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/*
License...
*/
#include "serialportinfo.h"
#include "serialportinfo_p.h"
#include "ttylocker_p_unix.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/qvariant.h>
#include <QtCore/qstringlist.h>
#include <QtCore/qregexp.h>
#include <QtCore/qfile.h>
QT_USE_NAMESPACE
static QStringList nameFilters()
{
static QStringList list;
#if defined (Q_OS_LINUX)
list << "ttyS*" /* Standart UART 8250 and etc. */
<< "ttyUSB*" /* Usb/serial converters PL2303 and etc. */
<< "ttyACM*" /* CDC_ACM converters (i.e. Mobile Phones). */
<< "ttyMI*" /* MOXA pci/serial converters. */
<< "rfcomm*"; /* Bluetooth serial device. */
#elif defined (Q_OS_FREEBSD)
list << "cu*";
#else
// Here for other *nix OS.
#endif
return list;
}
/* Public methods */
QList<SerialPortInfo> SerialPortInfo::availablePorts()
{
QList<SerialPortInfo> ports;
#if defined (Q_OS_LINUX) && defined (HAVE_LIBUDEV)
// Detailed enumerate with use libudev scan.
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(udev_device_get_devnode(dev));
info.d_ptr->portName =
QString(udev_device_get_sysname(dev));
struct udev_device *parentdev = udev_device_get_parent(dev);
if (parentdev) {
QString subsys(udev_device_get_subsystem(parentdev));
bool do_append = true;
if (subsys.contains("usb")) {
info.d_ptr->description =
QString(udev_device_get_property_value(dev,
"ID_MODEL_FROM_DATABASE"));
info.d_ptr->manufacturer =
QString(udev_device_get_property_value(dev,
"ID_VENDOR_FROM_DATABASE"));
} else if (subsys == QString("pnp")) {
info.d_ptr->description =
QString("Standard serial port.");
info.d_ptr->manufacturer =
QString("Standard serial ports.");
} else {
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)
//
#else
// Simple enumerate with device directory /dev scan.
QDir devDir("/dev");
if (devDir.exists()) {
devDir.setNameFilters(nameFilters());
devDir.setFilter(QDir::Files | QDir::System);
QStringList foundDevices; //< Found devices hash.
foreach(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("/[\\w|\\d|\\s]+/"));
info.d_ptr->description = QString(QObject::tr("Unknown."));
info.d_ptr->manufacturer = QString(QObject::tr("Unknown."));
ports.append(info);
}
}
}
}
#endif
return ports;
}
static
const qint32 standardRates_begin[] =
{
50, 75, 110, 134, 150,
200, 300, 600, 1200, 1800,
2400, 4800, 9600, 19200, 38400,
57600, 115200, 230400, 460800,
500000, 576000, 921600, 1000000,
1152000, 1500000, 2000000, 2500000,
3000000, 3500000, 4000000
}, *standardRates_end = standardRates_begin + sizeof(::standardRates_begin)/sizeof(*::standardRates_begin);
QList<qint32> SerialPortInfo::standardRates() const
{
QList<qint32> rates;
rates.reserve(standardRates_end - standardRates_begin);
#if defined (Q_OS_LINUX) && defined (TIOCGSERIAL) && defined (TIOCSSERIAL)
int descriptor = ::open(systemLocation().toLocal8Bit().constData(),
O_NOCTTY | O_NDELAY | O_RDWR);
if (descriptor != -1) {
struct serial_struct ser_info;
// This call with may TIOCGSERIAL be not supported on some
// USB/Serial converters (for example, PL2303).
int result = ::ioctl(descriptor, TIOCGSERIAL, &ser_info);
::close(descriptor);
if ((result != -1) && (ser_info.baud_base > 0)) {
for (int i = 1, max = ser_info.baud_base / 50; i <= max; ++i) {
result = ser_info.baud_base / i;
//append to list only rates presented in array standardRates_begin
if ((qBinaryFind(standardRates_begin, standardRates_end, result) != standardRates_end) &&
!rates.contains(result))
rates.append(result);
}
}
}
#else
for (const qint32 *i = standardRates_begin; i != standardRates_end; ++i)
rates.append(*i);
#endif
qSort(rates);
return rates;
}
bool SerialPortInfo::isBusy() const
{
bool currPid = false;
bool ret = TTYLocker::isLocked(systemLocation(), &currPid);
return ret;
}
bool SerialPortInfo::isValid() const
{
QFile f(systemLocation());
return f.exists();
}
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