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all status is output on second outlet

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svn path=/trunk/externals/iem/comport/; revision=5362
This commit is contained in:
Martin Peach 2006-07-09 19:50:37 +00:00
parent bb01aa88da
commit c087edd878
1 changed files with 239 additions and 77 deletions
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288
comport/comport.c
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@ -9,6 +9,7 @@ MP 20060618 make sure name is set up in comport_new (x->serial_device = test.ser
MP 20060619 implemented status outlet MP 20060619 implemented status outlet
MP 20060620 Add DTR and RTS control, add outputs to reflect CTS and DSR states. MP 20060620 Add DTR and RTS control, add outputs to reflect CTS and DSR states.
MP 20060621 Do all the above for Windows too. MP 20060621 Do all the above for Windows too.
MP 20060709 All status goes out the status outlet when an info message is received
*/ */
#include "m_pd.h" #include "m_pd.h"
@ -53,10 +54,12 @@ typedef struct comport
t_symbol *serial_device; t_symbol *serial_device;
char serial_device_name[FILENAME_MAX]; char serial_device_name[FILENAME_MAX];
short comport; /* holds the comport # */ short comport; /* holds the comport # */
short last_comport; /* the last comport that was output on x_status_outlet */
short last_dsr;/* last dsr input state */
short last_cts;/* last cts input state */
t_float baud; /* holds the current baud rate */ t_float baud; /* holds the current baud rate */
t_float data_bits; /* holds the current number of data bits */
t_float parity_bit; /* holds the current parity */
t_float stop_bits; /* holds the current number of stop bits */
int xonxoff; /* nonzero if xonxoff handshaking is on */
int ctsrts; /* nonzero if ctsrts handshaking is on */
short rxerrors; /* holds the rx line errors */ short rxerrors; /* holds the rx line errors */
t_clock *x_clock; t_clock *x_clock;
int x_hit; int x_hit;
@ -64,8 +67,6 @@ typedef struct comport
int verbose; int verbose;
t_outlet *x_data_outlet; t_outlet *x_data_outlet;
t_outlet *x_status_outlet; t_outlet *x_status_outlet;
t_outlet *x_dsr_outlet;
t_outlet *x_cts_outlet;
} t_comport; } t_comport;
#ifndef TRUE #ifndef TRUE
@ -177,6 +178,60 @@ static long baudratetable[] =
t_class *comport_class; t_class *comport_class;
static long get_baud_ratebits(t_float *baud);
static void comport_pollintervall(t_comport *x, t_floatarg g);
static void comport_tick(t_comport *x);
static float set_baudrate(t_comport *x,t_float baud);
static float set_bits(t_comport *x, int nr);
static float set_parity(t_comport *x,int n);
static float set_stopflag(t_comport *x, int nr);
static int set_ctsrts(t_comport *x, int nr);
static int set_dtr(t_comport *x, int nr);
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);
static int write_serial(t_comport *x, unsigned char serial_byte);
int comport_get_dsr(t_comport *x);
int comport_get_cts(t_comport *x);
#ifdef _WIN32
static HANDLE open_serial(unsigned int com_num, t_comport *x);
static HANDLE close_serial(t_comport *x);
#else
static int open_serial(unsigned int com_num, t_comport *x);
static int close_serial(t_comport *x);
#endif
static void comport_pollintervall(t_comport *x, t_floatarg g);
static void comport_tick(t_comport *x);
static void comport_float(t_comport *x, t_float f);
static void *comport_new(t_floatarg com_num, t_floatarg fbaud);
static void comport_free(t_comport *x);
static void comport_baud(t_comport *x,t_floatarg f);
static void comport_bits(t_comport *x,t_floatarg f);
static void comport_parity(t_comport *x,t_floatarg f);
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_xonxoff(t_comport *x,t_floatarg f);
static void comport_close(t_comport *x);
static void comport_open(t_comport *x, t_floatarg f);
