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As we are going to add support for the Allwinner DE2 engine in sun4i-drm driver, we will finally have two types of display engines -- the DE1 backend and the DE2 mixer. They both do some display blending and feed graphics data to TCON, and is part of the "Display Engine" called by Allwinner, so I choose to call them both "engine" here. Abstract the engine type to a new struct with an ops struct, which contains functions that should be called outside the engine-specified code (in TCON, CRTC or TV Encoder code). In order to preserve bisectability, we also switch the backend and layer code in its own module. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
34 lines
850 B
C
34 lines
850 B
C
/*
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* Copyright (C) 2015 Free Electrons
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* Copyright (C) 2015 NextThing Co
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*
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* Maxime Ripard <maxime.ripard@free-electrons.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*/
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#ifndef _SUN4I_LAYER_H_
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#define _SUN4I_LAYER_H_
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struct sunxi_engine;
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struct sun4i_layer {
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struct drm_plane plane;
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struct sun4i_drv *drv;
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struct sun4i_backend *backend;
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int id;
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};
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static inline struct sun4i_layer *
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plane_to_sun4i_layer(struct drm_plane *plane)
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{
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return container_of(plane, struct sun4i_layer, plane);
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}
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struct drm_plane **sun4i_layers_init(struct drm_device *drm,
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struct sunxi_engine *engine);
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#endif /* _SUN4I_LAYER_H_ */
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