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path: root/drivers/video/omap2/dss/overlay.c
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Diffstat (limited to 'drivers/video/omap2/dss/overlay.c')
-rw-r--r--drivers/video/omap2/dss/overlay.c435
1 files changed, 144 insertions, 291 deletions
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index ab8e40e48759..6e821810deec 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -38,7 +38,7 @@
#include "dss_features.h"
static int num_overlays;
-static struct list_head overlay_list;
+static struct omap_overlay *overlays;
static ssize_t overlay_name_show(struct omap_overlay *ovl, char *buf)
{
@@ -124,19 +124,31 @@ err:
static ssize_t overlay_input_size_show(struct omap_overlay *ovl, char *buf)
{
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+
return snprintf(buf, PAGE_SIZE, "%d,%d\n",
- ovl->info.width, ovl->info.height);
+ info.width, info.height);
}
static ssize_t overlay_screen_width_show(struct omap_overlay *ovl, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.screen_width);
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", info.screen_width);
}
static ssize_t overlay_position_show(struct omap_overlay *ovl, char *buf)
{
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+
return snprintf(buf, PAGE_SIZE, "%d,%d\n",
- ovl->info.pos_x, ovl->info.pos_y);
+ info.pos_x, info.pos_y);
}
static ssize_t overlay_position_store(struct omap_overlay *ovl,
@@ -170,8 +182,12 @@ static ssize_t overlay_position_store(struct omap_overlay *ovl,
static ssize_t overlay_output_size_show(struct omap_overlay *ovl, char *buf)
{
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+
return snprintf(buf, PAGE_SIZE, "%d,%d\n",
- ovl->info.out_width, ovl->info.out_height);
+ info.out_width, info.out_height);
}
static ssize_t overlay_output_size_store(struct omap_overlay *ovl,
@@ -205,7 +221,7 @@ static ssize_t overlay_output_size_store(struct omap_overlay *ovl,
static ssize_t overlay_enabled_show(struct omap_overlay *ovl, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.enabled);
+ return snprintf(buf, PAGE_SIZE, "%d\n", ovl->is_enabled(ovl));
}
static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf,
@@ -213,33 +229,30 @@ static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf,
{
int r;
bool enable;
- struct omap_overlay_info info;
-
- ovl->get_overlay_info(ovl, &info);
r = strtobool(buf, &enable);
if (r)
return r;
- info.enabled = enable;
+ if (enable)
+ r = ovl->enable(ovl);
+ else
+ r = ovl->disable(ovl);
- r = ovl->set_overlay_info(ovl, &info);
if (r)
return r;
- if (ovl->manager) {
- r = ovl->manager->apply(ovl->manager);
- if (r)
- return r;
- }
-
return size;
}
static ssize_t overlay_global_alpha_show(struct omap_overlay *ovl, char *buf)
{
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+
return snprintf(buf, PAGE_SIZE, "%d\n",
- ovl->info.global_alpha);
+ info.global_alpha);
}
static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
@@ -276,8 +289,12 @@ static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
static ssize_t overlay_pre_mult_alpha_show(struct omap_overlay *ovl,
char *buf)
{
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+
return snprintf(buf, PAGE_SIZE, "%d\n",
- ovl->info.pre_mult_alpha);
+ info.pre_mult_alpha);
}
static ssize_t overlay_pre_mult_alpha_store(struct omap_overlay *ovl,
@@ -313,7 +330,11 @@ static ssize_t overlay_pre_mult_alpha_store(struct omap_overlay *ovl,
static ssize_t overlay_zorder_show(struct omap_overlay *ovl, char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.zorder);
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", info.zorder);
}
static ssize_t overlay_zorder_store(struct omap_overlay *ovl,
