2 * linux/drivers/video/omap2/dss/manager.c
4 * Copyright (C) 2009 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/>.
23 #define DSS_SUBSYS_NAME "MANAGER"
25 #include <linux/kernel.h>
26 #include <linux/slab.h>
27 #include <linux/module.h>
28 #include <linux/platform_device.h>
29 #include <linux/spinlock.h>
30 #include <linux/jiffies.h>
32 #include <plat/display.h>
37 static int num_managers;
38 static struct list_head manager_list;
40 static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
42 return snprintf(buf, PAGE_SIZE, "%s\n", mgr->name);
45 static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf)
47 return snprintf(buf, PAGE_SIZE, "%s\n",
48 mgr->device ? mgr->device->name : "<none>");
51 static ssize_t manager_display_store(struct omap_overlay_manager *mgr,
52 const char *buf, size_t size)
56 struct omap_dss_device *dssdev = NULL;
58 int match(struct omap_dss_device *dssdev, void *data)
60 const char *str = data;
61 return sysfs_streq(dssdev->name, str);
64 if (buf[size-1] == '\n')
68 dssdev = omap_dss_find_device((void *)buf, match);
70 if (len > 0 && dssdev == NULL)
74 DSSDBG("display %s found\n", dssdev->name);
77 r = mgr->unset_device(mgr);
79 DSSERR("failed to unset display\n");
85 r = mgr->set_device(mgr, dssdev);
87 DSSERR("failed to set manager\n");
93 DSSERR("failed to apply dispc config\n");
100 omap_dss_put_device(dssdev);
105 static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr,
108 return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.default_color);
111 static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr,
112 const char *buf, size_t size)
114 struct omap_overlay_manager_info info;
118 if (sscanf(buf, "%d", &color) != 1)
121 mgr->get_manager_info(mgr, &info);
123 info.default_color = color;
125 r = mgr->set_manager_info(mgr, &info);
136 static const char *trans_key_type_str[] = {
141 static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr,
144 enum omap_dss_trans_key_type key_type;
146 key_type = mgr->info.trans_key_type;
147 BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str));
149 return snprintf(buf, PAGE_SIZE, "%s\n", trans_key_type_str[key_type]);
152 static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr,
153 const char *buf, size_t size)
155 enum omap_dss_trans_key_type key_type;
156 struct omap_overlay_manager_info info;
159 for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
160 key_type < ARRAY_SIZE(trans_key_type_str); key_type++) {
161 if (sysfs_streq(buf, trans_key_type_str[key_type]))
165 if (key_type == ARRAY_SIZE(trans_key_type_str))
168 mgr->get_manager_info(mgr, &info);
170 info.trans_key_type = key_type;
172 r = mgr->set_manager_info(mgr, &info);
183 static ssize_t manager_trans_key_value_show(struct omap_overlay_manager *mgr,
186 return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_key);
189 static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr,
190 const char *buf, size_t size)
192 struct omap_overlay_manager_info info;
196 if (sscanf(buf, "%d", &key_value) != 1)
199 mgr->get_manager_info(mgr, &info);
201 info.trans_key = key_value;
203 r = mgr->set_manager_info(mgr, &info);
214 static ssize_t manager_trans_key_enabled_show(struct omap_overlay_manager *mgr,
217 return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_enabled);
220 static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
