/* Serial interface for local (hardwired) serial ports on Un*x like systems
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/* Serial interface for local (hardwired) serial ports on Un*x like systems
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Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2003,
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Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2003,
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2004, 2005, 2007, 2008 Free Software Foundation, Inc.
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2004, 2005, 2007, 2008 Free Software Foundation, Inc.
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "defs.h"
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#include "serial.h"
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#include "serial.h"
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#include "ser-base.h"
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#include "ser-base.h"
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#include "ser-unix.h"
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#include "ser-unix.h"
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#include <fcntl.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/types.h>
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#include "terminal.h"
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#include "terminal.h"
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#include <sys/socket.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <sys/time.h>
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#include "gdb_select.h"
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#include "gdb_select.h"
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#include "gdb_string.h"
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#include "gdb_string.h"
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#include "gdbcmd.h"
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#include "gdbcmd.h"
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#ifdef HAVE_TERMIOS
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#ifdef HAVE_TERMIOS
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struct hardwire_ttystate
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struct hardwire_ttystate
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{
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{
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struct termios termios;
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struct termios termios;
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};
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};
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#ifdef CRTSCTS
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#ifdef CRTSCTS
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/* Boolean to explicitly enable or disable h/w flow control. */
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/* Boolean to explicitly enable or disable h/w flow control. */
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static int serial_hwflow;
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static int serial_hwflow;
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static void
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static void
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show_serial_hwflow (struct ui_file *file, int from_tty,
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show_serial_hwflow (struct ui_file *file, int from_tty,
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struct cmd_list_element *c, const char *value)
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struct cmd_list_element *c, const char *value)
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{
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{
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fprintf_filtered (file, _("Hardware flow control is %s.\n"), value);
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fprintf_filtered (file, _("Hardware flow control is %s.\n"), value);
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}
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}
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#endif
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#endif
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#endif /* termios */
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#endif /* termios */
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#ifdef HAVE_TERMIO
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#ifdef HAVE_TERMIO
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/* It is believed that all systems which have added job control to SVR3
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/* It is believed that all systems which have added job control to SVR3
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(e.g. sco) have also added termios. Even if not, trying to figure out
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(e.g. sco) have also added termios. Even if not, trying to figure out
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all the variations (TIOCGPGRP vs. TCGETPGRP, etc.) would be pretty
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all the variations (TIOCGPGRP vs. TCGETPGRP, etc.) would be pretty
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bewildering. So we don't attempt it. */
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bewildering. So we don't attempt it. */
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struct hardwire_ttystate
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struct hardwire_ttystate
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{
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{
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struct termio termio;
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struct termio termio;
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};
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};
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#endif /* termio */
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#endif /* termio */
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#ifdef HAVE_SGTTY
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#ifdef HAVE_SGTTY
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struct hardwire_ttystate
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struct hardwire_ttystate
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{
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{
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struct sgttyb sgttyb;
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struct sgttyb sgttyb;
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struct tchars tc;
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struct tchars tc;
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struct ltchars ltc;
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struct ltchars ltc;
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/* Line discipline flags. */
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/* Line discipline flags. */
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int lmode;
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int lmode;
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};
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};
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#endif /* sgtty */
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#endif /* sgtty */
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static int hardwire_open (struct serial *scb, const char *name);
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static int hardwire_open (struct serial *scb, const char *name);
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static void hardwire_raw (struct serial *scb);
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static void hardwire_raw (struct serial *scb);
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static int wait_for (struct serial *scb, int timeout);
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static int wait_for (struct serial *scb, int timeout);
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static int hardwire_readchar (struct serial *scb, int timeout);
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static int hardwire_readchar (struct serial *scb, int timeout);
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static int do_hardwire_readchar (struct serial *scb, int timeout);
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static int do_hardwire_readchar (struct serial *scb, int timeout);
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static int rate_to_code (int rate);
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static int rate_to_code (int rate);
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static int hardwire_setbaudrate (struct serial *scb, int rate);
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static int hardwire_setbaudrate (struct serial *scb, int rate);
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static void hardwire_close (struct serial *scb);
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static void hardwire_close (struct serial *scb);
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static int get_tty_state (struct serial *scb,
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static int get_tty_state (struct serial *scb,
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struct hardwire_ttystate * state);
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struct hardwire_ttystate * state);
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static int set_tty_state (struct serial *scb,
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static int set_tty_state (struct serial *scb,
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struct hardwire_ttystate * state);
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struct hardwire_ttystate * state);
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static serial_ttystate hardwire_get_tty_state (struct serial *scb);
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static serial_ttystate hardwire_get_tty_state (struct serial *scb);
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static int hardwire_set_tty_state (struct serial *scb, serial_ttystate state);
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static int hardwire_set_tty_state (struct serial *scb, serial_ttystate state);
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static int hardwire_noflush_set_tty_state (struct serial *, serial_ttystate,
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static int hardwire_noflush_set_tty_state (struct serial *, serial_ttystate,
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serial_ttystate);
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serial_ttystate);
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static void hardwire_print_tty_state (struct serial *, serial_ttystate,
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static void hardwire_print_tty_state (struct serial *, serial_ttystate,
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struct ui_file *);
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struct ui_file *);
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static int hardwire_drain_output (struct serial *);
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static int hardwire_drain_output (struct serial *);
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static int hardwire_flush_output (struct serial *);
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static int hardwire_flush_output (struct serial *);
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static int hardwire_flush_input (struct serial *);
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static int hardwire_flush_input (struct serial *);
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static int hardwire_send_break (struct serial *);
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static int hardwire_send_break (struct serial *);
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static int hardwire_setstopbits (struct serial *, int);
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static int hardwire_setstopbits (struct serial *, int);
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void _initialize_ser_hardwire (void);
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void _initialize_ser_hardwire (void);
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/* Open up a real live device for serial I/O */
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/* Open up a real live device for serial I/O */
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static int
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static int
