160 lines
4.2 KiB
C++
160 lines
4.2 KiB
C++
/**
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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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#include "../../inc/MarlinConfigPre.h"
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#if ENABLED(USB_FLASH_DRIVE_SUPPORT)
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#include "lib/Usb.h"
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#include "lib/masstorage.h"
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#include "Sd2Card_FlashDrive.h"
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#include <SPI.h>
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#include "../../core/serial.h"
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USB usb;
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BulkOnly bulk(&usb);
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Sd2Card::state_t Sd2Card::state;
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uint32_t Sd2Card::block;
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bool Sd2Card::usbHostReady() {
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return state == USB_HOST_INITIALIZED;
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}
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bool Sd2Card::isInserted() {
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return usb.getUsbTaskState() == USB_STATE_RUNNING;
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}
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// Marlin calls this whenever an SD card is detected, so this method
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// should not be used to initialize the USB host library
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bool Sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin) {
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if (!usbHostReady()) return false;
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if (!bulk.LUNIsGood(0)) {
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SERIAL_ECHOLNPGM("LUN zero is not good\n");
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return false;
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}
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SERIAL_ECHOLNPAIR("LUN Capacity: ",bulk.GetCapacity(0));
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const uint32_t sectorSize = bulk.GetSectorSize(0);
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if (sectorSize != 512) {
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SERIAL_ECHOLNPAIR("Expecting sector size of 512, got: ",sectorSize);
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return false;
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}
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return true;
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}
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void Sd2Card::idle() {
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static uint32_t next_retry;
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switch (state) {
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case USB_HOST_DELAY_INIT:
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next_retry = millis() + 10000;
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state = USB_HOST_WAITING;
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break;
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case USB_HOST_WAITING:
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if (millis() > next_retry) {
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next_retry = millis() + 10000;
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state = USB_HOST_UNINITIALIZED;
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}
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break;
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case USB_HOST_UNINITIALIZED:
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SERIAL_ECHOLNPGM("Starting USB host");
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if (!usb.start()) {
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SERIAL_ECHOLNPGM("USB host failed to start. Will retry in 10 seconds.");
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state = USB_HOST_DELAY_INIT;
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}
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else {
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SERIAL_ECHOLNPGM("USB host initialized");
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state = USB_HOST_INITIALIZED;
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}
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break;
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case USB_HOST_INITIALIZED:
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const uint8_t lastUsbTaskState = usb.getUsbTaskState();
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usb.Task();
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const uint8_t newUsbTaskState = usb.getUsbTaskState();
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if (lastUsbTaskState == USB_STATE_RUNNING && newUsbTaskState != USB_STATE_RUNNING) {
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// the user pulled the flash drive. Make sure the bulk storage driver releases the address
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SERIAL_ECHOLNPGM("Drive removed\n");
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//bulk.Release();
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}
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if (lastUsbTaskState != USB_STATE_RUNNING && newUsbTaskState == USB_STATE_RUNNING)
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SERIAL_ECHOLNPGM("Drive inserted\n");
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break;
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}
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}
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uint32_t Sd2Card::cardSize() {
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if (!usbHostReady()) return 0;
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return bulk.GetCapacity(0);
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}
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bool Sd2Card::readData(uint8_t* dst) {
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return readBlock(block++, dst);
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}
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bool Sd2Card::readStart(uint32_t blockNumber) {
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block = blockNumber;
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return true;
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}
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bool Sd2Card::readStop() {
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return usbHostReady();
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}
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bool Sd2Card::readBlock(uint32_t block, uint8_t* dst) {
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if (!usbHostReady()) {
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SERIAL_ECHOLNPGM("Read from uninitalized USB host");
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return false;
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}
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return bulk.Read(0, block, 512, 1, dst) == 0;
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}
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bool Sd2Card::writeData(const uint8_t* src) {
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return writeBlock(block++, src);
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}
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bool Sd2Card::writeStart(uint32_t blockNumber, uint32_t eraseCount) {
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block = blockNumber;
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return true;
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}
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bool Sd2Card::writeStop() {
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return usbHostReady();
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}
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bool Sd2Card::writeBlock(uint32_t blockNumber, const uint8_t* src) {
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if (!usbHostReady()) {
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SERIAL_ECHOLNPGM("Write to uninitalized USB host");
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return false;
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}
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return bulk.Write(0, blockNumber, 512, 1, src) == 0;
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}
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#endif // USB_FLASH_DRIVE_SUPPORT
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