esp-idf/components/efuse/esp32s3/esp_efuse_fields.c

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/*
* SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
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#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 "bootloader_random.h"
#include "sys/param.h"
static __attribute__((unused)) const char *TAG = "efuse";
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// Contains functions that provide access to efuse fields which are often used in IDF.
// Returns chip version from efuse
uint8_t esp_efuse_get_chip_ver(void)
{
// should return the same value as bootloader_common_get_chip_revision()
uint32_t chip_ver = 0;
// TODO: ESP32S2 does not have this field
return chip_ver;
}
// Returns chip package from efuse
uint32_t esp_efuse_get_pkg_ver(void)
{
uint32_t pkg_ver = 0;
esp_efuse_read_field_blob(ESP_EFUSE_PKG_VERSION, &pkg_ver, 4);
return pkg_ver;
}
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_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;
}
}
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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);
}