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https://github.com/espressif/esp-idf.git
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141 lines
5.1 KiB
C
141 lines
5.1 KiB
C
// Copyright 2017-2018 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef _ESP_EFUSE_UTILITY_H_
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#define _ESP_EFUSE_UTILITY_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <string.h>
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#include "esp_types.h"
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#include "esp_err.h"
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#include "esp_efuse.h"
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/**
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* @brief This is type of function that will handle the efuse field register.
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*
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* @param[in] num_reg The register number in the block.
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* @param[in] efuse_block Block number.
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* @param[in] bit_start Start bit in the register.
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* @param[in] bit_count The number of bits used in the register.
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* @param[in/out] arr A pointer to an array or variable.
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* @param[in/out] bits_counter Counter bits.
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*
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* @return
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* - ESP_OK: The operation was successfully completed.
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* - other efuse component errors.
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*/
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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);
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/**
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* @brief This function processes the field by calling the passed function.
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*
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* This function selects the field, checks the length, and calls the register processing function.
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* @param[in] field A pointer to the structure describing the fields of efuse.
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* @param[in/out] ptr A pointer to an array that is used to read / write from / to the efuse field.
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* @param[in] ptr_size_bits The size of the data in bits for the efuse field. if = 0 then read all field bits.
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* @param[in] func_proc This is the function that will handle the efuse fields.
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*
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* @return
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* - ESP_OK: The operation was successfully completed.
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* - other efuse component errors.
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*/
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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);
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/**
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* @brief Write register with the required number of "1" bits.
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* @param[in/out] cnt The number of bits you need to set in the field.
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*/
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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);
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/**
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* @brief Fill registers from array for writing.
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* @param[in] arr_in A pointer to an array in which the data for the writing.
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*/
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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);
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/**
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* @brief Count a set bits in register.
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* @param[in/out] out_cnt A pointer to size_t variable which will contain the number of "1" bits.
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*/
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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);
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/**
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* @brief Read efuse register and write this value to array.
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* @param[out] arr_out A pointer to array that will contain the result of reading.
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*/
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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);
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/**
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* @brief Burn values written to the efuse write registers.
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*
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* If CONFIG_EFUSE_VIRTUAL is set, writing will not be performed.
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* After the function is completed, the writing registers are cleared.
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*/
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void esp_efuse_utility_burn_efuses(void);
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/**
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* @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".
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*/
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int esp_efuse_utility_get_number_of_items(int bits, int size_of_base);
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/**
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* @brief Reading efuse register.
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*/
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uint32_t esp_efuse_utility_read_reg(esp_efuse_block_t blk, unsigned int num_reg);
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/**
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* @brief Writing efuse register with checking of repeated programming of programmed bits.
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*/
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esp_err_t esp_efuse_utility_write_reg(unsigned int num_reg, esp_efuse_block_t efuse_block, uint32_t reg_to_write);
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/* @brief Reset efuse write registers
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*
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* Efuse write registers are written to zero, to negate
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* any changes that have been staged here.
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*/
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void esp_efuse_utility_reset(void);
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/**
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* @brief Fills the virt_blocks array by values from efuse_Rdata.
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*/
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void esp_efuse_utility_update_virt_blocks();
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/**
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* @brief Prints efuse values for all registers.
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*/
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void esp_efuse_utility_debug_dump_blocks();
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/**
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* @brief Erase the virt_blocks array.
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*/
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void esp_efuse_utility_erase_virt_blocks();
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/**
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* @brief Apply coding_scheme to write registers.
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*
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* @return
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* - ESP_OK: The operation was successfully completed.
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* - ESP_ERR_CODING: Error range of data does not match the coding scheme.
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*/
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esp_err_t esp_efuse_utility_apply_new_coding_scheme();
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#ifdef __cplusplus
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}
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#endif
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#endif // _ESP_EFUSE_UTILITY_H_
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