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 [*], <M> or [ ] represent features\n"
39 "configured to be built in, modularized or removed respectively.\n"
40 "Pointed brackets <> represent module capable features.\n"
42 "To change any of these features, highlight it with the cursor\n"
43 "keys and press <Y> to build it in, <M> to make it a module or\n"
44 "<N> to removed it. You may also press the <Space Bar> to cycle\n"
45 "through the available options (ie. Y->N->M->Y).\n"
47 "Some additional keyboard hints:\n"
51 "o Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
52 " you wish to change or submenu wish to select and press <Enter>.\n"
53 " Submenus are designated by \"--->\".\n"
55 " Shortcut: Press the option's highlighted letter (hotkey).\n"
56 " Pressing a hotkey more than once will sequence\n"
57 " through all visible items which use that hotkey.\n"
59 " You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
60 " unseen options into view.\n"
62 "o To exit a menu use the cursor keys to highlight the <Exit> button\n"
63 " and press <ENTER>.\n"
65 " Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
66 " using those letters. You may press a single <ESC>, but\n"
67 " there is a delayed response which you may find annoying.\n"
69 " Also, the <TAB> and cursor keys will cycle between <Select>,\n"
70 " <Exit> and <Help>\n"
72 "o To get help with an item, use the cursor keys to highlight <Help>\n"
73 " and Press <ENTER>.\n"
75 " Shortcut: Press <H> or <?>.\n"
78 "Radiolists (Choice lists)\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"
83 " Shortcut: Press the first letter of the option you wish to set then\n"
84 " press <S> or <SPACE BAR>.\n"
86 "o To see available help for the item, use the cursor keys to highlight\n"
87 " <Help> and Press <ENTER>.\n"
89 " Shortcut: Press <H> or <?>.\n"
91 " Also, the <TAB> and cursor keys will cycle between <Select> and\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"
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"
105 "Text Box (Help Window)\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 <SPACE BAR> and <B> for those\n"
109 " who are familiar with less and lynx.\n"
111 "o Press <E>, <X>, <Enter> or <Esc><Esc> to exit.\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 kernel configurations.\n"
120 "At the end of the main menu you will find two options. One is\n"
121 "for saving the current configuration to a file of your choosing.\n"
122 "The other option is for loading a previously saved alternate\n"
125 "Even if you don't use alternate configuration files, but you\n"
126 "find during a Menuconfig session that you have completely messed\n"
127 "up your settings, you may use the \"Load Alternate...\" option to\n"
128 "restore your previously saved settings from \".config\" without\n"
129 "restarting Menuconfig.\n"
131 "Other information\n"
132 "-----------------\n"
133 "If you use Menuconfig in an XTERM window make sure you have your\n"
134 "$TERM variable set to point to a xterm definition which supports color.\n"
135 "Otherwise, Menuconfig will look rather bad. Menuconfig will not\n"
136 "display correctly in a RXVT window because rxvt displays only one\n"
137 "intensity of color, bright.\n"
139 "Menuconfig will display larger menus on screens or xterms which are\n"
140 "set to display more than the standard 25 row by 80 column geometry.\n"
141 "In order for this to work, the \"stty size\" command must be able to\n"
142 "display the screen's current row and column geometry. I STRONGLY\n"
143 "RECOMMEND that you make sure you do NOT have the shell variables\n"
144 "LINES and COLUMNS exported into your environment. Some distributions\n"
145 "export those variables via /etc/profile. Some ncurses programs can\n"
146 "become confused when those variables (LINES & COLUMNS) don't reflect\n"
147 "the true screen size.\n"
149 "Optional personality available\n"
