1 | // SPDX-License-Identifier: GPL-2.0-only |
---|---|
2 | /* |
3 | * Samsung S5P/EXYNOS4 SoC Camera Subsystem driver |
4 | * |
5 | * Copyright (C) 2013 Samsung Electronics Co., Ltd. |
6 | * Author: Sylwester Nawrocki <s.nawrocki@samsung.com> |
7 | */ |
8 | |
9 | #include <linux/module.h> |
10 | #include <media/drv-intf/exynos-fimc.h> |
11 | #include "common.h" |
12 | |
13 | /* |
14 | * Called with the media graph mutex held or media_entity_is_streaming(entity) |
15 | * true. |
16 | */ |
17 | struct v4l2_subdev *fimc_find_remote_sensor(struct media_entity *entity) |
18 | { |
19 | struct media_pad *pad = &entity->pads[0]; |
20 | struct v4l2_subdev *sd; |
21 | |
22 | while (pad->flags & MEDIA_PAD_FL_SINK) { |
23 | /* source pad */ |
24 | pad = media_pad_remote_pad_first(pad); |
25 | if (!pad || !is_media_entity_v4l2_subdev(entity: pad->entity)) |
26 | break; |
27 | |
28 | sd = media_entity_to_v4l2_subdev(pad->entity); |
29 | |
30 | if (sd->grp_id == GRP_ID_FIMC_IS_SENSOR || |
31 | sd->grp_id == GRP_ID_SENSOR) |
32 | return sd; |
33 | /* sink pad */ |
34 | pad = &sd->entity.pads[0]; |
35 | } |
36 | return NULL; |
37 | } |
38 | EXPORT_SYMBOL(fimc_find_remote_sensor); |
39 | |
40 | void __fimc_vidioc_querycap(struct device *dev, struct v4l2_capability *cap) |
41 | { |
42 | strscpy(cap->driver, dev->driver->name, sizeof(cap->driver)); |
43 | strscpy(cap->card, dev->driver->name, sizeof(cap->card)); |
44 | } |
45 | EXPORT_SYMBOL(__fimc_vidioc_querycap); |
46 | |
47 | MODULE_LICENSE("GPL"); |
48 |