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The DRM pipelines don't partition frames, as the hardware operates synchronously with the display. The entity operations access configuration data from the entity state in that case, instead of accessing the partition structure. This requires special cases in entity-specific code, increasing the driver complexity. To prepare for simplifying the code, initialize a single partition for the DRM pipelines, similarly to how video pipelines create one partition spanning the full image when partitioning isn't needed. The partition is allocated statically in the vsp1_drm_pipeline structure instead of dynamically as for video pipelines, as DRM pipelines are guaranteed to operate on a single partition. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo.mondi+renesas@ideasonboard.com>
79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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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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#ifndef __VSP1_DRM_H__
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#define __VSP1_DRM_H__
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#include <linux/mutex.h>
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#include <linux/videodev2.h>
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#include <linux/wait.h>
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#include <media/vsp1.h>
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#include "vsp1_pipe.h"
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/**
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* struct vsp1_drm_pipeline - State for the API exposed to the DRM driver
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* @pipe: the VSP1 pipeline used for display
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* @partition: the pre-calculated partition used by the pipeline
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* @width: output display width
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* @height: output display height
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* @force_brx_release: when set, release the BRx during the next reconfiguration
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* @wait_queue: wait queue to wait for BRx release completion
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* @uif: UIF entity if available for the pipeline
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* @crc: CRC computation configuration
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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_pipeline {
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struct vsp1_pipeline pipe;
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struct vsp1_partition partition;
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unsigned int width;
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unsigned int height;
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bool force_brx_release;
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wait_queue_head_t wait_queue;
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struct vsp1_entity *uif;
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struct vsp1_du_crc_config crc;
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/* Frame synchronisation */
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void (*du_complete)(void *data, unsigned int status, u32 crc);
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void *du_private;
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};
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/**
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* struct vsp1_drm - State for the API exposed to the DRM driver
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* @pipe: the VSP1 DRM pipeline used for display
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* @lock: protects the BRU and BRS allocation
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* @inputs: source crop rectangle, destination compose rectangle and z-order
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* position for every input (indexed by RPF index)
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*/
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struct vsp1_drm {
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struct vsp1_drm_pipeline pipe[VSP1_MAX_LIF];
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struct mutex lock;
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struct {
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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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};
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static inline struct vsp1_drm_pipeline *
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to_vsp1_drm_pipeline(struct vsp1_pipeline *pipe)
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{
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return container_of(pipe, struct vsp1_drm_pipeline, 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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#endif /* __VSP1_DRM_H__ */
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