221 const char *buf, size_t size)
223 struct omap_overlay_manager_info info;
227 if (sscanf(buf, "%d", &enable) != 1)
230 mgr->get_manager_info(mgr, &info);
232 info.trans_enabled = enable ? true : false;
234 r = mgr->set_manager_info(mgr, &info);
245 static ssize_t manager_alpha_blending_enabled_show(
246 struct omap_overlay_manager *mgr, char *buf)
248 return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.alpha_enabled);
251 static ssize_t manager_alpha_blending_enabled_store(
252 struct omap_overlay_manager *mgr,
253 const char *buf, size_t size)
255 struct omap_overlay_manager_info info;
259 if (sscanf(buf, "%d", &enable) != 1)
262 mgr->get_manager_info(mgr, &info);
264 info.alpha_enabled = enable ? true : false;
266 r = mgr->set_manager_info(mgr, &info);
277 struct manager_attribute {
278 struct attribute attr;
279 ssize_t (*show)(struct omap_overlay_manager *, char *);
280 ssize_t (*store)(struct omap_overlay_manager *, const char *, size_t);
283 #define MANAGER_ATTR(_name, _mode, _show, _store) \
284 struct manager_attribute manager_attr_##_name = \
285 __ATTR(_name, _mode, _show, _store)
287 static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL);
288 static MANAGER_ATTR(display, S_IRUGO|S_IWUSR,
289 manager_display_show, manager_display_store);
290 static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR,
291 manager_default_color_show, manager_default_color_store);
292 static MANAGER_ATTR(trans_key_type, S_IRUGO|S_IWUSR,
293 manager_trans_key_type_show, manager_trans_key_type_store);
294 static MANAGER_ATTR(trans_key_value, S_IRUGO|S_IWUSR,
295 manager_trans_key_value_show, manager_trans_key_value_store);
296 static MANAGER_ATTR(trans_key_enabled, S_IRUGO|S_IWUSR,
297 manager_trans_key_enabled_show,
298 manager_trans_key_enabled_store);
299 static MANAGER_ATTR(alpha_blending_enabled, S_IRUGO|S_IWUSR,
300 manager_alpha_blending_enabled_show,
301 manager_alpha_blending_enabled_store);
304 static struct attribute *manager_sysfs_attrs[] = {
305 &manager_attr_name.attr,
306 &manager_attr_display.attr,
307 &manager_attr_default_color.attr,
308 &manager_attr_trans_key_type.attr,
309 &manager_attr_trans_key_value.attr,
310 &manager_attr_trans_key_enabled.attr,
311 &manager_attr_alpha_blending_enabled.attr,
315 static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr,
318 struct omap_overlay_manager *manager;
319 struct manager_attribute *manager_attr;
321 manager = container_of(kobj, struct omap_overlay_manager, kobj);
322 manager_attr = container_of(attr, struct manager_attribute, attr);
324 if (!manager_attr->show)
327 return manager_attr->show(manager, buf);
330 static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr,
331 const char *buf, size_t size)
333 struct omap_overlay_manager *manager;
334 struct manager_attribute *manager_attr;
336 manager = container_of(kobj, struct omap_overlay_manager, kobj);
337 manager_attr = container_of(attr, struct manager_attribute, attr);
339 if (!manager_attr->store)
342 return manager_attr->store(manager, buf, size);
345 static const struct sysfs_ops manager_sysfs_ops = {
346 .show = manager_attr_show,
347 .store = manager_attr_store,
350 static struct kobj_type manager_ktype = {
351 .sysfs_ops = &manager_sysfs_ops,
352 .default_attrs = manager_sysfs_attrs,
356 * We have 4 levels of cache for the dispc settings. First two are in SW and
357 * the latter two in HW.
