2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
5 * Introduced single menu mode (show all sub-menus in one large tree).
6 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
8 * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
11 #include <sys/ioctl.h>
25 #define LKC_DIRECT_LINK
27 #include "lxdialog/dialog.h"
29 static const char mconf_readme[] = N_(
32 "Some kernel features may be built directly into the kernel.\n"
33 "Some may be made into loadable runtime modules. Some features\n"
34 "may be completely removed altogether. There are also certain\n"
35 "kernel parameters which are not really features, but must be\n"
36 "entered in as decimal or hexadecimal numbers or possibly text.\n"
38 "Menu items beginning with following braces represent features that\n"
39 " [ ] can be built in or removed\n"
40 " < > can be built in, modularized or removed\n"
41 " { } can be built in or modularized (selected by other feature)\n"
42 " - - are selected by other feature,\n"
43 "while *, M or whitespace inside braces means to build in, build as\n"
44 "a module or to exclude the feature respectively.\n"
46 "To change any of these features, highlight it with the cursor\n"
47 "keys and press <Y> to build it in, <M> to make it a module or\n"
48 "<N> to removed it. You may also press the <Space Bar> to cycle\n"
49 "through the available options (ie. Y->N->M->Y).\n"
51 "Some additional keyboard hints:\n"
55 "o Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
56 " you wish to change or submenu wish to select and press <Enter>.\n"
57 " Submenus are designated by \"--->\".\n"
59 " Shortcut: Press the option's highlighted letter (hotkey).\n"
60 " Pressing a hotkey more than once will sequence\n"
61 " through all visible items which use that hotkey.\n"
63 " You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
64 " unseen options into view.\n"
66 "o To exit a menu use the cursor keys to highlight the <Exit> button\n"
67 " and press <ENTER>.\n"
69 " Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
70 " using those letters. You may press a single <ESC>, but\n"
71 " there is a delayed response which you may find annoying.\n"
73 " Also, the <TAB> and cursor keys will cycle between <Select>,\n"
74 " <Exit> and <Help>\n"
76 "o To get help with an item, use the cursor keys to highlight <Help>\n"
77 " and Press <ENTER>.\n"
79 " Shortcut: Press <H> or <?>.\n"
82 "Radiolists (Choice lists)\n"
84 "o Use the cursor keys to select the option you wish to set and press\n"
85 " <S> or the <SPACE BAR>.\n"
87 " Shortcut: Press the first letter of the option you wish to set then\n"
88 " press <S> or <SPACE BAR>.\n"
90 "o To see available help for the item, use the cursor keys to highlight\n"
91 " <Help> and Press <ENTER>.\n"
93 " Shortcut: Press <H> or <?>.\n"
95 " Also, the <TAB> and cursor keys will cycle between <Select> and\n"
101 "o Enter the requested information and press <ENTER>\n"
102 " If you are entering hexadecimal values, it is not necessary to\n"
103 " add the '0x' prefix to the entry.\n"
105 "o For help, use the <TAB> or cursor keys to highlight the help option\n"
106 " and press <ENTER>. You can try <TAB><H> as well.\n"
109 "Text Box (Help Window)\n"
111 "o Use the cursor keys to scroll up/down/left/right. The VI editor\n"
112 " keys h,j,k,l function here as do <SPACE BAR> and <B> for those\n"
113 " who are familiar with less and lynx.\n"
115 "o Press <E>, <X>, <Enter> or <Esc><Esc> to exit.\n"
118 "Alternate Configuration Files\n"
119 "-----------------------------\n"
120 "Menuconfig supports the use of alternate configuration files for\n"
121 "those who, for various reasons, find it necessary to switch\n"
122 "between different kernel configurations.\n"
124 "At the end of the main menu you will find two options. One is\n"
125 "for saving the current configuration to a file of your choosing.\n"
126 "The other option is for loading a previously saved alternate\n"
129 "Even if you don't use alternate configuration files, but you\n"
