esp-idf/components/efuse/private_include/esp_efuse_utility.h

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// Copyright 2017-2018 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 <string.h>
#include "esp_types.h"
#include "esp_err.h"
#include "esp_efuse.h"
#include "sdkconfig.h"
#include_next "esp_efuse_utility.h"
/**
* @brief Structure range address by blocks
*/
typedef struct {
uint32_t start;
uint32_t end;
} esp_efuse_range_addr_t;
/**
* @brief This is type of function that will handle the efuse field register.
*
* @param[in] num_reg The register number in the block.
* @param[in] efuse_block Block number.
* @param[in] bit_start Start bit in the register.
* @param[in] bit_count The number of bits used in the register.
* @param[in/out] arr A pointer to an array or variable.
* @param[in/out] bits_counter Counter bits.
*
* @return
* - ESP_OK: The operation was successfully completed.
* - other efuse component errors.
*/
typedef esp_err_t (*efuse_func_proc_t) (unsigned int num_reg, esp_efuse_block_t efuse_block, int starting_bit_num_in_reg, int num_bits_used_in_reg, void* arr, int* bits_counter);
/**
* @brief This function processes the field by calling the passed function.
*
* This function selects the field, checks the length, and calls the register processing function.
* @param[in] field A pointer to the structure describing the fields of efuse.
* @param[in/out] ptr A pointer to an array that is used to read / write from / to the efuse field.
* @param[in] ptr_size_bits The size of the data in bits for the efuse field. if = 0 then read all field bits.
* @param[in] func_proc This is the function that will handle the efuse fields.
*
* @return
* - ESP_OK: The operation was successfully completed.
* - other efuse component errors.
*/
esp_err_t esp_efuse_utility_process(const esp_efuse_desc_t* field[], void* ptr, size_t ptr_size_bits, efuse_func_proc_t func_proc);
/**
* @brief Write register with the required number of "1" bits.
* @param[in/out] cnt The number of bits you need to set in the field.
*/
esp_err_t esp_efuse_utility_write_cnt(unsigned int num_reg, esp_efuse_block_t efuse_block, int bit_start, int bit_count, void* cnt, int* bits_counter);
/**
* @brief Fill registers from array for writing.
* @param[in] arr_in A pointer to an array in which the data for the writing.
*/
esp_err_t esp_efuse_utility_write_blob(unsigned int num_reg, esp_efuse_block_t efuse_block, int bit_start, int bit_count, void* arr_in, int* bits_counter);
/**
* @brief Count a set bits in register.
* @param[in/out] out_cnt A pointer to size_t variable which will contain the number of "1" bits.
*/
esp_err_t esp_efuse_utility_count_once(unsigned int num_reg, esp_efuse_block_t efuse_block, int bit_start, int bit_count, void* out_cnt, int* bits_counter);
/**
* @brief Read efuse register and write this value to array.
* @param[out] arr_out A pointer to array that will contain the result of reading.
*/
esp_err_t esp_efuse_utility_fill_buff(unsigned int num_reg, esp_efuse_block_t efuse_block, int bit_start, int bit_count, void* arr_out, int* bits_counter);
/**
* @brief Burn values written to the efuse write registers.
*
* If CONFIG_EFUSE_VIRTUAL is set, writing will not be performed.
* After the function is completed, the writing registers are cleared.
*/
void esp_efuse_utility_burn_efuses(void);
/**
* @brief Returns the number of array elements for placing these "bits" in an array with the length of each element equal to "size_of_base".
*/
int esp_efuse_utility_get_number_of_items(int bits, int size_of_base);
/**
* @brief Reading efuse register.
*/
uint32_t esp_efuse_utility_read_reg(esp_efuse_block_t blk, unsigned int num_reg);
/**
* @brief Writing efuse register with checking of repeated programming of programmed bits.
*/
esp_err_t esp_efuse_utility_write_reg(unsigned int num_reg, esp_efuse_block_t efuse_block, uint32_t reg_to_write);
/* @brief Reset efuse write registers
*
* Efuse write registers are written to zero, to negate
* any changes that have been staged here.
*/
void esp_efuse_utility_reset(void);
/**
* @brief Fills the virt_blocks array by values from efuse_Rdata.
*/
void esp_efuse_utility_update_virt_blocks(void);
/**
* @brief Prints efuse values for all registers.
*/
void esp_efuse_utility_debug_dump_blocks(void);
/**
* @brief Erase the virt_blocks array.
*/
void esp_efuse_utility_erase_virt_blocks(void);
/**
* @brief Apply coding_scheme to write registers.
*
* @return
* - ESP_OK: The operation was successfully completed.
* - ESP_ERR_CODING: Error range of data does not match the coding scheme.
*/
esp_err_t esp_efuse_utility_apply_new_coding_scheme(void);
/**
* @brief Efuse read operation: copies data from physical efuses to efuse read registers.
*/
void esp_efuse_utility_clear_program_registers(void);
#ifdef __cplusplus
}
#endif