datetime_t TimePackToRel(const datepack_t *tp, bool_t Local)
{
static uint8_t Month[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
datetime_t t;
int a;
if (tp->Year<1933 || tp->Year>=2069 ||
tp->Month<1 || tp->Month>12 ||
tp->Day<1 || tp->Day>31 ||
tp->Hour<0 || tp->Hour>=24 ||
tp->Minute<0 || tp->Minute>=60 ||
tp->Second<0 || tp->Second>=60)
return INVALID_DATETIME_T;
t = -2145916800;
t += (tp->Day-1)*24*60*60;
t += tp->Hour*60*60;
t += tp->Minute*60;
t += tp->Second;
for (a=1933;a<tp->Year;++a)
t += 24*60*60*(LeapYear(a) ? 366:365);
for (a=1;a<tp->Month;++a)
{
t += Month[a-1]*24*60*60;
if (a==2 && LeapYear(tp->Year))
t += 24*60*60;
}
if (Local)
{
int Timezone = configGetTimezone();
int DaylightSaving = configIsDaylightSavingEnabled();
t -= (Timezone + DaylightSaving * 60)*60;
}
return t;
}
void OSystem_PS2::readRtcTime(void) {
struct CdClock cdClock;
readRTC(&cdClock);
g_lastTimeCheck = getMillis();
if (cdClock.stat) {
msgPrintf(5000, "Unable to read RTC time, EC: %d\n", cdClock.stat);
g_day = g_month = 1;
g_year = 0;
g_timeSecs = 0;
} else {
int gmtOfs = configGetTimezone();
if (configIsDaylightSavingEnabled())
gmtOfs += 60;
int timeSecs = (FROM_BCD(cdClock.hour) * 60 + FROM_BCD(cdClock.minute)) * 60 + FROM_BCD(cdClock.second);
timeSecs -= 9 * 60 * 60; // minus 9 hours, JST -> GMT conversion
timeSecs += gmtOfs * 60; // GMT -> timezone the user selected
g_day = FROM_BCD(cdClock.day);
g_month = FROM_BCD(cdClock.month);
g_year = FROM_BCD(cdClock.year);
if (timeSecs < 0) {
buildNewDate(-1);
timeSecs += SECONDS_PER_DAY;
} else if (timeSecs >= SECONDS_PER_DAY) {
buildNewDate(+1);
timeSecs -= SECONDS_PER_DAY;
}
g_timeSecs = (uint32)timeSecs;
}
sioprintf("Time: %d:%02d:%02d - %d.%d.%4d\n", g_timeSecs / (60 * 60), (g_timeSecs / 60) % 60, g_timeSecs % 60,
g_day, g_month, g_year + 2000);
}
// converts the time returned from the ps2's clock into LOCAL time
// (ps2 clock is in JST time)
void configConvertToLocalTime(sceCdCLOCK* time)
{
int timezone_offset = configGetTimezone();
int daylight_saving = configIsDaylightSavingEnabled();
AdjustTime(time, timezone_offset - 540 + (daylight_saving * 60));
}
int ps2time_init( void )
{
CdvdClock_t clock;
struct tm tm_time;
static unsigned int monthdays[12] = {
31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
};
// query the RTC
cdInit(CDVD_INIT_NOCHECK);
if( !cdReadClock(&clock) )
return -1;
tm_time.tm_sec = BCD2DEC(clock.second);
tm_time.tm_min = BCD2DEC(clock.minute);
tm_time.tm_hour = BCD2DEC(clock.hour); // hour in Japan (GMT + 9)
tm_time.tm_mday = BCD2DEC(clock.day);
tm_time.tm_mon = BCD2DEC(clock.month) - 1; // RTC months range from 1 - 12
tm_time.tm_year = BCD2DEC(clock.year) + 100; // RTC returns year less 2000
if( tm_time.tm_hour < 9 ) {
// go back to last month
if( tm_time.tm_mday == 1 ) {
// go back to last year if month is january
if( tm_time.tm_mon == 0 ) {
tm_time.tm_mon = 11;
tm_time.tm_year = tm_time.tm_year - 1;
}
else {
tm_time.tm_mon = tm_time.tm_mon - 1;
}
// if going back to february and year is a leapyear
if( tm_time.tm_mon == 1 && IS_LEAP_YEAR(tm_time.tm_year + 1900)) {
tm_time.tm_mday = 29;
}
else {
tm_time.tm_mday = monthdays[ tm_time.tm_mon ];
}
}
else {
tm_time.tm_mday = tm_time.tm_mday - 1;
}
tm_time.tm_hour = (24 - (9 - tm_time.tm_hour)) % 24;
}
else {
tm_time.tm_hour -= 9;
}
g_ps2time_start = ps2time_mktime(&tm_time);
// setup EE timer1
*T1_MODE = 0x0000;
// enable the overflow interrupt handler
g_interruptID = AddIntcHandler(T1_INTC, ps2time_intr_handler, 0);
EnableIntc(T1_INTC);
g_interruptCount = 0;
*T1_COUNT = 0;
*T1_MODE = Tn_MODE(0x02, 0, 0, 0, 0, 0x01, 0, 0x01, 0, 0);
// set the timezone as offset in minutes from GMT
ps2time_setTimezone( configGetTimezone() );
return 0;
}
bool_t GetDatePacked(datetime_t t, datepack_t *tp, bool_t Local)
{
static const uint16_t Days[12] =
{
0,
31,
31+28,
31+28+31,
31+28+31+30,
31+28+31+30+31,
31+28+31+30+31+30,
31+28+31+30+31+30+31,
31+28+31+30+31+30+31+31,
31+28+31+30+31+30+31+31+30,
31+28+31+30+31+30+31+31+30+31,
31+28+31+30+31+30+31+31+30+31+30,
};
unsigned int a;
unsigned int b;
unsigned int c;
if (!tp || t == INVALID_DATETIME_T) return 0;
if (t<-2145916800)
return 0;
if (Local)
{
int Timezone = configGetTimezone();
int DaylightSaving = configIsDaylightSavingEnabled();
t += (Timezone + DaylightSaving * 60)*60;
}
a = t+2145916800; //2001 -> 1933
b = a % (24*60*60);
a = a / (24*60*60);
tp->Second = b %60;
b /= 60;
tp->Minute = b %60;
tp->Hour = b /60;
tp->WeekDay = 1 + a % 7;
for (b=1933;;++b)
{
c = LeapYear(b) ? 366:365;
if (a >= c)
a -= c;
else
break;
}
tp->Year = b;
tp->Day = 1;
if (LeapYear(b) && a>58)
{
if (a==59)
tp->Day = 2;
--a;
}
for (b = 11; b && (Days[b] > a); --b) {}
tp->Month = b+1;
tp->Day += a - Days[b];
return 1;
}