/* * This file is part of the Micro Python project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2013, 2014 Damien P. George * * 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 #include #include STM32_HAL_H #include "py/nlr.h" #include "py/smallint.h" #include "py/obj.h" #include "systick.h" #include "timeutils.h" #include "portmodules.h" #include "rtc.h" /// \module time - time related functions /// /// The `time` module provides functions for getting the current time and date, /// and for sleeping. /// \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(mp_uint_t 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_init_finalise(); 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(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]); 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), tuple[2] = mp_obj_new_int(tm.tm_mday), tuple[3] = mp_obj_new_int(tm.tm_hour), tuple[4] = mp_obj_new_int(tm.tm_min), tuple[5] = mp_obj_new_int(tm.tm_sec), tuple[6] = mp_obj_new_int(tm.tm_wday), tuple[7] = mp_obj_new_int(tm.tm_yday), }; return mp_obj_new_tuple(8, tuple); } } 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) { mp_uint_t 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)); } 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); /// \function time() /// Returns the number of seconds, as an integer, since 1/1/2000. STATIC mp_obj_t time_time(void) { // get date and time // note: need to call get time then get date to correctly access the registers rtc_init_finalise(); RTC_DateTypeDef date; RTC_TimeTypeDef time; HAL_RTC_GetTime(&RTCHandle, &time, FORMAT_BIN); HAL_RTC_GetDate(&RTCHandle, &date, FORMAT_BIN); 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); /// \function sleep(seconds) /// Sleep for the given number of seconds. Seconds can be a floating-point number to /// sleep for a fractional number of seconds. STATIC mp_obj_t time_sleep(mp_obj_t seconds_o) { #if MICROPY_PY_BUILTINS_FLOAT if (MP_OBJ_IS_INT(seconds_o)) { #endif HAL_Delay(1000 * mp_obj_get_int(seconds_o)); #if MICROPY_PY_BUILTINS_FLOAT } else { HAL_Delay((uint32_t)(1000 * mp_obj_get_float(seconds_o))); } #endif return mp_const_none; } MP_DEFINE_CONST_FUN_OBJ_1(time_sleep_obj, time_sleep); STATIC mp_obj_t time_sleep_ms(mp_obj_t ms_in) { mp_int_t ms = mp_obj_get_int(ms_in); if (ms > 0) { HAL_Delay(ms); } return mp_const_none; } MP_DEFINE_CONST_FUN_OBJ_1(time_sleep_ms_obj, time_sleep_ms); STATIC mp_obj_t time_sleep_us(mp_obj_t usec_in) { mp_int_t usec = mp_obj_get_int(usec_in); if (usec > 0) { sys_tick_udelay(usec); } return mp_const_none; } MP_DEFINE_CONST_FUN_OBJ_1(time_sleep_us_obj, time_sleep_us); STATIC mp_obj_t time_ticks_ms(void) { return MP_OBJ_NEW_SMALL_INT(HAL_GetTick() & MP_SMALL_INT_POSITIVE_MASK); } STATIC MP_DEFINE_CONST_FUN_OBJ_0(time_ticks_ms_obj, time_ticks_ms); STATIC mp_obj_t time_ticks_us(void) { return MP_OBJ_NEW_SMALL_INT(sys_tick_get_microseconds() & MP_SMALL_INT_POSITIVE_MASK); } STATIC MP_DEFINE_CONST_FUN_OBJ_0(time_ticks_us_obj, time_ticks_us); STATIC mp_obj_t time_ticks_cpu(void) { static bool enabled = false; if (!enabled) { CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk; DWT->CYCCNT = 0; DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk; enabled = true; } return MP_OBJ_NEW_SMALL_INT(DWT->CYCCNT & MP_SMALL_INT_POSITIVE_MASK); } STATIC MP_DEFINE_CONST_FUN_OBJ_0(time_ticks_cpu_obj, time_ticks_cpu); STATIC mp_obj_t time_ticks_diff(mp_obj_t start_in, mp_obj_t end_in) { // we assume that the arguments come from ticks_xx so are small ints uint32_t start = MP_OBJ_SMALL_INT_VALUE(start_in); uint32_t end = MP_OBJ_SMALL_INT_VALUE(end_in); return MP_OBJ_NEW_SMALL_INT((end - start) & MP_SMALL_INT_POSITIVE_MASK); } STATIC MP_DEFINE_CONST_FUN_OBJ_2(time_ticks_diff_obj, time_ticks_diff); STATIC const mp_map_elem_t time_module_globals_table[] = { { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_utime) }, { 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_time), (mp_obj_t)&time_time_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_sleep), (mp_obj_t)&time_sleep_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_sleep_ms), (mp_obj_t)&time_sleep_ms_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_sleep_us), (mp_obj_t)&time_sleep_us_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_ms), (mp_obj_t)&time_ticks_ms_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_us), (mp_obj_t)&time_ticks_us_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_cpu), (mp_obj_t)&time_ticks_cpu_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_ticks_diff), (mp_obj_t)&time_ticks_diff_obj }, }; STATIC MP_DEFINE_CONST_DICT(time_module_globals, time_module_globals_table); const mp_obj_module_t mp_module_utime = { .base = { &mp_type_module }, .name = MP_QSTR_utime, .globals = (mp_obj_dict_t*)&time_module_globals, };