Files
bacnet_stack/ports/arduino_uno/datalink.h
T
Kari Argillander 98e8cf2147 Make it possible to select multiple datalinks (#717)
* datalink/dlenv: Rename addr -> addr6 when ipv6

If we are building this file with BACDL_BIP6 and BACDL_BIP enabled we
get two definitions for addr. For this reason rename other addr6 so
there will be no conflict.

* config: Reorder MAX_APDU selection so biggest is first

When multiple datalinks are selected we should guess biggest MAX_APDU.
To do that we need to order selection based on biggest to lowest. With
this change MAX_APDU should be more correct most of the times and user
does not need to specifie that by hand.

* Make it possible to select multiple datalinks

Before we had option to select all datalinks. Many times you however do
not need all datalinks but just some. Change logic so that it does not
matter if user selects multiple datalinks. Now user just select what
they want and everything should just work.

* dlenv: Move variables start of function

Because we use C89 we need to move variables start of block.

* datalink: Hide strings.h because Windows

Windows does not support strings.h. Hide it from it.

---------

Co-authored-by: Kari Argillander <kari.argillander@fidelix.com>
2024-09-04 13:32:31 -05:00

130 lines
4.6 KiB
C

/**************************************************************************
*
* Copyright (C) 2012 Steve Karg <skarg@users.sourceforge.net>
*
* SPDX-License-Identifier: MIT
*
*********************************************************************/
#ifndef DATALINK_H
#define DATALINK_H
#include "bacnet/config.h"
#include "bacnet/bacdef.h"
#if defined(BACDL_ETHERNET)
#include "bacnet/datalink/ethernet.h"
#endif
#if defined(BACDL_ARCNET)
#include "bacnet/datalink/arcnet.h"
#endif
#if defined(BACDL_MSTP)
#include "bacnet/datalink/dlmstp.h"
#endif
#if defined(BACDL_BIP)
#include "bacnet/datalink/bip.h"
#include "bvlc-arduino.h"
#endif
#if defined(BACDL_BIP6)
#error currently not implemented for Arduino
#endif
#if defined(BACDL_ETHERNET) && !defined(BACDL_MULTIPLE)
#define datalink_init ethernet_init
#define datalink_send_pdu ethernet_send_pdu
#define datalink_receive ethernet_receive
#define datalink_cleanup ethernet_cleanup
#define datalink_get_broadcast_address ethernet_get_broadcast_address
#define datalink_get_my_address ethernet_get_my_address
#elif defined(BACDL_ARCNET) && !defined(BACDL_MULTIPLE)
#define datalink_init arcnet_init
#define datalink_send_pdu arcnet_send_pdu
#define datalink_receive arcnet_receive
#define datalink_cleanup arcnet_cleanup
#define datalink_get_broadcast_address arcnet_get_broadcast_address
#define datalink_get_my_address arcnet_get_my_address
#elif defined(BACDL_MSTP) && !defined(BACDL_MULTIPLE)
#define datalink_init dlmstp_init
#define datalink_send_pdu dlmstp_send_pdu
#define datalink_receive dlmstp_receive
#define datalink_cleanup dlmstp_cleanup
#define datalink_get_broadcast_address dlmstp_get_broadcast_address
#define datalink_get_my_address dlmstp_get_my_address
#elif defined(BACDL_BIP) && !defined(BACDL_MULTIPLE)
#define datalink_init bip_init
// #if defined(BBMD_ENABLED) && BBMD_ENABLED
// #define datalink_send_pdu bvlc_send_pdu
// #define datalink_receive bvlc_receive
// #else
#define datalink_send_pdu bip_send_pdu
#define datalink_receive bip_receive
// #endif
#define datalink_cleanup bip_cleanup
#define datalink_get_broadcast_address bip_get_broadcast_address
#ifdef BAC_ROUTING
extern void routed_get_my_address(BACNET_ADDRESS *my_address);
#define datalink_get_my_address routed_get_my_address
#else
#define datalink_get_my_address bip_get_my_address
#endif
#else /* Ie, BACDL_MULTIPLE */
#include "bacnet/npdu.h"
#define MAX_HEADER (8)
#define MAX_MPDU (MAX_HEADER + MAX_PDU)
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
int datalink_send_pdu(
BACNET_ADDRESS *dest,
BACNET_NPDU_DATA *npdu_data,
uint8_t *pdu,
unsigned pdu_len);
extern uint16_t datalink_receive(
BACNET_ADDRESS *src, uint8_t *pdu, uint16_t max_pdu, unsigned timeout);
extern void datalink_cleanup(void);
extern void datalink_get_broadcast_address(BACNET_ADDRESS *dest);
extern void datalink_get_my_address(BACNET_ADDRESS *my_address);
extern void datalink_set_interface(char *ifname);
extern void datalink_set(char *datalink_string);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
/** @defgroup DataLink The BACnet Network (DataLink) Layer
* <b>6 THE NETWORK LAYER </b><br>
* The purpose of the BACnet network layer is to provide the means by which
* messages can be relayed from one BACnet network to another, regardless of
* the BACnet data link technology in use on that network. Whereas the data
* link layer provides the capability to address messages to a single device
* or broadcast them to all devices on the local network, the network layer
* allows messages to be directed to a single remote device, broadcast on a
* remote network, or broadcast globally to all devices on all networks.
* A BACnet Device is uniquely located by a network number and a MAC address.
*
* Each client or server application must define exactly one of these
* DataLink settings, which will control which parts of the code will be built:
* - BACDL_ETHERNET -- for Clause 7 ISO 8802-3 ("Ethernet") LAN
* - BACDL_ARCNET -- for Clause 8 ARCNET LAN
* - BACDL_MSTP -- for Clause 9 MASTER-SLAVE/TOKEN PASSING (MS/TP) LAN
* - BACDL_BIP -- for ANNEX J - BACnet/IP
* - BACDL_ALL -- Unspecified for the build, so the transport can be
* chosen at runtime from among these choices.
* - Clause 10 POINT-TO-POINT (PTP) and Clause 11 EIA/CEA-709.1 ("LonTalk") LAN
* are not currently supported by this project.
*/
/** @defgroup DLTemplates DataLink Template Functions
* @ingroup DataLink
* Most of the functions in this group are function templates which are assigned
* to a specific DataLink network layer implementation either at compile time or
* at runtime.
*/
#endif