/* * SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #include "esp_efuse.h" #include "esp_efuse_utility.h" #include "esp_efuse_table.h" #include "stdlib.h" #include "esp_types.h" #include "assert.h" #include "esp_err.h" #include "esp_log.h" #include "soc/efuse_periph.h" #include "sys/param.h" static __attribute__((unused)) const char *TAG = "efuse"; // Contains functions that provide access to efuse fields which are often used in IDF. // Returns chip package from efuse uint32_t esp_efuse_get_pkg_ver(void) { uint32_t pkg_ver = 0; #ifdef EFUSE_PKG_VERSION esp_efuse_read_field_blob(ESP_EFUSE_PKG_VERSION, &pkg_ver, ESP_EFUSE_PKG_VERSION[0]->bit_count); #endif return pkg_ver; } esp_err_t esp_efuse_set_rom_log_scheme(esp_efuse_rom_log_scheme_t log_scheme) { int cur_log_scheme = 0; esp_efuse_read_field_blob(ESP_EFUSE_UART_PRINT_CONTROL, &cur_log_scheme, 2); if (!cur_log_scheme) { // not burned yet return esp_efuse_write_field_blob(ESP_EFUSE_UART_PRINT_CONTROL, &log_scheme, 2); } else { return ESP_ERR_INVALID_STATE; } } esp_err_t esp_efuse_disable_rom_download_mode(void) { return esp_efuse_write_field_bit(ESP_EFUSE_DIS_DOWNLOAD_MODE); } esp_err_t esp_efuse_enable_rom_secure_download_mode(void) { if (esp_efuse_read_field_bit(ESP_EFUSE_DIS_DOWNLOAD_MODE)) { return ESP_ERR_INVALID_STATE; } return esp_efuse_write_field_bit(ESP_EFUSE_ENABLE_SECURITY_DOWNLOAD); }