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Added handling of serial port DCB for Windows #316

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Added handling of serial port DCB for Windows #316

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78 changes: 46 additions & 32 deletions src/ptt.c
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Original file line number Diff line number Diff line change
Expand Up @@ -180,17 +180,51 @@ typedef int HANDLE;

#if __WIN32__

#define RTS_ON(fd) EscapeCommFunction(fd,SETRTS);
#define RTS_OFF(fd) EscapeCommFunction(fd,CLRRTS);
#define DTR_ON(fd) EscapeCommFunction(fd,SETDTR);
#define DTR_OFF(fd) EscapeCommFunction(fd,CLRDTR);
void setRTS(HANDLE fd, unsigned char state)
{
if (!EscapeCommFunction(fd, state ? SETRTS : CLRRTS)) {
return;
}

DCB dcb;
if (!GetCommState(fd, &dcb)) {
return;
}

dcb.fRtsControl = state ? RTS_CONTROL_ENABLE : RTS_CONTROL_DISABLE;

SetCommState(fd, &dcb);
}

void setDTR(HANDLE fd, unsigned char state)
{
if (!EscapeCommFunction(fd, state ? SETDTR : CLRDTR)) {
return;
}

DCB dcb;
if (!GetCommState(fd, &dcb)) {
return;
}

dcb.fDtrControl = state ? DTR_CONTROL_ENABLE : DTR_CONTROL_DISABLE;

SetCommState(fd, &dcb);
}

#else

#define RTS_ON(fd) { int stuff; ioctl (fd, TIOCMGET, &stuff); stuff |= TIOCM_RTS; ioctl (fd, TIOCMSET, &stuff); }
#define RTS_OFF(fd) { int stuff; ioctl (fd, TIOCMGET, &stuff); stuff &= ~TIOCM_RTS; ioctl (fd, TIOCMSET, &stuff); }
#define DTR_ON(fd) { int stuff; ioctl (fd, TIOCMGET, &stuff); stuff |= TIOCM_DTR; ioctl (fd, TIOCMSET, &stuff); }
#define DTR_OFF(fd) { int stuff; ioctl (fd, TIOCMGET, &stuff); stuff &= ~TIOCM_DTR; ioctl (fd, TIOCMSET, &stuff); }
void setRTS(HANDLE fd, unsigned char state)
{
int bit = TIOCM_RTS;
ioctl(fd, state ? TIOCMBIS : TIOCMBIC, &bit);
}

void setDTR(HANDLE fd, unsigned char state)
{
int bit = TIOCM_DTR;
ioctl(fd, state ? TIOCMBIS : TIOCMBIC, &bit);
}

#define LPT_IO_ADDR 0x378

Expand Down Expand Up @@ -1182,21 +1216,11 @@ void ptt_set (int ot, int chan, int ptt_signal)

if (save_audio_config_p->achan[chan].octrl[ot].ptt_line == PTT_LINE_RTS) {

if (ptt) {
RTS_ON(ptt_fd[chan][ot]);
}
else {
RTS_OFF(ptt_fd[chan][ot]);
}
setRTS(ptt_fd[chan][ot], ptt);
}
else if (save_audio_config_p->achan[chan].octrl[ot].ptt_line == PTT_LINE_DTR) {

if (ptt) {
DTR_ON(ptt_fd[chan][ot]);
}
else {
DTR_OFF(ptt_fd[chan][ot]);
}
setDTR(ptt_fd[chan][ot], ptt);
}

/*
Expand All @@ -1205,21 +1229,11 @@ void ptt_set (int ot, int chan, int ptt_signal)

if (save_audio_config_p->achan[chan].octrl[ot].ptt_line2 == PTT_LINE_RTS) {

if (ptt2) {
RTS_ON(ptt_fd[chan][ot]);
}
else {
RTS_OFF(ptt_fd[chan][ot]);
}
setRTS(ptt_fd[chan][ot], ptt2);
}
else if (save_audio_config_p->achan[chan].octrl[ot].ptt_line2 == PTT_LINE_DTR) {

if (ptt2) {
DTR_ON(ptt_fd[chan][ot]);
}
else {
DTR_OFF(ptt_fd[chan][ot]);
}
setDTR(ptt_fd[chan][ot], ptt2);
}
/* else neither one */

Expand Down