[PATCH] dvb: usb: support Medion hybrid USB2.0 DVB-T/analogue box
[linux-2.6.git] / scripts / kconfig / conf.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 <stdlib.h>
8 #include <string.h>
9 #include <unistd.h>
10 #include <time.h>
11 #include <sys/stat.h>
12
13 #define LKC_DIRECT_LINK
14 #include "lkc.h"
15
16 static void conf(struct menu *menu);
17 static void check_conf(struct menu *menu);
18
19 enum {
20         ask_all,
21         ask_new,
22         ask_silent,
23         set_default,
24         set_yes,
25         set_mod,
26         set_no,
27         set_random
28 } input_mode = ask_all;
29 char *defconfig_file;
30
31 static int indent = 1;
32 static int valid_stdin = 1;
33 static int conf_cnt;
34 static char line[128];
35 static struct menu *rootEntry;
36
37 static char nohelp_text[] = N_("Sorry, no help available for this option yet.\n");
38
39 static void strip(char *str)
40 {
41         char *p = str;
42         int l;
43
44         while ((isspace(*p)))
45                 p++;
46         l = strlen(p);
47         if (p != str)
48                 memmove(str, p, l + 1);
49         if (!l)
50                 return;
51         p = str + l - 1;
52         while ((isspace(*p)))
53                 *p-- = 0;
54 }
55
56 static void check_stdin(void)
57 {
58         if (!valid_stdin && input_mode == ask_silent) {
59                 printf(_("aborted!\n\n"));
60                 printf(_("Console input/output is redirected. "));
61                 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
62                 exit(1);
63         }
64 }
65
66 static void conf_askvalue(struct symbol *sym, const char *def)
67 {
68         enum symbol_type type = sym_get_type(sym);
69         tristate val;
70
71         if (!sym_has_value(sym))
72                 printf("(NEW) ");
73
74         line[0] = '\n';
75         line[1] = 0;
76
77         if (!sym_is_changable(sym)) {
78                 printf("%s\n", def);
79                 line[0] = '\n';
80                 line[1] = 0;
81                 return;
82         }
83
84         switch (input_mode) {
85         case ask_new:
86         case ask_silent:
87                 if (sym_has_value(sym)) {
88                         printf("%s\n", def);
89                         return;
90                 }
91                 check_stdin();
92         case ask_all:
93                 fflush(stdout);
94                 fgets(line, 128, stdin);
95                 return;
96         case set_default:
97                 printf("%s\n", def);
98                 return;
99         default:
100                 break;
101         }
102
103         switch (type) {
104         case S_INT:
105         case S_HEX:
106         case S_STRING:
107                 printf("%s\n", def);
108                 return;
109         default:
110                 ;
111         }
112         switch (input_mode) {
113         case set_yes:
114                 if (sym_tristate_within_range(sym, yes)) {
115                         line[0] = 'y';
116                         line[1] = '\n';
117                         line[2] = 0;
118                         break;
119                 }
120         case set_mod:
121                 if (type == S_TRISTATE) {
122                         if (sym_tristate_within_range(sym, mod)) {
123                                 line[0] = 'm';
124                                 line[1] = '\n';
125                                 line[2] = 0;
126                                 break;
127                         }
128                 } else {
129                         if (sym_tristate_within_range(sym, yes)) {
130                                 line[0] = 'y';
131                                 line[1] = '\n';
132                                 line[2] = 0;
133                                 break;
134                         }
135                 }
136         case set_no:
137                 if (sym_tristate_within_range(sym, no)) {
138                         line[0] = 'n';
139                         line[1] = '\n';
140                         line[2] = 0;
141                         break;
142                 }
143         case set_random:
144                 do {
145                         val = (tristate)(random() % 3);
146                 } while (!sym_tristate_within_range(sym, val));
147                 switch (val) {
148                 case no: line[0] = 'n'; break;
149                 case mod: line[0] = 'm'; break;
150                 case yes: line[0] = 'y'; break;
151                 }
152                 line[1] = '\n';
153                 line[2] = 0;
154                 break;
155         default:
156                 break;
157         }
158         printf("%s", line);
159 }
160
161 int conf_string(struct menu *menu)
162 {
163         struct symbol *sym = menu->sym;
164         const char *def, *help;
165
166         while (1) {
167                 printf("%*s%s ", indent - 1, "", menu->prompt->text);
168                 printf("(%s) ", sym->name);
169                 def = sym_get_string_value(sym);
170                 if (sym_get_string_value(sym))
171                         printf("[%s] ", def);
