op->extra_info_dirty)
655 /* note: write also when op->enabled == false, so that the ovl gets
658 dispc_ovl_enable(ovl->id, op->enabled);
659 dispc_ovl_set_fifo_threshold(ovl->id, op->fifo_low, op->fifo_high);
661 mp = get_mgr_priv(ovl->manager);
663 op->extra_info_dirty = false;
665 op->shadow_extra_info_dirty = true;
668 static void dss_mgr_write_regs(struct omap_overlay_manager *mgr)
670 struct mgr_priv_data *mp = get_mgr_priv(mgr);
671 struct omap_overlay *ovl;
673 DSSDBG("writing mgr %d regs", mgr->id);
680 /* Commit overlay settings */
681 list_for_each_entry(ovl, &mgr->overlays, list) {
682 dss_ovl_write_regs(ovl);
683 dss_ovl_write_regs_extra(ovl);
686 if (mp->info_dirty) {
687 dispc_mgr_setup(mgr->id, &mp->info);
689 mp->info_dirty = false;
691 mp->shadow_info_dirty = true;
695 static void dss_mgr_write_regs_extra(struct omap_overlay_manager *mgr)
697 struct mgr_priv_data *mp = get_mgr_priv(mgr);
699 DSSDBG("writing mgr %d regs extra", mgr->id);
701 if (!mp->extra_info_dirty)
704 dispc_mgr_set_timings(mgr->id, &mp->timings);
706 /* lcd_config parameters */
707 if (dss_mgr_is_lcd(mgr->id))
708 dispc_mgr_set_lcd_config(mgr->id, &mp->lcd_config);
710 mp->extra_info_dirty = false;
712 mp->shadow_extra_info_dirty = true;
715 static void dss_write_regs(void)
717 const int num_mgrs = omap_dss_get_num_overlay_managers();
720 for (i = 0; i < num_mgrs; ++i) {
721 struct omap_overlay_manager *mgr;
722 struct mgr_priv_data *mp;
725 mgr = omap_dss_get_overlay_manager(i);
726 mp = get_mgr_priv(mgr);
728 if (!mp->enabled || mgr_manual_update(mgr) || mp->busy)
731 r = dss_check_settings(mgr);
733 DSSERR("cannot write registers for manager %s: "
734 "illegal configuration\n", mgr->name);
738 dss_mgr_write_regs(mgr);
739 dss_mgr_write_regs_extra(mgr);
743 static void dss_set_go_bits(void)
745 const int num_mgrs = omap_dss_get_num_overlay_managers();
748 for (i = 0; i < num_mgrs; ++i) {
749 struct omap_overlay_manager *mgr;
750 struct mgr_priv_data *mp;
752 mgr = omap_dss_get_overlay_manager(i);
753 mp = get_mgr_priv(mgr);
755 if (!mp->enabled || mgr_manual_update(mgr) || mp->busy)
763 if (!dss_data.irq_enabled && need_isr())
764 dss_register_vsync_isr();
766 dispc_mgr_go(mgr->id);
771 static void mgr_clear_shadow_dirty(struct omap_overlay_manager *mgr)
773 struct omap_overlay *ovl;
774 struct mgr_priv_data *mp;
775 struct ovl_priv_data *op;
777 mp = get_mgr_priv(mgr);
778 mp->shadow_info_dirty = false;
779 mp->shadow_extra_info_dirty = false;
781 list_for_each_entry(ovl, &mgr->overlays, list) {
782 op = get_ovl_priv(ovl);
783 op->shadow_info_dirty = false;
784 op->shadow_extra_info_dirty = false;
788 static void dss_mgr_start_update_compat(struct omap_overlay_manager *mgr)
790 struct mgr_priv_data *mp = get_mgr_priv(mgr);
794 spin_lock_irqsave(&data_lock, flags);
796 WARN_ON(mp->updating);
798 r = dss_check_settings(mgr);
800 DSSERR("cannot start manual update: illegal configuration\n");
801 spin_unlock_irqrestore(&data_lock, flags);
805 dss_mgr_write_regs(mgr);
806 dss_mgr_write_regs_extra(mgr);
810 if (!dss_data.irq_enabled && need_isr())
811 dss_register_vsync_isr();
813 dispc_mgr_enable_sync(mgr->id);
815 spin_unlock_irqrestore(&data_lock, flags);
818 static void dss_apply_irq_handler(void *data, u32 mask);
820 static void dss_register_vsync_isr(void)
822 const int num_mgrs = dss_feat_get_num_mgrs();
827 for (i = 0; i < num_mgrs; ++i)
828 mask |= dispc_mgr_get_vsync_irq(i);
830 for (i = 0; i < num_mgrs; ++i)
831 mask |= dispc_mgr_get_framedone_irq(i);
