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 */
 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 vb2 */
 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 */