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* Makefile.in (SFILES OBS): Add serial.[co] & ser-hardwire.[co].
These implement a new serial line interface for talking to remote targets. * configure.in: Link ser-hardwire.c to ser-unix.c for all hosts, EXCEPT go32, which gets ser-go32.c. * remote.c: Use new serial interface. More remote-xxx's to be converted later. * ser-bsd.c, ser-termios.c: Removed. * serial.c: New. Implements common operations for all serial types. * ser-unix.c: New. Unix specific serial operations for various flavors of Unix (Posix, SysV, BSD). * serial.h: Generic serial interface defs. * config/i386/go32.mh, config/i386/i386bsd.h, config/m68k/apollo68b.mh, config/sparc/sun4os4.mh: Remove ser-bsd.o from XDEPFILES. All the magic is now handled in configure.in.
This commit is contained in:
Stu Grossman
226
gdb/ser-bsd.c
226
gdb/ser-bsd.c
@@ -1,226 +0,0 @@
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/* Remote serial interface for OS's with sgttyb
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Copyright 1992 Free Software Foundation, Inc.
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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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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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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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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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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "defs.h"
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#include <sys/types.h>
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#include <sys/time.h>
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#include <fcntl.h>
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#include "serial.h"
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static int desc = -1;
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void
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serial_raw(fd, oldstate)
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int fd;
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struct ttystate *oldstate;
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{
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struct sgttyb sgttyb;
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oldstate->flags = fcntl(fd, F_GETFL, 0);
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fcntl(fd, F_SETFL, oldstate->flags|FNDELAY);
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if (ioctl(fd, TIOCGETP, &sgttyb))
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{
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fprintf(stderr, "TIOCGETP failed: %s\n", safe_strerror(errno));
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}
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oldstate->sgttyb = sgttyb;
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sgttyb.sg_flags = RAW;
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if (ioctl(fd, TIOCSETP, &sgttyb))
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{
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fprintf(stderr, "TIOCSETP failed: %s\n", safe_strerror(errno));
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}
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}
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void
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serial_restore(fd, oldstate)
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int fd;
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struct ttystate *oldstate;
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{
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fcntl(fd, F_SETFL, oldstate->flags);
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ioctl(fd, TIOCSETP, &oldstate->sgttyb);
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}
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static struct ttystate oldstate;
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static fd_set readfds;
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int
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serial_open(name)
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const char *name;
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{
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desc = open (name, O_RDWR);
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if (desc < 0)
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error("Open of %s failed: %s", name, safe_strerror(errno));
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serial_raw(desc, &oldstate);
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/* Setup constant stuff for select */
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FD_ZERO(&readfds);
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return desc;
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}
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/* Read a character with user-specified timeout. TIMEOUT is number of seconds
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to wait, or -1 to wait forever. Use timeout of 0 to effect a poll. Returns
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char if successful. Returns -2 if timeout expired, EOF if line dropped
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dead, or -3 for any other error (see errno in that case). */
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int
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serial_readchar(timeout)
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int timeout;
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{
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static unsigned char buf[BUFSIZ];
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static unsigned char *bufp;
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static int bufcnt = 0;
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int numfds;
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struct timeval tv;
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if (bufcnt-- > 0)
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return *bufp++;
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tv.tv_sec = timeout;
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tv.tv_usec = 0;
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FD_SET(desc, &readfds);
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if (timeout >= 0)
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numfds = select(desc+1, &readfds, 0, 0, &tv);
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else
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numfds = select(desc+1, &readfds, 0, 0, 0);
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if (numfds <= 0)
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if (numfds == 0)
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return -2; /* Timeout */
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else
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return -3; /* Got an error from select */
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bufcnt = read(desc, buf, BUFSIZ);
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if (bufcnt <= 0)
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if (bufcnt == 0)
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return EOF; /* 0 chars means end of file */
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else
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return -3; /* Got an error from read */
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bufcnt--;
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bufp = buf;
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return *bufp++;
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}
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#ifndef B19200
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#define B19200 EXTA
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#endif
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#ifndef B38400
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#define B38400 EXTB
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#endif
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/* Translate baud rates from integers to damn B_codes. Unix should
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have outgrown this crap years ago, but even POSIX wouldn't buck it. */
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static struct
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{
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int rate;
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int code;
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} baudtab[] = {
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{50, B50},
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{75, B75},
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{110, B110},
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{134, B134},
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{150, B150},
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{200, B200},
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{300, B300},
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{600, B600},
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{1200, B1200},
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{1800, B1800},
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{2400, B2400},
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{4800, B4800},
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{9600, B9600},
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{19200, B19200},
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{38400, B38400},
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{-1, -1},
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};
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static int
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rate_to_code(rate)
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int rate;
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{
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int i;
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for (i = 0; baudtab[i].rate != -1; i++)
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if (rate == baudtab[i].rate)
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return baudtab[i].code;
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return -1;
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}
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int
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serial_setbaudrate(rate)
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int rate;
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{
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struct sgttyb sgttyb;
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if (ioctl(desc, TIOCGETP, &sgttyb))
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error("TIOCGETP failed: %s\n", safe_strerror(errno));
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sgttyb.sg_ospeed = rate_to_code(rate);
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sgttyb.sg_ispeed = rate_to_code(rate);
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if (ioctl(desc, TIOCSETP, &sgttyb))
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error("TIOCSETP failed: %s\n", safe_strerror(errno));
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return 1;
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}
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int
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serial_write(str, len)
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const char *str;
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int len;
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{
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int cc;
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while (len > 0)
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{
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cc = write(desc, str, len);
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if (cc < 0)
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return 0;
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len -= cc;
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str += cc;
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}
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return 1;
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}
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void
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serial_close()
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{
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if (desc < 0)
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return;
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serial_restore(desc, &oldstate);
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close(desc);
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desc = -1;
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}
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