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 
32 #define UVC_CTRL_FLAG_GET_RANGE \
33 	(UVC_CTRL_FLAG_GET_CUR | UVC_CTRL_FLAG_GET_MIN | \
34 	 UVC_CTRL_FLAG_GET_MAX | UVC_CTRL_FLAG_GET_RES | \
35 	 UVC_CTRL_FLAG_GET_DEF)
36 
37 struct uvc_menu_info {
38 	__u32 value;
39 	__u8 name[32];
40 };
41 
42 struct uvc_xu_control_mapping {
43 	__u32 id;
44 	__u8 name[32];
45 	__u8 entity[16];
46 	__u8 selector;
47 
48 	__u8 size;
49 	__u8 offset;
50 	__u32 v4l2_type;
51 	__u32 data_type;
52 
53 	struct uvc_menu_info __user *menu_info;
54 	__u32 menu_count;
55 
56 	__u32 reserved[4];
57 };
58 
59 struct uvc_xu_control_query {
60 	__u8 unit;
61 	__u8 selector;
62 	__u8 query;		/* Video Class-Specific Request Code, */
63 				/* defined in linux/usb/video.h A.8.  */
64 	__u16 size;
65 	__u8 __user *data;
66 };
67 
68 #define UVCIOC_CTRL_MAP		_IOWR('u', 0x20, struct uvc_xu_control_mapping)
69 #define UVCIOC_CTRL_QUERY	_IOWR('u', 0x21, struct uvc_xu_control_query)
70 
71 #endif
72