833 r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, mask);
836 dss_data.irq_enabled = true;
839 static void dss_unregister_vsync_isr(void)
841 const int num_mgrs = dss_feat_get_num_mgrs();
846 for (i = 0; i < num_mgrs; ++i)
847 mask |= dispc_mgr_get_vsync_irq(i);
849 for (i = 0; i < num_mgrs; ++i)
850 mask |= dispc_mgr_get_framedone_irq(i);
852 r = omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, mask);
855 dss_data.irq_enabled = false;
858 static void dss_apply_irq_handler(void *data, u32 mask)
860 const int num_mgrs = dss_feat_get_num_mgrs();
864 spin_lock(&data_lock);
866 /* clear busy, updating flags, shadow_dirty flags */
867 for (i = 0; i < num_mgrs; i++) {
868 struct omap_overlay_manager *mgr;
869 struct mgr_priv_data *mp;
871 mgr = omap_dss_get_overlay_manager(i);
872 mp = get_mgr_priv(mgr);
877 mp->updating = dispc_mgr_is_enabled(i);
879 if (!mgr_manual_update(mgr)) {
880 bool was_busy = mp->busy;
881 mp->busy = dispc_mgr_go_busy(i);
883 if (was_busy && !mp->busy)
884 mgr_clear_shadow_dirty(mgr);
891 extra_updating = extra_info_update_ongoing();
893 complete_all(&extra_updated_completion);
895 /* call framedone handlers for manual update displays */
896 for (i = 0; i < num_mgrs; i++) {
897 struct omap_overlay_manager *mgr;
898 struct mgr_priv_data *mp;
900 mgr = omap_dss_get_overlay_manager(i);
901 mp = get_mgr_priv(mgr);
903 if (!mgr_manual_update(mgr) || !mp->framedone_handler)
906 if (mask & dispc_mgr_get_framedone_irq(i))
907 mp->framedone_handler(mp->framedone_handler_data);
911 dss_unregister_vsync_isr();
913 spin_unlock(&data_lock);
916 static void omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
918 struct ovl_priv_data *op;
920 op = get_ovl_priv(ovl);
922 if (!op->user_info_dirty)
925 op->user_info_dirty = false;
926 op->info_dirty = true;
927 op->info = op->user_info;
930 static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
932 struct mgr_priv_data *mp;
934 mp = get_mgr_priv(mgr);
936 if (!mp->user_info_dirty)
939 mp->user_info_dirty = false;
940 mp->info_dirty = true;
941 mp->info = mp->user_info;
944 static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
947 struct omap_overlay *ovl;
950 DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
952 spin_lock_irqsave(&data_lock, flags);
954 r = dss_check_settings_apply(mgr);
956 spin_unlock_irqrestore(&data_lock, flags);
957 DSSERR("failed to apply settings: illegal configuration.\n");
961 /* Configure overlays */
962 list_for_each_entry(ovl, &mgr->overlays, list)
963 omap_dss_mgr_apply_ovl(ovl);
965 /* Configure manager */
966 omap_dss_mgr_apply_mgr(mgr);
971 spin_unlock_irqrestore(&data_lock, flags);
976 static void dss_apply_ovl_enable(struct omap_overlay *ovl, bool enable)
978 struct ovl_priv_data *op;
980 op = get_ovl_priv(ovl);
982 if (op->enabled == enable)
985 op->enabled = enable;
986 op->extra_info_dirty = true;
989 static void dss_apply_ovl_fifo_thresholds(struct omap_overlay *ovl,
990 u32 fifo_low, u32 fifo_high)
992 struct ovl_priv_data *op = get_ovl_priv(ovl);
994 if (op->fifo_low == fifo_low && op->fifo_high == fifo_high)
997 op->fifo_low = fifo_low;
998 op->fifo_high = fifo_high;
999 op->extra_info_dirty = true;
1002 static void dss_ovl_setup_fifo(struct omap_overlay *ovl)
1004 struct ovl_priv_data *op = get_ovl_priv(ovl);
1005 u32 fifo_low, fifo_high;
1006 bool use_fifo_merge = false;
1008 if (!op->enabled && !op->enabling)
1011 dispc_ovl_compute_fifo_thresholds(ovl->id, &fifo_low, &fifo_high,
