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https://github.com/mofeng-git/One-KVM.git
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73 lines
2.8 KiB
C++
73 lines
2.8 KiB
C++
/*****************************************************************************
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# #
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# KVMD - The main PiKVM daemon. #
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# #
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# Copyright (C) 2018-2023 Maxim Devaev <mdevaev@gmail.com> #
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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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#include <USBComposite.h>
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namespace DRIVERS {
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class HidWrapper {
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public:
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void begin() {
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if (_init) {
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return;
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}
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_init = true;
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_report_descriptor_length = 0;
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for (unsigned index = 0; index < _count; ++index) {
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_report_descriptor_length += _descriptors_size[index];
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}
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_report_descriptor = new uint8[_report_descriptor_length];
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size_t offset = 0;
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for (unsigned index = 0; index < _count; ++index) {
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memcpy(_report_descriptor + offset, _report_descriptors[index], _descriptors_size[index]);
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offset += _descriptors_size[index];
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}
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usbHid.begin(_report_descriptor, _report_descriptor_length);
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}
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void addReportDescriptor(const uint8_t *report_descriptor, uint16_t report_descriptor_length) {
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_report_descriptors[_count] = report_descriptor;
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_descriptors_size[_count] = report_descriptor_length;
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++_count;
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}
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USBHID usbHid;
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private:
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bool _init = false;
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static constexpr uint8_t MAX_USB_DESCRIPTORS = 2;
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const uint8_t *_report_descriptors[MAX_USB_DESCRIPTORS];
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uint8_t _descriptors_size[MAX_USB_DESCRIPTORS];
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uint8_t _count = 0;
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uint8_t *_report_descriptor;
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uint16_t _report_descriptor_length;
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};
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}
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