Steve Karg
93 lines
2.9 KiB
C
93 lines
2.9 KiB
C
/*
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* Copyright (C) 2020 Legrand North America, Inc.
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/random/random.h>
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#include <stdint.h>
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#include <stdlib.h>
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/* BACnet Stack defines - first */
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#include "bacnet/bacdef.h"
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/* BACnet Stack core API */
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#include "bacnet/version.h"
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#include "bacnet/basic/sys/mstimer.h"
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/* BACnet Stack basic device API - see bacnet_basic/device.c for details */
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#include "bacnet/basic/object/device.h"
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/* BACnet Stack basic objects - also enable in prj.conf */
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#include "bacnet/basic/object/ai.h"
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#if (BACNET_PROTOCOL_REVISION >= 17)
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#include "bacnet/basic/object/netport.h"
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#endif
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#include "bacnet_basic/bacnet_basic.h"
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/* Logging module registration is already done in ports/zephyr/main.c */
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#include <zephyr/logging/log.h>
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LOG_MODULE_DECLARE(bacnet, CONFIG_BACNETSTACK_LOG_LEVEL);
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static const uint32_t Device_Instance = 260123;
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static const uint32_t Sensor_Instance = 1;
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/* timer for Sensor Update Interval */
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static struct mstimer Sensor_Update_Timer;
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/**
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* @brief BACnet Project Initialization Handler
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* @param context [in] The context to pass to the callback function
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* @note This is called from the BACnet task
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*/
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static void BACnet_Smart_Sensor_Init_Handler(void *context)
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{
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(void)context;
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LOG_INF("BACnet Stack Initialized");
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/* initialize objects for this basic sample */
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Device_Init(NULL);
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Device_Set_Object_Instance_Number(Device_Instance);
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Analog_Input_Create(Sensor_Instance);
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Analog_Input_Name_Set(Sensor_Instance, "Sensor");
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Analog_Input_Present_Value_Set(Sensor_Instance, 25.0f);
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LOG_INF("BACnet Device ID: %u", Device_Object_Instance_Number());
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/* start the seconds cyclic timer */
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mstimer_set(&Sensor_Update_Timer, 1000);
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srand(sys_rand32_get());
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}
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/**
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* @brief BACnet Project Task Handler
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* @param context [in] The context to pass to the callback function
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* @note This is called from the BACnet task
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*/
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static void BACnet_Smart_Sensor_Task_Handler(void *context)
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{
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float temperature = 0.0f, change = 0.0f;
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(void)context;
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if (mstimer_expired(&Sensor_Update_Timer)) {
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mstimer_reset(&Sensor_Update_Timer);
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/* simulate a sensor reading, and update the BACnet object values */
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if (Analog_Input_Out_Of_Service(Sensor_Instance)) {
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return;
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}
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temperature = Analog_Input_Present_Value(Sensor_Instance);
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change = -1.0f+2.0f*((float)rand())/RAND_MAX;
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temperature += change;
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Analog_Input_Present_Value_Set(Sensor_Instance, temperature);
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}
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}
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int main(void)
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{
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LOG_INF("\n*** BACnet Profile B-SS Sample ***\n");
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LOG_INF("BACnet Stack Version " BACNET_VERSION_TEXT);
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LOG_INF("BACnet Stack Max APDU: %d", MAX_APDU);
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bacnet_basic_init_callback_set(BACnet_Smart_Sensor_Init_Handler, NULL);
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bacnet_basic_task_callback_set(BACnet_Smart_Sensor_Task_Handler, NULL);
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/* work happens in server module */
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for (;;) {
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k_sleep(K_MSEC(1000));
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}
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return 0;
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}
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