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bacnet_stack/bacnet-stack/include/event.h
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2010-07-19 23:19:54 +00:00

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C

/*####COPYRIGHTBEGIN####
-------------------------------------------
Copyright (C) 2008 John Minack
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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
The Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA.
As a special exception, if other files instantiate templates or
use macros or inline functions from this file, or you compile
this file and link it with other works to produce a work based
on this file, this file does not by itself cause the resulting
work to be covered by the GNU General Public License. However
the source code for this file must still be made available in
accordance with section (3) of the GNU General Public License.
This exception does not invalidate any other reasons why a work
based on this file might be covered by the GNU General Public
License.
-------------------------------------------
####COPYRIGHTEND####*/
#ifndef BACNET_EVENT_H_
#define BACNET_EVENT_H_
#include "bacenum.h"
#include <stdint.h>
#include <stdbool.h>
#include "bacapp.h"
#include "timestamp.h"
#include "bacpropstates.h"
#include "bacdevobjpropref.h"
typedef enum {
CHANGE_OF_VALUE_BITS,
CHANGE_OF_VALUE_REAL
} CHANGE_OF_VALUE_TYPE;
/*
** Based on UnconfirmedEventNotification-Request
*/
typedef struct BACnet_Event_Notification_Data {
uint32_t processIdentifier;
BACNET_OBJECT_ID initiatingObjectIdentifier;
BACNET_OBJECT_ID eventObjectIdentifier;
BACNET_TIMESTAMP timeStamp;
uint32_t notificationClass;
uint8_t priority;
BACNET_EVENT_TYPE eventType;
BACNET_CHARACTER_STRING *messageText; /* OPTIONAL - Set to NULL if not being used */
BACNET_NOTIFY_TYPE notifyType;
bool ackRequired;
BACNET_EVENT_STATE fromState;
BACNET_EVENT_STATE toState;
/*
** Each of these structures in the union maps to a particular eventtype
** Based on BACnetNotificationParameters
*/
union {
/*
** EVENT_CHANGE_OF_BITSTRING
*/
struct {
BACNET_BIT_STRING referencedBitString;
BACNET_BIT_STRING statusFlags;
} changeOfBitstring;
/*
** EVENT_CHANGE_OF_STATE
*/
struct {
BACNET_PROPERTY_STATE newState;
BACNET_BIT_STRING statusFlags;
} changeOfState;
/*
** EVENT_CHANGE_OF_VALUE
*/
struct {
union {
BACNET_BIT_STRING changedBits;
float changeValue;
} newValue;
CHANGE_OF_VALUE_TYPE tag;
BACNET_BIT_STRING statusFlags;
} changeOfValue;
/*
** EVENT_COMMAND_FAILURE
**
** Not Supported!
*/
/*
** EVENT_FLOATING_LIMIT
*/
struct {
float referenceValue;
BACNET_BIT_STRING statusFlags;
float setPointValue;
float errorLimit;
} floatingLimit;
/*
** EVENT_OUT_OF_RANGE
*/
struct {
float exceedingValue;
BACNET_BIT_STRING statusFlags;
float deadband;
float exceededLimit;
} outOfRange;
/*
** EVENT_CHANGE_OF_LIFE_SAFETY
*/
struct {
BACNET_LIFE_SAFETY_STATE newState;
BACNET_LIFE_SAFETY_MODE newMode;
BACNET_BIT_STRING statusFlags;
BACNET_LIFE_SAFETY_OPERATION operationExpected;
} changeOfLifeSafety;
/*
** EVENT_EXTENDED
**
** Not Supported!
*/
/*
** EVENT_BUFFER_READY
*/
struct {
BACNET_DEVICE_OBJECT_PROPERTY_REFERENCE bufferProperty;
uint32_t previousNotification;
uint32_t currentNotification;
} bufferReady;
/*
** EVENT_UNSIGNED_RANGE
*/
struct {
uint32_t exceedingValue;
BACNET_BIT_STRING statusFlags;
uint32_t exceededLimit;
} unsignedRange;
} notificationParams;
} BACNET_EVENT_NOTIFICATION_DATA;
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/***************************************************
**
** Creates a Confirmed Event Notification APDU
**
****************************************************/
int cevent_notify_encode_apdu(
uint8_t * apdu,
uint8_t invoke_id,
BACNET_EVENT_NOTIFICATION_DATA * data);
/***************************************************
**
** Creates an Unconfirmed Event Notification APDU
**
****************************************************/
int uevent_notify_encode_apdu(
uint8_t * apdu,
BACNET_EVENT_NOTIFICATION_DATA * data);
/***************************************************
**
** Encodes the service data part of Event Notification
**
****************************************************/
int event_notify_encode_service_request(
uint8_t * apdu,
BACNET_EVENT_NOTIFICATION_DATA * data);
/***************************************************
**
** Decodes the service data part of Event Notification
**
****************************************************/
int event_notify_decode_service_request(
uint8_t * apdu,
unsigned apdu_len,
BACNET_EVENT_NOTIFICATION_DATA * data);
/***************************************************
**
** Sends an Unconfirmed Event Notifcation to a dest
**
****************************************************/
int uevent_notify_send(
uint8_t * buffer,
BACNET_EVENT_NOTIFICATION_DATA * data,
BACNET_ADDRESS * dest);
#ifdef __cplusplus
}
#endif /* __cplusplus */
/** @defgroup ALMEVNT Alarm and Event Management BIBBs
* These BIBBs prescribe the BACnet capabilities required to interoperably
* perform the alarm and event management functions enumerated in 22.2.1.2
* for the BACnet devices defined therein.
*//** @defgroup EVNOTFCN Alarm and Event-Notification (AE-N)
* @ingroup ALMEVNT
* 13.6 ConfirmedCOVNotification Service <br>
* The ConfirmedCOVNotification service is used to notify subscribers about
* changes that may have occurred to the properties of a particular object.
* Subscriptions for COV notifications are made using the SubscribeCOV service
* or the SubscribeCOVProperty service.
*
* 13.7 UnconfirmedCOVNotification Service <br>
* The UnconfirmedCOVNotification Service is used to notify subscribers about
* changes that may have occurred to the properties of a particular object,
* or to distribute object properties of wide interest (such as outside air
* conditions) to many devices simultaneously without a subscription.
* Subscriptions for COV notifications are made using the SubscribeCOV service.
* For unsubscribed notifications, the algorithm for determining when to issue
* this service is a local matter and may be based on a change of value,
* periodic updating, or some other criteria.
*//** @defgroup ALMACK Alarm and Event-ACK (AE-ACK)
* @ingroup ALMEVNT
* 13.5 AcknowledgeAlarm Service <br>
* In some systems a device may need to know that an operator has seen the alarm
* notification. The AcknowledgeAlarm service is used by a notification-client
* to acknowledge that a human operator has seen and responded to an event
* notification with 'AckRequired' = TRUE. Ensuring that the acknowledgment
* actually comes from a person with appropriate authority is a local matter.
* This service may be used in conjunction with either the
* ConfirmedEventNotification service or the UnconfirmedEventNotification service.
*/
#endif /* BACNET_EVENT_H_ */