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261 lines
10 KiB
261 lines
10 KiB
/**************************************************************************** |
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** |
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** Copyright (C) 2011-2012 Denis Shienkov <denis.shienkov@gmail.com> |
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** Copyright (C) 2011 Sergey Belyashov <Sergey.Belyashov@gmail.com> |
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** Copyright (C) 2012 Laszlo Papp <lpapp@kde.org> |
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** Contact: http://www.qt-project.org/legal |
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** |
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** This file is part of the QtSerialPort module of the Qt Toolkit. |
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** |
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** $QT_BEGIN_LICENSE:LGPL$ |
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** Commercial License Usage |
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** Licensees holding valid commercial Qt licenses may use this file in |
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** accordance with the commercial license agreement provided with the |
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** Software or, alternatively, in accordance with the terms contained in |
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** a written agreement between you and Digia. For licensing terms and |
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** conditions see http://qt.digia.com/licensing. For further information |
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** use the contact form at http://qt.digia.com/contact-us. |
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** |
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** GNU Lesser General Public License Usage |
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** Alternatively, this file may be used under the terms of the GNU Lesser |
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** General Public License version 2.1 as published by the Free Software |
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** Foundation and appearing in the file LICENSE.LGPL included in the |
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** packaging of this file. Please review the following information to |
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** ensure the GNU Lesser General Public License version 2.1 requirements |
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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** |
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** In addition, as a special exception, Digia gives you certain additional |
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** rights. These rights are described in the Digia Qt LGPL Exception |
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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** |
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** GNU General Public License Usage |
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** Alternatively, this file may be used under the terms of the GNU |
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** General Public License version 3.0 as published by the Free Software |
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** Foundation and appearing in the file LICENSE.GPL included in the |
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** packaging of this file. Please review the following information to |
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** ensure the GNU General Public License version 3.0 requirements will be |
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** met: http://www.gnu.org/copyleft/gpl.html. |
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** |
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** |
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** $QT_END_LICENSE$ |
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** |
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****************************************************************************/ |
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#include "qserialportinfo.h" |
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#include "qserialportinfo_p.h" |
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#include "qttylocker_unix_p.h" |
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#include "qserialport_unix_p.h" |
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#include <QtCore/qfile.h> |
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#ifndef Q_OS_MAC |
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#if defined (Q_OS_LINUX) && defined (HAVE_LIBUDEV) |
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extern "C" |
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{ |
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#include <libudev.h> |
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} |
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#else |
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#include <QtCore/qdir.h> |
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#include <QtCore/qstringlist.h> |
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#endif |
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#endif // Q_OS_MAC |
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QT_BEGIN_NAMESPACE |
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#ifndef Q_OS_MAC |
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#if !(defined (Q_OS_LINUX) && defined (HAVE_LIBUDEV)) |
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static inline const QStringList& filtersOfDevices() |
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{ |
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static const QStringList deviceFileNameFilterList = QStringList() |
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# ifdef Q_OS_LINUX |
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<< QLatin1String("ttyS*") // Standart UART 8250 and etc. |
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<< QLatin1String("ttyUSB*") // Usb/serial converters PL2303 and etc. |
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<< QLatin1String("ttyACM*") // CDC_ACM converters (i.e. Mobile Phones). |
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<< QLatin1String("ttyGS*") // Gadget serial device (i.e. Mobile Phones with gadget serial driver). |
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<< QLatin1String("ttyMI*") // MOXA pci/serial converters. |
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<< QLatin1String("ttyAMA*") // AMBA serial device for embedded platform on ARM (i.e. Raspberry Pi). |
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<< QLatin1String("rfcomm*") // Bluetooth serial device. |
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<< QLatin1String("ircomm*"); // IrDA serial device. |
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# elif defined (Q_OS_FREEBSD) |
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<< QLatin1String("cu*"); |
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# else |
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; // Here for other *nix OS. |
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# endif |
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return deviceFileNameFilterList; |
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} |
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#endif |
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QList<QSerialPortInfo> QSerialPortInfo::availablePorts() |
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{ |
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QList<QSerialPortInfo> serialPortInfoList; |
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#if defined (Q_OS_LINUX) && defined (HAVE_LIBUDEV) |
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// White list for devices without a parent |
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static const QString rfcommDeviceName(QLatin1String("rfcomm")); |
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struct ::udev *udev = ::udev_new(); |
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if (udev) { |
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struct ::udev_enumerate *enumerate = |
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::udev_enumerate_new(udev); |
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if (enumerate) { |
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::udev_enumerate_add_match_subsystem(enumerate, "tty"); |
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::udev_enumerate_scan_devices(enumerate); |
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struct ::udev_list_entry *devices = |
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::udev_enumerate_get_list_entry(enumerate); |
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struct ::udev_list_entry *dev_list_entry; |
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udev_list_entry_foreach(dev_list_entry, devices) { |
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struct ::udev_device *dev = |
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::udev_device_new_from_syspath(udev, |
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::udev_list_entry_get_name(dev_list_entry)); |
