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GameCardImageDumpTask is a derived class of DataTransferTask, and it's designed to dump a gamecard image using the options selected by the user (which must be passed from a GameCardImageDumpOptionsFrame object). It uses std::optional<std::string> as its return type -- the idea behind this is to return error strings that may later be displayed by an ErrorFrame during the dump process (views not yet implemented). FileWriter is a class that encapsulates write operations to different storage mediums (SD card, USB host and UMS devices), based on the provided input path. It is used by GameCardImageDumpTask to painlessly write data to the right output storage without explicitly having to implement multiple code paths for all storage types as part of the actual dump code. Furthermore, FileWriter also supports writing split files to FAT-formatted UMS devices if an output file is >= 4 GiB -- part file handling is completely abstracted away from any callers. Other changes include: * AsyncTask: rename all class methods to use PascalCase naming. * AsyncTask: rename get() -> GetResult(). * DataTransferTask: reflect the changes made to AsyncTask. * DataTransferTask: pause the RepeatingTask right after LoopCallback() returns true instead of pausing it in the cancel/post-execute callbacks. * DataTransferTask: add private FormatTimeString() method. * DataTransferTask: remove superfluous override for DoInBackground() -- classes derived from DataTransferTask must provide it on their own, anyway. * DataTransferTask: add public GetDurationString() method. * defines: update FAT32_FILESIZE_LIMIT macro to use UINT32_MAX. * defines: add CONCATENATION_FILE_PART_SIZE macro (used by the new FileWriter class). * DownloadTask: reflect the changes made to AsyncTask. * DumpOptionsFrame: file extension is no longer stored as a class member, nor required by the class constructor. * DumpOptionsFrame: change the return type for GetOutputFilePath() to bool. The method now saves its output to a variable passed by reference. * GameCardImageDumpOptionsFrame: reflect the changes made to DumpOptionsFrame. * i18n: update localization strings where applicable. * nxdt_utils: fix a potential buffer overflow in utilsGetFileSystemStatsByPath(). * OptionsTab: reflect the changes made to AsyncTask. * usb: add const qualifier to the input buffer required by usbSendFileData(). * usb: add const qualifier to the input buffer required by usbSendNspHeader().
95 lines
4.8 KiB
C
95 lines
4.8 KiB
C
/*
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* usb.h
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*
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* Heavily based in usb_comms from libnx.
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*
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* Copyright (c) 2018-2020, Switchbrew and libnx contributors.
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* Copyright (c) 2020-2024, DarkMatterCore <pabloacurielz@gmail.com>.
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*
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* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
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*
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* nxdumptool 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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* nxdumptool 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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#pragma once
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#ifndef __USB_H__
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#define __USB_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define USB_TRANSFER_BUFFER_SIZE 0x800000 /* 8 MiB. */
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/// Used to indicate the USB speed selected by the host device.
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typedef enum {
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UsbHostSpeed_None = 0,
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UsbHostSpeed_FullSpeed = 1, ///< USB 1.x.
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UsbHostSpeed_HighSpeed = 2, ///< USB 2.0.
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UsbHostSpeed_SuperSpeed = 3, ///< USB 3.0.
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UsbHostSpeed_Count = 4 ///< Total values supported by this enum.
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} UsbHostSpeed;
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/// Initializes the USB interface, input and output endpoints and allocates an internal transfer buffer.
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bool usbInitialize(void);
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/// Closes the USB interface, input and output endpoints and frees the transfer buffer.
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void usbExit(void);
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/// Returns a pointer to a dynamically allocated, page aligned memory buffer that's suitable for USB transfers.
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void *usbAllocatePageAlignedBuffer(size_t size);
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/// Used to check if the console has been connected to a USB host device and if a valid USB session has been established.
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/// Returns a value from the UsbHostSpeed enum.
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u8 usbIsReady(void);
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/// Sends file properties to the host device before starting a file data transfer. If needed, it must be called before usbSendFileData().
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/// 'file_size' may be zero if an empty file shall be created, in which case no file data transfer will be necessary.
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/// Calling this function before finishing an ongoing file data transfer will result in an error.
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/// Under NSP transfer mode, this function must be called right before transferring data from each NSP file entry to the host device, which should in turn write it all to the same output file.
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bool usbSendFileProperties(u64 file_size, const char *filename);
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/// Sends NSP properties to the host device and enables NSP transfer mode. If needed, it must be called before usbSendFileData().
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/// Both 'nsp_size' and 'nsp_header_size' must be greater than zero. 'nsp_size' must also be greater than 'nsp_header_size'.
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/// Calling this function after NSP transfer mode has already been enabled will result in an error.
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/// The host device should immediately write 'nsp_header_size' padding at the start of the output file and start listening for further usbSendFileProperties() calls, or a usbSendNspHeader() call.
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bool usbSendNspProperties(u64 nsp_size, const char *filename, u32 nsp_header_size);
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/// Performs a file data transfer. Must be continuously called after usbSendFileProperties() / usbSendNspProperties() until all file data has been transferred.
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/// Data chunk size must not exceed USB_TRANSFER_BUFFER_SIZE.
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/// If the last file data chunk is aligned to the endpoint max packet size, the host device should expect a Zero Length Termination (ZLT) packet.
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/// Calling this function if there's no remaining data to transfer will result in an error.
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bool usbSendFileData(const void *data, u64 data_size);
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/// Used to gracefully cancel an ongoing file transfer. The current USB session is kept alive.
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void usbCancelFileTransfer(void);
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/// Sends NSP header data to the host device, making it rewind the NSP file pointer to write this data, essentially finishing the NSP transfer process.
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/// Must be called after the data from all NSP file entries has been transferred using both usbSendNspProperties() and usbSendFileData() calls.
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/// If the NSP header size is aligned to the endpoint max packet size, the host device should expect a Zero Length Termination (ZLT) packet.
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bool usbSendNspHeader(const void *nsp_header, u32 nsp_header_size);
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/// Informs the host device that an extracted filesystem dump (e.g. HFS, PFS, RomFS) is about to begin.
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bool usbStartExtractedFsDump(u64 extracted_fs_size, const char *extracted_fs_root_path);
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/// Informs the host device that a previously started filesystem dump (via usbStartExtractedFsDump()) has finished.
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/// This is only issued after all extracted file entries have been successfully transferred to the host device.
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void usbEndExtractedFsDump(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __USB_H__ */
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