diff options
| -rw-r--r-- | src/platformsupport/devicediscovery/qdevicediscovery_static.cpp | 86 |
1 files changed, 75 insertions, 11 deletions
diff --git a/src/platformsupport/devicediscovery/qdevicediscovery_static.cpp b/src/platformsupport/devicediscovery/qdevicediscovery_static.cpp index 918ab8799a..bfb48d4275 100644 --- a/src/platformsupport/devicediscovery/qdevicediscovery_static.cpp +++ b/src/platformsupport/devicediscovery/qdevicediscovery_static.cpp @@ -46,6 +46,10 @@ #include <QObject> #include <QHash> #include <QDir> +#include <QtCore/private/qcore_unix_p.h> + +#include <linux/input.h> +#include <fcntl.h> //#define QT_QPA_DEVICE_DISCOVERY_DEBUG @@ -53,6 +57,14 @@ #include <QtDebug> #endif +#define LONG_BITS (sizeof(int) * 8 ) +#define LONG_FIELD_SIZE(bits) ((bits / LONG_BITS) + 1) + +static bool testBit(long bit, const long *field) +{ + return (field[bit / LONG_BITS] >> bit % LONG_BITS) & 1; +} + QT_BEGIN_NAMESPACE QDeviceDiscovery *QDeviceDiscovery::create(QDeviceTypes types, QObject *parent) @@ -65,7 +77,7 @@ QDeviceDiscovery::QDeviceDiscovery(QDeviceTypes types, QObject *parent) : m_types(types) { #ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG - qWarning() << "New static DeviceDiscovery created for type" << types; + qWarning() << "New DeviceDiscovery created for type" << types; #endif } @@ -82,19 +94,21 @@ QStringList QDeviceDiscovery::scanConnectedDevices() dir.setFilter(QDir::System); foreach (const QString &deviceFile, dir.entryList()) { - if (checkDeviceType(deviceFile)) - devices << (dir.absolutePath() + QString::fromLatin1("/") + deviceFile); + QString absoluteFilePath = dir.absolutePath() + QString::fromLatin1("/") + deviceFile; + if (checkDeviceType(absoluteFilePath)) + devices << absoluteFilePath; } // check for drm devices dir.setPath(QString::fromLatin1(QT_DRM_DEVICE_PATH)); foreach (const QString &deviceFile, dir.entryList()) { - if (checkDeviceType(deviceFile)) - devices << (dir.absolutePath() + QString::fromLatin1("/") + deviceFile); + QString absoluteFilePath = dir.absolutePath() + QString::fromLatin1("/") + deviceFile; + if (checkDeviceType(absoluteFilePath)) + devices << absoluteFilePath; } #ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG - qWarning() << "Static DeviceDiscovery found matching devices" << devices; + qWarning() << "DeviceDiscovery found matching devices" << devices; #endif return devices; @@ -102,13 +116,63 @@ QStringList QDeviceDiscovery::scanConnectedDevices() bool QDeviceDiscovery::checkDeviceType(const QString &device) { - if ((m_types & (Device_Keyboard | Device_Mouse | Device_Touchpad | Device_Touchscreen)) && device.startsWith(QString::fromLatin1(QT_EVDEV_DEVICE_PREFIX))) - return true; + bool ret = false; + int fd = QT_OPEN(device.toLocal8Bit().constData(), O_RDONLY | O_NDELAY, 0); + if (!fd) { +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG + qWarning() << "DeviceDiscovery cannot open device" << device; +#endif + return false; + } + + long bitsKey[LONG_FIELD_SIZE(KEY_CNT)]; + if (ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(bitsKey)), bitsKey) >= 0 ) { + if (!ret && (m_types & Device_Keyboard)) { + if (testBit(KEY_Q, bitsKey)) { +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG + qWarning() << "DeviceDiscovery found keyboard at" << device; +#endif + ret = true; + } + } + + if (!ret && (m_types & Device_Mouse)) { + long bitsRel[LONG_FIELD_SIZE(REL_CNT)]; + if (ioctl(fd, EVIOCGBIT(EV_REL, sizeof(bitsRel)), bitsRel) >= 0 ) { + if (testBit(REL_X, bitsRel) && testBit(REL_Y, bitsRel) && testBit(BTN_MOUSE, bitsKey)) { +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG + qWarning() << "DeviceDiscovery found mouse at" << device; +#endif + ret = true; + } + } + } + + if (!ret && (m_types & (Device_Touchpad | Device_Touchscreen))) { + long bitsAbs[LONG_FIELD_SIZE(ABS_CNT)]; + if (ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(bitsAbs)), bitsAbs) >= 0 ) { + if (testBit(ABS_X, bitsAbs) && testBit(ABS_Y, bitsAbs)) { + if ((m_types & Device_Touchpad) && testBit(BTN_TOOL_FINGER, bitsKey)) { +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG + qWarning() << "DeviceDiscovery found touchpad at" << device; +#endif + ret = true; + } else if ((m_types & Device_Touchscreen) && testBit(BTN_TOUCH, bitsKey)) { +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG + qWarning() << "DeviceDiscovery found touchscreen at" << device; +#endif + ret = true; + } + } + } + } + } - if ((m_types & Device_DRM) && device.startsWith(QString::fromLatin1(QT_DRM_DEVICE_PREFIX))) - return true; + if (!ret && (m_types & Device_DRM) && device.contains(QString::fromLatin1(QT_DRM_DEVICE_PREFIX))) + ret = true; - return false; + QT_CLOSE(fd); + return ret; } QT_END_NAMESPACE |