/* Serial interface for local (hardwired) serial ports on Un*x like systems
- Copyright 1992, 1993 Free Software Foundation, Inc.
+ Copyright 1992, 1993, 1994, 1998 Free Software Foundation, Inc.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "serial.h"
#include <fcntl.h>
#include <sys/types.h>
-#include <sys/time.h>
-
-#if !defined (HAVE_TERMIOS) && !defined (HAVE_TERMIO) && !defined (HAVE_SGTTY)
-#define HAVE_SGTTY
+#include "terminal.h"
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
#endif
#ifdef HAVE_TERMIOS
-#include <termios.h>
-#include <unistd.h>
-#endif
+
+struct hardwire_ttystate
+ {
+ struct termios termios;
+ };
+#endif /* termios */
+
#ifdef HAVE_TERMIO
-#include <sys/termio.h>
-#endif
+
+/* It is believed that all systems which have added job control to SVR3
+ (e.g. sco) have also added termios. Even if not, trying to figure out
+ all the variations (TIOCGPGRP vs. TCGETPGRP, etc.) would be pretty
+ bewildering. So we don't attempt it. */
+
+struct hardwire_ttystate
+ {
+ struct termio termio;
+ };
+#endif /* termio */
+
#ifdef HAVE_SGTTY
-#include <sgtty.h>
-#endif
+/* Needed for the code which uses select(). We would include <sys/select.h>
+ too if it existed on all systems. */
+#include <sys/time.h>
+
+struct hardwire_ttystate
+ {
+ struct sgttyb sgttyb;
+ struct tchars tc;
+ struct ltchars ltc;
+ /* Line discipline flags. */
+ int lmode;
+ };
+#endif /* sgtty */
+
+static int hardwire_open PARAMS ((serial_t scb, const char *name));
+static void hardwire_raw PARAMS ((serial_t scb));
+static int wait_for PARAMS ((serial_t scb, int timeout));
+static int hardwire_readchar PARAMS ((serial_t scb, int timeout));
+static int rate_to_code PARAMS ((int rate));
+static int hardwire_setbaudrate PARAMS ((serial_t scb, int rate));
+static int hardwire_write PARAMS ((serial_t scb, const char *str, int len));
+static void hardwire_close PARAMS ((serial_t scb));
+static int get_tty_state PARAMS ((serial_t scb, struct hardwire_ttystate * state));
+static int set_tty_state PARAMS ((serial_t scb, struct hardwire_ttystate * state));
+static serial_ttystate hardwire_get_tty_state PARAMS ((serial_t scb));
+static int hardwire_set_tty_state PARAMS ((serial_t scb, serial_ttystate state));
+static int hardwire_noflush_set_tty_state PARAMS ((serial_t, serial_ttystate,
+ serial_ttystate));
+static void hardwire_print_tty_state PARAMS ((serial_t, serial_ttystate));
+static int hardwire_drain_output PARAMS ((serial_t));
+static int hardwire_flush_output PARAMS ((serial_t));
+static int hardwire_flush_input PARAMS ((serial_t));
+static int hardwire_send_break PARAMS ((serial_t));
+static int hardwire_setstopbits PARAMS ((serial_t, int));
+
+void _initialize_ser_hardwire PARAMS ((void));
+
+extern int (*ui_loop_hook) PARAMS ((int));
/* Open up a real live device for serial I/O */