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hardwire_open (struct serial *scb, const char *name)
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hardwire_open (struct serial *scb, const char *name)
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{
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{
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scb->fd = open (name, O_RDWR);
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scb->fd = open (name, O_RDWR);
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if (scb->fd < 0)
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if (scb->fd < 0)
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return -1;
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return -1;
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return 0;
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return 0;
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}
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}
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static int
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static int
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get_tty_state (struct serial *scb, struct hardwire_ttystate *state)
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get_tty_state (struct serial *scb, struct hardwire_ttystate *state)
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{
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{
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#ifdef HAVE_TERMIOS
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#ifdef HAVE_TERMIOS
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if (tcgetattr (scb->fd, &state->termios) < 0)
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if (tcgetattr (scb->fd, &state->termios) < 0)
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return -1;
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return -1;
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return 0;
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return 0;
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#endif
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#endif
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#ifdef HAVE_TERMIO
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#ifdef HAVE_TERMIO
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if (ioctl (scb->fd, TCGETA, &state->termio) < 0)
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if (ioctl (scb->fd, TCGETA, &state->termio) < 0)
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return -1;
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return -1;
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return 0;
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return 0;
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#endif
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#endif
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#ifdef HAVE_SGTTY
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#ifdef HAVE_SGTTY
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if (ioctl (scb->fd, TIOCGETP, &state->sgttyb) < 0)
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if (ioctl (scb->fd, TIOCGETP, &state->sgttyb) < 0)
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return -1;
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return -1;
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if (ioctl (scb->fd, TIOCGETC, &state->tc) < 0)
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if (ioctl (scb->fd, TIOCGETC, &state->tc) < 0)
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return -1;
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return -1;
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if (ioctl (scb->fd, TIOCGLTC, &state->ltc) < 0)
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if (ioctl (scb->fd, TIOCGLTC, &state->ltc) < 0)
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return -1;
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return -1;
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if (ioctl (scb->fd, TIOCLGET, &state->lmode) < 0)
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if (ioctl (scb->fd, TIOCLGET, &state->lmode) < 0)
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return -1;
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return -1;
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return 0;
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return 0;
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#endif
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#endif
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}
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}
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static int
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static int
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set_tty_state (struct serial *scb, struct hardwire_ttystate *state)
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set_tty_state (struct serial *scb, struct hardwire_ttystate *state)
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{
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{
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#ifdef HAVE_TERMIOS
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#ifdef HAVE_TERMIOS
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if (tcsetattr (scb->fd, TCSANOW, &state->termios) < 0)
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if (tcsetattr (scb->fd, TCSANOW, &state->termios) < 0)
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return -1;
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return -1;
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return 0;
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return 0;
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#endif
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#endif
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#ifdef HAVE_TERMIO
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#ifdef HAVE_TERMIO
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if (ioctl (scb->fd, TCSETA, &state->termio) < 0)
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if (ioctl (scb->fd, TCSETA, &state->termio) < 0)
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return -1;
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return -1;
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return 0;
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return 0;
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#endif
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#endif
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#ifdef HAVE_SGTTY
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#ifdef HAVE_SGTTY
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if (ioctl (scb->fd, TIOCSETN, &state->sgttyb) < 0)
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if (ioctl (scb->fd, TIOCSETN, &state->sgttyb) < 0)
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return -1;
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return -1;
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if (ioctl (scb->fd, TIOCSETC, &state->tc) < 0)
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if (ioctl (scb->fd, TIOCSETC, &state->tc) < 0)
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return -1;
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return -1;
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if (ioctl (scb->fd, TIOCSLTC, &state->ltc) < 0)
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if (ioctl (scb->fd, TIOCSLTC, &state->ltc) < 0)
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return -1;
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return -1;
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if (ioctl (scb->fd, TIOCLSET, &state->lmode) < 0)
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if (ioctl (scb->fd, TIOCLSET, &state->lmode) < 0)
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return -1;
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return -1;
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return 0;
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return 0;
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#endif
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#endif
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}
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}
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static serial_ttystate
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static serial_ttystate
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hardwire_get_tty_state (struct serial *scb)
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hardwire_get_tty_state (struct serial *scb)
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{
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{
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struct hardwire_ttystate *state;
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struct hardwire_ttystate *state;
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state = (struct hardwire_ttystate *) xmalloc (sizeof *state);
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state = (struct hardwire_ttystate *) xmalloc (sizeof *state);
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if (get_tty_state (scb, state))
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if (get_tty_state (scb, state))
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return NULL;
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return NULL;
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return (serial_ttystate) state;
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return (serial_ttystate) state;
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}
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}
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static int
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static int
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hardwire_set_tty_state (struct serial *scb, serial_ttystate ttystate)
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hardwire_set_tty_state (struct serial *scb, serial_ttystate ttystate)
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{
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{
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struct hardwire_ttystate *state;
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struct hardwire_ttystate *state;
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state = (struct hardwire_ttystate *) ttystate;
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state = (struct hardwire_ttystate *) ttystate;
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return set_tty_state (scb, state);
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return set_tty_state (scb, state);
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}
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}
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static int
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static int
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hardwire_noflush_set_tty_state (struct serial *scb,
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hardwire_noflush_set_tty_state (struct serial *scb,
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serial_ttystate new_ttystate,
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serial_ttystate new_ttystate,
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serial_ttystate old_ttystate)
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serial_ttystate old_ttystate)
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{
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{
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struct hardwire_ttystate new_state;
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struct hardwire_ttystate new_state;
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#ifdef HAVE_SGTTY
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#ifdef HAVE_SGTTY
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struct hardwire_ttystate *state = (struct hardwire_ttystate *) old_ttystate;
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struct hardwire_ttystate *state = (struct hardwire_ttystate *) old_ttystate;
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#endif
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#endif
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new_state = *(struct hardwire_ttystate *) new_ttystate;
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new_state = *(struct hardwire_ttystate *) new_ttystate;
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/* Don't change in or out of raw mode; we don't want to flush input.
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/* Don't change in or out of raw mode; we don't want to flush input.
