6d62ef3ac3
On R-Car Gen3 SoCs the DU lost its ability to access memory directly and needs to work in conjunction with the VSP to do so. This commit handles the VSP internally to hide it from the user. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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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