djsundog
/
circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

lib: Move time utility functions to common library.

This commit is contained in:
Josef Gajdusek 2015-05-11 02:00:19 +02:00 committed by Damien George
parent 800d5cd16f
commit 1db4253886
12 changed files with 262 additions and 399 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
cc3200/application.mk
View File

@ -21,6 +21,7 @@ APP_INC += -I$(BUILD)/genhdr
APP_INC += -I../lib/fatfs
APP_INC += -I../lib/mp-readline
APP_INC += -I../lib/netutils
APP_INC += -I../lib/timeutils
APP_INC += -I../stmhal
APP_CPPDEFINES = -Dgcc -DTARGET_IS_CC3200 -DSL_FULL -DUSE_FREERTOS
@ -144,6 +145,7 @@ APP_LIB_SRC_C = $(addprefix lib/,\
libc/string0.c \
mp-readline/readline.c \
netutils/netutils.c \
timeutils/timeutils.c \
)
APP_STM_SRC_C = $(addprefix stmhal/,\

6
cc3200/fatfs/src/diskio.c
View File

@ -15,12 +15,12 @@
#if MICROPY_HW_HAS_SDCARD
#include "sd_diskio.h" /* SDCARD disk IO API */
#endif
#include "modutime.h"
#include "inc/hw_types.h"
#include "inc/hw_ints.h"
#include "inc/hw_memmap.h"
#include "rom_map.h"
#include "prcm.h"
#include "timeutils.h"
/* Definitions of physical drive number for each drive */
#define SFLASH 0 /* Map SFLASH drive to drive number 0 */
@ -192,13 +192,13 @@ DWORD get_fattime (
void
)
{
mod_struct_time tm;
timeutils_struct_time_t tm;
uint32_t seconds;
uint16_t mseconds;
// Get the time from the on-chip RTC and convert it to struct_time
MAP_PRCMRTCGet(&seconds, &mseconds);
mod_time_seconds_since_2000_to_struct_time(seconds, &tm);
timeutils_seconds_since_2000_to_struct_time(seconds, &tm);
return ((tm.tm_year - 1980) << 25) | ((tm.tm_mon) << 21) |
((tm.tm_mday) << 16) | ((tm.tm_hour) << 11) |

8
cc3200/ftp/ftp.c
View File

@ -40,7 +40,6 @@
#include "ftp.h"
#include "simplelink.h"
#include "modwlan.h"
#include "modutime.h"
#include "debug.h"
#include "serverstask.h"
#include "ff.h"
@ -49,6 +48,7 @@
#include "diskio.h"
#include "sd_diskio.h"
#include "updater.h"
#include "timeutils.h"
/******************************************************************************
@ -884,7 +884,7 @@ static int ftp_print_eplf_item (char *dest, uint32_t destsize, FILINFO *fno) {
uint16_t mseconds;
uint mindex = (((fno->fdate >> 5) & 0x0f) > 0) ? (((fno->fdate >> 5) & 0x0f) - 1) : 0;
uint day = ((fno->fdate & 0x1f) > 0) ? (fno->fdate & 0x1f) : 1;
uint fseconds = mod_time_seconds_since_2000(1980 + ((fno->fdate >> 9) & 0x7f),
uint fseconds = timeutils_seconds_since_2000(1980 + ((fno->fdate >> 9) & 0x7f),
(fno->fdate >> 5) & 0x0f,
fno->fdate & 0x1f,
(fno->ftime >> 11) & 0x1f,
@ -912,12 +912,12 @@ static int ftp_print_eplf_item (char *dest, uint32_t destsize, FILINFO *fno) {
}
static int ftp_print_eplf_drive (char *dest, uint32_t destsize, char *name) {
mod_struct_time tm;
timeutils_struct_time_t tm;
uint32_t tseconds;
uint16_t mseconds;
char *type = "d";
mod_time_seconds_since_2000_to_struct_time((FTP_UNIX_TIME_20150101 - FTP_UNIX_TIME_20000101), &tm);
timeutils_seconds_since_2000_to_struct_time((FTP_UNIX_TIME_20150101 - FTP_UNIX_TIME_20000101), &tm);
MAP_PRCMRTCGet(&tseconds, &mseconds);
if (FTP_UNIX_SECONDS_180_DAYS < tseconds - (FTP_UNIX_TIME_20150101 - FTP_UNIX_TIME_20000101)) {

