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Added comport_enum for Windows version

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svn path=/trunk/externals/iem/comport/; revision=6011
This commit is contained in:
Martin Peach 2006-09-24 21:18:43 +00:00
parent c2b89cde8e
commit 6def035410
1 changed files with 32 additions and 6 deletions
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38
comport/comport.c
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@ -11,6 +11,7 @@ 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 20060709 All status goes out the status outlet when an info message is received
MP 20060824 added clock_delay call in comport_devicename
MP 20060924 added comport_enum to list available ports in Windows
*/
#include "m_pd.h"
@ -198,6 +199,7 @@ 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);
static void comport_enum(void);
#else
static int open_serial(unsigned int com_num, t_comport *x);
static int close_serial(t_comport *x);
@ -1237,18 +1239,42 @@ static void comport_print(t_comport *x, t_symbol *s, int argc, t_atom *argv)
}
}
#ifdef _WIN32
static void comport_enum(void)
{
HANDLE fd;
char device_name[10];
unsigned int i;
DWORD dw;
for(i = 1; i < COMPORT_MAX; i++)
{
sprintf(device_name, "\\\\.\\COM%d", i);/* the recommended way to specify COMs above 9 */
fd = CreateFile( device_name,
GENERIC_READ | GENERIC_WRITE,
0,
0,
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED,
0);
dw = 0L;
if(fd == INVALID_HANDLE_VALUE)
dw = GetLastError();
else
CloseHandle(fd);
if (dw == 0)post("\t%d - COM%d (free)", i, i);
else if (dw == ERROR_ACCESS_DENIED)post("\t%d - COM%d (in use)", i, i);
}
}
#endif // WIN32
static void comport_output_print(t_comport *x)
{
unsigned int i;
post("[comport]: available serial ports:");
#ifdef _WIN32
post("\t0 - COM1");
for(i=1; i<COMPORT_MAX; i++)
{
/* TODO: this should actually probe ports */
post("\t%d - COM%s", i, i);
}
comport_enum();
#else
glob_t glob_buffer;
switch( glob( x->serial_device_name, 0, NULL, &glob_buffer ) )