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uvcvideo.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __LINUX_UVCVIDEO_H_ #define __LINUX_UVCVIDEO_H_ #include <linux/ioctl.h> #include <linux/types.h> /* * Dynamic controls */ /* Data types for UVC control data */ #define UVC_CTRL_DATA_TYPE_RAW 0 #define UVC_CTRL_DATA_TYPE_SIGNED 1 #define UVC_CTRL_DATA_TYPE_UNSIGNED 2 #define UVC_CTRL_DATA_TYPE_BOOLEAN 3 #define UVC_CTRL_DATA_TYPE_ENUM 4 #define UVC_CTRL_DATA_TYPE_BITMASK 5 /* Control flags */ #define UVC_CTRL_FLAG_SET_CUR (1 << 0) #define UVC_CTRL_FLAG_GET_CUR (1 << 1) #define UVC_CTRL_FLAG_GET_MIN (1 << 2) #define UVC_CTRL_FLAG_GET_MAX (1 << 3) #define UVC_CTRL_FLAG_GET_RES (1 << 4) #define UVC_CTRL_FLAG_GET_DEF (1 << 5) /* Control should be saved at suspend and restored at resume. */ #define UVC_CTRL_FLAG_RESTORE (1 << 6) /* Control can be updated by the camera. */ #define UVC_CTRL_FLAG_AUTO_UPDATE (1 << 7) /* Control supports asynchronous reporting */ #define UVC_CTRL_FLAG_ASYNCHRONOUS (1 << 8) #define UVC_CTRL_FLAG_GET_RANGE \ (UVC_CTRL_FLAG_GET_CUR | UVC_CTRL_FLAG_GET_MIN | \ UVC_CTRL_FLAG_GET_MAX | UVC_CTRL_FLAG_GET_RES | \ UVC_CTRL_FLAG_GET_DEF) #define UVC_MENU_NAME_LEN 32 struct uvc_menu_info { __u32 value; __u8 name[UVC_MENU_NAME_LEN]; }; struct uvc_xu_control_mapping { __u32 id; __u8 name[32]; __u8 entity[16]; __u8 selector; __u8 size; __u8 offset; __u32 v4l2_type; __u32 data_type; struct uvc_menu_info *menu_info; __u32 menu_count; __u32 reserved[4]; }; struct uvc_xu_control_query { __u8 unit; __u8 selector; __u8 query; /* Video Class-Specific Request Code, */ /* defined in linux/usb/video.h A.8. */ __u16 size; __u8 *data; }; #define UVCIOC_CTRL_MAP _IOWR('u', 0x20, struct uvc_xu_control_mapping) #define UVCIOC_CTRL_QUERY _IOWR('u', 0x21, struct uvc_xu_control_query) /* * Metadata node */ /** * struct uvc_meta_buf - metadata buffer building block * @ns: system timestamp of the payload in nanoseconds * @sof: USB Frame Number * @length: length of the payload header * @flags: payload header flags * @buf: optional device-specific header data * * UVC metadata nodes fill buffers with possibly multiple instances of this * struct. The first two fields are added by the driver, they can be used for * clock synchronisation. The rest is an exact copy of a UVC payload header. * Only complete objects with complete buffers are included. Therefore it's * always sizeof(meta->ns) + sizeof(meta->sof) + meta->length bytes large. */ struct uvc_meta_buf { __u64 ns; __u16 sof; __u8 length; __u8 flags; __u8 buf[]; } __attribute__((packed)); #endif