📄 posix_qextserialport.cpp
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/*!
\class Posix_QextSerialPort
\version 1.0.0
\author Stefan Sander
A cross-platform serial port class.
This class encapsulates the POSIX portion of QextSerialPort. The user will be notified of errors
and possible portability conflicts at run-time by default - this behavior can be turned off by
defining _TTY_NOWARN_ (to turn off all warnings) or _TTY_NOWARN_PORT_ (to turn off portability
warnings) in the project. Note that _TTY_NOWARN_ will also turn off portability warnings.
*/
#include <stdio.h>
#include "posix_qextserialport.h"
/*!
\fn Posix_QextSerialPort::Posix_QextSerialPort()
Default constructor. Note that the name of the device used by a QextSerialPort constructed with
this constructor will be determined by #defined constants, or lack thereof - the default behavior
is the same as _TTY_LINUX_. Possible naming conventions and their associated constants are:
\verbatim
Constant Used By Naming Convention
---------- ------------- ------------------------
_TTY_WIN_ Windows COM1, COM2
_TTY_IRIX_ SGI/IRIX /dev/ttyf1, /dev/ttyf2
_TTY_HPUX_ HP-UX /dev/tty1p0, /dev/tty2p0
_TTY_SUN_ SunOS/Solaris /dev/ttya, /dev/ttyb
_TTY_DIGITAL_ Digital UNIX /dev/tty01, /dev/tty02
_TTY_FREEBSD_ FreeBSD /dev/ttyd0, /dev/ttyd1
_TTY_LINUX_ Linux /dev/ttyS0, /dev/ttyS1
<none> Linux /dev/ttyS0, /dev/ttyS1
\endverbatim
This constructor assigns the device name to the name of the first port on the specified system.
See the other constructors if you need to open a different port.
*/
Posix_QextSerialPort::Posix_QextSerialPort()
: QextSerialBase()
{
Posix_File=new QFile();
}
/*!
\fn Posix_QextSerialPort::Posix_QextSerialPort(const Posix_QextSerialPort&)
Copy constructor.
*/
Posix_QextSerialPort::Posix_QextSerialPort(const Posix_QextSerialPort& s)
: QextSerialBase(s.port)
{
setOpenMode(s.openMode());
port = s.port;
Settings.BaudRate=s.Settings.BaudRate;
Settings.DataBits=s.Settings.DataBits;
Settings.Parity=s.Settings.Parity;
Settings.StopBits=s.Settings.StopBits;
Settings.FlowControl=s.Settings.FlowControl;
lastErr=s.lastErr;
Posix_File=new QFile();
Posix_File=s.Posix_File;
memcpy(&Posix_Timeout, &s.Posix_Timeout, sizeof(struct timeval));
memcpy(&Posix_Copy_Timeout, &s.Posix_Copy_Timeout, sizeof(struct timeval));
memcpy(&Posix_CommConfig, &s.Posix_CommConfig, sizeof(struct termios));
}
/*!
\fn Posix_QextSerialPort::Posix_QextSerialPort(const QString & name)
Constructs a serial port attached to the port specified by name.
name is the name of the device, which is windowsystem-specific,
e.g."COM1" or "/dev/ttyS0".
*/
Posix_QextSerialPort::Posix_QextSerialPort(const QString & name)
: QextSerialBase(name)
{
Posix_File=new QFile();
}
/*!
\fn Posix_QextSerialPort::Posix_QextSerialPort(const PortSettings& settings)
Constructs a port with default name and specified settings.
*/
Posix_QextSerialPort::Posix_QextSerialPort(const PortSettings& settings)
: QextSerialBase()
{
setBaudRate(settings.BaudRate);
setDataBits(settings.DataBits);
setParity(settings.Parity);
setStopBits(settings.StopBits);
setFlowControl(settings.FlowControl);
Posix_File=new QFile();
setTimeout(settings.Timeout_Sec, settings.Timeout_Millisec);
}
/*!
\fn Posix_QextSerialPort::Posix_QextSerialPort(const QString & name, const PortSettings& settings)
Constructs a port with specified name and settings.
*/
Posix_QextSerialPort::Posix_QextSerialPort(const QString & name, const PortSettings& settings)
: QextSerialBase(name)
{
setBaudRate(settings.BaudRate);
setDataBits(settings.DataBits);
setParity(settings.Parity);
setStopBits(settings.StopBits);
setFlowControl(settings.FlowControl);
Posix_File=new QFile();
setTimeout(settings.Timeout_Sec, settings.Timeout_Millisec);
}
/*!
\fn Posix_QextSerialPort& Posix_QextSerialPort::operator=(const Posix_QextSerialPort& s)
Override the = operator.
*/
Posix_QextSerialPort& Posix_QextSerialPort::operator=(const Posix_QextSerialPort& s)
{
setOpenMode(s.openMode());
port = s.port;
Settings.BaudRate=s.Settings.BaudRate;
Settings.DataBits=s.Settings.DataBits;
Settings.Parity=s.Settings.Parity;
Settings.StopBits=s.Settings.StopBits;
Settings.FlowControl=s.Settings.FlowControl;
lastErr=s.lastErr;
Posix_File=s.Posix_File;
memcpy(&Posix_Timeout, &(s.Posix_Timeout), sizeof(struct timeval));
memcpy(&Posix_Copy_Timeout, &(s.Posix_Copy_Timeout), sizeof(struct timeval));
memcpy(&Posix_CommConfig, &(s.Posix_CommConfig), sizeof(struct termios));
return *this;
}
/*!
