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Validate bauds and add the ability to set custom bauds.

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This commit is contained in:
John Harrison 2012-01-23 16:17:57 -06:00
parent c5de0744e6
commit 9b0fdfc2f5
1 changed files with 127 additions and 6 deletions
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133
src/impl/unix.cc
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@ -31,6 +31,7 @@ using serial::SerialExecption;
using serial::PortNotOpenedException; using serial::PortNotOpenedException;
using serial::IOException; using serial::IOException;
Serial::SerialImpl::SerialImpl (const string &port, unsigned long baudrate, Serial::SerialImpl::SerialImpl (const string &port, unsigned long baudrate,
long timeout, bytesize_t bytesize, long timeout, bytesize_t bytesize,
parity_t parity, stopbits_t stopbits, parity_t parity, stopbits_t stopbits,
@ -114,8 +115,131 @@ Serial::SerialImpl::reconfigurePort ()
#endif #endif
// setup baud rate // setup baud rate
// TODO(ash_git): validate baud rate bool custom_baud = false;
cfsetspeed(&options, baudrate_); speed_t baud;
switch (baudrate_)
{
#ifdef B0
case 0: baud = B0; break;
#endif
#ifdef B50
case 50: baud = B50; break;
#endif
#ifdef B75
case 75: baud = B75; break;
#endif
#ifdef B110
case 110: baud = B110; break;
#endif
#ifdef B134
case 134: baud = B134; break;
#endif
#ifdef B150
case 150: baud = B150; break;
#endif
#ifdef B200
case 200: baud = B200; break;
#endif
#ifdef B300
case 300: baud = B300; break;
#endif
#ifdef B600
case 600: baud = B600; break;
#endif
#ifdef B1200
case 1200: baud = B1200; break;
#endif
#ifdef B1800
case 1800: baud = B1800; break;
#endif
#ifdef B2400
case 2400: baud = B2400; break;
#endif
#ifdef B4800
case 4800: baud = B4800; break;
#endif
#ifdef B7200
case 7200: baud = B7200; break;
#endif
#ifdef B9600
case 9600: baud = B9600; break;
#endif
#ifdef B14400
case 14400: baud = B14400; break;
#endif
#ifdef B19200
case 19200: baud = B19200; break;
#endif
#ifdef B28800
case 28800: baud = B28800; break;
#endif
#ifdef B57600
case 57600: baud = B57600; break;
#endif
#ifdef B76800
case 76800: baud = B76800; break;
#endif
#ifdef B38400
case 38400: baud = B38400; break;
#endif
#ifdef B115200
case 115200: baud = B115200; break;
#endif
#ifdef B128000
case 128000: baud = B128000; break;
#endif
#ifdef B153600
case 153600: baud = B153600; break;
#endif
#ifdef B230400
case 230400: baud = B230400; break;
#endif
#ifdef B256000
case 256000: baud = B256000; break;
#endif
#ifdef B460800
case 460800: baud = B460800; break;
#endif
#ifdef B921600
case 921600: baud = B921600; break;
#endif
default:
custom_baud = true;
// Mac OS X 10.x Support
#if defined(__APPLE__) && defined(__MACH__)
#define IOSSIOSPEED _IOW('T', 2, speed_t)
int new_baud = static_cast<int> (baudrate_);
if (ioctl (fd_, IOSSIOSPEED, &new_baud, 1) < 0)
{
throw IOException (errno);
}
// Linux Support
#elif defined(__linux__)
struct serial_struct ser;
ioctl(fd_, TIOCGSERIAL, &ser);
// set custom divisor
ser.custom_divisor = ser.baud_base / baudrate;
// update flags
ser.flags &= ~ASYNC_SPD_MASK;
ser.flags |= ASYNC_SPD_CUST;
if (ioctl(fd_, TIOCSSERIAL, buf) < 0)
{
throw IOException (errno);
}
#else
throw invalid_argument ("OS does not currently support custom bauds");
#endif
}
if (custom_baud == false)
{
#ifdef _BSD_SOURCE
::cfsetspeed(&options, baud);
#else
::cfsetispeed(&options, baud);
::cfsetospeed(&options, baud);
#endif
}
// setup char len // setup char len
options.c_cflag &= (unsigned long) ~CSIZE; options.c_cflag &= (unsigned long) ~CSIZE;
@ -333,10 +457,7 @@ Serial::SerialImpl::write (const string &data)
break; break;
} }
} }
if (bytes_written != static_cast<ssize_t> (data.length ()))
{
throw IOException ("Write did not complete");
}
return static_cast<size_t> (bytes_written); return static_cast<size_t> (bytes_written);
} }