1 /*
2 * Samsung S5P/EXYNOS4 SoC Camera Subsystem driver
3 *
4 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
5 * Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12 #include <linux/module.h>
13 #include <media/drv-intf/exynos-fimc.h>
14 #include "common.h"
15
16 /* Called with the media graph mutex held or entity->stream_count > 0. */
fimc_find_remote_sensor(struct media_entity * entity)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_entity_remote_pad(pad);
25 if (!pad || !is_media_entity_v4l2_subdev(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
__fimc_vidioc_querycap(struct device * dev,struct v4l2_capability * cap,unsigned int caps)40 void __fimc_vidioc_querycap(struct device *dev, struct v4l2_capability *cap,
41 unsigned int caps)
42 {
43 strlcpy(cap->driver, dev->driver->name, sizeof(cap->driver));
44 strlcpy(cap->card, dev->driver->name, sizeof(cap->card));
45 snprintf(cap->bus_info, sizeof(cap->bus_info),
46 "platform:%s", dev_name(dev));
47 cap->device_caps = caps;
48 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
49 }
50 EXPORT_SYMBOL(__fimc_vidioc_querycap);
51
52 MODULE_LICENSE("GPL");
53
