|
|
|
@ -24,6 +24,8 @@ |
|
|
|
* THE SOFTWARE. |
|
|
|
*/ |
|
|
|
|
|
|
|
#include <stdio.h> |
|
|
|
#include <string.h> |
|
|
|
#include "stm32f4xx_hal.h" |
|
|
|
|
|
|
|
#include "mpconfig.h" |
|
|
|
@ -34,17 +36,41 @@ |
|
|
|
#include "portmodules.h" |
|
|
|
#include "rtc.h" |
|
|
|
|
|
|
|
#define DAYS_PER_400Y (365*400 + 97) |
|
|
|
#define DAYS_PER_100Y (365*100 + 24) |
|
|
|
#define DAYS_PER_4Y (365*4 + 1) |
|
|
|
|
|
|
|
typedef struct { |
|
|
|
uint16_t tm_year; // i.e. 2014
|
|
|
|
uint8_t tm_mon; // 1..12
|
|
|
|
uint8_t tm_mday; // 1..31
|
|
|
|
uint8_t tm_hour; // 0..23
|
|
|
|
uint8_t tm_min; // 0..59
|
|
|
|
uint8_t tm_sec; // 0..59
|
|
|
|
uint8_t tm_wday; // 0..6 0 = Monday
|
|
|
|
uint16_t tm_yday; // 1..366
|
|
|
|
} mod_struct_time; |
|
|
|
|
|
|
|
/// \module time - time related functions
|
|
|
|
///
|
|
|
|
/// The `time` module provides functions for getting the current time and date,
|
|
|
|
/// and for sleeping.
|
|
|
|
|
|
|
|
STATIC const uint16_t days_since_jan1[]= { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }; |
|
|
|
STATIC const uint16_t days_since_jan1[]= { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }; |
|
|
|
|
|
|
|
STATIC bool is_leap_year(mp_uint_t year) { |
|
|
|
return (year % 4 == 0 && year % 100 != 0) || year % 400 == 0; |
|
|
|
} |
|
|
|
|
|
|
|
// Month is one based
|
|
|
|
STATIC mp_uint_t days_in_month(mp_uint_t year, mp_uint_t month) { |
|
|
|
mp_uint_t mdays = days_since_jan1[month] - days_since_jan1[month - 1]; |
|
|
|
if (month == 2 && is_leap_year(year)) { |
|
|
|
mdays++; |
|
|
|
} |
|
|
|
return mdays; |
|
|
|
} |
|
|
|
|
|
|
|
// compute the day of the year, between 1 and 366
|
|
|
|
// month should be between 1 and 12, date should start at 1
|
|
|
|
mp_uint_t mod_time_year_day(mp_uint_t year, mp_uint_t month, mp_uint_t date) { |
|
|
|
@ -55,7 +81,7 @@ mp_uint_t mod_time_year_day(mp_uint_t year, mp_uint_t month, mp_uint_t date) { |
|
|
|
return yday; |
|
|
|
} |
|
|
|
|
|
|
|
// returns the number of seconds, as an integer, since 1/1/2000
|
|
|
|
// returns the number of seconds, as an integer, since 2000-01-01
|
|
|
|
mp_uint_t mod_time_seconds_since_2000(mp_uint_t year, mp_uint_t month, mp_uint_t date, mp_uint_t hour, mp_uint_t minute, mp_uint_t second) { |
|
|
|
return |
|
|
|
second |
|
|
|
@ -69,29 +95,213 @@ mp_uint_t mod_time_seconds_since_2000(mp_uint_t year, mp_uint_t month, mp_uint_t |
|
|
|
+ (year - 2000) * 31536000; |
|
|
|
} |
|
|
|
|
|
|
|
/// \function localtime()
|
|
|
|
/// Returns time stored in RTC as: (year, month, date, hour, minute, second, weekday).
|
|
|
|
/// Weekday is 0-6 for Mon-Sun.
