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esp_efuse_chip.h
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esp_efuse_chip.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 ESP32C3
*/
typedef enum {
EFUSE_BLK0 = 0, /**< Number of eFuse BLOCK0. REPEAT_DATA */
EFUSE_BLK1 = 1, /**< Number of eFuse BLOCK1. MAC_SPI_8M_SYS */
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. USER_DATA*/
EFUSE_BLK_USER_DATA = 3, /**< Number of eFuse BLOCK3. USER_DATA*/
EFUSE_BLK4 = 4, /**< Number of eFuse BLOCK4. KEY0 */
EFUSE_BLK_KEY0 = 4, /**< Number of eFuse BLOCK4. KEY0 */
EFUSE_BLK5 = 5, /**< Number of eFuse BLOCK5. KEY1 */
EFUSE_BLK_KEY1 = 5, /**< Number of eFuse BLOCK5. KEY1 */
EFUSE_BLK6 = 6, /**< Number of eFuse BLOCK6. KEY2 */
EFUSE_BLK_KEY2 = 6, /**< Number of eFuse BLOCK6. KEY2 */
EFUSE_BLK7 = 7, /**< Number of eFuse BLOCK7. KEY3 */
EFUSE_BLK_KEY3 = 7, /**< Number of eFuse BLOCK7. KEY3 */
EFUSE_BLK8 = 8, /**< Number of eFuse BLOCK8. KEY4 */
EFUSE_BLK_KEY4 = 8, /**< Number of eFuse BLOCK8. KEY4 */
EFUSE_BLK9 = 9, /**< Number of eFuse BLOCK9. KEY5 */
EFUSE_BLK_KEY5 = 9, /**< Number of eFuse BLOCK9. KEY5 */
EFUSE_BLK_KEY_MAX = 10,
EFUSE_BLK10 = 10, /**< Number of eFuse BLOCK10. SYS_DATA_PART2 */
EFUSE_BLK_SYS_DATA_PART2 = 10, /**< Number of eFuse BLOCK10. SYS_DATA_PART2 */
EFUSE_BLK_MAX
} 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;
/**
* @brief Type of key purpose
*/
typedef enum {
ESP_EFUSE_KEY_PURPOSE_USER = 0, /**< User purposes (software-only use) */
ESP_EFUSE_KEY_PURPOSE_RESERVED = 1, /**< Reserved */
ESP_EFUSE_KEY_PURPOSE_XTS_AES_128_KEY = 4, /**< XTS_AES_128_KEY (flash/PSRAM encryption) */
ESP_EFUSE_KEY_PURPOSE_HMAC_DOWN_ALL = 5, /**< HMAC Downstream mode */
ESP_EFUSE_KEY_PURPOSE_HMAC_DOWN_JTAG = 6, /**< JTAG soft enable key (uses HMAC Downstream mode) */
ESP_EFUSE_KEY_PURPOSE_HMAC_DOWN_DIGITAL_SIGNATURE = 7, /**< Digital Signature peripheral key (uses HMAC Downstream mode) */
ESP_EFUSE_KEY_PURPOSE_HMAC_UP = 8, /**< HMAC Upstream mode */
ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_DIGEST0 = 9, /**< SECURE_BOOT_DIGEST0 (Secure Boot key digest) */
ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_DIGEST1 = 10, /**< SECURE_BOOT_DIGEST1 (Secure Boot key digest) */
ESP_EFUSE_KEY_PURPOSE_SECURE_BOOT_DIGEST2 = 11, /**< SECURE_BOOT_DIGEST2 (Secure Boot key digest) */
ESP_EFUSE_KEY_PURPOSE_MAX, /**< MAX PURPOSE */
} esp_efuse_purpose_t;
#ifdef __cplusplus
}
#endif