/****************************************************************************
 *
 *   Copyright (C) 2012 PX4 Development Team. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name PX4 nor the names of its contributors may be
 *    used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 ****************************************************************************/

#ifndef _DRV_UORB_H
#define _DRV_UORB_H

/**
 * @file uORB published object driver.
 */

#include <sys/types.h>
#include <sys/ioctl.h>
#include <stdint.h>

/* XXX for ORB_DECLARE used in many drivers */
#include "../modules/uORB/uORB.h"

/*
 * ioctl() definitions
 */

/** path to the uORB control device for pub/sub topics */
#define TOPIC_MASTER_DEVICE_PATH	"/obj/_obj_"

/** path to the uORB control device for parameter topics */
#define PARAM_MASTER_DEVICE_PATH	"/param/_param_"

/** maximum ogbject name length */
#define ORB_MAXNAME		32

#define _ORBIOCBASE		(0x2600)
#define _ORBIOC(_n)		(_IOC(_ORBIOCBASE, _n))

/*
 * IOCTLs for the uORB control device
 */

/** Advertise a new topic described by *(uorb_metadata *)arg */
#define ORBIOCADVERTISE		_ORBIOC(0)

/*
 * IOCTLs for individual topics.
 */

/** Fetch the time at which the topic was last updated into *(uint64_t *)arg */
#define ORBIOCLASTUPDATE	_ORBIOC(10)

/** Check whether the topic has been updated since it was last read, sets *(bool *)arg */
#define ORBIOCUPDATED		_ORBIOC(11)

/** Set the minimum interval at which the topic can be seen to be updated for this subscription */
#define ORBIOCSETINTERVAL	_ORBIOC(12)

/** Get the global advertiser handle for the topic */
#define ORBIOCGADVERTISER	_ORBIOC(13)

#endif /* _DRV_UORB_H */