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 <media/media-entity.h>
  17 #include <media/v4l2-ctrls.h>
  18 #include <media/v4l2-subdev.h>
  19
  20 #include "vsp1.h"
  21 #include "vsp1_entity.h"
  22
  23 #define RWPF_PAD_SINK                           0
  24 #define RWPF_PAD_SOURCE                         1
  25
  26 struct v4l2_ctrl;
  27 struct vsp1_dl_manager;
  28 struct vsp1_rwpf;
  29 struct vsp1_video;
  30
  31 struct vsp1_rwpf_memory {
  32         dma_addr_t addr[3];
  33 };
  34
  35 struct vsp1_rwpf {
  36         struct vsp1_entity entity;
  37         struct v4l2_ctrl_handler ctrls;
  38
  39         struct vsp1_video *video;
  40
  41         unsigned int max_width;
  42         unsigned int max_height;
  43
  44         struct v4l2_pix_format_mplane format;
  45         const struct vsp1_format_info *fmtinfo;
  46         struct {
  47                 unsigned int left;
  48                 unsigned int top;
  49         } location;
  50         struct v4l2_rect crop;
  51
  52         unsigned int alpha;
  53
  54         unsigned int offsets[2];
  55         struct vsp1_rwpf_memory mem;
  56
  57         struct vsp1_dl_manager *dlm;
  58 };
  59
  60 static inline struct vsp1_rwpf *to_rwpf(struct v4l2_subdev *subdev)
  61 {
  62         return container_of(subdev, struct vsp1_rwpf, entity.subdev);
  63 }
  64
  65 static inline struct vsp1_rwpf *entity_to_rwpf(struct vsp1_entity *entity)
  66 {
  67         return container_of(entity, struct vsp1_rwpf, entity);
  68 }
  69
  70 struct vsp1_rwpf *vsp1_rpf_create(struct vsp1_device *vsp1, unsigned int index);
  71 struct vsp1_rwpf *vsp1_wpf_create(struct vsp1_device *vsp1, unsigned int index);
  72
  73 int vsp1_rwpf_init_ctrls(struct vsp1_rwpf *rwpf);
  74
  75 int vsp1_rwpf_enum_mbus_code(struct v4l2_subdev *subdev,
  76                              struct v4l2_subdev_pad_config *cfg,
  77                              struct v4l2_subdev_mbus_code_enum *code);
  78 int vsp1_rwpf_enum_frame_size(struct v4l2_subdev *subdev,
  79                               struct v4l2_subdev_pad_config *cfg,
  80                               struct v4l2_subdev_frame_size_enum *fse);
  81 int vsp1_rwpf_get_format(struct v4l2_subdev *subdev,
  82                          struct v4l2_subdev_pad_config *cfg,
  83                          struct v4l2_subdev_format *fmt);
  84 int vsp1_rwpf_set_format(struct v4l2_subdev *subdev,
  85                          struct v4l2_subdev_pad_config *cfg,
  86                          struct v4l2_subdev_format *fmt);
  87 int vsp1_rwpf_get_selection(struct v4l2_subdev *subdev,
  88                             struct v4l2_subdev_pad_config *cfg,
  89                             struct v4l2_subdev_selection *sel);
  90 int vsp1_rwpf_set_selection(struct v4l2_subdev *subdev,
  91                             struct v4l2_subdev_pad_config *cfg,
  92                             struct v4l2_subdev_selection *sel);
  93
  94 /**
  95  * vsp1_rwpf_set_memory - Configure DMA addresses for a [RW]PF
  96  * @rwpf: the [RW]PF instance
  97  *
  98  * This function applies the cached memory buffer address to the hardware.
  99  */
 100 static inline void vsp1_rwpf_set_memory(struct vsp1_rwpf *rwpf)
 101 {
 102         rwpf->entity.ops->set_memory(&rwpf->entity);
 103 }
 104
 105 #endif /* __VSP1_RWPF_H__ */