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soc/intel/xeon_sp: Align resources to 4K
[coreboot2.git] / util / kconfig / mconf.c
blob078b0a84254d5e5b9923a16255cafa037b5ed91b
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
4 *
5 * Introduced single menu mode (show all sub-menus in one large tree).
6 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
7 *
8 * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
9 */
10
11 #include <ctype.h>
12 #include <errno.h>
13 #include <fcntl.h>
14 #include <limits.h>
15 #include <stdarg.h>
16 #include <stdlib.h>
17 #include <string.h>
18 #include <strings.h>
19 #include <signal.h>
20 #include <unistd.h>
21
22 #include "lkc.h"
23 #include "lxdialog/dialog.h"
24
25 static const char mconf_readme[] =
26 "Overview\n"
27 "--------\n"
28 "This interface lets you select features and parameters for the build.\n"
29 "Features can either be built-in, modularized, or ignored. Parameters\n"
30 "must be entered in as decimal or hexadecimal numbers or text.\n"
31 "\n"
32 "Menu items beginning with following braces represent features that\n"
33 " [ ] can be built in or removed\n"
34 " < > can be built in, modularized or removed\n"
35 " { } can be built in or modularized (selected by other feature)\n"
36 " - - are selected by other feature,\n"
37 "while *, M or whitespace inside braces means to build in, build as\n"
38 "a module or to exclude the feature respectively.\n"
39 "\n"
40 "To change any of these features, highlight it with the cursor\n"
41 "keys and press <Y> to build it in, <M> to make it a module or\n"
42 "<N> to remove it. You may also press the <Space Bar> to cycle\n"
43 "through the available options (i.e. Y->N->M->Y).\n"
44 "\n"
45 "Some additional keyboard hints:\n"
46 "\n"
47 "Menus\n"
48 "----------\n"
49 "o Use the Up/Down arrow keys (cursor keys) to highlight the item you\n"
50 " wish to change or the submenu you wish to select and press <Enter>.\n"
51 " Submenus are designated by \"--->\", empty ones by \"----\".\n"
52 "\n"
53 " Shortcut: Press the option's highlighted letter (hotkey).\n"
54 " Pressing a hotkey more than once will sequence\n"
55 " through all visible items which use that hotkey.\n"
56 "\n"
57 " You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
58 " unseen options into view.\n"
59 "\n"
60 "o To exit a menu use the cursor keys to highlight the <Exit> button\n"
61 " and press <ENTER>.\n"
62 "\n"
63 " Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
64 " using those letters. You may press a single <ESC>, but\n"
65 " there is a delayed response which you may find annoying.\n"
66 "\n"
67 " Also, the <TAB> and cursor keys will cycle between <Select>,\n"
68 " <Exit>, <Help>, <Save>, and <Load>.\n"
69 "\n"
70 "o To get help with an item, use the cursor keys to highlight <Help>\n"
71 " and press <ENTER>.\n"
72 "\n"
73 " Shortcut: Press <H> or <?>.\n"
74 "\n"
75 "o To toggle the display of hidden options, press <Z>.\n"
76 "\n"
77 "\n"
78 "Radiolists (Choice lists)\n"
79 "-----------\n"
80 "o Use the cursor keys to select the option you wish to set and press\n"
81 " <S> or the <SPACE BAR>.\n"
82 "\n"
83 " Shortcut: Press the first letter of the option you wish to set then\n"
84 " press <S> or <SPACE BAR>.\n"
85 "\n"
86 "o To see available help for the item, use the cursor keys to highlight\n"
87 " <Help> and Press <ENTER>.\n"
88 "\n"
89 " Shortcut: Press <H> or <?>.\n"
90 "\n"
91 " Also, the <TAB> and cursor keys will cycle between <Select> and\n"
92 " <Help>\n"
93 "\n"
94 "\n"
95 "Data Entry\n"
96 "-----------\n"
97 "o Enter the requested information and press <ENTER>\n"
98 " If you are entering hexadecimal values, it is not necessary to\n"
