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121 lines
3.5 KiB
121 lines
3.5 KiB
#include <assert.h> |
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#include "Device.h" |
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#include "Report.h" |
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#include "../hidpp20/features/Root.h" |
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#include "../hidpp20/Error.h" |
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#include "../hidpp10/Error.h" |
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using namespace logid::backend; |
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using namespace logid::backend::hidpp; |
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const char* Device::InvalidDevice::what() const noexcept |
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{ |
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switch(_reason) |
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{ |
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case NoHIDPPReport: |
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return "Invalid HID++ device"; |
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case InvalidRawDevice: |
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return "Invalid raw device"; |
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} |
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} |
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Device::InvalidDevice::Reason Device::InvalidDevice::code() const noexcept |
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{ |
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return _reason; |
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} |
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/// TODO: Initialize a single RawDevice for each path. |
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Device::Device(const std::string& path, DeviceIndex index): |
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raw_device (std::make_shared<raw::RawDevice>(path)), path (path), index (index) |
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{ |
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supported_reports = getSupportedReports(raw_device->reportDescriptor()); |
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if(!supported_reports) |
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throw InvalidDevice(InvalidDevice::NoHIDPPReport); |
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try |
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{ |
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Report versionRequest(Report::Type::Short, index, hidpp20::FeatureID::ROOT, |
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hidpp20::Root::Ping, LOGID_HIDPP_SOFTWARE_ID); |
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auto versionResponse = sendReport(versionRequest); |
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auto versionResponse_params = versionResponse.paramBegin(); |
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_version = std::make_tuple(versionResponse_params[0], versionResponse_params[1]); |
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} |
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catch(hidpp10::Error &e) |
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{ |
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// Valid HID++ 1.0 devices should send an InvalidSubID error |
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if(e.code() != hidpp10::Error::InvalidSubID) |
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throw; |
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// HID++ 2.0 is not supported, assume HID++ 1.0 |
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_version = std::make_tuple(1, 0); |
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} |
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// Pass all HID++ events with device index to this device. |
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RawEventHandler rawEventHandler; |
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rawEventHandler.condition = [index](std::vector<uint8_t>& report)->bool |
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{ |
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return (report[Offset::Type] == Report::Type::Short || |
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report[Offset::Type] == Report::Type::Long) && (report[Offset::DeviceIndex] == index); |
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}; |
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rawEventHandler.callback = [this](std::vector<uint8_t>& report)->void |
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{ |
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Report _report(report); |
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this->handleEvent(_report); |
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}; |
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raw_device->addEventHandler("DEV_" + std::to_string(index), rawEventHandler); |
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} |
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void Device::addEventHandler(const std::string& nickname, const std::shared_ptr<EventHandler>& handler) |
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{ |
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auto it = event_handlers.find(nickname); |
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assert(it == event_handlers.end()); |
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event_handlers.emplace(nickname, handler); |
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} |
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void Device::removeEventHandler(const std::string& nickname) |
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{ |
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event_handlers.erase(nickname); |
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} |
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void Device::handleEvent(Report& report) |
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{ |
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for(auto& handler : event_handlers) |
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if(handler.second->condition(report)) |
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handler.second->callback(report); |
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} |
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Report Device::sendReport(Report& report) |
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{ |
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switch(report.type()) |
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{ |
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case Report::Type::Short: |
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if(!(supported_reports & HIDPP_REPORT_SHORT_SUPPORTED)) |
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report.setType(Report::Type::Long); |
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break; |
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case Report::Type::Long: |
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/* Report can be truncated, but that isn't a good idea. */ |
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assert(supported_reports & HIDPP_REPORT_LONG_SUPPORTED); |
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} |
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auto raw_response = raw_device->sendReport(report.rawReport()); |
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Report response(raw_response); |
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Report::hidpp10_error hidpp10Error{}; |
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if(response.isError10(&hidpp10Error)) |
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throw hidpp10::Error(hidpp10Error.error_code); |
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Report::hidpp20_error hidpp20Error{}; |
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if(response.isError20(&hidpp20Error)) |
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throw hidpp10::Error(hidpp20Error.error_code); |
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return response; |
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} |
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void Device::listen() |
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{ |
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raw_device->listen(); |
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}
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