static void comport_devicename(t_comport *x, t_symbol *s);
static void comport_print(t_comport *x, t_symbol *s, int argc, t_atom *argv);
static void comport_output_status(t_comport *x, t_symbol *selector, t_float output_value);
static void comport_output_port_status(t_comport *x);
static void comport_output_dsr_status(t_comport *x);
static void comport_output_cts_status(t_comport *x);
static void comport_output_baud_rate(t_comport *x);
static void comport_output_parity_bit(t_comport *x);
static void comport_output_stop_bits(t_comport *x);
static void comport_output_data_bits(t_comport *x);
static void comport_output_rtscts(t_comport *x);
static void comport_output_xonxoff(t_comport *x);
static void comport_info(t_comport *x);
static void comport_verbose(t_comport *x, t_floatarg f);
static void comport_help(t_comport *x);
void comport_setup(void);
/* --------- sys independent serial setup helpers ---------------- */ /* --------- sys independent serial setup helpers ---------------- */
static long get_baud_ratebits(t_float *baud) static long get_baud_ratebits(t_float *baud)
@ -386,11 +441,10 @@ static HANDLE open_serial(unsigned int com_num, t_comport *x)
/* char x->dcb.ErrorChar; error replacement character */ /* char x->dcb.ErrorChar; error replacement character */
/* char x->dcb.EofChar; end of input character */ /* char x->dcb.EofChar; end of input character */
/* char x->dcb.EvtChar; received event character */ /* char x->dcb.EvtChar; received event character */
set_bits(x, x->data_bits); /* CS8 */
set_bits(x, 8); /* CS8 */ set_stopflag(x, x->stop_bits); /* ~CSTOPB */
set_stopflag(x, 0); /* ~CSTOPB */ set_ctsrts(x, x->ctsrts); /* ~CRTSCTS;*/
set_ctsrts(x, 0); /* ~CRTSCTS;*/ set_xonxoff(x, x->xonxoff); /* (IXON | IXOFF | IXANY) */
set_xonxoff(x, 0); /* (IXON | IXOFF | IXANY) */
set_baudrate(x, *baud); set_baudrate(x, *baud);
x->comhandle = fd; x->comhandle = fd;
@ -479,6 +533,45 @@ static int write_serial(t_comport *x, unsigned char serial_byte)
return 1; return 1;
} }
int comport_get_dsr(t_comport *x)
{
short dsr_state = 0;
if(x->comhandle != INVALID_HANDLE_VALUE)
{
DWORD modemStat;
/* get the DSR input state and if it's changed, output it */
BOOL status = GetCommModemStatus(x->comhandle, &modemStat);
if (status)
{
dsr_state = ((modemStat&MS_DSR_ON)!=0);/* read the DSR input line */
}
else
{
;/* call GetLastError, only once so as not to hang pd */
}
}
return dsr_state;
}
int comport_get_cts(t_comport *x)
{
short cts_state = 0;
if (x->comhandle != INVALID_HANDLE_VALUE)
{
DWORD modemStat;
/* get the DSR input state and if it's changed, output it */
BOOL status = GetCommModemStatus(x->comhandle, &modemStat);
if (status)
{
cts_state = ((modemStat&MS_CTS_ON)!=0);/* read the CTS input line */
}
else
{
;/* call GetLastError, only once so as not to hang pd */
}
}
return cts_state;
}
#else /* NT */ #else /* NT */
/* ----------------- POSIX - UNIX ------------------------------ */ /* ----------------- POSIX - UNIX ------------------------------ */
@ -688,11 +781,11 @@ static int open_serial(unsigned int com_num, t_comport *x)
/* defaults, see input */ /* defaults, see input */
set_bits(x,8); /* CS8 */ set_bits(x, x->data_bits); /* CS8 */
set_stopflag(x,0); /* ~CSTOPB */ set_stopflag(x, x->stop_bits); /* ~CSTOPB */
set_ctsrts(x,0); /* ~CRTSCTS;*/ set_ctsrts(x, x->ctsrts); /* ~CRTSCTS;*/
set_xonxoff(x,0); /* (IXON | IXOFF | IXANY) */ set_xonxoff(x, x->xonxoff); /* (IXON | IXOFF | IXANY) */
set_baudrate(x,*baud); set_baudrate(x, *baud);
if(tcsetattr(fd, TCSAFLUSH, new) != -1) if(tcsetattr(fd, TCSAFLUSH, new) != -1)
{ {
@ -707,9 +800,6 @@ static int open_serial(unsigned int com_num, t_comport *x)
return INVALID_HANDLE_VALUE; return INVALID_HANDLE_VALUE;
} }
x->comport = com_num; /* output at next comport_tick */ x->comport = com_num; /* output at next comport_tick */
