1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Samsung S5P/EXYNOS4 SoC Camera Subsystem driver
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2013 Samsung Electronics Co., Ltd.
6*4882a593Smuzhiyun * Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <linux/module.h>
10*4882a593Smuzhiyun #include <media/drv-intf/exynos-fimc.h>
11*4882a593Smuzhiyun #include "common.h"
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun /* Called with the media graph mutex held or entity->stream_count > 0. */
fimc_find_remote_sensor(struct media_entity * entity)14*4882a593Smuzhiyun struct v4l2_subdev *fimc_find_remote_sensor(struct media_entity *entity)
15*4882a593Smuzhiyun {
16*4882a593Smuzhiyun struct media_pad *pad = &entity->pads[0];
17*4882a593Smuzhiyun struct v4l2_subdev *sd;
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun while (pad->flags & MEDIA_PAD_FL_SINK) {
20*4882a593Smuzhiyun /* source pad */
21*4882a593Smuzhiyun pad = media_entity_remote_pad(pad);
22*4882a593Smuzhiyun if (!pad || !is_media_entity_v4l2_subdev(pad->entity))
23*4882a593Smuzhiyun break;
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun sd = media_entity_to_v4l2_subdev(pad->entity);
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun if (sd->grp_id == GRP_ID_FIMC_IS_SENSOR ||
28*4882a593Smuzhiyun sd->grp_id == GRP_ID_SENSOR)
29*4882a593Smuzhiyun return sd;
30*4882a593Smuzhiyun /* sink pad */
31*4882a593Smuzhiyun pad = &sd->entity.pads[0];
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun return NULL;
34*4882a593Smuzhiyun }
35*4882a593Smuzhiyun EXPORT_SYMBOL(fimc_find_remote_sensor);
36*4882a593Smuzhiyun
__fimc_vidioc_querycap(struct device * dev,struct v4l2_capability * cap)37*4882a593Smuzhiyun void __fimc_vidioc_querycap(struct device *dev, struct v4l2_capability *cap)
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun strscpy(cap->driver, dev->driver->name, sizeof(cap->driver));
40*4882a593Smuzhiyun strscpy(cap->card, dev->driver->name, sizeof(cap->card));
41*4882a593Smuzhiyun snprintf(cap->bus_info, sizeof(cap->bus_info),
42*4882a593Smuzhiyun "platform:%s", dev_name(dev));
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun EXPORT_SYMBOL(__fimc_vidioc_querycap);
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun MODULE_LICENSE("GPL");
47