static int
-hardwire_open(scb, name)
+hardwire_open (scb, name)
serial_t scb;
const char *name;
{
scb->fd = open (name, O_RDWR);
if (scb->fd < 0)
- return errno;
+ return -1;
+
+ return 0;
+}
+
+static int
+get_tty_state (scb, state)
+ serial_t scb;
+ struct hardwire_ttystate *state;
+{
+#ifdef HAVE_TERMIOS
+ if (tcgetattr (scb->fd, &state->termios) < 0)
+ return -1;
return 0;
+#endif
+
+#ifdef HAVE_TERMIO
+ if (ioctl (scb->fd, TCGETA, &state->termio) < 0)
+ return -1;
+ return 0;
+#endif
+
+#ifdef HAVE_SGTTY
+ if (ioctl (scb->fd, TIOCGETP, &state->sgttyb) < 0)
+ return -1;
+ if (ioctl (scb->fd, TIOCGETC, &state->tc) < 0)
+ return -1;
+ if (ioctl (scb->fd, TIOCGLTC, &state->ltc) < 0)
+ return -1;
+ if (ioctl (scb->fd, TIOCLGET, &state->lmode) < 0)
+ return -1;
+
+ return 0;
+#endif
+}
+
+static int
+set_tty_state (scb, state)
+ serial_t scb;
+ struct hardwire_ttystate *state;
+{
+#ifdef HAVE_TERMIOS
+ if (tcsetattr (scb->fd, TCSANOW, &state->termios) < 0)
+ return -1;
+
+ return 0;
+#endif
+
+#ifdef HAVE_TERMIO
+ if (ioctl (scb->fd, TCSETA, &state->termio) < 0)
+ return -1;
+ return 0;
+#endif
+
+#ifdef HAVE_SGTTY
+ if (ioctl (scb->fd, TIOCSETN, &state->sgttyb) < 0)
+ return -1;
+ if (ioctl (scb->fd, TIOCSETC, &state->tc) < 0)
+ return -1;
+ if (ioctl (scb->fd, TIOCSLTC, &state->ltc) < 0)
+ return -1;
+ if (ioctl (scb->fd, TIOCLSET, &state->lmode) < 0)
+ return -1;
+
+ return 0;
+#endif
+}
+
+static serial_ttystate
+hardwire_get_tty_state (scb)
+ serial_t scb;
+{
+ struct hardwire_ttystate *state;
+
+ state = (struct hardwire_ttystate *) xmalloc (sizeof *state);
+
+ if (get_tty_state (scb, state))
+ return NULL;
+
+ return (serial_ttystate) state;
+}
+
+static int
+hardwire_set_tty_state (scb, ttystate)
+ serial_t scb;
+ serial_ttystate ttystate;
+{
+ struct hardwire_ttystate *state;
+
+ state = (struct hardwire_ttystate *) ttystate;
+
+ return set_tty_state (scb, state);
+}
+
+static int
+hardwire_noflush_set_tty_state (scb, new_ttystate, old_ttystate)
+ serial_t scb;
+ serial_ttystate new_ttystate;
+ serial_ttystate old_ttystate;
+{
+ struct hardwire_ttystate new_state;
+#ifdef HAVE_SGTTY
+ struct hardwire_ttystate *state = (struct hardwire_ttystate *) old_ttystate;
+#endif
+
+ new_state = *(struct hardwire_ttystate *) new_ttystate;
+
+ /* Don't change in or out of raw mode; we don't want to flush input.
+ termio and termios have no such restriction; for them flushing input
+ is separate from setting the attributes. */
+
+#ifdef HAVE_SGTTY
+ if (state->sgttyb.sg_flags & RAW)
+ new_state.sgttyb.sg_flags |= RAW;
+ else
+ new_state.sgttyb.sg_flags &= ~RAW;
+
+ /* I'm not sure whether this is necessary; the manpage just mentions
+ RAW not CBREAK. */
+ if (state->sgttyb.sg_flags & CBREAK)
+ new_state.sgttyb.sg_flags |= CBREAK;
+ else
+ new_state.sgttyb.sg_flags &= ~CBREAK;