4
cc3200/mods/moduos.c
View File

@ -38,11 +38,11 @@
#include "diskio.h"
#include "sflash_diskio.h"
#include "file.h"
#include "modutime.h"
#include "random.h"
#include "sd_diskio.h"
#include "mpexception.h"
#include "version.h"
#include "timeutils.h"
/// \module os - basic "operating system" services
///
@ -285,7 +285,7 @@ STATIC mp_obj_t os_stat(mp_obj_t path_in) {
} else {
mode |= 0x8000; // stat.S_IFREG
}
mp_int_t seconds = mod_time_seconds_since_2000(
mp_int_t seconds = timeutils_seconds_since_2000(
1980 + ((fno.fdate >> 9) & 0x7f),
(fno.fdate >> 5) & 0x0f,
fno.fdate & 0x1f,

185
cc3200/mods/modutime.c
View File

@ -32,7 +32,7 @@
#include MICROPY_HAL_H
#include "py/nlr.h"
#include "py/obj.h"
#include "modutime.h"
#include "timeutils.h"
#include "inc/hw_types.h"
#include "inc/hw_ints.h"
#include "inc/hw_memmap.h"
@ -41,126 +41,11 @@
#include "pybrtc.h"
#include "mpexception.h"
// 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 relative to 2000-01-01.
#define LEAPOCH ((31 + 29) * 86400)
#define DAYS_PER_400Y (365*400 + 97)
#define DAYS_PER_100Y (365*100 + 24)
#define DAYS_PER_4Y (365*4 + 1)
/// \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, 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 mod_time_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
STATIC mp_uint_t mod_time_year_day(mp_uint_t year, mp_uint_t month, mp_uint_t date) {
mp_uint_t yday = days_since_jan1[month - 1] + date;
if (month >= 3 && is_leap_year(year)) {
yday += 1;
}
return yday;
}
// 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
+ minute * 60
+ hour * 3600
+ (mod_time_year_day(year, month, date) - 1
+ ((year - 2000 + 3) / 4) // add a day each 4 years starting with 2001
- ((year - 2000 + 99) / 100) // subtract a day each 100 years starting with 2001
+ ((year - 2000 + 399) / 400) // add a day each 400 years starting with 2001
) * 86400
+ (year - 2000) * 31536000;
}
void mod_time_seconds_since_2000_to_struct_time(mp_uint_t t, mod_struct_time *tm) {
// The following algorithm was adapted from musl's __secs_to_tm and adapted
// for differences in Micro Python'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);
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 = mod_time_year_day(tm->tm_year, tm->tm_mon, tm->tm_mday);
}
/// \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)
@ -175,14 +60,14 @@ void mod_time_seconds_since_2000_to_struct_time(mp_uint_t t, mod_struct_time *tm
/// yearday is 1-366
STATIC mp_obj_t time_localtime(mp_uint_t n_args, const mp_obj_t *args) {
if (n_args == 0 || args[0] == mp_const_none) {
mod_struct_time tm;
timeutils_struct_time_t tm;
uint32_t seconds;
uint16_t mseconds;
// get the seconds and the milliseconds from the RTC
MAP_PRCMRTCGet(&seconds, &mseconds);
mseconds = RTC_CYCLES_U16MS(mseconds);
mod_time_seconds_since_2000_to_struct_time(seconds, &tm);
timeutils_seconds_since_2000_to_struct_time(seconds, &tm);
mp_obj_t tuple[8] = {
mp_obj_new_int(tm.tm_year),
@ -197,8 +82,8 @@ STATIC mp_obj_t time_localtime(mp_uint_t n_args, const mp_obj_t *args) {
return mp_obj_new_tuple(8, tuple);
} else {
mp_int_t seconds = mp_obj_get_int(args[0]);
mod_struct_time tm;
mod_time_seconds_since_2000_to_struct_time(seconds, &tm);
timeutils_struct_time_t tm;
timeutils_seconds_since_2000_to_struct_time(seconds, &tm);
mp_obj_t tuple[8] = {
tuple[0] = mp_obj_new_int(tm.tm_year),
tuple[1] = mp_obj_new_int(tm.tm_mon),
@ -231,64 +116,10 @@ STATIC mp_obj_t time_mktime(mp_obj_t tuple) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, mpexception_num_type_invalid_arguments));
}
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]);
return mp_obj_new_int_from_uint(timeutils_mktime(mp_obj_get_int(elem[0]),
mp_obj_get_int(elem[1]), mp_obj_get_int(elem[2]), mp_obj_get_int(elem[3]),
mp_obj_get_int(elem[4]), 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 += mod_time_days_in_month(year, month);
}
while (mday > mod_time_days_in_month(year, month)) {
mday -= mod_time_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);