130 "find during a Menuconfig session that you have completely messed\n"
131 "up your settings, you may use the \"Load Alternate...\" option to\n"
132 "restore your previously saved settings from \".config\" without\n"
133 "restarting Menuconfig.\n"
135 "Other information\n"
136 "-----------------\n"
137 "If you use Menuconfig in an XTERM window make sure you have your\n"
138 "$TERM variable set to point to a xterm definition which supports color.\n"
139 "Otherwise, Menuconfig will look rather bad. Menuconfig will not\n"
140 "display correctly in a RXVT window because rxvt displays only one\n"
141 "intensity of color, bright.\n"
143 "Menuconfig will display larger menus on screens or xterms which are\n"
144 "set to display more than the standard 25 row by 80 column geometry.\n"
145 "In order for this to work, the \"stty size\" command must be able to\n"
146 "display the screen's current row and column geometry. I STRONGLY\n"
147 "RECOMMEND that you make sure you do NOT have the shell variables\n"
148 "LINES and COLUMNS exported into your environment. Some distributions\n"
149 "export those variables via /etc/profile. Some ncurses programs can\n"
150 "become confused when those variables (LINES & COLUMNS) don't reflect\n"
151 "the true screen size.\n"
153 "Optional personality available\n"
154 "------------------------------\n"
155 "If you prefer to have all of the kernel options listed in a single\n"
156 "menu, rather than the default multimenu hierarchy, run the menuconfig\n"
157 "with MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
159 "make MENUCONFIG_MODE=single_menu menuconfig\n"
161 "<Enter> will then unroll the appropriate category, or enfold it if it\n"
162 "is already unrolled.\n"
164 "Note that this mode can eventually be a little more CPU expensive\n"
165 "(especially with a larger number of unrolled categories) than the\n"
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"
173 "make MENUCONFIG_COLOR=<theme> menuconfig\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 => a LCD friendly version of classic. (default)\n"
181 menu_instructions[] = N_(
182 "Arrow keys navigate the menu. "
183 "<Enter> selects 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[] = N_(
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[] = N_(
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[] = N_(
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[] = N_(
201 "Please enter a string value. "
202 "Use the <TAB> key to move from the input field to the buttons below it."),
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."),
207 "There is no help available for this kernel option.\n"),
208 load_config_text[] = N_(
209 "Enter the name of the configuration file you wish to load. "
210 "Accept the name shown to restore the configuration you "
211 "last retrieved. Leave blank to abort."),
212 load_config_help[] = N_(
214 "For various reasons, one may wish to keep several different kernel\n"
215 "configurations available on a single machine.\n"
217 "If you have saved a previous configuration in a file other than the\n"
218 "kernel's default, entering the name of the file here will allow you\n"
219 "to modify that configuration.\n"
221 "If you are uncertain, then you have probably never used alternate\n"
222 "configuration files. You should therefor leave this blank to abort.\n"),
223 save_config_text[] = N_(
224 "Enter a filename to which this configuration should be saved "
225 "as an alternate. Leave blank to abort."),
226 save_config_help[] = N_(
228 "For various reasons, one may wish to keep different kernel\n"
229 "configurations available on a single machine.\n"
231 "Entering a file name here will allow you to later retrieve, modify\n"
232 "and use the current configuration as an alternate to whatever\n"
233 "configuration options you have selected at that time.\n"
235 "If you are uncertain what all this means then you should probably\n"
236 "leave this blank.\n"),
239 "Search for CONFIG_ symbols and display their relations.\n"
