[1317] | 1 |
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| 2 | /*!
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| 3 | \class Posix_QextSerialPort
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| 4 | \version 1.0.0
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| 5 | \author Stefan Sander
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| 6 |
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| 7 | A cross-platform serial port class.
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| 8 | This class encapsulates the POSIX portion of QextSerialPort. The user will be notified of errors
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| 9 | and possible portability conflicts at run-time by default - this behavior can be turned off by
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| 10 | defining _TTY_NOWARN_ (to turn off all warnings) or _TTY_NOWARN_PORT_ (to turn off portability
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| 11 | warnings) in the project. Note that _TTY_NOWARN_ will also turn off portability warnings.
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| 12 | */
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| 13 |
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| 14 | #include <stdio.h>
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| 15 | #include "posix_qextserialport.h"
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| 16 |
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| 17 | /*!
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| 18 | \fn Posix_QextSerialPort::Posix_QextSerialPort()
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| 19 | Default constructor. Note that the name of the device used by a QextSerialPort constructed with
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| 20 | this constructor will be determined by #defined constants, or lack thereof - the default behavior
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| 21 | is the same as _TTY_LINUX_. Possible naming conventions and their associated constants are:
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| 22 |
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| 23 | \verbatim
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| 24 |
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| 25 | Constant Used By Naming Convention
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| 26 | ---------- ------------- ------------------------
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| 27 | _TTY_WIN_ Windows COM1, COM2
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| 28 | _TTY_IRIX_ SGI/IRIX /dev/ttyf1, /dev/ttyf2
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| 29 | _TTY_HPUX_ HP-UX /dev/tty1p0, /dev/tty2p0
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| 30 | _TTY_SUN_ SunOS/Solaris /dev/ttya, /dev/ttyb
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| 31 | _TTY_DIGITAL_ Digital UNIX /dev/tty01, /dev/tty02
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| 32 | _TTY_FREEBSD_ FreeBSD /dev/ttyd0, /dev/ttyd1
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| 33 | _TTY_LINUX_ Linux /dev/ttyS0, /dev/ttyS1
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| 34 | <none> Linux /dev/ttyS0, /dev/ttyS1
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| 35 | \endverbatim
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| 36 |
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| 37 | This constructor assigns the device name to the name of the first port on the specified system.
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| 38 | See the other constructors if you need to open a different port.
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| 39 | */
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| 40 | Posix_QextSerialPort::Posix_QextSerialPort()
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| 41 | : QextSerialBase()
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| 42 | {
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| 43 | Posix_File=new QFile();
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| 44 | }
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| 45 |
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| 46 | /*!
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| 47 | \fn Posix_QextSerialPort::Posix_QextSerialPort(const Posix_QextSerialPort&)
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| 48 | Copy constructor.
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| 49 | */
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| 50 | Posix_QextSerialPort::Posix_QextSerialPort(const Posix_QextSerialPort& s)
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| 51 | : QextSerialBase(s.port)
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| 52 | {
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| 53 | setOpenMode(s.openMode());
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| 54 | port = s.port;
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| 55 | Settings.BaudRate=s.Settings.BaudRate;
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| 56 | Settings.DataBits=s.Settings.DataBits;
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| 57 | Settings.Parity=s.Settings.Parity;
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| 58 | Settings.StopBits=s.Settings.StopBits;
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| 59 | Settings.FlowControl=s.Settings.FlowControl;
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| 60 | lastErr=s.lastErr;
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| 61 |
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| 62 | Posix_File=new QFile();
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| 63 | Posix_File=s.Posix_File;
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| 64 | memcpy(&Posix_Timeout, &s.Posix_Timeout, sizeof(struct timeval));
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| 65 | memcpy(&Posix_Copy_Timeout, &s.Posix_Copy_Timeout, sizeof(struct timeval));
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| 66 | memcpy(&Posix_CommConfig, &s.Posix_CommConfig, sizeof(struct termios));
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| 67 | }
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| 68 |
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| 69 | /*!
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| 70 | \fn Posix_QextSerialPort::Posix_QextSerialPort(const QString & name)
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| 71 | Constructs a serial port attached to the port specified by name.
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| 72 | name is the name of the device, which is windowsystem-specific,
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| 73 | e.g."COM1" or "/dev/ttyS0".
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| 74 | */
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| 75 | Posix_QextSerialPort::Posix_QextSerialPort(const QString & name)
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| 76 | : QextSerialBase(name)
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| 77 | {
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| 78 | Posix_File=new QFile();
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| 79 | }
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| 80 |
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| 81 | /*!
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| 82 | \fn Posix_QextSerialPort::Posix_QextSerialPort(const PortSettings& settings)
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| 83 | Constructs a port with default name and specified settings.
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| 84 | */
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| 85 | Posix_QextSerialPort::Posix_QextSerialPort(const PortSettings& settings)
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| 86 | : QextSerialBase()
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| 87 | {
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| 88 | setBaudRate(settings.BaudRate);
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| 89 | setDataBits(settings.DataBits);
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| 90 | setParity(settings.Parity);
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| 91 | setStopBits(settings.StopBits);
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| 92 | setFlowControl(settings.FlowControl);
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| 93 |
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| 94 | Posix_File=new QFile();
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| 95 | setTimeout(settings.Timeout_Sec, settings.Timeout_Millisec);
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| 96 | }
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| 97 |
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| 98 | /*!
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| 99 | \fn Posix_QextSerialPort::Posix_QextSerialPort(const QString & name, const PortSettings& settings)
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| 100 | Constructs a port with specified name and settings.
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| 101 | */
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| 102 | Posix_QextSerialPort::Posix_QextSerialPort(const QString & name, const PortSettings& settings)
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| 103 | : QextSerialBase(name)
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| 104 | {
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| 105 | setBaudRate(settings.BaudRate);
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| 106 | setDataBits(settings.DataBits);
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| 107 | setParity(settings.Parity);
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| 108 | setStopBits(settings.StopBits);
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| 109 | setFlowControl(settings.FlowControl);
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| 110 |
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| 111 | Posix_File=new QFile();
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| 112 | setTimeout(settings.Timeout_Sec, settings.Timeout_Millisec);
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| 113 | }
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| 114 |
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| 115 | /*!
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| 116 | \fn Posix_QextSerialPort& Posix_QextSerialPort::operator=(const Posix_QextSerialPort& s)
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| 117 | Override the = operator.
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| 118 | */
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| 119 | Posix_QextSerialPort& Posix_QextSerialPort::operator=(const Posix_QextSerialPort& s)
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| 120 | {
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| 121 | setOpenMode(s.openMode());
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| 122 | port = s.port;
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| 123 | Settings.BaudRate=s.Settings.BaudRate;
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| 124 | Settings.DataBits=s.Settings.DataBits;
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| 125 | Settings.Parity=s.Settings.Parity;
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| 126 | Settings.StopBits=s.Settings.StopBits;
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| 127 | Settings.FlowControl=s.Settings.FlowControl;
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| 128 | lastErr=s.lastErr;
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| 129 |
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| 130 | Posix_File=s.Posix_File;
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| 131 | memcpy(&Posix_Timeout, &(s.Posix_Timeout), sizeof(struct timeval));
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| 132 | memcpy(&Posix_Copy_Timeout, &(s.Posix_Copy_Timeout), sizeof(struct timeval));
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| 133 | memcpy(&Posix_CommConfig, &(s.Posix_CommConfig), sizeof(struct termios));
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| 134 | return *this;
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| 135 | }
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| 136 |
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| 137 | /*!