x->last_comport = 777; /* a wrong number to force ouput at next comport_tick */
x->last_dsr = -1; /* a wrong number so state will be output at next comport_tick */
x->last_cts = -1; /* a wrong number so state will be output at next comport_tick */
return fd; return fd;
} }
@ -749,6 +839,34 @@ static int write_serial(t_comport *x, unsigned char serial_byte)
*/ */
} }
int comport_get_dsr(t_comport *x)
{
short dsr_state = 0;
if (x->comhandle != INVALID_HANDLE_VALUE)
{
int status;/*dsr outlet*/
/* get the DSR input state and if it's changed, output it */
ioctl(x->comhandle, TIOCMGET, &status);/*dsr outlet*/
dsr_state = ((status&TIOCM_LE)!=0);/* read the DSR input line */
}
return dsr_state;
}
int comport_get_cts(t_comport *x)
{
short cts_state = 0;
if (x->comhandle != INVALID_HANDLE_VALUE)
{
int status;/*cts outlet*/
/* get the CTS input state and if it's changed, output it */
ioctl(x->comhandle, TIOCMGET, &status);
cts_state = ((status&TIOCM_CTS)!=0);/* read the CTS input line */
}
return cts_state;
}
#endif /* else NT */ #endif /* else NT */
/* ------------------- serial pd methods --------------------------- */ /* ------------------- serial pd methods --------------------------- */
@ -762,50 +880,9 @@ static void comport_tick(t_comport *x)
{ {
int err; int err;
HANDLE fd = x->comhandle; HANDLE fd = x->comhandle;
short newdsr, newcts;
#ifdef _WIN32
{
DWORD modemStat;
/* get the DSR input state and if it's changed, output it */
BOOL status = GetCommModemStatus( fd, &modemStat);
if (status)
{
newdsr = ((modemStat&MS_DSR_ON)!=0);/* read the DSR input line */
newcts = ((modemStat&MS_CTS_ON)!=0);/* read the CTS input line */
}
else
{
;/* call GetLastError, only once so as not to hang pd */
}
}
#else
{
int status;/*dsr outlet*/
/* get the DSR input state and if it's changed, output it */
ioctl(fd, TIOCMGET, &status);/*dsr outlet*/
newdsr = ((status&TIOCM_LE)!=0);/* read the DSR input line */
newcts = ((status&TIOCM_CTS)!=0);/* read the CTS input line */
}
#endif
if (newdsr != x->last_dsr)
{
x->last_dsr = newdsr;
if(x->x_dsr_outlet!=NULL) outlet_float(x->x_dsr_outlet, (float)(x->last_dsr));/*dsr outlet*/
}
if (newcts != x->last_cts)
{
x->last_cts = newcts;
if(x->x_cts_outlet!=NULL) outlet_float(x->x_cts_outlet, (float)(x->last_cts));/*cts outlet*/
}
x->x_hit = 0; x->x_hit = 0;
if(x->last_comport != x->comport)
{
x->last_comport = x->comport;
if (x->x_status_outlet != NULL) outlet_float(x->x_status_outlet, (float)x->comport);
}
if(fd == INVALID_HANDLE_VALUE) return; if(fd == INVALID_HANDLE_VALUE) return;
/* while there are bytes, read them and send them out, ignore errors */ /* while there are bytes, read them and send them out, ignore errors */
@ -896,17 +973,26 @@ static void *comport_new(t_floatarg com_num, t_floatarg fbaud)
/* Open the Comport for RD and WR and get a handle */ /* Open the Comport for RD and WR and get a handle */
strncpy(test.serial_device_name, serial_device_name, strlen(serial_device_name)+1); strncpy(test.serial_device_name, serial_device_name, strlen(serial_device_name)+1);
test.baud = fbaud; test.baud = fbaud;
test.data_bits = 8; /* default 8 data bits */
test.parity_bit = 0;/* default no parity bit */
test.stop_bits = 0;/* default 1 stop bit */
test.ctsrts = 0; /* default no hardware handshaking */
test.xonxoff = 0; /* default no software handshaking */
fd = open_serial((unsigned int)com_num, &test); fd = open_serial((unsigned int)com_num, &test);
/* Now nothing really bad could happen so we create the class */ /* Now nothing really bad could happen so we create the class */
x = (t_comport *)pd_new(comport_class); x = (t_comport *)pd_new(comport_class);
x->comport = test.comport;/* com_num */ x->comport = test.comport;/* com_num */
x->last_comport = 777; /* no known comport to force output at comport_tick */