99 " add the '0x' prefix to the entry.\n"
100 "\n"
101 "o For help, use the <TAB> or cursor keys to highlight the help option\n"
102 " and press <ENTER>. You can try <TAB><H> as well.\n"
103 "\n"
104 "\n"
105 "Text Box (Help Window)\n"
106 "--------\n"
107 "o Use the cursor keys to scroll up/down/left/right. The VI editor\n"
108 " keys h,j,k,l function here as do <u>, <d>, <SPACE BAR> and <B> for\n"
109 " those who are familiar with less and lynx.\n"
110 "\n"
111 "o Press <E>, <X>, <q>, <Enter> or <Esc><Esc> to exit.\n"
112 "\n"
113 "\n"
114 "Alternate Configuration Files\n"
115 "-----------------------------\n"
116 "Menuconfig supports the use of alternate configuration files for\n"
117 "those who, for various reasons, find it necessary to switch\n"
118 "between different configurations.\n"
119 "\n"
120 "The <Save> button will let you save the current configuration to\n"
121 "a file of your choosing. Use the <Load> button to load a previously\n"
122 "saved alternate configuration.\n"
123 "\n"
124 "Even if you don't use alternate configuration files, but you find\n"
125 "during a Menuconfig session that you have completely messed up your\n"
126 "settings, you may use the <Load> button to restore your previously\n"
127 "saved settings from \".config\" without restarting Menuconfig.\n"
128 "\n"
129 "Other information\n"
130 "-----------------\n"
131 "If you use Menuconfig in an XTERM window, make sure you have your\n"
132 "$TERM variable set to point to an xterm definition which supports\n"
133 "color. Otherwise, Menuconfig will look rather bad. Menuconfig will\n"
134 "not display correctly in an RXVT window because rxvt displays only one\n"
135 "intensity of color, bright.\n"
136 "\n"
137 "Menuconfig will display larger menus on screens or xterms which are\n"
138 "set to display more than the standard 25 row by 80 column geometry.\n"
139 "In order for this to work, the \"stty size\" command must be able to\n"
140 "display the screen's current row and column geometry. I STRONGLY\n"
141 "RECOMMEND that you make sure you do NOT have the shell variables\n"
142 "LINES and COLUMNS exported into your environment. Some distributions\n"
143 "export those variables via /etc/profile. Some ncurses programs can\n"
144 "become confused when those variables (LINES & COLUMNS) don't reflect\n"
145 "the true screen size.\n"
146 "\n"
147 "Optional personality available\n"
148 "------------------------------\n"
149 "If you prefer to have all of the options listed in a single menu,\n"
150 "rather than the default multimenu hierarchy, run the menuconfig with\n"
151 "MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
152 "\n"
153 "make MENUCONFIG_MODE=single_menu menuconfig\n"
154 "\n"
155 "<Enter> will then unroll the appropriate category, or enfold it if it\n"
156 "is already unrolled.\n"
157 "\n"
158 "Note that this mode can eventually be a little more CPU expensive\n"
159 "(especially with a larger number of unrolled categories) than the\n"
160 "default mode.\n"
161 "\n"
162
163 "Search\n"
164 "-------\n"
165 "Pressing the forward-slash (/) anywhere brings up a search dialog box.\n"
166 "\n"
167
168 "Different color themes available\n"
169 "--------------------------------\n"
170 "It is possible to select different color themes using the variable\n"
171 "MENUCONFIG_COLOR. To select a theme use:\n"
172 "\n"
173 "make MENUCONFIG_COLOR=<theme> menuconfig\n"
174 "\n"
175 "Available themes are\n"
176 " mono => selects colors suitable for monochrome displays\n"
177 " blackbg => selects a color scheme with black background\n"
178 " classic => theme with blue background. The classic look\n"
179 " bluetitle => an LCD friendly version of classic. (default)\n"
180 "\n",
