81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2020 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 <https://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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/**
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* \file
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* \brief Sd2Card class for USB Flash Drive
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*/
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#include "../SdFatConfig.h"
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#include "../SdInfo.h"
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#include "../disk_io_driver.h"
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#if DISABLED(USE_OTG_USB_HOST)
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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 EITHER(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 ENABLED(SOFTWARE_SPI)
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#warning "Auto-assigning '10' as the SD_CHIP_SELECT_PIN."
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#define SD_CHIP_SELECT_PIN 10 // Software SPI chip select pin for the SD
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#else
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// hardware pin defs
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#define SD_CHIP_SELECT_PIN SD_SS_PIN // The default chip select pin for the SD card is SS.
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#endif
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#endif
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class DiskIODriver_USBFlash : public DiskIODriver {
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private:
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uint32_t pos;
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static void usbStateDebug();
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public:
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static bool usbStartup();
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static bool isInserted();
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bool init(const uint8_t sckRateID=0, const pin_t chipSelectPin=TERN(USE_OTG_USB_HOST, 0, SD_CHIP_SELECT_PIN)) override;
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inline bool readCSD(csd_t*) override { return true; }
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inline bool readStart(const uint32_t block) override { pos = block; return isReady(); }
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inline bool readData(uint8_t *dst) override { return readBlock(pos++, dst); }
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inline bool readStop() override { return true; }
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inline bool writeStart(const uint32_t block, const uint32_t) override { pos = block; return isReady(); }
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inline bool writeData(const uint8_t *src) override { return writeBlock(pos++, src); }
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inline bool writeStop() override { return true; }
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bool readBlock(uint32_t block, uint8_t *dst) override;
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bool writeBlock(uint32_t blockNumber, const uint8_t *src) override;
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uint32_t cardSize() override;
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bool isReady() override;
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void idle() override;
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};
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