strncpy(x->serial_device_name,serial_device_name,strlen(serial_device_name)+1); strncpy(x->serial_device_name,serial_device_name,strlen(serial_device_name)+1);
x->serial_device = test.serial_device; /* we need this so 'help' doesn't crash */ x->serial_device = test.serial_device; /* we need this so 'help' doesn't crash */
x->baud = test.baud; x->baud = test.baud;
x->data_bits = test.data_bits;
x->parity_bit = test.parity_bit;
x->stop_bits = test.stop_bits;
x->ctsrts = test.ctsrts;
x->xonxoff = test.xonxoff;
x->comhandle = fd; /* holds the comport handle */ x->comhandle = fd; /* holds the comport handle */
if(fd == INVALID_HANDLE_VALUE ) if(fd == INVALID_HANDLE_VALUE )
@ -930,8 +1016,6 @@ static void *comport_new(t_floatarg com_num, t_floatarg fbaud)
x->x_data_outlet = outlet_new(&x->x_obj, &s_float); x->x_data_outlet = outlet_new(&x->x_obj, &s_float);
x->x_status_outlet = outlet_new(&x->x_obj, &s_float); x->x_status_outlet = outlet_new(&x->x_obj, &s_float);
x->x_dsr_outlet = outlet_new(&x->x_obj, &s_float);
x->x_cts_outlet = outlet_new(&x->x_obj, &s_float);
x->x_hit = 0; x->x_hit = 0;
x->x_deltime = 1; x->x_deltime = 1;
@ -986,9 +1070,11 @@ static void comport_bits(t_comport *x,t_floatarg f)
{ {
error("[comport] ** ERROR ** could not set bits of device %s\n", error("[comport] ** ERROR ** could not set bits of device %s\n",
x->serial_device->s_name); x->serial_device->s_name);
return;
} }
else if(x->verbose > 0) else if(x->verbose > 0)
post("set bits of %s to %f\n",x->serial_device->s_name,f); post("set bits of %s to %f\n",x->serial_device->s_name,f);
x->data_bits = f;
} }
@ -1002,9 +1088,11 @@ static void comport_parity(t_comport *x,t_floatarg f)
{ {
error("[comport] ** ERROR ** could not set extra paritybit of device %s\n", error("[comport] ** ERROR ** could not set extra paritybit of device %s\n",
x->serial_device->s_name); x->serial_device->s_name);
return;
} }
else if(x->verbose > 0) else if(x->verbose > 0)
post("[comport] set extra paritybit of %s to %f\n",x->serial_device->s_name,f); post("[comport] set extra paritybit of %s to %f\n",x->serial_device->s_name,f);
x->parity_bit = f;
} }
static void comport_stopbit(t_comport *x,t_floatarg f) static void comport_stopbit(t_comport *x,t_floatarg f)
@ -1017,9 +1105,11 @@ static void comport_stopbit(t_comport *x,t_floatarg f)
{ {
error("[comport] ** ERROR ** could not set extra stopbit of device %s\n", error("[comport] ** ERROR ** could not set extra stopbit of device %s\n",
x->serial_device->s_name); x->serial_device->s_name);
return;
} }
else if(x->verbose > 0) else if(x->verbose > 0)
post("[comport] set extra stopbit of %s to %f\n",x->serial_device->s_name,f); post("[comport] set extra stopbit of %s to %f\n",x->serial_device->s_name,f);
x->stop_bits = f;
} }
static void comport_rtscts(t_comport *x,t_floatarg f) static void comport_rtscts(t_comport *x,t_floatarg f)
@ -1032,9 +1122,11 @@ static void comport_rtscts(t_comport *x,t_floatarg f)
{ {
error("[comport] ** ERROR ** could not set rts_cts of device %s\n", error("[comport] ** ERROR ** could not set rts_cts of device %s\n",
x->serial_device->s_name); x->serial_device->s_name);
return;
} }
else if(x->verbose > 0) else if(x->verbose > 0)
post("[comport] set rts-cts of %s to %f\n",x->serial_device->s_name,f); post("[comport] set rts-cts of %s to %f\n",x->serial_device->s_name,f);
x->ctsrts = f;
} }
static void comport_dtr(t_comport *x,t_floatarg f) static void comport_dtr(t_comport *x,t_floatarg f)
@ -1077,9 +1169,11 @@ static void comport_xonxoff(t_comport *x,t_floatarg f)
{ {
error("[comport] ** ERROR ** could not set xonxoff of device %s\n", error("[comport] ** ERROR ** could not set xonxoff of device %s\n",
x->serial_device->s_name); x->serial_device->s_name);
return;
} }
else if(x->verbose > 0) else if(x->verbose > 0)
post("[comport] set xonxoff of %s to %f\n",x->serial_device->s_name,f); post("[comport] set xonxoff of %s to %f\n",x->serial_device->s_name,f);
