/* SPDX-License-Identifier: GPL-2.0+ */ /* * rcar_du_plane.h -- R-Car Display Unit Planes * * Copyright (C) 2013-2014 Renesas Electronics Corporation * * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) */ #ifndef __RCAR_DU_PLANE_H__ #define __RCAR_DU_PLANE_H__ #include <drm/drmP.h> #include <drm/drm_crtc.h> struct rcar_du_format_info; struct rcar_du_group; /* * The RCAR DU has 8 hardware planes, shared between primary and overlay planes. * As using overlay planes requires at least one of the CRTCs being enabled, no * more than 7 overlay planes can be available. We thus create 1 primary plane * per CRTC and 7 overlay planes, for a total of up to 9 KMS planes. */ #define RCAR_DU_NUM_KMS_PLANES 9 #define RCAR_DU_NUM_HW_PLANES 8 enum rcar_du_plane_source { RCAR_DU_PLANE_MEMORY, RCAR_DU_PLANE_VSPD0, RCAR_DU_PLANE_VSPD1, }; struct rcar_du_plane { struct drm_plane plane; struct rcar_du_group *group; }; static inline struct rcar_du_plane *to_rcar_plane(struct drm_plane *plane) { return container_of(plane, struct rcar_du_plane, plane); } /** * struct rcar_du_plane_state - Driver-specific plane state * @state: base DRM plane state * @format: information about the pixel format used by the plane * @hwindex: 0-based hardware plane index, -1 means unused * @colorkey: value of the plane colorkey property */ struct rcar_du_plane_state { struct drm_plane_state state; const struct rcar_du_format_info *format; int hwindex; enum rcar_du_plane_source source; unsigned int colorkey; }; static inline struct rcar_du_plane_state * to_rcar_plane_state(struct drm_plane_state *state) { return container_of(state, struct rcar_du_plane_state, state); } int rcar_du_atomic_check_planes(struct drm_device *dev, struct drm_atomic_state *state); int __rcar_du_plane_atomic_check(struct drm_plane *plane, struct drm_plane_state *state, const struct rcar_du_format_info **format); int rcar_du_planes_init(struct rcar_du_group *rgrp); void __rcar_du_plane_setup(struct rcar_du_group *rgrp, const struct rcar_du_plane_state *state); static inline void rcar_du_plane_setup(struct rcar_du_plane *plane) { struct rcar_du_plane_state *state = to_rcar_plane_state(plane->plane.state); return __rcar_du_plane_setup(plane->group, state); } #endif /* __RCAR_DU_PLANE_H__ */