mirror of
https://github.com/stargieg/bacnet-stack
synced 2025-10-26 23:35:52 +08:00
299 lines
9.4 KiB
C
299 lines
9.4 KiB
C
/**************************************************************************
|
|
*
|
|
* Copyright (C) 2006 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 <stdio.h>
|
|
#include "config.h"
|
|
#include "device.h"
|
|
#include "datetime.h"
|
|
#include "bacdef.h"
|
|
#include "bacdcode.h"
|
|
#include "timesync.h"
|
|
#include "handlers.h"
|
|
#include "client.h"
|
|
#include "bacaddr.h"
|
|
|
|
/** @file h_ts.c Handles TimeSync requests. */
|
|
|
|
#if defined(BACNET_TIME_MASTER)
|
|
/* sending time sync to recipients */
|
|
#ifndef MAX_TIME_SYNC_RECIPIENTS
|
|
#define MAX_TIME_SYNC_RECIPIENTS 16
|
|
#endif
|
|
BACNET_RECIPIENT_LIST Time_Sync_Recipients[MAX_TIME_SYNC_RECIPIENTS];
|
|
/* variable used for controlling when to
|
|
automatically send a TimeSynchronization request */
|
|
static BACNET_DATE_TIME Next_Sync_Time;
|
|
#endif
|
|
|
|
#if PRINT_ENABLED
|
|
static void show_bacnet_date_time(
|
|
BACNET_DATE * bdate,
|
|
BACNET_TIME * btime)
|
|
{
|
|
/* show the date received */
|
|
fprintf(stderr, "%u", (unsigned) bdate->year);
|
|
fprintf(stderr, "/%u", (unsigned) bdate->month);
|
|
fprintf(stderr, "/%u", (unsigned) bdate->day);
|
|
/* show the time received */
|
|
fprintf(stderr, " %02u", (unsigned) btime->hour);
|
|
fprintf(stderr, ":%02u", (unsigned) btime->min);
|
|
fprintf(stderr, ":%02u", (unsigned) btime->sec);
|
|
fprintf(stderr, ".%02u", (unsigned) btime->hundredths);
|
|
fprintf(stderr, "\r\n");
|
|
}
|
|
#endif
|
|
|
|
void handler_timesync(
|
|
uint8_t * service_request,
|
|
uint16_t service_len,
|
|
BACNET_ADDRESS * src)
|
|
{
|
|
int len = 0;
|
|
BACNET_DATE bdate = {0};
|
|
BACNET_TIME btime = {0};
|
|
|
|
(void) src;
|
|
(void) service_len;
|
|
len =
|
|
timesync_decode_service_request(service_request, service_len, &bdate,
|
|
&btime);
|
|
if (len > 0) {
|
|
if (datetime_is_valid(&bdate, &btime)) {
|
|
/* fixme: only set the time if off by some amount */
|
|
#if PRINT_ENABLED
|
|
fprintf(stderr, "Received TimeSyncronization Request\r\n");
|
|
show_bacnet_date_time(&bdate, &btime);
|
|
#else
|
|
/* FIXME: set the time?
|
|
Maybe only set the time if off by some amount */
|
|
#endif
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
void handler_timesync_utc(
|
|
uint8_t * service_request,
|
|
uint16_t service_len,
|
|
BACNET_ADDRESS * src)
|
|
{
|
|
int len = 0;
|
|
BACNET_DATE bdate;
|
|
BACNET_TIME btime;
|
|
|
|
(void) src;
|
|
(void) service_len;
|
|
len =
|
|
timesync_decode_service_request(service_request, service_len, &bdate,
|
|
&btime);
|
|
if (len > 0) {
|
|
if (datetime_is_valid(&bdate, &btime)) {
|
|
#if PRINT_ENABLED
|
|
fprintf(stderr, "Received TimeSyncronization Request\r\n");
|
|
show_bacnet_date_time(&bdate, &btime);
|
|
#endif
|
|
/* FIXME: set the time?
|
|
only set the time if off by some amount */
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
#if defined(BACNET_TIME_MASTER)
|
|
/** Handle a request to list all the timesync recipients.
|
|
*
|
|
* Invoked by a request to read the Device object's
|
|
* PROP_TIME_SYNCHRONIZATION_RECIPIENTS.
|
|
* Loops through the list of timesync recipients, and, for each valid one,
|
|
* adds its data to the APDU.
|
|
*
|
|
* @param apdu [out] Buffer in which the APDU contents are built.
|
|
* @param max_apdu [in] Max length of the APDU buffer.
|
|
*
|
|
* @return How many bytes were encoded in the buffer, or
|
|
* BACNET_STATUS_ABORT if the response would not fit within the buffer.
