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made [comport] handle arguments more gracefully and made it throw an error if it can't open the serial port

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svn path=/trunk/externals/iem/comport/; revision=11367
This commit is contained in:
Hans-Christoph Steiner 2009-05-14 20:17:33 +00:00
parent 34873c90ba
commit c29a8fa5a1
1 changed files with 26 additions and 24 deletions
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50
comport/comport.c
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@ -251,7 +251,7 @@ 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_list(t_comport *x, t_symbol *s, int argc, t_atom *argv);
static void *comport_new(t_floatarg com_num, t_floatarg fbaud);
static void *comport_new(t_symbol *s, int argc, t_atom *argv);
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);
@ -1184,34 +1184,37 @@ static void comport_list(t_comport *x, t_symbol *s, int argc, t_atom *argv)
post ("[comport] write returned %d, errno is %d", result, errno);
}
static void *comport_new(t_floatarg com_num, t_floatarg fbaud)
static void *comport_new(t_symbol *s, int argc, t_atom *argv)
{
t_comport test;
t_comport *x;
HANDLE fd;
const char *serial_device_prefix;
t_float com_num = 0;
t_float fbaud = 9600;
/* for UNIX, this is a glob pattern for matching devices */
#ifdef _WIN32
/*
According to http://msdn2.microsoft.com/en-us/library/aa363858.aspx
To specify a COM port number greater than 9,
use the following syntax: "\\\\.\\COM10".
This syntax works for all port numbers and hardware
that allows COM port numbers to be specified.
*/
const char *serial_device_prefix = "\\\\.\\COM";
#else
# ifdef __APPLE__
const char *serial_device_prefix = "/dev/tty.*";
# else
# ifdef IRIX
const char *serial_device_prefix = "/dev/ttyd*";
# else
const char *serial_device_prefix = "/dev/tty[SU]*";
# endif /* IRIX */
# endif /* __APPLE__ */
/* According to http://msdn2.microsoft.com/en-us/library/aa363858.aspx To
specify a COM port number greater than 9, use the following syntax:
"\\\\.\\COM10". This syntax works for all port numbers and hardware that
allows COM port numbers to be specified. */
serial_device_prefix = "\\\\.\\COM";
#endif /* _WIN32 */
/* for UNIX, this is a glob pattern for matching devices */
#ifdef __APPLE__
serial_device_prefix = "/dev/tty.*";
#endif /* __APPLE__ */
#ifdef IRIX
serial_device_prefix = "/dev/ttyd*";
#endif /* IRIX */
#ifdef __linux__
serial_device_prefix = "/dev/tty[SU]*";
#endif /* __linux__ */
if(argc > 0 && argv->a_type == A_FLOAT)
com_num = atom_getfloatarg(0,argc,argv);
if(argc > 1 && argv->a_type == A_FLOAT)
fbaud = atom_getfloatarg(1,argc,argv);
/* Open the Comport for RD and WR and get a handle */
/* this line should use a real serial device */
@ -1247,8 +1250,7 @@ that allows COM port numbers to be specified.
if(fd == INVALID_HANDLE_VALUE )
{
/* postings in open routine */
post("[comport] invalid handle for %s", x->serial_device_prefix);
pd_error(x, "[comport] opening serial port %d failed!", com_num);
}
else
{
@ -1836,7 +1838,7 @@ void comport_setup(void)
{
comport_class = class_new(gensym("comport"), (t_newmethod)comport_new,
(t_method)comport_free, sizeof(t_comport),
0, A_DEFFLOAT, A_DEFFLOAT, 0);
0, A_GIMME, 0);
class_addfloat(comport_class, (t_method)comport_float);
class_addlist(comport_class, (t_method)comport_list);