\fn Posix_QextSerialPort::~Posix_QextSerialPort()
Standard destructor.
*/
Posix_QextSerialPort::~Posix_QextSerialPort()
{
if (isOpen()) {
close();
}
Posix_File->close();
delete Posix_File;
}
/*!
\fn void Posix_QextSerialPort::setBaudRate(BaudRateType baudRate)
Sets the baud rate of the serial port. Note that not all rates are applicable on
all platforms. The following table shows translations of the various baud rate
constants on Windows(including NT/2000) and POSIX platforms. Speeds marked with an *
are speeds that are usable on both Windows and POSIX.
\note
BAUD76800 may not be supported on all POSIX systems. SGI/IRIX systems do not support
BAUD1800.
\verbatim
RATE Windows Speed POSIX Speed
----------- ------------- -----------
BAUD50 110 50
BAUD75 110 75
*BAUD110 110 110
BAUD134 110 134.5
BAUD150 110 150
BAUD200 110 200
*BAUD300 300 300
*BAUD600 600 600
*BAUD1200 1200 1200
BAUD1800 1200 1800
*BAUD2400 2400 2400
*BAUD4800 4800 4800
*BAUD9600 9600 9600
BAUD14400 14400 9600
*BAUD19200 19200 19200
*BAUD38400 38400 38400
BAUD56000 56000 38400
*BAUD57600 57600 57600
BAUD76800 57600 76800
*BAUD115200 115200 115200
BAUD128000 128000 115200
BAUD256000 256000 115200
\endverbatim
*/
void Posix_QextSerialPort::setBaudRate(BaudRateType baudRate)
{
LOCK_MUTEX();
if (Settings.BaudRate!=baudRate) {
switch (baudRate) {
case BAUD14400:
Settings.BaudRate=BAUD9600;
break;
case BAUD56000:
Settings.BaudRate=BAUD38400;
break;
case BAUD76800:
#ifndef B76800
Settings.BaudRate=BAUD57600;
#else
Settings.BaudRate=baudRate;
#endif
break;
case BAUD128000:
case BAUD256000:
Settings.BaudRate=BAUD115200;
break;
default:
Settings.BaudRate=baudRate;
break;
}
}
if (isOpen()) {
switch (baudRate) {
/*50 baud*/
case BAUD50:
TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 50 baud operation.");
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B50;
#else
cfsetispeed(&Posix_CommConfig, B50);
cfsetospeed(&Posix_CommConfig, B50);
#endif
break;
/*75 baud*/
case BAUD75:
TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 75 baud operation.");
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B75;
#else
cfsetispeed(&Posix_CommConfig, B75);
cfsetospeed(&Posix_CommConfig, B75);
#endif
break;
/*110 baud*/
case BAUD110:
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B110;
#else
cfsetispeed(&Posix_CommConfig, B110);
cfsetospeed(&Posix_CommConfig, B110);
#endif
break;
/*134.5 baud*/
case BAUD134:
TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 134.5 baud operation.");
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B134;
#else
cfsetispeed(&Posix_CommConfig, B134);
cfsetospeed(&Posix_CommConfig, B134);
#endif
break;
/*150 baud*/
case BAUD150:
TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 150 baud operation.");
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B150;
#else
cfsetispeed(&Posix_CommConfig, B150);
cfsetospeed(&Posix_CommConfig, B150);
#endif
break;
/*200 baud*/
case BAUD200:
TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 200 baud operation.");
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B200;
#else
cfsetispeed(&Posix_CommConfig, B200);
cfsetospeed(&Posix_CommConfig, B200);
#endif
break;
/*300 baud*/
case BAUD300:
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B300;
#else
cfsetispeed(&Posix_CommConfig, B300);
cfsetospeed(&Posix_CommConfig, B300);
#endif
break;
/*600 baud*/
case BAUD600:
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B600;
#else
cfsetispeed(&Posix_CommConfig, B600);
cfsetospeed(&Posix_CommConfig, B600);
#endif
break;
/*1200 baud*/
case BAUD1200:
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B1200;
#else
cfsetispeed(&Posix_CommConfig, B1200);
cfsetospeed(&Posix_CommConfig, B1200);
#endif
break;
/*1800 baud*/
case BAUD1800:
TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows and IRIX do not support 1800 baud operation.");
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B1800;
#else
cfsetispeed(&Posix_CommConfig, B1800);
cfsetospeed(&Posix_CommConfig, B1800);
#endif
break;
/*2400 baud*/
case BAUD2400:
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B2400;
#else
cfsetispeed(&Posix_CommConfig, B2400);
cfsetospeed(&Posix_CommConfig, B2400);
#endif
break;
/*4800 baud*/
case BAUD4800:
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B4800;
#else
cfsetispeed(&Posix_CommConfig, B4800);
cfsetospeed(&Posix_CommConfig, B4800);
#endif
break;
/*9600 baud*/
case BAUD9600:
#ifdef CBAUD
Posix_CommConfig.c_cflag&=(~CBAUD);
Posix_CommConfig.c_cflag|=B9600;
#else
cfsetispeed(&Posix_CommConfig, B9600);
cfsetospeed(&Posix_CommConfig, B9600);
#endif
break;
/*14400 baud*/
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