void main(
void)
{
RCONbits.NOT_POR = 1;
RCONbits.NOT_RI = 1;
Hardware_Initialize();
Initialize_Variables();
/* initialize BACnet Data Link Layer */
dlmstp_set_my_address(42);
dlmstp_set_max_info_frames(1);
dlmstp_set_max_master(127);
RS485_Set_Baud_Rate(38400);
dlmstp_init();
/* Handle anything that needs to be done on powerup */
/* Greet the BACnet world! */
Send_I_Am(&Handler_Transmit_Buffer[0]);
/* Main loop */
while (TRUE) {
RESTART_WDT();
dlmstp_task();
MainTasks();
Global_Int(INT_ENABLED);
ENABLE_TIMER4_INT();
}
}
void dlmstp_reinit(
void)
{
RS485_Reinit();
dlmstp_set_my_address(DEFAULT_MAC_ADDRESS);
dlmstp_set_max_info_frames(DEFAULT_MAX_INFO_FRAMES);
dlmstp_set_max_master(DEFAULT_MAX_MASTER);
}
int main(
int argc,
char *argv[])
{
BACNET_ADDRESS src = { 0 }; /* address where message came from */
uint16_t pdu_len = 0;
unsigned timeout = 100; /* milliseconds */
(void) argc;
(void) argv;
Device_Set_Object_Instance_Number(126);
Init_Service_Handlers();
RTOS_Initialize();
/* init the physical layer */
#ifdef BACDL_MSTP
dlmstp_set_my_address(0x05);
#endif
datalink_init(NULL);
Send_I_Am(&Handler_Transmit_Buffer[0]);
/* loop forever */
for (;;) {
/* input */
/* returns 0 bytes on timeout */
pdu_len = datalink_receive(&src, &Rx_Buf[0], MAX_MPDU, timeout);
/* process */
if (pdu_len) {
npdu_handler(&src, &Rx_Buf[0], pdu_len);
}
/* output */
/* blink LEDs, Turn on or off outputs, etc */
}
}
bool dlmstp_init(
char *ifname)
{
unsigned long hThread = 0;
int rv = 0;
/* initialize packet queue */
Receive_Packet.ready = false;
Receive_Packet.pdu_len = 0;
rv = pthread_cond_init(&Receive_Packet_Flag, NULL);
if (rv == -1) {
fprintf(stderr,
"MS/TP Interface: %s\n cannot allocate PThread Condition.\n",
ifname);
exit(1);
}
rv = pthread_cond_init(&Received_Frame_Flag, NULL);
if (rv == -1) {
fprintf(stderr,
"MS/TP Interface: %s\n cannot allocate PThread Condition.\n",
ifname);
exit(1);
}
rv = pthread_mutex_init(&Receive_Packet_Mutex, NULL);
if (rv == -1) {
fprintf(stderr,
"MS/TP Interface: %s\n cannot allocate PThread Mutex.\n", ifname);
exit(1);
}
rv = pthread_mutex_init(&Received_Frame_Mutex, NULL);
if (rv == -1) {
fprintf(stderr,
"MS/TP Interface: %s\n cannot allocate PThread Mutex.\n", ifname);
exit(1);
}
/* initialize hardware */
if (ifname) {
RS485_Set_Interface(ifname);
#if PRINT_ENABLED
fprintf(stderr, "MS/TP Interface: %s\n", ifname);
#endif
}
RS485_Initialize();
MSTP_Port.InputBuffer = &RxBuffer[0];
MSTP_Port.InputBufferSize = sizeof(RxBuffer);
MSTP_Port.OutputBuffer = &TxBuffer[0];
MSTP_Port.OutputBufferSize = sizeof(TxBuffer);
MSTP_Port.SilenceTimer = Timer_Silence;
MSTP_Port.SilenceTimerReset = Timer_Silence_Reset;
MSTP_Init(&MSTP_Port);
#if 0
uint8_t data;
/* FIXME: implement your data storage */
data = 64; /* I2C_Read_Byte(
EEPROM_DEVICE_ADDRESS,
EEPROM_MSTP_MAC_ADDR); */
if (data <= 127)
MSTP_Port.This_Station = data;
else
dlmstp_set_my_address(DEFAULT_MAC_ADDRESS);
/* FIXME: implement your data storage */
data = 127; /* I2C_Read_Byte(
EEPROM_DEVICE_ADDRESS,
EEPROM_MSTP_MAX_MASTER_ADDR); */
if ((data <= 127) && (data >= MSTP_Port.This_Station))
MSTP_Port.Nmax_master = data;
else
dlmstp_set_max_master(DEFAULT_MAX_MASTER);
/* FIXME: implement your data storage */
data = 1;
/* I2C_Read_Byte(
EEPROM_DEVICE_ADDRESS,
EEPROM_MSTP_MAX_INFO_FRAMES_ADDR); */