150 "------------------------------\n"
151 "If you prefer to have all of the kernel options listed in a single\n"
152 "menu, rather than the default multimenu hierarchy, run the menuconfig\n"
153 "with MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
155 "make MENUCONFIG_MODE=single_menu menuconfig\n"
157 "<Enter> will then unroll the appropriate category, or enfold it if it\n"
158 "is already unrolled.\n"
160 "Note that this mode can eventually be a little more CPU expensive\n"
161 "(especially with a larger number of unrolled categories) than the\n"
164 "Different color themes available\n"
165 "--------------------------------\n"
166 "It is possible to select different color themes using the variable\n"
167 "MENUCONFIG_COLOR. To select a theme use:\n"
169 "make MENUCONFIG_COLOR=<theme> menuconfig\n"
171 "Available themes are\n"
172 " mono => selects colors suitable for monochrome displays\n"
173 " blackbg => selects a color scheme with black background\n"
174 " classic => theme with blue background. The classic look\n"
175 " bluetitle => a LCD friendly version of classic. (default)\n"
177 menu_instructions[] = N_(
178 "Arrow keys navigate the menu. "
179 "<Enter> selects submenus --->. "
180 "Highlighted letters are hotkeys. "
181 "Pressing <Y> includes, <N> excludes, <M> modularizes features. "
182 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. "
183 "Legend: [*] built-in [ ] excluded <M> module < > module capable"),
184 radiolist_instructions[] = N_(
185 "Use the arrow keys to navigate this window or "
186 "press the hotkey of the item you wish to select "
187 "followed by the <SPACE BAR>. "
188 "Press <?> for additional information about this option."),
189 inputbox_instructions_int[] = N_(
190 "Please enter a decimal value. "
191 "Fractions will not be accepted. "
192 "Use the <TAB> key to move from the input field to the buttons below it."),
193 inputbox_instructions_hex[] = N_(
194 "Please enter a hexadecimal value. "
195 "Use the <TAB> key to move from the input field to the buttons below it."),
196 inputbox_instructions_string[] = N_(
197 "Please enter a string value. "
198 "Use the <TAB> key to move from the input field to the buttons below it."),
200 "This feature depends on another which has been configured as a module.\n"
201 "As a result, this feature will be built as a module."),
203 "There is no help available for this kernel option.\n"),
204 load_config_text[] = N_(
205 "Enter the name of the configuration file you wish to load. "
206 "Accept the name shown to restore the configuration you "
207 "last retrieved. Leave blank to abort."),
208 load_config_help[] = N_(
210 "For various reasons, one may wish to keep several different kernel\n"
211 "configurations available on a single machine.\n"
213 "If you have saved a previous configuration in a file other than the\n"
214 "kernel's default, entering the name of the file here will allow you\n"
215 "to modify that configuration.\n"
217 "If you are uncertain, then you have probably never used alternate\n"
218 "configuration files. You should therefor leave this blank to abort.\n"),
219 save_config_text[] = N_(
220 "Enter a filename to which this configuration should be saved "
221 "as an alternate. Leave blank to abort."),
222 save_config_help[] = N_(
224 "For various reasons, one may wish to keep different kernel\n"
225 "configurations available on a single machine.\n"
227 "Entering a file name here will allow you to later retrieve, modify\n"
228 "and use the current configuration as an alternate to whatever\n"
229 "configuration options you have selected at that time.\n"
231 "If you are uncertain what all this means then you should probably\n"
232 "leave this blank.\n"),
235 "Search for CONFIG_ symbols and display their relations.\n"
236 "Regular expressions are allowed.\n"
237 "Example: search for \"^FOO\"\n"
239 "-----------------------------------------------------------------\n"