@@ -430,183 +451,6 @@ static struct kobj_type overlay_ktype = {
.default_attrs = overlay_sysfs_attrs,
};
-/* Check if overlay parameters are compatible with display */
-int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev)
-{
- struct omap_overlay_info *info;
- u16 outw, outh;
- u16 dw, dh;
- int i;
-
- if (!dssdev)
- return 0;
-
- if (!ovl->info.enabled)
- return 0;
-
- info = &ovl->info;
-
- if (info->paddr == 0) {
- DSSDBG("check_overlay failed: paddr 0\n");
- return -EINVAL;
- }
-
- dssdev->driver->get_resolution(dssdev, &dw, &dh);
-
- DSSDBG("check_overlay %d: (%d,%d %dx%d -> %dx%d) disp (%dx%d)\n",
- ovl->id,
- info->pos_x, info->pos_y,
- info->width, info->height,
- info->out_width, info->out_height,
- dw, dh);
-
- if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
- outw = info->width;
- outh = info->height;
- } else {
- if (info->out_width == 0)
- outw = info->width;
- else
- outw = info->out_width;
-
- if (info->out_height == 0)
- outh = info->height;
- else
- outh = info->out_height;
- }
-
- if (dw < info->pos_x + outw) {
- DSSDBG("check_overlay failed 1: %d < %d + %d\n",
- dw, info->pos_x, outw);
- return -EINVAL;
- }
-
- if (dh < info->pos_y + outh) {
- DSSDBG("check_overlay failed 2: %d < %d + %d\n",
- dh, info->pos_y, outh);
- return -EINVAL;
- }
-
- if ((ovl->supported_modes & info->color_mode) == 0) {
- DSSERR("overlay doesn't support mode %d\n", info->color_mode);
- return -EINVAL;
- }
-
- if (ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) {
- if (info->zorder < 0 || info->zorder > 3) {
- DSSERR("zorder out of range: %d\n",
- info->zorder);
- return -EINVAL;
- }
- /*
- * Check that zorder doesn't match with zorder of any other
- * overlay which is enabled and is also connected to the same
- * manager
- */
- for (i = 0; i < omap_dss_get_num_overlays(); i++) {
- struct omap_overlay *tmp_ovl = omap_dss_get_overlay(i);
-
- if (tmp_ovl->id != ovl->id &&
- tmp_ovl->manager == ovl->manager &&
- tmp_ovl->info.enabled == true &&
- tmp_ovl->info.zorder == info->zorder) {
- DSSERR("%s and %s have same zorder: %d\n",
- ovl->name, tmp_ovl->name, info->zorder);
- return -EINVAL;
- }
- }
- }
-
- return 0;
-}
-
-static int dss_ovl_set_overlay_info(struct omap_overlay *ovl,
- struct omap_overlay_info *info)
-{
- int r;
- struct omap_overlay_info old_info;
-
- old_info = ovl->info;
- ovl->info = *info;
-
- if (ovl->manager) {
- r = dss_check_overlay(ovl, ovl->manager->device);
- if (r) {
- ovl->info = old_info;
- return r;
- }
- }
-
- ovl->info_dirty = true;
-
- return 0;
-}
-
-static void dss_ovl_get_overlay_info(struct omap_overlay *ovl,
- struct omap_overlay_info *info)
-{
- *info = ovl->info;
-}
-
-static int dss_ovl_wait_for_go(struct omap_overlay *ovl)
-{
- return dss_mgr_wait_for_go_ovl(ovl);
-}
-
-static int omap_dss_set_manager(struct omap_overlay *ovl,
- struct omap_overlay_manager *mgr)
-{
- if (!mgr)
- return -EINVAL;
-
- if (ovl->manager) {
- DSSERR("overlay '%s' already has a manager '%s'\n",
- ovl->name, ovl->manager->name);
- return -EINVAL;
- }
-
- if (ovl->info.enabled) {
- DSSERR("overlay has to be disabled to change the manager\n");
- return -EINVAL;
- }
-
- ovl->manager = mgr;
- ovl->manager_changed = true;
-
- /* XXX: When there is an overlay on a DSI manual update display, and
- * the overlay is first disabled, then moved to tv, and enabled, we
- * seem to get SYNC_LOST_DIGIT error.
- *
- * Waiting doesn't seem to help, but updating the manual update display
- * after disabling the overlay seems to fix this. This hints that the
- * overlay is perhaps somehow tied to the LCD output until the output
- * is updated.
- *
- * Userspace workaround for this is to update the LCD after disabling
- * the overlay, but before moving the overlay to TV.
