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/omapfb_dss.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.color_mode = OMAP_DSS_COLOR_RGB16;
153 op->info.rotation_type = OMAP_DSS_ROT_DMA;
155 op->info.global_alpha = 255;
163 dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 3 : 0;
167 dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 2 : 0;
171 dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 1 : 0;
175 op->user_info = op->info;
179 * Initialize some of the lcd_config fields for TV manager, this lets
180 * us prevent checking if the manager is LCD or TV at some places
182 mp = &dss_data.mgr_priv_data_array[OMAP_DSS_CHANNEL_DIGIT];
184 mp->lcd_config.video_port_width = 24;
185 mp->lcd_config.clock_info.lck_div = 1;
186 mp->lcd_config.clock_info.pck_div = 1;
190 * A LCD manager's stallmode decides whether it is in manual or auto update. TV
191 * manager is always auto update, stallmode field for TV manager is false by
194 static bool ovl_manual_update(struct omap_overlay *ovl)
196 struct mgr_priv_data *mp = get_mgr_priv(ovl->manager);
198 return mp->lcd_config.stallmode;
201 static bool mgr_manual_update(struct omap_overlay_manager *mgr)
203 struct mgr_priv_data *mp = get_mgr_priv(mgr);
205 return mp->lcd_config.stallmode;
208 static int dss_check_settings_low(struct omap_overlay_manager *mgr,
211 struct omap_overlay_info *oi;
212 struct omap_overlay_manager_info *mi;
213 struct omap_overlay *ovl;
214 struct omap_overlay_info *ois[MAX_DSS_OVERLAYS];
215 struct ovl_priv_data *op;
216 struct mgr_priv_data *mp;
218 mp = get_mgr_priv(mgr);
223 if (applying && mp->user_info_dirty)
228 /* collect the infos to be tested into the array */
229 list_for_each_entry(ovl, &mgr->overlays, list) {
230 op = get_ovl_priv(ovl);
232 if (!op->enabled && !op->enabling)
234 else if (applying && op->user_info_dirty)
242 return dss_mgr_check(mgr, mi, &mp->timings, &mp->lcd_config, ois);
246 * check manager and overlay settings using overlay_info from data->info
248 static int dss_check_settings(struct omap_overlay_manager *mgr)
250 return dss_check_settings_low(mgr, false);
254 * check manager and overlay settings using overlay_info from ovl->info if
255 * dirty and from data->info otherwise
257 static int dss_check_settings_apply(struct omap_overlay_manager *mgr)
259 return dss_check_settings_low(mgr, true);
262 static bool need_isr(void)
264 const int num_mgrs = dss_feat_get_num_mgrs();
267 for (i = 0; i < num_mgrs; ++i) {
268 struct omap_overlay_manager *mgr;
269 struct mgr_priv_data *mp;
270 struct omap_overlay *ovl;
272 mgr = omap_dss_get_overlay_manager(i);
273 mp = get_mgr_priv(mgr);
278 if (mgr_manual_update(mgr)) {
279 /* to catch FRAMEDONE */
283 /* to catch GO bit going down */
287 /* to write new values to registers */
292 if (mp->shadow_info_dirty)
296 * NOTE: we don't check extra_info flags for disabled
297 * managers, once the manager is enabled, the extra_info
298 * related manager changes will be taken in by HW.