359 * +--------------------+
360 * |overlay/manager_info|
361 * +--------------------+
365 * +--------------------+
367 * +--------------------+
371 * +--------------------+
372 * | shadow registers |
373 * +--------------------+
375 * VFP or lcd/digit_enable
377 * +--------------------+
379 * +--------------------+
382 struct overlay_cache_data {
383 /* If true, cache changed, but not written to shadow registers. Set
384 * in apply(), cleared when registers written. */
386 /* If true, shadow registers contain changed values not yet in real
387 * registers. Set when writing to shadow registers, cleared at
398 enum omap_color_mode color_mode;
400 enum omap_dss_rotation_type rotation_type;
405 u16 out_width; /* if 0, out_width == width */
406 u16 out_height; /* if 0, out_height == height */
409 enum omap_channel channel;
413 enum omap_burst_size burst_size;
420 struct manager_cache_data {
421 /* If true, cache changed, but not written to shadow registers. Set
422 * in apply(), cleared when registers written. */
424 /* If true, shadow registers contain changed values not yet in real
425 * registers. Set when writing to shadow registers, cleared at
431 enum omap_dss_trans_key_type trans_key_type;
437 bool manual_upd_display;
439 bool do_manual_update;
441 /* manual update region */
447 struct overlay_cache_data overlay_cache[3];
448 struct manager_cache_data manager_cache[2];
455 static int omap_dss_set_device(struct omap_overlay_manager *mgr,
456 struct omap_dss_device *dssdev)
461 if (dssdev->manager) {
462 DSSERR("display '%s' already has a manager '%s'\n",
463 dssdev->name, dssdev->manager->name);
467 if ((mgr->supported_displays & dssdev->type) == 0) {
468 DSSERR("display '%s' does not support manager '%s'\n",
469 dssdev->name, mgr->name);
473 for (i = 0; i < mgr->num_overlays; i++) {
474 struct omap_overlay *ovl = mgr->overlays[i];
476 if (ovl->manager != mgr || !ovl->info.enabled)
479 r = dss_check_overlay(ovl, dssdev);
484 dssdev->manager = mgr;
485 mgr->device = dssdev;
486 mgr->device_changed = true;
491 static int omap_dss_unset_device(struct omap_overlay_manager *mgr)
494 DSSERR("failed to unset display, display not set.\n");
498 mgr->device->manager = NULL;
500 mgr->device_changed = true;
505 static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
507 unsigned long timeout = msecs_to_jiffies(500);
510 if (mgr->device->type == OMAP_DISPLAY_TYPE_VENC)
511 irq = DISPC_IRQ_EVSYNC_ODD;
513 irq = DISPC_IRQ_VSYNC;
515 return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
518 static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
520 unsigned long timeout = msecs_to_jiffies(500);
521 struct manager_cache_data *mc;
522 enum omap_channel channel;
526 struct omap_dss_device *dssdev = mgr->device;
531 if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) {
532 irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
533 channel = OMAP_DSS_CHANNEL_DIGIT;
535 if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
536 enum omap_dss_update_mode mode;
537 mode = dssdev->driver->get_update_mode(dssdev);
538 if (mode != OMAP_DSS_UPDATE_AUTO)
541 irq = DISPC_IRQ_FRAMEDONE;
543 irq = DISPC_IRQ_VSYNC;
545 channel = OMAP_DSS_CHANNEL_LCD;
548 mc = &dss_cache.manager_cache[mgr->id];
552 bool shadow_dirty, dirty;
554 spin_lock_irqsave(&dss_cache.lock, flags);
556 shadow_dirty = mc->shadow_dirty;
557 spin_unlock_irqrestore(&dss_cache.lock, flags);
559 if (!dirty && !shadow_dirty) {
564 /* 4 iterations is the worst case:
565 * 1 - initial iteration, dirty = true (between VFP and VSYNC)
566 * 2 - first VSYNC, dirty = true
567 * 3 - dirty = false, shadow_dirty = true
568 * 4 - shadow_dirty = false */
570 DSSERR("mgr(%d)->wait_for_go() not finishing\n",
576 r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
577 if (r == -ERESTARTSYS)
581 DSSERR("mgr(%d)->wait_for_go() timeout\n", mgr->id);
589 int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
591 unsigned long timeout = msecs_to_jiffies(500);
592 enum omap_channel channel;
593 struct overlay_cache_data *oc;
594 struct omap_dss_device *dssdev;
599 if (!ovl->manager || !ovl->manager->device)
