cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

common.c (1219B)

      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 */
     17struct 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}
     38EXPORT_SYMBOL(fimc_find_remote_sensor);
     39
     40void __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}
     45EXPORT_SYMBOL(__fimc_vidioc_querycap);
     46
     47MODULE_LICENSE("GPL");