172                 conf_askvalue(sym, def);
173                 switch (line[0]) {
174                 case '\n':
175                         break;
176                 case '?':
177                         /* print help */
178                         if (line[1] == '\n') {
179                                 help = nohelp_text;
180                                 if (menu->sym->help)
181                                         help = menu->sym->help;
182                                 printf("\n%s\n", menu->sym->help);
183                                 def = NULL;
184                                 break;
185                         }
186                 default:
187                         line[strlen(line)-1] = 0;
188                         def = line;
189                 }
190                 if (def && sym_set_string_value(sym, def))
191                         return 0;
192         }
193 }
194
195 static int conf_sym(struct menu *menu)
196 {
197         struct symbol *sym = menu->sym;
198         int type;
199         tristate oldval, newval;
200         const char *help;
201
202         while (1) {
203                 printf("%*s%s ", indent - 1, "", menu->prompt->text);
204                 if (sym->name)
205                         printf("(%s) ", sym->name);
206                 type = sym_get_type(sym);
207                 putchar('[');
208                 oldval = sym_get_tristate_value(sym);
209                 switch (oldval) {
210                 case no:
211                         putchar('N');
212                         break;
213                 case mod:
214                         putchar('M');
215                         break;
216                 case yes:
217                         putchar('Y');
218                         break;
219                 }
220                 if (oldval != no && sym_tristate_within_range(sym, no))
221                         printf("/n");
222                 if (oldval != mod && sym_tristate_within_range(sym, mod))
223                         printf("/m");
224                 if (oldval != yes && sym_tristate_within_range(sym, yes))
225                         printf("/y");
226                 if (sym->help)
227                         printf("/?");
228                 printf("] ");
229                 conf_askvalue(sym, sym_get_string_value(sym));
230                 strip(line);
231
232                 switch (line[0]) {
233                 case 'n':
234                 case 'N':
235                         newval = no;
236                         if (!line[1] || !strcmp(&line[1], "o"))
237                                 break;
238                         continue;
239                 case 'm':
240                 case 'M':
241                         newval = mod;
242                         if (!line[1])
243                                 break;
244                         continue;
245                 case 'y':
246                 case 'Y':
247                         newval = yes;
248                         if (!line[1] || !strcmp(&line[1], "es"))
249                                 break;
250                         continue;
251                 case 0:
252                         newval = oldval;
253                         break;
254                 case '?':
255                         goto help;
256                 default:
257                         continue;
258                 }
259                 if (sym_set_tristate_value(sym, newval))
260                         return 0;
261 help:
262                 help = nohelp_text;
263                 if (sym->help)
264                         help = sym->help;
265                 printf("\n%s\n", help);
266         }
267 }
268
269 static int conf_choice(struct menu *menu)
270 {
271         struct symbol *sym, *def_sym;
272         struct menu *child;
273         int type;
274         bool is_new;
275
276         sym = menu->sym;
277         type = sym_get_type(sym);
278         is_new = !sym_has_value(sym);
279         if (sym_is_changable(sym)) {
280                 conf_sym(menu);
281                 sym_calc_value(sym);
282                 switch (sym_get_tristate_value(sym)) {
283                 case no:
284                         return 1;
285                 case mod:
286                         return 0;
287                 case yes:
288                         break;
289                 }
290         } else {
291                 switch (sym_get_tristate_value(sym)) {
292                 case no:
293                         return 1;
294                 case mod:
295                         printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
296                         return 0;
297                 case yes:
298                         break;
299                 }
300         }
301
302         while (1) {
303                 int cnt, def;
304
305                 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
306                 def_sym = sym_get_choice_value(sym);
307                 cnt = def = 0;
308                 line[0] = '0';
309                 line[1] = 0;
310                 for (child = menu->list; child; child = child->next) {
