mirror of
https://github.com/espressif/esp-idf.git
synced 2025-11-04 06:11:06 +00:00
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
// Copyright 2010-2020 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#pragma once
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
#define ESP_ROM_EFUSE_FLASH_DEFAULT_SPI (0)
|
|
#define ESP_ROM_EFUSE_FLASH_DEFAULT_HSPI (1)
|
|
|
|
/**
|
|
* @brief A CRC8 algorithm used for MAC addresses stored in eFuse
|
|
*
|
|
* @param data Pointer to the original data
|
|
* @param len Data length in byte
|
|
* @return uint8_t CRC value
|
|
*/
|
|
uint8_t esp_rom_efuse_mac_address_crc8(const uint8_t *data, uint32_t len);
|
|
|
|
/**
|
|
* @brief Get SPI Flash GPIO pin configurations from eFuse
|
|
*
|
|
* @return uint32_t
|
|
* - 0: default SPI pins (ESP_ROM_EFUSE_FLASH_DEFAULT_SPI)
|
|
* - 1: default HSPI pins (ESP_ROM_EFUSE_FLASH_DEFAULT_HSPI)
|
|
* - Others: Customized pin configuration mask. Pins are encoded as per the
|
|
* EFUSE_SPICONFIG_RET_SPICLK, EFUSE_SPICONFIG_RET_SPIQ, EFUSE_SPICONFIG_RET_SPID,
|
|
* EFUSE_SPICONFIG_RET_SPICS0, EFUSE_SPICONFIG_RET_SPIHD macros.
|
|
*
|
|
* @note WP pin (for quad I/O modes) is not saved in eFuse and not returned by this function.
|
|
*/
|
|
uint32_t esp_rom_efuse_get_flash_gpio_info(void);
|
|
|
|
/**
|
|
* @brief Get SPI Flash WP pin information from eFuse
|
|
*
|
|
* @return uint32_t
|
|
* - 0x3F: invalid GPIO number
|
|
* - 0~46: valid GPIO number
|
|
*/
|
|
uint32_t esp_rom_efuse_get_flash_wp_gpio(void);
|
|
|
|
/**
|
|
* @brief Read eFuse to check whether secure boot has been enabled or not
|
|
*
|
|
* @return true if secure boot is enabled, otherwise false
|
|
*/
|
|
bool esp_rom_efuse_is_secure_boot_enabled(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|