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55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
/*
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* SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Type of eFuse blocks
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*/
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typedef enum {
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EFUSE_BLK0 = 0, /**< Number of eFuse BLOCK0. REPEAT_DATA */
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EFUSE_BLK1 = 1, /**< Number of eFuse BLOCK1. SYS_DATA_PART0 */
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EFUSE_BLK_SYS_DATA_PART0 = 2, /**< Number of eFuse BLOCK2. SYS_DATA_PART0 */
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EFUSE_BLK2 = 2, /**< Number of eFuse BLOCK2. SYS_DATA_PART1 */
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EFUSE_BLK_SYS_DATA_PART1 = 2, /**< Number of eFuse BLOCK2. SYS_DATA_PART1 */
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EFUSE_BLK3 = 3, /**< Number of eFuse BLOCK3. KEY0. whole block */
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EFUSE_BLK_KEY0 = 3, /**< Number of eFuse BLOCK3. KEY0. whole block */
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EFUSE_BLK_SECURE_BOOT = 3,
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EFUSE_BLK_KEY_MAX = 4,
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EFUSE_BLK_MAX = 4, /**< Number of eFuse blocks */
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} esp_efuse_block_t;
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/**
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* @brief Type of coding scheme
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*/
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typedef enum {
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EFUSE_CODING_SCHEME_NONE = 0, /**< None */
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EFUSE_CODING_SCHEME_RS = 3, /**< Reed-Solomon coding */
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} esp_efuse_coding_scheme_t;
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/**
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* @brief Type of key purposes (they are virtual because this chip has only fixed purposes for block)
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*/
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typedef enum {
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ESP_EFUSE_KEY_PURPOSE_USER = 0, /**< whole BLOCK3 */
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ESP_EFUSE_KEY_PURPOSE_XTS_AES_128_KEY = 1, /**< FE uses the whole BLOCK3 (key is 256-bits) */
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ESP_EFUSE_KEY_PURPOSE_XTS_AES_128_KEY_DERIVED_FROM_128_EFUSE_BITS = 2, /**< FE uses lower 128-bits of BLOCK3 (key is 128-bits) */
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ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_V2 = 3, /**< SB uses higher 128-bits of BLOCK3 (key is 128-bits) */
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ESP_EFUSE_KEY_PURPOSE_MAX, /**< MAX PURPOSE */
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} esp_efuse_purpose_t;
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#ifdef __cplusplus
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}
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#endif
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