/*
 * camss-video.h
 *
 * Qualcomm MSM Camera Subsystem - V4L2 device node
 *
 * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
 * Copyright (C) 2015-2017 Linaro Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that 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.
 */
#ifndef QC_MSM_CAMSS_VIDEO_H
#define QC_MSM_CAMSS_VIDEO_H

#include <linux/mutex.h>
#include <linux/videodev2.h>
#include <media/media-entity.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-device.h>
#include <media/v4l2-fh.h>
#include <media/v4l2-mediabus.h>
#include <media/videobuf2-v4l2.h>

struct camss_buffer {
	struct vb2_v4l2_buffer vb;
	dma_addr_t addr;
	struct list_head queue;
};

struct camss_video;

struct camss_video_ops {
	int (*queue_buffer)(struct camss_video *vid, struct camss_buffer *buf);
	int (*flush_buffers)(struct camss_video *vid,
			     enum vb2_buffer_state state);
};

struct camss_video {
	struct camss *camss;
	struct vb2_queue vb2_q;
	struct video_device vdev;
	struct media_pad pad;
	struct v4l2_format active_fmt;
	enum v4l2_buf_type type;
	struct media_pipeline pipe;
	const struct camss_video_ops *ops;
	struct mutex lock;
	struct mutex q_lock;
};

void msm_video_stop_streaming(struct camss_video *video);

int msm_video_register(struct camss_video *video, struct v4l2_device *v4l2_dev,
		       const char *name);

void msm_video_unregister(struct camss_video *video);

#endif /* QC_MSM_CAMSS_VIDEO_H */