ar71xx: enable wlan2g led in the default configuration of dir-825-c1
[openwrt/svn-archive/archive.git] / scripts / config / menu.c
1 /*
2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
4 */
5
6 #include <ctype.h>
7 #include <stdarg.h>
8 #include <stdlib.h>
9 #include <string.h>
10
11 #include "lkc.h"
12
13 static const char nohelp_text[] = "There is no help available for this option.";
14
15 struct menu rootmenu;
16 static struct menu **last_entry_ptr;
17
18 struct file *file_list;
19 struct file *current_file;
20
21 void menu_warn(struct menu *menu, const char *fmt, ...)
22 {
23 va_list ap;
24 va_start(ap, fmt);
25 fprintf(stderr, "%s:%d:warning: ", menu->file->name, menu->lineno);
26 vfprintf(stderr, fmt, ap);
27 fprintf(stderr, "\n");
28 va_end(ap);
29 }
30
31 static void prop_warn(struct property *prop, const char *fmt, ...)
32 {
33 va_list ap;
34 va_start(ap, fmt);
35 fprintf(stderr, "%s:%d:warning: ", prop->file->name, prop->lineno);
36 vfprintf(stderr, fmt, ap);
37 fprintf(stderr, "\n");
38 va_end(ap);
39 }
40
41 void _menu_init(void)
42 {
43 current_entry = current_menu = &rootmenu;
44 last_entry_ptr = &rootmenu.list;
45 }
46
47 void menu_add_entry(struct symbol *sym)
48 {
49 struct menu *menu;
50
51 menu = xmalloc(sizeof(*menu));
52 memset(menu, 0, sizeof(*menu));
53 menu->sym = sym;
54 menu->parent = current_menu;
55 menu->file = current_file;
56 menu->lineno = zconf_lineno();
57
58 *last_entry_ptr = menu;
59 last_entry_ptr = &menu->next;
60 current_entry = menu;
61 if (sym)
62 menu_add_symbol(P_SYMBOL, sym, NULL);
63 }
64
65 void menu_end_entry(void)
66 {
67 }
68
69 struct menu *menu_add_menu(void)
70 {
71 menu_end_entry();
72 last_entry_ptr = &current_entry->list;
73 return current_menu = current_entry;
74 }
75
76 void menu_end_menu(void)
77 {
78 last_entry_ptr = &current_menu->next;
79 current_menu = current_menu->parent;
80 }
81
82 static struct expr *menu_check_dep(struct expr *e)
83 {
84 if (!e)
85 return e;
86
87 switch (e->type) {
88 case E_NOT:
89 e->left.expr = menu_check_dep(e->left.expr);
90 break;
91 case E_OR:
92 case E_AND:
93 e->left.expr = menu_check_dep(e->left.expr);
94 e->right.expr = menu_check_dep(e->right.expr);
95 break;
96 case E_SYMBOL:
97 /* change 'm' into 'm' && MODULES */
98 if (e->left.sym == &symbol_mod)
99 return expr_alloc_and(e, expr_alloc_symbol(modules_sym));
100 break;
101 default:
102 break;
103 }
104 return e;
105 }
106
107 void menu_add_dep(struct expr *dep)
108 {
109 current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep));
110 }
111
112 void menu_set_type(int type)
113 {
114 struct symbol *sym = current_entry->sym;
115
116 if (sym->type == type)
117 return;
118 if (sym->type == S_UNKNOWN) {
119 sym->type = type;
120 return;
121 }
122 menu_warn(current_entry, "type of '%s' redefined from '%s' to '%s'",
123 sym->name ? sym->name : "<choice>",
124 sym_type_name(sym->type), sym_type_name(type));
125 }
126
127 struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
128 {
129 struct property *prop = prop_alloc(type, current_entry->sym);
130
131 prop->menu = current_entry;
132 prop->expr = expr;
133 prop->visible.expr = menu_check_dep(dep);
134
135 if (prompt) {
136 if (isspace(*prompt)) {
137 prop_warn(prop, "leading whitespace ignored");
138 while (isspace(*prompt))
139 prompt++;
140 }
141 if (current_entry->prompt && current_entry != &rootmenu)
142 prop_warn(prop, "prompt redefined");
143
144 /* Apply all upper menus' visibilities to actual prompts. */