241 "Prompt: Foo bus is used to drive the bar HW\n"
242 "Defined at drivers/pci/Kconfig:47\n"
243 "Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
245 " -> Bus options (PCI, PCMCIA, EISA, MCA, ISA)\n"
246 " -> PCI support (PCI [=y])\n"
247 " -> PCI access mode (<choice> [=y])\n"
248 "Selects: LIBCRC32\n"
250 "-----------------------------------------------------------------\n"
251 "o The line 'Prompt:' shows the text used in the menu structure for\n"
252 " this CONFIG_ symbol\n"
253 "o The 'Defined at' line tell at what file / line number the symbol\n"
255 "o The 'Depends on:' line tell what symbols needs to be defined for\n"
256 " this symbol to be visible in the menu (selectable)\n"
257 "o The 'Location:' lines tell where in the menu structure this symbol\n"
259 " A location followed by a [=y] indicate that this is a selectable\n"
260 " menu item - and current value is displayed inside brackets.\n"
261 "o The 'Selects:' line tell what symbol will be automatically\n"
262 " selected if this symbol is selected (y or m)\n"
263 "o The 'Selected by' line tell what symbol has selected this symbol\n"
265 "Only relevant lines are shown.\n"
268 "Examples: USB => find all CONFIG_ symbols containing USB\n"
269 " ^USB => find all CONFIG_ symbols starting with USB\n"
270 " USB$ => find all CONFIG_ symbols ending with USB\n"
274 static struct termios ios_org;
275 static int rows = 0, cols = 0;
276 static struct menu *current_menu;
277 static int child_count;
278 static int single_menu_mode;
280 static void conf(struct menu *menu);
281 static void conf_choice(struct menu *menu);
282 static void conf_string(struct menu *menu);
283 static void conf_load(void);
284 static void conf_save(void);
285 static void show_textbox(const char *title, const char *text, int r, int c);
286 static void show_helptext(const char *title, const char *text);
287 static void show_help(struct menu *menu);
289 static void init_wsize(void)
294 if (!ioctl(STDIN_FILENO, TIOCGWINSZ, &ws)) {
300 env = getenv("LINES");
307 env = getenv("COLUMNS");
314 if (rows < 19 || cols < 80) {
315 fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
316 fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
324 static void get_prompt_str(struct gstr *r, struct property *prop)
327 struct menu *submenu[8], *menu;
329 str_printf(r, "Prompt: %s\n", prop->text);
330 str_printf(r, " Defined at %s:%d\n", prop->menu->file->name,
332 if (!expr_is_yes(prop->visible.expr)) {
333 str_append(r, " Depends on: ");
334 expr_gstr_print(prop->visible.expr, r);
337 menu = prop->menu->parent;
338 for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent)
341 str_printf(r, " Location:\n");
342 for (j = 4; --i >= 0; j += 2) {
344 str_printf(r, "%*c-> %s", j, ' ', menu_get_prompt(menu));
346 str_printf(r, " (%s [=%s])", menu->sym->name ?
347 menu->sym->name : "<choice>",
348 sym_get_string_value(menu->sym));
355 static void get_symbol_str(struct gstr *r, struct symbol *sym)
358 struct property *prop;
360 if (sym && sym->name)
361 str_printf(r, "Symbol: %s [=%s]\n", sym->name,
362 sym_get_string_value(sym));
363 for_all_prompts(sym, prop)
364 get_prompt_str(r, prop);
366 for_all_properties(sym, prop, P_SELECT) {
368 str_append(r, " Selects: ");
371 str_printf(r, " && ");
372 expr_gstr_print(prop->expr, r);
376 if (sym->rev_dep.expr) {
377 str_append(r, " Selected by: ");
378 expr_gstr_print(sym->rev_dep.expr, r);
381 str_append(r, "\n\n");
384 static struct gstr get_relations_str(struct symbol **sym_arr)
387 struct gstr res = str_new();
390 for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
391 get_symbol_str(&res, sym);
393 str_append(&res, "No matches found.\n");
397 static char filename[PATH_MAX+1];
398 static void set_config_filename(const char *config_filename)
400 static char menu_backtitle[PATH_MAX+128];
404 sym = sym_lookup("KERNELVERSION", 0);
406 size = snprintf(menu_backtitle, sizeof(menu_backtitle),