181 menu_instructions[] =
182 "Arrow keys navigate the menu. "
183 "<Enter> selects submenus ---> (or empty submenus ----). "
184 "Highlighted letters are hotkeys. "
185 "Pressing <Y> includes, <N> excludes, <M> modularizes features. "
186 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. "
187 "Legend: [*] built-in [ ] excluded <M> module < > module capable",
188 radiolist_instructions[] =
189 "Use the arrow keys to navigate this window or "
190 "press the hotkey of the item you wish to select "
191 "followed by the <SPACE BAR>. "
192 "Press <?> for additional information about this option.",
193 inputbox_instructions_int[] =
194 "Please enter a decimal value. "
195 "Fractions will not be accepted. "
196 "Use the <TAB> key to move from the input field to the buttons below it.",
197 inputbox_instructions_hex[] =
198 "Please enter a hexadecimal value. "
199 "Use the <TAB> key to move from the input field to the buttons below it.",
200 inputbox_instructions_string[] =
201 "Please enter a string value. "
202 "Use the <TAB> key to move from the input field to the buttons below it.",
203 setmod_text[] =
204 "This feature depends on another which has been configured as a module.\n"
205 "As a result, this feature will be built as a module.",
206 load_config_text[] =
207 "Enter the name of the configuration file you wish to load. "
208 "Accept the name shown to restore the configuration you "
209 "last retrieved. Leave blank to abort.",
210 load_config_help[] =
211 "\n"
212 "For various reasons, one may wish to keep several different\n"
213 "configurations available on a single machine.\n"
214 "\n"
215 "If you have saved a previous configuration in a file other than the\n"
216 "default one, entering its name here will allow you to modify that\n"
217 "configuration.\n"
218 "\n"
219 "If you are uncertain, then you have probably never used alternate\n"
220 "configuration files. You should therefore leave this blank to abort.\n",
221 save_config_text[] =
222 "Enter a filename to which this configuration should be saved "
223 "as an alternate. Leave blank to abort.",
224 save_config_help[] =
225 "\n"
226 "For various reasons, one may wish to keep different configurations\n"
227 "available on a single machine.\n"
228 "\n"
229 "Entering a file name here will allow you to later retrieve, modify\n"
230 "and use the current configuration as an alternate to whatever\n"
231 "configuration options you have selected at that time.\n"
232 "\n"
233 "If you are uncertain what all this means then you should probably\n"
234 "leave this blank.\n",
235 search_help[] =
236 "\n"
237 "Search for symbols and display their relations.\n"
238 "Regular expressions are allowed.\n"
239 "Example: search for \"^FOO\"\n"
240 "Result:\n"
241 "-----------------------------------------------------------------\n"
242 "Symbol: FOO [=m]\n"
243 "Type : tristate\n"
244 "Prompt: Foo bus is used to drive the bar HW\n"
245 " Location:\n"
246 " -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
247 " -> PCI support (PCI [=y])\n"
248 "(1) -> PCI access mode (<choice> [=y])\n"
249 " Defined at drivers/pci/Kconfig:47\n"
250 " Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
251 " Selects: LIBCRC32\n"
252 " Selected by: BAR [=n]\n"
253 "-----------------------------------------------------------------\n"
254 "o The line 'Type:' shows the type of the configuration option for\n"
255 " this symbol (bool, tristate, string, ...)\n"
256 "o The line 'Prompt:' shows the text used in the menu structure for\n"
257 " this symbol\n"
258 "o The 'Defined at' line tells at what file / line number the symbol\n"
259 " is defined\n"
260 "o The 'Depends on:' line tells what symbols need to be defined for\n"