301 /* to write new values to registers */
302 if (mp->extra_info_dirty)
306 if (mp->shadow_extra_info_dirty)
309 list_for_each_entry(ovl, &mgr->overlays, list) {
310 struct ovl_priv_data *op;
312 op = get_ovl_priv(ovl);
315 * NOTE: we check extra_info flags even for
316 * disabled overlays, as extra_infos need to be
320 /* to write new values to registers */
321 if (op->extra_info_dirty)
325 if (op->shadow_extra_info_dirty)
331 /* to write new values to registers */
336 if (op->shadow_info_dirty)
345 static bool need_go(struct omap_overlay_manager *mgr)
347 struct omap_overlay *ovl;
348 struct mgr_priv_data *mp;
349 struct ovl_priv_data *op;
351 mp = get_mgr_priv(mgr);
353 if (mp->shadow_info_dirty || mp->shadow_extra_info_dirty)
356 list_for_each_entry(ovl, &mgr->overlays, list) {
357 op = get_ovl_priv(ovl);
358 if (op->shadow_info_dirty || op->shadow_extra_info_dirty)
365 /* returns true if an extra_info field is currently being updated */
366 static bool extra_info_update_ongoing(void)
368 const int num_mgrs = dss_feat_get_num_mgrs();
371 for (i = 0; i < num_mgrs; ++i) {
372 struct omap_overlay_manager *mgr;
373 struct omap_overlay *ovl;
374 struct mgr_priv_data *mp;
376 mgr = omap_dss_get_overlay_manager(i);
377 mp = get_mgr_priv(mgr);
385 if (mp->extra_info_dirty || mp->shadow_extra_info_dirty)
388 list_for_each_entry(ovl, &mgr->overlays, list) {
389 struct ovl_priv_data *op = get_ovl_priv(ovl);
391 if (op->extra_info_dirty || op->shadow_extra_info_dirty)
399 /* wait until no extra_info updates are pending */
400 static void wait_pending_extra_info_updates(void)
407 spin_lock_irqsave(&data_lock, flags);
409 updating = extra_info_update_ongoing();
412 spin_unlock_irqrestore(&data_lock, flags);
416 init_completion(&extra_updated_completion);
418 spin_unlock_irqrestore(&data_lock, flags);
420 t = msecs_to_jiffies(500);
421 r = wait_for_completion_timeout(&extra_updated_completion, t);
423 DSSWARN("timeout in wait_pending_extra_info_updates\n");
426 static struct omap_dss_device *dss_mgr_get_device(struct omap_overlay_manager *mgr)
428 struct omap_dss_device *dssdev;
430 dssdev = mgr->output;
435 dssdev = dssdev->dst;
443 static struct omap_dss_device *dss_ovl_get_device(struct omap_overlay *ovl)
445 return ovl->manager ? dss_mgr_get_device(ovl->manager) : NULL;
448 static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
450 unsigned long timeout = msecs_to_jiffies(500);
454 if (mgr->output == NULL)
457 r = dispc_runtime_get();
461 switch (mgr->output->id) {
462 case OMAP_DSS_OUTPUT_VENC:
463 irq = DISPC_IRQ_EVSYNC_ODD;
465 case OMAP_DSS_OUTPUT_HDMI:
466 irq = DISPC_IRQ_EVSYNC_EVEN;
469 irq = dispc_mgr_get_vsync_irq(mgr->id);
473 r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
480 static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
482 unsigned long timeout = msecs_to_jiffies(500);
483 struct mgr_priv_data *mp = get_mgr_priv(mgr);
489 spin_lock_irqsave(&data_lock, flags);
491 if (mgr_manual_update(mgr)) {
492 spin_unlock_irqrestore(&data_lock, flags);
497 spin_unlock_irqrestore(&data_lock, flags);
501 spin_unlock_irqrestore(&data_lock, flags);
503 r = dispc_runtime_get();
507 irq = dispc_mgr_get_vsync_irq(mgr->id);
511 bool shadow_dirty, dirty;
513 spin_lock_irqsave(&data_lock, flags);
514 dirty = mp->info_dirty;
515 shadow_dirty = mp->shadow_info_dirty;
516 spin_unlock_irqrestore(&data_lock, flags);
518 if (!dirty && !shadow_dirty) {
523 /* 4 iterations is the worst case:
524 * 1 - initial iteration, dirty = true (between VFP and VSYNC)
525 * 2 - first VSYNC, dirty = true
526 * 3 - dirty = false, shadow_dirty = true
527 * 4 - shadow_dirty = false */