407 _("%s - Linux Kernel v%s Configuration"),
408 config_filename, sym_get_string_value(sym));
409 if (size >= sizeof(menu_backtitle))
410 menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
411 set_dialog_backtitle(menu_backtitle);
413 size = snprintf(filename, sizeof(filename), "%s", config_filename);
414 if (size >= sizeof(filename))
415 filename[sizeof(filename)-1] = '\0';
419 static void search_conf(void)
421 struct symbol **sym_arr;
427 dres = dialog_inputbox(_("Search Configuration Parameter"),
428 _("Enter CONFIG_ (sub)string to search for "
429 "(with or without \"CONFIG\")"),
435 show_helptext(_("Search Configuration"), search_help);
441 /* strip CONFIG_ if necessary */
442 dialog_input = dialog_input_result;
443 if (strncasecmp(dialog_input_result, "CONFIG_", 7) == 0)
446 sym_arr = sym_re_search(dialog_input);
447 res = get_relations_str(sym_arr);
449 show_textbox(_("Search Results"), str_get(&res), 0, 0);
453 static void build_conf(struct menu *menu)
456 struct property *prop;
458 int type, tmp, doint = 2;
462 if (!menu_is_visible(menu))
468 if (prop && menu != current_menu) {
469 const char *prompt = menu_get_prompt(menu);
470 switch (prop->type) {
473 if (single_menu_mode) {
475 menu->data ? "-->" : "++>",
476 indent + 1, ' ', prompt);
478 item_make(" %*c%s --->", indent + 1, ' ', prompt);
482 if (single_menu_mode && menu->data)
488 item_make(" %*c*** %s ***", indent + 1, ' ', prompt);
496 item_make("---%*c%s", indent + 1, ' ', prompt);
506 type = sym_get_type(sym);
507 if (sym_is_choice(sym)) {
508 struct symbol *def_sym = sym_get_choice_value(sym);
509 struct menu *def_menu = NULL;
512 for (child = menu->list; child; child = child->next) {
513 if (menu_is_visible(child) && child->sym == def_sym)
517 val = sym_get_tristate_value(sym);
518 if (sym_is_changable(sym)) {
521 item_make("[%c]", val == no ? ' ' : '*');
525 case yes: ch = '*'; break;
526 case mod: ch = 'M'; break;
527 default: ch = ' '; break;
529 item_make("<%c>", ch);
536 item_set_tag(def_menu ? 't' : ':');
540 item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
543 item_add_str(" (%s)", menu_get_prompt(def_menu));
544 item_add_str(" --->");
545 if (def_menu->list) {
547 build_conf(def_menu);
554 if (menu == current_menu) {
555 item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
561 val = sym_get_tristate_value(sym);
562 if (sym_is_choice_value(sym) && val == yes) {
569 if (sym_is_changable(sym))
570 item_make("[%c]", val == no ? ' ' : '*');
578 case yes: ch = '*'; break;
579 case mod: ch = 'M'; break;
580 default: ch = ' '; break;
582 if (sym_is_changable(sym))
583 item_make("<%c>", ch);
590 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
591 item_make("(%s)", sym_get_string_value(sym));
592 tmp = indent - tmp + 4;
595 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
596 (sym_has_value(sym) || !sym_is_changable(sym)) ?
603 item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
604 (sym_has_value(sym) || !sym_is_changable(sym)) ?
606 if (menu->prompt->type == P_MENU) {
607 item_add_str(" --->");
614 for (child = menu->list; child; child = child->next)
619 static void conf(struct menu *menu)
621 struct menu *submenu;
622 const char *prompt = menu_get_prompt(menu);
624 struct menu *active_menu = NULL;
634 if (menu == &rootmenu) {
637 item_make(_(" Load an Alternate Configuration File"));
639 item_make(_(" Save an Alternate Configuration File"));
643 res = dialog_menu(prompt ? prompt : _("Main Menu"),
644 _(menu_instructions),
645 active_menu, &s_scroll);
646 if (res == 1 || res == KEY_ESC || res == -ERRDISPLAYTOOSMALL)
648 if (!item_activate_selected())
653 submenu = item_data();
654 active_menu = item_data();
662 switch (item_tag()) {
664 if (single_menu_mode)
665 submenu->data = (void *) (long) !submenu->data;
670 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
671 conf_choice(submenu);
