#include <stdio.h>
#include <string.h>
#include <oscalls.h>
#include <socket.h>
#include <intrz80.h>
int GMT = 3;
no_init unsigned char is_atm;
no_init unsigned char netbuf[4 * 1024];
no_init struct sockaddr_in ntp_ia;
union
{
unsigned long ul;
unsigned char b[4];
} secsUnix;
unsigned int hour, minute, second, day, month, year, weekday;
SOCKET s = 0;
unsigned char inet = 0;
const unsigned char monthDays[12] =
{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
const unsigned char ntpnead[48] =
{
0xdb,
0x00,
0x11,
0xfa,
0x00,
0x00,
0x00,
0x00,
0x00,
0x01,
0x03,
0xfe,
};
unsigned char *defntp = "2.ru.pool.ntp.org";
const unsigned char regaddr_ve[16] = {0x10, 0, 0x50, 0, 0x90, 0, 0, 0x12, 0x52, 0x92, 0, 0, 0, 0, 0, 0};
const unsigned char help[] = "\
-H help\r\n\
-T set time(-T17:59:38)\r\n\
-D set date(-D21-06-2019)\r\n\
-N ntp-server default: -N2.ru.pool.ntp.org\r\n\
-Z time-zone default: -Z3\r\n\
-i get datetime from internet";
extern void dns_resolve(void);
{
if (s)
closesocket(s, 0);
if (e != 0)
{
}
((void (*)(int))0x0000)(e);
}
extern void dns_resolve(void);
unsigned char readcmos(unsigned char r)
{
disable_interrupt();
if (is_atm == 2 || is_atm == 3)
{
r = regaddr_ve[r];
if (r != 0)
{
input(0x55FE);
r = input((r << 8) | 0x00fe);
}
}
else
{
output(0xdef7, r);
r = input(0xbef7);
}
enable_interrupt();
return r;
}
void writecmos(unsigned char r, unsigned char v)
{
disable_interrupt();
if (is_atm == 2 || is_atm == 3)
{
r = regaddr_ve[r] + 1; // На запись порт + 1
if (r != 0)
{
input(0x55FE);
input((r << 8) | 0x00fe);
input((v << 8) | 0x00fe);
}
}
else
{
output(0xdef7, r);
output(0xbef7, v);
}
enable_interrupt();
}
void Unix_to_GMT(void)
{
unsigned char monthLength = 0;
// корректировка часового пояса и синхронизация
int days = 0;
secsUnix.ul = secsUnix.ul + GMT * 3600;
second = secsUnix.ul % 60;
secsUnix.ul /= 60; // now it is minutes
minute = secsUnix.ul % 60;
secsUnix.ul /= 60; // now it is hours
hour = secsUnix.ul % 24;
secsUnix.ul /= 24; // now it is days
weekday = (secsUnix.ul + 4) % 7; // day week, 0-sunday
year = 70;
while (days + ((year % 4) ? 365 : 366) <= secsUnix.ul)
{
days += (year % 4) ? 365 : 366;
year++;
}
secsUnix.ul -= days; // now it is days in this year, starting at 0
days = 0;
month = 0;
for (month = 0; month < 12; month++)
{
if (month == 1)
{ // february
if (year % 4)
monthLength = 28;
else
monthLength = 29;
}
else
monthLength = monthDays[month];
if (secsUnix.ul >= monthLength)
secsUnix.ul -= monthLength;
else
break;
}
month++; // jan is month 1
day = secsUnix.ul + 1; // day of month
}
void ntp_resolver(void)
{
unsigned char i, j;
signed char res;
int len;
ntp_ia.sin_port = 123 << 8;
ntp_ia.sin_addr = *dns_resolver((void *)defntp);
if (!ntp_ia.sin_addr.S_un.S_addr)
exit((int)"error: domain name not resolved");
i = 200;
inetloop:
YIELD();
i--;
YIELD();
if (i == 0)
{
}
s = socket(AF_INET, SOCK_DGRAM, 0);
if (s < 0)
{
s = 0;
goto inetloop;
}
memcpy(netbuf
, ntpnead
, sizeof(ntpnead
));
len = sendto(s, netbuf, 48, 0, &ntp_ia, sizeof(ntp_ia));
if (res < 0)
{
closesocket(s, 0);
s = 0;
goto inetloop;
}
j = 50;
while (j)
{
j--;
len = recvfrom(s, netbuf, sizeof(netbuf), 0, &ntp_ia, sizeof(ntp_ia));
if (len < 0)
{
YIELD();
YIELD();
continue;
}
break;
}
closesocket(s, 0);
s = 0;
if (len <= 0)
{
exit((int)"server error");
}
secsUnix.b[3] = netbuf[40];
secsUnix.b[2] = netbuf[41];
secsUnix.b[1] = netbuf[42];
secsUnix.b[0] = netbuf[43];
secsUnix.ul -= 2208988800UL;
Unix_to_GMT();
}
void set_datetime(void)
{
writecmos(0x0b, readcmos(0x0b) | 6);
writecmos(0x07, day);
writecmos(0x08, month);
if (is_atm == 2 || is_atm == 3)
{
writecmos(0x09, year - 80);
}
else
{
writecmos(0x09, year - 100);
}
writecmos(0x00, second);
writecmos(0x02, minute);
writecmos(0x04, hour);
}
void get_datetime(void)
{
writecmos(0x0b, readcmos(0x0b) | 6);
second = readcmos(0x00);
minute = readcmos(0x02);
hour = readcmos(0x04);
weekday = readcmos(0x06) - 1;
day = readcmos(0x07);
month = readcmos(0x08);
if (is_atm == 2 || is_atm == 3)
{
year = readcmos(0x09) + 80;
}
else{year = readcmos(0x09) + 100;}
}
C_task main(int argc, char *argv[])
{
unsigned char i = 1;
os_initstdio();
is_atm = (unsigned char)OS_GETCONFIG();
if (argc == 1)
{
get_datetime();
}
while (i != argc)
{
char *p = argv[i];
if (p[0] != '-')
exit((int)"Wrong parameter. Use -H for help");
switch (p[1] & 0xdf)
{
case 'T':
get_datetime();
if (sscanf(p
+ 2, "%d:%d:%d", &hour
, &minute
, &second
) == 3)
{
disable_interrupt();
set_datetime();
enable_interrupt();
}
break;
case 'D':
get_datetime();
if (sscanf(p
+ 2, "%d-%d-%d", &day
, &month
, &year
) == 3)
{
disable_interrupt();
year -= 1900;
set_datetime();
enable_interrupt();
}
break;
case 'N':
defntp = p + 2;
break;
case 'Z':
if (sscanf(p
+ 2, "%d", &GMT
) != 1)
{
GMT = 3;
}
break;
case 'H':
break;
case 'I':
inet = 1;
break;
default:
exit((int)"Wrong parameter. Use -H for help");
}
i++;
}
if (inet)
{
ntp_resolver();
set_datetime();
writecmos(0x06, weekday + 1);
}
printf("%02u-%02u-%04u ", day
, month
, year
+ 1900);
printf("%02u:%02u:%02u\r\n", hour
, minute
, second
);
return 0;
}