529 DSSERR("mgr(%d)->wait_for_go() not finishing\n",
535 r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
536 if (r == -ERESTARTSYS)
540 DSSERR("mgr(%d)->wait_for_go() timeout\n", mgr->id);
550 static int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
552 unsigned long timeout = msecs_to_jiffies(500);
553 struct ovl_priv_data *op;
554 struct mgr_priv_data *mp;
563 mp = get_mgr_priv(ovl->manager);
565 spin_lock_irqsave(&data_lock, flags);
567 if (ovl_manual_update(ovl)) {
568 spin_unlock_irqrestore(&data_lock, flags);
573 spin_unlock_irqrestore(&data_lock, flags);
577 spin_unlock_irqrestore(&data_lock, flags);
579 r = dispc_runtime_get();
583 irq = dispc_mgr_get_vsync_irq(ovl->manager->id);
585 op = get_ovl_priv(ovl);
588 bool shadow_dirty, dirty;
590 spin_lock_irqsave(&data_lock, flags);
591 dirty = op->info_dirty;
592 shadow_dirty = op->shadow_info_dirty;
593 spin_unlock_irqrestore(&data_lock, flags);
595 if (!dirty && !shadow_dirty) {
600 /* 4 iterations is the worst case:
601 * 1 - initial iteration, dirty = true (between VFP and VSYNC)
602 * 2 - first VSYNC, dirty = true
603 * 3 - dirty = false, shadow_dirty = true
604 * 4 - shadow_dirty = false */
606 DSSERR("ovl(%d)->wait_for_go() not finishing\n",
612 r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
613 if (r == -ERESTARTSYS)
617 DSSERR("ovl(%d)->wait_for_go() timeout\n", ovl->id);
627 static void dss_ovl_write_regs(struct omap_overlay *ovl)
629 struct ovl_priv_data *op = get_ovl_priv(ovl);
630 struct omap_overlay_info *oi;
632 struct mgr_priv_data *mp;
635 DSSDBG("writing ovl %d regs\n", ovl->id);
637 if (!op->enabled || !op->info_dirty)
642 mp = get_mgr_priv(ovl->manager);
644 replication = dss_ovl_use_replication(mp->lcd_config, oi->color_mode);
646 r = dispc_ovl_setup(ovl->id, oi, replication, &mp->timings, false);
649 * We can't do much here, as this function can be called from
652 DSSERR("dispc_ovl_setup failed for ovl %d\n", ovl->id);
654 /* This will leave fifo configurations in a nonoptimal state */
656 dispc_ovl_enable(ovl->id, false);
660 op->info_dirty = false;
662 op->shadow_info_dirty = true;
665 static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
667 struct ovl_priv_data *op = get_ovl_priv(ovl);
668 struct mgr_priv_data *mp;
670 DSSDBG("writing ovl %d regs extra\n", ovl->id);
672 if (!op->extra_info_dirty)
675 /* note: write also when op->enabled == false, so that the ovl gets
678 dispc_ovl_enable(ovl->id, op->enabled);
679 dispc_ovl_set_fifo_threshold(ovl->id, op->fifo_low, op->fifo_high);
681 mp = get_mgr_priv(ovl->manager);
683 op->extra_info_dirty = false;
685 op->shadow_extra_info_dirty = true;
688 static void dss_mgr_write_regs(struct omap_overlay_manager *mgr)
690 struct mgr_priv_data *mp = get_mgr_priv(mgr);
691 struct omap_overlay *ovl;
693 DSSDBG("writing mgr %d regs\n", mgr->id);
700 /* Commit overlay settings */
701 list_for_each_entry(ovl, &mgr->overlays, list) {
702 dss_ovl_write_regs(ovl);
703 dss_ovl_write_regs_extra(ovl);
706 if (mp->info_dirty) {
707 dispc_mgr_setup(mgr->id, &mp->info);
709 mp->info_dirty = false;
711 mp->shadow_info_dirty = true;
715 static void dss_mgr_write_regs_extra(struct omap_overlay_manager *mgr)
717 struct mgr_priv_data *mp = get_mgr_priv(mgr);
719 DSSDBG("writing mgr %d regs extra\n", mgr->id);
721 if (!mp->extra_info_dirty)
724 dispc_mgr_set_timings(mgr->id, &mp->timings);
726 /* lcd_config parameters */
727 if (dss_mgr_is_lcd(mgr->id))
728 dispc_mgr_set_lcd_config(mgr->id, &mp->lcd_config);
730 mp->extra_info_dirty = false;
732 mp->shadow_extra_info_dirty = true;
735 static void dss_write_regs(void)
737 const int num_mgrs = omap_dss_get_num_overlay_managers();
