diff options
author | Johannes Zellner <johannes.zellner@nokia.com> | 2012-05-21 15:41:58 -0700 |
---|---|---|
committer | Qt by Nokia <qt-info@nokia.com> | 2012-05-24 07:15:02 +0200 |
commit | ce5c1db2d3db7d7c7af28e9053ca591f76c6101c (patch) | |
tree | 60ef0eac7ad658e9715f2a940dbf7c5a3b6787a4 /src/platformsupport | |
parent | 7dd64fd2bbb18a424577543307f2821ace963b8b (diff) |
udev: UDevHelper becomes DeviceDiscovery
Rename QUDeviceHelper to QDeviceDiscovery and add a static device
discovery fallback in case we dont have udev. The fallback so far only
scans /dev/input/event* and /dev/dri/card* at startup and detects device
nodes only by device path.
Change-Id: I7a423910b30ae16a10d8f1f47b86c6b4d2c2ec36
Reviewed-by: Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com>
Reviewed-by: Donald Carr <donald.carr@nokia.com>
Diffstat (limited to 'src/platformsupport')
-rw-r--r-- | src/platformsupport/devicediscovery/devicediscovery.pri | 12 | ||||
-rw-r--r-- | src/platformsupport/devicediscovery/qdevicediscovery_p.h (renamed from src/platformsupport/udev/qudevicehelper_p.h) | 67 | ||||
-rw-r--r-- | src/platformsupport/devicediscovery/qdevicediscovery_static.cpp | 114 | ||||
-rw-r--r-- | src/platformsupport/devicediscovery/qdevicediscovery_udev.cpp (renamed from src/platformsupport/udev/qudevicehelper.cpp) | 91 | ||||
-rw-r--r-- | src/platformsupport/platformsupport.pro | 2 | ||||
-rw-r--r-- | src/platformsupport/udev/udev.pri | 7 |
6 files changed, 215 insertions, 78 deletions
diff --git a/src/platformsupport/devicediscovery/devicediscovery.pri b/src/platformsupport/devicediscovery/devicediscovery.pri new file mode 100644 index 0000000000..900419888e --- /dev/null +++ b/src/platformsupport/devicediscovery/devicediscovery.pri @@ -0,0 +1,12 @@ +unix:!mac { + HEADERS += $$PWD/qdevicediscovery_p.h + + contains(QT_CONFIG, libudev) { + SOURCES += $$PWD/qdevicediscovery_udev.cpp + + INCLUDEPATH += $$QMAKE_INCDIR_LIBUDEV + LIBS += $$QMAKE_LIBS_LIBUDEV + } else { + SOURCES += $$PWD/qdevicediscovery_static.cpp + } +} diff --git a/src/platformsupport/udev/qudevicehelper_p.h b/src/platformsupport/devicediscovery/qdevicediscovery_p.h index 15dbe2926c..3bec6928bf 100644 --- a/src/platformsupport/udev/qudevicehelper_p.h +++ b/src/platformsupport/devicediscovery/qdevicediscovery_p.h @@ -39,63 +39,82 @@ ** ****************************************************************************/ -#ifndef QUDEVICEHELPER_H -#define QUDEVICEHELPER_H +#ifndef QDEVICEDISCOVERY_H +#define QDEVICEDISCOVERY_H #include <QObject> #include <QSocketNotifier> +#ifndef QT_NO_LIBUDEV #include <libudev.h> +#endif + +#define QT_EVDEV_DEVICE_PATH "/dev/input/" +#define QT_EVDEV_DEVICE_PREFIX "event" +#define QT_EVDEV_DEVICE QT_EVDEV_DEVICE_PATH QT_EVDEV_DEVICE_PREFIX + +#define QT_DRM_DEVICE_PATH "/dev/dri/" +#define QT_DRM_DEVICE_PREFIX "card" +#define QT_DRM_DEVICE QT_DRM_DEVICE_PATH QT_DRM_DEVICE_PREFIX QT_BEGIN_NAMESPACE -class QUDeviceHelper : public QObject +class QDeviceDiscovery : public QObject { Q_OBJECT - Q_ENUMS(QUDeviceType) + Q_ENUMS(QDeviceType) public: - enum QUDeviceType { - UDev_Unknown = 0x00, - UDev_Mouse = 0x01, - UDev_Touchpad = 0x02, - UDev_Touchscreen = 0x04, - UDev_Keyboard = 0x08, - UDev_DRM = 0x10, - UDev_InputMask = UDev_Mouse | UDev_Touchpad | UDev_Touchscreen | UDev_Keyboard, - UDev_VideoMask = UDev_DRM + enum QDeviceType { + Device_Unknown = 0x00, + Device_Mouse = 0x01, + Device_Touchpad = 0x02, + Device_Touchscreen = 0x04, + Device_Keyboard = 0x08, + Device_DRM = 0x10, + Device_InputMask = Device_Mouse | Device_Touchpad | Device_Touchscreen | Device_Keyboard, + Device_VideoMask = Device_DRM }; - Q_DECLARE_FLAGS(QUDeviceTypes, QUDeviceType) + Q_DECLARE_FLAGS(QDeviceTypes, QDeviceType) - static QUDeviceHelper *createUDeviceHelper(QUDeviceTypes type, QObject *parent); - ~QUDeviceHelper(); + static QDeviceDiscovery *create(QDeviceTypes type, QObject *parent); + ~QDeviceDiscovery(); QStringList scanConnectedDevices(); signals: - void deviceDetected(const QString &deviceNode, QUDeviceTypes types); - void deviceRemoved(const QString &deviceNode, QUDeviceTypes types); + void deviceDetected(const QString &deviceNode); + void deviceRemoved(const QString &deviceNode); +#ifndef QT_NO_LIBUDEV private slots: void handleUDevNotification(); +#endif private: - QUDeviceHelper(QUDeviceTypes types, struct udev *udev, QObject *parent = 0); +#ifndef QT_NO_LIBUDEV + QDeviceDiscovery(QDeviceTypes types, struct udev *udev, QObject *parent = 0); + bool checkDeviceType(struct udev_device *dev); +#else + QDeviceDiscovery(QDeviceTypes types, QObject *parent = 0); + bool checkDeviceType(const QString &device); +#endif + QDeviceTypes m_types; + +#ifndef QT_NO_LIBUDEV void startWatching(); void stopWatching(); - QUDeviceTypes checkDeviceType(struct udev_device *dev); - struct udev *m_udev; - QUDeviceTypes m_types; struct udev_monitor *m_udevMonitor; int m_udevMonitorFileDescriptor; QSocketNotifier *m_udevSocketNotifier; +#endif }; -Q_DECLARE_OPERATORS_FOR_FLAGS(QUDeviceHelper::QUDeviceTypes) +Q_DECLARE_OPERATORS_FOR_FLAGS(QDeviceDiscovery::QDeviceTypes) QT_END_NAMESPACE -#endif // QUDEVICEHELPER_H +#endif // QDEVICEDISCOVERY_H diff --git a/src/platformsupport/devicediscovery/qdevicediscovery_static.cpp b/src/platformsupport/devicediscovery/qdevicediscovery_static.cpp new file mode 100644 index 0000000000..918ab8799a --- /dev/null +++ b/src/platformsupport/devicediscovery/qdevicediscovery_static.cpp @@ -0,0 +1,114 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qdevicediscovery_p.h" + +#include <QStringList> +#include <QCoreApplication> +#include <QObject> +#include <QHash> +#include <QDir> + +//#define QT_QPA_DEVICE_DISCOVERY_DEBUG + +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG +#include <QtDebug> +#endif + +QT_BEGIN_NAMESPACE + +QDeviceDiscovery *QDeviceDiscovery::create(QDeviceTypes types, QObject *parent) +{ + return new QDeviceDiscovery(types, parent); +} + +QDeviceDiscovery::QDeviceDiscovery(QDeviceTypes types, QObject *parent) : + QObject(parent), + m_types(types) +{ +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG + qWarning() << "New static DeviceDiscovery created for type" << types; +#endif +} + +QDeviceDiscovery::~QDeviceDiscovery() +{ +} + +QStringList QDeviceDiscovery::scanConnectedDevices() +{ + QStringList devices; + + // check for input devices + QDir dir(QString::fromLatin1(QT_EVDEV_DEVICE_PATH)); + dir.setFilter(QDir::System); + + foreach (const QString &deviceFile, dir.entryList()) { + if (checkDeviceType(deviceFile)) + devices << (dir.absolutePath() + QString::fromLatin1("/") + deviceFile); + } + + // 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); + } + +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG + qWarning() << "Static DeviceDiscovery found matching devices" << devices; +#endif + + return devices; +} + +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; + + if ((m_types & Device_DRM) && device.startsWith(QString::fromLatin1(QT_DRM_DEVICE_PREFIX))) + return true; + + return false; +} + +QT_END_NAMESPACE diff --git a/src/platformsupport/udev/qudevicehelper.cpp b/src/platformsupport/devicediscovery/qdevicediscovery_udev.cpp index 0cf370badc..f7fe7cb87c 100644 --- a/src/platformsupport/udev/qudevicehelper.cpp +++ b/src/platformsupport/devicediscovery/qdevicediscovery_udev.cpp @@ -39,7 +39,7 @@ ** ****************************************************************************/ -#include "qudevicehelper_p.h" +#include "qdevicediscovery_p.h" #include <QStringList> #include <QCoreApplication> @@ -49,26 +49,26 @@ #include <linux/input.h> -//#define QT_QPA_UDEVICE_HELPER_DEBUG +//#define QT_QPA_DEVICE_DISCOVERY_DEBUG -#ifdef QT_QPA_UDEVICE_HELPER_DEBUG +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG #include <QtDebug> #endif QT_BEGIN_NAMESPACE -QUDeviceHelper *QUDeviceHelper::createUDeviceHelper(QUDeviceTypes types, QObject *parent) +QDeviceDiscovery *QDeviceDiscovery::create(QDeviceTypes types, QObject *parent) { -#ifdef QT_QPA_UDEVICE_HELPER_DEBUG +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG qWarning() << "Try to create new UDeviceHelper"; #endif - QUDeviceHelper *helper = 0; + QDeviceDiscovery *helper = 0; struct udev *udev; udev = udev_new(); if (udev) { - helper = new QUDeviceHelper(types, udev, parent); + helper = new QDeviceDiscovery(types, udev, parent); } else { qWarning("Failed to get udev library context."); } @@ -76,11 +76,11 @@ QUDeviceHelper *QUDeviceHelper::createUDeviceHelper(QUDeviceTypes types, QObject return helper; } -QUDeviceHelper::QUDeviceHelper(QUDeviceTypes types, struct udev *udev, QObject *parent) : +QDeviceDiscovery::QDeviceDiscovery(QDeviceTypes types, struct udev *udev, QObject *parent) : QObject(parent), - m_udev(udev), m_types(types), m_udevMonitor(0), m_udevMonitorFileDescriptor(-1), m_udevSocketNotifier(0) + m_types(types), m_udev(udev), m_udevMonitor(0), m_udevMonitorFileDescriptor(-1), m_udevSocketNotifier(0) { -#ifdef QT_QPA_UDEVICE_HELPER_DEBUG +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG qWarning() << "New UDeviceHelper created for type" << types; #endif @@ -89,7 +89,7 @@ QUDeviceHelper::QUDeviceHelper(QUDeviceTypes types, struct udev *udev, QObject * m_udevMonitor = udev_monitor_new_from_netlink(m_udev, "udev"); if (!m_udevMonitor) { -#ifdef QT_QPA_UDEVICE_HELPER_DEBUG +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG qWarning("Unable to create an Udev monitor. No devices can be detected."); #endif return; @@ -104,7 +104,7 @@ QUDeviceHelper::QUDeviceHelper(QUDeviceTypes types, struct udev *udev, QObject * connect(m_udevSocketNotifier, SIGNAL(activated(int)), this, SLOT(handleUDevNotification())); } -QUDeviceHelper::~QUDeviceHelper() +QDeviceDiscovery::~QDeviceDiscovery() { if (m_udevMonitor) udev_monitor_unref(m_udevMonitor); @@ -113,7 +113,7 @@ QUDeviceHelper::~QUDeviceHelper() udev_unref(m_udev); } -QStringList QUDeviceHelper::scanConnectedDevices() +QStringList QDeviceDiscovery::scanConnectedDevices() { QStringList devices; @@ -124,17 +124,17 @@ QStringList QUDeviceHelper::scanConnectedDevices() udev_enumerate_add_match_subsystem(ue, "input"); udev_enumerate_add_match_subsystem(ue, "drm"); - if (m_types & UDev_Mouse) + if (m_types & Device_Mouse) udev_enumerate_add_match_property(ue, "ID_INPUT_MOUSE", "1"); - if (m_types & UDev_Touchpad) + if (m_types & Device_Touchpad) udev_enumerate_add_match_property(ue, "ID_INPUT_TOUCHPAD", "1"); - if (m_types & UDev_Touchscreen) + if (m_types & Device_Touchscreen) udev_enumerate_add_match_property(ue, "ID_INPUT_TOUCHSCREEN", "1"); - if (m_types & UDev_Keyboard) + if (m_types & Device_Keyboard) udev_enumerate_add_match_property(ue, "ID_INPUT_KEYBOARD", "1"); if (udev_enumerate_scan_devices(ue) != 0) { -#ifdef QT_QPA_UDEVICE_HELPER_DEBUG +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG qWarning() << "UDeviceHelper scan connected devices for enumeration failed"; #endif return devices; @@ -145,30 +145,29 @@ QStringList QUDeviceHelper::scanConnectedDevices() const char *syspath = udev_list_entry_get_name(entry); udev_device *udevice = udev_device_new_from_syspath(m_udev, syspath); QString candidate = QString::fromUtf8(udev_device_get_devnode(udevice)); - if ((m_types & UDev_InputMask) && candidate.startsWith(QLatin1String("/dev/input/event"))) + if ((m_types & Device_InputMask) && candidate.startsWith(QLatin1String(QT_EVDEV_DEVICE))) devices << candidate; - if ((m_types & UDev_VideoMask) && candidate.startsWith(QLatin1String("/dev/dri/card"))) + if ((m_types & Device_VideoMask) && candidate.startsWith(QLatin1String(QT_DRM_DEVICE))) devices << candidate; udev_device_unref(udevice); } udev_enumerate_unref(ue); -#ifdef QT_QPA_UDEVICE_HELPER_DEBUG +#ifdef QT_QPA_DEVICE_DISCOVERY_DEBUG qWarning() << "UDeviceHelper found matching devices" << devices; #endif return devices; } -void QUDeviceHelper::handleUDevNotification() +void QDeviceDiscovery::handleUDevNotification() { if (!m_udevMonitor) return; struct udev_device *dev; QString devNode; - QUDeviceTypes types = QFlag(UDev_Unknown); dev = udev_monitor_receive_device(m_udevMonitor); if (!dev) @@ -186,39 +185,39 @@ void QUDeviceHelper::handleUDevNotification() const char *subsystem; devNode = QString::fromUtf8(str); - if (devNode.startsWith(QLatin1String("/dev/input/event"))) + if (devNode.startsWith(QLatin1String(QT_EVDEV_DEVICE))) subsystem = "input"; - else if (devNode.startsWith(QLatin1String("/dev/dri/card"))) + else if (devNode.startsWith(QLatin1String(QT_DRM_DEVICE))) subsystem = "drm"; else goto cleanup; - types = checkDeviceType(dev); - // if we cannot determine a type, walk up the device tree - if (types == UDev_Unknown) { + if (!checkDeviceType(dev)) { // does not increase the refcount dev = udev_device_get_parent_with_subsystem_devtype(dev, subsystem, 0); if (!dev) goto cleanup; - types = checkDeviceType(dev); + if (!checkDeviceType(dev)) + goto cleanup; } - if (types && (qstrcmp(action, "add") == 0)) - emit deviceDetected(devNode, types); + if (qstrcmp(action, "add") == 0) + emit deviceDetected(devNode); - if (types && (qstrcmp(action, "remove") == 0)) - emit deviceRemoved(devNode, types); + if (qstrcmp(action, "remove") == 0) + emit deviceRemoved(devNode); cleanup: udev_device_unref(dev); } -QUDeviceHelper::QUDeviceTypes QUDeviceHelper::checkDeviceType(udev_device *dev) +bool QDeviceDiscovery::checkDeviceType(udev_device *dev) { - QUDeviceTypes types = QFlag(UDev_Unknown); + if (!dev) + return false; - if ((m_types & UDev_Keyboard) && (qstrcmp(udev_device_get_property_value(dev, "ID_INPUT_KEYBOARD"), "1") == 0 )) { + if ((m_types & Device_Keyboard) && (qstrcmp(udev_device_get_property_value(dev, "ID_INPUT_KEYBOARD"), "1") == 0 )) { const char *capabilities_key = udev_device_get_sysattr_value(dev, "capabilities/key"); QStringList val = QString::fromUtf8(capabilities_key).split(QString::fromUtf8(" "), QString::SkipEmptyParts); if (!val.isEmpty()) { @@ -228,24 +227,24 @@ QUDeviceHelper::QUDeviceTypes QUDeviceHelper::checkDeviceType(udev_device *dev) // Tests if the letter Q is valid for the device. We may want to alter this test, but it seems mostly reliable. bool test = (keys >> KEY_Q) & 1; if (test) - types |= UDev_Keyboard; + return true; } } } - if ((m_types & UDev_Mouse) && (qstrcmp(udev_device_get_property_value(dev, "ID_INPUT_MOUSE"), "1") == 0)) - types |= UDev_Mouse; + if ((m_types & Device_Mouse) && (qstrcmp(udev_device_get_property_value(dev, "ID_INPUT_MOUSE"), "1") == 0)) + return true; - if ((m_types & UDev_Touchpad) && (qstrcmp(udev_device_get_property_value(dev, "ID_INPUT_TOUCHPAD"), "1") == 0)) - types |= UDev_Touchpad; + if ((m_types & Device_Touchpad) && (qstrcmp(udev_device_get_property_value(dev, "ID_INPUT_TOUCHPAD"), "1") == 0)) + return true; - if ((m_types & UDev_Touchscreen) && (qstrcmp(udev_device_get_property_value(dev, "ID_INPUT_TOUCHSCREEN"), "1") == 0)) - types |= UDev_Touchscreen; + if ((m_types & Device_Touchscreen) && (qstrcmp(udev_device_get_property_value(dev, "ID_INPUT_TOUCHSCREEN"), "1") == 0)) + return true; - if ((m_types & UDev_DRM) && (qstrcmp(udev_device_get_subsystem(dev), "drm") == 0)) - types |= UDev_DRM; + if ((m_types & Device_DRM) && (qstrcmp(udev_device_get_subsystem(dev), "drm") == 0)) + return true; - return types; + return false; } QT_END_NAMESPACE diff --git a/src/platformsupport/platformsupport.pro b/src/platformsupport/platformsupport.pro index 47618f02e3..d035dda166 100644 --- a/src/platformsupport/platformsupport.pro +++ b/src/platformsupport/platformsupport.pro @@ -33,6 +33,6 @@ include(fontdatabases/fontdatabases.pri) include(glxconvenience/glxconvenience.pri) #include(printersupport/printersupport.pri) include(inputcontext/inputcontext.pri) -include(udev/udev.pri) +include(devicediscovery/devicediscovery.pri) include(services/services.pri) include(themes/themes.pri) diff --git a/src/platformsupport/udev/udev.pri b/src/platformsupport/udev/udev.pri deleted file mode 100644 index e3d7f2dadc..0000000000 --- a/src/platformsupport/udev/udev.pri +++ /dev/null @@ -1,7 +0,0 @@ -contains(QT_CONFIG, libudev) { - HEADERS += $$PWD/qudevicehelper_p.h - SOURCES += $$PWD/qudevicehelper.cpp - - INCLUDEPATH += $$QMAKE_INCDIR_LIBUDEV - LIBS += $$QMAKE_LIBS_LIBUDEV -} |