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* TI OMAP4 ISS V4L2 Driver - ISP IPIPE module
* Copyright (C) 2012 Texas Instruments, Inc.
* Author: Sergio Aguirre <>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
#include "iss_video.h"
enum ipipe_input_entity {
/* Sink and source IPIPE pads */
#define IPIPE_PAD_SINK 0
#define IPIPE_PADS_NUM 2
* struct iss_ipipe_device - Structure for the IPIPE module to store its own
* information
* @subdev: V4L2 subdevice
* @pads: Sink and source media entity pads
* @formats: Active video formats
* @input: Active input
* @output: Active outputs
* @error: A hardware error occurred during capture
* @state: Streaming state
* @wait: Wait queue used to stop the module
* @stopping: Stopping state
struct iss_ipipe_device {
struct v4l2_subdev subdev;
struct media_pad pads[IPIPE_PADS_NUM];
struct v4l2_mbus_framefmt formats[IPIPE_PADS_NUM];
enum ipipe_input_entity input;
unsigned int output;
unsigned int error;
enum iss_pipeline_stream_state state;
wait_queue_head_t wait;
atomic_t stopping;
struct iss_device;
int omap4iss_ipipe_register_entities(struct iss_ipipe_device *ipipe,
struct v4l2_device *vdev);
void omap4iss_ipipe_unregister_entities(struct iss_ipipe_device *ipipe);
int omap4iss_ipipe_init(struct iss_device *iss);
void omap4iss_ipipe_cleanup(struct iss_device *iss);
#endif /* OMAP4_ISS_IPIPE_H */