91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/*
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* rcar_du_plane.h -- R-Car Display Unit Planes
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*
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* Copyright (C) 2013-2014 Renesas Electronics Corporation
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*
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* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __RCAR_DU_PLANE_H__
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#define __RCAR_DU_PLANE_H__
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#include <drm/drmP.h>
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#include <drm/drm_crtc.h>
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struct rcar_du_format_info;
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struct rcar_du_group;
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/* The RCAR DU has 8 hardware planes, shared between primary and overlay planes.
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* As using overlay planes requires at least one of the CRTCs being enabled, no
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* more than 7 overlay planes can be available. We thus create 1 primary plane
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* per CRTC and 7 overlay planes, for a total of up to 9 KMS planes.
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*/
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#define RCAR_DU_NUM_KMS_PLANES 9
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#define RCAR_DU_NUM_HW_PLANES 8
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enum rcar_du_plane_source {
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RCAR_DU_PLANE_MEMORY,
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RCAR_DU_PLANE_VSPD0,
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RCAR_DU_PLANE_VSPD1,
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};
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struct rcar_du_plane {
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struct drm_plane plane;
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struct rcar_du_group *group;
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};
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static inline struct rcar_du_plane *to_rcar_plane(struct drm_plane *plane)
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{
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return container_of(plane, struct rcar_du_plane, plane);
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}
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/**
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* struct rcar_du_plane_state - Driver-specific plane state
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* @state: base DRM plane state
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* @format: information about the pixel format used by the plane
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* @hwindex: 0-based hardware plane index, -1 means unused
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* @alpha: value of the plane alpha property
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* @colorkey: value of the plane colorkey property
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* @zpos: value of the plane zpos property
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*/
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struct rcar_du_plane_state {
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struct drm_plane_state state;
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const struct rcar_du_format_info *format;
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int hwindex;
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enum rcar_du_plane_source source;
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unsigned int alpha;
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unsigned int colorkey;
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unsigned int zpos;
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};
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static inline struct rcar_du_plane_state *
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to_rcar_plane_state(struct drm_plane_state *state)
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{
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return container_of(state, struct rcar_du_plane_state, state);
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}
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int rcar_du_atomic_check_planes(struct drm_device *dev,
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struct drm_atomic_state *state);
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int rcar_du_planes_init(struct rcar_du_group *rgrp);
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void __rcar_du_plane_setup(struct rcar_du_group *rgrp,
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const struct rcar_du_plane_state *state);
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static inline void rcar_du_plane_setup(struct rcar_du_plane *plane)
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{
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struct rcar_du_plane_state *state =
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to_rcar_plane_state(plane->plane.state);
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return __rcar_du_plane_setup(plane->group, state);
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}
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#endif /* __RCAR_DU_PLANE_H__ */
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