LXR linux/drivers/media/platform/vsp1/vsp1

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * vsp1_drm.h  --  R-Car VSP1 DRM/KMS Interface
   4 *
   5 * Copyright (C) 2015 Renesas Electronics Corporation
   6 *
   7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
   8 */
   9#ifndef __VSP1_DRM_H__
  10#define __VSP1_DRM_H__
  11
  12#include <linux/mutex.h>
  13#include <linux/videodev2.h>
  14#include <linux/wait.h>
  15
  16#include <media/vsp1.h>
  17
  18#include "vsp1_pipe.h"
  19
  20/**
  21 * struct vsp1_drm_pipeline - State for the API exposed to the DRM driver
  22 * @pipe: the VSP1 pipeline used for display
  23 * @width: output display width
  24 * @height: output display height
  25 * @force_brx_release: when set, release the BRx during the next reconfiguration
  26 * @wait_queue: wait queue to wait for BRx release completion
  27 * @uif: UIF entity if available for the pipeline
  28 * @crc: CRC computation configuration
  29 * @du_complete: frame completion callback for the DU driver (optional)
  30 * @du_private: data to be passed to the du_complete callback
  31 */
  32struct vsp1_drm_pipeline {
  33        struct vsp1_pipeline pipe;
  34
  35        unsigned int width;
  36        unsigned int height;
  37
  38        bool force_brx_release;
  39        wait_queue_head_t wait_queue;
  40
  41        struct vsp1_entity *uif;
  42        struct vsp1_du_crc_config crc;
  43
  44        /* Frame synchronisation */
  45        void (*du_complete)(void *data, unsigned int status, u32 crc);
  46        void *du_private;
  47};
  48
  49/**
  50 * struct vsp1_drm - State for the API exposed to the DRM driver
  51 * @pipe: the VSP1 DRM pipeline used for display
  52 * @lock: protects the BRU and BRS allocation
  53 * @inputs: source crop rectangle, destination compose rectangle and z-order
  54 *      position for every input (indexed by RPF index)
  55 */
  56struct vsp1_drm {
  57        struct vsp1_drm_pipeline pipe[VSP1_MAX_LIF];
  58        struct mutex lock;
  59
  60        struct {
  61                struct v4l2_rect crop;
  62                struct v4l2_rect compose;
  63                unsigned int zpos;
  64        } inputs[VSP1_MAX_RPF];
  65};
  66
  67static inline struct vsp1_drm_pipeline *
  68to_vsp1_drm_pipeline(struct vsp1_pipeline *pipe)
  69{
  70        return container_of(pipe, struct vsp1_drm_pipeline, pipe);
  71}
  72
  73int vsp1_drm_init(struct vsp1_device *vsp1);
  74void vsp1_drm_cleanup(struct vsp1_device *vsp1);
  75
  76#endif /* __VSP1_DRM_H__ */
  77