/* Serial interface for local (hardwired) serial ports on Un*x like systems
- Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2003,
- 2004, 2005, 2007 Free Software Foundation, Inc.
+ Copyright (C) 1992-1996, 1998-2001, 2003-2005, 2007-2012 Free
+ Software Foundation, Inc.
This file is part of GDB.
void _initialize_ser_hardwire (void);
-/* Open up a real live device for serial I/O */
+/* Open up a real live device for serial I/O. */
static int
hardwire_open (struct serial *scb, const char *name)
state = (struct hardwire_ttystate *) xmalloc (sizeof *state);
if (get_tty_state (scb, state))
- return NULL;
+ {
+ xfree (state);
+ return NULL;
+ }
+
+ return (serial_ttystate) state;
+}
+
+static serial_ttystate
+hardwire_copy_tty_state (struct serial *scb, serial_ttystate ttystate)
+{
+ struct hardwire_ttystate *state;
+
+ state = (struct hardwire_ttystate *) xmalloc (sizeof *state);
+ *state = *(struct hardwire_ttystate *) ttystate;
return (serial_ttystate) state;
}
#endif
}
-/* Wait for the output to drain away, as opposed to flushing (discarding) it */
+/* Wait for the output to drain away, as opposed to flushing
+ (discarding) it. */
static int
hardwire_drain_output (struct serial *scb)
#ifdef HAVE_SGTTY
/* Get the current state and then restore it using TIOCSETP,
which should cause the output to drain and pending input
- to be discarded. */
+ to be discarded. */
{
struct hardwire_ttystate state;
+
if (get_tty_state (scb, &state))
{
return (-1);
#ifdef HAVE_SGTTY
{
int status;
- struct timeval timeout;
status = ioctl (scb->fd, TIOCSBRK, 0);
/* Can't use usleep; it doesn't exist in BSD 4.2. */
- /* Note that if this select() is interrupted by a signal it will not wait
- the full length of time. I think that is OK. */
- timeout.tv_sec = 0;
- timeout.tv_usec = 250000;
- gdb_select (0, 0, 0, 0, &timeout);
+ /* Note that if this gdb_select() is interrupted by a signal it will not
+ wait the full length of time. I think that is OK. */
+ gdb_usleep (250000);
status = ioctl (scb->fd, TIOCCBRK, 0);
return status;
}
struct hardwire_ttystate state;
if (get_tty_state (scb, &state))
- fprintf_unfiltered (gdb_stderr, "get_tty_state failed: %s\n", safe_strerror (errno));
+ fprintf_unfiltered (gdb_stderr, "get_tty_state failed: %s\n",
+ safe_strerror (errno));
#ifdef HAVE_TERMIOS
state.termios.c_iflag = 0;
scb->current_timeout = 0;
if (set_tty_state (scb, &state))
- fprintf_unfiltered (gdb_stderr, "set_tty_state failed: %s\n", safe_strerror (errno));
+ fprintf_unfiltered (gdb_stderr, "set_tty_state failed: %s\n",
+ safe_strerror (errno));
}
/* Wait for input on scb, with timeout seconds. Returns 0 on success,
otherwise SERIAL_TIMEOUT or SERIAL_ERROR.
For termio{s}, we actually just setup VTIME if necessary, and let the
- timeout occur in the read() in hardwire_read().
- */
+ timeout occur in the read() in hardwire_read(). */
/* FIXME: cagney/1999-09-16: Don't replace this with the equivalent
ser_base*() until the old TERMIOS/SGTTY/... timer code has been
- flushed. . */
+ flushed. . */
/* NOTE: cagney/1999-09-30: Much of the code below is dead. The only
possible values of the TIMEOUT parameter are ONE and ZERO.
