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Release BACnet Protocol Stack 0.3.0

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skarg
2007-02-23 13:19:57 +00:00
parent 6c5b409dcf
commit 63e18a0f1f
315 changed files with 57198 additions and 0 deletions
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bacnet-stack-0-3-0/ports/pic18/main.c
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/**************************************************************************
*
* Copyright (C) 2005 Steve Karg <skarg@users.sourceforge.net>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#include <stddef.h>
#include <stdint.h>
#include "mstp.h"
#include "bytes.h"
#include "crc.h"
#include "rs485.h"
#include "init.h"
#include "timer.h"
#include "datalink.h"
#include "handlers.h"
#include "device.h"
#include "hardware.h"
#include "iam.h"
/* for readproperty handler */
#include "config.h"
#include "txbuf.h"
#include "bacdef.h"
#include "bacdcode.h"
#include "bacerror.h"
#include "apdu.h"
#include "npdu.h"
#include "abort.h"
#include "rp.h"
/* buffer used for encoding RP apdu */
static uint8_t Temp_Buf[MAX_APDU];
/* buffer used for receiving */
static uint8_t Rx_Buf[MAX_MPDU] = { 0 };
/* address where message came from */
static BACNET_ADDRESS src;
/* address used to send */
static BACNET_ADDRESS my_address;
/* see demo/handler/h_rp.c for a more complete example */
void My_Read_Property_Handler(uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src, BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_READ_PROPERTY_DATA data;
int len = 0;
int pdu_len = 0;
bool send = false;
bool error = false;
int bytes_sent = 0;
BACNET_ERROR_CLASS error_class = ERROR_CLASS_OBJECT;
BACNET_ERROR_CODE error_code = ERROR_CODE_UNKNOWN_OBJECT;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS my_address;
len = rp_decode_service_request(service_request, service_len, &data);
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len = npdu_encode_pdu(&Handler_Transmit_Buffer[0], src,
&my_address, &npdu_data);
/* bad decoding - send an abort */
if (len < 0) {
len = abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
} else if (service_data->segmented_message) {
len = abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
ABORT_REASON_SEGMENTATION_NOT_SUPPORTED, true);
} else {
switch (data.object_type) {
case OBJECT_DEVICE:
/* FIXME: probably need a length limitation sent with encode */
if (data.object_instance == Device_Object_Instance_Number()) {
len = Device_Encode_Property_APDU(&Temp_Buf[0],
data.object_property,
data.array_index, &error_class, &error_code);
if (len >= 0) {
/* encode the APDU portion of the packet */
data.application_data = &Temp_Buf[0];
data.application_data_len = len;
/* FIXME: probably need a length limitation sent with encode */
len =
rp_ack_encode_apdu(&Handler_Transmit_Buffer
[pdu_len], service_data->invoke_id, &data);
} else
error = true;
} else
error = true;
break;
default:
error = true;
break;
}
}
if (error) {
len = bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
SERVICE_CONFIRMED_READ_PROPERTY, error_class, error_code);
}
pdu_len += len;
bytes_sent = datalink_send_pdu(src, &npdu_data,
&Handler_Transmit_Buffer[0], pdu_len);
return;
}
/****************************************************************************
* DESCRIPTION: Handles our calling our module level milisecond counters
* PARAMETERS: none
* RETURN: none
* ALGORITHM: none
* NOTES: none
*****************************************************************************/
static void Check_Timer_Milliseconds(void)
{
/* We might have missed some so keep doing it until we have got them all */
while (Milliseconds) {
dlmstp_millisecond_timer();
Milliseconds--;
}
}
void main(void)
{
unsigned timeout = 100; /* milliseconds */
uint16_t pdu_len = 0;
/* we need to handle who-is
to support dynamic device binding to us */
apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_IS,
handler_who_is);
/* set the handler for all the services we don't implement
It is required to send the proper reject message... */
apdu_set_unrecognized_service_handler_handler
(handler_unrecognized_service);
/* we must implement read property - it's required! */
apdu_set_confirmed_handler(SERVICE_CONFIRMED_READ_PROPERTY,
My_Read_Property_Handler);
/* handle communication so we can shutup when asked */
apdu_set_confirmed_handler
(SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL,
handler_device_communication_control);
Device_Set_Object_Instance_Number(5);
dlmstp_set_my_address(0x05);
dlmstp_init();
init_hardware();
/* broadcast an I-Am on startup */
iam_send(&Handler_Transmit_Buffer[0]);
/* loop forever */
for (;;) {
WATCHDOG_TIMER();
/* input */
Check_Timer_Milliseconds();
pdu_len = datalink_receive(&src, &Rx_Buf[0], MAX_MPDU, timeout);
/* process */
if (pdu_len) {
npdu_handler(&src, &Rx_Buf[0], pdu_len);
}
/* output */
}
return;
}