261 " this symbol to be visible in the menu (selectable)\n"
262 "o The 'Location:' lines tells where in the menu structure this symbol\n"
263 " is located\n"
264 " A location followed by a [=y] indicates that this is a\n"
265 " selectable menu item - and the current value is displayed inside\n"
266 " brackets.\n"
267 " Press the key in the (#) prefix to jump directly to that\n"
268 " location. You will be returned to the current search results\n"
269 " after exiting this new menu.\n"
270 "o The 'Selects:' line tells what symbols will be automatically\n"
271 " selected if this symbol is selected (y or m)\n"
272 "o The 'Selected by' line tells what symbol has selected this symbol\n"
273 "\n"
274 "Only relevant lines are shown.\n"
275 "\n\n"
276 "Search examples:\n"
277 "Examples: USB => find all symbols containing USB\n"
278 " ^USB => find all symbols starting with USB\n"
279 " USB$ => find all symbols ending with USB\n"
280 "\n";
281
282 static int indent;
283 static struct menu *current_menu;
284 static int child_count;
285 static int single_menu_mode;
286 static int show_all_options;
287 static int save_and_exit;
288 static int silent;
289 static int jump_key_char;
290
291 static void conf(struct menu *menu, struct menu *active_menu);
292
293 static char filename[PATH_MAX+1];
294 static void set_config_filename(const char *config_filename)
295 {
296 static char menu_backtitle[PATH_MAX+128];
297
298 snprintf(menu_backtitle, sizeof(menu_backtitle), "%s - %s",
299 config_filename, rootmenu.prompt->text);
300 set_dialog_backtitle(menu_backtitle);
301
302 snprintf(filename, sizeof(filename), "%s", config_filename);
303 }
304
305 struct subtitle_part {
306 struct list_head entries;
307 const char *text;
308 };
309 static LIST_HEAD(trail);
310
311 static struct subtitle_list *subtitles;
312 static void set_subtitle(void)
313 {
314 struct subtitle_part *sp;
315 struct subtitle_list *pos, *tmp;
316
317 for (pos = subtitles; pos != NULL; pos = tmp) {
318 tmp = pos->next;
319 free(pos);
320 }
321
322 subtitles = NULL;
323 list_for_each_entry(sp, &trail, entries) {
324 if (sp->text) {
325 if (pos) {
326 pos->next = xcalloc(1, sizeof(*pos));
327 pos = pos->next;
328 } else {
329 subtitles = pos = xcalloc(1, sizeof(*pos));
330 }
331 pos->text = sp->text;
332 }
333 }
334
335 set_dialog_subtitles(subtitles);
336 }
337
338 static void reset_subtitle(void)
339 {
340 struct subtitle_list *pos, *tmp;
341
342 for (pos = subtitles; pos != NULL; pos = tmp) {
343 tmp = pos->next;
344 free(pos);
345 }
346 subtitles = NULL;
347 set_dialog_subtitles(subtitles);
348 }
349
350 static int show_textbox_ext(const char *title, const char *text, int r, int c,
351 int *vscroll, int *hscroll,
352 int (*extra_key_cb)(int, size_t, size_t, void *),
353 void *data)
354 {
355 dialog_clear();
356 return dialog_textbox(title, text, r, c, vscroll, hscroll,
357 extra_key_cb, data);
358 }
359
360 static void show_textbox(const char *title, const char *text, int r, int c)
361 {
362 show_textbox_ext(title, text, r, c, NULL, NULL, NULL, NULL);
363 }
364
365 static void show_helptext(const char *title, const char *text)
366 {
367 show_textbox(title, text, 0, 0);
368 }
369
370 static void show_help(struct menu *menu)
371 {
372 struct gstr help = str_new();
373
374 help.max_width = getmaxx(stdscr) - 10;
375 menu_get_ext_help(menu, &help);
376
377 show_helptext(menu_get_prompt(menu), str_get(&help));
378 str_free(&help);
379 }
380
381 struct search_data {
382 struct list_head *head;
383 struct menu *target;
384 };
385
386 static int next_jump_key(int key)
387 {
388 if (key < '1' || key > '9')
389 return '1';
390
391 key++;
392
393 if (key > '9')
394 key = '1';
395
396 return key;
397 }
