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      1 #ifndef __LINUX_UVCVIDEO_H_
      2 #define __LINUX_UVCVIDEO_H_
      3 
      4 #include <linux/ioctl.h>
      5 #include <linux/types.h>
      6 
      7 /*
      8  * Dynamic controls
      9  */
     10 
     11 /* Data types for UVC control data */
     12 #define UVC_CTRL_DATA_TYPE_RAW		0
     13 #define UVC_CTRL_DATA_TYPE_SIGNED	1
     14 #define UVC_CTRL_DATA_TYPE_UNSIGNED	2
     15 #define UVC_CTRL_DATA_TYPE_BOOLEAN	3
     16 #define UVC_CTRL_DATA_TYPE_ENUM		4
     17 #define UVC_CTRL_DATA_TYPE_BITMASK	5
     18 
     19 /* Control flags */
     20 #define UVC_CTRL_FLAG_SET_CUR		(1 << 0)
     21 #define UVC_CTRL_FLAG_GET_CUR		(1 << 1)
     22 #define UVC_CTRL_FLAG_GET_MIN		(1 << 2)
     23 #define UVC_CTRL_FLAG_GET_MAX		(1 << 3)
     24 #define UVC_CTRL_FLAG_GET_RES		(1 << 4)
     25 #define UVC_CTRL_FLAG_GET_DEF		(1 << 5)
     26 /* Control should be saved at suspend and restored at resume. */
     27 #define UVC_CTRL_FLAG_RESTORE		(1 << 6)
     28 /* Control can be updated by the camera. */
     29 #define UVC_CTRL_FLAG_AUTO_UPDATE	(1 << 7)
     30 
     31 #define UVC_CTRL_FLAG_GET_RANGE \
     32 	(UVC_CTRL_FLAG_GET_CUR | UVC_CTRL_FLAG_GET_MIN | \
     33 	 UVC_CTRL_FLAG_GET_MAX | UVC_CTRL_FLAG_GET_RES | \
     34 	 UVC_CTRL_FLAG_GET_DEF)
     35 
     36 struct uvc_menu_info {
     37 	__u32 value;
     38 	__u8 name[32];
     39 };
     40 
     41 struct uvc_xu_control_mapping {
     42 	__u32 id;
     43 	__u8 name[32];
     44 	__u8 entity[16];
     45 	__u8 selector;
     46 
     47 	__u8 size;
     48 	__u8 offset;
     49 	__u32 v4l2_type;
     50 	__u32 data_type;
     51 
     52 	struct uvc_menu_info __user *menu_info;
     53 	__u32 menu_count;
     54 
     55 	__u32 reserved[4];
     56 };
     57 
     58 struct uvc_xu_control_query {
     59 	__u8 unit;
     60 	__u8 selector;
     61 	__u8 query;		/* Video Class-Specific Request Code, */
     62 				/* defined in linux/usb/video.h A.8.  */
     63 	__u16 size;
     64 	__u8 __user *data;
     65 };
     66 
     67 #define UVCIOC_CTRL_MAP		_IOWR('u', 0x20, struct uvc_xu_control_mapping)
     68 #define UVCIOC_CTRL_QUERY	_IOWR('u', 0x21, struct uvc_xu_control_query)
     69 
     70 #endif
     71