+#endif
+
+ return set_tty_state (scb, &new_state);
}
static void
-hardwire_raw(scb)
+hardwire_print_tty_state (scb, ttystate)
serial_t scb;
+ serial_ttystate ttystate;
{
+ struct hardwire_ttystate *state = (struct hardwire_ttystate *) ttystate;
+ int i;
+
#ifdef HAVE_TERMIOS
- struct termios termios;
+ printf_filtered ("c_iflag = 0x%x, c_oflag = 0x%x,\n",
+ state->termios.c_iflag, state->termios.c_oflag);
+ printf_filtered ("c_cflag = 0x%x, c_lflag = 0x%x\n",
+ state->termios.c_cflag, state->termios.c_lflag);
+#if 0
+ /* This not in POSIX, and is not really documented by those systems
+ which have it (at least not Sun). */
+ printf_filtered ("c_line = 0x%x.\n", state->termios.c_line);
+#endif
+ printf_filtered ("c_cc: ");
+ for (i = 0; i < NCCS; i += 1)
+ printf_filtered ("0x%x ", state->termios.c_cc[i]);
+ printf_filtered ("\n");
+#endif
- if (tcgetattr(scb->fd, &termios))
- {
- fprintf(stderr, "tcgetattr failed: %s\n", safe_strerror(errno));
- }
+#ifdef HAVE_TERMIO
+ printf_filtered ("c_iflag = 0x%x, c_oflag = 0x%x,\n",
+ state->termio.c_iflag, state->termio.c_oflag);
+ printf_filtered ("c_cflag = 0x%x, c_lflag = 0x%x, c_line = 0x%x.\n",
+ state->termio.c_cflag, state->termio.c_lflag,
+ state->termio.c_line);
+ printf_filtered ("c_cc: ");
+ for (i = 0; i < NCC; i += 1)
+ printf_filtered ("0x%x ", state->termio.c_cc[i]);
+ printf_filtered ("\n");
+#endif
- termios.c_iflag = 0;
- termios.c_oflag = 0;
- termios.c_lflag = 0;
- termios.c_cflag &= ~(CSIZE|PARENB);
- termios.c_cflag |= CS8;
- termios.c_cc[VMIN] = 0;
- termios.c_cc[VTIME] = 0;
+#ifdef HAVE_SGTTY
+ printf_filtered ("sgttyb.sg_flags = 0x%x.\n", state->sgttyb.sg_flags);
- if (tcsetattr(scb->fd, TCSANOW, &termios))
- {
- fprintf(stderr, "tcsetattr failed: %s\n", safe_strerror(errno));
- }
+ printf_filtered ("tchars: ");
+ for (i = 0; i < (int) sizeof (struct tchars); i++)
+ printf_filtered ("0x%x ", ((unsigned char *) &state->tc)[i]);
+ printf_filtered ("\n");
+
+ printf_filtered ("ltchars: ");
+ for (i = 0; i < (int) sizeof (struct ltchars); i++)
+ printf_filtered ("0x%x ", ((unsigned char *) &state->ltc)[i]);
+ printf_filtered ("\n");
+
+ printf_filtered ("lmode: 0x%x\n", state->lmode);
+#endif
+}
+
+/* Wait for the output to drain away, as opposed to flushing (discarding) it */
+
+static int
+hardwire_drain_output (scb)
+ serial_t scb;
+{
+#ifdef HAVE_TERMIOS
+ return tcdrain (scb->fd);
#endif
#ifdef HAVE_TERMIO
- struct termio termio;
+ return ioctl (scb->fd, TCSBRK, 1);
+#endif
- if (ioctl (scb->fd, TCGETA, &termio))
- {
- fprintf(stderr, "TCGETA failed: %s\n", safe_strerror(errno));
- }
+#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. */
+ {
+ struct hardwire_ttystate state;
+ if (get_tty_state (scb, &state))
+ {
+ return (-1);
+ }
+ else
+ {
+ return (ioctl (scb->fd, TIOCSETP, &state.sgttyb));
