Initial revision.

Serial/Makefile.am

@@ -0,0 +1,13 @@
+bin_PROGRAMS = testserial
+
+noinst_LIBRARIES = libSerial.a
+
+libSerial_a_SOURCES = serial.cxx serial.hxx
+
+testserial_SOURCES = testserial.cxx
+
+testserial_LDADD = \
+	$(top_builddir)/Lib/Serial/libSerial.a \
+	$(top_builddir)/Lib/Debug/libDebug.a
+
+INCLUDES += -I$(top_builddir) -I$(top_builddir)/Lib

Serial/serial.cxx

@@ -0,0 +1,162 @@
+// serial.cxx -- Unix serial I/O support
+//
+// Written by Curtis Olson, started November 1998.
+//
+// Copyright (C) 1998  Curtis L. Olson - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+// (Log is kept at end of this file)
+
+
+#include <termios.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <Debug/logstream.hxx>
+
+#include "serial.hxx"
+
+
+fgSERIAL::fgSERIAL() {
+    dev_open = false;
+}
+
+fgSERIAL::fgSERIAL(const string& device, int baud) {
+    open_port(device);
+    
+    if ( dev_open ) {
+	set_baud(baud);
+    }
+}
+
+fgSERIAL::~fgSERIAL() {
+    close(fd);
+}
+
+bool fgSERIAL::open_port(const string& device) {
+    if ( (fd = open(device.c_str(), O_RDWR | O_NONBLOCK)) == -1 ) {
+	FG_LOG( FG_SERIAL, FG_ALERT, "Cannot open " << device
+		<< " for serial I/O" );
+	return false;
+    } else {
+	dev_open = true;
+	return true;
+    }
+}
+
+bool fgSERIAL::set_baud(int baud) {
+    struct termios config;
+    speed_t speed;
+
+    cout << "attempting to set baud rate to: " << baud << endl;
+
+    if ( tcgetattr( fd, &config ) != 0 ) {
+	FG_LOG( FG_SERIAL, FG_ALERT, "Unable to poll port settings" );
+	return false;
+    }
+
+    if ( baud == 300 ) {
+	speed = B300;
+    } else if ( baud == 1200 ) {
+	speed = B1200;
+    } else if ( baud == 2400 ) {
+	speed = B2400;
+    } else if ( baud == 4800 ) {
+	speed = B4800;
+    } else if ( baud == 9600 ) {
+	speed = B9600;
+    } else if ( baud == 19200 ) {
+	speed = B19200;
+    } else if ( baud == 38400 ) {
+	speed = B38400;
+    } else if ( baud == 57600 ) {
+	speed = B57600;
+    } else if ( baud == 115200 ) {
+	speed = B115200;
+    } else if ( baud == 230400 ) {
+	speed = B230400;
+    } else {
+	FG_LOG( FG_SERIAL, FG_ALERT, "Unsupported baud rate " << baud );
+	return false;
+    }
+
+    if ( cfsetispeed( &config, speed ) != 0 ) {
+	FG_LOG( FG_SERIAL, FG_ALERT, "Problem setting input baud rate" );
+	return false;
+    }
+
+    if ( cfsetospeed( &config, speed ) != 0 ) {
+	FG_LOG( FG_SERIAL, FG_ALERT, "Problem setting output baud rate" );
+	return false;
+    }
+
+    if ( tcsetattr( fd, TCSANOW, &config ) != 0 ) {
+	FG_LOG( FG_SERIAL, FG_ALERT, "Unable to update port settings" );
+	return false;
+    }
+
+    cout << "successfully set baud to " << baud << endl;
+
+    return true;
+}
+
+string fgSERIAL::read_port() {
+    const int max_count = 1024;
+    char buffer[max_count+1];
+    int count;
+    string result;
+
+    count = read(fd, buffer, max_count);
+    // cout << "read " << count << " bytes" << endl;
+
+    if ( count < 0 ) {
+	// error condition
+	if ( errno != EAGAIN ) {
+	    FG_LOG( FG_SERIAL, FG_ALERT, 
+		    "Serial I/O on read, error number = " << errno );
+	}
+
+	return "";
+    } else {
+	buffer[count] = '\0';
+	result = buffer;
+
+	return result;
+    }
+}
+
+int fgSERIAL::write_port(const string& value) {
+    int count;
+
+    count = write(fd, value.c_str(), value.length());
+    // cout << "write '" << value << "'  " << count << " bytes" << endl;
+
+    if ( (int)count != (int)value.length() ) {
+	FG_LOG( FG_SERIAL, FG_ALERT,
+		"Serial I/O on write, error number = " << errno );
+    }
+
+    return count;
+}
+
+
+// $Log$
+// Revision 1.1  1998/11/16 13:53:02  curt
+// Initial revision.
+//

Serial/serial.hxx

@@ -0,0 +1,71 @@
+// serial.hxx -- Unix serial I/O support
+//
+// Written by Curtis Olson, started November 1998.
+//
+// Copyright (C) 1998  Curtis L. Olson - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+// (Log is kept at end of this file)
+
+
+#ifndef _SERIAL_HXX
+#define _SERIAL_HXX
+
+
+#ifndef __cplusplus
+# error This library requires C++
+#endif
+
+
+#include <string>
+
+// if someone know how to do this all with C++ streams let me know
+#include <stdio.h>
+
+
+class fgSERIAL
+{
+
+private:
+
+    int fd;
+    bool dev_open;
+
+public:
+
+    fgSERIAL();
+    fgSERIAL(const string& device, int baud);
+
+    ~fgSERIAL();
+
+    bool open_port(const string& device);
+    bool close_port();
+    bool set_baud(int baud);
+    string read_port();
+    int write_port(const string& value);
+
+    inline bool is_enabled() { return dev_open; }
+};
+
+
+#endif // _SERIAL_HXX
+
+
+// $Log$
+// Revision 1.1  1998/11/16 13:53:02  curt
+// Initial revision.
+//

Serial/testserial.cxx

@@ -0,0 +1,17 @@
+#include <string>
+
+#include "serial.hxx"
+
+main () {
+    fgSERIAL port( "/dev/ttyS1", 4800);
+    string value;
+
+    port.write_port("ATDT 626-9800\n");
+
+    while ( true ) {
+	value = port.read_port();
+	if ( value.length() ) {
+	    cout << "-> " << value << endl;
+	}
+    }
+}