398
399 static int handle_search_keys(int key, size_t start, size_t end, void *_data)
400 {
401 struct search_data *data = _data;
402 struct jump_key *pos;
403 int index = 0;
404
405 if (key < '1' || key > '9')
406 return 0;
407
408 list_for_each_entry(pos, data->head, entries) {
409 index = next_jump_key(index);
410
411 if (pos->offset < start)
412 continue;
413
414 if (pos->offset >= end)
415 break;
416
417 if (key == index) {
418 data->target = pos->target;
419 return 1;
420 }
421 }
422
423 return 0;
424 }
425
426 int get_jump_key_char(void)
427 {
428 jump_key_char = next_jump_key(jump_key_char);
429
430 return jump_key_char;
431 }
432
433 static void search_conf(void)
434 {
435 struct symbol **sym_arr;
436 struct gstr res;
437 struct gstr title;
438 char *dialog_input;
439 int dres, vscroll = 0, hscroll = 0;
440 bool again;
441 struct gstr sttext;
442 struct subtitle_part stpart;
443
444 title = str_new();
445 str_printf( &title, "Enter (sub)string or regexp to search for "
446 "(with or without \"%s\")", CONFIG_);
447
448 again:
449 dialog_clear();
450 dres = dialog_inputbox("Search Configuration Parameter",
451 str_get(&title),
452 10, 75, "");
453 switch (dres) {
454 case 0:
455 break;
456 case 1:
457 show_helptext("Search Configuration", search_help);
458 goto again;
459 default:
460 str_free(&title);
461 return;
462 }
463
464 /* strip the prefix if necessary */
465 dialog_input = dialog_input_result;
466 if (strncasecmp(dialog_input_result, CONFIG_, strlen(CONFIG_)) == 0)
467 dialog_input += strlen(CONFIG_);
468
469 sttext = str_new();
470 str_printf(&sttext, "Search (%s)", dialog_input_result);
471 stpart.text = str_get(&sttext);
472 list_add_tail(&stpart.entries, &trail);
473
474 sym_arr = sym_re_search(dialog_input);
475 do {
476 LIST_HEAD(head);
477 struct search_data data = {
478 .head = &head,
479 };
480 struct jump_key *pos, *tmp;
481
482 jump_key_char = 0;
483 res = get_relations_str(sym_arr, &head);
484 set_subtitle();
485 dres = show_textbox_ext("Search Results", str_get(&res), 0, 0,
486 &vscroll, &hscroll,
487 handle_search_keys, &data);
488 again = false;
489 if (dres >= '1' && dres <= '9') {
490 assert(data.target != NULL);
491 conf(data.target->parent, data.target);
492 again = true;
493 }
494 str_free(&res);
495 list_for_each_entry_safe(pos, tmp, &head, entries)
496 free(pos);
497 } while (again);
498 free(sym_arr);
499 str_free(&title);
500 list_del(trail.prev);
501 str_free(&sttext);
502 }
503
504 static void build_conf(struct menu *menu)
505 {
506 struct symbol *sym;
507 struct property *prop;
508 struct menu *child;
509 int type, tmp, doint = 2;
510 tristate val;
511 char ch;
512 bool visible;
513
514 /*
515 * note: menu_is_visible() has side effect that it will
516 * recalc the value of the symbol.
517 */
518 visible = menu_is_visible(menu);
519 if (show_all_options && !menu_has_prompt(menu))
520 return;
521 else if (!show_all_options && !visible)
522 return;
523
524 sym = menu->sym;
525 prop = menu->prompt;
526 if (!sym) {
527 if (prop && menu != current_menu) {
528 const char *prompt = menu_get_prompt(menu);
529 switch (prop->type) {
530 case P_MENU:
531 child_count++;
532 if (single_menu_mode) {
533 item_make("%s%*c%s",
534 menu->data ? "-->" : "++>",
535 indent + 1, ' ', prompt);
536 } else
537 item_make(" %*c%s %s",
538 indent + 1, ' ', prompt,
539 menu_is_empty(menu) ? "----" : "--->");
540 item_set_tag('m');
541 item_set_data(menu);
542 if (single_menu_mode && menu->data)
543 goto conf_childs;
544 return;
545 case P_COMMENT:
546 if (prompt) {
547 child_count++;
548 item_make(" %*c*** %s ***", indent + 1, ' ', prompt);
549 item_set_tag(':');
550 item_set_data(menu);
551 }
552 break;
553 default:
