2018-07-02 10:06:17 -05:00
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/**
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* Marlin 3D Printer Firmware
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2019-02-12 15:06:53 -06:00
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* Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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2018-07-02 10:06:17 -05:00
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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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2018-11-04 02:25:55 -06:00
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#pragma once
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2018-07-02 10:06:17 -05:00
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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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2018-10-18 11:34:07 -05:00
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/* Uncomment USB_DEBUG to enable debugging.
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* 1 - basic debugging and bounds checking
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* 2 - print each block access
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*/
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//#define USB_DEBUG 1
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2018-07-02 10:06:17 -05:00
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#include "../SdFatConfig.h"
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#include "../SdInfo.h"
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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 || 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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#else // SOFTWARE_SPI
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#define SD_CHIP_SELECT_PIN SOFT_SPI_CS_PIN // SPI chip select pin
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#endif // SOFTWARE_SPI
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class Sd2Card {
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private:
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2019-01-01 15:17:48 -06:00
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typedef enum : uint8_t {
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2018-07-02 10:06:17 -05:00
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USB_HOST_UNINITIALIZED,
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2019-01-01 15:17:48 -06:00
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USB_HOST_INITIALIZED,
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USB_HOST_DELAY_INIT,
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USB_HOST_WAITING
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2018-07-02 10:06:17 -05:00
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} state_t;
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2018-10-18 11:34:07 -05:00
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static state_t state;
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uint32_t pos;
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#ifdef USB_DEBUG
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uint32_t lun0_capacity;
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#endif
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2018-07-02 10:06:17 -05:00
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static inline bool ready() { return state == USB_HOST_INITIALIZED; }
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2018-07-02 10:06:17 -05:00
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public:
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2019-01-01 15:17:48 -06:00
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bool init(const uint8_t sckRateID=0, const pin_t chipSelectPin=SD_CHIP_SELECT_PIN);
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2018-10-18 11:34:07 -05:00
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2018-07-02 10:06:17 -05:00
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static void idle();
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2019-01-01 15:17:48 -06:00
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inline bool readStart(const uint32_t block) { pos = block; return ready(); }
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inline bool readData(uint8_t* dst) { return readBlock(pos++, dst); }
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inline bool readStop() const { return true; }
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2018-07-02 10:06:17 -05:00
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2019-01-01 15:17:48 -06:00
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inline bool writeStart(const uint32_t block, const uint32_t eraseCount) { UNUSED(eraseCount); pos = block; return ready(); }
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inline bool writeData(uint8_t* src) { return writeBlock(pos++, src); }
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inline bool writeStop() const { return true; }
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2018-07-02 10:06:17 -05:00
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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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2018-10-18 11:34:07 -05:00
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uint32_t cardSize();
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static bool isInserted();
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2018-07-02 10:06:17 -05:00
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};
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