602 dssdev = ovl->manager->device;
604 if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) {
605 irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
606 channel = OMAP_DSS_CHANNEL_DIGIT;
608 if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
609 enum omap_dss_update_mode mode;
610 mode = dssdev->driver->get_update_mode(dssdev);
611 if (mode != OMAP_DSS_UPDATE_AUTO)
614 irq = DISPC_IRQ_FRAMEDONE;
616 irq = DISPC_IRQ_VSYNC;
618 channel = OMAP_DSS_CHANNEL_LCD;
621 oc = &dss_cache.overlay_cache[ovl->id];
625 bool shadow_dirty, dirty;
627 spin_lock_irqsave(&dss_cache.lock, flags);
629 shadow_dirty = oc->shadow_dirty;
630 spin_unlock_irqrestore(&dss_cache.lock, flags);
632 if (!dirty && !shadow_dirty) {
637 /* 4 iterations is the worst case:
638 * 1 - initial iteration, dirty = true (between VFP and VSYNC)
639 * 2 - first VSYNC, dirty = true
640 * 3 - dirty = false, shadow_dirty = true
641 * 4 - shadow_dirty = false */
643 DSSERR("ovl(%d)->wait_for_go() not finishing\n",
649 r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
650 if (r == -ERESTARTSYS)
654 DSSERR("ovl(%d)->wait_for_go() timeout\n", ovl->id);
662 static int overlay_enabled(struct omap_overlay *ovl)
664 return ovl->info.enabled && ovl->manager && ovl->manager->device;
667 /* Is rect1 a subset of rect2? */
668 static bool rectangle_subset(int x1, int y1, int w1, int h1,
669 int x2, int y2, int w2, int h2)
671 if (x1 < x2 || y1 < y2)
674 if (x1 + w1 > x2 + w2)
677 if (y1 + h1 > y2 + h2)
683 /* Do rect1 and rect2 overlap? */
684 static bool rectangle_intersects(int x1, int y1, int w1, int h1,
685 int x2, int y2, int w2, int h2)
702 static bool dispc_is_overlay_scaled(struct overlay_cache_data *oc)
704 if (oc->out_width != 0 && oc->width != oc->out_width)
707 if (oc->out_height != 0 && oc->height != oc->out_height)
713 static int configure_overlay(enum omap_plane plane)
715 struct overlay_cache_data *c;
716 struct manager_cache_data *mc;
722 DSSDBGF("%d", plane);
724 c = &dss_cache.overlay_cache[plane];
727 dispc_enable_plane(plane, 0);
731 mc = &dss_cache.manager_cache[c->channel];
737 outw = c->out_width == 0 ? c->width : c->out_width;
738 outh = c->out_height == 0 ? c->height : c->out_height;
741 if (c->manual_update && mc->do_manual_update) {
743 /* If the overlay is outside the update region, disable it */
744 if (!rectangle_intersects(mc->x, mc->y, mc->w, mc->h,
746 dispc_enable_plane(plane, 0);
750 switch (c->color_mode) {
751 case OMAP_DSS_COLOR_RGB16:
752 case OMAP_DSS_COLOR_ARGB16:
753 case OMAP_DSS_COLOR_YUV2:
754 case OMAP_DSS_COLOR_UYVY:
758 case OMAP_DSS_COLOR_RGB24P:
762 case OMAP_DSS_COLOR_RGB24U:
763 case OMAP_DSS_COLOR_ARGB32:
764 case OMAP_DSS_COLOR_RGBA32:
765 case OMAP_DSS_COLOR_RGBX32:
773 if (dispc_is_overlay_scaled(c)) {
774 /* If the overlay is scaled, the update area has
775 * already been enlarged to cover the whole overlay. We
776 * only need to adjust x/y here */
777 x = c->pos_x - mc->x;
778 y = c->pos_y - mc->y;
780 if (mc->x > c->pos_x) {
782 w -= (mc->x - c->pos_x);
783 paddr += (mc->x - c->pos_x) * bpp / 8;
785 x = c->pos_x - mc->x;
788 if (mc->y > c->pos_y) {
790 h -= (mc->y - c->pos_y);
791 paddr += (mc->y - c->pos_y) * c->screen_width *
794 y = c->pos_y - mc->y;
798 w -= (x+w) - (mc->w);
801 h -= (y+h) - (mc->h);
808 r = dispc_setup_plane(plane,
822 /* this shouldn't happen */
823 DSSERR("dispc_setup_plane failed for ovl %d\n", plane);
824 dispc_enable_plane(plane, 0);
828 dispc_enable_replication(plane, c->replication);
830 dispc_set_burst_size(plane, c->burst_size);
831 dispc_setup_plane_fifo(plane, c->fifo_low, c->fifo_high);
833 dispc_enable_plane(plane, 1);
838 static void configure_manager(enum omap_channel channel)
840 struct manager_cache_data *c;
842 DSSDBGF("%d", channel);
844 c = &dss_cache.manager_cache[channel];
846 dispc_set_default_color(channel, c->default_color);
847 dispc_set_trans_key(channel, c->trans_key_type, c->trans_key);
848 dispc_enable_trans_key(channel, c->trans_enabled);
849 dispc_enable_alpha_blending(channel, c->alpha_enabled);
852 /* configure_dispc() tries to write values from cache to shadow registers.
