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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 "Eric Poulsen" <eric@zyxod.com>
* Copyright (c) 2017 "Tom Manning" <tom@manningetal.com>
*
* 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 <stdio.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
#include "driver/gpio.h"
#include "py/nlr.h"
#include "py/obj.h"
#include "py/runtime.h"
#include "py/mphal.h"
#include "timeutils.h"
#include "modmachine.h"
#include "machine_rtc.h"
typedef struct _machine_rtc_obj_t {
mp_obj_base_t base;
} machine_rtc_obj_t;
/* There is 8K of rtc_slow_memory, but some is used by the system software
If the MICROPY_HW_RTC_USER_MEM_MAX is set too high, the following compile error will happen:
region `rtc_slow_seg' overflowed by N bytes
The current system software allows almost 4096 to be used.
To avoid running into issues if the system software uses more, 2048 was picked as a max length
You can also change this max length at compile time by defining MICROPY_HW_RTC_USER_MEM_MAX
either on your make line, or in your board config.
If MICROPY_HW_RTC_USER_MEM_MAX is set to 0, the RTC.memory() functionality will be not
be compiled which frees some extra flash and RTC memory.
*/
#ifndef MICROPY_HW_RTC_USER_MEM_MAX
#define MICROPY_HW_RTC_USER_MEM_MAX 2048
#endif
// Optionally compile user memory functionality if the size of memory is greater than 0
#if MICROPY_HW_RTC_USER_MEM_MAX > 0
#define MEM_MAGIC 0x75507921
RTC_DATA_ATTR uint32_t rtc_user_mem_magic;
RTC_DATA_ATTR uint16_t rtc_user_mem_len;
RTC_DATA_ATTR uint8_t rtc_user_mem_data[MICROPY_HW_RTC_USER_MEM_MAX];
#endif
// singleton RTC object
STATIC const machine_rtc_obj_t machine_rtc_obj = {{&machine_rtc_type}};
machine_rtc_config_t machine_rtc_config = {
.ext1_pins = 0,
.ext0_pin = -1
};
STATIC mp_obj_t machine_rtc_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
// check arguments
mp_arg_check_num(n_args, n_kw, 0, 0, false);
// return constant object
return (mp_obj_t)&machine_rtc_obj;
}
STATIC mp_obj_t machine_rtc_datetime_helper(mp_uint_t n_args, const mp_obj_t *args) {
if (n_args == 1) {
// Get time
struct timeval tv;
gettimeofday(&tv, NULL);
timeutils_struct_time_t tm;
timeutils_seconds_since_2000_to_struct_time(tv.tv_sec, &tm);
mp_obj_t tuple[8] = {
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_wday),
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(tv.tv_usec)
};
return mp_obj_new_tuple(8, tuple);
} else {
// Set time
mp_obj_t *items;
mp_obj_get_array_fixed_n(args[1], 8, &items);
struct timeval tv = {0};
tv.tv_sec = timeutils_seconds_since_2000(mp_obj_get_int(items[0]), mp_obj_get_int(items[1]), mp_obj_get_int(items[2]), mp_obj_get_int(items[4]), mp_obj_get_int(items[5]), mp_obj_get_int(items[6]));
tv.tv_usec = mp_obj_get_int(items[7]);
settimeofday(&tv, NULL);
return mp_const_none;
}
}
STATIC mp_obj_t machine_rtc_datetime(mp_uint_t n_args, const mp_obj_t *args) {
return machine_rtc_datetime_helper(n_args, args);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_rtc_datetime_obj, 1, 2, machine_rtc_datetime);
STATIC mp_obj_t machine_rtc_init(mp_obj_t self_in, mp_obj_t date) {
mp_obj_t args[2] = {self_in, date};
machine_rtc_datetime_helper(2, args);
#if MICROPY_HW_RTC_USER_MEM_MAX > 0
if (rtc_user_mem_magic != MEM_MAGIC) {
rtc_user_mem_magic = MEM_MAGIC;
rtc_user_mem_len = 0;
}
#endif
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(machine_rtc_init_obj, machine_rtc_init);
#if MICROPY_HW_RTC_USER_MEM_MAX > 0
STATIC mp_obj_t machine_rtc_memory(mp_uint_t n_args, const mp_obj_t *args) {
if (n_args == 1) {
// read RTC memory
uint8_t rtcram[MICROPY_HW_RTC_USER_MEM_MAX];
memcpy((char*)rtcram, (char*)rtc_user_mem_data, rtc_user_mem_len);
return mp_obj_new_bytes(rtcram, rtc_user_mem_len);
} else {
// write RTC memory
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(args[1], &bufinfo, MP_BUFFER_READ);
if (bufinfo.len > MICROPY_HW_RTC_USER_MEM_MAX) {
mp_raise_ValueError("buffer too long");
}
memcpy( (char *) rtc_user_mem_data, (char *) bufinfo.buf, bufinfo.len);
rtc_user_mem_len = bufinfo.len;
return mp_const_none;
}
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_rtc_memory_obj, 1, 2, machine_rtc_memory);
#endif
STATIC const mp_rom_map_elem_t machine_rtc_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&machine_rtc_init_obj) },
{ MP_ROM_QSTR(MP_QSTR_datetime), MP_ROM_PTR(&machine_rtc_datetime_obj) },
#if MICROPY_HW_RTC_USER_MEM_MAX > 0
{ MP_ROM_QSTR(MP_QSTR_memory), MP_ROM_PTR(&machine_rtc_memory_obj) },
#endif
};
STATIC MP_DEFINE_CONST_DICT(machine_rtc_locals_dict, machine_rtc_locals_dict_table);
const mp_obj_type_t machine_rtc_type = {
{ &mp_type_type },
.name = MP_QSTR_RTC,
.make_new = machine_rtc_make_new,
.locals_dict = (mp_obj_t)&machine_rtc_locals_dict,
};
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