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| 138 | \fn Posix_QextSerialPort::~Posix_QextSerialPort()
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| 139 | Standard destructor.
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| 140 | */
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| 141 | Posix_QextSerialPort::~Posix_QextSerialPort()
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| 142 | {
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| 143 | if (isOpen()) {
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| 144 | close();
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| 145 | }
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| 146 | Posix_File->close();
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| 147 | delete Posix_File;
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| 148 | }
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| 149 |
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| 150 | /*!
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| 151 | \fn void Posix_QextSerialPort::setBaudRate(BaudRateType baudRate)
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| 152 | Sets the baud rate of the serial port. Note that not all rates are applicable on
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| 153 | all platforms. The following table shows translations of the various baud rate
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| 154 | constants on Windows(including NT/2000) and POSIX platforms. Speeds marked with an *
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| 155 | are speeds that are usable on both Windows and POSIX.
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| 156 |
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| 157 | \note
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| 158 | BAUD76800 may not be supported on all POSIX systems. SGI/IRIX systems do not support
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| 159 | BAUD1800.
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| 160 |
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| 161 | \verbatim
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| 162 |
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| 163 | RATE Windows Speed POSIX Speed
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| 164 | ----------- ------------- -----------
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| 165 | BAUD50 110 50
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| 166 | BAUD75 110 75
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| 167 | *BAUD110 110 110
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| 168 | BAUD134 110 134.5
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| 169 | BAUD150 110 150
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| 170 | BAUD200 110 200
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| 171 | *BAUD300 300 300
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| 172 | *BAUD600 600 600
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| 173 | *BAUD1200 1200 1200
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| 174 | BAUD1800 1200 1800
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| 175 | *BAUD2400 2400 2400
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| 176 | *BAUD4800 4800 4800
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| 177 | *BAUD9600 9600 9600
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| 178 | BAUD14400 14400 9600
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| 179 | *BAUD19200 19200 19200
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| 180 | *BAUD38400 38400 38400
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| 181 | BAUD56000 56000 38400
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| 182 | *BAUD57600 57600 57600
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| 183 | BAUD76800 57600 76800
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| 184 | *BAUD115200 115200 115200
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| 185 | BAUD128000 128000 115200
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| 186 | BAUD256000 256000 115200
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| 187 | \endverbatim
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| 188 | */
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| 189 | void Posix_QextSerialPort::setBaudRate(BaudRateType baudRate)
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| 190 | {
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| 191 | LOCK_MUTEX();
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| 192 | if (Settings.BaudRate!=baudRate) {
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| 193 | switch (baudRate) {
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| 194 | case BAUD14400:
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| 195 | Settings.BaudRate=BAUD9600;
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| 196 | break;
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| 197 |
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| 198 | case BAUD56000:
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| 199 | Settings.BaudRate=BAUD38400;
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| 200 | break;
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| 201 |
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| 202 | case BAUD76800:
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| 203 |
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| 204 | #ifndef B76800
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| 205 | Settings.BaudRate=BAUD57600;
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| 206 | #else
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| 207 | Settings.BaudRate=baudRate;
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| 208 | #endif
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| 209 | break;
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| 210 |
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| 211 | case BAUD128000:
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| 212 | case BAUD256000:
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| 213 | Settings.BaudRate=BAUD115200;
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| 214 | break;
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| 215 |
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| 216 | default:
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| 217 | Settings.BaudRate=baudRate;
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| 218 | break;
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| 219 | }
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| 220 | }
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| 221 | if (isOpen()) {
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| 222 | switch (baudRate) {
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| 223 |
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| 224 | /*50 baud*/
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| 225 | case BAUD50:
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| 226 | TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 50 baud operation.");
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| 227 | #ifdef CBAUD
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| 228 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 229 | Posix_CommConfig.c_cflag|=B50;
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| 230 | #else
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| 231 | cfsetispeed(&Posix_CommConfig, B50);
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| 232 | cfsetospeed(&Posix_CommConfig, B50);
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| 233 | #endif
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| 234 | break;
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| 235 |
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| 236 | /*75 baud*/
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| 237 | case BAUD75:
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| 238 | TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 75 baud operation.");
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| 239 | #ifdef CBAUD
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| 240 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 241 | Posix_CommConfig.c_cflag|=B75;
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| 242 | #else
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| 243 | cfsetispeed(&Posix_CommConfig, B75);
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| 244 | cfsetospeed(&Posix_CommConfig, B75);
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| 245 | #endif
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| 246 | break;
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| 247 |
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| 248 | /*110 baud*/
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| 249 | case BAUD110:
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| 250 | #ifdef CBAUD
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| 251 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 252 | Posix_CommConfig.c_cflag|=B110;
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| 253 | #else
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| 254 | cfsetispeed(&Posix_CommConfig, B110);
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| 255 | cfsetospeed(&Posix_CommConfig, B110);
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| 256 | #endif
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| 257 | break;
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| 258 |
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| 259 | /*134.5 baud*/
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| 260 | case BAUD134:
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| 261 | TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 134.5 baud operation.");
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| 262 | #ifdef CBAUD
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| 263 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 264 | Posix_CommConfig.c_cflag|=B134;
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| 265 | #else
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| 266 | cfsetispeed(&Posix_CommConfig, B134);
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| 267 | cfsetospeed(&Posix_CommConfig, B134);
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| 268 | #endif
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| 269 | break;
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| 270 |
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| 271 | /*150 baud*/
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| 272 | case BAUD150:
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| 273 | TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 150 baud operation.");
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| 274 | #ifdef CBAUD
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| 275 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 276 | Posix_CommConfig.c_cflag|=B150;
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| 277 | #else
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| 278 | cfsetispeed(&Posix_CommConfig, B150);
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| 279 | cfsetospeed(&Posix_CommConfig, B150);
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| 280 | #endif
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| 281 | break;
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| 282 |
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| 283 | /*200 baud*/
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| 284 | case BAUD200:
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| 285 | TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 200 baud operation.");
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| 286 | #ifdef CBAUD
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| 287 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 288 | Posix_CommConfig.c_cflag|=B200;
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| 289 | #else
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| 290 | cfsetispeed(&Posix_CommConfig, B200);
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| 291 | cfsetospeed(&Posix_CommConfig, B200);
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| 292 | #endif
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| 293 | break;
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| 294 |
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| 295 | /*300 baud*/
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| 296 | case BAUD300:
