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77 lines
2.5 KiB
77 lines
2.5 KiB
15 years ago
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/***************************************************************************
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* Copyright (C) 2006 Nicolas Hadacek <hadacek@kde.org> *
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* Copyright (C) 2002-2003 Stephen Landamore <stephen@landamore.com> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#include "icd1_serial.h"
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#include <qdatetime.h>
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#include "common/global/global.h"
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#include "common/common/misc.h"
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#include "common/common/number.h"
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//-----------------------------------------------------------------------------
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Icd1::SerialPort::SerialPort(const QString &device, Log::Base &log)
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: Port::Serial(device, NeedDrain | NeedFlush, log)
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{}
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bool Icd1::SerialPort::open()
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{
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if ( !Port::Serial::open() ) return false;
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return setMode(NoInputFlag, ByteSize8 | IgnoreControlLines | EnableReceiver, S57600, 0);
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}
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bool Icd1::SerialPort::reset()
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{
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// reset
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setPinOn(RTS, false, Port::PositiveLogic);
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setPinOn(DTR, false, Port::PositiveLogic);
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Port::msleep(10);
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// remove reset
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setPinOn(RTS, true, Port::PositiveLogic);
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setPinOn(DTR, true, Port::PositiveLogic);
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Port::msleep(10);
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return true;
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}
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bool Icd1::SerialPort::synchronize()
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{
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if ( !setPinOn(RTS, false, Port::PositiveLogic) ) return false;
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QTime time;
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time.start();
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for (;;) {
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bool bit;
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if ( !readPin(CTS, Port::PositiveLogic, bit) ) return false;
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if ( !bit) break;
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if ( uint(time.elapsed())>3000 ) { // 3 seconds
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log(Log::LineType::Error, i18n("Timeout synchronizing."));
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return false;
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}
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}
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return setPinOn(RTS, true, Port::PositiveLogic);
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}
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bool Icd1::SerialPort::sendCommand(uint cmd)
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{
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Q_ASSERT( cmd<=0xFFFF );
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synchronize();
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char c[7] = "$XXXX\r";
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QString cs = toHex(cmd, 4);
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log(Log::DebugLevel::Extra, QString("Send command: %1").arg(toPrintable(cs, PrintAlphaNum)));
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c[1] = cs[0].latin1();
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c[2] = cs[1].latin1();
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c[3] = cs[2].latin1();
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c[4] = cs[3].latin1();
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return send(c, 7);
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}
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bool Icd1::SerialPort::receiveByte(char &byte, bool synchronizeBefore, uint timeout)
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{
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if ( synchronizeBefore && !synchronize() ) return false;
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return receiveChar(byte, timeout);
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}
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