554 if (prompt) {
555 child_count++;
556 item_make("---%*c%s", indent + 1, ' ', prompt);
557 item_set_tag(':');
558 item_set_data(menu);
559 }
560 }
561 } else
562 doint = 0;
563 goto conf_childs;
564 }
565
566 type = sym_get_type(sym);
567 if (sym_is_choice(sym)) {
568 struct symbol *def_sym = sym_get_choice_value(sym);
569 struct menu *def_menu = NULL;
570
571 child_count++;
572 for (child = menu->list; child; child = child->next) {
573 if (menu_is_visible(child) && child->sym == def_sym)
574 def_menu = child;
575 }
576
577 val = sym_get_tristate_value(sym);
578 if (sym_is_changeable(sym)) {
579 switch (type) {
580 case S_BOOLEAN:
581 item_make("[%c]", val == no ? ' ' : '*');
582 break;
583 case S_TRISTATE:
584 switch (val) {
585 case yes: ch = '*'; break;
586 case mod: ch = 'M'; break;
587 default: ch = ' '; break;
588 }
589 item_make("<%c>", ch);
590 break;
591 }
592 item_set_tag('t');
593 item_set_data(menu);
594 } else {
595 item_make(" ");
596 item_set_tag(def_menu ? 't' : ':');
597 item_set_data(menu);
598 }
599
600 item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
601 if (val == yes) {
602 if (def_menu) {
603 item_add_str(" (%s)", menu_get_prompt(def_menu));
604 item_add_str(" --->");
605 if (def_menu->list) {
606 indent += 2;
607 build_conf(def_menu);
608 indent -= 2;
609 }
610 }
611 return;
612 }
613 } else {
614 if (menu == current_menu) {
615 item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
616 item_set_tag(':');
617 item_set_data(menu);
618 goto conf_childs;
619 }
620 child_count++;
621 val = sym_get_tristate_value(sym);
622 if (sym_is_choice_value(sym) && val == yes) {
623 item_make(" ");
624 item_set_tag(':');
625 item_set_data(menu);
626 } else {
627 switch (type) {
628 case S_BOOLEAN:
629 if (sym_is_changeable(sym))
630 item_make("[%c]", val == no ? ' ' : '*');
631 else
632 item_make("-%c-", val == no ? ' ' : '*');
633 item_set_tag('t');
634 item_set_data(menu);
635 break;
636 case S_TRISTATE:
637 switch (val) {
638 case yes: ch = '*'; break;
639 case mod: ch = 'M'; break;
640 default: ch = ' '; break;
641 }
642 if (sym_is_changeable(sym)) {
643 if (sym->rev_dep.tri == mod)
644 item_make("{%c}", ch);
645 else
646 item_make("<%c>", ch);
647 } else
648 item_make("-%c-", ch);
649 item_set_tag('t');
650 item_set_data(menu);
651 break;
652 default:
653 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
654 item_make("(%s)", sym_get_string_value(sym));
655 tmp = indent - tmp + 4;
656 if (tmp < 0)
657 tmp = 0;
658 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
659 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
660 "" : " (NEW)");
661 item_set_tag('s');
662 item_set_data(menu);
663 goto conf_childs;
664 }
665 }
666 item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
667 (sym_has_value(sym) || !sym_is_changeable(sym)) ?
668 "" : " (NEW)");
669 if (menu->prompt->type == P_MENU) {
670 item_add_str(" %s", menu_is_empty(menu) ? "----" : "--->");
671 return;
672 }
673 }
674
675 conf_childs:
676 indent += doint;
677 for (child = menu->list; child; child = child->next)
678 build_conf(child);
679 indent -= doint;
680 }
681
682 static void conf_choice(struct menu *menu)
683 {
684 const char *prompt = menu_get_prompt(menu);
685 struct menu *child;
686 struct symbol *active;
687
688 active = sym_get_choice_value(menu->sym);
689 while (1) {
690 int res;
691 int selected;
692 item_reset();
693
694 current_menu = menu;
695 for (child = menu->list; child; child = child->next) {
696 if (!menu_is_visible(child))
697 continue;
698 if (child->sym)
699 item_make("%s", menu_get_prompt(child));
700 else {
701 item_make("*** %s ***", menu_get_prompt(child));
702 item_set_tag(':');
703 }
704 item_set_data(child);
