include/linux/uvcvideo.h

   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;
  62         __u16 size;
  63         __u8 __user *data;
  64 };
  65
  66 #define UVCIOC_CTRL_MAP         _IOWR('u', 0x20, struct uvc_xu_control_mapping)
  67 #define UVCIOC_CTRL_QUERY       _IOWR('u', 0x21, struct uvc_xu_control_query)
  68
  69 #endif