+ }
+ }
+#endif
+}
+
+static int
+hardwire_flush_output (scb)
+ serial_t scb;
+{
+#ifdef HAVE_TERMIOS
+ return tcflush (scb->fd, TCOFLUSH);
+#endif
- termio.c_iflag = 0;
- termio.c_oflag = 0;
- termio.c_lflag = 0;
- termio.c_cflag &= ~(CSIZE|PARENB);
- termio.c_cflag |= CS8;
- termio.c_cc[VMIN] = 0;
- termio.c_cc[VTIME] = 0;
+#ifdef HAVE_TERMIO
+ return ioctl (scb->fd, TCFLSH, 1);
+#endif
- if (ioctl (scb->fd, TCSETA, &termio))
- {
- fprintf(stderr, "TCSETA failed: %s\n", safe_strerror(errno));
- }
+#ifdef HAVE_SGTTY
+ /* This flushes both input and output, but we can't do better. */
+ return ioctl (scb->fd, TIOCFLUSH, 0);
+#endif
+}
+
+static int
+hardwire_flush_input (scb)
+ serial_t scb;
+{
+ scb->bufcnt = 0;
+ scb->bufp = scb->buf;
+
+#ifdef HAVE_TERMIOS
+ return tcflush (scb->fd, TCIFLUSH);
+#endif
+
+#ifdef HAVE_TERMIO
+ return ioctl (scb->fd, TCFLSH, 0);
#endif
#ifdef HAVE_SGTTY
- struct sgttyb sgttyb;
+ /* This flushes both input and output, but we can't do better. */
+ return ioctl (scb->fd, TIOCFLUSH, 0);
+#endif
+}
- if (ioctl (scb->fd, TIOCGETP, &sgttyb))
- fprintf(stderr, "TIOCGETP failed: %s\n", safe_strerror(errno));
+static int
+hardwire_send_break (scb)
+ serial_t scb;
+{
+#ifdef HAVE_TERMIOS
+ return tcsendbreak (scb->fd, 0);
+#endif
- sgttyb.sg_flags |= RAW | ANYP;
- sgttyb.sg_flags &= ~(CBREAK | ECHO);
+#ifdef HAVE_TERMIO
+ return ioctl (scb->fd, TCSBRK, 0);
+#endif
- if (ioctl (scb->fd, TIOCSETP, &sgttyb))
- fprintf(stderr, "TIOCSETP failed: %s\n", safe_strerror(errno));
+#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;
+ select (0, 0, 0, 0, &timeout);
+ status = ioctl (scb->fd, TIOCCBRK, 0);
+ return status;
+ }
#endif
}
-/* 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 -2 if timeout expired, EOF if line dropped
- dead, or -3 for any other error (see errno in that case). */
+static void
+hardwire_raw (scb)
+ serial_t scb;
+{
+ struct hardwire_ttystate state;
+
+ if (get_tty_state (scb, &state))
+ fprintf_unfiltered (gdb_stderr, "get_tty_state failed: %s\n", safe_strerror (errno));
+
+#ifdef HAVE_TERMIOS
+ state.termios.c_iflag = 0;
+ state.termios.c_oflag = 0;
+ state.termios.c_lflag = 0;
+ state.termios.c_cflag &= ~(CSIZE | PARENB);
+ state.termios.c_cflag |= CLOCAL | CS8;
+ state.termios.c_cc[VMIN] = 0;
+ state.termios.c_cc[VTIME] = 0;
+#endif
+
+#ifdef HAVE_TERMIO
+ state.termio.c_iflag = 0;
+ state.termio.c_oflag = 0;
+ state.termio.c_lflag = 0;
+ state.termio.c_cflag &= ~(CSIZE | PARENB);
+ state.termio.c_cflag |= CLOCAL | CS8;
+ state.termio.c_cc[VMIN] = 0;
+ state.termio.c_cc[VTIME] = 0;
+#endif
+
+#ifdef HAVE_SGTTY
+ state.sgttyb.sg_flags |= RAW | ANYP;
+ state.sgttyb.sg_flags &= ~(CBREAK | ECHO);
+#endif
+
+ scb->current_timeout = 0;
+
+ if (set_tty_state (scb, &state))
+ 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().
