127 lines
4.1 KiB
C
127 lines
4.1 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Dan Halbert for Adafruit Industries
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* Copyright (c) 2019 Lucian Copeland for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <math.h>
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#include <string.h>
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#include "py/runtime.h"
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#include "common-hal/microcontroller/Processor.h"
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#include "shared-bindings/microcontroller/ResetReason.h"
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#include "supervisor/shared/translate.h"
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#include "esp_sleep.h"
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#include "esp_system.h"
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#include "soc/efuse_reg.h"
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#include "components/driver/esp32s2/include/driver/temp_sensor.h"
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float common_hal_mcu_processor_get_temperature(void) {
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float tsens_out;
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temp_sensor_config_t temp_sensor = TSENS_CONFIG_DEFAULT(); // DEFAULT: range:-10℃ ~ 80℃, error < 1℃.
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temp_sensor_set_config(temp_sensor);
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temp_sensor_start();
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temp_sensor_read_celsius(&tsens_out);
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temp_sensor_stop();
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return tsens_out;
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}
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float common_hal_mcu_processor_get_voltage(void) {
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return NAN;
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}
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uint32_t common_hal_mcu_processor_get_frequency(void) {
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return 0;
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}
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STATIC uint8_t swap_nibbles(uint8_t v) {
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return ((v << 4) | (v >> 4)) & 0xff;
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}
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void common_hal_mcu_processor_get_uid(uint8_t raw_id[]) {
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memset(raw_id, 0, COMMON_HAL_MCU_PROCESSOR_UID_LENGTH);
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uint8_t *ptr = &raw_id[COMMON_HAL_MCU_PROCESSOR_UID_LENGTH - 1];
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// MAC address contains 48 bits (6 bytes), 32 in the low order word
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uint32_t mac_address_part = REG_READ(EFUSE_RD_MAC_SPI_SYS_0_REG);
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*ptr-- = swap_nibbles(mac_address_part & 0xff);
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mac_address_part >>= 8;
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*ptr-- = swap_nibbles(mac_address_part & 0xff);
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mac_address_part >>= 8;
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*ptr-- = swap_nibbles(mac_address_part & 0xff);
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mac_address_part >>= 8;
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*ptr-- = swap_nibbles(mac_address_part & 0xff);
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// and 16 in the high order word
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mac_address_part = REG_READ(EFUSE_RD_MAC_SPI_SYS_1_REG);
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*ptr-- = swap_nibbles(mac_address_part & 0xff);
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mac_address_part >>= 8;
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*ptr-- = swap_nibbles(mac_address_part & 0xff);
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}
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mcu_reset_reason_t common_hal_mcu_processor_get_reset_reason(void) {
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switch (esp_reset_reason()) {
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case ESP_RST_POWERON:
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return RESET_REASON_POWER_ON;
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case ESP_RST_SW:
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case ESP_RST_PANIC:
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return RESET_REASON_SOFTWARE;
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case ESP_RST_INT_WDT:
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case ESP_RST_TASK_WDT:
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case ESP_RST_WDT:
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return RESET_REASON_WATCHDOG;
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case ESP_RST_BROWNOUT:
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return RESET_REASON_BROWNOUT;
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case ESP_RST_SDIO:
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case ESP_RST_EXT:
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return RESET_REASON_RESET_PIN;
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case ESP_RST_DEEPSLEEP:
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switch (esp_sleep_get_wakeup_cause()) {
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case ESP_SLEEP_WAKEUP_TIMER:
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case ESP_SLEEP_WAKEUP_EXT0:
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case ESP_SLEEP_WAKEUP_EXT1:
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case ESP_SLEEP_WAKEUP_TOUCHPAD:
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return RESET_REASON_DEEP_SLEEP_ALARM;
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case ESP_SLEEP_WAKEUP_UNDEFINED:
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default:
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return RESET_REASON_UNKNOWN;
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}
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case ESP_RST_UNKNOWN:
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default:
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return RESET_REASON_UNKNOWN;
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}
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}
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