240 "Regular expressions are allowed.\n"
241 "Example: search for \"^FOO\"\n"
243 "-----------------------------------------------------------------\n"
245 "Prompt: Foo bus is used to drive the bar HW\n"
246 "Defined at drivers/pci/Kconfig:47\n"
247 "Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
249 " -> Bus options (PCI, PCMCIA, EISA, MCA, ISA)\n"
250 " -> PCI support (PCI [=y])\n"
251 " -> PCI access mode (<choice> [=y])\n"
252 "Selects: LIBCRC32\n"
254 "-----------------------------------------------------------------\n"
255 "o The line 'Prompt:' shows the text used in the menu structure for\n"
256 " this CONFIG_ symbol\n"
257 "o The 'Defined at' line tell at what file / line number the symbol\n"
259 "o The 'Depends on:' line tell what symbols needs to be defined for\n"
260 " this symbol to be visible in the menu (selectable)\n"
261 "o The 'Location:' lines tell where in the menu structure this symbol\n"
263 " A location followed by a [=y] indicate that this is a selectable\n"
264 " menu item - and current value is displayed inside brackets.\n"
265 "o The 'Selects:' line tell what symbol will be automatically\n"
266 " selected if this symbol is selected (y or m)\n"
267 "o The 'Selected by' line tell what symbol has selected this symbol\n"
269 "Only relevant lines are shown.\n"
272 "Examples: USB => find all CONFIG_ symbols containing USB\n"
273 " ^USB => find all CONFIG_ symbols starting with USB\n"
274 " USB$ => find all CONFIG_ symbols ending with USB\n"
278 static struct termios ios_org;
279 static int rows = 0, cols = 0;
280 static struct menu *current_menu;
281 static int child_count;
282 static int single_menu_mode;
284 static void conf(struct menu *menu);
285 static void conf_choice(struct menu *menu);
286 static void conf_string(struct menu *menu);
287 static void conf_load(void);
288 static void conf_save(void);
289 static void show_textbox(const char *title, const char *text, int r, int c);
290 static void show_helptext(const char *title, const char *text);
291 static void show_help(struct menu *menu);
293 static void init_wsize(void)
298 if (!ioctl(STDIN_FILENO, TIOCGWINSZ, &ws)) {
304 env = getenv("LINES");
311 env = getenv("COLUMNS");
318 if (rows < 19 || cols < 80) {
319 fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
320 fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
328 static void get_prompt_str(struct gstr *r, struct property *prop)
331 struct menu *submenu[8], *menu;
333 str_printf(r, "Prompt: %s\n", prop->text);
334 str_printf(r, " Defined at %s:%d\n", prop->menu->file->name,
336 if (!expr_is_yes(prop->visible.expr)) {
337 str_append(r, " Depends on: ");
338 expr_gstr_print(prop->visible.expr, r);
341 menu = prop->menu->parent;
342 for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent)
345 str_printf(r, " Location:\n");
346 for (j = 4; --i >= 0; j += 2) {
348 str_printf(r, "%*c-> %s", j, ' ', menu_get_prompt(menu));
350 str_printf(r, " (%s [=%s])", menu->sym->name ?
351 menu->sym->name : "<choice>",
352 sym_get_string_value(menu->sym));
359 static void get_symbol_str(struct gstr *r, struct symbol *sym)
362 struct property *prop;
364 if (sym && sym->name)
365 str_printf(r, "Symbol: %s [=%s]\n", sym->name,
366 sym_get_string_value(sym));
367 for_all_prompts(sym, prop)
368 get_prompt_str(r, prop);
370 for_all_properties(sym, prop, P_SELECT) {
372 str_append(r, " Selects: ");
375 str_printf(r, " && ");
376 expr_gstr_print(prop->expr, r);
380 if (sym->rev_dep.expr) {
381 str_append(r, " Selected by: ");
382 expr_gstr_print(sym->rev_dep.expr, r);
385 str_append(r, "\n\n");
388 static struct gstr get_relations_str(struct symbol **sym_arr)
391 struct gstr res = str_new();
394 for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
395 get_symbol_str(&res, sym);
397 str_append(&res, "No matches found.\n");
401 static char filename[PATH_MAX+1];
402 static void set_config_filename(const char *config_filename)
404 static char menu_backtitle[PATH_MAX+128];
408 sym = sym_lookup("KERNELVERSION", 0);