853 * It writes only to those managers/overlays that are not busy.
854 * returns 0 if everything could be written to shadow registers.
855 * returns 1 if not everything could be written to shadow registers. */
856 static int configure_dispc(void)
858 struct overlay_cache_data *oc;
859 struct manager_cache_data *mc;
860 const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
861 const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
871 mgr_busy[0] = dispc_go_busy(0);
872 mgr_busy[1] = dispc_go_busy(1);
876 /* Commit overlay settings */
877 for (i = 0; i < num_ovls; ++i) {
878 oc = &dss_cache.overlay_cache[i];
879 mc = &dss_cache.manager_cache[oc->channel];
884 if (oc->manual_update && !mc->do_manual_update)
887 if (mgr_busy[oc->channel]) {
892 r = configure_overlay(i);
894 DSSERR("configure_overlay %d failed\n", i);
897 oc->shadow_dirty = true;
898 mgr_go[oc->channel] = true;
901 /* Commit manager settings */
902 for (i = 0; i < num_mgrs; ++i) {
903 mc = &dss_cache.manager_cache[i];
908 if (mc->manual_update && !mc->do_manual_update)
916 configure_manager(i);
918 mc->shadow_dirty = true;
923 for (i = 0; i < num_mgrs; ++i) {
924 mc = &dss_cache.manager_cache[i];
929 /* We don't need GO with manual update display. LCD iface will
930 * always be turned off after frame, and new settings will be
931 * taken in to use at next update */
932 if (!mc->manual_upd_display)
944 /* Make the coordinates even. There are some strange problems with OMAP and
945 * partial DSI update when the update widths are odd. */
946 static void make_even(u16 *x, u16 *w)
960 /* Configure dispc for partial update. Return possibly modified update
962 void dss_setup_partial_planes(struct omap_dss_device *dssdev,
963 u16 *xi, u16 *yi, u16 *wi, u16 *hi)
965 struct overlay_cache_data *oc;
966 struct manager_cache_data *mc;
967 const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
968 struct omap_overlay_manager *mgr;
978 DSSDBG("dispc_setup_partial_planes %d,%d %dx%d\n",
981 mgr = dssdev->manager;
984 DSSDBG("no manager\n");
990 spin_lock_irqsave(&dss_cache.lock, flags);
992 /* We need to show the whole overlay if it is scaled. So look for
993 * those, and make the update area larger if found.
