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// $Id: RlinkPortTerm.cpp 435 2011-12-04 20:15:25Z mueller $
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//
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// Copyright 2011- by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
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//
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// This program is free software; you may redistribute and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation, either version 2, or at your option any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for complete details.
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//
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// Revision History:
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// Date Rev Version Comment
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// 2011-12-04 435 1.0.2 Open(): add cts attr, hw flow control now optional
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// 2011-07-04 388 1.0.1 add termios readback and verification
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// 2011-03-27 374 1.0 Initial version
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// ---------------------------------------------------------------------------
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/*!
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\file
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\version $Id: RlinkPortTerm.cpp 435 2011-12-04 20:15:25Z mueller $
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\brief Implemenation of RlinkPortTerm.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <unistd.h>
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#include <termios.h>
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#include "RlinkPortTerm.hpp"
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#include "librtools/RosFill.hpp"
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#include "librtools/RosPrintf.hpp"
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using namespace std;
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using namespace Retro;
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/*!
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\class Retro::RlinkPortTerm
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\brief FIXME_text
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*/
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//------------------------------------------+-----------------------------------
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//! Default constructor
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RlinkPortTerm::RlinkPortTerm()
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: RlinkPort()
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{}
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//------------------------------------------+-----------------------------------
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//! Destructor
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RlinkPortTerm::~RlinkPortTerm()
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{
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if (IsOpen()) RlinkPortTerm::Close();
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}
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//------------------------------------------+-----------------------------------
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//! FIXME_text
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bool RlinkPortTerm::Open(const std::string& url, RerrMsg& emsg)
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{
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if (IsOpen()) Close();
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if (!ParseUrl(url, "|baud=|break|cts|", emsg)) return false;
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speed_t speed = B115200;
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string baud;
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if (UrlFindOpt("baud", baud)) {
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speed = B0;
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if (baud=="9600") speed = B9600;
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if (baud=="19200" || baud=="19k") speed = B19200;
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if (baud=="38400" || baud=="38k") speed = B38400;
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if (baud=="57600" || baud=="57k") speed = B57600;
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if (baud=="115200" || baud=="115k") speed = B115200;
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if (baud=="230400" || baud=="230k") speed = B230400;
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if (baud=="460800" || baud=="460k") speed = B460800;
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if (baud=="500000" || baud=="500k") speed = B500000;
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if (baud=="921600" || baud=="921k") speed = B921600;
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if (baud=="1000000" || baud=="1M") speed = B1000000;
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if (baud=="2000000" || baud=="2M") speed = B2000000;
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if (baud=="3000000" || baud=="3M") speed = B3000000;
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if (speed == B0) {
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emsg.Init("RlinkPortTerm::Open()",
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string("invalid baud rate \"") + baud + string("\" specified"));
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return false;
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}
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}
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int fd;
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fd = open(fPath.c_str(), O_RDWR|O_NOCTTY);
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if (fd < 0) {
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emsg.InitErrno("RlinkPortTerm::Open()",
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string("open() for \"") + fPath + string("\" failed: "),
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errno);
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return false;
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}
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if (!isatty(fd)) {
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emsg.Init("RlinkPortTerm::Open()",
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string("isatty() check for \"") + fPath +
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string("\" failed: not a TTY"));
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close(fd);
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return false;
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}
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if (tcgetattr(fd, &fTiosOld) != 0) {
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emsg.InitErrno("RlinkPortTerm::Open()",
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string("tcgetattr() for \"") + fPath + string("\" failed: "),
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errno);
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close(fd);
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return false;
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}
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fTiosNew = fTiosOld;
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fTiosNew.c_iflag = IGNBRK | // ignore breaks on input
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IGNPAR; // ignore parity errors
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fTiosNew.c_oflag = 0;
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fTiosNew.c_cflag = CS8 | // 8 bit chars
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CSTOPB | // 2 stop bits
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CREAD | // enable receiver
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CLOCAL; // ignore modem control
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if (UrlFindOpt("cts")) {
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fTiosNew.c_cflag |= CRTSCTS; // enable hardware flow control
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}
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fTiosNew.c_lflag = 0;
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if (cfsetspeed(&fTiosNew, speed) != 0) {
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emsg.InitErrno("RlinkPortTerm::Open()",
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string("cfsetspeed() for \"") + baud + string("\" failed: "),
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errno);
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close(fd);
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return false;
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}
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fTiosNew.c_cc[VEOF] = 0; // undef
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fTiosNew.c_cc[VEOL] = 0; // undef
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fTiosNew.c_cc[VERASE] = 0; // undef
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fTiosNew.c_cc[VINTR] = 0; // undef
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fTiosNew.c_cc[VKILL] = 0; // undef
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fTiosNew.c_cc[VQUIT] = 0; // undef
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fTiosNew.c_cc[VSUSP] = 0; // undef
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fTiosNew.c_cc[VSTART] = 0; // undef
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fTiosNew.c_cc[VSTOP] = 0; // undef
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fTiosNew.c_cc[VMIN] = 1; // wait for 1 char
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fTiosNew.c_cc[VTIME] = 0; //
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if (tcsetattr(fd, TCSANOW, &fTiosNew) != 0) {
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emsg.InitErrno("RlinkPortTerm::Open()",
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string("tcsetattr() for \"") + fPath + string("\" failed: "),
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errno);
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close(fd);
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return false;
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}
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// tcsetattr() returns success if any of the requested changes could be
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// successfully carried out. Therefore the termios structure is read back
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// and verified.
