@@ -268,6 +268,7 @@ struct omap_overlay_info {
u16 out_width; /* if 0, out_width == width */
u16 out_height; /* if 0, out_height == height */
u8 global_alpha;
+ u8 pre_mult_alpha;
};
struct omap_overlay {
@@ -773,6 +773,17 @@ static void _dispc_set_vid_size(enum omap_plane plane, int width, int height)
dispc_write_reg(vsi_reg[plane-1], val);
}
+static void _dispc_set_pre_mult_alpha(enum omap_plane plane, bool enable)
+{
+ if (!dss_has_feature(FEAT_PREMUL_ALPHA))
+ return;
+
+ BUG_ON(!dss_has_feature(FEAT_GLOBAL_ALPHA_VID1) &&
+ plane == OMAP_DSS_VIDEO1);
+
+ REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 28, 28);
+}
+
static void _dispc_setup_global_alpha(enum omap_plane plane, u8 global_alpha)
{
if (!dss_has_feature(FEAT_GLOBAL_ALPHA))
@@ -1507,7 +1518,8 @@ static int _dispc_setup_plane(enum omap_plane plane,
bool ilace,
enum omap_dss_rotation_type rotation_type,
u8 rotation, int mirror,
- u8 global_alpha)
+ u8 global_alpha,
+ u8 pre_mult_alpha)
{
const int maxdownscale = cpu_is_omap34xx() ? 4 : 2;
bool five_taps = 0;
@@ -1693,8 +1705,11 @@ static int _dispc_setup_plane(enum omap_plane plane,
_dispc_set_rotation_attrs(plane, rotation, mirror, color_mode);
- if (plane != OMAP_DSS_VIDEO1)
+ if ((plane != OMAP_DSS_VIDEO1) ||
+ dss_has_feature(FEAT_GLOBAL_ALPHA_VID1)) {
+ _dispc_set_pre_mult_alpha(plane, pre_mult_alpha);
_dispc_setup_global_alpha(plane, global_alpha);
+ }
return 0;
}
@@ -3139,7 +3154,8 @@ int dispc_setup_plane(enum omap_plane plane,
enum omap_color_mode color_mode,
bool ilace,
enum omap_dss_rotation_type rotation_type,
- u8 rotation, bool mirror, u8 global_alpha)
+ u8 rotation, bool mirror, u8 global_alpha,
+ u8 pre_mult_alpha)
{
int r = 0;
@@ -3161,7 +3177,8 @@ int dispc_setup_plane(enum omap_plane plane,
color_mode, ilace,
rotation_type,
rotation, mirror,
- global_alpha);
+ global_alpha,
+ pre_mult_alpha);
enable_clocks(0);
@@ -359,7 +359,8 @@ int dispc_setup_plane(enum omap_plane plane,
bool ilace,
enum omap_dss_rotation_type rotation_type,
u8 rotation, bool mirror,
- u8 global_alpha);
+ u8 global_alpha,
+ u8 pre_mult_alpha);
bool dispc_go_busy(enum omap_channel channel);
void dispc_go(enum omap_channel channel);
@@ -134,7 +134,7 @@ static struct omap_dss_features omap2_dss_features = {
};
/* OMAP3 DSS Features */
-static struct omap_dss_features omap3_dss_features = {
+static struct omap_dss_features omap3430_dss_features = {
.reg_fields = omap3_dss_reg_fields,
.num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields),
@@ -146,6 +146,18 @@ static struct omap_dss_features omap3_dss_features = {
.supported_color_modes = omap3_dss_supported_color_modes,
};
+static struct omap_dss_features omap3630_dss_features = {
+ .reg_fields = omap3_dss_reg_fields,
+ .num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields),
+
+ .has_feature = FEAT_GLOBAL_ALPHA | FEAT_PREMUL_ALPHA,
+
+ .num_mgrs = 2,
+ .num_ovls = 3,
+ .supported_displays = omap3_dss_supported_displays,
+ .supported_color_modes = omap3_dss_supported_color_modes,
+};
+
/* Functions returning values related to a DSS feature */
int dss_feat_get_num_mgrs(void)
{
@@ -186,6 +198,8 @@ void dss_features_init(void)
{
if (cpu_is_omap24xx())
omap_current_dss_features = &omap2_dss_features;
- else
- omap_current_dss_features = &omap3_dss_features;
+ else if (cpu_is_omap3630())
+ omap_current_dss_features = &omap3630_dss_features;
+ else if (cpu_is_omap34xx())
+ omap_current_dss_features = &omap3430_dss_features;
}
@@ -27,6 +27,7 @@
enum dss_feat_id {
FEAT_GLOBAL_ALPHA = 1 << 0,
FEAT_GLOBAL_ALPHA_VID1 = 1 << 1,
+ FEAT_PREMUL_ALPHA = 1 << 2,
};
/* DSS register field id */
@@ -406,6 +406,7 @@ struct overlay_cache_data {
u16 out_width; /* if 0, out_width == width */
u16 out_height; /* if 0, out_height == height */
u8 global_alpha;
+ u8 pre_mult_alpha;
enum omap_channel channel;
bool replication;
@@ -842,7 +843,8 @@ static int configure_overlay(enum omap_plane plane)
c->rotation_type,
c->rotation,
c->mirror,
- c->global_alpha);
+ c->global_alpha,
+ c->pre_mult_alpha);
if (r) {
/* this shouldn't happen */
@@ -1265,6 +1267,7 @@ static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
oc->out_width = ovl->info.out_width;
oc->out_height = ovl->info.out_height;
oc->global_alpha = ovl->info.global_alpha;
+ oc->pre_mult_alpha = ovl->info.pre_mult_alpha;
oc->replication =
dss_use_replication(dssdev, ovl->info.color_mode);
@@ -257,6 +257,37 @@ static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
return size;
}
+static ssize_t overlay_pre_multiplication_alpha_show(struct omap_overlay *ovl,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ ovl->info.pre_mult_alpha);
+}
+
+static ssize_t overlay_pre_multiplication_alpha_store(struct omap_overlay *ovl,
+ const char *buf, size_t size)
+{
+ int r;
+ struct omap_overlay_info info;
+
+ ovl->get_overlay_info(ovl, &info);
+
+ /* only GFX and Video2 plane support pre alpha multiplication */
+ info.pre_mult_alpha = simple_strtoul(buf, NULL, 10);
+
+ 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;
+}
+
struct overlay_attribute {
struct attribute attr;
ssize_t (*show)(struct omap_overlay *, char *);
@@ -280,6 +311,9 @@ static OVERLAY_ATTR(enabled, S_IRUGO|S_IWUSR,
overlay_enabled_show, overlay_enabled_store);
static OVERLAY_ATTR(global_alpha, S_IRUGO|S_IWUSR,
overlay_global_alpha_show, overlay_global_alpha_store);
+static OVERLAY_ATTR(pre_multiplication_alpha, S_IRUGO|S_IWUSR,
+ overlay_pre_multiplication_alpha_show,
+ overlay_pre_multiplication_alpha_store);
static struct attribute *overlay_sysfs_attrs[] = {
&overlay_attr_name.attr,
@@ -290,6 +324,7 @@ static struct attribute *overlay_sysfs_attrs[] = {
&overlay_attr_output_size.attr,
&overlay_attr_enabled.attr,
&overlay_attr_global_alpha.attr,
+ &overlay_attr_pre_multiplication_alpha.attr,
NULL
};