/** * Copyright (c) 2011-2018 Bill Greiman * This file is part of the SdFat library for SD memory cards. * * MIT License * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #ifndef BaseBlockDriver_h #define BaseBlockDriver_h #include "FatLibConfig.h" /** * \class BaseBlockDriver * \brief Base block driver. */ class BaseBlockDriver { public: /** * Read a 512 byte block from an SD card. * * \param[in] block Logical block to be read. * \param[out] dst Pointer to the location that will receive the data. * \return The value true is returned for success and * the value false is returned for failure. */ virtual bool readBlock(uint32_t block, uint8_t* dst) = 0; /** End multi-block transfer and go to idle state. * \return The value true is returned for success and * the value false is returned for failure. */ virtual bool syncBlocks() = 0; /** * Writes a 512 byte block to an SD card. * * \param[in] block Logical block to be written. * \param[in] src Pointer to the location of the data to be written. * \return The value true is returned for success and * the value false is returned for failure. */ virtual bool writeBlock(uint32_t block, const uint8_t* src) = 0; #if USE_MULTI_BLOCK_IO /** * Read multiple 512 byte blocks from an SD card. * * \param[in] block Logical block to be read. * \param[in] nb Number of blocks to be read. * \param[out] dst Pointer to the location that will receive the data. * \return The value true is returned for success and * the value false is returned for failure. */ virtual bool readBlocks(uint32_t block, uint8_t* dst, size_t nb) = 0; /** * Write multiple 512 byte blocks to an SD card. * * \param[in] block Logical block to be written. * \param[in] nb Number of blocks to be written. * \param[in] src Pointer to the location of the data to be written. * \return The value true is returned for success and * the value false is returned for failure. */ virtual bool writeBlocks(uint32_t block, const uint8_t* src, size_t nb) = 0; #endif // USE_MULTI_BLOCK_IO }; #endif // BaseBlockDriver_h