d7ade201ae
To be able to perform page flips in DRM without flicker we need to be able to notify the rcar-du module when the VSP has completed its processing. We must not have bidirectional dependencies on the two components to maintain support for loadable modules, thus we extend the API to allow a callback to be registered within the VSP DRM interface. Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/*
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* vsp1_drm.h -- R-Car VSP1 DRM/KMS Interface
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*
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* Copyright (C) 2015 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 __VSP1_DRM_H__
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#define __VSP1_DRM_H__
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#include <linux/videodev2.h>
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#include "vsp1_pipe.h"
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/**
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* vsp1_drm - State for the API exposed to the DRM driver
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* @pipe: the VSP1 pipeline used for display
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* @num_inputs: number of active pipeline inputs at the beginning of an update
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* @inputs: source crop rectangle, destination compose rectangle and z-order
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* position for every input
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* @du_complete: frame completion callback for the DU driver (optional)
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* @du_private: data to be passed to the du_complete callback
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*/
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struct vsp1_drm {
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struct vsp1_pipeline pipe;
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unsigned int num_inputs;
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struct {
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bool enabled;
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struct v4l2_rect crop;
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struct v4l2_rect compose;
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unsigned int zpos;
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} inputs[VSP1_MAX_RPF];
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/* Frame synchronisation */
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void (*du_complete)(void *);
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void *du_private;
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};
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static inline struct vsp1_drm *to_vsp1_drm(struct vsp1_pipeline *pipe)
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{
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return container_of(pipe, struct vsp1_drm, pipe);
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}
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int vsp1_drm_init(struct vsp1_device *vsp1);
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void vsp1_drm_cleanup(struct vsp1_device *vsp1);
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int vsp1_drm_create_links(struct vsp1_device *vsp1);
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void vsp1_drm_display_start(struct vsp1_device *vsp1);
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#endif /* __VSP1_DRM_H__ */
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