994 * Also mark the overlay cache dirty */
995 for (i = 0; i < num_ovls; ++i) {
996 unsigned x1, y1, x2, y2;
999 oc = &dss_cache.overlay_cache[i];
1001 if (oc->channel != mgr->id)
1009 if (!dispc_is_overlay_scaled(oc))
1012 outw = oc->out_width == 0 ? oc->width : oc->out_width;
1013 outh = oc->out_height == 0 ? oc->height : oc->out_height;
1015 /* is the overlay outside the update region? */
1016 if (!rectangle_intersects(x, y, w, h,
1017 oc->pos_x, oc->pos_y,
1021 /* if the overlay totally inside the update region? */
1022 if (rectangle_subset(oc->pos_x, oc->pos_y, outw, outh,
1036 if ((x + w) < (oc->pos_x + outw))
1037 x2 = oc->pos_x + outw;
1041 if ((y + h) < (oc->pos_y + outh))
1042 y2 = oc->pos_y + outh;
1053 DSSDBG("changing upd area due to ovl(%d) scaling %d,%d %dx%d\n",
1057 mc = &dss_cache.manager_cache[mgr->id];
1058 mc->do_manual_update = true;
1066 mc->do_manual_update = false;
1068 spin_unlock_irqrestore(&dss_cache.lock, flags);
1076 void dss_start_update(struct omap_dss_device *dssdev)
1078 struct manager_cache_data *mc;
1079 struct overlay_cache_data *oc;
1080 const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
1081 const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
1082 struct omap_overlay_manager *mgr;
1085 mgr = dssdev->manager;
1087 for (i = 0; i < num_ovls; ++i) {
1088 oc = &dss_cache.overlay_cache[i];
1089 if (oc->channel != mgr->id)
1092 oc->shadow_dirty = false;
1095 for (i = 0; i < num_mgrs; ++i) {
1096 mc = &dss_cache.manager_cache[i];
1100 mc->shadow_dirty = false;
1103 dssdev->manager->enable(dssdev->manager);
1106 static void dss_apply_irq_handler(void *data, u32 mask)
1108 struct manager_cache_data *mc;
1109 struct overlay_cache_data *oc;
1110 const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
1111 const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
1115 mgr_busy[0] = dispc_go_busy(0);
1116 mgr_busy[1] = dispc_go_busy(1);
1118 spin_lock(&dss_cache.lock);
1120 for (i = 0; i < num_ovls; ++i) {
1121 oc = &dss_cache.overlay_cache[i];
1122 if (!mgr_busy[oc->channel])
1123 oc->shadow_dirty = false;
1126 for (i = 0; i < num_mgrs; ++i) {
1127 mc = &dss_cache.manager_cache[i];
1129 mc->shadow_dirty = false;
1132 r = configure_dispc();
1136 /* re-read busy flags */
1137 mgr_busy[0] = dispc_go_busy(0);
1138 mgr_busy[1] = dispc_go_busy(1);
1140 /* keep running as long as there are busy managers, so that
1141 * we can collect overlay-applied information */
1142 for (i = 0; i < num_mgrs; ++i) {
1147 omap_dispc_unregister_isr(dss_apply_irq_handler, NULL,
1148 DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
1149 DISPC_IRQ_EVSYNC_EVEN);
1150 dss_cache.irq_enabled = false;
1153 spin_unlock(&dss_cache.lock);
1156 static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
1158 struct overlay_cache_data *oc;
1159 struct manager_cache_data *mc;
1161 struct omap_overlay *ovl;
1162 int num_planes_enabled = 0;
1164 unsigned long flags;
1167 DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
1169 spin_lock_irqsave(&dss_cache.lock, flags);
1171 /* Configure overlays */
1172 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
1173 struct omap_dss_device *dssdev;
1175 ovl = omap_dss_get_overlay(i);
1177 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
1180 oc = &dss_cache.overlay_cache[ovl->id];
1182 if (!overlay_enabled(ovl)) {
1184 oc->enabled = false;
1190 if (!ovl->info_dirty) {
1192 ++num_planes_enabled;
1196 dssdev = ovl->manager->device;
1198 if (dss_check_overlay(ovl, dssdev)) {
1200 oc->enabled = false;
1206 ovl->info_dirty = false;
1209 oc->paddr = ovl->info.paddr;
1210 oc->vaddr = ovl->info.vaddr;