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| 297 | #ifdef CBAUD
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| 298 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 299 | Posix_CommConfig.c_cflag|=B300;
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| 300 | #else
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| 301 | cfsetispeed(&Posix_CommConfig, B300);
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| 302 | cfsetospeed(&Posix_CommConfig, B300);
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| 303 | #endif
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| 304 | break;
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| 305 |
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| 306 | /*600 baud*/
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| 307 | case BAUD600:
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| 308 | #ifdef CBAUD
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| 309 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 310 | Posix_CommConfig.c_cflag|=B600;
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| 311 | #else
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| 312 | cfsetispeed(&Posix_CommConfig, B600);
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| 313 | cfsetospeed(&Posix_CommConfig, B600);
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| 314 | #endif
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| 315 | break;
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| 316 |
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| 317 | /*1200 baud*/
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| 318 | case BAUD1200:
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| 319 | #ifdef CBAUD
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| 320 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 321 | Posix_CommConfig.c_cflag|=B1200;
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| 322 | #else
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| 323 | cfsetispeed(&Posix_CommConfig, B1200);
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| 324 | cfsetospeed(&Posix_CommConfig, B1200);
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| 325 | #endif
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| 326 | break;
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| 327 |
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| 328 | /*1800 baud*/
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| 329 | case BAUD1800:
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| 330 | TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows and IRIX do not support 1800 baud operation.");
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| 331 | #ifdef CBAUD
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| 332 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 333 | Posix_CommConfig.c_cflag|=B1800;
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| 334 | #else
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| 335 | cfsetispeed(&Posix_CommConfig, B1800);
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| 336 | cfsetospeed(&Posix_CommConfig, B1800);
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| 337 | #endif
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| 338 | break;
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| 339 |
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| 340 | /*2400 baud*/
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| 341 | case BAUD2400:
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| 342 | #ifdef CBAUD
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| 343 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 344 | Posix_CommConfig.c_cflag|=B2400;
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| 345 | #else
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| 346 | cfsetispeed(&Posix_CommConfig, B2400);
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| 347 | cfsetospeed(&Posix_CommConfig, B2400);
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| 348 | #endif
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| 349 | break;
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| 350 |
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| 351 | /*4800 baud*/
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| 352 | case BAUD4800:
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| 353 | #ifdef CBAUD
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| 354 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 355 | Posix_CommConfig.c_cflag|=B4800;
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| 356 | #else
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| 357 | cfsetispeed(&Posix_CommConfig, B4800);
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| 358 | cfsetospeed(&Posix_CommConfig, B4800);
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| 359 | #endif
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| 360 | break;
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| 361 |
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| 362 | /*9600 baud*/
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| 363 | case BAUD9600:
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| 364 | #ifdef CBAUD
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| 365 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 366 | Posix_CommConfig.c_cflag|=B9600;
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| 367 | #else
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| 368 | cfsetispeed(&Posix_CommConfig, B9600);
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| 369 | cfsetospeed(&Posix_CommConfig, B9600);
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| 370 | #endif
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| 371 | break;
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| 372 |
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| 373 | /*14400 baud*/
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| 374 | case BAUD14400:
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| 375 | TTY_WARNING("Posix_QextSerialPort: POSIX does not support 14400 baud operation. Switching to 9600 baud.");
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| 376 | #ifdef CBAUD
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| 377 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 378 | Posix_CommConfig.c_cflag|=B9600;
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| 379 | #else
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| 380 | cfsetispeed(&Posix_CommConfig, B9600);
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| 381 | cfsetospeed(&Posix_CommConfig, B9600);
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| 382 | #endif
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| 383 | break;
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| 384 |
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| 385 | /*19200 baud*/
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| 386 | case BAUD19200:
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| 387 | #ifdef CBAUD
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| 388 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 389 | Posix_CommConfig.c_cflag|=B19200;
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| 390 | #else
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| 391 | cfsetispeed(&Posix_CommConfig, B19200);
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| 392 | cfsetospeed(&Posix_CommConfig, B19200);
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| 393 | #endif
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| 394 | break;
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| 395 |
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| 396 | /*38400 baud*/
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| 397 | case BAUD38400:
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| 398 | #ifdef CBAUD
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| 399 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 400 | Posix_CommConfig.c_cflag|=B38400;
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| 401 | #else
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| 402 | cfsetispeed(&Posix_CommConfig, B38400);
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| 403 | cfsetospeed(&Posix_CommConfig, B38400);
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| 404 | #endif
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| 405 | break;
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| 406 |
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| 407 | /*56000 baud*/
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| 408 | case BAUD56000:
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| 409 | TTY_WARNING("Posix_QextSerialPort: POSIX does not support 56000 baud operation. Switching to 38400 baud.");
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| 410 | #ifdef CBAUD
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| 411 | Posix_CommConfig.c_cflag&=(~CBAUD);
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| 412 | Posix_CommConfig.c_cflag|=B38400;
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| 413 | #else
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| 414 | cfsetispeed(&Posix_CommConfig, B38400);
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| 415 | cfsetospeed(&Posix_CommConfig, B38400);
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| 416 | #endif
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| 417 | break;
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| 418 |
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| 419 | /*57600 baud*/
|
---|
| 420 | case BAUD57600:
|
---|
| 421 | #ifdef CBAUD
|
---|
| 422 | Posix_CommConfig.c_cflag&=(~CBAUD);
|
---|
| 423 | Posix_CommConfig.c_cflag|=B57600;
|
---|
| 424 | #else
|
---|
| 425 | cfsetispeed(&Posix_CommConfig, B57600);
|
---|
| 426 | cfsetospeed(&Posix_CommConfig, B57600);
|
---|
| 427 | #endif
|
---|
| 428 | break;
|
---|
| 429 |
|
---|
| 430 | /*76800 baud*/
|
---|
| 431 | case BAUD76800:
|
---|
| 432 | TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows and some POSIX systems do not support 76800 baud operation.");
|
---|
| 433 | #ifdef CBAUD
|
---|
| 434 | Posix_CommConfig.c_cflag&=(~CBAUD);
|
---|
| 435 |
|
---|
| 436 | #ifdef B76800
|
---|
| 437 | Posix_CommConfig.c_cflag|=B76800;
|
---|
| 438 | #else
|
---|
| 439 | TTY_WARNING("Posix_QextSerialPort: Posix_QextSerialPort was compiled without 76800 baud support. Switching to 57600 baud.");
|
---|
| 440 | Posix_CommConfig.c_cflag|=B57600;
|
---|
| 441 | #endif //B76800
|
---|
| 442 | #else //CBAUD
|
---|
| 443 | #ifdef B76800
|
---|
| 444 | cfsetispeed(&Posix_CommConfig, B76800);
|
---|
| 445 | cfsetospeed(&Posix_CommConfig, B76800);
|
---|
| 446 | #else
|
---|
| 447 | TTY_WARNING("Posix_QextSerialPort: Posix_QextSerialPort was compiled without 76800 baud support. Switching to 57600 baud.");
|
---|
| 448 | cfsetispeed(&Posix_CommConfig, B57600);
|
---|
| 449 | cfsetospeed(&Posix_CommConfig, B57600);
|
---|
| 450 | #endif //B76800
|
---|
| 451 | #endif //CBAUD
|
---|
| 452 | break;
|
---|
| 453 |
|
---|
| 454 | /*115200 baud*/
|
---|
| 455 | case BAUD115200:
|
---|
| 456 | #ifdef CBAUD
|
---|
| 457 | Posix_CommConfig.c_cflag&=(~CBAUD);
|
---|
| 458 | Posix_CommConfig.c_cflag|=B115200;
|
---|
| 459 | #else
|
---|
| 460 | cfsetispeed(&Posix_CommConfig, B115200);
|
---|
| 461 | cfsetospeed(&Posix_CommConfig, B115200);
|
---|
| 462 | #endif
|
---|
| 463 | break;
|
---|
| 464 |
|
---|
| 465 | /*128000 baud*/
|
---|
| 466 | case BAUD128000:
|
---|
| 467 | TTY_WARNING("Posix_QextSerialPort: POSIX does not support 128000 baud operation. Switching to 115200 baud.");
|
---|
| 468 | #ifdef CBAUD
|
---|
| 469 | Posix_CommConfig.c_cflag&=(~CBAUD);
|
---|
| 470 | Posix_CommConfig.c_cflag|=B115200;
|
---|
| 471 | #else
|
---|
| 472 | cfsetispeed(&Posix_CommConfig, B115200);
|
---|
| 473 | cfsetospeed(&Posix_CommConfig, B115200);
|
---|
| 474 | #endif
|
---|
| 475 | break;
|
---|
| 476 |
|
---|
| 477 | /*256000 baud*/
|
---|
| 478 | case BAUD256000:
|
---|
| 479 | TTY_WARNING("Posix_QextSerialPort: POSIX does not support 256000 baud operation. Switching to 115200 baud.");
|
---|
| 480 | #ifdef CBAUD
|
---|
| 481 | Posix_CommConfig.c_cflag&=(~CBAUD);
|
---|
| 482 | Posix_CommConfig.c_cflag|=B115200;
|
---|
| 483 | #else
|
---|
| 484 | cfsetispeed(&Posix_CommConfig, B115200);
|
---|
| 485 | cfsetospeed(&Posix_CommConfig, B115200);
|
---|
| 486 | #endif
|
---|
| 487 | break;
|
---|
| 488 | }
|
---|
| 489 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 490 | }
|
---|
| 491 | UNLOCK_MUTEX();
|
---|
| 492 | }
|
---|
| 493 |
|
---|
| 494 | /*!
