Kato Gangstad
82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/**
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* @file
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* @brief BACnet MS/TP datalink environment setup for the PlatformIO ESP32 port
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* @author Kato Gangstad
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*/
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#include "dlenv.h"
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#include "bacnet/datalink/dlmstp.h"
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#include "rs485.h"
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volatile struct mstp_port_struct_t MSTP_Port;
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static struct dlmstp_user_data_t MSTP_User_Data;
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static uint8_t Input_Buffer[DLMSTP_MPDU_MAX];
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static uint8_t Output_Buffer[DLMSTP_MPDU_MAX];
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static struct dlmstp_rs485_driver RS485_Driver = {
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.init = rs485_init,
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.send = rs485_bytes_send,
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.read = rs485_byte_available,
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.transmitting = rs485_rts_enabled,
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.baud_rate = rs485_baud_rate,
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.baud_rate_set = rs485_baud_rate_set,
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.silence_milliseconds = rs485_silence_milliseconds,
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.silence_reset = rs485_silence_reset
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};
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/**
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* @brief Initialize the BACnet MS/TP datalink environment
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* @param mac_address local MS/TP MAC address
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* @return true if the datalink initialized successfully
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*/
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bool m5_dlenv_init(uint8_t mac_address)
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{
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RS485_Driver.init();
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MSTP_Port.Nmax_info_frames = BACNET_MSTP_MAX_INFO_FRAMES;
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MSTP_Port.Nmax_master = BACNET_MSTP_MAX_MASTER;
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MSTP_Port.InputBuffer = Input_Buffer;
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MSTP_Port.InputBufferSize = sizeof(Input_Buffer);
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MSTP_Port.OutputBuffer = Output_Buffer;
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MSTP_Port.OutputBufferSize = sizeof(Output_Buffer);
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MSTP_Port.ZeroConfigEnabled = false;
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MSTP_Port.SlaveNodeEnabled = false;
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MSTP_Port.CheckAutoBaud = false;
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MSTP_Zero_Config_UUID_Init((struct mstp_port_struct_t *)&MSTP_Port);
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MSTP_User_Data.RS485_Driver = &RS485_Driver;
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MSTP_Port.UserData = &MSTP_User_Data;
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if (!dlmstp_init((char *)&MSTP_Port)) {
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return false;
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}
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dlmstp_set_mac_address(mac_address);
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dlmstp_set_baud_rate(RS485_BAUD_RATE);
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dlmstp_set_max_master(BACNET_MSTP_MAX_MASTER);
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dlmstp_set_max_info_frames(BACNET_MSTP_MAX_INFO_FRAMES);
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return true;
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}
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/**
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* @brief Run any periodic MS/TP maintenance hooks
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* @param seconds elapsed seconds since the last call
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*/
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void dlenv_maintenance_timer(uint16_t seconds)
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{
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(void)seconds;
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}
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/**
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* @brief Shut down the MS/TP datalink environment
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*/
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void dlenv_cleanup(void)
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{
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}
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