705 if (child->sym == active)
706 item_set_selected(1);
707 if (child->sym == sym_get_choice_value(menu->sym))
708 item_set_tag('X');
709 }
710 dialog_clear();
711 res = dialog_checklist(prompt ? prompt : "Main Menu",
712 radiolist_instructions,
713 MENUBOX_HEIGTH_MIN,
714 MENUBOX_WIDTH_MIN,
715 CHECKLIST_HEIGTH_MIN);
716 selected = item_activate_selected();
717 switch (res) {
718 case 0:
719 if (selected) {
720 child = item_data();
721 if (!child->sym)
722 break;
723
724 sym_set_tristate_value(child->sym, yes);
725 }
726 return;
727 case 1:
728 if (selected) {
729 child = item_data();
730 show_help(child);
731 active = child->sym;
732 } else
733 show_help(menu);
734 break;
735 case KEY_ESC:
736 return;
737 case -ERRDISPLAYTOOSMALL:
738 return;
739 }
740 }
741 }
742
743 static void conf_string(struct menu *menu)
744 {
745 const char *prompt = menu_get_prompt(menu);
746
747 while (1) {
748 int res;
749 const char *heading;
750
751 switch (sym_get_type(menu->sym)) {
752 case S_INT:
753 heading = inputbox_instructions_int;
754 break;
755 case S_HEX:
756 heading = inputbox_instructions_hex;
757 break;
758 case S_STRING:
759 heading = inputbox_instructions_string;
760 break;
761 default:
762 heading = "Internal mconf error!";
763 }
764 dialog_clear();
765 res = dialog_inputbox(prompt ? prompt : "Main Menu",
766 heading, 10, 75,
767 sym_get_string_value(menu->sym));
768 switch (res) {
769 case 0:
770 if (sym_set_string_value(menu->sym, dialog_input_result))
771 return;
772 show_textbox(NULL, "You have made an invalid entry.", 5, 43);
773 break;
774 case 1:
775 show_help(menu);
776 break;
777 case KEY_ESC:
778 return;
779 }
780 }
781 }
782
783 static void conf_load(void)
784 {
785
786 while (1) {
787 int res;
788 dialog_clear();
789 res = dialog_inputbox(NULL, load_config_text,
790 11, 55, filename);
791 switch(res) {
792 case 0:
793 if (!dialog_input_result[0])
794 return;
795 if (!conf_read(dialog_input_result)) {
796 set_config_filename(dialog_input_result);
797 conf_set_changed(true);
798 return;
799 }
800 show_textbox(NULL, "File does not exist!", 5, 38);
801 break;
802 case 1:
803 show_helptext("Load Alternate Configuration", load_config_help);
804 break;
805 case KEY_ESC:
806 return;
807 }
808 }
809 }
810
811 static void conf_save(void)
812 {
813 while (1) {
814 int res;
815 dialog_clear();
816 res = dialog_inputbox(NULL, save_config_text,
817 11, 55, filename);
818 switch(res) {
819 case 0:
820 if (!dialog_input_result[0])
821 return;
822 if (!conf_write(dialog_input_result)) {
823 set_config_filename(dialog_input_result);
824 return;
825 }
826 show_textbox(NULL, "Can't create file!", 5, 60);
827 break;
828 case 1:
829 show_helptext("Save Alternate Configuration", save_config_help);
830 break;
831 case KEY_ESC:
832 return;
833 }
834 }
835 }
836
837 static void conf(struct menu *menu, struct menu *active_menu)
838 {
839 struct menu *submenu;
840 const char *prompt = menu_get_prompt(menu);
841 struct subtitle_part stpart;
842 struct symbol *sym;
843 int res;
844 int s_scroll = 0;
845
846 if (menu != &rootmenu)
847 stpart.text = menu_get_prompt(menu);
848 else
849 stpart.text = NULL;
850 list_add_tail(&stpart.entries, &trail);
851
852 while (1) {
853 item_reset();
854 current_menu = menu;
855 build_conf(menu);
856 if (!child_count)
857 break;
858 set_subtitle();
859 dialog_clear();
860 res = dialog_menu(prompt ? prompt : "Main Menu",
861 menu_instructions,
862 active_menu, &s_scroll);
863 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
864 break;
865 if (item_count() != 0) {
866 if (!item_activate_selected())
867 continue;
868 if (!item_tag())
869 continue;
870 }
871 submenu = item_data();
872 active_menu = item_data();
873 if (submenu)