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if (dev) { |
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QSerialPortInfo serialPortInfo; |
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serialPortInfo.d_ptr->device = |
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QLatin1String(::udev_device_get_devnode(dev)); |
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serialPortInfo.d_ptr->portName = |
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QLatin1String(::udev_device_get_sysname(dev)); |
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struct ::udev_device *parentdev = ::udev_device_get_parent(dev); |
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bool canAppendToList = true; |
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if (parentdev) { |
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QLatin1String subsys(::udev_device_get_subsystem(parentdev)); |
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if (subsys == QLatin1String("usb-serial") |
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|| subsys == QLatin1String("usb")) { // USB bus type |
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// Append this devices and try get additional information about them. |
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serialPortInfo.d_ptr->description = QString( |
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QLatin1String(::udev_device_get_property_value(dev, |
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"ID_MODEL"))).replace('_', ' '); |
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serialPortInfo.d_ptr->manufacturer = QString( |
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QLatin1String(::udev_device_get_property_value(dev, |
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"ID_VENDOR"))).replace('_', ' '); |
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serialPortInfo.d_ptr->vendorIdentifier = |
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QString::fromLatin1(::udev_device_get_property_value(dev, |
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"ID_VENDOR_ID")).toInt(&serialPortInfo.d_ptr->hasVendorIdentifier, 16); |
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serialPortInfo.d_ptr->productIdentifier = |
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QString::fromLatin1(::udev_device_get_property_value(dev, |
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"ID_MODEL_ID")).toInt(&serialPortInfo.d_ptr->hasProductIdentifier, 16); |
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} else if (subsys == QLatin1String("pnp")) { // PNP bus type |
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// Append this device. |
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// FIXME: How to get additional information about serial devices |
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// with this subsystem? |
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} else if (subsys == QLatin1String("platform")) { // Platform 'pseudo' bus for legacy device. |
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// Skip this devices because this type of subsystem does |
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// not include a real physical serial device. |
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canAppendToList = false; |
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} else { // Others types of subsystems. |
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// Append this devices because we believe that any other types of |
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// subsystems provide a real serial devices. For example, for devices |
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// such as ttyGSx, its driver provide an empty subsystem name, but it |
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// devices is a real physical serial devices. |
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// FIXME: How to get additional information about serial devices |
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// with this subsystems? |
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} |
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} else { // Devices without a parent |
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if (serialPortInfo.d_ptr->portName.startsWith(rfcommDeviceName)) { // Bluetooth device |
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bool ok; |
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// Check for an unsigned decimal integer at the end of the device name: "rfcomm0", "rfcomm15" |
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// devices with negative and invalid numbers in the name are rejected |
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int portNumber = serialPortInfo.d_ptr->portName.mid(rfcommDeviceName.length()).toInt(&ok); |
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if (!ok || (portNumber < 0) || (portNumber > 255)) { |
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canAppendToList = false; |
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} |
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} else { |
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canAppendToList = false; |
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} |
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} |
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if (canAppendToList) |
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serialPortInfoList.append(serialPortInfo); |
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::udev_device_unref(dev); |
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} |
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} |
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::udev_enumerate_unref(enumerate); |
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} |
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::udev_unref(udev); |
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} |
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#elif defined (Q_OS_FREEBSD) && defined (HAVE_LIBUSB) |
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// TODO: Implement me. |
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#else |
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QDir devDir(QLatin1String("/dev")); |
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if (devDir.exists()) { |
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devDir.setNameFilters(filtersOfDevices()); |
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devDir.setFilter(QDir::Files | QDir::System | QDir::NoSymLinks); |
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QStringList foundDevices; // Found devices list. |
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foreach (const QFileInfo &deviceFileInfo, devDir.entryInfoList()) { |
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QString deviceFilePath = deviceFileInfo.absoluteFilePath(); |
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if (!foundDevices.contains(deviceFilePath)) { |
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foundDevices.append(deviceFilePath); |
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QSerialPortInfo serialPortInfo; |
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serialPortInfo.d_ptr->device = deviceFilePath; |
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serialPortInfo.d_ptr->portName = QSerialPortPrivate::portNameFromSystemLocation(deviceFilePath); |
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// Get description, manufacturer, vendor identifier, product |
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// identifier are not supported. |
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serialPortInfoList.append(serialPortInfo); |
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} |
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} |
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} |
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#endif |
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return serialPortInfoList; |
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} |
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#endif // Q_OS_MAC |
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// common part |
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QList<qint32> QSerialPortInfo::standardBaudRates() |
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{ |
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return QSerialPortPrivate::standardBaudRates(); |
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} |
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bool QSerialPortInfo::isBusy() const |
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{ |
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bool currentPid = false; |
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return QTtyLocker::isLocked(portName().toLocal8Bit().constData(), ¤tPid); |
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} |
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bool QSerialPortInfo::isValid() const |
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{ |
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QFile f(systemLocation()); |
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return f.exists(); |
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} |
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QT_END_NAMESPACE
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