blob: d00d3ded71c0e463b7d1b220995d4ff08addf421 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
// SPDX-License-Identifier: GPL-2.0
/*
* u_uvc.h
*
* Utility definitions for the uvc function
*
* Copyright (c) 2013-2014 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
*/
#ifndef U_UVC_H
#define U_UVC_H
#include <linux/usb/composite.h>
#include <linux/usb/video.h>
#define fi_to_f_uvc_opts(f) container_of(f, struct f_uvc_opts, func_inst)
struct f_uvc_opts {
struct usb_function_instance func_inst;
unsigned int uvc_gadget_trace_param;
unsigned int streaming_interval;
unsigned int streaming_maxpacket;
unsigned int streaming_maxburst;
/*
* Control descriptors array pointers for full-/high-speed and
* super-speed. They point by default to the uvc_fs_control_cls and
* uvc_ss_control_cls arrays respectively. Legacy gadgets must
* override them in their gadget bind callback.
*/
const struct uvc_descriptor_header * const *fs_control;
const struct uvc_descriptor_header * const *ss_control;
/*
* Streaming descriptors array pointers for full-speed, high-speed and
* super-speed. They will point to the uvc_[fhs]s_streaming_cls arrays
* for configfs-based gadgets. Legacy gadgets must initialize them in
* their gadget bind callback.
*/
const struct uvc_descriptor_header * const *fs_streaming;
const struct uvc_descriptor_header * const *hs_streaming;
const struct uvc_descriptor_header * const *ss_streaming;
/* Default control descriptors for configfs-based gadgets. */
struct uvc_camera_terminal_descriptor uvc_camera_terminal;
struct uvc_processing_unit_descriptor uvc_processing;
struct uvc_output_terminal_descriptor uvc_output_terminal;
struct uvc_color_matching_descriptor uvc_color_matching;
/*
* Control descriptors pointers arrays for full-/high-speed and
* super-speed. The first element is a configurable control header
* descriptor, the other elements point to the fixed default control
* descriptors. Used by configfs only, must not be touched by legacy
* gadgets.
*/
struct uvc_descriptor_header *uvc_fs_control_cls[5];
struct uvc_descriptor_header *uvc_ss_control_cls[5];
/*
* Streaming descriptors for full-speed, high-speed and super-speed.
* Used by configfs only, must not be touched by legacy gadgets. The
* arrays are allocated at runtime as the number of descriptors isn't
* known in advance.
*/
struct uvc_descriptor_header **uvc_fs_streaming_cls;
struct uvc_descriptor_header **uvc_hs_streaming_cls;
struct uvc_descriptor_header **uvc_ss_streaming_cls;
/*
* Read/write access to configfs attributes is handled by configfs.
*
* This lock protects the descriptors from concurrent access by
* read/write and symlink creation/removal.
*/
struct mutex lock;
int refcnt;
};
void uvc_set_trace_param(unsigned int trace);
#endif /* U_UVC_H */
|