740 for (i = 0; i < num_mgrs; ++i) {
741 struct omap_overlay_manager *mgr;
742 struct mgr_priv_data *mp;
745 mgr = omap_dss_get_overlay_manager(i);
746 mp = get_mgr_priv(mgr);
748 if (!mp->enabled || mgr_manual_update(mgr) || mp->busy)
751 r = dss_check_settings(mgr);
753 DSSERR("cannot write registers for manager %s: "
754 "illegal configuration\n", mgr->name);
758 dss_mgr_write_regs(mgr);
759 dss_mgr_write_regs_extra(mgr);
763 static void dss_set_go_bits(void)
765 const int num_mgrs = omap_dss_get_num_overlay_managers();
768 for (i = 0; i < num_mgrs; ++i) {
769 struct omap_overlay_manager *mgr;
770 struct mgr_priv_data *mp;
772 mgr = omap_dss_get_overlay_manager(i);
773 mp = get_mgr_priv(mgr);
775 if (!mp->enabled || mgr_manual_update(mgr) || mp->busy)
783 if (!dss_data.irq_enabled && need_isr())
784 dss_register_vsync_isr();
786 dispc_mgr_go(mgr->id);
791 static void mgr_clear_shadow_dirty(struct omap_overlay_manager *mgr)
793 struct omap_overlay *ovl;
794 struct mgr_priv_data *mp;
795 struct ovl_priv_data *op;
797 mp = get_mgr_priv(mgr);
798 mp->shadow_info_dirty = false;
799 mp->shadow_extra_info_dirty = false;
801 list_for_each_entry(ovl, &mgr->overlays, list) {
802 op = get_ovl_priv(ovl);
803 op->shadow_info_dirty = false;
804 op->shadow_extra_info_dirty = false;
808 static int dss_mgr_connect_compat(struct omap_overlay_manager *mgr,
809 struct omap_dss_device *dst)
811 return mgr->set_output(mgr, dst);
814 static void dss_mgr_disconnect_compat(struct omap_overlay_manager *mgr,
815 struct omap_dss_device *dst)
817 mgr->unset_output(mgr);
820 static void dss_mgr_start_update_compat(struct omap_overlay_manager *mgr)
822 struct mgr_priv_data *mp = get_mgr_priv(mgr);
826 spin_lock_irqsave(&data_lock, flags);
828 WARN_ON(mp->updating);
830 r = dss_check_settings(mgr);
832 DSSERR("cannot start manual update: illegal configuration\n");
833 spin_unlock_irqrestore(&data_lock, flags);
837 dss_mgr_write_regs(mgr);
838 dss_mgr_write_regs_extra(mgr);
842 if (!dss_data.irq_enabled && need_isr())
843 dss_register_vsync_isr();
845 dispc_mgr_enable_sync(mgr->id);
847 spin_unlock_irqrestore(&data_lock, flags);
850 static void dss_apply_irq_handler(void *data, u32 mask);
852 static void dss_register_vsync_isr(void)
854 const int num_mgrs = dss_feat_get_num_mgrs();
859 for (i = 0; i < num_mgrs; ++i)
860 mask |= dispc_mgr_get_vsync_irq(i);
862 for (i = 0; i < num_mgrs; ++i)
863 mask |= dispc_mgr_get_framedone_irq(i);
865 r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, mask);
868 dss_data.irq_enabled = true;
871 static void dss_unregister_vsync_isr(void)
873 const int num_mgrs = dss_feat_get_num_mgrs();
878 for (i = 0; i < num_mgrs; ++i)
879 mask |= dispc_mgr_get_vsync_irq(i);
881 for (i = 0; i < num_mgrs; ++i)
882 mask |= dispc_mgr_get_framedone_irq(i);
884 r = omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, mask);
887 dss_data.irq_enabled = false;
890 static void dss_apply_irq_handler(void *data, u32 mask)
892 const int num_mgrs = dss_feat_get_num_mgrs();
896 spin_lock(&data_lock);
898 /* clear busy, updating flags, shadow_dirty flags */
899 for (i = 0; i < num_mgrs; i++) {
900 struct omap_overlay_manager *mgr;
901 struct mgr_priv_data *mp;
903 mgr = omap_dss_get_overlay_manager(i);
904 mp = get_mgr_priv(mgr);
909 mp->updating = dispc_mgr_is_enabled(i);
911 if (!mgr_manual_update(mgr)) {
912 bool was_busy = mp->busy;
913 mp->busy = dispc_mgr_go_busy(i);
915 if (was_busy && !mp->busy)
916 mgr_clear_shadow_dirty(mgr);
923 extra_updating = extra_info_update_ongoing();
925 complete_all(&extra_updated_completion);
927 /* call framedone handlers for manual update displays */
928 for (i = 0; i < num_mgrs; i++) {
