Kari Argillander
cb243c36a8
* Change MIT license texts to SPDX-License-Identifier SPDX-License-Identifier is much easier to understand and grep than license text so use that instead. * Change GPL exception license texts to SPDX-License-Identifier SPDX-License-Identifier is much easier to understand and grep than license text so use that instead. * Change misc license texts to SPDX-License-Identifier There are some external code in repo which are not licenses as most of the stuff in this repo. We still want every file to have SPDX identifier to easily grep licenses. * Add currently used license files Even though Bacnet-Stack is using SPDX identifiers we still need to give those license files with source. For this reason add all license files to license/ folder. SPDX has also files which would make same thing but this is style which example Linux kernel is using and it is quite clear so I choose that one for now. I choosed not yet bring CC-PDDC as that is not right license for those files. --------- Co-authored-by: Kari Argillander <kari.argillander@fidelix.com>
148 lines
4.1 KiB
C
148 lines
4.1 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2007 Steve Karg <skarg@users.sourceforge.net>
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*
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* SPDX-License-Identifier: MIT
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*
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*********************************************************************/
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#include <stdbool.h>
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#include <stdint.h>
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#include "hardware.h"
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#include "timer.h"
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#include "rs485.h"
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#include "bacnet/datalink/datalink.h"
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#include "bacnet/npdu.h"
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#include "bacnet/dcc.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/iam.h"
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#include "bacnet/basic/object/device.h"
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#include "bacnet/basic/object/av.h"
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/* From the WhoIs hander - performed by the DLMSTP module */
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extern bool Send_I_Am_Flag;
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/* local version override */
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const char *BACnet_Version = "1.0";
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/* For porting to IAR, see:
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http://www.avrfreaks.net/wiki/index.php/Documentation:AVR_GCC/IarToAvrgcc*/
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/* dummy function - so we can use default demo handlers */
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bool dcc_communication_enabled(void)
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{
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return true;
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}
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static void init(void)
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{
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/* Initialize the Clock Prescaler for ATmega48/88/168 */
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/* The default CLKPSx bits are factory set to 0011 */
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/* Enbable the Clock Prescaler */
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CLKPR = _BV(CLKPCE);
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/* CLKPS3 CLKPS2 CLKPS1 CLKPS0 Clock Division Factor
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------ ------ ------ ------ ---------------------
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0 0 0 0 1
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0 0 0 1 2
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0 0 1 0 4
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0 0 1 1 8
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0 1 0 0 16
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0 1 0 1 32
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0 1 1 0 64
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0 1 1 1 128
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1 0 0 0 256
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1 x x x Reserved
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*/
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/* Set the CLKPS3..0 bits to Prescaler of 1 */
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CLKPR = 0;
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/* Initialize I/O ports */
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/* For Port DDRx (Data Direction) Input=0, Output=1 */
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/* For Port PORTx (Bit Value) TriState=0, High=1 */
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DDRB = 0;
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PORTB = 0;
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DDRC = 0;
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PORTC = 0;
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DDRD = 0;
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PORTD = 0;
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/* Configure the watchdog timer - Disabled for testing */
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BIT_CLEAR(MCUSR, WDRF);
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WDTCSR = 0;
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/* Configure Specialized Hardware */
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RS485_Initialize();
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/* Configure Timer0 for millisecond timer */
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Timer_Initialize();
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/* Enable global interrupts */
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__enable_interrupt();
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}
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static void task_milliseconds(void)
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{
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while (Timer_Milliseconds) {
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Timer_Milliseconds--;
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/* add other millisecond timer tasks here */
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}
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}
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static uint8_t Address_Switch;
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static void input_switch_read(void)
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{
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uint8_t value;
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static uint8_t old_value = 0;
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value = BITMASK_CHECK(PINC, 0x0F);
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value |= (BITMASK_CHECK(PINB, 0x07) << 4);
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if (value != old_value) {
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old_value = value;
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} else {
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if (old_value != Address_Switch) {
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Address_Switch = old_value;
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#if defined(BACDL_MSTP)
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dlmstp_set_mac_address(Address_Switch);
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#endif
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Device_Set_Object_Instance_Number(86000 + Address_Switch);
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Send_I_Am_Flag = true;
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}
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}
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}
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/** Static receive buffer, initialized with zeros by the C Library Startup Code. */
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static uint8_t PDUBuffer[MAX_MPDU + 16 /* Add a little safety margin to the buffer,
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* so that in the rare case, the message
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* would be filled up to MAX_MPDU and some
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* decoding functions would overrun, these
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* decoding functions will just end up in
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* a safe field of static zeros. */];
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/** Main */
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int main(void)
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{
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uint16_t pdu_len = 0;
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BACNET_ADDRESS src; /* source address */
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init();
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#if defined(BACDL_MSTP)
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RS485_Set_Baud_Rate(38400);
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dlmstp_set_max_master(127);
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dlmstp_set_max_info_frames(1);
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#endif
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datalink_init(NULL);
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for (;;) {
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input_switch_read();
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task_milliseconds();
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/* other tasks */
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/* BACnet handling */
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pdu_len = datalink_receive(&src, &PDUBuffer[0], MAX_MPDU, 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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}
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