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 */
108