circuitpython/ports/esp32s2/common-hal/alarm/SleepMemory.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2020 microDev
* Copyright (c) 2020 Dan Halbert for Adafruit Industries
*
* 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 <string.h>
#include "py/runtime.h"
#include "common-hal/alarm/SleepMemory.h"
#include "esp_log.h"
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#include "esp_sleep.h"
// Data storage for singleton instance of SleepMemory.
// Might be RTC_SLOW_MEM or RTC_FAST_MEM, depending on setting of CONFIG_ESP32S2_RTCDATA_IN_FAST_MEM.
static RTC_DATA_ATTR uint8_t _sleep_mem[SLEEP_MEMORY_LENGTH];
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void alarm_sleep_memory_reset(void) {
// ESP-IDF build system takes care of doing esp_sleep_pd_config() or the equivalentwith
// the correct settings, depending on which RTC mem we are using.
// https://docs.espressif.com/projects/esp-idf/en/latest/esp32s2/api-reference/system/sleep_modes.html#power-down-of-rtc-peripherals-and-memories
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}
uint32_t common_hal_alarm_sleep_memory_get_length(alarm_sleep_memory_obj_t *self) {
return sizeof(_sleep_mem);
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}
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bool common_hal_alarm_sleep_memory_set_bytes(alarm_sleep_memory_obj_t *self, uint32_t start_index, const uint8_t *values, uint32_t len) {
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if (start_index + len > sizeof(_sleep_mem)) {
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return false;
}
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memcpy((uint8_t *)(_sleep_mem + start_index), values, len);
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return true;
}
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void common_hal_alarm_sleep_memory_get_bytes(alarm_sleep_memory_obj_t *self, uint32_t start_index, uint8_t *values, uint32_t len) {
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if (start_index + len > sizeof(_sleep_mem)) {
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return;
}
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memcpy(values, (uint8_t *)(_sleep_mem + start_index), len);
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}