672 else if (submenu->prompt->type == P_MENU)
676 conf_string(submenu);
690 show_helptext("README", _(mconf_readme));
693 if (item_is_tag('t')) {
694 if (sym_set_tristate_value(sym, yes))
696 if (sym_set_tristate_value(sym, mod))
697 show_textbox(NULL, setmod_text, 6, 74);
701 if (item_is_tag('t'))
702 sym_set_tristate_value(sym, no);
705 if (item_is_tag('t'))
706 sym_set_tristate_value(sym, mod);
709 if (item_is_tag('t'))
710 sym_toggle_tristate_value(sym);
711 else if (item_is_tag('m'))
721 static void show_textbox(const char *title, const char *text, int r, int c)
724 dialog_textbox(title, text, r, c);
727 static void show_helptext(const char *title, const char *text)
729 show_textbox(title, text, 0, 0);
732 static void show_help(struct menu *menu)
734 struct gstr help = str_new();
735 struct symbol *sym = menu->sym;
737 if (menu_has_help(menu))
740 str_printf(&help, "CONFIG_%s:\n\n", sym->name);
741 str_append(&help, _(menu_get_help(menu)));
742 str_append(&help, "\n");
745 str_append(&help, nohelp_text);
747 get_symbol_str(&help, sym);
748 show_helptext(menu_get_prompt(menu), str_get(&help));
752 static void conf_choice(struct menu *menu)
754 const char *prompt = menu_get_prompt(menu);
756 struct symbol *active;
758 active = sym_get_choice_value(menu->sym);
765 for (child = menu->list; child; child = child->next) {
766 if (!menu_is_visible(child))
768 item_make("%s", menu_get_prompt(child));
769 item_set_data(child);
770 if (child->sym == active)
771 item_set_selected(1);
772 if (child->sym == sym_get_choice_value(menu->sym))
776 res = dialog_checklist(prompt ? prompt : _("Main Menu"),
777 _(radiolist_instructions),
779 selected = item_activate_selected();
784 sym_set_tristate_value(child->sym, yes);
797 case -ERRDISPLAYTOOSMALL:
803 static void conf_string(struct menu *menu)
805 const char *prompt = menu_get_prompt(menu);
811 switch (sym_get_type(menu->sym)) {
813 heading = _(inputbox_instructions_int);
816 heading = _(inputbox_instructions_hex);
819 heading = _(inputbox_instructions_string);
822 heading = "Internal mconf error!";
825 res = dialog_inputbox(prompt ? prompt : _("Main Menu"),
827 sym_get_string_value(menu->sym));
830 if (sym_set_string_value(menu->sym, dialog_input_result))
832 show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
843 static void conf_load(void)
849 res = dialog_inputbox(NULL, load_config_text,
853 if (!dialog_input_result[0])
855 if (!conf_read(dialog_input_result)) {
856 set_config_filename(dialog_input_result);
859 show_textbox(NULL, _("File does not exist!"), 5, 38);
862 show_helptext(_("Load Alternate Configuration"), load_config_help);
870 static void conf_save(void)
875 res = dialog_inputbox(NULL, save_config_text,
879 if (!dialog_input_result[0])
881 if (!conf_write(dialog_input_result)) {
882 set_config_filename(dialog_input_result);
885 show_textbox(NULL, _("Can't create file! Probably a nonexistent directory."), 5, 60);
888 show_helptext(_("Save Alternate Configuration"), save_config_help);
896 static void conf_cleanup(void)
898 tcsetattr(1, TCSAFLUSH, &ios_org);
901 int main(int ac, char **av)
906 setlocale(LC_ALL, "");
907 bindtextdomain(PACKAGE, LOCALEDIR);
913 mode = getenv("MENUCONFIG_MODE");
915 if (!strcasecmp(mode, "single_menu"))
916 single_menu_mode = 1;
919 tcgetattr(1, &ios_org);
920 atexit(conf_cleanup);
924 set_config_filename(conf_get_configname());
928 if (conf_get_changed())
929 res = dialog_yesno(NULL,
930 _("Do you wish to save your "
931 "new kernel configuration?\n"
932 "<ESC><ESC> to continue."),
936 } while (res == KEY_ESC);
941 if (conf_write(filename)) {
942 fprintf(stderr, _("\n\n"
943 "Error during writing of the kernel configuration.\n"
944 "Your kernel configuration changes were NOT saved."
950 "*** End of Linux kernel configuration.\n"
951 "*** Execute 'make' to build the kernel or try 'make help'."
955 fprintf(stderr, _("\n\n"
956 "Your kernel configuration changes were NOT saved."