410 size = snprintf(menu_backtitle, sizeof(menu_backtitle),
411 _("%s - Linux Kernel v%s Configuration"),
412 config_filename, sym_get_string_value(sym));
413 if (size >= sizeof(menu_backtitle))
414 menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
415 set_dialog_backtitle(menu_backtitle);
417 size = snprintf(filename, sizeof(filename), "%s", config_filename);
418 if (size >= sizeof(filename))
419 filename[sizeof(filename)-1] = '\0';
423 static void search_conf(void)
425 struct symbol **sym_arr;
431 dres = dialog_inputbox(_("Search Configuration Parameter"),
432 _("Enter CONFIG_ (sub)string to search for "
433 "(with or without \"CONFIG\")"),
439 show_helptext(_("Search Configuration"), search_help);
445 /* strip CONFIG_ if necessary */
446 dialog_input = dialog_input_result;
447 if (strncasecmp(dialog_input_result, "CONFIG_", 7) == 0)
450 sym_arr = sym_re_search(dialog_input);
451 res = get_relations_str(sym_arr);
453 show_textbox(_("Search Results"), str_get(&res), 0, 0);
457 static void build_conf(struct menu *menu)
460 struct property *prop;
462 int type, tmp, doint = 2;
466 if (!menu_is_visible(menu))
472 if (prop && menu != current_menu) {
473 const char *prompt = menu_get_prompt(menu);
474 switch (prop->type) {
477 if (single_menu_mode) {
479 menu->data ? "-->" : "++>",
480 indent + 1, ' ', prompt);
482 item_make(" %*c%s --->", indent + 1, ' ', prompt);
486 if (single_menu_mode && menu->data)
492 item_make(" %*c*** %s ***", indent + 1, ' ', prompt);
500 item_make("---%*c%s", indent + 1, ' ', prompt);
510 type = sym_get_type(sym);
511 if (sym_is_choice(sym)) {
512 struct symbol *def_sym = sym_get_choice_value(sym);
513 struct menu *def_menu = NULL;
516 for (child = menu->list; child; child = child->next) {
517 if (menu_is_visible(child) && child->sym == def_sym)
521 val = sym_get_tristate_value(sym);
522 if (sym_is_changable(sym)) {
525 item_make("[%c]", val == no ? ' ' : '*');
529 case yes: ch = '*'; break;
530 case mod: ch = 'M'; break;
531 default: ch = ' '; break;
533 item_make("<%c>", ch);
540 item_set_tag(def_menu ? 't' : ':');
544 item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
547 item_add_str(" (%s)", menu_get_prompt(def_menu));
548 item_add_str(" --->");
549 if (def_menu->list) {
551 build_conf(def_menu);
558 if (menu == current_menu) {
559 item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
565 val = sym_get_tristate_value(sym);
566 if (sym_is_choice_value(sym) && val == yes) {
573 if (sym_is_changable(sym))
574 item_make("[%c]", val == no ? ' ' : '*');
576 item_make("-%c-", val == no ? ' ' : '*');
582 case yes: ch = '*'; break;
583 case mod: ch = 'M'; break;
584 default: ch = ' '; break;
586 if (sym_is_changable(sym)) {
587 if (sym->rev_dep.tri == mod)
588 item_make("{%c}", ch);
590 item_make("<%c>", ch);
592 item_make("-%c-", ch);
597 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
598 item_make("(%s)", sym_get_string_value(sym));
599 tmp = indent - tmp + 4;
602 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
603 (sym_has_value(sym) || !sym_is_changable(sym)) ?
610 item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
611 (sym_has_value(sym) || !sym_is_changable(sym)) ?
613 if (menu->prompt->type == P_MENU) {
614 item_add_str(" --->");
621 for (child = menu->list; child; child = child->next)
626 static void conf(struct menu *menu)
628 struct menu *submenu;
629 const char *prompt = menu_get_prompt(menu);
631 struct menu *active_menu = NULL;
641 if (menu == &rootmenu) {
644 item_make(_(" Load an Alternate Configuration File"));
646 item_make(_(" Save an Alternate Configuration File"));
650 res = dialog_menu(prompt ? prompt : _("Main Menu"),
651 _(menu_instructions),
652 active_menu, &s_scroll);
653 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
655 if (!item_activate_selected())
660 submenu = item_data();
661 active_menu = item_data();
669 switch (item_tag()) {
671 if (single_menu_mode)
672 submenu->data = (void *) (long) !submenu->data;