1012 use_fifo_merge, ovl_manual_update(ovl));
1014 dss_apply_ovl_fifo_thresholds(ovl, fifo_low, fifo_high);
1017 static void dss_mgr_setup_fifos(struct omap_overlay_manager *mgr)
1019 struct omap_overlay *ovl;
1020 struct mgr_priv_data *mp;
1022 mp = get_mgr_priv(mgr);
1027 list_for_each_entry(ovl, &mgr->overlays, list)
1028 dss_ovl_setup_fifo(ovl);
1031 static void dss_setup_fifos(void)
1033 const int num_mgrs = omap_dss_get_num_overlay_managers();
1034 struct omap_overlay_manager *mgr;
1037 for (i = 0; i < num_mgrs; ++i) {
1038 mgr = omap_dss_get_overlay_manager(i);
1039 dss_mgr_setup_fifos(mgr);
1043 static int dss_mgr_enable_compat(struct omap_overlay_manager *mgr)
1045 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1046 unsigned long flags;
1049 mutex_lock(&apply_lock);
1054 spin_lock_irqsave(&data_lock, flags);
1058 r = dss_check_settings(mgr);
1060 DSSERR("failed to enable manager %d: check_settings failed\n",
1070 if (!mgr_manual_update(mgr))
1071 mp->updating = true;
1073 if (!dss_data.irq_enabled && need_isr())
1074 dss_register_vsync_isr();
1076 spin_unlock_irqrestore(&data_lock, flags);
1078 if (!mgr_manual_update(mgr))
1079 dispc_mgr_enable_sync(mgr->id);
1082 mutex_unlock(&apply_lock);
1087 mp->enabled = false;
1088 spin_unlock_irqrestore(&data_lock, flags);
1089 mutex_unlock(&apply_lock);
1093 static void dss_mgr_disable_compat(struct omap_overlay_manager *mgr)
1095 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1096 unsigned long flags;
1098 mutex_lock(&apply_lock);
1103 if (!mgr_manual_update(mgr))
1104 dispc_mgr_disable_sync(mgr->id);
1106 spin_lock_irqsave(&data_lock, flags);
1108 mp->updating = false;
1109 mp->enabled = false;
1111 spin_unlock_irqrestore(&data_lock, flags);
1114 mutex_unlock(&apply_lock);
1117 static int dss_mgr_set_info(struct omap_overlay_manager *mgr,
1118 struct omap_overlay_manager_info *info)
1120 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1121 unsigned long flags;
1124 r = dss_mgr_simple_check(mgr, info);
1128 spin_lock_irqsave(&data_lock, flags);
1130 mp->user_info = *info;
1131 mp->user_info_dirty = true;
1133 spin_unlock_irqrestore(&data_lock, flags);
1138 static void dss_mgr_get_info(struct omap_overlay_manager *mgr,
1139 struct omap_overlay_manager_info *info)
1141 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1142 unsigned long flags;
1144 spin_lock_irqsave(&data_lock, flags);
1146 *info = mp->user_info;
1148 spin_unlock_irqrestore(&data_lock, flags);
1151 static int dss_mgr_set_output(struct omap_overlay_manager *mgr,
1152 struct omap_dss_output *output)
1156 mutex_lock(&apply_lock);
1159 DSSERR("manager %s is already connected to an output\n",
1165 if ((mgr->supported_outputs & output->id) == 0) {
1166 DSSERR("output does not support manager %s\n",
1172 output->manager = mgr;
1173 mgr->output = output;
1175 mutex_unlock(&apply_lock);
1179 mutex_unlock(&apply_lock);
1183 static int dss_mgr_unset_output(struct omap_overlay_manager *mgr)
1186 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1187 unsigned long flags;
1189 mutex_lock(&apply_lock);
1192 DSSERR("failed to unset output, output not set\n");
1197 spin_lock_irqsave(&data_lock, flags);
1200 DSSERR("output can't be unset when manager is enabled\n");
1205 spin_unlock_irqrestore(&data_lock, flags);
1207 mgr->output->manager = NULL;
1210 mutex_unlock(&apply_lock);
1214 spin_unlock_irqrestore(&data_lock, flags);
1216 mutex_unlock(&apply_lock);
1221 static void dss_apply_mgr_timings(struct omap_overlay_manager *mgr,