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struct termios tios;
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if (tcgetattr(fd, &tios) != 0) {
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emsg.InitErrno("RlinkPortTerm::Open()",
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string("2nd tcgetattr() for \"") + fPath +
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string("\" failed: "),
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errno);
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close(fd);
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return false;
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}
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const char* pmsg = 0;
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if (tios.c_iflag != fTiosNew.c_iflag) pmsg = "c_iflag";
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if (tios.c_oflag != fTiosNew.c_oflag) pmsg = "c_oflag";
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if (tios.c_cflag != fTiosNew.c_cflag) pmsg = "c_cflag";
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if (tios.c_lflag != fTiosNew.c_lflag) pmsg = "c_lflag";
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if (cfgetispeed(&tios) != speed) pmsg = "ispeed";
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if (cfgetospeed(&tios) != speed) pmsg = "ospeed";
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for (int i=0; i<NCCS; i++) {
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if (tios.c_cc[i] != fTiosNew.c_cc[i]) pmsg = "c_cc char";
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}
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if (pmsg) {
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emsg.Init("RlinkPortTerm::Open()",
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string("tcsetattr() failed to set") +
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string(pmsg));
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close(fd);
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return false;
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}
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fFdWrite = fd;
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fFdRead = fd;
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fIsOpen = true;
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if (UrlFindOpt("break")) {
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if (tcsendbreak(fd, 0) != 0) {
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emsg.InitErrno("RlinkPortTerm::Open()",
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string("tcsendbreak() for \"") + fPath +
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string("\" failed: "), errno);
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Close();
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return false;
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}
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uint8_t buf[1];
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buf[0] = 0x80;
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if (Write(buf, 1, emsg) != 1) {
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Close();
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return false;
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}
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}
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return true;
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}
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//------------------------------------------+-----------------------------------
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//! FIXME_text
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void RlinkPortTerm::Close()
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{
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if (fIsOpen) {
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if (fFdWrite >= 0) {
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tcflush(fFdWrite, TCIOFLUSH);
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tcsetattr(fFdWrite, TCSANOW, &fTiosOld);
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}
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RlinkPort::Close();
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}
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return;
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}
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//------------------------------------------+-----------------------------------
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//! FIXME_text
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void RlinkPortTerm::Dump(std::ostream& os, int ind, const char* text) const
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{
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RosFill bl(ind);
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os << bl << (text?text:"--") << "RlinkPortTerm @ " << this << endl;
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DumpTios(os, ind, "fTiosOld", fTiosOld);
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DumpTios(os, ind, "fTiosNew", fTiosNew);
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RlinkPort::Dump(os, ind+2, "");
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return;
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}
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//------------------------------------------+-----------------------------------
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//! FIXME_text
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void RlinkPortTerm::DumpTios(std::ostream& os, int ind, const std::string& name,
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const struct termios& tios) const
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{
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| 256 |
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RosFill bl(ind+2);
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os << bl << name << ":" << endl;
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| 258 |
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os << bl << " c_iflag : " << RosPrintf(tios.c_iflag,"x0",8);
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if (tios.c_iflag & BRKINT) os << " BRKINT";
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if (tios.c_iflag & ICRNL) os << " ICRNL ";
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if (tios.c_iflag & IGNBRK) os << " IGNBRK";
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if (tios.c_iflag & IGNCR) os << " IGNCR ";
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if (tios.c_iflag & IGNPAR) os << " IGNPAR";
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if (tios.c_iflag & INLCR) os << " INLCR ";
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if (tios.c_iflag & INPCK) os << " INPCK ";
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if (tios.c_iflag & ISTRIP) os << " ISTRIP";
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| 267 |
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if (tios.c_iflag & IXOFF) os << " IXOFF ";
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| 268 |
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if (tios.c_iflag & IXON) os << " IXON ";
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| 269 |