10
cc3200/mods/pybrtc.c
View File

@ -31,7 +31,6 @@
#include MICROPY_HAL_H
#include "py/obj.h"
#include "py/runtime.h"
#include "modutime.h"
#include "inc/hw_types.h"
#include "inc/hw_ints.h"
#include "inc/hw_memmap.h"
@ -40,6 +39,7 @@
#include "pybrtc.h"
#include "pybsleep.h"
#include "mpcallback.h"
#include "timeutils.h"
/// \moduleref pyb
/// \class RTC - real time clock
@ -82,7 +82,7 @@ void pybrtc_init(void) {
// fresh reset; configure the RTC Calendar
// set the date to 1st Jan 2015
// set the time to 00:00:00
uint32_t seconds = mod_time_seconds_since_2000(2015, 1, 1, 0, 0, 0);
uint32_t seconds = timeutils_seconds_since_2000(2015, 1, 1, 0, 0, 0);
// Mark the RTC in use first
MAP_PRCMRTCInUseSet();
@ -137,7 +137,7 @@ STATIC void pyb_rtc_callback_disable (mp_obj_t self_in) {
/// `weekday` is 0-6 for Monday through Sunday.
///
mp_obj_t pyb_rtc_datetime(mp_uint_t n_args, const mp_obj_t *args) {
mod_struct_time tm;
timeutils_struct_time_t tm;
uint32_t seconds;
uint16_t mseconds;
@ -145,7 +145,7 @@ mp_obj_t pyb_rtc_datetime(mp_uint_t n_args, const mp_obj_t *args) {
// get the seconds and the milliseconds from the RTC
MAP_PRCMRTCGet(&seconds, &mseconds);
mseconds = RTC_CYCLES_U16MS(mseconds);
mod_time_seconds_since_2000_to_struct_time(seconds, &tm);
timeutils_seconds_since_2000_to_struct_time(seconds, &tm);
mp_obj_t tuple[8] = {
mp_obj_new_int(tm.tm_year),
@ -172,7 +172,7 @@ mp_obj_t pyb_rtc_datetime(mp_uint_t n_args, const mp_obj_t *args) {
tm.tm_sec = mp_obj_get_int(items[6]);
mseconds = mp_obj_get_int(items[7]);
seconds = mod_time_seconds_since_2000(tm.tm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
seconds = timeutils_seconds_since_2000(tm.tm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
mseconds = RTC_U16MS_CYCLES(mseconds);
MAP_PRCMRTCSet(seconds, mseconds);

