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4e772f4426
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.
87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
/* Remote serial support interface definitions for GDB, the GNU Debugger.
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Copyright 1992, 1993 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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/* Terminal state pointer. This is specific to each type of interface. */
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typedef PTR ttystate;
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struct _serial_t
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{
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int fd;
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struct serial_ops *ops;
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ttystate ttystate;
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int bufcnt;
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unsigned char *bufp;
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unsigned char buf[BUFSIZ];
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};
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typedef struct _serial_t *serial_t;
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struct serial_ops {
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char *name;
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struct serial_ops *next;
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int (*open) PARAMS ((serial_t, const char *name));
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void (*close) PARAMS ((serial_t));
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int (*readchar) PARAMS ((serial_t, int timeout));
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int (*write) PARAMS ((serial_t, const char *str, int len));
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void (*go_raw) PARAMS ((serial_t));
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void (*restore) PARAMS ((serial_t));
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int (*setbaudrate) PARAMS ((serial_t, int rate));
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};
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/* Add a new serial interface to the interface list */
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void serial_add_interface PARAMS ((struct serial_ops *optable));
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/* Try to open the serial device "name", returns a serial_t if ok, NULL if not.
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*/
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serial_t serial_open PARAMS ((const char *name));
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/* Internal open routine for specific I/O interface */
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#define SERIAL_OPEN(SERIAL_T, NAME) (SERIAL_T)->ops->open((SERIAL_T), NAME)
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/* Turn the port into raw mode. */
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#define SERIAL_RAW(SERIAL_T) (SERIAL_T)->ops->go_raw((SERIAL_T))
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/* Read one char from the serial device with <TO>-second timeout.
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Returns char if ok, else EOF, -2 for timeout, -3 for anything else */
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#define SERIAL_READCHAR(SERIAL_T, TIMEOUT) ((SERIAL_T)->ops->readchar((SERIAL_T), TIMEOUT))
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/* Set the baudrate to the decimal value supplied. Return 1 on failure,
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0 otherwise. */
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#define SERIAL_SETBAUDRATE(SERIAL_T, RATE) ((SERIAL_T)->ops->setbaudrate((SERIAL_T), RATE))
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/* Write some chars to the device, returns 0 for failure. See errno for
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details. */
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#define SERIAL_WRITE(SERIAL_T, STRING, LEN) ((SERIAL_T)->ops->write((SERIAL_T), STRING, LEN))
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/* Close the serial port */
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#define SERIAL_CLOSE(SERIAL_T) (SERIAL_T)->ops->close((SERIAL_T))
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/* Restore the serial port to the state saved in oldstate */
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#define SERIAL_RESTORE(SERIAL_T) (SERIAL_T)->ops->restore((SERIAL_T))
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