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termio and termios have no such restriction; for them flushing input
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termio and termios have no such restriction; for them flushing input
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is separate from setting the attributes. */
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is separate from setting the attributes. */
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#ifdef HAVE_SGTTY
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#ifdef HAVE_SGTTY
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if (state->sgttyb.sg_flags & RAW)
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if (state->sgttyb.sg_flags & RAW)
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new_state.sgttyb.sg_flags |= RAW;
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new_state.sgttyb.sg_flags |= RAW;
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else
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else
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new_state.sgttyb.sg_flags &= ~RAW;
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new_state.sgttyb.sg_flags &= ~RAW;
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/* I'm not sure whether this is necessary; the manpage just mentions
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/* I'm not sure whether this is necessary; the manpage just mentions
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RAW not CBREAK. */
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RAW not CBREAK. */
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if (state->sgttyb.sg_flags & CBREAK)
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if (state->sgttyb.sg_flags & CBREAK)
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new_state.sgttyb.sg_flags |= CBREAK;
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new_state.sgttyb.sg_flags |= CBREAK;
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else
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else
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new_state.sgttyb.sg_flags &= ~CBREAK;
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new_state.sgttyb.sg_flags &= ~CBREAK;
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#endif
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#endif
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return set_tty_state (scb, &new_state);
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return set_tty_state (scb, &new_state);
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}
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}
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static void
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static void
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hardwire_print_tty_state (struct serial *scb,
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hardwire_print_tty_state (struct serial *scb,
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serial_ttystate ttystate,
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serial_ttystate ttystate,
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struct ui_file *stream)
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struct ui_file *stream)
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{
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{
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struct hardwire_ttystate *state = (struct hardwire_ttystate *) ttystate;
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struct hardwire_ttystate *state = (struct hardwire_ttystate *) ttystate;
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int i;
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int i;
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#ifdef HAVE_TERMIOS
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#ifdef HAVE_TERMIOS
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fprintf_filtered (stream, "c_iflag = 0x%x, c_oflag = 0x%x,\n",
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fprintf_filtered (stream, "c_iflag = 0x%x, c_oflag = 0x%x,\n",
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(int) state->termios.c_iflag,
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(int) state->termios.c_iflag,
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(int) state->termios.c_oflag);
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(int) state->termios.c_oflag);
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fprintf_filtered (stream, "c_cflag = 0x%x, c_lflag = 0x%x\n",
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fprintf_filtered (stream, "c_cflag = 0x%x, c_lflag = 0x%x\n",
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(int) state->termios.c_cflag,
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(int) state->termios.c_cflag,
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(int) state->termios.c_lflag);
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(int) state->termios.c_lflag);
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#if 0
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#if 0
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/* This not in POSIX, and is not really documented by those systems
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/* This not in POSIX, and is not really documented by those systems
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which have it (at least not Sun). */
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which have it (at least not Sun). */
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fprintf_filtered (stream, "c_line = 0x%x.\n", state->termios.c_line);
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fprintf_filtered (stream, "c_line = 0x%x.\n", state->termios.c_line);
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#endif
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#endif
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fprintf_filtered (stream, "c_cc: ");
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fprintf_filtered (stream, "c_cc: ");
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for (i = 0; i < NCCS; i += 1)
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for (i = 0; i < NCCS; i += 1)
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fprintf_filtered (stream, "0x%x ", state->termios.c_cc[i]);
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fprintf_filtered (stream, "0x%x ", state->termios.c_cc[i]);
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fprintf_filtered (stream, "\n");
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fprintf_filtered (stream, "\n");
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#endif
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#endif
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#ifdef HAVE_TERMIO
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#ifdef HAVE_TERMIO
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fprintf_filtered (stream, "c_iflag = 0x%x, c_oflag = 0x%x,\n",
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fprintf_filtered (stream, "c_iflag = 0x%x, c_oflag = 0x%x,\n",
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state->termio.c_iflag, state->termio.c_oflag);
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state->termio.c_iflag, state->termio.c_oflag);
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fprintf_filtered (stream, "c_cflag = 0x%x, c_lflag = 0x%x, c_line = 0x%x.\n",
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fprintf_filtered (stream, "c_cflag = 0x%x, c_lflag = 0x%x, c_line = 0x%x.\n",
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state->termio.c_cflag, state->termio.c_lflag,
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state->termio.c_cflag, state->termio.c_lflag,
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state->termio.c_line);
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state->termio.c_line);
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fprintf_filtered (stream, "c_cc: ");
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fprintf_filtered (stream, "c_cc: ");
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for (i = 0; i < NCC; i += 1)
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for (i = 0; i < NCC; i += 1)
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fprintf_filtered (stream, "0x%x ", state->termio.c_cc[i]);
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fprintf_filtered (stream, "0x%x ", state->termio.c_cc[i]);
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fprintf_filtered (stream, "\n");
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fprintf_filtered (stream, "\n");
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#endif
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#endif
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|
