82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
/*
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* Copyright (c) 2011 Petr Stetiar <ynezz@true.cz>, Gaben Ltd.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "librs232/qrs232.h"
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QRS232::QRS232()
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{
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m_open = false;
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}
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QRS232::~QRS232()
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{
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close();
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}
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bool QRS232::isOpen()
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{
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return m_open;
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}
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bool QRS232::open(QString & port, enum rs232_baud_e baud)
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{
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m_port = rs232_init();
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rs232_set_device(m_port, port.toLatin1().data());
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rs232_set_baud(m_port, baud);
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unsigned int ret = rs232_open(m_port);
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if (ret == RS232_ERR_NOERROR) {
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m_open = true;
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return true;
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}
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return false;
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}
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QString QRS232::readTimeout(int max, int timeout)
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{
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unsigned int len = 0;
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unsigned char *buf = (unsigned char *)malloc(max+1);
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if (buf == NULL)
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return QString();
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memset(buf, 0, max+1);
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unsigned int ret = rs232_read_timeout(m_port, buf, max, &len, timeout);
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if ((ret == RS232_ERR_NOERROR) && (len > 0)) {
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QString data = QString::fromLatin1((const char *)buf, len);
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free(buf);
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return data;
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}
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free(buf);
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return QString();
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}
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void QRS232::close()
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{
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rs232_close(m_port);
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m_open = false;
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m_port = NULL;
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}
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