mirror of https://github.com/ARMmbed/mbed-os.git
94 lines
3.0 KiB
C++
94 lines
3.0 KiB
C++
/* Copyright (c) 2020 ARM Limited
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* SPDX-License-Identifier: Apache-2.0
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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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*/
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#ifndef EMULATEDSD_H
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#define EMULATEDSD_H
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#include "features/storage/blockdevice/BlockDevice.h"
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class EmulatedSD_Private;
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class EmulatedSD : public mbed::BlockDevice {
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public:
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EmulatedSD(const char *path);
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~EmulatedSD();
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/** Initialize a block device
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*
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* @return 0 on success or a negative error code on failure
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*/
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virtual int init();
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/** Deinitialize a block device
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*
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* @return 0 on success or a negative error code on failure
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*/
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virtual int deinit();
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/** Read blocks from a block device
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*
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* If a failure occurs, it is not possible to determine how many bytes succeeded
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*
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* @param buffer Buffer to write blocks to
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* @param addr Address of block to begin reading from
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* @param size Size to read in bytes, must be a multiple of the read block size
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* @return 0 on success or a negative error code on failure
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*/
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virtual int read(void *buffer, bd_addr_t addr, bd_size_t size);
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/** Program blocks to a block device
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*
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* The blocks must have been erased prior to being programmed
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*
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* If a failure occurs, it is not possible to determine how many bytes succeeded
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*
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* @param buffer Buffer of data to write to blocks
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* @param addr Address of block to begin writing to
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* @param size Size to write in bytes, must be a multiple of the program block size
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* @return 0 on success or a negative error code on failure
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*/
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virtual int program(const void *buffer, bd_addr_t addr, bd_size_t size);
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/** Get the size of a readable block
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*
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* @return Size of a readable block in bytes
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*/
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virtual bd_size_t get_read_size() const;
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/** Get the size of a programmable block
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*
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* @return Size of a programmable block in bytes
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* @note Must be a multiple of the read size
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*/
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virtual bd_size_t get_program_size() const;
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/** Get the total size of the underlying device
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*
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* @return Size of the underlying device in bytes
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*/
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virtual bd_size_t size() const;
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/** Get the BlockDevice class type.
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*
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* @return A string represent the BlockDevice class type.
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*/
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virtual const char *get_type() const;
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private:
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EmulatedSD_Private *_p;
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};
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#endif // EMULATEDSD_H
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