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#ifdef HAVE_SGTTY
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#ifdef HAVE_SGTTY
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fprintf_filtered (stream, "sgttyb.sg_flags = 0x%x.\n",
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fprintf_filtered (stream, "sgttyb.sg_flags = 0x%x.\n",
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state->sgttyb.sg_flags);
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state->sgttyb.sg_flags);
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|
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fprintf_filtered (stream, "tchars: ");
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fprintf_filtered (stream, "tchars: ");
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for (i = 0; i < (int) sizeof (struct tchars); i++)
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for (i = 0; i < (int) sizeof (struct tchars); i++)
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fprintf_filtered (stream, "0x%x ", ((unsigned char *) &state->tc)[i]);
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fprintf_filtered (stream, "0x%x ", ((unsigned char *) &state->tc)[i]);
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fprintf_filtered (stream, "\n");
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fprintf_filtered (stream, "\n");
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|
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fprintf_filtered (stream, "ltchars: ");
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fprintf_filtered (stream, "ltchars: ");
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for (i = 0; i < (int) sizeof (struct ltchars); i++)
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for (i = 0; i < (int) sizeof (struct ltchars); i++)
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fprintf_filtered (stream, "0x%x ", ((unsigned char *) &state->ltc)[i]);
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fprintf_filtered (stream, "0x%x ", ((unsigned char *) &state->ltc)[i]);
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fprintf_filtered (stream, "\n");
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fprintf_filtered (stream, "\n");
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|
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fprintf_filtered (stream, "lmode: 0x%x\n", state->lmode);
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fprintf_filtered (stream, "lmode: 0x%x\n", state->lmode);
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#endif
|
#endif
|
}
|
}
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|
|
/* 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 */
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|
|
static int
|
static int
|
hardwire_drain_output (struct serial *scb)
|
hardwire_drain_output (struct serial *scb)
|
{
|
{
|
#ifdef HAVE_TERMIOS
|
#ifdef HAVE_TERMIOS
|
return tcdrain (scb->fd);
|
return tcdrain (scb->fd);
|
#endif
|
#endif
|
|
|
#ifdef HAVE_TERMIO
|
#ifdef HAVE_TERMIO
|
return ioctl (scb->fd, TCSBRK, 1);
|
return ioctl (scb->fd, TCSBRK, 1);
|
#endif
|
#endif
|
|
|
#ifdef HAVE_SGTTY
|
#ifdef HAVE_SGTTY
|
/* Get the current state and then restore it using TIOCSETP,
|
/* Get the current state and then restore it using TIOCSETP,
|
which should cause the output to drain and pending input
|
which should cause the output to drain and pending input
|
to be discarded. */
|
to be discarded. */
|
{
|
{
|
struct hardwire_ttystate state;
|
struct hardwire_ttystate state;
|
if (get_tty_state (scb, &state))
|
if (get_tty_state (scb, &state))
|
{
|
{
|
return (-1);
|
return (-1);
|
}
|
}
|
else
|
else
|
{
|
{
|
return (ioctl (scb->fd, TIOCSETP, &state.sgttyb));
|
return (ioctl (scb->fd, TIOCSETP, &state.sgttyb));
|
}
|
}
|
}
|
}
|
#endif
|
#endif
|
}
|
}
|
|
|
static int
|
static int
|
hardwire_flush_output (struct serial *scb)
|
hardwire_flush_output (struct serial *scb)
|
{
|
{
|
#ifdef HAVE_TERMIOS
|
#ifdef HAVE_TERMIOS
|
return tcflush (scb->fd, TCOFLUSH);
|
return tcflush (scb->fd, TCOFLUSH);
|
#endif
|
#endif
|
|
|
#ifdef HAVE_TERMIO
|
#ifdef HAVE_TERMIO
|
return ioctl (scb->fd, TCFLSH, 1);
|
return ioctl (scb->fd, TCFLSH, 1);
|
#endif
|
#endif
|
|
|
#ifdef HAVE_SGTTY
|
#ifdef HAVE_SGTTY
|
/* This flushes both input and output, but we can't do better. */
|
/* This flushes both input and output, but we can't do better. */
|
return ioctl (scb->fd, TIOCFLUSH, 0);
|
return ioctl (scb->fd, TIOCFLUSH, 0);
|
#endif
|
#endif
|
}
|
}
|
|
|
static int
|
static int
|
hardwire_flush_input (struct serial *scb)
|
hardwire_flush_input (struct serial *scb)
|
{
|
{
|
ser_base_flush_input (scb);
|
ser_base_flush_input (scb);
|
|
|
#ifdef HAVE_TERMIOS
|
#ifdef HAVE_TERMIOS
|
return tcflush (scb->fd, TCIFLUSH);
|
return tcflush (scb->fd, TCIFLUSH);
|
#endif
|
#endif
|
|
|
#ifdef HAVE_TERMIO
|
#ifdef HAVE_TERMIO
|
return ioctl (scb->fd, TCFLSH, 0);
|
return ioctl (scb->fd, TCFLSH, 0);
|
#endif
|
#endif
|
|
|
#ifdef HAVE_SGTTY
|
#ifdef HAVE_SGTTY
|
/* This flushes both input and output, but we can't do better. */
|
/* This flushes both input and output, but we can't do better. */
|
return ioctl (scb->fd, TIOCFLUSH, 0);
|
return ioctl (scb->fd, TIOCFLUSH, 0);
|
#endif
|
#endif
|
}
|
}
|
|
|
static int
|
static int
|
hardwire_send_break (struct serial *scb)
|
hardwire_send_break (struct serial *scb)
|
{
|
{
|
#ifdef HAVE_TERMIOS
|
#ifdef HAVE_TERMIOS
|
return tcsendbreak (scb->fd, 0);
|
return tcsendbreak (scb->fd, 0);
|
#endif
|
#endif
|
|
|
#ifdef HAVE_TERMIO
|
#ifdef HAVE_TERMIO
|
return ioctl (scb->fd, TCSBRK, 0);
|
return ioctl (scb->fd, TCSBRK, 0);
|
#endif
|
#endif
|
|
|
#ifdef HAVE_SGTTY
|
#ifdef HAVE_SGTTY
|
{
|
{
|
int status;
|
int status;
|
struct timeval timeout;
|
struct timeval timeout;
|
|
|
status = ioctl (scb->fd, TIOCSBRK, 0);
|
status = ioctl (scb->fd, TIOCSBRK, 0);
|
|
|
/* Can't use usleep; it doesn't exist in BSD 4.2. */
|
/* 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
|
/* Note that if this select() is interrupted by a signal it will not wait
|
the full length of time. I think that is OK. */
|
the full length of time. I think that is OK. */
|
timeout.tv_sec = 0;
|
timeout.tv_sec = 0;
|
timeout.tv_usec = 250000;
|
timeout.tv_usec = 250000;
|
gdb_select (0, 0, 0, 0, &timeout);
|
gdb_select (0, 0, 0, 0, &timeout);
|
status = ioctl (scb->fd, TIOCCBRK, 0);
|
status = ioctl (scb->fd, TIOCCBRK, 0);
|
return status;
|
return status;
|
}
|
}
|
#endif
|
#endif
|
}
|
}
|
|
|
static void
|
static void
|
hardwire_raw (struct serial *scb)
|
hardwire_raw (struct serial *scb)
|
{
|
{
|
struct hardwire_ttystate state;
|
struct hardwire_ttystate state;
|
|
|
if (get_tty_state (scb, &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
|
#ifdef HAVE_TERMIOS
|
state.termios.c_iflag = 0;
|
state.termios.c_iflag = 0;
|
state.termios.c_oflag = 0;
|
state.termios.c_oflag = 0;
|
state.termios.c_lflag = 0;
|
state.termios.c_lflag = 0;
|
state.termios.c_cflag &= ~(CSIZE | PARENB);
|
state.termios.c_cflag &= ~(CSIZE | PARENB);
|
state.termios.c_cflag |= CLOCAL | CS8;
|
state.termios.c_cflag |= CLOCAL | CS8;
|
#ifdef CRTSCTS
|
#ifdef CRTSCTS
|
/* h/w flow control. */
|
/* h/w flow control. */
|
if (serial_hwflow)
|
if (serial_hwflow)
|
state.termios.c_cflag |= CRTSCTS;
|
state.termios.c_cflag |= CRTSCTS;
|
else
|
else
|
state.termios.c_cflag &= ~CRTSCTS;
|
state.termios.c_cflag &= ~CRTSCTS;
|
#ifdef CRTS_IFLOW
|
#ifdef CRTS_IFLOW
|
if (serial_hwflow)
|
if (serial_hwflow)
|
state.termios.c_cflag |= CRTS_IFLOW;
|
state.termios.c_cflag |= CRTS_IFLOW;
|
else
|
else
|
state.termios.c_cflag &= ~CRTS_IFLOW;
|
state.termios.c_cflag &= ~CRTS_IFLOW;
|
#endif
|
#endif
|
#endif
|
#endif
|
state.termios.c_cc[VMIN] = 0;
|
state.termios.c_cc[VMIN] = 0;
|
state.termios.c_cc[VTIME] = 0;
|
state.termios.c_cc[VTIME] = 0;
|
#endif
|
#endif
|
|
|
#ifdef HAVE_TERMIO
|
#ifdef HAVE_TERMIO
|
state.termio.c_iflag = 0;
|
state.termio.c_iflag = 0;
|
state.termio.c_oflag = 0;
|
state.termio.c_oflag = 0;
|
state.termio.c_lflag = 0;
|
state.termio.c_lflag = 0;
|
state.termio.c_cflag &= ~(CSIZE | PARENB);
|
state.termio.c_cflag &= ~(CSIZE | PARENB);
|
state.termio.c_cflag |= CLOCAL | CS8;
|
state.termio.c_cflag |= CLOCAL | CS8;
|
state.termio.c_cc[VMIN] = 0;
|
state.termio.c_cc[VMIN] = 0;
|
state.termio.c_cc[VTIME] = 0;
|
state.termio.c_cc[VTIME] = 0;
|
#endif
|
#endif
|
|
|
#ifdef HAVE_SGTTY
|
#ifdef HAVE_SGTTY
|
state.sgttyb.sg_flags |= RAW | ANYP;
|
state.sgttyb.sg_flags |= RAW | ANYP;
|
state.sgttyb.sg_flags &= ~(CBREAK | ECHO);
|
state.sgttyb.sg_flags &= ~(CBREAK | ECHO);
|
#endif
|
#endif
|
|
|
scb->current_timeout = 0;
|
scb->current_timeout = 0;
|
|
|
if (set_tty_state (scb, &state))
|
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,
|
/* Wait for input on scb, with timeout seconds. Returns 0 on success,
|
otherwise SERIAL_TIMEOUT or SERIAL_ERROR.
