71 lines
3.2 KiB
C++
71 lines
3.2 KiB
C++
/**
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* Copyright (c) 2011-2022 Bill Greiman
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* This file is part of the SdFat library for SD memory cards.
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*
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* MIT License
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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// Driver for: https://github.com/rogerclarkmelbourne/Arduino_STM32
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#include "SdSpiDriver.h"
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#if defined(SD_USE_CUSTOM_SPI) && (defined(__STM32F1__) || defined(__STM32F4__))
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#if defined(__STM32F1__)
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#define USE_STM32_DMA 1
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#elif defined(__STM32F4__)
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#define USE_STM32_DMA 1
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#else // defined(__STM32F1__)
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#error Unknown STM32 type
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#endif // defined(__STM32F1__)
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//------------------------------------------------------------------------------
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void SdSpiArduinoDriver::activate() { m_spi->beginTransaction(m_spiSettings); }
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//------------------------------------------------------------------------------
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void SdSpiArduinoDriver::begin(SdSpiConfig spiConfig) {
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if (spiConfig.spiPort) {
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m_spi = spiConfig.spiPort;
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} else {
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m_spi = &SPI;
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}
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m_spi->begin();
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}
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//------------------------------------------------------------------------------
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void SdSpiArduinoDriver::deactivate() { m_spi->endTransaction(); }
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//------------------------------------------------------------------------------
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void SdSpiArduinoDriver::end() { m_spi->end(); }
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//------------------------------------------------------------------------------
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uint8_t SdSpiArduinoDriver::receive() { return m_spi->transfer(0XFF); }
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//------------------------------------------------------------------------------
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uint8_t SdSpiArduinoDriver::receive(uint8_t* buf, size_t count) {
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#if USE_STM32_DMA
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return m_spi->dmaTransfer(nullptr, buf, count);
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#else // USE_STM32_DMA
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m_spi->read(buf, count);
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return 0;
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#endif // USE_STM32_DMA
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}
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//------------------------------------------------------------------------------
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void SdSpiArduinoDriver::send(uint8_t data) { m_spi->transfer(data); }
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//------------------------------------------------------------------------------
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void SdSpiArduinoDriver::send(const uint8_t* buf, size_t count) {
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#if USE_STM32_DMA
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m_spi->dmaTransfer(const_cast<uint8*>(buf), nullptr, count);
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#else // USE_STM32_DMA
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m_spi->write(const_cast<uint8*>(buf), count);
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#endif // USE_STM32_DMA
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}
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#endif // defined(SD_USE_CUSTOM_SPI) && defined(__STM32F1__)
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