File indexing completed on 2024-04-21 16:11:00

 /*
  *   SPDX-FileCopyrightText: 2022 Bart Ribbers <bribbers@disroot.org>
  *   SPDX-FileCopyrightText: 2022 Aleix Pol Gonzalez <aleixpol@kde.org>
  *
  *   SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
  */
 
 #include "uinputsystem.h"
 
 #include <linux/uinput.h>
 #include <fcntl.h>
 #include <unistd.h>
 
 #include <QDebug>
 
 UInputSystem::UInputSystem()
 {
 }
 
 bool UInputSystem::init()
 {
     setSupportedKeys({});
     return m_fd > 0;
 }
 
 void UInputSystem::emitKey(int key, bool pressed)
 {
     if (!m_supportedKeys.contains(key)) {
         qWarning() << "reporting unannounced key" << key;
     }
     qWarning() << "key" << key << pressed;
     emitEvent(EV_KEY, key, pressed ? 1 : 0);
     emitEvent(EV_SYN, SYN_REPORT, 0);
 }
 
 void UInputSystem::emitEvent(int type, int code, int val)
 {
     struct input_event ie;
 
     ie.type = type;
     ie.code = code;
     ie.value = val;
     ie.input_event_sec = 0;
     ie.input_event_usec = 0;
 
     write(m_fd, &ie, sizeof(ie));
 }
 
 void UInputSystem::setSupportedKeys(const QSet<int>& keys)
 {
     if (m_fd > 0 && keys == m_supportedKeys) {
         return;
     }
     if (m_fd > 0) {
         close(m_fd);
     }
 
     m_supportedKeys = keys;
 
     struct uinput_setup usetup;
     m_fd = open("/dev/uinput", O_WRONLY | O_NONBLOCK);
 
     if (m_fd < 0) {
         qCritical() << "Couldn't open /dev/uinput, make sure the kernel module is loaded";
         return;
     }
 
     // Register all keys we want to press with this application
     ioctl(m_fd, UI_SET_EVBIT, EV_KEY);
 
     for ( auto x : std::as_const(m_supportedKeys))
         ioctl(m_fd, UI_SET_KEYBIT, x);
 
     memset(&usetup, 0, sizeof(usetup));
     usetup.id.bustype = BUS_USB;
     usetup.id.vendor = 0x1234; // TODO: change vendor
     usetup.id.product = 0x5678; // TODO: change product
     strcpy(usetup.name, "PlasmaRemoteControllers");
 
     ioctl(m_fd, UI_DEV_SETUP, &usetup);
     ioctl(m_fd, UI_DEV_CREATE);
 }