|
otherwise SERIAL_TIMEOUT or SERIAL_ERROR.
|
|
|
For termio{s}, we actually just setup VTIME if necessary, and let the
|
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
|
/* FIXME: cagney/1999-09-16: Don't replace this with the equivalent
|
ser_base*() until the old TERMIOS/SGTTY/... timer code has been
|
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
|
/* NOTE: cagney/1999-09-30: Much of the code below is dead. The only
|
possible values of the TIMEOUT parameter are ONE and ZERO.
|
possible values of the TIMEOUT parameter are ONE and ZERO.
|
Consequently all the code that tries to handle the possability of
|
Consequently all the code that tries to handle the possability of
|
an overflowed timer is unnecessary. */
|
an overflowed timer is unnecessary. */
|
|
|
static int
|
static int
|
wait_for (struct serial *scb, int timeout)
|
wait_for (struct serial *scb, int timeout)
|
{
|
{
|
#ifdef HAVE_SGTTY
|
#ifdef HAVE_SGTTY
|
while (1)
|
while (1)
|
{
|
{
|
struct timeval tv;
|
struct timeval tv;
|
fd_set readfds;
|
fd_set readfds;
|
int numfds;
|
int numfds;
|
|
|
/* NOTE: Some OS's can scramble the READFDS when the select()
|
/* NOTE: Some OS's can scramble the READFDS when the select()
|
call fails (ex the kernel with Red Hat 5.2). Initialize all
|
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_sec = timeout;
|
tv.tv_usec = 0;
|
tv.tv_usec = 0;
|
|
|
FD_ZERO (&readfds);
|
FD_ZERO (&readfds);
|
FD_SET (scb->fd, &readfds);
|
FD_SET (scb->fd, &readfds);
|
|
|
if (timeout >= 0)
|
if (timeout >= 0)
|
numfds = gdb_select (scb->fd + 1, &readfds, 0, 0, &tv);
|
numfds = gdb_select (scb->fd + 1, &readfds, 0, 0, &tv);
|
else
|
else
|
numfds = gdb_select (scb->fd + 1, &readfds, 0, 0, 0);
|
numfds = gdb_select (scb->fd + 1, &readfds, 0, 0, 0);
|
|
|
if (numfds <= 0)
|
if (numfds <= 0)
|
if (numfds == 0)
|
if (numfds == 0)
|
return SERIAL_TIMEOUT;
|
return SERIAL_TIMEOUT;
|
else if (errno == EINTR)
|
else if (errno == EINTR)
|
continue;
|
continue;
|
else
|
else
|
return SERIAL_ERROR; /* Got an error from select or poll */
|
return SERIAL_ERROR; /* Got an error from select or poll */
|
|
|
return 0;
|
return 0;
|
}
|
}
|
#endif /* HAVE_SGTTY */
|
#endif /* HAVE_SGTTY */
|
|
|
#if defined HAVE_TERMIO || defined HAVE_TERMIOS
|
#if defined HAVE_TERMIO || defined HAVE_TERMIOS
|
if (timeout == scb->current_timeout)
|
if (timeout == scb->current_timeout)
|
return 0;
|
return 0;
|
|
|
scb->current_timeout = timeout;
|
scb->current_timeout = timeout;
|
|
|
{
|
{
|
struct hardwire_ttystate state;
|
struct hardwire_ttystate state;
|
|
|
if (get_tty_state (scb, &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
|
#ifdef HAVE_TERMIOS
|
if (timeout < 0)
|
if (timeout < 0)
|
{
|
{
|
/* No timeout. */
|
/* No timeout. */
|
state.termios.c_cc[VTIME] = 0;
|
state.termios.c_cc[VTIME] = 0;
|
state.termios.c_cc[VMIN] = 1;
|
state.termios.c_cc[VMIN] = 1;
|
}
|
}
|
else
|
else
|
{
|
{
|
state.termios.c_cc[VMIN] = 0;
|
state.termios.c_cc[VMIN] = 0;
|
state.termios.c_cc[VTIME] = timeout * 10;
|
state.termios.c_cc[VTIME] = timeout * 10;
|
if (state.termios.c_cc[VTIME] != timeout * 10)
|
if (state.termios.c_cc[VTIME] != timeout * 10)
|
{
|
{
|
|
|
/* If c_cc is an 8-bit signed character, we can't go
|
/* If c_cc is an 8-bit signed character, we can't go
|
bigger than this. If it is always unsigned, we could use
|
bigger than this. If it is always unsigned, we could use
|
25. */
|
25. */
|
|
|
scb->current_timeout = 12;
|
scb->current_timeout = 12;
|
state.termios.c_cc[VTIME] = scb->current_timeout * 10;
|
state.termios.c_cc[VTIME] = scb->current_timeout * 10;
|
scb->timeout_remaining = timeout - scb->current_timeout;
|
scb->timeout_remaining = timeout - scb->current_timeout;
|
}
|
}
|
}
|
}
|
#endif
|
#endif
|
|
|
#ifdef HAVE_TERMIO
|
#ifdef HAVE_TERMIO
|
if (timeout < 0)
|
if (timeout < 0)
|
{
|
{
|
/* No timeout. */
|
/* No timeout. */
|
state.termio.c_cc[VTIME] = 0;
|
state.termio.c_cc[VTIME] = 0;
|
state.termio.c_cc[VMIN] = 1;
|
state.termio.c_cc[VMIN] = 1;
|
}
|
}
|
else
|
else
|
{
|
{
|
state.termio.c_cc[VMIN] = 0;
|
state.termio.c_cc[VMIN] = 0;
|
state.termio.c_cc[VTIME] = timeout * 10;
|
state.termio.c_cc[VTIME] = timeout * 10;
|
if (state.termio.c_cc[VTIME] != timeout * 10)
|
if (state.termio.c_cc[VTIME] != timeout * 10)
|
{
|
{
|
/* If c_cc is an 8-bit signed character, we can't go
|
/* If c_cc is an 8-bit signed character, we can't go
|
bigger than this. If it is always unsigned, we could use
|
bigger than this. If it is always unsigned, we could use
|
25. */
|
25. */
|
|
|
scb->current_timeout = 12;
|
scb->current_timeout = 12;
|
state.termio.c_cc[VTIME] = scb->current_timeout * 10;
|
state.termio.c_cc[VTIME] = scb->current_timeout * 10;
|
scb->timeout_remaining = timeout - scb->current_timeout;
|
scb->timeout_remaining = timeout - scb->current_timeout;
|
}
|
}
|
}
|
}
|
#endif
|
#endif
|
|
|
if (set_tty_state (scb, &state))
|
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;
|
return 0;
|
}
|
}
|
#endif /* HAVE_TERMIO || HAVE_TERMIOS */
|
#endif /* HAVE_TERMIO || HAVE_TERMIOS */
|
}
|
}
|
|
|
/* Read a character with user-specified timeout. TIMEOUT is number of seconds
|
/* 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
|
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
|
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). */
|
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
|
/* FIXME: cagney/1999-09-16: Don't replace this with the equivalent
|
ser_base*() until the old TERMIOS/SGTTY/... timer code has been
|
ser_base*() until the old TERMIOS/SGTTY/... timer code has been
|
flushed. */
|
flushed. */
|
|
|
/* NOTE: cagney/1999-09-16: This function is not identical to
|
/* NOTE: cagney/1999-09-16: This function is not identical to
|
ser_base_readchar() as part of replacing it with ser_base*()
|
ser_base_readchar() as part of replacing it with ser_base*()
|
merging will be required - this code handles the case where read()
|
merging will be required - this code handles the case where read()
|
times out due to no data while ser_base_readchar() doesn't expect
|
times out due to no data while ser_base_readchar() doesn't expect
|
that. */
|
that. */
|
|
|
static int
|
static int
|
do_hardwire_readchar (struct serial *scb, int timeout)
|
do_hardwire_readchar (struct serial *scb, int timeout)
|
{
|
{
|
int status, delta;
|
int status, delta;
|
int detach = 0;
|
int detach = 0;
|
|
|
if (timeout > 0)
|
if (timeout > 0)
|
timeout++;
|
timeout++;
|
|
|
/* We have to be able to keep the GUI alive here, so we break the
|
/* We have to be able to keep the GUI alive here, so we break the
|
original timeout into steps of 1 second, running the "keep the
|
original timeout into steps of 1 second, running the "keep the
|
GUI alive" hook each time through the loop.