145 if(type == P_PROMPT) {
146 struct menu *menu = current_entry;
147
148 while ((menu = menu->parent) != NULL) {
149 if (!menu->visibility)
150 continue;
151 prop->visible.expr
152 = expr_alloc_and(prop->visible.expr,
153 menu->visibility);
154 }
155 }
156
157 current_entry->prompt = prop;
158 }
159 prop->text = prompt;
160
161 return prop;
162 }
163
164 struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep)
165 {
166 return menu_add_prop(type, prompt, NULL, dep);
167 }
168
169 void menu_add_visibility(struct expr *expr)
170 {
171 current_entry->visibility = expr_alloc_and(current_entry->visibility,
172 expr);
173 }
174
175 void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
176 {
177 menu_add_prop(type, NULL, expr, dep);
178 }
179
180 void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
181 {
182 menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
183 }
184
185 void menu_add_option(int token, char *arg)
186 {
187 struct property *prop;
188
189 switch (token) {
190 case T_OPT_MODULES:
191 prop = prop_alloc(P_DEFAULT, modules_sym);
192 prop->expr = expr_alloc_symbol(current_entry->sym);
193 break;
194 case T_OPT_DEFCONFIG_LIST:
195 if (!sym_defconfig_list)
196 sym_defconfig_list = current_entry->sym;
197 else if (sym_defconfig_list != current_entry->sym)
198 zconf_error("trying to redefine defconfig symbol");
199 break;
200 case T_OPT_ENV:
201 prop_add_env(arg);
202 break;
203 }
204 }
205
206 static int menu_validate_number(struct symbol *sym, struct symbol *sym2)
207 {
208 return sym2->type == S_INT || sym2->type == S_HEX ||
209 (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name));
210 }
211
212 static void sym_check_prop(struct symbol *sym)
213 {
214 struct property *prop;
215 struct symbol *sym2;
216 for (prop = sym->prop; prop; prop = prop->next) {
217 switch (prop->type) {
218 case P_DEFAULT:
219 if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
220 prop->expr->type != E_SYMBOL)
221 prop_warn(prop,
222 "default for config symbol '%s'"
223 " must be a single symbol", sym->name);
224 if (prop->expr->type != E_SYMBOL)
225 break;
226 sym2 = prop_get_symbol(prop);
227 if (sym->type == S_HEX || sym->type == S_INT) {
228 if (!menu_validate_number(sym, sym2))
229 prop_warn(prop,
230 "'%s': number is invalid",
231 sym->name);
232 }
233 break;
234 case P_SELECT:
235 sym2 = prop_get_symbol(prop);
236 if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE)
237 prop_warn(prop,
238 "config symbol '%s' uses select, but is "
239 "not boolean or tristate", sym->name);
240 else if (sym2->type != S_UNKNOWN &&
241 sym2->type != S_BOOLEAN &&
242 sym2->type != S_TRISTATE)
243 prop_warn(prop,
244 "'%s' has wrong type. 'select' only "
245 "accept arguments of boolean and "
246 "tristate type", sym2->name);
247 break;
248 case P_RANGE:
249 if (sym->type != S_INT && sym->type != S_HEX)
250 prop_warn(prop, "range is only allowed "
251 "for int or hex symbols");
252 if (!menu_validate_number(sym, prop->expr->left.sym) ||
253 !menu_validate_number(sym, prop->expr->right.sym))
254 prop_warn(prop, "range is invalid");
255 break;
256 default:
257 ;
258 }
259 }
260 }
261
262 void menu_finalize(struct menu *parent)
263 {
264 struct menu *menu, *last_menu;
265 struct symbol *sym;
266 struct property *prop;
267 struct expr *parentdep, *basedep, *dep, *dep2, **ep;
268
269 sym = parent->sym;
270 if (parent->list) {
271 if (sym && sym_is_choice(sym)) {
272 if (sym->type == S_UNKNOWN) {