1222 const struct omap_video_timings *timings)
1224 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1226 mp->timings = *timings;
1227 mp->extra_info_dirty = true;
1230 static void dss_mgr_set_timings_compat(struct omap_overlay_manager *mgr,
1231 const struct omap_video_timings *timings)
1233 unsigned long flags;
1234 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1236 spin_lock_irqsave(&data_lock, flags);
1239 DSSERR("cannot set timings for %s: manager needs to be disabled\n",
1244 dss_apply_mgr_timings(mgr, timings);
1246 spin_unlock_irqrestore(&data_lock, flags);
1249 static void dss_apply_mgr_lcd_config(struct omap_overlay_manager *mgr,
1250 const struct dss_lcd_mgr_config *config)
1252 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1254 mp->lcd_config = *config;
1255 mp->extra_info_dirty = true;
1258 static void dss_mgr_set_lcd_config_compat(struct omap_overlay_manager *mgr,
1259 const struct dss_lcd_mgr_config *config)
1261 unsigned long flags;
1262 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1264 spin_lock_irqsave(&data_lock, flags);
1267 DSSERR("cannot apply lcd config for %s: manager needs to be disabled\n",
1272 dss_apply_mgr_lcd_config(mgr, config);
1274 spin_unlock_irqrestore(&data_lock, flags);
1277 static int dss_ovl_set_info(struct omap_overlay *ovl,
1278 struct omap_overlay_info *info)
1280 struct ovl_priv_data *op = get_ovl_priv(ovl);
1281 unsigned long flags;
1284 r = dss_ovl_simple_check(ovl, info);
1288 spin_lock_irqsave(&data_lock, flags);
1290 op->user_info = *info;
1291 op->user_info_dirty = true;
1293 spin_unlock_irqrestore(&data_lock, flags);
1298 static void dss_ovl_get_info(struct omap_overlay *ovl,
1299 struct omap_overlay_info *info)
1301 struct ovl_priv_data *op = get_ovl_priv(ovl);
1302 unsigned long flags;
1304 spin_lock_irqsave(&data_lock, flags);
1306 *info = op->user_info;
1308 spin_unlock_irqrestore(&data_lock, flags);
1311 static int dss_ovl_set_manager(struct omap_overlay *ovl,
1312 struct omap_overlay_manager *mgr)
1314 struct ovl_priv_data *op = get_ovl_priv(ovl);
1315 unsigned long flags;
1321 mutex_lock(&apply_lock);
1324 DSSERR("overlay '%s' already has a manager '%s'\n",
1325 ovl->name, ovl->manager->name);
1330 r = dispc_runtime_get();
1334 spin_lock_irqsave(&data_lock, flags);
1337 spin_unlock_irqrestore(&data_lock, flags);
1338 DSSERR("overlay has to be disabled to change the manager\n");
1343 dispc_ovl_set_channel_out(ovl->id, mgr->id);
1346 list_add_tail(&ovl->list, &mgr->overlays);
1348 spin_unlock_irqrestore(&data_lock, flags);
1350 dispc_runtime_put();
1352 mutex_unlock(&apply_lock);
1357 dispc_runtime_put();
1359 mutex_unlock(&apply_lock);
1363 static int dss_ovl_unset_manager(struct omap_overlay *ovl)
1365 struct ovl_priv_data *op = get_ovl_priv(ovl);
1366 unsigned long flags;
1369 mutex_lock(&apply_lock);
1371 if (!ovl->manager) {
1372 DSSERR("failed to detach overlay: manager not set\n");
1377 spin_lock_irqsave(&data_lock, flags);
1380 spin_unlock_irqrestore(&data_lock, flags);
1381 DSSERR("overlay has to be disabled to unset the manager\n");
1386 spin_unlock_irqrestore(&data_lock, flags);
1388 /* wait for pending extra_info updates to ensure the ovl is disabled */
1389 wait_pending_extra_info_updates();
1392 * For a manual update display, there is no guarantee that the overlay
1393 * is really disabled in HW, we may need an extra update from this
1394 * manager before the configurations can go in. Return an error if the
1395 * overlay needed an update from the manager.