874 sym = submenu->sym;
875 else
876 sym = NULL;
877
878 switch (res) {
879 case 0:
880 switch (item_tag()) {
881 case 'm':
882 if (single_menu_mode)
883 submenu->data = (void *) (long) !submenu->data;
884 else
885 conf(submenu, NULL);
886 break;
887 case 't':
888 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
889 conf_choice(submenu);
890 else if (submenu->prompt->type == P_MENU)
891 conf(submenu, NULL);
892 break;
893 case 's':
894 conf_string(submenu);
895 break;
896 }
897 break;
898 case 2:
899 if (sym)
900 show_help(submenu);
901 else {
902 reset_subtitle();
903 show_helptext("README", mconf_readme);
904 }
905 break;
906 case 3:
907 reset_subtitle();
908 conf_save();
909 break;
910 case 4:
911 reset_subtitle();
912 conf_load();
913 break;
914 case 5:
915 if (item_is_tag('t')) {
916 if (sym_set_tristate_value(sym, yes))
917 break;
918 if (sym_set_tristate_value(sym, mod))
919 show_textbox(NULL, setmod_text, 6, 74);
920 }
921 break;
922 case 6:
923 if (item_is_tag('t'))
924 sym_set_tristate_value(sym, no);
925 break;
926 case 7:
927 if (item_is_tag('t'))
928 sym_set_tristate_value(sym, mod);
929 break;
930 case 8:
931 if (item_is_tag('t'))
932 sym_toggle_tristate_value(sym);
933 else if (item_is_tag('m'))
934 conf(submenu, NULL);
935 break;
936 case 9:
937 search_conf();
938 break;
939 case 10:
940 show_all_options = !show_all_options;
941 break;
942 }
943 }
944
945 list_del(trail.prev);
946 }
947
948 static void conf_message_callback(const char *s)
949 {
950 if (save_and_exit) {
951 if (!silent)
952 printf("%s", s);
953 } else {
954 show_textbox(NULL, s, 6, 60);
955 }
956 }
957
958 static int handle_exit(void)
959 {
960 int res;
961
962 save_and_exit = 1;
963 reset_subtitle();
964 dialog_clear();
965 if (conf_get_changed())
966 res = dialog_yesno(NULL,
967 "Do you wish to save your new configuration?\n"
968 "(Press <ESC><ESC> to continue kernel configuration.)",
969 6, 60);
970 else
971 res = -1;
972
973 end_dialog(saved_x, saved_y);
974
975 switch (res) {
976 case 0:
977 if (conf_write(filename)) {
978 fprintf(stderr, "\n\n"
979 "Error while writing of the configuration.\n"
980 "Your configuration changes were NOT saved."
981 "\n\n");
982 return 1;
983 }
984 conf_write_autoconf(0);
985 /* fall through */
986 case -1:
987 if (!silent)
988 printf("\n\n"
989 "*** End of the configuration.\n"
990 "*** Execute 'make' to start the build or try 'make help'."
991 "\n\n");
992 res = 0;
993 break;
994 default:
995 if (!silent)
996 fprintf(stderr, "\n\n"
997 "Your configuration changes were NOT saved."
998 "\n\n");
999 if (res != KEY_ESC)
1000 res = 0;
1001 }
1002
1003 return res;
1004 }
1005
1006 static void sig_handler(int signo)
1007 {
1008 exit(handle_exit());
1009 }
1010
1011 int main(int ac, char **av)
1012 {
1013 char *mode;
1014 int res;
1015
1016 signal(SIGINT, sig_handler);
1017
1018 if (ac > 1 && strcmp(av[1], "-s") == 0) {
1019 silent = 1;
1020 /* Silence conf_read() until the real callback is set up */
1021 conf_set_message_callback(NULL);
1022 av++;
1023 }
1024 conf_parse(av[1]);
1025 conf_read(NULL);
1026
1027 mode = getenv("MENUCONFIG_MODE");
1028 if (mode) {
1029 if (!strcasecmp(mode, "single_menu"))
1030 single_menu_mode = 1;
1031 }
1032
1033 if (init_dialog(NULL)) {
1034 fprintf(stderr, "Your display is too small to run Menuconfig!\n");
1035 fprintf(stderr, "It must be at least 19 lines by 80 columns.\n");
1036 return 1;
1037 }
1038
1039 set_config_filename(conf_get_configname());
1040 conf_set_message_callback(conf_message_callback);
1041 do {
1042 conf(&rootmenu, NULL);
1043 res = handle_exit();
1044 } while (res == KEY_ESC);
1045
1046 return res;
1047 }
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