|
GUI alive" hook each time through the loop.
|
|
|
Also, timeout = 0 means to poll, so we just set the delta to 0,
|
Also, timeout = 0 means to poll, so we just set the delta to 0,
|
so we will only go through the loop once. */
|
so we will only go through the loop once. */
|
|
|
delta = (timeout == 0 ? 0 : 1);
|
delta = (timeout == 0 ? 0 : 1);
|
while (1)
|
while (1)
|
{
|
{
|
|
|
/* N.B. The UI may destroy our world (for instance by calling
|
/* N.B. The UI may destroy our world (for instance by calling
|
remote_stop,) in which case we want to get out of here as
|
remote_stop,) in which case we want to get out of here as
|
quickly as possible. It is not safe to touch scb, since
|
quickly as possible. It is not safe to touch scb, since
|
someone else might have freed it. The
|
someone else might have freed it. The
|
deprecated_ui_loop_hook signals that we should exit by
|
deprecated_ui_loop_hook signals that we should exit by
|
returning 1. */
|
returning 1. */
|
|
|
if (deprecated_ui_loop_hook)
|
if (deprecated_ui_loop_hook)
|
detach = deprecated_ui_loop_hook (0);
|
detach = deprecated_ui_loop_hook (0);
|
|
|
if (detach)
|
if (detach)
|
return SERIAL_TIMEOUT;
|
return SERIAL_TIMEOUT;
|
|
|
scb->timeout_remaining = (timeout < 0 ? timeout : timeout - delta);
|
scb->timeout_remaining = (timeout < 0 ? timeout : timeout - delta);
|
status = wait_for (scb, delta);
|
status = wait_for (scb, delta);
|
|
|
if (status < 0)
|
if (status < 0)
|
return status;
|
return status;
|
|
|
status = read (scb->fd, scb->buf, BUFSIZ);
|
status = read (scb->fd, scb->buf, BUFSIZ);
|
|
|
if (status <= 0)
|
if (status <= 0)
|
{
|
{
|
if (status == 0)
|
if (status == 0)
|
{
|
{
|
/* Zero characters means timeout (it could also be EOF, but
|
/* Zero characters means timeout (it could also be EOF, but
|
we don't (yet at least) distinguish). */
|
we don't (yet at least) distinguish). */
|
if (scb->timeout_remaining > 0)
|
if (scb->timeout_remaining > 0)
|
{
|
{
|
timeout = scb->timeout_remaining;
|
timeout = scb->timeout_remaining;
|
continue;
|
continue;
|
}
|
}
|
else if (scb->timeout_remaining < 0)
|
else if (scb->timeout_remaining < 0)
|
continue;
|
continue;
|
else
|
else
|
return SERIAL_TIMEOUT;
|
return SERIAL_TIMEOUT;
|
}
|
}
|
else if (errno == EINTR)
|
else if (errno == EINTR)
|
continue;
|
continue;
|
else
|
else
|
return SERIAL_ERROR; /* Got an error from read */
|
return SERIAL_ERROR; /* Got an error from read */
|
}
|
}
|
|
|
scb->bufcnt = status;
|
scb->bufcnt = status;
|
scb->bufcnt--;
|
scb->bufcnt--;
|
scb->bufp = scb->buf;
|
scb->bufp = scb->buf;
|
return *scb->bufp++;
|
return *scb->bufp++;
|
}
|
}
|
}
|
}
|
|
|
static int
|
static int
|
hardwire_readchar (struct serial *scb, int timeout)
|
hardwire_readchar (struct serial *scb, int timeout)
|
{
|
{
|
return generic_readchar (scb, timeout, do_hardwire_readchar);
|
return generic_readchar (scb, timeout, do_hardwire_readchar);
|
}
|
}
|
|
|
|
|
#ifndef B19200
|
#ifndef B19200
|
#define B19200 EXTA
|
#define B19200 EXTA
|
#endif
|
#endif
|
|
|
#ifndef B38400
|
#ifndef B38400
|
#define B38400 EXTB
|
#define B38400 EXTB
|
#endif
|
#endif
|
|
|
/* Translate baud rates from integers to damn B_codes. Unix should
|
/* Translate baud rates from integers to damn B_codes. Unix should
|
have outgrown this crap years ago, but even POSIX wouldn't buck it. */
|
have outgrown this crap years ago, but even POSIX wouldn't buck it. */
|
|
|
static struct
|
static struct
|
{
|
{
|
int rate;
|
int rate;
|
int code;
|
int code;
|
}
|
}
|
baudtab[] =
|
baudtab[] =
|
{
|
{
|
{
|
{
|
50, B50
|
50, B50
|
}
|
}
|
,
|
,
|
{
|
{
|
75, B75
|
75, B75
|
}
|
}
|
,
|
,
|
{
|
{
|
110, B110
|
110, B110
|
}
|
}
|
,
|
,
|
{
|
{
|
134, B134
|
134, B134
|
}
|
}
|
,
|
,
|
{
|
{
|
150, B150
|
150, B150
|
}
|
}
|
,
|
,
|
{
|
{
|
200, B200
|
200, B200
|
}
|
}
|
,
|
,
|
{
|
{
|
300, B300
|
300, B300
|
}
|
}
|
,
|
,
|
{
|
{
|
600, B600
|
600, B600
|
}
|
}
|
,
|
,
|
{
|
{
|
1200, B1200
|
1200, B1200
|
}
|
}
|
,
|
,
|
{
|
{
|
1800, B1800
|
1800, B1800
|
}
|
}
|
,
|
,
|
{
|
{
|
2400, B2400
|
2400, B2400
|
}
|
}
|
,
|
,
|
{
|
{
|
4800, B4800
|
4800, B4800
|
}
|
}
|
,
|
,
|
{
|
{
|
9600, B9600
|
9600, B9600
|
}
|
}
|
,
|
,
|
{
|
{
|
19200, B19200
|
19200, B19200
|
}
|
}
|
,
|
,
|
{
|
{
|
38400, B38400
|
38400, B38400
|
}
|
}
|
,
|
,
|
#ifdef B57600
|
#ifdef B57600
|
{
|
{
|
57600, B57600
|
57600, B57600
|
}
|
}
|
,
|
,
|
#endif
|
#endif
|
#ifdef B115200
|
#ifdef B115200
