Marlin 2.0 for Flying Bear 4S/5
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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/>.
*
*/
#include "../../inc/MarlinConfigPre.h"
#if ENABLED(USB_FLASH_DRIVE_SUPPORT)
#include "../../core/serial.h"
#include "lib/Usb.h"
#include "lib/masstorage.h"
#include "Sd2Card_FlashDrive.h"
USB usb;
BulkOnly bulk(&usb);
Sd2Card::state_t Sd2Card::state;
// The USB library needs to be called periodically to detect USB thumbdrive
// insertion and removals. Call this idle() function periodically to allow
// the USB library to monitor for such events. This function also takes care
// of initializing the USB library for the first time.
void Sd2Card::idle() {
static uint32_t next_retry;
switch (state) {
case USB_HOST_DELAY_INIT:
next_retry = millis() + 10000;
state = USB_HOST_WAITING;
break;
case USB_HOST_WAITING:
if (ELAPSED(millis(), next_retry)) {
next_retry = millis() + 10000;
state = USB_HOST_UNINITIALIZED;
}
break;
case USB_HOST_UNINITIALIZED:
SERIAL_ECHOLNPGM("Starting USB host");
if (!usb.start()) {
SERIAL_ECHOLNPGM("USB host failed to start. Will retry in 10 seconds.");
state = USB_HOST_DELAY_INIT;
}
else {
SERIAL_ECHOLNPGM("USB host initialized");
state = USB_HOST_INITIALIZED;
}
break;
case USB_HOST_INITIALIZED:
const uint8_t lastUsbTaskState = usb.getUsbTaskState();
usb.Task();
const uint8_t newUsbTaskState = usb.getUsbTaskState();
if (lastUsbTaskState == USB_STATE_RUNNING && newUsbTaskState != USB_STATE_RUNNING) {
// the user pulled the flash drive. Make sure the bulk storage driver releases the address
#ifdef USB_DEBUG
SERIAL_ECHOLNPGM("USB drive removed");
#endif
//bulk.Release();
}
if (lastUsbTaskState != USB_STATE_RUNNING && newUsbTaskState == USB_STATE_RUNNING) {
#ifdef USB_DEBUG
SERIAL_ECHOLNPGM("USB drive inserted");
#endif
}
break;
}
}
// Marlin calls this function to check whether an USB drive is inserted.
// This is equivalent to polling the SD_DETECT when using SD cards.
bool Sd2Card::isInserted() {
return usb.getUsbTaskState() == USB_STATE_RUNNING;
};
// Marlin calls this to initialize an SD card once it is inserted.
bool Sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin) {
if (!ready()) return false;
if (!bulk.LUNIsGood(0)) {
SERIAL_ECHOLNPGM("LUN zero is not good");
return false;
}
const uint32_t sectorSize = bulk.GetSectorSize(0);
if (sectorSize != 512) {
SERIAL_ECHOLNPAIR("Expecting sector size of 512, got:", sectorSize);
return false;
}
#ifdef USB_DEBUG
lun0_capacity = bulk.GetCapacity(0);
SERIAL_ECHOLNPAIR("LUN Capacity (in blocks): ", lun0_capacity);
#endif
return true;
}
// Returns the capacity of the card in blocks.
uint32_t Sd2Card::cardSize() {
if (!ready()) return 0;
#ifndef USB_DEBUG
const uint32_t
#endif
lun0_capacity = bulk.GetCapacity(0);
return lun0_capacity;
}
bool Sd2Card::readBlock(uint32_t block, uint8_t* dst) {
if (!ready()) return false;
#ifdef USB_DEBUG
if (block >= lun0_capacity) {
SERIAL_ECHOLNPAIR("Attempt to read past end of LUN: ", block);
return false;
}
#if USB_DEBUG > 1
SERIAL_ECHOLNPAIR("Read block ", block);
#endif
#endif
return bulk.Read(0, block, 512, 1, dst) == 0;
}
bool Sd2Card::writeBlock(uint32_t block, const uint8_t* src) {
if (!ready()) return false;
#ifdef USB_DEBUG
if (block >= lun0_capacity) {
SERIAL_ECHOLNPAIR("Attempt to write past end of LUN: ", block);
return false;
}
#if USB_DEBUG > 1
SERIAL_ECHOLNPAIR("Write block ", block);
#endif
#endif
return bulk.Write(0, block, 512, 1, src) == 0;
}
#endif // USB_FLASH_DRIVE_SUPPORT