Consequently all the code that tries to handle the possability of
- an overflowed timer is unnecessary. */
+ an overflowed timer is unnecessary. */
static int
wait_for (struct serial *scb, int timeout)
/* NOTE: Some OS's can scramble the READFDS when the select()
call fails (ex the kernel with Red Hat 5.2). Initialize all
- arguments before each call. */
+ arguments before each call. */
tv.tv_sec = timeout;
tv.tv_usec = 0;
else if (errno == EINTR)
continue;
else
- return SERIAL_ERROR; /* Got an error from select or poll */
+ return SERIAL_ERROR; /* Got an error from select or poll. */
return 0;
}
struct hardwire_ttystate state;
if (get_tty_state (scb, &state))
- fprintf_unfiltered (gdb_stderr, "get_tty_state failed: %s\n", safe_strerror (errno));
+ fprintf_unfiltered (gdb_stderr, "get_tty_state failed: %s\n",
+ safe_strerror (errno));
#ifdef HAVE_TERMIOS
if (timeout < 0)
#endif
if (set_tty_state (scb, &state))
- fprintf_unfiltered (gdb_stderr, "set_tty_state failed: %s\n", safe_strerror (errno));
+ fprintf_unfiltered (gdb_stderr, "set_tty_state failed: %s\n",
+ safe_strerror (errno));
return 0;
}
#endif /* HAVE_TERMIO || HAVE_TERMIOS */
}
-/* Read a character with user-specified timeout. TIMEOUT is number of seconds
- to wait, or -1 to wait forever. Use timeout of 0 to effect a poll. Returns
- char if successful. Returns SERIAL_TIMEOUT if timeout expired, EOF if line
- dropped dead, or SERIAL_ERROR for any other error (see errno in that case). */
+/* Read a character with user-specified timeout. TIMEOUT is number of
+ seconds to wait, or -1 to wait forever. Use timeout of 0 to effect
+ a poll. Returns char if successful. Returns SERIAL_TIMEOUT if
+ timeout expired, EOF if line dropped dead, or SERIAL_ERROR for any
+ other error (see errno in that case). */
/* FIXME: cagney/1999-09-16: Don't replace this with the equivalent
ser_base*() until the old TERMIOS/SGTTY/... timer code has been
- flushed. */
+ flushed. */
/* NOTE: cagney/1999-09-16: This function is not identical to
ser_base_readchar() as part of replacing it with ser_base*()
merging will be required - this code handles the case where read()
times out due to no data while ser_base_readchar() doesn't expect
- that. */
+ that. */
static int
do_hardwire_readchar (struct serial *scb, int timeout)
else if (errno == EINTR)
continue;
else
- return SERIAL_ERROR; /* Got an error from read */
+ return SERIAL_ERROR; /* Got an error from read. */
}
scb->bufcnt = status;
for (i = 0; baudtab[i].rate != -1; i++)
{
- /* test for perfect macth. */
+ /* test for perfect macth. */
if (rate == baudtab[i].rate)
return baudtab[i].code;
else
{
- /* check if it is in between valid values. */
+ /* check if it is in between valid values. */
if (rate < baudtab[i].rate)
{
if (i)
{
- warning (_("Invalid baud rate %d. Closest values are %d and %d."),
- rate, baudtab[i - 1].rate, baudtab[i].rate);
+ warning (_("Invalid baud rate %d. "
+ "Closest values are %d and %d."),
+ rate, baudtab[i - 1].rate, baudtab[i].rate);
}
else
{
warning (_("Invalid baud rate %d. Minimum value is %d."),
- rate, baudtab[0].rate);
+ rate, baudtab[0].rate);
}
return -1;
}
}
}
- /* The requested speed was too large. */
+ /* The requested speed was too large. */
warning (_("Invalid baud rate %d. Maximum value is %d."),
rate, baudtab[i - 1].rate);
return -1;
if (baud_code < 0)
{
/* The baud rate was not valid.
- A warning has already been issued. */
+ A warning has already been issued. */
errno = EINVAL;
return -1;
}
_initialize_ser_hardwire (void)
{
struct serial_ops *ops = XMALLOC (struct serial_ops);
+
memset (ops, 0, sizeof (struct serial_ops));
ops->name = "hardwire";
ops->next = 0;
ops->open = hardwire_open;
ops->close = hardwire_close;
/* FIXME: Don't replace this with the equivalent ser_base*() until
- the old TERMIOS/SGTTY/... timer code has been flushed. cagney
- 1999-09-16. */
+ the old TERMIOS/SGTTY/... timer code has been flushed. cagney
+ 1999-09-16. */
ops->readchar = hardwire_readchar;
ops->write = ser_base_write;
ops->flush_output = hardwire_flush_output;
ops->send_break = hardwire_send_break;
ops->go_raw = hardwire_raw;
ops->get_tty_state = hardwire_get_tty_state;
+ ops->copy_tty_state = hardwire_copy_tty_state;
ops->set_tty_state = hardwire_set_tty_state;
ops->print_tty_state = hardwire_print_tty_state;
ops->noflush_set_tty_state = hardwire_noflush_set_tty_state;
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