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a04c9535 | 1 | /* systty.h - System-dependent definitions for terminals. |
d0d6b7c5 JB |
2 | Copyright (C) 1992 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 1, or (at your option) | |
9 | 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; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
2182d459 RS |
20 | #ifdef HAVE_TERMIOS |
21 | #define HAVE_TCATTR | |
22 | #endif | |
d0d6b7c5 JB |
23 | \f |
24 | /* Include the proper files. */ | |
25 | #ifdef HAVE_TERMIO | |
26 | #include <termio.h> | |
27 | #include <fcntl.h> | |
28 | #else | |
29 | #ifdef HAVE_TERMIOS | |
30 | #include <termio.h> | |
31 | #include <termios.h> | |
1aaaff21 | 32 | #include <fcntl.h> |
d0d6b7c5 JB |
33 | #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */ |
34 | #ifndef VMS | |
35 | #include <sgtty.h> | |
a04c9535 JB |
36 | #else /* VMS */ |
37 | #include <descrip.h> | |
38 | static struct iosb | |
39 | { | |
40 | short status; | |
41 | short offset; | |
42 | short termlen; | |
43 | short term; | |
44 | } input_iosb; | |
45 | ||
46 | extern int waiting_for_ast; | |
47 | extern int stop_input; | |
210b2b4f | 48 | #if 0 /* VAX C doeasn't understand initializing declarations */ |
a04c9535 JB |
49 | extern int input_ef = 0; |
50 | extern int timer_ef = 0; | |
51 | extern int process_ef = 0; | |
210b2b4f JB |
52 | #else |
53 | extern int input_ef; | |
54 | extern int timer_ef; | |
55 | extern int process_ef; | |
56 | #endif | |
a04c9535 JB |
57 | extern int input_eflist; |
58 | extern int timer_eflist; | |
59 | ||
60 | static $DESCRIPTOR (input_dsc, "TT"); | |
61 | static int terminator_mask[2] = { 0, 0 }; | |
62 | ||
63 | static struct sensemode { | |
64 | short status; | |
65 | unsigned char xmit_baud; | |
66 | unsigned char rcv_baud; | |
67 | unsigned char crfill; | |
68 | unsigned char lffill; | |
69 | unsigned char parity; | |
70 | unsigned char unused; | |
71 | char class; | |
72 | char type; | |
73 | short scr_wid; | |
74 | unsigned long tt_char : 24, scr_len : 8; | |
75 | unsigned long tt2_char; | |
76 | } sensemode_iosb; | |
77 | #endif /* VMS */ | |
d0d6b7c5 JB |
78 | #endif /* not HAVE_TERMIOS */ |
79 | #endif /* not HAVE_TERMIO */ | |
80 | ||
4746118a JB |
81 | #ifdef AIX |
82 | /* Get files for keyboard remapping */ | |
83 | #define HFNKEYS 2 | |
84 | #include <sys/hft.h> | |
85 | #include <sys/devinfo.h> | |
86 | #endif | |
87 | ||
88 | /* Get rid of LLITOUT in 4.1, since it is said to stimulate kernel bugs. */ | |
89 | #ifdef BSD4_1 | |
90 | #undef LLITOUT | |
91 | #define LLITOUT 0 | |
92 | #endif /* 4.1 */ | |
93 | ||
94 | #ifdef NEED_BSDTTY | |
95 | #include <sys/bsdtty.h> | |
96 | #endif | |
97 | ||
98 | #if defined (HPUX) && defined (HAVE_PTYS) | |
99 | #include <sys/ptyio.h> | |
100 | #endif | |
101 | ||
102 | #ifdef AIX | |
103 | #include <sys/pty.h> | |
104 | #include <unistd.h> | |
105 | #endif /* AIX */ | |
106 | ||
107 | #ifdef SYSV_PTYS | |
108 | #include <sys/tty.h> | |
ffd56f97 JB |
109 | #ifdef titan |
110 | #include <sys/ttyhw.h> | |
111 | #include <sys/stream.h> | |
112 | #endif | |
372d3c2e | 113 | #ifndef NO_PTY_H |
4746118a JB |
114 | #include <sys/pty.h> |
115 | #endif | |
372d3c2e | 116 | #endif |
4746118a JB |
117 | |
118 | /* saka@pfu.fujitsu.co.JP writes: | |
119 | FASYNC defined in this file. But, FASYNC don't working. | |
120 | so no problem, because unrequest_sigio only need. */ | |
121 | #if defined (pfa) | |
122 | #include <sys/file.h> | |
123 | #endif | |
124 | ||
d0d6b7c5 JB |
125 | \f |
126 | /* Special cases - inhibiting the use of certain features. */ | |
127 | ||
128 | #ifdef APOLLO | |
129 | #undef TIOCSTART | |
130 | #endif | |
131 | ||