|
---|
| 495 | \fn void Posix_QextSerialPort::setDataBits(DataBitsType dataBits)
|
---|
| 496 | Sets the number of data bits used by the serial port. Possible values of dataBits are:
|
---|
| 497 | \verbatim
|
---|
| 498 | DATA_5 5 data bits
|
---|
| 499 | DATA_6 6 data bits
|
---|
| 500 | DATA_7 7 data bits
|
---|
| 501 | DATA_8 8 data bits
|
---|
| 502 | \endverbatim
|
---|
| 503 |
|
---|
| 504 | \note
|
---|
| 505 | This function is subject to the following restrictions:
|
---|
| 506 | \par
|
---|
| 507 | 5 data bits cannot be used with 2 stop bits.
|
---|
| 508 | \par
|
---|
| 509 | 8 data bits cannot be used with space parity on POSIX systems.
|
---|
| 510 |
|
---|
| 511 | */
|
---|
| 512 | void Posix_QextSerialPort::setDataBits(DataBitsType dataBits)
|
---|
| 513 | {
|
---|
| 514 | LOCK_MUTEX();
|
---|
| 515 | if (Settings.DataBits!=dataBits) {
|
---|
| 516 | if ((Settings.StopBits==STOP_2 && dataBits==DATA_5) ||
|
---|
| 517 | (Settings.StopBits==STOP_1_5 && dataBits!=DATA_5) ||
|
---|
| 518 | (Settings.Parity==PAR_SPACE && dataBits==DATA_8)) {
|
---|
| 519 | }
|
---|
| 520 | else {
|
---|
| 521 | Settings.DataBits=dataBits;
|
---|
| 522 | }
|
---|
| 523 | }
|
---|
| 524 | if (isOpen()) {
|
---|
| 525 | switch(dataBits) {
|
---|
| 526 |
|
---|
| 527 | /*5 data bits*/
|
---|
| 528 | case DATA_5:
|
---|
| 529 | if (Settings.StopBits==STOP_2) {
|
---|
| 530 | TTY_WARNING("Posix_QextSerialPort: 5 Data bits cannot be used with 2 stop bits.");
|
---|
| 531 | }
|
---|
| 532 | else {
|
---|
| 533 | Settings.DataBits=dataBits;
|
---|
| 534 | Posix_CommConfig.c_cflag&=(~CSIZE);
|
---|
| 535 | Posix_CommConfig.c_cflag|=CS5;
|
---|
| 536 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 537 | }
|
---|
| 538 | break;
|
---|
| 539 |
|
---|
| 540 | /*6 data bits*/
|
---|
| 541 | case DATA_6:
|
---|
| 542 | if (Settings.StopBits==STOP_1_5) {
|
---|
| 543 | TTY_WARNING("Posix_QextSerialPort: 6 Data bits cannot be used with 1.5 stop bits.");
|
---|
| 544 | }
|
---|
| 545 | else {
|
---|
| 546 | Settings.DataBits=dataBits;
|
---|
| 547 | Posix_CommConfig.c_cflag&=(~CSIZE);
|
---|
| 548 | Posix_CommConfig.c_cflag|=CS6;
|
---|
| 549 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 550 | }
|
---|
| 551 | break;
|
---|
| 552 |
|
---|
| 553 | /*7 data bits*/
|
---|
| 554 | case DATA_7:
|
---|
| 555 | if (Settings.StopBits==STOP_1_5) {
|
---|
| 556 | TTY_WARNING("Posix_QextSerialPort: 7 Data bits cannot be used with 1.5 stop bits.");
|
---|
| 557 | }
|
---|
| 558 | else {
|
---|
| 559 | Settings.DataBits=dataBits;
|
---|
| 560 | Posix_CommConfig.c_cflag&=(~CSIZE);
|
---|
| 561 | Posix_CommConfig.c_cflag|=CS7;
|
---|
| 562 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 563 | }
|
---|
| 564 | break;
|
---|
| 565 |
|
---|
| 566 | /*8 data bits*/
|
---|
| 567 | case DATA_8:
|
---|
| 568 | if (Settings.StopBits==STOP_1_5) {
|
---|
| 569 | TTY_WARNING("Posix_QextSerialPort: 8 Data bits cannot be used with 1.5 stop bits.");
|
---|
| 570 | }
|
---|
| 571 | else {
|
---|
| 572 | Settings.DataBits=dataBits;
|
---|
| 573 | Posix_CommConfig.c_cflag&=(~CSIZE);
|
---|
| 574 | Posix_CommConfig.c_cflag|=CS8;
|
---|
| 575 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 576 | }
|
---|
| 577 | break;
|
---|
| 578 | }
|
---|
| 579 | }
|
---|
| 580 | UNLOCK_MUTEX();
|
---|
| 581 | }
|
---|
| 582 |
|
---|
| 583 | /*!
|
---|
| 584 | \fn void Posix_QextSerialPort::setParity(ParityType parity)
|
---|
| 585 | Sets the parity associated with the serial port. The possible values of parity are:
|
---|
| 586 | \verbatim
|
---|
| 587 | PAR_SPACE Space Parity
|
---|
| 588 | PAR_MARK Mark Parity
|
---|
| 589 | PAR_NONE No Parity
|
---|
| 590 | PAR_EVEN Even Parity
|
---|
| 591 | PAR_ODD Odd Parity
|
---|
| 592 | \endverbatim
|
---|
| 593 |
|
---|
| 594 | \note
|
---|
| 595 | This function is subject to the following limitations:
|
---|
| 596 | \par
|
---|
| 597 | POSIX systems do not support mark parity.
|
---|
| 598 | \par
|
---|
| 599 | POSIX systems support space parity only if tricked into doing so, and only with
|
---|
| 600 | fewer than 8 data bits. Use space parity very carefully with POSIX systems.