|
|
|
|
STATIC mp_obj_t time_localtime(void) { |
|
|
|
// get date and time
|
|
|
|
// note: need to call get time then get date to correctly access the registers
|
|
|
|
RTC_DateTypeDef date; |
|
|
|
RTC_TimeTypeDef time; |
|
|
|
HAL_RTC_GetTime(&RTCHandle, &time, FORMAT_BIN); |
|
|
|
HAL_RTC_GetDate(&RTCHandle, &date, FORMAT_BIN); |
|
|
|
// LEAPOCH corresponds to 2000-03-01, which is a mod-400 year, immediately
|
|
|
|
// after Feb 29. We calculate seconds as a signed integer relative to that.
|
|
|
|
//
|
|
|
|
// Our timebase is is relative to 2000-01-01.
|
|
|
|
|
|
|
|
#define LEAPOCH ((31 + 29) * 86400) |
|
|
|
|
|
|
|
void mod_time_seconds_since_2000_to_struct_time(mp_uint_t t, mod_struct_time *tm) { |
|
|
|
memset(tm, 0, sizeof(*tm)); |
|
|
|
|
|
|
|
// The following algorithm was adapted from musl's __secs_to_tm and adapted
|
|
|
|
// for differences in MicroPython's timebase.
|
|
|
|
|
|
|
|
mp_int_t seconds = t - LEAPOCH; |
|
|
|
|
|
|
|
mp_int_t days = seconds / 86400; |
|
|
|
seconds %= 86400; |
|
|
|
tm->tm_hour = seconds / 3600; |
|
|
|
tm->tm_min = seconds / 60 % 60; |
|
|
|
tm->tm_sec = seconds % 60; |
|
|
|
|
|
|
|
mp_int_t wday = (days + 2) % 7; // Mar 1, 2000 was a Wednesday (2)
|
|
|
|
if (wday < 0) { |
|
|
|
wday += 7; |
|
|
|
} |
|
|
|
tm->tm_wday = wday; |
|
|
|
|
|
|
|
mp_int_t qc_cycles = days / DAYS_PER_400Y; |
|
|
|
days %= DAYS_PER_400Y; |
|
|
|
if (days < 0) { |
|
|
|
days += DAYS_PER_400Y; |
|
|
|
qc_cycles--; |
|
|
|
} |
|
|
|
mp_int_t c_cycles = days / DAYS_PER_100Y; |
|
|
|
if (c_cycles == 4) { |
|
|
|
c_cycles--; |
|
|
|
} |
|
|
|
days -= (c_cycles * DAYS_PER_100Y); |
|
|
|
|
|
|
|
mp_int_t q_cycles = days / DAYS_PER_4Y; |
|
|
|
if (q_cycles == 25) { |
|
|
|
q_cycles--; |
|
|
|
} |
|
|
|
days -= q_cycles * DAYS_PER_4Y; |
|
|
|
|
|
|
|
mp_int_t years = days / 365; |
|
|
|
if (years == 4) { |
|
|
|
years--; |
|
|
|
} |
|
|
|
days -= (years * 365); |
|
|
|
|
|
|
|
mp_int_t leap = !years && (q_cycles || !c_cycles); |
|
|
|
|
|
|
|
tm->tm_yday = days + 31 + 28 + leap; |
|
|
|
if (tm->tm_yday >= 365 + leap) { |
|
|
|
tm->tm_yday -= 365 + leap; |
|
|
|
} |
|
|
|
|
|
|
|
tm->tm_year = 2000 + years + 4 * q_cycles + 100 * c_cycles + 400 * qc_cycles; |
|
|
|
|
|
|
|
// Note: days_in_month[0] corresponds to March
|
|
|
|
static const int8_t days_in_month[] = {31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 31, 29}; |
|
|
|
|
|
|
|
mp_int_t month; |
|
|
|
for (month = 0; days_in_month[month] <= days; month++) { |
|
|
|
days -= days_in_month[month]; |
|
|
|
} |
|
|
|
|
|
|
|
tm->tm_mon = month + 2; |
|
|
|
if (tm->tm_mon >= 12) { |
|
|
|
tm->tm_mon -= 12; |
|
|
|
tm->tm_year++; |
|
|
|
} |
|
|
|
tm->tm_mday = days + 1; // Make one based
|
|
|
|
tm->tm_mon++; // Make one based
|
|
|
|
tm->tm_yday++; // Make one based
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/// \function localtime([secs])
|
|
|
|
/// Convert a time expressed in seconds since Jan 1, 2000 into an 8-tuple which
|
|
|
|
/// contains: (year, month, mday, hour, minute, second, weekday, yearday)
|
|
|
|
/// If secs is not provided or None, then the current time from the RTC is used.
