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/**

 * Marlin 3D Printer Firmware

 * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]

 *

 * Based on Sprinter and grbl.

 * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm

 *

 * This program 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 program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

 *

 */

/**

 * \file

 * \brief Sd2Card class for V2 SD/SDHC cards

 */

/**

 * Arduino Sd2Card Library

 * Copyright (C) 2009 by William Greiman

 *

 * This file is part of the Arduino Sd2Card Library

 */

#ifndef _SD2CARD_H_

#define _SD2CARD_H_

#include "SdFatConfig.h"

#include "SdInfo.h"

// SPI speed is F_CPU/2^(1 + index), 0 <= index <= 6

uint8_t const SPI_FULL_SPEED = 0,         // Set SCK to max rate of F_CPU/2. See Sd2Card::setSckRate().

              SPI_HALF_SPEED = 1,         // Set SCK rate to F_CPU/4. See Sd2Card::setSckRate().

              SPI_QUARTER_SPEED = 2,      // Set SCK rate to F_CPU/8. See Sd2Card::setSckRate().

              SPI_EIGHTH_SPEED = 3,       // Set SCK rate to F_CPU/16. See Sd2Card::setSckRate().

              SPI_SIXTEENTH_SPEED = 4;    // Set SCK rate to F_CPU/32. See Sd2Card::setSckRate().

uint16_t const SD_INIT_TIMEOUT = 2000,    // init timeout ms

               SD_ERASE_TIMEOUT = 10000,  // erase timeout ms

               SD_READ_TIMEOUT = 300,     // read timeout ms

               SD_WRITE_TIMEOUT = 600;    // write time out ms

// SD card errors

uint8_t const SD_CARD_ERROR_CMD0 = 0X1,                 // timeout error for command CMD0 (initialize card in SPI mode)

              SD_CARD_ERROR_CMD8 = 0X2,                 // CMD8 was not accepted - not a valid SD card

              SD_CARD_ERROR_CMD12 = 0X3,                // card returned an error response for CMD12 (write stop)

              SD_CARD_ERROR_CMD17 = 0X4,                // card returned an error response for CMD17 (read block)

              SD_CARD_ERROR_CMD18 = 0X5,                // card returned an error response for CMD18 (read multiple block)

              SD_CARD_ERROR_CMD24 = 0X6,                // card returned an error response for CMD24 (write block)

              SD_CARD_ERROR_CMD25 = 0X7,                // WRITE_MULTIPLE_BLOCKS command failed

              SD_CARD_ERROR_CMD58 = 0X8,                // card returned an error response for CMD58 (read OCR)

              SD_CARD_ERROR_ACMD23 = 0X9,               // SET_WR_BLK_ERASE_COUNT failed

              SD_CARD_ERROR_ACMD41 = 0XA,               // ACMD41 initialization process timeout

              SD_CARD_ERROR_BAD_CSD = 0XB,              // card returned a bad CSR version field

              SD_CARD_ERROR_ERASE = 0XC,                // erase block group command failed

              SD_CARD_ERROR_ERASE_SINGLE_BLOCK = 0XD,   // card not capable of single block erase

              SD_CARD_ERROR_ERASE_TIMEOUT = 0XE,        // Erase sequence timed out

              SD_CARD_ERROR_READ = 0XF,                 // card returned an error token instead of read data

              SD_CARD_ERROR_READ_REG = 0x10,            // read CID or CSD failed

              SD_CARD_ERROR_READ_TIMEOUT = 0x11,        // timeout while waiting for start of read data

              SD_CARD_ERROR_STOP_TRAN = 0x12,           // card did not accept STOP_TRAN_TOKEN

              SD_CARD_ERROR_WRITE = 0x13,               // card returned an error token as a response to a write operation

              SD_CARD_ERROR_WRITE_BLOCK_ZERO = 0x14,    // REMOVE - not used ... attempt to write protected block zero

              SD_CARD_ERROR_WRITE_MULTIPLE = 0x15,      // card did not go ready for a multiple block write

              SD_CARD_ERROR_WRITE_PROGRAMMING = 0x16,   // card returned an error to a CMD13 status check after a write

              SD_CARD_ERROR_WRITE_TIMEOUT = 0x17,       // timeout occurred during write programming

              SD_CARD_ERROR_SCK_RATE = 0x18,            // incorrect rate selected

              SD_CARD_ERROR_INIT_NOT_CALLED = 0x19,     // init() not called

              SD_CARD_ERROR_CRC = 0x20;                 // crc check error

// card types

uint8_t const SD_CARD_TYPE_SD1  = 1,                    // Standard capacity V1 SD card

              SD_CARD_TYPE_SD2  = 2,                    // Standard capacity V2 SD card

              SD_CARD_TYPE_SDHC = 3;                    // High Capacity SD card

/**

 * define SOFTWARE_SPI to use bit-bang SPI

 */

#if MEGA_SOFT_SPI

  #define SOFTWARE_SPI

#elif USE_SOFTWARE_SPI

  #define SOFTWARE_SPI

#endif

// SPI pin definitions - do not edit here - change in SdFatConfig.h

#if DISABLED(SOFTWARE_SPI)

  // hardware pin defs

  #define SD_CHIP_SELECT_PIN SS_PIN   // The default chip select pin for the SD card is SS.

  // The following three pins must not be redefined for hardware SPI.

  #define SPI_MOSI_PIN MOSI_PIN       // SPI Master Out Slave In pin

  #define SPI_MISO_PIN MISO_PIN       // SPI Master In Slave Out pin

  #define SPI_SCK_PIN SCK_PIN         // SPI Clock pin

#else  // SOFTWARE_SPI

  #define SD_CHIP_SELECT_PIN SOFT_SPI_CS_PIN  // SPI chip select pin

  #define SPI_MOSI_PIN SOFT_SPI_MOSI_PIN      // SPI Master Out Slave In pin

  #define SPI_MISO_PIN SOFT_SPI_MISO_PIN      // SPI Master In Slave Out pin

  #define SPI_SCK_PIN SOFT_SPI_SCK_PIN        // SPI Clock pin

#endif  // SOFTWARE_SPI

/**

 * \class Sd2Card

 * \brief Raw access to SD and SDHC flash memory cards.

 */

class Sd2Card {

  public:

  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,

            pin_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_,

          errorCode_,

          spiRate_,

          status_,

          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_