mirror of
https://github.com/espressif/ESP8266_RTOS_SDK.git
synced 2025-05-22 01:27:11 +08:00
d0f58daec1
Bootloader can get the version of application for specific section,
and then check if some features are supported.
Developers can use the macro "ESP_IDF_VERSION" to limite some function like following:
include "esp_idf_version.h"
if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(3, 4, 0) && ESP_IDF_VERSION < ESP_IDF_VERSION_VAL(4, 0, 0) // 3.4 <= ver < 4.0
do_xxx_process();
endif
101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
// Copyright 2018-2019 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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#pragma once
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#include <stdint.h>
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#include <esp_system.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define RTC_SYS_RAM_SIZE 256
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/**
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* @brief Station's AP base information of old SDK
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*/
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struct old_ap_ssid {
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uint32_t len; //!< SSID length
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uint8_t ssid[32]; //!< SSID data
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uint8_t passwd[64]; //!< password data
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} __attribute__((packed));
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/**
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* @brief System information of old SDK
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*/
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struct old_sysconf {
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uint8_t reserved_1[0x13C]; //!< reserved data
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uint8_t ap_number; //!< number of stored AP
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uint8_t ap_index; //!< index of current used AP
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uint8_t reserved_2[0x2]; //!< reserved data
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struct old_ap_ssid ap_ssid[5]; //!< station's AP base information
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} __attribute__((packed));
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/**
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* The size of structure must not be larger than 256 bytes and all member varible must be uint32_t type
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*/
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struct _rtc_sys_info {
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uint32_t hint; // software reset reason
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uint32_t old_sysconf_addr; /*<! old SDK system configuration parameters base address,
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if your bootloader is older than v3.2, please don't use this */
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};
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/**
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* @brief System information
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*/
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typedef struct esp_sys_info {
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uint32_t version; //!< system version
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uint32_t reserved[3]; //!< reserved data
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} esp_sys_info_t;
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_Static_assert(sizeof(esp_sys_info_t) == 16, "esp_sys_info_t should be 16 bytes");
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extern struct _rtc_sys_info rtc_sys_info;
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/**
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* @brief Internal function to get SoC reset reason at system initialization
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*/
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void esp_reset_reason_init(void);
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/**
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* @brief Internal function to set reset reason hint
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*
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* The hint is used do distinguish different reset reasons when software reset
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* is performed.
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*
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* The hint is stored in RTC store register, RTC_RESET_CAUSE_REG.
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*
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* @param hint Desired esp_reset_reason_t value for the real reset reason
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*/
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void esp_reset_reason_set_hint(esp_reset_reason_t hint);
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/**
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* @brief Get reason of last reset but not clear it for next reset
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*
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* @return See description of esp_reset_reason_t for explanation of each value.
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*/
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esp_reset_reason_t esp_reset_reason_early(void);
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/**
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* @brief Get old SDK configuration parameters base address
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*
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* @return 0 if it is not upgraded from old SDK or the absolute address of the flash
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*/
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uint32_t esp_get_old_sysconf_addr(void);
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#ifdef __cplusplus
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}
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#endif
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