x->xonxoff = f;
} }
static void comport_close(t_comport *x) static void comport_close(t_comport *x)
@ -1089,7 +1183,6 @@ static void comport_close(t_comport *x)
x->comhandle = close_serial(x); x->comhandle = close_serial(x);
x->comport = -1; /* none */ x->comport = -1; /* none */
if (x->x_status_outlet != NULL) outlet_float(x->x_status_outlet, (float)x->comport); if (x->x_status_outlet != NULL) outlet_float(x->x_status_outlet, (float)x->comport);
x->last_comport = x->comport;
} }
static void comport_open(t_comport *x, t_floatarg f) static void comport_open(t_comport *x, t_floatarg f)
@ -1131,6 +1224,73 @@ static void comport_print(t_comport *x, t_symbol *s, int argc, t_atom *argv)
} }
} }
} }
static void comport_output_status(t_comport *x, t_symbol *selector, t_float output_value)
{
t_atom *output_atom = getbytes(sizeof(t_atom));
SETFLOAT(output_atom, output_value);
outlet_anything( x->x_status_outlet, selector, 1, output_atom);
freebytes(output_atom,sizeof(t_atom));
}
static void comport_output_port_status(t_comport *x)
{
comport_output_status(x, gensym("port"), (float)x->comport);
}
static void comport_output_dsr_status(t_comport *x)
{
comport_output_status(x, gensym("dsr"), (float)comport_get_dsr(x));
}
static void comport_output_cts_status(t_comport *x)
{
comport_output_status(x, gensym("cts"), (float)comport_get_cts(x));
}
static void comport_output_baud_rate(t_comport *x)
{
comport_output_status(x, gensym("baud"), x->baud);
}
static void comport_output_parity_bit(t_comport *x)
{
comport_output_status(x, gensym("parity"), x->parity_bit);
}
static void comport_output_stop_bits(t_comport *x)
{
comport_output_status(x, gensym("stop"), x->stop_bits+1);
}
static void comport_output_data_bits(t_comport *x)
{
comport_output_status(x, gensym("data"), x->data_bits);
}
static void comport_output_rtscts(t_comport *x)
{
comport_output_status(x, gensym("rtscts"), x->ctsrts);
}
static void comport_output_xonxoff(t_comport *x)
{
comport_output_status(x, gensym("xonxoff"), x->xonxoff);
}
static void comport_info(t_comport *x)
{
comport_output_port_status(x);
comport_output_baud_rate(x);
comport_output_dsr_status(x);
comport_output_cts_status(x);
comport_output_parity_bit(x);
comport_output_stop_bits(x);
comport_output_data_bits(x);
comport_output_rtscts(x);
comport_output_xonxoff(x);
}
/* ---------------- HELPER ------------------------- */ /* ---------------- HELPER ------------------------- */
static void comport_verbose(t_comport *x, t_floatarg f) static void comport_verbose(t_comport *x, t_floatarg f)
{ {
@ -1161,6 +1321,7 @@ static void comport_help(t_comport *x)
" print <list> ... print list of atoms on serial\n" " print <list> ... print list of atoms on serial\n"
" pollintervall <t> ... set poll interval to t ticks\n" " pollintervall <t> ... set poll interval to t ticks\n"
" verbose <level> ... for debug set verbosity to level\n" " verbose <level> ... for debug set verbosity to level\n"
" info ... output info on status outlet\n"
" help ... post this help"); " help ... post this help");
} }
@ -1192,6 +1353,7 @@ void comport_setup(void)
class_addmethod(comport_class, (t_method)comport_pollintervall, gensym("pollintervall"), A_FLOAT, 0); class_addmethod(comport_class, (t_method)comport_pollintervall, gensym("pollintervall"), A_FLOAT, 0);
class_addmethod(comport_class, (t_method)comport_verbose, gensym("verbose"), A_FLOAT, 0); class_addmethod(comport_class, (t_method)comport_verbose, gensym("verbose"), A_FLOAT, 0);
class_addmethod(comport_class, (t_method)comport_help, gensym("help"), 0); class_addmethod(comport_class, (t_method)comport_help, gensym("help"), 0);
class_addmethod(comport_class, (t_method)comport_info, gensym("info"), 0);
#ifndef _WIN32 #ifndef _WIN32
null_tv.tv_sec = 0; /* no wait */ null_tv.tv_sec = 0; /* no wait */