[PATCH 1/3] drm/i915: Add rotation property for sprites

sonika.jindal
2014-06-23T05:39:27Z

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Sprite planes support 180 degree rotation. The lower layers are now in
place, so hook in the standard rotation property to expose the feature
to the users.

v2: Moving rotation_property to drm_plane

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
---
drivers/gpu/drm/i915/intel_sprite.c | 42 ++++++++++++++++++++++++++++++++++-
include/drm/drm_crtc.h | 1 +
2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index cbad738..aa94f67 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -1202,6 +1202,30 @@ out_unlock:
return ret;
}

+static int intel_plane_set_property(struct drm_plane *plane,
+ struct drm_property *prop,
+ uint64_t val)
+{
+ struct drm_i915_private *dev_priv = plane->dev->dev_private;
+ struct intel_plane *intel_plane = to_intel_plane(plane);
+ uint64_t old_val;
+ int ret = -ENOENT;
+
+ if (prop == plane->rotation_property) {
+ /* exactly one rotation angle please */
+ if (hweight32(val & 0xf) != 1)
+ return -EINVAL;
+
+ old_val = intel_plane->rotation;
+ intel_plane->rotation = val;
+ ret = intel_plane_restore(plane);
+ if (ret)
+ intel_plane->rotation = old_val;
+ }
+
+ return ret;
+}
+
int intel_plane_restore(struct drm_plane *plane)
{
struct intel_plane *intel_plane = to_intel_plane(plane);
@@ -1228,6 +1252,7 @@ static const struct drm_plane_funcs intel_plane_funcs = {
.update_plane = intel_update_plane,
.disable_plane = intel_disable_plane,
.destroy = intel_destroy_plane,
+ .set_property = intel_plane_set_property,
};

static uint32_t ilk_plane_formats[] = {
@@ -1264,6 +1289,7 @@ static uint32_t vlv_plane_formats[] = {
int
intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
{
+ struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_plane *intel_plane;
unsigned long possible_crtcs;
const uint32_t *plane_formats;
@@ -1338,8 +1364,22 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
&intel_plane_funcs,
plane_formats, num_plane_formats,
false);
- if (ret)
+ if (ret) {
kfree(intel_plane);
+ goto out;
+ }
+
+ if (!intel_plane->base.rotation_property)
+ intel_plane->base.rotation_property =
+ drm_mode_create_rotation_property(dev,
+ BIT(DRM_ROTATE_0) |
+ BIT(DRM_ROTATE_180));
+
+ if (intel_plane->base.rotation_property)
+ drm_object_attach_property(&intel_plane->base.base,
+ intel_plane->base.rotation_property,
+ intel_plane->rotation);

+ out:
return ret;
}
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 08ed55e..6006c70 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -615,6 +615,7 @@ struct drm_plane {

const struct drm_plane_funcs *funcs;

+ struct drm_property *rotation_property;
struct drm_object_properties properties;

enum drm_plane_type type;
--
1.7.10.4

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