929 struct omap_overlay_manager *mgr;
930 struct mgr_priv_data *mp;
932 mgr = omap_dss_get_overlay_manager(i);
933 mp = get_mgr_priv(mgr);
935 if (!mgr_manual_update(mgr) || !mp->framedone_handler)
938 if (mask & dispc_mgr_get_framedone_irq(i))
939 mp->framedone_handler(mp->framedone_handler_data);
943 dss_unregister_vsync_isr();
945 spin_unlock(&data_lock);
948 static void omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
950 struct ovl_priv_data *op;
952 op = get_ovl_priv(ovl);
954 if (!op->user_info_dirty)
957 op->user_info_dirty = false;
958 op->info_dirty = true;
959 op->info = op->user_info;
962 static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
964 struct mgr_priv_data *mp;
966 mp = get_mgr_priv(mgr);
968 if (!mp->user_info_dirty)
971 mp->user_info_dirty = false;
972 mp->info_dirty = true;
973 mp->info = mp->user_info;
976 static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
979 struct omap_overlay *ovl;
982 DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
984 spin_lock_irqsave(&data_lock, flags);
986 r = dss_check_settings_apply(mgr);
988 spin_unlock_irqrestore(&data_lock, flags);
989 DSSERR("failed to apply settings: illegal configuration.\n");
993 /* Configure overlays */
994 list_for_each_entry(ovl, &mgr->overlays, list)
995 omap_dss_mgr_apply_ovl(ovl);
997 /* Configure manager */
998 omap_dss_mgr_apply_mgr(mgr);
1003 spin_unlock_irqrestore(&data_lock, flags);
1008 static void dss_apply_ovl_enable(struct omap_overlay *ovl, bool enable)
1010 struct ovl_priv_data *op;
1012 op = get_ovl_priv(ovl);
1014 if (op->enabled == enable)
1017 op->enabled = enable;
1018 op->extra_info_dirty = true;
1021 static void dss_apply_ovl_fifo_thresholds(struct omap_overlay *ovl,
1022 u32 fifo_low, u32 fifo_high)
1024 struct ovl_priv_data *op = get_ovl_priv(ovl);
1026 if (op->fifo_low == fifo_low && op->fifo_high == fifo_high)
1029 op->fifo_low = fifo_low;
1030 op->fifo_high = fifo_high;
1031 op->extra_info_dirty = true;
1034 static void dss_ovl_setup_fifo(struct omap_overlay *ovl)
1036 struct ovl_priv_data *op = get_ovl_priv(ovl);
1037 u32 fifo_low, fifo_high;
1038 bool use_fifo_merge = false;
1040 if (!op->enabled && !op->enabling)
1043 dispc_ovl_compute_fifo_thresholds(ovl->id, &fifo_low, &fifo_high,
1044 use_fifo_merge, ovl_manual_update(ovl));
1046 dss_apply_ovl_fifo_thresholds(ovl, fifo_low, fifo_high);
1049 static void dss_mgr_setup_fifos(struct omap_overlay_manager *mgr)
1051 struct omap_overlay *ovl;
1052 struct mgr_priv_data *mp;
1054 mp = get_mgr_priv(mgr);
1059 list_for_each_entry(ovl, &mgr->overlays, list)
1060 dss_ovl_setup_fifo(ovl);
1063 static void dss_setup_fifos(void)
1065 const int num_mgrs = omap_dss_get_num_overlay_managers();
1066 struct omap_overlay_manager *mgr;
1069 for (i = 0; i < num_mgrs; ++i) {
1070 mgr = omap_dss_get_overlay_manager(i);
1071 dss_mgr_setup_fifos(mgr);
1075 static int dss_mgr_enable_compat(struct omap_overlay_manager *mgr)
1077 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1078 unsigned long flags;
1081 mutex_lock(&apply_lock);
1086 spin_lock_irqsave(&data_lock, flags);
1090 r = dss_check_settings(mgr);
1092 DSSERR("failed to enable manager %d: check_settings failed\n",
1102 if (!mgr_manual_update(mgr))
1103 mp->updating = true;
1105 if (!dss_data.irq_enabled && need_isr())
1106 dss_register_vsync_isr();
1108 spin_unlock_irqrestore(&data_lock, flags);
1110 if (!mgr_manual_update(mgr))
1111 dispc_mgr_enable_sync(mgr->id);
1114 mutex_unlock(&apply_lock);
1119 mp->enabled = false;
1120 spin_unlock_irqrestore(&data_lock, flags);
1121 mutex_unlock(&apply_lock);
1125 static void dss_mgr_disable_compat(struct omap_overlay_manager *mgr)