273 /* find the first choice value to find out choice type */
274 current_entry = parent;
275 for (menu = parent->list; menu; menu = menu->next) {
276 if (menu->sym && menu->sym->type != S_UNKNOWN) {
277 menu_set_type(menu->sym->type);
278 break;
279 }
280 }
281 }
282 /* set the type of the remaining choice values */
283 for (menu = parent->list; menu; menu = menu->next) {
284 current_entry = menu;
285 if (menu->sym && menu->sym->type == S_UNKNOWN)
286 menu_set_type(sym->type);
287 }
288 parentdep = expr_alloc_symbol(sym);
289 } else if (parent->prompt)
290 parentdep = parent->prompt->visible.expr;
291 else
292 parentdep = parent->dep;
293
294 for (menu = parent->list; menu; menu = menu->next) {
295 basedep = expr_transform(menu->dep);
296 basedep = expr_alloc_and(expr_copy(parentdep), basedep);
297 basedep = expr_eliminate_dups(basedep);
298 menu->dep = basedep;
299 if (menu->sym)
300 prop = menu->sym->prop;
301 else
302 prop = menu->prompt;
303 for (; prop; prop = prop->next) {
304 if (prop->menu != menu)
305 continue;
306 dep = expr_transform(prop->visible.expr);
307 dep = expr_alloc_and(expr_copy(basedep), dep);
308 dep = expr_eliminate_dups(dep);
309 if (menu->sym && menu->sym->type != S_TRISTATE)
310 dep = expr_trans_bool(dep);
311 prop->visible.expr = dep;
312 if (prop->type == P_SELECT) {
313 struct symbol *es = prop_get_symbol(prop);
314 es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
315 expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
316 }
317 }
318 }
319 for (menu = parent->list; menu; menu = menu->next)
320 menu_finalize(menu);
321 } else if (sym) {
322 basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
323 basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
324 basedep = expr_eliminate_dups(expr_transform(basedep));
325 last_menu = NULL;
326 for (menu = parent->next; menu; menu = menu->next) {
327 dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
328 if (!expr_contains_symbol(dep, sym))
329 break;
330 if (expr_depends_symbol(dep, sym))
331 goto next;
332 dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
333 dep = expr_eliminate_dups(expr_transform(dep));
334 dep2 = expr_copy(basedep);
335 expr_eliminate_eq(&dep, &dep2);
336 expr_free(dep);
337 if (!expr_is_yes(dep2)) {
338 expr_free(dep2);
339 break;
340 }
341 expr_free(dep2);
342 next:
343 menu_finalize(menu);
344 menu->parent = parent;
345 last_menu = menu;
346 }
347 if (last_menu) {
348 parent->list = parent->next;
349 parent->next = last_menu->next;
350 last_menu->next = NULL;
351 }
352
353 sym->dir_dep.expr = expr_alloc_or(sym->dir_dep.expr, parent->dep);
354 }
355 for (menu = parent->list; menu; menu = menu->next) {
356 if (sym && sym_is_choice(sym) &&
357 menu->sym && !sym_is_choice_value(menu->sym)) {
358 current_entry = menu;
359 menu->sym->flags |= SYMBOL_CHOICEVAL;
360 if (!menu->prompt)
361 menu_warn(menu, "choice value must have a prompt");
362 for (prop = menu->sym->prop; prop; prop = prop->next) {
363 if (prop->type == P_DEFAULT)
364 prop_warn(prop, "defaults for choice "
365 "values not supported");
366 if (prop->menu == menu)
367 continue;
368 if (prop->type == P_PROMPT &&
369 prop->menu->parent->sym != sym)
370 prop_warn(prop, "choice value used outside its choice group");
371 }
372 /* Non-tristate choice values of tristate choices must
373 * depend on the choice being set to Y. The choice
374 * values' dependencies were propagated to their
375 * properties above, so the change here must be re-
376 * propagated.