ffd56f97 JB |
132 | #ifdef XENIX |
133 | #undef TIOCGETC /* Avoid confusing some conditionals that test this. */ | |
134 | #endif | |
135 | ||
d0d6b7c5 JB |
136 | #ifdef BROKEN_TIOCGETC |
137 | #undef TIOCGETC /* Avoid confusing some conditionals that test this. */ | |
138 | #endif | |
139 | ||
140 | /* UNIPLUS systems may have FIONREAD. */ | |
141 | #ifdef UNIPLUS | |
142 | #include <sys.ioctl.h> | |
143 | #endif | |
144 | ||
145 | /* Allow m- file to inhibit use of FIONREAD. */ | |
146 | #ifdef BROKEN_FIONREAD | |
147 | #undef FIONREAD | |
148 | #undef ASYNC | |
149 | #endif | |
150 | ||
151 | /* Interupt input is not used if there is no FIONREAD. */ | |
152 | #ifndef FIONREAD | |
153 | #undef SIGIO | |
154 | #endif | |
155 | ||
156 | \f | |
2102829e RS |
157 | /* Try to establish the correct character to disable terminal functions |
158 | in a system-independent manner. Note that USG (at least) define | |
159 | _POSIX_VDISABLE as 0! */ | |
160 | ||
161 | #ifdef _POSIX_VDISABLE | |
162 | #define CDISABLE _POSIX_VDISABLE | |
163 | #else /* not _POSIX_VDISABLE */ | |
164 | #ifdef CDEL | |
165 | #define CDISABLE CDEL | |
166 | #else /* not CDEL */ | |
167 | #define CDISABLE 255 | |
168 | #endif /* not CDEL */ | |
169 | #endif /* not _POSIX_VDISABLE */ | |
170 | \f | |
d0d6b7c5 JB |
171 | /* Get the number of characters queued for output. */ |
172 | ||
173 | /* EMACS_OUTQSIZE(FD, int *SIZE) stores the number of characters | |
174 | queued for output to the terminal FD in *SIZE, if FD is a tty. | |
175 | Returns -1 if there was an error (i.e. FD is not a tty), 0 | |
176 | otherwise. */ | |
177 | #ifdef TIOCOUTQ | |
178 | #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TIOCOUTQ, (size))) | |
179 | #endif | |
180 | ||
181 | #ifdef HAVE_TERMIO | |
182 | #ifdef TCOUTQ | |
183 | #undef EMACS_OUTQSIZE | |
184 | #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TCOUTQ, (size))) | |
185 | #endif | |
186 | #endif | |
187 | ||
188 | \f | |
189 | /* Manipulate a terminal's current process group. */ | |
190 | ||
191 | /* EMACS_HAVE_TTY_PGRP is true if we can get and set the tty's current | |
192 | controlling process group. | |
193 | ||
194 | EMACS_GET_TTY_PGRP(int FD, int *PGID) sets *PGID the terminal FD's | |
195 | current process group. Return -1 if there is an error. | |
196 | ||
197 | EMACS_SET_TTY_PGRP(int FD, int *PGID) sets the terminal FD's | |
198 | current process group to *PGID. Return -1 if there is an error. */ | |
199 | ||
ffd56f97 JB |
200 | #ifdef HPUX |
201 | /* HPUX tty process group stuff doesn't work, says the anonymous voice | |
202 | from the past. */ | |
203 | #else | |
d0d6b7c5 JB |
204 | #ifdef TIOCGPGRP |
205 | #define EMACS_HAVE_TTY_PGRP | |
206 | #else | |
207 | #ifdef HAVE_TERMIOS | |
208 | #define EMACS_HAVE_TTY_PGRP | |
209 | #endif | |
210 | #endif | |
ffd56f97 | 211 | #endif |
d0d6b7c5 JB |
212 | |
213 | #ifdef EMACS_HAVE_TTY_PGRP | |
214 | ||
215 | #ifdef HAVE_TERMIOS | |
216 | ||
217 | #define EMACS_GET_TTY_PGRP(fd, pgid) (*(pgid) = tcgetpgrp ((fd))) | |
218 | #define EMACS_SET_TTY_PGRP(fd, pgid) (*(pgid) = tcsetpgrp ((fd))) | |
219 | ||
220 | #else | |
221 | #ifdef TIOCSPGRP | |
222 | ||
223 | #define EMACS_GET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCGPGRP, (pgid))) | |
224 | #define EMACS_SET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCSPGRP, (pgid))) | |
225 | ||
226 | #endif | |
227 | #endif | |
228 | ||
229 | #else | |
230 | ||
231 | /* Just ignore this for now and hope for the best */ | |
232 | #define EMACS_GET_TTY_PGRP(fd, pgid) 0 | |
ef15f270 | 233 | #define EMACS_SET_TTY_PGRP(fd, pgif) 0 |
d0d6b7c5 JB |
234 | |
235 | #endif | |
236 | ||
237 | \f | |
