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 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 
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 */
108