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if (tios.c_iflag & PARMRK) os << " PARMRK";
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| 270 |
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os << endl;
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| 271 |
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| 272 |
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os << bl << " c_oflag : " << RosPrintf(tios.c_oflag,"x0",8);
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| 273 |
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if (tios.c_oflag & OPOST) os << " OPOST ";
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| 274 |
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os << endl;
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| 275 |
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| 276 |
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os << bl << " c_cflag : " << RosPrintf(tios.c_cflag,"x0",8);
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| 277 |
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if (tios.c_cflag & CLOCAL) os << " CLOCAL";
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| 278 |
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if (tios.c_cflag & CREAD) os << " CREAD ";
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| 279 |
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if ((tios.c_cflag & CSIZE) == CS5) os << " CS5 ";
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| 280 |
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if ((tios.c_cflag & CSIZE) == CS6) os << " CS6 ";
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| 281 |
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if ((tios.c_cflag & CSIZE) == CS7) os << " CS7 ";
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| 282 |
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if ((tios.c_cflag & CSIZE) == CS8) os << " CS8 ";
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| 283 |
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if (tios.c_cflag & CSTOPB) os << " CSTOPB";
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| 284 |
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if (tios.c_cflag & HUPCL) os << " HUPCL ";
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| 285 |
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if (tios.c_cflag & PARENB) os << " PARENB";
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| 286 |
|
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if (tios.c_cflag & PARODD) os << " PARODD";
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| 287 |
|
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speed_t speed = cfgetispeed(&tios);
|
| 288 |
|
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int baud = 0;
|
| 289 |
|
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if (speed == B9600) baud = 9600;
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| 290 |
|
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if (speed == B19200) baud = 19200;
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| 291 |
|
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if (speed == B38400) baud = 38400;
|
| 292 |
|
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if (speed == B57600) baud = 57600;
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| 293 |
|
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if (speed == B115200) baud = 115200;
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| 294 |
|
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if (speed == B230400) baud = 230400;
|
| 295 |
|
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if (speed == B460800) baud = 460800;
|
| 296 |
|
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if (speed == B500000) baud = 500000;
|
| 297 |
|
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if (speed == B921600) baud = 921600;
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| 298 |
|
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if (speed == B1000000) baud = 1000000;
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| 299 |
|
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if (speed == B2000000) baud = 2000000;
|
| 300 |
|
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if (speed == B3000000) baud = 3000000;
|
| 301 |
|
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os << " speed: " << RosPrintf(baud, "d", 7);
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| 302 |
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os << endl;
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| 303 |
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| 304 |
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os << bl << " c_lflag : " << RosPrintf(tios.c_lflag,"x0",8);
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| 305 |
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if (tios.c_lflag & ECHO) os << " ECHO ";
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| 306 |
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if (tios.c_lflag & ECHOE) os << " ECHOE ";
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| 307 |
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if (tios.c_lflag & ECHOK) os << " ECHOK ";
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| 308 |
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if (tios.c_lflag & ECHONL) os << " ECHONL";
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| 309 |
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if (tios.c_lflag & ICANON) os << " ICANON";
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| 310 |
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if (tios.c_lflag & IEXTEN) os << " IEXTEN";
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| 311 |
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if (tios.c_lflag & ISIG) os << " ISIG ";
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| 312 |
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if (tios.c_lflag & NOFLSH) os << " NOFLSH";
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| 313 |
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if (tios.c_lflag & TOSTOP) os << " TOSTOP";
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| 314 |
|
|
os << endl;
|
| 315 |
|
|
|
| 316 |
|
|
os << bl << " c_cc : " << endl;
|
| 317 |
|
|
os << bl << " [VEOF] : " << RosPrintf(tios.c_cc[VEOF],"o",3);
|
| 318 |
|
|
os << " [VEOL] : " << RosPrintf(tios.c_cc[VEOL],"o",3);
|
| 319 |
|
|
os << " [VERASE]: " << RosPrintf(tios.c_cc[VERASE],"o",3);
|
| 320 |
|
|
os << " [VINTR] : " << RosPrintf(tios.c_cc[VINTR],"o",3) << endl;
|
| 321 |
|
|
os << bl << " [VKILL] : " << RosPrintf(tios.c_cc[VKILL],"o",3);
|
| 322 |
|
|
os << " [VQUIT] : " << RosPrintf(tios.c_cc[VQUIT],"o",3);
|
| 323 |
|
|
os << " [VSUSP] : " << RosPrintf(tios.c_cc[VSUSP],"o",3);
|
| 324 |
|
|
os << " [VSTART]: " << RosPrintf(tios.c_cc[VSTART],"o",3) << endl;
|
| 325 |
|
|
os << bl << " [VSTOP] : " << RosPrintf(tios.c_cc[VSTOP],"o",3);
|
| 326 |
|
|
os << " [VMIN] : " << RosPrintf(tios.c_cc[VMIN],"o",3);
|
| 327 |
|
|
os << " [VTIME] : " << RosPrintf(tios.c_cc[VTIME],"o",3) << endl;
|
| 328 |
|
|
|
| 329 |
|
|
return;
|
| 330 |
|
|
}
|
| 331 |
|
|
|
| 332 |
|
|
//------------------------------------------+-----------------------------------
|
| 333 |
|
|
#if (defined(Retro_NoInline) || defined(Retro_RlinkPortTerm_NoInline))
|
| 334 |
|
|
#define inline
|
| 335 |
|
|
//#include "RlinkPortTerm.ipp"
|
| 336 |
|
|
#undef inline
|
| 337 |
|
|
#endif
|
