esp-idf/components/efuse/esp8684/include/esp_efuse.h

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/*
* SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Type of eFuse blocks ESP8684
*/
typedef enum {
EFUSE_BLK0 = 0, /**< Number of eFuse BLOCK0. REPEAT_DATA */
EFUSE_BLK1 = 1, /**< Number of eFuse BLOCK1. SYS_DATA_PART0 */
EFUSE_BLK_SYS_DATA_PART0 = 2, /**< Number of eFuse BLOCK2. SYS_DATA_PART0 */
EFUSE_BLK2 = 2, /**< Number of eFuse BLOCK2. SYS_DATA_PART1 */
EFUSE_BLK_SYS_DATA_PART1 = 2, /**< Number of eFuse BLOCK2. SYS_DATA_PART1 */
EFUSE_BLK3 = 3, /**< Number of eFuse BLOCK3. KEY0*/
EFUSE_BLK_KEY0 = 3, /**< Number of eFuse BLOCK3. KEY0*/
EFUSE_BLK_KEY_MAX = 4,
EFUSE_BLK_MAX = 4,
} esp_efuse_block_t;
/**
* @brief Type of coding scheme
*/
typedef enum {
EFUSE_CODING_SCHEME_NONE = 0, /**< None */
EFUSE_CODING_SCHEME_RS = 3, /**< Reed-Solomon coding */
} esp_efuse_coding_scheme_t;
/** For ESP8684, there's no key purpose region for efuse keys, In order to maintain
* compatibility with the previous apis, we should set the parameter of 'ets_efuse_purpose_t'
* as default value ETS_EFUSE_KEY_PURPOSE_INVALID.
* (In fact, this parameter can be any value, the api in the rom will not process key_purpose region)
*/
typedef enum {
ESP_EFUSE_KEY_PURPOSE_INVALID = -1,
ESP_EFUSE_KEY_PURPOSE_USER = 0,
ESP_EFUSE_KEY_PURPOSE_FLASH_ENCRYPTION = 1,
ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_V1 = 2,
} esp_efuse_purpose_t;
#ifdef __cplusplus
}
#endif