1127 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1128 unsigned long flags;
1130 mutex_lock(&apply_lock);
1135 wait_pending_extra_info_updates();
1137 if (!mgr_manual_update(mgr))
1138 dispc_mgr_disable_sync(mgr->id);
1140 spin_lock_irqsave(&data_lock, flags);
1142 mp->updating = false;
1143 mp->enabled = false;
1145 spin_unlock_irqrestore(&data_lock, flags);
1148 mutex_unlock(&apply_lock);
1151 static int dss_mgr_set_info(struct omap_overlay_manager *mgr,
1152 struct omap_overlay_manager_info *info)
1154 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1155 unsigned long flags;
1158 r = dss_mgr_simple_check(mgr, info);
1162 spin_lock_irqsave(&data_lock, flags);
1164 mp->user_info = *info;
1165 mp->user_info_dirty = true;
1167 spin_unlock_irqrestore(&data_lock, flags);
1172 static void dss_mgr_get_info(struct omap_overlay_manager *mgr,
1173 struct omap_overlay_manager_info *info)
1175 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1176 unsigned long flags;
1178 spin_lock_irqsave(&data_lock, flags);
1180 *info = mp->user_info;
1182 spin_unlock_irqrestore(&data_lock, flags);
1185 static int dss_mgr_set_output(struct omap_overlay_manager *mgr,
1186 struct omap_dss_device *output)
1190 mutex_lock(&apply_lock);
1193 DSSERR("manager %s is already connected to an output\n",
1199 if ((mgr->supported_outputs & output->id) == 0) {
1200 DSSERR("output does not support manager %s\n",
1206 output->manager = mgr;
1207 mgr->output = output;
1209 mutex_unlock(&apply_lock);
1213 mutex_unlock(&apply_lock);
1217 static int dss_mgr_unset_output(struct omap_overlay_manager *mgr)
1220 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1221 unsigned long flags;
1223 mutex_lock(&apply_lock);
1226 DSSERR("failed to unset output, output not set\n");
1231 spin_lock_irqsave(&data_lock, flags);
1234 DSSERR("output can't be unset when manager is enabled\n");
1239 spin_unlock_irqrestore(&data_lock, flags);
1241 mgr->output->manager = NULL;
1244 mutex_unlock(&apply_lock);
1248 spin_unlock_irqrestore(&data_lock, flags);
1250 mutex_unlock(&apply_lock);
1255 static void dss_apply_mgr_timings(struct omap_overlay_manager *mgr,
1256 const struct omap_video_timings *timings)
1258 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1260 mp->timings = *timings;
1261 mp->extra_info_dirty = true;
1264 static void dss_mgr_set_timings_compat(struct omap_overlay_manager *mgr,
1265 const struct omap_video_timings *timings)
1267 unsigned long flags;
1268 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1270 spin_lock_irqsave(&data_lock, flags);
1273 DSSERR("cannot set timings for %s: manager needs to be disabled\n",
1278 dss_apply_mgr_timings(mgr, timings);
1280 spin_unlock_irqrestore(&data_lock, flags);
1283 static void dss_apply_mgr_lcd_config(struct omap_overlay_manager *mgr,
1284 const struct dss_lcd_mgr_config *config)
1286 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1288 mp->lcd_config = *config;
1289 mp->extra_info_dirty = true;
1292 static void dss_mgr_set_lcd_config_compat(struct omap_overlay_manager *mgr,
1293 const struct dss_lcd_mgr_config *config)
1295 unsigned long flags;
1296 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1298 spin_lock_irqsave(&data_lock, flags);
1301 DSSERR("cannot apply lcd config for %s: manager needs to be disabled\n",
1306 dss_apply_mgr_lcd_config(mgr, config);
1308 spin_unlock_irqrestore(&data_lock, flags);
1311 static int dss_ovl_set_info(struct omap_overlay *ovl,
1312 struct omap_overlay_info *info)
1314 struct ovl_priv_data *op = get_ovl_priv(ovl);
1315 unsigned long flags;
1318 r = dss_ovl_simple_check(ovl, info);
1322 spin_lock_irqsave(&data_lock, flags);
