mirror of
https://github.com/DarkMatterCore/nxdumptool.git
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46 lines
1.8 KiB
C
46 lines
1.8 KiB
C
/*
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* Copyright (c) 2020 DarkMatterCore
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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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#pragma once
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#ifndef __USB_H__
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#define __USB_H__
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#include <switch.h>
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#define USB_TRANSFER_BUFFER_SIZE 0x800000 /* 8 MiB */
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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 heap-allocated, page-aligned memory buffer that's suitable for USB transfers.
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void *usbAllocatePageAlignedBuffer(size_t size);
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/// Performs a handshake with the host device. Returns true if the host device replies with valid data within a certain time span.
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/// This should be called before usbSendFileProperties().
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bool usbPerformHandshake(void);
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/// Sends file properties to the host device before starting a file data transfer. Must be called before usbSendFileData(), and after usbPerformHandshake().
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bool usbSendFileProperties(u64 file_size, const char *filename);
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/// Performs a file data transfer. Must be continuously called after usbSendFileProperties() 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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bool usbSendFileData(void *data, u64 data_size);
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#endif /* __USB_H__ */
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