|
{
|
{
|
115200, B115200
|
115200, B115200
|
}
|
}
|
,
|
,
|
#endif
|
#endif
|
#ifdef B230400
|
#ifdef B230400
|
{
|
{
|
230400, B230400
|
230400, B230400
|
}
|
}
|
,
|
,
|
#endif
|
#endif
|
#ifdef B460800
|
#ifdef B460800
|
{
|
{
|
460800, B460800
|
460800, B460800
|
}
|
}
|
,
|
,
|
#endif
|
#endif
|
{
|
{
|
-1, -1
|
-1, -1
|
}
|
}
|
,
|
,
|
};
|
};
|
|
|
static int
|
static int
|
rate_to_code (int rate)
|
rate_to_code (int rate)
|
{
|
{
|
int i;
|
int i;
|
|
|
for (i = 0; baudtab[i].rate != -1; i++)
|
for (i = 0; baudtab[i].rate != -1; i++)
|
{
|
{
|
/* test for perfect macth. */
|
/* test for perfect macth. */
|
if (rate == baudtab[i].rate)
|
if (rate == baudtab[i].rate)
|
return baudtab[i].code;
|
return baudtab[i].code;
|
else
|
else
|
{
|
{
|
/* check if it is in between valid values. */
|
/* check if it is in between valid values. */
|
if (rate < baudtab[i].rate)
|
if (rate < baudtab[i].rate)
|
{
|
{
|
if (i)
|
if (i)
|
{
|
{
|
warning (_("Invalid baud rate %d. Closest values are %d and %d."),
|
warning (_("Invalid baud rate %d. Closest values are %d and %d."),
|
rate, baudtab[i - 1].rate, baudtab[i].rate);
|
rate, baudtab[i - 1].rate, baudtab[i].rate);
|
}
|
}
|
else
|
else
|
{
|
{
|
warning (_("Invalid baud rate %d. Minimum value is %d."),
|
warning (_("Invalid baud rate %d. Minimum value is %d."),
|
rate, baudtab[0].rate);
|
rate, baudtab[0].rate);
|
}
|
}
|
return -1;
|
return -1;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* The requested speed was too large. */
|
/* The requested speed was too large. */
|
warning (_("Invalid baud rate %d. Maximum value is %d."),
|
warning (_("Invalid baud rate %d. Maximum value is %d."),
|
rate, baudtab[i - 1].rate);
|
rate, baudtab[i - 1].rate);
|
return -1;
|
return -1;
|
}
|
}
|
|
|
static int
|
static int
|
hardwire_setbaudrate (struct serial *scb, int rate)
|
hardwire_setbaudrate (struct serial *scb, int rate)
|
{
|
{
|
struct hardwire_ttystate state;
|
struct hardwire_ttystate state;
|
int baud_code = rate_to_code (rate);
|
int baud_code = rate_to_code (rate);
|
|
|
if (baud_code < 0)
|
if (baud_code < 0)
|
{
|
{
|
/* The baud rate was not valid.
|
/* The baud rate was not valid.
|
A warning has already been issued. */
|
A warning has already been issued. */
|
errno = EINVAL;
|
errno = EINVAL;
|
return -1;
|
return -1;
|
}
|
}
|
|
|
if (get_tty_state (scb, &state))
|
if (get_tty_state (scb, &state))
|
return -1;
|
return -1;
|
|
|
#ifdef HAVE_TERMIOS
|
#ifdef HAVE_TERMIOS
|
cfsetospeed (&state.termios, baud_code);
|
cfsetospeed (&state.termios, baud_code);
|
cfsetispeed (&state.termios, baud_code);
|
cfsetispeed (&state.termios, baud_code);
|
#endif
|
#endif
|
|
|
#ifdef HAVE_TERMIO
|
#ifdef HAVE_TERMIO
|
#ifndef CIBAUD
|
#ifndef CIBAUD
|
#define CIBAUD CBAUD
|
#define CIBAUD CBAUD
|
#endif
|
#endif
|
|
|
state.termio.c_cflag &= ~(CBAUD | CIBAUD);
|
state.termio.c_cflag &= ~(CBAUD | CIBAUD);
|
state.termio.c_cflag |= baud_code;
|
state.termio.c_cflag |= baud_code;
|
#endif
|
#endif
|
|
|
#ifdef HAVE_SGTTY
|
#ifdef HAVE_SGTTY
|
state.sgttyb.sg_ispeed = baud_code;
|
state.sgttyb.sg_ispeed = baud_code;
|
state.sgttyb.sg_ospeed = baud_code;
|
state.sgttyb.sg_ospeed = baud_code;
|
#endif
|
#endif
|
|
|
return set_tty_state (scb, &state);
|
return set_tty_state (scb, &state);
|
}
|
}
|
|
|
static int
|
static int
|
hardwire_setstopbits (struct serial *scb, int num)
|
hardwire_setstopbits (struct serial *scb, int num)
|
{
|
{
|
struct hardwire_ttystate state;
|
struct hardwire_ttystate state;
|
int newbit;
|
int newbit;
|
|
|
if (get_tty_state (scb, &state))
|
if (get_tty_state (scb, &state))
|
return -1;
|
return -1;
|
|
|
switch (num)
|
switch (num)
|
{
|
{
|
case SERIAL_1_STOPBITS:
|
case SERIAL_1_STOPBITS:
|
newbit = 0;
|
newbit = 0;
|
break;
|
break;
|
case SERIAL_1_AND_A_HALF_STOPBITS:
|
case SERIAL_1_AND_A_HALF_STOPBITS:
|
case SERIAL_2_STOPBITS:
|
case SERIAL_2_STOPBITS:
|
newbit = 1;
|
newbit = 1;
|
break;
|
break;
|
default:
|
default:
|
return 1;
|
return 1;
|
}
|
}
|
|
|
#ifdef HAVE_TERMIOS
|
#ifdef HAVE_TERMIOS
|
if (!newbit)
|
if (!newbit)
|
state.termios.c_cflag &= ~CSTOPB;
|
state.termios.c_cflag &= ~CSTOPB;
|
else
|
else
|
state.termios.c_cflag |= CSTOPB; /* two bits */
|
state.termios.c_cflag |= CSTOPB; /* two bits */
|
#endif
|
#endif
|
|
|
#ifdef HAVE_TERMIO
|
#ifdef HAVE_TERMIO
|
if (!newbit)
|
if (!newbit)
|
state.termio.c_cflag &= ~CSTOPB;
|
state.termio.c_cflag &= ~CSTOPB;
|
