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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.c122
1 files changed, 90 insertions, 32 deletions
diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index c84380c53c39..ab8e40e48759 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -211,16 +211,17 @@ static ssize_t overlay_enabled_show(struct omap_overlay *ovl, char *buf)
static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf,
size_t size)
{
- int r, enable;
+ int r;
+ bool enable;
struct omap_overlay_info info;
ovl->get_overlay_info(ovl, &info);
- r = kstrtoint(buf, 0, &enable);
+ r = strtobool(buf, &enable);
if (r)
return r;
- info.enabled = !!enable;
+ info.enabled = enable;
r = ovl->set_overlay_info(ovl, &info);
if (r)
@@ -248,7 +249,7 @@ static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
u8 alpha;
struct omap_overlay_info info;
- if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
+ if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
return -ENODEV;
r = kstrtou8(buf, 0, &alpha);
@@ -257,14 +258,7 @@ static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
ovl->get_overlay_info(ovl, &info);
- /* Video1 plane does not support global alpha
- * to always make it 255 completely opaque
- */
- if (!dss_has_feature(FEAT_GLOBAL_ALPHA_VID1) &&
- ovl->id == OMAP_DSS_VIDEO1)
- info.global_alpha = 255;
- else
- info.global_alpha = alpha;
+ info.global_alpha = alpha;
r = ovl->set_overlay_info(ovl, &info);
if (r)
@@ -293,20 +287,52 @@ static ssize_t overlay_pre_mult_alpha_store(struct omap_overlay *ovl,
u8 alpha;
struct omap_overlay_info info;
+ if ((ovl->caps & OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA) == 0)
+ return -ENODEV;
+
r = kstrtou8(buf, 0, &alpha);
if (r)
return r;
ovl->get_overlay_info(ovl, &info);
- /* only GFX and Video2 plane support pre alpha multiplied
- * set zero for Video1 plane
- */
- if (!dss_has_feature(FEAT_GLOBAL_ALPHA_VID1) &&
- ovl->id == OMAP_DSS_VIDEO1)
- info.pre_mult_alpha = 0;
- else
- info.pre_mult_alpha = alpha;
+ info.pre_mult_alpha = alpha;
+
+ 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_zorder_show(struct omap_overlay *ovl, char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.zorder);
+}
+
+static ssize_t overlay_zorder_store(struct omap_overlay *ovl,
+ const char *buf, size_t size)
+{
+ int r;
+ u8 zorder;
+ struct omap_overlay_info info;
+
+ if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
+ return -ENODEV;
+
+ r = kstrtou8(buf, 0, &zorder);
+ if (r)
+ return r;
+
+ ovl->get_overlay_info(ovl, &info);
+
+ info.zorder = zorder;
r = ovl->set_overlay_info(ovl, &info);
if (r)
@@ -347,6 +373,8 @@ static OVERLAY_ATTR(global_alpha, S_IRUGO|S_IWUSR,
static OVERLAY_ATTR(pre_mult_alpha, S_IRUGO|S_IWUSR,
overlay_pre_mult_alpha_show,
overlay_pre_mult_alpha_store);
+static OVERLAY_ATTR(zorder, S_IRUGO|S_IWUSR,
+ overlay_zorder_show, overlay_zorder_store);
static struct attribute *overlay_sysfs_attrs[] = {
&overlay_attr_name.attr,
@@ -358,6 +386,7 @@ static struct attribute *overlay_sysfs_attrs[] = {
&overlay_attr_enabled.attr,
&overlay_attr_global_alpha.attr,
&overlay_attr_pre_mult_alpha.attr,
+ &overlay_attr_zorder.attr,
NULL
};
@@ -407,6 +436,7 @@ 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;
@@ -462,6 +492,31 @@ int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev)
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;
}
@@ -516,6 +571,7 @@ static int omap_dss_set_manager(struct omap_overlay *ovl,
}
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
@@ -529,15 +585,12 @@ static int omap_dss_set_manager(struct omap_overlay *ovl,
* Userspace workaround for this is to update the LCD after disabling
* the overlay, but before moving the overlay to TV.
*/
- dispc_set_channel_out(ovl->id, mgr->id);
return 0;
}
static int omap_dss_unset_manager(struct omap_overlay *ovl)
{
- int r;
-
if (!ovl->manager) {
DSSERR("failed to detach overlay: manager not set\n");
return -EINVAL;
@@ -548,11 +601,8 @@ static int omap_dss_unset_manager(struct omap_overlay *ovl)
return -EINVAL;
}
- r = ovl->wait_for_go(ovl);
- if (r)
- return r;
-
ovl->manager = NULL;
+ ovl->manager_changed = true;
return 0;
}
@@ -618,22 +668,29 @@ void dss_init_overlays(struct platform_device *pdev)
case 0:
ovl->name = "gfx";
ovl->id = OMAP_DSS_GFX;
- ovl->caps = OMAP_DSS_OVL_CAP_DISPC;
ovl->info.global_alpha = 255;
+ ovl->info.zorder = 0;
break;
case 1:
ovl->name = "vid1";
ovl->id = OMAP_DSS_VIDEO1;
- ovl->caps = OMAP_DSS_OVL_CAP_SCALE |
- OMAP_DSS_OVL_CAP_DISPC;
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->caps = OMAP_DSS_OVL_CAP_SCALE |
- OMAP_DSS_OVL_CAP_DISPC;
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;
}
@@ -643,6 +700,7 @@ void dss_init_overlays(struct platform_device *pdev)
ovl->get_overlay_info = &dss_ovl_get_overlay_info;
ovl->wait_for_go = &dss_ovl_wait_for_go;
+ ovl->caps = dss_feat_get_overlay_caps(ovl->id);
ovl->supported_modes =
dss_feat_get_supported_color_modes(ovl->id);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.