- */
-
- return 0;
-}
-
-static int omap_dss_unset_manager(struct omap_overlay *ovl)
-{
- if (!ovl->manager) {
- DSSERR("failed to detach overlay: manager not set\n");
- return -EINVAL;
- }
-
- if (ovl->info.enabled) {
- DSSERR("overlay has to be disabled to unset the manager\n");
- return -EINVAL;
- }
-
- ovl->manager = NULL;
- ovl->manager_changed = true;
-
- return 0;
-}
-
int omap_dss_get_num_overlays(void)
{
return num_overlays;
@@ -615,134 +459,65 @@ EXPORT_SYMBOL(omap_dss_get_num_overlays);
struct omap_overlay *omap_dss_get_overlay(int num)
{
- int i = 0;
- struct omap_overlay *ovl;
+ if (num >= num_overlays)
+ return NULL;
- list_for_each_entry(ovl, &overlay_list, list) {
- if (i++ == num)
- return ovl;
- }
-
- return NULL;
+ return &overlays[num];
}
EXPORT_SYMBOL(omap_dss_get_overlay);
-static void omap_dss_add_overlay(struct omap_overlay *overlay)
-{
- ++num_overlays;
- list_add_tail(&overlay->list, &overlay_list);
-}
-
-static struct omap_overlay *dispc_overlays[MAX_DSS_OVERLAYS];
-
-void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr)
-{
- mgr->num_overlays = dss_feat_get_num_ovls();
- mgr->overlays = dispc_overlays;
-}
-
-#ifdef L4_EXAMPLE
-static struct omap_overlay *l4_overlays[1];
-void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr)
-{
- mgr->num_overlays = 1;
- mgr->overlays = l4_overlays;
-}
-#endif
-
void dss_init_overlays(struct platform_device *pdev)
{
int i, r;
- INIT_LIST_HEAD(&overlay_list);
+ num_overlays = dss_feat_get_num_ovls();
- num_overlays = 0;
+ overlays = kzalloc(sizeof(struct omap_overlay) * num_overlays,
+ GFP_KERNEL);
- for (i = 0; i < dss_feat_get_num_ovls(); ++i) {
- struct omap_overlay *ovl;
- ovl = kzalloc(sizeof(*ovl), GFP_KERNEL);
+ BUG_ON(overlays == NULL);
- BUG_ON(ovl == NULL);
+ for (i = 0; i < num_overlays; ++i) {
+ struct omap_overlay *ovl = &overlays[i];
switch (i) {
case 0:
ovl->name = "gfx";
ovl->id = OMAP_DSS_GFX;
- ovl->info.global_alpha = 255;
- ovl->info.zorder = 0;
break;
case 1:
ovl->name = "vid1";
ovl->id = OMAP_DSS_VIDEO1;
- ovl->info.global_alpha = 255;
- ovl->info.zorder =
- dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 3 : 0;
break;
case 2:
ovl->name = "vid2";
ovl->id = OMAP_DSS_VIDEO2;
- ovl->info.global_alpha = 255;
- ovl->info.zorder =
- dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 2 : 0;
break;
case 3:
ovl->name = "vid3";
ovl->id = OMAP_DSS_VIDEO3;
- ovl->info.global_alpha = 255;
- ovl->info.zorder =
- dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 1 : 0;
break;
}
- ovl->set_manager = &omap_dss_set_manager;
- ovl->unset_manager = &omap_dss_unset_manager;
- ovl->set_overlay_info = &dss_ovl_set_overlay_info;
- ovl->get_overlay_info = &dss_ovl_get_overlay_info;
- ovl->wait_for_go = &dss_ovl_wait_for_go;
+ ovl->is_enabled = &dss_ovl_is_enabled;
+ ovl->enable = &dss_ovl_enable;
+ ovl->disable = &dss_ovl_disable;
+ ovl->set_manager = &dss_ovl_set_manager;
+ ovl->unset_manager = &dss_ovl_unset_manager;
+ ovl->set_overlay_info = &dss_ovl_set_info;
+ ovl->get_overlay_info = &dss_ovl_get_info;
+ ovl->wait_for_go = &dss_mgr_wait_for_go_ovl;
ovl->caps = dss_feat_get_overlay_caps(ovl->id);
ovl->supported_modes =
dss_feat_get_supported_color_modes(ovl->id);
- omap_dss_add_overlay(ovl);
-
r = kobject_init_and_add(&ovl->kobj, &overlay_ktype,
&pdev->dev.kobj, "overlay%d", i);
- if (r) {
- DSSERR("failed to create sysfs file\n");
