2 * rcar_du_plane.h -- R-Car Display Unit Planes
4 * Copyright (C) 2013-2014 Renesas Electronics Corporation
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
14 #ifndef __RCAR_DU_PLANE_H__
15 #define __RCAR_DU_PLANE_H__
18 #include <drm/drm_crtc.h>
20 struct rcar_du_format_info;
23 /* The RCAR DU has 8 hardware planes, shared between primary and overlay planes.
24 * As using overlay planes requires at least one of the CRTCs being enabled, no
25 * more than 7 overlay planes can be available. We thus create 1 primary plane
26 * per CRTC and 7 overlay planes, for a total of up to 9 KMS planes.
28 #define RCAR_DU_NUM_KMS_PLANES 9
29 #define RCAR_DU_NUM_HW_PLANES 8
31 enum rcar_du_plane_source {
37 struct rcar_du_plane {
38 struct drm_plane plane;
39 struct rcar_du_group *group;
42 static inline struct rcar_du_plane *to_rcar_plane(struct drm_plane *plane)
44 return container_of(plane, struct rcar_du_plane, plane);
48 * struct rcar_du_plane_state - Driver-specific plane state
49 * @state: base DRM plane state
50 * @format: information about the pixel format used by the plane
51 * @hwindex: 0-based hardware plane index, -1 means unused
52 * @alpha: value of the plane alpha property
53 * @colorkey: value of the plane colorkey property
55 struct rcar_du_plane_state {
56 struct drm_plane_state state;
58 const struct rcar_du_format_info *format;
60 enum rcar_du_plane_source source;
63 unsigned int colorkey;
66 static inline struct rcar_du_plane_state *
67 to_rcar_plane_state(struct drm_plane_state *state)
69 return container_of(state, struct rcar_du_plane_state, state);
72 int rcar_du_atomic_check_planes(struct drm_device *dev,
73 struct drm_atomic_state *state);
75 int rcar_du_planes_init(struct rcar_du_group *rgrp);
77 void __rcar_du_plane_setup(struct rcar_du_group *rgrp,
78 const struct rcar_du_plane_state *state);
80 static inline void rcar_du_plane_setup(struct rcar_du_plane *plane)
82 struct rcar_du_plane_state *state =
83 to_rcar_plane_state(plane->plane.state);
85 return __rcar_du_plane_setup(plane->group, state);
88 #endif /* __RCAR_DU_PLANE_H__ */