677 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
678 conf_choice(submenu);
679 else if (submenu->prompt->type == P_MENU)
683 conf_string(submenu);
697 show_helptext("README", _(mconf_readme));
700 if (item_is_tag('t')) {
701 if (sym_set_tristate_value(sym, yes))
703 if (sym_set_tristate_value(sym, mod))
704 show_textbox(NULL, setmod_text, 6, 74);
708 if (item_is_tag('t'))
709 sym_set_tristate_value(sym, no);
712 if (item_is_tag('t'))
713 sym_set_tristate_value(sym, mod);
716 if (item_is_tag('t'))
717 sym_toggle_tristate_value(sym);
718 else if (item_is_tag('m'))
728 static void show_textbox(const char *title, const char *text, int r, int c)
731 dialog_textbox(title, text, r, c);
734 static void show_helptext(const char *title, const char *text)
736 show_textbox(title, text, 0, 0);
739 static void show_help(struct menu *menu)
741 struct gstr help = str_new();
742 struct symbol *sym = menu->sym;
744 if (menu_has_help(menu))
747 str_printf(&help, "CONFIG_%s:\n\n", sym->name);
748 str_append(&help, _(menu_get_help(menu)));
749 str_append(&help, "\n");
752 str_append(&help, nohelp_text);
754 get_symbol_str(&help, sym);
755 show_helptext(menu_get_prompt(menu), str_get(&help));
759 static void conf_choice(struct menu *menu)
761 const char *prompt = menu_get_prompt(menu);
763 struct symbol *active;
765 active = sym_get_choice_value(menu->sym);
772 for (child = menu->list; child; child = child->next) {
773 if (!menu_is_visible(child))
775 item_make("%s", menu_get_prompt(child));
776 item_set_data(child);
777 if (child->sym == active)
778 item_set_selected(1);
779 if (child->sym == sym_get_choice_value(menu->sym))
783 res = dialog_checklist(prompt ? prompt : _("Main Menu"),
784 _(radiolist_instructions),
786 selected = item_activate_selected();
791 sym_set_tristate_value(child->sym, yes);
804 case -ERRDISPLAYTOOSMALL:
810 static void conf_string(struct menu *menu)
812 const char *prompt = menu_get_prompt(menu);
818 switch (sym_get_type(menu->sym)) {
820 heading = _(inputbox_instructions_int);
823 heading = _(inputbox_instructions_hex);
826 heading = _(inputbox_instructions_string);
829 heading = "Internal mconf error!";
832 res = dialog_inputbox(prompt ? prompt : _("Main Menu"),
834 sym_get_string_value(menu->sym));
837 if (sym_set_string_value(menu->sym, dialog_input_result))
839 show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
850 static void conf_load(void)
856 res = dialog_inputbox(NULL, load_config_text,
860 if (!dialog_input_result[0])
862 if (!conf_read(dialog_input_result)) {
863 set_config_filename(dialog_input_result);
866 show_textbox(NULL, _("File does not exist!"), 5, 38);
869 show_helptext(_("Load Alternate Configuration"), load_config_help);
877 static void conf_save(void)
882 res = dialog_inputbox(NULL, save_config_text,
886 if (!dialog_input_result[0])
888 if (!conf_write(dialog_input_result)) {
889 set_config_filename(dialog_input_result);
892 show_textbox(NULL, _("Can't create file! Probably a nonexistent directory."), 5, 60);
895 show_helptext(_("Save Alternate Configuration"), save_config_help);
903 static void conf_cleanup(void)
905 tcsetattr(1, TCSAFLUSH, &ios_org);
908 int main(int ac, char **av)
913 setlocale(LC_ALL, "");
914 bindtextdomain(PACKAGE, LOCALEDIR);
920 mode = getenv("MENUCONFIG_MODE");
922 if (!strcasecmp(mode, "single_menu"))
923 single_menu_mode = 1;
926 tcgetattr(1, &ios_org);
927 atexit(conf_cleanup);
931 set_config_filename(conf_get_configname());
935 if (conf_get_changed())
936 res = dialog_yesno(NULL,
937 _("Do you wish to save your "
938 "new kernel configuration?\n"
939 "<ESC><ESC> to continue."),
943 } while (res == KEY_ESC);
948 if (conf_write(filename)) {
949 fprintf(stderr, _("\n\n"
950 "Error during writing of the kernel configuration.\n"
951 "Your kernel configuration changes were NOT saved."
957 "*** End of Linux kernel configuration.\n"
958 "*** Execute 'make' to build the kernel or try 'make help'."
962 fprintf(stderr, _("\n\n"
963 "Your kernel configuration changes were NOT saved."