+ */
static int
-hardwire_readchar(scb, timeout)
+wait_for (scb, timeout)
serial_t scb;
int timeout;
{
- int numfds;
- struct timeval tv;
- fd_set readfds;
+#ifdef HAVE_SGTTY
+ {
+ struct timeval tv;
+ fd_set readfds;
- if (scb->bufcnt-- > 0)
- return *scb->bufp++;
+ FD_ZERO (&readfds);
- FD_ZERO (&readfds);
+ tv.tv_sec = timeout;
+ tv.tv_usec = 0;
- tv.tv_sec = timeout;
- tv.tv_usec = 0;
+ FD_SET (scb->fd, &readfds);
- FD_SET(scb->fd, &readfds);
+ while (1)
+ {
+ int numfds;
- if (timeout >= 0)
- numfds = select(scb->fd+1, &readfds, 0, 0, &tv);
- else
- numfds = select(scb->fd+1, &readfds, 0, 0, 0);
+ if (timeout >= 0)
+ numfds = select (scb->fd + 1, &readfds, 0, 0, &tv);
+ else
+ numfds = select (scb->fd + 1, &readfds, 0, 0, 0);
- if (numfds <= 0)
- if (numfds == 0)
- return -2; /* Timeout */
- else
- return -3; /* Got an error from select */
+ if (numfds <= 0)
+ if (numfds == 0)
+ return SERIAL_TIMEOUT;
+ else if (errno == EINTR)
+ continue;
+ else
+ return SERIAL_ERROR; /* Got an error from select or poll */
+
+ return 0;
+ }
+ }
+#endif /* HAVE_SGTTY */
+
+#if defined HAVE_TERMIO || defined HAVE_TERMIOS
+ if (timeout == scb->current_timeout)
+ return 0;
+
+ scb->current_timeout = timeout;
+
+ {
+ struct hardwire_ttystate state;
- scb->bufcnt = read(scb->fd, scb->buf, BUFSIZ);
+ if (get_tty_state (scb, &state))
+ fprintf_unfiltered (gdb_stderr, "get_tty_state failed: %s\n", safe_strerror (errno));
- if (scb->bufcnt <= 0)
- if (scb->bufcnt == 0)
- return EOF; /* 0 chars means end of file */
+#ifdef HAVE_TERMIOS
+ if (timeout < 0)
+ {
+ /* No timeout. */
+ state.termios.c_cc[VTIME] = 0;
+ state.termios.c_cc[VMIN] = 1;
+ }
else
- return -3; /* Got an error from read */
+ {
+ state.termios.c_cc[VMIN] = 0;
+ 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
+ bigger than this. If it is always unsigned, we could use
+ 25. */
+
+ scb->current_timeout = 12;
+ state.termios.c_cc[VTIME] = scb->current_timeout * 10;
+ scb->timeout_remaining = timeout - scb->current_timeout;
+ }
+ }
+#endif
- scb->bufcnt--;
- scb->bufp = scb->buf;
- return *scb->bufp++;
+#ifdef HAVE_TERMIO
+ if (timeout < 0)
+ {
+ /* No timeout. */
+ state.termio.c_cc[VTIME] = 0;
+ state.termio.c_cc[VMIN] = 1;
+ }
+ else
+ {
+ state.termio.c_cc[VMIN] = 0;
+ 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
+ bigger than this. If it is always unsigned, we could use
+ 25. */
+
+ scb->current_timeout = 12;
+ state.termio.c_cc[VTIME] = scb->current_timeout * 10;
+ scb->timeout_remaining = timeout - scb->current_timeout;
+ }
+ }
+#endif
+
+ if (set_tty_state (scb, &state))
+ 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). */
+static int
+hardwire_readchar (scb, timeout)
+ serial_t scb;
+ int timeout;
+{
+ int status, delta;
+ int detach = 0;
+
+ if (scb->bufcnt-- > 0)
+ return *scb->bufp++;
+
+ if (timeout > 0)
+ timeout++;
+
+ /* 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 GUI alive" hook
+ each time through the loop.
