mirror of
https://github.com/stargieg/bacnet-stack
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159 lines
6.3 KiB
C
159 lines
6.3 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2012 Steve Karg <skarg@users.sourceforge.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*********************************************************************/
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#ifndef BACDEF_H
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#define BACDEF_H
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#include <stddef.h>
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#include <stdint.h>
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#include "bacenum.h"
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#include "config.h"
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#if defined(_MSC_VER)
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/* Silence the warnings about unsafe versions of library functions */
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/* as we need to keep the code portable */
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#pragma warning( disable : 4996)
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#endif
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/* This stack implements this version of BACnet */
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#define BACNET_PROTOCOL_VERSION 1
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/* Although this stack can implement a later revision,
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* sometimes another revision is desired */
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#ifndef BACNET_PROTOCOL_REVISION
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#define BACNET_PROTOCOL_REVISION 12
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#endif
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/* there are a few dependencies on the BACnet Protocol-Revision */
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#if (BACNET_PROTOCOL_REVISION == 0)
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#define MAX_ASHRAE_OBJECT_TYPE 18
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#define MAX_BACNET_SERVICES_SUPPORTED 35
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#elif (BACNET_PROTOCOL_REVISION == 1)
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#define MAX_ASHRAE_OBJECT_TYPE 21
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#define MAX_BACNET_SERVICES_SUPPORTED 37
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#elif (BACNET_PROTOCOL_REVISION == 2)
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/* from 135-2001 version of the BACnet Standard */
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#define MAX_ASHRAE_OBJECT_TYPE 23
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#define MAX_BACNET_SERVICES_SUPPORTED 40
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#elif (BACNET_PROTOCOL_REVISION == 3)
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#define MAX_ASHRAE_OBJECT_TYPE 23
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#define MAX_BACNET_SERVICES_SUPPORTED 40
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#elif (BACNET_PROTOCOL_REVISION == 4)
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/* from 135-2004 version of the BACnet Standard */
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#define MAX_ASHRAE_OBJECT_TYPE 25
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#define MAX_BACNET_SERVICES_SUPPORTED 40
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#elif (BACNET_PROTOCOL_REVISION == 5)
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#define MAX_ASHRAE_OBJECT_TYPE 30
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#define MAX_BACNET_SERVICES_SUPPORTED 40
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#elif (BACNET_PROTOCOL_REVISION == 6)
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#define MAX_ASHRAE_OBJECT_TYPE 31
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#define MAX_BACNET_SERVICES_SUPPORTED 40
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#elif (BACNET_PROTOCOL_REVISION == 7)
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#define MAX_ASHRAE_OBJECT_TYPE 31
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#define MAX_BACNET_SERVICES_SUPPORTED 40
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#elif (BACNET_PROTOCOL_REVISION == 8)
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#define MAX_ASHRAE_OBJECT_TYPE 31
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#define MAX_BACNET_SERVICES_SUPPORTED 40
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#elif (BACNET_PROTOCOL_REVISION == 9)
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/* from 135-2008 version of the BACnet Standard */
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#define MAX_ASHRAE_OBJECT_TYPE 38
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#define MAX_BACNET_SERVICES_SUPPORTED 40
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#elif (BACNET_PROTOCOL_REVISION == 10)
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#define MAX_ASHRAE_OBJECT_TYPE 51
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#define MAX_BACNET_SERVICES_SUPPORTED 40
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#elif (BACNET_PROTOCOL_REVISION == 11)
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#define MAX_ASHRAE_OBJECT_TYPE 51
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#define MAX_BACNET_SERVICES_SUPPORTED 40
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#elif (BACNET_PROTOCOL_REVISION == 12)
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/* from 135-2010 version of the BACnet Standard */
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#define MAX_ASHRAE_OBJECT_TYPE 51
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#define MAX_BACNET_SERVICES_SUPPORTED 40
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#elif (BACNET_PROTOCOL_REVISION == 13)
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#define MAX_ASHRAE_OBJECT_TYPE 53
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#define MAX_BACNET_SERVICES_SUPPORTED 40
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#elif (BACNET_PROTOCOL_REVISION == 14)
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/* from 135-2012 version of the BACnet Standard */
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#define MAX_ASHRAE_OBJECT_TYPE 55
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#define MAX_BACNET_SERVICES_SUPPORTED 41
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#else
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#error MAX_ASHRAE_OBJECT_TYPE and MAX_BACNET_SERVICES_SUPPORTED not defined!
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#endif
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/* largest BACnet Instance Number */
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/* Also used as a device instance number wildcard address */
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#define BACNET_MAX_INSTANCE (0x3FFFFF)
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#define BACNET_INSTANCE_BITS 22
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/* large BACnet Object Type */
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#define BACNET_MAX_OBJECT (0x3FF)
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/* Array index 0=size of array, n=array element n, MAX=all array elements */
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/* 32-bit MAX, to use with uint32_t */
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#define BACNET_ARRAY_ALL 0xFFFFFFFFU
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/* Priority Array for commandable objects */
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#define BACNET_NO_PRIORITY 0
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#define BACNET_MIN_PRIORITY 1
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#define BACNET_MAX_PRIORITY 16
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#define BACNET_BROADCAST_NETWORK (0xFFFF)
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/* Any size MAC address should be allowed which is less than or
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equal to 7 bytes. The IPv6 addresses are planned to be handled
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outside this area. */
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/* FIXME: mac[] only needs to be as big as our local datalink MAC */
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#define MAX_MAC_LEN 7
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struct BACnet_Device_Address {
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/* mac_len = 0 is a broadcast address */
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uint8_t mac_len;
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/* note: MAC for IP addresses uses 4 bytes for addr, 2 bytes for port */
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/* use de/encode_unsigned32/16 for re/storing the IP address */
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uint8_t mac[MAX_MAC_LEN];
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/* DNET,DLEN,DADR or SNET,SLEN,SADR */
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/* the following are used if the device is behind a router */
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/* net = 0 indicates local */
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uint16_t net; /* BACnet network number */
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/* LEN = 0 denotes broadcast MAC ADR and ADR field is absent */
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/* LEN > 0 specifies length of ADR field */
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uint8_t len; /* length of MAC address */
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uint8_t adr[MAX_MAC_LEN]; /* hwaddr (MAC) address */
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};
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typedef struct BACnet_Device_Address BACNET_ADDRESS;
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/* note: with microprocessors having lots more code space than memory,
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it might be better to have a packed encoding with a library to
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easily access the data. */
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typedef struct BACnet_Object_Id {
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uint16_t type;
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uint32_t instance;
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} BACNET_OBJECT_ID;
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#define MAX_NPDU (1+1+2+1+MAX_MAC_LEN+2+1+MAX_MAC_LEN+1+1+2)
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#define MAX_PDU (MAX_APDU + MAX_NPDU)
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#define BACNET_ID_VALUE(bacnet_object_instance, bacnet_object_type) ((((bacnet_object_type) & BACNET_MAX_OBJECT) << BACNET_INSTANCE_BITS) | ((bacnet_object_instance) & BACNET_MAX_INSTANCE))
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#define BACNET_INSTANCE(bacnet_object_id_num) ((bacnet_object_id_num)&BACNET_MAX_INSTANCE)
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#define BACNET_TYPE(bacnet_object_id_num) (((bacnet_object_id_num) >> BACNET_INSTANCE_BITS ) & BACNET_MAX_OBJECT)
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#define BACNET_STATUS_OK (0)
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#define BACNET_STATUS_ERROR (-1)
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#define BACNET_STATUS_ABORT (-2)
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#define BACNET_STATUS_REJECT (-3)
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#endif
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