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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qdevicediscovery_vxworks_p.h"
#include <QStringList>
#include <QCoreApplication>
#include <QObject>
#include <QHash>
#include <QDir>
#include <QLoggingCategory>
#include <QtCore/private/qcore_unix_p.h>
#include <evdevLib.h>
#include <fcntl.h>
#define LONG_BITS (sizeof(long) * 8 )
#define LONG_FIELD_SIZE(bits) ((bits / LONG_BITS) + 1)
QT_BEGIN_NAMESPACE
using namespace Qt::StringLiterals;
Q_STATIC_LOGGING_CATEGORY(lcDD, "qt.qpa.input")
QDeviceDiscovery *QDeviceDiscovery::create(QDeviceTypes types, QObject *parent)
{
return new QDeviceDiscoveryVxWorks(types, parent);
}
QDeviceDiscoveryVxWorks::QDeviceDiscoveryVxWorks(QDeviceTypes types, QObject *parent)
: QDeviceDiscovery(types, parent)
{
qCDebug(lcDD) << "vxworks device discovery for type" << types;
}
QStringList QDeviceDiscoveryVxWorks::scanConnectedDevices()
{
QStringList devices;
// check for input devices
if (m_types & Device_InputMask) {
for (const auto &entry : QDirListing(QString::fromLatin1("/input/"))) {
QString absoluteFilePath = entry.absoluteFilePath();
if (checkDeviceType(absoluteFilePath))
devices << absoluteFilePath;
}
}
if (m_types & Device_VideoMask) {
devices << QString::fromLatin1("/dev/dri/card0");
}
return devices;
}
bool QDeviceDiscoveryVxWorks::checkDeviceType(const QString &device)
{
int fd = QT_OPEN(device.toLocal8Bit().constData(), O_RDONLY | O_NDELAY, 0);
if (Q_UNLIKELY(fd == -1)) {
// This is changed to debug type message due the nature of scanning
// and adding new device for VxWorks by getting dev count from
// dev /input/event0 which might be already in use
qCDebug(lcDD) << "Device discovery cannot open device" << device;
return false;
}
qCDebug(lcDD) << "doing static device discovery for " << device;
if ((m_types & Device_DRM) && device.contains(QT_DRM_DEVICE_PREFIX ""_L1)) {
QT_CLOSE(fd);
return true;
}
UINT32 devCap = 0;
if (ERROR != ioctl(fd, EV_DEV_IO_GET_CAP, (char *)&devCap)) {
if ((m_types & Device_Keyboard) && (devCap & EV_DEV_KEY)) {
if (!(devCap & EV_DEV_REL) && !(devCap & EV_DEV_ABS)) {
qCDebug(lcDD) << "DeviceDiscovery found keyboard at" << device;
QT_CLOSE(fd);
return true;
}
}
if (m_types & Device_Mouse) {
if ((devCap & EV_DEV_REL) && (devCap & EV_DEV_KEY) && !(devCap & EV_DEV_ABS)) {
qCDebug(lcDD) << "DeviceDiscovery found mouse at" << device;
QT_CLOSE(fd);
return true;
}
}
if ((m_types & (Device_Touchpad | Device_Touchscreen))) {
if ((m_types & Device_Touchscreen) && (devCap & EV_DEV_ABS && (devCap & EV_DEV_KEY))) {
qCDebug(lcDD) << "DeviceDiscovery found touchscreen at" << device;
QT_CLOSE(fd);
return true;
}
}
}
QT_CLOSE(fd);
return false;
}
QT_END_NAMESPACE
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