diff options
Diffstat (limited to 'src/serialport/qserialport_unix.cpp')
| -rw-r--r-- | src/serialport/qserialport_unix.cpp | 57 |
1 files changed, 56 insertions, 1 deletions
diff --git a/src/serialport/qserialport_unix.cpp b/src/serialport/qserialport_unix.cpp index b845de7..9b560be 100644 --- a/src/serialport/qserialport_unix.cpp +++ b/src/serialport/qserialport_unix.cpp @@ -52,6 +52,33 @@ #define CRTSCTS (IHFLOW | OHFLOW) #endif +#ifdef Q_OS_LINUX + +struct termios2 { + tcflag_t c_iflag; /* input mode flags */ + tcflag_t c_oflag; /* output mode flags */ + tcflag_t c_cflag; /* control mode flags */ + tcflag_t c_lflag; /* local mode flags */ + cc_t c_line; /* line discipline */ + cc_t c_cc[19]; /* control characters */ + speed_t c_ispeed; /* input speed */ + speed_t c_ospeed; /* output speed */ +}; + +#ifndef TCGETS2 +#define TCGETS2 _IOR('T', 0x2A, struct termios2) +#endif + +#ifndef TCSETS2 +#define TCSETS2 _IOW('T', 0x2B, struct termios2) +#endif + +#ifndef BOTHER +#define BOTHER 0010000 +#endif + +#endif + #include <private/qcore_unix_p.h> #include <QtCore/qelapsedtimer.h> @@ -412,7 +439,17 @@ bool QSerialPortPrivate::setBaudRate() bool QSerialPortPrivate::setStandardBaudRate(qint32 baudRate, QSerialPort::Directions directions) { #ifdef Q_OS_LINUX - // try to clear custom baud rate + // try to clear custom baud rate, using termios v2 + struct termios2 tio2; + if (::ioctl(descriptor, TCGETS2, &tio2) != -1) { + if (tio2.c_cflag & BOTHER) { + tio2.c_cflag &= ~BOTHER; + tio2.c_cflag |= CBAUD; + ::ioctl(descriptor, TCSETS2, &tio2); + } + } + + // try to clear custom baud rate, using serial_struct (old way) struct serial_struct serial; ::memset(&serial, 0, sizeof(serial)); if (::ioctl(descriptor, TIOCGSERIAL, &serial) != -1) { @@ -446,6 +483,24 @@ bool QSerialPortPrivate::setStandardBaudRate(qint32 baudRate, QSerialPort::Direc bool QSerialPortPrivate::setCustomBaudRate(qint32 baudRate, QSerialPort::Directions directions) { + struct termios2 tio2; + + if (::ioctl(descriptor, TCGETS2, &tio2) != -1) { + tio2.c_cflag &= ~CBAUD; + tio2.c_cflag |= BOTHER; + + if (directions & QSerialPort::Input) + tio2.c_ispeed = baudRate; + + if (directions & QSerialPort::Output) + tio2.c_ospeed = baudRate; + + if (::ioctl(descriptor, TCSETS2, &tio2) != -1 + && ::ioctl(descriptor, TCGETS2, &tio2) != -1) { + return true; + } + } + struct serial_struct serial; if (::ioctl(descriptor, TIOCGSERIAL, &serial) == -1) { |