arduino-esp32/tools/sdk/include/esp32/esp_system.h

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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef __ESP_SYSTEM_H__
#define __ESP_SYSTEM_H__
#include <stdint.h>
#include <stdbool.h>
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#include "esp_err.h"
#include "esp_deepsleep.h"
#ifdef __cplusplus
extern "C" {
#endif
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/**
* @attention application don't need to call this function anymore. It do nothing and will
* be removed in future version.
*/
void system_init(void) __attribute__ ((deprecated));
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/**
* @brief Reset to default settings.
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*
* Function has been deprecated, please use esp_wifi_restore instead.
* This name will be removed in a future release.
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*/
void system_restore(void) __attribute__ ((deprecated));
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/**
* @brief Restart PRO and APP CPUs.
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*
* This function can be called both from PRO and APP CPUs.
* After successful restart, CPU reset reason will be SW_CPU_RESET.
* Peripherals (except for WiFi, BT, UART0, SPI1, and legacy timers) are not reset.
* This function does not return.
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*/
void esp_restart(void) __attribute__ ((noreturn));
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/**
* @brief Restart system.
*
* Function has been renamed to esp_restart.
* This name will be removed in a future release.
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*/
void system_restart(void) __attribute__ ((deprecated, noreturn));
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/**
* @brief Get system time, unit: microsecond.
*
* This function is deprecated. Use 'gettimeofday' function for 64-bit precision.
* This definition will be removed in a future release.
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*/
uint32_t system_get_time(void) __attribute__ ((deprecated));
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/**
* @brief Get the size of available heap.
*
* Note that the returned value may be larger than the maximum contiguous block
* which can be allocated.
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*
* @return Available heap size, in bytes.
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*/
uint32_t esp_get_free_heap_size(void);
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/**
* @brief Get the size of available heap.
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*
* Function has been renamed to esp_get_free_heap_size.
* This name will be removed in a future release.
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*
* @return Available heap size, in bytes.
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*/
uint32_t system_get_free_heap_size(void) __attribute__ ((deprecated));
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/**
* @brief Get one random 32-bit word from hardware RNG
*
* @return random value between 0 and UINT32_MAX
*/
uint32_t esp_random(void);
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/**
* @brief Read hardware MAC address.
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*
* In WiFi MAC, only ESP32 station MAC is the hardware MAC, ESP32 softAP MAC is a software MAC
* calculated from ESP32 station MAC.
* So users need to call esp_wifi_get_macaddr to query the ESP32 softAP MAC if ESP32 station MAC changed.
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*
* @param mac hardware MAC address, length: 6 bytes.
*
* @return ESP_OK on success
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*/
esp_err_t esp_efuse_read_mac(uint8_t* mac);
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/**
* @brief Read hardware MAC address.
*
* Function has been renamed to esp_efuse_read_mac.
* This name will be removed in a future release.
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*
* @param mac hardware MAC address, length: 6 bytes.
* @return ESP_OK on success
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*/
esp_err_t system_efuse_read_mac(uint8_t mac[6]) __attribute__ ((deprecated));
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/**
* Get SDK version
*
* This function is deprecated and will be removed in a future release.
*
* @return constant string "master"
*/
const char* system_get_sdk_version(void) __attribute__ ((deprecated));
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#ifdef __cplusplus
}
#endif
#endif /* __ESP_SYSTEM_H__ */