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MarlinFirmware/Marlin/Sd2Card.h
Scott Lahteine 2390f6d3ab Cleanup, apply standards to SD lib, cardreader
2017-11-15 01:09:06 -06:00

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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,
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_,
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_
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