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1/* SPDX-License-Identifier: GPL-2.0+ */2/*3 * R-Car Display Unit Planes4 *5 * Copyright (C) 2013-2014 Renesas Electronics Corporation6 *7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)8 */9 10#ifndef __RCAR_DU_PLANE_H__11#define __RCAR_DU_PLANE_H__12 13#include <drm/drm_plane.h>14 15struct rcar_du_format_info;16struct rcar_du_group;17 18/*19 * The RCAR DU has 8 hardware planes, shared between primary and overlay planes.20 * As using overlay planes requires at least one of the CRTCs being enabled, no21 * more than 7 overlay planes can be available. We thus create 1 primary plane22 * per CRTC and 7 overlay planes, for a total of up to 9 KMS planes.23 */24#define RCAR_DU_NUM_KMS_PLANES 925#define RCAR_DU_NUM_HW_PLANES 826 27enum rcar_du_plane_source {28 RCAR_DU_PLANE_MEMORY,29 RCAR_DU_PLANE_VSPD0,30 RCAR_DU_PLANE_VSPD1,31};32 33struct rcar_du_plane {34 struct drm_plane plane;35 struct rcar_du_group *group;36};37 38static inline struct rcar_du_plane *to_rcar_plane(struct drm_plane *plane)39{40 return container_of(plane, struct rcar_du_plane, plane);41}42 43/**44 * struct rcar_du_plane_state - Driver-specific plane state45 * @state: base DRM plane state46 * @format: information about the pixel format used by the plane47 * @hwindex: 0-based hardware plane index, -1 means unused48 * @colorkey: value of the plane colorkey property49 */50struct rcar_du_plane_state {51 struct drm_plane_state state;52 53 const struct rcar_du_format_info *format;54 int hwindex;55 enum rcar_du_plane_source source;56 57 unsigned int colorkey;58};59 60static inline struct rcar_du_plane_state *61to_rcar_plane_state(struct drm_plane_state *state)62{63 return container_of(state, struct rcar_du_plane_state, state);64}65 66int rcar_du_atomic_check_planes(struct drm_device *dev,67 struct drm_atomic_state *state);68 69int __rcar_du_plane_atomic_check(struct drm_plane *plane,70 struct drm_plane_state *state,71 const struct rcar_du_format_info **format);72 73int rcar_du_planes_init(struct rcar_du_group *rgrp);74 75void __rcar_du_plane_setup(struct rcar_du_group *rgrp,76 const struct rcar_du_plane_state *state);77 78static inline void rcar_du_plane_setup(struct rcar_du_plane *plane)79{80 struct rcar_du_plane_state *state =81 to_rcar_plane_state(plane->plane.state);82 83 return __rcar_du_plane_setup(plane->group, state);84}85 86#endif /* __RCAR_DU_PLANE_H__ */87