drivers/media/platform/vsp1/vsp1_rwpf.h

   1 /*
   2  * vsp1_rwpf.h  --  R-Car VSP1 Read and Write Pixel Formatters
   3  *
   4  * Copyright (C) 2013-2014 Renesas Electronics Corporation
   5  *
   6  * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  */
  13 #ifndef __VSP1_RWPF_H__
  14 #define __VSP1_RWPF_H__
  15
  16 #include <linux/spinlock.h>
  17
  18 #include <media/media-entity.h>
  19 #include <media/v4l2-ctrls.h>
  20 #include <media/v4l2-subdev.h>
  21
  22 #include "vsp1.h"
  23 #include "vsp1_entity.h"
  24
  25 #define RWPF_PAD_SINK                           0
  26 #define RWPF_PAD_SOURCE                         1
  27
  28 struct v4l2_ctrl;
  29 struct vsp1_dl_manager;
  30 struct vsp1_pipeline;
  31 struct vsp1_rwpf;
  32 struct vsp1_video;
  33
  34 struct vsp1_rwpf_memory {
  35         dma_addr_t addr[3];
  36 };
  37
  38 struct vsp1_rwpf {
  39         struct vsp1_entity entity;
  40         struct v4l2_ctrl_handler ctrls;
  41
  42         struct vsp1_pipeline *pipe;
  43         struct vsp1_video *video;
  44
  45         unsigned int max_width;
  46         unsigned int max_height;
  47
  48         struct v4l2_pix_format_mplane format;
  49         const struct vsp1_format_info *fmtinfo;
  50         unsigned int bru_input;
  51
  52         unsigned int alpha;
  53
  54         u32 mult_alpha;
  55         u32 outfmt;
  56
  57         struct {
  58                 spinlock_t lock;
  59                 struct v4l2_ctrl *ctrls[2];
  60                 unsigned int pending;
  61                 unsigned int active;
  62         } flip;
  63
  64         unsigned int offsets[2];
  65         struct vsp1_rwpf_memory mem;
  66
  67         struct vsp1_dl_manager *dlm;
  68 };
  69
  70 static inline struct vsp1_rwpf *to_rwpf(struct v4l2_subdev *subdev)
  71 {
  72         return container_of(subdev, struct vsp1_rwpf, entity.subdev);
  73 }
  74
  75 static inline struct vsp1_rwpf *entity_to_rwpf(struct vsp1_entity *entity)
  76 {
  77         return container_of(entity, struct vsp1_rwpf, entity);
  78 }
  79
  80 struct vsp1_rwpf *vsp1_rpf_create(struct vsp1_device *vsp1, unsigned int index);
  81 struct vsp1_rwpf *vsp1_wpf_create(struct vsp1_device *vsp1, unsigned int index);
  82
  83 int vsp1_rwpf_init_ctrls(struct vsp1_rwpf *rwpf, unsigned int ncontrols);
  84
  85 extern const struct v4l2_subdev_pad_ops vsp1_rwpf_pad_ops;
  86
  87 struct v4l2_rect *vsp1_rwpf_get_crop(struct vsp1_rwpf *rwpf,
  88                                      struct v4l2_subdev_pad_config *config);
  89 /**
  90  * vsp1_rwpf_set_memory - Configure DMA addresses for a [RW]PF
  91  * @rwpf: the [RW]PF instance
  92  * @dl: the display list
  93  *
  94  * This function applies the cached memory buffer address to the display list.
  95  */
  96 static inline void vsp1_rwpf_set_memory(struct vsp1_rwpf *rwpf,
  97                                         struct vsp1_dl_list *dl)
  98 {
  99         rwpf->entity.ops->set_memory(&rwpf->entity, dl);
 100 }
 101
 102 #endif /* __VSP1_RWPF_H__ */