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* ser-unix.c (show_serial_hwflow): New function.
(hardwire_raw): Add hardware flow control support.
(_initialize_ser_hardwire): Add "set/show remoteflow".
* Makefile.in (ser-unix.o): Depend on $(gdbcmd_h).
* NEWS: Document the new command.

gdb/doc/:
* gdb.texinfo (Remote Configuration): Document "set/show
remoteflow".
This commit is contained in:
Maciej W. Rozycki 2007-05-22 10:57:12 +00:00
parent 0e9517a90d
commit 23776285b7
6 changed files with 70 additions and 1 deletions
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40
gdb/ser-unix.c
View file

@ -33,6 +33,7 @@
#include "gdb_select.h"
#include "gdb_string.h"
#include "gdbcmd.h"
#ifdef HAVE_TERMIOS
@ -40,6 +41,18 @@ struct hardwire_ttystate
{
struct termios termios;
};
#ifdef CRTSCTS
/* Boolean to explicitly enable or disable h/w flow control. */
static int serial_hwflow;
static void
show_serial_hwflow (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
fprintf_filtered (file, _("Hardware flow control is %s.\n"), value);
}
#endif
#endif /* termios */
#ifdef HAVE_TERMIO
@ -387,6 +400,19 @@ hardwire_raw (struct serial *scb)
state.termios.c_lflag = 0;
state.termios.c_cflag &= ~(CSIZE | PARENB);
state.termios.c_cflag |= CLOCAL | CS8;
#ifdef CRTSCTS
/* h/w flow control. */
if (serial_hwflow)
state.termios.c_cflag |= CRTSCTS;
else
state.termios.c_cflag &= ~CRTSCTS;
#ifdef CRTS_IFLOW
if (serial_hwflow)
state.termios.c_cflag |= CRTS_IFLOW;
else
state.termios.c_cflag &= ~CRTS_IFLOW;
#endif
#endif
state.termios.c_cc[VMIN] = 0;
state.termios.c_cc[VTIME] = 0;
#endif
@ -892,6 +918,20 @@ _initialize_ser_hardwire (void)
ops->read_prim = ser_unix_read_prim;
ops->write_prim = ser_unix_write_prim;
serial_add_interface (ops);
#ifdef HAVE_TERMIOS
#ifdef CRTSCTS
add_setshow_boolean_cmd ("remoteflow", no_class,
&serial_hwflow, _("\
Set use of hardware flow control for remote serial I/O."), _("\
Show use of hardware flow control for remote serial I/O."), _("\
Enable or disable hardware flow control (RTS/CTS) on the serial port\n\
when debugging using remote targets."),
NULL,
show_serial_hwflow,
&setlist, &showlist);
#endif
#endif
}
int