1 /* systty.h - System-dependent definitions for terminals. 2 Copyright (C) 1993-1994, 2001-2021 Free Software Foundation, Inc. 3 4 This file is part of GNU Emacs. 5 6 GNU Emacs is free software: you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation, either version 3 of the License, or (at 9 your option) any later version. 10 11 GNU Emacs is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */ 18 19 #ifndef EMACS_SYSTTY_H 20 #define EMACS_SYSTTY_H 21 22 /* Include the proper files. */ 23 24 #ifndef DOS_NT 25 #include <termios.h> 26 #include <fcntl.h> 27 #endif /* not DOS_NT */ 28 29 #include <sys/ioctl.h> 30 31 #ifdef HPUX 32 #include <sys/bsdtty.h> 33 #include <sys/ptyio.h> 34 #endif 35 36 #ifdef AIX 37 #include <sys/pty.h> 38 #endif /* AIX */ 39 40 #include <unistd.h> 41 42 #include "lisp.h" 43 44 45 /* Try to establish the correct character to disable terminal functions 46 in a system-independent manner. Note that USG (at least) define 47 _POSIX_VDISABLE as 0! */ 48 49 #ifdef _POSIX_VDISABLE 50 #define CDISABLE _POSIX_VDISABLE 51 #else /* not _POSIX_VDISABLE */ 52 #ifdef CDEL 53 #undef CDISABLE 54 #define CDISABLE CDEL 55 #else /* not CDEL */ 56 #define CDISABLE 255 57 #endif /* not CDEL */ 58 #endif /* not _POSIX_VDISABLE */ 59 60 /* Manipulate a TTY's input/output processing parameters. */ 61 62 /* struct emacs_tty is a structure used to hold the current tty 63 parameters. If the terminal has several structures describing its 64 state, for example a struct tchars, a struct sgttyb, a struct 65 tchars, a struct ltchars, and a struct pagechars, struct 66 emacs_tty should contain an element for each parameter struct 67 that Emacs may change. */ 68 69 70 /* For each tty parameter structure that Emacs might want to save and restore, 71 - include an element for it in this structure, and 72 - extend the emacs_{get,set}_tty functions in sysdep.c to deal with the 73 new members. */ 74 75 struct emacs_tty { 76 77 /* There is always one of the following elements, so there is no need 78 for dummy get and set definitions. */ 79 #ifndef DOS_NT 80 struct termios main; 81 #else /* DOS_NT */ 82 unsigned main; 83 #endif /* DOS_NT */ 84 }; 85 86 /* From sysdep.c or w32.c */ 87 extern int emacs_get_tty (int, struct emacs_tty *) EXTERNALLY_VISIBLE; 88 extern int emacs_set_tty (int, struct emacs_tty *, bool) EXTERNALLY_VISIBLE; 89 extern void suppress_echo_on_tty (int); 90 extern int serial_open (Lisp_Object); 91 extern void serial_configure (struct Lisp_Process *, Lisp_Object); 92 93 #endif /* EMACS_SYSTTY_H */ 94