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Sd2Card.h
/* Arduino Sd2Card Library * Copyright (C) 2009 by William Greiman * * This file is part of the Arduino Sd2Card Library * * This Library is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This Library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with the Arduino Sd2Card Library. If not, see * <http://www.gnu.org/licenses/>. */ #include "Marlin.h" #ifdef SDSUPPORT #ifndef Sd2Card_h #define Sd2Card_h /** * \file * \brief Sd2Card class for V2 SD/SDHC cards */ #include "SdFatConfig.h" #include "Sd2PinMap.h" #include "SdInfo.h" //------------------------------------------------------------------------------ // SPI speed is F_CPU/2^(1 + index), 0 <= index <= 6 /** Set SCK to max rate of F_CPU/2. See Sd2Card::setSckRate(). */ uint8_t const SPI_FULL_SPEED = 0; /** Set SCK rate to F_CPU/4. See Sd2Card::setSckRate(). */ uint8_t const SPI_HALF_SPEED = 1; /** Set SCK rate to F_CPU/8. See Sd2Card::setSckRate(). */ uint8_t const SPI_QUARTER_SPEED = 2; /** Set SCK rate to F_CPU/16. See Sd2Card::setSckRate(). */ uint8_t const SPI_EIGHTH_SPEED = 3; /** Set SCK rate to F_CPU/32. See Sd2Card::setSckRate(). */ uint8_t const SPI_SIXTEENTH_SPEED = 4; //------------------------------------------------------------------------------ /** init timeout ms */ uint16_t const SD_INIT_TIMEOUT = 2000; /** erase timeout ms */ uint16_t const SD_ERASE_TIMEOUT = 10000; /** read timeout ms */ uint16_t const SD_READ_TIMEOUT = 300; /** write time out ms */ uint16_t const SD_WRITE_TIMEOUT = 600; //------------------------------------------------------------------------------ // SD card errors /** timeout error for command CMD0 (initialize card in SPI mode) */ uint8_t const SD_CARD_ERROR_CMD0 = 0X1; /** CMD8 was not accepted - not a valid SD card*/ uint8_t const SD_CARD_ERROR_CMD8 = 0X2; /** card returned an error response for CMD12 (write stop) */ uint8_t const SD_CARD_ERROR_CMD12 = 0X3; /** card returned an error response for CMD17 (read block) */ uint8_t const SD_CARD_ERROR_CMD17 = 0X4; /** card returned an error response for CMD18 (read multiple block) */ uint8_t const SD_CARD_ERROR_CMD18 = 0X5; /** card returned an error response for CMD24 (write block) */ uint8_t const SD_CARD_ERROR_CMD24 = 0X6; /** WRITE_MULTIPLE_BLOCKS command failed */ uint8_t const SD_CARD_ERROR_CMD25 = 0X7; /** card returned an error response for CMD58 (read OCR) */ uint8_t const SD_CARD_ERROR_CMD58 = 0X8; /** SET_WR_BLK_ERASE_COUNT failed */ uint8_t const SD_CARD_ERROR_ACMD23 = 0X9; /** ACMD41 initialization process timeout */ uint8_t const SD_CARD_ERROR_ACMD41 = 0XA; /** card returned a bad CSR version field */ uint8_t const SD_CARD_ERROR_BAD_CSD = 0XB; /** erase block group command failed */ uint8_t const SD_CARD_ERROR_ERASE = 0XC; /** card not capable of single block erase */ uint8_t const SD_CARD_ERROR_ERASE_SINGLE_BLOCK = 0XD; /** Erase sequence timed out */ uint8_t const SD_CARD_ERROR_ERASE_TIMEOUT = 0XE; /** card returned an error token instead of read data */ uint8_t const SD_CARD_ERROR_READ = 0XF; /** read CID or CSD failed */ uint8_t const SD_CARD_ERROR_READ_REG = 0X10; /** timeout while waiting for start of read data */ uint8_t const SD_CARD_ERROR_READ_TIMEOUT = 0X11; /** card did not accept STOP_TRAN_TOKEN */ uint8_t const SD_CARD_ERROR_STOP_TRAN = 0X12; /** card returned an error token as a response to a write operation */ uint8_t const SD_CARD_ERROR_WRITE = 0X13; /** attempt to write protected block zero */ uint8_t const SD_CARD_ERROR_WRITE_BLOCK_ZERO = 0X14; // REMOVE - not used /** card did not go ready for a multiple block write */ uint8_t const SD_CARD_ERROR_WRITE_MULTIPLE = 0X15; /** card returned an error to a CMD13 status check after a write */ uint8_t const SD_CARD_ERROR_WRITE_PROGRAMMING = 0X16; /** timeout occurred during write programming */ uint8_t const SD_CARD_ERROR_WRITE_TIMEOUT = 0X17; /** incorrect rate selected */ uint8_t const SD_CARD_ERROR_SCK_RATE = 0X18; /** init() not called */ uint8_t const SD_CARD_ERROR_INIT_NOT_CALLED = 0X19; //------------------------------------------------------------------------------ // card types /** Standard capacity V1 SD card */ uint8_t const SD_CARD_TYPE_SD1 = 1; /** Standard capacity V2 SD card */ uint8_t const SD_CARD_TYPE_SD2 = 2; /** High Capacity SD card */ uint8_t const SD_CARD_TYPE_SDHC = 3; /** * define SOFTWARE_SPI to use bit-bang SPI */ //------------------------------------------------------------------------------ #if MEGA_SOFT_SPI && (defined(__AVR_ATmega1280__)||defined(__AVR_ATmega2560__)) #define SOFTWARE_SPI #elif USE_SOFTWARE_SPI #define SOFTWARE_SPI #endif // MEGA_SOFT_SPI //------------------------------------------------------------------------------ // SPI pin definitions - do not edit here - change in SdFatConfig.h // #ifndef SOFTWARE_SPI // hardware pin defs /** The default chip select pin for the SD card is SS. */ uint8_t const SD_CHIP_SELECT_PIN = SS_PIN; // The following three pins must not be redefined for hardware SPI. /** SPI Master Out Slave In pin */ uint8_t const SPI_MOSI_PIN = MOSI_PIN; /** SPI Master In Slave Out pin */ uint8_t const SPI_MISO_PIN = MISO_PIN; /** SPI Clock pin */ uint8_t const SPI_SCK_PIN = SCK_PIN; #else // SOFTWARE_SPI /** SPI chip select pin */ uint8_t const SD_CHIP_SELECT_PIN = SOFT_SPI_CS_PIN; /** SPI Master Out Slave In pin */ uint8_t const SPI_MOSI_PIN = SOFT_SPI_MOSI_PIN; /** SPI Master In Slave Out pin */ uint8_t const SPI_MISO_PIN = SOFT_SPI_MISO_PIN; /** SPI Clock pin */ uint8_t const SPI_SCK_PIN = SOFT_SPI_SCK_PIN; #endif // SOFTWARE_SPI //------------------------------------------------------------------------------ /** * \class Sd2Card * \brief Raw access to SD and SDHC flash memory cards. */ class Sd2Card { public: /** Construct an instance of Sd2Card. */ Sd2Card() : errorCode_(SD_CARD_ERROR_INIT_NOT_CALLED), type_(0) {} uint32_t cardSize(); bool erase(uint32_t firstBlock, uint32_t lastBlock); bool eraseSingleBlockEnable(); /** * Set SD error code. * \param[in] code value for error code. */ void error(uint8_t code) {errorCode_ = code;} /** * \return error code for last error. See Sd2Card.h for a list of error codes. */ int errorCode() const {return errorCode_;} /** \return error data for last error. */ int errorData() const {return status_;} /** * Initialize an SD flash memory card with default clock rate and chip * select pin. See sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin). * * \return true for success or false for failure. */ bool init(uint8_t sckRateID = SPI_FULL_SPEED, uint8_t chipSelectPin = SD_CHIP_SELECT_PIN); bool readBlock(uint32_t block, uint8_t* dst); /** * Read a card's CID register. The CID contains card identification * information such as Manufacturer ID, Product name, Product serial * number and Manufacturing date. * * \param[out] cid pointer to area for returned data. * * \return true for success or false for failure. */ bool readCID(cid_t* cid) { return readRegister(CMD10, cid); } /** * Read a card's CSD register. The CSD contains Card-Specific Data that * provides information regarding access to the card's contents. * * \param[out] csd pointer to area for returned data. * * \return true for success or false for failure. */ bool readCSD(csd_t* csd) { return readRegister(CMD9, csd); } bool readData(uint8_t *dst); bool readStart(uint32_t blockNumber); bool readStop(); bool setSckRate(uint8_t sckRateID); /** Return the card type: SD V1, SD V2 or SDHC * \return 0 - SD V1, 1 - SD V2, or 3 - SDHC. */ int type() const {return type_;} bool writeBlock(uint32_t blockNumber, const uint8_t* src); bool writeData(const uint8_t* src); bool writeStart(uint32_t blockNumber, uint32_t eraseCount); bool writeStop(); private: //---------------------------------------------------------------------------- uint8_t chipSelectPin_; uint8_t errorCode_; uint8_t spiRate_; uint8_t status_; uint8_t type_; // private functions uint8_t cardAcmd(uint8_t cmd, uint32_t arg) { cardCommand(CMD55, 0); return cardCommand(cmd, arg); } uint8_t cardCommand(uint8_t cmd, uint32_t arg); bool readData(uint8_t* dst, uint16_t count); bool readRegister(uint8_t cmd, void* buf); void chipSelectHigh(); void chipSelectLow(); void type(uint8_t value) {type_ = value;} bool waitNotBusy(uint16_t timeoutMillis); bool writeData(uint8_t token, const uint8_t* src); }; #endif // Sd2Card_h #endif
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