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/*
License...
*/
#include "serialportinfo.h"
#include "serialportinfo_p.h"
#include <qt_windows.h>
#include <objbase.h>
#include <initguid.h>
#include <setupapi.h>
#include <QtCore/QVariant>
#include <QtCore/QStringList>
static const ::GUID guidArray[] =
{
/* Windows Ports Class GUID */
{ 0x4D36E978, 0xE325, 0x11CE, { 0xBF, 0xC1, 0x08, 0x00, 0x2B, 0xE1, 0x03, 0x18 } },
/* Virtual Ports Class GUIG (i.e. com0com, nmea 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 } }
};
static QVariant getDeviceRegistryProperty(HDEVINFO deviceInfoSet,
PSP_DEVINFO_DATA deviceInfoData,
DWORD property)
{
DWORD dataType = 0;
DWORD dataSize = 0;
QVariant v;
::SetupDiGetDeviceRegistryProperty(deviceInfoSet,
deviceInfoData,
property,
&dataType,
0,
0,
&dataSize);
QByteArray data(dataSize, 0);
if (::SetupDiGetDeviceRegistryProperty(deviceInfoSet,
deviceInfoData,
property, 0,
reinterpret_cast<unsigned char*>(data.data()),
dataSize, 0)) {
switch (dataType) {
case REG_EXPAND_SZ:
case REG_SZ: {
QString s;
if (dataSize) {
s = QString::fromWCharArray(((const wchar_t *)data.constData()));
}
v = QVariant(s);
break;
}
case REG_MULTI_SZ: {
QStringList l;
if (dataSize) {
int i = 0;
for (;;) {
QString s = QString::fromWCharArray((const wchar_t *)data.constData() + i);
i += s.length() + 1;
if (s.isEmpty())
break;
l.append(s);
}
}
v = QVariant(l);
break;
}
case REG_NONE:
case REG_BINARY: {
QString s;
if (dataSize) {
s = QString::fromWCharArray((const wchar_t *)data.constData(), data.size() / 2);
}
v = QVariant(s);
break;
}
case REG_DWORD_BIG_ENDIAN:
case REG_DWORD: {
Q_ASSERT(data.size() == sizeof(int));
int i = 0;
::memcpy((void *)(&i), data.constData(), sizeof(int));
v = i;
break;
}
default:
v = QVariant();
}
}
return v;
}
static QString getNativeName(HDEVINFO deviceInfoSet,
PSP_DEVINFO_DATA deviceInfoData) {
HKEY key = ::SetupDiOpenDevRegKey(deviceInfoSet,
deviceInfoData,
DICS_FLAG_GLOBAL,
0,
DIREG_DEV,
KEY_READ);
QString result;
if (key == INVALID_HANDLE_VALUE)
return result;
DWORD i = 0;
QByteArray bufKeyName(16384, 0);
QByteArray bufKeyVal(16384, 0);
for (;;) {
DWORD lenKeyName = bufKeyName.size();
DWORD lenKeyValue = bufKeyVal.size();
DWORD keyType = 0;
LONG ret = ::RegEnumValue(key,
i++,
reinterpret_cast<wchar_t *>(bufKeyName.data()), &lenKeyName,
0,
&keyType,
reinterpret_cast<unsigned char *>(bufKeyVal.data()), &lenKeyValue);
if (ret == ERROR_SUCCESS) {
if (keyType == REG_SZ) {
QString itemName = QString::fromUtf16(reinterpret_cast<ushort *>(bufKeyName.data()), lenKeyName);
QString itemValue = QString::fromUtf16(((const ushort *)bufKeyVal.constData()));
if (itemName.contains("PortName")) {
result = itemValue;
break;
}
}
}
else
break;
}
::RegCloseKey(key);
return result;
}
QList<SerialPortInfo> SerialPortInfo::availablePorts()
{
QList<SerialPortInfo> ports;
static int guidCount = sizeof(guidArray)/sizeof(::GUID);
for (int i = 0; i < guidCount; ++i) {
HDEVINFO deviceInfoSet = ::SetupDiGetClassDevs(&guidArray[i], 0, 0, DIGCF_PRESENT);
if (deviceInfoSet == INVALID_HANDLE_VALUE)
return ports;
SP_DEVINFO_DATA deviceInfoData;
int size = sizeof(SP_DEVINFO_DATA);
::memset(&deviceInfoData, 0, size);
deviceInfoData.cbSize = size;
DWORD deviceIndex = 0;
while (::SetupDiEnumDeviceInfo(deviceInfoSet,
deviceIndex++,
&deviceInfoData)) {
SerialPortInfo info;
//get device name
QVariant v = getNativeName(deviceInfoSet, &deviceInfoData);
QString s = v.toString();
if (!(s.isEmpty() || s.contains("LPT"))) {
//name
info.d_ptr->portName = s;
//location
info.d_ptr->device = "\\\\.\\" + s;
//description
v = getDeviceRegistryProperty(deviceInfoSet, &deviceInfoData, SPDRP_DEVICEDESC);
info.d_ptr->description = v.toString();
//manufacturer
v = getDeviceRegistryProperty(deviceInfoSet, &deviceInfoData, SPDRP_MFG);
info.d_ptr->manufacturer = v.toString();
ports.append(info);
}
}
::SetupDiDestroyDeviceInfoList(deviceInfoSet);
}
return ports;
}
QList<int> SerialPortInfo::standardRates() const
{
QList<int> rates;
/*
Windows implementation detect supported rates list
or append standart Windows rates.
*/
return rates;
}
bool SerialPortInfo::isBusy() const
{
QString location = systemLocation();
QByteArray nativeFilePath = QByteArray((const char *)location.utf16(), location.size() * 2 + 1);
// Try open and close port by location: nativeFilePath
//...
//...
return false;
}
bool SerialPortInfo::isValid() const
{
// Impl me
return false;
}
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