116 lines
3.0 KiB
C++
116 lines
3.0 KiB
C++
/*
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Copyright 2019 Wolfgang Thaller.
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This file is part of Retro68.
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Retro68 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 3 of the License, or
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(at your option) any later version.
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Retro68 is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Retro68. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "MacSerialStream.h"
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#include <Serial.h>
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#include <Devices.h>
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#include <string.h>
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MacSerialStream::MacSerialStream(int port, int baud)
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: port(port), curBaud(baud)
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{
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open();
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}
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void MacSerialStream::close()
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{
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if(inRefNum == 0)
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return;
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SerSetBuf(inRefNum, NULL, 0);
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CloseDriver(inRefNum);
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CloseDriver(outRefNum);
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inRefNum = outRefNum = 0;
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}
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void MacSerialStream::open()
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{
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OpenDriver(port ? "\p.BOut" : "\p.AOut", &outRefNum);
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OpenDriver(port ? "\p.BIn" : "\p.AIn", &inRefNum);
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SerSetBuf(inRefNum, inputBuffer, kInputBufferSize);
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SerShk shk;
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memset(&shk, 0, sizeof(shk));
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shk.fCTS = true;
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Control(outRefNum, kSERDHandshake, &shk);
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setBaud(curBaud);
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}
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MacSerialStream::~MacSerialStream()
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{
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close();
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}
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void MacSerialStream::write(const void* p, size_t n)
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{
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ParamBlockRec pb;
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memset(&pb, 0, sizeof(pb));
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pb.ioParam.ioRefNum = outRefNum;
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pb.ioParam.ioBuffer = (Ptr)p;
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pb.ioParam.ioReqCount = n;
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OSErr err = PBWriteSync(&pb);
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}
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void MacSerialStream::idle()
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{
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long count = 0;
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SerGetBuf(inRefNum, &count);
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while(count > 0)
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{
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long count1 = count > kReadBufferSize ? kReadBufferSize : count;
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ParamBlockRec pb;
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memset(&pb, 0, sizeof(pb));
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pb.ioParam.ioRefNum = inRefNum;
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pb.ioParam.ioBuffer = (Ptr)&readBuffer;
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pb.ioParam.ioReqCount = count1;
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OSErr err = PBReadSync(&pb);
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if(err)
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return;
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count -= count1;
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notifyReceive((uint8_t*)readBuffer, count1);
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}
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}
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void MacSerialStream::setBaud(int baud)
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{
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curBaud = baud;
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short baudval = 0;
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switch(baud)
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{
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case 9600: baudval = baud9600; break;
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case 14400: baudval = baud14400; break;
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case 19200: baudval = baud19200; break;
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case 28800: baudval = baud28800; break;
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case 38400: baudval = baud38400; break;
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case 57600: baudval = baud57600; break;
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case 115200: baudval = 0; break;
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case 230400: baudval = 0; break;
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}
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SerReset(outRefNum, baudval | data8 | noParity | stop10);
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if(baud == 115200)
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Control(outRefNum, kSERD115KBaud, nullptr);
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else if(baud == 230400)
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Control(outRefNum, kSERD230KBaud, nullptr);
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}
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