|
|
*/
|
|
int handler_timesync_encode_recipients(
|
|
uint8_t * apdu,
|
|
int max_apdu)
|
|
{
|
|
return timesync_encode_timesync_recipients(apdu, max_apdu,
|
|
&Time_Sync_Recipients[0]);
|
|
}
|
|
#endif
|
|
|
|
#if defined(BACNET_TIME_MASTER)
|
|
bool handler_timesync_recipient_write(
|
|
BACNET_WRITE_PROPERTY_DATA * wp_data)
|
|
{
|
|
bool status = false;
|
|
|
|
/* fixme: handle writing of the recipient list */
|
|
wp_data->error_class = ERROR_CLASS_PROPERTY;
|
|
wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
|
|
|
|
return status;
|
|
}
|
|
#endif
|
|
|
|
#if defined(BACNET_TIME_MASTER)
|
|
static void handler_timesync_send(
|
|
BACNET_DATE_TIME * current_date_time)
|
|
{
|
|
unsigned index = 0;
|
|
bool status = false;
|
|
|
|
for (index = 0; index < MAX_TIME_SYNC_RECIPIENTS; index++) {
|
|
if (Time_Sync_Recipients[index].tag == 1) {
|
|
if (status) {
|
|
Send_TimeSync_Remote(
|
|
&Time_Sync_Recipients[index].type.address,
|
|
¤t_date_time->date,
|
|
¤t_date_time->time);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(BACNET_TIME_MASTER)
|
|
static void handler_timesync_update(
|
|
uint32_t device_interval,
|
|
BACNET_DATE_TIME * current_date_time)
|
|
{
|
|
uint32_t current_minutes = 0;
|
|
uint32_t next_minutes = 0;
|
|
uint32_t delta_minutes = 0;
|
|
uint32_t offset_minutes = 0;
|
|
uint32_t interval = 0;
|
|
uint32_t interval_offset = 0;
|
|
|
|
datetime_copy(&Next_Sync_Time, current_date_time);
|
|
if (Device_Align_Intervals()) {
|
|
interval_offset = Device_Interval_Offset();
|
|
/* If periodic time synchronization is enabled and
|
|
the time synchronization interval is a factor of
|
|
(divides without remainder) an hour or day, then
|
|
the beginning of the period specified for time
|
|
synchronization shall be aligned to the hour or
|
|
day, respectively. */
|
|
if ((60 % device_interval) == 0) {
|
|
/* factor of an hour alignment */
|
|
/* Interval_Minutes = 1 2 3 4 5 6 10 12 15 20 30 60 */
|
|
/* determine next interval */
|
|
current_minutes = Next_Sync_Time.time.min;
|
|
interval = current_minutes/device_interval;
|
|
interval++;
|
|
next_minutes = interval * device_interval;
|
|
offset_minutes = interval_offset % device_interval;
|
|
next_minutes += offset_minutes;
|
|
delta_minutes = next_minutes - current_minutes;
|
|
datetime_add_minutes(&Next_Sync_Time, delta_minutes);
|
|
Next_Sync_Time.time.sec = 0;
|
|
Next_Sync_Time.time.hundredths = 0;
|
|
} else if ((1440 % device_interval) == 0) {
|
|
/* factor of a day alignment */
|
|
/* Interval_Minutes = 1 2 3 4 5 6 8 9 10 12 15 16
|
|
18 20 24 30 32 36 40 45 48 60 72 80 90 96 120
|
|
144 160 180 240 288 360 480 720 1440 */
|
|
current_minutes =
|
|
datetime_minutes_since_midnight(&Next_Sync_Time.time);
|
|
interval = current_minutes/device_interval;
|
|
interval++;
|
|
next_minutes = interval * device_interval;
|
|
offset_minutes = interval_offset % device_interval;
|
|
next_minutes += offset_minutes;
|
|
delta_minutes = next_minutes - current_minutes;
|
|
datetime_add_minutes(&Next_Sync_Time, delta_minutes);
|
|
Next_Sync_Time.time.sec = 0;
|
|
Next_Sync_Time.time.hundredths = 0;
|
|
}
|
|
} else {
|
|
datetime_add_minutes(&Next_Sync_Time, device_interval);
|
|
Next_Sync_Time.time.sec = 0;
|
|
Next_Sync_Time.time.hundredths = 0;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(BACNET_TIME_MASTER)
|
|
bool handler_timesync_recipient_address_set(
|
|
unsigned index,
|
|
BACNET_ADDRESS *address)
|
|
{
|
|
bool status = false;
|
|
|
|
if (address && (index < MAX_TIME_SYNC_RECIPIENTS)) {
|
|
Time_Sync_Recipients[index].tag = 1;
|
|
bacnet_address_copy(
|
|
&Time_Sync_Recipients[index].type.address,
|
|
address);
|
|
status = true;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
#endif
|
|
|
|
#if defined(BACNET_TIME_MASTER)
|
|
void handler_timesync_task(
|
|
BACNET_DATE_TIME * current_date_time)
|
|
{
|
|
int compare = 0;
|
|
uint32_t device_interval = 0;
|
|
|
|
device_interval = Device_Time_Sync_Interval();
|
|
if (device_interval) {
|
|
compare = datetime_compare(current_date_time, &Next_Sync_Time);
|
|
/* if the date/times are the same, return is 0
|
|
if date1 is before date2, returns negative
|
|
if date1 is after date2, returns positive */
|
|
if (compare >= 0) {
|
|
handler_timesync_update(device_interval, current_date_time);
|
|
handler_timesync_send(current_date_time);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(BACNET_TIME_MASTER)
|
|
void handler_timesync_init(void)
|
|
{
|
|
unsigned i = 0;
|
|
|
|
/* connect linked list */
|
|
for (; i < (MAX_TIME_SYNC_RECIPIENTS-1); i++) {
|
|
Time_Sync_Recipients[i].next = &Time_Sync_Recipients[i+1];
|
|
Time_Sync_Recipients[i+1].next = NULL;
|
|
}
|
|
for (i = 0; i < MAX_TIME_SYNC_RECIPIENTS; i++) {
|
|
Time_Sync_Recipients[i].tag = 0xFF;
|
|
}
|
|
}
|
|
#endif
|