377 */
378 if (sym->type == S_TRISTATE && menu->sym->type != S_TRISTATE) {
379 basedep = expr_alloc_comp(E_EQUAL, sym, &symbol_yes);
380 menu->dep = expr_alloc_and(basedep, menu->dep);
381 for (prop = menu->sym->prop; prop; prop = prop->next) {
382 if (prop->menu != menu)
383 continue;
384 prop->visible.expr = expr_alloc_and(expr_copy(basedep),
385 prop->visible.expr);
386 }
387 }
388 menu_add_symbol(P_CHOICE, sym, NULL);
389 prop = sym_get_choice_prop(sym);
390 for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
391 ;
392 *ep = expr_alloc_one(E_LIST, NULL);
393 (*ep)->right.sym = menu->sym;
394 }
395 if (menu->list && (!menu->prompt || !menu->prompt->text)) {
396 for (last_menu = menu->list; ; last_menu = last_menu->next) {
397 last_menu->parent = parent;
398 if (!last_menu->next)
399 break;
400 }
401 last_menu->next = menu->next;
402 menu->next = menu->list;
403 menu->list = NULL;
404 }
405 }
406
407 if (sym && !(sym->flags & SYMBOL_WARNED)) {
408 if (sym->type == S_UNKNOWN)
409 menu_warn(parent, "config symbol defined without type");
410
411 if (sym_is_choice(sym) && !parent->prompt)
412 menu_warn(parent, "choice must have a prompt");
413
414 /* Check properties connected to this symbol */
415 sym_check_prop(sym);
416 sym->flags |= SYMBOL_WARNED;
417 }
418
419 if (sym && !sym_is_optional(sym) && parent->prompt) {
420 sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
421 expr_alloc_and(parent->prompt->visible.expr,
422 expr_alloc_symbol(&symbol_mod)));
423 }
424 }
425
426 bool menu_has_prompt(struct menu *menu)
427 {
428 if (!menu->prompt)
429 return false;
430 return true;
431 }
432
433 bool menu_is_visible(struct menu *menu)
434 {
435 struct menu *child;
436 struct symbol *sym;
437 tristate visible;
438
439 if (!menu->prompt)
440 return false;
441
442 if (menu->visibility) {
443 if (expr_calc_value(menu->visibility) == no)
444 return no;
445 }
446
447 sym = menu->sym;
448 if (sym) {
449 sym_calc_value(sym);
450 visible = menu->prompt->visible.tri;
451 } else
452 visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
453
454 if (visible != no)
455 return true;
456
457 if (!sym || sym_get_tristate_value(menu->sym) == no)
458 return false;
459
460 for (child = menu->list; child; child = child->next) {
461 if (menu_is_visible(child)) {
462 if (sym)
463 sym->flags |= SYMBOL_DEF_USER;
464 return true;
465 }
466 }
467
468 return false;
469 }
470
471 const char *menu_get_prompt(struct menu *menu)
472 {
473 if (menu->prompt)
474 return menu->prompt->text;
475 else if (menu->sym)
476 return menu->sym->name;
477 return NULL;
478 }
479
480 struct menu *menu_get_root_menu(struct menu *menu)
481 {
482 return &rootmenu;
483 }
484
485 struct menu *menu_get_parent_menu(struct menu *menu)
486 {
487 enum prop_type type;
488
489 for (; menu != &rootmenu; menu = menu->parent) {
490 type = menu->prompt ? menu->prompt->type : 0;
491 if (type == P_MENU)
492 break;
493 }
494 return menu;
495 }
496
497 bool menu_has_help(struct menu *menu)
498 {
499 return menu->help != NULL;
500 }
501
502 const char *menu_get_help(struct menu *menu)
503 {
504 if (menu->help)
505 return menu->help;
506 else
507 return "";
508 }
509
510 static void get_prompt_str(struct gstr *r, struct property *prop,
511 struct list_head *head)
512 {
513 int i, j;
514 struct menu *submenu[8], *menu, *location = NULL;
515 struct jump_key *jump;
516
517 str_printf(r, _("Prompt: %s\n"), _(prop->text));
518 str_printf(r, _(" Defined at %s:%d\n"), prop->menu->file->name,
519 prop->menu->lineno);
520 if (!expr_is_yes(prop->visible.expr)) {
521 str_append(r, _(" Depends on: "));
522 expr_gstr_print(prop->visible.expr, r);
523 str_append(r, "\n");
524 }
525 menu = prop->menu->parent;
526 for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent) {
527 bool accessible = menu_is_visible(menu);
528
529 submenu[i++] = menu;
530 if (location == NULL && accessible)
531 location = menu;
532 }
533 if (head && location) {
534 jump = xmalloc(sizeof(struct jump_key));
535
536 if (menu_is_visible(prop->menu)) {
537 /*
538 * There is not enough room to put the hint at the
539 * beginning of the "Prompt" line. Put the hint on the
540 * last "Location" line even when it would belong on
541 * the former.
