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/*
License...
*/
#include "serialportinfo.h"
#include "serialportinfo_p.h"
#include "ttylocker_unix_p.h"
#include "serialportengine_unix_p.h"
#include <sys/types.h>
#include <signal.h>
#include <unistd.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#if defined (Q_OS_LINUX)
# include <linux/serial.h>
#endif
#if defined (Q_OS_LINUX) && defined (HAVE_LIBUDEV)
extern "C"
{
# include <libudev.h>
}
#else
# include <QtCore/qdir.h>
#endif
#include <QtCore/qstringlist.h>
#include <QtCore/qregexp.h>
#include <QtCore/qfile.h>
#if defined (Q_OS_LINUX) && defined (HAVE_LIBUDEV)
// For detail enumerate - skipping, filters is not used.
// Instead of filters used libudev.
#else
// For simple enumerate.
static QStringList generateFiltersOfDevices()
{
QStringList l;
# if defined (Q_OS_LINUX)
l << QLatin1String("ttyS*") // Standart UART 8250 and etc.
<< QLatin1String("ttyUSB*") // Usb/serial converters PL2303 and etc.
<< QLatin1String("ttyACM*") // CDC_ACM converters (i.e. Mobile Phones).
<< QLatin1String("ttyMI*") // MOXA pci/serial converters.
<< QLatin1String("rfcomm*"); // Bluetooth serial device.
# elif defined (Q_OS_FREEBSD)
l << QLatin1String("cu*");
# else
// Here for other *nix OS.
# endif
return l;
}
// Only for a simple enumeration by the mask of all available
// devices in /dev directory. Used in the following cases:
// - for Gnu/Linux without libudev
// - for any other *nix, bsd (exception Mac OSX)
inline QStringList& filtersOfDevices()
{
static QStringList l = generateFiltersOfDevices();
return l;
}
#endif
QT_BEGIN_NAMESPACE_SERIALPORT
/* Public methods */
QList<SerialPortInfo> SerialPortInfo::availablePorts()
{
QList<SerialPortInfo> ports;
#if defined (Q_OS_LINUX) && defined (HAVE_LIBUDEV)
// Detailed enumerate devices for Gnu/Linux with use libudev.
struct ::udev *udev = ::udev_new();
if (udev) {
struct ::udev_enumerate *enumerate =
::udev_enumerate_new(udev);
if (enumerate) {
::udev_enumerate_add_match_subsystem(enumerate, "tty");
::udev_enumerate_scan_devices(enumerate);
struct ::udev_list_entry *devices =
::udev_enumerate_get_list_entry(enumerate);
struct ::udev_list_entry *dev_list_entry;
udev_list_entry_foreach(dev_list_entry, devices) {
struct ::udev_device *dev =
::udev_device_new_from_syspath(udev,
::udev_list_entry_get_name(dev_list_entry));
if (dev) {
SerialPortInfo info;
info.d_ptr->device =
QString::fromLatin1(::udev_device_get_devnode(dev));
info.d_ptr->portName =
QString::fromLatin1(::udev_device_get_sysname(dev));
struct ::udev_device *parentdev = ::udev_device_get_parent(dev);
if (parentdev) {
QString subsys(QLatin1String(::udev_device_get_subsystem(parentdev)));
bool do_append = true;
if (subsys.contains(QLatin1String("usb"))) {
info.d_ptr->description =
QString::fromLatin1(::udev_device_get_property_value(dev,
"ID_MODEL_FROM_DATABASE"));
info.d_ptr->manufacturer =
QString::fromLatin1(::udev_device_get_property_value(dev,
"ID_VENDOR_FROM_DATABASE"));
info.d_ptr->vendorIdentifier =
QString::fromLatin1(::udev_device_get_property_value(dev,
"ID_VENDOR_ID"));
info.d_ptr->productIdentifier =
QString::fromLatin1(::udev_device_get_property_value(dev,
"ID_MODEL_ID"));
} else if (subsys.contains(QLatin1String("pnp"))) {
// FIXME: How can I get a additional info about standard serial devices?
} else {
// Others subsystems.
// Skip, while don't use.
do_append = false;
}
if (do_append)
ports.append(info);
}
::udev_device_unref(dev);
}
}
::udev_enumerate_unref(enumerate);
}
::udev_unref(udev);
}
#elif defined (Q_OS_FREEBSD) && defined (HAVE_LIBUSB)
// TODO: Implement me.
//
#else
// Simple enumerate devices for other *nix OS in device directory /dev.
QDir devDir(QLatin1String("/dev"));
if (devDir.exists()) {
devDir.setNameFilters(filtersOfDevices());
devDir.setFilter(QDir::Files | QDir::System);
QStringList foundDevices; // Found devices list.
foreach (const QFileInfo &fi, devDir.entryInfoList()) {
if (!fi.isDir()) {
QString s = fi.absoluteFilePath().split('.').at(0);
if (!foundDevices.contains(s)) {
foundDevices.append(s);
SerialPortInfo info;
info.d_ptr->device = s;
info.d_ptr->portName = s.remove(QRegExp(QLatin1String("/[\\w|\\d|\\s]+/")));
// Get description, manufacturer, vendor identifier, product
// identifier are not supported.
ports.append(info);
}
}
}
}
#endif
return ports;
}
QList<qint32> SerialPortInfo::standardRates()
{
return UnixSerialPortEngine::standardRates();
}
bool SerialPortInfo::isBusy() const
{
bool currentPid = false;
bool ret = TTYLocker::isLocked(systemLocation(), ¤tPid);
return ret;
}
bool SerialPortInfo::isValid() const
{
QFile f(systemLocation());
return f.exists();
}
QT_END_NAMESPACE_SERIALPORT
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