1324 op->user_info = *info;
1325 op->user_info_dirty = true;
1327 spin_unlock_irqrestore(&data_lock, flags);
1332 static void dss_ovl_get_info(struct omap_overlay *ovl,
1333 struct omap_overlay_info *info)
1335 struct ovl_priv_data *op = get_ovl_priv(ovl);
1336 unsigned long flags;
1338 spin_lock_irqsave(&data_lock, flags);
1340 *info = op->user_info;
1342 spin_unlock_irqrestore(&data_lock, flags);
1345 static int dss_ovl_set_manager(struct omap_overlay *ovl,
1346 struct omap_overlay_manager *mgr)
1348 struct ovl_priv_data *op = get_ovl_priv(ovl);
1349 unsigned long flags;
1355 mutex_lock(&apply_lock);
1358 DSSERR("overlay '%s' already has a manager '%s'\n",
1359 ovl->name, ovl->manager->name);
1364 r = dispc_runtime_get();
1368 spin_lock_irqsave(&data_lock, flags);
1371 spin_unlock_irqrestore(&data_lock, flags);
1372 DSSERR("overlay has to be disabled to change the manager\n");
1377 dispc_ovl_set_channel_out(ovl->id, mgr->id);
1380 list_add_tail(&ovl->list, &mgr->overlays);
1382 spin_unlock_irqrestore(&data_lock, flags);
1384 dispc_runtime_put();
1386 mutex_unlock(&apply_lock);
1391 dispc_runtime_put();
1393 mutex_unlock(&apply_lock);
1397 static int dss_ovl_unset_manager(struct omap_overlay *ovl)
1399 struct ovl_priv_data *op = get_ovl_priv(ovl);
1400 unsigned long flags;
1403 mutex_lock(&apply_lock);
1405 if (!ovl->manager) {
1406 DSSERR("failed to detach overlay: manager not set\n");
1411 spin_lock_irqsave(&data_lock, flags);
1414 spin_unlock_irqrestore(&data_lock, flags);
1415 DSSERR("overlay has to be disabled to unset the manager\n");
1420 spin_unlock_irqrestore(&data_lock, flags);
1422 /* wait for pending extra_info updates to ensure the ovl is disabled */
1423 wait_pending_extra_info_updates();
1426 * For a manual update display, there is no guarantee that the overlay
1427 * is really disabled in HW, we may need an extra update from this
1428 * manager before the configurations can go in. Return an error if the
1429 * overlay needed an update from the manager.
1431 * TODO: Instead of returning an error, try to do a dummy manager update
1432 * here to disable the overlay in hardware. Use the *GATED fields in
1433 * the DISPC_CONFIG registers to do a dummy update.
1435 spin_lock_irqsave(&data_lock, flags);
1437 if (ovl_manual_update(ovl) && op->extra_info_dirty) {
1438 spin_unlock_irqrestore(&data_lock, flags);
1439 DSSERR("need an update to change the manager\n");
1444 ovl->manager = NULL;
1445 list_del(&ovl->list);
1447 spin_unlock_irqrestore(&data_lock, flags);
1449 mutex_unlock(&apply_lock);
1453 mutex_unlock(&apply_lock);
1457 static bool dss_ovl_is_enabled(struct omap_overlay *ovl)
1459 struct ovl_priv_data *op = get_ovl_priv(ovl);
1460 unsigned long flags;
1463 spin_lock_irqsave(&data_lock, flags);
1467 spin_unlock_irqrestore(&data_lock, flags);
1472 static int dss_ovl_enable(struct omap_overlay *ovl)
1474 struct ovl_priv_data *op = get_ovl_priv(ovl);
1475 unsigned long flags;
1478 mutex_lock(&apply_lock);
1485 if (ovl->manager == NULL || ovl->manager->output == NULL) {
1490 spin_lock_irqsave(&data_lock, flags);
1492 op->enabling = true;
1494 r = dss_check_settings(ovl->manager);
1496 DSSERR("failed to enable overlay %d: check_settings failed\n",
1503 op->enabling = false;
1504 dss_apply_ovl_enable(ovl, true);
1509 spin_unlock_irqrestore(&data_lock, flags);
1511 mutex_unlock(&apply_lock);
1515 op->enabling = false;
1516 spin_unlock_irqrestore(&data_lock, flags);
1518 mutex_unlock(&apply_lock);
1522 static int dss_ovl_disable(struct omap_overlay *ovl)
1524 struct ovl_priv_data *op = get_ovl_priv(ovl);
1525 unsigned long flags;
1528 mutex_lock(&apply_lock);