if (data >= 1)
MSTP_Port.Nmax_info_frames = data;
else
dlmstp_set_max_info_frames(DEFAULT_MAX_INFO_FRAMES);
#endif
#if PRINT_ENABLED
fprintf(stderr, "MS/TP MAC: %02X\n", MSTP_Port.This_Station);
fprintf(stderr, "MS/TP Max_Master: %02X\n", MSTP_Port.Nmax_master);
fprintf(stderr, "MS/TP Max_Info_Frames: %u\n", MSTP_Port.Nmax_info_frames);
#endif
/* start the threads */
rv = pthread_create(&hThread, NULL, dlmstp_milliseconds_task, NULL);
if (rv != 0) {
fprintf(stderr, "Failed to start timer task\n");
}
rv = pthread_create(&hThread, NULL, dlmstp_receive_fsm_task, NULL);
if (rv != 0) {
fprintf(stderr, "Failed to start recive FSM task\n");
}
rv = pthread_create(&hThread, NULL, dlmstp_master_fsm_task, NULL);
if (rv != 0) {
fprintf(stderr, "Failed to start Master Node FSM task\n");
}
return true;
}
bool dlmstp_init(
char *ifname)
{
unsigned long hThread = 0;
uint32_t arg_value = 0;
TIMECAPS tc;
/* initialize packet queue */
Receive_Packet.ready = false;
Receive_Packet.pdu_len = 0;
Receive_Packet_Flag = CreateSemaphore(NULL, 0, 1, "dlmstpReceivePacket");
if (Receive_Packet_Flag == NULL)
exit(1);
Received_Frame_Flag = CreateSemaphore(NULL, 0, 1, "dlsmtpReceiveFrame");
if (Received_Frame_Flag == NULL) {
CloseHandle(Receive_Packet_Flag);
exit(1);
}
/* initialize hardware */
/* initialize hardware */
if (ifname) {
RS485_Set_Interface(ifname);
#if PRINT_ENABLED
fprintf(stderr, "MS/TP Interface: %s\n", ifname);
#endif
}
RS485_Initialize();
MSTP_Port.InputBuffer = &RxBuffer[0];
MSTP_Port.InputBufferSize = sizeof(RxBuffer);
MSTP_Port.OutputBuffer = &TxBuffer[0];
MSTP_Port.OutputBufferSize = sizeof(TxBuffer);
MSTP_Port.SilenceTimer = Timer_Silence;
MSTP_Port.SilenceTimerReset = Timer_Silence_Reset;
MSTP_Init(&MSTP_Port);
#if 0
uint8_t data;
/* FIXME: implement your data storage */
data = 64; /* I2C_Read_Byte(
EEPROM_DEVICE_ADDRESS,
EEPROM_MSTP_MAC_ADDR); */
if (data <= 127)
MSTP_Port.This_Station = data;
else
dlmstp_set_my_address(DEFAULT_MAC_ADDRESS);
/* FIXME: implement your data storage */
data = 127; /* I2C_Read_Byte(
EEPROM_DEVICE_ADDRESS,
EEPROM_MSTP_MAX_MASTER_ADDR); */
if ((data <= 127) && (data >= MSTP_Port.This_Station))
MSTP_Port.Nmax_master = data;
else
dlmstp_set_max_master(DEFAULT_MAX_MASTER);
/* FIXME: implement your data storage */
data = 1;
/* I2C_Read_Byte(
EEPROM_DEVICE_ADDRESS,
EEPROM_MSTP_MAX_INFO_FRAMES_ADDR); */
if (data >= 1)
MSTP_Port.Nmax_info_frames = data;
else
dlmstp_set_max_info_frames(DEFAULT_MAX_INFO_FRAMES);
#endif
#if PRINT_ENABLED
fprintf(stderr, "MS/TP MAC: %02X\n", MSTP_Port.This_Station);
fprintf(stderr, "MS/TP Max_Master: %02X\n", MSTP_Port.Nmax_master);
fprintf(stderr, "MS/TP Max_Info_Frames: %u\n", MSTP_Port.Nmax_info_frames);
#endif
/* set timer resolution */
if (timeGetDevCaps(&tc, sizeof(TIMECAPS)) != TIMERR_NOERROR) {
fprintf(stderr, "Failed to set timer resolution\n");
}
TimeBeginPeriod =
min(max(tc.wPeriodMin, TARGET_RESOLUTION), tc.wPeriodMax);
timeBeginPeriod(TimeBeginPeriod);
/* start the threads */
hThread = _beginthread(dlmstp_receive_fsm_task, 4096, &arg_value);
if (hThread == 0) {
fprintf(stderr, "Failed to start recive FSM task\n");
}
hThread = _beginthread(dlmstp_master_fsm_task, 4096, &arg_value);
if (hThread == 0) {
fprintf(stderr, "Failed to start Master Node FSM task\n");
}
return true;
}