Steve Karg
ef762118a6
* Create common DLMSTP using core MSTP FSM in STM32F4xx example * add openocd debug launcher under vscode in STM32F4xx example * Add generic property list member checking for write property members of network port object in STM32F4xx example
111 lines
4.1 KiB
C
111 lines
4.1 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2011 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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*********************************************************************/
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#include <stdint.h>
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#include <stdbool.h>
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/* hardware layer includes */
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#include "bacnet/basic/sys/mstimer.h"
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#include "rs485.h"
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/* BACnet Stack includes */
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#include "bacnet/datalink/datalink.h"
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#include "bacnet/npdu.h"
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#include "bacnet/basic/services.h"
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#include "bacnet/basic/services.h"
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#include "bacnet/basic/tsm/tsm.h"
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#include "bacnet/dcc.h"
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#include "bacnet/iam.h"
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/* BACnet objects */
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#include "bacnet/basic/object/device.h"
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#include "bacnet/basic/object/bo.h"
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/* me */
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#include "bacnet.h"
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/* timer for device communications control */
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static struct mstimer DCC_Timer;
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#define DCC_CYCLE_SECONDS 1
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/* Device ID to track changes */
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static uint32_t Device_ID = 0xFFFFFFFF;
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/**
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* @brief Initialize the BACnet device object, the service handlers, and timers
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*/
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void bacnet_init(void)
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{
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/* initialize objects */
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Device_Init(NULL);
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/* set up our confirmed service unrecognized service handler - required! */
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apdu_set_unrecognized_service_handler_handler(handler_unrecognized_service);
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/* we need to handle who-is to support dynamic device binding */
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apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_IS, handler_who_is);
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apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_HAS, handler_who_has);
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/* Set the handlers for any confirmed services that we support. */
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/* We must implement read property - it's required! */
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apdu_set_confirmed_handler(
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SERVICE_CONFIRMED_READ_PROPERTY, handler_read_property);
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apdu_set_confirmed_handler(
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SERVICE_CONFIRMED_READ_PROP_MULTIPLE, handler_read_property_multiple);
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apdu_set_confirmed_handler(
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SERVICE_CONFIRMED_REINITIALIZE_DEVICE, handler_reinitialize_device);
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apdu_set_confirmed_handler(
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SERVICE_CONFIRMED_WRITE_PROPERTY, handler_write_property);
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/* handle communication so we can shutup when asked */
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apdu_set_confirmed_handler(SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL,
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handler_device_communication_control);
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/* start the cyclic 1 second timer for DCC */
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mstimer_set(&DCC_Timer, DCC_CYCLE_SECONDS * 1000);
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}
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/* local buffer for incoming PDUs to process */
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static uint8_t PDUBuffer[MAX_MPDU];
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/**
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* @brief non-blocking BACnet task
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*/
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void bacnet_task(void)
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{
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bool hello_world = false;
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uint16_t pdu_len = 0;
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BACNET_ADDRESS src = { 0 };
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/* hello, World! */
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if (Device_ID != Device_Object_Instance_Number()) {
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Device_ID = Device_Object_Instance_Number();
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hello_world = true;
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}
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if (hello_world) {
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Send_I_Am(&Handler_Transmit_Buffer[0]);
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}
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/* handle the communication timer */
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if (mstimer_expired(&DCC_Timer)) {
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mstimer_reset(&DCC_Timer);
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dcc_timer_seconds(DCC_CYCLE_SECONDS);
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}
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/* handle the messaging */
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pdu_len = datalink_receive(&src, &PDUBuffer[0], sizeof(PDUBuffer), 0);
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if (pdu_len) {
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npdu_handler(&src, &PDUBuffer[0], pdu_len);
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}
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}
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