|
|
|
|
/// year includes the century (for example 2014)
|
|
|
|
/// month is 1-12
|
|
|
|
/// mday is 1-31
|
|
|
|
/// hour is 0-23
|
|
|
|
/// minute is 0-59
|
|
|
|
/// second is 0-59
|
|
|
|
/// weekday is 0-6 for Mon-Sun.
|
|
|
|
/// yearday is 1-366
|
|
|
|
STATIC mp_obj_t time_localtime(uint n_args, const mp_obj_t *args) { |
|
|
|
if (n_args == 0 || args[0] == mp_const_none) { |
|
|
|
// get current date and time
|
|
|
|
// note: need to call get time then get date to correctly access the registers
|
|
|
|
RTC_DateTypeDef date; |
|
|
|
RTC_TimeTypeDef time; |
|
|
|
HAL_RTC_GetTime(&RTCHandle, &time, FORMAT_BIN); |
|
|
|
HAL_RTC_GetDate(&RTCHandle, &date, FORMAT_BIN); |
|
|
|
mp_obj_t tuple[8] = { |
|
|
|
mp_obj_new_int(2000 + date.Year), |
|
|
|
mp_obj_new_int(date.Month), |
|
|
|
mp_obj_new_int(date.Date), |
|
|
|
mp_obj_new_int(time.Hours), |
|
|
|
mp_obj_new_int(time.Minutes), |
|
|
|
mp_obj_new_int(time.Seconds), |
|
|
|
mp_obj_new_int(date.WeekDay - 1), |
|
|
|
mp_obj_new_int(mod_time_year_day(2000 + date.Year, date.Month, date.Date)), |
|
|
|
}; |
|
|
|
return mp_obj_new_tuple(8, tuple); |
|
|
|
} |
|
|
|
|
|
|
|
mp_int_t seconds = mp_obj_get_int(args[0]); |
|
|
|
mod_struct_time tm; |
|
|
|
mod_time_seconds_since_2000_to_struct_time(seconds, &tm); |
|
|
|
mp_obj_t tuple[8] = { |
|
|
|
mp_obj_new_int(2000 + date.Year), |
|
|
|
mp_obj_new_int(date.Month), |
|
|
|
mp_obj_new_int(date.Date), |
|
|
|
mp_obj_new_int(time.Hours), |
|
|
|
mp_obj_new_int(time.Minutes), |
|
|
|
mp_obj_new_int(time.Seconds), |
|
|
|
mp_obj_new_int(date.WeekDay - 1), |
|
|
|
mp_obj_new_int(mod_time_year_day(2000 + date.Year, date.Month, date.Date)), |
|
|
|
mp_obj_new_int(tm.tm_year), |
|
|
|
mp_obj_new_int(tm.tm_mon), |
|
|
|
mp_obj_new_int(tm.tm_mday), |
|
|
|
mp_obj_new_int(tm.tm_hour), |
|
|
|
mp_obj_new_int(tm.tm_min), |
|
|
|
mp_obj_new_int(tm.tm_sec), |
|
|
|
mp_obj_new_int(tm.tm_wday), |
|
|
|
mp_obj_new_int(tm.tm_yday), |
|
|
|
}; |
|
|
|
return mp_obj_new_tuple(8, tuple); |
|
|
|
} |
|
|
|
MP_DEFINE_CONST_FUN_OBJ_0(time_localtime_obj, time_localtime); |
|
|
|
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(time_localtime_obj, 0, 1, time_localtime); |
|
|
|
|
|
|
|
|
|
|
|
/// \function mktime()
|
|
|
|
/// This is inverse function of localtime. It's argument is a full 8-tuple
|
|
|
|
/// which expresses a time as per localtime. It returns an integer which is
|
|
|
|
/// the number of seconds since Jan 1, 2000.