311                         if (!menu_is_visible(child))
312                                 continue;
313                         if (!child->sym) {
314                                 printf("%*c %s\n", indent, '*', menu_get_prompt(child));
315                                 continue;
316                         }
317                         cnt++;
318                         if (child->sym == def_sym) {
319                                 def = cnt;
320                                 printf("%*c", indent, '>');
321                         } else
322                                 printf("%*c", indent, ' ');
323                         printf(" %d. %s", cnt, menu_get_prompt(child));
324                         if (child->sym->name)
325                                 printf(" (%s)", child->sym->name);
326                         if (!sym_has_value(child->sym))
327                                 printf(" (NEW)");
328                         printf("\n");
329                 }
330                 printf("%*schoice", indent - 1, "");
331                 if (cnt == 1) {
332                         printf("[1]: 1\n");
333                         goto conf_childs;
334                 }
335                 printf("[1-%d", cnt);
336                 if (sym->help)
337                         printf("?");
338                 printf("]: ");
339                 switch (input_mode) {
340                 case ask_new:
341                 case ask_silent:
342                         if (!is_new) {
343                                 cnt = def;
344                                 printf("%d\n", cnt);
345                                 break;
346                         }
347                         check_stdin();
348                 case ask_all:
349                         fflush(stdout);
350                         fgets(line, 128, stdin);
351                         strip(line);
352                         if (line[0] == '?') {
353                                 printf("\n%s\n", menu->sym->help ?
354                                         menu->sym->help : nohelp_text);
355                                 continue;
356                         }
357                         if (!line[0])
358                                 cnt = def;
359                         else if (isdigit(line[0]))
360                                 cnt = atoi(line);
361                         else
362                                 continue;
363                         break;
364                 case set_random:
365                         def = (random() % cnt) + 1;
366                 case set_default:
367                 case set_yes:
368                 case set_mod:
369                 case set_no:
370                         cnt = def;
371                         printf("%d\n", cnt);
372                         break;
373                 }
374
375         conf_childs:
376                 for (child = menu->list; child; child = child->next) {
377                         if (!child->sym || !menu_is_visible(child))
378                                 continue;
379                         if (!--cnt)
380                                 break;
381                 }
382                 if (!child)
383                         continue;
384                 if (line[strlen(line) - 1] == '?') {
385                         printf("\n%s\n", child->sym->help ?
386                                 child->sym->help : nohelp_text);
387                         continue;
388                 }
389                 sym_set_choice_value(sym, child->sym);
390                 if (child->list) {
391                         indent += 2;
392                         conf(child->list);
393                         indent -= 2;
394                 }
395                 return 1;
396         }
397 }
398
399 static void conf(struct menu *menu)
400 {
401         struct symbol *sym;
402         struct property *prop;
403         struct menu *child;
404
405         if (!menu_is_visible(menu))
406                 return;
407
408         sym = menu->sym;
409         prop = menu->prompt;
410         if (prop) {
411                 const char *prompt;
412
413                 switch (prop->type) {
414                 case P_MENU:
415                         if (input_mode == ask_silent && rootEntry != menu) {
416                                 check_conf(menu);
417                                 return;
418                         }
419                 case P_COMMENT:
420                         prompt = menu_get_prompt(menu);
421                         if (prompt)
422                                 printf("%*c\n%*c %s\n%*c\n",
423                                         indent, '*',
424                                         indent, '*', prompt,
425                                         indent, '*');
426                 default:
427                         ;
428                 }
429         }
430
431         if (!sym)
432                 goto conf_childs;
433
434         if (sym_is_choice(sym)) {
435                 conf_choice(menu);
436                 if (sym->curr.tri != mod)
437                         return;
438                 goto conf_childs;