|
---|
| 601 |
|
---|
| 602 | */
|
---|
| 603 | void Posix_QextSerialPort::setParity(ParityType parity)
|
---|
| 604 | {
|
---|
| 605 | LOCK_MUTEX();
|
---|
| 606 | if (Settings.Parity!=parity) {
|
---|
| 607 | if (parity==PAR_MARK || (parity==PAR_SPACE && Settings.DataBits==DATA_8)) {
|
---|
| 608 | }
|
---|
| 609 | else {
|
---|
| 610 | Settings.Parity=parity;
|
---|
| 611 | }
|
---|
| 612 | }
|
---|
| 613 | if (isOpen()) {
|
---|
| 614 | switch (parity) {
|
---|
| 615 |
|
---|
| 616 | /*space parity*/
|
---|
| 617 | case PAR_SPACE:
|
---|
| 618 | if (Settings.DataBits==DATA_8) {
|
---|
| 619 | TTY_PORTABILITY_WARNING("Posix_QextSerialPort: Space parity is only supported in POSIX with 7 or fewer data bits");
|
---|
| 620 | }
|
---|
| 621 | else {
|
---|
| 622 |
|
---|
| 623 | /*space parity not directly supported - add an extra data bit to simulate it*/
|
---|
| 624 | Posix_CommConfig.c_cflag&=~(PARENB|CSIZE);
|
---|
| 625 | switch(Settings.DataBits) {
|
---|
| 626 | case DATA_5:
|
---|
| 627 | Settings.DataBits=DATA_6;
|
---|
| 628 | Posix_CommConfig.c_cflag|=CS6;
|
---|
| 629 | break;
|
---|
| 630 |
|
---|
| 631 | case DATA_6:
|
---|
| 632 | Settings.DataBits=DATA_7;
|
---|
| 633 | Posix_CommConfig.c_cflag|=CS7;
|
---|
| 634 | break;
|
---|
| 635 |
|
---|
| 636 | case DATA_7:
|
---|
| 637 | Settings.DataBits=DATA_8;
|
---|
| 638 | Posix_CommConfig.c_cflag|=CS8;
|
---|
| 639 | break;
|
---|
| 640 |
|
---|
| 641 | case DATA_8:
|
---|
| 642 | break;
|
---|
| 643 | }
|
---|
| 644 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 645 | }
|
---|
| 646 | break;
|
---|
| 647 |
|
---|
| 648 | /*mark parity - WINDOWS ONLY*/
|
---|
| 649 | case PAR_MARK:
|
---|
| 650 | TTY_WARNING("Posix_QextSerialPort: Mark parity is not supported by POSIX.");
|
---|
| 651 | break;
|
---|
| 652 |
|
---|
| 653 | /*no parity*/
|
---|
| 654 | case PAR_NONE:
|
---|
| 655 | Posix_CommConfig.c_cflag&=(~PARENB);
|
---|
| 656 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 657 | break;
|
---|
| 658 |
|
---|
| 659 | /*even parity*/
|
---|
| 660 | case PAR_EVEN:
|
---|
| 661 | Posix_CommConfig.c_cflag&=(~PARODD);
|
---|
| 662 | Posix_CommConfig.c_cflag|=PARENB;
|
---|
| 663 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 664 | break;
|
---|
| 665 |
|
---|
| 666 | /*odd parity*/
|
---|
| 667 | case PAR_ODD:
|
---|
| 668 | Posix_CommConfig.c_cflag|=(PARENB|PARODD);
|
---|
| 669 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 670 | break;
|
---|
| 671 | }
|
---|
| 672 | }
|
---|
| 673 | UNLOCK_MUTEX();
|
---|
| 674 | }
|
---|
| 675 |
|
---|
| 676 | /*!
|
---|
| 677 | \fn void Posix_QextSerialPort::setStopBits(StopBitsType stopBits)
|
---|
| 678 | Sets the number of stop bits used by the serial port. Possible values of stopBits are:
|
---|
| 679 | \verbatim
|
---|
| 680 | STOP_1 1 stop bit
|
---|
| 681 | STOP_1_5 1.5 stop bits
|
---|
| 682 | STOP_2 2 stop bits
|
---|
| 683 | \endverbatim
|
---|
| 684 | \note
|
---|
| 685 | This function is subject to the following restrictions:
|
---|
| 686 | \par
|
---|
| 687 | 2 stop bits cannot be used with 5 data bits.
|
---|
| 688 | \par
|
---|
| 689 | POSIX does not support 1.5 stop bits.
|
---|
| 690 |
|
---|
| 691 | */
|
---|
| 692 | void Posix_QextSerialPort::setStopBits(StopBitsType stopBits)
|
---|
| 693 | {
|
---|
| 694 | LOCK_MUTEX();
|
---|
| 695 | if (Settings.StopBits!=stopBits) {
|
---|
| 696 | if ((Settings.DataBits==DATA_5 && stopBits==STOP_2) || stopBits==STOP_1_5) {}
|
---|
| 697 | else {
|
---|
| 698 | Settings.StopBits=stopBits;
|
---|
| 699 | }
|
---|
| 700 | }
|
---|
| 701 | if (isOpen()) {
|
---|
| 702 | switch (stopBits) {
|
---|
| 703 |
|
---|
| 704 | /*one stop bit*/
|
---|
| 705 | case STOP_1:
|
---|
| 706 | Settings.StopBits=stopBits;
|
---|
| 707 | Posix_CommConfig.c_cflag&=(~CSTOPB);
|
---|
| 708 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 709 | break;
|
---|
| 710 |
|
---|
| 711 | /*1.5 stop bits*/
|
---|
| 712 | case STOP_1_5:
|
---|
| 713 | TTY_WARNING("Posix_QextSerialPort: 1.5 stop bit operation is not supported by POSIX.");
|
---|
| 714 | break;
|
---|
| 715 |
|
---|
| 716 | /*two stop bits*/
|
---|
| 717 | case STOP_2:
|
---|
| 718 | if (Settings.DataBits==DATA_5) {
|
---|
| 719 | TTY_WARNING("Posix_QextSerialPort: 2 stop bits cannot be used with 5 data bits");
|
---|
| 720 | }
|
---|
| 721 | else {
|
---|
| 722 | Settings.StopBits=stopBits;
|
---|
| 723 | Posix_CommConfig.c_cflag|=CSTOPB;
|
---|
| 724 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 725 | }
|
---|
| 726 | break;
|
---|
| 727 | }
|
---|
| 728 | }
|
---|
| 729 | UNLOCK_MUTEX();
|
---|
| 730 | }
|
---|
| 731 |
|
---|
| 732 | /*!
|
---|
| 733 | \fn void Posix_QextSerialPort::setFlowControl(FlowType flow)
|
---|
| 734 | Sets the flow control used by the port. Possible values of flow are:
|
---|
| 735 | \verbatim
|
---|
| 736 | FLOW_OFF No flow control
|
---|
| 737 | FLOW_HARDWARE Hardware (RTS/CTS) flow control
|
---|
| 738 | FLOW_XONXOFF Software (XON/XOFF) flow control
|
---|
| 739 | \endverbatim
|
---|
| 740 | \note
|
---|
| 741 | FLOW_HARDWARE may not be supported on all versions of UNIX. In cases where it is
|
---|
| 742 | unsupported, FLOW_HARDWARE is the same as FLOW_OFF.
