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path: root/drivers/gpu/drm/exynos/exynos_drm_crtc.h
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Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_crtc.h')
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_crtc.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.h b/drivers/gpu/drm/exynos/exynos_drm_crtc.h
index c584042d6d2c..25f72a62cb88 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.h
@@ -35,4 +35,29 @@ int exynos_drm_crtc_create(struct drm_device *dev, unsigned int nr);
int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int crtc);
void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int crtc);
+/*
+ * Exynos specific crtc postion structure.
+ *
+ * @fb_x: offset x on a framebuffer to be displyed
+ * - the unit is screen coordinates.
+ * @fb_y: offset y on a framebuffer to be displayed
+ * - the unit is screen coordinates.
+ * @crtc_x: offset x on hardware screen.
+ * @crtc_y: offset y on hardware screen.
+ * @crtc_w: width of hardware screen.
+ * @crtc_h: height of hardware screen.
+ */
+struct exynos_drm_crtc_pos {
+ unsigned int fb_x;
+ unsigned int fb_y;
+ unsigned int crtc_x;
+ unsigned int crtc_y;
+ unsigned int crtc_w;
+ unsigned int crtc_h;
+};
+
+int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay,
+ struct drm_framebuffer *fb,
+ struct drm_display_mode *mode,
+ struct exynos_drm_crtc_pos *pos);
#endif