238 | /* Manipulate a TTY's input/output processing parameters. */ | |
239 | ||
240 | /* struct emacs_tty is a structure used to hold the current tty | |
241 | parameters. If the terminal has several structures describing its | |
242 | state, for example a struct tchars, a struct sgttyb, a struct | |
243 | tchars, a struct ltchars, and a struct pagechars, struct | |
244 | emacs_tty should contain an element for each parameter struct | |
245 | that Emacs may change. | |
246 | ||
247 | EMACS_GET_TTY (int FD, struct emacs_tty *P) stores the | |
248 | parameters of the tty on FD in *P. | |
249 | ||
250 | EMACS_SET_TTY (int FD, struct emacs_tty *P, int waitp) | |
251 | sets the parameters of the tty on FD according to the contents of | |
252 | *P. If waitp is non-zero, we wait for all queued output to be | |
253 | written before making the change; otherwise, we forget any queued | |
254 | input and make the change immediately. | |
255 | ||
256 | EMACS_TTY_TABS_OK (struct emacs_tty *P) is false iff the kernel | |
257 | expands tabs to spaces upon output; in that case, there is no | |
258 | advantage to using tabs over spaces. */ | |
259 | ||
260 | ||
d0d6b7c5 JB |
261 | /* For each tty parameter structure that Emacs might want to save and restore, |
262 | - include an element for it in this structure, | |
263 | - define a pair of numbered macros to get and set it and return | |
264 | true iff the call succeeded, | |
265 | - give alternative definitions for when the component is not implemented | |
266 | which always succeed, and | |
267 | - extend the definition of EMACS_{GET,SET}_TTY_CHARS to include the | |
268 | new macros. */ | |
269 | ||
270 | struct emacs_tty { | |
271 | ||
272 | /* There is always one of the following elements, so there is no need | |
273 | for dummy get and set definitions. */ | |
2182d459 | 274 | #ifdef HAVE_TCATTR |
d0d6b7c5 JB |
275 | struct termios main; |
276 | #else | |
277 | #ifdef HAVE_TERMIO | |
278 | struct termio main; | |
279 | #else | |
280 | #ifdef VMS | |
281 | struct sensemode main; | |
282 | #else | |
283 | struct sgttyb main; | |
284 | #endif | |
285 | #endif | |
286 | #endif | |
2182d459 RS |
287 | #ifdef TIOCGLTC |
288 | struct ltchars ltchars; | |
289 | #endif | |
290 | #ifdef TIOCGETC | |
291 | struct tchars tchars; | |
292 | int lmode; | |
d0d6b7c5 | 293 | #endif |
2182d459 RS |
294 | }; |
295 | \f | |
296 | /* Define EMACS_GET_TTY and EMACS_SET_TTY, | |
c2e4f49a | 297 | the macros for reading and setting parts of `struct emacs_tty'. |
d0d6b7c5 | 298 | |
c2e4f49a JB |
299 | These got pretty unmanageable (huge macros are hard to debug), and |
300 | finally needed some code which couldn't be done as part of an | |
301 | expression, so we moved them out to their own functions in sysdep.c. */ | |
302 | #define EMACS_GET_TTY(fd, p) (emacs_get_tty ((fd), (p))) | |
303 | #define EMACS_SET_TTY(fd, p, waitp) (emacs_set_tty ((fd), (p), (waitp))) | |
d0d6b7c5 | 304 | |
2182d459 RS |
305 | \f |
306 | /* Define EMACS_TTY_TABS_OK. */ | |
d0d6b7c5 JB |
307 | |
308 | #ifdef HAVE_TERMIOS | |
309 | ||
310 | #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) | |
311 | ||
312 | #else /* not def HAVE_TERMIOS */ | |
313 | #ifdef HAVE_TERMIO | |
314 | ||
315 | #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) | |
316 | ||
317 | #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */ | |
318 | #ifdef VMS | |
319 | ||
320 | #define EMACS_TTY_TABS_OK(p) (((p)->main.tt_char & TT$M_MECHTAB) != 0) | |
321 | ||
322 | #else | |
323 | ||
324 | #define EMACS_TTY_TABS_OK(p) (((p)->main.sg_flags & XTABS) != XTABS) | |
325 | ||
326 | #endif /* not def VMS */ | |
327 | #endif /* not def HAVE_TERMIO */ | |
328 | #endif /* not def HAVE_TERMIOS */ |