1397 * TODO: Instead of returning an error, try to do a dummy manager update
1398 * here to disable the overlay in hardware. Use the *GATED fields in
1399 * the DISPC_CONFIG registers to do a dummy update.
1401 spin_lock_irqsave(&data_lock, flags);
1403 if (ovl_manual_update(ovl) && op->extra_info_dirty) {
1404 spin_unlock_irqrestore(&data_lock, flags);
1405 DSSERR("need an update to change the manager\n");
1410 ovl->manager = NULL;
1411 list_del(&ovl->list);
1413 spin_unlock_irqrestore(&data_lock, flags);
1415 mutex_unlock(&apply_lock);
1419 mutex_unlock(&apply_lock);
1423 static bool dss_ovl_is_enabled(struct omap_overlay *ovl)
1425 struct ovl_priv_data *op = get_ovl_priv(ovl);
1426 unsigned long flags;
1429 spin_lock_irqsave(&data_lock, flags);
1433 spin_unlock_irqrestore(&data_lock, flags);
1438 static int dss_ovl_enable(struct omap_overlay *ovl)
1440 struct ovl_priv_data *op = get_ovl_priv(ovl);
1441 unsigned long flags;
1444 mutex_lock(&apply_lock);
1451 if (ovl->manager == NULL || ovl->manager->output == NULL) {
1456 spin_lock_irqsave(&data_lock, flags);
1458 op->enabling = true;
1460 r = dss_check_settings(ovl->manager);
1462 DSSERR("failed to enable overlay %d: check_settings failed\n",
1469 op->enabling = false;
1470 dss_apply_ovl_enable(ovl, true);
1475 spin_unlock_irqrestore(&data_lock, flags);
1477 mutex_unlock(&apply_lock);
1481 op->enabling = false;
1482 spin_unlock_irqrestore(&data_lock, flags);
1484 mutex_unlock(&apply_lock);
1488 static int dss_ovl_disable(struct omap_overlay *ovl)
1490 struct ovl_priv_data *op = get_ovl_priv(ovl);
1491 unsigned long flags;
1494 mutex_lock(&apply_lock);
1501 if (ovl->manager == NULL || ovl->manager->output == NULL) {
1506 spin_lock_irqsave(&data_lock, flags);
1508 dss_apply_ovl_enable(ovl, false);
1512 spin_unlock_irqrestore(&data_lock, flags);
1514 mutex_unlock(&apply_lock);
1519 mutex_unlock(&apply_lock);
1523 static int dss_mgr_register_framedone_handler_compat(struct omap_overlay_manager *mgr,
1524 void (*handler)(void *), void *data)
1526 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1528 if (mp->framedone_handler)
1531 mp->framedone_handler = handler;
1532 mp->framedone_handler_data = data;
1537 static void dss_mgr_unregister_framedone_handler_compat(struct omap_overlay_manager *mgr,
1538 void (*handler)(void *), void *data)
1540 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1542 WARN_ON(mp->framedone_handler != handler ||
1543 mp->framedone_handler_data != data);
1545 mp->framedone_handler = NULL;
1546 mp->framedone_handler_data = NULL;
1549 static const struct dss_mgr_ops apply_mgr_ops = {
1550 .start_update = dss_mgr_start_update_compat,
1551 .enable = dss_mgr_enable_compat,