439         }
440
441         switch (sym->type) {
442         case S_INT:
443         case S_HEX:
444         case S_STRING:
445                 conf_string(menu);
446                 break;
447         default:
448                 conf_sym(menu);
449                 break;
450         }
451
452 conf_childs:
453         if (sym)
454                 indent += 2;
455         for (child = menu->list; child; child = child->next)
456                 conf(child);
457         if (sym)
458                 indent -= 2;
459 }
460
461 static void check_conf(struct menu *menu)
462 {
463         struct symbol *sym;
464         struct menu *child;
465
466         if (!menu_is_visible(menu))
467                 return;
468
469         sym = menu->sym;
470         if (sym) {
471                 if (sym_is_changable(sym) && !sym_has_value(sym)) {
472                         if (!conf_cnt++)
473                                 printf(_("*\n* Restart config...\n*\n"));
474                         rootEntry = menu_get_parent_menu(menu);
475                         conf(rootEntry);
476                 }
477                 if (sym_is_choice(sym) && sym_get_tristate_value(sym) != mod)
478                         return;
479         }
480
481         for (child = menu->list; child; child = child->next)
482                 check_conf(child);
483 }
484
485 int main(int ac, char **av)
486 {
487         int i = 1;
488         const char *name;
489         struct stat tmpstat;
490
491         if (ac > i && av[i][0] == '-') {
492                 switch (av[i++][1]) {
493                 case 'o':
494                         input_mode = ask_new;
495                         break;
496                 case 's':
497                         input_mode = ask_silent;
498                         valid_stdin = isatty(0) && isatty(1) && isatty(2);
499                         break;
500                 case 'd':
501                         input_mode = set_default;
502                         break;
503                 case 'D':
504                         input_mode = set_default;
505                         defconfig_file = av[i++];
506                         if (!defconfig_file) {
507                                 printf(_("%s: No default config file specified\n"),
508                                         av[0]);
509                                 exit(1);
510                         }
511                         break;
512                 case 'n':
513                         input_mode = set_no;
514                         break;
515                 case 'm':
516                         input_mode = set_mod;
517                         break;
518                 case 'y':
519                         input_mode = set_yes;
520                         break;
521                 case 'r':
522                         input_mode = set_random;
523                         srandom(time(NULL));
524                         break;
525                 case 'h':
526                 case '?':
527                         printf("%s [-o|-s] config\n", av[0]);
528                         exit(0);
529                 }
530         }
531         name = av[i];
532         if (!name) {
533                 printf(_("%s: Kconfig file missing\n"), av[0]);
534         }
535         conf_parse(name);
536         //zconfdump(stdout);
537         switch (input_mode) {
538         case set_default:
539                 if (!defconfig_file)
540                         defconfig_file = conf_get_default_confname();
541                 if (conf_read(defconfig_file)) {
542                         printf("***\n"
543                                 "*** Can't find default configuration \"%s\"!\n"
544                                 "***\n", defconfig_file);
545                         exit(1);
546                 }
547                 break;
548         case ask_silent:
549                 if (stat(".config", &tmpstat)) {
550                         printf(_("***\n"
551                                 "*** You have not yet configured your kernel!\n"
552                                 "***\n"
553                                 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
554                                 "*** \"make menuconfig\" or \"make xconfig\").\n"
555                                 "***\n"));
556                         exit(1);
557                 }
558         case ask_all:
559         case ask_new:
560                 conf_read(NULL);
561                 break;
562         default:
563                 break;
564         }
565
566         if (input_mode != ask_silent) {
567                 rootEntry = &rootmenu;
568                 conf(&rootmenu);
569                 if (input_mode == ask_all) {
570                         input_mode = ask_silent;
571                         valid_stdin = 1;
572                 }
573         }
574         do {
575                 conf_cnt = 0;
576                 check_conf(&rootmenu);
577         } while (conf_cnt);
578         if (conf_write(NULL)) {
579                 fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
580                 return 1;
581         }
582         return 0;
583 }