211
lib/timeutils/timeutils.c Normal file
View File

@ -0,0 +1,211 @@
/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
* Copyright (c) 2015 Daniel Campora
*
* 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 "py/obj.h"
#include "timeutils.h"
// 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)
#define DAYS_PER_400Y (365*400 + 97)
#define DAYS_PER_100Y (365*100 + 24)
#define DAYS_PER_4Y (365*4 + 1)
STATIC const uint16_t days_since_jan1[]= { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 };
bool timeutils_is_leap_year(mp_uint_t year) {
return (year % 4 == 0 && year % 100 != 0) || year % 400 == 0;
}
// month is one based
mp_uint_t timeutils_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 && timeutils_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 timeutils_year_day(mp_uint_t year, mp_uint_t month, mp_uint_t date) {
mp_uint_t yday = days_since_jan1[month - 1] + date;
if (month >= 3 && timeutils_is_leap_year(year)) {
yday += 1;
}
return yday;
}
void timeutils_seconds_since_2000_to_struct_time(mp_uint_t t, timeutils_struct_time_t *tm) {
// The following algorithm was adapted from musl's __secs_to_tm and adapted
// for differences in Micro Python'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);
/* We will compute tm_yday at the very end
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_yday++; // Make one based
*/
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 = timeutils_year_day(tm->tm_year, tm->tm_mon, tm->tm_mday);
}
// returns the number of seconds, as an integer, since 2000-01-01
mp_uint_t timeutils_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
+ minute * 60
+ hour * 3600
+ (timeutils_year_day(year, month, date) - 1
+ ((year - 2000 + 3) / 4) // add a day each 4 years starting with 2001
- ((year - 2000 + 99) / 100) // subtract a day each 100 years starting with 2001
+ ((year - 2000 + 399) / 400) // add a day each 400 years starting with 2001
) * 86400
+ (year - 2000) * 31536000;
}
mp_uint_t timeutils_mktime(mp_uint_t year, mp_uint_t month, mp_uint_t mday,
mp_uint_t hours, mp_uint_t minutes, mp_uint_t seconds) {
// 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 += timeutils_days_in_month(year, month);
}
while (mday > timeutils_days_in_month(year, month)) {
mday -= timeutils_days_in_month(year, month);
if (++month == 13) {
month = 1;
year++;
}
}
return timeutils_seconds_since_2000(year, month, mday, hours, minutes, seconds);
}

23
cc3200/mods/modutime.h → lib/timeutils/timeutils.h
View File

@ -25,10 +25,10 @@
* THE SOFTWARE.
*/
#ifndef MODUTIME_H_
#define MODUTIME_H_
#ifndef __MICROPY_INCLUDED_LIB_TIMEUTILS_H__
#define __MICROPY_INCLUDED_LIB_TIMEUTILS_H__
typedef struct {
typedef struct _timeutils_struct_time_t {
uint16_t tm_year; // i.e. 2014
uint8_t tm_mon; // 1..12
uint8_t tm_mday; // 1..31
@ -37,12 +37,19 @@ typedef struct {
uint8_t tm_sec; // 0..59
uint8_t tm_wday; // 0..6 0 = Monday
uint16_t tm_yday; // 1..366
} mod_struct_time;
} timeutils_struct_time_t;
bool timeutils_is_leap_year(mp_uint_t year);
mp_uint_t timeutils_days_in_month(mp_uint_t year, mp_uint_t month);
mp_uint_t timeutils_year_day(mp_uint_t year, mp_uint_t month, mp_uint_t date);
extern 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);
void timeutils_seconds_since_2000_to_struct_time(mp_uint_t t,
timeutils_struct_time_t *tm);
extern void mod_time_seconds_since_2000_to_struct_time(mp_uint_t t, mod_struct_time *tm);
mp_uint_t timeutils_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);
#endif // MODUTIME_H_
mp_uint_t timeutils_mktime(mp_uint_t year, mp_uint_t month, mp_uint_t mday,
mp_uint_t hours, mp_uint_t minutes, mp_uint_t seconds);
#endif // __MICROPY_INCLUDED_LIB_TIMEUTILS_H__

2
stmhal/Makefile
View File

@ -42,6 +42,7 @@ INC += -I$(USBDEV_DIR)/core/inc -I$(USBDEV_DIR)/class/inc
#INC += -I$(USBHOST_DIR)
INC += -I../lib/mp-readline
INC += -I../lib/netutils
INC += -I../lib/timeutils
CFLAGS_CORTEX_M4 = -mthumb -mtune=cortex-m4 -mabi=aapcs-linux -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard -fsingle-precision-constant -Wdouble-promotion
CFLAGS = $(INC) -Wall -Wpointer-arith -Werror -ansi -std=gnu99 -nostdlib $(CFLAGS_MOD) $(CFLAGS_CORTEX_M4) $(COPT)
@ -94,6 +95,7 @@ SRC_LIB = $(addprefix lib/,\
fatfs/option/ccsbcs.c \
mp-readline/readline.c \
netutils/netutils.c \
timeutils/timeutils.c \
)
SRC_C = \

