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     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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    40 ****************************************************************************/

    41 

    42 #include "serenum.h"

    43 #include <QByteArray>

    44 #include <QString>

    45 #include <QDebug>

    46 #include <windows.h>

    47 #include <windef.h>

    48 #include <setupapi.h>

    49 #include <devguid.h>

    50 #include <winreg.h>

    51 #include <shlwapi.h>

    52 

    53 //{4d36e978-e325-11ce-bfc1-08002be10318}

    54 //DEFINE_GUID(GUID_DEVCLASS_PORTS, 0x4D36E978, 0xE325, 0x11CE, 0xBF, 0xC1, 0x08, 0x00, 0x2B, 0xE1, 0x03, 0x18 );

    55 

    56 QList<SerialPortId> enumerateSerialPorts()

    57 {

    58     DWORD index=0;

    59     SP_DEVINFO_DATA info;

    60     GUID guid = GUID_DEVCLASS_PORTS;

    61     HDEVINFO infoset = SetupDiGetClassDevs(&guid, 0, 0, DIGCF_PRESENT);

    62     QString valueName(16384, 0);

    63     QList<SerialPortId> list;

    64 

    65     for (index=0;;index++) {

    66         ZeroMemory(&info, sizeof(SP_DEVINFO_DATA));

    67         info.cbSize = sizeof(SP_DEVINFO_DATA);

    68         if (!SetupDiEnumDeviceInfo(infoset, index, &info))

    69             break;

    70         QString friendlyName;

    71         QString portName;

    72         DWORD size=0;

    73         SetupDiGetDeviceRegistryProperty(infoset, &info, SPDRP_FRIENDLYNAME, 0, 0, 0, &size);

    74         QByteArray ba(size, 0);

    75         if(SetupDiGetDeviceRegistryProperty(infoset, &info, SPDRP_FRIENDLYNAME, 0, (BYTE*)(ba.data()), size, 0)) {

    76             friendlyName = QString((const QChar*)(ba.constData()), ba.size() / 2 - 1);

    77         }

    78         HKEY key = SetupDiOpenDevRegKey(infoset, &info, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_READ);

    79         if(key != INVALID_HANDLE_VALUE) {

    80             //RegGetValue not supported on XP, SHRegGetValue not supported by mingw, so use the old method of enumerating all the values

    81             for (DWORD dwi=0;;dwi++) {

    82                 DWORD vsize = valueName.size();

    83                 if (ERROR_SUCCESS == RegEnumValue(key, dwi, (WCHAR*)(valueName.data()), &vsize, 0, 0, 0, &size)) {

    84                     if (valueName.startsWith("PortName")) {

    85                        QByteArray ba(size, 0);

    86                        vsize = valueName.size();

    87                        if(ERROR_SUCCESS == RegEnumValue(key, dwi, (WCHAR*)(valueName.data()), &vsize, 0, 0, (BYTE*)(ba.data()), &size)) {

    88                            portName = QString((const QChar*)(ba.constData()), ba.size() / 2 - 1);

    89                        }

    90                    }

    91                 } else {

    92                     break;

    93                 }

    94             }

    95             RegCloseKey(key);

    96         }

    97         SerialPortId id;

    98         id.portName = portName;

    99         id.friendlyName = friendlyName;

   100         list.append(id);

   101     }

   102     SetupDiDestroyDeviceInfoList(infoset);

   103     return list;

   104 }

   105