add circuitpython code

1 files changed, 90 insertions, 0 deletions

diff --git a/circuitpython/shared-bindings/rtc/__init__.c b/circuitpython/shared-bindings/rtc/__init__.c
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+++ b/circuitpython/shared-bindings/rtc/__init__.c
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+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Noralf Trønnes
+ * SPDX-FileCopyrightText: 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 "py/obj.h"
+#include "py/runtime.h"
+#include "shared-bindings/rtc/__init__.h"
+#include "shared-bindings/rtc/RTC.h"
+#include "shared-bindings/time/__init__.h"
+
+//| """Real Time Clock
+//|
+//| The `rtc` module provides support for a Real Time Clock. You can access and manage the
+//| RTC using :class:`rtc.RTC`. It also backs the :func:`time.time` and :func:`time.localtime`
+//| functions using the onboard RTC if present."""
+//|
+
+void rtc_reset(void) {
+    MP_STATE_VM(rtc_time_source) = (mp_obj_t)&rtc_rtc_obj;
+}
+
+mp_obj_t rtc_get_time_source_time(void) {
+    mp_obj_t datetime = mp_load_attr(MP_STATE_VM(rtc_time_source), MP_QSTR_datetime);
+    timeutils_struct_time_t tm;
+    struct_time_to_tm(datetime, &tm);
+    // This sets tm_wday and tm_yday
+    return struct_time_from_tm(&tm);
+}
+
+//| def set_time_source(rtc: RTC) -> None:
+//|     """Sets the RTC time source used by :func:`time.localtime`.
+//|     The default is :class:`rtc.RTC`, but it's useful to use this to override the
+//|     time source for testing purposes. For example::
+//|
+//|       import rtc
+//|       import time
+//|
+//|       class RTC(object):
+//|           @property
+//|           def datetime(self):
+//|               return time.struct_time((2018, 3, 17, 21, 1, 47, 0, 0, 0))
+//|
+//|       r = RTC()
+//|       rtc.set_time_source(r)"""
+//|     ...
+//|
+STATIC mp_obj_t rtc_set_time_source(mp_obj_t time_source) {
+    MP_STATE_VM(rtc_time_source) = time_source;
+
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_1(rtc_set_time_source_obj, rtc_set_time_source);
+
+STATIC const mp_rom_map_elem_t rtc_module_globals_table[] = {
+    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_rtc) },
+    { MP_ROM_QSTR(MP_QSTR_set_time_source), MP_ROM_PTR(&rtc_set_time_source_obj) },
+    { MP_ROM_QSTR(MP_QSTR_RTC), MP_ROM_PTR(&rtc_rtc_type) },
+};
+
+STATIC MP_DEFINE_CONST_DICT(rtc_module_globals, rtc_module_globals_table);
+
+const mp_obj_module_t rtc_module = {
+    .base = { &mp_type_module },
+    .globals = (mp_obj_dict_t *)&rtc_module_globals,
+};
+
+MP_REGISTER_MODULE(MP_QSTR_rtc, rtc_module, CIRCUITPY_RTC);