LXR linux/drivers/media/platform/xilinx/xilinx-vipp.h

   1/*
   2 * Xilinx Video IP Composite Device
   3 *
   4 * Copyright (C) 2013-2015 Ideas on Board
   5 * Copyright (C) 2013-2015 Xilinx, Inc.
   6 *
   7 * Contacts: Hyun Kwon <hyun.kwon@xilinx.com>
   8 *           Laurent Pinchart <laurent.pinchart@ideasonboard.com>
   9 *
  10 * This program is free software; you can redistribute it and/or modify
  11 * it under the terms of the GNU General Public License version 2 as
  12 * published by the Free Software Foundation.
  13 */
  14
  15#ifndef __XILINX_VIPP_H__
  16#define __XILINX_VIPP_H__
  17
  18#include <linux/list.h>
  19#include <linux/mutex.h>
  20#include <media/media-device.h>
  21#include <media/v4l2-async.h>
  22#include <media/v4l2-ctrls.h>
  23#include <media/v4l2-device.h>
  24
  25/**
  26 * struct xvip_composite_device - Xilinx Video IP device structure
  27 * @v4l2_dev: V4L2 device
  28 * @media_dev: media device
  29 * @dev: (OF) device
  30 * @notifier: V4L2 asynchronous subdevs notifier
  31 * @entities: entities in the graph as a list of xvip_graph_entity
  32 * @num_subdevs: number of subdevs in the pipeline
  33 * @dmas: list of DMA channels at the pipeline output and input
  34 * @v4l2_caps: V4L2 capabilities of the whole device (see VIDIOC_QUERYCAP)
  35 * @lock: This is to ensure all dma path entities acquire same pipeline object
  36 */
  37struct xvip_composite_device {
  38        struct v4l2_device v4l2_dev;
  39        struct media_device media_dev;
  40        struct device *dev;
  41
  42        struct v4l2_async_notifier notifier;
  43        struct list_head entities;
  44        unsigned int num_subdevs;
  45
  46        struct list_head dmas;
  47        u32 v4l2_caps;
  48        struct mutex lock; /* lock to protect xvip pipeline instance */
  49};
  50
  51bool xvip_subdev_set_streaming(struct xvip_composite_device *xdev,
  52                               struct v4l2_subdev *subdev, bool enable);
  53
  54#endif /* __XILINX_VIPP_H__ */
  55