108 lines
3.5 KiB
C
108 lines
3.5 KiB
C
// Copyright 2015-2016 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.
|
|
#ifndef nvs_flash_h
|
|
#define nvs_flash_h
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include "nvs.h"
|
|
|
|
/**
|
|
* @brief Initialize the default NVS partition.
|
|
*
|
|
* This API initialises the default NVS partition. The default NVS partition
|
|
* is the one that is labeled "nvs" in the partition table.
|
|
*
|
|
* @return
|
|
* - ESP_OK if storage was successfully initialized.
|
|
* - ESP_ERR_NVS_NO_FREE_PAGES if the NVS storage contains no empty pages
|
|
* (which may happen if NVS partition was truncated)
|
|
* - ESP_ERR_NOT_FOUND if no partition with label "nvs" is found in the partition table
|
|
* - one of the error codes from the underlying flash storage driver
|
|
*/
|
|
esp_err_t nvs_flash_init(void);
|
|
|
|
/**
|
|
* @brief Initialize NVS flash storage for the specified partition.
|
|
*
|
|
* @param[in] partition_label Label of the partition. Note that internally a reference to
|
|
* passed value is kept and it should be accessible for future operations
|
|
*
|
|
* @return
|
|
* - ESP_OK if storage was successfully initialized.
|
|
* - ESP_ERR_NVS_NO_FREE_PAGES if the NVS storage contains no empty pages
|
|
* (which may happen if NVS partition was truncated)
|
|
* - ESP_ERR_NOT_FOUND if specified partition is not found in the partition table
|
|
* - one of the error codes from the underlying flash storage driver
|
|
*/
|
|
esp_err_t nvs_flash_init_partition(const char *partition_label);
|
|
|
|
/**
|
|
* @brief Deinitialize NVS storage for the default NVS partition
|
|
*
|
|
* Default NVS partition is the partition with "nvs" label in the partition table.
|
|
*
|
|
* @return
|
|
* - ESP_OK on success (storage was deinitialized)
|
|
* - ESP_ERR_NVS_NOT_INITIALIZED if the storage was not initialized prior to this call
|
|
*/
|
|
esp_err_t nvs_flash_deinit(void);
|
|
|
|
/**
|
|
* @brief Deinitialize NVS storage for the given NVS partition
|
|
*
|
|
* @param[in] partition_label Label of the partition
|
|
*
|
|
* @return
|
|
* - ESP_OK on success
|
|
* - ESP_ERR_NVS_NOT_INITIALIZED if the storage for given partition was not
|
|
* initialized prior to this call
|
|
*/
|
|
esp_err_t nvs_flash_deinit_partition(const char* partition_label);
|
|
|
|
/**
|
|
* @brief Erase the default NVS partition
|
|
*
|
|
* This function erases all contents of the default NVS partition (one with label "nvs")
|
|
*
|
|
* @return
|
|
* - ESP_OK on success
|
|
* - ESP_ERR_NOT_FOUND if there is no NVS partition labeled "nvs" in the
|
|
* partition table
|
|
*/
|
|
esp_err_t nvs_flash_erase(void);
|
|
|
|
/**
|
|
* @brief Erase specified NVS partition
|
|
*
|
|
* This function erases all contents of specified NVS partition
|
|
*
|
|
* @param[in] part_name Name (label) of the partition to be erased
|
|
*
|
|
* @return
|
|
* - ESP_OK on success
|
|
* - ESP_ERR_NOT_FOUND if there is no NVS partition with the specified name
|
|
* in the partition table
|
|
*/
|
|
esp_err_t nvs_flash_erase_partition(const char *part_name);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif /* nvs_flash_h */
|