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bacnet-stack/ports/arduino_uno/main.c

95 lines
2.5 KiB
C

/**
* @file
* @author Miguel Fernandes <miguelandre.fernandes@gmail.com>
* @date 6 de Jun de 2013
* @brief BACnet/IP for Wiznet on Arduino-Uno
*
* This port is for BACnet/ip and uses part of the Arduino Ethernet
* library so it needs the stock Arduino Etherenet Shield
* (the one with the W5100 chip). The port was done by writting a C
* wrapper around the c++ Ethernet library and adapting the
* existing port for Atmega168 (mainly functions bip.c and bip-init.c)
* to use the wrapper functions. The port also needs Arduino core and
* Ethernet libraries to compile.
*/
#include <stdbool.h>
#include <stdint.h>
#include "datalink.h"
#include "npdu.h"
#include "handlers.h"
#include "txbuf.h"
#include "iam.h"
#include "device.h"
#include "av.h"
#include "uart.h"
#include "w5100Wrapper.h"
#include "Arduino.h"
#include <avr/io.h>
#define BAUD 9600
#include <util/setbaud.h>
/* From the WhoIs hander - performed by the DLMSTP module */
extern bool Send_I_Am_Flag;
/* local version override */
const char *BACnet_Version = "1.0";
static uint8_t Ethernet_MAC_Address[MAX_MAC_LEN] =
{ 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
uint8_t ipAddress[] = { 192, 168, 0, 185 };
uint8_t gateway[] = { 192, 168, 0, 1 };
uint8_t netmask[] = { 255, 255, 255, 0 };
FILE uart_output = FDEV_SETUP_STREAM(uart_putchar, NULL, _FDEV_SETUP_WRITE);
FILE uart_input = FDEV_SETUP_STREAM(NULL, uart_getchar, _FDEV_SETUP_READ);
FILE uart_io = FDEV_SETUP_STREAM(uart_putchar, uart_getchar, _FDEV_SETUP_RW);
/* For porting to IAR, see:
http://www.avrfreaks.net/wiki/index.php/Documentation:AVR_GCC/IarToAvrgcc*/
/* dummy function - so we can use default demo handlers */
bool dcc_communication_enabled(void)
{
return true;
}
void setup()
{
//INIT W5100
init_func(CW5100Class_new());
setMACAddress_func(CW5100Class_new(), Ethernet_MAC_Address);
setIPAddress_func(CW5100Class_new(), ipAddress);
setGatewayIp_func(CW5100Class_new(), gateway);
setSubnetMask_func(CW5100Class_new(), netmask);
uart_init();
stdout = &uart_output;
stdin = &uart_input;
stderr = &uart_output;
#ifdef DEBUG
fprintf(stderr, "Starting BACNET application..\n");
#endif
}
static uint8_t PDUBuffer[MAX_MPDU];
int main(void)
{
uint16_t pdu_len = 0;
BACNET_ADDRESS src; /* source address */
init();
setup();
datalink_init(NULL);
for (;;) {
/* other tasks */
/* BACnet handling */
pdu_len = datalink_receive(&src, &PDUBuffer[0], sizeof(PDUBuffer), 0);
if (pdu_len) {
npdu_handler(&src, &PDUBuffer[0], pdu_len);
}
}
}