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193 lines
7.0 KiB
C
193 lines
7.0 KiB
C
/* Arduino SdFat Library
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* Copyright (C) 2012 by William Greiman
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*
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* This file is part of the Arduino SdFat Library
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*
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* This Library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This Library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the Arduino SdFat Library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file
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* \brief configuration definitions
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*/
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#ifndef SdFatConfig_h
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#define SdFatConfig_h
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#include <stdint.h>
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#ifdef __AVR__
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#include <avr/io.h>
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#endif // __AVR__
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//------------------------------------------------------------------------------
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/**
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* Set USE_LONG_FILE_NAMES nonzero to use long file names (LFN).
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* Long File Name are limited to a maximum length of 255 characters.
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*
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* This implementation allows 7-bit characters in the range
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* 0X20 to 0X7E except the following characters are not allowed:
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*
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* < (less than)
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* > (greater than)
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* : (colon)
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* " (double quote)
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* / (forward slash)
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* \ (backslash)
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* | (vertical bar or pipe)
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* ? (question mark)
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* * (asterisk)
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*
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*/
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#define USE_LONG_FILE_NAMES 1
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//------------------------------------------------------------------------------
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/**
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* If the symbol ENABLE_EXTENDED_TRANSFER_CLASS is nonzero, the class SdFatEX
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* will be defined. If the symbol ENABLE_SOFTWARE_SPI_CLASS is also nonzero,
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* the class SdFatSoftSpiEX will be defined.
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*
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* These classes used extended multi-block SD I/O for better performance.
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* the SPI bus may not be shared with other devices in this mode.
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*/
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#define ENABLE_EXTENDED_TRANSFER_CLASS 0
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//-----------------------------------------------------------------------------
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/**
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* If the symbol USE_STANDARD_SPI_LIBRARY is nonzero, the classes SdFat and
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* SdFatEX use the standard Arduino SPI.h library. If USE_STANDARD_SPI_LIBRARY
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* is zero, an optimized custom SPI driver is used if it exists.
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*/
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#define USE_STANDARD_SPI_LIBRARY 0
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//-----------------------------------------------------------------------------
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/**
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* If the symbol ENABLE_SOFTWARE_SPI_CLASS is nonzero, the class SdFatSoftSpi
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* will be defined. If ENABLE_EXTENDED_TRANSFER_CLASS is also nonzero,
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* the class SdFatSoftSpiEX will be defined.
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*/
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#define ENABLE_SOFTWARE_SPI_CLASS 0
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//------------------------------------------------------------------------------
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/**
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* Set MAINTAIN_FREE_CLUSTER_COUNT nonzero to keep the count of free clusters
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* updated. This will increase the speed of the freeClusterCount() call
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* after the first call. Extra flash will be required.
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*/
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#define MAINTAIN_FREE_CLUSTER_COUNT 0
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//------------------------------------------------------------------------------
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/**
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* To enable SD card CRC checking set USE_SD_CRC nonzero.
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*
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* Set USE_SD_CRC to 1 to use a smaller CRC-CCITT function. This function
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* is slower for AVR but may be fast for ARM and other processors.
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*
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* Set USE_SD_CRC to 2 to used a larger table driven CRC-CCITT function. This
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* function is faster for AVR but may be slower for ARM and other processors.
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*/
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#define USE_SD_CRC 0
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//------------------------------------------------------------------------------
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/**
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* Handle Watchdog Timer for WiFi modules.
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*
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* Yield will be called before accessing the SPI bus if it has been more
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* than WDT_YIELD_TIME_MICROS microseconds since the last yield call by SdFat.
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*/
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#if defined(PLATFORM_ID) || defined(ESP8266)
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// If Particle device or ESP8266 call yield.
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#define WDT_YIELD_TIME_MICROS 100000
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#else
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#define WDT_YIELD_TIME_MICROS 0
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#endif
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//------------------------------------------------------------------------------
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/**
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* Set FAT12_SUPPORT nonzero to enable use if FAT12 volumes.
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* FAT12 has not been well tested and requires additional flash.
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*/
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#define FAT12_SUPPORT 0
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//------------------------------------------------------------------------------
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/**
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* Set DESTRUCTOR_CLOSES_FILE nonzero to close a file in its destructor.
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*
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* Causes use of lots of heap in ARM.
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*/
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#define DESTRUCTOR_CLOSES_FILE 0
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//------------------------------------------------------------------------------
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/**
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* Call flush for endl if ENDL_CALLS_FLUSH is nonzero
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*
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* The standard for iostreams is to call flush. This is very costly for
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* SdFat. Each call to flush causes 2048 bytes of I/O to the SD.
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*
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* SdFat has a single 512 byte buffer for SD I/O so it must write the current
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* data block to the SD, read the directory block from the SD, update the
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* directory entry, write the directory block to the SD and read the data
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* block back into the buffer.
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*
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* The SD flash memory controller is not designed for this many rewrites
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* so performance may be reduced by more than a factor of 100.
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*
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* If ENDL_CALLS_FLUSH is zero, you must call flush and/or close to force
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* all data to be written to the SD.
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*/
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#define ENDL_CALLS_FLUSH 0
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//------------------------------------------------------------------------------
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/**
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* Set USE_SEPARATE_FAT_CACHE nonzero to use a second 512 byte cache
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* for FAT table entries. This improves performance for large writes
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* that are not a multiple of 512 bytes.
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*/
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#ifdef __arm__
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#define USE_SEPARATE_FAT_CACHE 1
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#else // __arm__
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#define USE_SEPARATE_FAT_CACHE 0
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#endif // __arm__
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//------------------------------------------------------------------------------
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/**
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* Set USE_MULTI_BLOCK_IO nonzero to use multi-block SD read/write.
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*
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* Don't use mult-block read/write on small AVR boards.
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*/
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#if defined(RAMEND) && RAMEND < 3000
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#define USE_MULTI_BLOCK_IO 0
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#else // RAMEND
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#define USE_MULTI_BLOCK_IO 1
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#endif // RAMEND
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//-----------------------------------------------------------------------------
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/** Enable SDIO driver if available. */
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#if defined(__MK64FX512__) || defined(__MK66FX1M0__)
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#define ENABLE_SDIO_CLASS 1
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#define ENABLE_SDIOEX_CLASS 1
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#else // ENABLE_SDIO_CLASS
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#define ENABLE_SDIO_CLASS 0
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#endif // ENABLE_SDIO_CLASS
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//------------------------------------------------------------------------------
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/**
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* Determine the default SPI configuration.
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*/
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#if defined(__STM32F1__)
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// has multiple SPI ports
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#define SD_HAS_CUSTOM_SPI 2
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#elif defined(__AVR__)\
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|| defined(__SAM3X8E__) || defined(__SAM3X8H__)\
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|| (defined(__arm__) && defined(CORE_TEENSY))\
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|| defined(ESP8266)
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#define SD_HAS_CUSTOM_SPI 1
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#else // SD_HAS_CUSTOM_SPI
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// Use standard SPI library.
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#define SD_HAS_CUSTOM_SPI 0
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#endif // SD_HAS_CUSTOM_SPI
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//------------------------------------------------------------------------------
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/**
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* Check if API to select HW SPI port is needed.
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*/
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#if (USE_STANDARD_SPI_LIBRARY || SD_HAS_CUSTOM_SPI < 2)
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#define IMPLEMENT_SPI_PORT_SELECTION 0
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#else // USE_STANDARD_SPI_LIBRARY
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#define IMPLEMENT_SPI_PORT_SELECTION 1
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#endif // USE_STANDARD_SPI_LIBRARY
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#endif // SdFatConfig_h
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