LXR linux/drivers/media/platform/davinci/vpif

   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 */
  29enum vpif_channel_id {
  30        VPIF_CHANNEL0_VIDEO = 0,
  31        VPIF_CHANNEL1_VIDEO,
  32};
  33
  34struct 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
  41struct vpif_cap_buffer {
  42        struct vb2_v4l2_buffer vb;
  43        struct list_head list;
  44};
  45
  46struct 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
  78struct 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
  99struct 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 */
 108