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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 controls10 */11 12/* Data types for UVC control data */13#define UVC_CTRL_DATA_TYPE_RAW 014#define UVC_CTRL_DATA_TYPE_SIGNED 115#define UVC_CTRL_DATA_TYPE_UNSIGNED 216#define UVC_CTRL_DATA_TYPE_BOOLEAN 317#define UVC_CTRL_DATA_TYPE_ENUM 418#define UVC_CTRL_DATA_TYPE_BITMASK 519 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 UVC_MENU_NAME_LEN 3240 41struct uvc_menu_info {42 __u32 value;43 __u8 name[UVC_MENU_NAME_LEN];44};45 46struct 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 *menu_info;58 __u32 menu_count;59 60 __u32 reserved[4];61};62 63struct 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 node77 */78 79/**80 * struct uvc_meta_buf - metadata buffer building block81 * @ns: system timestamp of the payload in nanoseconds82 * @sof: USB Frame Number83 * @length: length of the payload header84 * @flags: payload header flags85 * @buf: optional device-specific header data86 *87 * UVC metadata nodes fill buffers with possibly multiple instances of this88 * struct. The first two fields are added by the driver, they can be used for89 * clock synchronisation. The rest is an exact copy of a UVC payload header.90 * Only complete objects with complete buffers are included. Therefore it's91 * always sizeof(meta->ns) + sizeof(meta->sof) + meta->length bytes large.92 */93struct uvc_meta_buf {94 __u64 ns;95 __u16 sof;96 __u8 length;97 __u8 flags;98 __u8 buf[];99} __packed;100 101#endif102