1211 oc->screen_width = ovl->info.screen_width;
1212 oc->width = ovl->info.width;
1213 oc->height = ovl->info.height;
1214 oc->color_mode = ovl->info.color_mode;
1215 oc->rotation = ovl->info.rotation;
1216 oc->rotation_type = ovl->info.rotation_type;
1217 oc->mirror = ovl->info.mirror;
1218 oc->pos_x = ovl->info.pos_x;
1219 oc->pos_y = ovl->info.pos_y;
1220 oc->out_width = ovl->info.out_width;
1221 oc->out_height = ovl->info.out_height;
1222 oc->global_alpha = ovl->info.global_alpha;
1225 dss_use_replication(dssdev, ovl->info.color_mode);
1227 oc->ilace = dssdev->type == OMAP_DISPLAY_TYPE_VENC;
1229 oc->channel = ovl->manager->id;
1234 dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE &&
1235 dssdev->driver->get_update_mode(dssdev) !=
1236 OMAP_DSS_UPDATE_AUTO;
1238 ++num_planes_enabled;
1241 /* Configure managers */
1242 list_for_each_entry(mgr, &manager_list, list) {
1243 struct omap_dss_device *dssdev;
1245 if (!(mgr->caps & OMAP_DSS_OVL_MGR_CAP_DISPC))
1248 mc = &dss_cache.manager_cache[mgr->id];
1250 if (mgr->device_changed) {
1251 mgr->device_changed = false;
1252 mgr->info_dirty = true;
1255 if (!mgr->info_dirty)
1261 dssdev = mgr->device;
1263 mgr->info_dirty = false;
1266 mc->default_color = mgr->info.default_color;
1267 mc->trans_key_type = mgr->info.trans_key_type;
1268 mc->trans_key = mgr->info.trans_key;
1269 mc->trans_enabled = mgr->info.trans_enabled;
1270 mc->alpha_enabled = mgr->info.alpha_enabled;
1272 mc->manual_upd_display =
1273 dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
1276 dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE &&
1277 dssdev->driver->get_update_mode(dssdev) !=
1278 OMAP_DSS_UPDATE_AUTO;
1281 /* XXX TODO: Try to get fifomerge working. The problem is that it
1282 * affects both managers, not individually but at the same time. This
1283 * means the change has to be well synchronized. I guess the proper way
1284 * is to have a two step process for fifo merge:
1286 * 1. disable other planes, leaving one plane enabled
1287 * 2. wait until the planes are disabled on HW
1288 * 3. config merged fifo thresholds, enable fifomerge
1289 * fifomerge disable:
1290 * 1. config unmerged fifo thresholds, disable fifomerge
1291 * 2. wait until fifo changes are in HW
1294 use_fifomerge = false;
1296 /* Configure overlay fifos */
1297 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
1298 struct omap_dss_device *dssdev;
1301 ovl = omap_dss_get_overlay(i);
1303 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
1306 oc = &dss_cache.overlay_cache[ovl->id];
1311 dssdev = ovl->manager->device;
1313 size = dispc_get_plane_fifo_size(ovl->id);
1317 switch (dssdev->type) {
1318 case OMAP_DISPLAY_TYPE_DPI:
1319 case OMAP_DISPLAY_TYPE_DBI:
1320 case OMAP_DISPLAY_TYPE_SDI:
1321 case OMAP_DISPLAY_TYPE_VENC:
1322 default_get_overlay_fifo_thresholds(ovl->id, size,
1323 &oc->burst_size, &oc->fifo_low,
1326 #ifdef CONFIG_OMAP2_DSS_DSI
1327 case OMAP_DISPLAY_TYPE_DSI:
1328 dsi_get_overlay_fifo_thresholds(ovl->id, size,
1329 &oc->burst_size, &oc->fifo_low,
1339 dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
1340 if (!dss_cache.irq_enabled) {
1341 r = omap_dispc_register_isr(dss_apply_irq_handler, NULL,
1342 DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
1343 DISPC_IRQ_EVSYNC_EVEN);
1344 dss_cache.irq_enabled = true;
1347 dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
1349 spin_unlock_irqrestore(&dss_cache.lock, flags);
1354 static int dss_check_manager(struct omap_overlay_manager *mgr)
1356 /* OMAP supports only graphics source transparency color key and alpha
1357 * blending simultaneously. See TRM 15.4.2.4.2.2 Alpha Mode */