|
---|
| 743 |
|
---|
| 744 | */
|
---|
| 745 | void Posix_QextSerialPort::setFlowControl(FlowType flow)
|
---|
| 746 | {
|
---|
| 747 | LOCK_MUTEX();
|
---|
| 748 | if (Settings.FlowControl!=flow) {
|
---|
| 749 | Settings.FlowControl=flow;
|
---|
| 750 | }
|
---|
| 751 | if (isOpen()) {
|
---|
| 752 | switch(flow) {
|
---|
| 753 |
|
---|
| 754 | /*no flow control*/
|
---|
| 755 | case FLOW_OFF:
|
---|
| 756 | Posix_CommConfig.c_cflag&=(~CRTSCTS);
|
---|
| 757 | Posix_CommConfig.c_iflag&=(~(IXON|IXOFF|IXANY));
|
---|
| 758 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 759 | break;
|
---|
| 760 |
|
---|
| 761 | /*software (XON/XOFF) flow control*/
|
---|
| 762 | case FLOW_XONXOFF:
|
---|
| 763 | Posix_CommConfig.c_cflag&=(~CRTSCTS);
|
---|
| 764 | Posix_CommConfig.c_iflag|=(IXON|IXOFF|IXANY);
|
---|
| 765 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 766 | break;
|
---|
| 767 |
|
---|
| 768 | case FLOW_HARDWARE:
|
---|
| 769 | Posix_CommConfig.c_cflag|=CRTSCTS;
|
---|
| 770 | Posix_CommConfig.c_iflag&=(~(IXON|IXOFF|IXANY));
|
---|
| 771 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 772 | break;
|
---|
| 773 | }
|
---|
| 774 | }
|
---|
| 775 | UNLOCK_MUTEX();
|
---|
| 776 | }
|
---|
| 777 |
|
---|
| 778 | /*!
|
---|
| 779 | \fn void Posix_QextSerialPort::setTimeout(ulong sec, ulong millisec);
|
---|
| 780 | Sets the read and write timeouts for the port to sec seconds and millisec milliseconds.
|
---|
| 781 | Note that this is a per-character timeout, i.e. the port will wait this long for each
|
---|
| 782 | individual character, not for the whole read operation. This timeout also applies to the
|
---|
| 783 | bytesWaiting() function.
|
---|
| 784 |
|
---|
| 785 | \note
|
---|
| 786 | POSIX does not support millisecond-level control for I/O timeout values. Any
|
---|
| 787 | timeout set using this function will be set to the next lowest tenth of a second for
|
---|
| 788 | the purposes of detecting read or write timeouts. For example a timeout of 550 milliseconds
|
---|
| 789 | will be seen by the class as a timeout of 500 milliseconds for the purposes of reading and
|
---|
| 790 | writing the port. However millisecond-level control is allowed by the select() system call,
|
---|
| 791 | so for example a 550-millisecond timeout will be seen as 550 milliseconds on POSIX systems for
|
---|
| 792 | the purpose of detecting available bytes in the read buffer.
|
---|
| 793 |
|
---|
| 794 | */
|
---|
| 795 | void Posix_QextSerialPort::setTimeout(ulong sec, ulong millisec)
|
---|
| 796 | {
|
---|
| 797 | LOCK_MUTEX();
|
---|
| 798 | Settings.Timeout_Sec=sec;
|
---|
| 799 | Settings.Timeout_Millisec=millisec;
|
---|
| 800 | Posix_Copy_Timeout.tv_sec=sec;
|
---|
| 801 | Posix_Copy_Timeout.tv_usec=millisec;
|
---|
| 802 | if (isOpen()) {
|
---|
| 803 | tcgetattr(Posix_File->handle(), &Posix_CommConfig);
|
---|
| 804 | Posix_CommConfig.c_cc[VTIME]=sec*10+millisec/100;
|
---|
| 805 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 806 | }
|
---|
| 807 | UNLOCK_MUTEX();
|
---|
| 808 | }
|
---|
| 809 |
|
---|
| 810 | /*!
|
---|
| 811 | \fn bool Posix_QextSerialPort::open(OpenMode mode)
|
---|
| 812 | Opens the serial port associated to this class.
|
---|
| 813 | This function has no effect if the port associated with the class is already open.
|
---|
| 814 | The port is also configured to the current settings, as stored in the Settings structure.
|
---|
| 815 | */
|
---|
| 816 | bool Posix_QextSerialPort::open(OpenMode mode)
|
---|
| 817 | {
|
---|
| 818 | LOCK_MUTEX();
|
---|
| 819 | if (mode == QIODevice::NotOpen)
|
---|
| 820 | return isOpen();
|
---|
| 821 | if (!isOpen()) {
|
---|
| 822 | /*open the port*/
|
---|
| 823 | Posix_File->setFileName(port);
|
---|
[1346] | 824 | //// qDebug("Trying to open File");
|
---|
[1317] | 825 | if (Posix_File->open(QIODevice::ReadWrite|QIODevice::Unbuffered)) {
|
---|
[1346] | 826 | /// qDebug("Opened File succesfully");
|
---|
[1317] | 827 | /*set open mode*/
|
---|
| 828 | QIODevice::open(mode);
|
---|
| 829 |
|
---|
| 830 | /*configure port settings*/
|
---|
| 831 | tcgetattr(Posix_File->handle(), &Posix_CommConfig);
|
---|
| 832 |
|
---|
| 833 | /*set up other port settings*/
|
---|
| 834 | Posix_CommConfig.c_cflag|=CREAD|CLOCAL;
|
---|
| 835 | Posix_CommConfig.c_lflag&=(~(ICANON|ECHO|ECHOE|ECHOK|ECHONL|ISIG));
|
---|
| 836 | Posix_CommConfig.c_iflag&=(~(INPCK|IGNPAR|PARMRK|ISTRIP|ICRNL|IXANY));
|
---|
| 837 | Posix_CommConfig.c_oflag&=(~OPOST);
|
---|
| 838 | Posix_CommConfig.c_cc[VMIN]=0;
|
---|
| 839 | Posix_CommConfig.c_cc[VINTR] = _POSIX_VDISABLE;
|
---|
| 840 | Posix_CommConfig.c_cc[VQUIT] = _POSIX_VDISABLE;
|
---|
| 841 | Posix_CommConfig.c_cc[VSTART] = _POSIX_VDISABLE;
|
---|
| 842 | Posix_CommConfig.c_cc[VSTOP] = _POSIX_VDISABLE;
|
---|
| 843 | Posix_CommConfig.c_cc[VSUSP] = _POSIX_VDISABLE;
|
---|
| 844 | setBaudRate(Settings.BaudRate);
|
---|
| 845 | setDataBits(Settings.DataBits);
|
---|
| 846 | setParity(Settings.Parity);
|
---|
| 847 | setStopBits(Settings.StopBits);
|
---|
| 848 | setFlowControl(Settings.FlowControl);
|
---|
| 849 | setTimeout(Settings.Timeout_Sec, Settings.Timeout_Millisec);
|
---|
| 850 | tcsetattr(Posix_File->handle(), TCSAFLUSH, &Posix_CommConfig);
|
---|
| 851 | } else {
|
---|
| 852 | qDebug("Could not open File! Error code : %d", Posix_File->error());
|
---|
| 853 | }
|
---|
| 854 | }
|
---|
| 855 | UNLOCK_MUTEX();
|
---|
| 856 | return isOpen();
|
---|
| 857 | }
|
---|
| 858 |
|
---|
| 859 | /*!
