143 lines
5.5 KiB
C
143 lines
5.5 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2013-2016 Damien P. George
|
|
* Copyright (c) 2016 Paul Sokolovsky
|
|
*
|
|
* 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/mpconfig.h"
|
|
#if MICROPY_PY_UTIME_MP_HAL
|
|
|
|
#include <string.h>
|
|
|
|
#include "py/obj.h"
|
|
#include "py/mphal.h"
|
|
#include "py/smallint.h"
|
|
#include "py/runtime.h"
|
|
#include "extmod/utime_mphal.h"
|
|
#include "shared/timeutils/timeutils.h"
|
|
|
|
// mktime()
|
|
// This is the inverse function of localtime. Its argument is a full 8-tuple
|
|
// which expresses a time as per localtime. It returns an integer which is
|
|
// the number of seconds since the Epoch (eg 1st Jan 1970, or 1st Jan 2000).
|
|
STATIC mp_obj_t time_mktime(mp_obj_t tuple) {
|
|
size_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) {
|
|
mp_raise_TypeError(MP_ERROR_TEXT("mktime needs a tuple of length 8 or 9"));
|
|
}
|
|
|
|
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(mp_utime_mktime_obj, time_mktime);
|
|
|
|
STATIC mp_obj_t time_sleep(mp_obj_t seconds_o) {
|
|
#if MICROPY_PY_BUILTINS_FLOAT
|
|
mp_hal_delay_ms((mp_uint_t)(1000 * mp_obj_get_float(seconds_o)));
|
|
#else
|
|
mp_hal_delay_ms(1000 * mp_obj_get_int(seconds_o));
|
|
#endif
|
|
return mp_const_none;
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_1(mp_utime_sleep_obj, time_sleep);
|
|
|
|
STATIC mp_obj_t time_sleep_ms(mp_obj_t arg) {
|
|
mp_int_t ms = mp_obj_get_int(arg);
|
|
if (ms >= 0) {
|
|
mp_hal_delay_ms(ms);
|
|
}
|
|
return mp_const_none;
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_1(mp_utime_sleep_ms_obj, time_sleep_ms);
|
|
|
|
STATIC mp_obj_t time_sleep_us(mp_obj_t arg) {
|
|
mp_int_t us = mp_obj_get_int(arg);
|
|
if (us > 0) {
|
|
mp_hal_delay_us(us);
|
|
}
|
|
return mp_const_none;
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_1(mp_utime_sleep_us_obj, time_sleep_us);
|
|
|
|
STATIC mp_obj_t time_ticks_ms(void) {
|
|
return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_ms() & (MICROPY_PY_UTIME_TICKS_PERIOD - 1));
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_0(mp_utime_ticks_ms_obj, time_ticks_ms);
|
|
|
|
STATIC mp_obj_t time_ticks_us(void) {
|
|
return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_us() & (MICROPY_PY_UTIME_TICKS_PERIOD - 1));
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_0(mp_utime_ticks_us_obj, time_ticks_us);
|
|
|
|
STATIC mp_obj_t time_ticks_cpu(void) {
|
|
return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_cpu() & (MICROPY_PY_UTIME_TICKS_PERIOD - 1));
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_0(mp_utime_ticks_cpu_obj, time_ticks_cpu);
|
|
|
|
STATIC mp_obj_t time_ticks_diff(mp_obj_t end_in, mp_obj_t start_in) {
|
|
// we assume that the arguments come from ticks_xx so are small ints
|
|
mp_uint_t start = MP_OBJ_SMALL_INT_VALUE(start_in);
|
|
mp_uint_t end = MP_OBJ_SMALL_INT_VALUE(end_in);
|
|
// Optimized formula avoiding if conditions. We adjust difference "forward",
|
|
// wrap it around and adjust back.
|
|
mp_int_t diff = ((end - start + MICROPY_PY_UTIME_TICKS_PERIOD / 2) & (MICROPY_PY_UTIME_TICKS_PERIOD - 1))
|
|
- MICROPY_PY_UTIME_TICKS_PERIOD / 2;
|
|
return MP_OBJ_NEW_SMALL_INT(diff);
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_2(mp_utime_ticks_diff_obj, time_ticks_diff);
|
|
|
|
STATIC mp_obj_t time_ticks_add(mp_obj_t ticks_in, mp_obj_t delta_in) {
|
|
// we assume that first argument come from ticks_xx so is small int
|
|
mp_uint_t ticks = MP_OBJ_SMALL_INT_VALUE(ticks_in);
|
|
mp_uint_t delta = mp_obj_get_int(delta_in);
|
|
|
|
// Check that delta does not overflow the range that ticks_diff can handle.
|
|
// This ensures the following:
|
|
// - ticks_diff(ticks_add(T, delta), T) == delta
|
|
// - ticks_diff(T, ticks_add(T, delta)) == -delta
|
|
// The latter requires excluding delta=-TICKS_PERIOD/2.
|
|
//
|
|
// This unsigned comparison is equivalent to a signed comparison of:
|
|
// delta <= -TICKS_PERIOD/2 || delta >= TICKS_PERIOD/2
|
|
if (delta + MICROPY_PY_UTIME_TICKS_PERIOD / 2 - 1 >= MICROPY_PY_UTIME_TICKS_PERIOD - 1) {
|
|
mp_raise_msg(&mp_type_OverflowError, MP_ERROR_TEXT("ticks interval overflow"));
|
|
}
|
|
|
|
return MP_OBJ_NEW_SMALL_INT((ticks + delta) & (MICROPY_PY_UTIME_TICKS_PERIOD - 1));
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_2(mp_utime_ticks_add_obj, time_ticks_add);
|
|
|
|
// Returns the number of nanoseconds since the Epoch, as an integer.
|
|
STATIC mp_obj_t time_time_ns(void) {
|
|
return mp_obj_new_int_from_ull(mp_hal_time_ns());
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_0(mp_utime_time_ns_obj, time_time_ns);
|
|
|
|
#endif // MICROPY_PY_UTIME_MP_HAL
|