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Diffstat (limited to 'src/serialport/serialportinfo_win.cpp')
| -rw-r--r-- | src/serialport/serialportinfo_win.cpp | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/src/serialport/serialportinfo_win.cpp b/src/serialport/serialportinfo_win.cpp new file mode 100644 index 0000000..a0e4c73 --- /dev/null +++ b/src/serialport/serialportinfo_win.cpp @@ -0,0 +1,222 @@ +/**************************************************************************** +** +** Copyright (C) 2011-2012 Denis Shienkov <scapig2@yandex.ru> +** Copyright (C) 2011 Sergey Belyashov <Sergey.Belyashov@gmail.com> +** Copyright (C) 2012 Laszlo Papp <lpapp@kde.org> +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtSerialPort module 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 "serialportinfo.h" +#include "serialportinfo_p.h" +#include "serialport_win_p.h" + +#include <qt_windows.h> + +#ifndef Q_OS_WINCE +#include <initguid.h> +#include <setupapi.h> +#endif + +#include <QtCore/qvariant.h> +#include <QtCore/qstringlist.h> + +QT_BEGIN_NAMESPACE_SERIALPORT + +#ifndef Q_OS_WINCE + +static const GUID guidsArray[] = +{ + // Windows Ports Class GUID + { 0x4D36E978, 0xE325, 0x11CE, { 0xBF, 0xC1, 0x08, 0x00, 0x2B, 0xE1, 0x03, 0x18 } }, + // Virtual Ports Class GUID (i.e. com0com and etc) + { 0xDF799E12, 0x3C56, 0x421B, { 0xB2, 0x98, 0xB6, 0xD3, 0x64, 0x2B, 0xC8, 0x78 } }, + // Windows Modems Class GUID + { 0x4D36E96D, 0xE325, 0x11CE, { 0xBF, 0xC1, 0x08, 0x00, 0x2B, 0xE1, 0x03, 0x18 } }, + // Eltima Virtual Serial Port Driver v4 GUID + { 0xCC0EF009, 0xB820, 0x42F4, { 0x95, 0xA9, 0x9B, 0xFA, 0x6A, 0x5A, 0xB7, 0xAB } }, + // Advanced Virtual COM Port GUID + { 0x9341CD95, 0x4371, 0x4A37, { 0xA5, 0xAF, 0xFD, 0xB0, 0xA9, 0xD1, 0x96, 0x31 } }, +}; + +static const wchar_t portKeyName[] = L"PortName"; + +static QVariant deviceRegistryProperty(HDEVINFO deviceInfoSet, + PSP_DEVINFO_DATA deviceInfoData, + DWORD property) +{ + DWORD dataType = 0; + DWORD dataSize = 0; + ::SetupDiGetDeviceRegistryProperty(deviceInfoSet, deviceInfoData, + property, &dataType, NULL, 0, &dataSize); + QByteArray data(dataSize, 0); + if (!::SetupDiGetDeviceRegistryProperty(deviceInfoSet, deviceInfoData, property, NULL, + reinterpret_cast<unsigned char*>(data.data()), + dataSize, NULL) + || !dataSize) { + return QVariant(); + } + + switch (dataType) { + + case REG_EXPAND_SZ: + case REG_SZ: { + return QVariant(QString::fromWCharArray(reinterpret_cast<const wchar_t *>(data.constData()))); + } + + case REG_MULTI_SZ: { + QStringList list; + int i = 0; + forever { + QString s = QString::fromWCharArray(reinterpret_cast<const wchar_t *>(data.constData()) + i); + i += s.length() + 1; + if (s.isEmpty()) + break; + list.append(s); + } + return QVariant(list); + } + + default: + break; + } + + return QVariant(); +} + +static QString devicePortName(HDEVINFO deviceInfoSet, PSP_DEVINFO_DATA deviceInfoData) +{ + const HKEY key = ::SetupDiOpenDevRegKey(deviceInfoSet, deviceInfoData, DICS_FLAG_GLOBAL, + 0, DIREG_DEV, KEY_READ); + if (key == INVALID_HANDLE_VALUE) + return QString(); + + DWORD dataSize; + if (::RegQueryValueEx(key, portKeyName, NULL, NULL, NULL, &dataSize) != ERROR_SUCCESS) { + ::RegCloseKey(key); + return QString(); + } + + QByteArray data(dataSize, 0); + + if (::RegQueryValueEx(key, portKeyName, NULL, NULL, + reinterpret_cast<unsigned char *>(data.data()), &dataSize) != ERROR_SUCCESS) { + ::RegCloseKey(key); + return QString(); + } + ::RegCloseKey(key); + return QString::fromWCharArray(((const wchar_t *)data.constData())); +} + +QList<SerialPortInfo> SerialPortInfo::availablePorts() +{ + QList<SerialPortInfo> ports; + static const int guidCount = sizeof(guidsArray)/sizeof(guidsArray[0]); + + for (int i = 0; i < guidCount; ++i) { + const HDEVINFO deviceInfoSet = ::SetupDiGetClassDevs(&guidsArray[i], NULL, 0, DIGCF_PRESENT); + if (deviceInfoSet == INVALID_HANDLE_VALUE) + return ports; + + SP_DEVINFO_DATA deviceInfoData; + ::memset(&deviceInfoData, 0, sizeof(deviceInfoData)); + deviceInfoData.cbSize = sizeof(deviceInfoData); + + DWORD index = 0; + while (::SetupDiEnumDeviceInfo(deviceInfoSet, index++, &deviceInfoData)) { + SerialPortInfo info; + + QString s = devicePortName(deviceInfoSet, &deviceInfoData); + if (s.isEmpty() || s.contains(QLatin1String("LPT"))) + continue; + + info.d_ptr->portName = s; + info.d_ptr->device = SerialPortPrivate::portNameToSystemLocation(s); + info.d_ptr->description = + deviceRegistryProperty(deviceInfoSet, &deviceInfoData, SPDRP_DEVICEDESC).toString(); + info.d_ptr->manufacturer = + deviceRegistryProperty(deviceInfoSet, &deviceInfoData, SPDRP_MFG).toString(); + + s = deviceRegistryProperty(deviceInfoSet, &deviceInfoData, SPDRP_HARDWAREID).toStringList().at(0).toUpper(); + info.d_ptr->vendorIdentifier = s.mid(s.indexOf(QLatin1String("VID_")) + 4, 4); + info.d_ptr->productIdentifier = s.mid(s.indexOf(QLatin1String("PID_")) + 4, 4); + + ports.append(info); + } + ::SetupDiDestroyDeviceInfoList(deviceInfoSet); + } + return ports; +} + +#endif + +// common part + +QList<qint32> SerialPortInfo::standardRates() +{ + return SerialPortPrivate::standardRates(); +} + +bool SerialPortInfo::isBusy() const +{ + const HANDLE descriptor = ::CreateFile(reinterpret_cast<const wchar_t*>(systemLocation().utf16()), + GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL); + + if (descriptor == INVALID_HANDLE_VALUE) { + if (::GetLastError() == ERROR_ACCESS_DENIED) + return true; + } else { + ::CloseHandle(descriptor); + } + return false; +} + +bool SerialPortInfo::isValid() const +{ + const HANDLE descriptor = ::CreateFile(reinterpret_cast<const wchar_t*>(systemLocation().utf16()), + GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL); + + if (descriptor == INVALID_HANDLE_VALUE) { + if (::GetLastError() != ERROR_ACCESS_DENIED) + return false; + } else { + ::CloseHandle(descriptor); + } + return true; +} + +QT_END_NAMESPACE_SERIALPORT |