1552 .disable = dss_mgr_disable_compat,
1553 .set_timings = dss_mgr_set_timings_compat,
1554 .set_lcd_config = dss_mgr_set_lcd_config_compat,
1555 .register_framedone_handler = dss_mgr_register_framedone_handler_compat,
1556 .unregister_framedone_handler = dss_mgr_unregister_framedone_handler_compat,
1559 static int compat_refcnt;
1560 static DEFINE_MUTEX(compat_init_lock);
1562 int omapdss_compat_init(void)
1564 struct platform_device *pdev = dss_get_core_pdev();
1565 struct omap_dss_device *dssdev = NULL;
1568 mutex_lock(&compat_init_lock);
1570 if (compat_refcnt++ > 0)
1575 dss_init_overlay_managers(pdev);
1576 dss_init_overlays(pdev);
1578 for (i = 0; i < omap_dss_get_num_overlay_managers(); i++) {
1579 struct omap_overlay_manager *mgr;
1581 mgr = omap_dss_get_overlay_manager(i);
1583 mgr->set_output = &dss_mgr_set_output;
1584 mgr->unset_output = &dss_mgr_unset_output;
1585 mgr->apply = &omap_dss_mgr_apply;
1586 mgr->set_manager_info = &dss_mgr_set_info;
1587 mgr->get_manager_info = &dss_mgr_get_info;
1588 mgr->wait_for_go = &dss_mgr_wait_for_go;
1589 mgr->wait_for_vsync = &dss_mgr_wait_for_vsync;
1590 mgr->get_device = &dss_mgr_get_device;
1593 for (i = 0; i < omap_dss_get_num_overlays(); i++) {
1594 struct omap_overlay *ovl = omap_dss_get_overlay(i);
1596 ovl->is_enabled = &dss_ovl_is_enabled;
1597 ovl->enable = &dss_ovl_enable;
1598 ovl->disable = &dss_ovl_disable;
1599 ovl->set_manager = &dss_ovl_set_manager;
1600 ovl->unset_manager = &dss_ovl_unset_manager;
1601 ovl->set_overlay_info = &dss_ovl_set_info;
1602 ovl->get_overlay_info = &dss_ovl_get_info;
1603 ovl->wait_for_go = &dss_mgr_wait_for_go_ovl;
1604 ovl->get_device = &dss_ovl_get_device;
1607 r = dss_install_mgr_ops(&apply_mgr_ops);
1611 for_each_dss_dev(dssdev) {
1612 r = display_init_sysfs(pdev, dssdev);
1613 /* XXX uninit sysfs files on error */
1615 goto err_disp_sysfs;
1618 dispc_runtime_get();
1620 r = dss_dispc_initialize_irq();
1624 dispc_runtime_put();
1627 mutex_unlock(&compat_init_lock);
1632 dispc_runtime_put();
1635 dss_uninstall_mgr_ops();
1638 dss_uninit_overlay_managers(pdev);
1639 dss_uninit_overlays(pdev);
1643 mutex_unlock(&compat_init_lock);
1647 EXPORT_SYMBOL(omapdss_compat_init);
1649 void omapdss_compat_uninit(void)
1651 struct platform_device *pdev = dss_get_core_pdev();
1652 struct omap_dss_device *dssdev = NULL;
1654 mutex_lock(&compat_init_lock);
1656 if (--compat_refcnt > 0)
1659 dss_dispc_uninitialize_irq();
1661 for_each_dss_dev(dssdev)
1662 display_uninit_sysfs(pdev, dssdev);
1664 dss_uninstall_mgr_ops();
1666 dss_uninit_overlay_managers(pdev);
1667 dss_uninit_overlays(pdev);
1669 mutex_unlock(&compat_init_lock);
1671 EXPORT_SYMBOL(omapdss_compat_uninit);