1535 if (ovl->manager == NULL || ovl->manager->output == NULL) {
1540 spin_lock_irqsave(&data_lock, flags);
1542 dss_apply_ovl_enable(ovl, false);
1546 spin_unlock_irqrestore(&data_lock, flags);
1548 mutex_unlock(&apply_lock);
1553 mutex_unlock(&apply_lock);
1557 static int dss_mgr_register_framedone_handler_compat(struct omap_overlay_manager *mgr,
1558 void (*handler)(void *), void *data)
1560 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1562 if (mp->framedone_handler)
1565 mp->framedone_handler = handler;
1566 mp->framedone_handler_data = data;
1571 static void dss_mgr_unregister_framedone_handler_compat(struct omap_overlay_manager *mgr,
1572 void (*handler)(void *), void *data)
1574 struct mgr_priv_data *mp = get_mgr_priv(mgr);
1576 WARN_ON(mp->framedone_handler != handler ||
1577 mp->framedone_handler_data != data);
1579 mp->framedone_handler = NULL;
1580 mp->framedone_handler_data = NULL;
1583 static const struct dss_mgr_ops apply_mgr_ops = {
1584 .connect = dss_mgr_connect_compat,
1585 .disconnect = dss_mgr_disconnect_compat,
1586 .start_update = dss_mgr_start_update_compat,
1587 .enable = dss_mgr_enable_compat,
1588 .disable = dss_mgr_disable_compat,
1589 .set_timings = dss_mgr_set_timings_compat,
1590 .set_lcd_config = dss_mgr_set_lcd_config_compat,
1591 .register_framedone_handler = dss_mgr_register_framedone_handler_compat,
1592 .unregister_framedone_handler = dss_mgr_unregister_framedone_handler_compat,
1595 static int compat_refcnt;
1596 static DEFINE_MUTEX(compat_init_lock);
1598 int omapdss_compat_init(void)
1600 struct platform_device *pdev = dss_get_core_pdev();
1603 mutex_lock(&compat_init_lock);
1605 if (compat_refcnt++ > 0)
1610 dss_init_overlay_managers_sysfs(pdev);
1611 dss_init_overlays(pdev);
1613 for (i = 0; i < omap_dss_get_num_overlay_managers(); i++) {
1614 struct omap_overlay_manager *mgr;
1616 mgr = omap_dss_get_overlay_manager(i);
1618 mgr->set_output = &dss_mgr_set_output;
1619 mgr->unset_output = &dss_mgr_unset_output;
1620 mgr->apply = &omap_dss_mgr_apply;
1621 mgr->set_manager_info = &dss_mgr_set_info;
1622 mgr->get_manager_info = &dss_mgr_get_info;
1623 mgr->wait_for_go = &dss_mgr_wait_for_go;
1624 mgr->wait_for_vsync = &dss_mgr_wait_for_vsync;
1625 mgr->get_device = &dss_mgr_get_device;
1628 for (i = 0; i < omap_dss_get_num_overlays(); i++) {
1629 struct omap_overlay *ovl = omap_dss_get_overlay(i);
1631 ovl->is_enabled = &dss_ovl_is_enabled;
1632 ovl->enable = &dss_ovl_enable;
1633 ovl->disable = &dss_ovl_disable;
1634 ovl->set_manager = &dss_ovl_set_manager;
1635 ovl->unset_manager = &dss_ovl_unset_manager;
1636 ovl->set_overlay_info = &dss_ovl_set_info;
1637 ovl->get_overlay_info = &dss_ovl_get_info;
1638 ovl->wait_for_go = &dss_mgr_wait_for_go_ovl;
1639 ovl->get_device = &dss_ovl_get_device;
1642 r = dss_install_mgr_ops(&apply_mgr_ops);
1646 r = display_init_sysfs(pdev);
1648 goto err_disp_sysfs;
1650 dispc_runtime_get();
1652 r = dss_dispc_initialize_irq();
1656 dispc_runtime_put();
1659 mutex_unlock(&compat_init_lock);
1664 dispc_runtime_put();
1665 display_uninit_sysfs(pdev);
1668 dss_uninstall_mgr_ops();
1671 dss_uninit_overlay_managers_sysfs(pdev);
1672 dss_uninit_overlays(pdev);
1676 mutex_unlock(&compat_init_lock);
1680 EXPORT_SYMBOL(omapdss_compat_init);
1682 void omapdss_compat_uninit(void)
1684 struct platform_device *pdev = dss_get_core_pdev();
1686 mutex_lock(&compat_init_lock);
1688 if (--compat_refcnt > 0)
1691 dss_dispc_uninitialize_irq();
1693 display_uninit_sysfs(pdev);
1695 dss_uninstall_mgr_ops();
1697 dss_uninit_overlay_managers_sysfs(pdev);
1698 dss_uninit_overlays(pdev);
1700 mutex_unlock(&compat_init_lock);
1702 EXPORT_SYMBOL(omapdss_compat_uninit);