/*
 * camera_version_utils.h - utilities for different kernel versions
 * camera driver supports
 *
 * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef __camera_version_utils__
#define __camera_version_utils__

#include <linux/videodev2.h>

#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/debugfs.h>

#include <media/v4l2-device.h>
#include <media/v4l2-subdev.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-mediabus.h>
#include <media/videobuf2-dma-contig.h>
#include <media/v4l2-dv-timings.h>

int tegra_media_entity_init(struct media_entity *entity, u16 num_pads,
		struct media_pad *pad, bool is_subdev, bool is_sensor);

int tegra_media_create_link(struct media_entity *source, u16 source_pad,
		struct media_entity *sink, u16 sink_pad, u32 flags);

bool tegra_is_v4l2_subdev(struct media_entity *entity);

bool tegra_v4l2_match_dv_timings(struct v4l2_dv_timings *t1,
				struct v4l2_dv_timings *t2,
				unsigned pclock_delta,
				bool match_reduced_fps);

int tegra_vb2_dma_init(struct device *dev, void **alloc_ctx,
		unsigned int size, atomic_t *refcount);

void tegra_vb2_dma_cleanup(struct device *dev, void *alloc_ctx,
		atomic_t *refcount);

#endif