193 lines
4.7 KiB
C
193 lines
4.7 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef __ESP_SYSTEM_H__
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#define __ESP_SYSTEM_H__
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#include <stdint.h>
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#include <stdbool.h>
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#include "esp_err.h"
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#include "esp_deepsleep.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** \defgroup System_APIs System APIs
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* @brief System APIs
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*/
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/** @addtogroup System_APIs
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* @{
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*/
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/**
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* @attention application don't need to call this function anymore. It do nothing and will
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* be removed in future version.
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*/
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void system_init(void) __attribute__ ((deprecated));
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/**
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* @brief Get information of the SDK version.
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*
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* @param null
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*
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* @return Information of the SDK version.
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*/
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const char *system_get_sdk_version(void);
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/**
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* @brief Reset to default settings.
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*
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* Reset to default settings of the following APIs : wifi_station_set_auto_connect,
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* wifi_set_phy_mode, wifi_softap_set_config related, wifi_station_set_config
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* related, and wifi_set_opmode.
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*
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* @param null
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*
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* @return null
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*/
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void system_restore(void);
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/**
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* @brief Restart system.
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*
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* @param null
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*
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* @return null
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*/
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void system_restart(void);
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/**
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* @brief Get system time, unit: microsecond.
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*
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* @param null
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*
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* @return System time, unit: microsecond.
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*/
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uint32_t system_get_time(void);
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/**
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* @brief Get the size of available heap.
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*
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* @param null
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*
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* @return Available heap size.
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*/
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uint32_t system_get_free_heap_size(void);
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/**
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* @brief Get RTC time, unit: RTC clock cycle.
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*
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* @param null
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*
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* @return RTC time.
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*/
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uint64_t system_get_rtc_time(void);
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/**
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* @brief Read user data from the RTC memory.
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*
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* The user data segment (1024 bytes, as shown below) is used to store user data.
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*
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* |<---- system data(512 bytes) ---->|<----------- user data(1024 bytes) --------->|
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*
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* @attention Read and write unit for data stored in the RTC memory is 4 bytes.
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* @attention src_addr is the block number (4 bytes per block). So when reading data
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* at the beginning of the user data segment, src_addr will be 512/4 = 128,
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* n will be data length.
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*
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* @param uint16 src : source address of rtc memory, src_addr >= 128
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* @param void *dst : data pointer
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* @param uint16 n : data length, unit: byte
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*
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* @return true : succeed
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* @return false : fail
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*/
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bool system_rtc_mem_read(uint16_t src, void *dst, uint16_t n);
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/**
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* @brief Write user data to the RTC memory.
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*
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* During deep-sleep, only RTC is working. So users can store their data
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* in RTC memory if it is needed. The user data segment below (1024 bytes)
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* is used to store the user data.
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*
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* |<---- system data(512 bytes) ---->|<----------- user data(1024 bytes) --------->|
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*
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* @attention Read and write unit for data stored in the RTC memory is 4 bytes.
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* @attention src_addr is the block number (4 bytes per block). So when storing data
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* at the beginning of the user data segment, src_addr will be 512/4 = 128,
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* n will be data length.
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*
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* @param uint16 src : source address of rtc memory, src_addr >= 128
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* @param void *dst : data pointer
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* @param uint16 n : data length, unit: byte
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*
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* @return true : succeed
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* @return false : fail
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*/
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bool system_rtc_mem_write(uint16_t dst, const void *src, uint16_t n);
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/** \defgroup System_boot_APIs Boot APIs
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* @brief boot APIs
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*/
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/** @addtogroup System_boot_APIs
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* @{
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*/
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/**
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* @}
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*/
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/** \defgroup Hardware_MAC_APIs Hardware MAC APIs
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* @brief Hardware MAC address APIs
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*
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* In WiFi MAC, only ESP32 station MAC is the hardware MAC, ESP32 softAP MAC is a software MAC
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* calculated from ESP32 station MAC.
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* So users need to call wifi_get_macaddr to query the ESP32 softAP MAC if ESP32 station MAC changed.
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*
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*/
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/** @addtogroup Hardware_MAC_APIs
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* @{
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*/
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/**
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* @brief Read hardware MAC address.
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*
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* @param uint8 mac[6] : the hardware MAC address, length: 6 bytes.
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*
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* @return esp_err_t
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*/
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esp_err_t system_efuse_read_mac(uint8_t mac[6]);
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/**
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* @}
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*/
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ESP_SYSTEM_H__ */
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