|
---|
| 860 | \fn void Posix_QextSerialPort::close()
|
---|
| 861 | Closes a serial port. This function has no effect if the serial port associated with the class
|
---|
| 862 | is not currently open.
|
---|
| 863 | */
|
---|
| 864 | void Posix_QextSerialPort::close()
|
---|
| 865 | {
|
---|
| 866 | LOCK_MUTEX();
|
---|
| 867 | Posix_File->close();
|
---|
| 868 | QIODevice::close();
|
---|
| 869 | UNLOCK_MUTEX();
|
---|
| 870 | }
|
---|
| 871 |
|
---|
| 872 | /*!
|
---|
| 873 | \fn void Posix_QextSerialPort::flush()
|
---|
| 874 | Flushes all pending I/O to the serial port. This function has no effect if the serial port
|
---|
| 875 | associated with the class is not currently open.
|
---|
| 876 | */
|
---|
| 877 | void Posix_QextSerialPort::flush()
|
---|
| 878 | {
|
---|
| 879 | LOCK_MUTEX();
|
---|
| 880 | if (isOpen()) {
|
---|
| 881 | Posix_File->flush();
|
---|
| 882 | }
|
---|
| 883 | UNLOCK_MUTEX();
|
---|
| 884 | }
|
---|
| 885 |
|
---|
| 886 | /*!
|
---|
| 887 | \fn qint64 Posix_QextSerialPort::size() const
|
---|
| 888 | This function will return the number of bytes waiting in the receive queue of the serial port.
|
---|
| 889 | It is included primarily to provide a complete QIODevice interface, and will not record errors
|
---|
| 890 | in the lastErr member (because it is const). This function is also not thread-safe - in
|
---|
| 891 | multithreading situations, use Posix_QextSerialPort::bytesWaiting() instead.
|
---|
| 892 | */
|
---|
| 893 | qint64 Posix_QextSerialPort::size() const
|
---|
| 894 | {
|
---|
| 895 | int numBytes;
|
---|
| 896 | if (ioctl(Posix_File->handle(), FIONREAD, &numBytes)<0) {
|
---|
| 897 | numBytes=0;
|
---|
| 898 | }
|
---|
| 899 | return (qint64)numBytes;
|
---|
| 900 | }
|
---|
| 901 |
|
---|
| 902 | /*!
|
---|
| 903 | \fn qint64 Posix_QextSerialPort::bytesAvailable()
|
---|
| 904 | Returns the number of bytes waiting in the port's receive queue. This function will return 0 if
|
---|
| 905 | the port is not currently open, or -1 on error. Error information can be retrieved by calling
|
---|
| 906 | Posix_QextSerialPort::getLastError().
|
---|
| 907 | */
|
---|
| 908 | qint64 Posix_QextSerialPort::bytesAvailable()
|
---|
| 909 | {
|
---|
| 910 | LOCK_MUTEX();
|
---|
| 911 | if (isOpen()) {
|
---|
| 912 | int bytesQueued;
|
---|
| 913 | fd_set fileSet;
|
---|
| 914 | FD_ZERO(&fileSet);
|
---|
| 915 | FD_SET(Posix_File->handle(), &fileSet);
|
---|
| 916 |
|
---|
| 917 | /*on Linux systems the Posix_Timeout structure will be altered by the select() call.
|
---|
| 918 | Make sure we use the right timeout values*/
|
---|
| 919 | //memcpy(&Posix_Timeout, &Posix_Copy_Timeout, sizeof(struct timeval));
|
---|
| 920 | Posix_Timeout = Posix_Copy_Timeout;
|
---|
| 921 | int n=select(Posix_File->handle()+1, &fileSet, NULL, &fileSet, &Posix_Timeout);
|
---|
| 922 | if (!n) {
|
---|
| 923 | lastErr=E_PORT_TIMEOUT;
|
---|
| 924 | UNLOCK_MUTEX();
|
---|
| 925 | return -1;
|
---|
| 926 | }
|
---|
| 927 | if (n==-1 || ioctl(Posix_File->handle(), FIONREAD, &bytesQueued)==-1) {
|
---|
| 928 | translateError(errno);
|
---|
| 929 | UNLOCK_MUTEX();
|
---|
| 930 | return -1;
|
---|
| 931 | }
|
---|
| 932 | lastErr=E_NO_ERROR;
|
---|
| 933 | UNLOCK_MUTEX();
|
---|
| 934 | return bytesQueued + QIODevice::bytesAvailable();
|
---|
| 935 | }
|
---|
| 936 | UNLOCK_MUTEX();
|
---|
| 937 | return 0;
|
---|
| 938 | }
|
---|
| 939 |
|
---|
| 940 | /*!
|
---|
| 941 | \fn void Posix_QextSerialPort::ungetChar(char)
|
---|
| 942 | This function is included to implement the full QIODevice interface, and currently has no
|
---|
| 943 | purpose within this class. This function is meaningless on an unbuffered device and currently
|
---|
| 944 | only prints a warning message to that effect.
|
---|
| 945 | */
|
---|
| 946 | void Posix_QextSerialPort::ungetChar(char)
|
---|
| 947 | {
|
---|
| 948 | /*meaningless on unbuffered sequential device - return error and print a warning*/
|
---|
| 949 | TTY_WARNING("Posix_QextSerialPort: ungetChar() called on an unbuffered sequential device - operation is meaningless");
|
---|
| 950 | }
|
---|
| 951 |
|
---|
| 952 | /*!
|
---|
| 953 | \fn void Posix_QextSerialPort::translateError(ulong error)
|
---|
| 954 | Translates a system-specific error code to a QextSerialPort error code. Used internally.
|
---|
| 955 | */
|
---|
| 956 | void Posix_QextSerialPort::translateError(ulong error)
|
---|
| 957 | {
|
---|
| 958 | switch (error) {
|
---|
| 959 | case EBADF:
|
---|
| 960 | case ENOTTY:
|
---|
| 961 | lastErr=E_INVALID_FD;
|
---|
| 962 | break;
|
---|
| 963 |
|
---|
| 964 | case EINTR:
|
---|
| 965 | lastErr=E_CAUGHT_NON_BLOCKED_SIGNAL;
|
---|
| 966 | break;
|
---|
| 967 |
|
---|
| 968 | case ENOMEM:
|
---|
| 969 | lastErr=E_NO_MEMORY;
|
---|
| 970 | break;
|
---|
| 971 | }
|
---|
| 972 | }
|
---|
| 973 |
|
---|
| 974 | /*!
|
---|
| 975 | \fn void Posix_QextSerialPort::setDtr(bool set)
|
---|
| 976 | Sets DTR line to the requested state (high by default). This function will have no effect if
|
---|
| 977 | the port associated with the class is not currently open.
|
---|
| 978 | */
|
---|
| 979 | void Posix_QextSerialPort::setDtr(bool set)
|
---|
| 980 | {
|
---|
| 981 | LOCK_MUTEX();
|
---|
| 982 | if (isOpen()) {
|
---|
| 983 | int status;
|
---|
| 984 | ioctl(Posix_File->handle(), TIOCMGET, &status);
|
---|
| 985 | if (set) {
|
---|
| 986 | status|=TIOCM_DTR;
|
---|
| 987 | }
|
---|
| 988 | else {
|
---|
| 989 | status&=~TIOCM_DTR;
|
---|
| 990 | }
|
---|
| 991 | ioctl(Posix_File->handle(), TIOCMSET, &status);
|
---|
| 992 | }
|
---|
| 993 | UNLOCK_MUTEX();
|
---|
| 994 | }
|
---|
| 995 |
|
---|
| 996 | /*!