+ Also, timeout = 0 means to poll, so we just set the delta to 0, so we
+ will only go through the loop once. */
+
+ delta = (timeout == 0 ? 0 : 1);
+ while (1)
+ {
+
+ /* 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
+ quickly as possible. It is not safe to touch scb, since
+ someone else might have freed it. The ui_loop_hook signals that
+ we should exit by returning 1. */
+
+ if (ui_loop_hook)
+ detach = ui_loop_hook (0);
+
+ if (detach)
+ return SERIAL_TIMEOUT;
+
+ scb->timeout_remaining = (timeout < 0 ? timeout : timeout - delta);
+ status = wait_for (scb, delta);
+
+ if (status < 0)
+ return status;
+
+ scb->bufcnt = read (scb->fd, scb->buf, BUFSIZ);
+
+ if (scb->bufcnt <= 0)
+ {
+ if (scb->bufcnt == 0)
+ {
+ /* Zero characters means timeout (it could also be EOF, but
+ we don't (yet at least) distinguish). */
+ if (scb->timeout_remaining > 0)
+ {
+ timeout = scb->timeout_remaining;
+ continue;
+ }
+ else if (scb->timeout_remaining < 0)
+ continue;
+ else
+ return SERIAL_TIMEOUT;
+ }
+ else if (errno == EINTR)
+ continue;
+ else
+ return SERIAL_ERROR; /* Got an error from read */
+ }
+
+ scb->bufcnt--;
+ scb->bufp = scb->buf;
+ return *scb->bufp++;
+ }
}
#ifndef B19200
}
baudtab[] =
{
- {50, B50},
- {75, B75},
- {110, B110},
- {134, B134},
- {150, B150},
- {200, B200},
- {300, B300},
- {600, B600},
- {1200, B1200},
- {1800, B1800},
- {2400, B2400},
- {4800, B4800},
- {9600, B9600},
- {19200, B19200},
- {38400, B38400},
- {-1, -1},
+ {
+ 50, B50
+ }
+ ,
+ {
+ 75, B75
+ }
+ ,
+ {
+ 110, B110
+ }
+ ,
+ {
+ 134, B134
+ }
+ ,
+ {
+ 150, B150
+ }
+ ,
+ {
+ 200, B200
+ }
+ ,
+ {
+ 300, B300
+ }
+ ,
+ {
+ 600, B600
+ }
+ ,
+ {
+ 1200, B1200
+ }
+ ,
+ {
+ 1800, B1800
+ }
+ ,
+ {
+ 2400, B2400
+ }
+ ,
+ {
+ 4800, B4800
+ }
+ ,
+ {
+ 9600, B9600
+ }
+ ,
+ {
+ 19200, B19200
+ }
+ ,
+ {
+ 38400, B38400
+ }
+ ,
+#ifdef B57600
+ {
+ 57600, B57600
+ }
+ ,
+#endif
+#ifdef B115200
+ {
+ 115200, B115200
+ }
+ ,
+#endif
+#ifdef B230400
+ {
+ 230400, B230400
+ }
+ ,
+#endif
+#ifdef B460800
+ {
+ 460800, B460800
+ }
+ ,
+#endif
+ {
+ -1, -1
+ }
+ ,
};
-static int
-rate_to_code(rate)
+static int
+rate_to_code (rate)
int rate;
{
int i;
for (i = 0; baudtab[i].rate != -1; i++)
- if (rate == baudtab[i].rate)
+ if (rate == baudtab[i].rate)
return baudtab[i].code;
return -1;
}
static int
-hardwire_setbaudrate(scb, rate)
+hardwire_setbaudrate (scb, rate)
serial_t scb;
int rate;
{
-#ifdef HAVE_TERMIOS
- struct termios termios;
-
- if (tcgetattr (scb->fd, &termios))
- error("hardwire_setbaudrate: tcgetattr failed: %s\n", safe_strerror(errno));
+ struct hardwire_ttystate state;
- cfsetospeed (&termios, rate_to_code (rate));
- cfsetispeed (&termios, rate_to_code (rate));
+ if (get_tty_state (scb, &state))
+ return -1;
- if (tcsetattr (scb->fd, TCSANOW, &termios))
- error ("hardwire_setbaudrate: tcsetattr failed: %s\n", safe_strerror(errno));
