Testimony
17e94092a1
* Add Raspberry Pi Pico port - Adds BACnet/IP with abstracted network layer - Adds BACnet MS/TP support using RS485/UART - Includes README with examples * Add Pico 2 MS/TP demo, CI, and docs
117 lines
3.0 KiB
C
117 lines
3.0 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2005 Steve Karg
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* Copyright (C) 2025 Testimony Adams <adamstestimony@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0-or-later WITH GCC-exception-2.0
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*
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*********************************************************************/
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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#include "bacnet/bacdcode.h"
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#include "bip.h"
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/** @file pico/bip-init.c Initializes BACnet/IP interface (Pico). */
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static bool BIP_Debug = false;
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/**
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* @brief Enabled debug printing of BACnet/IPv4
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*/
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void bip_debug_enable(void)
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{
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BIP_Debug = true;
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}
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/**
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* @brief Disable debug printing of BACnet/IPv4
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*/
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void bip_debug_disable(void)
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{
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BIP_Debug = false;
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}
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/* gets an IP address by name, where name can be a
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string that is an IP address in dotted form, or
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a name that is a domain name
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returns 0 if not found, or
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an IP address in network byte order */
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long bip_getaddrbyname(const char *host_name)
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{
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(void)host_name;
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return 0;
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}
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/** Gets the local IP address and local broadcast address from the system,
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* and saves it into the BACnet/IP data structures.
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*/
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void bip_set_interface(void)
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{
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uint8_t local_address[] = { 0, 0, 0, 0 };
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uint8_t broadcast_address[] = { 0, 0, 0, 0 };
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uint8_t netmask[] = { 0, 0, 0, 0 };
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uint8_t invertedNetmask[] = { 0, 0, 0, 0 };
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int i;
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/* Get network info from platform-specific function */
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if (!bip_get_local_network_info(local_address, netmask)) {
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return;
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}
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bip_set_addr(local_address);
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/* setup local broadcast address */
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for (i = 0; i < 4; i++) {
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invertedNetmask[i] = ~netmask[i];
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broadcast_address[i] = (local_address[i] | invertedNetmask[i]);
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}
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bip_set_broadcast_addr(broadcast_address);
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}
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/** Initialize the BACnet/IP services at the given interface.
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* @ingroup DLBIP
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* -# Gets the local IP address and local broadcast address from the system,
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* and saves it into the BACnet/IP data structures.
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* -# Opens a UDP socket
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* -# Configures the socket for sending and receiving
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* -# Configures the socket so it can send broadcasts
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* -# Binds the socket to the local IP address at the specified port for
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* BACnet/IP (by default, 0xBAC0 = 47808).
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*
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* @note For Linux, ifname is eth0, ath0, arc0, and others.
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*
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* @param port [in] UDP port to use for BACnet/IP
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* @return True if the socket is successfully opened for BACnet/IP,
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* else False if the socket functions fail.
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*/
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bool bip_init(uint16_t port)
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{
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/* Initialize the socket using platform-specific function */
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if (!bip_socket_init(port)) {
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return false;
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}
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bip_set_interface();
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bip_set_port(port);
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/* Mark socket as valid (0 is a valid socket ID for Pico) */
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bip_set_socket(0);
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return true;
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}
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/** Cleanup and close out the BACnet/IP services by closing the socket.
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* @ingroup DLBIP
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*/
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void bip_cleanup(void)
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{
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if (bip_valid()) {
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bip_socket_cleanup();
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}
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return;
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}
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