LXR linux/drivers/staging/media/omap4iss/iss

   1/*
   2 * TI OMAP4 ISS V4L2 Driver - ISP IPIPE module
   3 *
   4 * Copyright (C) 2012 Texas Instruments, Inc.
   5 *
   6 * Author: Sergio Aguirre <sergio.a.aguirre@gmail.com>
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; either version 2 of the License, or
  11 * (at your option) any later version.
  12 */
  13
  14#ifndef OMAP4_ISS_IPIPE_H
  15#define OMAP4_ISS_IPIPE_H
  16
  17#include "iss_video.h"
  18
  19enum ipipe_input_entity {
  20        IPIPE_INPUT_NONE,
  21        IPIPE_INPUT_IPIPEIF,
  22};
  23
  24#define IPIPE_OUTPUT_VP                         BIT(0)
  25
  26/* Sink and source IPIPE pads */
  27#define IPIPE_PAD_SINK                          0
  28#define IPIPE_PAD_SOURCE_VP                     1
  29#define IPIPE_PADS_NUM                          2
  30
  31/*
  32 * struct iss_ipipe_device - Structure for the IPIPE module to store its own
  33 *                          information
  34 * @subdev: V4L2 subdevice
  35 * @pads: Sink and source media entity pads
  36 * @formats: Active video formats
  37 * @input: Active input
  38 * @output: Active outputs
  39 * @error: A hardware error occurred during capture
  40 * @state: Streaming state
  41 * @wait: Wait queue used to stop the module
  42 * @stopping: Stopping state
  43 */
  44struct iss_ipipe_device {
  45        struct v4l2_subdev subdev;
  46        struct media_pad pads[IPIPE_PADS_NUM];
  47        struct v4l2_mbus_framefmt formats[IPIPE_PADS_NUM];
  48
  49        enum ipipe_input_entity input;
  50        unsigned int output;
  51        unsigned int error;
  52
  53        enum iss_pipeline_stream_state state;
  54        wait_queue_head_t wait;
  55        atomic_t stopping;
  56};
  57
  58struct iss_device;
  59
  60int omap4iss_ipipe_register_entities(struct iss_ipipe_device *ipipe,
  61                                     struct v4l2_device *vdev);
  62void omap4iss_ipipe_unregister_entities(struct iss_ipipe_device *ipipe);
  63
  64int omap4iss_ipipe_init(struct iss_device *iss);
  65void omap4iss_ipipe_cleanup(struct iss_device *iss);
  66
  67#endif  /* OMAP4_ISS_IPIPE_H */
  68