drivers/media/platform/davinci/vpif_capture.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (C) 2009 Texas Instruments Inc
   4  */
   5
   6 #ifndef VPIF_CAPTURE_H
   7 #define VPIF_CAPTURE_H
   8
   9 /* Header files */
  10 #include <media/videobuf2-dma-contig.h>
  11 #include <media/v4l2-device.h>
  12
  13 #include "vpif.h"
  14
  15 /* Macros */
  16 #define VPIF_CAPTURE_VERSION            "0.0.2"
  17
  18 #define VPIF_VALID_FIELD(field)         (((V4L2_FIELD_ANY == field) || \
  19         (V4L2_FIELD_NONE == field)) || \
  20         (((V4L2_FIELD_INTERLACED == field) || \
  21         (V4L2_FIELD_SEQ_TB == field)) || \
  22         (V4L2_FIELD_SEQ_BT == field)))
  23
  24 #define VPIF_CAPTURE_MAX_DEVICES        2
  25 #define VPIF_VIDEO_INDEX                0
  26 #define VPIF_NUMBER_OF_OBJECTS          1
  27
  28 /* Enumerated data type to give id to each device per channel */
  29 enum vpif_channel_id {
  30         VPIF_CHANNEL0_VIDEO = 0,
  31         VPIF_CHANNEL1_VIDEO,
  32 };
  33
  34 struct video_obj {
  35         enum v4l2_field buf_field;
  36         /* Currently selected or default standard */
  37         v4l2_std_id stdid;
  38         struct v4l2_dv_timings dv_timings;
  39 };
  40
  41 struct vpif_cap_buffer {
  42         struct vb2_v4l2_buffer vb;
  43         struct list_head list;
  44 };
  45
  46 struct common_obj {
  47         /* Pointer pointing to current v4l2_buffer */
  48         struct vpif_cap_buffer *cur_frm;
  49         /* Pointer pointing to current v4l2_buffer */
  50         struct vpif_cap_buffer *next_frm;
  51         /* Used to store pixel format */
  52         struct v4l2_format fmt;
  53         /* Buffer queue used in video-buf */
  54         struct vb2_queue buffer_queue;
  55         /* Queue of filled frames */
  56         struct list_head dma_queue;
  57         /* Protects the dma_queue field */
  58         spinlock_t irqlock;
  59         /* lock used to access this structure */
  60         struct mutex lock;
  61         /* Function pointer to set the addresses */
  62         void (*set_addr) (unsigned long, unsigned long, unsigned long,
  63                           unsigned long);
  64         /* offset where Y top starts from the starting of the buffer */
  65         u32 ytop_off;
  66         /* offset where Y bottom starts from the starting of the buffer */
  67         u32 ybtm_off;
  68         /* offset where C top starts from the starting of the buffer */
  69         u32 ctop_off;
  70         /* offset where C bottom starts from the starting of the buffer */
  71         u32 cbtm_off;
  72         /* Indicates width of the image data */
  73         u32 width;
  74         /* Indicates height of the image data */
  75         u32 height;
  76 };
  77
  78 struct channel_obj {
  79         /* Identifies video device for this channel */
  80         struct video_device video_dev;
  81         /* Indicates id of the field which is being displayed */
  82         u32 field_id;
  83         /* flag to indicate whether decoder is initialized */
  84         u8 initialized;
  85         /* Identifies channel */
  86         enum vpif_channel_id channel_id;
  87         /* Current input */
  88         u32 input_idx;
  89         /* subdev corresponding to the current input, may be NULL */
  90         struct v4l2_subdev *sd;
  91         /* vpif configuration params */
  92         struct vpif_params vpifparams;
  93         /* common object array */
  94         struct common_obj common[VPIF_NUMBER_OF_OBJECTS];
  95         /* video object */
  96         struct video_obj video;
  97 };
  98
  99 struct vpif_device {
 100         struct v4l2_device v4l2_dev;
 101         struct channel_obj *dev[VPIF_CAPTURE_NUM_CHANNELS];
 102         struct v4l2_subdev **sd;
 103         struct v4l2_async_notifier notifier;
 104         struct vpif_capture_config *config;
 105 };
 106
 107 #endif                          /* VPIF_CAPTURE_H */