542 */
543 jump->target = prop->menu;
544 } else
545 jump->target = location;
546
547 if (list_empty(head))
548 jump->index = 0;
549 else
550 jump->index = list_entry(head->prev, struct jump_key,
551 entries)->index + 1;
552
553 list_add_tail(&jump->entries, head);
554 }
555
556 if (i > 0) {
557 str_printf(r, _(" Location:\n"));
558 for (j = 4; --i >= 0; j += 2) {
559 menu = submenu[i];
560 if (head && location && menu == location)
561 jump->offset = r->len - 1;
562 str_printf(r, "%*c-> %s", j, ' ',
563 _(menu_get_prompt(menu)));
564 if (menu->sym) {
565 str_printf(r, " (%s [=%s])", menu->sym->name ?
566 menu->sym->name : _("<choice>"),
567 sym_get_string_value(menu->sym));
568 }
569 str_append(r, "\n");
570 }
571 }
572 }
573
574 /*
575 * head is optional and may be NULL
576 */
577 void get_symbol_str(struct gstr *r, struct symbol *sym,
578 struct list_head *head)
579 {
580 bool hit;
581 struct property *prop;
582
583 if (sym && sym->name) {
584 str_printf(r, "Symbol: %s [=%s]\n", sym->name,
585 sym_get_string_value(sym));
586 str_printf(r, "Type : %s\n", sym_type_name(sym->type));
587 if (sym->type == S_INT || sym->type == S_HEX) {
588 prop = sym_get_range_prop(sym);
589 if (prop) {
590 str_printf(r, "Range : ");
591 expr_gstr_print(prop->expr, r);
592 str_append(r, "\n");
593 }
594 }
595 }
596 for_all_prompts(sym, prop)
597 get_prompt_str(r, prop, head);
598 hit = false;
599 for_all_properties(sym, prop, P_SELECT) {
600 if (!hit) {
601 str_append(r, " Selects: ");
602 hit = true;
603 } else
604 str_printf(r, " && ");
605 expr_gstr_print(prop->expr, r);
606 }
607 if (hit)
608 str_append(r, "\n");
609 if (sym->rev_dep.expr) {
610 str_append(r, _(" Selected by: "));
611 expr_gstr_print(sym->rev_dep.expr, r);
612 str_append(r, "\n");
613 }
614 str_append(r, "\n\n");
615 }
616
617 struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head)
618 {
619 struct symbol *sym;
620 struct gstr res = str_new();
621 int i;
622
623 for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
624 get_symbol_str(&res, sym, head);
625 if (!i)
626 str_append(&res, _("No matches found.\n"));
627 return res;
628 }
629
630
631 void menu_get_ext_help(struct menu *menu, struct gstr *help)
632 {
633 struct symbol *sym = menu->sym;
634 const char *help_text = nohelp_text;
635
636 if (menu_has_help(menu)) {
637 if (sym->name)
638 str_printf(help, "%s%s:\n\n", CONFIG_, sym->name);
639 help_text = menu_get_help(menu);
640 }
641 str_printf(help, "%s\n", _(help_text));
642 if (sym)
643 get_symbol_str(help, sym, NULL);
644 }