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88 lines
3.1 KiB
88 lines
3.1 KiB
/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program 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 program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* \file
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* \brief Sd2Card class for V2 SD/SDHC cards
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*/
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#ifndef _FAKE_SD2CARD_H_
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#define _FAKE_SD2CARD_H_
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#include "SdFatConfig.h"
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#include "SdInfo.h"
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// SPI speed is F_CPU/2^(1 + index), 0 <= index <= 6
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uint8_t const SPI_FULL_SPEED = 0, // Set SCK to max rate of F_CPU/2. See Sd2Card::setSckRate().
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SPI_HALF_SPEED = 1, // Set SCK rate to F_CPU/4. See Sd2Card::setSckRate().
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SPI_QUARTER_SPEED = 2, // Set SCK rate to F_CPU/8. See Sd2Card::setSckRate().
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SPI_EIGHTH_SPEED = 3, // Set SCK rate to F_CPU/16. See Sd2Card::setSckRate().
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SPI_SIXTEENTH_SPEED = 4; // Set SCK rate to F_CPU/32. See Sd2Card::setSckRate().
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/**
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* define SOFTWARE_SPI to use bit-bang SPI
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*/
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#if MEGA_SOFT_SPI
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#define SOFTWARE_SPI
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#elif USE_SOFTWARE_SPI
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#define SOFTWARE_SPI
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#endif
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// SPI pin definitions - do not edit here - change in SdFatConfig.h
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#if DISABLED(SOFTWARE_SPI)
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// hardware pin defs
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#define SD_CHIP_SELECT_PIN SS_PIN // The default chip select pin for the SD card is SS.
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// The following three pins must not be redefined for hardware SPI.
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#define SPI_MOSI_PIN MOSI_PIN // SPI Master Out Slave In pin
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#define SPI_MISO_PIN MISO_PIN // SPI Master In Slave Out pin
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#define SPI_SCK_PIN SCK_PIN // SPI Clock pin
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#else // SOFTWARE_SPI
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#define SD_CHIP_SELECT_PIN SOFT_SPI_CS_PIN // SPI chip select pin
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#define SPI_MOSI_PIN SOFT_SPI_MOSI_PIN // SPI Master Out Slave In pin
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#define SPI_MISO_PIN SOFT_SPI_MISO_PIN // SPI Master In Slave Out pin
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#define SPI_SCK_PIN SOFT_SPI_SCK_PIN // SPI Clock pin
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#endif // SOFTWARE_SPI
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/**
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* \class Sd2Card
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* \brief Raw access to SD and SDHC flash memory cards.
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*/
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class Sd2Card {
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private:
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static bool usbHostReady();
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public:
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static bool isInserted();
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/**
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* Initialize an SD flash memory card with default clock rate and chip
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* select pin. See sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin).
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*
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* \return true for success or false for failure.
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*/
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bool init(uint8_t sckRateID = 0, uint8_t chipSelectPin = SD_CHIP_SELECT_PIN);
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bool readBlock(uint32_t block, uint8_t* dst);
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bool writeBlock(uint32_t blockNumber, const uint8_t* src);
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};
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#endif // _FAKE_SD2CARD_H_
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