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

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * Xilinx Video IP Composite Device
   4 *
   5 * Copyright (C) 2013-2015 Ideas on Board
   6 * Copyright (C) 2013-2015 Xilinx, Inc.
   7 *
   8 * Contacts: Hyun Kwon <hyun.kwon@xilinx.com>
   9 *           Laurent Pinchart <laurent.pinchart@ideasonboard.com>
  10 */
  11
  12#ifndef __XILINX_VIPP_H__
  13#define __XILINX_VIPP_H__
  14
  15#include <linux/list.h>
  16#include <linux/mutex.h>
  17#include <media/media-device.h>
  18#include <media/v4l2-async.h>
  19#include <media/v4l2-ctrls.h>
  20#include <media/v4l2-device.h>
  21
  22/**
  23 * struct xvip_composite_device - Xilinx Video IP device structure
  24 * @v4l2_dev: V4L2 device
  25 * @media_dev: media device
  26 * @dev: (OF) device
  27 * @notifier: V4L2 asynchronous subdevs notifier
  28 * @dmas: list of DMA channels at the pipeline output and input
  29 * @v4l2_caps: V4L2 capabilities of the whole device (see VIDIOC_QUERYCAP)
  30 * @lock: This is to ensure all dma path entities acquire same pipeline object
  31 */
  32struct xvip_composite_device {
  33        struct v4l2_device v4l2_dev;
  34        struct media_device media_dev;
  35        struct device *dev;
  36
  37        struct v4l2_async_notifier notifier;
  38
  39        struct list_head dmas;
  40        u32 v4l2_caps;
  41        struct mutex lock; /* lock to protect xvip pipeline instance */
  42};
  43
  44int xvip_graph_start_stop(struct xvip_composite_device *xdev, bool on);
  45
  46#endif /* __XILINX_VIPP_H__ */
  47