-
- return 1;
+#ifdef HAVE_TERMIOS
+ cfsetospeed (&state.termios, rate_to_code (rate));
+ cfsetispeed (&state.termios, rate_to_code (rate));
#endif
#ifdef HAVE_TERMIO
- struct termio termio;
-
- if (ioctl (scb->fd, TCGETA, &termio))
- {
- fprintf(stderr, "TCGETA failed: %s\n", safe_strerror(errno));
- }
-
#ifndef CIBAUD
#define CIBAUD CBAUD
#endif
- termio.c_cflag &= ~(CBAUD | CIBAUD);
- termio.c_cflag |= rate_to_code (rate);
-
- if (ioctl (scb->fd, TCSETA, &termio))
- {
- fprintf(stderr, "TCSETA failed: %s\n", safe_strerror(errno));
- }
+ state.termio.c_cflag &= ~(CBAUD | CIBAUD);
+ state.termio.c_cflag |= rate_to_code (rate);
#endif
#ifdef HAVE_SGTTY
- struct sgttyb sgttyb;
+ state.sgttyb.sg_ispeed = rate_to_code (rate);
+ state.sgttyb.sg_ospeed = rate_to_code (rate);
+#endif
- if (ioctl (scb->fd, TIOCGETP, &sgttyb))
- fprintf (stderr, "TIOCGETP failed: %s\n", safe_strerror (errno));
+ return set_tty_state (scb, &state);
+}
- sgttyb.sg_ispeed = rate_to_code (rate);
- sgttyb.sg_ospeed = rate_to_code (rate);
+static int
+hardwire_setstopbits (scb, num)
+ serial_t scb;
+ int num;
+{
+ struct hardwire_ttystate state;
+ int newbit;
+
+ if (get_tty_state (scb, &state))
+ return -1;
- if (ioctl (scb->fd, TIOCSETP, &sgttyb))
- fprintf (stderr, "TIOCSETP failed: %s\n", safe_strerror (errno));
+ switch (num)
+ {
+ case SERIAL_1_STOPBITS:
+ newbit = 0;
+ break;
+ case SERIAL_1_AND_A_HALF_STOPBITS:
+ case SERIAL_2_STOPBITS:
+ newbit = 1;
+ break;
+ default:
+ return 1;
+ }
+
+#ifdef HAVE_TERMIOS
+ if (!newbit)
+ state.termios.c_cflag &= ~CSTOPB;
+ else
+ state.termios.c_cflag |= CSTOPB; /* two bits */
#endif
+
+#ifdef HAVE_TERMIO
+ if (!newbit)
+ state.termio.c_cflag &= ~CSTOPB;
+ else
+ state.termio.c_cflag |= CSTOPB; /* two bits */
+#endif
+
+#ifdef HAVE_SGTTY
+ return 0; /* sgtty doesn't support this */
+#endif
+
+ return set_tty_state (scb, &state);
}
static int
-hardwire_write(scb, str, len)
+hardwire_write (scb, str, len)
serial_t scb;
const char *str;
int len;
while (len > 0)
{
- cc = write(scb->fd, str, len);
+ cc = write (scb->fd, str, len);
if (cc < 0)
return 1;
}
static void
-hardwire_restore(scb)
- serial_t scb;
-{
-}
-
-static void
-hardwire_close(scb)
+hardwire_close (scb)
serial_t scb;
{
if (scb->fd < 0)
return;
- SERIAL_RESTORE(scb);
-
- close(scb->fd);
+ close (scb->fd);
scb->fd = -1;
}
hardwire_close,
hardwire_readchar,
hardwire_write,
+ hardwire_flush_output,
+ hardwire_flush_input,
+ hardwire_send_break,
hardwire_raw,
- hardwire_restore,
- hardwire_setbaudrate
+ hardwire_get_tty_state,
+ hardwire_set_tty_state,
+ hardwire_print_tty_state,
+ hardwire_noflush_set_tty_state,
+ hardwire_setbaudrate,
+ hardwire_setstopbits,
+ hardwire_drain_output, /* wait for output to drain */
};
+void
_initialize_ser_hardwire ()
{
serial_add_interface (&hardwire_ops);
projects / deliverable / binutils-gdb.git / blobdiff