diff options
Diffstat (limited to 'comport/comport.c')
| -rw-r--r-- | comport/comport.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/comport/comport.c b/comport/comport.c index 55117b5..3db3541 100644 --- a/comport/comport.c +++ b/comport/comport.c @@ -240,6 +240,7 @@ static float set_parity(t_comport *x,int n); static float set_stopflag(t_comport *x, t_float nr); static int set_ctsrts(t_comport *x, int nr); static int set_dtr(t_comport *x, int nr); +static int set_break(t_comport *x, int on); static int set_rts(t_comport *x, int nr); static int set_xonxoff(t_comport *x, int nr); static int set_serial(t_comport *x); @@ -269,6 +270,7 @@ static void comport_stopbit(t_comport *x,t_floatarg f); static void comport_rtscts(t_comport *x,t_floatarg f); static void comport_dtr(t_comport *x,t_floatarg f); static void comport_rts(t_comport *x,t_floatarg f); +static void comport_break(t_comport *x,t_floatarg f); static void comport_xonxoff(t_comport *x,t_floatarg f); static void comport_hupcl(t_comport *x,t_floatarg f); static void comport_close(t_comport *x); @@ -407,6 +409,19 @@ static int set_rts(t_comport *x, int nr) return -1; /* didn't work, GetLastError tells why */ } +static int set_break(t_comport *x, int on) +{ + HANDLE fd = x->comhandle; + BOOL status; + DWORD dwFunc = (on==0)?CLRBREAK:SETBREAK; + + if (fd == INVALID_HANDLE_VALUE) return -1; + + status = EscapeCommFunction(fd, dwFunc); + if (status != 0) return nr; + return -1; /* didn't work, GetLastError tells why */ +} + static int set_xonxoff(t_comport *x, int nr) { /* x->dcb.fTXContinueOnXoff = FALSE; XOFF continues Tx */ @@ -838,6 +853,21 @@ static int set_hupcl(t_comport *x, int nr) return 1; } +static int set_break(t_comport *x, int on) +{ + int fd = x->comhandle; + int status; + + if (fd == INVALID_HANDLE_VALUE) return -1; + + if (on == 0) + status = ioctl(fd, TIOCCBRK); // Turn break off, that is, stop sending zero bits. + else + status = ioctl(fd, TIOCSBRK); // Turn break on, that is, start sending zero bits. + + return ((status < 0)? status: (on != 0)); +} + static int open_serial(unsigned int com_num, t_comport *x) { int fd; @@ -1556,6 +1586,30 @@ static void comport_rts(t_comport *x,t_floatarg f) #endif } +static void comport_break(t_comport *x,t_floatarg f) +{ + f = set_break(x,f); + + if(x->comhandle == INVALID_HANDLE_VALUE)return; + + if(f < 0) + { + pd_error(x,"[comport] ** ERROR ** could not set break of device %s\n", +#ifdef _WIN32 + &x->serial_device->s_name[4]); +#else + x->serial_device->s_name); +#endif + } + else if(x->verbose > 0) + post("[comport] set break of %s to %g\n", +#ifdef _WIN32 + &x->serial_device->s_name[4], f); +#else + x->serial_device->s_name, f); +#endif +} + static void comport_xonxoff(t_comport *x,t_floatarg f) { f = set_xonxoff(x,f); @@ -1946,6 +2000,7 @@ void comport_setup(void) class_addmethod(comport_class, (t_method)comport_rtscts, gensym("rtscts"), A_FLOAT, 0); class_addmethod(comport_class, (t_method)comport_dtr, gensym("dtr"), A_FLOAT, 0); class_addmethod(comport_class, (t_method)comport_rts, gensym("rts"), A_FLOAT, 0); + class_addmethod(comport_class, (t_method)comport_break, gensym("break"), A_FLOAT, 0); class_addmethod(comport_class, (t_method)comport_parity, gensym("parity"), A_FLOAT, 0); class_addmethod(comport_class, (t_method)comport_xonxoff, gensym("xonxoff"), A_FLOAT, 0); class_addmethod(comport_class, (t_method)comport_hupcl, gensym("hupcl"), A_FLOAT, 0); |