|
---|
| 997 | \fn void Posix_QextSerialPort::setRts(bool set)
|
---|
| 998 | Sets RTS line to the requested state (high by default). This function will have no effect if
|
---|
| 999 | the port associated with the class is not currently open.
|
---|
| 1000 | */
|
---|
| 1001 | void Posix_QextSerialPort::setRts(bool set)
|
---|
| 1002 | {
|
---|
| 1003 | LOCK_MUTEX();
|
---|
| 1004 | if (isOpen()) {
|
---|
| 1005 | int status;
|
---|
| 1006 | ioctl(Posix_File->handle(), TIOCMGET, &status);
|
---|
| 1007 | if (set) {
|
---|
| 1008 | status|=TIOCM_RTS;
|
---|
| 1009 | }
|
---|
| 1010 | else {
|
---|
| 1011 | status&=~TIOCM_RTS;
|
---|
| 1012 | }
|
---|
| 1013 | ioctl(Posix_File->handle(), TIOCMSET, &status);
|
---|
| 1014 | }
|
---|
| 1015 | UNLOCK_MUTEX();
|
---|
| 1016 | }
|
---|
| 1017 |
|
---|
| 1018 | /*!
|
---|
| 1019 | \fn unsigned long Posix_QextSerialPort::lineStatus()
|
---|
| 1020 | returns the line status as stored by the port function. This function will retrieve the states
|
---|
| 1021 | of the following lines: DCD, CTS, DSR, and RI. On POSIX systems, the following additional lines
|
---|
| 1022 | can be monitored: DTR, RTS, Secondary TXD, and Secondary RXD. The value returned is an unsigned
|
---|
| 1023 | long with specific bits indicating which lines are high. The following constants should be used
|
---|
| 1024 | to examine the states of individual lines:
|
---|
| 1025 |
|
---|
| 1026 | \verbatim
|
---|
| 1027 | Mask Line
|
---|
| 1028 | ------ ----
|
---|
| 1029 | LS_CTS CTS
|
---|
| 1030 | LS_DSR DSR
|
---|
| 1031 | LS_DCD DCD
|
---|
| 1032 | LS_RI RI
|
---|
| 1033 | LS_RTS RTS (POSIX only)
|
---|
| 1034 | LS_DTR DTR (POSIX only)
|
---|
| 1035 | LS_ST Secondary TXD (POSIX only)
|
---|
| 1036 | LS_SR Secondary RXD (POSIX only)
|
---|
| 1037 | \endverbatim
|
---|
| 1038 |
|
---|
| 1039 | This function will return 0 if the port associated with the class is not currently open.
|
---|
| 1040 | */
|
---|
| 1041 | unsigned long Posix_QextSerialPort::lineStatus()
|
---|
| 1042 | {
|
---|
| 1043 | unsigned long Status=0, Temp=0;
|
---|
| 1044 | LOCK_MUTEX();
|
---|
| 1045 | if (isOpen()) {
|
---|
| 1046 | ioctl(Posix_File->handle(), TIOCMGET, &Temp);
|
---|
| 1047 | if (Temp&TIOCM_CTS) {
|
---|
| 1048 | Status|=LS_CTS;
|
---|
| 1049 | }
|
---|
| 1050 | if (Temp&TIOCM_DSR) {
|
---|
| 1051 | Status|=LS_DSR;
|
---|
| 1052 | }
|
---|
| 1053 | if (Temp&TIOCM_RI) {
|
---|
| 1054 | Status|=LS_RI;
|
---|
| 1055 | }
|
---|
| 1056 | if (Temp&TIOCM_CD) {
|
---|
| 1057 | Status|=LS_DCD;
|
---|
| 1058 | }
|
---|
| 1059 | if (Temp&TIOCM_DTR) {
|
---|
| 1060 | Status|=LS_DTR;
|
---|
| 1061 | }
|
---|
| 1062 | if (Temp&TIOCM_RTS) {
|
---|
| 1063 | Status|=LS_RTS;
|
---|
| 1064 | }
|
---|
| 1065 | if (Temp&TIOCM_ST) {
|
---|
| 1066 | Status|=LS_ST;
|
---|
| 1067 | }
|
---|
| 1068 | if (Temp&TIOCM_SR) {
|
---|
| 1069 | Status|=LS_SR;
|
---|
| 1070 | }
|
---|
| 1071 | }
|
---|
| 1072 | UNLOCK_MUTEX();
|
---|
| 1073 | return Status;
|
---|
| 1074 | }
|
---|
| 1075 |
|
---|
| 1076 | /*!
|
---|
| 1077 | \fn qint64 Posix_QextSerialPort::readData(char * data, qint64 maxSize)
|
---|
| 1078 | Reads a block of data from the serial port. This function will read at most maxSize bytes from
|
---|
| 1079 | the serial port and place them in the buffer pointed to by data. Return value is the number of
|
---|
| 1080 | bytes actually read, or -1 on error.
|
---|
| 1081 |
|
---|
| 1082 | \warning before calling this function ensure that serial port associated with this class
|
---|
| 1083 | is currently open (use isOpen() function to check if port is open).
|
---|
| 1084 | */
|
---|
| 1085 | qint64 Posix_QextSerialPort::readData(char * data, qint64 maxSize)
|
---|
| 1086 | {
|
---|
| 1087 | LOCK_MUTEX();
|
---|
| 1088 | int retVal=0;
|
---|
| 1089 | retVal=Posix_File->read(data, maxSize);
|
---|
| 1090 | if (retVal==-1)
|
---|
| 1091 | lastErr=E_READ_FAILED;
|
---|
| 1092 | UNLOCK_MUTEX();
|
---|
| 1093 |
|
---|
| 1094 | return retVal;
|
---|
| 1095 | }
|
---|
| 1096 |
|
---|
| 1097 | /*!
|
---|
| 1098 | \fn qint64 Posix_QextSerialPort::writeData(const char * data, qint64 maxSize)
|
---|
| 1099 | Writes a block of data to the serial port. This function will write maxSize bytes
|
---|
| 1100 | from the buffer pointed to by data to the serial port. Return value is the number
|
---|
| 1101 | of bytes actually written, or -1 on error.
|
---|
| 1102 |
|
---|
| 1103 | \warning before calling this function ensure that serial port associated with this class
|
---|
| 1104 | is currently open (use isOpen() function to check if port is open).
|
---|
| 1105 | */
|
---|
| 1106 | qint64 Posix_QextSerialPort::writeData(const char * data, qint64 maxSize)
|
---|
| 1107 | {
|
---|
| 1108 | LOCK_MUTEX();
|
---|
| 1109 | int retVal=0;
|
---|
| 1110 | retVal=Posix_File->write(data, maxSize);
|
---|
| 1111 | if (retVal==-1)
|
---|
| 1112 | lastErr=E_WRITE_FAILED;
|
---|
| 1113 | UNLOCK_MUTEX();
|
---|
| 1114 |
|
---|
| 1115 | flush();
|
---|
| 1116 | return retVal;
|
---|
| 1117 | }
|
---|