1359 if (mgr->info.alpha_enabled && mgr->info.trans_enabled &&
1360 mgr->info.trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST)
1366 static int omap_dss_mgr_set_info(struct omap_overlay_manager *mgr,
1367 struct omap_overlay_manager_info *info)
1370 struct omap_overlay_manager_info old_info;
1372 old_info = mgr->info;
1375 r = dss_check_manager(mgr);
1377 mgr->info = old_info;
1381 mgr->info_dirty = true;
1386 static void omap_dss_mgr_get_info(struct omap_overlay_manager *mgr,
1387 struct omap_overlay_manager_info *info)
1392 static int dss_mgr_enable(struct omap_overlay_manager *mgr)
1394 dispc_enable_channel(mgr->id, 1);
1398 static int dss_mgr_disable(struct omap_overlay_manager *mgr)
1400 dispc_enable_channel(mgr->id, 0);
1404 static void omap_dss_add_overlay_manager(struct omap_overlay_manager *manager)
1407 list_add_tail(&manager->list, &manager_list);
1410 int dss_init_overlay_managers(struct platform_device *pdev)
1414 spin_lock_init(&dss_cache.lock);
1416 INIT_LIST_HEAD(&manager_list);
1420 for (i = 0; i < 2; ++i) {
1421 struct omap_overlay_manager *mgr;
1422 mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1424 BUG_ON(mgr == NULL);
1429 mgr->id = OMAP_DSS_CHANNEL_LCD;
1430 mgr->supported_displays =
1431 OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
1432 OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI;
1436 mgr->id = OMAP_DSS_CHANNEL_DIGIT;
1437 mgr->supported_displays = OMAP_DISPLAY_TYPE_VENC;
1441 mgr->set_device = &omap_dss_set_device;
1442 mgr->unset_device = &omap_dss_unset_device;
1443 mgr->apply = &omap_dss_mgr_apply;
1444 mgr->set_manager_info = &omap_dss_mgr_set_info;
1445 mgr->get_manager_info = &omap_dss_mgr_get_info;
1446 mgr->wait_for_go = &dss_mgr_wait_for_go;
1447 mgr->wait_for_vsync = &dss_mgr_wait_for_vsync;
1449 mgr->enable = &dss_mgr_enable;
1450 mgr->disable = &dss_mgr_disable;
1452 mgr->caps = OMAP_DSS_OVL_MGR_CAP_DISPC;
1454 dss_overlay_setup_dispc_manager(mgr);
1456 omap_dss_add_overlay_manager(mgr);
1458 r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
1459 &pdev->dev.kobj, "manager%d", i);
1462 DSSERR("failed to create sysfs file\n");
1469 int omap_dss_mgr_apply_l4(struct omap_overlay_manager *mgr)
1471 DSSDBG("omap_dss_mgr_apply_l4(%s)\n", mgr->name);
1476 struct omap_overlay_manager *mgr;
1477 mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1479 BUG_ON(mgr == NULL);
1482 mgr->supported_displays =
1483 OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI;
1485 mgr->set_device = &omap_dss_set_device;
1486 mgr->unset_device = &omap_dss_unset_device;
1487 mgr->apply = &omap_dss_mgr_apply_l4;
1488 mgr->set_manager_info = &omap_dss_mgr_set_info;
1489 mgr->get_manager_info = &omap_dss_mgr_get_info;
1491 dss_overlay_setup_l4_manager(mgr);
1493 omap_dss_add_overlay_manager(mgr);
1495 r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
1496 &pdev->dev.kobj, "managerl4");
1499 DSSERR("failed to create sysfs file\n");
1506 void dss_uninit_overlay_managers(struct platform_device *pdev)
1508 struct omap_overlay_manager *mgr;
1510 while (!list_empty(&manager_list)) {
1511 mgr = list_first_entry(&manager_list,
1512 struct omap_overlay_manager, list);
1513 list_del(&mgr->list);
1514 kobject_del(&mgr->kobj);
1515 kobject_put(&mgr->kobj);
1522 int omap_dss_get_num_overlay_managers(void)
1524 return num_managers;
1526 EXPORT_SYMBOL(omap_dss_get_num_overlay_managers);
1528 struct omap_overlay_manager *omap_dss_get_overlay_manager(int num)
1531 struct omap_overlay_manager *mgr;
1533 list_for_each_entry(mgr, &manager_list, list) {
1540 EXPORT_SYMBOL(omap_dss_get_overlay_manager);