76 lines
2 KiB
C++
76 lines
2 KiB
C++
// Copyright 2015-2017 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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// 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 _WL_Flash_H_
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#define _WL_Flash_H_
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#include "esp_err.h"
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#include "Flash_Access.h"
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#include "WL_Config.h"
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#include "WL_State.h"
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/**
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* @brief This class is used to make wear levelling for flash devices. Class implements Flash_Access interface
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*
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*/
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class WL_Flash : public Flash_Access
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{
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public :
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WL_Flash();
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~WL_Flash() override;
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virtual esp_err_t config(wl_config_t *cfg, Flash_Access *flash_drv);
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virtual esp_err_t init();
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size_t chip_size() override;
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size_t sector_size() override;
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esp_err_t erase_sector(size_t sector) override;
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esp_err_t erase_range(size_t start_address, size_t size) override;
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esp_err_t write(size_t dest_addr, const void *src, size_t size) override;
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esp_err_t read(size_t src_addr, void *dest, size_t size) override;
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esp_err_t flush() override;
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Flash_Access *get_drv();
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wl_config_t *get_cfg();
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protected:
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bool configured = false;
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bool initialized = false;
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wl_state_t state;
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wl_config_t cfg;
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Flash_Access *flash_drv = NULL;
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size_t addr_cfg;
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size_t addr_state1;
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size_t addr_state2;
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size_t index_state1;
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size_t index_state2;
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size_t flash_size;
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uint32_t state_size;
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uint32_t cfg_size;
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uint8_t *temp_buff = NULL;
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size_t dummy_addr;
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uint8_t used_bits;
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esp_err_t initSections();
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esp_err_t updateWL();
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esp_err_t recoverPos();
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size_t calcAddr(size_t addr);
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};
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#endif // _WL_Flash_H_
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