cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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uvcvideo.h (2581B)

      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/* 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
     39struct uvc_menu_info {
     40	__u32 value;
     41	__u8 name[32];
     42};
     43
     44struct uvc_xu_control_mapping {
     45	__u32 id;
     46	__u8 name[32];
     47	__u8 entity[16];
     48	__u8 selector;
     49
     50	__u8 size;
     51	__u8 offset;
     52	__u32 v4l2_type;
     53	__u32 data_type;
     54
     55	struct uvc_menu_info __user *menu_info;
     56	__u32 menu_count;
     57
     58	__u32 reserved[4];
     59};
     60
     61struct uvc_xu_control_query {
     62	__u8 unit;
     63	__u8 selector;
     64	__u8 query;		/* Video Class-Specific Request Code, */
     65				/* defined in linux/usb/video.h A.8.  */
     66	__u16 size;
     67	__u8 __user *data;
     68};
     69
     70#define UVCIOC_CTRL_MAP		_IOWR('u', 0x20, struct uvc_xu_control_mapping)
     71#define UVCIOC_CTRL_QUERY	_IOWR('u', 0x21, struct uvc_xu_control_query)
     72
     73/*
     74 * Metadata node
     75 */
     76
     77/**
     78 * struct uvc_meta_buf - metadata buffer building block
     79 * @ns: system timestamp of the payload in nanoseconds
     80 * @sof: USB Frame Number
     81 * @length: length of the payload header
     82 * @flags: payload header flags
     83 * @buf: optional device-specific header data
     84 *
     85 * UVC metadata nodes fill buffers with possibly multiple instances of this
     86 * struct. The first two fields are added by the driver, they can be used for
     87 * clock synchronisation. The rest is an exact copy of a UVC payload header.
     88 * Only complete objects with complete buffers are included. Therefore it's
     89 * always sizeof(meta->ts) + sizeof(meta->sof) + meta->length bytes large.
     90 */
     91struct uvc_meta_buf {
     92	__u64 ns;
     93	__u16 sof;
     94	__u8 length;
     95	__u8 flags;
     96	__u8 buf[];
     97} __packed;
     98
     99#endif