|
|
|
|
STATIC mp_obj_t time_mktime(mp_obj_t tuple) { |
|
|
|
|
|
|
|
uint len; |
|
|
|
mp_obj_t *elem; |
|
|
|
|
|
|
|
mp_obj_get_array(tuple, &len, &elem); |
|
|
|
|
|
|
|
// localtime generates a tuple of len 8. CPython uses 9, so we accept both.
|
|
|
|
if (len < 8 || len > 9) { |
|
|
|
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "mktime needs a tuple of length 8 or 9 (%d given)", len)); |
|
|
|
} |
|
|
|
|
|
|
|
mp_int_t year = mp_obj_get_int(elem[0]); |
|
|
|
mp_int_t month = mp_obj_get_int(elem[1]); |
|
|
|
mp_int_t mday = mp_obj_get_int(elem[2]); |
|
|
|
mp_int_t hours = mp_obj_get_int(elem[3]); |
|
|
|
mp_int_t minutes = mp_obj_get_int(elem[4]); |
|
|
|
mp_int_t seconds = mp_obj_get_int(elem[5]); |
|
|
|
|
|
|
|
// Normalize the tuple. This allows things like:
|
|
|
|
//
|
|
|
|
// tm_tomorrow = list(time.localtime())
|
|
|
|
// tm_tomorrow[2] += 1 # Adds 1 to mday
|
|
|
|
// tomorrow = time.mktime(tm_tommorrow)
|
|
|
|
//
|
|
|
|
// And not have to worry about all the weird overflows.
|
|
|
|
//
|
|
|
|
// You can subtract dates/times this way as well.
|
|
|
|
|
|
|
|
minutes += seconds / 60; |
|
|
|
if ((seconds = seconds % 60) < 0) { |
|
|
|
seconds += 60; |
|
|
|
minutes--; |
|
|
|
} |
|
|
|
|
|
|
|
hours += minutes / 60; |
|
|
|
if ((minutes = minutes % 60) < 0) { |
|
|
|
minutes += 60; |
|
|
|
hours--; |
|
|
|
} |
|
|
|
|
|
|
|
mday += hours / 24; |
|
|
|
if ((hours = hours % 24) < 0) { |
|
|
|
hours += 24; |
|
|
|
mday--; |
|
|
|
} |
|
|
|
|
|
|
|
month--; // make month zero based
|
|
|
|
year += month / 12; |
|
|
|
if ((month = month % 12) < 0) { |
|
|
|
month += 12; |
|
|
|
year--; |
|
|
|
} |
|
|
|
month++; // back to one based
|
|
|
|
|
|
|
|
while (mday < 1) { |
|
|
|
if (--month == 0) { |
|
|
|
month = 12; |
|
|
|
year--; |
|
|
|
} |
|
|
|
mday += days_in_month(year, month); |
|
|
|
} |
|
|
|
while (mday > days_in_month(year, month)) { |
|
|
|
mday -= days_in_month(year, month); |
|
|
|
if (++month == 13) { |
|
|
|
month = 1; |
|
|
|
year++; |
|
|
|
} |
|
|
|
} |
|
|
|
return mp_obj_new_int_from_uint(mod_time_seconds_since_2000(year, month, mday, hours, minutes, seconds)); |
|
|
|
} |
|
|
|
MP_DEFINE_CONST_FUN_OBJ_1(time_mktime_obj, time_mktime); |
|
|
|
|
|
|
|
|
|
|
|
/// \function sleep(seconds)
|
|
|
|
/// Sleep for the given number of seconds. Seconds can be a floating-point number to
|
|
|
|
@ -127,6 +337,7 @@ STATIC const mp_map_elem_t time_module_globals_table[] = { |
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_time) }, |
|
|
|
|
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_localtime), (mp_obj_t)&time_localtime_obj }, |
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_mktime), (mp_obj_t)&time_mktime_obj }, |
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_sleep), (mp_obj_t)&time_sleep_obj }, |
|
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_time), (mp_obj_t)&time_time_obj }, |
|
|
|
}; |
|
|
|
|
Dave Hylands
10 years ago
Damien George