3
stmhal/moduos.c
View File

@ -34,6 +34,7 @@
#include "genhdr/mpversion.h"
#include "lib/fatfs/ff.h"
#include "lib/fatfs/diskio.h"
#include "timeutils.h"
#include "rng.h"
#include "file.h"
#include "sdcard.h"
@ -322,7 +323,7 @@ STATIC mp_obj_t os_stat(mp_obj_t path_in) {
} else {
mode |= 0x8000; // stat.S_IFREG
}
mp_int_t seconds = mod_time_seconds_since_2000(
mp_int_t seconds = timeutils_seconds_since_2000(
1980 + ((fno.fdate >> 9) & 0x7f),
(fno.fdate >> 5) & 0x0f,
fno.fdate & 0x1f,

205
stmhal/modutime.c
View File

@ -30,6 +30,7 @@
#include "py/nlr.h"
#include "py/obj.h"
#include "timeutils.h"
#include "portmodules.h"
#include "rtc.h"
@ -38,141 +39,6 @@
/// 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, 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 mod_time_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
STATIC mp_uint_t mod_time_year_day(mp_uint_t year, mp_uint_t month, mp_uint_t date) {
mp_uint_t yday = days_since_jan1[month - 1] + date;
if (month >= 3 && is_leap_year(year)) {
yday += 1;
}
return yday;
}
// 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
+ minute * 60
+ hour * 3600
+ (mod_time_year_day(year, month, date) - 1
+ ((year - 2000 + 3) / 4) // add a day each 4 years starting with 2001
- ((year - 2000 + 99) / 100) // subtract a day each 100 years starting with 2001
+ ((year - 2000 + 399) / 400) // add a day each 400 years starting with 2001
) * 86400
+ (year - 2000) * 31536000;
}
// 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)
#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;
STATIC void mod_time_seconds_since_2000_to_struct_time(mp_uint_t t, mod_struct_time *tm) {
// The following algorithm was adapted from musl's __secs_to_tm and adapted
// for differences in Micro Python'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);
/* We will compute tm_yday at the very end
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_yday++; // Make one based
*/
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 = mod_time_year_day(tm->tm_year, tm->tm_mon, tm->tm_mday);
}
/// \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)
@ -201,13 +67,13 @@ STATIC mp_obj_t time_localtime(mp_uint_t n_args, const mp_obj_t *args) {
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(timeutils_year_day(2000 + date.Year, date.Month, date.Date)),
};
return mp_obj_new_tuple(8, tuple);
} else {
mp_int_t seconds = mp_obj_get_int(args[0]);
mod_struct_time tm;
mod_time_seconds_since_2000_to_struct_time(seconds, &tm);
timeutils_struct_time_t tm;
timeutils_seconds_since_2000_to_struct_time(seconds, &tm);
mp_obj_t tuple[8] = {
tuple[0] = mp_obj_new_int(tm.tm_year),
tuple[1] = mp_obj_new_int(tm.tm_mon),
@ -240,64 +106,9 @@ STATIC mp_obj_t time_mktime(mp_obj_t tuple) {
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]);
// Normalise 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 += mod_time_days_in_month(year, month);
}
while (mday > mod_time_days_in_month(year, month)) {
mday -= mod_time_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));
return mp_obj_new_int_from_uint(timeutils_mktime(mp_obj_get_int(elem[0]),
mp_obj_get_int(elem[1]), mp_obj_get_int(elem[2]), mp_obj_get_int(elem[3]),
mp_obj_get_int(elem[4]), mp_obj_get_int(elem[5])));
}
MP_DEFINE_CONST_FUN_OBJ_1(time_mktime_obj, time_mktime);
@ -328,7 +139,7 @@ STATIC mp_obj_t time_time(void) {
RTC_TimeTypeDef time;
HAL_RTC_GetTime(&RTCHandle, &time, FORMAT_BIN);
HAL_RTC_GetDate(&RTCHandle, &date, FORMAT_BIN);
return mp_obj_new_int(mod_time_seconds_since_2000(2000 + date.Year, date.Month, date.Date, time.Hours, time.Minutes, time.Seconds));
return mp_obj_new_int(timeutils_seconds_since_2000(2000 + date.Year, date.Month, date.Date, time.Hours, time.Minutes, time.Seconds));
}
MP_DEFINE_CONST_FUN_OBJ_0(time_time_obj, time_time);

2
stmhal/portmodules.h
View File

@ -34,5 +34,3 @@ extern const mp_obj_module_t mp_module_usocket;
// additional helper functions exported by the modules
MP_DECLARE_CONST_FUN_OBJ(mod_os_sync_obj);
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);