else
|
else
|
state.termio.c_cflag |= CSTOPB; /* two bits */
|
state.termio.c_cflag |= CSTOPB; /* two bits */
|
#endif
|
#endif
|
|
|
#ifdef HAVE_SGTTY
|
#ifdef HAVE_SGTTY
|
return 0; /* sgtty doesn't support this */
|
return 0; /* sgtty doesn't support this */
|
#endif
|
#endif
|
|
|
return set_tty_state (scb, &state);
|
return set_tty_state (scb, &state);
|
}
|
}
|
|
|
static void
|
static void
|
hardwire_close (struct serial *scb)
|
hardwire_close (struct serial *scb)
|
{
|
{
|
if (scb->fd < 0)
|
if (scb->fd < 0)
|
return;
|
return;
|
|
|
close (scb->fd);
|
close (scb->fd);
|
scb->fd = -1;
|
scb->fd = -1;
|
}
|
}
|
|
|
|
|
void
|
void
|
_initialize_ser_hardwire (void)
|
_initialize_ser_hardwire (void)
|
{
|
{
|
struct serial_ops *ops = XMALLOC (struct serial_ops);
|
struct serial_ops *ops = XMALLOC (struct serial_ops);
|
memset (ops, 0, sizeof (struct serial_ops));
|
memset (ops, 0, sizeof (struct serial_ops));
|
ops->name = "hardwire";
|
ops->name = "hardwire";
|
ops->next = 0;
|
ops->next = 0;
|
ops->open = hardwire_open;
|
ops->open = hardwire_open;
|
ops->close = hardwire_close;
|
ops->close = hardwire_close;
|
/* FIXME: Don't replace this with the equivalent ser_base*() until
|
/* FIXME: Don't replace this with the equivalent ser_base*() until
|
the old TERMIOS/SGTTY/... timer code has been flushed. cagney
|
the old TERMIOS/SGTTY/... timer code has been flushed. cagney
|
1999-09-16. */
|
1999-09-16. */
|
ops->readchar = hardwire_readchar;
|
ops->readchar = hardwire_readchar;
|
ops->write = ser_base_write;
|
ops->write = ser_base_write;
|
ops->flush_output = hardwire_flush_output;
|
ops->flush_output = hardwire_flush_output;
|
ops->flush_input = hardwire_flush_input;
|
ops->flush_input = hardwire_flush_input;
|
ops->send_break = hardwire_send_break;
|
ops->send_break = hardwire_send_break;
|
ops->go_raw = hardwire_raw;
|
ops->go_raw = hardwire_raw;
|
ops->get_tty_state = hardwire_get_tty_state;
|
ops->get_tty_state = hardwire_get_tty_state;
|
ops->set_tty_state = hardwire_set_tty_state;
|
ops->set_tty_state = hardwire_set_tty_state;
|
ops->print_tty_state = hardwire_print_tty_state;
|
ops->print_tty_state = hardwire_print_tty_state;
|
ops->noflush_set_tty_state = hardwire_noflush_set_tty_state;
|
ops->noflush_set_tty_state = hardwire_noflush_set_tty_state;
|
ops->setbaudrate = hardwire_setbaudrate;
|
ops->setbaudrate = hardwire_setbaudrate;
|
ops->setstopbits = hardwire_setstopbits;
|
ops->setstopbits = hardwire_setstopbits;
|
ops->drain_output = hardwire_drain_output;
|
ops->drain_output = hardwire_drain_output;
|
ops->async = ser_base_async;
|
ops->async = ser_base_async;
|
ops->read_prim = ser_unix_read_prim;
|
ops->read_prim = ser_unix_read_prim;
|
ops->write_prim = ser_unix_write_prim;
|
ops->write_prim = ser_unix_write_prim;
|
serial_add_interface (ops);
|
serial_add_interface (ops);
|
|
|
#ifdef HAVE_TERMIOS
|
#ifdef HAVE_TERMIOS
|
#ifdef CRTSCTS
|
#ifdef CRTSCTS
|
add_setshow_boolean_cmd ("remoteflow", no_class,
|
add_setshow_boolean_cmd ("remoteflow", no_class,
|
&serial_hwflow, _("\
|
&serial_hwflow, _("\
|
Set use of hardware flow control for remote serial I/O."), _("\
|
Set use of hardware flow control for remote serial I/O."), _("\
|
Show 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\
|
Enable or disable hardware flow control (RTS/CTS) on the serial port\n\
|
when debugging using remote targets."),
|
when debugging using remote targets."),
|
NULL,
|
NULL,
|
show_serial_hwflow,
|
show_serial_hwflow,
|
&setlist, &showlist);
|
&setlist, &showlist);
|
#endif
|
#endif
|
#endif
|
#endif
|
}
|
}
|
|
|
int
|
int
|
ser_unix_read_prim (struct serial *scb, size_t count)
|
ser_unix_read_prim (struct serial *scb, size_t count)
|
{
|
{
|
int status;
|
int status;
|
|
|
while (1)
|
while (1)
|
{
|
{
|
status = read (scb->fd, scb->buf, count);
|
status = read (scb->fd, scb->buf, count);
|
if (status != -1 || errno != EINTR)
|
if (status != -1 || errno != EINTR)
|
break;
|
break;
|
}
|
}
|
return status;
|
return status;
|
}
|
}
|
|
|
int
|
int
|
ser_unix_write_prim (struct serial *scb, const void *buf, size_t len)
|
ser_unix_write_prim (struct serial *scb, const void *buf, size_t len)
|
{
|
{
|
/* ??? Historically, GDB has not retried calls to "write" that
|
/* ??? Historically, GDB has not retried calls to "write" that
|
result in EINTR. */
|
result in EINTR. */
|
return write (scb->fd, buf, len);
|
return write (scb->fd, buf, len);
|
}
|
}
|
|
|
