drivers/media/platform/vsp1/vsp1_drm.h

   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  * 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  */
  32 struct 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  * 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  */
  56 struct 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
  67 static inline struct vsp1_drm_pipeline *
  68 to_vsp1_drm_pipeline(struct vsp1_pipeline *pipe)
  69 {
  70         return container_of(pipe, struct vsp1_drm_pipeline, pipe);
  71 }
  72
  73 int vsp1_drm_init(struct vsp1_device *vsp1);
  74 void vsp1_drm_cleanup(struct vsp1_device *vsp1);
  75
  76 #endif /* __VSP1_DRM_H__ */