mirror of
https://github.com/PixlOne/logiops.git
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67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
/*
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* Copyright 2019-2023 PixlOne
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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 <backend/hidpp20/Feature.h>
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#include <backend/hidpp20/EssentialFeature.h>
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#include <backend/hidpp20/features/Root.h>
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#include <backend/hidpp20/Error.h>
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#include <cassert>
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using namespace logid::backend::hidpp20;
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std::vector<uint8_t> EssentialFeature::callFunction(uint8_t function_id,
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std::vector<uint8_t>& params) {
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hidpp::Report::Type type;
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assert(params.size() <= hidpp::LongParamLength);
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if (params.size() <= hidpp::ShortParamLength)
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type = hidpp::Report::Type::Short;
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else if (params.size() <= hidpp::LongParamLength)
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type = hidpp::Report::Type::Long;
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else
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throw hidpp::Report::InvalidReportID();
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hidpp::Report request(type, _device->deviceIndex(), _index, function_id, hidpp::softwareID);
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std::copy(params.begin(), params.end(), request.paramBegin());
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auto response = _device->sendReport(request);
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return {response.paramBegin(), response.paramEnd()};
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}
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EssentialFeature::EssentialFeature(hidpp::Device* dev, uint16_t _id) :
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_device(dev) {
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_index = hidpp20::FeatureID::ROOT;
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if (_id) {
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std::vector<uint8_t> getFunc_req(2);
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getFunc_req[0] = (_id >> 8) & 0xff;
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getFunc_req[1] = _id & 0xff;
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try {
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_index = this->callFunction(Root::GetFeature, getFunc_req).at(0);
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} catch (Error& e) {
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if (e.code() == Error::InvalidFeatureIndex)
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throw UnsupportedFeature(_id);
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throw e;
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}
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// 0 if not found
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if (!_index)
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throw UnsupportedFeature(_id);
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}
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}
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