- continue;
- }
-
- dispc_overlays[i] = ovl;
- }
-
-#ifdef L4_EXAMPLE
- {
- struct omap_overlay *ovl;
- ovl = kzalloc(sizeof(*ovl), GFP_KERNEL);
-
- BUG_ON(ovl == NULL);
-
- ovl->name = "l4";
- ovl->supported_modes = OMAP_DSS_COLOR_RGB24U;
-
- ovl->set_manager = &omap_dss_set_manager;
- ovl->unset_manager = &omap_dss_unset_manager;
- ovl->set_overlay_info = &dss_ovl_set_overlay_info;
- ovl->get_overlay_info = &dss_ovl_get_overlay_info;
-
- omap_dss_add_overlay(ovl);
-
- r = kobject_init_and_add(&ovl->kobj, &overlay_ktype,
- &pdev->dev.kobj, "overlayl4");
-
if (r)
DSSERR("failed to create sysfs file\n");
-
- l4_overlays[0] = ovl;
}
-#endif
}
/* connect overlays to the new device, if not already connected. if force
@@ -795,8 +570,8 @@ void dss_recheck_connections(struct omap_dss_device *dssdev, bool force)
ovl = omap_dss_get_overlay(i);
if (!ovl->manager || force) {
if (ovl->manager)
- omap_dss_unset_manager(ovl);
- omap_dss_set_manager(ovl, mgr);
+ ovl->unset_manager(ovl);
+ ovl->set_manager(ovl, mgr);
}
}
@@ -806,17 +581,95 @@ void dss_recheck_connections(struct omap_dss_device *dssdev, bool force)
void dss_uninit_overlays(struct platform_device *pdev)
{
- struct omap_overlay *ovl;
+ int i;
+
+ for (i = 0; i < num_overlays; ++i) {
+ struct omap_overlay *ovl = &overlays[i];
- while (!list_empty(&overlay_list)) {
- ovl = list_first_entry(&overlay_list,
- struct omap_overlay, list);
- list_del(&ovl->list);
kobject_del(&ovl->kobj);
kobject_put(&ovl->kobj);
- kfree(ovl);
}
+ kfree(overlays);
+ overlays = NULL;
num_overlays = 0;
}
+int dss_ovl_simple_check(struct omap_overlay *ovl,
+ const struct omap_overlay_info *info)
+{
+ if (info->paddr == 0) {
+ DSSERR("check_overlay: paddr cannot be 0\n");
+ return -EINVAL;
+ }
+
+ if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
+ if (info->out_width != 0 && info->width != info->out_width) {
+ DSSERR("check_overlay: overlay %d doesn't support "
+ "scaling\n", ovl->id);
+ return -EINVAL;
+ }
+
+ if (info->out_height != 0 && info->height != info->out_height) {
+ DSSERR("check_overlay: overlay %d doesn't support "
+ "scaling\n", ovl->id);
+ return -EINVAL;
+ }
+ }
+
+ if ((ovl->supported_modes & info->color_mode) == 0) {
+ DSSERR("check_overlay: overlay %d doesn't support mode %d\n",
+ ovl->id, info->color_mode);
+ return -EINVAL;
+ }
+
+ if (info->zorder >= omap_dss_get_num_overlays()) {
+ DSSERR("check_overlay: zorder %d too high\n", info->zorder);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int dss_ovl_check(struct omap_overlay *ovl,
+ struct omap_overlay_info *info, struct omap_dss_device *dssdev)
+{
+ u16 outw, outh;
+ u16 dw, dh;
+
+ if (dssdev == NULL)
+ return 0;
+
+ dssdev->driver->get_resolution(dssdev, &dw, &dh);
+
+ if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
+ outw = info->width;
+ outh = info->height;
+ } else {
+ if (info->out_width == 0)
+ outw = info->width;
+ else
+ outw = info->out_width;
+
+ if (info->out_height == 0)
+ outh = info->height;
+ else
+ outh = info->out_height;
+ }
+
+ if (dw < info->pos_x + outw) {
+ DSSERR("overlay %d horizontally not inside the display area "
+ "(%d + %d >= %d)\n",
+ ovl->id, info->pos_x, outw, dw);
+ return -EINVAL;
+ }
+
+ if (dh < info->pos_y + outh) {
+ DSSERR("overlay %d vertically not inside the display area "
+ "(%d + %d >= %d)\n",
+ ovl->id, info->pos_y, outh, dh);
+ return -EINVAL;
+ }
+
+ return 0;
+}