1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
2 | #ifndef __LINUX_UVCVIDEO_H_ |
3 | #define __LINUX_UVCVIDEO_H_ |
4 | |
5 | #include <linux/ioctl.h> |
6 | #include <linux/types.h> |
7 | |
8 | /* |
9 | * Dynamic controls |
10 | */ |
11 | |
12 | /* Data types for UVC control data */ |
13 | #define UVC_CTRL_DATA_TYPE_RAW 0 |
14 | #define UVC_CTRL_DATA_TYPE_SIGNED 1 |
15 | #define UVC_CTRL_DATA_TYPE_UNSIGNED 2 |
16 | #define UVC_CTRL_DATA_TYPE_BOOLEAN 3 |
17 | #define UVC_CTRL_DATA_TYPE_ENUM 4 |
18 | #define UVC_CTRL_DATA_TYPE_BITMASK 5 |
19 | |
20 | /* Control flags */ |
21 | #define UVC_CTRL_FLAG_SET_CUR (1 << 0) |
22 | #define UVC_CTRL_FLAG_GET_CUR (1 << 1) |
23 | #define UVC_CTRL_FLAG_GET_MIN (1 << 2) |
24 | #define UVC_CTRL_FLAG_GET_MAX (1 << 3) |
25 | #define UVC_CTRL_FLAG_GET_RES (1 << 4) |
26 | #define UVC_CTRL_FLAG_GET_DEF (1 << 5) |
27 | /* Control should be saved at suspend and restored at resume. */ |
28 | #define UVC_CTRL_FLAG_RESTORE (1 << 6) |
29 | /* Control can be updated by the camera. */ |
30 | #define UVC_CTRL_FLAG_AUTO_UPDATE (1 << 7) |
31 | /* Control supports asynchronous reporting */ |
32 | #define UVC_CTRL_FLAG_ASYNCHRONOUS (1 << 8) |
33 | |
34 | #define UVC_CTRL_FLAG_GET_RANGE \ |
35 | (UVC_CTRL_FLAG_GET_CUR | UVC_CTRL_FLAG_GET_MIN | \ |
36 | UVC_CTRL_FLAG_GET_MAX | UVC_CTRL_FLAG_GET_RES | \ |
37 | UVC_CTRL_FLAG_GET_DEF) |
38 | |
39 | #define 32 |
40 | |
41 | struct { |
42 | __u32 ; |
43 | __u8 [UVC_MENU_NAME_LEN]; |
44 | }; |
45 | |
46 | struct uvc_xu_control_mapping { |
47 | __u32 id; |
48 | __u8 name[32]; |
49 | __u8 entity[16]; |
50 | __u8 selector; |
51 | |
52 | __u8 size; |
53 | __u8 offset; |
54 | __u32 v4l2_type; |
55 | __u32 data_type; |
56 | |
57 | struct uvc_menu_info __user *; |
58 | __u32 ; |
59 | |
60 | __u32 reserved[4]; |
61 | }; |
62 | |
63 | struct uvc_xu_control_query { |
64 | __u8 unit; |
65 | __u8 selector; |
66 | __u8 query; /* Video Class-Specific Request Code, */ |
67 | /* defined in linux/usb/video.h A.8. */ |
68 | __u16 size; |
69 | __u8 __user *data; |
70 | }; |
71 | |
72 | #define UVCIOC_CTRL_MAP _IOWR('u', 0x20, struct uvc_xu_control_mapping) |
73 | #define UVCIOC_CTRL_QUERY _IOWR('u', 0x21, struct uvc_xu_control_query) |
74 | |
75 | /* |
76 | * Metadata node |
77 | */ |
78 | |
79 | /** |
80 | * struct uvc_meta_buf - metadata buffer building block |
81 | * @ns: system timestamp of the payload in nanoseconds |
82 | * @sof: USB Frame Number |
83 | * @length: length of the payload header |
84 | * @flags: payload header flags |
85 | * @buf: optional device-specific header data |
86 | * |
87 | * UVC metadata nodes fill buffers with possibly multiple instances of this |
88 | * struct. The first two fields are added by the driver, they can be used for |
89 | * clock synchronisation. The rest is an exact copy of a UVC payload header. |
90 | * Only complete objects with complete buffers are included. Therefore it's |
91 | * always sizeof(meta->ns) + sizeof(meta->sof) + meta->length bytes large. |
92 | */ |
93 | struct uvc_meta_buf { |
94 | __u64 ns; |
95 | __u16 sof; |
96 | __u8 length; |
97 | __u8 flags; |
98 | __u8 buf[]; |
99 | } __packed; |
100 | |
101 | #endif |
102 | |