/*    Copyright 2019 Wolfgang Thaller.     This file is part of Retro68.     Retro68 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 3 of the License, or    (at your option) any later version.     Retro68 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 Retro68.  If not, see <http://www.gnu.org/licenses/>.*/ #include "MacSerialStream.h" #include <Serial.h>#include <Devices.h> #include <string.h> MacSerialStream::MacSerialStream(int port, int baud)    : port(port), curBaud(baud){    open();} void MacSerialStream::close(){    if(inRefNum == 0)        return;    SerSetBuf(inRefNum, NULL, 0);        CloseDriver(inRefNum);    CloseDriver(outRefNum);    inRefNum = outRefNum = 0;} void MacSerialStream::open(){    OpenDriver(port ? "\p.BOut" : "\p.AOut", &outRefNum);    OpenDriver(port ? "\p.BIn" : "\p.AIn", &inRefNum);    SerSetBuf(inRefNum, inputBuffer, kInputBufferSize);     SerShk shk;    memset(&shk, 0, sizeof(shk));    shk.fCTS = true;    Control(outRefNum, kSERDHandshake, &shk);        setBaud(curBaud);} MacSerialStream::~MacSerialStream(){    close();} void MacSerialStream::write(const void* p, size_t n){    ParamBlockRec pb;    memset(&pb, 0, sizeof(pb));    pb.ioParam.ioRefNum = outRefNum;        pb.ioParam.ioBuffer = (Ptr)p;        pb.ioParam.ioReqCount = n;    /*OSErr err =*/ PBWriteSync(&pb);} void MacSerialStream::idle(){    long count = 0;    SerGetBuf(inRefNum, &count);    while(count > 0)    {        long count1 = count > kReadBufferSize ? kReadBufferSize : count;        ParamBlockRec pb;        memset(&pb, 0, sizeof(pb));        pb.ioParam.ioRefNum = inRefNum;        pb.ioParam.ioBuffer = (Ptr)&readBuffer;        pb.ioParam.ioReqCount = count1;        OSErr err = PBReadSync(&pb);        if(err)            return;        count -= count1;         notifyReceive((uint8_t*)readBuffer, count1);    }} void MacSerialStream::setBaud(int baud){    curBaud = baud;    short baudval = 0;    switch(baud)    {        case 9600:      baudval = baud9600; break;        case 14400:     baudval = baud14400; break;        case 19200:     baudval = baud19200; break;        case 28800:     baudval = baud28800; break;        case 38400:     baudval = baud38400; break;        case 57600:     baudval = baud57600; break;        case 115200:    baudval = 0; break;        case 230400:    baudval = 0; break;    }    SerReset(outRefNum, baudval | data8 | noParity | stop10);     if(baud == 115200)        Control(outRefNum, kSERD115KBaud, nullptr);    else if(baud == 230400)        Control(outRefNum, kSERD230KBaud, nullptr);}